ML102030168

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North Carolina Split Sample Results
ML102030168
Person / Time
Site: Harris Duke Energy icon.png
Issue date: 07/07/2010
From:
- No Known Affiliation
To:
Office of Information Services
References
FOIA/PA-2010-0209
Download: ML102030168 (4)


Text

North Carolina Split Sample Resu*,ts K

I.

Cooling Tower Blowdown Wells H-3 Concentration (pCi/L)

BD-MWI BD-MW2 BD-MW3 BD-MW5 BD-MW6 BD-MW7 BD-MW8 BD-MW9 1/23/2009- <243 787 533 dry dry ____:___-_:..._.__...___,_.

2/6/2009 _-____* .. . _-. -_ 1500 2450 .. .. _... . . .._ ..

3/4/2009 372 373 1060 1260 1450 <234 <232 <232 3/30/2009 371 4/8/2009 456 1010 1430 1220 -294 275 <232 5/14/2009 <232 513 +/- 146 994 + 151 1100 +/- 151 1580 +/- 156 Unable to sample <233 Unable to sample 6/9/2009 _ I

Cooling Tower Blowdown Wells Gamma Note: Analyzed to Environmental Lower Limit of Detection BD-MW1 BD-MW2 BD-MW3 BD-MW5 BD-MW6 BD-MW7 BD-MW8 1/23/2009 dry dry 2/6/2009 .:

3/4/2009.

4/8/2009 <LLD <LLD <LLD <LLD <LLD <LLD

<LLD <LLD <LLD <LLD O<LLD 5/14/2009 <LLD

Ss.

TABLE 1 MONITORING WELL LOCATION/RATIONALE GROUNDWATER ASSESSMENT SHEARON HARRIS NUCLEAR POWERPLANT NEW HILL. NORTH CAROLINA MONITORING LOCATION/RATIONALE WELL ID Approximately 100 feet south (downstream) from ARS# 1. This is a location where the TW-1 pipeline is above the normal water table.and will be used.to evaluate potential leaks upstream. The pipeline was not visually inspected in this area.

TW-2 Approximately 200 feet north (upstream) of APM#I. This is 'a location where thepipeline is above the normal water table and is the location where the WEKO SEAL repair was performed. This point will be used to determine water quality at the location of the identified leak.

TW-3 Approximately 50 feet south (downstream) from ARS#4. This is a location where the pipeline is above the normal water table and will be used to evaluate potential leaks upstream. The pipeline was not visually inspected in this area.

TW-4 Approximately 50 feet north (upstream) from ARS#5. This is a location where the pipeline is above the normal water table and will be used to evaluate potential leaks upstream. The pipeline was not visually inspected in this area.

.TW-5 Approximately 1800 feet south (downstream) of Drop Structure A. This is a location where the pipeline is abovethe nonnal watertable and will be used to determine water quality at the location of the identified leak.

TW-6 Approximately 50 feet north (upstream) from Drop Structure B. This is a location where the pipeline is above the normal water table and will be used to determine water quality at the location of the identified leak.

BDL-MWlO Adjacent to ARS# 1 to monitor groundwater quality at this portion of the pipeline. Note:

This monitoring well location may be moved farther north to better evaluate the portion of the pipeline north of ARS#l that was not.visually inspected.