10-21-11 BPU RPT 06 - Laserfiche WebLink

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L3W& RIVERSIDE PUBLIC UTILI'T`IES Beard Memorandum P U B L I C U T I L I fi I E S BOARD OF PUBLIC UTILITIES DATE: October 21, 2011 ITEM NO: 6 SUBJECT,. RIVERSIDE COUNTY FLOOD CONTROL AND WATER CONSERVATION DISTRICT FUNDING AGREEMENT FOR MOCKINGBIRD CANYON LAKE DREDGING ISSUE: That the Board of Public Utilities consider approval of a Funding Agreement with Riverside County Flood Control and Water Conservation District (District) for the dredging of Mockingbird Canyon Lake. RECOMMENDATION: That the Board of Public Utilities recommend that the City Council approve the Funding Agreement with Riverside County Flood Control and Water Conservation District for the dredging of Mockingbird Canyon Lake. BACKGROUND: Mockingbird Canyon Lake (Mockingbird Lake) was constructed by the Gage Canal Company (Gage) in 1913 to capture and utilize storm water flow within the Gage Canal system for irrigation and groundwater recharge. Riverside Public Utilities (RPU) acquired Mockingbird Lake with the acquisition of Gage in 1965, and through Gage, operates the facility. Over time, Mockingbird Lake has accumulated sediments transported during storm events which have reduced its storage capacity. RPU is planning on dredging Mockingbird Lake to increase its storage capacity and enhance its groundwater recharge potential, but has not yet solicited bids for such dredging activities. In anticipation of awarding a contract for such dredging activities, RPU wishes to enter into a Funding Agreement with the District for the cost sharing of dredging activities. The District will benefit from the Mockingbird Lake dredging through enhanced opportunity for groundwater recharge operations both onsite and downstream within the Arlington groundwater basin, and will contribute 50% of the total project cost, not-to-exceed $800,000, Any contract award for dredging activities will be subject to approval by the Board of Public Utilities. FISCAL IMPACT: The total cost for dredging Mockingbird Lake is estimated at $1.6 million. This amount will be offset through the Funding Agreement by which the District will contribute 50% of the total project cost, not-to- exceed $800,040. Sufficient funds are available in the Public Utilities Water Fund, Facilities Rehabilitation Account No, 6230000-470803. Prepared by: Kevin S. Milligan, Public Utilities Assistant General Manager/Water Approved by: David H. Wright, Public Utilities General Manager Approved by: Belinda J. Graham, Assistant City Manager Approved as to form: Gregory P. Priamos, City Attorney