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


Current through Register No. 13, March 27, 2025

Statutory Authority: RSA 485 and 332-E:3

REVISION NOTE :

Document #4850, eff 6-25-90, made extensive changes to the wording, format and structure of Chapter Env-Ws 300 and rules in Chapter Ws 300, now redesignated as rules in Chatper Env-Ws 300. Document #4850 superseded all prior filings for the sections in the fromer Chapter Ws 300 and Chapter Env-Ws 300, except for Parts Env-Ws 378 through Env-Ws 399 which were not included in Document #4850. The prior filings for former Ws 300 and Env-Ws 300 included the following documents:

#1918, eff 1-13-82 #2973, eff 1-28-85
#2071, eff 7-1-82 #3057, eff 7-16-85
#2244, eff 12-31-82 #4040, eff 4-16-86
#2317, eff 3-10-83 #4053, eff 5-14-86
#2318, eff 3-10-83 #4126, eff 8-29-86
#2471, eff 9-7-83 #4149, eff 10-15-86
#2525, eff 10-11-83 #4273, eff 6-29-87
#2610, eff 2-1-84 #4419, eff 5-24-88
#2842, eff 9-5-84 #4483, eff 9-2-88

REVISION NOTE :

Document #6521, eff 6-4-97, made various readoptions to the wording, format and structure of Chapter Env-Ws 300. Document #6521 superseded all prior filings for the sections in this chapter. The prior filings since Document #4850 for former Env-Ws 300 included the following documents:

#4875, eff 7-23-90 #5541, eff 12-24-92
#4984, eff 11-20-90 #5636, eff 6-14-93
#5098, eff 3-18-91 #5872, eff 7-19-94
#5287, eff 11-27-91 #5873, eff 7-26-94
#5422, eff 6-22-92

REVISION NOTE :

Document #7735, effective 8-2-02, made several changes to Chapter Env-Ws 300, including adoption of a new Part Env-Ws 382 relative to Disinfectant/Disinfection Byproducts. Document #7735 moved and renumbered, but did not readopt, the former Env-Ws 382 as Env-Ws 393. The effective dates of Part Env-Ws 393 therefore remain unchanged by Document #7735.

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