Table_H_Historical_Organics_3.pdf

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Sample Site

Sample Code

Sample Date

Sample Time

Dibromo-chloro-methane

1,2-Dibromo- 3-chloro-propane

1,2-Dibromo-ethane

Dibromo-methane

1,2-Dichloro-benzene

1,3-Dichloro-benzene

1,4-Dichloro-benzene

Dichloro-difluoro-methane

1,1-Dichloro-ethane

BRGW-1 N 2/26/1992 900 1.0U 1.0U 1.0U 1.0U

BRGW-1 N 5/22/1992 850 1.0U 1.0U 1.0U 1.0U 1.0U 1.0U 1.0U

BRGW-1 N 8/27/1992 1945 1.0U 1.0U 1.0U 1.0U

BRGW-1 N 12/23/1992 1210 1.0U 1.0U 1.0U 1.0U

BRGW-2 N 2/26/1992 1120 1.0U 1.0U 4.0 3.0JF%

BRGW-2 N 5/22/1992 750 1.0U 1.0U 1.0U 1.0U 1.0U 19.0 10.0

BRGW-2 N 8/26/1992 1730 1.0U 1.0U 14.0 8.0

BRGW-2 N 12/21/1992 1510 1.0U 1.0U 4.0 1.0U

BRGW-2 N 7/12/1993 1700 1.0U 5.0U 1.0U 2.0U 1.0U 1.0U 1.0U 47.0JF% 5.0JF%

BRGW-2 LS 7/13/1993 1700 107.0% 128.0% 112.0% 112.0% 106.0% 105.0% 105.0% 80.0% 100.0%

BRGW-2 N 1/26/1994 1325 1.0U 5.0U 1.0U 2.0U 1.0U 1.0U 1.0U* 25.0JV 16.0

BRGW-2 N 7/7/1994 1410 1.0U 5.0UJB% 1.0U 1.0U 1.0U 1.0U 1.0U* 61.0** 14.0

BRGW-2 TB 1/9/1995 1635 0.5UJC# 5.0UJC# 1.0UJC# 1.0UJC# 0.5UJC# 1.0JC# 0.5UJC# 211.0JC# 9.0JC#

BRGW-2 FD 7/21/1995 930 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 1.0JL% 13.0 11.0

BRGW-2 N 7/21/1995 910 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 1.0JL% 14.0 11.0

BRGW-2 N 1/12/1996 1635 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 7.0 5.0

BRGW-2 N 7/17/1996 1530 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 8.0JF% 11.0

BRGW-2 FD 7/17/1996 1530 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 17.0 12.0

BRGW-2 N 1/8/1997 1325 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.7 10.0 8.0

BRGW-2 N 7/9/1997 735 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 1.0 8.0 10.0

BRGW-2 FD 7/9/1997 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 1.0 8.0 10.0

BRGW-2 N 1/16/1998 1433 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 1.0 13.0 12.0

BRGW-2 N 7/7/1998 1225 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.8 44.0 12.0

BRGW-2 N 1/13/1999 1628 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 5.0 4.0

BRGW-2 N 7/16/1999 1510 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 12.0 4.0

BRGW-2 N 1/12/2000 1312 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 11.0 3.0

BRGW-2 N 7/12/2000 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 6.0 2.0

BRGW-2 N 1/12/2001 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 6.8 2.5

BRGW-2 N 7/16/2001 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 5.1 2.1

BRGW-2 N 1/9/2002 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 4.7 2.3

BRGW-2 N 7/11/2002 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 6.7 1.8

BRGW-2 N 1/16/2003 1155 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 5.4 2.2

BRGW-2 N 7/16/2003 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 3.9 1.5

BRGW-2 N 1/16/2004 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-2 N 7/20/2004 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 4.5 1.5

BRGW-2 N 1/11/2005 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 4.2 1.6

BRGW-2 N 7/21/2005 1518 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.1

BRGW-2 N 1/20/2006 1500 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 3.1 1.0

BRGW-2 N 10/3/2006 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.1 1.0U

Note: 1. Units are ug/l unless otherwise noted; Blank indicates parameter was not analyzed.

2. Sample Codes: BFS - Blind Field Standard; BB - Bottle Blank; TB - Trip Blank; N - Natural;FB - Field Blank; FD - Field Duplicate.

3. Data Qualifiers; U - Undetected; R - Rejected; J - Estimated. X - Contaminated Field Blank; F% - Field Duplicate Relative % Differences are Outside Acceptable Limits; C# - Instrument Calibration Relative Standard Deviations are Outside Acceptable Limits; A - Blind Field Standard Results are Outside Acceptable Limits; S% - Laboratory Surrogate Spike Recoveries are Outside Acceptable Limits; M% - Laboratory Matrix Spike Recoveries Exceed Acceptable Limits; D% - Laboratory Duplicate Samples are Outside Acceptable Limits; L% - Laboratory control sample results are outside acceptable limits; H - Analysis Performed After Established Holding Time; B - Metthod Blank Shows Evidence of Contamination; * - The Material was Detected below the Level of ther Associated Value (PQL) but above the MDL; T - Trip Blank Shows Evidence of Contamination; Q - Due to Dilution, Quantification Down to the Montana Standard Could Not be Achieved.

G:\Environmental\BVSL\bvsl2k.mdb <Table_H_Historical_Organics.rpt>

Sample Code

Sample Date

Sample Time

Dibromo-chloro-methane

1,2-Dibromo- 3-chloro-propane

1,2-Dibromo-ethane

Dibromo-methane

1,2-Dichloro-benzene

1,3-Dichloro-benzene

1,4-Dichloro-benzene

Dichloro-difluoro-methane

1,1-Dichloro-ethane

BRGW-2 N 10/23/2008 1 0.5< 5.0< 0.5< 1.0< 1.0< 1.0< 1.0< 0.5< 1.0<

BRGW-3 N 7/13/1993 1700 1.0U 5.0U 1.0U 2.0U 1.0U 1.0U 1.0U 1.0U 1.0U

BRGW-3 LD 1/25/1994 1615 1.0U 5.0U 1.0U 2.0U 1.0U 1.0U 1.0U 1.0U 1.0U

BRGW-3 N 1/25/1994 1615 1.0U 5.0U 1.0U 2.0U 1.0U 1.0U 1.0U 1.0UJV 1.0U

BRGW-3 N 7/6/1994 1620 1.0U 5.0U 1.0U 1.0U 1.0U 1.0U 1.0U 1.0U 1.0U

BRGW-3 FD 7/6/1994 1620 1.0U 5.0U 1.0U 1.0U 1.0U 1.0U 1.0U 1.0U 1.0U

BRGW-3 N 1/10/1995 1620 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-3 N 7/21/1995 820 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-3 N 1/11/1996 1240 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-3 N 7/17/1996 1200 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0UJF% 1.0U

BRGW-3 N 1/8/1997 1236 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-3 N 7/9/1997 900 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-3 N 1/16/1998 1300 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-3 N 1/13/1999 1457 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-3 N 7/15/1999 1700 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-3 N 1/11/2000 1615 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-3 N 7/14/2000 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-3 N 1/12/2001 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-3 N 7/12/2001 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-3 N 1/9/2002 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-3 N 7/11/2002 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-8 N 2/27/1992 1339 1.0U 1.0U 3.0 1.0U

BRGW-8 N 5/21/1992 1954 1.0U 1.0U 1.0U 1.0U 1.0U 1.0U 1.0U

BRGW-8 N 8/26/1992 1425 1.0U 1.0U 2.0 3.0

BRGW-8 N 12/21/1992 1700 1.0U 1.0U 1.0U 1.0U

BRGW-8 N 7/16/1993 1400 1.0U 5.0U 1.0U 2.0U 1.0U 1.0U 1.0U 1.0U 1.0U

BRGW-8 N 1/26/1994 850 1.0U 5.0U 1.0U 2.0U 1.0U 1.0U 1.0U 2.0JB%V 1.0U

BRGW-8 N 7/7/1994 1325 1.0U 5.0UJB% 1.0U 1.0U 1.0U 1.0U 1.0U 1.0U 1.0U

BRGW-8 LD 7/7/1994 1325 1.0U 5.0U 1.0U 1.0U 1.0U 1.0U 1.0U 1.0U 1.0U

BRGW-8 N 1/12/1995 1055 1.0U 1.0U 1.0U 1.0U 1.0U 1.0U 1.0U 2.0 1.0

BRGW-8 N 7/21/1995 1500 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-8 N 1/12/1996 1620 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 1.0U 1.0 1.0U

BRGW-8 LD 1/12/1996 1620 0.5U 5.0UJB% 1.0U 1.0U 0.5U 1.0U 0.5U 1.0 1.0U

BRGW-8 FD 1/12/1996 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0 1.0U

BRGW-8 N 7/17/1996 1320 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 4.0JF% 2.0

BRGW-8 LD 7/17/1996 1320 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 3.0 1.0

BRGW-8 N 1/8/1997 1600 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-8 N 7/9/1997 810 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-8 N 1/16/1998 1332 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 2.0 1.0U

Note: 1. Units are ug/l unless otherwise noted; Blank indicates parameter was not analyzed.

2. Sample Codes: BFS - Blind Field Standard; BB - Bottle Blank; TB - Trip Blank; N - Natural;FB - Field Blank; FD - Field Duplicate.

3. Data Qualifiers; U - Undetected; R - Rejected; J - Estimated. X - Contaminated Field Blank; F% - Field Duplicate Relative % Differences are Outside Acceptable Limits; C# - Instrument Calibration Relative Standard Deviations are Outside Acceptable Limits; A - Blind Field Standard Results are Outside Acceptable Limits; S% - Laboratory Surrogate Spike Recoveries are Outside Acceptable Limits; M% - Laboratory Matrix Spike Recoveries Exceed Acceptable Limits; D% - Laboratory Duplicate Samples are Outside Acceptable Limits; L% - Laboratory control sample results are outside acceptable limits; H - Analysis Performed After Established Holding Time; B - Metthod Blank Shows Evidence of Contamination; * - The Material was Detected below the Level of ther Associated Value (PQL) but above the MDL; T - Trip Blank Shows Evidence of Contamination; Q - Due to Dilution, Quantification Down to the Montana Standard Could Not be Achieved.

Sample Code

Sample Date

Sample Time

Dibromo-chloro-methane

1,2-Dibromo- 3-chloro-propane

1,2-Dibromo-ethane

Dibromo-methane

1,2-Dichloro-benzene

1,3-Dichloro-benzene

1,4-Dichloro-benzene

Dichloro-difluoro-methane

1,1-Dichloro-ethane

BRGW-8 N 7/7/1998 1319 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-8 N 1/13/1999 1536 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-8 N 7/15/1999 1741 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-8 N 1/12/2000 1215 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-8 D 7/14/2000 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-8 N 7/14/2000 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-8 N 1/11/2001 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-8 N 7/12/2001 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-8 N 1/9/2002 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-8 N 7/11/2002 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.1 1.0U

BRGW-8 N 1/16/2003 1000 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-8 N 7/16/2003 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-8 N 1/14/2004 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-8 N 7/20/2004 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-8 N 1/11/2005 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-8 N 7/22/2005 1115 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-8 N 1/20/2006 1406 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-8 N 9/29/2006 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 0.5U 1.0U

BRGW-8 N 10/22/2008 1 0.5< 5.0< 0.5< 1.0< 1.0< 1.0< 1.0< 0.5< 1.0<

BRGW-9 N 2/27/1992 1715 1.0U 1.0U 2.0 1.0

BRGW-9 N 5/21/1992 1735 1.0U 1.0U 1.0U 1.0U 1.0U 1.0U 1.0U

BRGW-9 N 8/26/1992 1645 1.0U 1.0U 1.0 1.0U

BRGW-9 N 12/22/1992 1340 2.0U 2.0U 3.0 2.0U

BRGW-9 N 7/16/1993 1640 1.0U 5.0U 1.0U 2.0U 1.0U 1.0U 1.0U 4.0JF% 1.0U

BRGW-9 N 1/26/1994 1240 1.0U 5.0U 1.0U 2.0U 1.0U 1.0U 1.0U 2.0JV 1.0U

BRGW-9 N 7/7/1994 1120 1.0U 5.0UJB% 1.0U 1.0U 1.0U 1.0U 1.0U 5.0 1.0

BRGW-9 N 1/12/1995 1155 1.0U 1.0U 1.0U 1.0U 1.0U 1.0U 1.0U 2.0** 1.0U

BRGW-9 N 7/21/1995 1300 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 4.0 2.0

BRGW-9 LD 7/21/1995 1300 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 4.0 2.0

BRGW-9 LD 1/10/1996 1730 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 4.0 2.0

BRGW-9 N 1/10/1996 1730 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 4.0 2.0

BRGW-9 N 7/16/1996 1520 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 5.0JF% 2.0

BRGW-9 N 1/7/1997 1205 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 3.0 1.0

BRGW-9 N 7/8/1997 1440 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 3.0 1.0

BRGW-9 N 1/15/1998 1535 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-9 N 7/8/1998 1315 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 9.0 1.0

BRGW-9 N 1/12/1999 1315 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 2.0 1.0

BRGW-9 N 7/15/1999 1442 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-9 N 1/12/2000 900 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 3.0 1.0U

Note: 1. Units are ug/l unless otherwise noted; Blank indicates parameter was not analyzed.

2. Sample Codes: BFS - Blind Field Standard; BB - Bottle Blank; TB - Trip Blank; N - Natural;FB - Field Blank; FD - Field Duplicate.

3. Data Qualifiers; U - Undetected; R - Rejected; J - Estimated. X - Contaminated Field Blank; F% - Field Duplicate Relative % Differences are Outside Acceptable Limits; C# - Instrument Calibration Relative Standard Deviations are Outside Acceptable Limits; A - Blind Field Standard Results are Outside Acceptable Limits; S% - Laboratory Surrogate Spike Recoveries are Outside Acceptable Limits; M% - Laboratory Matrix Spike Recoveries Exceed Acceptable Limits; D% - Laboratory Duplicate Samples are Outside Acceptable Limits; L% - Laboratory control sample results are outside acceptable limits; H - Analysis Performed After Established Holding Time; B - Metthod Blank Shows Evidence of Contamination; * - The Material was Detected below the Level of ther Associated Value (PQL) but above the MDL; T - Trip Blank Shows Evidence of Contamination; Q - Due to Dilution, Quantification Down to the Montana Standard Could Not be Achieved.

Sample Code

Sample Date

Sample Time

Dibromo-chloro-methane

1,2-Dibromo- 3-chloro-propane

1,2-Dibromo-ethane

Dibromo-methane

1,2-Dichloro-benzene

1,3-Dichloro-benzene

1,4-Dichloro-benzene

Dichloro-difluoro-methane

1,1-Dichloro-ethane

BRGW-9 N 7/13/2000 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-9 N 1/10/2001 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0 1.0U

BRGW-9 N 7/12/2001 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-9 N 1/8/2002 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.1 1.0U

BRGW-9 N 7/9/2002 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.6J 1.0U

BRGW-9 N 1/16/2003 857 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.6 1.0U

BRGW-9 N 7/16/2003 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-9 N 1/14/2004 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.5 1.0U

BRGW-9 N 7/19/2004 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-9 D 1/11/2005 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.6 1.0U

BRGW-9 N 1/11/2005 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.6 1.0U

BRGW-9 N 7/21/2005 920 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-9 N 1/20/2006 1215 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-9 N 9/28/2006 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 0.6 1.0U

BRGW-9 N 10/21/2008 1 0.5< 5.0< 0.5< 1.0< 1.0< 1.0< 1.0< 0.5< 1.0<

BRGW-10 N 2/28/1992 900 1.0U 1.0U 1.0U 1.0U

BRGW-10 N 5/21/1992 1620 1.0U 1.0U 1.0U 1.0U 1.0U 1.0U 1.0U

BRGW-10 N 8/27/1992 1630 1.0U 1.0U 1.0U 1.0U

BRGW-10 N 12/22/1992 1610 1.0U 1.0U 1.0U 1.0U

BRGW-10 N 7/16/1993 1645 1.0U 5.0U 1.0U 2.0U 1.0U 1.0U 1.0U 1.0U 1.0U

BRGW-10 N 1/26/1994 1015 1.0U 5.0U 1.0U 2.0U 1.0U 1.0U 1.0U 1.0UJV 1.0U

BRGW-10 N 7/7/1994 1115 1.0U 5.0UJB% 1.0U 1.0U 1.0U 1.0U 1.0U 1.0U 1.0U

BRGW-10 N 1/11/1995 1450 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-10 N 7/21/1995 1240 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-10 LD 7/21/1995 1240 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-10 N 1/10/1996 1600 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-10 N 7/16/1996 1430 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0UJF% 1.0U

BRGW-10 N 1/7/1997 1130 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-10 N 7/8/1997 1305 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-10 N 1/15/1998 1525 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-10 N 7/8/1998 1210 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-10 N 1/12/1999 1355 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-10 N 7/14/1999 1440 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-10 N 1/4/2000 1630 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-10 N 7/17/2000 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-10 N 1/10/2001 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-10 N 7/12/2001 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-10 N 1/7/2002 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-10 N 7/12/2002 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

Note: 1. Units are ug/l unless otherwise noted; Blank indicates parameter was not analyzed.

2. Sample Codes: BFS - Blind Field Standard; BB - Bottle Blank; TB - Trip Blank; N - Natural;FB - Field Blank; FD - Field Duplicate.

3. Data Qualifiers; U - Undetected; R - Rejected; J - Estimated. X - Contaminated Field Blank; F% - Field Duplicate Relative % Differences are Outside Acceptable Limits; C# - Instrument Calibration Relative Standard Deviations are Outside Acceptable Limits; A - Blind Field Standard Results are Outside Acceptable Limits; S% - Laboratory Surrogate Spike Recoveries are Outside Acceptable Limits; M% - Laboratory Matrix Spike Recoveries Exceed Acceptable Limits; D% - Laboratory Duplicate Samples are Outside Acceptable Limits; L% - Laboratory control sample results are outside acceptable limits; H - Analysis Performed After Established Holding Time; B - Metthod Blank Shows Evidence of Contamination; * - The Material was Detected below the Level of ther Associated Value (PQL) but above the MDL; T - Trip Blank Shows Evidence of Contamination; Q - Due to Dilution, Quantification Down to the Montana Standard Could Not be Achieved.

Sample Code

Sample Date

Sample Time

Dibromo-chloro-methane

1,2-Dibromo- 3-chloro-propane

1,2-Dibromo-ethane

Dibromo-methane

1,2-Dichloro-benzene

1,3-Dichloro-benzene

1,4-Dichloro-benzene

Dichloro-difluoro-methane

1,1-Dichloro-ethane

BRGW-10 N 1/17/2003 923 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-10 N 7/9/2003 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-10 N 1/14/2004 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-10 N 7/22/2004 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-10 N 1/12/2005 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-10 D 1/12/2005 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-10 N 7/22/2005 1038 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-10 N 1/16/2006 1125 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-10 N 9/29/2006 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 0.5U 1.0U

BRGW-10 N 10/22/2008 0 0.5< 5.0< 0.5< 1.0< 1.0< 1.0< 1.0< 0.5< 1.0<

BRGW-30S N 2/27/1992 1535 1.0U 1.0U 1.0U 1.0U

BRGW-30S N 5/21/1992 1130 1.0U 1.0U 1.0U 1.0U 1.0U 1.0U 1.0U

BRGW-30S N 8/25/1992 1530 1.0U 1.0U 1.0U 1.0U

BRGW-30S N 12/17/1992 1415 1.0U 1.0U 1.0U 1.0U

BRGW-31D N 2/27/1992 800 1.0U 1.0U 1.0U 1.0U

BRGW-31D N 5/20/1992 1510 1.0U 1.0U 1.0U 1.0U 1.0U 1.0U 1.0U

BRGW-31D N 8/25/1992 1630 1.0U 1.0U 1.0U 1.0U

BRGW-31D N 12/21/1992 1645 1.0U 1.0U 1.0U 1.0U

BRGW-31D N 1/25/1994 1240 1.0U 5.0U 1.0U 2.0U 1.0U 1.0U 1.0U 1.0UJV 1.0U

BRGW-31D N 7/7/1994 1225 1.0U 5.0UJB% 1.0UJB% 1.0UJB% 1.0U 1.0U 1.0U 1.0U* 1.0U

BRGW-31D N 1/10/1995 1435 0.5UJC# 5.0UJC# 1.0UJC# 1.0UJC# 0.5UJC# 1.0UJC# 0.5UJC# 4.0JC# 1.0UJC#

BRGW-31D N 7/19/1995 1325 0.5U 5.0UJL% 1.0UJL% 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-31D N 1/9/1996 1225 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-31D N 7/16/1996 1130 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0UJF% 1.0U

BRGW-31D LD 7/16/1996 1130 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-31D D 1/7/1997 1320 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-31D N 1/7/1997 1310 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-31D N 7/8/1997 1545 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-31D N 1/14/1998 1450 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-31D FD 7/7/1998 1516 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 2.0 1.0U

BRGW-31D N 7/7/1998 1525 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0 1.0U

BRGW-31D N 1/12/1999 1506 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-31D N 7/15/1999 1153 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-31D N 1/10/2000 1412 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 2.0 1.0U

BRGW-31D N 7/14/2000 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-31D N 11/14/2000 1340 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0 1.0U

BRGW-31D N 12/19/2000 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 2.0 1.0U

BRGW-31D N 1/10/2001 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.1 1.0U

BRGW-31D N 7/11/2001 1.0U 10.0U 2.0U 2.0U 1.0U 2.0U 1.0U 2.0U 2.0U

Note: 1. Units are ug/l unless otherwise noted; Blank indicates parameter was not analyzed.

2. Sample Codes: BFS - Blind Field Standard; BB - Bottle Blank; TB - Trip Blank; N - Natural;FB - Field Blank; FD - Field Duplicate.

3. Data Qualifiers; U - Undetected; R - Rejected; J - Estimated. X - Contaminated Field Blank; F% - Field Duplicate Relative % Differences are Outside Acceptable Limits; C# - Instrument Calibration Relative Standard Deviations are Outside Acceptable Limits; A - Blind Field Standard Results are Outside Acceptable Limits; S% - Laboratory Surrogate Spike Recoveries are Outside Acceptable Limits; M% - Laboratory Matrix Spike Recoveries Exceed Acceptable Limits; D% - Laboratory Duplicate Samples are Outside Acceptable Limits; L% - Laboratory control sample results are outside acceptable limits; H - Analysis Performed After Established Holding Time; B - Metthod Blank Shows Evidence of Contamination; * - The Material was Detected below the Level of ther Associated Value (PQL) but above the MDL; T - Trip Blank Shows Evidence of Contamination; Q - Due to Dilution, Quantification Down to the Montana Standard Could Not be Achieved.

Sample Code

Sample Date

Sample Time

Dibromo-chloro-methane

1,2-Dibromo- 3-chloro-propane

1,2-Dibromo-ethane

Dibromo-methane

1,2-Dichloro-benzene

1,3-Dichloro-benzene

1,4-Dichloro-benzene

Dichloro-difluoro-methane

1,1-Dichloro-ethane

BRGW-31D N 1/8/2002 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.3 1.0U

BRGW-31D N 7/8/2002 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 2.9J 1.0U

BRGW-31D N 1/15/2003 1507 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.7 1.0U

BRGW-31D D 1/15/2003 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.7 1.0U

BRGW-31D N 7/16/2003 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-31D N 1/13/2004 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.4 1.0U

BRGW-31D N 7/20/2004 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.6 1.0U

BRGW-31D N 1/11/2005 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0 1.0U

BRGW-31D N 7/20/2005 1547 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-31D N 1/20/2006 1024 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-31D N 9/28/2006 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 0.7 1.0U

BRGW-31D N 10/22/2008 0 0.5< 5.0< 0.5< 1.0< 1.0< 1.0< 1.0< 0.5< 1.0<

BRGW-32S N 2/28/1992 1000 1.0U 1.0U 1.0U 1.0U

BRGW-32S N 5/20/1992 1500 1.0U 1.0U 1.0U 1.0U 1.0U 1.0U 1.0U

BRGW-32S N 8/26/1992 1545 1.0U 1.0U 1.0U 1.0U

BRGW-32S N 12/17/1992 1520 1.0U 1.0U 1.0U 1.0U

BRGW-32S N 1/25/1994 1300 1.0U 5.0U 1.0U 2.0U 1.0U 1.0U 1.0U 1.0UJV 1.0U

BRGW-32S N 7/29/1994 1215 1.0U 5.0U 1.0U 1.0U 1.0U 1.0U 1.0U 1.0U 1.0U

BRGW-32S N 1/10/1995 1410 0.5UJC# 5.0UJC# 1.0UJC# 1.0UJC# 0.5UJC# 1.0UJC# 0.5UJC# 1.0UJC# 1.0UJC#

BRGW-32S N 7/19/1995 1315 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-32S LD 7/19/1995 1315 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-32S N 1/9/1996 1210 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-32S N 7/16/1996 1125 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0UJF% 1.0U

BRGW-32S N 1/7/1997 1325 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-32S N 7/8/1997 1552 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-32S N 1/14/1998 1445 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-32S N 7/7/1998 1515 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-32S N 1/12/1999 1602 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-32S N 7/14/1999 1510 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-32S N 1/4/2000 1535 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-32S N 7/13/2000 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-32S N 1/10/2001 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-32S N 7/11/2001 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-32S N 1/8/2002 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-32S N 7/15/2002 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-32S N 1/17/2003 1000 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-32S N 7/9/2003 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-32S N 1/13/2004 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-32S N 7/22/2004 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

Note: 1. Units are ug/l unless otherwise noted; Blank indicates parameter was not analyzed.

2. Sample Codes: BFS - Blind Field Standard; BB - Bottle Blank; TB - Trip Blank; N - Natural;FB - Field Blank; FD - Field Duplicate.

3. Data Qualifiers; U - Undetected; R - Rejected; J - Estimated. X - Contaminated Field Blank; F% - Field Duplicate Relative % Differences are Outside Acceptable Limits; C# - Instrument Calibration Relative Standard Deviations are Outside Acceptable Limits; A - Blind Field Standard Results are Outside Acceptable Limits; S% - Laboratory Surrogate Spike Recoveries are Outside Acceptable Limits; M% - Laboratory Matrix Spike Recoveries Exceed Acceptable Limits; D% - Laboratory Duplicate Samples are Outside Acceptable Limits; L% - Laboratory control sample results are outside acceptable limits; H - Analysis Performed After Established Holding Time; B - Metthod Blank Shows Evidence of Contamination; * - The Material was Detected below the Level of ther Associated Value (PQL) but above the MDL; T - Trip Blank Shows Evidence of Contamination; Q - Due to Dilution, Quantification Down to the Montana Standard Could Not be Achieved.

Sample Code

Sample Date

Sample Time

Dibromo-chloro-methane

1,2-Dibromo- 3-chloro-propane

1,2-Dibromo-ethane

Dibromo-methane

1,2-Dichloro-benzene

1,3-Dichloro-benzene

1,4-Dichloro-benzene

Dichloro-difluoro-methane

1,1-Dichloro-ethane

BRGW-32D N 1/11/2005 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-32S N 7/22/2005 1500 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-32S N 1/16/2006 1155 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-32S N 9/29/2006 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 0.5U 1.0U

BRGW-32S N 10/22/2008 0 0.5< 5.0< 0.5< 1.0< 1.0< 1.0< 1.0< 0.5< 1.0<

BRGW-33S N 2/28/1992 1200 1.0U 1.0U 1.0U 1.0U

BRGW-33S N 5/21/1992 1740 1.0U 1.0U 1.0U 1.0U 1.0U 1.0U 1.0U

BRGW-33S N 8/25/1992 1630 1.0U 1.0U 1.0U 1.0U

BRGW-33S N 12/18/1992 1430 1.0U 1.0U 1.0U 1.0U

BRGW-33S N 7/12/1993 1300 1.0U 5.0U 1.0U 2.0U 1.0U 1.0U 1.0U 1.0U 1.0U

BRGW-33S N 1/25/1994 1420 1.0U 5.0U 1.0U 2.0U 1.0U 1.0U 1.0U 1.0UJV 1.0U

BRGW-33S LD 7/6/1994 835 1.0U 5.0U 1.0U 1.0U 1.0U 1.0U 1.0U 1.0U 1.0U

BRGW-33S N 7/6/1994 835 1.0U 5.0U 1.0U 1.0U 1.0U 1.0U 1.0U 1.0U 1.0U

BRGW-33S LD 1/10/1995 850 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-33S N 1/10/1995 850 0.5UJC# 5.0UJC# 1.0UJC# 1.0UJC# 0.5UJC# 1.0UJC# 0.5UJC# 1.0UJC# 1.0UJC#

BRGW-33S N 7/19/1995 1130 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-33S N 1/9/1996 1040 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-33S N 7/16/1996 1510 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0UJF% 1.0U

BRGW-33S N 1/7/1997 855 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-33S N 7/8/1997 1710 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-33S N 1/13/1998 1620 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-33S N 7/9/1998 928 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-33S N 1/12/1999 900 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-33S N 7/14/1999 1448 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-33S N 1/4/2000 1600 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-33S N 7/12/2000 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-33S N 1/10/2001 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-33S N 7/10/2001 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-33S N 1/8/2002 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-33S N 7/15/2002 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-33S N 1/17/2003 801 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-33S N 7/9/2003 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-33S N 1/14/2004 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-33S N 7/21/2004 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-33S N 1/12/2005 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-33S N 7/22/2005 1005 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-33S N 1/16/2006 1040 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-33S N 9/29/2006 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 0.5U 1.0U

BRGW-33S N 10/22/2008 1 0.5< 5.0< 0.5< 1.0< 1.0< 1.0< 1.0< 0.5< 1.0<

Note: 1. Units are ug/l unless otherwise noted; Blank indicates parameter was not analyzed.

2. Sample Codes: BFS - Blind Field Standard; BB - Bottle Blank; TB - Trip Blank; N - Natural;FB - Field Blank; FD - Field Duplicate.

3. Data Qualifiers; U - Undetected; R - Rejected; J - Estimated. X - Contaminated Field Blank; F% - Field Duplicate Relative % Differences are Outside Acceptable Limits; C# - Instrument Calibration Relative Standard Deviations are Outside Acceptable Limits; A - Blind Field Standard Results are Outside Acceptable Limits; S% - Laboratory Surrogate Spike Recoveries are Outside Acceptable Limits; M% - Laboratory Matrix Spike Recoveries Exceed Acceptable Limits; D% - Laboratory Duplicate Samples are Outside Acceptable Limits; L% - Laboratory control sample results are outside acceptable limits; H - Analysis Performed After Established Holding Time; B - Metthod Blank Shows Evidence of Contamination; * - The Material was Detected below the Level of ther Associated Value (PQL) but above the MDL; T - Trip Blank Shows Evidence of Contamination; Q - Due to Dilution, Quantification Down to the Montana Standard Could Not be Achieved.

Sample Code

Sample Date

Sample Time

Dibromo-chloro-methane

1,2-Dibromo- 3-chloro-propane

1,2-Dibromo-ethane

Dibromo-methane

1,2-Dichloro-benzene

1,3-Dichloro-benzene

1,4-Dichloro-benzene

Dichloro-difluoro-methane

1,1-Dichloro-ethane

BRGW-34D N 2/27/1992 1630 1.0U 1.0U 4.0 1.0

BRGW-34D N 5/21/1992 1903 1.0U 1.0U 1.0U 1.0U 1.0U 2.0 1.0U

BRGW-34D N 8/26/1992 1500 1.0U 1.0U 1.0 1.0U

BRGW-34D N 12/18/1992 1350 1.0U 1.0U 1.0U 1.0U

BRGW-34D N 7/13/1993 900 1.0U 5.0U 1.0U 2.0U 1.0U 1.0U 1.0U 1.0U 1.0U

BRGW-34D N 1/27/1994 1145 1.0U 5.0U 1.0U 2.0U 1.0U 1.0U 1.0U 2.0JV 1.0U

BRGW-34D N 7/7/1994 955 1.0U 5.0UJB% 1.0UJB% 1.0UJB% 1.0U 1.0U 1.0U 3.0 1.0U*

BRGW-34D N 1/12/1995 1255 1.0U 1.0U 1.0U 1.0U 1.0U 1.0U 1.0U 1.0U 1.0U

BRGW-34D N 7/19/1995 1615 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 5.0 1.0

BRGW-34D N 1/10/1996 1030 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 5.0 2.0

BRGW-34D N 7/17/1996 830 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 5.0JF% 2.0

BRGW-34D N 1/6/1997 1425 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 2.0 1.0

BRGW-34D N 7/9/1997 1100 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 4.0 2.0

BRGW-34D N 1/15/1998 1036 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0 1.0U

BRGW-34D N 7/8/1998 1425 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 3.0 1.0U

BRGW-34D N 1/11/1999 1426 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 3.0 2.0

BRGW-34D N 7/15/1999 1030 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-34D N 1/10/2000 1320 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 3.0 1.0U

BRGW-34D N 7/12/2000 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 2.0 1.0U

BRGW-34D N 9/15/2000 1125 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-34D N 10/10/2000 920 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 2.0 1.0U

BRGW-34D N 11/14/2000 1130 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0 1.0U

BRGW-34D N 12/18/2000 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 2.0 1.0U

BRGW-34D N 1/10/2001 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.2 1.0U

BRGW-34D N 7/11/2001 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.5 1.0U

BRGW-34D N 1/10/2002 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.1 1.0U

BRGW-34D N 7/8/2002 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 2.7J 1.0U

BRGW-34D N 1/15/2003 1047 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.2 1.0U

BRGW-34D N 7/10/2003 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-34D N 1/13/2004 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-34D N 7/19/2004 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.1 1.0U

BRGW-34D N 1/11/2005 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-34D N 7/21/2005 845 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-34D N 1/19/2006 1351 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-34D N 9/28/2006 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 0.5U 1.0U

BRGW-34D N 10/21/2008 1 0.5< 5.0< 0.5< 1.0< 1.0< 1.0< 1.0< 0.5< 1.0<

BRGW-35S N 2/28/1992 1045 1.0U 1.0U 1.0U 1.0U

BRGW-35S N 5/21/1992 1930 1.0U 1.0U 1.0U 1.0U 1.0U 1.0U 1.0U

BRGW-35S N 8/26/1992 1515 1.0U 1.0U 1.0U 1.0U

Note: 1. Units are ug/l unless otherwise noted; Blank indicates parameter was not analyzed.

2. Sample Codes: BFS - Blind Field Standard; BB - Bottle Blank; TB - Trip Blank; N - Natural;FB - Field Blank; FD - Field Duplicate.

3. Data Qualifiers; U - Undetected; R - Rejected; J - Estimated. X - Contaminated Field Blank; F% - Field Duplicate Relative % Differences are Outside Acceptable Limits; C# - Instrument Calibration Relative Standard Deviations are Outside Acceptable Limits; A - Blind Field Standard Results are Outside Acceptable Limits; S% - Laboratory Surrogate Spike Recoveries are Outside Acceptable Limits; M% - Laboratory Matrix Spike Recoveries Exceed Acceptable Limits; D% - Laboratory Duplicate Samples are Outside Acceptable Limits; L% - Laboratory control sample results are outside acceptable limits; H - Analysis Performed After Established Holding Time; B - Metthod Blank Shows Evidence of Contamination; * - The Material was Detected below the Level of ther Associated Value (PQL) but above the MDL; T - Trip Blank Shows Evidence of Contamination; Q - Due to Dilution, Quantification Down to the Montana Standard Could Not be Achieved.

Sample Code

Sample Date

Sample Time

Dibromo-chloro-methane

1,2-Dibromo- 3-chloro-propane

1,2-Dibromo-ethane

Dibromo-methane

1,2-Dichloro-benzene

1,3-Dichloro-benzene

1,4-Dichloro-benzene

Dichloro-difluoro-methane

1,1-Dichloro-ethane

BRGW-35S N 12/17/1992 1430 1.0U 1.0U 1.0U 1.0U

BRGW-35S N 7/12/1993 1445 1.0U 5.0U 1.0U 2.0U 1.0U 1.0U 1.0U 1.0U 1.0U

BRGW-36D N 2/26/1992 1725 1.0U 1.0U 1.0 1.0U

BRGW-36D N 5/20/1992 1735 2.5U 2.5U 2.5U 2.5U 2.5U 2.5U 2.5U

BRGW-36D N 8/26/1992 1500 1.0U 1.0U 1.0U 1.0U

BRGW-36D N 12/22/1992 1530 10.0U 10.0U 10.0U 10.0U

BRGW-36D N 7/16/1993 1535 1.0U 5.0U 1.0U 2.0U 1.0U 1.0U 1.0U 4.0JF% 1.0U

BRGW-36D N 7/7/1994 1805 1.0U 5.0UJB% 1.0UJB% 1.0UJB% 1.0U 1.0U 1.0U 5.0 1.0U

BRGW-36D N 1/12/1995 1520 50.0U 50.0U 50.0U 50.0U 50.0U 50.0U 50.0U 50.0U 50.0U

BRGW-36D N 7/21/1995 1605 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 2.0 1.0U

BRGW-36D N 1/22/1996 915 0.5U 5.0UJB% 1.0U 1.0U 0.5U 1.0U 0.5U 1.0 1.0U

BRGW-36D N 7/17/1996 1530 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 2.0JF% 1.0U

BRGW-36D N 1/9/1997 1050 2.5U 25.0U 5.0U 5.0U 2.5U 5.0U 2.5U 5.0U 5.0U

BRGW-36D N 7/7/1997 1530 2.5U 25.0U 5.0U 5.0U 2.5U 5.0U 2.5U 5.0U 5.0U

BRGW-36D N 1/15/1998 1705 2.5U 25.0U 5.0U 5.0U 2.5U 5.0U 2.5U 5.0U 5.0U

BRGW-36D N 7/7/1998 950 2.5U 25.0U 5.0U 5.0U 2.5U 5.0U 2.5U 5.0U 5.0U

BRGW-36D N 1/13/1999 1245 2.5U 25.0U 5.0U 5.0U 2.5U 5.0U 2.5U 5.0U 5.0U

BRGW-36D N 7/16/1999 1435 25.0U 250.0U 50.0UQ 50.0U 25.0U 50.0U 25.0U 50.0U 50.0UQ

BRGW-36D N 1/12/2000 1450 12.5U 125.0U 25.0U 25.0U 12.5U 25.0U 12.5U 25.0U 25.0U

BRGW-36D D 1/12/2000 12.5U 125.0U 25.0U 25.0U 12.5U 25.0U 12.5U 25.0U 25.0U

BRGW-36D N 7/17/2000 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-36D N 9/15/2000 1615 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-36D N 10/9/2000 1520 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-36D N 11/14/2000 1545 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-36D N 12/19/2000 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-36D N 1/12/2001 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-36D N 7/16/2001 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-36D N 1/9/2002 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-36D N 7/12/2002 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-36D D 1/16/2003 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-36D N 1/16/2003 1309 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-36D N 7/17/2003 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-36D N 1/16/2004 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-36D N 7/22/2004 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-36D N 1/12/2005 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-36D N 7/21/2005 1615 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-36D N 1/23/2006 1000 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-36D N 10/2/2006 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 0.5U 1.0U

BRGW-36D N 10/22/2008 1 0.5< 5.0< 0.5< 1.0< 1.0< 1.0< 1.0< 0.5< 1.0<

Note: 1. Units are ug/l unless otherwise noted; Blank indicates parameter was not analyzed.

2. Sample Codes: BFS - Blind Field Standard; BB - Bottle Blank; TB - Trip Blank; N - Natural;FB - Field Blank; FD - Field Duplicate.

3. Data Qualifiers; U - Undetected; R - Rejected; J - Estimated. X - Contaminated Field Blank; F% - Field Duplicate Relative % Differences are Outside Acceptable Limits; C# - Instrument Calibration Relative Standard Deviations are Outside Acceptable Limits; A - Blind Field Standard Results are Outside Acceptable Limits; S% - Laboratory Surrogate Spike Recoveries are Outside Acceptable Limits; M% - Laboratory Matrix Spike Recoveries Exceed Acceptable Limits; D% - Laboratory Duplicate Samples are Outside Acceptable Limits; L% - Laboratory control sample results are outside acceptable limits; H - Analysis Performed After Established Holding Time; B - Metthod Blank Shows Evidence of Contamination; * - The Material was Detected below the Level of ther Associated Value (PQL) but above the MDL; T - Trip Blank Shows Evidence of Contamination; Q - Due to Dilution, Quantification Down to the Montana Standard Could Not be Achieved.

Sample Code

Sample Date

Sample Time

Dibromo-chloro-methane

1,2-Dibromo- 3-chloro-propane

1,2-Dibromo-ethane

Dibromo-methane

1,2-Dichloro-benzene

1,3-Dichloro-benzene

1,4-Dichloro-benzene

Dichloro-difluoro-methane

1,1-Dichloro-ethane

BRGW-37S N 2/27/1992 1430 1.0U 1.0U 2.0 1.0

BRGW-37S N 5/20/1992 1745 250.0U 250.0U 250.0U 250.0U 250.0U 250.0U 250.0U

BRGW-37S N 8/27/1992 1700 1.0U 1.0U 1.0 1.0U

BRGW-37S N 12/22/1992 1645 2.0U 2.0U 2.0U 2.0U

BRGW-37S FD 7/14/1993 1345 1.0U 5.0U 1.0U 2.0U 1.0U 1.0U 1.0U 1.0UJF% 1.0UJF%

BRGW-37S N 7/14/1993 1345 1.0U 5.0U 1.0U 2.0U 1.0U 1.0U 1.0U 9.0JF% 4.0JF%

BRGW-37S N 1/27/1994 1035 1.0U 5.0U 1.0U 2.0U 1.0U 1.0U 1.0U 1.0U*JV 1.0U

BRGW-37S LD 7/7/1994 1900 1.0U 5.0U 1.0U* 1.0U 1.0U 1.0U 1.0U 3.0 1.0U

BRGW-37S FD 7/7/1994 1915 1.0U 5.0UJB% 1.0UJB% 1.0UJB% 1.0U 1.0U 1.0U 4.0 1.0U*

BRGW-37S N 7/7/1994 1900 1.0U 5.0UJB% 1.0U 1.0U 1.0U 1.0U 1.0U 3.0 1.0U*

BRGW-37S N 1/12/1995 1505 100.0U 100.0U 100.0U 100.0U 100.0U 100.0U 100.0U 100.0U 100.0U

BRGW-37S N 7/21/1995 1555 0.5U 5.0UJL% 1.0UJL% 1.0U 0.5U 1.0U 0.5U 1.0 1.0U

BRGW-37S N 1/12/1996 1250 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0 1.0U

BRGW-37S N 7/17/1996 1500 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 2.0JF% 1.0U

BRGW-37S N 1/9/1997 1040 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-37S N 7/7/1997 1535 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 2.0 1.0U

BRGW-37S N 1/15/1998 1645 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0 0.5

BRGW-37S N 7/7/1998 940 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 6.0 1.0

BRGW-37S N 1/13/1999 1305 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-37S N 7/16/1999 920 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-37S N 1/6/2000 850 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-37S N 9/15/2000 1045 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-37S N 10/10/2000 1222 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-37S N 11/14/2000 1635 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-37S N 12/19/2000 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-37S N 1/12/2001 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-37S N 7/16/2001 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-37S N 1/7/2002 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-37S D 7/12/2002 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-37S N 7/12/2002 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-37S N 1/17/2003 1132 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-37S N 7/9/2003 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-37S N 1/16/2004 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-37S N 7/22/2004 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-37S N 1/17/2005 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-37S N 7/25/2005 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-37S N 1/16/2006 1320 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-37S N 10/3/2006 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 0.5U 1.0U

BRGW-37S N 10/23/2008 0 0.5< 5.0< 0.5< 1.0< 1.0< 1.0< 1.0< 0.5< 1.0<

Note: 1. Units are ug/l unless otherwise noted; Blank indicates parameter was not analyzed.

2. Sample Codes: BFS - Blind Field Standard; BB - Bottle Blank; TB - Trip Blank; N - Natural;FB - Field Blank; FD - Field Duplicate.

3. Data Qualifiers; U - Undetected; R - Rejected; J - Estimated. X - Contaminated Field Blank; F% - Field Duplicate Relative % Differences are Outside Acceptable Limits; C# - Instrument Calibration Relative Standard Deviations are Outside Acceptable Limits; A - Blind Field Standard Results are Outside Acceptable Limits; S% - Laboratory Surrogate Spike Recoveries are Outside Acceptable Limits; M% - Laboratory Matrix Spike Recoveries Exceed Acceptable Limits; D% - Laboratory Duplicate Samples are Outside Acceptable Limits; L% - Laboratory control sample results are outside acceptable limits; H - Analysis Performed After Established Holding Time; B - Metthod Blank Shows Evidence of Contamination; * - The Material was Detected below the Level of ther Associated Value (PQL) but above the MDL; T - Trip Blank Shows Evidence of Contamination; Q - Due to Dilution, Quantification Down to the Montana Standard Could Not be Achieved.

Sample Code

Sample Date

Sample Time

Dibromo-chloro-methane

1,2-Dibromo- 3-chloro-propane

1,2-Dibromo-ethane

Dibromo-methane

1,2-Dichloro-benzene

1,3-Dichloro-benzene

1,4-Dichloro-benzene

Dichloro-difluoro-methane

1,1-Dichloro-ethane

BRGW-38D N 2/26/1992 1625 1.0U 1.0U 1.0U 1.0U

BRGW-38D N 5/19/1992 1930 1.0U 1.0U 1.0U 1.0U 1.0U 1.0U 1.0U

BRGW-38D N 8/25/1992 1820 1.0U 1.0U 1.0U 1.0U

BRGW-38D N 12/17/1992 1700 1.0U 1.0U 1.0U 1.0U

BRGW-38D N 7/15/1993 1710 1.0U 5.0U 1.0U 2.0U 1.0U 1.0U 1.0U 1.0U 1.0U

BRGW-38D LD 7/15/1993 1710 1.0U 5.0U 1.0U 2.0U 1.0U 1.0U 1.0U 1.0U 1.0U

BRGW-38D N 11/14/2000 1430 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-38D D 11/14/2000 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-38D N 7/16/2001 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-38D N 1/9/2002 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-38D N 7/11/2002 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-38D N 1/16/2003 1051 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-38D N 7/17/2003 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-38D D 7/17/2003 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-38D N 1/15/2004 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-38D D 1/16/2004 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-38D N 7/22/2004 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-38D N 1/12/2005 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-38D N 7/22/2005 1405 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-38D N 1/23/2006 1150 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-38D N 10/2/2006 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 0.5U 1.0U

BRGW-38D N 10/22/2008 1 0.5< 5.0< 0.5< 1.0< 1.0< 1.0< 1.0< 0.5< 1.0<

BRGW-39S N 2/27/1992 915 1.0U 1.0U 17.0 7.0

BRGW-39S N 5/19/1992 1930 1.0U 1.0U 1.0U 1.0U 1.0U 17.0 4.0

BRGW-39S N 8/25/1992 1800 1.0U 1.0U 6.0 4.0

BRGW-39S N 12/22/1992 1300 1.0U 1.0U 11.0 5.0

BRGW-39S N 7/14/1993 1635 1.0U 5.0U 1.0U 2.0U 1.0U 1.0U 1.0U 29.0JF% 4.0JF%

BRGW-39S N 11/14/2000 1515 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 5.0 2.0

BRGW-39S N 1/8/2002 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.8 1.0U 4.6

BRGW-39S N 7/12/2002 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 3.6 2.2

BRGW-39S N 1/17/2003 1059 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.8 1.0U 4.9

BRGW-39S N 7/9/2003 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 2.7

BRGW-39S N 1/16/2004 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.8 1.0 4.2

BRGW-39S N 8/18/2004 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 2.2

BRGW-39S N 1/17/2005 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5 1.0U 2.1

BRGW-39S N 7/22/2005 1405 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 2.4

BRGW-39S N 1/16/2006 1403 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.6 1.0U 2.6

BRGW-39S N 9/29/2006 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 0.5U 1.4

BRGW-39S N 10/22/2008 1 0.5< 5.0< 0.5< 1.0< 1.0< 1.0< 1.0< 0.5< 1.4

Note: 1. Units are ug/l unless otherwise noted; Blank indicates parameter was not analyzed.

2. Sample Codes: BFS - Blind Field Standard; BB - Bottle Blank; TB - Trip Blank; N - Natural;FB - Field Blank; FD - Field Duplicate.

3. Data Qualifiers; U - Undetected; R - Rejected; J - Estimated. X - Contaminated Field Blank; F% - Field Duplicate Relative % Differences are Outside Acceptable Limits; C# - Instrument Calibration Relative Standard Deviations are Outside Acceptable Limits; A - Blind Field Standard Results are Outside Acceptable Limits; S% - Laboratory Surrogate Spike Recoveries are Outside Acceptable Limits; M% - Laboratory Matrix Spike Recoveries Exceed Acceptable Limits; D% - Laboratory Duplicate Samples are Outside Acceptable Limits; L% - Laboratory control sample results are outside acceptable limits; H - Analysis Performed After Established Holding Time; B - Metthod Blank Shows Evidence of Contamination; * - The Material was Detected below the Level of ther Associated Value (PQL) but above the MDL; T - Trip Blank Shows Evidence of Contamination; Q - Due to Dilution, Quantification Down to the Montana Standard Could Not be Achieved.

Sample Code

Sample Date

Sample Time

Dibromo-chloro-methane

1,2-Dibromo- 3-chloro-propane

1,2-Dibromo-ethane

Dibromo-methane

1,2-Dichloro-benzene

1,3-Dichloro-benzene

1,4-Dichloro-benzene

Dichloro-difluoro-methane

1,1-Dichloro-ethane

BRGW-40D N 2/26/1992 1745 1.0U 1.0U 1.0U 1.0U

BRGW-40D N 5/20/1992 1615 1.0U 1.0U 1.0U 1.0U 1.0U 1.0U 1.0U

BRGW-40D N 8/27/1992 1845 1.0U 1.0U 1.0U 1.0U

BRGW-40D N 12/18/1992 1235 1.0U 1.0U 1.0U 1.0U

BRGW-40D N 7/16/1993 1145 1.0U 5.0U 1.0U 2.0U 1.0U 1.0U 1.0U 1.0U 1.0U

BRGW-40D LS 7/16/1993 1145 114.0% 147.0% 121.0% 114.0% 109.0% 103.0% 106.0% 99.0% 101.0%

BRGW-40D D 1/9/1997 1210 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-40D N 1/9/1997 1205 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-41S N 2/27/1992 1110 1.0U 1.0U 6.0 5.0

BRGW-41S N 5/20/1992 1625 1.0U 1.0U 1.0U 1.0U 1.0U 1.0 1.0U

BRGW-41S N 8/27/1992 1930 1.0U 1.0U 1.0U 1.0U

BRGW-41S N 12/21/1992 1415 5.0U 5.0U 5.0U 5.0U

BRGW-41S N 7/14/1993 1730 1.0U 5.0U 1.0U 2.0U 1.0U 1.0U 1.0U 3.0JF% 1.0U

BRGW-41S N 1/9/1997 1155 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-41S N 1/14/1999 1020 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 4.0 1.0

BRGW-41S N 7/14/2000 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 2.0 1.0

BRGW-41S N 1/15/2001 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.1 1.3

BRGW-41S N 1/8/2002 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 2.2 1.8

BRGW-41S D 1/8/2002 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.8 1.4

BRGW-41S N 7/12/2002 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 2.3 1.7

BRGW-41S N 1/17/2003 1247 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.8 1.7

BRGW-41S N 7/9/2003 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.4 1.8

BRGW-41S N 1/15/2004 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 2.0 2.2

BRGW-41S N 8/18/2004 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.4 1.0

BRGW-41S N 1/17/2005 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 2.4 1.0U

BRGW-41S N 1/16/2006 0.0 0.0 0.0

BRGW-42D N 2/26/1992 1220 1.0U 1.0U 1.0U 1.0U

BRGW-42D N 5/19/1992 1800 1.0U 1.0U 1.0U 1.0U 1.0U 1.0U 0.5U

BRGW-42D N 8/25/1992 1745 1.0U 1.0U 1.0U 1.0U

BRGW-42D N 12/17/1992 1630 1.0U 1.0U 1.0U 1.0U

BRGW-43S N 2/28/1992 815 1.0U 1.0U 1.0U 1.0U

BRGW-43S N 5/19/1992 1750 1.0U 1.0U 1.0U 1.0U 1.0U 1.0U 1.0U

BRGW-43S N 8/25/1992 1700 1.0U 1.0U 1.0U 1.0U

BRGW-43S N 12/17/1992 1550 1.0U 1.0U 1.0U 1.0U

BRGW-44S N 7/14/1993 1000 1.0U 5.0U 1.0U 2.0U 1.0U 1.0U 1.0U 4.0JF% 1.0U

BRGW-45S N 7/14/1993 1105 1.0U 5.0U 1.0U 2.0U 1.0U 1.0U 1.0U 1.0U 1.0U

BRGW-46S N 7/14/1993 1220 1.0U 5.0U 1.0U 2.0U 1.0U 1.0U 1.0U 1.0U 1.0U

BRGW-47S N 7/14/1993 1535 1.0U 5.0U 1.0U 2.0U 1.0U 1.0U 2.0JX 1.0U 1.0U

BRGW-47S LS 7/14/1993 1535 105.0% 136.0% 114.0% 100.0% 102.0% 97.0% 100.0% 106.0% 101.0%

Note: 1. Units are ug/l unless otherwise noted; Blank indicates parameter was not analyzed.

2. Sample Codes: BFS - Blind Field Standard; BB - Bottle Blank; TB - Trip Blank; N - Natural;FB - Field Blank; FD - Field Duplicate.

3. Data Qualifiers; U - Undetected; R - Rejected; J - Estimated. X - Contaminated Field Blank; F% - Field Duplicate Relative % Differences are Outside Acceptable Limits; C# - Instrument Calibration Relative Standard Deviations are Outside Acceptable Limits; A - Blind Field Standard Results are Outside Acceptable Limits; S% - Laboratory Surrogate Spike Recoveries are Outside Acceptable Limits; M% - Laboratory Matrix Spike Recoveries Exceed Acceptable Limits; D% - Laboratory Duplicate Samples are Outside Acceptable Limits; L% - Laboratory control sample results are outside acceptable limits; H - Analysis Performed After Established Holding Time; B - Metthod Blank Shows Evidence of Contamination; * - The Material was Detected below the Level of ther Associated Value (PQL) but above the MDL; T - Trip Blank Shows Evidence of Contamination; Q - Due to Dilution, Quantification Down to the Montana Standard Could Not be Achieved.

Sample Code

Sample Date

Sample Time

Dibromo-chloro-methane

1,2-Dibromo- 3-chloro-propane

1,2-Dibromo-ethane

Dibromo-methane

1,2-Dichloro-benzene

1,3-Dichloro-benzene

1,4-Dichloro-benzene

Dichloro-difluoro-methane

1,1-Dichloro-ethane

BRGW-48S N 7/14/1993 1200 1.0U 5.0U 1.0U 2.0U 1.0U 1.0U 2.0JX 1.0U 1.0U

BRGW-48S N 7/17/1996 1415 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 4.0JF% 5.0

BRGW-48S N 1/9/1997 1330 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0 1.0

BRGW-48S N 1/16/1998 1508 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0 2.0

BRGW-48S N 7/6/1998 1555 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0

BRGW-48S N 1/14/1999 939 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-48S N 7/16/1999 1240 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 2.0

BRGW-48S N 1/12/2000 1412 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0

BRGW-48S N 7/17/2000 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0

BRGW-48S N 1/15/2001 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-48S N 7/16/2001 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-48S N 1/9/2002 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-48S N 7/12/2002 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-48S N 1/16/2003 1610 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-48S N 7/17/2003 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0

BRGW-48S N 1/16/2004 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-48S N 7/22/2004 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-48S N 1/12/2005 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-48S N 7/22/2005 1205 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-48S N 1/23/2006 1305 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-48S N 10/2/2006 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 0.5U 1.0U

BRGW-48S N 10/23/2008 0 0.5< 5.0< 0.5< 1.0< 1.0< 1.0< 1.0< 0.5< 1.0<

BRGW-49S N 7/14/1993 1425 1.0U 5.0U 1.0U 2.0U 1.0U 1.0U 1.0U 1.0U 1.0U

BRGW-49S N 1/27/1994 1015 1.0U 5.0U 1.0U 2.0U 1.0U 1.0U 1.0U 1.0U*JV 1.0U

BRGW-49S N 7/7/1994 1455 1.0U 5.0UJB% 1.0UJB% 1.0UJB% 1.0U 1.0U 1.0U 2.0 1.0U

BRGW-49S N 1/11/1995 1050 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-49S N 7/21/1995 1355 0.5U 5.0UJL% 1.0UJL% 1.0U 0.5U 1.0U 0.5U 1.0 1.0U

BRGW-49S N 1/11/1996 1510 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-49S N 7/16/1996 1315 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0UJF% 1.0U

BRGW-49S N 1/9/1997 905 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-49S N 7/8/1997 1055 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-49S N 1/15/1998 1140 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

BRGW-49S N 7/7/1998 1110 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 2.0 1.0U

BRGW-50D N 7/16/1993 1025 1.0U 5.0U 1.0U 2.0U 1.0U 1.0U 1.0U 1.0U 1.0U

BRGW-50D N 1/26/1994 1455 1.0U 5.0U 1.0U 2.0U 1.0U 1.0U 1.0U 1.0UJB%V 1.0U

BRGW-50D N 7/7/1994 1525 1.0U 5.0UJB% 1.0U 1.0U 1.0U 1.0U 1.0U 1.0U 1.0U

BRGW-50D N 1/12/1995 950 1.0U 1.0U 1.0U 1.0U 1.0U 1.0U 1.0U 1.0U 1.0U

BRGW-50D FD 1/12/1995 1000 1.0U 1.0U 1.0U 1.0U 1.0U 1.0U 1.0U 1.0U 1.0U

BRGW-50D N 7/21/1995 1405 0.5U 5.0U 1.0U 1.0U 0.5U 1.0U 0.5U 1.0U 1.0U

Note: 1. Units are ug/l unless otherwise noted; Blank indicates parameter was not analyzed.

2. Sample Codes: BFS - Blind Field Standard; BB - Bottle Blank; TB - Trip Blank; N - Natural;FB - Field Blank; FD - Field Duplicate.

3. Data Qualifiers; U - Undetected; R - Rejected;…

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