New Hampshire Code of Administrative Rules
We - Water Well Board
Chapter We 600 - STANDARDS FOR THE CONSTRUCTION, MAINTENANCE AND ABANDONMENT OF WELLS
Part We 602 - NEW WELL CONSTRUCTION
Section We 602.34 - Development of Well Yield by Hydrofracturing

Universal Citation: NH Admin Rules We 602.34

Current through Register No. 12, March 21, 2024

A water well contractor who uses hydrofracturing, as defined in We 101.20 to potentially increase the yield of a water well shall comply with the following requirements:

(a) Injection water used for hydrofracturing shall be drawn from a potable source if available;

(b) If a potable water source is not available, a water well contractor may use non-potable water if the water is:

(1) Not drawn from stagnant water sources such as beaver ponds;

(2) Free of visible sediment; and

(3) Chlorinated to a minimum concentration of 50 parts per million and allowed to stand for a minimum of 1/2 hour contact-time prior to use;

(c) Packer settings shall be no less than 40 feet below the bottom of the casing and at least 60 feet below ground surface;

(d) For wells yielding 5 gallons per minute or less, yield measurement shall be for a minimum of 30 minutes after dewatering the hole and until the flow has stabilized;

(e) Dewatering the hole shall be accomplished by removing, either by pumping or by air lift method, no less than a quantity of water equal to the volume of water in the well;

(f) For the purposes of (e), above, dewatering a 6 inch diameter, 500 foot well, shall require removing a minimum of 1 1/2 gallons of water per linear foot of water column from the well, prior to taking the first yield measurement; and

(g) Dry ice and explosives shall not be used for hydrofracturing or well development in bedrock well construction.

Disclaimer: These regulations may not be the most recent version. New Hampshire may have more current or accurate information. We make no warranties or guarantees about the accuracy, completeness, or adequacy of the information contained on this site or the information linked to on the state site. Please check official sources.
This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.