ARCHIVED REPORTS XR0000677 - Laserfiche WebLink

Home Browse Search

30 October 2003 • AGE-NC Project No 96-0232 ' Page 5of15 ' on l I August 2003,and the laboratory reported a non-detectable level for MTBE Analytical results are summarized in Table 1, laboratory reports are in Appendix B Nitrate as NO3 was detected on 25 July, on 29 August and on 15 September 2003 at concentrations of 42 mg/l, 35 mg/1 and 21 mg/l, respectively, TDS values were reported on the samd dates at concentrations between 520 mg/1 and 607 mg/1 Analytical results are summanzed in Table 2, laboratory reports are In Appendix C r A bioassay laboratory analysis was performed on the grab sample collected from the effluent stream ' on 15 September 2003 Six 2,000-m1 dilution volumes consisting of 0%, 6 25%, 25%, 50%, 75% and 100% effluent water to delomzed water were tested with 20 Fathead minnow fish each, pH, dissolved oxygen (DO) and temperature parameters were monitored and fish mortalities were ' counted over 96 hours Temperature measurements generally vaned between 20 0 and 20 7 degrees Celsius (°C), pH measurements generally vaned between 7 70 and 8 50 and DO measurements generally vaned between 7 40 mg/l and 8 80 mg/1 The laboratory reported that there was one fish mortality after 96 hours in the above referenced sample, laboratory analysis of a duphcate effluent sample reported a total of zero fish mortalities after 96 hours The laboratory report concluded that 1 . there was no significant mortalities observed In the test The bioassay analysis is summarized in Table 3, laboratory reports are in Appendix C Utilizing an ICM water analyzer in the field, EC values were monitored on 25 July, on 29 August and on 15 September 2003 at concentrations between 671 µmhos/cm and 800 Ambos/cm,pH values were monitored at between 6 79 and 7 65,and temperature values were recorded at between 20 6°C and 22 3 °C, respectively Field monitoring results are summarized in Table 2 Utilizing a Blue-White Industries F-2000 flow meter,flow rates were measured and recorded on the ' above dates to be between 19 00 GPM and 24 25 GPM (Appendix A) ' 2 6 RECEIVING WATER MONITORING RESULTS In accordance with the requirements of RWQCB Monitoring and Reporting Program No 5-00-119, ' monthly ground water pump-and-treat receiving water(R-1 and R-2)monitoring was performed for total dissolved solids, flow rate, specific conductivity (EC), pH and turbidity on 25 July, on 29 August and on 15 September 2003 In addition, observations were noted in a log book (Appendix A) of floating or suspended matter, discoloration, bottom deposits, aquatic life, visible film-sheen-coatings, fungi and potential nuisance conditions Water monitoring could not be performed from R-1 during the 25 July, 29 August or the 15 September 2003 monthly monitoring events because there was no upstream water now Because f Advanced GeoEnvironmental,Inc 1