Resolution No. 10-71 CITY OF TIGARD, OREGON
TIGARD CITY COUNCIL
RESOLUTION NO. 10- 7
A RESOLUTION TO ADOPT WATER SYSTEM DEVELOPMENT CHARGE METHODOLOGY
WHEREAS,Tigard Municipal code chapter 3.24 defines the authority and process for imposing Water System
Development Charges (SDCs);and
WHEREAS, the City of Tigard is the managing authority and water provider for the Tigard Water Service Area
(TWSA). The TWSA includes the residents of Durham, King City, two-thirds of Tigard, and the Tigard Water
District;and
WHEREAS, the Intergovernmental Agreements for Delivery of Water Service, Sections 8.B., state that the
Tigard City Council has the authority to modify, alter or repeal the Rules, Rates and Regulations for Water
Service within the Tigard Water Service Area;and
WHEREAS, on September 8, 2010, the Intergovernmental Water Board recommended approval of the water
SDC methodology;and
WHEREAS, the City of Tigard's water SDCs were last updated in 2000 in Resolution No. 00-66;and
WHEREAS, this resolution provides a uniform and equitable methodology for assessing SDCs to recover some
of the cost of the additional infrastructure needed to serve new development;and
WHEREAS, the 2010 Water System Master Plan calls for the City's water distribution system, storage facilities
and supply source to be increased to satisfy future water demands;and
WHEREAS, on August 6, 2008, following extensive analysis of various long-term water supply options, the
City Council entered into the Lake Oswego-Tigard Water Partnership whereby the cities would jointly develop
a shared water system;and
WHEREAS, SDC methodology needs to be updated on a regular basis to ensure fees accurately reflect
infrastructure building costs and changing water system priorities, such as the capital improvements listed in the
2010 Water Master Plan and projects related to the Lake Oswego-Tigard Water Partnership;and
WHEREAS, the City's consultant completed a comprehensive water financial plan which included a Water
Rate Study and Water System Development Charge Update. The findings are contained in Exhibit A, a
memorandum titled, "Tigard Water System Development Charge Methodology," dated October 26,2010;and
WHEREAS, the City has duly noticed the public hearing of December 14, 2010, and has heard testimony and
comments regarding the water SDC methodology;and
NOW,THEREFORE,BE IT RESOLVED by the Tigard City Council that:
RESOLUTION NO. 10 - 7/
Page 1
SECTION 1: The City Council hereby adopts the SDC methodology described in Exhibit A, a
memorandum titled, "Tigard Water System Development Methodology," dated October 26,
2010.
SECTION 2: All previous water SDC methodology,including Resolution No. 00-66,is hereby repealed.
SECTION 3: This resolution is effective immediately upon passage.
PASSED: This day of IUM6A 2010.
61� , -4��r-z
Mayor-City of Tigard
ATTEST:
Pakkc/,�- �-t
City Recorder-City of Tigard tel'
RESOLUTION NO. 10- 71
Page 2
Exhibit A
: PSMAKCONSULTING
A DIVISION Of'MALCOLM PION11 MEMORANDUM
To: John Goodrich, City of Tigard Date: October 26, 2010
From: Joe Healy, Red Oak Consulting
Paul Matthews, Red Oak Consulting
Re: Tigard Water System Development Charge Methodology
Introduction
Like many municipal water suppliers in Oregon,the City of Tigard(City)is faced with
increasing costs for the expansion of its water system's capacity to serve growth. To
mitigate this cost of growth in its water system,the City has historically assessed system
development charges(SDCs)to new customers. As part of its routine business practices,
the City has engaged Red Oak Consulting(Red Oak)to review its SDCs to ensure these
charges are:
• Fair and Equitable, and
• Avoid subsidizing either new or existing customers.
Water System Development Charge Methodology
The proposed SDC methodology is based on historical investments and future capital
improvements as identified by the City. The identified capital improvements are based
on the existing water master plans and knowledge of the system.
Reimbursement Fee
The reimbursement fee is based on the capacity buy-in approach, and requires three steps:
1. Fixed asset valuation,
2. Capacity definition, and
3. Assessment schedule.
The following is a description of each step.
Fixed Asset Valuation
Under the proposed methodology,the value of the City's fixed assets is based on an
estimate of the water system's reproduction cost new(RCN). An estimate of the value of
assets contributed by developers was excluded from the SDC calculation.
The City's system is designed to meet the needs of its customers and provide safe and
reliable water service throughout its service area. The system consists of many individual
components that serve specific functions. To estimate the value of assets related to each
• 12670 NW Barnes Road • Suite 104 9 Portland,OR 97229 • T 503-352-0900 • F 503-644-2414 • www.redoakconsulting.com
City of Tigard Page 2
function, the value of each asset is allocated to one or more of 10 functions. The City's
functions are:
1. Groundwater/ASR
2. PWB Supply
3. L.O.-Tigard System
4. Bonita Pump Station
5. Water Storage
6. Pump Stations
7. 550-530 Intertie
8. Transmission &Distribution
9. Administrative Facilities
10. Field Operations
11. Future Willamette Supply'
Many assets used in the distribution system are typically contributed by developers and
thus excluded from the calculation of the reimbursement fee. To explicitly show the
value of the excluded assets, they were assigned to an additional category labeled
Exclude front SDC. Table 1 summarizes the asset values attributed to each function.
Based on the analysis, the total value of the City's water system assets for SDC purposes
in fiscal year ending 2010 (FY2010) is $155 million. Of the total value, $23 million is
excluded from the SDC to account for assets that are considered contributed or obsolete
assets. Thus, for the purpose of establishing a reimbursement SDC, the City's water
system is valued at approximately$132 million.
Capacity Definition
The next step in determining the reimbursement fee under the capacity buy-in approach is
to define the system capacity. Specifically, under the capacity buy-in approach the
system capacity is based on the unused capacity of the system for each function identified
above. The City provided data used for this analysis.
Table 2 lists the current capacities of each function. Table 3 presents an estimate of the
capacity in the existing system that is available for growth. Underlying the numbers
shown in this table is the assumption that one equivalent dwelling unit (EDU) consumes
475.5 gallons of water per day on a peak-day basis.2 This estimate is based on the City's
most recent estimates and an assumption that the system currently serves 28,785 EDUs.
The amount of storage required per EDU is 556 gallons. This value is also derived from
the City's analysis of its system and projections. Using these assumptions and the
capacities for each function summarized in Table 3, the number of EDUs that can be
served by each function is calculated. Subtracting the number of EDUs currently served
1 Currently the City has no infrastructure related to Future Willamette Supply. This was included only as a placeholder
for future SDC updates.
'-Much of the City's water system is sized to meet the peak-day demands of its customers. Therefore,peak-day
demands are used to estimate the requirements for most of the City's infrastructure.
City of Tigard Page 3
by the utility generates the number of EDUs available for growth. A description of how
the number of EDUs currently served by the City is estimated follows below.
Assessment Schedule Development
Table 4 provides an inventory of the number of EDUs by meter size. The number of
EDUs is based on the number of meters by size and the associated equivalency factors.
The equivalency factors are calculated based on an analysis of the City's customer billing
data for the last five years. Based on the number of meters served by the City and the
equivalency schedule presented in Table 4, the total number of EDUs served by the City
is estimated to be 28,785.
For connections to the water system with meters larger than 2-inches, the City will
forecast the demands on an average-day, peak-day, and peak-hour basis. The number of
EDUs associated with the demands will be determined by the following:
EDUs—(ADD*60.400)+((PDD—ADD)*0.343)+((PHD—PDD)*0.257)
Where:
• ADD is the projected average-day demand of the new user in gallons per day, and
• PDD is the projected peak-day demand of the new user in gallons per day, and
• PHD is the projected peak-hour demand of the new user in gallons per day, and
The constants used in the above formula are:
• 0.400 equals the proportion of the City's water facilities allocated to the average-
day function.
• 226.4 equals the estimated gallons per day on an average-day basis demanded by
an EDU.
• 0.343 equals the proportion of the City's water facilities allocated to the max-day
extra-capacity function.
• 249.1 equals the estimated gallons per day of max-day extra-capacity demanded
by an EDU.
• 0.257 equals the proportion of the City's water facilities allocated to the max-hour
extra-capacity function.
• 90.6 equals the estimated gallons per day of max-hour extra-capacity demanded
by an EDU.
The City may update the values in the formula above as its system changes to recognize
the changing costs imposed by new large customers.
The proposed equivalency schedule is presented in Table 4. Based on the number of
meters served by the City and the equivalency schedule presented in Table 4, the total
number of EDUs served by the City is estimated to be 28,785. It should be noted here
City of Tigard Page 4
that the equivalency factors shown in this table will be used for calculating SDCs for
connections to the water system with meters 2-inches and smaller. As described
previously, the City will forecast the number of EDUs for connections with meters larger
than 2-inches using the above formula.
Fee Calculation
The total costs to be recovered from the reimbursement fee SDC are based on the
percentage of remaining capacities by functions calculated in Table 3 and the total system
asset values shown in Table 1. Table 5 presents the total reimbursement amount by
function. The total amount attributable to the reimbursement fee is approximately$40
million. Table 6 calculates the reimbursement fee per EDU for each of the functions.
The total reimbursement fee per EDU is $2,936.
Improvement Fee
The improvement fee is based on the City's adopted capital improvement program (CIP).
Table 7 presents an overview of the City's CIP. To calculate an improvement fee based
on the incremental cost approach, the following three tasks must be completed:
1. Multi-purpose project allocations,
2. Capacity definitions, and
3. Assessment schedule development.
Multi-Purpose Project Allocations
Allocating the costs of multi-purpose projects is an integral part of calculating an
improvement fee. A multi-purpose project is an improvement that will serve both growth
and address existing needs. Few projects are designed and built exclusively to serve
growth or solve an existing deficiency. Rather, projects are often designed to maximize
economies of scale in design and construction. Therefore, projects serving both growth
and rehabilitation/upgrade(i.e., multi-purpose projects) are allocated to growth and non-
growth.
The value of each capital project is allocated to one or more of the system functions
described previously. Table 8 summarizes the allocation of capital projects to functions.
Tables 9 through 20 show the cost of new capacity for each project within each system
function. Based on this information, Table 21 summarizes the percent of capacities
available for growth and the resulting value of growth-related improvements attributable
to each system function. The total amount of capital improvements costs used to
calculate the improvement fee is approximately$54 million.
Capacity Definition
Table 22 summarizes the system capacities added by function. Similarly, Table 23
presents the estimated number of EDUs available for growth by function.
City of Tigard Page 5
Assessment Schedule
As with the reimbursement fee, the improvement fee portion of the City's proposed SDC
will be based on meter size. Table 4 presents the number of EDUs for each meter size.
Fee Calculation
The improvement fee is calculated based on the cost of the growth-related capital projects
and the additional capacities estimated by these projects. Table 24 summarizes the
improvement fee by system function. Based on the CIP developed by the City, the
improvement fee per EDU is $3,538.
Results and Recommendations
As shown in Tables 6 and 24, the total reimbursement and improvement fees are
calculated to be $2,936 and $3,538 respectively, for a total SDC of$6,474 per EDU.
Table 25 presents the resulting schedule of SDCs by meter size.
Supplemental Water SDC
The City will charge a Supplemental Water SDC for any areas outside of the 2010
Service Boundary based on a supplemental adopted UP list. The Supplemental Water
SDC will be additional to the updated Water SDCs adopted by City Council.
Table 1: Net Fixed Asset Valuation -RCN
Descri tion FY2010 Assets
Groundwater/ASR $3,756,934
PWB Supply 0
LO-Tigard 0
Bonita Pump Station 0
Water Storage 22,640,803
Pump Stations 11516,807
550-530 Intertie 0
Transmission & Distribution 99,266,414
Administrative Facilities 2,346,745
Field Ops. 2,519,602
Future Willamette Supply 0
Exclude from SDC 22,969,208
Total $155,016,513
Table 2: Capacity by Function
System Component Capacities
Units
Groundwater/ASR 4.1 MGD
PWB Supply 6.8 MGD
LO-Tigard 0.5 MGD
Bonita Pump Station 0.5 MGD
Water Storage 24.5 MG
Pump Stations 13,600.0 gpm
550-530lntertie 3,131.6 gpm
Transmission &Distribution 41,338.4 EDU
Administrative Facilities 41,338.4 EDU
Field Ops. 41,338.4 EDU
Future Willamette Supply 0.0 MGD
Exclude from SDC 0.0 0
Table 3:Available Capacities of Existing System
Requirements per Subscribed Available Capacity Remaining
System Component EDU Units EDU Available I Capacity EDUS) EDUs Capacity
Groundwater/ASR 171.0 gpd 23,975 28,785 0 0.00%
PWB Supply 283.6 gpd 23,975 28,785 0 0.00%
LO-Tigard 20.9 gpd 23,975 28,785 0 0.00%
Bonita Pump Station 20.9 gpd 23,975 28,785 0 0.00%
Water Storage 556.4 gallons 44,034 28,785 15,249 34.63%,
Pump Stations 473.7 gpd 41,338 28,785 12,553 30.37%
550-5301ntertie 0.1 gpm 41,338 28,785 12,553 30.37%
Transmission&Distribution 1.0 EDU 41,338 28,785 12,553 30.37%
Administrative Facilities 1.0 EDU 41,338 28,785 12,553 30.37%
Field Ops. 1.0 EDU 41,338 28,785 12,553 30.37%
Future Willamette Supply 0.0 gpd 0 28,785 0 0.00%
Exclude from SDC 0.0 0 0 0 0 0.00%
Table 4: Inventory of EDUs for FY2010
Equivalency
Meter Size or Service Line Size Number of Meters Factor EDUs
5/8 x 3/4 Inch 15,635 1.00 15,635
1 Inch 1,604 2.67 4,279
1.5 Inch 375 8.00 2,999
2lnch 320 12.99 41156
3Inch 24 2290 550
4 Inch 11 46.97 517
6Inch 5 50.00 250
8Inch 5 80.00 400
10 Inch 0 156.30 0
12 Inch 0 225.07 0
Total 17,979 28,785
Table 5: Calculation of Reimbursement Totals
Capacity
Available for Reimbursement
System Component Growth Total
Groundwater/ASR 0.00% $0
PWB Supply 0.00% 0
LO-Tigard 0.00% 0
Bonita Pump Station 0.00% 0
Water Storage 34.63% 7,840,480
Pump Stations 30.37% 460,603
550-530 Intertie 30.37% 0
Transmission &Distribution 30.37% 30,143,834
Administrative Facilities 30.37% 712,627
Field Ops. 30.37% 765,118
Future Willamette Supply 0.00% 0
Exclude from SDC 0.00% 0
Total $39,922,662
Table 6: Reimbursement Fee per EDU
Proposed
Reimbursement
System Component SDC
Groundwater/ASR $0
PWB Supply 0
LO-Tigard 0
Bonita Pump Station 0
Water Storage 380
Pump Stations 37
550-530 Intertie 0
Transmission& Distribution 2,401
Administrative Facilities 57
Field Ops. 61
Future Willamette Supply 0
Exclude from SDC 0
Total $2,936
Table 7: Overview of CIP Projects
Descri tion I Total Project Cost
ASR Well 3—Design&Equip $2,609,963
New Pump Station- Siting Study 50,000
New Pump Station-Design 255,000
New Pump Station-Construction Year 1 (67%) 963,000
New Pump Station-Construction Year 2(33%) 481,000
New PRV from 550G to 410 Zone 105,000
Pipeline connecting 550G and 530 Zones-Design 197,000
Pipeline connecting 550G and 530 Zones-
Construction 1,770,000
Annual Fire Flow Improvement Allocation 3,300,000
Pipeline for installing PRV 550G-4 17,000
Pipeline in Main St. &Tigard Ave. 101,000
Water Master Plan Update 140,000
Willamette Sherwood Pipeline 0
550-6270-755545 -ASR3 463,755
550-6270-755545 - 287,066
550-6270-755827-550'Zone l OMil 3,952,087
550-6270-755828- 550'Zone Res#2 5,082,407
550-6270-755828- 1,080,352
550-6270-755951 -Water Res Seismic Upgrade 52,270
550-6270-755970- 7,052
550-6270-757012-Menlor Tank Recirc 39,132
Joint Water Supply Projects 89,299,160
Total $110,252,244
Tabic%:Allocation of C1P to Srctem Fnnctionc
rout crater Bo to
ump mtstnisswn A n nstraOtc uturc nolle
Descri limt ASR PWB Sn h' LO-Ti-rd Slatiou \Vater Stom•e Pu Sl:niotu 550-530 Lnenie Dislribntion Facilities Field O s. Sue
kt E.xlude fmm SDC Total
ASR Well 3-Design&Equip $2.609.96.3 $0 $0 SO $0 $0 $0 $11 $0 SO $0 $0 $2.609.963
Nein Purim Slntiott-Siting Study 0 (1 U 0 0 50 o0U 0 0 0 0 0 0 SU,1100
Nco Primp Station-Desipt 0 D n 0 0 255,000 11 n 0 n U 0 2551x30
Nen Poop Station-Constmnion]'ear l l67"/�) 0 0 0 0 0 963,000 0 0 0 0 0 0 96z 0110
Necc Pun>p Slnfion-CORSlrttctlon}-ear 21:3'%) 0 0 0 0 0 381JI0 (1 0 0 Il 0 11 381!Illll
Nen'PRV fmm S50G to 410 Zone I(rSOOp 11 0 (r 0 0 0 o f1 0 II n 1()5,0(1()
Pipelirc connecting 550Gand 530 Zones-Design U 0 0 U fl 0 197.000 (1 0 0 0 0 197,000
Pipeline cotutccOng 550G at%I 530 Zotes-Cortstmcli, 11 11 U 0 0 1.771(000 n 11 0 0 0 1,770 0110
Atuntal Fite Flonhopoo—nent Allocation 0 0 tl 11 0 Ir (1 fl (1 Il It 0 11
Pipelirc for imulling PRV 550G-1 U 11 0 ll 11 0 fl 17.0(111 II u U II 17.(x1111
PipeOtc in Main St.&Tigard Arc. 0 fl 0 0 11 0 0 101000 11 0 0 0 1111000
Water Master Plan Updom u 0 n U 0 0 0 Il n u 0 0 0
Willans0c Shetrrood Pipeline 0 n u u 0 U 0 U 0 0 11 u
550{,270-755545-ASR3 465.755 0 0 0 (1 0 11 (1 f1 0 0 0 463.755
550{270-755545_ 2%7.066 0 0 0 0 0 0 ll 0 0 0 0 2%7.066,
550{270-755827-550'Zotc loMil (1 0 0 0 3,952087 0 (1 0 0 0 0 U 3,952087
550{270-755%2%-550'Zone R,02 U 0 0 0 5 fl%2 107 1) 0 0 0 0 0 0 5082.307
5506270-75582%- (1 0 Il 0 111%11,152 0 U 0 0 0 0 0 1080,352
550{,270-755951-Water Res Seisnuc Upgrade 0 0 0 0 52 270 [) 0 0 0 0 0 0 52,270
5506270-75;97()- n 0 U 0 (1 11 0 0 0 0 0 7.05? 7,052
5506270-757012-Menlor Tank 11 c6. 1) Il U 0 19.13± ll 0 0 11 Il u 0
Joint Wale,Supply Projects 0 0 S9,299,160 0 0 11 U 0 0 0 0 0 89,299,160
Total $1165784 $0 $%9,299,160 SO $10,206.249 $17390011 $1967000 $119,000 SO S0 $0 $7052 $106,912234
Table 9:Allocation of Groundwater/ASR Expansion Costs
Percent Cost for
Total Project Expansion Expansion Cost of Expansion
Description Tigard Costs($) Capacity Capacity Capacity Units Capacity Capacity Project Group Added Capacity
ASR Well 3—DesiLn&Equip $2,609,963 1.90 0.00 MGD 0.00% $0 1 0.00
New PRV from 550G to 410 Zone 105,000 1.90 0.00 MGD 0.00% 0 1 0.00
550-6270-755545-ASR3 463,755 0.00 0.00 MGD 0.00% 0 1 0.00
550-6270-755545- 287,066 0.00 0.00 MGD 0.00% 0 1 0.00
Total $3,465,784 $0 0.00
Table 10:Allocation of PWB Sup piv Expansion Costs
Percent Cost for
Total Project Expansion Expansion Cost of Expansion
Description Tigard Costs($) Capacity Capacity Capacity Units Capacity Capacity Project Group Added Capacity
Total $0 $0 0.00
Table 11:Allocation of LO-Ti and Expansion Costs
Percent Cost for
Total Project Expansion Expansion Cost of Expansion
Description Tigard Costs($) Capacity Capacity Capacity Units Capacity Capacity Project Group Added Capacity
Joint Water Supply Projects 89,299,160 14.00 6.80 MGD 48.57% 43,373,878 6.80
Total $89.299,160 $43,373.878 6.80
Table 12:Allocation of Bonita Pump Station Expansion Costs
Percent Cost for
Total Project Expansion Expansion Cost of Expansion
Description Tigard Costs($) Capacity Capacity Capacity Units Capacity Ca aci Pro'ect Group Added Capacity
Total $0 $0 0.00
Table 13:Allocation of Nater Stora a Expansion Costs
Percent Cost
Total Project Expansion Expansion Cost of Expansion
to]-
Description Ti Bard Costs($ Ca acit Ca aci Ca acro,Units Ca acity Ca acity Project GroupAdded Capacity
550-6270-755827-550'Zane IOMil 3.9527087 3.00 3.00 MG 100.00% 3,952,087 1 3.00
550-6270-755828-550'Zone Re,02 5.082,407 3.00 3.00 MG 100.00% 5,082.407 1 0.00
550-6270-755828- 1,080,352 3.00 3.00 MG 100.00% 1080.352 1 0.00
550-6270-755951-Water Res Seismic Upgrade 52,270 0.00 0.00 MG 0.00% 0 0.00
550-6270-757012-Menlor Tank Recirc 39,132 0.00 0.00 MG 0.00% 0 0.00
Total $10,206,248 $10,1 14.846 3.00
Table 14:Allocation of Pump Stations Expansion Costs
Percent Cost for
Total Project Expansion Expansion Cost of Expansion
Description Tigard Costs($) Capacity Capacity Capacity Units Capacity Capacity Project Group Added Capacity
New Pump Station-Siting Study 50,000 3.800.00 0.00 gpm 0.00% 0 1 0.00
New Pump Station-Design 255,000 3,800.00 0.00 gpm 0.00% 0 1 0.00
New Pump Station-Construction Year 1(67%) 963,000 3,800.00 0.00 gpm 0.00% 0 1 0.00
New Pump Station-Construction Year 2(33%) 481,000 3,800.00 0.00 gpm 0.00% 0 1 0.00
Total $1,749,000 $0 0.00
Table 15:Allocation of 550-530 Intertie Expansion Costs
Per
Cost for
Total Project Expansion Expansion Cost of Expansion
Description Tigard Costs($ Ca aci Ca achy Capacity Units Ca acih' Ca acii\ Project Grou Added Capacity
Pipeline connecting 550G and 530 Zones-Design 197,000 3,136.00 442.80 gpm 14.12% 27,816 1 442.80
Pipeline connecting 550G and 530 Zones-Constructio 1,770MO 3,136.00 442.80 gpm 14.12% 249,924 1 0.00
Total $1,967,000 $277,740 442.80
Table 16:Allocation of Transmission&Distribution Ex ansion Costs
Percent Cost for
Total Project Expansion Expansion Cost of Expansion
Description Tigard Costs($) Ca aci Ca acitV Capacity Units Capacity Ca achy Project Group Added Capacity
Pipeline for installing PRV 550G-4 17,000 0.00 0.00 EDU 0.00% 0 0.00
Pipeline in Main St.&Tigard Ave. 101,000 0.00 0.00 EDU 0.00% 0 0.00
Total $118,000 $0 0.00
Table 17:Allocation of Administrative Facilities Ex ansion Costs
Percent Cost for
Total Project Expansion . Expansion Cost of Expansion
Description Tigard Costs($) Capacity Ca acity Capacity Units Capacity Capacity Project Group Added Capacity
Total $0 $0 0.00
Table 18:Allocation of Field O s.Expansion Costs
Percent Cost for
Total Project Expansion Expansion Cost of Expansion
Description Tigard Costs($ Capacity Capacity Capacity Units Capacity Capacity Project Group Added Capacity
Total $0 $0 0.00
Table 19.Allocation of Future Willamette Su Iv Ex ansion Costs
Percent Cost for
Total Project TEpct3nTCapacit),
Expansion Cost of Expansion
Description Tigard Costs($ Capa Units Ca achy Capacity Project Group Added Capacity
Total $0 $0 0.00
Table 20:Allocation of Exclude from SDC Expansion Costs
Percent Cost for
Total Project Expansion Expansion Cost of Expansion
Description Tigard Costs($) Capacity Capacity Capacity Units Capacity Capacity Project Group Added Capacity
550-6270-755970- 7,052 0.00 0.00 0 0.00% 0 0.00
Total $7,052 $0 0.00
Table 21: Calculation of Im ro_ment Fee Totals
Capacity
Available for Improvement Fee
System Component Growth Total
Groundwater/ASR 0.0% $0
PWB Supply 0.0% 0
LO-Tigard 100.0% 43,373,878
Bonita Pump Station 0.0% 0
Water Storage 26.1% 10,1 14,846
Pump Stations 0.0% 0
550-530 Intertie 31.8% 277,740
Transmission &Distribution 0.0% 0
Administrative Facilities 0.0% 0
Field Ops. 0.0% 0
Future Willamette Supply 0.0% 0
Exclude from SDC 0.0% 0
Total $53,766,464
Table 22: System Capacities for System Improvements
Additional
Capacity from
System Component Improvements Units
Groundwater/ASR 0.0 MGD
PWB Supply 0.0 MGD
LO-Tigard 6.8 MGD
Bonita Pump Station 0.0 MGD
Water Storage 3.0 MG
Pump Stations 0.0 gpm
550-5301ntertie 442.8 gpm
Transmission& Distribution 0.0 EDU
Administrative Facilities 0.0 EDU
Field Ops. 0.0 EDU
Future Willamette Supply 0.0 MGD
Exclude from SDC 0.0 0
Table 23: New Ca acity Available for Growth
Requirements per Additional EDUs
System Component EDU Units Available
Groundwater/ASR 0.0 gpd 0
PWB Supply 0.0 gpd 0
LO-Tigard 475.5 gpd 14,301
Bonita Pump Station 475.5 gpd 0
Water Storage 556.4 gallons 5,392
Pump Stations 473.7 gpd 0
550-530Intertie 0.1 gpm 5,845
Transmission&Distribution 1.0 EDU 0
Administrative Facilities 1.0 EDU 0
Field Ops. 1.0 EDU 0
Future Willamette Supply 0.0 gpd 0
Exclude from SDC 0.0 0 0
Table 24: Improvement Fee per EDU
Proposed
System Component Improvement SDC
Groundwater/ASR $0
PWB Supply 0
LO-Tigard 3,033
Bonita Pump Station 0
Water Storage 490
Pump Stations 0
550-530 Intertie 15
Transmission& Distribution 0
Administrative Facilities 0
Field Ops. 0
Future Willamette Supply 0
Exclude from SDC 0
Total $3,538
Table 25: Proposed SDC by Meter or Service Line Size
Meter or Service Line Size Reimbursement Improvement Total
5/8 x 3/4 Inch(I EDU) $2,936 $3,538 $6,474
1 Inch 7,831 9,438 17,269
1.5 Inch 23,479 28,298 51,777
2 Inch 38,126 45,950 84,076