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Project 139 - Proposal - Hamers - 1994-08-25 5) ROBIN B. HAMERS 234E 17TH ST SUITE 205 & ASSOCIATES, INC. COSTA MESA, CA 92627 CIVIL ENGINEERS PLANNERS SURVEYORS p14)54B-1192 August 25 1994 Board of Directors Costa Mesa-Sanitary District P 0 Box 1200 Costa Mesa CA 92628 RE PROPOSAL TO BEGIN DESIGN PHASE PROJECT 1112100-139 CONGRESS PUMP STATION ABANDONMENT Gentlemen Enclosed please find a proposal to begin the design phase of subject project as included in the 1994-95 Capital Improvement Program Included as an explanation of the project is an excerpt from the 1994-95 Capital Improvement Program Report which fully describes the project Also included is Boyle Engineering's independent analysis of the project and its costs It is proposed to complete the design phase of subject project at the following hourly rates not to exceed $30 000 including the cost of soils engineering and structural engineering Engineer $ 59 00/hr 2 man survey crew $ 150 00/hr 3 man survey crew $ 170 00/hr Please note that billing will be only for actual time worked Sincerely i /144'14) Robin B Hamers RBH/jp/proposal cms .. C: Printed on Recycled Paper „ ~ 1 • Project 1112100-139 Congress Pump Station Abandonment In 1989 the District prepared a report entitled West Side Pumping Station Abandonment Study Project 1112100-101 which developed a master plan for the eventual abandonment of—seven__pump_in.g stations—in wet sside Costa—Mesa th\ou"gh-the construct,i_on of a network—of gravity—sewer—Pines.. When the seven stations—were originally constructed there was no master plan that could have alleviated the need for so many stations The study identified seven CMSD pumping stations and one City of Newport Beach station that could be combined at the Newport Beach station into one larger station This station pumps across the Hamilton Street bridge into Orange County Sanitation District facilities in Huntington Beach By eliminating the pumping stations there is a long term cost savings benefit for electricity repair and maintenance but more importantly the master plan concept redirects the CMSD flow to a westerly direction rather than the current easterly direction through sewers in Wilson Street and Hamilton Street Without the redirection the sewers in Wilson Street and Hamilton Street will need to be upsized After the study was completed additional discussions were held with Orange County Sanitation District who agreed in concept to construct a new siphon under the Santa Ana River and a new gravity system along the westerly prolongation of 19th Street This would allow the seven CMSD and one Newport Beach station to be abandoned and would also alleviate the need for a future pumping station in the eventual Banning Ranch development The Congress Pump Station abandonment represents the second project of the overall abandonment program The initial project was the installation of a dry sewer line through Canyon Park which was constructed during the City s park improvement project Congress Pump Station will be abandoned by constructing new gravity sewers flowing towards Canyon Pump Station which will remain in operation until the final stages of the abandonment program The current flow from Congress Pump Station is small enough that it will not cause the Canyon Pumping Station and downstream gravity system any adverse effects y7 An estimate of the project costs is as follows Design $ 30 000 Construction 300 000 Inspection 30 000 Reserve or Contingency 45 000 TOTAL $ 405 000 Boyle Engineering Corporation con sunino er.p nears arcnItects 750 third Sir 714 475-3300 C Sim J( FAX 714 2 7 4j 'V. vport be cn, C." .,[558-5020 Telex 6/'355&7 TRRflSPORTRTIOrI SERVICES Mr Robin Hamers, District Manager/Engineer July 7 1994 COSTA MESA SANITARY DISTRICT P O Box 1200 Costa Mesa, CA 92628-1200 1994-95 Capital Improvement Program (CIP) Review I have completed my review of the Costa Mesa Sanitary District(District) s CIP report for the 1994-95 fiscal year The review consisted of reading the project descriptions, telephone conversations with District staff (Robin Hamers) and an independent analysis of construction costs, design and construction engineering costs, and contingency costs. The following represents my analysis of each of the CIP projects: This is the third independent review of the District s CIP program. 1992 93 being the first year reviewed. The 1994-95 proposed improvement projects appear warranted and the report continues to properly reflect the on-going capital improvement program. Project 1112100-139 Congress Pump Station Abandonment This is the second of several projects to eliminate pump stations. Based on discussions with staff approximately 1300-feet of 12 inch sewer will be constructed. Project will abandon the existing pump station, and will include new manholes as well as revamp of several others. For budget purposes the estimated design/construction cost and contingency cost appears reasonable. It is suggested that future and similar projects include a location/vicinity map, estimated footage of pipe to be placed and other appropriate items (major). Project 112100-140 Reconstructing Various Sewer Line This project is similar to previous years projects and is in keeping with the Districts rehab and maintenance program. Previous years projects were Nos. 122, 126 & 132.