Consent Calendar Item 4g
STAFF REPORT
City Council Consent Calendar Agenda Item
DATE: April 18, 2022
TO: Honorable Mayor and Council Members
FROM: Brendan Byrd, Public Works Director/City Engineer SUBJECT: Public Works/Engineering Department Monthly Report STAFF RECOMMENDATION:
Receive report as an informational item.
EXECUTIVE SUMMARY:
Public Works Director/City Engineer
Over the past month, public works staff have been heavily engaged in the development of the coming years Capital Improvement Program, Fee Schedule, and Budget. In addition, staff have been engaged in a number of ongoing projects, see the summary below:
12th Street Interchange Modernization Project
The City’s $950,000 funding recommendation went to the California Transportation Commission (CTC) in March and was fully approved. During March, staff developed and posted a Request for Proposals to complete the project, and proposals are due to the City by April 13th. Staff anticipate ranking and scoring the proposals and making a consultant selection during the final weeks of April, and bringing an award recommendation for a professional services contract to the Council in May.
Kenmar and US Highway 101 Interchange Improvement Project The City’s engineering consultant is currently working on finalizing the final draft geometric design for the dog-bone roundabouts and staff are anticipating concurrence from Caltrans staff soon. After gaining final approval on the preliminary design, the City’s consultants can begin the environmental compliance portion of the contract (CEQA and NEPA), in addition to some of the detailed structural site investigations for the overpass bridge abutments. Once the preliminary designs have been finalized and approved by Caltrans, staff will bring the layouts as an informational item to the Council.
12th Street Prop 1 Integrated Stormwater Enhancement Project Staff have executed the final grant documents and anticipate having an executed grant agreement within the month. Over the past month, staff have also worked on filing the California Environmental Quality Act (CEQA) documentation for the project, and have had preliminary discussions with the high school on a necessary update to the draft Memorandum of Understanding for Maintenance that was developed during the grant application phase of work.
Consent Calendar Item 4g
Stormdrain Infrastructure Hazard Identification Project Staff have been working with our selected engineering consultant to finalize a project scope of work that meets the original FEMA application guidelines. Staff anticipate beginning work on this project in late April.
Tesla Battery Systems
The battery system at the City’s municipal well site remains ongoing; see the Chief Plant Operators staff report for an update on the construction progress at this site.
The battery system at the wastewater treatment plant as of late January is operational. Currently, battery power is running the site during the 4-9 pm power peak hour times. Staff anticipate providing an update on this system’s operation in next month’s staff report.
The battery system at the Kenmar water booster station is still undergoing a PG&E review for interconnection.
Kenmar and Drake Hill Water Pump Station Emergency Stationary Generators Staff and our engineering consultants, Pace, are working to finalize the bid package, which includes the contract documents, technical specifications, and project plans. Staff anticipate that the project will be put out to bid in mid-April. After bidding and award, the low bid contractor will immediately place an order for the emergency generators, as current discussions with CAT have indicated that generator ordering lead-time is up to one-year.
CDBG ADA Barrier Removal Project
This project includes ADA barrier removal improvements for several proposed locations throughout this City, including new curb ramps at several intersections on Main Street, improvements to the Rodeo Grounds entrance, and sidewalk improvements along N Street. In January, staff submitted an application packet to the Department of Housing and Community Development (HCD), and are currently awaiting their response. Staff have continued to follow up with HCD during the past several months, however there has continued to be no indication on when the City can anticipate a response on the application. After receiving the response from HCD, staff will better understand the overall project delivery timeline, and can provide a better estimate of the anticipated construction window.
WWTP Percolation Pond Rehabilitation Project
The project was awarded to the low bid contractor, William Gray Construction, at the April 4th City Council Meeting. Staff are currently working with the contractor to obtain all bonding and insurance, and anticipate the project work to begin the week of April 18th. To meet the City’s regulatory deadline, this project will need to be completed by May 14th.
Jameson Creek Fish Passage Improvement Project
Staff are continuing to work on final grant closeout and reporting on this project.
Consent Calendar Item 4g
Utilities Division- Utility Lead
Service Call Summary
In March the utilities division completed 100 service calls by operators. Figure 1 below shows the distribution of service calls by type.
The division completed 28 Underground Service Alert (USA) mark and locates with no miss-marks, resulting in zero broken utilities.
Figure 1. Utility division service calls by type in March.
Water Distribution System
The utilities team installed three new services to the system in the month of March. In March there was one water leak, with an estimated 2,400 gallons of water lost.
Additionally a fire hydrant was hit on Riverwalk Drive, resulting in an estimated 38,925 gallons of lost water. Table 1 below shows a summary of annual lost water for 2022.
Table 1. Water leak rate and water loss estimates for 2022. 0 5
10 15
20 25
30 35
40 Connect Disconnect Occupant Change Service Action
Number of Calls
Service Call Type
Date Location Pipe
Information
Estimated
Leak Rate
(Gallons per
Minute)
Leak
Duration
Total
Estimate
Leak
Volume
(Gallons)
1/20/2022 Newell Drive 2” Cast Iron 2 5 days 28,800
2/8/2022 Hillside Drive 6” Cement 5 5 days 36,000
2/17/2022 Sunny Heights Drive ¾” Plastic 10 3 days 43,200 2/23/2022 Orchard Lane 6” Cement 900 1 hour 54,000
3/14/2022 Riverwalk Drive 6” Hydrant 1000 0.75 hour 39,000 3/30/2022 West End Place ¾” Plastic 40 1 hour 2,400
Consent Calendar Item 4g
Wastewater Collections System
The utilities division focused a significant
amount of time in March performing
camera inspections of the City sewer
system. In March, staff cleaned and
inspected 13,985 feet of sewer mains.
While performing camera inspections
staff found a 6” sewer main on Holman
Way with a significant break (see photo
inset right), which the utilities crew will
make plans to repair as soon as possible.
Miscellaneous Tasks
The utilities division performed monthly maintenance on the division’s heavy equipment, including greasing and checking all fluids.
Water Treatment/Wastewater Division- Chief Plant Operator Wastewater Treatment Summary
The following table and chart show the wastewater effluent flow data in March, and compares them to the same month for the past five years. The plant is continuing to see low effluent flow numbers compared to previous years given the low precipitation this winter.
Table 2. March wastewater plant effluent flows for the past five years in Million Gallons (MG) and Million Gallons per Day (MGD).
Figure 2. March wastewater plant effluent flows in March for the past five years in Million Gallons (MG) and Million Gallons per Day (MGD).
0 10
20 30
40 50
60 70
80 0
0.5 1
1.5 2
2.5 3
3.5 4
4.5 2018 2019 2020 2021 2022
Total Flow, MG
Daily Flow, MGD
Total Monthly Flow, MG Max Daily Flow, MGD Avg Daily Flow, MGD Year 2018 2019 2020 2021 2022
Total Monthly Flow, MG 66.898 67.552 35.81 51.29 26.940 Maximum Daily Flow, MGD 3.568 4.141 1.528 2.63 1.240
Average Monthly Flow, MGD 2.158 2.179 1.155 1.655 0.869 Consent Calendar Item 4g
Water Production Summary
The following table and chart show the potable water production data in March for the past five years, and compare them to the benchmark month of July 2013, which was 42.000 MG.
Table 3. March potable water production for the past five years in Million Gallons (MG).
Figure 3. March potable water production for the past five years in Million Gallons (MG) and Million Gallons per Day (MGD).
Division Projects and Notable Activity
Tesla Corrosion Control Facility Battery Project: Tesla contractors completed the concrete pad for the power supply battery units at the Corrosion Control Facility (see photo inset left). The elevated pad is 1-foot above the 100-year flood level. Electrical contractors also arrived to install the batteries and begin the utility interconnection, which is anticipated to be completed in April.
Division Staffing: Staff completed interviews for an open Treatment Plant Operator position. Staff offered the
position to a successful candidate who will start work in April.
Compost Giveaway: Staff conducted a giveaway of Class
A Exceptional Quality compost to the public. Demand was very high and approximately 347 cubic yards of finished and screened compost was given away in just four days. 0 0.2
0.4 0.6
0.8 1
1.2 1.4
1.6 26
27 28
29 30
31 32
33 2018 2019 2020 2021 2022
Flow, MGD
Production, MG
Production Max Daily Avg Daily
Year 2018 2019 2020 2021 2022
Total Production, MG 29.838 28.819 31.799 30.085 28.105 Maximum Daily, MG 1.4 1.066 1.121 1.487 1.065
Average Daily, MG 0.963 0.93 1.026 0.97 0.907
Percent Difference from
Benchmark Month, %
-28.96% -31.38% -24.29% -28.37% -33.08%
Consent Calendar Item 4g
Compost Building LED Lighting Upgrades: In an effort to reduce energy consumption and operating costs at the plant, staff experimented by changing out one 460W metal halide bulb with a 100 W LED in the compost building. Plans are to change out the other 25 fixtures as soon as possible. Staff anticipate a $1,000-$2,000 savings on electrical costs annually through this improvement, with a payback period of approximately one-year.
Wastewater Maintenance Tasks Completed
Staff switched secondary clarifiers in operation at the plant to perform routine maintenance activities.
Staff spent time de-ragging the submersible pump of “flushable” wet wipes at Rundell Lift Station on Main St. The issue has since subsided after the Chief Plant Operator notified residents of the issue.
Staff cleaned out the chlorine contact basins and the recycled water hydropneumatic tank. Staff cleaned out the digester’s heat exchanger and one of the associated pump’s check valves.
Staff cleaned the anaerobic digester’s heating boiler. Staff began dismantling a small roof structure over some plant piping. The support beams were found damaged, which would eventually cause the structure to fail.
Water System Events & Maintenance Tasks Completed
Staff conducted extensive troubleshooting at the Vancil pump station due to the electrical tripping of one of the three pumps. Staff serviced the
pump impeller and changed out an electrical breaker,
which corrected the issue.
Staff changed out electrical equipment at the Home
Avenue booster pump station, exercised emergency
generators, and changed out the block heater at the Vancil emergency generator.
Staff changed-out the main flowmeter at the Corrosion Control Facility (photo inset right). The existing meter was a propeller-style model that over-registered by as
much as 6%, according to recent calibrations. The new
meter is a magnetic style meter with a much higher
degree of accuracy, which will result in more accounting of system water losses in the future.
General Services and Streets - General Services Superintendent The following is a list of scheduled assignments completed by the General Services staff in March:
Consent Calendar Item 4g
Staff prepared Riverwalk Drive for the
on call striping company after the
completion of the paving operation in
February, and prepared existing striping
for other areas due to be rehabilitated by
the striping contractor. Additionally,
staff raised three water valves and one
road monument after the paving
operation.
Staff installed stabilization fabric on a
section of bare soil along the fill slope
of Vista Drive (photo inset right).
Staff assisted the Waste Water Treatment Plant crew by operating the mower to remove tall vegetation in the center dry overflow pond. Staff also excavated test pits in the compost piles for sampling prior to the compost giveaway.
Staff provided traffic control for an oil cleanup on 12th Street. Staff removed a large tree that fell on a house due to high winds. Staff removed a windfall tree on Christian Ridge Road that partially blocked the roadway. Staff replaced broken tiles in the Council Chambers.
Staff repaired the agricultural equipment disc for the seasonal use at Rohner Park. Staff installed a pedestrian barrier at the end of the sidewalk on Rohnerville Road. Staff assisted in the development of various grant applications to the USDA Community Infrastructure Grant Program.
Staff worked with our on-call paving contractor to resurface the section of I Street in between 12th and 13th Streets.
In addition to the special tasks noted above, staff also engaged in the following regular routine maintenance activities including USA’s, street sweeping, recycling and trash management, road maintenance, vegetation management, and safety training and inspections. Staff is available for questions, requests, and emergency responses to the community.
RECOMMENDED COUNCIL ACTION:
Receive Public Works Department Monthly Report. Consent Agenda vote.