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Home My WebLink AboutEngineering & Operations MINUTES 08-07-24Page 2 of 21 LCENTRAL SAN REGULAR MEETING OF THE CENTRAL CONTRA COSTA SANITARY DISTRICT ENGINEERING & OPERATIONS COMMITTEE MINUTES Wednesday, August 7, 2024 8:30 a.m. Committee: Chair Mike McGill Member Florence Wedington BOARD OF DIRECTORS: MARIAHN LAURITZEN President MICHAEL R. MCGILL President Pro Tem BARBARA D.HOCKETT TAD J PILECKI FLORENCE T WEDINGTON PHONE: (925) 228-9500 FAX.- (925) 372-0192 www.centralsan.org Staff. - Katie Young, Secretary of the District Greg Norby, Deputy GM — Engineering & Operations (joined during Item 3.a.) Philip Leiber, Deputy GM — Administration Edgar Lopez, Capital Projects Division Manager Nathan Hodges, Senior Engineer (left after Item 3.a.) Sasha Mestetsky, Senior Engineer (left after Item 3.b.) Kevin Randeni, Associate Engineer (left after Item 3.b.) Nancy Molina, Associate Engineer (left after Item 3.a.) Stacey Durocher, Administrative Services Assistant Call Meeting to Order Chair McGill called the meeting to order at 8:34 a.m. 2. Public Comments None. August 15, 2024 Regular Board Meeting Agenda Packet - Page 170 of 189 Page 3 of 21 Engineering & Operations Committee Minutes August 7, 2024 Page 2 3. Items for Committee Recommendation to Board *a. Review draft Position Paper to award a construction contract in the amount of $665,676 to Mesa Energy Systems, Inc., the lowest responsive and responsible bidder for the headworks chiller replacement, District Project 100010; authorize the General Manager to execute the contract documents subject to submittal requirements; and consider the project exempt from the California Environmental Quality Act (CEQA) Mr. Lopez provided an overview of the draft Position Paper included in the agenda materials. He stated that this project will include replacement of the headworks chiller and all applicable components, as well as upgraded controls to improve accessibility. The total project cost will be approximately $950, 000. As detailed in Attachment No. 3 (included in the agenda materials), the planning, design, construction contract, contingency, consultant and staff time are included in the cost. Staff is recommending that $875, 000 of the total project cost be transferred from the Capital Improvement Contingency account. Mr. Lopez will include additional information on the contingency account to demonstrate the available funds and previous allocations for the fiscal year. He also stated that the balance remaining after the proposed transfer will be approximately $605, 000. The contingency account will be replenished with remaining funds from projects that are closing or other projects identified to reduce future carryforward. Member Wedington raised concerns about the contingency account balance being so low and commented that she would appreciate seeing the attachment to show the balance. Mr. Lopez stated that three sealed bids were received and opened on July 16, 2024. After a thorough technical and commercial review of the bids were completed, it was determined that Mesa Energy Systems, Inc. (Mesa) was the lowest responsive and responsible bidder at $665, 676. It was noted that the lowest bid received was approximately 58 percent above the engineer's estimate and was due to higher than anticipated costs of the chiller, controls and associated electrical work. In response to Chair McGill's inquiry regarding the low engineer's estimate and its review, Mr. Lopez responded that it was attributed to a number of factors such as the cost of the equipment and the electrical. Further discussion ensued regarding the lessons learned and future planning on how to address industry -wide supply chain issues, increasing equipment costs, and other factors that would impact the District's estimates. August 15, 2024 Regular Board Meeting Agenda Packet - Page 171 of 189 Page 4 of 21 Engineering & Operations Committee Minutes August 7, 2024 Page 3 Mr. Lopez recommended proceeding with the award as the District is incurring monthly equipment rental costs and rebidding the project would not achieve any costs savings. COMMITTEE ACTION: Recommended Board approval. *b. Review draft Position Paper to consider the Buchanan Lift Stations Abandonment and Sewer, District Project 100041 (Project) exempt from the California Environmental Quality Act (CEQA) Mr. Lopez provided an overview of the draft Position Paper included in the agenda materials. He stated that this Project involves removing the North and South Buchanan Lift stations as well as replacing or rehabilitating approximately 5,000 feet of small diameter sewers, abandoning sewers, constructing maintenance access structures and other related sewer work. The outcome of this work will be a full gravity sewer system conveying the majority of the flow to the 96-inch A -line interceptor. It was noted that this Project was not associated with the Contra Costa Transportation Authority (CCTA) A -Line project and was installed as part of a joint project done with the City of Concord years ago. Member Wedington inquired about the size of the new pipe. Mr. Randeni stated it was a 12-inch pipe. She also expressed concern about the project being exempt from CEQA and asked how far the new alignment was going. Mr. Lopez confirmed it was a renovation project that included abandoning and installing new sewers to serve existing customers at the same locations. Further discussion ensued regarding the existing easements and the location of the new alignment. In response to Chair McGill's inquiry regarding the National Environmental Policy Act (NEPA), Mr. Mestetsky replied that the airport brought up the subject and is reviewing the documents, but a response has not been received yet. Indication from the FAA is that it may not be required, however, it has not been confirmed. Mr. Norby added that staff is aware that the standard language being used for CEQA approval on capital projects has been used and reviewed by past legal counsel and staff will work with the new legal counsel to review and refresh the language and workflow process that is assigned to the various capital projects regarding environmental clearance. He added that for the Buchanan project, the categorial exemption is very broad and is appropriately applied. August 15, 2024 Regular Board Meeting Agenda Packet - Page 172 of 189 Page 5 of 21 Engineering & Operations Committee Minutes August 7, 2024 Page 4 Chair McGill asked that the Committee recommendation on the Position Paper state that the Committee recommended Board approval after extensive discussion and questioning. In response to Chair McGill's question regarding the timing for this project, Mr. Lopez replied that staff is behind on the bidding process. The project cannot be bid unless the District has easements. He also said that in the past the District was allowed to move mains and sewers to different locations as long as they were for the same purpose and not adding the infrastructure for future service expansion. Mr. Randeni provided the Committee with a visual overview of the project with a graphics board. He pointed out where the project was located and explained the scope of work in further detail. Member Wedington asked if the lift stations will be abandoned. Mr. Lopez stated yes. Member Wedington requested that legal counsel review this item prior to Board receipt. COMMITTEE ACTION: After extensive discussion and questioning the Committee recommended Board approval with approval from legal counsel. 4. Other Items *a. Receive verbal update on Capital Projects Division Quarterly Report on Capital Projects, active consultant contracts, change order log, and schedule of bids and awards. Mr. Lopez provided the Committee with a rough draft of the quarterly report template for the Capital Improvement Program (CIP). He discussed in more detail the various sections of the template. Member Wedington asked if CDM Smith (CDM) was preparing the template and whether staff populates it. Mr. Lopez confirmed that staff does populate the template and stated that CDM is assisting the District with the first phase until it is up and running. Chair McGill inquired about the dates that the report will be done. Mr. Lopez stated that it is based on the fiscal year and a quarterly basis. Member Wedington established that the first quarter will be July through September, and asked if the report would be ready in October. Mr. Lopez replied that October was the goal to have a final draft ready. August 15, 2024 Regular Board Meeting Agenda Packet - Page 173 of 189 Page 6 of 21 Engineering & Operations Committee Minutes August 7, 2024 Page 5 Chair McGill asked how the quarterly report will relate to the annual report. Mr. Norby stated that staff is intending to have an annual lookback discussion with the Committee to review the prior fiscal year program to go over lessons learned and incorporate observations and takeaways and is aiming to start this format in September for Fiscal Year (FY) 2023-24. He explained that the quarterly reports are intended to provide more detailed updates as major projects are progressing. The data will be included in the annual report which will focus on the complete picture such as the cumulative financial picture as well as the qualitative aspects like the resource forecasting, lessons learned and what can be done to address problems differently. COMMITTEE ACTION: Received the update. 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 None. COMMITTEE ACTION: Received the list and provided input to staff. 7. Future Scheduled Meetinas Wednesday, September 4, 2024 at 8:30 a.m. Wednesday, October 2, 2024 at 8:30 a.m. Wednesday, November 6, 2024 at 8:30 a.m. 8. Adjournment — at 10:34 a.m. *Attachments August 15, 2024 Regular Board Meeting Agenda Packet - Page 174 of 189 N i 0 150 300 FEET PROJECT AREA CONSTRUCTION ACCESS ROUTING / �,I • i CENTRALSAN 00"D == � S I., CENTRALCONM' '(4-r �(kv,-Tj:4Y CLARIFIERS P o CLARIFIE� O� O AERATION TANKS SOUTH BASIN 0 Page d of 21 Item 3.a. Handout NORTH BASIN HEADWORKS CHILLER REPLACEMENT DISTRICT PROJECT100010 O �� e IEADWORK� BUILDING Attachment 1 Page 8 of 21 Vi�CENTRALSAN BUCHANAN LIFT STATIONS (Item 3.b. Handout) ABANDONMENT AND SEWER (DP100041) i 13B7-M13 13$7-M10" . 13B7-M9 a ; 13B7-M11 0 2 3C7-M2 13C7-M6 13C7-M7 13C7-M4-13C7-M8 13C7-L59 13C7-M5" 1 ,.. 47C1-M7 to • 47C7-M2 'sv `47C7-M3 ves-9 47B7-M51 - �47C1-M_y r. _ �y _ r • „� 4761-M45 r 47C1-M7 - d 47C1-M14� - 1 �-a+ 47C1-M17 47C1-M1,3 '47C1-M8 47C1-L52 - yir 47B1-M46 47C7-M23 - - A - 7f+1-MA8 47C1-M\9 �I- - ti47C1-M 12 O - 47B1-M47 47C1-M19 - 47C1-M191�1 ptt ' R i 47C1-M20 i1 -- i 47C1-M16 1 �{ 47B1-M61 `1 1` � 47B1-M41 I b 47B1-M42 / Buchanan Fields Goli Course >� =L' ��x/� ry ,Y k f� f O M y.- y �": g - L. - Ft, ,r -1 , M ea��eery _ _,y v ,' ' > • �'�a n - �,„ 4rx i oonzon`150 300 ir /'3 • 4 6 Feet August 15, 2024 Regular Board Meeting Agenda Packet - Page 176 of 189 v-Pr tti mi _ 4 I �Dc"ENTRAL SAID CENTRAL CONTRA COSTA SANITARY DISTRICT CI P CAPITAL IMPROVEMENT PROGRAM Capital Projects Quarterly Status Report APRIL - JUNE 2024 W RIEW - iMmabF.- e y .YIYi. r t" ... -- a W- 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 CIP 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 (KPls) Year -to -Date: LEGEND Page 14 of 21 � 2 �R"ITY SEWERS r�O h. 0 LI 5turllkSewtws- BC. --ihsol5sisr wllLi, 'i,ple[edin the ntxi.4 Ve'}15 wd.) lhrc 1a7 miry:. :rrr pKW MARTINEZ volin the nm I D to 20 wus. 1 CENTRAL SAN SERVICE AREA {i r.Ariir ie wxn, h_hu sTATL-Dm kvAsTEwmg COLLECTIUH ei TREir+ TNT iNP I IDkI5EHQI F+ iiAQ-"NL'Ais weSI F I I* M s Lkwn.es PRL}VIDEU WMTE—TW TrLI T.uIr lr Amla Wive iEKWE; WCONTRACT ■ I EI IW 11 ILm:11011LY vC NTPwL 5r HEAMn &iAXT IN% GII.LEHNci. TREATMENT p1hhE&HI1W FlC eLITY vrMLL'UTnUIz iTST[M5 OprKATKN5 FkCILITY 4 DANVILLE NO 3 PUMP STATIONS pump 5ta11uM-5n 1,1:'HPIL urc uls Go She POT alms mr ltynmd wrihe rKxl fMC you. She lrrgN pcjeLUale the Iehdbikulim cr the ianiew, Mellhl,. wAnEi, Amp.vditWroFA1d5RL-P:i W5 rhea fow pmjwL mpn wnl appnwin dr95%Ld[Le ' 53D-13f honVLpumpFlltonrCE.yN 1A Page 6 of 13 �N Capital Projects Quarterly Report I APR — JUN2024 yn=- Dgust 15, 2024 Regular Board Meeting Agenda Packet - Page 182 of 189 Page 15 of 21 1 SAFETY 0 Incidents EXPENDITURE On Target SCHEDULE On Target 3 Pumping Station Upgrades - Ph 2A 2 9mm k OOf IX4 F otcoOo tr iAtaAta � I ' IL ! R�EER��EE��i •'. �waur 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 0 Incidents 40 EXPENDITURE On Target SCHEDULE On Target Project Budget: $6.4 million Expected Completion Date: MMM YYYY Update: During this period, Page 7 of 13 Z-1q Capital Projects Quarterly Report I APR — JUN2024 '--August 15, 2024 Regular Board Meeting Agenda Packet - Page 183 of 189 Page 16 of 21 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 i uVneWnmem:Replateulna+iolntli:mf:mion.ym.n r 1 nmu�wl.a W,�.e.,,:..+< ""`"�'n`va"�`u'�.rnm �� ' � xs.fr+paedFMH py.evPwaealyno:nmreevuvmemamiheTuen,a.nmpeem u.wnlamsyaumwpa,e«Rema<a geamblmvearnma�e�m�amrea.t.pua lase:opmligcanv::wmrenv. 1 5 w .a xex .x�nifiyea rse x�mx..�b e:pd�e.. mm�l oua.waal.'p Im o...a a I.. uvleef:.ezfmll'Iw� Ihrer:trcwmtnMee:stnl k a Vrn�vwf oftM1euNisw e��kllnwMo z Po+'vgoa e v..1V�atie�sa F x.kY:edaed ltHlnexmr:xroavMumpkne.M r�„ate; NAHIila[tM1emeM[nexu:cr�l an panty 9uorsp Hizp bervrtendarnmc e9.steH Ya nuiez•"E beeInaatweul:Fea-eirem low,f.m.e..asamH�.:o��moe<o:nam..ama:nwe<,:.,tn�fds.:em:.. vwamarYav�hrbad5rymnc Atl acer,,.totne,.er.,�,rn..nm�„ w,.ma v mrel r Y Claa.rcall Rnfl*oeam.nx Aeolacetlevwzll 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 'vf�.arn' e.r.ba..rnkmr�ia�n:�.iewe�.Raw.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 napnospxwusn irtlryas[M unrK• , tnea 1~�_ np pam sm m-Rm.efaottlesto remo:z Iwwabw[n.yvveJ..tsdaror...d.• catrsmvaamE mvpYq ConcevltEGl.• gepa rmagHmeRegCC:elvw•ewp:wttl M1omeSRO-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 77 � I - mow } may' � •-. +µ` „�9 w Page 8 of 13 Capital Projects Quarterly Report I APR — JUN2024 Ai]gust 15, 2024 Regular Board Meeting Agenda Packet - Page 184 of 189 7of21 5 0 Incidents EXPENDITURE I On Target SCHEDULE On Target 7 Piping Renovation - Phase 10 Purpose: To inspect, rehabilitate, and replace above -grade and below -grade piping and related systems at the treatment plant. The project will replace piping, valves, pumps, potable water tanks, hypochlorite feed systems, electrical controls, and other equipment identified by the Asset Management Program and Operations and Maintenance staff Project Budget: $5.6 million Expected Completion Date: MMM YYYY Update: SAFETY EXPENDITURE SCHEDULE 0 Incidents On Target 0 On Target 0 Incidents EXPENDITURE On Target SCHEDULE On Target 8 Electric Blower Improvements Purpose: To increase reliability for aeration blower operations and increase capacity during emergency outages or planned PG&E events. The project includes demolishing the existing electric blower system, installing three new high -efficiency electrical blowers with associated electrical and controls, and constructing the installation with piping, air intake filters, electrical, cooling systems, and maintenance platforms. Project Budget: $14.1 million Expected Completion Date: MMM YYYY Update: SAFETY EXPENDITURE SCHEDULE 0 Incidents 0 On Target On Target Page 9 of 13 Capital Projects Quarterly Report I APR — JUN2024 ve �; tgust 15, 2024 Regular Board Meeting Agenda Packet - Page 185 of 189 Projects in Construction — General Improvements Vehicle Replacement Program FY2016-26 Purpose: To provide safe and cost-effective vehicle replacement. L The following vehicles are being considered in FY 2023-24: '/2 Ton 4x2 Truck (2), '/2 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 36 1 1 1 1 1 44 1 1 1 0 ! ! ! 1 1 1 1 I I 1 I 1 I i53.75� 1 1 i i I 1 i i 1 ! r r 1 F 1 1 ! 1 F 1 F I F 1 1 1 1 F 1 1 1 1 ! r 1 22/23 23/24 24J25 1=1Approved and Projected Budget per FY Fiscal Year IMIAdditional capacity with contemplated rate increases (not vet approved) rMJRernainingcapacitywithexistingrates N� Committed already (contracted) Existing SCf Revenue (includes growth in non-55C revenue but no SSC rate increases) 25/2b Page 19 of 21 $150 $130 $110 $90 $70 $50 $30 $10 -$10 Page 11 of 13 —1-1111-9 Capital Projects Quarterly Report I APR — JUN2024 'Clgust 15, 2024 Regular Board Meeting Agenda Packet - Page 187 of 189 Page 20 of 21 r S36o S140 S130 S120 silo S1o0 $90 $So s70 $60 s60 s47 s30 s20 slo JuYy WI-0 Fiscal Year 2023-2024 Program Budget Performance Summary Budget to Actual Spending Trend Sewer Construction Fund (in millions) $J26.1 e' �r August September Dunker Nrnember peremher January Februar; March April #Budget Target!90}5 of Budget} —F Projected $149.6 May lure Capital Projects Quarterly Report I APR — JUN2O24 ve �; Dgust 15, 2024 Regular Board Meeting Agenda Packet - Page 188 of 189 Page 12 of 13 TO BE UPDATE pied by the City, it has achieved beneficial use. renewable energy source produced by the breakdown of sewage waste in, the absence iogas is composed of methane, carbon dioxide and small amounts of hydrogen sulfide., ated sewage sludg Open acreage used by wastewater treatment prants as a''buffer between plant operatio'his and " ' nearby communities. Bufferlands minimize odor and operational impacts on plant neighbors and often serve as wildlife habitat. process of assuring that all systems and components of a facility, building or plant arO igned, installed, tested, operated and maintained according to the owner's requireme Dissolved air flotation thickener tanks. Dissolved air flotation, or DAF, is a treatment process that clarifies wastewater by removing suspended matter. . . .........:.:.:.t)istributed control system. A computerized system that allows treatment plant staff to remotely monitor and control treatment processes. EIR Environmental Impact Report. A public documerott eq wired under the California Environmental der the federal Clean Water Act, the National Pollutant Discharge Elimination System (NPDES) rmit program regulates point sources such as pipes and other conveyances that discharge Ilutants into water. In California, NPDES permits for the harge discof treated wastewater are .....................::...::..:.....................::...::...:......................::....:.::.........................::.:..:...................:..:...._ u e d by the Regional Water Quality Control Boards. Polymer Preliminary The preparatory wastewater treatment stage, in which influent passes through headworks, which then through chlorinated tanks to become 99% clean. Wastewater Water that enters the sanitarysewers stem for treatment at a pollution control plant. Y P P................:.:::.:::.................:::.:::.::: 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 I APR — JUN2024 August 15, 2024 Regular Board Meeting Agenda Packet - Page 189 of 189