Laserfiche WebLink
CALIFORNIA REGIONAL WATER QUALITY CONTROL BOARD <br /> CENTRAL VALLEY REGION <br /> MONITORING AND REPORTING PROGRAM NO. 92- <br /> NPDES NO. CA0082911 <br /> FOR <br /> CITY OF STOCKTON <br /> AUSTIN ROAD LANDFILL <br /> GROUND WATER TREATMENT SYSTEM AND STORM WATER DISCHARGE <br /> SAN JOAQUIN COUNTY <br /> INFLUENT MONITORING <br /> Influent samples shall be collected after the last connection before the wastes <br /> enter the treatment process. Influent samples shall be representative of the <br /> volume and nature of the influent. Time of collection of a grab sample shall be <br /> recorded. The following shall constitute the influent monitoring program: <br /> Sampling <br /> Constituents Units Tvpe of Samale Frequency <br /> Flow mgd -- Continuous <br /> pH pH units Grab Weekly <br /> Specific µmhos/cm Grab Weekly <br /> Conductivity <br /> EPA Method 601 µg/l Grab Semi-annually <br /> ICAP (Metals Scan) mg/l Grab Annually <br /> EFFLUENT MONITORING <br /> Effluent samples shall be collected at the discharge from a manhole prior to <br /> being discharged into Littlejohns Creek. Effluent samples shall be repre- <br /> sentative of the volume and quality of the discharge. Time of collection of <br /> samples shall be recorded. Effluent monitoring shall include the following: <br /> Sampling <br /> Constituents Units Type of Sample Frequency <br /> pH pH units Grab Weekly <br /> Specific µmhos/cm Grab Weekly <br /> Conductivity <br /> 20°C BODS mg/l , lbs/day Grab Quarterly2 <br /> Suspended Solids mg/1 , lbs/day Grab Quarterly2 <br /> EPA Method 601 µg/l Grab Monthly'°3 <br /> ICAP (Metals Scan) mg/l Grab Annually <br /> 1) Analyses with a monthly sampling frequency shall be conducted weekly for <br /> four consecutive weeks, and monthly thereafter following initial discharge to <br /> Littlejohns Creek. 2) Analyses with a quarterly sampling frequency shall be <br />