Consent Calendar Item 4g
STAFF REPORT
Consent Agenda Item
DATE: August 21, 2023
TO: Honorable Mayor and Council Members
FROM: Brendan Byrd, Public Works Director/City Engineer THROUGH: Merritt Perry, City Manager
SUBJECT: Public Works/Engineering Department Monthly Report STAFF RECOMMENDATION:
Receive report as an informational item.
EXECUTIVE SUMMARY:
Public Works Director/City Engineer
The next Public Works Director’s report will be provided in September.
Utilities Division- Utility Lead
Service Call Summary
In the month of July the utilities division completed 75 service calls by operators. Figure 1 below shows the distribution of service calls by type.
Underground Service Alert (USA) has changed their format and the utilities crew can no longer track how many mark and locates have been completed. There were zero missmarked line, resulting in zero broken utilities.
Figure 1. Utility division service calls by type in July. 0 5
10 15
20 25
30 Connect Disconnect Occupant Change Service Action
Number of Calls
Service Call Type
Consent Calendar Item 4g
Water Distribution System
Read water meters.
Completed meter worksheet.
The utilities team installed three new services to the system in the month of July. In the month of July the utilities team changed out 6 dead water meters, which is a low amount for the crew.
Continued to check service lines for lead.
In July there was one water leak. As a result of this, there was an estimated water loss of 14,400 gallons. The leak location was the 2000 block of Jenny Ln. There was a scheduled shut down on 12th St. and downtown locations for the contractor to relocate the eight inch water main.
Repaired a water main that was broke by contractors in the hillside behind coast central credit union.
Dug up the eight inch water main on 12th St. and prepped for a new valve installation.
Table 1. Water leak rate and water loss estimates for July 2023. Halfway through 2023 the estimated total water loss due to leaks is 453,555 gallons.
Wastewater Collections System
Utilities cleaned 11,000 feet of sewer main.
Repaired nine feet of sewer main broke by contractors behind coast central credit union. Televised the sewer main on Main St. from 14th to 16th St. There was zero sewer plugs in the month of July.
Miscellaneous Tasks
The utilities division performed monthly maintenance on the division’s heavy equipment, including greasing and checking all fluids.
Date Location Pipe
Information
Estimated
Leak Rate
(Gallons per
Minute)
Leak
Duration
Total
Estimate
Leak
Volume
(Gallons)
7/12/2023 2060 Jenny Ln. 2’’ MIP 5 2 Days 14,400
Consent Calendar Item 4g
Wrapped more A.C. pipe for disposal.
Tim and Andy spent a week in San Jose at backflow training class, both passed their test final exams are now licensed testers.
Water Treatment/Wastewater Division- Chief Plant Operator Wastewater Treatment
Table 2. July wastewater plant effluent flows for the past five years in Million Gallons (MG) and Million Gallons per Day (MGD).
Figure 2. July wastewater plant effluent flows for the past five years in Million Gallons (MG) and Million Gallons per Day (MGD).
Wastewater Events & Maintenance Tasks Completed:
Staff repaired sewage discharge piping and unclogged a pump at Astor lift station on Xavier Ct.
Staff replaced one of the two discharge 4” check valves at Laurelwood lift station on Laurelwood Ct.
Staff worked with a consultant engineer on the required 5-year update of the City’s Sewer System Management Plan (SSMP), including the creation of a mandatory Spill Emergency Response Plan (SERP).
Water Treatment
Table 3. July potable water production for the past five years in Million Gallons (MG). 23 24
25 26
27 28
29 30
31 32
0 0.2
0.4 0.6
0.8 1
1.2 1.4
2019 2020 2021 2022 2023
Total Flow, MG
Flow, MGD
Total Monthly Flow, MG MAX Daily Flow, MGD AVG Daily Flow, MGD Year 2019 2020 2021 2022 2023
Total Monthly Flow, MG 28.954 31.027 27.010 27.430 26.070 Maximum Daily Flow, MGD 1.080 1.210 0.970 1.030 0.960
Average Monthly Flow, MGD 0.934 1.001 0.871 0.885 0.841 Consent Calendar Item 4g
Figure 3. July potable water production for the past five years in Million Gallons (MG).
Table 4. Average July depth-to-groundwater static levels in the City’s active wells for the past five years in feet.
Figure 4. Average July depth-to-groundwater static levels in the City’s active wells for the past five years in feet.
Water Events & Maintenance Tasks Completed:
Staff worked with contractors at the Drake Hill pump station to finalize testing and activation of the new emergency generator. The unit is now functioning and online. Staff rebuilt the enclosure around the pressure-reducing valve (PRV) at Kenmar pump station.
Staff worked with a consultant engineer to procure bids for a critical and time-sensitive rehabilitation project on Well #2. The well’s production has decreased with lots of air in 0 0.5
1 1.5
2 2.5
3 0
10 20
30 40
50 60
2019 2020 2021 2022 2023
Flow, MGD
Production, MG
Production Max Daily Avg Daily
0 20
40 2019 2020 2021 2022 2023
Static Level, ft
Well #1 Well #2 Well #4 Well #5
Year 2019 2020 2021 2022 2023
Total Production, MG 48.16 54.867 42.916 40.006 41.759
Maximum Daily, MG 2.09 2.458 1.839 1.980 1.803
Average Daily, MG 1.553 1.770 1.384 1.291 1.347
Year 2019 2020 2021 2022 2023
Well #1 29.2 28.2 30.5 30.0 29.4
Well #2 25.6 25.2 27.5 27.2 26.8
Well #4 32.0 30.7 33.0 32.6 32.3
Well #5 34.0 32.6 34.9 34.6 34.1
Consent Calendar Item 4g
the discharge. A suspect corrosion problem on the well’s drop-pipe will require extraction, inspection and possible replacement.
Tank-coating contractors completed re-coating both the interior and exterior of Hillside tank early in the month. Staff filled the tank, tested for water quality parameters, and then brought the tank online. Staff and contractors then moved the three, 10,000-gallon temporary tanks at Hillside to Campton Heights tank to add to the five others already there.
At Hillside tank, staff also added grip tape to the ladder rungs and part of the roof, and then replaced the center vent screen. Later in the month, other contractors came in to re-install the tank cathodic protection system.
Staff completed the integration of eight, 10,000-
gallon temporary tanks at Campton Heights tank
(see photo inset right). Staff then drained the 1MG
steel tank before the coating contractors arrived
from Hillside tank to complete re-coating the
interior and exterior there. The contractors should
be able to complete this project by the end of
August or early September.
A planned water outage on 12th St for contractor
activity resulted in a larger water outage when
pressure fell too far in the affected area. This
caused the opening of PRV station
interconnections between other water zones.
Unfortunately, these other water zones are on
reduced, temporary storage because of the water
tank coating project at Campton Heights tank.
Staff resolved the problem within hours by
isolating the PRV stations, turning on pumps, and
recuperating system capacities.
General Services and Streets - General Services Superintendent The following is a list of scheduled assignments completed by the General Services staff in July:
Consent Calendar Item 4g
Staff assisted with the Parks Department
during the July 3rd Fortuna Fire Works
Festival. Staff conducted traffic control
with the Police Department after the
conclusion of the event.
Staff prepared and conducted traffic
control during the Rodeo Week events.
Staff replaced vandalized window screens
with expanded metal (See photo inset
right). Staff removed and reinstalled the
speed bumps in Rohner Park.
Staff was available during the mid-week for Jr. Rodeo for any unexpected issues in preparation for the main events in the arena area for the weekend. Staff prepared and conducted traffic control for Auto Xpo. Staff uncovered and covered the burn out pit in front of the grandstands.
Staff graded the alley in between 15th and 16th Streets. Staff repositioned the water meter boxes to grade.
Staff power washed and sealed the concrete in front of City Hall and the Monday Club. Staff continues to water the newly planted vegetation in the Phase A portion of the Rohner Creek project.
Staff continues to mow and weed eat various ditches, along street right a-ways, and the Dog Park. Staff mowed the Dennis Wendt Memorial Trail, and the ponds located at the Waste Water Treatment plant.
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, collect batteries at City Hall, road maintenance, Dog Park maintenance, vegetation management including sniping of curbs, 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.