ARCHIVED REPORTS XR0012581 - Laserfiche WebLink

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Station No. 502, 35 N. Cherokee Lane, Lodi, - Interim Remediation Plan _ The influent level at the conclusion of the initial phase of remediation was less than 3,000 PPM. Consequently, the above rates are higher than what we actually expect to encounters and emission Deactivation When soil vapor levels have been reduced to an system will be given a final acceptable level, the ,t;onitoring and then deactivated. The above ground components of the system including the catalytic incinerator, the Pump, accumulator, fence and propane trap wagon will be rqm.+..� site. The underground piping and �nir-+4 - + cram the be used for a;;J Potential future re '�V1p will remain in place and could mediation, if necessary. PROJECT MANAGEMENT ARID REPORTING Project Macagement will coordinate the system. results, implement coaplimonitoring, review the ance control, and submit summary reports to Ultramar. Project Management will also submit routine reports on the operation as required by the Air Pollution Control District. The project management function, w?]1 be overseen by an EVAX Project Engineer,. PUBLIC HEALTH RISK R screening level assessment , of the public health risk due to the •� emission of benzene prom the incinerator was undertaken using the ARB version of the dispersion model PTPLU. benzene concentration modeled by PTpLUsas convertedaximuin ne ntou excess d-level risk using the procedures outlined in 'the CAPCOA Air Toxics Assessment ' a Manual. These procedures are quite Conservative in nature c cancer overstate the actual risk by a large margin. r9 rg and tend to I The maximum b3nzene emission rates were risk screened usicg the. risk t criteria developed by the San Francisco Bay Vea Air Quality Managemen - District {BAAQIiD). The BA,R.Q�+D generally considers projects with a cancer s risk between I to 10 case, per million population to be acceptable, t part, if the operation is short-term and involves a. T-BACT emissions control device. The risk assessment was based an an analysis since benzene has the highesof the benzene emissions t cancer risk factor of the typical constituents of gasoline. The ratio of benzene to tat; t. this emissions assessment is t ' 1 hydrocarbons in Ypical of that found in gasoline. a.�. It was determined that the exce,;s 1 ifetime cancer risk, associated with a benzene emission rate of o.zo lbs/day was .,less than 3 cases er mi]1 population based on a continuous 70 year operation. 7hIs figure is �°n ,1 -------------- 8 -. e •