Section Env-Dw 717.07 - New Sources of Groundwater(a) Subject to (b), below, the O/O of a groundwater system who places a new groundwater source in service after November 30, 2009, shall conduct 6 consecutive months of groundwater source sampling for E. coli, with at least one sample being taken prior to providing water to the public, to demonstrate that 4-log treatment is not required.(b) In lieu of (a), above, the O/O shall: (1) Demonstrate, during the new source approval process specified in Env-Dw 302 or Env-Dw 305, as applicable, and in accordance with Env-Dw 717.13(a) and (b), that the proposed disinfection option meets the requirements for 4-log treatment; and(2) Meet the compliance monitoring requirements of Env-Dw 717.13 through Env-Dw 717.17, as applicable, within 30 days of placing the source in service.(c) The O/O of a new groundwater source not providing 4-log treatment who is notified that any of the source water samples collected pursuant to (a), above, are E. coli positive shall: (1) Undertake corrective action as specified in Env-Dw 717.21; and(2) Institute a boil order notice in accordance with Env-Dw 709.19 and provide notice in accordance with the public notice requirements in Env-Dw 709.23.(d) The O/O of a new groundwater source not providing 4-log treatment who is notified that the results from samples collected in accordance to (a), above, demonstrate that the source is free from fecal contamination shall continue to be subject to the triggered monitoring requirements described in Env-Dw 717.11.N.H. Code Admin. R. Env-Dw 717.07
Amended by Volume XXXVIII Number 23, Filed June 7, 2018, Proposed by #12525, Effective 6/1/2018, Expires 6/1/2028.