Impact of Utility GPI Activities on a State REMP Program RETS-REMP Workshop 6/23/2008 Dale Dusenbury, MSPH,CHP Health Physicist Supervisor NC Radiation.

Impact of Utility GPI Activities on a State REMP Program

RETS-REMP Workshop 6/23/2008

Dale Dusenbury, MSPH,CHPHealth Physicist Supervisor

NC Radiation Protection Section

Environmental Monitoring

• Media near nuclear facilities are monitored by the ERE Branch, a non-regulatory program in the NC Radiation Protection Section.

• The goal is to provide an independent check and confirmation of utility results.

• Due to size and resource constraints split sample monitoring can occur at only at limited number of sites.

Sample Type

Location Sample Frequency/

Period

Quantity(minimum)

Collector

SampleDelivery

RemarksCP&L

State

Air (Low-Vol.)

201 23Weekly - Mondays

1 filter & 1cartridge

CP&L*

Pick up at Harris E&E

Center on Thursdays

Air filter and cartridge. (cartridge counted for I-131)

Surface Water

400401

4839

Monthly (1st Monday

of month)1.0 gal. CP&L* Composite (1 month)

Milk N/A

Fishlife700701702

46 Semi-annual(depending

onavailability)

0.5 kg

CP&L KEEP COLD !!(1 free swimmer, 1 bottom

feeder,and 1 invertebrate)

Vegetation 800 23Semi-annual

(May and August)

0.5 kgCP&L

&State

Split Samples collected by CP&L.

Independent locations collected by State

Sediment 500 30Annually(no specific dates)

0.5 literCP&L

&State

Split Samples collected by CP&L.

Independent locations collected by State

* Quarterly collected together by State and CP&L. State will call a few weeks ahead of time for arrangements.

Facility: BRUNSWICK NUCLEAR PLANT, Highway 87, Southport, N.C. Progress Energy Corp./CP&L

SHEARON-HARRIS NUCLEAR PLANT,New Hill-Holleman Road, New Hill, N.C. Progress Energy Corp./CP&L

Sample Type

Location Sample Frequency/Period

Quantity(minimum) Collecto

r

SampleDelivery

Remarks

CP&L State

Air (Low-Vol.)

2 4 Weekly - Mondays1 filter & 1cartridge

CP&L*

Pick up at E&E Center

on Thursdays

Air filter and cartridge. (cartridge counted for I-131)

Surface Water

3840

26*

4445

22*

Bi-weekly (every other

Monday)1.0 gal. CP&L*

Composite (2 weeks)*Monthly Composite collected by CP&L and analyzed for H-3

Milk5 13

Monthly(2nd week of

month)1.0 gal. CP&L* KEEP COLD !!

Ground Water

3959606869707172

3959606869707172

Quarterly 1.0 gal. CP&LSamples analyzed for H-3 and

Gamma Emitters

Fish LifeF1-44F2-44

5253

Semi-annual(June and

September)1.0 kg

CP&L KEEP FROZEN !!(1 free swimmer, 1 bottom feeder,

and 1 forager - 1 each per site)

Vegetation

46 51Semi-annual

(Spring and Fall)0.5 kg

CP&L&

State

Split Samples collected by CP&L.Independent locations collected by State

Sample Type

Location Sample Frequency/Period

Quantity(minimum)

Collector

SampleDelivery

RemarksDuke State

Air (Low-Vol.)

120134125

120134125

Weekly - Tuesdays1 filter & 1cartridge

Duke*

Ship to RPS

via Fed-Ex or UPS

Air filter and cartridge.(cartridge counted for I-131)

Surface Water

128135

128135

Bi-weekly (every other Tuesday)

1.0 gal. Duke* Composite samples (2 week)

Milk

139

139Monthly

(4th Tuesday of month)

1.0 gal. Duke* KEEP COLD !!

Fishlife

129

129Semi-annual

(July and October)1.0 kg

Duke KEEP FROZEN !!(1 free swimmer, 1 bottom feeder,

and 1 forager)

Vegetation 188 188 Semi-annual(June and September)

1.0 kgDuke

&State

Split Samples collected by CP&L.Independent locations collected by State

Sediment 129 129 Annually(November)

0.5 literDuke

&State

Split Samples collected by CP&L.Independent locations collected by State

* Quarterly collected together by State and CP&L. State will call in advance for arrangements. Duke and Radiation Protection Section (RPS) use same site numbers.

McGUIRE NUCLEAR PLANT, Huntersville, N.C.

Duke Energy Corp

Radiation Analysis Proceduresfor

Environmental SamplesDerived from DENR/RPS 2004 Environmental Radiation Surveillance Plan

and1996 Environmental Radiation Surveillance Report; Appendix B, pages 6-7 to 6-12

Updated 07/13/07 by BDD

AIR Samples

Sample Type

Facility Action Level Required Analyses

Air Filter

(particulate)

Statewidesites

1. Routine2. If Beta ( ) > 0.5 pCi/m33. If Cs-137 > 0.2 pCi/m3

1. Gross on each air filter (3-day, 10- day, or 2 analyses w/ 7 days apart)2. Gamma-scan (γ)3. Sr-90 analysis

All otherfacilities

(except GE)

1. Routine2. If > 0.5 pCi/m3, detectable I-131, or Cs-137 > 0.1 pCi/m33. If Cs-137 > 0.2 pCi/m3

1. Individual gross alpha (α) and gross beta ( ), and composite for (γ)2. Individual gamma-scan (γ)3. Sr-90 analysis

GE1. Routine 1. Individual gross alpha (α)

Sample Type

Facility Action Level Required Analyses

Air Cartridge(Iodine)

NRC-Contract sites (nuclear)

1. Routine 1. Gamma-scan (γ) on individual cartridges

Non-Contract sites

1. Routine2. If any detectable Iodine (isotopic)

1. Individual gamma-scan (γ)2. Gamma-scan (γ) re-analysis on different detector

AIR Samples

SURFACE & GROUND WATER Samples

Sample Type

Facility Action Level Required Analyses

Surface Water

or Waste Water

Statewidesites

1. Routine2. If Beta ( ) > 5.0 pCi/L3. If Alpha (α) > 5.0 pCi/L4. If Cs-137 > 10.0 pCi/L

1. Gross alpha (α) and gross beta ( )2. Gamma-scan (γ)3. Ra-226 analysis4. Sr-89 and Sr-90 analysis

NRC-Contract

sites (nuclear)

1. Routine2. If Cs-137 > 10.0 pCi/L

1. Gamma-scan (γ), Tritium (H-3), and Low Level Iodine (LLI) analyses2. Sr-89 and Sr-90 analysis

Non-Contract sites (nuclear) Pulstar (PS), and (B-52)

1. Routine2. If Beta ( ) > 5.0 pCi/L3. If Alpha (α) > 15.0 pCi/L4. If Cs-137 > 10.0 pCi/L

1. Gross alpha (α), gross beta ( ), and (H-3)2. Gamma-scan (γ)3. Total Uranium (U) analysis4. Sr-89 and Sr-90 analysis

GE1. Routine2. If Alpha (α) > 5.0 pCi/L

1. Gross alpha (α)2. Alpha (α) Spectroscopy or ICP-MS for uranium

Finished Water

orGround Water

Statewidesites

1. Routine2. If Alpha (α) > 5.0 pCi/L for any sample3. If Ra-226 > 3.0 pCi/L4. If Alpha (α) > 15.0 pCi/L and Ra-226 and Ra-228 combined > 5.0 pCi/L

1. Gross alpha (α) and gross beta ( )2. Gamma-scan (γ) and Ra-2263. Ra-228 analysis4. Total Uranium and quarterly sample analysis of Ra-226 and Ra-228 until < 5.0 pCi/L

NRC-Contract,

Non-Contract,

Pulstar, and Faro, NC

(B-52)

1. Routine2. If Beta ( ) > 5.0 pCi/L for any sample3. If Alpha (α) > 15.0 pCi/L

1. Gross alpha (α), gross beta ( ), and (H-3)2. Gamma-scan (γ)3. Total Uranium

GE

1. Routine2. If Alpha (α) > 5.0 pCi/L

1. Gross alpha (α) and gross beta ( )2. Alpha (α) Spectroscopy or ICP-MS for uranium

SURFACE & GROUND WATER Samples

PRECIPITATION (Rainfall Collection) Samples

Sample Type

Facility Action Level Required Analyses

Rainfall

Statewide 1. Routine2. If Beta ( ) > 10.0 nCi/m2

1. Gross beta ( )2. Gamma-scan (γ) and Sr-89 and Sr-90 analyses

SOIL and SEDIMENT SamplesSample

TypeFacility Action Level Required Analyses

Soil and

Sediment

NRC-Contract sites (nuclear)

1. Routine 1. Gross alpha (α) and gross beta ( ), gamma-scan (γ)

Non-Contract sites

(except GE and PCS-Phosphate)

1. Routine2. If Beta ( ) > 20.0 pCi/g (dry) for any sample

1. Gross alpha (α) and gross beta ( ), gamma-scan (γ)2. Sr-89 and Sr-90 analysis

GE

1. Routine2. If Alpha (α) > 15.0 pCi/g (dry)

1. Gross alpha (α) and gross beta ( )2. Alpha (α) Spectroscopy or ICP-MS for uranium

PCS-Phosphate (TG)

1. Routine1. Gross alpha (α) and gross beta ( )

Potential Ingestion-Pathway Samples

Sample Type

Facility Action Level Required Analyses

Milk

Statewidesites

1. Routine2. If Cs-137 > 5.0 pCi/L3. Regardless of Gamma- scan (γ) results

1. Gamma-scan (γ) for each sample.2. Sr-89 and Sr-903. Sr-89 and Sr-90 for 1/3 of samples monthly on an alternating schedule [subject to update --RB]

NRC-Contract sites (nuclear)

1. Routine1. Gamma-scan (γ) and Low-Level Iodine (LLI)

Sample Type Facility Action Level Required Analyses

Vegetation

NRC-Contract

sites (nuclear)

1. Routine 1. Gamma-scan (γ) for each sample

Non-Contract (nuclear)

and Pulstar

1. Routine2. If Beta ( ) > 20.0 pCi/g (wet) for any sample

1. Gross alpha (α), gross beta ( ), and gamma-scan (γ) on edible portions2. Sr-89 and Sr-90 analysis

GE

1. Routine2. If Alpha (α) > 0.3 pCi/g (wet)

1. Gross alpha (α)2. Isotopic Uranium (Alpha-Spec or ICP-MS)

Potential Ingestion-Pathway Samples(Continued)

Sample Type

Facility Action Level Required Analyses

Seafood&

Fishlife

NRC-Contract sites (nuclear)

1. Routine 1. Gamma-scan (γ) analysis

Non-Contract sites

(nuclear)

1. Routine2. If Beta ( ) > 5.0 pCi/g (dry)

1. Gross alpha (α), gross beta ( ), gamma-scan (γ)2. Sr-89 and Sr-90

Potential Ingestion-Pathway Samples(Continued)

Sampling Totals

Routine

Other Sites BR GE MG PS CT SH

Total Year

Air Particulate 120 12 260 156 260 8 104 260 1180 Air Iodine 0 0 104 0 104 0 8 104 320 Milk 84 0 0 0 12 0 0 12 84 Finished Water 108 0 0 0 0 0 0 0 108 Raw Surface Water 84 4 26 20 60 4 0 68 266 Groundwater 0 8 14 14 0 0 0 40 50 Precipitation 36 0 0 0 0 0 0 0 36 Sewage Effluent 36 0 0 0 0 0 0 0 48 Sediment 0 2 2 6 5 0 0 8 23 Shellfish or Fish 4 0 12 0 6 0 0 12 34 Soil 0 2 0 4 0 0 0 0 6 Vegetation or Food 0 2 4 4 6 0 0 4 20 TLD 0 0 148 20 160 20 20 164 532 NORM in Water 0 25 0 0 0 0 0 0 25 Total for Year 460 55 564 220 613 32 132 652 2766

Analytical Sensitivity

Values

Tritium MDA and Recent Initiatives

• Tritium in Ground Water MDA-250 pCi/L

• Counted using multiple 100 minute counts by liquid scintillation.

Tritium split sampling in ground water began near Brunswick in June,2007.

Tritium split sampling near McGuire in May,2008.

RPS Split Sampling for Tritiumin Groundwater near the

Brunswick PlantInitial and Ongoing Efforts

RPS Split Sampling for Tritiumin Groundwater near the

Brunswick PlantInitial and Ongoing Efforts

Notification

• On 6/15/07 RPS personnel were notified that tritium had been discovered in water in a manway near the elevated stabilization pond at the Brunswick plant.

• Brunswick personnel arranged for contractors to sink wells in the shallow, intermediate and deep aquifers at the site.

• RPS agreed to perform split sampling of ground water with Brunswick personnel.

Shallow Well Field

May Sampling Data –Shallow Well Field

Marsh Well Field

Marsh Well Field

Intermediate Well Field

Intermediate Well Field

RPS Split4/8/08

Deep Well Field

Initial Split Sample DataListing of Split Samples From Stabilization Pond Projected Received and Submitted with Results Received by RPS as of 7/6/2007LocationColl.Date Volume Progress RPS RPS Submit Progress Request

H-3 (pCi/L)H-3Error H-3 (pCi/L)H-3ErrorESS20B6/13/2007 1000 ml ND(296) 172 ND(250) 170 6/18/2007 6/14/2007ESS19B6/13/2007 4426 2131 5256 228 6/18/2007C27 A3 6/18/07 1000 ml 300ND 177 0 241 7/2/2007 6/18/2007CT 1 6/18/2007 1000 ml 300ND 174 -352.94 164.73 7/2/2007 6/18/2007WP 50 6/19/2007 1000 ml(a)306ND 176 0 237 7/2/2007 6/19/2007WP56 6/19/2007 4000 ml 311ND 181 0 169 7/2/2007 6/19/2007WP59 6/19/2007 305ND 175 0 165 7/2/2007 6/19/2007WP61 6/19/2007 1000 ml 304ND 175 -347 162 7/2/2007 6/19/2007WP64 6/19/2007 1000 ml 306ND 176 0 167 7/2/2007 6/19/2007WP82 6/7/2007 500 ml 3889 3538 211 6/29/2007WP84 6/7/2007 500 ml 1303 1058 183 6/29/2007WP86 6/7/2007 500 ml 8379 12057 289 6/29/2007WP87 6/7/2007 500 ml 5399 7036 245 6/29/2007WP88 6/7/2007 500 ml 431 353 174 6/29/2007WP89 6/7/2007 500 ml 5027 7747 252 6/29/2007

ND indicates not detected at the LLD. The RPS LLD is 250 pCi/L for tritium, however the actual numbers from analysis are reported in the RPS column rather thanless than LLD.The grey area is the needed errors from the Progress Results. It had initially been proposed to compare results using the NRC Resolution parameterfound in Inspection Procedure 84750 using the Progress results as the reference values. This is not possible without the errors. The ratio of the RPS to the Progress H-3results is found in cells M4 and M-13-M-18.

Ongoing Activities

• Regular sample collection from wells around the stabilization pond continues.

• RPS staff will conduct split sampling of ground water at sites 24A,19B, and 19C during April,2008.

• Contacts between RPS and utilities are continuing regarding ground water tritium monitoring projects.

Date 4/11/2008 Results in pCi/LBNP State of NC HEEC Ratio BNP: HEECRatio BNP:State

RatioHEEC:StateWell ESS-19B 17,930 16,799 17,200 1.04 1.07 1.02Well ESS-19C 449,700 447,843 436,000 1.03 1.00 0.97Well ESS-24A < 247 <250 <247 <LLD <LLD <LLD

Results for Brunswick Split Samples

Split Sampling at McGuire Nuclear Station

Date 5/6/2008 Results in pCi/L      

  MNS NCRPS MNS MDA RPS MDA Ratio RPS:MNS

Well MGW_93 259 716 173 < 250 2.76  

Well MGW-93R 233 383 172 < 250 1.64  

Well MGW-103 2890 3236.7 177 < 250 1.12  

Well MGW-103R 2100 2545.7 175 < 250 1.21  

Split Sample Results at McGuire Nuclear Station 5/6/2008

Routine Sampling at Harris Nuclear Plant

Harris Ground Water Monitoring

Conclusions

• Performing split sampling as a follow on to existing activities has been possible due to close coordination w/ utility.

• Agreement of limited set of split samples was generally good based on simple ratios.

• State involvement assisted local environmental agencies in their information gathering.

• A limited number of sites may be recommended for inclusion in the State’s routine monitoring program.