HomeMy WebLinkAboutRES 2897CITY OF RENTON, WASHINGTON
RESOLUTION NO. 2897
A RESOLUTION OF THE CITY OF RENTON, WASHINGTON, ADOPTING
THE 1992 COMPREHENSIVE WATER SYSTEM PLAN.
WHEREAS, the City Council was presented the 1992 Comprehensive
Water System Plan; and
WHEREAS, the plan was discussed at a meeting of the Utilities
Committee; and
WHEREAS, a Public Hearing was held on the plan before the City
Council on March 23, 1992; and
WHEREAS, the plan is compatible with the intent of the City's
adopted and proposed Comprehensive Plans.
NOW, THEREFORE, THE CITY COUNCIL OF THE CITY OF RENTON,
WASHINGTON, DO RESOLVE AS FOLLOWS:
SECTION I. The above recitals are found to be true and
correct in all respects.
SECTION II. The 1992 Comprehensive Water System Plan is
hereby adopted by the City of Renton.
PASSED BY THE CITY COUNCIL this 4th day of May 1992.
APPROVED BY THE MAYOR this 4t
Approv s to
Lawrence J. War n, City Attorney
RES.203:4/7/92.
Marilyn V6P6tersen, City Clerk
25:�-d,jy of May 1992.
Clymer,. , i'N ,
m
CITY OF RENTON
COMPREHENSIVE WATER SYSTEM PLAN 1992
PUBLIC PRESENTATION
Chapter One
EXECUTIVE SUMMARY
The purpose of the Renton Comprehensive Water System Plan is to present a list of
recommended facility improvements and policy criteria to be used to construct and maintain a
potable municipal water supply system that is "adequate, safe and reliable". This plan is an
update of the plan adopted in 1984, and complies with WAC 248-54-580.
This plan is based on current City policy; regulations and laws adopted by Federal and State
government and the Renton City Council. This chapter is a summary of the issues and policies
discussed in the remainder of the Plan.
PLANNING
The City's service area population and land use trends are major factors affecting water system
planning. The service area boundaries have been established through agreements with adjacent
purveyors using the Skyway Coordinated Water System Plan and The East King County
Coordinated Water System Plan as the planning vehicles. Renton is required to use these plans
as the basis for service area boundaries by State law. The service area boundaries will not
change without annexation. Any areas that are annexed will likely contain water service areas
that do not meet Renton's standards for water supply and reliability. In addition Renton may or
may not have adequate supplies to service annexed areas, and therefore annexation must be
closely coordinated with the water utility.
The City is currently in the process of redefining land use and adopting policies that are
consistent with the Growth Management Act. The Growth Management Act will impact the
Water Utility. It will require closer coordination with the Planning Department, it will require
the development of additional water supplies, it will require the addition of pump stations,
reservoirs and pipelines, and will make development of these facilities more costly. The Water
Utility will require more staff to comply with these additional requirements.
Water Rights are becoming more difficult to obtain and are now a major component of water
system planning. Because of the length of time required to obtain water rights, water supplies
that will not be needed for many years must be pursued now. It is probable that sometime in the
future Renton will not be able to obtain additional water rights and must then either limit
growth, reduce water supply standards, or purchase water from a regional water supply
organization. Any of these events would require significant changes in Renton's water policies.
The lengthy and complicated water rights process will increase facility costs.
Renton's service area has been included in the East King County Regional Water Supply Plan,
and Renton has been asked to participate in developing regional water supply sources. These
sources may not benefit Renton's water supply system, and will be more costly to develop than
Renton's own groundwater supply system.
Renton has developed a long range water supply plan that compares the cost of various supply
alternatives and the feasibility of maintaining cost and quality controls on the alternatives.
Renton should continue to pursue their own City located groundwater supplies. Table 8-3 from
chapter 8 shows the anticipated growth in the water system over the next 50 year period, and
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CHAPTER ONE
also shows the supply sources that must be developed to meet the anticipated demand growth.
The table is repeated in this executive summary for reference.
Most of Renton's neighbors are experiencing reductions in water supply. Conservation is being
used aggressively in these areas in an attempt to extend the capabilities of their existing water
supply systems. Renton is not experiencing this water supply crisis but will be required to
implement the same water conservation activities.
Recent water quality legislation may require Renton to construct and operate a water treatment
plant or plants, that treats all of the City's water. This may be required even though the water
is high quality and meets the regulatory standards. Some treatment is required now to reduce
the corrosivity of the water and prevent heavy metals in the water system. Any water treatment
is expensive and will raise the cost of water supply.
' Population projections have a large impact on water supply planning, however, proposed land
use changes in the service area have a small impact. Water supply is more directly affected by
the number of people served than by the type of land use that is served. Fire flow requirements
and landscape irrigation have the largest impact on water system facilities.
Renton is a recognized regional leader in water policy and the application of technology to reduce
' water rates and improve water quality. As a result many new technologies are invented in
Renton and many regulatory policies and standards are tested and refined here. Renton is
therefore a frequent recipient of grant funding, and a respected participant in State and Federal
Government activities. These policies should be continued since they often result in standards
and requirements that are favorable for Renton's water customers.
' Water quality and supply reliability and redundancy standards and policies have the largest
impact on water supply costs, and facility planning and phasing. In fact, water resource planning
and water quality (aquifer) protection are the utilities highest priorities.
EXISTING SYSTEM
The existing water system is very well maintained and provides a high level of service. The
system is deficient however in booster station capacity to the Highlands 435 and 565 pressure
zones, and the West Hill pressure zones, and is deficient in reservoir storage capacity in most
pressure zones. These deficiencies have not presented past problems because the system is well
' maintained and experiences fewer than normal failures. They will be resolved however using a
phased construction schedule and capital improvement program. Highest priority has been given
to facilities that will accommodate growth and resolve these system deficiencies.
■ Water quality is high, however the system is vulnerable to groundwater contaminations. The
City is aggressively pursuing policies and procedures that will maximize the integrity of the
water supply system, and provide redundancy in the event of a contamination of any single
aquifer.
The water distribution system has been designed to provide maximum day demands and
simultaneous fire flows to all customers.
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Executive Summary
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A program is currently underway to replace the City's aging steel and AC watermains using a
phased replacement schedule. Facilities are replaced or upgraded as needed to comply with
regulatory changes and as components wear out.
FUTURE SYSTEM
The City has an adequate source of potable groundwater resources located within the existing
service area. Competing uses for these supplies has made their development more difficult.
Development of additional groundwater supplies should be pursued as aggressively as possible,
since it is assumed that political and or economic events will make future development
impossible. The City should not compromise their quality or quantity standards because of
r regional supply inadequacies, and therefore should not depend on the development of regional
supply sources for the future needs of the City.
Water conservation is currently being used in lieu of developing additional water supplies by
Renton's neighbors. Water reuse will inevitably be an attractive alternative to water
conservation. The regions largest potential source of reused water (the METRO treatment plant)
is located within Renton's service area. Renton will pursue the adoption of reuse standards to
capitalize on this potentially valuable resource.
' Renton will supply all customers located within the service area boundaries and will control and
administer all municipal services within the service area, including reused water.
IMPROVEMENTS
The City will prepare for and authorize a 20 year CIP budget to perform the work listed in the
Capital Improvement Plan. The improvements anticipated within the next 20 years include:
r
12,750 gpm of additional well capacity
27,000 gpm of additional booster station capacity
26 million gallons of additional storage capacity
Additional unspecified improvements include studies to assure future water supply, studies to
anticipate treatment requirements, studies to minimize operating costs, and the construction of
watermains to serve new customers and provide adequate fire protection to existing customers.
The capital improvements and stricter regulatory standards will raise Renton's water rates.
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