New Hampshire Code of Administrative Rules
Env - Department of Environmental Services
Subtitle Env-Ws - Division of Water
Chapter Env-Ws 300 - NEW HAMPSHIRE DRINKING WATER RULES
Part Env-Ws 347 - BEST AVAILABLE TREATMENT - ORGANICS
Section Env-Ws 347.04 - Variances and Exemptions from the Maximum Contaminant Levels for Synthetic Organic Chemicals

Universal Citation: NH Admin Rules Env-Ws 347.04

Current through Register No. 13, March 27, 2025

(a) The required technologies listed in paragraphs Env-Ws 347.03 shall be the best technology, treatment techniques, or other means available for achieving compliance with the maximum contaminant levels for organic chemicals specified in Env-Ws 315.02.

(b) The department shall require community water systems and non-transient, non-community water systems to install and use any treatment method identified in Env-Ws 347.03 as a condition for granting a variance except as provided in (c), below. If after the system installs the treatment method the system still cannot meet the MCL, the system shall be eligible for a variance.

(c) If a system can demonstrate through comprehensive engineering assessments, which may include pilot plant studies, that the treatment methods identified in Env-Ws 347.03 would only achieve a de minimis reduction in contaminants, the department shall issue a schedule of compliance that requires the system being granted the variance to examine other treatment methods as a condition of obtaining the variance.

(d) If the department determines that a treatment method identified in (c), above, is technically feasible, the department shall require the system to install and use that treatment method in connection with a compliance schedule issued. The department's determination shall be based upon studies by the system and other relevant information.

(e) The department shall require a public water system to use bottled water or point-of-use devices or other means as a condition for granting a variance from the requirements of Env-Ws 315.02 to avoid an unreasonable risk to health.

(f) Public water systems that use bottled water as a condition for receiving a variance from the requirements of Env-Ws 315.02 shall meet the requirements of Env-Ws 308.11 concerning bottled water.

(See Revision Note at chapter heading Env-Ws 300) #6521, eff 6-4-97; ss by #8360, INTERIM, eff 6-4-05, EXPIRES: 12 -1-05 ; ss by #8497, eff 11-30-05 (formerly Env-Ws 347.41 )

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