OAR 340-150-0400
General Release Detection Requirements for Petroleum UST Systems

(1)

An owner and permittee of petroleum UST systems must provide a method of release detection that:

(a)

Can detect a release from any portion of the UST and the underground piping that routinely contains a regulated substance;

(b)

Is an approved leak detection method or equipment as listed by a national organization (e.g., the National Work Group on Leak Detection);

(c)

Is installed, calibrated, operated and maintained in accordance with the manufacturer’s instructions and third party evaluation for the leak detection method, including routine maintenance and service checks for operability or running condition;

(d)

Is capable of detecting the leak rate or quantity specified for that method in OAR 340-150-0450 (Automatic Tank Gauging Release Detection Method) through 340-150-0470 (Other Methods of Release Detection) or 340-150-0410 (Release Detection Requirements and Methods for Underground Piping) for piping, with a probability of detection of at least 95 percent and a probability of false alarm of no more than 5 percent.

(2)

Beginning on October 1, 2020, an owner and permittee must test the electronic and mechanical components of the release detection system on an annual basis in accordance with either the manufacturer’s instructions; a code of practice developed by a nationally recognized association or independent testing laboratory; or requirements determined by DEQ to be no less protective of human health and the environment than the two options listed above. The annual test must, at a minimum (as applicable to the UST facility):

(a)

Automatic tank gauge and other controllers: test alarm; verify system configuration; test battery backup; and

(b)

Probes and sensors: inspect for residual buildup; ensure floats move freely; ensure shaft is not damaged; ensure cables are free of kinks and breaks; test alarm operability and communication with controller.

(3)

An owner and permittee must select an appropriate primary release detection method for the UST system (OAR 340-150-0420 (Release Detection Requirements for Hazardous Substance UST Systems) through 340-150-0470 (Other Methods of Release Detection)). More than one method may be in use at an UST facility, but only one can be the primary method. The primary method must be reported to DEQ when an UST is installed or during an inspection by DEQ. The primary release detection method may not be switched from month to month depending on which method passes daily or monthly monitoring requirements. The primary method of release detection may be changed to another method as necessary as part of a repair or modification.

(4)

When a release detection method indicates a release may have occurred, an owner and permittee must notify DEQ of a suspected release in accordance with OAR 340-150-0500 (Reporting Suspected Releases).

(5)

An owner and permittee must maintain records demonstrating compliance with this rule and retain the following records for as long as the release detection equipment is in use:

(a)

All written performance claims pertaining to any release detection system used and the third party evaluation and approval;

(b)

The results of any sampling, equipment testing or monitoring; and

(c)

Written documentation of all calibration, maintenance and repair of release detection equipment permanently located on site, including any schedules of required calibration and maintenance provided by the release detection equipment manufacturer.

(6)

An owner and permittee must keep release detection records either:

(a)

At the UST facility and immediately available for inspection by DEQ; or

(b)

At a readily available alternative site and provide the records for inspection by DEQ upon request.

(7)

An owner and permittee may use the codes and standards listed in Appendix I of this division to comply with this rule.
[Note: View a PDF of Appendix I by clicking on the “Tables” link below.]
[ED. NOTE: To view attachments referenced in rule text, click here to view rule.]

Source: Rule 340-150-0400 — General Release Detection Requirements for Petroleum UST Systems, https://secure.­sos.­state.­or.­us/oard/view.­action?ruleNumber=340-150-0400.

340–150–0001
Purpose and Scope 340–150–0006
Applicability and General Requirements 340–150–0008
Exemptions and Deferrals 340–150–0010
Definitions 340–150–0020
UST General Permit Registration Certificate Required 340–150–0021
Termination of Temporary Permits 340–150–0052
Modification of Registration Certificates For Changes in Ownership and Permittee 340–150–0080
Denial, Suspension or Revocation of General Permit Registration Certificates 340–150–0102
Termination of General Permit Registration Certificates for Installation, Operation and Temporary Closure 340–150–0110
UST General Permit Registration, Annual Compliance and Other Fees 340–150–0135
General Requirements for Owners and Permittees 340–150–0137
UST Systems with Field-Constructed Tanks and Airport Hydrant Fuel Distribution Systems 340–150–0140
Requirements for Sellers of USTs 340–150–0150
Depositing Regulated Substances in USTs 340–150–0152
Requirements for Distributors of Regulated Substances for Deposit into USTs 340–150–0156
Performance of UST Services by Owners or Permittees 340–150–0160
General Permit Requirements for Installing an UST System 340–150–0163
General Permit Requirements for Operating an UST System 340–150–0167
General Permit Requirements for Temporary Closure of an UST System 340–150–0168
General Permit Requirements for Decommissioning an UST System by Permanent Closure or Change-in-Service 340–150–0180
Site Assessment Requirements 340–150–0200
Training Requirements for UST System Operators and Emergency Response Information 340–150–0210
Training Requirements for UST Operators 340–150–0250
Expedited Enforcement Process 340–150–0302
Installation of Used USTs 340–150–0310
Spill and Overfill Prevention Equipment and Testing Requirements 340–150–0315
Periodic operation and maintenance walkthrough inspections 340–150–0320
Corrosion Protection Performance Standards for USTs and Piping 340–150–0325
Operation and Maintenance of Corrosion Protection 340–150–0350
UST System Repairs 340–150–0352
UST System Modifications and Additions 340–150–0354
UST System Replacements 340–150–0360
Requirements for Internally Lined USTs 340–150–0400
General Release Detection Requirements for Petroleum UST Systems 340–150–0410
Release Detection Requirements and Methods for Underground Piping 340–150–0420
Release Detection Requirements for Hazardous Substance UST Systems 340–150–0430
Inventory Control Method of Release Detection 340–150–0435
Statistical Inventory Reconciliation Method of Release Detection 340–150–0440
Manual Tank Gauging Release Detection Method 340–150–0445
Tank Tightness Testing for Release Detection and Investigation 340–150–0450
Automatic Tank Gauging Release Detection Method 340–150–0465
Interstitial Monitoring Release Detection Method 340–150–0470
Other Methods of Release Detection 340–150–0500
Reporting Suspected Releases 340–150–0510
Suspected Release Investigation and Confirmation Steps 340–150–0520
Investigation Due to Off Site Impacts 340–150–0540
Applicability to Previously Closed UST Systems 340–150–0550
Definitions for OAR 340-150-0555 and 340-150-0560 340–150–0555
Compliance Dates for USTs and Piping 340–150–0560
Upgrading Requirements for Existing UST Systems 340–150–0600
Delegation of Program Administration 340–150–0620
Approval of More Stringent Performance Standards
Last Updated

Jun. 8, 2021

Rule 340-150-0400’s source at or​.us