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it <br /> a <br /> MONITORING AND REPORTING PROGRAM ORDER NO , R5-2008-0149-XXX 5 <br /> APACHE PLASTICS (Former) <br /> SAN JOAQUIN COUNTY <br /> Constituent Method Maximum Practical z Frequency <br /> Quantitation Limit (Ng/L) <br /> BTEX , MTBE, TAME, Table 1 <br /> DIPE , ETBE , TBA, 1 ,2- EPA 8260B 0.5 -10 <br /> DCA, EDB <br /> Suite B <br /> Metals, dissolved3 EPA 200.7/200.8 0,025 - 500 <br /> Hexavalent Chromium EPA 218.6 0.2 As indicated in <br /> Anions" EPA 300. 1 5-1000 Table 1 <br /> Ammonia as N EPA E350. 1 100 <br /> TDS EPA SM250C 10 <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 /> 3 Dissolved metal analyses include Al, As, Ba, Be, Ca, Cd, Cr, Co, Cu, Fe, Hg, Mg, Mn, Mo, Ni, Na, Pb, Sb, Tl, V, W, and Zn and are <br /> collected in laboratory-supplied non-preserved container, relinquished to the lab for filtering and preservation prior to analyses. <br /> ° Anions include bromide, bromate, chloride, nitrate, nitrate as N, nitrite as N, and sulfate <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, North American Vertical Measurement& <br /> Datum 88 Calculation <br /> Water Temperature Degrees Celsius Grab <br /> Electrical Conductivity uhmos/cm Grab <br /> Dissolved Oxygen mg/L Grab <br /> pH pH Units (to 0. 1 units) Grab <br /> Field test instruments (such as those used to test pH and dissolved oxygen) may be used <br /> provided that: <br /> 1 . The operator is trained in proper use and maintenance of the instruments ; <br /> 2 . The instruments are calibrated prior to each monitoring event; <br /> 3 . Instruments are serviced and/or calibrated by the manufacturer at the recommended <br /> frequency ; and <br /> 4 . Field calibration reports are submitted as described in item (b) of the `Reporting" section <br /> of this MRP . <br />