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HomeMy WebLinkAboutAGENDA BACKUP 12-06-19790 BOARD OF DURECTORS C-\ NO. VI.OB 2 12/6/79 POSITION PAPER VIA' ROGER J. bOLAN DATE Dec. 4, 1979 General Manager—Chief Engineer SUBJECT AUTHORIZATION TO EXECUTE CONTRACT DOCUMENTS WITH TYPE OF ACTION BROWN AND CALDWELL FOR COMPLETION OF THE STAGE 5B AUTHORIZE EXECUTION PHASE I PROJECT DESIGN OF CONTRACT SUBMITTED BY INITIATING DEPT./DIV. Clark Weddle Engineering BACKGROUND: Completion of the Stage 5B Phase I project is required to provide adequate hydraulic capacity at the water reclamation plant. The current permitted capacity is 35 MGD and the current average dry weather flow is approximately 32.5 MGD. Proceeding with the completion of the design will result in completion of increased hydraulic capacity by summer of 1981. Any delay in design or construction could result in CCCSD exceeding its permitted capacity. Design of the Stage 5B Phase I project as described in the facilities planning documents has never been completed. The design effort by Brown 6 Caldwell stopped in September 1977 after the plans and specifications had been submitted to the State Water Resources Control Board (SWRCB) for review. In the interim since September 1977, the design has been reviewed by both the SWRCB and CCCSD staff. Several items contained in the design have been modified or deleted and several other items have been added as a result of operating experience. Subsequent to approval of the current scope of work for design by the SWRCB, appropriate contract documents have been negotiated with Brown & Caldwell for completion of the design work and provision of office engineering services during construction. The contract documents are: Amendment No. 7 to the January 3, 1974 A reement This document would increase the cost ceiling under the existing agreement for the completion of all design items not modified by the new contract. This work is estimated to be 80-85% complete at this time. The amendment does not provide for any increase in the fixed professional fee: The increased cost ceiling will provide for the escalation of labor and overhead that has occurred since September 1977. The amount of the increase is $55,1+51.98. New Agreement for.Engineering Services This document covers the changes to the Stage 5B Phase I Project that are outside the original scope of work. The detailed design tasks are listed on Exhibit 1. This document also covers office engineering services during the construction phase. The cost ceiling under the new agreement is: Design $161,573.75 Office Engineering 124,582.82 $286,156-57 REVIEWED AND RECOMMENDED FOR BOARD ACTION INITIA-ING DEP / DIV. (n A. a , CLW G. 101 Board of Directors December 4, 1979 Page Two RECOMMENDATION: The District Board of Directors discuss and decide whether or not to hire Brown & Caldwell to complete the plant expansion design and provide other services associated with the Stage 5B Phase I project. MEMORANDUM TO: FROM: SUBJECT: November 26, 1979 Roger J. Dolan, General Manager -Chief Engineer D. G. Niles, Manager, Plant Operations URGENT WATER POLLUTION CONTROL/RECLAMATION PLANT NEED FOR BACKUP SYSTEMS PROVIDED UNDER THE 5B1 PROJECT IV. OB 2 12/6/79 The purpose of this memorandum is to describe the importance of expeditiously proceeding with several of the Water Pollution Control/ Reclamation plant additions that are part of the 5B1 project. The existing Water Pollution Control/Reclamation plant has been operated by the Plant Operations Department for over two years with missing critical backup systems. These backup systems were to have been provided by the 5BI project. Operation of the Water Pollution Control/Reclamation plant, without these backup systems, has resulted in frequent crises where Plant Operations and Maintenance forces have had to make prodigious efforts to keep the plant running and meeting effluent requirements. The lack of needed backup systems, along with the many design/construction problems with many other systems, creates a constant drain on Water Pollution Control Department resources that is counterproductive to employee morale and to achieving safe, economical, and reliable plant operation. Following is a brief description of the need for several of the backup systems that were to be provided under the 5BI project. Electric Blower The 5B1 project includes an electric motor -driven blower to provide low pressure plant air. The existing plant has two steam turbine driven blowers which provide air for activated sludge aeration and other low pressure aeration uses. The existing blowers are oversized for current conditions, and the auxiliary steam system has insufficient backup under current conditions. Constant operational problems are experienced because of operating the blowers in the lower 50 per cent of their range, and the failure or required maintenance of one of the two auxiliary steam boilers creates a process control crisis until the damage can be repaired. In addition, the overall steam system has proven to be prone to frequent temporary breakdowns. When low pressure air is lost, mixed liquor from the activated sludge tanks backfills the Norton air diffusers tend- ing to plug the ceramic diffuser material. The Norton diffusers are not designed for easy removal and cleaning; when they finally plug, their cleaning will be very difficult. Memo to: R. J. D. - 2 - November 26, 1979 The installation of a properly sized electric blower would extend the Norton diffuser service life, would greatly uncomplicate daily plant operation, would save considerable power costs while the furnaces are off line, and would result in more reliable plant operation. The long lead time that may be required for delivery of a blower makes it even more important to proceed as soon as possible. Local Analog Backup for Computer The Water Pollution Control/Reclamation Plant is designed for computer con- trol with no existing provision for local analog backup. When the computer system fails, operation of the plant is extremely difficult - much more difficult than if the plant had been designed with no computer at all. The mainframe computer has a backup unit and has proven to be faily reliable (with constant maintenance and troubleshooting) although there have been some critical periods with one computer down, and the backup computer acting up. The mainframe computers rely on 24 microprocessor units to relay messages to and from field sensors and equipment. Without these microprocessors, the computer is useless for control purposes. Most of the microprocessors are located in the field in unfavorable environments and have proven to be unreliable. Failure of a microprocessor will usually require local, manual control of a section of the plant. Occasionally, a microprocessor failure will render some equipment inoperable until the microprocessor is disabled. Computer system failure is a constant operational headache and a frequent cause of maintenance callouts in the middle of the night. In difficult operating conditions like rainstorms, computer failure can be very serious. A complete analog backup system is required to supplement the computer system as soon as possible. Additional Sludge Cake rump When the incinerators are not in operation, dewatered sludge must be conveyed from the centrifuges to a disposal truck. The District has installed a Moyno sludge cake pump fnd a sludge line for this purpose. The Moyno sludge cake pump has no backup and is situated so that only two out of four centrifuges can be opera- ted. As a result since it takes two centrifuges to handle the plant sludge produc- tion, there is no backup centrifuge. The lack of backup in the dewatering system causes a crisis whenever maintenance has to be performed on the sludge cake pump or a centrifuge. Mechanics have had to work all night and all weekend on centrifuge mechanical problems. When dewatering is interrupted for 24 hours or more, the plant process is upset for days causing increased treatment costs, odors, and degraded effluent quality. The backup Moyno sludge cake pump provided for in the 5BI project is needed as soon as possible. N Memo to: R.J.D. - 3 - November 26, 1979 Additional Sludge Density Meters The primary plant sludge pumping system presently has only one primary sludge density meter. The 561 design calls for a total of four sludge density meters (one for each primary sedimentation tank). The primary sludge pumping system is presently being operated in a modified manner to allow operation without the additional three primary sludge density meters. This modified sludge pumping operation is vulnerable to primary sludge pump failure and to primary sludge density meter failure. Failure of the density meter, or of any one of the eight primary sludge pumps, interrupts controlled sludge pumping which results in increased dewatering polymer consumption and/or production of odors. Additional primary sludge density meters are needed for the primary plant as soon as possible. Standby Power The Water Pollution Control/Reclamation plant presently gets its power from only one Pacific Gas and Electric main transmission line. Interruption of Pacific Gas and Electric power causes great operational difficulty and stops secondary treatment. The backup Pacific Gas and Electric transmission line provided by the 5B1 project is needed as soon as possible. This list has not been intended to be comprehensive, but attempts to describe the difficulty and risks of operating the Water Pollution Control/Reclamation plant in its present stage of incompletion. It should be noted that the portions of the 561 project critically needed now are those relating to missing backup systems, not those relating to the 10 MGD expansion. Also it should be stressed that even if the 5B1 project was designed and approved today, it could take 24 months or more to install some of the above backup systems. The Plant Operations Department has, with great difficulty, managed to consis- tently meet discharge requirements despite the problems described above. The risk of a crucial plant breakdown because of insufficient backup systems is cumulative, and increases each day that needed backup systems are not provided. The drain on the Plant Operations Department resources is steady, and the drain on morale caused by frequent breakdown -induced crises needs to be considered. D. G. Niles DGN:mg Manager, Plant Operations BOARD OF DIRECTORS No. VII. NB 2 12/6/79 POSITION PAPER VIA. ROGER J. DOLAN DATE Dec. 6, 1979 General Manager—Chief Engineer SUBJECT EXECUTE CONSENT TO DEDICATION TO CONTRA TYPE OF ACTION ` COSTA COUNTY - SUBD 5723 - JOB 3.148 RIGHT OF WAY I SUBMITTED 8Ya McCoy INIT ATIN¢ DEPTdPIV. �l Y Y engineering/Collection System ISSUE: Hermia Drive, a new road in proposed Subdivision 5723, runs along an existing District sewer easement. Hermia Drive will be dedicated to the County for public use when the Subdivision Map is filed. I BACKGROUND: The County requires a Consent to Dedication ww enever anew road is dedicated to the County for public ! use if said road encroaches upon an existing easement. This is our standard consent document, the District retains prior rights. RECOMMENDATION: Approval, execute document and authorize its recording by the County. BOARD OF DIRECTORS i TE fq 90' NO. VII. NB 3 72/6/79 POSITION PAPER VIA: ROGER J. DOLAN DATE Dec. 6, 1979 General Manager—Chief Engineer SUBJECT AUTHORIZATION FOR P.A. 79-31 (ONE PARCEL) WALNUT CREEK TYPE OF ACTION AREA, TO BE INCLUDED IN FORTHCOMING DISTRICT ANNEXA- ANNEXATION TION PROCEEDINGS SUBMITTED B ay S. McCoy INITIATING DEPT./DIV. Engineering/Collection System Owner Parcel Address Lead No. Area Parcel No.& Acreage Remarks Agency 79-31 W.C. R.M. SCHULZE, et ux Proposed Subdivision 5549 with a Cy of 230 La'Casa Via total of 9 lots. (Single family Walnut Walnut Creek, CA residences) tentative map approved Creek 140-131-02 & -03 by City of Walnut Creek. Negative 7.48 Acres Declaration by CitX of W.C. 79-32 Alamo Remmil Corp. II Proposed Subd. 5196, with 27 lots 2811 Adeline St. 1 total (single family residential) County Oakland, CA l 1/4 to 4 1/2 acre sites. Tenta- 200-020-11, -12, -13 & -19 tive map and E.I.R. approved by 197-150-02 County 68.37 Acres 79-33 P.H. Vincent Custodio, et ux Both owners plan to build a sin- Dis- 1201 Monument Blvd #16 gle family residence on their trict Concord, CA 94520 property - District to prepare a .62 Acres (152-070-18) "Notice of Exemption" for each f property. I William J. Walsh 137 Arbolado Dr. Walnut Creek, Ca 94598 •53 Acres (152-070-17) RECOMMENDATION: Authorize P.A. 79-31 to be included in the next formal annexation to the District. o,gTH�O�, REVIEWED AND RECOMMENDED FOR BOARD ACTION 1 NITIAT��P ./DIV. G IIEF NG. ,Z fM CLW i TE fq 90' Gene-, C G neMA, 7 T os-tS }ict L BOARD OF DIRECTORS NO. VII. NB -5 12/6/79 POSI��®� pAp��� ROGER J. DOLAN DAT£Q7General November 26 1979 9 Manager—Chief Engineer SUBJECT TYPE OF ACTION AUTHORIZE $550.00 FOR GAS DETECTION TRAINING FOR Personnel Training C.S.O. PERSONNEL SUBMITTED BY INITIATING DEPT. Div. Robert H. Hinkson Collection System Operations ISSUE: This is a one day training program offered by Warren Industries for up to 15 C.S.O. Department personnel in gas detection. BACKGROUND: Warren Industries does not manufacture or sell detection equipment --their business is training, consultation and evaluation. They will evaluate our equipment; instruct in its proper use, its maintenance and its calibration. They will make recommendations for upgrading our replacement of our equipment. The training session begins and ends with examinations that are meant to indicate before and after knowledge of detection methods Intended for daily application in the Department. The program includes on site application and employs individual hands on teaching techniques. RECOMMENDATION: Authorize $550.00 fee for gas detection training for C.S.O. personnel. REVIEWED AND RECOMMENDED FOR BOARD ACTION (011 AIriNG DE� ./DIV. ?ev G nMGR./CF01E RI H - C.S.O. WCD nitary WC$,ars•� BOARD OF DIREC70RS NO. VII. NB -6 12/6/79 (� `j�' ®SQ U ®i!� PAPERVIA. ROGER J. DOLAN General Manager --Chief Engineer DATE November 21, 1979 5UBJECT ACTi'!-IORIZATION OF $310 FOR H. S. MCDONALD TO ATTEND A TYPE OF ACTION WD -DAY SDMQAR IN LOS ANf== , CAi MMIA ==, "IIZC M- TIVE AND ALTEf11TIVE TECHMLOGY ASSESSMENT SEN1W. " Employee Education SUBMITTED BY INITIATING DEPT./DIV. John Larson Special Projects -Engineering Division Issue: The Environmental Protection Agency is sponsoring a two, -day seminar entitled, "Innovative and Alternative Technology and Assessment Seminary," to be given at the Biltmore Hotel in Los Angeles, California. Background: The seminar and contents of the accompanying manual are intended to pro- vide interpretative insights into both Congressional and Agency goals in the formulation and administration of the innovative and alternative provisions of the Clean Water Act of 1977. The subject matter includes an innovative and alternative technology screening methodology, cost and energy effectiveness analysis criteria and procedures as well as a set of conprehensiver fact sheets for commonly employed and emerging municipal technology processes, systems, and subsystems. There is no registration fee for the seminar. Travel and expenses for one is estimated to be $310. Recommendation: Authorization of travel and expenses of $310 for H. S. McDonald, Assistant Engineer -Special Projects Division, to attend the seminar entitled, "Innovative and Alternative Technology Assessment Seminar," in Los Angeles, California, December 6-7, 1979. REVIEWED AND RECOMMENDED FOR BOARD ACTION INiTIATI G DEP ./DIV. G / H EF NG. BOARD OF DIRECTORS NO. - VII. NB - 7 12/6/79 POSITION PAPER VIA ROGER J. DOLAN DATE General Manager—Chief Engineer December 6, 1979 SUBJECT AUTHORIZE $2200 FOR DISTRICT PARTICIPATION IN A TYPE Of ACTION DRAINAGE STUDY INITIATED BY THE TOWN OF MORAGA AUTHORIZE FUNDS SUBMITTED BY Jay S. McCoy INITIATING DEPT.; DIV, Engineering/Collection System BACKGROUND: The Town of Moraga has engaged Tudor Engineering to perform a drainage study. Phase 1 of the study has been completed and it identified i some areas within the Town for further study. Phase II of the study will commence soon and will center around the problems existing on San Leandro Creek. Said creek is located behind the District's Moraga Pump Station. j The creekbank has been eroding and some riprap has been installed by the I! District to temporarily halt the erosion. It is thought that Phase 11 of the study will have some benefit to the District as outlined below. The Town of Moraga has requested monetary participation in the study by EBMUD, CCCFCD and CCCSD in the amount of $8,750 each. EBMUD's informal position at staff level is that they will contribute up to one-third of the cost of the study provided that one other public agency (besides Moraga) also participates. CCCFCD has agreed to pay approximately $8,000 towards the study. Inasmuch as this District is a property owner along the creek and is not causing damage or erosion along the creek, we will receive, at most, an indirect benefit from the study such as identification of an erosion problem and possible causes thereof. It is not anticipated that this District will receive $8,750 worth of benefit from the study. { RECOMMENDATION: Authorize $2200 for District participation in a drainage ! study for the Town of Moraga. I I i REVIEWED AND RECOMMENDED FOR BOARD ACTION INIT TING IV. G ./ H.EF ENG. 7OF-/ c CLW WC D ��