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 380 - FILTRATION, DISINFECTION, TREATMENT PLANT AND WASTE RECYCLING
Section Env-Ws 380.29 - Recycle Provisions and Recordkeeping Requirements
Current through Register No. 13, March 27, 2025
(a) Each water system owner that employs conventional filtration or direct filtration treatment and that recycles spent filter backwash water, thickener supernatant, or liquids from dewatering processes shall meet the requirements in (b) through (f) of this section.
(b) Pursuant to 40 CFR 141. 141.76(b), a system owner shall notify the department in writing by December 8, 2003, if the system recycles spent filter backwash water, thickener supernatant, or liquids from dewatering processes.
(c) The notification shall include, at a minimum, the following information:
(d) Pursuant to 40 CFR141.76(c), the owner of any system that recycles spent filter backwash water, thickener supernatant, or liquids from dewatering processes shall return these flows through the processes of a system's existing conventional or direct filtration system or at an alternate location approved by the department by June 8, 2004.
(e) If capital improvements are required to modify the recycle location to meet the requirements in (d) above, all capital improvements for the system shall be completed no later than June 8, 2006.
(f) Pursuant to 40 CFR 141.76(d), the system owner shall collect and retain on file the following information for review and evaluation by the department beginning June 8, 2004:
#7754, eff 8-21-02; ss by #8352, eff 5-14-05