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HomeMy WebLinkAboutAgenda Report - September 19, 1984 (93)0 BLACK & VEATCH ENGINEERS —ARCHITECTS TEL. (4151944-5770 Proposal for Engineering Services to Prepare a Wastewater Treatment Plant Expansion Schedule Report City of Lodi 221 West Pine Street Lodi, CA 95240 Attention: tar. Jack L. Ronsko Gentlemen: 3470 BUSKIRK AVENUE MAILING ADDRESS: P.O. BOX NO. 4247 WALNUT CREEK. CALIFORNMA 94596 B & V Project 00003.51-16 July 24, 1984 We are pleased to present this letter proposal to prepare a wastewater treatment plant expansion schedule report in accordance with the standard provisions B.5 of the NPDES permit for White Slough. We propose to do this work on a time and mzterials basis not to exceed $2,800. A letter report for submission to the State by the City will be prepared to address the three specific items of the standard provision. The contents of the report will be based upon the basic data developed by the White Slough staff, with additional evaluation of the expansion date based upon plant performance. In addition, we will develop a preliminary project budget and the scope of any additional study that should be initiated in the near future to maintain the project schedule. We have also included time to present the report to the City staff and/or council. If you have any questions regarding our proposal, please contact me at your convenience. Very truly yours, BLACK S C /David 'A. Requa/ er RECEIVED JUL 2 5 1984 CITY OF LODI FWLIC WORKS DEPARTMENT MEMORANDUM, City of Lodi, Public Works Department TO: City Manager FROM: Pubiic Works Director DATE: August 31, 1984 SUBJECT: Wastewater Treatment Plant Expansion S� edule Report The requirements of the City's Wastewater Discharge Permit for the White Slough Treatment Facility requires that we submit a report to the California Regional Water Quality Control Board at such time that our treatment facility reaches 75% capacity. This report must include such items as population and flow projections, establishment of an expansion program including a prelim- inary project budget, an outline of the additional specific studies and engineering which must be accomplished and when. Attached is Section B-5 of the Standard Provisions made part of our discharge permit which :over this reporting requirement. Attached for general information is a population and flow projection which has been formulated by the White Slough Lab staff. The population projection was obtained from the Community Development Department. it is felt that this is a conservative projection since it does not include any possible effect of Measure A. The wastewater flow is based on a 120 gallon per capita per day usage. Based on these projections, the yearly average flow of the plant will reach our design capacity of 5.8 million gallons per day somewhere around the year 1993• Our calculations show that at a yearly average flow of 5.4 mgd, we will experience approximately 20 days where the actual flow is over the design capacity of 5.8. Where the yearly average is 5.6, there will be 70-90 days where the flow is over the design capacity of 5.8. Therefore, based on the projections shown on the attached exhibit, we will have to look at a plant expansion sometime prior to 1993• it is felt that the City cannot be too conserva-ive in the planning of an expansion at our White Slough Treatment Facility. The financing of future expansions is going to become more critical due to the changes in the State and Federal Grant Guidelines. Grants are no longer being given to provide for plant expansions which are needed because of normal growth. These types of expansions will have to be fully funded by the local agency. Therefore, if money is going to have to be set aside, we should be looking at the project planning and funding requirements now. It is, therefore, recommended that $2800 be allocated for the purpose of having the firm of Black b Veatch prepare the required Wastewater Treatment Plant Expansion Schedule Report in conformance with their attached proposal letter of Jul 4, 1984. A Special Allocation Request is attached. eI L.Ronsko I Works Director J Attachments cc: Water/Vastewater Superintendent �CITY�� OF • r7%a SPECIAL ALL=REQUEST TO: Finance Director City Manager Date: 8/11/84 i FROM: Pub] is Works Di rer_tor Account Number:t,- Request is made for funds to accomplish the Following which was not included in the current budget: PROJECT DESCRIPTION & JUSTIFICATION Wastewater Treatment Plant Expansion Schedule Report Recommend that funds be allocated for purpose of having Black b Veatch prepare above report per attached proposal letter. See attached memo. FUND OR ACCOUNT TO BE CHARGED ESTIMATED COST $2800.00 Current Budget S Prior Year Reserve $ Contingent Fund $ General Fund Surplus $ Capital Outlay Reserve S Reimbursable count $ 1L � Utility Outloy Reserve S /?EsE72tiE Fun./) $ X800• ` of er i APPROVALS Fund Verification Approval Finance Di City Manager dote 0 City Council Amount Approved $ J Submit this form in triplicate.