Or. Admin. Code § 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.
Notes
Stat. Auth.: ORS 536.027, 537.780
Stats. Implemented:
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