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HomeMy WebLinkAbout07.d.1)a) Minutes-Engineering & Operations Committee 7-6-167.d.1)a) Central Contra Costa Sanitary District i t and'tI eIi lx Committee: Chair Paul Causey Member Tad Pilecki 501. fn r,fPlace Al . CA 3 SPECIAL MEETING OF THE CENTRAL CONTRA COSTA SANITARY DISTRICT ENGINEERING & OPERATIONS COMMITTEE MINUTES Wednesday, July 6, 2016 8:00 a.m. 2nd Floor Conference Room 5019 Imhoff Place Martinez, California Staff: General Manager Roger S. Bailey Deputy General Manager Ann Sasaki Director of Engineering and Technical Services Jean -Marc Petit Capital Projects Division Manager Edgar Lopez Plant Maintenance Division Manager Neil Meyer (left after Item 4.) Information Technology Manager John Huie (left after Item 6.) Senior Engineer Clint Shima (left after Item 4.) Senior Administrative Technician Cindy Granzella 1. Call Meeting to Order Chair Causey called the meeting to order at 8:01 a.m. 2. Public Comments None. BOARD OF DIRECTORS: TAD J. PILECKI President PAUL H. CAUSEY President Pro Tem MICHAEL R. MCGILL JAMES A. NEJEDLY DAVID R. WILLIAMS PHONE: (925) 228-9500 FAX: (925) 676-7211 www.centralsan.org 3. Review draft Position Paper for professional design services for the Server Room Relocation Project, District Project 8243 Mr. Lopez reviewed the draft Position Paper, and explained that the proposed consultant team, Pacific Design Group (PDG), is the best fit for the project. PDG is proposing a team with both the Information Technology (IT) and Engineering components needed for the project. Engineering & Operations Committee Minutes July 6, 2016 Page 2 Member Pilecki asked for clarification on the type of work being done. Mr. Huie responded that it was for pre -design and design work related to relocating the servers from the Plant Operations Building basement to a location on the ground floor. He explained that a location has been selected; however staff will continue to review other location options in order to reduce the physical space required for the equipment. Member Pilecki requested that the scope of work, i.e., pre -design and design only; be clarified in the Position Paper. COMMITTEE ACTION: Reviewed and recommended Board approval with requested changes. 4. Review draft Position Paper to award contract for the Fairview and Maltby Pumping Stations Pump Rebuild, District Project 5941 This item was taken immediately following Item 6. Mr. Shima stated that the bid opening would be taking place the following day on July 7, 2016. Chair Causey stated that without the bid(s), he could not recommend Board approval. Member Pilecki concurred. Member Pilecki asked why this project was not considered an Operations and Maintenance (O&M) project. Mr. Lopez responded that this project was discussed last year when staff repaired the pump at Maltby. District Counsel advised that the pump rebuilds be bid and the work was forwarded by Operations to Capital Projects for implementation. In general, projects above $15,000 are not considered routine maintenance work and can be bid by Capital Projects. Chair Causey saw no need to move funds from one project to another. Member Pilecki mentioned that there are several ways to handle the budget and also suggested using funds from the other stated project, District Project (DP) 8429 if needed, to avoid transferring funds or possibly creating confusion. Staff indicated that they would review and update the Position Paper to clarify the source of funding. Chair Causey expressed concern about replacing all pumps at the same time, and asked if a risk assessment has been completed. He stated that this does not seem to fit with reliability centered maintenance (RCM). Mr. Meyer stated that RCM is being implemented at the District and coordinated with the Asset Management project but that several factors are reviewed when determining the need for replacement: cost, repetitive work, hours, routine maintenance, as well as risk threshold and failure modes. He explained that there is a correlation with age, risk, and consequence. Staff explained that last year one of the pumps at Maltby required immediate repair as it had failed. Based on current condition assessments performed for the Comprehensive Wastewater Master Plan (CWMP), it is recommended to Engineering & Operations Committee Minutes July 6, 2016 Page 3 rehabilitate the remaining pumps to provide continued reliability of the pumping stations. These pumping stations are operated in series starting with Martinez, Fairview, and then Maltby. A pump failure would adversely impact the Martinez Pumping Station and upstream collection system facilities, and could potentially cause severe sewer overflow events in Martinez, especially during the wet weather season. COMMITTEE ACTION: Reviewed and provided input to staff. 5. Receive update on IFAT-2016 (Internationale Fachmesse fur Abwasser Technik or International Trade Fair for Sewage Technology), an international conference which is the World's Leading Trade Fair for Water, Sewage, Waste and Raw Materials Mr. Petit recently attended IFAT 2016, which took place in Munich, Germany from May 30 to June 3, 2016. IFAT is the World's Leading Trade Fair for Water, Sewage, Waste and Raw Materials Management. IFAT was celebrating its 50th anniversary this year, having started in 1966. The District did not pay for the travel expenses for the trip. He reported to the Committee on several key items. IFAT is an International trade fair with a global impact. This year it featured 3,097 exhibitors from 59 countries, approximately 138,000 visitors from over 170 nations, and 230,000 square meters (2.476 million sq. ft.) of exhibition space. The theme this year was centered on harvesting and producing energy from waste. Overall, he explained that there are several factors driving the technology in Europe, including the high cost of energy, limited space, and denser populations. There were also numerous exhibits on optimized membrane filtration and new ideas for sludge handling and management. Economic necessities and new legal regulations are dictating the course in the international water and sewage industry. IFAT had many exhibits demonstrating how the environmental technology sector is reacting to the latest challenges. Other lessons learned from IFAT 20-16, including stricter sewage guidelines, rapid population growth and bottlenecks in the water supply, mean that the market for membrane bioreactors (MBR) is growing more and more quickly. The membrane growth procedure allowing water to be reused is gaining in importance, particularly in urban areas. Most large wastewater treatment plants in Germany rely on egg shaped anaerobic digesters followed by fluidized bed incinerators for solids disposal and energy recovery. Most plants also import fat, oil, and grease (FOG) to their digesters for additional biogas productions. In addition, most plants have solar panels and windmills for alternative renewable power source. Engineering & Operations Committee Minutes July 6, 2016 Page 4 When it comes to biosolids disposal using agricultural treatments, only polymers where the sludge and the individual constituents will have decomposed by at least 20 percent within two years will be permitted for use in sludge treatment in Germany from 2017. Synthetic, polymeric flocculants currently do not satisfy these requirements. Starch -based polymers could be an alternative. Many companies are now making equipment to produce biopower from waste, noting that, in general, one metric ton of food waste can produce 600 to 800 kWh of energy. Germany, France and Great Britain have many biopower plants that are both municipal and privately operated. Nereda is a product of Royal Dutch Haskoning DHV. They feature Aerobic Granular Biomass Technology. Nereda technology is based on using natural selection processes where biomass is growing as granules with excellent settling properties. In granular biomass, three process zones are present in different layers inside the granular particles, with diffusion connecting the reaction zones, thus allowing simultaneous anaerobic, aerobic, and anoxic conditions to co -exist in the granules, resulting in excellent biological nutrient capabilities. The District is now evaluating pilot testing Nereda at its plant. Seepex now offers split case stators to allow quick and easy replacement of the rotor without dismantling the piping. The District owns and operates numerous sludge pumps made by Seepex and could consider refurbishing them with this new feature. Swiss company Egger makes an IRIS valve for fine tuning airflow. New York City is installing these valves at all their wastewater treatment plants to improve air flow control and energy savings. The District may consider looking into this valve for its aeration basins. Mr. Petit stated that based on his visit, he is confident that the District's CWMP is on track for the future. COMMITTEE ACTION: Received the update, and recommended that a presentation be given at a future Board meeting summarizing Mr. Petit's top priorities and takeaways from the IFAT-2016 Conference. 6. Discussion on individual project budget transfers: • Headquarters Office Building (HOB) Garden Level Improvements • Information Technology (IT) Development Budget This item was taken out of order immediately following Item 3. Mr. Lopez explained that the HOB Garden Level Improvements Project, DP 8234, is currently underway, and the IT group has requested additional cabling and network equipment be installed while the walls and flooring are easily accessible. Mr. Huie stated that the IT Development project budget has Engineering & Operations Committee Minutes July 6, 2016 Page 5 adequate funding to cover this cost. Mr. Lopez explained that this change order to the contractor will require the use of the IT project funds, and staff is planning to pay for the potential $30,000 improvements from the IT Development budget, DP 8420. COMMITTEE ACTION: Discussed and provided feedback. 7. Receive Change Order Log, Quarterly Reports, and Bid Schedules Mr. Lopez reviewed the reports included in the agenda materials. COMMITTEE ACTION: Received the reports. 8. Announcements a. Future scheduled meetings: Tuesday, August 2, 2016 at 10:30 a.m. Tuesday, September 6, 2016 at 10:30 a.m. Tuesday, October 11, 2016 at 10:30 a.m. b. Receive list of Scheduled/Parking Lot items As noted above, it was requested that Mr. Petit present his takeaways from the recent IFAT conference at a future Board meeting. 9. Suggestions for future agenda items None. 10. Adjournment — at 9:45 a.m.