(C ENTRAL S AN ) 2 D ESCRIPTION OF S EWER S YSTEM 1,540 mile sewer - - PowerPoint PPT Presentation

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(C ENTRAL S AN ) 2 D ESCRIPTION OF S EWER S YSTEM 1,540 mile sewer - - PowerPoint PPT Presentation

Aug 31, 2022 523 likes •886 views

P RESENTATION TO THE B UILDING I NDUSTRY A SSOCIATION C ENTRAL S AN D EVELOPMENT P ROCESS Danea Gemmell Planning and Development Services Division Manager Dana Lawson Senior Engineer-Development Kim Stahl Development Supervisor W HO IS C

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SLIDE 1

PRESENTATION TO THE BUILDING INDUSTRY ASSOCIATION

Danea Gemmell Planning and Development Services Division Manager Dana Lawson Senior Engineer-Development Kim Stahl Development Supervisor

CENTRAL SAN DEVELOPMENT PROCESS

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SLIDE 2

WHO IS CENTRAL CONTRA COSTA SANITARY DISTRICT (CENTRALSAN)

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SLIDE 3

DESCRIPTION OF SEWER SYSTEM

  • 1,540 mile sewer system
  • 145 square mile service area
  • 2nd largest collection system in

Bay Area after San Jose

  • 18 Pump Stations
  • 37,000 pipe segments
  • 31,000 manholes
  • Pipe Diameters: 4” – 102”
  • Oldest Pipe: 1913 (106 years old)

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SLIDE 4

SERVICE AREA

MARTINEZ, PLEASANT HILL, WALNUT CREEK, LAFAYETTE, ORINDA, MORAGA, ALAMO, DANVILLE, SAN RAMON 4

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SLIDE 5

CENTRAL SAN TREATS MORE THAN 35 MILLION GALLONS OF WASTEWATER PER DAY

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SLIDE 6

HOW DOES CENTRAL SAN’S COMPREHENSIVE MASTER PLAN AFFECT CAPITAL IMPROVEMENT PROGRAM?

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SLIDE 7

CENTRAL SAN’S ASSETS

79% Collection System

18% Treatment Plant 2% Recycled Water 1% General Improvements

Over $4 Billion Replacement Value

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SLIDE 8

CWMP MAJOR DRIVERS

Drivers Descriptions

1 Aging Infrastructure

Maintain performance and reliability of existing assets to ensure reliable collection and treatment of wastewater

2 Capacity

Increase capacity and redundancy of existing facilities to accommodate wastewater flows (wet weather) and loads. Projects that would be required to accommodate planned growth are not included in the CIP.

3 Regulatory

Reliably comply with regulatory requirements that are designed to protect human health and the environment & Plan for anticipated future regulatory requirements

4 Sustainability

Minimize life-cycle costs, maximize benefits, and achieve economic stability through optimization, resiliency, resource recovery, and energy projects

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SLIDE 9

SEWER REHABILITATION & REPLACEMENT RATE

  • Current Rate: ~0.3% per year
  • CWMP: ~0.5 to 2%/year

Timeframe Miles/Year %/Year 0-5 7.6 0.5 5-10 8.4 0.6 10-20 18.4 1.2 20-30 28.4 1.9 30-50 20.2 1.4 50-75 8.2 0.6 75-100 11.1 0.7

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SLIDE 10

Current 10 Year CIP FY 2018-19

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 $806 Million of Projects/Improvements

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SLIDE 11

Updating 10 Year CIP FY 2019-20

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 1 . New Total extended to FY 2028-29 (Rolling 10 Years)

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SLIDE 12

Updating 10 Year CIP FY 2019-20

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 2. New Total extended to FY 2028-29 (Rolling 10 Years & inflated 3%)

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SLIDE 13

 3. New Total extended to FY 2028-29 (Rolling 10 Year & inflated 3%)

with Updated cash flow

Updated 10 Year CIP FY 2019-20: $867M

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(*Presented 11/1/18) (*)

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SLIDE 14

MAJOR CAPITAL PROJECTS RECOMMENDED

FOR NEXT TWO FISCAL YEARS

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TREATMENT PLANT

  • Solids Handling

Improvements - Ph. 1

  • Steam, Aeration and

Blower System Renovations

  • Mechanical and

Concrete Renovations

  • POB Seismic Upgrades
  • HYPOWERS Bioenergy
  • Piping Renovation –
  • Ph. 10
  • UV Electrical

Improvements

  • Annual Infrastructure

Replacement

COLLECTION SYSTEM

Sewer Renovation projects:

  • Walnut Creek – Ph. 13
  • Lafayette – Ph. 13
  • S. Orinda – Ph. 7
  • Danville – Ph. 3
  • Large Diameter

Inspection Pump Stations:

  • Ph. 1 Moraga/Cross

Roads

  • Ph. 2 Martinez/

Fairview/Maltby

RECYCLED WATER

  • Filter Plant Upgrade

GENERAL IMPROVEMENTS

  • ERP Replacement
  • Server Room Relocation
  • Information Technology
  • Buildings Improvements
  • Vehicles Replacement
  • Equipment

Replacement

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SLIDE 15

HOW DOES AN INCREASED CIP AFFECT CAPACITY FEES?

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SLIDE 16

CAPACITY FEES

  • Capacity fee is an “equity buy-in” where new users pay

their fair share of Central San’s existing assets

  • Permanent entitlement to the parcel
  • The Residential Capacity Fee for a:
  • Single Family Home is $6,700
  • Multi-Family Unit is $5,675
  • Additional Pump Zone Fee is $1,636 per unit
  • Capacity fee factors take into account waste strength and

flow for actual businesses

  • Vary by business category (use) and square footage
  • Financing programs for businesses with large fees

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SLIDE 17

ACCESSORY DWELLING UNITS (ADUS) Many names: Cabana, Casita, Pool House, Carriage House, Artist Studio

  • Capacity fees are

collected for newly constructed ADUs

  • Capacity fees are

waived for many types

  • f ADU conversions

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SLIDE 18

CAPACITY FEE SUMMARY

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User Group Gravity Capacity Fee Pumping Capacity Fee Total Capacity Fee in Pump Zone Single-family residences $6,700 $1,636 $7,336 Multiple-family residences, apartments $5,675 $1,386 $7,061 Duplex $5,675 $1,386 $7,061 Mobile homes $5,675 $1,386 $7,061 Condominium $5,675 $1,386 $7,061 Accessory structure not meeting Accessory Dwelling Unit criteria $5,675 $1,386 $7,061 Accessory Dwelling Unit – within existing space $0 $0 $0 Accessory Dwelling Unit – new structure (Proportional Up to 1,200 sq. ft.) $2,848 $695 $3,544 Cities with Pump Zones Martinez Lafayette Moraga Orinda San Ramon

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SLIDE 19

CAPACITY FEE TREND BASED ON FUTURE CIP

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$5,995 $6,005 $5,948 $6,300 $6,700 $7,136 $8,024 $8,901 $9,553 $10,591 $25.1 $30.8 $36.8 $42.8 $45.5 $66.2 $92.0 $98.2 $102.6 $85.4 20 40 60 80 100 120

2,000 4,000 6,000 8,000 10,000 12,000

FY 2014-15 FY 2015-16 FY 2016-17 FY 2017-18 FY 2018-19 FY 2019-20 FY 2020-21 FY 2021-22 FY 2022-23 FY 2023-24

Annual Capital Project Spending (millions) $ per Single Family Home

Capacity Fees and Annual Capital Project Spending

Actual Projected Capital Projects

Note (1) Capacity Fees are reviewed annually and approved by Central San Board (2) Projected Capacity Fees which assume full CIP budget spent that year.

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SLIDE 20

CENTRAL SAN DEVELOPMENT ORGANIZATION CHART

Planning and Development Services Division Manager Danea Gemmell Senior Engineer- Development Dana Lawson Main Line Plan Review

Stephanie Gronlund

Permit Counter Kim Stahl Construction Inspection Paul Kelly Commercial Pretreatment Plan Review Tim Potter

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SLIDE 21

PERMITTING PROCESS

Mainline Extension Building Connections (Permit Counter)

Planning/ Pre-Application

  • Will Serve Inquiry
  • Hydraulic Capacity Analysis
  • Will Serve Letter
  • Pre-Application Meeting
  • Alignment Alternatives
  • Right-of-Way & Access Requirements
  • Preliminary Fee Quote
  • Submittal Requirements

Design

  • Alignment Approval
  • Potholing required to finalize

alignment

  • Plan Review
  • Signed Right-of-Way Instruments
  • Building Plan Review
  • Final Fee Quote

Construction/ Permit

  • Permit Issuance
  • Construction Inspection
  • Mainline Final Approval
  • As-Builts
  • Final Map
  • Project Security
  • Connection Permits
  • Construction Inspection

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SLIDE 22

UPCOMING DEVELOPMENT CHANGES

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  • 2019 Design and Construction

Standard Specifications

  • Updating to reflect current market

and development conditions

  • Including Recycled Water
  • Pretreatment standards
  • Revised Design Review Process
  • Electronic Cover Sheet template
  • Consolidated Comment Letters
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SLIDE 23

REVISING THE DESIGN REVIEW PROCESS

FOR MAINLINE EXTENSIONS

  • Application
  • Fees (application)
  • System Map and Profile with proposed alignment

10% Submittal

  • System Map and Profile of final alignment including:
  • potholing
  • utility locating
  • right-of-way needs identified
  • benchmark statement
  • Variance Request(s)

35% Submittal

  • 2 Full Plan Sets (24x36")
  • Draft ROW Instrument(s)

65% Submittal

  • 2 Full Plan Sets (24x36")
  • ROW Instrument(s) – signed & notarized

95% Submittal

  • Final Plans
  • 5 sets (24x36”), wet-signed & stamped, including:
  • PDF of final plans
  • DWG file of final alignment
  • Precast manhole bases
  • Cut Sheets
  • Owners Agreement – signed
  • Cost Estimate
  • Project Security
  • Fees (ROW review, inspection)

100% Submittal

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SLIDE 24

ELECTRONIC DRAWING TEMPLATES

FOR MAINLINE EXTENSIONS

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SLIDE 25

7 THINGS TO KNOW ABOUT DEVELOPMENT SERVICES

AT CENTRAL SAN

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SLIDE 26
  • Submittal Requirements
  • Estimated Processing Time
  • Preliminary Fee Quote
  • District Code interpretation
  • Plan Review expectations
  • Phasing of Acceptance
  • 1. PRE-APPLICATION MEETINGS

CAN IDENTIFY REQUIREMENTS BASED

ON YOUR PROJECT SCOPE

The more informed applicants and staff can be, the quicker the plan review and permit issuance.

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SLIDE 27
  • 2. POTHOLING REQUIRED IN

DESIGN PHASE

Sewers flow by gravity, so elevations and conflicts with existing utilities are critical during design:

  • “Locate” and survey existing utilities
  • “Pothole” point-of-connection with existing sewer and

potential utility conflicts

  • Ensure same benchmark & datum used by all

engineers, surveyors, etc.

  • Both must be shown in the “1st Preliminary Plan”

Submittal and additional potholing may be required

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SLIDE 28

Lessons Learned from The Orchards

  • Communicate all Scheduled Openings
  • Central San worked with phased schedule to develop interim

solutions

  • All standards need to be met at Final
  • 3. COMMUNICATE EARLY AND OFTEN

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SLIDE 29
  • Mainline Extension may be

required

  • Each individual parcel

must have its own sewer connection

  • Existing sewer laterals

may need to be upsized (4” to new 6”) or even replaced

  • 4. CURRENT DISTRICT CODES MUST BE MET

Pretreatment equipment may be required

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SLIDE 30

Capacity Fees may be Due

  • Non-residential fees are based
  • n property use and square

footage

  • Property Use factors are based
  • n strength and flow

All forms of Redevelopment

  • Complete

Demolition/Remodels

  • Expansion into adjacent space
  • Simple Tenant Changes
  • 5. CHANGE IN USE NEEDS REVIEW

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SLIDE 31
  • 6. SIMPLE DIFFERENCES CAN ADD UP

1,000 square foot business

  • ffice space pays approx.

$1,770 in Capacity Fees. 1,000 square foot medical

  • ffice space pays approx.

$3,825 in Capacity Fees.

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SLIDE 32
  • 7. SEWER MAIN ACCEPTANCE IS REQUIRED

BEFORE CONNECTION OF LIVING UNITS

Sewer Main Completion includes:

  • acceptable compaction test

results

  • top blocks
  • final paving

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SLIDE 33

IT’S NOT TOO SOON TO CALL ABOUT A PROJECT

CCCSD Permit Counter Monday – Friday 8:00 a.m. to 5:00 p.m. 925-229-7371 permits@centralsan.org

  • Encroachment Verifications
  • Capacity Fee Review
  • Code Compliance
  • Mainline Extensions

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SLIDE 34

Q&A

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