Iowa DNR Risk Based Corrective Action

Risk Based Corrective Action

General Questions Surface Water

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Has a survey been done to identify designated use surface water bodies within 500 feet of the soil and groundwater sources?

Yes No

Designated use surface water bodies are present?

Yes No

Does the surface water body have a "C" designation as a drinking water source?

Yes No

Does the surface water have a "HH" designation?

Yes No

Types of Designated Use Present (Select all that apply)

Are surface water bodies (general or designated use) present within 200 feet of the soil or groundwater source?

Yes No

Has a visual inspection been completed of all surface water bodies (general and designated use) within 200 feet of the soil and groundwater source?

Yes No

Does the visual inspection show evidence of a possible petroleum sheen on the water or residue along a bank?

Yes No

In the opinion of the certified groundwater professional, is the sheen or residue a result of the leaking underground storage tank?

Yes No

If the previous question is answered no, provide a justification.

In the opinion of the groundwater professional, is the sheen or residue a petroleum-regulated substance?

Yes No

Has a laboratory test confirmed the sheen or residue is NOT a petroleum-regulated substance?

Yes No

If the answer in the previous question is yes, please provide a justification.

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