The abandonment of wastewater lagoons will be completed in the following manner:
004.01 Abandoned lagoons will have the lagoon site re-graded to restore normal drainage to the area and prevent ponding.004.02 The lagoons will be drained of water down to the sludge layer. The wastewater disposal method will be submitted to the Department and receive approval prior to disposal.004.03 For lagoons that have received only domestic wastewater, a sludge layer less than six-inches thick may be buried on-site during re-grading of the lagoon dikes and the surrounding area. The sludge will be incorporated into the soil or receive at least one foot of cover material over the sludge layer.004.04 Sludge amounts in excess of six inches will be removed from the lagoon site and disposed in accordance with applicable federal and state regulations.004.05 Control structures -will be removed to a least three feet below grade and filled with compacted soil.004.06 Synthetic lagoon liners or covers will be removed from the site.123 Neb. Admin. Code, ch. 10, § 004
Amended effective 9/4/2019