WORKING PAPER NO. 54
COLUMBIA RIVER BASIN COMPREHENSIVE PROJECT
For Water Supply and Pollution Control
| MUNICIPAL WATER NEEDS
IN THE PACIFIC NORTHWEST
TO THE YEAR 2020
FEBRUARY 1965
DISTRIBUTION
Prepared by WCW Project Staff
Reviewed by Cooperating
Agencies
Approved by
U. S. DEPARTMENT OF HEALTH, EDUCATION AND WELFARE
Public Health Service
Region IX
Division of Water Supply and Pollution Control
570 Pittock Block
Portland 5, Oregon
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ACKNOWLEDGEMENTS
Many people, cities, consulting engineers and agencies
have aided in some way with gathering and assimilating the vol-
uminous data used in this study, and they deserve a "thank you"
even though they cannot be named individually.
A special acknowledgement is issued to the Water Usage
Committee of the Pacific Northwest Section American Water Works
Association who allowed the use of their report as a basis for
this one.
Other references are listed at the end of the report.
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MUNICIPAL WATER NEEDS IN THE PACIFIC NORTHWEST
TO THE YEAR 2020
by Warren C. Westgarth, Sanitary Engineer
INTRODUCTION
How much water does City X, with 12,000 inhabitants residing
along the Snake River require to satisfy its municipal needs for
the month of July of the year 2010? One would need to be clair-
voyant to answer this type of question with certainty, and because
we cannot foresee the future, it is necessary to make use of past
data with its trends, periodicities and eccentricities to help
predict reasonable values for the future. In the Columbia River
Basin Comprehensive Project the requirement exists for reasonable
values of municipal per capita water needs in the Pacific North-
west for the design years from 1960 through 2020. Past data on a
national basis were found to be significantly different from
Northwest data and would, therefore, not suffice as bases for pro-
jecting per capita values in this area. Because of the differences
shown by the data at hand, it was necessary to study the Northwest
as a separate area in order to derive reasonable projected per
capita needs. The derived values in this paper were calculated
for use in comprehensive planning and may not fit the requirements
of consulting engineers and others who are interested in specific
municipalities. Several papers are referenced and some basic data
are appended for those who may wish to carry this work further.
Variables that were considered in this study of municipal
per capita water needs were:
1. Size of community or service area;
2. General state of the economy including living standards
of families, price of water and industrial influences;
3. Trends, periodicities, and eccentricities caused by meter-
ing, availability of water, war developments, and other man-made
influences;
4. Climatic variations such as rainfall and temperature.
Preliminary investigations indicated that if only metered
systems were studied and if major industrial uses were subtracted
from municipal values, climatic area and population would be the
large remaining variables. The climatic factor is important in
the Pacific Northwest because the variation is from a wet coastal
region to an arid plateau. The prevailing westerly winds carry
-------
moisture-laden air to the Coastal Range where dynamic cooling pre-
cipitates from 60 to over 100 inches of rain in a year. The rain-
fall lessens on the lee-side of the Coast Range to the order of
45 inches yearly and again increases in the aptly-named Cascades
where the high mountains cause considerably cooling with resultant
precipitation in the form of both snow and rain. On the lee-side
of the Cascades the precipitation drops to less than 20 inches,
much of which occurs as snow. This orographic type of rainfall
does not occur frequently in the June through October months, and
all of these areas can suffer severe drought periods of one to
five months. Lawn sprinkling and garden irrigation are necessary
adjuncts to other municipal uses and can cause exhorbitant in-
creases to normal averages.
METHOD OF STUDY
The Pacific Northwest area was arbitrarily divided into
three climatic designations, with the following general character-
istics:
1. Dry summer, winter rain, 20-50 inches/yr. precipitation
20 Arid summer, winter snow, 20 " " "
3. Coastal area
A fourth designation was the Pacific Northwest as a whole
region. Data from all sources in each of these categories were
studied with respect to population range, average use of water,
maximum monthly use, maximum daily use, and unaccounted for water.
These were put in terms of gallons per capita per day (gpcd) for
the year 1960 and were projected to the years 1980, 1985, 2000,
2010 and 2020 for design purposes.
Basic data accumulated for the studies are appended in brief
tabulations. More detailed data are in the files of the Columbia
River Basin Comprehensive Project of the U. S0 Public Health
Service in Portland, Oregon.
PRESENTATION OF RESULTS
Results from a study of this type may be presented in a myriad
of ways. In this case it was decided to present the summary table
which will be used for design first, and then the explanatory
material and substantiating data later.
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Table 1 shows the summary of mean values of 1960 use and 1960-
2020 needs for each of the above described designations, and for
population ranges of less than 10,000, 10,000 to 20,000, greater
than 20,000, and a combination of all sizes. The number of cities
and the percentage of urban Pacific Northwest (PNW) population that
each entry represents are included. Below the main tabulation are
listed summaries by other people or organizations with the re-
spective percentage of population represented. It is notable that
the present study includes 156 cities and represents 92 percent of
the urban PNW population. The mean value of 181 gpcd shown for
designation 4 is close to the 187 overall weighted average indi-
cated by all data combined, both of which are significantly in
excess of the 143 gpcd indicated by AWWA data and USPHS data as
the national average.
-------
TABLE 1
MUNICIPAL WATER USE STUDY
Values in Gallons per Capita per Day (gpcd)
_!/ Projections rounded to nearest 5 gpcd
Climatic
Designation
1 /
('
,?3
4
Population
Range
<;io,ooo
10-20,000
> 20,000
All Sizes
< 10, 000
10-20,000
> 20. 000
All Sizes
< 10, 000
10-20,000
>20,000
All Sizes
< 10, 000
10-20,000
>20,000
All Sizes
All sizes and climatic
designations
PNW AWWA 1962
National AWWA 1964
Forges 1957
Kollar & Youngwirth
(Includes Calif.) 1963
Westgarth (Ore.) 1952
Britton (Willamette)
1964
No. of
Cities
25
4
6
35
64
14
11
89
14
6
12
32
103
24
29
156
33
71
70
86
48
46
% of PNW
Urban
Pop.
3
2
22
27
6.5
6
14.5
27
2
2
35
39
11
10
71
92
67
84
80
410
30
22
Overall Weighted Average
1960
Jse
143
177
173
150
213
196
209
210
130
119
140
133
186
174
173
181
166
204
183
191
193
151
187
Design Year Need I/
1960 1980 1985 2000 2010 2020
170 195 200 215 225 230
210 235 240 255 265 270
210 230 240 250 260 270
180N/205 210 225 230 240
255 A 280 285 300 310 315
235/ 260 265 280 290 295
250 275 280 295 305 310
250 275 280 295 305 310
155 180 185 200 210 215
145 170 170 190 195 205
170 190 195 210 220 230
160 185 190 205 210 220
235 255 260 275 285 295
210 235 240 255 260 270
210 235 240 255 260 270
215 240 245 260 270 275
Data by questionnaire
Data by questionnaire
Data from 1954 PHS Inventory
Data from 1960 PHS Inventory
Data from individual city
records
Data from indiv.city records
Climatic Designation 1 - Dry summer, winter rain 20-50 in/yr pfecip.
2 - Arid summer, winter snow 20 in/yr "
^-3 - Coastal area
4 - Pacific Northwest in total
Pacific Northwest (PNW) population 5,490,000 (Urban 3,455,000
(Non-urban 2,035,000
Design Data - Per capita use increase =1.2 gpcd per year (1960-1980)
(Assumed for projections)= 1.0 gpcd per year (1980-2000)
= 0.8 gp^cd per' year (2000-2020)
Unaccounted for water = 20% ..' ' '-
Ratio to average day = 2.0 for max. mo. and 2.7 max.
No. of persons calculated per service = 3.35
day
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Data for each region were ranked and plotted on arithmetic
probability paper on which reasonably straight lines were formed.
Estimates of standard deviations in the order of ^40 percent were
obtained which show that the data do possess some hidden factors,
but are acceptable for comprehensive design as long as one recog-
nizes the high variation. Table 2 is a summary of the deviations.
TABLE 2
STANDARD DEVIATIONS OF 1960 PER CAPITA USE DATA
Standard
Climatic Mean Deviation in
Designation gpcd gpcd %
1 150 56 37
2 210 88 42
3 133 52 39
4 181 75 42
For the Columbia River Basin Comprehensive Project studies
the desired per capita factor is the water needed at the urban
limits. Most of the data found for this study were derived from
metered consumption values and so reflect use instead of need.
It was determined from a few fairly well-operated municipal-
ities that unaccounted for water is in the order of 20 percent.
This 20 percent figure was added to the 1960 use value to obtain
a 1960 need value which was subsequently used as a base for pro-
jections.
Extrapolation of data is always difficult because one does
not know whether to project on the same line as early data or to
assume a decreasing rate0 The PNW-AWWA committee plotted histor-
ical usage for 19 cities and showed for winter months a rise of
about 0.7 gpcd and for summer months about 9.5 gpcd. They con-
cluded that a one percent rise each year (about 1.7 gpcd per year)
would be a reasonable estimate. Figure 1 shows their plotted data.
Chronological increases for some selected cities in Figure 2 show
variations from no increase to 2.4 gpcd per year. Based on these
data and personal experiences of the Columbia River Basin Project
staff, it was decided to use an increase of 1.2 gpcd per year for
the first 20 years, 1.0 gpcd per year for the second 20 years, and
0.8 gpcd per year for the 2000 to 2020 period. It appears reason-
able to assume that cities will become more stabilized,that water
will be more valuable and therefore better regulated so that a de-
creasing rate is more realistic.
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CO
20
II
I I I I I I I I I I I I
IOTE: THESE POUTS ARE AVERAGES OF VALVES DETERMINED
IT EITRAPOLATIOI OF DATA TO IET COITIIGOUS DATA
FOR EACI STATIOI.
THESE DATA INCLUDE COMMERCIAL AID INDUSTRIAL
8SACE EXCEPT EXTREMELT LARCE USERS.
1115 I T I 9 1940 12)4 1945 I T I 9 I960 1234 1*55 I
I I IMO
-Source: /H/W
MAXIMUM SUMMER QUARTER
PER CAPITA USAGE
MINIMUM WINTER QUARTER
PER CAPITA USAGE
M
>7J
O
O
H
H
n
n
M
H
1-1
W
CO
FIGURE 1
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300
250
CHRONOLOGICAL PER CAPITA WATER USE VARIATION
Selected Cities in the Pacific Northwest
i A
I -f
Salem, Ore.
Portland, Ore.
Lewiston, Ida.
Spokane, Wn.
Seattle, Wn.
No increase
1.2 gpcd/yr
2.4 gpcd/yr
1.6 gpcd/yr
1.0 gpcd/yr
i
[£)
5!
O
6?
P-I
200
150
100
50
1930
1935
1940
1945
1950
1955
1960
1965
FIGURE 2
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8
Monthly variation of need has also been considered and is
shown in Table 3 for the four designations. These data show the
month of July as maximum use month. June, July, August and
September are all high use months.
TABLE 3
PERCENT VARIATION IN WATER NEEDS BY MONTH
Month 1234
January 73 67 77 71
February 72 70 89 73
March 68 71 77 70
April 75 86 91 80
May 75 90 86 81
June 120 143 111 101
July 185 186 123 179
August 175 145 138 161
September 120 121/y 113 119
October 88 81 97 84
November 77 72 78 74
December 76 66 89 76
Now we are ready to answer the question posed at the begin-
ning of the paper. How much water does City X, 12,000 population,
Snake River require for July 2010? Looking at Table 2, the City
in climatic designation 2 has a per capita need for 2010 of 290 gpcd
for the average day. From Table 3 it appears that 186 percent of
this value or 540 gpcd will be needed during the month of July.
The total need would be (540) (31) (12,000) = 201,000,000 gallons
or 6.5 mgd., The maximum day would be about (2.7) (290) (12,000) =
9.4 mgd.
In comparison with Eastern data, these values appear high,
but one must remember that thunderstorm activity aids in summer
irrigation in that region and that the Pacific Northwest has a
drought period during which draughts are made on municipal systems
for water for lawns, gardens and general cooling. This paper is
designed to illustrate the differences in need and to provide
reasonable facsimilies of unit needs in the Northwest.
-------
REFERENCES
1. "A Survey of Operating Data for Water Works in I960", AWWA
Staff Report, American Water Works Association, 2 Park Avenue,
New York, N. Y. 10016 (1964).
2. Supplement to 1 (1964).
3. Forges, Ralph, "Factors Influencing Per Capita Water
Consumption," Water and Sewage Works, May 1957.
4. "The Concept of Water Use," Water Newsletter, June 6, 1962
Water Information Center, Inc.
5. Kollar, K. L. and Wm. G. Youngwirth, "Adequacy of Water
Utilities in 1959," Willing Water, September 1963.
6. "Report of Water Usage Committee," Pacific Northwest Section
American Water Works Association, March 1964. (Holly A.
Cornell, Chairman.)
7. "A Training Course in Water Distribution," AWWA M - 8
Distribution Manual, American Water Works Association,
New York, 1962.
8. Residential Water Use Research Project, F. P. Linaweaver et al,
Johns Hopkins University, Baltimore, Maryland
a. Report on Phase One, October 1963.
b. Report 1 Phase Two, May 1964.
90 Westgarth, Warren C., "Significant Factors Governing
Municipal Water Consumption," Master's Thesis, Oregon State
University, Corvallis, Oregon, 1954.
10. Savini and Kammerer, "Urban Growth and the Water Regimen,"
USGS Water Supply Paper 1591-A, 1961.
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10
APPENDIX
TABLE 1-1
Basic Data for Water Consumption Study for
Climatic Designation 1
TABLE 1-2
Basic Data for Water Consumption Study for
Climatic Designation 2
TABLE 1-3
Basic Data for Water Consumption Study for
Climatic Designation 3
TABLE II
Data from "A Survey of Operating Data for
Water Works in 1960," AWWA, 1964
TABLE III
Summary of Data for 1960 (Metered Systems)
PNW AWWA Report, March 1964
TABLE IV
Willamette River Data, J. E. Britton, 1964
TABLE V
Fiscal Year 1951-52 Water Consumption
Estimate for Oregon, Warren C. Westgarth,
1953
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Town, State
Sublimity,Ore.
Oakland, Ore.
Carlton, Ore.
Mill City, Ore.
Mt. Angel, Ore.
Sheridan, Ore.
Independence,Ore.
Roberts Cr.W.D."
Canby, Ore.
Winston Dillard"
Woodburn,Ore.
Sweethome, Ore.
West Linn, Ore.
Gladstone, Ore.
Gresham, Ore.
Newberg, Ore.
Kellogg, Idaho
Dallas, Ore.
Lebanon, Ore.
Aloha Ore.
Forest Grove,Ore.
McMinnville,Ore.
Oregon City,Ore.
Hillsboro, Ore.
Centralia, Ore.
Milwaukie, Ore.
Albany, Ore.
Roseburg, Ore.
Springfield,Ore
Corvallis, Ore.
Salem, Ore.
Vancouver, Wn.
Salem, Ore.
Portland,Ore.
BASIC DATA FOR
APPENDIX
TABLE 1-1
WATER CONSUMPTION STUDY FOR
i:
CLIMATIC DESIGNATION 1
Year
1960
1960
1960
1960
1960
1960
i. 1960
1 1960
1960
1 1960
1960
1960
1960
1960
1960
1960
1960
1960
1960
1960
t. 1960
1960
1960
1960
1960
1960
1960
1960
1960
1960
1960
1960
1960
1960
POP.
490
865
960
1,289
1,428
1,763
1,930
2,100
2,168
2,250
3,120
3,353
3,933
4,000
4,200
4,204
5,060
5,072
5,858
7,000
7,000
7,656
7,996
8,232
9,250
11,300
12,926
13,500
19,616
20,667
50,500
52,250
70,000
373,000
Ave.Use Ratio to
Services mgd Max. Mo.
334 0.19 0.30
1,859 0.32 0.75
2,077 1.15 2.9
2,600 1.8 5.1
4,500 0.91
5,464 3.05 2.04
14,927 6.2
13,368 13.1
123,280 151
Ave . Day
Max. Day
0.39
1.73
1.33
2.3
2.4
2.8
3.88
2.45
2013
2.7
2.61
1.3
Ave.
>cc
132
220
84
75
123
100
147
150
185
128
116
203
173
100
179
129
125
270
180
46
166
225
104
123
97
187
225
202
168
185
123
180
180
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Town, State
Colburn, Idaho
Helix, Ore.
Adams, Ore.
Notus, Idaho
Nespelem, Wn.
Harrington,Wn.
Wilder, Idaho
Umatilla, Ore.
Pateros, Wn.
Huntington,Ore.
Stanfield,0re.
Lind, Wash.
Talent, Ore.
Athena, Ore.
Twisp, Wn.
Plains, Mont.
Mabton City, Wn.
Grand Coulee,Wn.
Republic, Wn.
Brewster, Idaho
Odessa, Wn.
Madras, Ore.
Granger, Wn.
Oroville, Wn.
Pilot Rock,Ore.
Chelan, Wn.
Ordfino, Idaho
CoIfax, Wn.
Dayton, Wn.
Okanogan, Wn.
Bonner's Ferry,Id
Colville, Wn.
Dayton, Wn.
Prineville, Ore.
Grangeville, Id.
Redmond, Ore.
Burns, Ore.
Dillon, Mont.
Emmett, Idaho
Hamilton, Mont.
Lakeview, Ore.
APPENDIX
TABLE 1-2
BASIC DATA FOR WATER CONSUMPTION STUDY FOR
CLIMATIC DESIGNATION 2
Ave.Use Ratio to
Year
1960
1960
1960
1960
1960
1960
1960
1960
1960
1960
1960
1960
1960
1960
1960
1960
1960
1960
1960
1960
1960
1960
1960
1960
1960
1960
1960
1960
1960
1960
:d 1960
1960
1960
, 1960
1960
1960
1960
1960
1960
1960
1960
Pop.
100
148
192
324
480
575
603
617
675
690
745
800
900
950
1,000
1,000
1,000
1,000
1,060
1,400
1,440
1,504
1,600
1,630
1,695
2,400
2,500
2,850
2,890
2,900
2,900
3,000
3,100
3,293
3,300
3,492
3,523
3,720
3,767
3,800
3,850
Services
65
72
320
300
362
360
565
500
611
1,068
1,270
1,181
1,273
1,160
1,213
1,034
1,400
mgd Max. Mo o
0.033 2.0
0.0165
0.05
0.08
0.15
0.07
0.51 3.02
0.33
0.09
0.25 2.0
0.10
0.28
0.39 1.07
0.66
1.05
0.685 2.3
0.28
1.45 2.3
2.02 3.5
1.37
1.59
1.03
12
Ave . Day
Max. Day
3.1
4.42
2.7
1.8
4.4
6.3
2.8
2.1
1.50
2.9
Ave.
8Pcd
210
192
86
123
212
210
132
425
286
218
97
250
75
300
190
328
90
200
190
236
139
166
63
245
165
135
156
233
360
200
172
167
339
105
84
290
560
368
248
418
267
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APPENDIX
TABLE 1-2
(Continued)
13
Town, State
Year
Pop.
Milton-Freewater,
Ore.
Weiser, Idaho
Sandpoint , Idaho
Hermiston, Ore.
Payette, Idaho
Ontario, Ore.
Omak, Wn.
Nob Hill (Yakima)
Wn.
Sunnyside, Wn.
Glend . Mont.
Bur ley, Idaho
Kellogg, Idaho
Livingston, Mont.
Riverton, Wyo.
Raw 1 ins, Wyo.
La Grande, Ore0
Ashland, Ore.
1960
1960
1960
1960
1960
1960
1960
1960
1960
1960
1960
1960
1960
1960
1960
1960
1960
East Wenatchee,0rel960
El lens burg, Wn.
Miles City, Mont.
Baker, Ore.
Mountain Home, Id.
Grants Pass, Ore.
Kalispell, Mont.
Moscow, Idaho
Clarkston, Wn.
Caldwell, Idaho
Moses Lake, Wn.
Lewis ton, Idaho
Pullman, Wn.
Bozeman, Mont.
Pendleton, Ore.
Pasco, Wn.
La ramie, Wyo.
Wenatchee,Wn.
Nampa, Idaho
Twin Falls, Id.
Walla Walla, Wn.
Rich land, Wn.
1960
1960
1960
1960
1960
1960
1960
196
1960
1960
1960
1960
1960
1960
1960
1960
1960
1960
1960
1960
1960
4,110
4,200
4,355
4,402
4,451
5,162
5,500
6,000
6,200
7,043
7,805
8,000
8,250
8,300
8,968
8,997
9.120
9,200
9,500
9,665
9,986
10,000
10,118
10,151
11,180
12,000
12,230
12,632
12,877
12,957
13,250
14,434
15 , 200
17,500
18,000
18,013
20,162
24,800
25,000
1,390
1,338
1,750
1,759
2,685
2,328
2,631
2,000
2,648
2,796
3,300
2,300
2,784
2,665
3,250
3,840
3,819
3,774
4,135
2,100
3,300
4,100
4,001
4,800
5,233
5,880
/
ai,oso
6,983
Ave.Use Ratio to Aye. Day Ave.
Services mgd
0.63
0.695
1.05
0.81
1.44
1.2
2.2
.97
.8
1.
1.
2.
1.
1.3
1.97
1.7
3.4
0.77
.99
,21
2.55
4.0
2.28
1.82
1.43
1.5
2.621
1.
3.
.38
.76
4.0
4.82
3.84
4.45
2.0
5.8
9.2
5.4
Max .Mo. Max. Day
2,0
1.51
1.9
3.8
2.7
2.1
1.9
1.7
1.7-Jul
1.1
Jul-
2.38
1.2
1.9-Jul
2.6
2.13
2.2
3.2
1.1
1.5
2.0
2.6
2.2
2.18
3.3
2.12
2.8
3.3
2.52
1.9
3.12
4.30
2.2
3.2
3.2
3.15
2.7
2.63
2.6
3.3
gpcd
230
145
214
143
155
203
400
134
210
171
282
247
221
157
220
190
370
84
300
126
256
150
180
176
160
117
256
203
180
284
150
312
219
250
103
175
266
228
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Town, State
Kennewick,Wn.
Butte, Mont.
Pocatello,Ida.
Boise, Idaho
Medford, Ore.
Yakima, Wn.
Cheyenne,Wyo.
Spokane,Wn.
APPENDIX
TABLE 1-2
(Continued)
Year
1960
1960
1960
1960
1960
1960
1960
1960
Pop.
27,000
27,877
28,634
34,482
34,500
42,000
48,000
181,608
Services
6,280
6,672
11,050
10,833
54,908
Ave. Use
mgd
5,1
7.0
13.7
9.2
6.85
10".. 4
68.2
14
Ratio to Ave, Day Ave.
Max.. Mo, Max. Day gpcd
1.6
1.9-Jul
2.6
2.5
1.8
2.6
2.0
2.82
190
186
243
183
266
164
217
164
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Town,
Ferndale, ;Wn.
Roberts Cr. W.D.
Oregon /
Winston /Dillard
W.D. Oregon
Lyndon, Wash.
Reedsport,/ Ore.
Elaine, Wash.
Mt . View-Edgewood
Wash.
Coquille, Ore.
Enumclaw,Wn.
Shelton, Wn.
King Co. W.D. #43
Wash .
Anacbrtes, Wn.
Centra lia, Wn.
Hoquiam, Wn.
Edmonds, Wn.
Mount lake . Terrace
, Wash.
Astoria, Ore.
Auburn, Wn.
King Co. W.D. #68
Wash.
Skagit Co. PUD #1,
Wash.
Coos Bay, Ore.
Bellevue, Wn.
Longview, Wn.
King Co.WiD.#20,
Wash.
Rehton, Wash.
Lakewood W.D. ,Wn
Bremerton, Wn.
Frot Lewis, Wn.
Alderwood Manor
W.D.,Wash.
Tacoma, Wash.
Seattle, Wn.
APPENDIX ij
TABLE 1-3
BASIC DATA FOR WATER CONSUMPTION STUDY FOR
'' CLIMATIC DESIGNATION 3
Year
1960
1960
1960
1960
1960
1960
1960
1960
1960
1960
1960
1960
1960
1960
1960
p
1960
1960
1960
ift
!O
1960
»
1960
1960
1960
1960
24,170
1960
i 1960
1960
1960
1960
1960
1960
Pop.
1,700
2,100
2,250
2,800
2,998
3,200
3,440
4,730
5,000
6,000
6,600
8,400
9,250
10,762
11,500
11,500
11,840
13,761
18,860
22,123
21,257
24,000
24,000
24,500
35,000
41,000
45,000
50,400
156,300
561,000
Services
650
1,260
750
2,104
2,260
2,008
4,000
3,600
3,150
3,201
5,388
7,375
4,977
7,775
6,468
11,234
11,052
44,378
153,957
Ave.Use Ratio to
mgd Max. Mo.
0.25
0.23 1.9
0.29 1.94
0.32
1.3 1.58
0.55
0.60
0.60
1.2
0.92
1.22 1.2
1.65
0.93
3.56 1.5
4.3
2.99
3.947 2.5
48.8
98.5
Ave. Day Ave.
Max. Day gpcd
2.8
1.61
2.71
3.0
3.0
1.3
1.4
3.08
5.34
2.3
1.7
2.54
3.42
7.05
2.57
5.1
2.29
2.69
147
108
129
114
448?
172
67
126
120
200
140
145
178
87
81
88
301
95(110)
63
193
141
(125)
81(99)
107
330
81
135(85)
150
78
160
134
-------
AWWA
No.
14
46
71
72
89
93
97
115
141
150
160
175
222
238
291
293
339
363
375
398
409
425
461
501
510
City or District
Alderwood Manor W.D.
Astoria
Bellevue (King Cty.
W.D. #68)
Bellingham
Boise
Bozeman
Bremerton
Caldwell
Cheyenne
Clerks ton
Coeur d'Alene
Coos Bay
Edmonds
Eugene
Grants Pass
Great Falls
Idaho Falls
Kalispell
Kennewick
Laramie
Lewiston
Longview
Medford
Mountlake Terrace
Nampa
State
Wash.
Ore.
Wash.
Wash.
Ida.
Mont.
Wash.
Ida.
Wyo.
Wash.
Ida.
Ore.
Wash.
Ore.
Ore.
Mont.
Ida.
Mont.
Wash.
Wyo.
Ida.
Wash.
Ore.
Wash.
Ida.
Pop.
Served
50,400
11,840
18,500
38,558
63,000
13,250
41,000
12,400
48,000
12,000
17,000
21,257
11,500
70,800
10,500
67,000
33,160
12,000
27,000
17,500
13,000
30,100
34,852
11,500
18,000
DATA FROM
"A SURVEY
Million Ave. Daily
Gal. Production
Produced
1,441
1,300
794
17,819
3,219
1,374
2,022
570
3,793
1,486
1,093
340
4,772
630
4,764
4,968
669
1,874
1,401
1,068
1,031
3,357
272
700
msd
3.947
3.561
.
48.820
3.764
5.539
1.561
10.392
4.071
2.993
0.931
13.073
1.726
13.052
13.610
1.832
5.134
3.838
2.926
2.824
9.197
.
1.917
APPENDIX
TABLE II
OF OPERATING DATA FOR WATER WORKS IN 1960"
AWWA 1964
Max. Day
mgd
10.000
5.470
7.600
74.000
23.000
12.000
13.360
2.600
20.840
26.000
5.200
34.560
6.000
38.000
22.300
6.000
13.500
10.300
10.000
9 4 200
22.340
2.000
Max.Hr.
mgd
20.000
9.000
21.500
39.590
40.000
58.000
52.000
37.700
26.400
25.000
36.800
No. of
Services
11,052
3,201
5,388
12,232
17,667
3,300
11,234
3,250
10,833
3,774
4,968
4,977
3,600
13,368
3,727
13,884
9,588
3,819
6,280
4,800
4,184
7,875
8,380
3,150
5,880
%
Metered
__ _
100
100
9
100
100
100
11
100
100
100
4
0
100
100
56
100
SPcd
78
301
266
284
135
126
217
239
141
81
185
164
195
410
153
190
219
225
94
264
107
gpcd
Other
Source
63
242
183
85
117
250
180
(270) 384
176
203
(99) 81
266
103
Max. Day
Ave . Day
2.5
1.5
1.5
3.2
2.4
1.7
2.0
1.7
--:-
2.6
3.5
2.9
1.6
3.3
2.6
2.7
3.4
3,2
2.4
Max Hr.
Ave. Day
5.1
3.9
3.8
4.4
4.0
2.8
5.1
8.5
4.0
Persons/
Services
4.56
3.70
3.44
3.15
3.57
4.02
3.65
3.82
4.45
3.18
3.42
4.27
3.20
5.28
2.82
4.82
3.45
3.15
4.30
3.65
3.11
3.83
4.16
3.65
3.06
-------
APPENDIX
TABLE II
(Continued)
AWWA
No.
560
561
582
584
596
601
605
613
624
625
634
639
650
675
690
699
719
774
799
1004
1008
1018
1029
1047
1048
1080
1084
1098
City or District
Olympia,
Olympic View W.D.
Pasco
Pendleton
Pocatello
Port Angeles
Portland
Puyallup
Renton
Rich land
Rock Springs
Roseburg
Salem
Seattle
Skagit Co. PUD #1
Spokane
Tacoma
Wena tehee
Wolf Creek Hwy. W.D.
Aloha
Anacortes
Baker
Beaverton
Bur ley
Burns
Colfax
Coquille
Dillon
State
Wash,
Wash.
Wash.
Ore.
Ida.
Wash.
Ore.
Wash.
Wash.
Wash.
Wyo.
Ore.
Ore.
Wash.
Wash.
Wash.
Wash.
Wash.
Ore.
Ore.
Wash.
Ore.
Ore.
Ida.
Ore.
Wash.
Ore.
Mont.
Pop.
Served
21,789
10,000
15,000
15,500
28,634
12,500
551,700
12,000
24,807
23,549
13,857
18,100
56,926
734,779
22,123
190,000
157,000
17,000
15,000
7,000
9,400
9,986
8,000
7,805
3,700
2,855
4,730
3,720
Million
Gal.
Produced
1,001
1,758
1,835
2,558
1,454
55,166
1,346
4,191
1,016
1,113
4,163
35,948
1,560
24,911
17,824
1,625
117
5,767
858
2,354
804
595
243
218
500
Ave. Daily
Production
7.500
4.816
5.027
7.008
3.983
151.139
2.400
3.049
11.405
98.488
4.273
68.249
48.832
4.452
0.320
15.800
2.349
6.451
2.202
1.630
0.664
0.597
1.369
Max . Day
mgd
,
14.500
12.000
17.400
9.000
190.000
.
7.500
34.100
4.000
7.500
27.700
264.000
10.000
156.000
79.000
11.487
4.000
0.750
21.000
5.570
.
2.300
1.870
1.183
1.800
2.800
Max.Hr.
mgd
16.000
40.000
12.000
50.850
10.000
47.000
665.280
240.000
102.000
8.570
3.700
No. of
Services
6,202
3,684
4,001
3,992
6,672
123,280
4,350
6,468
6,983
4,371
5,769
13,844
153,957
7,375
54,908
44,378
5,233
3,808
1,859
3,062
3,380
2,400
2,685
1,100
1,068
1,578
1,213
7.
Metered
100
100
100
100
100
100
100
100
100
100
100
100
gpcd
321
324
243
319
274
168
200
134
193
359
311
262
46
681
235
806
282
441
233
126
368
gpcd
Other
Source
312
150
272
180
330
228
225
185
134
164
160
250
256
560
233
Max. Day
Ave. Day
3.0
2.4
2.5
2.3
1.3
2.5
2.4
2.7
2.3
2.3
1.6
2.6
2.3
1.3
2.4
1.1
1.1
1.8
3.0
2.1
Max.Hr.
Ave . Day
- __
3.3
5.7
3.0
3.3
4.1
6.7
3.5
2.1
3.7
2.3
---
Persons/
Service
3.50
2.72
3.75
3.88
4.30
4.50
2.76
3.84
3,37
3.18
3.12
4.10
4.78
3.00
3.47
3.55
3.24
3494
3.76
3.06
2.95
3.34
2.91
3.36
2.67
3.00
3.08
-------
APPENDIX
TABLE II
(Continued)
AWHA
Ho.
1113
,1117
1120
1132
1D5
1150
1151
1156
1167
1209
1210
1211
1215
1216
1217
1221
1225
1245
1261
1262
1269
1270
1302
1307
1325
1335
1345
1355
1371
City or DistrtcC
East Wenatchee
Ellensburg
Enumclaw
Federal Way
Forest Grove
Glasgow
Glendive
Grangeville
Hamilton
Juneau
Kellogg
Ketch ikan
King Co. W. D. #43
King Co. W. D. #93
Kirkland
La Grande
Lake view
Livingston
McMicken Heights
McMinnville
Miles City
Milwaukie
Ontario
Orifino
Plains
Prineville
Rawlins
Riverton
Shelton
Total
Average
State
Wash.
Wash.
Wash.
Wash.
Ore.
Mont.
Mont.
Ida.
Mont.
Alask.
Ida.
Alask.
Wash.
Wash.
Wash.
Ore.
Ore.
Mont.
Wash.
Ore.
Mont.
Ore.
Ore.
Ida.
Mont.
Ore.
Wyo.
Wyo.
Wash.
2
Pop.
Served
9,200
9,000
5,000
5,200
7,000
7,000
7,043
3,300
3,800
7,313
8,000
6,922
6,600
8,400
7,650
9,196
3,850
8,250
4,856
7,600
9,665
9,099
5,000
2,500
1,000
3,800
8,968
8,300
6,000
,891,089
Million
Gal.
Produced
281
984
219
100
421
295
439
101
580
1,050
720
2,264
337
243
626
375
666
70
660
443
332
353
143
120
274
720
476
438
Ave. Daily
Production
0.769
2.695
0.600
1.153
1.202
0.276
1.589
2.876
1.972
6.202
0.923
0.664
1.715
1.027
1.824
1.808
1,213
0.909
0.967
0.391
0.328
0.751
1.972
1.304
1.200
Max. Day
mgd
~._.
5.970
1.800
1.000
2.900
2.000
3.800
1.750
3.900
3.000
7.300
4.360
3.000
5.000
4.000
2.500
1.070
4.000
1.500
Max.Hr.
njsd
«_
11.600
2.soa
4.500
6.000
2.000
10.000
6.900
4.500
3.750
1.440
---
No. of
Services
2,300
2,784
2,104
1,300
2,077
1,635
1,759
1,181
1,034
1,100
2,328
2,371
2,008
2,178
2,786
3,239
1,400
2,631
1,550
2;600
2,665
4,500
1,595
611
360
1,231
2,648
2,000
2,260
%
Metered EPcd
84
299
120
165
171
84
418
393
247
896
140
79
186
267
221
238
126
100
193
156
328
198
220
157
200
204
gpcd
Other Max. Day
Source Ave. Day
~«
2.2
3.0
2.4
3.2
6.3
1.4
1.5
1.2
190 2.5
2.9
2.7
225
3.3
97
203 2.6
2.7
105
2.0
1.3
2.4
Max.Hr.
Ave. Day
»
4.3
4.2
3.9
5.0
7.2
3.5
4.0
3.7
3.9
3.7
---
4.2
Persons/
Service
4.00
3.23
2.37
4.00
3.38
4.27
4.00
2.79
3.68
6.66
3.36
2.48
3.30
3.86
2.74
2.83
2.76
3.14
3.14
2.93
3.62
2.02
3.14
4.08
2.78
3.08
3.38
4.15
2.66
t
3.5 '
-------
APPENDIX
TABLE IJI
SUMMARY OF DATA FOR I960
(Metered Systems)
PNW AWWA REPORT, MARCH 1964
19
System
or
City
Portland
Gresham
Salem
*S5j93O
Eugene *
7O/800
Vancouver
Olympia
Longview
Lake wood
Water Dist.
(Tacoma)
Hoquiam
/q,76^
Auburn
/£/«/
Centralia
Mt. View-
Edge wood
^fittg
Tacoma
Bremerton
Seattle
734,773
King Co.
Water Dist'
#20^/-
#68/^
Average
Annual Temp
54.0
51.7
51.8
52.6
52.4
49.4
51.4
51.2
50. 3
50.2
(Used Kent,
Auburn Not
Given)
50. 3
49.5
[Belling ham
Airport)
51.2
51.0
53.2
s.
\0 53
$O 53
Average
Annual Precip
in.
44. 38
47.5
41.1
32.94
39.4
50.45
46.7
35. 2
70.31
40
50.74
34.75
35. 2
51.13
36.6
40 (Est.)
40 (Est.)
Avg. Western Ore. & Wash.
Avg. Annual
Per Cap. Deman
(gpcd)
118
158
186
168
123
133
81
81
87
95
123
67
160
85
134
63
107
116
RATIOS
1 Max Day to
Avg Day
N. A.
1.73
2. 13
2.61
3.09
2.46
2.54
7.05
N. A.
3.08
3.88
2.71
2.29
2.57
2.69
5.34
3.42
3il7
Max Hr to
Max Day
1.90
1.77
1.28
2.04
.1.44 .
1.41
2.52
3.0
1.92
ee
LLJ
*
fr-
ee
co
[ , i
t^J
CO
UJ
* 1959 Data
Sourcei
-------
APPENDIX
TABLE III
SUMMARY OF DATA FOR I960 (Cont1 d)
(Metered Systems)
20
System
or
City
Wenatchee
/7j&O(>
Pasco
Spokane
/9OjOOO
Colfax
2&S&
Moses Lake
Richland
Vera Irrigati
District #15
Ellensburg
Average
Annual Temp
°F.
50.4
53. 1
49.3
47. 5
48.6
54
on 50
(Spok
47. 1
Average
Annual Precip.
in.
7.99
6.5
18.69
19.66
8. 14
6.31
19
ane Data)
8.05
9,OOO Avg Eastern Washington
Kellogg
&jOOO
Moscow
/I)/&O
Weiser
Bonners
Ferry
2900
Caldwell
Emmett
3767
Everett
07,028
Port Angeles
J2.J&S3
Coeur dJAlei
46.5
48.0
50. 1
45. 5
51.8
50.0
Avg. Idaho
50.2
49. 3
e 47. 7
1
29.56
21.44
10.33
23.29
10.8
13.06
34. 15
22.94
26.43
Avg. Annual
Per Capita De-
mand (gpcd)
250
312
164
233
256
425
300
277
125
103
145
172
66
248
143
178
272
250
RATIOS
Max Day to
Avg Day
2.63
3. 15
2.82
3.73
3. 12
2.89
2. 18
3. 35
1.33
2. 52
2. 13
4.4
1.59
1. 50
2.25
2. 54
3:9
Max Hr to
Max Day
1.02
2.73
1.59
2. 04
1.85
1.82
1.82
1. 53
o
2
u>
*
UJ
£
UJ
«=»
«*
"
a
«
-------
APPENDIX
TABLE IV
WILLAMETTE RIVER DATA 21
J. E. Britton, 1964
Population gpcd
Eugene 92,500 183
Springfield (PP&L) 12,000 202
" UB 8,000 111
Junction City 1,600 288
Cottage Grove 5,000 200
Oakridge 4,000 375
Monroe 450 94
Albany 13,000 187
Corvallis 24,000 168
Dallas 7,000 212
Dundee 500 157
Independence 2,100 147
Newberg 5,500 129
Sublimity 400 132
Salem 78,600 161
Lebanon 6,000 180
Mill City 1,500 75
Stayton 2,500 295
Sweet Home 3,400 203
Amity 700 55
Carlton 1,000 84
Dayton 800 142
Eola Village 1,000 84
Lafayette 600 140
McMinnville 8,300 225
Sheridan 2,000 100
Willamina 1,000 260
Yamhill 1,200 217
Mt. Angel 1,500 123
Woodburn 4,000 116
Canby 2,200 185
Portland 386,000 180
Gresham 5,000 162
Tigard W.D. 3,000 96
Clackamas W.D. 9,000 83
Gladstone 4,000 100
Milwaukie 11,300 97
Lake Oswego 12,000 92
Troutdale 600 71
Richland 2,600 105
Estacada 1,200 225
Forest Grove 7,000 166
Hillsboro 18,500 104
Cornelius 1,400 121
Gaston 500 60
Aloha-Huber W.D. 3,500 63
46 Cities 757,950 151
-------
APPENDIX
TABLE V
FISCAL YEAR 1951-52 WATER CONSUMPTION ESTIMATE FOR OREGON
Warren C. Westgarth, 1953
Size
Ranee
Over
50,000
25,000-
50,000
10,000-
25,000
5,000-
2,500-
5,000
City
Portland
Eugene
Salem
Albany
Corvallis
Springfield
Hillsboro
Lebanon
McMinnville
Milwaukie
Oregon City
Dallas
Forest Grove
Gresham
Newberg
Sweet Home
West Linn
Population
1950
Census
373,628
35,879
43 , 140
10,115
16,207
10,807
5,142
5,873
6,635
5,253
7,682
4,793
4,343
3,049
3,946
3,603
2,945
% Metered
Total (Approx)
Customers Residential
148,521
14,450
13,375
3,246
4,498
3,348
4,710
1,942
2,250
1,550
2,903
1,900
1,580
1,181
1,803
1,135
1,100
100
100
100
95
100
5
100
25
98
100
30
100
99
100
100
100
30
Per Capita
Ave. Year
185
227
172
218
125
305
304
286
198
248
271
169
99
146
183
214
Consumption
Max Month
405
370
359
211
568
476
585
376
___
344
388
331
168
282
272
287
Max Month
Divided
by Ave Yr
1.78
2,15
1.65
1.69
1.87
1.57
2.04
1.90
- . _
1.39
1.43
1.96
1.70
1.93
1.49
1.34
N>
S3
-------
Size
Range
1,000-
2,500
500-
1,000
0-
500
10,000-
25,000
5,000-
10,000
2,500-
5,000
1,000-
2,500
500-
1,000
City
Canby
Carlton
Gladstone
Independence
Mill City
Mt. Angel
Sheridan
Woodburn
Creswell
Turner
Columbia City
Sublimity
Astoria
Coos Bay-
North Bend
Newport
Florence
Eastside
Gearhart
Population
1950
Census
1,671
1,081
2,434
1,987
1,792
1,315
1,922
2,395
662
610
405
367
12,331
12,322
3,241
1,026
890
568
Total
Customers
674
442
963
650
509
418
770
1,100
293
191
113
86
6,500
4,687
1,400
340
272
493
APPENDEX
TABLE V
(Continued)
% Metered
(Approx)
Residential
100
95
100
95
95
90
90
100
99
100
100
100
100
100
100
100
95
55
Per Capita
Ave. Year
112
107
679
156
160
110
106
126
66
134
57
80
210
164
144
48
469
134
Consumption
Max Month
258
190
1,030
294
253
218
203
307
103
237
117
114
289
190
206
49
655
324
Max Month
Divided
by Ave Yr
2.30
1.78
1;52
1.88
1.58
1.98
1.94
2.50
1.56
1.77
2.05
1.43
1.38
1.16
1.43
1.02
1040
2.42
-------
APPENDIX
TABLE V
(Continued)
Size
Range
10,000-
25,000
5,000-
10,000
1,000-
2,500
500-
1,000
Population
1950
City
SOUTH
Klamath Falls
Medford
Ashland
Grants Pass
Roseburg
Central Point
Myrtle Creek
Merrill
Census
15,875
17,305
7,739
8,116
8,390
1,667
1,781
835
Total
Customers
7,938
7,622
2,649
3,230
4,296
540
627
244
% Metered
(Approx)
Residential
100
4
100
100
100
98
68
Per Capita
Ave Year
252
428
276
171
248
129
1,570
114
Consumption
Max Month
470
645
587
334
450
248
1,770
211
Max Month
Divided
by Ave Yr
1.87
1.51
2013
1.96
1.82
1.92
1.13
1.85
CENTRAL and EASTERN
10,000-
25,000
5,000
10,000
2,500-
5,000
0-
500
Bend
Pendleton
Baker
La Grande
The Dalles
Ontario
Prineville
Redmond
Boardman
Wasco
11,409
12,218*
9,471
8,635
6,676
4,465
3,233
2,956
120
305
3,681
3,458
3,140
2,536
3,030
1,402
1,055
1,193
62
126
0
100
97
100
0
100
3
89
100
242
233
670
116
110
342
107
116
462
580
435
970
194
710
188
121
1.91
1.87
1.45
1.67
2.08
1076
1.04
* Special count by Secretary of State
fO
P-
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