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Home My WebLink AboutAGENDA BACKUP 02-18-88 . Centr.... Contra Costa Sanitar~ District BOARD OF DIRECTORS PAGE 1 OF 2 POSITION PAPER BOARD MEETING OF 18 1988 NO. IV. CONSENT CALENDAR 4 QUITClAIM SEWER EASEMENT, JOB 4252, PARCEL NOS. 2 AND 3, SUBDIVISION 6549, DANVILLE-SAN RAMON AREA DATE Februar 9, 1988 TYPE OF ACTION SUBJECT APPROVE QUITClAIM OF EASEMENT SUBMITTED BY Denni sHall En in er INITIATING DEPT./DIV. Engineering Department/ Construction Division ISSU.E: Bl ackhawk Corporati on, owner-developer of Subdivi si on 6549, has requested the District to quitclaim certain sewer easements which lie within Subdivision 6549. BACKGROUND: The subject easements were granted to this District in February 1987. Technical errors have been discovered by District staff in the legal description and maps for these easements. Repl acement easements have been granted to correct the errors in the original easements. The District's quitclaim processing fee has been paid. RECOMMENDATION: Approve Quitclaim Deed to Blackhawk Corporation, Job 4252, authorize the President of the District Board of Directors and the Secretary of the Di strict to execute sai d Quitcl aim Deed, and authorize the Quitcl aim Deed to be recorded. REVIEWED AND RECOMMENDED FOR BOARD ACTION 1302A.9/85 (flY DH w !1d{J INITIATING DEPT./DIV. JSM RAB cEKTIlAL CQKTIlA COS- . NIT"" , DISTRICT RIGHT or WAY R SEWER .....13438""'887. _........ _.". _.... ._....., v......... EKIS1:IO'W/P, ,SMI.$E'wFIr EA.S'~ RIGHT 0' way lOa' FOR SEWER ~il'Il3438"",888 .'r,} SUBD. 654.9 3 !.~) / /vi .1-l; ~: ) '''; \4,; '.) :t "( ..A l~: p.(Iw, \ 1"CV ~IJI \ , \ \ .Q:l ~ ~ '1; Cl.. f.() T 2 (IC';"'C"- .......1 . I""" '''':'i;.. ""<<ElZ / I EK'ff ,,,'w/IM // s.tAI SE_A' EASE. I I LOTI I 1'g,t1-U (Ie:<. c:>-) .4Z' 0tJ NP.J{, 1~4~ ~I'- ."CIL~ one ()CT(J4f,(l 1M? .10. Jf ./252 ....Iter L....l.i.l.- ....... .,,/WYAJllfM/AJPNI'.t.s:sa;:....C..C,I. ICA&.I /--/a:) , h,. OCT#~ JOt ";~Z5Z ... UY,,/N (MVA'I"NY A.s.s<<: SCaLI /.....-. ;..-.:,'.;..:.........,. i { ,; -~--- \ '''J QUITCLAIM EASEMENT JOB 4252 - PARCELS 2 AND 3 DANVILLE - SAN RAMON AREA . Central ...;ontra Costa Sanitary .Astrict BOARD OF DIRECTORS PAGE 1 OF 2 POSITION PAPER BOARD MEETING OF Februar 18, 1988 NO. IV. CONSENT CALENDAR 5 SUBJECT ACCEPT GRANT OF EASEMENT FROM WALNUT CREEK PROPERTIES AT A COST OF $3,100 - JOB 4181 - PARCEL 2 - WALNUT CREEK AREA DATE February 9, 1988 TYPE OF ACTION ACCEPT GRANT OF EASEMENT SUBMITTED BY Dennis Hall, Associate Engineer INITIATING DEPT./DIV. Engineering Department/ Construction Division ISSUE: The subject easement is required for a portion of the 60-inch trunk sewer which is being constructed in conjunction with the Walnut Creek Bypass Project. BACKGROUND: The easement is located in the parking lot on the north side of the Safeway store on Mt. Diablo Boulevard in Walnut Creek. The sewer facilities are being constructed in a way which will permit the continued use of the surface area for customer parking. The value of the easement was based on twenty (20) per cent of the full value of land in the area of the easement. Funds for the purchase of the easement are incl uded in the money which the Board authorized for the acquisition of land rights in and adjacent to the abandoned Southern Pacific Railroad Right-of-Way from Monument Boulevard South to the Larwin Pump Station in San Ramon. Construction in the vicinity of the easement is presently proceeding under a right of entry permit. The subject Grant of Easement will establ ish permanent rights for the construction, maintenance, repair, and access to the sewer facilities. RECOMMENOATION: Accept easement at a cost of $3,100 from Walnut Creek Properties, Job 4181, Parcel 2, authorize the President of the District Board of Directors and the Secretary of the Di strict to accept the Grant of Easement and authorize the Grant of Easement to be recorded. REVIEWED AND RECOMMENDED FOR BOARD ACTION 1302A-9/85 iJrq DH ^---- INITIATING DEPT./DIV. JSM pAFlCEL ,WO (6162 O.Fl. 822) ..,.O~40C.' ~ . gL-VD. M" OI.ABl-O CD ft&&t< 01' c ,. ,"AJ...N pF.:ft1'J&.? 'f1 pftO Y S. F SAfE:.WAY SrOp.G sIrE ACCEPT EAS01ENT JOB 4181 PARCEL 2 WALNUT CREEK AREA I. c. JOB 4\31 PARCEL 2. 2315-$/85 . CentrA. Contra Costa Sanitar) District BOARD OF DIRECTORS PAGE 1 OF 2 POSITION PAPER BOARD MEETING OF Fe NO. IV. CONSENT CALENDAR 6 SUBJECT DATE EXEOJTE "CONSENT TO EXEOJTION OF DEED FOR PUBLIC ROADS" TO CONTRA COSTA COUNTY - JOB 3200 - PARCEL 2 - AlAMO AREA TYPE OF ACTION CONSENT TO DEED FOR PUBLIC ROAD SUBMITTED BY Denni sHall Associate En ineer INITIATING DEPT./DIV. Engineering Department/ Co ISSUE: Stone Valley Road, a County road, is being widened 25 feet by the granting of a deed to the County. This widening runs across an existing lO-foot wide District sewer easement. BACKGROUND: The County requi res a "Consent to Execution of Deed" whenever a parcel of 1 and is deeded to the County for public use if sai d parcel encroaches upon an existing easement. This is our standard "Consent to Execution of Deed" document; the District retains prior rights. RECOMMENDATION: Approve the "Consent to Execution of Deed for Public Roads" with Contra Costa County, Job 3200, authorize the President of the Board of Directors and the Secretary of the Di strict to execute sai d agreement, and authorize the document to be recorded by Contra Costa County. REVIEWED AND RECOMMENDED FOR BOARD ACTION JSM RAB INITIATING DEPT.lDIV. 1302A.9/85 6.<< DH /14 f1l? SlONE VALLEY R(" ,~___-____-- --- -- m >< v; :j~ -- --- zo=-=-= In - 2'? HIGHWAY SETBAC ~ C3'\Oq OR qS) 4 l\ AREA OEOICHED TO T THE COUNTY OF CONTRA COS A E1..ISTING", N87"47'47l- ~ - - -1:=J41.44' -7 ULTIMATE 'i N88"G'3'"E t- N81'47'41"E _ ~ _ - - tc'3 ~/~ 1;;( . , .. ~ A~A QC CONSENT 1 . .. __L ~ ~ ~'\ ~ll ~ll 9t ~ ~.... ~ Mll I\~ ~:o"UI 'j>or- -)>)>8 zonlTl ~. ITl )>z_z -0(/\ z~)>< ITl )> ~n"Ur o~r C<1Tl z)>-< -l-l -<1Tl 17708' \ g..'.:;';.'C(j R -;", " ~t .':'... 'I"!NII CUMI'U.' ~ '.>,;':'j VlfIA ;. ~I~~~ ,....,."..tig;;~. 1.'1; R __~. llf'V':. CONSENT TO DEED FOR PUBLI C ROAD JOB 3200 PARCEL 2 ALAMO AREA . Centra ':ontra Costa Sanitar~ Jistrict BOARD OF DIRECTORS I PAGE 1 OF 3 POSITION PAPER I BOARD MEETING OF February 18, 1988 SUBJECT NO. IV. CONSENT CALENDAR 7 DATE February 8, 1988 AUTHORIZATION FOR P.A. 88-6 (ALAMO) AND P.A. 88-7 (LAFAYETTE) TO BE INCLUDED IN A FUTURE FORMAL ANNEXATION TO THE DISTRICT TYPE OF ACTION ACCEPT ANNEXATION FOR PROCESSING Dennis Hall, Associate Engineer INITIATING DEPT.lDIV. Engineering Department/ Construction Divison SUBMITTED BY Parcel No. Area Owner Address Parcel No. & Acreage Remarks Lead Agency 88-6 Alamo Eagle Rock Financial Corp. Property owner intends to CCCSD (77E4 ) POBox 407 construct one single Alamo CA 94507 family residence. 197-020-014 (18.76 Ac.) CCCSD to prepare "Notice of Exempt ion. II 88-7 La fayettE Mitchell Ward Existing house - fail ing CCCSD (46B6) 3490 Springhill Court septic system. Lafayette CA 94549 CCCSD to prepare "Notice 230-110-006 (0.62 Ac.) of Exemption." RECOMMENDATION: Authorize P.A. 88-6 and 88-7 to be included in a future formal annexation. REVIEWED AND RECOMMENDED FOR BOARD ACTION 130211 .9/85 ~~y DH 1/ fl/ flI}fJ ~b{vAl;7:: INITIATING DEPT.lDIV. JSM RAB / ROGER J. DOLAN I "- "- ....... ........ ) / / c:! PROPOSED ANNEXATION AA. 88-6 .. ,\,,"(.. ,s ," ...'\~':"<.~ ....\, + SEUIT 4. '" DICKEY 11 55 " I I I 1- '" . . _...."/ -. ~~~._,' . ~---.:::-- i ~ A I- +- GILMORE "_M AC /"" / / / / ( PROPOSED ANNEXATION P A. BS - 7 . Centr,,"-. Contra Costa Sanlta. ~ District BOARD OF DIRECTORS PAGE 1 OF 1 POSITION PAPER BOARD MEETING OF Februar 18, 1988 NO. IV. CONSENT CALENDAR 8 SUBJECT ACCEPT lHE CONTRACT WORK FOR lHE WET WEAlHER HYDRAULIC CAPACITY IMPROVEMENTS PROJECT <DISTRICT PROJECT 20042) AND AUlHORIZE lHE FILING OF lHE NOTICE OF COMPLETION DATE January 21, 1988 TYPE OF ACTION ACCEPT CONTRACT WORK SUBMITTED BY Munawar Husai n Associate En ineer INITIATING DEPT./DIV. Engineering Department/ Construction Division ISSUE: Construction has been completed on the Wet Weather Hydraul ic Capacity Improvements Project, and the work is now ready for acceptance. BACKGROUND: In February, 1986, severe rainstorms generated more wastewater flow than the treatment plant system could adequately accommodate. During peak flow times, untreated wastewater, which coul d not be processed in a timel y manner through the primary clarifiers, was discharged to overflow holding basins along with primary treated wastewater. On two occasions this peak flow condition necessitated partial throttling of the influent gates to the plant which contributed to the upstream backup of sewage in the collection system of Pleasant Hill. The recentl y compl eted wet weather hydraul ic capacity improvements all ow for a quicker and more efficient flow circulation within the treatment plant during peak flow times. The improvements are also expected to result in the reduction of odors during peak flows and minimize the potential for upstream collection system backups. The project is described in the 1987-88 Capital Improvement Budget starting on Page TP-29. Stacy and Witbeck, Inc. was issued a Notice to Proceed on May 6, 1987. The original contract completion date was December 2, 1987. All work was substantially complete by January 22, 1988. Appropriate time extensions were negotiated with the contractor as a result of extra work and related issues. It is appropriate to accept the contract work at this time. A detailed accounting of the project costs will be provided to the Board at the time of project closeout. RECOMMENDATION: Accept the contract work for the Wet Weather Hydraulic Capacity Improvements Project <District Project 20042) and authorize the fil ing of the Notice of Completion. REVIEWED AND RECOMMENDED FOR BOARD ACTION 130:?A..9/85 MH RSK JSM RAB J1~ '2k lIJiJ INITIATING DEPT./DIV. . Centr.. Contra Costa Sanitar District . BOARD OF DIRECTORS PAGE 1 OF .58 POSITION PAPER BOARD MEETING OF February 18, 1988 NO. v. TREATMENT PLANT 1 BOARD ACCEPTANCE OF THE 1987 SELF-MONITORING PROGRAM REPORT DATE February 9, 1988 TYPE OF ACTION SUBJECT ACCEPTANCE OF REPORT SUBMITTED BY Charles W. Batts Plant Operations Division Manager INITIATING DEPT.lDIV. Plant Operations Department ISSUE: The Central Contra Costa Sanitary District's Self-Monitoring Program annual report for 1987 has been prepared for submission to the Cal Hornia Regional Water Quality Control Board, San Francisco Bay Section. This report is presented to the Board at this time for its information and acceptance. BACKGROUND: All effl uent requi rements were met throughout the year with the exception of 19 non-zero chlorine residual, 8 total coliform, and 16 pH violations. These matters are discussed in the "Comments" section of the 1987 Sel f-Monitoring Report. 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 concentrations. There was a total of 14,418 mill ion gallons of wastewater treated for an average daily flow of 39.5 mill ion gallons. This flow is approximately ten percent lower than 1986, apparently due to the dry winter. The treatment plant operated throughout the year and produced an effluent with an average BOD and total suspended sol ids concentrati on of 7 mg/l and 11 mg/l, respectivel y. The BOD and total suspended sol ids removal efficiency for the plant averaged 96 and 94 percent, respectively. Solids disposal during this year involved the incineration of dewatered sludge in the District's multiple-hearth furnaces, and approximately 3,030 tons of furnace ash was disposed of by hauling to Acme Fill. There was only a total of 2,692 tons of wet weight of dewatered sludge hauled to Acme Fill. This material met the regulatory criteria for off-site disposal. Upon acceptance of this report by the Central Contra Costa Sanitary District Board of Directors, the 1987 Annual Self-Monitoring Report will be submitted to the California Regional Water Quality Control Board. RECOMMENDATION: Acceptance of the 1987 Annual Self-Monitoring Program Report. REVIEWED AND RECOMMENDED FOR BOARD ACTION 130211.9/85 CENTRAL OONTRA COSTA SANITARY DISTRICT DISOIARGERS ~NITORllE PROORAM REPORT REPORTING DISCHARGER Central Contra Costa Sanitary District DATE OF REPORT: February 11, 1988 RESOlUTION: 84-77 REPORTING PERIOD: January - December 1987 c:xM4ENTS: Enclosed is the 1987 annual report. The report presents yearly totals, averages, maximum and minimum values of the District's influent, final effluent, sl udge, ash, and receiving water quality parameters. Important data are al so presented graphically. All sampling analyses were performed in accordance with the Water Quality Control Board's Resolution No. 84-77. The final effluent quality remained in compliance with applicable NPDES standards except for 19 non-zero chlorine residual, eight total coliform, and 16 pH viol ations. The maximum and minimum chlorine residual readings recorded were 9.9 and 1.4 mg/l, respectively. The total duration of the violations was 5.6 hours out of 8,760 hours of continuous monitoring by on-line chlorine residual analyzers <0.06 percent). Most of the viol ations were caused by sudden and temporary dechlorination process control problems. The causes of the total col iform viol ati ons are not well understood. The chlorine dosage to the effluent was steadily increased beginning in July 1987 in response to this problem. On several occasions the effluent nitrite increased, and in the 1 atter part of the year, the effl uent ammoni a-N decreased due to nitrification and probably reached a breakpoint chlorination level. It is bel ieved that the increased nitrite and breakpoint chlorination might have contributed to the occasional poor chlorine disinfection efficiency. Furthermore, it should be noted that in July 1987 the District altered its coliform sampling procedure. Prior to July, the samples for coliform were collected from the predechlorinated effluent and transported to the laboratory before dechlorination and processing for col iform count. After July, the samples were collected from the same station. However, the samples were dechlorinated immediately upon collection. To obtain data for a schedul ed 1988 water recl amati on demonstati on proj ect, in late September the District operated the secondary system in the nitrification mode. The mean cell residence time was gradually increased and by early October, the final effluent ammonia dropped to 6.5 mg/l from the previous month's average of 10.5 mg/l. Due to nitrification, there was approximately a 40 percent drop in the final effluent alkalinity. Therefore, the pH buffering capacity of the effluent was weakened. Consequently, the normal chlorination followed by dechlorination with sulfur dioxide depressed the final effluent pH below 6.0 units on 16 occasions. The range of the violations was from 5.7 to 5.9 on daily grab samples. The District initiated a project to add sodium hydroxide Dischargers Report Page 2 February 2, 1988 immediately upstream of the chlorination in order to bring the effluent pH into compliance, and the system was in operation in early December. No violations have occurred since that time. Additionally, grab samples collected from the outfall near the poi nt of di scharge into Sui sun Bay show that the effl uent pH was approximately 0.2 to 0.3 units higher than the normal sampling stations and that the 24-hour composite sampl e was above permit limits. This pH increase might be associated with removal of carbon dioxide from the effluent in transit in the outfall, which is approximately 3.5 miles away from the normal sampling station. Therefore, it appears that the pH of the effl uent at the discharge point was probably in compliance with the minimum standard of 6.0. In September the District started testing effluent toxicity using two-specie flow-through bioassays. The species used were stickleback and fathead minnows. The test results are presented in Tables 2 and 5 and show no toxicity. The District has carried out the Regional Water Quality Control Board's special quarterly exploratory monitoring program on selected organic and metallic poll utants. The resul ts of the 1 ast four quarterl y sampl es are presented in Tables 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 my knowledge, the information contained herein is true and correct. ~< J)k~t~(J irector of Laboratory ~ pART I -. ANNUAl WASTE. atARACTERISTICS AND LOADING Requirement Compliance Summary, Effluent - Table 1.~....................... Annual Average Waste Characteristics and loading Summary, Effluent - Table 2 Annual Average Waste Characteristics and loading Summary, Inf1uent- Waste (A-DOl) - Table 3 Figure 1 - Monthly Average - Influent Flow MGD.............................. 4 Figure 2 - Influent Total Suspended Solids and BOO loadings................. 5 Figure 3 - Influent Oil and Grease loading.................................. 6 Figure 4 - Final Effluent Suspended Solids Concentration and Mass Emission.. 7 Figure 5 - Final Effluent Biochemical Oxygen Demand Concentration and Mass Emission......... 8 Figure 6 - Final Effluent Oil and Grease Concentration and Mass Emission.... 9 Figure 7 - Total Suspended Solids and BOD Removal Efficiency................ 10 Figure 8 - Final Effluent Total Coliform MAN/IOO ml......................... 11 Figure 9 - Final Effluent pH................................................ 12 Final Effluent Fish Toxicity - 96-Hour Bioassay Results - Table 4........... Figure 10 - Final Effluent Fish Toxicity.................................... Annual Average Waste Characteristics and Loading Summary, Effluent Nutrients - Table 5.... Figure 11 - Final Effluent Ammonia and Nitrate-Nitrogen Concentration....... Figure 12 - Final Effluent Organic Nitrogen, Nitrite Nitrogen, and Total Phosphorus COncentration......~... Annual Average Waste Characteristics and loading Summary, Effluent - Heavy Metals - Table 6 Annual Average Waste Characteristics and Loading Summary, Effluent - Heavy Metals - Table 7A & Table 7B... Final Effluent Suspended Solids, Monthly Maximum, Minimum, and Average - Table 8........... Final Effluent BOD, Monthly Maximum, Minimum, and Average - Table 9........................ Final Effluent Oil and Grease, Monthly Maximum, Minimum, and Average - . Table 10............ Final Effluent pH, Monthly Maximum, Minimum, and Average - Table 11....~..... 24 .. paQe No. 1 2 3 13 14 15 16 17 18 19-20 21 22 23 INDEX PART I - ANtIJAL WASlE aiARACTERISTICS AND lOADIJ<<; (Continued) Page No. Final Effluent Settleable Matter. Monthly Maximum. Minimum. and Average - Table 12.......... 25 Final Effluent Total Coliform. Monthly Maximum. Minimum. and Average - Tab 1 e 13.......... 26 Final Effluent Organic Nitrogen. Monthly Maximum. Minimum. and Average - Table 14.......... Final Effluent Ammonia Nitrogen. Monthly Maximum. Minimum. and Average - Table 15.......... Final Effluent Nitrate Nitrogen. Monthly Maximum. Minimum. and Average - Table 16.......... Final Effluent Nitrite Nitrogen. Monthly Maximum. Minimum. and Average - Table 17.......... 27 28 29 30 Final Effluent Total Phosphorus. Monthly Maximum. Minimum. and Average - Table 18.......... 31 Solids Handling Summary - Table 19........................................... 32 PART II - RECEIVIJ<<; WATER aiARACTERISTICS Requirement Compliance Summary - Table 20.................................... 33 Un-ionized Ammonia Nitrogen. mg/l. Monthly Maximum. Minimum, and Average - Table 21................ 34 Figure 13 - Un-ionized Ammonia Nitrogen. mg/l, Monthly Average............... 35 pH. Monthly Maximum, Minimum, and Average - Table 22......................... 36 Figure 14 - pH, Monthly Average.............................................. 37 Dissolved Oxygen, Monthly Maximum. Minimum. and Average - Table 23........... 38 Figure 15 - Dissolved Oxygen. Monthly Average - Saturation................... 39 Figure 16 - Dfssolved Oxygen. Monthly Average - Concentration................ 40 Total Coliform, MPN/100 ml, Monthly Maximum, Minimum. and Average - Table 24 41 Figure 17 - Total Coliform. MPN/100 ml, Monthly Average...................... 42 Receiving Water Color - Table 25............................................. 43 Figure 18 - Receiving Water Color............................................ 44 Turbidity - Table 26......................................................... 45 Figure 19 - Turbidity........................................................... 46 Quarterly Monitoring Program on Selected Organic and Metallic Pollutants - (Six Pages) - Tables 27 - 32........... 47 - 52 ~ Figure 20 - Aerial Photograph. Receiving Water Station....................... 5~ :...J o ~ ;:) E rj H rJ ~ .J.J ...-l c: .~ ..... :J~n... ;Fe;:, _ :t.iar.. ~~\!Jr- ;,.jv.y ;Jun _ iJu1- 'Aug. :5ep. :'JcL ;l~O'/' . :D=c. l , :Tj:"ot _ I I ! i I I I <:I ,...~ (\ "nj (!J :~ rl Cl ~~ +J~ (!J m [/):4 . . .r:: H "- .x:: rl "- "- rl rl "- E .--I E N o. ("') rl I - ~ II t1 ~ >. rj rj O'tl :4 0) ::J (!J 0 () :> Cl -r{ -r{ c:: ~~ rj () ::J ~ f:() ~ .r:: CJ I m ~ t1' ~.J -r! ~ 0) ~ 8. ti O. . . "w 1 =1" j~.lin. I ~ . o o MO ("') I 0) ~ >. m m (!J'tj :<:. C!J 0'> -rl .r! ~+J (i) ~ .Eg .+J tll ...rc:: !(8 x r.j ::E: o o ...._..,._JIO~..-........'-'...~,_...-._ ;';~-.. _,....,_.. _ '_:.0 "-~"'~"''''''~''''''''-''I''.-''''''''''~"" :'-.__.......-....,..,...,h:.._:_.__ ~--':""._'-"""'_'~:"'::h~"~~~..:;""-." TADLE 1 CENTRAL CONT~\ COSTA SANITARY DISTRICT WATER POLLUTION CONTROL DIVISION REQ~IREMENT CO~PLIANCE SUMMARY Final Effluent (E-OOI-S) o o ~ .-:c "- tJl E r- to "" I 0) ~ :>.. rj c;S Q)<O ~ (J) o > ...r -r! +J.J.J ~ fi I oCC!J +J 0) ...rJ: !(8 o r-l "- tJl E Of' . to co 0) :>.. I ro -0 r-C m C!J :> > o .r! E+J o ::J e:: u (!) ~ 0) J: J: o 0 Ou .... cae p'M \'lASTE EFFLUENT -0 Q) -0 ~ 0) CJOU P. .r! 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I- U <{ -. c::l <:( <:( :::> u 0 w Z> <:( UJ n.. :::> :J UJ 0.. ~ <:( ::: -, , <:( U) 0 Z 0 <:(<:( -, u. I a> .... o CD CD .... a: <:( uJ >- -'--~-' ....... ... ..... -_._-_\.~- .-, -- . __ .;..:~. _':;......~.....).':t:::.;~..:-"-~...... ______..__._ _~ Page 21 of 53 CENTRAL CONTRA COSTA SANITARY DISTRICT TABLE 8 ~ TOTAL SUSPENOE 0 SOL I OS <Il c: CONCENTRATION lOAD ING '+-~ .;= '+- ~ 0.-- 0 <0 mg/ I kg/day g .- " ~ 0 0 or- MONTH MAXIMUM MINIMUM AVERAGE MAXIMUM MINIMUM AVERAGE ZV: z: > -- J~NUARY 19 2 10 29 1 5 298 1488 3 1 0 FEBRUARY 21 4 10 3328 724 1677 28 0 MARCH 16 3 8 2404 452 121 2 3 1 0 I APRIL 24 3 12 , 3532 456 175 1 30 0 f.IAV 24 6 12 3288 870 1 585 3 1 0 JUNE 13 4 8 1839 556 1092 30 0 ! I .IU L Y 19 3 10 2590 401 1336 3 1 0 AUGUST 23 3 8 3078 405 1 144 3 1 0 SEPTEMBER 1 5 4 7 2083 534 1 099 30 0 OCTOBER 16 4 1 0 2185 628 1341 3 1 0 NOVEMBER 42 2 / 1 7 6325 285 2498 30 0 DECEMBER 48 6 22 7068 872 3385 31 0 II~. '~~llll~ll~1l~lllllj~lj jj~~~1l~Jlll~1l~~1jt~iliijij~l~~~ TOTAL ANNUAL 48 7068 NUMBER OF .....~..........................,....'"....... MAXIMUM tJ~~~~~~~ff~~I~~f~~~f:~;~~~~~ ~:~:~;~:;:~:~:~~:~:~~:~:~:~:~:;:~:~~:~~:~: SAMPLES . .......~<<.... ........ ............<.................. ,............................................. ................,...... ::.~:...z.:.. ;,f.~' .':':-:': .:.:.:.:.~:.:.:.:...:.x.:.:.:.:.:.:.,.-:.:.: ....................... ..... ......... .... ... . . '11'298, . ...................... ANNUAL . MINIMUM 2 365 0 . r~ .... ..... . . ...~..... ... ... ANNUAL Ill. AVERAGE ~~~L .~i~t;:~~; 1. 1 1626 :-'i$.;/'),hV. ...~.... . 6034- 1 .7" ANNUAL WASTE CHARACTERISTIC AND LOADING SUMMARY Final Effluent (E-001-S) YEAR 1987 24-Hour Composite PARAMETER ~ . ". ,- - .'~:;- .' -~".' . --. . . . .' ._.- -_. ..~ ._- --._-. '. - _.~_._.-- -,,-,:' ----:---- -.... -....--.-- Page 22 of 53 CENTRAL CONTRA COSTA SANITARY DISTRICT TABLE 9 ANNUAL WASTE CHARACTERISTIC AND LOADING SUMMARY Final Effluent (E-001-5) YEAR 1987 24-Hour Composite BIOCHEMICAL OXYGEN DEMAND CONCENTRATION LOADING mg/l kg/day MAXIMUM MINIMUM AVERAGE MAXIMUM MINIMUM AVERAGE 19 2 6 2718 298 935 17 3 7 2524 454 1203 11 2 6 1682 309 916 22 5 10 3154 740 1445 VI C o 4-~4-:; Oc; O~ . E . 0 o.ii:j 0 or- ZV) z> 31 0 28 0 31 0 30 0 16 5 9 2277 726 1199 31 0 4 6 1142 534 805 30 0 , I 4 6 1363 535 789 31 0 5 9 3274 665 1152 31 0 3 6 1133 409 762 30 0 4 8 2171 550 1024 31 0 2 7 1850 285 1021 30 0 2 7 2026 273 1008 31 0 8 10 24 8 16 12 12 24 .. ::~:~::::t:::tt~ttt:tt ::gitHhff:ttti:~:: TOTAL :t~@lfrIIIr:t mWt~t1lHt1tl NUMBER OF ....................... ....................... ............................................................................................. :~~ttttttt:~~ttt ~~tt~tt~ttttt:t SAMPLES ....................... ....... ........ .. 3274 .; .lit 273 . . . . . . . . . . . . . - , . . . . . . . . t~rrt~tt~#:~~tttr :lllllll~l:ll!ll~~~llllll:lll!l~lll!ll~:ll~~ ~ 6 5 0 2 III. .. 944 6034 1-76 7 _._,-- --~-:-...-~--_...- --....--.-.-.---,.. ....--~_.*-.-... Page 23 of 53 CENTRAL CONTRA COSTA SANITARY DISTRICT PARAMETER 0 I L AND GREAS E V1 c LOAD ING u CONCENTRA nON V1 or- 4- OJ 4- ..... 0 Q 0 It) mg / 1 kg/day .- 0 E 0 0 0 It) 0 or- MONTH MAXIMUM MINIMUM AVERAGE MAX IMUM MINIMUM AVERAGE z: U) z: :> JANUARY 2 . 1 0 . 2 0 8 323 . 9 28 . 9 1 20 . 4 4 0 FEBRUARY 1 0 4 0 . 2 0 . 8 218 . 3 3 1 . 1 1 27 . 7 4 0 MARCH 1 . 7 0 . 1 0 . 6 265 . 8 1 5 . 4 97 . 9 4 0 APRIL 3 . 3 1 . 0 1 . 5 464 . 5 142 . 1 208 5 5 0 . MAY 1 0 0 4 0 7 133 3 54 9 96 9 4 0 . . . . . . : JlINE 2 6 0 9 1 8 378 9 120 1 251 4 4 0 . . . . . . I I JlIL Y 9 5 0 3 2 5 1308 3 41 5 344 4 5 0 . . . . . . AUGUST 1 . 2 0 . 5 0 . 9 160 . 2 66 . 9 1 16 . 9 4 0 SEPTEMBER 1 . 0 0 . 4 0 . 8 139 . 5 54 . 5 105 . 9 5 0 OCTOSER 0 . 7 0 . 1 0 . 4 94 . 3 1 5 7 6 1 0 4 0 I . . I NOVEMBER 1 . 4 0 . 5 0 . 9 145 . 4 71 . 2 108 . 4 4 0 OECEM~ER 0 . 5 0 . 5 0 . 5 96 . 0 73 . 0 81 . 1 5 0 . . . . .. . . .. . . .,. :::::::;~::::::~:::::::::~;:;:::;::~:~::: TOTAL ANNUAL :~ffi~~I~~~1~~I~~~I~1~~~I~~~1~~~~ .:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:~:.:.:.:.:.: 9 5 1308 3 :::::::::::::::::3:::::::::::~:::::~:::~:: NUMBER OF . ...........~~~... .......... ..... .~.'.~..~'.'.' :::::::::::::::::::::::::::::::::::::::::::::: MAXIMUM . ::::::::~:;:::::::;::::::::::::::::::;::::::;: :.:.:.~.:.:.:.:~:.:.:-;.:.;~:.:.:.:.:.:.:.:.:~ ~..."'.'.'~' ..... .... ..~~.........~........~. .. ....... .... . .... ~. ~. . .............~.~~.......~..................... SAMPLES .........~................~................... ;.:.:-:.:.:.:.:.:.:.;.:.;.:.;.:.:.:.:.:.:.:.;. .:.:.:.:.:.:.:.;.:.:.:.;.;.:.;.:.:.:.:.:.:.:.:. ....................... ..... '~""'-' .......... .. ..~...... ............ .............. .... . . :~tii;~~~~f;~*~~~f:~;~~t~t . . . . . . . . . . - . . - . . . ' . .. ... ...... ... ...... ... ANNUAL ~:~:~:~:~:~;~:~;~:~;~:~:~:~:~:f~~~:~:~~:~: ~.~....~............~.v.................... . .:::::::::::~:~::::::::::::::::::::::::::::: 0 1 ....... ~............... 15 7 ::::.:::->.:;:::::::::::;:~~:::;::::::~::::: ~~~~~t;~~~;~~~~~~~~rt~;~~~;~~~~t 52 0 MINIMUM . :::::;;:;:::::::::::::::~:~::::::::*:::;. . .............................................. ::~:;:;:~:~:~:~:~~:~:~:~:{i:~:~;~:~:f~: :.:.:.:.:.:.:.:.:.:.,.:.:.:.;.:.:.:.:.:.;.:.:. ....................... .............................................. ....................... ........... ......... ..... ...... ........... ANNUAL i~t~~ Ii . . ~~~~~t:~t~~~~~tt~~tt~~:t~ . ........................'..................... :v:-:-:-:.: 1 . 0 ~;~:~:~:~:~:~~;~:;:~:~:~:~:~:~:~~{:~:~:~: 143 4 AVERAGE ............. ;~~~~~~~l~~~~~~~~~~~lm~~~f~~m~~~~\ . ...........-. .:.:.:.:.:.:. ............... . .................... 6034 1 7ft TABLE 10 ANNUAL WASTE CHARACTERISTIC AND LOADING SUMMARY Final Effluent (E-001-S) YEAR 1987 GRAB .~ .....~_.. ,~'~-_.._.." _ _- _ _ ____.1_.___ .~'\:~. -- .. .~- --..... -_.__..._-~....... ....~_... ".....--------.- Page 24 of 53 CENTRAL CONTRA COSTA SANITARY DISTRICT TABLE 11 ANNUAL WASTE CHARACTERISTIC AND LOADING SUMMARY Final effluent (E-001-~ YEAR Grab 1987 PARAMETER P H ~ C ON C E N TR AT I ON ~~ or- ~ +> O'C 0 -to U N I T S r- o~ 0 0 0 "r- MONTH MAXIMUM MIN IMUM AVERAGE MAX IMUM MIN IMUM AVERAGE z: (/) z: >- JA NU ARY 6 . 8 6 6 6 7 3 1 0 . . F EBRU ARY 6 . 8 6 . 4 6 . 6 28 0 11.1 A RCH 6 9 6 5 6 6 3 1 0 . . . I .0. PR I L 6 8 6 0 6 6 , 3 0 0 . . . - . M AY 6 8 6 5 6 6 3 1 0 . . . . . .11 INE 6 . 7 6 . 2 6 . 5 3 0 0 . I I .11 I LV 6 7 6 0 6 5 3 1 . . . 0 AUGUST 6 6 6 3 6 4 3 1 0 . . . SEPTEMBER 6 . 4 6 . 1 6 . 3 3 0 0 OCTOBER 6 . 4 5 . 7 6 . 0 3 1 1 3 NOVEMBER 6 . 6 5 . 8 6 . 1 3 0 3 I DECEMBER 6 . 6 6 . 0 6 . 3 3 1 0 I ANNUAL . . :ji~~ir~~~[!~j~i~ii~~i~ij~ij~; . TOTAL NUMBER OF r.' A X I MUM 6 9 ....................... ....................... . ............................................... ........................................:-..... SAMPLES ....................... ':::::::::::::::::::::::::::::::::::::::::::::: .... ................... . ~:~:~:~:}~:~{:~:~~:~~~:~~:~:~~:~:~ . ........ ..."....... ANNUAL ~:;:;tt~:;:~:;:~~*~:~~~~~:~: . -...................... 11.1 I N IMUM 5 7 ':.:.:':':':.:':':':':.:.1.:.:.:.:.:.:.:,.:.:.' 36 5 1 6 ;.:.:.;.;.;.;.:.;.;.:.:.:-:.:-:.;.:.:.:-;.:.: . ...................... ....................... ....................... ....................... ....................... ....................... .............................................. ....................... . _1 .::::::~~::::::::::::::::::::::::;:::~:::::: . ANNUAL :::::::::::::::;::::;::::::::::::::::::::::::: 6 4 ~;~J*~~~~~i~~*~~~t~I~~~~~~~~ AVERAGE . :::::::::::::::::::::::~:::::::::::::::::::::: ............................................... :.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:-:.:.:.;.:.:. 6034 1 7.. ....................... ....................... ... ....... .......... -.--. ..,-- .... -. '-"._..,.' ._.__ ...~'~:.-.__~ _. _.~..._ ... __L.. _ -_n___._ .._.... ..'_. ,-__. ~....._. .-....----:-------.-------.---..---.--- Page 25 of 53 CENTRAL CONTRA COSTA SANITARY DISTRICT PARAMETER V1 S ETT L EAB L E MATTE R ~ C ON EN TRA I 0 N LO AD I N G V1 ",... C T 4- <lJ 4- +-' 0 ';; 0 n:' 1 / 1 /hou .- m r E 0 0 co 0 ",... MAX IMUM Ml N IMUM AVERAGE MAX IMUM MIN IMUM A VERAG E z: (/) z: :> MONTH .I A NU ARY <. 0 . 1 < 0 1 < 0 1 3 1 0 F EBRU ARY <. 0 . 1 < 0 . 1 < 0 . 1 28 0 MA RC H < 0 . 1 C(O . 1 < 0 . 1 3 1 0 A PR I L ~O . 1 <0 . 1 <: 0 . 1 3 0 0 M A Y < 0 . 1 <0 . 1 <0 . 1 3 1 0 . .Il IN E .(0 1 <0 1 <0 1 . . . 3 0 0 , I . .11 J LV (0 1 <0 1 <0 1 . . . 3 1 0 ALlGl /ST <0 1 <.0 1 <0 1 3 1 0 . . . SEPTEMBER <0 . 1 <0 . 1 <0 . 1 3 0 0 OCTOBER <0 . 1 (0 . 1 (0 . 1 3 1 0 N OVEMBER (0 . 1 (0 . 1 <0 . 1 3 0 0 DEC EMBER (0 . 1 (0 . 1 <0 . 1 3 1 0 . . . .-.. . ................... .. . . ....................... TOTAL ::::::~::::::::::::::::~~::::::::::::::::;; ANNUAL <0 1 ~ji[i[i~iji~~jIIi~IjijIii1~~j~1l NUMBER OF M AX (MUM . .........,.................................... SAMPLES .............................................. ....................... .............................................. .. ..... ....... .... ... 11I1 :j~~~i~ilii~~j!i!1fi~l1~iii~1~t . ............. ...... ::~~:::::::;:::::;:;::::::;:::;::::::::::::: ANNU AL (0 1 :~~~~~~t~~t~@~~*~;~~~~j~j~ff:j ...................... 36 5 0 11.1 IN/MUM . .............................................. .:::::::;:::::;:=::::::::::=:=:::=:::::::::::; :.:.:.:.;.;.:.:.:.;.:.:.:.:.:.:.:.:.:.:-:.:.: :~~tt~)~~~t~~~t~~~~~~~t .;:::::::;:;:;:;::;;:::;:;:;:::::;:::::::::::: ............................................. ANNU AL -, . <0 1 . . AVERAGE . 6034 1 7fi TABLE 12 ANNUAL WASTE CHARACTERISTIC AND LOADING SUMMARY Final Effluent (E-OOI-S) YEAR 1987 Grab " _._~--~~-,~_..,-,_."_.------,-_.~._~-_._--_.__.-----~--_.._--~,-------._,~-_.,~--_._"'~-~.,._"'_._...__...."..,......_.._-"..'"~--_.~-_..~...._---,-_._--~~,._---~ .---....- --- ....._--~-_..:..__..:.::::.: -,....-:'",.. ." ----.-.-.-------.----... _.~-_.~-_.._._..,--.._- .--.- Page 26 of 53 ---- -~ -"-...-- ..-.-.......,-.- _. ....-. --_. . PARAMETER MONTH JANUARY FEBRUARY MARCH APRIL r,'AY . .llINE .II JL Y AUGUST SEPTEMBER OCTOBER NOVEMBER DECEMBER ANNUAL r,'AXIMUM ANNUAL MINIMUM ANNUAL AVERAGE CENTRAL CONTRA COSTA SANITARY DISTRICT TABLE f 3 ANNUAL WASTE CHARACTERISTIC AND LOADING SUMMARY Final Effluent (E-001-S) YEAR Grab TOTAL COLIFORM 1987 FIVE-DAY MEDIAN SINGLE SAMPL~ MPN/IOO ml MPN/100 ml MAXIMUM MINIMUM AVERAGE MAXIMUM MINIMUM AVERAGE V1 4-QJ Or- .~ OIU Z V) ~ .~ i;~ r- C;;.;: z> 78 <\20 <34 1300 < 20 310 <20 <66 330 <20 20 <20 <20 130 <20 20 <20 78 <20 . 490 (20 3500 (20 1700 20 790 (20 . 790 <20 330 46 790 (18 230 (18 <20 140 20 99 220 45 119 490 110 195 330 <20 <87 230 20 153 330 45 149 170 <.20 <.64 130 <18 (31 <160 23 0 < 54 20 2 ~30 22 0 < 23 22 o <164 22 0 <283 23 0 I 305 26 2 (132 ",., 2 ~.) <183 27 0 145 23 1 <106 22 0 <40 23 0 490 ;~~m:t:ttt~t:~::::{t :::t~~ttt~~tttlt TOT AL .............................................. ..............-...............~.............. :~~~~~ttfttt::::~::::=t: :ft~~~:~:tMt~tt:::: NUMBER OF ....................'.. ...................... Iftf~~1~~ftfft:::J~t1ttl1ttrt SA MPL ES .. 3500 <18 .. ................... . <18 .. .. G7 ....................... ....................... ....................... ....................... ....................... ....................... ....................... ....................... .;.;.:.;.;.:.:.:.:.:.:.;.:.:.:.:.:.:.;.x.:.; ...................... ....................... ....................... :tmrr~tttJIt~t 276 ....................... ....................... ....................... ...................... ...................... 8 - <134 6034 1 76 ." --- _. -~ -l- .- - -_._ .__ .._~-.__. ._~__-__.- u. .~_...-..._.. -.,. . '--"'--- -.-.--.------.-.----.-- . Page 27 of 53 CENTRAL CONTRA COSTA SANITARY DISTRICT PARAMETER 0 R GAN I C N V1 c:: C ON C ENTR AT I ON LOA D I N G Vl .~ 4- 0) 4- -4J 0 g 0 co / 1 kg /d ~ mg a y 0 0 co 0 .~ MAXIMUM MI N IMUM AVERAGE MAX IMUM MI N IMUM AVERAGE z V') z :> MONTH JA NU ARY 4 . 4 2 . 8 3 . 3 6 1 0 . 1 42 7 . 1 48 5 . 0 9 0 FEBRU ARY 3 . 8 2 . 6 3 . 3 582 . 4 463 . 5 53 2 . 0 8 0 MARCH 3 . 6 2 . 2 2 . 6 53 1 . 9 344 . 5 4 1 3 . 3 9 0 A PR I L 3 9 3 0 3 4 .. . . . 5 58. 3 43 7 6 493 2 1 0 0 . . ;"1 AY 4 1 2 8 3 2 56 1 7 383 . 3 43 5 . 1 8 0 . . . . : .11 IN E 3 1 2 0 2 6 4 58 0 282 . 0 3 76 5 9 0 . . . . . , I . I .11 ILY 2 9 1 9 2 5 3 9 5 .3 259 0 3 38 4 9 0 . . . . . A lIGlIST 3 2 2 2 2 6 433 . ~ 29 5 .4 3 5 1 6 8 0 . . . . SEPTEMBER 3 . 0 1 . 0 2 . 3 408 . 9 1 39 . 5 3 06 . 5 9 0 OCTOBER 3 . 0 2 . 4 2 . 7 4 01 . 8 3 2 1 . 4 36 1 . 4 9 0 NOVEMBER 4 . 0 1 . 4 2 . 4 564 . 1 200 . 2 344 . 2 8 0 i I DECEMBER 3 . 8 0 . 7 2 . 4 733 .E 1 05 . 0 383 . 3 1 0 0 . .. ...... . ::::::::::::::~:::::::::::::::::::::::::::::: . . ........................ TOTAL ~j~~[~[~!j~j!j~ffjjj~~~~~j~!j~~!j~ .:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.;.:.:.:.: ANNUAL 4 4 733 8 ~;~;~;~;~;~~~~~~;;~;;;~;~;~~~;~~~r~~t NUMBER OF . . :~~~;~~~~~~r~~r~~~~~~~fi~tJ~~~ :;:::::;:::;:;:::;:;:;:;:::::::::::::::::;:;:; M A X IMUM .............................................. SAMPLES ............................................... .............................................. ....................... .............................................. ....................... ....................... ... ................... ....... ....... ..... ... ~ljil~~iji:~~!i11!11~[jlj~ll~11t &3 ........-..... ,-.,.. . .............................................. .:.:.:.:.:.;.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.: .............................................. ANNUAL ...................... ............................................. Of 0 7 1 05 0 .~:~:;:;:~:~:~:~:~:~;~}:~:~:~:~~:~:~:~:~;~ 1 0 . . ....................... M lNIMUM ....................... :.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.: ~~~@~t~~IIl~~~~~~~~~I~~~~~E~~; .............................................. :.:.:.:.:.:.:.:.:.:.:.;.:.:.:.:.:.:.:.:.:.:.:. ....................... .............................................. ANNUAL . . 2 8 . . 4 0 1 7 . . AVERAGE 6034 1 7Ft TABLE 14 ANNUAL WASTE CHARACTERISTIC AND LOADING SUMMARY Final Effluent (E-001-S) YEAR 1987 24-Hour Composite --_.~.. -_.....~_.._- - .-. . '''. ~. -. - -- -.... _.- - .------.------. --- -- .----.-- ._- -.-.- . - .... . Page 28 of 53 CENTRAL CONTRA COSTA SANITARY DISTRICT TABLE 15 PARAMETER Vl AMMO N I A- N c: C 0 N C E NTR A T I ON LO A D I N G Vl "'- 4- Q) 4- -l--' 0 ';; 0 <C / I kg /d r- mg a y . E 0 0 10 0 .'- MAXIMUM MI N IMUM AVERAGE MAX lMUM Ml N IMUM AVERAGE :z: V') z: >- MONTH JA NU ARV 1 7 . 4 1 2 4 1 5 . 0 2669 6 1 76 5 . 2 2 26 5 3 3 1 0 F EBRU ARY 20 . 4 7 . 2 1 5 . 1 3 74 0 .'6 1 1 2 2 . 5 2 5 20 . 2 28 0 MARCH 1 8 . 7 1 1 . 6 1 5 . 2 2898 . 3 1 9 51 . 8 243 7 0 3 1 0 . APRI L 20 . 2 1 5 . 6 1 8 . 0 2946 . 9 224 1 . 4 26 22 . 7 3 0 0 M AV 2 1 9 1 6 0 18 9 29 0 1 .E 2 1 7 7 . ~ 2 58 7 5 3 1 0 . . . .11 JNE 2 0 . 6 1 4 . 4 1 8 . 1 293 7 . 4 2 1 1 5 . 8 26 07 . 0 3 0 0 , I .11 J LV 1 7 8 1 1 6 1 5 8 24 7 0 7 1 6 20 4 2 18 2 .~ 3 1 0 . . . . . AUGUST 1 5 9 1 0 4 1 3 2 2 1 9 7 .2 1 43 1 1 1 78 2 8 3 1 0 . . . . . SEPTEMBER 1 2 . 0 8 . 0 1 0 . 5 1 6 73 . 9 1 09 2 8 14 25 . 5 3 0 0 OCTOBER 1 2 . 1 1 . 2 6 . 0 1 642 . 5 1 7 1 . 9 8 1 5 . 1 3 1 0 NOVEMBER 4 . 6 (0 . 1 <2 . 0 69 7 . 5 <1 4 . 2 (284 . 2 3 0 0 i I DEC EMBER 7 . 0 0 . 2 3 . 0 1 294 . 4 26 . 9 47 1 . 9 3 1 0 . ~~jl~j~ij~I~~jjl~IIIIIII~I!~~f~!ill~1: .. .......... ... .....-...... TOT AL ::~:::::;::::::::::::::::::::::::::::::::;:::: .:.;.:.:.:.:.:.:.:.:.:.:.:.:.:.:.;.:.:.;.;.:.: ....................... .............................................. .:.:.:.:.;.:.:.;.:.:.:.:.:.:.;.:.:.:.;.:.:.:.: ANNUAL ::::::~:::::::~::::;:;::::::::::::::~~::::: ....................... ....................... :.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:. NUMBER OF ............................................... ....................... 2 1 9 3 740 6 .::::::::::::~::::::::::::::::::::::::::::::;: :::::::::::::::::::;:::::::::::::::::~::::::: M AX IMUM ..:.:.:.:-:.:.:.:.:.;.;.:.:.:.:.:.;.:.:.:.:.:.; .............................................. . . ............................................-. .............................................. ....................... SAMPLES ....................... -...................... :::::::::::::::::::::::::::::::::::::::~::::: .................-..-.- .......................-....................... ....................... ....................... ....................... ....................... ............................................. ....................... ................... ... .1 ........-...................-........:.;.:.:. . .......- ......-'. . .:.:.:.:.;.;.:.:.:.;.:.:.:.:.;.;.;.:.;.;.:.:.: ::::;;:::::::::::::::~~:~::::;::::::::::: ...................... ....................... .............................................. ANNUAL ...................... :;:;:::;:::::::::::::;:::::::::;::::::;;~:::: .................-............................ <0 :::::::::::::::;:;:::::::::::::::::::::-;:::: <14 .;.;.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.: 1 ....................... 2 ....................... 36 5 0 MUM .:.;.:.:.:.:.:.:.:.:.:.:-:.:.:.:.:.:.:-:.:.,.. .............................................. 1\1 I N I .........-............. .............................................. ..h.................. . . .......-............... ;::;::::::;:::::::::;:::::::::;::::::::;:;:;:; ....................... ....................... ....................... .-............................................ :::::::::;::;::::::::::::::::::::.;:::::::::::: .............................................. .........."............................... ...... ...... .......-.. ANNU AL . lIfl . .1 <183 AVERAGE 1 2 . 6 3 . 5 6034 1 7ft ANNUAL WASTE CHARACTERISTIC AND LOADING SUMMARY Final Effluent (E-OOI-~ YEAR 1987 24-Hour Composite ... ---._~.-- ..;:--......... ...- .~~ Page 29 of 53 CENTRAL CONTRA COSTA SANITARY DISTRICT TABLE 16 ~ tJ I TR I T E - N VI c C 0 N C EN TRAT I 0 N LO A D I N G ~ .~ 4- 4- ...., 0 ~ 0 ro mg / 1 kg /d a y .-- . --0 0 0 ro 0 or- MONTH MAX (MUM MI N IMUM AVERAGE MAX IMUM MIN (MUM AVERAGE z: (/) z: >- JA NU ARY 3 . 5 0 . 2 1 . 2 508 . 9 2 7 . 7 1 7 1 . 7 9 0 F EBRU ARY 0 . 4 0 . 2 0 . 3 59 . 9 3 0 . 2 4 2 . 6 8 0 11.1 ARCH 2 . 0 0 . 1 0 . 6 3 29 . 8 1 5 . 9 1 03 . 7 9 0 A PRI L 0 7 0 2 0 5 , 1 01 2 29 2 7 1 3 9 0 . . . . . . . M AY 1 6 0 1 0 8 2 1 6 8 1 4 3 1 1 4 4 8 0 . . . . . . . JUNE 1 . 5 0 . 7 0 . 9 2 1 4 . 2 98 . 7 1 34 . 7 9 0 , I I .11 JLY 1 8 0 6 1 1 2 5 1 3 83 8 1 53 3 9 0 . . . . . . AUGUST 2 . 9 0 . 7 1 . 7 3 93 . 9 94 . 0 2 26 . 4 9 0 SEPTEMBER 1 . 9 1 . 1 1 . 6 2 59 . 0 1 53 . 4 2 1 0 . 4 9 0 OCTOBER 1 . 8 0 . 1 1 . 0 239 . 4 1 3 . 8 1 28 . 9 9 0 NOVEMBER 0 4 <0 1 (a 2 56 4 < 1 4 0 (.3 2 2 8 0 . . . . . DECEMBER 0 . 7 (a . 1 (0 . 2 1 28 . 1 1 3 . 9 (3 5 . 4 1 0 0 . . ':<:::::::::i-::~::::::::::::::i-::'$.:::::::: :::;::~~::::~;:::::::::::::::.:::::::::::::: TOT AL :-:.:.:-:.:-:.:.:.:.:.;.:.:.:.:.:.:.:.:.:.:.:.: .............................................. ANNUAL ;~~~~~~;;~~~~~~~~~~~~~~*~;~~~;~;t~: ....................... 3 5 508 9 n~~~~~~~~wn~~~~~;~~~t~~;~~~;~ NUMBER OF M AXIMUM . . ~:::~:::::;::~!:::~::::::::::::::::::::::: ::::::::~:::::::::~:::::::~::::::~:::::::: ....................... SAMPLES ....................... .:.:.:.:.:.:.:.:...:.:.:.;.:.:.:.:.:.:-;.:.:.:.:. :.:.:.:.:.:.:.:.:.:.:.:.:.;.:.;.:.:.:.:.:.:.:. ...........................................0... ....................... ....................... ... ................... .... .... .... ... ... . . ::::::::::~::;:::::::::~~:~:~::::~~:~: . ..... ....... ..... ....................... .............................................. ................0........0.0...............0.. ANNU AL ~~~~~~~~~~I~~~~~~~~~~!~~~~~~~~. :.:.:.:.:.;.:.;.:.:.:.:.:.:-:.:.:.;.:.:.:.:.:. <.0 :~;;:~~:~:~:~:~:;:~:~:~~;:;:~;:~:~:~:~:~ 1 1 3 8 ...................... 1 06 0 11.1 INI MUM . . .............................................. ............................................. ~~~ttr~i~~~m;~~~f~;~;~~~;~;~~~ ....................... .............................................. ...................... ....................... ....................... ..........0.................................. ............ .......... ANNU AL .1 . (0 8 . . <1 AVERAGE . 18 . 8 6034 t 7ft ANNUAL WASTE CHARACTERISTIC AND LOADING SUMMARY Final Effluent (E-001-5) YEAR 1987 24-Hour Composite - -..-...--::.'"::"'".-....,. .----. ~-- ,-~.- ..-..;.; .~-~.;..;...:---~..-~-----~- Page 30 of 53 CENTRAL CONTRA COSTA SANITARY DISTRICT - 0 u r om po 5 I t e PARAMETER N I T RAT E N (/) - c u C ON C EN TRA T I 0 N lO A D I N G (/) .'- 4- QJ 4- +J 0 ~ 0 <1j / 1 kg/d ay r- mg . 0 0 <1j 0 0,- MONTH MAX IMUM Ml N IMUM AVERAGE MAX IMUM MIN IMUM AVERAG E :z: Vl :z: > .J ;. NU ARY 7 . 2 4 . 0 5 6 1 0 50 . ~ 57 0 7 83 7 1 9 0 . . . - F EBRU ARY 4 . 0 1 . 8 2 . 9 6 2 2 . i 27 1 . 5 4 7 2 . 6 8 0 M A RCH 4 . 5 0 . 3 2 . 4 7 2 7 . 1 44 3 388 3 9 0 . . A PR I L 2 0 0 4 1 1 , 269 6 58 8 1 59 2 9 0 . . . . . . M AV 3 2 0 1 0 9 422 5 1 4 3 1 1 6 7 8 0 . . . . . . . .11 JNE 4 8 0 . 1 2 5 6 79 2 1 5 2 347 3 9 0 . . . . . . I .11 ILY 3 0 0 8 2 1 4 1 2 1 1 03 4 28 1 1 9 0 . . . . . . AUGUST 5 . 5 1 . 8 3 . 3 74 5 . ~ 244 5 449 0 7 0 . . . SEPTEMBER 1 0 . 4 1 6 4 . 4 1 38 1 . 5 22 2 . 5 59 1 . 0 9 0 OCTOBER 7 . 4 2 . 3 4 . 2 1 0 1 9 . 5 284 . 8 56 7 . 4 9 0 NOVEMBER 1 9 . 2 1 0 . ::> 14 . 2 27 07 . 6 1 50 1 . 8 2058 . 0 8 0 DECEMBER 14 . 5 6 . 1 1 1 . 3 234 5 . 0 1 1 78 . 6 1 74 1 . 3 1 0 0 . . ........ ... ... ................ TOTAL [~~~~~~~~~~~~~~~j~jij~~~~~j~~1~~ji~~~j ....................... ;::::::::::~:~;:;:;:;:;:::;:::::::::;:~::::: .;,.:.:.:.:.:.:.;.:.;.;.:.:.:.:.;.;.;.;.:.;.:. ....................... ....................... .............................................. ANNUAL ....................... .~~~~~::::~:;;::;:::::::::::::::;:::::: .:[:~~~~~~~~::j:j~~~~:::~~::~:1j:~:1~j:~:~:[: NUMBER OF 1 9 2 2707 6 ..;.:.:..;.:.:.:-:.:.:.:.:.:.:.:.:.:.:.:.;.:.;.: ....................... . .............................................. . ............................................... M A X IMUM ...................-... :~:~:~:~:;:~:~:~:~:~:~:~~:~:~:~:~:~:~:~t:~ ....................... ........................ .............................................. SAMPLES ....................... ............................................. ........................ ....................... :.:.:.:.:.:.:.;.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:. ....................... ........................ .............................................. ....................-.. ....................... .... ................... ................... ... . :;:::::::::~:: :::;::::~~:::~::;:::::~::;: 111 ....... ..... ...... ANNUAL ............................................. }~~~~~~~~?t~~~~~~~~~~~~~~~~~~?;~~~ .:.:.:.:.:.:.:.:.:.:.:.:.:.;:.:~.:.:.:-:.:. :::::::::::::;:::::::::::::::::::::::::::::::: M IN MUM 0 . 1 ~~~~~~~~~t~~~;~~;;~~~~~~~~~~~~;~~~;;. 14 3 :~:;:;:~:~:~:~:~:~:~:~:~~:?~t:f~:j:~ 1 04 0 I ......................................."..... . ~:~:~:t:~:~:~:i~:~t:~:~:~:~:::~:~:~:~: ;.:.:.:.:.;.;.;.:.:.:.:.:.:.:.;.;.:.:.:.:.:.:. ::;:;:;:;:;:;:::::::::::;:::::::::::'::i-:::::: ....................... .:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.;.:.;.:.:.:.. ...................... ....................... ANNUAL .1 . 4 6 . II,~ AVERAGE . 66 7 . 4 6034 1 7fi TABLE 17 ANNUAL WASTE CHARACTERISTIC AND lOADING SUMMARY Final Effluent (E-001-S) YEAR 24 H C 1987 ~ -_.-_.~-"'.._.~,_...._-~----''"- ,-~----~---"....~---_._--,_,._,.'_..__.__.._________~.__.__.__.~_O~.,..~._.__.__~_.~,__._~~"..__~._."._.__.,___,_..__....~____~______~.,~,___. ;;.....;~.~ '" ..-.-.-......---- -.---.;. . :..-.._....-----_...----.--.-:_..~.:~-..;.---. PARAMETER MONTH JANUARY FEBRUARY MARCH APRIL MAY I .JUNE , .IIJlY AUGUST SEPTEMBER OCTOBER NOVEMBER DECEMBER ANNUAL MAXIMUM ANNUAL MINIMUM ANNUAL AVERAGE Page 31 of 53 CENTRAL CONTRA COSTA SANITARY DISTRICT TABLE 18 ANNUAL WASTE CHARACTERISTIC AND lOADING SUMMARY Final Effluent (E-001-5) YEAR 1987 24-Hour Composite TOTAL PHOSPHORUS CONCENTRA liON mg/l lOADING kg/day 4--~ 0'0 'E 010 z: (/) <I'l C u .~ 4-- ....., 010 MAXIMUM MINIMUM AVERAGE MAXIMUM MINIMl/M AVERAGE o o.~ ~> 5.8 3.4 7.8 4.7 8.0 4.4 8.6 5.6 7.9 5.8 8.4 4.2 7.0 4.5 7.8 5.3 6.6 4.0 9.9 4.2 7.6 5.4 7.5 3.4 5.1 997.4 494.3 753.2 9 o 6.5 1622.3 731.1 1081.3 8 o 6.2 1206.8 698.5 986.9 9 o 7.4'- 1231.1 781.8 1051.1 9 0 7.1 1080.6 827.5 9 56 . 2 8 0 6.0 1199.5 600.2 858.9 9 0 I 5.9 978.1 624.5 809. 2 9 0 6.3 1035. 5 711. 7 842.6 8 0 . 5.0 920.6 530.1 678.5 9 0 7.1 1227.8 558.6 948.9 9 0 6.5 1144.5 757.1 941. 3 8 0 5.7 1120.0 548.5 892.4 10 0 9 9 .. :~{::::f:{{;~::{#}:::::: f~:~:~::}~t{:;:~:}};:::f TOTAL ....................... ....................... ....................... ....................... :::::::::::::::::::::::::;:::::::::::.:::::::::: ::::::::::::::::~:::::::;:::;:::::::::::::::: 16 2 2 . 3 :i~::::~i~~j~~~j~:j~::~:j:::::iiji~::j~:;:~:~~ ~:::~j~j~j::::ij:::j~~::::::~~::~~:::~~~;::: N ~Ar:: ~ E ~ F .... ..... ............. ....................... IIi 3.4 .1111 . . . . . .' ... - . .. ....................... ....................... ....................... ....................... ....................... ....................... ........................ ::::::~:~:::::::::::::::::::::::::::::::~:::: 494 3 :::::;:::;::;:::;::::;:::;::;::::;:;::;::::::: 105 0 . tt::t:f;::::tttt:f :;:~::.~:.::~:::1.-::.~:::~:.:j:::.~_:::_~._::.~::::~:::_:.;:.:~.:::..~:::.~:::.~::_-.l:::j.-::_~:::~:::~:::~:..:.j..::.~.:::'::_~:::~:_.:_~:::~::::~_;::1._:_:r:::'::::::::::::::.:;:::::::::...:::.':.:1_:.:;::.~::.::..:_:.~:::::.: :..:.'_~::::::_l::.::::::::;:_.:.~::.;:::j:::~_~::.~..::.~::::~:.::l:::~:..:_;.;:_.:;:..:.::.::.j::_..~_-::j:::.!:..:j:::~::::~:::~_:::.j:..:.j::.~:::.~::_j::::::_~_-::.1:::):::::::\:._.j..::I:::;:::j:::j:-::j:::~.:::_j..::_~::: 6 2 ..... ..... .... .... ...... . ... .. . .. 9 00 0 .. .". . 1Cm11i1 . 6034 1 7ft Page 32 of 53 TABLE 19 CENTRAL CONTRA COSTA SANITARY DISTRICT ANNUAL AVERAGE WASTE CHARACTERISTICS SOLIDS HANDLING SUMMARY ___0 ..__.._==-=-~.. January - December 1987 CENTR I FUGED SLUDGE ANn ASH (WASTE-002) CHARACTERISTICS SLUDGE ASH DISPOSAL DISPOSAL Percent Percent Tons/day Tons/ Month Total Solids Moisture (wet weight) Day (Avg. ) (Avg.) . January 24.6 75.4 0 15.9 February 19.8 80.2 0 7.1 March 19.9 80.1 67.3 3.2 ,\ April 20.8 79.2 18.1 5.2 Hay 22.9 77 .2 0 11.2 June 21. 5 78.5 0 14.7 July 20.4 79.6 0 4.4 August 20.5 79.5 0 8.0 September 20.0 80.0 0 6.9 October 22.1 77 .9 0 7.2 ? November 25.7 74.3 0 7.4 December 28.7 71.3 0 8.1 "taximum 28.7 80.2 67.3 15.9 "tinimum 19.8 71.3 .0 3.2 !\verage 22.2 77 .8 7.1 8.3 ~ .- -.,.-~.- ~- . Table 20 Page 33 of 53 CENTRAL CONTRA COSTA SANITARY DISTRICT WATER POLLUTION CONTROL DIVISION REQUIREMENT COHPLiANCE SUMMARY - RECEIVING WATER - 1987 ~~ MACROSCOPIC ANALYSIS C C <VE r- UO..... tOc I I ~c ~tO . <V 0"", :::l ..c e- to to a-E -+J -+J >. E ...... ..- ...... ~ to 4.J ~ C >to CE -c a ; 9 C~ c<v ..... ~ O:::l O:::l .... ::l <VO ~ (/) (/) -c (/) ~~ EE ..... E COE 0100 EO -c ..c: ..... 4.J ..... Eo"", ~ .... >...... >, OE .... 4.J .Ll ..... 0 tOtO tOX ~ ~ x C XI ~ r-4 :J ~ ~ (/) to 0..... 0 Cf- ~ 0 0 ::l ..... 0 C ""0 ..- ""OE E e C :I: (/) ~ ..... 0 c.. 0 <V .......... <V -c -c "00 C a- t.) ~ ..... N 01 N..- c:l~ ~...... <V 0"", 0 co ~ 0lJ Cl 4.J 0"", E 0"", .......... >-- >-- > -+J .,.... -+J ~ a u 0 C <:l C C C 01 ~ C( ~ CL r- to -+JC ..... ..... E c o l.I) to OE o E o E O~ to <V 4.J 0 4.J ~ ... 0 ~ l.tJ -,..... N -,..... ...... (/) (/) 1Il:::l '[~" 1lI~ I1l C I1l ... ~ E-< 10"0 I q- (/)~ III 0 III -+J 0 ::l ~ 0 ... ... < C . <V C . ..... . ..... . ...... to =! ~ ~c ~ ~ CT 0 ~ 0 ...-l Cl ::JOE ::J 0 00 Of"'-. ceIle ~ 0 -< u ~ ~ -< Jan. Feb. Mar. 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 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 0/1 011 0/1 Oct. Nov. 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. . Tot. 0/4 0/4 0/4 0/4 0/4 1/4 0/4 0/4 0/4 0/4 0/4 0/4 }tax 0 ~lin . .\ve. I " ... Table 21 Page 34 of 53 CENTRAL CONTRA COSTA SANITARY DISTRICT ANNUAL RECEIVING WATER DATA SUMMARY YEAR 1987 PARArIlETER Un.ionized Ammonia - N lI'I C MONTH .... .... ~ o 0 co r- . . 0 o 0 MAXIMUM MINIMUM AVERAGE MAXIMUM MINIMUM AVERAGE Z z: >- mg/l J;lNUARV FEBf{UA'RV MARCH 0.001 < o. 001 <0.001 6 o APRIL ., MAY JUNE (0.0002 <0.0001 (0.0002 6 o JUl V AUGUST SEPTEMBER 0.016 0.001 0.005 6 o OCTOBER NOVEMBER 0.015 0.007 0.010 6 o DECEMBER ANNUAL MAXIMUM 0.016 TOTAL NUMBER OF SAMPLES ANNUAL AVERAGE ~~~~~t~~J~~~~I~~f~f:t}~~~~~~~t .......'.....d....... /0 0001 ~~I~~~~~~r~~~~~~~~ffi~f*~~~~Irl~ ~ . ::::::::::::::::::;2::~;::::~~:~::::::::::;: 11#11. (0.004 24 0 ANNUAL MINIMUM 6034 1. 7n M 1.0 N ~ 0 1.0 M QJ 0 0'1 ltl - a.. 0 0 Z I.U CD 0 a: .... 0\ t- - Z Z U I ~ a:: < 0 I- - L&J (/) Z I: GO - 0 C) -I :r:1.U ~ ,..... >- i~ ZI: <X> 0: (J\ < z::> I- ea: <I: r-- Li.lLIJ -1- r--IC) 0: Z N> C!5~ G\ UJ < -< I: I: - m (f) z>- lI) ...... :z: ~ < N..... I- 0-, o(!) \O! U MI- -: oI: UJ ...-i(/) z.... C) QJO ~z n v: I: ~u ....0 I :J 0:0 >- .~< Li.I:r: 1: a:: 1.J..a:: ~ -I < t- U) lI) ::> z L&J Z 0 ~ 0 <: u 0.. -, -J CD z <: z ~ a:: - I- > Z - UJ LIJ U U I.U 0 0: 0 tt) 0 v N 0 GO \0 ~ N 0 GO \0 ~ N 0 N - 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 I:CD'..J J.1.NUARY FEBflUARV MARCH APRIL MAY JUNE .11 JL Y AUGUST SEPTEMBER OCTOBER NOVEMBER DECEMBER ANNUAL MAXIMUM ANNUAL MINIMUM ANNUAL AVERAGE ... . :_.....;...:.._:~_. --." . ..... Table 22 Page 36 of 53 CENTRAL CONTRA COSTA SANITARY DISTRICT ANNUAL RECEIVING WATER DATA SUMMARY YEAR 1987 oH VI C '+- .f,.J 0 to ~ . 0 0 -..... MAXIMUM MINIMUM AVERAGE MAXIMUM MINIMUM AVERAGE z >- 7.4 7.4 7.4 6 o .,' 7.8 6 o 7.6 7.8 7.7 7.2 7.5 6 1 7.6 7.5 7.6 6 o 7.8 6034 1.71> . TOTAL NUMBER OF SAMPLES III 7.2 12 o III. '. 7.6 (V) N LO ~ 0 ...... (V) (l) en ltl 0.. 0 0\ co N ..... \D A% ~Z_~tI) ,_.____~...___~.,..___._."____._'m___'____._"_.__,_..__..._'''"__'__'_'_'_'__'''''n_..m.,_._.._.__. - --' .... PARAMETER MONTH J.lNUARV FEBRUAnV MARCH APRil MAY JUNE .lIll V AUGUST SEPTEMBER OCTOBER NOVEMBER DECEMBER ANNUAL MAXIMUM ANNUAL MINIMUM ANNUAL AVERAGE " :_..-:...:....;..:.:.... ---... .. ... Table 23 Page 38 of 53 CENTRAL CONTRA COSTA SANITARY DISTRICT Ar~NUAL RECEIVING WATER DATA SUMMARY YEAR 1987 <11 c: m '+- ~ 0 co .- . 0 0 0 'r- MAXIMUM MINIMUM AVERAGE MAXIMUM MINIMUM AVERAGE Z z: > 9.8 9.4 9.6 96 92 94 6 o 8.9 8.8 8.8 95 94 94 6 0 8.8 8.2 8.4 100 93 96 6 o 9.4 9.3 9.4 93 92 93 6 o 9.8 6034 1.71; . .. . TOTAL NUMBER OF SAMPLES IIr. ., .......... ......... ~~i~~~*i.~~~~~!;~~~i.~ :::~::~::::::~::~::::::~:?:::::::~::::: 2 4 :::;::;::::::::::::::::::::~::~:::::::::::: ':::::::::::::;::::::~::::::::~~::::::::::: o 8.2 1111\1. 9.0 94 M lO N 4- 0 '" M aJ 0'1 ttl c.. lit 0 Z 0 - .... e 0\ t- ~ U :) a: ~ l- f/) en z - 0 co 0 Z ~ >- Lr.I " U) CD a: >- :::> (J\ -c( ~ l- X 0 """ 0: Z Q M r-C) I.LJ -< 0 G\ m U') Lr.I co - ~ -< > " :c ..J U lOt- ~ I- ~ I.LJ .......f/) 1: \D! 0 0 en -oJ J: I aJU ;-c( - c/) >- Q LLJ 0: .~ a: a 0- -< L.l...t- a: z :::> z Lr.I II) Z 0 ~ -c( U J ...J :. -< a:. (!) I- Z <Ill" Z - UJ > U - Lr.I U Lr.I tot) ~ N o 0 000 0 0 000 0 o ~ ~ ~ ~ ~ <Ill" ~ N - Go .... c:.= c.)I,., Z ~ z 0 0 - ... < a: ... 0\ Z ~ LoU U U 0:: Z ~ 0 (f) u - co 0 Z ...... >- LoU CO 0:: (,!) ....J ()'I ~ " >- (!) I- )( 1: ~ a:: z 0 0 .....IC) UJ <: Q ,...: G\ II) (/) - lJ LoU u ~ > .... ::c u \O~ ...I 1: ... UJ .......(f) 0 z 0 \00 wo en ....J ~ I s..u en CI) :::::l I.&J >- .~~ - 0 a: 1.1..0:: Q a.. ~ ~ z :::> z a: If) z 0 LoU <: u ~ J ~ ~ ~ a:: ~ (,!) v z Z UJ - U > - LoU U tot) LoU a: ('\") L!') ~ o o o:::t W 0'1 rc c.. N N o 0\ ~ ~ \0 If) V tot) N 0 1:(1),....1 J.lNUARY FEBHUA~Y MARCH APRIL MAY .lUNE .11 Il Y AUGUST SEPTEMBER OCTOBER NOVEMBER DECEMBER ANNUAL MAXIMUM ANNUAL MINIMUM ANNUAL AVERAGE " ~....-.~..:.__..~- --.. . ... Table 24 Page 41 of 53 CENTRAL CONTRA COSTA SANITARY DISTRICT ANNUAL RECEIVING WATER DATA SUMt1ARY YEAR 1987 TOTAL COLIFORM CI1 c - MPN/100 ml <4- +" 0 to r- . 0 0 MAXIMUM MINIMUM AVERAGE MAXIMUM MINIMUM AVERAGE :z :> 920 130 382 6 o .. 230 110 6 0 165 330 (20 o <106 6 140 49 o 88 6 920 6034 1.7fi . TOT Al NUMBER OF SAMPLES . <20 24 0 _~~J;. 185 N M Ln 4- 0 N o::t" Q) O'l It! 0- 0 0\ t- ~ U 0:: 0 t- ..... (/) - - ..J GO a 0 ..... >- U co 0:: ..J 0\ -< t- < ,.. Z .... "to a: 0 ~ LLJ -< m (f) .... - fu -< 0: = t- UJ \01 u I"- ~ LLJ ...-l (/) a 0 z: I Q) U :. ~ >- ~ -< U) a: .~ 0:: Z -< u..t- ::> z - > If) z 0 < u - I.U "'"') ...J U -< I.U 0:: IX t- 'II" Z LLJ U tt) N o o 'II" o l/) tt) o o f't') o l/) N o o N o l/) o o o l/) o J:a.z,-ooJ:.... PARArJlETER MONTH J.lNUARY FEBfiUA~Y MARCH APRIL MAY ./UNE ./IJL Y AUGUST SEPTEMBER OCTOBER NOVEMBER DECEMBER ANNUAL MAXIMUM ANNUAL MINIMUM ANNUAL AVERAGE " Table 25 CENTRAL CONTRA COSTA SANITARY DISTRICT ANNUAL RECEIVING WATER DATA SUMMARY COLOR UN ITS MAXIMUM MINIMUM AVERAGE MAXIMUM MINIMUM 120 80 107 40 30 38 80 60 77 25 25 25 120 1111 25 gw".~"*,:. _l~. .... Page 43 of 53 YEAR 1987 VI c 4- ~ 0 to r- . 0 0 AVERAGE z: :> 6 o 6 o 6 0 6 0 TOTAL NUMBER OF SAMPLES 24 0 6034 1. 7n M L.{') 4- o o:::t o:::t OJ O'l rc a. N o t- 0\ U a: t- (f) a: - 0 co C >- ... F' a: 0 CD .c( U O't t- a: ~ z a::: L&J 1'-. UJ .c( ~ G\ m (f) - lii .c( :. :z: u oot- ~ ~i UJ ...-t(f) C 0 Z J: I ~u - ~.c( > >- .~a: a: L&J -< I.L.t- U :::> z 0 L&J IJ) Z U a: -< ""') -I .c( a: t- ~ Z UJ U tt) o N - o o o CO o ~ o ~ o N N o ----.-"-~----.---_,.__..._,__..____,_'.._.._.___,__,."__..m .,,~ ".._ ___..__._.__._.____..__.~..~._____,_~~_..._.~_._..____._.'_-'__.___,_.___.__,._,_~+__.__,.________.---,-,________.'_"__"__"".__"__. ::)z-....ct) " .... Table 26 Page 45 of 53 CENTRAL CONTRA COSTA SANITARY DISTRICT J.lNUARY FEBRUA1tY MARCH 63 55 60 6 o APRIL ~ r~1 A Y .JUNE 24 14 20 6 o ./IILY AUGUST SEPTEMBER 28 19 25 6 o OCTOBER NOVEMBEtl 14 10 12 6 o DECEMBER ANNUAL MAXIMUM 63 TOTAL NUMBER OF SAMPLES ANNUAL MINIMUM . 10 :IJIIIIIIIIIIII~II~112 4 .;:::::~::::::::::::::::::::::::*:::::::::: o ANNUAL AVERAGE lEi~~. 29 ...ww. 6034 1 - 7;; M LO N 4- 0 1..0 o::t (1) C'l rtl a.. 0\ ~ U a:: >- .... ... (/} - - Q GO 0 - ..... >- m CO a:: a: 0\ -c( ::) .... ... ,... 0: Z ""00 UJ -c( a: G\ fD (/} LLI - fu -< !< :z: u ~ \DB UJ 0) (f') ~ 0 ..-4 0 <D I: I EU 5,< z >- - a:: ...... a:: > -< LL..... - :::> z &.1.1 I/) Z 0 U -< U LLI J ...J a: <: a: .... ". Z UJ U to') o o \D o I/) o ". N o to') o N o o z...~ .__,_,~_.M~'___"____"'_'~<M..,,_._.... .' . '. '... ~ .__....~___.._'~____.___._.____._.._.___..___,_.__.,..__.~.___.. ,_'._.'___._____ Table 27 ORGANIC PRIORITY POllUTANTS Test Results Page 47 of 53 INFlUENT/EFFLUENT ANAlYSIS RESULTS POTW CENTRAl CONTRA COSTA SANITARY DISTRICT U80RATORY CAl TEST ANAlYTICAl L18ORATORY VOlATILES CAll results fn WET SEASON DRY SEASON ua/l unless noted) INFLUENT EFflUENT INFLUENT EFFLUENT INflUENT EFFLUENT INFLUENT EFFLUENT NRE DATE 21 6/87 2/ 6/87 12/02/87 12/02/87 5/29/87 5/29/87 9/15/87 9/15/87 NAI.. YSIS DATE 2/19/87 2/19/87 12/08187 12/08/87 6/26/87 6/26/87 9/29/87 9/29/87 ARNETER ~rolefn <10.00 <10.00 - - <10.00 <10.00 <50.00 <50.00 I k:rylonftrfle <10.00 <10.00 - - <10.00 <10.00 <50.00 <50.00 Benzene < 1.00 < 1.00 < 1.00 < 0.10 I < 1.00 I < 1.00 I 5.00 < 1.00 I Bromodfchloromethane < 1.00 < 1.00 < 1.00 4.00 I < 1.00 I < 1.00 < 1.00 I < 1.00 I Bromoform < 1.00 < 1.00 < 2.00 1.10 I < 1.00 < 1.00 1.00 < 1.00 I ~ romometh a ne < 1.00 < 1.00 < 1.00 < 0.10 I < 1.00 I < 1.00 I < 1.00 I < 1.00 I arbon tetrachlorfde < 1.00 < 1.00 < 1.00 < 0.10 I < 1.00 I < 1.00 < 1.00 < 1.00 I "'hlorobenzene < 1.00 < 1.00 < 1.00 < 0.10 I < 1.00 I < 1.00 < 1.00 < 1.00 hloroethane < 1.00 < 1.00 < 1.00 < 0.10 < 1.00 < 1.00 < 1.00 < 1.00 -Chloroethylvfnyl ether < 1.00 < 1.00 <10.00 < 1.00 I < 1.00 I < 1.00 < 2.00 < 2.00 I hloroform 11000.00. 6.0 8.00 8.20 I 5.00 4.00 I 13.00 < 2.00 I ~hloromethine < 1.00 . < 1.00 < 1.00 < 0.10 < 1.00 < 1.00 < 1.00 < 1.00 pfbromochloromethane < 1.00 < 1.00 < 1.00 2.90 < 1.00 < 1.00 < 1.00 < 1.00 ,l-Dfchloroethane < 1.00 < 1.00 < 1.00 < 0.10 < 1.00 < 1.00 < 1.00 < 1.00 ,2-Dfchloroethane < 1.00 < 1.00 < 1.00 < 0.10 < 1.00 < 1.00 < 1.00 < 1.00 ,l-Dfchloroethene < 1.00 < 1.00 < .1.00 < 0.10 I < 1.00 < 1.00 < 1.00 I < 1.00 rans-l,2-Dfchloroethene < 1.00 < 1.00 < 1.00 < 0.10 < 1.00 < 1.00 < 1.00 < 1.00 ,2-Dfchloropropane < 1.00 I < 1.00 < 1.00 < 0.10 < 1.00 < 1.00 < 1.00 < 1.00 ,3-Dfchloropropene < 1.00 I < 1.00 < 1.00 < 0.10 < 1.00 < 1.00 < 1.00 < 1.00 thyl benzene I < 1.00 < 1.00 < 1.00 < 0.10 4.00 < 1.00 5.00 < 1.00 ,1,2,2-Tetrachloroethane I < 1.00 I < 1.00 I < 5.00 < 0.50 < 1.00 < 1.00 < 1.00 I < 1.00 etrachloroethene I < 1.00 I 3.00 6.00 0.40 7.00 < 1.00 < 1.00 I < 1.00 01 uene I < 1.00 I 1.00 3.00 I 0.80 2.00 < 1.00 21.00 I < 1.00 ,l,l-Trfchloroethane I < 1.00 I 1.00 I 2.00 I 0.10 < 1.00 < 1.00 < 1.00 I < 1.00 ,1,2-Trfchloroethane I < 1.00 I < 1.00 I < 1.00 < 0.10 < 1.00 < 1.00 < 1.00 I < 1.00 rfchloroethene < 1.00 I < 1.00 < 1.00 < 0.10 < 1.00 < 1.00 < 1.00 I < 1.00 foyl chlorfde I < 1.00 I < 1.00 < 1.00 < 0.10 < 1. 00 < 1.00 < 1.00 < 1.00 ~hylene chlorfde I 12.00 I 15.00 <10.00 2.00 7.00 2.00 < 5.00 < 5.00 I .I ~one I - 30.00 - - - - <10.00 <10.00 )fmethyl dfsulffde - - - - - - - - sopropanol - 10.00 - - - - - - ~hane thfol - - - - - - - - I ~ylenes (total) < 1.00 5.00 3.00 < 0.50 - - 32.00 < 1.00 I *A probable analytical error by the District-contract laboratory. The laboratory had discarded the sample by the time the results were reviewed (five weeks). There was no way to confirm the concentration. .. --.-.'.-..--,-.--..-,.__....._.._..........._._.__._____..__n..,__._____.._______...____._..__..__ ______~_____._____"__.." Table 28 .-ORGAN Ie PRIORITY POLLUTANTS Test Results Page 48 of 53 INFLUENT/EFFLUENT ANALYSIS RESULTS UBORATORY CAL TEST ANn. YTICAL L.aBORATORY BASE NEUTRAL ACID P01'W CEN"ffiAL CON"ffiA roSTA SANITARY DISTRICT EXTRACTABLES Call results fn WET SEASON DRY SEASON uo/l untfless noted) INFLUENT EFFLUENT INFLUENT EFFLUENT INFLUENT EFFLUENT INFLUENT EFFLUENT AMPl. E DATE 2/ 6/87 2/ 6/87 12/03/87 12/03/87 5/29/87 5/29/87 9/16/87 9/16/87 NAL YSIS DATE 2/14/87 2/14/87 12/08/87 12/08/87 6/26/87 6/26/87 9/29/87 9/29/87 ARA~TER I cenaphthene < 1.00 < 1.00 < 1.00 < 1.00 < 1.00 < 2.00 < 5.00 < 2.00 I cenaphthy1ene < 1.00 < 1.00 < 1.00 < 1.00 < 1.00 < 2.00 < 5.00 < 2.00 I nthracene < 1.00 < 1.00 < 5.00 I < 5.00 < 1.00 < 2.00 < 5.00 < 2.00 I enz fdf ne < 40.00 < 40.00 < 2.00 < 2.00 < 40.00 < 80.00 < 10.00 < 4.00 I lenzo (a) anthracene < 1.00 < 1.00 < 2.00 I < 2.00 < 1.00 < 2.00 < 10.00 < 4.00 I enzo (b) f1 uoranthene < 1.00 < 1.00 < 2.00 I < 2.00 < 1.00 < 2.00 < 10.00 < 4.00 I enzo (k) fluoranthene < 1.00 < 1.00 < 2.00 < 2.00 < 1.00 < 2.00 < 10.00 < 4.00 I I:lenzo (a) py rene < 1.00 < 1.00 < 2.00 I < 2.00 < 1.00 < 2.00 < 10.00 < 4.00 I lenzo (g,h,f) perylene enzyl butyl phthalate fs (2-chloroethyl) ether fs (2-ch1oroethoxy) methane fs (2-chlorofsopropyl) ether I:lfs (2-ethy1 hexyl) phthal ate I I4-Branophenyl phenyl ether I ~-Chloronapthalene I I4-Chlorophenyl phenyl ether I ~hrysene I pfbenzo (a,h) anthracene I ~f-a-butY1Phthalate ,2-Dfchlorobenzene ,3-Dfch1orobenzene ~,4-Dfchlorobenzene !,3-DfChlorObenZfdfne fethyl phthalate fmethyl phthalate ,4-Dfnftrotoluene ~,6-Dfnftrotoluene ~foctYl phthalate ,2-0fpheny1hydrazfne 1 uoranthene 1 uorene exach1orobenzene exachlorobutadfene ~exachlorocyclopentadfene exachloroethane ndeno (l,2,3-cd) pyrene sophorone aphthalene ftrobenzene < 1.00 < 1.00 < 2.00 < 2.00 < 1.00 < 2.00 < 10.00 < 4.00 < 1.00 < 1.00 < 5.00 < 5.00 < 1.00 < 2.00 < 25.00 < 10.00 < 1.00 < 1.00 < 2.00 < 2.00 < 1.00 < 2.00 < 10.00 < 4.00 < 1.00 < 1.00 < 1.00 < 1.00 < 1.00 < 2.00 < 5.00 < 2.00 < 1.00 < 1.00 < 2.00 < 2.00 < 1.00 < 2.00 < 10.00 < 4.00 <100.00 <100.00 < 5.00 < 5.00 <100.00 <200.00 < 25.00 < 4.00 < 1.00 < 1.00 < 2.00 < 2.00 < 1.00 < 2.00 < 10.00 < 4.00 < 1.00 < 1.00 < 1.00 < 1.00 < 1.00 < 1.00 < 5.00 < 2.00 < 1.00 < 1.00 < 2.00 < 2.00 < 1.00 < 1.00 < 10.00 < 4.00 < 1.00 < 1.00 < 2.00 < 2.00 < 1.00 < 1.00 < 10.00 < 4.00 < 1.00 < 1.00 < 2.00 < 2.00 < 1.00 < 2.00 < 10.00 < 4.00 < 1.00 < 1.00 < 1.00 < 1.00 < 1.00 < 2.00 10.00 < 2.00 9.00 12.00 < 2.00 < 2.00 3.00 5.00 < 10.00 < 4.00 < 1.00 < 1.00 < 2.00 < 2.00 < 1.00 < 2.00 < 10.00 < 4.00 < 1.00 < 1.00 < 2.00 < 2.00 < 1.00 < 2.00 < 10.00 < 4.00 < 1.00 < 1.00 < 5.00 < 5.00 < 1.00 < 2.00 < 25 .00 < 10.00 < 1.00 < 1.00 < 1.00 < 1.00 < 1.00 < 2.00 < 5.00 < 2.00 < 1.00 < 1.00 < 1.00 < 1.00 < 1.00 < 2.00 < 5.00 < 2.00 < 1.00 < 1.00 < 2.00 < 2.00 < 10.00 < 4.00 < 1.00 < 1.00 < 5.00 < 5.00 < 5.00 < 4.00 < 1.00 < 1.00 < 1.00 < 1.00 2.00 < 5.00 < 2.00 < 1.00 < 1.00 < 10.00 < 10.00 2.00 < 50.00 < 20.00 < 1.00 < 1.00 < 1.00 < 1.00 2.00 < 5.00 < 2.00 < 1.00 < 1.00 < 1.00 < 1.00 2.00 < 5.00 < 2.00 < 1.00 < 1.00 < 5.00 < 5.00 2.00 < 25.00 < 10.00 < 1.00 < 1.00 < 2.00 < 2.00 2.00 < 10.00 < 4.00 < 1.00 < 1.00 < 5.00 < 5.00 2.00 < 25 .00 < 10.00 < 1.00 < 1.00 < 1.00 < 1.00 2.00 < 5.00 < 2.00 < 1.00 < 1.00 < 2.00 < 2.00 2.00 < 10.00 < 4.00 < 1.00 < 1.00 < 5.00 < 5.00 2.00 < 25.00 < 10.00 < 1.00 < 1.00 < 1.00 < 1.00 2.00 < 5.00 < 2.00 < 1.00 < 1.00 < 2.00 < 2.00 2.00 < 10.00 < 4.00 Table 29 -QRGANIC PRIORITY POLLUTANTS Test Results Page 49 of 53 INFLUENT/EFFLUENT ANALYSIS RESULTS POTW CENTRAl CONTRA COSTA SANITARY DISTRICT LABORATORY CALTEST ANALYTICAL LABORATORY BASE NEUTRAL ACID EXTRACTABLES Call results WET SEASON DRY SEASON in ua/l unless noted) INFLUENT EFFLUENT INFLUENT EFFLUENT INFLUENT EFFLUENT INFLUENT EFFLUENT ~AMPI..E DATE 2/ 6/87 2/ 6/87 12/02187 12/02/87 5/29/87 5/29/87 9/16/87 9/16/87 ~NAl YSIS DATE 2/13/87 2/13/87 12/08/87 12/08/87 6/26/87 6/26/87 9/29/87 9/29/87 ARAMETER ~N1trosod1methylam1ne < 1.00 < 1.00 < 20.00 < 20.00 < 1.00 < 2.00 <100.00 < 40.00 ~N1trosod1phenylam1ne < 1.00 < 1.00 < 2.00 < 2.00 < 1.00 < 2.00 < 10.00 < 4.00 ~N1trosod1-n-propyl ami ne < 1.00 < 1.00 < 1.00 < 1.00 < 1.00 < 2.00 < 5.00 < 2.00 I )henanthrene < 1.00 < 1.00 < 1.00 < 1.00 < 1.00 < 2.00 < 5.00 < 2.00 )y rene < 1.00 < 1.00 < 1.00 < 1.00 < 1.00 < 2.00 < 5.00 < 2.00 ,3,7,8-Tetrachlorod1benzo- - - - - - - < 0.50 < 0.50 p-d ~r1chlorobenzene < 1.00 < 1.00 < 2.00 < 2.00 - - < 10.00 < 4.00 ~r1chlorofluoromethane < 1.00 < 1.00 < 5.00 < 0.50 - - < 5.00 < 5.00 ~CID EXTRACTABLES b-Chloro-M-Cresol - - - - - - < 5.00 < 5.00 b-Ch 1 oropheno 1 < 1.00 < 1.00 < 1.00 < 1.00 < 1.00 < 2.00 < 4.00 < 2.00 b,4-D1chlorophenol < 1.00 < 1.00 < 1.00 < 1.00 - - < 4.00 < 2.00 b,4-D1methylphenol < 1.00 < 1.00 < 1.00 < 1.00 < 1.00 < 2.00 < 4.00 < 2.00 b,4-D1n1trophenol < 10.00 < 10.00 < 5.00 < 5.00 <10.00 <20.00 < 20.00 < 10.00 ~,6-D1n1tro-o-Cresol - - - - < 1.00 I < 2.00 I < 25.00 < 25.00 I b-N1trophenol I < 1.00 < 1.00 I < 1.00 I < 1.00 < 1.00 I < 2.00 I < 4.00 I < 2.00 I ~-N1trophenol I < 20.00 < 20.00 I < 1.00 I < 1.00 I <20.00 I <40.00 I < 4.00 I < 2.00 I ~entachloroPhenol < 1.00 < 1.00 I < 1.00 I < 1.00 I 6.00 I < 2.00 I < 4.00 < 2.00 I henol < 1.00 < 1.00 I < 1.00 < 1.00 I < 1.00 < 2.00 < 20.00 < 2.00 I t~4,6-Tr1chloroPhenol I < 1.00 < 1.00 I < 1.00 I < 1.00 I - - I < 4.00 I < 2.00 I ,6-d1 n1tro-2-methvl Dhenol < 1.00 < 1.00 < 5.00 < 5.00 - - < 20.00 < 10.00 .--..-...----.--,.-.---.---.-...--.~---.-~-.--...~,---._."...._._._'__._'~__.M..._._..___.___,___._______.___"___,_._...__~___ Table 310 ORGANIC PRIORITY POLLUTANTS Test Results Page 50 of 53 INFLUENT/EFFLUENT ANAlYSIS RESULTS P()'fW CENTRAl CONTRA ooSTA SANITARY DISTRICT LfBORATORY CAL TEST ANAlYTICAL LfBORATORY PESTICIDES & PCB'S (all WET SEASON DRY SEASON results in uo/l unless noted) INFLUENT EFFLUENT INFLUENT EFFLUENT INFLUENT EFFLUENT INFLUENT EFFLUENT lC;AMPLE DATE 2/ 6/87 21 6/87 12102/ 87 12/02/87 5/29/87 5/29/87 9/15/87 9/15/87 L(NAL YSIS DATE 2/14/87 2/14/87 12/10/87 12/10/87 6/29/87 6/29/87 10/12187 10/12/87 ARNETER ORGANOCHLORINE PESTICIDES I Aldrin < 0.10 < 0.10 < 0.01 < 0.01 I < 0.25 < 0.25 < 0.01 < 0.10 a-BHC < 0.10 < 0.10 < 0.01 < 0.01 < 0.25 < 0.25 < 0.01 < 0.20 b-BHC < 0.10 < 0.10 < 0.01 < 0.01 < 0.25 < 0.25 < 0.01 < 0.10 d-BHC < 0.10 < 0.10 < 0.01 < 0.05 < 0.25 < 0.25 < 0.10 < 0.10 I g-BHC < 0.10 < 0.10 < 0.01 < 0.01 < 0.25 < 0.25 < 0.01 < 0.10 Chlordane < 0.30 < 0.30 < 0.05 < 0.05 < 1.50 < 1.50 < 0.20 < 0.20 ~,4-DDD < 0.10 < 0.10 < 0.05 < 0.05 < 0.25 < 0.05 < 0.05 < 0.50 ,4-DDE < 0.10 < 0.20 < 0.02 < 0.02 < 0.25 < 0.05 < 0.02 < 0.20 14,4-DDT < 0.10 < 0.10 < 0.05 < 0.05 < 0.10 < 0.10 < 0.05 < 0.50 ~1eldr1n < 0.10 < 0.20 ) < 0.02 < 0.02 < 0.25 < 0.05 < 0.02 < 0.20 ndosul fan I < 0.10 < 0.20 < 0.02 < 0.02 < 0.25 < 0.05 < 0.02 < 0.20 Endosul fan II < 0.10 < 0.10 < 0.02 < 0.02 < 0.25 < 0.05 < 0.02 < 0.20 Endosulfan Sulfate ~ndr1 n ~ndr1n aldehyde ~eptachlor ~eptachlor epox1de troxaphene ~CB-1016 ~CB-1221 ~CB-1232 ~CB-1242 ~CB-1248 CB-1254 CB-1260 RGANOPHOSPHORUS PESTICIDES ~1nP.hOS methyl (Guth1on) emeton (Systox) 1 az 1non D1sulfaton (D1syston) ~th1on ~1ath1on ~arath1on ethyl arath10n meth 1 < 0.10 < 0.10 < 0.05 < 0.05 < 0.10 < 0.10 < 0.05 < 0.50 < 0.10 < 0.10 < 0.02 < 0.02 < 0.50 < 0.10 < 0.02 < 0.20 < 0.10 < 0.10 < 0.05 < 0.05 < 0.10 < 0.10 < 0.05 < 0.50 < 0.10 < 0.10 < 0.01 < 0.01 < 0.25 < 0.25 < 0.01 < 0.10 < 0.10 < 0.10 < 0.01 < 0.01 < 0.25 < 0.05 < 0.01 < 0.30 < 1.00 < 1.00 < 0.20 < 0.20 < 5.00 < 1.00 < 0.20 < 0.20 < 0.30 < 0.30 < 0.20 < 0.20 < 1.50 < 1.50 < 0.20 < 0.20 < 0.30 < 0.30 < 0.20 < 0.20 < 1.50 < 1.50 < 0.20 < 0.20 < 0.30 < 0.30 < 0.20 < 0.20 < 1.50 < 1.50 < 0.20 < 0.20 < 0.30 < 0.30 < 0.20 < 0.20 < 1.50 < 0.30 < 0.20 < 0.20 < 0.30 < 0.30 < 0.20 < 0.20 < 1.50 < 0.30 < 0.20 < 0.20 < 0.30 < 0.30 < 0.20 < 0.20 < 1.50 < 0.30 < 0.20 < 0.20 < 0.30 < 0.30 < 0.20 < 0.20 < 1.50 < 0.30 < 0.20 < 0.20 < 0.20 < 0.50 < 0.50 < 0.20 < 0.20 < 0.50 < 0.50 < 0.50 ____'._._n._..__~__._..__...,.__,'____.__~~_.._".,"_......_,..".,._.__u___.._....~__,,_"~,_,.,~._ .""'._"_____'"~______..,._~_,__.__._.__...._..._ Table 31 -ORGANIC PRIORITY POLLUTANTS Test Results ~age 51 of 53 INFLUENT/EFFLUENT ANALYSIS RESULTS POlW CENTRAL CONTRA COSTA SANITARY DISTRICT LABORATORY CALTEST ANALYTICAL LABORATORY PESTICIDES & PCB'S (all resu 1 ts 1 n ugl1 unless noted) WET SEASON DRY SEASON (continued) INFLUENT EFFLUENT INFLUENT EFFLUENT INFLUENT EFFLUENT INFLUENT EFFLUENT SAMPLE DATE 2/ 6/87 21 6/87 12/03/87 12103/87 5/29/87 5/29/87 9/15/87 9/15/87 NAL YSIS DATE 3/ 4/87 3/ 4/87 12116/87 12116/87 6/29/87 6/29/87 10/14/87 10/14/87 ARAMETER ARBAMATE AND UREA PESTICIDES ~i nocarb < 5.00 < 5.00 < 1.00 < 1.00 < 10.00 < 10.00 < 10.00 < 10.00 :larban < 5.00 < 5.00 < 1.00 < 1.00 < 10.00 < 10.00 < 10.00 < 10.00 .;arbaryl < 5.00 < 5.00 2.10 < 1.00 < 10.00 < 10.00 < 10.00 < 10.00 :arbofuran < 5.00 < 5.00 < 5.00 < 5.00 < 10.00 < 10.00 < 50.00 < 50.00 "hlorpropham < 5.00 < 5.00 < 1.00 5.00 < 10.00 < 10.00 < 10.00 < 10.00 ) 1 u ron < 5.00 < 5.00 < 1.00 < 1. 00 < 10.00 < 10.00 < 10.00 < 10.00 enu ron < 5.00 < 5.00 < 1.00 < 1.00 < 10.00 < 10.00 < 10.00 < 10.00 enuron-TCA < 5.00 < 5.00 - - < 10.00 < 10.00 - - 1 uometuron < 5.00 < 5.80 <15.00 <15.00 < 10.00 < 10.00 <150.00 <150.00 fnuron < 5.00 < 5.00 1.80 < 1.00 < 10.00 < 10.00 < 10.00 < 10.00 Meth f oca rb < 5.00 < 5.00 < 1.00 < 1.00 < 10.00 < 10.00 < 10.00 < 10.00 Methomyl < 5.00 < 5.00 <10.00 <10.00 < 10.00 < 10.00 <100.00 <100.00 Mexacarbate '< 5.00 < 5.00 < 1.00 < 1.00 - - < 10.00 < 10.00 Manuron < 5.00 < 5.00 3.20 < 1.00 < 10.00 < 10.00 < 10.01) < 10.00 Monu ron- TCA < 5.00 < 5.00 - - < 10.00 < 10.00 - - Neburon < 5.00 < 5.00 < 1.00 < 1.00 < 10.00 < 10.00 < 10.00 < 10.00 Dxamyl < 5.00 < 5.00 <10.00 <10.00 < 10.00 < 10.00 <100.00 <100.00 Propham < 5.00 < 5.00 4.20 < 1.00 < 10.00 < 10.00 < 10.00 < 10.00 Propoxur < 5.00 < 5.00 73.00 67.00 < 10.00 < 10.00 < 10.00 < 10.00 Sfduron < 5.00 < 5.00 < 1.00 7.90 < 10.00 < 10.00 < 10.00 < 10.00 Table 32 JRGANIC PRIORITY POLLUTANTS Test Results SlUDGE ~1L YSIS ~SUl TS Page 52 of 53 P01lf CENlR1L CONlRA OOSTA S~ITARY DISTRICT SlUDGE DEWATERI~ ~THOD. CENT1UAJGE l~ORATORY BfOfN & CAI.~Ell l~ORATORIES " SOlIDS IN SlUDGE. 18.81 WET SEASON* DRY SEASON CAKE 12/11/86 12/18:12/17 12/31:1/5:12/18/86 ASH 12/11/86 12/18: 12/17 12/31:1/5:12/18/86 CAKE 5/24/87 6/ 2/87 6/ 8/87 ASH 5/29/87 - 6/ 2/87 6/ 8/87 0.2 3.1 < 2.50 3.00 < 0.2 0.6 < 2.50 < 2.50 0.6 3.0 6.00 6.00 2.9 52.0 39.00 86.00 12.0 53.0 162.00 400.00 11.0 14.0 88.00 138.00 0.49 < 0.01 < 0.10 0.10 2.6 52.0 10.00 57.00 0.8 4.0 < 2.50 < 2.50 7.4 110.0 42.00 126.00 73.0 860.0 338.00 918.00 < 0.5 < 0.5 <10.0 < 10.0 32.0 43.0 6.3 52.0 <.10.0 < 10.0 < 0.1 < 0.02 < 0.20 < 0.01 < 0.5 < 0.5 < 1.00 < 0.05 < 0.1 < 0.1 < 0.15 < 0.03 < 0.05 < 0.05 < 0.05 < 0.01 < 0.1 < 0.05 < 0.05 < 0.05 1 < 0.05 < 0.05 < 0.05 < 0.01 < 0.01 < 0.1 < 0.15 < 0.03 < 0.02 < 0.02 < 0.20 < 0.01 < 1.0 < 1.0 < 6.00 < 0.30 < 0.5 < 0.5 < 1.00 < 0.05 < 0.5 < 0.2 < 0.40 < 0.20 < 0.5 < 0.2 < 0.40 < 0.20 < 0.5 < 0.2 < 0.40 < 0.20 0.5 < 0.2 < 0.40 < 0.20 entachlorophenol < 0.1 < 0.20 < 0.20 enol 3.1 1.9 < 0.20 < 0.20 ASE/NEUTRAlS is C2-Ethylhexyl) < 10.0 < 20~00 < 20.00 phthalate 2-D 1 chl orobenzene < 0.1 < 0.20 < 0.20 *Next wet season cake and ash samp"es w 111 be taken in February 1988. ___""~""<"_'_U____,_,__''''''''_."..''-_,....__,__..,"'___..____.___~'_______."_.,__.__.__._.~_,,_~.___._""'_~""__,._,,_._. . Figure 20 Page 53 of 53 . Centr&. Contra Costa Sanitar) District BOARD OF DIRECTORS PAGE 1 OF 19 POSITION PAPER BOARD MEETING OF NO. VIr. BUDGET AND FINANCE 1 SUBJECT RECEIVE THE FISCAL YEAR 1987-88 CAPITAL IMPROVEMENT PROGRAM MID-YEAR STATUS REPORT AND AUTHORIZE $231,600 FROM THE SEWER CONSTRUCTION FUND FOR THE COLLECTION SYSTEM PROGRAM CONTINGENCY ACCOUNT DATE Februar 16 1988 TYPE OF ACTION RECEIVE REPORT AUTHORIZE FUNDS SUBMITTED BY INITIATING DEPT./DIV. Jarred Mi amoto-Mills, Senior En ineer artment/Plannin Div. ISSUE: The Capital Improvement Budget (CIB) system provides for a mid-year report to the Board of Directors on the status of the District's Capital Improvement Program. Board authorization is requested to supplement the Collection System Program Contingency Account from the Sewer Construction Fund. BACKGROUND: The Board of Directors adopted a new CIS system in June 1987. A mid-year report on the status of the Capital Improvement Program was provided for under the new system. A summary of the status of Capital Improvement Program revenue, expenditures, and funding allocations for the first six months of the fiscal year is presented below: Six Months Ended December 31, 1987 Fiscal Year Ending June 30, 1988 Capital Improvement Plan Actual Proj ected Est imate Variance Revenues $ 8,563,601 I $18,895,000 $18,880,000 0% Expenditures 13,873,320 I 28,459,320 28,887,000 2% I Expenditures over $ 5,309,719 I $ 9,564,320 $10,007,000 4% Revenues I Attachment 1 provides a detailed analysis of the mid-year status of the District's Capital Improvement Program. Highlights are summarized below. Capital Improvement Revenues: District revenues received from all sources credited to the Sewer Construction Fund for the six months ended December 31, 1987, total $8,563,601, which represents 45 percent of the $18,880,000 revenue for the entire year projected in the Capital Improvement Pl an. Tabl e 1 of Attachment 1 presents the 6-month status and the current year-end proj ecti on for the capital revenue accounts. It is estimated that total capital improvement revenue by the end of the fiscal year will reach the Capital Improvement Plan projection. REVIEWED AND RECOMMENDED FOR BOARD ACTION 1302A..9/85 JMM JMK RAB /J _1 /V\ rz ;f}fJ INITIA ING DEPT.lDIV. SUBJECT POSITION PAPER RECEIVE THE FISCAL YEAR 1987-88 CAPITAL IMPROVEMENT PROGRAM MID-YEAR STATUS REPORT AND AUTHORIZE $231,600 FROM THE SEWER CONSTRUCTION FUND FOR THE COLLECTION SYSTEM PROGRAM CONTINGENCY ACCOUNT PAGE DATE 2 OF 19 February 16, 1988 Expenditures for Capital ImproveBent Projects: District expenditures for capital improvement projects for the fi rst six months of the fiscal year total $13,873,320, which represents 48 percent of the $28,887,000 projected for expenditure this fiscal year in the Capital Improvement Pl an. It is estimated that total capital improvement expenditures by the end of the fiscal year will be within 2 percent of the amount estimated in the Capital Improvement Pl an. Tabl e 4 of Attachment 1 presents a summary of actual 6-month and projected 12-month expenditures in each budget program. Detailed information at the project level is included in Appendix A of Attachment 1. Allocations to Capital ImproveBent Projects: Allocations of funds from program budgets to capital improvement projects for the first six months of the fiscal year total $5,420,174, which represents 25 percent of the $21,618,500 authorized by the Soard for the entire fiscal year. Allocations are not expected to be uniformly distributed throughout the fiscal year. Table 2 of Attachment 1 presents a projection of estimated allocations from program budgets to specific projects for the second six months of the fiscal year compared to estimates for these allocations made at the time the CIS was prepared. Current program budget authorizations shoul d be adequate to fund anticipated allocations for the remainder of the fiscal year with the exception of the Treatment Pl ant Program which may requi re suppl emental authorizations before the end of the fiscal year for three projects as discussed below. o The Industrial Water Reclamation Demonstration Project has been accelerated into the 1987-88 fiscal year. It is currently projected that the Demonstration Project will require allocation of $645,000 to $1,195,000 more than anticipated in the CIS for the fiscal year. o The Outfall Project has been accelerated sl ightly so that a contract is expected to be awarded before the end of the fi scal year. As a resul t, it is currently estimated that the construction work will require allocation of $1,240,000 more than estimated in the CIS for the fiscal year. o It is anticipated that the construction contract for the Dewatering Project will be awarded in March. The current engineer's estimate for the project exceeds the CIS estimate by $441,000. Consequently, an allocation of $441,000 more than estimated in the CIS may be requi red before the end of the fiscal year. Staff is monitoring actual versus estimated allocations within the program budgets. At this time, additional funds are not needed for the Treatment Pl ant Program. If additional funds are needed in the future, a request will be made along with a detailed description of the basis of the request. 13026-9/85 SUBJECT POSITION PAPER RECEIVE THE FISCAL YEAR 1987-88 CAPITAL IMPROVEMENT PROGRAM MID-YEAR STATUS ~PORT AND ,AUTHORIZE $231,600 FROM THE SEWER CONSTRUCTION FUND FOR THE COLLECTION SYSTEM PROGRAM CONTINGENCY ACCOUNT PAGE 3 DATE OF 19 February 16, 1988 Table 3 of Attachment 1 presents a listing of allocations made from program cont i ngency accounts between J ul y 1, 1987, and December 31, 1987. Cont i ngency allocations to unanticipated new projects, particularly the A-I Line Soldier Pile Installation, and the I-680/SR-24 Sewer Relocations, have resulted in depletion of the Coll ection System Program Conti ngency Account. It is requested that the Board authorize $231,600 (the amount of the conti ngency allocations approved by the Board for these two projects) from the Sewer Construction Fund to replenish the Collection System Program Contingency Account. An allocation of approximately $900,000 for construction of the I-680/SR-24 Sewer Relocations is projected prior to the end of the fiscal year. While this allocation was not anticipated in the CIB, it can be accommodated within the currently authorized Collection System Program Budget. All costs associated with the project will be reimbursed by Caltrans through a future "Util ities Agreement." RECOMMENDATION: Receive the fi scal year 1987-88 Capital Improvement Program Mid-Year Status Report. Authorize $231,600 from the Sewer Construction Fund for the Collection System Program Contingency Account. 13028-9/85 .ge 4 of 19 ATTACHMENT 1 CENTRAL CONTRA COSTA SANITARY DISTRICT Fiscal Year 1987-88 Capital Improvement Program Mid-Year Status Report Detailed Analysis INTRODUCTION A new system for capital improvements pl anni ng/budgeti ng was established at Central Contra Costa Sanitary District in June 1987. The District's monthly Financial Management Information System (FMIS) financial statements were revised to provide specific information on the operation of the budget system, and a mi d-year report on the status of the Capital Improvement Program was planned. This is the first such report under the new system. CAPITAL IMPROVEMENT REVENUES District revenues received from all sources credited to the Sewer Construction Fund for the six months ending December 31, 1987, total $8,563,601, which represents 45 percent of the $18,880,000 projected in the Capital Improvement Pl an for the enti re fi scal year. Tabl e 1 presents the distribution of actual versus projected amounts among the capital revenue accounts. It is anticipated that capital improvement revenues from all sources will total $18,895,000 at the end of the fiscal year with no significant variance from the original projection. Specific information on the status of each of the revenue categories is presented be 1 ow : Interest on Investments Interest income on temporary investment of the Sewer Construction Fund for the first six months of the fiscal year totals $2,283,844, which represents 54 percent of the $4,271,000 projected revenue for the entire year. It is anticipated that interest rates will remain stabl e in the short term and that a favorabl e vari ance in Interest Income of approximatel y 5 percent will exi st at the end of the f i sca 1 yea r. Fixture Fees Fixture Fees collected during the first six months of the fiscal year total $1,834,086, which represents 78 percent of the $2,371,000 projected revenue for the entire year. The original projections for development rates were underestimated, resul ti ng in a hi gher than anticipated revenue. It is anticipated that current trends will continue in the short term and that a favorable variance in Fixture Fee revenue of approximately 40 percent will exist at the end of the fi scal year. ~ 5 of 19 Watershed Fees Watershed Fees coll ected duri ng the fi rst six months of the fi scal year total $1,179,337, which represents 62 percent of the $1,904,000 projected revenue for the entire year. This is largely due to the continued dominance of developments in the San Ramon Valley where unit fees are higher than average. It is anticipated that the current trend will be sustained in the short term and that a favorabl e vari ance in Watershed Fee revenue of approximatel y 10 percent will exist at the end of the fiscal year. Annexation Charges Annexation Charges collected during the first six months of the fiscal year total $471,094, which represents 111 percent of the $426,000 proj ected revenue for the enti re year. Thi s favorabl e variance reflects a higher than anticipated rate of connection in areas not previously annexed to the District, primarily in the San Ramon Valley. It is anticipated that the current trend will continue in the short term and that a favorable variance in Annexation Charge revenue of approximately 100 percent will exist at the end of the fiscal year for an anticipated total annual revenue of $852,000. Ad Valorem Taxes Tax revenue for the fi rst six months of the fi scal year total s $2,527,736, whi ch represents 50 percent of the $5,001,000 proj ected revenue for the entire year. Since the District's income from property tax is divided into two equal installments, it is anticipated that actual tax revenue will match that projected, within 1 percent, at the end of the fiscal year. Funds from Government Agencies This revenue category is compri sed of funds received from the City of Concord and from Cl ean Water Grants. Each will be addressed separately. City of Concord The city has been billed $2,314,720 for its contribution to the fiscal year 1987-88 Capital Improvement Program. This billing refl ects actual expenditures for the fi rst six months of the fiscal year and a projection of expenditures for the remai nder of the year. It is anticipated that payment will be received in March 1988. The billed amount represents 57 percent of the $4,065,000 projected revenue for the enti re year. The 43 percent unfavorable variance for the projected amount is due to delays in large treatment plant projects, particularly the Dewatering Project and an adjustment to the fiscal year 1986-87 bill ing to account for actual versus projected expenditures during that fiscal year. r = 6 of 19 Cl ean Water Grants A "Final p repa red. $500,000. p roj ecte d Payment Request" for the Stage 5B grant is being The approximate amount of the payment request is This payment represents 100 percent of the $500,000 revenue for the entire year. The payments anticipated above, which total $2,814,720, will be the only revenue collected in this category this year. Thus, an unfavorabl e vari ance in Funds from Government Agenci es revenue of approximately 39 percent will exist at the end of the fiscal year. Miscellaneous Income Income under this category includes revenue from cash discounts earned, rebates and, for fi scal year 1987-88 in particul ar, bonds sold to finance LID 56 - La Casa Via/Brodia Way Sewer Extension (DP 4144). Miscellaneous Income for the first six months of the fiscal year total $267,504, which represents 78 percent of the $342,000 projected revenue for the entire year. It is anticipated that an unfavorable variance in Miscellaneous Income of approximately 20 percent will exist at the end of the fiscal year. This variance is due to: (1) a lower than anticipated bond sale for LID 56, which resulted from a lower than estimated design and constrution cost for the project, and (2) deferral of the Combustion Air System Controller Project, which was expected to accrue a rebate from P.G.& E. for a portion of the project cost. ALLOCATIONS TO PROJECTS FROM PROGRAM BUDGETS Allocations of funds from program budgets to specific capital improvement projects during the first six months of the fiscal year total $5,420,174, which represents 25 percent of the $21,618,500 authorized by the Board. Allocations are not expected to be uniformly distributed throughout the fiscal year. For example, the allocation for construction of the Dewatering System Improvements Project, which is the largest Treatment Plant Program project planned this year, is currently estimated to be $7,140,000 and will not occur until March. This allocation alone will account for 33 percent of the allocations projected for the entire year. A listing of actual allocations for the first six months of the fiscal year and current projections of allocations for the remaining six months of the fiscal year is presented in Appendix A. A summary of this information for each Budget Program is presented in Table 2. Allocations from ProQram Unallocated Authorizations Under the CIB system, the Board of Directors authorizes budgets for the three Capital Improvement Budget Programs (Treatment Plant, Coll ecti on System, and General Improvements) from the Sewer Construction Fund at the beginning of the fiscal year. The General Manager-Chief Engineer is delegated the authority to allocate these funds to projects listed in the CIB to establish specific project budgets. P '7 of 19 Allocations during the first six months of the fiscal year are summarized below: ProQram Treatment Pl ant Collection System General Improvements Amount Allocated 7/1/87-12/31/87 TOTAL: $1,575,890 3,215,148 629,136 $5,420,174 Greater than anticipated allocations in three large Treatment Plant projects may be required during the second six months of the fiscal year. Explanations of these three situations are presented below: Outf all P roj ect Additional allocation of funds will be requested for the Outfall Project - Phase II. The reason for the additional allocation is acceleration of the construction schedule. Award of the major construction contract is currently planned for the end of fiscal year 1987-88, rather than in fiscal year 1988-89 as originally indicated in the CIB. OewaterinQ System Improvements When the 1987-88 Capital Improvement Budget was adopted, it was anti ci pated that the Oewateri ng System Improvements Proj ect would be awarded in October 1987. Presently, award of that construction contract is scheduled for March 3, 1988. The delay is the result of the compl ications associated with the protest of the centrifuge prequalification decision by Bird Machine Company, as well as the rebid of the centrifuge contract. Because the centrifuge suppl ier was not determined unt 11 June 1987, the desi gn phase of the proj ect had to be extended to tailor the plans and specifications to the equipment which would actually be furnished. Wastewater Recl amation Project The status of the Wastewater Recl amation Project was described in a Position Paper presented to the Board of Oi rectors at their February 4,1988, meeting. In summary, the original approach, as described in the CIB, was to study and identify potential cost-effective uses for reclaimed water. The allocation estimated for this effort in the CIB was $120,000. The study found that use of recl aimed water in industrial cooling towers was potentially cost effective and that a demonstrati on proj ect coul d be impl emented as soon as th i s summer. The short implementation period was based upon the extensive use of existing facilities. 'e 8 of 19 The District and Contra Costa Water District have been actively pursuing a full-scale Industrial Water Reclamation Project with industries. Additional funding allocations of $645,000 to $1,195,000 will be required to implement the demonstration phase of the project. Allocations from Proqram Continqencies Under the CIB system, the General Manager-Chief Engineer is delegated authority to allocate funds from Program Contingency accounts to establish budgets for new projects not listed in the CIB and to cover project budget overruns within specific limitations. Of the funds allocated during the first six months of the fiscal year, $357,231 was allocated to fund unanticipated new proj ects and one construction overrun (Concord Revenue Meters-DP 20013). A listing of these allocations is presented in Table 3. Two new Collection System projects were notably large and exceeded the General Manager-Chief Engineer's authority to allocate contingency funds. In these two cases, the Board approved the allocations. Descriptions of the two new projects are presented below: I-680/SR-24 Sewer Relocations Caltrans has initiated design of the first unit of the I-680/SR-24 Interchange expansion ahead of the schedul e which was avail abl e to the Di strict when the CIB was prepared. The first unit will consist of lane widening between Newell Avenue and Rudgear Road. To accommodate the proposed widening, 2,000 feet of 36-inch sewer in South Main, 300 feet of 8-inch sewer serving Cross Creek, and several manholes will have to be relocated. Caltrans has directed the District to relocate these sewers. An additional 1,475 feet of 18- and 36-inch corrugated metal sewer pipe wil 1 al so be repl aced due to its deteriorated condition. Construction of the relocations must be completed by September 1988 to meet Caltrans' schedule requirements. Two allocations from the Collection System Contingency, total ing $191,000, have been made to the project to cover facilities design. It is estimated that an allocation of approximately $900,000 for construction of the project will be required prior to the end of the fiscal year. A-I Line: Soldier Pile Installation The City of Walnut Creek has recently approved the construction of a three-story sports health center (Lupois Building) at the corner of Ygnacio Valley Road and the old Southern Pacific Railroad right-of-way. The District's future A-I line will be installed immediately east of the east wall of the sports Je 9 of 19 health center. Due to a zero setback requirement on the proposed bu il di ng, the cl earance between the future pi pe and the building foundation is estimated to be less than 10 feet. Extreme difficulty is anticipated in installing shoring for the future A-I 1 ine excavation without causing any damage to the adjacent building. The soldier pile project will facilitate the installation of the A-I line in the future and has greatly lessened the potential for damage to the building. The proposed sports health center is scheduled for completion in the spring of 1988. Construction of the sol ider pile project was completed in December 1987. The contingency allocation for the project was $65,600. Because of these two large allocations, the Collection System Contingency Account has been depleted. A supplemental authorization of $231,600 (the amount of the contingency allocations approved by the Board for these two projects) is being requested to replenish the account. EXPENDITURES FOR CAPITAL IMPROVEMENTS Oi strict expenditures for capital improvement proj ects for the fi rst six months of the fiscal year total $13,873,320, which represents 48 percent of the $28,887,000 projected expenditures for the enti re year. (Expenditures for particular projects are presented in the Capital Improvement Budget Status Reports provided to the Board in the monthly FMIS financial statements.) A 1 isti ng of actual expenditures for the fi rst six months of the fi scal year and current projections of expenditures for the remaining six months of the fiscal year are presented in Appendix A. A summary of this information for each Budget Program is presented in Table 4. FORCE ACCOUNT BUDGET Force Account 1 abor hours expended for capital improvement proj ects for the first six months of the fiscal year total 32,108 hours, which represents 55 percent of the 58,770 hours projected in the CIB for the entire fiscal year. It is anticipated that a simil ar District Force Account 1 abor effort will be requi red in the remai ni ng six months of the fi scal year. SUMMARY The new CIB system successfully provides the Board with a "big-picture" overview of the Capital Improvement Program while improving staff accountability and streamlining program administration. Actual versus projected performance in Capital Improvement Revenues collected, funding allocation from Program Authorizations by staff, and expenditures for capital improvement projects for fiscal year 1987-88 has been remarkably good. With the presentation of a proposal for revision of the Capital Improvement Fee System this spring, the new CIB system, first presented to the Board in conceptual form in February 1987, wil 1 be substanti ally compl ete. TABLE 1 r . 10 of 19 Capital Improvement Revenue Summary Note: All amounts in thousands CIP ESTIMATED REV ENU E FY 1987/88 REVENUE 7/01/87 TO 12/31/87 PROJECTED REV ENU E FOR REMAINDER FY 1987/88 CURRENT PROJECTED FY 1987/88 REV ENU E VARIANCE CURRENT PROJECTED TO CIP ESTIMATE Interest 5% Fixture Watershed Annexation Taxes Other Concord Grants Miscellaneous $ 4,271 2,341 1,904 426 5,001 4,095 500 342 $2,284 1,834 1,179 471 2,528 -0- -0- 268 $ 2,201 1,485 915 381 2,528 2,315 500 6 $ 4,485 3,319 2,094 852 5,056 2,315 500 274 40% 10% 100% 1% ( 44% ) 0% (20%) 0% TOTALS: $18,880 $8,564 $10,331 $18,895 ~ 11 of 19 TJlBLE 2 Summary of Allocations by Program Note: All amounts in thousands CIS ESTIMATED ALLOCATIONS FY 1987/88 ALLOCATIONS 7/01/87 TO 12/31/87 ESTIMATED ALLOCATIONS FOR REMAINDER FY 1987/88 OJ RRENT PROJEcrED FY 1987/88 ALLOCATION VARIANCE OJ RRENT PROJEcrED TO CIS ESTIMATE Treatment $12,516 $1,576 $11 ,458 $13 ,034 ( 4%) Pl ant Collection 5,960 3,215 2,385 5,600 6% System General 3,142(1)(2) 629 (1) 1,910 (2) 2,539 19% Improvements TOTALS: $21,618 $5,420 $15,753 $21 ,173 ( 2%) (1) Includes a $49,500 supplemental authorization for the Lagiss property purchase (Ref 8/20/87 Soard meeting). (2) Incl udes a $1,200,000 suppl emental authorization for the Lagiss property purchase (Ref 2/4/88 Soard meeting). I"-"e 12 of 19 "C 0) > 0 0) L. C 00 000 Oo::to::to::t o::t 000 OLl'l a. ...... 0) 00 o Ll'I Ll'I oo::to::to::t o::t 000 0,..... c.. C 0 OLl'l Ll'I C\"l C\"l O..........Ll'I Ll'I 0C\"l..... .....co Itl ......c ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... Itlltl \0 CO COo::to::t ~O\o::tOO N .....0\..... 0\\0 0) E.- 0\ CO ,..... Ll'I ..... """Ll'ICO N o::tmm NN L. 0) Itl Ll'ILl'I Ll'I Ll'I Ll'I NNN..... .... 0) 0:: CO .... .... ~ ,.... 0 ..... ..... III "C 0) 0 000 0 \0 00 0 \0 00 OLl'l Ll'I ..... "C .f-l.f-l 0 OLl'lO Ll'I Ll'IOO 0 Ll'I ON ON N C\"l C C Itl Ll'I 0r""'l0 \0 COO\O 0 o::t ,.....N ON r""'l N Itl ::J 0 ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... o 0 ,..... Oo::tO r""'l -.:tLl'lLl'l \0 ..... .....co NN -.:t ,..... .f-l E.- .....N-.:t CO N\O \0 \0 ..... Ll'I ...... <:.- ..... N .... .... 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C\"lN co <: .....0 N N -l .....C\"lNO 0 LU .....ON ON Itl LU a a a a a -l a a a a a z a a a a a L. 0:: \0..... .....NN 0 \00\0..... N LU \OCOO r""'lN ..... l- I- Or""'l .......... ..... U 00.......... ..... (!) 00..... ..... ..... ...... -". --_....__......"...."._..~--_.~--_...__._~~-_....._....__ ..u. ~--__~.....,,__~_~.___.__._._".~.__.______~__.___m..._."____..______.___..____. , Je 13 of 19 TABLE 4 Summary of Expenditures by ProQram Note: All amounts in thousands CIP ESTIMATED EXPENDITURES FY 1987/88 EXPENDITURES 7/01/87 TO 12/31/ 87 ESTIMATED EXPENDITURES FOR REMAINDER FY 1987/88 OJRRENT PROJECTED FY 1987/88 EXPENDITURES VARIANCE OJ RRENT PROJECTED TO CIP ESTIMATE Treatment $10,734 $ 3,348 $ 4,363 $ 7,711 28% Pl ant Collection 15,294 9,534 8,937 18,471 ( 21% ) Sy stem General 2,859(1) 991 2,286( 2) 2,277 20% Improvements TOTALS: $28,887 $13 ,873 $15,586 $28,459 2% (1) Includes supplemental authorizations for the Lagiss property purchase. 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Funasaki, Finance Officer INITIATING DEPT.lDIV. Administrative/Finance & Accounting ISSUE: The Board of Directors has received written suggestions and recommendations on alternative rate-setting methods from the District's franchised refuse collectors. BAa<GROOtI>: On January 21, 1988, the Board of Di rectors expressed interest in reviewing alternatives to the present method of setting refuse collection rates. The Board particularly wished to consider alternative rate-setting methods in which measures to achieve reductions in operating expenses are an important component. Each refuse collector was requested to provide written comments by February 8, 1988. The comments by Valley Disposal Service, Inc., Orinda-Moraga Disposal Service, Inc., and Pleasant Hill Bay Shore Disposal are appended as Attachments I, II, and III, respectively. RECOMMENDATION: Receive and consider written suggestions and recommendations from the franchised refuse collectors, and provide direction for preparation of a staff report. ; . Of. :,- ",'--'I ~ "~~ INITIATING DEPT.lDIV. REVIEWED AND RECOMMENDED FOR BOARD ACTION 1302A-9/85 WNF PM /~~~~ ": ATTACHMENT I Telephone 935-8900 DISPOSAL SERVICE POST OFFICE BOX 4007 WALNUT CREEK, CALIFORNIA 94596 February 5, 1988 HAND-DELIVERED Mr. Paul Morsen Deputy General Manager Central Contra Costa Sanitary District 5019 Imhoff Place Martinez, CA 94553 Dear Paul: This letter is in response to the District's letter of Jan. 25 which invites alternatives to the present system of rate setting for refuse collection. First of all we thank you for the opportunity to present new ideas. We don't like the present system any more than the directors like to hear us complain at every rate setting hearing. We agree with the Board that the time to consider alternatives is now -- not when there is a rate application before you. Our overall concern is that the pendulum of regulation has swung too far to the extent that reasonable profits can not be made, that risks are not compensated for and that long-term investment is foolish. We believe that the District and its rate-payers would benefit from less regulation so that incentives are present to reduce cost and investments can be made in modernized service delivery systems and increased offerings, such as curbside recycling. Setting aside for the moment our contention that the District in any case should allow for the pass-through of the disposal cost, the current 95 percent operating ratio in and of itself does not allow for a reasonable profit. The District's policy is both pre-tax and pre-interest, which is to say that any remaining profit falls in the 2-3 percent category, unless we have made a mistake in projecting expenses, in which case we can experience a loss. ,.,.; * Mr. Paul Morsen February 5, 1988 Page 2 As we indicated in our responses to questions regarding the assignment of the franchise to Waste Management, we believe that a system predicated on expense and controlled profitability removes any incentive to reduce cost. Waste Management believes that there are many opportunities to reduce operating costs, but many of them involve substantial investment which is not encouraged in the 95 percent policy. Specifically we are exploring the need for a new corporation yard and a transfer station, which are multi-million dollar investments. Add to that the opportunity to implement automated service and curbside recycling and you have major expenses with potential offsetting savings -- none of which is practical in the present system. Having expounded on the problems, let me layout the key tenets of our proposal. We hope it lays the groundwork for more detailed discussions in the near future. 1. We believe the best possible rate setting method moves away from a cost-driven system to a system of rate comparison for the same service in the same or comparable geographical areas. We believe there should be a mechanism for CPI increases, and that provisions are made for recovery of extraordinary cost increases such as the current disposal hikes at Acme Fill. 2. We believe that greater profitability should be allowed. We are facing tremendous risks compared the the risk free environment of investment in Treasury Bills, and should be compensated accordingly. 3. We believe that once a comparable rat'e- is-'eistaDrfsh'ect-...~'- when CPI adjustments are allowed and when extraordinary costs may be recovered on an interim basis, that any and all cost savings achieved should be retained by the company. That is an incentive for improved efficiency and greater productivity. ... 4. We believe that a relaxed regulatory environment should be accompanied by a commitment to continued high service standards, to the modernization of service systems and to expanded services. Accordingly, we believe that the District should require curbside collection of garbage. That will enable the collector to invest in new equipment for more efficient service such as the fully automated system in San Ramon, for example. It will also reduce manpower cost and worker injuries. Mr. Paul Morsen February 5, 1988 Page 3 5. We believe that all of these adjustments -- a move to curbside service, greater incentive for investment and cost-cutting and greater profitability -- will allow for the possibility of a curbside recycling program provided we can receive a fair price for the service. 6. We believe that the key to all of these adjustments inevitably leads to a lengthening of the franchise term. In order to undertake the kinds of investment contemplated we need to know that the franchise term will be long enough to recover the costs. Again, we thank you for the opportunity to put forth our ideas, and we hope to meet with you soon to consider these thoughts and any other ones that you may have. Very truly yours, 7na~AA..// ~z.~/ Marshall Grodin General Manager ATTACHMENT II LITTLE & SAPUTO ATTORNEYS AT LAW PETER T. SAPUTO GISELLE A. JURKANIN KEN D. LITTLE February 8, 1988 49 QUAIL COURT, SUITE 311 WALNUT CREEK, CA 945% (415) 944-0300 Paul Morsen Deputy General Manager Central Contra Costa Sanitary District 5019 Imhoff Place Martinez, CA 94553 Re: Rate-Setting Methodology Dear Mr. Morsen: This firm represents Orinda-Moraga Disposal Service, Inc. and has been asked to reply to your letter dated January 25, 1988. Your letter requested written comments regarding alternative rate-setting methods, particularly those that incorporated expense reduction incentives. You also forwarded a copy of the Price Waterhouse report dated February 7, 1983, which discussed the District's rate setting procedures and methods of determining rates. Presumably, you desire comments on that report as well. The major overall concern about the rate setting methodology utilized by the District is that it ignores reality and is not in line with any known industry standard. A major criticism is that the method utilized does not allow interest expense as a deduction with or without the profit factor. Similarly, the franchise fee is also not allowed as an expense upon which profit is calculated. In the past, this methodology has resulted in a rate of return that seemed to be well below industry standards and did not allow a reasonable or fair rate of return considering the risks taken. An example of how the rate setting techniques ignore reality can be readily found in the drop box rate. As we understand it, the drop box rates are determined on a flat percentage increase based upon total revenue requirements. This specifically ignores the cost of service involved. For example, a 20 yard drop box has a dump fee cost of $98 and requires approximately 1.7 hours for each complete trip at a cost of approximately $60 per hour for the drop box truck and the driver. This yields a total cost of approximately $200. The allowed rate is only $159.50 per box. This means that for every drop box picked up at this rate, the Paul Morsen Central Contra Costa Sanitary District February 8, 1988 Page 2 operator looses in excess of $40. These recaptured through future rate increases. District does not permit recapture of losses. costs In any cannot event, be the A couple of suggestions to consider for possible expense reductions are (i) changing the can rates, and (ii) curbside pickup. If the rate for the first can were reduced and the rates for second and third cans were increased so that the overall total revenue was the same, over time, this could reduce the rate of increase of costs. It would also help to encourage recycling which could have multiple benefits. A second suggestion is to either encourage or mandate curbside pickup, rather than backyard or sideyard pickup. This would greatly increase operating efficiency. It would also tie into the possibility of additional recycling programs. This method would not change the costs immediately, but could keep the rate of increase down. This could also allow for possible mechanization in the future which could yield even greater efficiency. We appreciate the opportunity to make comments on the rate setting methodologies. We expect to have a representative at the Board meeting and will be available to answer any questions that our comments might raise. Very truly yours, LITTLE & SAPUTO "'" ~ 1/:" '" -;/ ~ Ke D. tittle KDL/mk cc: Orinda-Moraga Disposal, Inc. ATTACHMENT III LITTLE & SAPUTO ATTORNEYS AT LAW PETER T. SAPUTO GISELLE A. JURKANIN KEN D. LITTLE February 8, 1988 49 QUAIL COURT, SUITE 311 WALNUT CREEK, CA 94596 (415) 944-0300 Paul Morsen Deputy General Manager Central Contra Costa Sanitary District 5019 Imhoff Place Martinez, CA 94553 Re: Rate Setting Methodology Dear Mr. Morsen: We have been asked to respond on behalf of Pleasant Hill Bay Shore Disposal ("PHBD") to your letter dated January 25, 1988. Your letter invited written comments concerning alternative rate setting methods, particularly those that incorporated expense reduction incentives. Your letter also included a copy of the Price Waterhouse report dated February 7, 1983, which investigated the District's rate setting procedures and some al ternati ve methods of rate setting. PHBD was neither a party to the initial study or report nor was it invol ved in any of the discussions concerning that report. PHBD has not previously made comments on it. Presumably, some comments are solicited at this time. Price Waterhouse Report vs. District Rate settinq Practices Time and space do not permit extensive comments on the Price Waterhouse Report, itself, at least in any great detail. In general, comparing the information in the Price Waterhouse report wi th the current rate setting techniques of the District, it appears that the recommendations in the Price Waterhouse report are not followed. For example, on page 14 of the report it states "the rate should provide for sufficient profits to support current operations and investment, and attract additional investment needed to support and promote efficient operation." The rates currently do not provide for sufficient profits, let alone attract additional investment or meet current investment needs. In particular, since interest expense is not allowed as a cost, with or without profit, and since taxes are expected to be paid out of the 5% operating ratio allowed, the net effect is that after tax the profit to this company is a loss. It is highly unlikely that any additional capital would be invested Paul Morsen Central Contra Costa Sanitary District February 8, 1988 Page 2 under these circumstances, even if to do so would yield increased efficiency. Since there is no return on the investment and the carrying costs of the investment cannot be repaid from the slim margin of profit permitted there is no incentive to invest further. Interest is a legitimate cost of doing business. It should be allowed. The report is an industry-wide assessment and is thus perhaps too restrictive. Its suggestions and comments should be adapted to local conditions. A 5% operating ratio does not readily appear as an industry standard. In fact, using other methods of calculation of profit, it appears that a 5% operating ratio is unlikely. For example, the industry pretax income/net sales appears to range from 18% to 25%. The 5% rate is so low as to yield programmed obsolescence with respect to equipment used. Where the business involved is not large scale, the use of a 5% operating ratio does not seem appropriate. Under current practices, losses are not able to be recaptured. It is not feasible to finance losses since interest deductions are not permitted. Customer mix is a large factor in cost of service, but the District seems to ignore this, choosing instead to apply a flat percentage increase based on overall revenue requirements. As Price Waterhouse stated in its report on page 15, the revenue requirement is comprised of two key variables -- cost of service and profit. An illustration which highlights the problems both in the inability to recapture losses and the cost of service can be shown by the box rates. For example, a 20 yard box currently has a dump fee charge of $98 and the labor and equipment charge per trip is about $70. Therefore, the cost is about $170 to the operator to accomplish that service. The District only permits a charge to the customer of $159.95. Accordingly, the operator looses approximately $10 per trip to provide this service to the District's customers. This loss cannot be financed adequately because the interest cannot be deducted. Current policy of the District does not permit losses to be made up at future rate settings. Even if losses could be made up with increased rates, that does not work for box services because box services are a one-time item. Paul Morsen Central Contra Costa Sanitary District February 8, 1988 Page 3 A more realistic approach would take the cost of service and add profit. At 18%, the rate should be around $190 - $200. PHBD is on a calendar year. This is difficult to or coordinate with your July 1 rate setting Accordingly, the rates are always set on six-month old some projections. The collector bears the risk if the is too low. reconcile deadline. data, plus projection The District might consider a fair rate of return on the capital employed, or the going concern value of the business. Another technique might be to consider a fair rate of return based upon the fair market or replacement value of the assets versus a simple return on equity. Comparables In general, we agree that comparables only tell you whether or not you are "in line". More importantly, it only tells you whether or not you are "in line" as of the date of the posted rates, which are usually outdated by the time of the current rate setting procedures. Comparables do not tell you if the compared rate yields a fair return to the compared operator. Also, comparables do not adequately take into effect the differences in costs of service and mix of customers. PHBD within its own operations experiences wide differences in costs of service and customer mix. Therefore, comparables must be used with caution. Cost Savinq One cost saving technique that has merit both for the operator as well as the District, is to use a Consumer Price Index or some other automatic adjustment for subsequent years. For example, other jurisdictions require rate applications every three or four years with an automatic increase in the interim. This avoids the operator spending great sums to retain personnel to wade through the rate setting process. Likewise, the District is spared that cost. Given the rate that the CPI has increased over the last few years, it is unlikely that the rates would get out of hand in the interim. Another suggestion would be to consider mandatory curbside service. This would increase efficiency and would help to encourage recycling potentials. Also, if the curbside services Paul Morsen Central Contra Costa Sanitary District February 8, 1988 Page 4 were then mechanized, further reductions in cost could be realized, such as a reduction in worker's compensation claims. In any event, curbside service, particularly that which is mechanized, would eventually yield cost savings and in the interim would keep down the rate of increase of costs, particularly those related to labor. The operator understands, however, that customer dissatisfaction and other political pressures would occur if such a program were insti tuted. A further problem would be the capital outlay needed to mechanize the curbside service. Thank you for the opportunity to submit written comments on these items. A representative for PHBD will be in attendance at the Board meeting on February 18 to answer any questions you might have concerning the comments here or other matters. If you have any questions, please do not hesitate to contact the undersigned. Very truly yours, LITTLE & SAPUTO ~~ KDL/mk cc: Pleasant Hill Bay Shore Disposal