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Legend: Applicant = project applicant, City = City of Redwood City Page 46 May 18, 2004 WP9.0164MMMCHT.645 W_.ITORING VERIFIL ATION IDENTIFIED IMPACT RELATED MITIGATION MEASURE Impl. Type of Impl. Monitoring and Timing Signature Date (CONDITION OF APPROVAL) Entity Action Verification Entity Requirements (W SA) for the Marina Shores Village project future City of Redwood City water demand on August 26, 2002. That assessment performance standards, including standards approval pertained to the adequacy and included in the City of Redwood City Urban reliability of the Assessment itself and was not Water Management Plan the City's intended as an approval or disapproval of the recycled water project, and the City's water Marina Shores Village project itself. The W SA conservation program. for the proposed project has determined that the City of Redwood City does not currently Minus substantial evidence that these have sufficient water supply to meet the measures would mitigate this impact- -i.e., projected water demands of the proposed would lead to the identification and project together with those of its existing realization of an adequate additional water customers and the demands of other planned source - -the effectiveness of this mitigation development. Therefore, the anticipated measure is unknown at this time. project - related and cumulative demands for Therefore, until an achievable water supply water service would represent a potentially source is identified, this impact is significant project and cumulative impact considered to be a significant unavoidable impact (i.e., would require City adoption of a Statement of Overriding Considerations). Impact 10 -2: Project - Related and Mitigation 10 -2. Prior to City approval of Applicant/ Purchase sewage City Purchase Cumulative Impacts on Sewage Treatment any tentative map or development City treatment capacity treatment and Transmission Capacity. The project agreement for the proposed project, the City from SBSA, with capacity prior to would increase sewage generation in the of Redwood City shall purchase from the reimbursement tentative map/ project vicinity. Preliminary estimates indicate SBSA the dry weather treatment capacity from applicant. development that the project could generate a total of necessary to accommodate the projected Upgrade sewage agreement approximately 420,000 gallons of sewage per net increase in sewage generated by the transmission approval; day, for a net increase of approximately proposed project. The project's ultimate capacity, as upgrade 340,000 gallons per day. Redwood City treatment capacity requirement shall be identified in transmission already uses all of its allocated capacity from calculated in the final permitting stage. The mitigation measure. capacity prior to the South Bayside System Authority (SBSA) project applicant shall reimburse the City for final design for treatment plant, but possesses an option to all costs associated with the purchase of construction purchase an additional 2.1 million gallons per this treatment capacity (e.g., the capacity documents day (mgd) of dry weather treatment capacity. option itself, and associated administrative Because the SBSA treatment capacity costs), the procedural details of which shall allocation to Redwood City is already being be included in a development agreement for exceeded, the current allocation is inadequate the project. to serve the project's projected demand in addition to existing SBSA commitments. In order to mitigate the limited transmission capacity from the project site to the SBSA In recent years, sewage flow into the SBSA treatment plant, the project applicant will be sewage collection system from Redwood City required to upgrade the influent lifting station has occasionally exceeded the current peak (I LS) at the treatment plant and upgrade the wet weather flow capacity right (exclusive of treatment plant itself as necessary, as well Redwood Shores) of 25.9 mgd. Since 1994- as implement one of the following design Legend: Applicant = project applicant, City = City of Redwood City Page 46 May 18, 2004 WP9.0164MMMCHT.645