Section 30.614 - Testing, monitoring and Inspection(1) During construction and installation, each liner and cover system (e.g., membranes, sheets and coatings) shall be inspected for uniformity, damage, and imperfections (e.g., holes, cracks, thin spots, or foreign materials). Immediately after construction or installation: (a) Each synthetic liner and cover shall be inspected, using methods acceptable to the Department, to ensure tight seams and joints and the absence of tears, punctures, or blisters; and(b) Each soil-based and each admixed liner and cover shall be inspected for imperfections, including lenses, cracks, channels, root holes, or other structural defects, that may cause an increase in the permeability of the liner or cover.(2) After a liner has been installed and prior to introducing hazardous waste into the impoundment, the owner or operator shall obtain from an independent Massachusetts registered professional engineer a certification which states that: (a) The liner has been inspected in accordance with 310 CMR 30.614(1); and(b) Each defect found has been properly repaired.(3) While a surface impoundment is in operation, it shall be inspected weekly and also immediately after storms to detect evidence of any of the following: (a) a deterioration, malfunction, or improper operation of freeboard control systems;(b) A decrease in the level of the impoundment's contents;(c) The presence of liquids in leak detection, collection and removal systems installed to comply with 310 CMR 30.612(3); and(d) Erosion or other signs of deterioration in dikes or other containment devices.(4) The owner or operator shall obtain a certification from an independent Massachusetts registered professional engineer that the impoundment's dike, including that portion of the dike which provides freeboard, has structural integrity. This certification shall be obtained:(a) For each existing surface impoundment, prior to the issuance of a license;(b) For each new surface impoundment, prior to being placed in service and after construction; and(c) For any impoundment, prior to being returned to service if the dike has been repaired or after any period of time during which the impoundment was not in service for six months or longer.(5) The certification required by 310 CMR 30.614(4) shall be that the dike: (a) Will withstand the stress of the pressure exerted by the type(s) and amount of waste to be placed in the impoundment; and(b) Will not fail due to scouring or piping, and to prevent such failure, there is no dependence on any liner system included in the surface impoundment construction.(6)310 CMR 30.614(6) applies to each liner installed after October 15, 1983. Submitted with the license application shall be a demonstration that the waste(s) and leachate that may be in contact with the liners are compatible with the liner materials to be used. The license applicant shall persuade the Department that the wastes will not cause any detrimental effect (e.g., cause cracks, swelling, decrease in mechanical strength, change in chemical properties or increase in permeability) on the liner materials used to prevent leakage into or out of the space between the liners. This demonstration shall be made by field tests or laboratory tests which are acceptable to the Department. All such testing shall be fully documented and submitted with the license application.(7) The Department may specify that, prior to or during installation of a liner, the physical characteristics (e.g., tensile strength, puncture resistance) of a sample from the liner(s) be tested to ensure that the quality of the material being installed meets manufacturer's specifications and any design specifications included in the facility license.(8) The Department may specify in the facility license that liner samples be periodically tested to assess the performance or condition of the liner. Note: For information on liner testing methods, see Lining of Waste Impoundments and Disposal Facilities, U.S. E.P.A. Office of Solid Waste and Emergency Response, SW-870, march 1983.