Surface Water Treatment Rule Compliance
Illinois Pollution Control Board Regulations and the Surface Water Treatment
Guidance Manual form the criteria for making the determinations required to
assess filtration adequacy and groundwater under the influence of surface water.
The Agency is required to review existing surface water treatment plants to
determine whether or not requirements of the Surface Water Treatment Rule are
being met. Based upon the information submitted by suppliers, evaluation of
adequacy is performed by Permits engineers and, if necessary, a field evaluation
performed by Field Operations personnel. Once all data is complete, a letter
reflecting compliance or inadequacy is sent to affected suppliers. Those supplies
which do not comply with the filtration requirements or which do not document
compliance undergo formal enforcement action and are required to commit to a
compliance schedule.
Groundwater under the direct influence of surface water is also addressed
by the Agency Permit Section. Actual inspection by the Field Operations Section
is conducted when necessary. Once sufficient information has been received to
complete the evaluation, a letter (Special Exception Permit) is issued by the
Agency to each facility documenting compliance or a compliance schedule negotiated
for any required improvements.
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