HomeMy WebLinkAboutAnnual Reports - 4/1/2003TOWN OF ORO VALLEY
WATER UTILITY COMMISSION
ANNUAL REPORT
APRIL 2003
ORO VALLEY TOWN COUNCIL
Paul Loomis, Mayor
Richard Johnson, Council Member
Bart Rochman, Council Member
Werner Wolff, Council Member
Paula Abbott, Council Member
ORO VALLEY WATER UTILITY COMMISSION
Michael Caporaso, Chair
Leo Leonhart, Vice -Chair
Gordon Byrnes, Member
Gregg Forszt, Member
Jennifer Gillaspie, Member
Erin Loudermilk, Member
LaQuita Stec, Member
Wendell Yoder, Finance Subcommittee
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Chuck Sweet, Town Manager
Alan Forrest, Water Utility Director
Shirley Seng, Utility Administrator
David Andrews, Finance Director
Special recognition to OVWU staff who provided information, graphics, photos and, most of
all, their time to assist in the preparation of this report:
Mary C. Kobida George Kendrick Charles Soper
Iris Chaparro Carolyn Schneider Robert Jacklitch
Edgar Rivera Jeff Kane David Ruiz
TABLE OF CONTENTS
TOWN OF ORO VALLEY
WATER UTILITY COMMISSION
ANNUAL REPORT
APRIL 2003
SECTION TITLE
List of Acronyms
Index of Appendices
Executive Summary
Potable Water System Preferred Scenario
Renewable Water Resources
Reclaimed Water System
Groundwater Preservation Fee
Conservation
Water Quality
Water Supply
Revenue Requirements
O & M and Debt Service Requirements
Capital Improvements
Recommendation on Potable Water Rates, Fees & Charges
Financial Summary
Conclusion
Appendices
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LIST OF ACRONYMS
LIST OF ACRONYMS USED IN THIS REPORT
ADEQ
Arizona Department of Environmental Quality
ADWR
Arizona Department of Water Resources
AF
Acre Feet
CAGRD
Central Arizona Groundwater Replenishment District
CAP
Central Arizona Project
CCF
One Hundred Cubic Feet (1 ccf = 748 gallons)
CIP
Capital Improvement Plan
COLA
Cost of Living Allowance
CY
Calendar Year
EPA
Environmental Protection Agency
FY
Fiscal Year
GOVAC
Greater Oro Valley Arts Council
GPCD
Gallons Per Capita Per Day
GPM
Gallons Per Minute
IGA
Intergovernmental Agreement
IOC
Inorganic Compound
MCL
Maximum Contaminate Level
MD WID
Metropolitan Domestic Water Improvement District
O&M
Operations & Maintenance
OVWID#1
Oro Valley Water Improvement District #1
OVWU
Oro Valley Water Utility
POE
Point Of Entry
PWSMP
Potable Water System Master Plan
PQL
Practical Quantitation Limit
PVC
Polyvinyl Chloride
RWSMP
Reclaimed Water System Master Plan
SARWMS
Southern Arizona Regional Water Management Study
SCADA
Supervised Control And Data Acquisition
SOC
Synthetic Organic Compound
TCE
Trichloreoethylene
TTHM
Total Trihalomethanes
VOC
Volatile Organic Compound
pCi/L
Picocuries Per Liter
ppb
Parts Per Billion
ppm
Part Per Million
INDEX OF APPENDICES
APPENDIX
A. Potable Water Preferred Financial Scenario
1) Assumptions
2) Summary
3) Enterprise Fund 5-Year Projected Net Income Statement
4) Enterprise Fund 5-Year Projected Debt Service Statement
5) Enterprise Fund 5-Year Projected Cash Flow Statement
B. Reclaimed Water System Proformas
1) Projected Income Statement
2) Projected Cash Flow Statement
C. Water Quality
1) Water Quality Monitoring Schedule for Year 2002
2) Water Quality Testing Results
D. Water Supply
1) Figure 1: Present & Future Water Demands
2) Figure 2: Available Renewable Water Resources 2002
3) Figure 3: Estimated Renewable Water Resources 2030
4) Static Water Level Measurements
E. 5-Year Capital Improvements Plan
1) Existing System Improvements
2) Expansion Related Improvements
3) Reclaimed Water System
F. Proposed Rate Schedules
1) Proposed Rate Schedule RS-1
2) Tables for Monthly Charges RS-1
G. Alternative Rate Schedules
1) Alternative Rate Schedule RS-2
-� 2) Tables for Monthly Charges RS-2
3) Alternative Rate Schedule RS-3
a 4) Tables for Monthly Charges RS-3
H. Service Fees and Charges
1) Hydrant Meter Deposit
J 2) New Development Construction Inspection & Plan Review Fees
J I. Utility Statistics for Calendar Year 2002
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EXECUTIVE SUMMARY
TOWN OF ORO VALLEY
WATER UTILITY COMMISSION
ANNUAL REPORT
APRIL 2003
INTRODUCTION
In October, 1996 the Oro Valley Town Council (Mayor and Council) formed the Oro Valley
Water Utility Commission (Commission) to act as the official advisory body to the Mayor
and Council regarding water related issues. The functions and duties of the seven member
commission include reviewing and developing recommendations for water revenue
requirements, water rate and fee structures, and water system capital improvement planning.
The Commission is required to prepare an annual report to the Council regarding its
recommendations. This report is the Commission's sixth Annual Report. It includes
recommendations related to water conservation, revenue requirements, system operation and
maintenance, debt service, a five-year capital improvements plan, rate adjustments and
renewable water supplies.
The Executive Summary contains a briefing on the implementation of the recommendations
presented in the 2002 Annual Report as well as new recommendations specific to water
issues facing the Town in FY 2003-2004 and beyond. Explanations and financial analyses
that are more detailed may be found in the body of the report and the appendices.
POTABLE WATER RATES
The rates recommended by the Commission last year were adopted by Mayor and Council in
June 2002. Implementation of those rates provided a 4.9% revenue increase. The increase
was achieved by eliminating the 1,000 gallons of water that was included in the monthly base
rate. There were no changes in the base rates or commodity rates. Included in the changes to
the water rates was the establishment of a base rate for the 3/4" x 3/4" water meter.
The Commission's preferred revenue scenario and rate design as they related to the potable
water system are discussed in detail in the body of the report. Based on the analysis of five
year projected expenses and required revenue, the Commission recommends the following
rate structure for FY 2003-2004:
➢ The monthly base rates to increase by 2% and range from $12.25 to $1,224.00 per
month depending on the meter size.
➢ The Tier 1 commodity rate to increase by 1% or 2 cents per 1,000 gallons. The rate is
currently $1.90 per 1,000 gallons and will increase to $1.92 per 1,000 gallons.
➢ The Tier 2 commodity rate to increase by 8.5% or 20 cents per 1,000 gallons. The
rate is currently $2.35 per 1,000 gallons and will increase to $2.55 per 1,000 gallons.
➢ The Tier 3 commodity rate to increase by 8.3% or 25 cents per 1,000 gallons. The
rate is currently $3.00 per 1,000 gallons and will increase to $3.25 per 1,000 gallons.
➢ Implementation of the potable water rates to be delayed (— 3 months) until such
time as the financial analysis and revenue requirements related to the reclaimed
water system have been completed.
➢ Implement both potable water and reclaimed water rates simultaneously
through established rate setting procedures.
The proposed rate design will generate a 2% revenue increase allowing the utility to meet the
revenue requirements for this coming fiscal year. Additionally, the rate is designed to move
toward a "cost of service" rate and continue to promote water conservation.
The body of the report contains specifics on new fees to be established for FY 2003-2004.
The proposed fees for new development construction inspection and plan review are
designed to recover the utility's cost for performing these services.
RENEWABLE WATER RESOURCES
Activities undertaken this past year represent a continuation of those planned and reported in
previous years. Notably, the Town awarded a design contract for Phase I of the reclaimed
water system. It is anticipated that design of the reclaimed water system will be completed by
November 2003. Construction may begin as early as January 2004 and is scheduled to be
completed by June of 2005. Phase I will provide reclaimed water for turf irrigation north of
Tangerine Road. The reclaimed users include Stone Canyon Golf Course, Highlands at
Vistoso Golf Course, Sun City Golf Course and Woodburne Elementary School. Delivery of
reclaimed water to these customers will conserve potable water capacity by approximately
480,000,000 gallons per year. This is an equivalent amount of water to serve 4,000
residential customers 10,000 gallons of water per month for one year. Financing issues
related to the reclaimed water system are discussed within the debt service section of the
Report.
An intergovernmental agreement regarding permitting and operating managed in -channel
recharge of effluent in the Santa Cruz River was approved this year. A number of
municipalities and other water providers joined together to maximize the ability to recharge
and recover effluent water within the Santa Cruz River channel. The ultimate goal is to
acquire credits that may be used to augment renewable water resources in the future. Details
of the agreement may be found in the body of the Report.
RENEWABLE WATER RESOURCES SURCHARGE
The renewable water resources surcharge is a proposed fee for the repayment of the
construction debt associated with the reclaimed water system infrastructure. The Commission
has recommended that the proposed surcharge become known as the Groundwater
Preservation Fee. This is an important component of the utility's supply management
function because it will assist in reducing excess demand on our groundwater supply and
thereby contribute to the goal of sustainable water management. Sustainable water
management is a concept whereby withdrawal of groundwater is limited to quantities less
than the rate of aquifer recharge or other such amounts that will not lead to groundwater
' mining or declining groundwater levels within the aquifer. Sustainable management is also a
goal of the Tucson Active Management Area, of which the Town of Oro Valley is a part.
Discussion on the proposed cost per customer may be found in the body of the Report
entitled Groundwater Preservation Fee.
CONSERVATION
The water conservation newsletter, Oro Valley Water Ways, was included in water bills every
other month through September 2002. Since then, the Purple Pipeline has been included in
water bills to educate the public on reclaimed water issues. The utility renewed its
y membership with the Water Conservation Alliance of Southern Arizona (Water CASA)
which has continued to provide the utility with welcome packets and conservation retro-fit
devices given to customers at no charge. Utility staff and Commission members stationed
booths at the GOVAC Jazz Festival and the Arts & Crafts Fair to promote water conservation
by speaking directly to residents and providing them with conservation related pamphlets
directed at all ages.
The utility recently filled its Water Conservation Specialist position. Addition of this
position will allow the utility to focus on the possibility and/or feasibility of changing the
building code with regard to hot water re -circulating pumps. It is also anticipated that the
Water Conservation Specialist will become more involved with customers on an individual
basis and will be able to demonstrate the effectiveness of water conservation by setting
examples with proper management of water use at Town facilities.
DEBT FINANCING
Last year, the Commission's preferred financial scenario included the sale of bonds to
finance capital improvements to the potable water system and to re -finance the debt to the
' City of Tucson for CAP water rights. During this past year, the capital improvements to the
existing system were re-evaluated based on how the reclaimed water system will impact the
' potable water system. The outcome resulted in a reduction in capital improvements to the
potable system As a result, the utility will be able to construct new facilities on a "pay as
you go" basis and will not need to re -finance the debt to the City of Tucson.
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Financing issues for the reclaimed water system have not yet been finalized. The
Commission has recommended the sale of bonds to finance the capital costs. It was further
recommended that the debt be repaid with several sources of revenue. The first source of
revenue for repayment would be the Alternative Water Resources Development Fee which is
already in place. The second source of revenue would be the proposed Groundwater
Preservation Fee. Additionally, it has been recommended that the utility's commodity rate
for reclaimed water sales be established so that it will produce enough revenue to recover all
reclaimed water operating and maintenance costs. In the event there is a surplus, that surplus
would also be used for debt service.
WATER QUALITY
The utility is proud to report that it did not experience any water quality violations in
calendar year 2002 for Total Coliform bacteria. Considering the number of people involved
in the process and the ease with which contamination of a sample can occur, the fact that no
water quality violations occurred should be considered remarkable. Of the hundreds of other
water quality samples tested annually, no contaminant was found to exceed the Maximum
Contaminant Level (MCL).
In a related matter, the water utility incurred a "failure to monitor" violation in November
2002 for inadvertently failing to test the water system for nitrates. Upon discovery, the
utility notified the Arizona Department of Environmental Quality (ADEQ) and immediately
performed the testing. The results of the tests indicated that the nitrate levels were in
compliance with ADEQ regulations and at no time were the utility's customers exposed to
increased health risks.
WATER SUPPLY
Groundwater levels continued to decline placing added emphasis on the importance of
delivering renewable water supplies for both potable and non -potable uses. During calendar
year 2002, the water production system frequently operated between 95% - 100% of its
capacity during peak hours in the summer months.
Continuation of the drought and pumping of groundwater cause groundwater levels to
decline, which in turn reduces the production capability of the existing system. The
completion of new and/or replacement wells and increased reservoir capacity will help the
production system keep up with the demand until the reclaimed system is constructed and
golf courses are delivered a renewable source of water.
During a routine review of the Oro Valley Water Utility's Assured Water Supply (AWS)
Designation in late 2001, the Arizona Department of Water Resources (ADWR) found that
the Town's service area population had grown much faster than anticipated in 1995.
Concerned that we were approaching our original 10-year population projections several
years early, ADWR recommended the Utility apply for re -designation as soon as practical.
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n Based on this recommendation, the Town contracted with Brown and Caldwell during FY
n 2001-02 to prepare a new AWS Application, including the required hydrology report, for
submittal to ADWR.
In June of 2002, Brown and Caldwell completed and submitted the hydrology study and
AWS application to ADWR for their review. To date, we have not received a response from
ADWR regarding the status of our application; however, we anticipate a favorable response
in the near future. After ADWR approves the hydrology study, they will publish legal notice
of their intent to issue our AWS designation and conduct the required public hearings. Once
the ADWR Director is satisfied that all public comments have been adequately addressed by
the Department, he will issue the Oro Valley Water Utility a new AWS designation. In the
meantime, our current AWS designation remains valid.
CONCLUSION
The Oro Valley Water Utility Commission is proud to serve the Mayor and Council and
citizens of the Town of Oro Valley. We are pleased to present our Annual Report to the
Mayor and Council for their consideration. While much has been accomplished in the past
year, the Commission looks forward to direction regarding those items detailed in the Report.
We thank the Mayor and Council for their consideration, direction and guidance.
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TOWN OF ORO VALLEY
WATER UTILITY COMMISSION
ANNUAL REPORT
POTABLE WATER SYSTEM PREFERRED FINANCIAL SCENARIO
The Commission has arrived at a recommendation that adheres to the sound financial criteria
developed for the 1998 Annual Report. Described below, the Potable Water System
Preferred Financial Scenario also incorporates the elements of the other recommendations
detailed in this report.
To enable the Commission to more fully understand the long-term effect of identifiable
future variables that impact the utility's financial resources, estimates for revenue, O&M,
capital expenditures and debt service have been forecast for a period of five years.
Examples of major future expenses with varying long-term impacts are: costs incurred with
membership in the CAGRD; lost revenue from the removal of golf courses from
groundwater; costs for necessary capital improvements to the water system; growth factors;
and debt service. Every effort has been made to employ the most accurate available data and
reasonably conservative assumptions in the analysis of future financial requirements.
The Commission developed a set of parameters for use in developing the Potable Water
System Preferred Financial Scenario. The parameters used are as follows:
➢ Revenue increases are proposed only when necessary and in an amount no more than
necessary.
➢ Projected expenditures are adjusted for inflation, O&M expenses, debt service and
existing system improvements.
➢ Financial criteria established in 1998 must be met, setting the foundation for sound
fiscal operation.
➢ CAP water rights acquired from the City of Tucson will be financed by payment
directly to the City of Tucson
➢ No new debt is to be incurred as it relates to the potable water system.
➢ Golf courses are expected to be removed from groundwater over a period of years
commencing in FY 2005-2006.
➢ Revenue projections include a residential customer growth factor of 400 in all five
years. This is a conservative estimate based on the more recent trend in growth within
the Town.
➢ Expansion related revenue and expenditures are not considered for purposes of
establishing potable water rates. They are discussed separately in the report.
➢ Alternative water related revenue and expenditures are not considered for purposes of
establishing potable water rates. They are discussed separately in the report.
Revenue increases occur in each of the five fiscal years in Potable Water System Preferred
Financial Scenario. These increases allow the utility to anticipate changes in the future
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revenues and expenditures including the loss of revenue when the golf courses are phased off
groundwater. The scenario proposes generating needed revenue by modifying the monthly
base rates and the commodity rates.
Data for the five year projections assumes that both personnel and related costs will increase
by 3% annually. The O&M costs are assumed to increase annually based on inflation factors
received from the Arizona State Auditor General's office. In each year, the inflation factor is
less than 3%. Allowances have been included for power costs and increases in depreciation
relating to the addition of infrastructure. CAP water costs are anticipated to decrease and
recharge costs are scheduled to increase; however, these costs are established by state
agencies over which the Town has no control. CAGRD costs increase annually and then
decrease as golf courses are removed from groundwater. Interest and principal payments on
outstanding bonds gradually decrease over the five year period.
Projections in years 3, 4 and 5 include decreases in revenue when three of the golf courses
are no longer served groundwater. However, the utility will receive revenue from providing
the golf courses a renewable source of water. It is projected that the revenue received from
customers on the reclaimed system will be sufficient to recover the operations and
maintenance of that system with any surplus being used to repay the associated debt.
Therefore, revenue projections relating to the reclaimed water system have not been included
in the Potable Water System Preferred Financial Scenario. The Commission is
recommending that implementation of the proposed potable water rates be delayed until the
financial analysis and revenue requirements of the reclaimed water system have been
completed. It is further recommended that implementation of both the potable water and
reclaimed water rates occur simultaneously through established rate setting procedures.
Discussion on the preliminary reclaimed water commodity rates are contained in the
Reclaimed Water System section of this Report. Additionally, financial projections for the
reclaimed water system may be found in Appendix B.
Analysis of the Potable Water System Preferred Financial Scenario indicates that it meets the
established fmancial criteria. Retained earnings maintain a positive value and the net income
' of the utility does not reflect a loss for more than two consecutive years. Additionally, the
net revenues provide debt service coverage in excess of 1.0 times the annual debt service as
required by the bond covenants and depreciation is fully recovered by the rates. The total
cash reserves are maintained in excess of 15% of the expected cash outlays excluding capital
` expenditures.
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The FY 2003-2004 projected Income Statement, Debt Service Statement and Cash Flow
Statement for the preferred financial scenario may be found in Appendix A.
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RENEWABLE WATER RESOURCES
The Town of Oro Valley is located within the Tucson Active Management Area (TAMA),
one of five special water management areas within the State of Arizona. As such, the
Arizona Department of Water Resources (ADWR) regulates groundwater use throughout the
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TAMA. In general, ADWR requires water providers to institute conservation programs,
accurately measure and report groundwater pumpage, and within growing communities,
demonstrate a 100 Year Assured Water Supply (AWS), all aimed at eliminating groundwater
mining within the TAMA by the year 2025. In particular, the AWS provisions require the
use of renewable water supplies — directly or indirectly — as a means for bringing
(1 groundwater pumpage within the TAMA into balance. This concept is known as "safe
yield".
In order to meet these provisions, the Town of Oro Valley must acquire renewable water
resources in quantities adequate to meet both existing and future demands. The following is
a general description of the renewable water supplies available to the Town. This same
information is provided graphically in Figure 1 (water demands); Figure 2 (existing
resources); and Figure 3 (future resources) located in Appendix D.
The Town currently has a legal allocation to CAP water in the amount of 6,748 acre feet per
year. A portion of this allocation was acquired through the purchase of private water
companies by the Town (2,294 acre feet per year) and the remainder through an agreement
with the City of Tucson. In addition to this allocation, the Town anticipates acquiring a
portion of the currently unallocated Municipal and Industrial (M&I) CAP water as part of the
reallocation process conducted by the State. ADWR has recommended that the Town of Oro
Valley be allocated 3,357 acre feet per year, out of the approximate 60,000 acre feet per year
available through this process. The reallocation ultimately requires approval of the U.S.
Congress and is anticipated to occur within the next two years.
Currently, the infrastructure necessary to convey CAP water to the Town does not exist,
making direct use impossible at this time. However; the Town has been cooperating with
local water providers and the Bureau of Reclamation to develop a regional CAP delivery
system within the northwest Tucson area. In the meantime, the Town has been recharging a
portion of its CAP allocation and has accrued long-term storage credits (approximately 9,500
acre feet) that can be used to help meet its AWS requirements in the fixture.
In addition to CAP water, wastewater effluent is really the only other renewable water
resource available to the Town of Oro Valley. This resource is unique in the fact that it can
be recycled (reclaimed) to a quality suitable for landscape irrigation water, particularly for
large turf areas. Also, this is the only source of water available to the Town that actually
increases in volume as population increases.
Through the execution of a water settlement agreement between the Town of Oro Valley and
the City of Tucson in the year 2002, the Town acquired rights to the effluent generated
within its water service area. The volume of this supply, available for use by the Town, is
estimated to be about 1,800 acre feet in the year 2002 and increases to approximately 4,000
acre feet by the year 2030. Currently, the Town does not have the infrastructure in place to
take delivery of this water; however, plans are progressing for a transmission and distribution
system for reclaimed water and a managed in -channel recharge project for effluent within the
Santa Cruz River. Both of these projects are discussed in more detail later in this report.
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During the past 18 months, Town staff has been working with other water providers and
governmental agencies within the region to develop a managed recharge facility within the
Santa Cruz River channel to begin receiving recharge credits for effluent discharged into the
river. According to State law, those who have ownership of the effluent being discharged
into the river may apply to receive long-term recharge credits for the water actually
recharged. These credits are limited to 50% of the water recharged within the boundaries of
the managed recharge facility.
The proposed Lower Santa Cruz River Managed Recharge Project is located within Pima
County, along a 16 mile stretch of the Santa Cruz River. Secondary effluent is discharged to
the river from the Roger Road Wastewater Treatment Plant and the Ina Road Wastewater
Treatment Plant, where a significant amount of it recharges within the proposed project area.
Along with others, Oro Valley has legal ownership to a portion of the effluent discharged
into the Santa Cruz River and is interested in accruing long-term recharge credits associated
with its infiltration. To this end, a regional approach to permitting and operating the recharge
facility has been undertaken and a facility permit application was filed with the Arizona
Department of Water Resources in May of 2002.
Early in the process, the Marana area expressed concerns regarding the potential recovery of
these credits within their boundaries. In order to avoid litigation related to these issues, the
involved parties consented to develop an agreement aimed at resolving these issues. To this
end, the parties have successfully negotiated an Intergovernmental Agreement (IGA) to settle
the issue. A final permit for the facility is expected to be issued in April of 2003, with
accrual of recharge credits beginning shortly thereafter.
RECLAIMED WATER SYSTEM
The approval of Intergovernmental Agreements (IGA) with the City of Tucson (Tucson)
expedited the feasibility of implementing a reclaimed water delivery system to provide a
renewable source of water for turf irrigation. In September 2002, the Mayor and Council
approved the Reclaimed Water System Master Plan (RWSMP). The RWSMP identifies
specific supply and connection options; potential utility and right-of-way conflicts along
alignments; conversion issues of reclaimed users; infrastructure and its location; permitting
and regulatory concerns; capital cost estimates; and an economic analysis.
The reclaimed water system will be constructed in two phases. Phase 1 will supply
reclaimed water to turf areas north of Tangerine Road. The infrastructure required for Phase
1 includes two pump stations, a one million gallon reservoir, and approximately eleven miles
of transmission and distribution mains in varying sizes. The estimated cost to construct
Phase I is $13 million. Design engineering is underway and is expected to be completed by
November 2003 with construction expected to be completed by July 2005.
Phase 2 will supply reclaimed water to turf areas south of Tangerine Road. Potential
customers of Phase 2 include golf courses, schools and parks. The planned infrastructure
includes a two million gallon reservoir; a pump station; and approximately twelve miles of
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transmission and distribution mains and is estimated to cost $10 million. Delivery to Phase 2
customers is anticipated sometime in 2008.
Proposed financing for the project is expected to be obtained through the sale of Municipal
Property Corporation (MPC) bonds. Repayment of the debt is proposed to be accomplished
through a combination of reclaimed water user fees, alternative water resource impact fees
and revenue collected through the Groundwater Preservation Fee (GPF). The GPF is
discussed in detail below. In order to sell bonds, the utility will need to have an executed
' IGA with Tucson that identifies the conditions and costs associated with "wheeling" Oro
Valley's effluent through the City of Tucson's reclaimed water system. The Town will also
need to adopt an ordinance mandating the use of reclaimed water for turf irrigation when it
becomes available. Additionally, all fees intended to be a source of revenue to repay debt
'l must be in place prior to the sale of bonds.
The utility is recommending that the reclaimed source be purchased on an "interruptible"
basis for several years. The cost for Tucson to deliver Oro Valley's reclaimed water on an
interruptible basis is approximately 40% less than the cost to deliver it on a "non -
interruptible" basis. The utility is confident that with the available supply of reclaimed
water; extensive capital improvements the Town is making to the delivery system; and the
fact that Tucson has other customers receiving non -interruptible supplies through the same
infrastructure, it is unlikely the supply of reclaimed water to the Town would be interrupted
with the exception of Tucson plant failures. However, any temporary interruptions or
reductions in reclaimed water deliveries could be mitigated through use of the potable water
system As Tucson's demand for reclaimed water in the northwest area grows, the utility
may choose to re-evaluate its infrastructure needs or prepare itself to pay a higher rate for a
non -interruptible supply.
Discussions with Tucson have resulted in an estimated cost for reclaimed water of $331.86
per acre foot on an interruptible basis in FY 2005-2006. The cost is based on Tucson's
operating and maintenance costs for their reclaimed system and will be adjusted every year
for the prior year's costs. The interruptible rate has no component for capital costs which
saves the utility approximately $231 per acre foot.
Preliminary projections on the reclaimed water system's revenue and expenses may be
found in Appendix B. Assumptions used in these projections include capital costs for both
phases of the reclaimed system using a 5.5% interest rate, estimated operating and
maintenance costs; and standard depreciation rates. It is also assumed that the OVWU
commodity rate for reclaimed water will be equal to that of the potable water rate and that
there is no increase in the alternative water impact fees except for new turf facilities. The
projections demonstrate that the proposed rates will meet all operating costs with a surplus
being used to repay debt. The entire debt service is projected to be met using this surplus,
impact fees collected and revenue collected from the GPF. The projected cost to the typical
residential customer is approximately $2.50 per month and will increase over a period of
time to $4.00 per month.
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l GROUNDWATER PRESERVATION FEE
The Commission's 2002 Annual Report recommended the establishment of a "renewable
water resources surcharge" to help finance the delivery system that will provide a renewable
water supply for turf irrigation. The Commission is recommending that the surcharge be
titled the Groundwater Preservation Fee (GPF) to more accurately identify why the fee
will be assessed. As discussed in last year's report, it is proposed that the fee be assessed to
everyone who benefits from the use of renewable water supplies. The use of renewable
water supplies, such as reclaimed water, allows the utility to mine less groundwater, thus
preserving groundwater supplies for domestic uses.
All consumers will benefit from the preservation of groundwater; therefore, it is
recommended that all consumers pay their fair share of the cost to deliver a renewable supply
to the Town. It is further recommended that the GPF be established on a volumetric basis.
In other words, the cost to each consumer will be based on the volume of water used. The
less water that consumers use, the less they will pay.
Preliminary financial projections for the reclaimed water system are contained in Appendix
B. The projections will continue to be refined as actual costs become available. After design
of the Phase 1 Reclaimed Water System is completed, the project is publicly bid and the
bonds are sold, the utility will be able to finalize the costs and adjust the amount to be
assessed.
With the information available at the time of this writing, it is projected that initially the GPF
will be billed at 25 cents for each 1,000 gallons of water used. The average residential
customer uses 10,000 gallons of water per month, thus the cost for these customers would be
$2.50 per month. Projections indicate that it will be necessary to increase the fee up to $4.00
per month over the course of time. Again, the less water a customer uses, the less they will
pay.
Implementation of the GPF is needed as soon as possible to help build reserves to repay debt
incurred to construct the reclaimed water system infrastructure. The Commission will
forward its recommendation on the GPF later this fiscal year. As stated previously, the
Commission recommends that both the potable water and reclaimed water rates be
implemented simultaneously. As with all rates, fees and charges, the GPF will be reviewed
annually and adjusted as necessary.
CONSERVATION
In recognition of the current drought Arizona is experiencing and the impact such drought
can have on the operations of a public water system, the Mayor and Council instructed staff
-' to develop a policy to address such situations. Staff researched and evaluated drought and
water shortage policies adopted by other communities in Arizona. With this information and
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input from the Commission, staff developed a new water conservation and use reduction
policy to replace what existed in the Town Code. In general, the new policy directs the
utility to implement specific rules, regulations, penalties and plans for water conservation
during times of drought and water shortages. The Mayor and Council adopted the code
change in March 2003.
An ongoing conservation program can provide customers with information to assist them in
understanding the importance of conserving water. During FY 2002-2003 the conservation
program made significant progress toward its short-term goals. The Commission
recommends that the utility continue to improve and expand these conservation efforts. The
O&M expenditures for conservation are proposed to increase by $15,000 for a total of
$50,000 in FY 2003-2004. This will allow the utility to maintain an on -going conservation
program which includes the following:
➢ Membership in Water CASA
➢ Water Conservation Specialist to follow-up and maintain the conservation program
by targeting commercial and public facilities and to assist with customer education,
information and onsite visits or audits
➢ Bi-monthly publication of the Oro Valley Water Ways conservation newsletter and
the Purple Pipeline reclaimed water newsletter.
➢ Purchase educational materials such as workbooks, activity books and crayons for
students.
➢ Provide a conservation booth at GOVAC events such as the Arts & Crafts Fair and
Jazz Festival to distribute conservation information, educational materials, retrofits,
etc.
➢ Partner with other Town departments to decrease the use of irrigation water in and
around Town facilities.
➢ Participate in discussions and provide input as it relates to conservation issues with
existing and planned park facilities.
➢ Continued modification of the water rate structure to promote conservation.
➢ Participate with the Town library to provide conservation and educational materials
to Town residents.
➢ Miscellaneous/Other (workshops, training, other Town events that may arise)
The Commission reiterates its recommendation that a long-term conservation program be
established to provide objectives and guidelines to minimize the decline of groundwater
levels and to ensure that the Town has established codes where necessary for the protection
of our water resources and the enforcement of regulations. The following are proposed long-
term goals to be reviewed by the Commission in future years:
➢ Evaluate alternative funding sources such as grants.
➢ Promote and help facilitate the use of CAP and/or reclaimed water.
➢ Evaluate the cost of establishing rebate programs for low flow toilets, front loading
washing machines and hot water re -circulating pumps.
➢ Monitor and maintain Town owned irrigation systems in a manner that will set an
example of conservation for the customers.
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➢ Review existing plumbing codes to identify which conservation oriented
modifications are in need of change.
➢ Evaluate the options to establish a mobile landscape/irrigation unit to audit irrigation
systems for residents via obtaining sponsorship for the unit.
➢ Assist the water utility to achieve regulatory compliance with the Arizona
Department of Water Resources (ADWR) regulations and enforcement as it relates to
the Town's GPCD, assured water supply designations and replenishment
requirements through the CAGRD and groundwater decline.
It is the intent of the Commission to include these issues in the work plan for FY 2003-2004
as well as future years. The Commission looks forward to returning to Mayor and Council
with specific recommendations regarding proposed programs.
WATER QUALITY
The mission of Oro Valley Water Utility is to provide assurance that drinking water is safe,
clean, and meets all local, state, and federal drinking water health standards. In order to
protect public health, the United States Environmental Protection Agency (USEPA) sets
drinking water standards which all public water providers must meet. Regular monitoring
and testing of the water supply is required to assure customers are provided with safe water
in their homes and businesses. The USEPA regulations require water providers to regularly
test public drinking water supplies for bacteria and other microorganisms, and numerous
other natural -occurring or man-made organic and inorganic constituents.
Over the course of a year, the utility collects hundreds of water samples from numerous sites
including groundwater wells, reservoirs and pumping stations, and from locations throughout
the water distribution system specially selected to represent the entire water delivery system.
Each sample is tested for numerous constituents, which may include bacteria, minerals,
metals, or man-made chemicals. The USEPA sets national drinking water standards, which
are administered in Arizona by the Arizona Department of Environmental Quality (ADEQ).
The utility provides all water quality testing results to ADEQ and works closely with that
agency to ensure all federal and state standards are maintained.
It is important to remember that the detection of a contaminant in drinking water does not
necessarily represent a threat to public health. Current technology allows water utilities to
detect extremely low levels of contaminants in drinking water. Groundwater is the source of
all of the drinking water delivered by Oro Valley Water Utility. All drinking water, including
bottled water, may reasonably be expected to contain at least small amounts of some
contaminants. Oro Valley's groundwater contains dissolved minerals and organic
compounds, which have been leached from the rock, sediments, and plant materials through
which the water traveled. One would expect to find minerals such as calcium and
magnesium, chloride, bicarbonate, and sulfate, and metals such as iron, copper, arsenic, and
lead, which may be either beneficial or harmless at low concentrations, but harmful at high
concentrations. In addition to these naturally occurring contaminants, our groundwater may
contain contaminants resulting from human, industrial or domestic activities. For this reason,
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water utilities must currently monitor for approximately 90 regulated and 48 unregulated
contaminants.
Three inorganic contaminants of special interest are arsenic, fluoride, and nitrate. Fluoride
and arsenic are naturally occurring and tend to increase as water is drawn from greater
depths. Arsenic is a naturally occurring mineral known to cause cancer in humans at high
levels. Oro Valley Water Utility conducted compliance tests for arsenic in its wells in
Calendar Year (CY) 2001. The water systems arsenic levels ranged from "no detect" to 1.3
parts per billion (ppb). The EPA standard for arsenic is now 10 ppb. Fluoride is found
naturally in our drinking water. Oro Valley's groundwater has fluoride at low concentrations
ranging from 0.15 to 0.58 ppm, well below the EPA limit of 4.0 ppm. Fluoride at a level of
1.0 ppm has been shown to help prevent tooth decay. In concentrations substantially greater
than that, fluoride may be harmful. Nitrate is typically found in higher concentrations near
the surface of the groundwater table because it is frequently associated with fertilizer use,
septic tanks and other human activities. Nitrates in drinking water at levels above 10 parts
per million (ppm) could pose a health risk for infants and the elderly. High nitrate levels in
drinking water can cause blue baby syndrome. The concentrations for nitrates in Oro
Valley's water ranges from "no -detect" to 3.8 ppm.
The level of water hardness varies from one well to another. Hardness is a measurement of
the concentration of calcium and magnesium in the water. If the hardness of water is more
than 120 milligrams per liter (mg/1), then a water softener would probably reduce the
formation of scale within a household and make soap lathering easier. The hardness levels in
Oro Valley's water ranges from 32 mg/1 to 230 mg/1.
Other contaminants that may be present in source water are microbial contaminants, such as
viruses and bacteria, which may come from sewage, agricultural livestock, and wildlife.
Total Coliform is an indicator to more closely monitor the distribution system for possible
unwanted bacteria. During CY 2002, the utility performed 456 routine samples for Total
Coliform bacteria and had no positive samples. The utility adds chlorine as a precaution
against bacterial growth in its distribution system.
Inorganic Compounds (IOC), such as salts and metals, can be natural occurring or result from
urban stormwater runoff, industrial or domestic wastewater discharges, oil and gas
production, mining, or farming. Testing for contaminants in this group resulted in "no
detect" with the exception of fluoride and nitrate. Fluoride and nitrate levels were within the
limits set by USEPA as discussed above.
Synthetic Organic Compounds (SOC) include pesticides and herbicides, which may come
from a variety of sources such as agriculture, urban stormwater runoff, and residential uses.
None of these contaminants have been found in Oro Valley's water supply.
Volatile Organic Compounds (VOC) include such compounds as trichloroethylene (TCE)
and tetrachloroethylene (PCE). These compounds are volatile like alcohol or gasoline and
are made up of relatively small molecules, that allow them to migrate readily through soils.
Solvents such as TCE and PCE have been commonly used for cleaning machine parts and for
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dry cleaning. Despite the vulnerability of groundwater to such contamination, Oro Valley's
potable supplies are free of such contamination.
Total Trihalomethanes (TTHMs) are formed when chlorine combines with naturally
occurring organic material in water. Since the level of organic matter in our groundwater is
extremely low, these compounds are found at very low concentrations. The highest TTHM
result in any system sample was 0.0062 ppm. The standard is 0.8 ppm.
Adjusted Gross Alpha is a measure of radioactivity due to naturally occurring minerals in
groundwater. The standard for gross alpha radioactivity is set at 15 picocuries per liter
(pCi/1). The range for Oro Valley's water supply is "no detect" to 4.3 pCi/l.
Most lead and copper contamination occurs within the water distribution system and is
caused by corrosive water coming into contact with plumbing materials that contain lead.
Lead and copper are regulated by a Treatment Technique that requires systems to control the
corrosiveness of their water. If more than 10% of tap water samples exceed the action level,
water systems must take additional steps. For copper, the action level is 1.3 mg/L and lead is
0.015 mg/L. Water samples are taken within the customer's residence. As a result of
meeting compliance regulations over several years, the utility is only required to sample
every three years instead of annually. The Lead and Copper Rule established action levels
for lead (0.015 mg/1) and copper (1.3 mg/1). Sampling in 2001 had results for lead as "no
detect" and the highest copper level was 0.33 mg/1.
The groundwater delivered by Oro Valley Water Utility meets all drinking water standards
without treatment. However, approximately 0.5 ppm of chlorine is added to the drinking
water supply at well sites, reservoirs and other facilities to provide assurance that water
delivered to customers will remain free of microbiological contamination. Because of
chlorine's effectiveness in killing germs, disinfection with chlorine provides critical
protection for drinking water consumers. Around the world, millions of people suffer from
waterborne diseases due to microorganisms in their drinking water. In the United States, we
have few waterborne disease outbreaks because the water is very carefully monitored for
disease -causing organisms. Most water providers add a chlorine -based disinfectant to the
drinking water supply to kill existing microorganisms.
A complete listing of all contaminants that the utility tests for and the most recent test results
may be found in Appendix C.
WATER SUPPLY
The aquifer beneath the Town of Oro Valley is currently the sole source of water resources
for potable and non -potable uses. Non -potable uses include turf irrigation of golf courses
and parks. The current state of the aquifer is affected by long-term and short-term rates and
distribution of groundwater withdrawals and recharge. Groundwater withdrawals occur at
the active water supply wells owned and operated by the Town and some privately owned
wells. Natural recharge occurs from the infiltration of surface runoff near the mountain
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fronts of the Santa Catalina and Tortolita Mountains and the stream beds of the Big Wash,
Canada Del Oro Wash and small washes in the area.
Current water demands supplied by withdrawals of local groundwater resources have
outpaced groundwater recharge, resulting in a local water deficit. It is estimated that the
average annual recharge from the local mountain fronts and stream channels total about
6,000 to 7,000 acre feet less than the amount withdrawn in 2002. Over the past several years,
dry conditions (drought) have persisted with less than normal precipitation and runoff. Not
only has the drought resulted in less recharge, it has caused a greater demand for water,
which further exacerbates the current deficit. As a result, marked water level declines at
wells have been experienced. Rates of decline over various time periods are provided in
Appendix D. The largest rates of decline have occurred in the central east portions of Oro
Valley's water service area, which has the largest concentration of high capacity wells.
Demand for water in Oro Valley has increased significantly since its incorporation and have
more than doubled within the last ten years. Continued growth is expected for Oro Valley;
however, at a slower rate than we experienced from 1990 to 2000. Current demand
projections for the 2030 — anticipated build -out date of the service area — approach 17,000
acre feet per year. Over this period, alternative water resources including effluent and CAP
water will supplement groundwater resources to meet demands. Appendix D includes
figures that illustrate Oro Valley's current (2002) and future (2030) water demands, along
with the available renewable water resources corresponding to these time frames.
Static groundwater level measurements taken in January and February of this year indicate an
average decline of 6.3 feet. Current system demand coupled with less than average rainfall
over the past three years is a large contributor to the falling levels. Detailed information on
the individual wells may be found in Appendix D.
During a routine review of the Oro Valley Water Utility's Assured Water Supply (AWS)
Designation in late 2001, the Arizona Department of Water Resources (ADWR) found that
the Town's service area population had grown much faster than anticipated in 1995.
Concerned that we were approaching our original 10-year population projections several
years early, ADWR recommended the Utility apply for re -designation as soon as practical.
Based on this recommendation, the Town contracted with Brown and Caldwell during FY
2001-02 to prepare a new AWS Application, including the required hydrology report, for
submittal to ADWR.
As part of their review, the State looks to see that the water provider can meet three basic
criteria prior to issuing an AWS designation: 1.) physical availability of water supplies; 2.)
acceptable (potable) water quality; and 3.) financial capability. In order for the Town to
' prove the physical availability of water, we must demonstrate that sufficient local
groundwater resources are physically available for the proposed water uses for the next 100
years. To this end, Brown and Caldwell has produced a hydrology report (Assured Water
Supply Hydrology Report for the Oro Valley Water Utility) that describes Oro Valley's water
demand, supply, and adequacy.
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The scope of work for the hydrology study included demand, supply, and calculated physical
availability of groundwater resources for 100 years. Elements of demand include the
compilation of past, current, committed, and projected water demands for the Oro Valley
Water Utility, other major water providers, and other water users within the study area.
Elements of supply include an evaluation of the current hydrogeologic conditions to assess
local groundwater resource availability. Elements of adequacy include analyses to quantify
water level impacts in 100 years.
In June of 2002, Brown and Caldwell completed and submitted the hydrology study and
AWS application to ADWR for their review. To date, we have not received a response from
ADWR regarding the status of our application; however, we anticipate a favorable response
in the near future. Once ADWR approves the hydrology study, they will publish legal notice
of their intent to issue our AWS designation and conduct the required public hearings. Once
the ADWR Director is satisfied that all public comments have been adequately addressed by
the Department, he will issue the Oro Valley Water Utility a new AWS designation. In the
meantime, our current AWS designation remains valid.
REVENUE REQUIREMENTS
Water Utility Enterprise Fund:
The Commission and Town staff analyzed the revenue and cash flow requirements necessary
to operate and maintain the system, funds needed for capital improvements and debt service
payments on outstanding bonds. Revenues and cash flows were projected for FY 2003-2004
based on anticipated annual growth in the customer base of 400 residential customers and
water consumption patterns similar to CY 2002. Projected operating expenses were
developed by the water utility staff. Capital expenditures will be funded with water rates and
depreciation.
The following table indicates the amount of water sales revenue that would be realized by a
2% revenue increase and increased service connections of 400:
FY 2002-2003
Revenue Estimate
FY 2003-2004
Revenue Projection
Dollar
Increase
$8,238,000
$8,381,000
$143,000
Connection Fee Fund:
In October of 2000, Mayor and Council approved the sale of $6,770,000 in bonds to finance
three years of growth -related infrastructure. During FY 2003-2004 the last of the scheduled
projects will be completed. All impact fees collected are pledged to repay the debt. To
continue to have growth -related infrastructure in place prior to the demand, it will be
necessary to continue to finance the costs. It may be prudent to re -finance the existing debt
and increase the amount of the debt to finance future infrastructure.
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The utility is in the process of updating the Potable Water System Master Plan (PWSMP) as
a result of the slow down in residential and commercial growth, where the growth is actually
taking place, and the resulting changes in infrastructure requirements. Thus, the CIP as
shown is subject to change. Upon completion of the PWSMP update, the existing impact
fees will be evaluated to determine if the fees are still adequate for projected debt service.
The Commission will forward a recommendation on impact fees to Mayor and Council at
that time. The five year CIP may be found in Appendix E.
Alternative Water Resource Development Fee Fund:
Alternative water resource development fees are collected for each new connection to the
potable water system. These fees have not increased since they were originally adopted by
Mayor and Council in 1996. Completion of the Reclaimed Water System Master Plan
(RWSMP) will help the utility evaluate infrastructure needs and related costs and substantiate
the existing fee or justify increasing the fees. To date, there have been no capital
expenditures from this fund but during FY 2002-2003 design engineering costs for the Phase
I Reclaimed Water System were paid from the fund. The timing and estimated costs to
construct the Reclaimed Water System are detailed in the five year CIP which may be found
in Appendix E.
O & M AND DEBT SERVICE REQUIREMENTS
Because of the timing of the preparation of this report relative to the Town's budgeting
process, the Commission recognizes that both the projected revenues and the projected
expenses may need to be revised. The amounts shown below and used in the financial
analysis may differ from those included in the Department Budget Request and the
Manager's Budget Review because of the availability of more recent and reliable
information. The Commission understands that OVWU staff, the Town Manager and the
Mayor and Council will adjust expenses to fit the final estimate of revenues based on the
action of the Council on the rate structure for FY 2003-2004.
The following table is a comparative summary of expenses and debt service requirements for
the water utility enterprise fund. Budgeted amounts for FY 2002-2003 are compared to the
projected expenses for FY 2003-2004 used in the financial analysis:
OVWU
Expenses
FY 2002-2003
Budget
FY 2003-2004
Projected
Change
Increase Decrease
Personnel
$1,583,942
$1,631,461
$ 47,519
O & M
$2,115,301
$2,186,680
$ 71,379
C.A.P.
$ 634,987
$ 343,700
$291,287
C.A.G.R.D.
$ 160,100
$ 258,746
$ 98,646
De rec. & Amort.
$1,601,600
$1 850,031
$248,431
Interest Payments
1 $29088,687
$2,044,309
$ 44,378
Principal Payments
$1 94,940
$1,350,610
$ 55,670
Totals
$9,479,557
$9,665,537
$185,980
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Personnel costs include no new employees but are projected to increase by 3% to fund
projected annual COLA/Merit increases.
The request for operations and maintenance costs reflect, among other items, increased
expenses for electrical power for pumping, water recharge costs, excess groundwater
withdrawal fees, chemicals for disinfection, plant and equipment repairs. Some costs are
fixed by outside agencies and others may be subject to change as the iterative process of
budget development is completed.
Principal and interest payments reflect debt service pursuant to bond repayment schedules for
the bonds related to acquisition of the utility; assuming management of the OVWID#1; the
bond issue in FY 2000-2001 for existing system improvements; and the acquisition of CAP
water rights.
The substantial increase in depreciation is due to the completion of approximately
$6,000,000 in infrastructure during the past year. Since this new infrastructure has been put
into service, it must now be depreciated over the expected life of each facility.
CAPITAL IMPROVEMENTS
Potable Water System:
This past year, the OVWU was active in constructing new water system capital
improvements for both the existing system and expansion related projects. By June 2003 it is
anticipated newly completed projects totaling more than $6 million will be on line providing
service to our customers. Capital improvement projects include one new well; two new
reservoirs with a total capacity of 1.4 million gallons; four new single and dual zone booster
stations; and 21,000 feet of new water mains in varying sizes.
WP94 Weil Under Construction
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The new well was drilled to a depth of
800 feet and will be equipped to provide
a capacity of 400 gallons per minute.
This additional groundwater supply will
help the utility meet peak day demands.
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The two new reservoirs are above ground steel
tanks. The reservoirs will provide operations
stability and enhance the utility's ability to
provide reliable supply for fire flow and peak
demands in the "D" and "G" zone water
service areas.
Resen-oir at WP#14
Booster Station at WP#14
The four new booster stations will enhance the utility's ability to move water throughout the
distribution system from the lower elevations to the higher elevations delivering the required
water volume and pressure. Design of the booster stations includes a feature which allows
for maintenance of the pumping units without any downtime of the station.
The new water mains are ductile iron and are the arteries of the water system. Water mains
move water from the supply source through the booster station and into the water service
areas. The mains vary in size and range from 8" to 16".
All of the new plant facilities have been designed and constructed with SCADA (Supervisory
Control And Data Acquisition) equipment. SCADA equipment has become the standard for
water utilities and allows utility staff to control and monitor the facility from a remote
FM
location. SCADA equipment has dramatically increased the utility's ability to identify,
respond and correct a problem in a timely fashion significantly reducing the number and
duration of water interruptions to its customers.
As discussed previously in this report, the Potable Water System Master Plan (PWSMP) is in
the process of being updated. It is anticipated that the five year CIP as detailed in Appendix
E will change upon completion of the PWSMP.
Reclaimed Water System:
The Reclaimed Water System Master Plan (RWSMP) was approved by Mayor and Council
in September 2002. The RWSMP identified the capital improvements required to receive
reclaimed water at Tangerine Road and Thornydale Road and deliver it to the golf courses
and schools within the Town of Oro Valley that are located north of Tangerine Road. The
capital costs slated for FY 2003-2004 include completion of the design engineering for Phase
1 of the reclaimed system; construction of a 1 million gallon reservoir, two pump stations and
transmission and distribution mains.
Details of the capital improvement plans may be found in Appendix E. Funding sources for
all capital projects include water rates, depreciation, bond proceeds, impact fees and the
proposed Groundwater Preservation Fund. The following table summarizes the utility's five
} year CIP:
Oro Vallev Water Utilitv Five Year Canital Imnrovement Prnornm
5 Year
C.I.P.
FY 03/04
FY 04/05
FY 05/06
FY 06/07
FY 07/08
Total
Existing
System
$ 2,377,000
$ 1,390,000
$3,027,000
$1,361,000
$1,091,000
S 9,246,000
Expansion
Related
$ 420,000
$ 1,000,000
$ 900,000
$ 0
$ 0
$ 2,320,000
Reclaimed
System
$ 3,935,000
$ 9,420,000
$1,007,000
$2,360,250
$7,065,750
$23,798,000
Total
$ 6,732,000
$11,810,000
$4,934,000
$3,721,250
$8,156,750
$35,354,000
RECOMMENDATION ON POTABLE WATER RATES, FEES & CHARGES
The Commission recommends modification of the monthly base rates and the commodity
rates to further encourage water conservation and to provide the revenue necessary to meet
projected expenditures. The usage thresholds in the commodity rates will remain the same.
A 2% revenue increase for the Potable Water System Preferred Financial Scenario is
proposed to be accomplished via the following changes:
➢ The monthly base rates to increase by 2% and range from $12.25 to $1,224.00 per
month depending on the meter size.
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➢ The Tier 1 commodity rate to increase by 1% or 2 cents per 1,000 gallons. The rate is
currently $1.90 per 1,000 gallons and will increase to $1.92 per 1,000 gallons.
➢ The Tier 2 commodity rate to increase by 8.5% or 20 cents per 1,000 gallons. The
rate is currently $2.35 per 1,000 gallons and will increase to $2.55 per 1,000 gallons.
➢ The Tier 3 commodity rate to increase by 8.3% or 25 cents per 1,000 gallons. The
rate is currently $3.00 per 1,000 gallons and will increase to $3.25 per 1,000 gallons.
➢ Implementation of the potable water rates to be delayed (— 3 months) until such
time as the financial analysis and revenue requirements related to the reclaimed
water system have been completed.
➢ Implement both potable water and reclaimed water rates simultaneously
through established rate setting procedures.
The proposed revenue increase would allow the utility enterprise fund to meet sound
financial criteria regarding the operations of a municipal utility while costs keep pace with
inflation, growth issues are not ignored, infrastructure is replaced as it is worn out and the
level of customer service improves.
The following table illustrates the proposed changes for a typical residential customer with
a 5/8% 3/4" meter. Other water providers in the region are included for comparison.
Water Provider
Monthly
Base Rate
Tier 1
Commodity Rate
Tier 2
Commodity Rate
Tier 3
Commodity Rate
OroValley Current
12.00
1.90
2.35
3.00
OroValley Proposed
12.25
1.92
2.55
3.25
MDWID
11.96
2.16
3.62
3.62
Marana
14.00
2.55
2.55
2.55
Tucson
5.35
1.03
3.50
4.92
Oro Valley Water and Tucson Water no longer include water usage in their base rates;
however, Marana includes 1,000 gallons and MDWID includes 2,000 gallons. A table
providing proposed rates for all OV WU meter sizes may be found in Appendix F.
Appendix F also contains tables that calculate the dollar increase and the percentage increase
that a customer would experience on a monthly bill under the proposed rate change. Monthly
bill amounts are calculated in 1,000 gallon increments for the 5/8" x 3/4" meters and a
variety of increments for larger meter sizes.
The Commission has provided the Mayor and Council with two alternative rate designs for
comparison purposes. These alternative rate designs may be found in Appendix G. Rate
Design RS-2 will produce more revenue than is required and will result in all customers
experiencing a 2.1 % rate increase. This design does not "appear" to reward the low end user.
`A
Rate Design RS-3 will not produce sufficient revenue, but the utility would be able to meet
its revenue requirements by reducing its costs proportionately. Under this design, customers
would experience varying rate increases depending on the volume of water used. However,
rate design RS-3 does not promote a "cost of service" rate design which is the utility's
ultimate goal.
The Potable Water System Preferred Financial Scenario recommendations result in
modification of both the base rates and the commodity rates. The average consumption for
customers with a 5/8"x 3/4" meter is approximately 10,000 gallons per month. The proposed
modification of the rate structure will further encourage water conservation of the utility's
customers whereby usage in excess of the annual average usage for each customer class is
penalized with higher rates. The Commission's recommended rate design is intended to
encourage voluntary conservation practices.
For comparison purposes, the following table provides a calculation of a monthly bill amount
for a 5/8"x 3/4" meter for several of the other water utilities surrounding the Oro Valley
Water Utility service area. Direct comparison of raw base rates and raw commodity rates is
not as effective because of the varying rate structures of each utility. A better comparison is
to calculate the cost for specific consumption levels during a summer month.
Water Utility
Cost for
10,000 Gallons
Cost for
18,000 Gallons
Cost for
27,000 Gallons
Cost for
40,000 Gallons
Oro Valley Current
31.00
49.80
72.25
111.25
Oro Valley Proposed
31.45
51.85
76.20
118.45
MDWID
29.24
46.52
68.88
115.94
Marana
34.40
57.35
80.30
113.45
Tucson
19.12
52.51
103.52
206.42
As previously described, the proposed revenue increase would allow the utility enterprise
fund to meet sound financial criteria regarding the operations of a municipal utility while
costs keep pace with inflation, growth issues are not ignored, infrastructure is replaced as it is
worn out and the level of service to the customer improves.
Review of the utility's service fees and charges revealed the existing hydrant meter deposit is
not sufficient to recover the utility's cost to replace a lost or broken meter. The Commission
is recommending that the hydrant meter deposit be increased from $750.00 to $1,200.00.
Hydrant meters are used to measure water taken from fire hydrants for construction purposes.
Refund of the hydrant meter deposit is predicated upon return of the meter in satisfactory
condition and payment of the contractor/developer's final bill. Details of the proposed fee
are located in Appendix H.
Additionally, the Commission is recommending that the utility implement service fees for
new development plan review and construction inspection. Other municipalities assess these
fees from developers to recover their labor costs for this work. These fees would be new to
the OVWU; however, establishing the fees is in keeping with the policy that "growth pays
for itself'. Implementation of the fees will provide a revenue source that will offset
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personnel costs and help minimize future rate increases. It is recommended that fees for
construction inspection be based on the linear feet of main that is inspected. Proposed fees
for construction inspection increase in 500 feet increments with 500 feet being the minimum.
The fees range from $365.00 to $2,345.00. The fees for hydraulic plan review and
design/construction plan review will vary depending on the number of pages in the plan set.
Hydraulic review fees will range from $155.00 to $230.00. Design/construction review fees
will range from $200.00 to $235.00. Both fee schedules include two reviews. Additional
reviews will be charged at $85.00 per review. Details of the proposed fees are located in
Appendix H.
No other adjustments to service fees and charges are necessary at this time; however, the
Commission recommends that the service fees and charges continue to be reviewed on an
annual basis.
FINANCIAL SUMMARY
Retained earnings are the cumulative measure used by enterprise funds to determine the
amount of earnings remaining after expenses are deducted from revenues since the inception
of operations. Using assumptions in the Potable Water System Preferred Financial Scenario,
the following table represents the projected retained earnings at June 30, 2004:
6/30/2003
Estimated Retained Earnings
Net Income (Loss)
6/30/2004
Projected Retained Earnings
$2,433,929
$479,239
$2,913,168
The utility is projected to have positive retained earnings of $2,913,168 at the end of FY
2003-2004 under the Potable Water System Preferred Financial Scenario. Maintaining
positive retained earnings is an important element of the financial criteria used to guide staff
in arriving at proposed revenue increases.
The retained earnings accumulated since 1996 has reached a significant balance given the
utility's goal of matching revenue and expenses to operate at a "break even" point.
Depreciation funds are used to meet debt service requirements on bond financed capital
projects. Rates have been increased to allow the utility to maintain a positive cash flow when
golf courses are removed from groundwater and to provide contingency funds for emergency
repairs. These have contributed to the retained earnings balance. Another contributing factor
is approximately $432,000 in equity obtained from the dissolution of the IGA between Oro
Valley and MDWID in FY 1998-1999. Also, in past years actual growth exceeded the
projections which were accompanied by a drier climate that produced more revenue than
anticipated. As this cash is used to finance capital improvements, the retained earnings
balance will decrease.
Cash flow is an analysis of all changes that affect the cash account. The following table
reflects the estimated cash balances at June 30, 2004:
J
J
24
J
6/30/2003
Estimated Cash Balance
Change in Cash Balance
6/30/2004
Projected Cash Balance
$5,788,360
($1,398,340)
$4,390,020
The cash balance is estimated to decrease by $1,398,340 at the end of FY 2003-2004. The
projected cash decrease is largely attributable to the use of cash on hand to finance capital
improvements and debt service.
CONCLUSION
The Commission presents this annual report for the review and consideration of the Mayor
and Council. The Commission is available to discuss this report in greater detail at a joint
study session or other appropriate forum
The Oro Valley Water Utility Commission is proud to serve the Town of Oro Valley and the
customers of its water utility. Much has been accomplished in the sixth year of the utility's
operation. The Commission extends their appreciation to the Mayor and Council for their
consideration and guidance and looks forward to their continued direction on issues
discussed in this report.
25
APPENDIX A
POTABLE WATER PREFERRED FINANCIAL SCENARIO
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7
TABLE FOR MONTHLY CHARGES & PERCENT INCREASE COMPARISON
CUSTOMERS WITH A 518 X 3/4" METER
'l PROPOSED BASE RATE 2.1% INCREASE IN BASE RATE FROM $12.00 TO $12.25 (INCLUDES 0 GALS)
PROPOSED COMMODITY 1.0% INCREASE IN TIER 1 FROM $1.90 TO $1.92 (0 - 10,000 GALS)
8.5% INCREASE IN TIER 2 FROM $2.35 TO $2.55 (10,001 - 25,000 GALS)
RS-1 8.3% INCREASE IN TIER 3 FROM $3.00 TO $3.25 (OVER 25,000 GALS)
GALLONS
USED
CURRENT
RATE
PROPOSED
RATE
AMOUNT
INCREASED
PERCENT
INCREASED
CUSTOMERS
IN USAGE
CATEGORY
PERCENT OF
CUSTOMER
BASE
0
12.00
12.25
0.25
2.1
Average Residentlal Usage
As of 12/31/02 there were
14,646 residential customers whose
water use averaged 10,000
gallons of water per month.
These customers represent
93.6 % of the total customer base.
1,000
13.90
14.17
0.27
1.9
2,000
15.80
16.09
0.29
1.8
3,000
17.70
18.01
0.311
1.8
4,000
19.60
19.93
0.33
1.7
5,000
21.50
21.85
0.35
1.6
6,000
23.40
23.77
0.37
1.6
7,000
25.30
25.69
0.39
1.5
8,000
27.20
27.61
0.41
1.5
9,000
29.10
29.53
0.43
1.5
10,000
31.00
31.45
0.45
1.5
11,000
1 33.35
34.00
0.651
1.9
12,000
35.70
36.55
0.85
2.4
13,000
38.05
39.10
1.05
2.8
14,000
40.40
41.65
1.25
3.1
15,000
42.75
44.20
1.45
3.4
16,000
45.10
46.75
1.65
3.7
17,000
47.45
49.30
1.85
3.9
18,000
49.80
51.85
2.05
4.1
19,000
52.15
54.40
2.25
4.3
20,000
54.50
56.95
2.45
4.5
21,000
56.85
59.50
2.65
4.7
22,000
59.20
62.05
2.85
4.8
23,000
61.55
64.60
3.05
5.0
24,000
63.90
67.15
3.25
5.1
25,000
66.25
69.70
3.45
5.2
26,000
69.25
72.95
3.70
5.3
27,000
72.25
76.20
3.95
5.5
28,000
75.25
79.45
4.20
5.6
29,000
78.25
82.70
4.45
5.7
30,000
81.25
85.95
4.70
5.8
31,000
84.25
89.20
4.95
5.9
32,000
87.25
92.45
5.20
6.0
33,000
90.25
95.70
5.45
6.0
34,000
93.25
98.95
5.70
6.1
35,000
96.25
102.20
5.95
6.2
36,000
99.25
105.45
6.20
6.2
37,000
102.25
108.70
6.45
6.3
38,000
105.25
111.95
6.70
6.4
39,000
108.25
115.20
6.95
6.4
40,000
111.25
118.45
7,2016.5
RS-1
TABLE FOR MONTHLY CHARGES AND PERCENT INCREASE COMPARISON
FOR CUSTOMERS WITH A 3/4" x 3/4" METER
BASE RATE _ $18.50
COMMODITY RATE: TIER 1 = $1.92
TIER 2 = $2.55
TIER 3 = $3.25
FOR 0 - 10,000 GALLONS
FOR 10,001 - 25,000 GALLONS
FOR USAGE OVER 25,000 GALLONS
GALLONS
USEDIN
1 MONTH
BILL AT THE
CURRENT
RATE
BILL AT THE
PROPOSED
RATE
AMOUNT OF
INCREASE
PER MONTH
PERCENT OF
INCREASE
0
18.00
18.50
0.50
2.87%
10,000
37.00
37.70
0.70
1.9%
25,000
72.25
75.95
3.70
5.1%
40,000
117.25
124.70
7.45
6.4%
50,000
147.25
1 157.20
9.951
6.8%
TABLE FOR MONTHLY CHARGES AND PERCENT INCREASE COMPARISON
FOR CUSTOMERS WITH A 1" METER
BASE RATE _ $30.75
COMMODITY RATE: TIER 1 = $1.92
TIER 2 = $2.55
TIER 3 = $3.25
FOR 0 - 16,000 GALLONS
FOR 16,001 - 27,000 GALLONS
FOR USAGE OVER 27,000 GALLONS
GALLONS
USEDIN
1 MONTH
BILL AT THE
CURRENT
RATE
BILL AT THE
PROPOSED
RATE
AMOUNT OF
INCREASE
PER MONTH
PERCENT OF
INCREASE
0
30.01
30.75
0.74
2.5%
16,000
60.41
61.47
1.06
1.8%
27,000
86.26
89.52
3.26
3.8%
38,000
119.26
125.27
6.01
5.0%
50,000
1 153.361
164.27
1 10.911
7.1 %
TABLE FOR MONTHLY CHARGES AND PERCENT INCREASE COMPARISON
FOR CUSTOMERS WITH A 1 1/2" METER
BASE RATE _ $61.25
COMMODITY RATE: TIER 1 = $1.92
TIER 2 = $2.55
TIER 3 = $3.25
FOR 0 - 38,000 GALLONS
FOR 38,001-64,000 GALLONS
FOR USAGE OVER 64,000 GALLONS
GALLONS
USEDIN
1MONTH
BILL AT THE
CURRENT
RATE
BILL AT THE
PROPOSED
RATE
AMOUNT OF
INCREASE
PER MONTH
PERCENT OF
INCREASE
0
60.00
61.25
1.25
2.1
38,000
132.20
134.21
2.01
1.5%
64,000
193.30
200.51
7.21
3.7%
90,000
271.30
285.01
13.71
5.1%
125,000
376.30
398.76
1 22.461
6.0%
n
n
C�
n
n
RS-1
TABLE FOR MONTHLY CHARGES AND PERCENT INCREASE COMPARISON
C)
FOR CUSTOMERS WITH A 2" METER
(')
BASE RATE = $98.00
O
COMMODITY RATE: TIER 1 = $1.92 FOR 0 - 80,000 GALLONS
TIER 2 = $2.55 FOR 80,001 - 134,000 GALLONS
_
TIER 3 = $3.25 FOR USAGE OVER 134,000 GALLONS
GALLONS
USEDIN
1 MONTH
BILL AT THE
CURRENT
RATE
BILL AT THE
PROPOSED
RATE
AMOUNT OF
INCREASE
PER MONTH
PERCENT OF
INCREASE
0
96.00
98.00
2.00
2 1 %%
80,000
248.00
251.60
3.60
1.5%
134,000
374.90
389.30
14.40
3.8%
275,000
797.90
847.55
49.65
6.2%
325,000
947.90
1 1,010.051
62.151
6.6%
TABLE FOR MONTHLY CHARGES AND PERCENT INCREASE COMPARISON
FOR CUSTOMERS WITH A 3" METER
BASE RATE = $196.00
COMMODITY RATE: TIER 1 = $1.92 FOR 0 - 186,000 GALLONS
TIER 2 = $2.55 FOR 186,001 - 311,000 GALLONS
TIER 3 = $3.25 FOR USAGE OVER 311,000 GALLONS
GALLONS
USED IN
1MONTH
BILL AT THE
CURRENT
RATE
BILL AT THE
PROPOSED
RATE
AMOUNT OF
INCREASE
PER MONTH
PERCENT OF
INCREASE
0
192.00
196.00
4.00
2.1
100,000
382.00
388.00
6.00
1.6%i
186,000
545.40
553.12
7.72
1.4%'..
311,000
839.15
871.87
32.72
3.9%'
450,000
1,256.15
1 1,323.62
67.471
5.4%1
TABLE FOR MONTHLY CHARGES AND PERCENT INCREASE COMPARISON
.e FOR CUSTOMERS WITH A 4" METER
a BASE RATE = $306.00
COMMODITY RATE: TIER 1 = $1.92 FOR 0 - 169,000 GALLONS
TIER 2 = $2.55 FOR 169,001 - 283,000 GALLONS
3 TIER 3 = $3.25 FOR USAGE OVER 283,000 GALLONS
GALLONS
USEDIN
1MONTH
BILL AT THE
CURRENT
RATE
BILL AT THE
PROPOSED
RATE
AMOUNT OF
INCREASE
PER MONTH
PERCENT OF
INCREASE
0
300.00
306.00
6.00
2.05/.
100,000
490.00
498.00
8.00
1.6%'.
169,000
621.10
630.48
9.38
1.5%',
283,000
889.00
921.18
32.18
3.6%
350,000
1,090.00
1 1,138.93
1 48.93
4.5%'
RS-1
TABLE FOR MONTHLY CHARGES AND PERCENT INCREASE COMPARISON
FOR CUSTOMERS WITH A 6" METER
BASE RATE = $612.00
COMMODITY RATE: TIER 1 = $1.92 FOR 0 - 1,800,000 GALLONS
TIER 2 = $2.55 FOR 1,800,001 - 3,006,000 GALLONS
TIER 3 = $3.25 FOR USAGE OVER 3,006,000 GALLONS
GALLONS
USEDIN
1MONTH
BILL AT THE
CURRENT
RATE
BILL AT THE
PROPOSED
RATE
AMOUNT OF
INCREASE
PER MONTH
PERCENT OF
INCREASE
0
600.00
612.00
12.00
2.07%
1,000,000
2,500.00
2,532.00
32.00
1.3%
1,800,000
4,020.00
4,068.00
48.00
1.2%
3,000,000
6,840.00
7,128.00
288.00
4.2%
5,000,000
12,836.10
13,623.80
1 787.701
6.1%
TABLE FOR MONTHLY CHARGES AND PERCENT INCREASE COMPARISON
FOR CUSTOMERS WITH A 8" METER
BASE RATE = $1,224.00
COMMODITY RATE: TIER 1 = $1.92 FOR 0 - 1,800,000 GALLONS
TIER 2 = $2.55 FOR 1,800,001 - 3,006,000 GALLONS
TIER 3 = $3.25 FOR USAGE OVER 3,006,000 GALLONS
GALLONS
USEDIN
1 MONTH
BILL AT THE
CURRENT
RATE
BILL AT THE
PROPOSED
RATE
AMOUNT OF
INCREASE
PER MONTH
PERCENT OF
INCREASE
0
1,200.00
1,224.00
24.00
2.0°/a
1,000,000
3,100.00
3,144.00
44.00
1.4%
1,800,000
4,620.00
4,680.00
60.00
1.3%
3,000,000
7,440.00
7,740.00
300.00
4.0%
5,000,000 1
13,436.10
14,235.80
799.701
6.0%
GOLF COURSE CONSERVATION RATES TO BECOME EFFECTIVE WHEN USAGE
EXCEEDS THE ARIZONA DEPT. OF WATER RESOURCES ANNUAL ALLOTMENT.
APPENDIX G
ALTERNATIVE RATE SCHEDULES
N
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M
TABLE FOR MONTHLY CHARGES & PERCENT INCREASE COMPARISON
CUSTOMERS WITH A 5/8 X 3/4" METER
PROPOSED BASE RATE 2.1% INCREASE IN BASE RATE FROM $12.00 TO $12.25 (INCLUDES 0 GALS)
PROPOSED COMMODITY 2.0% INCREASE IN TIER 1 FROM $1.90 TO $1.94 (0 - 10,000 GALS)
2.0% INCREASE IN TIER 2 FROM $2.35 TO $2.40 (10,001 - 25,000 GALS)
RS-2 2.0% INCREASE IN TIER 3 FROM $3.00 TO $3.06 (OVER 25,000 GALS)
GALLONS
USED
CURRENT
RATE
PROPOSED
RATE
AMOUNT
INCREASED
PERCENT
INCREASED
CUSTOMERS
IN USAGE
CATEGORY
PERCENT OF
CUSTOMER
BASE
0
12.00
12.25
0.25
2.1
Average Residential Usage
As of 12/31/02 there were
14,646 residential customers whose
water use averaged 10,000
gallons of water per month.
These customers represent
93.6 % of the total customer base.
1,000
13.90
14.19
0.29
2.1
2,000
15.80
16.13
0.33
2.1
3,000
1 17.70
18.07
0.371
2.1
4,000
19.60
20.01
0.41
2.1
5,000
21.50
21.95
0.45
2.1
6,000
23.40
23.89
0.49
2.1
7,000
25.30
25.83
0.53
2.1
8,000
27.20
27.77
0.57
2.1
9,000
29.10
29.71
0.61
2.1
10,000
31.00
31.65
0.65
2.1
11,000
33.35
34.05
0.70
2.1
12,000
35.70
36.45
0.75
2.1
13,000
38.05
38.85
0.80
2.1
14,000
40.40
41.25
0.85
2.1
15,000
42.75
43.65
0.90
2.1
16,000
45.10
46.05
0.95
2.1
17,000
47.45
48.45
1.00
2.1
18,000
49.80
50.85
1.05
2.1
19,000
52.15
53.25
1.10
2.1
20,000
54.50
55.65
1.16
2.1
21,000
56.85
58.05
1.20
2.1
22,000
59.20
60.45
1.25
2.1
23,000
61.55
62.85
1.30
2.1
24,000
63.90
65.25
1.35
2.1
25,000
66.25
67.65
1.40
2.1
26,000
69.25
70.71
1.46
2.1
27,000
72.25
73.77
1.52
2.1
28,000
75.25
76.83
1.58
2.1
29,000
78.25
79.89
1.64
2.1
30,000
81.25
82.95
1.70
2.1
31,000
84.25
86.01
1.76
2.1
32,000
87.25
89.07
1.82
2.1
33,000
90.25
92.13
1.881
2.1
34,000
93.25
95.19
1.94
2.1
35,000
96.25
98.25
2.00
2.1
36,000
99.25
101.31
2.06
2.1
37,000
102.25
104.37
2.12
2.1
38,000
105.25
107.43
2.18
2.1
39,000
108.25
110.49
2.24
2.1
40,000
111.251
113.55
2.30
2.1
RS-2
TABLE FOR MONTHLY CHARGES AND PERCENT INCREASE COMPARISON
FOR CUSTOMERS WITH A 3/4" x 3/4" METER
BASE RATE = $18.50
COMMODITY RATE: TIER 1 = $1.94 FOR 0 - 10,000 GALLONS
TIER 2 = $2.40 FOR 10,001 - 25,000 GALLONS
TIER 3 = $3.06 FOR USAGE OVER 25,000 GALLONS
GALLONS
USEDIN
1 MONTH
BILL AT THE
CURRENT
RATE
BILL AT THE
PROPOSED
RATE
AMOUNT OF
INCREASE
PER MONTH
PERCENT OF
INCREASE
0
18.00
18.50
0.50
2.8%
10,000
37.00
37.90
0.90
2.4%
25,000
72.25
73.90
1.65
2.3%
40,000
117.25
119.80
2.55
2.2%
50,000 1
147.25
150.40
1 3.151
2.1%
TABLE FOR MONTHLY CHARGES AND PERCENT INCREASE COMPARISON
FOR CUSTOMERS WITH A 1" METER
BASE RATE = $30.75
COMMODITY RATE: TIER 1 = $1.94
TIER 2 = $2.40
TIER 3 = $3.06
FOR 0 - 16,000 GALLONS
FOR 16,001 - 27,000 GALLONS
FOR USAGE OVER 27,000 GALLONS
GALLONS
USEDIN
1 MONTH
BILL AT THE
CURRENT
RATE
BILL AT THE
PROPOSED
RATE
AMOUNT OF
INCREASE
PER MONTH
PERCENT OF
INCREASE
0
30.01
30.75
0.74
2.5%
16,000
60.41
61.79
1.38
2.3%
27,000
86.26
88.19
1.93
2.2%
38,000
119.26
121.85
2.59
2.2%
50,000 1
155.26 1
158.571
3.311
2.1%
TABLE FOR MONTHLY CHARGES AND PERCENT INCREASE COMPARISON
FOR CUSTOMERS WITH A 1 1/2" METER
BASE RATE = $61.25
COMMODITY RATE: TIER 1 = $1.94
TIER 2 = $2.40
TIER 3 = $3.06
FOR 0 - 38,000 GALLONS
FOR 38,001 - 64,000 GALLONS
FOR USAGE OVER 64,000 GALLONS
GALLONS
USEDIN
1MONTH
BILL AT THE
CURRENT
RATE
BILL AT THE
PROPOSED
RATE
AMOUNT OF
INCREASE
PER MONTH
PERCENT OF
INCREASE
0
60.00
61.25
1.25
2.1
38,000
132.20
134.97
2.77
2.1%
64,000
193.30
197.37
4.07
2.1%
90,000
271.30
276.93
5.63
2.1%
125,000 1
376.30 1
384.03
1 7.731
2.1%
RS-2
TABLE FOR MONTHLY CHARGES AND PERCENT INCREASE COMPARISON
FOR CUSTOMERS WITH A 2" METER
BASE RATE = $98.00
COMMODITY RATE: TIER 1 = $1.94 FOR 0 - 80,000 GALLONS
TIER 2 = $2.40 FOR 80,001 - 134,000 GALLONS
TIER 3 = $3.06 FOR USAGE OVER 134,000 GALLONS
GALLONS
USEDIN
1 MONTH
BILL AT THE
CURRENT
RATE
BILL AT THE
PROPOSED
RATE
AMOUNT OF
INCREASE
PER MONTH
PERCENT OF
INCREASE
0
96.00
98.00
2.00
2.1 7/6
80,000
248.00
253.20
5.20
2A%
134,000
374.90
382.80
7.90
2.1%
275,000
797.90
814.26
16.36
2.1%
325,000
947.90
1 967.26
19.361
2.0%
TABLE FOR MONTHLY CHARGES AND PERCENT INCREASE COMPARISON
FOR CUSTOMERS WITH A 3" METER
BASE RATE = $196.00
COMMODITY RATE: TIER 1 = $1.94 FOR 0 - 186,000 GALLONS
TIER 2 = $2.40 FOR 186,001 - 311,000 GALLONS
TIER 3 = $3.06 FOR USAGE OVER 311,000 GALLONS
GALLONS
USEDIN
1 MONTH
BILL AT THE
CURRENT
RATE
BILL AT THE
PROPOSED
RATE
AMOUNT OF
INCREASE
PER MONTH
PERCENT OF
INCREASE
0
192.00
196.00
4.00
2.1
100,000
382.00
390.00
8.00
2.1%
186,000
545.40
556.84
11.44
2.1%
311,000
839.15
856.84
17.69
2.1%
450,000
1,256.15
1,282.18
1 26.031
2.1%
TABLE FOR MONTHLY CHARGES AND PERCENT INCREASE COMPARISON
FOR CUSTOMERS WITH A 4" METER
BASE RATE = $306.00
COMMODITY RATE: TIER 1 = $1.94 FOR 0 - 169,000 GALLONS
TIER 2 = $2.40 FOR 169,001 - 283,000 GALLONS
TIER 3 = $3.06 FOR USAGE OVER 283,000 GALLONS
GALLONS
USEDIN
1 MONTH
BILL AT THE
CURRENT
RATE
BILL AT THE
PROPOSED
RATE
AMOUNT OF
INCREASE
PER MONTH
PERCENT OF
INCREASE
0
300.00
306.00
6.00
2.07/.
100,000
490.00
500.00
10.00
2.0%
169,000
621.10
633.86
12.76
2.1%
283,000
889.00
907.46
18.46
2.1%
350,000
1,090.00
1 1,112.48
22.481
2.1%
1
RS-2
TABLE FOR MONTHLY CHARGES AND PERCENT INCREASE COMPARISON
FOR CUSTOMERS WITH A 6" METER
BASE RATE = $612.00
COMMODITY RATE: TIER 1 = $1.94 FOR 0 - 1,800,000 GALLONS
TIER 2 = $2.40 FOR 1,800,001 - 3,006,000 GALLONS
TIER 3 = $3.06 FOR USAGE OVER 3,006,000 GALLONS
GALLONS
USEDIN
1 MONTH
BILL AT THE
CURRENT
RATE
BILL AT THE
PROPOSED
RATE
AMOUNT OF
INCREASE
PER MONTH
PERCENT OF
INCREASE
0
600.00
612.00
12.00
2.0%
1,000,000
2,500.00
2,552.00
52.00
2.1%
1,800,000
4,020.00
4,104.00
84.00
2.1%
3,000,000
6,840.00
6,984.00
144.00
2.1%
5,000,000 1
12,836.10 1
13,100.04 1
263.941
2.1%
TABLE FOR MONTHLY CHARGES AND PERCENT INCREASE COMPARISON
FOR CUSTOMERS WITH A 8" METER
BASE RATE = $1,224.00
COMMODITY RATE: TIER 1 = $1.94 FOR 0 - 1,800,000 GALLONS
TIER 2 = $2.40 FOR 1,800,001 - 3,006,000 GALLONS
TIER 3 = $3.06 FOR USAGE OVER 3,006,000 GALLONS
GALLONS
USEDIN
1MONTH
BILL AT THE
CURRENT
RATE
BILL AT THE
PROPOSED
RATE
AMOUNT OF
INCREASE
PER MONTH
PERCENT OF
INCREASE
0
1,200.00
1,224.00
24.00
2.0%
1,000,000
3,100.00
3,164.00
64.00
2.1%
1,800,000
4,620.00
4,716.00
96.00
2.1%
3,000,000
7,440.00
7,596.00
156.00
2.1%
5,000,000 1
13,436.10 1
13,721.041
284.941
2.1%
GOLF COURSE CONSERVATION RATES TO BECOME EFFECTIVE WHEN USAGE
EXCEEDS THE ARIZONA DEPT. OF WATER RESOURCES ANNUAL ALLOTMENT.
RS-3
TABLE FOR MONTHLY CHARGES AND PERCENT INCREASE COMPARISON
FOR CUSTOMERS WITH A 6" METER
BASE RATE _ $600.00
COMMODITY RATE: TIER 1 = $1.94 FOR 0 - 1.800,000 GALLONS
TIER 2 = $2.40 FOR 1,800,001 - 3,006,000 GALLONS
TIER 3 = $3.06 FOR USAGE OVER 3,006,000 GALLONS
GALLONS
BILL AT THE
BILL AT THE
AMOUNT OF
PERCENT OF
USEDIN
CURRENT
PROPOSED
INCREASE
INCREASE
1 MONTH
RATE
RATE
PER MONTH
p
600.00
600.00
0.00
0.0%
1,000,000
2,500.00
2,540.00
40.00
1.6%
1,800,000
4,020.00
4,092.00
72.00
1.8%
3,000,000
6,840.00
6,972.00
132.00
19%
5,0001000
12,836.10
13,088.04
251.94
2.0%
TABLE FOR MONTHLY CHARGES AND PERCENT INCREASE COMPARISON
FOR CUSTOMERS WITH A 8" METER
BASE RATE _ $1,200.00
COMMODITY RATE: TIER 1 = $1.94 FOR 0 - 1,800,000 GALLONS
TIER 2 = $2.40 FOR 1,800,001 - 3,006,000 GALLONS
TIER 3 = $3.06 FOR USAGE OVER 3,006,000 GALLONS
GALLONS
BILL AT THE
BILL AT THE
AMOUNT OF
PERCENT OF
USED IN
CURRENT
PROPOSED
INCREASE
INCREASE
1 MONTH
RATE
RATE
PER MONTH
0
1,200.00
1,200.00
0.00
0.0%
1,000,000
3,100.00
3,140.00
40.00
1.3%
1,800,000
4,620.00
4,692.00
72.00
1.6%
3,000,000
7,440.00
7,572.00
132.00
1.8%
5,000,000
13,436.101
13,697.041
260.94
1.9%
GOLF COURSE CONSERVATION RATES TO BECOME EFFECTIVE WHEN USAGE
EXCEEDS THE ARIZONA DEPT. OF WATER RESOURCES ANNUAL ALLOTMENT.
J
APPENDIX H
SERVICE FEES & CHARGES
ORO VALLEY WATER UTILITY
SERVICE FEES AND CHARGES
HYDRANT METER DEPOSIT
The Oro Valley Water Utility recommends increasing the amount of the Hydrant Meter
Deposit. The existing deposit is not sufficient to recover the utility's cost to replace a lost
or broken hydrant meter.
The Hydrant Meter Deposit is paid by the contractor/developer upon application for a
hydrant meter. The deposit accrues interest at a rate of 5% per year. Refund of the
deposit is predicated on the return of the hydrant meter in satisfactory condition and
payment of the final water bill.
The utility's cost to purchase a hydrant meter: $1,184.68
Existing Hydrant Meter Deposit: $ 750.00
Proposed Hydrant Meter Deposit: $1,200.00
r'•
' ORO VALLEY WATER UTILITY
SERVICE FEES AND CHARGES
�7
NEW DEVELOPMENT CONSTRUCTION INSPECTION FEES
The Oro Valley Water Utility recommends establishing a fee to recover the personnel
costs to provide new development construction inspection. The utility employs two full
- time construction inspectors to monitor the installation of water lines installed by and for
developers to provide water service throughout their development projects. Other costs
i are incurred for assistance from a Utility Service Operator III and administrative support
from the Senior Civil Engineering Technician and the Water Utility Director. The utility
would also include the pressure testing costs and the laboratory cost to perform bacteria
testing on the water lines prior to connecting the new facilities to the existing water
distribution system. Establishment of the new development construction inspection fee is
in keeping with the Town's policy that "new development pays for itself'.
The proposed fees were derived by using current wages plus a 3% allowance for COLA
and merit increases in FY 2003-2004 and a benefit factor of 30%. The construction
inspectors average 8.25 hours inspecting a 500 foot section of water main. The Utility
Service Operator III averages 4.50 hours per project assisting with the connection of the
new mains to the existing system. The Senior Civil Engineering Technician provides
operational support of approximately .75 hours per project and the Utility Director
provides administrative support of approximately .50 hours per project. The laboratory
costs are actual costs incurred for testing. The following table itemizes the costs to be
recovered:
PROPOSED NEW DEVELOPMENT CONSTRUCTION INSPECTION FEES
Length
Of Water
Main
in feet)
Constr.
Inspector
$24.46/Hr
Sr. Civil
Eng. Tech.
$24.46/Hr.
Util. Svc.
Op.I1I
$21.87/Hr.
Utility
Director
$61.02/1-Ir.
Lab
Cost
$18.00/Test
Total
Cost
Proposed
Fee
0-500
$201.80
$18.35
$98.42
$30.51
$18.00
$367.08
$365.00
501-1000
$403.59
$18.35
$98.42
$30.51
$36.00
$586.87
$585.00
1001-1500
$605.39
$18.35
$98.42
$30.51
$54.00
$806.67
$805.00
1501-2000
$807.18
$18.35
$98.42
$30.51
$72.00
$1026.46
$1025.00
2001-2500
$1008. 88
$18.35
$98.42
$30.51
$90.00
$1246.26
$1245.00
2501-3000
$1210.77
$18.35
$98.42
$30.51
$108.00
$1466.05
$1465.00
3001-3500
$1412.17
$18.35
$98.42
$30.51
$126.00
$1685.85
$1685.00
3501-4000
$1614.36
$18.35
$98.42
$30.51
$144.00
$1905.64
$1905.00
4001-4500
$1816.16
$18.35
$98.42
$30.51
$162.00
$2125.44
$2125.00
4501-5000
$2017.95
$18.35
$98.42
$30.51
$180.00
$2345.23
$2345.00
Proposed fee for repeat pressure tests: $60.00 per test
(Const. Insp. 2.50 hrs. @ $24.46/hr. = $61.15)
Proposed fee for repeat bacteria tests: $75.00 per test
(Const. Insp. 2.25 hrs. @ $24.46/hr. + $18.00 lab = $73.04)
All proposed fees to be collected prior to project acceptance.
ORO VALLEY WATER UTILITY
SERVICE FEES AND CHARGES
NEW DEVELOPMENT PLAN REVIEW FEES
The Oro Valley Water Utility recommends establishing a fee to recover the personnel
costs to provide new development plan review. The utility reviews new development
plans prior to a developer constructing water lines for their project. There are two
components to new development plan review. The utility performs a hydraulic review,
which includes computer modeling, to determine if the proposed project can be
adequately served by the utility. After the construction plans are completed, they are
presented to the utility for design review to insure that the proposed project will be
constructed pursuant to the utility's specifications. Establishment of the new development
plan review fees is in keeping with the Town's policy that "new development pays for
itself'.
The hydraulic review and the design review are proposed to have two separate fee
schedules since the two reviews can be performed at different times. The proposed fees
were derived by using current wages plus a 3% allowance for COLA and merit increases
in FY 2003-2004 and a benefit factor of 30%.
The hydraulic review is performed by the Engineering Division Administrator who
averages .50 hours per project and the Senior Civil Engineering Technician whose time
varies depending on the number of sheets contained in the set of plans. The proposed
fees for hydraulic plans include two reviews. The following table itemizes the costs to be
recovered:
PROPOSED NEW DEVELOPMENT HYDRAULIC REVIEW FEES
Sr. Civil
Eng. Tech.
$24.46/Hr.
Eng. Div.
Admin.
$41.16/1-1r.
Total
Cost
Proposed
Fee
1 Sheet
$134.53
$20.58
$155.11
$155.00
2 Sheets
$158.99
$20.58
$179.57
$180.00
3 Sheets
$183.45
$20.58
$204.03
S205.00
4 Sheets
$207.91
$20.58
$228.49
$230.00
Proposed fee for more than 2 reviews: $85.00 per additional review
Proposed fees to be collected prior to receipt of approved plans.
Page 1 of 2
NEW DEVELOPMENT PLAN REVIEW FEES continued
The design or construction review is performed by the Engineering Division
Administrator who averages 1.0 hour per project and the Senior Civil Engineering
Technician whose time varies depending on the number of sheets contained in the set of
plans. Additionally the Water Operations Superintendent averages approximately 1.0
hour to review the plans and the Utility Director averages .50 hours to perform the final
review and approval. The Engineering Aide spends 2.0 hours preparing the Line
Extension Agreement for each project. The proposed fees for design plans include two
reviews. The following table itemizes the costs to be recovered:
PROPOSED NEW DEVELOPMENT DESIGN REVIEW FEES
Sr. Civil
Eng. Tech.
$24.46/Hr
Eng. Div.
Admin.
$41.16/Hr
Engineer.
Aide
$20.90/Hr
Water Ops
Supt.
$37.90/Hr.
Utility
Director
$61.02/11r.
Total
Cost
Proposed
Fee
1 Sheet
$110.07
$41.16
$41.80
$37.90
$30.51
$261.44
$260.00
2 Sheets
$122.30
$41.16
$41.80
$37.90
$30.51
$273.67
$275.00
3 Sheets
$134.53
$41.16
$41.80
$37.90
$30.51
$285.90
$285.00
4 Sheets
$146.76
$41.16
$41.80
$37.90
$30.51
$298.13
$300.00
Proposed fee for more than 2 reviews: $85.00 per additional review
Proposed fees to be collected prior to receipt of approved plans.
Page 2 of
APPENDIX I
UTILITY STATISTICS FOR 2002
Utility Statistics for Calendar Year 2002
New Meters Installed 445
Services Established 2,532
Services Terminated 2,584
Service Orders Processed:
Meter re -reads
215
Water quality
57
Water pressure
108
Meter replacements
42
Service repairs
26
Leaks
181
Other
112
Total service orders:
741
741
Total Water Pumped
3,299,433,627 gallons
10,125.59 acre feet
Total Water Delivered
3,196,819,889 gallons
9,810.68 acre feet
Lost & Unaccounted For Water ` 84,206,415 gallons
258.42 acre feet
2.63 %
ADWR allows a maximum of up to 10%to maintain compliance status.
Accounts By User Type
As of December 31, 2002
15,093
■ Construction - 1 %
❑ Commercial - 1 %
■ Residential - 96%
■ Irrigation - 2%
®Turf - 0%
Gallons Sold By User Type
January - December 2002
223,757,000
1,850,119,000
911,590,000
48,911,000
159,249,000
Revenue By User Type
January - December 2002
$7iiai
$21213
18,387
$5,869,994
■ Construction - 2%
❑ Commercial - 5%
■ Residential - 58%
■ Irrigation - 7%
■ Turf - 28%
■ Construction - 3%
❑ Commercial - 6%
■ Residential - 69%
■ Irrigation - 8%
® Turf - 14%
Customers by Meter Size & User Type
As of December 31, 2002
Totals 14,992 131 346 108 193 28 7 9