HomeMy WebLinkAbout5 - Final recommendation on Wastewater Utility Master Plan (WWUMP)
CITY OF BOULDER
WATER RESOURCES ADVISORY BOARD
AGENDA ITEM
MEETING DATE: May 18, 2009
AGENDA TITLE: Update on the Final Wastewater Utility Master Plan (WWUMP)
PREPARING DEPARTMENT:
Robert E. Williams - Director of Public Works for Utilities
Robert J. Harberg -Utilities Planning and Project Management Coordinator
Douglas Sullivan - Engineering Project Manager - Presenter
FISCAL IMPACT: There are no fiscal impacts at this time. However, staff will need to
analyze how to allocate future CIP funding associated with the recommended projects
identified in the WIAMU v P.
PURPOSE: This memorandum presents an update on the final Wastewater Utility Master
Plan.
EXECUTIVE SUMMARY:
The Wastewater Utility Master Plan
(WWUMP) is an overarching document that
„'rr
is intended to present key issues, programs,
projects, and associated budgets for the City's
Wastewater Utility including the collection
system, wastewater treatment plant, and
associated water quality and support
programs. The WWUMP is supported by The Wastewater Utility Master Plan is the overarching
three primary planning documents for the planning document for the Utility
Wastewater Utility: Wastewater Collection
System Master Plan (WWCSMP), Wastewater Treatment Plant Master Plan (WWTPMP), and
the Water Quality Strategic Plan (WQSP).
The mission of the Utilities Division is to provide quality water services, as desired by the
community, in a manner which -emphasizes efficient management of fiscal and natural resources,
and protects human and environmental health. In general, the planning process for the
Wastewater Utility focuses on identifying opportunities that continue the high level of service
AGENDA ITEM # 5 Page 1
provided to its customers and evaluating the associated cost of the opportunities. The
opportunities and recommendations resulting from the planning process take the form of capital
construction projects; system rehabilitation and repair projects; preparing systems and
operational processes that anticipate future regulations; and evaluating staffing needs.
Wastewater and water quality planning projects, such as the WWTPMP, WWCSMP, and WQSP
are the primary tools that provide the detailed analysis that result in the opportunities and
recommendations contained within the WWUMP.
A series of guiding principles, policies and implementation measures were used to define the
planning process for the Utility. The guiding principles for the WWUMP are based on Boulder's
planning approach to community sustainability through evaluating social, environmental, and
economic impacts associated with various program and projects within the city. Specifically, the
guiding three principles for the WWCM' are:
• Protect Public Health and Safety
• Protect Boulder's Natural Resources and the Environment
• Maximize the use of the Wastewater Utility's Funds
In general, the policies that support the guiding principles noted above are defined by the Boulder
Revised Code (BRC) and the Boulder Valley Comprehensive Plan (BVCP). The WWTPMP,
WWCSMP and the WQSP provide the implementation measures by defining planning elements,
requirements, recommendations, and, where applicable, identify capital improvement projects.
BACKGROUND
City staff presented a draft Wastewater Utility Master Plan (WWUMP) at the March 2009 Water
Resources Advisory Board (WRAB) meeting. The WWTPMP was accepted by the WRAB in
June 2007. The WWCSMP was accepted by the WRAB in December 2008. The WQSP was
accepted by the WRAB in April 2009.
FISCAL IMPACTS
There are no fiscal impacts at this time. However, Utilities will need to analyze how to allocate
future CIP funding associated with the recommended projects identified in the WWUMP. The
Final WWUMP is included as Attachment A. The 20-year GIP (2010-2030) is included as
Attachment B.
Wastewater Utility CIP
The Wastewater Utility Master Plan (WWUMP) includes a comprehensive list of Wastewater
Utility projects to be completed during the 20-year planning period. These include wastewater
treatment plant capital and maintenance related projects, as well as wastewater collection system
capital and maintenance related projects. The 2010-2030 Wastewater Utility Fund CIP has
numerous line items identifying various projects for the WWTP and the sanitary sewer collection
system. The significant CIP expenditures fall into the following three categories:
• WWTP Capital Projects
• WWTP Rehabilitation Projects
• WWCS Rehabilitation Projects
AGENDA ITEM 4 5 Page 2
WWTP Capital Proiects
There are five (5) significant WWTP capital projects currently identified in the 20-yr CIP. The
total cost of these projects (in 2008 dollars) is estimated at $40,000,000. These projects, their
estimated cost, and their projected timing are listed below:
• UV Disinfection - $4,400,000 - 2010
• Digester Modifications - $4,000,000 - 2010
• Headworks Improvements - $15,600,000 - 2016
• Phase 2 Improvements (Nutrient removal) - $15,000,000 - 2020
• Endocrine Disrupting Compounds (EDC's) removal - $19,000,000 - 2030
Utilities staff is currently completing a WWTP Evaluation project which is an analysis of the UV
Disinfection, Digester Modifications, and Headworks Improvements projects. This analysis will
present several process alternatives for the various facilities, their respective estimated costs, and
will provide a recommendation regarding their overall priority.
WWTP Rehabilitation Proiects
In addition to the WWTP capital projects listed above, there are numerous WWTP rehabilitation
projects identified in the CIP to address the plant's aging infrastructure. These projects are listed
in the CIP in years 2016 through 2030, and have a combined cost (in 2008 dollars) of
$8,500,000. Utilities staff is in the process of reviewing the WWTP rehabilitation analysis and
associated project recommendations.
WWCS Rehabilitation Proiects
There are numerous wastewater collection system improvement projects currently identified in
the 20-yr CIP. These projects were identified in the Wastewater Collection System Master Plan
which was accepted by the WRAB in December 2008. The CIP currently lists four (4) Tier 1
projects (highest priority) and seven (7) Tier 2 projects (second highest priority). The total cost
(in 2008 dollars) for these eleven projects is estimated at $28,000,000. The Tier 1 and Tier 2
project groups are listed below with their estimated cost and projected timing:
• Tier 1 Projects - $5,000,000 - 2016 through 2021
• Tier 2 Projects - $23,000,000 - 2021 through 2030
Water Quality Strategic Plan
The Water Quality Strategic Plan (WQSP) identified a number of recommendations
• Adopt the strategic plan's water quality goals in to the BVCP
• Incorporate water quality goals into citywide planning efforts and City regulations, policies
and procedures.
• Develop annual work plans and water quality reports
• Prepare for future water quality regulations.
Wastewater and Environmental Laboratory Program
• Perform Business Case Evaluation
• Staffing Analysis
AGENDA ITEM # 5 Page 3
Industrial Pretreatment
• Modify existing City Code to address grease removal equipment and develop enhanced
inspection process
• Perform a Business Case Evaluation for investment in a Fats, Oil and Grease Program
a Identify all food service establishments requiring grease removal
o Develop a policy on how to address food service establishments that do not have
grease removal equipment.
Investment Program Options
The W WUMP presents three Utility investment programs based on different levels of funding
including: the Fiscally Constrained Plan, the Action Plan, and the Vision Plan. These programs
implement the policy direction of the WVi UMP at the three funding levels.
Fiscally Constrained Plan
The Fiscally Constrained Program reflects an investment strategy which assumes an annual
Wastewater Utility Fund rate increase of two percent (2%) in 2010, and a three percent (3%)
annual increase in years 2011 through 2030. Under the Fiscally Constrained program, there are
numerous programs and projects which would be either eliminated or have reduced funding.
These include the following:
• Either the UV Disinfection or the Digester Modifications project (both scheduled for
construction in 2010) would have to be eliminated in the 20-year CIP
• The 2016 Headworks Improvements project would be eliminated from the 20-year CIP
• The 2020 Phase 2 Improvements project (Nutrient Removal) would be eliminated from the
20-year CIP
o This project would likely be required to address CDPHE permit issues
• The 2030 Endocrine Disrupting Compounds (EDC) removal project would be eliminated
from the 20-year CIP
o This project would likely be required to address CDPHE permit issues
• The WWTP Rehabilitation funding would be eliminated from the 20-year CIP
• The Wastewater Collection System Replacement projects (Tier 1 and Tier 2) would be
eliminated from the 20-year CIP
• The Sanitary Sewer System Rehabilitation funding would be eliminated from the 20-year
CIP
• Future budget supplementals would be eliminated from the 20-year CIP
Action Plan
The Action Program reflects an investment strategy which assumes an annual Wastewater Utility
Fund rate increase of four percent (4%) in years 2016 through 2030, with the following
exceptions. The Action Plan will follow the recommended 6-year (2010-2015) CIP which
includes the following rate increases: 2010=2%, 2011-2012=3%, 2013=4%, 2014-2015=6%.
There is one period of increased funding which is necessary to maintain a positive fund balance
in 2030. Two consecutive years (2019 and 2020) of nine percent (9%) rate increase would be
required to fund the Nutrient Removal project. Under the Action Plan, there are a few programs
AGENDA ITEM # 5 Page 4
and projects which would be either eliminated or have reduced funding. These include the
following:
• The 2030 Endocrine Disrupting Compounds (EDC) removal project would be eliminated
from the 20-year CIP
o This project would likely be required to address CDPHE permit issues
• The Wastewater Collection System Replacement projects (Tier 2) would be eliminated from
the 20-year CIP
Vision Plan
The Vision Program reflects an investment strategy which assumes an annual Wastewater Utility
Fund rate increase of four percent (4%) in years 2010 through 2030 with the following
exceptions. There are three periods of increased funding necessary to maintain a positive fund
balance in 2030. Two consecutive years (2014 and 2015) of eight percent (8%) rate increases
would be required to fund the Headworks Improvements project. Two consecutive years (2019
and 2020) of eight percent (8%) rate increases would be required to fund the Nutrient Removal
project. Two consecutive years (2029 and 2030) of eight percent (8%) rate increases would be
required to fund the EDC Removal project. Under the Vision Plan, there are no programs that
would have reduced funding.
ANALYSIS
A lengthy Analysis section was included in the March 23, 2009 Water Resources Advisory Board
Agenda Item.
OTHER IMPACTS: None
OTHER BOARD AND COMMISSION FEEDBACK: None
PUBLIC FEEDBACK: None
STAFF RECOMMENDATION:
Utilities staff recommends that the WRAB accept the Wastewater Utility Master Plan (WWUMP)
recommendations including the priorities assigned to the various projects and provide any other
recommendations concerning the allocation of Capital Improvement Program (CIP) funding to these
projects and other funding options that the WRAB would like Utilities staff to consider.
Attachments:
A. Final Wastewater Utility Master Plan - Executive Summary
B. 20-year CIP (2010-2030)
AGENDA ITEM # 5 Page 5
Wastewater Utility Master Plan
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im
EXECUTIVE SUMMARY
Introduction
The Wastewater Utility Master Plan (WWUMP) is the overarching planning document that is
intended to present key issues, programs, projects and associated budgets for the collection
system, wastewater treatment plant and water quality programs. The WWUMP is supported by
.three primary planning documents for the Wastewater Utility: the Wastewater Collection System
Master Plan ("'CSMP), the Wastewater Treatment Plant Master Plan (WWTPMP), and the
Water Quality Strategic Plan (WQSP).
Boulder's wastewater collection system and the 75t"
Street WWTP serve residences and businesses within
the 26 sq. mule W,srewater Utility Service Area (W11S /
E !
,
_ 1 ~
Areas outside the WUS.A bOLIndar_y are served by other / bay,
utility districts or septic systems. Boulder's wastewater
collection system currently series a population of
approximately 110,000 peopp le and 101,000 employees
~ ~J•-I_
associated with commercial and industrial business. CooseCreek -
Projected growth is anticipated to occur primarily
through in-fill and redevelopment projects resulting in
an estimated 128,000 people and 156,000 employees
within the W - S A. L Boulder Creek
A series of guiding principles were used to define the SouM Boulder Creek
planning process for the Utility. These guiding
principles are based on Boulder's planning approach to
Boulder's Wastewater Utility Service Area
community sustainabihty through evaluating social, encompasses 26 sq.mi. and contains five
environmental and economic impacts associated with interceptor sewer basins
various program and projects within the city.
Specifically, the three guiding principles for the WWUMP are:
Protect Public Health and Safety
/ Protect Boulder's Natural Resources and the Environment
/ Maximize the use of the Wastewater Utility's Funds
Wastewater Utility Master Plan
Wastewater Treatment Plant Master Plan
The Wastewater Treatment Plan Master Plan (WW'TPNfP) documents past decisions, the
current facility, and presents the approach that has been used to reach decisions on process
selection and introduce some future decisions that will be facing the utility. To continue to
provide the level of service required by federal regulations and match the expectations of the
community presented in the BVCP Goals, ongoing improvements to the treatment facility are
necessary.
The WW IP was upgraded in 2008 to meet fixture wastewater treatment capacity demands and
new ammonia-nitrogen limits that were incorporated in the CDPS permit. The upgrades
included improvements to both the liquid stream treatment and solids dewatering processes
(Phase 1). The current treatment capacity is 25.0 million gallons per day (mgd) on a maximum
month basis and provides adequate capacity to meet population growth past 2025 (the current
average annual flow rate is approximately 15 mgd). The Phase 1 improvements also kept the
future total nitrogen discharge at or below the current level. The solids dewatering process
improvements increased solids from the liquid stream treatment process and reduced the
volume of dewatered solids that must be transported from the WWTP site.
Phase 1B construction, currently planned for 2010-2011, will jinclude a UV disinfection system,
solids stabilization (anaerobic digester) improvements, and possibly improvements to the
headworks facility. Phase 2 construction, scheduled for 2020, includes expansion of the
bioreactor with improvements to biologically remove nitrate and phosphorus.
WWTP Evaluation
Even though the City of Boulder recently completed $45 million in major improvements to the
liquid and solids handling processes at the 75th Street Wastewater Treatment Plant, new
discharge permit requirements are expected in 2010 and will require bringing the entire facility
up to the same level of treatment capacity. As such, the City is currently in the process of
evaluating the WWTP's treatment process capabilities - specifically focusing on the following
three areas:
a Evaluate the plant's anaerobic digestion process (capacity, mixing, heating, etc.) and
recommend improvements to provide greater capacity and operational stability.
/ Evaluate UV disinfection alternatives to replace the existing gas chlorine and sulfur dioxide
systems.
p Evaluate the WW'IP's ability to meet the City's upcoming CDPHE permit effluent.
Wastewater Utility Master Plan
LOA 1---J
The WWI? Evaluation project is currently under way and recommendations are expected by
the fall of 2009. Design of the recommended improvements is scheduled for the end of the year
2009 with construction beginning in 2010.
Future WWTP Modifications
Discharge permit limits are revisited every five years, and it is anticipated that some level of TIN
and phosphorus removal may be required by future discharge permits. Additionally, the Boulder
WWI'P may be required to remove microconstituents. Microconstituents include very small
particles such as endocrine disrupting compounds and disinfection byproducts. Other future
projects identified in the CIP include modifications to, or the replacement of the Headworks
facility.
Wastewater Collection System Master Plan
The WWCSMP is a comprehensive planning document that assesses the conveyance capacity of
Boulder's sanitary sewer system and identities recommendations with associated capital cost
estimates to resolve conveyance capacity deficiencies. The collection system master planning
process included the following key elements-
Land Use and Flow Projections
1 Collection System Hydraulic Analysis
► Improvement Alternatives and Recommendations
/ Collection System Operation and Maintenance
► Collection System Rehabilitation Budgeting
Land Use and Flog Projections
Land use planning projections for both population and employment were developed within the
WUSA. There are three prominent planning documents that establish population and
employment projections for the WUSA. and included 1) 2007 DRCOG Traffic Analysis Zones,
2) 2007 WWTP Master Plan and 3) 2008 Boulder Valley Comprehensive Plan (BVCP). These
documents include consideration for both existing and future land uses, as well as historical and
projected population trends. The resulting land use population and employment projections are
summarized in the following table.
Wastewater Utility Master Plan
Year 2008 2015 2020 2025 Buildout
(2030)
Population 110,092 119,072 122,529 124,266 128,162
Employment 100,598 128,918 134,381 136,706 155,864
Total average dry weather flow (ADWF) or base flow projections in the collection system for
existing and fixture conditions are comprised of population, employment and Significant
Industrial User (SIU) contributions. The population and employment contributions are
combined with the unit flow factors of 102 gpd per capita and 50 gpd per employee. The SIU
contributions are based on 2006/2007 flow data from each user adjusted for domestic flow.
The resulting wastewater flow projections under annual average dry weather flow conditions are
summarized in the following table.
Year 2008 2015 2020 2025 Buildout (2030)
Population ADWF (mgd) 111.3 12.1 12.5 12.7 13.1
Employment ADWF (mgd) 5.0 6.5 6.7 6.8 7.8
SIU ADWF (mgd) 0.6 0.6 0.6 0.6 0.6
Total ADWF (mgd) 16.9 19.2 19.8 20.1 21.5
Z, L
The purposes of the conveyance system analysis were to 1) document the analysis of the
existing collection system during dry weather and wet weather flows and 2) to identify and
characterize hydraulic capacity issues. By analyzing the existing collection system under existing
and buildout flow conditions, problem areas were identified for both land use scenarios.
The primary source of data that was used for the collection system hydraulic model and analysis
was Boulder's sanitary sewer Geographic Information System (GIS) layers for manholes and
sewer pipes. The collection system pipes with identified capacity limitations, established from
the model results, were examined to identify likely hydraulic issues under the various flow
scenarios. There are a total of 138 pipes in the analyzed collection system with hydraulic
deficiencies identified. A detailed problem identification and characterization process was
completed to better understand the nature and extent of these problems. The hydraulic
problems were separated into two categories: Type A and Type B. Type A problems consisted
of a series of under capacity pipes that were hydraulically connected to one another. Type B
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Wastewater Utility Master Plan
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problems are isolated hydraulic restrictions that are not hydraulically connected to other
problem locations or series of problem pipes.
Recommended Collection System Improvements
The recommended system improvements were developed to resolve the existing and future
capacity issues are shown on the following figure. This figure includes both improvements that
address Type A and Type B problems.
The recommended improvements were grouped in three tiers to establish implementation
priority:
► Tier 1 projects address Type A problems and have the highest priority;
► Tier 2 projects also address Type A problems but have lower priority compared to Tier 1;
► Tier 3 projects address Type B problems which have the lowest priority.
The improvement priorities were assigned based on a number of qualitative factors including
the flow conditions in which they occur (existing versus future), extent of the problem, potential
for sanitary sewer overflows (SSOs) and service lateral backups, ease of constructability, and
relative benefit over other improvement projects. The resulting implementation priorities and
associated estimates of capital construction cost are shown in the following table.
Improvement Priority Capital Construction Cost
Tier 1 $4,977,000
Tier iI $22,664,000
Tier III $2,296,000
$29,937,000
Collection System Operations and Maintenance
The WWCSMP project team reviewed the collection system operations and maintenance
(O&M) procedures. The purpose of this O&M procedure was to review the current state of
collection system O&M practices and evaluate potential increases in service levels due to trends
in the regulatory environment in the western United States. In addition, the 2008 QualServe
peer review program and self assessment survey evaluated the Utility's overall performance,
efficiency and customer service as well as maintaining industry best management practices.
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Wastewater Utility Master Plan
Both the QualScrv program and the WWCSMP O&M review found that the Gravity System's
Maintenance group operates and maintains the collection system such that it continues to
provide a high level of service to its cxisting customers.
Collection System Rehabilitation Budgeting
Boulder developed a methodology for determining the mileage and cost of the 20-year CIP for
rehabilitating wastewater pipes and manholes. This methodology was based on spreadsheet
model that characterized pipe failure as a function of time to assist in forecasting long-term
budgetary needs for rehabilitation of sanitary sewer pipe. This analysis resulted in a
recommendation for an annual manhole and sewer pipe rehabilitation budget of $850,000. This
methodology was given an independent review which recommended that an annual sewer
rehabilitation budget of $500,000 would be adequate for the 20-year planning period.
Water Quality Strategic Plan
The Water Quality Strategic Plan (WQSP) is the first comprehensive planning effort to address
water quality policies and priorities for the City. The purpose of the WQSP is to develop clear
and concise water quality goals, develop recommendations and performance measures to
achieve these goals, and provide a process to address current and future water quality
challenges. The WQSP has been developed, and will be implemented by the City's Water
Quality and Environmental Services (WQES) Group within the city of Boulder Public Works,
Utilities Division. The WQES Group is funded through the city's Water, Wastewater, and
Stormwater enterprise funds and supports the Utilities Division water services with seven
programs. The Industrial Pretreatment JPJ) and Laboratory Services programs are included in
this WQSP as they are directly related to the wastewater utility planning effort.
► industrial Pretreatment / Water Conservation / Water Quality Planning
! Laboratory Services ► Water Quality Education / Stormwater Quality
► Drinking Water Quality
industrial Pretreatment Program
'T'he City's IPT program is part of the Public Works, Utilities, Water WQES Group. The
WQES Group serves as an in-house technical resource for Utilities and other City departments
to help maintain compliance with various levels of regulations. The current, primary purpose of
the city of Boulder IPT program is to control or limit the discharge of toxic or hazardous waste
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Wastewater Utility Master Plan
into the sanitary sewers and thus the City's 75th Street WWTP. The primary objectives of the
IPT program are described as follows:
/ To prevent the introduction of pollutants into the city of Boulder wastewater collection and
treatment system that could interfere with plant operation.
/ To prevent the pass-through of untreated pollutants into Boulder Creek.
► To improve recycling capabilities of sludge.
► To protect the general health and safety of wastewater treatment plant workers and downstream
users.
/ To encourage pollution prevention as a feasible alternative to treatment and disposal.
IPT Gaps, Deficiencies and Recommendations
In addition to the ongoing responsibilities of the IPT Program, special studies and/or additional
programs are necessary to further characterize industrial and commercial discharges to the city's
sanitary sewer system sources, support compliance with 1,VWTP discharge permit requirements
and collect data and information in preparation for future regulatory requirements. The
following programs or studies should be evaluated and modified or initiated as necessary.
/ Fats, Oil and (--'tease Program
o Evaluate potential modifications to the existing FOG program and regulations.
/ Industrial Waste Survey
o Consider initiating a comprehensive industrial waste surveys.
/ Business Inventory Mailing
o Send out business questionnaires to determine if targeted businesses continue to be non-significant or
move into a significant industrial user category.
Wastewater and Environmental Laboratory Program
The WEL Program currently provides broader support for the WWTP including biosolids
analysis, field services including water quality monitoring and management of the laboratory
information management system (LIMS) and database system. WEL program responsibilities
will continue to expand as increasingly complex and interrelated water quality regulations
develop.
WEL Program Gaps, Deficiencies and Recommendations
In addition to the ongoing responsibilities of the WEL Program, special studies and/or
additional programs are necessary to further characterize WWTP performance, characterize
water quality conditions in Boulder Creek and provide compliance support for State and Federal
regulations. It is recommended that the following programs or studies should be evaluated and
modified or initiated as necessary.
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Wastewater Utility Master Plan
/ Evaluate Laboratory Size and Function
o Perform Business Case Evaluation on the Wastewater and Environmental Laboratory Program
/ Staffing Analysis
o Review staffing levels compared to other municipalities.
/ Laboratory Maintenance
o Ongoing funding for equipment replacement and laboratory upgrades
Wastewater Utility CIP
The Wastewater Utility Master Plan (WWUMP) includes a comprehensive list of Wastewater
Utility projects to be completed during the 20-year planning period. These include wastewater
treatment plant capital and maintenance related projects, as well as wastewater collection system
capital and maintenance related projects. The 2010-2030 Wastewater Utility Fund CIP has
numerous line items identifying various projects for the WWTP and the sanitary sewer
collection system. The significant CIP expenditures fall into the following three categories:
/ WW'I`P Capital Projects
1 WWTP Rehabilitation Projects
► WWCS Rehabilitation Projects
'T'here are five (5) significant WW IP capital projects currently identified in the 20-yr CIP. The
total cost of these projects (in 2008 dollars) is estimated at $40,000,000. These projects, their
estimated escalated cost, and their projected timing are listed below:
/ UV Disinfection - $4,400,000 - 2010
► Digester Modifications - $4,000,000 - 2010
► Headworks Improvements - $15,600,000 - 2016
/ Phase 2 Improvements (Denitrification & Phosphorus removal) - $15,000,000 - 2020
► Endocrine Disrupting Compounds (FDC's) removal - $19,000,000 - 2030
Utilities staff is currently completing a WW 1P Evaluation project which is an analysis of the UV
Disinfection, Digester Modifications, and Headworks Improvements projects. This analysis will
present several process alternatives for the various facilities, their respective estimated costs, and
will provide a recommendation regarding their overall priority.
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Wastewater Utility Master Plan
WWTP Rehabilitation Projects
In addition to the WWTP capital projects listed above, there are numerous WWTP
rehabilitation projects identified in the CIP to address the plant's aging infrastructure. These
projects are listed in the CIP in years 2016 through 2030, and have a combined cost (in 2008
dollars) of $8,500,000. Utilities staff will continue to review the WWTP Rehabilitation analysis
annually to identify the estimated timing for the various rehabilitation projects within the 6-year
CIP.
WWCS Rehabilitation Projects
Lastly, there are numerous wastewater collection system improvement projects currently
identified in the 20-yr CIP. These projects were identified in the Wastewater Collection System
Master Plan which was accepted by the WRAB in December 2008. The CIP currently lists four
(4) Tier 1 projects (highest priority) and seven (7) Tier 2 projects (second highest priority). The
total cost (in 2008 dollars) for these eleven projects is estimated at $28,000,000. The Tier 1 and
Tier 2 project groups are listed below with their estimated cost and projecting timing:
► 'Pier 1 Projects - $5,000,000 - 2016 through 2021
► Tier 2 Projects - $23,000,000 - 2021 through 2030
Investment Program Options
The WWUMP presents three Utility investment programs based on different levels of funding
including the following:
► Fiscally Constrained Plan
► Action Plan
► Vision Plan
These programs implement the policy direction of the WWUMP at the three funding levels.
Fiscally Constrained Plan
The Fiscally Constrained Program reflects an investment strategy which assumes a Wastewater
Utility Fund rate increase of two percent (2%) in 2010, and a three percent (3%) annual increase
in years 2011 through 2030. Under the Fiscally Constrained program, there are numerous
programs and projects which would be either eliminated or have reduced funding. These
include the foll owing:
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Wastewater Utility Master Plan
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► Either the UV Disinfection or the Digester Modifications project (both scheduled for construction
in 2010) would need to be eliminated from the 20-year CIP
► The 2016 Headworks Improvements project would be eliminated from the 20-year CIP
/ The 2020 Phase 2 Improvements project (Nutrient Removal) would be eliminated from the 20-year
CIP
o This project would likely be required to address CDPHE permit issues
► The 2030 Endocrine Disrupting Compounds (EDC) removal project would be eliminated from the
20-year CIP
o This project would likely be required to address CDPHE permit issues
/ The WWTP Rehabilitation funding would be eliminated from the 20-year CIP
► The Wastewater Collection System Replacement projects (Tier 1 and Tier 2) would be
eliminated from the 20-year CIP
/ The Sanitary Sewer System Rehabilitation funding would be eliminated from the 20-year CIP
► Future budget supplementals would be eliminated from the 20-year CIP
.Ction Plan
The Action Program reflects an investment strategy which assumes an annual Wastewater
Utility Fund rate increase of four_ percent (4`%) in years 2016 through 2030, with the following
exceptions. The Action Plan will follow the recommended 6-year (2010-2015) CIP which
includes the following rate increases: 2010=2%, 2011-2012=3%, 2013=41%, and 2014-
1.015=6%. There is one period of increased funding which is necessary to maintain a positive
fund balance in 2030. Two consecutive years (2019 and 2020) of nine percent (99/6) rate
increases would be required to fund the Nutrient Removal project. Under the Action Plan,
there are a few programs and projects which would be either eliminated or have reduced
funding. These include the following:
1 The 2030 Endocrine Disrupting Compounds (EDC) removal project would be eliminated
from the 20-year CIP
o This project would likely be required to address CDPHE permit issues
► The Wastewater Collection System Replacement projects (Tier 2) would be eliminated from
the 20-year CIP
'~Zhsicn Plan
The Vision Program reflects an investment strategy which assumes an annual Wastewater Utility
Fund rate increase of four percent (4%) in years 2010 through 2030 with the following
exceptions. There are three periods of increased funding necessary to maintain a positive fund
balance in 2030. Two consecutive years (2014 and 2015) of eight percent (80/6) rate increases
would be required to fund the Headworks Improvements project. Two consecutive years (2019
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Wastewater Utility Master Plan f a
and 2020) of eight percent (80/6) rate increases would be required to fund the Nutrient removal
Improvements project. Two consecutive pears (2029 and 2030) of eight perceni (8%) rate
increases would be required to fund the EDC removal project. Under the Vision Plan, there are
no programs that would have reduced funding.
A
A B C D E F G H I J K L M N 0 P
1 ACTION PLAN _ CITY OF BOULDER 12-May-DR.
2 2010.2015 CAPITAL IMPROVEMENT PROGRAM
3 WASTEWATER UTILITY FUND
Assumed Inflation Rate 3.00% ESTIMATED 2008 2009 2010 2011 2012 2013 2014 2015 2018 201,7 2016 2019 2020
PROJECT NAME 2008 COST ACTUAL REVISED RECOMMENDEE PROJECTED PROJECTED PROJECTED PROJECTED PROJECTED PROJECTED PROJECTED PROJECTED PROJECTED PROJECTED
Wastewater Treatment
77 WWTP Pumps 421339 _ $0 SO SO $150,000 $0 `;~36 Dui? S0 _ $0 _ $D _ 50 _ 50
77 WWTP Permit Improvements 421617 3572,876 $345,659 $D SO so $0 S115,921 SO So 54 $0 $1,560,153 $0
WWTP Permit Improvements - Projected Bon( 425xxx $10.000,000 s0 SO $0 s0 $0 SO $0 s0 so so so $0 $14,257,609
WWTP Laboratory s0 _ $0 $0 $0 50 _ $0 _ $0 SO SO $0 $0 $0 $0
Lower Boulder Creek Enhancement 421661 $0 $0 _ $0 $0 _ $0 50 _ $0 _ $0 $0 _ 54 _ SD SO . $o
WWTP Headworks 421003 - $0 $300,000 SD so so $0 1 $0 $o So s0 $o
WWTP Headworks-Projected Bend $12,320,000 $0 $9 $0 so s9 $0 $0 s!r St`,vSfr;lSQt so $0 s0 $0
WWTP InsirumantationrControl 421437 s0 s0 $75,000 $0 So $0 s0 $0 so $0 5o so
$0 50 5100,000 ,Nri.],ID pn lt)0,0O0 iJ~?00 $O $0 _ So
WWTP Electrical - 421439 1 $o $0 $o
WWTP Activated Slodge _ $o $0 $o $0 $o ' :''1 $0 $0 $0 $o $0 - $o
WWTPPrimary Clabfars 421005 $0 SO _ SD 30 _ $300,000 $0 $0 $0 . $0 $o $0 $o _ $o
21 WWTP Secondary Clarifiers 421006 $0 $200,000 s0 $0 so 50 $0 _ $o _ $0 _ _ $0 $0 50. SO
WWTP UV Disinfeclica 421110 So 5443,456 so $D s0 SO $0 $0 $0 $0 $0 $0 So
WWTP UV Disinfection -Projected Bond $4,180,000 $0 $0 $4,434,562 $0 s0 $0 $0 So $o so $0 $0 $0
WWTP Permit Improvements- Bond Proceed: 423900 $5,951,235 $173.650 $0 so $o $0 $0 $0 $0 s4 s0 so so
Wastewater TreatmentRehabll4ation $0 so $0 $0 $o so $0 S1,000,000 $2,000,000 $2,000,000 5200,090 $200.000
Bond Issuance Costs 423998 $0 so $170,876 $o so s0 $0 S0 5102.954 SO so so S102,391
Subtotal - Wastewater Treatment Plant $6,524,111 51,462,965 34.680.438 5250,000 &300,000 5317,531 $215,927 $1,814,661 $16,809,561 $2,000,000
$2,000,000 $1,860,946 514,560.000
28
Marshall Landfill _
Marshall Land(ll $0 $0 5100,000 s0 So so $0 $0 $0 SD s0 $0 $0
Subtotal • Marshall Landfill L -1 SO s0 5100,000 so so so $0 $0 $0 $0 $0 so so
Btosolids Recycling
Valmont Butte 421675 5232,049 _ 5404,940 $0 _ $0 s0 SO _ SO $0 $0 $0 $0 _ $0 $0
0 s0 $0 _ $0 SO _ $o
35 Blosolids Handling & Dewaterin9 421670 $698,495 $106,270 _ $0 s0 $0 . 50 _ $150,000 S _
WWTP Biosolids Digester 421671 SO S963,074 $0 so 3'I SO $0 s0 $0 $0 so so so
WWTPBlosolidsDigester - BondProeeeds 424xxx $7,370,000 $0 $0 s0 $0 SO $0 $0 $0 SO $0 $0 $0
WWTP Cogeneration 421329 SO S20OMO SO SO s0 re 921-1 $0 $0 $0_ $0 $o $0 7 x;15
WWTP DigesterComptex 421007 _ $0 $50,000 $D $0 50 $0 $0 _ $0 $0 $0 _ $0 $0 $0
geserCleaning 421360 $0 $0 5'•` ,!pan $0 ~.t SO SO S0 $o$0 $0 50
WWTPDi
Subtotal - Bicsolids Recycling $980,544 81,774.284. 54.150.004 SD s0 $168,8_26 $150,000 $0. $0. $190,015 So $0 $207,635
42 Wastewater System Monitoring and Metering _
Yards Master Plan implementation 421039 $238,785 _ $121,215 _ 5D $0 s0 50 50 _ $0 _ SO $o $0 50 _ $0
Automated Meter Reading 421548 $4 SO s0 $0 $0 $0 $0 $0 $0 $0 so s0 $0
Utility Billing Computer System Replacement 421453 _ $10,920 S69.284 So $0 s0 so so s0 $0 $0 so $0 SD
47 Subtotal - Monitoring and Metering $249,705 $190,499 SO $0 s0 s0 $0 $0 50 so so 50 so
77
Collection and Conveyance System Rehabilitation
Collection System Monltomng 421450 _ S0 s0 s0 s0 s0 SO $0 $0 570.01;a s0 $0 s0
Sanitary Sewer Rnhebilitallon 427002 5914,904 $803,946 $cS a 5) ; 74 y; i;'r :+'910 dl 58`2107 5 1 45a :;y' 117 ~7
sk.~.:
52 San tary Sewer Manhole Rehabilitation $109,273 $112,551 _$115,927 $119,405 $122,987 $126,677 S130,477 5134.392 5130,423 $142,576
421454 '5164.248 $1 ,004 510$490
6,r6275 5562,754 $0 s4 s0 $O $0 SO $O S0
IBM Pump Elation 421521 $500,000 $0 $0 s0
j 'J P',:
I^'anProiecl ti7.lznu;i x202.025 i>>
Creai Y 1A Master Plan P 7171 1(13.006' $323346 51,332187
77 Loose Creek 3Master PlanProact 8 2000 J -
' Goose Creel 5 MaslerPlan Project SZ 559.000 $648,333 S'1,335.566 $1,375,833
BoafJer~rePkI1lasterPlanProeel $1653,001
c~2BouldtrGreek3MaslerPlanProiecl ° $1g39.000'I
T,,:[2BoulderCreek4MasterPlanProo)ec_t 51i.756.ooJ1
,
T,cr2 Goose Greek 4 Master Pton Project 1 $3.928,0103
7„r2GunbarrelIMasterPlanProjeol $1,116,000
7gr2Cunbarref2r;!usLrPfo5 Prninct $939,090 _ _
- . n a r r - 1 1, r rcie_ct $733,400
65 Subtotal - Sewer System Rehabilitation $1,079,152 $903,946 $636,540 $764,957 S1,238,060 $695,564 $716,431 5737,924 $1,400,395 $2,168,430
S2,505,329 $2,365,656 $1,691,523
Wastewater System Expansion
Annexation Related WW Svslem Expansion 421436 $0 $717,893 $0 $0 $9 $0 SD . SO s0 so s0 s0 so
Subtotal -Wastewater System Expansion s0 _ 5717,693 s0 - 50 . 50 50 SO . $0 . $0 . $0 $0 $0 50
TOTAL CAPITAL USES OF FUNDS $6,833,512 S5,049.587 $9.566.978_ $1,014,957 $1,538,060. $1,181,921 $1,082,359 $2,548,585 $18,217,956_ $4,358,445
$4,505,329 $4,226,602-$16459,1$8
520 2,862,277 2,825,340 09 oriq bud
523 5,951.235 283,006 encce
75- 8,833,512 1,767.591 capeo
- 0 173.1350 pond 5 _ E -
$5,049,587 08 rev bud
SURPLUSI(DEFICIT) vs. ALL RESERVES 510,899,636 S 6,609,722 $ 5,586,784 $ 4,498,861 S 9,092,587 S 2,366,372 5 2,243,959 S 1,238,191 -516,536,730 -$20,342,940,•$24,00
5,980 •$26,136,487.-$39,104,639
A 0 P 0 R S T U V W X Y Z AA
1 ACTION PLAN
2
Assumed Inflation Rate 2019 2020 2021 2022 2023 2024 2025 2026 2027 2028 2029 2030
PROJECT NAME PROJECTED pf
I PROJECTED PROJECTED PROJECTED PROJECTED PROJECTED PROJECTED PR
1 PROJECTED PROJECTED PROJECTED TOTAL
Wastewater Treatment
WWTP Pumps so s0 s0 $0 so so $0 So - s0 s0 ____so $0 $450,000
_TT LVWTP Permit Improvements si.swI53 $0 $0 s0 $0 S155.797 $0 SO $o $0 5180,611 SO $2,931,223
WWTP Permit Improvements - Projected Boni $0 $14,257,609 $0 50 50 SO SO $0 $0 $0 $0 $14,257,609
31 WWTP Laboratory $0 s0 $0 s0 $0 $0 $o s0 $0 s0 $0 $0 $0
Lower Boulder Creak Enhancement SO_ $0 $0 $0 $0 50 $0 $0 $0 $0 $0 SO $0
WWTPHeadworks $0 so s0 SO SO $0 SO SO 54' to $0 s0 $1.860,661
16 WWTP Headwoft - Projected Bond $0 so $0 $0 $o $0 SO $0 $0 $0 $0 s0 $15,606,607
WWTP Instrumentation7Control _ $0 5o so $0 5o 50 s0 SO 50 $0 _ $0 $0 $175,000
_TT WWTP Electrkal s0 so $0 so s0 s0 50 $0 $0 s4 $D SO 5400,000
WWTP Activated Sludge 5100.,"3 $0 $0 SO 50 50 SIOt,•!87 50 SO $0 $0 $0 $276,691
WWTP Primary Clarifiers $0 SO so $0 s0 s0 SO so $4 $0 $0 s0 $300,000
WWTP Secondary Clarifiers $0 So so s0 so so so $0 $0 $0 s0 s0 5200,000
WWTP UVD,sinfeclion $0 $0 so so 5o s0 SO s0 SO to $0 50 $443,456
WWTP UV Disinfection • Projected Bond s0 SO $0 $0 $O $0 $0 $0 50 s0 50 $0 54,434,562
'IT
WWTPPermtImprovements - BondProteed: SO So so SO SO SO $0 $0 $O $0 $0 $0 $6,124,885
Wastewater Treatment Rehabilitation $200,000 $200000 $500,00D $1.000,000 5200,000 $200,000 $11,000,0DO $200000 5200,000 $2,000,000
$2.000,000 S200.000 $12,900.000
Bond Issuance Costs 50 $102.391 5D SO $0 SO $0 $0 $0 $0 $0 $376,221
Subtotal - Wastewater Treatment Plant 51,860,946 $14,560,000 $500,000 $1,000,000 $200.000 $355,797 $1,108,367 $200,000 5200,000 52,000,000
52,180,611 $200,000 $60,736.915
Marshall Landfill
Marshall Landfill so SO $D $0 50 $0 $0 50 SO' $0 SO SO 5100,000
77 Subtotal - MarshallLandfll $0 SO SD 50 50 SO So 50 50 50 50 $0 $100,000
Biosolids Recycling _
34 Valmont Butte _ _$0 $0 SD $0 $0 $0 $0 50 54 50 SO $0 5716,989
Biosolids Handling 8 Dewatenng 50 SO $D $D _ $0 s0 SO SO _ SO' 50 $0 _ SO 5954,765
WWTP Biosolids Digester 50 $0 5o 5D 50 $0 $0 $0 _0- !0 $0 $0 $983,074
WWTP Biosolids Digester- Bond Proceeds SO $o $0 $D SD $0 $0 $0 $0 $0 $0 $0 54,000,000
WWTP Cogeneration s0 50 SD SD s0 $o $0 so So.-- $0 $831,826
WWTP Digester Complex $0 SO $0 $0 $0 $0 $0 $0 SO SO SO SO _ $50,000
WWTP Digester clearing $o SO SO s6 SO 23"sG,L,5 5o $0 $0 $0 $0 $0 $570,711
Subtotal- Blosolids Recycling s0 $207,635 $0 50 SO S233,695 5o $0 $255,365 $0 50 SO $6,110,365
Wastewater System Monitoring and Metering
Yards Master Plan Implementation $o s0 SO $o $0 SD s0 $0 $0 50 $o so 5360,000
Automated Meter Reading s0 50 _ SO SO 50 SD $0 s0 5o $o $0 $0 $0
Ulitity Billing Computer System Replacemem _ $o s0 $0 $0 so $0 So $0 SO So s0 So 580,204
Subtotal - Monitoring andMetedng s0 s0 s0 50 $0 s0 SO s0 $D $0 so $0 $440,204
48
Collection and Conveyance System Re_ha_billia_ I
Collection System Monitoring $0 $0 $71,288 $0 $0 _ $0 50 582.Cl $0 $1] $0 $0 $255,975
Sanitary Sewer Rehabilitation $,.92.11 $71288n $i1. ?Ci 575 , 9 r~e,~ X802.353 592erX4 SA51'21' E8 5903.05; 5ru 147 5056
a52 516.930292
Sanitary Sewer Manhole Rehabilitation $136,423 $142,576 $146,853 5151.259 $.155.797 $166.471 $165,265 $170,243 $175,351 $18.0.611
$186,029 _$1.91,610 $_3,306,536
IBM Pump Station $0 50 _ 50 . 50 $0 $0 s0 $0 s0 50 $0 50 5619,030
.n, , r! ter Pi,ii F~~%,dCl $242.929 S"313.175@ - - - - - -
•r I s Crc!, 4 1 1P FAa56;r Plan PT itCt 1.332.187
- -
erlGooseCreek3Mest~rG~nProtect $707833 S707:3~3
1 Goose Creek 5 Master Plan Protect 53.3`9 5?2
(2 Boulder Creek 1 Master Piaaecl SO
ilor 2 Bouklar Creek 3 Master Plan Pro $0
T_or 2 Boulder Creek 4 Master Plan Proitict
_ _ SO
-Ter 2 Goose Creek d Master Plan Proact $ l
Ter 2 Gunbonel 1 Masler Plan Prpject _ 50
63 Ter 2 Gunbarret 2 flastcr Plan nroiect So
Tmr 2 South 8(:,; : ;r. I klaslcr ~'a^ Pric, _ _ $0
Subtotal • Sewer System Rehabilitation $2.365,656 $1,691,523 $1,660,242 $907,554 5)34,780 $962,824 $991,709 $1,104,102 $1,052,104 $1,083,667
51,116,177 $1,149,662 $27,874,726
Wastewater System Expansion
68 AnnexalctiRolatcdWWSystem Expansion $0 s0 50 SO SO $D $0 SO s0 s0 $0 $0 $717,893
Subtotal -Wastewater System Expansion s0 s0 s0 s0 s0 $4 so SO so s0 $0 $0 $717,893
TOTAL CAPITAL USES OF FUNDS $4,226,602 $16,459,158 $2,160,242 $1,907,554 $1,134,780 $1,552,315 $2,100.075 _ $1,304,102 51,507,469 53,083,667
$3,296,788 51,349,662 , 597,980,103
-77
77
-77
SURPLU51(DEFICIT)vs,ALLRESERVES .-$.26,136,487,.539,104,639 -$38,825379.•$37,879,804.435,775,274,•533,878,238.-531,718,581 425,179,353 -$18,441,555 .$12,877,341 4
7,124,940.$ 1,749,106