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DUDEK <br />Table 1. Scope of Work Estimated Costs <br />2245 S. Halladay Street <br />Phase I ESA <br />Dudek Labor <br />$6,120 <br />Other Direct Costs (records searches, environmental lien <br />and activity use limitation search, mileage for site visit) <br />$810 <br />Subtotal <br />Hazardous <br />Labor <br />$6, 930 <br />$2,240 <br />Vendor <br />$525 <br />Other Direct Costs (XRF meter) <br />$350 <br />Subtotal <br />$3,115 <br />PROJECT TOTAL <br />$10,045 <br />Sample Project: 2245 S. Main Street <br />PROJEt, i- SCOPL <br />The property located at 2245 S. Main Street consists of one approximately 0.27-acre parcel of land on <br />APN 403-141-08. According to information reviewed during the preparation of this scope of work, a gas <br />station formerly operated on the site and a release of gasoline was reported in 1988. Impacts to soil <br />and groundwater were reported at the site; monitoring and remediation efforts were performed for <br />several years. By 2019, the underground storage tanks had been removed from the property and the <br />gas station was demolished. The site was granted regulatory closure under the State Water Resource <br />Control Board's Low -Threat Closure Policy in March 2022 with the caveat that if the land use changes, <br />a review of the corrective action is required. <br />The City of Santa Ana currently owns the property. For the purpose of this project scope, Dudek <br />assumes that a land use change to Residential is proposed, which would trigger a corrective action <br />review by the regulatory agency. Although regulatory closure (for commercial use of the property) was <br />granted in March 2022, residual impacts remain at the site, which may exceed regulatory screening <br />levels for residential use. Dudek recommends that a limited Phase II ESA with a human health risk <br />evaluation be performed for the site. <br />Phase II ESA <br />Initial Project Review <br />Dudek will review the existing data for the site to determine an appropriate project approach. According <br />to information reviewed on GeoTracker, concentrations of several volatile organic compounds in soil <br />vapor exceeded regulatory thresholds for residential and commercial land use scenarios. Based on <br />Various Environmental Services Sample Project Budgets <br />3 <br />