Chehalis River Near Grand Mound, WA - 12027500

Continuous data

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April 13, 2025 - April 20, 2025

Gage height, feet [NAVD 1988 as of 5/10/2018]

Important Data may be provisional

Latest value

131.46 ft

Provisional

Apr 20, 2025

23:00:00 PM PDT

Selected

No data

Statistics for April 20, 2025 based on 38 years of data

Gage height, ft

low (1990)

3.49 ft

25th percentile

4.45 ft

median

5.86 ft

75th percentile

7.02 ft

mean

25.51 ft

high (2022)

134.32 ft

Available data

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Continuous data

2 data types available - data from 1987-10-01 to 2025-04-20

Continuous data are collected via automated sensors installed at a monitoring location.

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Data type

Data date range

Graphed

Gage height, feet [NAVD 1988 as of 5/10/2018]

2007-10-01 - 2025-04-20

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Daily median

Data for same time span in prior year

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Discharge, cubic feet per second

1987-10-01 - 2025-04-20

Daily data

3 data types available - data from 1928-10-01 to 2025-04-19

Field measurements - Coming soon

0 data types available

Discrete sample data

4 Observed properties (data types) available - with data from 1964-10-12 to 1964-12-23

2 Sampling activities

Important information about this monitoring location

Datum of gage is NAVD of 1988.

Location details and information

Metadata Element	Location Metadata	Metadata Code
Agency	U.S. Geological Survey	USGS
Site identification number	12027500	_n/a
Site name	CHEHALIS RIVER NEAR GRAND MOUND, WA	_n/a
Site type	Stream	ST
DMS latitude	464634	_n/a
DMS longitude	1230204	_n/a
Decimal latitude	46.7759343	_n/a
Decimal longitude	-123.0356919	_n/a
Latitude-longitude method	Interpolated from MAP.	M
Latitude-longitude accuracy	Accurate to + or - 1 sec.	S
Latitude-longitude datum	North American Datum of 1927	NAD27
Decimal Latitude-longitude datum	North American Datum of 1983	NAD83
District	Washington	53
State	Washington	53
County	Thurston County	067
Country	US	_n/a
Land net location description	NENES22 T15N R03W W	_n/a
Name of location map		_n/a
Scale of location map		_n/a
Altitude of Gage/land surface	0 feet	_n/a
Method altitude determined	Level or other surveyed method.	L
Altitude accuracy	05 feet	_n/a
Altitude datum	North American Vertical Datum of 1988	NAVD88
Subbasin hydrologic unit	Upper Chehalis	17100103
Drainage basin		_n/a
Topographic setting		_n/a
Flags for instruments at site	NNNNYNNNNNNNNNNNNNNNNNNNNNNNNN	_n/a
Date of first construction		_n/a
Date site established or inventoried		_n/a
Drainage area	895 square miles	_n/a
Contributing drainage area		_n/a
Time Zone abbreviation	PST	_n/a
Site honors Daylight Saving Time	Y	_n/a
Data reliability		_n/a
Data-other GW files	NNNNNNNN	_n/a
National aquifer		_n/a
Local aquifer		_n/a
Local aquifer type		_n/a
Well depth		_n/a
Hole depth		_n/a
Source of depth data		_n/a
Project number		_n/a

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Operated in cooperation with:

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Washington State Department of Ecology

Chehalis River Near Grand Mound, WA - 12027500

Continuous data

Available data

Continuous data

Daily data

Field measurements - Coming soon

Discrete sample data

Important information about this monitoring location

Location details and information

Monitoring locations with continuous data in last 120 days

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