TABLE 1. Status of RBCA Programs in Some States

State/Territory

ASTM training program entered?

RBCA in place or proposed?

Scope of RBCA

State allows consideration of RNA as risk management measure?

Restrictions for application of RNA

Alabama

Yes

Yes

UST, Voluntary Corrective Actions, Petroleum ASTs

Yes

Limit on plume growth (500ft)

Arkansas

Yes

Yes

UST, Petroleum releases

Yes

California

Yes

No

Yes

No risk

Colorado

Yes

Yes

Yes

Delaware

Yes

Yes

UST

Yes

Post-closure monitoring

Florida

Yes

Yes

UST, Voluntary Corrective Actions, Dry Cleaning Cleanup Program, Brownfields

Yes

Default criteria and scientific evaluation process

Georgia

Yes

Yes

UST, Voluntary Corrective Action, Oil and Gas Wastes

Yes

Not to exceed alternate concentration limits

Illinois

Yes

Yes

UST, Voluntary Corrective Action, Brownfields, Superfund, RCRA, MSW

No

Iowa

Yes

Yes

UST

Yes

RNA determined by trends in analytical data

Michigan

Yes

Yes

UST

Yes

No impacts to receptor during RNA period. Provide isolation distance from private and public well water supplies

Montana

Yes

Yes

UST, expansion is possible

No

New York

Yes

Yes

UST, Voluntary Corrective Action, Brownfields, Petroleum releases

Yes

Institutional controls, post-closure monitoring

Texas

Yes

Yes

UST, Voluntary Corrective Action, Superfund, RCRA, MSW

Yes

Utah

Yes

Yes

UST

Yes

Case-by-case basis

Wyoming

Yes

Yes

UST

Yes

Contamination must be close to remediation standard and time to complete RNA must approximate time for active remediation without significant spreading

Data sources: GSI, 1998, US EPA, 1998c

For status of RBCA programs in all US States go to www.epa.gov/swerust1/rbdm/rbcamap.htm, and www.gsi-net.com/RBCAPOS RNA- Remediation by Natural


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This article originally appeared in the 12/01/2000 issue of Environmental Protection.

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