July 8, 1992 ,' P. Or B

July 8, 1992 , . . . . . '

*" , - - • - :!_- :__ __ . ' . " NORTH CAROLINA

Mr. Gu H.- AydlettChief, Industrial wastes DivisionHamptoiv;Hoads Sanitation DistrictP. Or B<5x 5000Virginia 'Beach, Virginia

VIRSIITZA SLOWER - YORKTOWN POWER STATIONWASTEWATBR DISCHARGE SEHHIT APPLICATION

Dear

Virginia Power is pleased to submjft jour application for anindustrial wastewater discharge permit for the discharges at ourYorktovn Power Station, including the proposed discharge of ~the\Chisman creek Wastewater System.

A permit for the power station, specifically the proposed dischargeat the Chisman Creek site, is necessary for several reasons:

1. Treatment costs' have increased. Virgi A Power is spendingapproximately $4,000 per month to^operate the on-sitetreatment plant. Costs are expected to increase. The cost toinstal1 a gravity connection to the sewer system isapproximately $1S,QQO.

2. On-site wastewater ' "treatment operations have beendiscontinuous. Maintenance outages and required outages dueto low stream flow conditions have resulted in erratic plantoperations. The outages coupled with less than expectedwastewater flow rates are lengthening the period of wastewatertreatment, Use of the sewer system for treatment willeliminate these outages and shorten the period required totreat site wastewater. , y

3. The planned period of discharge to the sewer system islimited. A study performed fay GAI Consultants, Inc., whichwas submitted to you in'our January 17, 1992 letter, reportedthat at a constant discharge rata at 22.6 gpm, the site wouldreach steady state conditions in 4i months. Lower dischargerates would lengthen the discharge period* Onca steady stateconditions are achieved, we expect to directly discharge sitewater to Chisman Creek.

AR000002

Mr, Guy M. Aydlet.July 9, 1992

Finally, I fceliev9 it is inr*-i:tant to note that use of the sewersystem for treatment of site wastewat r was not the initialtreatment selection, Virginia Power has been providing on-sitetreatment since August, 1989. The treatment plant, which cost morethan $500,000 to install, has treated more than 17,000 000 gallonsof wastewater to date. These operations have significantlyimproved raw wastewater quality. Data showing ths improvement wassubmitted to you in our January 17, 1992 letter. However, wecannot assure that continued operation of the treatment plant willfully achieve the public goals established for the site in a timelyand cost-effective manner. ' Therefore, we are seeking treatment bythe District's sewer system as an option of last resort. For thesereasons, issuance of a permit does not establish a precedent forthe District.

We request your timely evaluation of our application. If anyquestions arise or additional information is needed, please contactBob Williams of my staff at (804)273-2994.

Sincerely,

B. M. Marshall, P.E.ManagerWater Quality

Attachments

cc: Mr. Paul LeonardU.S.EPA, Region III841 Chestnut BuildingPhiladelphia, PA. 19107

Mr. Tim LongsVirginia Department of Waste Managementlltla Floor, James Monroe Building I101 North 14th Street IRichmond, VA 23219

Mr. Martin FisherDirectorPublic UtilitiesYork CountyP.O. Box 532Yorktown, Va 23690

AR000003

. ..Industrial Categories* .,

[ ] Aluminum Forming[ ] Asbestos Manufacturing[ ] Battery Manufacturingf 1 Can Making[ J Carbon Black[ j Coal Mining[ j Coil CoatingI ] -copper Forming[ j Electric and Electronic Components Manufacturingj ] Electroplatingf ] Feedlots . __._[ j Fertilizer Manufacturing[ j Foundries {Metal Molding and Casting)t j Glass Manufacturing[ j Grain Mill* . . . . _ .[ ] Inorganic Chemical •[ j Iron and Steel .[ j Leather Tanning and Finishing[ ] Metal Finishing{ J Nonferroua Metals Forming[ ] Konferrous Metals Manufacturing{ ] Organic Chemicals Manufacturing[ j Paint and Ink Formulating,[ ] Paving and Roofing Manufacturing[ j Pesticides Manufacturing[ j Petroleum Refining[ ] Pharmaceutical[ j Plastic and Synthetic Materials Manufacturing[ j Plastics Processing Manufacturingf j Porcelain Enamel[ j Pulp, Paper, and Fiberboard ManufacturingE ] Rubber[ j Soap and Detergent ManufacturingI XJ Steam Electric[ j Sugar ProcessingC ) Textile Mills[ ] Timber Products

A facility with processes inclusive in these business areas may be coveredby Environmental Protection Agency's (EPA) categorical pretreatmentstandards. These facilities are termed "categorical users".1 ?*

2. Give a brief description of all operations at this facility includingprimary products or services (attach additional sheets if necessary):rprktown Power Station is a sj:eam electric generg|"t n jgfai-if-m wi t-V> anexistin wast-evat:eji'ic'1iTgp fn <~hA HHSDCreek WaHtewateT' Syafcem la an afHnnrft! f JSPI li 1-y nf Ynrlcf-fpim p.nup.r fi^at-i nnand conslfltrs of a. hrtri^ontl r*a n gfif-gm iiniigT' lyin

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3. Indicate applicable Standard Industrial Classification (SIC) for allprocesses (If more than one applies, list in descending order of impact onwastewater generation)s

a. 491Ib. ______c. ______d. -.____-_

4. PRODUCT VOLUME: in megawatt hours/day (MWH/day)

PAST CALENDAR YEAR ESTIMATE THIS CALENDAR YEARPRODUCT Amounts Per Day Amounts Per Day

(Irandname) (Daily Units) (Daily Units)__________ Average Maximum Average Maximum

Electricity (net) 6657 23.142 6790 .... 23.371 -

SECTIOK C - WaXEK SU2K.Y

1. Water Sources* (Check as many as are applicable)

E X 3 Private Well (Chisman Creek horizontal drain system)[x ] Surface Water[X 3 Municipal Water Utility (Specify City): Newport-[ 3 Other (Specify): _______________:_______;

Meter Informations

Types of MeterszSee Attachment

3.

4.

5.

-,-

Name on the water bills See Attachment

Name iStreetsCity* „. „, ,, States

Water senricet account number (s)s .See. _Attachment

List average water usage on premises!

Zip* ., .,-_,-

(Provide estimates where necessary)See Attachment

AR000005

IndicateAverage Water Estimated (E) orUsage (CPD) Measured (M)

a* Contact cooling water ____ 0

b. Non-contact cooling water 878,7337000* Mc. Boiler feed - - _ " 54,000 . ____£_

d. Process 38,026,000 E

e. Sanitary _____ 2,000 M _____

f. Air pollution control 186 , OOP ____ E _____

g. Contained in product Q ____ f ____ - _____

. h. Plant and equipment washdown 147,000 ____ E _____

i. Irrigation and lawn watering N/A ___ ____ -

j. Other' 855.000 E _____

k. TOTAL OF A-J 918.000,000 E ______

SECTIO* O - SEWBX XHFOltMATXOX

1. a. Tor an existing busineasi

is the building presently connected to the public sanitary sewersystem?[X J ress Sanitary sewer account number snnn-nnnms-n ________{ j No: Have you applied for a sanitary sewer hookup?

t XJ *«* { ] Nob. For a new business*

(i). Will you be occupying an existing vacant building (suchas in an industrial park)? [ } Yes t J No

(ii). -Rave you applied for a building permit if a new facilitywill b* constructed? { ] Yes { J No

( iii) . Will you be connected to the public sanitary sewer•yatem? { ] Yes t 2 No

2. List size, descriptive location, and flow of each facility sewer whichconnects to the City's sewer . system. (If more than three, attachadditional information on another sheet).

Descriptive Location of Sewer AverageSewer Sire Connection or Discharge Point Flow fGPDl,•« /« -r« F?9m kift Station $3, approx.in. /a ln» 11 fin ft-. r.f <;" T 0 ~~-~tt ,**-**£

to approx^_354Q_ft> nf 3" ling

i

SECTION X - WASTEWATER DISCHARGE INFORMATION

1. Does (or will) this facility discharge any wastewater_ other than fromrestrooms to the City sewer?

[X] Xes If the answer to this question is "yes", complete theremainder of the application.

[ ] No If the answer to this question is "no", skip to Section I.

2. Provide the following information on wastewater flow rate.[New facilities may estimate]

a. Hours/Day Discharged' (e.g., 3 hours/day):

« -24 T 24 W .24 TH 24 F 24 Sat 24 Sun 24

b. Hours of Discharge (e.g., 9 a.m. to 5 p.m.)t

K ___ T ___ W ___ TH ___ F ___ Sat ___ Sun ___

c. Peak hourly flow rate (GPD) ______9,300 .

d. Kaxijnum daily flow rate (GPD) - _____232,000

e. Annual daily average (GPD) _____27,400

f. Describe any seasonal or unusual discharge variations. •____See below ___ ______________________

3. If batch discharge occurs or will occur, indicate:[Hew facilities may estimate] See Below

a. Number of batch discharges ____N/A______ p«r day.

b. Average discharge per batch N/A_____ (GPD) Batch

c. Time of batch discharges N/A_______ at N/A(days of week) (hours of day)

<3. Flow rat« N/A_______ gallons/minute

e. Percent of total discharge

SECTION 2. f. Seasonal variations do not occur. Flow to the sanitarysystem, may increase during major generating unitmaintenance outages and annual cleaning of the ChismanCreek Wastewater System (to.36,000 GPD).

SECTION 3. Batch discharges occur for certain NPDES systems.Existing and proposed discharges to the sanitary sewersystem are not operated as batch discharges.

ARQ00007

\i

Schematic Flow Diagram - For each major activity in which wastewater i» orwill be generated, draw a diagram of the flow of ma t er i a Is j_ p r odust •,water, and waatewater from the start of the activity to its completion,showing all unit processes. Indicate which processes use water and whichgenerate wastestreams. Include the average daily volume and maximum dailyvolume of each wastestream (new facilities may estimate). If «»tlmat««are used for flow data this muat be indicated. Humtaer each unit proceaahaving wastewater discharges to the community sewer. Use these numberswhen showing this unit processes in the building layout in Section H.

See attached schematic labeled "NPDES PEBMIT FLOW DIAGRAM". Flowvalues- shown on schematic represent average daily flow. ChismanCreek Wastewater System not shown on schematic. See attachedDrawing Number 92-154-El. for actual drawing of existing andproposed Chisman Creek Wastewater System. Schematics and descriptionof each major power station system is provided in the attached"Environmental Protection Manual, Volume 2, Yorktown Power Station,Section 1.0-9".0". . . . .

;-GI*AL

Facilities that checked activities in question 1 of Section 3 are consideredCategorical Industrial Users and should skip to question 6.

5. For Non-Categorical Users Only: List average wastewater discharge,maximum discharge, and type of discharge (batch, continuous, or both), foreach plant process. Include the reference number from the processschematic that corresponds to each process. [New facilities shouldprovide'; estimates for each discharge].

Average Maximum Type of DischargeNo. Process Description Flow fGPDy Flow fGPD) (batch, continuous, none)

N/A Sanitary Plow_____ 2,400 187,000 Continuous (leVel actuated'Chisman Cr&gk Wastewater 25.000 36.QOQ 'Continuous

K'/A NPT1KS Djsrharggg QIB.OOO.OOn N/A

ANSWER QUESTIONS 6 ft 7 ONLY IF YOU ARE SUBJECT TO CATEGORICAL PRETREATMENTSTANDARDS

6. For Categorical Users: Provide the wastewater discharge flows for each ofyour processes or proposed processes. Include the reference number fromthe process schematic that corresponds to each process. [New facilitiesshould provide estimates for each discharge}.

Average Maximum Type of DischargeNo, Process Description Flow fGPD) Flow fGPDl fbatch, .'continuous, none)

Average Maximum Type of DischargeNo. Process Description Flow fGPD) Flow fGPD) (batch, continuous, none).

Average Maximum Type of DischargeNo. Process Description Flow fGPD) Flow fGPP> fbatch, continuous, none)

AR000009

N/A 7, For Categorical Users Subject to Total Toxic Organic (TTO) Requirements:

Provide the following (TTO) information.

a. Does <or will) this facility use any of the toxic organics thatare listed under the TTO standard of the applicable categoricalpretreatment standards published by EPA?

' [ 1 Yesf J NO

b. Has a baseline monitoring report <BMR) been submitted which containsTTO 'information?

C 1 *•»£ 1 Ho

c. Has a toxic organics management plan (TOMP) been developed?

C 1 *•«t ] No

8* Do you have, or plan to have, automatic sampling equipment or continuouswastewater flow metering equipment at this facility?

Current* Flow Metering [ x] Yes [ ] No [ ] N/ASampling Equipment {X} Yes [ j No [ j !VA

Planned: Flow Metering { x 3 ?*• £ J Ho [ ] NyfcSampling Equipment { K } Yes { ] No | ] tyA

If BO, please indicate the present or future location of this equipment onthe sewer schematic and describe the equipment be low i

Power Station's No. 3 Lift Station - Flow is determined with pump timersand pump data. A sample Sap is installed. See Section 2.0 of attachedEnvironmental Projection Manual, ________________________________Chisman Cteek Wastswater System - Flow will be metered with an ultrasonic

ng wi.1'1 fa^ perfoymgd at ^ 6— inch Palmer— BowlersSee attached dratjin Wnmbar Q2-TS4-E1Yarktown Power Station has a fully equipped NPBES Laboratory.

9. Are any process changes or expansions planned during the next three yearsthat could alter wastewater volumes or characteristics? considerproduction processes as well as air or water pollution treatment processesthat may affect the discharge.

I . J * • • . - ' .£ X] Ho, (skip question 10)

10. Briefly describe these changes and their effects on the wastewater volumeand characteristics* (Attach additional sheets if needed.)W/A_ ____ _______:_____________________

11. Are any materials or water reclamation system* in use or planned?

[ ] Yes£ XI Ho, {skip question 12)

12. Briefly describe recovery process, substance recovered, percent recovered,and the concentration in th* spent solution. Submit a flow diagram foreach processi (Attach additional sheets if needed.)N/A___________________ _____________' _____

A R O O O O I 1

SECTION F - CHARACTERISTICS OF DISCHARGE

All current industrial users are required to submit monitoring data on allpollutants that are regulated specific to each process. Use the tables providedin this section to report the analytical results. DO NOT LEAVE BLANKS. For ailother (nonregulated) pollutants, indicate whether the pollutant is known to b«present (P), suspected to be present (S), or known not to be prevent (O), byplacing the ..appropriate letter in the column for average reported values.Indicate on cither the top of each table, or on a separate sheet, if necessary,the sample location and type of analysis used. Be sure methods conform to 40 CFRFart 136; if they do not, indicate what method was used.

Kew dischargers should use the table to indicate what pollutants will be presentor are suspected to be present in proposed wastestreatns by placing a P (expectedto be present), S (may be present), or O (will not be present) under the averagereported values.

NOTE: Analytical data on the following table was obtained from the ChismanCreek Wastewater System. Analyses have not been' performed on thePower Station sanitary flow. All analyses conform to 40 CFR Part 136 "methods.

Mass values based upon flow of 13.2 gpm.

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AROOOOI7

SECTIOH & - TREATMENT

1. X» any form of wastewater treatment (•*« li«t b«low) practiced at thisfacility?

£ X| Ye« See attached~Environmental Protection Manual, Section 1,0-9.0t J N o . . - . - - - . - . ..:. - " - - -

2. In any form of wastewatar treatment (or change* to a existing wastewatertreatment) planned for thi« facility within the next three years?

{X J YeS, describe* Propose to route Chisman rr*efc vast-avatar -mCn[ ] No ' system.

3. Treatment device or processes used or proposed for treatment wastewater orsludge (check as many a* appropriate),

[ ] Air flotation[ J Carbon AdsorptionI j Chemical precipitation{ J Chlorination[ j Comminutor[ j Cyclone{ ] Filtration, typet _____;________________________________•[ J Flow equalizationt ] Grease or oil separation, type*[ ] Grease trapf ] Grinding filter[ ] Grit removal( j Ion exchangeC j Neutralization, pH correction( j Ozonation[ } Reverse OsmosisI ] Screen[ j Sedimentationt } Septic tankt j Solvent separationI ] Spill protectionEX'3 Svunp

} Biological treatment, type:{ ] Rainwater diversion or storage[ j Other chemical treatment, type c.[ } other physical treatment, types .[ j Other, typ»t ______________

4* _ Description

Describe the pollutant loading*, flow rate*/ design capacity, physicalsize, and operating procedure* of each treatment facility checked above*

5. Attach a process flow diagram for each existing treatment system. Includeproc*** equipment, by-product*, by-product di*po*al method, waste and by-product volume*, and design and operating condition*.

See attached Environmental Protection Manual, Section 2.0

6, Describe any changes in treatment or disposal methods planned or underconstruction for the wastewater discharge to the sanitary sewer. Plaaseinclude estimated completion dates.Virginia Power is plarining tg^install 280 gpm horizontal sewage pumps at

7.

LJLEt Station No. 3 and replace the b Inch sewage line with an a inchline. Completion date Is dependent upon regulatory approvals.

Do you "have

(if yes,)

a treatment operator?Same: Scott MorelanTitle: Chemist

Phones 898-2571

Full tijnei 7:30 a.m.. -3:

Part timex

Licensed: E x 3 ?•» '

[ X ] Yes [ ] No

. _ .

30 p.m. „_ (specify hours)

..,..„ (Specify hours)astewater Works Operator,,ass TfiT * r 1 No

3. Do you have a manual on the correct operation of your treatment equipment?

[ x 1 Ye* t ] No9. Do you have a written maintenance schedule for your treatment equipment?

E X ] Ye* [ ] No

SECTIOH S - FACILITY OPERATIONAL CHARACTERISTIC!

1. Shift Information

Work Day* [ x J £ X 1 tX] EXl Ex] CXl [X]Mon. Tues. Wed. Thur. Fri. Sat. Sun.

Shift*per work ___3_ ___3_ 3 3 ..3.. . 3 ... ..3

1st 186 195 195 .195. 186_ , ..54 :.34Empl*sper 2nd 29 * 29 29 29 29__ 21 21shifts

3rd 12 12 12 12 12. . 12 12

Shift l*t 7/3 7/3 7/3 7/3 7/3 7/3 7/3startand 2nd 3/11 3/11 3/11 . 3/11 3/11 3/U_ 3/11endtimes: 3rd 11/7 11/7 11/7 11/7 11/7 11/7 . 11/7

2. Indicate whether the business activity is:

E X] Continuous through the year, ort ] Seasonal - Circle the months of the year during which the business

activity occurs:J F M A M J J . A S O N D

Comments i _____________________________—————————————————

17

AROOOOI9

3. Indicate whether the facility discharge is:[ X] Continuous through the year, orI j Seasonal - Circle the months of the year during which the business

activity occurs:

J F M A _ H J J A S O N D

Comments i ________________________________________________

4. Does operation shut down for vacation, maintenance, or other reasons?

( J Yes, indicate reasons and period when shutdown occurs:

__- _

5. List types and amounts {mass or volume per day) ofplanned for use (attach list if needed):Coal -.459,850 Eauiv. Tons

raw materials used or

No. 6 Oil - 1.873.802 BarrelsRefine-rv Gas — 2/ S Kqtiiv. TV»n«Katm-sl das — IS: 97 Kqn-f'v- Tr>n«T.ifht- Oil - 1A.T71 Rai-rplQ

6. List types and quantity of chemical* used or planned for use (attach listif needed) which may be discharged to the sanitary sewer system. Copiesof Manufacturer's Safety Data Sheets for all chemicals must be availableto the District.

Chemical QuantitySee_attached list.

7. Building Layout - Draw to scale the location of each building on thepremise*. Show map orientation and location of all water meters, stormdrains, numbered unit processes (from schematic flow diagram), publicsewers, and each facility discharge line including floor drains connectedto the public sewers. Number each sewer and show existing and proposedsampling locations*

A blueprint or drawing of the facilities showing the above items may beattached in lieu of submitting a drawing on this sheet, however, markingsas required above must be shown*

See-attached drawings numbers 5458 0 206717-004 entitled "Site DrainageStudy". _&ap orientation and storm drains are shown for the power station,Water .meter locations are not available, ___Unit Process 1 shown on schematicflow diagram is described in' the attached "Environmental Protection Manual,Volume 2, Yorktown Power Station, Section 2.0." __The attached site planidentifies the Administration Facility which is the source of sanitarysewage flows at the power station. No sampling locations currently existat Lift Station No. 3. Sampling it location and other requested information

• is shown on Drawing No. 92-154-E1 for the Chisman Creek site (Unit Process 2}

SECTION I - SPILL PREVENTION

1. Do you have chemical storage containers, bins, or ponds at your facility?[ X] T« t , No Se§ ftttched SPCC lan. hemic sjor g centals bias,

If y... pi.... giv. . .f.fei on rtfiii LgSg IHIrttSSl.f SlR p.,and frequency and method of cleaning. Also indicate in a diagram orcomment on the proximity of these containers to a sewer or storm drain.Indicate if buried metal containers have cathodic protection.

2. Do you have floor drains in your manufacturing or chemical storagearea(s)? [X ] Yes I ] No If yes, where do they discharge to? NPDES System(Drains are shown on 27 separate drawings. Drawings can be provided .upon request.

3. If you have_chemical storage containers, bins, or ponds in manufacturingarea, could an accidental spill lead to a discharge to: (check all thatapply).

E X] an onsite disposal system (NPDES)( ] public sanitary sewer system (e.g. through a floor drain)[ ] storm drain[ X] to ground _ :E X] other, specify: tank containments[ ] not applicable, no possible discharge to any of the above routes

4. Do you have an accidental spill prevention plan (ASP?) to prevent spillsof chemicals or slug discharges from entering the Control Authority'scollection systems?

E X] Yes - [Please enclose a copy with the application) spec Plant ] No[ ] N/A, Not applicable since there are no floor drains and/or the

facility discharge(s) only domestic wastes.

i. Please describe below any previous spill events and remedial measurestaken to prevent their reoccurrence.

See attached SPCC Plan._________ __ __

SECTIOX J * HOX-DXSCSAXaXd H&ftZM

1.

[ X ] Yes, please describe belowE ] Ho, skip the remainder of Section J.

Waste Generated Quantity foer vearl Disposal Method

Ash ___________ 62,268 tons (1992 est.lHazardous. Wastes 1.10Q Ibs (19911Trmt* Plant Sludge A. 400 Ibs C19911NfDES Wastewater N/A ____________ _ On-site treatment facilitiesParts Washing Solvent 500 Ibs (1991) , Off-site recycler

2. Indicate which wastes identified above are disposed of at an off -sitetreatment facility and which are disposed of on-site.

3. If any of your wastes are sent to an off-site centralized waste treatmentfacility, identify the waste and the facility.Hazardous wastes & treatment plant sludges are sent -to Laidlaw EnvironmentalInc.'s Reidville, NC facility for disposal. Parts Washing Solvents areto Safety-Kleen's Chesapeake , VA1* facility for recycling.

flR00002l

4. If an outside firm removed any of the above checked wastes, state thename(s) and address{es) of all waste haulers:

M1 RnvtPQnm&nt:al 'Svpc.. Inc. b. SaFAfv-yigon Tn>Chesaeake. VA.

(Haz. waste & trmt. plant sludged . . (Parts wash-in

Permit No. gp^ ID NO. Permit No. go* rn Nn(if applicable); NCPOnnfi4fl4^1 (if applicable)tVsfi;00o737346

5. Have you been issued any Federal, State, or local environmental permits?

£ X]{ ] No

If yes, please list the permit(s)j SPDES Permitgr P<.rmi>- ___________ Ynr-V County Conditional Use Permit R82-22I (R2)

Stationary Sonrcg Permit #60137 Solid Waste Management Permit #457 ~

_ (Boiler Cleaning Waste Disposal)SECTIOJf K - AUTHORIICD 8IOHATUR2S 6 F ;

Compliance certification!

1. Are all applicable Federal, State, or local pretreatment standards andreguirements being met on a consistent basis?

T.BS E X3 No t ] No yet discharging [ ] ti "

2. If Not

a. What additional operations and maintenance procedures are beingconsidered to bring the facility into compliance? Also, listadditional treatment technology or practice being considered inorder to bring the facility into compliance*

b. Provide a schedule for bringing the facility into compliance.Specify major events planned along with reasonable completion dates.Note that if the. Control Authority issues a permit to the applicant,it may establish a schedule for compliance different from the onesubmitted by the facility.

f*

____ Milestone Activity ____ . _____ Completion Date ______

20

CERTIFICATION REQUIREMENT

To be signed by authorized industry representative and submitted with selfmonitoring data.

I certify under penalty of law that I have personally examined and am familiarwith the information submitted in this document and all attachments and thatbased on my inquiry of those individuals immediately responsible for obtainingthe information I believe the submitted information is true, accurate andcomplete. I an aware that there are significant penalties for submitting falseinformation, including the possibility of fine and imprisonment, see 180.3.C. £1001 and 33 U.S.C. C 1319 (Penalties under these statues may include fines to$10,000 and/or maximum imprisonment of between six (6) months and five (5) years.

B. M. Marshall ._- - Manager, Water QualityName(s) Title

signature y Date Phone

21

flR000023

Section A.4.

Written authorization dated June 14, 1988 to sign DischargeMonitoring Reports has been issued by Virginia Power management tothe following positions at Yorktown Power Station:

Station ManagerSuperintendent of OperationsSuperintendent of Technical ServicesEnvironmental Compliance Coordinator

As of July 8, 1992, these respective positions were held byfollowing employees:

L. K. Newsome 898-2532D. W, Faison 898-2533P. W. Deal 898-2534W. D. Rainey, Jr. 898-2555

he address for all of the above individuals is Yorktown PowerStation, State Route 631, P. O. Box 371, Yorktown, Virginia 23690.

ARQQQ02J*

Section, C. 2, 3, 4, & 5

Meter Meter Account Average WaterSize Number Number . Usage

8 inch KR1190930 60384426704 9,994 HCF 12 inch N30015815 62981126501 : 196 HCF 18 inch KR1190993 60384426602 12,255 HCF 16 inch RR1155568 60381120903 64 HCF 11 inch N32446607 64878881906 . - 27 HCF 25/8 inch 999999999 60181121108 0 HCF 1

1. Name on the water bill: Virginia Electric and Power CompanyStation AccountingP. O. Box 571Yorktown, VA 23690

2. Name on the water bill: Virginia Electric and Power CompanyAttn: Project AccountantP. 0. Box 1155Grafton, VA 23692

Note: Average water usage is based upon 12 month customer historyprovided by Newport News Waterworks.

AR000025

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flR000027

SPOC PUB

Page i

YORKTOHN POWER STATION

SPILL PREVENTION CONTROL AND CQUNTERMEASURE FLftN

This SPCC Plan as amended will be inplemented as herein described:

Signature: / SxAtfr t- - Title: Station Manager

Certification

I hereby certify that I have examined the facility, and being familiar withthe provisions of 40 CFR, Part 112, attest that tha SPCC Plan as amercedhas been prepared in accordance with good engineering practice*.

/} I /: //C/j*h*t LA' h ^ ^ -~Signature: //Cj**t LA'h^^^^- Date: 3.J J/ ~

Registration No:

12/20/89 " " Environmental Centre •.flR000029

SPCC PUH

Page ill

OF CONTENTS

I. INTRODUCTION

II. PREVIOUS SPILL EVENTS

III. POTENTIAL FOR FUTURE SPILL EVENTS

IV. CONTAINMENT AND DIVERSIONARY STRUCTURES OR EQUIPHENT

V. SPILL CONTINGENCY PLAN':/:.*tf -_. .. - .: . .. .

VI. SPILL PREVENTION PROCEDURES

APPENDIX A - CONTAINMENT OF OIL ON WATER

APPENDIX B - MOVEMENT, CONTAINMENT, AND CLEANUP OF OIL ON LAND

APPENDIX C - EPA REGULATIONS FOR OIL POLLUTION PREVENTION

12/20/89 £flvtfonmente< Conrr;AROQQQ30

SPCC PLAN

Page l-l

YORKTOWN POWER STATIONVIRGINIA POWER

SPILL PREVENTION 55NTROL AND COUNTERHEASURE PLAN

I. INTRODUCTION

A. Regulatory Authority Plan

This amended SPCC Plan for a non-transportation relatedonshore facility has been prepared a required by the U.S.Environmental Protection Agency (EPA) regulations publishedin'the Federal Register, CFR Title 40, Chapter 1, Sub-chapterD, Part 112.7 to prevent the discharge of oil from thefacility into or upon the navigable waters of the UnitedStates or adjoining shorelines.

B. Amendment _ . _ . . . .

This SPCC Plan shall be amended in accordance with thiFederal Register, CFR Title 40. Chapter 1, Sub-Chapter 0?Part 112.7 whenever there is a change in facility design,construction, operation, or maintenance which materiallyaffects this facility's potential for the discharge of oilinto or~upon the navigable water of the United States oradjoining shore 1ines. These amendments will be fu11yimplemented as soon as possible, but not later than sixmonths after such changes occur.This SPCC Plan will also be reviewed at least once every-three years from the date this Plan is issued. The reviewwi11 ba coordinated by the Water Quali ty Department'sEnvironmental Services Section. Environmental TechnicalServices should be notified whenever a change in stationequipment or systems is made which may affect this SPCC plan.If necessary, this SPCC plan will be amended within sixmonths after a review is completed.

All amendments to this SPCC plan will be certified by alicensed Professional Engineer.

C. Summary Description of Oil Storage and Handling Facilities

The facilities described in this plan are located at theYorktown Power Station in York County, Virginia. Theconsists of three electric power generating units and begoperation (Unit 1) on July 25, 1957. Units 1 and 2 primarily

12/20/89 . Environmental ContraAR00003I

•• JJ'ULSPCC PUW ,>J)

Page 1-2

burn coal and Unit 3 burns Number 6 (heavy) oil occasionallysupplemented with natural gas. The station has storagefacilities for Number 2 fuel oil, Number 6 fuel oil,lubricating oil, diesel fuel, kerosene, and gasoline. Thegeneral site layout _ is shown in Figure 1-1, Storagecapacities are summarized

Stationary Oil Storage Storage Capacity..._... .._._._. — .- 11,130,000 gal.

1. Number 6 Fuel Oil Tank (265,000 bbls.)

2. Number 2 Fuel OilBulk Tank 462,000 gal.Package Boiler Tank 15,000 gal.

3. Turbine Lubricating OilUnits U2 (2 tanks @ 5,280 gal. ea.) .. 10,560 gal.Unit 3 Tank {2 tanks £ 20,000 ea.) 40,000 gal.

4. Diesel FuelCoal Yard (underground) 2,500 gal.Vehicle Fuel Station (underground) 4,000 gal.Unit 3 Fire Pump House , 575 gal.

5. Kerosene (2 underground 4,000 gal.tanks @ 2,000 gal. ea.)

6. GasolineVehicle Fuel Station (2 underground 6,000 gal.tanks: 2,000 gal. and 4,000 gal.)

7. " Waste Oil (underground tank $ 4,000 gal.vehicle maint. bldg. )

8. 011 Recovery Tank ? Oily Waste Retention pond 10,365 gal.

TOTAL 11,689,000 gal.

(NOTE: 1 barrel - 42 U.S. gallons)

0. Definition of Spill Event

A Spill Event is any discharge of oil onto navigable waterswhich: 1) violates applicable water quality standards or, 2)causes a film or sheen upon or discoloration of the surfaceof the water or adjoining shore lines or causes a sludge oremulsion to be deposited beneath the surface of the water orupon adjoining shore lines.

Sfivteonmentai Control

fiR000032

SPCC PUW

Page 1-3

£. Summary of Plan Contents

A study of the facility's fuel and lubrication oil systemshas been made to determine the areas where potential oilspills could develop along with the means for preventing andcontaining these spills utilizing sound engineering methods.

Thi s SPCC PI an sped f1es the procedures, materi als,equipment, and/or structures that will be employed toprevent, contain, and/or clean up, 1f necessary, anyaccidental discharge of petroleum products from any source atthe facility, with the objective'of preventing spill events.The procedures will be adhered to fay all personnel involvedin petroleum product storage, handling, or consumption onsite including all contractors.

The spill prevention program has been reviewed by stationpersonnel to assure adequate understanding of the areas ofresponsibility and the action to be taken should a spilloccur. Briefings will be scheduled to keep personnel advisedof any changes and/or retraining that would affect the SPCCPlan.

12/20/89 environmental ConrroiAR000033

SPCC PUN

UNIT 3.?IHE PUMP //.HQSSS Ud« f

M 'ri'"-5 ""J^r-•'"\

FIGURE I-IYORKTOWN POWER STATION

OIL STORAGE & HANDLING FACILITIES

Snvtronmefxai ControlAR00003U

mxmt GMMatm* t immi

SPCC PUN

Page 2-1

II. PREVIOUS SPILL EVENTSNo reportable oil spills occurred at Yorktown Power Station from1982 through 1989.

Environment** ControlAR000035

SPCC PUN

Page 3-1

III. ' POTENTIAL FOR FUTURE SPILL EVENTS

There are three (3) generating units at Yorktown Power Station,which began commercial operation on July 25, 1957, with Unit 1.Heavy Oil is the primary fuel for Unit 3. Units 1 and 2 have beenconverted to burn coal as their primary fuel. Light Oil is usedfor start-up and flame stabilization.A. ' Stationary Sulk 011 Storage Facilities

1. Heavy Oil

Heavy Oil is transferred from the Amoco 011 CompanyYorktown Refinery, adjacent to the eastern propertyline, to the Heavy Oil Storage Tank located on stationproperty southeast of the main plant structure.Transfer operations occur approximately onse per week toreplenish the oil supply consumed during the periodswhen Unit 3 Is operational.Adjacent to the northwest side of the Storage Tank is anopen structure called the Heavy 011 Transfer Pump Housecontaining pumps which deliver the viscous oil to theUnit 3 Heavy Oil Burner Pump House.

The Unit 3 Heavy Oil Burner Pump House 1s located northof the plant structure containing Unit 3. Oil leaving

^the Burner Pump House is delivered to the furnace whereit is either burned or reclrculated (See Figure III-l).

2. Light Oil

Light Oil, used primarily in starting up the threeunits, is delivered by tank truck and is stored in the

=" Light Oil Storage Tank located north of and within thesame diked storage area as the Heavy Oil Storage Tank.Adjacent to the northwest comer of the diked storagearea is an open structure containing the Light OilTransfer Pumps. Here light oil is pressurized foreither burning In the furnaces or recirculation (SeeFigure 111-2}.

A package boiler 1s located on the ground floor of theplant building, between Units 2 and 3. Light oil forthe package boiler is stored in a steel tank locatedbetween the plant building and the switchyard. The tankis surrounded by a concrete curb.

Environmental ContraflRQQQQ36

SPCC PUN

Page 3-2

3. Fuel Oil Additive

Fuel 011 Additive, used to improve boiler efficiency andcleanliness, is stored in the Unit 3 Fuel Oil AdditiveStorage Tank located north of the Unit 3 stack. Theadditive is delivered by tank trucks. Immediatelyadjacent to the Fuel Oil Additive Storage Tank arelocated metering pumps, which deliver the additive tothe Unit 3 Heavy Oil lines (See Figure III-3).

4. Turbine Lubricating Oil

Turbine Lubricating Oil is stored in two tanks south ofthe main plant structure and in two tanks located in thelubrication oil storage room inside the plant. Drainsfrom these facilities are routed to 11ft stations whichpump to the oily waste retention pond. The areas withinthe plant that house the filters and centrifuges arealso drained to the oily waste retention pond via liftstations. (See Figure III-4 for Units 1 and 2 lube oilflow and Figure HI-5 for Unit 3 lube oil flow).

5. Diesel FuelTwo underground tanks are used to store diesel fuel: (1)a fiberglass tank with a capacity of 2,500 gallons islocated south of the rail car shaker building in the"•coal yard; and (2) a steel tank having a capacity of4,000 is located at the vehicle fuel station east of thestoreroom.

Diesel fuel is also stored in a 575 gallon tank for thediesel fire pump. Both the tank and the pump arelocated in the Unit 3 fire pump house.

KeroseneKerosene used for space heaters around the station isstored in two 2,000 gallon underground fiberglass tankslocated south of Unit 1.

GasolineTwo underground steel tanks are located at the vehiclefuel station east of the storeroom. One tank hascapacity of 2,000 gallons, the other has a capacity4,000 gallons. Both tanks contain unleaded gasoline.

Environmental Control

AR000037

SPCC PUN

Page 3-3

8. Construction Tanks

Hajor construction projects at the power station may..., _ ._. require the use of temporary oil storage tanks. All

such tanks should be located so that leaks or spillswill not enter any station discharge. Tanks having acapacity greater than 55 gallons should be surrounded byan oil containment dike capable of holding 110J of thecontents of the largest tank within the dike.

9. Waste 011

An underground fiberglass tank with a capacity of 4,QOOgallons is located north of the vehicle maintenancebuilding. The tank is used to temporarily store wasteoil from equipment maintenance.

10. Drum 011

The drum storage room 1n the warehouse is used to storelubricating oil and degreasers in varying amounts.

II. Summary of Oil Usage

011 usage at the station varies from season to seasondepending on the load demand for power generation. Thefollowing is based on current operating practice and is

..not to be used as a forecast.

AverageType Oil Use

Heavy (No. 6 011) 243,000 gal./day-Light (No. 2 011} 2,025 gal./dayTurbine Lubricating 011 19,000 gal./year

B. Transfer facilities

1. Truck Unloading FacilitiesNumber 2 fuel oil is delivered to the station by tan*truck. The tank track unloading facilities are locatedat the light oil pump station which 1s just outside t*elight oil tank dike.

12/20/89 - Enwonmentat Centre-8

SPCC PUN

Page 3-4

2. Oil Transfer Pumps

Adjacent to the northwest side of the Heavy Oil StorageTank is the Heavy Oil Transfer Pump House containingpumps that deliver the heavy oil to the Unit 3 BurnerPump House.

The Heavy 011 Burner Pump House serving Unit 3 islocated south of the Unit 3 stack. Figure III-l is aschematic of the heavy oil system.

The Light Oil Transfer Pumps are located adjacent to the" northwest corner of the storage tank area. The pumpssupply oil to Units 1, 2, and 3 for ignition and flamestabilization.

C. Electrical Equipment -- \ •

There are pad-mounted and pole-mounted transformers , oi 1filled bushings, and voltage regulators located throughouthe power station. Discharges from this equipment are rareAny discharge would result 1n electrical failure which wouldbring immediate attention to the problem.

D. Mechanical Equipment

Various mechanical equipment and machinery such as pumps,pulverizers, etc., are located throughout the power stationand may contain small amounts of oil. Any oil spilled fromthese sources should be noticed by station personnel.

E. Treatment Facilities

1. Oily Waste Retention Pond

Various areas in the station generate potentially oilywastes which are directed to the oily waste retentionpond for separation and recovery. These areas are theturbine-generator and boiler areas for each unit, theburner putnphouse, the switchgear house floor drains, theheater/ reboiler house floor drains, the diked heavy andlight oil storage tank areas, the heavy and light oiltransfer pump stations, and the oil storage area foamhouse.The oily waste retention pond is located on the ?side of the station between the discharge canal and :he

Environmental Con/re, v ,-

flROOOQ39

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fuel oil storage tank diked area. The pond is arectangular concrete structure with sloping sides and aflat bottom graded towards the west end of the pond.The pond is 148 ft, x 81 ft. with the depth varying from10 ft. 6 in. to 11 feet. Total volume of the pond is619,842 gal1ons, but effecti ve operati ng volume i s219,922 gallons.

Oil Recovery System

Oil is recovered from the oily waste retention pond byusing a pneumatic pump and 3-1nch hose. With the mouthof the hose positioned at the surface of the pond, wasteoil is skimmed off by the pumps and delivered to the oilrecovery tank while floating debris 1s retained on thescreen surrounding the end of the hose,

iThe oil recovery tank located near the northeast cornerof the oily waste retention pond 1s a 10,365 .gallon tanksurrounded by an earthen dike. A 4-1nch drain line fromthe diked area is routed back into the oily wasteretention pond. Recovered oil is delivered to the heavyoil tank for reuse 1n the Unit 3 boiler by a Slackmermodel HLX-4 rotary sliding vane positive displacementpump mounted on a concrete pad Inside the diked areaadjacent to the tank. The pump is rated at 230 gpm andis driven by a 15 h.p. motor rated at 1150 rpm, 3 phase,,60 hz» and 460 volts. The pump assemble is equippedwith a Liquids Control M-2S, 15 to 25 gpm, flowmeter forregistering the quantity of oil pumped into the oilrecovery tank during a given time period.

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AMOCO PIPE LINE

RECIRCULATEP OIT.

HEA/Y OILSTORAGETANK

r ——— ——™ STRAINER

|o|

-

t1111 __

i

STRAINER

f . X I N o 3 UNIT~A_^ BURNER PUMPS

ER!

No 3 UNITHO. TRANSFER PUMPS

FIGURE III-lYORKTOWN POWER STATIONHEAVY OIL FLOW - UNIT 3

Environmental Control

MOUTH*

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FBQK TANK TSUCK

STflAiNER

Page 3-7

,UGH!STOPTA

' OIL(AGESK

-.

STRAINER

1

i

/ LiGHTQILBURNER PUMPS

4

*

No 3 IGNITION OIL SUPP'JfLIGHT OIL BURNER

>N01 IGNITION OILUGHT OIL BURNER

-N02H5NI7ION OIL SUPPtY•UGHT Oft BURNER SUPPL

FIGURE III-2YORKTOWN POWER STATION

LIGHT OIL FLOW - UNITS 1, 2, & 3

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UNIT NO. 3

NQ3 FUE L OILADDITIVETANK Na3 ADDITIVE

METERING PUMPS

H O. LSNE TON0.3 FURNACES

FROM TANK TRUCK

FIGURE HI-3YORKTOWN POWER STATIONFUEL OIL ADDITIVE FLOW

Envwwmenra* ConrrofAROOOOW

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TURBINE OfLCONDITIONER

OfL CONDITIONERPUMP A.

ATMOSPHERICVENT,

LOOP VENT.

US2D

LOBS OILTASK

OHITS 1 S 2

NEWTORBISELOBS OIL-TASK

UNITS i S 2

VAPOR EXTRACTOR

TUR8INE LUSEOIL TANK

UH1T I OS 2OIL CONOlTiONESPUMP S.

TO OR FTOMOHIT 3 LOTS OH.

FIGURE HI-4YORKTOWN POWER STATICS

TURBINE LOSE OIL FLOW - UNITS 1 & 2

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UNIT 3USEDTURBINELUBE OILTANK

SHAFTDRIVENBOLER

FEED PUMP

LUBE OIL TRANSFERPUMP

CENTRIFUGES T URSINE LUBEOIL

RESERVOIR^

^ ____________._... ___ ^ ^ ^ ^ ^ ^ ^ TURBINEUNITS 1 fi 2J r . Z"Jimm*»van on. svsrm GENERATOR

FIGURE III-SYORKTOWN POWER STATION

TURBINE LUBE OIL FLOW - UNIT 3

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MONTH C*«OCHM UH'BH

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IV. "CONTAINMENT AND Of VERS I ONARY STRUCTURES OR EQUIPMENT

A. Dikes, Serms, Retaining Walls, and Curbing

1. Stationary Bulk Oil Storage Tanks

The following areas have retaining walls, dikes, orcurbing capable of retaining the contents of any spillinto a drainage system.

a. Heavy 011 Bulk Storage Tankb. Light Oil Bulk Storage Tank

- c. Turbine Lubricating Oil Tanksd. Oil Recovery Tanke. Fuel Additive Tank (Unit 3)f. Package Boiler Fuel Tankg. Drum Oil Room (Warehouse)h. Lubrication 011 Storage Room

B. Drainage Systems

1. Floor Drains

Floor drains in the powerhouse flow to the oily wastelift stations. The oil waste system is described inSection IV-B-4 of this plan. Figure VI-1 is a flowdiagram of the oily waste system.

2. Storm Drains

Parking lot drains are routed to the discharge andintake canals.Drainage from the area north of Unit 3 is routed to the

— „_,_- -Hntake canal. Storm drainage from other areas in thevicinity of the powerhouse is routed to the dischargecanal.Storm drains in the vicinity of the bulk oil storagearea are routed to the oily waste retention pond.

3. Dike Drains

a. Heavy 011 and Light 011 Storage TanksThe heavy oil and light oil storage tanks aresurrounded by a dike 10 feet in height. This diked

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storage area will contain 274,000 barrels of fluidand may be isolated from the oily waste system bytwo manually operated valves at light station #7.These valves are normally closed but would beopened to gradually release the oil from the dikedstorage area if a spill required their operation.Lift station #7, which acts as an Intermediatetransfer point between the diked storage areashutoff valves and the oily waste retention pond,is equipped with two permanently mounted lift pumpsand is located in an area not subject to flooding.

b. Package Boiler Fuel Tank

The package boiler fuel tank is surrounded by a5-inch high concrete curb with a drain to oilywaste lift station #5.

c. Unit 3 Fuel Additive Tank

The Unit 3 fuel additive tank 1s surrounded bycinder block dike which 1s capable of containingthe contents of the tank. The dike is equippedwith a manually operated valve for removing

-,. rainwater. The valve, normally closed, dischargesto the intake canal.

d. Transfer Facilities

The following oil transfer facilities have curbedareas that drain to oil waste lift stations.

1. Heavy Oil Transfer Pump House11. Light Oil Transfer Pump House111. Heavy Oil Burner Pump House (Unit 3)iv. Heavy Oil Heater/Reboiler Building

4. Oily Waste System

The oily waste system is designed to prevent dischargeof oily waste to navigable waters by collecting wastesfrom potentially oily areas in a series of sumps,pumping the oily waste to a retention pond, andrecovering the oil for reuse as boiler fuel. A flowdiagram of the oily waste system is shown iniv-i.

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to the oily waste retention pond as described inparagraph 8.4 of this section.

Wash water effluents from mechanical dust collector andash hoppers, boiler seal trough flushing, preheaterwashes, and boiler acid washes are collected at liftstation No. 9, which is located south of the Unit 3burner pump house.

Boiler blowdowns from Units 1, 2 and 3 are collected inthe boiler blowdown sump located south of the Unit 2distilled water tank.

Lift station No. 9 and the boiler blowdcwn sump eachdischarge to the active ash pond for treatment of thewaste. The only exception 1s that during a preheaterwash or a boiler acid wash the effluent from liftstation No. 9 1s diverted by a valve at the ash ponds tothe metal cleaning wastes basin for treatment. Detailsof the metal cleaning wastes treatment facilities aregiven in Section 8.0, Volume 2 of the EnvironmentalControl Manual.

Lift stations 8 and 11 which collect demineralizerwastewater and route 1t to the ash ponds are discussedseparately in Section 6.0, Volume 2 of the EnvironmentalControl Manual. __

A number of other drains are routed to catch basins orone of four sumps which discharge to either the intakecanal or the discharge canal. These drains collectdrainage such as stormwater, demlneralized water tankdrains, bearing cooling water leakage, condensate, andcertain floor drains in areas where there is no oilywaste.Figure IV-2 is a flow diagram of the low volume wastesystem. A more thorough description of the low volumewaste system is contained in Section 4.0, Volume 2 ofthe Envi ronmental Control Manual for Yorktown PowerStation,

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Potentially oily waste from the Unit 3 floor drains iscollected at lift stations.No. 1 and Mo. 2, which alsocollect Unit 3 condenser drains and hotwell sumpdischarges. Lift stations No. 1 and 2 pump to liftstation No. 5 which discharges to the oily wasteretention pond. Swltchgear house floor drains, Unit Zfloor drains, and drains from the out-of-service oiladditive storage area are also collected by lift stationNo. 5.

Unit 3 turbine-generator and boiler area floor drainsare routed to lift station No. 4 which pumps thepotentially oily waste to the oily waste retention pond.

Lift station No. 6 collects potentially oil wash fromthe Unit 1 floor drains, Unit 1 and 2 burner pump house,Unit 3 burner pump house, the heater/reboller house, anda road trench. Lift station No. 6 pumps directly to theoily waste retention pond.

The drains from the heavy and light oil storage tankdiked areas, the heavy and light oil transfer pumpstations and foam house, and the road trench beside thetransfer pump stations are routed to lift station No. 7which pumps into the oil waste retention pond.

'^t the oily waste retention pond oil is skimmed from thesurface and pumped into an oil recovery tank. Therecovered oil is pumped to the heavy oil storage tankfor reuse as Unit 3 boiler fuel. The water fraction ofthe pond is discharged to lift station No. 13 whichpumps the water to the active ash pond. The active ashpond discharges to the York River via the dischargecanal. (The active ash pond refers to one of two pondswhich is valved into service.)

A more thorough description of the oily waste systemfacilities is contained in Section 5.0, Volume 2 of tneEnvironmental Control Manual for Yorktown Power Station.

5. Low Volume Waste Handling System

A system of drains, sumps, and lift stations collectslow volume wastes from various areas around the stationand delivers them to either the ash ponds, the dischacanal, or the intake canal. Drains that are likelybe contaminated by oil have been segregated and directed

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E. Spill Cleanup Equipment

Equipment used by station personnel to cleanup oil spills isstored in two locations: 1) a storage trailer for Immediateresponse and 2} the warehouse for supplemental supply. Thefollowing sorbent materials are available:

Warehouse:

Sorbent Application Minimum Stock Amount

Sorbent Blankets Oil on Water 3 rolls {3'x2GO'/rGll}Sor-bent Pillows Oil on Water 3 bags (10/bag)Oil Snare Heavy Oil 50 boxesGranular Sorbent 011 on Land 50 bags

An aluminum boat with a gasoline motor 1s available at thestation for deploying and collecting cleanup materials in theintake and discharge canals.

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C. Weirs, Booms, and Other Barriers

1. Cooling Water Discharge Canal

A permanent 36-inch floating oil-containment boom isdeployed across the discharge canal to prevent oil fromreaching the York River.

2. Ash Pond Weir Boxes

Each ash pond has a skimmer board and weir box toalleviate the discharge of oil which may accidentallycarry over from the oily waste retention pond.

3. Oily Waste Retention Pond

A floating boom is deployed 1n the oily waste retentionpond to contain the oil fraction of the influent in theeast portion of the pond, facilitating the recovery ofoil from the pond.

D. Oil-Water Separators

Oily Waste Retention Pond :

The oily waste retention pond acts as an oil-water separatorfor wastewater collected by the oily waste system. Water isdrained from The bottom of the pond to lift station No. 13through a I0-1nch line in the north wall of the pond near thenorthwest corner. The invert of the line as it exists thepond is approximately 2 ft. from the bottom of the pond, butthe end of the pipe angles downward Into the pond so thatwater is drawn from the pond into the pipe at between 6 and14 inches from the pond bottom, and only when the pond deothis at least 24 inches. This allows oil to remain on thesurface of the pond while water is drawn from the bottom.

A l2-1nch overflow line above the I0-1nch drain line alsogoes to lift station No. 13 in the event of abnormally highflows to the pond. The invert of the overflow line as 'texits the pond is 7 ft. 6 in. from the bottom of the para.The end of the overflow line in the pond 1s also angleddownward so that when the level reaches the invert level -fthe overflow line, water is drawn from an approximate cec:^of 2 ft. 6 in and oil is retained on the surface.

Environmental ComrcAR00005I

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UNIT 1 **- OEMmERALIZEB DRAINS » LtFT STATION NO. 11

UNIT 3 - OEMINERAUZER DRAINS- ACIO AND CAUSTIC TANK DRAINS — * LIFT STATION NO. »

PREHCATER WASH WATERBOILER ACID WASH WATERMECHANICAL DUST COLLECTOR WASH

WATERSEAL TROUGH FLUSHING

LIFT STATION NO. t

NORTHASH POND

UNIT 1, 2, & 3 - BOILER SLOWDOWN BOILER SLOWDOWN SUMP

ELECTRICAL TUNNEL SUMP J--1 »«**»MG COOLIWO WATER

UNIT 3 OIL ADDITIVE STORAGE AREAFLOOR DRAIN FROM BATTERY ROOMSINK It FLOOR DRAIN FROM SAMPLE ROOMROOF DRAINSVARO DRAINSUNIT 1. 2. Si 3 DISTILLED WATER TANK

DRAINS

£Mff ROCNCY OVERFLOW*]

SOUTHASH po*;n

METAL CLEANINGWASTES BASIN

flPt TRENCH SUMP

COOLINQ WATEROISCHAKGt CANAL

CONOCNSATE WATER TANKYARD DRAINSROAD TRENCH NO. 4 - — BACKWASHFOAM HOUSE NO. aELECTRICAL ROOMSERVICE WATER DRAINCHLORINE BUILDING SUMPINTAKE STRUCTURE VALVE BOX SUMP

SCBECN

INTAKtCANAL

INTAKESTRUCTURE

I O I S C H A H G tYORK R1V

STATION USE

FIGURE IV-2YQRKTQWN POWER STATIONLOW VOLUME WASTE SYSTEM

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CONDENSER DRAINSUNIT 3 HOTWiLL SUMPUNIT 3 FLOOR DRAINS

LIFT STATIONNO. t

UNIT 3 FLOOR DRAINSPOWOEX DRAINS

LIFT STATIONNO. 2

UNIT 3TG4 BOILER AREAFLOOR DRAINS

UNIT 3 BURNER PUMPHOUSE

SWITCHGEAR HOUSE FLOOR DRAINSUNIT 2 FLOOR DRAINSCONDENSER DRAINSTOBB1HE LOBS OIL TAHXS

NORMALLY

LI FT STATIONNO. 5

UNIT 1 FLOOR DRAINSUNIT 1 ft 2 BURNER PUMP HOUSEHEATER/REBOILER HOUSEROAD TRENCHASH PONDS OIL RECOVERY

LI FT STATIONNO. •

OILY WASTEREnNTION PONO

HEAVY OIL STORAGE DIKED AREALIGHT OIL STORAGE DIKED AREA 'HEAVY OIL TRANSFER PUMP STATIONLIGHT OIL TRANSFER PUMP STATIONOIL STORAGE AREA FOAM HOUSEROAO TRENCH

LIFT STATIONNO. 7

TANK

HEAVY Oll«OIL STORAGE *-————————^""^ RECOVERY

OIL RECOVERPUMP

TANK

WATER

LIFT STATIONNO. 13

ASHPONO

OISCHARGCANAL

OIL SKIMMER PUMP VOR KR1VEP

FIGURE IV-1YORKTOWN POWER STATION

OILY WASTE SYSTEM

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2. National Response Center (24 hours) 1-800/424-8802

When notifying the above governmental agencies of a spillevent, questions pertaining to the location, date, and timethe spill occurred should be answered accurately, and allanswers recorded on the Environmental Incident Report Form,shown in Figure V-l. Unless a known quantity has beenspilled, no estimate should be attempted.

C. Notification of Water Quality Personnel

The Environmental Compliance Coordinator (or in his absence,•the superintendent notified of the spill) will also report

=-•-.-,--incidents to the Company's Water Quality Department inRichmond within 12 hours. One of the following personnelshould be called, starting from the top:

*

Office Home1) W. G. Bishop 804/273-2988 804/784-60252) R. L. Blrckhead 804/273-2992 804/740-05463) R, J. Williams 804/273-2994 804/741-94984) J. 8, Livingstone 804/273-2985 804/598-33985} G. R. Knauer 804/273-2996 804/672-84186) M. F, Kadlubowski 804/273-2991 804/550-31217) 8. M. Marshall 804/273-2990 804/360-5174

0. Environmental Incident Report Form

An Environmental Incident Report Form (Figure V-l) will becompleted for each oil spill and a copy will be sent within 2days to the Company's Water Quality Department in Richmond,

- Virginia, with a copy kept 1n the station environmental file.

E* Spill Containment and CleanupAs soon as possible after discovery* action should be takento contain the oil spill. If practicable, the oil flowshould be restricted by blocking a hole 1n a fuel line,closing appropriate valves, etc. The spill should secontained by any or all of the following:

1. Construct an earth dam to contain the spill.

2. Dig a pit to collect the oil.

3. Oam up any flow in ditches, etc.

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V. SPILL CONTINGENCY PLAN

A. Notification of Facility Personnel

In the event of a spill, the on-duty shift supervisor willimmediately notify one of the following personnel, startingat the top of the list:

Work HomeW. 0. Rainey, Jr. 804/898-2555 804/245-4718(Env, Compliance Coordinator)

P. W. Deal 804/898-2534 804/693-5376(Supt. Tech. Services)

D. K. Drohan 804/898-2533 804/253-0300(Supt. Operations)

C. W. Embler 804/898-2535 804/898-1176(Supt. Maintenance)

When notified of a spill, the above individual will in turnnotify the Station Manager, or his designee.

Work Home

L. £. Newsome 804/898-2532 804/890-2797

8. Notification of State and Federal Agencies

If an oil spill reaches the York River, the EnvironmentalCompliance Coordinator will report the incident to theappropriate government agencies. In the absence of theEnvironmental Compliance Coordinator, the incident will bereported by either the Superintendent of Technical Services,the Superintendent of Operations, or the Superintendent ofMaintenance, in that order. The state agency to be notifiedis the Virginia State Water Control Board, The federalagencies to be notified are the Environmental ProtectionAgency and the U.S. Coast Guard, both of which can benotified by calling the National Response Center. Spillsshould be reported within 24 hours.1. Virginia State Water Control Board

(Tidewater Regional Office, Va. Beach l-804/499-8742(Nights and Holidays: 1-804/Z57-008Q

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Section 10.12 of the Environmental Control Manual containslist of approved waste disposal contractors.

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4. Apply sorbent material obtained from the emergency oilspill trailer or warehouse (such as sorbent pillows,etc.).

5. If the oil has reached the discharge canal or anyflowing stream (such as the York River) containmentshould be effected by use of floating booms, oil snares(for No. 6 oil), or other material available from theemergency oil spill trailer or warehouse,

Oil pumps should be used to retrieve the surface oil.Saturated sorbents, contaminated gravel and earth should becol-lected and removed.

If station personnel should require outside assistance in oilspill cleanup, one of the following contractors should becontacted:

1. Industrial Marine Service, Inc. Norfolk, Virginia(24-hour with answering recorder) 804/543-5718 A

2. 0. H. Materials Corporation Richmond, Virginia(Toll Free, 24-hour) 800/537-9540

3. O&L Industries Norfolk/Newport News, VaNewport News (24-hours) 804/874-3900.Norfolk (24 hours) '. 804/485-5222

4. E.S.I. (Environmental Services) Richmond, Virginia(24-hour with answering service) 804/231-9843

5. Environmental Options Richmond, Virginia(24-hour) 804/264-4797

For additional information on containment and cleanup of oilspills on water and land, see Appendices A and B,respectively, at the end of this plan.

F. Disposal of Oil and Cleanup MaterialsIt is necessary that the oil and materials used to clean upoil spills are properly disposed of. Proper disposal of theclean up material is dependent upon whether the oil spilledneeds to be classified hazardous or nonhazardous. Refer toSection 10.8 of the Environmental Control Manual forrequirements for disposal of waste oil and oilmaterials.

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VI. "SPILL PREVENTION PROCEDURES

A. Facility Drainage - Operating Procedures

1. Diked Areas - Procedures for Draining

a. Fuel Oil Storage Tanks

The light oil and heavy oil storage tanks areenclosed by a dike which is capable of holding thecontents. of the larger tank and directing spills tothe oily waste retention pond. Rainfall whichaccumulates in the diked area 1s normally removedby natural evaporation. Two manually operatedvalves, which are normally closed, are only openedunder strict supervision to drain oil from the areato lift station #7.

b. Turbine Lubricating Oil Storage Tanks

The lubrication oil storage room has a 6-inch highconcrete curb at the doorway to contain oil leaksand spills. The turbine lube oil tanks located onthe southslde of the plant are surrounded by a6-inch high concrete curb to contain oil leaks and

* spills. Oil inside the curbs would drain to 11ftstation 15 using portable pumps.

c. Unit 3 Fuel Additive Tank

The Unit 3 fuel additive tank Is surrounded by adike which 1s capable of containing the contents ofthe tank. Operations personnel inspect the 41 kedaily. A manually operated valve, which isnormally closed, is opened only to drain oil-freewater from the diked area. The discharge from thevalve 1s routed to the intake canal*

d, 011 Recovery Tank

The oil recovery tank is surrounded by a eartnerndike which directs rainwater and spills to the oilywaste retention pond through a 4-inch drain line,

2. Undiked Areas - Oil Collection Procedures

a. Oil Transfer Pumps

Environmental Control v * - .-a

SPCC PUW

ENVIRONMENTAL INCIDENT REPORTQUALITY DEPARTMENT

! a*nuauneM. MHO oni eew MTMIN i e*rt TO UCH

»€ 0* fclM

i * S

I €.1 «.

FIGURE V-lYORKTOWN POWER STATION

ENVIRONMENTAL INCIDENT REPORT

Page 5-5

.•V4u«KK)MMT ^ M^MSIXCVnON ~ H«<AJIOOU« »M*TMet V1U.MKUM

*I 'f .iri»TM.»AmucH ————————————————— ...JlflWUTI ———————————————————

i

' ii";

i

i

r QMIC1M O» fUMTJMCi KlAMOUNt I* •I

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Page 6-3

the truck and driver at all times and ensure that no oil isspilled or that in the event of a spill, appropriate stepsare taken to contain, remove, and/or prevent furtherdischarges.

In addition, signs will be posed at each unloading areawarning drivers to disconnect all hoses and close all valvesbefore moving their vehicles.

C. Monitoring, Inspections and Records1. Monitoring

The quantity of oil in the Number 6 oil storage tank isdetermined by a level Indicator 1n Unit 3 control room.Operations personnel also read and record the level ofthe Number 2 oil tank once per shift. 'Soth tanks are"plumbed" monthly.

2. Inspection Procedures

To insure that the oil storage facilities are intact andto correct any deterioration or malfunction before anoil spill or leak occurs, an inspection program iscarried out at the power station.

-a*

a. Monthly Inspections

._..__ The Environmental Compllance Coordinator wi 11_ __inspect the oil__ facilities monthly, A list of

items which should be checked each month isprovided in Figure VI-1, Hotes pertaining to themonthly inspections are recorded on the "MonthlyOil System Inspection Log", shown as Figure IV-2.These inspection sheets will be kept on file for atleast three (3) years after which they may bestored or destroyed. Tht areas to be inspectedare:

1} Heavy Oil Storage Tank2J Heavy Oil Transfer Pump House3) Heavy Oil Burner Pump House (Unit 3)4) Light Oil Storage Tank5) Light Oil Transfer Pumps .6) Oily Waste Retention Basin and Recovery Tank7) Ash Settling Basins (2)8) Package Boiler Light 011 Tank

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Oil spi11ed or 1eaked from the Number 6 oi1transfer pumps or heaters would be collected in theoily waste system.

Oil spilled or leaked from the Number 2 oil truckunloading transfer pumps would drain to the oilywaste pond. Personnel will shut the pumps downimmediately upon discovery of a leak or spill.

3. Drainage Treatment - Operating Procedures

a. Oily Waste System

Proper operation and maintenance of the oily wastesystem is necessary to prevent oily wastes fromreaching the York River. High level.alarms on theoily waste lift stations warn of potentialoverflows which may result in reportable spills.If the alarm level is reached, station personnelshould attempt to prevent the sump from^overflowing, possibly by using a portable pump toWtransfer the waste into drums until the cause ofthe high level can be determined and corrected.

A detai1ed operating description for each liftstation can be found in Volume 2 of the •Environmental Control Manual.

b. Low Volume Waste System

Low volume waste Is discharged to either the ashponds, the discharge canal, or the intake canal.All of the low volume lift stations areautomatically controlled by float level switches.A detailed operating description for the low volumewaste system can be found 1n Section 4.0, Volume 2of the Environmental Control Manual.

B. Tank Truck Unloading Facilities

During the process of unloading oil, the Department c*Transportation's regulations for the loading and unloading ofhazardous materials will be followed as they pertain to tneseoperati ons and are outl 1 ned in CFR, Ti tl e -i 9Transportation, Part 177, Subpart B - Loading and Unloa(see Appendix C). An operator from the station will atte"C

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c. Above Ground Tanks

The above ground bulk oil storage tanks willundergo integrity testing periodically. The EPArequires integrity testing using such techniques as

;___hydrostat1c testing, visual Inspections, ornon-destructive shell thickness testing. Tanksupports and foundations should be inspected aspart of the tank testing program.

1- Integrity Testing

To meet these requirements, the EnvironmentalCompliance Coordinator may schedule periodictests by the company's Non-Destructive Testinggroup. The tests should follow, theseguidelines:

a) Test Point Locations for Vertical Tanks

- At least 12 tests should be conductedaround the base of the tank at theweld. Tests should be spaced 30"apart.

* . - At least 12 tests should be conducted 3feet above the base of the weld. Testsshould be spaced 30" apart.

-— - At least 2 test should be conductedevery 10 feet of height at easilyaccessible locations on the tank.

b) Test Point Locations for Horizontal Tanks

- At least 3 tests should be conducted onthe bottom of each tank; one at themiddle and one at each end.

- At least 2 tests should be conducted oneach side and on the top of each tank.

- At least 2 tests should be conducted oneach end of each tank.

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9) Unit 3 Oil Additive Tank10) Units 1, 2, & 3 Turbine Lube Oil Tanks (4)11) Units 1 and 2 Lube Oil Storage Room12) Lube Oil Filter & Centrifuge Areas

Any signs of tank deterioration, leaks which mightcause a spill, or accumulation of oil inside dikedareas should be noted on the "Monthly Oil SystemInspection Log" and corrected as soon as possible.The Operations Department will inspect major areasof concern as indicated on the "Daily OutsideInspection Log1. These areas are the heavy oil andlight oil storage tanks, the ash ponds, thecirculating water intake and discharge canals, fueladditive storage, chlorine solution 'storage, andthe Units 1 and 2 demineralizer reagent storagearea. The inspections will be recorded on the"Daily Outside Inspection Log", found in Figure^VI-3. 1

b. Underground Tanks and Piping

* The underground fuel tanks and piping systems willbe precision tested on a regular basis to ensurethat there are no undetected 1eaks. Preci s i ontesting should conform to the recommendations ofthe National Fire Protection Association given inNFPA pamphlet 329, "Underground Leakage ofFlammable and Combustible Liquids, 1983H, section4-3.10. Result of the test will be retained onfile in the Environmental Compliance Coordinator'soffice.

Pressure testing, with air or other gases, shouldnot be attempted. Such tests are unlikely todetect a leak that is below the liquid level in thetank, and there is severe danger of causing a tankrupture, or expulsion of contained liquid throughnormal openings. The Environmental ServicesSection of the Water Quality Department may becontacted for assistance in arranging for aprecision test.

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fa. The Monthly Oil System Inspection Logsshould be kept on file by theEnvironmental Compliance Coordinator for3 years.

c. The Tightness Testing Logs forunderground systems should be kept on

---file by the Environmental ComplianceCoordinator until subsequent testing isperformed.

d. Resul ts from the IntegH ty Tests forabove ground tanks should be graphed andkept on file so comparisons can be madefrom test to test.

e. Records of, oil deliveries and levelreadings should be kept on file in orderto maintaln proper 1nventory of oilstorage*

Securi ty

i. Control

A1T oil storage and handling fac111ties are withinCompany controlled areas.

2. Truck Unloading Connections

All oil unloading pipes are capped when not in use.

E« Responsible Personnel and Training

The Environmental Compliance Coordinator Is responsible foroil spill prevention and reporting and review of the SPCCPlan. The Environmental Compliance Coordinator will reviewannually the telephone numbers in Part V of the plan toinsure that they are current. The Water Quality Departmentshould be contacted for assistance 1n confirming telephonenumbers for regulatory agencies, Water Quality Departmentpersonnel, and spill cleanup contractors.

The Environmental Compliance Coordinator will conduct soil!prevention briefings for operating and labor personnel atinternals frequent enough to ensure adequate understanding c*the SPCC Plan. Such briefings should highlight and deserve

15725755

HOtTT

SPCC PUN

Page 6-6

All Tanks

The location of each test site should beidentified by measurements from permanenttank fixtures or landmarks. Successivetests must be performed at the same siteson each tank.

d) Record Keeping

A copy of the test results must be kepton file for comparison from test to test.The results may be graphed as shown inFigure VI-4 to calculate the replacementdate for tanks.

2. Support and Foundation Inspection

Tank supports and foundations should beinspected at the same time the shell thicknesstesting is performed. Foundation ringwallsand concrete base curbing should be inspectedvisually for evidence of generaldeterioration. Cracks or decay should berepaired immediately both for structuralintegrity and to prevent precipitation orother 1 iqulds from accumulating under thetank.

General support structures, such as piers,columns, legs, and stands* should be checkedvisually for integrity. Anchor bolts shouldbe. visually checked for integrity. Distortionof anchor bolts or columns 1s an indicator ofexcessive settling. The welds along the angleiron at the intersection of the shell and tankbottom should also be inspected. Figure VI-5illustrates specific areas of concern for theinspection of foundations.

3. Record KeepingTo summarize the record keeping requirements:

a. The Environmental Complianceshould keep a copy of each completeEnvironmental Incident Report Form.

12/20/89 Environmental ControlAR000065

SPCC PUN

Page 6-9

__ MOHTHLY TAHK INSPECTION CHECKLIST

1. Tank shell and roofa. Discoloration or flaking of coatingb. Localized corrosionc. Structural damaged. Development of hairline crackse. Bulging or cavltatlonf. Deterioration at joints and connectionsg. Obstruction of roof drains, vents, and pressure-relief devices

2. Weldsa. Localized corrosionb. Separation or distortion of welded componentsc. Development of hairline cracks

3. Rivets/boltsa. Localized corrosionb. Loosened componentsc. Missing

4. Foundations/supportsa. Cracking or deterioration of concrete rlngwall or support.b. Uneven settlementc. Slippage of tank from foundation or supportd. Buckling of.saddle or vertical supportse. Loosened anchor bolts

5. Diked areasa, Evidence of leakage on groundb. Deterioration of dikec. Standing water (does area need drained?)d. Open dike valve or missing valve lock

6. Tank Appurtenancesa. Leakage of valve stems and flangesb. Piping mi salignment, bending, or leakage (tees* couplings, elbows,

I connections)c. Deterioration of stairsd. Integrity of grounding lines andi connectionse. Fire extinguishing equipment (where applicable)f. Impressed current rectifiers (where applicable)

FIGURE VI-1YORKTOWN POWER STATIQS

TANK INSPECTIOH CHECKLIST

1Z/20/83 SRfinnnCc environment Control

SPCC PUN

Page 6-8

known spill events or failures, malfunctioning components,and recently developed precautionary measures.

12/20/89 AR000067 £"««""fl«'Contro/

•SPCC PUM

Page 6-11

TO: i. strp£*nmre&T or2. ESYItOWZXTAL COKFLI*S« CBOHUKAtCll

j BAH.T OUTSIOC ursncrta* we

true «« fetarf la t&* eea4«ta« ts4ie*t*4 m tta VI t ».«.

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FIGURE VI-3YORKTOWN POWER STATION

DAILY OUTSIDE INSPECTION LOS

12/20/89 annnnnco Snvronmerw*Contra

MOKTM _..__

SPCC PUN

Page 6-10

DATE: INSPECTOR:

ITEM

1) Heavy Oil Storage Tank

2) Heavy 011 Transfer Pump House

3) Heavy Oil Burner Pump House(Unit 3)

4) Light Oil Storage Tank

5) Light Oil Transfer Pumps

6) 01ly Waste Retention Pondand Oil Recovery Tank

7) Ash Settling Basins (2)

8) Package Boiler Light Oil Tank ,

9} Unit 3 Oil Adoptive Tank

10) Units 1, 2, & 3 Turbine Lube OilTanks (4)

11) Lube Oil Storage Room

12) Lube Of! Filter & CentrifugeAreas

NO /LEAKS (/) LEAKS/COMMENTS

•

4


MONTHLY OIL SYSTEM INSPECTION LOS

• £ n v r r o n m e m a / C o m r cAR000069

SPCC PUH SJI

Page 6-13

Tank

Tank shall - Check for rust spots,*- Pitting, hairlina cracks.

Velds - Ch«ck for hairlisas cracks, uniformity.

Rivats, Soles - Osackfor rust, datarioration,«ad halrllaa cracks .

from hoias.'

Foundation - Chack for>eruabliag, datarioration»sacpaga.

saw*ct


AREAS OF CONCERN IN A TYPICAL TANK

12/ZO/89 £mnrtyimema* Control Manual

SPCC PUN

Page 6-12

(.250**) C.37S") <.5Q<n1/4" 3/S" 1/2"

Jan. 1910 •-

Die*


GRAPHICAL CALCULATION OF ABOVE GROUND TANK REPLACEMENT DATE

12/20/89 £nv*onmenW ControlAR00007I

CONDENSER COOLINS WATER••

PAGE 7-3

7.1,3 Cooling Water Discharge Pumos - Facilities

Five discharge pumps in the Discharge Canal distributecooling water from Units I, 2, and 3 through a 14 ft.outfall line into an underwater dlffuser system to theYork River as shown on Brown and Root flowsheetCR0061-F-30I7. The discharge pumps are Ingersoll-Randtype 72-APS vertical shaft axial flow pumps rated at196,000 gpra at 25 feet total dynastic head. The pumps aredriven by 1750 h.p. General Electric induction motorsrated at 295 rpm, 3 phase, 60 hzv and 6900 volts. Thetotal capacity of the five discharge pumps is 980,000 gpm.

The discharge pumps are located in a concrete pit near theend of the condenser cooling water Discharge Canal. Thispit catches all leaks from the discharge pumps.Dewatering of the pit 1s accomplished by a sump pump ratedat 200 gpn which pumps back to the Discharge Canal.Water for shaft sealing and motor cooling of the dischargepumps is provided from the Discharge Canal by two 50 gpmsubmersible sump pumps. This water is discharged backInto the Discharge Canal.Stpp Logs can be Installed on the inlet side of thedischarge pumps during periods of maintenance on thepumps. Leakage past the stop logs Is pumped back into theDischarge Canal by means of a 735 gpm pump in thedischarge pump pits.

7.2 Description of Operations

The VPOES permit for cooling water discharge requires monitoringof:. flow

heat rejectiontemperaturetotal phosphorustotal nitrogentotal residual chlorinePH

flnOOQ072 Environmental Protection Manual12/13/91 Yorktown Voli

_™_ vwaawwKJWipr;5x HF MOKTHCAAOLMAfOWVt

CONDENSER COOLING WATER•i

PAGE 7-1

7.0 CONDENSER COOLING WATER

The condenser cooling water system takes water from the YorkRiver, passes it through the condensers* and discharges it back tothe York River via an underwater dlffuser system. Condensercooling water typically accounts for more than 96% of the flowthrough the Discharge Canal (VPDES Discharge Number 001).Condenser cooling water 1s periodically chlorinated to retardalgae growth on the condenser tubes.

7.1 Description of Facilities

Cooling water for the condensers, the bearing cooling water heatexchangers, off-line cooling of the station's air compressors, andother plant equipment is provided by two cooling water Intakepumps for Unit 1, two pumps for Unit 2, and four pumps for Unit 3.Travel ing screens protect the cooling water Intake pumps fromtrash. Screen backwash discharge Is returned to the York Rivervia the cooling water Discharge Canal. Five cooling waterdischarge pumps deliver the bulk of cooling water from theDischarge Canal to the York River through an underwater dlffusersystem. The remainder of the cooling water Is returned to theYork River via. the Discharge Canal weir.7.1.1 Cooking.Water Intake Pumps - Facilities

Condenser cooling water for Units 1 and Z 1s provided bytwo C. H. Wheeler Company pumps for each unit rated at55,000 gpm at 13.8 feet total dynamic head. Each pump Isdriven by a 350 h.p. Westinghouse motor rated at 236 rpm,3 phase, 60 haz, and 460 volts. When both pumps areoperating with only one generating unit on-line, thecombined capacity of the two pumps 1s 100,000 gpm.Condenser cooling water for Unit 3 1s provided by fourIdentical Ingersoll-Rand four stage vertical mixed-flowpumps with capacities of 190,000 gpa each at 29.25 feettotal dynamic head. Each pump 1s driven by a 1750 h.p.General Electric induction motor rated at 322 rpm. Thecombined capacity when all four pumps are operating is720,000 gpm. The cooling water Intake system for Unit 3is shown on Brown and Root flowsheet CR0061-F-3006.Units 1 and 2 are each equipped with two wash water pumpsfor washing the cooling water Intake pump screens. Allfour pumps are Worthington single-state centrifugal pumps

Environmental Protection Manual

WtOMU POWEJFMOKTH CAHOLJMA POWER

CONDENSER COOLINS WATER

•IPASE 7-5

7.2 Description of Operations (continued*

on the condenser cooling water discharge pumps and associatedpiping and valves shall coincide with the shutdown and/or annualmaintenance of at least one of the other two generating units.When such maintenance Is performed, the maximum hourly heatrejected (BTU/hr) over the weir during the repair period shall beIncluded In the Discharge Monitoring Report and such rejected heatshall not exceed 45.93 x 10" BTU/hr.When repairs are required for the intake pumps, stoplogs areplaced in front of the affected unit and water removed from thepump pit and discharged into the Intake canal. The Water QualityDepartment has notified the Virginia Water Control Board of thedischarge.

The condenser tubes are cleaned by periodically backwishlng. Thebackwash for Units 1 and Z is discharged to the Intake Canal. The

~ backwash for Unit 3 1s routed to the Discharge Canal. The WaterQuality Department has notified the Virginia Water Control Boardof the backwash discharges.

Under normal operating conditions two spare condenser coolingwater discharge pumps are available to replace an active pumpwhich fails. However, multiple pump failures could occur andresults 1n a discharge over the weir, toy such discharge, whichwould occur when three or aore pumps have failed, shall beconsidered- an upset condition and shall be reported to theappropriate regulatory agencies as discussed in Volume 1, Section6.0 of this manual.

Environmental Protection Manual12/12/91 Yorktown

' L —p jy• SH,sr _ i«>*

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iM«•• vs-*$i*0K

Vcij£ *-T~;i$f ***ifc** b£>1 • VHn feS *• ' ''11! *^-.-.., .,v , _w w" '• :;-.;;v:r: ;:;"|;^ v

(Bed)

TABLE OF CONTENTS - YORKTOWN

PAGE-11

5.1.2 Lift Station Number Z - Facilities 5-35.1.3 Lift Station Number 4 - Facilities 5-35.1.4 Lift Station Number 5 - Facilities 5-45.1.5 Lift Station Number 6 - Facilities 5-55.1.6 Lift Station Number 7 - Facilities 5-65.1.7 Lift Station Number 10 - Facilities 5-65.1.8 Lift Station Number 13 - Facilities 5-75.1.9 Oily Waste Retention Pond - Facilities 5-8

5.2 Description of Operations 5-95.2.1 Oily Waste Lift Stations - Operation 5-95.2.2 Oily Waste Retention Pond - Operation 5-10

6.0 DEMINERALIZER WASTEWATER SYSTEM 6-16.1 Description of Facilities 6-1

6,1.1 Unit 1, 2, and 3 De&ineralizers - Facilities 6-16.1.2 Lift Station Number 8 - Facilities 6-2,6.1.3 Lift Station Number 11 - Facilities 6-3

6.2 Description of Operation 6-46.2.1 Units 1, 2, and 3 Demineralizers - Operation 6-46.2,2 Lift Stations Number 8 and 11 - Operation 6-5

7.0 CONDENSER COOLING WATER 7-17.1 Description of Facilities 7-1

7.1.1 Cooling Water Intake Pumps - Facilities 7-17.1.2 Cooling Water Discharge Canal - Facilities 7-27.1.3 Cooling Water Discharge Pumps - Facilities 7-3

7.2 Description of Operations 7-3

8.0 METALS CLEANING WASTES TREATMENT FACILITIES 8-18.1 Description of Facilities 8-1

8.1.1 Valving - Facilities 8-18.1.2 Lime Slurry Tanks - Facilities 8-28.1.3 Lime Slurry Feed Systems - Facilities 8-28.1.4 Mixing Basins - Facilities________________8-3

fiDnnnA"?/-12/31/91 Yorlctown Volume 1 HHUUuO/b


PAGE-1

TABLE OF CONTENTS

£AG£

TABLE OF CONTENTS: Water Quality iTABLE OF CONTENTS: Air Quality vi

1.0 INTRODUCTION 1-1

STATION-SPECIFIC WATER QUALITY INFORMATION

2.0 SANITARY SYSTEM "• 2-12.1 Description of Facilities _ 2-12.2 Description of Operation 2-2 t

3.0 COAL PILE STORM RUNOFF COLLECTION SYSTEM 3-13.1 Description of Facilities 3-13.2 Description of Operations 3-1

4.0 LOW VOLUME WASTE COLLECTION AND HANDLING SYSTEM 4-14.1 Description of Facilities 4-1

4.1.1 Lift Station Number 9 - Facilities 4-14.1.2 Boiler Slowdown Sump - Facilities 4-24.1.3 Miscellaneous Sumps - Facilities 4-3

4.2 Description of Operations 4-34.2.1 Lift Station Number 9 - Operations 4-34.2.2 Boiler Slowdown Sump - Operations 4-44.2.3 Miscellaneous Sumps - Operations 4-4

5.0 OILY WASTE SYSTEM 5-15.1 Description of Facilities 5-1

5.1.1 Lift Station Number 1 - Facilities 5-2

Yorktown Volume 1 ARQQQ077

HKBMU POWTOC4XOUM4


- - . v - - - - - PAGE-iv13.3,2 Flow Determination 13-613.3.3 Total Suspended Solids (TSS) 13-613.3.4 Oil and Grease (O&G) 13-713.3,5 pH 13-7

13.4 Stqrmwater Runoff - Unit 3 Area - Outfall No. 005 13-713.5 Ash Ponds Effluent - Outfall No. 101 13-7

13.5.1 Sample Collection 13-813.5.2 Flow Determination 13-813.5.3 pH 13-813.5.4 Total Suspended Solids (TSS) 13-813.5.5 Oil and Grease (Q&G) 13-9

13.6 Metal Cleaning Wastes Treatment Basin - Outfall No. 102 13-913.6.1 Sample Collection 13-913.5.2 Flow Determination 13-913.6.3 Total Suspended Solids (TSS) 13-1013.6.4 Oil and Grease (OiG) 13-1013.6.5 Iron and Copper 13-1113.6.6 pH " 13-11

13.7 Coal Pile-Runoff Collection Basin - Outfall No. 103 13-1113.7.1 Sample Collection 13-1213.7.4 pH 13-12

13.8 Fly Ash Leachate Tank - Outfall No. 104 13-1313,8.1 Sample Collection 13-1313.8.2 Flow Determination 13-1313.8.3 Total Suspended Solids {TSS) 13-1413.8.4 Heavy Metals 13-1413.S.5 pH ^ 13-15

13.9 Miscellaneous Discharges - Outfall Nos. 105, 106, 107, 13-15108, & 109 ,

Appendix A VPOES Sampling Requirements A-lAppendix 8 VPDES Analytical Procedures B-l

HHUUUU / O Environmental Protection Manual12/31/91 Yorktown Voluwe 1


PAGE-iii

8.1.5 Settling Basins - Facilities . 8-38.1.6 Drainage Sump and Recirculation Pump - Facilities 8-4

8.2 Description of Operations 8-48.2.1 Preparation for Use of Facilities 8-58.2.2 Valve Operating Description 3-68.2.3 Boiler and Preheater Add Drain - Operations 8-78.2.4 Recirculation - Operations 8-88.2.5 Settling Basin Discharge - Operations 8-98.2.6 Sludge Removal and Disposal 8-11

9.0 ASH DISPOSAL SYSTEM '. 9-19.1 Description of Facilities 9-1

9.1.1 Ash Fill - Facilities 9-19.1.2 Leachate Collection System - Facilities 9-29.1.3 Sedimentation Ponds - Facilities 9-2

9.2 Description of Operations 9-29.2.1 Ash F1U - Operations 9-29.2.2 Leachate Collection System - Operation 9-39.2.3 Sedimentation Ponds - Operation 9-3

10.0 - 12.0 BLANK

13.0 VPDES CHEMISTRY LABORATORY PROCEDURES 13-113.1 Condenser Cooling Water - Outfall No. 001 13-2

13.1.1 Sample Collection 13-213.1.2 Flow Determination 13-213.1.3 Total Chlorine Residual 13-313.1.4 Temperature . 13-413.1.5 pH 13-413.1.6 Heat Rejection 13-4

13.2 Intake Screen Wash - Outfall No. 002 13-513.3 Ash Structural Fill Sediment Ponds - 13-5Outfall Nos. 003 & 00413.3.1____Sample Collection


TABLE OF CONTENTS - YORKTOWNIPAGE-v

14.0 VPOES Permit

15.0 SPCC Plan

16.0 - 19.0 BLANK

12/31/91 Yorktown Volume 1UUUUtiU Environmental Protection Manual


PAGE-vi

VOLUME 2 : STATION-SPECIFIC AIR QUALITY INFORMATION

20.0 STATION RESPONSIBILITIES : ._ 20-1

21.0 EMISSION LIMITS AND CONTROL REQUIREMENTS 21-121.1 Opacity 21-121.2 Particulates 21-121.3 Fugitive Dust 21-321.4 Sulfur Dioxide 21-521.5 Oxides of Nitrogen 21-521.6 Volatile Organic Compounds .21-621.7 Carbon Monoxide ' 21-621.8 Toxic Air Pollutants 21-6

22.0 REPORTING REQUIREMENTS . 22-122.1 Asbestos Reporting 22-1

22.1.1 Advance Notification Requirements 22-122.1.2 On-Site Representative 22-32 .1.3 Disposal 22-322.1.4 Waste Shipment Records 22-3

22.2 Excess Emissions Reports 22-422.3 Malfunctions 22-522.4 Release of Hazardous Materials 22-522.5 Fuel Quality Report 22-6

23.0 RECOROKEEPINS REQUIREMENTS 23-123.1 Asbestos / 23-123.2 Emission Monitoring 23-123.3 Emission Testing 23-223.4 Permit Recordkeeping 23-2

24.0 CONTINUOUS EMISSIONS MONITORING 24-124.1 Opacity Monitoring 24-1

____24.2 Sulfur Dioxide Monitoring_________________24-1M D n n r> n o i Envfronmenta/ Protection Ma "-a

12/31/91 Yorktown Vol tftfi 0 0 0 0 0 I

MOff TH CJUtOUMA

TABU OF CONTENTS - YORICTOWN

PAfiE-vii24.3 Monitoring Required by Permits 24-2

25.0 COMPLAINT PROCEDURE 25-i25.1 Receipt of Complaint 25-125.2 Additional Data Requirements 25-125.3 Resolution of Complaint 25-2

26.0 ADDITIONAL PERHIT REQUIREMENTS 26-126.1 Package Boiler Operating Permit 26-126.2 Conditional Use Permit 26-126.3 Non-criteria Pollutant Permit for the LIMB Project 25-226.4 Permit to Dispose of Solvent Boiler Cleaning Waste 26-2

27.0 NOISE REQUIREMENTS 27-1

28.0 FEDERAL AVIATION ADMINISTRATION REQUIREMENTS 2S-1

29.0 APPENDICESAppendix A - Registration ForaAppendix 8 - SERPAppendix C - ESP DataAppendix D - Emission Test DataAppendix E - Conditional Use PermitAppendix F - Boiler Clearing Waste Disposal PermitAppendix S - Non-criteria (IIMS) Permit c^Appendix H - Package Boiler Permit gAppendix I - Additional Documents CD

12/31/91

INTRODUCTION•I HM

PAfiE 1-1i.O INTRODUCTION

There are federal and state environmental laws regulatingeverything we do 1n business. It can be almost overwhelming totry to comprehend these laws and the hundreds of regulationsrelated to them for the first time.

But, as you should be aware, the Company 1s totally committed toenvironmental protection. Therefore, 1t is important for you tounderstand what is required of our company and what you must do toensure compliance with all pertinent regulations.

The Company is heavily regulated with regard to its air pollutantemissions and 1n the handling and treatment of wastewater, oil,PCB's, hazardous substances, and solid wastes. There are severepenalties for failure to comply with these regulations,It Is Important that you take time to carefully read andunderstand this manual, so that you will learn the requirementsfor handling these substances and how you and your job fit Intothis very important program. If you do not understand any part ofthis manual, please ask questions right away. The company isrequired to be in constant compliance with state and federalenvironmental laws and each of us must be ready to do his or herpart Immediately in the event of an environmental problem.The Company 1s totally committed to environmental protection.Therefore, "it is important for all employees to understand what isrequired of our Company, what each employee must do to ensurecompliance with all pertinent regulations, and why. Two documentsthat should guide your actions relative to environmentalcompliance are the Code of Ethics and the Corporate PolicyStatement.If you see or hear of a problem which could affect the Company'senvironmental commitment, you should report it at once. Only byeffectively coa«un1eat1ng can we efficiently do our jobs and makesure that the environment is protected.

1.1 Purpose

The purpose of the Environmental Protection Manual is to providethe background to the Company's environmental control programs andto establish, document, and control the methods and procedures forimplementing these programs in an orderly and uniform manner.

12/20/91 Yorktown Volume 2 EnvironmentalfrotecfconfiROOQ083.imsntaf Protection M

ORIGINAL(Red)

SANITARY SYSTEM••••

PA6E 2-1

2.0 SANITARY SYSTEM

The sanitary waste (sewage and domestic waste water) for YorktownPower Station 1s routed to Lift Station No. 3, and is then pumpedinto the Hampton Roads Sanitation District (HRSD) collectionsystem.This effluent is not discharged into state waters; therefore, thestation VPDES permit is not applicable.


A 4-inch gravity line collects sewage from Units 1 and 2 androutes it to Lift Station No. 3, which 1s located south of Unit 2.Another 4-inch gravity line directs sewage from Unit 3 to LiftStation No. 3. The two pumps at Lift Station No. 3 pump thesanitation waste via a 6-inch line to the HRSD system. A flowdiagram of the sanitary system Is shown in Figure 2.1.

2.1.1 Lift Station Number 3 - Facilities

. Lift station No. 3 consists of a 12-foot deep sumpconstructed of a 72-1nch diameter reinforced concretepipe mounted vertically on a reinforced concrete pad andequipped with two vertical lift pumps. The inlet linesfrom Units 1 and 2 and from Unit 3 enter the sump on theeast and west sides, respectively, approximately 6 feetabove the sump floor.The two sewage pumps are Aurora Model 632 vertical liftpumps rated at 50 gpa against 20 feet of total dynamichead. Each pump 1s driven by a 2 h.p. General Electricinduction motor rated at 1155 rpm, 3 phase, 60 hz, and460 volts.Pump operation is controlled automatically by anEnvirotech Model 801 Sensall ultrasonic liquid levelswitch and an electronic switching device for alternatingthe pumps. General Electric controls for the pumps arelocated on a panel adjacent to the sump. Two hour metersare mounted on the control panel for tracking the runningtimes of the two pumps.

12/12/91 YOrtCtQWn ¥01

SANITARY SYSTEM••••••••••••

PAGE 2-3

uwriaaSAMMYWSTE

UFTSTAnONHas srtsrai

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UMT3

FIGURE 2.1YORKTOWN POWER STATION

SANITARY SYSTEM FLOW DIAGRAM

Yorktown Volume 2 Environmental Protection

COAL PILE STORM RUNOFF COLLECTION SYSTEM

-' PA6E 3-1

3.0 COAL PILE RUNOFF COLLECTION SYSTEM

This system collects all storm runoff from the coal storage area,provides a means of treament and flow measurement, and releases 1tinto the station Discharge Canal (VPDES Outfall No. 103).


The station coal yard area 1s located on the south side of thestation and comprises approximately 10 acres, with about 8 acresdedicated to the storage of approximately 225,000 tons of coil forUnits 1 and 2. The York County Conditional Use permit limits theheight of the coal pile.Runoff from the coal pile is directed to the concrete basin viadrainage trenches around the perimeter of the pile. A decantstructure adjacent to the southeast side of the basin provides ameans of lowering the water level in the basin. Details of thebasin and decant structure are shown on drawings E738319-CX-Q4, -05, and -06, prepared by J. K. Timmons and Associates, Inc. in1983. A 90* V notch weir was installed in 1989 at the inletheadwall of the 36-1nch concrete pipe leaving the decantstructure. The 36-inch concrete pip* routes flow beneath theearthen bera to a ditch which directs flow to another 36-inch pipeemptying into the east side of the Discharge Canal. The basindischarges into the decant structure via an 8-inch steel pipe,controlled"via a shear gate at the outlet of the pipe, or over aconcrete weir.The Coal Pile Storm Runoff Basin measures 675' x 87* x 8* and hasa total volume of 2,361,060 gallons. However, 1,228,425 gallonsIs dead storage which cannot be drained by the decant structure,and 1,132,995 gallons Is "live* storage between the overflow weirand the decant pipe.

3.2 Descriptions of Operations

Flows from tht runoff basin can be determined by measuring thedepth of the water above the apex of the weir notch and usingTable 3.1.The VPOES permit requires that the effluent in the basin bemonitored twice per month for total suspended solids (TSS); thelimits art 50 ag/1 as i dally maximum. Although there are no pHHalts, the basin Is monitored periodically by station laboratorypersonnel to determine pH prior to discharge. If necessary, the

12/12/91. p ft n n fi p c orktOWl YOlUBe~~2 Environmental Protection

COAL PILE STORM RUNOFF COLLECTION SYSTEMmmmmPAGE 3-3

FLOW THROUGH 90* V-NOTCH WEIR AS >Determined by Q - Ch" tan (X/2) (448.8)

Where: Q - flow 1n gpmC - weir coefficient estimated at 2.6 (unit less)h * head above weir apex In ft. (measured at least 1

ft. before weir)X - angle of V-notch In degrees

Staff GaugeReading (Inches) Flow (SPH>

1 21 1/2 62 132 1/2 233 363 1/2 544 754 1/2 1005 * 1315 1/2 166

TABLE 3.1

12/12/91 Yorktown Volume 2 Environmental Protection ManualAR000087

LOW VOLUME WASTE COLLECTION ANDHANDLING SYSTEM

PAGE 4-1

4.0 LOW VOLUME WASTE COLLECTION AND HANDLING SYSTEM

A system of drains, sumps, and lift stations collects low volumewastes from various areas around the station and delivers them toeither the Ash Ponds, the Discharge Canal, or the Intake Canal.Drains that are likely to be contaminated by oil have beensegregated and directed to the Oily Waste Retention Pond asdescribed in Section 5.0.


Wash water effluent from dust collector and ash hopper wash down,boiler seal trough flushing, preheater washes, and boiler acidwashes are collected at lift station No. 9 which is located southof the Unit 3 burner pump house.Boiler blowdowns from Units 1, 2, and 3 are collected 1n theboiler blowdown sump located south of the Unit 2 distilled watertank.

Lift station No. 9 and the boiler blowdown sump each discharge tothe ash ponds for treatment of the waste. The only exception isthat during a preheater wash, mechanical dust collector wash, or aboiler acid wash, the metal cleaning wastes discharge from liftstation No. 9 is diverted by a valve at the ash ponds to the MetalCleaning Wastes basin for treatment. Details of the MetalCleaning Wastes treatment facilities are given in Section 8.0.Lift stations 8 and 11, which collect demineralizer wastewater androute it to the ash settling ponds, are discussed separately inSection 6.0.

A number of other drains are routed to catch basins or one of foursumps which discharge to either the Intake Canal or the DischargeCanal. These drains collect drainage such as stonawater,deaineralized water tank drains, bearing cooling water leakage,condensate, and certain floor drains in areas where there is nooily waste.See Figure 4.1 for a flow diagra* of the low volume waste handlingsystem.4.1.1 Lift Station Number 9 - Facilities

Lift station No. 9 consists of a 14 ft.-9 In. x 12 ft.-6in. sump, 12 feet deep, equipped with two sump pumpswhich discharge through a 10-inch acid resistantfiberglass line to the ash settling ponds. The pumps, by

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4.1.3 Miscellaneous Sumps.- Facilities

There are four small sumps which collect minor amounts ofdrainage from various areas in the station and dischargeto either the Intake Canal or the Discharge Canal. Afifth sump discharges to lift station No. 1 whichdischarges to the Oily Waste Retention Pond as discussedin Section 5.0.

The electrical tunnel sump collects rainwater and waterfrom the fire protection system and pumps it to thebearing cooling water pipe trench sump. This sump alsocollects rainwater and salt water leakage from thebearing cooling water system and then discharges to the42-inch bearing cooling water discharge line to the •Discharge Canal.Salt water leakage from the discharge of the Unit 3screen wash pumps which supply the chlorinator buildingis collected by the chlorinator building sump and pumpedto a nearby catch basin. The catch basin drains to theIntake Canal. .The fifth sump is the Unit 3 hotwell sump which collectsUnit 3 condenser drainage and pumps It to lift stationNo. 1 which discharges to the Oily Waste Retention Pondvfa lift station No. 5.

All five sumps are equipped with identical Well Model SEBsubmersible sump pumps rated at 50 gpm against totaldynamic heads varying from 20 to 30 feet. The pumps aredriven by integral 1.5 h.p. motors rated at 1150 rpm, 3phase, 60 hz, and 460 volts. The pumps are automaticallycontrolled by float level switches. Brown and RootDrawing CR0061 F-3015-D illustrates the flow paths forthese sumps.


4.2.1 Lift Station Number 9 - Operations

The pumps at lift station No. 9 operate automatically bymeans of float level switches to prevent overflowing thesump. Normally, only one pump at a time will operatewith the controls alternately selecting the lead pump.If the outer level continues to rise, a float switch willactivate the second pump. High level alarms willactivate, should the water rise to a certain level.

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4.2.3 Miscellaneous Sumos - Operations (continued^

River, it must be reported as a permit exception to theappropriate regulatory agencies as discussed in Volume 1,Section 6.0 of this manual.

AROOQQ90- Environmental Protection Manual12/12/91 Yorktown Voli


UMTS

UMtttM

PAGE 4-6

FIGURE 4.1YORCTOWN POWER STATION

LOW VOLUME WASTE HANDLING SYSTEM FLOW DIAGRAM

Environmental Protection Manual.Yorktown Volume 2

MRGMM *OMVff

OILY WASTE SYSTEM••H

PAGE 5-1

5.0 OILY WASTE SYSTEM

The oily waste system is designed to prevent discharge of oilywaste to navigable waters by collecting wastes from potentiallyoily areas in a series of sumps, pumping the oily waste to aretention pond, and separating the waste oil for reuse as Unit 3boiler fuel.


The following areas in the station generate potentially oilywastes which are directed to the Oily Waste Retention Pond fortreatment;

turbine-generator and boiler areas for each unit,burner pumphcusesswitchgear house floor drainsheater/reboiler house floor drainsdiked heavy and light oil storage tank areasheavy and light oil transfer pump stationsoil storage area foam houseAffloco Phase II oil storage

A flow diagra^of the oily waste system is shown in Figure 5.1.

Potentially oily waste from the Unit 3 floor drains 1s collectedat lift stations No. 1 and No. 2 which also collect condenserdrains, and Unit 3 hotwell sump discharge* Lift Stations No. 1and No. 2 pump to Lift Station No. 5 which discharges to the 01lyWaste Retention Pond. Switchgear house floor drains, Unit 2 floordrains, and condenser drains, are also collected by Lift StationNo. 5.

Unit 3 turbine-generator and boiler area floor drains and Unit 3burner pumphoust drains are routed to lift station No. 4 whichpumps the potentially oily waste to the Oily Waste Retention Pond.Lift station No. 6 collects potentially oily waste from the Unit 1floor drains, the Unit 1 and 2 burner pumphouse, the ash settlingponds, the heater/reboiler house, and a road trench. Lift StationNo. 6 pumps directly to the Oily Waste Retention Pond.The drains from the heavy and light oil storage tank diked areas,the heavy and light oil transfer pump stations and foam house, andthe road trench beside the transfer pump stations are routed to11ft station No. 7 which pumps into the Oily Waste Retention Pond.

Environmental Protection Ma>12/18/91 Yorktown Volume 2

OILY WASTE SYSTEM

PAGE 5-3

5.1.1 Lift Station Number 1 - Facilities (continued!

Lift station No. 1 discharges into a 10-inch line from LiftStation No. 2 to Lift Station No. 5 from which the waste ispumped to the Oily Waste Retention Pond.

5.1-2 Lift Station Number 2 - Facilities

Lift Station No. 2, located in the Unit 3 basement at thenorthwest corner of the turbine-generator area, consists ofa 10 ft. diameter sump, 11 ft.-4 in. deep, equipped withtwo pumps. One is an Aurora Series 630 vertical lift pumprated at 400 gpm at 37 feet total dynamic head. The otheris a Gorman-Rupp Model T3A3-B centrifugal pump rated at 250gpm at 37 feet total dynamic head.The Aurora pump is driven by a 10 h.p. General Electricmotor rated at 1170 rpm, 3 phase, 60 hz, and 460 volts.The Gorman-Rupp pump is driven by a 15 h.p. Goulds motorrated at 1750 rpm, 3 phase, 60 hz, and 230/460 volts.General Electric controls for the pumps are locatedadjacent to the sump.The pumps are activated automatically by level switches tokeep the level in the sump less than 5 ft.-2 in. deep inorder to prevent water from bactting-up in the drain lineentering the sump. The Gomun-Rupp pump is activatedfirst, followed by the Aurora pump if both are needed. AMercoid high-level alarm switch at 5 ft. -8 in. depthactivates an annunciator drop at the annunciator boardlocated near the elevator on the inside of the north wallin the Unit 3 basement as well as one in the Unit 3 ControlROM. Lift Station No. 2 discharges into a 10-inch line toLift Station No. 5 from which the waste is pumped to theOily Waste Retention Pond,


Lift Station No. 4, which 1$ located In the Unit 3 basementon the east side of the turbine-generator area, consists ofa 6 ft. diameter sump, 8 ft,-11 in. deep, equipped with twooperating pumps and one spare pump. The original pumpswere two Lawrence Pump Company Model HBO-SH vertical liftpumps rated at 225 gpn'at 72 feet total dynamic head. Theoriginal "A" pump remains in service but the "B" pump isout of service and 1s kept at the lift station only as aspare. The operating "B" pump is a Gorman-Rupp Model T3A3-B centrifugal pump rated at 150 gpm at 72 feet totaldynamic headfl.Rnnnf}g3———————————————————


VMGMUPOWER

OILY WASTE SYSTEM

^ •1•T -,- - ^ PAGE 5-5

5.1.4 Lift Station Number 5 - Facilities (continued^

an annunciator drop at the annunciator board located in theelectrical control room on the west end of the chemicalstorage building near the Oily Waste Retention Pond. Thealarm switch also activates an annunciator drop in the Unit3 Control Room.

Lift Station No. 5 discharges into an 8-inch line to theOily Waste Retention Pond.


Lift Station No. 6, which is located northwest of the Unit1 and 2 burner pumphouse, consists of a 10 ft. square by 13ft-3 in. deep sump equipped with two operating pumps andone spare pump. The original pumps were two Lawrence PumpCompany Model HBD-SM vertical lift pumps rated at 300 gpmat 67 feet total dynamic head. The original "A pump isout-of-service, but is kept at the lift station as a spare.The original "S* pump remains in service, but is designatedpump "A" for the controls. Hie operating "B" pump is aGorwan-Rupp Model T3A3-B centrifugal pump rated at 215 gpmat 67 feet total dynamic head.The Lawrence pumps are equipped with 15 h.p. GeneralElectric motors rated at 1170 rpm, 3 phase, 60 hz, and 460volts. The Soraan-Rupp pump is driven by a 15 h.p.Westinghouse Lift-Line T motor rated at 1755 rpm, 3 phase,60 hz, and 230/460 volts. Pump controls, by Grouse-Hinds,are located adjacent to the sump.The pumps are activated automatically by General ElectricType CR2931-DA6 float level switches to keep the level inthe sump below 5 ft.-9 in. deep in order to prevent waterfrom backing-up in the Inlet lines to the sump. TheGoman-Rupp pump is activated first, followed by theLawrence pumps if both are needed. A Mercoid TypeA190E7310 high-level alara switch located at a depth of 6ft.-3 in. activates an annunciator drop at the annunciatorboard located in the electrical control room on the end ofthe chemical storage building near the Oily Waste RetentionPond. The alara switch also activates an annunciator dropin the Unit 3 Control Room-Lift Station No. 6 discharges through a 6-Inch line to the01 ly Waste Retention Pond.

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OILY WASTE SYSTEM

"- PAGE 5-7

5.1*7 Lift Station Number 10 - Facilities (continued)

The pumps are equipped with float level switches with anelectronic alternator to keep the level in the sump below 9ft. deep in order to prevent the sump from overflowing. AMercoid Type A 190 E7810 high-level alarm switch located at10 ft.-3 in., activates an annunciator drop at theannunciator board located in the electrical control room onthe west end of the chemical storage building near the OilyWaste Retention Pond. The alarm switch also activates anannunciator drop in the Unit 3 Control Room.


Lift Station No. 13, located near the north side of theOily Waste Retention Pond, consists of a 7 ft-6 in. x 9 ft.sump, 9 ft. deep, equipped with three pumps mounted in afiberglass building over the sump.Pump "A is a Lawrence Pump Company Model HBD-SM verticallift pump rated at 200 gpm at 75 feet total dynamic head.The pump is driven by a 15 h.p. General Electric motorrated at 1170 rpm, 3 phase, 60 haz, and 460 volts.

Pump. "B" is a Gorman-Rupp Model T6A3-B centrifugal pumprated at 1160 gpm at 75 feet total dynamic head. The pumpis driven by a 15 h.p. Westlnghouse Lift-Line T motor ratedat 1755 rpm, 3 phase, 60 haz, and 230/460 volts.

Pump "C" is an Aurora Pump Company Model 632 vertical liftpump rated at 200 gpm at 75 feet total dynamic head. Thepump is driven by a 15 tup. General Electric motor rated at1760 row, 3 phase, 60 haz, and 460 volts.

Controls for the pumps are by General Electric and arelocated adjacent to the lift station.The pumps are activated automatically by General Electricfloat level switches to keep the level in the sump below 5ft. in order to prevent overflowing of the sump. TheGorman-Rupp pump 1s activated first, followed by the othertwo pumps if needed. A Mercoid Type A 190 E 7810 high-level alarm switch located at 5 ft-6 in., activates anannunciator drop at the annunciator board located in theelectrical control room on the west end of the chemicalstorage building near the Oily Waste Retention Pond. Thealarm switch also activates an annunciator drop in the Unit3 Control Room.

flRQQOQ9 Environmental Protection

NOKTH CAItOLM*

OILY WASTE SYSTEM

5.1.9 Oilv Waste Retention Pond - Facilities (continued

The oil skimmer consists of a portable pneumatic pump and alength of flexible 3- inch hose with one end attached to asection of metal screen. With the mouth of the hosepositioned at the surface of the pond, waste oil isskimmed-off by the pump and delivered to the oil recoverytank while floating debris is retained on the screensurrounding the end of the hose.The Waste Oil Recovery Tank located near the northeastcomer of the Oily Waste Retention Pond is a 10,365 gallontank surrounded by an earthen dike. A 4-1nch drain linenear the bottom of the tank is routed back into the OilyWaste Retention Pond. Waste oil is delivered to the heavyoil tank for reuse in the Unit 3 boiler by a Blackmer ModelMLX4 vertical lift pump mounted on a small sump inside thediked area adjacent to the tank. The pump is rated at 230gpm and is driven by a 15 h.p. Blackaer motor rated at 1750rpm, 3 phase, 60 hz, and 230/460 volts.


5.2.1 01 Iv Waste LI ft Stations - Operation

The pumps at lift stations i, 2, 4, 5, 6, and 1 whichcollect and deliver oily wastes to the Oily Waste RetentionPond operate automatically by means of float level switchesto prevent water from overflowing the sumps or backing-tipthe drain lines that enter the sumps. The pumps at LiftStation 13, which handle Oily Waste Retention Pondeffluent, are also operated automatically by float levelswitches to prevent water fro* overflowing the sumps.If oily waste overflows a sump or drain line, the oilshould be contained and cleaned-up according to theprocedures discussed in the Spill Prevention Control andCounter-measure Plan (SPCC Plan) in Volume 2, Section 15.The SPCC Plan also contains procedures for cleaning up oilretained in the ash settling ponds or the Discharge Canal,as well as the containment, clean-up, and reportingprocedures to be followed if oil reaches the York River.

AH000096 Environmental Protection Manual12/18/91 Yorktown ¥01 taw 2

OILY WASTE SYSTEM

• HI HHBHHM

PAGE 5-11

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DEMINERALIZER WASTEWATER SYSTEM

PAGE 6-1

6.0 OEHINERALIZER WASTEWATER SYSTEM

The demineralizer removes Impurities from city water andcontaminated condensate before use as makeup water to the boilers,thus minimizing mineral buildup in the boiler tubes.Demineralizer waste 1s pumped to the Ash Ponds by lift stationsNo. 8 and No. 11 and is thus a component of VPOES Discharge Number101 (Ash Pond effluent).


Demineralizer facilities for Units 1 and 2 are located in ademineralizer house north of Unit 1. The Unit 1 and 2demineralizer building floor drains and regeneration waste drainsare collected by Lift Station No. 11 which is located beneath ashed south of the demineralizer building. ;The Unit 3 denineralizer equipment is located in a demineralizerhouse northeast of Unit 3. The Unit 3 demineralizer buildingfloor drains, regeneration waste drains, and acid and caustic tankdrains are collected by Lift Station No. 8 which is locatedbeneath the demineralizer building.Lift stations No. 8 and No. 11 pump demineralizer wastewater tothe ash ponds.6.1.1 Unft 1. 2. and 3 Deaineralizars - Facilities

The Unit 1 and 2 demineralizer house contains ademineralizer train for each unit which consists of acarbon filter to remove chlorine and suspended solids, acation-exchange vessel for removal of cationic minerals, avacuum deaerator for removal of gases, and an an ion-exchange vessel for removal of anionic minerals.The cation and anion beds are regenerated by addition ofsulfuric acid (H SOJ and sodium hydroxide (NaOH),respectively, which are stored in 10,000 gallon steeltanks outside the east wall of the demineralizer house.Each of the two tanks is located over a concrete pad witha 2-foot high concrete dike. The dike is equipped with avalved drain for removing rainwater. Smaller acid andcaustic day tanks are located inside the demineralizerhouse. Controls for the demineralizer trains are alsolocated in the deainertlizer house.

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PAGE 6-3

6.1.2 Lift Station Number 8 - Facilities (continued^

controls for the pumps are located on a panel adjacent tothe pumps.

The pumps are activated automatically by level switches tokeep the level in the pump pit below the Inverts of theinlet lines from floor drains in areas of thedemineralizer building not located directly over the sump.These include the acid and caustic storage tank and daytank areas, the cation, anion, and mixed bed reactor tanksareas, and the degasifier tank area. The Gorman-Rupp pumpis activated first, followed by the other two pumps ifneeded. A level switch activates a local audible alarm inthe demineralizer building to warn of a high level in thesump.The discharge of the three sump pumps is routed to the AshPonds by means of a 10-inch fiberglass line which alsocollects the discharge from Lift Station No. 11 at theUnit 1 and Z demineralizer building.


Lift Station No. 11, located just south of the Unit 1 and2 demineralizer building, is a 9 ft.-6 in. square sump, 10ft. deep, equipped with two centrifugal pumps enclosed ina small fiberglass building. The pumps deliver Unit 1 and2 demineralizer wastewater and add and caustic tanksdrains to the Ash Ponds. Waste from demineralizerregeneration drains Into a 17 ft. square x 10 ft. deepsump (20,000 gallon capacity) adjacent to the southeastcomer of the demineralizer building. This sump isconnected to the smaller sump of Lift Station No. 11 bymeans of a 16-Inch concrete culvert between the two sumpsat floor level. Floor drains from the demineralizerbuilding drain directly to the smaller sump through an 8-inch pipe.Lift Station No. 11 1s equipped with two Goulds Model 3796centrifugal pumps rated at 85 gpm at 120 feet totaldynamic head. Each pump is driven by a 15 h.p. U.S.Electric motor rated at 350 rpm, 3 phase, 60 hz, and230/460 volts. Square D controls for the pumps arelocated on the Inside wall of the 11ft station building.

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, • . _ PAGE 6-5

6.2.1 Unit 1. 2. and 3 Demineralizers - Operation (continued^

Total regeneration wastes, including backwash water andsolutions of sulfuric acid and caustic soda, typicallyamount to .0284 mgd for Units 1 and 2 and .0777 mgd forUnit 3.

6.2.2 Lift Stations Number 8 and 11 - OperationThe pumps at Lift Stations No. 8 and No. 11 operateautomatically by means of float level switches to preventwater from overflowing the sumps. If such an overflowoccurs and the sump contents reach a surface drainagecatch basin, then the overflow will be routed to the YorkRiver via the Intake Canal or the Discharge Canal.Overflows from Lift Station No. 8 to the catch basins inthe Unit 3 area will drain to the Intake Canal. Overflowsfrom Lift Station No. 11 to catch basins in the Unit 1 and2 area will drain to the Discharge Canal. Demineralizerwastewater reaching the river In this manner withoutpassing through the Ash Ponds constitutes an VPDES permitexception and must be reported to the appropriateregulatory agencies as discussed in Volume 1, Section 6.0of this manual.

AHUUU i (JO environmental Protection Manual12/18/91 - Yorktown VolumVZ

NORTH CA/tOUNA TOWff/T

HETALS CLEANING WASTES TREATMENTFACILITIES

PAGE 8-1

8.0 METALS CLEANING WASTES TREATMENT FACILITIES

Acid cleaning of the boilers and washing of the preheaters andelectrostatic precipitators produce an acid waste water with ahigh metals content. This wastewater is treated at the metalcleaning wastes treatment facilities where lime slurry 1s added toraise the pH so that iron and copper will precipitate. Thetreated waste water {VPDES Discharge Number 102) is released tothe discharge canal.


The facilities consists of:

two valves for directing flow to the metal* cleaningwastes basintwo lime slurry tanks with mixersone lime slurry pumpdual mixing basinssettling basindrainage sump with a recirculation pump

Metal cleaning, wastes are directed by valves at the ash ponds to33 the treatment facility where the waste water enters the dualCD mixing basins. Lime slurry is pumped from the two slurry tanksCD into the nflxing basins where 1t is mixed with the metal cleaning€2 waste water to raise the pH to at least above 2.0. The

slurry/waste mixture then flows into the settling basin and may beCD , reclrculated between the settling and mixing basins by the

recirculation pump. Generally, the wastewater is adjusted to a pHgreater than 8.0 and less than 10.0 in order to form iron andcopper hydroxides, which will precipitate out of solution. A flowdiagram of the metal cleaning waste system is shown in Figure 8.1.

8.1.1 Valvino - Facilities

Boiler and preheater washes drain into lift station No.9 which normally pumps through a 10-inch fiberglass lineto the ash ponds. During a boiler or preheater wash,however, discharge from 11ft station Na. 9 is directedto the metal cleaning wastes treatment facility by twomanually operated 10-inch butterfly valves located justwest of the south ash pond. One valve is located on the10-inch fiberglass line which branches off towards the

Environmental Protectionn w i i i i i * i it i22/27/91

HOKTH CAKOUNA POWCfi

METALS CLEANING WASTES TREATMENTFACILITIES

PAGE 8-3

8.1.3 Lime Slurry Feed System - Facilities (continued^

operated by an Ingersol-Rand Type 30 Model T302LTM aircompressor rated at 7.4 cfm actual delivery at 100 psigdischarge pressure. The air compressor motor is a 2h.p. Ingersol-Rand motor rated at 885 rpm, 3 phase, 60Hz, and 230/460 volts.

The lime slurry feed rate 1s determined by stationlaboratory personnel based on the pH of the wastewaterin the dual mixing basins.

8.1.4 Mixing Basins - Facilities

The pH of the acid wastewater is raised by adding thelime slurry in the dual mixing basins. A 10 ft. x 20ft. x 10 ft. deep concrete tank is divided by a concretewall into two 10 ft. x 10 ft, mixing basins operated inseries. The first mixing basin discharges into thesecond, and the second mixing basin discharges into thesettling basin (see Vepco drawing Y-VPDES-77-C7).

Mixing is accomplished by a Philadelphia Mixer CompanyModel MT-02-PTO mixer in each of the two basins. Eachmixer has a stainless steel shaft which is 8 ft. -4 in.long and 2 inches in diameter. Each shaft is fittedwith a 4-blade pitched impeller, also of stainlesssteel. Each Impeller blade is 35 inches long and 6inches wide. The mixers are rated at 1750 rpm input and84 rpm output. Each mixer is driven by an Allis-Chalmers Type RGZ-CH induction motor rated at 5 h.p.,1740 rpm, 3 phase, 60 Hz, and 230/460 volts.

8.1.5 Settling Basin - Facilities

The settling basin is designed to hold 3,000,000 gallonsof wastewater. The triangle-shaped basin covers an areaof almost one and one-half acres. The basin isapproximately 10 feet deep and slopes toward a centerdepth of 11 feet. The basin is lined with a syntheticliner to prevent wastewater from reaching thegroundwater.

U £ Environmental Protection12/17/91 Yorktown Volume 2

MORTHCAftOUHA POWER

-; :ALHETALS CLEANING WASTES TREATMENTFACILITIES

PAGE 8-5

8.2 Description of Operations (continued)

- Following a boiler or preheater wash, the equipment should becleaned and any problems corrected. Upon the completion of theneutralization and precipitation process, the wastewater can be

—drained from the settling basin so that the facilities will beready for the next cleaning. The basin discharge procedures inSection 8.2.5 of this manual should always be followed whendraining the settling basin.

8.2.1 Preparation for Use of Facilities

The final step for the previous use of the facil1ti.esshould have been to flush out the lime slurry system andcorrect any problems. However, to insure that thesystem will be operational for an upcoming acid wash,the equipment should be inspected again.

The pre-wash equipment inspection should Include anoperational check of the slurry tank agitators, theslurry feed pump, the air compressor and pneumaticvalves which control slurry recirculation, the mixingtank?agitators, and the recirculation pump.The settling basin should be checked to insure that ithas been drained prior to a boiler or preheater wash to

-provide at least 4 to 5 feet of freeboard in the basinfor containing the acid waste. If two preheater washesare to be performed consecutively the basin should bedrained prior to the washes to provide adequate basincapacity.Both the acid drain and the first water rinse of aboiler acid wash require treatment to raise the pH andlower the metals content. The amount of lime needed toeffectively treat the acid drain and the first rinse isindicated on Figure 8.2 and depends on the volume of theboiler being washed. Table S.I shows the amountsnecessary to treat both the acid drain and the firstrinse for Yorktown Units 1-3 based on Figure 8.2.

Several factors affect the amount of lime required toneutralize air preheater washwater, including preheatersize, fuel type (coal or oil), frequency of washes(i.e., how dirty the preheater.is), and use of additivessuch as penetone.

Environmental Protection Manua-, , • 1 iJ t i l l I II. 1

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PAGE 8-7

8.2.2 Valve Operating Description (continuedV

The valve which controls discharge to the dischargecanal at the metal cleaning wastes settling basindrainage sump should be checked to insure that it isclosed to prevent discharge of insufficiently treatedwastewater. The three inlet valves which control flowfrom the settling basin into the drainage sump shouldalso be closed to prevent metals sludge in the basinfrom being carried into the drainage sump.

8.2.3 Boiler and Preheater Acid Drain - Operations

The metal cleaning wastes from % boiler acid:washnormally consists of five consecutive boiler drainsrequiring treatment:

acid solution drainwater rinse draincitric acid solution drainalkaline solution post-boil drainpost-boil water rinse drain

Metal cleaning waste from an air preheater wash normallyconsists of one acid waste drain for each side of thepreheater. Controlled washing of the preheaters isaccomplished using high pressure water. The sulfurdeposits that collect on the preheaters lower the pH ofthe washwater as It passes through the preheaters.Lime slurry should be pumped to the mixing basinssimultaneously with the boiler or preheater washwaterdrain. The mixing basin mixers should be turned on justbefore starting the slurry pump. The amount of limeslurry added to the waste drain is determined by labpersonnel.The pH of the slurry/waste mixture discharged into thesettling basin must be at least above 2.0 to complywith RCRA (Resource Conservation and Recovery Act)regulations. The upper pH limit for RCRA compliance is12.5.

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PAGE 8-9

8.2.4 Recirculation - Operations (continued)

Recirculation is employed to ensure a pH greater than8.0 In the settling basin for precipitation of iron andcopper prior to draining the wastewater to the dischargecanal. In no case should the pH be raised above 12.5,which would classify It as a hazardous waste under RCRAregulations. The wastewater should be recirculated for

=-^_at least 3 hours after.the lime feed is finished toobtain a steady value of 8.5-9.5 on the pH monitors inthe lime facility control room. The mixing basin mixersshould remain in operation throughout the lime feedingand the recirculation process.

8,2.5 Settling Basin Discharge - Operations

The metal cleaning wastes should be retained in thesettling basin for at least 24 hours followingrecirculation before draining the basin to the YorkRiver via the discharge canal. This is the minimumamount of time necessary for iron and copper toadequately precipitate out of solution. However, thewastewater may be retained in the settling basin until afew days before the next boiler or prehreater wash inq,rder to allow the maximum length of time possible forprecipitation of the metals.Prior to discharge a grab sample from the basin shouldbe taken for a preliminary check of iron and coppercontent by the station laboratory. If the iron andcopper content is found to be within the VPDES permitlimit of 1.0 mg/1, the settling basin is discharged bygravity to the discharge canal.The treated wastewater discharge to the discharge canalis started by opening the top inlet valve on thedrainage sump and the valve on the discharge line fromthe drainage sump. The middle and lower inlet valves tothe drainage sump can be opened as the basin leveldrops, if this can be done without drawing solids offthe bottom of the basin.Only one drainage sump inlet valve should be opened atany time. This will prevent draining the basin toorapidly which could resuspend the metals that have

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> MOATHCAJtOUNA

METALS" CLEANING WASTES TREATMENTFACILITIES

PAGE 8-11

8.2.6 Sludge Removal and Disposal

In time, the metal cleaning wastes basin will fill-upwith lime and metals sludge to the point where thecapacity of the basin is not sufficient to contain therequired volume of waste water from a boiler acid washor preheater wash. Prior to reaching that point, itwill become necessary to remove the sludge and disposeof it in an approved landfill.

Any sludge removal project should be coordinated withthe Water Quality Department to insure proper disposalof the sludge and cost-effective methods of sludgeremoval.

Environmental Protection Manua>12/17/91 Yorktown Volume2 AROOOI06

MOUTH CAJtOUKA TOWCT


PAGE 8-12

1 ———UFT STATION NO. 9

AftiMND

FIGURE 8.1YQRKTOWN POWER STATION

METAL CLEANING WASTES TSEATNDCT SYSTEIt FlOU OIASIUliEnvironmental Protection Wa

12/17/91 twct-iw-t RR00010

powrrtMOXTH CAAOLMA FOWtn

32

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PAGE 8-13

Hot**: O 7IS CaO content of Live assuoed2) Curve based on iOOZ hydration of list* CaO + H20 iOOZ-»Ca (OH)23) Factors are: 6Z - .3020 Tons/1000 gals.

4Z - .2013 Tons/1000 gals.

ex :i

10 20 30 40 50 60 70 80 90 10(

BOILER VOLUME (THOUSAND GALLONS)


LIME REQUIRED TO RAISE pH OF ACID WASH WASTEWATER TO 9.0Environmental Protection

:town Voluat 2 AHQOOIQ8

ratCMUPOWE*i*ot*or

—'G1HALHETALS CLEANING WASTES TREATMENT ^FACILITIES * 3

PAGE 8*14

5 6 7 8 9 10 U 12 13 14 15 16AIR PREHEATE1 WASHHATEE, MXU.XORS OP CALLOUS


LIME REQUIRED FOR NEUTRALIZATION OF AIR PREHEATES WASHWATER

Environmental Protection Manual12/17/91 Yorfctow) Volume 2

PAGE 8-15

O.I 0.2 0.3 O.4 0.5 0.6 0.7 0.8 0.9 1.0 1.1 l.Z l.J1.4 1.5 1.6 1.7 1.8 T.<

AIR PREHEATER ttASHHATER. MILLIOHf OP CALLOUS

FIGURE 8.4YORKTOWN POWER'STATION

LIME REQUIRED FOR NEUTRALIZATION OF AIR PREHEATER WASHWATER_________________FOR OIL-FIRED BOILERS

Environmental Protection12/17/91 Yorktown Volume 2 A ROOD I I 0

VWI3MK4 POWERHOfiTH CAOCLJHA POWfff


PAGE 8-16

YORKTOWN BOILER ACIB WASHES

Unit Boiler VolumeTons of Lime (911% CaO) Required(1000 Gals.) To treat Acid Drain and First Water Rinse"

__ _________ 6X HC1 4* HC1

1 27.0 8.5 " 5.52 27.0 8.5 5.53 95.7 29.0 19.5

"Taken from Figure 8.2-1

TABLE 8.1LIME REQUIRED TO NEUTRALIZE ACID WASHWATER

Environmental Protection Manual12/27/SI Yorktown Volume 2 &RQQQ 1 ( I

NOKTH CAKQUHA POWER


PAGE 8-17

YORKTOWN TYPICAL AIR PREHEATER WASH DATA

Uni t Si ze Fuel Washwater Durati on Volume(MW)Flow Rate Of Wash Washwater

__ __ __ faonrt (hrs. f gal .1

1 166 Coal 210 12" 150,0002 170 Coal 210 12" 150,000 »3 818 Oil 720 12" 500,000

"These are normal wash durations but sometimes % 24 or 36 hour was isrequired.

TABLE 8.2LIME REQUIRED TO NEUTRALIZE AIR PREHEATER WASHWATER_____

Environmental Protection Manua112/17/91 Yorktown Volume 2 A ROOD I i 2

HKOJNU POWERNCXTH CAROUHA POWfK

ASH DISPOSAL SYSTEM•mmmml

PAGE 9-1

9.0 ASH DISPOSAL SYSTEM

Units 1 and 2 at Vorktown Power Station were converted, 1n 1984and 1985 respectively, from oil to coal as a primary fuel. Theash disposal system collects flyash in the electrostaticprecipitator hoppers and bottom ash in hoppers directly beneaththe furnaces. Flyash is transferred to the flyash silo on thewest end of the station. Bottom ash is transferred to thehydrobins adjacent to the silo.The ash Is then loaded into trucks and taken to the ash structuralfill site, located approximately two miles south of the station,The ash is compacted in a mono-fill. The leachate is collected Inan underground tank and the surface runoff is routed to a seriesof sediment ponds.


9.1.1 Ash Fill ~ Facilities

The current scheme of the ash fill consists of thirteenIndividual cells to be constructed individually, 1n order,beginning with cell no. 1.

Each £€l] will consist of a 6-inch clay liner covered by a2-foot thick drainage layer of bottom ash. The clay linerand bottom ash blanket are sloped at 0.4 per cent to thecenter of the site in order to drain leachate to thecollection pipe. The bottom ash layer separates the clayliner from the flyash and provides i drainage path for theleachate. Natural soil dikes are constructed along theperimeter of the cell to contain leachate at the toe ofthe ash embankment.The flyash 1s placed atop the bottom ash blanket in liftsto an average height of 25 feet with side slopes of 3 to1, When the fill reaches maximum height, the cell is"closed* by placing a 2-foot soil cover atop the ash. Thesoil cover Is needed to establish vegetation for erosioncontrol and is sloped to direct drainage away from thefill.The area of the ash fill 1s approximately 48 acres.

Environmental Protection Manua!12/17/91 Yorktown Volume 2 ftROOD 113

ASH DISPOSAL SYSTEM

•••PAGE 9-3

9.2.1 Ash Fill - Operations (continued!

When a cell reaches maximum height, a 2-foot soil cover isplaced over the flyash. The cover is graded and seeded.The next cell is then used for ash disposal.

9.2.2 Leachate Collection System - Operation

Periodically, station personnel check the leachate levelin the tank and transfer the leachate to the MetalCleaning Wastes Pond.

9.2.3 Sedimentation Ponds - Operation

Surface runoff from the ash fill site is diverted to thesedimentation ponds. Runoff from the active cell isrouted to the center pond. Runoff from the closed cellsand undeveloped portion of the site is routed to thenorthwest and southeast ponds. The center pond decantsinto the northwest and southeast ponds.

The northwest and southeast sedimentation ponds eachdischarge over a v-notch weir set in the spillway of eachpond. The two ponds discharge as VPDES Outfalls 003 and004, respectively. Flow is measured by reading the depthof water above the weir notch using the staff gage at eachpond and using Table 9.1. There is no permit limit onflow; however, a flow value must be reported on themonthly Discharge Monitoring Report (DMR).Outfalls 003 and 004 are also sampled monthly for totalsuspended solids (TSS), oil and grease, total phosphorus,and total nitrogen. The VPDES permit limits are:Parameter Monthly.Ave. fmo/11 Daily Hax. fmg/11TSS 30 100Oil I Grease 15 20Total Phosphorus 2 NATotal Nitrogen No Limit NANote that, although there is no permit limit for nitrogen,the monthly average for nitrogen must be reported on theDMR.

Environmental Protection Manual12/17/91 Yorktown Volume

VWGVMA POWERMORTH CAROUNA POWCft

ASH DISPOSAL SYSTEM^

PAGE 9-4

Vorktown Ash Disposal FacilitySettling Pond WeirsConversion Table

H Q Q(ft» (cfs) (gpm)

0.1 0.008 3.540.2 0.045 20.050,3 0.123 55.260,4 0.253 113.440.5 0.442 198,170.6 0.697 312.600.7 1.025 459.570.8 1.431 •• 641.700.9 1.921 861.411.0 2.500 1121.001,1 3.173 1422.611.2 3.944 1768.311.3 . 4.817 2160.051.4 5.798 2599.711.5 6.889 3089.11

Based on formula; Q in cfs - C Hs/2 for a 90* notch

Where: H - depth of water, in feet, above apex of V-notch weirC - weir coefficient -2.5Q - Flow

TABLE 9.1FLOW CONVERSION TABLE

YORKTQWN ASH SITE SEDIMENTATION PONDSEnvironmental Protection

12/17/9! Yorktov*, Vo1«e 2 RRQOOU5

Section A.4.Written authorization dated June 14, 1988 to sign DischargeMonitoring,Reports has been issued by Virginia Power management tothe following positions at Yorktown Power Station:

Station ManagerSuperintendent of OperationsSuperintendent of Technical ServicesEnvironmental Compliance Coordinator

As of July S, 1992, these respective positions were held byfollowing employees:

L. K. Newsom© 898-2532D. W. Faison 898-2533P. W. Deal 898-2534W. D. Rainey, Jr. 898-2555

The address for all of the above individuals is Yorktown PowerStation, State Route 631, P. O. Box 371, Yorktown, Virginia 23690.

AROOOI 16

4. If an outside firm removed any of the above checked wastes, state thename{s) and addr«««(•«} of all waste haulers:

, Inc. b._Chesapeake. VA

_ (Ea.z, waste & £nat. plant sludge) (Parts yaahing solvent

Permit So. _ _ EPA ID No, Permit No. FPA ID5?346

5. Have you been issued any Federal, State, or local environmental permits?

C K] YI 1 »If yes,Paclcag*StatTQT

-

O

please list the pennit(sli NPDES Permit> Eoller Permit Yr»-rV CounCv Conditional Use Permit R§2-2?Jiar5?L Source Permit #60137 Solid Waste Management Permit #457— — ... -fLIMB Svstem^J Statlonarv Source Permit #60137

_ . _ __SECTIOK X - AUTHORIIEO SIGHATURZS

Complianc* certifications

(R2)57

(Boiler Cleaning Waste Disposal)*

1. Ar» all applicabl* F«d«r»l, stat*, or local pr«tr«atm«nt standards andr»cjuir«n«nt« bair.g awt on a con»i»t«nt basis?

?*• ( X] No [ ] No y«t discharging C ]

2- If Net

a. What additional operations and maintenance procedures are beingconsidered to bring the facility into compliance? Also, listadditional treatment technology or practice being considered inorder to bring the facility into compliance.

b. Provide a schedule for bringing the facility into compliance.Specify major events planned along with reasonable completion dates.Note that if the Control Authority issues a permit to the applicant,it may establish a schedule for compliance different from the onesubmitted by the facility.

___ Kilestone_Aetivitv ___ _____ Completion Date ______

20

f l R O O O l 1 7

KCTIO* X - SPILL PWVBHTIO*

1. Do you have chemical storage containers, bins, or ponds at your facility?t X] r., I , HO Se attached S F C C F l a n . l c l ora c o n t r , bins,If y«, pi.,,.and frequency and method of cleaning. Also indicate in a diagram orcomment on the proximity of these containers to a sewer or storm drain.Indicate if buried metal containers have cathodic protection.

2. Do you have floor drains in your manufacturing or chemical storagearea(s)? [X ] Yes [ ] Ho If yes, where do they discharge to? NPDES Systetf(Drains are shown on 27 separate drawings. Drawings can be provided upon '-eauest

3. If you have chemical storage containers, bins, or ponds in manufacturingarea, could an accidental spill lead to a discharge tot (check all that*FPly > *[ X] an onslte disposal system (NPDES)E } public sanitary sewer system (e.g. through a floor drain)[ ] storm drain£ X] to ground[ X] other, specify t tank containments£ ] not applicable, no possible discharge to any of the above routes

4. Do you have an accidental spill prevention plan (ASPP) to prevent spillsof chemicals or slug discharges from entering the Control. Authority'scollection systems?

[ X] Yes - [Please enclose a copy with the application] SPCC PlanC J **o[ ] N/A, Not applicable since there are no floor drains and/or the

facility discharge(s) only domestic wastes.

Please describe below any previous spill events and remedial measurestaken to prevent their reoccurrence.

See attached SPCC Plan.•"

SECTIOK J - MOX-0IICHAHOED WA»TM

1. Are any waste liquids or sludges generated and not disposed of in thesanitary sewer system? •

[ X] Yes, please describe below[ l Ifo, skip the remainder of Section J.Waste Generated Quantity fper vsarl Disposal Method

Ash ________ - 62,268 tons C1992 eat.l On-a-H-P tanrff-m _______Wastes I.IQQ Ibs (19911 OFf-sii-P' vpnHnr fT.aiHIa^ frn-u-

Plant Sludge 4.400 Iba (19911 nff-c-fl-g Tremor n.xiJIxrj WrrvMPPES Wastevater N/A __________ _^ On-slte treatment facilitiesParts ffasMng Solvent 500 Ibs (1991) Off-site recycler

2. Indicate which wastes identified above are disposed of at an off-sitetreatment facility and which are disposed of on- site.

3. If any of your wastes are sent to an off-site centralized waste treatmentfacility, identify the waste and the facility.Hazardous wastes & treatment plant sludges are sent to Laidlaw Environmental SvcInc.fs Reidville, NC facility for disposal. Parts Washing Solvents are sentto Safety-Kleen's Chesapeake, VAlf facility for recycling.

AROOOi18

3. indicate whether the facility discharge isi

{ X] Continuous through the year, or( j Seasonal - Circle the months of the year during which the business

activity occurst

J ' P M A H J J A S O H D

Comment s s

4. Does operation shut down for vacation, maintenance, or other reasons?

£ 3 Yes, indicate reasons and period when shutdown occurs;

CX 1 So : ^

5. List types and amounts (mass or volume per day) of raw materials used orplanned for use (attach list if needed}tCoal - 459,850 Eouiv. tonsNo, 6 Oil -Reflnerv Gas

1.873.802 Barrels— 2.S36 Eauiv. Tnns

Natural Oss — 1ft, 577 Kqniw. TnrssT.ipht Oil — li,^7i Ra-ri-olw

..

6. List types and quantity of chemicals used or planned for use (attach listif needed) which may be discharged to the sanitary sewer system. Copiesof Manufacturer's Safety Data Sheets for all chemicals must be availableto the District.

Chemical QuantitySee attached list.

7. Building Layout - Draw to scale the location of each building on thepremises. Show map orientation and location of all water meters, stormdrains, numbered unit processes (from schematic flow diagram)« publicsewer** and each facility discharge line including floor drain* connectedto the public sewers. Number each sewer and show existing and proposedsampling location*.

A blueprint or drawing of the facilities showing the above items may beattached in lieu of submitting a drawing on this sheet, however, markingsas required above suet be shown.

See attached drawings numbers 5458 0 206 717-004 entitled "Site DrainageStudy". Map orientation and storm drains are shown for the power station.Water meter locations are not available. Unit Process 1 shown on schematicflow diagram is described in the attached "Environmental Protection Manual,Volume 2, Yorktown Power. Station," Section 2.0." The attached site planidentifies the Administration Facility which is the source of sanitarysewage flows at the power station. No sampling locations currently existat Lift Station Ho. 3. Sampling i» location and other requested informationis shown on Drawing No. 92-154-Ei for the Chisman Creek site (Unit Process 2)

AROOOH9

6. Describe any changes in treatment or disposal methods planned or underconstruction for the wastewater discharge to the sanitary sewer. Plsaseinclude- estimated completion dates.Virginia Power is planning to install 280 gpm horizontal sewage pumps atLift Station No. 3 and replace the fa inch sewage line witn an a inchTine. ./•.Completion datel7ls dependent upon regulatory approvals. _~~~

7. Do you have a treatment operator? [X ] Yes £ ] Ho

(if yes,) Name: Scott Morelan_________________________Title* Chemist

Phone: 898-2571

Full time: 7:30 a.m.-3:30 p.m. (specify hours)

Part time: ________________. (Specify hours)Lic.n..d, [X] y.. TVP.. ifriii'Wr Work3 Operatpr,, >e

i. Do you have a manual on the correct operation of your treatment equipment?

[ X1 Yes E 1 No

9. Do you have a written maintenance schedule for your treatment equipment?

E X ] Yes C J So

SECTIOK I - FACILITY OPIRATIOHAL CSARACTIKIffTIC*;

1. Shift Information

Work Days t x I E X 1 E X J E X J tX) [X] [XJHon. Tues. Wed. Thur* Fri. Sat. Sun.

Shiftsper work T : . „day: 3 3 3 3. 3 J • 3 -

l«t 186^ 195 195 195 186 54 54Enrol * sper 2nd 29 29 29 29 23-. - -21 21shifts . ,

3rd 12 12 12 12 12 12 12

Shift 1st 7/3 7/3 • .7/3 -7/3 7/3 7/3 7/3startand 2nd 3/11 3/11 3/11 _ 3/11 3/11 3/11 3/11tamest 3rd U/7 11/7 11/7 11/7 11/7 11/7 11/7

2. Indicate) whether the business activity isi

[ X] Continuous through the year, or[ ] Seasonal - Circle the months of the year during which the business

activity occurs:j r H A H J J A S O N O

Comment s: __________________________——————.—————————————

17

AROOOI20

SECTIOW 9 - SXZAXXZHT

1. Is any form of wastewater treatment fsee list below) practiced at thisfacility?

{ X] -Sfe* See attached Environmental Protection Manual, Section 1.0-9.0£ 3 »»

2. Is any form of wastewater treatment (or changes to a existing wastewatartreatment) planned for this facility within the next three ysar«?

f X 3 Yes, describes Propose to rant* Ch-fgman Hrgglf Tjjssf A&rafgy *"<-fl______£ 1 No system.

Treatment device or processes used or proposed for treatment wastewatar orsludge (check as many as appropriate).

C 3 Air flotation| ] Carbon Adsorption[ j chemical precipitationf ] Chlorination£ j CcmrninutorI 3 CycloneC J Filtration, type* ____________________________________[ 3 Flow equalization[ j Grease or oil separation, type* ________________ ______ •f j Grease trapC J Grinding filter[ j Grit removal[ j ion exchange[ j Neutralization, pB correctionI l Ozonation{ } Rsverse Osmosis{ 3 screent 1 SedimentationC 1 septic tank( j Solvent separation[ J Spill protectionCX ] Sump[ j Biological treatment, type:.{ ] Rainwater diversion or storage{ I Other chemical treatment, type t.( ] other physical treatment, type* .{ } Other, typet _________._____

4. Description

Describe) the pollutant loadings, flow rates, design capacity, physicalsizev and operating procedures of each treatment facility checked above.

»n^al "PrnfAt^f-fnn Manttal Gafr-ifin 9 A__________________

Attach a process flow diagram for each existing treatment system, includeprocess equipment, by-products, by-product disposal method, waste and by-product volumes, and design and operating conditions.

See attached Environmental Protection Manual, Section 2.0

1C

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AROOOI26

SECTION F * CHAXACmtlSTZCS OP DISCHARGE

Ail current industrial users ar* required to submit monitoring data on allpollutants that ar* r*?ulat*d specific to each proc*ss* Us* th* tabl*s providadin this s*ction to r sport th* analytical rssults. DO NOT LEAVE BLANKS. For allothar (nonr*9ulat*d) pollutants, indicat* wh*th*r th* pollutant is known to b*present <P}».- susp*ct*d to b* pr*s*nt (S), or known not to b* pr*s*nt (O), byplacing th* appropriate l*tt*r in th* column for average r«ported values.Indicat* on *ither th* top of *ach tab!*, or on a s*parat* sh**t, if necessary,th* sample location and typ* of analysis us*d. B* sur* methods conform to 40 CFRPart 136/ if th*y do not, indicat* what m*thod was used.

N*w discharg*rs should us* th* table to indicate what pollutants will b* presentor ar* susp*ct*d to b* present in proposed wast*str*ams by placing a p (expectedto b* preient), S (may b* present), or O (will not b* pr*ssnt) under th* averagereported values.

NOTE: Analytical data on the following table was obtained from the ChismanCreek Wastewater System. Analyses have not been performed on thePower Station sanitary flow. All analyses conform to 40 CFR Part 136methods, , .

Mass values based upon flow of 13.2 gpa.

10

12. Briefly describe recovery process, substance recovered, percent recovered,and th* concentration in the spent solution. Submit a flow diagram foreach processi (Attach additional sheets if needed.)N/A____________________________________ _________

AROOOI28

N/A 7, Tor Categorical Users Subject To Total Toxic Organic (TTO) Requirements!

Provid* th* following (TTO) information,

a. Does (or will) this facility us* any of th* toxic organics that-. **» listed under the TTO standard of the applicabl* categoricalpretreatment standards published by SPA?

[ 1 *«*I 3 Ho

b. Has a baseline monitoring report (BKR) been submitt*d which containsTTO information?

E j y««t I Ho

e. Has a toxic organics management plan (TOMP) been developed?

C J YesC 3 Ho

3* Do you have, or plan to hav*, automatic sampling equipment or continuouswastewater flow roe tar ing equipment at this facility?

Currents Flow M«t*ring t XJ *•• I ] Ifo £ '} N^ASampling Equipment { X] yes \ ] NO [ ] $&

Planned: Plow M*t*ring [ X] *«» C 3 »o t J H*Sampling Equipro*nt [ X] Yes [ ] No f } I^X

If so, picas* indicate th* present or future location of this equipment onth* sewer schematic and describe th* equipment below:

Power Statlog*s No. 3 Lift Station - Flow is determined with tmam timersand oump data. A sample tap is installed. See Sectlott_2,Q of attachedEnvironmental Protection Manual*Gblsgan Jlreekj JJastewater Syjste - .Flgg_jgll be t red with andevice. San^yli^g vill b^$ performed at a 6— Inch Palae^—Bowlegs flume.SeeYorktown Power Station has a fully equipped NPDES Laboratory. .

9. Are any process changes or expansions planned during th* next three yearsthat could alter wastewater volumes or characteristics? Considerproduction proc*ss*s as well as air or wat*r pollution treatment processesthat may affect the discharge}*

10,

[ KJ Ho, (skip qu*etion 10) ,

3ri*fly describ* th*** changes and their effects on th* westswaterand characteristics i {Attach additions:! sheets if needed.)

volum*

11, Ar* any materials or water reclamation system* in us* or planned?

C 1( X] No, (skip question

Facilities that checked activities in question 1 of Section 3 are consideredCategorical Industrial Users and should skip to question 6.

5. For Kon-C*t*gorical TJs*rs Onlyi List average wastewater discharge,maximum discharg*, and typ* of discharg* (batch, continuous, or both), foreach plant process. Include the reference number from the processschematic that corresponds to each process. [Hew facilities shouldprovide estimates for each discharge].

Average Maximum Type of DischargeHS*. Process Description Flow fCPD\ Flow fCPOi fbatch, continuoua. nonei

Sanitary Flow_____ 2,400 187,000 _ Continuous Clevel actuateChisman Cr^ek Wastawater 25.QQQ 36.QQQ^ ^Continuous_________ ;

NPDKS DJgrhargPs Q13.000.000 N/A .Continuous

ANSWER QUESTIONS S fi 7 ONLY IF YOU ABC 3UBJKCT TO CATXGORICAL PRETREATMENTSTANDARDS

6. For Categorical User si Provide the wastewater discharge flows for each ofyour processes or proposed processes. Include th* reference number fromthe process schematic that corresponds to each process. [New facilitiesshould provide estimates for each discharge].

Average Maximum Typ* of Discharg*No. Process Description Flow (GPDi Flow fGPD> fbateh. continuous, none

Average) Maximum Type of Discharg*Ko,_ Process Description Flow fCPPl Flow fCPDl rbatch, continuous, nonei

Average) Maximum Typ* of DischargeProees* Description Flow fGPPl Flow fGPOl rbatch, continuous, nonev

AROOOI30

Schematic Flow Diagram - For each major activity in which wastewater is orwill be> generated, draw a diagram of th* flow of materials, products.water, and wastewater from th* start of the activity to its completion,.showing all unit processes, indicat* which process** us* water and whichgenerate wastestreams. Include the average daily volume and maximum dailyvolume of each wastestream (new facilities may estimate). If estimatesar* used for flow data this must b* indicated* Number each, unit processhaving wastewater discharges to th* community sewer. Us* these numberswhen showing this unit processes in th* building layout in Section H.

See attached schematic labeled "8PDES PERMIT FLOW DIAGRAM", Flowvalues shown on schematic represent average daily flow. ChismanCreek Wastewater System not shown on schematic. See attachedDrawing Number 92-154-Ei for actual drawing of existing andproposed Chisman Creek Wastewater System. Schematics and descriptionof each major power station system is provided in the attached"Environmental Protection Manual, Volume 2, Yorktown Power Station, .Section 1.0-9.0''.

AR000131 ______J

<Red)SBCSXOJf B * WAtTZWATM. DISCHARGE INFORMATION

1. Do** (or will) this facility discharg* any wastewater other than fromrestrooms to the City sewer?

[ X 3 yes If the answer to this question is "yes", complete theremainder of the application.

[ ] No If the answer to this question is "no", skip to Section I.

2. Provide the following information on wastewater flow rate.[New facilities may estimate]

a. Hours/Day Discharged (e.g., 3 hours/day)!

M 24 T 24 W 24 TH 24 F 24 Sat 24 Sun 24

b. Hours of Discharg* (e.g., 9 a.m. to 5 p.m.):

M ___ T ___ W ___ TH ___ F ___ Sat ___ Sun ___

c. Peak hourly flow rat* (GPD) 9»300d. Maximum daily flow rat* (GPD) _____232,000____

*. Annual daily average (GPD) ____. 27,400____

f. Describe any seasonal or unusual discharg* variations. _________See below_________________________

3. If batch discharg* occurs or will occur, indicat*:[New facilities may estimate] See Below

a. Number of batch discharges ____N/A______ p*r day.

b. Average discharg* per batch N/A_____ (CPD) Batch

c. Tim* of batch discharg** N/A____. at N/A(days of week) (hours of day)

d. Flow rat* _____N/A _____ gallons/minut*

e. p*rc*nt ef total discharge)

SECTIOK 2. f. Seasonal variations do not occur. Flow to the sanitarysystem may increase during major generating unitmaintenance outages and annual cleaning of the ChismanCreek Wastewater System (to 36,000 GPD).

SECTION 3. Batch discharges occur for certain NPDES systems.Existing and proposed discharges to the sanitary sewersystem are not operated as batch discharges.

AROOOI32

Indicat*Averag* water Estimated (E) orUsag* (CPD) Measured (M)

a. Contact cooling wat*r ____ 0

b. Kon-contact cooling wat*r 0/8,730,000 ____M_

c. Boil*r f**d 54»OOP. ____s_

d. Process 38,026,000 E

*. Sanitary _____ 2,000 H _____

f . Air pollution control 186,000 ____ E _____

g. Contained in product ____ Q ____ ____ = _____

h. Plant and equipment washdown 147,000 ____ E ____ f

i* Irrigation and lawn watering N/A ' ____ - _____

j. Oth*r 855. OQO E _____

k. TOTAL OF A-J 918,000.000 E ______

SECTIOW O - SXHBft IMFOUfAStOJI

1* *. Fcr an existing business:

Is th* building presently connected, to the) public sanitary sewersystem?[X I Y«*t Sanitary sewer account number ______C Not Hav* you appli*d for a sanitary sewer hookup?

I XI *»* t 1 Hob. For a new businesst

(i). Will you b« occupying an existing vacant building (such--as in an industrial park}? [ J Yes [ ] Ho

(ii) . Hav* you applied for a building permit if a new facilitywill b* constructed? t 1 *•» C 1 Ho

(iii). Will you be conn*ct*d to th* public sanitary sewersystem? [ ] r** { j No

2. List six*, d**criptiv*> location, and flow of each facility sewer whichconn*ct» to th* City** s*w*r sy»t*a* (If more, than thr**, attachadditional information en another sh**t).

S*w*r Si gat

6 in./8 in.

Descriptive) Location of SaverConnection or Discharae PointFrom Lift Station #3, approx.TI fin ff( nf ft" Urta ^TvnSp t"t Tigto aoorox* 3540 ft. of 8" line

Averag*Flow fGPPI

2,442

AROOOI33

3. Indicat* applicable) Standard Industrial classification (SIC) for allproc«ss*s (If mor* than on* applies, list in d*sc*nding order of impact onwastewater generation)i

». 4911b. ._____c. _;_____d. ______

4. PRODUCT VOLUME* in megawatt hours/day (MWH/day)

PAST CALENDAR YEAR ESTIMATE THIS CALENDAR YEARPRODUCT Amounts Per Day Amounts Per Day

(Irandname) (Daily Units) (Daily Units)__________ Average Maximum Average Maximum

Electricity (net) 6657 23,142 6790 23.371

SBCTIOX C - HATS* StJFPLT

1. Water Sourcesi (Check as many as ar* applicable)

[X ] Private Well (Chisman Creek horizontal drain system)[ x J Surfac* Watertx 1 Municipal Wat*r Utility (Specify City) t[ ] oth«r (Sp*cify)t

2. Meter Informations

Types of M*ters:See Attachment

3.

4.

S.

NAM on the- wat*r bills See

NaaauStr**ttCity»

Water s*rvic* account nunb*r(

List averag* water usag* on p

Attachment

Statet

Dt See Attachment

remises s

Zipi

(Provide estimates where n*c*ssary)Attachment

Industrial Categories* "-I'

I 1 Aluminum Forming[ ] Asbestos Manufacturing[ I Battery ManufacturingI 1 Can Making{ ] Carbon Black[ j .Coal MiningC J Coil Coatingt J copper Forming{ J 31*ctric and Slectronic Component* Manufacturing[ ] Electroplatingt j F sod lot*t j Fertilizer Manufacturing[ j Foundries (Metal Molding and Casting)[ ] Glass Manufacturing[ 3 Grain Millst 3 Inorganic Chemicals[ ] Iron and Steel[ j Leather Tanning and Finishing{ ] Metal Finishingt ] Non ferrous Metals Forming{ ] Sonf*rrous «*tal* Manufacturing[ ] Organic Chemicals Manufacturing£ ] Paint and Ink Formulatingt 1 Paving and Roofing Manufacturing[ j Pesticides Manufacturingt ] Petroleum Refining{ j Pharmaceutical ''{ 1 Plastic and Synthetic Materials ManufacturingE j Plastics Processing Manufacturing[ 1 Porcelain EnaznelC J Pulp, P»per, and Fiber board ManufacturingC J Rubberi ] soap and Detergent Manufacturing[ Xl Steam Electric[ J Sugar ProcessingC ] Textile Hill*I } Timber Products

A facility with processes inclusive in th«s* business areas say b* coveredby Environmental- Protection Agency's (IP A) categorical pr*treatmentstandards. Thes* facilities ar* termed "categorical users*.

2. Give a brief description of all operations at this facility includingprimary products or services (attach additional sheets if necessary):lorktovn Pover Station Is a atea * frTeetrlt^ en&rai--f^n a* a firm. Tj-ih ar>

iio ftta HlifiP gg at* .. aa om. Thi»Creek, yagtevagey gygi-gm i<^ n atJiiiorf- far-il-tt-y "jf_yf*yfeCfltfp_ Pntjgt-rand eanft±at3._af hofi.zonal drain

Yrtrfe

CEXSiriCASIOM XZQBIXBMZMT

To b* signed by authorized industry representative and submitted with selfmonitoring data.

I certify under penalty of law that I have personally examined and am familiarwith the information submitted in this document and all attachments and thatbased on my inquiry of those individuals immediately responsible for obtainingthe information I believ* th* submitted information is true, accurate andcomplete. I am aware that there are significant penalties for submitting falseinformation, including the possibility of fine and imprisonment, see 180.S.C. &1001 and 33 U.S.C. & 1319 (Penalties under these statues may include fines to$10,000 and/or maximum imprisonment of between six (6) months and five (S) years.

B. M. Marshall Manager, Water QualityKame(s) Title

Signature *7 Dat* Phoni

21

RRQOOI36

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section c.2, 3, 4, & 5

Meter Mater Account Average WaterSize flnmhft-r Number Usage

3 inch RR1190930 60384426704 9,994 HCF 12 inch N30015815 62981126501 196 HCF 18 inch RR1190993 60384426602 12,255 HCF 16 inch RR115556S 60381120903 64 HCF 11 inch N32446607 64878881906 27 HCF 25/8 inch 999999999 60181121108 0 HCF 1

1. Name on the water bill: Virginia Electric and Power CompanyStation AccountingP. O, Box 571Yorktown, VA 23690

2. Name on the water bill: Virginia Electric and Power CompanyAttn: Project AccountantP. O. Box 1155Grafton, VA 23692

Note: Average water usage is based upon 12 month customer historyprovided by Newport News Waterworks.

AROOOIlfO

ASPEKDIX ACONTAINMENT OF OIL OS WATER

AROOOIUI

J.- . -

C A - CONTAINMENT OF OIL ON WATER

A. BOOKS

Boom designs are generally of the basic types shown in figure 1."Curtain" booms are appropriate on slov moving vaters or narrovvatervays vhereas the "light fence" type of boom, vhich is strongerand has deeper skirts, is preferred vhere vide vatervays are associa-ted vith vater currents above about 0.5 wph. The "heaw fence" typeboom is generally used in very large rivers and on coastal vaters,and is not usuallv readily available.

•Much, of the text and figure* are adapted from the "Inland Oil Spills"booklet prepared by Region VII * SPA, Ka nsas City, Mo.

CURTAIN BOOM

OJIT4M «AILAST WCIOMTV CAII.C 0$ CMAIH

UGHT TtNCE BOOM

IAU.MTee

,^

VtftttCAL MMCL WAT |fPlAITlC.

M

FIGURE I*. TYPICAL BOOM OCSGNS

A- 1 AROOOU2

C 3. 2AK3 AND BARRIERS

— An earth fill dam, in one form or another, is cgeaonly used for- ' spill containment. Dams of this type may range from simple, manu-

ally constructed fills to more elaborate controlled-flov structuresdesigned to trap oil on vater.

Spills which occur oa dry land, remote from vater, generally providebetter prospects for effective containment with as earth fill barrierforming a temporary reservoir. A dry ditch or ravine can be blockedvita minims effort. A shallow holding pond can be formed by trench-ing sad terracing. Lead time is the most critical factor is any

and dictates where sad hew containment efforts must proceed.

If surface vater drainage is anticipated, preparations should bemade to pump or syphon off the water to the downgrade side. Valvedpipes of adequate siie extended through the dam during constructionmay offer an alternate solution (see figure 3). If valves are notavailable, pipes or tubes may ba placed at an inclined angle throughthe das vith the intake at as upstream lov point (veil belov oillevel) asd the discharge sat at the desired surface level (see

. . = figure *t). These vater by-pass arrangements arc also useful in case;vhere th* spill has already reached 9, flowing stream or creek. Prac-tical llaits depend on flov rate of the stress sad being able to pro*vide sufficient vs-ter by-pass capacity. leceisary pipe size for flovrates above 30 efs is in the range of 2fc to 30 inches diameter. Mult

( pie pipes cas also b* used*

VAUV£DEQUATE CAPACITYTO 8V-PASS WATEP

FIGURE 3i VALVED WATER BY-PASS DAM

STREAM FLOW

+ ^w~ ^ANCHOR AT 6-8 FEET/ * T*<;r- —-<C- INTERVALS ALONG

STRAW LAYER {6"MIN. THICK) / «fcbfc_ , BOTTOM CPWlRE -WIDTH OF 8ARfliER/ 10-15 FEET UPSTREAM

FIGURE 5: WIRE FENCE-STRAW BARRIER

Placement of any typ* barrier is critical with respect to vater •locity. Chances of spill recovery diminish rapidly in vater BOVfaster than 1 1/2 to 2 f«et per second. The more quiescent poolthe stream should be selected for containment operations. At lctwo barriers, and preferably tare* or more, should be placed inseries along the stream leaving work space between barriers.

Sorbent materials other than straw may be used if they are avai:and have the physical characteristics to perform adequately. Aiboom or barrier must be continuously maintained. At. the comple*of an emergency, all material addtd to a stress must be removeddisposed of in an appropriate manner.

AROOOIH

f The pit cize will depend on the amount of oil spilled and pump~ volume available. The opening from the stream into the pit should

: . . b« about 3" or V deep. A 1" x U" or lw x 6** bosrd, long enough"". to span the opening as a veir should be set on its edge and anchored

f 1/4 to 1/2 inch below the water surface. Tee flow over the veirwill provide a skimming action at the mouth of the pit.

Anchor posts should be set at the downstream side of the openingso a boos line can be attached* The free end of the boom lineshould be anchored to the opposite bank severs! feet upstream ofthe pit opening so th* oil will be deflected toward the pit. It isbest to launch the boom from the upstream anchor location and acrossfrom the collection pit (see figures 7 «fid 8).

SMALL MESHWIRE FENCE

ABSORBENT MATtHtfM. \ / I * i I "-'- 1^ SKMMER-HOSE

c

SKIMMER-HOSE

TO HOLDING POND ORTANK TRUCK

TO HOLDING PONO

MMER-HONCHOR POST

ROPE

FIGURE ?: DIVERTING BOOMS WITH COLLECTING PONDSAROOOU5

cA barrier with a torbent. material should be used downstream frcothe boom tVcatch any escaping oil. The boom may be a commercialor improvised type. In slov moving streams, logs or poles can belashed together end to end and vill do a satisfactory Job (seefigure 8). If available, Joints of irrigation or plastic sever'pipe vith the ends sealed make a quick, and satisfactory divertingtype boom.

In the application of any diver*ionary device, boom or straw barrier,consideration of the speed of the stream is essential. Devices setat right angles to the flow are subjected to the greatest physicalstress. Placement at an angle with the flow will drop the need formore rugged cables or supports. If the speed of the stream is over1.5 miles per hour it is almost impossible to retain an oil barrierdevice* It is recommended that the deflection be arranged so thatthe vector speed of the current to boom is less than the 1.5 mph.This vill preclude an undertov being created and the oil film beingpulled below the skirt.

AROOOU6

APPENDIX 3CONTAINMENT OP OIL ON

AROOOU7

APPENDIX BMOVagNT. COHTAIHMEHT AND OJEAHUP OF OIL ON LAND

Movement of Oil on Land

Lit* water, if the oil is not ianediately contained, it vill tend to flowinto toistins drainage ditches and storm severs and enter the surface vaterthat may be adjacent to a spill. Advance knowledge of the locations of stormsevers, sanitary severs and their destinations should be obtained. If a spilloccurs in a location vhere this is not known, prompt action is required to lo-cate manholes sad inlet structures. These structures should be protected Im-mediately before-the oil enters drains.

In some instances, fire departments and others wash spills from accidentsinto the nearest sever or ditch to reduce fire or explosion hazards. First pri-ority must go to preventing these hazards but this practice must be avoided ifthere are other alternatives.

Immediate Measures

Steps to be taken following s land spill are ss follows: 1) stop the flowof oil at the source, 2) minimize fixe sad explosion hazards, 3) take immediatemeasures to minimize seepage to the groundvater or movement to'.surf see vaters,and 4) return the area to its original condition.

Immediately after the spill, oil move* Into the soil et the fastestThe rate of movement vill then diminish vith tlsw* Sosw typical vertical v< _locitles for vater and various soils ere shown In Table 1* If e spill occurredin soil that allowed water to move downward vith e velocity of 10 feet per day,then gasoline could move 52 feet per day and crude oil could move only 3 feet perday (see Table 2).

TABLE 1•late of Vertical Flov of Vater Into Soil

TYPE OF SOIL

Unweathered ClayWeathered Clay or Clay withVegetation

Very Fine Silt & SandClean SandsClean GravelsMixtures of Silt & Sand withSome CUy

PERMEABILITY (Water)ft/day

almost nil

30 to almost nil3 to almost nil' 3,000 to 3300,000 to 3,000

50 to 3 .

A.I A R O O O I U 8

• • • t *»"•«« •*.*/ * *v*» .'v**T* »*Tf^".-7>.v.:v:.'.:v ;-v vV.'-::v.v:liU jU.U-i; li'i*; :6 r*lli"' •*»'•»*•. :*.«• *.****l«hrieian

WJXSBBZ 1: Hamoviag Oil from the Water Table by Pumping

Remove ellpumping

FIGU1Z 21 Using Ditches to lemove Oil from the Vater Table

further and can b* ptaped off for disposal* The depression can he created bypuBping as shova la figure 1. The ease result can be obtained by use of ditchesas shows la Figure 2 If the groundvater table la near the surface.

The use of a veil for lowering of the vater table vill produce from about3 to 20 barrels of vater for each barrel of oil. The use of e ditch vill nor-mally produce less vater per barrel of oil* As part of your planning for aground spill, you should locate a place to dispose of the contaminated ground-vater or a facility for temporary storage or separation of the oil fron thevater.

RROOOU98-3

APPENDIX C

EPA REGULATIONS FOR OIL POLLUTION PREVENTION

flROOOISO

(Hea.

§ue.iof the Convention on the TerritorialSea and the Contiguous Zone;"Deepwater port" meana ui offshore

facility u defined in section (3X10) ofth« Deepwater Port Act of 1874 (33OS.C. !S02UO»:"Discharge." when used In relation

to section 311 of th* Act. includes, butis net limited to. any spilling, leaking.pumptnt, pouring, emitting, emptying.or dumping, but exclude* <A> dis-charges in compliance with a permitunder section 403 of th* Act, (B) di*.chartea resulting from circumauidentified and renewed and mad* a

•Aft? ! 10— OISOtAIOI O« Oil pan of the public record wtth rapectto a permit issued or modified under

See. section 403 of th* Act. and iUOject to a110.1 CtttRitions. condition in such permit, and <C> eon*

Aooucaautty. tinuous or anticipated intermittentSS&fSJSSf! SS °* diacn«w» *«« » J»*»t Mure*. ld*ntt-n ouaatftlis u aay e# narnuut. « _,» »_ . •_,,,_[. _

Uene of cauaM oy erenta oeeumnff within th*such Quantities u may o* ftarmfui. scope of reierant operating or treat*

U04 Ofaetiarve pratutHUd. mentaynena:110.7 Exetpcum (or ve*ati tnflne* "UABPQL 73/?r* m*sns tft* Inttr-noi SSJ an BreiMti. national Conwmioa for th* Prrrra-uaio %S? ««" «« Po"««on from Ships, m a»uo.n DUchwrt u d**ff«t*r port*. modified ny the Protocol of 1371 reiat-AtmwBirr Seat, m cbx3> »sd (we** «nd inc thertw. Annex I. which retuiatec

Mliax Fedtral w«ter PoHuuoo Controt poUutton from oil and which enuredAct. u imtrtQrt O3 u.s.c. 1321 ;tJK3> »nd into force on October 3. 1 J»3:

ire. iw»x3> of tfte "NaviffsJBI* waurr* mean* th*atata*. inciudin**, tnciud«a:

sa»ptiW* to ua* is inttatax* or for-tnc.2 DdtiUtioea. e'cn commerce. Ineludin* all w*t*nAa used in thia part, th* foUowint «««r*«ubJ«t to th*e«>aniinowof

indicat."Act" meam th* Federal Water Pol- '«*««*» wetlands;

lutton Control Act aa amended. 33 l« a otiwr wat« aucft aa tottt-UAC 1231 «t »ea,» aiao known aa th* ?**** «- ven. «reaaa cinciudiiif?Clean Water ACK intermittent atreamai. mudflat*. sand*"Adminiatrator" mean* she Admtoia- fjata. and weuanda. th* me, decnda>

trator of the Environmental Prowc- tion. or deatruction of which wouldtion Aiency (EPA>- affect or could affect tnwntat* or for--Appiicatie water quality standards" ««« commerce including any such

meana State water quality standard! watersadopted by the Stat* pursuant to see- U> That ar* or could b* uaed byUon 303 of the Act or promufcrnted by interstate or foreign traveler* for rec-EPA punuant to that section; reaUonai or other ptapo***"Contixuoua zone" meana the entire (23 From which fish or ihcllflih ar*

zone established or to be established or could be taken and sold in inter-by the United States under artlcie 24 state or foreign commerce:

15

AROOOI52

!

i'll11 PlPIPliPlPi^Pinii•-**.. flif,u9j«j*i;*;fiig;i3»i|||||5||ii|||i||||j|:-|;l5ft 5 M £ £ a** Q.3 s &^ C*?*??^^^*1"?! 3— s w w ~ « * — i«SiC.t-* '*SS19S'oa*~ 9.^ *= c "3 fi «» ff a. c C1S a * E &S Et*.*-S*^i:f"=Si*i

5

^ isi So lislMifiitlls'sillslliill2*!!1!!*!!*!5 !!!-!!-SSsslII «s3lSlIlHal«ls3lgfitss»5»

t!!

S ^ • • 9 *•

§ T13-1 40 CF» Ch. I (7-1-«7 Edition)<E) Oil 'refining facilities including all (B) Transfer hoses. loading arms and

equipment uid sppunenances rented there- other equipment appurtenant to a mm-to u well u in-plmm processing unit*, star- irwsp<jrtatlon.reiaMd facility which is usedact units, piping. drsinsae systems snd to transfer aU In bulk to or trora a ves»ia-sstt treatment units used in the refiningof oU. but excluding any terminal faculty.

to ss well ss fixed bulk plant storage. tenm-nai o.l stow facilities. consumer storage.pumps snd drums* systems used m the ,°.Jli,!!O LJiJ>lp!"nT whleft tr*storagt of oil. but excluding iniine or ores*- ~ J?Lt2Jf ip?f* °U exeiu»*«*s'out stance tsnks needed for the continuous *1]t*"".™ r™— ot m ««n"«»Oons.ucn-opermtion of s pipeline system arid any ter. r *f* """tt OT lenBtnsi tadUty sndramai facility, unit or process mtetTiiiy u- *men *" " "Cended w transport oil insocated witn ttte hsndUne or trsraiemn* internet* or intnnste eoramtree or wof oil »n bulk to or from a veswi. transfer oU in bulk u or from a v«seti.<Q> Industrial, commercial, acncultural or {D) Highway vehicles and railroad ears

public facilities wnieh use and start oti. but w&cn *" use* Cor tn« tranport of oil tnexcludlni any terminal faetllty. unit or intern*** or imnstata eomnure* and th*proetas musrally associated with the han- «iuipBi«w and appurtenances related th*r**dUss or transferring of oil in butk to or to. aad •CRuoaent used Cor th« tuttina 6t to*from a vessel. - __ cameeive units, at well u the rtcnts-of -way(H) Waste treatment faculties mcludlnc on which they operate. Excluded art htch*

!n*ptaiu pfpeilncs. effluent dischan* tints, way vehicles aad railroad can and motivesnd storae* tanks, but excluding waste power used txetustnly within the confinestreatment (aditttes located on vessels and of a nontransportatlon-relaud faculty orterminal stsrac* unks and ao9urtenanetc terminal faculty and which art not tiucndtdfor the reception of oily ballast wawr or for UM in tnwntat* or tmrastat* commtrce.tank washtnn from vessels and associatedsystems used for of f -loadinc vessels.(I) Loading racks, transfer hoses, loading

urns and other -equipment wnten art appur-tenant to a namransoorutlon-retaud facili-ty or terrains! facility and wnieh an ustd utransfer oil in bulk to or from ntgaway vent-c!e» or ratiroad cars.-tj) Highway vehicles and railroad canwhich art ustd for the transport of oil ex*ciuaivtiy within the confines of a nontrans-portauoiMViaud faculty and wnieh art nottnttndtd to transaon oU in interstate ormtrastat* comaurce.(K) PiDtUnt systems whteh art ustd for

the transport of ott exclusively within thtronflnes oi a nomrsasiwrtatlon-reiaud fa-ellltjr or terminal facility and which art notintended to transport oil in interstate orUttrutat* cemmere*. but excluding pipelinesyatema ustd to transfer oil in bulk to orfrom a vessel.(21 "Transponatlan-relattd onsnort and

offshore facilltitf" means:(A) Onshore and offshore terminal facili-

ties including transfer hosts, losding armssnd other equipment and sppunenancesused for the purpose of handling, or trans-ferring oil in ouife to or, from a vessel as wellas storage tanks and appurtenances for thereception of oily ballast water or Unk wain*mgs from vesstls. out excluding terminalwast* treatment facilities and terminal oilstorat* facilities.

30

GAI CONSULTANTS, INC.

Issue Date_

Revision

VIRGINIA POWER

TECHNICAL SPECIFICATION

CONNECTION TO YORK COUNTY SEWER SYSTEM

SITE C

CHISMAN CREEK SUPERFUND SITE

YORK COUNTY, VIRGINIA

GAI CONSULTANTS, INC.570 BEATTY ROAD

MONROEVILLE, PENNSYLVANIA 15146

AROOOI56

.GAI CONSULTANTS, INC.

1:01 ._- -DESCRIPTION - The .WpRK to be performed under this sectionincludes .the installation or construction of_ thefollowing:

-.'•'••'-• 1-. : Sewer pipe -2. Manhole and appurtenances3 , Flow metering "system

1^02 . GENERAL. REQUIREMENTS „ .;

1:02.1 Except as: specifled differently herein, all earthworkshall comply with VEPCO Standards, Standard No. STD-CDF-4.04., "Standard-Specifications for Excavation, Filling,and Grading."

1:02.2 Excavate to the lines and grades shown on the DRAWINGS.

1:02.3 Conduct excavation operations so that materials outsidethe limits shown on the DRAWINGS shall not be removed orloosened. Restore any material removed or loosened toits original conditions. Use of construction equipmentbeyond the toe of .slope along Chisman Creek*'shall beminimized to the extent possible.

1:02.4 Construction, permitting, inspection, and testing of thesewer line shall meet the minimum requirements of theYork County Department of Public Works and Utilities.

1:02.5 v concrete shall be in accordance with VEPCO Standards, No.STD-CDF-4,01, "Standard Specifications for ReinforcedConcrete."

li.02.~6 A* 6-inch --Palmer-Bowlus flume shall be supplied andinstalled within the channel of the proposed manho1eshown on the DRAWINGS.

1:02.7' An ultrasonic flowmeter shall be supplied and installedto measure flow in the Palmer-Bowlus flume.'

1:02.3 A flow recorder shall be supplied and installed to recordeffluent flow.

l:-03 .. MATERIALS

1:03.1 --Bedding material shall conform with VDHT SpecificationSection 203 coarse aggregate and have gradation of AASHT-ONo. 57 (Table II-5) or shall conform with VDHT Specifica-tion Section 209 and meet requirements for Type I or TypeII and Size No. 21.

1:03.2 Six-inch diameter sewer pipe shall be PVC SDR 35 whichconforms to ASTM D-3034. "

AROOOI57

GA! CONSULTANTS, INC. 2 '

1:03.3 Sewer manhole shall be precast concrete which conforms toASTM C-478. Use "Kor-N-Seal" boot connection for themanhole or approved equal. ; ___ _

1:03.4 . Use manhole frames and covers conforming to ASTM A-48,Class 30. A watertight manhole cover shall be used.

1:03.5 The 6-inch Palmer-Bowlus flume shall be a molded one-piece unit of fiberglass reinforced polyester construc-tion having a smooth finish, free of any irregularities,on the inside surface. The flume shall be provided withfiberglass spreader bars to help maintain the flume'sdimensional characteristics during shipment, installationand operation. Internal fiberglass anchor clips shall beprovided to help secure the unit in place during instal-lation. The flume shall be a '6-inch EngineeredFiberglass Composites, Inc., Model "Palmer-Bowlus FlumeElement" complete with Fernco adaptor assembly or anapproved equal.

1:03.6 The ultrasonic flowmeter shall operate over a flowmeasurement range of 0 to 30 gallons per minute. Theflow signal shall be 4-20 mADC representing flow rate.The flowmeter shall be a Badger Meter Model UH2100Ultrasonic Flowmeter System or approved equal.

1:03.7 The flow recorder shall be a microprocessor based, cir-cular chart recorder capable of measuring and recordingflow. The recorder shall be a Partlow Instrument Model78600000071/N3 Microprocessor Circular Chart Recorder/Totalizer or approved equal.

1:04 METHODS

1:04.1 Sewer pipe, manhole and appurtenances, and flow meteringsystem shall be installed in accordance with the detailsshown oh the DRAWINGS.

1:04.2 The completed sewer pipe, including completion of trenchbackfill, shall be air tested by plugging the pipesection to be tested, pressurizing the pipe section to3.5 PSIG plus any hydrostatic head of ground waterobserved during construction. Final acceptance of thepipe shall be based on a pressure loss of less than 0.5PSIG over a five (5) minute observation period. The.manhole shall be tested fay observation for leakage in theevent of a high water table, or in the absence of groundwater the pipes shall be plugged and the manhole filledwith water. Final acceptance of the manhole shall bebased on a volume loss of less than 5 percent over a 24-hour observation period. The CONTRACTOR shall provideall equipment and labor to perform the sewer pipe andmanhole tests, and to repair any defects and retest asrequired.

AROOOI58

GAI CONSULTANTS, iNC.

1:04.3 k. The CONTRACTOR shall run a string line through the pipebetween manholes and perform deflection tests inaccordance with the York County Department of PublicWorks and Utilities.

1:04.4 Stripping and Stockpiling of Cover Soil

1. .-Areas required for construction shall be cleared ofall surface " objects, boulders, trees, brush,

_ stumps, roots and other organic, combustible orcompressible debris to the satisfaction of theOWNER.

2. Strip the existing soil cover and place in a soil'stockpile on-site. The surface of the stockpilesshall be uniformly graded .to direct runoff to theerosion and sedimentation control facilities.Straw bale barriers or silt fences shall be

' installed along the perimeter of the stockpile -tocontain sediment.

1:04.5 '- "Exposed o~r~~disturbed areas shall be limed, fertilized,seeded, and mulched in conformance with the appropriatesections of the va-SWCC "Virginia Erosion and SedimentControl Handbook."

1:04.6 Earth Excavation . ._ _

1* The CONTRACTOR shall remove pockets of soft ororganic materials from the bottom of all excava-tions. Such pockets shall be replaced by compactedcommon

2. Backfj.ll materials which cannot be placed at onceshall be deposited in temporary well-drainedstorage piles, as designated by the OWNER.

3. Surplus suitable excavated materials shall be, deposited at on-site well-drained locations asdirected by the QWNEK. •

1:04.7 - Trench Excavation

1, Excavations for underground piping shall be in opentrenches where possible. The use of excavationmachinery will be permitted except in places wheretheir operation will cause damage to existingstructures above or below ground/ in which casehand methods shall be employed*.

2. The CONTRACTOR shall excavate through whatever sub-stances are encountered to the depths indicated onthe DRAWINGS.

AROOOI59


3. The width of trenches shall not be less than asshown on the DRAWINGS.

4. Trench bottoms shall be accurately graded so that,when placed, the required bedding will providecontinuous and uniform support for the pipe. Thewidth of bottom of the trench shall be as indicatedon the DRAWINGS.

5. Except at locations where excavation of unsuitablematerial is required, care shall be taken not toexcavate below the depths specified. Over-excavation shall be backfilled and compacted to theproper grade with suitable .material.

1:04.8 Backfill Around Structures and Pipes

1. Bedding material shall conform to Item 1:03.1, andshall be comprised of the material shown and placedto the thickness called for on" the DRAWINGS.Bedding shall be compacted with four passes of avibratory plate compactor.

s

2. Care shall be taken so as not to cause vertical orlateral displacement of pipe during compaction.The OWNER shall be notified if any difficulties areencountered.

3. The remaining trench shall.be backfilled as shownon the DRAWINGS. Common soil backfill around pipesshall be placed in uniform 6-inch loose layers andcompacted to 90 percent of Standard Proctor (ASTMD698-78) maximum density. Rock over 2 inches inits greatest dimensions shall not be placed within12 inches of the pipe.

4. Trenches for pipe shall not be backfilled until alljoints are made and approval is granted by theOWNER to proceed.

5. After backfilling, the disturbed areas shall befine graded to blend in with existing contours,left with good, puddle-free drainage, and seeded ifappropriate.

6. Any settlement in trench backfill after finalgrading shall be investigated to determine thecause, and appropriate action shall be taken toalleviate the cause, at the direction of the OWNER.Any damage to site facilities caused by suchsettlement shall be repaired.

AROOOI60


1:04.9 , Flume and Flowmeter _. _'_

1. -The Palmer-Bowlus flume, ultrasonic f lowmeter "andflow recorder shall be installed in accordance withthe manufacturer'^ recommendations.

2. - The acoustic sensor for _the flowmeter shall bepermanently mounted at the proposed manhole andpositioned according to the manufacturer's approvedmethod, - - - - - _ . . _ . _ _ _ _ _ _ _

3. The electrical signaling cable from the f lowmeter 'sacoustic sensor to the f lowmeter 's transmittershall be installed in an exclusive 3/4-inch or 1-inch watertight metallic conduit.

4. The f lowmeter 's transmitter shall be enclosed in aNEMA 4X (indoor/outdoor) housing suitable formounting at the location specified by the OWNER.

5 . The flowmeter shall be connected to the flowrecorder in accordance with the manufacturer ' srecommendations .

AR000161

July 8, 1992 ,' P. Or B

Documents

Transcript of July 8, 1992 ,' P. Or B