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MONITORING AND REPORTING PROGRAM ORDER NO. R5-2008-0149-010 4 <br /> PARKINSON'S HAMMER 1-5 ARCO <br /> SAN JOAQUIN COUNTY <br /> Table 1A: Samplings Frequency(During 90-Day 03/1-12O2 Pilot-Scale Testing) <br /> Well ID Frequency2 Constituent Suite(s)3 Monitoring Objective <br /> MW-3 Every 3 weeks8 Suites A and B Background <br /> MW-1,MW-2,MW-5 Every 3 weeks Suites A and B Treatment Zones <br /> MW-4 Every 3 weeks8 Suites A and B Transition Zone <br /> MW-7 Every 3 weeks8 Suites A and B Compliance° <br /> Well IDs shown on attached Figure 3 <br /> 2 i.e.,weekly,monthly,quarterly,annually,other <br /> 3Constituent 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 /> ° Wells used to evaluate in-situ bioremediation progress inside the treatment zone,to gauge effectiveness of 03/1-12O2 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 /> r 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),during weeks 3,6,9,and 12 of the testing,and following completion of the testing(post-test). <br /> ° Al sampling conducted following a 3-well volume purge. <br /> Table 1B: Sampling6,7 Frequency (During Periods of No Remediation/Post- <br /> Remediation) <br /> Well ID Frequency2 Constituent Suites) Monitoring Objective <br /> MW-1,MW-2,MW-5, Semi-Annually° Suite A NA <br /> MW-7,new wells <br /> MW-3,MW-4,MW-6, Bi-Annually5 Suite A NA <br /> Well IDs shown on attached Figure 3 <br /> 2 i.e.,weekly,monthly,quarterly,annually,other <br /> ° Constituent suite components listed in Table 2 <br /> 4 Wells to be monitored for depth to water, presence of free product,and purge sampled on a semi-annual basis during the 2n°and 4'" <br /> quarters of each calendar year. <br /> ° Wells to be monitored for depth to water,presence of free product,and purge sampled on a bi-annual basis during the 2n°quarters of every <br /> second calendar year(during 20 2011,20 2013,20 2015...) <br /> ° All sampling conducted following a 3-well volume purge. <br /> rlverse Vft gualityi i s _ he i 'ec io f n se elk will d <br /> reported ouanerty for the Infection permit constituents of concern In Suite 8 as identified during the Allot study until baseline is reach d Formatted:Font:8 pt <br /> epo <br /> Findino 3.oaae 2.oaraoraph 2 above <br /> Table 2: Analytical Methods <br /> Constituent Method' Maximum Practical <br /> Quantitation Limit(pg/L)Z Frequency <br /> Suite A <br /> TPHg GC/MS 50 As indicated in <br /> BTEX°,MTBE,TBA EPA 8260B 0.50 (except 5.0 for TBA) Table 1 <br /> Suite B As indicated in <br /> Metals,dissolved3 EPA 6010B/6020' 2.0 Table 1 <br /> Total Chromium EPA 200.8/218.6' 10 <br /> Hexavalent Chromium EPA 7199/218.6' 2.0 <br /> Bromide EPA 300.0' 100 <br /> Bromate EPA 300.0/317.0' 10 <br />