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Items for TNRCC Review and Approval
Attachment 5 - Proposed Groundwater Target Analytes for Sampling and Analysis
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Analytical Group |
Analytical Method Number |
Parameters for Analysis |
CSSA Waste History |
Analytes Detected During Groundwater Monitoring |
AFCEE RLs (ug/L)1 |
Highest Detected Values (ug/L) |
MCLs (ug/L)2 |
RRS2 Level/GW-Res (ug/L)3 |
RRS2 Level/GW-Ind (ug/L)3 |
Background Levels (ug/L)4 |
Recommended Analytes for Monitoring Under Consent Order |
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Organics |
SW-846 |
1,1,1,2-Tetrachloroethane |
U.S. Installation for |
1,1-Dichloroethene |
1.2 |
<0.23 |
7 |
7 |
7 |
TBD |
1,1-Dichloroethene |
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8260B |
1,1,1-Trichloroethane |
ordnance storage, |
Bromodichloromethane |
0.8 |
4.7 |
1005 |
100 |
100 |
TBD |
Bromodichloromethane |
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1,1,2,2-Tetrachloroethane |
maintenance, and |
Chloroform |
0.3 |
35.4 |
1005 |
100 |
100 |
TBD |
Chloroform |
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1,1,2-Trichloroethane |
testing. |
cis-1,2-Dichloroethene |
1.2 |
280 |
70 |
70 |
70 |
TBD |
cis-1,2-Dichloroethene |
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1,1-Dichloroethane |
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Dibromochloromethane |
0.5 |
4.5 |
1005 |
100 |
100 |
TBD |
Dibromochloromethane |
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1,1-Dichloroethene |
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Methylene chloride |
0.3 |
8 |
5 |
5 |
5 |
TBD |
Methylene chloride |
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1,1-Dichloropropene |
The O-1 site is a |
trans-1,2-Dichloroethene |
0.6 |
84 |
100 |
100 |
100 |
TBD |
trans-1,2-Dichloroethene |
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1,2,3-Trichlorobenzene |
closed evaporation |
Tetrachloroethene |
1.4 |
228 |
5 |
5 |
5 |
TBD |
Tetrachloroethene |
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1,2,3-Trichloropropane |
pond for solvents |
Trichloroethene |
1 |
509 |
5 |
5 |
5 |
TBD |
Trichloroethene |
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1,2,4-Trichlorobenzene |
used in bluing |
Vinyl chloride |
1.1 |
3 |
2 |
2 |
2 |
TBD |
Vinyl chloride |
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1,2,4-Trimethylbenzene |
operations. Bulldozed |
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1,2-Dichloroethane |
in 1985, the site is a |
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1,2-Dichlorobenzene |
suspected source area |
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For future VOC analysis, recommended to retain all analytes previously detected during 1992 - 1998 monitoring events.
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1,2-Dibromo-3-chloropropane |
of chlorinated solvents |
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1,2-Dichloropropane |
in groundwater. |
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1,2-Dibromomethane |
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1,3,5-Trimethylbenzene |
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1,3-Dichlorobenzene |
The B-3 site is a |
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1,3-Dichloropropane |
closed landfill. |
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1,4-Dichlorobenzene |
Analytical tests have |
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1-Chlorohexane |
shown high levels of |
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2,2-Dichlorohexane |
chlorinated solvents, |
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2-Chlorotoluene |
making the B-3 site a |
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4-Chlorotoluene |
suspected source area |
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Benzene |
of chlorinated solvents |
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Bromobenzene |
in groundwater. |
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Bromochloromethane |
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Bromodichloromethane |
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Bromoform |
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Bromomethane |
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Carbon tetrachloride |
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Chlorobenzene |
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Chloroethane |
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Chloroform |
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Chloromethane |
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cis-1,2-Dichloroethene |
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cis-1,3-Dichloropropene |
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Dibromochloromethane |
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Dibromomethane |
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Dichlorodifluoromethane |
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Ethylbenzene |
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Hexachlorobutadiene |
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Isopropylbenzene |
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m,p-Xylene |
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Methylene chloride |
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n-Butylbenzene |
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n-Propylbenzene |
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Naphthalene |
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o-Xylene |
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p-Isopropyltoluene |
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sec-Butylbenzene |
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Styrene |
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Trichloroethene |
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tert-Butylbenzene |
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Tetrachloroethene |
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Toluene |
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trans-1,2-Dichloroethene |
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trans-1,3-Dichloropropene |
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Trichlororfluoromethane |
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Vinyl Chloride |
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Metals |
6010B |
Barium |
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Barium |
5 |
40 |
2000 |
2000 |
2000 |
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For future metals analysis, recommend background gw metals evaluation prior to proposing list of target analytes.
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6010B |
Chromium |
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Chromium |
10 |
2.27 |
100 |
100 |
100 |
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6010B |
Copper |
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Copper |
10 |
70 |
1300 |
1300 |
1300 |
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6010B |
Nickel |
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Nickel |
NA |
43.4 |
100 |
730 |
2000 |
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6010B |
Zinc |
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Zinc |
10 |
4190 |
--- |
11000 |
31000 |
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7060A |
Arsenic |
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Arsenic |
30 |
20 |
50 |
50 |
50 |
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7131A |
Cadmium |
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Cadmium |
1 |
5 |
5 |
5 |
5 |
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7421 |
Lead |
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Lead |
5 |
60 |
15 |
15 |
15 |
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7470A |
Mercury |
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Mercury |
1 |
0.38 |
2 |
2 |
2 |
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Bolded and shaded areas indicate detected values that exceed MCLs and RRS2 levels. Bolded value for trans-1,2-Dichloroethene (84 ug/L) indicates that this value will exceed combined allowable MCL for THMs. 1 Reporting Limit (RL) established by the Air Force Center for Environmental Excellence (AFCEE) in the Quality Assurance Project Plan (QAPP), Version 3.0, March 1998. 2 Maximum Contaminant Level (MCL) - maximum permissable level of a contaminant in water which is delivered to any user of a public water system. Values taken from United States Environmental Protection Agency, Office of Water, Drinking Water Regulations and Health Advisories, 4 February 1999. 3 GW-Res - Groundwater Medium-Specific Concentrations (MSCs) for Residential use; GW-Ind - Groundwater MSC for Industrial use. Values taken from the Texas Natural Resource Conservation Commission (TNRCC), Updated Examples of Standard No. 2, Appendix II MSCs, updated 18 September 1998. 4 TBD = To be determined. 5 MCL for all THMs combined cannot exceed 80 ug/L (proposed). |
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