HomeMy Public PortalAboutJuly 22, 2021 CC Agenda Packet
CITY COUNCIL WORKSHOP
550 E. 6th Street, Beaumont, CA
Thursday, July 22, 2021
Workshop: 4:00 PM
Materials related to an item on this agenda submitted to the City Council after distribution of the agenda packets
are available for public inspection in the City Clerk’s office at 550 E. 6th Street during normal business hours.
AGENDA
MEETING PARTICIPATION NOTICE
This meeting will be conducted utilizing teleconference communications and will be recorded for live
streaming as well as open to public attendance subject to social distancing and applicable health
orders. All City of Beaumont public meetings will be available via live streaming and made available
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beaumontca.gov/livestream
Public comments will be accepted using the following options.
1. Written comments will be accepted via email and will be read aloud during the corresponding
item of the meeting. Public comments shall not exceed three (3) minutes unless otherwise
authorized by City Council. Comments can be submitted anytime prior to the meeting as well
as during the meeting up until the end of the corresponding item. Please submit your
comments to: nicolew@beaumontca.gov
2. Phone-in comments will be accepted by joining a conference line prior to the corresponding
item of the meeting. Public comments shall not exceed three (3) minutes unless otherwise
authorized by City Council. Please use the following phone number to join the call
(951) 922 - 4845.
3. In person comments subject to the adherence of the applicable health orders and social
distancing requirements.
In compliance with the American Disabilities Act, if you require special assistance to participate in this
meeting, please contact the City Clerk's office using the above email or call (951) 572 - 3196.
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arrangements.
1
WORKSHOP SESSION - 4:00 PM
CALL TO ORDER
Mayor Lara, Mayor Pro Tem White, Council Member Martinez, Council Member Fe nn, Council
Member Santos
Action of any Requests for Excused Absence
Pledge of Allegiance
Approval / Adjustments to the Agenda
Conflict of Interest Disclosure
PUBLIC COMMENT PERIOD (ITEMS NOT ON THE AGENDA)
Any one person may address the City Council on any matter not on this agenda. If you wish to speak, please fill out a
“Public Comment Form” provided at the back table and give it to the City Clerk. There is a three (3) minute time limit on
public comments. There will be no sharing or passing of time to another person. State Law prohibits the City Council from
discussing or taking actions brought up by your comments.
ACTION ITEMS
1. Presentation of Draft Wastewater Master Plan
Recommended Action:
Council discussion.
ADJOURNMENT
The next regular meeting of the Beaumont City Council, Beaumont Financing Authority, the Beaumont
Successor Agency (formerly RDA), the Beaumont Utility Authority, the Beaumont Parking Authority and
the Beaumont Public Improvement Agency is scheduled for Tuesday, August 3, 2021, at 5:00 p.m.,
unless otherwise posted.
Beaumont City Hall – Online www.BeaumontCa.gov
2
City of Beaumont
2021 Wastewater Master Plan
June 22, 2021
Workshop –Draft Master Plan
3
Item 1.
Objectives of the Wastewater Master Plan
The Wastewater Master Plan
(WWMP) provides a capacity
adequacy assessment of the City’s
sewer collection system to meet
the level of service expected by
existing customers, and to service
future growth.
•What Infrastructure Needs
to be Constructed?
•When we do we need it?
•How much will it cost?
•Who pays for it?
The WWMP is a defensible planning and budgetary document4
Item 1.
Wastewater Flows are Collected from our Homes
Wastewater Flows
are Collected from
our homes to the
Sewer pipelines in
the street
5
Item 1.
Wastewater flows continue to WWTP via Gravity Sewers,
Lift Stations, and Force Mains
Source: Metropolitan St. Louis Sewer District
6
Item 1.
Beaumont Wastewater is Collected from Tributary
Basins and Conveyed to the WWTP
•Green Lines are
smaller Gravity
Sewers.
•Blue Lines are
Large
Conveyance
Sewers
(Backbone).
•Dashed lines are
force mains
•RED arrows
indicate the
direction of
wastewater flows
7
Item 1.
Existing Wastewater Collection System
•177 miles of
Gravity Sewers
•20 miles of
Force Main
•10 Lift Stations
•1 Wastewater
Treatment
Plant
8
Item 1.
The Process
for
Developing
the WWMP
Phase 1
•Data Collection and Review
•Establish Planning Criteria
Phase 2
•Develop and Calibrate Hydraulic Model
Phase 3
•Perform Hydraulic Analysis/Evaluations
•Propose Improvements
Phase 4
•Develop Capital Improvement Program (CIP)
Phase 5
•Prepare Master Plan Report
9
Item 1.
AGENDA –Follows WWMP Report Chapters
Chapter Description
1 Introduction
2 Planning Area Characteristics
3 System Performance and Design Criteria
4 Existing Sewer Collection Facilities
5 Wastewater Flows
6 Hydraulic Model Development
7 Hydraulic Evaluation and Proposed Improvements
8 Capital Improvement Program (costs)10
Item 1.
Chapter 1 –Introduction
Purpose of Chapter Key Chapter Elements
The purpose of this chapter
is to introduce the master
plan objectives.
•Regional Location Map
•WWMP Objectives
•Definitions
•Abbreviations
•Report Organization
11
Item 1.
Regional Location Map
12
Item 1.
Objectives of the WWMP
Objective Description
Characterize Planning Area (Existing Customers, Sewer
Flows, Land Use for Future Developments)
How much sewer flows from existing customers?
What lands are expected to develop within the planning horizon?
Develop and Calibrate GIS-based Hydraulic Model The Model is an accurate tool for evaluating the capacity
adequacy of pipelines and lift stations.
How much flows are generated by Basin?
Evaluate existing pipelines and lift stations system
capacities
Do we meet an adequate Level of Service?
Recommend improvements to mitigate existing pipe
deficiencies
What improvements are needed to meet an adequate Level of
Service?
Perform Lift Station Field Review We rely on lift stations. What is the overall lift stations structural
condition?
Required improvements to service growth What improvements are required from future developments
Develop Capital Improvement Program (CIP)How much do the improvements Cost (Existing Users and Future
Developments)
13
Item 1.
Chapter 2 –Planning Area Characteristics
Purpose of Chapter Key Chapter Elements
The purpose of this chapter
is to summarize the City’s
service area, including
existing and future land use
and population.
•Service Area
•Existing Land Use
•General Plan Land Use
•Land Use Inventory
•Specific Plans
•Population
14
Item 1.
Wastewater Service Area
Beaumont Land Use
and Sewer System Service Area
Existing Land Use
2040 General Plan Land Use
15
Item 1.
Land Use
Inventory
16
Item 1.
Specific Plan Land
Use Inventory
17
Item 1.
Service Area Population
•Historical and projected
populations
documented for
informational purposes
•Population of 67,144 by
2038 (Based on City Staff
projections)
18
Item 1.
Chapter 3 –System Performance and Design
Criteria
Purpose of Chapter Key Chapter Elements
The purpose of this chapter
is to discuss City’s
wastewater system
performance and design
criteria.
•System Performance and
Design Criteria
•Wastewater Unit Factor
Analysis
•Wastewater Diurnal
Pattern
Criteria is consistent with Eastern Municipal Water District 19
Item 1.
System Performance
and Criteria
Criteria consistent with
Eastern Municipal
Water District
20
Item 1.
Wastewater Unit Factor Analysis
Factors applied to Land Use to estimate wastewater flows 21
Item 1.
Characterizing WW Flows
Shows
hourly
variations in
wastewater
flow
Developed
from flow
monitoring
data.
22
Item 1.
Chapter 4 –Existing Wastewater Collection Facilities
Purpose of Chapter Key Chapter Elements
The purpose of this chapter
is to discuss City’s existing
wastewater system.
•Existing Pipelines
Inventory
•Lift Station Inventory
23
Item 1.
Existing Wastewater Collection System
•177 miles of
Gravity Sewers
•19 miles of
Force Main
•10 Lift Stations
•1 Wastewater
Treatment
Plant
24
Item 1.
Existing System
Pipeline Inventory
25
Item 1.
Lift Station Connectivity Schematic
26
Item 1.
Lift Station Inventory
27
Item 1.
Chapter 5 –Wastewater Flows
Purpose of Chapter Key Chapter Elements
The purpose of this chapter
is to summarize historical
wastewater flows at City’s
WWTP and project flows for
future growth.
•Historical Flow Summary
•Buildout Wastewater
Flows
28
Item 1.
2019 WWTP Flows (January-December)
Highest months
are August and
November.
November high
flows due to Wet
weather flows
29
Item 1.
Historical
Wastewater
Flows Data
•3.66 mgd is the average
flow
•1.33 times higher than
average during maximum
day dry weather
•1.88 times higher than
average during maximum
day wet weather 30
Item 1.
Projected Buildout Wastewater Flows
31
Item 1.
Chapter 6 –Hydraulic Model Development
Purpose of Chapter Key Chapter Elements
The purpose of this chapter
is to discuss the hydraulic
model development and
calibration process of the
wastewater collection
system.
•Hydraulic Model
Development
•Flow Monitoring Program
•Hydraulic Model
Calibration
32
Item 1.
Existing Modeled WW System
33
Item 1.
Flow Monitoring Program 14 Flow Monitoring Sites
34
Item 1.
Hydraulic Model Calibration
•Dry and Wet
Weather
•Benchmark for
future
evaluations
•Calibration
results were
acceptable
Dry Weather
Wet Weather
35
Item 1.
Chapter 7 -Hydraulic Evaluation and Proposed
Improvements
Purpose of Chapter Key Chapter Elements
The purpose of this chapter
is to evaluate the existing
wastewater system and
recommend improvements
to mitigate existing
deficiencies and serve
future growth.
•Existing System Evaluation
•Recommended
Improvements
•Future System Evaluation
36
Item 1.
Existing System Evaluations
•Evaluated for
peak dry and
wet conditions
•Considered 10-
Year 24-Hour
Design Storm
•Capacity of
Existing
Pipelines is
Good.
Dry Weather
Wet Weather
37
Item 1.
Beaumont Mesa LS Improvements
•Critical Regional Lift
Station
•Planned
improvements to
mitigate deficiencies
•Replace existing pumps
(undersized)
•Complete parallel force
main (segment currently
offline)
•Expand wet well (lacks
sufficient emergency
capacity)
38
Item 1.
Lift Station
Capacity
Evaluation
•Capacity of Existing
Lift Stations not
adequate.
•Future growth
requires additional
lift station capacity
39
Item 1.
Future Capacity Improvements
•Red represent
existing pipe
deficiencies.
•Purple represent
existing pipes
needing upgrade
to service
growth
•Green lines
represent New
pipes to service
growth
40
Item 1.
Future System Evaluations
•Evaluated for
peak dry and
wet conditions
•Validates the
recommended
improvements
Dry Weather
Wet Weather
41
Item 1.
Chapter 8 –Capital Improvement Program
Purpose of Chapter Key Chapter Elements
The purpose of this chapter
is to summarize the City’s
Buildout and 10-Year Capital
Improvement Programs.
•Unit Costs
•Buildout Capital
Improvement Program
•10-Year CIP
42
Item 1.
Units Costs
•Documenting
Cost
Assumptions
43
Item 1.
Capital Improvement Program
•Prepare Capital
Improvement
Projects based
on
recommended
improvements
44
Item 1.
10-Year CIP
• Gravity Pipeline Improvements: $0.3 million
• Beaumont Mesa LS Improvements: $9.6 million
• Lift Station Condition Assessment Improvements: $3.6 million
• Operation and Maintenance Improvements: $5.1 million
• Wastewater Treatment Plant Improvements: $2.0 million
10-Year CIP Cost: $20.6 million
45
Item 1.
Buildout CIP
• Pipeline Capacity Improvements: $32.3 million
• Force Main Capacity Improvements: $21.2 million
• Lift Station Improvements: $34.6 million
• Other Wastewater System Improvements: $10.7 million
Total Cost: $98.9 million 46
Item 1.
Sewer System MP Summary Points
•Serving Existing Customers
•Capacity of Existing Sewer System is good.
•Capacity of Most Existing Lift Stations not adequate.
•Extending Service to Future Growth
•Future Capacity Pipeline Projects are Developer Driven.
•Deliverables
•Master Plan Document
•Hydraulic Model
47
Item 1.
Next Steps!
•Rate Study
•Pipeline Condition Assessment
(State and Federal Regulations)
•Lift Station Condition Assessment
•Update Master Plans every 5 years
48
Item 1.
Next Steps: Evaluate Condition of the Sewer System
Sewer system
pipes age over the
years, and if not
replaced on time,
they will fail
49
Item 1.
Methods for Evaluating Pipe Condition
•Age-based Replacement
Program
•Risk-based Replacement
Program
•Evaluate the Likelihood of Failure
•Evaluate the Consequence of
Failure
•Evaluate the total Risk Score
50
Item 1.
City of Beaumont
2021 Wastewater Master Plan
June 22, 2021
Workshop –Draft Master Plan
51
Item 1.