08/12/1975 - Packet TIGARDWATER DISTRICT .8641 S. W. COMMERCIAL ST.
TIGARD, OREGON 97223
PHONE (503) 639-1554
August 12, 1975
AGENDA
CALL TO ORDER
1. RESOLUTION TO APPROVE MINUTES OF LAST MEETING
2. VISITORS
3. RESOLUTION TO PAY VOUCHERS
4. RESOLUTION TO OFFICIALLY SUPPORT THE FORMATION OF A
WHOLESALE WATER COUNTY SERVICE DISTRICT (WASHINGTON
COUNTY) UTILIZING THE WILLAMETTE RIVER AS A SOURCE
`ww OF WATER
5. RESOLUTION TO APPROVE CONCEPT OF ST&R ENGINEERING
STUDY TO EITHER SINGLY OR JOINTLY DEVELOP THE
WILLAMETTE RIVER WATER SOURCE AT WILSONVILLE AND
TO INVITE THE CITIES OF WILSONVILLE, TUALATIN, AND
SHERWOOD TO PARTICIPATE
6. RESOLUTION TO REQUEST APPROVAL OF THE VOTERS IN MAY
1976 TO ISSUE GENERAL OBLIGATION BONDS TOTALING $1.7
MILLION TO CONSTRUCT A 10—MILLION GALLON TERMINAL
RESERVOIR AND APPROPRIATE TRANSMISSION MAINS
7. OTHER BUSINESS
ADJOURNMENT
ADMINISTRATOR'S REPORT
1. Resolution to approve minutes of last meeting{.
2. Visitors.
3. Resolution to pay vouchers.
4. Resolution to officially support the formation of, a wholesale
water county service district (Washington County) utilizing the Wil-
lamette River as a source of water.
It would appear that sufficient engineering studies have been
completed so that a determination can be made on the best possible
*low course of action on future water supply for the Tigard Water District.
The following studies are available:
a. Portland Bureau of Water Works (ST&R) 1974
Financial Plan (Wilsey & Ham) 1975
b. Tualatin Basin Water Master Plan (ST&R) 1973 (Update)
Financial Plan (Bartle-Wells) 1974
c. City of Lake Oswego (CH2M) 1974
d. Tigard Water District (ST&R) 1971 & 1975
The ST&R engineering study compares the limited alternatives
on future water sources available to the Tigard Water District. The
formation of a county service district appears overwhelmingly favorable
from a cost analysis basis. Without any capital investment by the water
district, water can be purchased at a substantial savings as shown on
page 32 of the study.
Our customers would be taxed for bonded indebtedness as would all
property owners within the established boundaries of the service district.
Since the tax base would be much broader, cost per individual customer
would be less.
-1-
law
ADMINISTRATOR'S REPORT (Continued)
If the county service district were formed and the Willamette River
source developed, the water source problems of the water district would
be solved. While it may not be as desirable from a controlling factor,
we would have some political influence in that most of the customers are
also constituents of the commissioners of Washington County.
There are some inherent disadvantages in supporting a plan whereby
"big" government is given political and economic control of the water
source. Estimated costs are invaribly too low, and as a general rule,
more funds are wasted in construction and operation. However, if unit
costs can be met as indicated, the Washington County Plan should be
supported.
It is very doubtful that such a plan can be implemented because of
opposition from other water districts and cities. There has been no
support from any other water purveyors in Washington County and Tigard
Water District would be the first to endorse the plan. The City of
w Sherwood's recent problems with the United Sewerage Agency may have
an adverse effect upon their support of Washington County.
-2-
%we ADMINISTRATOR'S REPORT (Continued)
5. Resolution to approve concept of ST&R engineering study to
either singly or jointly develop the Willamette River water source
at Wilsonville and to invite the Cities of Wilsonville, Tualatin,,
and Sherwood to participate.
While this may appear contradictory to the previous resolution,
the water district should proceed concurrently on an alternate course
of action to solve the water source needs of the district. It may
take years before the county finally makes a decision on the formation
of a wholesale water district. We cannot afford to waste time while
this decision is awaited. Planning and making preparations to utilize
the Willamette River source with the Cities of Wilsonville and Tualatin
can proceed now. The final decision requiring execution can be made at
a later date when more facts are known. For example, no one knows
whether ample water or water rights are available on the Willamette
River. It may evolve that no choices are open to the district and
Bull Run lies in our future.
Prior to making a final decision on developing the Willamette
River source there are several obstacles that must be hurdled, a few
girw of which are:
a. Approval of a permit by the Oregon State Engineer to
pump water from the Willamette River.
b. A determination from the U. S. Army Corps of Engineers
if water is available either "free" flowing or purchased water at the
dam sites.
c. Since water rights on the Willamette River have not
been adjudicated, consultation will be necessary with PGE to determine
if they will file a claim objecting to our use of the water.
d. Approval of the Boundary Review Commission to extend
a water main extraterritorially to the Willamette River. This decision
will be based upon recommendations presented by CRAG, LCDC, DEQ, and
Washington and Clackamas Counties.
It would be beneficial to know, at an early date, whether the
Cities of Wilsonville and Tualatin desire to participate in this ven-
ture. Additionally, commitments can be solicited from adjacent water
purveyors to purchase surplus water.
Costs to obtain these decisions are minimal, but it does take a
great deal of time and effort. A decision by you, at this time, will
start the wheels rolling.
-3-
ADMINISTRATOR'S REPORT (Continued)
The Bartle - Wells financial plan describes an alternate method
of financing the construction of a water source within the jurisdiction
of Washington County. Washington County as a fiscal agent could issue
general obligation bonds with voter approval or could act as a bond
payment guarantor for any area smaller than the entire county. With
approval of the voters, the proposed service area could be taxed to pay
off the bonds to finance construction.
It would appear that the first course of action would be for the
Board of Commissioners to invite representatives of Wilsonville, Tualatin,
and Sherwood to a special meeting to discuss a joint venture as proposed
to develop the Willamette River source. This discussion should be on the
highest level of each governmental agency so that firm understandings can
be achieved. Copies of the recent ST&R study have been presented to each
city.
Finally, it may be that you would prefer Bull Run water for the long
range and are willing to pay the price. However, it would seem that the
people should make the final determination at the polls after all the facts
are presented.
-4-
ADMINISTRATOR'S REPORT (Continued)
6. Resolution to request approval of the voters in May 1976 to issue
General Obligation bonds totaling $1.7 million to construct a 10-million
gallon terminal reservoir and appropriate transmission mains.
It has been learned that the proposed 20 million gallon reservoir
planned to be constructed in 1990 on Bull Mountain if the county service
district is formed will not be a distribution reservoir for our use.
However, the Tigard Water District must continue to have on hand three
days' average demand in compliance with the directives of the Oregon
State Board of Health.
The terminal reservoir concept for Tigard was recommended in the
ST&R study of 1971. No matter where the eventual source of water may
be, this concept is valid. It was suggested by the Board a few months
ago that the district consider one 10-million gallon tank instead of two
5-million gallon tanks to be located at our site at S. W. 125th and
Gaarde. (Ben Larson property). To construct a 10-million gallon
reservoir additional land will have to be purchased and approval granted
from Washington County for "conditional use". This land is now being
... surveyed to determine the best possible and economical location of the
structure.
The 1974 average daily demand of the district was 2.01 million
gallons per day (MGD). Present storage capacity is 7.4 million gallons.
Thus, when the average daily demand approaches 2.5 MGD, additional
reservoir capacity will be required. Within only two years, with an
estimated 12% annual increase in consumption, the average daily demand
will exceed 2.5 MGD. It would appear that plans should be made now to
construct additional storage capacity. The ST&R study of 1971 indicates
that 23 million gallons of storage should be on hand *year 2000. A 10-
MG tank would go a long way toward achieving that goal.
The true test of the adequacy and dependability of a water system
is best revealed during prolonged 90 degree weather such as we have been
experiencing lately. Deficiencies in the system become readily apparent.
It gives one the opportunity to study past engineering data to determine
if projections and recommendations were correct.
The following paragraphs are written to alert and advise you that
major capital improvements must be undertaken soon if the district is to
survive another summer without water restrictions.
'N."' -5-
ADMINISTRATOR'S REPORT (Continued).
Bull Run water was required for consumption commencing on July
22nd when Lake Oswego could not provide enough water. The minimum
monthly bill to Portland is now $204 instead of $5. A percentage of
the systems development charge will also be due, but it is unknown
how much. The water deficiency problem is basically that the district
needs 5 MGD during 90 degree weather. The maximum that can be pumped
into the distribution system from Lake Oswego, if water is available,
is 3 MGD. The wells produce less than 1 MGD. With Lake Grove Water
District now on Lake Oswego's system, Lake Oswego cannot provide, at
all times, 3 MGD. Bull Run must make up the difference of at least
1 MGD.
It would seem that 7.4 MG's of storage would carry the district
through these peak demand days; however, as explained below, the
district has only 2 MGD of usable storage to compensate for reduced
incoming sources of water. When these 2 MG's have been consumed, the
district is in a crisis situation.
The district has two service levels; namely, Bull Mountain (Hi
w.. Tor) and the valley at elevation 410 feet above sea level. 1.3 MG's
of storage are for the Bull Mountain system. These tanks are kept full
at all times, if possible, because it is necessary to pump every gallon
to the top of the mountain. A crisis could develop rapidly if electri-
city were cut-off or if pump(s) malfunctioned. Full tanks at Hi Tor
can provide water for up to two (2) days in case of an emergency.
This leaves 6.1 MG's of storage in the valley. #1 reservoir is
considered the master reservoir at 410 feet elevation and all others
are dependent upon the level of #1. Since all other reservoirs are
at or above 410 feet elevation, all can "float" on the system without
overflowing if #1 is not overflowing. Thus, no altitude control valves
are necessary if the water level of #1 is monitored closely.
Of immediate concern is the configuration of the Baylor tanks.
About one-half of the total storage there or 1 MG's are unusable because
the floor level is below #1 reservoir and water will not flow uphill.
The Hunziker Street pump station was installed to pump water from Baylor
to #1, but when this becomes necessary a crisis has already developed
because the other tanks in the system are so low. Further, this is a
very temporary solution for a short period of time. (hours). By
utilizing the Hunziker Street pumps, the 12" main at 72nd and Hunziker
(old Metzger District) must be turned off so that the water does not take
a circuitous route back to Baylor reservoirs. This, in turn, eliminates
A
-6-
ADMINISTRATOR'S REPORT (Continued)
a very important circulation loop via 72nd Avenue and causes the
Bonita Street pumps to work harder to push Clackamas River water
into the system. Because of the floor level of the Baylor reser-
voirs the amount of storage actually available to the district in
the valley becomes 5.1 MG's in lieu of 6.1 MG's.
The height of #1 reservoir is 24 feet. Therefore, with 5.1 MG's
available, about 4.5 feet of water represents 1 MG's. It develops
that, on a daily basis, 10 feet of water is needed to account for the
peak periods during the day. At 11 p.m. the reservoirs are at their
lowest point and the highest point is in the morning, a differential
of 10 feet of water during 90 degree weather. Another factor to con-
sider about #1 reservoir is that 5 feet of water must be available
at all times to ensure suction pressure for the pressurized system.
Without suction pressure, those residents on Little Bull Mountain are
out of water. Further, if air is allowed to get into the system due
to lack of suction pressure, it can cause havoc for homes and our
system.
'°+l' In summary, if 10 feet of water is needed for daily fluctuations,
5 feet for maintaining suction pressure, only 9 feet or 2 MG's are
available for shortages or curtailment of supply. In having to rely
upon others for "surplus" water, an effective reservoir capacity of
2 MG's is totally inadequate.
To construct another reservoir at elevation 410 feet in the
valley would not accomplish the needs of the district because only the
upper 19 feet (10 + 9) would be usable. The ST&R study of 1971
described the terminal reservoir concept in which a large reservoir
should be constructed at elevation 450 feet. This reservoir would
serve the other reservoirs in the valley and all water (10 MG) would
be usable.
It is estimated that the cost of a 10MG reservoir will be $1.5
million in 1976-77. Powell Valley Water District recently constructed
a 7 MG tank for $1 million. Another $200,000 will be needed to install
appropriate mains to the reservoir. Therefore, it is recommended that
a bond issue of $1 .7 million be requested of the voters in May 1976.
Annual cost for a $1.7 million bond issue would be about $150,000.
�.., -7-
ADMINISTRATOR'S REPORT (Continued)
The sources to provide these funds without another consumer
rate increase could be as follows:
a. Cancel most of the projected pipe replacements for the
next 3 fiscal years which total. $99,560, $84,800, and $78,500, respectively.
(Expenditure for this fiscal year is $80,200).
b. With voter approval, do not refund or reduce the exist-
ing consumer rates, although it appears hake Oswego will lose the
lawsuit and will be obligated to negotiate with TWD on the wholesale
rate of water.
c. Increase cost of meters to conform more closely to
adjacent water districts.
d. In 1979-80 the bond issue of 1959 will be fully paid
off, thus gaining $12,000 per year.
e. Increased revenue from volume sales of water.
f. Increased tax revenue due to increased assessed valua-
tions of real property.
In conclusion, it is recommended that the water district, regard-
less of any action on new water sources, take such action to construct
the required facilities for adequate storage.
7. Other business.
-8-
ADMINISTRATOR'S REPORT (Continued)
8. Water pumped from wells, calendar year 1975.
Actually pumped
Month Actual *Actual Allocation/Month in prior years:
1975 Cubic Feet Acre-feet Acre-feet Acre-feet
Jan 3,565,520 81.9 88 1970: 1,616
Feb 3,759,740 86.3 88 1971: 1,418
Mar 3,728,200 85.6 88 1972: 1,501
Apr 3,428,960 78.7 88 1973: 1,269
May 3,418,840 78.5 88 1974: 924
Jun 3,265,960 75.0 88
Jul 3,563,590 81.8 88
Total: 24,730,810 567.8 616
, ,,. * 1 acre-foot = 43,560 cubic feet
9. Unmetered water.
Pumped *Purchased Total Sold Loss
Month & Cu. Ft. Cu. Ft. Cu. Ft. Cu. Ft. Cu. Ft. Loss
Year x 1000 x 1000 x 1000 x 1000 x 1000 %
Jul 1975 3,564 7,519 (L.O.) 11,226 10,940 286 2.5%
143 (Port)
* 68.3% of water consumed during July 1975 was purchased from either
Lake Oswego or Portland.
Summary: Summary of Losses: FY 1972-3: 18.3%
FY 1973-4: 11.1%
FY 1974-5: 16.2%
Percentage of Lake
Oswego water purchased
in prior years: FY 1973-4: 52%
FY 1974-5: 60%
-9-
4160,
ADMINISTRATOR'S REPORT (Continued)
10. Work accomplished during July 1975.
a. TWD installed pump station with 3 - 25 hp pumps at new Hi
Tor reservoir site to provide adequate pressure in the area for up
to 500 homes.
b. TWD installed 700 feet of 12" D.I., including 20" steel
casing under two sets of railroad tracks along S. W. Hall Boulevard,
between Burnham and Commercial Street, to replace 6" O.D. steel pipe.
(pipe replacement).
c. TWD installed 550 feet of 12" D.I. + 2 fire hydrants along
S. W. Pacific Highway, Park to School Street, to replace 6" O.D.
steel pipe. (pipe replacement).
d. TWD removed 250 feet of 6" C.I. and 350' of 4" C.I. along
S. W. Hunziker Street to prepare for street improvement. The existing
12" main will not be removed or lowered.
r.. e. Private contractor installed 1080 feet of 8" C.I., 750 feet
of 6" C.I., and 135 feet of 4" C.I., + 3 fire hydrants for 53 single
family dwellings, (Summerfield, Phase III)., along S. W. Highland
Court and 109th Avenue for Tualatin Development Company. (Developer's).
f. Tigard Water District installed 17 meters. (4458 - 4442).
District also serves 113 meters in Metzger Water District. Total: 4571.
11. Work to be accomplished during remainder of fiscal year 1975-76.
August 1975:
a. TWD install 745 feet of 12" D.I., 1540 feet of 6" C.I., and
880 feet of 4" C.I., + 7 fire hydrants for 67 single family dwellings
plus multi-family units along S. W. Hazelwood Loop and 121st Avenue
(Englewood, Phase 2), for Commonwealth, Inc. (Developer's).
b. TWD install 2020 feet of 6" C.I. + 5 fire hydrants along S. W.
Greenway Avenue and Fairview Lane, near 115th and Gaarde, for development
called "Terrace Trails" for 46 single family homes, for Mrs. Lee Fritz
and Mr. Began. (Developer's).
-10-
vow ADMINISTRATOR'S REPORT (Continued)
c. TWD install 550 feet of 12" D.I. + 1 fire hydrant along S.W.
North Dakota Street, Tiedeman to Fanno Creek, for Milwaukie-Crane Co.
(Developer's and pipe extension).
d. TWD install 8" fire sprinkler tap + 3" compound meter for
new King City Convalescent Home located on Pacific Highway. (Developer's).
e. Private contractor install 435 feet of 6" C.I. + 1 fire hydrant
for Scott property, 7 duplexes, along S. W. Scott Court, near 98th
Avenue, for Mr. George Scott. (Developer's).
September 1975:
a. TWD install 800 feet of 12" D.T. + 1 fire hydrant along S. W.
Durham Road (on Sattler and Collier property) to complete circulation
loop. (pipe extension and developer's).
b. TWD install 1080 feet of 12" D.T. + 1 fire hydrant along S. W.
w,,.. Pacific Highway (west side), Park to Watkins, to replace 6" 0.D. steel
pipe. (pipe replacement).
c. TWD install 1070 feet of 12" D.I. + 1 fire hydrant along S. W.
Pacific Highway (west side), School to Walnut Street, to replace 4" O.D.
steel pipe. (pipe replacement).
d. Private contractor install 130 feet of 8" D. I. pipe and 800
feet of 6" D.I. pipe + 2 fire hydrants for Tualatin Development Company
along S. W. 114th Avenue and Summerfield Drive for multi-family units
in Summerfield called "Willow Brook" Apartments. (Developer's).
October 1975:
a. TWD install 2000 feet of 12" D.I. + 4 fire hydrants along S. W.
Pacific Highway (east side), Garrett to Main Street, to replace 6" O.D.
steel pipe. (pipe replacement). .
November 1975:
a. TWD install 550 feet of 8" D. I. along S. W. Pacific Highway,
McKenzie to Johnson Street, to complete circulation loop. (pipe extension).
-11-
ADMINISTRATOR'S REPORT (Continued)
December 1975:
a. Maintain and service all equipment.
January 1976:
a. Clean reservoirs and locate gate valves.
February 1976:
a. TWD install 1850 feet of 8" D.I., 640 feet of 6" D.I., +
4 fire hydrants along S. W. James and Marion Streets between 121st
and 124th Avenues to replace 4" 0.D. steel pipe. (pipe replacement).
March 1976:
a. TWD install 1200 feet of 8" D.I. on S. W. 113th Avenue, south
of Durham Road, to complete circulation loop (Developer's and pipe
extension).
April 1976:
a. Install 4" fire hydrants as follows:
(1) Hill View and 103rd Avenue. (S. E. corner)
(2) James Street and Howard Drive. (S. W. corner)
(3) 119th and No. Dakota (N.E. corner)(6" fire hydrant)
(4) 88th and Pinebrook (N. E. corner).
May 1976:
a. Install 4" fire hydrants as follows:
(1) Burlcrest, Buriheights & Summercrest (cul de sac)
(2) 121st and Summer (S. W. corner)
(3) 121st and Katherine (S. E. corner)
(4) 116th and Lynn (S. W. corner)
(5) Lynn, 118th and 119th (So. side between TL 135 and 136)
June 1976: Inventory in preparation for annual audit.
- 12 -