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Home My WebLink AboutAGENDA BACKUP 02-17-94 Central Contra Costa Sanitary District BOARD OF DIRECTORS PAGa 1 OF 1 BOARD MEETING OF February 1 7, 1 994 NO. 4. CONSENT CALENDAR j. Df!~bruary 14, 1994 SUBJECT AUTHORIZE THE ATTENDANCE OF JAMES KELLY, PLANT OPERATIONS DIVISION MANAGER, AT THE WEF REUSE SPECIAL TV CONFERENCE IN DALLAS, TEXAS, AT A COST OF $800 TYPE OF ACTION AUTHORIZE ATTENDANCE SUBMITTED BY Charles W. Batts INITIATING DEPT./DIV. Plant Operations Department r ISSUE: Approval by the Board of Directors is required for unbudgeted travel outside of California and/or if the expense will exceed $500. BACKGROUND: James M. Kelly, Plant Operations Division Manager, is Central Contra Costa Sanitary District's (CCCSD) main contact with the Regional Water Quality Control Board on water reuse and disinfection standards. Mr. Kelly has written two papers that have been accepted for presentation at the Water Environment Federation (WEF) Reuse Specialty Conference to be held in Dallas, Texas, February 27 through March 2, 1994. Attendance at the conference will allow Mr. Kelly to exchange current technical information regarding water reuse and microbial risk assessment and disinfection with experts from other parts of the country. Funds are available in the Plant Operations Department Technical Training, Conferences, and Meetings budget to cover the costs of this conference. RECOMMENDATION: Authorize the attendance of James M. Kelly, Plant Operations Division Manager, at the February 27 through. March 2, 1994, WEF Reuse Specialty Conference in Dallas, Texas at a cost of $800. REVIEWED AND RECOMMENDED FOR BOARD ACTION INITIATI,NG DEPT.lDIV. ~MIC 1302A-7/91 ~ CWB ~ Central Contra Costa Sanitary District BOARD OF DIRECTORS PAGE 1 OF 1 BOARD MEETING OF February 17, 1 994 NO. 4. CONSENT CALENDAR k. SUBJECT DENY CLAIMS FOR INDEMNITY FROM SUNRISE HILL ASSOCIATES AND THE HAIST CORPORATION DATE February 10, 1994 TYPE OF ACTION DENY CLAIMS SUBMITTED BY Bonnie Allen, Risk Manager INITIATING DEPT.lDIV. Administrative/Risk Management & Safety ISSUE: The Sunrise Hill Associates and the Haist Corporation have filed claims alleging that the District is liable to them for indemnity and contribution arising out of the Samimi vs. Sunrise Hill Associates lawsuit (92-05489). Claim denials require action by the Board of Directors. BACKGROUND: Claimants are defendants in the Samimi lawsuit which involves claims arising out of damage to the Sa mimi's home from soil subsidence. The District is also a defendant along with several other utilities and other corporate entities. The Sunrise Hill Associates and the Haist Corporation (affiliated entities in this development) contend that the District, among others, may be responsible for any liability which might be imposed on them. Filing of this claim is a procedural prerequisite to the claimants pursuing any indemnity rights against the District. The District denies any responsibility to the Samimis and/or the claimants. RECOMMENDATION: Deny the claims by Sunrise Hill Associates and the Haist Corporation and refer to staff for further action as required. REVIEWED AND RECOMMENDED FOR BOARD ACTION INITIATI,NG DEPT.lDIV. 1302A-7/91 ADS/Position Paper #2/Clmslndem.PP Central Contra Costa Sanitary District BOARD OF DIRECTORS PAGE 1 OF 3 BOARD MEETING OF February 17, 1994 NO. 6. SOLID WASTE b. SUBJECT DATE February 14, 1 994 CONSIDER REQUEST BY VALLEY WASTE MANAGEMENT, ORINDA-MORAGA DISPOSAL, AND FRANCISE FIORENTINO FOR PAYMENT OF LEGAL FEES INCURRED IN THEIR DEFENSE OF THE ACME LANDFILL CERCLA LITIGATION TYPE OF ACTION CONSIDER PAYMENT OF LEGAL FEES SUBMITTED BY INITIATING DEPT./DIV. Kent Aim, District Counsel ISSUE: Valley Waste Management, Orinda-Moraga Disposal and Francise Fiorentino (as shareholder of Valley Disposal) have requested that each be reimbursed for legal fees previously incurred and those currently being incurred for their respective defenses in the Acme Landfill CERCLA litigation. The District did include within the rate structure for 1993 and the current rate structure defense costs associated with the Acme Landfill litigation. Those amounts have been impounded by the District. However, the District has not made any determination as to what portion of those impounded amounts should be paid to Orinda-Moraga Disposal, Valley Waste Management, or Francise Fiorentino (Valley Disposal). BACKGROUND: In the fall of 1992 both Orinda-Moraga Disposal and Valley Waste Management requested that monies be included in the rate structure to pay for the anticipated attorneys' fees for defending each company in the Acme lawsuit. A similar request was made on behalf of Francise Fiorentino (Valley Disposal) in the fall of 1993. The inference of the requests appears to be that each party's involvement in the lawsuit somehow arises directly out of the franchisee's activities in collecting and disposing of District ratepayers solid waste under the current and past franchise agreements. For 1993 the. District provided a component within the rates to establish an impound account out of which some portion of defense costs could be reimbursed to Orinda-Moraga Disposal and Valley Waste Managementor or could be used to cover other costs associated with the Acme lawsuit. The determination as to the allowability of these costs and the appropriate amount of reimbursement was deferred. The same procedure occurred with regard to the rate setting year of 1994. To date the District has taken no action to create an impound account related to defense costs incurred by Francise Fiorentino (Valley Disposal). For the year of 1993, the Board-authorized amounts of $208,800 and $66,000 were impounded for both Valley Waste Management and Orinda-Moraga Disposal, respectively. District Counsel has proposed to Valley Waste Management and Orinda-Moraga Disposal that each company be reimbursed for 50 percent of its reasonable defense costs. This payment would have to be treated as an advance, subject to repayment out of any insurance proceeds received for defense costs. Valley Waste Management strenuously objected to the proposal and asserted to both the staff and to the Board that all of the reasonable legal fees incurred in the defense of the Acme lawsuit should be passed through to the ratepayers. Valley Waste Management's position was based both on business issues as well as legal considerations. REVIEWED AND RECOMMENDED FOR BOARD ACTION RjHI~ ROGER J. DOLAN K.Alm/0091256.01 INITIATI~m. 1302A-7/91 KLA CONSIDER REQUEST BY VALLEY WASTE MANAGEMENT, ORINDA-MORAGA DISPOSAL, AND FRANCISE FIORENTINO FOR PAYMENT OF LEGAL FEES INCURRED IN THEIR DEFENSE OF THE ACME LANDFILL CERCLA LITIGATION SUBJECT PAGE DATE 2 OF 3 February 14, 1994 Valley Waste Management has recently summarized its position to District Counsel. Valley Waste contends that their role in delivery of waste to the Acme site is de minimis based on their ownership of the franchise for only one (1) year prior to the closure of Acme North Parcel, coupled with the alleged impossibility of taking the waste elsewhere during that period. They further contend that it is Waste Management's experience nationally that the collector! transporter only pays five (5) to ten (10) percent of any liability share attributed to the municipal solid waste stream. Accordingly, they feel a 50 percent payment of defense costs is not reasonable. They have suggested that a payment of a minimum of 80 percent could provide a basis for reaching an acceptable compromise. Such a compromise would presumably allow Valley Waste to continue to fully participate in the Municipal Solid Waste Defense Group. Staff's analysis suggests that any determination of whether the District should advance any portion of the defense cost involves the consideration of several issues. Without attempting to fully discuss the details of the various germane issues, there remain legal issues, business issues, and the separate issue of payments to a former franchisee out of current franchise revenues. Not all of these issues are clearly known at this time, nor would they likely be known without extensive legal proceedings. Staff's review of these issues has resulted in several conclusions which may be germane to the Board's consideration, as follows: (1) Any payments by the District should be treated as advances, to be repaid out of future insurance proceeds, when and if obtained. (2) Any advance of defense costs to the collectors should be conditioned upon each company diligently pursuing its potential insurance claims as well as claims made on behalf of the District as an additional insured. (3) Any action taken by the District regarding defense costs must clarify that the pass- through of such costs is distinct from the issue of the ultimate respective liability among the parties, if any is imposed. (4) Any defense costs deemed eligible for reimbursement or pass-through, should be reviewed to insure that only costs which are necessary, reasonable, allowable and allocable be paid by the District out of the impound accounts. (5) A cap should be placed on any payment amount so that the amount to be paid the collector will not exceed that provided for in the rates through the impound account. 1302B-7/91 CONSIDER REQUEST BY VALLEY WASTE MANAGEMENT, ORINDA-MORAGA DISPOSAL, AND FRANCISE FIORENTINO FOR PAYMENT OF LEGAL FEES INCURRED IN THEIR DEFENSE OF THE ACME LANDFILL CERCLA LITIGATION SUBJECT PAGE DATE 3 OF 3 February 14, 1 994 Staff further believes that the claim of Francise Fiorentino should be determined separately inasmuch as said claim is on behalf of an entity which is not the current District franchisee. Staff has substantial concerns, separate from those expressed above, as to whether the District can lawfully be required to pay legal costs for an entity which is not a current franchisee. The underlying contention that legitimate legal costs are recoverable, as reasonable operating costs incurred in the current year of operation does not apply. The issue of responsibility for Acme liability was considered by the selling and acquiring companies based on their negotiated acquisition agreement. Based on staff's conclusion that the issue before the Board is largely one of policy, staff is providing several options for your consideration rather than a single recommendation. The options include, at minimum: (1) Make no payments to the franchisees unless or until these responsibilities are clarified through legal proceedings; (2) Advance 50 percent of the previously incurred costs a"d current year expenditures; (3) Advance a portion of the costs in excess of 50 percent and less than 1 00 percent for previously incurred costs and current year expenditures; or (4) Advance 1 00 percent of previously incurred and current year expenditures. Staff's suggestion is that the Board should favorably consider advancing at least some portion of the defense costs sought by Valley Waste and Orinda-Moraga Disposal. Neither this recommendation by staff nor any action adooted by the Board should in any way be construed as an admission of , or comment uoon, the ootential legal liability of the District in the Acme lawsuit or with reaard to a oayment of defense costs therefor. Staff believes that at this time it is in the best interest of the ratepayers for the collectors and the franchisor for the same waste shed to continue to defend the case jointly, rather than use our finite resources in disputes between us. A reasonable advance may be properly viewed as a appropriated compromise of a complex issue. RECOMMENDATION: The Board consider request and make a determination as to what percentage, if any, of the legal costs of the current franchisees should be paid out of the impound account and direct staff to prepare a resolution setting forth the adopted Board position with appropriate conditions for payment. The Board consider and make a determination as to the payment of legal costs of Francise Fiorentino. 13028-7/91 ~ Centra. ~~~~~ g~~~R~~~ba~~ .listrict PAGE 1 OF 2 POSITION PAPER BOARD MEETING OF Februar 17, 1994 NO. 7. ENGINEERING a. SUBJECT DATE February 7, 1994 TYPE OF ACTION INITIATE ANNEXATION D.A. 128 INITIATE PROCEEDINGS TO CHANGE THE DISTRICT'S SPHERE OF INFLUENCE (S.O.I.) AND FORMALLY ANNEX 622.12 ACRES OF LAND ADJOINING THE DISTRICT'S EXISTING S.O.I. AND BOUNDARY ~UBMIT.TEQ I3YII . E' uenms Ha , ASSOCiate nglneer INITIATING DEPT.lDIV. Engineering Department, Infrastructure Division ISSUE: Shapell Industries of Northern California, the property owners, have petitioned the District to annex the subject property. BACKGROUND: The subject property is a planned development known as "The Country Club at Gale Ranch." It is located in the northwestern most portion of the area known as Dougherty Valley. The proposed project will include 1,216 residential units, a 218-acre golf course, three parks, a church and 114 acres of unimproved open space. An EIR which includes this property has been certified for the Dougherty Valley General Plan Amendment and Specific Plan. This EIR assumed that the District would serve the subject property since gravity flow to District facilities is possible. District staff has reviewed this EIR and determined that the impacts of annexation to the District and the proposed mitigation measures were adequately addressed. Staff also has determined that sewer service could be provided to the subject property independent of the remainder of the Dougherty Valley. RECOMMENDATION: Adopt a resolution of application for the annexation of the subject property and request the revision of the District's current S.O.I. to include the subject property. REVIEWED AND RECOMMENDED FOR BOARD ACTION I)r INITIA TING DEPT./DIV. 1302A-9/85 C:\WP61\PP\SOI.PP .. -+ I I I --+ ! \ I i I I: Central Contra Costa Sanitary DlstItct DISTRICT ANNEXATION NO 128 COUNTRY CLUB AT GALE RANCH 2523-9;88 ~ Central ~~~~~ g~s~~R~~~~~~ -.listrict PAGE 1 OF 3 POSITION PAPER BOARD MEETING OF Februar 17 1994 NO. 7. ENGINEERING b. SUBJECT DATE February 10, 1994 TYPE OF ACTION CONSIDER REQUEST BY THOMAS PROPERTIES FOR DISTRICT PARTICIPATION IN THE RELOCATION OF AN EXISTING SEWER AND SUSPENSION OF FEES CONSIDER REQUEST SjJBMII.TEQ ~YC Jay ::s. Me oy, Infrastructure Division Manager INITI~INQ DEPT./DIV. ~nglneenng Departmentl Infrastructure Department ISSUE: An existing trunk sewer in the Tice Valley area of Walnut Creek must be relocated to clear a proposed Payless Drug Store building. The District has no recorded easement for this sewer. BACKGROUND: A new Payless Drug Store is proposed to be built at the southwest corner of the intersection of Tice Valley Boulevard and Rossmoor Parkway. There is an existing 21-inch diameter trunk sewer traversing the property where the store will be built. The outside wall of the proposed store, which is closest to Tice Valley Boulevard, is approximately two feet from the existing sewer. The configuration of the store is a standard package developed by Payless and cannot be modified. The location of the store has been moved as far as possible away from the existing sewer given the constraints of the existing site. The resulting location still remains too close to the existing sewer to provide adequate access for future maintenance and, eventually, rehabilitation of the sewer. Various alternatives have been evaluated to solve the access problem, including moving the building, changing the exterior of the building, deepening the foundation of the building and lining the existing sewer. These alternatives are infeasible, impractical, or do not completely eliminate the access problem. A conclusion has been reached that existing sewer must be moved to provide future access for maintenance and rehabilitation. The District does not have a recorded easement for the existing sewer. The developer of the Payless Drug Store, Thomas Properties, who is also the owner of the property where the store will be built, contends that the District is responsible for the cost of relocating the existing sewer because the District has no recorded easement. Although there is no recorded easement, the District has an obligation to operate and maintain the portion of the trunk sewer across the Payless property because the District operates and maintains the trunk sewers, both upstream and downstream of the Payless property. The upstream and downstream trunk sewers are located in public streets and are direct continuations of the sewer across the Payless property. Since the construction of the Payless Drug Store could potentially affect the district's ability to continue to provide sewer service through the portion of the trunk sewer across the Payless property, District staff has taken a position that the developer, Thomas Properties, is responsible for the cost of relocating the existing sewer. Additionally, the developer knew of the existence of the sewer across the Payless property when the developer bought the property. REvrEWED AND RECOMMENDED FOR BOARD ACTION MJ RAB SUBJECT POSITION PAPER CONSIDER REQUEST BY THOMAS PROPERTIES FOR DISTRICT PARTICIPATION IN THE RELOCATION OF AN EXISTING SEWER AND SUSPENSION OF FEES PAGE 2 OF 3 DATE Februarv 10, 1994 The developer has proposed the following resolution to this problem: . The District would contribute fifty percent (50%) of the cost to relocate the existing sewer. (The total estimated cost is $40,000. The District's contribution would be $20,000). . The developer would grant the District a sanitary sewer easement at no cost. . The District would "suspend all fees regarding inspection, plan check, system capacity charge and hookup." Staff has reviewed this proposal and supports it in part. In the interest of settling this dispute, Staff could support participation in the cost of relocation of the pipe up to a maximum contribution of $20,000. However, staff does not support the suspension of any fees. The District has never suspended or waived connection fees. To do so in this instance would be setting an unjustified precedent. The fees are unrelated to the easement matter. Staff would consider it appropriate, under these circumstances, to design the sewer relocation and, thus, eliminate the plan review fee. Further, since the proposal is to have the District pay 50 percent of the relocation cost, the inspection fee should be reduced proportionately. All other fees must be paid by the developer. The details of the District's participation will be documented in a written agreement between the parties. Staff has determined that this project is exempt from the California Environmental Quality Act (CEQA) under District CEQA Guideline Section 18.2 since it involves a minor alteration to an existing sewer facility with no increase in capacity. Board approval of this project will constitute an independent finding of agreement with this determination unless otherwise indicated. RECOMMENDATION: Approve the financial participation by the District in Job No. 5012, including: . Contributing fifty percent of the cost of relocation of the existing sewer up to a maximum of $20,000. . Preparing the design of the sewer relocation (no plan review fee will be collected). . Basing the inspection fee on fifty percent of the length of pipe which will be installed. 13078 q'R~) UDC UDC FUTURE BUILDING FUTURE PARKING U/8"VCP ~~ ROSSMOOR PARK WAY TICE VALLEY BLVD SEWER RELOCATION ;.- PROPOSED SEWER """ - ~ L ~ ~ ..(. 03 ~ o 2523-9/88 Central Contra Costa Sanitary District BOARD OF DIRECTORS PAGE 1 OF 55 BOARD MEETING OF February 1 7, 1 994 NO. 8. TREATMENT PLANT a. DATE February 8, 1994 TYPE OF ACTION SUBJECT BOARD ACCEPTANCE OF THE 1993 SELF-MONITORING PROGRAM REPORT ACCEPTANCE OF REPORT SUBMITTED BY Charles W. Batts Plant Operations Department Manager INITIATING DEPT./DIV. Plant Operations Department ISSUE: The Central Contra Costa Sanitary District's Self-Monitoring Program annual report for 1993 has been prepared for submission to the California Regional Water Quality Control Board (RWQCB), San Francisco Bay Section. This report is presented to the Board at this time for its information and acceptance. BACKGROUND: The treatment plant met all effluent requirements throughout the year except for 17 non-zero chlorine residual violations; last year, there were 31 non-zero residual violations. Eight of the 17 violations exceeded the RWaCB's concentration th~eshold, and none exceeded the duration threshold. The" RWQCB established the concentration/duration threshold approach for chlorine residual violations because they reanzed how difficult it is to have no chlorine residual all of the time; the threshold approach allows RWaCB to not take enforcement action against violations below the established threshold. The District has improved the flow measurement, residual detection instrumentation, and computer dechlorination programs to reduce chlorine residual violations. Also, once the ultraviolet disinfection facility is complete, the use of chlorine for effluent disinfection will be eliminated, which in turn will eliminate chlorine residual violations. There was a total of 14,125.5 million gallons of wastewater treated for an average daily flow of 38.7 million gallons. This flow is about 12 percent higher than in 1992 due primarily to the wet winter last year. The treatment plant produced an effluent with an annual average biochemical oxygen demand (BOD) and total suspended solids (TSS) concentration of 6 mg/L each. This is markedly lower than our National Pollutant Discharge Elimination System permit standards of 25 mg/L and 30 mg/L, respectively. The BOD and TSS removal efficiency for the plant averaged 96 and 97 percent, respectively. Solids disposal during this year involved the incineration of dewatered sludge in the District's multiple-hearth furnaces. Approximately 3,978 tons of furnace ash was disposed of. Of this, approximately 340 tons went to a fertilizer company for beneficial reuse, and the remainder went to a Colusa County landfill where it was used as the foundation layer for the final cover of the landfill. REVIEWED AND RECOMMENDED FOR BOARD ACTION INITIATI,NG DEPT.lDIV. ifMK 1302A-7/91Jtr CWB SU8JECT BOARD ACCEPTANCE OF THE 1993 SELF-MONITORING PROGRAM REPORT PAGE DATE 2 OF 55 February 8, 1994 Upon acceptance of this report by the Central Contra Costa Sanitary District Board of Directors, the 1993 Annual Self-Monitoring Program Report will be submitted to the California Regional Water Quality Control Board. RECOMMENDATION: Acceptance of the 1993 Annual Self-Monitoring Program Report. 13028-7/91 CENTRAL CONTRA COSTA SANITARY DISTRICT DISCHARGERS MONITORING PROGRAM REPORT Central Contra Costa REPORTING DISCHARGER Sanitary District DATE OF REPORT: January 31. 1994 RESOLUTION: 89-170 REPORTING PERIOD: January - December. 1 993 COMMENTS: Enclosed is the 1993 annual report. The report presents yearly totals, averages, maximum, and minimum values of Central Contra Costa Sanitary District's (CCCSD) influent, final effluent, sludge, ash, and receiving water quality parameters. Important data are also presented graphically. All sampling and analyses were performed in accordance with the Regional Water Quality Control Board's (RWQCB) Order No. 89-170 as modified on February 4, 1993. The final effluent quality remained in compliance with applicable National Pollutant Discharge Elimination System (NPDES) standards except for 17 non-zero chlorine residual violations. Only 8 of these violations exceeded the RWQCB concentration threshold, and none exceeded the duration threshold. The maximum and minimum readings of the chlorine residual violations were 13.2 and 0.2 mg/L, respectively. The total duration of the violations was approximately 2.5 hours out of 8,760 hours (0.02 percent) of continuous monitoring by on-line chlorine residual analyzers. It should be noted that CCCSD has recently begun a design of its ultraviolet disinfection facility. When fully operational, this ultraviolet facility will eliminate chlorine and consequently, it will eliminate chlorine residual violations. To the best of my knowledge, the information contained herein is true and correct. BSD:sb Attachments ~>j)Adw~ Signature, Laboratory Superintendent POD/Laboratory/DischRpt.BSD INDEX PART 1- ANNUAL WASTE CHARACTERISTICS AND LOADING Paae No. Requirement Compliance Summary, Effluent - Table 1 . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Annual Average Waste Characteristics and Loading Summary, Effluent - Table 2 2 Annual Average Waste Characteristics and Loading Summary, Influent - Waste (A-DO 1 ) - Table 3 .......................................... 3 Figure 1 - Monthly Average - Influent Flow MGD .............................. 4 Figure 2 - Influent Total Suspended Solids and BOD 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 MPN/100 ml ........................... 11 Figure 9 - Final Effluent pH ............................................. 12 Final Effluent Fish Toxicity - 96-Hour Bioassay Results - Table 4 ................... 13 Figure 10 - Final Effluent Fish Toxicity ..................................... 14 Final Effluent Toxicity to Echinoderm Toxicity - Table 5 ......................... 15 Figure 11 - Final Effluent Toxicity to Echinoderm .............................. 16 Final Effluent Toxicity to Ceriodaohnia dubia - Table 6 .......................... 17 Figure 12 - Final Effluent Toxicity to Ceriodaohnia dubia ........................ 18 POD/Self-Monitoring Report/lndex.SMR PART I _ ANNUAL WASTE CHARACTERISTICS AND LOADING (Continued) Pace No. Annual Average Waste Characteristics and Loading Summary, Effluent Nutrients - Table 7 ...................................... '. . . . . . ., 19 Figure 13 - Final Effluent Ammonia and Nitrate-Nitrogen Concentration .............. 20 Figure 14 - Final Effluent Organic Nitrogen, Nitrite Nitrogen, and Total Phosphorus Concentration .................................. 21 Annual Average Waste Characteristics and Loading Summary, Effluent - Trace Metals - Table 8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 22 Annual Average Waste Characteristics and Loading Summary, Effluent - Trace Metals - Table 9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ., 23 Final Effluent Suspended Solids, Monthly Maximum, Minimum, and Average - Table 10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 24 Final Effluent BOD, Monthly Maximum, Minimum, and Average - Table 11 ............ 25 Final Effluent Oil and Grease, Monthly Maximum, Minimum, and Average - Table 12 ............................................. 26 Final Effluent pH, Monthly Maximum, Minimum, and Average - Table 13 ............. 27 Final Effluent Settleable Matter, Monthly Maximum, Minimum, and Average _ Table 14 ............................................. 28 Final Effluent Total Coliform, Monthly Maximum, Minimum, and Average - Table 15 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 29 Final Effluent Organic Nitrogen, Monthly Maximum, Minimum, and Average - Table 16 ............................................. 30 Final Effluent Ammonia Nitrogen, Monthly Maximum, Minimum, and Average - Table 17 ............................................. 31 Final Effluent Nitrite Nitrogen, Monthly Maximum, Minimum, and Average - Table 18 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ., 32 Final Effluent Nitrate Nitrogen, Monthly Maximum, Minimum, and Average - Table 19 ............................................. 33 POD/Self-Monitoring Report/lndex,SMR . '-"-"-"'-'--'"~'~'---~._-"---------'--'--"--'">"-----_._---_."--_.._--~.__._"----,---~_..._------ PART I - ANNUAL WASTE CHARACTERISTICS AND LOADING (Continued) Pace No. Final Effluent Total Phosphorus, Monthly Maximum, Minimum, and Average - Table 20 ............................................. 34 Fina~.Effluent Un-ionized Ammonia-N, Monthly Maximum, Minimum, and Average - Table 21 ............................................. 35 Solids Handling Summary - Table 22 ...................................... 36 PART 11- RECEIVING WATER CHARACTERISTICS Requirement Compliance Summary - Table 23 ............................... 37 Total Coliform, MPN/100 ml, Monthly Maximum, Minimum, and Average - Table 24 ............................................. 38 Figure 15 - Total Coliform, MPN/100 ml, Monthly Average ....................... 39 pH, Monthly Maximum, Minimum, and Average - Table 25 ....................... 40 Figure 16 - pH, Monthly Average ........................................ 41 Dissolved Oxygen, Monthly Maximum, Minimum, and Average - Table 26 . . . . . . . . . . . .. 42 Figure 17 - Dissolved Oxygen, Monthly Average - Concentration ................... 43 Figure 18 - Dissolved Oxygen, Monthly Average - Saturation ..................... 44 Un-ionized Ammonia Nitrogen, mg/l, Monthly Maximum, Minimum, and Average - Table 27 ..................................................... 45 Figure 19 - Un-ionized Ammonia Nitrogen,m mg/l, Monthly Average ................ 46 Receiving Water Turbidity - Table 28 ...................................... 47 Figure 20 - Turbidity ................................................. 48 Figure 21 - Aerial Photograph, Receiving Water Station ......................... 49 POD/Self-Monitoring Report/lndex.SMR "___._..._...___..,*__~__,.___~_.._________._." ., ._._,_,__""_,,,~"___*_"___"O'_'_""~""'__""__""'_..~,._,'''~".,_._._~"._~..._+,-.._.~____._,._..___..._~_.__._~_.._--_._----,--,,--,~._-- ..--.....--....-...."* -----.-.-------- w -' CD < ... ... 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AVERAGE WASTE CHARACTERISTIC All) lOllDllIG SlIIWlY (Unless otherwise noted. figures in the table are average values) Influent (A-G01) YEAR 1993 PARAMETER FLOW BOO SUSPENDED SOLIDS Oil AND GREASE MONTH AVG DAilY MAX DAilY MIN DAilY MG/l KG/DAY MG/l KG/DAY MG/l KG/DAY (MGO) (MGO) (MGO) JANUARY 59.6 127.8 41.1 121 27295 155 35144 16.8 3346.8 FEBRUARY 48.5 75.4 38.6 153 27617 184 33064 31.8 4774.1 MARCH 46.2 54.3 41.1 151 26627 180 31475 37.7 6918.1 APRil 39.8 42.6 36.9 176 26144 191 28694 14.0 2046. 1 MAY 38.8 41.0 33.1 206 30435 209 30737 35.2 5265.8 JUNE 35.5 44.0 33.7 205 27270 219 29323 46.9 6301.2 JULY 35.1 38.1 32.9 183 24262 219 29076 43.0 5611.7 AUGUST 32.4 34.8 31.4 198 24398 208 25509 41.5 5141.4 SEPTEMBER 31.9 33.1 30.2 197 23769 211 25392 42.0 4951.3 OCTOBER 33.4 36.7 30.8 213 26870 195 24581 49.6 5788.0 NOVEMBER 33.9 39.1 29.1 195 24531 193 24646 33.2 4063.6 DECEMBER 35.9 45.3 32.1 178 23877 191 25731 46.3 5766.1 ANNUAL 39.2 181 26091 196 28614 36.5 4997.8 AVERAGE PODlSltMnRpt/Toble3.SMR 3 INFLUENT FLOW 130 120 110 100 90 0 80 ~ ~ 70 60 50 40 30 20 1 2 3 4 5 6 7 8 9 10 11 12 MONTH 1993 Figure 1 --- CAlLY MAXIMUM -a- CAlLY MINIMUM ... CAlLY AVERAGE 4 Figure 2 INFLUENT TSS and BOD LOADINGS 40 35 30 ~ 25 tU "'0 ........ 0) 20 ~ 0 0 0 ,... 15 10 5 0 2 3 4 5 6 7 8 9 10 11 12 MONTH 1993 IOTSS _BOD I 5 7000 6000 5000 >.4000 as "'C ......... 0) ~ 3000 2000 1000 o 1 Figure 3 INFLUENT OIL & GREASE LOADING 2 3 4 5 6 7 8 MONTH 1993 9 10 11 12 6 30 25 ::::::::. 0) E 20 Z 0 ~ 15 a: I- Z W () 10 Z 0 () 5 o o Figure 4 FINAL EFFLUENT TOTAL SUSPENDED SOLIDS CONCENTRATION and MASS EMISSION I NPDES LIMIT = 30 MG/L I 2 4 6 MONTH 1993 8 10 \.... CONCENTRATION -a- MASS EMISSION 7 1600 1400 1200 >- ca 'U - 0) 1000 ~ - Z 0 800 en en ~ 600 W en en <( 400 ~ 200 0 12 Figure 5 FINAL EFFLUENT BOD (5 day @ 20C) CONCENTRATION and MASS EMISSION 25 2000 1800 20 1600 :::::::. >- ttl 0> 1400 'U E - 0> Z ::t:. 0 15 1200 Z !;( 0 1000 en a: en I- z 800 ~ W 10 W U en z en 0 600 <( 0 ~ 5 400 ~PDES LIMIT = 25 MG/L I 200 0 0 2 3 4 5 6 7 8 9 10 11 12 MONTH 1993 \___ CONCENTRATION -a- MASS EMISSION 8 20 18 NPDES LIMIT = 10 MG/L AVERAGE 20 MG/L MAXIMUM 16 ::::::::. 0> 14 E Z 12 0 ~ 10 a: I- Z 8 W U Z 6 0 U 4 2 0 Figure 6 FINAL EFFLUENT OIL & GREASE CONCENTRATION and MASS EMISSION 11 2 3 4 567 8 MONTH 1993 9 10 1___ CONCENTRATION -a- MASS EMISSION 9 1000 900 800 >- co 700 "'C - 0> ~ 600 Z 0 500 en en - 400 ::E w en 300 en <3:: :E 200 100 0 12 Figure 7 TSS and BOD REMOVAL EFFICIENCIES 100 99 98 97 ..J ~ 96 0 ~ 95 W a: * 94 93 92 91 90 1 2 3 4 5 6 7 8 9 10 11 12 MONTH 1993 I~TSS _BOD 10 Figure 8 FINAL EFFLUENT TOTAL COLIFORM (5 DAY MEDIAN) 120 100 NPDES LIMIT = 240 MPN/1ooML 80 LT E I 0 0 L T = LESS THAN T"" 60 --- Z a.. ~ 40 o 20 2 3 4 5 6 7 8 MONTH 1993 9 10 11 12 11 7.6 7.4 7.2 I- Z ::> 6.8 :::c a. 6.6 6.4 6.2 Figure 9 FINAL EFFLUENT pH 7 NPDES LIMIT = 9.0 MAXIMUM, 6.0 MINIMUM 1 2 3 MONTH 1993 6 4 5 6 7 8 9 10 11 12 12 TABLE 4 CENTRAL CONTRA COSTA SANITARY DISTRICT SELF-MONITORING REPORT 1993 EFFLUENT CHARACTERISTICS 96-HOUR. FLOW-THROUGH BIOASSY RESULTS SUMMARY (Undiluted Sample) Final Effluent (E-001-S) MONTH DATE STICKLEBACK FATHEAD MINNOW PERCENT SURVIVAL PERCENT SURVIVAL January 19 100 100 27 100 100 February 8 100 100 March 23 100 85 April 19 100 100 May 3 70 100 June 7 85 100 July 26 85 95 August 9 95 95 September 27 100 100 October 25 100 100 November 15 92 95 December 6 100 90 ANNUAL 94 97 AVERAGE 13 ....J ~ :> a: 85 ~ en (fl. Figure 10 FINAL EFFLUENT FISH TOXICITY (UNDILUTED SAMPLE) 100 95 90 80 75 70 2 567 8 MONTH 1993 9 10 11 12 3 4 I~ STICKLEBACK _ FATHEAD MINNOW I 14 TABLE 5 CENTRAL CONTRA COSTA SANITARY DISTRICT ANNUAL SELF-MONITORING REPORT - 1993 EFFLUENT TOXICITY TO ECHINODERM Test Number 1 2 3 4 5 6 7 8 9 10 11 Sample Date 02/19 03/23 04/29 05/19 06/23 07/07 08/04 09/14 10/14 11/05 1 2108 Test Date 02/19 03/23 04/29 05/19 06/25 07/09 08/05 09/18 10/16 11/05 12/10 Test Species SP SP SP SP SP SP SP DE DE SP SP IC25. % 21.5 67 49.4 67 67 67 67 70.78 73 67 67 effluent NOEC. % 8.4 33.5 33.5 16.8 33.5 67 67 18.5 73 16.8 33.5 effluent SP = Stronavlocentrotus DUDuratus DE = Dendraster excentricus 15 Fi gure 11 EFFLUENT TOXICITY to ECHINODERM SPECIES 100 90 80 70 60 - *- - LO 50 C\I U 40 30 20 10 0 02/19 03/23 04/29 05/19 06123 07107 08/04 09114 10/14 11/05 12/08 TEST DATE '93 16 TABLE 6 CENTRAL CONTRA COSTA SANITARY DISTRICT ANNUAL SELF-MONITORING REPORT - 1993 EFFLUENT TOXICITY TO CERIODAPHNIA DUBIA Test Number 1 2 3 4 5 6 7 8 9 10 11 Sample Date 02/09 03/23 04/29 05/18 06/23 07/07 08/04 09/14 10/14 11/04 12/08 I Test Date I 02/19 03/23 04/29 05/19 06/23 07/08 08/05 09/16 10/16 11/06 12/10 IC25. % 81.3 57.0 31.3 56.3 31.6 33.9 31.3 58.9 31.3 81.3 77.9 effluent NOEC. % 75.0 50.0 25.0 50.0 25.0 25.0 25.0 50.0 25.0 75.0 50.0 effluent POD/SlfMonRp. T able6.SMR 17 Figure 12 EFFLUENT TOXICITY to CERIODAPHNIA DUBIA 100 90 80 70 60 ........ '# ......... lO 50 C\I 0 40 30 20 10 0 02/09 03/23 04/29 05/18 06/23 07/07 08/04 09/14 10/14 11/04 12/08 TEST DATE '93 18 TABLE 7 CENTRAL CONTRA COSTA SANITARY DISTRICT ANNUAL AVERAGE WASTE CHARACTERISTICS AND LOADING SUMMARY (Unless otherwise noted, figures in the table are average values) Final Effluent (E-001-S) YEAR 1993 PARAMETER AMMONIA-N NITRA TE-N NITRITE-N TOT.ORG. TOTAL NITROGEN-N PHOSPHORUS-P MONTH MG/l KG/DAY MGIL KG/DAY MGIL KG/DAY MG/l KG/DAY MG/l KG/DAY JANUARY 14.9 3073.9 0.7 125.6 0.1 18.7 2.0 369.4 3.7 685.3 FEBRUARY 16.0 2860.8 1.1 187.8 0.3 53.6 1.9 324.2 3.5 596.0 MARCH 14.4 2510.8 1.0 191.3 0.4 76.4 2.0 342.3 3.0 540.2 APRIL 18.6 2801 . 1 0.6 95.8 0.4 58.7 3.3 511.3 3.8 574.9 MAY 22.7 3238.8 0.8 124.3 0.2 26.8 2.7 386.3 3.7 542.0 JUNE 21.7 2879.5 0.4 49.4 0.5 62.8 2.5 333.6 3.5 475.5 JULY 19.8 2631.3 0.6 74.9 0.4 56.5 2.3 316.1 2.2 294.0 AUGUST 18.1 2218.0 1.4 169.6 0.6 72.5 2.5 302.9 1.8 223.9 SEPTEMBER 18.2 2186.8 1.0 119.3 0.2 30.2 2.7 328.1 1.7 208.9 OCTOBER 14.7 1859.7 2.4 306.4 0.5 65.1 2.5 311.2 2.0 250.6 NOVEMBER 16.4 2105.5 2.4 315.6 0.4 55.4 3.6 489.5 2.0 262.5 DECEMBER 20.2 2700.0 1.6 221.4 0.2 21.9 2.8 418.7 2.8 397.8 ANNUAL 18.0 2588.8 1.2 165.1 0.4 49.8 2.6 369.5 2.8 421.0 AVERAGE 19 Figure 13 FINAL EFFLUENT AMMONIA-N and NITRATE-N 25 5 4.5 20 4 3.5 ..J ..J - C} - 15 3 C} ~ ~ <i. 2.5 ill Z t- o <( ~ a: ~ 10 2 t- <( Z 1.5 5 0.5 0 0 2 3 4 5 6 7 8 9 10 11 12 MONTH 1993 1___ AMMONIA.N -a- NITRATE-N 20 FIGURE 14 FINAL EFFLUENT ORGANIC-N, NITRITE-N, and TOTAL PHOSPHORUS 4 4 3.5 3.5 ::::::. 3 .....J 0) - E 0) E Z 2.5 3 00 0 :J .... 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II - (; - - N N .... -4" '" -0 -0 .... co 0- C) - N A- C) C) C) C) C) C) C) C) C) C) C) C) C) - - - 23 TABLE 10 CENTRAL CONTRA COSTA SANITARY DISTRICT SELF-MONITORING REPORT 1993 ANNUAL WASTE CHARACTERISTIC AND LOADING SUMMARY (24-Hour Composite) Final Effluent (E-001-S) TOTAL SUSPENDED SOLIDS PARAMETER CONCENTRATION LOADING No.of mgn kg/day No. of Vio- Month MAXIMUM MINIMUM AVERAGE MAXIMUM MINIMUM AVERAGE Samples lations JANUARY 8 2 5 2010 325 1046 31 0 FEBRUARY 8 2 5 1867 312 899 28 0 MARCH 7 2. 4 1348 318 655 31 0 APRil 13 2 6 2021 309 937 30 0 MAY 10 3 7 1486 428 935 31 0 JUNE 13 4 7 1792 522 922 30 0 JULY 9 4 6 1247 510 831 31 0 AUGUST 11 4 7 1384 498 799 31 0 SEPTEMBER 12 4 7 1429 473 863 30 0 OCTOBER 9 3 6 1200 369 778 31 0 NOVEMBER 8 4 6 988 488 711 30 0 DECEMBER 11 4 7 1535 484 983 31 0 ANNUAL 365 0 MAXIMUM ANNUAL MINIMUM ANNUAL AVERAGE POD/SlfMnRpt/Table10.SMR 24 PARAMETER Month JANUARY FEBRUARY MARCH APRIL MAY JUNE JULY AUGUST SEPTEMBER OCTOBER NOVEMBER DECEMBER ANNUAL MAXIMUM ANNUAL MINIMUM ANNUAL AVERAGE TABLE 11 CENTRAL CONTRA COSTA SANITARY DISTRICT SELF-MONITORING REPORT 1993 ANNUAL WASTE CHARACTERISTIC AND LOADING SUMMARY (24-Hour Composite) Final Effluent (E-001-S) CONCENTRATION mgn MAXIMUM MINIMUM 10 3 12 2 7 2 7 3 12 4 11 5 7 3 9 4 23 4 12 3 9 4 20 4 23 BIOCHEMICAL OXYGEN DEMAND LOADING kg/day AVERAGE MAXIMUM MINIMUM 5 1723 488 5 1857 315 4 1144 317 AVERAGE 991 913 702 779 1125 978 5 1086 439 8 1666 580 7 1 51 6 649 5 996 391 6 1171 489 7 2877 469 6 1537 349 6 1186 488 8 2573 490 676 749 878 703 733 1051 ~~~~~~~~~~~~~~~~ I ............................. ii\?? 856 POD/SlfMnRpt/Table11.SMR 25 No. of Samples 21 19 14 13 11 12 13 12 12 11 13 12 14 No. of Vio- lations o o o o o o o o o o o o o TABLE 12 CENTRAL CONTRA COSTA SANITARY DISTRICT SELF-MONITORING REPORT 1993 ANNUAL WASTE CHARACTERISTIC AND LOADING SUMMARY (Grab Sample) Final Effluent (E-001-S) OIL AND GREASE PARAMETER CONCENlRA liON LOADING No. of mgn kg/day No. of Vio- Month Samples lations JANUARY 0.5 85.0 2 0 FEBRUARY 1.1 161.5 2 0 MARCH 2.7 495.6 0 APRIL 1.0 146.2 0 MAY 1.5 222.5 0 JUNE 3.8 510.4 0 JULY 1.6 208.5 0 AUGUST 0.7 83.7 0 SEPTEMBER 1.1 129.7 0 OCTOBER 1.8 209.9 0 NOVEMBER 1.6 195.9 2 0 DECEMBER 1.7 217.1 0 ANNUAL 3.8 510.4 15 0 MAXIMUM ANNUAL 0.5 83.7 MINIMUM ANNUAL 1.6 222.2 AVERAGE POD/SlfMnRptfTable 12.SMR 26 TABLE 13 CENTRAL CONTRA COSTA SANITARY DISTRICT SELF-MONITORING REPORT 1993 ANNUAL WASTE CHARACTERISTIC AND LOADING SUMMARY (Grab Sample) Final Effluent (E-001-S) pH PARAMETER CONCENTRATION No. of UNITS No. of Vio- Month MAXIMUM MINIMUM AVERAGE Samples lations JANUARY 6.9 6.4 6.6 30 0 FEBRUARY 6.9 6.5 6.7 28 0 MARCH 6.8 6.3 6.6 31 0 APRIL 6.9 6.5 6.7 30 0 MAY 6.8 6.2 6.7 31 0 JUNE 6.9 6.0 6.6 '30 0 JULY 6.8 6.4 6.6 31 0 AUGUST 6.9 6.4 6.6 31 0 SEPTEMBER 6.9 6.4 6.6 30 0 OCTOBER 6.6 6.2 6.4 31 0 NOVEMBER 6.6 6.0 6.3 30 0 DECEMBER 6.7 6.2 6.5 31 0 ANNUAL 364 0 MAXIMUM ANNUAL MINIMUM ANNUAL AVERAGE POD/SlfMnRptlTable13.SMR 27 TABLE 14 CENTRAL CONTRA COSTA SANITARY DISTRICT SELF-MONITORING REPORT 1993 ANNUAL WASTE CHARACTERISTIC AND LOADING SUMMARY (Grab Sample) Final Effluent (E-001-S) SETTLEABLE MATTER PARAMETER CONCENTRATION No. of mln/hour No. of Vio- Month MAXIMUM MINIMUM AVERAGE Samples lations JANUARY <0.1 <0.1 <0.1 31 0 FEBRUARY 0.1 <0.1 <0.1 28 0 MARCH <0.1 <0.1 <0.1 31 0 APRIL <0.1 <0.1 <0.1 30 0 MAY <0.1 <0.1 <0.1 31 0 JUNE <0.1 <0.1 <0.1 30 0 JULY <0.1 <0.1 <0.1 31 0 AUGUST <0.1 <0.1 <0.1 31 0 SEPTEMBER 0.1 <0.1 <0.1 30 0 OCTOBER <0.1 <0.1 <0.1 31 0 NOVEMBER <0.1 <0.1 <0.1 30 0 DECEMBER <0.1 <0.1 31 0 ANNUAL 365 0 MAXIMUM ANNUAL MINIMUM ANNUAL AVERAGE POD/SlfMnRpt/Table14.SMR 28 TABLE 15 CENTRAL CONTRA COSTA SANITARY DISTRICT SELF-MONITORING REPORT 1993 ANNUAL WASTE CHARACTERISTIC AND LOADING SUMMARY (Grab Sample) Final Effluent (E-001-S) TOTAL COLIFORM PARAMETER FIVE-DAY MEDIAN SINGLE SAMPLE No. of No. of MPN/100 ml MPN/100 ml Samples Vio- Month MAXIMUM MINIMUM AVERAGE MAXIMUM MINIMUM AVERAGE lations JANUARY 170 13 71 240 2 81 21 0 FEBRUARY 170 4 64 3500 <2 <268 20 0 MARCH 79 5 32 1300 5 125 23 0 APRIL 79 7 24 2400 <2 <142 22 0 MAY 130 5 38 729 2 88 21 0 JUNE 79 2 22 5400 <2 <284 23 0 JULY 23 2 8 5000 <2 <282 23 0 AUGUST 13 4 7 171 2 18 22 0 SEPTEMBER 30 2 8 1800 2 182 22 0 OCTOBER 50 2 11 2200 <2 < 114 23 0 NOVEMBER 92 2 24 1700 <2 <111 23 0 DECEMBER 80 2 26 900 2 122 21 0 ANNUAL 264 0 MAXIMUM ANNUAL MINIMUM ANNUAL AVERAGE 29 TABLE 16 CENTRAL CONTRA COSTA SANITARY DISTRICT SELF-MONITORING REPORT 1993 ANNUAL WASTE CHARACTERISTIC AND LOADING SUMMARY (24-Hour Composite Sample) Final Effluent (E-001-S) ORGANIC-N PARAMETER CONCENTRATION LOADING No. of No. of mgn kg/day Samples Vio- Month MAXIMUM MINIMUM AVERAGE MAXIMUM MINIMUM AVERAGE lations JANUARY 2.3 1.7 2.0 409.8 309.1 369.4 4 0 FEBRUARY 2.1 1.3 1.9 413.0 212.3 324.2 4 0 MARCH 2.6 1.6 2.0 404.5 280:5 342.3 5 0 APRIL 6.7 2.0 3.3 1039.2 290.8 511.3 4 0 MAY 3.4 2.1 2.7 514.9 312.1 386.3 4 0 JUNE 2.7 2.2 2.5 372.2 292.9 333.6 4 0 JULY 2.5 2.2 2.3 346.4 291.0 316.1 4 0 AUGUST 2.6 2.2 2.5 325.2 275.5 302.9 4 0 SEPTEMBER 3.0 2.4 2.7 375.3 293.4 328.1 4 0 OCTOBER 2.8 2.0 2.5 355.6 244.5 311.2 4 0 NOVEMBER 6.2 2.4 3.6 919.1 319.8 489.5 4 0 DECEMBER 2.9 2.7 2.8 468.4 369.0 418.7 2 0 ANNUAL 47 0 MAXIMUM ANNUAL MINIMUM ANNUAL AVERAGE POD/SlfMnRpt/Table 16.SMR 30 TABLE 17 CENTRAL CONTRA COSTA SANITARY DISTRICT SELF-MONITORING REPORT 1993 ANNUAL WASTE CHARACTERISTIC AND lOADING SUMMARY (24-Hour Composite Sample) Final Effluent (E-001-S) AMMONIA-N PARAMETER CON CENTRA TION LOADING No. of No. of mgn kg/day Samples Vio- Month MAXIMUM MINIMUM AVERAGE MAXIMUM MINIMUM AVERAGE lations JANUARY 22.6 7.5 14.9 6489.8 1708.1 3073.9 31 0 FEBRUARY 19.5 11.1 16.0 5097.9 2369.5 2860.8 28 0 MARCH 16.8 12.2 14.4 3028.8 1993.1 2510.8 31 0 APRIL 22.8 14.7 18.6 3479.7 2078.6 2801.1 30 0 MAY 24.7 18.1 22.7 3548.7 2800.9 3238.8 31 0 JUNE 23.9 18.8 21.7 3283.9 2471.7 2892.6 29 0 JULY 22.7 16.6 19.8 3188.4 2147.2 2631.3 31 0 AUGUST 23.4 13.2 18.1 2816.6 1651.2 2218.0 31 0 SEPTEMBER n 20.9 14.8 18.2 2557.7 1771.0 2186.8 30 0 OCTOBER 18.2 14.8 18.2 2298.2 1419.7 1859.7 31 0 NOVEMBER 21.2 10.8 16.4 3142.8 1310.2 2105.5 30 0 DECEMBER 22.8 17.7 20.2 3378.7 2127.2 2686.6 31 0 y> >y ........ > .......y>/ ..'yy ANNUAL 24.7 .< ....... ........ < 6489.8 364 0 ............. ".> > MAXIMUM > >> ...... ....... >>> 7.5 } - 1310.2 .... . ANNUAL }< > d MINIMUM ..... .1 ANNUAL > 18.0 - 2588.8 AVERAGE i POD/SlfMnRptlTable17.SMR 31 TABLE 18 CENTRAL CONTRA COSTA SANITARY DISTRICT SELF-MONITORING REPORT 1993 ANNUAL WASTE CHARACTERISTIC AND LOADING SUMMARY (24-Hour Composite Sample) Final Effluent (E-001-S) NITRITE-N PARAMETER CONCENTRATION LOADING No. of No. of mgn kg/day Samples Via- Month MAXIMUM MINIMUM AVERAGE MAXIMUM MINIMUM AVERAGE lations JANUARY 0.18 0.05 0.10 33.0 9.2 18.7 4 0 FEBRUARY 0.39 0.20 0.32 69.5 41.3 53.6 4 0 MARCH 0.70 0.19 0.45 115.5 33.4 76.4 6 0 APRil 0.73 0.20 0.39 106.3 30.5 58.7 4 0 MAY 0.34 0.10 0.18 50.6 13.3 26.8 4 0 JUNE 0.63 0.10 0.46 87.0 13.4 52.8 5 0 JULY 0.52 0.26 0.42 71.9 33.5 56.5 4 0 AUGUST 0.73 0.44 0.58 88.7 57.3 12.5 5 0 SEPTEMBER 0.36 0.15 0.25 43.0 18.8 30.2 4 0 OCTOBER 0.74 0.37 0.52 90.0 48.6 65.1 5 0 NOVEMBER 0.79 0.12 0.44 95.9 17.6 55.4 5 0 DECEMBER 3 0 ANNUAL 53 0 MAXIMUM ANNUAL MINIMUM ANNUAL AVERAGE POD/SlfMnRpt. Table18.SMR 32 TABLE 19 CENTRAL CONTRA COSTA SANITARY DISTRICT SELF-MONITORING REPORT 1993 ANNUAL WASTE CHARACTERISTIC AND LOADING SUMMARY (24-Hour Composite Sample) Final Effluent (E-OO 1-5) NITRA TE-N PARAMETER CONCENTRATION LOADING No.ot No.ot mgn kg/day Samples Vio- Month MAXIMUM MINIMUM AVERAGE MAXIMUM MINIMUM AVERAGE lations JANUARY 0.8 0.5 0.7 172.6 92.0 125.6 4 0 FEBRUARY 1.4 0.9 1.1 227.1 139.9 187.8 4 0 MARCH 1.8 0.2 1.0 346.6 31.1 191.3 5 0 APRIL 0.9 0.4 0.6 136.4 56.5 95.8 4 0 MAY 2.6 0.2 0.8 393.8 27.9 124.3 4 0 JUNE 0.4 0.3 0.4 58.6 42.8 49.4 3 0 JULY 0.6 0.5 0.6 82.2 69.3 74.9 4 0 AUGUST 1.8 1.0 1.4 212.3 130.1 169.6 5 0 SEPTEMBER " 1.4 0.6 1.0 167.7 81.3 119.3 4 0 OCTOBER 4.3 1.6 2.4 522.7 201.7 306.4 5 0 NOVEMBER 3.9 1.7 2.4 473.1 230.2 315.6 5 0 DECEMBER 2.1 1.2 1.6 262.7 188.5 221.4 3 0 ANNUAL 4.3 .......... < /i 522.7 . ........... 1<<11 50 0 F ....... ........< MAXIMUM i ... ..... ..\ 1\ ..... /< // // .......1-- ANNUAL / ............ ii 0.2 ...................... <i 27.9 ........ MINIMUM i< ......... ..... ~b<<<i ..........< Ii &: ANNUAL << 1.2 ~.<il 165.1 AVERAGE .<<:1 ..................... ............ :<:<<1 POD/SlfMnRpt/Table19.SMR 33 TABLE 20 CENTRAL CONTRA COSTA SANITARY DISTRICT SELF-MONITORING REPORT 1993 ANNUAL WASTE CHARACTERISTIC AND LOADING SUMMARY (24-Hour Composite Sample) Final Effluent (E-001-S) TOTAL PHOSPHORUS PARAMETER CONCENTRATION LOADING No. of No. of mgll kg/day Samples Vio- Month MAXIMUM MINIMUM AVERAGE MAXIMUM MINIMUM AVERAGE lations JANUARY 4.9 2.6 3.7 904.7 560.8 685.3 4 0 FEBRUARY 4.1 2.9 3.5 640.1 516.2 596.0 4 0 MARCH 3.4 1.9 3.0 616.1 295.6 540.2 5 0 APRIL 4.2 3.5 3.8 636.5 508.9 574.9 4 0 MAY 4.6 3.2 3.7 696.6 457.7 542.0 4 0 JUNE 4.1 2.5 3.5 548.7 334.6 475.6 5 0 JULY 2.9 1.0 2.2 371.5 136.8 294.0 4 0 AUGUST 3.0 0.6 1.8 361.8 76.7 223.9 5 0 SEPTEMBER 2.4 1.3 1.7 300.2 149.7 208.9 4 0 OCTOBER 3.4 1.2 2.0 447.8 149.7 250.6 4 0 NOVEMBER 2.9 1.2 2.0 385.1 145.6 262.5 5 0 DECEMBER 3.2 2.6 2.8 442.9 350.1 397.8 3 0 ANNUAL 54 0 MAXIMUM ANNUAL MINIMUM ANNUAL AVERAGE POO/SlfMnRpt/T able20.SMR 34 TABLE 21 CENTRAL CONTRA COSTA SANITARY DISTRICT SELF-MONITORING REPORT 1993 ANNUAL WASTE CHARACTERISTIC AND LOADING SUMMARY (Grab Sample) Final Effluent (E-001-S) UN-IONIZED AMMONIA-N CONCENTRATION PARAMETER mgn No. of No. of Samples Violations Month MAXIMUM MINIMUM AVERAGE JANUARY 0.04 0.01 0.02 4 0 . FEBRUARY 0.03 0.01 0.02 4 0 MARCH 0.02 0.01 0.02 4 0 APRil 0.05 0.03 0.04 4 0 MAY 0.06 0.03 0.04 4 0 JUNE 0.1 0.03 0.06 4 0 JULY 0.07 0.03 0.05 4 0 AUGUST 0.06 0.04 0.05 4 0 SEPTEMBER 0.04 0.02 0.03 4 0 OCTOBER 0.03 0.01 0.02 4 0 NOVEMBER 0.02 0.01 0.01 5 0 DECEMBER 0.03 0.01 0.02 5 0 ANNUAL 50 0 MAXIMUM ANNUAL MINIMUM ANNUAL AVERAGE POD/SlfMnRpt. Table21.SMR 35 TABLE 22 CENTRAL CONTRA COSTA SANITARY DISTRICT ANNUAL AVERAGE WASTE CHARACTERISTICS SOLIDS HANDLING SUMMARY JANUARY - DECEMBER, 1 993 I CENTRIFUGED SLUDGE (WASTE-002) I I CHARACTERISTICS !I DISPOSAL - TONS/DAY* I MONTH PERCENT TOTAL PERCENT SLUDGE ASH SOLIDS (A VG.) MOISTURE (A VG.) JANUARY 22.8 77.2 0 16.0 FEBRUARY 22.1 77.9 0 13.0 MARCH 22.2 77.8 0 11.2 APRIL 22.7 77.3 0 9.8 MAY 22.3 77.7 0 8.5 JUNE 23.0 77.0 0 9.3 JULY 22.2 77.8 0 9.0 AUGUST 23.9 76.1 0 11.1 SEPTEMBER 22.2 77.8 0 9.8 OCTOBER 21.6 78.4 0 10.7 NOVEMBER 22.1 77.9 0 10.8 DECEMBER 21.9 78.1 0 11.2 MAXIMUM 23.9 78.4 0 16.0 MINIMUM 21.6 76.1 0 8.5 AVERAGE 22.4 77.6 0 10.9 * WET WEIGHT POD/laboratoryfTable22.SMR 36 .... U l>:: .... (II o >- l>:: < .... - Z M < N (II W < ...J .... UI (II '" 0 .... U '" l>:: .... Z o U ...J < l>:: .... :z: w U M g: .... l>:: W .... < ::J: CI z > w u W l>:: >- l>:: '" :IE :IE ::J (II w U Z < - ...J a.. ~ u .... z w :IE w l>:: ::J a w l>:: (II z o - .... a.. w u >< w I&- o l>:: W UI :IE ::J z ...J '" .... 0 o .... u .... w ...... o 0 > o z .... g .... ...... o a.. w (II CI ~ .... ...... o ...J ::J .., z ::J .., .... ...... o >- < :IE l>:: .... a.. ...... '" 0 l>:: '" :IE UI .... w ...... I&- 0 z .... '" ...... ...., 0 (II u - .... (II - l>:: W .... U '" l>:: < :t: U o .... ...... o .... ...... o .... ...... o .... ...... o .... ...... o .... ...... o .... ...... o c: . co ._~ c: co ~~ co co "'2"- Ni' c: c: o on co '-N'- .0 "C :5021 o .... ...... o .... ...... o .... ...... o .... ...... o .... ...... o .... ...... o .... ...... o c: . co GI :;a ~.- ::J)( (II~ "'2- >...... oi' III Ill.... c: a ~.- CO)( "'2~ N- '- ...... ~i' .- . -4' c: ::JO o .... ...... o .... ...... o .... ...... o .... ...... o .... ...... o .... ...... o .... ...... o 00 o .... ...... o .... ...... o " o .... ...... o .... ...... o .... ...... o .... ...... o ~a )0...- )( c: 0'- E "'2- >...... oi' III 11I0 .- . 0.... c: o C:.- GI" ~f=a )(::J o ~ a "'211I._ >..c: - c.- OGlE IIIU III <-x '0 8.~ 37 .... ...... o .... ...... o .... ...... o .... ...... .... .... ...... o .... ...... o .... ...... o .. ~fiion ~:Qo ~liifii 0_ -.c "CO" ca <- .- ::J GI <-..<- :!:~2 :t: Q. o .... ...... o .... ...... o .... ...... o .... ...... o .... ...... o .... ...... o .... ...... o III .c .. :K o <- CI U .- .. co ~ '" o .... ...... o .... ...... o .... ...... o .... ...... o .... ...... o .... ...... o .... ...... o )0.. .. '- "C :a <- ::J .... <- o <- o - o u o .... ...... o .... ...... o .... ...... o .... ...... o .... ...... o .... ...... o .... ...... o o 01 c: .. co o - I&- o .- ...... o .- ...... o .... ...... o .... ...... o .... ...... o .... ...... o .... ...... o III .. III 8. GI o ~ .. .. o UI o .... ...... o .... ...... o .... ...... o .... ...... o .... ...... o .... ...... o .... ...... o ~ .... .... o c: o ~ '"' ~ 25 ~ a: . :lE ~ o 2 .. III c: <- GI .. - '" TABLE 24 CENTRAL CONTRA COSTA SANITARY DISTRICT SELF-MONITORING REPORT 1993 ANNUAL RECEIVING WATER DATA SUMMARY TOTAL COLIFORM PARAMETER MPN/100 ml No. of No. of Month MAXIMUM MINIMUM AVERAGE Samples Violations JANUARY 2400 180 1018 5 0 FEBRUARY 950 330 604 5 0 MARCH APRIL 220 18 117 5 0 MAY JUNE 140 68 96 5 0 JULY AUGUST 230 40 86 5 0 SEPTEMBER OCTOBER 130 40 81 5 0 NOVEMBER DECEMBER 1400 300 608 5 0 ANNUAL 35 0 MAXIMUM ANNUAL MINIMUM ANNUAL AVERAGE POD/SlfMnRptJT able24. SMR 38 800 E I 0 0 T"" 600 ........ Z a. :E 400 Figure 15 RECEIVING WATER TOTAL COLIFORM 5 SAMPLING STATION AVERAGE 1200 1000 200 o 2 3 4 5 6 7 8 9 10 11 12 MONTH 1993 39 POD/SlfMnRptlTable2S. SMR TABLE 25 CENTRAL CONTRA COSTA SANITARY DISTRICT SELF-MONITORING REPORT 1993 ANNUAL RECEIVING WATER DATA SUMMARY 40 I- Z ::> 7.5 I a. Figure 16 RECEIVING WATER pH 5 SAMPLING STATION AVERAGE 9 8.5 8 7 6.5 6 2 6 8 10 11 3 4 5 7 9 MONTH 1993 41 12 TABLE 26 CENTRAL CONTRA COSTA SANITARY DISTRICT SELF-MONITORING REPORT 1993 ANNUAL RECEIVING WATER DATA SUMMARY DISSOLVED OXYGEN PARAMETER mgn Percent Saturation No. of No. of Samples Vio- Month MAXIMUM MINIMUM AVERAGE MAXIMUM MINIMUM AVERAGE lations JANUARY 9.1 8.5 8.9 79 75 77 5 0 FEBRUARY 10.0 8.8 9.5 89 80 86 5 0 MARCH APRIL 9.3 9.1 9.2 93 91 92 5 0 MAY JUNE 8.2 7.5 8.0 95 86 92 5 0 JULY AUGUST 7.8 7.7 7.7 92 90 91 5 0 SEPTEMBER OCTOBER 8.9 8.3 8.7 98 91 96 5 0 NOVEMBER DECEMBER 10.2 9.9 10.1 100 98 99 5 0 ANNUAL 35 0 MAXIMUM ANNUAL MINIMUM ANNUAL AVERAGE POD/SlfMnRptlT able26.SMR 42 11 10 ::::::::.. 0> E ~ 9 t= <( a: J- ~ 8 o Z o o 7 6 Figure 17 RECEIVING WATER DISSOLVED OXYGEN 5 SAMPLING STATION AVERAGE NPDES LIMIT = 7.0 MG/L MINIMUM 1 2 3 4 5 6 7 8 9 10 11 12 MONTH 1993 43 Figure 18 RECEIVING WATER % D.O. SATURATION 5 SAMPLING STATION AVERAGE 100 NPDES LIMIT = 80 % MINIMUM FOR THREE MONTH MEDIAN 95 90 85 I- Z W (,) 80 a: W a.. 75 70 65 60 2 3 4 5 6 7 8 9 10 11 12 MONTH 1993 44 TABLE 27 CENTRAL CONTRA COSTA SANITARY DISTRICT SELF-MONITORING REPORT 1993 ANNUAL RECEIVING WATER DATA SUMMARY Un-ionized Ammonia-N PARAMETER mgn No. of No. of Month MAXIMUM MINIMUM AVERAGE Samples Vio- lations JANUARY 0.01 0.001 0.004 5 0 FEBRUARY 0.001 0.0002 0.0006 5 0 MARCH APRIL 0.002 0.001 0.002 5 0 MAY JUNE 0.08 0.001 0.02 5 0 JULY AUGUST 0.002 0.001 0.001 5 0 SEPTEMBER OCTOBEfl. 0.03 0.01 0.02 5 0 NOVEMBER DECEMBER 0.005 0.003 0.004 5 0 ANNUAL 35 0 MAXIMUM ANNUAL MINIMUM ANNUAL AVERAGE POD/SlfMnApt/T able27. SMA 45 0.025 0.02 :::::. C) E ~ 0.015 I- <( a: I- Z W 0.01 U Z o () 0.005 o Figure 19 RECEIVING WATER UN-IONIZED NH3-N 5 SAMPLING STATION AVERAGE NPDES LIMITS 0.025 MG/L ANNUAL MEDIAN 0.400 MG/L MAXIMUM 2 3 4 5 6 7 8 9 10 11 12 MONTH 1993 46 TABLE 28 CENTRAL CONTRA COSTA SANITARY DISTRICT SELF-MONITORING REPORT 1993 ANNUAL RECEIVING WATER DATA SUMMARY TURBIDITY PARAMETER NTU No. of No. of Month MAXIMUM MINIMUM AVERAGE Samples Vio- lations JANUARY 140 120 130 5 0 FEBRUARY 48 43 46 5 0 MARCH APRIL 31 20 25 5 0 MAY JUNE 26 24 25 5 0 JULY AUGUST 52 28 42 5 0 SEPTEMBER OCTOBER 16 12 14 5 0 NOVEMBER DECEMBER 14 11 13 5 0 ANNUAL 35 0 MAXIMUM ANNUAL MINIMUM ANNUAL AVERAGE POD/SlfMonRptlT able28.SMR 47 140 120 100 80 :J I- Z 60 40 20 o Figure 20 RECEIVING WATER TURBIDITY 5 SAMPLING STATION AVERAGE 1 2 3 4 5 6 7 8 9 10 11 12 MONTH 1993 48 Figure 21 49 PAGE OF 5 BOARD MEETING OF February 17, 1994 NO. 12. BUDGET AND FINANCE a. SUBJECT DATE RECEIVE THE 1 993-1994 OPERATIONS AND MAINTENANCE BUDGET REVIEW FOR THE SIX MONTHS ENDED DECEMBER 31, 1993 February 7, 1994 TYPE OF ACTION RECEIVE BUDGET REVIEW SUBMITTED BY INITIATING DEPT/DIV. Debbie Ratcliff, Controller Administrative/Finance & Accounting ISSUE: A report of the results of a comparative review of actual and budgeted Operations and Maintenance (O&M) revenues and expenses for the first six months of the 1993-1994 fiscal year is provided in this Position Paper. BACKGROUND: A comparison of actual and budgeted District O&M revenues and expenses for the six months ended December 31, 1993, and projected revenues and expenses for the fiscal year ending June 30, 1994 is summarized below: ~ anance anance Actual Budget % Projected Budget % Sewer Service 12,736,436 12,832,800 (96,364) (0.8) 25,205,200 25,063,900 141,300 0.6 Charges City of Concord 1,074,842 1,000,000 74,842 7.5 4,346,400 4,300,000 46,400 1.1 Other 998,918 851,100 147,818 17.4 1,572,400 1,423,900 148,500 10.4 Total Revenues 14,810,196 14,683,900 126,296 0.9 31,124,000 30,787,800 336,200 1.1 1,898,731 2,166,059 267,328 12.3 4,408,689 4,438,972 30,283 0.7 1,537,499 1,878,912 341,413 18.2 3,381,045 3,806,011 424,966 11.2 1,974,360 2,345,408 371,048 15.8 4,367,018 4,748,041 381,023 8.0 5,929,614 6,541,271 611,657 9.4 12,785,879 13,037,447 251,568 1.9 618,209 723,444 105,235 14.5 1,292,584 1,424,190 131,606 9.2 11,958,413 13,655,094 1,696,681 12.4 26,235,215 27,454,661 1,219,446 4.4 2,851,783 1 ,028,806 1,822,9n 1n.2 4,888,785 3,333,139 1,555,646 46.7 Projected Surplus 4,888,785 Reserve. Beginning of Year as of June 30, 1993 2,568,225 Less: Capital Transfer (3,368,000) Reserve - End of Year as of June 30, 1994 4,089,010 REVIEWED AND RECOMMENDED FOR BOARD ACTION PM I!!/i.. SUBJECT RECEIVE THE 1993-1994 OPERATIONS AND MAINTENANCE BUDGET REVIEW FOR THE SIX MONTHS ENDED DECEMBER 31, 1993 PAGE DATE 2 OF 5 February 7, 1994 Based on the results of the first six months of the 1993- 1994 fiscal year, projections have been made of revenues and expenses for the full fiscal year. District revenues are projected to total $31,124,000 for the fiscal year, which are $336,200 or 1.1 percent, higher than budgeted revenues of $30,787,800. Explanations of major variances between projected, or actual, revenues and budgeted revenues for the fiscal year and the six-month period are presented on page 3. District expenses are projected to be $26,235,215 for the fiscal year, which are less than budgeted expenses of $27,454,661 by $ 1,219,446 or 4.4 percent. Variances between projected, or actual, expenses and budgeted expenses for the fiscal year and the six month period are described by major expense categories on page 4, and benefit expense variances, explanations, and projections are detailed on page 5. RECOMMENDATIONS: Receive the 1 993-1994 Operations and Maintenance Budget Review for the six months ended December 31, 1993, and provide comments and guidance to District staff . 13028-7/91 'It g: - o (") w Z ::;) ., o Z 2i Z w a: ....en~ OZ> -0"" a:-cc ....~o en..... en -Z- Cctll. >.JW a:~:J: <()(.... t:Wc zWz ccOcc enz(") ....ccQ) ~a:Q) encc- 0>; 0....(") ccza: a:::;)W ....OID ZO:S OOW OCCO ""WWC CC::;) a:ZC ....WW Z>C WWZ Oa:W f/) :J: .... Z o :s >< en W :J: .... a: o II. ~ - 0 - ~ N 10 o,q 0 CO C'! liD _ 8 ~ ~ r::. 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