ML20141K326

Forwards Ltrs Which Contain Proposed Changes to Braidwood Station Current NPDES Permit

ML20141K326
Person / Time
Site:	Braidwood
Issue date:	05/21/1997
From:	Stanley H COMMONWEALTH EDISON CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
NUDOCS 9705290006
Download: ML20141K326 (28)

Text

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Commonwealth lilima Company

..  : Ilrakiwood Generating $tation

[ Houte al, Ikix 8 6 nraces ille, ll. N1107>)til9 Tel HIb6Mb411 May 21,1997 l l

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U.S. Nuclear Regulatory Commission Washington, D.C. 20555 I Attention: Document Control Desk l

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Subject:

Notification of Proposed Permit Modification ,

Braidwood Nuclear Power Station Units I and 2 l NRC Docket Numbers 50-456 and 50-457

References:

1) J. P. Smith letter to S. F. Nightengale, dated June 28,1996, transmitting Proposed Permit Modification, Braidwood Generating Station, NPDES Permit No. ILOO48321

2) S. F. Nightengale letter to Commonwealth Edison Company, dated April 24,1997, transmitting NPDES Permit No.

IL0048321 - Drall The reference I letter contains proposed changes to Braidwood Station's current NPDES Permit. The first proposed change is to modify the permit to reflect a  ;

year-round fecal coliform disinfection exemption granted from the Illinois  ;

I Environmental Protection Agency (IEPA) on July 28,1995. The second change requested is to modify the permit to allow the use of bromine-based biocides j within the condenser's cooling water and service water systems to control ,

biofouling. The final proposed change requests changes associated with the I sampling frequency for the measurement of oil and grease (O & G) at specific outfalls that require sampling this parameter. The second reference letter provided I by the IEPA includes a Drall Public Notice / Fact Sheet for the discharge and a l Permit Draft 7 l 9703290006 970521 PDR ADOCK 05000456 *

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l Document Control Desk j May 20.1997 Page 2 1 1

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a l A copy of both references described above are attached. If your statT has any )

questions or comments concerning this letter, please refer them to Terrence Simpkin, Braidwood Regulatory Assurance Supervisor, at (815) 458-2801, extension 2980.

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/, L Gene Stanleyf l Site Vice President Braidwood Nuclear Generating Station l

lloSih97043 doe Attachment cc: A.B. Beach, NRC Regional Administrator, Region 111 G.F. Dick, Jr., Project Manager, NRR C.J. Phillips, Senior Resident Inspector F. Niziotek, Division of Engineering, Omce of Nuclear Safety, IDNS 5

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June 28,1996 CERTIFTED MAIL Mr. Stephen F. Nightingale P.E.

Manager, Industrial Unit Permit Section Division of Water Pollution Control 1 lilinois Environmenta.1 Protection Agency 2200 Churchill Road

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P.O. Box 19276 )

Springfield. Illinois 62794-9276

Subject:

Proposed Permit Modification, Braidwood Generating Station, NPDES Permit No. LLOO48321.

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Dear Mr. Nightingale:

Comed received a year-round fecal coliform disinfection exemption from the Agency on July 28, 1995, for the Company's Braidwood Generating Station (copy attached). We therefore respectfully l request that the station's NPDES permit be modified to reflect this exemption. Specifically, the permit would require modification to remove the feca! coliform sampling requirement for Oufall 001(b)-

Sewage Treatment Plant Efiluent, and removal of Special Condition 4 relative to fecal coliform.  ;

Secondly, we request that Braidwood Station's NPDES permit be modified to allow the use of l bromine-based biocides within the condenser cooling water and service water systems to control  ;

biofouling. This biocide will be used in conjunction with sodium hypochlorite (which the station is I currently allowed to use) to achieve greater biofouling control. Please see the attached information regarding planned feed rates of sodium hypochlorite and sodium bromide, as well as an MSDS for sodium bromide. Condenser cooling and house service water discharges containing biocides are discharged to the station's cooling pond. The travel time within the cooling pond to Outfal1001 -

Cooling Pond Blowdown Line (which discharges to the receiving stream) is approximately three days.

This three day travel time plus the sheer volume of Braidwood's cooling pond will result in an undetectable residual at the cooling pond blowdown (Outfall 001). In order to maintain consistency ,

with other Comed facilities that utilize both sodium hypochlorite and sodium bromide, we request that l Special Condition 5 of the station's NPDES permit be modified to read:

Special Condition 5. Chlorine or bromine may not be discharged from each unit's main cooling condensers for more than two hours per day. The reported mean concentration and maximum concentration of Total Residual Chionne/ Total Residual Oxidant (TRC/TRO) shall be based on a minimum of three grab samples taken at approximately five minute ir;tervals at Outfall 001, The time samples were collected, the time and duration of oxidarit dosing perioo plus the monthly average and daily maximum amount of oxidant applied shall be reported on the Discharge Monitonng Reports.

The reported average concentration of TRC/TRO is the average of r.Il values measured for a sampling event and the reported maximum concentration is the hig'iest value measured for a smgle grab sample. Discharge Monitonng Reports shallindicate whether bromine and/or chlorine compounds were used duling the month. A discharge limit, as me'asured at the blowdown to the Kankakee River, of 0.05 m(,/l (instantaneous maximum) shall be schieved for total residual oxidant (total residual chlonne/ total residual halogen) when bromine biocides are used for condenser biofouling control.

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s f June 28,1996 i Mr. Stephen Nightingale, P.E.

Page 2.

Likewise, the parameter description under Outfall 001 - Cooling Pond Blowdown Line on page 2 of ,

the NPDES permit should be amended to read " Total Residual Chlorine /rotal Residual Oxidant" with '

the reference to Special Condition 5 remaining.

I' l Lastly, as you may be aware, USEPA has proposed a change involving 40 CFR Part 136 methodology  ;

relative to the measurement of oil and grease (O&G). This change, from the current Freon extraction '

method to one utilizing hexane extraction will likely involve cumbersome and costly requirements for

. our stations. In many cases, these facilities will have to perform upgrades to existing station l

, laboratory equipment (explosive-proof hoods, etc.), or contract with off-site lab facilities to conduct i

these analyses. Both of these options will result in increased costs to the facility at a time when these same facilities are being asked to control costs due to impending deregulation of the industry.

1 Therefore, we request that the O&G sampling frequency be reduced for the outfalls that require

] sampling this parameter. Specifically, due to the excellent compliance histories associated with this

parameter, we ask that the sample frequency for O&G at Outfalls 001(a) and 001(c) be reduced from 4

the current schedule of 1/ week to 1/ month.

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If you have questions or comments concerning these requests, please contact Mr. Doug Yowell of my staff at (312) 394-4461.

1 Sincerely,

)~['*

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,/ b JeffreyI'. Smith Supervisor of Water Quality JS/DY/dc bwmod96 doc cc: Mr. Robert Mosher, Planning Secuon , DWPC, IEPA Mr. Dann LeCrone, industrial Pemuts Section, DWPC, IEPA

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) State ofIllinois w= ENVIRONMENTAL PROTECTION AGENCY Marv A. Gade Director 2200 Churchill Road, Springfield,IL 62794-9276 l

217/782 3362 RECEIVED ENYlRONWENTA!.SDMCES DIPT July 28, 1995 I

\ ** AUG 0 2 MS I ru l t i IIIlilPlVisjtgggj4j9;p l Ms. Mary F. OToole .

Commonwealth Edison Comoany t 10 South Dearcorn Street. 35 FNW Chicago, Illinois 60603 I

RE: NPDES ILOO48321 Commonwealth Edison - Braicwooa STP (Will County)

Year-round Disinfection Exemotton Tentative Aoproval

Dear Ms. OToole:

The Agency nas completed its review of your June 26.1995, application for exemption from the effluent disinfection recuirements of 35 !!I. Adm. Cede 304.121 for the Commonwealth Edison -

Braidwood Sewage Treatment Plant. Basea upon the information provided in the application l

and the review cntena of Title 35. Part 378. Effluent Disinfection Exemptions. your facility has been tentatively approved for year-round exemotion.

This tentative approval is baseo on the Agency's determination that the affected stream reach.

Commonwealth Edison - Braidwood concenser cooting water blowdown line is not a " protected water" for the purposes of 35111. Adm, Code 302.209. The Agency will proceed with NPDES permit mocification including the necessarv puolic notice reouirements enor to taking final action on your cisinfection exemotion aoprication. All comments receivec dunng the notice period.

including those related to unorotected status for the receiving waters, will be evaluated. Final exemotion action will coincioe with issuance of either a modified or a reissued permit. The permit must be revised to reflect this exemption before the disinfection process can be discontinueo. This tentative aoproval aapties only to Outfall 001b. Any bactenal limits and disinfection requirements of Section 306.305 (excess flow treatment requirements) are unaffected by this axemption and will remain aopticable.

After the cisinfection exemotion becomes effective. continued chlorination for operations and maintenance purposes must not cause a violation of total residual chlonne (TRC) water quality standarcs in the receiving water. The modified permit will contain a concition limiting TRC to 0.05 mg/l when chlonne is utilized for any reason.

Additionally the Agency has determined that this exemption will not result in exceedance of the 2000/100 mi fecal coliform stancard at any downstream puolic or food processing water supply intake. If circumstances change, resulting in an inability to maintain the 2000/100 mi standard at the point of such an intake. this exemption will be subject to reconsideration.

Orietad no Senaamhed nema *

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Page 2 If you have any questions or comments regaroing tnis exemotion. please contact Scott Tomkms at the above acdress anc chone numcer. If you nave questions conceming permit modificanon.

please call the Permit Section at 217/782-0610.

Sincerely, k-l' Joel Cross. Manager

, Planning Section i

Division of Water Pollution Contrat  !

JC: dis.stplant

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cc: Mr. Doug Yowell

Braidwood Station Future Chlorine / Bromine Usage Avg. Feed Rate (Gal 3Hr.) Total Daily Use (Gallons)

System NaOCl NaBr NaOCl NaBr Feed Duration Essential Service Water - Unit 1 3.84 0.319 92 7.65 Continuous Essential Service Water - Unit 2 3.84. 0.319 92 7.65 Continuous <

Non-Essential Service Water - Common 11.5 0956 276 22.9 Continuous Main Unit Condensers - Unit 1 214 17.8 428 35.5 2 hriday (max)

Main Unit Condensers - Unit 2 214 17.8 428 35.5 2 hrlday (max)  !

total = 1316 109.2 Flows Chemical Properties Essential Service Water (per unit) = 20,000 GPM - NaOCI: 12.5 % i

.Non-Essential Service Water (common system) = 60,000 GPM NaBr: 38 %

Condenser Cooling Water (Per Unit) = 595,000 GPM I g 8 ee I

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, ** SODIUM BROMIDE **

• • SODIUM BROMIDE **

• • SODIUM. BROMIDE **

MATERIAL SAFETY DATA SHEET FISHER SCIENTIFIC EMERGENCY NUMBER: (201) 796-7100 1 CHEMICAL DIVISION CHEMTREC ASSISTANCE: (800) 424-9300 '

1 REAGENT LANE i FAIR LAWN NJ 07410 i

(201) 796-7100 THE INFORMATION BELOW IS BELIEVED TO BE ACCURATE AND REPRESENTS THE BEST INFORMATION CURREhTLY AVAILABLE TO US. HOWEVER, WE MAKE NO WARRANTY OF MERCHANTABILITY OR ANY OTHER WARRANTY, EXPRESS OR IMPLIED, WITH RESPECT TO SUCH INFORMATION, AND WE ASSUME NO LIABILITY RESULTING FROM ITS USE. USERS SHOULD MAXE THEIR OWN INVESTIGATIONS TO DETERMINE THE SUITABILITY OF THE INFORMATION FOR THEIR PARTICULAR PURPOSES.

SUBSTANCE IDENTIFICATION CAS-NUMBER 7647-15-6 SUBSTANCE: ** SODIUM BROMIDE **

TRADE NAMES / SYNONYMS:

BROMIDE SALT OF SODIUM: SEDONEURAL: DROMNATRIUM: SODIUM BROMIDE (NABR):

S-255; NABR; ACC21060

..EMICAL FAMILY:

Inorganic salt MOLECULAR FORMULA: BR-NA 1

MOLECULAR WEIGHT: 102.90- j CERCLA RATINGS (SCALE 0-3): HEALTH =2 FIRE =0 REACTIVITY =0 PERSISTENCE =0 NFPA RATINGS (SCALE 0-4): HEALTH =U FI RE=0 REACTIVITY =0 COMPONENTS AND CONTAMINANTS COMPONENT: SODIUM BROMIDE PERCENT: 100 CASN 7647-15-6 1 OTHER CONTAMINANTS: NONE EXPOSURE LIMITS:

No occupational exposure limits established by OSHA, ACGIH, or NIOSH.

PHYSICAL DATA DESCRIPTION: White cubic, hygroscopic crystals or powdet with a saline, bitter

te. BOILIliG POINT: 2534 F (1390 C) MELTING POINT: 1377 r (747 C)

SPECIFIC GRAVITY: 3.203 0 25 C PH: 6.5-8.0 (soln)

SOLUBILITY IN WATER: 116 % 0 50 C u _ _. _ . _ _ _ _ _ _ _ _ _ _ ,

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, SOLVENT SOLUBILITY: Slightly soluble in c1cshol.

i FIRE AND EXPLOSION DATA

' FIRE AND EXPLOSION HAZARD:

Ntgligible fire hazard when exposed to heat or flame.

FLASH POINT: non-flammaole FIREFIGHTING MEDIA:

Dry chemical, carbon dioxide, water spray or foam For larger fires, use water spray, fog or alcohol foam FIREFIGHTING:

No acute hazard. Move container from fire area if possible. Avoid breathing vapors or dusts; keep upwind.

TOXICITY i

SODIUM BROMIDE: i TOXICITY DATA: 3500 mg/kg oral-rat LD50; 7000 mg/kg oral-mouse LD50; 580 mg/kg oral-rabbit LDLo; 104 gm/kg/90 days continuous oral-rat TDLo; 3150 mg/kg/6 weeks continuous oral-rat TDLo; 5020 mg/kg subcutaneous-mouse ,

LD50; 2900 mg/kg subcutaneous-rat LD50; 5 gm/kg intraperitoneal-mouse LD50; reproductive effects data (RTECS).

CARCINOGEN STATUS: None.

OUTE TOXICITY LEVEL: Moderately toxic by ingestion.

i ARGET EFFECTS: Poisoning may affect the skin and the gastrointestinal and j central nerv~ s systems. j AT INCREASED R..,K FROM EXPOSURE: Persons with impaired liver function.

______________________________________________________________________________ j HEALTH EFFFCTS AND FIRST AID I INHALATION: I SODIUM BROMIDE:

ACUTE EXPOSURE- Dusts may cause mucous membrane irritation.

CHRONIC FXPO3URE- Systemic effects due to ingestion and the subsequent excretion of the bromide ion through the respiratory tract may cause rhinitis and broncnial irritation.

I FIRST AID- Remove from exposure area to fresh air inmediately, If breathing has stopped, perform artificial respiration. Keep person warm and at rest.

Treat symptomatically and supportively. Get medical attention immediately.

SKIN CONTACT:

SODIUM BROMIDE:

ACUTE EXPOSURE- No data available.

CHRONIC EXPOSURE- No data available.

FIRST AID- Remove contaminated clothing and shoes immediately. Wash affected area with soap or mild detergent and large amounts of water until no evidence of chemical remains tapproximately 15-20 minutes). Get medical attention immediately.

EYE CONTACT:

SODIUM BROMIDE:

1I ACUTE EXPOSURE- Ha data cvailchlo. I CHRONIC EXPOSURE- No dnts ovailcblo.

I FIRST AID . Wash eyes immediately with large amounts of water or normal saline, i occasionally lifting upper and lower lids, until no evidence of chemical l 4

remains (approximately 15-20 minutest. Get medical attention immediately. l INGESTION:

SODIUM BROMIDE:

ACUTE EXPOSURE- Poisoning by acute exposure is rare because bromides irritate the gastric mucosa when ingested in large amounts as a single dose and cause immediate abdominal pain, nausea and vomiting. However, in the event of kidney damage, systemic poisoning may occur by a single dose and possibly cause paralysis and coma.

CHRONIC EXPOSURE- Repeated or prolonged ingestion of bromides may cause j

" bromism" which most frequently affects the gastrointestinal system, l the central nervous system, and the skin. Gastrointestinal disturbances may include nausea and vomiting from gastric irritation, foul breath, anorexia, weight loss, dehydration and constipation. Neurological l manifestations may include headache, apathy, slurred speech, decreased l memory, drowsiness, impairec intellectual capacity and emotional control, I tremulousness, and ataxla. Delusions and hallucinations may occur.

H yp e ra ctivity, sluggish or absent deep tendon reflexes, generalized j weakness, absence of sexual desire and transitory schizophrenia have also

, been reported. Other effects may include increased intracranial pressure, papilledema and hypertension. Continued exposure may result in stupor and coma. Skin manifestations may include an acneiform, nodular, or i erythematous rash. Early lesions may include papules, pustulss, edematous

. plaques, and ulcers. The classic cutaneous sign of bromism As a pustule-studded, ecthyma-like plaque on the legs. Other systemic effects may include rhinitis, bronchial irritation, lacrimation, conjunctivitis, blepharitis, increase in pupil site, subnormal reactions to light or accomodation, disturbances of color vision, and visual hallucinations.

Discontinuation of exposure will normally result in reversal of  !

s ymp toms . Maternal exposure may resul't in hypotonia in neonates. '

FIRST AID- Treat symptomatically and supportively. Get medical attention immeciately. If vomiting occurs, keep head lower than hips to prevent aspiration, l ANTIDCTE: i The following antidote has been recommended. However, the decision as to whether the severity of poisoning requires administration of any antidote and actual dose required should be made by qualified medical personnel.

BROMIDE POISONING:

Give sodium chloride, 1 gram orally every hour in water or as salt tablets:

for more severe involvement in which oral medication is impossible, give ,

normal saline, 1 liter every 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> intravenously to a maximum of 2 liters daily. Sodium chloride therapy must be continued until the blood bromide level drops below 50 mg/dL. Simultaneous administration of diuretics i:1 1 also useful (Dreisbach, Handbook of Poisoning, 12th Ed.). Antidote sheuld  !

be administered by qualified medical personnel.

t REACTIVITY

.4 ACTIVITY:

1 Stable under normal temperatures and pressures.

INCOMPATIBILITIES: '

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SODIUM BROMIDE:

.- ACIDS: Incompatible.

ALKALOIDAL SALTS: Incemostible.

BROMINE TRITLUORIDE: Rapidly attacked.

HEAVY METAL SALTS: Incompatible.

uECOMPOSITION:

j Thermal decomposition products may include toxic and hazardous fumes of hydrogen bromide and sodium oxide.

POLYMERIZATION:

l' Hazardous' polymerization has not been reported to occur under normal temp 3ratures and pressures, j

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STORAGE AND DISPOSAL i

a

• • Storage **

J Observe all federal, state and local regulations when storing or disposing of this substance.

l Store awaj from incompatible sul..tances.

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CONDITIONS TO AVOID NF.is reported.

1 l SPILL AND LEAX PROCEDURES t

OCCUPATIONAL SPILL:

} Swasp up and place in suitable clean, dry containers for reclamation or later disposal. Do not flush spilled material into sewer. Keep unnecessary people away.

PROTECTIVE EQUIPMENT I

VENTILATION:

Provide local exha*:st ventilation system.

. RESPIRATOR:

The. following respirators are recommended based on information found in the 4

physical data, toxicity and health effects sections. They are ranked in ordar from minimum to maximum respiratory protection.

The specific respirator selected must be based on contamination levels found

in the work place, must be based on the specific operation, must not exceed q-the working limits of the respirator and must be jointly approved by the National Institute for Occupational Safety and Health and the Mine Safety and Healt h .*Jbu nistration (NIOSH-MSRA) .

4 Any dust and mist resp **ator.

Any air-purifying respirator with a high-ef ficiency particulate filter.

Any powered air-purifying respirator with a dust and mist filter.

1 e

I'ny pcwered cir-purifying roepiretor with a high-officicncy particulcte ifiltor. l

, g i Any type ,'C' supplied-air respirator operated in the pressure-demand or other positive pressure or continuous-flow mode. l Any self-contained breathing apparatus.

FOR FIREFIGHTING AND OTHER IMMEDIATELY DANGEROUS TO LIFE OR HEALTH CONDITIONS:

I Any self-contained breathing apparatus that has a full facepiece and is operated in a pressure-demand or other positive pressure mode.

Any supplied-air respirator that has a full facepiece and is operated in a i pressure-demand or other positive-pressure mode in combination with an I auxiliary self-contained breathing apparatus operated in pressure-demand or other positive-pressure mode.

CLOTHING:

Employee must wear appropriate protective (impervious) clothing and equipment to prevent repeated or prolonged skin contact with this substance.

GLOVES:

Employee must wear appropriate protective gloves to prevent contact with this substance.

EYE PROTECTION:

Employee must wear splash-proof or dust-resistant safety goggles to prevent eye contact with this substance.

'ergency eye wash: Where there is any possibility that an employee's eyes may

. exposed to this substance, the employer should provide an eye wash fountain within the immediate work area for emergency use.

AUTHORIZED - FISHER SCIENTIFIC GROUP, INC.

CREATION DATE: 12/18/84 REVISION DATE: 04/06/94

-ADDITIONAL INFORMATION-THE INFORMATION BELOW IS BELIEVED TO BE ACCURATE AND REPRESENTS THE BEST INFORMATION CURRENTLY AVAILABLE TO US. HOWEVER, WE MAKE NO WARRANTY OF MERCHANTABILITY OR ANY OTHER WARRANTY, EXPRESS OR IMPLIED, WITH RESPECT TO SUCH INFORMATION, AND WE ASSUME NO LIABILITY RESULTING FROM ITS USE. USERS SHOULD MAKE THEIR OWN INVESTIGATIONS TO DETERMINE THE SUITABILITY OF THE INFORMATION FOR THEIR PARTICULAR PURPOSES.

Limitation of Liability The Fisher MSDS's provided to you in electronic form were developed under license from Occupational Health Services, Inc.

Each MSDS was developed to be used only with the corresponding Fisher Scientific labeled product, and is .%elieved to be accurate and represents the best information currently available. We make, however, NO WARRANTY OF MERCHANTABILITY OR ANY OTHER WARRANTY, EXPRESS OR IMPLIED, with respect to cuch information, and we assume no liability resulting from its use. Users should

e their own investigations to determine the suitability of the Jormation for their particular purposes. These MSDS's are not t'or resale.

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state of minois w ENVIRONMENTAL PROTECTION AGENCY \

Mary A. Gade, Director 2200 Churchi!! Road, Springfield,IL 62794 9276 Otr782 0610  ;

April 24, 1997 Commonwealth Edison Company Post Office Box 767.35 FNW Chicago. filinois 60690-0767 Re: Commonwealth Edison Company NPDES Permit No. IL0048321 Draft Permit i

Gentlemen:

Attached to this letter is a copy of the draft Permit, Public Notice / Fact Sheet for your discharge. The Agency proposes to issue the NPDES Permit for your discharge as shown in the draft Permit.

Fifteen days fi am the date of this letter, the Agency proposes to distribute the attached Public Notice / Fact Sheet statewide. If ou have objections to the content of the Public Notice / Fact Sheet, a written statement must be received by the Agency at the indicated address, attention: NPDES PN Clerk within 10 days.

The Agency will receive comments regarding the Permit for a period of 30 days after the Public Notice is issued.

If you wish to comment or object to any of the terms and conditions of the Permit, you must state the objections in writing prior to the end of the public notice. The Agency may or may not change the Permit based on comments received from you or the public.

If yrx should have questions or comments regarding the above, please contact Darin LeCrone at the indicated telephone number.

Very truly yours.

/ Jr Stephen . Nightingale, P .

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Manager. Industrial Unit Permit Section Division of Water Pollution Control SFN: DEL:97041003.dlL Attachments: Draft Fermit, Public Notice / Fact Sheet cc: Records Unit Compliance Assurance Section Facility printed on neeveled 9sser

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NPOESoormit Re TLC 048321

. Notice No DEL \97041003 DLK ,

Date i

National Poilutant Disenarge Elimination System (NPDES) l, Permit Program PUBLIC NOTICE / FACT SHEE~

cf Dra't Modified NPDES Permit to Disenarge into Waters of the State Puolic Notice / Fact Sheet issued $y 4

tilinois EPA Division of Water Pollution Controi ,

Permit Section

- 2200 Churchill Road

Post Office Box 19276 Sonngf. eld. !!! ncis 62734 427S i 217/782-0610 i

Name and Aodress of Descnarger: Name and Accress of Facility' t

i Commonwetin Edison Company Commonwealth Edison Company

! Post Office Box 767. 35 FNW Braiowood Nuclear Power Station 1 Cnicage. illinois 60690-0767 Rural Route a1 Box 84

Braceville, tilinois 60407

• (Will County) i Tne Illinois Environmental Protection Agency (IEPA) nas made a tentative oetermina1on to issue an NPOES permit to oisenarge into ine waters of the state and has orepared a draft permit for the above named disenarger.

Lengtn of Permit

Aporoximately 3% Years Name of Receiving Waters: Kankakee River and tne Mazon River

Classification of Receiving Waters General Use i

j The following water quality and effluent standards and limitations were applied to the discharge-l Except as etnerwise noted the effluent concentrations and load limitations (includ.ng toxics) were based on effluent and, if applicable, water l Quality limitations specified in Illinois Pollution Control Board (IPCB). Rules and Regulations. Subtitle C: Water Pollution and/or 40 CFR ,

423.

a.

j The apolicant operates Braidwood Nuclear Power Station which is a nuctear fueled steam electnc generating facility located on Route 53 i

in Bracev!lle. Will County. tilinois. Two pressunzed water, nuclear fission reactors orovide steam to turbine generators with a maximum

! generating capacity of 2240 MW (SIC 4911).

t l Cooling and service water for station operations is withorawn from a 2640 acre cooling pond. Man condenser cooling water and service water is discharged to tne cooling pond for dissipation of waste heat and is recycled. A portion of the recycled water is discharged as

blowdown to tne Kankakee River. Make-up weter is pumped from the Kankakee River to the cooling pond to ecmpensate for evaporation and blowdown losses. Make-up water to tr.e sanitary and potable water supply systems is also withorawn from the Kankakee River

! Station process wastewaters are discharged to the cooling pond or the cooling pond blowdown line which discnarges to the Kankakee Piver. Station area runoff rs disenarged via two runoff collection area overflow disenarges. Stormwater runoff from the station switchyard and from the west side of the plant site is discharged to unnamed natural drainage ditches tnbutary to the Mazon River. The station area l

runoff and stormwater runoff combined alth the emergency cooling cond overflow in the unnamed drainage ditches tnbutary to the Mazon 2

River An existing outfall from tr e sewage treatment plant to the Mazon River is being maintained as an emergency backup.

, Regulated disenarges from Braidwood Nuclear Power Station to the Kankakee River are: No. 001 Cooling Pond Blowdown Line with aa average flow of 14 66 MGO: No. 001(a) Wastewater Treatment Plant Effluent with an average flow of 0.079 MGD; No. 001(b) Sewage Treatment Plant Effluent with an average flow of 0.017 MGD; No. 001(c) Radwaste Treatment System Effluent with an average flow of 0.032 MGD; No. 001(d) Demineralizer Regenerant Wastes with average flow of 0.028 MGD; and No. 001(e) Intake Screen Backwasn with an average flow of 0.11 MGD. Discharges from Braidwood Nuclear Power Station to the Mazon River, a inbutary to the Kankakee River.

j are: No. 002 North Site Stormwater Runoff Basin with an average ficw of 0.044 MGD; No. 003 South Site Stormwater Runoff Basin witn an average flow of 0.03 MGD and No. 004 Switchyard Area Runoff.

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Duosic NoticerFact Snset Dage 2 - NPCES Dermit NC l LOO 4832*

F!ow will be monitorec The enmary parameters to oe monitorea and hmited are AM. BCC,. total susoencec scues oil anc grease tota resicual cnior:ne anc temocrature Acciicatien is ceing made for continuation cf tne existing cisenarges wnicn are located in Will County Ilknois at latituce 4i

• t 5' 05' an:

tongitude 88* 08'00*

it is tne Agency 5 tentative cects.cn tnat uncer lihnots Pollution Contret Soarc regulauens tne following reacn of watercocv is net :: ass.6ec

'cr enmarf :entact use activities and :s net suopect to tne fecat :okferm water cuahty stancare cf 3511! Acr- :ce 300.209

~nss :ta .cermt ces ret centain rec.irements f:t :tsinte:::ce :: tne :is: arge trem cis:nat;e . m:es s, httaa ^; .: e e:e . --

stream nas oeen cetermined to be unsuitec to succort Anmary contact activities tswimming) cue to :nys: cat nvcroicgic :r geogra:r:i:

n6guration The following Mcdificatiens are crocosec. Tne mcnitonng frecuency for oil anc grease is being recuced from thveen to !!mentn fer Outtatis 00t(al and Octt:t Accitional monitonng recuirements are oeing adcec to Outfall 001. conceming tne usage cf cremine case: ::cc:ces Tne ehmination cf fecal cohform monitonng at Outfall 001(b) due to tne facihty oeing tentatrvery grantec a year rounc cisinfecuen exemetice in auty.1995

?.ionrtonng frecuencies anc recorung requirements were estabhsned by using the authonty set forth in IPCE. Suctitle O Water Doitutica Title 40. Section 122.48 and 122.44(i) of tne federal regulations. and/or using the autnanty proviced in Secton 402ta)(1) of tne Ciean Wate-Act. I Load hmitations were calculated as follows:

Average or Maximum Flow (MGD) X Concentration Limit (mg/l) X 8.34 = les/ day, and/or l (Aj (8) . Average Montnly Produdien or Daily Production X Effluent Limitation from Feceral Regulations = lbsicay Se e*:e-t 'imte: ens and monitonng requirements were imposed pursuant to Title 40. Section 122.45(h) of tne federal regutations anc K . ,: . ..:.c . .'.ater Pollution. 35111. Acm. Coce 304.102 on intemal waste streams 001(a). 001(b). 001(c). 001(c) and 001(e) since l

monitonng at tne ceint of cisenarge was impracticable due to diluuon.

The effluent hmitations and special conditions. if apphcacie. ats 3;;e...=u a a ;u... .e craft permn Interested persons are invited to submit wntten comments on the craft permit to tne IEPA at the above address The NPDES permit anc nctice numoeris) must appear on each comment page Any interested person may submit a wntten request for a pubhc neanng on tne craft oermit. Stating nis or ner name and address, the nature of the issues proposec to De raisec and the evicence procoseo to De presented with regards to those issues.

The acchcation, engineer's review notes including load hmet calculations. Public Notice / Fact Sheet, draft permit comments received and other documents are available for inspection and may be copied at the IEPA between 9.30 a m. and 3.30 p m. Monday tnrougn Fnday All comments en the draft permit and requests for htanno musi tx received by the IEPA not later than 30 days from the cate of this publication if wetten comments or requests indicate a significant degree of pubke interest in tne draft permit. tne permitting autnonty may, at its discretion. hold a public heanng. Pubhc notice will be given 30 days before any pubhc heanng For furtner information call the Pubhc Notice Clerk at 217/782 0610.

s

. ',; l WPOES ogrmit teo ILOO40321  % .

d' '

ilhnois Environmental Protection Agency .

Division of Water Pollution Controt 2200 Churenill Roao Post Office Box 19276 Sonngfietc. Ithnois 62794-9276 NATIONAL POLLUTANT OISCHARGE ELIMINATION SYSTEM Modified (NPDES) Permit Exciration Date. Septemoer 1. 2000 issue Date August 24.1995 Effective Date September 1.1995 Modif.catien Date.

N3me and Address of Permittee. Facility Name and Aodress

Commonwealtn Edison Company Commonwealtn Edison Company i Post Office Box 767. 35 FNW Braiowood Nuclear Power Station i Chicago. Ilknois 60690-0767 Rural Route #1. Box 84 i Braceville Ilknois 60G7

' (Will County) 1 Discnarge Numoer and Name. Receiving Waters:

2

No. 001 Cochng Pond Blowdown Line Kannakee River I

i No. 001(a) Wastewater Treatment Plant Effluent

! No. 001(b) Sewage Treatment Plant Emuent No. 001(c) Radwaste Treatment System Emuent i No 001(d) Deminerattzer Regenerant Wastes l No 001(e) intake Screen Bacxwash No 002 North Site Stormwater Runoff Basin Mazon River l No 003 South Site Stormwater Runoff Basin l No. 004 Switchyard Area Runoff

! I 1  !

I in comphance with the orovisions of the Ilknois Environmental Protection Act. Subtitle C. Rules and Regulations of the Illinois Pollution Control Board. and the FWPCA the above-named permittee is hereoy authonzed to discharge at the above location to the above-named receiving stream in accordance with the standard conditions and attachments herein.

1 Permittee is not authonzed to discharge after the above expiration date In order to receive authonzation to discharge beyond the f expiration date the permittee shall submit the proper apphcation as required by the Ilknots Environmental Protection Agency (IEPA) not ,

later than 180 days pnor to the expiration date.

8 i

l Thomas G. McSwiggin. P.E.

Manager. Permit Section

- Division of Water Pollution Cantrol 1

TGM.OEL\97041003.0LK l -

1 Daga 2 Mooficatict Data  !

' l j NPDES Permit No ILOO48321 4

Effluent Limitations and Monitonng 1

i LOAD LIMITS CONCENTRATION -

ibs/dav LIMITS mo/1 4 30 DAY DAILY 30 DAY DAILY SAMPLE SAMPLE j PARAMETER AVG MAX AVG MAX REQUENCY ~voE

)

1 i rom the e#ectue cate of this permit until Sectemoer 1. 2000. the effluent of tne fonowing disenargets) shall ce monitorea anc limitec at all times as fo6lows i Outfalusr C01 Cooling Pond Blowcown Line' I

{ This cischarge consists of Aporeximate : low f Concenser cooling water 11.31 MCO

2 House service water 1.3 MGD l

j 3 Essential service water 1.3 MGD 1

4 Demineralizer regenerant waste O.C23 MGD l

l. 5 wastewater treatment plant effluent 0 079 MGD l i 6 Raawaste treatment system effluent 0 032 MGD l 7 House service water strainer backwasn 0 03 MGD 8 Essential service water strainer backwasn 0 017 MGD 9 .' Sewage treatment olant efffuent 0.017 MGD l 10 Water treatment system filter bacxwasnes 0.03 MGD l

11 Rwer intake screen eacxwash 0.112 MGD

12. Cooling cond intaxe screen cackwasn 04MGD I i

2cw Daily Contmuous j

l pH See Special Condition No.1 1/ Week Grab i

Temperature See Special Condttron No 3 Daily Continuous j .

Total Residual Cnlonne" 0.2 1/ Month Grab" l Total Residual Oxidant" 0.05 1/ Month Grab"

*See Special Concitron No.12 j "Ste Special Condition No. 4 1

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- Paga 3 Mocificatien Oste NPOES Permit No ILOO48321 p ,

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Effluent Limitations and Monitonng LOAD LIMITS CONCENTRATION lbs/ day UMITS mo/I 30 OAv OAILY 30 DAY OAILY SAMPLE SAMPLE PARAMETER AVG MAX AVG MAX FREQUENCY WPE 1 Crom tne eMee:ive cate of this oermit until Sectemoer 1. 2000, the effluent of the following cisenargets) snail be monitorec and umitec at all times as follows.

Outfantsr 001(a) Wastewater Treatment Plant Effluent This disenarge consists of: Approximate Flow t Turbine building fire and oil sump

• 0.079 MGO a Turcine building floor drain tank

• i Turbine building floor drain sumos ii . Essential sersice water drain sumps ni. Condensate pit sumps b Tureine building equidment drain tank' c Units 1 and 2 tendon tunnet sumos

d. Auxiliarf coiler blowdown e Units 1 and 2 oiesel fuel storage tank sumps f Oil-water separator No 1 effluent

g. Secondary Side Oraim Water

2. Water treatment area floor and equipment drain sumps intermittent 3 Water treatment time softening clarator blowdown intermittent 4 Wastewater treatment system sand filter backwash 0.002 MGD

5. Condensate polisher regenerant wastes (Alternate Route) Intermittent 6 Demineralizer Regenerant Waste Orains (Altemate Route) Intermittent Flow Daily 24 Hour Total Total Suspended Solids 15.0 30.0 1/ Week 24 Hour Composrte

. Oil and Grease 15.0 20.0 1/ Month Grab

'These wastestreams may be directed to the Radwaste Treatment System depending on the results of the process radiation monttors.

- - - - - _ - - - - _ - _ _ . _ _ . _ , _ _ . _ _ _ _ _ - - . . _ . _ . _ _ _ _ _ , - - - - _ _ _ _ , _ _ _ _ . _ . , _ _ . _ , _ _ _ _ _ _ - - _ _ . _ _ _ _ , _ . - - _ - - - - . - ~ _ - - _ . _ _ _ - -- - -

she4 Mocir' cat:ce Cate NPDES Permit No iLOO48321 Effluent Limstations and Monctonng LOAD LIMITS CONCENTRATION

!bs/dav LIMITS mc/i 30 CAY DAILY 30 DAY DAILY SAMPLE SAMPLE 3PAMETER AVG MAX AVG MAX FREQUENCY 70E rom tne effective cate of tnis cermit until Septemoer 1. 2000. tne effluent of the following disenargetsi sna t ce monitorec anc nmitec at ait times as follows Outfall(s) 001(b) Sewage Treatment Plant Effluent" Aporoximate Flow 0.017 MGD (DMF 0.078 MGO)

Fiow Daily Continuous l

l pH See Soecial Condition No.1 1Meen Grac 7otal Suscenced Sonos 19.5 39 0 30.0 60.0 1 Meek 24 Hour Composite BCC, 19.5 39.0 30 0 60.0 1Meen 24 Hour Auea e aa rz. ~ no Glea;ut,a ? secc.ca . H !

Outfall(s;. C01(c) Raowaste Treatment System Effluent This cisenarge consists of. Approximate Flow. 0 032 MGD i Steam generater concensate blowcown Intermittent 2 Cooling jacxet olowdown intermittent 3 Aux;iiary building anc tureine building floor crains inte r.mitte nt a _auncr/ waste treatmen: system cra:ns 0.001 MGD 5 Chemical and volume control system drains intermit ent 6 Baron recycle system blowdown Intermittent

7. Radwaste deminerahzer regenerant wastes and filter backwash 0.002 MGD B. Reactor cuilding floor and equipment drains Intermittent

9. Turcine building floor crain tank (Altemate Route) Intermrttent 10 Tureine building fire and oil sump (Altemate Route) Intermittent 11 Tureine building equipment drain tank (Altemate Route) Intermittent 12 Evaporator wastewater intermittent Flow Daily Continuous Total Suspended Solids 15.0 30.0 tw eek Disenarge Tank Composite Oil ar'a Grease 15 0 20.0 1/ Month Grab "Outfall No. 001(b) Sewage Treatment Plant Effluent will normally be discharged to the Kankakee River via the cooling pond blowdown kne The existing outfall to the Mazon River will be maintained as an emergency backup. The permittee shall give notice to the Agency of any emergency discharge to the Mazon River. Applicable effluent limitations snall apply.

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4 .

9 Pigs 5 Modification O&ta f .

f NPDES Permit No. ILOO48321 %_ . . . . .

Emuent Limitations and Monrtonng l

LOAD LIMITS CONCENTRATION I tbs / day LIMITS mo/1 l _

50 DAY DAILY 30 DAY DAILY SAMPLE SAMPLE DARAMETER ,WG MM. AVG MAX FREQUENCY WPE l 1 rem ne effective date cf th's cermit until Septemoer 1. 2000. the emuent of the following disenarge(s) snati ce monitored and limitec at all times as follows:

i Outfalt(s) 001(d) Demineralizer Regenerant Wastes i

l This disenarge consists of Aporoximate Flow a 0.028 MGD ,

l

1. Make-up demineralizer regenerant waste ***

2. Condensate polisner regenerate waste ***

3. Regenerant enemical area crains 4 Portacie Demineralizer Regenerant Wastes Flow Daily Continuous Total Suspended Solids ' 15.0 30.0 1/ Week 8 Hour Comoosite 1

• "This wastestream may be attemately routed to the ><astewater treatment system.

Outfall(s): 001(e) River .ntake Screen Bacxwasn There snail be no discharge of collected deens.

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a j .' Pagt 6 -

Modification Osta 4

NPDES Permit No. ILOO48321 j Effluent Limitations and Monitonng i

LOAD LIMITS CONCENTRATION 3 tbs' day LIMITS moti 30 DAY DAILY 30 DAY DAILY SAMPLE SAMPLE

} PARAMETER AVG MAX AVG MAX FREQUENCY a TYDE f 1. From the effective date of this permit until Septemeer 1. 2000. tne effluent of tne following disenargetsi snalt ce monitored and limitec 7

at all times as fottows Outfall(sr 002 North Site Stormwater Runoff Basin l This disenarge consists of Approximate Flow-l

1. Parking lot runoff intermittent

2. Transformer area runoff Intermittent i 3 North station area runoff Intermittent 4 Turbine building. auxiliary building and waste intermittent j treatment budding roof drams intermittent See Special Condition No. 8

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Outfallt s)- 003 Soutn Site S:ormwater Runoff Basin i

q Approxtmate Flow 1

j intermittent i .

I See Special Condition No 8 i

1

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Outfall(s) 004 Switenyard Area Runoff i

J

! Approximate Flow i

intermittent 1 See Special Condition No 8 4

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• Ng3 7 Mocincetior' Data NPOES Permit No ILOO48321 Soecia! Conditions ScECIAL CONDmON 1 The cri snail oe in tne range 6 0 to 9 0 SPECIAL CONCmON 2 Samples tamen in comuliance with the eMluent monitonng recurrements snail ce taxen at a coint recresentative cf :ne discnarge cut :nce to entry into tne recerving stream SPECf AL CONCMON 3 Disenarge of wastewater from this facihty must not aione or in Comoination with otner sources cause the receiving stream to violate the following tnermallimitations at tne edge of the mixing zone whien is defined oy Section 302.211 litinois Aaministration Code Title 35. Chacter 1. Subtitle C. as amended.

A Maximum temocrature nse acove natural temperature must not exceed 5'F (2.8'C)

S Water temperature at reortsentative locations in tne main nver snall not exceed the maximum limits in the foilowing taole cunng more tnan one (1) percent of the hours in tne 12-montn pened ending with any month Moreover, at no time snati the water temoerature at suen locations exceed the maximum limits in the following taole by more than 3'C (17'Cl (Main nyer temocratures are temperatures of those portions of the nver essentiaily similar to Aid following the same thermal regime as the temperatures of tne main flow of the nyer.)

ds!f 3.2. Mar g A May Ang igjy A W.5L Sard, h Nov QggL

'F 60 60 60 90 90 90 90 90 90 90 90 60

'C 16 16 16 32 32 32 32 32 32 32 32 16 SDECrAL COND! TION 4 Chionne or bromine may net be discharged from eacn unit's main cooling condensers for more than two nours per day The recorted mean concentration and maximum concentration of Total Residual Chionne/ Total Residual Oxidant FRC/TRO) snail be cased on a minimum of tnree grao sampies taxen at approximate 6y five minute intervals at Outfall 001 The time 4

samoles were collected. the time and duration of oxidant dosing pened plus the montnly average and dcily maximum amount of oxidant acclied snail ce recorted on the Disenarge Monitonng Reports The reported average concentration of TRC/TRO is the 1

average of all values measured for a sampling event and the reported maximum concentration is the highest value measured for a singte grac sample Disenarge Menitonng Reports snaliindicate wnetner bromine and/or entonne compounds were used cunng the montn. A discnarge limit, as measured at the blowdown to tne Kankakee River. of 0.05 mg/l (instantaneous maximum) shall be acnieved for total residual oxidant (total residual chlonne/ total residual halogen) wt en bromine biocides are used for condenser biofouling control --

SPECIAL CONDITION 5 There snall be no discharge of polychionnated biphenyl compounds.

SPECIAL CONDITION 6. There snall be no discharge of complexed metal beanng wastestreams or associated nnses from chemical metal cleaning unless this permit has been modified to include the new discharge SPECIAL CONDITION 7 A Intaxe impacts will be reduced by limiting pumping from the nver dunng the peak entrainment penod. For a four week penod (last three weeks in May and first week in June), pumping will be allowed only dunng the day (between one hour after sunnse and one hour oefore sunset) In addrtion. dunng the four ween penod, pumping will be minimized dunng the day Pumoing will occur when needed to fill the freshwater holding pond and to maintain efficient operation of the cooling pond in an extreme emergency, and upon immediate nottfication of the Agency. Dumping could occur at night. Such pumping would cease as soon as tne emergency was over. Records of all pumping dunng the four-week penod will be maintained. Such records willinclude dates. number of pumps operating and start and end times.

l} fEf02TI $s A WG V b MD , M h T & w h ah & Coltb

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t Paga8 Mod 4 cation Oate l .

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.j NPDES Permit No ILOO48321 i i

) Soecial Condrtions SPECf t L CONDITION 2 l

! STORM WATER POLLUTION DREVENTION PLAN ISWPDD) 1 A

A storm water pollution prevention plan shall be develooed by the permrttee for the storm water assocated with incustnat actnnty

(, at this factity. The plan sha!lidentify potential sources of pollution which may be expected to affect the cuahty of storm water discr$arges associated with the industnal actMty at tne faclity in additiort. the plan snall desenbe and ensure the impHementation j {

of practices which are to be used to reduce the pollutants in storm water discharges assocated with industrial activity at the facility and to assure comphance witn the terms and conditions of this permit. l

.; . l MMIU4I. h

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E 7 The plan snalt be completed within 180 days of the effective date of this permit. Plans snali provide for compiiance with tne

terms of tne plan within 365 aays of the effectrve date of this permrt. The owner or operator of tne facahty snall make a copy of the plan available to the Agency at any reasonable time upon reouest. [ Note. If the plan has already been developeo and implemented, it shall be maintained in accordar*ce with all requirements of this specal condition )

a d

C The permittee may be notified by the Agency at any time that the plan does not meet the requirements of this condition. After i

suen notification. the permittee shall make changes to the plan and snall submit a written certification tnat the reauested enanges have been made. Uniess otherwise provided. the permittee shall have 30 days after such notification to make the changes i

} D The disenarger snail amend the plan wnenever tnere is a enange in construction, operation, or rnaintenance whien may affect

• the disenarge of significant ouantities of pollutants to tne waters of the State or if a facihty insoection reovired oy paragraon G of tnis condition indicates that an amendment is neeoed. The plan should also be amenced if the discharger is in violation of any conditions of tnis permit. or has not acnieved the generat objective of controlling pollutants in storm water desenarges.

) Amendments to the pian shall be made witnin the snortest reasonable pened of time. and snail be proviced to the Agency for review upon request l E. The plan shall provide a description of potential sources which may be expected to add significant ouantities of pollutants to i

storm water disenarges, or whien may result in non. storm water discharges from storm water outfalls at the facihty The plan shalt include, at a minimum, the following items =

i

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j 1 A topographic map extending one-quarter mile beyond the property boundanes of the fachty, showing' the facahty. surface I

water booies wells (incuding injection wells), seepage pits infittration ponds. and tne disenarge points where the fachty s

{ storm water disenarges to a municpal storm drain system or other wner oody. The recuirements of tnis paragraph may i be included on the site map of approonate i

, 2 A site map showing-4 4

i i The storm water conveyance and discharge structures.-

i u

ll An outhne of the storm water drainage areas for each storm water discharge point.

j in Paved areas and buildings:

Iv.

Areas used for outdoor manufactunng, storage. or disposal of signrficant matenais, including activities that generate j signrficant quantities of cust or particulates v

Location of existing storm water structural control measures (dikes, covenngs. detention fachties, etc.).

j vi Surface water locations and/or municpal storm drain locations vii Areas of existing and potential soil erosion; viii Vehicle service areas; 1

ix. Matenalloading, unloading, and access areas.

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• - Pag 1r 9 Modifiestion Cata NPOES Permit No. ILOO4832t 1

Soecial Conditions - . .

l 3 A narrative desenption of the following:

4 i Tne nature of the rncustnal activities cenductec at the site. including a descnotion of significant matenais tnat are trutec. stored or disposed of in a manner to allow exposure to storm water; it. Matenals. equipment. and veniete management practices employed to minimize contact of significant matenais witn

) storm water discharges;

)

i sii Existing structural and non structital control measures to reduce pollutants in storm water cisenarges l

iv Industnal storm water disenarge treatment facilities.

v. Methods of onsite storage and disposal of significant matenals; 3

A A list of the types of pollutants tnat have a reasonable potential to be present in storm water disenarges in significant I quantities.

5 An estimate of the size of the faelity in acres or square feet. and the percent of tne factrty that has imoervious areas sucn 4 as pavement or buildings.

- 6. A summary of existing sampiing data desenbing pollutants in storm water disenarges.

Tne plan sna!! describe the storm water management controts wnien will be implemented by the faolity The approonate controts snail reflect toentified existing anc potential sources of pollutants at the faolity. The desenption of the storm water management Centrols shallincluce.

1. Storm Water Pollution Prevention Personnel - Identification by job titles of the individuals wno are responsible for developing, implementing. and revising the plan.

2 Preventrve Maintenance . Procedures for inspection and maintenance of storm water conveyance system devices such as oil / water separators. catch basins, etc., and inspection and testing of plant equipment and systems that could fail and result in discharges of pollutants to storm water.

3. Good Housekeeping . Good housekeeping requires the maintenance of clean, ordetty faolity areas that discharge storm water. Matenal handling areas shall be inspected and cleaned to reduce the potential for pollutants to enter the storm water conveyance system.

4 Spill Prevention and Response identification of areas where significant matenals can spill into or otherwise enter the storm water conveyance systems and their accompanying drainage points. Speerfic matenal handling procedures, storage requirements, spill clean up equipment and procedures should be identified, as appropnate. Intemal notification procedures for spills of signrficant matenals should be established.

5 Storm Water Management Practices . Storm water management practices are practices other than those which control the source of pollutants. They include measures such as installing oil and gnt separators. diverting storm water into retention basins, etc. Based on assessment of the potential of vanous sources to contnbute pollutants, measures to remove pollutants from storm water discharge shall be implemented. In developing the plan, the following management practices shall be considered:

i. Containment - Storage within berms or other secondary containment devices to prevent leaks and spills from entenng storm water runoff, it . Oil & Grease Separation - Oil / water separators booms, skimmers or other methods to minimize oil contaminated storm water discharges; iii. Debns & Sediment Control Screens. booms. sediment ponds or other methods to reduce debns and sediment in storm water discharges:

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s e peg

• 10 f

Modification DEte

> NPDES Permit No. ILOO48321 i

Soecial Cendrtions 4

, l iv i Waste Chemical Disposal Waste chemicals such as antefreeze. degreasers and used oils shat! be recycied or disposed of in an approved manner and in a way wnich prevents tnem from entenng storm water disenarges.

v t Storm Water Diversion Storm water diversion away from matenats manufactunng, storage ano otner areas of potential storm water contamination.

i vi Covered Storage or Manufactunng Areas Covered fuehng operations, matenats manufactunng and storage areas to prevent contact with storm water 6

" Set.iment and Erosion Prevenoon The plan shall noentify areas whien due to topograpny, activities. or otner factors. nave a hign potential for significant soil erosion and desence measures to kmit erosion i

7 Emoloyee Training - Employee training programs shallinform personnel at allleve!s of responsibehty of the components and goals of tne storm water pohution control plan. Training should address topics suen as spill response. good housekeeping and matenal management practices. The plan shall identify penodic dates for such training 8

Inspection Procedures - Quahfied plant personriel snalt be identified to inspect designated eouipment and plant areas A tracking or follow-up procedure shall be used to ensure approonate response has been taken in response to an inspection inspections and maintenance activities shall De documented and recorded G

The permittee snali conduct an annual facility inspection to venty that all elements of the plan. including the site map. potential l

pollutant sources. and structural and non-structural controls to reduce pollutants in industnal storm water disenarges are accura:e tne plan Ocrewa: ions that require a response and the appropnate response to the observation shall be retained as part of Receros occumenting significant opservations made cunng tne site inspection shall be submitted to the Agency m accordance witn tne repomng requirements cf tnis permit H.

This plan should bnefly desenbe the appropnate elements of other program requirements. including Spill Prevention Control an Countermeasures (SPCC) plans recuired under Section 311 of the CWA and tne regulations promulgateo tnereunde anc Ber l

Management Programs under 40 CFR 125100 i

Tne plan is consicered a report that shall be available to the pubhc under Sect.on 308(b) of tne CWA The permittee may c porttons of tne plan as confidential business information. including any portion desenting facihty secunty measures J

The plan shallinclude the signature and title of the person responsible for preparation of the plan and include the date of initial preparahon and eacn amendment thereto REPORTING K '

The facihty shall submit an annualinspection report to the Ilknois Environmental Protection Agency The report shallinclude results of the annual facility inspection which is required by Part G of the Storm Water Pollution Prevention Plan of this permi'..

The report snall also include documentation of any event (spill. treatment unit malfunction. etc.) which woutc recuire an inspection. results of the inspection. and any subsequent corrective maintenance activity. The report shall be compieted and signed by the authonzed facility employee (s) who conducted the inspection (s)

L The first report shall contain information gathered dunng the one year time penod beginning with the effective date of under this permrt and shall be submrtted no later than 60 days after this one year penod has expired Each subsequent report shall contain the previous year's information and shall be suDmitted no later than one year after the previous year's report was due M

Annual inspection reports shall be mailed to the following address-

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f N, e

Aags it Mocification Cate k '*

NPOES Permit No. ILOO48321 ._

1 Soecial Concitrons l

i j lthnois Environrr. ental Protecnon Agency

Division of Water Pollution Control i Comonance Assurance Secuen i

Annuaiinspecten Recort l

j 2200 Chureniil Roac P O. Box 19276 j Sonngfield. Ilknois 62794 9276 i l

I N if tne fac:hty cerforms inspecuens more frecuently than required bt r*.is cermit. the results snait ce inc:uced as accttionai informauen in tne annual report.

SoECf AL CONDITION 9 Disenarge of staten cochng pond water to adiacent impoundments ownea ey the oerm:: tee. to reoiace water whien is witnerawn from tnese impoundments for station operations dunng penods of low flows in the Kannakee f r wnen tne stat:on l must decouple its operations from tne nver. is hereoy cermitted for these emergency penoas. No monitor" required for tnis l Dermitted activity. The IEPA shall be promptty notified dunng suc.9 operations.

SPECIAL CONDITf0N 10 The permittee shall record monitonng results on Disenarge Monitonng Report Forms using one suen form l for eacn cisenarge eacn month.

The completed Disenorge Monitonng Report ferms shall De suemitted to IEPA no later than the 28tn of tne following montn.

unless otnerwise soec:fie'd oy tne the permitting autnonty.

Discnarge Monitonng Reports snali ce manied to the IEPA at the following address-liknots Environmental Protection Agency Division of Water Pollunon Control 2200 Churenill Road Sonngfield. Ilknois 62706 Attention- Compliance Assurance Section SPECIAL CONDrTION 11 The " upset defense provisions of Title 40. Section 122.41(n) of the Federal Regulations are hereby incorporated into this permit by reference.

SPECIAL CONDITION 12. An emergency cochng pond overflow exists tncutary to an unnamed drainage ditch which is tnbutary to tne Mazon River. Discharges from this overflow shall be subject to the bypass provisions of 40 CFR 122.41(m).

SPECIAL CONDITION 13. The permittee snalt submit a completed Form 2F as soon as conditions allow, for Outfall 002 and Outfall 003. Based or. ..le new informauen the Agency may choose to modify the permit after public notice and opportunity for heanng.

SPf(CIAL CONDITION 14. For Discharge No. 001(b), any use of chlonne to control shme growths, odors or as an operatm.ial control.

etc. shall not exceed tne hmrt of 0.05 mg/l (daily maximum) total resxsual chlonne in the effluent. Sampling is required on a dady grab basis dunng the chtonnation process. Reporting shall be submitted on the (OMR's) on a monthly basis. j

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.tEnseed e in e peanist me neemer t@tussematei ende govera n o As --:.iuiwirie. c m . m.a., one e c.a ,s, d.un-pe. ,,,,,e.

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c. s us o. 6 i en. .e 1 to) that wie ocwvity nos oc. tween o. ie ecc .ewen '

no reevn vi ine (26:

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