Closed Loop Geothermal Systems
Closed loop geothermal system installations are governed by CT Regulation Sec. 25-128-41a. The purpose of this regulation is to prevent groundwater contamination, and establishes specific separating distance specifications. See also PHD Sect. 19-13-B103d(b)
What is a Closed Loop Geothermal System?
A closed loop geothermal system continuously circulates a heat transfer solution through buried or submerged plastic pipes. The loop is filled just once and requires only a moderate amount of solution. The same solution is used again and again in a closed loop. These underground pipes connect to an indoor heat pump to provide heating and cooling. Closed loop geothermal systems are not considered water supply wells, however it is essential that these systems be treated carefully because they may function as conduits for pollution to enter the aquifer.
Bethel Health Department Application Process
A. Applicant must submit the following:
1. If the property is served by a private well and/or septic system:
a. A completed and signed Well Drilling Permit Application (provided by the State of CT. Dept. of Consumer Protection) and $100 Well Fee payable to Town of Bethel; and
b. A completed and signed Addition, Accessory Structure and Utilities Application and $50 fee payable to Town of Bethel. Select "Other" category on application and explain details of project
2. If property is not served by a private well and/or septic system, a completed and signed Well Drilling Permit Application (provided by the State of CT. Dept. of Consumer Protection) and $100 Well Fee payable to Town of Bethel. Note The Addition, Accessory Structure and Utilities Application is not required in this instance.
Applicant must always provide information on borehole type and distance to existing septic system, wells drainage structures, public utility pipes, underground tanks - oil, propane, etc. See Sec. 25-128-41a.
B. Bethel Health Department completes Application Review.
C. Site inspection is done (if necessary to confirm separating distances).
D. Determination is made. If project meets code, then Bethel Health Department approves, signs and dates the Well Drilling Permit.
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