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HomeMy WebLinkAboutEngineering & Operations MINUTES 01-19-21 Page 2 of 30 CENTRAL SAN CONTRACENTRAL • DISTRICT 5019 • REGULAR MEETING OF THE BOARD of TAD PI ECK TAD J PILECKI CENTRAL CONTRA COSTA President SANITARY DISTRICT DAPIDR. WILLIAMS President Pro Tem ENGINEERING & OPERATIONS BARBARA D.HOCKETT COMMITTEE MARIAH N LAURITZEN MICHAEL R.MCGILL MINUTES PHONE: (925)228-9500 FAX- (925)372-0192 Tuesday, January 19, 2021 www_centraLsan_org 11:00 a.m. (All attendees participated via videoconference) Committee: Chair David Williams Member Mariah Lauritzen Staff. Roger S. Bailey, General Manager Katie Young, Secretary of the District Philip Leiber, Director of Finance and Administration (joined during Item 4.b.) Steve McDonald, Director of Operations Jean-Marc Petit, Director of Engineering and Technical Services Danea Gemmell, Planning and Development Services Division Manager Melody LaBella, Resource Recovery Program Manager Edgar Lopez, Capital Projects Division Manager Nitin Goel, Senior Engineer Sasha Mestetsky, Senior Engineer Heather Ramamurthy, Management Analyst (joined during Item 4.b.) Amelia Berumen, Senior Administrative Technician 1. Notice This meeting was held in accordance with the Brown Act as in effect under the State Emergency Services Act, the Governor's Emergency Declaration related to COVID-19, and the Governor's Executive Order N-29-20 issued on March 17, 2020 that allowed attendance by Board Members, District staff, and the public to participate and conduct the meeting by teleconference, videoconference, or both. The agenda included instructions for options in which the public could participate in the meeting. February 4, 2021 Regular Board Meeting Agenda Packet- Page 70 of 104 Page 3 of 30 Engineering & Operations Committee Minutes January 19, 2021 Page 2 2. Call Meeting to Order Chair Williams called the meeting to order at 11:00 a.m. 3. Public Comments No public comments. 4. Agenda Items a. Review Committee Charter as set forth in Board Policy No. BP 013 - Standing Committee Protocols, Guidelines and Charters COMMITTEE ACTION: Received the Charter. Before proceeding to Item 4.b., Mr. Petit announced that Member Lauritzen would need to leave by Noon. He stated that since the meeting agenda included lengthy content, he proposed deferring Item 4.d. to a future meeting and condensing the presentations for the remaining items to save time. The Committee concurred. b.* Receive update and overview of the Capital Improvement Program (CIP) Mr. Petit provided a broad overview of the attached updated presentation that included Central San's service area, facilities, and the four capital programs. Chair Williams asked Mr. Petit for clarification on a few matters, to which the following responses were provided: 1) Connection Return of Cost: When a customer(e.g. local commercial properties) requests connection to a Central San recycled watermain in Zone 1, staff refers to Board Policy BP 019 (Recycled Water) to determine if the return on the cost meets its criteria. However, he added that several recipient customers have paid for the cost of the connection. 2) Collection System Pipe Evaluation: The evaluation of pipes is based on using a national database scoring system and adapted to a District- based scoring system. All sewer main repairs/replacements use CCTV exploration in which the contractor is given the methodology, and, in turn, they provide a score on the segment surveyed. Member Lauritzen noted that when comparing the last CIP to this CIP, project costs have increased nearly three times. She asked if needed repairs were delayed and thus accounted for the budget increase versus February 4, 2021 Regular Board Meeting Agenda Packet- Page 71 of 104 Page 4 of 30 Engineering & Operations Committee Minutes January 19, 2021 Page 3 the previous Ten-Year CIP. Mr. Petit responded that the infrastructure is getting older and the maintenance staff has done a great job prolonging much of the equipment's useful life and replacement need. He explained that just because a project is listed in the Master Plan, it does not mean it will necessarily be completed within that 10-year span and that the scope of the project has yet to be fully defined. The Master Plan provides a road map, and staff monitors the equipment and condition assessments to avoid any emergency situations of foreseeable failures. He continued that some tasks must be done systematically, and the budget is updated accordingly. He said the deferred update of Item 4.d. on the Steam and Aeration Blower System Renovation project was a prime example. Chair Williams added that he was comfortable with Central San's practices for capital improvements and how these strategies roll up to the Master Plan. From a policy perspective, he added that the Board's desire and motto is to intelligently get all the life out of an asset before it is replaced and before it reaches an emergency level. He opined that staff does a good job using the tools at their disposal and providing the Board with a plan to continue forward. Lastly, Chair Williams said it was important to note that although it is always preferred to avoid emergencies, such instances do occur. He stated that the Board would not reprimand staff for not foreseeing emergency situations. Furthermore, he opined that if the latter were to occur, it would only push staff to be ultra-conservative; therefore, creating a ripple effect to replace equipment before its time, leading to an increase in rates, etc. He stated that emergencies will occur from time to time, but good planning minimizes them to the best extent possible. COMMITTEE ACTION: Received the information. C.* Receive update on Fiscal Year 2020-21 Mid-Year Capital Improvement Budget Mr. Lopez provided an overview of the attached modified presentation. He highlighted that the actual expenditure figures shown on slide 2 are considered draft amounts as many invoices are still being processed; therefore, the current totals may seem lower than in past updates. Based on his estimate, the actual expenditures through December are closer to the low 30 percentile. He continued that expenditures can be somewhat seasonal due to rain delays; however, this year has been beneficial with good weather. February 4, 2021 Regular Board Meeting Agenda Packet- Page 72 of 104 Page 5 of 30 Engineering & Operations Committee Minutes January 19, 2021 Page 4 In response to Member Lauritzen's question to clarify his reference to new structures at the Moraga Pump Station, Mr. Lopez stated that the Moraga site does not have grinders and part of the project is to add large concrete structures to house the grinder addition. He said that it is a difficult site to construct and that the contractor had to dig an extensive, deep excavation so that the structures are at a low line of sight for residents. The project also included a large (permitted) dewatering effort near a creek. Mr. Lopez opined that the Solids Handling Facility Improvements Project exemplified staff's response to Member Lauritzen's earlier inquiry about deferred projects. This project is a complex effort under development for many years. The maintenance staff has assisted the planning duration by maintaining the equipment for as long as possible. Mr. Lopez advised that staff intends to review an announcement to advertise for bid and other components of this project with the Committee at the next meeting. The bid period will be longer than usual due to the contract documents' complexity; construction is expected to last three to four years. Ms. Gemmell added that the State Revolving Fund loan agreement for $171.3 million in funding is estimated to be received in April. Chair Williams inquired how the City of Concord is charged for their portion of the operations and capital expenditures, and what means staff uses to ensure a true-up of costs. Ms. Gemmell replied that her division provides the City with a budget forecast and then bills based on actual costs, noting that the Treatment Plant, Recycled Water, and portions of the General Improvement programs are based on their flow proportionate share. Mr. Bailey summed up by saying that Central San fronts the cost and is reimbursed after the invoices are paid. COMMITTEE ACTION: Received the update. d. Receive update on Steam and Aeration Blower Systems Renovation, District Project 7349 COMMITTEE ACTION: Due to time constraints, this item was postponed to a future meeting. e. Receive update on Recreational Vehicle (RV) Dumping Station, District Project 7375 COMMITTEE ACTION: Due to time constraints, this item was postponed to a future meeting. February 4, 2021 Regular Board Meeting Agenda Packet- Page 73 of 104 Page 6 of 30 Engineering & Operations Committee Minutes January 19, 2021 Page 5 5. Announcements None. 6. Suggestions for Future Agenda Items a. Receive list of upcoming agenda items and provide suggestions for any other future agenda items COMMITTEE ACTION: Received the list. 7. Future Scheduled Meetings Tuesday, February 9, 2021 at 11:00 a.m. Tuesday, March 23, 2021 at 11 :00 a.m. Tuesday, April 20, 2021 at 11:00 a.m. Ms. Young inquired whether the Committee would be able to conduct the future meetings listed for the typical two-hour time allotment or whether additional meetings are needed to accommodate the Committee's availability. Member Lauritzen stated she would prefer more meetings to accommodate her preference for shorter meeting durations. Chair Williams said he had no issue with scheduling additional Committee meetings. Ms. Young stated she would be in contact with the Committee to schedule additional meeting dates. 8. Adjournment— at 11:59 a.m. * Attachment February 4, 2021 Regular Board Meeting Agenda Packet- Page 74 of 104 Page 7 of 30 Item 4.b. (Handout) Updated Presentation �r CAPITAL PROJECTS UPDATE AND OVERVIEW ENGINEERING AND OPERATIONS COMMITTEE JANUARY 99, 2029 Jean-Marc Petit, P.E. Director of Engineering and Technical Services p Pumping sFeoons [—'service area Pittsburg s.rnr srstvm — rile—plor Line Iz 24•) a aI[InB2' / Trunk Line(2 til'Q4') F—M ain ' Y Ou[fail w.- N C "�� Concord Clayton r ........�..�. riretla��— ' reek �` rr, •, : --,.;� •� _ gar �1 � i_L Z J� .cob b � f ., . Califomia ban n r' DETAIL AREA 2 February 4, 2021 Regular Board Meeting Agenda Packet- Page 75 of 104 1 Page 8 of 30 LE CIO Oakland O aamoo N - • - jCCCSDPu­1na5W1on. - � � lF'.�.ce�isaMia`v'aeNu Pumping Stations 3 CENTRAL SAN MARTINEZ PLANT SITE dta LIL February 4, 2021 Regular Board Meeting Agenda Packet- Page 76 of 104 2 Page 9 of 30 CENTRAL SAN'S RECYCLED WATER PROGRAM (RETAIL AND WHOLESALE) • Central San also owns and operates a recycled water w"�. RH� distribution system called "Zone 1" • In 2020, Central San sold 213.9 million gallons of recycled water L.I.y.11. • Wastewater Treatment Plant uses about 1.5 million gallons per day of recycled water • Auto Truck Fill Station • Residential Fill Station _ 1 5 „�.. DETAIL A.Y...ltl�hn AREA r^e ... rw.M[Ww'JnHM. mrd.e rrvaw.... 1 al.�b.n 1 rr w t _ ti -O o 14 miles of pipe I ......... t i I�CENTPAL SAN ,�� .� ' ccc so Reereba 1•Rler srelem V � 6 February 4, 2021 Regular Board Meeting Agenda Packet- Page 77 of 104 3 Page 10 of 30 5'4 �►.� LOOKING AT THE FUTURE CENTRAL SAN IA � COMPREHENSIVE WASTEWATER MASTER PLAN - - COMPLETED 2017 - 1 THIS PROJECT COORDINATED SEVERAL MAJOR MASTER PLANNING EFFORTS ModelDynamic Collection Treatment Collection Plant Master System Plan • • Wastewater Master Plan (CWMP) - 1 8 February 4, 2021 Regular Board Meeting Agenda Packet- Page 78 of 104 4 Page 11 of 30 CWMP MAJOR DRIVERS =0000� Descriptions 1 Aging Infrastructure Maintain performance and reliability of existing assets to ensure reliable treatment of wastewater Increase capacity and redundancy of existing facilities to 2 Capacity accommodate wastewater flows(wet weather)and loads. Projects that would be required to accommodate planned growth are not included in the CIP Reliably comply with regulatory requirements that are designed 3 Regulatory to protect human health and the environment&Plan for anticipated future regulatory requirements Minimize life-cycle costs,maximize benefits,and achieve 4 Sustainability economic stability through optimization,resiliency,resource recovery,and energy projects 1 9 CWMP EXECUTIVE SUMMARIES Public Outreach Summary Technical Executive Summary EXECUTIVE SUMMARY 77 _ Technical Executive Summary COMPREHENSIVE WASTEWATER MASTER PLAN ' 10 February 4, 2021 Regular Board Meeting Agenda Packet- Page 79 of 104 5 Page 12 of 30 • Comprehensive Wastewater Master Plan Share this page v � Since 1946,Central Son hos provided sole and reliable wastewater 000 CENTRAL$AN collection and treatment for residents in central Contra Costa County. Today we serve nearly half a million residents and over 3 000 '+y businesses in 145 square miles.Our servires include supplying This item appears in EXECUTIVE SUMMARY recycled water for parks and golf courses,providing holh commercial Plans&Reports S S_ W and residential recycled water pickup programs,operating a household hazardous wasle collection facility and running a _ K--.- = sophisticated water quality lahoratory.flur core mission is to protect public health and the environment,and our customers can muni on us for vital services 24 hours o day,every day. mafL Download Executive Summary — _ 11 Download Technical Summary COLLECTION SYSTEM MASTER PLAN FINDINGS AND RECOMMENDATIONS February 4, 2021 Regular Board Meeting Agenda Packet- Page 80 of 104 6 Page 13 of 30 DESCRIPTION OF SEWER SYSTEM • 145 square mile service area v • Large collection system • Over 1,540 miles of gravity sewers • 37,000 pipe segments Asset Value=>$2.9 Billion • 31,000 manholes Pla • Pipe Diameters: 4" — 102" $8261M • Oldest Pipe: 1913 (108 years old) Clay $888 M • Pipe Materials: Concrete, Clay, Plastic, and Metal MetallicO Concrete • 18 Pumping Stations $162 M, 974M Million(M) C�I .11 13 70.00 E Ch. 60.00 ■SP �Lined-DIP *DIP CAS 50.00 ■ABS ■HDPE ■PVC ■PC aaoo C •CMLC ■CML y ■Lined-RCN 30.00 ■RCP ■Lined-AC :AC lined-VCP 20.00 ■VCP 1960-PreserR ..�...� � ■VCP Pre-1960 10.00 �1 hI I I Age{as of 20 161 ~~ _ / 14 February 4, 2021 Regular Board Meeting Agenda Packet- Page 81 of 104 7 Page 14 of 30 SEWER REPLACEMENT AND REHABILITATION PROGRAM OVERVIEW i System is Aging - Optimized Rehabilitation & Pipe Conditions Range from Good to �_'}.r; _ Replacement Forecast Very Bad Condition �Y �� ti ��� Forecasted CIP: • 64%of pipes are ~` — —$99M in 5 years <50 years old — —$720M in 20 years • CCTV'd 90%of pipes: Forecast will be • 2%-"Very Bad" updated routinely for Developed Data - CIP updates Supported Risk Model o InfoMaster®to i Confirm Sewer Needs Uses ESRI backbone 3� Uses LOF and COF to calculate risk i LOF based on Central laid Ili�ll�lbl hu. n l6,lIIII�_ �.II .Il.=_, ,. i ,, ,., San CCTV and cleaning -- data I 15 CALCULATING RISK FOR COLLECTION SYSTEM ASSETS ,r P b isk roba ility rConsequence (F'Busline:IR � of Failure of Failure lExposure (POF) (COF) L (BRE) L�- -�A L- -�A 'A :HighVelocities •Capacity Bottlenecks •Blockages/Overflows Risk Class Example Capital Action Age Hospitals,Schools,Etc. E :Age •Industry High Standard Priority in CIP/Biannual Soil Type Population Density Operational Frequency ®•Railroads/Fault Lines ®•Street Paying Medium Low Priority in CIP/1 In 5 Years Operational Frequency Pipe Failure History Traffic Disruption :Pipe •Community Relations Law 1 in to Years Operational Frequency -Proximity to creeks and Negligible Waitfor a problem to arise •Various techniques water bodies ' 16 February 4, 2021 Regular Board Meeting Agenda Packet- Page 82 of 104 $