OAR 690-230-0080
Pump Testing of Low-Temperature Geothermal Injection Wells with an Anticipated Injection Rate of Less than 15,000 Gallons Per Day

(1)

All low-temperature geothermal injection wells with an anticipated injection rate of less than 15,000 gallons per day shall be pump tested for a period of at least one hour. Test results must be recorded by the well constructor on the water supply well report. This minimum test shall be conducted as follows:

(a)

Prior to testing, the static water level in the well shall be measured and recorded;

(b)

The water shall be pumped into or from the well at a measured and steady rate. The pumping or withdrawal rate shall approximate the maximum anticipated injection rate;

(c)

For tests that withdraw water from the well, only bailing or pumping the well is acceptable; and

(d)

At a minimum the water level in the well shall be measured and recorded both at the end of pumping and after one hour of recovery.

(2)

The Director may require the well owner to provide a more detailed test, separate from the water well report, that could include, but is not limited to, increased frequency of water level measurement, increased test duration and increased monitoring of observation wells. Such modifications will be required when possible impacts resulting from the development include, but are not limited to, thermal or hydrologic interference with existing water rights, water quality degradation or physical or mechanical failure of the well structure.

Source: Rule 690-230-0080 — Pump Testing of Low-Temperature Geothermal Injection Wells with an Anticipated Injection Rate of Less than 15,000 Gallons Per Day, https://secure.­sos.­state.­or.­us/oard/view.­action?ruleNumber=690-230-0080.

690–230–0005
Policy and Purpose 690–230–0020
Definitions 690–230–0030
Construction of Low-Temperature Geothermal Production and Injection Wells 690–230–0040
Location of Low-Temperature Geothermal Injection Wells Not Exceeding 15,000 Gallons Per Day 690–230–0045
Location of Low-Temperature Geothermal Injection Wells Exceeding 15,000 Gallons Per Day 690–230–0050
Description of Proposed Well Use (Start Card) 690–230–0060
Identification of Intended Well Use (Well Log) 690–230–0070
Well-Head Protection Equipment 690–230–0075
Disposal of Low-Temperature Geothermal Fluids Produced During Drilling and Testing 690–230–0080
Pump Testing of Low-Temperature Geothermal Injection Wells with an Anticipated Injection Rate of Less than 15,000 Gallons Per Day 690–230–0085
Pump Testing of Low-Temperature Geothermal Injection Wells with an Anticipated Injection Rate Exceeding 15,000 Gallons Per Day 690–230–0090
Water Temperature Measurement 690–230–0100
Additional Standards for Low-Temperature Geothermal Injection Wells 690–230–0110
Injection Plan for Wells with an Anticipated Injection Rate Not Exceeding 15,000 Gallons Per Day 690–230–0115
Injection Plan for Wells with an Anticipated Injection Rate Exceeding 15,000 Gallons Per Day 690–230–0120
Water Rights Procedure Processing of Applications 690–230–0130
Exemption from Water Right Permit Application/Use of Low-Temperature Geothermal Fluid 690–230–0140
Water Right Limitation for Nonstandard Effluent Disposal Systems
Last Updated

Jun. 8, 2021

Rule 690-230-0080’s source at or​.us