Statutes, codes, and regulations
Wisconsin Administrative Code
Agency - Department of Natural ResourcesEnvironmental Protection - Water SupplyChapter NR 809 - Safe Drinking Water
Subchapter I - Maximum Contaminant Levels, Monitoring and Analytical Requirements for Primary Drinking Water Contaminants
Section NR 809.243 - Analytical requirements for volatile organic contaminants

Wis. Admin. Code Department of Natural Resources NR 809.243

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Current through September 30, 2024
Section NR 809.243 - Analytical requirements for volatile organic contaminants
(1) DETECTION LIMITS. For the purposes of this section, detection is defined as >0.0005 mg/l, except for vinyl chloride for which detection is defined as >0.0002 mg/L.
(2) ANALYTICAL METHODS. Analysis for the volatile organic contaminants listed in s. NR 809.24 shall be conducted using the methods prescribed in Table E.

Table E

SDWA Approved Methodology for Volatile Organic Contaminants

Contaminant Regulated Parameters:

EPA Methods 1,2

Benzene

502.2, 524.2, 524.3

Carbon tetrachloride

502.2, 524.2, 551.1,524.3

Chlorobenzene

502.2, 524.2, 524.3

1,2-Dichlorobenzene

502.2, 524.2, 524.3

1,4-Dichlorobenzene

502.2, 524.2, 524.3

1,2-Dichloroethane

502.2, 524.2, 524.3

cis-Dichloroethylene

502.2, 524.2, 524.3

trans-Dichloroethylene

502.2, 524.2, 524.3

Dichloromethane

502.2, 524.2, 524.3

1,2-Dichloropropane

502.2, 524.2, 524.3

Ethylbenzene

502.2, 524.2, 524.3

Styrene

502.2, 524.2, 524.3

Tetrachloroethylene

502.2, 524.2, 551.1, 524.3

1,1,1-Trichloroethane

502.2, 524.2, 551.1, 524.3

Trichloroethylene

502.2, 524.2, 551.1, 524.3

Toluene

502.2, 524.2, 524.3

1,2,4-Trichlorobenzene

502.2, 524.2, 524.3

1,1-Dichloroethylene

502.2, 524.2, 524.3

1,1,2-Trichloroethane

502.2, 524.2, 551.1, 524.3

Vinyl chloride

502.2, 524.2, 524.3

Xylenes (total)

502.2, 524.2, 524.3

1 Procedures for Methods 502.2, 524.2, and 551.1 are in Methods for the Determination of Organic Compounds in Drinking Water Supplement III, EPA/600/R-95-131, August 1995. These documents are available from the National Technical Information Service (NTIS), U.S. Department of Commerce, 5285 Port Royal Road, Springfield, Virginia 22161. The toll free number is 1-800-553-6847.

2 EPA Method 524.3, Version 1.0. "Measurement of Purgeable Organic Compounds in Water by Capillary Column Gas Chromatography/Mass Spectrometry," June 2009. EPA 815B09009. Available at http://epa.gov/safewater/methods/analyticalmethods_ogwdw.html.

(3) SAMPLE COLLECTION. Samples shall be collected using containers, preservatives and holding times specified in s. NR 809.203(4) Table D. In all cases, samples should be analyzed as soon after collection as possible.
(4) LABORATORY CERTIFICATION. Analyses under this section shall only be conducted by laboratories that have received certification under ch. NR 149 or have been approved by EPA.
(5) LABORATORY EVALUATION. Each certified laboratory shall determine the method detection limit (MDL) at which it is capable of detecting VOCs as defined in federal law under 40 CFR, Part 136, Appendix B. The maximum acceptable MDL is 0.0005 mg/L for all VOCs except vinyl chloride, which is 0.0002 mg/L.

Wis. Admin. Code Department of Natural Resources NR 809.243

CR 09-073: cr. Register November 2010 No. 659, eff. 12-1-10.
Amended by, CR 15-049: am. (1), (2) Table E footnotes, (5) Register March 2016 No. 723, eff.4/1/2016