The following is PSTF's summary of the Idaho Department of Environmental Quality's Petroleum Release Response Requirements found in the Idaho Water Quality Standards and Wastewater Treatment Requirements, IIDAPA 58.01.02.851 and 852. Contact your regional IDEQ office for additional guidance.

Responding to Petroleum Releases

Short-term Action:

• Identify and mitigate fire, explosion, and vapor hazards. Some situations may require you to immediately notify your local fire department.
• Report the release to IDEQ within 24 hours.
• Take immediate action to prevent any further release of petroleum into the environment.
• Handle contaminated materials, including soil and water, in a responsible manner. This may require safely storing contaminated materials until proper disposal or treatment can be accomplished. Avoid contaminating previously uncontaminated areas.
• Begin removing free product floating on groundwater or in excavations as soon as possible.

Reporting Requirements

Owners and operators of petroleum storage tank (PST) systems must report to IDEQ within 24 hours if any of the following conditions occur:

Underground Releases:

• A discovery by owners, operators, or others of a petroleum release at the PST site or surrounding area. Discovery can include the presence of free product or dissolved product in nearby surface or groundwater or vapors in soils, basements, sewer, or utility lines.
• Unusual operating conditions including erratic behavior of product dispensing equipment, sudden loss of product from the PST system. However, no reporting is required if the PST system equipment is found to be defective but not leaking and is repaired or replaced immediately.
• Monitoring results from a release detection method indicating a release may have occurred. However, no reporting is required if the monitoring device is found to be defective and is immediately repaired, recalibrated, or replaced, and additional monitoring does not confirm a release or, in the case of inventory control, a second consecutive month of data does not confirm a release.

Aboveground Spills and Overfills

• Aboveground spills and/or overfills of petroleum exceeding 25 gallons or causes a sheen on nearby surface water must be reported to IDEQ within 24 hours. If less than 25 gallons and no sheen is visible on nearby surface water, IDEQ need only be notified if cleanup cannot be completed within 24 hours.
• To report a petroleum release during regular business hours, contact the appropriate regional IDEQ office.

Reporting Releases When IDEQ
Offices Are Closed

800-632-800 (calls from within Idaho) or
208-334-4570 (calls from outside Idaho)

ALL Petroleum Release Reporting, Investigation and Confirmation Administrative Rules (See 851 and 852)
(Requires Adobe Reader)

Return to home