Section Env-Dw 305.33 - Hydrofracturing or Deepening an Existing Small Bedrock Production Well(a) Subject to (b) and (c), below, an applicant proposing to hydrofracture or deepen an existing bedrock well to increase well capacity shall comply with this section, provided the resulting well capacity will remain below 57,600 gallons in a 24-hour period.(b) An applicant proposing to hydrofracture or deepen a bedrock well to regain lost well capacity to expand the water system or increase the yield beyond that previously established pursuant to Env-Dw 405 shall comply with all requirements for a new well as specified in Env-Dw 305.05(a), provided the resulting well capacity will remain below 57,600 gallons in a 24-hour period.(c) An applicant proposing to hydrofracture or deepen a bedrock well shall comply with Env-Dw 302 if the resulting well would produce 57,600 or more gallons in a 24-hour period.(d) Prior to hydrofracturing or deepening a bedrock well, the supplier of water shall submit the following information to the department: (1) The name, mailing address, email address, and daytime phone number of the supplier of water and the supplier's authorized representative;(2) The name and PWS identifier of the CWS;(3) The source capacity requirements for the CWS established during design approval in accordance with Env-Dw 405;(4) A description of the well in relation to the 100-year flood plain and any measures, if applicable, to be taken to elevate the permanent well casing;(5) Whether the proposed well capacity will require a larger sanitary protective area under Env-Dw 305.10 and, if so, the measures proposed to be taken to achieve compliance with Env-Dw 305.10; and(6) A proposal for determining the sustainable yield of and water quality from the well after hydrofracturing or deepening.(e) The department shall approve or deny a request to hydrofracture or deepen a small bedrock production well within 30 days of receiving a complete request.(f) The department shall approve a request to hydrofracture or deepen an existing small bedrock production well only if: (1) The information submitted is complete and correct; and(2) The applicant demonstrates all of the following:a. The project is necessary to meet approved source capacity and will not be used to expand the water system or for water use beyond the approved source capacity;b. The well will not be subject to flooding at the 100-year recurrence interval; andc. There is no contamination in the vicinity of the well that is likely to reach the well as a result of the hydrofracturing or deepening to recover lost yield from withdrawal.(g) If the department denies a request to hydrofracture or deepen an existing small bedrock production well because the applicant fails to demonstrate conditions listed in (f), above, the applicant shall meet all requirements for new small production wells described in Env-Dw 305.05(a) prior to hydrofracturing or deepening the well.(h) Upon hydrofracturing or deepening a small bedrock production well in accordance with the requirements of this section, the applicant shall: (1) Purge the well for a period of at least 6 hours at maximum capacity of the well, but not in excess of the capacity previously established or permitted for the well;(2) Record the water level and pumping rate at least once every hour during the purge test completed in accordance with (1), above;(3) After purging the well in accordance with (1), above, collect a water quality sample in accordance with Env-Dw 305.15(b)(3) through (5); and(4) Submit the water level, pumping rate and water quality laboratory results to the department within 60 days of hydrofracturing or deepening the well to demonstrate that acceptable water quality can be delivered by the well, provided that for parameters that exceed primary or secondary maximum contaminant levels under Env-Dw 702 through 706, treatment or other management techniques may be used if approved by the department in accordance with Env-Dw 405.N.H. Admin. Code § Env-Dw 305.33
Adopted by, Volume XXXVI Number 14, Filed April 7, 2016, Proposed by #11062, Effective 4/1/2016, Expires 4/1/2026.