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HomeMy WebLinkAboutAgenda Packet - Engineering & Operations Committee - 09/27/2021ENGINEERING & OPERATIONS COMMITTEE SEPTEMBER 27, 2021 East Valley Water District was formed in 1954 and provides water and wastewater services to 103,000 residents within the cities of San Bernardino and Highland, and portions of San Bernardino County. EVWD operates under the direction of a 5­member elected Board. COMMITTEE MEMBERS Ronald L. Coats Governing Board Member David E. Smith Governing Board Member Engineering & Operations Committee September 27, 2021 ­ 2:30 PM 31111 Greenspot Road, Highland, CA 92346 Via Teleconference In an effort to prevent the spread of COVID­19 and in accordance with Governor Newsom’s Executive Order N­25­20 and N­29­20, this meeting is being conducted via teleconference. There will be no public location for attending this meeting in person. Members of the public may listen and provide public comment telephonically. Anyone wishing to join the meeting may do so using the following information: DIAL: 1­209­425­5876 and enter CONFERENCE ID: 862 515 637# You may also join by clicking HERE to join the meeting via Microsoft Teams. PLEASE NOTE: Materials related to an item on this agenda submitted to the Board after distribution of the agenda packet are available for public inspection in the District’s office located at 31111 Greenspot Rd., Highland, during normal business hours. Also, such documents are available on the District’s website at eastvalley.org and are subject to staff’s ability to post the documents before the meeting. Pursuant to Government Code Section 54954.2(a), any request for a disability­related modification or accommodation, including auxiliary aids or services, that is sought in order to participate in the above agendized public meeting should be directed to the District Clerk at (909) 885­4900 at least 72 hours prior to said meeting. In order to comply with legal requirements for posting of agenda, only those items filed with the District Clerk by 12:00 p.m. on Wednesday prior to the following Wednesday meeting not requiring departmental investigation, will be considered by the Board of Directors. CALL TO ORDER PLEDGE OF ALLEGIANCE ROLL CALL OF BOARD MEMBERS PUBLIC COMMENTS Any person wishing to speak to the Board of Directors is asked to complete a Speaker Card and submit it to the District Clerk prior to the start of the meeting. Each speaker is limited to three (3) minutes, unless waived by the Chairman of the Board. Under the State of California Brown Act, the Board of Directors is prohibited from discussing or taking action on any item not listed on the posted agenda. The matter will automatically be referred to staff for an appropriate response or action and may appear on the agenda at a future meeting. DISCUSSION AND POSSIBLE ACTION ITEMS 1.Consider Approval of July 26, 2021 Minutes 2.Managing Long­Term Water Production 3.Engineering Updates for September 2021 ADJOURN ENGINEERING & OPERATIONS COMMITTEESEPTEMBER 27, 2021East Valley Water District was formed in 1954 and provides water and wastewater services to103,000 residents within the cities of San Bernardino and Highland, and portions of SanBernardino County.EVWD operates under the direction of a 5­member elected Board.COMMITTEE MEMBERS Ronald L. Coats Governing Board Member David E. Smith Governing Board Member Engineering & Operations Committee September 27, 2021 ­ 2:30 PM 31111 Greenspot Road, Highland, CA 92346 Via Teleconference In an effort to prevent the spread of COVID­19 and in accordance with Governor Newsom’s Executive Order N­25­20 and N­29­20, this meeting is being conducted via teleconference. There will be no public location for attending this meeting in person. Members of the public may listen and provide public comment telephonically. Anyone wishing to join the meeting may do so using the following information: DIAL: 1­209­425­5876 and enter CONFERENCE ID: 862 515 637# You may also join by clicking HERE to join the meeting via Microsoft Teams. PLEASE NOTE: Materials related to an item on this agenda submitted to the Board after distribution of the agenda packet are available for public inspection in the District’s office located at 31111 Greenspot Rd., Highland, during normal business hours. Also, such documents are available on the District’s website at eastvalley.org and are subject to staff’s ability to post the documents before the meeting. Pursuant to Government Code Section 54954.2(a), any request for a disability­related modification or accommodation, including auxiliary aids or services, that is sought in order to participate in the above agendized public meeting should be directed to the District Clerk at (909) 885­4900 at least 72 hours prior to said meeting. In order to comply with legal requirements for posting of agenda, only those items filed with the District Clerk by 12:00 p.m. on Wednesday prior to the following Wednesday meeting not requiring departmental investigation, will be considered by the Board of Directors. CALL TO ORDER PLEDGE OF ALLEGIANCE ROLL CALL OF BOARD MEMBERS PUBLIC COMMENTS Any person wishing to speak to the Board of Directors is asked to complete a Speaker Card and submit it to the District Clerk prior to the start of the meeting. Each speaker is limited to three (3) minutes, unless waived by the Chairman of the Board. Under the State of California Brown Act, the Board of Directors is prohibited from discussing or taking action on any item not listed on the posted agenda. The matter will automatically be referred to staff for an appropriate response or action and may appear on the agenda at a future meeting. DISCUSSION AND POSSIBLE ACTION ITEMS 1.Consider Approval of July 26, 2021 Minutes 2.Managing Long­Term Water Production 3.Engineering Updates for September 2021 ADJOURN ENGINEERING & OPERATIONS COMMITTEESEPTEMBER 27, 2021East Valley Water District was formed in 1954 and provides water and wastewater services to103,000 residents within the cities of San Bernardino and Highland, and portions of SanBernardino County.EVWD operates under the direction of a 5­member elected Board.COMMITTEE MEMBERSRonald L. CoatsGoverning Board Member David E. SmithGoverning Board MemberEngineering & Operations CommitteeSeptember 27, 2021 ­ 2:30 PM31111 Greenspot Road, Highland, CA 92346Via TeleconferenceIn an effort to prevent the spread of COVID­19 and in accordance with Governor Newsom’sExecutive Order N­25­20 and N­29­20, this meeting is being conducted via teleconference.There will be no public location for attending this meeting in person. Members of the publicmay listen and provide public comment telephonically.Anyone wishing to join the meeting may do so using the following information:DIAL: 1­209­425­5876 and enter CONFERENCE ID: 862 515 637#You may also join by clicking HERE to join the meeting via Microsoft Teams.PLEASE NOTE:Materials related to an item on this agenda submitted to the Board after distribution of theagenda packet are available for public inspection in the District’s office located at 31111Greenspot Rd., Highland, during normal business hours. Also, such documents are availableon the District’s website at eastvalley.org and are subject to staff’s ability to post thedocuments before the meeting.Pursuant to Government Code Section 54954.2(a), any request for a disability­relatedmodification or accommodation, including auxiliary aids or services, that is sought in orderto participate in the above agendized public meeting should be directed to the District Clerkat (909) 885­4900 at least 72 hours prior to said meeting. In order to comply with legal requirements for posting of agenda, only those items filed with the District Clerk by 12:00 p.m. on Wednesday prior to the following Wednesday meeting not requiring departmental investigation, will be considered by the Board of Directors. CALL TO ORDER PLEDGE OF ALLEGIANCE ROLL CALL OF BOARD MEMBERS PUBLIC COMMENTS Any person wishing to speak to the Board of Directors is asked to complete a Speaker Card and submit it to the District Clerk prior to the start of the meeting. Each speaker is limited to three (3) minutes, unless waived by the Chairman of the Board. Under the State of California Brown Act, the Board of Directors is prohibited from discussing or taking action on any item not listed on the posted agenda. The matter will automatically be referred to staff for an appropriate response or action and may appear on the agenda at a future meeting. DISCUSSION AND POSSIBLE ACTION ITEMS 1.Consider Approval of July 26, 2021 Minutes 2.Managing Long­Term Water Production 3.Engineering Updates for September 2021 ADJOURN Agenda Item #1 September 27, 20211 1 8 8 Meeting Date: September 27, 2021 Agenda Item #1 Discussion Item Regular Meeting TO: Committee Members FROM: Jeff Noelte, Director of Engineering & Operations SUBJECT: Consider Approval of July 26, 2021 Minutes RECOMMENDATION Staff recommends that the committee approve the July 26, 2021 minutes as submitted. AGENCY GOALS AND OBJECTIVES II - Maintain a Commitment To Sustainability, Transparency, and Accountability A. Practice Transparent and Accountable Fiscal Management B. Utilize Effective Communication Methods REVIEW BY OTHERS This agenda item has been reviewed by the Engineering and Operations departments. FISCAL IMPACT There is no fiscal impact associated with this agenda item. Recommended by: ________________ Jeff Noelte Director of Engineering & Operations ATTACHMENTS July 26, 2021 Minutes P a g e | 1 Minutes 5/24/2021 bvm DRAFT EAST VALLEY WATER DISTRICT July 26, 2021 ENGINEERING AND OPERATIONS COMMITTEE MEETING VIA TELECONFERENCE MINUTES Ms. Van Meter called the meeting to order at 2:30 p.m. and Director Smith led the flag salute. PRESENT: Directors: Smith, Coats ABSENT: None STAFF: Jeff Noelte, Director of Engineering and Operations, Patrick Milroy, Operations Manager; Nathan Carlson, Senior Engineer; Brenda Van Meter, Administrative Assistant GUEST(s): None PUBLIC COMMENTS There being no written or verbal comments, the public participation section was closed. APPROVE THE MAY 24, 2021, ENGINEERING AND OPERATIONS COMMITTEE MEETING MINUTES The minutes for May 24, 2021, were approved by unanimous roll call vote as submitted. Operations Update: Plant 34 Mr. Milroy presented an update for Plant 34. The facility is an older plant in the City of San Bernardino, west of Del Rosa and south of Highland. It is sometimes referred to as the Perris Hill reservoir. The plant has a 1-million-gallon storage tank and a 6,000-gallon hydro pneumatic tank with two small boosters. The larger reservoir provides water to the lower zone and the smaller tank provides water to 14 homes that are located up on a hill. The chain link fencing was replaced with wrought iron fencing to provide a more secure perimeter around the plant. The cost for the fencing was $90,000 and the upgraded asphalt and retaining wall costs were approximately $43,000. Engineering Update for July 2021 Mr. Noelte presented photos of the Sterling Natural Resources Center. He discussed the various buildings that were shown and described their purpose. There is a concrete foundation currently being prepared for the gas conditioning equipment, which serves to fuel the renewable energy generators once sulfides, moisture, and trace organics are P a g e | 2 Minutes 5/24/2021 bvm removed from the gas. Ammonia removal equipment is currently being installed on a concrete pad, with interconnecting pipes being placed. The excavation of the onsite emergency storage basin has begun. The chemical facility that serves the liquid treatment portion of the plant has had the protective coating applied to the concrete. Bleach and citric acid will be used to keep the membranes in good working order. This facility will store these chemicals and will have metering pumps to allow for chemical delivery. Supplemental carbon can also be stored in this facility in case it is needed to support the nitrogen removal process. The electrical rooms require air conditioning, which has been installed. The electric service at the treatment plant was energized by Edison recently, allowing the District to power and test equipment at its choosing. Plant 101 Stationary Generator Installation Mr. Noelte presented an update regarding Plant 101. The District obtained a grant for stationary generator funding. The allocated amount is up to $300,000, which will cover engineering, equipment, and construction costs. The installation of the stationary generator will be done ahead of the rehabilitation of other equipment to meet the schedule for the grant funding. Reservoir Seismic Study Mr. Noelte discussed the grant that allowed for an engineering study of our welded steel reservoirs to assess the potential need for structural upgrades to reduce the risk of damage from earthquakes. The District’s consultant has conducted site investigations and is currently compiling the data. ADJOURN The meeting adjourned at 3:00 p.m. David E. Smith Ronald L. Coats Governing Board Member Governing Board Member Agenda Item #2 September 27, 20211 1 8 6 Meeting Date: September 27, 2021 Agenda Item #2 Discussion Item Regular Meeting TO: Committee Members FROM: Patrick Milroy, Operations Manager SUBJECT: Managing Long-Term Water Production RECOMMENDATION This report is provided to the Engineering and Operations Committee for its information only. BACKGROUND / ANALYSIS Groundwater management is challenging but necessary to ensure adequate water supply for District customers. After completion of Sterling Natural Resources Center, the facility will deliver approximately 6 million gallons of recycled water per day to the Weaver Basins. This will be a huge benefit for the long-term health of the Bunker Hill Basin. However, the proximity and relative location of the Weaver Basins to three of the District’s wells will require the wells to be taken out of service in accordance with groundwater recharge regulations. The wells in question are 143, 146 and 147 which have provided approximately 12% of the District’s overall production for the past five years. In preparation for the loss of groundwater production, staff is working to find ways to increase production at Plants 120, 125 and 134. The District hired Geoscience, a consultant to validate our strategies and make recommendations for new wells. The Production team recently worked with a pump contractor to rehabilitate well 125 with the goal to increase production as much as possible without jeopardizing basin health. The efforts were successful, increasing the well capacity from 1300 gallons per minute (gpm) to 2200 gpm. Staff has been working closely with Geoscience which specializes in groundwater modeling and basin management. We are in the process of analyzing Plant 120, which is a well site that has been out of service for about 10 years. The well site once produced sand and the decision was made to turn it off and leave it out of service. The goal is to take a closer look at the sand problem and bring it back to life. A test pump was installed and ran at different flow rates to measure the sand production. It was found that the well produces sand in the water at flow rates around 1500 gpm, but no sand was found when the flow is reduced to 800 gpm. Plant 120 requires a new Agenda Item #2 September 27, 20212 1 8 6 Meeting Date: September 27, 2021 Agenda Item #2 Discussion Item 50,000-gallon tank, some electrical, and SCADA improvements to return it to full operation again. The investment would yield a huge win, providing a water production gain of 800 gpm, and mitigating the impact of recharging recycled water at the Weaver Basins. Under current hydraulic conditions, Treatment Plant 134 can produce a maximum of 6.5 million gallons per day (mgd), instead of the design capacity of 8 mgd. Staff believes there is a choke point at the strainers, which are screens installed just upstream of the membranes to capture debris like leaves, twigs, and pieces of algae. Staff worked closely with the strainer manufacturer and determined the strainer screen size can be increased without damaging the membranes. Staff plans to replace the internal components of the strainers with hopes to increase maximum production to 8 mgd after the new strainers are installed, which is scheduled for early 2022. In addition to improving the hydraulic capacity, the installation of the Plant 134 GAC system will ensure the overall treatment capacity is close to 8 mgd by providing the ability to remove organic carbon which in turn controls TTHM formation. Prior to Weaver Basins becoming the recharge site for recycled water, the completion of the GAC system was scheduled for early 2023. Now this schedule has been accelerated to a May 2022 completion to accommodate the loss in groundwater production. Staff will continue to work with the consultant to help us overcome the loss of wells once Sterling Natural Resources Center recharge efforts occur, but we believe we have already made progress to ensure adequate water supply for East Valley customers. AGENCY GOALS AND OBJECTIVES IV - Promote Planning, Maintenance and Preservation of District Resources A. Develop Projects and Programs to Ensure Safe and Reliable Services C. Dedicate Efforts Toward System Maintenance and Modernization REVIEW BY OTHERS This agenda item has been reviewed by engineering and the executive management team. FISCAL IMPACT This project was funded in the operating budget. The consulting fees are $100,000. Agenda Item #2 September 27, 20213 1 8 6 Meeting Date: September 27, 2021 Agenda Item #2 Discussion Item Respectfully submitted: ________________ Patrick Milroy Operations Manager ATTACHMENTS Map Predicted Travel Distance (1 Year after 2022) Loss of Production GPM Replacement Production GPM Well 143 800 Well 125 900 Well 146A 900 Well 120 800 Well 147 1,900 Treatment Plant 134 1,100 Total 3,600 2,800 EVWD Plant No. 125 Agenda Item #3 September 27, 20211 1 9 1 Meeting Date: September 27, 2021 Agenda Item #3 Discussion Item Regular Meeting TO: Committee Members FROM: Jeff Noelte, Director of Engineering & Operations SUBJECT: Engineering Updates for September 2021 RECOMMENDATION This agenda item is for informational purposes only, no action required. BACKGROUND / ANALYSIS Updates are provided below for three items that Engineering staff are working on. Sterling Natural Resource Center: The biogas conditioning vessels have been installed. The bridge crane structure has been installed over the MBR tanks. The thickened waste activated sludge (WAS) storage silo has been installed on the south side of the Biosolids Building. The ponds on the Administration Center side have been lined. The curbs associated with the Administration Center parking area have been constructed. Installation of the precast pipe trench has been completed for the chemical feed piping for the MBR and aeration basins. Roll-up doors have been installed in the truck load-out bays of the Biosolids Building. Design and permitting work for the new discharge location, Weaver Basins, is ongoing. Construction progress photos are shown in Exhibit 1. Plant 134 GAC Project: Staff continues to manage the design-build effort with has progressed to the 80% design level. Exhibit 2 shows the anticipated configuration of the 6 GAC vessels at Plant 134, and a photo of a typical pair of GAC vessels. Agenda Item #3 September 27, 20212 1 9 1 Meeting Date: September 27, 2021 Agenda Item #3 Discussion Item Tesla Battery Energy Storage Systems: The construction of the concrete pad for the batteries at District HQ was recently completed, along with some conduit work. The concrete equipment pad at Plant 140 will be constructed next, and the design of the system for Plant 134 is being finalized. AGENCY GOALS AND OBJECTIVES I - Implement Effective Solutions Through Visionary Leadership A. Identify Opportunities to Optimize Natural Resources IV - Promote Planning, Maintenance and Preservation of District Resources A. Develop Projects and Programs to Ensure Safe and Reliable Services C. Dedicate Efforts Toward System Maintenance and Modernization REVIEW BY OTHERS This agenda item has been reviewed by the Executive Management Team. FISCAL IMPACT There is no fiscal impact associated with this agenda item. Respectfully submitted: ________________ Jeff Noelte Director of Engineering and Operations ATTACHMENTS Exhibits AGENDA DATE: September 27, 2021 SUBJECT: ENGINEERING REPORT FOR SEPTEMBER 2021 Page | 3 Exhibit 1: SNRC Construction Photos Biogas conditioning vessels (sulfide and VOC removal) MBR bridge crane structure AGENDA DATE: September 27, 2021 SUBJECT: ENGINEERING REPORT FOR SEPTEMBER 2021 Page | 4 Exhibit 1 continued Thickened WAS storage on south side of Biosolids Building Lining of pond on Administration Center side AGENDA DATE: September 27, 2021 SUBJECT: ENGINEERING REPORT FOR SEPTEMBER 2021 Page | 5 Exhibit 1 continued Curb construction for Administration Center Precast pipe trench for chemical feed piping AGENDA DATE: September 27, 2021 SUBJECT: ENGINEERING REPORT FOR SEPTEMBER 2021 Page | 6 Exhibit 1 continued Roll-up door installation at Biosolids Building AGENDA DATE: September 27, 2021 SUBJECT: ENGINEERING REPORT FOR SEPTEMBER 2021 Page | 7 Exhibit 2: Plant 134 GAC Vessels Configuration of 6 GAC vessels in former filter room at Plant 134 Typical GAC vessel pair