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New Hampshire Department of Environmental Services
PUBLIC GOVERNMENT BUSINESS A to Z LIST

Frequently Asked Questions
 
  • How do I find a licensed water well contractor or pump installer?
    The DES One Stop Program has provided a query application for consumers to search for licensed well and pump contractors by company name, geographic area, or license type. Go to Water Well Contractors Query.
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  • What is an artesian well?
    An artesian well means a well deriving its water from a confined aquifer in which the water level stands above the ground surface; synonymous with a flowing artesian well. Note. Wells constructed in bedrock are commonly called artesian wells, however, only about 2 percent of bedrock wells are true artesian wells.
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  • What is a pounded well?
    A pounded well is a common name for a well drilled by a Cable Tool Drill Machine. The cable tool method of drilling employs the principal of free falling weight to deliver rhythmic blows against the bottom of a drill hole. Cable Tool drilling is considerably slower than rotary drilling.
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  • What is the state requirement for domestic well yield?
    The State of New Hampshire has no mandated minimum flow rate for private domestic wells. The Water Well Board has published a recommended minimum volume, for in door domestic use, of 600 gallons of water deliverable to the home by the water system within a 2 hour period at least once per day. For more information see fact sheet Recommended Minimum Water Supply Capacity for Private Wells Adobe Acrobat Reader Symbol(Fact Sheet WD-DWGB-1-8).
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  • What is hydrofracturing?
    Hydrofracturing also known as hydraulic fracturing is an optional well development technique used to increase production rates of wells by injecting water under high pressure and flow rates into a well to flush out or expand fractures within the well. For more information see fact sheet Bedrock Well Development by Hydrofracturing Adobe Acrobat Reader Symbol(Fact Sheet WD-DWGB-1-3).
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  • What is the state requirement for water quality testing?
    The State of New Hampshire has no requirement for water quality testing for private domestic drinking water supplies. DES has established a list of recommended water quality parameters for testing and has published the list in fact sheet Suggested Water Quality Testing for Private Wells Adobe Acrobat Reader Symbol(Fact Sheet WD-DWGB-2-1).
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  • I’m having a well drilled, how deep are the wells in my area? How much water do they supply?
    The Water Well Board and DES maintains records of all new wells constructed in New Hampshire since 1984. This information is available online: Well Completion Report Query Application.
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  • What is the state required setback distance from my well to my septic system or my property boundary?
    State regulations require a 75 foot protective radius for wells servicing homes with up to 5 bedrooms. The 75 foot setback applies to property boundaries and to the septic system, including the tank and leachfield. For more information see fact sheet The NH Groundwater Protection Act: An Overview Adobe Acrobat Reader Symbol(Fact Sheet WD-DWGB-21-1).
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NH Department of Environmental Services | 29 Hazen Drive | PO Box 95 | Concord, NH 03302-0095
(603) 271-3503 | TDD Access: Relay NH 1-800-735-2964 | Hours: M-F, 8am-4pm

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