8 - Water, Wastewater and Storm Plant Investment Fee StudyCITYOFBOULDER
WATER RESOURCES ADVI50RY BOARD
AGENDAITEM
MEETING DATE: July 16, 2007
AGENDA TITLE: Water, Wastewater and Storm Plant Investment Fee Study
PRESENTER: Steve Buckbee, Planning & Development Services Engineering
Review
EXECUTIVE SUMMARY:
Plant Investment Fees, PIFs, aze one tool the City of Boulder has used to recapture initial
capital improvement investments in storm, sewer and water utility infrastructure over the
past 50 years. The current implementation of these fees aze charged to existing customers
who increase their projected usage of these utilities or to new customers who need to buy
into the existing city utility infrastructure system. Periodically the city looks at these fees
to try to equitably distribute the afore-mentioned capital costs among the different
customers who use city utility systems.
The main objective ofthis study is to provide options that equitably recover costs
associated with customer impacts on the city's utility infrastructure. Providing a system
that can be administered simply and effectively by city staff and understood by the
customer community is essential to achieving this goal. Equitable cost distribution will be
achieved by bringing projected impacts in line with actual impacts through observable
usage and site data for the city's vazious customer classes.
Fiscal Impacts:
The PIF study project has been incorporated into the budget and staff time has been
accounted for there-in.
Other Impacts: These impacts will be determined. As it stands, plant investment fees are
a substantial component of construction permitting fees for new and existing city utility
customers. The plant investment fees also compose between 5% and 10% of annual
utility revenue.
Public feedback: A project kickoff ineeting with the associated public notification has
tentatively been scheduled for mid August. Up to this point I have only spoken with
Steve Pomerance who has looked at the scope of work and expressed his concerns. I hope
to have Mr. Pomerance participate in the stakeholder group.
Analysis:
WRAB will provide input on the study through at least two public meetings.
Additionally, staff requests that a member or members of WItAB participate in the
stakeholder meetings that will occur.
Matrix of options: Options will be developed and analyzed by staff with input from a
citizen stakeholder group, Red Oak Consulting, WRAB and other concerned citizens
through WRAB meetings or direct contact with me.
Attachments:
• Scope of Work for 2007/2008 Plant Investment Fee Study
• Attachment A(Draft Red Oak Scope of Services)
• Estimating Water, Wastewater & Irrigation Fees and Determining Water Meter
Sizing (Current Customer Handout)
~~'
, ~
City of Boulder Public Works/
Planning & Development Services
Scope of Work for
2007/2008 Plant Investment Fee Study
Prepared by:
Version:
Steve Buckbee
2
Date: May 21, 2007
TABLE OF CONTENTS
l. Background .................................................................................
2. Objectives ...................................................................................
3. Scope ..........................................................................................
3.1 Inclusions ..............................................................................
3.2 Exclusions .............................................................................
4. Key Project Deliverables ............................................................
5. Work Approach ..........................................................................
6. Progress Reporting and Communications ..................................
7. Constraints ..................................................................................
8. Assumptions ...............................................................................
9. Preliminary Project Plan .............................................................
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Revision Number 2 Issued May 22, 2007 Page i
Scope of Work
1. Background
2007/2008 Plant Investment Fee Study
Plant Investment Fees, PIFs, aze one tool the City of Boulder has used to recapture initial
capital improvement investments in storm, sewer and water utility infrastructure over the past
50 years. The current implementation of these fees are charged to existing customers who
increase their projected usage of these utilities or to new customers who need to buy into the
existing city utility infrastructure system. Periodically the city looks at these fees to try to
equitably distribute the afore-mentioned capital costs among the different customers who use
city utility systems.
The recent adoption of a new water rate structure and associated water budgets presents an
opportunity for PIFs to take advantage of the customer usage and irrigable area data developed
for that implementation.
2. Objectives
The main objective of this study is to provide options that equitably recover costs associated
with customer impacts on the city's utility infrastructure. Providing a system that can be
administered simply and effectively by city staff and understood by the customer community is
essential to achieving this goal. Equitable cost distribution will be achieved by bringing
projected impacts in line with actual impacts through observable usage and site data for the
city's various customer classes.
3. Scope
3.1 Inclusions
- Establish and define customer classes
- Ascertain system impacts for each customer class
- Differentiate indoor and outdoor water usage for all customer classes
- Existing customer costs versus new customer costs
- PIF credit policy
- Large user agreements/special cases
- Annual public works revenue impact
- Lay the groundwork for integration with the monthly billing rate structure in the future
- Update applicable sections of Boulder Revised Code, Title 4 and Title 11
- Update LandLink software and train city staff
- Evaluate city meter and service sizing methodology
3.2 Exclusions
- An audit of customer water budgets and monthly storm charges
- Addressing concerns with rate structures and monthly user chazges
- Examination of PIF expenditures and accounting practices
- Estimate of future infrastructure needs and anticipated cost recovery
Revision Number 2 Issued May 21, 2007 Page 1
2007/2008 Plant Investment Fee Study
Scope of Work
4. Key Project Deliverables
K De[iverable Res onsibili Acce tance Crrte~ia A roval Re uired
Scope of Work Steve Buckbee Work can be completed within time Carol Linn, Jeff
frame. Scope covers staff/ customer Arthur, Bob
concern areas Harberg, Ned
Willrams
Project Plan Red Oak, Steve Buckbee Includes a[I the tasks that must be Carol Linn, Jeff
carried out by the project and is Arthur, Bob
completed wrthin the applicab/e trme Harberg, Ned
rame. Wrllrams
Kckoff Meeting Tayer Consulting Inform Public and form Stakeholder S[akeholder Group
Grou
Customer C[ass List Steve Buckbee In line with utility billing customer Bronwyn
classes Weygandt, Carol
Linn
Customer Class Steve Buckbee Breakovt lines up with Average Carol Linn, Ned
Indoor/Outdoor Water Winter Consumption and irrigation Williams, Bo6
Usage Breakout usage when available across each Harberg, Red Oak
customer class
Water, Sewer & Storm Park Central2" Floor Must provide the minimum Bob Harberg, Ned
System7nfrastructure Staff informatron now rn BRC 4-20-26 (a) Wi[liams
Valuations and 4-20-29(a). A storm
infrastructure valuation and
methodology must be created from
scratch with water and sewer as a
model.
Repopulate Asset Information Resources, Establish current asset valuatron Bob Horberg, Ned
Management Steve Buckbee Williams
S readsheets
Impervious Area and Steve Buckbee !n line with GIS data and Storm Brett Hill,
RunoffCoe~cient Water Master Plan Douglass Sullivan
Comparisons by
Customer Class
Large Utrlity User Steve Buckbee Provide a mechanism to handle users WRAB,
Agreements have a disproportionate impact on Stakeholder Group
ciry utilrties. Examine cases where
the impact was antrctpated and
where the impact was not fore-seen.
Provide a mechanism to retroactively
handle the un areseen situations.
Evaluate City Meter Steve Buckbee, Red Oak Follow current AWWA M22 and IPC. Randy Earley, Jeff
and Service Sizing Simplifies existing system Arthur, Bob
Methodology Harberg, Ned
Wi[Irams
PIF Options Steve Buckbee, Red Oak Easy [o implement and understand Douglass Sullivan,
options. Randy Ear[ey, Red
Oak, Carol Linn,
WRAB,
Stakeholder Group,
LandLink Team
Cus[omer Scenarias Steve Buckbee Run [he various PLF options on Red Oak,
different customers to identify Stakeholder Group
potential impacts and narrow down
the lausrble PIF o tions.
Revision Number 2 Issued May 21, 2007 Page 2
Scope of Work
2007/2008 Plant Investment Fee Study
Public Works Revenue Red Oak, Steve Buckbee Provides necessary funding for Caral Lrnn, Ned
7mpacts master plan identifred caprtal Williams, Bab
rmprovement projects Harberg, Douglass
Sullivan, Randy
Earl , WRAB
Legallssues Red Oak City is not exposed to additio»al City Attorney's
liabiliry. O~ce,
ArielCalonne
LandLink Update LandLink Team There is enough time to make the LandLink Team
necessa chan es
Boulder Revised Code Steve Buckbee Simpl~ and consolidate code Crty Atttroney's
Update sections. O~ce, Arie[
Calanne, Jeff
Arthur
Revised Customer Steve Buckbee Closer to two pages rather than Steve Hitchcock
Handouts ei ht.
Peloton Follow Up Steve Buckbee Present the alternative fee scenarro Carol Linn. Ned !i
to the Peleton in order that they may Wr[liams, Jeff
ick their most morable scenario. Arthur
5. Work Approach
I plan to utilize LandLink revenue data, GIS information, Utility Master Plans, Utility Billing
usage information, staff expertise, consultant expertise, Board input and customer input to
develop a simple, equitable system for assessing Plant Investment Fees.
I have access to and will be able to query data from the applicable databases to develop the
following deliverables:
• Customer Class List
• Customer Class Indoor/Outdoor Water Usage Breakout
• Water, Sewer & Storm System Infrastructure Valuations
• Impervious Area and Runoff Coefficient Comparisons by Customer Class
• Large Utility User Agreements and Usage
I will use staff expertise to validate the results.
This bulk of the work lies with these items:
• Evaluate City Meter and Service Sizing Methodology
• PIF Options
• Public Works Revenue Impacts
• LegalIssues
• Adoption by City Council
Once the afore-mentioned data is developed and validated, it will be possible to develop in
house PIF options with input from the LandLink team, the Stakeholder Group, WRAB and Red
Oak. Once acceptable PIF options aze agreed upon, we can assess revenue impacts and present
the recommended option(s) to WRAB and the Stakeholder Group for input prior to moving on
to City Council for adoption.
Revision Number 2 Issued May 21, 2007 Page 3
2007/2008 Plant Investment Fee Study
Scope of Work
LandLink, Boulder Revised Code and documentation updates will proceed after adoption by
City Council.
6. Progress Reporting and Communications
Monthly emails will be the main form of progress reporting. I will work with the consultant
and other persons of interest as the need azises. As WRAB and Stakeholder Group meetings
approach, preparation and debrief ineetings will be scheduled with the project advisory
committee, (Ned Williams, Bob Harberg, Jeff Arthur and Carol Linn).
7. Constraints
The second reading and adoption of the new PIF scheme by City Council will need to happen
by late spring, ahead of the 2009 fee changes.
I will need to continue in my role as a review engineer for Planning and Development Services
between half and three quarter time through September. To complete the project as scoped
within the described time frame, I will need to work on project related tasks almost full time
October through April.
8. Assumptions
At a minimum there will be two WRAB meetings, two Stakeholder Group meetings and two
readings at City Council to adopt the changes to the Boulder Revised Code. At this point I will
assume that this item will be contentious and should proceed ahead of and sepazate from the
2008 budget process for fee changes in 2009.
Unless the adopted changes simplify the current PIF scheme drastically, the LandLink team
will need a significant amount of time to implement them. Short of a complete rejection by
City Council, the worst case scenario would see the changes put into effect on January 1, 2009.
If the proposed PIF changes eliminated rather than changed the programming complexities, a
mid year 2008 PIF implementation might not be out of the question.
9. Preliminary Project Plan
By October 1 s` all the data acquisition and validation will be complete the Kickoff ineeting and
Stakeholder Group Formation will have taken place. During this time, city utility infrastructure
system valuations will need to be completed and Red Oak can provide input regazding PIF
options and implementations that have been successful elsewhere.
October through the end of January will be a time where PIF options and impacts will be
developed and finalized with the help of the project advisory committee, WRAB, the Landlink
team, the Stakeholder Group and Red Oak. I suspect this will be an iterative process with at
least two meetings with WRAB, the Stakeholder Group and the project advisory committee.
Once agreeable PIF options aze developed, the required associated Boulder Revised Code
changes can be drafted and reviewed. February, Mazch, April and May will be the time to
complete this and prepaze/proceed with both readings at City Council.
Revision Number 2 Issued May 21, 2007 Page 4
Scope of Work
2007/2008 Plant Investment Fee Study
Assuming the council adopts an option and does not refer the issue to staff for fur[her research,
The LandLink team and I can complete the necessary programming and documentation
changes to support council's adopted PIF option. Depending on the complexity and number of
PIF options, a late summer or early fall PIF implementation might be possible. Short of that,
the PIFs would be rolled into the yeaz end fee changes and implemented January 1, 2009. After
adoption of the new PIF policy, the Peloton issues would be addressed immediately regardless
of the implementation date for the rest of the city's customers.
Revision Number 2 Issued May 21, 2007 Page 5
ATTACHMENT A
City of Boulder, Colorado
Water, Wastewater, and Stormwater Plant Investment Fee Study
Draft - For Discussion Purposes Only
BASIC SCOPE OF SERVICES
This section presents a detailed description of the tasks that comprise the Basic Services that
the Red Oak shall undertake in meeting City requireme~ts. Red Oak will work with City
Staff in conducting the water, wastewater, and stormwater plant investment fee (PIF)
analysis. Red Oak will update the City's PIFs that:
• Achieve a"growth pays for growth" philosophy
4 Recover new connector's proportionate shaze of capacity in existing and growth-
related facilities
• Are designed to be understood by new connectors
• Are easy for the City to administer and update
• Comply with Colorado law and City policies and objectives
Task 100 - Project Scope of Work Development
Red Oak will meet with City representatives to discuss study objectives, identify the task
list, and develop an initial timeline for project milestones and deliverables. Red Oak will
develop a scope of work to be applied for each utility (water, wastewater, and
stormwater) based on the information gathered from this meeting and input from the City.
Task 200 - Project Orientation
Red Oak shall provide a data request for financial, operating, and statistical information
needed to complete the study. Red Oak shall facilitate a project orientation workshop
(Staff Meeting #1) with City representatives to assure mutual understanding of study
objectives, gather available data, review the study schedule, become familiar with utility
billing records, and discuss relevant City policies.
Task 300 - Existing PIF Structure
Red Oak will review the City's existing fee structure for the following components:
• Understanding of existing PIF methodologies
f Adequacy of PIFs to meet City financial planning objectives such as meeting
utility cash flow requirements, maintaining a growth pays for growth policy,
and reserve/debtfunding policies.
• PIF assessment (e.g. separation of customer classes by water usage, contributed
water volume, and impervious area)
• 700 Ftllmore Street • Sude 2W • Denvec CO 80206 . T 303-316-6541 . P 303-31&-&599 • wum redoakconsulhnq com
ATTACHMENT A
City of Boulder, Colorado
Water, Wastewater, and Stormwater Plant Investment Fee Study
Draft - For Discussion Purposes Only
Task 400 - Growth Forecast
Red Oak will use historical data provided by the City to develop defensible growth
projections for the City's residential and nonresidential classes. The analysis will
include:
• Review current City growth projections, including infill projections, and
methodology used to develop projections.
Task 500 - Utility Customer Class Characteristics
Red Oak will evaluate the following information to develop customer class service units
for each utility:
Task SOI - Water Utiliry
Using City-provided 2006 customer billing data Red Oak will:
• Analyze customer class usage characteristics and develop customer class
average day, peak day, and estimate peak hour demand.
• Develop average day, peak day, and estimate peak hour demand for an
equivalent residential unit (EQR).
• Estimate customer class indoor and outdoor usage by applying estimates of
average winter water consumption (AWC).
Task 502 - Wastewater Utiliry
Usiag City-provided 2006 customer billing data Red Oak will:
• Develop EQR estimates using City-provided billing data and wastewater
treatment capacity and loading information.
Task 503 - Stormwater Uti[ity
Using City-provided 2006 customer billing data Red Oak will:
4 Aggregate each customer class' impervious area in square feet.
StaffMeeting #2
Red Oak will meet with City Staff to discuss the results of the customer class
characteristics.
722007 Page 2 of 6
ATTACHMENT A
City of Boulder, Colorado
Water, Wastewater, and Stormwater Plant Investment Fee Study
Draft - For Discussion Purposes Only
Task 600 - Replacement Cost Assets and Capital Improvement Program
Review
Red Oak will review the City's cunent water, wastewater, and stormwater System
Infrastructure Valuation, and the City's 10-year capital improvement program for each
utility and assist City Staff in evaluating the following:
Task 601- Capita[ Imptovement Program.
Review StafPs identification of growth-related projects and projects that are part of the
City's renewal and replacement program. This allocation serves as the basis for
allocating costs to new development, existing customers, and upgrades that benefit both
cursent and future customers.
Task 602 - Existing Assets.
Review the System Infrastructure Valuation for the equity buy-in and combined buy-in
and incrementaUgrowth (hybrid) methodologies. This analysis includes reviewing StafPs
valuations of the existing system assets. Adjustments or credits may be applied to the
valuation. These include: developer contributions, grants, and outstanding principal
funded through user rates. Net system asset value will be developed using the following
approaches:
• Original cost (OC)
• Original cost less depreciation or Book Value (BV)
t Replacement cost new using industry accepted cost indices (RCN)
• Replacement cost new less depreciation (RCNLD)
Staff Meeting #3
Red Oak will meet with City Staff to review and discuss the findings from the capital and
asset valuation.
Task 700 - Water and Wastewater Capitai and Asset Cost Allocation
Red Oak will use the selected asset valuation approach in Task 500 and with assistance
from City Staff, categorize like-capital and assets based on major facility components.
Typical categories include:
Task 701- Water Utiliry
Identify and group capital and asset costs into the following categories:
• Raw water
• Treatment
7l22007 Page 3 of 6
ATTACHMENT A
City of Boulder, Colorado
Water, Wastewater, and Stormwater Plant Investment Fee Study
Draft - For Discussion Purposes Only
• Treated transmission lines
• Treated distribution lines
• Pump stations
• Storage
• Raw water conveyance
• Others as appropriate
With assistance from Staff, allocate costs to functional components based on the design
parameter of each capital and asset group. Functional components include:
f Average day
• Peak day
• Peak hour
Task 702 - Wastewater Utility
Identify and group capital and asset costs into the following categories:
t Headworks
• Primazy treatment
+ Secondary treatment
• Aeration basins
• Trickling filter
+ Solids contact basins
• Others as appropriate
With assistance from Staf~ allocate costs to functional components based on the design
parameter of each capital and asset group. Functional components include:
• Volume
• Biochemical oxygen demand (BOD)
4 Total suspended solids (TSS)
• Ammonia (NH3-N)
Staff Meeting #4
Red Oak will meet with City Staff to review and discuss the fmdings from capital and
asset cost allocations.
722007 Page 4 of 6
ATTACHMENT A
City of Boulder, Colorado
Water, Wastewater, and Stormwater Plant Investment Fee Study
Draft - For Discussion Purposes Only
Task 800 - Fee Calculation
Red Oak will calculate the PIFs for water, wastewater, and stormwater based on the
selected approach. Assessment schedules will be developed and reviewed by the City.
The fee calculations will include:
• Consideration of finance sources in fee development and cash flow
projections.
• Red Oak will evaluate the following scaling measures to develop PIF
schedules:
1. Water/Wastewater EQRs
2. Meter size
3. Customer class peak usage (indoor and outdoor)
4. Impervious area
Task 900 - Cash Flow Test
Red Oak will conduct a cash flow test to ensure that estimated plant investment fee
revenue is sufficient to meet the growth-related capital improvement program throughout
the study period.
StajfMeeteng #5
Red Oak will meet with City Staff to review and discuss the findings from the fee
calculation and cash flow test.
Task 7000 - PIF Survey
Red Oak will compile a survey of water, wastewater, and stormwater PIFs from up to 10
Front Range Cities to include in the final report.
Task 1100 - Study Report and Presentation
Red Oak shall document study assumptions, procedures, findings and recommendations
in a draft and fmal study report. Red Oak deliverables include:
f Publish draft study report for City review.
• Facilitate conference call wRh City representatives to review City comments.
• Incorporate City comments and publish final report.
t Attend two Council meetings (meetings #6, #7) to present study findings and
recommendations.
722007 Page 5 of 6
ATTACHMENT A
City of Boulder, Colorado
Water, Wastewater, and Stormwater Plant Investment Fee Study
Draft - For Discussion Purposes Only
PERIOD OF SERVICES
Red Oak shall complete the study within nine months from notice to proceed.
PAYMENT FOR SERVICES
City shall pay Red Oak a not to exceed amount of $68,300 for Basic Services. Payment
shall be made monthly on the basis of Red Oak invoice. Red Oak must provide a clear,
detailed invoice reflecting items being billed, a summary sheet showing percentage of
work wmpleted to date, amount/percent billed to date and current status of aIl tasks
within the project. Payment shall be made thirty days from invoice submittal.
SUPPLEMENTAL SERVICES
Supplemental tasks to those included in the Basic Services may be requested by the City.
These services will be performed upon written authorization, which may include, but are
not be limited to, the following tasks:
i Evaluation of customer class data other than 2006 billing data.
• Development of scaling measures (fee structures) not listed in Scope.
• Preparation for and attendance at stakeholder meetings.
• Attendance at more than 7 meetings.
• Preparation of additional versions of the draft or final report.
722007 Page 6 of 6
City of Boulder, CO
Water, Wastc~vater, Stortnwater Plant InvesMent SWdy
Proposed Project Schedule
Task Task Name Start Finish 2007 2008
__ _ Ma Jun Jul Aug; Se Oct Nov Dec Jan Feb Mar A r Ma Jun : Jul Aug
100 Prqect Bwpe of Work Devebpment Fri 8/1 /07 Fri 7/27/07 ,;~„ p~„' ~„ ~ ~ ~
200 ~ Prqecl Orientation (Mee6ng #7) Fn 8/10/07 ~ Fri 8/10/07 ~ . ~I ~ ~ ~ ,~
300 Ebsting PIF Structure Mon 8/13/07 Tue 925/07 ~ ' „ .~,. ° ~ ~ ~~ . , '~ : .
400 U61ity Customer Class Charecteristics Mon 8/13/07 Tue 9Yt5/07 _ ~, :. ~~=;1 ' ' ' ~, , '
500 ~ GraMh Forecast Mon 8/13/07 Fri 921/07 ° '~ '
t,.-;i:,; ~ ~ , ~ . ' ~
i
Meeting #2 Tue 10/9/07 Tue 10/9/07 , _ ~, , ~'• ', ' ' , , ,
600 RC Aasets & CIP Review Wed 10/70/07 Tue 12/4/07 ', ', ~ ' ', ,
Meeting#3 Wed12/19/07~ Wed12/19/07 - , ', ', • ', ' . , .
700 W/W W Capital & AssM Allcea6on Tue t/8/OS Tue 3/4/08 '
- ' ~ ' ~
MeetingfF4 Wed3/19/OB ,
Wed3/19/08 ,
~ '~
' '~ ~ ~, .; ~
' ~
800 Fce Calculation Wed 3/26/OB ~ Tue 6/3/OS ' ; ~, ~~~~ ~ ~~
800 Cash Flav Test Wed 4/23/OS Tue 6/3/OS ~~ ~ '~ ~ ~~ ~ ~ ~- ~' ~~~ ~
~-
Meeting#5 Wed6/18/08 Wed6/18/08 . ~ ~ ~~ ~ • •'
1000 PIF Survey Mon 3/24/08 Pn 5/30/OS ~ ~I ~~ ~ ~ i' ... , r~~,.. , ,
1100 SludyReport WedS/27/OS Tue7/8/OS ~, ~, ~, , , ~~~„~,,.,,,
Meeting #6 Tue 7/8/OB Tue 7/8/OS ' ~ ~~ ~, ~, ~ ~ ~
~ Meeting #7 Tue 8/5/OB Tue 8/5/OS - ' ''~ ' ~ ~ ~~ ~ *
Mon 7/2I07
~
ESTIMATING WATER, WASTEWATER 8~ IRRIGATION
PLANT INVESTMENT FEES
AND DETERMINING WATER METER SIZING
502. I
Water and Wastewater Plant Investment Fees (PIFs) are charged when an increase in
demand is placed on the City's existing water and wastewater systems.
~
s •- - ~ - • ~
1. Determine lhe total number of water and wastewater fixture units for the project by completing
the Plumbing Fixture Unit Caiculation Worksheet (page 3):
• Completely fill out columns A, B, C, D, G, and H. Be sure to include all fixtures served by the
water meter. For example, if you are remodeling a tenant space, it is likely that all fixtures in
the entire core and sheii building are served from the same meter.
• Sum the water fixture units and write the total in the space for TOTAL FIXTURE UNITS at the
bottom of column G.
• Sum the wastewater fixture units and write the total in the space for TOTAL FIXTURE UNITS
at the bottom of column H.
2. Estimate the gallons per minute (gpm) demand created by the project:
• Go to the Fixture UniUG.P.M. Demand Chart (page 5) and find the gpm demand that
corresponds to the total number of water fixture units calculated in step 1.
• Go to the Fixture UniUG.P.M. Demand Chart and find the gpm demand that corcesponds to
the total number of wastewater fixture units calculated in step 1.
3. Determine the water meter size required for the project:
• After calculating the total water gpm demand, refer to the small Residential / Non-residential '
Meter Sizing chart (see bottom of page 5) and determine the meter size required for the
pro~ect. The chart shows the demand range allowed for each meter size.
• For additions, remodels and new construction on lots previously served by city water, -
determine the existing meter size. Contact Utility Billing (303-441-3260) for assistance.
• For additions, remodels and new construction requiring new meter installation, refer to the
Riqht-of-Wav Permits and Utilitv Fees sections of the Schedule of Fees to determine meter
and tap fees. Please note: these fees do not include excavation costs. In addition, refunds
will not be given for existing meters and taps. All work in the City Right-of-Way (ROW), must
be completed by a ROW licensed contraclor.
4. Determine the Plant Investment Fees (PIFs) that will be assessed to the project:
• Refer to pages concerning Plant Investment Fees in the Utilitv Fees section of the Schedule
of Fees. Residentia~ PIFs are determined by the number of toilets, including rough-ins. (See
pages 7-8 for exampies.)
An existing meter is given a PIF credit based on the existing plumbing fixtures. PIF credit is
determined from these existing plumbing fixtures and subtracted from the total PIF owed.
Please note: in order to receive credit, the plumbing fiMUres must have been permitted for
previously. Credit will be given in PlF form only, not as a cash refund. To calculate PIF
credit for an existing structure, complete the Plumbing Fixture Unit Calculation Worksheet -
Credit (page 4) using the same methodology as steps 1& 2 of these instructions and the
current rates in the Schedule of Fees.
~
. .- .
1. Separately determine the total number of water and wastewater fiMUre units for both
residential and non-residential fixtures for the project (see above). ~
2. Sum the residential and non-residential £xture units together before converting the total
number of fixture units to the corresponding gpm demand (see above).
3. Determine the water meter size required for the project (see above) using the combined gpm
demand. -
4. Determine the Plant Investment Fees (PIFs) that will be assessed to your project:
• Separately calculate the residential and non-residential PIFs (see above).
• Combine the residential and non-residential PIFs to determine the total water and wastewater
PIF.
• •' ~ ~ • ~
1. Per seciion 5.09(C) of the Boulder Design and Construction Standards, all irrigation services shall
have a separate service line and meter, with the exception of single-family residential properties. If
the project is mutti-family, non-residential or mixed use and has a separate isrigation meter, a
separate irrigation PIF will be assessed.
2. At or before the time of ROW permit, a letter must be submitted that is printed on the landscape
architect or irrigation company's letterhead, signed by the landscape architecVirrigation company and
that states the gpm demand of the largest irrigated zone. This "gallons per minute (gpm) demand
letter" is required to calculate the irrigation P~F.
3. Refer to the Utilitv Fees section of the Schedule of Fees to determine the irrigation PIF. Multiply the
gpm demand of the largest irrigated zone by the dollar amount given in the Schedule of Fees. (See
page 8 for example.)
4. The irrigation meter, permit and inspection fees will be assessed at the time of ROW permit in
addition to the irrigation PIF.
~„ City of Boulder Planning and Development Services Center
`~~ ,~ PLUMBING FIXTURE UNIT CALCULATION WORKSHEET
For applicant use only.'
TOTAL
NUMBER NUMBER TOTAL WA3TE-
NUMBER OF OF NON- TOTAL WATER WATER FIXTURE
OF FIXTURES NUMBER PLUMBING RESIDENTIAL RESIDENTIAL FIXTURE UNITS UNITS
EXISTING TO BE OF NEW FIXTURES PIXTURE FIXTURE (Res. = D x E) (Res. = D x E)
TYPE OF FIXTURE FIXTURES REMOVED FIXTURES A•B+C UNITS UNITS Non-Res. = D x F Non-Res. = D x F
~ •• •
~
~
Tank Toilet 3 5
Bathtub / Bathtub Shower Combo 2 4
Shower Stali (per head) 2 4
Sink (Bath, Hand, Bar, lab) ~ 2
Sink (Kitchen/CompaRment) 2 4
Dishwasher 2 4
Ice Machine,3/8" line size 1 2
Washer / Laund Tub / Utilit Sink 2 4
Hose Bibb / Sill Cock 3 5
Floor Drain / Floor Sink 2 2
Sand Tre , Interce tor 2 6
• - .
Flush Valve Toilet 8
Urinal 5
Industrial Dishwasher 6
Bevera e Hook-u ~
Dnnkin Fountain 1
Sink Service / Mo / Janitor 4
Emer enc E e Wash ~
Emer enc Shower 2
Di Well ~
Grease Tra ,Interce tor 3
Industriat Clotheswasher 6
Ice Machine,3/8" line size Z
Ice Machine,l/2" line size 4
Ice Machine,3/4" line size 6
Ice Machine,t" line size ~~
TOTAL FIXTURE UNITS sum column
" THIS WORKSHEET IS FOR APP LICANT USE ONLY. DO NO T SUBMIT TOTAL GPM DEMAND see chart • a e 5 "
THIS FORM AT THE TIME OF BUILDING PE RMIT. A SEP ARATE REQUIRED METER SIZE see ehart • a e 5
P~UMBING FIXTURE COUNT
ci m FORM WILL B
uiTrcn E REQUIRED TO BE TOTAL PIF OWED see Schedule of Fees
I I ~ 1 Y I ~' ~'I
~ •~
'~'~. City of Boulder Pianning and DevelopmeM Services Center
PLUMBING FIXTURE UNIT CALCULATION WORKSHEET - CREDIT ~
i For applicant use only.'
Use this worksheet to calculate water and wastewater PIF credit when the project !
includes an existing structure and water meter. Please note: in order to receive
credit, the plumbing fixtures must have been permitted for previous{y.
70TAL WASTE-
NUMBER NON- TOTAL WATER WATER FIXTURE
OF RESIDENTIAL RESIDENTIAL FIXTURE UNITS UNITS
EXISTING FIXTURE FIXTURE Res. = A x B Res. = A x B
TYPE OF FIXTURE FIXTURES UNITS UNITS Non-Res. = A x C Non-Res. = A x C
~ •' ~
• ~
Tank Toilet 3 5
Bathtub / Bathtub Shower Combo 2 4
Shower Stall (per head) Z 4
Sink (Bath, Hand, Bar, Lab) ~ 2
Sink (Kitchen/Compartment) 2 4
Dishwasher 2 4
Ice Machine,3/8" line size 1 2
Washer I Laund Tub l Utih Sink 2 4
Hose Bibb I Sill Cock 3 5
Floor Dra~n ! Floor Sink 2 2
Sand Tre , Interce tor 2 6
. - ~
Flush VaNe Toilet 8
Urinat 5
Indusirial Dishwasher 6
Bevere e Hook-u 1
Drinkin Fountain 1
Sink Service! Mo I Janitor 4
Emer en E e Wash 1
Emer enc Shower 2
Di Well 1
Grease Tra , Inlerce tor 3
Industnal Clotheswasher 6
Ice Machine,3/6" line size 2
Ice Machine,tl2" line size 4
Ice Machine.3/4" line size 6
Ice Machine,7" line size 10
TOTAL FIXTURE UNITS CREDI T sum column ;s~~~' '- ~~'
TO TAL GPM DEMAND CREDIT see chart - pa e 5 ;~ -,~' r
EXISTING WATER METER SIZE call 303-441326D
TOTAL PIF CREDIT see Schedule of Fees
T07AL PIF OWED sce a e 3
SUBTRACT TOTAL PIF CREDIT see above ~~, .;„. •
TOTAL PIF DUE PIF OWED-PIF CREDI
" THIS WORKSHEET IS FOR APPLICAN7 USE ONLY.
DO NOT SUBMIT THIS FORM AT THE TIME OF BUILDING PERMIT.
A SEPARATE PLUMBING FIXTURE COUNT FORM WILL BE REQUIRED TO BE SUBMITTED.
4
FIXTURE UNIT / GPM DEMAND CHART
(WATER AND WASTEWqTER)
F.U. G.P.M. F.U. G.P.M. F.U. G.P.M. F.U G.P.M. F.U. G.P.M.
1 0 57 32 113 47 169 59 225 70
2 0 58 33 114 47 170 59 226 70
3 0 59 33 115 47 771 60 227 7p
4 0 60 33 176 48 172 60 228 70
5 0 67 33 117 48 173 60 22g 7p
6 0 62 34 178 48 174 60 230 70
7 5 63 34 719 48 775 60 231 70
8 6 64 35 120 49 776 60 232 70
9 8 65 35 121 49 177 60 233 71
10 8 66 35 122 49 178 61 234 77
11 9 67 35 123 49 179 61 235 71
12 10 68 36 124 49 180 61 236 71
13 70 69 36 125 50 181 61 237 72
14 17 70 36 126 50 182 62 238 72
15 11 71 36 127 50 183 62 239 72
i6 12 72 37 128 50 184 62 240 72
17 73 73 37 129 50 185 62 241 73
18 73 74 37 130 50 186 62 242 73
79 14 75 37 131 50 187 62 243 73
20 14 76 37 732 51 188 62 244 73
21 15 77 38 133 51 189 62 245 74
22 15 78 38 134 51 190 62 246 74
23 16 79 38 135 52 191 62 247 74
24 17 80 38 136 52 192 62 248 74
25 17 81 39 137 52 193 64 249 74
26 18 82 39 138 52 794 64 250 74
27 79 83 39 139 53 195 64 251 75
28 79 84 39 140 53 196 64 252 75
29 79 85 40 141 53 197 64 253 75
30 20 4 142 53 198 64 254 75
31 20 7 1 143 53 199 fi4 255 75
32 20 8 144 54 200 65 256 76
33 21 89 41 145 54 201 65 257 76
34 22 90 41 146 54 202 65 258 76
35 22 91 41 147 54 203 65 259 76
36 23 92 42 148 55 204 66 260 71
37 23 93 42 149 55 205 66 261 77
38 2 94 43 150 55 206 66 262 77
95 43 157 55 207 66 263 77
96 43 152 55 208 66 264 77
41 25 97 43 753 55 209 67 265 78
42 25 98 43 154 56 270 67 266 78
43 26 99 43 155 56 211 67 267 78
44 26 100 44 156 57 272 67 268 78
45 27 101 44 157 57 213 67 269 78
46 27 102 44 158 57 214 68 270 79
47 27 103 44 159 57 275 68 271 7g
48 28 104 45 160 57 276 68 272 7g
49 28 105 45 161 58 217 68 273- -~79
_ 50 28 t06 45 162 58 218 68 274 gp
51 29 107 45 163 58 219 68 275 80
52 30 708 46 164 58_ 220 69 ~ 276 80
53 30 109 46 165 58 221 69 277 80
54 30 110 46 166 59 222 69 78 -1
55 31 111 46 767 59 223 69
56 31 112 47 168 59 224 69
Residential / Non-residentia~
Water Meter Sizing
Meter
Siu GPM
3!4' 144
7" 5 0
1-1/2" 47- 0
2" 81-12
3" - 4
4• 241-4
6" 800
' For fixture units greater than 276,
please see the attached demand
equations (pape 8).
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~
DEMAND EQUATIONS: CONVERTING FIXTURE UNITS TO GPM
(Use these equations to determine gpm demand only
when total fixture units are greater than 278.)
Demand Equation for Predominately Flush Valves:
For fixture unit counts of 9 or less, GPM is given to be zero.
For fixture units between 10 and 999, use the following equation (Fixture units = A):
GPM =(0.000006 x A3) -(0.0029 x AZ) +(0.664 x A) + 1.349
For fixture units = 1000 or greater, use the foliowing equation (Fixture units = A):
GPM =(0.000000008 x A3) -(0.00006 x AZ) +(0.2424 x A) + 17.451
Demand Equation for Predominately Flush Tanks:
For fixture unit counts of 7 or less, GPM is given to be zero.
For fixture units belween 8 and 224, use the following equation (Fixture units = A):
GPM =(0.000006 x A3) -(0.0029 x AZ) +(0.664 x A) + 1.349
For fixture units = 225 or greater, use the following equation (Fixture units = A):
GPM =(0.000000008 x A3) -(0.00006 x AZ) +(0.2424 x A) + 17.451
6
~
WATER, WASTEWATER & IRRIGATION PIF ESTIMATION EXAMPLES
You have an existing detached single-family residential home with 4 bathrooms. You have
calculated an existing total water demand of 21 gpm and have determined that your current water
meter size is 3/4".
You are credited with having a large size residence (more than 3 bathrooms) with less than 24
gpm. At 2007 rates, the water PIF is equal to $11,650.
You would like to add additional plumbing fixtures in the house and have calculated the total
demand to equal 27 gpm. You determine that this additional demand will require the existing 3/4'
water meter to be upsized to t".
You are charged for a large size unit (more than 3 bathrooms) with 25 gpm or more. At 2007
rates, the water PIF is equal to: $9,710 +[$540 x(27 - 18)) _$14,570.
Subtracting your credit from the total amount owed, the water PIF due is:
($14,570 - $11,650) _ $2,920.
The wastewater PIF and credit can be calculated using the wastewater rates and the same
You have an existing condo unit (Attached Multi-Family Residential) with two bathrooms. You
have calculated an existing total water demand of less than 16 gpm. You would like to add a third
bathroom and you have calculated the total water demand to remain less than 18 gpm.
You are credrted with having an average size unit (2 bathrooms). At 2007 rates, the water PIF is
equal to $7,770.
You are charged for a large size unit (3 bathrooms). At 2007 rates, the water PIF is equal to
$9,710.
Subtracting your credit from the total amount owed, the water PIF due is:
($s.~io -$~.~~o) _ $i,sao.
~
.~
.
You have an existing commercial use building. You have calculated a total existing water
demand of 39 gpm and have determined that the current water meter size is 1".
At 2U07 rates, you are credited with a water PIF of: $9,710 +[$540 x(39-18)] _$27,OSQ.
You would like to add additional plumbing fixtures in the building and have calculated that the
existing and proposed fixtures will increase the total water demand to 45 gpm. You determine
this additional demand will require the existing 1" water meter to be upsized to 1-112".
At 2007 rates, you are charged a water PIF of: $9,710 +[$540 x(45-18)] _$24,290.
Subtracting your credit from the total amount owed, the water PIF due is:
($24,290 - $21,050) _ $3,240.
The wastewater PIF and credit can be calculated using the wastewater rates and the same
You would like to build a new mixed-use building and it will require an irrigation meter. The
landscape plan shows the meter supplying 3landscape zones. The demands are 10 gpm, 12
gpm and 15 gpm for each zone, respectively.
The irrigation PIF is $640 for each gpm of the largest irrigated zone.
Your largest irrigated zone is 15 gpm. Therefore, the irrigation PIF due is:
$645 x 15 = $9,675.
The landscape architect or irrigation designer can supply the needed gpm demand information.