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WASTE DISCHARGE REQUIREMENTS ORDER NO.R5-2002-0148 9- <br /> MUSCO FAMILY OLIVE COMPANY AND THE STUDLEY COMPANY <br /> WASTEWATER TREATMENT AND LAND DISPOSAL FACILITY <br /> SAN JOAQUIN COUNTY <br /> Constituent Units Range Average Standard Average plus two <br /> Deviation Std Deviations <br /> TDS mg/L 1,280- 1,971 1513 267 2,047 <br /> Sodium mg/L 228-477 372 112 597 <br /> Chloride mg/L 187- 514 334 133 601 <br /> Nitrogen-N mg/l 3.7-5.5 4.4 0.7 6 <br /> 43. Available groundwater quality for wells located within two miles of the site was presented in the <br /> RWD. The depth of the wells and screened intervals are variable, and the wells were sampled at <br /> various times between 1951 and 1979. The water quality data provides some information on the <br /> surrounding groundwater quality. The data is summarized below: <br /> Well ID Well Depth (ft) Year Sampled TDS (mg/L) Sodium(mg(L) Chloride (mg/L) <br /> 02SO4E26DO1M NA 1979 1,400 320 440 <br /> Cordes 290 1963 NA NA 317 <br /> 02SO4E27JO2M 300 1966-1969 NA 394a 352a <br /> 02SO4E28A1 294 1951 NA 390 250 <br /> 0204E28A1-D 290 1958-1967 1,826 384a 243a <br /> 0204E28H1 NA 1957-1959 2,030 4322 2953 <br /> 024E28P1 NA 1959 NA NA 120 <br /> 02SO4E33B01 NA 1979 1,360 300 240 <br /> 02SO4E33 NA 1955 2,620 682 560 <br /> 02SO4E33J1-D NA 1957-1967 2,470 598a 485a <br /> 02SO4E34H1 273 1959-1967 NA 558 256a <br /> 02SO4E35D1 NA 1951 NA 360 290 <br /> 02SO4E35H1 NA 1967-1979 NA 402a 333a <br /> Average 1,9156 43 lb 32 lb <br /> NA denotes Not Available. a Denotes value shown is an average of available data. 6 Denotes value calculated from all <br /> data available in RWD(not from average values calculated from each well as shown in this table). <br /> 44. Thirteen groundwater monitoring wells were installed in March and April 2002; one existing well <br /> was redeveloped. The locations of the monitoring wells are shown on Attachment C. The wells <br /> were sampled in April and June(with the exception of Well MW-9 because it did not have enough <br /> water to collect a sample). Shallow and deep zones of groundwater were identified in the <br /> investigation. A summary of the groundwater quality data is presented below. The values shown are <br /> an average of the two monitoring events. <br /> Well TOC Elev. Screen Depth TDS Cl Na NO3 as N <br /> ft. msl (ft. bgs) (1119V (mg/L) (111") (m <br /> MW-1(S) 443.13 30-45 730 89 245 15 <br /> MW-2(S) 403.53 149.5-164 9,900 2,165 2,450 1.6 <br />