OAR 690-210-0370: Well Test

Edition: Current OARD snapshotEffective: 2001-11-15Last verified: 2026-09-07

Upon completion, every well shall be tested for yield and drawdown either by bailing, pumping, or air testing for a period of not less than one hour. Any testing method that does not provide for drawdown measurements during testing is not an accurate or reliable test of yield.

Official history and status

Statutory/Other Authority: ORS 536.090 & 537.505 - 537.795

History: WRD 7-2001, f. & cert. ef. 11-15-01 WRD 8-1993, f. 12-14-93, cert. ef. 1-1-94 WRD 13-1986, f. 10-7-86, ef. 11-1-86, Renumbered from 690-061-0081 WRD 9-1978, f. 12-12-78, ef. 1-1-79

This rule cites

No citations extracted.

Cited by

OAR 690-230-0085: Pump Testing of Low-Temperature Geothermal Injection Wells with an Anticipated Injection Rate Exceeding 15,000 Gallons Per Day

Official source: https://secure.sos.state.or.us/oard/