### 411 Environmental Protection Agency § 131.32

or authorized Tribe ’ s applicable water quality standard for purposes of the Act remains the applicable standard until EPA approves a change, deletion, or addition to that water quality standard, or until EPA promulgates a more stringent water quality standard.

(f) How can I find out what the applicable standards are for purposes of the Act? In each Regional office, EPA maintains a docket system for the States and authorized Tribes in thatRegion, available to the public, identifying the applicable water quality standards for purposes of the Act.

[48 FR 51405, Nov. 8, 1983, as amended at 60 FR 15387, Mar. 23, 1995; 65 FR 24653, Apr. 27, 2000]

§ 131.22 EPA promulgation of water quality standards.
(a) If the State does not adopt thechanges specified by the Regional Administrator within 90 days after notification of the Regional Administrator ’ s disapproval, the Administrator shall promptly propose and promulgate such standard.

(b) The Administrator may also propose and promulgate a regulation, applicable to one or more States, setting forth a new or revised standard upondetermining such a standard is necessary to meet the requirements of the Act.

(c) In promulgating water quality standards, the Administrator is subjectto the same policies, procedures, analyses, and public participation requirements established for States in these regulations.



### Subpart D

— Federally Promulgated Water Quality Standards

§ 131.31 Arizona.

(a) [Reserved](b) The following waters have, in addition to the uses designated by theState, the designated use of fish consumption as defined in R18

– 11

– 101 (which is available from the Arizona Department of Environmental Quality, Water Quality Division, 3033 North Central Ave., Phoenix, AZ 85012):

COLORADO MAIN STEM RIVER BASIN: Hualapai Wash MIDDLE GILA RIVER BASIN: Agua Fria River (Camelback Road to

Avondale WWTP) Galena Gulch Gila River (Felix Road to the Salt

River)Queen Creek (Headwaters to the Superior WWTP) Queen Creek (Below Potts Canyon) SAN PEDRO RIVER BASIN:

Copper Creek SANTA CRUZ RIVER BASIN:

Agua Caliente Wash Nogales Wash Sonoita Creek (Above the town of

Patagonia) Tanque Verde Creek Tinaja Wash Davidson Canyon UPPER GILA RIVER BASIN

Chase Creek (c) To implement the requirements of R18

– 11

– 108.A.5 with respect to effects of mercury on wildlife, EPA (or the Statewith the approval of EPA) shall implement a monitoring program to assessattainment of the water quality standard.

(Sec. 303, Federal Water Pollution Control Act, as amended, 33 U.S.C. 1313, 86 Stat. 816 et seq., Pub. L. 92

– 500; Clean Water Act, Pub. L. 92

– 500, as amended; 33 U.S.C. 1251 et seq.)

[41 FR 25000, June 22, 1976; 41 FR 48737, Nov. 5, 1976. Redesignated and amended at 42 FR 56740, Oct. 28, 1977. Further redesignated and amended at 48 FR 51408, Nov. 8, 1983; 61 FR 20693, May 7, 1996; 68 FR 62744, Nov. 6, 2003]

§ 131.32 Pennsylvania.

(a) Antidegradation policy. Thisantidegradation policy shall be applicable to all waters of the United Stateswithin the Commonwealth of Pennsylvania, including wetlands.

(1) Existing in-stream uses and thelevel of water quality necessary to protect the existing uses shall be maintained and protected.

(2) Where the quality of the waters exceeds levels necessary to supportpropagation of fish, shellfish, and wildlife and recreation in and on the water, that quality shall be maintained and protected unless the Commonwealth finds, after full satisfaction of the inter-governmental coordination and public participation provisions of the Commonwealth ’ s continuing planning process, that allowing lower water


### 412 40 CFR Ch. I (7

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quality is necessary to accommodateimportant economic or social development in the area in which the watersare located. In allowing such degradation or lower water quality, the Commonwealth shall assure water quality adequate to protect existing uses fully.Further, the Commonwealth shall assure that there shall be achieved thehighest statutory and regulatory requirements for all new and existing point sources and all cost-effective and reasonable best management practices for nonpoint sources.

(3) Where high quality waters areidentified as constituting an outstanding National resource, such as waters of National and State parks andwildlife refuges and water of exceptional recreational and ecological significance, that water quality shall be maintained and protected.

(b) [Reserved]

[61 FR 64822, Dec. 9, 1996]

§ 131.33 Idaho.

(a) Temperature criteria for bull trout

. (1) Except for those streams or portions of streams located in Indian country, or as may be modified by the RegionalAdministrator, EPA Region X, pursuant to paragraph (a)(3) of this section, a temperature criterion of 10 ° C, expressed as an average of daily maximum temperatures over a seven-dayperiod, applies to the waterbodies identified in paragraph (a)(2) of this sectionduring the months of June, July, August and September.

(2) The following waters are protected for bull trout spawning and rearing:

(i) BOISE-MORE BASIN: Devils Creek, East Fork Sheep Creek, Sheep Creek.

(ii) BROWNLEE RESERVOIR BASIN: Crooked River, Indian Creek.

(iii) CLEARWATER BASIN: Big Canyon Creek, Cougar Creek, Feather Creek, Laguna Creek, Lolo Creek, Orofino Creek, Talapus Creek, West Fork Potlatch River.

(iv) COEUR D ’ ALENE LAKE BASIN: Cougar Creek, Fernan Creek, Kid Creek, Mica Creek, South Fork Mica Creek, Squaw Creek, Turner Creek.

(v) HELLS CANYON BASIN: Dry Creek, East Fork Sheep Creek, Getta Creek, Granite Creek, Kurry Creek, Little Granite Creek, Sheep Creek.

(vi) LEMHI BASIN: Adams Creek, Alder Creek, Basin Creek, Bear Valley Creek, Big Eightmile Creek, Big Springs Creek, Big Timber Creek, BrayCreek, Bull Creek, Cabin Creek, Canyon Creek, Carol Creek, ChamberlainCreek, Clear Creek, Climb Creek, Cooper Creek, Dairy Creek, Deer Creek, Deer Park Creek, East Fork Hayden Creek, Eighteenmile Creek, Falls Creek, Ferry Creek, Ford Creek, Geertson Creek, Grove Creek, Hawley Creek, Hayden Creek, Kadletz Creek, Kenney Creek, Kirtley Creek, Lake Creek, Lee Creek, Lemhi River (above Big Eightmile Creek), Little Eightmile Creek, Little Mill Creek, Little Timber Creek, Middle Fork Little Timber Creek, Milk Creek, Mill Creek, Mogg Creek, North Fork Kirtley Creek,North Fork Little Timber Creek, Paradise Creek, Patterson Creek, Payne Creek, Poison Creek, Prospect Creek, Rocky Creek, Short Creek, Squaw Creek, Squirrel Creek, Tobias Creek, Trail Creek, West Fork Hayden Creek, Wright Creek.

(vii) LITTLE LOST BASIN: Badger Creek, Barney Creek, Bear Canyon, Bear Creek, Bell Mountain Creek, Big Creek, Bird Canyon, Black Creek, Buck Canyon, Bull Creek, Cedar Run Creek, Chicken Creek, Coal Creek, Corral Creek, Deep Creek, Dry Creek, Dry Creek Canal, Firbox Creek, Garfield Creek, Hawley Canyon, Hawley Creek, Horse Creek, Horse Lake Creek, Iron Creek, Jackson Creek, Little Lost River (above Badger Creek), MahoganyCreek, Main Fork Sawmill Creek, Massacre Creek, Meadow Creek, Mill Creek, Moffett Creek, Moonshine Creek, Quigley Creek, Red Rock Creek, Sands Creek, Sawmill Creek, Slide Creek, Smithie Fork, Squaw Creek, Summerhouse Canyon, Summit Creek, Timber Creek, Warm Creek, Wet Creek, Williams Creek.

(viii) LITTLE SALMON BASIN: Bascum Canyon, Boulder Creek, Brown Creek, Campbell Ditch, Castle Creek, Copper Creek, Granite Fork Lake Fork Rapid River, Hard Creek, Hazard Creek, Lake Fork Rapid River, Little Salmon River (above Hazard Creek), Paradise Creek, Pony Creek, Rapid


### 413 Environmental Protection Agency § 131.33

River, Squirrel Creek, Trail Creek, West Fork Rapid River.

(ix) LOCHSA BASIN: Apgar Creek, Badger Creek, Bald Mountain Creek, Beaver Creek, Big Flat Creek, Big Stew Creek, Boulder Creek, Brushy Fork, Cabin Creek, Castle Creek, Chain Creek, Cliff Creek, Coolwater Creek,Cooperation Creek, Crab Creek, Crooked Fork Lochsa River, Dan Creek, Deadman Creek, Doe Creek, Dutch Creek, Eagle Creek, East Fork Papoose Creek, East Fork Split Creek, East Fork Squaw Creek, Eel Creek, Fern Creek, Fire Creek, Fish Creek, Fish Lake Creek, Fox Creek, Gass Creek, Gold Creek, Ham Creek, Handy Creek, Hard Creek, Haskell Creek, Heather Creek, Hellgate Creek, Holly Creek, Hopeful Creek, Hungery Creek, Indian Grave Creek, Jay Creek, Kerr Creek, Kube Creek, Lochsa River, Lone Knob Creek, Lottie Creek, Macaroni Creek, Maud Creek, Middle Fork Clearwater River, No-see-um Creek, North Fork Spruce Creek, North Fork Storm Creek, Nut Creek, Otter Slide Creek, Pack Creek, Papoose Creek, Parachute Creek, Pass Creek, Pedro Creek, Pell Creek, Pete King Creek, Placer Creek, Polar Creek, Postoffice Creek, Queen Creek, Robin Creek, Rock Creek, Rye Patch Creek, Sardine Creek, Shoot Creek, Shotgun Creek, Skookum Creek, Snowshoe Creek, South Fork Spruce Creek, South Fork Storm Creek, Split Creek, Sponge Creek, Spring Creek, Spruce Creek, SquawCreek, Storm Creek, Tick Creek, Tomcat Creek, Tumble Creek, Twin Creek, Wag Creek, Walde Creek, Walton Creek, Warm Springs Creek, Weir Creek, Wendover Creek, West Fork Boulder Creek, West Fork Papoose Creek, West Fork Squaw Creek, West Fork Wendover Creek, White Sands Creek, Willow Creek.

(x) LOWER CLARK FORK BASIN: Cascade Creek, East Fork, East Fork Creek, East Forkast Fork Creek, Gold Creek, Johnson Creek, Lightning Creek, Mosquito Creek, Porcupine Creek, Rattle Creek, Spring Creek, Twin Creek, Wellington Creek.

(xi) LOWER KOOTENAI BASIN: Ball Creek, Boundary Creek, Brush Creek, Cabin Creek, Caribou Creek, Cascade Creek, Cooks Creek, Cow Creek, Curley Creek, Deep Creek, Grass Creek, Jim Creek, Lime Creek, Long Canyon Creek, Mack Creek, Mission Creek, Myrtle Creek, Peak Creek, Snow Creek, Trout Creek.

(xii) LOWER MIDDLE FORK SALMON BASIN: Acorn Creek, Alpine Creek, Anvil Creek, Arrastra Creek, Bar Creek, Beagle Creek, Beaver Creek, Belvidere Creek, Big Creek, Birdseye Creek, Boulder Creek, Brush Creek, Buck Creek, Bull Creek, Cabin Creek, Camas Creek, Canyon Creek, Castle Creek, Clark Creek, Coin Creek, Corner Creek, Coxey Creek, Crooked Creek, Doe Creek, Duck Creek, East Fork Holy Terror Creek, Fawn Creek, FlumeCreek, Fly Creek, Forge Creek, Furnace Creek, Garden Creek, Government Creek, Grouse Creek, Hammer Creek, Hand Creek, Holy Terror Creek, J Fell Creek, Jacobs Ladder Creek, Lewis Creek, Liberty Creek, Lick Creek,Lime Creek, Little Jacket Creek, Little Marble Creek, Little White Goat Creek, Little Woodtick Creek, Logan Creek, Lookout Creek, Loon Creek,Martindale Creek, Meadow Creek, Middle Fork Smith Creek, Monumental Creek, Moore Creek, Mulligan Creek, North Fork Smith Creek, Norton Creek, Placer Creek, Pole Creek, Rams Creek, Range Creek, Routson Creek, Rush Creek, Sawlog Creek, Sheep Creek, Sheldon Creek, Shellrock Creek, Ship Island Creek, Shovel Creek, Silver Creek, Smith Creek, Snowslide Creek, Soldier Creek, South Fork Camas Creek, South Fork Chamberlain Creek, South Fork Holy Terror Creek, South Fork Norton Creek, South Fork Rush Creek, South Fork Sheep Creek, Spider Creek, Spletts Creek, Telephone Creek, Trail Creek, Two Point Creek, West Fork Beaver Creek, West Fork Camas Creek, West Fork Monumental Creek, West Fork Rush Creek, White Goat Creek, Wilson Creek.

(xiii) LOWER NORTH FORK CLEARWATER BASIN: Adair Creek, Badger Creek, Bathtub Creek, Beaver Creek, Black Creek, Brush Creek, Buck Creek, Butte Creek, Canyon Creek, Caribou Creek, Crimper Creek, Dip Creek, Dog Creek, Elmer Creek, Falls Creek, Fern Creek, Goat Creek, Isabella Creek, John Creek, Jug Creek, Jungle Creek, Lightning Creek, Little Lost Lake Creek, Little North Fork Clearwater River, Lost Lake Creek, Lund Creek,


### 414 40 CFR Ch. I (7

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Montana Creek, Mowitch Creek, Papoose Creek, Pitchfork Creek, Rocky Run, Rutledge Creek, Spotted Louis Creek, Triple Creek, Twin Creek, West Fork Montana Creek, Willow Creek.

(xiv) LOWER SALMON BASIN: Bear Gulch, Berg Creek, East Fork John Day Creek, Elkhorn Creek, Fiddle Creek, French Creek, Hurley Creek, John Day Creek, Kelly Creek, Klip Creek, Lake Creek, Little Slate Creek, Little Van Buren Creek, No Business Creek, North Creek, North Fork Slate Creek, North Fork White Bird Creek, Partridge Creek, Slate Creek, Slide Creek, South Fork John Day Creek, South Fork White Bird Creek, Warm Springs Creek.

(xv) LOWER SELWAY BASIN: Anderson Creek, Bailey Creek, Browns Spring Creek, Buck Lake Creek, Butte Creek, Butter Creek, Cabin Creek, Cedar Creek, Chain Creek, Chute Creek, Dent Creek, Disgrace Creek, Double Creek, East Fork Meadow Creek, East Fork Moose Creek, Elbow Creek, Fivemile Creek, FourmileCreek, Gate Creek, Gedney Creek, Goddard Creek, Horse Creek, Indian Hill Creek, Little Boulder Creek, LittleSchwar Creek, Matteson Creek, Meadow Creek, Monument Creek, Moose Creek, Moss Creek, Newsome Creek, North Fork Moose Creek, Rhoda Creek, Saddle Creek, Schwar Creek, ShakeCreek, Spook Creek, Spur Creek, Tamarack Creek, West Fork Anderson Creek, West Fork Gedney Creek, West Moose Creek, Wounded Doe Creek.

(xvi) MIDDLE FORK CLEARWATER BASIN: Baldy Creek, Big Cedar Creek, Browns Spring Creek, Clear Creek, Middle Fork Clear Creek, Pine Knob Creek, South Fork Clear Creek.

(xvii) MIDDLE FORK PAYETTE BASIN: Bull Creek, Middle ForkPayette River (above Fool Creek), Oxtail Creek, Silver Creek, Sixteen-toone Creek.

(xviii) MIDDLE SALMON-CHAMBERLAIN BASIN: Arrow Creek, Bargamin Creek, Bat Creek, Bay Creek, Bear Creek, Bend Creek, Big Elkhorn Creek, Big Harrington Creek, Big Mallard Creek, Big Squaw Creek, Bleak Creek, Bronco Creek, Broomtail Creek, Brown Creek, Cayuse Creek, Center Creek, Chamberlain Creek, CliffCreek, Colt Creek, Corn Creek, Crooked Creek, Deer Creek, Dennis Creek, Disappointment Creek, Dismal Creek, Dog Creek, East Fork Fall Creek, East Fork Horse Creek, East Fork Noble Creek, Fall Creek, Filly Creek, Fish Creek, Flossie Creek, Game Creek, Gap Creek, Ginger Creek, Green Creek, Grouse Creek, Guard Creek, Hamilton Creek, Horse Creek, Hot Springs Creek, Hotzel Creek, Hungry Creek, Iodine Creek, Jack Creek, Jersey Creek, Kitchen Creek, Lake Creek, Little Horse Creek, Little Lodgepole Creek, Little Mallard Creek, Lodgepole Creek, Mayflower Creek, McCalla Creek, Meadow Creek, Moose Creek, Moose Jaw Creek, Mule Creek, Mustang Creek, No Name Creek, Owl Creek, Poet Creek, Pole Creek, Porcupine Creek, Prospector Creek, Pup Creek, Queen Creek, Rainey Creek, Ranch Creek, Rattlesnake Creek, Red Top Creek, Reynolds Creek, Rim Creek, Ring Creek, Rock Creek, Root Creek, Runaway Creek, Sabe Creek, Saddle Creek, Salt Creek, Schissler Creek, Sheep Creek, Short Creek, Shovel Creek, Skull Creek, Slaughter Creek, Slide Creek, South Fork Cottonwood Creek, South Fork Chamberlain Creek, South Fork Kitchen Creek, South Fork Salmon River, Spread Creek, Spring Creek, Starvation Creek, SteamboatCreek, Steep Creek, Stud Creek, Warren Creek, Webfoot Creek, West ForkChamberlain Creek, West Fork Rattlesnake Creek, West Horse Creek, Whimstick Creek, Wind River, Woods Fork Horse Creek.

(xix) MIDDLE SALMON-PANTHER BASIN: Allen Creek, Arnett Creek,Beaver Creek, Big Deer Creek, Blackbird Creek, Boulder Creek, Cabin Creek, Camp Creek, Carmen Creek, Clear Creek, Colson Creek, Copper Creek, Corral Creek, Cougar Creek, Cow Creek, Deadhorse Creek, Deep Creek, East Boulder Creek, Elkhorn Creek, Fawn Creek, Fourth Of July Creek, Freeman Creek, Homet Creek, Hughes Creek, Hull Creek, IndianCreek, Iron Creek, Jackass Creek, Jefferson Creek, Jesse Creek, Lake Creek, Little Deep Creek, Little Hat Creek, Little Sheep Creek, McConn Creek, McKim Creek, Mink Creek, Moccasin Creek, Moose Creek, Moyer Creek, Musgrove Creek, Napias Creek, North Fork Hughes Creek, North Fork Iron


### 415 Environmental Protection Agency § 131.33

Creek, North Fork Salmon River, North Fork Williams Creek, OpalCreek, Otter Creek, Owl Creek, Panther Creek, Park Creek, Phelan Creek, Pine Creek, Pony Creek, Porphyry Creek, Pruvan Creek, Rabbit Creek, Rancherio Creek, Rapps Creek, Salt Creek, Salzer Creek, Saw Pit Creek, Sharkey Creek, Sheep Creek, South Fork Cabin Creek, South Fork Iron Creek, South Fork Moyer Creek, South Fork Phelan Creek, South Fork Sheep Creek, South Fork Williams Creek, Spring Creek, Squaw Creek, Trail Creek, Twelvemile Creek, Twin Creek, Weasel Creek, West Fork Blackbird Creek, West Fork Iron Creek, Williams Creek, Woodtick Creek.

(xx) MOYIE BASIN: Brass Creek, Bussard Creek, Copper Creek, Deer Creek, Faro Creek, Keno Creek, Kreist Creek, Line Creek, McDougal Creek, Mill Creek, Moyie River (above Skin Creek), Placer Creek, Rutledge Creek, Skin Creek, Spruce Creek, West Branch Deer Creek.

(xxi) NORTH AND MIDDLE FORK BOISE BASIN: Abby Creek, Arrastra Creek, Bald Mountain Creek, Ballentyne Creek, Banner Creek, Bayhouse Creek, Bear Creek, Bear River, Big Gulch, Big Silver Creek, Billy Creek, Blackwarrior Creek, Bow Creek, Browns Creek, Buck Creek, Cabin Creek, Cahhah Creek, Camp Gulch, China Fork, Coma Creek, Corbus Creek, Cow Creek, Crooked River, Cub Creek, Decker Creek, Dutch Creek, Dutch Frank Creek, East Fork Roaring River, East Fork Swanholm Creek, East Fork Yuba River, Flint Creek, Flytrip Creek, Gotch Creek, Graham Creek, Granite Creek, Grays Creek, Greylock Creek, Grouse Creek, Hot Creek, Hungarian Creek, Joe Daley Creek, Johnson Creek, Kid Creek, King Creek, La Mayne Creek, Leggit Creek, Lightening Creek, Little Queens River, Little Silver Creek, Louise Creek, Lynx Creek, Mattingly Creek, McKay Creek, McLeod Creek, McPhearson Creek, Middle Fork Boise River (above Roaring River), Middle Fork Corbus Creek, Middle Fork Roaring River, Mill Creek, Misfire Creek, Montezuma Creek, North Fork Boise River (above Bear River), Phifer Creek, Pikes Fork, Quartz Gulch, Queens River, Rabbit Creek, Right Creek, Roaring River, Robin Creek, Rock Creek, Rockey Creek, Sawmill Creek, Scenic Creek, Scotch Creek, Scott Creek, Shorip Creek, Smith Creek, Snow Creek, Snowslide Creek, South Fork Corbus Creek, South Fork Cub Creek, Spout Creek, Steamboat Creek, Steel Creek, Steppe Creek, Swanholm Creek, TimpaCreek, Trail Creek, Trapper Creek, Tripod Creek, West Fork Creek, West Warrior Creek, Willow Creek, Yuba River.

(xxii) NORTH FORK PAYETTE BASIN: Gold Fork River, North Fork Gold Fork River, Pearsol Creek.

(xxiii) AHSIMEROI BASIN: Baby Creek, Bear Creek, Big Creek, Big Gulch, Burnt Creek, Christian Gulch, Dead Cat Canyon, Ditch Creek, DonkeyCreek, Doublespring Creek, Dry Canyon, Dry Gulch, East Fork Burnt Creek, East Fork Morgan Creek, EastFork Pahsimeroi River, East Fork Patterson Creek, Elkhorn Creek, Falls Creek, Goldberg Creek, Hillside Creek, Inyo Creek, Long Creek, Mahogany Creek, Mill Creek, Morgan Creek, Morse Creek, Mulkey Gulch, North Fork Big Creek, North Fork Morgan Creek, Pahsimeroi River (above Big Creek), Patterson Creek, Rock Spring Canyon, Short Creek, Snowslide Creek, South Fork Big Creek, Spring Gulch, Squaw Creek, Stinking Creek, Tater Creek, West Fork Burnt Creek, West Fork North Fork Big Creek.

(xxiv) PAYETTE BASIN: Squaw Creek, Third Fork Squaw Creek.

(xxv) PEND OREILLE LAKE BASIN: Branch North Gold Creek, Cheer Creek, Chloride Gulch, Dry Gulch, DyreeCreek, Flume Creek, Gold Creek, Granite Creek, Grouse Creek, Kick Bush Gulch, North Fork Grouse Creek, North Gold Creek, Plank Creek, Rapid Lightning Creek, South Fork GrouseCreek, Strong Creek, Thor Creek, Trestle Creek, West Branch Pack River, West Gold Creek, Wylie Creek, Zuni Creek.

(xxvi) PRIEST BASIN: Abandon Creek, Athol Creek, Bath Creek, Bear Creek, Bench Creek, Blacktail Creek, Bog Creek, Boulder Creek, Bugle Creek, Canyon Creek, Caribou Creek, Cedar Creek, Chicopee Creek, Deadman Creek, East Fork Trapper Creek, East River, Fedar Creek, Floss Creek, Gold Creek, Granite Creek, Horton Creek, Hughes Fork, Indian Creek, Jackson


### 416 40 CFR Ch. I (7

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– 08 Edition) § 131.33

Creek, Jost Creek, Kalispell Creek, Kent Creek, Keokee Creek, Lime Creek, Lion Creek, Lost Creek, Lucky Creek, Malcom Creek, Middle Fork East River, Muskegon Creek, North Fork Granite Creek, North Fork Indian Creek, Packer Creek, Rock Creek, Ruby Creek, South Fork Granite Creek, South Fork Indian Creek, South Fork Lion Creek, Squaw Creek, Tango Creek, Tarlac Creek, The Thorofare, Trapper Creek, Two Mouth Creek, Uleda Creek, Priest R. (above Priest Lake), Zero Creek.

(xxvii) SOUTH FORK BOISE BASIN: Badger Creek, Bear Creek, Bear Gulch, Big Smoky Creek, Big Water Gulch, Boardman Creek, Burnt Log Creek, Cayuse Creek, Corral Creek, Cow Creek, Edna Creek, Elk Creek, Emma Creek, Feather River, Fern Gulch, Grape Creek, Gunsight Creek, Haypress Creek, Heather Creek, Helen Creek, Johnson Creek, Lincoln Creek, Little Cayuse Creek, Little Rattlesnake Creek, Little Skeleton Creek, Little Smoky Creek, Loggy Creek, Mule Creek, North Fork Ross Fork, Pinto Creek, Rattlesnake Creek, Ross Fork, Russel Gulch, Salt Creek, Shake Creek, Skeleton Creek, Slater Creek, Smokey Dome Canyon, South Fork Ross Fork,Three Forks Creek, Tipton Creek, Vienna Creek, Weeks Gulch, West Fork Big Smoky Creek, West Fork SaltCreek, West Fork Skeleton Creek, Willow Creek.

(xxviii) SOUTH FORK CLEARWATER BASIN: American River, Baker Gulch, Baldy Creek, Bear Creek, Beaver Creek, Big Canyon Creek, Big Elk Creek, Blanco Creek, Boundary Creek, Box Sing Creek, Boyer Creek, Cartwright Creek, Cole Creek, Crooked River, Dawson Creek, Deer Creek, Ditch Creek, East Fork American River, East Fork Crooked River, Elk Creek, Fivemile Creek, Flint Creek, Fourmile Creek, Fox Creek, French Gulch, Galena Creek, Gospel Creek, Hagen Creek, Hays Creek, Johns Creek, Jungle Creek, Kirks Fork American River, Little Elk Creek, Little Moose Creek, Little Siegel Creek, Loon Creek, Mackey Creek, Meadow Creek, Melton Creek, Middle Fork Red River, Mill Creek, Monroe Creek, Moores Creek, Moores Lake Creek, Moose Butte Creek, Morgan Creek, Mule Creek, Newsome Creek, Nuggett Creek, Otterson Creek, Pat Brennan Creek, Pilot Creek, Quartz Creek, Queen Creek, Rabbit Creek, Rainbow Gulch, Red River, Relief Creek, Ryan Creek, Sally Ann Creek, Sawmill Creek, Schooner Creek, Schwartz Creek, Sharmon Creek, Siegel Creek, Silver Creek, Sixmile Creek, Sixtysix Creek, Snoose Creek, Sourdough Creek, South Fork Red River, Square MountainCreek, Swale Creek, Swift Creek, Taylor Creek, Tenmile Creek, Trail Creek, Trapper Creek, Trout Creek, Twentymile Creek, Twin Lakes Creek, Umatilla Creek, West Fork Big Elk Creek, West Fork Crooked River, West Fork Gospel Creek, West Fork Newsome Creek, West Fork Red River, West Fork Twentymile Creek, Whiskey Creek, Whitaker Creek, Williams Creek.

(xxix) SOUTH FORK PAYETTE BASIN: Archie Creek, Ash Creek, Baron Creek, Basin Creek, Bear Creek, Beaver Creek, Big Spruce Creek, Bitter Creek, Blacks Creek, Blue Jay Creek, Burn Creek, Bush Creek, Camp Creek, Canyon Creek, Casner Creek, Cat Creek, Chapman Creek, Charters Creek, Clear Creek, Coski Creek, Cup Creek, Dead Man Creek, DeadwoodRiver, Deer Creek, East Fork Deadwood Creek, East Fork Warm Springs Creek, Eby Creek, Elkhorn Creek, Emma Creek, Fall Creek, Fence Creek, Fern Creek, Fivemile Creek, Fox Creek, Garney Creek, Gates Creek, Goat Creek, Grandjem Creek, Grouse Creek, Habit Creek, Helende Creek,Horse Creek, Huckleberry Creek, Jackson Creek, Kettle Creek, Kirkham Creek, Lake Creek, Lick Creek, Little Tenmile Creek, Logging Gulch, Long Creek, MacDonald Creek, Meadow Creek, Middle Fork Warm Springs Creek, Miller Creek, Monument Creek, Moulding Creek, Ninemile Creek, No Man Creek, No Name Creek, North Fork Baron Creek, North Fork Canyon Creek, North Fork Deer Creek, North Fork Whitehawk Creek, O ’ Keefe Creek, Packsaddle Creek, Park Creek, Pass Creek, Pinchot Creek, Pine Creek, Pitchfork Creek, Pole Creek, Richards Creek, Road Fork Rock Creek, RockCreek, Rough Creek, Scott Creek, Silver Creek, Sixmile Creek, Smith Creek, Smokey Creek, South Fork Beaver


### 417 Environmental Protection Agency § 131.33

Creek, South Fork Canyon Creek, South Fork Clear Creek, South Fork Payette River (above Rock Creek), South Fork Scott Creek, South Fork Warm Spring Creek, Spring Creek, Steep Creek, Stratton Creek, Topnotch Creek, Trail Creek, Wapiti Creek, Warm Spring Creek, Warm Springs Creek, Whangdoodle Creek, Whitehawk Creek, Wild Buck Creek, Wills Gulch, Wilson Creek, Wolf Creek.

(xxx) SOUTH FORK SALMON BASIN: Alez Creek, Back Creek, Bear Creek, Bishop Creek, Blackmare Creek, Blue Lake Creek, Buck Creek, Buckhorn Bar Creek, Buckhorn Creek, Burgdorf Creek, Burntlog Creek, Cabin Creek, Calf Creek, Camp Creek, Cane Creek, Caton Creek, Cinnabar Creek, Cliff Creek, Cly Creek, Cougar Creek, Cow Creek, Cox Creek, Curtis Creek, Deep Creek, Dollar Creek, Dutch Creek, East Fork South Fork Salmon River, East Fork Zena Creek, Elk Creek, Enos Creek, Falls Creek, Fernan Creek, Fiddle Creek, Fitsum Creek, Flat Creek, Fourmile Creek, Goat Creek, Grimmet Creek, Grouse Creek, Halfway Creek, Hanson Creek, HaysCreek, Holdover Creek, Hum Creek, Indian Creek, Jeanette Creek, Johnson Creek, Josephine Creek, Jungle Creek, Knee Creek, Krassel Creek, Lake Creek, Landmark Creek, Lick Creek, Little Buckhorn Creek, Little Indian Creek, Lodgepole Creek, Loon Creek, Maverick Creek, Meadow Creek, Middle Fork Elk Creek, Missouri Creek, Moose Creek, Mormon Creek, Nasty Creek, Nethker Creek, Nick Creek, No Mans Creek, North Fork Bear Creek, North Fork Buckhorn Creek, North Fork Camp Creek, North Fork Dollar Creek, North Fork Fitsum Creek, North Fork Lake Fork, North Fork Lick Creek, North Fork Riordan Creek, North ForkSix-bit Creek, Oompaul Creek, Paradise Creek, Park Creek, Peanut Creek, Pepper Creek, Phoebe Creek, Piah Creek, Pid Creek, Pilot Creek, Pony Creek, Porcupine Creek, Porphyry Creek, Prince Creek, Profile Creek, Quartz Creek, Reeves Creek, Rice Creek, Riordan Creek, Roaring Creek, Ruby Creek, Rustican Creek, Ryan Creek, Salt Creek, Sand Creek, SeceshRiver, Sheep Creek, Silver Creek, Sister Creek, Six-Bit Creek, South Fork Bear Creek, South Fork Blackmare Creek, South Fork Buckhorn Creek, South Fork Cougar Creek, South Fork Elk Creek, South Fork Fitsum Creek, South Fork Fourmile Creek, South Fork Salmon River, South Fork Threemile Creek, Split Creek, Steep Creek, Sugar Creek, Summit Creek, Tamarack Creek, Teepee Creek, Threemile Creek, Trail Creek, TrapperCreek, Trout Creek, Tsum Creek, Twobit Creek, Tyndall Creek, Vein Creek, Victor Creek, Wardenhoff Creek, Warm Lake Creek, Warm Spring Creek, West Fork Buckhorn Creek, West Fork Elk Creek, West Fork Enos Creek, West Fork Zena Creek, Whangdoodle Creek, Willow Basket Creek, Willow Creek, Zena Creek.

(xxxi) ST. JOE R. BASIN: Bad Bear Creek, Bean Creek, Bear Creek, Beaver Creek, Bedrock Creek, Berge Creek, Bird Creek, Blue Grouse Creek, Boulder Creek, Broadaxe Creek, Bruin Creek, California Creek, Cherry Creek, Clear Creek, Color Creek, Copper Creek, Dolly Creek, Dump Creek, Eagle Creek, East Fork Bluff Creek, East Fork Gold Creek, Emerald Creek, Fishhook Creek, Float Creek, Fly Creek, FuzzyCreek, Gold Creek, Heller Creek, Indian Creek, Kelley Creek, Malin Creek, Marble Creek, Medicine Creek, Mica Creek, Mill Creek, Mosquito Creek, North Fork Bean Creek, North Fork Saint Joe River, North Fork Simmons Creek, Nugget Creek, Packsaddle Creek, Periwinkle Creek, Prospector Creek, Quartz Creek, Red Cross Creek, Red Ives Creek, Ruby Creek, Saint Joe River (above Siwash Creek), Setzer Creek, Sherlock Creek, Simmons Creek, Siwash Creek, Skookum Creek, Thomas Creek, Thorn Creek, Three Lakes Creek, Timber Creek, Tinear Creek, Trout Creek, Tumbledown Creek, Wahoo Creek, Washout Creek, Wilson Creek, Yankee Bar Creek.

(xxxii) UPPER COEUR D ’ ALENE BASIN: Brown Creek, Falls Creek, Graham Creek.

(xxxiii) UPPER KOOTENAI BASIN: Halverson Cr, North Callahan Creek, South Callahan Creek, West Fork Keeler Creek

(xxxiv) UPPER MIDDLE FORKSALMON BASIN: Asher Creek, Automatic Creek, Ayers Creek, Baldwin Creek, Banner Creek, Bear Creek, Bear Valley Creek, Bearskin Creek, Beaver


### 418 40 CFR Ch. I (7

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Creek, Bernard Creek, Big Chief Creek, Big Cottonwood Creek, Birch Creek, Blue Lake Creek, Blue Moon Creek,Boundary Creek, Bridge Creek, Browning Creek, Buck Creek, Burn Creek, Cabin Creek, Cache Creek, Camp Creek, Canyon Creek, Cap Creek, Cape Horn Creek, Casner Creek, Castle Fork, Casto Creek, Cat Creek, Chokebore Creek, Chuck Creek, Cliff Creek, Cold Creek, Collie Creek, Colt Creek, Cook Creek, Corley Creek, Cornish Creek,Cottonwood Creek, Cougar Creek, Crystal Creek, Cub Creek, Cultus Creek, Dagger Creek, Deer Creek, Deer Horn Creek, Doe Creek, Dry Creek, Duffield Creek, Dynamite Creek, Eagle Creek, East Fork Elk Creek, East Fork Indian Creek, East Fork Mayfield Creek, Elk Creek, Elkhorn Creek, Endoah Creek, Fall Creek, Fawn Creek, Feltham Creek, Fir Creek, Flat Creek, Float Creek, Foresight Creek, Forty-five Creek, Forty-four Creek, Fox Creek, Full Moon Creek, Fuse Creek, Grays Creek, Grenade Creek, Grouse Creek, Gun Creek, Half Moon Creek, Hogback Creek, Honeymoon Creek, Hot Creek, Ibex Creek, Indian Creek, Jose Creek, Kelly Creek, Kerr Creek, Knapp Creek, Kwiskwis Creek, Lime Creek, LincolnCreek, Little Beaver Creek, Little Cottonwood Creek, Little East Fork Elk Creek, Little Indian Creek, Little Loon Creek, Little Pistol Creek, Lola Creek, Loon Creek, Lucinda Creek, Lucky Creek, Luger Creek, Mace Creek, Mack Creek, Marble Creek, Marlin Creek, Marsh Creek, Mayfield Creek, McHoney Creek, McKee Creek, Merino Creek, Middle Fork Elkhorn Creek, Middle Fork Indian Creek, Middle Fork Salmon River (above Soldier Creek), Mine Creek, Mink Creek, Moonshine Creek, Mowitch Creek, Muskeg Creek, Mystery Creek, Nelson Creek, New Creek, No Name Creek, North Fork Elk Creek, North Fork Elkhorn Creek, North Fork Sheep Creek, North Fork Sulphur Creek, Papoose Creek, Parker Creek, Patrol Creek, Phillips Creek, Pierson Creek, Pinyon Creek, Pioneer Creek, Pistol Creek, Placer Creek, Poker Creek, Pole Creek, Popgun Creek, Porter Creek, Prospect Creek, Rabbit Creek, Rams Horn Creek, RangeCreek, Rapid River, Rat Creek, Remington Creek, Rock Creek, Rush Creek, Sack Creek, Safety Creek, Salt Creek, Savage Creek, Scratch Creek, Seafoam Creek, Shady Creek, Shake Creek, Sheep Creek, Sheep Trail Creek, ShellCreek, Shrapnel Creek, Siah Creek, Silver Creek, Slide Creek, SnowshoeCreek, Soldier Creek, South Fork Cottonwood Creek, South Fork Sheep Creek, Spike Creek, Springfield Creek,Squaw Creek, Sulphur Creek, Sunnyside Creek, Swamp Creek, Tennessee Creek, Thatcher Creek, Thicket Creek, Thirty-two Creek, Tomahawk Creek, Trail Creek, Trapper Creek, Trigger Creek, Twenty-two Creek, Vader Creek, Vanity Creek, Velvet Creek, Walker Creek, Wampum Creek, Warm Spring Creek, West Fork Elk Creek, West Fork Little Loon Creek, West Fork Mayfield Creek, White Creek, Wickiup Creek, Winchester Creek, Winnemucca Creek, Wyoming Creek.

(xxxv) UPPER NORTH FORK CLEARWATER BASIN: Adams Creek, Avalanche Creek, Bacon Creek, Ball Creek, Barn Creek, Barnard Creek, Barren Creek, Bear Creek, Beaver DamCreek, Bedrock Creek, Bill Creek, Bostonian Creek, Boundary Creek, Burn Creek, Butter Creek, Camp George Creek, Canyon Creek, Cayuse Creek, Chamberlain Creek, Clayton Creek, Cliff Creek, Coffee Creek, Cold Springs Creek, Collins Creek, Colt Creek, Cool Creek, Copper Creek, Corral Creek, Cougar Creek, Craig Creek, CraterCreek, Cub Creek, Davis Creek, Deadwood Creek, Deer Creek, Dill Creek, Drift Creek, Elizabeth Creek, Fall Creek, Fire Creek, Fix Creek, Flame Creek, Fly Creek, Fourth of July Creek, Fro Creek, Frog Creek, Frost Creek, Gilfillian Creek, Goose Creek, Grass Creek, Gravey Creek, Grizzly Creek, Hanson Creek, Heather Creek, Henry Creek, Hidden Creek, Howard Creek, Independence Creek, Jam Creek, Japanese Creek, Johnagan Creek, Johnny Creek, Junction Creek, Kelly Creek, Kid Lake Creek, Kodiak Creek, Lake Creek, Laundry Creek, Lightning Creek, Little Moose Creek, Little Weitas Creek, Liz Creek, Long Creek, Marten Creek, Meadow Creek, Middle Creek, Middle North Fork Kelly Creek, Mill Creek, Mire Creek, Monroe Creek, Moose Creek, Negro Creek, Nettle Creek, Niagra Gulch, North Fork Clearwater River (Fourth of July Creek), Nub Creek, Osier Creek, Perry


### 419 Environmental Protection Agency § 131.33

Creek, Pete Ott Creek, Placer Creek, Polar Creek, Post Creek, Potato Creek, Quartz Creek, Rapid Creek, Rawhide Creek, Roaring Creek, Rock Creek,Rocky Ridge Creek, Ruby Creek, Saddle Creek, Salix Creek, Scurry Creek, Seat Creek, Short Creek, Shot Creek, Siam Creek, Silver Creek, Skull Creek, Slide Creek, Smith Creek, Snow Creek, South Fork Kelly Creek, Spud Creek, Spy Creek, Stolen Creek, Stove Creek, Sugar Creek, Swamp Creek, Tinear Creek, Tinkle Creek, Toboggan Creek, Trail Creek, Vanderbilt Gulch, Wall Creek, Weitas Creek, Williams Creek, Windy Creek, Wolf Creek, Young Creek.

(xxxvi) UPPER SALMON BASIN: Alder Creek, Alpine Creek, Alta Creek, Alturas Lake Creek, Anderson Creek, Aspen Creek, Basin Creek, Bayhorse Creek, Bear Creek, Beaver Creek, Big Boulder Creek, Block Creek, Blowfly Creek, Blue Creek, Boundary Creek, Bowery Creek, Broken Ridge Creek, Bruno Creek, Buckskin Creek, Cabin Creek, Camp Creek, Cash Creek, Challis Creek, Chamberlain Creek,Champion Creek, Cherry Creek, Cinnabar Creek, Cleveland Creek, Coal Creek, Crooked Creek, Darling Creek, Deadwood Creek, Decker Creek, Deer Creek, Dry Creek, Duffy Creek, East Basin Creek, East Fork Salmon River, East Fork Valley Creek, East Pass Creek, Eddy Creek, Eightmile Creek, Elevenmile Creek, Elk Creek, Ellis Creek, Estes Creek, First Creek, Fisher Creek, Fishhook Creek, FivemileCreek, Fourth of July Creek, Frenchman Creek, Garden Creek, GermaniaCreek, Goat Creek, Gold Creek, Gooseberry Creek, Greylock Creek, Hay Creek, Hell Roaring Creek, Herd Creek, Huckleberry Creek, Iron Creek, Job Creek, Jordan Creek, Juliette Creek, Kelly Creek, Kinnikinic Creek, Lick Creek, Lightning Creek, Little Basin Creek, Little Beaver Creek, LittleBoulder Creek, Little West Fork Morgan Creek, Lodgepole Creek, Lone Pine Creek, Lost Creek, MacRae Creek, Martin Creek, McKay Creek, Meadow Creek, Mill Creek, Morgan Creek, Muley Creek, Ninemile Creek, Noho Creek, Pack Creek, Park Creek, Pat Hughes Creek, Pig Creek, Pole Creek, Pork Creek, Prospect Creek, Rainbow Creek, Redfish Lake Creek, Road Creek, Rough Creek, Sage Creek, Sagebrush Creek, Salmon River (Redfish Lake Creek), Sawmill Creek, Second Creek, Sevenmile Creek, Sheep Creek, Short Creek, Sixmile Creek, Slate Creek, Smiley Creek, South Fork East Fork Salmon River, Squaw Creek,Stanley Creek, Stephens Creek, Summit Creek, Sunday Creek, Swimm Creek, Taylor Creek, Tenmile Creek, Tennel Creek, Thompson Creek, Three Cabins Creek, Trail Creek, Trap Creek, Trealor Creek, Twelvemile Creek, Twin Creek, Valley Creek, Van Horn Creek, Vat Creek, Warm Spring Creek, Warm Springs Creek, Washington Creek, West Beaver Creek, West Fork Creek, West Fork East Fork Salmon River, West Fork Herd Creek, West Fork Morgan Creek, West Fork Yankee Fork, West Pass Creek, Wickiup Creek, Williams Creek, Willow Creek, Yankee Fork.

(xxxvii) UPPER SELWAY BASIN: Basin Creek, Bear Creek, Burn Creek, Camp Creek, Canyon Creek, Cliff Creek, Comb Creek, Cooper Creek, Cub Creek, Deep Creek, Eagle Creek, Elk Creek, Fall Creek, Fox Creek, Goat Creek, Gold Pan Creek, Granite Creek, Grass Gulch, Haystack Creek, Hells Half Acre Creek, Indian Creek, Kim Creek, Lake Creek, Langdon Gulch, Little Clearwater River, Lodge Creek, Lunch Creek, Mist Creek, Paloma Creek, Paradise Creek, Peach Creek,Pettibone Creek, Running Creek, Saddle Gulch, Schofield Creek, Selway River (above Pettibone Creek), SouthFork Running Creek, South Fork Saddle Gulch, South Fork Surprise Creek, Spruce Creek, Squaw Creek, Stripe Creek, Surprise Creek, Set Creek, Tepee Creek, Thirteen Creek, Three Lakes Creek, Triple Creek, Wahoo Creek, White Cap Creek, Wilkerson Creek, Witter Creek.

(xxxviii) WEISER BASIN: Anderson Creek, Bull Corral Creek, Dewey Creek, East Fork Weiser River, Little Weiser River, above Anderson Creek, Sheep Creek, Wolf Creek.

(3) Procedures for site specific modification of listed waterbodies or temperature criteria for bull trout.

(i) The Regional Administrator may, in his discretion, determine that the temperature criteria in paragraph (a)(1) of this section shall not apply to a specific waterbody or portion thereof


### 420 40 CFR Ch. I (7

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listed in paragraph (a)(2) of this section. Any such determination shall be made consistent with § 131.11 and shall be based on a finding that bull trout spawning and rearing is not an existinguse in such waterbody or portion thereof.

(ii) The Regional Administrator may, in his discretion, raise the temperaturecriteria in paragraph (a)(1) of this section as they pertain to a specific waterbody or portion thereof listed in paragraph (a)(2) of this section. Anysuch determination shall be made consistent with § 131.11, and shall be based on a finding that bull trout would befully supported at the higher temperature criteria.

(iii) For any determination made under paragraphs (a)(3)(i) or (a)(3)(ii) ofthis section, the Regional Administrator shall, prior to making such a determination, provide for public noticeof and comment on a proposed determination. For any such proposed determination, the Regional Administrator shall prepare and make available tothe public a technical support document addressing each waterbody or portion thereof that would be deleted or modified and the justification foreach proposed determination. This document shall be made available to the public not later than the date of public notice.

(iv) The Regional Administrator shall maintain and make available tothe public an updated list of determinations made pursuant to paragraphs (a)(3)(i) and (a)(3)(ii) of this section as well as the technical support documents for each determination.

(v) Nothing in this paragraph (a)(3) shall limit the Administrator ’ s authority to modify the temperature criteria in paragraph (a)(1) of this section or the list of waterbodies in paragraph(a)(2) of this section through rulemaking.

(b) Use designations for surface waters. In addition to the State adopted use designations, the following water body segments in Idaho are designated for cold water biota: Canyon Creek (PB 121)

— below mining impact; South Fork Coeur d ’ Alene River (PB 140S)

— Daisy Gulch to mouth; Blackfoot River (USB 360)

— Equalizing Dam to mouth, except for any portion in Indian country; Soda Creek (BB 310)

— source to mouth.

(c) Excluded waters. Lakes, ponds, pools, streams, and springs outsidepublic lands but located wholly and entirely upon a person ’ s land are not protected specifically or generally for any beneficial use, unless such waters are designated in Idaho 16.01.02.110.through 160., or, although not so designated, are waters of the United States as defined at 40 CFR 122.2.

(d) Water quality standard variances. (1) The Regional Administrator, EPA Region X, is authorized to grant variances from the water qualitystandards in paragraph (b) of this section where the requirements of this paragraph (d) are met. A water quality standard variance applies only to the permittee requesting the variance and only to the pollutant or pollutantsspecified in the variance; the underlying water quality standard otherwise remains in effect.

(2) A water quality standard variance shall not be granted if:

(i) Standards will be attained by implementing effluent limitations required under sections 301(b) and 306 ofthe CWA and by the permittee implementing reasonable best management practices for nonpoint source control;

or

(ii) The variance would likely jeopardize the continued existence of any threatened or endangered species listedunder section 4 of the Endangered Species Act or result in the destruction or adverse modification of such species ’ critical habitat.

(3) Subject to paragraph (d)(2) of thissection, a water quality standards variance may be granted if the applicant demonstrates to EPA that attainingthe water quality standard is not feasible because:

(i) Naturally occurring pollutant concentrations prevent the attainment of the use; or

(ii) Natural, ephemeral, intermittent or low flow conditions or water levelsprevent the attainment of the use, unless these conditions may be compensated for by the discharge of sufficient volume of effluent dischargeswithout violating State water conservation requirements to enable uses to be met; or


### 421 Environmental Protection Agency § 131.34

(iii) Human caused conditions orsources of pollution prevent the attainment of the use and cannot be remedied or would cause more environmental damage to correct than to leave in place; or

(iv) Dams, diversions or other types of hydrologic modifications preclude the attainment of the use, and it is not feasible to restore the waterbody to its original condition or to operate suchmodification in a way which would result in the attainment of the use; or

(v) Physical conditions related to the natural features of the waterbody, such as the lack of a proper substrate, cover, flow, depth, pools, riffles, and the like unrelated to water quality, preclude attainment of aquatic life protection

uses; or

(vi) Controls more stringent than those required by sections 301(b) and306 of the CWA would result in substantial and widespread economic and social impact.

(4) Procedures. An applicant for a water quality standards variance shallsubmit a request to the Regional Administrator not later than the date the applicant applies for an NPDES permit which would implement the variance, except that an application may be filed later if the need for the variance arisesor the data supporting the variance becomes available after the NPDES permit application is filed. The application shall include all relevant information showing that the requirements fora variance have been satisfied. The burden is on the applicant to demonstrate to EPA ’ s satisfaction that the designated use is unattainable for one of the reasons specified in paragraph (d)(3) of this section. If the RegionalAdministrator preliminarily determines that grounds exist for granting a variance, he shall publish notice of theproposed variance. Notice of a final decision to grant a variance shall also be published. EPA will incorporate into the permittee ’ s NPDES permit all conditions needed to implement the variance.

(5) A variance may not exceed 5 years or the term of the NPDES permit, whichever is less. A variance may be renewed if the applicant reapplies and demonstrates that the use in question is still not attainable. Renewal of the variance may be denied if the applicant did not comply with the conditions of the original variance.

[62 FR 41183, July 31, 1997, as amended at 67 FR 11248, Mar. 13, 2002]

§ 131.34 Kansas.

(a) In addition to the State-adopted use designations, the following water body segment in Kansas is designated for an expected aquatic life use:

Stream segment name HUC8 Segment # Designated use

**Basin: Missouri Subbasin: Independence-Sugar** 

Whiskey Creek ............................................................... 10240011 235 Expected Aquatic Life.

(b) In addition to the State-adopted use designations, the following water body segments and lakes in Kansas are designated for recreation uses as specified in the following table:

Stream segment name HUC8 Segment # Designated use

**Basin: Cimarron**
**Subbasin: Upper Cimarron-Bluff**

Big Sandy Creek ............................................................ 11040008 6 Primary Contact Recreation Gyp Creek ...................................................................... 11040008 25 Secondary Contact Recreation Indian Creek ................................................................... 11040008 14 Secondary Contact Recreation Kiger Creek .................................................................... 11040008 8 Secondary Contact Recreation Stink Creek ..................................................................... 11040008 17 Secondary Contact Recreation Two Mile Creek .............................................................. 11040008 15 Secondary Contact Recreation


### 422 40 CFR Ch. I (7

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Stream segment name HUC8 Segment # Designated use

**Subbasin: Lower Cimarron-Eagle Chief**

Anderson Creek ............................................................. 11050001 39 Primary Contact Recreation

**Basin: Kansas/Lower Republican**

**Subbasin: Middle Republican**

Antelope Creek .............................................................. 10250016 66 Secondary Contact Recreation Ash Creek ...................................................................... 10250016 65 Secondary Contact Recreation Bean Creek .................................................................... 10250016 76 Secondary Contact Recreation Cora Creek ..................................................................... 10250016 51 Secondary Contact Recreation Crow Creek (Crystal Creek) ........................................... 10250016 52 Secondary Contact Recreation Korb Creek ..................................................................... 10250016 72 Primary Contact Recreation Long Branch ................................................................... 10250016 68 Secondary Contact Recreation Lost Creek ...................................................................... 10250016 53 Primary Contact Recreation Louisa Creek .................................................................. 10250016 61 Secondary Contact Recreation Norway Creek ................................................................ 10250016 73 Secondary Contact Recreation Oak Creek ...................................................................... 10250016 75 Secondary Contact Recreation Rebecca Creek .............................................................. 10250016 39 Secondary Contact Recreation Spring Creek .................................................................. 10250016 71 Secondary Contact Recreation Spring Creek .................................................................. 10250016 78 Secondary Contact Recreation Taylor Creek ................................................................... 10250016 74 Secondary Contact Recreation Walnut Creek ................................................................. 10250016 40 Primary Contact Recreation Walnut Creek ................................................................. 10250016 46 Secondary Contact Recreation White Rock Creek, North Branch .................................. 10250016 60 Secondary Contact Recreation Wolf Creek ..................................................................... 10250016 67 Secondary Contact Recreation

**Subbasin: Lower Republican**

Cool Creek ..................................................................... 10250017 50 Secondary Contact Recreation Elm Creek, West Branch ............................................... 10250017 59 Secondary Contact Recreation Gar Creek ....................................................................... 10250017 12 Primary Contact Recreation Mud Creek ...................................................................... 10250017 63 Secondary Contact Recreation Turkey Creek .................................................................. 10250017 51 Secondary Contact Recreation

**Subbasin: Upper Kansas**

Dry Creek ....................................................................... 10270101 19 Primary Contact Recreation Humbolt Creek ............................................................... 10270101 10 Primary Contact Recreation Kitten Creek ................................................................... 10270101 14 Primary Contact Recreation Little Arkansas Creek ..................................................... 10270101 13 Primary Contact Recreation Little Kitten Creek ........................................................... 10270101 16 Primary Contact Recreation Mulberry Creek ............................................................... 10270101 20 Secondary Contact Recreation

**Subbasin: Middle Kansas**

Adams Creek ................................................................. 10270102 53 Secondary Contact Recreation Bartlett Creek ................................................................. 10270102 55 Secondary Contact Recreation Big Elm Creek ................................................................ 10270102 90 Secondary Contact Recreation Blackjack Creek ............................................................. 10270102 64 Secondary Contact Recreation Blacksmith Creek ........................................................... 10270102 102 Secondary Contact Recreation Bourbonais Creek .......................................................... 10270102 63 Primary Contact Recreation Brush Creek ................................................................... 10270102 57 Primary Contact Recreation Coal Creek ..................................................................... 10270102 46 Secondary Contact Recreation Coryell Creek ................................................................. 10270102 94 Secondary Contact Recreation Cow Creek ..................................................................... 10270102 45 Secondary Contact Recreation Crow Creek .................................................................... 10270102 86 Primary Contact Recreation Darnells Creek ............................................................... 10270102 51 Secondary Contact Recreation Dog Creek ...................................................................... 10270102 78 Secondary Contact Recreation Doyle Creek ................................................................... 10270102 69 Primary Contact Recreation Dry Creek ....................................................................... 10270102 79 Primary Contact Recreation Dutch Creek ................................................................... 10270102 92 Secondary Contact Recreation Elm Creek ...................................................................... 10270102 98 Primary Contact Recreation Elm Creek ...................................................................... 10270102 103 Secondary Contact Recreation Elm Slough ..................................................................... 10270102 58 Secondary Contact Recreation Emmons Creek .............................................................. 10270102 66 Secondary Contact Recreation French Creek ................................................................. 10270102 19 Primary Contact Recreation Gilson Creek .................................................................. 10270102 47 Secondary Contact Recreation Hendricks Creek ............................................................. 10270102 73 Primary Contact Recreation Hise Creek ..................................................................... 10270102 43 Secondary Contact Recreation Indian Creek ................................................................... 10270102 20 Secondary Contact Recreation James Creek .................................................................. 10270102 87 Secondary Contact Recreation Jim Creek ....................................................................... 10270102 52 Secondary Contact Recreation Johnson Creek ............................................................... 10270102 84 Secondary Contact Recreation


### 423 Environmental Protection Agency § 131.34

Stream segment name HUC8 Segment # Designated use

Kuenzli Creek ................................................................. 10270102 82 Secondary Contact Recreation Little Cross Creek .......................................................... 10270102 61 Secondary Contact Recreation Little Muddy Creek ......................................................... 10270102 99 Primary Contact Recreation Loire Creek ..................................................................... 10270102 80 Primary Contact Recreation Lost Creek ...................................................................... 10270102 60 Secondary Contact Recreation Messhoss Creek ............................................................ 10270102 96 Primary Contact Recreation Mud Creek ...................................................................... 10270102 44 Secondary Contact Recreation Mud Creek ...................................................................... 10270102 56 Secondary Contact Recreation Muddy Creek, West Fork ............................................... 10270102 93 Secondary Contact Recreation Mulberry Creek ............................................................... 10270102 42 Secondary Contact Recreation Mulberry Creek ............................................................... 10270102 77 Secondary Contact Recreation Nehring Creek ................................................................ 10270102 81 Primary Contact Recreation Paw Paw Creek ............................................................. 10270102 75 Secondary Contact Recreation Pleasant Hill Run Creek ................................................. 10270102 23 Primary Contact Recreation Pomeroy Creek .............................................................. 10270102 59 Secondary Contact Recreation Post Creek ..................................................................... 10270102 101 Secondary Contact Recreation Pretty Creek ................................................................... 10270102 74 Secondary Contact Recreation Rock Creek .................................................................... 10270102 21 Primary Contact Recreation Rock Creek, East Fork ................................................... 10270102 22 Secondary Contact Recreation Ross Creek .................................................................... 10270102 35 Secondary Contact Recreation Salt Creek ...................................................................... 10270102 88 Secondary Contact Recreation Sand Creek .................................................................... 10270102 65 Secondary Contact Recreation Shunganunga Creek, South Branch .............................. 10270102 106 Primary Contact Recreation Snake Creek .................................................................. 10270102 95 Secondary Contact Recreation Snokomo Creek ............................................................. 10270102 85 Secondary Contact Recreation Spring Creek .................................................................. 10270102 48 Secondary Contact Recreation Spring Creek .................................................................. 10270102 54 Primary Contact Recreation Spring Creek .................................................................. 10270102 76 Secondary Contact Recreation Spring Creek .................................................................. 10270102 105 Secondary Contact Recreation Sullivan Creek ................................................................ 10270102 89 Primary Contact Recreation Tecumseh Creek ............................................................ 10270102 107 Secondary Contact Recreation Turkey Creek .................................................................. 10270102 71 Primary Contact Recreation Unnamed Stream ........................................................... 10270102 8 Secondary Contact Recreation Vassar Creek ................................................................. 10270102 100 Secondary Contact Recreation Vermillion Creek ............................................................. 10270102 15 Primary Contact Recreation Walnut Creek ................................................................. 10270102 91 Secondary Contact Recreation Wells Creek .................................................................... 10270102 68 Secondary Contact Recreation Whetstone Creek ........................................................... 10270102 104 Secondary Contact Recreation Wilson Creek .................................................................. 10270102 50 Primary Contact Recreation Wolf Creek ..................................................................... 10270102 49 Primary Contact Recreation

**Subbasin: Delaware**

Banner Creek ................................................................. 10270103 45 Secondary Contact Recreation Barnes Creek ................................................................. 10270103 39 Secondary Contact Recreation Bills Creek ...................................................................... 10270103 47 Secondary Contact Recreation Brush Creek ................................................................... 10270103 44 Secondary Contact Recreation Brush Creek ................................................................... 10270103 54 Primary Contact Recreation Burr Oak Branch ............................................................ 10270103 8 Primary Contact Recreation Catamount Creek ........................................................... 10270103 49 Primary Contact Recreation Cedar Creek, North ........................................................ 10270103 46 Primary Contact Recreation Claywell Creek ............................................................... 10270103 56 Primary Contact Recreation Clear Creek .................................................................... 10270103 19 Primary Contact Recreation Coal Creek ..................................................................... 10270103 50 Primary Contact Recreation Grasshopper Creek ........................................................ 10270103 18 Primary Contact Recreation Grasshopper Creek ........................................................ 10270103 20 Primary Contact Recreation Gregg Creek ................................................................... 10270103 24 Primary Contact Recreation Honey Creek .................................................................. 10270103 55 Secondary Contact Recreation Little Grasshopper Creek ............................................... 10270103 16 Secondary Contact Recreation Little Wild Horse Creek .................................................. 10270103 57 Primary Contact Recreation Mission Creek ................................................................ 10270103 40 Primary Contact Recreation Nebo Creek .................................................................... 10270103 48 Secondary Contact Recreation Negro Creek ................................................................... 10270103 43 Secondary Contact Recreation Otter Creek ..................................................................... 10270103 41 Secondary Contact Recreation Plum Creek .................................................................... 10270103 36 Secondary Contact Recreation Rock Creek .................................................................... 10270103 34 Primary Contact Recreation Rock Creek .................................................................... 10270103 53 Primary Contact Recreation Spring Creek .................................................................. 10270103 42 Primary Contact Recreation Squaw Creek .................................................................. 10270103 38 Secondary Contact Recreation Straight Creek ................................................................ 10270103 28 Secondary Contact Recreation Tick Creek ...................................................................... 10270103 52 Primary Contact Recreation Unnamed Stream ........................................................... 10270103 31 Secondary Contact Recreation Walnut Creek ................................................................. 10270103 51 Primary Contact Recreation Wolfley Creek ................................................................. 10270103 27 Secondary Contact Recreation


### 424 40 CFR Ch. I (7

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Stream segment name HUC8 Segment # Designated use

**Subbasin: Lower Kansas**

Baldwin Creek ................................................................ 10270104 69 Secondary Contact Recreation Brush Creek ................................................................... 10270104 49 Secondary Contact Recreation Brush Creek, West ......................................................... 10270104 46 Secondary Contact Recreation Buttermilk Creek ............................................................. 10270104 44 Secondary Contact Recreation Camp Creek ................................................................... 10270104 41 Secondary Contact Recreation Camp Creek ................................................................... 10270104 74 Secondary Contact Recreation Captain Creek ................................................................ 10270104 72 Primary Contact Recreation Chicken Creek ................................................................ 10270104 79 Secondary Contact Recreation Clear Creek .................................................................... 10270104 383 Primary Contact Recreation Cow Creek ..................................................................... 10270104 58 Secondary Contact Recreation Crooked Creek ............................................................... 10270104 10 Primary Contact Recreation Crooked Creek ............................................................... 10270104 12 Primary Contact Recreation Dawson Creek ................................................................ 10270104 45 Secondary Contact Recreation Elk Creek ........................................................................ 10270104 68 Primary Contact Recreation Full Creek ....................................................................... 10270104 52 Primary Contact Recreation Hanson Creek ................................................................ 10270104 437 Secondary Contact Recreation Hog Creek ...................................................................... 10270104 54 Secondary Contact Recreation Howard Creek ................................................................ 10270104 43 Secondary Contact Recreation Hulls Branch ................................................................... 10270104 42 Secondary Contact Recreation Indian Creek ................................................................... 10270104 48 Secondary Contact Recreation Jarbalo Creek ................................................................. 10270104 51 Secondary Contact Recreation Kent Creek ..................................................................... 10270104 73 Secondary Contact Recreation Kill Creek ........................................................................ 10270104 37 Primary Contact Recreation Little Cedar Creek .......................................................... 10270104 76 Primary Contact Recreation Little Mill Creek .............................................................. 10270104 78 Primary Contact Recreation Little Turkey Creek ......................................................... 10270104 62 Primary Contact Recreation Little Wakarusa Creek .................................................... 10270104 71 Primary Contact Recreation Mission Creek, East ....................................................... 10270104 61 Secondary Contact Recreation Ninemile Creek ............................................................... 10270104 15 Secondary Contact Recreation Ninemile Creek ............................................................... 10270104 17 Primary Contact Recreation Oakley Creek ................................................................. 10270104 56 Secondary Contact Recreation Plum Creek .................................................................... 10270104 50 Secondary Contact Recreation Prairie Creek .................................................................. 10270104 47 Secondary Contact Recreation Rock Creek .................................................................... 10270104 35 Primary Contact Recreation Scatter Creek ................................................................. 10270104 13 Secondary Contact Recreation Spoon Creek .................................................................. 10270104 75 Secondary Contact Recreation Stone Horse Creek ........................................................ 10270104 57 Secondary Contact Recreation Stranger Creek ............................................................... 10270104 7 Primary Contact Recreation Stranger Creek ............................................................... 10270104 8 Primary Contact Recreation Stranger Creek ............................................................... 10270104 9 Primary Contact Recreation Tonganoxie Creek .......................................................... 10270104 14 Primary Contact Recreation Tooley Creek .................................................................. 10270104 379 Secondary Contact Recreation Turkey Creek .................................................................. 10270104 77 Primary Contact Recreation Unnamed Stream ........................................................... 10270104 11 Primary Contact Recreation Unnamed Stream ........................................................... 10270104 16 Secondary Contact Recreation Wakarusa River, Middle Branch .................................... 10270104 64 Secondary Contact Recreation Wakarusa River, South Branch ..................................... 10270104 63 Primary Contact Recreation Washington Creek .......................................................... 10270104 36 Primary Contact Recreation Yankee Tank Creek ....................................................... 10270104 70 Primary Contact Recreation

**Subbasin: Lower Big Blue**

Ackerman Creek ............................................................ 10270205 49 Secondary Contact Recreation Black Vermillion River, Clear Fork ................................. 10270205 9 Primary Contact Recreation Black Vermillion River, North Fork ................................. 10270205 15 Secondary Contact Recreation Black Vermillion River, South Fork ................................ 10270205 12 Secondary Contact Recreation Bluff Creek ..................................................................... 10270205 573 Primary Contact Recreation Bommer Creek ............................................................... 10270205 40 Secondary Contact Recreation Busksnort Creek ............................................................. 10270205 566 Secondary Contact Recreation Carter Creek ................................................................... 10270205 59 Secondary Contact Recreation Cedar Creek ................................................................... 10270205 56 Secondary Contact Recreation Corndodger Creek .......................................................... 10270205 52 Primary Contact Recreation De Shazer Creek ........................................................... 10270205 55 Secondary Contact Recreation Deadman Creek ............................................................. 10270205 60 Secondary Contact Recreation Deer Creek ..................................................................... 10270205 36 Secondary Contact Recreation Dog Walk Creek ............................................................. 10270205 53 Secondary Contact Recreation Dutch Creek ................................................................... 10270205 44 Primary Contact Recreation Elm Creek ...................................................................... 10270205 46 Secondary Contact Recreation Elm Creek, North ........................................................... 10270205 41 Secondary Contact Recreation Fancy Creek, North Fork ............................................... 10270205 61 Secondary Contact Recreation Fancy Creek, West ........................................................ 10270205 29 Primary Contact Recreation Game Fork ..................................................................... 10270205 54 Secondary Contact Recreation


### 425 Environmental Protection Agency § 131.34

Stream segment name HUC8 Segment # Designated use

Hop Creek ...................................................................... 10270205 43 Secondary Contact Recreation Indian Creek ................................................................... 10270205 37 Secondary Contact Recreation Jim Creek ....................................................................... 10270205 57 Secondary Contact Recreation Johnson Fork ................................................................. 10270205 51 Secondary Contact Recreation Kearney Branch ............................................................. 10270205 58 Secondary Contact Recreation Lily Creek ....................................................................... 10270205 39 Secondary Contact Recreation Little Indian Creek .......................................................... 10270205 35 Secondary Contact Recreation Little Timber Creek ......................................................... 10270205 48 Primary Contact Recreation Meadow Creek ............................................................... 10270205 34 Secondary Contact Recreation Mission Creek ................................................................ 10270205 22 Primary Contact Recreation Murdock Creek ............................................................... 10270205 42 Secondary Contact Recreation Otter Creek ..................................................................... 10270205 67 Secondary Contact Recreation Otter Creek, North .......................................................... 10270205 62 Primary Contact Recreation Perkins Creek ................................................................. 10270205 47 Secondary Contact Recreation Phiel Creek ..................................................................... 10270205 68 Primary Contact Recreation Raemer Creek ................................................................ 10270205 33 Primary Contact Recreation Robidoux Creek ............................................................. 10270205 16 Primary Contact Recreation Schell Creek ................................................................... 10270205 45 Primary Contact Recreation School Branch ................................................................ 10270205 63 Secondary Contact Recreation Scotch Creek .................................................................. 10270205 38 Secondary Contact Recreation Spring Creek .................................................................. 10270205 19 Primary Contact Recreation Spring Creek .................................................................. 10270205 65 Primary Contact Recreation Timber Creek ................................................................. 10270205 64 Primary Contact Recreation Weyer Creek .................................................................. 10270205 50 Secondary Contact Recreation

**Subbasin: Upper Little Blue**

Dry Creek ....................................................................... 10270206 41 Secondary Contact Recreation

**Subbasin: Lower Little Blue**

Ash Creek ...................................................................... 10270207 36 Secondary Contact Recreation Beaver Creek ................................................................. 10270207 38 Secondary Contact Recreation Bolling Creek .................................................................. 10270207 42 Secondary Contact Recreation Bowman Creek ............................................................... 10270207 21 Secondary Contact Recreation Buffalo Creek ................................................................. 10270207 32 Secondary Contact Recreation Camp Creek ................................................................... 10270207 35 Secondary Contact Recreation Camp Creek ................................................................... 10270207 44 Primary Contact Recreation Cedar Creek ................................................................... 10270207 40 Secondary Contact Recreation Cherry Creek .................................................................. 10270207 25 Secondary Contact Recreation Coon Creek .................................................................... 10270207 23 Primary Contact Recreation Fawn Creek .................................................................... 10270207 45 Secondary Contact Recreation Gray Branch ................................................................... 10270207 27 Secondary Contact Recreation Humphrey Branch .......................................................... 10270207 24 Secondary Contact Recreation Iowa Creek ..................................................................... 10270207 34 Secondary Contact Recreation Jones Creek ................................................................... 10270207 29 Secondary Contact Recreation Joy Creek ....................................................................... 10270207 13 Secondary Contact Recreation Lane Branch ................................................................... 10270207 39 Secondary Contact Recreation Malone Creek ................................................................. 10270207 37 Secondary Contact Recreation Melvin Creek .................................................................. 10270207 33 Secondary Contact Recreation Mercer Creek ................................................................. 10270207 43 Primary Contact Recreation Mill Creek, South Fork ................................................... 10270207 31 Secondary Contact Recreation Myer Creek ..................................................................... 10270207 26 Secondary Contact Recreation Riddle Creek .................................................................. 10270207 17 Secondary Contact Recreation Rose Creek .................................................................... 10270207 12 Secondary Contact Recreation Salt Creek ...................................................................... 10270207 19 Primary Contact Recreation School Creek .................................................................. 10270207 49 Primary Contact Recreation Silver Creek .................................................................... 10270207 28 Primary Contact Recreation Spring Creek .................................................................. 10270207 15 Secondary Contact Recreation Spring Creek .................................................................. 10270207 30 Secondary Contact Recreation Walnut Creek ................................................................. 10270207 41 Primary Contact Recreation

**Basin: Lower Arkansas**

**Subbasin: Rattlesnake**

Spring Creek .................................................................. 11030009 7 Secondary Contact Recreation

**Subbasin: Gar-Peace**

Gar Creek ....................................................................... 11030010 8 Primary Contact Recreation

**Subbasin: Cow**

Blood Creek ................................................................... 11030011 15 Secondary Contact Recreation


### 426 40 CFR Ch. I (7

– 1

– 08 Edition) § 131.34

Stream segment name HUC8 Segment # Designated use

Deception Creek ............................................................ 11030011 13 Secondary Contact Recreation Dry Creek ....................................................................... 11030011 22 Primary Contact Recreation Jarvis Creek ................................................................... 11030011 19 Primary Contact Recreation Little Cheyenne Creek ................................................... 11030011 7 Primary Contact Recreation Little Cow Creek ............................................................. 11030011 2 Primary Contact Recreation Lost Creek ...................................................................... 11030011 17 Secondary Contact Recreation Owl Creek ...................................................................... 11030011 18 Primary Contact Recreation Plum Creek .................................................................... 11030011 4 Secondary Contact Recreation Salt Creek ...................................................................... 11030011 21 Primary Contact Recreation Spring Creek .................................................................. 11030011 20 Secondary Contact Recreation

**Subbasin: Little Arkansas**

Beaver Creek ................................................................. 11030012 26 Primary Contact Recreation Bull Creek ....................................................................... 11030012 24 Primary Contact Recreation Dry Creek ....................................................................... 11030012 22 Secondary Contact Recreation Dry Turkey Creek ........................................................... 11030012 13 Primary Contact Recreation Emma Creek .................................................................. 11030012 6 Primary Contact Recreation Emma Creek .................................................................. 11030012 7 Primary Contact Recreation Emma Creek, West ........................................................ 11030012 8 Primary Contact Recreation Gooseberry Creek .......................................................... 11030012 17 Primary Contact Recreation Horse Creek ................................................................... 11030012 19 Primary Contact Recreation Jester Creek ................................................................... 11030012 2 Primary Contact Recreation Jester Creek, East Fork ................................................. 11030012 18 Primary Contact Recreation Kisiwa Creek .................................................................. 11030012 15 Secondary Contact Recreation Lone Tree Creek ............................................................ 11030012 20 Secondary Contact Recreation Mud Creek ...................................................................... 11030012 16 Primary Contact Recreation Running Turkey Creek ................................................... 11030012 25 Secondary Contact Recreation Salt Creek ...................................................................... 11030012 21 Primary Contact Recreation Sun Creek ...................................................................... 11030012 11 Primary Contact Recreation Turkey Creek .................................................................. 11030012 12 Secondary Contact Recreation

**Subbasin: Middle Arkansas—Slate**

Antelope Creek .............................................................. 11030013 25 Primary Contact Recreation Badger Creek ................................................................. 11030013 31 Primary Contact Recreation Beaver Creek ................................................................. 11030013 29 Primary Contact Recreation Beaver Creek ................................................................. 11030013 33 Primary Contact Recreation Big Slough ...................................................................... 11030013 11 Primary Contact Recreation Big Slough, South Fork .................................................. 11030013 35 Primary Contact Recreation Bitter Creek .................................................................... 11030013 28 Primary Contact Recreation Dry Creek ....................................................................... 11030013 15 Primary Contact Recreation Dry Creek ....................................................................... 11030013 16 Primary Contact Recreation Gypsum Creek ............................................................... 11030013 5 Primary Contact Recreation Hargis Creek .................................................................. 11030013 24 Primary Contact Recreation Lost Creek ...................................................................... 11030013 23 Primary Contact Recreation Negro Creek ................................................................... 11030013 20 Primary Contact Recreation Oak Creek ...................................................................... 11030013 26 Secondary Contact Recreation Salt Creek ...................................................................... 11030013 22 Primary Contact Recreation Spring Creek .................................................................. 11030013 19 Primary Contact Recreation Spring Creek .................................................................. 11030013 21 Primary Contact Recreation Spring Creek .................................................................. 11030013 27 Primary Contact Recreation Spring Creek .................................................................. 11030013 34 Primary Contact Recreation Spring Creek .................................................................. 11030013 37 Primary Contact Recreation Winser Creek ................................................................. 11030013 32 Primary Contact Recreation

**Subbasin: North Fork Ninnescah**

Crow Creek .................................................................... 11030014 11 Primary Contact Recreation Dooleyville Creek ........................................................... 11030014 8 Primary Contact Recreation Goose Creek .................................................................. 11030014 10 Primary Contact Recreation Ninnescah River, North Fork ......................................... 11030014 1 Primary Contact Recreation Ninnescah River, North Fork ......................................... 11030014 5 Primary Contact Recreation Ninnescah River, North Fork ......................................... 11030014 6 Primary Contact Recreation Red Rock Creek ............................................................. 11030014 12 Primary Contact Recreation Rock Creek .................................................................... 11030014 13 Primary Contact Recreation Silver Creek .................................................................... 11030014 7 Primary Contact Recreation Spring Creek .................................................................. 11030014 14 Primary Contact Recreation Wolf Creek ..................................................................... 11030014 9 Primary Contact Recreation

**Subbasin: South Fork Ninnescah**

Coon Creek .................................................................... 11030015 9 Primary Contact Recreation Coon Creek .................................................................... 11030015 17 Primary Contact Recreation Hunter Creek .................................................................. 11030015 14 Primary Contact Recreation


### 427 Environmental Protection Agency § 131.34

Stream segment name HUC8 Segment # Designated use

Mead Creek .................................................................... 11030015 10 Primary Contact Recreation Mod Creek ...................................................................... 11030015 19 Primary Contact Recreation Natrona Creek ................................................................ 11030015 K38 Primary Contact Recreation Negro Creek ................................................................... 11030015 13 Primary Contact Recreation Nester Creek .................................................................. 11030015 15 Primary Contact Recreation Ninnescah River, West Branch South Fork ................... 11030015 5 Primary Contact Recreation Painter Creek ................................................................. 11030015 7 Primary Contact Recreation Pat Creek ....................................................................... 11030015 11 Primary Contact Recreation Petyt Creek .................................................................... 11030015 12 Primary Contact Recreation Sand Creek .................................................................... 11030015 18 Primary Contact Recreation Spring Creek .................................................................. 11030015 8 Primary Contact Recreation Wild Run Creek .............................................................. 11030015 16 Primary Contact Recreation

**Subbasin: Ninnescah**

Afton Creek .................................................................... 11030016 5 Primary Contact Recreation Clearwater Creek ........................................................... 11030016 4 Primary Contact Recreation Clearwater Creek ........................................................... 11030016 7 Primary Contact Recreation Dry Creek ....................................................................... 11030016 16 Primary Contact Recreation Elm Creek ...................................................................... 11030016 10 Primary Contact Recreation Garvey Creek ................................................................. 11030016 11 Primary Contact Recreation Sand Creek .................................................................... 11030016 14 Primary Contact Recreation Silver Creek .................................................................... 11030016 12 Primary Contact Recreation Spring Creek .................................................................. 11030016 2 Primary Contact Recreation Spring Creek .................................................................. 11030016 15 Primary Contact Recreation Turtle Creek ................................................................... 11030016 13 Primary Contact Recreation

**Subbasin: Kaw Lake**

Blue Branch .................................................................... 11060001 30 Primary Contact Recreation Bullington Creek ............................................................. 11060001 28 Primary Contact Recreation Cedar Creek ................................................................... 11060001 32 Primary Contact Recreation Chilocco Creek ............................................................... 11060001 19 Primary Contact Recreation Crabb Creek ................................................................... 11060001 29 Primary Contact Recreation Ferguson Creek ............................................................. 11060001 38 Primary Contact Recreation Franklin Creek ................................................................ 11060001 35 Primary Contact Recreation Gardners Branch ............................................................ 11060001 39 Primary Contact Recreation Goose Creek .................................................................. 11060001 34 Primary Contact Recreation Myers Creek ................................................................... 11060001 24 Primary Contact Recreation Otter Creek ..................................................................... 11060001 20 Primary Contact Recreation Pebble Creek ................................................................. 11060001 26 Primary Contact Recreation Plum Creek .................................................................... 11060001 33 Primary Contact Recreation Riley Creek ..................................................................... 11060001 37 Primary Contact Recreation School Creek .................................................................. 11060001 31 Primary Contact Recreation Shellrock Creek .............................................................. 11060001 22 Primary Contact Recreation Silver Creek .................................................................... 11060001 17 Primary Contact Recreation Snake Creek .................................................................. 11060001 25 Primary Contact Recreation Spring Creek .................................................................. 11060001 21 Primary Contact Recreation Turkey Creek .................................................................. 11060001 27 Primary Contact Recreation Wagoner Creek .............................................................. 11060001 36 Primary Contact Recreation

**Subbasin: Upper Salt Fork Arkansas**

Ash Creek ...................................................................... 11060002 20 Primary Contact Recreation Big Sandy Creek ............................................................ 11060002 5 Primary Contact Recreation Cave Creek .................................................................... 11060002 28 Primary Contact Recreation Deadman Creek ............................................................. 11060002 22 Primary Contact Recreation Dog Creek ...................................................................... 11060002 29 Primary Contact Recreation Hackberry Creek ............................................................ 11060002 23 Primary Contact Recreation Indian Creek ................................................................... 11060002 9 Primary Contact Recreation Inman Creek ................................................................... 11060002 21 Primary Contact Recreation Mustang Creek ............................................................... 11060002 31 Primary Contact Recreation Nescatunga Creek, East Branch ................................... 11060002 27 Primary Contact Recreation Red Creek ...................................................................... 11060002 16 Primary Contact Recreation Spring Creek .................................................................. 11060002 24 Primary Contact Recreation Wildcat Creek ................................................................. 11060002 12 Primary Contact Recreation Yellowstone Creek ......................................................... 11060002 17 Primary Contact Recreation

**Subbasin: Medicine Lodge**

Amber Creek .................................................................. 11060003 12 Primary Contact Recreation Antelope Creek .............................................................. 11060003 22 Primary Contact Recreation Bear Creek ..................................................................... 11060003 13 Secondary Contact Recreation Bitter Creek .................................................................... 11060003 18 Secondary Contact Recreation Cedar Creek ................................................................... 11060003 20 Primary Contact Recreation


### 428 40 CFR Ch. I (7

– 1

– 08 Edition) § 131.34

Stream segment name HUC8 Segment # Designated use

Cottonwood Creek ......................................................... 11060003 16 Primary Contact Recreation Crooked Creek ............................................................... 11060003 11 Primary Contact Recreation Litle Mule Creek ............................................................. 11060003 9 Primary Contact Recreation Dry Creek ....................................................................... 11060003 21 Secondary Contact Recreation Elm Creek, East Branch South ...................................... 11060003 10 Primary Contact Recreation Elm Creek, North Branch ............................................... 11060003 4 Primary Contact Recreation Elm Creek, South Branch .............................................. 11060003 5 Primary Contact Recreation Little Bear Creek ............................................................ 11060003 19 Primary Contact Recreation Medicine Lodge River, North Branch ............................. 11060003 24 Secondary Contact Recreation Mulberry Creek ............................................................... 11060003 14 Primary Contact Recreation Otter Creek ..................................................................... 11060003 25 Secondary Contact Recreation Puckett Creek ................................................................. 11060003 15 Primary Contact Recreation Sand Creek .................................................................... 11060003 17 Primary Contact Recreation Soldier Creek ................................................................. 11060003 27 Secondary Contact Recreation Stink Creek ..................................................................... 11060003 28 Primary Contact Recreation Turkey Creek .................................................................. 11060003 7 Primary Contact Recreation Wilson Slough ................................................................ 11060003 23 Primary Contact Recreation

**Subbasin: Lower Salt Fork Arkansas**

Camp Creek ................................................................... 11060004 68 Primary Contact Recreation Cooper Creek ................................................................. 11060004 71 Primary Contact Recreation Crooked Creek ............................................................... 11060004 24 Primary Contact Recreation Little Sandy Creek .......................................................... 11060004 39 Primary Contact Recreation Little Sandy Creek, East Branch .................................... 11060004 65 Primary Contact Recreation Osage Creek .................................................................. 11060004 17 Primary Contact Recreation Plum Creek .................................................................... 11060004 70 Primary Contact Recreation Pond Creek .................................................................... 11060004 18 Primary Contact Recreation Rush Creek .................................................................... 11060004 69 Primary Contact Recreation Salty Creek ..................................................................... 11060004 40 Primary Contact Recreation Sandy Creek .................................................................. 11060004 37 Primary Contact Recreation Sandy Creek, West ........................................................ 11060004 56 Primary Contact Recreation Spring Creek .................................................................. 11060004 66 Primary Contact Recreation Unnamed Stream ........................................................... 11060004 25 Primary Contact Recreation

**Subbasin: Chikaskia**

Allen Creek ..................................................................... 11060005 40 Primary Contact Recreation Baehr Creek ................................................................... 11060005 22 Primary Contact Recreation Beaver Creek ................................................................. 11060005 28 Primary Contact Recreation Beaver Creek ................................................................. 11060005 46 Primary Contact Recreation Big Spring Creek ............................................................ 11060005 34 Primary Contact Recreation Bitter Creek .................................................................... 11060005 4 Primary Contact Recreation Bitter Creek, East ........................................................... 11060005 16 Primary Contact Recreation Blue Stem Creek ............................................................ 11060005 48 Primary Contact Recreation Chicken Creek ................................................................ 11060005 36 Primary Contact Recreation Copper Creek ................................................................. 11060005 42 Primary Contact Recreation Dry Creek ....................................................................... 11060005 17 Primary Contact Recreation Duck Creek .................................................................... 11060005 32 Primary Contact Recreation Fall Creek ....................................................................... 11060005 14 Primary Contact Recreation Fall Creek, East Branch ................................................. 11060005 27 Primary Contact Recreation Goose Creek .................................................................. 11060005 38 Primary Contact Recreation Kemp Creek ................................................................... 11060005 49 Primary Contact Recreation Long Creek ..................................................................... 11060005 529 Primary Contact Recreation Meridian Creek ............................................................... 11060005 20 Primary Contact Recreation Prairie Creek .................................................................. 11060005 512 Primary Contact Recreation Prairie Creek, East ......................................................... 11060005 516 Primary Contact Recreation Prairie Creek, West ........................................................ 11060005 527 Primary Contact Recreation Red Creek ...................................................................... 11060005 43 Primary Contact Recreation Rock Creek .................................................................... 11060005 23 Primary Contact Recreation Rodgers Branch ............................................................. 11060005 26 Primary Contact Recreation Rose Bud Creek ............................................................. 11060005 44 Primary Contact Recreation Rush Creek .................................................................... 11060005 45 Primary Contact Recreation Sand Creek .................................................................... 11060005 11 Primary Contact Recreation Sand Creek, East ........................................................... 11060005 12 Primary Contact Recreation Sandy Creek .................................................................. 11060005 30 Primary Contact Recreation Shoo Fly Creek, East ..................................................... 11060005 19 Secondary Contact Recreation Shore Creek ................................................................... 11060005 35 Primary Contact Recreation Silver Creek .................................................................... 11060005 29 Primary Contact Recreation Skunk Creek ................................................................... 11060005 39 Primary Contact Recreation Spring Branch ................................................................ 11060005 21 Primary Contact Recreation Wild Horse Creek ........................................................... 11060005 41 Primary Contact Recreation Wildcat Creek ................................................................. 11060005 24 Primary Contact Recreation


### 429 Environmental Protection Agency § 131.34

Stream segment name HUC8 Segment # Designated use

**Basin: Marais Des Cygnes Subbasin: Upper Marais Des Cygnes** 

Appanoose Creek .......................................................... 10290101 16 Primary Contact Recreation Appanoose Creek, East ................................................. 10290101 89 Primary Contact Recreation Batch Creek ................................................................... 10290101 86 Primary Contact Recreation Blue Creek ..................................................................... 10290101 81 Primary Contact Recreation Bradshaw Creek ............................................................. 10290101 75 Primary Contact Recreation Cedar Creek ................................................................... 10290101 66 Primary Contact Recreation Cherry Creek .................................................................. 10290101 74 Primary Contact Recreation Chicken Creek ................................................................ 10290101 70 Primary Contact Recreation Chicken Creek ................................................................ 10290101 93 Primary Contact Recreation Coal Creek ..................................................................... 10290101 48 Primary Contact Recreation Dry Creek ....................................................................... 10290101 57 Primary Contact Recreation Dry Creek ....................................................................... 10290101 95 Primary Contact Recreation Duck Creek .................................................................... 10290101 41 Primary Contact Recreation Eightmile Creek .............................................................. 10290101 13 Primary Contact Recreation Frog Creek ..................................................................... 10290101 42 Primary Contact Recreation Hard Fish Creek ............................................................. 10290101 47 Primary Contact Recreation Hickory Creek ................................................................. 10290101 8 Primary Contact Recreation Hill Creek ........................................................................ 10290101 71 Primary Contact Recreation Iantha Creek ................................................................... 10290101 62 Primary Contact Recreation Jersey Creek .................................................................. 10290101 76 Primary Contact Recreation Kenoma Creek ............................................................... 10290101 64 Primary Contact Recreation Little Rock Creek ............................................................ 10290101 73 Primary Contact Recreation Long Creek ..................................................................... 10290101 K36 Primary Contact Recreation Locust Creek .................................................................. 10290101 69 Primary Contact Recreation Middle Creek .................................................................. 10290101 50 Primary Contact Recreation Mosquito Creek .............................................................. 10290101 52 Primary Contact Recreation Mud Creek ...................................................................... 10290101 49 Primary Contact Recreation Mud Creek ...................................................................... 10290101 78 Primary Contact Recreation Mud Creek ...................................................................... 10290101 91 Primary Contact Recreation Mute Creek ..................................................................... 10290101 92 Primary Contact Recreation Ottawa Creek ................................................................. 10290101 K25 Primary Contact Recreation Plum Creek .................................................................... 10290101 2 Primary Contact Recreation Plum Creek .................................................................... 10290101 79 Primary Contact Recreation Popcorn Creek ............................................................... 10290101 87 Primary Contact Recreation Pottawatomie Creek, North Fork ................................... 10290101 65 Primary Contact Recreation Pottawatomie Creek, South Fork ................................... 10290101 67 Primary Contact Recreation Rock Creek .................................................................... 10290101 43 Primary Contact Recreation Rock Creek .................................................................... 10290101 97 Primary Contact Recreation Sac Branch, South Fork ................................................. 10290101 54 Secondary Contact Recreation Sac Creek ...................................................................... 10290101 60 Primary Contact Recreation Salt Creek ...................................................................... 10290101 29 Primary Contact Recreation Sand Creek .................................................................... 10290101 82 Primary Contact Recreation Smith Creek ................................................................... 10290101 77 Primary Contact Recreation Spring Creek .................................................................. 10290101 84 Primary Contact Recreation Switzler Creek ................................................................ 10290101 80 Primary Contact Recreation Tauy Creek ..................................................................... 10290101 11 Primary Contact Recreation Tauy Creek, West Fork .................................................. 10290101 K26 Primary Contact Recreation Tequa Creek .................................................................. 10290101 44 Primary Contact Recreation Tequa Creek, East Branch ............................................ 10290101 46 Primary Contact Recreation Tequa Creek, South Branch .......................................... 10290101 45 Primary Contact Recreation Thomas Creek ................................................................ 10290101 72 Secondary Contact Recreation Turkey Creek .................................................................. 10290101 4 Primary Contact Recreation Turkey Creek .................................................................. 10290101 6 Primary Contact Recreation Unnamed Stream ........................................................... 10290101 5 Primary Contact Recreation Walnut Creek ................................................................. 10290101 90 Primary Contact Recreation West Fork Eight Mile Creek ........................................... 10290101 88 Primary Contact Recreation Willow Creek .................................................................. 10290101 94 Primary Contact Recreation Wilson Creek .................................................................. 10290101 83 Primary Contact Recreation Wolf Creek ..................................................................... 10290101 96 Primary Contact Recreation

**Subbasin: Lower Marais Des Cygnes**

Buck Creek ..................................................................... 10290102 44 Primary Contact Recreation Bull Creek ....................................................................... 10290102 26 Secondary Contact Recreation Davis Creek .................................................................... 10290102 38 Primary Contact Recreation Dorsey Creek ................................................................. 10290102 22 Primary Contact Recreation Elm Branch ..................................................................... 10290102 48 Primary Contact Recreation Elm Branch ..................................................................... 10290102 53 Primary Contact Recreation Elm Creek ...................................................................... 10290102 40 Primary Contact Recreation Hushpuckney Creek ....................................................... 10290102 37 Primary Contact Recreation Jake Branch ................................................................... 10290102 54 Secondary Contact Recreation


### 430 40 CFR Ch. I (7

– 1

– 08 Edition) § 131.34

Stream segment name HUC8 Segment # Designated use

Jordan Branch ................................................................ 10290102 36 Primary Contact Recreation Little Bull Creek .............................................................. 10290102 51 Primary Contact Recreation Little Sugar Creek .......................................................... 10290102 33 Primary Contact Recreation Little Sugar Creek, North Fork ....................................... 10290102 43 Primary Contact Recreation Martin Creek ................................................................... 10290102 26 Primary Contact Recreation Middle Creek .................................................................. 10290102 13 Primary Contact Recreation Middle Creek .................................................................. 10290102 30 Primary Contact Recreation Mound Creek .................................................................. 10290102 35 Primary Contact Recreation Richland Creek ............................................................... 10290102 41 Primary Contact Recreation Rock Creek .................................................................... 10290102 27 Primary Contact Recreation Smith Branch .................................................................. 10290102 47 Primary Contact Recreation Spring Creek .................................................................. 10290102 50 Primary Contact Recreation Sugar Creek ................................................................... 10290102 42 Primary Contact Recreation Turkey Creek .................................................................. 10290102 45 Primary Contact Recreation Walnut Creek ................................................................. 10290102 14 Primary Contact Recreation Walnut Creek ................................................................. 10290102 34 Primary Contact Recreation Walnut Creek ................................................................. 10290102 52 Primary Contact Recreation Wea Creek, North .......................................................... 10290102 21 Primary Contact Recreation Wea Creek, South .......................................................... 10290102 18 Primary Contact Recreation Wea Creek, South .......................................................... 10290102 19 Primary Contact Recreation Wea Creek, South .......................................................... 10290102 20 Primary Contact Recreation

**Subbasin: Little Osage**

Clever Creek .................................................................. 10290103 7 Primary Contact Recreation Elk Creek ........................................................................ 10290103 11 Primary Contact Recreation Fish Creek ...................................................................... 10290103 8 Primary Contact Recreation Indian Creek ................................................................... 10290103 12 Primary Contact Recreation Irish Creek ...................................................................... 10290103 9 Primary Contact Recreation Laberdie Creek, East ..................................................... 10290103 13 Primary Contact Recreation Limestone Creek ............................................................ 10290103 5 Primary Contact Recreation Lost Creek ...................................................................... 10290103 10 Primary Contact Recreation Reagan Branch .............................................................. 10290103 6 Primary Contact Recreation

**Subbasin: Marmaton**

Buck Run ........................................................................ 10290104 46 Primary Contact Recreation Bunion Creek ................................................................. 10290104 39 Primary Contact Recreation Cedar Creek ................................................................... 10290104 41 Primary Contact Recreation Drywood Creek, Moores Branch .................................... 10290104 17 Primary Contact Recreation Drywood Creek, West Fork ............................................ 10290104 19 Primary Contact Recreation Elm Creek ...................................................................... 10290104 15 Secondary Contact Recreation Hinton Creek .................................................................. 10290104 38 Primary Contact Recreation Lath Branch .................................................................... 10290104 42 Primary Contact Recreation Little Mill Creek .............................................................. 10290104 34 Primary Contact Recreation Mill Creek ....................................................................... 10290104 6 Primary Contact Recreation Owl Creek ...................................................................... 10290104 45 Primary Contact Recreation Paint Creek .................................................................... 10290104 13 Primary Contact Recreation Paint Creek .................................................................... 10290104 14 Primary Contact Recreation Prong Creek ................................................................... 10290104 44 Secondary Contact Recreation Robinson Branch ............................................................ 10290104 40 Primary Contact Recreation Shiloh Creek ................................................................... 10290104 36 Primary Contact Recreation Sweet Branch ................................................................. 10290104 30 Primary Contact Recreation Tennyson Creek ............................................................. 10290104 31 Primary Contact Recreation Turkey Creek .................................................................. 10290104 33 Primary Contact Recreation Walnut Creek ................................................................. 10290104 32 Primary Contact Recreation Walnut Creek ................................................................. 10290104 47 Primary Contact Recreation Wolfpen Creek ............................................................... 10290104 37 Primary Contact Recreation Wolverine Creek ............................................................. 10290104 35 Primary Contact Recreation

**Subbasin: South Grand**

Harless Creek ................................................................ 10290108 67 Primary Contact Recreation Poney Creek .................................................................. 10290108 48 Primary Contact Recreation

**Basin: Missouri**

**Subbasin: Tarkio-Wolf**

Cold Ryan Branch .......................................................... 10240005 70 Primary Contact Recreation Coon Creek .................................................................... 10240005 71 Primary Contact Recreation Halling Creek .................................................................. 10240005 68 Primary Contact Recreation Mill Creek ....................................................................... 10240005 52 Primary Contact Recreation Rittenhouse Branch ........................................................ 10240005 69 Primary Contact Recreation Spring Creek .................................................................. 10240005 65 Primary Contact Recreation


### 431 Environmental Protection Agency § 131.34

Stream segment name HUC8 Segment # Designated use

Striker Branch ................................................................ 10240005 72 Primary Contact Recreation Wolf River, Middle Fork ................................................. 10240005 67 Primary Contact Recreation Wolf River, North Fork ................................................... 10240005 66 Primary Contact Recreation Wolf River, South Fork ................................................... 10240005 57 Primary Contact Recreation Unnamed Stream ........................................................... 10240005 55 Primary Contact Recreation

**Subbasin: South Fork Big Nemaha**

Burger Creek .................................................................. 10240007 24 Secondary Contact Recreation Deer Creek ..................................................................... 10240007 18 Primary Contact Recreation Fisher Creek ................................................................... 10240007 28 Primary Contact Recreation Illinois Creek ................................................................... 10240007 30 Primary Contact Recreation Rattlesnake Creek .......................................................... 10240007 27 Primary Contact Recreation Rock Creek .................................................................... 10240007 20 Primary Contact Recreation Tennessee Creek ........................................................... 10240007 29 Primary Contact Recreation Turkey Creek .................................................................. 10240007 4 Primary Contact Recreation Turkey Creek .................................................................. 10240007 5 Primary Contact Recreation Wildcat Creek ................................................................. 10240007 23 Primary Contact Recreation Wildcat Creek ................................................................. 10240007 22 Primary Contact Recreation Wolf Pen Creek .............................................................. 10240007 25 Primary Contact Recreation

**Subbasin: Big Nemaha**

Noharts Creek ................................................................ 10240008 42 Primary Contact Recreation Pedee Creek .................................................................. 10240008 41 Primary Contact Recreation Pony Creek .................................................................... 10240008 38 Primary Contact Recreation Roys Creek .................................................................... 10240008 40 Primary Contact Recreation

**Subbasin: Independence**

**— Sugar** 

Brush Creek ................................................................... 10240011 26 Primary Contact Recreation Deer Creek ..................................................................... 10240011 32 Primary Contact Recreation Fivemile Creek ............................................................... 10240011 35 Primary Contact Recreation Independence Creek, North Branch .............................. 10240011 29 Primary Contact Recreation Jordan Creek .................................................................. 10240011 30 Primary Contact Recreation Owl Creek ...................................................................... 10240011 33 Primary Contact Recreation Rock Creek .................................................................... 10240011 21 Primary Contact Recreation Salt Creek ...................................................................... 10240011 34 Primary Contact Recreation Smith Creek ................................................................... 10240011 28 Primary Contact Recreation Three Mile Creek ........................................................... 10240011 36 Primary Contact Recreation Walnut Creek ................................................................. 10240011 23 Primary Contact Recreation Walnut Creek ................................................................. 10240011 25 Primary Contact Recreation White Clay Creek ........................................................... 10240011 31 Primary Contact Recreation White Clay Creek ........................................................... 10240011 9031 Primary Contact Recreation Whiskey Creek ............................................................... 10240011 235 Primary Contact Recreation Whiskey Creek ............................................................... 10240011 9235 Primary Contact Recreation

**Subbasin: Lower Missouri**

**— Crooked** 

Brush Creek ................................................................... 10300101 54 Primary Contact Recreation Camp Branch ................................................................. 10300101 56 Primary Contact Recreation Coffee Creek .................................................................. 10300101 57 Primary Contact Recreation Dyke Branch ................................................................... 10300101 55 Primary Contact Recreation Indian Creek ................................................................... 10300101 32 Primary Contact Recreation Negro Creek ................................................................... 10300101 58 Primary Contact Recreation Tomahawk Creek ........................................................... 10300101 53 Primary Contact Recreation

**Basin: Neosho**

**Subbasin: Neosho Headwaters**

Allen Creek ..................................................................... 11070201 5 Primary Contact Recreation Badger Creek ................................................................. 11070201 45 Primary Contact Recreation Big John Creek .............................................................. 11070201 37 Primary Contact Recreation Bluff Creek ..................................................................... 11070201 8 Primary Contact Recreation Crooked Creek ............................................................... 11070201 35 Primary Contact Recreation Dows Creek .................................................................... 11070201 3 Primary Contact Recreation Dows Creek .................................................................... 11070201 4 Primary Contact Recreation Eagle Creek ................................................................... 11070201 25 Primary Contact Recreation Eagle Creek, South ........................................................ 11070201 47 Primary Contact Recreation East Creek ..................................................................... 11070201 39 Primary Contact Recreation Elm Creek ...................................................................... 11070201 36 Primary Contact Recreation Fourmile Creek ............................................................... 11070201 24 Primary Contact Recreation Fourmile Creek ............................................................... 11070201 48 Primary Contact Recreation Haun Creek .................................................................... 11070201 29 Primary Contact Recreation


### 432 40 CFR Ch. I (7

– 1

– 08 Edition) § 131.34

Stream segment name HUC8 Segment # Designated use

Horse Creek ................................................................... 11070201 33 Primary Contact Recreation Kahola Creek ................................................................. 11070201 43 Primary Contact Recreation Lairds Creek ................................................................... 11070201 30 Primary Contact Recreation Lanos Creek ................................................................... 11070201 21 Primary Contact Recreation Lebo Creek ..................................................................... 11070201 51 Primary Contact Recreation Munkers Creek, East Branch ......................................... 11070201 31 Primary Contact Recreation Munkers Creek, Middle Branch ..................................... 11070201 32 Primary Contact Recreation Neosho River, East Fork ................................................ 11070201 18 Primary Contact Recreation Neosho River, West Fork ............................................... 11070201 28 Primary Contact Recreation Parkers Creek ................................................................ 11070201 27 Primary Contact Recreation Plum Creek .................................................................... 11070201 50 Primary Contact Recreation Plumb Creek .................................................................. 11070201 49 Primary Contact Recreation Rock Creek .................................................................... 11070201 7 Primary Contact Recreation Rock Creek .................................................................... 11070201 9 Primary Contact Recreation Rock Creek, East Branch .............................................. 11070201 34 Primary Contact Recreation Spring Creek .................................................................. 11070201 40 Primary Contact Recreation Stillman Creek ................................................................ 11070201 44 Primary Contact Recreation Taylor Creek ................................................................... 11070201 46 Primary Contact Recreation Walker Branch ................................................................ 11070201 42 Primary Contact Recreation Wolf Creek ..................................................................... 11070201 41 Primary Contact Recreation Wrights Creek ................................................................ 11070201 38 Primary Contact Recreation

**Subbasin: Upper Cottonwood**

Antelope Creek .............................................................. 11070202 19 Primary Contact Recreation Bills Creek ...................................................................... 11070202 30 Primary Contact Recreation Bruno Creek ................................................................... 11070202 27 Primary Contact Recreation Catlin Creek ................................................................... 11070202 20 Primary Contact Recreation Clear Creek .................................................................... 11070202 5 Primary Contact Recreation Clear Creek, East Branch .............................................. 11070202 24 Primary Contact Recreation Coon Creek .................................................................... 11070202 32 Primary Contact Recreation Cottonwood River, South ............................................... 11070202 17 Primary Contact Recreation Cottonwood River, South ............................................... 11070202 18 Primary Contact Recreation Doyle Creek ................................................................... 11070202 21 Primary Contact Recreation French Creek ................................................................. 11070202 16 Primary Contact Recreation Mud Creek ...................................................................... 11070202 6 Primary Contact Recreation Perry Creek .................................................................... 11070202 23 Primary Contact Recreation Spring Branch ................................................................ 11070202 26 Primary Contact Recreation Spring Creek .................................................................. 11070202 28 Primary Contact Recreation Spring Creek .................................................................. 11070202 29 Primary Contact Recreation Stony Brook .................................................................... 11070202 25 Primary Contact Recreation Turkey Creek .................................................................. 11070202 31 Primary Contact Recreation

**Subbasin: Lower Cottonwood**

Beaver Creek ................................................................. 11070203 29 Primary Contact Recreation Bloody Creek .................................................................. 11070203 40 Primary Contact Recreation Buck Creek ..................................................................... 11070203 39 Primary Contact Recreation Buckeye Creek ............................................................... 11070203 44 Primary Contact Recreation Bull Creek ....................................................................... 11070203 26 Primary Contact Recreation Camp Creek ................................................................... 11070203 14 Primary Contact Recreation Coal Creek ..................................................................... 11070203 43 Primary Contact Recreation Collett Creek .................................................................. 11070203 21 Primary Contact Recreation Corn Creek ..................................................................... 11070203 47 Primary Contact Recreation Coyne Branch ................................................................ 11070203 33 Primary Contact Recreation Crocker Creek ................................................................ 11070203 46 Primary Contact Recreation Dodds Creek .................................................................. 11070203 15 Primary Contact Recreation Fox Creek ....................................................................... 11070203 19 Primary Contact Recreation French Creek ................................................................. 11070203 32 Primary Contact Recreation Gannon Creek ................................................................ 11070203 24 Primary Contact Recreation Gould Creek ................................................................... 11070203 36 Primary Contact Recreation Holmes Creek ................................................................ 11070203 35 Primary Contact Recreation Jacob Creek ................................................................... 11070203 28 Primary Contact Recreation Kirk Creek ...................................................................... 11070203 48 Primary Contact Recreation Little Cedar Creek .......................................................... 11070203 11 Primary Contact Recreation Little Cedar Creek .......................................................... 11070203 45 Primary Contact Recreation Middle Creek .................................................................. 11070203 5 Primary Contact Recreation Mile-and-a-half Creek ..................................................... 11070203 13 Secondary Contact Recreation Moon Creek .................................................................... 11070203 31 Primary Contact Recreation Mulvane Creek ............................................................... 11070203 22 Primary Contact Recreation Peyton Creek ................................................................. 11070203 25 Primary Contact Recreation Phenis Creek .................................................................. 11070203 30 Primary Contact Recreation Pickett Creek .................................................................. 11070203 18 Primary Contact Recreation Prather Creek ................................................................. 11070203 23 Primary Contact Recreation


### 433 Environmental Protection Agency § 131.34

Stream segment name HUC8 Segment # Designated use

Rock Creek .................................................................... 11070203 37 Primary Contact Recreation Schaffer Creek ............................................................... 11070203 17 Primary Contact Recreation School Creek .................................................................. 11070203 16 Primary Contact Recreation Sharpes Creek ............................................................... 11070203 38 Primary Contact Recreation Silver Creek .................................................................... 11070203 34 Primary Contact Recreation Spring Creek .................................................................. 11070203 41 Primary Contact Recreation Stout Run ....................................................................... 11070203 27 Primary Contact Recreation Stribby Creek ................................................................. 11070203 20 Primary Contact Recreation

**Subbasin: Upper Neosho**

Badger Creek ................................................................. 11070204 42 Primary Contact Recreation Big Creek, North ............................................................ 11070204 16 Primary Contact Recreation Big Creek, South ............................................................ 11070204 17 Primary Contact Recreation Bloody Run ..................................................................... 11070204 25 Primary Contact Recreation Carlyle Creek ................................................................. 11070204 47 Primary Contact Recreation Charles Branch .............................................................. 11070204 27 Primary Contact Recreation Cherry Creek .................................................................. 11070204 20 Primary Contact Recreation Coal Creek ..................................................................... 11070204 4 Primary Contact Recreation Cottonwood Creek ......................................................... 11070204 48 Primary Contact Recreation Crooked Creek ............................................................... 11070204 44 Primary Contact Recreation Draw Creek .................................................................... 11070204 34 Primary Contact Recreation Goose Creek .................................................................. 11070204 29 Primary Contact Recreation Long Creek ..................................................................... 11070204 12 Primary Contact Recreation Martin Creek ................................................................... 11070204 49 Primary Contact Recreation Mud Creek ...................................................................... 11070204 26 Primary Contact Recreation Mud Creek ...................................................................... 11070204 31 Primary Contact Recreation Onion Creek ................................................................... 11070204 24 Primary Contact Recreation Owl Creek ...................................................................... 11070204 19 Primary Contact Recreation Owl Creek ...................................................................... 11070204 21 Primary Contact Recreation Plum Creek .................................................................... 11070204 22 Primary Contact Recreation Rock Creek .................................................................... 11070204 7 Primary Contact Recreation Rock Creek .................................................................... 11070204 23 Primary Contact Recreation Rock Creek .................................................................... 11070204 15 Primary Contact Recreation School Creek .................................................................. 11070204 38 Primary Contact Recreation Scott Creek .................................................................... 11070204 40 Primary Contact Recreation Slack Creek .................................................................... 11070204 30 Primary Contact Recreation Spring Creek .................................................................. 11070204 46 Primary Contact Recreation Sutton Creek .................................................................. 11070204 35 Primary Contact Recreation Turkey Branch ................................................................ 11070204 28 Primary Contact Recreation Turkey Creek .................................................................. 11070204 18 Primary Contact Recreation Turkey Creek .................................................................. 11070204 32 Primary Contact Recreation Twiss Creek ................................................................... 11070204 45 Primary Contact Recreation Varvel Creek .................................................................. 11070204 43 Primary Contact Recreation Village Creek .................................................................. 11070204 33 Primary Contact Recreation Wolf Creek ..................................................................... 11070204 37 Primary Contact Recreation

**Subbasin: Middle Neosho**

Bachelor Creek .............................................................. 11070205 40 Primary Contact Recreation Canville Creek ................................................................ 11070205 16 Primary Contact Recreation Center Creek .................................................................. 11070205 25 Primary Contact Recreation Cherry Creek .................................................................. 11070205 4 Primary Contact Recreation Deer Creek ..................................................................... 11070205 27 Primary Contact Recreation Denny Branch ................................................................ 11070205 31 Primary Contact Recreation Elk Creek ........................................................................ 11070205 19 Primary Contact Recreation Elm Creek ...................................................................... 11070205 43 Primary Contact Recreation Flat Rock Creek ............................................................. 11070205 12 Primary Contact Recreation Flat Rock Creek ............................................................. 11070205 14 Primary Contact Recreation Fourmile Creek ............................................................... 11070205 49 Primary Contact Recreation Grindstone Creek ........................................................... 11070205 42 Primary Contact Recreation Hickory Creek ................................................................. 11070205 10 Primary Contact Recreation Lake Creek ..................................................................... 11070205 24 Primary Contact Recreation Lightning Creek .............................................................. 11070205 6 Primary Contact Recreation Lightning Creek .............................................................. 11070205 8 Primary Contact Recreation Limestone Creek ............................................................ 11070205 7 Primary Contact Recreation Little Cherry Creek ......................................................... 11070205 32 Primary Contact Recreation Little Elk Creek ............................................................... 11070205 47 Primary Contact Recreation Little Fly Creek ............................................................... 11070205 26 Secondary Contact Recreation Little Labette Creek ........................................................ 11070205 23 Primary Contact Recreation Little Walnut Creek ......................................................... 11070205 46 Primary Contact Recreation Litup Creek ..................................................................... 11070205 36 Primary Contact Recreation Mulberry Creek ............................................................... 11070205 35 Primary Contact Recreation Murphy Creek ................................................................. 11070205 41 Primary Contact Recreation


### 434 40 CFR Ch. I (7

– 1

– 08 Edition) § 131.34

Stream segment name HUC8 Segment # Designated use

Ogeese Creek ................................................................ 11070205 38 Primary Contact Recreation Pecan Creek .................................................................. 11070205 45 Primary Contact Recreation Plum Creek .................................................................... 11070205 34 Primary Contact Recreation Rock Creek .................................................................... 11070205 48 Primary Contact Recreation Spring Creek .................................................................. 11070205 30 Primary Contact Recreation Stink Branch ................................................................... 11070205 37 Primary Contact Recreation Thunderbolt Creek ......................................................... 11070205 44 Primary Contact Recreation Tolen Creek .................................................................... 11070205 39 Primary Contact Recreation Town Creek .................................................................... 11070205 28 Primary Contact Recreation Turkey Creek .................................................................. 11070205 29 Primary Contact Recreation Walnut Creek ................................................................. 11070205 13 Primary Contact Recreation Wolf Creek ..................................................................... 11070205 33 Primary Contact Recreation

**Subbasin: Lake O ’**  **the Cherokees**

Fourmile Creek ............................................................... 11070206 18 Primary Contact Recreation Tar Creek ....................................................................... 11070206 19 Primary Contact Recreation

**Subbasin: Spring**

Little Shawnee Creek ..................................................... 11070207 22 Primary Contact Recreation Long Branch ................................................................... 11070207 21 Primary Contact Recreation Shawnee Creek .............................................................. 11070207 17 Primary Contact Recreation Taylor Branch ................................................................. 11070207 25 Primary Contact Recreation Willow Creek .................................................................. 11070207 20 Primary Contact Recreation

**Basin: Smoky Hill/Saline Subbasin: Middle Smoky Hill** 

Ash Creek ...................................................................... 10260006 37 Primary Contact Recreation Big Timber Creek ........................................................... 10260006 24 Primary Contact Recreation Big Timber Creek ........................................................... 10260006 25 Primary Contact Recreation Big Timber Creek ........................................................... 10260006 27 Primary Contact Recreation Blood Creek ................................................................... 10260006 35 Secondary Contact Recreation Buck Creek ..................................................................... 10260006 29 Primary Contact Recreation Buffalo Creek ................................................................. 10260006 6 Primary Contact Recreation Clear Creek .................................................................... 10260006 42 Primary Contact Recreation Coal Creek ..................................................................... 10260006 34 Primary Contact Recreation Cow Creek ..................................................................... 10260006 38 Primary Contact Recreation Eagle Creek ................................................................... 10260006 30 Primary Contact Recreation Fossil Creek ................................................................... 10260006 13 Primary Contact Recreation Goose Creek .................................................................. 10260006 39 Primary Contact Recreation Landon Creek ................................................................. 10260006 31 Primary Contact Recreation Loss Creek ..................................................................... 10260006 44 Primary Contact Recreation Mud Creek ...................................................................... 10260006 47 Primary Contact Recreation Oxide Creek ................................................................... 10260006 45 Primary Contact Recreation Sellens Creek ................................................................. 10260006 32 Primary Contact Recreation Shelter Creek ................................................................. 10260006 43 Primary Contact Recreation Skunk Creek ................................................................... 10260006 48 Primary Contact Recreation Spring Creek .................................................................. 10260006 41 Primary Contact Recreation Timber Creek ................................................................. 10260006 26 Primary Contact Recreation Turkey Creek .................................................................. 10260006 46 Primary Contact Recreation Unnamed Stream ........................................................... 10260006 20 Primary Contact Recreation Unnamed Stream ........................................................... 10260006 23 Primary Contact Recreation Unnamed Stream ........................................................... 10260006 28 Primary Contact Recreation Wilson Creek .................................................................. 10260006 40 Primary Contact Recreation Wolf Creek ..................................................................... 10260006 36 Primary Contact Recreation

**Subbasin: Lower Smoky Hill**

Basket Creek .................................................................. 10260008 40 Primary Contact Recreation Battle Creek ................................................................... 10260008 23 Primary Contact Recreation Carry Creek .................................................................... 10260008 32 Primary Contact Recreation Carry Creek .................................................................... 10260008 35 Primary Contact Recreation Chapman Creek, West ................................................... 10260008 5 Primary Contact Recreation Dry Creek ....................................................................... 10260008 36 Primary Contact Recreation Dry Creek, East .............................................................. 10260008 43 Primary Contact Recreation Hobbs Creek .................................................................. 10260008 48 Primary Contact Recreation Holland Creek ................................................................ 10260008 25 Primary Contact Recreation Holland Creek, East ....................................................... 10260008 27 Primary Contact Recreation Holland Creek, West ...................................................... 10260008 26 Primary Contact Recreation Kentucky Creek .............................................................. 10260008 17 Secondary Contact Recreation Kentucky Creek, West ................................................... 10260008 54 Primary Contact Recreation Lone Tree Creek ............................................................ 10260008 41 Primary Contact Recreation


### 435 Environmental Protection Agency § 131.34

Stream segment name HUC8 Segment # Designated use

Lyon Creek, West Branch .............................................. 10260008 34 Primary Contact Recreation Mcallister Creek ............................................................. 10260008 49 Primary Contact Recreation Middle Branch ................................................................ 10260008 58 Primary Contact Recreation Mud Creek ...................................................................... 10260008 8 Primary Contact Recreation Otter Creek ..................................................................... 10260008 42 Primary Contact Recreation Paint Creek .................................................................... 10260008 52 Secondary Contact Recreation Pewee Creek .................................................................. 10260008 56 Primary Contact Recreation Sand Creek .................................................................... 10260008 46 Primary Contact Recreation Sharps Creek ................................................................. 10260008 16 Secondary Contact Recreation Spring Creek .................................................................. 10260008 45 Primary Contact Recreation Stag Creek ..................................................................... 10260008 19 Primary Contact Recreation Turkey Creek .................................................................. 10260008 28 Primary Contact Recreation Turkey Creek .................................................................. 10260008 30 Primary Contact Recreation Turkey Creek, East ........................................................ 10260008 50 Primary Contact Recreation Turkey Creek, West Branch ........................................... 10260008 29 Primary Contact Recreation Unnamed Stream ........................................................... 10260008 K3 Primary Contact Recreation Unnamed Stream ........................................................... 10260008 K4 Primary Contact Recreation Unnamed Stream ........................................................... 10260008 K24 Primary Contact Recreation Wiley Creek .................................................................... 10260008 47 Primary Contact Recreation

**Subbasin: Upper Saline**

Cedar Creek ................................................................... 10260009 30 Secondary Contact Recreation Chalk Creek ................................................................... 10260009 26 Primary Contact Recreation Coyote Creek ................................................................. 10260009 23 Primary Contact Recreation Eagle Creek ................................................................... 10260009 6 Primary Contact Recreation Happy Creek .................................................................. 10260009 25 Primary Contact Recreation Paradise Creek .............................................................. 10260009 5 Primary Contact Recreation Salt Creek ...................................................................... 10260009 20 Primary Contact Recreation Spring Creek, East ......................................................... 10260009 10 Primary Contact Recreation Sweetwater Creek .......................................................... 10260009 29 Primary Contact Recreation Trego Creek ................................................................... 10260009 19 Primary Contact Recreation Unnamed Stream ........................................................... 10260009 13 Primary Contact Recreation Wild Horse Creek ........................................................... 10260009 27 Primary Contact Recreation

**Subbasin: Lower Saline**

Bacon Creek .................................................................. 10260010 7 Primary Contact Recreation Blue Stem Creek ............................................................ 10260010 33 Primary Contact Recreation Coon Creek .................................................................... 10260010 31 Primary Contact Recreation Dry Creek ....................................................................... 10260010 29 Secondary Contact Recreation Eff Creek ........................................................................ 10260010 23 Primary Contact Recreation Elkhorn Creek ................................................................ 10260010 17 Primary Contact Recreation Elkhorn Creek, West ...................................................... 10260010 38 Primary Contact Recreation Fourmile Creek ............................................................... 10260010 30 Primary Contact Recreation Lost Creek ...................................................................... 10260010 34 Secondary Contact Recreation Owl Creek ...................................................................... 10260010 18 Primary Contact Recreation Owl Creek ...................................................................... 10260010 39 Primary Contact Recreation Ralston Creek ................................................................ 10260010 28 Primary Contact Recreation Shaw Creek .................................................................... 10260010 41 Primary Contact Recreation Spillman Creek ............................................................... 10260010 6 Primary Contact Recreation Spillman Creek, North Branch ....................................... 10260010 8 Primary Contact Recreation Spring Creek .................................................................. 10260010 16 Primary Contact Recreation Spring Creek .................................................................. 10260010 19 Primary Contact Recreation Spring Creek .................................................................. 10260010 20 Primary Contact Recreation Spring Creek .................................................................. 10260010 24 Primary Contact Recreation Spring Creek .................................................................. 10260010 26 Primary Contact Recreation Spring Creek .................................................................. 10260010 27 Primary Contact Recreation Table Rock Creek .......................................................... 10260010 40 Primary Contact Recreation Trail Creek ...................................................................... 10260010 32 Secondary Contact Recreation Twelvemile Creek ........................................................... 10260010 36 Primary Contact Recreation Twin Creek, West ........................................................... 10260010 37 Secondary Contact Recreation West Spring Creek ......................................................... 10260010 25 Primary Contact Recreation Wolf Creek ..................................................................... 10260010 10 Primary Contact Recreation Wolf Creek, East Fork .................................................... 10260010 11 Primary Contact Recreation Wolf Creek, West Fork ................................................... 10260010 12 Primary Contact Recreation Yauger Creek ................................................................. 10260010 35 Primary Contact Recreation

**Basin: Solomon Subbasin: Upper North Fork Solomon** 

Ash Creek ...................................................................... 10260011 24 Primary Contact Recreation Beaver Creek ................................................................. 10260011 23 Primary Contact Recreation Big Timber Creek ........................................................... 10260011 8 Primary Contact Recreation


### 436 40 CFR Ch. I (7

– 1

– 08 Edition) § 131.34

Stream segment name HUC8 Segment # Designated use

Bow Creek ...................................................................... 10260011 15 Primary Contact Recreation Cactus Creek ................................................................. 10260011 28 Primary Contact Recreation Crooked Creek ............................................................... 10260011 6 Primary Contact Recreation Elk Creek ........................................................................ 10260011 12 Primary Contact Recreation Elk Creek, East .............................................................. 10260011 25 Primary Contact Recreation Game Creek ................................................................... 10260011 10 Primary Contact Recreation Game Creek ................................................................... 10260011 27 Primary Contact Recreation Lost Creek ...................................................................... 10260011 20 Primary Contact Recreation Sand Creek .................................................................... 10260011 26 Primary Contact Recreation Scull Creek ..................................................................... 10260011 21 Primary Contact Recreation Spring Creek .................................................................. 10260011 19 Primary Contact Recreation Wolf Creek ..................................................................... 10260011 22 Primary Contact Recreation

**Subbasin: Lower North Fork Solomon**

Beaver Creek ................................................................. 10260012 10 Primary Contact Recreation Beaver Creek, East Branch ........................................... 10260012 11 Primary Contact Recreation Beaver Creek, Middle .................................................... 10260012 12 Primary Contact Recreation Beaver Creek, Middle .................................................... 10260012 13 Primary Contact Recreation Beaver Creek, West ....................................................... 10260012 14 Secondary Contact Recreation Big Creek ....................................................................... 10260012 26 Primary Contact Recreation Boughton Creek ............................................................. 10260012 34 Primary Contact Recreation Buck Creek ..................................................................... 10260012 43 Secondary Contact Recreation Cedar Creek ................................................................... 10260012 16 Primary Contact Recreation Cedar Creek ................................................................... 10260012 18 Primary Contact Recreation Cedar Creek, East ......................................................... 10260012 17 Primary Contact Recreation Cedar Creek, East Middle .............................................. 10260012 37 Primary Contact Recreation Cedar Creek, Middle ...................................................... 10260012 19 Secondary Contact Recreation Deer Creek ..................................................................... 10260012 23 Primary Contact Recreation Deer Creek ..................................................................... 10260012 25 Primary Contact Recreation Deer Creek ..................................................................... 10260012 27 Primary Contact Recreation Deer Creek ..................................................................... 10260012 29 Primary Contact Recreation Deer Creek ..................................................................... 10260012 31 Primary Contact Recreation Dry Creek ....................................................................... 10260012 42 Primary Contact Recreation Glen Rock Creek ............................................................ 10260012 41 Primary Contact Recreation Lawrence Creek ............................................................. 10260012 44 Primary Contact Recreation Lindley Creek ................................................................. 10260012 45 Primary Contact Recreation Little Oak Creek ............................................................. 10260012 3 Primary Contact Recreation Medicine Creek .............................................................. 10260012 33 Primary Contact Recreation Oak Creek ...................................................................... 10260012 2 Primary Contact Recreation Oak Creek ...................................................................... 10260012 4 Primary Contact Recreation Oak Creek, East ............................................................. 10260012 40 Primary Contact Recreation Oak Creek, West ............................................................ 10260012 39 Secondary Contact Recreation Plotner Creek ................................................................. 10260012 30 Primary Contact Recreation Plum Creek .................................................................... 10260012 20 Primary Contact Recreation Spring Creek .................................................................. 10260012 8 Secondary Contact Recreation Spring Creek .................................................................. 10260012 28 Secondary Contact Recreation Starvation Creek ............................................................ 10260012 38 Primary Contact Recreation Turner Creek .................................................................. 10260012 24 Primary Contact Recreation

**Subbasin: Upper South Fork Solomon**

Spring Creek .................................................................. 10260013 5 Primary Contact Recreation

**Subbasin: Lower South Fork Solomon**

Ash Creek ...................................................................... 10260014 22 Primary Contact Recreation Boxelder Creek .............................................................. 10260014 14 Primary Contact Recreation Carr Creek ...................................................................... 10260014 21 Primary Contact Recreation Covert Creek .................................................................. 10260014 19 Primary Contact Recreation Crooked Creek ............................................................... 10260014 27 Primary Contact Recreation Dibble Creek .................................................................. 10260014 23 Primary Contact Recreation Elm Creek ...................................................................... 10260014 15 Primary Contact Recreation Jim Creek ....................................................................... 10260014 25 Primary Contact Recreation Kill Creek ........................................................................ 10260014 18 Primary Contact Recreation Kill Creek, East .............................................................. 10260014 28 Primary Contact Recreation Lost Creek ...................................................................... 10260014 13 Primary Contact Recreation Lucky Creek ................................................................... 10260014 26 Primary Contact Recreation Medicine Creek .............................................................. 10260014 16 Primary Contact Recreation Medicine Creek .............................................................. 10260014 17 Primary Contact Recreation Robbers Roost Creek .................................................... 10260014 24 Primary Contact Recreation Twin Creek ..................................................................... 10260014 20 Primary Contact Recreation Twin Creek, East ............................................................ 10260014 29 Primary Contact Recreation


### 437 Environmental Protection Agency § 131.34

Stream segment name HUC8 Segment # Designated use

**Subbasin: Solomon River**

Cow Creek ..................................................................... 10260015 28 Primary Contact Recreation Fifth Creek ...................................................................... 10260015 45 Secondary Contact Recreation Granite Creek ................................................................. 10260015 24 Secondary Contact Recreation Leban Creek ................................................................... 10260015 41 Secondary Contact Recreation Mill Creek ....................................................................... 10260015 38 Secondary Contact Recreation Mulberry Creek ............................................................... 10260015 36 Secondary Contact Recreation Pipe Creek ..................................................................... 10260015 9 Primary Contact Recreation Walnut Creek ................................................................. 10260015 26 Secondary Contact Recreation

**Basin: Upper Arkansas**

**Subbasin: Buckner**

Buckner Creek, South Fork ........................................... 11030006 6 Primary Contact Recreation Duck Creek .................................................................... 11030006 8 Secondary Contact Recreation Elm Creek ...................................................................... 11030006 5 Primary Contact Recreation Saw Log Creek .............................................................. 11030006 3 Primary Contact Recreation Saw Log Creek .............................................................. 11030006 4 Secondary Contact Recreation

**Subbasin: Lower Walnut Creek**

Alexander Dry Creek ...................................................... 11030008 7 Secondary Contact Recreation Bazine Creek .................................................................. 11030008 9 Secondary Contact Recreation Boot Creek ..................................................................... 11030008 15 Secondary Contact Recreation Dry Creek ....................................................................... 11030008 14 Secondary Contact Recreation Dry Walnut Creek ........................................................... 11030008 13 Secondary Contact Recreation Otter Creek ..................................................................... 11030008 12 Primary Contact Recreation Sand Creek .................................................................... 11030008 3 Secondary Contact Recreation Sandy Creek .................................................................. 11030008 11 Secondary Contact Recreation Walnut Creek ................................................................. 11030008 1 Primary Contact Recreation Walnut Creek ................................................................. 11030008 2 Primary Contact Recreation Walnut Creek ................................................................. 11030008 4 Primary Contact Recreation

**Basin: Upper Republican Subbasin: South Fork Republican** 

Big Timber Creek ........................................................... 10250003 61 Secondary Contact Recreation

**Subbasin: Beaver**

Beaver Creek ................................................................. 10250014 2 Secondary Contact Recreation

**Basin: Verdigris Subbasin: Upper Verdigris** 

Bachelor Creek .............................................................. 11070101 21 Primary Contact Recreation Bernard Creek ................................................................ 11070101 24 Secondary Contact Recreation Big Cedar Creek ............................................................ 11070101 39 Primary Contact Recreation Brazil Creek .................................................................... 11070101 31 Primary Contact Recreation Buffalo Creek ................................................................. 11070101 2 Primary Contact Recreation Buffalo Creek, West ....................................................... 11070101 34 Primary Contact Recreation Cedar Creek ................................................................... 11070101 32 Primary Contact Recreation Chetopa Creek ............................................................... 11070101 22 Primary Contact Recreation Crooked Creek ............................................................... 11070101 38 Primary Contact Recreation Dry Creek ....................................................................... 11070101 27 Primary Contact Recreation Elder Branch .................................................................. 11070101 37 Primary Contact Recreation Fancy Creek ................................................................... 11070101 28 Primary Contact Recreation Greenhall Creek ............................................................. 11070101 26 Primary Contact Recreation Holderman Creek ........................................................... 11070101 47 Primary Contact Recreation Homer Creek .................................................................. 11070101 20 Primary Contact Recreation Kelly Branch ................................................................... 11070101 42 Primary Contact Recreation Kuntz Branch .................................................................. 11070101 29 Primary Contact Recreation Little Sandy Creek .......................................................... 11070101 33 Primary Contact Recreation Long Creek ..................................................................... 11070101 45 Primary Contact Recreation Miller Creek .................................................................... 11070101 30 Primary Contact Recreation Moon Branch .................................................................. 11070101 43 Primary Contact Recreation Onion Creek ................................................................... 11070101 23 Primary Contact Recreation Rock Creek .................................................................... 11070101 14 Primary Contact Recreation Ross Branch ................................................................... 11070101 35 Primary Contact Recreation Sandy Creek .................................................................. 11070101 4 Primary Contact Recreation Shaw Creek .................................................................... 11070101 40 Primary Contact Recreation Slate Creek .................................................................... 11070101 25 Primary Contact Recreation Snake Creek .................................................................. 11070101 36 Primary Contact Recreation


### 438 40 CFR Ch. I (7

– 1

– 08 Edition) § 131.34

Stream segment name HUC8 Segment # Designated use

Tate Branch Creek ......................................................... 11070101 44 Primary Contact Recreation Van Horn Creek ............................................................. 11070101 46 Primary Contact Recreation Verdigris River, Bernard Branch .................................... 11070101 16 Primary Contact Recreation Verdigris River, North Branch ........................................ 11070101 13 Primary Contact Recreation Verdigris River, North Branch ........................................ 11070101 15 Primary Contact Recreation Walnut Creek ................................................................. 11070101 19 Primary Contact Recreation West Creek .................................................................... 11070101 17 Primary Contact Recreation Wolf Creek ..................................................................... 11070101 41 Primary Contact Recreation

**Subbasin: Fall**

Battle Creek ................................................................... 11070102 18 Primary Contact Recreation Burnt Creek .................................................................... 11070102 24 Primary Contact Recreation Clear Creek .................................................................... 11070102 37 Primary Contact Recreation Coon Creek .................................................................... 11070102 25 Primary Contact Recreation Coon Creek .................................................................... 11070102 36 Primary Contact Recreation Crain Creek .................................................................... 11070102 32 Primary Contact Recreation Honey Creek .................................................................. 11070102 26 Primary Contact Recreation Indian Creek ................................................................... 11070102 15 Primary Contact Recreation Ivanpah Creek ................................................................ 11070102 19 Primary Contact Recreation Kitty Creek ...................................................................... 11070102 27 Primary Contact Recreation Little Indian Creek .......................................................... 11070102 34 Primary Contact Recreation Little Salt Creek .............................................................. 11070102 35 Primary Contact Recreation Oleson Creek ................................................................. 11070102 21 Primary Contact Recreation Otis Creek ...................................................................... 11070102 20 Primary Contact Recreation Plum Creek .................................................................... 11070102 30 Primary Contact Recreation Rainbow Creek, East ..................................................... 11070102 17 Primary Contact Recreation Salt Creek ...................................................................... 11070102 14 Primary Contact Recreation Salt Creek ...................................................................... 11070102 38 Primary Contact Recreation Silver Creek .................................................................... 11070102 33 Primary Contact Recreation Snake Creek .................................................................. 11070102 31 Primary Contact Recreation Spring Creek .................................................................. 11070102 12 Primary Contact Recreation Swing Creek ................................................................... 11070102 989 Primary Contact Recreation Tadpole Creek ................................................................ 11070102 29 Primary Contact Recreation Watson Branch ............................................................... 11070102 23 Primary Contact Recreation

**Subbasin: Middle Verdigris**

Big Creek ....................................................................... 11070103 21 Primary Contact Recreation Biscuit Creek .................................................................. 11070103 53 Primary Contact Recreation Bluff Run ........................................................................ 11070103 54 Primary Contact Recreation Choteau Creek ............................................................... 11070103 63 Primary Contact Recreation Claymore Creek ............................................................. 11070103 50 Primary Contact Recreation Deadman Creek ............................................................. 11070103 57 Primary Contact Recreation Deer Creek ..................................................................... 11070103 51 Primary Contact Recreation Drum Creek .................................................................... 11070103 34 Primary Contact Recreation Dry Creek ....................................................................... 11070103 37 Primary Contact Recreation Fawn Creek .................................................................... 11070103 56 Primary Contact Recreation Mud Creek ...................................................................... 11070103 59 Primary Contact Recreation Onion Creek ................................................................... 11070103 39 Primary Contact Recreation Potato Creek .................................................................. 11070103 31 Primary Contact Recreation Prior Creek ..................................................................... 11070103 62 Primary Contact Recreation Pumpkin Creek ............................................................... 11070103 28 Primary Contact Recreation Richland Creek ............................................................... 11070103 49 Primary Contact Recreation Rock Creek .................................................................... 11070103 58 Primary Contact Recreation Rock Creek .................................................................... 11070103 61 Primary Contact Recreation Snow Creek .................................................................... 11070103 25 Primary Contact Recreation Spring Creek .................................................................. 11070103 55 Primary Contact Recreation Sycamore Creek ............................................................ 11070103 52 Primary Contact Recreation Wildcat Creek ................................................................. 11070103 60 Primary Contact Recreation

**Subbasin: Elk**

Bachelor Creek .............................................................. 11070104 25 Primary Contact Recreation Bloody Run ..................................................................... 11070104 26 Primary Contact Recreation Bull Creek ....................................................................... 11070104 33 Primary Contact Recreation Card Creek ..................................................................... 11070104 19 Primary Contact Recreation Chetopa Creek ............................................................... 11070104 18 Primary Contact Recreation Clear Creek .................................................................... 11070104 30 Primary Contact Recreation Clear Creek .................................................................... 11070104 32 Primary Contact Recreation Coffey Branch ................................................................ 11070104 20 Primary Contact Recreation Duck Creek .................................................................... 11070104 3 Primary Contact Recreation Elk River, Mound Branch ............................................... 11070104 15 Primary Contact Recreation Elk River, South Branch ................................................. 11070104 38 Primary Contact Recreation


### 439 Environmental Protection Agency § 131.34

Stream segment name HUC8 Segment # Designated use

Elk River, Rowe Branch ................................................. 11070104 39 Primary Contact Recreation Elm Branch ..................................................................... 11070104 23 Primary Contact Recreation Hickory Creek ................................................................. 11070104 28 Primary Contact Recreation Hitchen Creek ................................................................ 11070104 7 Primary Contact Recreation Hitchen Creek, East ....................................................... 11070104 35 Primary Contact Recreation Little Duck Creek ............................................................ 11070104 24 Primary Contact Recreation Little Hitchen Creek ........................................................ 11070104 37 Primary Contact Recreation Painterhood Creek ......................................................... 11070104 5 Primary Contact Recreation Painterhood Creek, East ................................................ 11070104 36 Primary Contact Recreation Pan Creek ...................................................................... 11070104 27 Primary Contact Recreation Pawpaw Creek ............................................................... 11070104 11 Primary Contact Recreation Racket Creek ................................................................. 11070104 21 Primary Contact Recreation Rock Creek .................................................................... 11070104 13 Primary Contact Recreation Salt Creek ...................................................................... 11070104 17 Primary Contact Recreation Salt Creek, South ........................................................... 11070104 29 Primary Contact Recreation Skull Creek ..................................................................... 11070104 31 Primary Contact Recreation Snake Creek .................................................................. 11070104 34 Primary Contact Recreation Sycamore Creek ............................................................ 11070104 22 Primary Contact Recreation Wildcat Creek ................................................................. 11070104 16 Primary Contact Recreation

**Subbasin: Caney**

Bachelor Creek .............................................................. 11070106 47 Primary Contact Recreation Bee Creek ...................................................................... 11070106 9 Primary Contact Recreation California Creek ............................................................. 11070106 48 Primary Contact Recreation Caney Creek .................................................................. 11070106 12 Primary Contact Recreation Caney River, East Fork .................................................. 11070106 52 Primary Contact Recreation Caney Creek, North ....................................................... 11070106 11 Primary Contact Recreation Cedar Creek ................................................................... 11070106 30 Primary Contact Recreation Cedar Creek ................................................................... 11070106 32 Primary Contact Recreation Cheyenne Creek ............................................................ 11070106 40 Primary Contact Recreation Coon Creek .................................................................... 11070106 36 Primary Contact Recreation Corum Creek .................................................................. 11070106 51 Primary Contact Recreation Cotton Creek .................................................................. 11070106 38 Primary Contact Recreation Cotton Creek, North Fork ............................................... 11070106 37 Primary Contact Recreation Dry Creek ....................................................................... 11070106 29 Primary Contact Recreation Fly Creek ........................................................................ 11070106 46 Primary Contact Recreation Illinois Creek ................................................................... 11070106 39 Primary Contact Recreation Jim Creek ....................................................................... 11070106 49 Primary Contact Recreation Lake Creek ..................................................................... 11070106 34 Primary Contact Recreation Otter Creek ..................................................................... 11070106 33 Primary Contact Recreation Pool Creek ..................................................................... 11070106 43 Primary Contact Recreation Possum Trot Creek ........................................................ 11070106 74 Primary Contact Recreation Rock Creek .................................................................... 11070106 28 Primary Contact Recreation Spring Creek .................................................................. 11070106 44 Primary Contact Recreation Spring Creek .................................................................. 11070106 53 Primary Contact Recreation Squaw Creek .................................................................. 11070106 42 Primary Contact Recreation Sycamore Creek ............................................................ 11070106 31 Primary Contact Recreation Turkey Creek .................................................................. 11070106 45 Primary Contact Recreation Union Creek ................................................................... 11070106 41 Primary Contact Recreation Wolf Creek ..................................................................... 11070106 35 Primary Contact Recreation Wolf Creek ..................................................................... 11070106 50 Primary Contact Recreation

**Basin: Walnut Subbasin: Upper Walnut River** 

Badger Creek ................................................................. 11030017 36 Primary Contact Recreation Bemis Creek ................................................................... 11030017 8 Primary Contact Recreation Cole Creek ..................................................................... 11030017 15 Primary Contact Recreation Constant Creek .............................................................. 11030017 41 Primary Contact Recreation Dry Creek ....................................................................... 11030017 27 Primary Contact Recreation Dry Creek ....................................................................... 11030017 32 Primary Contact Recreation Durechen Creek ............................................................. 11030017 12 Primary Contact Recreation Elm Creek ...................................................................... 11030017 43 Primary Contact Recreation Fourmile Creek ............................................................... 11030017 20 Primary Contact Recreation Gilmore Branch .............................................................. 11030017 39 Primary Contact Recreation Gypsum Creek ............................................................... 11030017 30 Primary Contact Recreation Henry Creek ................................................................... 11030017 33 Primary Contact Recreation Lower Branch ................................................................. 11030017 42 Primary Contact Recreation Prairie Creek .................................................................. 11030017 35 Primary Contact Recreation Rock Creek .................................................................... 11030017 37 Primary Contact Recreation Sand Creek .................................................................... 11030017 29 Primary Contact Recreation Satchel Creek ................................................................. 11030017 10 Primary Contact Recreation School Branch ................................................................ 11030017 45 Primary Contact Recreation


### 440 40 CFR Ch. I (7

– 1

– 08 Edition) § 131.34

Stream segment name HUC8 Segment # Designated use

Sutton Creek .................................................................. 11030017 40 Primary Contact Recreation Walnut Creek ................................................................. 11030017 44 Primary Contact Recreation Whitewater Creek ........................................................... 11030017 34 Primary Contact Recreation Whitewater Creek, East Branch ..................................... 11030017 31 Primary Contact Recreation Whitewater River, East Branch ...................................... 11030017 22 Primary Contact Recreation Whitewater River, West Branch ..................................... 11030017 24 Primary Contact Recreation Whitewater River, West Branch ..................................... 11030017 25 Primary Contact Recreation Wildcat Creek ................................................................. 11030017 26 Primary Contact Recreation Wildcat Creek, West ...................................................... 11030017 28 Primary Contact Recreation

**Subbasin: Lower Walnut River**

Black Crook Creek ......................................................... 11030018 18 Primary Contact Recreation Cedar Creek ................................................................... 11030018 19 Secondary Contact Recreation Chigger Creek ................................................................ 11030018 21 Primary Contact Recreation Crooked Creek ............................................................... 11030018 31 Primary Contact Recreation Durham Creek ................................................................ 11030018 23 Primary Contact Recreation Dutch Creek ................................................................... 11030018 2 Primary Contact Recreation Dutch Creek ................................................................... 11030018 4 Primary Contact Recreation Eightmile Creek .............................................................. 11030018 30 Primary Contact Recreation Foos Creek ..................................................................... 11030018 26 Primary Contact Recreation Hickory Creek ................................................................. 11030018 12 Primary Contact Recreation Honey Creek .................................................................. 11030018 33 Primary Contact Recreation Little Dutch Creek .......................................................... 11030018 27 Primary Contact Recreation Lower Dutch Creek ........................................................ 11030018 20 Primary Contact Recreation Plum Creek .................................................................... 11030018 36 Primary Contact Recreation Polecat Creek ................................................................. 11030018 17 Primary Contact Recreation Posey Creek ................................................................... 11030018 37 Primary Contact Recreation Richland Creek ............................................................... 11030018 25 Primary Contact Recreation Rock Creek, North Branch ............................................. 11030018 35 Primary Contact Recreation Sanford Creek ................................................................ 11030018 29 Primary Contact Recreation Spring Branch ................................................................ 11030018 32 Primary Contact Recreation Stalter Branch ................................................................ 11030018 24 Primary Contact Recreation Stewart Creek ................................................................ 11030018 28 Primary Contact Recreation Swisher Branch .............................................................. 11030018 22 Primary Contact Recreation

**Total = 1186**

Lake name County Designated use

**Basin: Cimarron Subbasin: Upper Cimarron (HUC 11040002)** 

Moss Lake East .......................................... MORTON ................................................... Primary Contac t Recreation Moss Lake West ......................................... MORTON ................................................... Primary Contact Recreation

**Subbasin: North Fork Cimarron (HUC 11040006)**

Russell Lake ............................................... STEVENS .................................................. Primary Con tact Recreation

**Subbasin: Upper Cimarron-Bluff (HUC 11040008)**

Clark State Fishing Lake ............................ CLARK ....................................................... Primary Contact Recreation Saint Jacob ’ s Well ...................................... CLARK ....................................................... Primary Contact Recreat ion

**Basin: Kansas/Lower Republican Subbasin: Middle Republican (HUC 10250016)** 

Lake Jewell ................................................. JEWELL ..................................................... Primary Contact Recreation

**Subbasin: Lower Republican (HUC 10250017)**

Belleville City Lake ..................................... REPUBLIC ................................................. Primary Conta ct Recreation Wakefield Lake ........................................... CLAY .......................................................... Primary Contact Recreation

**Subbasin: Middle Kansas (HUC 10270102)**

Alma City Reservoir .................................... WABAUNSEE ............................................ Primary Contact Rec reation Cedar Crest Pond ....................................... SHAWNEE ................................................. Primary Contact Recreation Central Park Lake ....................................... SHAWNEE ................................................. Primary Contact Recreation Gage Park Lake ......................................... SHAWNEE ................................................. Primary Contact Recreation Jeffrey Energy Center Lakes ...................... POTTAWATOMIE ...................................... Primary Contact Recreation


### 441 Environmental Protection Agency § 131.34

Lake name County Designated use

**Subbasin: Delaware (HUC 10270103)**

Atchison County Park Lake ........................ ATCHISON ................................................ Primary Contact Recrea tion Little Lake ................................................... BROWN ..................................................... Primary Contact Recreation

**Subbasin: Lower Kansas (HUC 10270104)**

Douglas County State Lake ....................... DOUGLAS ................................................. Primary Contact Recreat ion Lenexa Lake ............................................... JOHNSON ................................................. Primary Conta ct Recreation Mahaffie Farmstead Pond .......................... JOHNSON ................................................. Primary Contact Recrea tion Pierson Park Lake ...................................... WYANDOTTE ............................................ Primary Contact Rec reation Waterworks Lakes ...................................... JOHNSON ................................................. Primary Contact R ecreation

**Subbasin: Lower Big Blue (HUC 10270205)**

Lake Idlewild ............................................... MARSHALL ................................................ Primary Con tact Recreation

**Subbasin: Lower Little Blue (HUC 10270207)**

Washington County State Fishing Lake ..... WASHINGTON .......................................... Primary Contact Recreation

**Basin: Lower Arkansas Subbasin: Rattlesnake (HUC 11030009)** 

Kiowa County State Fishing Lake .............. KIOWA ....................................................... Primary Contact Recrea tion

**Subbasin: Cow (HUC 11030011)**

Barton Lake ................................................ BARTON .................................................... Primary Co ntact Recreation Sterling City Lake ....................................... RICE .......................................................... Primary Contact Recreation

**Subbasin: Little Arkansas (HUC 11030012)**

Dillon Park Lakes #1 .................................. RENO ......................................................... Primary Cont act Recreation Dillon Park Lake #2 .................................... RENO ......................................................... Primary Con tact Recreation Newton City Park Lake ............................... HARVEY .................................................... Primary Contact R ecreation

**Subbasin: Middle Arkansas-Slate (HUC 11030013)**

Belaire Lake ................................................ SEDGWICK ............................................... Primary Cont act Recreation Buffalo Park Lake ....................................... SEDGWICK ............................................... Primary Contact Recreation Emery Park ................................................. SEDGWICK ............................................... Primary Conta ct Recreation Harrison Park Lake ..................................... SEDGWICK ............................................... Primary Contact R ecreation Riggs Park Lake ......................................... SEDGWICK ............................................... Primary Contact Recreation

**Subbasin: South Fork Ninnescah (HUC 11030015)**

Lemon Park Lake ....................................... PRATT ....................................................... Primary Conta ct Recreation

**Subbasin: Medicine Lodge (HUC 11060003)**

Barber County State Fishing Lake ............. BARBER .................................................... Primary Contact Recreati on

**Subbasin: Lower Salt Fork Arkansas (HUC 11060004)**

Hargis Lake ................................................ BARBER .................................................... Primary Co ntact Recreation

**Basin: Marais Des Cygnes Subbasin: Upper Marais Des Cygnes (HUC 10290101)** 

Allen City Lake ........................................... LYON ......................................................... Primary Contact Recreation Cedar Creek Lake ...................................... ANDERSON ............................................... Primary Contact Re creation Crystal Lake ................................................ ANDERSON ............................................... Primary Cont act Recreation Lyon County State Fishing Lake ................ LYON ......................................................... Primary Contact Recr eation Osage City Reservoir ................................. OSAGE ...................................................... Primary Contact Recreation Waterworks Impoundment .......................... ANDERSON ............................................... Primary Contact Recreati on

**Subbasin: Lower Marais Des Cygnes (HUC 10290102)**

Edgerton City Lake ..................................... JOHNSON ................................................. Primary Contact Recreation Edgerton South Lake .................................. JOHNSON ................................................. Primary Contact Re creation Lake LaCygne ............................................ LINN ........................................................... Primary Contact Recreation Louisburg State Fishing Lake ..................... MIAMI ......................................................... Primary Contact Recreation Miami County State Fishing Lake .............. MIAMI ......................................................... Primary Contact Recr eation Paola City Lake .......................................... MIAMI ......................................................... Primary Contact Recreation


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Lake name County Designated use

Pleasanton Lake #1 .................................... LINN ........................................................... Primary Co ntact Recreation Pleasanton Lake #2 .................................... LINN ........................................................... Primary Co ntact Recreation Spring Hill City Lake ................................... JOHNSON ................................................. Primary Contact Recreation

**Subbasin: Marmaton (HUC 10290104)**

Gunn Park Lake, East ................................ BOURBON ................................................. Primary Contact Rec reation Gunn Park Lake, West ............................... BOURBON ................................................. Primary Contact Recr eation Rock Creek Lake ........................................ BOURBON ................................................. Primary Contact Recreation

**Basin: Missouri Subbasin: South Fork Big Nemaha (HUC 10240007)** 

Pony Creek Lake ........................................ NEMAHA .................................................... Primary Contac t Recreation Sabetha City Lake ...................................... NEMAHA .................................................... Primary Contac t Recreation

**Subbasin: Independence-Sugar (HUC 10240011)**

Atchison City Lakes .................................... ATCHISON ................................................ Primary Contact Recreation Big Eleven Lake ......................................... WYANDOTTE ............................................ Primary Contact Re creation Doniphan Fair Association Lake ................ DONIPHAN ................................................ Primary Contact Recreatio n Jerrys Lake ................................................. LEAVENWORTH ....................................... Primary Contact R ecreation Lansing City Lake ....................................... LEAVENWORTH ....................................... Primary Contact Recre ation South Park Lake ......................................... LEAVENWORTH ....................................... Primary Contact Recre ation

**Subbasin: Lower Missouri-Crooked (HUC 10300101)**

Prairie View Park ........................................ JOHNSON ................................................. Primary Contac t Recreation South Park Lake ......................................... JOHNSON ................................................. Primary Contact Recreation Stanley Rural Water District Lake #2 ......... JOHNSON ................................................. Primary Contact Recreation Stohl Park Lake .......................................... JOHNSON ................................................. Primary Contac t Recreation

**Basin: Neosho Subbasin: Lower Cottonwood (HUC 11070203)** 

Peter Pan Pond .......................................... LYON ......................................................... Primary Co ntact Recreation

**Subbasin: Upper Neosho (HUC 11070204)**

Chanute City (Santa Fe) Lake ................... NEOSHO ................................................... Primary Contact Recreat ion Leonard ’ s Lake ........................................... WOODSON ................................................ Primary Contact Recreat ion

**Subbasin: Middle Neosho (HUC 11070205)**

Altamont City Lake #1 ................................ LABETTE ................................................... Primary Contact Recreation Bartlett City Lake ........................................ LABETTE ................................................... Primary Con tact Recreation Harmon Wildlife Area Lakes ....................... LABETTE ................................................... Primary Contact Recr eation Mined Land Wildlife Area Lakes ................ CHEROKEE ............................................... Primary Contact Recreation Timber Lake ................................................ NEOSHO ................................................... Primary Con tact Recreation

**Subbasin: Spring (HUC 11070207)**

Empire Lake ................................................ CHEROKEE ............................................... Primary Conta ct Recreation Frontenac City Park .................................... CRAWFORD .............................................. Primary Contact Re creation Mined Land Wildlife Area Lakes ................ CRAWFORD .............................................. Primary Contact Recreation Pittsburg College Lake ............................... CRAWFORD .............................................. Primary Contact Recr eation Playters Lake .............................................. CRAWFORD .............................................. Primary Contac t Recreation

**Basin: Smoky Hill/Saline Subbasin: Lower Smoky Hill (HUC 10260008)** 

Herington City Park Lake ........................... DICKINSON ............................................... Primary Contact Recr eation Herington Reservoir .................................... DICKINSON ............................................... Primary Contact Recreation

**Basin: Solomon Subbasin: Lower North Fork Solomon (HUC 10260012)** 

Francis Wachs Wildlife Area Lakes ............ SMITH ........................................................ Primary Contact Recre ation

**Subbasin: Solomon River (HUC 10260015)**

Jewell County State Fishing Lake .............. JEWELL ..................................................... Primary Contact Recrea tion Ottawa County State Fishing Lake ............ OTTAWA .................................................... Primary Contact Recreatio n


### 443 Environmental Protection Agency § 131.34

Lake name County Designated use

**Basin: Upper Arkansas Subbasin: Middle Arkansas-Lake McKinney (HUC 11030001)** 

Lake McKinney ........................................... KEARNY .................................................... Primary Conta ct Recreation

**Subbasin: Arkansas-Dodge City (HUC 11030003)**

Lake Charles .............................................. FORD ......................................................... Primary Contact Recreation

**Subbasin: Pawnee (HUC 11030005)**

Concannon State Fishing Lake .................. FINNEY ...................................................... Primary Contact Recre ation Finney County Game Refuge Lakes .......... FINNEY ...................................................... Primary Contact Recreation

**Subbasin: Buckner (HUC 11030006)**

Ford County Lake ....................................... FORD ......................................................... Primary Con tact Recreation Hain State Fishing Lake ............................. FORD ......................................................... Primary Contac t Recreation

**Subbasin: Upper Walnut Creek (HUC 11030007)**

Goodman State Fishing Lake ..................... NESS ......................................................... Primary Contact Rec reation

**Subbasin: Lower Walnut Creek (HUC 11030008)**

Memorial Park Lake .................................... BARTON .................................................... Primary Contact Recreation Stone Lake ................................................. BARTON .................................................... Primary Co ntact Recreation

**Basin: Verdigris Subbasin: Upper Verdigris (HUC 11070101)** 

Quarry Lake ................................................ WILSON ..................................................... Primary C ontact Recreation Thayer New City Lake ................................ NEOSHO ................................................... Primary Contact Re creation

**Subbasin: Middle Verdigris (HUC 11070103)**

La Claire Lake ............................................ MONTGOMERY ........................................ Primary Contact Rec reation Pfister Park Lakes ...................................... MONTGOMERY ........................................ Primary Contact Recre ation

**Subbasin: Caney (HUC 11070106)**

Caney City Lake ......................................... CHAUTAUQUA .......................................... Primary Contact Rec reation

**Basin: Walnut Subbasin: Lower Walnut River (HUC 11030018)** 

Butler County State Fishing Lake .............. BUTLER ..................................................... Primary Contact Recrea tion Winfield Park Lagoon ................................. COWLEY ................................................... Primary Contact R ecreation

**Total = 100**

(c) Water quality standard variances. (1) The Regional Administrator, EPA Region 7, is authorized to grant variances from the water quality standards in paragraphs (a) and (b) of this section where the requirements of this paragraph (c) are met. A water quality standard variance applies onlyto the permittee requesting the variance and only to the pollutant or pollutants specified in the variance; theunderlying water quality standard otherwise remains in effect.

(2) A water quality standard variance shall not be granted if: (i) Standards will be attained by implementing effluent limitations required under sections 301(b) and 306 ofthe CWA and by the permittee implementing reasonable best management practices for nonpoint source control;

or

(ii) The variance would likely jeopardize the continued existence of any threatened or endangered species listedunder section 4 of the Endangered Species Act or result in the destruction or adverse modification of such species ’ critical habitat.


### 444 40 CFR Ch. I (7

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(3) Subject to paragraph (c)(2) of thissection, a water quality standards variance may be granted if the applicant demonstrates to EPA that attainingthe water quality standard is not feasible because:

(i) Naturally occurring pollutant concentrations prevent the attainment of the use; or

(ii) Natural, ephemeral, intermittent or low flow conditions or water levelsprevent the attainment of the use, unless these conditions may be compensated for by the discharge of sufficient volume of effluent dischargeswithout violating State water conservation requirements to enable uses to be met; or

(iii) Human caused conditions orsources of pollution prevent the attainment of the use and cannot be remedied or would cause more environmental damage to correct than to leave in place; or

(iv) Dams, diversions or other types of hydrologic modifications preclude the attainment of the use, and it is not feasible to restore the water body to its original condition or to operate suchmodification in a way which would result in the attainment of the use; or

(v) Physical conditions related to the natural features of the water body, such as the lack of a proper substrate, cover, flow, depth, pools, riffles, and the like unrelated to water quality, preclude attainment of aquatic life protection uses; or

(vi) Controls more stringent than those required by sections 301(b) and306 of the CWA would result in substantial and widespread economic and social impact.

(4) Procedures. An applicant for a water quality standards variance shallsubmit a request to the Regional Administrator of EPA Region 7. The application shall include all relevant information showing that the requirements for a variance have been satisfied. The burden is on the applicant to demonstrate to EPA ’ s satisfaction that the designated use is unattainable forone of the reasons specified in paragraph (c)(3) of this section. If the Regional Administrator preliminarily determines that grounds exist for granting a variance, he shall provide public notice of the proposed variance and provide an opportunity for public comment. Any activities required as a condition of the Regional Administrator ’ s granting of a variance shall be included as conditions of the NPDES permit forthe applicant. These terms and conditions shall be incorporated into the applicant ’ s NPDES permit through the permit reissuance process or through a modification of the permit pursuant tothe applicable permit modification provisions of Kansas ’ NPDES program

(5) A variance may not exceed 3 years or the term of the NPDES permit, whichever is less. A variance may be renewed if the applicant reapplies and demonstrates that the use in question is still not attainable. Renewal of the variance may be denied if the applicant did not comply with the conditions of the original variance, or otherwise doesnot meet the requirements of this section.

[68 FR 40442, July 7, 2003]

§ 131.35 Colville Confederated Tribes Indian Reservation.
The water quality standards applicable to the waters within the Colville Indian Reservation, located in the State of Washington.

(a) Background. (1) It is the purposeof these Federal water quality standards to prescribe minimum water quality requirements for the surface waters located within the exterior boundaries of the Colville Indian Reservation to ensure compliance with section 303(c) of the Clean Water Act.

(2) The Colville Confederated Tribeshave a primary interest in the protection, control, conservation, and utilization of the water resources of the Colville Indian Reservation. Water quality standards have been enacted into tribal law by the Colville Business Council of the Confederated Tribes of the Colville Reservation, as the Colville Water Quality Standards Act, CTC Title 33 (Resolution No. 1984

– 526(August 6, 1984) as amended by Resolution No. 1985

– 20 (January 18, 1985)).

(b) Territory covered. The provisions of these water quality standards shall apply to all surface waters within theexterior boundaries of the Colville Indian Reservation.

(c) Applicability, Administration and Amendment. (1) The water quality


### 445 Environmental Protection Agency § 131.35

standards in this section shall be usedby the Regional Administrator for establishing any water quality based National Pollutant Discharge Elimination System Permit (NPDES) for point sources on the Colville Confederated Tribes Reservation.

(2) In conjunction with the issuance of section 402 or section 404 permits,the Regional Administrator may designate mixing zones in the waters of the United States on the reservation on a case-by-case basis. The size of such mixing zones and the in-zone water quality in such mixing zones shall be consistent with the applicable procedures and guidelines in EPA ’ s Water Quality Standards Handbook and the Technical Support Documentfor Water Quality Based Toxics Control.

(3) Amendments to the section at the request of the Tribe shall proceed in the following manner.

(i) The requested amendment shallfirst be duly approved by the Confederated Tribes of the Colville Reservation (and so certified by the Tribes Legal Counsel) and submitted to the Regional Administrator.

(ii) The requested amendment shall be reviewed by EPA (and by the Stateof Washington, if the action would affect a boundary water).

(iii) If deemed in compliance with the Clean Water Act, EPA will propose and promulgate an appropriate change to this section.

(4) Amendment of this section at EPA ’ s initiative will follow consultation with the Tribe and other appropriate entities. Such amendments will then follow normal EPA rulemaking procedures.

(5) All other applicable provisions of this part 131 shall apply on the ColvilleConfederated Tribes Reservation. Special attention should be paid to §§ 131.6,131.10, 131.11 and 131.20 for any amendment to these standards to be initiated by the Tribe.

(6) All numeric criteria contained in this section apply at all in-stream flow rates greater than or equal to the flowrate calculated as the minimum 7-consecutive day average flow with a recurrence frequency of once in ten years (7Q10); narrative criteria ( § 131.35(e)(3)) apply regardless of flow. The 7Q10 low flow shall be calculated using methods recommended by the U.S. Geological Survey.

(d) Definitions. (1) Acute toxicity means a deleterious response (e.g.,mortality, disorientation, immobilization) to a stimulus observed in 96 hours or less.

(2) Background conditions means thebiological, chemical, and physical conditions of a water body, upstream from the point or non-point source dischargeunder consideration. Background sampling location in an enforcement action will be upstream from the point of discharge, but not upstream from other inflows. If several discharges to any water body exist, and an enforcementaction is being taken for possible violations to the standards, backgroundsampling will be undertaken immediately upstream from each discharge.

(3) Ceremonial and Religious water use means activities involving traditional Native American spiritual practiceswhich involve, among other things, primary (direct) contact with water.

(4) Chronic toxicity means the lowest concentration of a constituent causing observable effects (i.e., consideringlethality, growth, reduced reproduction, etc.) over a relatively long period of time, usually a 28-day test period for small fish test species.

(5) Council or Tribal Council means the Colville Business Council of the Colville Confederated Tribes.

(6) Geometric mean means the nth root of a product of n factors.

(7) Mean retention time means the time obtained by dividing a reservoir ’ s mean annual minimum total storageby the non-zero 30-day, ten-year lowflow from the reservoir.

(8) Mixing zone or dilution zone means a limited area or volume of water where initial dilution of a discharge takes place; and where numeric water quality criteria can be exceeded but acutely toxic conditions are prevented from occurring.

(9) pH means the negative logarithm of the hydrogen ion concentration.

(10) Primary contact recreation means activities where a person would have direct contact with water to the point of complete submergence, includingbut not limited to skin diving, swimming, and water skiing.


### 446 40 CFR Ch. I (7

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(11) Regional Administrator means the Administrator of EPA ’ s Region X.

(12) Reservation means all land withinthe limits of the Colville Indian Reservation, established on July 2, 1872 by Executive Order, presently containing 1,389,000 acres more or less, and under the jurisdiction of the United States government, notwithstanding the issuance of any patent, and includingrights-of-way running through the reservation.

(13) Secondary contact recreation means activities where a person ’ s water contact would be limited to the extent that bacterial infections of eyes, ears, respiratory, or digestive systems or urogenital areas would normally be avoided (such as wading or fishing).

(14) Surface water means all water above the surface of the ground within the exterior boundaries of the Colville Indian Reservation including but notlimited to lakes, ponds, reservoirs, artificial impoundments, streams, rivers, springs, seeps and wetlands.

(15) Temperature means water temperature expressed in Centigrade degrees (C).

(16) Total dissolved solids (TDS) means the total filterable residue that passes through a standard glass fiber filter disk and remains after evaporation anddrying to a constant weight at 180 degrees C. it is considered to be a measure of the dissolved salt content of the water.

(17) Toxicity means acute and/or chronic toxicity.

(18) Tribe or Tribes means the Colville Confederated Tribes.

(19) Turbidity means the clarity ofwater expressed as nephelometric turbidity units (NTU) and measured with a calibrated turbidimeter.

(20) Wildlife habitat means the watersand surrounding land areas of the Reservation used by fish, other aquatic life and wildlife at any stage of their life history or activity.

(e) General considerations. The following general guidelines shall apply to the water quality standards andclassifications set forth in the use designation Sections.

(1) Classification boundaries. At the boundary between waters of different classifications, the water quality standards for the higher classification shall prevail.

(2) Antidegradation policy. Thisantidegradation policy shall be applicable to all surface waters of the Reservation.

(i) Existing in-stream water uses and the level of water quality necessary toprotect the existing uses shall be maintained and protected.

(ii) Where the quality of the waters exceeds levels necessary to supportpropagation of fish, shellfish, and wildlife and recreation in and on the water, that quality shall be maintained andprotected unless the Regional Administrator finds, after full satisfaction of the inter-governmental coordination and public participation provisions of the Tribes ’ continuing planning process, that allowing lower water qualityis necessary to accommodate important economic or social development inthe area in which the waters are located. In allowing such degradation orlower water quality, the Regional Administrator shall assure water quality adequate to protect existing uses fully. Further, the Regional Administrator shall assure that there shall beachieved the highest statutory and regulatory requirements for all new andexisting point sources and all cost-effective and reasonable best management practices for nonpoint source control.

(iii) Where high quality waters areidentified as constituting an outstanding national or reservation resource, such as waters within areas designated as unique water qualitymanagement areas and waters otherwise of exceptional recreational or ecological significance, and are designated as special resource waters, that waterquality shall be maintained and protected.

(iv) In those cases where potential water quality impairment associated with a thermal discharge is involved, this antidegradation policy ’ s implementing method shall be consistent with section 316 of the Clean Water Act.

(3) Aesthetic qualities. All waters within the Reservation, including those within mixing zones, shall be free from substances, attributable to wastewater


### 447 Environmental Protection Agency § 131.35

discharges or other pollutant sources, that:

(i) Settle to form objectionable deposits;

(ii) Float as debris, scum, oil, or other matter forming nuisances;

(iii) Produce objectionable color, odor, taste, or turbidity;

(iv) Cause injury to, are toxic to, orproduce adverse physiological responses in humans, animals, or plants;

or

(v) produce undesirable or nuisance aquatic life.

(4) Analytical methods. (i) The analytical testing methods used to measure or otherwise evaluate compliance withwater quality standards shall to the extent practicable, be in accordance with the ‘‘ Guidelines Establishing Test Procedures for the Analysis of Pollutants ’’(40 CFR part 136). When a testing method is not available for a particular substance, the most recent edition of

‘‘ Standard Methods for the Examination of Water and Wastewater ’’ (published by the American Public Health Association, American Water Works Association, and the Water PollutionControl Federation) and other or superseding methods published and/or approved by EPA shall be used.

(f) General water use and criteria classes. The following criteria shall apply to the various classes of surface waters on the Colville Indian Reservation:

(1) Class I (Extraordinary)

— (i) Designated uses. The designated uses include, but are not limited to, the following:

(A) Water supply (domestic, industrial, agricultural).

(B) Stock watering.(C) Fish and shellfish: Salmonid migration, rearing, spawning, and harvesting; other fish migration, rearing, spawning, and harvesting.

(D) Wildlife habitat. (E) Ceremonial and religious water

use.

(F) Recreation (primary contact recreation, sport fishing, boating and aesthetic enjoyment).

(G) Commerce and navigation. (ii) Water quality criteria. (A) Bacteriological Criteria. The geometricmean of the enterococci bacteria densities in samples taken over a 30 dayperiod shall not exceed 8 per 100 milliliters, nor shall any single sample exceed an enterococci density of 35 per100 milliliters. These limits are calculated as the geometric mean of thecollected samples approximately equally spaced over a thirty day period.

(B) Dissolved oxygen

— The dissolved oxygen shall exceed 9.5 mg/l.

(C) Total dissolved gas

— concentrations shall not exceed 110 percent of the saturation value for gases at the existing atmospheric and hydrostaticpressures at any point of sample collection.

(D) Temperature

— shall not exceed 16.0 degrees C due to human activities. Temperature increases shall not, at any time, exceed t=23/(T+5).

( 1 ) When natural conditions exceed 16.0 degrees C, no temperature increasewill be allowed which will raise the receiving water by greater than 0.3 degrees C.

( 2 ) For purposes hereof, ‘‘ t ’’ represents the permissive temperature change across the dilution zone; and

‘‘ T ’’ represents the highest existingtemperature in this water classification outside of any dilution zone.

( 3 ) Provided that temperature increase resulting from nonpoint source activities shall not exceed 2.8 degreesC, and the maximum water temperature shall not exceed 10.3 degrees C.

(E) pH shall be within the range of 6.5 to 8.5 with a human-caused variation of less than 0.2 units.

(F) Turbidity shall not exceed 5 NTU over background turbidity when the background turbidity is 50 NTU or less, or have more than a 10 percent increasein turbidity when the background turbidity is more than 50 NTU.

(G) Toxic, radioactive, nonconventional, or deleterious material concentrations shall be less than those of public health significance, or whichmay cause acute or chronic toxic conditions to the aquatic biota, or which may adversely affect designated water

uses.

(2) Class II (Excellent)

— (i) Designated

uses. The designated uses include but are not limited to, the following:

(A) Water supply (domestic, industrial, agricultural).

(B) Stock watering.


### 448 40 CFR Ch. I (7

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(C) Fish and shellfish: Salmonid migration, rearing, spawning, and harvesting; other fish migration, rearing, spawning, and harvesting; crayfish rearing, spawning, and harvesting.

(D) Wildlife habitat. (E) Ceremonial and religious water

use.

(F) Recreation (primary contact recreation, sport fishing, boating and aesthetic enjoyment).

(G) Commerce and navigation. (ii) Water quality criteria. (A) Bacteriological Criteria

— The geometricmean of the enterococci bacteria densities in samples taken over a 30 day period shall not exceed 16/100 ml, nor shall any single sample exceed anenterococci density of 75 per 100 milliliters. These limits are calculated as the geometric mean of the collected samples approximately equally spaced over a thirty day period.

(B) Dissolved oxygen

— The dissolved oxygen shall exceed 8.0 mg/l.

(C) Total dissolved gas

— concentrations shall not exceed 110 percent of the saturation value for gases at the existing atmospheric and hydrostaticpressures at any point of sample collection.

(D) Temperature-shall not exceed 18.0 degrees C due to human activities. Temperature increases shall not, at any time, exceed t=28/(T+7).

( 1 ) When natural conditions exceed 18 degrees C no temperature increase willbe allowed which will raise the receiving water temperature by greater than 0.3 degrees C.

( 2 ) For purposes hereof, ‘‘ t ’’ represents the permissive temperature change across the dilution zone; and

‘‘ T ’’ represents the highest existingtemperature in this water classification outside of any dilution zone.

( 3 ) Provided that temperature increase resulting from non-point source activities shall not exceed 2.8 degreesC, and the maximum water temperature shall not exceed 18.3 degrees C.

(E) pH shall be within the range of 6.5 to 8.5 with a human-caused variation of less than 0.5 units.

(F) Turbidity shall not exceed 5 NTU over background turbidity when the background turbidity is 50 NTU or less, or have more than a 10 percent increase in turbidity when the background turbidity is more than 50 NTU.

(G) Toxic, radioactive, nonconventional, or deleterious material concentrations shall be less than those of public health significance, or whichmay cause acute or chronic toxic conditions to the aquatic biota, or which may adversely affect designated water

uses.

(3) Class III (Good)

— (i) Designated

uses. The designated uses include but are not limited to, the following:

(A) Water supply (industrial, agricultural).

(B) Stock watering.(C) Fish and shellfish: Salmonid migration, rearing, spawning, and harvesting; other fish migration, rearing, spawning, and harvesting; crayfish rearing, spawning, and harvesting.

(D) Wildlife habitat. (E) Recreation (secondary contact recreation, sport fishing, boating and aesthetic enjoyment).

(F) Commerce and navigation. (ii) Water quality criteria. (A) Bacteriological Criteria

— The geometricmean of the enterococci bacteria densities in samples taken over a 30 day period shall not exceed 33/100 ml, nor shall any single sample exceed anenterococci density of 150 per 100 milliliters. These limits are calculated as the geometric mean of the collected samples approximately equally spaced over a thirty day period.

(B) Dissolved oxygen.

Early life stages 1,2 Other life stages

7 day mean ........................................... 9.5 (6.5) 3 NA 1 day minimum 4 .................................... 8.0 (5.0) 6.5

1 These are water column concentrations recommended toachieve the required intergravel dissolved oxygen concentrations shown in parentheses. The 3 mg/L differential is discussed in the dissolved oxygen criteria document (EPA 440/ 5

– 86

– 003, April 1986). For species that have early life stagesexposed directly to the water column, the figures in parentheses apply.

2 Includes all embryonic and larval stages and all juvenile forms to 30-days following hatching.

3 NA (not applicable)

4 All minima should be considered as instantaneous concentrations to be achieved at all times.

(C) Total dissolved gas concentrations shall not exceed 110 percent of the saturation value for gases at the existing atmospheric and hydrostaticpressures at any point of sample collection.


### 449 Environmental Protection Agency § 131.35

(D) Temperature shall not exceed 21.0 degrees C due to human activities. Temperature increases shall not, at any time, exceed t=34/(T+9).

( 1 ) When natural conditions exceed 21.0 degrees C no temperature increasewill be allowed which will raise the receiving water temperature by greater than 0.3 degrees C.

( 2 ) For purposes hereof, ‘‘ t ’’ represents the permissive temperature change across the dilution zone; and

‘‘ T ’’ represents the highest existingtemperature in this water classification outside of any dilution zone.

( 3 ) Provided that temperature increase resulting from nonpoint source activities shall not exceed 2.8 degreesC, and the maximum water temperature shall not exceed 21.3 degrees C.

(E) pH shall be within the range of 6.5 to 8.5 with a human-caused variation of less than 0.5 units.

(F) Turbidity shall not exceed 10 NTU over background turbidity when the background turbidity is 50 NTU or less, or have more than a 20 percent increasein turbidity when the background turbidity is more than 50 NTU.

(G) Toxic, radioactive, nonconventional, or deleterious material concentrations shall be less than those of public health significance, or whichmay cause acute or chronic toxic conditions to the aquatic biota, or which may adversely affect designated water

uses.

(4) Class IV (Fair)

— (i) Designated uses. The designated uses include but are not limited to, the following:

(A) Water supply (industrial). (B) Stock watering.(C) Fish (salmonid and other fish migration).

(D) Recreation (secondary contact recreation, sport fishing, boating and aesthetic enjoyment).

(E) Commerce and navigation. (ii) Water quality criteria. (A) Dissolved oxygen.

During periods of salmonid and otherfish migration During all other time periods

30 day mean ................................. 6.5 5.5 7 day mean ................................... 1 NA 1 NA 7 day mean minimum .................... 5.0 4.0 During periods of salmonid and otherfish migration During all other time periods

1 day minimum 2 ............................ 4.0 3.0

1 NA (not applicable).

2 All minima should be considered as instantaneous con- centrations to be achieved at all times.

(B) Total dissolved gas

— concentrations shall not exceed 110 percent of the saturation value for gases at the existing atmospheric and hydrostaticpressures at any point of sample collection.

(C) Temperature shall not exceed 22.0 degrees C due to human activities. Temperature increases shall not, at any time, exceed t=20/(T+2).

( 1 ) When natural conditions exceed 22.0 degrees C, no temperature increasewill be allowed which will raise the receiving water temperature by greater than 0.3 degrees C.

( 2 ) For purposes hereof, ‘‘ t ’’ represents the permissive temperature change across the dilution zone; and

‘‘ T ’’ represents the highest existingtemperature in this water classification outside of any dilution zone.

(D) pH shall be within the range of 6.5 to 9.0 with a human-caused variation of less than 0.5 units.

(E) Turbidity shall not exceed 10 NTU over background turbidity when the background turbidity is 50 NTU or less, or have more than a 20 percent increasein turbidity when the background turbidity is more than 50 NTU.

(F) Toxic, radioactive, nonconventional, or deleterious material concentrations shall be less than those of public health significance, or whichmay cause acute or chronic toxic conditions to the aquatic biota, or which may adversely affect designated water

uses.

(5) Lake Class

— (i) Designated uses. The designated uses include but are not limited to, the following:

(A) Water supply (domestic, industrial, agricultural).

(B) Stock watering.(C) Fish and shellfish: Salmonid migration, rearing, spawning, and harvesting; other fish migration, rearing, spawning, and harvesting; crayfish rearing, spawning, and harvesting.

(D) Wildlife habitat.


### 450 40 CFR Ch. I (7

– 1

– 08 Edition) § 131.35

(E) Ceremonial and religious water

use.

(F) Recreation (primary contact recreation, sport fishing, boating and aesthetic enjoyment).

(G) Commerce and navigation. (ii) Water quality criteria. (A) Bacteriological Criteria. The geometricmean of the enterococci bacteria densities in samples taken over a 30 day period shall not exceed 33/100 ml, nor shall any single sample exceed anenterococci density of 150 per 100 milliliters. These limits are calculated as the geometric mean of the collected samples approximately equally spaced over a thirty day period.

(B) Dissolved oxygen

— no measurable decrease from natural conditions.

(C) Total dissolved gas concentrations shall not exceed 110 percent of the saturation value for gases at the existing atmospheric and hydrostaticpressures at any point of sample collection.

(D) Temperature

— no measurable change from natural conditions.

(E) pH

— no measurable change from natural conditions.

(F) Turbidity shall not exceed 5 NTU over natural conditions.

(G) Toxic, radioactive, nonconventional, or deleterious material concentrations shall be less than those which may affect public health, the natural aquatic environment, or the desirability of the water for any use.

(6) Special Resource Water Class (SRW)

— (i) General characteristics. Theseare fresh or saline waters which comprise a special and unique resource to the Reservation. Water quality of thisclass will be varied and unique as determined by the Regional Administrator in cooperation with the Tribes.

(ii) Designated uses. The designated uses include, but are not limited to, the following:

(A) Wildlife habitat. (B) Natural foodchain maintenance. (iii) Water quality criteria. (A) Enterococci bacteria densities shall not exceed natural conditions.

(B) Dissolved oxygen

— shall not show any measurable decrease from natural conditions.

(C) Total dissolved gas shall not vary from natural conditions. (D) Temperature

— shall not show anymeasurable change from natural conditions.

(E) pH shall not show any measurable change from natural conditions.

(F) Settleable solids shall not show any change from natural conditions.

(G) Turbidity shall not exceed 5 NTU over natural conditions.

(H) Toxic, radioactive, or deleteriousmaterial concentrations shall not exceed those found under natural conditions.

(g) General classifications. Generalclassifications applying to various surface waterbodies not specifically classified under § 131.35(h) are as follows:

(1) All surface waters that are tributaries to Class I waters are classified Class I, unless otherwise classified.

(2) Except for those specifically classified otherwise, all lakes with existing average concentrations less than 2000 mg/L TDS and their feeder streams on the Colville Indian Reservation areclassified as Lake Class and Class I, respectively.

(3) All lakes on the Colville IndianReservation with existing average concentrations of TDS equal to or exceeding 2000 mg/L and their feeder streams are classified as Lake Class and Class Irespectively unless specifically classified otherwise.

(4) All reservoirs with a mean detention time of greater than 15 days are classified Lake Class.

(5) All reservoirs with a mean detention time of 15 days or less are classified the same as the river section in which they are located.

(6) All reservoirs established on preexisting lakes are classified as Lake Class.

(7) All wetlands are assigned to the Special Resource Water Class.

(8) All other waters not specificallyassigned to a classification of the reservation are classified as Class II.

(h) Specific classifications. Specific classifications for surface waters of theColville Indian Reservation are as follows:
(1) Streams: Alice Creek ................................ Class III Anderson Creek ........................ Class III Armstrong Creek ....................... Class III Barnaby Creek .......................... Class II Bear Creek ................................ Class III Beaver Dam Creek .................... Class II Bridge Creek ............................. Class II


### 451 Environmental Protection Agency § 131.36

Brush Creek .............................. Class III Buckhorn Creek ......................... Class III Cache Creek ............................. Class III Canteen Creek .......................... Class I Capoose Creek ......................... Class III Cobbs Creek ............................. Class IIIColumbia River from Chief Joseph Dam to Wells Dam. Columbia River from northern

Reservation boundary toGrand Coulee Dam (Roosevelt Lake). Columbia River from Grand

Coulee Dam to Chief Joseph Dam. Cook Creek ............................... Class I Cooper Creek ............................ Class III Cornstalk Creek ......................... Class III Cougar Creek ............................ Class I Coyote Creek ............................ Class II Deerhorn Creek ......................... Class III Dick Creek ................................. Class III Dry Creek .................................. Class I Empire Creek ............................ Class III Faye Creek ................................ Class I Forty Mile Creek ........................ Class III Gibson Creek ............................ Class I Gold Creek ................................ Class II Granite Creek ............................ Class II Grizzly Creek ............................. Class III Haley Creek ............................... Class III Hall Creek .................................. Class II Hall Creek, West Fork ............... Class I Iron Creek .................................. Class III Jack Creek ................................ Class III Jerred Creek .............................. Class I Joe Moses Creek ...................... Class III John Tom Creek ........................ Class III Jones Creek .............................. Class I Kartar Creek .............................. Class III Kincaid Creek ............................ Class III King Creek ................................. Class III Klondyke Creek ......................... Class I Lime Creek ................................ Class III Little Jim Creek ......................... Class III Little Nespelem .......................... Class II Louie Creek ............................... Class III Lynx Creek ................................ Class II Manila Creek ............................. Class III McAllister Creek ........................ Class III Meadow Creek .......................... Class III Mill Creek .................................. Class II Mission Creek ............................ Class III Nespelem River ......................... Class II Nez Perce Creek ....................... Class III Nine Mile Creek ......................... Class II Nineteen Mile Creek .................. Class III No Name Creek ........................ Class II North Nanamkin Creek .............. Class III North Star Creek ....................... Class IIIOkanogan River from Reservation north boundary to Columbia River. Class II

Olds Creek ................................ Class I Omak Creek .............................. Class II Onion Creek .............................. Class II Parmenter Creek ....................... Class III Peel Creek ................................. Class III Peter Dan Creek ....................... Class III Rock Creek ................................ Class I San Poil River ........................... Class I Sanpoil, River West Fork .......... Class II Seventeen Mile Creek ............... Class III Silver Creek ............................... Class III Sitdown Creek ........................... Class III Six Mile Creek ........................... Class III South Nanamkin Creek ............. Class III Spring Creek ............................. Class III Stapaloop Creek ........................ Class III Stepstone Creek ........................ Class III Stranger Creek .......................... Class II Strawberry Creek ....................... Class III Swimptkin Creek ....................... Class III Three Forks Creek .................... Class I Three Mile Creek ....................... Class III Thirteen Mile Creek ................... Class II Thirty Mile Creek ....................... Class II Trail Creek ................................. Class III Twentyfive Mile Creek ............... Class III Twentyone Mile Creek .............. Class III Twentythree Mile Creek ............ Class III Wannacot Creek ........................ Class III Wells Creek ............................... Class I Whitelaw Creek ......................... Class III Wilmont Creek ........................... Class II (2) Lakes: Apex Lake ................................. LC Big Goose Lake ......................... LC Bourgeau Lake .......................... LC Buffalo Lake .............................. LC Cody Lake ................................. LC Crawfish Lakes .......................... LC Camille Lake .............................. LC Elbow Lake ................................ LC Fish Lake ................................... LC Gold Lake .................................. LC Great Western Lake .................. LC Johnson Lake ............................ LC LaFleur Lake ............................. LC Little Goose Lake ...................... LC Little Owhi Lake ......................... LC McGinnis Lake ........................... LC Nicholas Lake ............................ LC Omak Lake ................................ SRW Owhi Lake ................................. SRW Penley Lake ............................... SRW Rebecca Lake ........................... LC Round Lake ............................... LC Simpson Lake ............................ LC Soap Lake ................................. LC Sugar Lake ................................ LC Summit Lake ............................. LC Twin Lakes ................................ SRW

[54 FR 28625, July 6, 1989]

§ 131.36 Toxics criteria for those states not complying with Clean Water Act section 303(c)(2)(B).
(a) Scope. This section is not a general promulgation of the section 304(a) criteria for priority toxic pollutants but is restricted to specific pollutants in specific States.

(b)(1) EPA ’ s Section 304(a) criteria for Priority Toxic Pollutants.


### 452 40 CFR Ch. I (7

– 1

– 08 Edition) § 131.36A BFreshwaterCSaltwaterDHuman Health(10¥6risk for carcinogens)For consumption of:(#) Compound CAS NumberCriterionMaximumConc.d(μg/L)(B1)CriterionContinuousConc.d(μg/L)(B2)CriterionMaximumConc.d(μg/L)(C1)CriterionContinuousConc.d(μg/L)(C2)Water &Organisms(μg/L)(D1)OrganismsOnly(μg/L)(D2)1 Antimony ................................................................... 7440360 .......................... .......................... .......................... .......................... 14 a 4300 a2 Arsenic ...................................................................... 7440382 360 m 190 m 69 m 36 m 0.018 abc 0.14 abc3 Beryllium ................................................................... 7440417 .......................... .......................... .......................... .......................... n n4 Cadmium ................................................................... 7440439 3.7 e 1.0 e 42 m 9.3 m n n5a Chromium (III) ........................................................... 16065831 550 e 180 e .......................... .......................... n nb Chromium (VI) ........................................................... 18540299 15 m 10 m 1100 m 50 m n n6 Copper ...................................................................... 7440508 17 e 11 e 2.4 m 2.4 m7 Lead .......................................................................... 7439921 65 e 2.5 e 210 m 8.1 m n n8 Mercury ..................................................................... 7439976 2.1 m 0.012 ip 1.8 m 0.025 ip 0.14 0.159 Nickel ........................................................................ 7440020 1400 e 160 e 74 m 8.2 m 610 a 4600 a10 Selenium ................................................................... 7782492 20 p 5 p 290 m 71 m n n11 Silver ......................................................................... 7440224 3.4 e .......................... 1.9 m12 Thallium .................................................................... 7440280 .......................... .......................... .......................... .......................... 1.7 a 6.3 a13 Zinc ........................................................................... 7440666 110 e 100 e 90 m 81 m14 Cyanide ..................................................................... 57125 22 5.2 1 1 700 a 220000 aj15 Asbestos ................................................................... 1332214 .......................... .......................... .......................... .......................... 7,000,000fibers/L k16 2,3,7,8-TCDD (Dioxin) .............................................. 1746016 .......................... .......................... .......................... .......................... 0.000000013 c 0.000000014 c17 Acrolein ..................................................................... 107028 .......................... .......................... .......................... .......................... 320 78018 Acrylonitrile ............................................................... 107131 .......................... .......................... .......................... .......................... 0.059 ac 0.66 ac19 Benzene .................................................................... 71432 .......................... .......................... .......................... .......................... 1.2 ac 71 ac20 Bromoform ................................................................ 75252 .......................... .......................... .......................... .......................... 4.3 ac 360 ac21 Carbon Tetrachloride ................................................ 56235 .......................... .......................... .......................... .......................... 0.25 ac 4.4 ac22 Chlorobenzene ......................................................... 108907 .......................... .......................... .......................... .......................... 680 a 21000 aj23 Chlorodibromomethane ............................................ 124481 .......................... .......................... .......................... .......................... 0.41 ac 34 ac24 Chloroethane ............................................................ 7500325 2-Chloroethylvinyl Ether ........................................... 11075826 Chloroform ................................................................ 67663 .......................... .......................... .......................... .......................... 5.7 ac 470 ac27 Dichlorobromomethane ............................................ 75274 .......................... .......................... .......................... .......................... 0.27 ac 22 ac28 1,1-Dichloroethane ................................................... 7534329 1,2-Dichloroethane ................................................... 107062 .......................... .......................... .......................... .......................... 0.38 ac 99 ac30 1,1-Dichloroethylene ................................................. 75354 .......................... .......................... .......................... .......................... 0.057 ac 3.2 ac31 1,2-Dichloropropane ................................................. 7887532 1,3-Dichloropropylene ............................................... 542756 .......................... .......................... .......................... .......................... 10 a 1700 a33 Ethylbenzene ............................................................ 100414 .......................... .......................... .......................... .......................... 3100 a 29000 a34 Methyl Bromide ......................................................... 74839 .......................... .......................... .......................... .......................... 48 a 4000 a35 Methyl Chloride ......................................................... 74873 .......................... .......................... .......................... .......................... n n36 Methylene Chloride ................................................... 75092 .......................... .......................... .......................... .......................... 4.7 ac 1600 ac37 1,1,2,2-Tetrachloroethane ........................................ 79345 .......................... .......................... .......................... .......................... 0.17 ac 11 ac38 Tetrachloroethylene .................................................. 127184 .......................... .......................... .......................... .......................... 0.8 c 8.85 c39 Toluene ..................................................................... 108883 .......................... .......................... .......................... .......................... 6800 a 200000 a


### 453 Environmental Protection Agency § 131.3640 1,2-Trans-Dichloroethylene ...................................... 15660541 1,1,1-Trichloroethane ................................................ 71556 .......................... .......................... .......................... .......................... n n42 1,1,2-Trichloroethane ................................................ 79005 .......................... .......................... .......................... .......................... 0.60 ac 42 ac43 Trichloroethylene ...................................................... 79016 .......................... .......................... .......................... .......................... 2.7 c 81 c44 Vinyl Chloride ........................................................... 75014 .......................... .......................... .......................... .......................... 2 c 525 c45 2-Chlorophenol ......................................................... 9557846 2,4-Dichlorophenol .................................................... 120832 .......................... .......................... .......................... .......................... 93 a 790 aj47 2,4-Dimethylphenol ................................................... 10567948 2-Methyl-4,6-Dinitrophenol ....................................... 534521 .......................... .......................... .......................... .......................... 13.4 76549 2,4-Dinitrophenol ...................................................... 51285 .......................... .......................... .......................... .......................... 70 a 14000 a50 2-Nitrophenol ............................................................ 8875551 4-Nitrophenol ............................................................ 10002752 3-Methyl-4-Chlorophenol .......................................... 5950753 Pentachlorophenol .................................................... 87865 20 f 13 f 13 7.9 0.28 ac 8.2 acj54 Phenol ....................................................................... 108952 .......................... .......................... .......................... .......................... 21000 a 4600000 aj55 2,4,6-Trichlorophenol ................................................ 88062 .......................... .......................... .......................... .......................... 2.1 ac 6.5 ac56 Acenaphthene ........................................................... 8332957 Acenaphthylene ........................................................ 20896858 Anthracene ............................................................... 120127 .......................... .......................... .......................... .......................... 9600 a 110000 a59 Benzidine .................................................................. 92875 .......................... .......................... .......................... .......................... 0.00012 ac 0.00054 ac60 Benzo(a)Anthracene ................................................. 56553 .......................... .................................................... .......................... 0.0028 c 0.031 c61 Benzo(a)Pyrene ........................................................ 50328 .......................... .......................... .......................... .......................... 0.0028 c 0.031 c62 Benzo(b)Fluoranthene .............................................. 205992 .......................... .................................................... .......................... 0.0028 c 0.031 c63 Benzo(ghi)Perylene .................................................. 19124264 Benzo(k)Fluoranthene .............................................. 207089 .......................... .................................................... .......................... 0.0028 c 0.031 c65 Bis(2-Chloroethoxy)Methane .................................... 11191166 Bis(2-Chloroethyl)Ether ............................................ 111444 .......................... .......................... .......................... .......................... 0.031 ac 1.4 ac67 Bis(2-Chloroisopropyl)Ether ...................................... 108601 .......................... .......................... .......................... .......................... 1400 a 170000 a68 Bis(2-Ethylhexyl)Phthalate ........................................ 117817 .......................... .................................................... .......................... 1.8 ac 5.9 ac69 4-Bromophenyl Phenyl Ether ................................... 10155370 Butylbenzyl Phthalate ............................................... 8568771 2-Chloronaphthalene ................................................ 9158772 4-Chlorophenyl Phenyl Ether ................................... 700572373 Chrysene .................................................................. 218019 .......................... .......................... .......................... .......................... 0.0028 c 0.031 c74 Dibenzo(ah)Anthracene ............................................ 53703 .......................... .......................... .......................... .......................... 0.0028 c 0.031 c75 1,2-Dichlorobenzene ................................................. 95501 .......................... .......................... .......................... .......................... 2700 a 17000 a76 1,3-Dichlorobenzene ................................................. 541731 .......................... .......................... .......................... .......................... 400 260077 1,4-Dichlorobenzene ................................................. 106467 .......................... .......................... .......................... .......................... 400 260078 3,3′-Dichlorobenzidine .............................................. 91941 .......................... .......................... .......................... .......................... 0.04 ac 0.077 ac79 Diethyl Phthalate ...................................................... 84662 .......................... .......................... .......................... .......................... 23000 a 120000 a80 Dimethyl Phthalate ................................................... 131113 .......................... .......................... .......................... .......................... 313000 290000081 Di-n-Butyl Phthalate .................................................. 84742 .......................... .......................... .......................... .......................... 2700 a 12000 a82 2,4-Dinitrotoluene ..................................................... 121142 .......................... .......................... .......................... .......................... 0.11 c 9.1 c83 2,6-Dinitrotoluene ..................................................... 60620284 Di-n-Octyl Phthalate ................................................. 11784085 1,2-Diphenylhydrazine .............................................. 122667 .......................... .......................... .......................... .......................... 0.040 ac 0.54 ac86 Fluoranthene ............................................................. 206440 .......................... .......................... .......................... .......................... 300 a 370 a87 Fluorene .................................................................... 86737 .......................... .......................... .......................... .......................... 1300 a 14000 a88 Hexachlorobenzene .................................................. 118741 .......................... .......................... .......................... .......................... 0.00075 ac 0.00077 ac89 Hexachlorobutadiene ................................................ 87683 .......................... .................................................... .......................... 0.44 ac 50 ac


### 454 40 CFR Ch. I (7

– 1

– 08 Edition) § 131.36A BFreshwaterCSaltwaterDHuman Health(10¥6risk for carcinogens)For consumption of:(#) Compound CAS NumberCriterionMaximumConc.d(μg/L)(B1)CriterionContinuousConc.d(μg/L)(B2)CriterionMaximumConc.d(μg/L)(C1)CriterionContinuousConc.d(μg/L)(C2)Water &Organisms(μg/L)(D1)OrganismsOnly(μg/L)(D2)90 Hexachlorocyclopentadiene ...................................... 77474 .......................... .......................... .......................... .......................... 240 a 17000 aj91 Hexachloroethane ..................................................... 67721 .......................... .......................... .......................... .......................... 1.9 ac 8.9 ac92 Indeno(1,2,3-cd)Pyrene ............................................ 193395 .......................... .................................................... .......................... 0.0028 c 0.031 c93 Isophorone ................................................................ 78591 .......................... .......................... .......................... .......................... 8.4 ac 600 ac94 Naphthalene ............................................................. 9120395 Nitrobenzene ............................................................ 98953 .......................... .......................... .......................... .......................... 17 a 1900 aj96 N-Nitrosodimethylamine ........................................... 62759 .......................... .......................... .......................... .......................... 0.00069 ac 8.1 ac97 N-Nitrosodi-n-Propylamine ....................................... 62164798 N-Nitrosodiphenylamine ........................................... 86306 .......................... .......................... .......................... .......................... 5.0 ac 16 ac99 Phenanthrene ........................................................... 85018100 Pyrene ...................................................................... 129000 .......................... .......................... .......................... .......................... 960 a 11000 a101 1,2,4-Trichlorobenzene ............................................. 120821102 Aldrin ......................................................................... 309002 3 g .......................... 1.3 g .......................... 0.00013 ac 0.00014 ac103 alpha-BHC ................................................................ 319846 .......................... .......................... .......................... .......................... 0.0039 ac 0.013 ac104 beta-BHC .................................................................. 319857 .......................... .......................... .......................... .......................... 0.014 ac 0.046 ac105 gamma-BHC ............................................................. 58899 2 g 0.08 g 0.16 g .......................... 0.019 c 0.063 c106 delta-BHC ................................................................. 319868107 Chlordane ................................................................. 57749 2.4 g 0.0043 g 0.09 g 0.004 g 0.00057 ac 0.00059 ac108 4,4′-DDT ................................................................... 50293 1.1 g 0.001 g 0.13 g 0.001 g 0.00059 ac 0.00059 ac109 4,4′-DDE ................................................................... 72559 .......................... .......................... .......................... .......................... 0.00059 ac 0.00059 ac110 4,4′-DDD ................................................................... 72548 .......................... .......................... .......................... .......................... 0.00083 ac 0.00084 ac111 Dieldrin ...................................................................... 60571 2.5 g 0.0019 g 0.71 g 0.0019 g 0.00014 ac 0.00014 ac112 alpha-Endosulfan ...................................................... 959988 0.22 g 0.056 g 0.034 g 0.0087 g 0.93 a 2.0 a113 beta-Endosulfan ........................................................ 33213659 0.22 g 0.056 g 0.034 g 0.0087 g 0.93 a 2.0 a114 Endosulfan Sulfate ................................................... 1031078 .......................... .......................... .......................... .......................... 0.93 a 2.0 a115 Endrin ....................................................................... 72208 0.18 g 0.0023 g 0.037 g 0.0023 g 0.76 a 0.81 aj116 Endrin Aldehyde ....................................................... 7421934 .......................... .......................... .......................... .......................... 0.76 a 0.81 aj117 Heptachlor ................................................................ 76448 0.52 g 0.0038 g 0.053 g 0.0036 g 0.00021 ac0.00021 ac118 Heptachlor Epoxide .................................................. 1024573 0.52 g 0.0038 g 0.053 g 0.0036 g 0.00010 ac 0.00011 ac119 PCB–1242 ................................................................ 53469219 .......................... 0.014 g .......................... 0.03 g120 PCB–1254 ................................................................ 11097691 .......................... 0.014 g .......................... 0.03 g121 PCB–1221 ................................................................ 11104282 .......................... 0.014 g .......................... 0.03 g122 PCB–1232 ................................................................ 11141165 .......................... 0.014 g .......................... 0.03 g123 PCB–1248 ................................................................ 12672296 .......................... 0.014 g .......................... 0.03 g124 PCB–1260 ................................................................ 11096825 .......................... 0.014 g .......................... 0.03 g125a PCB–1016 ................................................................ 12674112 .......................... 0.014 g .......................... 0.03 g125b Polychlorinated biphenyls(PCBs) ................................................................... .......................... .......................... .......................... .......................... .......................... 0.00017 q 0.00017 q126 Toxaphene ................................................................ 8001352 0.73 0.0002 0.21 0.0002 0.00073 ac 0.00075acTotal Number of Criteria (h) = ............................... .......................... 24 29 23 27 85 84


### 455 Environmental Protection Agency § 131.36

F OOTNOTES
a. Criteria revised to reflect current agency q 1 * or RfD, as contained in the Integrated Risk Information System (IRIS). The fish tissue bioconcentration factor (BCF) from the 1980 criteria documents was retained in all cases.

b. The criteria refers to the inorganic form only.

c. Criteria in the matrix based on carcinogenicity (10

¥ 6 risk). For a risk level of 10

¥ 5

, move the decimal point in the matrix value one place to the right.

d. Criteria Maximum Concentration (CMC) = the highest concentration of a pollutant to which aquatic life can be exposed for a shortperiod of time (1-hour average) without deleterious effects. Criteria Continuous Concentration (CCC) = the highest concentration of a pollutant to which aquatic life can be exposed for an extended period of time (4 days) without deleterious effects. μ g/L = micrograms per liter.

e. Freshwater aquatic life criteria for these metals are expressed as a function of total hardness (mg/L as CaCO 3 ), the pollutant ’ s water effect ratio (WER) as defined in § 131.36(c) and multiplied by an appropriate dissolved conversion factor as defined in § 131.36(b)(2). For comparative purposes, the values displayed in this matrix are shown as dissolved metal and correspond to a total hardness of 100 mg/L and a water effect ratio of 1.0.

f. Freshwater aquatic life criteria forpentachlorophenol are expressed as a function of pH, and are calculated as follows.Values displayed above in the matrix correspond to a pH of 7.8. CMC = exp(1.005(pH)

¥ 4.830) CCC = exp(1.005(pH)

¥ 5.290)g. Aquatic life criteria for these compounds were issued in 1980 utilizing the 1980 Guidelines for criteria development. The acute values shown are final acute values(FAV) which by the 1980 Guidelines are instantaneous values as contrasted with a CMC which is a one-hour average.

h. These totals simply sum the criteria in each column. For aquatic life, there are 31 priority toxic pollutants with some type offreshwater or saltwater, acute or chronic criteria. For human health, there are 85 priority toxic pollutants with either ‘‘ water + fish ’’ or ‘‘ fish only ’’ criteria. Note that these totals count chromium as one pollutant even though EPA has developed criteria based on two valence states. In the matrix, EPA has assigned numbers 5a and 5b to the criteria for chromium to reflect the fact that the list of 126 priority toxic pollutants includes only a single listing for chromium.

i. If the CCC for total mercury exceeds 0.012 μ g/l more than once in a 3-year period in the ambient water, the edible portion of aquatic species of concern must be analyzed to determine whether the concentration of methyl mercury exceeds the FDA action level (1.0 mg/kg). If the FDA action level isexceeded, the State must notify the appropriate EPA Regional Administrator, initiate a revision of its mercury criterion in itswater quality standards so as to protect designated uses, and take other appropriate action such as issuance of a fish consumption advisory for the affected area.

j. No criteria for protection of humanhealth from consumption of aquatic organisms (excluding water) was presented in the 1980 criteria document or in the 1986 Quality Criteria for Water. Nevertheless, sufficientinformation was presented in the 1980 document to allow a calculation of a criterion, even though the results of such a calculation were not shown in the document.

k. The criterion for asbestos is the MCL (56 FR 3526, January 30, 1991).

l. [Reserved: This letter not used as a footnote.]

m. Criteria for these metals are expressed as a function of the water effect ratio, WER, as defined in 40 CFR 131.36(c).

CMC = column B1 or C1 value × WER CCC = column B2 or C2 value × WER n. EPA is not promulgating human healthcriteria for this contaminant. However, permit authorities should address this contaminant in NPDES permit actions using the State ’ s existing narrative criteria for toxics.

o. [Reserved: This letter not used as a footnote.]

p. Criterion expressed as total recoverable. q. This criterion applies to total PCBs ( e.g.,the sum of all congener or isomer or homolog or Aroclor analyses).

G ENERAL N OTES

1. This chart lists all of EPA ’ s prioritytoxic pollutants whether or not criteria recommendations are available. Blank spacesindicate the absence of criteria recommendations. Because of variations in chemical nomenclature systems, this listing of toxic pollutants does not duplicate the listing in Appendix A of 40 CFR Part 423. EPA has addedthe Chemical Abstracts Service (CAS) registry numbers, which provide a unique identification for each chemical.

2. The following chemicals have organoleptic based criteria recommendationsthat are not included on this chart (for reasons which are discussed in the preamble): copper, zinc, chlorobenzene, 2-chlorophenol, 2,4-dichlorophenol, acenaphthene, 2,4- dimethylphenol, 3-methyl-4-chlorophenol, hexachlorocyclopentadiene, pentachlorophenol, phenol.

3. For purposes of this rulemaking, freshwater criteria and saltwater criteria apply as specified in 40 CFR 131.36(c).

N OTE TO PARAGRAPH (b)(1): On April 14, 1995, the Environmental Protection Agency


### 456 40 CFR Ch. I (7

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issued a stay of certain criteria in paragraph (b)(1) of this section as follows: the criteria in columns B and C for arsenic, cadmium, chromium (VI), copper, lead, nickel, silver,and zinc; the criteria in B1 and C1 for mercury; the criteria in column B for chromium(III); and the criteria in column C for selenium. The stay remains in effect until further notice. (2) Factors for Calculating Hardness-Dependent, Freshwater Metals Criteria

CMC=WER exp { m A [ln(hardness)]+b A } ×

Acute Conversion Factor CCC=WER exp { m C [ln(hardness)]+b C } ×

Chronic Conversion Factor
Final CMC and CCC values should be rounded

to two significant figures.

Metal m A b A m C b C Freshwater conversion factors

Acute Chronic

Cadmium ............................................... 1.128

– 3.828 0.7852

– 3.490 a 0.944 a 0.909 Chromium (III) ....................................... 0.8190 3.688 0.8190 1.561 0.316 0.860 Copper .................................................. 0.9422

– 1.464 0.8545

– 1.465 0.960 0.960 Lead ...................................................... 1.273 -1.460 1.273

– 4.705 a 0.791 a 0.791 Nickel .................................................... 0.8460 3.3612 0.8460 1.1645 0.998 0.997 Silver ..................................................... 1.72

– 6.52 b N/A b N/A 0.85 b N/A Zinc ....................................................... 0.8473 0.8604 0.8473 0.7614 0.978 0.986

Note to table: The term ‘‘ exp ’’ represents the base e exponential function. Footnotes to table:

a The freshwater conversion factors (CF) for cadmium and lead are hardness-dependent and can be calculated for any hardness [see limitations in § 131.36(c)(4)] using the following equations:

Cadmium Acute: CF=1.136672

— [(ln hardness)(0.041838)] Chronic: CF=1.101672

— [(ln hardness)(0.041838)] Lead (Acute and Chronic): CF = 1.46203

— [(ln hardness)(0.145712)]

b No chronic criteria are available for silver.

(c) Applicability. (1) The criteria in paragraph (b) of this section apply to the States ’ designated uses cited in paragraph (d) of this section and supersede any criteria adopted by the State, except when State regulations contain criteria which are more stringent for a particular use in which case the State ’ s criteria will continue to apply.

(2) The criteria established in this section are subject to the State ’ s general rules of applicability in the same way and to the sameextent as are the other numeric toxics criteria when applied to the same use classifications including mixing zones, and low flow values below which numeric standards can be exceeded in flowing fresh waters.

(i) For all waters with mixing zone regulations or implementation procedures, the criteria apply at the appropriate locations within or at the boundary of the mixingzones; otherwise the criteria apply throughout the waterbody including at the end of any discharge pipe, canal or other discharge point.

(ii) A State shall not use a low flow valuebelow which numeric standards can be exceeded that is less stringent than the following for waters suitable for the establishment of low flow return frequencies (i.e., streams and rivers):

A QUATIC L IFE Acute criteria (CMC) 1 Q 10 or 1 B 3 Chronic criteria

(CCC) 7 Q 10 or 4 B 3

H UMAN H EALTH Non-carcinogens 30 Q 5 Carcinogens Harmonic mean flow

Where:

CMC

— criteria maximum concentration

— the

water quality criteria to protect against acute effects in aquatic life and is thehighest instream concentration of a priority toxic pollutant consisting of a onehour average not to be exceeded more than once every three years on the average; CCC

— criteria continuous concentration

— the

water quality criteria to protect againstchronic effects in aquatic life is the highest instream concentration of a prioritytoxic pollutant consisting of a 4-day average not to be exceeded more than once every three years on the average;1 Q 10 is the lowest one day flow with an average recurrence frequency of once in 10 years determined hydrologically; 1 B 3 is biologically based and indicates an

allowable exceedence of once every 3 years. It is determined by EPA ’ s computerized method (DFLOW model); 7 Q 10 is the lowest average 7 consecutive day

low flow with an average recurrence frequency of once in 10 years determined hydrologically; 4 B 3 is biologically based and indicates an

allowable exceedence for 4 consecutive days once every 3 years. It is determined by EPA ’ s computerized method (DFLOW model); 30 Q 5 is the lowest average 30 consecutive

day low flow with an average recurrence frequency of once in 5 years determined hydrologically; and the harmonic mean


### 457 Environmental Protection Agency § 131.36

flow is a long term mean flow value calculated by dividing the number of dailyflows analyzed by the sum of the reciprocals of those daily flows.

(iii) If a State does not have such a low flow value for numeric standards compliance, then none shall apply and the criteria included in paragraph (d) of this section herein apply at all flows.

(3) The aquatic life criteria in the matrix in paragraph (b) of this section apply as follows:

(i) For waters in which the salinity isequal to or less than 1 part per thousand 95% or more of the time, the applicable criteria are the freshwater criteria in Column B;

(ii) For waters in which the salinity is equal to or greater than 10 parts per thousand 95% or more of the time, the applicable criteria are the saltwater criteria in Column C; and

(iii) For waters in which the salinity is between 1 and 10 parts per thousand as defined in paragraphs (c)(3) (i) and(ii) of this section, the applicable criteria are the more stringent of thefreshwater or saltwater criteria. However, the Regional Administrator may approve the use of the alternativefreshwater or saltwater criteria if scientifically defensible information anddata demonstrate that on a site-specific basis the biology of the waterbody is dominated by freshwater aquatic life and that freshwater criteria are more appropriate; or conversely, the biologyof the waterbody is dominated by saltwater aquatic life and that saltwater criteria are more appropriate.

(4) Application of metals criteria. (i) For purposes of calculating freshwater aquatic life criteria for metals from the equations in paragraph (b)(2) ofthis section, the minimum hardness allowed for use in those equations shall not be less than 25 mg/l, as calcium carbonate, even if the actual ambient hardness is less than 25 mg/l as calcium carbonate. The maximum hardness value for use in those equations shallnot exceed 400 mg/l as calcium carbonate, even if the actual ambient hardness is greater than 400 mg/l ascalcium carbonate. The same provisions apply for calculating the metals criteria for the comparisons provided for in paragraph (c)(3)(iii) of this section.

(ii) The hardness values used shall be consistent with the design discharge conditions established in paragraph(c)(2) of this section for flows and mixing zones.

(iii) Except where otherwise noted, the criteria for metals (compounds #2, #4

– # 11, and #13, in paragraph (b) of this section) are expressed as dissolved metal. For purposes of calculating aquatic life criteria for metals fromthe equations in footnote m. in the criteria matrix in paragraph (b)(1) of thissection and the equations in paragraphs (b)(2) of this section, the watereffect ratio is computed as a specific pollutant ’ s acute or chronic toxicity values measured in water from the site covered by the standard, divided by the respective acute or chronic toxicity value in laboratory dilution water.

(d) Criteria for Specific Jurisdictions

— (1) Rhode Island, EPA Region 1. (i) All waters assigned to the following use classifications in the Water QualityRegulations for Water Pollution Control adopted under Chapters 46

– 12, 42

– 17.1, and 42

– 35 of the General Laws of Rhode Island are subject to the criteria in paragraph (d)(1)(ii) of this section, without exception:

6.21 Freshwater 6.22 Saltwater: Class A .................... Class SA Class B .................... Class SB Class C .................... Class SC

(ii) The following criteria from thematrix in paragraph (b)(1) of this section apply to the use classifications identified in paragraph (d)(1)(i) of this section:

Use classification Applicable criteria

Class A .................................. Class B waters where water

supply use is designated These classifications are assigned the criteria in Column D1

— #2, 68 Class B waters where water

supply use is not designated. Class C; Class SA; Class SB; Class SC Each of these classifications is assigned the criteria in: Column D2

— #2, 68

(iii) The human health criteria shall be applied at the 10

¥ 5 risk level, consistent with the State policy. To determine appropriate value for carcinogens, see footnote c in the criteria matrix in paragraph (b)(1) of this section.


### 458 40 CFR Ch. I (7

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(2) Vermont, EPA Region 1. (i) All waters assigned to the following use classifications in the Vermont Water Quality Standards adopted under the authority of the Vermont Water Pollution Control Act (10 V.S.A., Chapter 47) are subject to the criteria in paragraph(d)(2)(ii) of this section, without exception: Class A
Class B
Class C

(ii) The following criteria from thematrix in paragraph (b)(1) of this section apply to the use classifications identified in paragraph (d)(2)(i) of this section:

Use classification Applicable criteria

1. Classes A1, A2, B1, B2, B3 .................................................... These classification are assigned the criterio n in: Column B2

— #105.

(iii) The human health criteria shall be applied at the State-proposed 10

¥ 6 risk level.

(3) New Jersey, EPA Region 2. (i) All waters assigned to the following useclassifications in the New Jersey Administrative Code (N.J.A.C.) 7:9

– 4.1 et seq., Surface Water Quality Standards, are subject to the criteria in paragraph(d)(3)(ii) of this section, without exception.

N.J.A.C. 7:9

– 4.12(b): Class PL N.J.A.C. 7:9

– 4.12(c): Class FW2 N.J.A.C. 7:9

– 4.12(d): Class SE1 N.J.A.C. 7:9

– 4.12(e): Class SE2 N.J.A.C. 7:9

– 4.12(f): Class SE3 N.J.A.C. 7:9

– 4.12(g): Class SC N.J.A.C. 7:9

– 4.13(a): Delaware River Zones 1C, 1D, and 1E N.J.A.C. 7:9

– 4.13(b): Delaware River Zone 2 N.J.A.C. 7:9

– 4.13(c): Delaware River Zone 3 N.J.A.C. 7:9

– 4.13(d): Delaware River Zone 4 N.J.A.C. 7:9

– 4.13(e): Delaware River Zone 5 N.J.A.C. 7:9

– 4.13(f): Delaware River Zone 6

(ii) The following criteria from thematrix in paragraph (b)(1) of this section apply to the use classifications identified in paragraph (d)(3)(i) of this section:

Use classification Applicable criteria

1. Freshwater Pinelands, FW2 .................................................... These classifications are each assigned the cri teria in: i. Column B1

— #2, 4, 5a, 5b, 6

– 11, 13. ii. Column B2

— #2, 4, 5a, 5b, 6

– 10, 13. iii. Column D1

— #125b at a 10

¥ 6 risk level. iv. Column D2

— #125b at a 10

¥ 6 risk level. v. Column D2

— #23, 30, 37, 42, 87, 89, 93 and 105 at a 10

¥ 5

risk level. 2. PL (Saline Water Pinelands), SE1, SE2, SE3, SC, Delaware

Bay Zone 6. These classifications are each assigned the criteria in:

i. Column C1

— #2, 4, 5b, 6

– 11, 13. ii. Column C2

— #2, 4, 5b, 6

– 10, 13. iii. Column D1

— #125b at a 10

¥ 6 risk level. iv. Column D2

— #125b at a 10

¥ 6 risk level. v. Column D2

— #23, 30, 37, 42, 87, 89, 93 and 105 at a 10

¥ 5

risk level. 3. Delaware River Zones 1C, 1D, 1E, 2, 3, 4, and 5 ................. i. Column B1

— none. ii. Column B2

— none. iii. Column D1

— none. iv. Column D2

— none. 4. Delaware River Zones 3, 4, and 5 .......................................... These classifications are each assigned the criter ia in: i. Column C1

— none. ii. Column C2

— none. iii. Column D2

— none.

(iii) The human health criteria shall be applied at the State-proposed 10

¥ 6 risk level for EPA rated Class A, B 1 , and B 2 carcinogens; EPA rated Class C carcinogens shall be applied at 10

¥ 5 risk level. To determine appropriate value for carcinogens, see footnote c. in the matrix in paragraph (b)(1) of this section.

(4) Puerto Rico, EPA Region 2. (i) All waters assigned to the following use classifications in the Puerto Rico


### 459 Environmental Protection Agency § 131.36

Water Quality Standards (promulgated by Resolution Number R

– 83

– 5

– 2) are subject to the criteria in paragraph(d)(4)(ii) of this section, without exception.

Article 2.2.2

— Class SB Article 2.2.3

— Class SC Article 2.2.4

— Class SD

(ii) The following criteria from thematrix in paragraph (b)(1) of this section apply to the use classifications identified in paragraph (d)(4)(i) of this section:

Use classification Applicable criteria

Class SD ...................................................................................... Column B1

— # 118. Column B2

— #s 8, 105, 115, 118, 119, 120, 121, 122, 123,124,

125a, 125b. Column D1

— #s 12, 16, 27, 60, 61, 62, 64, 73, 74, 92, 93, 103,

104, 114, 116, 118, 119, 120, 121, 122, 123, 124, 125a, 125b. Class SB, Class SC .................................................................... Column C1

— #s 5b, 112, 113, 118. Column C2

— #s 5b, 8, 112, 113, 118, 119, 120, 121, 122, 123,

124, 125a, 125b. Column D2

— #s 12, 16, 27, 60, 61, 62, 64, 73, 74, 87, 92, 93,

103, 104, 114, 116, 118, 119, 120, 121, 122, 123, 124, 125a, 125b.

(iii) The human health criteria shall be applied at the State-proposed 10

¥ 5 risk level. To determine appropriate value for carcinogens, see footnote c, in the criteria matrix in paragraph (b)(1) of this section.

(5) District of Columbia, EPA Region 3. (i) All waters assigned to the following use classifications in chapter 11 Title 21 DCMR, Water Quality Standards of the District of Columbia are subject to the criteria in paragraph (d)(5)(ii) of this section, without exception:

1101.2 Class C waters

(ii) The following criteria from thematrix in paragraph (b)(1) of this section apply to the use classification identified in paragraph (d)(5)(i) of this section:

Use classification Applicable criteria

1. Class C .................................................................................... This classification is assigned t he additional criteria in: Column B2; #10, 118, 126.

(iii) The human health criteria shall be applied at the State-adopted 10

¥ 6 risk level.

(6) Florida, EPA Region 4. (i) All waters assigned to the following use classifications in Chapter 17

– 301 of theFlorida Administrative Code (i.e., identified in Section 17

– 302.600) are subject to the criteria in paragraph (d)(6)(ii) of this section, without exception: Class I
Class II
Class III

(ii) The following criteria from the matrix paragraph (b)(1) of this sectionapply to the use classifications identified in paragraph (d)(6)(i) of this section:

Use classification Applicable criteria

Class I .......................................................................................... This classification is assigne d the criteria in:
Column D1

— #16
Class II ......................................................................................... Class III (marine) ......................................................................... This classification is assigned the criteria in:

Column D2

— #16 Class III (freshwater) ................................................................... This classification is assigned the cr iteria in:
Column D2

— #16


### 460 40 CFR Ch. I (7

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(iii) The human health criteria shall be applied at the State-adopted 10

¥ 6 risk level.

(7)

– (8) [Reserved] (9) Kansas, EPA Region 7. (i) All waters assigned to the following use classification in the Kansas Department of Health and Environment regulations, K.A.R. 28

– 16

– 28b through K.A.R. 28

– 16

–28f, are subject to the criteria in paragraph (d)(9)(ii) of this section, without exception. Section (2)(A)

— Special Aquatic Life Use Waters Section (2)(B)

— Expected Aquatic Life Use Waters Section (2)(C)

— Restricted Aquatic Life Use Waters Section (3)

— Domestic Water Supply. Section (4)

— Food Procurement Use.

(ii) The following criteria from thematrix in paragraph (b)(1) of this section apply to the use classifications identified in paragraph (d)(9)(i) of this section:

Use classification Applicable criteria

1. Sections (2)(A), (2)(B), (2)(C), (4) ........................................... These classifications are each assigned crite ria as follows: i. Column B1, #2. ii. Column D2, #12, 21, 29, 39, 46, 68, 79, 81, 86, 93, 104,

114, 118. 2. Section (3) ............................................................................... This classification is assigned al l criteria in: Column D1, all except #1, 9, 12, 14, 15, 17, 22, 33, 36, 39, 44,

75, 77, 79, 90, 112, 113, and 115.

(iii) The human health criteria shall be applied at the State-adopted 10

¥ 6 risk level.

(10) California, EPA Region 9. (i) All waters assigned any aquatic life or human health use classifications in the Water Quality Control Plans for the various Basins of the State ( ‘‘ Basin Plans ’’ ), as amended, adopted by theCalifornia State Water Resources Control Board ( ‘‘ SWRCB ’’ ), except for ocean waters covered by the Water Quality Control Plan for Ocean Waters of California ( ‘‘ Ocean Plan ’’ ) adopted by the SWRCB with resolution Number 90

– 27 on March 22, 1990, are subject to the criteria in paragraph (d)(10)(ii) of this section, without exception. Thesecriteria amend the portions of the existing State standards contained in the Basin Plans. More particularly these criteria amend water quality criteria contained in the Basin Plan Chapters specifying water quality objectives (the State equivalent of federal waterquality criteria) for the toxic pollutants identified in paragraph (d)(10)(ii) of this section. Although the State has adopted several use designations for each of these waters, for purposes of this action, the specific standards to be applied in paragraph (d)(10)(ii) of this section are based on the presence in all waters of some aquatic life designation and the presence or absence of the MUN use designation (Municipal and domestic supply). (See Basin Plans for more detailed use definitions.)

(ii) The following criteria from thematrix in paragraph (b)(1) of this section apply to the water and use classifications defined in paragraph (d)(10)(i) of this section and identified below:

Water and use classification Applicable criteria

Waters of the State defined as bays or estuaries except the

Sacramento-San Joaquin Delta and San Francisco Bay These waters are assigned the criteria in:

Column B1

— pollutants 5a

and 14
Column B2

— pollutants 5a

and 14
Column C1

— pollutant 14
Column C2

— pollutant 14
Column D2

— pollutants 1,

12, 17, 18, 21, 22, 29, 30, 32, 33, 37, 38, 42

– 44, 46, 48, 49, 54, 59, 66, 67, 68, 78

– 82, 85, 89, 90, 91, 93, 95, 96, 98


### 461 Environmental Protection Agency § 131.36

Water and use classification Applicable criteria

Waters of the Sacramento

— San Joaquin Delta and waters of

the State defined as inland (i.e., all surface waters of the State not bays or estuaries or ocean) that include a MUN use designation These waters are assigned the criteria in:

Column B1

— pollutants 5a

and 14 Column B2

— pollutants 5a

and 14 Column D1

— pollutants 1,

12, 15, 17, 18, 21, 22, 29, 30, 32, 33, 37, 38, 42

– 48, 49, 59, 66, 67, 68, 78

– 82, 85, 89, 90, 91, 93, 95, 96, 98
Waters of the State defined as inland without an MUN use

designation These waters are assigned the criteria in:

Column B1

— pollutants 5a

and 14
Column B2

— pollutants 5a

and 14
Column D2

— pollutants 1,

12, 17, 18, 21, 22, 29, 30, 32, 33, 37, 38, 42

– 44, 46, 48, 49, 54, 59, 66, 67, 68, 78

– 82, 85, 89, 90, 91, 93, 95, 96, 98 Waters of the San Joaquin River from the mouth of the

Merced River to Vernalis In addition to the criteria assigned to these waters elsewhere in this rule, these waters are assigned the criteria in:

Column B2

— pollutant 10Waters of Salt Slough, Mud Slough (north) and the San Joaquin River, Sack Dam to the mouth of the Merced River In addition to the criteria assigned to these waters elsewhere in this rule, these waters are assigned the criteria in:

Column B1

— pollutant 10
Column B2

— pollutant 10 Waters of San Francisco Bay upstream to and including

Suisun Bay and the Sacramento-San Joaquin Delta These waters are assigned the criteria in:

Column B1

— pollutants 5a,

10* and 14
Column B2

— pollutants 5a,

10* and 14
Column C1

— pollutant 14
Column C2

— pollutant 14
Column D2

— pollutants 1,

12, 17, 18, 21, 22, 29, 30, 32, 33, 37, 38, 42

– 44, 46, 48, 49, 54, 59, 66, 67, 68, 78

– 82, 85, 89, 90, 91, 93, 95, 96, 98 All inland waters of the United States or enclosed bays and

estuaries that are waters of the United States that includean MUN use designation and that the State has either excluded or partially excluded from coverage under its WaterQuality Control Plan for Inland Surface Waters of California, Tables 1 and 2, or its Water Quality Control Plan for Enclosed Bays and Estuaries of California, Tables 1 and 2, or has deferred applicability of those tables. (Category (a), (b), and (c) waters described on page 6 of Water Quality Control Plan for Inland Surface Waters of California or page 6 of its Water Quality Control Plan for Enclosed Bays and Estuaries of California.) These waters are assigned the criteria for pollutants for which the State does notapply Table 1 or 2 standards. These criteria are:

Column B1

— all pollutants Column B2

— all pollutants Column D1

— all pollutants

except #2


### 462 40 CFR Ch. I (7

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Water and use classification Applicable criteria

All inland waters of the United States that do not include an

MUN use designation and that the State has either excluded or partially excluded from coverage under its WaterQuality Control Plan for Inland Surface Waters of California, Tables 1 and 2, or has deferred applicability of these tables. (Category (a), (b), and (c) waters described on page 6 of Water Quality Control Plan for Inland Surface Waters of California.) These waters are assigned the criteria for pollutants for which the State does notapply Table 1 or 2 standards. These criteria are:

Column B1

— all pollutants Column B2

— all pollutants Column D2

— all pollutants

except #2 All enclosed bays and estuaries that are waters of the United

States that do not include an MUN designation and that the State has either excluded or partially excluded from coverage under its Water Quality Control Plan for Inland Surface Waters of California, Tables 1 and 2, or its Water Quality Control Plan for Enclosed Bays and Estuaries of California, Tables 1 and 2, or has deferred applicability of those tables. (Category (a), (b), and (c) waters described on page 6 of Water Quality Control Plan for Inland Surface Waters of California or page 6 of its Water Quality Control Plan for Enclosed Bays and Estuaries of California.) These waters are assigned the criteria for pollutants for which the State does notapply Table 1 or 2 standards. These criteria are:

Column B1

— all pollutants Column B2

— all pollutants Column C1

— all pollutants Column C2

— all pollutants Column D2

— all pollutants

except #2 *The fresh water selenium criteria are included for the San Francisco Bay estuary becausehigh levels of bioaccumulation of selenium in the estuary indicate that the salt water criteria are underprotective for San Francisco Bay.

(iii) The human health criteria shall be applied at the State-adopted 10

¥ 6 risk level.

(11) Nevada, EPA Region 9. (i) All waters assigned the use classifications inChapter 445 of the Nevada Administrative Code (NAC), Nevada Water Pollution Control Regulations, which are referred to in paragraph (d)(11)(ii) of this section, are subject to the criteria in paragraph (d)(11)(ii) of this section, without exception. These criteria amend the existing State standards contained in the Nevada Water Pollution Control Regulations. More particularly, these criteria amend or supplement the table of numeric standards in NAC 445.1339 for the toxic pollutants identified in paragraph (d)(11)(ii) of this section.

(ii) The following criteria from matrix in paragraph (b)(1) of this sectionapply to the waters defined in paragraph (d)(11)(i) of this section and identified below:

Water and use classification Applicable criteria

Waters that the State has included in NAC

445.1339 where Municipal or domestic supply is a designated use These waters are assigned the criteria in: Column B1

— pollutant #118 Column B2

— pollutant #118 Column D1

— pollutants #15, 16, 18, 19, 20,

21, 23, 26, 27, 29, 30, 34, 37, 38, 42, 43, 55, 58

– 62, 64, 66, 73, 74, 78, 82, 85, 87

– 89, 91, 92, 96, 98, 100, 103, 104, 105, 114, 116, 117, 118 Waters that the State has included in NAC

445.1339 where Municipal or domestic supply is not a designated use These waters are assigned the criteria in: Column B1

— pollutant #118 Column B2

— pollutant #118 Column D2

— all pollutants except #2.

(iii) The human health criteria shall be applied at the 10

¥ 5 risk level, consistent with State policy. To determine appropriate value for carcinogens, see footnote c in the criteria matrix in paragraph (b)(1) of this section. (12) Alaska, EPA Region 10. (i) All waters assigned to the following use classifications in the Alaska Administrative Code (AAC), Chapter 18 (i.e., identified in 18 AAC 70.020) are subject to the criteria in paragraph (d)(12)(ii) of this section, without exception:


### 463 Environmental Protection Agency § 131.37

70.020.(1) (A) Fresh Water 70.020.(1) (A) Water Supply

(i) Drinking, culinary, and food processing, (iii) Aquaculture; 70.020.(1) (B) Water Recreation

(i) Contact recreation, (ii) Secondary recreation; 70.020.(1) (C) Growth and propagation of fish, shellfish, other aquatic life, and wildlife 70.020.(2) (A) Marine Water 70.020.(2) (A) Water Supply

(i) Aquaculture, 70.020.(2) (B) Water Recreation (i) contact recreation, (ii) secondary recreation; 70.020.(2) (C) Growth and propagation of fish, shellfish, other aquatic life, and wildlife; 70.020.(2) (D) Harvesting for consumption of raw mollusks or other raw aquatic life.
(ii) The following criteria from thematrix in paragraph (b)(1) of this section apply to the use classifications identified in paragraph (d)(12)(i) of this section:

Use classification Applicable criteria

(1)(A)(i) ........................................................................................ Column D1

— #s 16, 18

– 21, 23, 26, 27, 29, 30, 32, 37, 38, 42

– 44, 53, 55, 59

– 62, 64, 66, 68, 73, 74, 78, 82, 85, 88, 89, 91

– 93, 96, 98, 102

– 105, 107

– 111, 117

– 126. (1)(A)(iii) ....................................................................................... Column D2

— #s 14, 16, 18

– 21, 22, 23, 26, 27, 29, 30, 32, 37, 38, 42

– 44, 46, 53, 54, 55, 59

– 62, 64, 66, 68, 73, 74, 78, 82, 85, 88

– 93, 95, 96, 98, 102

– 105, 107

– 111, 115

– 126. (1)(B)(i), (1)(B)(ii), (1)(C) ............................................................. Column D2

— #s 14, 16, 18

– 21, 22, 23, 26, 27, 29, 30, 32, 37, 38, 42

– 44, 46, 53, 54, 55, 59

– 62, 64, 66, 68, 73, 74, 78, 82, 85, 88

– 93, 95, 96, 98, 102

– 105, 107

– 111, 115

– 126. (2)(A)(i), (2)(B)(i), and (2)(B)ii, (2)(C), (2)(D) .............................. Column D2

— #s 14, 16, 18

– 21, 22, 23, 26, 27, 29, 30, 32, 37, 38, 42

– 44, 46, 53, 54, 55, 59

– 62, 64, 66, 68, 73, 74, 78, 82, 85, 88

– 93, 95, 96, 98, 102

– 105, 107

– 111, 115

– 126.

(iii) The human health criteria shall be applied at the State-proposed risk level of 10

¥ 5 . To determine appropriate value for carcinogens, see footnote c in the criteria matrix in paragraph (b)(1) of this section.

(13) [Reserved] (14) Washington, EPA Region 10. (i) All waters assigned to the following useclassifications in the Washington Administrative Code (WAC), Chapter 173

– 201 (i.e., identified in WAC 173

– 201

– 045) are subject to the criteria in paragraph (d)(14)(ii) of this section, without exception:

173

– 201

– 045

Fish and Shellfish
Fish Water Supply (domestic)
Recreation

(ii) The following criteria from thematrix in paragraph (b)(1) of this section apply to the use classifications identified in paragraph (d)(14)(i) of this section:

Use classification Applicable criteria

Fish and Shellfish; Fish ............................................................... These classifications are assigned the c riteria in: Column D2

— all. Water Supply (domestic) ............................................................. These classifications are assigned the crit eria in: Column D1

— all. Recreation ................................................................................... This classification is assigned th e criteria in: Column D2

— Marine waters and freshwaters not protected for domestic water supply.

(iii) The human health criteria shall be applied at the State proposed risk level of 10

¥ 6

. [57 FR 60910, Dec. 22, 1992]

E DITORIAL N OTE : For F EDERAL R EGISTER citations affecting § 131.36, see the List of CFR Sections Affected, which appears in the Finding Aids section of the printed volume
and on GPO Access. § 131.37 California.
(a) Additional criteria. The followingcriteria are applicable to waters specified in the Water Quality Control Plan for Salinity for the San Francisco Bay/Sacramento-San Joaquin Delta Estuary, adopted by the California State Water Resources Control Board in State Board Resolution No. 91

– 34 on May 1, 1991:


### 464 40 CFR Ch. I (7

– 1

– 08 Edition) § 131.37

(1) Estuarine habitat criteria. (i) General rule. (A) Salinity (measured at the surface) shall not exceed 2640micromhos/centimeter specific conductance at 25 ° C (measured as a 14-day moving average) at the Confluence ofthe Sacramento and San Joaquin Rivers throughout the period each year from February 1 through June 30, andshall not exceed 2640 micromhos/centimeter specific conductance at 25 ° C (measured as a 14-day moving average) at the specific locations noted in Table 1 near Roe Island and Chipps Island for the number of days each month in the February 1 to June 30 period computed by reference to the following formula:
Number of days required in Month X =

Total number of days in Month × * (1

¥ 1/(1+e K ) where

K = A + (B*natural logarithm of the previous

month ’ s 8-River Index); A and B are determined by reference to

Table 1 for the Roe Island and Chipps Island locations; x is the calendar month in the February 1 to

June 30 period;and e is the base of the natural (or Napierian) logarithm.

Where the number of days computed in this equation in paragraph (a)(1)(i)(A) of this section shall be rounded to the nearest whole number of days. When the previous month ’ s 8-River Index is less than 500,000 acre-feet, the number of days required for the current month shall be zero.

T ABLE 1. C ONSTANTS APPLICABLE TO EACH OF THE MONTHLY EQUATIONS TO DETERMINE MONTHLY
REQUIREMENTS DESCRIBED

.

Month X Chipps Island Roe Island (if triggered)

A B A B

Feb ........................................................................................

¥ 1

¥ 1

¥ 14.36 +2.068 Mar ........................................................................................

¥ 105.16 +15.943

¥ 20.79 +2.741 Apr .........................................................................................

¥ 47.17 +6.441

¥ 28.73 +3.783 May ........................................................................................

¥ 94.93 +13.662

¥ 54.22 +6.571 June .......................................................................................

¥ 81.00 +9.961

¥ 92.584 +10.699

1 Coefficients for A and B are not provided at Chipps Island for February, because the 2640 micromhos/cm specific conductance criteria must be maintained at Chipps Island throughout February under all historical 8-River Index values for January.

(B) The Roe Island criteria apply atthe salinity measuring station maintained by the U.S. Bureau of Reclamation at Port Chicago (km 64). TheChipps Island criteria apply at the Mallard Slough Monitoring Site, Station D

– 10 (RKI RSAC

– 075) maintained by the California Department of Water Resources. The Confluence criteria apply at the Collinsville Continuous Monitoring Station C

– 2 (RKI RSAC

–081) maintained by the California Department of Water Resources.

(ii) Exception. The criteria at Roe Island shall be required for any givenmonth only if the 14-day moving average salinity at Roe Island falls below 2640 micromhos/centimeter specific conductance on any of the last 14 days of the previous month.

(2) Fish migration criteria

— (i) General rule

— (A) Sacramento River. Measured Fish Migration criteria values for the Sacramento River shall be at least the following: At temperatures less than below 61 ° F: SRFMC = 1.35 At temperatures between 61 ° F and 72

° F: SRFMC = 6.96

– .092 * Fahrenheit temperature At temperatures greater than 72 ° F:

SRFMC = 0.34

where SRFMC is the Sacramento RiverFish Migration criteria value. Temperature shall be the water temperature at release of tagged salmon smolts into the Sacramento River at Miller Park.

(B) San Joaquin River. Measured Fish Migration criteria values on the SanJoaquin River shall be at least the following:

For years in which the SJVIndex is

>2.5: SJFMC = (

¥ 0.012) + 0.184*SJVIndex In other years: SJFMC = 0.205 +

0.0975*SJVIndex


### 465 Environmental Protection Agency § 131.37

where SJFMC is the San Joaquin River Fish Migration criteria value, and SJVIndex is the San Joaquin Valley Index in million acre feet (MAF)

(ii) Computing fish migration criteria values for Sacramento River. In order to assess fish migration criteria values for the Sacramento River, tagged fall-run salmon smolts will be released into the Sacramento River at Miller Park andcaptured at Chipps Island, or alternatively released at Miller Park and Port Chicago and recovered from the ocean fishery, using the methodology described in this paragraph (a)(2)(ii).An alternative methodology for computing fish migration criteria values can be used so long as the revised methodology is calibrated with themethodology described in this paragraph (a)(2)(ii) so as to maintain the validity of the relative index values. Sufficient releases shall be made each year to provide a statistically reliableverification of compliance with the criteria. These criteria will be consideredattained when the sum of the differences between the measured experimental value and the stated criteriavalue (i.e., measured value minus stated value) for each experimental release conducted over a three year period (the current year and the previous two years) shall be greater than or equal to zero. Fish for release are to be tagged at the hatchery with coded-wire tags, and fin clipped. Approximately 50,000 to 100,000 fish of smolt size (size greaterthan 75 mm) are released for each survival index estimate, depending on expected mortality. As a control for the ocean recovery survival index, one or two groups per season are released atBenecia or Pt. Chicago. From each upstream release of tagged fish, fish are to be caught over a period of one to two weeks at Chipps Island. Daylight sampling at Chipps Island with a 9.1 by 7.9 m, 3.2 mm cod end, midwater trawl is begun 2 to 3 days after release. Whenthe first fish is caught, full-time trawling 7 days a week should begin. Each day ’ s trawling consists of ten 20 minute tows generally made against the current, and distributed equally across the channel.

(A) The Chipps Island smolt survival index is calculated as:

SSI=R ÷ MT(0.007692) where R=number of recaptures of tagged fish M=number of marked (tagged) fish released T=proportion of time sampled vs total time

tagged fish were passing the site (i.e. time between first and last tagged fish recovery)

Where the value 0.007692 is the proportion of the channel width fished by the trawl, and is calculated as trawl width/ channel width.

(B) Recoveries of tagged fish from the ocean salmon fishery two to fouryears after release are also used to calculate a survival index for each release. Smolt survival indices from ocean recoveries are calculated as:

OSI=R 1 /M 1 ÷ R 2 /M 2

where

R 1 =number of tagged adults recovered from

the upstream release M 1 =number released upstream R 2 =number of tagged adults recovered from

the Port Chicago release
M 2 =number released at Port Chicago

( 1 ) The number of tagged adults recovered from the ocean fishery is provided by the Pacific States MarineFisheries Commission, which maintains a port sampling program.

( 2 ) [Reserved] (iii) Computing fish migration criteria values for San Joaquin River. In order to assess annual fish migration criteria values for the San Joaquin River, tagged salmon smolts will be released into the San Joaquin River at Mossdaleand captured at Chipps Island, or alternatively released at Mossdale and Port Chicago and recovered from the oceanfishery, using the methodology described in paragraph (a)(2)(iii). An alternative methodology for computing fish migration criteria values can beused so long as the revised methodology is calibrated with the methodology described below so as to maintain the validity of the relative index values. Sufficient releases shall bemade each year to provide a statistically reliable estimate of the SJFMCfor the year. These criteria will be considered attained when the sum of thedifferences between the measured experimental value and the stated criteria value (i.e., measured value minusstated value) for each experimental release conducted over a three year period (the current year and the previous


### 466 40 CFR Ch. I (7

– 1

– 08 Edition) § 131.37

two years) shall be greater than or equal to zero.

(A) Fish for release are to be tagged at the hatchery with coded-wire tags, and fin clipped. Approximately 50,000 to 100,000 fish of smolt size (size greaterthan 75 mm) are released for each survival index estimate, depending on expected mortality. As a control for the ocean recovery survival index, one or two groups per season are released atBenicia or Pt. Chicago. From each upstream release of tagged fish, fish are to be caught over a period of one to two weeks at Chipps Island. Daylight sampling at Chipps Island with a 9.1 by 7.9 m, 3.2 mm cod end, midwater trawl is begun 2 to 3 days after release. Whenthe first fish is caught, full-time trawling 7 days a week should begin. Each day ’ s trawling consists of ten 20 minute tows generally made against the current, and distributed equally across the channel.

(B) The Chipps Island smolt survival index is calculated as:

SSI=R ÷ MT(0.007692)

where
R=number of recaptures of tagged fish M=number of marked (tagged) fish released T=proportion of time sampled vs total time

tagged fish were passing the site (i.e. time between first and last tagged fish recovery)Where the value 0.007692 is the proportion of the channel width fished by the trawl, and is calculated as trawl width/ channel width.

(C) Recoveries of tagged fish from the ocean salmon fishery two to four years after release are also used to calculate a survival index for each release. Smolt survival indices from ocean recoveries are calculated as:

OSI=R 1 /M 1 ÷ R 2 /M 2 where

R 1 =number of tagged adults recovered from

the upstream release

M 1 =number released upstream

R 2 =number of tagged adults recovered from

the Port Chicago release

M 2 =number released at Port Chicago

( 1 ) The number of tagged adults recovered from the ocean fishery is provided by the Pacific States MarineFisheries Commission, which maintains a port sampling program.

( 2 ) [Reserved] (3) Suisun marsh criteria. (i) Water quality conditions sufficient to supporta natural gradient in species composition and wildlife habitat characteristicof a brackish marsh throughout all elevations of the tidal marshes bordering Suisun Bay shall be maintained. Water quality conditions shall be maintained so that none of the following occurs:Loss of diversity; conversion of brackish marsh to salt marsh; for animals, decreased population abundance of those species vulnerable to increasedmortality and loss of habitat from increased water salinity; or for plants,significant reduction in stature or percent cover from increased water or soilsalinity or other water quality parameters.

(ii) [Reserved] (b) Revised criteria. The following criteria are applicable to state waters specified in Table 1

– 1, at Section (C)(3) ( ‘‘ Striped Bass

— Salinity : 3. Prisoners Point

— Spawning) of the Water Quality Control Plan for Salinity for the San Francisco Bay

— Sacramento/San Joaquin Delta Estuary, adopted by theCalifornia State Water Resources Control Board in State Board Resolution No. 91

– 34 on May 1, 1991:


### 467 Environmental Protection Agency § 131.37

Location Sampling site Nos (I

– - A/RKI) Parameter Description Index type San Joaquin Valley Index Dates Values

San Joaquin

River at Jersey Point, San Andreas Landing, Prisoners Point, Buckley Cove, Rough andReady Island, Brandt Bridge, Mossdale, and Vernalis. D15/RSAN018, C4/RSAN032, D29/RSAN038, P8/RSAN056, -/RSAN062, C6/RSAN073, C7/RSAN087, C10/RSAN112 Specific .....Conductance. @ 25 ° C ... 14-day running average of

mean daily forthe period not

more than value shown, in mmhos. Not Applicable. >2.5 MAF April 1 to May 31. 0.44 micromhos.

San Joaquin

River at Jersey Point, San Andreas Landingand Prisoners Point. D15/RSAN018, C4/RSAN032, D29/RSAN038 SpecificConductance. 14-day running average of

mean daily forthe period not

more than value shown, in mmhos. Not Applicable. ≤ 2.5 MAF April 1 to May 31. 0.44 micromhos.

(c) Definitions. Terms used in paragraphs (a) and (b) of this section, shall be defined as follows:

(1) Water year. A water year is thetwelve calendar months beginning October 1.

(2) 8-River Index. The flow determinations are made and are published by the California Department of Water Resources in Bulletin 120. The 8-River Index shall be computed as the sum of flows at the following stations:

(i) Sacramento River at Band Bridge, near Red Bluff;

(ii) Feather River, total inflow to Oroville Reservoir;

(iii) Yuba River at Smartville; (iv) American River, total inflow to Folsom Reservoir;

(v) Stanislaus River, total inflow to New Melones Reservoir;

(vi) Tuolumne River, total inflow to Don Pedro Reservoir;

(vii) Merced River, total inflow to Exchequer Reservoir; and

(viii) San Joaquin River, total inflow to Millerton Lake.

(3) San Joaquin Valley Index. (i) The San Joaquin Valley Index is computed according to the following formula: I SJ =0.6X+0.2Y and 0.2Z

where

I SJ =San Joaquin Valley Index X=Current year ’ s April-July San Joaquin

Valley unimpaired runoff Y=Current year ’ s October-March San Joaquin Valley unimpaired runoff Z=Previous year ’ s index in MAF, not to exceed 0.9 MAF

(ii) Measuring San Joaquin Valley unimpaired runoff. San Joaquin Valley unimpaired runoff for the current water year is a forecast of the sum of the following locations: StanislausRiver, total flow to New Melones Reservoir; Tuolumne River, total inflow to Don Pedro Reservoir; Merced River, total flow to Exchequer Reservoir; San Joaquin River, total inflow to Millerton Lake.

(4) Salinity. Salinity is the total concentration of dissolved ions in water. Itshall be measured by specific conductance in accordance with the proceduresset forth in 40 CFR 136.3, Table 1B, Parameter 64.

[60 FR 4707, Jan. 24, 1995]


### 468 40 CFR Ch. I (7

– 1

– 08 Edition) § 131.38

§ 131.38 Establishment of numeric criteria for priority toxic pollutants for the State of California.
(a) Scope. This section promulgates criteria for priority toxic pollutants inthe State of California for inland surface waters and enclosed bays and estuaries. This section also contains a compliance schedule provision.

(b)(1) Criteria for Priority Toxic Pollutants in the State of California as described in the following table:


### 469 Environmental Protection Agency § 131.38


### 470 40 CFR Ch. I (7

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### 471 Environmental Protection Agency § 131.38

F OOTNOTES TO TABLE IN PARAGRAPH (b)(1):

a. Criteria revised to reflect the Agency q1* or RfD, as contained in the IntegratedRisk Information System (IRIS) as of October 1, 1996. The fish tissue bioconcentrationfactor (BCF) from the 1980 documents was retained in each case.

b. Criteria apply to California waters except for those waters subject to objectives in Tables III

– 2A and III

– 2B of the San Francisco Regional Water Quality Control Board ’ s(SFRWQCB) 1986 Basin Plan that were adopted by the SFRWQCB and the State Water Resources Control Board, approved by EPA, and which continue to apply. For copper and nickel, criteria apply to California waters except for waters south of Dumbarton Bridge in San Francisco Bay that are subject to the objectives in the SFRWQCB ’ s Basin Plan as amended by SFRWQCB Resolution R2

– 2002

– 0061, dated May 22, 2002, and approved by the State Water Resources Control Board. EPAapproved the aquatic life site-specific objectives on January 21, 2003. The copper and nickel aquatic life site-specific objectives contained in the amended Basin Plan apply
instead.

c. Criteria are based on carcinogenicity of 10 (-6) risk.

d. Criteria Maximum Concentration (CMC)equals the highest concentration of a pollutant to which aquatic life can be exposed fora short period of time without deleterious effects. Criteria Continuous Concentration (CCC) equals the highest concentration of apollutant to which aquatic life can be exposed for an extended period of time (4 days) without deleterious effects. ug/L equals micrograms per liter.

e. Freshwater aquatic life criteria for metals are expressed as a function of total hardness (mg/L) in the water body. The equations are provided in matrix at paragraph (b)(2) of this section. Values displayed above in the matrix correspond to a total hardness of 100 mg/l.

f. Freshwater aquatic life criteria forpentachlorophenol are expressed as a function of pH, and are calculated as follows:


### 472 40 CFR Ch. I (7

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– 08 Edition) § 131.38

Values displayed above in the matrix correspond to a pH of 7.8. CMC = exp(1.005(pH)

¥ 4.869). CCC = exp(1.005(pH)

¥ 5.134).

g. This criterion is based on 304(a) aquatic life criterion issued in 1980, and was issued in one of the following documents: Aldrin/ Dieldrin (EPA 440/5

– 80

– 019), Chlordane (EPA 440/5

– 80

– 027), DDT (EPA 440/5

– 80

– 038), Endosulfan (EPA 440/5

– 80

– 046), Endrin (EPA 440/5

– 80

– 047), Heptachlor (440/5

– 80

– 052), Hexachlorocyclohexane (EPA 440/5

– 80

– 054), Silver (EPA 440/5

– 80

– 071). The Minimum Data Requirements and derivation procedures were different in the 1980 Guidelines than in the 1985 Guidelines. For example, a ‘‘ CMC ’’ derived using the 1980 Guidelines was derived to be used as an instantaneous maximum. If assessment is to be done using an averaging period, the values given should be divided by 2 to obtain a value that is more comparable to a CMC derived using the 1985 Guidelines.

h. These totals simply sum the criteria in each column. For aquatic life, there are 23 priority toxic pollutants with some type offreshwater or saltwater, acute or chronic criteria. For human health, there are 92 priority toxic pollutants with either ‘‘ water + organism ’’ or ‘‘ organism only ’’ criteria. Notethat these totals count chromium as one pollutant even though EPA has developed criteria based on two valence states. In the matrix, EPA has assigned numbers 5a and 5b to the criteria for chromium to reflect the factthat the list of 126 priority pollutants includes only a single listing for chromium.

i. Criteria for these metals are expressed as a function of the water-effect ratio, WER, as defined in paragraph (c) of this section. CMC = column B1 or C1 value × WER; CCC = column B2 or C2 value × WER.

j. No criterion for protection of humanhealth from consumption of aquatic organisms (excluding water) was presented in the 1980 criteria document or in the 1986 Quality Criteria for Water. Nevertheless, sufficientinformation was presented in the 1980 document to allow a calculation of a criterion, even though the results of such a calculation were not shown in the document.

k. The CWA 304(a) criterion for asbestos is the MCL.

l. [Reserved] m. These freshwater and saltwater criteriafor metals are expressed in terms of the dissolved fraction of the metal in the water column. Criterion values were calculated by using EPA ’ s Clean Water Act 304(a) guidance values (described in the total recoverable fraction) and then applying the conversion factors in § 131.36(b)(1) and (2).

n. EPA is not promulgating human health criteria for these contaminants. However,permit authorities should address these contaminants in NPDES permit actions using the State ’ s existing narrative criteria for toxics. o. These criteria were promulgated for specific waters in California in the National Toxics Rule ( ‘‘ NTR ’’ ), at § 131.36. The specificwaters to which the NTR criteria apply include: Waters of the State defined as bays or estuaries and waters of the State defined as inland, i.e., all surface waters of the State not ocean waters. These waters specifically include the San Francisco Bay upstream toand including Suisun Bay and the Sacramento-San Joaquin Delta. This section does not apply instead of the NTR for this criterion.

p. A criterion of 20 ug/l was promulgated for specific waters in California in the NTRand was promulgated in the total recoverable form. The specific waters to which the NTR criterion applies include: Waters of theSan Francisco Bay upstream to and including Suisun Bay and the Sacramento-San Joaquin Delta; and waters of Salt Slough, Mud Slough (north) and the San Joaquin River, Sack Dam to the mouth of the Merced River. This section does not apply instead ofthe NTR for this criterion. The State of California adopted and EPA approved a site specific criterion for the San Joaquin River, mouth of Merced to Vernalis; therefore, this section does not apply to these waters.

q. This criterion is expressed in the totalrecoverable form. This criterion was promulgated for specific waters in California in theNTR and was promulgated in the total recoverable form. The specific waters to which the NTR criterion applies include: Waters of theSan Francisco Bay upstream to and including Suisun Bay and the Sacramento-San Joaquin Delta; and waters of Salt Slough, Mud Slough (north) and the San Joaquin River, Sack Dam to Vernalis. This criterion does not apply instead of the NTR for these waters. This criterion applies to additional waters of the United States in the State of California pursuant to 40 CFR 131.38(c). TheState of California adopted and EPA approved a site-specific criterion for the Grassland Water District, San Luis National Wildlife Refuge, and the Los Banos State Wildlife Refuge; therefore, this criterion does not apply to these waters.

r. These criteria were promulgated for specific waters in California in the NTR. The specific waters to which the NTR criteria apply include: Waters of the State defined asbays or estuaries including the San Francisco Bay upstream to and including Suisun Bay and the Sacramento-San Joaquin Delta. This section does not apply instead of the NTR for these criteria.

s. These criteria were promulgated for specific waters in California in the NTR. The specific waters to which the NTR criteria apply include: Waters of the Sacramento-SanJoaquin Delta and waters of the State defined as inland ( i.e., all surface waters of theState not bays or estuaries or ocean) that include a MUN use designation. This section


### 473 Environmental Protection Agency § 131.38

does not apply instead of the NTR for these criteria.

t. These criteria were promulgated for specific waters in California in the NTR. The specific waters to which the NTR criteria apply include: Waters of the State defined as bays and estuaries including San Francisco Bay upstream to and including Suisun Bay and the Sacramento-San Joaquin Delta; and waters of the State defined as inland (i.e., allsurface waters of the State not bays or estuaries or ocean) without a MUN use designation. This section does not apply instead of the NTR for these criteria.

u. PCBs are a class of chemicals which include aroclors 1242, 1254, 1221, 1232, 1248, 1260, and 1016, CAS numbers 53469219, 11097691, 11104282, 11141165, 12672296, 11096825, and12674112, respectively. The aquatic life criteria apply to the sum of this set of seven aroclors.

v. This criterion applies to total PCBs, e.g., the sum of all congener or isomer or homolog or aroclor analyses.

w. This criterion has been recalculated pursuant to the 1995 Updates: Water Quality Criteria Documents for the Protection of Aquatic Life in Ambient Water, Office of Water, EPA

– 820-B

– 96

– 001, September 1996.See also Great Lakes Water Quality Initiative Criteria Documents for the Protection of Aquatic Life in Ambient Water, Office of Water, EPA

– 80

– B

– 95

– 004, March 1995.

x. The State of California has adopted and EPA has approved site specific criteria for the Sacramento River (and tributaries) above Hamilton City; therefore, these criteria do not apply to these waters.

G ENERAL N OTES TO T ABLE IN P ARAGRAPH (b)(1)

1. The table in this paragraph (b)(1) lists all of EPA ’ s priority toxic pollutants whether or not criteria guidance are available.Blank spaces indicate the absence of national section 304(a) criteria guidance. Because of variations in chemical nomenclature systems, this listing of toxic pollutants does not duplicate the listing in Appendix A to 40 CFR Part 423

– 126 Priority Pollutants. EPA has added the Chemical AbstractsService (CAS) registry numbers, which provide a unique identification for each chemical.

2. The following chemicals haveorganoleptic-based criteria recommendations that are not included on this chart: zinc, 3-methyl-4-chlorophenol.

3. Freshwater and saltwater aquatic life criteria apply as specified in paragraph (c)(3) of this section.

(2) Factors for Calculating Metals Criteria. Final CMC and CCC values should be rounded to two significant figures.

(i) CMC = WER × ( Acute Conversion

Factor) × (exp { m A [1n ( hardness )]+ b A } ) (ii) CCC = WER × ( Chronic Conversion

Factor ) × (exp { m C [ln( hardness )]+ b C } ) (iii) Table 1 to paragraph (b)(2) of this

section:

Metal m A b A m C b C

Cadmium ....................................................................... 1 .128

¥ 3 .6867 0 .7852

¥ 2 .715 Copper ........................................................................... 0 .9422

¥ 1 .700 0 .8545

¥ 1 .702 Chromium (III) ............................................................... 0 .8190 3 .688 0 .8190 1 .561 Lead .............................................................................. 1 .273

¥ 1 .460 1 .273

¥ 4 .705 Nickel ............................................................................. 0 .8460 2 .255 0 .8460 0 .0584 Silver ............................................................................. 1 .72

¥ 6 .52 Zinc ................................................................................ 0 .8473 0 .884 0 .8473 0 .884

Note to Table 1: The term ‘‘ exp ’’ represents the base e exponential function.

(iv) Table 2 to paragraph (b)(2) of this section:

Metal Conversion factor (CF) for freshwater acute criteria CF for freshwater chronic

criteria CF for saltwater acute criteria CF a for saltwater chronic

criteria

Antimony ..................................................................... ( d ) ( d ) ( d ) ( d )
Arsenic ........................................................................ 1 .000 1 .000 1 .000 1 .000 Beryllium ...................................................................... ( d ) ( d ) ( d ) ( d ) Cadmium ..................................................................... b 0 .944 b 0 .909 0 .994 0 .994 Chromium (III) ............................................................. 0 .316 0 .860 ( d ) ( d ) Chromium (VI) ............................................................. 0 .982 0 .962 0 .993 0 .993 Copper ......................................................................... 0 .960 0 .960 0 .83 0 .83 Lead ............................................................................ b 0 .791 b 0 .791 0 .951 0 .951 Mercury ....................................................................... ............................ .....................

..... .......................... .......................... Nickel ........................................................................... 0 .998 0 .997 0 .990 0 .990 Selenium ..................................................................... ............................ ( c ) 0 .998 0 .998


### 474 40 CFR Ch. I (7

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Metal Conversion factor (CF) for freshwater acute criteria CF for freshwater chronic

criteria CF for saltwater acute criteria CF a for saltwater chronic

criteria

Silver ........................................................................... 0 .85 ( d ) 0 .85 ( d ) Thallium ....................................................................... ( d ) ( d ) ( d ) ( d ) Zinc .............................................................................. 0 .978 0 .986 0 .946 0 .946

F OOTNOTES TO T ABLE 2 OF P ARAGRAPH (b)(2):

a Conversion Factors for chronic marine criteria are not currently available. Conversion Factors for acute marine criteria have been used for both acute and chronic marine criteria.

b Conversion Factors for these pollutants in freshwater are hardness dependent. CFs are based on a hardness of 100 mg/l as calcium carbonate (CaCO 3 ). Other hardness can be used; CFs should be recalculated using the equations in table 3 to paragraph (b)(2) of this section.

c Bioaccumulative compound and inappropriate to adjust to percent dissolved.

d EPA has not published an aquatic life criterion value.

N OTE TO T ABLE 2 OF P ARAGRAPH (b)(2): The
term ‘‘ Conversion Factor ’’ represents therecommended conversion factor for converting a metal criterion expressed as thetotal recoverable fraction in the water column to a criterion expressed as the dissolved fraction in the water column. See ‘‘ Office ofWater Policy and Technical Guidance on Interpretation and Implementation of Aquatic Life Metals Criteria ’’ , October 1, 1993, byMartha G. Prothro, Acting Assistant Administrator for Water available from Water Resource Center, USEPA, Mailcode RC4100, M Street SW, Washington, DC 20460 and the
note to § 131.36(b)(1).

(v) Table 3 to paragraph (b)(2) of this section:

Acute Chronic

Cadmium ......................... CF=1.136672

— [(ln { hardness } ) (0.041838)] ....... CF = 1.101672

— [(ln { hardness } )(0.041838)] Lead ................................ CF=1.46203

— [(ln { hardness } )(0.145712)] .......... CF = 1.46203

— [(ln { hardness } )(0.145712)]

(c) Applicability. (1) The criteria in paragraph (b) of this section apply to the State ’ s designated uses cited in paragraph (d) of this section and apply concurrently with any criteria adoptedby the State, except when State regulations contain criteria which are more stringent for a particular parameterand use, or except as provided in footnotes p, q, and x to the table in paragraph (b)(1) of this section.

(2) The criteria established in this section are subject to the State ’ s general rules of applicability in the same way and to the same extent as areother Federally-adopted and Stateadopted numeric toxics criteria when applied to the same use classifications including mixing zones, and low flow values below which numeric standardscan be exceeded in flowing fresh waters.

(i) For all waters with mixing zoneregulations or implementation procedures, the criteria apply at the appropriate locations within or at theboundary of the mixing zones; otherwise the criteria apply throughout the water body including at the point of discharge into the water body. (ii) The State shall not use a low flow value below which numeric standards can be exceeded that is less stringent than the flows in Table 4 to paragraph (c)(2) of this section for streams and rivers.

(iii) Table 4 to paragraph (c)(2) of this section:

Criteria Design flow

Aquatic Life Acute Criteria

(CMC). 1 Q 10 or 1 B 3

Aquatic Life Chronic Criteria

(CCC). 7 Q 10 or 4 B 3

Human Health Criteria ........... Harmonic Mean Flow

N OTE TO TABLE 4 OF PARAGRAPH (c)(2): 1. CMC (Criteria Maximum Concentration) is the water quality criteria to protect againstacute effects in aquatic life and is the highest instream concentration of a priority toxic pollutant consisting of a short-term average not to be exceeded more than once every three years on the average.

2. CCC (Continuous Criteria Concentration) is the water quality criteria to protect against chronic effects in aquatic life and isthe highest in stream concentration of a priority toxic pollutant consisting of a 4-day average not to be exceeded more than once every three years on the average.

3. 1 Q 10 is the lowest one day flow with an average recurrence frequency of once in 10 years determined hydrologically.


### 475 Environmental Protection Agency § 131.38

4. 1 B 3 is biologically based and indicates an allowable exceedence of once every 3 years. It is determined by EPA ’ s computerized method (DFLOW model).

5. 7 Q 10 is the lowest average 7 consecutiveday low flow with an average recurrence frequency of once in 10 years determined hydrologically.

6. 4 B 3 is biologically based and indicates an allowable exceedence for 4 consecutive days once every 3 years. It is determined by EPA ’ s computerized method (DFLOW model).

(iv) If the State does not have such a low flow value below which numericstandards do not apply, then the criteria included in paragraph (d) of this section apply at all flows.

(v) If the CMC short-term averagingperiod, the CCC four-day averaging period, or once in three-year frequency is inappropriate for a criterion or the site to which a criterion applies, the State may apply to EPA for approval of analternative averaging period, frequency, and related design flow. The State must submit to EPA the bases for any alternative averaging period,frequency, and related design flow. Before approving any change, EPA willpublish for public comment, a document proposing the change.

(3) The freshwater and saltwater aquatic life criteria in the matrix in paragraph (b)(1) of this section apply as follows:

(i) For waters in which the salinity isequal to or less than 1 part per thousand 95% or more of the time, the applicable criteria are the freshwater criteria in Column B;

(ii) For waters in which the salinity is equal to or greater than 10 parts per thousand 95% or more of the time, the applicable criteria are the saltwatercriteria in Column C except for selenium in the San Francisco Bay estuary where the applicable criteria are the freshwater criteria in Column B (refer to footnotes p and q to the table in paragraph (b)(1) of this section); and

(iii) For waters in which the salinity is between 1 and 10 parts per thousand as defined in paragraphs (c)(3)(i) and(ii) of this section, the applicable criteria are the more stringent of thefreshwater or saltwater criteria. However, the Regional Administrator may approve the use of the alternativefreshwater or saltwater criteria if scientifically defensible information anddata demonstrate that on a site-specific basis the biology of the waterbody is dominated by freshwater aquatic life and that freshwater criteria are more appropriate; or conversely, the biology of the water body is dominatedby saltwater aquatic life and that saltwater criteria are more appropriate. Before approving any change, EPA willpublish for public comment a document proposing the change.

(4) Application of metals criteria. (i) For purposes of calculating freshwater aquatic life criteria for metals from the equations in paragraph (b)(2) of this section, for waters with a hardnessof 400 mg/l or less as calcium carbonate, the actual ambient hardness of the surface water shall be used in those equations. For waters with a hardness of over 400 mg/l as calcium carbonate, ahardness of 400 mg/l as calcium carbonate shall be used with a default Water-Effect Ratio (WER) of 1, or the actual hardness of the ambient surface water shall be used with a WER. The same provisions apply for calculating the metals criteria for the comparisons provided for in paragraph (c)(3)(iii) of this section.

(ii) The hardness values used shall be consistent with the design discharge conditions established in paragraph (c)(2) of this section for design flows and mixing zones.

(iii) The criteria for metals (compounds #1

— #13 in the table in paragraph (b)(1) of this section) are expressed as dissolved except where otherwise noted. For purposes of calculating aquatic life criteria for metals from the equations in footnote i to the table in paragraph (b)(1) of this section and the equations in paragraph (b)(2) of this section, the water effect ratio isgenerally computed as a specific pollutant ’ s acute or chronic toxicity valuemeasured in water from the site covered by the standard, divided by the respective acute or chronic toxicity value in laboratory dilution water. To use a water effect ratio other than thedefault of 1, the WER must be determined as set forth in Interim Guidanceon Determination and Use of Water Effect Ratios, U.S. EPA Office of Water,


### 476 40 CFR Ch. I (7

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EPA

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– 001, February 1994, or alternatively, other scientifically defensible methods adopted by the State aspart of its water quality standards program and approved by EPA. For calculation of criteria using site-specific values for both the hardness and the water effect ratio, the hardness used in the equations in paragraph (b)(2) ofthis section must be determined as required in paragraph (c)(4)(ii) of thissection. Water hardness must be calculated from the measured calcium and magnesium ions present, and the ratioof calcium to magnesium should be approximately the same in standard laboratory toxicity testing water as in the site water.

(d)(1) Except as specified in paragraph (d)(3) of this section, all waters assigned any aquatic life or human health use classifications in the Water Quality Control Plans for the various Basins of the State ( ‘‘ Basin Plans ’’ ) adopted by the California State Water Resources Control Board ( ‘‘ SWRCB ’’ ), except for ocean waters covered by the Water Quality Control Plan for Ocean Waters of California ( ‘‘ Ocean Plan ’’ ) adopted by the SWRCB with resolution Number 90

– 27 on March 22, 1990, are subject to the criteria in paragraph(d)(2) of this section, without exception. These criteria apply to watersidentified in the Basin Plans. More particularly, these criteria apply to waters identified in the Basin Plan chapters designating beneficial uses for waters within the region. Although theState has adopted several use designations for each of these waters, for purposes of this action, the specific standards to be applied in paragraph (d)(2) of this section are based on the presencein all waters of some aquatic life designation and the presence or absence of the MUN use designation (municipal and domestic supply). (See Basin Plans for more detailed use definitions.)

(2) The criteria from the table in paragraph (b)(1) of this section apply tothe water and use classifications defined in paragraph (d)(1) of this section as follows:



### Water and use classification Applicable criteria

(i) All inland waters of the United

States or enclosed bays and estuaries that are waters of the United States that include a MUN use designation. (A) Columns B1 and B2

— all pollutants (B) Columns C1 and C2

— all pollutants (C) Column D1

— all pollutants

(ii) All inland waters of the United

States or enclosed bays and estuaries that are waters of the United States that do not include a MUN use designation. (A) Columns B1 and B2

— all pollutants (B) Columns C1 and C2

— all pollutants (C) Column D2

— all pollutants

(3) Nothing in this section is intendedto apply instead of specific criteria, including specific criteria for the San Francisco Bay estuary, promulgated for California in the National Toxics Rule at § 131.36.

(4) The human health criteria shall be applied at the State-adopted 10 (

¥ 6) risk level.

(5) Nothing in this section applies to waters located in Indian Country.

(e) Schedules of compliance. (1) It is presumed that new and existing pointsource dischargers will promptly comply with any new or more restrictivewater quality-based effluent limitations ( ‘‘ WQBELs ’’ ) based on the waterquality criteria set forth in this section.

(2) When a permit issued on or afterMay 18, 2000 to a new discharger contains a WQBEL based on water quality criteria set forth in paragraph (b) ofthis section, the permittee shall comply with such WQBEL upon the commencement of the discharge. A new discharger is defined as any building, structure, facility, or installation from


### 477 Environmental Protection Agency § 131.38

which there is or may be a ‘‘ discharge of pollutants ’’ (as defined in 40 CFR 122.2) to the State of California ’ s inlandsurface waters or enclosed bays and estuaries, the construction of which commences after May 18, 2000.

(3) Where an existing discharger reasonably believes that it will be infeasible to promptly comply with a new or more restrictive WQBEL based on the water quality criteria set forth in thissection, the discharger may request approval from the permit issuing authority for a schedule of compliance.

(4) A compliance schedule shall require compliance with WQBELs based on water quality criteria set forth in paragraph (b) of this section as soon aspossible, taking into account the dischargers ’ technical ability to achieve compliance with such WQBEL.

(5) If the schedule of compliance exceeds one year from the date of permit issuance, reissuance or modification,the schedule shall set forth interim requirements and dates for their achievement. The dates of completion between each requirement may not exceed oneyear. If the time necessary for completion of any requirement is more than one year and is not readily divisible into stages for completion, the permit shall require, at a minimum, specified dates for annual submission of progressreports on the status of interim requirements.

(6) In no event shall the permit issuing authority approve a schedule ofcompliance for a point source discharge which exceeds five years from the date of permit issuance, reissuance, or modification, whichever is sooner. Where shorter schedules of complianceare prescribed or schedules of compliance are prohibited by law, those provisions shall govern. (7) If a schedule of compliance exceeds the term of a permit, interimpermit limits effective during the permit shall be included in the permit and addressed in the permit ’ s fact sheet or statement of basis. The administrative record for the permit shall reflect final permit limits and final compliance dates. Final compliance dates for finalpermit limits, which do not occur during the term of the permit, must occur within five years from the date of issuance, reissuance or modification ofthe permit which initiates the compliance schedule. Where shorter schedulesof compliance are prescribed or schedules of compliance are prohibited by law, those provisions shall govern.

(8) The provisions in this paragraph(e), Schedules of compliance, shall expire on May 18, 2005.

[65 FR 31711, May 18, 2000, as amended at 66 FR 9961, Feb. 13, 2001; 68 FR 62747, Nov. 6, 2003]

E DITORIAL N OTE : At 66 FR 9961, Feb. 13, 2001, § 131.38 was amended in the table to paragraph (b)(1) under the column heading for ‘‘ B Freshwater ’’ by revising the column headings for ‘‘ Criterion Maximum Concentration ’’ and ‘‘ Criterion Continuous Concentration ’’ ; under the column heading for

‘‘ C Saltwater ’’ by revising the column headings for ‘‘ Criterion Maximum Concentration ’’ and ‘‘ Criterion Continuous Concentration ’’ ; and by revising entries ‘‘ 23. ’’ and

‘‘ 67. ’’ , effective Feb. 13, 2001. However, this is a photographed table and the amendments could not be incorporated into the text. For the convenience of the user, the amended text is set forth as follows:

§ 131.38 Establishment of Numeric Criteria for priority toxic pollutants for the State of California.

* * * * *

(b)(1) * * *


### 478 40 CFR Ch. I (7

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– 08 Edition) § 131.38A BFreshwaterCSaltwaterDHuman health (10¥6) riskfor carcinogens)For consumption of:# Compound CASnumberCriterionmaximumconc. (μg/L)dB1Criterioncontinousconc. (μg/L)dB2Criterionmaximumconc. (μg/L)dC1Criterioncontiniousconc. (μg/L)dC2Water &organisms(μg/L)D1Organismsonly(μg/L)D2* * * * * * *23. Chlorodibromomethane ................................................. 124481 .................... .................... .................... ....................a,c0.41a,c34* * * * * * *67. Bis(2-Chloroisopropyl)Ether ........................................... 108601 .................... .................... .................... ....................a1,400a,t170,000* * * * * * *Footnotes to table in Paragraph (b)(1):* * * * * * *aCriteria revised to reflect the Agency q1* or RfD, as contained in the Integrated Risk Information System (IRIS) as of October1, 1996. The fish tissue bioconcentration factor (BCF) from the 1980 documents was retained in each case.cCriteria are based on carcinogenicity of 10¥6risk.dCriteria Maximum Concentration (CMC) equals the highest concentration of a pollutant to which aquatic life can be exposed for ashort period of time withoutdeleterious effects. Criteria Continuous Concentration (CCC) equals the highest concentration of a pollutant to which aquatic life can be exposed for an extendedperiod of time (4 days) without deleterious effects.μg/L equals micrograms per liter.* * * * * * *tThese criteria were promulgated for specific waters in California in the NTR. The specific waters to which the NTR criteria apply include: Waters of the Statedefined as bays and estuaries including San Francisco Bay upstream to and including Suisun Bay and the Sacramento-San Joaquin Delta; and waters of theState defined as inland (i.e., all surface waters of the State not bays or estuaries or ocean) without a MUN use designation. This section does not apply instead ofthe NTR for these criteria.


### 479 Environmental Protection Agency § 131.40

* * * * *

§ 131.40 Puerto Rico

(a) Use designations for marine waters. In addition to the Commonwealth ’ s adopted use designations, the following waterbodies in Puerto Rico have the beneficial use designated in this paragraph (a) within the bays specified below, and within the Commonwealth ’ s territorial seas, as defined in section 502(8) of the Clean Water Act, and 33 CFR 2.05

– 5, except such waters classified by the Commonwealth as SB.

Waterbody segment From To Designated use

Coastal Waters ........................ 500m offshore ........................ 3 miles offshore ..................... Primary Contact Recreation. Guayanilla & Tallaboa Bays .... Cayo Parguera ....................... Punta Verraco ........................ Primary Contact Recreati on. Mayaguez Bay ......................... Punta Guanajibo .................... Punta Algarrobo ..................... Primary Contact Rec reation. Ponce Port ............................... Punta Carenero ...................... Punta Cuchara ....................... Primary Contac t Recreation. San Juan Port .......................... mouth of Rı  ́ o Bayamo  ́ n .......... Punta El Morro ....................... Primary Contact Recreation. Yabucoa Port ........................... Punta Icacos .......................... Punta Yeguas ........................ Primary Contac t Recreation.

(b) Criteria that apply to Puerto Rico ’ s marine waters. In addition to all other Commonwealth criteria, the following criteria for bacteria apply to the waterbodies in paragraph (a) of this section:

Bacteria: The fecal coliform geometric mean of a series of representative samples (at least five samples) of the waters taken sequentially shall not exceed 200 colonies/100 ml, and not more than 20 percent of the samples shall exceed 400 colonies/100 ml. Theenterococci density in terms of geometric mean of at least five representative samples taken sequentially shall not exceed 35/100 ml. No single sample should exceed the upper confidencelimit of 75% using 0.7 as the log standard deviation until sufficient site data exist to establish a site-specific log standard deviation.

(c) Water quality standard variances. (1) The Regional Administrator, EPA Region 2, is authorized to grant variances from the water quality standards in paragraphs (a) and (b) of this section where the requirements of this paragraph (c) are met. A water quality standard variance applies onlyto the permittee requesting the variance and only to the pollutant or pollutants specified in the variance; theunderlying water quality standard otherwise remains in effect.

(2) A water quality standard variance shall not be granted if:

(i) Standards will be attained by implementing effluent limitations required under sections 301(b) and 306 ofthe CWA and by the permittee implementing reasonable best management practices for nonpoint source control;

or

(ii) The variance would likely jeopardize the continued existence of any threatened or endangered species listedunder section 4 of the Endangered Species Act or result in the destruction or adverse modification of such species ’ critical habitat.

(3) A water quality standards variance may be granted if the applicant demonstrates to EPA that attainingthe water quality standard is not feasible because:

(i) Naturally occurring pollutant concentrations prevent the attainment of the use;

(ii) Natural, ephemeral, intermittent or low flow conditions or water levelsprevent the attainment of the use, unless these conditions may be compensated for by the discharge of sufficient volume of effluent discharges without violating Commonwealthwater conservation requirements to enable uses to be met;

(iii) Human caused conditions orsources of pollution prevent the attainment of the use and cannot be remedied or would cause more environmental damage to correct than to leave in place;

(iv) Dams, diversions or other types of hydrologic modifications preclude the attainment of the use, and it is not feasible to restore the waterbody to its original condition or to operate suchmodification in a way which would result in the attainment of the use;

(v) Physical conditions related to the natural features of the waterbody, such as the lack of a proper substrate, cover, flow, depth, pools, riffles, and the like


### 480 40 CFR Ch. I (7

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unrelated to water quality, preclude attainment of aquatic life protection

uses; or

(vi) Controls more stringent than those required by sections 301(b) and306 of the CWA would result in substantial and widespread economic and social impact.

(4) Procedures. An applicant for a water quality standards variance shallsubmit a request to the Regional Administrator of EPA Region 2. The application shall include all relevant information showing that the requirements for a variance have been met. The applicant must demonstrate that the designated use is unattainable forone of the reasons specified in paragraph (c)(3) of this section. If the Regional Administrator preliminarily determines that grounds exist for granting a variance, he/she shall provide public notice of the proposed variance and provide an opportunity for public comment. Any activities required as acondition of the Regional Administrator ’ s granting of a variance shall be included as conditions of the NPDES permit for the applicant. These terms and conditions shall be incorporated into the applicant ’ s NPDES permit through the permit reissuance process or through a modification of the permit pursuant to the applicable permit modification provisions of Puerto Rico ’ s NPDES program.

(5) A variance may not exceed fiveyears or the term of the NPDES permit, whichever is less. A variance may be renewed if the applicant reappliesand demonstrates that the use in question is still not attainable. Renewal ofthe variance may be denied if the applicant did not comply with the conditions of the original variance, or otherwise does not meet the requirements of this section.

[69 FR 3524, Jan. 26, 2004]

§ 131.41 Bacteriological criteria for those states not complying with Clean Water Act section 303(i)(1)(A).

(a) Scope. This section is a promulgation of the Clean Water Act section 304(a) criteria for bacteria for coastal recreation waters in specific States. It is not a general promulgation of the Clean Water Act section 304(a) criteria for bacteria. This section also contains a compliance schedule provision.

(b) Definitions. (1) Coastal Recreation Waters are the Great Lakes and marinecoastal waters (including coastal estuaries) that are designated under section 303(c) of the Clean Water Act for use for swimming, bathing, surfing, orsimilar water contact activities. Coastal recreation waters do not include inland waters or waters upstream from the mouth of a river or stream having an unimpaired natural connection with the open sea.

(2) Designated bathing beach waters are those coastal recreation waters that,during the recreation season, are heavily-used (based upon an evaluation of use within the State) and may have: alifeguard, bathhouse facilities, or public parking for beach access. States may include any other waters in this category even if the waters do not meet these criteria.

(3) Moderate use coastal recreation waters are those coastal recreation waters that are not designated bathing beachwaters but typically, during the recreation season, are used by at least half of the number of people as at typicaldesignated bathing beach waters within the State. States may also include light use or infrequent use coastal recreation waters in this category.

(4) Light use coastal recreation waters are those coastal recreation waters that are not designated bathing beachwaters but typically, during the recreation season, are used by less than half of the number of people as at typicaldesignated bathing beach waters within the State, but are more than infrequently used. States may also includeinfrequent use coastal recreation waters in this category.

(5) Infrequent use coastal recreation
waters are those coastal recreation waters that are rarely or occasionally used.

(6) New pathogen discharger for the purposes of this section means anybuilding, structure, facility, or installation from which there is or may be adischarge of pathogens, the construction of which commenced on or after December 16, 2004. It does not include relocation of existing combined sewer overflow outfalls.


### 481 Environmental Protection Agency § 131.41

(7) Existing pathogen discharger for thepurposes of this section means any discharger that is not a new pathogen discharger. (c) EPA ’ s section 304(a) ambient water quality criteria for bacteria. (1) Freshwaters:

A Indicator d B Geometric mean C Single sample maximum (per 100 ml)

C1Designated bathing beach (75% confidence level) C2 Moderate use costal recreation waters (82% confidence level) C3 Light use coastal recreation waters (90% confidence level) C4 Infrequent use coastal recreation waters (95% confidence level)

E. coli e ..................... 126/100 mil a

........... b 235 b 298 b 409 b 575 Enterococci e ............ 33/100 ml c

.............. b 61 b 78 b 107 b 151

Footnotes to table in paragraph (c)(1): a. This value is for use with analytical methods 1103.1, 1603, or 1604 or any equivalent method that measures viable bacteria. b. Calculated using the following: single sample maximum = geometric mean * 10 ∧ (confidence level factor * log standard deviation), where the confidence level factor is: 75%: 0.68; 82%: 0.94; 90%: 1.28; 95%: 1.65. The log standard deviation from EPA ’ s epidemiological studies is 0.4.

c. This value is for use with analytical methods 1106.1 or 1600 or any equivalent method that measures viable bacteria. d. The State may determine which of these indicators applies to its freshwater coastal recreation waters. Until a State makes that determination, E. coli will be the applicable indicator.

e. These values apply to E. coli or enterococci regardless of origin unless a sanitary survey shows that sources of the indicator bacteria are non-human and an epidemiological study shows that the indicator densities are not indicative of a human health risk.

(2) Marine waters:

A Indicator B Geometric mean C Single sample maximum (per 100 ml)

C1Designated bathing beach (75% confidence level) C2 Moderate use coastal recreation waters (82% confidence level) C3 Light use coastal recreation waters (90% confidence level) C4 Infrequent use coastal recreation waters (95% confidence level)

Enterococci c ............ 35/100 ml a

.............. b 104 b 158 b 276 b 501

Footnotes to table in paragraph (c)(2): a. This value is for use with analytical methods 1106.1 or 1600 or any equivalent method that measures viable bacteria. b. Calculated using the following: single sample maximum = geometric mean * 10 ∧ (confidence level factor * log standard deviation), where the confidence level factor is: 75%: 0.68; 82%: 0.94; 90%: 1.28; 95%: 1.65. The log standard deviation from EPA ’ s epidemiological studies is 0.7.

c. These values apply to enterococci regardless of origin unless a sanitary survey shows that sources of the indicator bacteria are non-human and an epidemiological study shows that the indicator densities are not indicative of a human health risk.

(3) As an alternative to the single sample maximum in paragraph (c)(1) or (c)(2) of this section, States may use a site-specific log standard deviation to calculate a single sample maximum for individual coastal recreation waters, but must use at least 30 samples from a single recreation season to do so.

(d) Applicability. (1) The criteria in paragraph (c) of this section apply to the coastal recreation waters of the States identified in paragraph (e) of this section and apply concurrently with any ambient recreational water criteria adopted by the State, except for those coastal recreation waters where State regulations determined by EPA to meet the requirements of Clean Water Act section 303(i) apply, in which case the State ’ s criteria for those coastal recreation waters will apply and not the criteria in paragraph (c) of this section.

(2) The criteria established in this section are subject to the State ’ s general rules of applicability in the same way and to the same extent as areother Federally-adopted and Stateadopted numeric criteria when applied to the same use classifications.

(e) Applicability to specific jurisdictions. (1) The criteria in paragraph (c)(1) of this section apply to freshcoastal recreation waters of the following States: Illinois, Minnesota, New York, Ohio, Pennsylvania, Wisconsin.


### 482 40 CFR Ch. I (7

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(2) The criteria in paragraph (c)(2) of this section apply to marine coastal recreation waters of the following States: Alaska, California (except for coastal recreation waters within thejurisdiction of Regional Board 4), Florida, Georgia, Hawaii (except for coastal recreation waters within 300 meters ofthe shoreline), Louisiana, Maine (except for SA waters and SB and SC waters with human sources of fecal contamination), Maryland, Massachusetts, Mississippi, New York, North Carolina, Oregon, Puerto Rico (except for waters classified by Puerto Rico as intensely used for primary contact recreation and for those waters included in § 131.40), Rhode Island, United States Virgin Islands.

(f) Schedules of compliance. (1) This paragraph (f) applies to any State that does not have a regulation in effect forClean Water Act purposes that authorizes compliance schedules for NationalPollutant Discharge Elimination System permit limitations needed to meetthe criteria in paragraph (c) of this section. All dischargers shall promptlycomply with any new or more restrictive water quality-based effluent limitations based on the water quality criteria set forth in this section.

(2) When a permit issued on or after December 16, 2004, to a new pathogen discharger as defined in paragraph (b)of this section contains water qualitybased effluent limitations based onwater quality criteria set forth in paragraph (c) of this section, the permitteeshall comply with such water qualitybased effluent limitations upon the commencement of the discharge.

(3) Where an existing pathogen discharger reasonably believes that it will be infeasible to comply immediately with a new or more restrictive water quality-based effluent limitations based on the water quality criteria set forth in paragraph (c) of this section, the discharger may request approval from the permit issuing authority for a schedule of compliance.

(4) A compliance schedule for an existing pathogen discharger shall require compliance with water qualitybased effluent limitations based onwater quality criteria set forth in paragraph (c) of this section as soon as possible, taking into account the discharger ’ s ability to achieve compliance with such water quality-based effluent limitations.

(5) If the schedule of compliance foran existing pathogen discharger exceeds one year from the date of permit issuance, reissuance or modification,the schedule shall set forth interim requirements and dates for their achievement. The period between dates of completion for each requirement may not exceed one year.

If the time necessary for completion of any requirement is more than one year and the requirement is not readily divisible into stages for completion,the permit shall require, at a minimum, specified dates for annual submission of progress reports on the status of interim requirements.

(6) In no event shall the permit issuing authority approve a schedule of compliance for an existing pathogen discharge which exceeds five years from the date of permit issuance, reissuance, or modification, whichever is sooner.

(7) If a schedule of compliance exceeds the term of a permit, interimpermit limits effective during the permit shall be included in the permit and addressed in the permit ’ s fact sheet or statement of basis. The administrative record for the permit shall reflect final permit limits and final compliance dates. Final compliance dates for finalpermit limits, which do not occur during the term of the permit, must occur within five years from the date of issuance, reissuance or modification ofthe permit which initiates the compliance schedule.

[69 FR 67242, Nov. 16, 2004]

§ 131.42 Antidegradation Implementation Methods for the Commonwealth of Puerto Rico.
(a) General Policy Statement. (1) All point sources of pollution are subject to an antidegradation review.

(2) An antidegradation review shall be initiated as part of the Section 401

—

‘‘ Water Quality Certification Process ’’ of the Clean Water Act.

(3) The 401 Certification Process shall follow the procedures established by the February 2, 1989 Resolution R

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– 2 of the Governing Board of the Puerto


### 483 Environmental Protection Agency § 131.42

Rico Environmental Quality Board (EQB).

(4) The following are not subject to an antidegradation review due to thefact that they are nondischarge systems and are managed by specific applicable Puerto Rico regulations:

(i) All nonpoint sources of pollutants. (ii) Underground Storage Tanks.(iii) Underground Injection Facilities.

(5) The protection of water qualityshall include the maintenance, migration, protection, and propagation of desirable species, including threatened and endangered species identified in the local and federal regulations.

(b) Definitions. (1) All the definitions included in Article 1 of the Puerto Rico Water Quality Standards Regulation (PRWQSR), as amended, are applicable to this procedure.

(2) High Quality Waters: (i) Are waters whose quality is better than the mandatory minimum level to support the CWA Section 101(a)(2) goalsof propagation of fish, shellfish, wildlife and recreation in and on the waters. High Quality Waters are to beidentified by EQB on a parameter-byparameter basis.

(ii) [Reserved] (3) Outstanding National Resources Waters (ONRWs):

(i) Are waters classified as SA or SE in the PRWQSR, as amended, or any other water designated by Resolution of the Governing Board of EQB. ONRWs are waters that are recreationally orecologically important, unique or sensitive.

(ii) [Reserved] (c) Antidegradation Review Procedure. (1) The antidegradation review will commence with the submission of theCWA Section 401 water quality certification request. EQB uses a parameterby-parameter approach for the implementation of the anti-degradation policy and will review each parameter separately as it evaluates the request for certification. The 401 certification/ antidegradation review shall comply with Article 4(B)(3) of the Puerto Rico Environmental Public Policy Act (LawNo. 416 of September 22, 2004, as amended (12 LPRA 8001 et seq. )). Compliance with Article 4(B)(3) shall be conducted in accordance with the Reglamento de la Junta de Calidad Ambiental para el Proceso de Presentacio  ́ n, Evaluacio  ́ n y Tra  ́ mite de Documentos Ambientales (EQB ’ s Environmental Documents Regulation). As part of the evaluation ofthe Environmental Document an alternatives analysis shall be conducted (12 LPRA 8001(a)(5), EQB ’ s Environmental Documents Regulation, e.g., Rules 211E and 253C), and a public participation period and a public hearing shall be provided (12 LPRA 8001(a), EQB ’ s Environmental Documents Regulation, Rule 254).

(2) In conducting an antidegradation review, EQB will sequentially apply the following steps:

(i) Determine which level of antidegradation applies

(A) Tier 1

— Protection of Existing and Designated Uses.

(B) Tier 2

— Protection of High Quality Waters.

(C) Tier 3

— Protection of ONRWs. (ii) [Reserved] (3) Review existing water quality data and other information submitted by the applicant. The applicant shallprovide EQB with the information regarding the discharge, as required bythe PRWQSR including, but not limited to the following:

(i) A description of the nature of the pollutants to be discharged.

(ii) Treatment technologies applied to the pollutants to be discharged.

(iii) Nature of the applicant ’ s business.

(iv) Daily maximum and average flow to be discharged.

(v) Effluent characterization. (vi) Effluent limitations requested to be applied to the discharge according to Section 6.11 of the PRWQSR.

(vii) Location of the point of discharge.

(viii) Receiving waterbody name.(ix) Water quality data of the receiving waterbody.

(x) Receiving waterbody minimum flow (7Q2 and 7Q10) for stream waters.

(xi) Location of water intakes within the waterbody.

(xii) In the event that the proposed discharge will result in the lowering of water quality, data and information demonstrating that the discharge is necessary to accommodate important economic or social development in the


### 484 40 CFR Ch. I (7

– 1

– 08 Edition) § 131.42

area where the receiving waters are located.

(4) Determine if additional information or assessment is necessary to make the decision.

(5) Prepare an intent to issue or deny the 401 water quality certificate and publish a notice in a newspaper of wide circulation in Puerto Rico informing the public of EQB ’ s preliminary decision and granting a public participation period of at least thirty (30) days.

(6) Address the comments receivedfrom the interested parties and consider such comments as part of the decision making process.

(7) Make the final determination toissue or deny the requested 401 certification. Such decision is subject to the reconsideration procedure established in Law 170 of August 12, 1988, Ley de Procedimiento Administrativo Uniforme del Estado Libre Asociado de Puerto Rico (3 LPRA 2165).

(d) Implementation Procedures. (1) Activities Regulated by NPDES Permits

(i) Tier 1

— Protection of Existing and Designated Uses:

(A) Tier 1 waters are: ( 1 ) Those waters of Puerto Rico (except Tier 2 or Tier 3 waters) identifiedas impaired and that have been included on the list required by Section 303(d) of the CWA; and

( 2 ) Those waters of Puerto Rico (except Tier 2 and Tier 3 waters) for which attainment of applicable water quality standards has been or is expected to be, achieved through implementation of effluent limitations more stringent than technology-based controls (Best Practicable Technology, Best Available Technology and Secondary Treatment).

(B) To implement Tier 1 antidegradation, EQB shall determine if a discharge would lower the water quality to the extent that it would no longer be sufficient to protect and maintain the existing and designated uses of that waterbody.

(C) When a waterbody has been affected by a parameter of concern causing it to be included on the 303(d) List, then EQB will not allow an increase of the concentration of the parameter ofconcern or pollutants affecting the parameter of concern in the waterbody. This no increase will be achieved by meeting the applicable water quality standards at the end of the pipe. Until such time that a Total Maximum DailyLoad (TMDL) is developed for the parameter of concern for the waterbody, no discharge will be allowed to cause or contribute to further degradation of the waterbody.

(D) When the assimilative capacity of a waterbody is not sufficient to ensure maintenance of the water quality standard for a parameter of concern with an additional load to thewaterbody, EQB will not allow an increase of the concentration of the parameter of concern or pollutants affecting the parameter of concern in the waterbody. This no increase will be achieved by meeting the applicable water quality standards at the end of the pipe. Until such time that a TMDLis developed for the parameter of concern for the waterbody, no discharge will be allowed to cause or contribute to further degradation of the waterbody.

(ii) Tier 2

— Protection of High Quality Waters:

(A) To verify that a waterbody is a high quality water for a parameter of concern which initiates a Tier 2 antidegradation review, EQB shall evaluate and determine:

( 1 ) The existing water quality of the waterbody;

( 2 ) The projected water quality of the waterbody pursuant to the procedures established in the applicable provisionsof Articles 5 and 10 of the PRWQSR including but not limited to, Sections 5.2, 5.3, 5.4, 10.2, 10.3, 10.4, 10.5, and 10.6;

( 3 ) That the existing and designated uses of the waterbody will be fully maintained and protected in the event of a lowering of water quality.

In multiple discharge situations, theeffects of all discharges shall be evaluated through a waste load allocationanalysis in accordance with the applicable provisions of Article 10 of the PRWQSR or the applicable provisions of Article 5 regarding mixing zones.

(B) In order to allow the lowering of water quality in high quality waters, the applicant must show and justify the necessity for such lowering of water quality through compliance with the requirements of Section 6.11 of thePRWQSR. EQB will not allow the entire assimilative capacity of a


### 485 Environmental Protection Agency § 132.1

waterbody for a parameter of concern to be allocated to a discharger, if thenecessity of the requested effluent limitation for the parameter of concern isnot demonstrated to the full satisfaction of EQB.

(iii) Tier 3

— Protection of ONRWs: (A) EQB may designate a water as Class SA or SE (ONRWs) through a Resolution (PRWQSR Sections 2.1.1 and 2.2.1). Additionally, any interested party may nominate a specific water tobe classified as an ONRW and the Governing Board of EQB will make the final determination. Classifying a water as an ONRW may result in the water being named in either Section 2.1.1 or 2.2.2 of the PRWQSR, which would require an amendment of the PRWQSR. The process for amendingthe PRWQSR, including public participation, is set forth in Section 8.6 of said regulation.

(B) The existing characteristics ofClass SA and SE waters shall not be altered, except by natural causes, in order to preserve the existing natural phenomena.

( 1 ) No point source discharge will be allowed in ONRWs.

( 2 ) [Reserved](2) Activities Regulated by CWA Section 404 or Rivers and Harbors Action Section 10 Permits (Discharge of Dredged or Fill Material)

(i) EQB will only allow the dischargeof dredged or fill material into a wetland if it can be demonstrated thatsuch discharge will not have an unacceptable adverse impact either individually or in combination with other activities affecting the wetland of concern. The impacts to the water qualityor the aquatic or other life in the wetland due to the discharge of dredged orfill material should be avoided, minimized and mitigated.

(ii) The discharge of dredged or fill material shall not be certified if thereis a practicable alternative to the proposed discharge which would have lessadverse impact on the recipient ecosystem, so long as the alternative doesnot have other more significant adverse environmental consequences. Activities which are not water dependentare presumed to have practicable alternatives, unless the applicant clearly demonstrates otherwise. No discharge of dredged and fill material shall becertified unless appropriate and practicable steps have been taken which minimize potential adverse impacts ofthe discharge on the recipient ecosystem. The discharge of dredged or fill material to ONRWs, however, shall be governed by paragraph (d)(1)(iii) of this section.

[72 FR 70524, Dec. 12, 2007]



### PART 132

— WATER QUALITY GUIDANCE FOR THE GREAT LAKES SYSTEM

Sec. 132.1 Scope, purpose, and availability of documents.
132.2 Definitions. 132.3 Adoption of criteria. 132.4 State adoption and application of methodologies, policies and procedures.132.5 Procedures for adoption and EPA review. 132.6 Application of part 132 requirements in Great Lakes States and Tribes.

T ABLES TO P ART 132
A PPENDIX A TO P ART 132

— G REAT L AKES W ATER Q UALITY I NITIATIVE M ETHODOLO

GIES FOR D EVELOPMENT OF A QUATIC L IFE C RITERIA AND V ALUES A PPENDIX B TO P ART 132

— G REAT L AKES W ATER Q UALITY I NITIATIVE A PPENDIX C TO P ART 132

— G REAT L AKES W ATER Q UALITY I NITIATIVE M ETHODOLO

GIES FOR D EVELOPMENT OF H UMAN H EALTH C RITERIA AND V ALUES A PPENDIX D TO P ART 132

— G REAT L AKES W ATER Q UALITY I NITIATIVE M ETHODOLOGY

FOR THE D EVELOPMENT OF W ILDLIFE C RI

TERIA A PPENDIX E TO P ART 132

— G REAT L AKES W ATER Q UALITY I NITIATIVE A NTIDEGRADATION P OLICY A PPENDIX F TO P ART 132

— G REAT L AKES W ATER Q UALITY I NITIATIVE I MPLEMENTA

TION P ROCEDURES

A UTHORITY : 33 U.S.C. 1251 et seq.

S OURCE : 60 FR 15387, Mar. 23, 1995, unless otherwise noted.

§ 132.1 Scope, purpose, and availability of documents.
(a) This part constitutes the Water Quality Guidance for the Great Lakes System (Guidance) required by section 118(c)(2) of the Clean Water Act (33 U.S.C. 1251 et seq. ) as amended by the Great Lakes Critical Programs Act of 1990 (Pub. L. 101

– 596, 104 Stat. 3000 et