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Home My WebLink AboutAGENDA BACKUP 03-05-87 . Centrl Contra Costa SanitarJistrict .. BOARD OF DIRECTORS PAGE 1 OF 3 POSITION PAPER BOARD MEETING OF MARCH 5, 1987 NO. IV. DATE Februar 24, 1987 TYPE OF ACTION MIl NW CONlRACT ItJTHORIZE FUNDS BIDS AND AWARDS 1 SUBJECT AUTHORIZE AWARD OF CONlRACT FOR SERVICE AIR COMPRESSOR INSTALLATION (DSP 10021) AND AUTHORIZE $58,740 FROM SEWER CONSlRUCTION FUNDS SUBMITTED BY Dav i d Rei ndl INITIATING DEPT./DIV. Plant Operations Department eer ISSUE: On February 19, 1987, sealed bids for DSP No. 10021 were received and opened. The Board of Directors must award a contract or reject proposals within 60 days of the opening of sealed bids. BACKGROJND: The Treatment Plant service air system supplies both service and instrlJllent air and is essential for the operation of the Treatment Plant. The existing Worthington service air compressors are unreliable and require excessive maintenance. Critical parts are not available for these units since they are no longer in production. For these reasons the Board of Directors authorized $95,000 in November 1986, for the prepurchase of a new serv ice ai r compressor and for engineering-related work. The prepurchase service air compressor has been delivered to the District and the installation contract has been bid. Sealed bids for the installation of the service air compressor were received and opened on February 19. The bid tabulation is attached. The low bidder is Dalziel Corporati on at $44,400. The engi neer' s estimate prepared by Di stri ct staff was $43,000. A post-bid/preconstruction cost estimate is attached. The total project cost is estimated at $153,740. At this time $58,740 in additional funds are required for the installation contract, construction contingencies, and force account costs for constructi on management and i nspecti on. This project is included in the Ten-Year Capital Plan as a Priority A item. District staff has concl uded that the proposed project will have no significant effect on the environment and has filed a Notice of Exemption. RECOMMENDATION: Authorize award of contract to Dalz iel Corporati on, the lowest responsible bidder, for $44,400 to install service air compressor. Authorize $58,740 in Sewer Constructi on Funds for the constructi on contract DSP No. 10021 and related force account and contingencies. REVIEWED AND RECOMMENDED FOR BOARD ACTION 1302"'.9/85 m [)J€ -/vi O'IB ffiOJ ECT BUOOET SERVICE AIR COMPRESSOR NO. 4 DISTRICT ffiOJ ECT 10021 Expenses Incurred to Date: Prepurchased Items Atl as - Copco ZR3 A Cooling System Components Design & Drafting (2/9/fSl FMIS) $ 72,420 6,050 8,641 $ 87,111 *$95,000 10% Conti ngency Funds Requested At This Time Total Proj ect Budget *Previously Board Authorized (11-5-86) Installation Expenses Installation Contract (Dalziel Corp.) 44,400 Proj ect Management & Inspecti on 6,000 District Forces: Instrument Shop 1,500 Mechanical Maintenance 1,500 $ 53,400 5,340 $ 58, 7 40 $58,740 $153,740 ..~ +-' s::: OJ E ..c: u fa +-' +-' c:r: ,.., ~)J ~ - ~... ..v ef ..... fW ~f . ~... eW ~a ..... M iW 1.0 ~f 0 I ~ 0 sS::: ~ti 0 u~ . i~'- ~ ~ ~f LO ~ LO gl~ ,..... u :;; ,... ,+-l +- ~I~ .... ,... ~ I~ ~ ~.. ~ o...l~ :lE: it: ~I ~ I..LJ ~~ ~ ~ ; s. V) ~ >- ~~ ~ V) ~. c::: ~ It .,... ;: ;1; ...... OJ:;; ~ i" c:r: :i5 ~ I..LJ ~~ ~ u ;;:: ...... .<1 >- ~ c::: s..'- ~i I..LJ V) o C1 1 ~ 5 ..... 0 ..... ~ ~ z: OJ 'r- -i: ~ 0 N ~ iC ...... j! : 5 ~ fa :If c:r: I u ...... u. =~ ...... Cl !i 0 .,... :lE: i i I ~ wa: I I B w I:! . , ~ sl i I .. i ~ d c ... q = ~ > to. Cl S .. I .. s..J s.. .~ ~ ~ s::: ~ .@. .. .~ ~ ~ ;; . I o ~ ~ ~ i.. J:l s.... - z 2- 'r- g VI Ole o c.: s::: s:::o 3 ~ s::: ~ r- :;; 0 r- :) ~ ~ ~ ~ ! r- fa +-' +-' Cl ~ ~z r l~ ~ 0 ; I - ..... .... I ... e Z i" - !i j Ii .... & , . Centr.. Contra Costa Sanitar) District BOARD OF DIRECTORS PAGE 1 OF 6 POSITION PA PE R BOARD MEETING OF March 5, 1987 SUBJECT AND PRODUCTS COMPANY, INC., AUTHORIZE EXECUTION OF AMENDMENT NO.2 TO THE JlGREEMENT WITH JAMES M. MONTGOMERY, AND AUTHORIZE $2,707,100 FROM THE SEWER CONSTRUCTION FUND FOR PUROiASE OF SEWER PIPE FOR THE SAN RAMON V ALLEY TRUNK SEWER, PROJ ECT 4224 NO. IV. BIDS AND AWARDS 2 DATE March 2, 1987 TYPE OF ACTION AUTHORIZE AWARDS AUTHORIZE FUNDS AUTHORIZE JlGREEMENT SUBMITTED BY Curtis W. Swanson Principal Engineer INITIATING DEPT./DIV. Engineering Department Engineering Division ISSUE: On February 27, 1987, sealed bids were opened for supplying approximately 30,000 feet of 54 and 60-inch diameter sewer pipe for the San Ramon Valley Trunk Sewer Proj ect. The Board of Di rectors must authorize award of the purchase order or reject all bids within 60 days of bid opening. Board authorization is also required to expend sewer construction funds, and execute amendments to engineering agreements BACKGROUND: The District is planning to construct a new 11.5-mile trunk sewer and force main to serve the San Ramon Valley. Portions of the existing trunk sewer through Danvllle and Alamo are at or near capacity. The Board of Directors approved the trunk sewer project on October 28, 1986. Additional information regarding the project is. included in Attachment 1. During 1987 approximately 7.5 mlles of trunk sewer out of the total 11.5 mlles will be constructed. Construction of the 7.5 mil es of sewer will be accomplished by the prepurchase of 6 miles of sewer pipe, a contract to install the 6 miles of prepurchased sewer pi pe, and a conventional furni sh-and-install contract for the remaining 1.5 miles. As a mitigation measure for project impacts, the District is attempting to avoid major construction during wet weather. Therefore, the prepurchase of the 6 mil es of sewer pi pe is necessary to all Qtl constructi on to begin as soon as possible after award of the installation contract. The specifications and bid documents for the sewer pipe purchase order were adverti sed February 10 and 17, 1987. Three bi ds rangi ng from $2,639,061.00 to $2,397,466.05 were received on February 27, 1987. A tabulation of the bids is shQtln in Attachment 2. The engineers' estimate for the sewer pipe is $4,220,000. District staff, assisted by James M. Montgomery Consulting Engineers, conducted a technical and commercial evaluation of the bids received and have concluded that Concrete Pipe and Products Company, Inc. of Sacremento, California is the lQtlest responsible bidder with a bid of $2,397,466.05. All three bids received were approximately 45 percent belQtl the engineer's estimate. The estimate was based on cost quotations from pipe suppliers received 1 ast fall and a compari son with actual bi ds for other proj ects. Staff believes that there are three reasons for the discrepancy between the engineer's estimate and the bids. The first reason is the current competitive environment in the concrete pipe market. All three bidders mentioned this as a factor for this project. In addition, one of the bidders is attempting to establish a foothold in REVIEWED AND RECOMMENDED FOR BOARD ACTION f)tkJ 1302A.9/85 CWS DRW RAB KFL SUBJECT AUffiORIZE /lilARD OF PURCliASE ORDER TO CONCRETE PIPE AND PRODUCTS COMPANY, INC., AUffiORIZE EXEaJTION OF AMENDMENT NO.2 TO ffiE AGREE~NT WITH JAMES M. MONTGO~RY, AND AUffiORIZE $2,707,100 FROM ffiE SEWER CONSTRUCTION FUND FOR PURa-tASE OF SEWER PIPE FOR ffiE SAN RAMON V ALLEY TRUNK SEWER, PROJ ECT 4224 POSITION PAPER PAGE 2 OF DATE March 2, 1987 6 the San Franci sco Bay area which contri buted to the favorabl e bi ds. The second reason is the large scale of the San Ramon Valley Project which is 5 to 10 times larger than most sewer projects in the recent past. Because of the large quantity of sewer pipe to be furnished, suppliers are able to reduce their unit costs. The third and final reason is that the administrative costs of the suppl ier are reduced by dealing directly with the District instead of through a contractor. District engineering and purchasing staffs will administer the purchase order. Engineering services, including shop drawing review and inspection at the manufacturing facility, will be provided by James M. Montgomery Consulting Engineers (JMM). These services will be provided under Amendment No. 2 to the agreement with J MM for desi gn of the San Ramon Vall ey Trunk Sewer on a cost reimbursement basis with a cost ceiling of $52,700. A total authorizati on of $2,707,100 fran the Sewer Construction Fund is requested for purchase of the sewer pipe, administration of the purchase order, engineering services during manufacturing, and periodic inspections at the pipe manufacturing facility. A summary of the funds being requested is included in Attachment 3. A contingency of 10 percent of the purchase order price is requested as part of the authorization. This contingency is intended to cover the cost of any change orders including increases in the quantity of sewer pipe to be supplied. The purchase order is based on unit price costs and an estimated quantity of pipe. The actual quantity of sewer pi pe may be more or 1 ess than the estimated quantity due to field conditions and changes during the final stages of design and constructi on. To comply with the California Environmental Quality Act, the District prepared an EIR for this project. The EIR was certified by the Board of Directors on October 16, 1986. This project is included in the 10-year Capital Improvement Plan under the Priority A category <Title: San Ramon Valley Project-Phases 1,2, and 3). RECOMMENDATION: Authorize award of a purchase order to supply sewer pipe for the San Ramon Valley Trunk Sewer, Project 4224, to Concrete Pipe and Products, Inc. as the lowest responsi bl e bi dder. Authorize the General Manager-Chi ef Engi neer to execute Amendment No. 2 to the agreement with James M. Montgomery Consul ti ng Engineers. Authorize $2,707,100 fran the Sewer Construction Fund for the purchase order and related costs. --------.. 1302B-9/85 ATTAOiMENT 1 CENTRAL CONTRA COSTA SANITARY DISTRICT SAN RAMON VALLEY SEWER IMPROVEMENT PROJ ECT PROJ ECT DESCRIPTION Introduction The San Ramon Valley Sewer Improvement Project consists of the installation of approximately nine and one-half miles of large diameter grav ity trunk sewer and two mil es of force mai n. The trunk sewer and force main will be constructed from Larwin Pump Station north to a point near the intersection of Danville Boulevard and Rudgear Road in southern Wal nut Creek. At the northern poi nt, the proposed trunk sewer will connect with both the existing 36-inch diameter trunk sewer that nC* serves the San Ramon V all ey and the proposed 66- inch di ameter dow ntow n Wal nut Creek bypass sewer. Sewer Al iQnment The sewer al ignment is the Southern Pacific right-of-way for the enti re length of the project. This alignment will cause the least disruption to traffic, commercial, and other activities in the valley communities. The District entered into an agreement in December 1985 with Contra Costa County to purchase a 20-foot-wide surface easement and a 12-foot-wide subsurface easement within the rail road right-Of-way. The cost for the San Ramon Valley portion of the sewer easements was $2,959,000. At the former railroad station site in Danville, the District does not have the surface and subsurface easements that it has in the rest of the ri ght-of-way. The Di stri ct does have the ri ght to use an easement acqui red by Contra Costa County for transit and underground util ity purposes in this 1,500-foot-long section. The County's easement is 30-feet wide. District's rights would be second to the County's rights in this section, and the sewer would be under County's planned transit system whether that be alight rail system or a dedicated busway. Staff evaluated three alignment options around the former station site. Two of the options, Hartz Avenue and El Dorado Street had significantly higher construction costs and more impacts on the community than the County easement. The third alignment option, Railroad Avenue, has higher constructi on costs than the County easement. Staff has deci ded to use the County easement as the al ignment around the former rail road station based on 1 C*est constructi on cost, fewer constructi on constrai nts, and minimizing community impacts. Sewer Size The desi gn of the sewer is based on the ul timate buil dout popul ati on of the San Ramon Valley and the infiltration/inflC* criteria developed as part of the Coll ecti on System Master Pl an prepared for the Di stri ct by Camp, Dresser & McKee. The design life of the sewer is 50 years. The Board of Directors previously decided to use Growth Scenario No.4 as presented in the project EIR for designing the sewer. Growth Scenario No. 4 assumes an ul timate popul ati on of 142,000 and development of the Dougherty Valley subarea of the San Ramon Valley. Based on this popul ati on estimate, the grav ity sewer will have a nani nal size of 42 inches in diameter fran Norris Canyon Road to Sycamore Valley Road. Fran Sycamore Valley Road to San Ramon Valley Boulevard, the sewer has a diameter of 54 inches. Fran San Ramon Valley Boulevard north to Danville and Rudgear Roads, the sewer will be 60 inches. The force main fran Larwin Pump Station to Norris Canyon Road will naninally be 16 inches in di ameter. Schedul e Because of the size of the project, the trunk sewer was initially planned for construction in three phases. The first phase is a four and one-half mile section fran La Serena Avenue in Alamo to St. James Court in Danville. The second phase is approximately three miles long fran La Serena Avenue north to a point near Rudgear Road where the sewer will connect with the new Walnut Creek downtown trunk sewer. The third phase will extend four mil es fran St. J ames Court south to the Larw in Pump Station. The third phase includes two miles of force main. Construction of the first and second phases of the sewer will be during 1987. During prel iminary design, staff determined that the first and second phases had to be constructed during 1987 to provide adequate sewage capacity. Because of the amount of sewer being installed and to avoi d constructi on duri ng wet weather, prepurchase of a maj or portion of the sewer pipe will be necessary. Prepurchase of the pipe will allow installation to begin as soon as possible after award of the construction contract. The third phase of the sewer is currently scheduled for 1989. The th i rd phase is not needed as soon as the fi rst and second phases. Construction of Phase 3 may be deferred for two to three years if effort must be devoted to other higher priority District projects. Proj ect Cost Estimate The preliminary design-level estimated project cost is $31.0 million. This estimate consists of: Construction, including Contingency Construction Management De sign T ota 1 $29,000,000 1,300,000 700,000 $31,000,000 The estimated cost of the three phases of the trunk sewer project are: Phase 1 Phase 2 Phase 3 T ota 1 $14,000,000 7,500,000 9,500,000 $31,000,000 ATTACHMENT 2 Central l Jntra Costa Sanitc.. y District SUMMARV OF BIDS PROJECT NO. 4224 - San Ramon Valley Trunk Sewer DATE February 27. 1987 2: 00 p.rn ENGR.EST.~ 4.220.000 LOCATION Martinez. CA c: ~ BIDDER (Name, telephone & address) BID PRICE Ameron Pipe Group ( 415 ) 463-0544 $ ZI6~91061,oo 3 P.o. Box 5219. Pleasanton. CA 94566 - Concrete Pipe & Products Co. ( 916) 381-3910 $ 21 ~q"7J Lf- ~6, 0 S I P.o. Box 28758. Sacramento. CA 95828 - Hydro Conduit Corporation ( 707) 255-3035 $ ZI5'~J4-bb.08 2. P.O. Box 3508. Napa , CA 94558 - ( ) $ f-- ( ) $ ~ ( ) $ ( ) $ --- .- ( ) $ f-- ( ) $~ - -----~-_..--- ----- --- -_." --- ----------- -------- '--- .. .- . -- ." -~ Oisuicl PREPAREOBVCi A~ DATE :z./2-7/?2 rurti<; l~. Swanson I I SHEET NO. I OF J ?<.n'l.G 'o.c: ATTAa-iMENT 3 SAN RAMON VALLEY SEWER IMPROVEMENT PROJECT DISTRICT PROJ ECT 4224 SEWER PIPE PREPURa-iASE COST ESTIMATE DESCR IPTI ION FUNDS REQUESTED PURa-iASE ORDER Purchase Order $2,397,466 100% Contingency - 10% $ 239,534 10% Construction Management James M. Montgomery $ 52,700 o Engineering during Manufacturing and Inspection 2.2% District Staff $ 17,400 o Administration/Engineering 0.7% Total Funds Requested $2,707,100 112.9% . Centra.. ~ontra Costa Sanitar~ .listrict BOARD OF DIRECTORS I PAGE 1 OF 2 POSITION PAPER I BOARD ME~~~~~F 5, 1987 SUBJECT NO V. CONSENT CALENDAR 8 AUTHORIZATION FOR P.A. 87-6 (DANVILLE) TO BE INCLUDED IN A FUTURE FORMAL ANNEXATION TO THE DISTRICT DATE February 24, 1987 TYPE OF ACTION ACCEPT ANNEXATION FOR PROCESSING SUBMITTED BY Dennis Hall, Associate Engineer INITIATING DEPT.lDIV. Engineering Department/Construction Div. Pa rce 1 No. Area Owner Address Parcel No. & Acreage Remarks Lead Agency 87-6 Danville (78D6 ) Ka ren Q. Brown 305 Cross Road Danville CA 94526 196-110-023 (1.08 Ac) Existing house with margin~ septic system. Owner wishes to freeze in the $l,OOO/acre annexation rate. District to prepare "Notice of Exemption" CCCSD RECOMMENDATION: Authorize P.A. 87-6 to be included in a future formal annexation. REVIEWED AND RECOMMENDED FOR BOARD ACTION INITIATING DEPT./OIV. .d 11 ~Itf 7/!JV 1302" .9 '65 DH JSM RAB GEN&~~':; ROGER De,LAN ''}..., J1 s~_ _ , .1l~ 99 :}f:}~:: " ~6. ~= ~:il~~!~I~ ____ - -. ~i.~ ,7 loj *:? ," i';::;4 "'~ "~ 7W) ~'l\" '~:"I ."..~ I ~o. 7"ps AC / ",,,,,,,,",,,,.,.. , ...~,,~.~..'.~\~Sb40 3:/.11 ~ ~T.~,....n ~ ~..V~ '" *...~.. ~ ~ 3: '... ~ 25 (.'!i'71 10 ..,..,.~.,~~ ;"O~~ ~ q~ ~ Iim. ,~~ ~ ;~ L~ . ~l' ~_ _ -~ ...... ~ }I , e.30 j VALLEY 3738AC 2.52 AC 3 09 AC ~' I.OAe g 62 AC 4612 AC ~ ~MJ 244 AC -JII :! ~ kl liD ~ - .' -: : 198AC >/>i::: :..{ fF 136AC 220 AC 2.08 AC 131 At !ii;' '" ~ .:. J .... '" '" to . HI8H SCHOOL DI RICT f ~ ~J ~, ,./"." - 1.I0AC 60AC .3IAC II?"AC ..~:.,:~..cr' .; 20A::::"~ .~ :\1 ............... .............. 'G.!,'?5'!:f'...:...:.:.:.:.:...:...... 3 II At X/:..'::::':'.://:\I~\j(r{))~~ 2! ;i::::'~,::?': ) '9AC 4.89. ~...... f!'29AC '" ... .... : :.~::::~{ 2.45 AC . ........... t::~t:: {::a::{ . IAH RAMON ION 43. liD AC . , I I ,,-l ~m . ~.! ~.; "74V:< .:: ~ ( ijf,@- - I U B 117AC 215 AC OAC IOOA l 275 AC rl.- .. ....1 ~ tL >r'5 !-= I ~ OR l- 981AC .282 AC AC ':~ ':: Jt - LA IOAe 115 AC o OA t ClAe 1.0AC 122 A "~ 10AC v..\'\~ I.OAC .90AC ... IC, ~ 107 :~:.... I : tI ~ ;. bf: .,' 'u" ....... . _ ..,:. NE.X , ~ ~ F 116 J _~ loeAC '03 lQAC ...,"';i'~~ ~~~ : , 15A 1 1.24AC: 105AC I I I II-- I ), 107AC:1I-- ,',' \. L----1 , .94AC .......... .... YfEIIIIl '5.0AC .... ~ . . i!> ~Hi.~.'~, .il ::i~~~/: . :-:::::;:::;:;'0 79 T 60 723 _ ,../. - '~61-" ~ :a ~ " ~I >--<< , <' II ... ... ..0 \"1 ~.::." 85 ." ~. ~ ~ 2.067AC : <( ~ ~~ ~ 1.01AC' .~ i ,.I ~ -- .'.<.<::.:':'::::~ -L- ... 17 ~~ "-r. ~ ~ / ~ J/ .A. '\ GREEN VA '.7 ~ ... .... - .. ':::.~~::~~:!f!' ii". ""i, ..:..:., ';;:2 411 "lii!:.. . ~:'9 ~~~ 44 "e i![11ii':.::/ :~. ~;y ~I::::';;:.:;:.::' .. I .,~; ~ It :a~\\i, _ ~;.;;:...' ~ '1-. '" t'" <' . 33 .' </. ;\, . ." .. :.: ,~."'" '" ... -~.,<\ 47 . Centr&. Contra Costa Sanltar) District BOARD OF DIRECTORS PAGE 1 OF 3 POSITION PAPER BOARD MEETING OF March 5, 1987 NO. v. CONSENT CALENDAR 9 SUBJECT ADVISE THE BOARD OF THE CLOSE OUT OF THE ESCOBAR STREET SEWER REPLACEMENT PROJECT (DP 4236) AND RETURN $8,299 TO THE SEWER CONSTRUCTION FUND DATE February 23, 1987 TYPE OF ACTION INFORMATIONAL SUB~b1fD~imczak, Senior Engineer INI1;JA TltiG DEPT./DIV. tng1neering Department/ Construction Division ISSUE: All work has been compl eted on the Escobar Street Sewer Repl acement Project in Martinez, and this project can now be closed out. BACKGROUND: District sewer facilities in Escobar Street were deficient and in need of repl acement. The city of Martinez was in the process of reconstructing Escobar Street including the replacement of the Alhambra Creek bridge. An opportunity was presented to remedy the sewer deficiencies concurrently with the city's work on Escobar Street. District staff developed a solution which involved redirecting sewage flows to a nearby gravity system and abandoning an existing siphon under Alhambra Creek. This project provided. for the installation of approximately 210 lineal feet of 8-inch and 14-inch diameter sewer main, 240 lineal feet of 4-inch and 6-inch diameter sewer laterals, and other appurtenant structures. Attachment No. 1 is a plot plan of the project area. The contractor, Billing's Plumbing, Inc. of Martinez, commenced work on October 6, 1986 and substantially completed the contract work on October 20, 1986. The contract completion date was October 31, 1986. The project was accepted by the Board on November 20, 1986. The Engineer's Estimate for the construction cost was $45,000. The original construction contract was for $36,345. The total contract amount paid to Billing's Plumbing was $32,712. The original contract amount was reduced by $1,342 due to small decreases in the installed quantity of several contract items paid at contract unit prices. In addition, there were two change orders totaling a net credit of $2,291 issued for the extra cost to install two commercial backwater valves to protect existing businesses and the deletion of driveway repl acement work from the contract. Due to the construction activities of the contractor working on the Alhambra Creek bridge replacement project (Albay Construction), it was not possible for B111ing's Plumbing to proceed with the driveway work. Consequently, this work was deleted from the contract and a purchase order was issued to Albay Construction for $4,475 to accomplish the work once site conditions permitted. The driveway work was completed the week of January 5, 1987. REVIEWED AND RECOMMENDED FOR BOARD ACTION 1302A.9/85 RSK JSM RAB '~ w ?Jf] INITIATING DEPT.lDIV. SUBJECT ADVISE THE BOARD OF THE CLOSE OUT OF THE ESCOBAR STREET SEWER REPLACEMENT PROJECT (DP 4236) AND RETURN $8,299 TO THE SEWER CONSTRUCTION FUND POSITION PAPER PAGE DATE 2 OF 3 February 23, 1987 The total authorized budget for this project was $71,345. The total completed project cost was $63,046, which is $8,299 less than the budget. Staff is closing out the project which will result in $8,299 being returned to the Sewer Construction Fund. RECOMMENDATION: This item is presented to the Board of Directors for information only. No action is necessary. 13028-9/85 ATTACHMENT-1 ESCDBAR STREET SEWER REPLACEMENT DISTRICT PROJECT 4236 CITY OF MARTINEZ Q RAILROAD SYSTEM-MAf.. N.T.S. LEGEND --- EXISTING SEWER - NEW SEWER -.-.- ABANDONED SEWER o NEW MANHOLE C) EXISTING MANHOLE . Centra =ontra Costa Sanitar~ District BOARD OF DIRECTORS POSITION PAPER PAGE 1 OF 1 ADVISE ll-IE BOARD OF THE U-OSEOUT OF THE SKY-HY CIRClE SEWER DESIGN AND SETTLEMENT AND RELEASE })OREEMENT ACCOUNT NO. V. CONSENT CALENDAR 10 DATE Februa 7 TYPE OF ACTION SUBJECT INFORMATIONAL SUBMITTED BY Robert A. Simmons Associate En ineer ISSUE: Sewer repl acement work ,i n connection with storm damage repai rs at the Sky-Hy subdivision in Lafayette has been completed, and the account can now be closed out. BACKGROUND: In July 1986 a Settlement and Release Agreement was negotiated with the Sky-Hy Homeowners' Association whereby potential claims between the District and the Homeowners' Associ ati on were resol ved, and costs were shared for the repl acement of approximately 600 1 ineal feet of 8- inch sewer pi pe which was damaged as a result of a landsl ide which had occurred in 1982. The agreement provided for Fanfa, Inc., a general contractor who was under contract with the Homeowners' Associ ati on for repai r of the 1 andsl i de, to be responsi bl e for the installation of the sewer line and restoration of the site. The Homeowners' Association was also to contribute $30,000 toward the replacement work and convey new sewer easements to the Di strict for the sewer 1 ine which coul d not be installed along the original alignment because of the landslide repair. The District agreed to design the sewer 1 ine, contribute funds in excess of $30,000 needed to reinstall the sewer line, and reconvey to the Association the existing sanitary sewer easements which would be abandoned by virtue of the relocation. Silva Pipeline Inc. of Hayward, the piping subcontractor to Fanfa Inc., commenced the sewer replacement work on July 31, 1986, and was substantially complete with the work by Sep.tember 17, 1986. The work included the installation of 621 lineal feet of sewer pipe, construction of three manholes and reconnection of three sewer laterals to the relocated pipe. With the approval of the existing easement quit claim deeds which are the subject of a later agenda item (Consent Calendar Item 11>, both the Homeowners' Association and the District will have fulfilled their respective obligations under the terms of the Settlement and Release Agreement. The engineer's estimate for the sewer replacement work was $47,500. Fanfa Inc.'s construction proposal was for $52,747.20. There was one change which resulted in $650 in extra work bei ng performed. The total budget for the sewer desi gn and settl ement and rel ease account was $75,000, i ncl udi ng $30,000 contri buted by the Homeowners' Association. The total cost of the project was $71,000, which is $4,000 less than budgeted. The net cost to the District is $41,000. Staff is closing out the account which will result in $4,000 being returned to the Sewer Construction Fund. RECOMMENDATION: The item is oresented to the Board for information. No action is REVIEWED AND RECOMMENDED FOR BOARD ACTION INITlA TlNG DEPT.lDIV. flv1~ viEt<J 'fM3 GEN. MGR./CHIEF ENG. 130211 .9/85 RAS DRW RAB . Centrt.~ Contra Costa Sanltar) District BOARD OF DIRECTORS PAGE 1 OF 2 POSITION PAPER BOARD MEETING OF March 5 1987 NO. v. CONSENT CALENDAR 11 SUBJECT QUITCLAIM THREE SEWER EASEMENTS, JOB 4250, SUBDIVISION 4452 (SKY-HY SUBDIVISION) LAFAYETTE AREA DATE Februar 24, 1987 TYPE OF ACTION APPROVE QUITCLAIM OF EASEMENTS SUBMITTED BY Dennis Hall, Associate En ineer INITIATING DEPT./DIV. Engineering Department/ Construction Division ISSUE: The property owners have requested the District to quitclaim the subject easements. BACKGROUND: The publ ic sewer which was located in the subject easements was damaged by a landsl ide which occurred in 1982. Slide repair work has been completed and the sewers have been relocated. Replacement easements have been granted to this District for the revised sewer al ignments. The subject easements are no longer required for District use. RECOMMENDATION: Approve Quitclaim Deed to Tor D. Folkedal, et ux, Approve Quitclaim Deed to Sky-Hy Homeowners Association, Inc. and Approve Quitclaim Deed to Richard A. Saso, et ux, Job 4250. Authorize the President of the District Board of Directors and the Secretary of the District to execute said Quitclaim Deeds and authorize the Quitclaim Deeds to be recorded. REVIEWED AND RECOMMENDED FOR BOARD ACTION INITIATING DEPT.lDIV. ~'l 1302A..9/85 DH JSM RAB ~11f Q ~ ~Q !>Ii ~ ;:::. ~ 1\I .J.~ .t~ 1\I o (j1. )> 1;;1 :: QUlrCLA//tIt co ,/ AJ8tJ'4f'4lJ~ E 4/0 QUITCLAIM EASEMENTS JOB 4250 SUB.4452 LA FAY ET TEA REA . Centra" Contra Costa Sanitar) District BOARD OF DIRECTORS POSITION PAPER SUBJECT AUTHORIZE G~CE TO EXECUTE AN PGREEPlfNT WITH THE JOINT VENTURE OF JAMES M. K>NTGOPlfRY ENGINEERS AND CAMP DRESSER AND McKEE AND AUTHORIZE SEWER CONSTRUCTION FUND EXPENDITURES OF $215,000 FOR PHASE I OF THE TREATMENT PlANT MASTER PlAN (DP20045) AND $300,000 TO INITIATE FACILITIES PlANNING FOR HIGH PRIORITY TREATMENT PlANT PROJ ECTS PAGE 1 OF 6 NO. VI. ENGINEERING 1 DATE TYPE OF ACTION AUTHORIZE PGREEMENT AUTHORIZE FUNDS SUBMITTED BY Steve McDonald, Senior Engineer INITIATING DEPT./DIV. Engineering Dept./Planning Division ISSUE: Board of Di rectors' authorizati on is requi red for the General Manager-Chief Engineer to execute a consulting engineering agreement and to expend sewer construction funds. BACKGROUND: On November 6, 1986, the Board initiated the Treatment Plant Master Plan project by authorizing staff to collect and organize plant data and prepare a plan of study to provide the basis for overall project approach and to proceed with a formal consultant selection process. The initial authorization was $50,000. The plan of study has now been prepared and the consultant selection process completed. The overall objective of the Treatment Plant Master Plan is to develop a plan for plant improvements and phased expansions that will meet immediate needs and future capacity and regulatory requirements. The Master Plan will be completed in two phases (see Attachment 1 for a complete project description). Phase I will include the review of treatment plant data as well as past reports and studies; the development of mon itori ng and test i ng programs for the treatment process, collection system, and receiving waters; and an investigation of the regul atory factors impacting the design of modifications to existing processes and construction of future facilities. Phase II will include: a treatment plant capacity assessment; prediction of the base and peak wastewater flows and loadings; and the development of the site development plan, treatment al ternatives, and impl ementati on pl an to handl e the long-term growth of the District. The level of effort for Phase II will be more fully defined following compl eti on of Phase I. Phase I w il 1 be compl eted by 1 ate summer, 1987. The overall Treatment Pl ant Master Pl an is anticipated to take approximately two years to compl ete. Phase I has been determined by staff to be exempt under Section 17.3 Feasibil ity and Planning Studies of the District's guidelines for the implementation of the California Environmental Quality Act (CEQA). An Environmental Impact Report (EIR) and Citizens' Partici pati on Program wil 1 be requi red once future projects have been more fully defined, but the method and approach will be addressed in Phase II. The estimated cost to complete Phase I is $215,000, as presented in Attachment 2. A separate but parallel effort which wil 1 interface closely with Phase I of the Treatment Plant Master Plan is facilities planning for high priority treatment pl ant proj acts. Improvements needed now to meet capacity or rel i abl1 ity criteri a REVIEWED AND RECOMMENDED FOR BoARD ACt/ON IbI1 :r,1l\~ GEN. MGR./CHIEF ENG. INITIATING DEPT./DIV. 130:!A..9/85 HSM JMK RAB SUBJECT AUTHORIZE GM-CE 10 EXEQJTE AN PGREE~NT WITH THE JOINT VENTURE OF JAMES M. ~NTGOMERY ENGINEERS AND CAMP DRESSER AND McKEE AND AUTHORIZE SEWER CONSTRUCTION FUND EXPENDITURES OF $21S,000 FOR PHASE I OF THE TREATMENT PLANT MASTER PLAN (DP2004S) AND $300,000 TO INITIATE FACILITIES PLANNING FOR HIGH PRIORITY TREATMENT PLANT PROJ ECTS POSITION PAPER PAGE DATE 2 OF 6 March 2. 1987 will be identified. These projects will be evaluated and screened to advance only the most critically needed. Following the sel ection of up to seven of the highest-priority projects for implementation, background information and conceptual designs will be developed in a facilities planning format. Design criteria, layouts, and general equipment descriptions will be developed to enable these projects to move quickly into design and construction. The projects already identified as potential "immediate" category projects include the following: odor control for the wet weather holding ponds, odor control for the grit removal tanks and primary sedimentation basins, screenings handling improvements, and an industrial waste and septage handling facility. Smaller projects (e.g., influent sampl er improvements) w ill be more full y developed, whereas faciliti es pl ans for larger projects (e.g., new headworks) which require more effort will only be initiated, and will be the subject of future authorization requests. The key to this evaluation will be to ensure that the early implementation of these projects will not be adversely impacted by subsequent decisions developed during the Master Plan process and to assess the immediate need to proceed. The facilities planning effort to initiate up to seven high priority treatment plant projects will be completed in the fall of 1987. The estimated cost to perform the work, including all District force account costs and testing, is $300,000, as presented in Attachment 3. District staff conducted a formal selection process for the best qualified engi neeri ng consul tant for the Treatment Pl ant Master Pl an. A request for proposals was sent to seven consulting firms on October 30, 1986. A selection panel, consi sting of representatives from the Engi neeri ng and Pl ant Operati ons Departments as well as an outsi de panel member, screened the proposal sand sel ected John Carol 1 0 Engi neers, Camp Dresser & McKee, and James M. Montgomery Engineers to make final presentations. Acting on an opportunity to compose a team of complementary strengths, the District suggested, and the consultants subsequently agreed to, a joint venture of James M. Montgomery Engineers and Camp Dresser & McKee (JMM/CDM), both of Wal nut Creek. A cost reimbursement contract has been negotiated with JMM/CDM with a combined cost ceiling of $336,000. Of the $336,000, $lSS ,000 is for Phase I of the Treatment Pl ant Master Pl an and $181,000 is for initiation of facilities planning. District staff will perform the project management role, participate in portions of the monitoring and testing programs, provide data, and print the final reports. The Treatment Plant Master Plan is a Priority A project in the Capital Improvement Program. RECOMMENDATION: Authorize the General Manager-Chief Engineer to execute an agreement for engineering services with the joint venture of James M. Montgomery Consul ting Engi neers and Camp Dresser & McKee (JMM/CDM) and authorize Sewer Construction Fund expenditures of $215,000 for Phase I of the Treatment Pl ant Master Plan COP 2004S) and $300,000 to initiate facilities planning for high pri ori ty treatment pl ant proj ects. 13028-9/85 Page of 6 ATT ACH tie NT 1 CENlRAL CONlRA OOSTA SANITARY DISTRICT TREATtlENT PlANT MASTER PlAN PRO) ECT DESCRIPTION FE8RUARY 24, 1987 BACKGROUND: Since the original Central Contra Costa Sanitary District pl ant construction in 1948, the District has been involved in the continuous process of enl arging and upgrading the treatment facilities in response to growth and more stri ngent di scharge requi rements. There have been five maj or pl ant expansi ons since the original construction. The latest expansion was the Stage 58 Project, which when compl eted in November, 1986, brought the current treatment pl ant capacity up to 45 million gall ons of wastewater per day (mgd) of average dry weather flow (A[)tIF). Planning for the Stage 58 Project was completed in February 1982 with the Stage 58 "Facilities Pl an Amendment" by Metcal f and Eddy. Short-Term Treatment Plant Caoacitv Issues The current plant influent flow is approximately 35 mgd (AOWf). peak wet weather flow capacity is approximately 150 mgd. However, 1985 caused a flow of 180 mgd and in February 1986 caused a approximately 220 mgd, exceedi ng the fl ow the pl ant can process. Current pl ant the storms of peak flow of In addition to peak wet weather flow constraints, the multiple hearth furnaces are reaching capacity. One of two existing multiple hearth furnaces has been in conti nuous operati on si nce November 1984 and currentl y inci nerates an average of approximately 44 dry tons of solids per day. The seasonal solids loading is predicted to exceed the capacity of one-furnace operation for part of the year beginning in 1987; during those periods, two furnaces will have to be operated, allowing for no backup in the case of mechanical failure. Lona-Term Treatment Plant Caoacitv Issues The future baseline plant influent flows and associated level of treatment will be affected by the current and proj ected rapi d growth rate of Central Contra Costa County, as well as the pending regulatory actions affecting discharge requi rements. Requi red improvements woul d incl ude expansi on of the primary, secondary, and discharge facilities, such as a new influent pump station, new primary clarifiers, new aeration basins, and secondary clarifiers. In addition, the tradeoffs between expanded hydraul ic capacity and use of hol di ng basi ns will be evaluated. This evaluation will impact the potential need and size of a new outfall and will establish the District's ultimate wet weather flow handling methods and capability. Finally, the long-term solids handling method and residuals disposal plan will be developed. MASTER PI.. AN Phase 1 During Phase 1, all relevant plant information will be reviewed, including past reports and studies, plans and specifications of past projects, as well as an investigation of the regulatory factors impacting the Master Plan including interviews with the appropriate regulatory agencies to define and describe the Page Jf 6 existing treatment plant process efficiency and current as well as pending regulatory limitations. In Phase I, it w111 also be necessary to develop the scope of the testing and monitoring programs required in the collection ~stem and treatment plant for design of future facilities, as well as any receiving water and ambient air testing which may be required by the regulatory agencies. A limited collection ~stem monitoring program will be defined to establish wastewater characteri stics in sel ected upstream service areas and to vali date plant influent characteristics. The results from this test program will be used to establish existing wastewater characteristics and to project future wastewater loadings in Phase II of the Master Plan. Receiving water and plant effluent monitoring programs w111 be developed to establish existing conditions and to provide background information for use during Phase II. A wet weather stream monitori ng program to determi ne water quality in Grayson Creek and Wa1 nut Creek will also be defined, including stream gauging to assess creek flows. Furnace air emissions testing, protocols, and furnace operation monitoring programs will also be developed. Phase 2 Phase 2 of the Treatment Pl ant Master Pl an w 111 address the hydrau1 ic, sol ids handling, and process capacity of the treatment facilities for a 20-year horizon, with the production of a five-year plan of action for the construction of critical improvements needed in the nea r term. Improvements in wet weather f1 ow processi ng and solids handling capacity will be addressed early in the master planning effort and w ill be spun off before comp1 eti on of the Master P1 an to expedite desi gn and constructi on. Current and predicted wastewater f1 ows as well as pendi ng federal, state, and regional regulatory actions establishing discharge requirements to the air, land, and water, as well as the potential for water recl amation will all be assessed. Potenti a1 treatment strategies w 111 be screened for the best apparent alternatives. The Treatment Plant Master Plan will develop detailed project cost scenarios which will be used for District rate setting determinations. The Master Plan w111 also provide the framework to evaluate and set priorities for near-term projects and to check for overall compatibility with the anticipated future facil iti es. -----'-------_._.,~_._.---_.~~-_.__."..,.~.....,'-~.-~_._._----,._---_._~.......-._.,--_._-,-- paJJe 5 of 6 ATT ACH~NT 2 TREATMENT PLANT MASTER PLAN PHASE I COST B REAI<DOW N FEB FUMY 'D, 1987 Consul tant JMM/CDM $155,000 District Planning Division Construction Division (Survey) Plant Operations Department Printing 30,000 4,000 3,000 3.000 40~000 Subtotal $195,000 *Contingency (10%) 19.509 $214,500 Say, Total Authorization Requested $i}519~ *If necessary, staff will use this contingency for additional force account effort or to issue contract change orders to consultants to expand their scope of work. Page 6 of 6 ATT ACH~NT 3 FACIL ITIES PL ANNING OF IMM:DIATE PROJ ECTS FEBRUARY 'Z1, 1987 Consul t9n~ JMM/CDM $181,000 Di stri ct Labor Planning Division Construction Division (Survey) Plant Operations Department Pri nti ng 35,000 5,000 2,500 2.500 Subtotal, Labor Testing and Outside Laboratory 45,000 45.000 Subtotal $271,000 *Contingency (10%) 27.100 $298,100 Say, Total Authorization Requested for Facilities Planning $i0019~0 *If necessary, staff will use this contingency for additional force account effort or to issue contract change orders to consultants to expand their scope of work. . Centra. ':ontra Costa Sanitar~ ..listrict BOARD OF DIRECTORS PAGE 1 OF 58 POSITION PAPER BOARD MEETING OF March 5, 1987 NO. VI I. TREATMENT PLANT 1 SUBJECT DATE BOARD ACCEPTANCE OF 1986 ANNUAL SELF-KlNITORING PROORAM REPORT ACCEPTANCE OF REPORT SUBMITTED BY Charles W. Batts Plant 0 erations De artment Mana er INITIATING DEPT./DIV. Plant Operations Department ISSUE: The Central Contra Costa Sanitary District's Self-Monitoring Program annual report for 1986 has been prepared for submi ssi on to the Cal iforni a Regi onal Water Qual ity Control Board, San Francisco Bay Section. This report is presented to the Board at this time for its information and acceptance. !3ACKGROUND: All effl uent req ui rements were met throughout the year with the exception of point-of-discharge violations and 40 non-zero chlorine residual violations. The point-of-discharge violations were caused by an overflow of excess wastewater from rainstorms in February and March. This discharge was within secondary standards except for the total col iform sample. The chlorine residual violations were caused by process control problems. The total duration of chlorine violations for 1986 was.less than eight hours. The District performed quarterly monitoring on selected organic and'metallic pollutants as requested by the Regional Water Quality Control Board. The results of these tests show that these pollutants were not detected in the Treatment Plant effluent in any significant concentrati ons. There was a total of 16,096 mill ion gallons of wastewater treated for an average daily flow of 44.1 million gallons. This flow is about a 15 percent increase over 1985 and a 12 percent increase over 1984. The Treatment Plant operated throughout the year and produced an effluent with an average BOD and total suspended sol ids concentration of 6 mg/l, and 10 mg/l, respectively. The BOD and total suspended solids removal efficiency for the plant averaged 96 and 95 percent, respectively. Solid disposal during this year involved the incineration of dewatered sludge in the District's multiple hearth furnaces, and 5,636 tons of furnace ash was disposed of by 1 andfill i ng. There was only a total of 146 tons wet wei ght of dewatered sludge hauled to Acme Fill. This material met the regulatory criteria for off-site di sposa 1. Upon acceptance of this report by the Central Contra Costa Sanitary District Board of Directors, the Annual Report will be submitted to the California Regional Water Quality Control Board. RECOMMENDATION: Acceptance of the 1986 Annual Self-Monitoring Program Report. REVIEWED AND RECOMMENDED FOR BOARD ACTION Page No. __ of __ CENTRJlL CONTRA OOSTA SANITJlRY DISTRICT DISOHJlRGERS MONITORING PROGRAM REPORT REPORTING DISa-tMGER Central Contra Costa Sanitary District DATE OF REPORT February 15, 1987 REPORTING PERIOD Jan. - Dec. 1986 SUBJECT: ANNUAL REPORT COMMENTS: Enclosed is the 1986 annual report. The report presents yearly totals, averages, maximum and minimum values of the District's influent, final effluent, and receiving water quality parameters. Important data are also presented graphically. All sampling analyses were performed in accordance with the Water Quality Control Board's Resolution No. 84-77. The final effluent qual ity ranained in campl iance with app1 icable NPDES standards except for 40 non-zero chlorine residual violations. The maximum and minimum chlorine residual readings recorded were 9.9 and 0.3 mg/1 respectively. The total duration of violations was 8.1 hours out of 24 hours per day continuous monitoring by on-line chlorine residual analyzers. One of the most significant causes of the violations was the occurrence of an intermittent electrical malfunction in the SO? evaporator. Thi s was di agnosed and corrected. Other viol ati ons occurred due to dechlorination process control prob1ans caused by sudden flow fluctuations and MJX prob1ans. Sudden flow fluctuations were associated with process changes necessary to accommodate the Treatment Plant expansion construction activities. To eliminate future chlorine residual violations caused by the evaporator, the District has initiated installation of two new evaporators as backups for the existing ones. sul fur su1 fur di oxi de dioxide Fran February 19 through 24 and March 13 through 19, the District service area received heavy rains. The inflows exceeded the secondary treatment capacity during these epi sodes. Conseq uent1y, after primary treatment the excess wastewater had to be diverted to the holding basins. After exceeding the holding basin capacity, the parti ally treated wastewater overflowed into Wa1 nut Creek v ia Pacheco Slough. The quantity of water which overflowed into Pacheco Slough was estimated at 406 mill ion gallons. During these episodes of overflow, the District initiated a special monitoring program. Grab samp1 es of the overfl ow were taken every four hours and analyzed for BOD, TSS, and pH. The di scharge into the ho1 di n9 basi ns was al so samp1 ed for total coliform. In addition to monitoring the overflow, the District also monitored Walnut Creek water quality at a station upstream and a station downstream of the discharge. The results of these special analyses are presented in Tables Nos. 26, 27, 28, and 29. The results show that the overflow water quality was consistently within secondary standards, except for total col iform for the same sampl e. However, Wal nut Creek water quality, upstream of the District overflow, was worse in terms of TSS and total col iform. Evidently, the overflow did not deteriorate the receiving water quality beyond its natural backgrounds. Page 2 The District has successfully carried out the Regional Water Quality Control Board's special quarterly exploratory monitoring program on selected organic and metallic pollutants. The results of the last four quarterly samples are presented in Tables Nos. 30, 31, 32, 33, and 34. The results show that no known dangerous organic pollutants were detected in effluent in any significant concentrations. To the best of ~ knowledge, the information contained herein is true and correct. I? j) JL~'L~V#~ Signature, Director of Laboratory ) .--.{-'. :~~.,..~;~~'...~(;~~~.:~~.- "l'ABLE 1 CENTRl\L CONTRi"'\ COSTA SANITARY DISTRICT WATER POLLUTION CONTROL DIVISION REQUIREMENT COMPLIANCE SU~~ARY Final Effluent (E-001-O) -----.:......-.--.....;;...- :..:' -':.~~--,...- YEAR 1986 r ! I ! l-l o .;J C) Eo: d $-I rJ p.. .p ..-1 <== .;:i ....1 ;Jan. iFeb. ~rlar _ ~p.pr _ lHay jJun_ pul_ jAug. ;Sep_ 10cL tr~av - !D~C_ i l (La t _ . $-I ~ ""- .-t ""- .-t ~ O. C'l .-t o t ~ ~ 0'"0 ::E: o o :> ..-1 ..-1 +J+J o ~ E u ~ " .p t,1 -,-f ~ ~ 8. I I 1 o .-t .0 I'd o ~ .-t 0 +J+J .p.p o I'd oo;:E; .~ ""- .-t ""- .-f E: C'l o o . . ~"~X_ IJ · l~.ll.n_ I ~ o C'l 0 M x c:j ;:E; (J) ~ >. I'd I'd o'U :4. 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CENTRAL CONTRA COST A SANITARY DISTRICT TABLE- 5 SELF-MONITORING REPORT EFFLUENT CHARACTERISTICS 96-HOUR BIOASSAY RESULTS SUMMARY (UNDILUTED SAMPLE) Final Effluent (E-OOI-S) Average MONTH DATE Percent Survival PERCENT SURVIVAL - JANUARY { 9 85 30 100 92 FEBRU ARY { 6 100 100 27 100 { 13 90 92 MARCH 27 95 APRIL { 10 95 28 180 98 MAY { 8 100 22 100 100 JUNE { 5 90 18 100 95 JULY { 10 100 98 24 95 AUGUST { 7 90 21 75 82 SEPTEMBER { 4 100 100 25 100 { 9 95 OCTOBER 23 100 98 I 13 95 98 ....- NOVEMBER 20 100 ~ DECEMBER { 4 95 18 100 98 6117-2-80 >- 0: <X: -... ~ ", ~ <1.l ::::> .2 V) <1l ~ Cl <1.l ..... Z O:l - <1l U 0 .... <X: <1.l 0: ~ ..... 0 <1l V) -J 0 <1.l 0 .... <1l >- Z 0: <X: ~ <l: .Q ..... V) <1l (/) U .... Z I <X: ..... <1.l .- V) V) -.. 0 1.0 0: 0 I <l: UJ UJ - W ..... -J ..... .- V) a:l U ", 0 <l: <X: <1.l +-> U ..... 0: .... c <X: :::J OJ O:l <X: :r: '- :::l 0: U .... .- ..... 4- Z UJ ~- 4- 0 ..... <1.l W U V) 0 <X: :::: .- -J ~ CO <l: <1.l C 0: UJ .~ l.J.. ..... 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U a:: a:l <X: 0: <l: ::::> 0... u 0 W z> <l: ~ <l: W 0... ::::> ::::> <l: UJ 0 Z 0 <l:<l: ., U- ~ <l: ~ ., ., V) c.. ... I o (J) o CD CD ,... 0: <( W >- >- 0:: <t: ....... ~ CI) ~ ::) ::> -- (I) l13 :::. C) I- Z O:l U 0 l13 .... 0:: <t: :::. I- 0 l13 (I) ...J 0 0 .... l13 >- Z 0:: <t: <t: -- I- (I) -Q l13 Z U .... <t: I- (I) (I) ~ (/) ~ 0:: I <t: w ::: r- l- I- C) (I) w U C) 0 ...J <t: CI) I aJ U <t: 0:: .... l.1.J <t: ::) I- O:l <t: I "- .j..J 0:: U ..... l- e: Z "1;)' Q) W :::l 0 I- U (I) .... r- <::> 4- <t: c::: 4- ...J := l.1.J <t: 0:: W "~ r- I- C) :;: ro Z <t: .... e: w 0:: .~ U w ~ LL > <::> <t: CI) ...J CI) <t: ~ ::> c::: z ~ z --- <t: 0:: <t: - w >- ,~,~, ~,<:-;~,'~~;,:'~,'~,~< . > CO r- <l: CO r- 1.0 N <:;t 0 N ,...... r- N CO U ..... . . ,...... 1.0 L.O (:l C) V . . Z >0:: \j C) C) C) w V V V (I) 0:: r- L.O <t: ...J C) C) L.O L.O <:;t ..... C) C) C) C) C) (:l . 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J: 0:: 0:: W 0:: W W W UJ .... e:{ e:{ ..... a::l W CD CD ...JCI :!; z :I: (I) ::2; a::l :E ::2; e:{e:{ q: 0 ::> ::> u ...J w ::> w 0 w w ::>0:: cr: 2 0:: 0:: >- C) ..... > q: :!; CD 0:: >- 2 ...J ..... 0 Zw CL e:{ uJ e:{ Q. e:{ ::> ::> ::> Q. U 0 Z> w w -, u.. :E e:{ ::!: -, -, e:{ (I) 0 2 0 e:{e:{ ~ ~ I en ,... o <D <D ,... .~-~==~=~~::'... :':~~~~~::.~:~::~-~:~--.~"_...". '_~_\''''''-'- -~. .~~. .:-:..~ :.-"'-":.=..-:~~~.:...' .;j..:':_~-...."':'~:=-.~:='~ '.-.:.-.._-::.....-:~.:~..~~--...~ CENTRAL CONTRA COSTA SANITARY DISTRICT TABU 8 ANNUAL WASTE CHARACTERISTIC AND lOADING SUMMARY Final Effl uent (E-001-$') YEAR 1986 24-Hour Composite PARAMETER TOTAL SUSPENDED SOLIDS CIl CONCENTRATION LOADING 0 ...... If- If- .jJ 0 Oeo mg/l kg/day ..- . '0 MAXIMUM MINIMUM AVERAGE 0 0..... MONTH MAXIMUM MINIMUM AVERAGE :z: :z: >- JANUARY 22 2 9 3622 414 1514 31 :0 FEBRUARY 29 3 9 4511 748 1881 28 0 MARCH 19 1 10 4849 201 2448 31 0 APRil 19 1 8 ,~ 2922 160 1361 30 0 MAY 18 4 9 2762 586 1390 31 0 .JUNE 15 1 6 2177 145 912 30 0 JULY 31 4 7 4200 508 1016 31 0 AUGUST 14 3 8 1839 409 1088 31 0 SEPTEMBER 18 1 8 2577 133 1023 30 0 OCTOBER 31 3 11 4130 392 1445 31 0 NOVEMBER 46 2 12 5982 261 1567 30 0 DECEMBER 20 5 10 2931 713 on 31 0 ANNUAL ~.- MAXIMUM 31 0 ~ ANNUAL MINIMUM 28 0 ANNUAL AVERAGE 6034-1.711 _____._......'_.._m___.___....__...._..~,..._ ---... - .-..-------,-...- ..~.--_.~_._---_._--".~-_..._------"-'" .. ,._.---~.._..",--_._-_..__..--,,~. ... " "_._"'-_.-,,~--_.~ -~~.'."z ~..'.' :.~_~...> -....... "~.' ~_""_"'~_' "!~._.~.~_.-.'.' ~~.....~_:...__.'~_---..-_-.' _-,-. -._.....,",",_:_-~...,..~--.:'.-.-.__~. '___._ L"~_~'"',, _;..~...::'?':.~..'_--."':; :.~. -.. - .~.. ~ _ _ ........ _ '.~ .- ~~.'. .......:~~.:.:.::....:.:::-=::.:~:.:.;.;..::..::::.:.;.:.;;..;a~.~.~...;n.~~::.::.;;:....:=...:.::=__h. CENTRAL CONTRA COSTA SANITARY DISTRICT PARAMETER TABLE 9 ANNUAL WASTE CHARACTERISTIC AND lOADIN~ SUMMARY final Effluent ([-OOl-.S) YEAR lqRfi 24-Hour Composite BIOCHEMICAL OXYGEN DEMAND Ul CONCENTRATION lOADING mg/l kg/day MONTH MAXIMUM MINIMUM AVERAGE MAXIMUM MINIMUM AVERAGE JANUARY 23 2 7 3292 330 1092 31 0 FEBRUARY 31 1 6 6639 252 1206 28 0 MARCH 2~ 2 5 4807 456 1165 31 0 APRil 9 1 4 1724 160 629 30 0 MAY 9 1 5 1379 144 723 31 0 .JUNE 8 1 4 1129 142 583 30 0 .IULY 9 2 4 1328 254 531 31 0 AUGUST 24 2 6 3248 274 827 31 0 SEPTEMBER 8 1 4 1145 133 490 30 0 OCTOBER 13 2 5 1700 267 608 31 0 NOVEMBER 44 2 7 5831 261 915 30 0 DECEMBER 13 2 6 1912 267 864 31 0 ANNUAL " - MAXIMUM 31 0 . , ANNUAL 1 ':lr~ill!l~ilitl 28 0 MINIMUM J~~~m~~if~~~~ti~;~ili~fi~~~ ...................... ANNUAL AVERAGE 5 803 6034 1-76 ~_.___.....-______~".___.__________."~~.~_,.~__"'._~"__~_._.,._._.._~__.._~__.......,.~.__.__..~__~_______....~_."__'___','_"_",_,,_."_,,_,,,_'__'_'_._,.e.."'._____ ...-_.. -_.'-'-'--'--'-~-""-~ .... .---..-.-.--- ';'" . ":".,.---.T .....:.:~--~~~~~~.. ;.l'~.~ 41:i:~ ......-...-....- , - .- ......- CENTRAL CONTRA COSTA SANITARY DISTRICT TABLE 10 ANNUAL WASTE CHARACTERISTIC AND lOADING. SUMMARY Fi na 1 Effl uent (E-001-'S) YEAR 19R6 GRAB PARAMETER MONTH JANUARY FEBRUARY MARCH APRIL MAY .IUNE .IIJlY AUGUST SEPTEMBER OCTOBER NOVEMBER DECEMBER ANNUAL .....~ - MAXIMUM ". ANNUAL MINIMUM ANNUAL AVERAGE -----.-.- MAXIMUM MINIMUM AVERAGE MAXIMUM MINIMUM AVERAGE en c OIL AND GREASE CONCENTRATION lOADING mg/l kg/day 2.2 0.3 0.8 0.3 1.8 0.1 2.0 0.2 2.3 0.2 1.5 0.5 1.4 0.2 0.6 0.3 5.7 0.1 1.3 0.2 4.5 0.3 7.5 0.5 7.5 0.1 1.2 0.6 0.9 1.1> 0.9 0.9 0.7 0.5 1.9 0.8 2.1 2. 1 393.4 172.8 393.3 392.6 345.5 213.3 186.8 80.7 753.3 168.9 591. 6 1079.8 '+- o - '+- +' oeo ..- . 0 0- :z: > 44. 1 204 . 9 5 0 74.2 118.5 4 0 22.3 217.1 4 0 32.0 189.1 5 0 29.6 130.9 4 0 70.2 130.9 4 0 27.2 87.5 5 0 38.6 62.6 4 0 13.7 255.8 4 0 25.7 98.7 4 0 38.0 274.2 4 0 62.2 301.4 5 0 11.5 :~~~~~~l~~t~~f~rif:~~~~~~~f~~~~ 13 . 7 rilij~~:i~:~~j~~~~j~Ilil11jjjljj~:~f~ 4 172.6 o o 6034 1-76 ~4:~:_.._=~_~_~:-::~':':=::Y=-:~ ~.-:~~'~ ~:: ~~~..-~_~'~;""'.:'.~~~1 ===.~:.-":--':~=:.::~.:.::'~\:..:"':_~':-.~.~~~ -:.:':::'~~~.~~~..~:"==:.~ '::~':' -::;":;'::;:':.: -.:.~-.~-::::::..:~ .:::: ~-:.::::.:.: '::;"": ,...- PARAMETER MONTH JANUARY FEBRUARY MARCH .4.PRIL MAY .JlINE .JlJlY AUGlIST SEPTEMBER OCTOBER NOVEMBER DECEMBER ANNUAL &. . MAXIMUM J ANNUAL MINIMUM ANNUAL AVERAGE CENTRAL CONTRA COSTA SANITARY DISTRICT TABLE 11 ANNUAL WASTE CHARACTERISTIC AND lOADING SUMMARY Final effluent (E-001-S) YEAR" 1 986 Grab pH CONCENTRATION UNITS . o AVERAGE z: MAXIMUM MINIMUM AVERAGE MAXIMUM MINIMUM 6.9 6.6 6.8 7.2 6.7 6.9 7.3 6.7 6.9 7.2 6.7 7.0 . ~. 7.0 6.6 6.9 7.0 6.4 6.8 7.0 6.7 6.8 7.0 6.6 6.8 6.9 6.5 6.7 6.8 6.5 6.7 6.8 6.5 6.7 6.8 6.6 6.7 7.3 . 6.4 n_ 6.8 tj- o 31 0 27 0 30 0 30 0 31 '0 30 0 31 0 31 0 30 0 30 0 30 0 30 0 31 o 27 0 6034 1-76 . _:.~.~~>-'.~<c'~~'." -- .~~~:::==:.~=~=--=-:=-.~~=~.. :2..':-=-..:~;:" :.__-=,:-:~~------------=:=-===:::::.==._----_. -- - . CENTRAL CONTRA COSTA SANITARY DISTRICT TABLE 12 PARAMETER SETTLEABLE MATTER VI c <<+-~ ~ CONCENTRA TION lOADING Or- <<+- +' 0'0 0 ~ ml / I thou r r- . E . 0 ~bi 0 or- MONTH MAXIMUM MINIMUM AVERAGE MAXIMUM MINIMUM AVERAGE z: > JANUARY <: 0 . 1 < 0 . 1 < 0 . 1 31 0 ~ FEBRUARY L:.O . 1 ~O . 1 . .:::::0 . 1 27 0 MARCH <. 0 . 1 <(0 . 1 4.0 . 1 30 0 APRIL < 0 1 <::0 1 L 0 1 " 30 0 . . . '. MAY 4( 0 . 1 <0 . 1 <0 1 31 0 . .IUNE < 0 . 1 <0 . 1 < 0 . 1 30 0 . f : I .Ill L Y <. 0 . 1 <0 . 1 <0 . 1 31 0 AUGUST <0 . 1 <0 0 1 4) . 1 31 0 SEPTEMBER <.0 . 1 ~O . 1 ..(0 . 1 30 0 OCTOBER L. 0 . 1 ~O 0 1 .L.. 0 0 1 30 0 NOVEMBER < 0 . 1 <0 . 1 < 0 . 1 30 0 DECEMBER <. 0 . 1 <0 . 1 < 0 1 30 0 0 . 1.1 . ~1t(II' ....... ANNUAL < 0 1 ;~.. ';il~11' MAlCIMUM . :I:':::~~:::~:::::~~ u.:i~~~~ 3 1 0 .~~.....,., <....... ~::~:~:~;::~~~~:~~~~:~~~~~~:~:~:~ ~::;: -<<~:~:~:~.... :.. .*~::: ANNUAL . <0 1 U . . MINIMUM 0 27 0 . . . ~~>l ........................ ANNUAL <0 1 Ifltlilllll~ AVERAGE 1;034 1 .71; ANNUAL WASTE CHARACTERISTIC AND LOADING SUMMARY Final Effluent (E-001-$) YEAR lqAfi Grab ;. . .~~'~r~:~-~~=:-,:,::,=~~:~~~-:,~=~_"~'~-.":,:-~'::"'~~~ .,~~ __..:~'- _44__:':'__~-_ ~_____ CENTRAL CONTRA COSTA SANITARY DISTRICT TABLE t3 ANNUAL WASTE CHARACTERISTIC AND lOADING SUMMARY Final Effluent (E-OOI-D) YEAR" 1qR6 Grab PARAMETER TOTAL COL I FORM Ul c '+-~ u F I VE-OAY MED I AN S I NGLE SAMPLE 'r- '+- +> of 0 n::l MPN/ 1 00 ml MPN/l 00 ml r- o ~ . 0 0 'r- MONTH MAXIMUM MINIMUM AVERAGE MAXIMUM MINIMUM AVERAGE zv z >- JANUARY 70 < 20 < 35 330 < 20 <59 23 0 - FEBRUARY 20 <::20 <: 20 1 30 <: 20 < 36 1 8 0 MARCH <: 20 <.20 <20 20 < 20 < 20 22 0 APRIL 20 < 20 < 20 ~ 50 < 20 <::21 22 0 MAV 1 30 <20 <39 1 400 <20 <1 04 22 0 . .llINE 1 70 <( 20 .:::: 64 5400 < 20 .::::.31 6 22 0 - . I . . .ltJL Y 20 L:.20 .::::.20 5400 .:::: 20 .:( 266 22 0 AUGUST < 20 ~ 20 < 20 70 <: 20 <:: 22 22 0 SEPTEMBER 1 1 0 < 20 < 42 330 < 20 <66 22 0 OCTOBER 1 10 I 20 26 3500 20 362 25 0 NOVEMBER 20 -'20 <20 1300 <20 < 1 1 7 21 0 DECEMBER 40 < 20 c::: 2 1 790 < 20 < 60 24 0 . .:.:.:.:-:.:,.:.:.:.' :~:~~:~*i~: r :i~IIII~lr"11111 ANNUAL 1 70 :jC~~~:~:~~::: .:.:...:~:w.::: ~~: ~f:~~;~f~~~~~@~;~~~~: MAXIMUM J~~~r~~~~ ~~::*~: 5400 .................v............ 25 0 :~~m~~ ..... ...:.::~:::;::::::~:::::~~:::*=: ::::::::::::::::~:"-::::*:::::::::::::::::: ........,..........""....v. :::::::::::~~:::::::~~:::::~::::~:::~: ........,/".......... :::::::':::::::.':::j.:::::::~-:::::.::::-::::. ................. .. . ~~~~~:~:~~:~:: ;.-;::.' .. .... :~III\'tljl~I~~l~t~ ANNUAL :r..:: <: 20 ~;rt~~t~~;~~:;;.^. L !llr~~~~lf r~j~lj*jt <'20 18 0 MINIMUM j~~~t~~~~~I~~~~~~~~~r~~~f~~~: ..:-:.:':':':.:':':.:':':':':':':-:':-:':-:': '::::::::::::::::::;:::::::~~~:::;::::::::: ...................... .......... ........... ..... ..... ............ ANNUAL . . . . AVERAGE <29 <.12 1 6034 1 -76 . "'-''''''' '.. . ~.. .' ~".-. -;. ... .- ....'--...._~.._...-._.....- ----~.....:_. ~~..- _. CENTRAL CONTRA COSTA SANITARY DISTRICT PARAMETER ORGAN , C N ~ CONCENTRATION lOADING ( 0 or- ......c ...... ....... ~1 0 n::l mg/ 1 kg/day r- . 0 ~cj 0 'r- MONTH MAXIMUM MINIMUM AVERAGE MAXIMUM MINIMUM AVERAGE z: ::> JANUARY 4 . 0 2 . 1 3 . 0 600 . 2 31 0 . 5 482 . 2 9 0 ~ FEBRUARY 4 . 4 1 . 7 2 . 4 684 . 4 428 . 3 504 . 4 8 0 MARCH 3 . 3 1 . 8 2 . 3 61 9 . 7 455 . 7 540 . 2 8 0 APRil 3 6 2 2 2 7 J. 632 2 373 1 457 5 9 0 . . . . . . MAY 3 . 7 2 . 1 2 . 9 550 . 2 307 . 8 443 . 5 9 0 .!lINE 2 . 9 1 . 9 2 . 5 41 2 . 0 274 . 7 358 . 1 8 0 ! I .It Il Y 3 . 5 2 . 3 2 . 8 474 . 2 21 0 . 5 378 . 2 9 0 AUGUST 3 . 3 2 . 5 2 . 8 439 . 3 333 . 4 374 . 5 8 0 SEPTEMBER 3 . 1 2 . 2 2 . 5 443 . 8 291 . 0 341 . 8 9 0 OCTOBER 3 . 7 2 . 4 2 . 9 483 . 8 31 3 . 5 373 . 3 9 0 NOVEMBER 7 . 8 2 . 5 4 . 0 1014 . 3 308 . 9 51 1 . 0 8 0 , DECEMBER 3 . 5 2 . 4 3 . 1 508 . 9 29 1 . 1 402 6 8 0 . LJ . :::;,:~:;:;:;;::;~::::::::>>::::::::::::::: ..... .............. :;::::;:::;~<'-;:::;::::::~::::::::;:::;::=i- ANNUAL 7 8 1 014 ~~~t~~t1~~~~~~~~~I~~~~~~~~~~~~ ~~f~i~~it~i~~~~~~1~!~~~1 "1AXIMUM . . 3 '1~~~~~~~~~~~~~~I~~~~~~~~~~~~~~~~~t ;.:.:.:.:.:.:.;.;.:.;.;.:.:.:;;.:.:.:-:.;.;.:. 9 0 ........................ .........................^......~........... ......................... :::::~:::::::;::::::::::~::::~::::::::::::: . llljll~111Ii~111. . . ..................... ANNUAL .~~~~~~~~r~~~~~~~~~~~~~f:~i~i~~~~;~~~~ MINIMUM 1 . 7 210 5 1ft~flIt~~~~~~~~~~tJ~~~ 8 0 ~II~fI~~~f~~~~~~i~~~~~~f:~~~ . .............................................. ....................... ............................................... .............................................. ...................... ....................... ...................... ...................... ANNUAL . . . iiitttMWWfil .......,.-........ ......' AVERAGE 2 . 8 !~Jl~~~I]t1r~j~il.!f\~~j 430 6 6034 1-7fi TABLE 14 ANNUAL WASTE CHARACTERISTIC AND lOADING SUMMARY F i na 1 E ff 1 uen t (E -001 - S) YEAR 1986 24-Hour Composite . . ," '.-=-::~':=~~~'~~~~:::'~::-~::::=~=~~'.'=';'::~"::"::"~:~1~:: -::~:'-:"..~'~;.:::~.-::~~"'..:'...~~' .-,~.:::. :.:: --:...:. ~_ _~ - ~.::..:;-==~~. _.__.:...~... ~ _...- CENTRAL CONTRA COSTA SANITARY DISTRICT PARAMETER AMMON I A-N ~ ~~ 0 CONCENTRA TION lOADING ..... ~ .... ~~ 0 ~ mg/ I kg/day r- . 0 ~~ 0 ..... MONTH MAXIMUM MINIMUM AVERAGE MAXIMUM MINIMUM AVERAGE z: ::> JANUARY 1 5 . 5 9 . 2 1 2 . 7 281 1 . 7 1 649 . 8 2065 . 1 31 0 - FEBRU ARY 1 3 . 5 0 . 1 6 . 8 291 6 . 3 26 . 3 1 373 . 9 28 0 - MARCH 1 3" . 0 3 . 2 8. 1 261 5 . 5 81 6 . 7 1 867 . 9 30 0 APRIL 13 8 10 7 12 2 . 2570 9 1796 4 2050 2 30 0 . . . . . . MAY 1 6 . 0 6 . 8 1 2 . 5 2395 . 7 1 009 . 1 1 902 . 1 31 0 .IUNE 1 6 . 1 5 . 1 9 . 5 21 84 . 5 738 . 5 1 361 . 5 30 0 . I ; I .It Jl Y 1 6 . 4 1 0 . 8 1 3 . 5 2467 . 3 1 472 . 0 1 834 . 2 31 0 AUGUST 1 5 . 0 1 0 . 1 1 3 . 4 1 941 . 7 1 378 . 6 1 791 . 1 31 0 SEPTEMBER 1 5 . 1 8 . 2 1 1 . 9 21 62 . 0 1 1 40 . 7 1 61 5 6 30 0 . OCTOBER 12 . 0 7 . 7 10 . 3 1537 . 8 1004 . 5 1364 . 8 31 0 NOVEMBER 13 . 7 7 . 8 10 . 6 1852 . 3 1025 . 4 1369 1 30 0 . DECEMBER 1 6 . 7 1 0 . 6 1 3 . 9 2455 . 2 1 062 . 1 1 92 1 . 7 3 1 0 . .~:: . .-. !~~lillll~lill~li~l!lil ~~1~f~rt~~::::::~ ':~~~~:~:~;~~;~:~~:~~~:~:f~:~:~:: ANNUAL ::~$:~~~:~*;:~~~:~~:~:~:~:;:~{:r~: 29 1 .n................... MAXIMUM 16 7 !~~~~~~l 6 3 ..:.:-:..:.:.:.:-:.:.:.z.:.:.:.:.:.:-:.:-:.:. 3 1 0 . . ~~~~~*1~~~~~~J~~@~~~~~~~~~~~~: ..............._....._..._v............._.... ::::::::::::::::::::::::::::::::::::~:::::::; ... ............ .. . . ...."............. . ANNUAL im~1~1t~~:. .;~~~~~~~;~~~~~~~r~~~~~?~~;~~~t MINIMUM 0 1 ~~~lf~li~I~!I&ftjf.t!~ 26 3 1~~iti~~tr~~~~~~~~~I~~@r 28 0 . ::::::::::::::;:::::::::::::::::::::;::::::::: . n..................... ...........,.................................. .................-..... ............................................. ..... ... ............... ANNUAL . I_I 1&4 . AVERAGE 1 1 . 3 1 709 . 8 6034 1 76 -~---- TABLE 15 ANNUAL WASTE CHARACTERISTIC AND lOADING SUMMARY Final Effluent (E-001-5) YEAR 19Rfi 24-Hour Composite ANNUAL WASTE CHARACTERISTIC AND lOADING SUMMARY Final Effluent (E-OOI-S) YEAR 1986 24-Hour Composite tUTRITE-N CONCENTRATION lOAOING Cf- mg/l 0 kg/day . 0 MAXIMUM MINIMUM AVERAGE MAXIMUM MINIMUM AVERAGE :z 1.2 0.7 0.9 189.2 103.5 140.0 9 0 0.7 0.4 0.5 142.6 84.8 113.9 8 0 0.-7 0.2 0.4 133.8 40.0 99.4 8 0 1.8 1.0 1. 4 . --~ 282.5 152.0 195.3 9 0 2.6 0.3 1.1 388.2 44.6 1 66. 1 9 0 2.8 1.0 2.2 406.4 141.1 323.6 10 0 2.7 0.3 1.3 356.8 44.3 180. 1 10 0 1.6 0.7 1.0 213.4 91.6 127.7 8 0 1.9 0.5 1.2 251. 3 65.9 161 .0 9 0 3.1 1.4 2.2 398.4 183.9 284.4 9 0 2.5 0.8 1.5 325.1 104.3 196.5 8 0 1.5 0.4 1.0 218. 1 49.9 130.4 9 0 --~-p.~------ --~_.~..... ..... . . . PARAMETER MONTH JANUARY fEBRU ARY MARCH APRIL MAY .JUNE .11 IL Y AUGUST SEPTEMBER OCTOBER NOVEMBER OECEMBER ANNUAL MAXIMUM ANNUAL MINIMUM ANNUAL AVERAGE ---------~------~-------------------~-~--- CENTRAL CONTRA COSTA SANITARY DISTRICT TABLE 16 10 o .8 o 1.2 6034 1 - 76 ~_-.:.~. _..~-~..;-___ -- r -....;-==-'":........----...-...--l-......-......--.....----...-..:~~...."'-...-.~~.:.:;.::;:....-....--.......... . CENTRAL CONTRA COSTA SANITARY DISTRICT - ou r ompos I te PARAMETER CIl N I TRATE-N c: CONCENTRA TION lOADING l+-~ or- l+- ....., ~~ 0 ca mg/l kq/dav ro- . 0 ~j 0 ...... MONTH MAXIMUM MINIMUM AVERAGE MAXIMUM MINIMUM AVERAGE z >- JANUARY 7 . 1 5 . 4 6 . 0 1 200 . 5 773 . 0 959 . 1 9 0 - FEBRUARY 8 . 2 4 . 5 5 . 9 1 436 . 0 966 . 3 1 260 . 5 8 0 MARCH 5 . 5 3 . 0 4 . 3 1 420 . 8 560 . 3 1 027 . 2 8 0 APRil 5 . 5 3 . 2 4 . 5 ~ 913 . 2 507 . 5 747 . 8 9 0 - MAY 6 . 5 2 . 6 4 . 2 1 01 6 0 387 7 648 9 9 0 . . . .JUNE 5 . 5 2 . 5 4 . 0 798 .8 370 . 1 577 6 8 0 . . I , . .ltllY 5 . 9 2 . 0 4 . 1 803 . 7 300 . 5 558 . 7 1 0 0 AUGUST 6 . 6 4 . 8 5 . 9 879 . 4 621 . 4 789 . 5 8 0 SEPTEMBER 7 . 0 2 . 4 4 . 2 923 . 1 343 . 6 555 . 4 9 0 OCTOBER 5 . 9 4 . 2 5 . 0 768 . 2 548 . 6 659 . 6 9 0 NOVEMBER 10 . 2 3 . 5 7 . 2 1 301 . 1 454 . 7 918 . 7 8 0 DECEMBER 1 7 . 9 2 . 5 5 . 5 1 05 3 . 4 3 1 4 . 9 7 1 8 . 0 9 0 ANNUAL . . .~!~~;~1~tt~~~~~1i1~~~~: :!i'f~lj!!ii~~i.~f[ 1 7 9 1436 0 ..~~~~~~:~~:;:~:~:~:r::~:~~:~:~:;:~:~ 1 0 0 MAXIMUM . . ....................... ~::::::::::::::::::~::::::::::>;::~::::::: .:.:.:.=-=.:.:.:.:.;.:.:.:.:.:~.:.;:.;.:.;.: ...........................~.........~......... ...............................~............. ............................................... .............................................. :::::::.::<::::::::::::::::::'~::::=::::::::. ..........u........... .............................................~. ................ .. ANNUAL . . . ;tt~~~~~~~~~~~~~~~~f:~~~tt~ MINIMUM 2 . 0 300 . 5 1111~11!~~1~11~11'1 8 0 -...................... ANNUAL . . . . AVERAGE 5 . 1 785 1 6034 1 .7fi TABLE 17 ANNUAL WASTE CHARACTERISTIC AND lOADING SUMMARY Final Effluent (E-001-S) YEAR lqRfi 24 H C '~--:- -'= '" ------.. -. ------------------ CENTRAL CONTRA COSTA SANITARY DISTRICT ...... ./ ~ TOTAL PHOSPHORUS CII c CONCENTRA TION lOADING .....~ '-' or- ..... +.> ~~ 0 ctl mg/ 1 kg/day - . 0 ~~ 0 or- MONTH MAXIMUM MINIMUM AVERAGE MAXIMUM MINIMUM AVERAGE :z: :> JANUARY 6 . 8 4 . 4 5 0 5 1 072 . 2 695 . 9 889 . 9 9 0 - FEBRUARY 5 . 7 1 . 6 3 . 3 1 223 . 9 403 . 1 701 . 4 8 0 MARCH 4 :5 2 . 8 3 5 1 049 7 61 3 5 824 9 8 0 . . . . APRIL 5 0 2 2 3 9 ~ 842 9 373 1 654 4 9 0 . . . . . . - MAY 6 . 2 3 . 8 4 . 7 925 . 6 569 . 5 704 . 2 9 0 JUNE 5 . 2 3 . 1 4 .0 733 . 9 450 . 0 578 .8 8 0 . I . JULY 6 . 0 3 . 8 5 . 2 855 . 6 501 . 8 722 . 8 1 0 0 AUGUST 8 . 4 4 . 5 5 . 8 1 1 1 4 . 2 583 . 0 777 . 5 8 0 SEPTEMBER 6 . 2 4 . 4 5 . 4 887 . 5 594 . 5 730 . 7 9 0 OCTOBER 8 . 8 4 . 3 5 . 7 1 170 . 3 564 . 8 740 . 6 9 0 NOVEMBER 7 . 2 5 . 0 5 . 6 936 3 634 2 720 5 8 0 . . . DECEMBER 5 . 9 2 . 8 It . 8 903 . 8 365 . 8 629 . 5 9 0 . . . ... .... ................. . ::::::~~::::~:::::::::::~::~~::*::::~ ANNUAL 8 8 1 223 \~~~1~!j~ili~1~j!~~~i~~i~~~~ MAXIMUM 0 . 9 10 0 .:.:.:-:-:.:.:.:.:-:.:.:.:.:.:.:.:.:.:.:.:.:.: :~::~~::~~:::::~::~::::::::::::::::::::: ....... .......... ... - - ANNUAL . 1 6 ~r~:I~III!!IIIII~. . ~'I~!11IJ!!~II!li~I!III!1 MINIMUM 0 365 . 8 8 0 ::::::::::::::::::::::::::::::::::::::~:::::. ':~:::::::~:::::::::::::::::::::::::::;::::: ':::::::::~::::::::::::::::::::~:::::;:::::: ..................,.......................... ....................., ...................... ANNUAL . IJrI all . AVERAGE 4 . 8 722 . 9 6034 1 .76 --- TABLE 18 ANNUAL WASTE CHARACTERISTIC AND lOADING SUMMARY Final Effluent (E-001-$) YEAR 1986 24-Hour Composite .:i.~~~::~~~:~~~~~~~~~~~~~~~~~~~~~~~~:':~:~~~~i~~~~~~~~'~~~~~:~~;~~~:;-~,~~~';.:~;";:2~;;':~'~';.,;.o-'i.;~:';S':,~:;.i~;~'.;~:::;~:';~":::'.~~":"';"" - .'~.'..-=--'" . - .-. .: ~ ;; TABLE 19 CENTRAL CONTRA COSTA SANITARY DISTRICf WATER POLLUTION CONTROL DIVISION REQUIREMENT COHPLiANCE SUMMARY - RECEIVING WATER 1986 ... - COLIFORH ~E MACROSCOPIC ANAL YS IS C C Q.JE r- u...... n:lC I I ~c ~n:l . Q.J...... ~ ..c c. n:l n:l o...E +l +l >.. e ...... .- ...... Cll n:l 4.1 Gl C >n:l C E -0 I! ~ ~ C CtIa CQ.J -rl l-" O~ O~ -rl :J Q.J 0 ~ en en -0 en ~~ EE ..... E OOE OlOO EO -0 .c -rl 4.1 ..... E...... rl .... >,...... >, oE .... 4.1 .0 ..-4 0 n:ln:l n:lX ~ ~ )( C XI ~ ~ :J ~ ~ ell n:l 0...... 0 14- ~ 0 a ::l .... a c: "'0 .- "'OE E E C :c en I-< l-" 0 0- a Q.J ......... Q.J -0 -0 "'0 0 C 0... t:l Gl -rl N 0'1 Nr- Cllrl Qj....... Q.J...... 0 00 I-< O(j Q 4.1 ...... E - ............... >--- >--- > +l ...... ....., ~ ~ u a c ~ C C C 0'1 .-I c.c. .-I Ol, r- n:l .....,C -.-4 .... E c o LD n:l OE a E a E O~ n:lQ.J 4.1 a 4.J ~ 4.J a ~ ~ -r- N -r- ...... III en VI~ -,... -,... <1lt... <1l C <1l 4.1 Cll ~ I 0 "'0 I --r enrl mO VI+l ~ .n C\- a :J ~ a 4.J 4.1 C . Q.J C . -.-4 . -.-4 . ...... n:l ~ ~ ~c ~ ~ fJ a ~ a ~ Q ::JOE ::J 0 00 or-- o VI t... a ..x; u t... :>:l < Jan. Feb. -Mar. 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 all 0/1 0/1 0/1 Apr. May June 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 July Aug. Sept. 0/1 0/1 0/1 0/1 0/1 1/1 0/1 0/1 0/1 0/1 0/1 0/1 Oct. Nav. 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 Dec. . Tat. l'tax. Hin. Ave. : ......:... r ~.~-.....r-:~r-lI'.'~~;~';'~'. '-~~="';....~<!":.:..'..'._..:~::",:>:,~~~~, ,~....; ~~:~~-.~__:~~r:.-...'~:.,~; -'_ ~.~:~.:_~:~:~.~~'~~:..":..:.;:.".,: _h_ __ -:.....-.- . .- '.""':--";'~':'':~ . CEN.'.......L CONTRA COSTA S~NITARY nlSTR Table 20 . AI\IN'IAt. ftI::CElVtNG \VAn:~ nATA SlJt.1~A"Y VI'AU 1986 l'AII.U.li::U'!{ --------------- ------- .-- - ------ -------.--------.- ..- . . MONTH JANUARY FEBRUARY MARCH APRIL tJAY JUN= JULY AUGUSf SfPfE:-'HER OCTOBER ~OVEMgER OECEMBER AtJNUAL MAxmmA .... . ANNUAL f.1INIMUM ANNUAL I\VEii.'\(;f: - - ..' - .-- - UNIONIZED AMMONIA - N ---. ._-- - - CONCENTRATION ----------- MG/L . ell ___-.--------- 'f- <lI 0'9 ---,-------.-- --- .---- ~ ~ tJlAXIMUM rAINIMUM AVE\lAGE Z ell _ -- -::F: .. MAXIMUM fAINI~UM AVl:RACE .. .0.00 0.00 0.00 - .. '. , L 0.04 LO.01 ,(,0.02 .. .- 0.028 <'0.002 <0.010 ~ 0.001 \ < 0.001 <-0.001 _ j__ ;,wli;j"/: T ,:.:,,;<\:7#%, A ",LI:"U'2P' I . \ ....:.:...:: .....:.:.:[ ;^1~~ 6 <0.001 <0.0010 I<>i '\<CL..i 0.04 , .::....:... --------- - .'-f "':'. -..;..~, . ~ o ...... 'f- +-> 0<<:1 r- . 0 0-..... z> 6 '0 6 o 6 o 6 o - " o o (;046-1.76 4.. 4 ~. . ~-:r.~:'\;''ti';:~'l' >~;~,'';;.,;~,;,;,;~,~};r':r~~~~':::'';~~~':'<'~' " <.. ......- 4 ...;.......,........'..... ;..~_.......... - ......-:.- . .-':.:>.<<' . :-. .. ---- -.:-_.'--: .. ."~:." .~..'."< : CENb...i.. CONTRA COSTA S~NITARY OISTRI Table 21 . ANN'IAI. fU:CEIVING \VAH:~ nATA S\IM~A"Y I'^II;\i'.li::IH( -- ..-----.---- -----... ---' --.- f.10NTH JANUARY FEBRU AllY ._ .___.___UnllL l\.1AX1MUM MINl.\lUIA ~ '. .. MARCH 7.3 - - APRIL .... . tlAY L - JUN;: 8.0 ., JULY AUGUST SEPfE:'-UiER OCTORER t\:OVEM~ER 7.1 .7.4 8.0 7.4 nH AVl:HAGE 7.2 7.8 7.8 7.7 7.7 7.7 8.0 7.1 ; .. .....-c:: ..;:.::"<> --.--------- .... - -----. ------_.-~_.-._--_..- ':'.... . '.,\ ...... .-;...", . YEAIC. 1986 VI ___--.-------- '4- QJ 0"9 _--.-------.-- ..._ _____ . E tAAXIMUM fAINlt/lur..1 AVERAGE ~ ~ - -- - = .- 7.6 I \- J-=.... ':~T;~::W.;:~.;~:..;~\t~:\ . .. I __ .. __! ~::=1 ::. .... .. ...:..: ~H.<.\:. VI r o '+- -4J 0<0 r- .0 0''- z: > 6 o 6 1 . 6 1 6 o - G0-1t.>-1.7(; ~.T.::T",,;';.. ~'...',...:~-,..';;,';;,-.~ ~..,.~. , , '. ' " ' . " " ,.. '.,,'-~' ....."....'....'. " : '~- '.'.;,:- ,-'::';':';';":":';; >.:< :<..; ,:-;: - - ~""I'.."'.""'... ....,. . ,.....-.- . .....-~.. ._~.", . .... ~ ~, .. CENTh..- CONTRA COSTA SANITARY OISTRI( Table '22 . AI\IN~.JA'- m:CEIVING \VAH:11 nATA S\JMW\ttY nAH 1986 ... -- ..------------ ------- ..- - "AU.V..k ll'!l __IE&_~RATURE ----.- - -. - ---- - --.--. -" ..- . .- ~ 0 oC (I) ...... .-'---.--- - ------ .-- ,------- 'f- QJ 'f- +' 00. 0 .. -. - == - - .- .. JANUARY HBRU ARY .' MARCH 14 14 14 6 .. 0 '. - . APRIL : .. .' .. I'JAY .. , -- JUN:: 21 21 21 6 0 .. '. JULY AUGUST S(Pf(:'-1HER 18 18 18 6 0 OCTORER \ - I\:OVH..H:lEn 17 17 11 \-- 6 0 - O(C(lI.1HEH J~... ,- 'W . .:.:.:......:....:..:.:.:.:.... Im1 : ..... ,-'.'-",' }:::.:: -.. ..........'- ...........-......-.., < . . -..'... .. -.' . - -- ,.... -.. AtJNUAL .' ........ .... .' -.'" ...... .... . ...-.. .'.. ... . d"'" ...... .r;~::~~~\}~:;:t:;:::.: }\::,:,;: -..... ....-.... 21 .::: .' -... ".... - ....... .... ." -.. -- MAXI?JlUI'A . ." - .. - ,..' . . . ." ..... :::0::. ':../..:. .: . - - - .. . .'_.. ......... . ..... ---. . ..,." -. . . . . -.. . i I :'.:<::::':: ^NN\JAL I :'... 1'.1INIMUM 14 I '.'::{~ '::::> ! .. - .......-.......: ::. :':':.<:,: __J C MIlNUAC -__L I\V(ii:\(;{ 17.. 5 - - ----------- G04G-l .7(; - - ..- - ----~----- - -- - ---- - .. '. -... ~~-:. ~~ ~:~~-ri~~:"-'~.::~:~~~~:~f;':....' .~..::'~"..:_,~~~::~..-"'~~~'~'~"~ , . .- ....-.- . CENTh..,- CONTRA COSTA S~NITARY DISTRI{ Table 23 . J\NN~..IAl. nI:CEIVING WArf:11 nATA $\IM~A"Y I"AI(;\i'.lcrHi --------------- ------ t..10NTH JANUARY ___.Dl~~OLVED OXYGEN CONCENTRATION ---------.- MG/L. l\.1AXIMUM tAINl~UM AVl::RACE FE8RUARY .' MARCH 9.7 '. -- .. - APRIL - .. !'JAY -- , JUN= '- . . . JULY AUGU5 r SEP rE:'.1HER OCTOBER I\:OVEM~ER O(CEl\.lHE<< AtJNUAL MAXWIUM .... ANNUAL !'.1INIMUM Al\INUAC A VEH:\(;I .. .. - -- - I 198 _ J-- ~ ~ )::~\\~~~~~~;~~;\\::~ 'l'~~'::~~:"::'~:'-:';"";:; 1 0 5 ~.,'~:\~/r:::t:~.\:.:,:::'~-::':;\ . .:::((:?t'::' 1'\""::' ,-:,,::.,.,:. ':.: . '.' " .' :,': : '., .....: I .. I I. ; ':,'0-'1 ".:.:.::-'-...:..j ........~ - ~ ------'"--- 9.4 9.4 '9.0 9.0 7.7 9.2 9.1 9.7 ,,:-,,,' -:....., '.' 7.7 ::",'=r:.' . ----- ----- -- --- 9.6 9.1 8.7 nAlc.1986 - -----.---- ----.---- --- -.- SATUR~TION _.-------- -.- ~ 0'9 _-'!..--------- ____ _____ . E tJlAXIMUM t"IN1MUI'.\ AVERAGE. ~ ~ - - .-,== .. 105 102 103 105 98 104 99 85 95 9.1 99 98 85 . ..::::~~~~~~\j~:~i\!~ , .................... ". .:'. ':':.'\, .>):: ..;,:...... 9.1 100 ..... ". ---~, . . ~ ~ o -.- +-' 0<0 r- .0 0"..... :z: > 6 o 6 o 6 o 6 o <;046-1.71> ... . --. - ..-.~_.. .-. . '.. - .....,. ......~.. .' ."".~. .- ....-.- . ....;. . CEN', ..L CONTRA COSTA SANITARY DISTnl Table 24 . ANN\IA\. m:CEIVING \'IArr:1i nATA $lIM~A"Y Yl'.1\ 1...1986 <Il ___--- __ .____ __ '4- QJ 0'Q _--.-------.-- --------- 0 ~ rJlAXIMUM fAINIMUU AV(Rtl.GE Z <Il -- -1=: - .. --' .-----.---- ------ .-- l'AHAMclHt ___ __IQTAL COLIFORM MPN/lOO ml ----------- MONTH 1I.1AXIMUM MINI,'.lU,'.l AVl:HAGE JANUARY - FEBRUARY '. .' MARCH i600 350 812 - . APRIL - - tJAY - JUN:: '. . . JULY AUGUST SEPTE:'-1HER OCTORER 180 49 85 350 49 178 - r\:OVEt.tYER 540 79 226 - - O(CE...1BEH :-::::::::::-:-::: AtJNUAL 1600 .::-......:::;<.:.... MAXli'JlUM ....:":.: ;::"::..:.... .:.::..... .:-:. .:.:....::.>.... ANNUAL I &c - I t.1INIMUM 49 I ':;-::.:. , ,,-. .' ......--:c. cc.. .':" I ANNUAL , : 325 I\VER~Gf: . - - - - .-- ---- -. -' ----_._-~- - .. -- -~ - - - ------ -------- ---- --- I L J-':;i'~;;'/ - .~ ~\j';f!!;#'l 6 . \ .;;;; 6 .......: ..' _' L_-J--- . .... ...... .-;...,,. ~ o '4- +> 010 r- -0 0',- z> 6 o 6 o 6 o e o o o GO-'lb-1.7f; o. ..... ~:~~ -~ -: ~:'~''''~~:,'~'':'~~,:'~;~;>~.~.. ~ .... -"' .. ..~_...- . : '. .... 0 .. _~Io.;.-.__.....'--"" '0 -. CEN1. .'- CONTRA COSTA SANITARY DlSTRI Tab 1 e.: 25 . ANN'JAl. IlI::CEIVING \VArf:~ nATA SlJII.1t'.1A"Y Vl'AIC.-.l986 I'l\lIAl\lcH'!t -- . .-----.---- ------ .-- ---- -- -------- MONTH JANUARY FEBRUARY rJ1ARCH APRIL rJAY JUN!: JULY AUGUST SEPfE:'-1HER OCfORER ~OVEM9ER O(CElI.lIjEH Al'JNUAL MAXI?J1urJl ...... ANNUAL r.1INIMUM ANNUAl I\VERACf: ._ .___._kOJOR UNITS MAXIMUM M1Nl,\IUM AVcHAGE "200 200 200 35 35 35 30 25 27 40 40 40 .. .};\:;:jl) ":0'.':' .... 200::}::;:': :'{:'::/:-.:;'/ ,.::,:, I::::::.... . .. i I 25 I ~__ :__~' ... 76-\ .-- - -- ------- -------.----- TURBIP.llL-------- -- 4- ~ Or- NTU .'Q _--~-----..- ..-- ------ 0 ~ MAXIMUM t"INIM\lM I\Vf.RAGE z: CII -. - >=: - - .- 85 75 80 12 10 11 23 12 17 I 9G J,...:.!o. _ __ L__.l 29 8 85 ~ o 'r- 4- +-' oC'O r- '0 O'r- z: > 6 '0 6 o . 6 o 6 0 o o G04t>-1.7fi ~------~ ----T-~n-~____,__--.~- - .-) TABLE 26 ( OYERFlaf rnARAC1BUSTICS . . BASIN "e" OVERFLO\' BAS IN "B " INLET Chl ori ne Total T1me Resf dual pH TSS BOD Col ffonn Hours m~/l Unfts m~/l m~/l MPM/lOO ml 3/13 1800 0.0 7.4 43 19 46,000 2200 0.0 7.6 17 13 46,000 3/14 0200 0.0 7.4 27 14 46,000 0600 0.0 7.2 11 9 9,300 1000 0.0 7.5 27 11 <30 1400 0.0 7.5 25 9 <30 1800 0.0 12 <30 2200 0.0 8 <30 3/15 0200 0.0 7.5 19 10 0600 0.0 7.3 29 12 1000 0.0 7.5 22 7 <30 1400 0.0 7.5 33 13 <30 1800 0.0 7.4 24 13 <30 2200 0.0 7.4 32 16 <30 ( 3/16 0200 0.0 7.4 28 17 <30 0600 0.0 7.3 28 20 <30 1000 0.0 7.4 24 17 <30 1400 0.0 7.5 30 23 <30 1800 2200 3/17 0200 0.0 0600 0.0 7.4 16 31 4,300 1000 0.0 6.9 20 16 <30 1400 0.0 7.2 16 6 <30 1800 0.0 7.4 30 21 2,300 2200 0.0 3/18 0200 0.0 7.2 42 24 24,000 0600 0.0 7.3 44 24 2,300 1000 0.0 7.2 30 34 15,000 1400 0.0 7.3 27 21 4,300 3/19 1300 0.0 7.6 62 12 2,100 --"'!'---- .~~:~...::.~~-:.1 j' ., ( TABLE 29 W AUtJT mEEK BACKGROONO DATA UPSTREAM DOWNSTREAM 1986 Time Co1 iform Time Coliform Date Hours MPN/100 m1 Hours MPN/100 m1 3/12 1400 7.9 456 5 4,300 1400 7.6 172 4 4,300 3/13 1000 7.8 1120 4 46,000 1000 7.4 148 3 110,000 3/14 1000 8.3 249 2 15,000 1000 7.8 141 2 15,000 3/15 1445 7.8 804 4 4,300 1445 7.9 430 1 4,300 3/16 1000 7.9 688 2 4,300 1000 7.4 248 3 4,300 3/17 1400 8.1 188 12 4,300 1400 7.4 68 3 9,300 3/18 1400 8.1 140 2 2,300 1400 7.6 106 6 2,300 ( 3/19 1300 8.2 116 3 24,000 1300 7.8 84 2 4,300 " ,~,'i:;~~~ ':~\~,~~~i~,:.. ~i~~ ~.~ ~~~~~~~~ ~,~~ ~\ ~~ ~\ .~~.>~~~,f.'.j~.~ ;..~ ?~t~f~': :.;: , ~\;''''\ (\"'\\\','\'\ \'\\"""\-'';'''':'~~ 1<;; .,:-. . -......--.,....... .~ ".~ ... . - . ~-.:.-;.~;--:~:::...:~~~.;.:_~.;:;:_.. . w' .. TABLE 30 ORGHHC AND MET1LlIC POllUTANT SMP - lEST RESULTS . .. Method Det. *a oet. *b *c Parameter lim1t Lim1t Inf. Eff. Inf. Eff. Inf. Eff. Inf. Eff. Samo1e Date 3/19 3/19 6/20 6/20 9/ 9 9/ 9 12/10 12/10 Ana1vs1 s Date \ 9/26 9/26 12/31 12/31 Flow, M30 67.1 67.1 38.0 38.9 37.9 37.9 ~h h? ~? Ql ORGANOa-lLORINE PESTICIDES (EPA 608) Aldrin 0.004 <0.007 <0.007 <0.01 <0.01 <0.1 <0.1 <0.1 . <0.1 a-BHC 0.003 0.020 <0.01 0.01 0.02 <0.3 <0.1 <0.1 <0.1 / b-BHC 0.006 <0.008 <0.01 <0.01 <0.01 <0.1 <0.1 <0.1 <0.1 d-BHC 0.009 <0.008 <0.01 <0.01 <0.01 <0.1 <0.1 <0.1 <0.3 I g-BHC 0.004 0.063 <0.01 0.10 0.04 <0.1 <0.1 <0.1 <0.1 Chlordane 0.14 <1.0 <1.0 <1.0 <1.0 4,4-000 1 O.Oll <0.2 <0.2 <0.2 <0.3 4,4-ooE 0.004 <0.008 <0.01 0.02 <0.01 <0.2 <0.2 <0.2 <0.1 /4,4-ooT I 0.012 <0.058 <0.06 <0.06 <0.06 <0.2 <0.2 <0.4 <0.2 oiE;l dr1n 'I 0.002 <0.018 <0.02 <0.02 <0.02 <0.2 <0.2 <0.2 <0.1 / Endosu1 fan I 0.014 <0.01 <0.01 <0.2 <0.2 <0.2 <0.1 Endosulfan II I 0.004 <0.01 <0.01 <0.2 <0.2 <0.2 <0.3 I Endosu1 fan Sul fate 0.066 <0.093 <0.09 <0.09 <0.09 <0.4 <0.4 <0.4 1 <0.1 / Endri n 0.006 <0.031 <0.03 <0.03 <0.03 <0.1 <0.2 <0.3 <0.1 Endrin aldehyde I 0.023 <0.069 <0.07 <0.03 <0.07 <0.4 <0.4 <0.4 <0.1 Heptachlor 0.003 <0.01 <0.01 <0.1 <0.1 <0.1 <0.1 Heptachlor epoxide 0.083 <0.012 <0.01 <0.01 <0.01 <0.1 <0.1 <0.1 <0.1 Toxaphene 0.24 <0.3 <0.1 <4.0 <4.0 P03-1016 --- 5.8 <0.1 <0.1 <0.1 <3.0 <0.3 <0.3 ..c'0.3 PCB-1221 --- <0.1 <0.1 <0.1 <0.1 <3.0 <0.3 <0.3 <0.3 PCB-1232 --- <0.1 ' <0.1 <0.1 <0.1 <3.0 <0.3 <0.3 ~.3 PCB-1242 0.065 <0.1 <0.1 <3.0 <0.3 <0.3 <0.3 PCB-1248 -- <3.0 <0.3 <0.3 <0.3 PCB-1254 -- <0.3 <0.3 <0.3 <0.3 PCB-1260 --- <0.3 <0.3 <0.3 <0.3 I ORGANOA-lOSA-lORUS PESTICIDES / (EPA 614) 1 I Az i nphos methyl --- <1.0 <1.0 <1.0 <1.0 <1.0 <l.0 I oemeton -- <1.0 <1.0 <1.0 <1.0 <0.5 <0.5 <0.5 <0.1 loiazinon 0.012 <1.0 <1.0 25.0 2.3 <0.2 <0.2 <0.5 <0.1 I 01 sul foton -- <5.0 <5.0 <1.0 <1.0 <0.2 0.4 <0.5 <0.1 I Eth10n I -- <1.0 <1.0 <1.0 <1.0 <0.2 <0.2 <0.5 <0.1 I Ma 1 a th 1 on --- <1.0 <1.0 11.0 <1.0 0.3 0.3 <0.5 <0.1 I Parathion ethyl 0.015 <1.0 <1.0 <1.0 <1.0 <0.2 <0.2 <0.5 <0.1 I Parathion methyl 0.012 <1.0 <1.0 <1.0 <1.0 <0.2 <0.2 <0.5 <0.1 i Central Contra Costa PolW Sanftary Distrfct Laboratory Multi-Tech Laboratories CCCSO - .EPA 608, Brown and Caldwell Laboratories III. PESTICIDES AND PCBs Call test results fn ug/1 except as noted) *a Oet.=Detection, *b Inf.=Inf1uent, *c Eff.=Eff1uent ~..~'''~~'~-~ .... '. .;.. <7ii . ~'.-, . . :""~:"';;':'~'r~i'l;:'.::.:" <~-"\.~::'~~~'<:(\".,;.l(J':'-:'::'~')>":' '.' . - . ::. : J<~'-~,:-~ ~, . . ;'", .. ~... :: -:~t._"~~..~'t'.!' ';?'~~h'r' TABLE 31 ORGNHC AND METPlLIC POLLUTANT SMP - T!;ST RESULTS Central Contra Costa III. PESTICIDES AND PCBs (all test results in ug/l POlW Sanitary District except as noted) - cont'd Method I .. .' Det. *a Det. *b *c Parameter l1mit Limit Inf. Eff. Inf. Eff. Inf. Eff. Inf. Eff. Samole Date 3/19 3/19 6/20 6/20 9/ 9 9/ 9 12/10 12/10 Analvsi s Date 9/26 9/26 12/31 1~ Fl C1tl, foGO 67.1 67.1 38.0 38.9 37.9 37.9 36.62 32.91 - CARBAMATE H4D UREA PESTICIDES (EPA 632) Am i noca rb -- <1.0 <1.0 10.0 kl0.0 Barban 0.05 <1.0 <1.0 <1.0 "10.0 k10.0 Carbaryl 0.02 <1.0 <1.0 <10.0 <1.0 <1.0 ....10.0 k10.0 Carbofuran 3.2 56.0 <1.0 <50.0 <1.0 <1.0 ...10.0 k10.0 Chloropropham 0.03 1.5 <0.1 <10.0 <1.0 <1.0 10.0 10.0 Diuron 0.009 <1.0 <1.0 <10.0 <1.0 <1.0 10.0 '10.0 Fenuron --- <1.0 <1.0 <10.0 ~10.0 Fenuron- TCA -- <1.0 <1.0 <10.0 10.0 Fluometuron 111.1 I I <1.0 <1.0 <10.0 ..10.0 Linuron 0.009 I 3.9 <1.0 ,100.0 <1.0 <1.0 <10.0 ..10.0 Meth10carb I 0.02 <1.0 <1.0 <10.0 10.0 Methanyl I 0.9 <1.0 <1.0 <100.0 <1.0 <1.0 <10.0 <10.0 Mexacarbate I 0.52 <1.0 <1.0 --- --- Monuron 0.003 <1.0 <1.0 <10.0 <10.0 Monuron- TCA I --- I <1.0 <1.0 <10.0 10.0 Neburon 0.012 I <1.0 <1.0 <10.0 <10.0 Oxamyl 9.2 <1.0 <1.0 .....100.0 <1.0 <1.0 ....10.0 k10.0 Propham 0.07 <1.0 <1.0 10.0 k10.0 Propoxyr 0.11 <1.0 <1.0 ...10.0 k10.0 S1duron --- <1.0 <1.0 ....10.0 <10.0 Swepp -- --- --- *a Oet.=Detecti on, *b lnf .=Infl uent, *c Eff .=Effl uent ~~~fliljl~-~~M~"K...._'-'-=n~~~,~.-..,:-~ .. _ _ _ " _ .,~~;:_-: _ c '...;;." ~'-' - ~ -,,;,,,:,,~,:';':':'.:':'....ww~~~~"",,, '. '. TAS[E 32 ~.~.....-~v- -. :.:<~\~~~~;~~~ ;,:~_:\ "'-~'~' .. '1. w' .. ~_ .iC AND METAlLIC POLLUTN4T SMP - '::ST RESULTS Central Contra Costa FOlW ~An1~~rv District test results in . . II. BASE NUElRAl ACID EXTRACTl6lES (all ug/l except as noted) Analytical Test MaUlod Minimum Best Fit Value 625 laboratory Multi-Tech laboratories, Inc. Method 1986 1986 1986 1986 1986 1986 I Det. *a Det. *b *c I Parameter l1m1t l1m1t Inf. Eft. Inf. Eff. Inf. Eff. Int. Eff. Samole Date 3/19 3/19 6/20 6/20 9/ 9 9/ 9 12110 12/10 Analvs1 s Date 3/21 3/21 . 9/26 9/26 12/18 12/1R Fl CN, ~D 67.1 67.1 38.0 38.9 37.9 37.9 136.bZ 132.91 '*PP BASElNEUlRJIL EXlRACTJlBlES I Acenaphthene 1.9 I l <5.0 <5.0 <5.0 <5.0 <1.0 <1.0 <1.0 <1.0 I Acenaphthylene 3.5 1 <5.0 <5.0 <5.0 <5.0 <1.0 <1.0 <1.0 I <1.0 I Anthracene 1.9 <5.0 <5.0 <5.0 <5.0 <1.0 <1.0 <1.0 <1.0 I Benz 1 d1 ne 44.0 I <5.0 <5.0 <5.0 <5.0 <40 <40 <40 <40 I Benzo (a) anthracene 7.8 10.0 1<10.0 ....10.0 1<10.0 <1.0 <1.0 <1.0 <1.1 Benzo (b) fluoranthene I 4.8 KI0.0 1<10.0 ....10.0 1<10.0 <1.0 <1.0 <1.0 <1.1 Benzo (k) fluoranthene 2.5 KI0.0 <10.0 <.10.0 <10.0 <1.0 <1.0 <1.0 <1.1 Benzo (a) pyrene 2.5 10.0 10.0 1..-10.0 10.0 <1.0 <1.0 1.0 <1.1 Benzo (g,h,1) perylene 4.1 10.0 10.0 10.0 10.0 <1.0 <1.0 1.0 <1.1 Benzyl Butyl phthalate 2.5 10.0 11'10.0 1<10.0 20.0 <1.0 K1.0 1.0 <1.1 I B1s (2-chloroethyl) ether 5.7 <5.0 <5.0 <5.0 <5.0 <1.0 <1.0 1.0 <1.11 B1s (2~hloroethoxy) methane I 5.3 <5.0 <5.0 <5.0 <5.0 <1.0 <1.0 1.0 <1.11 B1s (2-chloro1sopropyl) ether I --- <5.0 <5.0 <5.0 <5.0 <1.0 <1.0 1.0 ~ <1.1 I B1s (2-ethylhexyl) phthal ate I 2.5 22.0 8.1 50.0 <5.0 k100 1<100 <100 100 I 4-Branophenyl phenyl ether I 1.9 <5.0 I <5.0 <5.0 <5.0 <1.0 <1.0 <1.0 <1.01 2-Chloronapthalene I 1.9 <5.0 <5.0 <5.0 <5.0 <1.0 <1.0 <1.0 <1.0 I 4-Chlorophenyl phenyl ether I 4.2 <5.0 <5.0 <5.0 <5.0 <1.0 <1.0 <1.0 <1.0! I Chrysene I 2.5 I <5.0 I <5.0 <5.0 <5.0 <1.0 <1.0 <1.0 <1.0 1 D1benzo (a,b) anthracene I 2.5 1<5.0 <5.0 ~ <5.0 <5.0 <1.0 <1.0 <1.0 <1.0 : D1-a-butylphthalate 2.5 <5.0 <5.0 80.0 9.3 <1.0 <1.0 <1.0 <1.0 : 1,2-D1chlorobenzene 1.9 22.0 <5.0 <5.0 <5.0 <1.0 <1.0 4 1<1.0 . '1,3-D1chlorobenzene 1.9 <5.0 <5.0 <5.0 <5.0 <1.0 <1.0 <1.0 I <1.0; 1,4-D1chlorobenzene 4.4 <5.0 <5.0 <5.0 <5.0 <1.0 <1.0 <1.0 <1.0' 13,3-D1chlorobenz1d1ne 16.5 r2O.0 1<20.0 20.0 k20.0 <40 <40. I <40 <40 : 101ethYl phthalate 122.0 <5.0 <5.0 <5.0 <5.0 <1.0 <1.0 <1.0 <1.0 ; D1methyl phthalate 1.6 <5.0 <5.0 <5.0 <5.0 <1.0 <1.0 <25 <25 ! I 2,4-D1nftrotol uene I 5.7 I <5.0 <5.0 <5.0 <5.0 <1.0 <1.0 <1.0 <1.0 : 2,6-D1nftrotoluene I 1.9 <5.0 <5.0 <5.0 <5.0 <1.0 <1.0 <1.0 <1.0 : 01 oetyl phthal ate I 2.5 <5.0 <5.0 <5.0 <5.0 <1.0 <1.0 <1.0 <1.0 : 1, 2-01 ph eny 1 hy dr az f ne I --- <5.0 <5.0 <1.0 <1.0 <1.0 <1.0 Fluoranthene 2.2 <5.0 <5.0 <5.0 <5.0 <1.0 <1.0 <1.0 <1.0 . Fluorene 1.9 <5.0 <5.0 <5.0 <5.0 <1.0 <1.0 <1.0 <1.0 Hexachlorobenzene 1.9 <5.0 <5.0 <5.0 <5.0 <1.0 <1.0 <1.0 <1.0 ; Hexachlorobutadfene 0.9 <5.0 <5.0 <5.0 <5.0 <1.0 <1.0 <1.0 <1.0 . Hexachlorocyclopentadfene --- 20.0 ....20.0 ~20.0 20.0 <1.0 <1.0 <1.0 I <1.0 Hexachloroethane 1.6 <5.0 <5.0 <5.0 <5.0 <1.0 <1.0 <1.0 <1.0 Indeno (1,2,3-cd) pyrene 3.7 1<10.0 ~10.0 1<10.0 1<10.0 <1.0 <1.0 <1.0 <1.0 Isophorone 2.2 1<10.0 1<10.0 kl0.0 10.0 <1.0 <1.0 <1.0 <1.0 *a Det.=Detectfon, *b Inf.=Influent, *c Eff.=Effluent, *PP=Prforfty Pollutant ~~"-th1~~~~q~~~'Q~n.~ .." t~~~;~::-:~~;~~~'J'~8~~."~;"';:;' '. .' . '. _ DlMrtNJOaalt:o :"-;-~'-"""';--;:"'~t\.'-.-:-_..~.. ... .~~-.-:-_-~~:-~~:-:::'~:''''''''''~~~~~SI~''''--''---'''>~~~IW~~''~~ , .. TABLE 33 ._ t- <R3NHC AND MET~LIC POlLUTN4T SMP - TEST RESULTS Central Contra Costa POlW Sanitary District II. BASE NUElRAL ACID EXlRACTABLES (all test results in ug/l except as noted) - cont'd " Method Oat. *a Det. *b *c Parameter Limit Limit Inf. Eff. Inf. Eff. Inf. Eff. Inf . Eff. Naphthal ene \ 1.6 <5.0 <5.0 <5.0 <5.0 <1.0 <1.0 <1.0 <1.0 Nitrobenzene 1.9 <5.0 <5.0 <5.0 <5.0 <1.0 ~1.0 <1.0 <1.0 N-Nitrosodimethylamine 1.9 <5.0 <5.0 <5.0 <5.0 80.0 1<80.0 ~80 .0 <80.0 N-Nitrosodi phenyl amine -- <5.0 <5.0 <5.0 <5.0 <1.0 <1.0 <1.0 <1.0 N-Nitrosodi-a-propylamine -- <5.0 <5.0 <5.0 <5.0 "40.0 1<40.0 1<40.0 <40.0 Phenathrene 5.4 <5.0 <5.0 <5.0 <5.0 <1.0 <1.0 <1.0 <1.0 I Pyrene I 1.9 <5.0 <5.0 <5.0 <5.0 <1.0 <1.0 <1.0 <1.0 2,3,7,B-Tetrachlorodibenzo-p-d -- <5.0 <1.0 <1.0 --- --- I r;2,4-Tr1chlorobenzene I 1.9 1<5.0 <5.0 <5.0 <5.0 <1.0 <1.0 <1.0 <1.01 Trichlorofluoromethane -- <1.0 <1.0 --- --- ACID EXTRACTABLES p-Chloro-~Cresol 3.0 --- --- 2-Chlorophenol 3.3 <5.0 <5.0 <5.0 <5.0 <1.0 <1.0 <1.0 <1.0 2,4-Dichlorophenol 2.7 <5.0 <5.0 <5.0 <5.0 <1.0 <1.0 <1.0 <1.0 2, 4-Dimethyl phenol 2.7 <5.0 <5.0 <5.0 <5.0 <1.0 <1.0 <1.0 <1.0 2,4-Dinitrophenol 42.0 <5.0 <5.0 <5.0 <5.0 <1.0 <1.0 1<25.0 1<25.0 4,6-Dinitro-Q-Cresol 24.0 <5.0 <5.0 <5.0 <5.0 <1.0 <1.0 --- --- 2-Nitrophenol 3.6 <5.0 <5.0 <5.0 <5.0 <1.0 <1.0 <1.0 <1.0 4-N i troph eno 1 2.4 <5.0 <5.0 <5.0 <5.0 <1.0 <1.0 1<25.0 <25.0 Pentachlorophenol 3.6 <5.0 <5.0 <5.0 <5.0 <1.0 <1.0 <1.0 <1.0 Phenol 1.5 <5.0 <5.0 <5.0 <5.0 <1.0 <1.0 <1.0 <1.0 2,4,6- Tr1chl oroohenol 2.7 <5.0 <5.0 <5.0 <5.0 <1.0 <1.0 <1.0 <1.0 N~ - *PP BASE N8J1RAL ACID EXTRACTABLES 14-Ch 1 oro- 3 -Me thy 1 ph enol <5.0 <5.0 <1.0 <1.0 2-Methyl-4,6-Dinitrophenol <5.0 <5.0 <SO .0 "50.0 I I C14 Fatty Ad ds 50 --- 200 -- I I C16 Fatty Ac1 ds 7000 --- 800 -- I C~S Fatty Ad ds ~OOOO -- 000 --- I C 1 estanol 200 --- --- --- I Chol esten-3-ol 30 -- --- -- I I I I I I I Recovery Rates I *a Oet.=Detect1on, *b Inf.=Influent, *c Eff.=Effluent, *PP=Pr1or1ty Pollutant ~~~~~r~lj~.t:~~~;'~\~~~---.-:'~-J1----- ;:-";'-~--:<":~.'" . . --- ..........~W..i,.,..~V.\L"WVW_......J. :, . _' J~'. '. . ._'--_ , '-"'-~~7,.~n.:~.:tQ()"l.o~1iU)"~"-""JlIO'''U_-'''-------- .. TABLE 34 ORG~IC AND METALLIC POlLUT~T SMP - TEST RESULTS . Central Contra Costa I. VOLATILE (all test results in ug/1 3Xcept as noted) POlW Sanitary District Analytical Test Method Minimum Best Fit Value 624 Laboratory Multi-Tech Laboratories, Inc. Brown and Caldwell Laboratories Method 1986 1986 1986 1986 11986 1986 I Det. *a Det. *b *c. limit Limit Inf. Eff. Inf. Eff. Inf. Eff. 3/19 3/19 6/20 6/20 9/ 9 9h 9 3/21 3/21 9/26 9/26 67.1 67.1 38.0 38.9 37.9 37.9 I*PP VOLATILES 1 -IAcrolein 10 <10 <10 Acrylonitrile 10 <10 <10 Benzene 4.4 0.2 1 < 1 < 1 Bromodichloromethane 2.2. 0.1 1 < 1 < 1 Bromoform 4.7 0.2 1 < 1 < 1 Brananethane 1.18 1 < 1 < 1 Carbon tetrachloride 2.8 0.12 1 < 1 < 1 Chlorobenzene 6.0 0.25 1 < 1 < 1 Ch 1 oroethane 0.52 1 < 1 < 1 2-Chloroethylvinyl ether 0.13 1 < 1 < 1 Chloroform 1.6 3.14 2 3 4 Chloromethane 0.08 1 <1.0 <1.0 Dibranochloromethane 3.1 1 1 <1.0 I <1.0 I 1,1-Dichloroethane 4.7 1 <1.0 <1.0 1,2-Dichloroethane 2.8 1 <1.0 <1.0 1,1-Dichloroethene 2.8 1 <1.0 <1.0 I trans-l,2-Dichloroethene 1.6 1 <1.0 <1.0 1 Dichloromethane 2.8 1 1 11 1<1.0 11, 2-Di ch 1 oropropane 6.0 1 <1.0 I <1.0 1 1,3-Dichloropropene 5.0 1 <1.0 <1.0 I Ethyl benzene 7.2 1 <1.0 I <1.0 I 1,1,2,2-Tetrachloroethane 6.9 1 <1.0 <1.0 I 1 Tetrachloroethene 4.1 1 16 <1.01 Toluene 6.0 1 2 <1.0 11, 1,1- Trichloroethane 3.8 1 <1.0 <1.01 1,1,2-Trichloroethane 5.8 1 <1.0 <1.0 Trichloroethene 1.9 1 <1.0 <1.0 Vin 1 Chloride 1 <1.0 <1.0 NON - PP VOLATILES I I Acetone 10 1--- I 10 Dimethyl disulfide 10 20 Isopropanol 10 6 Methane thiol 30 10 Xy 1 ene isomer s 3 *~ np.~_=np.tect1on, *b Inf.=Influent. *c I Recovery Rates I I r- u a: I- if) o >- a: <( I- Z <( if) <( I- if) o u <( a: I- z o U -l <( cr I- Z U.J U UJ 19 <( a: UJ > <( >- -l I I- Z o L I Z o if) if) L UJ if) if) <( L o z <( z o ~ a: I- Z U.J U Z o U -- U o N @ >- ro "'0 U1 '--" 8 co I- z: U.J :::> -l LL LL UJ -l <( Z LL >- -< o "- (.!;I ~ o o ~ r.n !!? 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" . . . . . . . . . . . . . . . . . . . . . . . . . . . . \ 0"0 ./ K., -.J 4: ::>- :> c::: ::> (/) ~ o lJ')I: II ::> I-~ !:~ -, ....J~ (/) UJ o Q. Z x o t- :r: U1 l.L t- Z w ::) .....J l.L l.L W .....J <( Z l.J... o o c> ()\ U":' OJ u.' (J' ui => a: > ~. -<( _.-J o ro ",0 t." N t I I I o (1\ i ro i 1.0 -!- r'. ro 0\ ::r: t- Z -DO L If) '\T r--) I 1 N I I I I I j -----,- LD r-- C" r-. \C. 0:;. 0\ Cl: w co L w u w o I >- a: <( ::) Z <( J (8 A& .a. Centr.. Contra Costa Sanltar) District BOARD OF DIRECTORS I I PAGE 1 OF ~ POSITION P APE R I BOARD MEETING OF Ma rch 5, 1987 NO. IX. SOLID WASTE 1 SUBJECT CONSIDER REQUEST BY ORINDA-MORAGA DISPOSAL SERVICE, INC. TO IMPLEMENT A REDUCED SENIOR CITIZENS RATE FOR REFUSE COLLECTION IN ZONE 1 (ORINDA SERViCE AREA) AND ZONE 1A (MORAGA SERVICE AREA) DATE February 26, 1987 TYPE OF ACTION CONSIDER RATE CHANGE SUBMITTED BY Walter Funasaki, Finance Officer INITIATING DEPT./DIV. Administrative/Finance & Accounting ISSUE: Orinda-Moraga Disposal Service, Inc. has requested the Board of Directors to authorize the implementation of reduced senior citizens rates in Zones 1 and 1A. BACKGROUND: During the last rate-setting determination which established the refuse collection rates effective July 1, 1986 for the Orinda and Moraga service areas, the City of Orinda advised the Board of its interest in pursuing with Orinda-Moraga Disposal Service the implementation of reduced senior citizens rates. The City proposed a program under which a twenty-five percent di scount woul d be offered to senior citizens with limited income. The program, however, would not be based on an income test, but on submission of signed applications by interested senior citizens who would understand that the program was designed to apply to individuals who are 65 years of age or older and whose income limitations warranted the discount. The Board of Directors requested that the City and the refuse collector develop a firm proposal, including an estimate of the number of participants and the expense effect on the community-at-large. The refuse collector has since worked with the City of Orinda in developing the senior citizens discount program, and the application form to be used to enroll in the program (Attachment I). The Town of Moraga has also endorsed the program, and wishes to provide the discount to its senior citizens. The City of Orinda has advised the Board of its interest in the discount program by letter dated February 26, 1987 (Attachment II). The Moraga Town Manager has advised District staff that a request by the Town Council, addressed to the Board, to iMplement the discount program will be delivered following its next Council Meeting on March 4, 1987. The refuse collector has requested Board authorization to iRlpl ernent the senior citizens di scount program by letter dated February 25, 1987 (Attachment III). The refuse collector wishes to proceed with implementation of the discount program immediately upon authorization by the Board. As a result of providing for the time necessary in publicizing the program through the media and billing inserts and in processing appl ications received, the initial month in which discounts will be reflected in senior citizens' bills will be June 1987. The resulting reduction in revenue during the one month then remaining in the present twelve-month rate period will be borne by the collector, as other customer rates will not be changed. In subsequent years, the di scounts real ized by senior citizen partici pants will be apportioned to nonparticipant rate payers. A summary of the estimated effect of REVIEWED AND RECOMMENDED FOR BOARD ACTION 130:!A.9/85 WN F PM /JixN~~F ENU :5GE.R J. DOLAN INITIATING DEPT./DIV. ?0~' ~ SUBJECT CONSIDER REQUEST BY ORINDA-MORAGA DISPOSAL SERVICE, INC. TO IMPLEMENT A REDUCED SENIOR CITIZENS RATE FOR REFUSE COLLECTION IN ZONE 1 (ORINDA SERVICE AREA) AND ZONE lA (MORAGA SERVICE AREA) POSITION PAPER PAGE 2 OF 7 DATE Februarv 26, 1987 the discount program for the one month, and for an entire year, based on the refuse collector's projection of participants in the City of Orinda and the Town of Moraga, is shown in Attachment IV. RECOMMEN:>ATION: Consider the requests of the Orinda-Moraga Disposal Service, Inc. and the City of Orinda and Town of Moraga to authorize the impl ementation of the senior citizens discount program in Zones 1 and lA, based on the resulting reduction in revenue in the present rate period being borne by the refuse collector, and being apportioned to other customers in subsequent years. --------.. 13026-9/85 ATTACHMENT I Pc1:;ge. 1 of 2 FILL DATE: APPLICATION FOR SENIOR CITIZENS REDUCTION ON GARBAGE RATES (ORINDA SERVICE AREA) Orinda/Moraga Disposal Service will allow a reduced rate for garbage collection to qualified senior citizens who are in need of this program. The reduction is $3.00 per month and applies oNly to basic residential services. Senior citizens already receiving leRs than basic residential services and rates will receive a $1.50 reduction per mOlith. Senior citizens who wish to apply for the garbage rate reduction may complete this application and mail it to: OriLda/Moraga Disposal Service P. O. Box 659 Orinda, Ca. 94563 Telephone: (415) 254-2844 NAME: LAST FIRST INITIAL SOCIAL SECURITY NUMBER SERVICE ADDRESS CITY STATE ZIP DATE OF BIRTH TELEPHONE QUALIFYING SENIOR CITIZENS Applicant .-nust (a) be: a customer in good standing of this company and the garbage service (other than legal dependents), and sixty-five years of age or older. sole user of the (b) PROOF OF AGE A copy of any of the following documents will generally be accepted as satisfactory proof of age: (a) A copy of your Medicare Card; (b) Hospital Birth Record; (c) Church Baptismal Record, established during the first few years of life, showing the date of birth; (d) Document issued by the Social Security Administration clearly showing eligibility for benefits as of age 65 or older: (e) Any other document proving you to be over 65. It is intended that this rate would be used by Seniors who are in need of the reduced rate. Please remember the differential cost or the amount of discount will be borne by non- seniors. Please do no-~ use this service unless necessary. I, the undersigned, do certify that I am the sole user of garbage service at the above address (except for my legal dependents), that I am over the age of 65 ahd that all the above information is accurate and true to the best of my knowledge. DATE SIGNATURE ATTACHMENT I Page 2 of 2 FILING DATE: APPLICATION FOR SENIOR CITIZENS REDUCTION ON GARBAGE RATES (MORAGA SERVICE AREA) Orinda/Moraga Disposal Service will allow a reduced rate for garbage collection to qualified senior citizens who are in need of this program. The reduction is $2.50 per motth and applies only to basic residential services. Senior citizens already receiving less than basic residential services and rates will receive a $1.00 reduction per month. Senior citizens who wish to apply for the garbage rate reduction may complete this application and mail it to: Orinda/Moraga Disposal Service P. O. Box 659 Orinda, Ca. 94563 Telephone: (415) 254-2844 NAME: LAST FIRST INITIAL SOCIAL SECURITY NUMBER SERVICE ADDRESS CITY STATE ZIP TELEPHONE DATE OF BIRTH QUALIFYING SENIOR CITIZENS Applicant must (a) be: a. customer i;igood standing of this company and the ,garbage service (other than legal dependents), and sixty-five years of age or older. PROOF OF AGE sole user of the (b) A copy of any of the following documents will generally be accepted as satisfactory proof of age: (d) A copy of your Medicare Card; Hospital Birth Record; Church Baptismal Record, established during the first few years of life, Showing the date of birth; Document issued by the Social Security Administration clearly showing eligibility for benefits as of age 65 or older; Any other document proving you to be over 65. (a) (b) (c) , (e) It is intended that this rate would be used by Seniors who are in need of the n-duced rate. Please remember the differential cost or the amour,t of discount will be borne by ilOP- seniors. Please do not ,use this service unless necessary. I. the undersigned. do certify that I am the sole user of garbage service at th8 above address (except for my legal dependents), that I am over the age of 65 and that all the above information is accurate and true to the best of my knowledge. SIGNATURE DATE ._------. ATTACHMENT II 26 orinda wav . orinda . california 94563. 415.254-3900 February 26, 1987 Mr. Paul Morsen Central Contra Costa Sanitary District 5019 Imhoff Place -Martinez, CA 94553-4392 Dear Mr. Morsen: You have inquired as to the position of the City of Orinda relative to a recent senior discount proposal by Mr. George Navone of the orinda/Moraga Disposal Company. During the past year, the City Council has expressed interest in this concept and has appointed a committee of two councilmembers to meet with Mr. Navone to discuss the possibility of implementation. The issue of support for this program has not been presented to the full City Council, and while the committee has worked closely with Mr. Navone, this cannot be construed to represent an endorsement, nor should it be inferred that support does not exist. The issue simply has not been addressed. I understand that the Board of Directors of the District. will be discussing this item in the near future. Please advise me if further information would be of assistance. Sincerely, ~1J;N c:.t--.1/ ~ Tom Sincl~ir City Manager TS:nh cc: George Navone City Council Gown of OJoraga 350 RHEEM BOULEVARD, SUITE 2 P.O. BOX 188 MORAGA, CA 94556 ( 415) 376-5200 March 5, 1987 Central Contra Costa Sanitary District Board of Directors 5019 Imhoff Place Martinez, California 94553 Attention: Paul Morsen The Town Council of the Town of Moraga, at its regularly scheduled meeting of March 4, 1987, considered a request for a Senior Citizen Reduction on Garbage Rates as outlined by Orinda- Moraga Disposal Service, Inc. The Town Council, after due deli- beration, was unable to support this proposal and desires to have its action considered by your Board. GCC:cjw ATTACHMENT II I DtSPOSJ.\l SERV'CE~ '~I~\ ~ P.O. Box 659 <"~ " <C ~ o ~ ~ , <( Q ~ ~ .... ~ o . Orinda, California 94563 . Phone (415) 254-2844 Feb. 25, 1987 Honorable Nels Carlson, President Members of the Board of Directors Central Contra Costa Sanitary District 5019 Imhoff Place Martinez, Ca. 94553 Dear Members, When our 1986 rate study was initiated, a senior citizens rate program was requested by the Cities of Orinda and Moraga. Over the last several months, we have been meeting with Orinda and Moraga representatives and we have reached an agreement as to a senior's rate structure. This company has proposed to the City of Orinda a senior's discount rate of $3.00 per month for our full service customers and $1.50 per month for less than full service. In Moraga the rate of discount would be $2.50 and $1.00. Both Orinda and Moraga have agreed to our proposal. Therefore, we respectfully request that this company be authorized to implement this program as soon as possible. The impact on our general rate structure is not know at this time. Discussion with representatives of Orinda and Moraga indicate that the impact will be negligible. Assuming that we are authorized to start this service, we will begin immediately. First, notification will be by newspaper publication. Second, we will put an insert in our quarterly billings so that the entire program will be operative by June 1st. 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