OAR 690-240-0440
Additional Standards for Artesian Monitoring Wells


(1)

Monitoring wells penetrating into an artesian aquifer shall have an upper oversize drillhole at least four inches greater in diameter than the nominal diameter of the permanent well casing except as noted in OAR 690-240-0525 (Piezometers) concerning piezometers. Watertight unperforated casing shall extend and be sealed, according to OAR 690-240-0475 (Well Seals), at least five feet into the confining interval immediately overlying the artesian water-bearing zone.

(2)

If an artesian monitoring well flows at land surface, the well shall be equipped with a control valve and a watertight mechanical cap, threaded or welded, so that all flow of water from the well can be completely stopped.

(3)

All flowing artesian monitoring wells shall be equipped with a pressure gauge placed on a dead-end line. A petcock valve shall be placed between the gauge and well casing.

(4)

All flowing artesian monitoring wells shall be tested for artesian shut-in pressure in pounds per square inch and rate of flow in cubic feet per second, or gallons per minute, under free discharge conditions. This data shall be reported on the well report.

Source: Rule 690-240-0440 — Additional Standards for Artesian Monitoring Wells, https://secure.­sos.­state.­or.­us/oard/view.­action?ruleNumber=690-240-0440.

690‑240‑0005
Introduction
690‑240‑0006
Special Standards
690‑240‑0007
Special Area Standards
690‑240‑0010
Definitions
690‑240‑0011
Organic Materials
690‑240‑0012
Public Safety
690‑240‑0013
Wells Cannot Be Used for Disposal of Contaminants
690‑240‑0014
Water Used Must be Potable
690‑240‑0015
Delegation of Responsibility for Monitoring Wells, Geotechnical Holes and Other Holes
690‑240‑0016
Unattended Wells
690‑240‑0020
Delegation Conditions
690‑240‑0024
Well Identification Label
690‑240‑0026
Well Identification Label Maintenance
690‑240‑0030
Other Holes: General Performance and Responsibility Requirements
690‑240‑0035
Geotechnical Holes: General Performance and Responsibility Requirements
690‑240‑0040
Closed Loop Ground Source Heat Pump Boring — General Requirements
690‑240‑0043
Construction Standards
690‑240‑0046
Grouting of Uncased Boring
690‑240‑0049
Reporting Requirements
690‑240‑0055
License Required to Construct Monitoring Wells
690‑240‑0060
Monitoring Well Constructor License Examination
690‑240‑0065
Monitoring Well Constructor License, Experience Requirements and Trainee Card
690‑240‑0070
Terms of Monitoring Well Constructor License and License Fees
690‑240‑0200
Continuing Education Committee
690‑240‑0210
Continuing Education Requirement
690‑240‑0220
Documentation
690‑240‑0240
Approved Course List/Course Approval and Assignment of CECs
690‑240‑0250
Course Sponsor Requirements
690‑240‑0260
Loss of Approval
690‑240‑0270
Courses Taken Without Prior Approval
690‑240‑0280
Waivers
690‑240‑0320
Contracting for Services
690‑240‑0330
Monitoring Well Constructor and Landowner Well Bonds or Letters of Credit
690‑240‑0340
Landowner Well Construction Permit, Fee and Bond
690‑240‑0355
Monitoring Well Drilling Machines
690‑240‑0375
Monitoring Well Construction Notice Required (Start Card)
690‑240‑0385
Start Card Reporting Requirements
690‑240‑0395
Monitoring Well Report Required (Monitoring Well Log)
690‑240‑0410
Monitoring Well Construction: General
690‑240‑0420
Well Protection
690‑240‑0430
Casing
690‑240‑0440
Additional Standards for Artesian Monitoring Wells
690‑240‑0450
Cleaning
690‑240‑0460
Monitoring Well Screen, Filter Pack, and Filter Pack Seal
690‑240‑0475
Well Seals
690‑240‑0485
Monitoring Well Development
690‑240‑0500
Completion of Monitoring Wells
690‑240‑0510
Abandonment of Monitoring Wells
690‑240‑0525
Piezometers
690‑240‑0540
Direct Push Monitoring Wells and Piezometers
690‑240‑0550
Evidence of Failure
690‑240‑0560
Investigation of Alleged Violations
690‑240‑0580
Enforcement Actions
690‑240‑0590
Multiple Violations and Consolidation of Proceedings
690‑240‑0600
Factors Affecting Selection of Type and Degree of Enforcement
690‑240‑0610
Change in Enforcement Status
690‑240‑0630
Assessment of Civil Penalties
690‑240‑0640
Schedule of Civil Penalties
Last Updated

Jun. 8, 2021

Rule 690-240-0440’s source at or​.us