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MONITORING AND REPORTING PROGRAM ORDER NO. R5-2008-0149-XXX 4
<br /> BOULEVARD AUTOMOTIVE SERVICE
<br /> SAN JOAQUIN COUNTY
<br /> ' Well IDs shown on attached Figure 2
<br /> 2 i.e.,weekly,monthly,quarterly,annually,other
<br /> 3 Constituent suite components listed in Table 2 below
<br /> ' Well used to monitor compliance and for the presence of breakdown/byproducts of the treatment migrating beyond the expected treatment
<br /> area
<br /> 5 Wells used to evaluate in-situ bioremediation progress inside the treatment zone,to gauge effectiveness of ISCO injection in reducing the
<br /> dissolved petroleum hydrocarbon concentrations,and to monitor potential changes in groundwater geochemistry that could be attributed
<br /> to the injection of oxidizing agents
<br /> ° Well used to evaluate migration of pollutants within the treatment zone.The transition well may or may not be within the zone of influence.
<br /> ' Well used to monitor the background natural changes in groundwater geochemistry in areas unaffected by oxidant injection.
<br /> ° To be sampled prior to startup(baseline).
<br /> ° All sampling conducted following a 3-well volume purge.
<br /> Table 113: Samplings' 6 Frequency (During Periods of No Remediation/Post-
<br /> Remediation)
<br /> Well 1 )1 Frequent Constituent Suites) Monitoring Objective
<br /> DPE-1, DPE-2, MW-1A, Weekly° Suites A and B N%
<br /> MW-2, MW-4
<br /> ' Well IDs shown on attached Figure 4
<br /> 3 i.e.,weekly,monthly,quarterly,annually,other
<br /> ' Constituent suite components listed in Table 2
<br /> ° Wells to be monitored for depth to water,presence of free product,and purge sampled weekly for a period of one month following the final
<br /> ISCO injection event to determine if breakdown/byproducts of treatment developed. If results do not indicate any development of
<br /> breakdown/byproducts from treatment,no additional samples will be collected.
<br /> ° All sampling conduced following a 3-well volume purge.
<br /> ° Should adverse water quality conditions occur due to the injection of oxidants, then those wells showing impacts will be monitored and
<br /> reported quarterly for the injection permit constituents of concern in Suite B as identified during the pilot study until baseline is reached,per
<br /> Finding 3,page 2,paragraph 2 above
<br /> Table 2: Analytical Methods
<br /> Constituent Method Maximum Practical 2 Frequency
<br /> Quantitation Limit (Ng/L)
<br /> Suite A
<br /> TPH-g GC/MS 50
<br /> As indicated in
<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 /> ' 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 AI, As, Be, Be, Ca, Cd, Cr, Co, Cu, Fe, Hg, Mg, Mn, Mo, Ni, Na, Pb, Sb, TI, 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 /> 4
<br /> Anions include bromide,bromate,chloride,nitrate,nitrate as N,nitrite as N,and sulfate
<br />
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