|
' 13 July 2001
<br /> AGE-NC Project No 96-0232
<br />' Page 5of15
<br />' volume of 2,000 ml of di-ionized water, pH, dissolved oxygen (DO) and temperature parameters
<br /> were monitored and fish mortalities were counted over 96 hours The bioassay analysis generally
<br /> reported a steady decrease in pH and DO in each sample factor over the 96 hour period, the analysis
<br />' reported decreasing pH and DO values with increasing sample factors Temperature measurements
<br /> vaned between 19 7 and 20 8 degrees Celsius (°C) The laboratory reported that there were no fish
<br /> mortalities in the above referenced sample, laboratory analysis of a duplicate sample reported one
<br />' fish mortality after 72 hours and a second fish mortality after 92 hours The bioassay analysis Is
<br /> summarized in Table 3, laboratory reports are in Appendix C
<br /> IUtilizing an ICM water analyzer and a YSI-50 dissolved oxygen meter in the field, EC values were
<br /> monitored on 09 April, 03 May and 04 June 2001 at 998 ,umhos/cm, 1016 µmhos/cm and 982
<br /> I µmhos/cm, respectively,pH values were monitored at 6 95, 7 08 and 7 01, respectively, DO values
<br /> were reported at 4 43 mg/L, 4 43 mg/L and 4 48 mg/L, respectively, and temperature values at 20 4
<br /> °C, 22 0 °C and 22 2 °C, respectively Field monitoring results are summarized in Table 2
<br /> IUtilizing a Blue-White Industries F-2000 flow meter, flow rates were observed on 09 April, 03 May
<br /> and 04 June 2001 at 23 4$ GPM,20 00 GPM and 22 74 GPM, between 01 April and 30 June 2001,
<br /> field observations of effluent-flow rates were generally recorded between 21 73 GPM and 23 48
<br /> GPM (Appendix A)
<br /> 2 7 RECEIVING WATER MONITORING
<br /> In accordance with the requirements of RWQCB Monitoring and Reporting Program No 5-00-119,
<br /> monthly ground water pump-and-treat receiving water(R-1 and R-2)monitoring was performed for
<br /> total dissolved solids, flow rate, specific conductivity(EC), pH and turbidity on 09 April, 03 May
<br /> and 04 June 2001, observations were noted in a log book (Appendix A) for floating or suspended
<br /> matter, discoloration, bottom deposits, aquatic life, visible film-sheen-coatings, fungi and potential
<br /> nuisance conditions Between 01 April and 30 June, there was no upstream flow observed in the
<br /> ditch and therefore, water monitoring could not be performed at R-1
<br /> Because there was no upstream flow at R-1 and the area was dry, the downstream flow rate at R-2
<br /> appeared to be equal to the ground water pump and treat effluent flow rate of approximately 23
<br /> GPM Observations logged in a notebook indicate that there was no floating or suspended matter,
<br /> discoloration,bottom deposits, aquatic life or visible film-sheen-coatings,however there was a small
<br /> amount of algae growth at the bottom of the ditch Potential nuisance conditions observed included
<br /> trash in ditch (I e fast food containers, tire,paper and dry bush cuttings)
<br /> IUtilizing an ICM water analyzer and a YSI-50 dissolved oxygen meter in the field, dissolved oxygen
<br /> was monitored at R-2 on 09 April, 03 May and 04 June 2001 at concentrations of 5 69 mg/l, 4 64
<br /> Advanced GeoEnvâ–şronmentai,Inc
<br />
|