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Home My WebLink AboutAGENDA BACKUP 03-19-87 . POSITION Centrt Contra Costa Sanitar District .. BOARD OF DIRECTORS I PAGE 1 OF 3 PAPER I BOARD MEETING OF March 19, 1987 NO. IV. CONSENT CALENDAR 5 SUBJECT DATE AUTHORIZATION FOR P.A. 87-7 (DANVILLE) AND P.A. 87-8 (ALAMO) March 9, 1987 TO BE INCLUDED IN A FUTURE FORMAL ANNEXATION TO THE DISTRICT TYPE OF ACTION ACCEPT ANNEXATION FOR PROCESSING SUBMITTED BY Dennis Hall, Associate Engineer INITIATING DEPT.lDIV. Engineering Department/ Construction Division Parcel No. Area 87-7 Danville (78C5) 87-8 Alamo (78C3) Owner Address Parcel No. & Acreage Remarks Lead Agency James L. Riccio 2727 Velvet Way Walnut Creek CA 94596 196-031-006 (1.20 Ac) New construction - one single family residence. District to prepare "Notice of Exemption." CCCSD Seal Beach Business Center, Proposed Subdivision 6703. Inc. Forty-two single family c/o Richland Development C(. lots are planned for the 3050 Citrus Circle, #203 site. 115 acres are to be Walnut Creek CA 94598 dedicated to East Bay Park 193-190-019 (160 Ac) District as open space. Planning and Negative Declaration approved by County. Contra Costa County RECOMMENDATION: Authorize P.A. 87-7 and 87-8 to be included in a future formal annexation. INITIA TI~EPT.IOIV. 1302" .9'85 DH REVIEWED AND RECOMMENDED FOR BOARD ACTION P't1/ p&t;J -#la ENG I ROGER J. DOLA1r"' JSM RAB I1LJMP~ RE Y 1:.-0 '~At III Bj::CHOF~ I ~ 9 ~ AC 74 72 73 59AC ~ ( HEI HT Oft ~~~e~\l;;', 32 20 A( 6 PROPOSED ANNEXATION RA.8?-7 78C5 \}~ ~'1 n I ! !. _ T'--..... -....... "'-/...~~ /'<... 4C -._~._--,---"'_..~-,---- ~ --f.:4iJ"'i .. ""~',i,..., -r ~ . SUB I I '. .......< t. ...... ... .... .i.'\ '.. > ...... ..i ..... '" j .'~' \1jijj!;;\ '. ~. 4915 .' "b::1IIo. 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IBf rl~ .i~\~ "'00 I" I ,,,,.. I r ~ ,'... ..,.,oo.Jf-...!i"" PROPOSED ANNEXATI ON ~ ,.;,.....,T1'~....~~~ L.\ 1.....:-;-" 7 8 ~ ~~..r---~c J · ~ A .. ;.~~ 0 "l~. "" "~O "O;~~ ~ R A . 8 -- ~ I ~ '-=; ~... ~ I .,/"~ J---i I '" ",., ~ ~ I----t.:;~..pl... _'0\ r---, _... I____JI I fID.at ,:lac 0"( \" ~ e"i- . - '\ ~--.~.,~~ _ __ __ -..~__l _ K J2 -," .1>::;:::.... ^ \ r......~ . I L-l 1:-' ~ '~:~~LLLID';~~~~T .l~' ta.ltt._ ~ ^ ;.:.:.:. .....r., ;: \ r-- / r-- r--r \ ^'~ ~c(<4 ~ (\ 5 ~ \ .. ,"'r . 1'1'" <to 0 A' ~ L- ~ .0 . r-- '~I ~ . ,... . Centri._ Contra Costa Sanitar) District BOARD OF DIRECTORS PAGE 1 OF 2 POSITION PAPER BOARD MEETING OF March 19, 1987 NO. IV. DATE March 9, 1987 TYPE OF ACTION CONSENT CALENDAR 6 SUBJECT AUTHORIZE THE QUITCLAIM OF A SEWER EASEMENT, JOB 1564, PARCEL 6, SUBPARCEL NO.1, ORINDA AREA APPROVE QUITCLAIM OF EASEMENT SUBMITTED BY Dennis Hall, Associate En 1neer INITIATING DEPT./DIV. Engineering Department/ Construction Division ISSUE: Alta Junge, owner of Lot 39 of Moraga Estates, has requested the District to quitclaim one of the sewer easements which lies within her property. BACKGROUND: The subject easement was granted to the District in 1949 and has been in use since that time. Development on the property (Lot 40) to the south of Alta Junge's property (Lot 39) has made it desirable to relocate the existing sewer in both properties. Replacement easements have been granted to the District and the sewer has been relocated. The subject easement is no longer needed. RECOMMENDATION: Approve Quitclaim Deed to Alta Junge, Job. No. 1564, authorize the President of the District Board of Directors and the Secretary of the District to execute said Quitclaim Deed, and authorize the Quitclaim Deed to be recorded. REVIEWED AND RECOMMENDED FOR BOARD ACTION 1302A..9/85 DH JSM RAB I9'f '/J( fJlIiJ INITIATING DEPT./DIV. S/1e 10' f(t:pL.At:.E~ENr eASt:MEm- IVORTHWOOD CT t ~ I I ~ ~ I~l' (;)-.1 III \\IV OQ: I ~~ Iti vi V5 ~ ~ I i;::~Z:8 ; ..' ,/ ..-:' -i- ........... I :.? ..... ....~ .~:r ~ (j ~ ~ o (\') " l!.i='l"; ,~ .;3 ....- r.. ;: c -7-.'" -,- r_o ..-: . .. ..... ~ .-, ,..":11--, ~_...: i ,.., I t::: :::. It) :,' ,F:.' 1.-::': /J..t s~ S. S.lE... I~ oz O.~. Z 39 .P,f~ C4.1.. a.v.s: .............. ..... -V 6 f QU/TCl AI,.,., ~~~:l I ,!.1;;~~ 57'~4 N/\/j~". S75t>3~'/S ';C; r R,eLDCATE:D seWER. I... C) -j-o .4 {::: QUITCLAIM EASEMENT Job 1564 - Parcel 6 ORINDA AREA . Centr.. Contra Costa Sanitar District . BOARD OF DIRECTORS PAGE 1 OF 1 POSITION PAPER BOARD MEETING OF March 13, 1987 NO. IV. CONSENT CALENDAR 7 SUBJECT DATE AUTHORIZE AN EXTENDED THREE MONTH MEDICAL LEAVE OF ABSENCE March 9, 1987 FOR MIOiAEL PARKINSON, MAINTENANCE CREW LEADER, EFFECTIVE TYPE OF ACTION MARCH 7, 1987 AUTHORIZE LEAVE SUBMITTED BY INITIATING DEPT.lDIV. John Larson, Manager Collection System Operations ISSUE: Board Authorization is required for a medical leave of absence. BAa<GROUND: Michael Parkinson has been off work since September 18, 1985 due to' a medical condition. He has exhausted his accumulated sick, vacation, and earned overtime leave. Mr. Parkinson has applied for retirement, but requires a medical leave of absence until a determination is made by the county on his retirement application. An extended medical leave of absence is requested for up to three months effective March 7, 1987. RECOMMENDATION: Authorize an extended three month medical leave of absence for Michael Parkinson, Maintenance Crew Leader, effective March 7, 1987. REVIEWED AND RECOMMENDED FOR BOARD ACTION . Centr~_ Contra Costa Sanltar) District BOARD OF DIRECTORS PAGE 1 OF 1 POSITION PAPER BOARD MEE~~<;'~W 19, 1987 NO. IV. CONSENT CALENDAR 8 ~Ji-ch 12, 1987 SUBJECT AUTHORIZE PURCHASE AND INSTALLATION OF A SUPPLEMENTAL CABINET AND CIRCUIT PAKS ON THE TELEPHONE SYSTEM AND AUTHORIZE $6,000 FROM THE SEWER CONSTRUCTION FUND TYPE OF ACTION AUTHORIZE PURCHASE AUTHORIZE FUNDS SUBMITTED BY INITIATING DEPT./DIV. Paul Morsen, Deputy General Manager Administrative Department ISSUE: Additional telephone equipment needs to be purchased and Board approval is required for expenditure of Sewer Construction Funds. BAa<GROUND: The Dimension 400 Telephone System was install ed at the Di strict in January 1983 to coincide with staff moving into the new Headquarters Office Buil di ng. At that time, the system was bei ng 1 eased pendi ng the total outcome of the break-up of AT&T. The initial installation cost was authorized by the Board for $49,500. In October 1983, staff and AT&T had completed negotiations for the purchase of the Dimension 400 at a cost of $82,368. The Board's approval for the purchase was obtained in November 1983 and additional funding was authorized, bringing the capital project balance to $97,584. In May 1984, AT&T finally invoiced the District for the complete system and was paid. However, during this time, the District was growing in both personnel and in the mechanical equipment areas, such as operational alarm systems, that use telephone lines. Since many projects that required physical relocation of personnel were being planned, such as Planning Division to the first floor, new Mechanical Maintenance/Materials Control building, and CSO building renovation, staff decided to leave the telephone system project open to consolidate all of the telephone system costs. Currently, an unexpended balance of approximately $3,000 exists in the capital project, DP 3693. Because of the expanded demands on the telephone system, 174 of the 177 available extensions have been used. The system needs to have additional capacity for future demands such as computer modems, additional alarms, and additional employees. We propose to add additional lines by adding one supplemental cabinet which can hold 5 carriers, one carrier which can hold 16 circuit paks, and one circuit pak with four 1 ines. This supplemental equipment will allow the District, as needed, to expand the system in the future from the current 177 to approximately 300 extensions. The equipment must be added since there is no additional capacity available in the old cabinet. The total cost for the material and installation is approximately $9,000. Since a $3,000 balance remains from the original project, we are requesting an additional $6,000 from the Sewer Construction Fund. RECOIEN>ATION: Authorize purchase of the suppl ementa 1 telephone equi pment and authorize $6,000 from the Sewer Construction Fund. REVIEWED AND RECOMMENDED FOR BOARD ACTION . Centri.._ Contra Costa Sanitar i District BOARD OF DIRECTORS PAGE 1 OF 2 POSITION PAPER BOARD MEETING OF March 19, 1987 NO. v. ENGINEERING 1 SUBJECT AUTHORIZE THE GENERAL MANAGER-CHIEF ENGINEER TO EXECUTE AN AMENDMENT TO A JOINT EXERCISE OF POWERS AGREEMENT WITH THE TOWN OF DANVILLE FOR THE INSTALLATION OF SANITARY SEWERS IN ASSESSMENT DISTRICT 1985-1 DATE AUTHORIZE AMENDMENT SUBMITTED BY Jay S. McCoy, Construction Div. Manager INITIA TING DEPT.lDIV. Engineering Department Construction Division ISSUE: The existing Joint Exercise of Powers Agreement with the town of Danville must be amended to provide for the installation of additional sewer facilities. BACKGROUND: On February 6, 1986, the Board authorized a Joint Exercise of Powers Agreement (JEPA) with the town of Danville which provides for the construction of sewer facil ities in joint projects which will be advertised and administered by Danville as a part of Sycamore Valley Assessment District 1985-1. A portion of the sewer facilities will be constructed this summer along Sycamore Valley Road in conjunction with the widening and reconstruction of the road. The Sanitary District will also start the construction of the San Ramon Valley Trunk Sewer Project this year, a portion of which will cross Sycamore Valley Road. If the portion across Sycamore Valley Road is installed in conjunction with the road work, the installation can be made using an open cut method, thus eliminating the need to bore under Sycamore Valley Road in the future. Since open cutting will be less expensive than boring, it will be advantageous to incorporate the install ation of a small portion of the future San Ramon Vall ey trunk sewer project (approximately 230 lineal feet of 42-inch diameter sewer) into the road contract. Staff has prepared an amendment to the existing JEPA with Danville which will result in the installation of a small portion of the San Ramon Valley trunk sewer in Sycamore Valley Road concurrentl y with the road improvements. The major features of this amendment are as follows: o Danville will advertise the project, award the contract, and administer the construction of the joint project. o District will pay all costs of design and construction of the sewer. o District will inspect the sewer work. The cost savings to the District which will result from combining the sewer and road improvements is estimated to be approximately $156,000. The cost of the installation of the sewer is estimated to be $150,000 and is the subject of a position paper to be considered later in the agenda. REVIEWED AND RECOMMENDED FOR BOARD ACTION SUBJECT AUTHORIZE THE GENERAL MANAGER-CHIEF ENGINEER TO EXECUTE AN AMENDMENT TO A JOINT EXERCISE OF POWERS AGREEMENT WITH THE TOWN OF DANVILLE FOR THE INSTALLATION OF SANITARY SEWERS IN ASSESSMENT DISTRICT 1985-1 POSITION PAPER PAGE 2 OF 2 DATE March 9,1987 The execution of an amendment to an agreement is not subject to the California Environmental Quality Act because it is not a project as defined in Section 20.29 of the District's environmental guidelines. RECOMMENDATION: Authorize the General Manager-Chief Engineer to execute an amendment to the Joint Exercise of Powers Agreement with the town of Danvllle. 13028-9/85 . Centr&-._ Contra Costa Sanitar ~ District BOARD OF DIRECTORS PAGE 1 OF 3 POSITION PAPER BOARD MEETING OF March 19, 1987 NO. v. ENGINEERING 2 SUBJECT AUTHORIZE $150,000 FROM THE SEWER CONSTRUCTION FUND FOR CONSTRUCTION OF A PORTION OF THE SAN RAMON VALLEY TRUNK SEWER BY THE TOWN OF DANVILLE ASSESSMENT DISTRICT 1985-1 DATE Ma rch 13, 1987 TYPE OF ACTION AUTHORIZE FUNDS SUI;!MITTED BY. l.;urti s w. Swanson Principal Engineer Il\UTIA11NG DEP-1T./DI\t.. tm t cnglneer ng uepar en Engineering Division ISSUE: Board of Directors' authorization is required to expend sewer construction funds. BACKGROUND: The Di stri ct intends to construct a new ll.s-mil e trunk sewer and force main to serve the San Ramon Valley. During 1987 approximately 7.5 miles of trunk sewer will be constructed in the former Southern Pacific right-of-way extending from St. James Court in Danville north to Rudgear Road in Walnut Creek (see attached map). The trunk sewer alignment will cross approximately 30 public and private streets, including Sycamore Valley Road. Because of traffic impacts and to avoid utilities, the District proposed to tunnel under Sycamore Valley Road. Since this proposal, District and Danville staff have discussed constructing the portion of the trunk sewer across Sycamore Valley Road as part of Danvllle Assessment District 1985-1. Under this approach the Town and District would avoid conflicts between their respective contractors working in the same area, and the District could use less costly open-trench construction methods instead of tunneling. The cost of installi ng the trunk sewer across Sycamore Vall ey by tunneli ng is estimated to be $306,000. The cost by constructing in conjunction with the Assessment District is estimated to be $150,000. Thus, the cost savings to the District are estimated to be approximately $156,000. An authorization of $150,000 from the Sewer Construction Fund is requested to allow construction of the trunk sewer segment as part of the Assessment District. An amenanent to the existing Joint Exercise of Powers Agreement with the Town of Danville to incorporate the trunk sewer construction was the subject of an earlier position paper. To comply with the California Environmental Quality Act, the District prepared an EIR for the San Ramon Vall ey Trunk Sewer Proj ect, i ncl udi ng the segment across Sycamore Valley Road. The EIR was certified by the Board of Di rectors on October 16, 1986. Thi 5 proj ect is i ncl uded in the 10-year Capital Improvement Pl an under the Priority A category (Title: San Ramon Valley Project-Phases 1,2, and 3). REVIEWED AND RECOMMENDED FOR BOARD ACTION 1302A..9/85 CWS DRW JSM RAB ./ IEF ENG. ()fi,J SUBJECT AUTHORIZE $150,000 FROM THE SEWER CONSTRUCTION FUND FOR CONSTRUCTION OF A PORTION OF THE SAN RAMON V ALLEY TRUNK SEWER BY THE TOWN OF DANVILLE ASSESSMENT DISTRICT 1985-1 POSITION PAPER PAGE 2 OF 3 DATE March 13, 1987 RECOMMENDATION: Authorize $150,000 fran the Sewer Construction Fund for construction of a portion of the San Ramon Valley trunk sewer in conjunction with the Town of Danville Assessment District 1985-1. --------. 13028-9/85 --- 13 tJ 5 NAVAl ir~ <)." Q", ~J ""i::, UAGAZINE \ \ \\.(1"" \~ ~'~i--- v....." _ ,..<:: ~~... - .-:..;;.~ 'I /~/S.. ..r.... ~ ""-: - ~. ", ~\ ", .=\ ~!. .'. " " [L '''''' BtloCI'I PI A Et fW' .. ",TCHElI.. U ROCK ^ " - o .. -f--- STArE GAME REFuGE 3-F 't:o-t\\ :~(... ''i ~ _ _ _ _ .., S";'4,.- ~ fAE~.L;':E"K " ?-i' MOliNT , , I - 'ft' 115' -- NOItTH PfAff 0. ...., fL.... I ,M'. OlA8tO . , .0. oJ ~.. -~..;;~~ J STAT! GAVE REFUG€ ,., , .- "I . i l ;1 :1 I; .' ,; " PARI( ,.- c.:.J...... . -,~~f:;'; -r - - - .-...; .:. SP R/W r "=~~-, u.ss....J.I."... PHASE 1A & 2 SEWER ., , ''-Z: ~1:.Q..... \~ , " :! Valley 3 "\ 73 ,~ I \ . \ W. 'MNCL 'G'.JN.lr ,}11"~( < , ~ PARKS PHASE 18 SEWER '''-, \"/f';~;,'~~~:,., ',iJ. -., ., f, l"'~ ~":.. "";','C.J 1"'(/ RfSERVf FORCES ~----~ ---- ~ TRAININO :-,.u_.u ." O-'",~ -:~.' " ' . ,-;. '.> r. AREA ~ / ( Central Contra Costa Sanitary District ~~ SAN RAMON VAllEY TRUNK SEWER PROJECT 4224 ATTACHMENT I 2523-1/87 . Centrl._ Contra Costa Sanitar) ilistriel BOARD OF DIRECTORS PAGE 1 OF 3 POSITION PAPER BOARD MEETING OF March 19, 1987 NO. v. ENGINEERING 3 SUBJECT DATE March 12, 1987 AUTHORIZE m ADDITIONAL $18,400 FROM THE SEWER CONSTRUCTION FUND FOR DESIGN OF IMPROVEMENTS TO THE CONCORD INDUSTRIAL mD BATES AVENUE PUMP STATIONS <DISTRICT PROJ ECT NO. 4091) TYPE OF ACTION AUTHORIZE FUNDS SUBMITT~D BY oug I as J. Cra i g Associate Engineer II')IJTIA11NG DEl?iT./DIIl.. tm t cnglneer ng uepar en Engineering Division ~: Additi onal funds are requi red for final desi gn by Di strict forces of improvements to the Concord Industrial and Bates Avenue pump stations. BACKGROUND: The Board of Directors has previously authorized $31,900 to complete the predesign and design phases for capital improvements to the Concord Industrial pump stati on. The improvements i ncl uded the prepurchase of 1 arger pumps and motors, improvements to the el ectrical and control systems, and constructi on of additional wet well capacity. During the design phase it was determined that variable speed pump controls were less costly than an expanded wet well. Additional design efforts were necessary to evaluate both alternatives and eventually compl ete final desi gn on the more compl ex vari abl e speed control system. Even with the additional design costs of $8,400, the overall project cost has been reduced by selecting variable speed controllers. The Bates Avenue pump station which is located in the same vicinity as the Concord Industrial pump station (Attachment 1) also requires electrical modifications. These modifications are requi red to provide compati bil ity with emergency backup generators and also to satisfy local assessment district requirements for providing underground electrical distribution. Because of location and similarity of work, staff recommends that the Bates Avenue pump stati on improvements be combi ned with the Concord Industri al pump stati on improvements. This additi onal design effort will cost $10,000 and was not included in previous project authorizati ons. In summary, the increased design requirements for the variable speed controllers in the Concord Industrial pump station and the additional effort requi red for electrical modifications in the Bates Avenue pump station have resulted in a need for an additional $18,400 for District labor to complete the design. Refer to Attachment 2 for a project design cost breakdown. RECOtvf.1ENDATION: Authorize $18,400 from the Sewer Constructi on Fund for the increased costs of additional design efforts by District forces on District Proj ect 4091. f}~e- 13 ;;vll2 4J ,di(A/ 1302A.9/85 DJC BLM DRW RAB INITIATING DEPT./DIV. G SCALE' NTs 7 8 ON CORD INDUSTRiAl PUMP STATIO BATES AVE PUMP STATION Centn"Contr~Cosu ~nftary DIstrict ~ Attachment PUMP STATION LOCATIONS ATTAOiMENT 2 PROJ EeT DESIGN COST CONCORD INDUSTRIAL/BATES AVENUE PUMP STATION IMPROVEMENTS <DISTRICT PROJ ECT 4091> Authorized Budaet Rev i sed Budaet ChanQa Concord Industrial Pump Station Design Cost $31,900* (District forces) $40,300 $ 8,400 Bates Avenue Pump Stati on Design Cost (District forces) -0- 10,000 10,000 Total Change $18,400 *Includes authorizations as follows: February 6, 1986 - $10,900 August 15, 1986 - $21,000 . Centril... Contra Costa Sanitar) Oistriet BOARD OF DIRECTORS PAGE 1 OF 12 POSITION PAPER BOARD MEETING OF March 19, 1987 NO. v. ENGINEERING 4 SUBJECT DATE March 16, 1987 CONSIDER APPEAL BY BIRD MACHINE COMPANY REGARDING CENTRIFUGE PREQUAL IFICATION TYPE OF ACTION CONSIDER APPEAL SU'B~~tE9..~Y Michalczyk Senior Engineer INlTIAT.ING DEP.iT./DIIlD tm t ~nglneer ng epar en Engineering Division ISSUE: Bird Machine Company has been disqualified from bidding on the Dewatering System Improvements Proj ect. Bi rd Mach ine Company has formally appeal ed staff's determination to the Board of Directors. BACKGROUND: The District is presently in the process of designing facilities for the Dewatering System Improvements Project. The project will provide facilities capabl e of dewateri ng sl udge produced by a 45 million gall ons per day average dry weather flow. The heart of the system will be four new horizontal solid bowl dewatering centrifuges. The centrifuges will be prepurchased by the District to expedite delivery and reduce cost. The District chose to undertake a formal prequalification process for the centrifuges due to significant differences which exist among the equipment manufactured by various suppliers and because of the potentially large cost penalties which would be faced by the District should a low-bid centrifuge prove to be inefficient or unreliable from the standpoint of maintenance and operation. There are many examples in the wastewater industry of centrifuges which have failed to operate satisfactorily in specific applications. The District has completed a prequalification process to determine which suppliers can meet the minimum requisite standards set for this project and are therefore, potential responsive bidders. The prequalification process was modeled on procedures used by the U.S. Environmental Protection Agency for obtaining approval of grant fundable wastewater treatment plant improvements. The process began with a formal Request for Submittals from the District which required that potential suppliers furnish detailed and specific technical information for evaluation. An objective evaluation procedure was developed prior to receipt of submittals which set forth the criteri a upon which the determi nati on was to be based; these procedures were contained in a "Rev i ewers Gui de" and were to be foll QlIed by the evaluators. The criteria and relative weights, which were included in the evaluation, were based upon concerns for design of the equipment, experience, performance, reliability, maintenance and the ability to interface with existing eq ui pment. Submittals were received from four manufacturers: Bird Machine Company, Humbol dt-Wedag, Ingersoll-Rand, and Sharpl es. An independent eval uati on of the information received was conducted by Bert Michalczyk, a Senior Engineer with the District, and Jamel Demir, an Associate with John Carollo Engineers. Attachment A describes the process in detail. REVIEWED AND RECOMMENDED FOR BOARD ACTION ~~ 1302A.9/85 BLM DRW RAB SUBJECT CONSIDER APPEAL BY BIRD MACHINE COMPANY REGARDING CENTRIFUGE PREQUALIFICATION POSITION PAPER PAGE 2 DATE March 16, 1987 OF 12 The results of the joint District/John Carollo Engineer prequalification process was as follows: o Humboldt Wedag o Sharples Penwalt o Bird Machine Company o Ingersoll-Rand Prequal ified Prequal ified Di squal ifi ed Di squal ified The prequalification team has determined that the equipment proposed by Ingersoll-Rand and the Bird Machine Company is unacceptable and would be considered technically non-responsive if bid on this project. Ingersoll-Rand has not contended the determ i nati on; Bird has appeal ed. Attachment B represents a summary of the key factors contributing to the evaluations of Bird Machine Company's equipment. Representatives of Bi rd Mach i ne Company have met with Di stri ct management to di scuss staff's determi nati on. At that meeti ng Bird expressed vari ous concerns about the process and presented additi onal i nformati on for consi derati on. Staff bel ieves that there is no justification to alter the prequal ification determ i nati on. RECOMMENDATION: Reject the appeal by Bird Machine Company; affirm District staff's determination that Bird Machine Company is not prequalified to furnish dewatering equipment for the Dewatering System Improvements Project. --------.. 13028-9/85 Page 3 of 12 ATTACHMENT A PREQUALIFICATION PROCEDURE Before issuance of the final version of the Request for Submittal (RFS), a preliminary version, including the prepurchase specifications, was prepared and distri buted for comment to each of four centrifuge Suppliers who had expressed interest in the project at that time: Bird Machine Co., Humboldt-Wedag, Ingersoll-Rand, and Sharples. This provided Suppliers an opportuni ty for comments and suggestions and the option to begin accumulating long lead time data. The final version of the RFS was a formal document which was pre- pared to instruct potential centrifuge Suppliers in the development of their submittals. The RFS explained the procedural requirements for Centrifuge Prequalification including the deadline for submittal, format, overview of the determination method, etc. Most importantly, the document outlined the extent of the specific data required by the District for the evaluation of each Supplier including design features, experience, operation and maintenance, service and training, and finan- cial considerations. Supplemental data was also requested on topics such as testing, scale-up, static and dynamic loadings, etc., although this information was used only for planning and design purposes, not for evaluation of Suppliers. Also included in the appendix of the RFS was a preliminary Prepurchase Specifications containing commercial and tech- nical terms for review and comment by the Suppliers. When the final version of the RFS was completed and ready for distribution on October 10, 1986, each of the four Suppliers previously mentioned was contacted by telephone and informed of the RFS avail- ability. The District also published a formal "Notice Inviting Submittals" in the Contra Costa Times on October 15 and 22, 1986, which described the nature of the project, emphasized the evaluation criteria which would be used for prequalification, provided RFS ordering data, and indicated the deadline for receipt of Submittals. Questions regarding the RFS were directed to the District's Project Manager, Bert Michalczyk. Also, a presubmittal conference was held at the District Office on October 29, 1986, to provide a forum for question and comments from interested Suppliers; representatives from Sharples and Bird Machine Company were present. As a result of input from Suppliers, three addenda were issued, the last one, which changed the submittal deadline from November 13, 1986, to November 25, 1986, being the most significant. To facilitate review and to assure completeness, submittals were required to conform to the same format as the information request sections of the RFS. Six copies of the submittal and two copies of a typical operation and maintenance manual were required from each Supplier. 1 Page 4 of 12 Prequalification packages were received from each of the following centrifuge Suppliers: 1. Bird Machine Company, South Walpole, Massachusetts. 2. Humboldt-Wedag, Atlanta, Georgia. 3. Ingersoll-Rand, Nashua, New Hampshire. 4. Sharples, Westminster, Pennsylvania. A fifth Supplier of specialty centrifuges largely used in the food processing industry, Centrico, obtained an RFS from the District but declined to submit a formal prequalification package after having reviewed the requirements of the project. Centrifuge Prequalification consisted of two distinct steps: 1. Initial Screening of Submittals. 2. Detailed Evaluation of Submittals. The initial screening process was established to eliminate any Suppliers who were unable to comply with four essential criteria: 1. Provide a horizontal, solid-bowl centrifuge. 2. Provide minimum bowl dimensions of 29 inch diameter x 72 inch length. 3. Provide evidence of installation of the minimum-sized machine (or larger) at a U.S. wastewater treatment plant. 4. Demonstrate capability to construct the centrifuges of stain- less steel. The District determined that each of the four Suppliers who pro- vided submittals satisfied these criteria, so all four were cleared for detailed evaluation. Detailed evaluation consisted of point-by-point examination and analysis of each submittal by JCE and District personnel under the direction of Jamel Demir and Bert Michalczyk, respectively. A Reviewer's Guide was prepared to assist the reviewers by establishing the weighted evaluation criteria, providing a numerically-based evalua- tion matrix, and providing a unified ratings system for presentation of final results. Furthermore, the reviews considered whether the proposed equipment contained deficiencies which independently or in conjunction with other deficiencies would render the equipment unacceptable for the specific application at the District and which would be considered nonresponsive in the competitive bidding process. Care was exercised in selecting reviewers so that engineering, operations, maintenance and commercial aspects were appropriately reviewed. 2 Page 5 of 12 The evaluations of individual reviewers were compiled by Jamel Demir and Bert Michalczyk and compared with the results of their indi- vidual evaluations. At a meeting in JCE offices on January 14, 1987, Demir and Michalczyk jointly analyzed the individual evaluations, recon- ciled the ratings and scores, and prepared final evaluation matrices for each Supplier. Attached Table I lists the 14 evaluation criteria utilized to determine the prequalification status of each Supplier; each criterion corresponds to a specific, detailed data request section of the RFS. Numerical weights for each criterion were established by the District and could not be changed by individual reviewers. The reviewer's task was to rate each criterion from 1 to 10; the criterion score was simply the product of the weight and rating. Minimum point scores were estab- lished for the seven most important individual criteria (underlined) and for the total point score. Failure to attain any of the minimum point scores, both individual categories and total, would result in failure of the Supplier to prequalify. Table II from the Reviewer's Guide interprets the 0-10 numerical ratings system used for evaluation of submittal responses. It provides a concise explanation of the ratings assigned individual criteria and is tied to the acceptabili ty or unacceptabili ty of the centrifuge on the District's project. Table II is intended to minimize variations in ratings among reviewers due only to differences in interpretation of the numerical scale. By standardizing the ratings scale, any numerical differences which do exist, either among reviewers or among evaluation criteria, will be due to the submittal response. 3 _._..___w_____.._____._~_..__."_._____._.,_,,._.,___"._..__..,_.~,____.~.."._.......,'_,_._... ____...._..._._._..,._.".........__,...., .w_._~'___"..,.__".".____.,___...,________._______ Page 6 of 12 TABLE I CENTRIFUGE PREQUALIFICATION WEIGHTS, RATINGS, AND SCORES Min. Score Max. on Key Evaluation Criteria Weight Rating Possible Cri teria 1. Design - Physical Description 8 0-10 80 40 2. Design - Manufacture 5 0-10 50 3. Expe rience - General (Mechanical) 10 0-10 100 50 4. Experience - Raw Sludge (Performance) 20 0-10 200 5. Expe rience - Experimental 5 0-10 50 6. Operation - General 2 0-10 20 7. Operation - Backdrive Mechanical 10 0-10 100 50 8. Operation - Backdrive Electronic Controller 10 0-10 100 50 9. Operation - Controls & Instru- mentation 15 0-10 150 75 10. Operation - Procedures 3 0-10 30 11. Operation - Safety 5 0-10 50 45 12. Maintenance 10 0-10 100 50 13. Service & Training 7 0-10 70 14. Compliance w/Commercial Terms 5 0-10 50 US 1,150 Minimum for Prequalification: 863 4 Page 7 of 12 TABLE II RATINGS GUIDE FOR INDIVIDUAL CRITERIA Rating Guidelines for Evaluation of Submittal Responses 10 Close to perfectly meeting the District's objectives. Optimum combination of aspects under evaluation supported by near unchallengeable technical docu- mentation outstanding capabilitiest facilitiest experience seldom obtained. 9 Solidly meeting the District's objectives. The combination of aspects under evaluation is well above average but not optimum. These are supported by convincing and well supported technical documentation. Excellent capabili- tiest facilitiest experience clearly apparent. 8 More than meets the District's objectives. The combination of aspects under evaluation is clearly above average and supported by sound technical docu- mentation. The capabilitiest facilitiest experience are very good. 7 Better than average levels in meeting the District's objectives. Technical documentation in combination with aspects under evaluation are better experience are good but not quite ratings. 6 Somewhat better than borderline acceptability in meeting the District's objectives. Technical documentation and subjective judgment are generally sound but are questionable in some aspects. Capabilitiest facilitiest expe- rience are a clear notch above borderline acceptability. subjective evaluations show that the than average. Capabilitiest facilitiest convincing enough to break into upper 5 Borderline acceptable in meeting the District's objectives for this aspect. Technical documentation and subjective aspects are uncertain and unconvincing across the board but on the whole are considered not sufficiently weak so as to be unacceptable. Capabilitiest facilitiest experience are borderline acceptable. 4 Unacceptable in meeting the District's objectives for this aspect. Technical documentation largely consists of very subjective and questionable claims. Capabilitiest facilitiest experience are not acceptable. 3 Clearly unacceptable in meeting the District's objectives for this aspect. Incomplete and questionable technical documentation do not at all substanti- ate claims made. Capabilitiest facilitiest experience clearly not acceptable. 2 Very clearly unacceptable in meeting the District's objectives for this aspect. Very weak technical documentation of a questionable nature offered to substantiate claims. Capabilities, facilities, experience very clearly unacceptable. 1 Totally unacceptable in meeting the District's objectives for this aspect. Completely unfounded documentation for claims made. Virtually nonexistent capabilitiest facilities, and experience. o Completely unacceptable in every aspect. 5 ..,-__.._...~._~,_.__.._."_,_,.____._.~_,u,__,___~_..~ ___". ___._.__.______'.__.___~___._,.._ Page 8 of 12 ATTACHMENT B ANALYSIS OF PREQUALIFICATION Summarized in this section are the principal factors which deter- mined the numerical ratings and scores assigned to Bird Machine Co. for each evaluation criterion. The subheadings of this section of the report correspond to each of the fourteen evaluation criteria previously presented in Table I; a numerical summary is presented in Table III. DESIGN - PHYSICAL DESCRIPTION. The actual mechanical design of the centrifuge is important since the internal components of the machine are related to a given unit's ability to perform, the range over which it can be controlled, and the degree and ease of maintenance. It is difficult to predict performance and maintenance requirements from assembly draw- ings alone; these can only be evaluated by experience. Nevertheless, the quality of components used in assembling the centrifuge is an indication of the quality of the centrifuge itself. Bird documented the capability to construct the centrifuges of stainless steel and to provide acceptable abrasion resistant materials in high wear areas. Total connected motor horsepower was approximately 175. The principal mechanical components of the centrifuge - including the uni t itself, the backdri ve, gear uni t, and main drive motor were consistent with the preliminary specifications. The main bearing lubri- cation systems proposed by Bird was generally well designed. Noise suppression features were adequate. However, Bird does not provide a casing vent as required by the District for odor control. Hydraulic components of the backdri ve are totally enclosed in metal boxes making access for maintenance or inspection difficult. DESIGN - MANUFACTURE. Bird appears to have good facilities and techniques for manufacture and assembly of their centrifuges. Bird has an in-house qua Ii ty assurance group and conducts a factory test of the fully assembled centrifuge. EXPERIENCE - GENERAL. General experience is intended to evaluate the ability of a given centrifuge to operate satisfactorily from a mechanical standpoint over long periods of time without significant breakdown or operational failure. This is not necessarily dependent upon the ability of the machine to successfully dewater raw sludge. Bird proposed its new high G-force centrifuge for the District's project. This design is a significant departure from the low G-force centrifuges Bird has previously manufactured and provided to municipal wastewater treatment plants. The only known fully operational installa- tion of this new design is at Kingsport, Tennessee; where three Model 4900 units (same size as proposed for District) have been in service since 1984; however, these machines have accumulated a group total of only 1,200 operating hours over three years. Although two new 1 Page 9 of 12 Bird Model 4900 units are being installed in Louisville, Kentucky, and two new Models 3700 (smaller than proposed for District) have just become operational (January, 1987) at South Tahoe Public Utility District, there presently exists no long-term track record to verify the dependability and durability of the new design. Furthermore, the backdrive used on the South Lake Tahoe installation is not the same as that proposed for the District. In addition, no information was presented on how, if at all, the low speed machines were to be redesigned to accommodate the stresses of high G operation. EXPERIENCE - RAW SLUDGE. The District produces a mixture of undi- gested raw and waste activated sludge, a sludge that is not common in the wastewater industry and a sludge which is historically difficult to dewater. This is because the water associated with the solid phase of the sludge is more closely bound than is the water in a conditioned (e.g., an aerobically digested) sludge. It is because of the difficulty in water removal that there is a direct impact on dewatered cake dry- ness. The water content of the sludge cake is a very important parameter to the District because of the use of incinerators. A wetter sludge cake requires that more gas be fired in the furnaces to dry and burn the sludge. Thus, a drier cake has a direct economic benefit to the District. Furthermore, if a centrifuge is unable to adequately dewater the raw sludge once in operation, the only practical remedy available is to increase polymer dose. This, too, has a very direct fiscal impact on the District because of the cost of the polymer. An increase of only one pound per ton in polymer usage (about a 12 percent increase) is equiva- lent to a present worth cost of $300,000, or approximately two-thirds the cost of a new, fully-equipped centrifuge. Furthermore, when dewatering problems arise, polymer consumption can increase from 5 - 25 1 b/ton, which would represent a very substantial increase in present worth costs. In summary, the manufacturer's experience in dewatering raw sludge will provide a greater probability of success as measured by dewatered cake solids and polymer consumption and thus, will be of a great benefit to the District. Bird presented information on only one installation (Willoughby, Ohio), which dewaters raw primary/waste activated sludge mixtures. This installation uses a smaller machine than is proposed for the District and which is the older, low G-force design. Therefore, it is not indicative of how well the high G-force machine proposed for the District would perform. Operating data for the South Tahoe installation was not submi tted by Bird, but is very limi ted since the unit has just been started up. EXPERIENCE EXPERIMENTAL. Bird provided a very brief summary of raw primary/thickened WAS sludge dewatering results from a pilot scale test at Cobb County, Georgia. Although the summary indicated ability to dewater sludges similar to the District's, the data provided did not establish that the pilot scale unit is of the same design as the full scale machine proposed for the District; the omission of the test run data also makes the summary less convincing. Similarly abbreviated summaries were provided on less directly applicable mixtures of 2 Page 10 of 12 anaerobically digested sludges. Also included were the results of a pilot scale, side by side test from Louisville, Kentucky, where Bird competed against other Suppliers in dewatering of Zimpro sludge. Bird won the evaluated bid based upon high solids recovery, even though it produced wetter cakes (by several percentage points) and used more polymer - 5 to 10 percent more polymer than its competitors. However, the District's application is such where cake dryness and low polymer consumption are of paramount concern; recovery for the District's project is of comparatively minor concern. OPERATION - GENERAL. The main drive motors, main bearing lubrica- tion systems, gear units or substitutes function as expected. Flow regimes for the high "G" force machines of Bird is counter current. OPERATION - BACKDRIVE MECHANICAL. Bird utilizes a hydraulic back- drive which, of itself, is compatible with the type of automatic control- lers specified. OPERATION - BACKDRIVE ELECTRONIC CONTROLLER. Operation of the centrifuge backdri ve is a very important criteria to the success of the project. It is through the backdrive that proper dewatering is opera- tionally controlled. The backdrive is the system which most directly controls cake dryness. It is important that the backdrive be able to respond quickly and efficiently to changes in the feed sludge (both concentration and primary/WAS sludge blend). If the backdrive is unable to do so, the results will be the need to increase polymer feed which has severe economic repercussions as discussed above. Bird's electronic backdrive controller is an analog system which is neither digital nor programmable. A sophisticated system is required at the District so that process performance can be consistently maintained in response to a varying sludge feed stream. By doing so, operating labor will be minimized and the stable operation of the downstream furnace can be assured. A version of the controller is installed at another Bay area facility whose experience showed that the controller functioned erratically in torque-based automatic control. Its cali bra- tion procedure is cumbersome and requires an instrumentation technician to adjust. The need to be able to quickly and easily adjust the back- dri ve setpoints is particularly critical in the District's application because a raw sludge stream of varying quality is being dewatered. This necessitates the capability to make adjustments by the District's opera- tions staff on a routine basis. OPERATION - I&C. The degree of automation and the ease with which it interfaces with existing Programmable Logic Controllers (PLC's), tremendously influences the controllability of the system and simplifies operation of the centrifuges. This allows more straightforward control of the unit, thus minimizing operator attention. The need to increase polymer dose or the chance for the development of a wetter cake is also minimized. The issue of prime importance to the District on I&C is the willingness of a Suppliers to provide PLC's, specifically PLC's compat- ible with existing Gould Modicon units, in lieu of hard-wired relays for 3 Page 11 of 12 their control panels. The District requires compatibility with existing Gould Modicon PLC's, which needs the reprogrammability features inherent in the PLC, and thus will benefi t operationally and economically from eliminating most of the conduit runs required by hard-wired systems. Bird proposed a General Electric Series One Programmable Logic Controller (PLC). Bird did not refuse to consider use of a Gould unit, but stated a preference for the General Electric uni t because of "bad experiences" with the Gould Modicon Unit. The General Electric PLC lacks the capacity and sophistication required for the District's project and is not compatible with the District's existing Gould unit. The PLC proposed is capable of only 1,770 words of memory, 112 inputs, and 112 outputs. It is not capable of any analog inputs or outputs. The sophisticated requirements of this project were established to allow the dewatering equipment to be fully interfaced with the District's control philosophy and existing hardware. Furthermore, the use of a Gould compatible PLC will significantly reduce the cost of installing and main- taining separate hard wiring and control devices. OPERATION - PROCEDURES. Bird cited acceptable procedures for chang- ing bowl speeds, optimizing machine performance, and changing pool depth. OPERATION - SAFETY. Bird cited safety features of its machine including belt guards, interlocks, shaft enclosures, etc. No reports of death or injury attributable to the centrifuges were noted. MAINTENANCE. The ease of maintenance is of importance to the District. The evaluation focused on the requirements for scheduled main- tenance as well as the occurrence of unplanned maintenance at existing installations. Scheduled lubrication and preventative maintenance schedules out- lined by Bird appear reasonable. It is expected that bearing life and hard surfacing material life should be acceptable for the unit and that major task labor requirements are acceptable. Operation and Maintenance manuals were adequate for Bird. Bird also provided a detailed spare parts list, but without prices. Bird indicated local sources are accept- able and available for many parts such as bearings, seals, and belts. Bird would provide critical machining dimensions through local represen- tatives. As described in "Experience - General," no maintenance history exists for the Model 4900 unit proposed for the District. This is primarily due to the very limited operating time of those units. SERVICE AND TRAINING. Bird maintains West Coast sales and service offices in the San Francisco Bay Area. The training and service staff is experienced. COMMERCIAL TERMS. Bird is a large, financially solvent corporation and is bonded and insured. Table III presents a numerical summary of the evaluation done for Bird Machine Co. 4 Page 12 of 12 TABLE I II SUMMARY OF EVALUATION RATINGS No. Cri teria Weights Rating (1-10) Bird 1. Design - Physical Description 8 8.0 2. Design - Manufacture 5 9.0 3. Experience - General 10 3.5* 4. Experience - Raw Sludge 20 5.0 5. Experience - Experimental 5 5.0 6. Operation - General 2 8.5 7. Operation - Backdrive Mechanical 10 8.5 8. Operation - Backdrive Electronic Controller 10 3.5* 9. Operation - I & C 15 4.5* 10. Operation - Procedures 3 8.5 11. Operation - Safety 5 10.0 12. Maintenance 10 7.0 13. Service & Training 7 8.0 14. Commercial Terms 5 9.0 WE IGHTED TOTALS 720* Notes: * Unacceptable, did not achieve minimum score. 5 . Centri._ Contra Costa Sanitar) District BOARD OF DIRECTORS PAGE 1 OF 1 POSITION PAPER BOARD MEETING OF March 19, 1987 NO. VII 1. REAL PROPERTY 1 SUBJECT DATE March 12, 1987 AUTHORIZE AGREEMENT TO EXCHANGE REAL PROPERTY (ORINDA CROSSROADS) FOR AN EASEMENT AND $65,000 BETWEEN THE DISTRICT AND WALLACE-OLSON ASSOCIATES TYPE OF ACTION AUTHORIZE AGREEMENT SUBMITTED BY INITIA TING DEPT./DIV. Paul Morsen, Deputy General Manager Administrative Department ISSUE: Board authorizati on is requi red for the exchange of real property by the District. BAa<GROUND: Di strict staff and representatives of Wall ace-Ol son Associ ates (WOA) have been discussing the exchange of the District's property at the end of Bryant Way, Orinda, Cal Hornia, adjacent to the Orinda Crossroads Pump Station, for an easement and a cash consideration. The District parcel is approximately 7,027 square feet, Assessor's Parcel No. 237-010-002. Both parties have reached an agreement wherein the District Grant deeds the parcel to WOA and WOA grants an easement to the District and pays the District $65,000 for the property exchange. The Agreement contains the following major points and is in the best interests of the District to accept the Agreement. o District receives an easement of approximately 6,800 square feet. o District receives $65,000 cash. o District at all times has access to the pump station during construction. o WOA holds District harmless for WOA property as a result of District's use. o WOA will do architectural or aesthetic improvements to the District's pump station to the extent required by the City of Orinda. o To the extent that the WOA structures and the District's pump station locations necessitate that an odor control project be undertaken, WOA will participate in such proj ect and such proj ect shall be undertaken at no cost to the Di strict. The exchange of land is exempt from CECA per local guidelines 18.5 and 18.12 (State Guidelines Sections 15304 and 15312). REcotIEtI>ATION: Authorize the exchange of Parcel 273-010-002 to Wallace-Ol son Associates for an easement and $65,000, and authorize the Deputy General Manager to execute the Agreement and the necessary documents. REVIEWED AND RECOMMENDED FOR BOARD ACTION . Centr~. Contra Costa Sanitar) District BOARD OF DIRECTORS PAGE 1 OF 1 POSITION PAPER BOARD MEETING OF March 19, 1987 NO. IX. LEGAL/LITIGATION 1 SUBJECT DENY ClAIM FROM WALTER AND ELIZABETH PRICE CONCERNING PROPERTY AT 40 LOS ALTOS ROAD, ORINDA DATE March 12, 1987 TYPE OF ACTION DENY ClAIM SUBMITTED BY Jack E. Campbell, Administrative Operations Manager INITIATING DEPT./DIV. Administrative/Risk Management ISSUE: A claim for $54,334 has been received from Walter and Elizabeth Price concerning District requirements that were involved with a sewer installation serving their home at 40 Los Altos Road, Orinda. BACKGROUND: The claimant alleges that Central Contra Costa Sanitary District staff required unnecessary, capricious, arbitrary, and onerous conditions for their project to replace a failing septic tank with a connection to the Central Contra Costa Sanitary District sanitary sewer system. They allege that as a result of this, additional and needless costs were incurred amounting to at least $54,334. The claim has been investigated by the Administrative Operations Manager and Deputy District Counsel; it also has been reviewed by the Risk Management Committee. No basis for the claim has been found, and the staff recommends that this claim from the Prices be denied. The staff will brief the Board in closed session on this claim. RECOMMENDATION: Deny the claim from Walter and Elizabeth Price alleging that District staff actions caused additional costs for their sewer connection to the District and refer to staff for further action as necessary. JEC RECOMMENDED FOR BOARD ACTION INITIATING DEPT./DIV. Lt-