Washington Administrative Code
Title 173 - Ecology, Department of (See also Titles 197, 317, 372, and 508)
Chapter 173-532 - Water resources program for the Walla Walla River basin, WRIA-32
Section 173-532-025 - Establishment of stream management units

Stream Management Unit Name; Management Point (MP) No.; Control Station Gage No.

Control Station by River Mile (RM); Section; Township and Range; Latitude (Lat.) and Longitude (Long.)

Stream Management Reach Description

Mill Creek MP 1 (Mill Creek at Kooskooskie) USGS Gage No. 14013000

RM 21.2;

Section 12;

T6N, R37E;

46°00'29"N,

118°07'03"W

Mill Creek at confluence with Walla Walla River (Walla Walla River, RM 33) to headwaters, including tributaries.

Walla Walla River MP 5a (Walla Walla River at Detour Road) Department Gage No. 32A100

RM 32.4;

Section 31;

T7N, R35E;

46°02'36"N,

118°29'24"W

Walla Walla River, RM 32.4 (below confluence of Walla Walla River and Mill Creek) to state line at Walla Walla, including tributaries.

North Fork Touchet River MP 6a (North Fork Touchet above Dayton) Department Gage No. 32E050

RM 0.5;

Section 32;

T10N, R39E;

46°17'50"N, 117°57'04"W

Mouth of North Fork Touchet River to headwaters, including tributaries.

Touchet River

MP 11 (Touchet River at Bolles)

Department Gage No. 32B100

RM 40.4;

Section 7;

T9N, R37E;

46°16'27"N, 118°13'12"W

Touchet River, RM 40.1 to RM 54.9 (confluence of North Fork Touchet River and South Fork Touchet River), including tributaries, excluding North Fork Touchet River and its tributaries.