ML102030170

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HNP Radiological Environmental Monitoring Gamma Isotopic Report
ML102030170
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: ML102030170 (17)
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Text

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HNP Radiological EAvironmentaiO oring GammaIstpic Report a Type: Groundwater Medi Quantity: Liters Concentration (Activity): pCi/L Sample Point "

Sample Date Quantity Isotope Activity 2 Sigma Error Sample Point:

Sample Date DEEP WELL NEAR DIABASE DIKES DEEP WELL NEAR DIABASE DIKES DEEP WELL NEAR DIABASE DIKES DEEP WELL NEAR DIABASE DIKES DEEP WELL NEAR DIABASE DIKES DEEP WELL NEAR DIABASE DIKES DEEP WELL NEAR DIABASE DIKES DEEP WELL NEAR DIABASE DIKES DEEP WELL NEAR DIABASE DIKES DEEP WELL NEAR DIABASE DIKES DEEP WELL NEAR DIABASE DIKES DEEP WELL NEAR DIABASE DIKES DEEP WELL NEAR DIABASE DIKES DEEP WELL NEAR DIABASE DIKES DEEP WELL NEAR DIABASE DIKES DEEP WELL NEAR DIABASE DIKES DEEP WELL NEAR DIABASE DIKES DEEP WELL NEAR DIABASE DIKES DEEP WELL NEAR DIABASE DIKES DEEP WELL NEAR DIABASE DIKES DEEP WELL NEAR DIABASE DIKES DEEP WELL NEAR DIABASE DIKES DEEP WELL NEAR DIABASE DIKES DEEP WELL NEAR DIABASE DIKES, DEEP WELL NEAR DIABASE DIKES DEEP WELL NEAR DIABASE DIKES 2/28/1994 6/3/1994 8/10/1994 11/22/1994 3/7/1995.

- 6/2/1995 9/6/1995 11/28/1995 2/23/1996 6/21/1996

  • 9/24/1996

.12/5/1996 2/25/1997 5/20/1997 8/28/1997 12/16/1997 3/5/1998 6/16/1998 9/3/1998 11/19/1998 2/17/1999 6/11/1999

'9/7/1999 11/23/1999 2/23/2000 5/23/2000 K-40 NO-ACT K-40 NO-ACT NO-ACT NO-ACT NO-ACT

.NO-ACT K-40 NO-ACT NO-ACT NO-ACT NO-ACT NO-ACT NO-ACT NO-ACT NO-ACT NO-ACT NO-ACT NO-ACT*"

K-40 NO-ACT NO-ACT NO-ACT NO-ACT NO-ACT 3.58E+02

<LLD 1.38E+02

<LLD

<LLD

<LLD

<LLD

<LLD 6.77E+01

<LLD

<LLD 1.71 E+02 5.60E+01 9.70E+01 5.34E+01, 5.29E+01 Page I of 17

HNP Radiological Environmental Monitoring Gamma Isotopic Report Media Type: Groundwater Quantity: Liters Concentration (Activity): pCi/L Sample Point Sample Date Quantity Isotope Activity 2 Sigma Error 39 39 39 39 39 39 39 39 39 39 39 39 39 39 39 39 39 39 39 39 39 39 39 39 39 39 DEEP WELL NEAR DIABASE DIKES DEEP WELL NEAR DIABASE DIKES DEEP WELL NEAR DIABASE DIKES DEEP WELL NEAR DIABASE DIKES DEEP WELL NEAR DIABASE DIKES DEEP WELL NEAR DIABASE DIKES DEEP WELL NEAR DIABASE DIKES DEEP WELL NEAR DIABASE DIKES DEEP WELL NEAR DIABASE DIKES DEEP WELL NEAR DIABASE DIKES DEEP WELL NEAR DIABASE DIKES DEEP WELL NEAR DIABASE DIKES DEEP WELL NEAR DIABASE DIKES DEEP WELL NEAR DIABASE DIKES DEEP WELL NEAR DIABASE DIKES DEEP WELL NEAR DIABASE DIKES DEEP WELL NEAR DIABASE DIKES DEEP WELL NEAR DIABASE DIKES DEEP WELL NEAR DIABASE'DIKES DEEP WELL NEAR DIABASE DIKES DEEP WELL NEAR DIABASE DIKES DEEP WELL NEAR DIABASE DIKES DEEP WELL NEAR DIABASE DIKES DEEP WELL NEAR DIABASE DIKES DEEP WELL NEAR DIABASE DIKES DEEP WELL NEAR OIABASE DIKES 8/23/2000 11/15/2000 2/21/2001 5/23/2001 8/29/2001 11/27/2001 2/26/2002 5/30/2002 8/29/2002 11/22/2002 2/13/2003 5/14/2003 8/28/2003 11/11/2003 2/19/2004 5/20/2004 8/12/2004 11/10/2004 2/16/2005 5/19/2005 8/24/2005 11/16/2005 2/15/2006 5/18/2006 8123/2006 1111412006 NO-ACT NO-ACT NO-ACT NO-ACT NO-ACT NO-ACT NO-ACT NO-ACT NO-ACT NýO-ACT NO-ACT K-40 K-40 NO-ACT NO-ACT NO-ACT NO-ACT NO-ACT NO-ACT PB-212 K-40 NO-ACT NO-ACT NO-ACT NO-ACT B1-214 1.32E+02 1.56E+02 5.25E+00 7.90E+01 4.95E+01 4.96E+01 8.01E+01 4.19E+00 7.70E+01 9.05E+00 Page 2 of 17

HNP Radiological Environmental Monitoring Gamma Isotopic Report Media Type: Groundwater Quantity: Liters Concentration (Actii Sample Point 39 39 39 39 39 39 39 39 39 39 3

39 39 39 39 39 39 39 39 39 39 57 57 57 57 57 vity): pCi/L Sample Date DEEP WELL NEAR DIABASE DIKES DEEP WELL NEAR DIABASE DIKES DEEP WELL NEAR DIABASE DIKES DEEP WELL NEAR DIABASE DIKES DEEP WELL NEAR DIABASE DIKES DEEP WELL NEAR DIABASE DIKES DEEP WELL NEAR DIABASE DIKES DEEP WELL NEAR DIABASE DIKES DEEP WELL NEAR DIABASE DIKES DEEP WELL NEAR DIABASE DIKES DEEP WELL NEAR DIABASE DIKES DEEP WELL NEAR DIABASE DIKES DEEP WELL NEAR DIABASE DIKES DEEP WELL NEAR DIABASE DIKES DEEPWELL NEAR DIABASE DIKES D

DEEP WELL NEAR DIABASE DIKES DEEP WELL NEAR DIABASE DIKES DEEP WELL NEAR DIABASE DIKES DEEP WELL NEAR DIABASE DIKES DEEP WELL NEAR DIABASE DIKES 0.4 MI SSW SECTOR N BANK ESW INTAKE 0.4 MI SSW SECTOR N BANK ESW INTAKE 0.4 MI SSW SECTOR N BANK ESW INTAKE 0.4 MI SSW SECTOR N BANK ESW INTAKE 0.4 M1 SSW SECTOR N BANK ESW INTAKE 11/14/2006 11/14/2006 2/14/2007 5/23/2007 5/23/2007 5/23/2007 8/15/2007 8/15/2007 11/8/2007 11/8/2007 12/13/2007 12/13/2007 2/19/2008 2/19/2008 2/19/2008 5/20/2008 8/19/2008 8/19/2008 8/19/2008 8/19/2008 2/28/1994 6/3/1994 8/10/1994 11/22/1994 3/7/1995 6/2/1995 Quantity 1

1*

1-1 1

1

-1*

1 1

.1 1

1 1

1 I

1 1

1 1

1-1 1

IsotOpe PB-214 PB-212 NO-ACT PB-212 BI-214 PB-214 PB-212 BI-214 BI-214 PB-214 BI-214 PB-212 BI-214 PB-214 PB-212 BI-214 TL-208 PB-212 K-40 BI-214 NO-ACT NO-ACT NO-ACT NO-ACT NO-ACT K-40 Activity 1.89E+01 8.29E+00 4.99E+00 2.78E+01 2.39E+01 4.80E+00 1.13E+01 1.67E+01 1.10E+01 8.19E+00 5.85E+00 2.01E+01 1.59E+01 7.70E+00 7.67E+00 7.31E+00 6.01E+00 2.57E+02 1.78E+01

<LLD

<LLD

<LLD

<LLD

<LLD 1.09E+02 2 Sigma Error 8.03E+00 4.69E+00 4.07E+00 9.24E+00 8.51 E+00 3.75E+00

  • 6.41E+00 7.68E+00 5.90E+00 6.48E+00 3.71E+00 8.62E+00 6.43E+00 3.41 E+00 5.91 E+00 3.65E+00 4.98E+00 6.09E+01
  • 8.67E+00 7.OOE+01 57 0.4 MI SSW SECTOR N BANK ESW INTAKE Page. 3 of 17

HNP Radiological Environmental Monitoring Gamma Isotopic Report Media Type: Groundwater Quantity: Liters Concentration (Activity): pCi/L Sample Point Sample Date Quantity Isotope Activity 2 Sigma Error 57 0.4 MI SSW SECTOR N BANK ESW INTAKE 9/6/1995 1

NO-ACT

<LLD 57 0.4 MI SSW SECTOR N BANK ESW INTAKE 11/28/1995 1

NO-ACT

<LLD 57 0.4 MI SSW SECTOR N BANK ESW INTAKE 11/28/1995 1

K-40 3.92E+02 7.50E+01 57 0.4 MI SSW SECTOR N BANK ESW INTAKE 11/28/1995 1

K-40 3.56E+02 8.OOE+01 57 0.4 MI SSW SECTOR N BANK ESW INTAKE 11/28/1995 1

TL-208 5.07E+00 4.88E+0o 57 0.4 MI SSW SECTOR N BANK ESW INTAKE 11/28/1995 1

TL-208 5.07E+00 4.88E+00 57 0.4 MI SSW SECTOR N BANK ESW INTAKE 11/28/1995 1

1-131

<LLD 57 0.4 MI SSW SECTOR N BANK ESW INTAKE 2/23/1996 1

K-40 2.77E+02 8.20E+01 57 0.4 MI SSW SECTOR N BANK ESW INTAKE 6/21/1996 1

NO-ACT

<LLD 57 0.4 MI SSW SECTOR N BANK ESW INTAKE 9/24/1996 1

PB-212 5.98E+00 5.59E+00 57 0.4 MI SSW SECTOR N BANK ESW INTAKE 9124/1996 1

K-40 3.26E+02 6.80E+01 57 0.4 MI SSW SECTOR N BANK ESW INTAKE 12/5/1996 1

NO-ACT 57 0.4 MI SSW SECTOR N BANK ESW INTAKE 2/25/1997 1

NO-ACT 57 0.4MI SSW SECTOR N BANK ESW INTAKE 5/20/1997 1

NO-ACT 57 0.4 MI SSW SECTOR N BANK ESW INTAKE 8/28/1997 1

NO-ACT 57 0.4 MI SSW SECTOR N BANK ESW INTAKE 12/1611997 1

K-40 2.53E+02 7.56E+01 57 0.4 MI SSW SECTOR N BANK ESW INTAKE 3/5/1998 1

NO-ACT 57 0.4 MI SSW SECTOR N BANK ESW INTAKE 6/16/1998 1

K-40 3.51 E+02 7.71E+01 57 0.4 MI SSW SECTOR N BANK ESW INTAKE 9/3/1998 1

K-40 1.37E+02 5.89E+01 57 0.4 MI SSW SECTOR N BANK ESW INTAKE 11/19/1998 1

NO-ACT 57 0.4 MI SSW SECTOR N BANK ESW INTAKE 2/17/1999 1

NO-ACT 57 0.4 MI SSW SECTOR N BANK ESW INTAKE 6/11/1999 1

NO-ACT 57 0.4 MI SSW SECTOR N BANK ESW INTAKE 9/7/1999 1

NO-ACT

. 57 0.4 MI SSW SECTOR N BANK ESW INTAKE 11/23/1999 1

NO-ACT 57 0.4 MI SSW SECTOR N BANK ESW INTAKE 2/23/2000 1

NO-ACT 57 0.4 MI SSW SECTOR N BANK ESW INTAKE 5/23/2000 1

NO-ACT Page 4 of l7

Media Quant Conce Sam HNP Radiological Environmental Monitoring Gamma Isotopic Report Type: Groundwater ity: Liters wntration (Activity): pCitL tle Point Sample Date Ouantity Isotope Activity 2 Sigma Error IY 57 57 57 57 57 57 57 57 57 57 57 57 57 57 57 57 57 57 57 57 57 57 57 57 57 57 0.4 MI SSW SECTOR N BANK ESW INTAKE 0.4 MI SSW SECTOR N BANK ESW INTAKE 0.4 MI SSW SECTOR N BANK ESW INTAKE 0.4 MI SSW SECTOR N BANK ESW INTAKE 0.4 MI SSW SECTOR N BANK ESW INTAKE 0:4 MI SSW SECTOR N BANK ESW INTAKE 0.4 MI SSW SECTOR N BANK ESW INTAKE 0.4 MI SSW SECTOR N BANK ESW INTAKE 0.4 MI SSW SECTOR N BANK ESW INTAKE 0.4 MI SSW SECTOR N BANK ESW INTAKE 0.4 MI SSW SECTOR N BANK ESW INTAKE 0.4 MI SSW SECTOR N BANK ESW INTAKE 0.4 MI SSW SECTOR N BANK ESW INTAKE 0.4 MI SSW SECTOR N BANK ESW INTAKE 0.4 MI SSW SECTOR N BANK ESW INTAKE 0.4 MI SSW SECTOR N BANK ESW INTAKE 0.4 MI SSW SECTOR N BANK ESW INTAKE 0.4 MI SSW SECTOR N BANK ESW INTAKE 0.4 MI SSW SECTOR N BANK ESW INTAKE 0.4 MI SSW SECTOR N BANK ESW INTAKE 0.4 MI SSW SECTOR N BANK ESW INTAKE 0.4 MI SSW SECTOR N BANK ESW INTAKE 0.4 MI SSW SECTOR N BANK ESW INTAKE 0.4 MI SSW SECTOR N BANK ESW INTAKE 0.4 MI SSW SECTOR N BANK ESW INTAKE 0.4 MI SSW SECTOR N BANK ESW INTAKE 8/23/2000 11/15/2000 2/21/2001 5/23/2001 8/29/2001 11/27/2001 2/26/2002 5/30/2002 8/29/2002 11/22/2002 2/13/2003 5/14/2003 5/14/2003 8/28/2003 11/11/2003 2/19/2004 5/20/2004 5/20/2004 8/12/2004 11/10/2004 2/16/2005 5/19/2005" 8/24/2005 11/16/2005 2/15/2006 5/18/2006 NO-ACT NO-ACT NO-ACT NO-ACT K-40 K-40 NO-ACT NO-ACT NO-ACT NO-ACT K-40 K-40 TL-208 PB-212 NO-ACT NO-ACT PB-214 BI-214 NO-ACT NO-ACT K-40 K-40 NO-ACT NO-ACT NO-ACT K-40 6.84E+01 1.70E+02 9.76E+01 6.96E+01 5.85E+00 8.80E+00 1.02E+01 1.87E+01 2.97E+02 9.57E+01 1.70E+02 5.49E+01 6.41 E+01 5.31E+01 5.52E+01 3.43E+00 3.34E+00 8.77E+00 9.60E+00 6.76E+01 7.66E+01 8.02E+01 Page 5of 17

0 HNP Radiological Environmental Monitoring Gamma Isotopic Report Media Type. Groundwater Quantity: Liters Concentration (Activity): pCi/L Sample Point Sample Date Quantity Isotope Activity 2 Sizma L3?rror 0.4 MI SSW SECTOR N BANK ESW INTAKE 0.4 MI SSW SECTOR N BANK ESW INTAKE 0.4 MI SSW SECTOR N BANK ESW INTAKE 0.4 MI SSW SECTOR N BANK ESW INTAKE 0.5 MI WSW SECTOR N BANK ESW INTAKE 0.5 MI WSW SECTOR N BANK ESW INTAKE 0.5 MI WSW SECTOR N BANK ESW INTAKE 0.5 MI WSW SECTOR N BANK ESW INTAKE 0.5 MI WSW SECTOR N BANK ESW INTAKE 0.5 MI WSW SECTOR, N BANK ESW INTAKE 0.5 MI WSW SECTOR N BANK ESWY INTAKE 0.5 MI WSW SECTOR N BANK ESW INTAKE 0.5 MI WSW SECTOR NBANK ESW INTAKE 0.5 MI WSW SECTOR N BANK ESW INTAKE 0.5 MI WSW SECTOR N BANK ESW INTAKE 0.5 MI WSW SECTOR N BANK ESW INTAKE 0.5 MI WSW SECTOR N BANK ESW INTAKE 0.5 MI WSW SECTOR N BANK ESW INTAKE 0.5 MI WSW SECTOR N BANK ESW INTAKE 0.5 MI WSW'SECTOR N BANK ESW INTAKE 0.5 MI WSW SECTOR N BANK ESW INTAKE 0.5 MI WSW SECTOR N BANK ESW INTAKE 0.5 MI WSW SECTOR N BANK ESW INTAKE 0.5 MI WSW SECTOR N BANK ESW INTAKE 0.5 MI WSW SECTOR N BANK ESW INTAKE 0.5 MI WSW SECTOR N BANK ESW INTAKE 8/23/2006 11/14/2006 11/14/2006 2/14/2007 2/28/1994 6/3/1994 8/10/1994 11/22/1994 3/7/1995 6/2/1995 9/6/1995 9/6/1995 11/28/1995 11/28/1995 2/23/1996 6/21/1996 9/24/1996 12/5/1996 2/25/1997 5/20/1997 8/28/1997 12/16/1997 3/5/1998 6/16/1998 9/3/1998 11/19/1998 NO-ACT PB-214 BI-214 NO-ACT NO-ACT NO-ACT NO-ACT NO-ACT NO-ACT NO-ACT NO-ACT RA-226 NO-ACT RA-226 NO-ACT NO-ACT NO-ACT NO-ACT NO-ACT NO-ACT K-40 NO-ACT RA-226 NO-ACT NO-ACT NO-ACT 2.46E+01 3.54E+01

<LLD

<LLD

<LLD

<LLD

<LLD

<LLD

<LLD 1.07E+02

<LLD 9.96E+01

<LLD

<LLD

<LLD 3.05E+02 7.36E+01 9.14E+00 1.08E+01 7.10E+01 9.33E+01 6.62E+01 6.40E+01 Page 6 of 17

HNP Radiological Environmental Monitoring Gamma Isotopic Report Media Type: Groundwater Quantity: Liters Concentration (Activity): pCi/L Sample Point Sample Date Quantity Isotope Activity 2 Sigma Error 58 0.5 MI WSW SECTOR N BANK ESW INTAKE 2/17/1999 1

NO-ACT 58 0.5 MI WSW SECTOR N BANK ESW INTAKE 6/11/1999 1

NO-ACT 58 0.5 MI WSW SECTOR N BANK ESW INTAKE 9/7/1999 1

NO-ACT 58 0.5 MI WSW SECTOR N BANK ESW INTAKE 11/23/1999 1

K-40 8.47E+01 6.66E+01 58 0.5 MI WSW SECTOR N BANK ESW INTAKE 2/23/2000 1

K-40 1.22E+02 9.04E+01 58 0.5 MI WSW SECTOR N BANK ESW INTAKE 5/23/2000 1

NO-ACT 58 0.5 MI WSW SECTOR N BANK ESW INTAKE 8/23/2000 1

NO-ACT 58 0.5 MI WSW SECTOR N BANK ESW INTAKE 11/15/2000 1

NO-ACT 58 0.5 MI WSW SECTOR N BANK ESW INTAKE 2/21/2001 1

NO-ACT 58 0.5 MI WSW SECTOR N BANK ESW INTAKE 6/4/2001 1

NO-ACT 58 0.5 MI WSW SECTOR N BANK ESW INTAKE 8/29/2001 1

NO-ACT 58 0.5 MI WSW SECTOR N BANK ESW INTAKE 11/27/2001 1

K-40 3.22E+02 7.54E+01 58 0.5 MI WSW SECTOR N BANK ESW INTAKE 2/27/2002 1

NO-ACT 58 0.5 MI WSW SECTOR N BANK ESW INTAKE 5/30/2002 1

K-40 6.44E+01 5.85E+01 58 0.5 MI WSW SECTOR N BANK ESW INTAKE 8/29/2002 1

K-40 3.36E+02 9.14E+01 58 0.5 MI WSW SECTOR N BANK ESW INTAKE 11/22/2002 1

NO-ACT 58 0.5 MI WSW SECTOR N BANK ESW INTAKE 2/13/2003 1

K-40 3.72E+02 7.98E+01 58 0.5 MI WSW SECTOR N BANK ESW INTAKE 5/14/2003 1

NO-ACT 58 0.5 MI WSW SECTOR N BANK ESW INTAKE 8/28/2003 1

NO-ACT 58 0.5 MI WSW SECTOR N BANK ESW INTAKE 11/11/2003 1

NO-ACT 58 0.5 MI WSW SECTOR N BANK ESW INTAKE 2/19/2004 1

NO-ACT 58 0.5 MI WSW SECTOR N BANK ESW INTAKE 5/20/2004 1

NO-ACT 58 0.5 MI WSW SECTOR N BANK ESW INTAKE 8/12/2004 1

K-40 1.14E+02 9.63E+01 58 0.5 MI WSW SECTOR N BANK ESW INTAKE 8/12/2004 1

RA-226 1.26E+02 9.00E+01 58 0.5 MI WSW SECTOR N BANK ESW INTAKE 8/12/2004 1

TL-208 5.61 E+00 3.44E+00 58 0.5 MI WSW SECTOR N BANK ESW INTAKE 11/10/2004 1

RA-226 6.53E+01 4.30E+01 Page 7of17

HNP Radiological Environmental Monitoring Gamma Isotopic Report Media Type: Groundwater Quantity: Liters Concentration (Activity): pCi/L Sample Point Sample Date Quantity Isotope Activity 2 Sigma Error 58 0.5 MI WSW SECTOR N BANK ESW INTAKE 58 0.5 MI WSW SECTOR N BANK ESW INTAKE 58 0.5 MI WSW SECTOR N BANK ESW INTAKE 58 0.5 MI WSW SECTOR N BANK ESW INTAKE 58 0.5 MI WSW SECTOR N BANK ESW INTAKE 58 0.5 MI WSW SECTOR N BANK ESW INTAKE 58 0.5 MI WSW SECTOR N BANK ESW INTAKE 59 0.5 MI NNE SECTOR (NEAR CONSTRUCTION RD) 59 0.5 MI NNE SECTOR (NEAR CONSTRUCTION RD) 59 0.5 MI NNE SECTOR (NEAR CONSTRUCTION RD) 59 0.5 MI NNE SECTOR (NEAR CONSTRUCTION RD) 59 0.5 MI NNE SECTOR (NEAR CONSTRUCTION RD) 59 0.5 MI NNE SECTOR (NEAR CONSTRUCTION RD) 59 0.5 MI NNE SECTOR (NEAR CONSTRUCTION RD) 59 0.5 MI NNE SECTOR (NEAR CONSTRUCTION RD) 59 0.5 MI NNE SECTOR (NEAR CONSTRUCTION RD) 59 0.5 MI NNE SECTOR (NEAR CONSTRUCTION RD) 59 0.5 MI NNE SECTOR (NEAR CONSTRUCTION RD) 59 0.5 MI NNE SECTOR (NEAR CONSTRUCTION RD) 59 0.5 MI NNE SECTOR (NEAR CONSTRUCTION RD) 59 0.5 MI NNE SECTOR (NEAR CONSTRUCTION RD) 59 0.5 MI NNE SECTOR (NEAR CONSTRUCTION RD) 59 0.5 MI NNE SECTOR (NEAR CONSTRUCTION RD) 59 0.5 MI NNE SECTOR (NEAR CONSTRUCTION RD) 59 0.5 MI NNE SECTOR (NEAR CONSTRUCTION RD) 59 0.5 MI NNE SECTOR (NEAR CONSTRUCTION RD) 2/16/2005 5/19/2005 8/24/2005 11/16/2005 2/15/2006 5/18/2006 5/18/2006 2/28/1994 2/28/1994 6/311994 8/10/1994 11/22/1994 3/7/1995 6/2/1995 9/6/1995 11/28/1995 2/2311996 6/21/1996 9/24/1996 12/5/1996 2/25/1997 5/20/1997 8/28/1997 12/16/1997 3/5/1998 6/16/1998 NO-ACT NO-ACT K-40 NO-ACT NO-ACT BI-214 PB-214 TL-208 TL-208 NO-ACT NO-ACT NO-ACT K-40 K-40 K-40 K-40 K40 K-40 K-40 NO-ACT NO-ACT NO-ACT K-40 K-40 NO-ACT NO-ACT 1.31 E+02 8.73E+00 9.99E+00 3.51 E+00 2.65E+00

<LLD

<LLD

<LLD 9.06E+01 3.92E+02 3.78E+02 3.48E+02 3.61 E+02 2.56E+02 2.99E+02 3.12E+02 3.77E+02 8.74E+01 7.99E+00 6.62E+00 2.14E+00 1.87E+00 8.38E+01 9.30E+01 7.30E+01 1.15E+02 9.80E+01 8.OOE+01 6.OOE+01 6.70E+01 9.45E+01 Page A of 17

HNP Radiological Environmental Monitoring Gamma Isotopic Report Media Type: Groundwater Quantity: Liters Concentration (Activity): pCi/L Sample Point Sample Date Quantity Isotope Activity 2 Sigma Error 0.5 MI NNE SECTOR (NEAR CONSTRUCTION RD) 0.5 MI NNE SECTOR (NEAR CONSTRUCTION RD) 0.5 MI NNE SECTOR (NEAR CONSTRUCTION RD) 0.5 MI NNE SECTOR (NEAR CONSTRUCTION RD) 0.5 MI NNE SECTOR (NEAR CONSTRUCTION RD) 0.5 MI NNE SECTOR (NEAR CONSTRUCTION RD) 0.5 MI NNE SECTOR (NEAR CONSTRUCTION RD) 0.5 MI NNE SECTOR (NEAR CONSTRUCTION RD).

0.5 MI NNE SECTOR (NEAR CONSTRUCTION RD) 0.5 MI NNE SECTOR (NEAR CONSTRUCTION RD) 0.5 MI NNE SECTOR (NEAR CONSTRUCTION RD) 0.5 MI NNE SECTOR (NEAR CONSTRUCTION RD) 0.5 MI NNE SECTOR (NEAR CONSTRUCTION RD) 0.5 MI NNE SECTOR (NEAR CONSTRUCTION RD) 0.5 MI NNE SECTOR (NEAR CONSTRUCTION RD) 0.5 MI NNE SECTOR (NEAR CONSTRUCTION RD) 0.5 MI NNE SECTOR (NEAR CONSTRUCTION RD) 0.5 MI NNE SECTOR (NEAR CONSTRUCTION RD) 0.5 MI NNE SECTOR (NEAR CONSTRUCTION. RD) 0.5 MI NNE SECTOR (NEAR CONSTRUCTION RD) 0.5 MI NNE SECTOR (NEAR CONSTRUCTION RD) 0.5 MI NNE SECTOR (NEAR CONSTRUCTION RD) 0.5 MI NNE SECTOR (NEAR CONSTRUCTION RD) 0.5 MI NNE SECTOR (NEAR CONSTRUCTION RD) 0.5 MI NNE SECTOR (NEAR CONSTRUCTION RD) 0.5 MI NNE SECTOR (NEAR CONSTRUCTION RD) 9/3/1998 11/19/1998 2/17/1999 6/11/1999 9/7/1999 11/23/1999 2/23/2000 5/23/2000 8/23/2000 11/15/2000 2/21/2001 5/23/2001 8/29/2001 11/27/2001 2/26/2002 5/30/2002 9/9/2002 11/22/2002 2/13/2003 5/14/2003 8/28/2003 11/11/2003 2/19/2004 5/20/2004 8/12/2004 11/10/2004 NO-ACT NO-ACT NO-ACT NO-ACT NO-ACT NO-ACT NO-ACT NO-ACT NO-ACT NO-ACT NO-ACT NO-ACT K-40 NO-ACT NO-ACT NO-ACT NO-ACT NO-ACT NO-ACT NO-ACT K-40 K-40 NO-ACT NO-ACT NO-ACT PB-212 2.47E+02 1.22E+02 3.38E+02 6.11E+00 6.19E+01 4.64E+01 8.30E+01 3.51 E+00 Page 9,of 17

HNP Radiological Environmental Monitoring Gamma Isotopic Report Media Type: Groundwater Quantity: Liters Concentration (Activity): pCi/L Sample Point Sample Date Quantity Isotope Activity 2 Sigma Error 59 0.5 MI NNE SECTOR (NEAR CONSTRUCTION RD) 59 0.5 MI NNE SECTOR (NEAR CONSTRUCTION RD) 59 0.5 MI NNE SECTOR (NEAR CONSTRUCTION RD) 59 0.5 MI NNE SECTOR (NEAR CONSTRUCTION RD) 59 0.5 MI NNE SECTOR (NEAR CONSTRUCTION RD) 59 0.5 MI NNE SECTOR (NEAR CONSTRUCTION RD) 59 0.5 MI NNE SECTOR (NEAR CONSTRUCTION RD) 59 0.5 MI NNE SECTOR (NEAR CONSTRUCTION RD) 59 0.5 MI NNE SECTOR (NEAR CONSTRUCTION RD) 59 0.5 MI NNE SECTOR (NEAR CONSTRUCTION RD) 59 0.5 MI NNE SECTOR (NEARCONSTRUCTION RD) 59 0.5 MI NNE SECTOR (NEAR CONSTRUCTION RD) 59 0.5 MI NNE SECTOR (NEAR CONSTRUCTION RD) 59 0.5 MI NNE SECTOR (NEAR CONSTRUCTION RD) 59 0.5 MI NNE SECTOR (NEAR CONSTRUCTION RD) 59 0.5 MI NNE SECTOR (NEAR CONSTRUCTION RD) 59 0.5 MI NNE SECTOR (NEAR CONSTRUCTION RD) 59 0.5 MI NNE SECTOR (NEAR CONSTRUCTION RD) 59 0.5 MI NNE SECTOR (NEAR CONSTRUCTION RD) 59 0.5 MI NNE SECTOR (NEAR CONSTRUCTION RD) 59 0.5 MI NNE SECTOR (NEAR CONSTRUCTION RD) 59 0.5 MI NNE SECTOR (NEAR CONSTRUCTION RD) 59 0.5 MI NNE SECTOR (NEAR CONSTRUCTION RD) 59 0.5 MI NNE SECTOR (NEAR CONSTRUCTION RD) 59 0.5 MI NNE SECTOR (NEAR CONSTRUCTION RD) 59 0.5 MI NNE SECTOR (NEAR CONSTRUCTION RD) 2/16/2005 5/19/2005 5/19/2005 8/24/2005.

11/16/2005 2/1512006 5/18/2006 8/23/2006 11/14/2006 11/14/2006 2/14/2007 5/23/2007 5/23/2007 8/15/2007 11/8/2007 11/8/2007 12/13/2007 2/19/2008 2/19/2008 5/20/2008 8/19/2008 8/19/2008 8/19/2008 8/19/2008 8/19/2008 8/19/2008 NO-ACT PB-212 K-40 NO-ACT NO-ACT NO-ACT NO-ACT NO-ACT PB-214 BI-214 PB-214 BI-214 PB-214 BI-214 PB-214 BI-214 NO-ACT PB-214 BI-214 PB-214 TH-234 31-214 PB-214 K-40 RA-226 7.56E+00 1.36E+02 1.28E+01 2.98E+01 1.47E+01 2.19E+01 1.88E+01 1.68E+01 1.89E+01 3.84E+01 3.19E+01 4.28E+01 1.04E+01 6.19E+01 2.42E+01 1.98E+01 1.60E+02 9.87E+01 5.63E+00 8.97E+01 7.28E+00 8.22E+00 6.59E+00 8.31 E+00 8.35E+00 7.52E+00 5.80E+00 9.72E+00 9.15E+00 1.10E+01 8.03E+00 5.93E+01 6.29E+00 7.30E+00 4.09E+01 4.29E+01 4.21 E+00 PB-212 4.28E+00 Page 10oofl17

HNP Radiological Environmental Monitoring Gamma Isotopic Report Media Type: Groundwater Quantity: Liters Concentration (Activity): pCi/L Sample Point Sample Date Quantity Isotope Activity 2 Sigma Error 60 0.5 MI ESE SECTOR W BANK OF THOMAS CREEK 2/28/1994 1

K-40 3.56E+02 5.80E+01 60 0.5 MI ESE SECTOR W BANK OF THOMAS CREEK 2/28/1994 1

K-40 3.20E+00 3.20E-01 60 0.5 MI ESE SECTOR W BANK OF THOMAS CREEK 6/3/1994 1

NO-ACT

<LLD 60 0.5 MI ESE SECTOR W BANK OF THOMAS CREEK 6/3/1994 1

1-131

<LLD 60 0:5 MI ESE SECTOR W BANK OF THOMAS CREEK 8/10/1994 1

NO-ACT

<LLD 60 0.5 MI ESE SECTOR W BANK OF THOMAS CREEK 11/22/1994 1

NO-ACT

<LLD 60

  • 0.5 MI ESE SECTOR W BANK OF THOMAS CREEK 3/7/1995 1

K-40 1.46E+02 6.10E+01 60 0.5 MI ESE SECTOR W BANK OF.THOMAS CREEK 3/7/1995 1

K-40 4.66E+00 7.70E-01 60 0.5 MI ESE SECTOR W BANK OF THOMAS CREEK 6/2/1995 1

NO-ACT

<LLD

60.

0.5 MI ESE SECTOR W BANK OF THOMAS CREEK 9/6/1995 1

NO-ACT

<LLD 60 0.5 MI ESE SECTOR W BANK OF THOMAS CREEK 11/28/1995 1

NO-ACT

<LLD 60 0.5 MI ESE SECTOR W BANK OF THOMAS CREEK 2/23/1996 1

NO-ACT

<LLD 60 0.5-MI ESE SECTOR W BANK OF THOMAS CREEK 6/21/1996 1

NO-ACT

<LLD 60 0.5 MI ESE SECTOR W BANK OF THOMAS CREEK 9/24/1996

1.

NO-ACT

<LLD 60 0.5 MI ESE SECTOR W BANK OF THOMAS CREEK 12/5/1996 1

NO-ACT 60 0.5 MI ESE SECTOR W BANK OF THOMAS CREEK 2/25/1997 1

NO-ACT 60 0.5 MI ESE SECTOR W BANK OF THOMAS CREEK 5/20/1997 1

NO-ACT 60 0.5 MI ESE SECTOR W BANK OF THOMAS CREEK 8/28/1997 1

K-40 3.88E+02 7.46E+01 60 0.5 MI ESE SECTOR W BANK OF THOMAS CREEK 12/16/1997 1

NO-ACT 60 0.5 MI ESE SECTOR W BANK OF THOMAS CREEK 3/5/1998 1

NO-ACT 60 0.5 MI ESE SECTOR W BANK OF THOMAS CREEK 6/16/1998 1

NO-ACT 60 0.5 MI ESE SECTOR W BANK OF THOMAS CREEK 9/3/1998 1

NO-ACT 60 0.5 M1 ESE SECTOR W BANK OF THOMAS CREEK 11/19/1998 1

NO-ACT 60 0.5 MI ESE SECTOR W BANK OF THOMAS CREEK 2/17/1999 1

NO-ACT 60 0.5 MI ESE SECTOR W BANK OF THOMAS CREEK 6/11/1999 1

NO-ACT 60 0.5 MI ESE SECTOR W BANK OF THOMAS CREEK 9/711999 1

NO-ACT Page 11 of 17

"7 HNP Radiological Environmental Monitoring Gamma Isotopic Report Media Type: Groundwater Quantity: Liters Concentration (Activity): pCi/L Sample Point Sample Date Quantity Isotope Activity 2 Sigma Error 0.5 MI ESE SECTOR W BANK OF THOMAS CREEK 0.5 MI ESE SECTOR W BANK OF THOMAS CREEK 0.5 MI ESE SECTOR W BANK OF THOMAS CREEK 0.5 MI ESE SECTOR W BANK OF THOMAS CREEK 0.5 MI.ESE SECTOR W BANK OF THOMAS CREEK 0.5 MI ESE SECTOR W BANK OF THOMAS CREEK 0.5 MI ESE SECTOR W BANK OF THOMAS CREEK 0.5 MI ESE SECTOR W BANK OF THOMAS CREEK 0.5 MI ESE SECTOR W BANK OF THOMAS CREEK 0.5 MI ESE SECTOR W BANK OF THOMAS CREEK 0.5 MI ESE SECTOR W BANK OF THOMAS CREEK 0.5 MI ESE SECTOR W BANK OF THOMAS CREEK 0.5 MI ESE SECTOR W BANK OF THOMAS CREEK 0.5 MI ESE SECTOR W BANK OF THOMAS CREEK 0.5 MI ESE SECTOR W BANK OF THOMAS CREEK 0.5 MI ESE SECTOR W BANK OF THOMAS CREEK 0.5 MI ESE SECTOR W BANK OF THOMAS CREEK 0.5 MI ESE SECTOR W BANK OF THOMAS CREEK 0.5 MI ESE SECTOR W BANK OF THOMAS CREEK 0.5 MI ESE SECTOR W BANK OF THOMAS CREEK 0.5 MI ESE SECTOR W BANK OF THOMAS CREEK 0.5 MI ESE SECTOR W BANK OF THOMAS CREEK 0.5 MI ESE SECTOR W BANK OF THOMAS CREEK 0.5 MI ESE SECTOR W BANK OF THOMAS CREEK 0.5 MI ESE SECTOR W BANK OF THOMAS CREEK 0.5 MI ESE SECTOR W BANK OF THOMAS CREEK 11/23/1999 2/23/2000 5/23/2000 8/23/2000 11/15/2000 2/21/2001 5/23/2001 8/29/2001 11/27/2001 2/26/2002 5/30/2002 8/29/2002 11/22/2002 2/1312003 5/14/2003 8/28/2003 11/11/2003 2/19/2004 5/20/2004 8/12/2004 11/10/2004 11/10/2004 2/16/2005 5/19/2005 8/24/2005 11/16/2005 NO-ACT NO-ACT NO-ACT NO-ACT NO-ACT NO-ACT NO-ACT NO-ACT NO-ACT RA-226 NO-ACT NO-ACT NO-ACT NO-ACT NO-ACT K-40 NO-ACT NO-ACT NO-ACT NO-ACT PB-212 RA-226 NO-ACT K-40 K-40 PB-212 4.40E+01 1.56E+02 6.74E+00 5.71E+01 1.26E+02 1.42E+02 6.02E+00 3.63E+01 8.06E+01 4.37E+00 5.OOE+01 7.61 E+01 8.13E+01 5.53E+00 Page 12 of 17

HNP Radiological Environmental Monitoring Gamma Isotopic Report Media Type: Groundwater Quantity: Liters Concentration (Activity): pCi/L

'Sample Point 0.5 MI ESE SECTOR W BANK OF THOMAS CREEK 0.5 MI ESE SECTOR W BANK OF THOMAS CREEK0 0.5 MI ESE SECTOR W BANK OF THOMAS CREEK 0.5 MI ESE SECTOR W BANK OF THOMAS CREEK 0.5 MI ESE SECTOR W BANK OF THOMAS CREEK 0.5 MI ESE SECTOR W BANK OF THOMAS CREEK 0.5 MI ESE SECTOR W BANK OF THOMAS CREEK 0.5 MI ESE SECTOR W BANK OF THOMAS CREEK 0.5 MI ESE SECTOR W BANK OF THOMAS CREEK 0.5 MI ESE SECTOR W BANK OF THOMAS CREEK 0.5 MI ESE SECTOR W BANK OF THOMAS CREEK 0.5 MI ESE SECTOR W BANK OF THOMAS CREEK 0.5 MI ESE SECTOR W BANK OF THOMAS CREEK 0.5 MI ESE SECTOR W BANK OF THOMAS CREEK 0.5 MI ESE SECTOR W BANK OF THOMAS CREEK 0.5 MI ESE SECTOR W BANK OF THOMAS CREEK 0.5 MI ESE SECTOR W BANK OF THOMAS CREEK 0.5 MI ESE SECTOR W BANK OF THOMAS CREEK 0.5 MI ESE SECTORW BANK OF THOMAS CREEK 0.5 MI ESE SECTOR W BANK OF THOMAS CREEK 0.5 MI ESE SECTOR W BANK OF THOMAS CREEK 0.5 MI ESE SECTOR W BANK OF THOMAS CREEK 0.5 MI ESE SECTOR W BANK OF THOMAS CREEK 0.5 MI ESE SECTOR W BANK OF THOMAS CREEK 0.5 MI ESE SECTOR W BANK OF THOMAS CREEK W SECTOR 0.2 MI FROM SITE (N OF OLD STEAM GEN. ST Sample Date 2/15/2006 5/18/2006 5/18/2006 8/23/2006 11/14/2006 11/14/2006 11/14/2006 2/14/2007 2/14/2007 5/23/2007 8/15/2007 11/8/2007

  • 11/8/2007.

12/13/2007 2/19/2008 2/19/2008 2/19/2008 5/20/2008 5/20/2008 8/19/2008 8/19/2008 8/19/2008 8/1.9/2008 8/19/2008 8/19/2008 5/23/2007 Quantity Isotope 1

K-40 1

BI-214 1

PB-214 1

BI-214 1

PB-214 1

PB-212 1

K-40 1

PB-214 1

BI-214 1

BI-214 1

NO-ACT 1

PB-214 1

BI-214 1

NO-ACT 1

BI-214 1

PB-212 1

PB-214 1

BI-214 1

PB-214 1

PB-212 1

K-40 1

PB-214 1

RA-226

.1 BI-214 1

TH-234 1

BI-214 Activity 9.11E+01 5.12E+01 1.89E+01 1.40E+01 1.31E+01 7.38E+00 7.87E+01 1.59E+01 1.76E+01 7.43E+00 3.54E+01 5.67E+01 3.30E+01 5.55E+00 2.39E+01 5.97E+01 5.46E+ol 9.56E+00

.1.48E+02 1.84E+01 1.26E+02 2.16E+01 6.28E+01 1.16E+01 2 Sigma Error 7.22E+01 1.04E+01 7.77E+00 9.71 E+00 8.20E+00 4.14E+00 7.53E+01 1.06E+01 1.06E+01 6.20E+00 1.09E+01 1.36E+01 9.52E+00 3.62E+00 7.74E+00 9.77E+00 8.38E+00 3.81 E+00 4.27E+01 5.83E+00 5.59E+01 6.47E+00 4.45E+01 9.82E+00 Page 13 of 17

~}e~-

HNP Radiological Environmental Monitoring Gamma Isotopic Report Media Type: Groundwater Quantity: Liters Concentration (Activity): pCi/L Sample Point Sample Date Quantity Isotope Activity 2 Sigma Error 68 68 68 68 68 68 68 68 68 68 68 68 68 68 68 69 69 69 69 69 69 69 69 69 69 69 W SECTOR 0.2 MI FROM SITE (N OF OLD STEAM GEN. ST W SECTOR 0.2 MI FROM SITE (N OF OLD STEAM GEN. ST W.SECTOR 0.2 MI FROM SITE (N OF OLD STEAM GEN. ST W SECTOR 0.2 MI FROM SITE (N OF OLD STEAM GEN. ST W SECTOR 0.2 MI FROM SITE (N OF OLD STEAM GEN. ST W SECTOR 0.2 MI FROM SITE (N OF OLD STEAM GEN. ST W SECTOR 0.2 MI FROM SITE (N OF OLD STEAM GEN. ST W SECTOR 0.2 MI FROM SITE (N OF OLD STEAM GEN. ST W SECTOR 0.2 MI FROM SITE (N OF OLD STEAM GEN. ST W SECTOR 0.2 MI FROM SITE (N OF OLD STEAM GEN. ST W SECTOR 0.2 MI FROM SITE (N OF OLD STEAM GEN. ST W SECTOR 0.2 MI FROM SITE (N OF OLD STEAM GEN. ST W SECTOR 0.2 MI FROM SITE (N OF OLD STEAM GEN. ST W SECTOR 0.2 MI FROM SITE (N OF OLD STEAM GEN. ST W SECTOR 0.2 MI FROM SITE (N OF OLD STEAM GEN. ST NNE SECTOR 0.2 MILES (LOCATED ON SOUTH SIDE OF NNE SECTOR 0.2 MILES (LOCATED ON SOUTH SIDE OF NNE SECTOR 0.2 MILES (LOCATED ON SOUTH SIDE OF NNE SECTOR 0.2 MILES (LOCATED ON SOUTH SIDE OF NNE SECTOR 0.2 MILES (LOCATED ON SOUTH SIDE OF NNE SECTOR 0.2 MILES (LOCATED ON SOUTH SIDE OF NNE SECTOR 0.2 MILES (LOCATED ON SOUTH SIDE OF NNE SECTOR 0.2 MILES (LOCATED ON SOUTH SIDE OF NNE SECTOR 0.2 MILES (LOCATED ON SOUTH SIDE OF NNE SECTOR 0.2 MILES (LOCATED ON SOUTH SIDE OF NNE SECTOR 0.2 MILES (LOCATED ON SOUTH SIDE OF 8/15/2007 11/8/2007 11/8/2007 12/13/2007 2/1912008 2/19/2008 2/19/2008 2/19/2008 5/20/2008 5/20/2008 5/20/2008 8/19/2008 8/19/2008 8/19/2008 8/19/2008 5/23/2007 8/1512007 8/15/2007 11/8/2007 11/8/2007 12/13/2007 2/19/2008 5/20/2008 5/20/2008 5/20/2008 5/20/2008 BI-214 7.79E+00 BI-214 2.37E+01 PB-214 1.33E+01 TL-208 5.82E+00 PB-212 7.26E+00 PB-214 2.99E+01 BI-214 5.30E+01 TL-208 6.29E+00 PB-212 5.74E+00 BI-214 3.94E+01 PB-214 3.12E+01 PB-214 2.50E+01 BI-214 3.95E+01 PB-212 9.53E+00 K-40 1.35E+02 PB-212 3.93E+00 BI-214 9.89E+00 PB-214 7.58E+00 PB-214 9.22E+00 BI-214 1.49E+01 BI-214 8.53E400 PB-214 9.73E+00 PB-214 2.24E+01 PB-212 8.28E+00 K-40 4.43E+02 81-214 1.82E+01 7.39E+00 9.47E+00 9.18E+00 3.40E+00 6.96E+00 1.02E+01 1.36E+01 5.25E+00 5.21 E+00 1.23E+01 9.93E+00 7.37E+00 8.34E+00 3.28E+00 4.57E+01 3.69E+00 6.48E+00 6.14E+00 4.92E+00 7.74E+00 6.15E+00 7.07E+00 8.06E+00 4.64E+00 8.57E+01 1.09E+01 Page 14 of.17

HNP Radiological Environmental Monitoring Gamma Isotopic Report Media Type: Groundwater Quantity: Liters Concentration (Activity): pCi/L Sample Point Sample Date Quantity Isotope Activity 2 Sigma Error 69 NNE SECTOR 0.2 MILES (LOCATED ON SOUTH SIDE OF 8/19/2008 1

PB-212 6.94E+00 6.28E+00 69 NNE SECTOR 0.2, MILES (LOCATED ON SOUTH SIDE OF 8/19/2008 1

BI-214 2.95E+01 8.31 E+00 69 NNE SECTOR 0.2 MILES (LOCATED ON SOUTH SIDE OF 8/19/2008 1

K-40 3.22E-02, 8.81E+01 70 E SECTOR 0.4 MILES FROM SITE, ON N SIDE OF PLANT E 5/23/2007 1

PB-212 9.37E+00 7.28E+00 70 E SECTOR 0.4 MILES FROM SITE, ON N SIDE OF PLANT E 8/15/2007 1

BI-214 9.29E+00 8.47E+00 70 E SECTOR 0.4 MILES FROM SITE, ON N SIDE OF PLANT E 8/15/2007 1

PB-212 5.41 E+00 4.90E+00 70 E SECTOR 0.4 MILES FROM SITE, ON N SIDE OF PLANT E 8/15/2007 1

-TL-208 4.05E+00 3.31E+00 70 E SECTOR 0.4 MILES FROM SITE, ON N SIDE OF PLANT E 11/8/2007 1

BI-214 1.61 E+01 7.47E+00 70 E SECTOR 0.4 MILES FROM SITE, ON N SIDE OF PLANT E 11/8/2007 1

PB-214 1.51E+01 5.75E+00 70 E SECTOR 0.4 MILES FROM SITE, ON N SIDE OF PLANT E 11/8/2007 1

PB-212 4.99E+00 3.37E+00 70 E SECTOR 0.4 MILES FROM SITE, ON N SIDE OF PLANT E 11/8/2007 1

TL-208 3.50E+00 3.09E+00 70 E SECTOR 0.4 MILES FROM SITE, ON N SIDE OF PLANT E 12/13/2007 1

PB-212 6.56E+00 4.77E+00 70 E SECTOR 0.4 MILES FROM SITE, ON N SIDE OF PLANT E 2/19/2008 1

PB-214 1.34E+01 5.66E+00 70 E SECTOR 0.4 MILES FROM SITE, ON N SIDE OF PLANT E 2/19/2008 1

BI-214 9.73E+00 7.28E+00 70 E SECTOR 0.4 MILES FROM SITE, ON N SIDE OF PLANT E 5/20/2008 1

PB-214 8.00E+00 7.00E+00 70 E SECTOR 0.4 MILES FROM SITE, ON N SIDE OF PLANT E 5/20/2008 1

BI-214 1.44E+01 6.05E+00 70 E SECTOR 0.4 MILES FROM SITE, ON N SIDE OF PLANT E 8/19/2008 1

BI-214 2.OOE+01 8.22E+00 70 E SECTOR 0.4 MILES FROM SITE, ON N SIDE OF PLANT E 8/19/2008 1

TL-208 4.31 E+00 3.18E+00 70 E SECTOR 0.4 MILES FROM SITE, ON N SIDE OF PLANT E 8/19/2008 1

K-40 3.OOE+02 6.41E+01 70 E SECTOR 0.4 MILES FROM SITE,-ON N SIDE OF PLANT E 8/19/2008 1

PB-212 9.79E+00 4.22E+00 70 E SECTOR 0.4 MILES FROM SITE, ON N SIDE OF PLANT E 8/19/2008 1

TH-234 1.18E+02 8.02E+01 71 SE SECTOR 0.3 MILES FROM SITE LOCATED S OF SWITC 5/23/2007 1

TL-208 3.68E+00 2.81 E+00 71 SE SECTOR 0.3 MILES FROM SITE LOCATED S OF SWITC 5/23/2007 1"

RA-226 7.68E+01 6.78E+01 71 SE SECTOR 0.3 MILES FROM SITE LOCATED S OF SWITC 8/15/2007 1

RA-226 5.35E+01 5.OOE+01 71 SE SECTOR 0.3 MILES FROM SITE LOCATED S OF SWITC 8/15/2007 1

PB-214 8.OOE+00 5.84E+00 71 SE SECTOR 0.3 MILES FROM SITE LOCATED S OF SWITC 11/8/2007 1

NO-ACT Page 15 of 17

HNP Radiological Environmental Monitoring Gamma Isotopic Report Media Type: Groundwater Quantity: Liters Concentration (Activity): pC/IL Sample Point Sample Date Quantity Isotope Activity 2 Sigma Error 71 71 71 71 71 71 71 71 71 71 71 71 SE SECTOR 0.3 MILES FROM SITE LOCATED S OF SWITC SE SECTOR 0.3 MILES FROM SITE LOCATED S OF SWITC SE SECTOR 0.3 MILES FROM SITE LOCATED S OF SWITC SE SECTOR 0.3 MILES PROM SITE LOCATED S OF SWlTC SE SECTOR 0.3 MILES FROM SITE LOCATED S OF SWITC SE SECTOR 0.3 MILES FROM SITE LOCATED S OF SWITC SE SECTOR 0.3 MILES FROM SITE LOCATED S OF SWITC SE SECTOR 0.3 MILES FROM SITE LOCATED S OF SWITC SE SECTOR 0.3 MILES FROM SITE LOCATED S OF SWITC SE SECTOR 0.3 MILES FROM SITE LOCATED S OF SWITC SE SECTOR 0.3 MILES FROM SITE LOCATED S OF SWITC SE SECTOR 0.3 MILES FROM SITE LOCATED S OF SWITC 72 SE SECTOR 0.2 MILES FROM SITE, 72 SE SECTOR 0.2 MILES FROM SITE, 72 SE SECTOR 0.2 MILES FROM SITE, 72 SE SECTOR 0.2 MILES FROM SITE, 72 SE SECTOR 0.2 MILES FROM SITE, 72 SE SECTOR 0.2 MILES FROM SITE, 72 SE SECTOR 0.2 MILES FROM SITE, 72 SE SECTOR 0.2 MILES FROM SITE, 72 SE SECTOR 0.2 MILES FROM SITE, 72 SE SECTOR 0.2 MILES FROM SITE, 72 SE SECTOR 0.2 MILES FROM SITE, 72 SE SECTOR 0.2 MILES FROM SITE, 72 SE SECTOR 0.2 MILES FROM SITE, 72 SE SECTOR 0.2 MILES FROM SITE, N OF INTAKE STRUC N OF INTAKE STRUC N OF INTAKE STRUC N OF INTAKE STRUC N OF INTAKE STRUC N OF INTAKE STRUC N OF INTAKE STRUC N OF INTAKE STRUC N OF INTAKE STRUC N OF INTAKE STRUC N OF INTAKE STRUC N OF INTAKE STRUC N OF INTAKE STRUC N OF INTAKE STRUC 12/13/2007 12/13/2007 2/19/2008 2/19/2008 5/20/2008 8/19/2008 8/19/2008 8/1912008 8119/2008 8/19/2008 8/19/2008 8/19/2008 5/23/2007 8/15/2007 11/8/2007 12/13/2007 12/13/2007 2/19/2008 2/1912008 2/19/2008 2/19/2008 5/20/2008 5/20/2008 5/20/2008 5/20/2008 5/20/2008 PB-212 BI-214 PB-212 BI-214 TH-234 TH-234 K-40 RA-226 PB-214 BI-214 TL-208 PB-212 NO-ACT NO-ACT NO-ACT BI-214 PB-214 PB-212 BI-212 BI-214 PB-214 PB-214 K-40 RA-226 TL-208 PB-212 8.90E+00 9.04E+00 4.60E+00 2.86E+01 2.OOE+02 7.88E+01 1.30E+02 1.18E+02 1.55E+01 1.59E+01 3.87E+00 8.51 E+00 2.40E+01 209E+01 9.73E+00 2.34E+01 2.41 E+01 1.33E+01 1.52E+01 2.72E+02 8.16E+01 5.44E+00 1.26E+01 6.08E+00 7.49E+00 4.40E+00 8.78E+00 1.83E+02 5.28E+01 4.60E+01 4.95E+01 7.07E+00 6.83E+00 2.56E+00 3.49E+00 1.05E+01 1.03E+01 6.11 E+00 2.16E+01 1.18E+01 9.23E+00 8.67E+00 8.42E+01 6.43E+01 4.19E+00 6.71 E+00 Page 16 of 17

HNP Radiological Environmental Monitoring Gamma Isotopic Report Media Type: Groundwater Quantity: Liters Concentration (Activity): pCi/L Sample Point Sample Date Quantity Isotope Activity 2 Sigma Error 72 72 72 SE SECTOR 0.2 MILES FROM SITE, N OF INTAKE STRUC SE SECTOR 0.2 MILES FROM SITE, N OF INTAKE STRUC SE SECTOR 0.2 MILES FROM SITE, N OF INTAKE STRUC 5/20/2008 8/19/2008 8/19/2008 1

1 BI-214 BI-214 K-40 2.06E+01 8.49E+00 4.28E+02 6.89E+00 7.61 E+00 8.14E+01 Page 17of17

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