<a href="https://www.usgs.gov/centers/alaska-science-center/science/usgs-alaska-streamgage-datum-north-american-vertical-datum">USGS Alaska Streamgage Datum to North American Vertical Datum of 1988 Conversion Table</a>

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Available data

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Continuous data

2 data types available - data from 1987-10-01 to 2026-07-31

Daily data

3 data types available - data from 1966-06-17 to 2026-07-29

Field measurements

3 data types available - data from 1966-06-22 to 2026-07-22

Discrete sample data

533 Observed properties (data types) available - with data from 1966-11-02 to 2002-10-23

304 Sampling activities

Statistical tables for select daily data types

3 data types available - data from 1966-06-17 to 2026-07-29

Location details and information

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Metadata Element	Location Metadata	Metadata Code
Agency	U.S. Geological Survey	USGS
Location identification number	15275100	n/a
Location name	CHESTER C AT ARCTIC BOULEVARD AT ANCHORAGE AK	n/a
Site type	Stream	ST
Decimal latitude (WGS84)	61.205278	n/a
Decimal longitude (WGS84)	-149.895278	n/a
Latitude-longitude method	Interpolated from map	M
Latitude-longitude accuracy	Accurate to + or - 5 sec.	F
District	Alaska	02
State	Alaska	02
County	Anchorage Municipality	020
Country	United States of America	n/a
Altitude of gage/land surface	22.9 feet	n/a
Method altitude determined	GNSS2 - Level 2 Quality Survey Grade Global Navigation Satellite System	X
Altitude accuracy	0.1 feet	n/a
Altitude datum	North American Vertical Datum of 1988	NAVD88
Subbasin hydrologic unit	Anchorage	19020401
Drainage basin		n/a
Date of first construction		n/a
Drainage area	29.5 square miles	n/a
Contributing drainage area		n/a
Time zone abbreviation	AKST	n/a
Site honors Daylight Saving Time	Y	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

Monitoring location Chester C at Arctic Boulevard at Anchorage AK - USGS-15275100