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HomeMy WebLinkAbout07.a.2) Written Announcements�a.z) Board Meeting of May 5, 2011 Written Announcements: Project Related Updates a) Announce Advertisement of Sewer TV Inspection Project, Phase 2 (DP 5948) Phase 1 of the TV Inspection of Sanitary Sewers completed a condition assessment for approximately 7.5 million feet of District sewers in accordance with industry standard practices. The results were utilized in developing the District's current sewer renovation strategy. Re- inspection will enable staff to evaluate the rate of deterioration over time and establish a practical TV inspection frequency. The results will also help to effectively utilize cleaning crews and meet the intent of the Sewer Maintenance Management Plan with respect to asset condition assessment. TV Inspection of Sanitary Sewers, Phase 2 will be advertised for bids on May 9, and May 16, 2011 with bid opening on May 23, 2011. The position paper for award is scheduled for June 2, 2011. b) Announce Advertisement of the Treatment Plant Piping Renovations, Phase 6 (DP 7288) Phase 6 of the Treatment Plant Piping Renovations Project will include previously identified piping and equipment renovations and replacement work not included in a construction project. This phase will also include piping renovations, such as the air supply pipelines and aeration air diffuser assemblies in pre aeration tanks, primary tank distribution channels, and primary tank effluent channels. This piping work had been part of the 4t" and 5t" Piping Renovations Projects, but was delayed until aeration tank piping work could be completed. This work will be coordinated with Operations staff and will not hinder the operation of the treatment plant. Advertising will occur on May 6 and 11, 2011 and plan to request award of this project at the June 16, 2011 Board Meeting. The engineer's construction cost estimate is $1,300,000. Construction of the project should be completed by June 2012. Written Announcements May 5, 2011 Page 2 of 4 c) Announce Advertisement of Public Bidding for Lafayette Sewer Renovations, Phase 7 (DP 5990) The Lafayette Pleasant Hill Road Trunk Sewer project is part of the Collection System Renovation Program. The project will consist of installing, replacing, and rehabilitating approximately 14,000 feet of 6- to 15 -inch sewer pipe. The construction will take place within neighborhood streets and property easements in the City of Lafayette. The work will involve open cut, pipe bursting, and cured - in -place construction methods. This project will be advertised on May 9 and May 16, 2011. The bids will be opened on May 26, 2011. The construction cost is currently estimated at $2,000,000. More information will be presented when the Board is asked to approve the construction contract on June 16, 2011. d) Lafayette Sewer Renovations, Phase 7 (DP 5990) - Public Workshop The District will host a public workshop on Thursday, May 5 from 7:00 to 8:00 p.m. in the Lafayette Community Center's Elderberry Room (St. Mary's Road). The project will replace /rehabilitate approximately 14,000 feet of 6 -, 8 -, 12 -, and 15 -inch sewer pipe at several different sites in Lafayette using open cut, pipe - bursting, and CIPP methods. Staff has already spoken to 17 residents who will be affected by easement work on their property. e) Walnut Creek Sewer Renovation Project, Phase 8 (DP 5992) - Public Workshop The District will host a public workshop on Thursday, May 12 from 7:00 to 8:00 p.m. at Parkmead Elementary School in the Walnut Creek (1920 Magnolia Way). The project will replace /rehabilitate approximately 10,000 feet of 6- and 8 -inch sewer pipe at several different sites in Walnut Creek and Clyde using open cut and pipe- bursting methods. Staff is in the process of discussing impacts with residents who will be affected by easement work on their property. Written Announcements May 5, 2011 Page 3 of 4 General Updates f) Request for Quotations (RFQ) — Furniture for New CSOD Administration Facility On April 27, 2011, an RFQ was posted on BidSync (the District's on -line bidding system) for the purchase and installation of furniture for the new CSOD Administration Facility. At the May 15, 2007 Special Board meeting the CSO project costs were reviewed in detail, staff informed the Board that the project costs included a furniture allowance of $280,000 for the new CSOD facility. The furniture was not included in the construction bid because it was determined that it could be purchased more cost effectively directly from the vendors so that contractor markups for overhead and profit could be avoided. Staff is pleased to report that the current estimate for the furniture and installation, which includes office partitions for bull -pen areas, individual office furniture and conference and crew room furniture, is $175,000. Purchasing staff has worked closely with CSO and engineering staff to develop the RFQ and quotations are due to Purchasing on May 27, 2011. This information is provided for Board information, Board action is not required. g) Service Contract for Cleaning Siphons Staff conducted an RFQ for siphon cleaning and contracted with Roto Rooter (estimated $49,000) and Veolias (estimated $56,000) for sewer siphon cleaning and inspection at selected sewer siphon locations. Roto Rooter will be using methods demonstrated in 2009 to effectively clean and inspect sewer siphons. The Veolias contract will be piloting a "Wayne- ball" cleaning method. h) Service Contract for Crown Spraying In 2008, staff conducted an RFQ for comprehensive sanitary sewer maintenance and repair work and subsequently entered a contract with Veolias (estimated $394,000). Staff recently negotiated updated pricing for sewer crown spraying, cleaning and inspection items (estimated $132,000) for the contract; and said activities will be performed at selected concrete trunk sewer locations totaling about 10,000 feet. The crown spraying will apply magnesium hydroxide to concrete sewer pipes subjected to heavy hydrogen sulfide, which results in corrosion of the pipe. Lines will be pre - cleaned with high - pressure hydro flush to remove loose material prior to the application of magnesium hydroxide. Selected pipes will be pre - televised and post - televised to ensure adequate coverage within the pipe. Crown spraying is annual work and is part of the budget for this fiscal year. Written Announcements May 5, 2011 Page 4 of 4 i) CCCSD Moraga Pumping Station Show Cause Letter and Follow up On March 25, 2011, CCCSD received a notification of Potential Filing of an Administrative Enforcement Order from the Contra Costa Health Services Hazardous Materials Programs. The letter requested that CCCSD show cause, within two weeks, why we should not be subject to an enforcement order and associated fines for an improper discharge of hazardous materials. In researching the matter it was learned that pumping station staff had disposed of approximately 700 gallons of used antifreeze by discharging it into the wet well at the Moraga Pumping Station on November 27, 2005. This was done with the knowledge and permission of treatment plant staff who believed the discharge to be benign with no potential for plant upset or pass- through to the environment. This information was conveyed to the County in a letter dated April 7, 2011. In a follow -up letter from the County on April 14, 2011, the County requested additional information on hazardous materials handling at ten other District pumping stations. This information is being gathered and a response is being prepared. District staff will keep the Board updated as this matter develops.