HomeMy WebLinkAboutWRAB 2016-3-28 Complete PacketWATER RESOURCES ADVISORY BOARD MEETING
MEETING DATE: Monday, 28 March 2016
MEETING TIME: 7:00 p.m.
MEETING LOCATION: Municipal Services Center, 5050 E. Pearl St., Boulder, CO 80301
Agenda Highlights:
Utilities Capital Improvements Program Open House 7-8 p.m.
1. Call to Order (8:00 p.m.)
2. Approval of Feb. 22, 2016 Meeting Minutes (8:01 p.m.)
3. *Public Comment (8:05 p.m.)
4. Information Item – Capital Improvement Program (8:15 p.m.)
5. Information Item – Carter Lake Pipeline (8:40 p.m.)
6. Matters from Board (9:15 p.m.)
7. Matters from Staff (9:20 p.m.)
8. Discussion of Future Schedule (9:25 p.m.)
9. Adjournment (9:30 p.m.)
* Public Comment Item
Agenda item times are approximate.
Information:
Please contact the WRAB Secretary email group at:
WRABSecretary@bouldercolorado.gov
Packets are available on-line at: http://www.bouldercolorado.gov – A to Z, Water
Resources Advisory Board (WRAB), Next Water Resources Advisory Board Meeting
WRAB Minutes
22 February 2016
Page No. 1
CITY OF BOULDER, COLORADO
BOARDS AND COMMISSIONS MEETING MINUTES
Name of Board / Commission: Water Resources Advisory Board
Date of Meeting: 22 February 2016
Contact Information of Person Preparing Minutes: Rene Lopez 303-413-7149
Board Members Present: Vicki Scharnhorst, Dan Johnson, Mark Squillace, Lesley Smith, Mike Barnes
Board Members Absent: None
Staff Present: Jeff Arthur, Director of Public Works for Utilities
Bob Eichem, Chief Financial Officer for the City of Boulder
Milford John-Williams, Budget Analyst
Bret Linenfelser, Water Quality and Environmental Services Manager
Ken Baird, Utilities Financial Manager
Annie Noble, Acting Principle Engineer for Flood and Greenways
Rene Lopez, Board Secretary
Consultants Present: None
Meeting Type: Regular
Agenda Item 1 – Call to Order [7:00 p.m.]
Agenda Item 2 – Approval of the 25 January 2016 Meeting Minutes [7:01 p.m.]
Motion to approve minutes from 25 January 2016 as amended.
Moved by: Squillace Seconded by: Smith
Vote: 5:0
Agenda Item 3 – Public Participation and Comment [7:13 p.m.]
Public Comment:
Carl Norby – Continuation of this presentation from last month about the use of a backflow preventer. Mr.
Norby believe this city should still not be recommending this product.
Catherine Long Gates –Monthly stormwater bill for her agricultural property is in excess of $400 a month.
An agricultural tenant that leases a portion of the property is paying $600 a month. Fee is not consistent
with impacts. Requesting relief from the city.
Agenda Item 4 – Information Item – Utility Financing [7:13 p.m.]
Ken Baird and Bob Eichem presented this item.
Executive Summary from the Packet Materials:
This memo serves as a brief introduction to the presentation at the February 22, 2016 meeting which will
give an overview of financing of the Water, Wastewater, and Stormwater/Flood Management Utilities. This
presentation is being provided as context as WRAB prepares to make recommendations on items such as
the annual Capital Improvement Program (CIP) and the upcoming rate study. The following areas will be
discussed:
Enterprise Funds: Each of the three utilities operates as a separate enterprise, which was defined in the
Colorado constitution through the Taxpayer’s Bill of Rights (TABOR) passed by Colorado voters in 1992.
TABOR defines an enterprise as “a government-owned business authorized to issue its own revenue bonds
and receiving under 10% of annual revenue in grants from all Colorado state and local governments
combined.” In any given fiscal year, no more than 10% of revenues can come from state and local grants,
which includes utility funding provided by the state or a district - such as the Urban Drainage Flood
Control District. This also includes any City of Boulder tax revenues, and currently the enterprises receive
no subsidy from other City funds. It is also important to note that Federal grants do not count towards the
10% rule.
Bonding: Each utility has current and future anticipated debt to finance large capital projects. The February
WRAB presentation will include discussion on the process for issuing debt and considerations when
deciding to bond. An important part of the process is getting the debt issue rated, and the City does this
through Standard & Poor’s and Moody’s, which rated the most recent utility bonds as AAA and Aa1,
respectively.
WRAB Minutes
22 February 2016
Page No. 2
Grants and Other Funding Options: Because of more attention on funding for flood projects following the
Sept. 2013 flood event, there has been interest in other ways to fund these improvements, including grants
or special districts. The presentation will include information about grant funding, and funding for utilities
through other methods.
Current Utilities Financial Picture: A general overview will be provided of the current state of the three
utilities, with information on future anticipated bonds and rate increases.
WRAB Discussion Included:
• Questions regarding the maximum amount of bonds the city can have
• Comments regarding the debt service coverage ratio
• Comments regarding how other city services are funded
• Questions regarding cost of issuance of bonds
• Comments regarding other revenue generating sources
Agenda Item 5 - Matters from Staff: [8:28 p.m.]
o Information item – rate study
Stormwater fee’s and equity upon all customer classes
Questions regarding the high rates for businesses
Requests for transparency in the scope of work
o Home resiliency grant
o Water main breaks
o Fluoride levels were lowered
o Farmers ditch; restoring capacity. Tree removal issues from residents
Agenda Item 6 – Matters from Board: [8:35 p.m.]
• WRAB Operating Agreements/Roles
o Agreed as amended
• Greenways advisory committee designee from WRAB after Vicki’s departure will be Leslie
Smith
Agenda Item 7 – Future Schedule [9:15 p.m.]
Request to possibly change the May meeting date; schedule will be finalized after the new member starts in
April.
March open house with CIP stations. Meeting held at normal time and convened after the open house.
Adjournment [9:29p.m.]
There being no further business to come before the Board at this time, by motion regularly adopted, the
meeting was adjourned at 9:29 p.m.
Motion to adjourn by: Smith Seconded by: Squillace
Motion Passes 5:0
Date, Time, and Location of Next Meeting:
The next WRAB meeting will be Monday, March 28th 2016 at 7:00 p.m., at the City's Municipal
Services Center, 5050 East Pearl St., Boulder, CO 80301
APPROVED BY: ATTESTED BY:
_______________________________ __________________________________
Board Chair Board Secretary
_____________________________ ___________________________________
Date Date
An audio recording of the full meeting for which these minutes are a summary, is available on the Water
Resources Advisory Board web page.
https://bouldercolorado.gov/boards-commissions/water-resources-advisory-board-next-meeting-agenda-and-packet
Page 1
CITY OF BOULDER
WATER RESOURCES ADVISORY BOARD
AGENDA ITEM
MEETING DATE: March 28, 2016
AGENDA TITLE: Update on 2017 Utilities Budget Process including updated six-year Utility
Fund Financials and current CIP
PRESENTERS:
Jeff Arthur, Director of Public Works for Utilities
Annie Noble, Acting Principal Engineer for Flood and Greenways
Douglas Sullivan, Acting Principal Engineer for Water, Wastewater and Stormwater
Ken Baird, Financial Manager
EXECUTIVE SUMMARY:
As part of the city’s annual budget process, Utilities develops a six-year planning budget, this year
for the time period of 2017 through 2022. Within this process, funds are appropriated for the first
year, 2017. The Water Resources Advisory Board (WRAB) role in this process is defined in the
Boulder Revised Code; “. . . to review all environmental assessments and capital improvements
conducted or proposed by the utilities division.” This agenda item is intended to initiate this process
by providing:
Background information
Anticipated CIP highlights
Schedule of key milestones
For reference, this packet includes materials from the adopted 2016 Utilities Budget and the 2016-
2021 Utilities Capital Improvement Program (CIP) which was approved by City Council last fall.
This information can be found in Attachment A – Water Utility, Attachment B – Wastewater
Utility and Attachment C -Stormwater / Flood Management Utility. In addition, the citywide CIP
document (2016 Annual Budget Vol. II) and other budget documents can be found in a links on the
following webpage: https://bouldercolorado.gov/budget.
No formal action by the WRAB is requested at this time. WRAB recommendation on the CIP will
be scheduled for the June 20 meeting. A public hearing will be scheduled for both the May 16 and
June 20 budget discussions.
BACKGROUND:
The Utilities Division’s primary focus 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. Each of the city’s three utilities (water, wastewater
and stormwater/flood management) is a separate enterprise fund established to finance and account
for the acquisition, operation and maintenance of each utility’s facilities and services while
Page 2
maintaining designated reserves and meeting debt service requirements. As enterprise funds, each
utility is self-supporting and receives no subsidies from other city funds and all utility revenues
remain within their respective funds.
Revenues generated from monthly utility bills are the largest source of revenue for each utility.
Other significant sources of funds include development fees (plant investment fees) related to new
construction, hydroelectric revenues, funding from the Urban Drainage and Flood Control District
(UDFCD) and interest earnings.
The CIP development process identifies large capital projects (over $50,000) in each of the three
utilities and creates a funding plan. Generally, the projects are identified through various utilities
master plans, asset management practices, regulatory requirements, and community priorities. In
the budget process, WRAB reviews the proposed CIP and provides a recommendation for Planning
Board and City Council approval. Since the CIP has a significant impact on utility rates, staff also
seeks recommendation regarding the proposed rate increases.
2017-2022 CIP HIGHLIGHTS
In the April WRAB CIP agenda item, staff will provide a draft 2017-2022 CIP that will include a
detailed funding plan by year, and also draft fund financials showing the overall revenue and
expenditure picture for each fund, including anticipated rate increases. The following are some of
the important projects that will be highlighted through this process, and discussed at the CIP open
house.
Water Fund
Treated Water
The Betasso Water Treatment Facility improvements project construction phase will begin in late
2016 with completion anticipated in early 2019. There were originally Betasso related
improvements scheduled for 2021 and 2026 , but these projects have been consolidated into a single
larger project to be bid this year. Consolidating these projects takes advantage of the economies of
scale, meets various Colorado Department of Public Health and Environment (CDPHE)
requirements, and also utilizes the favorable bond rates available at this time.
A Boulder Reservoir Water Treatment Facility project is identified in the 2020 CIP budget to
address filter valves, filter media, residuals handling, backup power and various site improvements.
The estimated project cost is $2,000,000. There is also a resiliency project underway at Boulder
Reservoir to improve plant backup power along with lowering the carbon footprint and energy bills
through the electrical improvements, the addition of batteries, backup generation and solar panels.
The project is currently in the proposal solicitation stage and partially funded by federal grant
money. The decision and scope of the 2016 and 2017 resiliency project may further reduce the 2020
project. Clarity should be achieved and detailed in next year’s CIP budget process.
Funding for treated water transmission infrastructure includes both assessment and replacement of
critical large diameter pipes. A project to replace and rehabilitate 12,500 feet of 18 -inch diameter
steel water line in pressure zone 3 is currently in design. The project will begin late this year with
construction occurring over two consecutive winter periods, ending in spring 2018. Additional
Page 3
funds for the inspection and prioritization of other large mains in the City’s water transmission are
included in the CIP. These transmission pipes are 14” in diameter and greater and they constitute
around 65 of the 460 miles of treated water pipe that delineate our system.
The annual distribution main replacement program has been in place for over 15 years and has
focused on the 460 miles of treated water pipe 12-inch diameter and smaller that make up the
majority of the system (approx. 395 miles). At current levels, Utilities will be able to replace the
remaining ductile iron pipe (DIP) in 100 years. Work is done in collaboration with other
departments and prioritized through analysis and assessment of the distribution system.
Source Water
Final right-of-way purchasing and council approval for the Carter Lake Pipeline is slated for the
2016/2017 time period with final design in 2017 and construction scheduled for early 2018.
The Barker Dam Outlet System Rehabilitation Project is scheduled for design and construction in
2017 and 2018 respectively. The Barker Gravity Pipeline is scheduled for rehabilitation on an
annual basis beginning in 2017 for the next 15 years. Current CIP funding for this project is
$1,125,000 per year. City staff will be analyzing the potential to rehabilitate segments of the
pipeline on an accelerated basis based on present condition assessments and trenchless rehabilitation
technologies.
Green Lake No. 2 Dam, which is located in the upper watershed, is scheduled for a rehabilitation
project with design and construction in 2021 and 2022 respectively.
Wastewater Fund
The wastewater collection system condition assessment and rehabilitation funding was significantly
increased as part of the 2015 rate increases. The additional funding has allowed staff to implement
large-scale improvement projects with the goal of cleaning and inspecting the sanitary sewer system
within two years - 2016 and 2017 . The increased funding will also allow the rehabilitation of the
remaining non-PVC pipe within the next 20 years. In 2015 74,000 ft of sanitary sewer were lined
using cured-in-place-pipe and utilities staff anticipates lining another 80,000 ft in 2016. This is
approximately in line with the anticipated 20 year cycle and utilities staff anticipates continuing at
this rate throughout the 2017-2022 CIP. The Wastewater Collection System Master Plan
(WWCSMP) Update is being finalized at this time and will be presented to the WRAB at the April
2016 meeting.
The Wastewater Treatment Facility (WWTF) has two new projects in the six year CIP. The first is
necessary to address more stringent CDPHE effluent discharge regulations specific to phosphorus.
This project is identified in the CIP in year 2020 with an estimated construction cost of
$18,500,000. The second project involves modifications to the facility’s secondary digester. The
secondary digester floating cover has tipped on several occasions over the last decade requiring
rehabilitation projects and the digester taken offline. This project will replace the existing cover
with a more reliable alternative with design and construction projected in 2019 and 2020
respectively.
Page 4
Stormwater & Flood Management Fund
The city has a comprehensive flood management program designed to identify flood risks along the
major drainageways, reduce those risks, minimize loss of life and property damage, and support
recovery following major flood events. The overall process for meeting these objectives includes:
updating the Flood Insurance Rate Maps (FIRMs), developing mitigation plans to identify feasible
opportunities to reduce the risk of flooding and programming flood mitigation projects into the CIP.
Flood mitigation projects in the 2016 -2021 CIP focused on Fourmile Canyon Creek, based on
recommendations of the 2011 mitigation plan and South Boulder Creek, in anticipation of
completing a plan in 2015. Additional funding was also shown for projects along several of the
other major drainageways with the expectation of completing mapping studies and mitigation master
plans for these floodplains.
Since last year’s CIP was reviewed by WRAB, flood mitigation plans have been approved by
WRAB and Council for South Boulder Creek, Gregory Creek and Boulder Creek. In addition to
projects along Fourmile Canyon Creek, funding for projects along these three drainageways will
continue to be considered as part of the 2017 -2022 CIP process. A flood mitigation plan is
anticipated to be completed this year for Bear Canyon Creek and next year for Upper Goose,
Twomile, Skunk, King’s Gulch and Bluebell Creeks, at which time specific projects will be
programmed into the CIP.
Utilities staff is in the process of completing a comprehensive storm sewer system condition
assessment program which is anticipated to be completed in 2019. The condition assessment
program has focused on the University Hill and downtown areas in 2015 and 2016 . Early results
indicate there will be a need for significant storm sewer rehabilitation and replacement. Utilities
staff anticipates increased expenditures in the storm sewer rehabilitation program during the 2017 -
2022 CIP to address this need. The Stormwater Master Plan (SMP) Update is being finalized at this
time and will be presented to the WRAB at the April 2016 meeting.
CIP OPEN HOUSE:
The Utilities CIP Open House is scheduled for Monday, March 28 from 7 - 8 p.m. and will provide
the public and the WRAB an opportunity to learn more about the CIP process and projects included
on the 6-year CIP planning horizon. Each station will display maps, graphics, financial highlights
and explanations of how projects are prioritized. The Open House will be followed by the WRAB
meeting, which will include a verbal summary of open house discussions and an information item
presentation on the proposed Carter Lake Pipeline.
BUDGET SCHEDULE:
The current schedule of major budget milestones is provided below. Elements involving the WRAB
are highlighted in bold italics.
Page 5
Milestone Date
CIP Open House March 28, 2016
Draft CIP WRAB Discussion April 15, 2016
Budget Guidelines to Departments April 18, 2016
WRAB meeting – review updated CIP May 16, 2016
Proposed Budget Submittal to City Manager May 31, 2016
WRAB Recommendation on CIP/Budget June 20, 2016
Planning Board CIP Hearing July 28, 2016
City Council Study Session on Budget (CIP) Aug. 9, 2016
City Council Study Session on Budget Sept. 13, 2016
City Council Study Session on Budget (if needed) Sept. 27, 2016
City Council Consideration/Adoption of Budget Oct. 4 and Oct. 18, 2016
NEXT STEPS:
Staff will return to the WRAB’s April meeting for draft CIP review and discussion. At the June 17
WRAB meeting, staff will request that the WRAB provide a final recommendation concerning the
proposed 2014-2019 CIP to Planning Board and City Council.
Attachments:
A: Water – 2016 Budget Fund Financial and Capital Improvement Program
B: Wastewater - 2016 Budget Fund Financial and Capital Improvement Program
C: Stormwater/ Flood Management - 2016 Budget Fund Financial and Capital Improvement
Program
Attachment A CITY OF BOULDER
2016 FUND FINANCIAL
2014 2015 2016 2017 2018 2019 2020 2021
Actual Revised Approved Projected Projected Projected Projected Projected
Beginning of Year Fund Balance 34,394,472$ 37,283,402$ 33,680,656$ 30,225,313$ 30,198,798$ 35,916,673$ 35,583,298$ 38,282,899$
Sources of Funds
Operating-
Sale of Water to General Cust 20,232,876$ 22,363,662$ 23,528,592$ 25,461,486$ 27,553,185$ 29,816,739$ 31,071,211$ 32,378,472$
Projected Rate Increase - 1,118,183 1,882,287 2,036,919 2,204,255 1,192,670 1,242,848 1,295,139
Bulk/Irrigation Water Sales 233,116 143,050 143,050 143,050 143,050 143,050 143,050 143,050
Hydroelectric Revenue 2,395,835 2,217,600 2,226,600 2,177,730 2,313,000 2,313,000 2,313,000 2,313,000
Miscellaneous Operating Revenues 52,006 25,000 25,000 25,000 25,000 25,000 25,000 25,000
Non-Operating--
Plant Investment Fees 6,733,984 3,500,000 2,800,000 2,800,000 2,500,000 2,500,000 2,500,000 2,500,000
Connection Charges 235,060 130,000 130,000 130,000 130,000 130,000 130,000 130,000
Special Assessments (24,892) 2,505,000 5,000 5,000 5,000 5,000 5,000 5,000
Federal, State, County Grants 1,286,716 - - - - - - -
Interest on Investments 188,574 186,417 252,605 528,943 754,970 897,917 889,582 957,072
Rent, assessments and other misc revenues 92,128 20,500 20,500 20,500 20,500 20,500 20,500 20,500
Sale of Real Estate - 1,014,750 - - - - - -
Transfer from General Fund - Fire Training Center 92,785 92,785 92,811 92,827 92,843 92,859 92,875 92,891
Projected Bond Proceeds - - 24,240,000 - 37,915,263 - 10,455,509 -
Total Sources of Funds 31,518,187$ $33,316,947 $55,346,446 33,421,454$ 73,657,065$ 37,136,734$ 48,888,576$ 39,860,124$
Uses of Funds
Operating-
Administration 914,078$ 930,877$ 1,003,052$ 1,033,144$ 1,064,138$ 1,096,062$ 1,128,944$ 1,162,812$
Planning and Project Management 640,957 615,356 611,220 629,557 648,443 667,897 687,933 708,571
Water Resources and Hydroelectric Operations 2,254,874 2,622,787 2,754,443 2,928,076 3,065,919 3,214,896 3,375,343 3,547,603
Water Treatment 4,406,801 4,655,178 4,766,150 4,909,135 5,056,409 5,208,101 5,364,344 5,525,274
Water Quality and Environmental Svcs 948,877 1,042,902 1,003,455 1,033,559 1,064,565 1,096,502 1,129,397 1,163,279
Water Conservation 328,578 414,185 412,058 424,420 437,152 450,267 463,775 477,688
System Maintenance 3,025,098 3,134,469 3,227,533 3,324,359 3,424,090 3,526,812 3,632,617 3,741,595
Windy Gap Payment 2,093,254 2,634,004 2,618,958 2,314,181 251,200 258,736 266,498 274,493
Sick and Vacation Accrual 91,600 100,000 100,000 103,000 106,090 109,273 112,551 115,927
TOTAL OPERATING USES OF FUNDS 14,704,118$ 16,149,758$ 16,496,869$ $16,699,429 $15,118,006 $15,628,546 $16,161,402 $16,717,244
WATER UTILITY
Attachment A: Water – 2016 Budget Fund Financial and Capital Improvement Program
Attachment A CITY OF BOULDER
2016 FUND FINANCIAL
2014 2015 2016 2017 2018 2019 2020 2021
Actual Revised Approved Projected Projected Projected Projected Projected
WATER UTILITY
Debt-
BRWTP 1996 Revenue Bond; Refunding in 2006 858,469 857,708 858,531 - - - - -
Refunding of the 1999 and 2000 Revenue Bonds 2,523,521 2,522,054 2,517,388 2,524,233 2,524,650 1,375,102 - -
Lakewood 2001 Rev Bond; Refunded in 2012 2,057,000 2,065,733 2,065,950 2,065,333 2,072,083 2,080,817 2,081,367 2,088,883
Projected Bond-Betasso WTP Improvements - - 2,040,000 2,040,000 2,040,000 2,040,000 2,040,000 2,040,000
Projected Bond-NCWCD Conveyance Line - - - - 3,568,700 3,568,700 3,568,700 3,568,700
Projected Bond - Barker Dam - - - - - - 983,773 983,773
TOTAL DEBT SERVICE $5,438,990 $5,445,495 7,481,869 6,629,566 10,205,433 9,064,619 8,673,840 $8,681,356
Transfers -
Cost Allocation 1,255,221 1,020,728 1,189,353 1,248,821 1,311,262 1,376,825 1,445,666 1,517,949
Planning & Development Services 212,564 218,941 225,509 232,275 239,243 246,420 253,813 261,427
General Fund - City Attorney 52,888 59,665 58,937 61,294 63,746 66,296 68,285 70,334
TOTAL TRANSFERS OUT $1,520,673 $1,299,334 $1,473,799 $1,542,390 $1,614,251 $1,689,541 $1,767,764 $1,849,710
Capital $7,057,076 9,780,007 $9,209,251 8,679,585 3,192,329 11,196,676 9,243,011 12,318,145
Projected Bond - Betasso WTP IMP - - $24,000,000 - - - - -
Projected Bond - NCWCD Conveyance - - - - $37,565,263 - - -
Projected Bond - Barker Dam/Boulder Reservoir WTP - - - - - - $10,355,509 -
Projected Bond Issuance Costs - - $240,000 - $350,000 - $100,000 -
Encumbrances, Carryover and Adjustments to Base - 4,345,099 - - - - - -
Total Uses of Funds 28,720,857$ 37,019,693$ $58,901,788 $33,550,970 $68,045,280 37,579,381$ $46,301,526 39,566,455$
Sick/Vacation Accrual Adjustment 91,600$ 100,000$ 100,000$ 103,000$ 106,090$ 109,273$ 112,551$ 115,927$
Ending Fund Balance Before Reserves 37,283,402$ 33,680,656$ 30,225,313$ 30,198,798$ 35,916,673$ 35,583,298$ 38,282,899$ 38,692,495$
Reserves
Bond Reserve 3,034,796$ 3,034,796$ 5,074,796$ 4,221,429$ 7,790,129$ 7,790,129$ 7,398,800$ 7,398,800$
Lakewood Pipeline Remediation Reserve 15,852,739 16,262,501 17,223,131 18,212,981 19,232,937 19,962,812 21,035,991 22,141,813
FEMA Deobligation Reserve 87,951 87,951 87,951 87,951 87,951 87,951 87,951 87,951
Sick/Vacation/Bonus Reserve 592,681 610,461 628,775 647,639 667,068 687,080 707,692 728,923
Pay Period 27 Reserve 163,400 214,400 265,400 316,400 367,400 418,400 469,400 520,400
Operating Reserve 4,056,198 4,362,273 4,492,667 4,560,455 4,183,064 4,329,522 4,482,291 4,641,739
Capital Reserve 2,000,000 2,000,000 2,000,000 2,000,000 2,000,000 2,000,000 2,000,000 2,000,000
Total Reserves 25,787,765$ 26,572,382$ 29,772,721$ 30,046,854$ 34,328,549$ 35,275,894$ 36,182,126$ 37,519,625$
Ending Fund Balance After Reserves 11,495,637$ 7,108,274$ 452,592$ 151,944$ 1,588,124$ 307,405$ 2,100,773$ 1,172,870$
Note:307,405$
Operating reserve levels are based on industry standards and are maintained for revenue bonds, revenue fluctuations (weather and water usage impacts) and the capital intensive nature of the utility.
Attachment A: Water – 2016 Budget Fund Financial and Capital Improvement Program
Attachment A
1
2
3
4
5
6
7
8
9
12
13
14
15
16
17
18
19
20
21
22
23
2430
31
36
37
38
4041
42
45
4647
48
52
53
54
5556
57
58
61
62
63
64
65
66
67
68
74
7576
77
78
79
80
82
83
85
86
87
88
89
90
91
92
93
95
96
103
104
105
106
107
108
A K L M N O P
CITY OF BOULDER
2016-2021 CAPITAL IMPROVEMENT PROGRAM
WATER UTILITY FUND
Assumed Inflation Rate 2016 2017 2018 2019 2020 2021
PROJECT NAME APPROVED PROJECTED PROJECTED PROJECTED PROJECTED PROJECTED
F
Treated Water Pressure Reducing and Hydroelectric Facilities
Orodell Hydro/PRV Facility $75,000 $0 $0 $0 $0 $0
Sunshine Hydro/PRV Facility $0 $271,875 $0 $0 $0 $0
Pearl Street Hydro/PRV Facility $0 $0 $24,333 $243,331 $0 $0
Subtotal - Treated Water PRV and Hydro $75,000 $271,875 $24,333 $243,331 $0 $0
Water Treatment Facilities
Betasso WTF $900,000 $0 $0 $0 $0 0
Betasso WTF - Bond Proceeds $24,000,000 $0 $0 $0 $0 $0
Bond Issuance Costs $240,000 $0 $350,000 $0 $100,000 $0
Boulder Reservoir WTF $314,000 $0 $0 $0 $2,000,000 $0
Boulder Res WTF - Bond Proceeds $0 $0 $0 $0 $0 $0
Subtotal - Water Treatment Facilities $25,454,000 $0 $350,000 $0 $2,100,000 $0
Treated Water Storage Tanks
Kohler Storage Tank $799,875 $0 $0 $0 $0 $0
Chautauqua Storage Tank $0 $0 $0 $0 $0 $0
Betasso Storage Tank $0 $292,465 $0 $0 $0 $0
Subtotal - Treated Water Storage Tanks $799,875 $292,465 $0 $0 $0 $0
Treated Water Distribution System
Waterline Replacement $3,352,960 $3,487,078 ($0)$3,771,624 $3,922,489 $4,079,389
Subtotal - Treated Water Distribution System $3,352,960 $3,487,078 ($0)$3,771,624 $3,922,489 $4,079,389
Treated Water Transmission System
Zone 1 Transmission Pipes $0 $0 $250,000 $0 $0 $250,000
Zone 2 Transmission Pipes $0 $250,000 $0 $0 $250,000 $0
Zone 3 Transmission Pipes $1,200,000 $0 $0 $250,000 $0 $0
Subtotal - Treated Water Transmission System $1,200,000 $250,000 $250,000 $250,000 $250,000 $250,000
Source Water Transmission System
Lakewood Pipeline $0 $0 $0 $316,330 $0 $0
Subtotal - Source Water Transmission System $0 $0 $0 $316,330 $0 $0
Barker Water System
Barker Gravity Pipeline Repair $667,416 $1,169,859 $1,216,653 $1,265,319 $1,315,932 $1,368,569
Barker-Kossler Penstock Repair $0 $116,986 $0 $0 $0 $0
Barker Dam Outlet $100,000 $175,000 $0 $835,551 $0 $0
Barker Dam Outlet - Bond Proceeds $0 $0 $0 $0 $8,355,509 $0
Barker Dam and Reservoir $65,000 $50,000 $0 $0 $0 $0
Kossler Dam $75,000 $0 $0 $0 $0 $0
Subtotal - Barker Water System $907,416 $1,511,844 $1,216,653 $2,100,870 $9,671,441 $1,368,569
Raw Water Storage Reservoirs
Albion Dam $125,000 $0 $341,636 $3,416,361 $0 $0
Silver Lake Dam $0 $0 $100,000 $0 $0 $0
Island Lake Dam $0 $0 $50,000 $0 $0 $0
Green Lake 2 Dam - Bond Proceeds $0 $0 $0 $0 $0 $0
Green Lake 2 Dam $0 $0 $0 $0 $75,000 $486,773
Goose Lake Dam $0 $0 $75,000 $0 $0 $0
Boulder Reservoir $50,000 $0 $0 $0 $118,434 $0
Lakewood Dam $0 $0 $124,707 $0 $0 $0
Skyscraper Dam $0 $0 $0 $0 $0 $171,071
Wittemyer Ponds $0 $0 $0 $100,000 $492,685 $4,926,849
Subtotal - Raw Water Storage Reservoirs $175,000 $0 $691,343 $3,516,361 $686,119 $5,584,692
Other Raw Water Facilities
Farmer's Ditch $0 $0 $0 $108,160 $0 $0
Source Water Facilities Rehab Program $150,000 $150,000 $150,000 $150,000 $150,000 $150,000
Watershed Improvements $80,000 $0 $0 $0 $100,000 $0
NCWCD Conveyance - Carter Lake Pipeline $850,000 $2,036,322 $0 $0 $0 $0
NCWCD Conveyance/Waterline replacement - Bond Proceeds$0 $0 $37,565,263 $0 $0 $0
Subtotal - Other Raw Water Facilities $1,080,000 $2,186,322 $37,715,263 $258,160 $250,000 $150,000
Source Water Pressure Reducing, Pumping and Hydroelectric
Lakewood Hydroelectric/PRV $130,000 $0 $0 $300,000 $0 $0
Attachment A: Water – 2016 Budget Fund Financial and Capital Improvement Program
Attachment A
1
2
3
4
5
6
7
8
A K L M N O P
CITY OF BOULDER
2016-2021 CAPITAL IMPROVEMENT PROGRAM
WATER UTILITY FUND
Assumed Inflation Rate 2016 2017 2018 2019 2020 2021
PROJECT NAME APPROVED PROJECTED PROJECTED PROJECTED PROJECTED PROJECTED
F
109
110
111
112
113
117
118
119
120
121
126
127
128
129
134
135
136
137
Silver Lake Hydroelectric/PRV $25,000 $50,000 $80,000 $0 $0 $0
Boulder Reservoir Intake and Pumping $0 $0 $0 $0 $0 $0
Betasso Hydroelectric / Pressure Reducing Facility $0 $380,000 $480,000 $0 $0 $0
Barker Dam Hydroelectric 0 $0 $0 $0 $0 $0
Barker Dam Hydro $0 $0 $0 $0 $0 $0
Carter Lake Hydroelectric $0 $0 $50,000 $250,000 $0 $0
Carter Lake Hydro $0 $0 $0 $0 $2,500,000 $0
Source Water Pressure Reducing, Pumping and Hydroelectric Facility Rehabilitation$0 $0 $0 $0 $193,472 $201,210
Subtotal - Source Water PRV, Pumping and Hydro$155,000 $430,000 $610,000 $550,000 $2,693,472 $201,210
Water System Monitoring and Metering
Automated Meter Reading $0 $0 $0 $0 $0 $684,285
Water System Security/Quality Improvements $150,000 $150,000 $150,000 $90,000 $0 $0
Source Water Monitoring and Protection $100,000 $100,000 $100,000 $100,000 $0 $0
Utility Billing Computer System $0 $0 $0 $0 $125,000 $0
Subtotal - Water System Monitoring and Metering $250,000 $250,000 $250,000 $190,000 $125,000 $684,285
TOTAL CAPITAL USES OF FUNDS $33,449,251 $8,679,585 $41,107,591 $11,196,676 $19,698,520 $12,318,145
Attachment A: Water – 2016 Budget Fund Financial and Capital Improvement Program
Attachment B CITY OF BOULDER
2016 FUND FINANCIAL
WASTEWATER UTILITY
2014 2015 2016 2017 2018 2019 2020 2021
Actual Revised Approved Projected Projected Projected Projected Projected
Beginning Fund Balance 12,481,148$ 13,596,397$ 7,635,286$ 8,463,020$ 8,421,341$ 9,578,794$ 9,777,196$ 10,390,604$
Sources of Funds
Operating-
Sewer Charges to General Customers 13,850,189$ 14,126,140$ 18,400,711$ 19,359,388$ 20,368,012$ 21,429,186$ 22,545,646$ 24,849,811$
Projected Rate Increase 4,237,842 920,036 967,969 1,018,401 1,071,459 2,254,565 1,242,491
Surcharge/ Pretreatment Fees 127,274 118,000 118,000 118,000 118,000 118,000 118,000 118,000
Plant Investment Fees 2,221,937 700,000 700,000 700,000 700,000 700,000 700,000 700,000
Connection Charges 11,263 10,000 10,000 10,000 10,000 10,000 10,000 10,000
Special Assessments (9,795) 5,000 5,000 5,000 5,000 5,000 5,000 5,000
Federal & State Grants 681,482 1,486,018 - - - - - -
Interest on Investments 73,622 193,754 152,706 211,576 252,640 287,364 293,316 311,718
Rent and other miscellaneous revenue 5,423 1,500 1,500 1,500 1,500 1,500 1,500 1,500
Sale of Real Estate - Yards Masterplan - 357,375 - - - - - -
Bond Proceeds - 10,125,000 - - - - 20,625,000 -
Total Sources of Funds 16,961,395$ 31,360,629$ 20,307,952$ 21,373,433$ 22,473,553$ 23,622,509$ 46,553,027$ 27,238,520$
Uses of Funds
Operating-
Administration 581,235$ 585,713$ 632,454$ 651,428$ 670,970$ 691,100$ 711,833$ 733,188$
Planning and Project Management 268,324 386,778 404,733 416,875 429,381 442,263 455,531 469,196
Wastewater Quality & Environmental Svcs 1,127,229 1,392,332 1,393,904 1,435,721 1,478,793 1,523,157 1,568,851 1,615,917
System Maintenance 1,640,118 1,923,718 1,681,345 1,731,785 1,783,739 1,837,251 1,892,369 1,949,140
Wastewater Treatment 4,872,877 5,166,106 5,113,656 5,267,066 5,425,078 5,587,830 5,755,465 5,928,129
Sick/Vacation Accrual (71,987) 75,000 75,000 77,250 79,568 81,955 84,413 86,946
TOTAL OPERATING USES OF FUNDS 8,417,797 9,529,647 9,301,092 9,580,125 9,867,529 10,163,554 10,468,461 10,782,515
Debt-
2012 Refunding of the WWTP 2005 Revenue Bond 3,463,046 3,439,462 3,199,450 3,177,125 3,153,292 3,145,375 3,132,458 3,124,750
WWTP UV, Digester, Headworks Imp 2010 Rev Bond 673,529 672,638 673,863 670,938 672,700 674,013 669,888 671,688
WWTP Nutrient Compliance Bond 2020 1,947,500 1,947,500
Sanitary Sewer Rehabilitation Bond 2015 900,000 900,000 900,000 900,000 900,000 900,000 900,000
TOTAL DEBT SERVICE 4,136,575 5,012,100 4,773,313 4,748,063 4,725,992 4,719,388 6,649,846 6,643,938
Attachment B: Wastewater - 2016 Budget Fund Financial and Capital Improvement Program
Attachment B CITY OF BOULDER
2016 FUND FINANCIAL
WASTEWATER UTILITY
2014 2015 2016 2017 2018 2019 2020 2021
Actual Revised Approved Projected Projected Projected Projected Projected
Transfers-
Cost Allocation 900,430 756,671 879,372 923,341 969,508 1,017,983 1,068,882 1,122,326
Planning & Development Services 213,210 219,607 226,195 232,981 239,970 247,169 254,584 262,222
General Fund - Utilities Attorney 17,629 19,888 19,646 20,432 21,249 22,099 22,983 23,673
TOTAL TRANSFERS OUT 1,131,269 996,166 1,125,213 1,176,754 1,230,727 1,287,251 1,346,449 1,408,221
Capital Improvement Program $2,073,371 6,768,978 4,355,600 5,987,421 5,571,420 7,335,867 6,934,277 7,242,543
2011 Bond-UV, Digester, Headworks IMP $15,148 1,198 - - - - - -
Projected Bond-WWTP Improvements - - - - - - $20,500,000 -
Projected Bond-Sanitary Sewer Rehab - $10,000,000 - - - - -
Bond Issuance Costs - 125,000 - - - - 125,000 -
Carryover, Encumbrances and Adjustments to Base - 4,963,651 - - - - - -
Total Uses of Funds 15,774,160$ 37,396,740$ 19,555,218$ 21,492,363$ 21,395,668$ 23,506,061$ 46,024,033$ 26,077,216$
Sick/Vacation Accrual Adjustment (71,987)$ 75,000$ 75,000$ 77,250$ 79,568$ 81,955$ 84,413$ 86,946$
Ending Fund Balance Before Reserves 13,596,397$ 7,635,286$ 8,463,020$ 8,421,341$ 9,578,794$ 9,777,196$ 10,390,604$ 11,638,853$
Reserves
Bond Reserves 670,139$ 1,570,139$ 1,570,139$ 1,570,139$ 1,570,139$ 1,570,139$ 3,517,139$ 3,517,139$
FEMA Deobligation Reserve 36,445$ 36,445$ 36,445$ 36,445$ 36,445$ 36,445$ 36,445$ 36,445$
Sick/Vacation/Bonus Reserve 602,059 620,120 638,724 657,886 677,622 697,951 718,890 740,456
Pay Period 27 Reserve 142,480 181,480 220,480 259,480 298,480 337,480 376,480 415,480
Operating Reserve 2,387,266 2,631,453 2,606,576 2,689,220 2,774,564 2,862,701 2,953,728 3,047,684
Capital Reserve 500,000 500,000 500,000 500,000 500,000 500,000 500,000 500,000
Total Reserves 4,301,944$ 5,503,193$ 5,535,919$ 5,676,724$ 5,820,805$ 5,968,271$ 8,066,236$ 8,220,759$
Ending Fund Balance After Reserves 9,294,453$ 2,132,093$ 2,927,101$ 2,744,616$ 3,757,988$ 3,808,925$ 2,324,367$ 3,418,093$
Attachment B: Wastewater - 2016 Budget Fund Financial and Capital Improvement Program
Attachment B
1
2
3
4
5
6
7
8
9
10
11
13
14
18
19
20
26
31
32
34
35
36
37
38
39
40
41
42
45
46
47
48
50
51
53
56
58
66
67
71
72
A K L M N O P
CITY OF BOULDER
2016 - 2021 CAPITAL IMPROVEMENT PROGRAM
WASTEWATER UTILITY FUND
Assumed Inflation Rate 2016 2017 2018 2019 2020 2021
PROJECT NAME APPROVED PROJECTED PROJECTED PROJECTED PROJECTED PROJECTED
Wastewater Treatment
WWTF Pumps $150,000 $0 $0 $0 $0 $0
WWTF Permit Improvements $150,000 $0 $750,000 $1,500,000 $0 $136,857
WWTF Permit Improvements - Proj. Bond $0 $0 $0 $0 $18,500,000 $0
WWTF Laboratory $50,000 $0 $0 $0 $0 $0
WWTF Instrumentation/Control $0 $674,918 $701,915 $729,992 $759,191 $0
WWTF Electrical $120,000 $1,200,000 $0 $0 $0 $0
WWTF Activated Sludge $0 $175,479 $0 $0 $0 $0
WWTF Rehabilitation $0 $0 $0 $0 $150,000 $375,000
WWTF Cogeneration $0 $0 $0 $0 $184,481 $0
WWTF Digester Complex $0 $0 $0 $200,000 $2,000,000 $0
WWTF Digester Cleaning $0 $0 $0 $0 $0 $0
Bond Issuance Costs $0 $0 $0 $0 $125,000 $0
Subtotal - Wastewater Treatment Plant $470,000 $2,050,397 $1,451,915 $2,429,992 $21,718,672 $511,857
Marshall Landfill
Marshall Landfill $100,000 $0 $0 $0 $0 $0
Subtotal - Marshall Landfill $100,000 $0 $0 $0 $0 $0
Wastewater System Monitoring and Metering
Utility Billing Computer System $0 $0 $0 $0 $65,000 $0
Subtotal - Monitoring and Metering $0 $0 $0 $0 $65,000 $0
Collection and Conveyance System Rehabilitation
Condition Assessment Program $811,200 $843,648 $877,394 $912,490 $948,989 $986,949
Sanitary Sewer Rehabilitation $2,758,080 $2,868,403 $2,983,139 $3,102,465 $3,226,563 $3,355,626
Sanitary Sewer Manhole Rehabilitation $216,320 $224,973 $233,972 $243,331 $253,064 $657,966
Tier 1 Goose Creek 1/1A Master Plan Project $0 $0 $0 $0 $0 $329,278
Tier 1 Goose Creek 5 Master Plan Project $0 $0 $25,000 $647,590 $1,346,988 $1,400,867
Subtotal - Sewer System Rehabilitation $3,785,600 $3,937,024 $4,119,505 $4,905,875 $5,775,604 $6,730,686
TOTAL CAPITAL USES OF FUNDS $4,355,600 $5,987,421 $5,571,420 $7,335,867 $27,559,277 $7,242,543
Attachment B: Wastewater - 2016 Budget Fund Financial and Capital Improvement Program
Attachment C CITY OF BOULDER
2016 FUND FINANCIAL
2014 2015 2016 2017 2018 2019 2020 2021
Actual Revised Recommended Projected Projected Projected Projected Projected
Beginning Fund Balance 16,195,856$ 15,450,198$ 12,962,605$ 12,745,927$ 11,478,354$ 8,036,481$ 7,971,514$ 7,633,207$
Sources of Funds
Operating-
Service Charge Fees 5,592,683$ 5,482,012$ 9,612,708$ 10,017,210$ 10,840,224$ 11,730,857$ 12,577,121$ 13,106,367$
Projected Rate Increases 4,111,509 384,508 801,377 867,218 821,160 503,085 524,255
Non-Operating--
Plant Investment Fees 818,369 600,000 300,000 350,000 350,000 350,000 350,000 350,000
Urban Drainage District Funds 50,000 800,785 882,835 957,835 930,000 400,000 400,000 400,000
State and Federal Grants 4,794,503 2,655,468 - - -
Interest on Investments 71,936 97,318 129,626 191,189 229,567 160,730 159,430 152,664
Intergovernmental Transfers (KICP Program)2,000 144,200 148,526 152,982 157,571 162,298 167,167 172,182
Rent and other miscellaneous revenue 44,561 40,000 40,000 40,000 40,000 40,000 40,000 40,000
Miscellaneous nonrecurring revenue - - - - - - - -
Sale of Real Estate - Yards Masterplan - 357,375 - - - - - -
Projected Bonds - 23,075,000 - - 25,325,000 - - - TOTAL NON-OPERATING SOURCES OF FUNDS 5,781,369 $27,770,145 $1,500,987 $1,692,006 $27,032,138 $1,113,028 $1,116,598 $1,114,846
Total Sources of Funds 11,374,052$ 37,363,666$ 11,498,203$ 12,510,593$ 38,739,581$ 13,665,045$ 14,196,804$ 14,745,468$
Uses of Funds
Operating-
Administration 439,228$ 433,414$ 475,855$ 490,131$ 504,835$ 519,980$ 535,579$ 551,646$
Planning and Project Management 1,066,947 1,253,577 1,289,877 1,328,573 1,368,431 1,409,483 1,451,768 1,495,321
Stormwater Contract Management 61,111 49,442 49,442 50,925 52,453 54,027 55,647 57,317
Stormwater Quality and Education 782,766 943,360 1,060,346 1,092,156 1,124,921 1,158,669 1,193,429 1,229,232
System Maintenance 1,035,053 1,618,165 1,343,771 1,384,084 1,425,607 1,468,375 1,512,426 1,557,799
Sick/Vacation Accrual 4,326 50,000 50,000 51,500 53,045 54,636 56,275 57,964
Debt--
Refunding of the Goose Creek 1998 Revenue Bond 385,117 387,038 381,675 386,138 380,175 - - -
Projected Bond - South Boulder Creek - - - - 2,125,000 2,125,000 2,125,000 2,125,000
Projected Bond - Wonderland Creek - 862,500 1,589,188 1,592,338 1,589,588 1,591,088 1,591,688 1,591,388
Transfers-
Cost Allocation 219,451 246,288 284,264 298,477 313,401 329,071 345,525 362,801
Planning & Development Services 128,511 132,367 136,338 140,428 144,641 148,980 153,450 158,053
General Fund - Utilities Attorney 17,629 19,986 19,646 20,432 21,249 22,099 22,762 23,445
STORMWATER/FLOOD MANAGEMENT UTILITY
Attachment C: Stormwater/ Flood Management - 2016 Budget Fund Financial and Capital Improvement Program
Attachment C CITY OF BOULDER
2016 FUND FINANCIAL
2014 2015 2016 2017 2018 2019 2020 2021
Actual Revised Recommended Projected Projected Projected Projected Projected
STORMWATER/FLOOD MANAGEMENT UTILITY
Capital 7,983,897 3,212,900 5,084,480 6,994,483 7,806,155 4,903,241 5,547,837 5,003,924
Projected Bond - South Boulder Creek - - - - 25,000,000 - - -
Projected Bond - Wonderland Creek/4-Mile - 23,000,000
Projected Bond Issuance Costs - 75,000 - - 325,000 - - -
Encumbrances, Carryover and Adj. to Base - 7,617,222 - - - - - -
Total Uses of Funds 12,124,036$ 39,901,259$ 11,764,882$ 13,829,666$ 42,234,499$ 13,784,648$ 14,591,386$ 14,213,889$
Sick and Vacation Accrual Adjustment 4,326$ 50,000$ 50,000$ 51,500$ 53,045$ 54,636$ 56,275$ 57,964$
Ending Fund Balance Before Reserves 15,450,198$ 12,962,605$ 12,745,927$ 11,478,354$ 8,036,481$ 7,971,514$ 7,633,207$ 8,222,750$
Reserves
Bond Reserves 324,984$ 2,312,552$ 2,312,552$ 2,312,552$ 4,362,568$ 4,362,568$ 4,362,568$ 4,362,568$
Post Flood Property Acquisition 1,050,000 1,050,000 1,050,000 1,050,000 1,050,000 1,050,000 1,050,000 1,050,000
FEMA Deobligation Reserve 295,923 295,923 295,923 295,923 295,923 295,923 295,923 295,923
Sick/Vacation/Bonus Reserve 57,671 59,401 61,183 63,019 64,909 66,856 68,862 70,928
Pay Period 27 Reserve 34,480 48,480 62,480 76,480 90,480 104,480 118,480 132,480
Operating Reserve 938,756 1,186,650 1,177,385 1,214,177 1,252,145 1,291,330 1,331,715 1,373,394
Capital Reserve 200,000 200,000 200,000 200,000 200,000 200,000 200,000 200,000
Total Reserves 2,901,814$ 5,153,006$ 5,159,523$ 5,212,150$ 7,316,026$ 7,371,157$ 7,427,548$ 7,485,293$
Ending Fund Balance After Reserves 12,548,385$ 7,809,599$ 7,586,404$ 6,266,204$ 720,455$ 600,357$ 205,659$ 737,457$
Note:
Operating reserve levels are based on industry standards and are maintained for revenue bonds, revenue fluctuations (weather and water usage impacts) and the capital intensive nature of the utility.
Attachment C: Stormwater/ Flood Management - 2016 Budget Fund Financial and Capital Improvement Program
Attachment C
1
2
3
4
5
6
7
8
9
12
13
14
15
17
18
20
21
23
24
25
32
33
34
35
36
40
41
42
43
44
45
46
47
48
49
50
51
A I J K L M N
CITY OF BOULDER
2016-2021 CAPITAL IMPROVEMENT PROGRAM
STORMWATER AND FLOOD MANAGEMENT UTILITY FUND
2016 2017 2018 2019 2020 2021
PROJECT NAME PROPOSED PROJECTED PROJECTED PROJECTED PROJECTED PROJECTED
Major Drainageways
South Boulder Creek $750,000 $750,000 $0 $0 $0 $0
South Boulder Creek - Bond Proceeds $0 $0 $25,000,000 $0 $0 $0
Bond Issuance Costs $0 $0 $325,000 $0 $0 $0
Skunk Canyon Creek $0 $100,000 $500,000 $0 $0 $0
Twomile Canyon Creek $0 $100,000 $500,000 $0 $0 $0
Bluebell Canyon Creek - King's Gulch $0 $100,000 $500,000 $0 $0 $0
Four Mile Canyon Creek $0 $0 $500,000 $1,250,000 $1,250,000 $500,000
Four Mile Canyon Creek - Upland to Violet $500,000 $500,000 $500,000 $250,000 $0 $0
Bear Canyon Creek $500,000 $0 $0 $0 $0 $0
Gregory Canyon Creek $500,000 $0 $0 $0 $0 $0
Boulder Creek $0 $2,500,000 $2,250,000 $0 $0 $0
Preflood Acquisition $500,000 $550,000 $600,000 $633,000 $660,000 $684,285
Greenways Program Transfer $97,500 $97,500 $97,500 $97,500 97,500 97,500
Subtotal - Major Drainageway Improvements $2,847,500 $4,697,500 $30,772,500 $2,230,500 $2,007,500 $1,281,785
Miscellaneous
Utility Billing Computer System $0 $0 $0 $0 $65,000 $0
Subtotal - Miscellaneous Drainage Improvements $0 $0 $0 $0 $65,000 $0
Stormwater Management
Upper Goose Creek $750,000 $750,000 $750,000 $1,000,000 $1,165,547 $1,221,869
Local Drainage Improvements $730,080 $759,283 $789,655 $821,241 $854,090 $986,949
Stormwater Quality Improvements $162,000 $169,000 $175,500 $182,500 $190,000 $197,390
Storm Sewer Rehabilitation $270,400 $281,200 $292,500 $304,000 $632,700 $657,966
Transportation Coordination $324,500 $337,500 $351,000 $365,000 $633,000 $657,966
Subtotal - Localized Drainage Improvements $2,236,980 $2,296,983 $2,358,655 $2,672,741 $3,475,337 $3,722,139
TOTAL CAPITAL USES OF FUNDS $5,084,480 $6,994,483 $33,131,155 $4,903,241 $5,547,837 $5,003,924
Attachment C: Stormwater/ Flood Management - 2016 Budget Fund Financial and Capital Improvement Program
Agenda Item 5 Page 1
CITY OF BOULDER
WATER RESOURCES ADVISORY BOARD
INFORMATION ITEM
MEETING DATE: March 28, 2016
AGENDA TITLE: Information Item – Carter Lake Pipeline
PRESENTER/S:
Jeff Arthur, Director of Public Works for Utilities
Joe Taddeucci, Water Resources Manager
Bret Linenfelser, Water Quality and Environmental Services Manager
Tom Settle, Water Treatment Manager
Douglas Sullivan, Acting Principal Engineer – Water, Wastewater, and Stormwater
Ken Baird, Utilities Financial Manager
EXECUTIVE SUMMARY:
In establishing the 2017 capital improvements program (CIP), the City of Boulder must reach a
final decision regarding participation in the Northern Colorado Water Conservancy District’s
(hereinafter Northern) Southern Water Supply Project II (hereinafter Carter Lake Pipeline). A
decision is required in 2016 because the project schedule requires 2017 funding for final design,
and because final design cannot proceed for other project participants until Boulder’s
involvement is determined.
The purpose of this item is to present an overall summary of the project and provide WRAB an
opportunity to ask questions or request additional information prior to making a June
recommendation on the 2017 CIP.
BACKGROUND:
Boulder’s water supply comes from the following three sources: 1) the Middle Boulder Creek
watershed; 2) the North Boulder Creek watershed; and 3) west slope water through the Northern
system. Middle and North Boulder Creek sources are treated at the Betasso Water Treatment
Plant and Northern supplies are treated at the Boulder Reservoir Water Treatment Plant.
Boulder’s three water sources and two treatment plants are a result of Boulder’s long-term
planning principles for system reliability, redundancy and flexibility. Boulder relies on Northern
supplies for about one third of its annual water supply on average. Attachment 1 provides a
perspective map view of Boulder’s water sources, and Attachment 2 shows a graphic illustration
of the annual composition of Boulder’s water sources.
The Carter Lake Pipeline will not change the quantity of Northern supplies available to Boulder,
but it would change the delivery mode of water used for treatment. Some of the water currently
delivered in Northern’s St. Vrain Supply Canal and Boulder Feeder Canal would instead be
delivered through a closed, pressurized pipeline. Attachment 3 provides a map of the proposed
pipeline alignment and the existing canal system. The pipeline will be owned and operated by
Agenda Item 5 Page 2
Northern and will deliver Colorado-Big Thompson (CBT) and Windy Gap water to project
participants, including the City of Boulder, Left Hand Water District, and Longs Peak Water
District. The participants will each own a share of capacity in the pipeline and will provide all
necessary funding for construction and operation and maintenance. Boulder’s share of the
overall project cost is estimated to be about $35,000,000 and Boulder would pay up to $158,000
per year for operations and maintenance.
Boulder’s consideration of participation in the Carter Lake Pipeline dates back to an April 2003
Source Water Quality Planning Study. Staff and WRAB deliberated on the pipeline for several
years, including evaluating water treatment and source water protection alternatives, and in 2007
agreed upon a measured path forward that included financial participation in Carter Lake
Pipeline permitting activities and right-of-way (ROW) acquisition. In 2008, City Council
approved $1,000,000 in funding for permitting and ROW acquisition activities. That work is
now mostly complete and most of the funding has expended. In 2009, City Council approved the
Source Water Master Plan, which included the Carter Lake Pipeline as part of the Water Utility
Fund 20-year CIP .
Boulder’s participation in the Carter Lake Pipeline project was originally considered for the
source water protection and water quality benefits of a pipeline compared to the existing canal
system. The 2013 flood event and heavy rains in the spring of 2015 each made the canal system
inoperable and exposed an additional vulnerability that had not been considered in previous
Carter Lake Pipeline evaluations.
Additional background information is provided in Attachment 4.
ANALYSIS:
Staff analysis of the Carter Lake Pipeline has considered a number of factors, including:
Boulder’s reliance on Northern supplies, seasonal considerations, operational considerations,
water quality considerations, water treatment alternatives, flood resiliency and financial
considerations. A summary of each of those factors follows.
Reliance on Northern Supplies – Northern deliveries are an important source of Boulder’s water
supply. Boulder cannot meet its current water demand solely from Boulder Creek sources, and
reliance on Northern supplies will likely increase as Boulder moves towards buildout and
contends with climate change. As a theoretical illustration of this, staff compared average
annual demand to Boulder’s supply for the past 20 years as if Northern supplies had not been
available (see Attachment 5). In this scenario, supply would have been short of customer
demand in most years and water restrictions would have been likely. WRAB, City Council and a
community study group who participated in the 2009 Source Water Master Plan recognized
Northern’s importance to Boulder’s water supply and identified the Carter Lake Pipeline as a “no
regrets” action subject to funding availability.
Seasonal Considerations - The existing canal system is not capable of winter operation, so
Boulder must estimate its winter supply needs and ensure that water is delivered to Boulder
Reservoir before the canal is taken offline each November. The seasonal canal deliveries and
winter reservoir storage currently do allow year-round access to Northern supplies when
necessary. Sometimes Boulder Creek source and treatment facilities, some of which are 100
years old, need to be taken offline for extended maintenance or CIP projects. These projects
Agenda Item 5 Page 3
typically occur in the winter when treated water demands are lower. The pipeline, with direct
and continuous access to Northern supplies, would provide for more reliable winter supply than
is currently provided by the reservoir. The pipeline’s direct and continuous winter connection
would also provide access to more of Boulder’s water in the Northern system if Boulder
encountered extremely low winter snowpack or drought concerns or in the event of a major
unexpected issue on the Betasso side of the system.
Operational Considerations – Currently when Boulder places a water delivery order or makes a
delivery change with Northern, the time required for the water to travel from Carter Lake to
Boulder Reservoir is about 12 hours through the canal system. Because the Carter Lake Pipeline
will be pressurized, Boulder will receive its desired order immediately once Northern adjusts
flow.
The city is at the downstream end of the canal system, and delivery timing and flows can be
affected by upstream operational changes and overall demand. At times the city can be one of
few or the only call for water and very low flows delay delivery and adversely affect quality. At
other times, upstream users’ operations can unintentionally impact Boulder’s deliveries. A
pipeline will eliminate such issues.
Water Quality Considerations - All Boulder municipal water meets applicable water quality
standards at present. However, there can be noticeable differences in taste and odor in water
supplied from the Boulder Reservoir Treatment Plant compared to water supplied from the
Betasso Water Treatment Plant. Source water quality at Carter Lake is similar to that of the
city’s high quality Boulder Creek water sources, but can degrade as a result of open canal
transport and storage in Boulder Reservoir. Furthermore, as a necessary measure to control plant
and algal growth and retain capacity in the canal system, Northern applies herbicides directly to
the water and canal banks as part of the canal maintenance. Boulder does not divert water from
the canal during such treatments. However, some herbicide active ingredients (from both canal
maintenance and other unknown sources) have been detected in the finished water, although at
concentrations well below regulated maximum contaminant levels.
Due to the small watershed area (which reduces runoff potential) and depth of the waterbody,
Carter Lake has displayed minimal degradation since data collection began, and is expected to
continue to serve as a long-term reliable source of high quality water. Boulder is home to a
number of major employers that depend on a reliable municipal water supply to produce their
products and services. Boulder businesses as diverse as pharmaceutical companies, breweries,
and data centers are impacted by variations in water chemistry supplied by the Boulder Reservoir
Treatment Plant, especially when raw water from Boulder Reservoir is used. The ability to
provide water of more consistent quality would be beneficial to these types of customers in
reducing their pretreatment needs.
Flood Resiliency - The 2013 flood event caused catastrophic damage to the Boulder Feeder
Canal and caused extreme sediment loading to Boulder Reservoir, which rendered the Boulder
Reservoir Water Treatment Plant inoperable for approximately one month. The canal damage
required lengthy repairs. The same flood caused extreme road damage to all access routes to the
Betasso Water Treatment Plant. Fuel and chemicals were just barely able to reach Betasso in
time because of the road damage. Had the fuel and chemical deliveries not been possible, both
of Boulder’s treatment facilities would have been unavailable at the same time, and Boulder
Agenda Item 5 Page 4
would have potentially been without drinking water. Similarly, had the flood event unfolded in
the same exact way it did in September but instead occurred in June, July or August when both
treatment facilities are required to meet demand, restrictions would have been likely.
The original Southern Supply Pipeline, which does not serve Boulder, is a buried steel pipeline
and also was subjected to the 2013 flood. This pipeline withstood the flood and was the only
available source out of five for a neighboring municipality. The proposed Carter Lake Pipeline
would also be a buried steel pipeline.
The heavy rains that occurred in the spring of 2015 were not as extreme as the 2013 flood.
However, concrete canal panels were damaged and canal deliveries were unavailable for an
extended duration for the second time in two years, despite Northern’s responsive repair efforts.
The Carter Lake Pipeline would dramatically reduce, if not eliminate, the chance of delivery
interruptions due to floods and extreme weather.
Water Treatment Alternatives - The city’s water quality monitoring and treatment processes must
consider a continuously evolving list of contaminants detected and regulated at the state and
federal level. While there are presently no regulatory changes requiring immediate
modifications to city water facilities, the strategy for achieving the city’s water quality goals is to
protect the drinking water supply through a combination of source water protection measures and
treatment processes. The city assessed the addition of improvements at the Boulder Reservoir
Treatment Plant and determined that substantial treatment process upgrades would be required to
achieve the same water quality results as can be achieved with a pipeline and existing treatment
facilities. The capital cost of the treatment process improvements might be more or less
expensive than the Carter Lake Pipeline depending on which processes were ultimately chosen.
The ongoing operations and maintenance costs of treatment processes upgrades could be
significantly more than the annual cost of pipeline maintenance. Regardless, no treatment
alternative can provide the flood resiliency benefits of a pipeline, eliminate the operational
delivery interruptions associated with the canal system, ensure a more consistent water quality
year round, or provide the same seasonal supply reliability of a pipeline.
Another relatively recent development involves disposal of sediment residuals (sludge) resulting
from treatment processes. Since the 2013 flood, contaminants have been detected at higher
concentrations in the residuals during routine monitoring. Staff believes the precipitation events
may have generated enough runoff to carry these additional contaminants into the canal and
reservoir. The city has been successful in removing the contaminants from finished drinking
water, but the contaminants could eventually reach a threshold that would make disposal of
residual materials significantly more expensive and less environmentally sustainable. A pipeline
would eliminate such contaminants being intercepted by the canal and carried into the reservoir.
Funding Considerations – As mentioned previously, the 2009 Source Water Master Plan’s
recognition of the Carter Lake Pipeline as a “no regrets” action was subject to funding
availability. Staff’s current evaluation of the Carter Lake Pipeline project has focused on
Boulder’s ability to fund it without compromising other Water Utility system priorities and
without requiring unacceptable increases to Water Utility rates. Staff has determined that the
Carter Lake Pipeline’s inclusion in the CIP can be done within the rates proposed last year and
will not require deferral of other priority projects.
Agenda Item 5 Page 5
NEXT STEPS:
Staff is seeking WRAB’s feedback on the Carter Lake Pipeline so that any additional
information can be provided prior the June 2016 WRAB meeting when staff will request a final
board recommendation concerning the proposed 2017-2022 CIP.
ATTACHMENTS:
A. Boulder’s Source Water System Map
B. Boulder’s Water Supply Composition
C. Carter Lake Pipeline Alignment Map
D. Table of Additional Background Information
E. Boulder’s Water Supply without Northern Supplies vs. Demand (bar chart)
Middle Boulder
Creek
Watershed
West Slope –Upper CO River Watershed
(Northern Supplies –CBT/Windy Gap)
Boulder Reservoir Water
Treatment Plant
Betasso Water Treatment Plant
North Boulder
Creek
Watershed
Carter
LakeBoulder
Reservoir
Attachment 1 –Boulder’s Source Water System
Attachment A. Boulder’s Source Water System Map
Attachment 2 - Boulder’s Water Supply Composition
0
5,000
10,000
15,000
20,000
25,000
30,000
1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015acre-feetCity of Boulder Water Sources
Northern Water Supply
Boulder Creek Supply
Attachment B: Boulder’s Water Supply Composition
Attachment C. Carter Lake Pipeline Alignment Map
Attachment 4-Carter Lake Pipeline Additional Background Information
Attachment 4 Page 1
ITEM DESCRIPTION
Basic Pipeline Facts
Length ...................................................... Approximately 20 miles
Diameter .................................................. 33 to 36 inches
Material .................................................... Steel
Project Cost (Permitting,
Right-of-Way Acquisition,
Design and Construction)
Total Project Cost .................................... $46 Million
City of Boulder Cost ................................ $35 Million (32 cfs capacity)
Left Hand Water District Cost ................. $10 Million (11 cfs capacity)
Longs Peak Water District Cost ............... $1 Million (3cfs capacity)
Cost allocation is primarily appropriated among participants based on percentage of overall capacity owned.
However, each participant will completely fund project features for which it is the only user. For example,
Left Hand Water will fund its portion of the pipeline that branches off of the main pipeline, and Boulder will
fund the portion of the pipeline between the Left Hand Water branch and Boulder Reservoir.
Annual Operation and
Maintenance Costs (Estimated
at 0.5% of Construction Costs)
Total Annual O&M Cost ......................... $211,000
City of Boulder Cost ................................ $158,000
Left Hand Water District Cost ................. $47,000
Longs Peak Water District Cost ............... $6,000
In any given year, any unused cash balance for the pipeline O&M assessment carries over and is subtracted
from the subsequent year’s O&M assessment. For illustration purposes, if a participant’s annual O&M
assessment by agreement was $100,000, and actual O&M costs for the year were $60,000, a carryover of
$40,000 would be made for the subsequent year and the participant’s O&M assessment for the subsequent
year would be $60,000.
Funding Strategy and Timing
Carter Lake Pipeline is currently scheduled for construction in 2018 but was originally scheduled to be
completed several years earlier. Northern and the other project participants agreed to delay the project in
order for Boulder to retire (in 2016) previous utility bonds associated with past projects. Boulder will fund
Carter Lake Pipeline construction by issuing utility bonds starting in 2018.
Water Supply Costs of Service
Northern Water completed a Cost-of-Service Rate Study in 2014. The result of the Study is that open
Colorado Big Thompson (CBT) rates are on an increasing trend from $28 per acre-foot to $56.20 per acre-foot
from 2014 to 2018 for municipal and industrial customers. By way of comparison based on very rough
estimates, it costs the City of Boulder about $300 per acre-foot to deliver source water to the treatment
facilities.
Remaining Project Timeline 2016 and early 2017 ................................. ROW acquisition activities completed
2017 ......................................................... Final design
2018-2019 ................................................ Construction
Attachment D. Table of Additional Background Information
Attachment 4-Carter Lake Pipeline Additional Background Information
Attachment 4 Page 2
ITEM DESCRIPTION
Pipeline Right of Way (ROW)
Acquisition
Northern began ROW acquisition starting in 2008 and is planning to complete all necessary acquisitions by
early 2017. Most of the remaining acquisitions involve City of Boulder property. The final Carter Lake
Pipeline alignment crosses property with a number of City of Boulder interests. The pipeline crosses Open
Space and Mountain Parks Department conservation easements jointly owned with Boulder County. It
crosses Tom Watson Park, which is on an IBM easement owned by the city’s Parks and Recreation
Department. The pipeline also crosses Boulder Reservoir property owned by the Utilities Division of the
Public Works Department and managed by the Parks and Recreation Department. Easements for the Utilities
and Open Space and Mountain Parks Department property will require City Council action.
The northern portion of the Carter Lake Pipeline is in the same alignment as the existing Southern Water
Supply Project. The original SWSP owner agreement (1995) included an escalation clause for the value of the
ROW of 9 percent per year. The participants of the Southern Water Supply Project II (Carter Lake Pipeline),
including the City of Boulder, funded ROW acquisition well in advance of construction partly to avoid
additional expenses due to the ROW escalation.
Project Permits Northern completed a Boulder County 1041 process and a Larimer County location and extent review process
for the Carter Lake Pipeline. The project is subject to regulation by the U.S. Army Corps of Engineers under
Section 404 of the Clean Water Act. A Pre-Construction Notification for the pipeline impacts was sent to the
U.S. Army Corps of Engineers and the project has been permitted under Nationwide Permit (NWP) 12 for
utility lines. There are also a variety of routine construction permits typically required for pipeline projects,
including county building permits, CDOT/County Utility permits, construction stormwater discharge permits
and construction dewatering permits. These permits will either be obtained by Northern or the construction
contractor.
Northern Water/Pipeline
Participant Agreements
Pipeline design, permitting and ROW acquisition activities to date have been addressed by interim agreements
between Northern and each of the project participants. Prior to construction in 2018, Boulder and Northern
will execute an agreement to formalize each party’s long-term interests and responsibilities associated with
the pipeline. The agreement will formalize the ownership arrangement (Boulder will own capacity/Northern
will own the pipeline) and payment terms and conditions among other things. By executing this agreement,
Boulder will be making a perpetual commitment to its stake in the pipeline. However, Boulder would always
have the option of selling its CBT and Windy Gap water and its share in the pipeline should it ever choose to
do so.
Past WRAB/Council Action
In March 2007, staff presented the Integrated Evaluation of the Boulder Reservoir Water Treatment Plant
Source Water Protection and Treatment Improvements to the Water Resources Advisory Board (WRAB) and
requested that WRAB support the Carter Lake Pipeline as the preferred long-term capital improvement
alternative. In June 2007, WRAB voted 3 to 2 to delay construction of the Carter Lake Pipeline primarily due
to the costs, until other treatment alternatives had been constructed and practical and cost-effective
Attachment D. Table of Additional Background Information
Attachment 4-Carter Lake Pipeline Additional Background Information
Attachment 4 Page 3
ITEM DESCRIPTION
improvements to the Boulder Feeder Canal had been completed. In September 2007, WRAB approved a
consensus proposal supporting continuing work related to pipeline planning, preliminary engineering,
permitting and right-of-way acquisition, while evaluating other utility capital improvement and operating
priorities. In November 2007, City Council approved the 2008 Capital Improvement Plan and budget, which
included $1 million for permitting and right-of-way acquisition for the Carter Lake Pipeline. In 2009, City
Council approved the Source Water Master Plan, which included a recommendation to proceed with the
Carter Lake Pipeline provided an adequate funding plan could be established.
Boulder County 1041 Process Northern Water submitted its 1041 application for the Southern Water Supply Project II to Boulder County in
May 2009. Following lengthy and detailed consideration of Northern’s preferred alternative in comparison to
a more urban alternative route through Longmont, the Board of County Commissioners ultimately approved
Northern’s preferred alignment in July 2012. The approval includes 34 detailed design and construction
requirements that Northern must meet to ensure the project can satisfy the applicable 1041 criteria regarding
preservation of productive agricultural land, comply with the Boulder County Comprehensive Plan and
effectively mitigate the environmental impacts associated with the project.
Public Process Summary
The project went through a lengthy public process with the Boulder County Commissioners during the county
1041 proceedings that concluded in 2012. There were three public hearings, and four alignment alternatives
that were formally studied as part of the process. The project had two public open houses (one at the Boulder
Reservoir Water Treatment Plant and one at Left Hand Water’s facilities). The project was also highlighted
throughout development of the 2009 Source Water Master Plan, including discussions during public and
stakeholder outreach. Prior to the county 1041 process, a city Community and Environmental Assessment
Process (CEAP) was initiated and presented alternatives mainly in the form of a budget decision (fund the
project or not). The CEAP process was put on hold in 2009 pending the outcome of the parallel county 1041
process. In 2015 it was determined that a CEAP was not an ideal process to facilitate public engagement
since the completed county process had already performed an extensive environmental assessment and
established an alignment and since the only remaining decision concerning Boulder’s project participation was
whether or not to fund the project. As such, it was determined that the 2017 capital improvements and budget
process, which includes opportunity for public involvement, was the appropriate mechanism to perform a final
and thorough evaluation of the project.
Boulder to Lyons Recreation
Trail Planning
One community item of interest has been the status of the proposed Lyons to Boulder regional trail, one
potential alignment for which is along Northern’s Boulder Feeder Canal. City and county staff have
previously evaluated the potential of moving forward with trail development. City staff prepared a CEAP
document for the trail in 2006. In 2009, Northern indicated that it was not likely to grant permission for use of
any part of its Boulder Feeder Canal ROW for the trail. While the pipeline and trail projects are separate
projects, staff anticipates that the pipeline’s inclusion in the capital improvements program and 2017 budget
may result in renewed interest in the trail. Northern Water is managing the pipeline project as a service to the
Attachment D. Table of Additional Background Information
Attachment 4-Carter Lake Pipeline Additional Background Information
Attachment 4 Page 4
ITEM DESCRIPTION
pipeline’s participants and otherwise does not have an interest in the pipeline that would be incentive to
reconsider its position on the trail. Boulder to Lyons trail planning efforts, including consideration of other
alignments, are ongoing in cooperation between the city and Boulder County.
Boulder Reservoir Operations
(post pipeline)
There will be no significant changes to Boulder Reservoir levels post-pipeline. In general, the level of Boulder
Reservoir gradually increases between May 1 and July 1 and gradually decreases between July 1 and April 30
of each year. Summer reservoir levels are largely determined by Northern Water operations unrelated to
Boulder’s municipal deliveries. Winter storage levels are primarily determined both by the amount of “winter
storage water” Boulder orders and the amount of water treated at Boulder Reservoir Water Treatment Plant
over the winter. Historically, Boulder has ordered between two and four thousand acre feet of winter water to
be delivered to Boulder Reservoir by November 1 of each year for treatment and winter municipal use and for
early season exchanges. Although Boulder does not anticipate routinely treating water from the reservoir post-
pipeline, Boulder will continue to have the option to order winter storage water to maintain a supplemental
winter storage supply at BRWTP at no additional cost. Depending upon whether Boulder orders winter
storage water, the May 1 reservoir storage level may be higher or lower than it has been historically.
Regardless, the general pattern of gradual increase through July 1 and decrease over the fall and winter will
continue. Pumping water from Boulder Reservoir into the treatment plant requires an average of
approximately 100,000 kilowatt hours of electricity per year and costs about $7,000 per year. These costs and
energy consumption would decrease after completion of the Carter Lake Pipeline.
Boulder Feeder Canal
Operation (post pipeline)
The Boulder Feeder Canal will continue to operate for agricultural water deliveries and the city’s exchange
water after the pipeline is constructed. The participants’ municipal water deliveries will no longer be
conveyed through the canal the majority of the time, but the canal will still be available (providing an
additional level of redundancy) should the pipeline be offline for maintenance purposes. The city may take its
exchange water through the pipeline (up to the limit of Boulder’s owned capacity) in the future should
development of a hydroelectric facility be deemed feasible).
Boulder’s Water Source
Selection Principles
In wet years when water is more abundant, Boulder preferentially draws more from its Boulder Creek sources
in order to generate renewable energy through the city’s eight hydroelectric facilities. In dry years, Boulder
uses more Northern Water as a drought protection measure to preserve storage in its Boulder Creek sources.
Future reliance on Northern supplies will likely increase as Boulder moves towards buildout and contends
with climate change.
Hydroelectric Potential
An additional benefit associated with the Carter Lake Pipeline would be an opportunity to develop the
hydroelectric power potential of the pipeline should it prove economically feasible. The terminal structure at
Boulder Reservoir will be designed to allow for the future addition of hydroelectric equipment.
Attachment D. Table of Additional Background Information
Attachment 5 - Boulder’s Water Supply vs. Demand (without Northern Supplies)
0
5,000
10,000
15,000
20,000
25,000
30,000
1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014acre-feetYear
City of Boulder Water Sources
Native Basin Supply vs Demand (Hypothetical)
Native Boulder Creek Water (Direct Flow)Native Boulder Creek Water (Storage)
Boulder Creek SupplyStage 2 Stage 3Stage 4Stage 2Stage 4Stage 4Stage 4Stage 4Stage 4Stage 3Stage 4Stage 4Stage 2Stage 4Stage 2Average Annual Demand (2006-
FOR ILLUSTRATION PURPOSES ONLY
NOT AN ACTUAL HISTORICAL RECORD
Attachment E. Boulder’s Water Supply without Northern Supplies vs. Demand (bar chart)