- (a) A person that installs a storage pad or liner system to prevent groundwater degradation shall meet the requirements of this section. This section does not preclude a person from using other means to prevent groundwater degradation, such as enclosure in a building.
(b) The storage pad or liner system must meet the following requirements:
- (1) Prevent the migration of leachate through the storage pad or liner system.
- (2) May not be adversely affected by the physical or chemical characteristics of coal ash, coal ash constituents or leachate from the coal ash storage piles.
- (3) Be designed, constructed and maintained to protect the integrity of the pad or liner during the storage of coal ash.
- (4) Be designed to collect leachate and runoff.
- (5) Be constructed of nonsolid waste and noncoal ash material.
- (6) Be no less permeable than 1 x 10-7 cm/sec., as demonstrated by field and laboratory testing.
- (7) Be inspected for uniformity, damage and imperfections during construction and installation.
- (c) The person shall install and operate a monitoring system capable of verifying whether coal ash or leachate has penetrated the pad or liner, if required by the Department.
- (d) Coal ash may not be stored where continuous or intermittent contact could occur between the coal ash and groundwater or surface water.