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The New York State Department of Environmental Conservation has added a link to a translation service developed by Microsoft Inc., entitled Bing Translator, as a convenience to visitors to the DEC website who speak languages other than English.

Additional information can be found at DEC's Language Assistance Page.

Regulation of Geothermal Wells

For wells 500' deep or less

DEC's Division of Water (DOW) regulates wells up to 500' deep. The drilling, construction, operation and plugging of geothermal wells over 500' is regulated by the Division of Mineral Resources (DMN).

Registration and Certification

NYS law requires driller and pump installer registration and certification with the DOW for open-loop or standing column systems. Driller registration and certification is not required for closed-loop geothermal systems with boreholes drilled up to 500 feet deep.

Pre-notification and Completion Reports

NYS law requires that pre-notification and well completion reports be filed with the DOW for open-loop or standing column systems with boreholes drilled up to 500 feet deep. NYS law does not require pre-notification or a well completion report for closed-loop geothermal systems with boreholes drilled up to 500 feet deep.

Well Contractor Exams and Accreditation

Although not currently required by NYS law, geothermal contractors may take the "General Drilling Exam" and "Exam O: Ground water heat pumps", offered by the National Ground Water Association (NGWA). Geothermal contractors may also be accredited by the International Ground Source Heat Pump Association (IGSHPA). See "Links Leaving DEC's Website" (in the right hand column) for training opportunities.

Additional Requirements For Wells in Nassau, Suffolk, Kings and Queens Counties

A Part 602 permit is required for all open-loop or standing column geothermal systems with boreholes drilled up to 500 feet deep with the capability of producing more than 45 gpm. The permit application must be filed with the NYSDEC Regional Headquarters office in Stony Brook, NY. A Permit Application may be obtained by the following means:

  • By FAX - (631) 444-0424, please include a return fax number or postal address.
  • By U.S. Mail - NYSDEC, Water Supply Unit - Region 1; SUNY @ Stony Brook, 50 Circle Road, Stony Brook, NY 11790 - 3409
  • By Telephone - (631) 444-0410