Text

Diablo Canyon, Units 1 and 2, 2010 Annual Radiological Environmental Operating Report, Cover Through Section 10.0 References
	ML11129A086
Person / Time
Site:	Diablo Canyon
Issue date:	04/28/2011
From:	Wright M B; Pacific Gas & Electric Co
To:	; Office of Nuclear Reactor Regulation
References
	DCL-11-050
	Download: ML11129A086 (101)
	v • d • e

Enclosure PG&E Letter DCL-1 1-050 2010 ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT 0 0 S 0 0 0 0U* 0 0* Environmental Operating Report* Diablo Canyon Power Plant 0* January 1, 2010 -December 31, 2010 0 S 0 I.0 0 0 0 0 0 0 0 0 0 0!0 S 0--- -____ i-J 0 0 0 S S 0 S 0 0 0 0 0 0 0 S 0 S S 0 0 2010 Diablo Canyon Power Plant ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT (AREOR)January 1, 2010 -December 31, 2010 Prepared By Pacific Gas & Electric Company Diablo Canyon Power Plant Prepared by: Date: Y1181201)C/Martin B. Wright, DCPP RP Senior Engineer Reviewed & Approved byK l 7,/7LO Date: Dr. Mark 0. Somerville, /DCPP ion Protection Manager'PG&E Submittal Letter DCL- 11-050 0 0 0* EXECUTIVE

SUMMARY

During the year 2010, a Radiological Environmental Monitoring Program (REMP) was 0conducted for the Diablo Canyon Power Plant (DCPP) to assess the levels of radiation or radioactivity in the environment.

More than 1100 samples were collected (including TLDs) over the course of the monitoring period, with approximately 2300 radionuclide or exposure rate analyses performed.

This report contains results from the operational Radiological Environmental Monitoring

Program (REMP) for Diablo Canyon Power Plant (DCPP) compiled for the period January 1, 2010*through December 31, 2010. This program is conducted in accordance with DCPP Program Directive* CY2, "Radiological Monitoring and Controls Program," and RP .ID 11, "Environmental Radiological

Monitoring Procedure." 0 The types of samples (matrix ID) collected for this monitoring period are as follows: Air Particulate (AP) Air Cartridges (AC) For Iodine Monitoring, Direct Radiation (TLD's) Milk (MK) Meat (MT) Vegetation (VG)Drinking Water (DW) Ground Water (GW) Surface Water (SW) Aquatic Vegetation (AV)Fish (FH) Mussels (IM) Sediment (SD)*Diablo Canyon REMP collects environmental samples and ships them to General Engineering Labs (GEL) located in Charleston, South Carolina.

All REMP lab sample analyses in 2010 were performed by GEL.The ambient direct radiation levels in the DCPP environs did not change and were within the preoperational range.Site operations had no significant impact on airborne radioactivity in the environment.

Site operations had no significant impact on surface water radioactivity.

0 Site operations had no significant impact on drinking water radioactivity.

Food crops, milk, and meat samples detected only naturally occurring radioactivity; and therefore had no impact from site operation.

Site operations had no significant impact on marine life radioactivity.

Site operations had no significant impact on aquatic or terrestrial vegetation radioactivity.

Ground water monitoring data is collected in accordance with the nuclear industry NEI 07-07 Groundwater Protection Initiative (August 2007). Concentrations of tritium were detected in three 0 0 0 0 0 monitoring wells beneath the DCPP power block (OW 1, OW2, and DY 1). This tritium is attributed to rain-washout of gaseous tritium exiting the plant vent system (via an approved discharge path). It should be noted that studies of the DCPP site indicate that any groundwater (subsurface) flow beneath the DCPP power block is not currently used as a source of drinking water. Due to topography and site characteristics, this subsurface flow discharges into the Pacific Ocean which is approximately 100 yards from the power block.In March 2008, the DCPP Unit Two (U-2) Steam Generators were replaced and the old U-2 Steam Generators (4 total) were stored onsite within the Old Steam Generator Storage Facility (OSGSF)mausoleum.

In February 2009, the DCPP Unit One (U-1) Steam Generators were replaced and the old U-I Steam Generators (4 total) were stored onsite within the OSGSF mausoleum.

In November 2009, the DCPP Unit Two (U-2) Reactor (Rx) Head was replaced and the old U-2 Rx Head was stored onsite within the OSGSF mausoleum.

In October 2010, the DCPP Unit One (U-i) Rx Head was replaced and the old U-I Rx Head was stored onsite within the OSGSF mausoleum.

As of 12-31-10, the OSGSF 0 contains eight old Steam Generators and two old Rx Heads. This OSGSF mausoleum did not cause any changes to the ambient direct radiation levels in the DCPP environs during 2010.The OSGSF building sumps were inspected quarterly by the REMP. Rainwater was found in the U-2 Old Steam Generator vault # 30 sump. This rainwater had tritium concentrations of < 1,000 0 pCi/Liter.

The rainwater from the sump was removed and processed via an approved radwaste discharge pathway.Beginning in June 2009, DCPP began loading of the Independent Spent Fuel Storage Installation 0 (ISFSI) and is discussed in Section 4. The ISFSI had no significant impact to the inner ring REMP TLD station readings.The results of the 2010 REMP showed no unusual findings from site operations.

These results were also compared to preoperational data and showed no unusual trends.The operation of DCPP had no significant radiological impact on the environment.

0 0 0 0 0 0 0 0 0 0 0 0 0 0 0* TABLE OF CONTENTS Executive Summary 0* 1.0 Introduction

2.0 Program Design 0 2.1 Monitoring Zones 2.2 Pathways Monitored* 2.3 Descriptions of REMP Monitoring 2.3.1 Direct Radiation 2.3.2 Airborne Radioactivity

2.3.3 Waterborne 2.3.4 Marine Biological, Beach Sand, and Ocean Sediment* 2.3.5 Food Crops* 2.3.6 Milk* 2.3.7 Meat* 3.0 Radiological Data Summary of Tables 4.0 Analysis of Environmental Results S* 4.1 REMP Sampling Variance / Deviations 4.2 Comparison of Achieved LLDs with Requirements 0 4.3 Comparison of Results Against Reporting Levels 4.4 Data Analysis by Media Type 4.4.1 Direct Radiation* 4.4.2 Airborne Radioactivity

4.4.3 Waterborne 4.4.4 Marine Biological, Beach Sand, and Ocean Sediment* 4.4.5 Food Crops* 4.4.6 Milk 4.4.7 Meat 5 5.0 Groundwater Monitoring

6.0 Old Steam Generator Storage Facility 0* 7.0 Cross Check Program* 8.0 DCPP Annual Land Use Census 5 9.0 DCPP Wind Rose 0 10.0 References

Appendix A REMP Summary Tables* Appendix B Direct Radiation Results Appendix C Analytical Sample Results S S 0 0 0 0 LIST OF TABLES Table Title 2.1 Radiological Environmental Monitoring Program 2.2 Distances and Directions to Environmental Monitoring Stations 2.3 Detection Capabilities for Environmental Lower Limit of Detection (LLD)Sensitivity Requirements 2.4 Reporting Levels for Radioactivity Concentrations in Environmental Samples 0 0 LIST OF FIGURES 0 Finure Title 0 2.1 Diablo Canyon Off-site REMP Locations 0 2.2 Diablo Canyon On-site REMP Locations0 2.3 Diablo Canyon REMP Stations 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0*

1.0 INTRODUCTION

Diablo Canyon Power Plant (DCPP) consists of two Westinghouse pressurized water reactors.*Unit 1 began commercial operation in 1985, and Unit 2 began commercial operation in 1986.0*Radiological Environmental Monitoring Program (REMP) samples are collected by DCPP REMP personnel and sent to General Engineering Labs in Charleston, South Carolina for analysis.

Fish (except market fish) and ocean sediment samples are collected by contract divers of Tenera Environmental and given to DCPP REMP personnel for shipment to GEL. Market fish samples are collected by local commercial fishermen and then purchased by DCPP REMP personnel in one of two local fish markets for*shipment to GEL. Direct radiation analyses were conducted by DCPP REMP personnel and the DCPP*Thermoluminescent Dosimeter (TLD) Lab.0 DCPP sends replicate samples of milk (5F2), drinking water (DW1), outfall water (OUT), Diablo Creek (5S2), vegetative crops (7G1), fish (DCM), sediment (DCM), and kelp (DCM) to the California Department of Public Health (CDPH) Radiological Health Branch as part of a State cross check program.0Other pathways monitored independently by the CDPH are direct radiation and air sampling.0 This report summarizes the quarterly findings of the Radiological Environmental Monitoring

Program (REMP) conducted by the Diablo Canyon Power Plant. The remainder of this report is organized as follows: Section 2: Provides a description of the overall REMP design. Included is a summary of the*requirements for REMP sampling and tables listing routine sampling and TLD monitoring locations with distances from the plant. Tables listing Lower Limit of Detection requirements and Reporting Levels (NRC notification if levels are*exceeded) also included.0 Section 3: Consists of the summarized data as required by the Radiological Environmental

Monitoring Program. The summaries are provided similar to that specified by the NRC Branch Technical Position on Environmental Monitoring.

0 Section 4: Provides a summary of the results for the samples collected.

The performance of the 0program in meeting the requirements is discussed, and the data acquired during the monitoring period is analyzed.

Also included is environmental TLD preoperational data trending.0 Section 5: Provides a summary of groundwater monitoring in accordance with the nuclear*industry NEI 07-07 Groundwater Protection Initiative (August 2007).0 0 0 0 0 0 0 0 2.0 PROGRAM DESIGN The Radiological Environmental Monitoring Program (REMP) for the Diablo Canyon Power Plant (DCPP) was designed with the following specific objectives in mind. These objectives will continue to be in force, to varying degrees, throughout facility operation.

To provide an early indication of the appearance or accumulation of any radioactive material in the environment caused by facility operation.

Preoperational data is also used in this comparison.

S To provide assurance to regulatory agencies and the public that the station's environmental impact is known and within anticipated limits.To provide standby monitoring capability for rapid assessment of risk to the general public in the event of unanticipated or accidental releases of radioactive material.S 0 The environmental media selected were based on the critical dose pathways of the radionuclides from the environment to man. They included the following:

direct radiation, air, water, fish, ocean sediment, and invertebrates.

Supplemental samples such as algae, kelp, local agricultural crops, recreational beach sand, groundwater, meat, and milk were also collected.

The sampling locations were determined by land use, site meteorology, and local demographics.

Guidance for this monitoring program is provided by the Radiological Assessment Branch Technical Position on Radiological Environmental Monitoring, Revision 1, November 1979 0 The detailed sampling requirements of the REMP are given in Table 2.1 of this report. Summaries of REMP sampling for the period are shown in Appendix A of this report. Direct dose (environmental TLDs) results are shown in Appendix B of this report. The REMP sample isotopic results (including 2 sigma total propagated error) are shown in Appendix C of this report. Any deviations from the REMP sampling schedule requirements are documented in section 4.0 of this report.0 0 0 0 0 0 0 0 0 0 0 0* 2.1 MONITORING ZONES The REMP is designed to allow comparison of levels of radioactivity in samples from the areas possibly influenced by DCPP to levels found in areas not influenced by the facility operations.

Areas with the potential to be influenced by facility operations are called"indicator" stations.

Areas with sufficient distance from the plant that are not likely to be influenced by facility operations are called the "control" stations.

The distinction between the two zones is based on relative direction from the plant and distance.

Analysis of survey data from the two zones aids in determining if there is a significant difference between the two areas. It can also help in differentiating between radioactive releases and seasonal variations in the natural environmental background.

0 2.2 PATHWAYS MONITORED*Direct Radiation*Airborne Radioactivity Waterborne Pathways Marine Biological, Beach Sand, and Ocean Sediment*Food Crops*Milk Meat

2.3 DESCRIPTION

S OF REMP MONITORING 2.3.1 Direct Radiation SDirect ambient radiation was measured at 31 stations in the vicinity of DCPP using*Panasonic UD814 TLD badges. The TLD badges had valid element correction

factors (ECF), were calibrated using a NIST-traceable cesium-137 source, were annealed prior to placement, and were sealed in watertight packaging.

These*badges were replaced on a quarterly basis.Direct ambient radiation was measured at 8 stations in the vicinity of the ISFSI*using Panasonic UD814 TLD badges. The TLD badges had valid element*correction factors (ECF), were calibrated using a NIST-traceable cesium-137 source, were annealed prior to placement, and were sealed in watertight packaging.

These badges were replaced on a quarterly basis.0 The field TLD badge packets were prepared and processed by DCPP personnel and the DCPP TLD Lab. Control badges were carried with the field badges to measure any dose received during transit. The location, date, and time of exchange were recorded on a log sheet which accompanied the field badges. The net exposure was*reported over a standard 90 day quarter.2.3.2 Airborne Radioactivity Air particulate and radioiodine sampling were performed weekly at six indicator stations:

MT1, 0S2, IS 1, 7D11, 8S1 and 8S2. Air particulate and radioiodine

sampling was performed weekly at one control station: 5F 1.0 0 0 0 0 0 0 0 0 Constant flow air samplers were used to draw air through paper filters to collect air particulates and through triethylenediamine (TEDA) impregnated charcoal cartridges to collect radioiodine.

The air samplers were set at a flow rate of 1.5 standard cubic feet per minute. The air samplers were located approximately one meter above the ground. The sample volumes were determined by F&J Corporation model DF- 1 flowmeters (corrected to standard temperature and pressure, STP) which are installed downstream of the sample head. At the end of the sampling period (weekly), the filter and cartridge were collected.

All necessary data regarding the air volume readings, flowrate, sampler time on and off, date of collection, and sampler location were recorded and submitted to GEL along with the samples for analysis.Approximately 72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months after sampling (to allow for radon and thoron daughter decay), the filter papers collected from the field were placed on individual planchets and counted for gross beta activity in a low background, thin window gas proportional counter. Gamma isotopic analysis was then performed on quarterly composites of the filters (by location) to determine the activity concentration of gamma emitting isotopes.The TEDA impregnated charcoal cartridges were counted for each weekly sampling period at each location for gamma isotopic analyses to determine the radioiodine concentration.

0 2.3.3 Waterborne 0 Water samples (drinking water, surface water, monitor wells, and groundwater) were collected at the frequencies shown in Table 2.1 0 Ocean surface water samples were collected at Diablo Cove (station DCM), Rattlesnake Canyon (station 7C2), and at the plant Outfall (station OUT).0 Drinking water samples were collected from Diablo Creek Weir (station 5S2), Diablo Creek Outlet (station WN2), Blanchard Spring (station 1A2), and from the DCPP drinking water system (station DW1). Drinking water was also collected from a control station located in San Luis Obispo at the Offsite Emergency Lab (station OEL).0 Supplemental groundwater samples were collected from Water Well 02 (WW2)and DCSF96-1 (8S3).0 Supplemental onsite monitoring well samples were collected from Observation Well 01 (OW 1), Observation Well 02 (OW2), and a french drain system labeled Drywell 115 (DY1). These shallow wells are located in close proximity to the facility power block structures and within the protected area.After collection, the samples were securely sealed and labeled with sample type, location, date, time of collection, and the person performing the collection and sent to GEL for analysis.0 0 0 0 0 0 S 0* 2.3.4 Marine Biological, Beach Sand, and Ocean Sediment*The REMP requires sampling of rockfish (family Sebastes ), perch (family*Embiotocidae), mussels (family Mytilus), and ocean sediment from indicator station DCM and control station 7C2. All other marine samples collected are considered supplemental.

These supplemental marine samples included the*following:

intertidal algae, intertidal mussels, kelp, and market fish. The intertidal samples were collected by DCPP personnel during low tidal conditions.

Kelp was collected quarterly by DCPP personnel from the offshore kelp bed in the vicinity of*the plant. Quarterly samples of fish and an annual sample of ocean sediments were collected from the plant environs by contracted divers (TENERA Environmental)..

The Tenera divers fillet the fish and leave a small portion of skin for identification.

Beach sand was collected by DCPP personnel between the high and low tide boundaries at nearby recreational beaches. Fish caught locally by commercial fishermen were purchased from two local fish markets (Avila Beach Pier-7D3 and*Morro Bay-2F 1).0All samples were subject to unavailability due to seasonal fluctuations or 0unfavorable sampling conditions.

The above samples were sealed in plastic bags*immediately upon collection.

Mussels are sent to GEL in-shell where GEL personnel remove the meat & internal organs for analysis.

Only edible portions*of the fish were analyzed (fish fillets).

The samples were labeled with sample type, location, date, time of collection, and individual performing the collection.

The samples were then frozen (to prevent spoilage odor) before they were sent to*GEL for analysis.2.3.5 Food Crops The REMP requires broadleaf food vegetation to be collected in the nearest off-*site locations of the highest calculated annual average ground level D/Q*(dispersion parameter) within 5 miles. There is no broadleaf food vegetation available that satisfies this requirement.

Because these food products are unavailable, the DCPP REMP conducts additional air sampling in the SE (station*8S2) and NNW (station I SI) sectors. Additional representative samples of food crops in season were collected monthly from supplemental stations:

Cal Poly Farm (5F2), Kawaoka Farm in Arroyo Grande (7G1), Mello Farm (7C1) along*the site access road, and a quarterly household garden (6C 1).The monthly samples were collected by DCPP personnel and sealed immediately

in plastic bags. The quarterly household garden sample (6C 1) is provided to*DCPP personnel by the land occupant (due to access difficulty and privacy).

The samples were labeled with sample type, location, collection date, collection time, and the individual performing the collection.

The samples were normally frozen*before they were sent to GEL for analysis (to prevent spoilage odor).2.3.6 MilkThere are no animals within the vicinity of the plant that are utilized for milk consumption by humans. However, supplemental samples of cow milk were collected monthly from Cal Poly Farm (5F2) which is approximately 13 miles*from DCPP. Two 1-gallon plastic containers of milk were collected each*sampling period by DCPP personnel.

Forty grams of sodium bio-sulfite preservative were added to each gallon of milk sample. The containers were 0 0 0 0 0 0 0 sealed and shaken thoroughly to distribute the preservative.

The containers were labeled with sample type, location, collection date, collection time, and the individual performing the collection.

The samples were then express shipped to GEL for analysis.0 2.3.7 Meat A rancher routinely grazes cattle, goats, and sheep within three miles of the site boundary.

These livestock meats were offered at local farmer's markets and private distribution.

This meat commodity began at the end of 2007. REMP personnel obtained meat samples of each species directly from the land owner.Gamma spec and strontium analyses were performed on the meat.0 Property owners could hunt deer and wild pig (in season) within 5 miles of the site boundary.

The REMP attempted to obtain meat samples from these property owners when available.

Gamma spec and strontium analyses were performed on the meat (when provided).

No deer or pig meat were provided in 2010.The meat was initially packaged by the livestock owners and turned over to REMP personnel.

The packages were then separated by species and placed in large zip-lock bags. Each bag was labeled with sample type, location, collection date, collection time, and the individual performing the collection.

The samples were then frozen and sent to GEL for analysis.0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TABLE 2.1: Radiological Environmental Monitoring Program 0 0 0 0 0 S 0 S 0 0 S 0 0 0 0 0 Exposure Pathway Number of Representative Sampling Collection Frequency Type of Required or and/or Sample Type Samples and Sample Stations Analysis Supplemental Locations'

1. Direct Radiation 2 Thirty-one routine monitoring stations containing thermo luminescent dosimeters (TLDs)such that at least two (2)phosphors are present at each station, placed as follows: An inner ring of stations, one in OS1, 0S2, Quarterly Gamma Dose Required each terrestrial meteorological WN1, 1S1, sector in the general area of the 2S1, 3S1,4S1, SITE BOUNDARY; 5S1,6S1,7S1, 8S1, 9S1, 8S2, 5S3, and MT1 An outer ring of stations, one in 1A1, 0B1, 1C1, Quarterly Gamma Dose Required each terrestrial meteorological 2D1, 3D1, 4C1, sector in the 2.5 to 12 km range 5C1, 6D1, and from the site; and 7C1 One or two areas to serve as 4D1, 5F1 Quarterly Gamma Dose Required control stations; and The balance of the stations to 7D1, 7D2, 5F3, Quarterly Gamma Dose Required be placed in special interest 7F1, and 7G2 areas such as population centers, nearby residences, or schools.A minimum of four stations IS1, IS2, IS3, Quarterly Gamma Dose Required around the ISFS1 IS4, IS5, IS6, IS7,IS8 2. Airborne Samples from > 4 stations: Radioiodine Three samples from close to the MT1, 0S2, and Continuous sampler 1-131 analysis Required three SITE BOUNDARY 8S1 operation with sample locations ( 0S2, 8S1, & MT1 ) in collection weekly, or different sectors. more frequently if required by dust loading.One sample from the vicinity of 7D1 Continuous sampler 1-131 analysis Required a community having the highest operation with sample calculated annual average collection weekly, or ground level D/Q. more frequently if required by dust loading.If food products are unavailable, 1S1 & 8S2 Continuous sampler 1-131 analysis Required additional air sampling will be operation with sample done in the NNW (station 1S1) collection weekly, or and SE (Station 8S2) sectors. more frequently if required by dust loading.One sample from a control 5F1 Continuous sampler 1-131 analysis Required location, operation with sample collection weekly, or more frequently if required by dust loading.

Table 2.1 (continued Exposure Pathway Number of Representative Sampling Collection Type of Analysis Required or andlor Sample Type Samples and Sample Stations Frequency Supplemental Locations'

3. Airborne Samples from > 4 stations: Particulate Three samples from close to the MT1, 0S2, and Continuous Weekly gross beta Required three SITE BOUNDARY 8S1 sampler operation radioactivity locations ( 0S2, 8S1, & MT1 ) in with sample analysis following different sectors. collection weekly, filter change 3.or more frequently Quarterly gamma if required by dust isotopic analysis 4 loading, of composite consisting of approx 12 filters (by location).

One sample from the vicinity of 7D1 Continuous Weekly gross beta Required a community having the highest sampler operation radioactivity calculated annual average with sample analysis following ground level D/Q. collection weekly, filter change 3.or more frequently Quarterly gamma if required by dust isotopic analysis 4 loading, of composite consisting of approx 12 filters (by location).

If food products are unavailable, 1 S1 & 8S2 Continuous Weekly gross beta Required additional air sampling will be sampler operation radioactivity done in the NNW (station 1S1) with sample analysis following and SE (Station 8S2) sectors. collection weekly, filter change 3.or more frequently Quarterly gamma if required by dust isotopic analysis 4 loading, of composite consisting of approx 12 filters (by location).

One sample from a control 5F1 Continuous Weekly gross beta Required location, sampler operation radioactivity with sample analysis following collection weekly, filter change 3.or more frequently Quarterly gamma if required by dust isotopic analysis 4 loading, of composite consisting of approx 12 filters (by location).

4. Waterborne

a. Surface Ocean One sample from the plant OUT, DCM, Monthly Gamma isotopic 4 Required Water Outfall, Diablo Cove, and an and 7C2 (grab sample) and tritium area not influenced by plant analysis.discharge.

One sample from the plant OUT, DCM, Quarterly Gross Beta, Supplemental Outfall, Diablo Cove, and an and 7C2 (grab sample) Total Sr, Fe-55, area not influenced by plant and Ni-63 discharge.

0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 S 0 0 0 0 0 S 0 S 0 0 0 0 0 S 0 0 0 0 Table 2.1 (continued)

Exposure Pathway Number of Representative Sampling Collection Type of Analysis Required or and/or Sample Type Samples and Sample Stations Frequency Supplemental Locations 1 b. Drinking Water One sample from the plant DW1 and 5S2 Monthly Gamma isotopic 4 , Required drinking water, one sample from DEL (control) (grab sample) 1-131, and tritium Diablo Creek (upstream of analysis.plant), and one control sample.One sample from the plant DWI and 5S2 Quarterly Gross Beta, Supplemental drinking water, one sample from OEL (control) (grab sample) Total Sr, Fe-55, Diablo Creek (upstream of and Ni-63 plant), and one control sample.One sample from Diablo Creek WN2 and 1A2 Quarterly Gamma isotopic 4 , Supplemental (downstream of plant) and one (grab sample) tritium, 1-131, gross sample from Blanchard Spring. beta, Total Sr, Fe-55, and Ni-63 c. Groundwater One sample from wells located OWl, OW2, Quarterly Gamma isotopic 4 , Supplemental under the plant power block, and DY1 (grab sample, tritium, gross beta, when available)

Total Sr, Fe-55, and Ni-63 One sample from a well located WW2, 8S3 Quarterly Gamma isotopic 4 , Supplemental outside the plant power block (grab sample, tritium, gross beta, (control sample). when available)

Total Sr, Fe-55, and Ni-63 d. Sediment One sample of offshore ocean DCM and 7C2 Annual Gamma isotopic 4 Required sediment from Diablo Cove and (grab sample)Rattlesnake Canyon.One sample of offshore ocean DCM and 7C2 Annual Total Sr, Fe-55, Supplemental sediment from Diablo Cove and (grab sample) and Ni-63 Rattlesnake Canyon.One sample from each of five AVA, MDO, Semi- Annual Gamma isotopic 4 , Supplemental local recreational beaches. PMO, CYA, (grab sample) Total Sr, Fe-55, and CBA and Ni-63 e. Marine Flora One sample of kelp DCM, PON, Quarterly Gamma isotopic 4 Supplemental POS, and 7C2 (when available)

One sample of intertidal algae DCM and 7C2 Quarterly Gamma isotopic 4 Supplemental (when available)

Table 2.1 (continued)

Exposure Pathway Number of Representative Sampling Collection Type of Required or and/or Sample Type Samples and Sample Stations Frequency Analysis Supplemental Locations'

5. Ingestion a. Milk Samples from milking animals in 5F2 Semimonthly Gamma isotopic 4 Supplemental three locations within 5 km when animals are and 1-131 distance having the highest on pasture; analysis.dose potential.

If there are none, monthly at other then one sample from milking times.animals in each of three areas between 5 to 8 km distance where doses are calculated to be greater than 1 mrem per year. One sample from milking animals at a control location 15 to 30 km distant and in the least prevalent wind direction.

NOTE: The sample (5F2)should be taken monthly even if there are no indicator samples available.

b. Fish and One sample of rock fish (family DCM and 7C2 Quarterly Gamma isotopic 4 Required Invertebrates Sebastes) and one sample of (grab sample) analysis on perch (family Embiotocidae) edible portions of each sample.One sample of rock fish PON and POS Quarterly Gamma isotopic 4 Supplemental (family Sebastes) and (grab sample) analysis on one sample of perch edible portions (family Embiotocidae) of each sample.One sample of mussel DCM and 7C2 Quarterly Gamma isotopic 4 Required (family Mytilus) (grab sample) analysis on edible portions of each sample.One sample of mussel PON Annual Gamma isotopic 4 Supplemental (family Mytilus) (grab sample) analysis on edible portions of each sample.One sample of mussel POS Quarterly Gamma isotopic 4 Supplemental (family Mytilus) (grab sample) analysis on edible portions of each sample.One sample of locally harvested 7D3 OR 2F1 Quarterly Gamma isotopic 4 Supplemental market fish. (should (grab sample) analysis on alternate edible portions between of each sample.locations) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 S 0 0 0 0 0 0 0 0 S 0 0 0 0 0 0 0 0 S 0 S 0 Table 2.1 (continued)

Exposure Pathway Number of Representative Sampling Collection Type of Required or and/or Sample Type Samples and Sample Stations Frequency Analysis Supplemental Locations'

c. Broadleaf Three samples of broadleaf Monthly Gamma isotopic 4 Required Vegetations vegetation grown nearest (when available) analysis (that (see notation #5)off-site locations of highest includes 1-131)calculated annual average on edible ground level D/Q IF milk portion.sampling is not performed.

One sample of each of the Monthly Gamma isotopic 4 Required similar broadleaf vegetation (when available) analysis (that (see notation #5)grown 15 to 30 km distant in the includes 1-131)least prevalent wind direction IF on edible milk sampling is not performed.

portion.d. Vegetative One sample of broadleaf 5F2, 7C1,and Monthly Gamma isotopic 4 Supplemental Crops vegetation or vegetables or fruit 7G1 (when available) analysis on edible portion.One sample of broadleaf 3C1, 6C1 Quarterly Gamma isotopic 4 Supplemental vegetation or vegetables or fruit. (when available) analysis on edible portion.e. Meat sample One sample of each species BCM, BGM, Quarterly Gamma isotopic 4 Supplemental (cow, goat, sheep, deer, or pig) BSM, JDM, (as available and analysis, and of edible meat portion JPM, ACM, provided by land Total Sr on slaughtered for personal ADM, APM owners within 8 edible portion.consumption (not mass market). km of plant site)Table Notations 1. Deviations are permitted from the required sampling schedule if specimens are unobtainable due to circumstances such as hazardous conditions, seasonal unavailability, malfunction of automatic sampling equipment and other legitimate reasons.If specimens are unobtainable due to sampling equipment malfunction, effort shall be made to complete corrective action prior to the end of the next sampling period. All deviations from the sampling schedule shall be documented in the Annual Radiological Environmental Operating Report. It is recognized that, at times, it may not be possible or practicable to continue to obtain samples of the media of choice at the most desired location or time. In these instances, suitable specific alternative media and locations may be chosen for the particular pathway in question and appropriate substitutions made within 30 days in the Radiological Environmental Monitoring Program, and submitted in the next Annual Radioactive Effluent Release Report, including a revised figure(s) and table for the ERMP reflecting the new location(s) with supporting information identifying the cause of the unavailability of samples for that pathway and justifying the section of the new location(s) for obtaining samples.2. For the purposes of this table, a thermoluminescent dosimeter (TLD) is considered to be one phosphor.

There are normally three calcium sulfate phosphors in an environmental TLD BADGE. Film badges shall not be used as dosimeters for measuring direct radiation.

3. Airborne particulate sample filters shall be analyzed for gross beta radioactivity 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months or more after sampling to allow for radon and thoron daughter decay. If gross beta activity in air particulate samples is greater than 10 times the yearly mean of control samples, gamma isotopic analysis shall be performed on the individual samples.4. Gamma isotopic analysis means the identification and quantification of gamma-emitting radionuclides that may be attributable to the effluents from the facility.5. If broadleaf vegetation food products are unavailable, additional air sampling as specified in Table 2.1, Parts 2 & 3 will be done in the SE (Station 8S2) and NNW (station ISI) sectors.6. The Branch Technical Position (Nov 79) states, "Any location from which milk can no longer be obtained may be dropped from the surveillance program after notifying the NRC in writing that they are no longer obtainable at that location".

Although milk sampling performed at 5F2 is outside the 5-mile radius and is supplemental to the REMP, this notification should take place if 5F2 milk sampling ceases.

TABLE 2.2 Distances and Directions to Environmental Monitoring Stations Radial Direction**

Radial Distance**

Station (True Heading) From Plant Code(a) Station Name Degrees km Miles 0S1 Exclusion Fence-Northwest Comer 320 0.16 0.1 0S2 North Gate 320 0.8 0.5 iSi Wastewater Pond 330 0.64 0.4 2S1 Back Road-300 m North of Plant 0 0.32 0.2 3S1 Road NW of 230 kV Switchyard 23 0.64 0.4 4S1 Back Road Between Switchyards 43 0.8 0.5 5S1 500 kV Switchyard 58 0.64 0.4 5S2 Diablo Creek Weir 65 0.96 0.6 5S3 Microwave Tower Road 70 1.02 0.7 6S1 Microwave Tower 94 0.8 0.5 7S1 Overlook Road 112 0.48 0.3 8S1 Target Range 125 0.8 0.5 8S2 Southwest Site Boundary 128 1.76 1.1 8S3 DCSF 96-1 well 145 0.52 0.33 9S1 South Cove 167 0.64 0.4 MTl Meteorological Tower 185 0.32 0.2 DCM Diablo Cove Marine 270 0.32 0.2 WN 1 Northwest Guard Shack 290 0.32 0.2 WN2 Diablo Creek Outlet 283 0.25 0.15 1Al Crowbar Canyon 327 2.56 1.6 1A2 Blanchard Spring 331 2.4 1.5 OBI Point Buchon 325 5.76 3.6 ICI Montana de Oro Campground 336 7.52 4.7 3C 1 Ranch Vegetation 20 7.16 4.5 4C1 Clark Valley Gravel Pit 45 9.28 5.8 5CI Junction Prefumo/See Canyon Roads 64 7.52 4.7 6C 1 Household Garden 98 7.24 4.5 7C1 Pecho Creek Ruins (Mello Farm) 120 6.56 4.1 7C2 Rattlesnake Canyon 124 7.52 4.7 2D1 Sunnyside School 10 11.04 6.9 3D1 Clark Valley 24 9.92 6.2 4D1 Los Osos Valley Road 36 12.16 7.6 6D1 Junction See/Davis Canyon Roads 89 13.4 8.3 7D1 Avila Gate 118 10.56 6.6 7D2 Avila Beach 110 12.16 7.6 7D3 Avila Pier 120 11.0 6.9 2F1 Morro Bay (Commercial Landing) 0 17.44 10.9 5F1 SLO OEL 79 16.41 10.2 5F2 Cal Poly Farm 60 20.16 12.6 5F3 SLO County Health Department 70 20.32 12.7 7F1 Shell Beach 110 17.28 10.8 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 S 0 Table 2.2 (continued)

Radial Direction**

Radial Distance**

Station (True Heading) From Plant Code(a) Station Name Degrees km Miles 7G1 Arroyo Grande (Kawaoka Farm) 115 26.88 16.8 7G2 Oceano Substation 118 27.68 17.3 AVA Avila Beach (near pier) 109 11.75 7.3 CBA Cambria Moonstone Beach 330 45.86 28.5 CYA Cayucos Beach (near pier) 350 26.87 16.7 DY1 Drywell 115' 77 0.041 0.026 DW 1 Drinking Water (Plant Potable Water Sys)161 0.59 0.37 IS1-IS8 ISFSI 65 0.48 0.3 MDO Montana de Oro (Spooners Cove) 336 7.56 4.7 OWl Observation Well 01 336 0.07 0.046 OW2 Observation Well 02 157 0.07 0.045 OEL Offsite Emergency Lab 79 16.41 10.2 OUT Plant Outfall 270 0.32 0.2 PMO Pismo Beach (near pier) 113 20.76 12.9 PON Pacific Ocean North of Diablo Cove 305 2.4 1.5 POS Pacific Ocean South of Diablo Cove 180 0.64 0.4 WW2 Water Well 02 70 1.02 0.63 BCM Blanchard Farm (Cow Meat)BGM Blanchard Farm (Goat Meat)BSM Blanchard Farm (Sheep Meat)JDM Johe Property (Deer Meat)*The reference point used is the dome of Unit I containment.

Station Code (XYZ): X -First number (0-9) represents the radial sector in which the station is located: 0 -Northwest 5 -East-northeast I -North-northwest 6 -East 2 -North 7 -East-southeast 3 -North-northeast 8 -Southeast 4 -Northeast 9 -South-southeast Y -Letter (S, A-H) represents the distance from the plant: S -On-site A 2 miles from plant (but off-site)B 4 miles from plant C 6 miles from plant D 8 miles from plant E 10 miles from plant F 15 miles from plant G 20 miles from plant H -Greater than 20 miles from plant Z -Second number represents the station number within the zone.

0 0 0 0 Table 2.2 (continued) 0 0*Station Codes exceptions:

The following stations do not follow the coding system:* Diablo Cove Marine (DCM)* Meteorological Tower (MT1)" Northwest guard shack (WN1)* Diablo Creek outlet (WN2)" Pacific Ocean North (PON)" Pacific Ocean South (POS)* Offsite Emergency Lab (OEL)* Plant outfall (OUT)* Drinking water (DW1)* Water Well 02 (WW2)* Observation Well 01 (OWl)* Observation Well 02 (OW2)* Drywell 115 (DY1)" Avila Beach (AVA)* Montana de Oro -Spooners Cove (MDO)* Pismo Beach (PMO)" Cayucos Beach (CYA)" Cambria Moonstone Beach (CBA)* Blanchard Cow Meat (BCM)* Blanchard Goat Meat (BGM)" Blanchard Sheep Meat (BSM)* Johe Deer Meat (JDM)* Johe Pig Meat (JPM) 0* Andre Cow Meat (ACM)" Andre Deer Meat (ADM)* Andre Pig Meat (APM)* ISFSI TLDs (ISI -IS8)0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 S 0 0 0 S 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TABLE 2.3: Detection Capabilities for Environmental Sample Analysis ()(2)Lower Limits of Detection (LLD) (3)Airborne Water Particulate or Fish (nCi/kg. wet)Food Milk Products Sediment (nCi/kg. drvy Gross beta 4 0.01 H-3 400 Mn-54 15 130 Fe-59 30 260 Co-58, 60 15 130 Zn-65 30 260 Zr-Nb-95 15 Total Sr 1 1 500 2,000 1-131 1* 0.07 1 60 Cs- 134 15 0.05 130 15 60 150 Cs-137 18 0.06 150 18 80 180 Ba-La-140 15 15 Table Notations (1) This list does not mean that only these nuclides are to be considered.

Other peaks that are identifiable, together with those of the above nuclides, shall also be analyzed and reported in the Annual Radiological Environmental Operating Report.(2) Required detection capabilities for thermoluminescent dosimeters used for environmental measurements shall be in accordance with the recommendations of Regulatory Guide 4.13, Revision 1, July 1977.(3) The LLD is defined, for purposes of these specifications, as the smallest concentration of radioactive material in a sample that will yield a net count, above system background, that will be detected with 95 percent probability with only 5 percent probability of falsely concluding that a blank observation represents a "real" signal.* If no drinking water pathway exists, a value of 15 pCi/L may be used.

0 0 0 0 TABLE 2.3 (Continued)

Table Notations For a particular measurement system, which may include radiochemical separation:

LLD =4.66Sb E x V x 2.22 x Y x exp(-Xt)Where: LLD = the "a priori" the lower limit of detection as defined above (as pCi per unit mass or volume)Sb = the standard deviation of the background counting rate or of the counting rate of a blank sample as appropriate (as counts per minute)E = the counting efficiency (as counts per transformation)

V = the sample size (in units of mass or volume)2.22 = the number of transformations per minute per pico-curie Y = the fractional radiochemical yield (when applicable)

X = the radioactive decay constant for the particular radionuclide t = the elapsed time between sample collection (or end of the sample collection period) and time of counting The value of Sb used in the calculation of the LLD for a detection system will be based on the actual observed variance of the background counting rate or of the counting rate of the blank samples (as appropriate) rather than on an unverified theoretically predicted variance.

In calculating the LLD for a radionuclide determined by gamma-ray spectrometry, the background will include the typical contributions of other radionuclides normally present in the samples (e.g., potassium-40 in milk samples).Analyses will be performed in such a manner that the stated LLDs will be achieved under routine conditions.

Occasionally background fluctuations, unavoidably small sample sizes, the presence of interfering nuclides, or other uncontrollable circumstances may render these LLDs unachievable.

In such cases, the contributing factors will be identified and described in the Annual Environmental Radiological Operating Report.Typical values of E, V, Y and t should be used in the calculation.

It should be recognized that the LLD is defined as a priori (before the fact) limit representing the capability of a measurement system and not as a posteriori (after the fact) limit for a particular measurement.

0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 S 0 0 S 0 0 0 0 0 S 0 TABLE 2.4: Reporting Levels for Radioactivity Concentrations in Environmental Samples Water Analysis (pCi/L)Airborne Particulate or Gases (pCi/m 3)Fish (pCi/kg, wet)Milk (pCi/L)Food Products (pCi/kg, wet)H-3

20,000 Mn-54 1,000 30,000 Fe-59 400 10,000 Co-58 1,000 30,000 Co-60 300 10,000 Zn-65 300 20,000 Sr-89 20 Sr-90/Y-90 8 Zr-Nb-95 400 1-131 ** 2 0.9 3 100 Cs- 134 30 10 1,000 60 1,000 Cs- 137 50 20 2,000 70 2,000 Ba-La-140 200 300 For drinking water samples. This is the 40 CFR 141 value. If no drinking water pathway exists, a value of 30,000 pCi/L may be used.*** If no drinking water pathway exists, a value of 20 pCi/L may be used 0 0 0 0 0 0 0 0 S 0 0 0 0 0 0* Figure 2.1- Diablo Canyon Off-site Stations 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 S 0 0 S S 0 0 0 0 0 0 0 0 0 0 0 S 0 0 0 Pacific Ocean 5 Mile SE N 0 5 miles I I I I I I LEGEND A Dosimetry Station[I Air Particulate Station* Biological Sampling Station* Diablo Canyon Power Plant Units 1 and 2 Diablo Canyon off-site stations.

0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 C Figure 2.2- Diablo Canyon On-site Stations 0 C 0 0 0 S C C 0 0 C 0 C 0 0 C 0 0 C C C 0 C 0 0 0 0 S 0 S S 0 S S* .S S0 owave I IS-"'"'"'°' Microwave PRTR DCM" 0 Site B 6S1&MtiBulilding M et Stto E S1,-*OO ~~Intake Area It-W11 9S1 0 ~ ~POS'O Breakwtater

+'S S CPOst RPSain S S S S S S* CPOst RPSain S S S 0 0 0 0 0 S 0 S 0 S S S S S S S 0 S S 5 Figure 2.3- Diablo Canyon Station Locations S S S S S S S S S S S S S S S S S S S S S S S S S S Diablo Canyon Stations A Dosimetry Sectors* Dosimetry

&Air -Protected Area* Biological Ste Boundary S* 3.0 RADIOLOGICAL DATA-

SUMMARY

OF TABLES This section summarizes the analytical results of the environmental samples, which were collected during the monitoring period. The results, shown in Appendix A, are presented in a format similar to that*prescribed in the NRC's Radiological Assessment Branch Technical Position on Environmental Monitoring.

The results are ordered by sample media type and then by radionuclide.

Each table is nuclide specific, and the total number of analyses for that radionuclide during the monitoring period, are provided.

Additionally, the number of measurements which exceeded the Reporting Levels (NRC Notification Level) found in Table 2.4 of this report are provided.

The first column lists the matrix or 0pathway sampled during the period. The second column lists the nuclides analyzed and number of samples*performed.

The third column provides the required Lower Limit of Detection (LLD) for radionuclides that have detection capability requirements as specified in Table 2.3 of this report. The sixth and seventh Scolumns contain the mean and average results for locations.

The eighth column contains the number for reportable occurrences for the location pathway. Occasionally, the required LLD is not met. An example of this occurrence might be due to hold times between sampling and analysis.

Such cases, if any, are*addressed in Section 4.0 of this report Additionally, the tables of Appendix A provide the mean of all sample results analyzed for the specified radionuclide/

media type, the range, and the number of samples that were considered to have detectable activity of all the samples counted.* The mean value consists of the average of detectable concentrations.

S* The lowest and highest detected concentration values.S 0 The number of detectable measurements and the total number of measurements.

For example, (4/20) would indicate that 4 of the 20 samples collected, for that sample type and that Sradionuclide, contained detectable radioactivity.

S 5A sample is considered to yield a "detectable measurement" when the concentration exceeds three times its associated standard deviation.

5The radionuclides reported in this section represent those that:*1) had an LLD requirement in Table 2.3 of this report, or a Reporting Level listed in Table 2.4 02) were of specific interest for any other reason The radionuclides routinely analyzed and reported for a gamma spectroscopy analysis are: Ac-228, Ag-*1 10m, Be-7, K-40, Ce-144, Co-57, Co-58, Co-60, Cr-51, 1-131, Cs-134, Cs-137, Ba-140, La-140, Fe-59, Mn-54, Nb-95, Ru-103, Rh-106, Sb-124, Sb-125, Zn-65, and Zr-95.SData from direct radiation measurements made by TLD are also provided in Appendix A in a similar format*described above. Actual quarterly TLD results are listed in Appendix B.S S 0 S S 0 S 0 4.0 ANALYSIS OF ENVIRONMENTAL RESULTS 4.1 REMP Sampling Variance / Deviations The DCPP Radiological Environmental Monitoring Program allows for deviations in the REMP sampling schedule "if samples are unobtainable due to hazardous conditions, seasonal unavailability, or malfunction of sampling equipment." Such deviations do not compromise the program's effectiveness and are normally anticipated for any radiological environmental monitoring program.The DCPP REMP includes both required and supplemental samples. This section describes the variances with the required samples and describes some of the supplemental sampling during the year.0 DIRECT RADIATION There were no abnormal affects to the station TLD readouts.AIRBORNE RADIOACTIVITY The mean percent availability for all on-site and off-site air samplers was 99.5 percent. This means, on average, all air samplers were up and running 99.5 percent of the time. The remaining 0.5 percent can be attributed to equipment problems, filter exchange, and calibration processes.

Approximately 59.6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months of air sampler lost run time occurred at stations 0S2 from 3-17-10 to 3-24-10 due to air sample pump equipment failure.Approximately 163 hours0.00189 days 0.0453 hours 2.695106e-4 weeks 6.20215e-5 months of air sampler lost run time occurred at station 0S2 from 3-24-10 to 3-31-10 due to an automatic factory preset pump down power function.

A new pump was placed at 0S2 on 3-24-10, however the technician did not ensure the factory preset was disabled.Therefore, the new pump turned itself off after 5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months of runtime.0 Approximately 51 hours5.902778e-4 days 0.0142 hours 8.43254e-5 weeks 1.94055e-5 months of air sampler lost run time occurred at station 1S 1 from 5-5-10 to 5-12-10 due to equipment malfunction.

Approximately 163 hours0.00189 days 0.0453 hours 2.695106e-4 weeks 6.20215e-5 months of air sampler lost run time occurred at station 1S I from 5-12-10 to 5-19-10 due to an automatic factory preset pump down power function.

A new pump was placed 0 at 1 2 on 5-12-10, however the technician did not ensure the factory preset was disabled.Therefore, the new pump turned itself off after 5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months of runtime. This was the second occurrence of a factory pre-set down power of a new air sample pump. The REMP air sampling procedure was revised to ensure factory pre-sets are disabled.MARINE SAMPLES All marine samples were collected as scheduled (including allowable variation).

The California Department of Fish and Game has issued regulations prohibiting the collection of abalone along the central and southern coast of California.

PG&E considers is unlikely that collection of abalone will be allowed in the DCPP environs in the near future. The REMP has therefore ceased routine abalone sampling.

Note that the sampling of abalone was previously performed and was supplemental to the REMP.0 0 0 0 0 S 0 TERRESTRIAL SAMPLES All terrestrial samples were collected as scheduled (including allowable variation) with the exception of the August vegetation sample from REMP station 7C 1. No vegetation was available t* at 7C 1 during August of 2010. It should be noted that this vegetation sample is supplemental to the REMP.5First, second, and third quarter 3C 1 vegetation samples were not provided by the landowner in 2010.*OCEAN SURFACE WATER, DRINKING WATER, AND GROUNDWATER SAMPLES All water samples were collected as scheduled (including allowable variation).

REPLICATE SAMPLES*Replicate sampling is conducted within the REMP for program strength and correlation.

Replicate samples were taken from 5F2 Vegetation (March), 5F2 Milk (March and May), DY I(March), OW l (March), OW2 (March), and OEL Drinking Water (September).

The results of the analyses were within expected correlation.

4.2 COMPARISON OF ACHIEVED LLDS WITH REQUIREMENTS For each analysis having an LLD requirement, criteria for the calculated "a priori" (before the fact) LLD were met during the sampling and analysis process. Meeting these process criteria satisfies the "a priori" LLD requirements.

The "a posteriori'" (after the fact) Minimum Detectable Concentration (MDC) for that analysis was also compared with the required "a priori " (before the fact) LLD.Table 2.3 of this report gives the required "a priori" Lower Limits of Detection (LLDs) for 0environmental sample analyses required by the DCPP Radiological Environmental Monitoring 5Program.

Occasionally an LLD is not achievable due to situations, such as hold times between sampling and analysis.

In such a case, a discussion of the situation is provided.Air sampling station 0S2 during the week of 3-24-10 did not meet the particulate nor iodine cartridge a-priori LLDs due to the amount of lost runtime for that week. Air sampling station 1S I*during the week of 5-12-10 did not meet the particulate nor iodine cartridge a-priori LLDs due to the amount of lost runtime for that week. Approximately 163 hours0.00189 days 0.0453 hours 2.695106e-4 weeks 6.20215e-5 months of air sampler lost run time occurred at stations 0S2 and 1S I due to an automatic factory preset pump down power function.*Therefore, minimum sample volumes to achieve a-priori LLDs were not obtained for 0S2 during* the week of 3-24-10 or for ISI during the week of 5-12-10.S All other REMP samples analyzed met the specific "a-priori" LLD requirements in 2010.54.3 COMPARISON OF RESULTS AGAINST REMP REPORTING LEVELS Notification is required whenever a Reporting Level in Table 2.4 of this document is exceeded.Reporting Levels are the environmental concentrations that relate to the ALARA design dose objectives of 10 CFR 50, Appendix I. It should be noted that environmental concentrations are averaged over calendar quarters for the purposes of this comparison, and that Reporting Levels 5apply only to measured levels of radioactivity due to DCPP plant related effluents.

No REMP Reporting Levels were exceeded during this monitoring period.0 S S S S 4.4 DATA ANALYSIS BY MEDIA TYPE The REMP data for each media type is discussed below. A sample is considered to yield a"detectable measurement" when the concentration exceeds three times its associated standard deviation.

4.4.1 Direct Radiation Direct radiation is continuously measured at 31 locations surrounding DCPP using thermoluminescent dosimeters (TLDs). These 31 locations are made up of 29 indicator stations &2 control stations.

These dosimeters are collected every calendar quarter for readout at the DCPP TLD Lab. The results are trended with preoperational and historical operating values for adverse trends. No adverse trends were noted in 2010 as indicated by the graph that follows.0 Direct radiation is also continuously measured at 8 locations surrounding the Independent Spent Fuel Storage Installation (ISFSI) using thermoluminescent dosimeters (TLDs). These 8 locations are located directly adjacent to the ISFSI protected area, with 2 stations on each of the four sides of the ISFSI pad. It should be noted that these stations and the ISFSI are well within the site boundary.

These dosimeters are collected every calendar quarter for readout at the DCPP TLD Lab. The first spent fuel canister was loaded onto the ISFSI pad in June 2009. The small increase in radiation levels at the ISFSI pad prior to spent fuel canister load was due to storage of Radioactive Material (RAM) equipment in seatrains at the ISFSI pad prior to an outage. These seatrains of RAM were removed prior to the first load of spent fuel canisters.

In May 2010, DCPP began the second ISFSI loading of spent fuel canisters.

This second loading of spent fuel canisters is the reason for the increase in ISFSI TLD readings in mid 2010. No adverse trends were noted at the DCPP inner ring stations due to ISFSI for 2010 as indicated by the graphs that follow. It should be noted that the DCPP inner ring TLD results tracked in correlation with normal Environmental TLD outer ring, special interest, and control location fluctuations.

It should also be noted that DCPP inner ring TLD results remain within pre-operational ranges.0 0 S 0 0 0 0 S 0 0 0 0 0 0 0 0 0 0 0 0 0 S 0 0 S 0 0 0 0 0 Trending Of TLD Direct Radiation Results........ Im .... ... ..........

..30.0 25.0-Inner Ring Stations-Outer Ring Stations Special Interest Stations-o- Control Stations 20.0 Inner Ring Stations -OSl, WN10, S2, 1S1, 2S1. 3S1. 4S1. 5S1, 5S3,6S1, 7S1, 8S1. 8S2, 9S1. and MT1 Outer Ring Stations -WA. OB, 0 1C1.201, 3D1, 4C1, SC1. 601. and 7C1-15.0 E Special Interest Stations -7F1, 701, 7D2, 7G2, and 5F3 Control Stations -4D1 and 5F1 ISFSI Stations -IS1, IS2, IS3, IS4, IS5, 6S6, IS7. & IS8 10.0 5.0 0.0 " 1980 1985 1990 1995 2000 2005 2010 2015 2020 Year 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 ISFSI TLD Stations 550-ISFSI Stations I ISFS1 St.ficn. -ISI. IS2. 1S3, IS4. SS.1S6. 1S7. & IS8 I 2005 2010 2015 2020 2025 2030 Year 2035 S 0 4.4.2 Airborne Air particulate and radioiodine samples were collected weekly from six indicator stations (MT 1, 0S2, IS1, 7D1, 8S1, and 8S2) in the DCPP environs and one control station (5F1). A total of 364 air particulate filters and 364 iodine cartridges were collected and analyzed.

The data collected for the air-sampling program is summarized in Appendix A.Gross beta activity was detected in almost every weekly air particulate sample collected from all indicator and control stations.

Comparison of the data showed that the mean values of gross beta activities for the indicator stations were consistent with those obtained for the control station and historical trending.

Normal background gross beta values range from 2E-3 to 9E-2 pCi/m3. The gross beta activities detected at the air sampling stations are tabulated in Appendix A.Gamma isotopic analyses were performed on quarterly composites of the air particulate filters from each station. All samples collected during the monitoring period contained only naturally occurring radioactivity.

A total of 364 iodine cartridges were analyzed for iodine-131.

Iodine-131 was detected at control station 5F1 in San Luis Obispo (10 miles from DCPP) during the weeks of 3-17-10 and 3-24-10 in concentrations from 1.5E-2 pCi/m3 to 3.3E-2 pCi/m3. At this same time period, no other REMP air sample station detected 1-131. An evaluation was conducted by DCPP and the California Dept of Public Health was notified of the abnormal event. DCPP could not identify the source of 1-131 but concluded the most likely source was due to medical isotopes.No Iodine-131 was detected in any of the remaining station iodine cartridges during 2010.S 4.4.3 Drinking Water, Ocean Surface Water, and Groundwater Drinking Water Drinking water samples were collected from stations DWI, 5S2, WN2, 1A2, and OEL (control location).

The samples were analyzed for gamma emitters, gross beta, tritium, Total Strontium, Iron-55, and Nickle-63.

Of all other samples collected during the monitoring period, no plant related radionuclides were detected in any of the samples.Ocean Surface Water l Ocean surface water samples were collected monthly from stations OUT, DCM, and at 7C2 (control location).

The samples were analyzed for gamma emitters, gross beta, tritium, Total Strontium, Iron-55, and Nickle-63.

No plant related radionuclides were detected in any of the samples.The results of the water samples collected from both the indicator and control stations are summarized in Appendix A.Groundwater As part of the nuclear industry NEI 07-07 Groundwater Protection Initiative (GPI), DCPP began sampling various water sources in 2006. These sources included onsite monitoring wells (OW 1, OW2, DYI, & 8S3), an aquifer well (WW2), a creek (5S2 & WN2), and a water spring (1A2).S Two groundwater aquifer wells are available within the plant site boundary; Water Well 01 and Water Well 02. These wells are located about 115' above and to the east of the power block.S S S o S 0 0 0 0* Water Well 01 is abandoned and the well pump is inoperable.

Water Well 02 was sampled and only naturally occurring isotopes were detected.One shallow (approximately 70 feet deep) subsurface monitoring well is located Southeast at* approximately 0.3 miles from the power block. This monitoring well is labeled DCS96-1 (8S3).One tritium result indicated 325 pCi/Liter in November which is consistent with rain washout concentrations.

The minimum detectable concentration for that sample was 208 pCi/Liter, so it* was slightly above the detection limit. No other tritium or plant related isotopes were found in the 8S3 monitoring well during 2010.Stations 5S2, WN2, and 1A2 are discussed in the previous Drinking Water paragraph of Section* 4.4.3.Three shallow (approximately 37 to 73 feet deep) subsurface monitoring wells are located within the plant protected area and in close proximity to the containment structures, spent fuel pools, and auxiliary building (plant power block). These monitoring wells are labeled Observation Well 01* (OW 1), Observation Well 02 (OW2), and Drywell 115 (DY1). Due to rainwater washout of gaseous tritium exiting the plant vent system (approved discharge path), these monitoring wells contained low levels of tritium throughout 2010. All three of these monitoring wells were below 0 the maximum concentration level (MCL) established by the U.S. Environmental Protection

Agency (EPA) for tritium (20,000 picocuries per liter). Further reporting of these monitoring wells is provided in Section 5.2 of this report.4.4.4 Ingestion Marine Biological Samples Fish samples were collected quarterly from stations DCM, 7C2 (control), PON, POS, and a local 0 market (7D3 or 2F1). Mussels were collected quarterly from stations DCM, 7C2, and POS. Mussels were collected annually from station PON. A summary of these samples (required and* supplemental) is described in Table 2.1. A summary of sample results is provided in Appendix A.Marine fish and mussel samples did not detect any DCPP related radionuclides during 2010.0 Marine Aquatic Vegetation Supplemental marine aquatic kelp sampling was performed quarterly at REMP sample stations* DCM, PON, POS, and 7C2 (control).

No DCPP related isotopes were detected in 2010.Supplemental intertidal algae sampling was performed quarterly at REMP sample stations DCM*0 and 7C2 (control).

No DCPP related isotopes were detected in 2010.Each sample was analyzed for gamma emitting radionuclides.

A summary of the sample results is* provided in Appendix A.

S Ocean Sediment and Recreational Beach Sampling 0 Ocean sediment samples were collected annually from stations DCM and 7C2. Gamma Spec, Total Strontium, Iron-55, and Nickle-63 were analyzed.Supplemental recreational beach sand samples were collected from stations Avila Beach (AVA), Montana de Oro Spooner's Cove (MDO), Pismo Pier Beach (PMO), Cayucos Morro Strand State Beach (CYA), and Cambria Moonstone Beach (CBA). Each sample was analyzed for gamma emitting radionuclides.

Total Strontium, Iron-55, and Nickle-63.

Only naturally occurring isotopes where detected in the ocean sediment and recreational beach sand samples collected for 2010.4.4.5 Food Crops (Vegetation)

Samples of broad leaf vegetation were collected monthly (when available) from two indicator stations (7C1 and 7G1), and one control location (51F2). Samples were collected quarterly from a residence garden at station 6C 1. Samples were collected during the fourth quarter of 2010 from a garden at station 3C1. The samples were analyzed for gamma emitting radionuclides and for Iodine- 131 on edible portions.The results for these samples did not detect any DCPP related radionuclides.

A summary of the sample results are provided in Appendix A.4.4.6 Milk There are no milking animals in the vicinity of the plant. In cases where milk sampling is not available, the REMP program permits the collection of broad leaf vegetation from three sample locations in place of milk. Since broadleaf sampling is also not available in the DCPP environs, the DCPP REMP requires additional air sampling at stations 8S2 and IS I.Supplemental samples of milk were collected monthly from Cal Poly Farm (station 5F2). The samples were analyzed for gamma emitting radionuclides, Iodine- 131, and Total Strontium.

Milk samples were collected monthly from station 5F2 regardless of the availability of milk stations within 5 miles of the plant.The results of the milk sampling did not detect any DCPP related radionuclides.

A summary of the sample results are provided in Appendix A.4.4.7 Meat Products 5 Meat products are collected quarterly (when available and provided) from landowners.

Samples of livestock meat were collected from the Blanchard Ranch in 2010. These samples were Blanchard cow meat (BCM), Blanchard sheep meat (BSM), and Blanchard goat meat (BGM).No wild deer or wild pig meat samples were supplied by landowners in 2010.A summary of the sample results are provided in Appendix A.Only naturally occurring Potassium-40 was detected in these samples, no DCPP related radionuclides were detected.S S S S S S 0 0 0 0 0 5.0 GROUND WATER MONITORING Diablo Canyon is committed to improving management of situations involving inadvertent radiological releases that get into onsite groundwater that is or may be used as a source of drinking water.This commitment reflects the nuclear industry's high standard of public radiation safety and protection of the environment.

Trust and confidence on the part of local communities, States, the NRC, and the public is paramount to this commitment.

Studies of the DCPP ISFSI site and a general assessment of sub-regional hydro-geologic conditions indicates that groundwater (subsurface) flow beneath the Diablo Canyon power block site is 0 west toward the Pacific Ocean or northwest toward Diablo Creek. It should be noted that Diablo Creek also discharges into the Pacific Ocean.* 5.1 NEI 07-07 GROUNDWATER PROTECTION INITIATIVE VOLUNTARY REPORTING* 5.1.1 NEI 07-07 Objective 2.4, Annual Reporting:

Document all on-site ground water sample results and a description of any significant on-site leaks/spills into ground water for each calendar year in the AREOR or the ARERR* DCPP Response to NEI 07-07 Objective 2.4 Onsite groundwater monitoring points are described in the REMP and reported in this Annual* Radiological Environmental Operating Report (AREOR) as follows: S Observation Well 01 (OW 1), Observation Well 02 (OW2), Drywell 115 (DY1), DCSF96-1 (8S3),* Water Well 02 (WW2), and Diablo Creek Outlet (WN2) were used for data reporting.

A* summary of the sample results are provided in Appendix A and Appendix C.S DCPP REMP sampled all available groundwater regardless of present or future use. The ground* water beneath the DCPP protected area is not used as a source of drinking water.There were no significant onsite leaks/spills into groundwater in 2010.Note: the term "significant" is defined by the NEI Initiative as an item or incident that is of 0 interest to the public or stakeholders.

It does not imply or refer to regulatory terminology nor is it intended to indicate that the leak or spill has public health and safety or environmental protection consequences.

This term also has a volume component of greater than 100 gallons.

0 0 5.1.2 NEI 07-07 Objective 2.4 c, Annual Reporting:

2.4.c. i : A description of all spills or leaks that were communicated per GPI Objective 2.2 acceptance criterion a shall be included in the Annual Radiological Effluents Release Report (ARERR).2.4.c.ii : All onsite or off-site ground water sample results that exceeded the REMP reporting thresholds as described in the ODCM that were communicated per GPI Objective 2.2 acceptance criterion b shall be included in the ARERR.DCPP Response to NEI 07-07 Objective 2.4 c 0 Beginning with this 2010 annual report, the above GPI Section 2.4.c reporting has been moved over to the Annual Radiological Effluents Release Report (ARERR).5.2 ADDITIONAL GROUNDWATER SAMPLING OVERVIEW: Ground water monitoring is reported in accordance with the nuclear industry NEI 07-07 Groundwater Protection Initiative and the REMP. Concentrations of tritium were detected in three monitoring wells beneath the DCPP power block. This tritium is coming from the rain-washout of gaseous tritium exiting the plant vent system via an approved discharge route. It should be noted that hydro geological studies of the DCPP site indicate that any groundwater (subsurface) flow beneath DCPP would flow toward the Pacific Ocean.The specific ranges of tritium detected in these monitoring well samples for 2010 are as follows: Observation Well 01 ( 1,280 -2,120 pCi/L ) of 5 samples collected for tritium analysis.Observation Well 02 ( 1,140 -1,540 pCi/L ) of 5 samples collected for tritium analysis.Drywell 115 ( 5,740 -7,670 pCi/L ) of 5 samples collected for tritium analysis.No other DCPP related isotopes were detected.0 Monitoring Well 8S3 was sampled 4 times in 2010. One of the samples indicated 325 pCi/L of tritium which was slightly above the MDC of 208 pCi/L. This concentration of tritium is consistent with rain washout concentrations.

The other three 8S3 tritium samples were < MDC. No other DCPP related isotopes were detected.All other samples of groundwater at WW2 and WN2 did not indicate the presence of tritium or any other DCPP related isotopes (only naturally occurring radionuclides were observed).

0 0 0 0 0 0 0 0 0 0 0* 6.0 OLD STEAM GENERATOR STORAGE FACILITY MONITORING

In accordance with the DCPP Offsite Dose Calculation Manual (ODCM), the Old Steam Generator Storage Facility (OSGSF) sumps were inspected quarterly.

If water was found in the sump of a vault containing plant equipment, the expectation was to sample that sump water and dispose of the water 0per plant protocols.

0 On 3-2-08, the DCPP Unit Two (U-2) Steam Generators were replaced and the old U-2 Steam 0Generators (4 total) were stored onsite within the Old Steam Generator Storage Facility (OSGSF)mausoleum.

On 2-14-09, the DCPP Unit One (U-1) Steam Generators were replaced and the old U-I Steam 0Generators (4 total) were stored onsite within the OSGSF mausoleum.

On 11-6-09, the DCPP Unit Two (U-2) Reactor (Rx) Head was replaced and the old U-2 Rx Head was stored onsite within the OSGSF mausoleum.

On 10-23-10, the DCPP Unit One (U-i) Rx Head was replaced and the old U-I Rx Head was stored onsite within the OSGSF mausoleum.

As of 12-31-10, the OSGSF contains eight old Steam Generators and two old Rx Heads.0 The OSGSF building sumps were inspected quarterly by the REMP. Rainwater was found in the U-2 Old Steam Generator vault # 30 sump. This rainwater had tritium concentrations consistent with*rainwater washout concentrations at < 1,000 pCi/Liter.

The rainwater from the sump was removed and processed via an approved radwaste discharge pathway.0 S 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 o 0 0 S 0 0 0 0 S 0 0 0 0 07.CRSCHCPRGA 0 0 .RS HC RGA 0 0 0 0 0 0 0 0 S 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 S 0 0 0 0 0 0 LB Laboratories LLC 2010 ANNUAL QUALITY ASSURANCE REPORT FOR THE RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM (REMP)JANUARY 2010 -DECEMBER 2010 GEL LABORATORIES, LLC P.O. Box 30712, Charleston, SC 29417 843.556.8171 Laboratories LLC P.O. Box 30712, Charleston, SC 29417 2010 ANNUAL QUALITY ASSURANCE REPORT 0 0 0 0 0 Page 2 of 51 2010 ANNUAL QUALITY ASSURANCE REPORT FOR THE RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM (REMP)0 0 JANUARY 2010- DECEMBER 2010 Prepared By: Martha J. Harrison Quality Assurance Officer February 15, 2011 Date Approved By: -4'-2. Robert L. Pullano Director, Quality Systems February 15, 2011 Date 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0* Laboratories LLC 0 P.O. Box 30712, Charleston, SC 29417 0 2010 ANNUAL QUALITY ASSURANCE REPORT Page 3 of 51 0 0 TABLE OF CONTENTS 1. Introduction

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

.......5 0 2. Quality Assurance Programs for Inter-laboratory, Intra-Laboratory, and Third Party C ross-C heck ..........................................................................................

...6 0 3. Quality Assurance Program for Internal and External Audits ...................................

7 4. Performance Evaluation Acceptance Criteria for Environmental Sample Analysis ..........

8 0 5. Performance Evaluation Samples .............................................................................

8 6. Quality Control Program for Environmental Sample Analysis ..............................

8 0 7. Summary of Data Results .......................................................................................

9 8. Summary of Participation in Eckert & Ziegler Analytics Environmental Cross-Check P ro g ra m ..........................................................................................................................

1 0* 9. Summary of Participation in the MAPEP Monitoring Program ................................

10 10. Summary of Participation in ERA (MRAD) PT Program ..........................................

10 11. Summary of Participation in the ERA PT Program ................................................

11 0 12. Summary of Participation in the NY ELAP PT Program .......................................

11 13. Quality Control Program for REMP Analyses ..........................................................

12 14. Corrective Action and Request Report (CARR) .....................................................

12 1 5 .R e fe re n ce s .....................................................................................................................

12 0 0 0 0 0 0 0 0 0 0 0 0 0 L]Laboral P.O. Box 30712, Charleston, SC 2 2010 ANNUAL QUALITY ASSUR 1. 2010 RADIOLOGICa CRITERIA 2. 2010 ECKERT &ZIE 3. 2010 DEPARTMEN PROGRAM (MAPEF 4. 2010 ERA PROGRA 5. 2010 ERA PROGRA 6. 2010 NEW YORK S LABORATORY APP RESULTS 7. GEL 2010 RADIOLO INTRA-LABORATOF

8. GEL 2010 RADIOLO PRECISION BY MA 9. GEL 2010 CORREC 1. COBALT-60 PERFO 2. CESIUM-137 PERFC 3. TRITIUM PERFORM 4. IODINE-131 PERFO 5. STRONTIUM-90 PEF 6. GROSS ALPHA PEF 7. GROSS BETA PERF 0 tories LLC 29417 0 ,ANCE REPORT Page 4 of 51 S S TABLE OF CONTENTS (CONTINUED) 5 S LIST OF TABLES S%L PROFICIENCY TESTING RESULTS AND ACCEPTANCE

..GLER ANALYTICS PERFORMANCE EVALUATION RESULTS 5 S r OF ENERGY MIXED ANALYTE PERFORMANCE EVALUATION

)) RESULTS"M PERFORMANCE EVALUATION RESULTS"M (MRAD) PERFORMANCE EVALUATION RESULTS TATE DEPARTMENT OF HEALTH ENVIRONMENTAL ROVAL PROGRAM (NYSDOH ELAP) PROFICIENCY TEST S)GICAL ENVIRONMENTAL MONITORING PROGRAM (REMP)RY DATA

SUMMARY

BIAS AND PRECISION BY MATRIX)GICAL INTRA-LABORATORY DATA

SUMMARY

BIAS AND TRIX TIVE ACTION

SUMMARY

S LIST OF FIGURES E DRMANCE EVALUATION RESULTS AND % BIAS)RMANCE EVALUATION RESULTS AND % BIAS E/lANCE EVALUATION RESULTS AND % BIAS RMANCE EVALUATION RESULTS AND % BIAS RFORMANCE EVALUATION RESULTS AND % BIAS RFORMANCE EVALUATION RESULTS AND % BIAS S-ORMANCE EVALUATION RESULTS AND % BIAS S S S S S 0 0 0* LaboratorieS LLC P.O. Box 30712, Charleston, SC 29417 0 2010 ANNUAL QUALITY ASSURANCE REPORT Page 5 of 51 S 8. IODINE-131 PERFORMANCE EVALUATION RESULTS AND % BIAS 0*2010 ANNUAL QUALITY ASSURANCE REPORT FOR THE RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM (REMP)1. Introduction GEL Laboratories, LLC (GEL) is a privately owned environmental laboratory dedicated to providing personalized client services of the highest quality. GEL was established as an analytical testing laboratory in 1981. Now a full service lab, our analytical divisions use state of the art equipment and methods to provide a comprehensive array of organic, inorganic, Sand radiochemical analyses to meet the needs of our clients.At GEL, quality is emphasized at every level of personnel throughout the company.0Management's ongoing commitment to good professional practice and to the quality of our testing services to our customers is demonstrated by their dedication of personnel and resources to develop, implement, assess, and improve our technical and management 5operations.

0The purpose of GEL's quality assurance program is to establish policies, procedures, and processes to meet or exceed the expectations of our clients. To achieve this, all personnel that support these services to our clients are introduced to the program and policies during their initial orientation, and annually thereafter during company-wide training sessions.GEL's primary goals are to ensure that all measurement data generated are scientifically

and legally defensible, of known and acceptable quality per the data quality objectives (DQOs), and thoroughly documented to provide sound support for environmental decisions.

0! In addition, GEL continues to ensure compliance with all contractual requirements, environmental standards, and regulations established by local, state and federal authorities.

GEL administers the QA program in accordance with the Quality Assurance Plan, GL-QS-B-001. Our Quality Systems include all quality assurance (QA) policies and quality control (QC) procedures necessary to plan, implement, and assess the work we perform. GEL's*QA Program establishes a quality management system (QMS) that governs all of the activities of our organization.

This report entails the quality assurance program for the proficiency testing and environmental monitoring aspects of GEL for 2010. GEL's QA Program is designed to monitor the quality of analytical processing associated with environmental, radiobioassay,*effluent (10 CFR Part 50), and waste (10 CFR Part 61) sample analysis.*This report covers the category of Radiological Environmental Monitoring Program (REMP)and includes:* Intra-laboratory QC results analyzed during 2010.* Inter-laboratory QC results analyzed during 2010 where known values were available.

S S S 0 S Laboratories LLC P.O. Box 30712, Charleston, SC 29417 0 2010 ANNUAL QUALITY ASSURANCE REPORT Page 6 of 51 0 0 2. Quality Assurance Programs for Inter-laboratory, Intra-laboratory and Third Party 0 Cross-Check In addition to internal and client audits, our laboratory participates in annual performance evaluation studies conducted by independent providers.

We routinely participate in the following types of performance audits: 0" Proficiency testing and other inter-laboratory comparisons.

Performance requirements necessary to retain Certifications

Evaluation of recoveries of certified reference and in-house secondary reference 0 materials using statistical process control data.* Evaluation of relative percent difference between measurements through SPC data. 0 0 We also participate in a number of proficiency testing programs for federal and state agencies and as required by contracts.

It is our policy that no proficiency evaluation 0 samples be analyzed in any special manner. Our annual performance evaluation 0 participation generally includes a combination of studies that support the following:

US Environmental Protection Agency Discharge Monitoring Report, Quality 0 Assurance Program (DMR-QA).

Annual national program sponsored by EPA for laboratories engaged in the analysis of samples associated with the NPDES monitoring program. Participation is mandatory for all holders of NPDES permits. 5 The permit holder must analyze for all of the parameters listed on the discharge permit. Parameters include general chemistry, metals, BOD/COD, oil and grease, 0 ammonia, nitrates, etc.* Department of Energy Mixed Analyte Performance Evaluation Program (MAPEP). A 0 semiannual program developed by DOE in support of DOE contractors performing waste analyses.

Participation is required for all laboratories that perform environmental analytical measurements in support of environmental management activities.

This program includes radioactive isotopes in water, soil, vegetation and air filters.* ERA's MRAD-Multimedia Radiochemistry Proficiency test program. This program is 0 for labs seeking certification for radionuclides in wastewater and solid waste. The 0 program is conducted in strict compliance with USEPA National Standards for Water 0 Proficiency study." ERA's InterLaB RadCheM Proficiency Testing Program for radiological analyses.This program completes the process of replacing the USEPA EMSL-LV Nuclear 0 Radiation Assessment Division program discontinued in 1998. Laboratories seeking certification for radionuclide analysis in drinking water also use the study. This program is conducted in strict compliance with the USEPA National Standards for 0 Water Proficiency Testing Studies. This program encompasses Uranium by EPA 0 method 200.8 (for drinking water certification in Florida/Primary NELAP), gamma S S S S 0 0 0* Laboratories LLC 0 P.O. Box 30712, Charleston, SC 29417 0 2010 ANNUAL QUALITY ASSURANCE REPORT Page 7 of 51 0 emitters, Gross Alpha/Beta, Iodine-131, naturally occurring radioactive isotopes, Strontium-89/90, and Tritium.0 ERA's Water Pollution (WP) biannual program for waste methodologies includes 0parameters for both organic and inorganic analytes.0 ERA's Water Supply (WS) biannual program for drinking water methodologies

includes parameters for organic and inorganic analytes.* New York State Department of Health Environmental Laboratory Approval Program*Proficiency Testing Program for Potable Water (PW)* .Environmental Cross-Check Program administered by Eckert & Ziegler Analytics, 0Inc. This program encompasses radionuclides in water, soil, milk, naturally 0t occurring radioactive isotopes in soil and air filters.GEL procures single-blind performance evaluation samples from Eckert & Ziegler Analytics to verify the analysis of sample matrices processed at GEL. Samples are received on a 0t quarterly basis. GEL's Third-Party Cross-Check Program provides environmental matrices encountered in a typical nuclear utility REMP. The Third-Party Cross-Check Program is intended to meet or exceed the inter-laboratory comparison program requirements discussed in NRC Regulatory Guide 4.15, revision 1. Once performance evaluation samples have been prepared in accordance with the instructions provided by the PT provider, samples are managed and analyzed in the same manner as environmental samples from GEL's clients.S3. Quality Assurance Program for Internal and External Audits 0During each annual reporting period, at least one internal assessment is conducted in accordance with the pre-established schedule from Standard Operating Procedure for the Conduct of Quality Audits, GL-QS-EO01.

The annual internal audit plan is reviewed for adequacy and includes the scheduled frequency and scope of quality control actions necessary to GEL's QA program. Internal audits are conducted at least annually in accordance with a schedule approved by the Quality Systems Director.

Supplier audits are contingent upon the categorization of the supplier, and may or may not be conducted prior to the use of a supplier or subcontractor.

Type I suppliers and subcontractors, regardless of how they were initially qualified, are re-evaluated at least once every three years.0 In addition, prospective customers audit GEL during pre-contract audits. GEL hosts several S external audits each year for both our clients 'and other programs.

These programs include environmental monitoring, waste characterization, and radiobioassay.

The following list of programs may audit GEL at least annually or up to every three years depending on the 0program.0 NELAC, National Environmental Laboratory Accreditation Program 0

DOECAP, U.S. Department of Energy Consolidated Audit Program* DOELAP, U.S. Department of Energy Laboratory Accreditation Program* DOE QSAS, U.S. Department of Energy, Quality Systems for Analytical Services* ISO/IEC 17025 0 0 0 0 0 0 0 Laboratories LLC P.O. Box 30712, Charleston, SC 29417 0 2010 ANNUAL QUALITY ASSURANCE REPORT Page 8 of 51* A2LA, American Association for Laboratory Accreditation

DOD ELAP, US Department of Defense Environmental Accreditation Program* NUPIC, Nuclear Procurement Issues Committee" South Carolina Department of Heath and Environmental Control (SC DHEC)The annual radiochemistry laboratory internal audit (10-RAD-001) was conducted in March 2010. Four findings, one observation, and two recommendations resulted from this assessment.

Each finding was closed and appropriate laboratory staff addressed each observation and recommendation.

The internal audit closed in June 2010.4. Performance Evaluation Acceptance Criteria for Environmental Sample Analysis GEL utilized an acceptance protocol based upon two performance models. For those inter-laboratory programs that already have established performance criteria for bias (i.e., MAPEP, and ERA/ELAP), GEL will utilize the criteria for the specific program. For intra-laboratory or third party quality control programs that do not have a specific acceptance criteria (i.e. the Eckert-Ziegler Analytics Environmental Cross-check Program), results will be evaluated in accordance with GEL's internal acceptance criteria.0 5. Performance Evaluation Samples Performance Evaluation (PE) results and internal quality control sample results are evaluated in accordance with GEL acceptance criteria.

The first criterion concerns bias, which is defined as the deviation of any one result from the known value. The second criterion concerns precision, which deals with the ability of the measurement to be replicated by comparison of an individual result with the mean of all results for a given sample set.At GEL, we also evaluate our analytical performance on a regular basis through statistical process control acceptance criteria.

Where feasible, this criterion is applied to both measures of precision and accuracy and is specific to sample matrix. We establish environmental process control limits at least annually.For Radiochemistry analysis, quality control evaluation is based on static limits rather than those that are statistically derived. Our current process control limits are maintained in GEL's AlphaLIMS.

We also measure precision with matrix duplicates and/or matrix spike duplicates.

The upper and lower control limits (UCL and LCL respectively) for precision are plus or minus three times the standard deviation from the mean of a series of relative percent differences.

The static precision criteria for radiochemical analyses are 0 -20%, for activity levels exceeding the contract required detection limit (CRDL).6. Quality Control Program for Environmental Sample Analysis GEL's internal QA Program is designed to include QC functions such as instrumentation calibration checks (to insure proper instrument response), blank samples, instrumentation backgrounds, duplicates, as well as overall staff qualification analyses and statistical process controls.

Both quality control and qualification analyses samples are used to be as similar as the matrix type of those samples submitted for analysis by the various laboratory clients. These performance test samples (or performance evaluation samples) are either 0 0 0 0 0 0 0* LaboratorieS LLC P.O. Box 30712, Charleston, SC 29417 2010 ANNUAL QUALITY ASSURANCE REPORT Page 9 of 51 actual sample submitted in duplicate in order to evaluate the precision of laboratory measurements, or fortified blank samples, which have been given a known quantity of a*radioisotope that is in the interest to GEL's clients.01 Accuracy (or Bias) is measured through laboratory control samples and/or matrix spikes, as well as surrogates and internal standards.

The UCLs and LCLs for accuracy are plus or 0minus three times the standard deviation from the mean of a series of recoveries.

The static*limit for radiochemical analyses is 75 -125%. Specific instructions for out-of-control situations are provided in the applicable analytical SOP.GEL's Laboratory Control Standard (LCS) is an aliquot of reagent water or other blank matrix to which known quantities of the method analytes are added in the laboratory.

The*LCS is analyzed exactly like a sample, and its purpose is to determine whether the methodology is in control, and whether the laboratory is capable of making accurate and precise measurements.

Some methods may refer to these samples as Laboratory Fortified*I Blanks (LFB). The requirement for recovery is between 75 and 125% for radiological analyses excluding drinking water matrix.*Bias (%) = (observed concentration)

100 %(known concentration)

Precision is a data quality indicator of the agreement between measurements of the same property, obtained under similar conditions, and how well they conform to themselves.

Precision is usually expressed as standard deviation, variance or range in either absolute or relative (percentage) terms.*GEL's laboratory duplicate (DUP or LCSD) is an aliquot of a sample taken from the same container and processed in the same manner under identical laboratory conditions.

The aliquot is analyzed independently from the parent sample and the results are compared to measure precision and accuracy.*If a sample duplicate is analyzed, it will be reported as Relative Percent Difference (RPD).The RPD must be 20 percent or less, if both samples are greater than 5 times the MDC. If both results are less than 5 times MDC, then the RPD must be equal to or less than 100%.*If one result is above the MDC and the other is below the MDC, then the RPD can be calculated using the MDC for the result of the one below the MDC. The RPD must be 100%or less. In the situation where both results are above the MDC but one result is greater than 5 times the MDC and the other is less than 5 times the MDC, the RPD must be less than or equal to 20%. If both results are below MDC, then the limits on % RPD are not*applicable.

Difference

(%) = (high duplicate result -low duplicate result)

100 %*(average of results)7. Summary of Data Results During 2010, forty-three radioisotopes associated with six matrix types were analyzed*I under GEL's Performance Evaluation program in participation with ERA, MAPEP, NYSDOH*ELAP and Eckert & Ziegler Analytics.

Matrix types were representative of client analyses performed during 2010. The list below contains the type of matrix evaluated by GEL.0 0 0 0 0 Laboratories LLC P.O. Box 30712, Charleston, SC 29417 2010 ANNUAL QUALITY ASSURANCE REPORT Page 10 of 51 0* Air Filter* Cartridge* Water" Milk* Soil* Vegetation Graphs are provided in Figures 1-8 of this report to allow for the evaluation of trends or biases. These graphs include radioisotopes Cobalt-60, Cesium-137, Tritium, Strontium-90, Gross Alpha, Gross Beta, and Iodine-131.

A summary of GEL's quality control for radiological analyses by isotopic analysis and matrix are represented in Table 8. Each LCS and DUP represents a batch of samples for each isotopic analysis.

This summary contains ' 0 the number of reportable quality control results for our clients.8. Summary of Participation in the Eckert & Ziegler Analytics Environmental Cross-Check Program During 2010, Eckert & Ziegler Analytics provided samples for 106 individual environmental analyses.

Of the 106 analyses, 99% (105 out of 106) of all results fell within the PT provider's acceptance criteria.

The only analytical failure occurred with the analysis of Iron-59 in milk. For the corrective action associated with the Iron-59 failure, refer to CARR1 10209-542 (Table 9).9. Summary of Participation in the MAPEP Monitoring Program During 2010, one set of MAPEP samples (MAPEP 22) was analyzed by the laboratory.

Of the 66 analyses, 80% (53 out of 66) of all results fell within the PT provider's acceptance criteria.

Thirteen analytical failures occurred:

Plutonium-238 in water, Uranium-235 in filter, Uranium-238 in filter, Uranium-Total in filter, Americium-241 in filter, Cesium-134 in filter, Cesium-137 in filter, Cobalt-60 in filter, Manganese-54 in filter, Plutonium-239/240 in filter, Uranium-244/243 in filter, Uranium-238 in filter, and Uranium-238 in vegetation.

0 For the corrective action associated MAPEP 22, refer to CARR100617-496 (Table 9). The ICP-MS analysis of Uranium-235 and Uranium-238 failure was attributed to the use of the less vigorous digestion method (EPA Method 3050B). After contacting RESL, GEL discovered that they had used a more rigorous total dissolution process. The failure for Plutonium-238 was attributed to a data reviewer's error and lack of attention to detail to the region of interest that was not included in the data result. Approximately 400 additional counts should have been included.

For the remaining isotopic failures, the error was attributed to analyst error and failure to follow the instructions from the PT provider.10. Summary of Participation in the ERA MRaD PT Program During 2010, the ERA MRad program provided samples (MRAD-12 and MRAD-13) for 175 individual environmental analyses.

Of the 175 analyses, 96% (169 out of 176) of all results fell within the PT provider's acceptance criteria.

Six analytical failures occurred:

Uranium-234 in soil, Uranium-238 in soil, Uranium-238 in vegetation, Plutonium-238 in water, Uranium-238 in water, and Bismuth-212 in soil.0 0 0 0 0

Laboratories LLC 0 P.O. Box 30712, Charleston, SC 29417 2010 ANNUAL QUALITY ASSURANCE REPORT Page 11 of 51 01 For the corrective actions associated with MRAD 12 and MRAD-13, refer to corrective actions CARR100617-497 and CARR101210-527, respectively (Table 9). For MRAD-12, the ICP-MS analysis of Uranium-235 and Uranium-238 failure was attributed to the use of* the less vigorous digestion method (EPA Method 30508). After contacting RESL, GEL discovered that they had used a more rigorous total dissolution process. For Uranium-238 in vegetation, air and water, the failure was attributed to method sensitivity by gamma 0spectroscopy.

Future PT analysis will be performed using a more sensitive method.*1 For MRAD-13, the failure for Bismuth-212 was attributed to a reporting error. The actual*result (1660 pCi/kg) was within the acceptance range. The failure of Iron-55 was attributed to matrix interference.

An additional recount with a smaller aliquot and fresh reagent rinses 0removed the interferant.

0 11. Summary of Participation in the ERA PT Program 0 During 2010, the ERA program provided samples (RAD-80 and RAD-82) for 53 individual

environmental analyses.

Of the 53 analyses, 77% (41 out of 53) of all results fell within the PT provider's acceptance criteria.

Twelve analytical failures occurred:

Strontium-89 in water, Strontium-90 in water, Barium-133 in water, Cesium-134 in water, Cesium-137 in 0! water, Cobalt-60 in water, Zinc-65 in water, Uranium (Natural) in water, Uranium (Nat) Mass in water, Strontium-90 in water, Cesium-1 34 in water, and Zinc-65 in water: 0For the corrective actions associated with RAD-80 and RAD-82, refer to corrective actions CARR100318-487 and CARR100907-512, respectively (Table 9). For RAD-80, the Gross Alpha failure was attributed to a concentrated iron carrier. The Strontium-89 and Strontium-

90 failures were attributed to the associated weights of the carriers utilized during the preparation and analysis.For RAD-82, failures of the Gamma Emitters and the Naturals (Uranium) were attributed to analyst error and failure to follow the instructions from the PT provider.

The failure of*Strontium-89 and Strontium-90 was attributed to analyst error while diluting the sample.12. Summary of Participation in the New York ELAP PT Program 0 During 2010, the NYSDOH ELAP PT program provided 30 individual tests for radiological

analysis.

Of the 30 analyses, 83% (25 out of 30) of the results were within the PT provider's acceptance criteria.

Five analytical failures occurred:

Cesium-134 in water, Iodine-131 in water (two), Strontium-89 in water, and Radium-226 in water.For the corrective actions associated with NY-337, refer to corrective action CARRI 01203-525 (Table 9). For Cesium-134, Iodine-1 31, Strontium-89 and Strontium-90, and Radium-226, the failures could not be determined.

The laboratory continues to monitor results of internal quality control samples.*I In addition, GEL (Lab ID# E87156, Lab Code# SC00012) maintained primary NELAP accreditation from the Florida Department of Health for the following methods in potable 0water and non-potable water. The radiological analytes and methods are listed below.a Gross Alpha: EPA 900.0, EPA 1984 00-02 0 0 0 0 0 0 S 0 F 7 Lab oratories LLC P.O. Box 30712, Charleston, SC 29417 0 2010 ANNUAL QUALITY ASSURANCE REPORT Page 12 of 51* Gross Beta: EPA 900.0 0" Iodine-131:

DOE 4.5.2.3, EPA 901.1, EPA 902.0" Photon Emitters:

DOE 4.5.2.3, EPA 901.1" Radioactive Cesium: DOE 4.5.2.3, EPA 901.1" Tritium: EPA 906.0* Radium-226:

EPA 903.1, EPA 1984 Ra-04* Radium-228:

EPA 904.0, EPA 1976 PP.24* Radon: SM 20 7500 Rn, DOE 1990 Sr-02* Strontium-89:

EPA 905.0* Strontium-90:

EPA 905.0" Uranium (Activity):

DOE 1990 U-02, ASTM D5174-97, 02 13. Quality Control Program for REMP Analyses GEL's internal (intra-laboratory) quality control program evaluated 1590 individual analyses for bias and 1591 analyses for precision for standard REMP matrix and radionuclides.

Of the 959 internal quality control analyses evaluated for bias, 100% met laboratory 0 acceptance criteria.

In addition, 100% of the 1591 results for precision were found to be acceptable.

The results are summarized in Table 8.0 GEL performs low-level analysis specifically for Tritium in water. A chart of low activity H-3 spike performance is provided in Figure 8. All 2010 analyses were within the acceptance criteria.14. Corrective Action Request and Report (CARR)There are two categories of corrective action at GEL. One is corrective action implemented at the analytical and data review level in accordance with the analytical SOP. The other is 5 formal corrective action documented by the Quality Systems Team in accordance with GL-QS-E-002.

A formal corrective action is initiated when a nonconformance reoccurs or is so significant that permanent elimination or prevention of the problem is required.GEL includes quality requirements in most analytical standard operating procedures to ensure that data are reported only if the quality control criteria are met or the quality control measures that did not meet the acceptance criteria are documented.

A formal corrective action is implemented according to GL-QS-E-002 for Conducting Corrective/Preventive Action and Identifying Opportunities for Improvement.

Recording and documentation is performed following guidelines stated in GL-QS-E-012 for Client NCR Database Operation.

Any employee at GEL can identify and report a nonconformance and request that corrective action be taken. Any GEL employee can participate on a corrective action team as requested by the QS team or Group Leaders. The steps for conducting corrective action are detailed in GL-QS-E-002.

In the event that correctness or validity of the laboratory's test results in doubt, the laboratory will take corrective action. If investigations show that the 0 results have been impacted, affected clients will be informed of the issue in writing within five (5) calendar days of the discovery.

T Table 9 provides the status of CARRs for radiological performance testing during 2010.S S S S 0 0 0 0* Laboratories LLC S P.O. Box 30712, Charleston, SC 29417 0 2010 ANNUAL QUALITY ASSURANCE REPORT Page 13 of 51 0 15. References

1. GEL Quality Assurance Plan, GL-QS-B-001

2. GEL Standard Operating Procedure for the Conduct of Quality Audits, GL-QS-E-001

3. GEL Standard Operating Procedure for Conducting Corrective/Preventive Action and*Identifying Opportunities for Improvement, GL-QS-E-002

4. GEL Standard Operating Procedure for AlphaLIMS Documentation of Nonconformance Reporting and Dispositioning and Control of Nonconforming Items, GL-QS-E-004

5. GEL Standard Operating Procedure for Handling Proficiency Evaluation Samples, GL-QS-E-013 6. GEL Standard Operating Procedure for Quality Assurance Measurement Calculations and 0Processes, GL-QS-E-014

7. 40 CFR Part 136 Guidelines Establishing Test Procedures for the Analysis of Pollutants

8. ISO/IEC 17025-2005, General Requirements for the Competence of Testing and*1 Calibration Laboratories

9. ANSI/ASQC E4-1994, Specifications and Guidelines for Quality Systems for Environmental 0O Data Collection and Environmental Technology Programs, American National Standard*10. 2003 NELAC Standard, National Environmental Laboratory Accreditation Program*I 11. MARLAP, Multi-Agency Radiological Laboratory Analytical Protocols 12. 10 CFR Part 21, Reporting of Defects and Noncompliance

13. 10 CFR Part 50 Appendix B, Quality Assurance Criteria for Nuclear Power Plants and Fuel* Reprocessing Plants 14. 10 CFR Part 61, Licensing Requirements for Land Disposal and Radioactive Waste 15. NRC REG Guide 4.15 and NRC REG Guide 4.8 0 0 0 0 0 0 0 0 0 0 0 0 0 RLaboratories LLC P.O. Box 30712, Charleston, SC 29417 2010 ANNUAL QUALITY ASSURANCE REPORT Page 14 of 51 TABLE 1 2010 RADIOLOGICAL PROFICIENCY TESTING RESULTS AND ACCEPTANCE CRITERIA Acceptance Sample Sample Known 'Range/Number Quarter / Year Media Unit Analyte / Nuclide GEL Value value Ratio Evaluation RAD -80 Vt/2010 Water pCi/L Barium-133 73.5 72.9 61.0 -80.2 Acceptable RAD -80 1 t / 2010 Water pCi/L Cesium-134 69.2 63.4 51.5 -69.7 Acceptable RAD -80 1/ 2010 Water pCi/L Cesium-137 118.0 120 108- 134 Acceptable RAD -80 1 / 2010 Water pCi/L Cobalt-60 87.7 90 81-101 Acceptable RAD -80 't/ 2010 Water pCi/L Gross Alpha 51.3 42.5 22.0 -53.9 Acceptable RAD -80 lt /2010 Water pCi/L Gross Beta 52.0 54.2 37.0 -61.1 Acceptable RAD -80 1 /2010 Water pCi/L Iodine-131 30.5 28.2 23.5 -33.1 Acceptable RAD -80 V/2010 Water pCi/L Radium-226 16.9 17.8 13.2-20.3 Acceptable RAD -80 1 /2010 Water pCi/L Radium-228 20.4 18.2 12.3-21.8 Acceptable Not RAD -80 Vt/ 2010 Water pCi/L Strontium-89 37.9 53.3 42.3-60.9 Acceptable Not RAD -80 1 t/2010 Water pCi/L Strontium-90 52.3 42.2 31.1 -48.4 Acceptable RAD -80 It / 2010 Water pCi/L Tritium 19200 18700 16400-20600 Acceptable RAD -80 1 /2010 Water pCi/L Uranium (Nat) 49.0 50.2 40.7-55.8 Acceptable Uranium (Nat)RAD -80 Vt / 2010 Water ug/L Mass 67.3 73.2 59.4-81.4 Acceptable RAD -80 1t / 2010 Water pCi/L Zinc-65 213.0 210 189-246 Acceptable E6922-278 2"d / 2010 Cartridge pCi Iodine-131 9.02E+01 9.39E+01 0.96 Acceptable E6924-278 2 nd / 2010 Milk pCi/L Iodine-131 8.25E+01 8.73E+01 0.95 Acceptable E6925-278 2 nd /2010 Water pCi/L Iodine-131 1.OOE+02 9.61E+01 1.04 Acceptable E6924-278 2 nd /2010 Milk pCi/L Iron-59 1.88E+02 1.78E+02 1.06 Acceptable E6925-278 2 d /2010 Water pCi/L Iron-59 1.94E+02 1.79E+02 1.08 Acceptable E6924-278 2"d /2010 Milk pCi/L Manganese-54 1.83E+02 1.78E+02 1.03 Acceptable E6925-278 2 nd / 2010 Water pCi/L Manganese-54 1.90E+02 1.79E+02 1.06 Acceptable E6923-278 2n1 /2010 Milk pCi/L Strontium-89 9.73E+01 1.31E+02 0.75 Acceptable E6923-278 2°n /2010 Milk pCi/L Strontium-90 1.38E+01 1.79E+01 0.77 Acceptable E6924-278 2" /2010 Milk pCi/L Zinc-65 3.68E+02 3.45E+02 1.07 Acceptable E6925-278 2 nd /2010 Water pCi/L Zinc-65 3.72E+02 3.48E+02 1.07 Acceptable E6924-278 2 n, /2010 Milk pCi/L Cerium-141 2.01 E+02 2.02E+02 0.99 Acceptable E6925-278 2 nd / 2010 Water pCi/L Cerium-141 2.04E+02 2.04E+02 1.00 Acceptable E6924-278 2"n /2010 Milk pCi/L Cesium-134 2.41E+02 2.53E+02 0.95 Acceptable E6925-278 2°n /2010 Water pCi/L Cesium-134 2.56E+02 2.55E+02 1.00 Acceptable E6924-278 2nd 12010 Milk pCi/L Cesium-137 1.71E+02 1.79E+02 0.96 Acceptable E6925-278 2°n /2010 Water pCi/L Cesium-137 1.81 E+02 1.81E+02 1.00 Acceptable E6924-278 2"d /2010 Milk pCi/L Cobalt-58 2.03E+02 2.11E+02 0.96 Acceptable E6925-278 2"d /2010 Water pCi/L Cobalt-58 2.19E+02 2.13E+02 1.03 Acceptable 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 S 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Laboratories LLC P.O. Box 30712, Charleston, SC 29417 2010 ANNUAL QUALITY ASSURANCE REPORT Page 15 of 51 Acceptance Sample Sample Known Range/Number Quarter / Year Media Unit Analyte / Nuclide GEL Value value Ratio Evaluation E6924-278 2 nd / 2010 Milk pCi/L Cobalt-60 2.47E+02 2.56E+02 0.97 Acceptable E6925-278 2"d /2010 Water pCi/L Cobalt-60 2.67E+02 2.58E+02 1.03 Acceptable E6924-278 1 2 d /2010 Milk pCi/L Cr-51 5.54E+02 5.48E+02 1.01 Acceptable E6925-278 2nd /2010 Water pCi/L Cr-51 5.78E+02 5.54E+02 1.04 Acceptable E7054-278 2nd /2010 Milk pCi/L Cerium-141 2.61 E+02 2.61 E+02 1.00 Acceptable E7055-278 2nd /2010 Water pCi/L Cerium-141 2.78E+02 2.63E+02 1.06 Acceptable E7054-278 2°d /2010 Milk pCi/L Cesium-134 1.76E+02 1.78E+02 10.99 Acceptable E7055-278 2 nd /2010 Water pCi/L Cesium-134 1.85E+02 1.79E+02 1.03 Acceptable E7054-278 2 d /2010 Milk pCi/L Cesium-137 1.61E+02 1.58E+02 1.02 Acceptable E7055-278 2"d /2010 Water pCi/L Cesium-137 1.71E+02 1.59E+02 1.07 Acceptable E7054-278 2"d /2010 Milk pCi/L Cobalt-58 1.45E+02 1.43E+02 1.02 Acceptable E7055-278 2"n /2010 Water pCi/L Cobalt-58 1.51E+02 1.44E+02 1.05 Acceptable E7054-278 2nd /2010 Milk pCi/L Cobalt-60 1.90E+02 1.83E+02 1.04 Acceptable E7055-278 2"d /2010 Water pCi/L Cobalt-60 1.94E+02 1.85E+02 1.05 Acceptable E7054-278 2"d /2010 Milk pCi/L Cr-51 3.819E+02 3.61E+02 1.05 Acceptable E7055-278 2 nd /2010 Water pCi/L Cr-51 3.86E+02 3.64E+02 1.06 Acceptable E7052-278 2"d /2010 Cartridge pCi Iodine-131 8.58E+01 8.54E+01 1.00 Acceptable E7054-278 2"d /2010 Milk pCi/L Iodine-131 6.91E+01 7.40E+01 0.93 Acceptable E7055-278 2"d /2010 Water pCi/L Iodine-131 8.12E+01 7.22E+01 1.12 Acceptable E7054-278 2"d /2010 Milk pCi/L Iron-59 1.60E+02 1.37E+02 1.17 Acceptable E7055-278 2"d /2010 Water pCi/L Iron-59 1.60E+02 1.38E+02 1.16 Acceptable E7054-278 2 nd /2010 Milk pCi/L Manganese-54 2.10E+02 2.07E+02 1.01 Acceptable E7055-278 2 d /2010 Water pCi/L Manganese-54 2.30E+02 2.09E+02 1.1 Acceptable E7053-278 2 n1 /2010 Milk pCi/L Strontium-89 7.91 E+01 9.28E+01 0.85 Acceptable E7053-278 2 nd / 2010 Milk pCi/L Strontium-90 1.12E+01 1.27E+01 0.88 Acceptable E7054-278 2 d /2010 Milk pCi/L Zinc-65 2.710E+02 2.54E+02 1.07 Acceptable E7055-278 2" /2010 Water pCi/L Zinc-65 2.97E+02 2.56E+02 1.16 Acceptable NY-332 3262 2 d / 2010 Water pCi/L Barium-133 27.8 25.6 20.610. .5 Acceptable NY-332 3262 2 nd /2010 Water pCi/L Cesium-134 14.8 14.0 10.7-17.3 Acceptable NY-332 3262 2"d /2010 Water pCi/L Cesium-137 124 123 112-134 Acceptable NY-332 3262 2 nd /2010 Water pCi/L Cobalt-60 98.3 99.5 90.3-109 Acceptable NY-332 3263 2 n / 2010 Water pCi/L Gross Alpha 33.0 26.8 15.0-38.6 Acceptable NY-332 3263 2"d / 2010 Water pCi/L Gross Beta 64.6 54.0 41.3- 66.7 Acceptable NY-332 3264 2"d /2010 Water pCi/L Iodine-131 23.4 26.4 21.9-31.0 Acceptable NY-332 3264 2 d / 2010 Water pCi/L Iodine-131 26.8 26.4 21.9 -31.0 Acceptable NY-332 3265 2nd /2010 Water pCi/L Radium-226 12.1 13.2 10.4-16.0 Acceptable NY-332 3265 2°d / 2010 Water pCi/L Radium-228 9.90 8.91 6.08 -11.7 Acceptable Laboratories LLC P.O. Box 30712, Charleston, SC 29417 2010 ANNUAL QUALITY ASSURANCE REPORT Page 16 of 51 Acceptance Sample Sample Known Range/Number Quarter / Year Media Unit Analyte / Nuclide GEL Value value Ratio Evaluation NY-332 3261 2 nd /2010 Water pCi/L Strontium-89 46.7 41.9 33.4-50.4 Acceptable NY-332 3261 2 nd / 2010 Water pCi/L Strontium-90 33.9 34.8 27.1 -42.5 Acceptable NY-332 3266 2 nd / 2010 Water pCi/L Tritium 9610 9490 8390 -10600 Acceptable NY-332 3265 2"d / 2010 Water pCi/L Uranium (activity) 48.81 44.7 37.9 -51.4 Acceptable NY-332 3262 2"n /2010 Water pCi/L Zinc-65 146 139 121 -156 Acceptable MRAD-12 2 nd /2010 Soil pCi/kg Actinium-228 1570 1850 1190-2600 Acceptable MRAD-12 2 "d /2010 Soil pCi/kg Americium-241 1130 1500 896-1930 Acceptable MRAD-12 2°d /2010 Soil pCi/kg Americium-241 1120 1500 896- 1930 Acceptable MRAD-12 2°d / 2010 Vegetation pCi/kg Americium-241 2410 3140 1790-4310 Acceptable MRAD-12 2nd / 2010 Vegetation pCi/kg Americium-241 3600 3140 1790- 4310 Acceptable MRAD-12 2nd / 2010 Air Filter pCi/Filter Americium-241 52.7 60.0 35.1- 82.3 Acceptable MRAD-12 2" / 2010 Air Filter pCi/Filter Americium-241 76 60 35.1 -82.3 Acceptable MRAD-12 2 nd / 2010 Water pCi/L Americium-241 79.1 95.6 65.5 -8129 Acceptable MRAD-12 2"d / 2010 Water pCi/L Americium-241 123 95.6 65.5 -129 Acceptable MRAD-12 2"d /2010 Soil pCi/kg Bismuth-212 1430 1640 430-2450 Acceptable MRAD-12 2 nd/ 2010 Soil pCi/kg Bismuth-214 1080 1410 865-2030 Acceptable MRAD-12 2"d /2010 Soil pCi/kg Cesium-134 3040 3110 2000-3740 Acceptable MRAD-12 2 nd / 2010 Vegetation pCi/kg Cesium-134 1750 1670 956-2310 Acceptable MRAD-12 2 nd / 2010 Air Filter pCi/Filter Cesium-134 504 436 284-540 Acceptable MRAD-12 2"d /2010 Water pCi/L Cesium-134 454 417 308-479 Acceptable MRAD-12 2 nd /2010 Soil pCi/kg Cesium-1 37 4330 4440 3400-5770 Acceptable MRAD-12 2"d / 2010 Vegetation pCi/kg Cesium-137 1550 1470 1080-2040 Acceptable MRAD-12 2 nd/ 2010 Air Filter pCi/Filter Cesium-137 785 701 527-921 Acceptable MRAD-12 2 nd /2010 Water pCi/L Cesium-137 693 654 556-783 Acceptable MRAD-12 2 nd / 2010 Soil pCi/kg Cobalt-60 2120 2140 1560 -2870 Acceptable MRAD-12 2 d / 2010 Vegetation pCi/kg Cobalt-60 2100 1970 1330-2830 Acceptable MRAD-12 2 d / 2010 Air Filter pCi/Filter Cobalt-60 591 523 405 -653 Acceptable MRAD-12 2 nd/ 2010 Water pCi/L Cobalt-60 813 727 633-859 Acceptable MRAD-12 2 d / 2010 Vegetation pCi/kg Curium-244 429 528 260-822 Acceptable MRAD-12 2 nd/ 2010 Air Filter pCi/Filter Gross Alpha 68.2 79.6 41.3- 120 Acceptable MRAD-12 2 nd/ 2010 Air Filter pCi/Filter Gross Beta 72 70.4 43.4- 103 Acceptable MRAD-12 2"d / 2010 Air Filter pCi/Filter Iron-55 375 359 158 -559 Acceptable MRAD-12 2"d / 2010 Soil pCi/kg Lead-212 1540 1520 980- 2140 Acceptable MRAD-12 2 d / 2010 Soil pCi/kg Lead-214 1300 1440 862-2140 Acceptable MRAD-12 2°n / 2010 Soil pCi/kg Manganese-54

< 22.9 0 ---- Acceptable MRAD-12 2 nd / 2010 Vegetation pCi/kg Manganese-54

< 9.6 0.00 Acceptable 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 I Laboratories LLC P.O. Box 30712, Charleston, SC 29417 2010 ANNUAL QUALITY ASSURANCE REPORT Page 17 of 51 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Acceptance Sample Sample Known Range/Number Quarter / Year Media Unit Analyte i Nuclide GEL Value value Ratio Evaluation MRAD-12 2" /2010 Air Filter pCi/Filter Manganese-54

< 5.07 0.00 --- Acceptable MRAD-12 2 nd /2010 Water pCi/L Manganese-54

< 7.7 0.00 Acceptable MRAD-12 2"d /2010 Soil pCi/kg Plutonium-238 1360 1330 761-1870 Acceptable MRAD-12 2n, /2010 Vegetation pCi/kg Plutonium-238 3090 3040 1640- 4450 Acceptable MRAD-12 2 nd / 2010 Air Filter pCi/Filter Plutonium-238 63.9 64.1 44.0 -84.3 Acceptable Not MRAD-12 2 n1 / 2010 Water pCi/L Plutonium-238 79.5 109 82.4- 135 Acceptable MRAD-12 2"d / 2010 Soil pCi/kg Plutonium-239 1220 1260 860- 1670 Acceptable MRAD-12 2nd / 2010 Vegetation pCi/kg Plutonium-239 2830 2800 1740-3820 Acceptable MRAD-12 2 d / 2010 Air Filter pCi/Filter Plutonium-239 56.6 56.7 41.1 -73.4 Acceptable MRAD-12 2 n, / 2010 Water pCi/L Plutonium-239 103 105 81.2- 130 Acceptable MRAD-12 2nd / 2010 Soil pCi/kg Potassium-40 11100 10900 7900- 14800 Acceptable 25100-MRAD-12 2nd / 2010 Vegetation pCi/kg Potassium-40 40800 34900 49400 Acceptable MRAD-12 2" /2010 Soil pCi/kg Strontium-90 7870 8180 2960-13300 Acceptable MRAD-12 2"' /2010 Soil pCi/kg Strontium-90 7870 8180 2960- 13300 Acceptable MRAD-12 2nd / 2010 Vegetation pCi/kg Strontium-90 7880 9120 5100- 12100 Acceptable MRAD-12 2 n" / 2010 Air Filter pCi/Filter Strontium-90 178 187 82.3-291 Acceptable MRAD-12 2"d / 2010 Water pCi/L Strontium-90 708 719 456-961 Acceptable MRAD-12 2 nd / 2010 Soil pCi/kg Thorium-234 1600 1610 511 -3070 Acceptable MRAD-12 2 nd / 2010 Soil pCi/kg Uranium-234 1230 1620 1030-2010 Acceptable MRAD-12 2 nd / 2010 Vegetation pCi/kg Uranium-234 1680 1720 1180- 2280 Acceptable MRAD-12 2 n1 / 2010 Air Filter pCi/Filter Uranium-234 68.8 62.1 39.1 -92.0 Acceptable MRAD-12 2nd / 2010 Water pCi/L Uranium-234 62.4 61.4 46.3-79.2 Acceptable Not MRAD-12 2nd / 2010 Soil oCi/kn Uranium-234

< 1158 1620 1030-2010 Acceptable MRAD-12 2°n / 2010 Soil pCi/kg Uranium-238 1158 1610 984 -2040 Acceptable Not MRAD-12 2°d / 2010 Soil pCi/kg Uranium-238 908 1610 984- 2040 Acceptable MRAD-12 2 nd / 2010 Soil pCi/kg Uranium-238 1440 1610 984- 2040 Acceptable MRAD-12 2 nd /2010 Vegetation pCi/kg Uranium-238 1604 1710 1200-2160 Acceptable MRAD-12 2nd / 2010 Vegetation pCi/kg Uranium-238 1770 1710 1200 -2160 Acceptable Not MRAD-12 2n1 / 2010 Vegetation pCi/kg Uranium-238

< 1240 1710 1200- 2160 Acceptable MRAD-12 2 nd /2010 Air Filter pCi/Filter Uranium-238 61.5 61.5 39.4 -87.3 Acceptable MRAD-12 2n1 / 2010 Air Filter pCi/Filter Uranium-238 69.5 61.5 39.4-87.3 Acceptable MRAD-12 2"d / 2010 Air Filter pCi/Filter Uranium-238

< 61.2 61.5 39.4-87.3 Acceptable MRAD-12 2 nd / 2010 Water pCi/L Uranium-238 67.9 60.9 46.5 -75.5 Acceptable MRAD-12 2°d / 2010 Water pCi/L Uranium-238 66.1 60.9 46.5 -75.5 Acceptable Not MRAD-12 2 nd / 2010 Water pCi/L Uranium-238

< 155 60.9 46.5 -75.5 Acceptable MRAD-12 2 nd / 2010 Soil pCi/kg Uranium-Total 2789 3300 1880- 4460 Acceptable MRAD-12 2"d / 2010 Vegetation pCi/kg Uranium-Total 3536 3510 2410-4530 Acceptable oLaboratories LLC P.O. Box 30712, Charleston, SC 29417 2010 ANNUAL QUALITY ASSURANCE REPORT Page 18 of 51 Sample Number Sample Media Known value Acceptance Range/Ratio Quarter / Year Unit Analyte / Nuclide GEL Value Evaluation Uranium-Total MRAD-12 2 nd / 2010 Soil ug/kg (mass) 2920 4820 2650- 6060 Acceptable Uranium-Total MRAD-12 2 rd /2010 Vegetation ug/kg (mass) 5270 5120 3520-6610 Acceptable Uranium-Total MRAD-12 2 nd / 2010 Vegetation pCi/kg (mass) 5290 5120 3520-6610 Acceptable Uranium-Total MRAD-12 2 nd / 2010 Air Filter ug/Filter (mass) 183 184 114- 264 Acceptable Uranium-Total MRAD-12 2"d / 2010 Air Filter ug/Filter (mass) 208 184 114- 264 Acceptable Uranium-Total MRAD-12 2 d /2010 Air Filter ug/Filter (mass) 175 184 114-264 Acceptable Uranium-Total MRAD-12 2"d /2010 Water ug/L (mass) 213 182 143-225 Acceptable Uranium-Total MRAD-12 2"d /2010 Water ug/L (mass) 198 182 143-225 Acceptable MRAD-12 2 nd / 2010 Soil pCi/kg Zinc-65 2790 2470 1960-3310 Acceptable MRAD-12 2nd / 2010 Vegetation pCi/kg Zinc-65 1630 1360 983- 1860 Acceptable MRAD-12 2nd / 2010 Air Filter pCi/Filter Zinc-65 462 389 269 -539 Acceptable MRAD-12 2"d / 2010 Water pCi/L Zinc-65 632 533 452 -664 Acceptable Not RAD -82 3 rd /2 0 1 0 Water pCi/L Barium-133 112.0 89.1 75.0 -98.0 Acceptable Not RAD -82 3 rd /2 0 1 0 Water pCi/L Cesium-134 115.0 88.3 72.4-97.1 Acceptable Not RAD -82 3 ,d / 2010 Water pCi/L Cesium-137 271 210 189-232 Acceptable Not RAD -82 3 / 2010 Water pCi/L Cobalt-60 98.4 72.8 65.5 -82.5 Acceptable RAD -82 3 rd/ 2010 Water pCi/L Gross Alpha 65.5 61.1 32.0 -75.9 Acceptable RAD -82 3 rd/ 2010 Water pCi/L Gross Beta 56.7 56.4 38.6 -63.6 Acceptable RAD -82 3 rd / 2010 Water pCi/L Iodine-131 32.2 28.4 23.6-33.3 Acceptable RAD -82 3 rd / 2010 Water pCi/L Radium-226 15.9 17.1 12.7-19.6 Acceptable RAD -82 3 d/2010 Water pCi/L Radium-228 18.9 16.1 10.8-19.4 Acceptable RAD -82 3 rd / 2010 Water pCi/L Strontium-89 60.6 55.3 44.1 -62.9 Acceptable Not RAD -82 3 rd / 2010 Water pCi/L Strontium-90 47.1 32.8 24.0-38.0 Acceptable 17300-RAD -82 3 d/ 2010 Water pCi/L Tritium 18500 19800 21700 Acceptable Not RAD -82 3 ,d / 2010 Water pCi/L Uranium (Nat) 58.0 49.6 40.2 -55.1 Acceptable Uranium (Nat) Not RAD -82 3 d/ 2010 Water ug/L Mass 89.1 72.3 58.7 -80.4 Acceptable Not RAD -82 3 rd /2010 Water pCi/L Zinc-65 161 110 99.0-131 Acceptable MAPEP-10-MaS22 3 rd / 2010 Soil Bq/kg Americium-241 0.07 0.00 ----- Acceptable MAPEP Not RdF22 3 rd / 2010 Filter Bq/sample Americium-241 0.2637 0.146 0.102 -0.190 Acceptable MAPEP-10-RdV22 3 rd / 2010 Vegetation Bq/sample Americium-241 0.179 0.225 0.158 -0.293 Acceptable MAPEP-10-MaS22 3 rd / 2010 Soil Bq/kg Cesium-134 744.67 733 513-953 Acceptable MAPEP Not RdF22 3 r0 /2010 Filter Bq/sample Cesium-134 4.323 2.13 1.49 -2.77 Acceptable MAPEP-10-RdV22 3 rd /2010 Vegetation Bq/sample Cesium-134 3.098 4.39 3.07 -5.71 Acceptable 0 S S S S S S S S S S S S S S S S S S S S S S S S S S S S S 0 S S S S Laboratories LLC P.O. Box 30712, Charleston, SC 29417 2010 ANNUAL QUALITY ASSURANCE REPORT Page 19 of 51 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Sample Numbher Sample Media Known value Acceptance Range/Ratio Quarter)I Year Unit Analvte / Nuclide GEL Value Evaluation Number Quarter4/

Year MAPEP-10-MaS22 3 rd /2010 Soil Bq/kg Cesium-137 831.7 779 545- 1013 Acceptable MAPEP Not RdF22 3 rd /2 0 1 0 Filter Bq/sample Cesium-137 3.070 1.53 1.07-1.99 Acceptable MAPEP-10-RdV22 3 , 2 0 1 0 Vegetation Bq/sample Cesium-137 2.185 3.06 2.14-3.98 Acceptable MAPEP-10-MaS22 3 rd 2010 Soil Bq/kg Cobalt-57 536.0 522 365 -679 Acceptable MAPEP-10-RdV22 3 rd, 2010 Vegetation Bq/sample Cobalt-57 0.009 0.00 --- Acceptable MAPEP-10-MaS22 3 d / 2010 Soil Bq/kg Cobalt-60 670.3 622 435-809 Acceptable MAPEP Not RdF22 3 rd /2010 Filter Bq/sample Cobalt-60 5.187 2.473 1.731 -3.215 Acceptable MAPEP-10-RdV22 3 r, 2010 Vegetation Bq/sample Cobalt-60 3.076 3.27 2.29-4.25 Acceptable MAPEP-10-GrF22 3 , 2010 Filter Bq/sample Gross Alpha 0.303 0.427 >0.0 -0.854 Acceptable MAPEP-10-GrF22 3 rd /2010 Filter Bq/sample Gross Beta 1.433 1.29 0.65- 1.94 Acceptable MAPEP-10-MaS22 3 rd/ 2010 Soil Bq/kg Iron-55 83.6 0.00 --- Acceptable MAPEP-10-MaS22 3 rd / 2010 Soil Bq/kg Manganese-54 940.7 849 594- 1104 Acceptable MAPEP Not RdF22 3 d /2010 Filter Bq/sample Manganese-54 6.483 3.02 2.11 -3.93 Acceptable MAPEP-10-RdV22 3 rd/ 2010 Vegetation Bq/sample Manganese-54 0.004 0.00 ----- Acceptable MAPEP-10-MaS22 3 ,d/ 2010 Soil Bq/kg Nickel-63 489 " 477 334-620 Acceptable MAPEP-10-MaS22 3 rd /2 0 1 0 Soil Bq/kg Plutonium-238 17.9 24 16.9-31.3 Acceptable MAPEP-10-RdF22 3 rd/ 2010 Filter Bq/sample Plutonium-238 0.010 0.0010 ----- Acceptable MAPEP-10-RdV22 3 rd /2010 Vegetation Bq/sample Plutonium-238 0.149 0.160 0.112 -0.208 Acceptable MAPEP Plutonium-MaS22 3 d / 2010 Soil Bq/kg 239/240 0.21 0.00 --- Acceptable MAPEP Plutonium-0.0582 -Not RdF22 3 rd/ 2010 Filter Bq/sample 239/240 0.164 0.0832 0.1082 Acceptable MAPEP Plutonium-RdV22 3 rd/ 2010 Vegetation Bq/sample 239/240 0.0026 0.0008 ----- Acceptable MAPEP-10-MaS22 3 rd /2010 Soil Bq/kg Potassium-40 638.7 559 391 -727 Acceptable MAPEP-10-MaS22 3 rd / 2010 Soil Bq/kg Strontium-90 261.0 288 202-374 Acceptable MAPEP-10-RdF22 3 rd / 2010 Filter Bq/sample Strontium-90

-0.004 0.00 ----- Acceptable MAPEP-10-RdV22 3 rd/ 2010 Vegetation Bq/sample Strontium-90 0.033 0.00 ----- Acceptable MAPEP-10-MaS22 3 rd/ 2010 Soil Bq/kg Technetium-99

-3.0 0.00 --.. Acceptable MAPEP-10-MaS22 3 rd/ 2010 Soil Bq/kg Uranium-234/233 65.27 60 42-78 Acceptable MAPEP Not RdF22 3 rd/ 2010 Filter Bq/sample Uranium-234/233 0.137 0.068 0.048 -0.088 Acceptable MAPEP-10-RdV22 3 rd / 2010 Vegetation Bq/sample Uranium-234/233 0.184 0.216 0.151 -0.281 Acceptable MAPEP 0.0267 -Not RdF22 3 rd /2010 Filter ug/sample Uranium-235 0.0756 0.0381 0.0495 Acceptable MAPEP 0.0875 -RdV22 3 rd/ 2010 Vegetation ug/sample Uranium-235 0.090 0.1250 0.1625 Acceptable Laboratories LLC P.O. Box 30712, Charleston, SC 29417 2010 ANNUAL QUALITY ASSURANCE REPORT Page 20 of 51 Sample Number Sample Media Analyte / Nuclide Acceptance Known value Range/Ratio Quarter I Year Unit GEL Value Evaluation MAPEP-10-MaS22 3 d / 2010 Soil Bq/kg Uranium-238 70.23 64 45-83 Acceptable MAPEP Not RdF22 3 d / 2010 Filter ug/sample Uranium-238 10.2 5.7 4.0 -7.4 Acceptable MAPEP Not RdF22 3 / 2010 Filter Bq/sample Uranium-238 0.147 0.071 0.050 -0.092 Acceptable MAPEP Not RdV22 3 rd / 2010 Vegetation ug/sample Uranium-238 12.5 17.9 12.5-23.3 Acceptable MAPEP-10-RdV22 3 rd / 2010 Vegetation Bq/sample Uranium-238 0.184 0.223 0.156 -0.290 Acceptable MAPEP Not RdF22 3 rd /2010 Filter ug/sample Uranium-Total 10.2 5.7 4.0-7.4 Acceptable MAPEP-10-RdV22 3 rd / 2010 Vegetation ug/sample Uranium-Total 13.9 18.0 12.6-23.4 Acceptable MAPEP-10-MaS22 3 rd / 2010 Soil Bq/kg Zinc-65 -2.89 0.0 ----- Acceptable MAPEP-10-RdF22 3 rd / 2010 Filter Bq/sample Zinc-65 -0.106 0.00 --- Acceptable MAPEP-10-RdV22 3 rd /2010 Vegetation Bq/sample Zinc-65 6.844 7.10 4.97 -9.23 Acceptable E7119-278 3 rd /2010 Milk pCi/L Cesium-134 1.37E+02 1.26E+02 1.09 Acceptable E7119-278 3 rd /2010 Milk pCi/L Cesium-137 1.68E+02 1.50E+02 1.12 Acceptable E7119-278 3 d /2010 Milk pCi/L Cobalt-58 1.13E+02 1.01E+02 1.12 Acceptable E7119-278 3 r /d2010 Milk pCi/L Cobalt-60 2.14E+02 1.97E+02 1.09 Acceptable E7119-278 3 rd /2010 Milk pCi/L Cr-51 3.901E+02 3.39E+02 1.15 Acceptable E7117-278 3 rd /2010 Milk pCi/L Iodine-131 7.97E+01 8.02E+01 0.99 Acceptable E7119-278 3 rd /2010 .Milk pCi/L Iodine-131 1.06E+02 9.69E+01 1.09 Acceptable Not E7119-278 3 d /2010 Milk pCi/L Iron-59 1.55E+02 1.19E+02 1.30 Acceptable E7119-278 3 rd /2010 Milk pCi/L Manganese-54 1.99E+02 1.69E+02 1.18 Acceptable E7118-278 3 rd /2010 Milk pCi/L Strontium-89 7.95E+01 9.34E+01 0.85 Acceptable E7118-278 3 rd /2010 Milk pCi/L Strontium-90 1.57E+01 1.67E+01 0.94 Acceptable E7119-278 3 rd /2 0 1 0 Milk pCi/L Zinc-65 2.40E+02 2.06E+02 1.17 Acceptable 090710N 3 d /2010 Water pCi/L Barium-133 86.9 92.9 78.3- 102 Acceptable Not 090710N 3 d/ 2010 Water pCi/L Cesium-134 93.8 79.4 65.0 -87.3 Acceptable 09071 ON 3 d/ 2010 Water pCi/L Cesium-137 55.5 54.6 49.1 -62.9 Acceptable 090710N 3 rd/2010 Water pCi/L Cobalt-60 120.0 117 105-131 Acceptable 090710N 3 rd / 2010 Water pCi/L Uranium (Nat) 34.9 33.8 27.3- 37.8 Acceptable Uranium (Nat)090710N 3 rd / 2010 Water ug/L Mass 48.6 49.3 39.8 -55.1 Acceptable Not 090710N 3 d /2010 Water pCi/L Zinc-65 129 99.5 89.6-119 Acceptable MAPEP-10-MaW22 3 rd /2010 Water Bq/L Americium-241 1.0323 1.30 0.91 -1.69 Acceptable MAPEP-10-MaW22 3 rd / 2010 Water Bq/L Cesium-134 0.027 0.00 ----- Acceptable MAPEP-10-MaW22 3 rd / 2010 Water Bq/L Cesium-137 63.1 60.6 42.4-78.8 Acceptable MAPEP-10-MaW22 3 rd / 2010 Water Bq/L Cobalt-57 29.2 28.3 19.8 -36.8 Acceptable MAPEP-1 0-MAW22 3 rd / 2010 Water Bq/L Cobalt-60

-0.021 0.00 -- Acceptable S 0 0 S 0 S 0 0 0 S S S S S S S S S S S S S S S S S S 0 0 ~Laboratories LLC 0 P.O. Box 30712, Charleston, SC 29417 0 2010 ANNUAL QUALITY ASSURANCE REPORT Page 21 of 51 0 0 0 0 0 0 0 0 S 0 0 0 0 0 0 Sample Number Sample Quarter/Year Media Known value Acceptance Range/Ratio Unit Analyte I Nuclide GEL Value Evaluation MAPEP-10-GrW22 3 ,d /2010 Water Bq/L Gross Alpha 0.559 0.676 >0.0 -1.352 Acceptable MAPEP-10-GrW22 3 r/2 0 1 0 Water Bq/L Gross Beta 3.110 3.09 1.55-4.64 Acceptable MAPEP-10-MaW22 3 rd /2010 Water Bq/L Iron-55 0.24 0.00 ----- Acceptable MAPEP-10-MaW22 3rd / 2010 Water Bq/L Manganese-54 28.83 26.9 18.8-35.0 Acceptable MAPEP-10-MaW22 3 rd /2010 Water Bq/L Nickel-63 57.7 59.9 41.9 -77.9 Acceptable MAPEP Not MaW22 3 rd /2010 Water Bq/L Plutonium-238 1.213 1.93 1.35-2.51 Acceptable MAPEP Plutonium-MaW22 3 rd / 2010 Water Bq/L 239/240 0.026 0.009 Acceptable MAPEP-10-MaW22 3 rd / 2010 Water Bq/L Strontium-90

-0.01 0.00 ---. Acceptable MAPEP-10-MaW22 3 rd / 2010 Water Bq/L Technetium-99

-0.4 0.00 Acceptable MAPEP-10-MaW22 3 rd / 2010 Water Bq/L Tritium 107 90.8 63.6 -118.0 Acceptable MAPEP-10-MaW22 3 d / 2010 Water Bq/L Uranium-234/233 1.163 1.22 0.85- 1.59 Acceptable MAPEP-10-MaW22 3 rd /2010 Water Bq/L Uranium-238 1.223 1.25 0.88 -1.63 Acceptable MAPEP-10-MaW22 3 rd / 2010 Water Bq/L Zinc-65 45.9 40.7 28.5 -52.9 Acceptable E7195-278 4' /2010 Milk pCi/L Cerium-141 1.39E+02 1.30E+02 1.07 Acceptable E7195-278 4' /2010 Milk pCi/L Cesium-134 9.85E+01 9.30E+01 1.06 Acceptable E7196-278 4d" /2010 Water pCi/L Cesium-134 1.22E+02 1.18E+02 1.03 Acceptable E7195-278 4"t /2010 Milk pCi/L Cesium-137 9.87E+01 9.45E+01 1.04 Acceptable E7196-278 4t"' /2010 Water pCi/L Cesium-137 1.24E+02 1.20E+02 1.03 Acceptable E7195-278 4t" /2010 Milk pCi/L Cobalt-58 7.02E+01 7.37E+01 0.95 Acceptable E7196-278 4' /2010 Water pCi/L Cobalt-58 9.63E+01 9.35E+01 1.03 Acceptable E7195-278 4' / 2010 Milk pCi/L Cobalt-60 1.77E+02 1.71E+02 1.04 Acceptable E7196-278 4t" / 2010 Water pCi/L Cobalt-60 2.34E+02 2.17E+02 1.08 Acceptable E7195-278 4"t /2010 Milk pCi/L Cr-51 2.48E+02 2.34E+02 1.06 Acceptable E7196-278 4" / 2010 Water pCi/L Cr-51 3.12E+02 2.97E+02 1.05 Acceptable E7193-278 4h" / 2010 Cartridge pCi Iodine-131 5.97E+01 6.02E+01 0.99 Acceptable E7195-278 4" / 2010 Milk pCi/L Iodine-131 1.01E+02 9.41E+02 1.07 Acceptable E7196-278 4" /2010 Water pCi/L Iodine-131 7.24E+01 6.44E+01 1.12 Acceptable E7195-278 4"' /2010 Milk pCi/L Iron-59 1.02E+02 9.11E+01 1.12 Acceptable E7196-278 4" / 2010 Water pCi/L Iron-59 1.42E+02 1.16E+02 1.23 Acceptable E7195-278 4" / 2010 Milk pCi/L Manganese-54 1.20E+02 1.19E+02 1.01 Acceptable E7196-278 4" / 2010 Water pCi/L Manganese-54 1.70E+02 1.52E+02 1.12 Acceptable E7194-278 4"' / 2010 Milk pCi/L Strontium-89 7.62E+01 9.28E+01 0.82 Acceptable E7194-278 4" /2010 Milk pCi/L Strontium-90 1.30E+01 1.47E+01 0.88 Acceptable E7195-278 4" /2010 Milk pCi/L Zinc-65 2.37E+02 2.04E+02 1.16 Acceptable E7196-278 4t" /2010 Water pCi/L Zinc-65 2.97E+02 2.59E+02 1.15 Acceptable NY-337 3762 4" / 2010 Water pCi/L Barium-133 50.5 50.9 43.3 -59.4 Acceptable Laboratories LLC P.O. Box 30712, Charleston, SC 29417 2010 ANNUAL QUALITY ASSURANCE REPORT Page 22 of 51 Sample Number Sample Media Known value Acceptance Range/Ratio Evaluation Quarter / Year Unit Analyte I Nuclide GEL Value Not NY-337 3762 4"' / 2010 Water pCi/L Cesium-1 34 51.0 42.0 35.8 -49.2 Acceptable NY-337 3762 4t"' / 2010 Water pCi/L Cesium-137 29.3 27.3 22.4 -32.1 Acceptable NY-337 3762 4t' /2010 Water pCi/L Cobalt-60 13.6 13.2 9.72-16.7 Acceptable NY-337 3763 4t' /2010 Water pCi/L Gross Alpha 32.8 41.6 24.3-58.9 Acceptable NY-337 3763 4th /2010 Water pCi/L Gross Beta 29.3 27.5 18.3-36.7 Acceptable Not NY-337 3764 4"h /2010 Water pCi/L Iodine-131 13.4 18.2 14.7-21.7 Acceptable Not NY-337 3764 4"' /2010 Water pCi/L Iodine-131 13.5 18.2 14.7-21.7 Acceptable Not NY-337 3765 4 h / 2010 Water pCi/L Radium-226 13.2 10.6 8.30 -12.9 Acceptable NY-337 3765 4h / 2010 Water pCi/L Radium-228 6.51 6.07 3.91 -8.22 Acceptable Not NY-337 3761 4 h / 2010 Water pCi/L Strontium-89 47.8 61.3 51.3- 71.4 Acceptable NY-337 3761 4h /2010 Water pCi/L Strontium-90 12.0 14.9 11.0-18.8 Acceptable 13500-NY-337 3766 4t' / 2010 Water pCi/L Tritium 14400 15300 17000 Acceptable NY-337.3765 4t' /2010 Water pCi/L Uranium (activity) 17.5 16.0 13.2-18.7 Acceptable NY-337 3762 4th / 2010 Water pCi/L Zinc-65 134 122 104- 138 Acceptable 10051ON 4t' / 2010 Water pCi/L Strontium-89 49.9 51.4 40.6-58.9 Acceptable 10051ON 4t" / 2010 Water pCi/L Strontium-90 35.4 41.3 30.4-47.5 Acceptable RAD -83 4t' /2010 Water pCi/L Strontium-90 41.5 43 31.7 -49.3 Acceptable 112210H1 4h /2010 Water pCi/L Barium-133 66.3 65.9 54.9-72.5 Acceptable 112210H1 4"' /2010 Water pCi/L Cesium-134 71.6 71.6 58.4-78.8 Acceptable 112210H1 4"' /2010 Water pCi/L Cesium-137 151 146 131 -163 Acceptable 112210H1 4"' / 2010 Water pCi/L Cobalt-60 90.2 84.5 76.0 -95.3 Acceptable 112210H1 4"' /2010 Water pCi/L Zinc-65 207 186 167-219 Acceptable 112210H2 4"' /2010 Water pCi/L Plutonium-238 102.0 108 81.7-134 Acceptable 112210H2 4"h /2010 Water pCi/L Plutonium-239 77.6 86.3 66.8- 107 Acceptable MRAD-13 4t"' /2010 Soil pCi/kg Actinium-228 1460 1830 1170-2580 Acceptable MRAD-13 4t" / 2010 Soil pCi/kg Americium-241 845 1120 669-1440 Acceptable MRAD-13 4" / 2010 Soil pCi/kg Americium-241 928 1120 669-1440 Acceptable MRAD-13 4" / 2010 Vegetation pCi/kg Americium-241 4000 4760 2710-6540 Acceptable MRAD-13 4"' / 2010 Air Filter pCi/Filter Americium-241 70.1 74.1 43.3-102 Acceptable MRAD-13 4"' /2010 Water pCi/L Americium-241 164 176 120-238 Acceptable MRAD-13 4t' /2010 Water pCi/L Americium-241 178 176 120-238 Acceptable Not MRAD-13 4"' /2010 Soil pCi/kg Bismuth-212

< 538 2070 543- 3100 Acceptable MRAD-13 4t"' /2010 Soil pCi/kg Bismuth-214 818 983 603- 1410 Acceptable MRAD-13 4t' / 2010 Soil pCi/kg Cesium-134 2230 2240 1440-2700 Acceptable MRAD-13 4h / 2010 Vegetation pCi/kg Cesium-134 1200 1040 595- 1440 Acceptable MRAD-13 4"' / 2010 Air Filter pCi/Filter Cesium-134 405 388 253-480 Acceptable MRAD-13 4"' / 2010 Water pCi/L Cesium-134 495 492 363-565 Acceptable 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 MLaboratories LLC P.O. Box 30712, Charleston, SC 29417 2010 ANNUAL QUALITY ASSURANCE REPORT Page 23 of 51 0 0 0 S 0 0 0 0 0 0 0 0 S 0 0 0 0 0 0 0 0 Sample Number Sample Media Known value Acceptance Range/Ratio Quarter / Year Unit Analyte / Nuclide GEL Value Evaluation MRAD-13 4 th /2010 Soil pCi/kg Cesium-137 3400 3530 2700-4580 Acceptable MRAD-13 4 th /2010 Vegetation pCi/kg Cesium-137 1420 1260 924- 1750 Acceptable MRAD-13 4" /2010 Air Filter pCi/Filter Cesium-137 532 514 386-675 Acceptable MRAD-13 4 h / 2010 Water pCi/L Cesium-137 620 625 531 -749 Acceptable MRAD-13 4" /2010 Soil pCi/kg Cobalt-60 4580 4780 3480-6420 Acceptable MRAD-13 4" /2010 Vegetation pCi/kg Cobalt-60 1130 1010 683- 1450 Acceptable MRAD-13 4" /2010 Air Filter pCi/Filter Cobalt-60 531 479 371 -598 Acceptable MRAD-13 4 h / 2010 Water pCi/L Cobalt-60 732 714 622-844 Acceptable MRAD-13 4 h / 2010 Air Filter pCi/Filter Gross Alpha 74.2 52.3 27.1 -78.7 Acceptable MRAD-13 4"h / 2010 Water pCi/L Gross Alpha 145 146 64.8-216 Acceptable MRAD-13 4" / 2010 Air Filter pCi/Filter Gross Beta 55.6 52.7 32.5 -77.0 Acceptable MRAD-13 4" /2010 Water pCi/L Gross Beta 171 143 83.6-210 Acceptable MRAD-13 4" / 2010 Air Filter pCi/Filter Iron-55 707 626 275-974 Acceptable Not MRAD-13 4"' /2010 Water pCi/L Iron-55 1220 825 480-1100 Acceptable MRAD-13 4"' / 2010 Soil pCi/kg Lead-212 1550 1640 1060-2310 Acceptable MRAD-13 4' /2010 Soil pCi/kg Lead-214 1030 969 580- 1440 Acceptable MRAD-13 4"h /12010 Soil pCi/kg Manganese-54

< 38.0 0.00 ----- Acceptable MRAD-13 4h / 2010 Vegetation pCi/kg Manganese-54

< 39.8 0.00 ----- Acceptable MRAD-13 4J /2010 Water pCi/L Manganese-54

< 5 0.00 ---- Acceptable MRAD-13 4" /2010 Soil pCi/kg Plutonium-238 1170 1280 733- 1800 Acceptable MRAD-13 4" / 2010 Vegetation pCi/kg Plutonium-238 3740 4740 2560-6940 Acceptable MRAD-13 4T / 2010 Air Filter pCi/Filter Plutonium-238 70.8 72.9 50.0-95.8 Acceptable MRAD-13 4 Th / 2010 Water pCi/L Plutonium-238 157 162 122-201 Acceptable MRAD-13 4 Th /2010 Soil pCi/kg Plutonium-239 1070 1180 805 -1570 Acceptable MRAD-13 4" / 2010 Vegetation pCi/kg Plutonium-239 3590 4470 2770-6100 Acceptable MRAD-13 4 T" / 2010 Air Filter pCi/Filter Plutonium-239 65.6 69.6 50.5-90.1 Acceptable MRAD-13 4 T /2010 Water pCi/L Plutonium-239 136 148 114- 183 Acceptable MRAD-13 4 T / 2010 Soil pCi/kg Potassium-40 10500 10700 7760- 14500 Acceptable 16200-MRAD-13 4 T /2010 Vegetation pCi/kg Potassium-40 29000 22600 32000 Acceptable MRAD-13 4"' / 2010 Soil pCi/kg Strontium-90 10953 9270 3350- 15100 Acceptable MRAD-13 4" / 2010 Vegetation pCi/kg Strontium-90 9800 7810 4360- 10400 Acceptable MRAD-13 4" / 2010 Air Filter pCi/Filter Strontium-90 80.2 159 70.0-247 Acceptable MRAD-13 4" / 2010 Water pCi/L Strontium-90 817 921 585- 1230 Acceptable MRAD-13 4"' /2010 Soil pCi/kg Thorium-234 1010 1340 425-2550 Acceptable 14100 -MRAD-13 4" /2010 Water pCi/L Tritium 20900 21600 31900 Acceptable MRAD-13 4 Th / 2010 Soil pCi/kg Uranium-234 899 1360 862- 1690 Acceptable MRAD-13 4 h /2010 Soil pCi/kg Uranium-234 1190 1360 862- 1690 Acceptable MRAD-13 4' /2010 Soil pCi/kg Uranium-234 1110 1360 862- 1690 Acceptable Laboratories LLC P.O. Box 30712, Charleston, SC 29417 2010 ANNUAL QUALITY ASSURANCE REPORT Page 24 of 51 Sample Number Sample Media Analyte / Nuclide Known value Acceptance Range/Ratio Quarter / Year Unit GEL Value Evaluation MRAD-13 4"' / 2010 Vegetation pCi/kg Uranium-234 3600 4010 2750-5320 Acceptable MRAD-13 4"' /2010 Air Filter pCi/Filter Uranium-234 73.5 71.8 45.2-106 Acceptable MRAD-13 4"' /2010 Air Filter pCi/Filter Uranium-234 69.9 71.8 45.2-106 Acceptable MRAD-13 4"' / 2010 Water pCi/L Uranium-234 106 109 82.2 -140 Acceptable MRAD-13 4" /2010 Water pCi/L Uranium-234 106 109 82.2- 140 Acceptable MRAD-13 4"' / 2010 Water pCi/L Uranium-234 104 109 82.2- 140 Acceptable MRAD-13 4"' /2010 Soil pCi/kg Uranium-238 1010 1340 819- 1700 Acceptable MRAD-13 4"' /2010 Soil pCi/kg Uranium-238 1080 1340 819- 1700 Acceptable MRAD-13 4"' /2010 Soil pCi/kg Uranium-238 903 1340 819- 1700 Acceptable MRAD-13 4"' /2010 Soil poCi/kg Uranium-238 1090 1340 819- 1700 Acceptable MRAD-13 4"h / 2010 Vegetation pCi/kg Uranium-238 4000 3980 2800-5030 Acceptable MRAD-13 4"0 /2010 Air Filter pCi/Filter Uranium-238 75.5 71.2 45.6- 101 Acceptable MRAD-13 4"' / 2010 Air Filter pCi/Filter Uranium-238 66.8 71.2 45.6-101 Acceptable MRAD-13 4"' / 2010 Water pCi/L Uranium-238 107 108 82.5-134 Acceptable MRAD-13 4"' /2010 Water pCi/L Uranium-238 114 108 82.5-134 Acceptable MRAD-13 4"' /2010 Water pCi/L Uranium-238 108 108 82.5-134 Acceptable MRAD-13 4"' /2010 Soil pCi/kg Uranium-Total 2027.4 2770 1580-3740 Acceptable MRAD-13 4"' /2010 Soil ug/kg Uranium-Total 2093 2770 1580-3740 Acceptable MRAD-13 4"' / 2010 Soil pCi/kg Uranium-Total 2253 2770 1580-3740 Acceptable MRAD-13 4t" / 2010 Air Filter pCi/Filter Uranium-Total 149 146 74.6-232 Acceptable MRAD-13 4"' / 2010 Air Filter pCi/Filter Uranium-Total 142 146 74.6-232 Acceptable MRAD-13 4"' /2010 Water pCi/L Uranium-Total 218 221 159-294 Acceptable MRAD-13 4"' / 2010 Water pCi/L Uranium-Total 226.8 221 159-294 Acceptable MRAD-13 4"' /2010 Water pCi/L Uranium-Total 217 221 159-294 Acceptable Uranium-Total MRAD-13 4"' /2010 Soil ug/kg (mass) 3240 4040 2220-5080 Acceptable Uranium-Total MRAD-13 4"' / 2010 Soil pCi/kg (mass) 2685 4040 2220-5080 Acceptable Uranium-Total MRAD-13 4"' / 2010 Soil ug/kg (mass) 3241 4040 2220-5080 Acceptable Uranium-Total MRAD-13 4"' / 2010 Soil ug/kg (mass) 2820 4040 2220-5080 Acceptable Uranium-Total MRAD-13 4"' /2010 Vegetation ug/kg (mass) 12000 11900 8180-15400 Acceptable Uranium-Total MRAD-13 4"' / 2010 Air Filter ug/Filter (mass) 224.5 213 132-306 Acceptable Uranium-Total MRAD-13 4"' / 2010 Air Filter ug/Filter (mass) 201 213 132-306 Acceptable Uranium-Total MRAD-13 4"' / 2010 Air Filter ug/Filter (mass) 192 213 132-306 Acceptable Uranium-Total MRAD-13 4"' / 2010 Water ug/L (mass) 318 323 253-399 Acceptable Uranium-Total MRAD-13 4"' / 2010 Water ug/L (mass) 342 323 253- 399 Acceptable Uranium-Total MRAD-13 4"' /2010 Water ug/L (mass) 321 323 253-399 Acceptable MRAD-13 4"' / 2010 Soil pCi/kg Zinc-65 2420 2300 1820-3080 Acceptable 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 S 0 S0 0 0 S 0 0 0 0 0 0 0 0 S 0 0 0 0 0 0 Laboratories LLC P.O. Box 30712, Charleston, SC 29417 2010 ANNUAL QUALITY ASSURANCE REPORT Page 25 of 51 Sample Number Sample Media Known value Acceptance Range/Ratio Quarter / Year Unit Analyte / Nuclide GEL Value Evaluation MRAD-13 4t' /2010 Vegetation pCi/kg Zinc-65 1380 1210 874- 1650 Acceptable MRAD-13 4" /2010 Air Filter pCi/Filter Zinc-65 552 465 322-644 Acceptable MRAD-13 4" /2010 Water pCi/L Zinc-65 557 489 414-610 Acceptable 122810P 4" /2010 Water pCi/L Barium-133 70.9 68.9 57.5-75.8 Acceptable 122810P 4 h /2010 Water pCi/L Cesium-134 43.0 43.2 34.5 -47.5 Acceptable 122810P 4th /2010 Water pCi/L Cesium-137 122 123 111 -138 Acceptable 122810P 4t' / 2010 Water pCi/L Cobalt-60 58.7 53.4 48.1 -61.3 Acceptable 122810P 4' /2010 Water pCi/L Zinc-65 116 102 91.8-122 Acceptable

' Laboratories LLC P.O. Box 30712, Charleston, SC 29417 2010 ANNUAL QUALITY ASSURANCE REPORT 0 0 0 0 Page 26 of 51 0 TABLE 2 2010 ECKERT & ZIEGLER ANALYTICS PERFORMANCE EVALUATION RESULTS

SUMMARY

Acceptance Sample Quarter / Sample Analyte i GEL Known Range/Number Year Media Unit Nuclide Value value Ratio Evaluation E7054-278 2 nd /2010 Milk pCi/L Cerium-141 2.61E+02 2.61E+02 1.00 Acceptable E7055-278 2"d / 2010 Water pCi/L Cerium-141 2.78E+02 2.63E+02 1.06 Acceptable E6924-278 2 nd /2010 Milk pCi/L Cerium-141 2.01E+02 2.02E+02 0.99 Acceptable E6925-278 2nd / 2010 Water pCi/L Cerium-141 2.04E+02 2.04E+02 1.00 Acceptable E6924-278 2nd /2010 Milk pCi/L Cerium-141 2.01E+02 2.02E+02 0.99 Acceptable E6925-278 2" /2010 Wate pCi/L Cerium-141 2.04E+02 2.04E+02 1.00 Acceptable E7054-278 2 nd /2010 Milk pCi/L Cesium-137 1.61E+02 1.58E+02 1.02 Acceptable E7055-278 2 nd /2010 Water pCi/L Cesium-137 1.71E+02 1.59E+02 1.07 Acceptable E6924-278 2 nd /2010 Milk pCi/L ICesium-134 2.41 E+02 2.53E+02 0.95 Acceptable E6925-278 2 nd /2010 Water pCi/L Cesium-134 2.56E+02 2.55E+02 1.00 Acceptable E6924-278 2nd /2010 Milk pCi/L Cesium-134 2.41E+02 2.53E+02 0.95 Acceptable E6925-278 2"d / 2010 Water pCi/L Cesium-134 2.56E+02 2.55E+02 1.00 Acceptable E7054-278 2"' / 2010 Milk pCi/L Cesium-134 1.76E+02 1.78E+02 0.99 Acceptable E7055-278 2 nd /2010 Water pCi/L Cesium-134 1.85E+02 1.79E+02 1.03 Acceptable E6924-278 2 d /2010 Milk pCi/L Cesium-137 1.71E+02 1.79E+02 0.96 Acceptable E6925-278 2 /2010 Water pCi/L Cesium-137 1.81E+02 1.81E+02 1.00 Acceptable E6924-278 2 nd /2010 Milk pCi/L Cesium-137 1.71E+02 1.79E+02 0.96 Acceptable E6925-278 2 / 2010 Water pCi/L Cesium-137 1.81 E+02 1.81 E+02 1.00 Acceptable E7054-278 2nd /2010 Milk pCi/L Chromium-51 3.81E+02 3.61E+02 1.05 Acceptable E7055-278 2 nd /2010 Water pCi/L Chromium-51 3.86E+02 3.64E+02 1.06 Acceptable E6924-278 2 nd /2010 Milk pCi/L Chromium-51I 5.54E+02 5.48E+02 1.01 Acceptable 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 L Laboratories LLC P.O. Box 30712, Charleston, SC 29417 2010 ANNUAL QUALITY ASSURANCE REPORT Page 27 of 51 Sample Number Quarter Sample Year Media Analyte /Nuclide Acceptance Range/Ratio GEL Value Known value Unit Evaluation S 0 0 0 S 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 E6924-278 2 nd /2010 Milk pCi/L Chromium-51 5.54E+02 5.48E+02 1.01 Acceptable E6925-278 2 nd /2010 Water pCi/L Chromium-51 5.78E+02 5.54E+02 1.04 Acceptable E7054-278 2 d /2010 Milk pCi/L Cobalt-58 1.45E+02 1.43E+02 1.02 Acceptable E7055-278 2nd /2010 Water pCi/L Cobalt-58 1.51E+02 1.44E+02 1.05 Acceptable E6924-278 2 nd /2010 Milk pCi/L Cobalt-58 2.03E+02 2.11E+02 0.96 Acceptable E6925-278 2 nd / 2010 Water pCi/L Cobalt-58 2.19E+02 2.13E+02 1.03 Acceptable E6924-278 2 nd /2010 Milk pCi/L Cobalt-58 2.03E+02 2.11E+02 0.96 Acceptable E6925-278 2 nd /2010 Water pCi/L Cobalt-58 2.19E+02 2.13E+02 1.03 Acceptable E7054-278 2 nd / 2010 Milk pCi/L Cobalt-60 1.90E+02 1.83E+02 1.04 Acceptable E7055-278 2°n /2010 Water pCi/L Cobalt-60 1.94E+02 1.85E+02 1.05 Acceptable E6924-278 2"' / 2010 Milk pCi/L Cobalt-60 2.47E+02 2.56E+02 0.97 Acceptable E6925-278 2 d / 2010 Water pCi/L Cobalt-60 2.67E+02 2.58E+02 1.03 Acceptable E6924-278 2 d / 2010 Milk pCi/L Cobalt-60 2.47E+02 2.56E+02 0.97 Acceptable E6925-278 2 nd /2010 Water pCi/L Cobalt-60 2.67E+02 2.58E+02 1.03 Acceptable E7052-278 2 n1 /2010 Cartridge pCi Iodine-131 8.58E+01 8.54E+01 1.00 Acceptable E7054-278 2nd /2010 Milk pCi/L Iodine-131 6.91E+01 7.40E+01 0.93 Acceptable E7055-278 2 /2010 Water pCi/L Iodine-131 8.12E+01 7.22E+01 1.12 Acceptable E6922-278 2"d /2010 Cartridge pCi Iodine-131 9.02E+01 9.39E+01 0.96 Acceptable E6924-278 2"n1 /2010 Milk pCi/L Iodine-131 8.25E+01 8.73E+01 0.95 Acceptable E6925-278 2" /2010 Water pCi/L Iodine-131 1.12E+02 9.61E+01 1.04 Acceptable E6922-278 2" /2010 Cartridge pCi Iodine-131 9.02E+01 9.39E+01 0.96 Acceptable E6924-278 2" /2010 Milk pCi/L Iodine-131 8.25E+01 8.73E+01 0.95 Acceptable E6925-278 2 nd /2010 Water pCi/L Iodine-131 1.OOE+02 9.61E+01 1.04 Acceptable E7054-278 2 nd /2010 Milk pCi/L Iron-59 1.60E+02 1.37E+02 1.17 Acceptable Laboratories LLC P.O. Box 30712, Charleston, SC 29417 2010 ANNUAL QUALITY ASSURANCE REPORT Page 28 of 51 Acceptance Sample Quarter I Sample Analyte I GEL Known Range/Number Year Media Unit Nuclide Value value Ratio Evaluation E6924-278 2"nd /2010 Milk pCi/L Iron-59 1.88E+02 1.78E+02 1.06 Acceptable E6925-278 2 d /2010 Water pCi/L Iron-59 1.94E+02 1.79E+02 1.08 Acceptable E6924-278 2 nd /2010 Milk pCi/L Iron-59 1.88E+02 1.78E+02 1.06 Acceptable E6925-278 2n1d /2010 Water pCi/L Iron-59 1.94E+02 1.79E+02 1.08 Acceptable E6924-278 2°d /2010 Milk pCi/L Manlanese-54 1.83E+02 1.78E+02 1.03 Acceptable E6925-278 2 nd /2010 Water pCi/L Manganese-54 1.90E+02 1.79E+02 1.06 Acceptable E6924-278 2 nd /2010 Milk pCi/L Manganese-54 1.83E+02 1.78E+02 1.03 Acceptable E6925-278 2"d /2010 Water pCi/L Manganese-54 1.90E+02 1.79E+02 1.06 Acceptable E7054-278 2d /12010 Milk pCiIL Manganese-54 2.10E+02 2.07E+02 1.01 Acceptable E7655-278 2 nd /2010 Water pCi/L Manganese-54 2.30E+02 2.09E+02 1.1 Acceptable E7053-278 2 nd / 2010 Milk pCi/L Strontium-89 7.91E+01 9.28E+01 0.85 Acceptable E6923-278 2 nd /2010 Milk pCi/L Strontium-89 9.73E+01 1.31 E+02 0.75 Acceptable E6923-278 2 nd /2010 Milk pCi/L Strontium-89 9.73E+01 1.31E+02 0.75 Acceptable E7053-278 2 nd /2010 Milk pCi/L Strontium-90 1.12E+01 1.27E+01 0.88 Acceptable E6923-278 2"d /2010 Milk pCi/L Strontium-90 1.38E+01 1.79E+01 0.77 Acceptable E6923-278 2 nd /2010 Milk pCi/L Strontium-90 1.38E+01 1.79E+01 0.77 Acceptable E6924-278 2nd /2010 Milk pCi/L Zinc-65 3.68E+02 3.45E+02 1.07 Acceptable E6925-278 2 nd /2010 Water pCi/L Zinc-65 3.72E+02 3.48E+02 1.07 Acceptable E6924-278 2 nd /2010 Milk pCi/L Zinc-65 3.68E+02 3.45E+02 1.07 Acceptable E6925-278 2°n / 2010 Water pCi/L Zinc-65 3.72E+02 3.48E+02 1.07 Acceptable E7054-278 2 nd /2010 Milk pCi/L Zinc-65 2.71E+02 2.54E+02 1.07 Acceptable E7055-278 2 d /2010 Water pCi/L Zinc-65 2.97E+02 2.56E+02 1.16 Acceptable 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 E7119-278 3 rd /2010 Milk nCi/L Ce.riijm-1 41 1.27F+0t2 1 .10E+02 1.15 E7119-278 3rd/2010 Milk nCi/L Cerium-141 1 27E+02 1.10E+02 1 15 Acceptable 0 0 0 0 0 0 0 0 0 0 0 0 S BLaboratories LLC P.O. Box 30712, Charleston, SC 29417 2010 ANNUAL QUALITY ASSURANCE REPORT Page 29 of 51 Acceptance Sample Quarter / Sample Analyte I GEL Known Range/Number Year Media Unit Nuclide Value value Ratio Evaluation E7119-278 3rd /2010 Milk pCi/L Cesium-137 1.68E+02 1.50E+02 1.12 Acceptable E7119-278 3 ,/2010 Milk pCi/L Chromium-51 3.90E+02 3.39E+02 1.15 Acceptable E7119-278 3 rd/2 0 1 0 Milk pCi/L Cobalt-58 1.13E+02 1.01E+02 1.12 Acceptable E7119-278 3 r'd/2 0 1 0 Milk pCi/L Cobalt-60 2.14E+02 1.97E+02 1.09 Acceptable E7117-278 3 rd /2010 Milk pCi/L Iodine-131 7.97E+01 8.02E+01 0.99 Acceptable E7119-278 3 /d 2 0 1 0 Milk pCi/L Iodine-131 1.06E+02 9.69E+01 1.09 Acceptable E7119-278 3 / 2010 Milk pCi/L Iron-59 1.55E+02 1.19E+02 1.30 Not Acceptable E7119-278 3 ,d / 2 0 1 0 Milk pCi/L Manganese-54 1.99E+02 1.69E+02 1.18 Acceptable E7118-278 3 ,d / 2 0 1 0 Milk pCi/L Strontium-89 7.95E+01 9.34E+01 0.85 Acceptable E7118-278 3 rd / 2010 Milk pCi/L Strontium-90 1.57E+01 1.67E+01 0.94 Acceptable E7119-278 3 rd / 2 0 1 0 Milk pCi/L Zinc-65 2.40E+02 2.06E+02 1.17 Acceptable E7195-278 4" /2010 Milk pCi/L Cerium-141 1.39E+02 1.30E+02 1.07 Acceptable E7196-278 4 h /2010 Water pCi/L Cerium-141 1.74E+02 1.65E+02 1.05 Acceptable E7195-278 4" /2010 Milk pCi/L Cesium-134 9.85E+01 9.30E+01 1.06 Acceptable E7196-278 4"' /2010 Water pCi/L Cesium-134 1.22E+02 1.18E+02 1 .03 Acceptable E7195-278 4 h /2010 Milk pCi/L Cesium-137 9.87E+01 9.45E+01 1.04 Acceptable E7196-278 4" /2010 Water pCi/L Cesium-137 1.24E+02 1.20E+02 1.03 Acceptable E7195-278 4"' /2010 Milk pCi/L Chromium-51 2.48E+02 2.34E+02 1.06 Acceptable E7196-278 4"h / 2010 Water pCi/L Chromium-51 3.12E+02 2.97E+02 1.05 Acceptable E7195-278 4h" /2010 Milk pCi/L Cobalt-58 7.02E+01 7.37E+01 0.95 Acceptable E7196-278 4"' /2010 Water pCi/L Cobalt-58 9.63E+01 9.35E+01 1.03 Acceptable E7195-278 4" /2010 Milk pCi/L Cobalt-60 1.77E+02 1.71E+02 1.04 Acceptable E7196-278 4' / 2010 Water pCi/L Cobalt-60 2.34E+02 2.17E+02 1.08 Acceptable E7193-278 4" / 2010 Cartridge pCi Iodine-131 5.97E+01 6.02E+01 0.99 Acceptable E7195-278 4" /2010 Milk pCi/L Iodine-131 1.01E+02 9.41E+02 1.07 Acceptable E7196-278 4" /2010 Water pCi/L Iodine-131 7.24E+01 6.44E+01 1.12 Acceptable E7195-278 4"' /2010 Milk pCi/L Iron-59 1.02E+02 9.11E+01 1.12 Acceptable Laboratories LLC P.O. Box 30712, Charleston, SC 29417 2010 ANNUAL QUALITY ASSURANCE REPORT Page 30 of 51 Sample Number Quarter /Year Sample Media Analyte /Nuclide GEL Value Known value Acceptance Range/Ratio Unit Evaluation E7195-278 4h /2010 Milk pCi/L Manaianese-54 1.20E+02 1.19E+02 1.01 Acceptable E7196-278 4h /2010 Water pCi/L Manganese-54 1.70E+02 1.52E+02 1.12 Acceptable E7194-278 4t' / 2010 Milk pCi/L Strontium-89 7.62E+01 9.28E+01 0.82 Acceptable E7194-278 4" / 2010 Milk pCi/L Strontium-90 1.30E+01 1.47E+01 0.88 Acceptable E7195-278 4 th / 2010 Milk pCi/L Zinc-65 2.37E+02 2.04E+02 1.16 Acceptable E7196-278 4th /2010 Water pCi/L Zinc-65 2.97E+02 2.59E+02 1.15 Acceptable 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 S S 0 0 0 0 0 0 0 0 0 0 0 0 0 MLaboratories LLC P.O. Box 30712, Charleston, SC 29417 2010 ANNUAL QUALITY ASSURANCE REPORT Page 31 of 51 2010 DEPARTMENT TABLE 3 OF ENERGY MIXED ANALYTE PERFORMANCE EVALUATION PROGRAM (MAPEP) RESULTS

SUMMARY

Acceptance Quarter / Sample GEL Known Range/Sample Number Year Media Unit Analyte I Nuclide Value value Ratio Evaluation MAPEP-10-MaS22 3 rd / 2010 Soil Bq/kg Americium-241 0.07 0.00 .... Acceptable MAPEP-10-MaS22 3 d / 2010 Soil Bq/kg Cesium-134 744.67 733 513-953 Acceptable MAPEP-10-MaS22 3 rd 12010 Soil Bq/kg Cesium-137 831.7 779 545- 1013 Acceptable MAPEP-10-MaS22 3 rd/ 2010 Soil Bq/kg Cobalt-57 536.0 522 365-679 Acceptable MAPEP-10-MaS22 3 rd / 2010 Soil Bq/kg Cobalt-60 670.3 622 435-809 Acceptable MAPEP-10-MaS22 3 rd / 2010 Soil Bq/kg Iron-55 83.6 0.00 ---- Acceptable MAPEP-10-MaS22 3 rd / 2010 Soil Bq/kg Manganese-54 940.7 849 594- 1104 Acceptable MAPEP-10-MaS22 3 rd /2010 Soil Bq/kg Nickel-63 489 477 334-620 Acceptable MAPEP-10-MaS22 3 d/ 2010 Soil Bq/kg Plutonium-238 17.9 24 16.9 -31.3 Acceptable MAPEP-10-MaS22 3 " / 2010 Soil Bq/kg Plutonium-239/240 0.21 0.00 ----- Acceptable MAPEP-10-MaS22 3 ,d /2010 Soil Bq/kg Potassium-40 638.7 559 391 -727 Acceptable MAPEP-10-MaS22 3 " / 2010 Soil Bq/kg Strontium-90 261.0 288 202- 374 Acceptable MAPEP-10-MaS22 3 rd /2010 Soil Bq/kg Technetium-99

-3.0 0.00 ----- Acceptable MAPEP-10-MaS22 3 d / 2010 Soil Bo/ko Uranium-234/233 65.27 60 42-78 Acceptable MAPEP-10-MaS22 3 rd / 2010 Soil Bq/kg Uranium-238 70.23 64 45- 83 Acceptable MAPEP-10-MaS22 3 rd / 2010 Soil Bq/kg Zinc-65 -2.89 0.0 Acceptable MAPEP-10-MaW22 3 rd / 2 0 1 0 Water Bq/L Americium-241 1.0323 1.30 0.91 -1.69 Acceptable MAPEP-10-MaW22 3 d / 2010 Water Bq/L Cesium-134 0.027 0.00 .---- Acceptable MAPEP-10-MaW22 3 ,d/ 2010 Water Bq/L Cesium-137 63.1 60.6 42.4-78.8 Acceptable MAPEP-10-MaW22 3 rd / 2010 Water Bq/L Cobalt-57 29.2 28.3 19.8-36.8 Acceptable MAPEP-10-MaW22 3 rd / 2010 Water Bq/L Cobalt-60

-0.021 0.00 --- Acceptable MAPEP-10-MaW22 3 rd / 2010 Water Bq/L Hydrogen-3 107 90.8 63.6 -118.0 Acceptable MAPEP-10-MaW22 3 rd /2010 Water Bq/L Iron-55 0.24 0.00 -- -----Acceptable MAPEP-10-MaW22 3 rd / 2010 Water Bq/L Manganese-54 28.83 26.9 18.8- 35.0 Acceptable MAPEP-10-MaW22 3 rd / 2010 Water Bq/L Nickel-63 57.7 59.9 41.9-77.9 Acceptable MAPEP-10-MaW22 3 rd /2010 Water Bq/L Plutonium-238 1.213 1.93 1.35-2.51 Not Acceptable MAPEP-10-MaW22 3 rd /2010 Water Bq/L Plutonium-239/240 0.026 0.009 ----- Acceptable MAPEP-10-MaW22 3 / 2010 Water Bq/L Strontium-90

-0.01 0.00 Acceptable MAPEP-10-MaW22 3 rd / 2010 Water Bq/L Technetium-99

-0.4 0.00 ----- Acceptable MAPEP-10-MaW22 3 rd /2 0 1 0 Water Bq/L Uranium-234/233 1.163 1.22 0.85-1.59 Acceptable MAPEP-10-MaW22 3 rd /2010 Water Bq/L Uranium-238 1.223 1.25 0.88-1.63 Acceptable MAPEP-10-MaW22 3 r / 2010 Water Bq/L Zinc-65 45.9 40.7 28.5-52.9 Acceptable MAPEP-10-GrW22 3 'd / 2010 Water Bq/L Gross Alpha 0.559 0.676 >0.0 -1.352 Acceptable MAPEP-10-GrW22 3 rd /, 2 0 1 0 Water Bq/L Gross Beta 3.110 3.09 1.55 -4.64 Acceptable XLaboratories LLC P.O. Box 30712, Charleston, SC 29417 2010 ANNUAL QUALITY ASSURANCE REPORT Page 32 of 51 Quarter /Year Sample Media GEL Value Known value Acceptance Range/Ratio Sample Number Unit Analyte / Nuclide Evaluation MAPEP-10-RdF22 3 /2010 Filter ug/sample Uranium-238 10.2 5.7 4.0 -7.4 Not Acceptable MAPEP-10-RdF22 3 rd / 2010 Filter ug/sample Uranium-Total 10.2 5.7 4.0 -7.4 Not Acceptable MAPEP-10-RdF22 3 rd / 2010 Filter Bq/sample Americium-241 0.2637 0.146 0.102 -0.190 Not Acceptable MAPEP-10-RdF22 3 rd / 2010 Filter Bq/sample Cesium-134 4.323 2.13 1.49-2.77 Not Acceptable MAPEP-10-RdF22 3 ,d / 2 0 1 0 Filter Bq/sample Cesium-137 3.070 1.53 1.07- 1.99 Not Acceptable MAPEP-10-RdF22 3 ,d / 2010 Filter Bq/sample Cobalt-57 0.0002 0.00 ----- Acceptable MAPEP-10-RdF22 3 r, / 2 0 1 0 Filter Bq/sample Cobalt-60 5.187 2.473 1.731 -3.215 Not Acceptable MAPEP-10-RdF22 3 rd /2010 Filter Bq/sample Manganese-54 6.483 3.02 2.11 -3.93 Not Acceptable MAPEP-10-RdF22 3 rd/ 2010 Filter Bq/sample Plutonium-238 0.010 0.0010 --- Acceptable 0.0582 -MAPEP-10-RdF22 3 rd /2010 Filter Bg/sample Plutonium-239/240 0.164 0.0832 0.1082 Not Acceptable MAPEP-10-RdF22 3 rd / 2010 Filter B /sample Strontium-90

-0.004 0.00 --- Acceptable MAPEP-10-RdF22 3 rd /2010 Filter Bq/sample Uranium-234/233 0.137 0.068 0.048 -0.088 Not Acceptable MAPEP-10-RdF22 3 rd / 2010 Filter Bq/sample Uranium-238 0.147 0.071 0.050 -0.092 Not Acceptable MAPEP-10-RdF22 3 rd / 2010 Filter Bq/sample Zinc-65 -0.106 0.00 --- Acceptable MAPEP-10-GrF22 3 rd / 2010 Filter Bq/sample Gross Alpha 0.303 0.427 >0.0 -0.854 Acceptable MAPEP-10-GrF22 3 rd /2010 Filter Bq/sample Gross Beta 1.433 1.29 0.65-1.94 Acceptable 0.0875 -MAPEP-10-RdV22 3 rd / 2010 Vepetation ug/sample Uranium-235 0.090 0.1250 0.1625 Acceptable MAPEP-10-RdV22 3 rd / 2010 Vegetation ug/sample Uranium-238 12.5 17.9 12.5-23.3 Not Acceptable MAPEP-10-RdV22 3 rd / 2010 Vepetation ug/sample Uranium-Total 13.9 18.0 12.6-23.4 Acceptable MAPEP-10-RdV22 3 rd/ 2010 Vegetation Bq/sample Americium-241 0.179 0.225 0.158 -0.293 Acceptable MAPEP-10-RdV22 3 rd /2010 Vegetation Bq/sample Cesium-134 3.098 4.39 3.07-5.71 Acceptable MAPEP-10-RdV22 3 rd / 2010 Vegetation Bq/sample Cesium-137 2.185 3.06 2.14-3.98 Acceptable MAPEP-10-RdV22 3 rd / 2010 Vegetation Bq/sample Cobalt-57 0.009 0.00 ----- Acceptable MAPEP-10-RdV22 3 d /2 0 1 0 Vegetation Bq/sample Cobalt-60 3.076 3.27 2.29-4.25 Acceptable MAPEP-10-RdV22 3 'd / 2010 Vegetation Bq/sample Manganese-54 0.004 0.00 .... Acceptable MAPEP-10-RdV22 3 rd / 2010 Vegetation Bq/sampe Plutonium-238 0.149 0.160 0.112 -0.208 Acceptable MAPEP-10-RdV22 3 rd/ 2010 Vegetation Bq/sample Plutonium-239/240 0.0026 0.0008 ..20 Acceptable MAPEP-10-RdV22 3 rd/ 2010 Vegetation Bq/sample Strontium-90 0.033 0.00 --- Acceptable MAPEP-10-RdV22 3 rd/ 2010 Vegetation Bq/sample Uranium-234/233 0.184 0.216 0.151 -0.281 Acceptable MAPEP-10-RdV22 3 rd /2010 Vegetation Bq/sample Uranium-238 0.184 0.223 0.156 -0.290 Acceptable MAPEP-10-RdV22 3rd /2010 Vegetation Bq/sample Zinc-65 6.844 7.10 4.97-9.23 Acceptable 0 0 S S S S 0 S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S 0 0 0 0 0 0 0 0 0 0 0 0 0 S 0 S 0 0 0 oLaboratories LLC P.O. Box 30712, Charleston, SC 29417 2010 ANNUAL QUALITY ASSURANCE REPORT Page 33 of 51 TABLE 4 2010 ERA PROGRAM PERFORMANCE EVALUATION RESULTS

SUMMARY

Sample Quarter / Sample GEL Known Acceptance Number Year Media Unit Analyte / Nuclide Value value Range/ Ratio Evaluation RAD -80 1s"/2010 Water pCi/L Barium-133 73.5 72.9 61.0-80.2 Acceptable RAD -80 1 t/2010 Water pCi/L Cesium-134 69.2 63.4 51.5 -69.7 Acceptable RAD -80 1"/ 2010 Water pCi/L Cesium-137 118.0 120 108- 134 Acceptable RAD -80 1t /2010 Water pCi/L Cobalt-60 87.7 90 81- 101 Acceptable RAID -80 1 t/2010 Water pCi/L Zinc-65 213.0 210 189-246 Acceptable RAD -80 1't/2010 Water pCi/L Gross Alpha 51.3 42.5 22.0 -53.9 Acceptable RAID -80 1 "/2010 Water pCi/L Gross Beta 52.0 54.2 37.0 -61.1 Acceptable RAD -80 1t /2010 Water pCi/L Radium-226 16.9 17.8 13.2 -20.3 Acceptable RAD -80 1it/2010 Water pCi/L Radium-228 20.4 18.2 12.3-21.8 Acceptable RAID -80 "/2010 Water pCi/L Uranium (Nat) 49.0 50.2 40.7 -55.8 Acceptable RAID -80 1 "/2010 Water ug/L Uranium (Nat) Mass 67.3 73.2 59.4-81.4 Acceptable RAD -80 t /2010 Water pCi/L Tritium 19200 18700 16400-20600 Acceptable RAID -80 "/ 2010 Water pCi/L Strontium-89 37.9 53.3 42.3 -60.9 Not Acceptable RAID -80 1't/2010 Water pCi/L Strontium-90 52.3 42.2 31.1 -48.4 Not Acceptable RAID -80 1" /2010 Water pCi/L Iodine-131 30.5 28.2 23.5-33.1 Acceptable RAID -82 3 rd /2 0 1 0 Water pCi/L Barium-133 112.0 89.1 75.0 -98.0 Not Acceptable RAID -82 3 rd / 2010 Water pCi/L Cesium-134 115.0 88.3 72.4 -97.1 Not Acceptable RAD -82 3 / 2010 Water pCi/L Cesium-137 271 210 189-232 Not Acceptable RAID -82 3 rd / 2010 Water pCi/L Cobalt-60 98.4 72.8 65.5 -82.5 Not Acceptable RAID -82 3 rd/2 0 1 0 Water pCi/L Zinc-65 161 110 99.0-131 Not Acceptable RAD -82 3 rd/ 2010 Water pCi/L Gross Alpha 65.5 61.1 32.0 -75.9 Acceptable RAD -82 3 rd / 2010 Water pCi/L Gross Beta 56.7 56.4 38.6 -63.6 Acceptable RAID -82 3 rd / 2010 Water pCi/L Radium-226 15.9 17.1 12.7- 19.6 Acceptable RAID -82 3 rd / 2010 Water pCi/L Radium-228 18.9 16.1 10.8 -19.4 Acceptable RAID -82 3 rd / 2010 Water pCi/L Uranium (Nat) 58.0 49.6 40.2 -55.1 Not Acceptable RAID -82 3 rd / 2010 Water ug/L Uranium (Nat) Mass 89.1 72.3 58.7 -80.4 Not Acceptable RAID -82 3 / 2010 Water pCi/L Tritium 18500 19800 17300 -21700 Acceptable RAD -82 3 d / 2010 Water pCi/L Strontium-89 60.6 55.3 44.1 -62.9 Acceptable RAD -82 3 ,d / 2010 Water pCi/L Strontium-90 47.1 32.8 24.0 -38.0 Not Acceptable RAD -82 3 , / 2 0 1 0 Water pCi/L Iodine-131 32.2 28.4 23.6-33.3 Acceptable 090710N 3 d / 2 0 1 0 Water pCi/L Barium-133 86.9 92.9 78.3- 102 Acceptable 090710N 3 rd 1 2 0 1 0 Water pCi/L Cesium-134 93.8 79.4 65.0 -87.3 Not Acceptable 090710N 3 rd /2 0 1 0 Water pCi/L Cesium-137 55.5 54.6 49.1 -62.9 Acceptable 0907I0N 3 rd /2 0 1 0 Water pCi/L Cobalt-60 120.0 117 105-131 Acceptable 09071ON 3 rd /2 0 1 0 Water pCi/L Zinc-65 129 99.5 89.6-119 Not Acceptable Laboratories LLC P.O. Box 30712, Charleston, SC 29417 2010 ANNUAL QUALITY ASSURANCE REPORT Page 34 of 51 Sample Number Quarter I Sample Year Media GEL Value Known value Acceptance Range/ Ratio Unit Analye / Nuclide Evaluation 090710N 3 'd / 2010 Water ug/L Uranium (Nat) Mass 48.6 49.3 39.8 -55.1 Acceptable RAD -83 4t /2010 Water pCi/L Strontium-89 65.3 68.5 55.8 -76.7 Acceptable RAD -83 4 t' /2010 Water pCi/L Strontium-90 41.5 43 31.7 -49.3 Acceptable 10051ON 4" /2010 Water pCi/L Strontium-89 49.9 51.4 40.6 -58.9 Acceptable 10051ON 4" /2010 Water pCi/L Strontium-90 35.4 41.3 30.4 -47.5 Acceptable 112210H1 4t' / 2010 Water pCi/L Barium-133 66.3 65.9 54.9-72.5 Acceptable 112210H1 4t' /2010 Water pCi/L Cesium-134 71.6 71.6 58.4-78.8 Acceptable 112210H1 4t' /2010 Water pCi/L Cesium-137 151 146 131 -163 Acceptable 112210H1 4 th /2010 Water pCi/L Cobalt-60 90.2 84.5 76.0-95.3 Acceptable 112210H1 4t /2010 Water pCi/L Zinc-65 207 186 167-219 Acceptable 112210H2 4t' /2010 Water pCi/L Plutonium-238 102.0 108 81.7-134 Acceptable 112210H2 4" / 2010 Water pCi/L Plutonium-239 77.6 86.3 66.8-107 Acceptable 122810P 4 th / 2010 Water pCi/L Barium-133 70.9 68.9 57.5-75.8 Acceptable 122810P 4"' / 2010 Water pCi/L Cesium-134 43.0 43.2 34.5-47.5 Acceptable 122810P 4"' /2010 Water pCi/L Cesium-137 122 123 111 -138 Acceptable 122810P 4" / 2010 Water pCi/L Cobalt-60 58.7 53.4 48.1 -61.3 Acceptable 122810P 4t' /2010 Water pCi/L Zinc-65 116 102 91.8-122 Acceptable 0 0 0 0 0 0 0 0 0 0 0 S 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Laboratories LLC P.O. Box 30712, Charleston, SC 29417 0 2010 ANNUAL QUALITY ASSURANCE REPORT Page 35 of 51 0 0 0 0 0 0 0 0 0 0 0 0 0 TABLE 5 2010 ERA PROGRAM (MRAD) PERFORMANCE EVALUATION RESULTS

SUMMARY

Sample Quarter I Sample GEL Known Acceptance Number Year Media Unit Analyte I Nuclide Value value Range/ Ratio Evaluation MRAD-12 2n1 /12010 Soil pCi/kg Actinium-228 1570 1850 1190 -2600 Acceptable MRAD-12 2 n" /2010 Soil pCi/kg Americium-241 1130 1500 896-1930 Acceptable MRAD-12 2 nd /2010 Soil pCi/kg Bismuth-212 1430 1640 430 -2450 Acceptable MRAD-12 2 d / 2010 Soil pCi/kg Bismuth-214 1080 1410 865-2030 Acceptable MRAD-12 2"n /2010 Soil pCi/kg Cesium-134 3040 3110 2000-3740 Acceptable MRAD-12 2n1 /2010 Soil pCi/kg Cesium-137 4330 4440 3400-5770 Acceptable MRAD-12 2"d /2010 Soil pCi/kg Cobalt-60 2120 2140 1560-2870 Acceptable MRAD-12 2°d /2010 Soil pCi/kg Lead-212 1540 1520 980 -2140 Acceptable MRAD-12 2 nd /2010 Soil pCi/kg Lead-214 1300 1440 862-2140 Acceptable MRAD-12 2nd / 2010 Soil pCi/kg Manganese-54

< 22.9 0 ---- Acceptable MRAD-12 2 nd /2010 Soil pCi/kg Potassium-40 11100 10900 7900-14800 Acceptable MRAD-12 2nd /2010 Soil pCi/kg Thorium-234 1600 1610 511 -3070 Acceptable MRAD-12 2°d / 2010 Soil pCi/kg Uranium-238 1600 1610 984-2040 Acceptable MRAD-12 2nd / 2010 Soil pCi/kg Zinc-65 2790 2470 1960 -3310 Acceptable MRAD-12 2nd /2010 Soil pCi/kg Strontium-90 7870 8180 2960-13300 Acceptable MRAD-12 2nd / 2010 Soil pCi/kg Uranium-234

< 1158 1620 1030- 2010 Not Acceptable MRAD-12 2 nd / 2010 Soil pCi/kg Uranium-238 908 1610 984-2040 Not Acceptable MRAD-12 2 nd / 2010 Soil ug/kg Uranium-Total (mass) 2920 4820 2650-6060 Acceptable MRAD-12 2°n /2010 Soil pCi/kg Strontium-90 7870 8180 2960-13300 Acceptable MRAD-12 2nd / 2010 Soil pCi/kg Americium-241 1120 1500 896- 1930 Acceptable MRAD-12 2 d /2010 Soil pCi/kg Plutonium-238 1360 1330 761 -1870 Acceptable MRAD-12 2"d / 2010 Soil pCi/kg Plutonium-239 1220 1260 860 -1670 Acceptable MRAD-12 2"d / 2010 Soil pCi/kg Uranium-234 1230 1620 1030 -2010 Acceptable MRAD-12 2°n / 2010 Soil pCi/kg Uranium-238 1440 1610 984-2040 Acceptable MRAD-12 2°n / 2010 Soil pCi/kg Uranium-Total 2789 3300 1880-4460 Acceptable MRAD-12 2 nd / 2010 Soil ug/kg Uranium-Total (mass) 4350 4820 2650 -6060 Acceptable MRAD-12 2nd /2010 Vegetation pCi/kg Uranium-238 1604 1710 1200-2160 Acceptable MRAD-12 2nd / 2010 Vegetation ug/kg Uranium-Total (mass) 5270 5120 3520 -6610 Acceptable MRAD-12 2nd /2010 Vegetation pCi/kg Americium-241 2410 3140 1790-4310 Acceptable MRAD-12 2 d /2010 Vegetation pCi/kg Curium-244 429 528 260-822 Acceptable MRAD-12 2nd / 2010 Vegetation pCi/kg Plutonium-238 3090 3040 1640 -4450 Acceptable MRAD-12 2nd /2010 Vegetation pCi/kg Plutonium-239 2830 2800 1740-3820 Acceptable MRAD-12 2nd /2010 Vegetation pCi/kg Uranium-234 1680 1720 1180-2280 Acceptable MRAD-12 2n' /2010 Vegetation pCi/kg Uranium-238 1770 1710 1200-2160 Acceptable LLaboratories LLC P.O. Box 30712, Charleston, SC 29417 2010 ANNUAL QUALITY ASSURANCE REPORT Page 36 of 51 Sample Number Quarter / Sample Year Media GEL Known Acceptance Value value Range/ Ratio Unit Analyte / Nuclide Evaluation MRAD-12 2 nd / 2010 Vegetation pCi/kg Uranium-Total (mass) 5290 5120 3520-6610 Acceptable MRAD-12 2 nd /2010 Vegetation pCi/kg Americium-241 3600 3140 1790-4310 Acceptable MRAD-12 2 d /2010 Vegetation pCi/kg Cesium-134 1750 1670 956-2310 Acceptable MRAD-12 2" /2010 Vegetation pCi/kg Cesium-137 1550 1470 1080-2040 Acceptable MRAD-12 2 d / 2010 Vegetation pCi/kg Cobalt-60 2100 1970 1330-2830 Acceptable MRAD-12 2 nd/ 2010 Vegetation pCi/kg Manganese-54

< 9.6 0.00 ----- Acceptable MRAD-12 2 nd / 2010 Vegetation pCi/kg Potassium-40 40800 34900 25100 -49400 Acceptable MRAD-12 2 nd1/ 2010 Vegetation pCi/kg Uranium-238

< 1240 1710 1200-2160 Not Acceptable MRAD-12 2 nd/ 2010 Vegetation pCi/kg Zinc-65 1630 1360 983-1860 Acceptable MRAD-12 2 nd / 2010 Vegetation pCi/kg Strontium-90 7880 9120 5100 -12100 Acceptable MRAD-12 2 nd /2010 Air Filter pCi/Filter Uranium-238 61.5 61.5 39.4-87.3 Acceptable MRAD-12 2 nd/ 2010 Air Filter ug/Filter Uranium-Total (mass) 183 184 114- 264 Acceptable MRAD-12 2"d / 2010 Air Filter pCi/Filter Americium-241 52.7 60.0 35.1 -82.3 Acceptable MRAD-12 2 nd1/ 2010 Air Filter pCi/Filter Plutonium-238 63.9 64.1 44.0-84.3 Acceptable MRAD-12 2 nd /2010 Air Filter pCi/Filter Plutonium-239 56.6 56.7 41.1 -73.4 Acceptable MRAD-12 2 nd1/ 2010 Air Filter pCi/Filter Uranium-234 68.8 62.1 39.1 -92.0 Acceptable MRAD-12 2 nd / 2010 Air Filter pCi/Filter Uranium-238 69.5 61.5 39.4-87.3 Acceptable MRAD-12 2 nd /2010 Air Filter pCi/Filter Uranium-Total 141 126 64.4-200 Acceptable MRAD-12 2"d /2010 Air Filter ug/Filter Uranium-Total (mass) 208 184 114- 264 Acceptable MRAD-12 2 n/ 2010 Air Filter pCi/Filter Americium-241 76 60 35.1 -82.3 Acceptable MRAD-12 2 n/ 2010 Air Filter pCi/Filter Cesium-134 504 436 284-540 Acceptable MRAD-12 2 nd/ 2010 Air Filter pCi/Filter Cesium-137 785 701 527-921 Acceptable MRAD-12 2 nd / 2010 Air Filter pCi/Filter Cobalt-60 591 523 405-653 Acceptable MRAD-12 2 d / 2010 Air Filter pCi/Filter Manganese-54

< 5.07 0.00 ----- Acceptable MRAD-12 2"d /2010 Air Filter pCi/Filter Uranium-238

< 61.2 61.5 39.4- 87.3 Acceptable MRAD-12 2 nd /2010 Air Filter pCi/Filter Zinc-65 462 389 269-539 Acceptable MRAD-12 2 nd/ 2010 Air Filter pCi/Filter Strontium-90 178 187 82.3-291 Acceptable MRAD-12 2 n1 / 2010 Air Filter pCi/Filter Iron-55 375 359 158-559 Acceptable MRAD-12 2"d /2010 Air Filter ug/Filter Uranium-Total (mass) 175 184 114-264 Acceptable MRAD-12 2 nd /2010 Air Filter pCi/Filter Gross Alpha 68.2 79.6 41.3- 120 Acceptable MRAD-12 2 d / 2010 Air Filter pCi/Filter Gross Beta 72 70.4 43.4- 103 Acceptable MRAD-12 2 nd / 2010 Water pCi/L Uranium-238 67.9 60.9 46.5- 75.5 Acceptable MRAD-12 2 nd / 2010 Water ug/L Uranium-Total (mass) 213 182 143-225 Acceptable MRAD-12 2 d / 2010 Water pCi/L Americium-241 79.1 95.6 65.5- 129 Acceptable MRAD-12 2 d /2010 Water pCi/L Plutonium-238 79.5 109 82.4- 135 Not Acceptable MRAD-12 2 d / 2010 Water pCi/L Plutonium-239 103 105 81.2-130 Acceptable MRAD-12 2 nd /2010 Water pCi/L Uranium-234 62.4 61.4 46.3- 79.2 Acceptable MRAD-12 2 nd1/ 2010 Water pCi/L Uranium-238 66.1 60.9 46.5-75.5 Acceptable MRAD-12 2"d / 2010 Water pCi/L Uranium-Total 131.5 125 90.0- 166 Acceptable 0 0 S 0 0 S S S S S S S S S S S S S S S 0 0 S S S S S 0 S S S 0 S S S 0* Laboratories LLC S P.O. Box 30712, Charleston, SC 29417 0 2010 ANNUAL QUALITY ASSURANCE REPORT Page 37 of 51 0 0 S 0 0 0 0 0 0 0 0 0 0 0 0 S S S S 0 0 0 0 0 Sample Number Quarter I Year Sample Media GEL Value Known value Acceptance Rangel Ratio Unit Analvte / Nuclide Evaluation MRAD-12 2"d /2010 Water pCi/L Americium-241 123 95.6 65.5- 129 Acceptable MRAD-12 2 /2010 Water pCi/L Cesium-134 454 417 308-479 Acceptable MRAD-12 2 /2010 Water pCi/L Cesium-137 693 654 556-783 Acceptable MRAD-12 2 nd /2010 Water pCi/L Cobalt-60 813 727 633-859 Acceptable MRAD-12 2nd /2010 Water pCi/L Manganese-54

< 7.7 0.00 ---- Acceptable MRAD-12 2 nd / 2010 Water pCi/L Uranium-238

< 155 60.9 46.5-75.5 Not Acceptable MRAD-12 2"d / 2010 Water pCi/L Zinc-65 632 533 452-664 Acceptable MRAD-12 2 n1 / 2010 Water pCi/L Strontium-90 708 719 456-961 Acceptable MRAD-13 4"' /2010 Soil pCi/kg Actinium-228 1460 1830 1170-2580 Acceptable MRAD-13 4"' /2010 Soil pCi/kg Americium-241 845 1120 669-1440 Acceptable MRAD-13 4" / 2010 Soil pCi/kg Bismuth-212

< 538 2070 543-3100 Not Acceptable MRAD-13 4t' / 2610 Soil pCi/kg Bismuth-214 818 983 603-1410 Acceptable MRAD-13 4t' / 2010 Soil pCi/kg Cesium-134 2230 2240 1440-2700 Acceptable MRAD-13 4t' /2010 Soil pCi/kg Cesium-137 3400 3530 2700-4580 Acceptable MRAD-13 4"' / 2010 Soil pCi/kg Cobalt-60 4580 4780 3480-6420 Acceptable MRAD-13 4"' /2010 Soil pCi/kg Lead-212 1550 1640 1060-2310 Acceptable MRAD-13 4"' / 2010 Soil pCi/kg Lead-214 1030 969 580-1440 Acceptable MRAD-13 4" /12010 Soil -pCi/kg Manganese-54

< 38.0 0.00 ---- Acceptable MRAD-13 4"' / 2010 Soil pCi/kg Potassium-40 10500 10700 7760- 14500 Acceptable MRAD-13 4"' /2010 Soil pCi/kg Thorium-234 1010 1340 425-2550 Acceptable MRAD-13 4" /2010 Soil pCi/kg Uranium-238 1010 1340 819-1700 Acceptable MRAD-13 4"' / 2010 Soil pCi/kg Zinc-65 2420 2300 1820-3080 Acceptable MRAD-13 4"' /2010 Soil pCi/kg Americium-241 928 1120 669-1440 Acceptable MRAD-13 4"' /2010 Soil pCi/kg Plutonium-238 1170 1280 733-1800 Acceptable MRAD-13 4"' /2010 Soil pCi/kg Plutonium-239 1070 1180 805-1570 Acceptable MRAD-13 4"' / 2010 Soil pCi/kg Uranium-234 899 1360 862- 1690 Acceptable MRAD-13 4" / 2010 Soil pCi/kg Uranium-238 1080 1340 819-1700 Acceptable MRAD-13 4"' / 2010 Soil pCi/kg Uranium-Total 2027.4 2770 1580- 3740 Acceptable MRAD-13 4"' / 2010 Soil u1/kg Uranium-Total (mass) 3240 4040 2220-5080 Acceptable MRAD-13 4"' /2010 Soil pCi/kg Uranium-234 1190 1360 862- 1690 Acceptable MRAD-13 4"' / 2010 Soil pCi/kg Uranium-238 903 1340 819- 1700 Acceptable MRAD-13 4"' /2010 Soil ug/kg Uranium-Total 2093 2770 1580-3740 Acceptable MRAD-13 4"' / 2010 Soil pCi/kg Uranium-Total (mass) 2685 4040 2220-5080 Acceptable MRAD-13 4"' /2010 Soil pCi/kg Uranium-234 1110 1360 862-1690 Acceptable MRAD-13 4"t / 2010 Soil pCi/kg Uranium-238 1090 1340 819- 1700 Acceptable MRAD-13 4" /2010 Soil pCi/kg Uranium-Total 2253 2770 1580-3740 Acceptable MRAD-13 4" / 2010 Soil uq/kq Uranium-Total (mass) 3241 4040 2220-5080 Acceptable MRAD-13 4" /2010 Soil ug/kg Uranium-Total (mass) 2820 4040 2220-5080 Acceptable MRAD-13 4"' /2010 Soil pCi/kg Strontium-90 10953 9270 3350-15100 Acceptable Laboratories LLC P.O. Box 30712, Charleston, SC 29417 2010 ANNUAL QUALITY ASSURANCE REPORT Page 38 of 51 Sample Number Quarter /Year Sample Media GEL Value Known value Acceptance Ranae/ Ratio Unit Analyte / Nuclide Evaluation MRAD-13 4" /2010 Vegetation pCi/kg Plutonium-238 3740 4740 2560-6940 Acceptable MRAD-13 4t' /2010 Vegetation pCi/kg Plutonium-239 3590 4470 2770-6100 Acceptable MRAD-13 4t' / 2010 Vegetation pCi/kg Uranium-234 3600 4010 2750-5320 Acceptable MRAD-13 4t' / 2010 Vegetation pCi/kg Uranium-238 4000 3980 2800-5030 Acceptable MRAD-13 4th / 2010 Vegetation pCi/kg Uranium-Total 7834 8180 5620-10600 Acceptable MRAD-13 4" /2010 Vegetation ug/kg Uranium-Total (mass) 12000 11900 8180-15400 Acceptable MRAD-13 4"' /2010 Vegetation pCi/kg Cesium-134 1200 1040 595-1440 Acceptable MRAD-13 4t' /2010 Vegetation pCi/kg Cesium-137 1420 1260 924- 1750 Acceptable MRAD-13 4"' /2010 Vegetation pCi/kg Cobalt-60 1130 1010 683-1450 Acceptable MRAD-13 4"' /2010 Vegetation pCi/kg Manganese-54

< 39.8 0.00 .... Acceptable MRAD-13 4" / 2010 Vegetation pCi/kg Potassium-40 29000 22600 16200 -32000 Acceptable MRAD-13 4"' / 2010 Vegetation pCi/kg Zinc-65 1380 1210 874-1650 Acceptable MRAD-13 4t' / 2010 Vegetation pCi/kg Strontium-90 9800 7810 4360 -10400 Acceptable MRAD-13 4" / 2010 Air Filter pCi/Filter Uranium-234 73.5 71.8 45.2-106 Acceptable MRAD-13 4t' /2010 Air Filter pCi/Filter Uranium-238 75.5 71.2 45.6- 101 Acceptable MRAD-13 4t" /2010 Air Filter pCi/Filter Uranium-Total 149 146 74.6-232 Acceptable MRAD-13 4t"' / 2010 Air Filter ug/Filter Uranium-Total (mass) 224.5 213 132-306 Acceptable MRAD-13 4t" / 2010 Air Filter pCi/Filter Americium-241 70.1 74.1 43.3-102 Acceptable MRAD-13 4" / 2010 Air Filter pCi/Filter Plutonium-238 70.8 72.9 50.0-95.8 Acceptable MRAD-13 4"h / 2010 Air Filter pCi/Filter Plutonium-239 65.6 69.6 50.5- 90.1 Acceptable MRAD-13 4"h / 2010 Air Filter pCi/Filter Uranium-234 69.9 71.8 45.2- 106 Acceptable MRAD-13 4"' / 2010 Air Filter pCi/Filter Uranium-238 66.8 71.2 45.6- 101 Acceptable MRAD-13 4"' / 2010 Air Filter pCi/Filter Uranium-Total 142 146 74.6-232 Acceptable MRAD-13 4t' / 2010 Air Filter ug/Filter Uranium-Total (mass) 201 213 132-306 Acceptable MRAD-13 4" /2010 Air Filter pCi/Filter Cesium-134 405 388 253- 480 Acceptable MRAD-13 4" / 2010 Air Filter pCi/Filter Cesium-137 532 514 386-675 Acceptable MRAD-13 4h" / 2010 Air Filter pCi/Filter Cobalt-60 531 479 371 -598 Acceptable MRAD-13 4"' / 2010 Air Filter pCi/Filter Manganese-54

< 3.58 0.00 ---. Acceptable MRAD-13 4t' / 2010 Air Filter pCi/Filter Zinc-65 552 465 322-644 Acceptable MRAD-13 4t' / 2010 Air Filter pCi/Filter Strontium-90 80.2 159 70.0-247 Acceptable MRAD-13 4"' / 2010 Air Filter pCi/Filter Iron-55 707 626 275-974 Acceptable MRAD-13 4"' / 2010 Air Filter ug/Filter Uranium-Total (mass) 192 213 132-306 Acceptable MRAD-13 4"h / 2010 Air Filter pCi/Filter Gross Alpha 74.2 52.3 27.1 -78.7 Acceptable MRAD-13 4" / 2010 Air Filter pCi/Filter Gross Beta 55.6 52.7 32.5- 77.0 Acceptable MRAD-13 4"' /2010 Water pCi/L Uranium-234 106 109 82.2- 140 Acceptable MRAD-13 4t' /2010 Water pCi/L Uranium-238 107 108 82.5- 134 Acceptable MRAD-13 4"' / 2010 Water pCi/L Uranium-Total 218 221 159-294 Acceptable MRAD-13 4th / 2010 Water ug/L Uranium-Total (mass) 318 323 253- 399 Acceptable MRAD-13 4" / 2010 Water pCi/L Americium-241 164 176 120-238 Acceptable 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0* Laboratories LLC 0 PDO. Box 30712, Charleston, SC 29417 0 0 0 0 0 0 0 0 0 2010 ANNUAL QUALITY ASSURANCE REPORT Page 39 of 51 Sample Quarter / Sample Year Media GEL Value Known value Acceptance Ranael Ratio Unit Analvte I Nuclide Evaluation MRAD-13 4" /2010 Water pCi/L Plutonium-239 136 148 114- 183 Acceptable MRAD-13 4"' /2010 Water pCi/L Uranium-234 106 109 82.2- 140 Acceptable MRAD-13 4" /2010 Water pCi/L Uranium-238 114 108 82.5- 134 Acceptable MRAD-13 4" / 2010 Water pCi/L Uranium-Total 226.8 221 159-294 Acceptable MRAD-13 4" /2010 Water ug/L Uranium-Total (mass) 342 323 253- 399 Acceptable MRAD-13 4" / 2010 Water pCi/L Americium-241 178 176 120-238 Acceptable MRAD-13 4" /2010 Water pCi/L Cesium-134 495 492 363-565 Acceptable MRAD-13 4"' /2010 Water pCi/L Cesium-137 620 625 531-749 Acceptable MRAD-13 4"' /2010 Water pCi/L Cobalt-60 732 714 622- 844 Acceptable MRAD-13 4h / 2010 Water pCi/L Manganese-54

< 5 0.00 ---- Acceptable MRAD-13 4"' / 2010 Water pCi/L Zinc-65 557 489 414-610 Acceptable MRAD-13 4" / 2010 Water pCi/L Strontium-90 817 921 585- 1230 Acceptable MRAD-13 4' /2010 Water pCi/L Uranium-234 104 109 82.2- 140 Acceptable MRAD-13 4" / 2010 Water pCi/L Uranium-238 108 108 82.5-134 Acceptable MRAD-13 4" /2010 Water pCi/L Uranium-Total 217 221 159-294 Acceptable MRAD-13 4U /2010 Water ug/L Uranium-Total (mass) 321 323 253-399 Acceptable MRAD-13 4' /2010 Water pCi/L Iron-55 1220 825 480-1100 Acceptable MRAD-13 4 U, / 2010 Water pCi/L Gross Alpha 145 146 64.8-216 Acceptable MRAD-13 4 h, / 2010 Water pCi/L Gross Beta 171 143 83.6-210 Acceptable MRAD-13 4" / 2010 Water pCi/L Tritium 20900 21600 14100 -31900 Acceptable wLaboratorieS LLC P.O. Box 30712, Charleston, SC 29417 2010 ANNUAL QUALITY ASSURANCE REPORT Page 40 of 51 TABLE 6 2010 NEW YORK STATE DEPARTMENT OF HEALTH ENVIRONMENTAL LABORATORY APPROVAL PROGRAM (NYSDOH ELAP) PROFICIENCY TEST RESULTS

SUMMARY

Quarter / Sample GEL Known Acceptance Sample Number Year Media Unit Analyte / Nuclide Value value Range/ Ratio Evaluation NY-332 3263 2 nd / 2010 Water pCi/L Gross Alpha 33.0 26.8 15.0 -38.6 Acceptable NY-332 3263 2 nd / 2010 Water pCi/L Gross Beta 64.6 54.0 41.3- 66.7 Acceptable NY-332 3262 2 nd /2010 Water pCi/L Cesium-134 14.8 14.0 10.7-17.3 Acceptable NY-332 3262 2 nd / 2010 Water pCi/L Barium-133 27.8 25.6 20.6-30.5 Acceptable NY-332 3262 2 nd /2010 Water pCi/L Zinc-65 146 139 121 -156 Acceptable NY-332 3262 2 nd / 2010 Water pCi/L Cobalt-60 98.3 99.5 90.3- 109 Acceptable NY-332 3262 2 nd /2010 Water pCi/L Cesium-137 124 123 112-134 Acceptable NY-332 3264 2 nd / 2010 Water pCi/L Iodine-131 23.4 26.4 21.9 -31.0 Acceptable NY-332 3264 2 d / 2010 Water pCi/L Iodine-131 26.8 26.4 21.9 -31.0 Acceptable NY-332 3261 2 nd / 2010 Water pCi/L Strontium-89 46.7 41.9 33.4-50.4 Acceptable NY-332 3261 2nd / 2010 Water pCi/L Strontium-90 33.9 34.8 27.1 -42.5 Acceptable NY-332 3266 2 nd / 2010 Water pCi/L Tritium 9610 9490 8390 -10600 Acceptable NY-332 3265 2"d / 2010 Water pCi/L Radium-226 12.1 13.2 10.4- 16.0 Acceptable NY-332 3265 2nd / 2010 Water pCi/L Radium-228 9.90 8.91 6.08 -11.7 Acceptable NY-332 3265 2 nd / 2010 Water pCi/L Uranium (activity) 48.81 44.7 37.9 -51.4 Acceptable NY-337 3763 4 th /2010 Water pCi/L Gross Alpha 32.8 41.6 24.3-58.9 Acceptable NY-337 3763 4 t' / 2010 Water pCi/L Gross Beta 29.3 27.5 18.3-36.7 Acceptable NY-337 3762 4h /2010 Water pCi/L Cesium-134 51.0 42.0 35.8 -49.2 Not Acceptable NY-337 3762 4 h /2010 Water pCi/L Cesium-137 29.3 27.3 22.4-32.1 Acceptable NY-337 3762 4 h / 2010 Water pCi/L Cobalt-60 13.6 13.2 9.72-16.7 Acceptable NY-337 3762 4h / 2010 Water pCi/L Zinc-65 134 122 104- 138 Acceptable NY-337 3762 4 th / 2010 Water pCi/L Barium-133 50.5 50.9 43.3-59.4 Acceptable NY-337 3764 4ih /2010 Water pCi/L Iodine-131 13.4 18.2 14.7 -21.7 Not Acceptable NY-337 3764 4th /2010 Water pCi/L Iodine-131 13.5 18.2 14.7-21.7 Not Acceptable NY-337 3761 4h /2010 Water pCi/L Strontium-89 47.8 61.3 51.3-71.4 Not Acceptable NY-337 3761 4' /2010 Water pCi/L Strontium-90 12.0 14.9 11.0 -18.8' Acceptable NY-337 3766 4th / 2010 Water pCi/L Tritium 14400 15300 13500 -17000 Acceptable NY-337 3765 4 th /2010 Water pCi/L Radium-226 13.2 10.6 8.30 -12.9 Not Acceptable NY-337 3765 4 th / 2010 Water pCi/L Radium-228 6.51 6.07 3.91 -8.22 Acceptable NY-337 3765 4h / 2010 Water pCi/L Uranium (activity) 17.5 16.0 13.2 -18.7 Acceptable 0 0 0 S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S 0 S S S! Laboratories LLC P.O. Box 30712, Charleston, SC 29417 2010 ANNUAL QUALITY ASSURANCE REPORT Page 41 of 51 FIGURE 1 COBALT-60 PERFORMANCE EVALUATION RESULTS AND % BIAS S 0 0 0 S 0 0 S 0 0 0 0 0 0 0 0 2010 Cobalt-60 Performance Evaluation Results and % Bias 150.0 130.0 110.0 90.0 -o6------ Co-60 70.0-------- Lower Control 50.0 -Limit 3 .------ Upper Control 30.0 -Limit 10.0 --10.0-30.0-50.0 2010 Analytical Date I Laboratories LLC P.O. Box 30712, Charleston, SC 29417 2010 ANNUAL QUALITY ASSURANCE REPORT Page 42 of 51 0 0 FIGURE 2 CESIUM-137 PERFORMANCE EVALUATION RESULTS AND % BIAS 2010 Cesium-1 37 Performance Evaluation Results and % Bias 100.0 80.0 60.0 -. Cs-137 A 40.0 ------ Lower Control M Limit S- ...... Upper Control 20.0 Limit 0.0-20.0-40.0 2010 Analytical Date 0 0 S S S S S S S S S S S 0 S S S 0 S S S S S S S S S S S 0 S S S 0 0 0 0 0 S 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Laboratories LLC P.O. Box 30712, Charleston, SC 29417 2010 ANNUAL QUALITY ASSURANCE REPORT Page 43 of 51 FIGURE 3 TRITIUM PERFORMANCE EVALUATION RESULTS AND % BIAS 2010 Tritium Performance Evaluation Results and % Bias 50.0 30.0-H-3 10.0..------ Lower Control mLimit--- ------ Upper Control-10.0 Limit-30.0-50.0 2010 Analytical Date S S S~I Laboratories LLC S P.O. Box 30712, Charleston, SC 29417 0 2010 ANNUAL QUALITY ASSURANCE REPORT Page 44 of 51 FIGURE 4 0 STRONTIUM-90 PERFORMANCE EVALUATION RESULTS AND % BIAS 2010 Strontium-90 Performance Evaluation Results and % Bias S 60.0 5 S 40.0-0 20.0 -Sr-90------ Lower Control 0.0 Limit---------

Upper Control Limit 5-20.0--40.0 -S-60.0 5 2010 Analytical Date S S 0 S S S S S S S S S S S S 0 S S S 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 I Laboratories LLC P.O. Box 30712, Charleston, SC 29417 2010 ANNUAL QUALITY ASSURANCE REPORT Page 45 of 51 FIGURE 5 GROSS ALPHA PERFORMANCE EVALUATION RESULTS AND % BIAS 2010 Gross Alpha Performance Evaluation Results and % Bias 100.0 80.0 60.0-40.0 aGross pha 20.0 (Lower Control 0.0 Limit-20.0 ------- ,Upper Control----40.0 -- --Lim it-40.0--60.0 ,-80.0-100.0 2010 Analytical Date 0 0~iI Laboratories LLC P.O. Box 30712, Charleston, SC 29417 0 2010 ANNUAL QUALITY ASSURANCE REPORT Page 46 of 51 FIGURE 6 0 GROSS BETA PERFORMANCE EVALUATION RESULTS AND % BIAS 0 2010 Gross Beta Performance Evaluation Results and % Bias 0 100.0 0 80.0 -60.0 -40.0 -e Gross Beta 20.0 -...... Lower Control 0.0 Limit-20.0 Upper Control--- ------0.- ---- -------- ------Lim it-40.0 --60.0 --80.0 0-100.0 0 2010 Analytical Date S S S S S S S S 0 S S 0 S S S S S S S S 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 S Laboratories LLC P.O. Box 30712, Charleston, SC 29417 2010 ANNUAL QUALITY ASSURANCE REPORT Page 47 of 51 FIGURE 7 IODINE-131 PERFORMANCE EVALUATION RESULTS AND % BIAS 2010 Iodine-131 Performance Evaluation Results and % Bias 40.0 -20.0 0.0 ---1-131-20.0- ..Lower Control , -~Lim it.Upper Control-40.0 Limit-60.0-60.0-100.0 2010 Analytical Date Laboratories LLC P.O. Box 30712, Charleston, SC 29417 2010 ANNUAL QUALITY ASSURANCE REPORT Page 48 of 51 TABLE 7 GEL 2010 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM (REMP)Gross Alpha/Bet Americium-241 1 16 1 0 1 16 1 0 Iodine-131 247 0 249 0 Gamma 23 0 23 0 Strontium-90 15 0 15 0 AirC artr idgK Q__________

_____________

lodine-131 11 0 11 0 Gamma 63 0 64 0 Iodine-131 61 0 61 0 Strontium-90 33 0 34 0 Gamma 27 0 29 0 Carbon-14 2 0 2 0 Iron-55 3 0 3 0 Nickel-63 3 0 3 0 Strontium-90 11 0 11 0 Gamma 38 0 36 0 Strontium-90 3 0 3 0 Gamma (Including Iodine) 59 0 61 0 Strontium-90 3 0 3 0 Carbon-14 2 0 2 0 Gross Alpha/Beta 98 0 99 0 Gamma 177 0 170 0 Iodine-131 46 0 47 0 Iron-55 33 0 33 0 Nickel-63 35 0 35 0 Strontium-90 80 0 81 0 Tritium 176 0 174 0 Total: / ' 1590 0 1591 0 S S S 0 0 0 0 S 0 S 0 0 0 S 0 S S S S 0 Note 1: The RPD must be 20 percent or less, if both samples are greater than 5 times the MDC. If both results are less than 5 times MDC, then the RPD must be equal to or less than 100%. If one result is above the MDC and the other is below the MDC, then the RPD can be calculated using the MDC for the result of the one below the MDC. The RPD must be 100% or less. In the situation where both results are above the MDC but one result is greater than 5 times the MDC and the other is less than 5 times the MDC, the RPD must be less than or equal to 20%. If both results are below MDC, then the limits on % RPD are not applicable.

0 0* Laboratories LLC P.O. Box 30712, Charleston, SC 29417 2010 ANNUAL QUALITY ASSURANCE REPORT Page 49 of 51 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TABLE 8 GEL 2010 RADIOLOGICAL INTRA-LABORATORY DATA

SUMMARY

BIAS AND PRECISION BY Americium-241 Alpha Spec 2 2 47 38 485 477 13 12 Americium-243 Alpha Spec 2 2 1 0 53 50 2 2 Carbon-14 Liquid Scintillation 4 3 38 32 98 99 9 9 Gamma (long list of isotopes)

Gamma Spec 283 272 47 42 770 792 27 27 Gross Alpha/Beta Gas Flow 111 135 20 18 20 18 42 42 Iodine-129 Gamma Spec 99 88 28 28 28 28 9 9 Iodine-131 Gamma Spec 6 4 0 0 0 0 0 0 Iron-55 Liquid Scintillation 89 8 30 24 46 48 8 8 Alpha Spec and Isotopic Plutonium Liquid Scintillation 212 186 82 66 687 683 12 11 Isotopic Strontium Gas Flow 165 136 41 34 365 367 1 1 Isotopic Thorium Alpha Spec 82 59 0 0 371 372 0 0 Alpha Spec and ICP-Isotopic Uranium MS 137 112 13 10 713 697 24 24 Lead-210 Gas Flow 44 26 0 0 33 34 0 0 Nickel-59 Gamma Spec 65 60 28 22 64 64 7 7 Nickel-63 Liquid Scintillation 95 89 39 30 75 74 8 8 Neptunium-237 Alpha Spec 67 59 32 23 107 107 10 9 Polonium-210 Alpha Spec 18 6 0 0 5 6 0 0 Promethium-137 Liquid Scintillation 8 5 0 0 12 11 0 0 Radium-226 Lucas Cell 44 31 0 0 167 175 0 0 Radium-228 Gas Flow 29 25 0 0 129 124 0 0 Technetium-99 Liquid Scintillation 87 75 32 24 142 145 12 12 Tritium Liquid Scintillation 90 76 42 24 358 359 19 19 Americium-241 Alpha Spec 4 4 231 220 22 19 383 335 Americium-243 Alpha Spec 1 1 21 21 5 4 12 A115D Carbon-14 Liquid Scintillation 5 5 110 108 34 33 218 175 Gamma (long list of isotopes)

Gamma Spec 17 18 260 256 72 68 747 820 Gross Alpha/Beta Gas Flow 27 27 112 109 87 80 1169 1180 Iodine-129 Gamma Spec 1 1 88 88 21 21 162 94 Iodine-131 Gamma Spec 0 0 0 0 0 0 11 14 Iron-55 Liquid Scintillation 3 3 74 72 42 43 123 103 Alpha Spec or Liquid Isotopic Plutonium Scintillation 7 7 143 137 77 70 108 95 Isotopic Strontium Gas Flow 13 13 61 60 80 76 16 12 Isotopic Thorium Alpha Spec 13 13 145 132 8 8 289 359 Isotopic Uranium Alpha Spec 24 24 102 87 39 36 640 557 Lead-210 Gas Flow 0 0 0 0 0 0 114 108 Nickel-59 Gamma Spec 0 0 68 66 9 9 76 63 Nickel-63 Liquid Scintillation 5 5 74 72 50 51 172 143 Neptunium-237 Alpha Spec 3 3 0 0 16 15 193 168 Polonium-210 Alpha Spec 0 0 1 1 0 0 3 3 Promethium-1 37 Liquid Scintillation 1 1 5 5 3 3 6 2 Radium-226 Lucas Cell 2 2 25 25 5 5 502 505 Radium-228 Gas Flow 0 0 27 28 1 1 432 426 Technetium-99 Liquid Scintillation 15 15 179 175 39 40 41 41 Tritium Liquid Scintillation 9 9 125 122 8 8 898 824 Lab.oratories LLC P.O. Box 30712, Charleston, SC 29417 2010 ANNUAL QUALITY ASSURANCE REPORT Page 50 of 51 TABLE 9 GEL 2010 CORRECTIVE ACTION

SUMMARY

GEL CORRECTIVE STATUS: ACTION IDENTIFICATION OPEN/ ISSUE Cause and Disposition CLOSED CARR1 10209-542 OPEN Eckert & Ziegler Analytics Monitoring in progress Fe-59 Failure in Milk CARR100617-496 CLOSED MAPEP Series 22 PT The ICP-MS analysis of Uranium-235 Failures and Uranium-238 failure was attributed to the use of the less vigorous digestion method (EPA Method 3050B). After contacting RESL, GEL discovered that they had used a more rigorous total dissolution process.The failure for Plutonium-238 was attributed to a data reviewer's error and lack of attention to detail to the region of interest that was not included in the data result. Approximately 400 additional counts should have been included.

All analysts have been retrained on attention to detail of the ROI.For the remaining isotopic failures, the error was attributed to analyst error and failure to follow the instructions from the PT provider.CARR100617-497 CLOSED MRAD 12 PT Failures The ICP-MS analysis of Uranium-235 and Uranium-238 failure was attributed to the use of the less vigoroug digestion method (EPA Method 3050B). After contacting RESL, GEL discovered that they had used a more rigorous total dissolution process.For Uranium-238 in vegetation, air and water, the failure was attributed to method sensitivity by gamma spectroscopy.

Future PT analysis will be performed using a more sensitive method.CARR101210-527 CLOSED MRAD 13 PT Failures The failure for Bismuth-212 was attributed to a reporting error. The actual result (1660 pCi/kg) was within the acceptance range. The failure of Iron-55 was attributed to matrix interference.

An additional recount with a smaller aliquot and fresh reagent rinses removed the interferant.

S S S S S S S S S S S S S S S S S S 0 S S S S S S S S S S S S S S S S S 0 0 0 0 0 S S 0 0 S 0 0 S 0 0 0 0 0 0 oLaboratories LLC P.O. Box 30712, Charleston, SC 29417 2010 ANNUAL QUALITY ASSURANCE REPORT Page 51 of 51 CARR100318-487 CLOSED RAD-80 PT Failures The Gross Alpha failure was attributed to a concentrated iron carrier. The Strontium-89 and Strontium-90 failures were attributed to the associated weights of the carriers utilized during the preparation and analysis.CARR100907-512 CLOSED RAD-82 PT Failures Failures of the Gamma Emitters and the Naturals (Uranium) were attributed to analyst error and failure to follow the instructions from the PT provider.

The failure of Strontium-89 and Strontium-90 was attributed to analyst error while diluting the sample. All analysts were retrained to the proper processes.

CARR101203-525 CLOSED NY-337 PT Failures For Cesium-134, lodine-131, Strontium-89 and Strontium-90, and Radium-226, the failures could not be determined.

The laboratory continues to monitor results of internal quality control samples.

0 0 0* 8.0 DCPP 2010 ANNUAL LAND USE CENSUS Diablo Canyon Power Plant (DCPP) Radiological Environmental Monitoring Program (REMP)*personnel conducted a land use census in the vicinity of DCPP for 2010. The land use census is based on*Nuclear Regulatory Commission (NRC) Regulatory Guide 4.8, "Environmental Technical Specifications

1 for Nuclear Power Plants" and 10 CFR 50 Appendix I section IV. B. 3.DCPP Program Directive CY2, "Radiological Monitoring and Controls Program" requires performance 0of a land use census.*DCPP IDAP RP 1 .ID 11, "Environmental Radiological Monitoring Procedure", requires identification of the nearest milk animal, nearest residence, and the nearest broadleaf producing garden greater than 50 square meters (500 square feet) in each of the landward meteorological sectors within a 0distance of 8 kilometers (5 miles) of the plant. The land use census is conducted at least once per year*during the growing season (between Feb 15 and Dec 1) for the Diablo Canyon environs.0The 2010 Land Use Census was conducted via a helicopter over-flight and landowner telephone 0interviews.

The helicopter over-flight was conducted on March 12th, 2010. The telephone interviews were conducted October I1 h through November 30th, 2010. Twelve individual landowners or tenants were contacted.

Milk: No milk animals were identified within the first 8 kilometers (5 miles) of any sector.0Residences:

The nearest residence, relative to all sectors, is a small trailer located in the NW sector about 1.93*kilometers (1.2 miles) from the plant. Ranch workers occupy this BLANCHARD residence approximately 1 month per year during cattle round-ups.

A total of 17 residences were identified within the 8-kilometer (5-mile) radius of the plant, which 0were confirmed or appear to be occupied during 2010. Two abandoned structures are located in each of the NNW and NNE sectors.A new structure (with miscellaneous equipment) was located during the over-flight at GPS coordinates N35* 13.203, W120* 46.414. This structure is abandoned (non habitable).

The nearest residence in each sector is summarized in Table 1.0 Gardens: The land use census identified two household gardens greater than 50 square meters (500 square*feet) that produce broadleaf vegetation.

The READ garden (REMP 3C 1) is approximately 1/4 acre and*located in the NNE sector at 7.08 kilometers (4.41 miles). The KOONZE garden (REMP 6C1) is approximately 500 square feet and located in the E sector at 7.24 kilometers (4.5 miles). Sampling of the READ garden (REMP 3C 1) began during fourth quarter 2010 (4Q10).MELLO manages a farm in the ESE sector along the site access road coastal plateau. The farm starts at approximately 4.8 km and extends to 7.2 km (3 to 4.5 miles) from the plant. This commercial farm produces no broadleaf vegetation.

The farm area is about 100 acres of land with one planting per year. Commercial crops consist of about 100% cereal grass (oat hay). Less than 10 farm workers*periodically occupy this area during the growing season.0 0 0 0 0 0 0 0 0 Additional Land Use: Much of the area outside the plant site-boundary is used for rotational cattle grazing by five separate cattle operations.

For purposes of this census, the five cattle ranches are called BLANCHARD, SINSHEIMER, READ, ANDRE, and MELLO.BLANCHARD has about 120 cattle outside the plant site-boundary and utilizes the NW, NNW, N, and NNE sectors. About 80 yearling cattle were sold to mass market in 2010. BLANCHARD slaughtered two cattle in 2010 for personal consumption.

Additionally, BLANCHARD managed about 200 goats that were used for weed abatement in all landward sectors within the plant site-boundary.

During 2010, approximately 100 baby goats were born and then taken to Santa Margarita California where they are grass fed for 1 year. After one year, the 100 yearling goats are then to be sold to mass-market.

BLANCHARD slaughtered one goat in 2010 for personal consumption.

BLANCHARD also managed about 100 sheep outside the plant site-boundary in the NW and NNW sectors. These sheep were allowed to breed and the yearlings were sold to mass market.BLANCHARD slaughtered one sheep in 2010 for personal consumption.

BLANCHARD meats were sampled by REMP personnel.

SINSHEIMER has about 100 cattle outside the plant site-boundary in the NNE sector. These cattle were allowed to breed and about 90 calves were sold to mass market in 2010. SINSHEIMER did not slaughter any cattle for personal consumption in 2010.READ has about 120 cattle and 160 calves outside the plant site-boundary in the NNE sector. No cattle were sold to mass market in 2010. READ did not slaughter any cattle for personal consumption in 2010.ANDRE has about 80 cattle outside the plant site-boundary in the ENE sector. About 80 calves were sold to mass market in 2010. ANDRE did not slaughter any cattle in 2010 for personal consumption.

0 MELLO manages about 800 cattle outside the plant site-boundary in the E, ESE, and SE sectors.Harris Ranch Beef Corporation owned these cattle and sold all of them to mass market in 2010. MELLO did not slaughter any cattle in 2010 for personal consumption.

0 Two landowners (JOHE and ANDRE) take wild game for personal consumption outside the plant site-boundary in the NNE, NE, and ENE sectors. This wild game consists of approximately 2 deer and 4 wild pigs per landowner.

0 There is a California State Park Ranger Office in the NNW sector at 7.483 kilometers (4.65 miles) from the plant. Approximately 3 people occupy this office from 1000 to 1500 each day per week.0 There is a public campground (Islay Creek Campground) located in the NNW sector at Montana de Oro State Park at 7.387 kilometers (4.59 miles). This campground is near Spooner's Cove.Approximately 713,000 people visited Montana de Oro State Park via day use permit.Approximately 22,000 people spent the night at Islay Creek Campground.

0 0 0 0 0 0 0 S* There is public access to hiking trails at the north and south ends of the plant property.The Point Buchon Trail is located at the north end of PG&E property and has about 20,000 visitors annually.

It traverses about 3.5 miles of coastline from Coon Creek to Crowbar Canyon. The trail*is open for day hikes Thursday thru Monday from approximately 0800-1600.

Two to three people from California Land Management occupy the trail head booth during operating hours. This trail was opened to the public on July 13, 2007.0The Pecho Coast Trail is located at the south end of PG&E property and has about 2,500 visitors annually.

The trail is approximately 3.7 miles long and leads to the Point San Luis Lighthouse near Avila Beach. Access is controlled (by permission only) and conducted by docents. This trail is just slightly outside the 5 mile radius of the plant. Pecho Coast Trail hikes are only available on Wednesdays (about* 20 people) and Saturdays (about 40 people). 30-40 Lighthouse keepers occupy the Lighthouse grounds*on Tuesdays, Thursdays, and Saturdays from 0800-1600.

The Lighthouse property is owned by the Harbor District.S 5Groundwater Impacts: No Groundwater impacts to report in 2010.Monitoring Well 8S3 was added to the REMP in 2010 for the Groundwater Protection Initiative

~(GPI).*Additional Onsite Information:

The following plant equipment was placed into the Old Steam Generator Storage Facility for the 0duration of the plant operating license on the dates indicated.

It should be noted that the Old Steam* Generator Storage Facility is located within the site .boundary.

Unit One old steam generators (4 total)

2-14-09 Unit Two old steam generators (4 total) 3-2-08 Unit One old reactor head (1 total) :10-23-10*Unit Two old reactor head (1 total): 11-6-09 DCPP began loading of it's Independent Spent Fuel Storage Installation (ISFSI) pad on 6-23-09.*This process will be ongoing.S 0 S 0 Table 1 summarizes the nearest residence location in each meteorological sector.Figure 3 shows the location of the residences and gardens in the vicinity of DCPP.0 0 S S S 0 0 0 Table 1 Land Use Census 2009 Distance in Kilometers (and Miles) from the point located centrally between both Units Nearest Milk Animal, Residence, and Vegetable Garden 221/4 Degree (a) Nearest Nearest Residence Nearest Radial Sector Milk Animal Residence Azimuth Vegetable km (mi) Degree Garden km (mi)NW None 1.93 (1.2) 319.5 None NNW None 2.41 (1.5)(b) 331 None N None None -None NNE None 5.21 (3.2) 019.8 7.08 (4.4) (c)NE None 7.89 (4.9) 036 None ENE None 7.08 (4.4) 063.5 None E None 5.95 (3.7) 097.5 7.24 (4.5)(d)ESE None None -5.31 (3.3) (e)SE None None -None Table Notation: (a) Sectors not shown contain no land (other than islets not used for the purposes indicated in this table) beyond the site-boundary.(b) BLANCHARD residence is the full-time residence for critical receptor calculations.(c) The READ vegetable garden is located in the NNE sector and located at the 020 azimuth degree.There is also a full time residence at this location.(d) The KOONZE vegetable garden is located in the E sector and located at the 098 azimuth degree.There is also a full time residence at this location.(e) The MELLO garden is the commercial farm along the westward side of the site access road; however, it does not produce broadleaf vegetation.

This farm extends from 4.8 km to 7.2 km (3 to 4.5 miles)from the plant.0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Cayucos 10 Morro Bay 0#O NNW NNE 40 O NW NE# San Luis Obispo 0 5, Mile- RaisS rovr ea O (A ENE 00 O DCPP C*N O Pacific --Avila Beach OOcean Shell\ Beach27 5 Mile Rdius SE Pismo Beach 0 Mile Raius SE Grover Beacl #O ~UNITS 1 AND 2 O ~DIABLO CANYON SITE " O Gardens or Farm A Residences 0 1 2 3 4 5 A SCALE IN MILES Figure 3. Units 1 and 2 Diablo Canyon Power Plant Land Use Census.

0 0 0 0 0 0 S 0 0 0 0 0 0 0 0 0 0 0 0* 9.0 DCPP WIND ROSE CHART 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 S 0 0 0 0 0 0 0 S 0 0 0 0 0 0 0 0 0 0 0 Joint Frequency Distribution Wind Speed and Wind Direction Diablo Canyon Power Plant 10 Meter Level 2010 N 35.34 2.88 7.48 2.32-3.48, 13.04 2.32\W 1.89-1.85 5,25.E 1.22 1.35 9.68, 1.63 7.35 -284 S Wn aSpee 111 -P .2 Ho Wind Speed ( Miles Per Hour)Calms excluded.Rings drawn at 10% intervals.

Wind flow is FROM the directions shown.906 observations were missing.PERCENT OCCURRENCE:

Wind Speed I Miles Per Hour)LOWER BOUND OF CATEGORY DIR 0.1 3 6.9 11.5 18.4 24.2 N 0.59 1,52 0.66 0.11 0,10 000 NNE 0.39 1.55 0.33 0,04 0.00 0,00 NE 0.60 1.71 0.95 0.18 0.01 0.03 ENE 0.59 0.87 0.60 0.27 0101 0.00 E 1.03 0.61 0.17 0.04 0.00 0.00 ESE 1.23 1.77 (1.98 1.07 019 0.00 SE 1.72 3.17 2.94 1.00 029 W.09 SSE 1.67 3.21 1.36 0.62 0.23 0.25 TOTALOBS -7854 MISSING OBS = 906 PERCENT OCCURRENCE:

Wind Speed I Miles Per Hour)LOWER BOUND OF CATEGORY DIR 0.1 3.5 6.9 11_. 18.4 24.2 S 1. 0 0.81 0.17 0.06 0.00 0.(01 SSW 1.06 0.48 006 0.03 0.00 0.1Y)SW 0.75 0.43 0 13 0.04 0.00 WSW 0.53 0.47 0.15 0.06 0.00 0.101 W 1I.64 0.03 037 0.13 0.01 0.01 WNW 0.94 3.32 3.35 3.27 1.71 0145 NW 0185 3.83 8.26 10.64 7.69 4.06 NNW 0.33 2.15 284 1.50 0.47 1.19 CALM OS = 0 S 0*

10.0 REFERENCES

1. DCPP Interdepartmental Administrative Procedure (IDAP), RP 1.ID 11, "Environmental Radiological Monitoring Procedure." 0 2. NRC Branch Technical Position, Revision 1, November 1979.3. DCPP Program Directive, CY2, "Radiological Monitoring and Controls Program." 4. NEI 07-07, "Industry Ground Water Protection

-Final Guidance Document", August 2007 5. NRC Regulatory Issue Summary 2008-03, "Return/Re-use of Previously Discharged Radioactive

Effluents";

February 13, 2008 6. "Tritium Occurrence in Groundwater at Diablo Canyon Power Plant", by S.M. Stoller Corporation 7 57. "Groundwater Gradient Analysis", by Entrix Corporation, March 2010 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

DCL-11-050, Diablo Canyon, Units 1 and 2, 2010 Annual Radiological Environmental Operating Report, Cover Through Section 10.0 References

Contents

Text

SUMMARY

1.0 INTRODUCTION

2.3 DESCRIPTION

SUMMARY

SUMMARY

SUMMARY

SUMMARY

SUMMARY

SUMMARY

SUMMARY

SUMMARY

SUMMARY

SUMMARY

SUMMARY

10.0 REFERENCES

Navigation menu

DCL-11-050, Diablo Canyon, Units 1 and 2, 2010 Annual Radiological Environmental Operating Report, Cover Through Section 10.0 References

Text

SUMMARY

1.0 INTRODUCTION

2.3 DESCRIPTION

SUMMARY

SUMMARY

SUMMARY

SUMMARY

SUMMARY

SUMMARY

SUMMARY

SUMMARY

SUMMARY

SUMMARY

SUMMARY

10.0 REFERENCES

Navigation menu

Search