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Home My WebLink About03.a. Draft Quarterly Report Template (Handout)v-Pr ft: mi _ 4 I ENTIAL SAN CENTRAL CONTRA COSTA SANITARY DISTRICT CI P CAPITAL IMPROVEMENT PROGRAM Capital Projects Quarterly Status Report APRIL - JUNE 2024 r, '�►" r WW �s Since 1946, Central Contra Costa Sanitary District (Central San) has provided safe and reliable wastewater collection and treatment for residents in central Contra Costa County. Today we serve over 481,600 residents and 3,000 businesses in 147 square miles. Our services include supplying recycled water for parks and golf courses, providing both commercial and residential recycled water pickup programs, operating a household hazardous waste collection facility and running a sophisticated water quality laboratory. Our core mission is to protect public health and the environment, and our customers can count on us for vital services 24 hours a day, every day. Central San's infrastructure includes a 1,500-mile collection system and a treatment plant that have been well maintained, but due to their advanced ages, now require replacements and upgrades. Already, the equipment at the plant and in the system have been extended well beyond their typical useful life due to responsible and robust maintenance practices. Some of the collection system facilities are over 100 years old, and many are over 50 years old. The treatment plant facilities were primarily constructed in the 1970s and some are now at the point where maintenance alone cannot maintain reliable performance. These recommended extensive replacement and upgrade projects will provide for continued reliable operation. Central San funds an extensive Capital Improvement Program (CIP) designed prepare, maintain, and enhance Central San's assets; meet regulatory requirements, accommodate the community needs; and protect public health and the environment. Capital improvement are construction or renovation activities that add value to Central San's fixed assets (pipelines, budlings, facilities, and equipment) or significantly extend their useful life. This report summarizes the CIP's progress and highlights accomplishments from April to June 2024. Project Highlight PROJECT NAME Project Description, Benefit, Project Milestones, Progress, and other key achievements. How the CIP Delivers Projects The CIP uses Design -bid -build model. Design -bid -build is a commonly used delivery method in which an owner first procures a professional engineering firm to prepare detailed design plans and specifications for a project. The owner then solicits bids for the project and procures a general contractor to construct the project based on the design completed by the engineer. Appr°ve Confirm Authorization APPMe Authorization Authorization Substantial Final Project Protect To Proceed Preliminary to Bid To Award Completion Acceptance Altemative Design Conceptual Preliminary y Project ConcepI Deiailed I Bid & Award II construction Post- Nternatiue Construction & Soaping (Technology) Adesign r Design Design li� contract ,AcommissicningiNt construction II C I P PROJECTS This update outlines accomplishments for the past quarter in two sections: Projects in and Projects in Construction. For projects in construction and post -construction phases, the CIP uses cost and schedule baselines monitored through the District's Capital Project Management System. Projects in Design • Collection System Program Pumping Station Project 1 Design Progress during this period Project 2 Project 2 Design Progress during this period • Treatment System Program Walnut Creek/Grayson Creek Levee Design Progress during this period Steam and Aeration Blower Systems Renovations Project 2 Design Progress during this period UV Disinfection Replacement Project 3 Design Progress during this period • General Improvement • Project 1 Project 1 Design Progress during this period • Project 2 Project 2 Design Progress during this period • Recycled Water Program • Filter Plant & Clearwell Improvements — Phase 1 B Project 1 Design Progress during this period • Project 2 `Project 2 Design Progress during this period HOW ARE WE DOING? Key Performance Indicators (KPIs) Year -to -Date: LEGEND 2 *GRAVITY SEWERS TOe. SturIIfSawtws-K.--ihuI%-v-w41Li, 'WIdLedi0 the ntxi �4 K{+}:p mAarolhrr la7 n:: ry: .: :rm7lifed volin then m I Din 25veers. 1 4 NIIIIIIIIIIIII' . w, . I - 3 PUMP STATIONS �11;t�4 _k Rump StMiwd-5Y 1d: HPIV Ilm uls Eo She pueT "y':;Im�alrim1wdWrihtrKCIfr,Cyou. ShtI»gN Or"L'L'"" IN Irlldbiidlim cr the ianiew, Mellhti rhlse foul pmjeLls rclrcseul apgwirsdAdF9Fu1[be dP }S nyhon VL UMP slit on rCO.yN + _ S N E'+ 1E{C�EffNTREAr`L }A L 1 1 Y L L AREA SERVICEL \E l {iRAYII}5l wLll} \j I .WAiTEWLTER COLLECTIOH & SAN RAN TREir+ TNT iNP I IMISEHOI F+ liAQ-"NL'Ai5. w+.SE F I M IWI s LILwnL % PROW IDEU WMTE—TW TrLln7.uIr lr nnll 14FIri- irKWE; WCOk7RACT ■ I Ell I W 11 ILm:11 0111LY y ! PL vC NTPwL 5r HE ME &iAXT IO% GULLEHNG. TREATMENT fLhr•E S: HI 1W FAC tLITY vrMLL'UTIMr iywirA} OPrKATKN5 FkCILITY Page 6 of 13 Capital Projects Quarterly Report I APR — JUN2024 1 SAFETY 0 Incidents EXPENDITURE On Target SCHEDULE On Target 3 Pumping Station Upgrades - Ph 2A 2 q.000.000 D,000.000 t0,000,Om 88888880 088- 0 Incidents EXPENDITURE On Target SCHEDULE On Target 4 Walnut Creek Sewer Renovation Purpose: To address aging Purpose: To replace and renovate infrastructure and reliability needs at the small diameter sewers within the Fairview and Maltby Pumping Stations. city of Walnut Creek and unincorporated Walnut Creek. The project includes replacing corroded steel dry pits with new wet wells at the Fairview and Maltby Pumping Stations, along with backup generators, instrumentation, flow meters, pumps, valves, gates, all piping and concrete, major electrical controls per Arc Flash Study recommendations, worn control panels with seismic bracing, and enhancing safety devices such as gas detection systems and eye wash stations. SAFETY 0 Incidents EXPENDITURE On Target SCHEDULE On Target Project Budget: $24.7 million Expected Completion Date: MMM YYYY Update: During this period, The Walnut Creek Sewer Renovation — Phase 16 Project will replace or rehabilitate up to approximately 10,000 feet of small diameter sewers located in both public right-of-way and easements. This project includes a creek crossing. SAFETY Project Budget: $6.4 million • Expected Completion Date: MMM YYYY 0Incidents Update: EXPENDITURE During this period, On Target SCHEDULE On Target Page 7 of 13 Capital Projects Quarterly Report I APR — JUN2024 Projects in Construction - Treatment Plant Q AGING WRASTRUCTVRE O CAPACITY O REGULATORY @5SUSTAINABILI1 reeu�P �atmFm�p,�a:mmeRma mm :EAR <a,ia+�m:amtln�mmr:.a.lmp m..i:m�upg�:�,a.b,w sa�eo�ainom�e gel.lr�n..to:.pla.:n..�,:.m.«emaz: n. e�ld wo ��.•� t s«enmya.tRlu Ren.bilhstive Replaxdanr,amea�.nxmaam:wenapunw f uV neWnmem:Replateulna+iolntli:mf:mion.ynern r 1 nmu�wl.a W,�.e.,,:..+< ""`"�'"`f'e"n`u'�.rnm �� a � x'dW�1'aedRMH py.evPwaealyno:nmreevuvmemamiheTuen,a.nmpeem u.wnlamsyaumwpa,e«Rema<a geamblmvearnma�e�m�amrea.t.pua lase:opmligcanv::wmrenv. � s w .� al,x .�b�rw.a rea a„mor..�a e=xa�:�aom�l oua.waal.5l:.i o...a a I.. a vrn�vwr Up�af:•e:fml�u � irtret:��rrm'�'�'•ml x e.aeaen�litwxeo a w+�woe v..1V�atie�sa F x.kY:edaed ltHlnexmr:xroavMumpkne.M r�„ate; NAHIila[tM1emeM[nexu:cr�l panty an 9uorsp .�Mizp bervrtendarnmc e9.steH Ya n,icaebeel��xwe:al:�_e�morm.uElv.w low,f.m.e..asamH�.:o��moe<o:nam��.ama:nwe<,:.,tn�fds.:em:.. vwamarYav�hrbadfrymnc Atl acer,,.totne,.er.,,�,m..nm�„ w,.ma v mrel r Y Claa.rcall Rnfl*oeam.nx Reolacetlevwzll linrvedre¢anaNftwzt;atltl xwgcXlenver. f aVMyevwRa: adtlltm'IIR Wmwm WtlwmelaNawaANfrel �wnt� �..tn, ACN'A lwval ltO b�lYilircshnmeit:Hun�q�eaai%NemiulyenN�d tl•.�n bad wamwaretNvntM1e MNIn9 Wsinzaw m ReRav�Nevyaea YM1brp:olealM 6�aaM1.e�z --aatAlllmpnovenrerna e tvf�.arnt e.r.ba..rnkmr�ia�n:�.iewe�.Rw...md.nd�..po.. p..b�+s�e„v. . e ..p'n M. It Bll[11NbeveIL3:Impkmmtnrhlnilremwal upgradabmtluteammWa�� m�.laol...:e �m,Baf�Odtl w.aea ¢�M1vpv 11 HSM'MvelvRp ledY4:�dM119nslrnglM1was1e f16Wlttcelvin9fadMy wtlM1 •advicen re t tnea napnospxwusn irtlryas[M unrK• 1~_ np pam sm m-Rm.efaottlesto remo:z Iwwabw[n.yvver..esdaror.a.d.• catrsmvaamE mvpYq ConcevltEGl.• gepa rmagHmeRegCC:elvw•ewp:wttl M1ome SQD-vm: am:m e.tnt,ewd 19 � �eplx;e me mwvs rumdlnnuem pumpaxuClmmdtLlCmbttn.waaum 16 - mn�ant p�mprwwmt,K.mFt mm�. � sr..e1 ppssNn Page 8 of 13 Capital Projects Quarterly Report I APR — JUN2024 Solids Handling Facility Improvements - Ph 1A Purpose: To rehabilitate and replace, the sludge dewatering centrifuges, cake pumps, and furnace air pollution control equipment. M The project involves replacing the wet scrubber with a Venturi scrubber ,�y��i_� ■'M�r capable of waste heat boiler bypass, replacingOntrifuges and cake pumps, upgrading furnace burners, replacing electrical and control systems to accommodate new equipment, and performing seismic upgrades in Solids Phase 1 B. ?ct Budget: $41.5 million acted Completion Date: MMN Y ate: OI \ During this period Aeration Basins Diffuser Replacement - Ph 1 Purpose: To replace the existing aeration tanks' diffusers to increase aeration system performance and a; optimize the activated sludge process. MMW The project involves mechanical rehabilitation, concrete repairs, and seismic improvements to extend the life of aeration basins and diffuser systems. It includes replacing all diffusers and some air piping, optimizing sludge process, upgrading controls for better air flow, and replacing large underground aeration valves with accessible concrete structures. Phase 1 covers two aeration basins, with Phase 2 covering the remaining two. Seismic upgrades are included in Phase 1. Project Budget: $13.5 million Expected Completion Date: MMM YYYY Update: ➢ During this period, Projects in Construction — General Improvements Vehicle Replacement Program FY2O16-26 Purpose: To provide safe and cost-effective vehicle replacement. The following vehicles are being considered in FY 2023-24: '/2 Ton 4x2 Truck (2), 'h Ton 4x4 Truck (6), 3/4 Ton 4x2 Truck (1), Vactor Hydro -Vac and Water Recycler Unit (1), Midsize 4x2 Truck (1) and Electric Vehicle upgrades as available Project Budget: $7 million Expected Completion Date: MMM YYYY Update: Electric Vehicles Charging Infrastructure - Ph.1 Purpose: To install electric vehicle charging stations (EVCS) infrastructure at Central San's facilities. This project, the first of three phases, will extend electrical infrastructure at Central San's Martinez campus and Pumping Stations. It will install charging stations at the Laboratory, Annex Building, Warehouse, and Collection System Operations, with the potential to include Moraga and San Ramon Pumping Stations if funds allow. The following phases are planned for 2030 and 2035. Project Budget: $1.3 million Expected Completion Date: MMM YYYY Update: L $150 $130 $110 $90 $70 $50 $30 $10 -$10 Program Budget Performance Summary Sewer Construction Fund (SCF) Budget, Commitments and Financial Capacity 1 1 1 i 0 I 1 � 1 ! 1 1 i53.75i i i i { j j iif7 j i 1 i i i 1 1 1 i 1 22/23 23/24 24125 1=1Approved and Projected Budget per FY Fiscal Year IMIAdditional capacity with contemplated rate increases (not vet approved) rMJRernainingcapacitywithexistingrates M� Committed already (contracted) Existing SCf Revenue (includes growth in non-55C revenue but no SSC rate increases) $150 1 I $13❑ N 1 1 44 I $11a 1 � $90 I 1 i I i 1 $70 I 1 I 1 j 1 I 95 $54 IIt 1 1 1 1 I 1 1 1 $30 l 1 1 1 i $10 25/26 -$10 Page 11 of 13 Capital Projects Quarterly Report I APR — JUN2024 r� $150 $140 $130 $120 $110 $100 $90 $ao $70 %0 $50 $40 $30 $20 $10 July Fiscal Year 2023-2024 Program Budget Performance Summary Budget to Actual Spending Trend Sewer Construction Fund (in millions) $149.6 $J2G1 # r r r r $130.3 r iJ rr �J.A � xc �r r + #rt August September Dunker Nrnember December January Februar; March April #Budget Target!90}5 of Budget} —F Projected May lure 0 Capital Projects Quarterly Report I APR — JUN2024 Page 12 of 13 M6101101IN IQ Glossary Beneficial Use When a C17project rs eornplete rrt accordance with cont occupied by the City, it has achieved beneficial use. A renewable energy source produced by the breakdown of sewage waste M" the "absence of oxygen. Biogas is composed of methane, carbon dioxide and small amounts of hydrogen sulfide. Treated sewage sludge. ndS ..... Open acreage used by wastewater treatment plants as a buffer between plant operations and nearby communities. Bufferlands minimize odor and operational impacts on plant neighbors and often serve as wildlife habitat. The process of assuring that all systems and components of a facility, building or plant arc design € 6stalied, tested, operated and maintained according to the owner's requireme Dissolved air flotation thickener to=i ks is pj e-ir flotation, or DAF, is a treatment p clarifies wastewater by removing suspended rrtMer. uted control system. A computerized system that allows treatment plant staff to remotely monitor and control treatment processes. EIR Environmental Impact Report. A public docume"N"Tdtjuired under the California Environmental rmit program regulates point sources such as pipes and other conveyances that discharge Ilutants into water. In California, NPDES permits for the discharge of treated wastewater ued by the Regional Water Quality Control Boards. Polymer Preliminary The preparatory wastewater treatment stage, in which influent passes through headworks, which Wastewater Water that enters the sanitary sewer system for treatment at a pollution control plant ............................................................................................... Wastewater Cake Sludge that is compressed after dewatering. WAS Waste -activated sludge, or the excess quantity of bacteria and microbes removed from the secondary wastewater treatment process. Page 13 of 13 Capital Projects Quarterly Report IAPR — JUN2024