The URL can be used to link to this page

Home My WebLink AboutNCD980602163_19780120_Warren County PCB Landfill_SERB C_Draft Landfill Criteria as Proposed by EPA-OCR\. I I DRA.FT January 20, 1978 I. Land[ill Criteria As Proposed By EPA Si te _ i\pprov;il a. Suffi cie nt information shall he submitted to demonstrate that landfills loc- ated ove r useable aquifers s ha ll be located, constructed, and operated s o as to prevent direct surface or sub-surface hydraulic connection between th2 site and surface water or ground water. In order to achieve this objective, aerial photos showing site information of at least one mile in distance from the dis- posal site in any direction will be required. In addition, substantial site borings shall be made to determine the total sub-surface conditions as they exist at the disposal site. b. Sufficient infoTI1.2tion shall be provided to demonstrate that the landfill can be located, constructed, or operated so as to prevent erosion, landslides, or slumping. Basic information in this regard would include soil types as they exist both on the surface and in sub-surface conditions. Information on the permeability of both the surface and sub=surface soils shall be provided. II. Design Considerations a. Sufficient information shall be provided to demonstrate each landfill r~n bP. located, constructed, and operated either in existing natural sub-surface con- ditions or with the addition of a liner at the landfill site. b. Sufficient information shall be provided to demonstrate that sufficient distance to allow leachate monitoring and to provide adequate space for correction of any permit violation. at least c. Landfill site borders shall be 500 feet from any functioning public or private water supply or livestock water supply. That means 500 feet when the site is (d) located upgradient from any of the listed water supplies. The design consideration shall consider use of liners in addition to natural buffer zones between the historical high ground water table and the proje cted elevation of the waste re- ceiving site. Disposal sites in flood plain areas or adjacent to downstream -2- reaches of major or tribut3ry drainage will not be allowed. III. Qp eratiunal Considerati ons a. Waste containing free moisture will not be accepted at the landfill site. Wastes which are subject to resolubilize will be required to be chemically fixed in such a manner that the possibility for resolublization is reduced. Toxicity shall be reduced to a point that the materials can be considered to be basically inert in the landfill environment and in their stabilized state. b. Potentially incompatible wastes shall not be permitted to come in contact with one another where such contact could create a dangerous situation. Vertical and horizontal movement of gas must be controlled in such a manner that it will not be harmful to the public health or to the adjacent environment in which the land- fill is located. c. Abatement action shall be taken regarding the known breeding, harboring, or feeding vectors or any other pest of public health significance in and around the landfill site. Cover practices shall be commensurate with the materials being disposed and whenever possible shall be compacted and covered d_aily. Final recovery requirements shall conform to closure and long tenn care pro- visionXfound elsewhere in these regulations. Site information consideration shall include establishment of bench marks and ~~~viding of sufficient information to show original contours which can be utilized as a base reference when reviewing final contours as will be found in operational plans. Uncontainerized waste which are incompatible are to be disposed of in separate landfill areas or isolated within the same landfill by impermeable barriers. IV. Site Operational Restrictions shall not a. Bulk liquids and/or pumpible sludges E~t be disposed of at a hazardous waste landfill. (bin no case will a reactive waste be accepted at a hazardous waste disposal site. (c}lammable waste,those having a flash point of less than 60° (140°F. shall not be disposed of at a hazardous waste landfill. d. Highly volatile waste, those with a vapor pre~sure greater than 78 millimeters -3- of me rcury and 25° Centigrade will not be accepte d at a hazardous waste l andfill. (1-1r. h~Y.:!'.'f. Pumpible sludges may be cons ider ed for disposal a fte r solidification through · chemical fixation or absorption with suitable inert materials such as soil, lime, clay , s and, or other suitable mi xing material. V. Other Oa e r ational Consider~ti ons of a. Sufficient sorbent material shall be on hand to sorb all.Athe liquid contents of each container of liquid waste being held in storage on the hazardous waste disposal site. b. Structures for diversion of surface waters shall be constructed to prevent surface water runoff from entering the waste landfill. All surface water from the operational area of the disposal facility shall be collected and treated the asAhazardous waste. Gas venting can be considered as a means for controlling the vertical and/or horizontal movement of gas at the waste landfill. Fire hazards, infiltration, odors, erosion control, control of vectors, and other pests shall be minimized by the application of daily cover. When an area of the landfill is expected to be inactive over an extended period of 'time, considered to be one week or more, intermediate cover shall be provided of at least one foot in thickness. -f_;;, C-"•V-: (-' c.. Soil liners consisting of soils having a permeability of 10 to the mimts-& in f¼Ultimeters per SP~o..nd.....and at least five feetAthickness shall be specified as a soil liner in addition to any buffer deemed necessary by the department above the the existing usable ground water table. Other criteria forAsoil liners include no more than 30% of the soil passing a No. 200 sieve with a liquid limit .of less than 30 with a plasticity index equal to or less than 15, and finally, with a PH of 7 or higher. ---7 Leachate collection systems shall be operated so as to contain any leachate formed and have the capability of removing it from the landfill site. Soil permeability shall be the same as specified for the liner of the landfill disposal -4- site when used in connection with a leachate collection system. Minimum thickness of this liner shall be determined on a site by s i t e basis. The liner grades shall be such that the l eacha te is drained direc t ly by gravity to a sump ·collection area. Design of the leachate collection system shall include a permeabl e layer to permit any generated l e acha t e to move rapidly to the collection sump ar ea . Waste placed in sites having leachate collection systems shall be placed so as not to disturb the proper functioning of the leachate collection system. The leachate shall be removed periodically in order to prevent overspilling of the collection sump area and in such a manner that any possibilities for creating a hydraulic head are removed. Leachate collected from this system shall be treated as a hazardous waste a·nd wo1.1ld be subject to treatment as hazardous waste identified from any hazardous waste generation point.