The Missouri Department of Natural Resources submitted rule changes to EPA on Dec. 11, 2012, for review and approval. State regulations previously allowed no more than three years for a permittee to come into compliance with its NPDES permit. Due to the limits of current technology for controlling some pollutants, full compliance is not always possible within a three-year period. Therefore Missouri proposed new regulations that allow for a longer compliance period, in accordance with federal regulations.
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