FIELD DOCUMENTS - Laserfiche WebLink

Home Browse Search

May 2005 Monthly Tre Water Self Monitoring Report - 1707C Cancpa's Car Wash, Stockton, CA Page 2 LABORATORY ANALYTICAL RESULTS A treated water sample collected from the final discharge point was delivered under chain-of-custody to Argon Laboratories, of Ceres, California (Argon). The sample was analyzed for pH, Oil and Grease, Benzene, Toluene, Ethyl-benzene, Xylene (BTEX), Methyl-t-Butyl Ether (MTBE), Di-Isopropyl Ether (DIPE), Ethyl-t-Butyl Ether (ETBE), t-Amyl Methyl Ether (TAME), and t-Butyl Alcohol (TBA). The treated water final discharge laboratory analytical methods, results, reporting limits and discharge limits are presented in Table 2, below. Laboratory certificates of analysis and the chain-of-custody record are included in Attachment A. Table 2 - Treated Water Monitoring Laboratory Analytical Results CONSTITUENT Monitoring Event Current Sample Date 6/22/05 Lab I Field* Analytical Reporting Discharge Method Limit/Units Limit/units Oil and Grease EPA 1664 5 mg/L 100 inel <5.0 mg/L Benzene EPA 8260B 0.5 pe 0.5 mg/l <0.5 pg/I Toluene EPA 8260B 0.5 pg/1 Total <0.5 gg/1 Ethyl Benzene EPA 8260B 0.5 gg/l Including benzene <0.5 pg/T Xylenes EPA 8260E 1 .0 pg/I 4.57 mg/I <1 .0 µg5 MTBE EPA 82608 0.5 pg/I NO <0.5 pgtl DIPE EPA 8260B 0.5 µg/1 NO <0.5 pg/I ETRE EPA 8260E 0.5 µg11 NO <0.5 µg/1 j TAME EPA 82608 0.5 µg/1 NO <0.5 µg/1 TBA EPA 8260B 5.0 µg/1 NO <5.0 µg/1 Cadmium EPA 200.7 0.005 Me 2.0 me NT Chromium EPA 200.7 0.01 mg/I 5.0 mg/I NT Copper EPA 200.7 0.01 me 6.0 me NT Lead EPA 200.7 0.01 mg/I 2.0 mg/I NT Nickel EPA 200.7 0.01 mg/1 5.0 mg/I NT Zinc EPA 200.7 0.02 mg/I 7.0 me NT Total Toxic Organics EPA 624 and 0.5-100 mg4 Total = 4.57 niel NT 625 Benzene = 0.5 mg/1 pH (lab: field*) EPA 150.1 Std. Units 5-10 8.1 8.46 Units: Analytical: mg/L = milligrams per liter = parts per million (ppm) B, T, E, X = benzene, toluene, ethyl benzene, total xylenes µg/1. = micrograms per liter = parts per billion (ppb) TPH-G = total petroleum hydrocarbons quantified as gasoline Gasoline oxygenates/additives = methyl tertiary-butyl ether (MTBE), tertiary- butanol (TBA), di-isopropyl ether (DIPE), ethyl tertiary butyl ether (ETBE), tertiary-amyl methyl ether (TAME) Notes: NT= not tested during this monitoring event * = treated water Field Measurements for pH FUTURE WORK Continue monthly self-monitoring of the site through cessation of the groundwater treatment project or as deemed necessary by the Client or MUD. it� CONDOR