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MONITORING AND REPORTING PROGRAM ORDER NO. R5-2011-XXX 5 <br /> FERNANDO'S-STOCKTON <br /> SAN JOAQUIN COUNTY <br /> Table 2: Analytical Methods <br /> Constituent Method' Maximum Practical Quantitation Frequency <br /> Quantitation Limit(pg/L) <br /> Suite A <br /> TPHg GC/MS 50 As indicated in <br /> BTEX, DCA EPA 8260B 0.50 Table 1 <br /> Suite B <br /> Metals, dissolved EPA 200.7/200.8' 2.0 <br /> Total Chromium EPA 200.8/218.6' 10 <br /> Hexavalent Chromium EPA 7199/218.6' 2.0 <br /> Anions° EPA 300.1' 100 As indicated in <br /> pH/EC EPA 150.1/120.1' 1-14pH units Table 1 <br /> Ammonia EPA 350.1' 100 <br /> COD EPA 410.4 10,000 <br /> Alkalinity EPA 310.1 5,000 <br /> TDS EPA 160.1' 10,000 <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 an estimated value(J flag). <br /> ' Dissolved metal analyses include Al.As, Be, Be, Br,Ca, Cd,Cr,Co,Cu, Fe, K, Hg, Mg,Mn,Mo, Ni,Ag, Na, Pb,Sb,TI,V,W, and Zn and <br /> are collected in laboratory-supplied non-preserved container, relinquished to the lab for filtering and preservation prior to analyses. <br /> Anions include:acetate,bromide,bromate,nitrogen,nitrite,suffate,sulfide,orthophosphate,chlorine,and flouride. <br /> FIELD SAMPLING <br /> 3. In addition to the above sampling and analysis, groundwater elevation, electrical <br /> conductivity, DO, ORP, pH, and water temperature will be measured in the field each time a <br /> monitoring well is sampled. The sampling and analysis of field parameters is specified in <br /> Table 3. <br /> Table 3: Field Sampling Requirements <br /> Parameters Units Type of Sample <br /> Groundwater Elevation Feet, NAVD 88 Measurement <br /> Water Temperature Degrees Celsius Measurement <br /> Electrical Conductivity uhmos/cm Measurement <br /> Dissolved Oxygen/ORP mg/L and % Measurement <br /> pH pH Units(to 0.1 units) Measurement <br /> An ozone detection meter (field test instrument) will be used periodically in the breathing <br /> zones inside the remediation equipment area and at each injection wellhead during <br /> maintenance and monitoring field activities. Field test instruments (such as those used to <br /> test pH and dissolved oxygen) may be used provided that: <br /> 1. The operator is trained in proper use and maintenance of the instruments; <br />