Or. Admin. Code § 690-240-0040

Current through Register Vol. 63, No. 12, December 1, 2024

Section 690-240-0040 - Closed Loop Ground Source Heat Pump Boring - General Requirements

(1) In addition to the requirements for cased permanent and uncased permanent geotechnical holes contained in 690-240-0035, a closed loop ground source heat pump boring greater than 18 feet deep shall meet the following requirements:

(a) Prior to installation, the professional responsible for the construction of the ground source heat pump boring is encouraged to notify the Department's regional office.

(b) Ground source heat pump borings shall not be used for any purpose other than heat exchange.

(c) After completion, ground source heat pump borings shall not be converted to a monitoring well or a water supply well without written approval by the Department.

(d) The professional shall ensure that the ground source heat pump boring is constructed in accordance with 690-240-0040 through 690-240-0049.

(2) A minimum setback of 50 feet is required from any potential source of groundwater contamination, including but not limited to, temporarily abandoned water supply wells, water wells, septic tanks, drain fields, fuel oil or other petroleum tanks, cesspools, chemical storage or preparation areas. Municipal sewer and storm water systems are excluded from the 50 feet setback.

(3) All fluids used in the construction of a closed loop ground source heat pump boring and associated ground source heat pump system shall meet International Groundwater Source Heat Pump Association standards in place at the time of construction and shall be handled, utilized, and installed in a manner that does not contaminate the groundwater resource.

Or. Admin. Code § 690-240-0040

WRD 2-2012, f. & cert. ef. 2-2-12

Stat. Auth.: ORS 536.027, 537.780

Stats. Implemented: