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MONITORING AND REPORTING PROGRAM ORDER NO R5-2015-.0012-0021 <br />4 <br />BOULEVARD AUTOMOTIVE SERVICE <br />SAN JOAQUIN COUNTY <br />Table 1A: Sampling9 Frequency (Prior to Full-Scale Implementation) <br />Well 101 Frequency2 Constituent Suite(s)3 Monitoring Objective <br />MW-1A, MW-3, MW-4 <br />and MW-14 Other8 Suites A and B Treatment Zones <br />MW-9, MW-13, and <br />proposed shallow <br />transition well <br />(Figure 1) <br />Other8 Suites A and B Transition Zone6 <br />MW-5 and MW-12 Other8 Suites A and B Background Zone' <br />MW-7, Chevron Well <br />MW-10 or proposed <br />shallow compliance <br />well (Figure 1) and <br />proposed intermediate <br />compliance zone well <br />(Figure 2) <br />Others Suites A and B Compliance Zone' <br />I Well IDs shown on attached F'gure 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 />s 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 />6 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 />7 Well used to monitor the background natural changes in groundwater geochemistry in areas unaffected by oxidant injection. <br />8 To be sampled prior to startup (baseline). <br />9 All sampling conducted following a 3-well volume purge. <br />Table 1B: Sampline Frequency (During Periods of No Remediation/Progress or Post- <br />Remediation) <br />Well 101 Frequency2 Constituent Suite(s)3 Monitoring Objective <br />MW-1A, MW-3, MW-4 <br />and MW-14 Quarterly4 <br />' <br />6 Suites A and B Evaluation of Treatment <br />MW-9, MW-13, and <br />transition well <br />(Figure 1) <br />proposed shallow Evaluation Quarterly4 <br />' <br />6 Suites A and B of Treatment and <br />Plume Movement <br />MW-5 and MW-12 Quarterly4 <br />' <br />6 Suites A and B Evaluation of Background Conditions <br />MW-7, Chevron Well <br />MW-10 or proposed <br />shallow compliance well Quarterly4,6 <br />(Figure 1) and proposed <br />intermediate compliance <br />zone well (Figure 2) <br />Suites A and B Evaluation of Adverse <br />Migration of Contaminants <br />I Well IDs shown on attached Figure 4 <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 quarterly basis for two quarters following the <br />initial span of the four- tri-weekly injections to determine if breakdown/byproducts of treatment developed. If results do not indicate any <br />development of breakdown/byproducts from treatment, no additional samples will be collected. <br />9 All sampling conducted following a 3-well volume purge.