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Interim Ground Water Quality Criteria Table

Interim Ground Water Quality Criteria*
(in parts per billion, ppb)

Constituent
CASRN
Interim GWQ Criterion
acetonitrile
75-05-8
100*
9
100*
2/11/08
caprolactam
105-60-2
3500
5000
5000
2/11/08
DEP, 2/08
chloroethane
75-00-3
5*
0.5
5*
2/11/08
cobalt
7440-48-4
100
0.5
100
2/11/08
DEP, 2/08
dichlormid
37764-25-3
600
50
600
2/11/08
4,6-dinitro-o-cresol
534-52-1
0.7
1
1
2/11/08
1,4-dioxane
123-91-1
3
10
10
2/11/08
diphenyl ether
101-84-8
100
10
100
2/11/08
DEP, 2/08
2-ethyl-1-hexanol
104-76-7
200
0.5
200
2/11/08
n-heptane
142-82-5
100*
0.5
100*
2/11/08
DEP, 2/08
hexahydro-1,3,5-trinitro-1,3,5-triazine (RDX)
121-82-4
0.3
0.5
0.5
2/11/08
2-hexanone
591-78-6
300
1
300
2/11/08
metolachlor
51218-45-2
100
0.5
100
2/11/08
2-(2-methyl-4-chlorophenoxy) propionic acid (MCCP)
93-65-2
7
0.5
7
2/11/08
2-methylnapthalene
91-57-6
30
10
30
2/11/08
n-propanol
71-23-8
100*
40
100*
2/11/08
perchlorate
14797-73-0
5
2.7
5
3/26/07
salicylic acid
69-72-7
100
100
100
2/11/08
2,4,6-trinitrolouene (TNT)
118-96-7
1
0.3
1
2/11/08

Practical Quantitation Level (PQL) means the lowest concentration of a constituent that can be reliably achieved among laboratories within specified limits of precision and accuracy during routine laboratory operating conditions.

The higher of the PQLs and interim criteria is the numerical standard to be applied for each constituent in Class II-A aquifers (N.J.A.C. 7:9C-1.9(c)).

The effective date is the date that the interim ground water quality criterion becomes effective, usually the date the interim criterion is posted on the Department's Web site.

Support document: this column lists the author and date, along with a hyperlink to, the document or documents that serve as and explain the basis for the derivation of the interim specific ground water quality criterion and corresponding PQL.

*Note: All interim criteria identified on this table are interim specific ground water quality criteria unless noted with an asterisk (*), which indicates that they are interim generic ground water quality criteria.

 

For more information about the GWQS Program, please contact the Bureau of Water Quality Standards and Assessment, at (609) 777-1753.

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Copyright © State of New Jersey, 1996-2008
Department of Environmental Protection
P. O. Box 402
Trenton, NJ 08625-0402

Last Modified: June 26, 2008

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