United States 

Environmental Protection 

Agency 

Office of Water 

(4203) 

EPA 833-B-93-002 

April 1994 (Rev.) 

GUIDANCE FOR THE PREPARATION OF 

DISCHARGE MONITORING REPORTS: 

FACILITIES REQUIRED TO REPORT 

SEMI-ANNUAL MONITORING RESULTS 

UNDER NPDES STORM WATER 

GENERAL PERMITS 

Printed on Recycled Paper 
TABLE OF CONTENTS 

1. PRODUCTION ...................................................... 2 

2. GENERAL INFORMATION .............................................. 2 

2.1 MONITORING REQUIREMENTS ....................................... 2 

2.2 REPORTING REQUIREMENTS ......................................... 3 

3. STEP-BY-STEEP INSTRUCTIONS FOR RECORDING MONITORING RESULTS ........ 7 

3.1 PREPARING A DMR ................................................ 7 

4. STATE-SPECIFIC REQUIREMENTS ....................................... 

4.1 EPA REGION I.. .................................................. 

4.1.1 MAINE ..................................................... 

4.2 EPA REGION II .................................................. 

4.2.1 PUERTO RICO ............................................... 

4.3 EPA REGION III .................................................. 

4.3.1 DISTRICT OF COLUMBIA ....................................... 

4.4 EPA REGION VI .................................................. 

4.4.1 LOUISIANA ................................................. 

4.4.2 NEW MEXICO ............................................... 

4.4.3 OKLAHOMA ................................................. 

4.4.4 TEXAS ..................................................... 

4.5 EPA REGION VIII ................................................. 

5. REGIONAL MAILING ADDRESSES AND PHONE NUMBERS ................... 

EXHIBITS 

EXHIBIT 1-1: LOCATIONS 1 IN WHICH THE GENERAL PERMITS ARE APPLICABLE .. . . . 

EXHIBIT 2-1: MONITORING PERIODS AND REPORTING DEADLINES . . . . . . . . . . . . . . 4 

EXHIBIT 2-2: GENERAL PERMIT PARAMETER REQUIREMENTS . . . . . . . . . . . . 5 

EXHIBIT 2-3: ALTERNATIVE TO WET TEST PARAMETERS . . . . .................. 6 

EXHIBIT 3-1: SAMPLE DMR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 

11 

11 

11 

11 

11 

12 

12 

12 

12 

12 

12 

13 

16 

17 
EXHIBIT l-l: LOCATIONS IN WHICH THE GENELUt PERMITS ARE APPLICABLE 

The conditions outlined in this guidance dm are 

applkabk only KI facilities covered by EPA-Kurd pennits. If 

you are located in a NPDES-authorized State, you mua consu& 

your State-soecific storm water aeneral oc#t or vcn&&& 

authoritv for s#cific #tmit m ‘Ibe EPAissued general pemits are availab& to induaial discbgcrs in 

the following States and Territories: 

. All lands (including Indian and Federal) in: 

Alaska 

American Samoa 

Arizona 

District of Columbia 

Florida 

Guam 

Idaho 

Johnston Atoll 

Louisiana 

M&lC 

Massachusetzs 

Midway and Wake Islands 

New Hampshire 

New Mexico 

Oklahoma 

Puerto Rico 

Texas 

. Indian lands in: 

California 

colorado 

Mississippi 

Montana 

Nevada 

New York 

North Carolina 

North Dakota 

Utah 

wwn 

w-h4 

. Federal Facilities in: 

coIorado 

D&Waft 

Washington 

NPDES Storm Water General Pamit DMR Guidance Page 1 
1. INTRODUCTION 

Under the National Pollutant Discharge Elimination 

system (NPDES), the Environmental Protection 

Agency (EPA) has issued general permits for storm 

water discharges associated with industrial activity in 

States and territories that have not been delegated 

NPDES permitting authority. See Exhibit 1-1 on the 

opposite page for a list of these locations. The 

permits were published on September 9 and 

September 25, 1992, in the Federal Register (57 FR 

41297 and 57 FR 44438). 

The permits require certain categories of facilities to 

report semi-annual monitoring results for storm water 

discharges. This booklet: 

clarifies which industrial activities are required 

to report their storm water discharge monitoring 

results (Section 2.1); 

identifies the parameters to be monitored, and 

when and where to report (Sections 2.1, 2.2); 

provides instructions on how to record 

monitoring results on a Discharge Monitoring 

Report (DMR) (Section 3); and 

lists additional State-specific requirements that 

facilities, depending on where they are located, 

must meet in addition to the EPA requirements 

in preceding sections (Section 4). 

If you have any questions regarding the storm water 

program, please call your permitting authority. 

Permitting authority addresses and phone numbers are 

listed in Part 5 of this guidance. If you would like to 

obtain guidance on procedural methods for conducting 

storm water sampling, the guidance manual titled 

NPDES Storm Water Sampling Guidance Document 

(EPA #833-B-92-001, July, 1992) can be obtained by 

contacting the EPA Office of Water Resources Center 

at (202)260-7786. 

This booklet will be revised and expanded as 

necessary to reflect changes in the reporting 

requirements in storm water general permits. 

Comments from users are welcome. Send comments 

to: U.S. EPA, Office of Wastewater Enforcement and 

Compliance, Mail Code 4203, 401 M Street, S.W., 

Washington, D.C. 20460. 

2. GENERAL INFORMATION 

This section reviews the requirements for reporting 

semi-annual monitoring results in EPA’S storm water 

general permits. The numbers in brackets below refer 

to the section of the general permits in which the 

requirement can be found. In addition to the 

requirements listed in this section, facilities must 

comply with specific State and Regional requirements, 

which can be found in Section 4 of these instructions. 

For more details, please refer to the State and Region 

specific requirements in the permit under which the 

facility is covered (section XI in 57 FR 41297 and 57 

FR 44438). 

2.1 MONITORING REQUIREMENTS 

Facilities That Must Report Semi-Annual 

Monitoring Results 

Certain storm water discharges from the industrial 

activities listed below must be monitored twice per 

year, with the results reported annually (see Exhibit 2- 

1 for monitoring periods and sporting dates). If a 

facility has storm water discharges associated with 

industrial activity from multiple and separate 

activities, only those discharges where the 

requirement apply must be monitored. 

Section 313 of Emergency Planning and 

Community Right to Know Act (EPCRA) 

facilities: 

Storm water that is discharged from the facility 

that comes into contact with any equipment, 

tank, container or other vessel or area used for 

storage of a Section 313 water priority chemical, 

or located at a truck or rail car loading or 

unloading area where a Section 313 water 

priority chemical is handled. [Part VI.B.2.a] 

Wood treatment facilities 

Storm water discharges from areas that are used 

for wood treatment, wood surface application or 

storage of treated or surface-protected wood at 

any wood preserving or wood surface facilities. 

[Part VI.B.2.d] 

NPDES Storm Water General Permit DMR Guidance Page 2 
Discharges Under More Than One Catqpry 

Facilities with discharges that fall under more than 

OIfc npming category, where the ~ca arc comingled, must monitor and report by the earliest 

applicable date and then annually by that date. If 

tliscbgm under dlffcrent catcgotied arc not wmingle4 then monitoring and rtporting can be 

pctfbtmcd either together, according to mt fslicst 

date, or SqwauIy according to the dates for the 

applicable categories. (Coal pllc runoff may not be 

txkmingled prior to sampling bccwse of the efflualt 

llmltatlons contalncd ln the permits - see Section 3.1 

of these insuuctlons.) [parts VI.B.2.a-f; VI.D.1.a-d) 

SubstantiaNy IdentW Dkharges 

Ifthenisreasontobcllcvethatthcdlschargesfro~ 

two or mote ouffUls arc substantially idauical, one c 

the outfalIs may be monitond and that data submitted 

for aR subgtantiluy identical outfalls. A description 

of the location of the outfalls, an explanation of why 

tk outfds have substantially identical dls&argcs, 

andtheslxeofthcdminageateaandlunoff 

wcfftcient must be submitted a8 an attachment to the 

DMR. lpart VLB.61 

How to Report 

A scoaratc DMR form is reauired for each storm 

event and for each outfall sam~1e.d. DMRs must be 

signed and mailed to the appropriate EPA Region, 

and must be postmark4 by the date specified in 

Exhibit 2-l. The permittee should retain a copy. See 

Section 5 for a list of Regional mailing addresses and 

phone numbers. [part VI.D.l] 

EXHIBIT 2-1: MONITORING PERIODS AND REPORTING DEADLINES 

NPDES Storm Water General Permit DMR Guidance Page 4 
Primarv metal industrica: l tbedatcanddurationofthesto~, 

Storm w8ter didages from indusrrial activities . the dundorr betwan the StOrlll SalXlpl@J d he 

classified as Standard Indusuial Classification 

(SIC) 33. [part VIB2.b) 

end of tk PIWOUS measurable storm of g=ater 

thano.1 inch, 

coal oiles: 

Coal pile runoff. lpart VI.BLe] 

Batters reclaimers: 

Storm water discharges from areas used for 

storage of lead acid batttries, nclamafion 

products, or waste products, and areas used for 

lead acid battery reclamatia~ lpaxt VI.B.24 

Land disoosal units/Incinetators/Boilers a 

Industrial Furnaces Ml%) . 

Storm water discharges ‘fro* any active or 

inactive landfill, land application sites, or open 

dumps without a stabilized final cover that has 

received any industrial waate4 (otherthan wastes 

from a constmction site) and incinerators, 

including BIFs that hum hazardous waste and 

operate under interim status or a permit under 

Subtitle C of RClU. rpart VI.B.2.c] 

Parameters to Monitor 

Exhibit 2-2 lists the specific parameters (pollutants) 

that must he monitored for each industrial category. 

If more than one of these categories applies to a 

particular discharge, the discharge must be monitored 

for & parameters listed in each category. [Parts 

VI.B.2.a~f) 

WET Test Alternative 

Facilities that must monitor for whole efnuent toxicity 

(WET), instead may monitor for those pollutants 

identified in Tables II and III of Appendix D of 40 

CFR 122 (see Exhibit 2-3) that are lolown or believed 

to be present at the facility. Facilities should 

determine which of there pollutants may be present in 

or absent from the d&barge thmugh a nasonable 

best effort to idendQ signi&ant quantities of 

materials or chemicals m at the fkcility. [Part 

VI.B.8) 

Storm Event Characteristics 

The following infoxmation must be provided on the 

DMR for the storm event that pmduced the discharge: 

. a measurement or estimate of the amount of 

rainfau(in~~,and 

. 

. CSWMtC Of the tOti VOhlC of the discharge 

&pled (in gallons). [part VI.B22] 

Adverse Wepther Waiver 

If saxnple~ cannot be c~lleaed due to adverse weather 

corxlidans, a description of why samples could not be 

collected must be submitted in lieu of a DMFL A 

waiver bccauae of adverse weather cannot be 

submfaed mote than once in any two-year period. 

[Part VLBJ] 

Exemption to Monitoring Rquirements 

As an altemative to monitoring an outfall, an annual 

certification may be made that material handling 

equipmau or activities; raw or waste materials; 

intcnnediate, Anal, or by-products; industrial 

machinery or operations; and significant materials 

fmm past auivity am not presently exposed to storm 

water and will not be exposed for one year. The 

ccttificatlon sbuld be made at the stan of each oneyear reporting period and kept with the facility’s 

storm water pollution prevention plan. This 

certification is then submitted in lieu of the DMR at 

the appropriate time (see Exhibit 2-l). [Part VI.B.7) 

2.2 REPORTING REQUIREMENTS 

When to Monitor and Report 

Samples must be collected and analyzed at least once 

during each six-month monitoring period. Monitoring 

results must be suhrnitted annually. See Exhibit 2-1 

for monitoring periods and sporting dates. Results 

do not have to be submitted until the facility has been 

covered by tk permit for a full 6-month monitoring 

period. [patta VI.BZ.a-f; VI.D.l.a-c] 

More kqumt Monitoring 

If sampling is c4mductcd mote ikquently than semiannually, u sampling results must be submitted. A 

separate DMR is rcquikl for each storm event 

sampled. (Part VI.D.l.a-c] 

NPDES Stem Water General Permit DMR Guidance Page 3 

-IT 2-3: ALTERNA’IXVE TO WET TEST PARAMETERS 

he WET Test Alternative in Section 2.2) 

F&ml Regimt / VOL 67, NO. 17s / Wednedw ~tember A l802 / Notloee US31 

Tab& II--ocgmic TOXIC Poliutanb la 

EadlofFourFIeioaainAa4dsby 

Gu Chroamtogmphy/Meu Spochns= 

WY (GS/M 

1,2-diChlOfWthM~ 

l.ldichlomethylme 

m&i chloride 

methylene chloride 

l.lfi4etrschloroethennc 

tetrechlomeLylene 

toluene 

l.tlruUdkbIoroetb~lone 

tl.l-ticMoraelhme~ 

1.1.2~Mchlometh~ne 

trichllomeQylene 

Vinyl chloride 

Acid Campow& 

tjllomohenol 

udkhi0r0ph000i 

2MlmethylDhenol 4edinilreocneol 

fcdinitrophmol 

t-nitmpheaol 

Cakrcwhenol pehloio-lnaarol 

pentrchlomphenol 

phenol 

&&&pIithdene 

p phenyl ether 

dIheuo(ch)mthrrcene 

-A 

Tebh IU-Oth TOXIC Pollutaats 

(Met&mdCyui&)andTot~l Phenols 

NPDES Storm Water Geneml Permit DMR Guidance Page 6 
3. STEP-BY-STEP 

INSTRUCTIONS FOR 

RECORDING MONITORING 

RESULTS 

Please read sections 2 and 3, and refer to the 

additional State-specific requirements in Section 4, 

prior to recording monitoring msults on a DMR. 

wbn following t&se stepby-step immuctions, refer 

to the sampIe DMR for g&lance (Exhibit 3-I). The 

words and phrases in itaucs in the following stepbysup instnrctions refer to speclfIc locations or headings 

ontheDMR. Thestepsareidentifledontbesample 

by the step number enclosed in a circle. 

3.1 PREPARING A DMR 

(If more than one page is needed to record monitoring 

results, enter the information for Steps 1,2,3,4,5, 

and 13 on every page. Remember that a separate 

DMR is required for each storm event and each 

outfall sampled.) 

I) Name/Address 

Enter the Permitree Name/Mailing Address and 

Facility NameJLocation, if different. 

2) Permit Number 

Enter the Permit Number for your facility. The 

permit number is the unique number assigned 

specifkally to your facility for coverage under a 

storm water general permit Your facility’s pennit 

number can be found in the letter you received 

confirming that your facility is covered by the permit. 

3) Discharge Number 

If you an submitting monitoring run&s for more than 

one outfall, you must record the outfall’s Discharge 

Number. You must ud@r a unique dirchyee number 

(e.g., 001,002, etc.) to ucil outfaIl It is appropriate 

toassigneachoutfaIIthcaamemrmbcritisassigned 

in your facility’s storm water poIlution prevention 

plan. If the facility has &sting NPDES permits for 

other outfalls, do not duplicate outfall numbers. 

Rather, begin with the number following the last one 

as!dgnedinyourexistingpermiL Ifyoubclievethat 

the discharges from your facility’s outfalls are 

SlhWUWly identical, please scc Substantially 

Identical OutfaIls in Section 2.2. 

4) Monitoring Period 

Under Monitoring Period, enter dates for the 

beginning and end of the six-month period covered by 

the DMR (see Exhibit 2-l). 

5) Dlachuocfitcgory 

In tb top right comet of the form, indicate the 

category or categories for the discharge that was 

sampled (i.e., Section 313 EPCRA, primary metal, 

etc.). 

6) storm Event characteristics 

use the fIm Iine to rw4xl the reqldred storm 

infotmation. Under Phamerer, enter the date and 

duradoa of the storm, and the time elapsed since the 

last m-e storm gteater than 0.1 inch. 

Under Quaxtiv or Loading, enter in the MPximwn 

column the minfall measurement or estimate for the 

storm that gcsmted the discharge. 

Under Qua&y or Concennation, enter in the 

Maxtnum column an estimate of the total volume 0 

the fIow through the outfall. 

The minfall estimate should be in inches and the 

volume estimate should be in gallons. Record the 

units that were used in the Units columns. 

7) Sample Type 

For dis&arges from holding ponds or other 

impoundments with a retention period greater than 24 

hours, a minimum of one grab sample may be taken 

for all parameters. 

For all other dis&uges, both a grab sample and a 

composite sample must be collected and analyzed for 

all parameters except the following live (for which 

only a grab sample is requkd): 

. PIJ 

. cyan% 

. whole emtent toxicity, 

. fecal coliform, and 

. Oilaadgnase. 

NPDES Storm Water Oenaal Permit DMR Gtidanee Page 7 
pIerae note that you only have to monitor for those 

~~0 listed in your permit (see Rxhibit 2-2 and 

. 

All samples must be collected from a discharge 

tesuldngfromastonnofgreaterthaa0.1inchin 

rainfaUandthatoccursatleast72houtxafterthe 

pmvious sum of 0.1 inch or more. Grab samples 

mustbetakenduringthefirst3OmtnuMoftk 

dkharg~unlessitnpracticable,Lawhichcascagrab 

samplemaybetakenduringthefIrsthour. Iftfie 

grabsampleisnottakendutingthefimt3Ominutes, 

an explanation of why this was not possible must be 

submitted with the DMR. ._ -. - 

8) Parameters - Sampled PoUut8ats 

Enter each parameter as specified in the monitoring 

requirments of your permit (see Exhibit 2-2 and 

Section 4). One line is needed for each sample type. 

Therefore, to report nsults for both grab and 

wmposite samples of the same parameter, use two 

lines. 

9) Recording of Sample Results 

Enter the monitoring results for each parameter 

according to the following format. Under Quufiry or 

Concerurufion, record grab sample results in the 

Mzximum column and record composite sample 

ttsults in the Averugc column. Remember to use one 

line for each sample type. 

Under the Sample Type column, record the type of 

sample used for the analysis. Record “0” for a grab 

sample, and “c” for a composite sample. For 

composite samples. indicate if the results are from a 

flow-weighted (F) or time-weighted (T) composite. 

Also, ncord the units used in the Unia column. 

10) EfIluent Umitations 

The only non-State specific effluent limitations listed 

in EPA’s general pennits ate for cosI pb nmoff. 

The effluent limhations for coal pile nt&f are: a 

maximum concentnuion at any time of 50 m@ total 

suspendedsolids(TSS)andapHwithintkrangeof 

6.0 - 9.0 standard units. Compliance with &se 

effluent limitations must be achieved no later than 

October L1995. 

TO report nUXhing twults for parameters where 

eflknt limitalkms apply, enter the limitation as the 

Penn& Requirement under Quufio or Concentration. 

Under the No. &x cohunrk enter a “Y” if the sample 

measurement duhug tk monitoring puiod exceeded 

the effluau limitation for that parameter. Otherwise, 

leave the space blank 

11) Shte-s~nc Emalt LimitatioIu 

Statespociflc ellluea limitations also may apply to 

your dbchpgu (see Section 4). If your permit 

con&ins State--c effluent limitations that apply 

totbedkharge,aUcrtheIimitadcmsusingthe 

. llEM&oMinthleaecQndpuagmphofsrep 10. (No 

State-specific dTluaU limitadons am shown on the 

sample DMR.) 

12) Biomonitoring Rearlts 

If a whole effluent toxicity (WET) test is conducted, 

all of the M organisms, procedurea, and quality 

asmrancecriteriathatareusedmustbeinaccordance 

with the following EPA guidance manual: Methods 

for Measuring the Acute Toxicitv of Effluents and 

Receiving Waters to reah ater and e 

fhatisnq *A/6tlW-&7PlcYiscd SepfcMmMbcnr. 

. 

For WET results, if there is no gad&al difference 

between the conttnl mortality and the effluent 

mortality (no dilution), repon a “0” in the iUuximwn 

column under Qua&y or Concentrction. If there is a 

statisdcaldifferracebecweeatheconanlmortalityand 

the effiuent morrality, report a “1” in the Maximum 

column under Qu&y or Concen@urion. (No WET 

testresultsareshownonthesampleDMR.) 

13) Identi&ation/CertifScation 

Enter NamdTfrk # Principal Eucudve Ofier, 

Signawe ofPrincipal&cutive Q#icer or Authorized 

Agent, Telephone Nwnber, and Date at the bottom of 

each page of the DMR after reading the Certification 

StNt!XUau. 

14) Ibfailiugthe DMR 

Send the ampleted DMRs to the ~priatc EPA 

Regional mailing address (see Section 5). Please 

make sure to provide &uate postage. 

NPDES Storm Water General Permit DMR Guidan~ Page 8 
tmhty NIIILMti U4mmI 

NAME J. Doe Company 

__-- ------ --------mm 

_----- ADDRESS 1234 Somewhere St. 0 ------------ 

1 .Anehere s 75009 --- --- ,-A --m-B- 

--------- 

bE ---u -- -- 

_------------------- LOCATION 

_--w----m--. 

FACILITV 

_-------- 43-A.k 

DISCHARGE YONI I. I SING REPORT (DMR) 

WRYIT MUYBER EXHIBIT 3-l: SAMPLE DMR FORM 

-1 WCoal Pile Runoff 

:‘Road InWuctlonr boforo compkUw rhlr form. 

OUALITY Ok CONCENT~TION f 

previous-l month 

recoverable 

C(F) 

C(F) 

EPA Form 3X+ Ptwlour dlttonr may be wed. (REPLACES EPA FORM 1 .#I NIV NOT BE USED.) 
l LRYITTEE NAYEtA@.- ‘UfrrN wloNALYlw!~N"L'~ 

Fmluy NmulLordo ’ n,, 

_---- NAME I 0 

J. Doe Compn_y ---- -- 

AOORESS ------ 1 1234 SomewhereSc -------WC---- 

~~vwlxxaz,XX~75~~,, EXHlBlT3-1: SAMPLEDMRFORM c-------- 

_--_-_---------c---- MONITORING PERIOD 

FACILITY 4 

------ --a-AM.&------- -- -- 0 I YEAR 1 MO 1 DAY 5 Coal Pile Runoff 

LOCA 

-- 

mTlON 

-- ----- 

aJ&-sl‘ll> 

-- -------A-- FROM 193 (20-21) (ZI-23) (24-m 

QUANTITY OR LOADING (4 ( 

(34-611 .E 

tot al 1 

nit kel 

recoverable ME&.ZZENT 

PERUIT ’ 

REtiREYEN 

I 

10 G 

mg/l 

total recoverable ME&NT 

nickel 

lQEcEz&NT 

total recoverable MESENT 

zinc PERMIT 

REOUIREMENT 

total recoverable SAMPLE 

MEASUALUENT 6 

mg/l 

C(F) 

zinc PERMIT 

AEOUIREMEN? 

SAMPLE 

MEASUAEUENT 

PERU17 

REQUIAEUENT 

CPA FM~ 7131).1 rRtw 9.M Pnwious ed/flons my be used IREPLACES EPA FORM T 40 WHICII YAY NO1 BE USED j CAOE 3 OF ‘1 
4. STATE-SPECIFIC 

REQUIREMENTS 

Iti addition to following the insttuctions discussed in 

Sections 2 and 3, dischargers in the St8tes below must 

comply with the following special monitoring and 

reporting rcquhwnents. (Please see Patt XI of your 

permit for more spectic details.) Please note that the 

wt%titions outhed in this guidlmce document 8re 

applicable only to facilides awered by EPA-issued 

permits (See Exhibit l-l).- If you are located in a 

NPDES-authorized State, you must consult vour 

State-soecific storm water genetal tnxmit or vour 

State oennittina authoritv for specific oermit 

cmditions. 

4.1 EPA REGION I 

4.1.1 MAINE 

Whole Effluent Toxicity OKET) Test Proceduns: 

The discharge will not lower the quality of the 

receiving waters below the minimum requirements of 

their classification and will satisfy the appropriate 

requirements of Maine law provided that the test 

organisms include cerioduphnia and brook trout, 

salvelinus fontinafis, to meet the WET requirements 

for storm water discharges associated with industrial 

activity. 

4.2 EPA REGION II 

42.1 PUERTO RICO 

Additional Parameters: Permittees must install a rain 

gauge and keep daily recordg of the amount of 

rainfall. A copy of these records must be submitted 

on the 28th days of January, ApriI, July, and October, 

and shall be attached to the DMR where appropriate. 

Storm Characurisdc Data: 

. In addition to the required storm characteristic 

data, permittees must provide an estimate of the 

size of the drainage area (in square feet); and an 

estimate of the runoff coefficient of the drainage 

area [e.g., low (under 4O%), medium (40% to 

65%), or high (above 65%)). (FaciIities subject 

to Section 313 of EPCRA and Ird diqmsal 

unit&xinennors/BIFs an not subject to this 

rquiremm) This infOm18t.h should t 

included in the attachment containing the rain 

ww npon 

. Peru&tees subject to ~NMI monitoring 

req&ements a~ not required to provide an 

estimate of the total volume (iin gallons) of the 

disch8rge sampled. 

Samtie Tvpe; For data sported in a grab sample and 

a composite sample: 

‘For thi fits hdf of the sampling period, all - _ 

samples shall be coIlec&d f&m a discharge 

multing from a storm event that occurs at least 

72 hours from the previously measurable storm 

evaa 

Intheeventthatthepermitteeisunableto 

satisfy this condition during the first half of the 

sampiing period, beginning on the first day of 

the second h8lf of the sampling period, the 

permittee shdl collect simplea from a storm 

event that occurs at least 48 hours from the 

previously measurable event 

The permittee must document the conditior 

under which the storm water samples were 

taken, how many manual samples were taken for 

the composite sample, and the date of sampling. 

This information should be attached to the 

sampling results. 

If samples cannot be collected, a certification of 

why it was not possible to meet the above 

protocol may be submitted in lieu of a DMFL 

NOTE: Fleas be advised that on September 24, 

1993, EPA Region II issued a revised $401 

Cetdfication (Storm Water C3eneral Permit 

Cenific8tioa for Storm W8ter Mscharges Associated 

with Industrial Activity) for Fbato Rico. This 

revision modified “Special Condition Number 13,” 

which tiddmma matitoting requitemarts, but did not 

changeanyotbercarditioasofu.teCertBcatiotL This 

modiflc&otthasbeenincotporatedintotheGetxral 

Permit and is reflected in the above summary. 

However, please be advised that permit&es that we~lc 

coveted under the storm water general uermit orior to 

this date were ran&d to COHIDIY with the oexmit 

NPDES Storm Water Gcncral Permit DMR Guidance Page 11 
. . condltlons that were effective at that timea Please 

comact Region II for mom iafotmatioa 

43 EPA REGION III 

43.1 DISTRICT OF COLUMBIA 

Additional Efnuent Limitations; For coal pile runoff, 

pH must be in the range of 6.0-85 sta&ani units. 

4.4 EPA REGION VI 

4.4.1 LOUISIANA 

Additional Parametera: 

. section 313 of EPCRA facilities: Tot 

. Primary Metal facilities: TOC 

. Land Disposal facilities: TKN 

. Wood Treatment facilities: TOC 

. Coal Pile Runoff: TOC 

. Battery Reclaimers: TOC 

Additional Effluent Limitations; For all dkharges, 

the daily maximums are 50 mg/l for TOC and 15 

mg/l for oil and grease. Permittees must be in 

compliance by October 1, 1995. 

For oil and gas exploration and production facilities, 

in addition to the limitations above, the daily 

maximums are 100 mg/i for COD. Maximum 

chloride concentrations must not exceed two times the 

ambient concentration of the receiving water in 

brackish marsh areas, and must not exceed 300 mg/l 

in freshwater or intermediate marsh (UC(LII and upland 

areas. 

Whole Effluent Toxicitv (WF3”l Test Procedure . . 

Results must be summa&cd on Table VI-A mi 

submitted to EPA with the DMR. (A copy of Table 

VI-A is attacks to these instructions.) 

4.42 NEW MEXICO 

&mole Twe: All gmb and composite samples must 

becoikctaifromadis&ugenrmltlngfmmastorm 

that is greater than 0.1 inches in magnitude and 

occurs at least 150 hours fFom the ptevioualy 

measured storm. There must be a minimum of 60 

days betweal sampled storms for facilities required to 

monitor semi-annually. 

le Effluent To . citv (WET) Test Procedures . 

Rerultt must be Aark& on Table VI-A and 

Pubmittedt~EpAwithth~DMR. (AcopyofTable 

VI-A is aazbed to t&e instructions.) 

In- to -c water suDDlies . 

disdwgs into a designated domestic watei sum: 

must be monitored annually-for the parameters iisted 

below (ii addition to other monitoring requiranents). 

If ttc UxEamadlm of any sample exceeds the 

Repable Qwntity Action Level listed below (dl 

unitsatemgkexceptforthemdiumlimi~whichis 

pCi/i), the permittee’muat submit the results of the 

sampIeaaalyaistodEstatewithin24hotlrs. 

IXs&uga m on Indian Nations must submit 

thempotttoRegion6attheaddressspecifiedinthe 

list attacki to the instruuions, with a copy 

provided to the Goveming Body of the Indian Nation. 

disdved arsenic: 0.05 

disadved barium: 1.0 

disadved caalium: 0.010 

disaohed chromium: 0.05 

dissoIved lead: 0.05 

maI mm 0.002 

dissolved nimte: 10.0 

dissolvd adadum: 0.0s 

dissolved rilver. 0.05 

dissolved cyanide: 0.2 

dissoIval uranium: 5.0 

radim-22&radium-228: 30.0 

The New Mexico river segments designated for use as 

a domestic water supply can be found in the permit 

and the latest design of Water Oualitv Standards for 

Interstate and Inuastate Streams in New Mexico. 

4.43 OKLAHOMA 

Whole Effluent Toxkitv (WI37 Test Aoccdures: 

Resultsmustbe summarized on Table VI-A and 

submitted to EPA with the Dh4R (A copy of Table 

VI-A is attackd to these instruction&) 

NPDES Storm Water General Permit DMR Guidance Page 12 
4.4.4 TEXAS Additional Effluatt Liiitadons: Below arc special 

&luau limitar.ions for hazardous metals in dis&-g~ 

to tidal waters and inland wrtero (all stated in mgll). 

Tidal watcm are deAned as those waters of the Gulf 

of Mexico within the jurisdiction of the Stare of 

Texas, bays and estuaries thereto, and those portions 

oftherivasystemswhicharesubjecttotheebband 

flowofthctidcs,8ndtotkinhusionofmarine 

waters. Wand wauxs arc defined as all surfact 

waters in tk State other than “tidal waters” as defined 

For Wood TreaunaU facilities 

arsmic formuiarions: Icute WET. 

whole Effiucm Toxicitv N’EIP Tea Rtxzdurcs . 

Rcsul~mustbesummarizcdonTabkVI-Aanci 

submitted to EPA with the DMR. (A copy of TabIe 

VI-A is attackd to these insttu&ons.) 

All mcdsurcma~rs m in mg/l. 

NPDES Storm Water General Permit DMR Guidance 
* . 

!i$rLnic olltfall(r): 

Dihth watn Us& ~Raxivitq Stttatn 

~SyIlthuiC wuer 

Tii Date 

coueuai 

Tut IaiM 

Mean A 

1) Is the mean nuvivd at 24 hours GO% ia the 100% dilution7 Yer,, NoIf you report a NO, enter a *I” on the DMR fom, Parameter No. TGE3D. Othwviae, enter a *O.* 

2) ls there a sIU.istically significant differam in awvivrl at the lW% dilutiao u caqared to the cow01 (O%)? 

NoIf you report a YES, enter a “I” on the DMR Form, Paramuter No. TWD. Otkwk, w&r a 0.” 

-...........i.............~..-..~-~-...-...-.--.-.............-........--.---- “--.I.......“.............-.............. 

Fathead Minnow (Pimrphaler promeht) Suwival 

Pwmitta: 

NPDES Permit: 

Outfall(s): 

Time Date 

Test initiated 

Dilution Water Used: - Receiving Stnun 

- synthetic water 

D 

Mull 

3) IrthcmwnwivllrtUbavr>~in~10096dilution? Yes NoIf you report a NO, enter a “I” OR fhe DMR form, Parameter No. 7G~~Otktwb, enter a Y).’ 

2) Is thffe a StUiStiCdl~ @lificmt diffm itl nwivll It tb 100% dilutiao 8# OQmpubd to tb c.ontml (O%)? YuNoIf you reporr a YES, enter a “I” OII the DMR Form, Parameter No. TEEbC. Othenvke, enter a “0.’ 

NPDES Stotm Water General Permit DMR Guidance Page 14 
TABLE M-A: LOUISIANA, NEW MEXICO, OKWHOM. 

Daphnia pnia Suwivrl 

pamitt% 

NPDES Pamir 

oulfall(:): Composite 

Sample 

CQllaatd 

Time 

1 

Date 

Dilution Water Used: - Rcceiviug Streun Test Initiated 

synthetic water 

1) k the mean suwival at 24 hours >SO% in tlm 100% dilution? Ysr NoI/ you repan a NO, enter a “I * on ti DMR form, Parauaew No. 7Gmx Otlmwise, enter a 0.” 

2) k thae I statistically signifwrnt differam B amival u rbs lo(yk dilurioa aa m to the control (O%)? Y-- 

NoI/ you report a YES, triter a “I* on ti DMR Form, Param&r No. TEUD. Othwk enter a *O.” 

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..~.I.........~U.UIU....UI.__I- --....................I....................... 

Fathead hhnow (Pimephalcs prom&u) Suwivrl 

Permittee: 

NPDES Permit: 

oulfall(s): 

canposir.e 

Sample 

collected 

Time Date 

Test Initiated 

Dilution Water Used: - Rweiving Stream 

- synthetic water 

3) Is the man curvivd at 24 hours ~50% in tk 100% dilutim? Ya Noff you repon a NO, enter a “1” on the DMR form, Pararne~r No. 7GE OthemW, en&r a “0.’ 

2) Isthatartr~yri~cran~~in~athe10096~~u~rotbe~(09b)? Yes,, 

!f you report a YES, enter a “I” on the DMR Form, Parameter No. TEUC. Otherwk enter a “0.” 

NPDES Storm Water General Permit DMR Guidance Page 15 
43 EPA -ION VItC 

Whole Etnuerrt Toxi@v IVYET) Teat Roadurts . 

Pennittees requind to ma&of for WET must ’ 

follow the Region VRI m proc&tc~ as follows: 

The permittee must Unxluct an acute 48-hour static 

replaccInent toxidty test using cviodqphnlrr dubia 

and an acute 96-hour static mpketmt toxidty test 

using Pimephales promeitu (flat&ad minnow). The 

static replacement toxicity tests must be conducted 

in general accordance with “Merhods for Measuring 

the Acute Toxicity of Effillma to Pm&water 

Marine Organisms” EPA/6oW4-90-027 (Revised 

September, 1991) and th~“i&gkm VIII EPA 

NPDES Acute Test Conditions - Static Renewal 

whole Effluent Toxicity Test.” Tests must be 

conducted saniannually on a grab sample of the 

discharge at 100% strength (no dllution). 

AfkrfinlrBet8ofWtsofhuospeciWhepeIInittee 

maytxquauthtsu~tesdngbelitnitcdto 

the mofe saudtive of the two species, based on 

resultsoftheprsviouttear. Thepennitissuing 

authodty may appr0ve or deny the requcat based on 

results or other infottnation without an additional 

public notice. 

ReruloofalltoxicitytestsmUtbcqnxtedina 

fotmat ColltLtcM with the laWt revision of “Region 

VIII Guidance for Acute whole EffIuent 

Repotting,” and Taclude all chemical and physical 

dataasqedfkd. 

Nm; ‘-l’kseWEWzstproceduresspcciflcto 

Region VIII wete left out of the general permit 

language publisM in the 9M2 Federal Register 

(57 FR 41236). A axtection to Region VIII’s Anal 

NPDES general pamit for storm water discharges 

associated with industcial activity will be published 

in a Wure Federal Register. 

NPDES Storm Water Genetal Permit Dh4R Guidance Page 16 
5. REGIONAL MAILING ADDRESSES AND PHONE NUMBERS 

~AlSRhPPROPRI.A= RRGIONAL -DRRSS 

padat IIL Didct of Cohunbh’, De&wore Pedud Pacilitiea 

us. BtMammd Roteotiat Agaacy*Region m 

wua Mulaganmt Division owM5;5) 

stam water staff 

841 cbssznut Building 

Fldhdelpbir. PA 19107 

(21s)s97-1651 

Re&m VI: Louisiaruq New Mexico’ (see Regia~ IX for 

Navajo lands. and Region VIII for Ute Mm. Reservation 

lands). Oklrhorm, Texas 

U.S. E&ronmental Protection Agency, Region VI 

Wua Management Division (6W-EA) 

stotm water staff 

Fvrt Intentate Bank Tower at Fountain Place 

144s Ross Avenue, 12th Flea, Suite 1200 

Dally TX 75202 

(214)655-7175 

Reaion IX: Ahma, Califomir hiian luxis, Nevdr Indian 

lmds, Guam’, Amcxicul sunol, Midwry and wake ssluK4 

Jcbnstoa Atoll, the Goshute Resewrtioo in UT and NV, he 

Navajo Resenwion in UT and NM and AZ, the Duck Valley 

R~8tioItiIlNVIrdlD 

U.S. Euv~ental Rouctian Agency, Region Ix 

Water Management Division (W-5-3) 

storm war staff 

7s Hawthorne Street 

Sm Frahsco, CA 94105 

(415)744-1906 

Rw VUk Cola& Indian lands, Colacado Federal Facilities, 

tvlauum Idim 14, North Dakota Indian lands. Wyoming Indian 

his, Utah hdiat lands (see Region IX for Goshute Resmmtion and 

Navajo Rwmwioa lands) 

U.S. Edmunad Rasctiat Agency, Regia VIII 

:2x 

Divisiat, NPDBS Bnnch (8WM-C) 

999 18th sIltava,co 002024466 

(303)293- 1630 

R&on X Al&a’, Idaho (we Regim IX for Duck Valley Reservation 

lands), Washington Indian lands, Washington Federal Facilities 

U.S. En- Rotecth Agency, Region X 

Water Managewat Division (WD-04) 

stotm water staff 

1200 sixth smet 

Seattle, WA 98101 

(206)553-g399 

1 NOTE: DMRrmtairk~~~to~Re~dhcrr.~~eoWm\lakwtodolfdbwhy~gSuteddrsrr 

AK: Alaska Dqmma~ of ewironmartrl Cauavltion. Northan Regional Of!h, 1001 Noble St. Suite 350, Fairba& AL 99701, or 

Aluh JJqmmmm of Eawhmud Camseva Soutbntmn Regional OfIke 410 W. Wiioughby, Suite 105. Jw AL 99801, m 

Alnlulzkpmmtofpmu’ \-riohsorrdrearnrl RegioMioaa43601-C=sae8&suite1334,An&ang&AL 99503,oc 

Alukr~of~CmravrrionPipelineCcrridorRadoarlOma.4llW.~An,Sllitc~,AnchmlcAL 99502 

DC: Gov- of District of Cdumbia, Dcpt of CoMnaa d Regulucwy Affain, &vhmwual Reguldon Adminirtntiar. 2100 Martin 

Luther King Jr. Ave. S.E. Washington, DC 20020 

Gu: GuunEwimunm td Rotection Agemy, D-107 Humor Plru. 130 Rojv St. Hanrum, GU 95911 

NM: Progrrm Mmmger, New Mexiaa Eaviremmt IBepmm& Surface Wats Quality Bwea~, Surfrec Water Section, 1190 St. Fhncis Drive, 

P.O. Box 26110, Santa Fe, NM 87SO2 

PR: w* Quality Are& Puerto Rh Eavhnmmtd Quality Bolrd P.O. Box 1148%. santutcq PR 00910 

EPAC~Fkld~O~uPodknyCartaB~,1413Fanadaz~AvenlrS~PR 0@07 

2 NOTE: For Montana Indian hnds, please use tb following ddrsu: U.S. EPA, Region VIII, Maulnr Opcxatiw Office, Faied OEl%x Bu. 

Drawer 10096,301 South park, Heh MT 59620-0026 

NPDES Stotm Water Genetal Pamit DMR Guidance Page 17