4720.5270 Evaluation Program


Published: 2015

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4720.5270 EVALUATION PROGRAM.


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Subpart 1.

Program required.

A wellhead protection plan must identify a strategy for evaluating the progress of the plan of action and the impact of a contaminant release on the aquifer supplying the public water supply well.


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Subp. 2.

Strategy requirements.

The evaluation strategy must:

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A.

be conducted throughout the drinking water supply management area;


§
B.

be based on the health risk the specific potential contaminant source presents to the public water supply well; and


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C.

specify the evaluation approach used for specific potential contaminant sources.



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Subp. 3.

Evaluation approaches.

Evaluation approaches are:

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A.

sampling the quality of the groundwater throughout the drinking water supply management area;


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B.

documenting inventory control of potential contaminants;


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C.

documenting the implementation of wellhead protection measures; and


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D.

using monitoring data already required by existing laws and rules in effect at the time of plan adoption.



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Subp. 4.

Evaluation frequency.

An evaluation must be conducted:

§
A.

every 2.5 years or less; and


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B.

when a wellhead protection plan is amended as required in part 4720.5570, subpart 1.



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Subp. 5.

Evaluation submittal.

An evaluation conducted in accordance with subpart 4, item B, must be submitted to the department at the first scoping meeting held to amend an existing plan.