53$EPARTMENTOFTHE)NTERIOR

53'EOLOGICAL3URVEY

4RENDSIN3TREAMmOWAND#OMPARISONS7ITH)NSTREAM

&LOWSINTHE,OWER0UYALLUP2IVER"ASIN7ASHINGTON

3CIENTIlC)NVESTIGATIONS2EPORTn

0REPAREDINCOOPERATIONWITHTHE

0UYALLUP4RIBEOF)NDIANS

View of the west face of Mount Rainier 

from the Puyallup River. (Photograph 

provided by Puyallup Tribe of Indians.)
Trends in Streamflow and Comparisons 

With Instream Flows in the Lower 

Puyallup River Basin, Washington

By Steve S. Sumioka

Prepared in cooperation with the

PUYALLUP TRIBE OF INDIANS

Scientific Investigations Report 2004-5016

U.S. Department of the Interior

U.S. Geological Survey
U.S. Geological Survey, Reston, Virginia: 2004

For sale by U.S. Geological Survey, Information Services

Box 25286, Denver Federal Center

Denver, CO 80225-0286

U.S. Department of the Interior

Gale A. Norton, Secretary

U.S. Geological Survey

Charles G. Groat, Director

For more information about the USGS and its products:

Telephone: 1-888-ASK-USGS

World Wide Web: http://www.usgs.gov/

Any use of trade, product, or firm names in this publication is for descriptive purposes only and does not imply 

endorsement by the U.S. Government.

Although this report is in the public domain, permission must be secured from the individual copyright owners to 

reproduce any copyrighted materials contained within this report.

Suggested citation:

Sumioka, S.S., 2004, Trends in streamflow and comparisons with instream flows in the Lower Puyallup River Basin, 

Washington: U.S. Geological Survey Scientific Investigations Report 2004–5016, 46 p.
iii

Contents

Abstract. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Purpose and Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Previous Studies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Well-Numbering System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Description of Study Area . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Trend Analysis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Hydrologic Trends . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Water Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Land Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Instream-Flow Analysis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

References Cited . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
iv

Figures

Figure 1. Map showing Locations of U.S. Geological Survey streamflow-gaging 

stations, National Weather Service precipitation gages, and wells used in 

analyses of streamflow trends and instream flow in the lower Puyallup

River Basin, Washington. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Figure 2. Diagram showing well-numbering system used in Washington. . . . . . . . . . . . . . . . . 5

Figure 3. Graph showing annual mean streamflow at gaging station Puyallup 

River at Puyallup (station 12101500), Washington, for the period 1915-2000 . . . . . . 7

Figure 4. Graphs showing October mean streamflow at gaging stations Puyallup 

River at Puyallup (station 12101500) and Puyallup River near Orting

(station 12093500) in the lower Puyallup River Basin, Washington, 

1980 through 2001 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Figure 5. Graphs showing ground-water levels in selected wells in the lower 

Puyallup River Basin, Washington, 1995 through 1997. . . . . . . . . . . . . . . . . . . . . . . . . 10

Figure 6. Graph showing instream-flow values at gaging station Puyallup 

River at Puyallup (12101500) in the lower Puyallup River Basin, Washington . . . . . 12

Figure 7. Graphs showing daily mean streamflow and instream flow at gaging 

station Puyallup River at Puyallup (station 12101500) in the lower 

Puyallup River Basin, Washington, 1991 and 1992 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Figure 8. Graphs showing daily minimum streamflow and instream flow at 

gaging station Puyallup River at Puyallup (station 12101500) in the 

lower Puyallup River Basin, Washington, 1991 and 1992. . . . . . . . . . . . . . . . . . . . . . . 14

Figure 9. Graphs showing unit-streamflow values and instream flow at gaging 

station Puyallup River at Puyallup (station 12101500) in the lower 

Puyallup River Basin, Washington, 1991 and 1992.. . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Figure 10. Graph showing relation between daily mean streamflow, unit values, 

and instream flow at gaging station Puyallup River at Puyallup (12101500) 

in the lower Puyallup River Basin, Washington. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Figure 11. Graph showing unit-streamflow values from gaging stations 

Puyallup River at Puyallup, Puyallup River near Orting, Lake Tapps 

Diversion, and White River Canal and precipitation recorded at the 

Puyallup Experimental Station in the Puyallup River Basin, 

October 26 through November 11, 1992 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
v

Tables

Table 1. Instream flows established for the Puyallup River Basin, Washington . . . . . . . . . . 4

Table 2. Kendall’s tau and p-values for streamflow records for a wet and a dry period 

for the Puyallup River and Clarks and Swan Creeks, lower Puyallup River 

Basin, Washington . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Table 3. Kendall's tau and p-values for October mean and annual mean 

streamflow records for the Puyallup River, Washington, 1980–2001. . . . . . . . . . . . . 9

Table 4. Kendall's tau and p-values for annual precipitation recorded at 

National Weather Service stations in and near the lower Puyallup 

River Basin, Washington . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Table 5. Kendall's tau and p-values for periodic ground-water-level measurements 

from wells in the lower Puyallup River Basin, Washington, 1995 through 1997. . . . 11

Table 6. Comparison of daily mean, daily minimum, and unit-streamflow values 

with instream-flow values for gaging station Puyallup River at 

Puyallup (12101500), Washington, 1991 and 1992 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Table 7. Daily mean streamflow and instream–flow values for gaging station 

Puyallup River at Puyallup (12101500) for 1991 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Table 8. Daily mean streamflow and instream-flow values for gaging station 

Puyallup River at Puyallup (12101500) for 1992 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Table 9. Unit-streamflow and instream-flow values for gaging station Puyallup 

River at Puyallup (12101500) from October 26 through November 10, 1992 . . . . . . . 27
vi

Conversion Factors and Vertical Datum

Temperature in degrees Fahrenheit (oF) may be converted to degrees Celsius (oC) as follows:

oC = (oF-32)/1.8.

Vertical coordinate information is referenced to NGVD29; horizontal coordinate information is 

referenced to the North American Datum of 1983 (NAD 83).

Altitude, as used in this report, refers to distance above the vertical datum.

Multiply By To obtain

acre 4,047 square meter

 0.4047 hectare

0.4047 square hectometer 

0.004047 square kilometer

cubic foot (ft3) 28.32 cubic decimeter 

 0.02832 cubic meter 

cubic foot per second (ft3/s) 0.02832 cubic meter per second

inch (in.) 2.54 centimeter

25.4 millimeter

foot (ft) 0.3048 meter

foot per mile (ft/mi) 0.1894 meter per kilometer

mile (mi) 1.609 kilometer

section (640 acres or 1 square mile) 259.0 square hectometer 

square mile (mi2) 259.0 hectare

 2.590 square kilometer 

million gallons per day (Mgal/d) 0.04381 cubic meter per second
Trends in Streamflow and Comparisons With Instream 

Flows in the Lower Puyallup River Basin, Washington

By Steve S. Sumioka

Abstract

The Puyallup Tribe of Indians is interested in better 

understanding the water resources of the lower Puyallup River 

Basin in order to ensure sufficient water to meet Tribal and 

hatchery needs and make future water-resource decisions. The 

U.S. Geological Survey, in cooperation with the Puyallup 

Tribe, conducted a study to identify trends in streamflow in the 

lower Puyallup River Basin and to compare streamflows in the 

Puyallup River with regulatory minimum instream flows. 

Daily mean streamflow, monthly mean streamflow for 

October, and annual mean streamflow records from 1980 

through 2001 for two gaging stations on the lower Puyallup 

River and one each on Clarks Creek and Swan Creek in the 

lower Puyallup River Basin were analyzed for temporal trends. 

Daily mean streamflow records were divided into data sets for 

the wet period (November through June) and the dry period 

(July through October) for analysis. Annual precipitation 

records from three National Weather Service stations and 

ground-water-level records from five wells in the lower 

Puyallup River Basin were analyzed to determine possible 

relations with streamflow. Daily mean streamflow, daily 

minimum streamflow, and unit-streamflow records for the 

Puyallup River for 1991 and 1992 were evaluated for the 

instream-flow analysis.

Significant temporal trends were not identified in daily 

mean streamflow records from the Puyallup River, Clarks 

Creek, or Swan Creek for the period of analysis. Trend analysis 

of monthly mean streamflow records for October at two gaging 

stations on the Puyallup River also indicated no significant 

trends for the period of analysis. Temporal trends were not 

evident in precipitation data from weather stations in the basin. 

A trend of decreasing depth to ground water with time (1995 

through 1997) was identified in one well (20N/04E-34G01). 

This well is drilled to about 550 feet below land surface, and 

variations in water levels at this depth likely do not affect 

streamflow in the Puyallup River. Data limitations prevented 

the evaluation of possible correlations between streamflow in 

the Puyallup River and water use and land use in the study 

basin.

Daily mean, daily minimum, and unit-streamflow values 

were evaluated to determine how each measure of streamflow 

compared with instream-flow values. The occurrence of 

excursions (streamflow below the instream-flow value) was 

greatest when unit-streamflow values were compared with 

instream-flow values. The use of daily mean streamflow 

records may underestimate the occurrence of excursions under 

certain streamflow conditions.

The unit-streamflow hydrograph for the Puyallup River at 

Puyallup exhibits a distinct, regular pattern. The hydrograph 

closely mimics the hydrograph at Lake Tapps Diversion, on the 

White River, a tributary of the Puyallup River, which is the 

outflow from a power plant, suggesting that the power-plant 

outflow affects streamflow in the Puyallup River. Streamflow 

entering Lake Tapps through the White River Canal does not 

exhibit the same pattern as the Puyallup River or diversion. The 

influence of the White River Canal on streamflow in the 

Puyallup River appears to be obscured by operation of the Lake 

Tapps Diversion.
2 Trends In Streamflow and Comparisons with Instream Flows in the Lower Puyallup River Basin, Washington

Introduction

The Puyallup Indian Reservation covers about 28 mi2

(square miles) along the lower reaches of the Puyallup River, 

in Pierce County, Washington (fig. 1). Historically, much of 

the land within the reservation boundary was the delta of the 

river, but now, the lower reaches of the Puyallup River are 

channalized within dikes and much of the flood plain has been 

developed into heavy industrial, commercial, and agricultural 

areas, including the Port of Tacoma. Much of this development 

is within the boundary of the reservation. At the present time, 

little, if any, water from the Puyallup River is used for 

domestic supply. Some water is pumped from the river for 

agricultural irrigation, but no records are kept of the amounts 

pumped. The Puyallup River serves as a passageway for 

salmon and steelhead trout to their spawning areas farther 

upstream.

The Puyallup Tribe of Indians is interested in better 

understanding the water resources of the Puyallup River Basin, 

to ensure there is sufficient water to meet the needs of the 

reservation. Water-related needs of the Tribe include 

protecting the health and welfare of Tribal members and 

preserving and enhancing the Tribe’s fishery. Understanding 

the water resources of the Puyallup River Basin also will 

provide insight into the management of water, for both 

economic development purposes and regulatory minimum 

instream flows for fish. The Tribe also needs such an 

understanding to make future water-resource decisions and to 

support negotiations with Federal, State, and local 

governments concerning their adoption of standards and plans 

required by the Puyallup Settlement Act and its implementing 

agreement for cross-boundary waters. The Tribe decided that 

assessing trends in streamflow in the Puyallup River and other 

streams in the lower Puyallup Basin over the past 10 to 20 

years and determining possible reasons for the trends would be 

most useful to meet their needs. In addition, the Tribe wanted 

to compare flow in the Puyallup River with regulatory 

minimum instream flows for the river, established in the 

Washington Administrative Code (Chapter 173-510-030, 

WAC, accessed January 20, 2003 at URL 

http://www.leg.wa.gov/wac/).

The U.S. Geological Survey (USGS), in cooperation with 

the Puyallup Tribe of Indians, assessed trends in daily mean 

streamflow, monthly mean streamflow for October, and annual 

mean streamflow at four streamflow-gaging stations in the 

lower basin for the period 1980 through 2001. They also 

assessed trends in precipitation, ground-water levels, land use, 

and water use for possible association with streamflow trends. 

In addition, daily mean, daily minimum, and unit-streamflow 

records for the Puyallup River for 1991 and 1992 were 

compared with instream flow to determine the number of times 

streamflow fell below instream values and for how long. 

The Washington Department of Ecology (WDOE) 

established minimum water flows or water levels for streams, 

lakes, or other public waters (instream flows) "for the purposes 

of protecting fish, game, birds or other wildlife resources, or 

recreational or aesthetic values of said public waters" (Chapter 

90.010, Revised Code of Washington, accessed January 20, 

2003, at URL http://www.leg.wa.gov/rcw/index.cfm).

The amount of water used for an instream-flow value is 

determined by considering the hydrology of the stream and the 

normal variations in flow over the course of the year. Thus, the 

instream flow of a river or stream may vary with time. In most 

cases, the WDOE and the Washington Department of Fish and 

Wildlife use the Instream Flow Incremental Methodology 

(IFIM) to determine what instream flows should be 

(Washington Department of Ecology, 2001). IFIM is a process 

that involves the use of computer models and other data to 

evaluate the amount of fish habitat at different flow levels in a 

river or stream (Bovee and others, 1998).

Instream-flow requirements have been established for the 

lower Puyallup River at river mile 6.6, the location of USGS 

gaging station 12101500 (Puyallup River at Puyallup). 

Instream flows also have been established for the Puyallup 

River near Alderton, about 3 mi (miles) east of Puyallup, and 

for the Carbon River near its confluence with the Puyallup 

River, about 11 mi upstream of station 12101500. Instream 

flows for the Puyallup River at Puyallup range in magnitude 

from 1,000 ft3/s (cubic feet per second) for part of September, 

all of October, and part of November to 2,000 ft3/s for all of 

May and June and part of July (table 1).
Introduction 3

-UD-OUNTAIN

,AKE

05'%43/5.$

#R

EEK

6OIGHT

#REEK

UYA

L

L

U

P

2IVER

342%!-&,/7
'!').'34!4)/.!.$.5-"%2.!4)/.!,7%!4(%23%26)#%02%#)0)4!4)/.'!'%7%,,!.$.5-"%2



          +),/-%4%23

     -),%3



.%
"

-UD-OUNTAIN$AM



7!3().'4/.

&IGURELOCATION

gg

g

g



g  g g g g g g

4



.

4



.

4



.

4



.

4



.

2% 2% 2% 2% 2% 2%

+).' #/5.49

+).'

#/5.49



0)%2#%



 #/5.49

0)%2#% #/5.49

Figure 1. Map showing Locations of U.S. Geological Survey streamflow-gaging stations, National Weather Service precipitation gages, and wells used in analyses of 

streamflow trends and instream flow in the lower Puyallup River Basin, Washington. 
4 Trends In Streamflow and Comparisons with Instream Flows in the Lower Puyallup River Basin, Washington

Purpose and Scope

This report presents the results of trend analyses of 

streamflow and the comparison of streamflow with regulatory 

minimum instream flow in the lower Puyallup River Basin. 

The trend analyses include assessing trends in streamflow at 

the Puyallup River at Puyallup (station 12101500), the 

Puyallup River near Orting (station 12093500), Clarks Creek 

at Tacoma Road near Puyallup (station 12102075), and Swan 

Creek at 80th Street East near Tacoma (station 12102190), and 

how trends in streamflow, if any, are related to any trends in 

precipitation and ground-water levels in the lower Puyallup 

River Basin. The available data did not allow estimating the 

effect of changes in water use and land use in the lower basin 

on streamflow. The instream-flow analysis included assessing 

the fraction of time streamflow in the Puyallup River at 

Puyallup does not meet instream-flow values.

The analysis of trends used streamflow records from 

January 1980 through September 2001 for the two Puyallup 

River gages, from March 1995 through September 2001 for 

Clarks Creek, and from October 1989 through April 2001 for 

Swan Creek. Precipitation records for three weather stations 

were obtained from the National Climatic Data Center, and 

ground-water levels were obtained from USGS databases. 

Water-use data compiled by the USGS in the State since 1975 

and published at 5-year intervals were used, to the extent 

possible, to investigate temporal trends in water use.

Instream-flow assessments were made using daily mean, 

daily minimum, and unit (15-minute interval) streamflow 

values from station 12101500, Puyallup River at Puyallup. 

Selected unit-streamflow values from the Lake Tapps 

Diversion at Dieringer, Washington, (station 12101100) were 

used to assess the effects of releases from a power-generating 

dam on streamflow in the Puyallup River. Instream-flow 

assessments using unit values were conducted for calendar 

years 1991 and 1992, which represent average-flow and lowflow years, respectively.

Previous Studies

Konrad and Booth (2002) conducted hydrologic trend 

analyses on small lowland streams associated with urban 

development in the Puget Sound Basin. (The Puyallup River 

was not included in their study.) Several measures of 

streamflow were analyzed for trends, including annual mean, 

the fraction of time annual mean streamflow was exceeded, the 

annual 7-day low flow, and annual maximum streamflow. The 

results were mixed. Mean streamflow increased over time in 

two streams and decreased in one stream. The time annual 

mean streamflow was exceeded decreased over time in two 

streams. The annual, 7-day low flow increased over time in 

three streams but decreased in three others. Annual maximum 

streamflow increased over time in four streams. 

A study by Mastin (1998) included trend analysis of flood 

data from South Prairie Creek, a tributary of the Carbon River. 

Analyzing annual peak flows, Mastin found no statistically 

significant trends in the peak-flow data. 

Jones and others (1999) presented data on ground-water 

levels in the Puyallup River Basin, including five wells near 

the streams used in this study. Trends in ground-water levels 

were not readily apparent in those wells.

 Kresch and Prych (1989) compiled streamflow statistics 

for streams on the Puyallup Indian Reservation, including 

Clarks and Swan Creeks. Their study presented values for lowand high-flow frequencies, mean monthly flows, mean annual 

flows, flow duration, and peak-flow frequencies.

Table 1. Instream flows established for the Puyallup River Basin, 

Washington 

[Chapter 173-510 in the Washington Administrative Code, 1988, accessed 

January 22, 2003 at URL http://www.leg.wa.gov/wac/)]

Month Day

Streamflow, in cubic feet per second

Puyallup River 

Carbon River at Puyallup 

(12101500)

at Alderton 

(12096500)

January 1 1,400 700 600

15 1,400 700 550

February 1 1,400 750 550

15 1,500 800 550

March 1 1,600 800 550

15 1,700 850 550

April 1 1,800 900 600

15 1,900 950 700

May 1 2,000 950 900

15 2,000 1,000 900

June 1 2,000 1,050 600

15 2,000 1,050 500

July 1 2,000 1,050 450

15 1,750 1,050 400

August 1 1,500 900 350

15 1,300 800 350

September 1 1,150 600 350

15 1,000 500 350

October 1 1,000 500 350

15 1,000 500 550

November 1 1,000 600 550

15 1,100 700 600

December 1 1,200 700 700

15 1,300 700 700
Description of Study Area 5

Well-Numbering System

The USGS assigns numbers to wells in Washington that 

identify their location in a township, range, and section. Well 

number 20N/04E-36H02 indicates successively, the 

township (T. 20 N) and the range (R. 04 E) north and east of 

the Willamette Base Line and Meridian (fig. 2). The first 

number following the hyphen indicates the section (36) 

within the township, and the letter (H) following the section 

number gives the 40-acre subdivision of the section. The 

number (02) following the letter is the sequence number of 

the well within the 40-acre subdivision. This number 

indicates that the well was the second one inventoried by 

USGS personnel in that 40-acre subdivision.

Description of Study Area

The Puyallup River originates from the Puyallup glacier 

of Mount Rainier, in the Cascade Range, and empties into 

Puget Sound at Commencement Bay. The study area consists 

primarily of the flood plain of the lower Puyallup River 

(fig. 1), where altitudes range from 0 to about 300 ft (feet) 

above NGVD 29 at streamflow-gaging station 12093500 

(Puyallup River near Orting). Uplands bordering the flood 

plain, where Clarks and Swan Creeks originate, reach 

altitudes of about 500 ft above NGVD 29. In general, the 

lower Puyallup River Basin can be characterized as having a 

relatively flat flood plain, ranging in width from about 1 to 3 

mi, with a gradient of about 8 ft/mi (feet per mile).

The Puyallup River has two major tributaries, the White 

and Carbon Rivers (fig. 1). The White River enters the 

Puyallup River near the city of Puyallup and the Carbon 

River enters about 18 river miles from the mouth of the 

Puyallup, between Puyallup and Orting. Mud Mountain Dam, 

at about river mile 28 on the White River, affects flow in the 

Puyallup River, and water is removed from the White River 

at about river mile 24 and stored in Lake Tapps for power 

generation, then returned to the White River at about river 

mile 4.

Most of the land within the boundary of the reservation, 

excluding the tide flats area, is classified as low- and highdensity urban (44 percent), grass and other natural cover (25 

percent), and agricultural (19 percent) (Jones and others, 

1999).

The lower Puyallup River Basin has a temperate marine 

climate, with warm, dry summers and cool, wet winters. The 

mean annual temperature is about 52oF (degrees Fahrenheit). 

The warmest month is July, with an average temperature of 

about 64oF; the coolest month is January, with an average 

temperature of about 39oF (Western Regional Climate 

Center, 2003).

The long-term (1931-95) average annual precipitation at 

the Washington State University Experimental Station in 

Puyallup is 39.9 in., about 70 percent falling during the 

months of October through March (Western Regional 

Climate Center, 2003). Snow occasionally falls in the area, 

but it soon melts.

Data

The analyses of trends in streamflow included data on 

streamflow, precipitation, ground-water levels, water use, 

and land use. The streamflow data are from four USGSoperated gaging stations in the lower Puyallup Basin: 

Puyallup River near Orting (station 12093500), Puyallup 

River at Puyallup (station 12101500), Clarks Creek at 

Tacoma Road, near Puyallup (station 12102075), and Swan 

Creek at 80th Street East (station 12102190), near Tacoma.

.

.







.

.







 %     7 %

    % 7  % 7

7ILLAMETTE-ERIDIAN

7ILLAMETTE"ASE,INE

3%#4)/.

$ # " !

% & '(

- , + *

.012

2

%

4



.

     

 

 

 

 

     

7!3().'4/.

3ELECTED4OWNSHIPAND2ANGE

.%
(

Figure 2. Diagram showing Well-numbering 

system used in Washington.
6 Trends In Streamflow and Comparisons with Instream Flows in the Lower Puyallup River Basin, Washington

Station 12093500 is located 600 ft downstream from the 

highway bridge crossing the river, about 4 mi south of Orting 

(fig. 1). It is equipped with a float-activated electronic datalogger (EDL) recording river stage at 15-minute intervals in a 

3-ft-diameter corrugated metal pipe. The drainage area of the 

Puyallup River at this point is 172 mi2. 

Station 12101500 is located about 0.8 mi upstream from 

the confluence with Clarks Creek. It is equipped with a floatactivated EDL recording river stage at 15-minute intervals in a 

4×4-ft concrete well. River-stage data are sent to the USGS 

office in Tacoma by satellite telemetry. The drainage area of 

the Puyallup River at this point is 948 mi2. 

Station 12102075 is located at a private bridge at the end 

of Tacoma Road, 1.0 mi northwest of Puyallup. It is equipped 

with a float-activated EDL recording river stage at 15-minute 

intervals in an 18-in.-diameter corrugated metal pipe. The 

drainage area of Clarks Creek at this point is 13.0 mi2.

Station 12102190 is located downstream from the 80th

Street East highway bridge crossing Swan Creek, 5.1 miles 

south-southwest of Tacoma. It is equipped with a floatactivated EDL recording river stage at 15-minute intervals in a 

4-in.-diameter steel pipe. The drainage area of Swan Creek at 

this point is 2.35 mi2.

The streamflow data used for the trend analysis included 

daily mean streamflows, mean streamflows for each October 

in the period of record—typically a month with low 

streamflow, and annual mean streamflows. A streamflowgaging station records gage height (river stage) every 15 

minutes, and the gage height is applied to a stage-discharge 

curve or rating table to compute streamflow. The stagedischarge curve is constructed by plotting individual 

instantaneous discharge measurements from the station with 

corresponding gage heights. From this curve, a rating table is 

prepared, from which the streamflow for any gage height 

within the range of measurements can be obtained. 

Daily mean streamflow is the arithmetic mean of 

streamflow for a specified day. Daily mean streamflows for the 

period of record for gaging stations in Washington can be 

viewed and downloaded from the USGS Web site 

http://wa.water.usgs.gov/data/realtime/historical.html. 

Monthly mean streamflow for October is the arithmetic mean 

of daily mean streamflow for each October, computed for each 

year of the period of record. Annual mean streamflow is the 

arithmetic mean of daily mean streamflow values computed 

for each year, for this study from 1980 through 2001 

(tables 7 and 8, at back of report).

Annual precipitation records are from National Weather 

Service stations located at the Puyallup Experimental Station, 

McMillin Reservoir, and Tacoma (Tacoma 1) (fig. 1). 

Precipitation records were obtained from a National Climatic 

Data Center data disk (Hydrosphere Data Products, 2002). 

Ground-water-level data are from the USGS GroundWater Site Inventory (GWSI) database. Water levels were 

measured periodically in the wells selected for this study. The 

periods of record for the wells range from 1995 through 1997 

to 1938 through 1997, and those portions of the records 

corresponding to selected streamflow records were in the 

analysis.

Water-use data, compiled and published by the USGS 

every 5 years, are from the USGS Web site 

http://wa.water.usgs.gov/data/wuse/index.htm. The land-use 

data were derived from aerial photographs taken in the 1970s 

and from LANDSAT data collected in 1992.

The analysis of instream flow included daily mean and 

daily minimum streamflows and unit-streamflow values for 

station 12101500. Daily minimum streamflows were 

computed by applying the lowest gage height recorded for 

each day to the stage-discharge curve or rating table. Unitstreamflow values were computed from gage heights that, for 

station 12101500, were recorded at 15-minute intervals. 

Because of the large number of gage-height records generated, 

unit-value and daily minimum streamflow data are stored for a 

limited amount of time. For station 12101500, the earliest unitvalue record is November 19, 1987.

To keep data-management tasks at a reasonable level, 

only 2 years of records—1991 and 1992—were used for the 

unit-values analysis in this study. These 2 years were selected 

on the basis of the long-term mean annual streamflow for 

station 12101500. The mean annual streamflow for this station 

for the period of record, calendar years 1915-2001, is 3,320 

ft3/s. The 2 years selected represent an average streamflow 

year (1991) and a year when streamflow was below average 

(1992). The annual mean streamflow for 1991 was 3,535 ft3/s; 

the annual mean streamflow for 1992 was 2,330 ft3/s (fig. 3).

Unit-streamflow values for October 26-November 10, 

1992, for stations 12101500 and 12093500 and for Lake Tapps 

Diversion at Dieringer (12101100) and White River Canal at 

Buckley (12099000) were used to determine the origin of the 

distinct flow pattern at station 12101500. Station 12101100 is 

equipped with a float-activated data-collection platform and an 

EDL. River-stage data are sent to the USGS in Tacoma by 

satellite telemetry. Station 12099000 is equipped with a floatactivated data-collection platform and an EDL.
Trend Analysis 7

Trend Analysis

The analysis of trends in streamflow in the lower 

Puyallup River Basin involved identifying changes in 

streamflow over time and relating them to possible changes 

in precipitation, ground-water levels, water use, and land use 

over time. To represent seasonal differences, daily mean 

streamflow for stations 12101500 and 12093500 on the 

Puyallup River and for 12102075 on Clarks and 12102190 on 

Swan Creeks were separated into a dry period (July 1 through 

October 31) and a wet period (November 1 through June 30) 

on the basis of streamflow differences. In addition, mean 

monthly streamflows for October, representing low flow, 

were computed for the two Puyallup River stations and 

assessed for trends. Mean monthly streamflows for October 

also were computed for the Clarks and Swan Creek records, 

but the resulting data sets were not long enough for trend 

analysis (six values for the Clarks Creek record and nine 

values for Swan Creek). 

Temporal trends in streamflow data were assessed using 

Kendall’s tau correlation coefficient (Helsel and Hirsch, 

1993). Values of Kendall’s tau may range from +1 to -1. A 

value of +1 indicates continuous increase in streamflow with 

time and a value of -1 indicates continuous decrease in 

streamflow with time. Values of tau reflect the relative 

strength of the monotonic association between streamflow 

and time. Kendall’s tau is not an effective test for detecting 

trends that change direction during the period being 

investigated. 

The statistical significance of trends was evaluated in 

terms of the probability (p) that observed trends in 

streamflow occurred by chance. A p-value of 0.05 indicates a 

95-percent probability that an observed streamflow trend is 

not the result of chance occurrence. Streamflow trends with 

p-values of 0.05 or less are considered significant; 

streamflow trends with p-values greater than 0.05 are not 

considered significant.

Hydrologic Trends

No statistically significant temporal trends were 

identified in daily mean streamflow records from the 

Puyallup River gages (stations 12101500 and 12093500) and 

the gaging stations on Clarks (station 12102075) and Swan 

Creeks (station 12102190) for the period of analysis. For the 

wet period, Kendall’s tau values ranged from –0.18 to 0.07 

and p-values ranged from 0.14 to 0.86; for the dry period, 

they ranged from –0.05 to 0.14 and 0.45 to 0.88, respectively, 

(table 2). Kendall’s tau for daily mean flows on Clarks Creek 

for the wet period was the greatest in magnitude (–0.18), 

indicating a slight downward trend, but the decrease in 

streamflow was not statistically significant (p-value of 0.14).

                 















342%!-&,/7).#5")#&%%40%23%#/.$





-%!.

!..5!,FTS

059!,,502)6%2!4059!,,50	

Figure 3. Graph showing Annual mean streamflow at gaging station Puyallup River at Puyallup (station 12101500), Washington, for the 

period 1915-2000.
8 Trends In Streamflow and Comparisons with Instream Flows in the Lower Puyallup River Basin, Washington

Table 2. Kendall’s tau and p-values for streamflow records for a wet and a dry period for the Puyallup River and Clarks and Swan Creeks, lower Puyallup 

River Basin, Washington

Station No. Station name

 Period of record 

for analysis

(calendar year)

Wet period

(November–June)

Dry period

(July–October)

Kendall's 

tau p-value Kendall's tau p-value

12101500 Puyallup River at Puyallup July 1980 - June 2001 0.02 0.86 0.02 0.87

12093500 Puyallup River near Orting July 1980 - June 2001 .07 .44 -.05 .59

12102075 Clarks Creek at Tacoma Road March 1995 - September 2001 -.18 .14 .03 .88

12102190 Swan Creek at 80th Street East, Tacoma October 1989 - April 2001 -.06 .68 .14 .45

Trend analysis of monthly mean streamflows for 

October at the two stations on the Puyallup River (fig. 4) 

indicates no significant trends for the period of analysis. 

The Kendall’s tau and p-value for station 12101500 were 0.25 

and 0.12, respectively, and for station 12093500, 0.11 and 

0.49, respectively (table 3). Trend analysis of annual mean 

streamflows at the two Puyallup River stations also showed 

no statistically significant trends (table 3).

Precipitation records corresponding as closely as possible 

to the period of analysis of streamflow records were examined 

for temporal trends. No statistically significant trends in 

precipitation were found (table 4).

The analysis of ground-water-level data showed a trend of 

rising ground-water levels with time (1995 through 1997) in 

well 20N/04E-34G01 (table 5 and fig. 5). This well is drilled 

to about 550 ft below land surface, and variations in water 

levels at this depth probably do not affect streamflow in the 

Puyallup River. Statistically significant trends were not 

identified in ground-water-level records (1995 through 1997) 

for the other wells in the study area. 

Water Use

Local and State agencies have been collecting water-use 

data in the study area since 1965. Over the course of this 

period, categories of water use and reporting units (drainage 

basin, county, or hydrologic unit) have changed. Since 1985, 

data have been reported by hydrologic unit. The Puyallup 

River and its tributaries, including the White and Carbon 

Rivers, and the Puyallup Indian Reservation are included in 

one hydrologic unit.

In 1985, total water use for the hydrologic unit was 

estimated to be about 36 Mgal/d (million gallons per day) 

(http://wa.water.usgs.gov/data/wuse/main.huc8.85.txt). This 

estimate includes public and self-supplied domestic, industrial, 

and irrigation uses. In 2000, the estimated water use was about 

42 Mgal/d (R.C. Lane, U.S. Geological Survey, written 

commun., 2003). However, these estimates cannot be related 

to streamflow in the Puyallup River, because much of the 

water used in the hydrologic unit comes from outside the 

Puyallup River Basin. This water is provided by the city of 

Tacoma from the Green River. The amount of water provided 

is not quantified, so it is not possible to determine what 

proportion of water used in the Puyallup River Basin originates 

from the Green River and what is supplied by the Puyallup 

River and its tributaries (R.C. Lane, U.S. Geological Survey, 

written commun., 2003).

Land Use

Two sets of land-use data were evaluated for use in 

assessing a relation between changing land use and streamflow 

trends in the Puyallup River Basin, one set derived from aerial 

photographs taken in the 1970s and the other from LANDSAT 

data collected in 1992. The two data sets use different land-use 

categories and are at different resolutions, therefore they could 

not be used to relate apparent changes in land use to 

streamflow. For example, comparison of the two data sets 

indicates a decrease in combined urban and suburban land use 

in the study area between 1970 and 1992, from about 16 to 

about 13 mi2. However, this trend is unlikely, because 

population growth and an increase in associated urban and 

suburban development have been documented in the study 

area. The trend of decreasing urban and suburban land use is 

more likely the result of unquantifiable differences in methods 

used to select land-use categories and differences in resolution 

between the two data sets.
Trend Analysis 9























 059!,,502)6%2!4059!,,50	

059!,,502)6%2.%!2/24).'	

#!,%.$!29%!23

           

342%!-&,/7).#5")#&%%40%23%#/.$

Figure 4. Graphs showing October mean streamflow at gaging stations Puyallup River at Puyallup (station 12101500) and Puyallup River near

Orting (station 12093500) in the lower Puyallup River Basin, Washington, 1980 through 2001. 

Table 3. Kendall's tau and p-values for October mean and annual mean streamflow records for the Puyallup River, Washington, 1980–2001

Station No. Station name Period of record for analysis

(calendar year)

October mean Annual mean

Kendall's tau p-value Kendall's tau p-value

12101500 Puyallup River at Puyallup 1980-2001 0.25 0.12 0.03 0.87

12093500 Puyallup River near Orting 1980-2001 .11 .49 .03 .87
10 Trends In Streamflow and Comparisons with Instream Flows in the Lower Puyallup River Basin, Washington

.%
%

.%
'

.%
"

































7!4%2,%6%,).&%%4"%,/7,!.$352&!#%

* * ! 3 / .$ * & -! -* * ! 3 / .$ * & -! -

  

Figure 5. Graphs showing Ground-water levels in selected wells in the lower Puyallup River Basin, Washington, 1995 through 1997.
Instream-Flow Analysis 11

Instream-Flow Analysis

The instream-flow analysis involved identifying daily 

mean, daily minimum, and unit-streamflow values that fell 

below regulatory minimum instream flows and the fraction of 

time that streamflow is below instream flow. (A streamflow 

value that falls below the instream flow is called an excursion.) 

The analysis used streamflow records for gaging station 

12101500, Puyallup River at Puyallup, in the analysis because 

this station is most representative of conditions in the part of the 

lower Puyallup River within the reservation. 

Instream flows are specifically set for the 1st and the 15th 

day of every month. Instream flows for non-specified days may 

be estimated visually from a plot of the set values (fig. 6) or 

determined by linear interpolation between the set values 

(Thomas Culhane, Washington Department of Ecology, oral 

commun., 2003), which was the method used for this study. 

Comparisons of unit-streamflow values (15-minute intervals) 

and instream flows are based on the use of a single instreamflow value for each day of comparison. Instream-flow values 

used in this study do not reflect variations resulting from linear 

interpolation within a given day (24-hour period). 

Table 4. Kendall's tau and p-values for annual precipitation recorded at 

National Weather Service stations in and near the lower Puyallup River 

Basin, Washington

Station name

Period of 

record for 

analysis 

(calendar 

year)

Kendall's 

tau p-value

Puyallup Experimental 

Station

1980-1994 -0.21 0.32

McMillin Reservoir 1980-2000 .06 .72

Tacoma 1 1982-2001 .09 .69

Table 5. Kendall's tau and p-values for periodic ground-water-level 

measurements from wells in the lower Puyallup River Basin, Washington, 

1995 through 1997

Well No.

Number of 

water-level 

measurements

Kendall's 

tau p-value

20N/03E-14B01 13 0.33 0.11

20N/04E-34G01 10 .64 .01

20N/04E-35E01 12 .54 .13

20N/04E-36H02 13 .28 .18

20N/04E-36H04 12 .20 .39

.%
(

.%
(

* * ! 3 / . $ * & -! -* * ! 3 / . $ * & -! -

  



























7!4%2,%6%,).&%%4"%,/7,!.$352&!#%

Figure 5.—Continued.
12 Trends In Streamflow and Comparisons with Instream Flows in the Lower Puyallup River Basin, Washington

For 1991, an average streamflow year, 19 of 365 daily 

mean streamflow values (about 5 percent) fell below the 

instream-flow value for that day (table 6, table 7, and fig. 7), 

76 of 365 daily minimum streamflow values (about 21 percent) 

fell below the instream-flow value (table 6 and fig. 8), and 

2,872 of 35,040 unit-streamflow values (about 8 percent) fell 

below the instream-flow value (table 6 and fig. 9). 

For 1992, a below-average streamflow year, 74 of 366 

daily mean streamflow values (about 20 percent) fell below the 

instream-flow value (fig. 7, table 6, and table 8), 181 of 366 

daily minimum streamflow values (about 50 percent) fell 

below the instream-flow value (fig. 8 and table 6), and 7,900 

of 35,136 unit-streamflow values (about 23 percent) fell below 

the instream-flow value (fig. 9 and table 6).

The amount of time that streamflow is below the 

instream-flow value can be determined by multiplying each 

unit-streamflow excursion (unit-streamflow value below 

instream-flow value) by 15 minutes. Comparisons of unitstreamflow values (15-minute intervals) and instream flows 

are based on the use of a single unit-streamflow value for each 

15-minute interval of comparison. Although streamflow may 

change during a 15-minute interval, these changes are 

expected to be small compared to the total streamflow. On the 

basis of this assumption, streamflow during 1991 was below 

the instream-flow value a total of 718 hours, about 30 days.

059!,,502)6%2!4059!,,50	

*AN

 

*AN



&EB



&EB



-AR



-AR !PR

 

!PR



-AY



-AY *UN

 

*UN *UL

 

*UL



!UG



!UG



3EP



3EP /CT

 

/CT



.OV



.OV



$EC



$EC

















342%!-&,/7).#5")#&%%40%23%#/.$

Figure 6. Graph showing Instream-flow values at gaging station Puyallup River at Puyallup (12101500) in the lower Puyallup River Basin, 

Washington.

Instream-flow values are listed in Chapter 173-510 of the Washington Administrative Code (accessed January 22, 2003 at URL 

http://www.leg.wa.gov/wac/).

Table 6. Comparison of daily mean, daily minimum, and unit-streamflow values with instream-flow values for gaging station Puyallup River

at Puyallup (12101500), Washington, 1991 and 1992

Streamflow, in cubic feet per second

1991 1992

Daily mean Daily 

minimum Unit Daily mean Daily minimum Unit 

Total number 365 365 35,040 366 366 35,136

Total number below instream flow 19 76 2,872 74 181 7,900

Percent below instream flow 5 21 8 20 50 23
Instream-Flow Analysis 13





























*AN &EB -AR !PR -AY *UNE *ULY !UG 3EPT /CT .OV $EC



342%!-&,/7).#5")#&%%40%23%#/.$



$!),9-%!.342%!-&,/7

).342%!-&,/7

059!,,502)6%2!4059!,,50	

Figure 7. Graphs showing Daily mean streamflow and instream flow at gaging station Puyallup River at Puyallup (station 12101500) in the 

lower Puyallup River Basin, Washington, 1991 and 1992.

The largest excursion occurred on October 28, from 7:15 a.m. 

to 8:15 a.m., when streamflow (518 ft3/s) was 482 ft3/s below 

the instream-flow value of 1,000 ft3/s. The daily value for 

October 28 was 1,330 ft3/s, 300 ft3/s above the instream-flow 

value. During 1992, streamflow was below the instream-flow 

value a total of 1,975 hours, about 82 days. The largest 

excursion occurred on June 16, from 4:00 a.m. to 8:30 a.m., 

when streamflow (884 ft3/s) was 1,116 ft3/s below the 

instream-flow value of 2,000 ft3/s. The daily value for June 16 

was 1,630 ft3/s, 370 ft3/s below the instream-flow value.

The duration of periods when streamflow is below 

instream-flow values was assessed by examining the unitstreamflow-value record. Of the 35,040 unit values recorded 

in 1991, the longest span of consecutive unit values below the 

instream-flow value occurred from 7:30 p.m. on October 18 

to 3:30 p.m. on October 20 (fig. 9). During that period, 176 

consecutive unit values were below the instream-flow value. 

For 1991, the average number of consecutive unit values 

below the instream-flow value was 41.

In 1992, the longest span of consecutive unit-streamflow 

values below the instream-flow value occurred from 3:30 

p.m. on May 2 to 11:15 a.m. on May 7 (fig. 9). During that 

period 464 consecutive unit values were below the instreamflow value. The average number of consecutive unit values 

below the instream-flow value was 51.

A comparison of the hydrographs for daily mean 

streamflow and unit streamflow with the hydrograph for 

instream flow demonstrates that, under certain streamflow 

conditions, excursions below the instream-flow value may 

be identified only when unit-streamflow values are 

considered (fig. 10). For a 15-day period, October 26 through 

November 10, 1992 (table 9, at back of report), no daily mean 

streamflow values fell below the instream-flow value. 

However, during the same 15-day period, unit-streamflow 

values fell below the instream-flow value on 8 days (October 

26 to November 1, and November 4). 
14 Trends In Streamflow and Comparisons with Instream Flows in the Lower Puyallup River Basin, Washington

*AN &EB -AR !PR -AY *UNE *ULY !UG 3EPT /CT .OV $EC 























342%!-&,/7).#5")#&%%40%23%#/.$

$!),9-).)-5-342%!-&,/7

).342%!-&,/7

059!,,502)6%2!4059!,,50	

Figure 8. Graphs showing Daily minimum streamflow and instream flow at gaging station Puyallup River at Puyallup (station 12101500) in 

the lower Puyallup River Basin, Washington, 1991 and 1992.

The hydrograph of unit streamflow in the Puyallup River 

shows a pattern of rapid decrease, reaching a minimum at the 

start of a day (midnight), followed by a rapid increase to fairly 

uniform flow until the next midnight. An example of this 

pattern is shown in figure 10, for October 26 through 

November 10 but is still evident in the hydrograph from 

November 1 through November 9. Most unit-streamflow 

excursions below the instream-flow value occur during the 

low-flow part of this pattern. Very little rain (less than 0.1 in.) 

fell in the Puyallup River Basin during the 5 days preceding 

October 26, and the hydrograph of the Puyallup River from 

October 26 through October 29 most likely represents baseflow conditions (streamflow derived from ground-water 

discharge), melt water from Mt. Rainier, and the operation of 

Lake Tapps Diversion. Beginning on October 29 (and 

continuing to the end of the year), rain was recorded almost 

every day in the basin, increasing runoff to the river and 

disrupting the uniform pattern of streamflow evident in first 

part of the hydrograph. The hydrograph of daily mean 

streamflow does not exhibit the rapid decrease and increase 

observed in the unit-streamflow hydrograph because the data 

points used to construct the hydrograph represent the 

arithmetic mean of unit-streamflow values for each day, and 

therefore the full range of daily flows is not reflected in the 

hydrograph. 
Instream-Flow Analysis 15 *!. &%" -!2 !02 -!9 *5.% *5,9 !5' 3%04 /#4 ./6 $%# 

















342%!-&,/7).#5")#&%%40%23%#/.$













5.)4342%!-&,/7).342%!-&,/7

059!,,502)6%2!4059!,,50	

Figure 9. Graphs showing Unit-streamflow values and instream flow at gaging station Puyallup River at Puyallup (station 12101500) in the lower Puyallup River Basin, 

Washington, 1991 and 1992.
16 Trends In Streamflow and Comparisons with Instream Flows in the Lower Puyallup River Basin, Washington

The unit-streamflow hydrograph for the Puyallup River at 

Puyallup has a distinct, regular pattern during low-flow 

periods that is similar to the Lake Tapps Diversion hydrograph. 

The hydrograph of unit-streamflow values for the Puyallup 

River at Puyallup was compared with those for the Puyallup 

River near Orting (station 12093500), White River Canal at 

Buckley (station 12099000), and Lake Tapps Diversion at 

Dieringer (station 12101100) for a 16-day period (October 26 

through November 10, 1992) to determine the origin of the 

pattern (fig. 11). Station 12093500 represents flow in the 

Puyallup River before its confluence with the White River, 

station 12099000 represents flow that is diverted from the 

White River into Lake Tapps and the power plant, and station 

12101100 represents flow from Lake Tapps back into the 

White River before its confluence with the Puyallup River. The 

hydrograph of Puyallup River streamflow closely mimics the 

hydrograph at Lake Tapps Diversion, which is the outflow 

from the power plant, suggesting that outflow from the power 

plant affects streamflow in the lower Puyallup River. 

Streamflow entering Lake Tapps by way of the White River 

Canal, even though completely regulated, does not have the 

same, or even a similar, pattern as the Puyallup River or 

diversion. The influence of White River Canal on streamflow 

in the Puyallup River appears to be obscured by operation of 

the Lake Tapps Diversion.

















































342%!-&,/7).#5")#&%%40%23%#/.$



















02%#)0)4!4)/.).).#(%3

/#4 /#4 /#4 ./6 ./6 ./6 ./6 ./6 /#4 ./6

059!,,502)6%2!4059!,,5034!4)/.

02%#)0)4!4)/.2%#/2$%$!4059!,,50%80%2)-%.4!,34!4)/.

5.)4342%!-&,/76!,5%

$!),9-%!.342%!-&,/7

).342%!-&,/7

Figure 10. Graph showing Relation between daily mean streamflow, unit values, and instream flow at gaging station Puyallup River at Puyallup 

(12101500) in the lower Puyallup River Basin, Washington. 
Summary 17

Summary

The U.S. Geological Survey conducted a study, in 

cooperation with the Puyallup Tribe of Indians, to identify 

trends in streamflow in the lower Puyallup River Basin and to 

compare streamflows in the Puyallup River with regulatory 

minimum instream flows. Daily mean streamflow, monthly 

mean streamflow for October, and annual mean streamflow 

records from 1980 through 2001 for four gaging stations in the 

lower Puyallup River Basin were analyzed for temporal trends. 

Daily mean streamflow records were grouped into wet 

(November through June) and dry periods (July through 

October) data sets for analysis. Temporal trends in streamflow 

data were evaluated using Kendall’s tau correlation coefficient. 

The statistical significance of trends was evaluated in terms of 

the probability (p) that observed trends in streamflow occurred 

by chance. Daily mean streamflow, daily minimum 

streamflow, and unit-streamflow records for the Puyallup 

River for 1991 and 1992 were evaluated for the instream-flow 

analysis. 

Annual precipitation records from three National Weather 

Service stations in the lower Puyallup River Basin and groundwater level records from five wells in the basin were analyzed 

to determine possible relations with streamflow in the basin. 

Insufficient water-use and land-use data were available to 

calculate possible correlations with streamflow in the basin.

Daily mean streamflow records from the Puyallup River, 

Clarks Creek, and Swan Creek did not display any statistically 

significant temporal trends for the period of analysis. Kendall’s 

tau values ranged from –0.18 to 0.07 and p-values ranged from 

0.14 to 0.86 for the wet periods; Kendall’s tau and p-values 

ranged from –0.05 to 0.14 and 0.45 to 0.88, respectively, for the 

dry periods. Trend analysis of monthly mean streamflows for 

October at the two stations on the Puyallup River indicate no 

significant trends for the period of analysis. The Kendall’s tau 

and p-value for Puyallup River at Puyallup were 0.25 and 0.12, 

respectively, and for station Puyallup River at Orting were 0.11 

and 0.49, respectively. Trend analysis of annual mean 

streamflows at the two Puyallup River stations also showed no 

statistically significant trends.







































342%!-&,/7).#5")#&%%40%23%#/.$

/#4 /#4 /#4 /#4 ./6 ./6 ./6 ./6 ./6 ./6

059!,,502)6%2!4059!,,50

34!4)/.

,!+%4!003$)6%23)/.!4$)%2).'%2

34!4)/.

7()4%2)6%2#!.!,!4"5#+,%9

34!4)/.

059!,,502)6%2.%!2/24).'

34!4)/.

Figure 11. Graph showing Unit-streamflow values from gaging stations Puyallup River at Puyallup, Puyallup River near Orting, Lake 

Tapps Diversion, and White River Canal and precipitation recorded at the Puyallup Experimental Station in the Puyallup River Basin, 

October 26 through November 11, 1992.
18 Trends In Streamflow and Comparisons with Instream Flows in the Lower Puyallup River Basin, Washington

Precipitation records corresponding to the period of 

analysis of streamflow records did not indicate any statistically 

significant trends in precipitation. A trend of increasing 

ground-water levels with time (1995 through 1997) was 

identified in well 20N/04E-34G01. This well is drilled to about 

550 feet below land surface, and variations in water levels at 

this depth probably do not affect streamflow in the Puyallup 

River. Statistically significant trends were not identified in 

ground-water level records for 1995 through 1997 for four 

other wells in the study area. 

From 1985 to 2000, total water use for the hydrologic unit 

that includes the Puyallup Indian Reservation increased from 

about 36 to about 42 Mgal/d. However, this increase cannot be 

related to streamflow in the Puyallup River because much of 

the water used in the hydrologic unit originates from outside 

the Puyallup River Basin and is not quantified. Two sets of 

land-use data were evaluated in an attempt to relate changing 

land use to streamflow trends in the Puyallup River Basin, one 

derived from aerial photographs taken in the 1970s and the 

other derived from LANDSAT data collected in 1992. The two 

data sets use different land-use categories and have different 

data resolutions. Because of those differences, it was not 

possible to relate apparent changes in land use to streamflow.

Instream-flow values were compared with 2 years of 

streamflow data for the Puyallup River, a year of near-normal 

streamflow (1991) and a year of below normal streamflow 

(1992). Daily mean, daily minimum, and unit-streamflow 

values were evaluated to determine how each measure of 

streamflow compared with instream-flow values. The 

occurrence of excursions (streamflow below the instream-flow 

value) was greatest when unit-streamflow values were 

compared with instream-flow values for both years. The use of 

daily mean streamflow records may underestimate the 

occurrence of excursions under certain streamflow conditions. 

The average number of consecutive unit-value excursions was 

less in 1991 than in 1992 (41 and 51, respectively). During 

1991, most unit-value excursions occurred in September and 

October; during 1992 most unit-value excursions occurred 

from March through September. The largest excursion in 1991 

occurred on October 28, when the streamflow of 518 ft3/s was 

482 ft3/s below the instream-flow value of 1,000 ft3/s. In 1992, 

the largest excursion occurred on June 16, when the 

streamflow of 884 ft3/s was 1,116 ft3/s below the instreamflow value of 2,000 ft3/s. 

The unit-streamflow hydrograph for the Puyallup River at 

Puyallup has a distinct, regular pattern. Hydrographs of unitstreamflow values for the Puyallup River at Puyallup, Lake 

Tapps Diversion at Dieringer, and White River Canal at 

Buckley were evaluated to determine the origin of the pattern. 

The hydrograph of Puyallup River streamflow closely mimics 

the hydrograph at Lake Tapps Diversion, which is the outflow 

from a power plant, suggesting that the outflow from the power 

plant affects streamflow in the Puyallup River. Streamflow 

entering Lake Tapps through the White River Canal does not 

have the same pattern as the Puyallup River or diversion. The 

influence of White River Canal on streamflow in the Puyallup 

River appears to be obscured by operation of the Lake Tapps 

Diversion.

References Cited

Bovee, K.D., Lamb, B.L., Bartholow, J.M., Stalnaker, C.B., 

Taylor, Jonathan, and Henriksen, Jim, 1998, Stream habitat 

analysis using the Instream Flow Incremental Methodology: 

U.S. Geological Survey, Biological Resources Division 

Information and Technology Report USGS/BRD-1998-

0004, 131 p.

Helsel, D.R., and Hirsch, R.M., 1993, Statistical methods in 

water resources: Amsterdam, Elsevier and Co., 529 p.

Hydrosphere Data Products, 2002, National Climate Data 

Center summary of the day, v. 13.3: Boulder, Colo., 

Hydrosphere Data Products, CD-ROM.

Jones, M.A., Orr, L.A, Ebbert, J.C., and Sumioka, S.S., 1999, 

Ground-water hydrology of the Tacoma-Puyallup area, 

Pierce County, Washington: U.S. Geological Survey WaterResources Investigations Report 99-4013, 154 p.

Konrad, C.P., and Booth, D.B., 2002, Hydrologic trends 

associated with urban development for selected streams in 

the Puget Sound Basin, western Washington: U.S. 

Geological Survey Water-Resources Investigations Report 

02-4040, 40 p.

Kresch, D.L., and Prych, E.A., 1989, Streamflow statistics for 

streams on the Puyallup Indian Reservation, Washington: 

U.S. Geological Survey Water-Resources Investigations 

Report 87-4228, 34 p.

Mastin, M.C., 1998, Flood potential of South Prairie Creek, 

Pierce County, Washington: U.S. Geological Survey WaterResources Investigations Report 98-4009, 75 p.

Washington Department of Ecology, 2001, Setting instream 

flows in Washington State: Publication No. 98-1813-WR,

4 p.

Western Regional Climate Center, 2003,Washington climate 

summaries: Data available on the Web, accessed February 

10, 2003, at http://www.wrcc.dri.edu/summary/ 

climsmwa.html.
Table 7 19

Date

Daily mean 

streamflow 

(ft3/s)

Instream 

flow

(ft3/s)

Difference

(ft3/s) Excursion

01-01-91 1,880 1,400 480 No

01-02-91 2,010 1,400 610 No

01-03-91 2,040 1,400 640 No

01-04-91 2,010 1,400 610 No

01-05-91 2,020 1,400 620 No

01-06-91 1,930 1,400 530 No

01-07-91 2,300 1,400 900 No

01-08-91 2,690 1,400 1,290 No

01-09-91 2,700 1,400 1,300 No

01-10-91 3,180 1,400 1,780 No

01-11-91 3,330 1,400 1,930 No

01-12-91 7,080 1,400 5,680 No

01-13-91 9,400 1,400 8,000 No

01-14-91 9,190 1,400 7,790 No

01-15-91 9,720 1,400 8,320 No

01-16-91 6,880 1,400 5,480 No

01-17-91 6,160 1,400 4,760 No

01-18-91 5,420 1,400 4,020 No

01-19-91 4,780 1,400 3,380 No

01-20-91 4,310 1,400 2,910 No

01-21-91 4,010 1,400 2,610 No

01-22-91 3,550 1,400 2,150 No

01-23-91 3,340 1,400 1,940 No

01-24-91 3,320 1,400 1,920 No

01-25-91 3,300 1,400 1,900 No

01-26-91 3,190 1,400 1,790 No

01-27-91 3,110 1,400 1,710 No

01-28-91 3,120 1,400 1,720 No

01-29-91 3,080 1,400 1,680 No

01-30-91 2,910 1,400 1,510 No

01-31-91 2,950 1,400 1,550 No

02-01-91 3,090 1,400 1,690 No

02-02-91 3,870 1,407 2,463 No

02-03-91 5,790 1,414 4,376 No

02-04-91 6,110 1,421 4,689 No

02-05-91 8,660 1,429 7,231 No

02-06-91 7,570 1,436 6,134 No

02-07-91 5,500 1,443 4,057 No

02-08-91 4,480 1,450 3,030 No

02-09-91 3,850 1,457 2,393 No

02-10-91 3,620 1,464 2,156 No

02-11-91 3,520 1,471 2,049 No

02-12-91 3,830 1,479 2,351 No

02-13-91 4,810 1,486 3,324 No

02-14-91 7,950 1,493 6,457 No

02-15-91 7,710 1,500 6,210 No

02-16-91 6,850 1,507 5,343 No

Table 7. Daily mean streamflow and instream–flow values for gaging station Puyallup River at Puyallup (12101500) for 1991

[Difference is streamflow minus instream flow; excursion indicates streamflow is less than instream flow value for that day; ft3/s, cubic feet per second]

02-17-91 5,800 1,514 4,286 No

02-18-91 4,980 1,521 3,459 No

02-19-91 12,600 1,529 11,071 No

02-20-91 26,600 1,536 25,064 No

02-21-91 15,700 1,543 14,157 No

02-22-91 11,800 1,550 10,250 No

02-23-91 9,620 1,557 8,063 No

02-24-91 7,520 1,564 5,956 No

02-25-91 5,750 1,571 4,179 No

02-26-91 5,390 1,579 3,811 No

02-27-91 5,090 1,586 3,504 No

02-28-91 4,240 1,593 2,647 No

03-01-91 4,320 1,600 2,720 No

03-02-91 4,580 1,607 2,973 No

03-03-91 5,030 1,614 3,416 No

03-04-91 5,490 1,621 3,869 No

03-05-91 4,790 1,629 3,161 No

03-06-91 4,280 1,636 2,644 No

03-07-91 3,920 1,643 2,277 No

03-08-91 3,740 1,650 2,090 No

03-09-91 3,630 1,657 1,973 No

03-10-91 3,710 1,664 2,046 No

03-11-91 3,530 1,671 1,859 No

03-12-91 3,810 1,679 2,131 No

03-13-91 3,770 1,686 2,084 No

03-14-91 3,520 1,693 1,827 No

03-15-91 3,360 1,700 1,660 No

03-16-91 3,230 1,706 1,524 No

03-17-91 3,110 1,712 1,398 No

03-18-91 3,040 1,718 1,322 No

03-19-91 3,160 1,724 1,436 No

03-20-91 3,080 1,729 1,351 No

03-21-91 3,010 1,735 1,275 No

03-22-91 3,290 1,741 1,549 No

03-23-91 3,440 1,747 1,693 No

03-24-91 3,480 1,753 1,727 No

03-25-91 3,470 1,759 1,711 No

03-26-91 3,540 1,765 1,775 No

03-27-91 3,290 1,771 1,519 No

03-28-91 3,320 1,776 1,544 No

03-29-91 3,280 1,782 1,498 No

03-30-91 3,240 1,788 1,452 No

03-31-91 3,320 1,794 1,526 No

04-01-91 3,540 1,800 1,740 No

04-02-91 3,680 1,807 1,873 No

04-03-91 3,580 1,814 1,766 No

04-04-91 6,310 1,821 4,489 No

Date

Daily mean 

streamflow 

(ft3/s)

Instream 

flow

(ft3/s)

Difference

(ft3/s) Excursion
20 Trends In Streamflow and Comparisons with Instream Flows in the Lower Puyallup River Basin, Washington

04-05-91 18,900 1,829 17,071 No

04-06-91 14,700 1,836 12,864 No

04-07-91 9,160 1,843 7,317 No

04-08-91 6,760 1,850 4,910 No

04-09-91 6,900 1,857 5,043 No

04-10-91 6,370 1,864 4,506 No

04-11-91 5,450 1,871 3,579 No

04-12-91 5,210 1,879 3,331 No

04-13-91 5,060 1,886 3,174 No

04-14-91 4,930 1,893 3,037 No

04-15-91 4,860 1,900 2,960 No

04-16-91 4,370 1,906 2,464 No

04-17-91 4,220 1,913 2,308 No

04-18-91 3,710 1,919 1,791 No

04-19-91 3,660 1,925 1,735 No

04-20-91 3,240 1,931 1,309 No

04-21-91 3,310 1,938 1,373 No

04-22-91 3,850 1,944 1,906 No

04-23-91 4,050 1,950 2,100 No

04-24-91 4,070 1,956 2,114 No

04-25-91 3,690 1,963 1,728 No

04-26-91 3,250 1,969 1,281 No

04-27-91 3,090 1,975 1,115 No

04-28-91 2,400 1,981 419 No

04-29-91 3,090 1,988 1,103 No

04-30-91 2,450 1,994 456 No

05-01-91 2,210 2,000 210 No

05-02-91 2,140 2,000 140 No

05-03-91 2,060 2,000 60 No

05-04-91 2,020 2,000 20 No

05-05-91 1,940 2,000 -60 Yes

05-06-91 2,090 2,000 90 No

05-07-91 2,140 2,000 140 No

05-08-91 3,170 2,000 1,170 No

05-09-91 2,480 2,000 480 No

05-10-91 2,560 2,000 560 No

05-11-91 2,010 2,000 10 No

05-12-91 2,040 2,000 40 No

05-13-91 2,030 2,000 30 No

05-14-91 2,750 2,000 750 No

05-15-91 2,660 2,000 660 No

05-16-91 2,670 2,000 670 No

05-17-91 2,890 2,000 890 No

05-18-91 3,910 2,000 1,910 No

05-19-91 3,920 2,000 1,920 No

05-20-91 3,960 2,000 1,960 No

Date

Daily mean 

streamflow 

(ft3/s)

Instream 

flow

(ft3/s)

Difference

(ft3/s) Excursion

05-21-91 3,940 2,000 1,940 No

05-22-91 4,080 2,000 2,080 No

05-23-91 4,470 2,000 2,470 No

05-24-91 4,250 2,000 2,250 No

05-25-91 4,500 2,000 2,500 No

05-26-91 4,470 2,000 2,470 No

05-27-91 3,980 2,000 1,980 No

05-28-91 3,710 2,000 1,710 No

05-29-91 3,620 2,000 1,620 No

05-30-91 3,910 2,000 1,910 No

05-31-91 3,650 2,000 1,650 No

06-01-91 3,590 2,000 1,590 No

06-02-91 3,880 2,000 1,880 No

06-03-91 3,580 2,000 1,580 No

06-04-91 2,300 2,000 300 No

06-05-91 1,940 2,000 -60 Yes

06-06-91 3,780 2,000 1,780 No

06-07-91 4,380 2,000 2,380 No

06-08-91 4,520 2,000 2,520 No

06-09-91 3,760 2,000 1,760 No

06-10-91 3,970 2,000 1,970 No

06-11-91 4,530 2,000 2,530 No

06-12-91 4,520 2,000 2,520 No

06-13-91 4,240 2,000 2,240 No

06-14-91 4,080 2,000 2,080 No

06-15-91 3,640 2,000 1,640 No

06-16-91 3,570 2,000 1,570 No

06-17-91 3,600 2,000 1,600 No

06-18-91 3,240 2,000 1,240 No

06-19-91 3,320 2,000 1,320 No

06-20-91 4,940 2,000 2,940 No

06-21-91 5,520 2,000 3,520 No

06-22-91 4,820 2,000 2,820 No

06-23-91 4,370 2,000 2,370 No

06-24-91 4,060 2,000 2,060 No

06-25-91 3,960 2,000 1,960 No

06-26-91 3,870 2,000 1,870 No

06-27-91 3,790 2,000 1,790 No

06-28-91 4,080 2,000 2,080 No

06-29-91 4,310 2,000 2,310 No

06-30-91 4,150 2,000 2,150 No

07-01-91 3,840 2,000 1,840 No

07-02-91 4,140 1,982 2,158 No

07-03-91 4,910 1,964 2,946 No

07-04-91 5,230 1,946 3,284 No

07-05-91 4,780 1,929 2,851 No

Date

Daily mean 

streamflow 

(ft3/s)

Instream 

flow

(ft3/s)

Difference

(ft3/s) Excursion

Table 7. Daily mean streamflow and instream–flow values for gaging station Puyallup River at Puyallup (12101500) for 1991—Continued

[Difference is streamflow minus instream flow; excursion indicates streamflow is less than instream flow value for that day; ft3/s, cubic feet per second]
Table 7 21

07-06-91 4,150 1,911 2,239 No

07-07-91 3,710 1,893 1,817 No

07-08-91 3,700 1,875 1,825 No

07-09-91 3,580 1,857 1,723 No

07-10-91 3,200 1,839 1,361 No

07-11-91 3,360 1,821 1,539 No

07-12-91 3,300 1,804 1,496 No

07-13-91 3,520 1,786 1,734 No

07-14-91 3,460 1,768 1,692 No

07-15-91 3,040 1,750 1,290 No

07-16-91 2,940 1,735 1,205 No

07-17-91 2,920 1,721 1,199 No

07-18-91 2,690 1,706 984 No

07-19-91 2,600 1,691 909 No

07-20-91 2,420 1,676 744 No

07-21-91 2,460 1,662 798 No

07-22-91 2,790 1,647 1,143 No

07-23-91 2,800 1,632 1,168 No

07-24-91 3,080 1,618 1,462 No

07-25-91 3,410 1,603 1,807 No

07-26-91 2,990 1,588 1,402 No

07-27-91 2,460 1,574 886 No

07-28-91 2,420 1,559 861 No

07-29-91 2,580 1,544 1,036 No

07-30-91 2,430 1,529 901 No

07-31-91 2,330 1,515 815 No

08-01-91 2,360 1,500 860 No

08-02-91 2,160 1,486 674 No

08-03-91 2,160 1,471 689 No

08-04-91 2,490 1,457 1,033 No

08-05-91 2,540 1,443 1,097 No

08-06-91 2,560 1,429 1,132 No

08-07-91 2,710 1,414 1,296 No

08-08-91 2,890 1,400 1,490 No

08-09-91 2,900 1,386 1,514 No

08-10-91 2,470 1,371 1,099 No

08-11-91 1,980 1,357 623 No

08-12-91 1,900 1,343 557 No

08-13-91 1,850 1,328 522 No

08-14-91 1,840 1,314 526 No

08-15-91 2,000 1,300 700 No

08-16-91 2,220 1,291 929 No

08-17-91 2,260 1,282 978 No

08-18-91 2,380 1,274 1,106 No

08-19-91 2,410 1,265 1,145 No

08-20-91 2,270 1,256 1,014 No

08-21-91 2,100 1,247 853 No

Date

Daily mean 

streamflow 

(ft3/s)

Instream 

flow

(ft3/s)

Difference

(ft3/s) Excursion

08-22-91 2,110 1,238 872 No

08-23-91 1,910 1,229 681 No

08-24-91 1,590 1,221 369 No

08-25-91 1,460 1,212 248 No

08-26-91 1,550 1,203 347 No

08-27-91 1,400 1,194 206 No

08-28-91 1,800 1,185 615 No

08-29-91 2,330 1,176 1,154 No

08-30-91 2,540 1,168 1,372 No

08-31-91 2,330 1,159 1,171 No

09-01-91 2,630 1,150 1,480 No

09-02-91 1,920 1,139 781 No

09-03-91 1,410 1,129 281 No

09-04-91 1,750 1,118 632 No

09-05-91 1,680 1,107 573 No

09-06-91 1,790 1,096 694 No

09-07-91 1,790 1,086 704 No

09-08-91 1,700 1,075 625 No

09-09-91 1,630 1,064 566 No

09-10-91 1,540 1,054 486 No

09-11-91 1,400 1,043 357 No

09-12-91 1,540 1,032 508 No

09-13-91 1,840 1,021 819 No

09-14-91 1,190 1,011 179 No

09-15-91 837 1,000 -163 Yes

09-16-91 971 1,000 -29 Yes

09-17-91 1,290 1,000 290 No

09-18-91 1,550 1,000 550 No

09-19-91 1,300 1,000 300 No

09-20-91 1,410 1,000 410 No

09-21-91 1,190 1,000 190 No

09-22-91 962 1,000 -38 Yes

09-23-91 1,210 1,000 210 No

09-24-91 1,120 1,000 120 No

09-25-91 1,260 1,000 260 No

09-26-91 1,370 1,000 370 No

09-27-91 1,460 1,000 460 No

09-28-91 1,620 1,000 620 No

09-29-91 1,530 1,000 530 No

09-30-91 1,350 1,000 350 No

10-01-91 1,410 1,000 410 No

10-02-91 1,220 1,000 220 No

10-03-91 1,180 1,000 180 No

10-04-91 1,020 1,000 20 No

10-05-91 910 1,000 -90 Yes

10-06-91 962 1,000 -38 Yes

10-07-91 916 1,000 -84 Yes

Date

Daily mean 

streamflow 

(ft3/s)

Instream 

flow

(ft3/s)

Difference

(ft3/s) Excursion

Table 7. Daily mean streamflow and instream–flow values for gaging station Puyallup River at Puyallup (12101500) for 1991—Continued

[Difference is streamflow minus instream flow; excursion indicates streamflow is less than instream flow value for that day; ft3/s, cubic feet per second]
22 Trends In Streamflow and Comparisons with Instream Flows in the Lower Puyallup River Basin, Washington

10-08-91 863 1,000 -137 Yes

10-09-91 593 1,000 -407 Yes

10-10-91 917 1,000 -83 Yes

10-11-91 1,040 1,000 40 No

10-12-91 997 1,000 -003 Yes

10-13-91 900 1,000 -100 Yes

10-14-91 971 1,000 -29 Yes

10-15-91 1,050 1,000 50 No

10-16-91 1,070 1,000 70 No

10-17-91 957 1,000 -43 Yes

10-18-91 871 1,000 -129 Yes

10-19-91 778 1,000 -222 Yes

10-20-91 850 1,000 -150 Yes

10-21-91 1,040 1,000 40 No

10-22-91 1,020 1,000 20 No

10-23-91 1,420 1,000 420 No

10-24-91 1,450 1,000 450 No

10-25-91 1,520 1,000 520 No

10-26-91 1,370 1,000 370 No

10-27-91 1,230 1,000 230 No

10-28-91 1,330 1,000 330 No

10-29-91 1,330 1,000 330 No

10-30-91 1,310 1,000 310 No

10-31-91 1,410 1,000 410 No

11-01-91 1,770 1,000 770 No

11-02-91 1,230 1,007 223 No

11-03-91 1,100 1,014 086 No

11-04-91 1,650 1,021 629 No

11-05-91 5,570 1,029 4,541 No

11-06-91 4,180 1,036 3,144 No

11-07-91 2,540 1,043 1,497 No

11-08-91 2,020 1,050 970 No

11-09-91 1,570 1,057 513 No

11-10-91 1,210 1,064 146 No

11-11-91 1,190 1,071 119 No

11-12-91 2,810 1,079 1,731 No

11-13-91 3,130 1,086 2,044 No

11-14-91 2,610 1,093 1,517 No

11-15-91 2,410 1,100 1,310 No

11-16-91 1,870 1,106 0,764 No

11-17-91 2,820 1,113 1,708 No

11-18-91 2,500 1,119 1,381 No

11-19-91 2,340 1,125 1,215 No

Date

Daily mean 

streamflow 

(ft3/s)

Instream 

flow

(ft3/s)

Difference

(ft3/s) Excursion

11-20-91 4,570 1,131 3,439 No

11-21-91 3,920 1,138 2,783 No

11-22-91 2,770 1,144 1,626 No

11-23-91 2,570 1,150 1,420 No

11-24-91 3,010 1,156 1,854 No

11-25-91 8,980 1,163 7,818 No

11-26-91 7,820 1,169 6,651 No

11-27-91 6,670 1,175 5,495 No

11-28-91 5,490 1,181 4,309 No

11-29-91 4,590 1,188 3,403 No

11-30-91 3,410 1,194 2,216 No

12-01-91 3,480 1,200 2,280 No

12-02-91 4,090 1,207 2,883 No

12-03-91 3,520 1,214 2,306 No

12-04-91 3,660 1,221 2,439 No

12-05-91 5,460 1,229 4,231 No

12-06-91 8,810 1,236 7,574 No

12-07-91 7,930 1,243 6,687 No

12-08-91 7,380 1,250 6,130 No

12-09-91 7,980 1,257 6,723 No

12-10-91 8,030 1,264 6,766 No

12-11-91 5,940 1,271 4,669 No

12-12-91 5,580 1,279 4,301 No

12-13-91 5,430 1,286 4,144 No

12-14-91 4,480 1,293 3,187 No

12-15-91 3,920 1,300 2,620 No

12-16-91 3,680 1,306 2,374 No

12-17-91 3,540 1,312 2,228 No

12-18-91 3,460 1,318 2,142 No

12-19-91 3,330 1,324 2,006 No

12-20-91 3,180 1,329 1,851 No

12-21-91 3,320 1,335 1,985 No

12-22-91 3,420 1,341 2,079 No

12-23-91 3,270 1,347 1,923 No

12-24-91 3,200 1,353 1,847 No

12-25-91 3,180 1,359 1,821 No

12-26-91 2,540 1,365 1,175 No

12-27-91 2,280 1,371 909 No

12-28-91 3,190 1,376 1,814 No

12-29-91 1,470 1,382 088 No

12-30-91 1,280 1,388 -108 Yes

12-31-91 1,730 1,394 336 No

Date

Daily mean 

streamflow 

(ft3/s)

Instream 

flow

(ft3/s)

Difference

(ft3/s) Excursion

Table 7. Daily mean streamflow and instream–flow values for gaging station Puyallup River at Puyallup (12101500) for 1991—Continued

[Difference is streamflow minus instream flow; excursion indicates streamflow is less than instream flow value for that day; ft3/s, cubic feet per second]
Table 8 23

Date

Daily mean 

streamflow

(ft3/s)

Instream 

flow

(ft3/s)

Difference

(ft3/s) Excursion

01-01-92 2,020 1,400 620 No

01-02-92 2,260 1,400 860 No

01-03-92 2,200 1,400 800 No

01-04-92 2,420 1,400 1020 No

01-05-92 2,890 1,400 1490 No

01-06-92 2,280 1,400 880 No

01-07-92 2,710 1,400 1310 No

01-08-92 2,640 1,400 1240 No

01-09-92 2,080 1,400 680 No

01-10-92 2,200 1,400 800 No

01-11-92 1,760 1,400 360 No

01-12-92 1,580 1,400 180 No

01-13-92 2,090 1,400 690 No

01-14-92 2,050 1,400 650 No

01-15-92 1,790 1,400 390 No

01-16-92 2,510 1,400 1110 No

01-17-92 2,590 1,400 1190 No

01-18-92 1,980 1,400 580 No

01-19-92 1,810 1,400 410 No

01-20-92 1,920 1,400 520 No

01-21-92 1,960 1,400 560 No

01-22-92 2,290 1,400 890 No

01-23-92 3,880 1,400 2480 No

01-24-92 4,800 1,400 3400 No

01-25-92 3,330 1,400 1930 No

01-26-92 3,440 1,400 2040 No

01-27-92 3,640 1,400 2240 No

01-28-92 8,790 1,400 7390 No

01-29-92 9,600 1,400 8200 No

01-30-92 9,110 1,400 7710 No

01-31-92 8,570 1,400 7170 No

02-01-92 6,780 1,400 5380 No

02-02-92 5,800 1,407 4393 No

02-03-92 4,830 1,414 3416 No

02-04-92 3,850 1,421 2429 No

02-05-92 3,550 1,429 2121 No

02-06-92 3,360 1,436 1924 No

02-07-92 3,240 1,443 1797 No

02-08-92 3,190 1,450 1740 No

02-09-92 3,080 1,457 1623 No

02-10-92 2,990 1,464 1526 No

02-11-92 2,900 1,471 1429 No

02-12-92 2,840 1,479 1361 No

02-13-92 2,830 1,486 1344 No

02-14-92 2,780 1,493 1287 No

02-15-92 2,310 1,500 810 No

02-16-92 2,090 1,507 583 No

Table 8. Daily mean streamflow and instream-flow values for gaging station Puyallup River at Puyallup (12101500) for 1992

[Difference is streamflow minus instream flow; excursion indicates streamflow is less than instream flow value for that day; ft3/s, cubic feet per second]

02-17-92 1,950 1,513 437 No

02-18-92 2,020 1,520 500 No

02-19-92 2,410 1,527 883 No

02-20-92 2,450 1,533 917 No

02-21-92 3,140 1,540 1600 No

02-22-92 4,600 1,547 3053 No

02-23-92 4,860 1,553 3307 No

02-24-92 4,620 1,560 3060 No

02-25-92 4,380 1,567 2813 No

02-26-92 4,110 1,573 2537 No

02-27-92 4,220 1,580 2640 No

02-28-92 3,660 1,587 2073 No

02-29-92 3,430 1,593 1837 No

03-01-92 3,300 1,600 1700 No

03-02-92 3,140 1,607 1533 No

03-03-92 3,060 1,614 1446 No

03-04-92 3,040 1,621 1419 No

03-05-92 3,070 1,629 1441 No

03-06-92 3,210 1,636 1574 No

03-07-92 3,230 1,643 1587 No

03-08-92 3,140 1,650 1490 No

03-09-92 3,060 1,657 1403 No

03-10-92 2,800 1,664 1136 No

03-11-92 2,550 1,671 879 No

03-12-92 2,750 1,679 1071 No

03-13-92 2,700 1,686 1014 No

03-14-92 2,690 1,693 997 No

03-15-92 2,800 1,700 1100 No

03-16-92 2,770 1,706 1064 No

03-17-92 3,050 1,712 1338 No

03-18-92 3,100 1,718 1382 No

03-19-92 2,760 1,724 1036 No

03-20-92 2,600 1,729 871 No

03-21-92 2,310 1,735 575 No

03-22-92 1,810 1,741 69 No

03-23-92 1,810 1,747 63 No

03-24-92 1,990 1,753 237 No

03-25-92 1,950 1,759 191 No

03-26-92 1,720 1,765 -45 Yes

03-27-92 1,760 1,771 -11 Yes

03-28-92 1,700 1,776 -76 Yes

03-29-92 1,660 1,782 -122 Yes

03-30-92 1,340 1,788 -448 Yes

03-31-92 1,580 1,794 -214 Yes

04-01-92 1,120 1,800 -680 Yes

04-02-92 1,160 1,807 -647 Yes

04-03-92 1,660 1,814 -154 Yes

Date

Daily mean 

streamflow

(ft3/s)

Instream 

flow

(ft3/s)

Difference

(ft3

/s) Excursion
24 Trends In Streamflow and Comparisons with Instream Flows in the Lower Puyallup River Basin, Washington

04-04-92 1,640 1,821 -181 Yes

04-05-92 1,990 1,829 161 No

04-06-92 2,230 1,836 394 No

04-07-92 2,070 1,843 227 No

04-08-92 1,790 1,850 -60 Yes

04-09-92 1,770 1,857 -87 Yes

04-10-92 2,000 1,864 136 Yes

04-11-92 1,870 1,871 -1 Yes

04-12-92 1,760 1,879 -119 Yes

04-13-92 1,830 1,886 -56 Yes

04-14-92 1,830 1,893 -63 Yes

04-15-92 1,920 1,900 20 No

04-16-92 1,950 1,906 44 No

04-17-92 4,600 1,913 2688 No

04-18-92 4,770 1,919 2851 No

04-19-92 3,290 1,925 1365 No

04-20-92 3,590 1,931 1659 No

04-21-92 2,780 1,938 843 No

04-22-92 2,440 1,944 496 No

04-23-92 2,280 1,950 330 No

04-24-92 2,390 1,956 434 No

04-25-92 2,290 1,963 328 No

04-26-92 1,810 1,969 -159 Yes

04-27-92 2,360 1,975 385 No

04-28-92 2,630 1,981 649 No

04-29-92 3,550 1,988 1563 No

04-30-92 4,720 1,994 2726 No

05-01-92 3,370 2,000 1370 No

05-02-92 2,070 2,000 70 No

05-03-92 1,730 2,000 -270 Yes

05-04-92 1,640 2,000 -360 Yes

05-05-92 1,640 2,000 -360 Yes

05-06-92 1,700 2,000 -300 Yes

05-07-92 2,150 2,000 150 No

05-08-92 2,370 2,000 370 No

05-09-92 2,470 2,000 470 No

05-10-92 2,360 2,000 360 No

05-11-92 2,090 2,000 90 No

05-12-92 2,150 2,000 150 No

05-13-92 2,040 2,000 40 No

05-14-92 2,260 2,000 260 No

05-15-92 2,160 2,000 160 No

05-16-92 2,070 2,000 70 No

05-17-92 1,120 2,000 -880 Yes

05-18-92 1,840 2,000 -160 Yes

05-19-92 1,210 2,000 -790 Yes

Date

Daily mean 

streamflow

(ft3/s)

Instream 

flow

(ft3/s)

Difference

(ft3/s) Excursion

05-20-92 1,550 2,000 -450 Yes

05-21-92 1,750 2,000 -250 Yes

05-22-92 1,800 2,000 -200 Yes

05-23-92 1,610 2,000 -390 Yes

05-24-92 1,620 2,000 -380 Yes

05-25-92 2,360 2,000 360 No

05-26-92 2,430 2,000 430 No

05-27-92 3,030 2,000 1030 No

05-28-92 2,470 2,000 470 No

05-29-92 2,380 2,000 380 No

05-30-92 2,120 2,000 120 No

05-31-92 1,900 2,000 -100 Yes

06-01-92 2,470 2,000 470 No

06-02-92 2,450 2,000 450 No

06-03-92 2,130 2,000 130 No

06-04-92 1,960 2,000 -40 Yes

06-05-92 1,890 2,000 -110 Yes

06-06-92 1,850 2,000 -150 Yes

06-07-92 1,500 2,000 -500 Yes

06-08-92 1,840 2,000 -160 Yes

06-09-92 1,950 2,000 -50 Yes

06-10-92 1,990 2,000 -10 Yes

06-11-92 1,790 2,000 -210 Yes

06-12-92 1,900 2,000 -100 Yes

06-13-92 2,070 2,000 70 No

06-14-92 1,980 2,000 -20 Yes

06-15-92 1,480 2,000 -520 Yes

06-16-92 1,630 2,000 -370 Yes

06-17-92 1,580 2,000 -420 Yes

06-18-92 1,580 2,000 -420 Yes

06-19-92 1,490 2,000 -510 Yes

06-20-92 1,590 2,000 -410 Yes

06-21-92 1,710 2,000 -290 Yes

06-22-92 2,380 2,000 380 No

06-23-92 2,190 2,000 190 No

06-24-92 2,660 2,000 660 No

06-25-92 2,370 2,000 370 No

06-26-92 2,520 2,000 520 No

06-27-92 2,260 2,000 260 No

06-28-92 2,380 2,000 380 No

06-29-92 3,200 2,000 1200 No

06-30-92 3,030 2,000 1030 No

07-01-92 1,770 2,000 -230 Yes

07-02-92 1,780 1,982 -202 Yes

07-03-92 1,440 1,964 -524 Yes

07-04-92 1,890 1,946 -56 Yes

Date

Daily mean 

streamflow

(ft3

/s)

Instream 

flow

(ft3/s)

Difference

(ft3/s) Excursion

Table 8. Daily mean streamflow and instream–flow values for gaging station Puyallup River at Puyallup (12101500) for 1992—Continued

[Difference is streamflow minus instream flow; excursion indicates streamflow is less than instream flow value for that day; ft3/s, cubic feet per second]
Table 8 25

07-05-92 3,130 1,929 1201 No

07-06-92 3,150 1,911 1239 No

07-07-92 2,560 1,893 667 No

07-08-92 2,340 1,875 465 No

07-09-92 2,180 1,857 323 No

07-10-92 1,880 1,839 41 No

07-11-92 1,620 1,821 -201 Yes

07-12-92 1,590 1,804 -214 Yes

07-13-92 1,640 1,786 -146 Yes

07-14-92 1,920 1,768 152 No

07-15-92 1,930 1,750 180 No

07-16-92 1,900 1,735 165 No

07-17-92 2,050 1,721 329 No

07-18-92 2,180 1,706 474 No

07-19-92 2,030 1,691 339 No

07-20-92 1,860 1,676 184 No

07-21-92 1,890 1,662 228 No

07-22-92 1,770 1,647 123 No

07-23-92 2,000 1,632 368 No

07-24-92 1,860 1,618 242 No

07-25-92 1,820 1,603 217 No

07-26-92 1,780 1,588 192 No

07-27-92 1,890 1,574 316 No

07-28-92 1,830 1,559 271 No

07-29-92 1,760 1,544 216 No

07-30-92 1,930 1,529 401 No

07-31-92 2,050 1,515 535 No

08-01-92 1,910 1,500 410 No

08-02-92 1,890 1,486 404 No

08-03-92 1,880 1,471 409 No

08-04-92 1,800 1,457 343 No

08-05-92 1,750 1,443 307 No

08-06-92 1,910 1,429 482 No

08-07-92 2,300 1,414 886 No

08-08-92 2,050 1,400 650 No

08-09-92 1,600 1,386 214 No

08-10-92 1,650 1,371 279 No

08-11-92 1,890 1,357 533 No

08-12-92 2,090 1,343 747 No

08-13-92 2,410 1,328 1082 No

08-14-92 2,510 1,314 1196 No

08-15-92 2,260 1,300 960 No

08-16-92 1,960 1,291 669 No

08-17-92 1,960 1,282 678 No

08-18-92 2,080 1,274 806 No

08-19-92 1,880 1,265 615 No

Date

Daily mean 

streamflow

(ft3/s)

Instream 

flow

(ft3/s)

Difference

(ft3/s) Excursion

08-20-92 1,740 1,256 484 No

08-21-92 1,760 1,247 513 No

08-22-92 1,520 1,238 282 No

08-23-92 1,140 1,229 -89 Yes

08-24-92 1,110 1,221 -111 Yes

08-25-92 1,030 1,212 -182 Yes

08-26-92 1,110 1,203 -93 Yes

08-27-92 1,270 1,194 76 No

08-28-92 1,300 1,185 115 No

08-29-92 1,150 1,176 -26 Yes

08-30-92 1,110 1,168 -58 Yes

08-31-92 1,130 1,159 -29 Yes

09-01-92 1,160 1,150 10 No

09-02-92 1,400 1,139 261 No

09-03-92 1,210 1,129 81 No

09-04-92 1,630 1,118 512 No

09-05-92 1,170 1,107 63 No

09-06-92 947 1,096 -149 Yes

09-07-92 921 1,086 -165 Yes

09-08-92 2,100 1,075 1025 No

09-09-92 2,610 1,064 1546 No

09-10-92 1,810 1,054 756 No

09-11-92 2,180 1,043 1137 No

09-12-92 1,810 1,032 778 No

09-13-92 1,670 1,021 649 No

09-14-92 995 1,011 -16 Yes

09-15-92 765 1,000 -235 Yes

09-16-92 842 1,000 -158 Yes

09-17-92 799 1,000 -201 Yes

09-18-92 740 1,000 -260 Yes

09-19-92 683 1,000 -317 Yes

09-20-92 828 1,000 -172 Yes

09-21-92 1,400 1,000 400 No

09-22-92 1,570 1,000 570 No

09-23-92 1,680 1,000 680 No

09-24-92 3,670 1,000 2670 No

09-25-92 4,270 1,000 3270 No

09-26-92 2,450 1,000 1450 No

09-27-92 2,340 1,000 1340 No

09-28-92 1,570 1,000 570 No

09-29-92 1,670 1,000 670 No

09-30-92 1,780 1,000 780 No

10-01-92 1,750 1,000 750 No

10-02-92 1,730 1,000 730 No

10-03-92 1,970 1,000 970 No

10-04-92 1,780 1,000 780 No

Date

Daily mean 

streamflow

(ft3/s)

Instream 

flow

(ft3/s)

Difference

(ft3/s) Excursion

Table 8. Daily mean streamflow and instream–flow values for gaging station Puyallup River at Puyallup (12101500) for 1992—Continued

[Difference is streamflow minus instream flow; excursion indicates streamflow is less than instream flow value for that day; ft3/s, cubic feet per second]
26 Trends In Streamflow and Comparisons with Instream Flows in the Lower Puyallup River Basin, Washington

10-05-92 1,230 1,000 230 No

10-06-92 1,110 1,000 110 No

10-07-92 1,070 1,000 70 No

10-08-92 1,200 1,000 200 No

10-09-92 1,460 1,000 460 No

10-10-92 1,490 1,000 490 No

10-11-92 1,530 1,000 530 No

10-12-92 1,570 1,000 570 No

10-13-92 1,900 1,000 900 No

10-14-92 1,800 1,000 800 No

10-15-92 1,370 1,000 370 No

10-16-92 1,440 1,000 440 No

10-17-92 1,650 1,000 650 No

10-18-92 1,640 1,000 640 No

10-19-92 1,830 1,000 830 No

10-20-92 1,910 1,000 910 No

10-21-92 1,800 1,000 800 No

10-22-92 1,680 1,000 680 No

10-23-92 1,760 1,000 760 No

10-24-92 1,020 1,000 20 No

10-25-92 904 1,000 -96 Yes

10-26-92 1,270 1,000 270 No

10-27-92 1,240 1,000 240 No

10-28-92 1,240 1,000 240 No

10-29-92 1,300 1,000 300 No

10-30-92 1,340 1,000 340 No

10-31-92 1,280 1,000 280 No

11-01-92 1,420 1,000 420 No

11-02-92 1,620 1,007 613 No

11-03-92 1,740 1,014 726 No

11-04-92 2,070 1,021 1049 No

11-05-92 2,300 1,029 1271 No

11-06-92 1,990 1,036 954 No

11-07-92 2,560 1,043 1517 No

11-08-92 2,740 1,050 1690 No

11-09-92 2,740 1,057 1683 No

11-10-92 2,280 1,064 1216 No

11-11-92 2,580 1,071 1509 No

11-12-92 3,830 1,079 2751 No

11-13-92 3,030 1,086 1944 No

11-14-92 2,680 1,093 1587 No

11-15-92 2,430 1,100 1330 No

11-16-92 2,240 1,106 1134 No

11-17-92 2,230 1,113 1118 No

Date

Daily mean 

streamflow

(ft3/s)

Instream 

flow

(ft3/s)

Difference

(ft3

/s) Excursion

11-18-92 2,480 1,119 1361 No

11-19-92 1,890 1,125 765 No

11-20-92 1,660 1,131 529 No

11-21-92 2,220 1,138 1083 No

11-22-92 5,120 1,144 3976 No

11-23-92 3,420 1,150 2270 No

11-24-92 3,150 1,156 1994 No

11-25-92 3,200 1,163 2038 No

11-26-92 3,020 1,169 1851 No

11-27-92 3,340 1,175 2165 No

11-28-92 3,680 1,181 2499 No

11-29-92 3,380 1,188 2193 No

11-30-92 4,040 1,194 2846 No

12-01-92 4,000 1,200 2800 No

12-02-92 3,630 1,207 2423 No

12-03-92 3,260 1,214 2046 No

12-04-92 3,010 1,221 1789 No

12-05-92 2,840 1,229 1611 No

12-06-92 2,730 1,236 1494 No

12-07-92 2,620 1,243 1377 No

12-08-92 2,550 1,250 1300 No

12-09-92 2,690 1,257 1433 No

12-10-92 2,900 1,264 1636 No

12-11-92 2,960 1,271 1689 No

12-12-92 2,760 1,279 1481 No

12-13-92 2,610 1,286 1324 No

12-14-92 3,490 1,293 2197 No

12-15-92 4,070 1,300 2770 No

12-16-92 3,370 1,306 2064 No

12-17-92 2,860 1,312 1548 No

12-18-92 2,320 1,318 1002 No

12-19-92 1,310 1,324 -14 Yes

12-20-92 2,660 1,329 1331 No

12-21-92 2,810 1,335 1475 No

12-22-92 2,560 1,341 1219 No

12-23-92 2,650 1,347 1303 No

12-24-92 1,830 1,353 477 No

12-25-92 2,050 1,359 691 No

12-26-92 2,060 1,365 695 No

12-27-92 1,290 1,371 -81 Yes

12-28-92 1,150 1,376 -226 Yes

12-29-92 1,870 1,382 488 No

12-30-92 1,830 1,388 442 No

12-31-92 2,140 1,394 746 No

Date

Daily mean 

streamflow

(ft3/s)

Instream 

flow

(ft3/s)

Difference

(ft3

/s) Excursion

Table 8. Daily mean streamflow and instream–flow values for gaging station Puyallup River at Puyallup (12101500) for 1992—Continued

[Difference is streamflow minus instream flow; excursion indicates streamflow is less than instream flow value for that day; ft3/s, cubic feet per second]
Table 9 27

Date Time

Unit 

streamflow 

(ft3

/s)

Instream 

flow

(ft3/s)

Difference

(ft3/s) Excursion

10-26-92 15 790 1,000 -210 Yes

10-26-92 30 790 1,000 -210 Yes

10-26-92 45 790 1,000 -210 Yes

10-26-92 60 790 1,000 -210 Yes

10-26-92 75 790 1,000 -210 Yes

10-26-92 90 790 1,000 -210 Yes

10-26-92 105 790 1,000 -210 Yes

10-26-92 120 790 1,000 -210 Yes

10-26-92 135 797 1,000 -203 Yes

10-26-92 150 797 1,000 -203 Yes

10-26-92 165 804 1,000 -196 Yes

10-26-92 180 804 1,000 -196 Yes

10-26-92 195 811 1,000 -189 Yes

10-26-92 210 811 1,000 -189 Yes

10-26-92 225 811 1,000 -189 Yes

10-26-92 240 811 1,000 -189 Yes

10-26-92 255 819 1,000 -181 Yes

10-26-92 270 819 1,000 -181 Yes

10-26-92 285 819 1,000 -181 Yes

10-26-92 300 819 1,000 -181 Yes

10-26-92 315 819 1,000 -181 Yes

10-26-92 330 819 1,000 -181 Yes

10-26-92 345 819 1,000 -181 Yes

10-26-92 360 819 1,000 -181 Yes

10-26-92 375 819 1,000 -181 Yes

10-26-92 390 819 1,000 -181 Yes

10-26-92 405 819 1,000 -181 Yes

10-26-92 420 819 1,000 -181 Yes

10-26-92 435 819 1,000 -181 Yes

10-26-92 450 819 1,000 -181 Yes

10-26-92 465 811 1,000 -189 Yes

10-26-92 480 826 1,000 -174 Yes

10-26-92 495 854 1,000 -146 Yes

10-26-92 510 906 1,000 -94 Yes

10-26-92 525 981 1,000 -19 Yes

10-26-92 540 1,070 1,000 70 No

10-26-92 555 1,160 1,000 160 No

10-26-92 570 1,250 1,000 250 No

10-26-92 585 1,340 1,000 340 No

10-26-92 600 1,410 1,000 410 No

10-26-92 615 1,470 1,000 470 No

10-26-92 630 1,510 1,000 510 No

10-26-92 645 1,540 1,000 540 No

10-26-92 660 1,550 1,000 550 No

10-26-92 675 1,550 1,000 550 No

10-26-92 690 1,550 1,000 550 No

10-26-92 705 1,550 1,000 550 No

10-26-92 720 1,550 1,000 550 No

10-26-92 735 1,550 1,000 550 No

10-26-92 750 1,550 1,000 550 No

10-26-92 765 1,550 1,000 550 No

10-26-92 780 1,560 1,000 560 No

10-26-92 795 1,560 1,000 560 No

10-26-92 810 1,560 1,000 560 No

10-26-92 825 1,560 1,000 560 No

10-26-92 840 1,560 1,000 560 No

10-26-92 855 1,560 1,000 560 No

10-26-92 870 1,560 1,000 560 No

10-26-92 885 1,560 1,000 560 No

10-26-92 900 1,560 1,000 560 No

10-26-92 915 1,560 1,000 560 No

10-26-92 930 1,560 1,000 560 No

10-26-92 945 1,560 1,000 560 No

10-26-92 960 1,550 1,000 550 No

10-26-92 975 1,550 1,000 550 No

10-26-92 990 1,550 1,000 550 No

10-26-92 1,005 1,540 1,000 540 No

10-26-92 1,020 1,540 1,000 540 No

10-26-92 1,035 1,540 1,000 540 No

10-26-92 1,050 1,550 1,000 550 No

10-26-92 1,065 1,550 1,000 550 No

10-26-92 1,080 1,560 1,000 560 No

10-26-92 1,095 1,560 1,000 560 No

10-26-92 1,110 1,570 1,000 570 No

10-26-92 1,125 1,570 1,000 570 No

10-26-92 1,140 1,570 1,000 570 No

10-26-92 1,155 1,580 1,000 580 No

10-26-92 1,170 1,580 1,000 580 No

10-26-92 1,185 1,580 1,000 580 No

10-26-92 1,200 1,580 1,000 580 No

Date Time

Unit 

streamflow 

(ft3/s)

Instream 

flow

(ft3/s)

Difference

(ft3/s) Excursion

Table 9. Unit-streamflow and instream-flow values for gaging station Puyallup River at Puyallup (12101500) from October 26 through November 10, 1992

[Time is the number of minutes past midnight; difference is streamflow minus instream flow; excursion indicates streamflow is less than instream flow value for 

that day; ft3/s, cubic feet per second]
28 Trends In Streamflow and Comparisons with Instream Flows in the Lower Puyallup River Basin, Washington

10-26-92 1,215 1,580 1,000 580 No

10-26-92 1,230 1,580 1,000 580 No

10-26-92 1,245 1,580 1,000 580 No

10-26-92 1,260 1,580 1,000 580 No

10-26-92 1,275 1,580 1,000 580 No

10-26-92 1,290 1,570 1,000 570 No

10-26-92 1,305 1,570 1,000 570 No

10-26-92 1,320 1,570 1,000 570 No

10-26-92 1,335 1,570 1,000 570 No

10-26-92 1,350 1,570 1,000 570 No

10-26-92 1,365 1,570 1,000 570 No

10-26-92 1,380 1,570 1,000 570 No

10-26-92 1,395 1,560 1,000 560 No

10-26-92 1,410 1,560 1,000 560 No

10-26-92 1,425 1,540 1,000 540 No

10-26-92 1,440 1,520 1,000 520 No

10-27-92 15 1,460 1,000 460 No

10-27-92 30 1,400 1,000 400 No

10-27-92 45 1,290 1,000 290 No

10-27-92 60 1,160 1,000 160 No

10-27-92 75 1,060 1,000 60 No

10-27-92 90 973 1,000 -27 Yes

10-27-92 105 906 1,000 -94 Yes

10-27-92 120 854 1,000 -146 Yes

10-27-92 135 819 1,000 -181 Yes

10-27-92 150 797 1,000 -203 Yes

10-27-92 165 783 1,000 -217 Yes

10-27-92 180 769 1,000 -231 Yes

10-27-92 195 762 1,000 -238 Yes

10-27-92 210 756 1,000 -244 Yes

10-27-92 225 749 1,000 -251 Yes

10-27-92 240 742 1,000 -258 Yes

10-27-92 255 742 1,000 -258 Yes

10-27-92 270 742 1,000 -258 Yes

10-27-92 285 742 1,000 -258 Yes

10-27-92 300 742 1,000 -258 Yes

10-27-92 315 742 1,000 -258 Yes

10-27-92 330 742 1,000 -258 Yes

10-27-92 345 742 1,000 -258 Yes

10-27-92 360 742 1,000 -258 Yes

10-27-92 375 742 1,000 -258 Yes

Date Time

Unit 

streamflow 

(ft3/s)

Instream 

flow

(ft3/s)

Difference

(ft3/s) Excursion

10-27-92 390 742 1,000 -258 Yes

10-27-92 405 742 1,000 -258 Yes

10-27-92 420 742 1,000 -258 Yes

10-27-92 435 742 1,000 -258 Yes

10-27-92 450 742 1,000 -258 Yes

10-27-92 465 742 1,000 -258 Yes

10-27-92 480 742 1,000 -258 Yes

10-27-92 495 742 1,000 -258 Yes

10-27-92 510 749 1,000 -251 Yes

10-27-92 525 797 1,000 -203 Yes

10-27-92 540 876 1,000 -124 Yes

10-27-92 555 966 1,000 -34 Yes

10-27-92 570 1,070 1,000 70 No

10-27-92 585 1,190 1,000 190 No

10-27-92 600 1,300 1,000 300 No

10-27-92 615 1,370 1,000 370 No

10-27-92 630 1,430 1,000 430 No

10-27-92 645 1,470 1,000 470 No

10-27-92 660 1,500 1,000 500 No

10-27-92 675 1,510 1,000 510 No

10-27-92 690 1,510 1,000 510 No

10-27-92 705 1,510 1,000 510 No

10-27-92 720 1,510 1,000 510 No

10-27-92 735 1,510 1,000 510 No

10-27-92 750 1,510 1,000 510 No

10-27-92 765 1,510 1,000 510 No

10-27-92 780 1,510 1,000 510 No

10-27-92 795 1,520 1,000 520 No

10-27-92 810 1,520 1,000 520 No

10-27-92 825 1,520 1,000 520 No

10-27-92 840 1,520 1,000 520 No

10-27-92 855 1,520 1,000 520 No

10-27-92 870 1,520 1,000 520 No

10-27-92 885 1,520 1,000 520 No

10-27-92 900 1,520 1,000 520 No

10-27-92 915 1,520 1,000 520 No

10-27-92 930 1,520 1,000 520 No

10-27-92 945 1,520 1,000 520 No

10-27-92 960 1,520 1,000 520 No

10-27-92 975 1,520 1,000 520 No

10-27-92 990 1,520 1,000 520 No

Date Time

Unit 

streamflow 

(ft3/s)

Instream 

flow

(ft3/s)

Difference

(ft3/s) Excursion

Table 9. Unit-streamflow and instream-flow values for gaging station Puyallup River at Puyallup (12101500) from October 26 through 

November 10, 1992—Continued

[Time is the number of minutes past midnight; difference is streamflow minus instream flow; excursion indicates streamflow is less than instream flow value for 

that day; ft3/s, cubic feet per second]
Table 9 29

10-27-92 1,005 1,520 1,000 520 No

10-27-92 1,020 1,520 1,000 520 No

10-27-92 1,035 1,520 1,000 520 No

10-27-92 1,050 1,520 1,000 520 No

10-27-92 1,065 1,520 1,000 520 No

10-27-92 1,080 1,520 1,000 520 No

10-27-92 1,095 1,520 1,000 520 No

10-27-92 1,110 1,520 1,000 520 No

10-27-92 1,125 1,520 1,000 520 No

10-27-92 1,140 1,520 1,000 520 No

10-27-92 1,155 1,520 1,000 520 No

10-27-92 1,170 1,520 1,000 520 No

10-27-92 1,185 1,510 1,000 510 No

10-27-92 1,200 1,510 1,000 510 No

10-27-92 1,215 1,510 1,000 510 No

10-27-92 1,230 1,510 1,000 510 No

10-27-92 1,245 1,510 1,000 510 No

10-27-92 1,260 1,520 1,000 520 No

10-27-92 1,275 1,520 1,000 520 No

10-27-92 1,290 1,520 1,000 520 No

10-27-92 1,305 1,520 1,000 520 No

10-27-92 1,320 1,520 1,000 520 No

10-27-92 1,335 1,520 1,000 520 No

10-27-92 1,350 1,520 1,000 520 No

10-27-92 1,365 1,510 1,000 510 No

10-27-92 1,380 1,510 1,000 510 No

10-27-92 1,395 1,510 1,000 510 No

10-27-92 1,410 1,500 1,000 500 No

10-27-92 1,425 1,480 1,000 480 No

10-27-92 1,440 1,450 1,000 450 No

10-28-92 15 1,390 1,000 390 No

10-28-92 30 1,320 1,000 320 No

10-28-92 45 1,250 1,000 250 No

10-28-92 60 1,150 1,000 150 No

10-28-92 75 1,050 1,000 50 No

10-28-92 90 966 1,000 -34 Yes

10-28-92 105 891 1,000 -109 Yes

10-28-92 120 833 1,000 -167 Yes

10-28-92 135 790 1,000 -210 Yes

10-28-92 150 762 1,000 -238 Yes

10-28-92 165 756 1,000 -244 Yes

Date Time

Unit 

streamflow 

(ft3

/s)

Instream 

flow

(ft3/s)

Difference

(ft3/s) Excursion

10-28-92 180 749 1,000 -251 Yes

10-28-92 195 742 1,000 -258 Yes

10-28-92 210 742 1,000 -258 Yes

10-28-92 225 735 1,000 -265 Yes

10-28-92 240 735 1,000 -265 Yes

10-28-92 255 728 1,000 -272 Yes

10-28-92 270 728 1,000 -272 Yes

10-28-92 285 728 1,000 -272 Yes

10-28-92 300 728 1,000 -272 Yes

10-28-92 315 728 1,000 -272 Yes

10-28-92 330 728 1,000 -272 Yes

10-28-92 345 728 1,000 -272 Yes

10-28-92 360 728 1,000 -272 Yes

10-28-92 375 728 1,000 -272 Yes

10-28-92 390 728 1,000 -272 Yes

10-28-92 405 728 1,000 -272 Yes

10-28-92 420 721 1,000 -279 Yes

10-28-92 435 721 1,000 -279 Yes

10-28-92 450 721 1,000 -279 Yes

10-28-92 465 721 1,000 -279 Yes

10-28-92 480 728 1,000 -272 Yes

10-28-92 495 783 1,000 -217 Yes

10-28-92 510 876 1,000 -124 Yes

10-28-92 525 981 1,000 -19 Yes

10-28-92 540 1,090 1,000 90 No

10-28-92 555 1,200 1,000 200 No

10-28-92 570 1,300 1,000 300 No

10-28-92 585 1,370 1,000 370 No

10-28-92 600 1,420 1,000 420 No

10-28-92 615 1,450 1,000 450 No

10-28-92 630 1,460 1,000 460 No

10-28-92 645 1,470 1,000 470 No

10-28-92 660 1,470 1,000 470 No

10-28-92 675 1,470 1,000 470 No

10-28-92 690 1,470 1,000 470 No

10-28-92 705 1,460 1,000 460 No

10-28-92 720 1,450 1,000 450 No

10-28-92 735 1,450 1,000 450 No

10-28-92 750 1,450 1,000 450 No

10-28-92 765 1,450 1,000 450 No

10-28-92 780 1,450 1,000 450 No

Date Time

Unit 

streamflow 

(ft3

/s)

Instream 

flow

(ft3/s)

Difference

(ft3/s) Excursion

Table 9. Unit-streamflow and instream-flow values for gaging station Puyallup River at Puyallup (12101500) from October 26 through 

November 10, 1992—Continued

[Time is the number of minutes past midnight; difference is streamflow minus instream flow; excursion indicates streamflow is less than instream flow value for 
30 Trends In Streamflow and Comparisons with Instream Flows in the Lower Puyallup River Basin, Washington

10-28-92 795 1,450 1,000 450 No

10-28-92 810 1,460 1,000 460 No

10-28-92 825 1,470 1,000 470 No

10-28-92 840 1,470 1,000 470 No

10-28-92 855 1,500 1,000 500 No

10-28-92 870 1,500 1,000 500 No

10-28-92 885 1,500 1,000 500 No

10-28-92 900 1,500 1,000 500 No

10-28-92 915 1,500 1,000 500 No

10-28-92 930 1,500 1,000 500 No

10-28-92 945 1,500 1,000 500 No

10-28-92 960 1,500 1,000 500 No

10-28-92 975 1,500 1,000 500 No

10-28-92 990 1,500 1,000 500 No

10-28-92 1,005 1,500 1,000 500 No

10-28-92 1,020 1,500 1,000 500 No

10-28-92 1,035 1,500 1,000 500 No

10-28-92 1,050 1,500 1,000 500 No

10-28-92 1,065 1,500 1,000 500 No

10-28-92 1,080 1,450 1,000 450 No

10-28-92 1,095 1,460 1,000 460 No

10-28-92 1,110 1,470 1,000 470 No

10-28-92 1,125 1,480 1,000 480 No

10-28-92 1,140 1,490 1,000 490 No

10-28-92 1,155 1,500 1,000 500 No

10-28-92 1,170 1,500 1,000 500 No

10-28-92 1,185 1,500 1,000 500 No

10-28-92 1,200 1,500 1,000 500 No

10-28-92 1,215 1,500 1,000 500 No

10-28-92 1,230 1,500 1,000 500 No

10-28-92 1,245 1,500 1,000 500 No

10-28-92 1,260 1,500 1,000 500 No

10-28-92 1,275 1,500 1,000 500 No

10-28-92 1,290 1,500 1,000 500 No

10-28-92 1,305 1,500 1,000 500 No

10-28-92 1,320 1,490 1,000 490 No

10-28-92 1,335 1,490 1,000 490 No

10-28-92 1,350 1,490 1,000 490 No

10-28-92 1,365 1,490 1,000 490 No

10-28-92 1,380 1,490 1,000 490 No

10-28-92 1,395 1,490 1,000 490 No

Date Time

Unit 

streamflow 

(ft3/s)

Instream 

flow

(ft3/s)

Difference

(ft3/s) Excursion

10-28-92 1,410 1,490 1,000 490 No

10-28-92 1,425 1,490 1,000 490 No

10-28-92 1,440 1,490 1,000 490 No

10-29-92 15 1,490 1,000 490 No

10-29-92 30 1,490 1,000 490 No

10-29-92 45 1,450 1,000 450 No

10-29-92 60 1,400 1,000 400 No

10-29-92 75 1,310 1,000 310 No

10-29-92 90 1,220 1,000 220 No

10-29-92 105 1,110 1,000 110 No

10-29-92 120 1,020 1,000 20 No

10-29-92 135 943 1,000 -57 Yes

10-29-92 150 876 1,000 -124 Yes

10-29-92 165 826 1,000 -174 Yes

10-29-92 180 783 1,000 -217 Yes

10-29-92 195 756 1,000 -244 Yes

10-29-92 210 735 1,000 -265 Yes

10-29-92 225 733 1,000 -267 Yes

10-29-92 240 731 1,000 -269 Yes

10-29-92 255 730 1,000 -270 Yes

10-29-92 270 728 1,000 -272 Yes

10-29-92 285 726 1,000 -274 Yes

10-29-92 300 724 1,000 -276 Yes

10-29-92 315 722 1,000 -278 Yes

10-29-92 330 721 1,000 -279 Yes

10-29-92 345 719 1,000 -281 Yes

10-29-92 360 717 1,000 -283 Yes

10-29-92 375 715 1,000 -285 Yes

10-29-92 390 713 1,000 -287 Yes

10-29-92 405 712 1,000 -288 Yes

10-29-92 420 710 1,000 -290 Yes

10-29-92 435 708 1,000 -292 Yes

10-29-92 450 804 1,000 -196 Yes

10-29-92 465 958 1,000 -42 Yes

10-29-92 480 1,120 1,000 120 No

10-29-92 495 1,250 1,000 250 No

10-29-92 510 1,360 1,000 360 No

10-29-92 525 1,420 1,000 420 No

10-29-92 540 1,450 1,000 450 No

10-29-92 555 1,480 1,000 480 No

10-29-92 570 1,490 1,000 490 No

Date Time

Unit 

streamflow 

(ft3/s)

Instream 

flow

(ft3/s)

Difference

(ft3/s) Excursion

Table 9. Unit-streamflow and instream-flow values for gaging station Puyallup River at Puyallup (12101500) from October 26 through 

November 10, 1992—Continued

[Time is the number of minutes past midnight; difference is streamflow minus instream flow; excursion indicates streamflow is less than instream flow value for 

that day; ft3/s, cubic feet per second]
Table 9 31

10-29-92 585 1,500 1,000 500 No

10-29-92 600 1,500 1,000 500 No

10-29-92 615 1,500 1,000 500 No

10-29-92 630 1,500 1,000 500 No

10-29-92 645 1,500 1,000 500 No

10-29-92 660 1,500 1,000 500 No

10-29-92 675 1,500 1,000 500 No

10-29-92 690 1,500 1,000 500 No

10-29-92 705 1,500 1,000 500 No

10-29-92 720 1,500 1,000 500 No

10-29-92 735 1,500 1,000 500 No

10-29-92 750 1,500 1,000 500 No

10-29-92 765 1,500 1,000 500 No

10-29-92 780 1,500 1,000 500 No

10-29-92 795 1,500 1,000 500 No

10-29-92 810 1,500 1,000 500 No

10-29-92 825 1,520 1,000 520 No

10-29-92 840 1,520 1,000 520 No

10-29-92 855 1,520 1,000 520 No

10-29-92 870 1,520 1,000 520 No

10-29-92 885 1,520 1,000 520 No

10-29-92 900 1,520 1,000 520 No

10-29-92 915 1,520 1,000 520 No

10-29-92 930 1,510 1,000 510 No

10-29-92 945 1,510 1,000 510 No

10-29-92 960 1,500 1,000 500 No

10-29-92 975 1,500 1,000 500 No

10-29-92 990 1,500 1,000 500 No

10-29-92 1,005 1,500 1,000 500 No

10-29-92 1,020 1,490 1,000 490 No

10-29-92 1,035 1,490 1,000 490 No

10-29-92 1,050 1,490 1,000 490 No

10-29-92 1,065 1,490 1,000 490 No

10-29-92 1,080 1,500 1,000 500 No

10-29-92 1,095 1,510 1,000 510 No

10-29-92 1,110 1,520 1,000 520 No

10-29-92 1,125 1,530 1,000 530 No

10-29-92 1,140 1,530 1,000 530 No

10-29-92 1,155 1,530 1,000 530 No

10-29-92 1,170 1,540 1,000 540 No

10-29-92 1,185 1,540 1,000 540 No

Date Time

Unit 

streamflow 

(ft3/s)

Instream 

flow

(ft3/s)

Difference

(ft3/s) Excursion

10-29-92 1,200 1,540 1,000 540 No

10-29-92 1,215 1,540 1,000 540 No

10-29-92 1,230 1,540 1,000 540 No

10-29-92 1,245 1,540 1,000 540 No

10-29-92 1,260 1,540 1,000 540 No

10-29-92 1,275 1,530 1,000 530 No

10-29-92 1,290 1,530 1,000 530 No

10-29-92 1,305 1,520 1,000 520 No

10-29-92 1,320 1,520 1,000 520 No

10-29-92 1,335 1,520 1,000 520 No

10-29-92 1,350 1,520 1,000 520 No

10-29-92 1,365 1,520 1,000 520 No

10-29-92 1,380 1,530 1,000 530 No

10-29-92 1,395 1,530 1,000 530 No

10-29-92 1,410 1,530 1,000 530 No

10-29-92 1,425 1,530 1,000 530 No

10-29-92 1,440 1,530 1,000 530 No

10-30-92 15 1,430 1,000 430 No

10-30-92 30 1,460 1,000 460 No

10-30-92 45 1,490 1,000 490 No

10-30-92 60 1,450 1,000 450 No

10-30-92 75 1,353 1,000 353 No

10-30-92 90 1,257 1,000 257 No

10-30-92 105 1160 1,000 160 No

10-30-92 120 1,078 1,000 78 No

10-30-92 135 995 1,000 -5 Yes

10-30-92 150 913 1,000 -87 Yes

10-30-92 165 854 1,000 -146 Yes

10-30-92 180 850 1,000 -150 Yes

10-30-92 195 846 1,000 -154 Yes

10-30-92 210 842 1,000 -158 Yes

10-30-92 225 838 1,000 -162 Yes

10-30-92 240 835 1,000 -165 Yes

10-30-92 255 831 1,000 -169 Yes

10-30-92 270 827 1,000 -173 Yes

10-30-92 285 823 1,000 -177 Yes

10-30-92 300 819 1,000 -181 Yes

10-30-92 315 815 1,000 -185 Yes

10-30-92 330 811 1,000 -189 Yes

10-30-92 345 807 1,000 -193 Yes

10-30-92 360 803 1,000 -197 Yes

Date Time

Unit 

streamflow 

(ft3/s)

Instream 

flow

(ft3/s)

Difference

(ft3/s) Excursion

Table 9. Unit-streamflow and instream-flow values for gaging station Puyallup River at Puyallup (12101500) from October 26 through 

November 10, 1992—Continued

[Time is the number of minutes past midnight; difference is streamflow minus instream flow; excursion indicates streamflow is less than instream flow value for 

that day; ft3/s, cubic feet per second]
32 Trends In Streamflow and Comparisons with Instream Flows in the Lower Puyallup River Basin, Washington

10-30-92 375 799 1,000 -201 Yes

10-30-92 390 795 1,000 -205 Yes

10-30-92 405 791 1,000 -209 Yes

10-30-92 420 787 1,000 -213 Yes

10-30-92 435 783 1,000 -217 Yes

10-30-92 450 935 1,000 -65 Yes

10-30-92 465 1,100 1,000 100 No

10-30-92 480 1,240 1,000 240 No

10-30-92 495 1,330 1,000 330 No

10-30-92 510 1,400 1,000 400 No

10-30-92 525 1,450 1,000 450 No

10-30-92 540 1,470 1,000 470 No

10-30-92 555 1,490 1,000 490 No

10-30-92 570 1,490 1,000 490 No

10-30-92 585 1,500 1,000 500 No

10-30-92 600 1,500 1,000 500 No

10-30-92 615 1,500 1,000 500 No

10-30-92 630 1,500 1,000 500 No

10-30-92 645 1,500 1,000 500 No

10-30-92 660 1,500 1,000 500 No

10-30-92 675 1,500 1,000 500 No

10-30-92 690 1,500 1,000 500 No

10-30-92 705 1,500 1,000 500 No

10-30-92 720 1,500 1,000 500 No

10-30-92 735 1,500 1,000 500 No

10-30-92 750 1,500 1,000 500 No

10-30-92 765 1,500 1,000 500 No

10-30-92 780 1,510 1,000 510 No

10-30-92 795 1,520 1,000 520 No

10-30-92 810 1,520 1,000 520 No

10-30-92 825 1,520 1,000 520 No

10-30-92 840 1,530 1,000 530 No

10-30-92 855 1,530 1,000 530 No

10-30-92 870 1,530 1,000 530 No

10-30-92 885 1,530 1,000 530 No

10-30-92 900 1,530 1,000 530 No

10-30-92 915 1,530 1,000 530 No

10-30-92 930 1,540 1,000 540 No

10-30-92 945 1,540 1,000 540 No

10-30-92 960 1,540 1,000 540 No

10-30-92 975 1,540 1,000 540 No

Date Time

Unit 

streamflow 

(ft3/s)

Instream 

flow

(ft3/s)

Difference

(ft3/s) Excursion

10-30-92 990 1,540 1,000 540 No

10-30-92 1,005 1,540 1,000 540 No

10-30-92 1,020 1,540 1,000 540 No

10-30-92 1,035 1,540 1,000 540 No

10-30-92 1,050 1,540 1,000 540 No

10-30-92 1,065 1,540 1,000 540 No

10-30-92 1,080 1,540 1,000 540 No

10-30-92 1,095 1,540 1,000 540 No

10-30-92 1,110 1,540 1,000 540 No

10-30-92 1,125 1,540 1,000 540 No

10-30-92 1,140 1,540 1,000 540 No

10-30-92 1,155 1,540 1,000 540 No

10-30-92 1,170 1,540 1,000 540 No

10-30-92 1,185 1,540 1,000 540 No

10-30-92 1,200 1,540 1,000 540 No

10-30-92 1,215 1,540 1,000 540 No

10-30-92 1,230 1,540 1,000 540 No

10-30-92 1,245 1,540 1,000 540 No

10-30-92 1,260 1,540 1,000 540 No

10-30-92 1,275 1,540 1,000 540 No

10-30-92 1,290 1,540 1,000 540 No

10-30-92 1,305 1,540 1,000 540 No

10-30-92 1,320 1,540 1,000 540 No

10-30-92 1,335 1,540 1,000 540 No

10-30-92 1,350 1,540 1,000 540 No

10-30-92 1,365 1,540 1,000 540 No

10-30-92 1,380 1,540 1,000 540 No

10-30-92 1,395 1,540 1,000 540 No

10-30-92 1,410 1,540 1,000 540 No

10-30-92 1,425 1,540 1,000 540 No

10-30-92 1,440 1,540 1,000 540 No

10-31-92 15 1,517 1,000 517 No

10-31-92 30 1,493 1,000 493 No

10-31-92 45 1470 1,000 470 No

10-31-92 60 1400 1,000 400 No

10-31-92 75 1,297 1,000 297 No

10-31-92 90 1,193 1,000 193 No

10-31-92 105 1090 1,000 90 No

10-31-92 120 1,016 1,000 16 No

10-31-92 135 943 1,000 -57 Yes

10-31-92 150 869 1,000 -131 Yes

Date Time

Unit 

streamflow 

(ft3/s)

Instream 

flow

(ft3/s)

Difference

(ft3/s) Excursion

Table 9. Unit-streamflow and instream-flow values for gaging station Puyallup River at Puyallup (12101500) from October 26 through 

November 10, 1992—Continued

[Time is the number of minutes past midnight; difference is streamflow minus instream flow; excursion indicates streamflow is less than instream flow value 

for that day; ft3/s, cubic feet per second]
Table 9 33

10-31-92 165 826 1,000 -174 Yes

10-31-92 180 794 1,000 -206 Yes

10-31-92 195 762 1,000 -238 Yes

10-31-92 210 749 1,000 -251 Yes

10-31-92 225 728 1,000 -272 Yes

10-31-92 240 715 1,000 -285 Yes

10-31-92 255 708 1,000 -292 Yes

10-31-92 270 708 1,000 -292 Yes

10-31-92 285 701 1,000 -299 Yes

10-31-92 300 701 1,000 -299 Yes

10-31-92 315 701 1,000 -299 Yes

10-31-92 330 701 1,000 -299 Yes

10-31-92 345 698 1,000 -302 Yes

10-31-92 360 695 1,000 -305 Yes

10-31-92 375 688 1,000 -312 Yes

10-31-92 390 688 1,000 -312 Yes

10-31-92 405 688 1,000 -312 Yes

10-31-92 420 688 1,000 -312 Yes

10-31-92 435 688 1,000 -312 Yes

10-31-92 450 688 1,000 -312 Yes

10-31-92 465 688 1,000 -312 Yes

10-31-92 480 688 1,000 -312 Yes

10-31-92 495 688 1,000 -312 Yes

10-31-92 510 688 1,000 -312 Yes

10-31-92 525 695 1,000 -305 Yes

10-31-92 540 742 1,000 -258 Yes

10-31-92 555 862 1,000 -138 Yes

10-31-92 570 1,030 1,000 30 No

10-31-92 585 1,200 1,000 200 No

10-31-92 600 1,310 1,000 310 No

10-31-92 615 1,400 1,000 400 No

10-31-92 630 1,450 1,000 450 No

10-31-92 645 1,490 1,000 490 No

10-31-92 660 1,510 1,000 510 No

10-31-92 675 1,530 1,000 530 No

10-31-92 690 1,540 1,000 540 No

10-31-92 705 1,540 1,000 540 No

10-31-92 720 1,540 1,000 540 No

10-31-92 735 1,550 1,000 550 No

10-31-92 750 1,550 1,000 550 No

10-31-92 765 1,550 1,000 550 No

Date Time

Unit 

streamflow 

(ft3/s)

Instream 

flow

(ft3/s)

Difference

(ft3/s) Excursion

10-31-92 780 1,550 1,000 550 No

10-31-92 795 1,550 1,000 550 No

10-31-92 810 1,550 1,000 550 No

10-31-92 825 1,550 1,000 550 No

10-31-92 840 1,550 1,000 550 No

10-31-92 855 1,550 1,000 550 No

10-31-92 870 1,540 1,000 540 No

10-31-92 885 1,540 1,000 540 No

10-31-92 900 1,540 1,000 540 No

10-31-92 915 1,540 1,000 540 No

10-31-92 930 1,540 1,000 540 No

10-31-92 945 1,540 1,000 540 No

10-31-92 960 1,540 1,000 540 No

10-31-92 975 1,540 1,000 540 No

10-31-92 990 1,540 1,000 540 No

10-31-92 1,005 1,540 1,000 540 No

10-31-92 1,020 1,550 1,000 550 No

10-31-92 1,035 1,560 1,000 560 No

10-31-92 1,050 1,580 1,000 580 No

10-31-92 1,065 1,590 1,000 590 No

10-31-92 1,080 1,600 1,000 600 No

10-31-92 1,095 1,610 1,000 610 No

10-31-92 1,110 1,610 1,000 610 No

10-31-92 1,125 1,610 1,000 610 No

10-31-92 1,140 1,610 1,000 610 No

10-31-92 1,155 1,610 1,000 610 No

10-31-92 1,170 1,610 1,000 610 No

10-31-92 1,185 1,610 1,000 610 No

10-31-92 1,200 1,610 1,000 610 No

10-31-92 1,215 1,610 1,000 610 No

10-31-92 1,230 1,610 1,000 610 No

10-31-92 1,245 1,610 1,000 610 No

10-31-92 1,260 1,610 1,000 610 No

10-31-92 1,275 1,610 1,000 610 No

10-31-92 1,290 1,610 1,000 610 No

10-31-92 1,305 1,610 1,000 610 No

10-31-92 1,320 1,610 1,000 610 No

10-31-92 1,335 1,610 1,000 610 No

10-31-92 1,350 1,610 1,000 610 No

10-31-92 1,365 1,610 1,000 610 No

10-31-92 1,380 1,610 1,000 610 No

Date Time

Unit 

streamflow 

(ft3/s)

Instream 

flow

(ft3/s)

Difference

(ft3/s) Excursion

Table 9. Unit-streamflow and instream-flow values for gaging station Puyallup River at Puyallup (12101500) from October 26 through 

November 10, 1992—Continued

[Time is the number of minutes past midnight; difference is streamflow minus instream flow; excursion indicates streamflow is less than instream flow value for 

that day; ft3/s, cubic feet per second]
34 Trends In Streamflow and Comparisons with Instream Flows in the Lower Puyallup River Basin, Washington

10-31-92 1,395 1,630 1,000 630 No

10-31-92 1,410 1,630 1,000 630 No

10-31-92 1,425 1,640 1,000 640 No

10-31-92 1,440 1,660 1,000 660 No

11-01-92 15 1,670 1,000 670 No

11-01-92 30 1,670 1,000 670 No

11-01-92 45 1,650 1,000 650 No

11-01-92 60 1,570 1,000 570 No

11-01-92 75 1,470 1,000 470 No

11-01-92 90 1,370 1,000 370 No

11-01-92 105 1,250 1,000 250 No

11-01-92 120 1,160 1,000 160 No

11-01-92 135 1,080 1,000 80 No

11-01-92 150 1,020 1,000 20 No

11-01-92 165 981 1,000 -19 Yes

11-01-92 180 943 1,000 -57 Yes

11-01-92 195 920 1,000 -80 Yes

11-01-92 210 906 1,000 -94 Yes

11-01-92 225 898 1,000 -102 Yes

11-01-92 240 891 1,000 -109 Yes

11-01-92 255 891 1,000 -109 Yes

11-01-92 270 891 1,000 -109 Yes

11-01-92 285 891 1,000 -109 Yes

11-01-92 300 891 1,000 -109 Yes

11-01-92 315 900 1,000 -100 Yes

11-01-92 330 910 1,000 -91 Yes

11-01-92 345 919 1,000 -81 Yes

11-01-92 360 928 1,000 -72 Yes

11-01-92 375 932 1,000 -68 Yes

11-01-92 390 936 1,000 -65 Yes

11-01-92 405 939 1,000 -61 Yes

11-01-92 420 943 1,000 -57 Yes

11-01-92 435 949 1,000 -51 Yes

11-01-92 450 955 1,000 -46 Yes

11-01-92 465 960 1,000 -40 Yes

11-01-92 480 966 1,000 -34 Yes

11-01-92 495 1,025 1,000 25 No

11-01-92 510 1,083 1,000 83 No

11-01-92 525 1,142 1,000 142 No

11-01-92 540 1,200 1,000 200 No

11-01-92 555 1,255 1,000 255 No

Date Time

Unit 

streamflow 

(ft3/s)

Instream 

flow

(ft3/s)

Difference

(ft3/s) Excursion

11-01-92 570 1,310 1,000 310 No

11-01-92 585 1,365 1,000 365 No

11-01-92 600 1,420 1,000 420 No

11-01-92 615 1,440 1,000 440 No

11-01-92 630 1,460 1,000 460 No

11-01-92 645 1,480 1,000 480 No

11-01-92 660 1,500 1,000 500 No

11-01-92 675 1,515 1,000 515 No

11-01-92 690 1,530 1,000 530 No

11-01-92 705 1,545 1,000 545 No

11-01-92 720 1,560 1,000 560 No

11-01-92 735 1,575 1,000 575 No

11-01-92 750 1,590 1,000 590 No

11-01-92 765 1,605 1,000 605 No

11-01-92 780 1,620 1,000 620 No

11-01-92 795 1,630 1,000 630 No

11-01-92 810 1,640 1,000 640 No

11-01-92 825 1,650 1,000 650 No

11-01-92 840 1,660 1,000 660 No

11-01-92 855 1,660 1,000 660 No

11-01-92 870 1,660 1,000 660 No

11-01-92 885 1,660 1,000 660 No

11-01-92 900 1,660 1,000 660 No

11-01-92 915 1,660 1,000 660 No

11-01-92 930 1,660 1,000 660 No

11-01-92 945 1,660 1,000 660 No

11-01-92 960 1,660 1,000 660 No

11-01-92 975 1,660 1,000 660 No

11-01-92 990 1,660 1,000 660 No

11-01-92 1,005 1,660 1,000 660 No

11-01-92 1,020 1,670 1,000 670 No

11-01-92 1,035 1,673 1,000 673 No

11-01-92 1,050 1,677 1,000 677 No

11-01-92 1,065 1,680 1,000 680 No

11-01-92 1,080 1,680 1,000 680 No

11-01-92 1,095 1,678 1,000 678 No

11-01-92 1,110 1,676 1,000 676 No

11-01-92 1,125 1,674 1,000 674 No

11-01-92 1,140 1,672 1,000 672 No

11-01-92 1,155 1,670 1,000 670 No

11-01-92 1,170 1,670 1,000 670 No

Date Time

Unit 

streamflow 

(ft3/s)

Instream 

flow

(ft3/s)

Difference

(ft3/s) Excursion

Table 9. Unit-streamflow and instream-flow values for gaging station Puyallup River at Puyallup (12101500) from October 26 through 

November 10, 1992—Continued

[Time is the number of minutes past midnight; difference is streamflow minus instream flow; excursion indicates streamflow is less than instream flow value for 

that day; ft3/s, cubic feet per second]
Table 9 35

11-01-92 1,185 1,680 1,000 680 No

11-01-92 1,200 1,680 1,000 680 No

11-01-92 1,215 1,690 1,000 690 No

11-01-92 1,230 1,700 1,000 700 No

11-01-92 1,245 1,700 1,000 700 No

11-01-92 1,260 1,710 1,000 710 No

11-01-92 1,275 1,710 1,000 710 No

11-01-92 1,290 1,710 1,000 710 No

11-01-92 1,305 1,710 1,000 710 No

11-01-92 1,320 1,710 1,000 710 No

11-01-92 1,335 1,700 1,000 700 No

11-01-92 1,350 1,695 1,000 695 No

11-01-92 1,365 1,690 1,000 690 No

11-01-92 1,380 1,685 1,000 685 No

11-01-92 1,395 1,680 1,000 680 No

11-01-92 1,410 1,670 1,000 670 No

11-01-92 1,425 1,670 1,000 670 No

11-01-92 1,440 1,670 1,000 670 No

11-02-92 15 1,660 1,007 653 No

11-02-92 30 1,650 1,007 643 No

11-02-92 45 1,610 1,007 603 No

11-02-92 60 1,560 1,007 553 No

11-02-92 75 1,500 1,007 493 No

11-02-92 90 1,430 1,007 423 No

11-02-92 105 1,370 1,007 363 No

11-02-92 120 1,310 1,007 303 No

11-02-92 135 1,260 1,007 253 No

11-02-92 150 1,240 1,007 233 No

11-02-92 165 1,210 1,007 203 No

11-02-92 180 1,200 1,007 193 No

11-02-92 195 1,190 1,007 183 No

11-02-92 210 1,180 1,007 173 No

11-02-92 225 1,180 1,007 173 No

11-02-92 240 1,180 1,007 173 No

11-02-92 255 1,180 1,007 173 No

11-02-92 270 1,180 1,007 173 No

11-02-92 285 1,185 1,007 178 No

11-02-92 300 1,190 1,007 183 No

11-02-92 315 1,200 1,007 193 No

11-02-92 330 1,200 1,007 193 No

11-02-92 345 1,200 1,007 193 No

Date Time

Unit 

streamflow 

(ft3/s)

Instream 

flow

(ft3/s)

Difference

(ft3/s) Excursion

11-02-92 360 1,210 1,007 203 No

11-02-92 375 1,230 1,007 223 No

11-02-92 390 1,250 1,007 243 No

11-02-92 405 1,280 1,007 273 No

11-02-92 420 1,315 1,007 308 No

11-02-92 435 1,350 1,007 343 No

11-02-92 450 1,370 1,007 363 No

11-02-92 465 1,410 1,007 403 No

11-02-92 480 1,460 1,007 453 No

11-02-92 495 1,540 1,007 533 No

11-02-92 510 1,620 1,007 613 No

11-02-92 525 1,700 1,007 693 No

11-02-92 540 1,760 1,007 753 No

11-02-92 555 1,810 1,007 803 No

11-02-92 570 1,850 1,007 843 No

11-02-92 585 1,870 1,007 863 No

11-02-92 600 1,880 1,007 873 No

11-02-92 615 1,890 1,007 883 No

11-02-92 630 1,890 1,007 883 No

11-02-92 645 1,890 1,007 883 No

11-02-92 660 1,890 1,007 883 No

11-02-92 675 1,900 1,007 893 No

11-02-92 690 1,900 1,007 893 No

11-02-92 705 1,910 1,007 903 No

11-02-92 720 1,910 1,007 903 No

11-02-92 735 1,920 1,007 913 No

11-02-92 750 1,920 1,007 913 No

11-02-92 765 1,920 1,007 913 No

11-02-92 780 1,920 1,007 913 No

11-02-92 795 1,910 1,007 903 No

11-02-92 810 1,910 1,007 903 No

11-02-92 825 1,900 1,007 893 No

11-02-92 840 1,890 1,007 883 No

11-02-92 855 1,880 1,007 873 No

11-02-92 870 1,870 1,007 863 No

11-02-92 885 1,860 1,007 853 No

11-02-92 900 1,850 1,007 843 No

11-02-92 915 1,840 1,007 833 No

11-02-92 930 1,830 1,007 823 No

11-02-92 945 1,820 1,007 813 No

11-02-92 960 1,810 1,007 803 No

Date Time

Unit 

streamflow 

(ft3/s)

Instream 

flow

(ft3/s)

Difference

(ft3/s) Excursion

Table 9. Unit-streamflow and instream-flow values for gaging station Puyallup River at Puyallup (12101500) from October 26 through 

November 10, 1992—Continued

[Time is the number of minutes past midnight; difference is streamflow minus instream flow; excursion indicates streamflow is less than instream flow value for 

that day; ft3/s, cubic feet per second]
36 Trends In Streamflow and Comparisons with Instream Flows in the Lower Puyallup River Basin, Washington

11-02-92 975 1,802 1,007 795 No

11-02-92 990 1,795 1,007 787 No

11-02-92 1,005 1,787 1,007 780 No

11-02-92 1,020 1,779 1,007 772 No

11-02-92 1,035 1,772 1,007 764 No

11-02-92 1,050 1,764 1,007 757 No

11-02-92 1,065 1,756 1,007 749 No

11-02-92 1,080 1,748 1,007 741 No

11-02-92 1,095 1,741 1,007 734 No

11-02-92 1,110 1,733 1,007 726 No

11-02-92 1,125 1,725 1,007 718 No

11-02-92 1,140 1,718 1,007 711 No

11-02-92 1,155 1,710 1,007 703 No

11-02-92 1,170 1,700 1,007 693 No

11-02-92 1,185 1,690 1,007 683 No

11-02-92 1,200 1,680 1,007 673 No

11-02-92 1,215 1,670 1,007 663 No

11-02-92 1,230 1,670 1,007 663 No

11-02-92 1,245 1,670 1,007 663 No

11-02-92 1,260 1,670 1,007 663 No

11-02-92 1,275 1,660 1,007 653 No

11-02-92 1,290 1,660 1,007 653 No

11-02-92 1,305 1,660 1,007 653 No

11-02-92 1,320 1,650 1,007 643 No

11-02-92 1,335 1,650 1,007 643 No

11-02-92 1,350 1,640 1,007 633 No

11-02-92 1,365 1,640 1,007 633 No

11-02-92 1,380 1,630 1,007 623 No

11-02-92 1,395 1,630 1,007 623 No

11-02-92 1,410 1,620 1,007 613 No

11-02-92 1,425 1,620 1,007 613 No

11-02-92 1,440 1,610 1,007 603 No

11-03-92 15 1,610 1,014 596 No

11-03-92 30 1,610 1,014 596 No

11-03-92 45 1,600 1,014 586 No

11-03-92 60 1,600 1,014 586 No

11-03-92 75 1,600 1,014 586 No

11-03-92 90 1,600 1,014 586 No

11-03-92 105 1,600 1,014 586 No

11-03-92 120 1,590 1,014 576 No

11-03-92 135 1,590 1,014 576 No

Date Time

Unit 

streamflow 

(ft3/s)

Instream 

flow

(ft3/s)

Difference

(ft3/s) Excursion

11-03-92 150 1,580 1,014 566 No

11-03-92 165 1,580 1,014 566 No

11-03-92 180 1,570 1,014 556 No

11-03-92 195 1,570 1,014 556 No

11-03-92 210 1,560 1,014 546 No

11-03-92 225 1,560 1,014 546 No

11-03-92 240 1,560 1,014 546 No

11-03-92 255 1,550 1,014 536 No

11-03-92 270 1,540 1,014 526 No

11-03-92 285 1,540 1,014 526 No

11-03-92 300 1,540 1,014 526 No

11-03-92 315 1,540 1,014 526 No

11-03-92 330 1,530 1,014 516 No

11-03-92 345 1,530 1,014 516 No

11-03-92 360 1,530 1,014 516 No

11-03-92 375 1,550 1,014 536 No

11-03-92 390 1,610 1,014 596 No

11-03-92 405 1,670 1,014 656 No

11-03-92 420 1,730 1,014 716 No

11-03-92 435 1,780 1,014 766 No

11-03-92 450 1,810 1,014 796 No

11-03-92 465 1,830 1,014 816 No

11-03-92 480 1,840 1,014 826 No

11-03-92 495 1,850 1,014 836 No

11-03-92 510 1,860 1,014 846 No

11-03-92 525 1,860 1,014 846 No

11-03-92 540 1,860 1,014 846 No

11-03-92 555 1,860 1,014 846 No

11-03-92 570 1,850 1,014 836 No

11-03-92 585 1,850 1,014 836 No

11-03-92 600 1,850 1,014 836 No

11-03-92 615 1,850 1,014 836 No

11-03-92 630 1,850 1,014 836 No

11-03-92 645 1,850 1,014 836 No

11-03-92 660 1,850 1,014 836 No

11-03-92 675 1,850 1,014 836 No

11-03-92 690 1,850 1,014 836 No

11-03-92 705 1,850 1,014 836 No

11-03-92 720 1,840 1,014 826 No

11-03-92 735 1,840 1,014 826 No

11-03-92 750 1,840 1,014 826 No

Date Time

Unit 

streamflow 

(ft3/s)

Instream 

flow

(ft3/s)

Difference

(ft3/s) Excursion

Table 9. Unit-streamflow and instream-flow values for gaging station Puyallup River at Puyallup (12101500) from October 26 through 

November 10, 1992—Continued

[Time is the number of minutes past midnight; difference is streamflow minus instream flow; excursion indicates streamflow is less than instream flow value for 

that day; ft3/s, cubic feet per second]
Table 9 37

11-03-92 765 1,830 1,014 816 No

11-03-92 780 1,830 1,014 816 No

11-03-92 795 1,830 1,014 816 No

11-03-92 810 1,820 1,014 806 No

11-03-92 825 1,820 1,014 806 No

11-03-92 840 1,820 1,014 806 No

11-03-92 855 1,820 1,014 806 No

11-03-92 870 1,820 1,014 806 No

11-03-92 885 1,820 1,014 806 No

11-03-92 900 1,820 1,014 806 No

11-03-92 915 1,820 1,014 806 No

11-03-92 930 1,810 1,014 796 No

11-03-92 945 1,810 1,014 796 No

11-03-92 960 1,810 1,014 796 No

11-03-92 975 1,800 1,014 786 No

11-03-92 990 1,800 1,014 786 No

11-03-92 1,005 1,800 1,014 786 No

11-03-92 1,020 1,800 1,014 786 No

11-03-92 1,035 1,790 1,014 776 No

11-03-92 1,050 1,790 1,014 776 No

11-03-92 1,065 1,790 1,014 776 No

11-03-92 1,080 1,790 1,014 776 No

11-03-92 1,095 1,790 1,014 776 No

11-03-92 1,110 1,790 1,014 776 No

11-03-92 1,125 1,790 1,014 776 No

11-03-92 1,140 1,790 1,014 776 No

11-03-92 1,155 1,790 1,014 776 No

11-03-92 1,170 1,790 1,014 776 No

11-03-92 1,185 1,790 1,014 776 No

11-03-92 1,200 1,790 1,014 776 No

11-03-92 1,215 1,790 1,014 776 No

11-03-92 1,230 1,790 1,014 776 No

11-03-92 1,245 1,790 1,014 776 No

11-03-92 1,260 1,780 1,014 766 No

11-03-92 1,275 1,777 1,014 762 No

11-03-92 1,290 1,773 1,014 759 No

11-03-92 1,305 1,770 1,014 756 No

11-03-92 1,320 1,767 1,014 752 No

11-03-92 1,335 1,763 1,014 749 No

11-03-92 1,350 1,760 1,014 746 No

11-03-92 1,365 1,760 1,014 746 No

Date Time

Unit 

streamflow 

(ft3/s)

Instream 

flow

(ft3/s)

Difference

(ft3/s) Excursion

11-03-92 1,380 1,760 1,014 746 No

11-03-92 1,395 1,760 1,014 746 No

11-03-92 1,410 1,755 1,014 741 No

11-03-92 1,425 1,750 1,014 736 No

11-03-92 1,440 1,720 1,014 706 No

11-04-92 15 1,670 1,021 649 No

11-04-92 30 1,600 1,021 579 No

11-04-92 45 1,510 1,021 489 No

11-04-92 60 1,410 1,021 389 No

11-04-92 75 1,320 1,021 299 No

11-04-92 90 1,250 1,021 229 No

11-04-92 105 1,190 1,021 169 No

11-04-92 120 1,140 1,021 119 No

11-04-92 135 1,110 1,021 89 No

11-04-92 150 1,080 1,021 59 No

11-04-92 165 1,070 1,021 49 No

11-04-92 180 1,050 1,021 29 No

11-04-92 195 1,040 1,021 19 No

11-04-92 210 1,030 1,021 9 No

11-04-92 225 1,030 1,021 9 No

11-04-92 240 1,020 1,021 -1 Yes

11-04-92 255 1,020 1,021 -1 Yes

11-04-92 270 1,020 1,021 -1 Yes

11-04-92 285 1,020 1,021 -1 Yes

11-04-92 300 1,020 1,021 -1 Yes

11-04-92 315 1,020 1,021 -1 Yes

11-04-92 330 1,020 1,021 -1 Yes

11-04-92 345 1,030 1,021 9 No

11-04-92 360 1,030 1,021 9 No

11-04-92 375 1,030 1,021 9 No

11-04-92 390 1,030 1,021 9 No

11-04-92 405 1,030 1,021 9 No

11-04-92 420 1,030 1,021 9 No

11-04-92 435 1,030 1,021 9 No

11-04-92 450 1,030 1,021 9 No

11-04-92 465 1,030 1,021 9 No

11-04-92 480 1,030 1,021 9 No

11-04-92 495 1,110 1,021 89 No

11-04-92 510 1,280 1,021 259 No

11-04-92 525 1,520 1,021 499 No

11-04-92 540 1,740 1,021 719 No

Date Time

Unit 

streamflow 

(ft3/s)

Instream 

flow

(ft3/s)

Difference

(ft3

/s) Excursion

Table 9. Unit-streamflow and instream-flow values for gaging station Puyallup River at Puyallup (12101500) from October 26 through 

November 10, 1992—Continued

[Time is the number of minutes past midnight; difference is streamflow minus instream flow; excursion indicates streamflow is less than instream flow value for 

that day; ft3/s, cubic feet per second]
38 Trends In Streamflow and Comparisons with Instream Flows in the Lower Puyallup River Basin, Washington

11-04-92 555 1,910 1,021 889 No

11-04-92 570 2,030 1,021 1,009 No

11-04-92 585 2,100 1,021 1,079 No

11-04-92 600 2,150 1,021 1,129 No

11-04-92 615 2,190 1,021 1,169 No

11-04-92 630 2,210 1,021 1,189 No

11-04-92 645 2,220 1,021 1,199 No

11-04-92 660 2,240 1,021 1,219 No

11-04-92 675 2,250 1,021 1,229 No

11-04-92 690 2,260 1,021 1,239 No

11-04-92 705 2,270 1,021 1,249 No

11-04-92 720 2,280 1,021 1,259 No

11-04-92 735 2,280 1,021 1,259 No

11-04-92 750 2,290 1,021 1,269 No

11-04-92 765 2,300 1,021 1,279 No

11-04-92 780 2,300 1,021 1,279 No

11-04-92 795 2,300 1,021 1,279 No

11-04-92 810 2,310 1,021 1,289 No

11-04-92 825 2,310 1,021 1,289 No

11-04-92 840 2,310 1,021 1,289 No

11-04-92 855 2,320 1,021 1,299 No

11-04-92 870 2,320 1,021 1,299 No

11-04-92 885 2,330 1,021 1,309 No

11-04-92 900 2,380 1,021 1,359 No

11-04-92 915 2,450 1,021 1,429 No

11-04-92 930 2,570 1,021 1,549 No

11-04-92 945 2,670 1,021 1,649 No

11-04-92 960 2,750 1,021 1,729 No

11-04-92 975 2,820 1,021 1,799 No

11-04-92 990 2,860 1,021 1,839 No

11-04-92 1,005 2,900 1,021 1,879 No

11-04-92 1,020 2,920 1,021 1,899 No

11-04-92 1,035 2,940 1,021 1,919 No

11-04-92 1,050 2,944 1,021 1,923 No

11-04-92 1,065 2,948 1,021 1,927 No

11-04-92 1,080 2,952 1,021 1,931 No

11-04-92 1,095 2,956 1,021 1,935 No

11-04-92 1,110 2,960 1,021 1,939 No

11-04-92 1,125 2,960 1,021 1,939 No

11-04-92 1,140 2,960 1,021 1,939 No

11-04-92 1,155 2,960 1,021 1,939 No

Date Time

Unit 

streamflow 

(ft3/s)

Instream 

flow

(ft3/s)

Difference

(ft3/s) Excursion

11-04-92 1,170 2,960 1,021 1,939 No

11-04-92 1,185 2,960 1,021 1,939 No

11-04-92 1,200 2,960 1,021 1,939 No

11-04-92 1,215 2,960 1,021 1,939 No

11-04-92 1,230 2,950 1,021 1,929 No

11-04-92 1,245 2,950 1,021 1,929 No

11-04-92 1,260 2,940 1,021 1,919 No

11-04-92 1,275 2,940 1,021 1,919 No

11-04-92 1,290 2,920 1,021 1,899 No

11-04-92 1,305 2,920 1,021 1,899 No

11-04-92 1,320 2,910 1,021 1,889 No

11-04-92 1,335 2,910 1,021 1,889 No

11-04-92 1,350 2,900 1,021 1,879 No

11-04-92 1,365 2,900 1,021 1,879 No

11-04-92 1,380 2,890 1,021 1,869 No

11-04-92 1,395 2,880 1,021 1,859 No

11-04-92 1,410 2,880 1,021 1,859 No

11-04-92 1,425 2,860 1,021 1,839 No

11-04-92 1,440 2,860 1,021 1,839 No

11-05-92 15 2,850 1,029 1,821 No

11-05-92 30 2,850 1,029 1,821 No

11-05-92 45 2,420 1,029 1,391 No

11-05-92 60 2,349 1,029 1,320 No

11-05-92 75 2,278 1,029 1,249 No

11-05-92 90 2,207 1,029 1,178 No

11-05-92 105 2,136 1,029 1,107 No

11-05-92 120 2,065 1,029 1,036 No

11-05-92 135 1,994 1,029 965 No

11-05-92 150 1,923 1,029 894 No

11-05-92 165 1,852 1,029 823 No

11-05-92 180 1,781 1,029 752 No

11-05-92 195 1,710 1,029 681 No

11-05-92 210 1,670 1,029 641 No

11-05-92 225 1,640 1,029 611 No

11-05-92 240 1,620 1,029 591 No

11-05-92 255 1,612 1,029 584 No

11-05-92 270 1,605 1,029 576 No

11-05-92 285 1,597 1,029 568 No

11-05-92 300 1,589 1,029 561 No

11-05-92 315 1,582 1,029 553 No

11-05-92 330 1,574 1,029 545 No

Date Time

Unit 

streamflow 

(ft3/s)

Instream 

flow

(ft3/s)

Difference

(ft3/s) Excursion

Table 9. Unit-streamflow and instream-flow values for gaging station Puyallup River at Puyallup (12101500) from October 26 through 

November 10, 1992—Continued

[Time is the number of minutes past midnight; difference is streamflow minus instream flow; excursion indicates streamflow is less than instream flow value for 

that day; ft3/s, cubic feet per second]
Table 9 39

11-05-92 345 1,566 1,029 538 No

11-05-92 360 1,558 1,029 530 No

11-05-92 375 1,551 1,029 522 No

11-05-92 390 1,543 1,029 515 No

11-05-92 405 1,535 1,029 507 No

11-05-92 420 1,528 1,029 499 No

11-05-92 435 1,520 1,029 491 No

11-05-92 450 1,650 1,029 621 No

11-05-92 465 1,870 1,029 841 No

11-05-92 480 2,100 1,029 1,071 No

11-05-92 495 2,290 1,029 1,261 No

11-05-92 510 2,410 1,029 1,381 No

11-05-92 525 2,490 1,029 1,461 No

11-05-92 540 2,530 1,029 1,501 No

11-05-92 555 2,550 1,029 1,521 No

11-05-92 570 2,570 1,029 1,541 No

11-05-92 585 2,580 1,029 1,551 No

11-05-92 600 2,580 1,029 1,551 No

11-05-92 615 2,580 1,029 1,551 No

11-05-92 630 2,580 1,029 1,551 No

11-05-92 645 2,580 1,029 1,551 No

11-05-92 660 2,580 1,029 1,551 No

11-05-92 675 2,580 1,029 1,551 No

11-05-92 690 2,580 1,029 1,551 No

11-05-92 705 2,580 1,029 1,551 No

11-05-92 720 2,580 1,029 1,551 No

11-05-92 735 2,580 1,029 1,551 No

11-05-92 750 2,580 1,029 1,551 No

11-05-92 765 2,580 1,029 1,551 No

11-05-92 780 2,570 1,029 1,541 No

11-05-92 795 2,570 1,029 1,541 No

11-05-92 810 2,570 1,029 1,541 No

11-05-92 825 2,550 1,029 1,521 No

11-05-92 840 2,550 1,029 1,521 No

11-05-92 855 2,550 1,029 1,521 No

11-05-92 870 2,540 1,029 1,511 No

11-05-92 885 2,540 1,029 1,511 No

11-05-92 900 2,540 1,029 1,511 No

11-05-92 915 2,530 1,029 1,501 No

11-05-92 930 2,530 1,029 1,501 No

11-05-92 945 2,530 1,029 1,501 No

Date Time

Unit 

streamflow 

(ft3/s)

Instream 

flow

(ft3/s)

Difference

(ft3/s) Excursion

11-05-92 960 2,530 1,029 1,501 No

11-05-92 975 2,520 1,029 1,491 No

11-05-92 990 2,520 1,029 1,491 No

11-05-92 1,005 2,520 1,029 1,491 No

11-05-92 1,020 2,520 1,029 1,491 No

11-05-92 1,035 2,520 1,029 1,491 No

11-05-92 1,050 2,520 1,029 1,491 No

11-05-92 1,065 2,520 1,029 1,491 No

11-05-92 1,080 2,520 1,029 1,491 No

11-05-92 1,095 2,520 1,029 1,491 No

11-05-92 1,110 2,520 1,029 1,491 No

11-05-92 1,125 2,510 1,029 1,481 No

11-05-92 1,140 2,510 1,029 1,481 No

11-05-92 1,155 2,510 1,029 1,481 No

11-05-92 1,170 2,510 1,029 1,481 No

11-05-92 1,185 2,510 1,029 1,481 No

11-05-92 1,200 2,510 1,029 1,481 No

11-05-92 1,215 2,510 1,029 1,481 No

11-05-92 1,230 2,510 1,029 1,481 No

11-05-92 1,245 2,500 1,029 1,471 No

11-05-92 1,260 2,500 1,029 1,471 No

11-05-92 1,275 2,490 1,029 1,461 No

11-05-92 1,290 2,490 1,029 1,461 No

11-05-92 1,305 2,480 1,029 1,451 No

11-05-92 1,320 2,480 1,029 1,451 No

11-05-92 1,335 2,480 1,029 1,451 No

11-05-92 1,350 2,470 1,029 1,441 No

11-05-92 1,365 2,470 1,029 1,441 No

11-05-92 1,380 2,450 1,029 1,421 No

11-05-92 1,395 2,450 1,029 1,421 No

11-05-92 1,410 2,430 1,029 1,401 No

11-05-92 1,425 2,400 1,029 1,371 No

11-05-92 1,440 2,310 1,029 1,281 No

11-06-92 15 2,200 1,036 1,164 No

11-06-92 30 2,040 1,036 1,004 No

11-06-92 45 1,890 1,036 854 No

11-06-92 60 1,740 1,036 704 No

11-06-92 75 1,620 1,036 584 No

11-06-92 90 1,520 1,036 484 No

11-06-92 105 1,440 1,036 404 No

11-06-92 120 1,370 1,036 334 No

Date Time

Unit 

streamflow 

(ft3/s)

Instream 

flow

(ft3/s)

Difference

(ft3/s) Excursion

Table 9. Unit-streamflow and instream-flow values for gaging station Puyallup River at Puyallup (12101500) from October 26 through 

November 10, 1992—Continued

[Time is the number of minutes past midnight; difference is streamflow minus instream flow; excursion indicates streamflow is less than instream flow value for 

that day; ft3/s, cubic feet per second]
40 Trends In Streamflow and Comparisons with Instream Flows in the Lower Puyallup River Basin, Washington

11-06-92 135 1,330 1,036 294 No

11-06-92 150 1,300 1,036 264 No

11-06-92 165 1,270 1,036 234 No

11-06-92 180 1,250 1,036 214 No

11-06-92 195 1,240 1,036 204 No

11-06-92 210 1,230 1,036 194 No

11-06-92 225 1,200 1,036 164 No

11-06-92 240 1,200 1,036 164 No

11-06-92 255 1,200 1,036 164 No

11-06-92 270 1,190 1,036 154 No

11-06-92 285 1,180 1,036 144 No

11-06-92 300 1,180 1,036 144 No

11-06-92 315 1,170 1,036 134 No

11-06-92 330 1,160 1,036 124 No

11-06-92 345 1,160 1,036 124 No

11-06-92 360 1,150 1,036 114 No

11-06-92 375 1,150 1,036 114 No

11-06-92 390 1,150 1,036 114 No

11-06-92 405 1,150 1,036 114 No

11-06-92 420 1,210 1,036 174 No

11-06-92 435 1,370 1,036 334 No

11-06-92 450 1,590 1,036 554 No

11-06-92 465 1,820 1,036 784 No

11-06-92 480 2,000 1,036 964 No

11-06-92 495 2,110 1,036 1,074 No

11-06-92 510 2,190 1,036 1,154 No

11-06-92 525 2,230 1,036 1,194 No

11-06-92 540 2,250 1,036 1,214 No

11-06-92 555 2,280 1,036 1,244 No

11-06-92 570 2,280 1,036 1,244 No

11-06-92 585 2,283 1,036 1,247 No

11-06-92 600 2,286 1,036 1,250 No

11-06-92 615 2,289 1,036 1,253 No

11-06-92 630 2,291 1,036 1,256 No

11-06-92 645 2,294 1,036 1,259 No

11-06-92 660 2,297 1,036 1,261 No

11-06-92 675 2,300 1,036 1,264 No

11-06-92 690 2,300 1,036 1,264 No

11-06-92 705 2,300 1,036 1,264 No

11-06-92 720 2,300 1,036 1,264 No

11-06-92 735 2,290 1,036 1,254 No

Date Time

Unit 

streamflow 

(ft3/s)

Instream 

flow

(ft3/s)

Difference

(ft3/s) Excursion

11-06-92 750 2,290 1,036 1,254 No

11-06-92 765 2,290 1,036 1,254 No

11-06-92 780 2,290 1,036 1,254 No

11-06-92 795 2,290 1,036 1,254 No

11-06-92 810 2,290 1,036 1,254 No

11-06-92 825 2,290 1,036 1,254 No

11-06-92 840 2,290 1,036 1,254 No

11-06-92 855 2,290 1,036 1,254 No

11-06-92 870 2,290 1,036 1,254 No

11-06-92 885 2,290 1,036 1,254 No

11-06-92 900 2,290 1,036 1,254 No

11-06-92 915 2,290 1,036 1,254 No

11-06-92 930 2,290 1,036 1,254 No

11-06-92 945 2,290 1,036 1,254 No

11-06-92 960 2,290 1,036 1,254 No

11-06-92 975 2,290 1,036 1,254 No

11-06-92 990 2,290 1,036 1,254 No

11-06-92 1,005 2,290 1,036 1,254 No

11-06-92 1,020 2,290 1,036 1,254 No

11-06-92 1,035 2,290 1,036 1,254 No

11-06-92 1,050 2,290 1,036 1,254 No

11-06-92 1,065 2,290 1,036 1,254 No

11-06-92 1,080 2,290 1,036 1,254 No

11-06-92 1,095 2,300 1,036 1,264 No

11-06-92 1,110 2,300 1,036 1,264 No

11-06-92 1,125 2,310 1,036 1,274 No

11-06-92 1,140 2,310 1,036 1,274 No

11-06-92 1,155 2,310 1,036 1,274 No

11-06-92 1,170 2,310 1,036 1,274 No

11-06-92 1,185 2,310 1,036 1,274 No

11-06-92 1,200 2,310 1,036 1,274 No

11-06-92 1,215 2,310 1,036 1,274 No

11-06-92 1,230 2,310 1,036 1,274 No

11-06-92 1,245 2,300 1,036 1,264 No

11-06-92 1,260 2,300 1,036 1,264 No

11-06-92 1,275 2,300 1,036 1,264 No

11-06-92 1,290 2,300 1,036 1,264 No

11-06-92 1,305 2,300 1,036 1,264 No

11-06-92 1,320 2,300 1,036 1,264 No

11-06-92 1,335 2,300 1,036 1,264 No

11-06-92 1,350 2,300 1,036 1,264 No

Date Time

Unit 

streamflow 

(ft3/s)

Instream 

flow

(ft3/s)

Difference

(ft3/s) Excursion

Table 9. Unit-streamflow and instream-flow values for gaging station Puyallup River at Puyallup (12101500) from October 26 through 

November 10, 1992—Continued

[Time is the number of minutes past midnight; difference is streamflow minus instream flow; excursion indicates streamflow is less than instream flow value for 

that day; ft3/s, cubic feet per second]
Table 9 41

11-06-92 1,365 2,300 1,036 1,264 No

11-06-92 1,380 2,300 1,036 1,264 No

11-06-92 1,395 2,300 1,036 1,264 No

11-06-92 1,410 2,300 1,036 1,264 No

11-06-92 1,425 2,300 1,036 1,264 No

11-06-92 1,440 2,300 1,036 1,264 No

11-07-92 15 2,300 1,043 1,257 No

11-07-92 30 2,300 1,043 1,257 No

11-07-92 45 2,290 1,043 1,247 No

11-07-92 60 2,230 1,043 1,187 No

11-07-92 75 2,120 1,043 1,077 No

11-07-92 90 1,980 1,043 937 No

11-07-92 105 1,830 1,043 787 No

11-07-92 120 1,670 1,043 627 No

11-07-92 135 1,540 1,043 497 No

11-07-92 150 1,450 1,043 407 No

11-07-92 165 1,370 1,043 327 No

11-07-92 180 1,310 1,043 267 No

11-07-92 195 1,250 1,043 207 No

11-07-92 210 1,230 1,043 187 No

11-07-92 225 1,200 1,043 157 No

11-07-92 240 1,180 1,043 137 No

11-07-92 255 1,170 1,043 127 No

11-07-92 270 1,160 1,043 117 No

11-07-92 285 1,150 1,043 107 No

11-07-92 300 1,150 1,043 107 No

11-07-92 315 1,150 1,043 107 No

11-07-92 330 1,150 1,043 107 No

11-07-92 345 1,150 1,043 107 No

11-07-92 360 1,150 1,043 107 No

11-07-92 375 1,150 1,043 107 No

11-07-92 390 1,150 1,043 107 No

11-07-92 405 1,150 1,043 107 No

11-07-92 420 1,150 1,043 107 No

11-07-92 435 1,150 1,043 107 No

11-07-92 450 1,150 1,043 107 No

11-07-92 465 1,160 1,043 117 No

11-07-92 480 1,170 1,043 127 No

11-07-92 495 1,180 1,043 137 No

11-07-92 510 1,200 1,043 157 No

11-07-92 525 1,290 1,043 247 No

Date Time

Unit 

streamflow 

(ft3

/s)

Instream 

flow

(ft3/s)

Difference

(ft3/s) Excursion

11-07-92 540 1,450 1,043 407 No

11-07-92 555 1,580 1,043 537 No

11-07-92 570 1,750 1,043 707 No

11-07-92 585 2,040 1,043 997 No

11-07-92 600 2,240 1,043 1,197 No

11-07-92 615 2,440 1,043 1,397 No

11-07-92 630 2,550 1,043 1,507 No

11-07-92 645 2,650 1,043 1,607 No

11-07-92 660 2,740 1,043 1,697 No

11-07-92 675 2,830 1,043 1,787 No

11-07-92 690 2,940 1,043 1,897 No

11-07-92 705 3,070 1,043 2,027 No

11-07-92 720 3,200 1,043 2,157 No

11-07-92 735 3,340 1,043 2,297 No

11-07-92 750 3,450 1,043 2,407 No

11-07-92 765 3,530 1,043 2,487 No

11-07-92 780 3,580 1,043 2,537 No

11-07-92 795 3,600 1,043 2,557 No

11-07-92 810 3,620 1,043 2,577 No

11-07-92 825 3,620 1,043 2,577 No

11-07-92 840 3,620 1,043 2,577 No

11-07-92 855 3,620 1,043 2,577 No

11-07-92 870 3,620 1,043 2,577 No

11-07-92 885 3,620 1,043 2,577 No

11-07-92 900 3,620 1,043 2,577 No

11-07-92 915 3,620 1,043 2,577 No

11-07-92 930 3,620 1,043 2,577 No

11-07-92 945 3,620 1,043 2,577 No

11-07-92 960 3,600 1,043 2,557 No

11-07-92 975 3,590 1,043 2,547 No

11-07-92 990 3,580 1,043 2,537 No

11-07-92 1,005 3,560 1,043 2,517 No

11-07-92 1,020 3,550 1,043 2,507 No

11-07-92 1,035 3,540 1,043 2,497 No

11-07-92 1,050 3,530 1,043 2,487 No

11-07-92 1,065 3,510 1,043 2,467 No

11-07-92 1,080 3,500 1,043 2,457 No

11-07-92 1,095 3,490 1,043 2,447 No

11-07-92 1,110 3,470 1,043 2,427 No

11-07-92 1,125 3,460 1,043 2,417 No

11-07-92 1,140 3,450 1,043 2,407 No

Date Time

Unit 

streamflow 

(ft3

/s)

Instream 

flow

(ft3/s)

Difference

(ft3/s) Excursion

Table 9. Unit-streamflow and instream-flow values for gaging station Puyallup River at Puyallup (12101500) from October 26 through 

November 10, 1992—Continued

[Time is the number of minutes past midnight; difference is streamflow minus instream flow; excursion indicates streamflow is less than instream flow value for 

that day; ft3/s, cubic feet per second]
42 Trends In Streamflow and Comparisons with Instream Flows in the Lower Puyallup River Basin, Washington

11-07-92 1,155 3,440 1,043 2,397 No

11-07-92 1,170 3,420 1,043 2,377 No

11-07-92 1,185 3,400 1,043 2,357 No

11-07-92 1,200 3,390 1,043 2,347 No

11-07-92 1,215 3,370 1,043 2,327 No

11-07-92 1,230 3,360 1,043 2,317 No

11-07-92 1,245 3,350 1,043 2,307 No

11-07-92 1,260 3,350 1,043 2,307 No

11-07-92 1,275 3,320 1,043 2,277 No

11-07-92 1,290 3,310 1,043 2,267 No

11-07-92 1,305 3,300 1,043 2,257 No

11-07-92 1,320 3,290 1,043 2,247 No

11-07-92 1,335 3,270 1,043 2,227 No

11-07-92 1,350 3,260 1,043 2,217 No

11-07-92 1,365 3,250 1,043 2,207 No

11-07-92 1,380 3,240 1,043 2,197 No

11-07-92 1,395 3,210 1,043 2,167 No

11-07-92 1,410 3,160 1,043 2,117 No

11-07-92 1,425 3,050 1,043 2,007 No

11-07-92 1,440 2,910 1,043 1,867 No

11-08-92 15 2,750 1,050 1,700 No

11-08-92 30 2,590 1,050 1,540 No

11-08-92 45 2,450 1,050 1,400 No

11-08-92 60 2,330 1,050 1,280 No

11-08-92 75 2,240 1,050 1,190 No

11-08-92 90 2,170 1,050 1,120 No

11-08-92 105 2,120 1,050 1,070 No

11-08-92 120 2,060 1,050 1,010 No

11-08-92 135 2,020 1,050 970 No

11-08-92 150 1,990 1,050 940 No

11-08-92 165 1,970 1,050 920 No

11-08-92 180 1,950 1,050 900 No

11-08-92 195 1,944 1,050 894 No

11-08-92 210 1,938 1,050 888 No

11-08-92 225 1,931 1,050 881 No

11-08-92 240 1,925 1,050 875 No

11-08-92 255 1,919 1,050 869 No

11-08-92 270 1,913 1,050 863 No

11-08-92 285 1,906 1,050 856 No

11-08-92 300 1,900 1,050 850 No

11-08-92 315 1,893 1,050 843 No

Date Time

Unit 

streamflow 

(ft3/s)

Instream 

flow

(ft3/s)

Difference

(ft3/s) Excursion

11-08-92 330 1,887 1,050 837 No

11-08-92 345 1,880 1,050 830 No

11-08-92 360 1,873 1,050 823 No

11-08-92 375 1,867 1,050 817 No

11-08-92 390 1,860 1,050 810 No

11-08-92 405 1,853 1,050 803 No

11-08-92 420 1,847 1,050 797 No

11-08-92 435 1,840 1,050 790 No

11-08-92 450 1,840 1,050 790 No

11-08-92 465 1,920 1,050 870 No

11-08-92 480 2,100 1,050 1,050 No

11-08-92 495 2,320 1,050 1,270 No

11-08-92 510 2,530 1,050 1,480 No

11-08-92 525 2,680 1,050 1,630 No

11-08-92 540 2,780 1,050 1,730 No

11-08-92 555 2,850 1,050 1,800 No

11-08-92 570 2,900 1,050 1,850 No

11-08-92 585 2,940 1,050 1,890 No

11-08-92 600 2,957 1,050 1,907 No

11-08-92 615 2,973 1,050 1,923 No

11-08-92 630 2,990 1,050 1,940 No

11-08-92 645 3,007 1,050 1,957 No

11-08-92 660 3,023 1,050 1,973 No

11-08-92 675 3,040 1,050 1,990 No

11-08-92 690 3,050 1,050 2,000 No

11-08-92 705 3,070 1,050 2,020 No

11-08-92 720 3,080 1,050 2,030 No

11-08-92 735 3,100 1,050 2,050 No

11-08-92 750 3,130 1,050 2,080 No

11-08-92 765 3,140 1,050 2,090 No

11-08-92 780 3,150 1,050 2,100 No

11-08-92 795 3,160 1,050 2,110 No

11-08-92 810 3,160 1,050 2,110 No

11-08-92 825 3,160 1,050 2,110 No

11-08-92 840 3,160 1,050 2,110 No

11-08-92 855 3,180 1,050 2,130 No

11-08-92 870 3,180 1,050 2,130 No

11-08-92 885 3,180 1,050 2,130 No

11-08-92 900 3,180 1,050 2,130 No

11-08-92 915 3,180 1,050 2,130 No

11-08-92 930 3,180 1,050 2,130 No

Date Time

Unit 

streamflow 

(ft3/s)

Instream 

flow

(ft3/s)

Difference

(ft3/s) Excursion

Table 9. Unit-streamflow and instream-flow values for gaging station Puyallup River at Puyallup (12101500) from October 26 through 

November 10, 1992—Continued

[Time is the number of minutes past midnight; difference is streamflow minus instream flow; excursion indicates streamflow is less than instream flow value for 

that day; ft3/s, cubic feet per second]
Table 9 43

11-08-92 945 3,180 1,050 2,130 No

11-08-92 960 3,180 1,050 2,130 No

11-08-92 975 3,180 1,050 2,130 No

11-08-92 990 3,180 1,050 2,130 No

11-08-92 1005 3,180 1,050 2,130 No

11-08-92 1020 3,180 1,050 2,130 No

11-08-92 1035 3,190 1,050 2,140 No

11-08-92 1050 3,190 1,050 2,140 No

11-08-92 1065 3,190 1,050 2,140 No

11-08-92 1080 3,190 1,050 2,140 No

11-08-92 1095 3,190 1,050 2,140 No

11-08-92 1110 3,190 1,050 2,140 No

11-08-92 1125 3,200 1,050 2,150 No

11-08-92 1140 3,200 1,050 2,150 No

11-08-92 1155 3,210 1,050 2,160 No

11-08-92 1170 3,210 1,050 2,160 No

11-08-92 1185 3,230 1,050 2,180 No

11-08-92 1200 3,230 1,050 2,180 No

11-08-92 1215 3,240 1,050 2,190 No

11-08-92 1230 3,250 1,050 2,200 No

11-08-92 1245 3,260 1,050 2,210 No

11-08-92 1260 3,270 1,050 2,220 No

11-08-92 1275 3,290 1,050 2,240 No

11-08-92 1290 3,290 1,050 2,240 No

11-08-92 1305 3,300 1,050 2,250 No

11-08-92 1320 3,300 1,050 2,250 No

11-08-92 1335 3,300 1,050 2,250 No

11-08-92 1350 3,290 1,050 2,240 No

11-08-92 1365 3,240 1,050 2,190 No

11-08-92 1380 3,140 1,050 2,090 No

11-08-92 1395 3,010 1,050 1,960 No

11-08-92 1410 2,850 1,050 1,800 No

11-08-92 1425 2,700 1,050 1,650 No

11-08-92 1440 2,580 1,050 1,530 No

11-09-92 15 2,470 1,057 1,413 No

11-09-92 30 2,390 1,057 1,333 No

11-09-92 45 2,320 1,057 1,263 No

11-09-92 60 2,280 1,057 1,223 No

11-09-92 75 2,250 1,057 1,193 No

11-09-92 90 2,220 1,057 1,163 No

11-09-92 105 2,200 1,057 1,143 No

Date Time

Unit 

streamflow 

(ft3/s)

Instream 

flow

(ft3/s)

Difference

(ft3/s) Excursion

11-09-92 120 2,190 1,057 1,133 No

11-09-92 135 2,170 1,057 1,113 No

11-09-92 150 2,160 1,057 1,103 No

11-09-92 165 2,160 1,057 1,103 No

11-09-92 180 2,150 1,057 1,093 No

11-09-92 195 2,150 1,057 1,093 No

11-09-92 210 2,150 1,057 1,093 No

11-09-92 225 2,150 1,057 1,093 No

11-09-92 240 2,140 1,057 1,083 No

11-09-92 255 2,140 1,057 1,083 No

11-09-92 270 2,130 1,057 1,073 No

11-09-92 285 2,130 1,057 1,073 No

11-09-92 300 2,130 1,057 1,073 No

11-09-92 315 2,130 1,057 1,073 No

11-09-92 330 2,130 1,057 1,073 No

11-09-92 345 2,130 1,057 1,073 No

11-09-92 360 2,130 1,057 1,073 No

11-09-92 375 2,130 1,057 1,073 No

11-09-92 390 2,130 1,057 1,073 No

11-09-92 405 2,130 1,057 1,073 No

11-09-92 420 2,140 1,057 1,083 No

11-09-92 435 2,170 1,057 1,113 No

11-09-92 450 2,280 1,057 1,223 No

11-09-92 465 2,490 1,057 1,433 No

11-09-92 480 2,710 1,057 1,653 No

11-09-92 495 2,900 1,057 1,843 No

11-09-92 510 3,030 1,057 1,973 No

11-09-92 525 3,100 1,057 2,043 No

11-09-92 540 3,150 1,057 2,093 No

11-09-92 555 3,180 1,057 2,123 No

11-09-92 570 3,190 1,057 2,133 No

11-09-92 585 3,190 1,057 2,133 No

11-09-92 600 3,190 1,057 2,133 No

11-09-92 615 3,190 1,057 2,133 No

11-09-92 630 3,180 1,057 2,123 No

11-09-92 645 3,165 1,057 2,108 No

11-09-92 660 3,150 1,057 2,093 No

11-09-92 675 3,140 1,057 2,083 No

11-09-92 690 3,140 1,057 2,083 No

11-09-92 705 3,130 1,057 2,073 No

11-09-92 720 3,120 1,057 2,063 No

Date Time

Unit 

streamflow 

(ft3/s)

Instream 

flow

(ft3/s)

Difference

(ft3/s) Excursion

Table 9. Unit-streamflow and instream-flow values for gaging station Puyallup River at Puyallup (12101500) from October 26 through 

November 10, 1992—Continued

[Time is the number of minutes past midnight; difference is streamflow minus instream flow; excursion indicates streamflow is less than instream flow value for 

that day; ft3/s, cubic feet per second]
44 Trends In Streamflow and Comparisons with Instream Flows in the Lower Puyallup River Basin, Washington

11-09-92 735 3,100 1,057 2,043 No

11-09-92 750 3,100 1,057 2,043 No

11-09-92 765 3,090 1,057 2,033 No

11-09-92 780 3,090 1,057 2,033 No

11-09-92 795 3,080 1,057 2,023 No

11-09-92 810 3,080 1,057 2,023 No

11-09-92 825 3,070 1,057 2,013 No

11-09-92 840 3,050 1,057 1,993 No

11-09-92 855 3,040 1,057 1,983 No

11-09-92 870 3,040 1,057 1,983 No

11-09-92 885 3,030 1,057 1,973 No

11-09-92 900 3,030 1,057 1,973 No

11-09-92 915 3,020 1,057 1,963 No

11-09-92 930 3,020 1,057 1,963 No

11-09-92 945 3,020 1,057 1,963 No

11-09-92 960 3,020 1,057 1,963 No

11-09-92 975 3,010 1,057 1,953 No

11-09-92 990 3,010 1,057 1,953 No

11-09-92 1,005 2,990 1,057 1,933 No

11-09-92 1,020 2,980 1,057 1,923 No

11-09-92 1,035 2,970 1,057 1,913 No

11-09-92 1,050 2,960 1,057 1,903 No

11-09-92 1,065 2,950 1,057 1,893 No

11-09-92 1,080 2,950 1,057 1,893 No

11-09-92 1,095 2,940 1,057 1,883 No

11-09-92 1,110 2,940 1,057 1,883 No

11-09-92 1,125 2,940 1,057 1,883 No

11-09-92 1,140 2,940 1,057 1,883 No

11-09-92 1,155 2,940 1,057 1,883 No

11-09-92 1,170 2,940 1,057 1,883 No

11-09-92 1,185 2,940 1,057 1,883 No

11-09-92 1,200 2,940 1,057 1,883 No

11-09-92 1,215 2,920 1,057 1,863 No

11-09-92 1,230 2,920 1,057 1,863 No

11-09-92 1,245 2,910 1,057 1,853 No

11-09-92 1,260 2,900 1,057 1,843 No

11-09-92 1,275 2,890 1,057 1,833 No

11-09-92 1,290 2,890 1,057 1,833 No

11-09-92 1,305 2,890 1,057 1,833 No

11-09-92 1,320 2,880 1,057 1,823 No

11-09-92 1,335 2,880 1,057 1,823 No

Date Time

Unit 

streamflow 

(ft3/s)

Instream 

flow

(ft3/s)

Difference

(ft3/s) Excursion

11-09-92 1,350 2,860 1,057 1,803 No

11-09-92 1,365 2,860 1,057 1,803 No

11-09-92 1,380 2,850 1,057 1,793 No

11-09-92 1,395 2,840 1,057 1,783 No

11-09-92 1,410 2,790 1,057 1,733 No

11-09-92 1,425 2,710 1,057 1,653 No

11-09-92 1,440 2,590 1,057 1,533 No

11-10-92 15 2,440 1,064 1,376 No

11-10-92 30 2,290 1,064 1,226 No

11-10-92 45 2,160 1,064 1,096 No

11-10-92 60 2,030 1,064 966 No

11-10-92 75 1,940 1,064 876 No

11-10-92 90 1,860 1,064 796 No

11-10-92 105 1,800 1,064 736 No

11-10-92 120 1,750 1,064 686 No

11-10-92 135 1,720 1,064 656 No

11-10-92 150 1,690 1,064 626 No

11-10-92 165 1,670 1,064 606 No

11-10-92 180 1,670 1,064 606 No

11-10-92 195 1,660 1,064 596 No

11-10-92 210 1,650 1,064 586 No

11-10-92 225 1,630 1,064 566 No

11-10-92 240 1,620 1,064 556 No

11-10-92 255 1,620 1,064 556 No

11-10-92 270 1,600 1,064 536 No

11-10-92 285 1,580 1,064 516 No

11-10-92 300 1,580 1,064 516 No

11-10-92 315 1,570 1,064 506 No

11-10-92 330 1,570 1,064 506 No

11-10-92 345 1,560 1,064 496 No

11-10-92 360 1,560 1,064 496 No

11-10-92 375 1,560 1,064 496 No

11-10-92 390 1,560 1,064 496 No

11-10-92 405 1,550 1,064 486 No

11-10-92 420 1,550 1,064 486 No

11-10-92 435 1,540 1,064 476 No

11-10-92 450 1,540 1,064 476 No

11-10-92 465 1,600 1,064 536 No

11-10-92 480 1,750 1,064 686 No

11-10-92 495 1,980 1,064 916 No

11-10-92 510 2,200 1,064 1,136 No

Date Time

Unit 

streamflow 

(ft3/s)

Instream 

flow

(ft3/s)

Difference

(ft3/s) Excursion

Table 9. Unit-streamflow and instream-flow values for gaging station Puyallup River at Puyallup (12101500) from October 26 through 

November 10, 1992—Continued

[Time is the number of minutes past midnight; difference is streamflow minus instream flow; excursion indicates streamflow is less than instream flow value for 

that day; ft3/s, cubic feet per second]
45 Trends In Streamflow and Comparisons with Instream Flows in the Lower Puyallup River Basin, Washington

11-10-92 525 2,360 1,064 1,296 No

11-10-92 540 2,450 1,064 1,386 No

11-10-92 555 2,520 1,064 1,456 No

11-10-92 570 2,550 1,064 1,486 No

11-10-92 585 2,580 1,064 1,516 No

11-10-92 600 2,600 1,064 1,536 No

11-10-92 615 2,600 1,064 1,536 No

11-10-92 630 2,610 1,064 1,546 No

11-10-92 645 2,620 1,064 1,556 No

11-10-92 660 2,620 1,064 1,556 No

11-10-92 675 2,620 1,064 1,556 No

11-10-92 690 2,620 1,064 1,556 No

11-10-92 705 2,620 1,064 1,556 No

11-10-92 720 2,620 1,064 1,556 No

11-10-92 735 2,620 1,064 1,556 No

11-10-92 750 2,620 1,064 1,556 No

11-10-92 765 2,620 1,064 1,556 No

11-10-92 780 2,620 1,064 1,556 No

11-10-92 795 2,620 1,064 1,556 No

11-10-92 810 2,620 1,064 1,556 No

11-10-92 825 2,620 1,064 1,556 No

11-10-92 840 2,620 1,064 1,556 No

11-10-92 855 2,610 1,064 1,546 No

11-10-92 870 2,610 1,064 1,546 No

11-10-92 885 2,610 1,064 1,546 No

11-10-92 900 2,600 1,064 1,536 No

11-10-92 915 2,600 1,064 1,536 No

11-10-92 930 2,600 1,064 1,536 No

11-10-92 945 2,600 1,064 1,536 No

11-10-92 960 2,600 1,064 1,536 No

11-10-92 975 2,600 1,064 1,536 No

Date Time

Unit 

streamflow 

(ft3

/s)

Instream 

flow

(ft3/s)

Difference

(ft3/s) Excursion

11-10-92 990 2,600 1,064 1,536 No

11-10-92 1,005 2,600 1,064 1,536 No

11-10-92 1,020 2,600 1,064 1,536 No

11-10-92 1,035 2,590 1,064 1,526 No

11-10-92 1,050 2,590 1,064 1,526 No

11-10-92 1,065 2,590 1,064 1,526 No

11-10-92 1,080 2,590 1,064 1,526 No

11-10-92 1,095 2,590 1,064 1,526 No

11-10-92 1,110 2,590 1,064 1,526 No

11-10-92 1,125 2,590 1,064 1,526 No

11-10-92 1,140 2,580 1,064 1,516 No

11-10-92 1,155 2,580 1,064 1,516 No

11-10-92 1,170 2,580 1,064 1,516 No

11-10-92 1,185 2,580 1,064 1,516 No

11-10-92 1,200 2,580 1,064 1,516 No

11-10-92 1,215 2,580 1,064 1,516 No

11-10-92 1,230 2,580 1,064 1,516 No

11-10-92 1,245 2,570 1,064 1,506 No

11-10-92 1,260 2,570 1,064 1,506 No

11-10-92 1,275 2,570 1,064 1,506 No

11-10-92 1,290 2,570 1,064 1,506 No

11-10-92 1,305 2,570 1,064 1,506 No

11-10-92 1,320 2,550 1,064 1,486 No

11-10-92 1,335 2,550 1,064 1,486 No

11-10-92 1,350 2,550 1,064 1,486 No

11-10-92 1,365 2,540 1,064 1,476 No

11-10-92 1,380 2,540 1,064 1,476 No

11-10-92 1,395 2,540 1,064 1,476 No

11-10-92 1,410 2,540 1,064 1,476 No

11-10-92 1,425 2,530 1,064 1,466 No

11-10-92 1,440 2,530 1,064 1,466 No

Date Time

Unit 

streamflow 

(ft3

/s)

Instream 

flow

(ft3/s)

Difference

(ft3/s) Excursion

Table 9. Unit-streamflow and instream-flow values for gaging station Puyallup River at Puyallup (12101500) from October 26 through 

November 10, 1992—Continued

[Time is the number of minutes past midnight; difference is streamflow minus instream flow; excursion indicates streamflow is less than instream flow value for 

that day; ft3/s, cubic feet per second]
46 Trends In Streamflow and Comparisons with Instream Flows in the Lower Puyallup River Basin, Washington
Manuscript approved for publication, February 4, 2004

Prepared by the Publishing Group, U.S. Geological Survey, 

Washington Water Science Center, Tacoma, Washington

USGS Publishing staff

Judith A. Wayenberg

Bill Gibbs 

Bob Crist

Linda Rogers

For more information concerning the research in this report, contact the 

Washington Water Science Center Director, 

U.S. Geological Survey,1201 Pacific Avenue – Suite 600 

Tacoma, Washington 98402

http://wa.water.usgs.gov
i Go to the Master Page Named Left, Delete This Entry, and Keyboard the Title in Caps and Lower Case
3UMIOKA 4RENDSIN3TREAMmOWAND#OMPARISONS7ITH)NSTREAM&LOWSINTHE,OWER0UYALLUP2IVER"ASIN7ASHINGTON

0RINTEDONRECYCLEDPAPER

3)2