Laserfiche WebLink
MONITORING AND REPORTING PROGRAM <br /> UNITED STATES ARMY CORPS OF ENGINEERS AND PORT OF STOCKTON <br /> STOCKTON DEEP WATER CHANNEL AND TURNING BASIN MAINTENANCE DREDGING PROJECT <br /> SAN JOAQUIN COUNTY -3- <br /> Samples shall be collected and analyzed from Stations R-3 and R-4 as follows: <br /> Constituent/ Sampling Minimum <br /> Analysis Units Frequency Detection Limit (mg/1 ) <br /> pH pH units 2 x week' <br /> Suspended Solids mg/l 2 x week' <br /> Electrical Conductivity pmhos/cm 2 x week' <br /> Hardness, as CaCO3 mg/l Monthly <br /> Turbidity NTUs Daily <br /> Tributyl Tin mg/1 Monthly 0.00002 <br /> Total Silver mg/l Monthly 0.0001 <br /> Total Arsenic mg/l Monthly 0.001 <br /> Total Cadmium mg/l Monthly 0.0005 <br /> Total Chromium mg/l Monthly 0.001 <br /> Total Copper mg/l Monthly 0.001 <br /> Total Mercury mg/l Monthly 0.0002 <br /> Total Nickel mg/l Monthly 0.005 <br /> Total Lead mg/l Monthly 0.002 <br /> Total Zinc mg/l Monthly 0.002 <br /> ' Two times per week. <br /> Samples shall be collected on the same days as the samples for the return flow <br /> discharge monitoring. <br /> ROBERTS ISLAND DREDGED SEDIMENTS MONITORING <br /> The dredged sediments remaining on Roberts Island may be required to be tested after <br /> dredging operation. If so requested by the staff of the Regional Board, the testing <br /> shall be as follows: <br /> Constituent/ Analysis Minimum <br /> Analysis Units Method Detection Limit (my/kg) <br /> pH pH units --- <br /> Electrical Conductivity ,umhos/cm --- <br /> Pesticides and PCBs mg/kg 8080 --- <br /> Acid Generation tons CaCO3 --- <br /> Potential (AGP) <br /> Neutralization Potential tons CaCO3 --- <br /> Net AGP tons CaCO3 --- <br /> Moisture Content Percent --- --- <br /> Tributyl Tin mg/kg Per Lab 0.02 <br /> Total Silver mg/kg 6010 1 .0 <br /> Total Arsenic mg/kg 7060/7061 5.0 <br /> Total Cadmium mg/kg 6010 1 .0 <br /> Total Chromium mg/kg 6010 2.0 <br /> Total Copper mg/kg 6010 1.0 <br /> Total Mercury mg/kg 7470 0.02 <br />