25 Pa. Code Ch. 88 — Anthracite Coal

§ 88.92. Hydrologic balance: effluent standards. (a) Groups of effluent criteria. A person may not allow a discharge of water from an area disturbed by mining activities which exceeds the following groups of effluent criteria. The effluent limitations shall be applied under subse…

§ 88.93. Hydrologic balance: precipitation event exemption. (a) To establish the alternative effluent limitations of Group B or C in § 88.92(a) (relating to hydrologic balance: effluent standards), a permittee shall demonstrate to the Department’s satisfaction that a precipitatio…

§ 88.94. Hydrologic balance: stream diversions. Diversion of flow from perennial and intermittent streams shall meet the requirements of Chapter 105 (relating to dam safety and waterway management). Source The provisions of this § 88.94 adopted December 19, 1980, 10 Pa.B. 4789, e…

§ 88.95. Hydrologic balance: diversions. (a) Surface water and shallow groundwater flow from undisturbed areas which will drain into the affected area shall be intercepted and diverted away from the disturbed area by means of diversion. (b) Diversions shall be designed, construct…

§ 88.96. Hydrologic balance: sediment control measures. Appropriate sediment control measures shall be designed, constructed and maintained to: (1) Prevent, to the extent possible, contributions of sediment to streamflow or to runoff outside the affected area. (2) Meet the treatm…

§ 88.97. Hydrologic balance: treatment facilities. (a) At a minimum, facilities and measures for treating discharges from disturbed areas shall be designed, constructed and maintained to treat the runoff from a 10-year, 24-hour precipitation event and any groundwater contribution…

§ 88.98. Hydrologic balance: sedimentation ponds. (a) All surface drainage from the disturbed area—including areas which have been graded, seeded and planted—shall be passed through a sedimentation pond or a series of sedimentation ponds before leaving the permit area. The Depart…

§ 88.99. Hydrologic balance: discharge structures. Discharge from dams, ponds, embankments, impoundments and diversions shall be controlled by energy dissipators, riprap channels or other devices, where necessary, to reduce erosion, to prevent deepening or enlargement of streamch…