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General Minimal Discharge Pcrndt Rationale <br />• Permit No. COG-6000AD <br />Page S <br />III. COVERAGE UNDER 77YIS PERMIT <br />E. (cont.) <br />In addition to the routine discharge monitoring report (DMR), a report will be required if <br />multiple discharges are going to occur, as with mobile washing facilities. The written report <br />must be sea to the Division duaifing the following information for each discharge: Date of <br />the discharge, Duration, Tots! Volume, and Flow Rate of she discharge, Location of the <br />discharge, and Best Managemem Practices used during the discharge. A form for this report <br />(Multiple Dischargc Report Form) is available from the Diviswn. This complued and signrd <br />form must 6e submitted with the quarterly DMR. <br />F. Non-residential facilities discharging groundwater with pol[utanufromfoundarion, basement, <br />or underground structure dewatering. <br />This application of the general permit is designed to cover discharges of groundwater from <br />short or long term dewatering of 6asemenu, foundations. and similar structures. The intent <br />of the Division is to provide coverage for industrial or convncrcial entities or municipality <br />owned structures (underpasses, etc.J, requiring long term dtwatering and has pollutants <br />which are amenable to control through low level rrtatment technologies or Besr Management <br />Practices (BMP's). This permit is not intended to address residential structures with sump <br />• pumps. <br />G. Facilities discharging non-comae cooling ar heating water. <br />Non-contact cooling or heating water is water that is kept separate from the liquids or solids <br />that it is cooling or heating, (in the case of a hot spring being diverted for use in hearing <br />floors or pools mainly in the commercial sating). <br />In the case of cooling water, the temperature of the water afltr use is of concern because, <br />heat rs transferred to the watts and this esters heat may be detrimental to the receiving <br />stream. Esters heat may cause alga! blooms, reduce the asygen carrying capability ojthe <br />stream, and be physically injurious to aquatic organisms. In the case of heating water from <br />hot springs, the water is usually cooltr after use and when discharged back into the same <br />area it flowed into before diversion should not pose a problem. See V.B.3. <br />r~ <br />L.J <br />