Laserfiche WebLink
WASTE DISCHARGE REQUIREMENTS -2- <br />CI ,Y OF,STOCKTON <br />FR-NCH'CA0;'LANDFILL <br />-f-LASS II, OiNDFILL <br />N 0AQ'U N COUNTY I 1; <br />concrete free of reinforcing steel, and asphalt concrete), and <br />4) wood wastes. These wastes are classified as 'nonhazardous <br />solid waste' or 'inert waste' using the criteria set forth in <br />Chapter 15. The discharge rate is approximately 80 cubic <br />yards per day. <br />7. Land within 1,000 feet of the facility is zoned residential <br />within the City of Stockton,'s jurisdiction. Van Buskirk <br />Business Park is located adjacent to Walker Slough north of <br />the site and is limited to small businesses. <br />8. The soils immediately underlying the landfill are lenticular <br />units composed of clay, silt, and sand with minor amounts of <br />gravel. <br />9. Published information indicates that no active faults occur <br />within the site. The maximum credible earthquake for faults <br />nearest the site range from 6.2 to 6.8 magnitude. The <br />anticipated maximum ground acceleration is 0.4g. <br />10. The first water bearing formation is approximately 30-45 feet <br />below the base of the landfill. The hydraulic gradient is <br />generally to the north-northeast toward pumping depressions <br />northwest and east of Stockton; groundwater flows at a <br />velocity of at least 5 feet per year, but not more than 40 <br />feet per year. <br />11. Refuse is in contact with ground water in a localized area in <br />the vicinity of well MW -1 and is the suspected source of VOCs <br />in ground water from this well. VOCs have not been detected <br />in water from the three downgradient monitoring wells. An <br />evaluation monitoring program pursuant to Article 5, Chapter <br />15 will be required as specified in this Order. <br />12. The beneficial uses of ground water are municipal and domestic <br />supply (MUM) , industrial process supply (PROC) , and ground <br />water recharge (GWR). <br />13. The facility receives an average of approximately 14 inches of <br />precipitation per year as reported by the National Weather <br />Service. The mean evaporation for this facility is 101 inches <br />per year as measured between 1953 through 1979 at the Tracy <br />Pumping Plant. <br />