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HomeMy WebLinkAboutAgenda Report - April 7, 2021 C-06AGENDA ITEM CITY OF LODI COUNCIL COMMUNICATION TM AGENDA TITLE: Approve Plans and Specifications and Authorize Advertisement for Bids for Stormwater Trash Collection Project — Phase 2 (2021) MEETING DATE: April 7, 2021 PREPARED BY: Public Works Director RECOMMENDED ACTION: Approve plans and specifications and authorize advertisement for bids for Stormwater Trash Collection Project — Phase 2 (2021). BACKGROUND INFORMATION: The City is permitted by the State Water Board to discharge stormwater into the Mokelumne River under the statewide general permit for small municipal storm sewer systems (referred to as MS4s). The State has mandated that all trash (items as small as a cigarette) be collected prior to discharging to rivers or streams, and has specified a compliance deadline of December 2030. Trash that blows out of overfilled garbage cans (or littered) gets washed into our storm drain system and discharged into the river if it is not captured prior. Approximately one-third of the City's storm drainage system ends up discharging into the Mokelumne River. Staff anticipates a total of 10 phases in order to comply with the State's requirement with one phase constructed so far. Staff is generally prioritizing locations by high risk land uses (as required by the State), size of outfall, and size of drainage area. The second phase is proposed to cover the 140 -acre drainage area of Outfall No. 4. The total cost of this program is estimated at $6.5 million, over the next 10 years and is included in the Wastewater Enterprise Financial Plan. The project will install a trash capture device upstream of the Outfall No. 4 discharge point, as shown on Exhibit A. The device will be approximately 11 feet in diameter and 18 feet in depth, with only a manhole opening visible at the surface. The specifications are on file in the Public Works Department. The planned bid opening date is May 5, 2021. The project estimate is $350,000. FISCAL IMPACT: This project will slightly increase annual storm drainage maintenance costs for the trash capture device. FUNDING AVAILABLE: Funding will be identified at project award. c'r`—'1 ,Q Charles E. Swimley, Jr. Public Works Director Prepared by Alice Bernardino, Assistant Engineer CES/AB/tc Attachment cc: Sean Nathan, Senior Civil Engineer Andrew Richle, Utility Superintendent APPROVED: V Stephe chwabau Manager K:\WP\PROJECTS\STORMDRN1Stormwater Trash Collection Project - Phase 2 (2021)\CPSA.doc 3/24/2021 Exhibit A Stormwater Trash Collection Project Phase 2 (2021) Capture Device Location ® Outfall No. 4 Drainage Area n O ()Tur5nerRd. 00 w 0 Y �O fq , 0 250 500 1,000 Feet d St I : Lockefor victor R d. HWY 12j PT -n m 00