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I <br /> MONITORING AND REPORTING PROGRAM ORDER NO. R5-2008-0149-017 4 <br /> WESTREC PROPERTIES / PS MARINAS 5 <br /> SAN JOAQUIN COUNTY <br /> ' Well numbers as shown on Figure Al . <br /> 2 i.e., weekly, monthly, quarterly, annually, other. <br /> 3 Constituent suite components listed in Table 2. <br /> ° Wells used to determine compliance with water groundwater limitations. <br /> 5 Wells sampled to evaluate in-situ bioremediation progress inside the treatment zone. <br /> 6 Wells sampled to evaluate migration of pollutants within the treatment zone. <br /> Wells used to develop background concentrations. <br /> Table 2: Analytical Methods <br /> Maximum Practical <br /> Constituent Method' Quantitation Limit Frequency <br /> (pg/L)2 <br /> Suite A <br /> TPHg GC/MS 50 <br /> As indicated in <br /> BTEX, MTBE, TBA EPA 8260B 0.50 (1 .0 for total Table 1 <br /> xylenes, 5.0 for TBA) <br /> Suite B <br /> Metals, dissolved" EPA 6010B 2.0 Seven times <br /> Total Chromium EPA 200.7' or 200.8' 10 Seven times <br /> Hexavalent Chromium EPA 7199 2.0 Seven times <br /> Bromide EPA 300.0 100 Seven times <br /> Bromate EPA 300 . 1 10 Seven times3 <br /> ' Or an equivalent EPA Method that achieves the maximum Practical Quantitation Limit, <br /> 2 All concentrations between the Method Detection Limit and the Practical Quantitation Limit shall be reported as <br /> an estimated value. <br /> 3 Will be sampled seven times: one baseline sample prior to remediation and monthly samples during the six <br /> month pilot test <br /> 4 Metals include barium cadmium, calcium, copper, lead, magnesium, manganese, mercury, molybdenum, and <br /> nickel. <br /> FIELD SAMPLING <br /> 3. In addition to the above sampling and analysis, groundwater elevation , electrical <br /> conductivity, DO , pH , and water temperature will be measured and analyzed in the field <br /> during the semi-annual groundwater sampling activities each time a monitoring well is <br /> sampled . The sampling and analysis of field parameters is specified in Table 3 . <br /> Table 3 : Field Sampling Requirements <br /> Parameters Units Type of Sample <br /> Groundwater Elevation Feet, Mean Sea Level Measurement <br /> Water Temperature Degrees Celsius Grab <br /> Electrical Conductivity uhmos/cm Grab <br /> Dissolved Oxygen mg/L Down hole <br /> pH pH Units (to 0. 1 units) Grab <br />