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HomeMy WebLinkAboutMinutes - June 25, 2019 SSLODI CITY COUNCIL SHIRTSLEEVE SESSION CARNEGIE FORUM, 305 WEST PINE STREET TUESDAY, JUNE 25, 2019 A. Roll Call by City Clerk An Informal Informational Meeting ("Shirtsleeve" Session) of the Lodi City Council was held Tuesday, June 25, 2019, commencing at 7:04 a.m. Present: Council Member Nakanishi, Mayor Pro Tempore Kuehne, and Mayor Chandler Absent: Council Member Johnson, and Council Member Mounce Also Present: City Manager Schwabauer, City Attorney Magdich, and City Clerk Ferraiolo B. Topic(s) B-1 Receive Information Regarding White Slough Water Pollution Control Facility Update (PW) Public Works Director Charlie Swimley provided a PowerPoint presentation regarding White Slough Water Pollution Control Facility (WSWPCF) update. Specific topics of discussion included WSWPCF location, WSWPCF property, treatment plant, project history, 2016 corrosion repair project, corroded concrete channel repair, replacement of 24-inch aeration pipe, repairs to Digester No. 3 cover, 2017 SCADA upgrade project, arc-flash study, SCADA system upgrade, recycled water pond storage project, recycled water permit for new storage pond, visual examples, and planned capital projects. Mr. Swimley introduced Mark Kindelberger with Schneider Electric to explain the Energy Service Company (ESCO) procurement process, something the City of Lodi has not yet participated in but could benefit greatly from in the form of savings. Mr. Kindelberger explained that his division with Schneider Electric operates as an ESCO, which provides energy solutions including designs and implementation of energy savings projects. The California Government Code allows municipalities to enter into contracts with such providers, and the projects pay for themselves with the savings. Both the design and construction of a project is contracted to a single entity, which makes the design to build delivery time faster because there is an intense collaboration between the City and the partners in the design phase. The project would be offered for a fixed bid with no change orders, and because it is a single entity, his company would be responsible for everything and the City would have a guarantee of utility savings that could be used to service any debt on the project. There are three phases: design; construction; and customer support, measurement, and verification. He stated that, between the design and construction phase, if the City determined it could not accomplish a viable project, it could cancel the project, and the City would only be accountable for any design to date fees incurred. In response to Council Member Nakanishi, Mr. Kindelberger stated that, if the City borrows money for the project, the City would have a guaranteed utility savings that could pay for the debt. Mr. Swimley added that the City's plan is to pay for the project on a pay-as-you-go basis. In response to Mayor Pro Tempore Kuehne, Mr. Swimley stated the savings would be roughly $100,000 a year. Council Member Nakanishi questioned if this savings would offset rate increases. Mr. Swimley stated that installation of the blower project will help the City control rates better and reduce the overall operations of the facility. Mr. Schwabauer added that it will help provide cash for the remaining improvements once the payback period is ended. 1 C. Comments by Public on Non-Agenda Items None. D. Adjournment No action was taken by the City Council. The meeting was adjourned at 8:00 a.m. ATTEST: Jennifer M. Ferraiolo City Clerk 2 White Slough Water Pollution Control Facility Update Shirtsleeve Meeting June 25, 2019 Outline •Facility Overview •Project History •Planned Capital Projects •Questions WSWPCF Location Discharge Point BISHOP CUT WSWPCF Property Municipal Wastewater Industrial Wastewater Recycled Water Storage Pond Treatment Plant Biosolids Lagoons Secondary Clarifiers Primary Clarifiers Sludge Digesters Tertiary Filters and UV Disinfection Secondary Aeration Basins Project History •July 2016 – Corrosion Repair Project •May 2017 – SCADA Upgrade Project - Arc Flash Study - SCADA System Upgrade - Predesign of Future Improvements •April 2018 - Recycled Water Pond Storage Project - 300 AF Recycled Water Storage Pond - Title 22 Tertiary Water - Proposition 84 Grant Funded (75%) •Scope of Work: –Repaired corroded concrete channels upstream of aeration basins; –Replaced corroded steel 24-inch diameter aeration pipeline –Repaired corroded steel cover of Digester No. 3 –Installed water level sensors in storage pond –Installed temperature sensors on digester heat-exchanger piping •Schedule – July 2016 to September 2017 •Construction Cost - $1,989,872 2016 Corrosion Repair Project Corroded Concrete Channel Repair Typical channel following cleaning and sand-blasting, prior to repair. Channel following repairs and application of both epoxy-mortar and polyurethane coatings. Replacement of 24-Inch Aeration Pipe Pipe that was replaced. New concrete-encased stainless steel pipe. Repairs to Digester No. 3 Cover Corrosion created holes and pitted areas in the interior of the steel cover. Steel plates were welded over the holes and pitted areas and the cover was coated with chemical-resistant epoxy coating. •Scope of Work –Arc-Flash Study –SCADA System Upgrade –Investigate UV System Communication Problem –Preliminary Design of Future Improvements •Schedule – May 2017 to October 2019 •Cost - $770,010 2017 SCADA Upgrade Project •Arc-flash is not shock (current flow through a body). •Arc-flash is physical energy (heat, pressure wave, sound) released by a short circuit; an arc-welder is a controlled arc-flash. •Arc-flash study complete. •On-going safety effort. Arc-Flash Study Arc-Flash Study •Findings - Existing electrical equipment is aging, spare parts difficult to find. - Arc-flash exposure risk varies throughout the plant. •Actions taken - Arc-flash exposure data base. - Settings on equipment protective devises modified to reduce arc flash risk. - Conducted OSHA certified training for WSWPCF staff. •Scope of Work: –Replace existing / aging server with pair of modern / redundant servers in dedicated server rack –Replace existing obsolete graphical control system –Replace obsolete graphics. •Benefits: –Increased reliability – regulatory compliance –Simplify treatment process troubleshooting and plant diagnostics –Increased data acquisition –Increased security –Allows for wireless support (tablets, etc.) for monitoring and process control SCADA System Upgrade •Scope of Work: –Construct 300 acre-ft. Storage Pond –Install pump station and conveyance piping –Install electrical instrumentation –Modify existing structures •Benefits: –Minimizes discharge to Delta –Expands recycled water opportunities –Benefits groundwater recharge – Sustainable Groundwater Management Act (SGMA) •Schedule – April 2018 to July/August 2019 •Cost - $5,125,000 Recycled Water Pond Storage Project Recycled Water Pond Storage Project Recycled Water Pond Storage Project Recycled Water Permit for New Storage Pond •December 2018: Regional Water Board issued the City a permit under the Recycled Water General Order –Storage and use of high-quality recycled water (Disinfected Tertiary) in the new pond –Providing recycled water for offsite, public use –Specific offsite uses not yet identified, but could include: •Landscape irrigation •Construction activities •Dust control •Crop irrigation •Aeration Blower Upgrade Project –Install 2 new variable speed blowers –Energy savings –Increased process control –Cost $750,000 –FY 2019/20 •Considering Energy Service Company (ESCO) procurement Planned Capital Projects •South Electric Building Replacement Project –Relocate existing electric building –Upgrade obsolete electric infrastructure –Building components reaching useful life –Coarse screen and septage receiving improvements –Aeration diffuser improvements •Schedule: Design FY19/20 > 20/21 = $1.5M • Construction FY21/22 > 23/24 = $13.5M •Cost: $15,000,000 Planned Capital Projects •Fan Press Installation Project –Install additional fan press •Schedule: Construction FY23/24 •Cost: $1,000,000 Planned Capital Projects Visual Examples Visual Examples Planned Capital Projects FY 19-20 FY 20-21 FY 21-22 FY 22-23 FY 23-24 Irrigation Improvements $750,000 Electrical/Screen Design $900,000 $600,000 Electrical/Screen Construction $1,000,000 $7,000,000 $5,500,000 Miscellaneous Future Projects $100,000 Cloth Filter Media Replacement $30,000 $30,000 $30,000 $30,000 $30,000 Primary Chain Flights $40,000 $40,000 $40,000 NCPA Maintenance Generator $150,000 $150,000 $150,000 $150,000 $150,000 Emergency Generator Maintenance $30,000 $30,000 $30,000 $30,000 $30,000 Compliance Studies and Reports $200,000 $200,000 $200,000 $200,000 $200,000 Upgrade Blowers $750,000 Aeration Diffuser Replacement $500,000 Pond Gates $15,000 $15,000 Band Screen Rebuild $75,000 Primary Skimmers $20,000 Secondary Scum Trough Drives $20,000 DWP-H2 Replacement $15,000 $15,000 Fan Press Replacement $1,000,000 $2,215,000 $1,120,000 $2,200,000 $7,960,000 $6,950,000 Planned Capital Projects FY 24-25 FY 25-26 FY 26-27 FY 27-28 FY 28-29 FY 29-30 Irrigation Improvements $1,000,000 $1,750,000 Cloth Filter Media Replacement $30,000 $30,000 $30,000 $30,000 $30,000 $30,000 Primary Chain Flights $40,000 $40,000 $40,000 NCPA Maintenance Generator $150,000 $150,000 $150,000 $150,000 $150,000 $150,000 Emergency Generator Maintenance $30,000 $30,000 $30,000 $30,000 $30,000 $30,000 Compliance Studies and Reports $200,000 $200,000 $200,000 $200,000 $200,000 $200,000 UV Design/Replacement $450,000 $4,000,000 DWP-H2 Replacement $15,000 Unspecified Treatment Plant Rehab $1,000,000 $1,000,000 $1,000,000 $1,425,000 $900,000 $6,160,000 $1,450,000 $1,410,000 $1,450,000 Questions???