River and stream water quality monitoring
Ecology home > Environmental Assessment > Freshwater Monitoring > River and Stream Water Quality Monitoring >

Statewide water quality monitoring network

Statewide | Southwest Region | Northwest Region | Central Region | Eastern Region

map of Washington State
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193

Washington State

(193 stations total since WY 2008)
K E Y
 Long-term1
67 stations
 Basin2
126 stations sampled since 2008
 station IDstation name
01A050  Nooksack R @ Brennan 
01A120  Nooksack R @ No Cedarville 
01F070  SF Nooksack @ Potter Rd 
01N060  Bertrand Cr @ Rathbone Rd 
01N100  Bertrand @ 0 Ave 
03A060  Skagit R nr Mount Vernon 
03A080  Skagit R abv Sedro Woolley 
03B050  Samish R nr Burlington 
03B077  Samish R abv Parson Cr 
04A100  Skagit R @ Marblemount 
05A065  N Slough Stillaquamish@ Pioneer Hwy 
05A070  Stillaguamish R nr Silvana 
05A080  Stillaguamish R @ Blue Stilly Park 
05A090  SF Stillaguamish R @ Arlington 
05A110  SF Stillaguamish R nr Granite Falls 
05B070  NF Stillaguamish R @ Cicero 
05B110  NF Stillaguamish R nr Darrington 
05G050  Jim Cr @ Jordan Rd 
05L100  Church Cr @ 284th St 
05M050  Montague Cr @ Hwy 530 
07A090  Snohomish R @ Snohomish 
07A100  Snohomish R @ Short School Rd 
07B075  Pilchuck R @ Russel Rd 
07C070  Skykomish R @ Monroe 
07D050  Snoqualmie R nr Monroe 
07D130  Snoqualmie R @ Snoqualmie 
07P070  Patterson Ck nr Fall City 
07R050  French Cr nr Mouth 
08C070  Cedar R @ Logan St/Renton 
08C100  Cedar R @ RR Grade Rd 
08C110  Cedar R nr Landsburg 
08N070  Johns Cr @ Gene Coulon Park 
09A080  Green R @ Tukwila 
09A190  Green R @ Kanaskat 
09H090  Black R @ Monster Rd SW 
09L060  Walker Cr near mouth 
09M050  North Cr at Seahurst Pk 
09N050  Mullen Slough @ Frager Rd 
09Q060  Redondo Cr abv Marine View Dr S 
10A070  Puyallup R @ Meridian St 
10C095  White R @ R Street 
10G080  Hylebos Cr @ 8th St E 
10H070  Lake Tapps Tailrace @ E Valley Hwy 
10I050  Joe's Cr @ SR 509 
10J050  Lakota Cr @ Dumas Bay Center 
11A070  Nisqually R @ Nisqually 
12A110  Clover Cr abv Steilacoom Lk 
12B070  Leach Cr nr Steilacoom 
12C060  Flett Cr @ 75th St W 
12F090  Spanaway Cr @ Old Military Rd 
13A060  Deschutes R @ E St Bridge 
14C050  Happy Hollow Cr at WA106 
14D070  Sherwood Cr abv mouth 
15A070  Dewatto R nr Dewatto 
15B050  Chico Cr nr Chico 
15C070  Clear Cr @ Silverdale 
15D070  Tahuya R @ Tahuya River Rd 
15F050  Big Beef Cr @ Mouth 
15L050  Seabeck Cr @ mouth 
15M070  Llt Anderson Cr @ Anderson Hill Rd 
15N070  Stavis Cr nr Mouth 
16A070  Skokomish R nr Potlatch 
16B130  Hamma Hamma R @ Lena Creek Camp 
16C090  Duckabush R nr Brinnon 
17A060  Big Quilcene R nr mouth 
18B070  Elwha R nr Port Angeles 
18S070  CassaleryCreek@Taylor Ranch Rd 
19C060  West Twin R nr mouth 
19D070  East Twin R nr Mouth 
19E060  Deep Cr nr mouth 
20B070  Hoh R @ DNR Campground 
20E100  Twin Cr @ Upper Hoh Rd Br 
20F070  Lake Cr at Hwy101 
22A070  Humptulips R nr Humptulips 
22T070  Mox-Chehalis Cr. @ US 12 Hwy 12 
23A070  Chehalis R @ Porter 
23A160  Chehalis R @ Dryad 
23A170  Chehalis R nr Doty 
23E060  Black R @ Hwy 12 
23G070  SF Chehalis R @ Beaver Creek Rd 
24B090  Willapa R nr Willapa 
24B130  Willapa R @ Lebam 
24F070  Naselle R nr Naselle 
24K060  Forks Cr abv Hatchery (outfall) 
25B070  Grays R nr Grays River 
25C070  Elochoman R nr Cathlamet 
25D050  Germany Cr @ mouth 
25E060  Abernathy Cr nr mouth 
25E100  Abernathy Cr @ DNR 
25F060  Mill Cr nr mouth 
25F100  Mill Cr @ DNR 
25G060  Coal Cr @ Harmony Rd 
26B070  Cowlitz R @ Kelso 
26C073  Coweeman R @ 3802 Allen Street 
26G050  Lacamas Cr @ SR506 
27B070  Kalama R nr Kalama 
27D090  EF Lewis R nr Dollar Corner 
 station IDstation name
28B070  Washougal R @ Washougal 
28B085  Washougal R abv Ltl Washougal R 
100
28C070  Burnt Br Cr @ Mouth 
101
28D170  Salmon Cr @ NE 199th/Hill rd 
102
29B090  White Salmon R @ Husum St 
103
29D070  Rattlesnake Cr nr Mouth 
104
29M050  Trapper Creek @ NF 
105
31A070  Columbia R @ Umatilla 
106
31B110  Rock Cr @ Bickleton Hwy 
107
31C012  Alder Cr @ 6 Prong Rd Bridge 
108
31D010  Pine Cr @ One Mile Bridge 
109
31E060  Glade Cr @ SR14 
110
32A070  Walla Walla R nr Touchet 
111
32B075  Touchet R @ Cummins Rd 
112
33A050  Snake R nr Pasco 
113
34A070  Palouse R @ Hooper 
114
34A170  Palouse R @ Palouse 
115
34A200  Palouse R nr Stateline 
116
34B110  SF Palouse R @ Pullman 
117
35A150  Snake R @ Interstate Br 
118
35B060  Tucannon R @ Powers 
119
35D070  Asotin Cr @ 2nd Street 
120
35D120  NF Asotin Cr blw Lick Cr 
121
35F050  Pataha Cr near mouth 
122
36A070  Columbia R nr Vernita 
123
37A090  Yakima R @ Kiona 
124
37A100  Yakima R below Prosser 
125
37A190  Yakima R @ Parker 
126
37A205  Yakima R @ Nob Hill 
127
37E070  Wide Hollow Cr @ Union Gap 
128
37E100  Wide Hollow Cr @ 40th Ave 
129
37F080  Sulphur Cr @ Holaday Road 
130
37G050  Ahtanum Cr @ Fulbright Park 
131
37J060  Snipes Cr nr Mouth 
132
38A050  Naches R @ Yakima on US HWY 97 
133
39A050  Yakima R @ Harrison Bridge 
134
39A055  Yakima R @ Umtanum Cr Footbridge 
135
39A090  Yakima R nr Cle Elum 
136
39B090  Cle Elum R nr Roslyn 
137
39C150  WilsonCr@Sanders Rd 
138
39K060  Reecer Cr in Irene Rinehart Park 
139
39M050  Swauk Cr nr Cle Elum 
140
39M100  Swauk Cr @ Lauderdale Junction 
141
39R050  Umtanum Cr nr mouth 
142
41A070  Crab Cr nr Beverly 
143
41E070  Sand Hollow Cr on Hwy 26 
144
43A070  Crab Cr @ Irby 
145
45A070  Wenatchee R @ Wenatchee 
146
45A110  Wenatchee R nr Leavenworth 
147
45J070  Nason Cr nr mouth 
148
45K050  White R @ Road 6500 Bridge 
149
45L050  Little Wenatchee R @ 2 Rvr Grav Pit 
150
46A070  Entiat R nr Entiat 
151
48A070  Methow R nr Pateros 
152
48A075  Methow R nr Pateros @ Metal Br 
153
48A140  Methow R @ Twisp 
154
48A150  Methow R @ Winthrop 
155
48B070  Chewuch R @ Winthrop 
156
48D070  Twisp R nr Mouth 
157
48E070  Poorman Creek at Poorman Cutoff Rd 
158
49A070  Okanogan R @ Malott 
159
49A190  Okanogan R @ Oroville 
160
49B070  Similkameen R @ Oroville 
161
53A070  Columbia R @ Grand Coulee 
162
53C070  Hawk Cr @ Miles-Creston Rd 
163
54A070  Spokane R @ Long Lake 
164
54A090  Spokane R @ Ninemile Br 
165
54A120  Spokane R @ Riverside State Pk 
166
54A130  Spokane R @ Fort Wright Br 
167
54B100  Deep Creek @ Garfield Rd Bridge 
168
54C050  Coulee Creek @ N Brooks RD 
169
55B070  Little Spokane R nr Mouth 
170
56A070  Hangman Cr @ Mouth 
171
57A123  Spokane R @ Sandifer Bridge 
172
57A125  Spokane R blw Monroe Street 
173
57A140  Spokane R @ Plante's Ferry Park 
174
57A146  Spokane R @ Sullivan Rd 
175
57A148  Spokane R @ Barker Rd 
176
57A150  Spokane R @ Stateline Br 
177
57A240  Spokane R @ Lake Coeur d'Alene 
178
59A080  Colville R @ Greenwood Loop Rd 
179
59A110  Colville R @ Blue Cr 
180
59A140  Colville R @ Newton Rd 
181
59B200  Little Pend Oreille R nr NatWildRef 
182
59C060  Sheep Cr @ Deer Creek Rd 
183
59C070  Sheep Cr at Long Prairie Rd 
184
59D070  Hunters Creek at Hunters Inn 
185
60A070  Kettle R nr Barstow 
186
61A070  Columbia R @ Northport 
187
61B070  Deep Cr nr Mouth 
188
61C100  Onion Cr @ Widow-Hawks Rd 
189
61E070  Meadow Creek at Aladdin Rd 
190
62A090  Pend Oreille R @ Metaline Falls 
191
62A150  Pend Oreille R @ Newport 
192
62B070  Skookum Cr nr Mouth 
193
62C070  NF Sullivan Creek 

Descriptions of station types:

1. Long-term stations are sampled monthly every year. The goals for this monitoring are to reveal trends and characterize water quality.

2. Basin stations are sampled monthly for one year only. We may return to a basin station every five years. The goals for these stations are to characterize water quality and address specific needs for monitoring data.

Ecology logo  Washington State Department of Ecology

Last updated September 2015. Questions or comments on content may be sent to Markus Von Prause.
Questions or comments on presentation may be sent to Steve Barrett.