# Everglades West Coast Group 1 Basin / South District - Verified List (Cycle 2 Revised and Readopted May 2009) Hydrologic Unit: Everglades West Coast

May 14, 2009 1 of 3 Florida Department of Environmental Protection

OGC Case

Number Planning Unit WBIDWater Segment Name Waterbody TypeWaterbody Class1 

### 1998 303(d) Parameters of Concern Parameters Assessed Using the 2007 Impaired Surface Waters Rule (IWR) Concentration Causing ImpairmentPriority for TMDL Development2 

### Comments (# of Exceedances/ # of Samples) PP=Planning Period VP=Verified Period3

09-2680 Estero Bay 3258B HENDRY CREEK STREAM 3F Dissolved Oxygen < 5.0 mg/L Medium pp = 122 / 160; vp = 31 / 59. BOD is the causative pollutant, BOD value exceeds median value of 1.4 mg/L in unimpaired waterbodies in this Planning Unit. Listed as impaired on Cycle 1 Verified List.

09-2681 Estero Bay 3258B1 HENDRY CREEK MARINE ESTUARY 3M Dissolved Oxygen Dissolved Oxygen < 4.0 mg/L Medium pp = 113 / 126; vp = 43 / 50. TN and TP are causative pollutants with TN median = 0.89 mg/L and TP median = 0.05 mg/L. Listed as impaired on Cycle 1 Verified List.

09-2682 Estero Bay 3258B1 HENDRY CREEK MARINE ESTUARY 3M Fecal Coliform > 400 colonies per 100 ml Low pp = 29 / 136; vp = 26 / 143 Impaired. Listed as Impaired on Cycle 1 Verified List.

09-2683 Estero Bay 3258C ESTERO BAY DRAINAGE STREAM 3F Dissolved Oxygen < 5.0 mg/L Medium pp = 338 / 372; vp = 94 / 117. TN, TP, and BOD are causative pollutants based TN Median = 0.99 mg/L (88 obs), TP Median = 0.04 (70 obs), and BOD Median = 1.6 mg/L (78 obs). Listed as impaired on Cycle 1 Verified List.

09-2684 Estero Bay 3258C ESTERO BAY DRAINAGE STREAM 3F Fecal Coliform > 400 colonies per 100 ml Low pp = 39 / 289; vp = 29 / 224 Impaired.

09-2685 Estero Bay 3258C1 ESTERO BAY DRAINAGE MARINEESTUARY 3M Iron >0.3 mg/L Medium pp = no data; vp = 10 / 18 Impaired.

09-2686 Estero Bay 3258C1 ESTERO BAY DRAINAGE MARINEESTUARY 3M Dissolved Oxygen < 4.0 mg/L Medium pp = 162 / 295; vp = 24 / 153. TN is the causative pollutant with TN Median = 0.84 mg/L (152 obs).

09-1319 Estero Bay 3258D ESTERO RIVER STREAM 3F Fecal Coliform > 400 colonies per 100 ml Low pp = 27 / 115; vp = 26 / 97 Impaired.

09-2687 Estero Bay 3258D ESTERO RIVER STREAM 3F Dissolved Oxygen < 5.0 mg/L Medium pp = 144 / 170; vp = 74 / 92. TN and TP are the causative pollutants with TN Median = 0.88 mg/L (61 obs), TP Median = 0.04 (54 obs).

09-2688 Estero Bay 3258D1 ESTERO RIVER MARINE ESTUARY 3M Dissolved Oxygen < 4.0 mg/L Medium pp = 205 / 322; vp = 74 / 181. Listed as impaired on Cycle 1 Verified List. TN and BOD are causative pollutants with TN Median = 0.85 mg/L (149 obs) and BOD Median = 1.6 mg/L (85 obs). The Department developed reference (TN = 0.84 mg/L, TP = 0.05 mg/L, BOD = 1.5 mg/L) thresholds for Estero Bay, based on the 75th percentile of reference waterbodies.

09-2689 Estero Bay 3258E IMPERIAL RIVER STREAM 3F Dissolved Oxygen Dissolved Oxygen < 5.0 mg/L Low pp = 155 / 173; vp = 90 / 104. TN and TP are causative pollutants with TN median = 0.95 mg/L (104 obs) and TP median = 0.03 mg/L (83 obs). Listed as impaired on Cycle 1 Verified List.

09-2690 Estero Bay 3258E IMPERIAL RIVER STREAM 3F Fecal Coliform > 400 colonies per 100 ml Low pp = 47 / 129; vp = 38 / 184

09-2691 Estero Bay 3258E1 IMPERIAL RIVER MARINE ESTUARY 3M Dissolved Oxygen < 4.0 mg/L Medium pp = 197 / 297; vp = 41 / 128. Causative pollutant linked to nutrients with TN/TP ratio median of 21.33 mg/L (106 obs).

09-2692 Estero Bay 3258E1 IMPERIAL RIVER MARINE ESTUARY 3M Fecal Coliform > 400 colonies per 100 ml Low pp = 40 / 377; vp = 48 / 325 Impaired.

09-2693 Estero Bay 3258E1 IMPERIAL RIVER MARINE ESTUARY 3M Nutrients (Chlorophyll-a)TN = 0.88 mg/L; TP = 0.04 mg/L Medium Annual chlorophyll-a average exceeded the 11.0 ug/L threshold for estuaries in 2004 with mean of 30.13 ug/L. Annual chlorophyll-a average did not exceed threshold in 2005 with mean of 4.8 ug/L and in 2006 with 4.7 ug/L. Nutrient impairment due to co-limitation of nitrogen and phosphorus.

09-2694 Estero Bay 3258G TENMILE CANAL STREAM 3F Dissolved Oxygen < 5.0 mg/L Medium pp = 914 / 1246; vp = 177 / 335. TN and BOD are causative pollutants with TN Median = 0.83 mg/L (313 obs) and BOD Median = 1.3 mg/L (295 obs).

09-2695 Interdrainage Area 3261C BARRON RIVER CANAL STREAM 3F Iron > 1.0 mg/L Medium pp = 3 / 14; vp = 5 / 23 Impaired.

09-2696 Interdrainage Area 3278TOKALOA-COOCHEESTREAM 3F Dissolved Oxygen < 5.0 mg/L Medium pp = 86 / 99; vp = 79 / 92. TN and TP are causative pollutants with TN Median = 1.35 mg/L (89 obs) and TP Median = 0.04 (96 obs).

09-2697 Interdrainage Area 3278W SILVER STRAND STREAM 3F Dissolved Oxygen < 5.0 mg/L Medium pp = 12 / 16; vp = 18 / 25. TN and TP identified as causative pollutants with TN median = 1.87 mg/L (20 obs.) and TP median = 0.41 mg/L (21 obs.).

09-2698 Southwest Coast 3259ACOCO-HATCHEE RIVER ESTUARY 2 Coliforms Fecal Coliform > 43 colonies per 100 ml Low pp = 69 / 98; vp = 98 / 149 Impaired.

09-2699 Southwest Coast 3259A COCO-HATCHEE RIVER ESTUARY 2 Iron >0.3 mg/L Medium pp = 15 / 16; vp = 28 / 57 Impaired.

09-2700 Southwest Coast 3259WLAKE TRAFFORD LAKE 3F Dissolved Oxygen Dissolved Oxygen < 5.0 mg/L Low pp = 63 / 518; vp = 52 / 357. TN and BOD are causative pollutants with TN median value = 2.42 mg/L (409 obs.) and BOD median = 4.1 mg/L (493 obs.). EPA delisted in Cycle 1. This impairment is linked to nutrients and will be completed in conjunction with the nutrient TMDL listing.

09-2701 Southwest Coast 3259WLAKE TRAFFORD LAKE 3F Nutrients Nutrients (TSI) TN = 2.43 mg/L; TP = 0.10 mg/L; BOD = 4.1 mg/L Low Annual TSI exceeded threshold for impairment from 2000 - 2004. Annual TSI means are: 76.1 (2000) with color of 190, 67.8 (2001) with color of 103, 73.3 (2002) with color of 95.8, 69.1 (2003) with color of 97.3, 70.6 (2004) with color of 92.2 PCU. Co-limitation of nitrogen and phosphorus with TN/TP ration median = 23.03 mg/L.

# Everglades West Coast Group 1 Basin / South District - Verified List (Cycle 2 Revised and Readopted May 2009) Hydrologic Unit: Everglades West Coast

May 14, 2009 2 of 3 Florida Department of Environmental Protection

OGC Case

Number Planning Unit WBIDWater Segment Name Waterbody TypeWaterbody Class1 

### 1998 303(d) Parameters of Concern Parameters Assessed Using the 2007 Impaired Surface Waters Rule (IWR) Concentration Causing ImpairmentPriority for TMDL Development2 

### Comments (# of Exceedances/ # of Samples) PP=Planning Period VP=Verified Period3

09-2702 Southwest Coast 3259WLAKE TRAFFORD LAKE 3F Un-ionized Ammonia >0.02 mg/l as NH3 Medium pp = 88 / 464; vp = 44 / 332 The impairment for this waterbody will be completed in conjunction with the nutrient TMDL listing.

09-2703 Southwest Coast 3278D COCO-HATCHEE INLAND STREAM 3F Dissolved Oxygen < 5.0 mg/L Medium pp = 175 / 342; vp = 201 / 413. TN and TP are causative pollutants with TN Median = 0.82 mg/L (359 obs) and TP Median = 0.03 (384 obs). Listed as impaired on Cycle 1 Verified List.

09-2704 Southwest Coast 3278FCORKSCREW MARSHSTREAM 3F Dissolved Oxygen < 5.0 mg/L Medium pp = 57 / 69; vp = 67 / 81. TN and TP are causative pollutants with TN Median = 0.85 mg/L (65 obs) and TP Median = 0.03 (69 obs).

09-2705 Southwest Coast 3278G FAKA-HATCHEE STRAND STREAM 3F Fecal Coliform > 400 colonies per 100 ml Low pp = 22 / 161; vp = 25 / 190 Impaired.

09-2706 Southwest Coast 3278G FAKA-HATCHEE STRAND STREAM 3F Dissolved Oxygen < 5.0 mg/L Medium pp = 144 / 179; vp = 172 / 219. TN is the causative pollutant with TN Median = 0.72 mg/L (193 obs). Listed as impaired on Cycle 1 Verified List as WBID 3259L.

09-2707 Southwest Coast 3278K (3259C)GORDON RIVER EXTENSION STREAM 3F Dissolved Oxygen Dissolved Oxygen < 5.0 mg/L Low pp = 69 / 75; vp = 70 / 72. TN and TP are causative pollutants with TN Median = 0.89 mg/L (60 obs) and TP Median = 0.07 (66 obs).

09-2708 Southwest Coast 3278LIMMOKALEE BASIN STREAM 3F Dissolved Oxygen < 5.0 mg/L Medium pp = 23 / 30; vp = 38 / 52. TP is the causative pollutant with TP median = 0.26 mg/L (43 obs.)

09-2709 Southwest Coast 3278R (3259G) NAPLES BAY COASTAL ESTUARY 2 Copper >3.7 mg/L Medium pp = 40 / 60; vp = 90 / 240 Impaired

09-2710 Southwest Coast 3278R (3259G) NAPLES BAY COASTAL ESTUARY 2 Fecal Coliform > 43 colonies per 100 ml Low pp = 204 / 253; vp = 286 / 482 Impaired

09-2711 Southwest Coast 3278R (3259G) NAPLES BAY COASTAL ESTUARY 2 Iron >0.3 mg/L Medium pp = 21 / 30; vp = 109 / 168 Impaired

09-2712 Southwest Coast 3278R (3259G) NAPLES BAY COASTAL ESTUARY 2 Dissolved Oxygen < 4.0 mg/L Medium pp = 102 / 276; vp = 143 / 513. TN, TP, and BOD are causative pollutants with TN Median = 0.64 mg/L (465 obs), TP Median = 0.04 (512 obs), and BOD Median = 2.0 mg/L (282 obs).

09-2713 Southwest Coast 3278S (3259D+3

259E) NORTH GOLDEN GATE STREAM 3F Iron > 1.0 mg/L Medium pp = 12 / 53; vp = 31 / 111 Impaired

09-2714 Southwest Coast 3278S (3259D+3

259E) NORTH GOLDEN GATE STREAM 3F Dissolved Oxygen < 5.0 mg/L Medium pp = 163 / 365; vp = 158 / 397. TN is the causative pollutant with TN Median = 0.78 mg/L (364 obs). Listed as impaired on Cycle 1 Verified List.

09-2715 Southwest Coast 3278U ROOKERY BAY COASTAL ESTUARY 2 Dissolved Oxygen < 4.0 mg/L Medium pp = 68 / 343; vp = 43 / 283. BOD is the causative pollutant with BOD median = 2.2 mg/L.

09-2716 Southwest Coast 3278U ROOKERY BAY COASTAL ESTUARY 2 Nutrients (Chlorophyll-a)TN = 0.32 mg/L; TP = 0.04 mg/L; BOD = 2.2 mg/L Medium Chlorophyll-a annual average exceeded the 11.0 ug/L threshold for estuaries in 2006. Annual averages: 2000 - 5.7 ug/L, 2001- 5.3 ug/L, 2002 - 5.8 ug/L, 2003 - 4.9 ug/L, 2004 - 5.1 ug/L, and 2006 - 13.94 ug/L.

09-2717 Southwest Coast 3278U ROOKERY BAY COASTAL ESTUARY 2 Fecal Coliform > 400 colonies per 100 ml Low pp = 7 / 18; vp = 11 / 31 Impaired

09-2718 Southwest Coast 8065SOUTHWEST COAST GULF 5 COASTAL 3M Bacteria (in Shellfish) Listed on Cycle 1 Verified List based on change in shellfish harvesting classification (Downgraded from approved to conditional). Current classification effective as of September 28, 2004 Conditionally Approved. This WBID is meant to include shellfish downgrades for the Ten Thousand Islands shellfish harvesting area.

09-2719 Florida Gulf Coast 8999 FLORIDA GULF COAST COASTAL 3M Mercury (Based on fish consumption advisory) Mercury (Based on fish consumption advisory) Hg > 0.3 mg/Kg High* Data verified to be within the last 7.5 years (2002, 2003/2004). Confirmed recent data for coastal and associated estuary fish advisories for king mackerel and bull shark. This includes the following WBIDs; 3258A, 3258B1, 3258C1, 3258D1, 3258E1, 3258F, 3258H1,

3258I, 3258J, 3259A, 3259M, 3259Z, 3278I, 3278Q, 3278R, 3278U, 8060, 8061, 8062, 8063, 8064, and 8065. Confirmed recent data for freshwater fish located in fish advisories for largemouth bass. This includes the following WBIDs: 3261B and 3261C in 2006, 3266A and 3278M from 2002 - 2004. Confirmed recent data in 2003 for freshwater fish advisories

for warmouth. This includes the following WBIDs: 3259I and 3278I. Average HG levels were 0.67 mg/kg in king mackerel, 1.85 mg/kg in bull shark, 0.51 mg/kg in warmouth, and 0.89 mg/kg in largemouth bass which exceeded the threshold of 0.43 mg/kg of mercury.

1Florida's waterbody classifications are defined as: 1 - Potable water supplies 2 - Shellfish propagation or harvesting 3F - Recreation, propagation, and maintenance of a healthy, well-balanced population of fish and wildlife in fresh water

# Everglades West Coast Group 1 Basin / South District - Verified List (Cycle 2 Revised and Readopted May 2009) Hydrologic Unit: Everglades West Coast

May 14, 2009 3 of 3 Florida Department of Environmental Protection

OGC Case

Number Planning Unit WBIDWater Segment Name Waterbody TypeWaterbody Class1 

### 1998 303(d) Parameters of Concern Parameters Assessed Using the 2007 Impaired Surface Waters Rule (IWR) Concentration Causing ImpairmentPriority for TMDL Development2 

### Comments (# of Exceedances/ # of Samples) PP=Planning Period VP=Verified Period3

Where a parameter was only identified as impaired under the IWR, a priority of “medium” was assigned. Exceptions are waters where the impairment poses a threat to potable water or human health, which have been assigned a “high” priority, and fecal coliform impairments, which have been assigned a “low” priority. All other listings as of this cycle are prioritized based on the following: it is the Department's intent that listings with a "High" priority be addressed within the next 5 years, listings with a "Medium" priority be addressed within 5-10 years as resources allow, and listings with a "Low" priority be addressed within the next 10 years. 2Where a parameter was 1998 303(d) listed, the priority for TMDL development is the year provided and is assigned based on the consent decree schedule.

The Group 1 Everglades West Coast Basin Verified List is based on IWR Run 32.
Beach advisory data is based on "2006 Beach Advisories" file created 04/16/2007 by FDEP. Fish advisory data is based on "2006 Fish Advisories" file created 07/11/2006 and updated 08/13/2007 by FDEP. 3PP- Planning Period (January, 1995 through December, 2004);VP- Verified Period (January, 2000 through June 30, 2007) g y y g g ( , ) y g ; individual entries have been removed from the list. 3M - Recreation, propagation, and maintenance of a healthy, well-balanced population of fish and wildlife in marine water 4 - Agricultural water supplies 5 - Navigation, utility, and industrial use