ML11166A171

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CEC-1304 Schedule 3 Part a, Environmental Information Related to Water Supply and Wastewater Discharge Annual Report
ML11166A171
Person / Time
Site: Diablo Canyon  Pacific Gas & Electric icon.png
Issue date: 12/31/2009
From:
- No Known Affiliation
To:
Office of Nuclear Reactor Regulation
References
DCL-10-083
Download: ML11166A171 (15)
v • d • e


Text

CEC-1304 Schedule 3 Part A Year 2009 Environmental Information Related to Water Supply and Wastewater Discharge Annual Report CEC Plant ID N001 (For power plants 20 MW or larger, prepare a form CEC-1304 Schedule 3-A for each generator unit.) EIA Plant ID 6099 Generator (Unit) ID Unit 1 & 2 la Cooling Technology SC-OT n/a lb If "other" cooling technology, please n/a If Backup Water Supply Source describe 1c Primary Water Supply Source OE n/a Name of Backup Water Purveyor, Wastewater Name of Primary Water Purveyor, n/a igSupirorWlIDs Id Wastewater Supplier, or Well D(s)(s)le Primary Water Supply: Average Total 34,500 mg/L (Saltwater) lb Backup Water Supply n/a Dissolved Solids (mg/L) Average Total Dissolved Solids (mg/L)[ Check this box if water use is not metered and cannot be reasonably Ii Regional Water Quality Control Board Region-3 (Central Coast)e s t i m a t e d ._ _ _ _ __ _j1. 1k. Ill. im. in. 0 o. .lq. 0 Volume of Water Required (gallons) 0 0kSteam-Cycle l 1p.Inlet-Air Cooling Intercooling Cooling Other Cooling Sanitation Landscaping Other Water Use Daily Maximum January Reference Attached Data Spreadsheets for DCPP: CEC-2009 DCPP Seawater OTC (Once-Through-Cooling)

Flow.xls; CEC-2009 DCPP February Freshwater Resources

& SWRO Production (Summary).xls; CEC-2009 DCPP Power Production Freshwater Consumption (Summary).xls March April May une july August September October November December Ir Metering Frequency Continuous for OTC System. Is Metering Technology For OTC System: Circulating Water Pump (CWP) rated I Ir F y Ccapacities and loU ed hours of operation.

Check box if waste water discharge is not measured or can not be Volume of Waste Water Discharge 2 g. 2h.0i reasonably estimated. (tons or gallons) Daily Maximum Monthly Total" 2a Wastewater Disposal Method CE January Reference Attached Data Sheets for-,/vcragc I uial -,iuiwu JuuuN 34,500 mg/L (Saltwater)

February DCPP (Listed in Section-I).

o 2b, m .taejeruy (A 2c Equipment Manufacturer n/a March ( 2d Year of Installation n/a (OTC System Installed w/Plant Construction)

April n/a May 2e Waste Reduction Equipment or June Measures Taken-uly 2f Name of the Facility or Water Body Pacific Ocean at Diablo Cove. ** AugustReceiving the Wastewater September Notes: ** OTC Combined Discharge for Units 1 & 2. OTC Discharge includes all other October plant/facility wastewater discharges which are combined with the OTC flow prior to outfall to November receiving waters. December CEC F-, 134U Shd~k 3 i)CPP BM AI 3-A CEC-1304 Schedule 3 Part B Environmental Information Related to Biological Resources Reporting Period Year 2009 One Schedule 3B for each power plant. CEC Plant ID N0001 EIA Plant ID 6099 Check here if there have been no "takes" or []biomass killed by impingement Owners of power plants with a generating capacity of 1-MW or more shall submit copies of reports or filings required by regulations, permits, or contract conditions that identify any of the following information for the previous calendar year: 1. Documentation of the "take" of terrestrial, avian and aquatic wildlife subject to legal protection under California Fish &Game Code 5 2050 et seq., 16 U.S.C.A. 5 1371 et seq., 16 U.S.C.A. 5 1531 et seq., and 16 U.S.C. A. 5 668 et seq. that occurred as a result of operation of the power plant.2. Documentation and identification of the biomass (by weight) and species composition of fishes and marine mammals killed by impingement on the intake screens of each once-through cooling system.Notes: 1) During 2009 one (1) live & release impingement event occurred involving a Green Sea Turtle (Chelonis mydas). Reference Attached Regulatory Submittal

-Sea Turtle NMFS Stranding Report for DCPP, PG&E Letter DCL-2009-537 October 06, 2009 [NMFS Turtle Stranding Report DCPP (DCL-2009-537).pdf].

There were no other 'takes' of terrestrial, avian, or aquatic wildlife subject to legal protection due to Diablo Canyon Power Plant operations during 2009. 2) DCPP Units 1 & 2 fish impingement has been determined to be very low (average approximately 2-3 pounds of fish biomass daily). No specific monitoring or ongoing quantification/identification requirements regarding fish impingement exist for the facility.CEC Form 1304 Schedule 3 DCPP 2009.xls 3-B CEC-1304 Schedule 3 Part C Environmental Information Related to Biological Resources Reporting Period Year 2009 One Schedule 3C for each power plant. CEC Plant ID N0001 EIA Plant ID 6099 Check here if there have been no public El health or environmental quality violations.

Owners of power plants with a generating capacity of 1-MW or more shall submit copies of any written notification provided by any state or federal regulatory agency for the following:

1. Any violation of an applicable statute, regulation, or permit condition related to public health or environmental quality created by operation of the power plant during the previous calendar year, or for which there is an ongoing investigation regarding a potential violation at the time that the data identified in this subdivision is required to be filed with the Commission.

Notes: For DCPP Units 1 & 2 calendar year 2009: No (0) formal/finalized Notices of Violation (NOVs) were received related to environmental quality or public health. There is one (1) ongoing investigation involving a wastewater discharge exceedance during January 2009 preliminarily determined to meet the criteria of a State Mandatory Minimum Penalty (MMP) event. The event involved exceedance of the NPDES Permit Discharge Pathway 001P daily/monthly limitation for Total Suspended Solids (TSS). 001P is the waste water discharge for the facility Seawater Reverse Osmosis (SWRO) system brine reject and filter backwash blowdown.

The jurisdictional regulatory agency (Central Coast Regional Water Quality Control Board Region-3) has not to date issued a formal finding and penalty assessment.

CEC Form 1304 Schedule 3 DCPP 2009.xls 3-C PG AND E A/R NUMBER : A0320718 A/R TYPE : AT DCOM REQST GROUP: PGPR*** ACTION REQUEST ***A/R AGE: 00616 A/R STATUS STATUS DATE DATE REQUIRED: PAGE: 021 HISTRY IIJUL95 02DEC93 SUBGROUP : DAE+/- jj'n : U/I UL U REQST ID : RML2 CONTACT: AT: A/R

SUMMARY

CONTAMINATION FOUND OUTSIDE RCA 85'BY 02 BOILER & Ul WELL RM WHILE CONDUCTING ROUTINE WEEKLY SURVEY OF THE OUTSIDE THE RML2 02NOV93 RCA AREAS, CONTAMINATION WAS FOUND UNDER A DRAIN SPOUT ON RML2 02NOV93 THE CONCRETE NEAR THE Ul WELL ROOM, (UNDER TELEPHONE
  1. 1472 RML2 02NOV93 AND THE METER READOUT FOR 1-RE-35).

CONTAMINATION OF UP RML2 02NOV93 TO 3000 NCPM WAS FOUND INSIDE THE UTILITY BOX LOCATED IN RML2 02NOV93 THIS AREA. UP TO 1000 NCPM WAS FOUND ON THE CONCRETE RML2 02NOV93 UNDER THE DRAIN LINE. GAMMA SPEC SHOWS THE CONTAMINATION RML2 02NOV93 TO BE CO-60. THE UTILITY BOX WAS TAPED SHUT AND POSTED RML2 02NOV93 TO ALERT PERSONNEL.

RML2 02NOV93 THE CONTAMINATION ON THE ASPHALT IS NOT READILY SMEARABLE RML2 02NOV93 AND THEREORE WAS NOT POSTED AT THIS TIME. FURTHER RML2 02NOV93 SURVEYS ARE ON GOING. RML2 02NOV93 THE U2 DRAIN WAS CHECKED AND NO CONTAMINATION WAS FOUND. RML2 02NOV93 SEE SURVEY 93-8038 FOR FURTHER INFORMATION.

RML2 02NOV93 SEE SURVEY 93-8083 FOR BOUNDARIES AND FIXED CONTAMINATION LTMI 05NOV93 LEVELS. SURVEY NUMBERS 93-8039 AND 8044 DOCUMENT NEG- LTM1 05NOV93 ATIVE RESULTS FOUND ON OTHER DRAINS AROUND THE AUX AND LTMI 05NOV93 FUEL HANDLING BUILDINGS.

LTM1 05NOV93 DASI 05NOV93 REFERENCE QE 00011031 WHICH HAS BEEN INITIATED TO DASI 05NOV93 DOCUMENT THE DEFICIENCY.

DASI 05NOV93......................

...................................

MOS3 07DEC93 PAGE: 1 MOS3 07DEC93 REPORT ON THE PWST SPILL TO THE NORTH MOS3 07DEC93 ENVIRONS OF THE DCPP PROTECTED AREA MOS3 07DEC93 INTRODUCTION MOS3 07DEC93 WHILE PERFORMING A ROUTINE SURVEY OF MOS3 07DEC93 LOCATIONS WITHIN THE PROTECTED AREA BUT MOS3 07DEC93 OUTSIDE THE CONTIGUOUS RADIATION MOS3 07DEC93 CONTROLLED AREA (RCA), FIXED MOS3 07DEC93 CONTAMINATION WAS DETECTED.

THE MOS3 07DEC93 CONTAMINATION MEASURED UP TO SEVERAL MOS3 07DEC93 HUNDRED COUNTS PER MINUTE (CPM) USING AN MOS3 07DEC93 EBERLINE E-140 INSTRUMENT AND APPEARED MOS3 07DEC93 TO ORIGINATE FROM THE TERMINUS OF A DOWN MOS3 07DEC93 SPOUT-LIKE PIPE STUB IN THE AREA. MOS3 07DEC93 ANALYSIS OF THE CONTAMINATION SHOWED THE MOS3 07DEC93 PRESENCE OF A PURE BETA EMITTER, LATER MOS3 07DEC93 IDENTIFIED AS CARBON-14 (C-14). MOS3 07DEC93 SUBSEQUENT SAMPLING FOUND VERY LOW MOS3 07DEC93 LEVELS OF GAMMA EMITTING ACTIVATION AND MOS3 07DEC93 FISSION PRODUCTS IN THE DIRT UNDER A MOS3 07DEC93 BELOW GRADE VALVE BOX. MOS3 07DEC93 THE LIQUID WHICH WAS RELEASED ORIGINATED MOS3 07DEC93 IN THE PRIMARY WATER STORAGE TANK MOS3 07DEC93 (PWST). MAINTENANCE ON AN INTERNAL AIR- MOS3 07DEC93 IN LEAKAGE CONTROL BLADDER REQUIRED MOS3 07DEC93-~ ~

PG AND E *** ACTION REQUEST *** PAGE: 02 A/R NUMBER : A0320718 A/R AGE: 00616 A/R STATUS : HISTRY A/R TYPE : AT DCOM STATUS DATE : 11JUL95 REQST GROUP: PGPR DATE REQUIRED:

02DEC93 SUBGROUP : PRINT DATE : 07JUN10 REQST ID : RML2 CONTACT: AT: WATER TO BE PUMPED OUT OF THE TANK. THE MOS3 07DEC93 WATER WAS PUMPED THROUGH A HOSE WHICH MOS3 07DEC93 WAS ROUTED TO A FLOOR DRAIN. AS WILL BE MOS3 07DEC93 DISCUSSED, THIS FLOOR DRAIN LEAD MOS3 07DEC93 DIRECTLY TO THE NORTHERN PART OF THE MOS3 07DEC93 DCPP. CONTROLLED AREA. PWST WATER MOS3 07DEC93 TYPICALLY CONTAINS TRITIUM IN A MOS3 07DEC93 CONCENTRATION OF ABOUT 4 E-1 MICRO- MOS3 07DEC93 CURIES PER MILLI LITER. RECENT MOS3 07DEC93 EXPERIENCE WITH THIS FLUID HAS SHOWN MOS3 07DEC93 VARIABLE LEVELS OF C-14 TO BE PRESENT. MOS3 07DEC93 DUE TO THE VOLUME OF WATER INVOLVED IN MOS3 07DEC93 THIS INCIDENT, THE LOCATION OF THE MOS3 07DEC93 SPILL, THE PROXIMITY OF A PASSIVE OILY MOS3 07DEC93 WATER SEPARATOR, AND THE LOCAL MOS3 07DEC93 METEOROLOGY, NONE OF THE WATER ESCAPED MOS3 07DEC93 THE PROTECTED AREA. MOS3 07DEC93 DISCUSSION MOS3 07DEC93 DURING THE INITIAL PHASE OF THIS MOS3 07DEC93 INVESTIGATION, THREE ISSUES WERE MOS3 07DEC93 PARAMOUNT.

THESE ISSUES WHERE AS MOS3 07DEC93 FOLLOWS: MOS3 07DEC93 WAS THIS AN ISOLATED EVENT OR AN ON- MOS3 07DEC93 GOING OCCURRENCE, MOS3 07DEC93 HAD CONTAMINATED LIQUIDS BEEN MOS3 07DEC93 RELEASED OFF-SITE, MOS3 07DEC93 MOS3 07DEC93........................................................

MOS3 07DEC93 WHAT CONTROLS SHOULD BE PROVIDED FOR MOS3 07DEC93 THE CONTAMINATION PRESENTLY MOS3 07DEC93 IDENTIFIED

? MOS3 07DEC93 TO BEGIN TO ANSWER THE FIRST QUESTION, MOS3 07DEC93 DRAWINGS WERE LOCATED WHICH DESCRIBED MOS3 07DEC93 THE INPUTS AND ROUTING OF DRAIN SYSTEMS MOS3 07DEC93 IN THE AREA IN QUESTION.

IT WAS QUICKLY MOS3 07DEC93 CLEAR FROM DESIGN AND AS-BUILT DRAWINGS MOS3 07DEC93 THAT THERE WERE NO INPUTS FROM MOS3 07DEC93 CONTAMINATED SYSTEMS. THE SYSTEM OF MOS3 07DEC93 DRAINS AND LATERALS WHICH COMMUNICATE MOS3 07DEC93 WITH THE PIPE-STUB IN QUESTION WERE MOS3 07DEC93 SHOWN TO BE FLOOR DRAINS FROM UNIT 1 FAN MOS3 07DEC93 ROOMS AND ROOF DRAINS FROM THE 140' MOS3 07DEC93 LEVEL ADJACENT TO THE CONTAINMENT MOS3 07DEC93 STRUCTURE AND THE SPENT FUEL BUILDING MOS3 07DEC93 NONE OF THE AREAS MOS3 07DEC93 SERVICED BY THIS DRAIN SYSTEM ARE MOS3 07DEC93 CONTAMINATED OR CONTAIN CONTAMINATED MOS3 07DEC93 SYSTEMS. THIS LEAD DIRECTLY TO THE MOS3 07DEC93 CONCLUSION THAT THE INCIDENT WAS NOT ON- MOS3 07DEC93 PG AND E *** ACTION REQUEST *** PAGE: 03 A/R NUMBER : A0320718 A/R AGE: 00616 A/R STATUS : HISTRY A/R TYPE : AT DCOM STATUS DATE : 11JUL95 REQST GROUP: PGPR DATE REQUIRED:

02DEC93 SUBGROUP : _PRINT DATE : 07JUN10 REQST ID : RML2 CONTACT: AT: GOING, AND THAT AN I.E. BULLETIN NO. 80- MOS3 07DEC93 10 DESCRIBED CONTAMINATION OF NON- MOS3 07DEC93 RADIOACTIVE SYSTEMS WAS IN FACT NOT MOS3 07DEC93 PRESENT. MOS3 07DEC93 THE SECOND QUESTION WAS PERHAPS OF MOS3 07DEC93 GREATER INITIAL CONCERN AND WAS ATTACKED MOS3 07DEC93 IN PARALLEL WITH THE SEARCH FOR MOS3 07DEC93 DRAWINGS.

SURVEY DATA AS COLLECTED ON MOS3 07DEC93 STANDARD SURVEY MAPS (SEE ATTACHED)

MOS3 07DEC93 SHOWED THAT THE GROUND PLUME OF MOS3 07DEC93 CONTAMINATION STOPPED SHORT OF ANY YARD MOS3 07DEC93 DRAIN WHICH COMMUNICATED DIRECTLY WITH MOS3 07DEC93 THE PACIFIC OCEAN OR WITH DIABLO CREEK. MOS3 07DEC93 THE INITIAL CONCLUSION WAS THAT NO MOS3 07DEC93 LIQUID HAD ESCAPED THE SITE. SUBSEQUENT MOS3 07DEC93 SAMPLING OF A YARD DRAIN RECEIVER WHICH MOS3 07DEC93 PERFORMS AS A PASSIVE OILY WATER MOS3 07DEC93 SEPARATOR FOR THE YARD AREA NEAR THE MOS3 07DEC93 PLUME AREA SHOWED LOW E-3 MICRO-CURIE MOS3 07DEC93 PER MILLI LITER CONCENTRATIONS.

THE MOS3 07DEC93 ACTIVITY WAS ALL ATTRIBUTABLE TO TRITIUM MOS3 07DEC93 WHICH IS KNOWN TO BE PRESENT IN THE MOS3 07DEC93 PWST. THEREFORE, IS WAS SUBSEQUENTLY MOS3 07DEC93 ASSUMED THAT LIQUIDS DID REACH THE OILY MOS3 07DEC93 WATER SEPARATOR.

HOWEVER, WATER LEVELS MOS3 07DEC93 WERE WELL BELOW THE OUTLET WEIR AND THE MOS3 07DEC93 INITIAL CONCLUSION THAT THE LIQUID DID MOS3 07DEC93 NOT ESCAPE THE SITE WAS PRESERVED.

MOS3 07DEC93 THE THIRD QUESTION WAS ANSWERED MOS3 07DEC93 INITIALLY WITH SIGNS WARNING WORKERS NOT MOS3 07DEC93 TO DISTURB THE SURFACE WITHOUT NOTIFYING MOS3 07DEC93 THE RADIATION PROTECTION SECTION (RP). MOS3 07DEC93 THIS WAS CONSIDERED APPROPRIATE DUE TO MOS3 07DEC93 THE FIXED NATURE OF THE CONTAMINATION, MOS3 07DEC93 THE LOW LEVELS, AND THE LACK OF ANY MOS3 07DEC93 MEASURABLE DOSE RATE. THIS CONTROL WAS MOS3 07DEC93 LATER UPGRADED AT THE REQUEST OF RP MOS3 07DEC93 MANAGEMENT TO YELLOW AND MAGENTA ROPE MOS3 07DEC93 AND STANCHIONS TOGETHER WITH SIGNS WHICH MOS3 07DEC93 SURROUNDED THE AREA AND WARNED MOS3 07DEC93 INDIVIDUALS TO STAY OUT. MOS3 07DEC93 MOS3 07DEC93 AFTER THE AREA OF CONTAMINATION HAD BEEN MOS3 07DEC93 WELL DELINEATED USING PAINT, THE ENTIRE MOS3 07DEC93 SURFACE WAS COATED USING A COMMERCIAL MOS3 07DEC93 GRADE ASPHALT SEALANT. SURVEYS MOS3 07DEC93 PERFORMED AFTER APPLICATION OF THE MOS3 07DEC93 SEALANT DETECTED NO CONTAMINATION ABOVE MOS3 07DEC93 THE AMBIENT BACKGROUND.

WITH THIS MOS3 07DEC93 PG AND E *** ACTION REQUEST *** PAGE: 04 A/R NUMBER : A0320718 A/R AGE: 00616 A/R STATUS : HISTRY A/R TYPE : AT DCOM STATUS DATE : 11JUL95 REQST GROUP: PGPR DATE REQUIRED:

02DEC93 SUBGROUP : PRINT DATE : 07JUN10 REQST ID : RML2 CONTACT: AT: INFORMATION IN HAND, THE ROPE AND MOS3 07DEC93 STANCHION CONTROLS WERE REMOVED. MOS3 07DEC93 AS THE INITIAL PHASE OF RESPONSE WAS MOS3 07DEC93 BEING PERFORMED, FORMULATION OF THE MOS3 07DEC93 SECOND PHASE BEGAN. THE ISSUES FOR THE MOS3 07DEC93 SECOND PHASE WERE: MOS3 07DEC93 WHAT WAS THE SOURCE AND CONCENTRATION MOS3 07DEC93 OF THE LIQUIDS IN QUESTION, MOS3 07DEC93 AND, MOS3 07DEC93 WHAT REPORTS AND FOLLOW-UP ACTIONS MOS3 07DEC93 WERE REQUIRED ? MOS3 07DEC93 THE WALK-DOWN OF THE FAN ROOM DRAINS AS MOS3 07DEC93 A PART OF PHASE ONE ACTIVITIES PROVIDED MOS3 07DEC93 THE FIRST SOLID CLUES TO DETERMINING THE MOS3 07DEC93 SOURCE. RP TECHNICIANS RECOGNIZED A FAN MOS3 07DEC93 ROOM DRAIN AS ONE USED DURING BLADDER MOS3 07DEC93 REPAIRS TO THE PWST. SPECIFICALLY, THE MOS3 07DEC93 FLOOR DRAIN IN QUESTION WAS USED AS A MOS3 07DEC93 RECEPTACLE FOR RESIDUAL WATER PUMPED MOS3 07DEC93 FROM THE TANK DURING THIS MAINTENANCE MOS3 07DEC93 ACTIVITY.

ONCE THIS WAS CONFIRMED VIA MOS3 07DEC93 THE MAINTENANCE WORK CREWS, THE VOLUME MOS3 07DEC93 OF WATER REMOVED AND THE CONCENTRATION MOS3 07DEC93 OF RADIOACTIVE MATERIALS WAS RELATIVELY MOS3 07DEC93 EASY TO RECONSTRUCT.

MOS3 07DEC93 STATEMENTS FROM THE MAINTENANCE GROUP, MOS3 07DEC93 INCLUDING THE ENGINEER IN CHARGE OF THE MOS3 07DEC93 WORK INDICATED THAT LESS THAN 1/2 INCH MOS3 07DEC93 OF WATER WAS PRESENT ON THE CONTAMINATED MOS3 07DEC93 SIDE OF THE BLADDER. BASED ON VOLUME 9 MOS3 07DEC93 DATA (PAGE IE-16.3.A, ATTACHED), THIS IS MOS3 07DEC93 EQUAL TO ABOUT 402 GALLONS OF LIQUID. MOS3 07DEC93 PRESENT ON TOP OF THE BLADDER, ON THE MOS3 07DEC93"CLEAN" SIDE WAS ANOTHER SEVERAL INCHES MOS3 07DEC93 OF LIQUID. THIS VOLUME WAS ESTIMATED TO MOS3 07DEC93 BE ABOUT 2100 GALLONS. THE ENTIRE MOS3 07DEC93 VOLUME WAS MIXED TOGETHER BY CUTTING THE MOS3 07DEC93 BLADDER AND ALLOWING THE LIQUIDS FROM MOS3 07DEC93 OPPOSITE SIDES OF THE BLADDER TO CO- MOS3 07DEC93 MINGLE. THE RESULTANT MIXTURE OF MOS3 07DEC93 LIQUIDS WAS PUMPED FROM THE TANK TO THE MOS3 07DEC93 FLOOR DRAIN, WHICH WE NOW KNOW DUMPED MOS3 07DEC93 DIRECTLY TO THE PAVEMENT ON THE NORTH MOS3 07DEC93 SIDE OF THE BUILDING.

MOS3 07DEC93 MOS3 07DEC93 THE NOMINAL CONCENTRATION OF TRITIUM IN MOS3 07DEC93 THE PWST IS 4 E-1 MICRO-CURIES PER ML. MOS3 07DEC93 DILUTING THIS VALUE BASED ON THE ABOVE MOS3 07DEC93 VOLUMES OF "CLEAN" AND "CONTAMINATED MOS3 07DEC93 05 PG AND E A/R NUMBER : A0320718 A/R TYPE : AT DCOM REQST GROUP: PGPR*** ACTION REQUEST ***A/R AGE: 00616 A/R STATUS STATUS DATE DATE REQUIRED: PAGE: HISTRY 11JUL95 02DEC93 SUBGRO'UPe "INT VATL'Z : U/UUJxqU REQST ID : RML2 CONTACT: AT: FLUIDS YIELDS (400 GAL

  • 4.5 E-1 CI/ML
  • MOS3 07DEC93 3785 ML/GAL) = 6.81 E5 CI. THE FINAL, MOS3 07DEC93 DILUTED CONCENTRATION BECOMES 6.81 E5 MOS3 07DEC93 CI 2500 GALLONS
  • 3785 ML/GAL. THIS MOS3 07DEC93 CONCENTRATION THEN IS 7.2 E-2 CI/ML. MOS3 07DEC93 THIS AGREES CONCEPTUALLY WITH THE MOS3 07DEC93 CONCENTRATION OF TRITIUM FOUND IN THE MOS3 07DEC93 OILY WATER SEPARATOR, ASSUMING DILUTION MOS3 07DEC93 BY WATERS ALREADY PRESENT IN THE MOS3 07DEC93 RECEIVER.

THE CONCENTRATION FOUND IN MOS3 07DEC93 THE SEPARATOR WAS APPROXIMATELY 2 E-3 MOS3 07DEC93 CI/ML. THIS CONCENTRATION WAS PRESENT MOS3 07DEC93 IN A FLUID VOLUME EQUAL TO ABOUT 1700 MOS3 07DEC93 GALLONS, OR ABOUT 6.43 E6 ML. THIS MOS3 07DEC93 VOLUME IS THE "TRAPPED" VOLUME OF FLUID MOS3 07DEC93 WHICH LIES BELOW THE DEWATERING VALVE, MOS3 07DEC93 TBS-1-81.

BECAUSE OF THE DISTANCE MOS3 07DEC93 INVOLVED (>200 FEET), AND THE NUMEROUS MOS3 07DEC93 IMPERFECTIONS IN THE YARD SURFACE, MOS3 07DEC93 VIRTUALLY ALL OF THE FLUIDS ASSUMED TO MOS3 07DEC93 BE RELEASED COULD BE ADEQUATELY HELD UP MOS3 07DEC93 FOR EVAPORATION ON THE PAVEMENT SURFACE. MOS3 07DEC93 HOWEVER, SINCE NO OTHER INPUTS OF MOS3 07DEC93 TRITIUM HAVE BEEN POSTULATED, IT IS MOS3 07DEC93 ASSUMED THAT ABOUT 43 GALLONS (1.63 E5 MOS3 07DEC93 ML) SPILLED INTO THE PASSIVE SEPARATOR.

MOS3 07DEC93 THIS ADDITION WOULD ACCOUNT FOR LESS MOS3 07DEC93 THAN A 1 INCH RISE IN THE "TANK" LEVEL, MOS3 07DEC93 WHICH WOULD LEAVE THE LEVEL ALMOST 2 MOS3 07DEC93 FEET BELOW OVERFLOW.

THIS LEVEL WAS MOS3 07DEC93 VERIFIED BY CONVERSATIONS WITH CHEMISTRY MOS3 07DEC93 PERSONNEL CONTACTED DURING THIS MOS3 07DEC93 INVESTIGATION.

THIS LEADS DIRECTLY TO MOS3 07DEC93 THE CONCLUSION THAT NO FLUIDS WERE MOS3 07DEC93 RELEASED FROM THE PROTECTED AREA, SINCE MOS3 07DEC93 THE DEWATERING VALVE TBS-1-81 HAS NOT MOS3 07DEC93 BEEN OPERATED IN RECENT HISTORY AND THE MOS3 07DEC93 FLUID LEVEL WAS WELL BELOW OVERFLOW.

MOS3 07DEC93 THE "PLUME" OF MEASURABLE ACTIVITY WAS MOS3 07DEC93 MUCH LESS EXTENSIVE DUE TO THE HEAVIER, MOS3 07DEC93 PARTICULATE NATURE OF THE MATERIAL.

IT MOS3 07DEC93 PRECIPITATED OUT FROM THE FLOWING WATER MOS3 07DEC93 IN AN ALLUVIAL MANNER CONSISTENT WITH MOS3 07DEC93 SUSPENDED LOAD DYNAMICS.

THIS "PLUME" MOS3 07DEC93 HAS DIMENSIONS OF ABOUT 60 FEET MOS3 07DEC93 DOWNSTREAM BY 30 FEET ACROSS FLOW. MOS3 07DEC93 BASED ON THE TOTAL ACTIVITY MOS3 07DEC93 CHARACTERIZED IN PLACE, ALLOWING FOR MOS3 07DEC93 SOME WEATHERING, YIELDS A CONCENTRATION MOS3 07DEC93 PG AND E *** ACTION REQUEST *** PAGE: 06 A/R NUMBER : A0320718 A/R AGE: 00616 A/R STATUS : HISTRY A/R TYPE : AT DCOM STATUS DATE : 11JUL95 REQST GROUP: PGPR DATE REQUIRED:

02DEC93 SUBGROUP : PRINT DATE : 07JUNI0 REQST ID : RML2 CONTACT: AT: AT THE TIME OF THE RELEASE OF ABOUT 5 E7 MOS3 07DEC93 CI/ML. MOS3 07DEC93 THE SECOND QUESTION IN THIS SECOND PHASE MOS3 07DEC93 CONCERNED ITSELF WITH FOLLOW-UP ACTIONS MOS3 07DEC93 AND REPORTS. AT THIS POINT IN TIME, THE MOS3 07DEC93 LONG TERM PLAN IS NOT FINAL. THERE IS MOS3 07DEC93 LITTLE OR NO VALUE TO REMOVING THIS VERY MOS3 07DEC93 LIGHTLY CONTAMINATED MATERIAL FOR MOS3 07DEC93 MOS3 07DEC93 BURIAL AT A HIGH COST. AS MENTIONED, MOS3 07DEC93 ROPE AND STANCHION POSTING ARE REMOVED MOS3 07DEC93 AND THE AREA WILL BE STENCILED TO WARN MOS3 07DEC93 PERSONNEL NOT TO DISTURB THE AREA MOS3 07DEC93 WITHOUT CONTACTING RADIATION PROTECTION.

MOS3 07DEC93 IN ADDITION, SINCE THE RAINY SEASON IS MOS3 07DEC93 UPON US, THE OUTSIDE DRAINS WHICH ARE MOS3 07DEC93 PART OF THIS SYSTEM WERE FLUSHED WITH MOS3 07DEC93 CLEAN, DE-IONIZED WATER. THIS WATER WAS MOS3 07DEC93 ANALYZED FOR THE PRESENCE OF MOS3 07DEC93 RADIONUCLIDES.

NONE WERE DETECTED.

MOS3 07DEC93 REPORTING, PER 10CFR20 APPEARS TO BEGIN MOS3 07DEC93 WITH ONE OF TWO OCCURRENCES:

A) MOS3 07DEC93 RELEASING RADIOACTIVE MATERIALS TO AN MOS3 07DEC93 UNRESTRICTED AREA, OR B) OR LEVELS IN A MOS3 07DEC93 RESTRICTED AREA IN EXCESS OF MOS3 07DEC93 OCCUPATIONAL LIMITS. AN ANALYSIS OF MOS3 07DEC93 REPORTING REQUIREMENTS PER PARAGRAPHS MOS3 07DEC93 20.403, 20.404 AND OTHER REFERENCED MOS3 07DEC93 SECTIONS SCREEN NEGATIVE BECAUSE LIQUIDS MOS3 07DEC93 DID NOT REACH AN UNRESTRICTED AREA, AND MOS3 07DEC93 CONCENTRATIONS IN THE RESTRICTED AREA MOS3 07DEC93 (ACTUALLY, IN THIS CASE, WITHIN THE MOS3 07DEC93 PROTECTED AREA) DID NOT EXCEED THE MOS3 07DEC93 MPCWATER FOR TRITIUM (1 E-1 CI/ML) OR C MOS3 07DEC93 14 (2 E-2 CI/ML). IT MAY, HOWEVER, BE MOS3 07DEC93 DESIRABLE TO ISSUE A REPORT TO THE NRC MOS3 07DEC93 DETAILING THE EVENT, INVESTIGATION, AND MOS3 07DEC93 CORRECTIVE ACTIONS. MOS3 07DEC93 CONCLUSIONS MOS3 07DEC93 DUE TO THE LACK OF PRECIPITATION DURING MOS3 07DEC93 THE LATE SPRING THROUGH EARLY FALL TIME MOS3 07DEC93 FRAME, THE YARD DRAIN RECEIVER WHICH MOS3 07DEC93 FUNCTIONS AS A PASSIVE OILY WATER MOS3 07DEC93 SEPARATOR HAD ENOUGH CAPACITY TO CONTAIN MOS3 07DEC93 THE SMALL AMOUNT OF RELEASED PWST WATER MOS3 07DEC93 THAT FLOWED THAT DISTANCE.

THE BULK OF MOS3 07DEC93 THE RELEASED WATER WAS HELD UP IN MOS3 07DEC93 NUMEROUS SHALLOW IMPERFECTIONS IN THE MOS3 07DEC93 YARD AND IS ASSUMED TO HAVE MOS3 07DEC93 PG AND E *** ACTION REQUEST *** PAGE: 07 A/R NUMBER : A0320718 A/R AGE: 00616 A/R STATUS : HISTRY A/R TYPE : AT DCOM STATUS DATE : 11JUL95 REQST GROUP: PGPR DATE REQUIRED:

02DEC93 SUBGROUP : PRINT DATE : 07J"ON10 REQST ID : RML2 CONTACT: AT: EXPEDITIOUSLY EVAPORATED.

THE MOS3 07DEC93 COMBINATION OF "CONTAMINATED SIDE" AND MOS3 07DEC93"CLEAN SIDE" WATER PUMPED FROM THE PWST MOS3 07DEC93 AMOUNTED TO A VOLUME OF ABOUT 2500 MOS3 07DEC93 GALLONS AND HAD AN AGGREGATE TRITIUM MOS3 07DEC93 CONCENTRATION OF APPROXIMATELY 7 E-2 MOS3 07DEC93 CI/ML AND AN AGGREGATE CARBON-14 MOS3 07DEC93 CONCENTRATION OF APPROXIMATELY 5 E-7 MOS3 07DEC93 CI/ML. NO RADIOACTIVE FLUIDS LEFT THE MOS3 07DEC93 PROTECTED AREA, AND, THEREFORE, NO MOS3 07DEC93 RADIOACTIVE FLUIDS LEFT THE RESTRICTED MOS3 07DEC93 AREA WHICH EXTENDS SOME 800 METERS MOS3 07DEC93 BEYOND THE PROTECTED AREA AT THAT POINT. MOS3 07DEC93 DUE TO THE WIDE AREA OVER WHICH THE MOS3 07DEC93 WATER WOULD HAVE SPREAD, THERE WOULD BE MOS3 07DEC93 NO SIGNIFICANT PUDDLES OR LONG TERM MOS3 07DEC93 BOTTOM MOS3 07DEC93 HOLD UP, AND NO UPTAKE MECHANISM IS MOS3 07DEC93 CONSIDERED CREDIBLE.

MOS3 07DEC93 THE DESIGN OF FLOOR DRAINS IN AN AREA MOS3 07DEC93 NOT ONLY CONTIGUOUS WITH BUT ACCESSIBLE MOS3 07DEC93 ONLY THROUGH AN RADIOLOGICALLY MOS3 07DEC93 CONTROLLED AREA TO DIRECT FLUIDS TO AN MOS3 07DEC93 OUTSIDE AREA IS POOR. THIS DESIGN MOS3 07DEC93 SHORTFALL SHOULD BE COMPENSATED FOR IN MOS3 07DEC93 ONE OF SEVERAL WAYS. 1.) PERMANENTLY MOS3 07DEC93 BLANK ALL FLOOR DRAINS THAT ARE NOT MOS3 07DEC93 NEEDED TO CARRY AWAY ACTUALLY GENERATED MOS3 07DEC93 CLEAN FLUIDS. 2.) THOSE DRAINS WHICH MOS3 07DEC93 CANNOT BE BLANKED SHOULD BE STENCILED TO MOS3 07DEC93 WARN PERSONNEL NOT TO INTRODUCE ANY MOS3 07DEC93 FLUIDS INTO THE DRAIN. 3.) IMPROVE THE MOS3 07DEC93 WORK PACKAGE SYSTEM TO INCLUDE AN MOS3 07DEC93 ACCEPTABLE OR APPROPRIATE DRAINS LIST MOS3 07DEC93 WHEN DISPOSITION OF FLUIDS IS KNOWN OR MOS3 07DEC93 SUSPECTED.

4.) RE-ROUTE OR OTHERWISE MOS3 07DEC93 CAPTURE LIQUIDS PRESENTLY ASSOCIATED MOS3 07DEC93 WITH THIS FLOOR DRAIN SYSTEM. MOS3 07DEC93 THE ITEM NUMBERED 4 ABOVE IS PROBABLY MOS3 07DEC93 PROHIBITIVELY EXPENSIVE.

THEREFORE, MOS3 07DEC93 WITH A SMALL AMOUNT OF COST, ITEMS 1, 2, MOS3 07DEC93 AND 3 SHOULD PROVIDE AN ADEQUATE BARRIER MOS3 07DEC93 TO SIMILAR RELEASES.

MOS3 07DEC93 MOS3 07DEC93 THIS AR WILL BE RECODED TO AT-DCOM TYPE AR TO TRACK FOR MOS3 07DEC93 DECOMMISSIONING ACTIVCITY PER 1OCFR50.75.

MOS3 07DEC93 MOS3 04JAN94 NOTE: PLEASE CHANGE ABOVE REFERENCES WHICH USE CI/ML MOS3 04JAN94 UNITS TO MICRO-CURIE/

ML. MOS3 04JAN94 PG AND E *** ACTION REQUEST *** PAGE: 08 A/R NUMBER : A0320718 A/R AGE: 00616 A/R STATUS : HISTRY A/R TYPE : AT DCOM STATUS DATE : 11JUL95 REQST GROUP: PGPR DATE REQUIRED:

02DEC93 SUBGROUP : PRINT DATE : 07JUN10 REQST ID : RML2 CONTACT: AT:* SKFI 08MAR94 CIVIL W.O.# C0123777 (SUPPORT "RAD" PROTECTION)

SKF1 08MAR94 CIVIL WORK ORDER C0123777 IS COMPLETE.

PANI 21DEC94 TLI1 11JUL95 REFERENCE NCR N0001830.

AR TAKEN TO HISTORY. TLI1 11JUL95 MUC: F FEG: 0 00 XNA COMP ID: FEG DESC : ADMINISTRATIVE SYSTEM MISC/MULTIPLE FEG'S AR TAG: NO EQUIP TAG HAVE TAG CONSIDERATIONS BEEN ADDRESSED?

VERIFIED BY : REVIEW AND ASSIGNMENT POTENTIALLY REPORTABLE?:

N COMPONENT UNAVAILABLE:

N SFM NOTIFIED : Y PROBLEM CATEGORY : LEVEL OF DEGRADATION

__ PRIORITY : 1 000 REQUIRED DUE DATE : 02DEC93 SCHEDULE CATEGORY : CTD: E WMI: M1 RESPONSIBLE GROUP : PGPH SUBGROUP:

ID: INFO: IRVING, T QUALITY PROBLEM CHECKLIST QA CLASS *N/A QUALITY PROB: Y DASI 05NOV93 QP RESP ORG : N/A QP DUE DATE: N/A IND VERIFIER:

DATE: PROGRAM REVIEWS --MRFF : N REG DOC CD: PARENT AR: POA : OTHER INFO: DECOMMISSION

-SAVE LINK?SUPV GR: DC MTE ID :_SCHED RT NBR : OUTAGE : RVWR: N/A OEA DCP NBR: 000000 INTERNAL ORDER: PROJ _PROCESS ROUTING ID NAME PHONE PAGER DATE TIME INITIATED BY : RML2 LUND, DICK 3153 02NOV93 SUPV REVIEW BY: TPB1 BAST, T.P. 4588 4588 03NOV93 ROUTED BY : TPB1 BAST, T.P. 4588 4588 03NOV93 ASIGN RESP BY: N/A FIELD CMPLT BY: N/A COMPLETED BY : TLI1 IRVING, TL 3015 3015 11JUL95 WHEN AR GOES TO HISTRY STATUS, NOTIFY:

PAGE PG AND E A/R NUMBER : A0320718 A/R TYPE : AT DCOM REQST GROUP: PGPR*** ACTION REQUEST ***A/R AGE: 00616 A/R STATUS : HISTRY STATUS DATE : 11JUL95 DATE REQUIRED:

02DEC93: 09 SUBGROUP : _PRINT DATE : 07JUN10 REQST ID : RML2 CONTACT: AT: AE NUMBER AE DESC 01 AE TYPE: _ PROJ: AE STATUS/DATE:

COMPLT 11JUL95 PLEASE PROVIDE SEAL COATING FOR ASPHALT IN SPECIFIC AREA-----------

GROUP SUBGROUP ID ----------

INFO------------

REQUEST BY: PGPR PIMS SOMERVILLE, M.O.ASSIGNED TO: PCCL BRUNGS, K./SKF RETURNED BY: SKF1 STEVE FLATEN COMPLETE BY: TLI1 COMMIT CODE: OUTAGE : NOUT POA: SCHED PLEASE CONTACT RP AT 3668 OR 4007 TO PROVDIDE A COVER DATE --DUE : 07NOV93 ASSIGNED:

04NOV93 RETURNED:

19NOV93 SA STATUS: MOS3 03NOV93 SEAL COAT FOR AN AREA FOUND TO HAVE FIXED CONTAMINATION MOS3 03NOV93 AS DESCRIBED IN THE BODY OG THIS AR. MOS3 03NOV93 ASPHALT WAS COATED WITH "HENRY'S 132" ON 11-11-93.

SKF1 19NOV93 PG AND E A/R NUMBER : A0320718 A/R TYPE : AT DCOM REQST GROUP: PGPR*** ACTION REQUEST ***A/R AGE: 00616 PAGE: 10 A/R STATUS : HISTRY STATUS DATE : 11JUL95 DATE REQUIRED:

02DEC93 RSUBGROP P T DAT : U R 2 QOUT:J AU REQST ID RML2 CONTACT: _ ___________

AT:___AE NUMBER 02 AE TYPE: PROJ: AE DESC : EVALUATE IMPACT OF CONTAMINATION AE STATUS/DATE:

COMPLT 11JUL95-------GROUP SUBGROUP ID ---------INFO -----------------------

DATE --REQUEST BY: PGPR PIMS GRAY, R DUE : 15DEC93 ASSIGNED TO: PGPC GARDNER, J ASSIGNED:

29NOV93 RETURNED BY: JEG3 GARDNER,JE RETURNED:

07MAY94 COMPLETE BY: TLI1 COMMIT CODE: OUTAGE : NOUT POA: SCHED : SA STATUS: PLEASE EVALUATE THE IMPACT OF THE EVENT DESCRIBED ON THIS RXG4 29NOV93 AR FROM AN EFFLUENTS STANDPOINT.

RXG4 29NOV93 THE LEVELS INVOLVED WITH THIS INCIDENT ARE SMALL AND JEG3 07MAY94 DO PRESENT A SIGNIFICANT RAD EFFLUENTS CONCERN AT THIS JEG3 07MAY94 TIME. THE AMOUNT OF CONTAMINATION IS LIMITE TO THIS AREA JEG3 07MAY94 WHICH MAY HAVE BEEN LINKED TO A PREVIOUS PWST TANK JEG3 07MAY94 RELEASE WOULD HAVE BEEN ACCOUTED FOR BY LRW PERMITS. JEG3 07MAY94 PG ANqD E *** ACTION REQUEST *** PAGE: 11 A/R NUMBER : A0320718 A/R AGE: 00616 A/R STATUS : HISTRY A/R TYPE : AT DCOM STATUS DATE : 11JUL95 REQST GROUP: PGPR DATE REQUIRED:

02DEC93 SUBGROUP : PRINT DATE : 07JUN10 REQST ID : RML2 CONTACT: AT: AE NUMBER AE DESC 03 AE TYPE: _ PROJ: AE STATUS/DATE:

COMPLT 11JUL95 CORE SAMPLE AND SCABBLE ASPHALT NEAR PACKAGE BOILER-------GROUP SUBGROUP ID ---------INFO -----------------------

DATE --REQUEST BY: PGPR PIMS SOMERVILLE, M.O. DUE : 10FEB94 ASSIGNED TO: PCCL BRUNGS, K./SKF/JRM ASSIGNED:

02FEB94 RETURNED BY: PAN1 FLATEN, S. RETURNED:

21DEC94 COMPLETE BY: TLI1 COMMIT CODE: OUTAGE : NOUT POA: SCHED : SA STATUS: PLEARE PRCVIDE THE FOTT,OWTNC TO TlETERMTNE MATERIA, -- MOq3 02FEB94 MIGRATION AND POSSIBLE CORRECTIVE ACTION: MOS3 02FEB94 TAKE A CORE SAMPLE OF ASPHALT AND UNDERLYING STRATA NEAR MOS3 02FEB94 THE POINT WHERE THE ASPHALT IN QUESTION MEETS THE CEMENT MOS3 02FEB94 PAD BELOW THE "DOWNSPOUT", AND MOS3 02FEB94 SCABBLE THE UPPER LAYER OF ASPHALT IN THE AREA NOW COATED MOS3 02FEB94 WITH "HENRY'S" SEALER, IF SHOWN PRUDENT BY CORE SAMPLE. MOS3 02FEB94 CONTACT MARK SOMERVILLE AT 4007 FOR DETAILS. MOS3 02FEB94 SAMPLES HAVE BEEN TAKEN AND EVALUATED.

JOHN MAYFIELD WILL SKF1 21MAR94 INVESTIGATE THE POSSIBLITY OF USING EQUIPMENT ONSITE TO SKFI 21MAR94 REMOVE/SCABBLE ASPHALT. SKF1 21MAR94 CIVIL WORK ORDER C0123777 IS COMPLETE.

PAN1 21DEC94 PG AND E *** ACTION REQUEST *** PAGE: 12 A/R NUMBER : A0320718 A/R AGE: 00616 A/R STATUS : HISTRY A/R TYPE : AT DCOM STATUS DATE : 11JUL95 REQST GROUP: PGPR DATE REQUIRED:

02DEC93 SUBGROUP : _PRINT DATE : 07JUN10 REQST ID : RML2 CONTACT: AT: AE NUMBER AE DESC 04 AE TYPE: PROJ: AE STATUS/DATE:

COMPLT 14JUN94 PROVIDE FUNDING AND ACCOUNTING

GROUP SUBGROUP ID ---------INFO----------

REQUEST BY: PCCL PIMS STEVE FLATEN ASSIGNED TO: NCSS BLI A595F MJD RETURNED BY: MJDO DAVIS, M.COMPLETE BY: PAN1 COMMIT CODE: OUTAGE : NOUT POA: SCHED PLEASE PROVIDE FUNDING AND ACCOUNTING FOR THIS AR.DATE --DUE : 04MAR94 ASSIGNED:

04MAR94 RETURNED:

05MAR94 SA STATUS: SKF1 04MAR94 CIVIL MANHOUR FOR TEST HOLES= 30. SKF1 04MAR94 DLA1 04MAR94 COST PLANNER -MIKE DAVIS # 6505 DLA1 04MAR94 DLA1 04MAR94 FUNDING AUTHORIZED UNDER A595F, FOR 30 MNHRS. MJDO 05MAR94 SEE BELOW FOR ACCOUNTING INFO...............

MJDO 05MAR94 MANUAL LABOR AND MATERIAL ACCOUNTING:

MJDO 05MAR94 RC 22-665 DIV 18 FAC ID 51 ACTV 6137 SUB-ACTV 5595 MJDO 05MAR94 SPEC ID A595. MJDO 05MAR94 NON-MANUAL LABOR ACCOUNTING:

MJDO 05MAR94 RC 22-665 DIV 18 FAC ID 51 ACTV 6137 SUB-ACTV 5894 MJDO 05MAR94 SPEC ID M894. MJDO 05MAR94=========================END OF ACTION REQUEST=-

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