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IDEM has coordinated review of permit applications for a few mound, constructed wetland wastewater treatment systems with the State Department of Health (ISDH). ISDH reviewed the construction and design plans for the systems consistent with their review for similar non-community systems. IDEM defers to ISDH's review of design and construction plans.
IDEM has subsequently drafted an operation permit. These systems generally consist of a septic systems followed by constructed wetlands and mounds. The permit is in draft form and will soon be available on IDEM's website. We would appreciate your comments and suggestions. The following are some of the highlights of the Draft Operation Permit:
Monitoring is required both before and after the constructed wetlands
|Total Kjeldahl N (TKN)||Report|
|Total N (TKN+NO3+NO2)||10 mg/l|
Compliance point is at the discharge from the constructed wetland
Cannot cause the ground water in a drinking water supply well to have a contaminant concentration that creates any of the following: