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<br />~--,::_::;_._>;-' <br /> <br />GE.I <br />-'"c.,- E~f.r~Rment inc. <br />www.~enen.<lronmtl\t.com <br /> <br />'95 Glenn Way. Suite 250 <br />San Carlos. CA 9-1070 <br />T 'SM08.80I8 <br />f '50.508.8176 <br /> <br />ENVIRONMENTAL CONSULTING SERVICES <br /> <br />PROJECT APPROVAL FORM <br /> <br />Date: December 26, 2007 <br /> <br />Project #: R07422 <br /> <br />Client: City of Redwood City <br />Mr. Brian Lee <br /> <br />1017 Middlefield Rd. <br />Redwood City, CA 94063 <br /> <br />Re: Monitoring and Reporting for NPDES Permit Compliance for Groundwater <br />Treatment System for City's Underground Parking Facility at 850 Jefferson <br />Avenue~ Redwood City, CA <br /> <br />Introduction <br /> <br />The site known as "On Broadway" in Redwood City, California includes a parking garage with <br />two below grade parking levels. The garage is dewatered by a permanently installed <br />groundwater extraction system and volatile organic compounds (VOCs) in the groundwater are <br />removed by a carbon filtration system before the groundwater is discharged to the storm sewer <br />system. The discharge is permitted by the Regional Water Quality Control Board (RWQCB). <br />The permit requires periodic monitoring and quarterly reporting. <br /> <br />Proiect Scope <br /> <br />Task 1: Monthly Monitoring and Quarterly Reporting <br />GEl will conduct monitoring of the treatment system from January 2008 through December <br />2008. GEl will collect groundwater samples for subsequent laboratory analyses as per the table <br />below. <br /> <br />GEl will prepare a draft Qua11erly Monitoring Report as per NPDES permit requirements, for the <br />City's review, prior to rep0l1 finalization and submittal to the RWQCB. The rep0l1 will be <br />uploaded to Geotracker in pdf format. GEl will provide a pdf version of each final report to the <br />City. Each report will include a letter of transmittal, a compliance evaluation summary, a <br />location map, the results of analyses and observations, data on flow and mass removed, and <br />operational status. The fourth qua11er repo11 will be an Annual Report covering the previous <br />calendar year. In addition to the qual1erly repo11 requirements, the annual rep0l1 will contain a <br />comprehensive discussion of the compliance record and any corrective actions necessary. <br />