Code of Maine Rules
06 - DEPARTMENT OF ENVIRONMENTAL PROTECTION
096 - DEPARTMENT OF ENVIRONMENTAL PROTECTION - GENERAL
Chapter 550 - DISCONTINUANCE OF WASTEWATER TREATMENT LAGOONS
Section 096-550-4 - Permanent Abandonment

Universal Citation: 06 ME Code Rules ยง 096-550-4

Current through 2024-38, September 18, 2024

Any person who intends to permanently discontinue the use of a lagoon shall follow the following minimum procedures:

A. The contents of the lagoon shall be diluted by uncontaminated water until the effluent parameters within the lagoon are equal to or less than the final discharge parameters.

B.The discharge at the time of dilution shall be consistent with the terms of the discharge license.

C.When the contents of the lagoons are equal to or less than the final discharge parameters the lagoon area shall be emptied at a rate consistent with the receiving waters classification requirements.

D.When the liquid in the lagoon has been completely discharged and/ or evaporated the sludge in the lagoon shall be (1) removed, or (2) if appropriate used as a soil conditioner.

E.Within fifteen (15) days of removal of the sludge or preparing the soil/sludge mixture the lagoon area shall be graded and seeded with a perennial type plant growth that will prevent erosion and leaching of contaminants into surface and ground waters.

F.If any any time during the dewatering, sludge removal, soil-sludge mixture, and/or seeding, process water is added to the lagoon area by natural or artificial means the dewatering process shall be repeated in accordance with these regulations.

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