ML18005A308

Forwards Util 880127 Ltr to State of Nc,Requesting Authorization to Install Dechlorination Sys for Cooling Tower Blowdown

ML18005A308
Person / Time
Site:	Harris
Issue date:	02/23/1988
From:	Loflin L CAROLINA POWER & LIGHT CO.
To:	NRC OFFICE OF ADMINISTRATION & RESOURCES MANAGEMENT (ARM)
References
NLS-88-033, NLS-88-33, NUDOCS 8803010005
Download: ML18005A308 (19)

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$ )~E) REGULA (Y INFORMATION DISTRIBUTI SYSTEM (BIDS)

ACCESSION PIBR: 8803010005 DOC. DATE: 88/02/23 NOTARIZED: NO DOCKET 0 FACIL: 50-400 Shearon Harris Nuclear PoUjer Planti Unit ii Carolina 05000400 AUTH. NAME AUTHOR AFFILIATION LOFLINT L. I. Carolina Poeer 5 Light Co.

REC IP. NAME RECIPIENT AFFILIATION Document Control Branch (Document Control Desk)

SUBJECT:

Forwards util 880127 ltr to State o'f NCi requesting authorization to install dechlorination sos for cooling toeer bloedoen.

DISTRIBUTION CODE: AOOID COPIES RECEIVED: LTR i ENCL I SIZE:

TITLE: OR Submittal: General Distribution NOTES: Application f or permit reneeal f i led. 05000400 RECIPIENT COPIES RECIPIENT COPIES ID CODE/NAME LTTR ENCL ID CODE/NAME LTTR ENCL PD2-1 LA 1 0 PD2-1 PD 5 5 BUCKLEY> B 1 1 INTERNAL: ACRS 6 6 ARM/DAF/LFMB 1 0 NRR/DEST/ADS7E4 1 1 NRR/DEST/CEBSH7 1 1 NRR/DEST/MTB 9H NRR/DEST/RSB 8E 1 1 NRR/DOEA/TSBiiF 1 LRB12 1 1 OGC 15-B-18 1 0 01 1 RES/DE/EIB 1 1 EXTERNAL: LPDR NRC PDR NSIC TOTAL NUMBER OF COPIES REQUIRED: LTTR 26 ENCL 23

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N SSCK Carolina Power & Light Company FEB >3 lsBB Serial: NLS-88-033 8803010005 880228 PDR ADOCK 05000400 P PDR; United States Nuclear Regulatory Commission ATTENTION: Document Control Desk Washington, DC 20555 SHEARON HARRIS NUCLEAR POWER PLANT DOCKET NO. 50-000/LICENSE NO. NPF-63 NPDES PERMIT Gentlemen:

Carolina Power R Light Company (CPRL) hereby transmits a copy of a request for authorization to install a dechlorination system for the Shearon Harris Nuclear Power Plant (SHNPP) pursuant to the National Pollutant Discharge Elimination System (NPDES)

Permit. This information is being transmitted as required by Section 3.2 of Appendix B to the SHNPP operating license.

If you have any questions regarding this submittal, please contact me at (919) 836-6202.

Yours very truly, L. I. Loflin Manager Nuclear Licensin Section LIL/jDK/bmc (53733DK)

Enclosure cc: Mr. B. C. Buckley W/A Dr. 3. Nelson Grace W/A Mr. G. F. Maxwell W/A

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411 Fayetteville Street o P. O. Box 1551 o Raleigh, N. C. 27602

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CPQL Carolina Power tt Light Company Shearon Harris Energy 6 Environmental Center Route 1, Box 327 New Hill, North Carolina 27562

'Jgg 3V 1988 Serial No.: ESS-88-8 Mr. R. Paul Wilms, Director N. C. Division of Environmental Management P. 0. Box 27687 Raleigh, N.C. 27611-7687 RE: Shearon Harris Nuclear Power Plant NPDES Permit No. NCQ039586 Authorization to Install Dechlorination System

Dear Mr. Wilms:

Pursuant to the subject NPDES permit, it is requested that the Division of Environmental Management (DEM) grant authorization to install a dechlorination system for the cooling tower blowdown (outfall 001) at Carolina Power & Light Company's (CP&L) Harris Plant in Wake County. As experience has been gained since plant operations began in May, 1987, it has become apparent that a dechlorination system could be the most effective method of assuring compliance with NPDES permit time limit's on the discharge of total residual chlorine (TRC).

The new system will be installed near the cooling tower blowdown discharge weir just prior to discharge into the blowdown pipeline. Dechlorination will be accomplished by injecting a solution of ammonium bisulfite in sufficient quanities and at appropriate times to scavange any TRC and leave no more than 1 part per million (ppm) of excess ammonium bisulfite. Enclosed is a description of the dechlorination system that will be installed, the material safety data sheet and aquatic toxicity information on the product that will be added, and a description of how dose rates will be calculated.

This installation will make use of a standard declorination system package manufactured by Betz Laboratories, Inc. This project was discussed briefly with Mr. Gil Vinzani of your staff, who indicated that due to the relatively simple nature of this modification and the use of a standard design, a full engineering report with formal plans and specifications were not necessary to obtain DEM approval. The initial installation will be a field-routed arrangement until additional operating experience can be gained and further decisions are made. regarding the long-term need of a dechlorination system and optimum physical arrangement.

CP&L expects to begin use of this system in the spring of 1988 when temperature increases will require the use of additional chlorine to control biological fouling of the condenser. Should you require further information

or have any questions, please contact Mr. Cam Wheeler at 836-6725 in our general office.

Yours very truly, p<iginsl Signed By y, g. WARRINER G. H. Warriner Manager Environmental Services CCW/ekb/dsm (88-1CCW) cc: Mr. A. Mouberry Mr. R. W. Van Tilburg bcc: Mr. C. C. Carmicheal Mr. M. R. Greeson Mr. J~ Mo McDowell Mr. Jo R. Sipp Dr. B. J. Ward

Enclosure to ESS-88-8 Shearon Harris Nuclear Power Plant Dechlorination System Description Contents ~Pa e Purpose and Dose Rates Manufacturer's Brochure Material Safety Data Sheet Aquatic Toxicity Data Site Plan Drawing of Pump System (88-4CCM/dsm)

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ENCLOSURE TO ESS-88-8 PAGE 1 Dechlorination of SHNPP Coolin Tower Bloudoidn The dechlorination product (Betz Powerline 3680) and the Accufeed 3000 feed system will be used for two primary purposes:

1) During the startup testing of the gaseous chlorine and feed system, it is possible that the NPDES limits on chlorine concentration and persistance may be violated. With the dechlorination in use, we will be able to optimize the treatment levels of chlorine without risking violation of the permit.

2) During the summer months, it may be necessary to chlorinate more often than once per day and maintain a residual longer than the permitted times and at higher concentrations in order to prevent biological fouling of the condenser. The dechlorination program will allow us to prevent fouling by adding as much chlorine as needed.

Calculation:

The 3680 (70X ammonium bisulfite) has been formulated such that 2 ppm of product will scavenge 1 ppm of TRC (total residual chlorine). It is advised to feed a slight excess (1 ppm excess) to serve as a buffer against any excursions. The amount of product to be added is determined by the TRC level (plus 1 ppm of excess) and the blowdown flow rate. A chart has been generated which allows the TRC, blowdown rate, and dechlorination pump setting necessary to achieve 100K scavenging plus 1 ppm excess product. This 1 ppm excess will yield 0.57 ppm free sulfite, All studies to date have not shown any depletion of 02 levels in the presence of this low amount of S03.

Calculation example'.

Assume TRC = 0.7 ppm Blowdown rate = 5,000 gpm To scavenge all TRC and generate 1 ppm excess 2.4 ppm Powerline 3680 should be fed.

5000 el/min. x 3785 mL/ ellen x ~2.4 m = 32 mL of produot per minute 1,000,000 ppm 1.4 sp.gr.

Reactions:

NH4S03H + C12 + 2H20 ~ NH40H + H2S04 + 2HCl

((208CCW/.>><s)

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~~885'z PAGE 2 Tte Rijlxeiu@MW wi'w Manoyemerc Oeoen d soli Loocnmea vc MEETING EPA CHLORINE DISCHARGE LIMITS THE PROBLEM MONITORING PROGRAM ASSURES

~ Complying with the new Environmental Protection Agency PERFORMANCE chlorine discharge reguiations Whether minimization, dechlorination, or other alternatives

~ Avoiding costly outages and lost efficiency caused by are chosen, continuous program monitonng provides the best assurance against costly biological foukng. Using the macro and microorganism fouling Substrate Fouling Monitor BETZ field engineers can evaluate overall system performance and help you optimize chlonne THE SOLUTION addition rates.

The EPA has outlined two possible solutions:

Changes in fouling potential caused by spawning cycles,

~ Chlorine minimization seasonal lluctuations, and operating parameters can be de-

~ Dechlorination tected and the program adjusted to avoid serious fouling of the cooling system.

The BETZ BIOSAFE program uses both of these technol-ogies to solve the problem. BIOSAFE is not a chemical. It is a service program tailored to help you maximize chlorination efficiency through refinements in application technology and dechlonnation chemistry while achieving compliance with chlorine discharge regulations.

IMPLEMENTINGTHE SOLUTION Chlorination requirements for macro and microorganisms are carefully assessed using the specially designed Substrate Fouling Monitor. Removable, preweighed growth substrates are maintained in contact with flowing cooling water. follow-ing a suitable exposure period the total fouling weight is t .:

determined and the fouling organisms identified. The BETZ field engineer will work with your staff to develop an optimum chlorination program consistent with your discharge permit. g H The results of this chlorine minimization study will determine whether further measures such as dechlorination, chlorine penetrating aids, or alternate biocides are required.

DECHLORINATION FIGURE 1 Chlorinator Actuated Dechtonnation System As part of the BIOSAFE program, BETZ offers packaged dechlorination feed equipment on a trial basis. This avoids For cooling systems with modest dechlorination requirements. the the need to commit to a large capital expense and contend manual rate adjustment, On.Olf control system is actuated by a with long equipment lead times to evaluate dechlorination on signal from your chtonnator. Adjustable time delay relays allow the feed equipment to be tailored to your cooling system's specific your unit. The rugged feed equipment is engineered to pro- requirements.

vide high reliability and low maintenance (Fig. 1). The system uses a concentrated, cost effective liquid dechlorinating agent for ease of handling, improved safety, and ultimate reliability.

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TREVOSEE P~ 19047 E'<CLOSURE TO PAGE 3 ESS-88-8 BETZ ÃA TER I AL SAF ETY DATA SHEET 24 HOUR EMERGENCY TE! EPHONE (HEALTH GR ACCIDENT) 215/355-3300 EYES

PRODUCT= POWER INE PRODUCT APP l SECTION I I CAT I ON 3680

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{PAGE lNFORMAT ION ON PHYSICAL HAZARDSE HEALTH HAZARDSE PEL'S AND TLV'S fOR SPECIFIC PRODUCT INGREDIENTS AS REQUIRED BY THE OSHA HAZARD COMMUNICATIONS STANCARC ARE LISTED ~ REFER TO SECTION 4 {PAGE 2) FOR OUR ASSESSMENT OF THE POTENT IAL ACUTE AND CHRONIC HAZARDS OF THIS FORMULATIONCORROSIVE AMMONIUM BI SULFITE++<CAS410192 30-OE P EL NONE; TLV NONE

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PH- AS IS SECTION 2 TYPICAL PHYSICAL DATA t APPRQX ) 4~9 ODOR- MILD FL PT ~ {DEG F) - >200 SETA(CC) SP>>GR { 70F) CR DENS I TY= I 406 VAPOR PRESSURE( MMHG ) = 35 VAPOR DENSITY{AIR=1)= <1 V ISC . CPS70F= 26 ZSOLUBILITY{HATER)= 100 E VAP RAT E- <1 ETHER=1 APPEARANCE= YELLOW PHYSICAL STATE- LIQUID FREEZE POINT{DEG F)- 10 SECT ION 3 -REACTIVITY DATA SPECIAL FOR DE-961EDE-962'EE PHYS THERMAL DECCMPQS ITION (DESTRUCT IVE F IRES ) YIELDS ELEMENTAL OXIDES REDUC ING AGENT SOLUTI CNS GF THIS PRODUCT HILL EMlT TOXIC FUMES OF SULFUR DIOXIDE (S02) EITHER WHEN HEATED OR UPON CONTACT HITI; ACID CR ACID FUMES ~ RELEASES AMtIChIA UPON CONTACT WITH BASES ~

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BETZ M RIAL SAF ETY'ATA SHEET ( E 2 GF 3 ENCLOSURE TO ESS-88-8 PRODUCT- POWERLINE 368C PAGE 4

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NO EVIDENCE OF POTENTIAL CHRONIC EFFECTS ~

HED ICAL COND I T IONS AGGRA VAT ED NOT KNOWN SYHPTQMS OF EXPOSURE CAUSES SEVERE IRRITATIONS BURNS OR TISSUE ULCER'ATION MI TH SUBSEQUENT SCARRING SKIN CONTACT~>4 REHOVE CLOTHING MASH AREA WITH LARGE:AMOUNTS OF SOAP:SOLUTION QR WATER FOR 15 HIN ~ 'IMHEDIATELY CONTACT PHYSICIAN EYE CONTACT>>>

IMMEDIATELY FLUSH EY ES WIT H WAT ER FOR 15 HINUTES ~ IMMEDIATELY CCNTACT A PHYSICIAN FOR -ADDI TICNAL TREATHENT INHALATI GN EXPOSURES>4 REMQVE VICTIH FROM CONTAMINATED AREA APPLY NECESSARY FIRST AID TREATHENT IHMEDIATELY CONTACT A PHYSICIAN~

INGESTION>>>

DO NGT FEED ANYTHING BY MOUTH TO AN UNCONSCIOUS OR CONVULSIVE VICTIM DILUTE CGNTENTS OF STGHACH INDUCE VOHITING BY GNE QF THE STANDARD METHODS IMMEDIATELY CONTACT A PHYSICIAN SECT ION 6 SPILL INSTRUCTIONS>>>

SPILLT DIS'POS AL AND F IRE INSTRUCTIONS VENTILATE AREA USE SPECIFIED PROTECTIVE EQUIPHENT CGNTAIN AND ABSORB ON ABSORBENT HATERIAL PLACE IN WASTE DISPOSAL CONTAINER THE WASTE CHARACTERISTICS GF THE ABSCRBED MATERIAL OR ANY CONTAMINATED SOIL SHOULD BE DETERMINED IN ACCORDANCE WI TH RCRA REGULATIONS FLUSH AREA WITH WATER WET AREA MAY BE SLIPPERY IF SGgSPREAD SAND OR GRI T ~

DISPOSAL INSTRUCT IONS>>4 WAT ER CONTAMINATED hITH THIS PRODUCT HAY BE SENT TO A SANITARY SEWER TREATMENT FACILITY'N ACCORDANCE WITh ANY LOCAL AGRE2MENTgA PERMITTED WASTE TREATHENT. FACILITY OR DISCHARGED UNDER A NPDES PERMIT PRODUCT (AS IS )-

INC INE RAT E OR BURY IN AP PROVE 0 L AND F ILL F IRE EXTINGUISHING INSTRUCTIONS++>

FIREFIGHTERS SHOULD WEAR POSITIVE PRESSURE SELF-CONTAINED BREATHING APPARATUS(fULL FACE-PIECE TYPE)

DRY CHEHICAL gCARBON DI GXIDEgFGAH OR WATER

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ENCLOSURE TO Esp-88-8 BETZ RIAL SAFETY DATA SHEET ( GE 3 CfPPGE 5

PRODUCT: PQhERLINE 3680

-SECTION 7 SPECIAL PROTECTIVE ECUIPYENT VENTILATI CN PROTECTION>+>

ADEQUATE VENTILATIGN TO HAlNTAIN AIR CONTAHINAhTS BELOW EXPCSURE LIHlTS RECOHMENOEO RESPIRATORY PROTECTION>44 IF VENTILATION IS INAOEQUAT E OR SIGNIFICANT PRODUCT EXPOSURE 1$ LIKELYI USE A RESPIRATOR WITH ORGANIC VAPOR CARTRICGES RECOHMENDED SKlN PROTECT ION+4>

GAUNTLET-TYPE RUBBER GLOVES,CHEHICAL RESISTANT APRON REPLACE AS NECESSARY RECOHM ENDED EYE PROTECT I GN4>4 SPLASH PROOF CHEHICAL GOGGLES FACE SHIELD SECT IQN 8 -STORAGE ANO HA NDLING PRECAUTl CNS STORAGE INSTRUCTIONS>>>

KEEP CONTAINER CLOSED PROTECT FROM FREEZING ~ KEEP AWAY FROM AClDS ANO BASES HANDLING INSTRUCTIONS>>>

IHMEDIATELY REMOVE CCNTAMINATED CLOTHINGgQASH BEFCRE REUSE CORROSIVE TO SKIN CORROSIVE TO EYES SECTION 9 FEDERAL REGULATIONS OSHA t 29CFR)-FOR RESPlRATORY PROTECTION USE PROPERLY FITTED HSHA/NIGSH AP PROV ED RESP IRATORY EQUlP MENT WITHIN USE LIMITATI ONS~ CTHE R Wl SE g USE SUPPLlED AIR QUANTITY= AS IS APPARATUS'EPORTABLE PRODUCT IHAZARDCUS SUBSTANCE) 617 GALS (AMMONIUM B ISULF ITE)

RCRA {40CFR) - IF DISCARDED i THIS MATERIAL 'EARS HWI4 DOT(49CFR ) CLASSIF ICATIGN= C GRRCSI VE TO SKIN DOG?

NFPA/HMIS = HEALTH 2 FIRE 0 .5 REACTIVIT> 0 7 SPECIAL CQRR WW44W~4444N4CW4N44NWCA4O4WWW444%4444O4A4'44%44444%4%4$ 444 4444W4OO4444W4W4 THIS DOCUMENT IS PROV IDED TQ SUPPLY ALL THE IhFQRHATlON NECESSARY TQ COMPLY WITH OSHA HAZARD COMMUNICATIONS REGULATI CNSg ANO RIGHT-TG-KNGW REQUIREHEh'TS WHILE THE INFORMATION AND RECGHMENDATIQNS SET FORTH HEREIh ARE BELIEVED TC BE ACCURATE AS OF THE DATE HEREOF BETZ LABORATORIES HAKES NQ hARRANTY hITH RESPECT THERETO ANO OISCLAIMS ALl LIABILITY FROM REAIAhCE THEREON HAROLD H ):ERSl; ENVIRONHENTAL I NFQRHAT ION CCCRC INATGR REVI SIGNS HAVE OCCURREC IN SECTlCNS '8 ANO 9 ~

t ENCLOSURE TO PAGE 6 ESS-88-8 BETZ LABORATORIES, INC.

4636 SOMERTON ROAD, TREYOSE, PA. 19047 11/04/87 PRODUCT: POWERLINE 3680 AQUATIC TOXICOLOGY DAPHNIA MAGNA OX MORTALITY: 100 MG/L 48 HR. SCR. 100% MORTALITY: 250.0 MG/L BLUEGILL SUNFISH OX MORTALITY: 100 MG/L 48 HR. SCR. 1004 MORTALITY: 500.0 MG/L FATHEAD MINNOW OX MORTALITY'0 MG/L 96 HR. RNWL 100K MORTALITY: 200 MG/L

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