Available data

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4 data types available - data from 2021-08-26 to 2026-08-11

1 data types available - data from 2023-08-11 to 2025-12-30

5 data types available - data from 2021-03-18 to 2026-06-17

77 Observed properties (data types) available - with data from 2021-04-05 to 2024-09-24

42 Sampling activities

1 data types available - data from 2023-08-11 to 2025-12-30

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Metadata Element	Location Metadata	Metadata Code
Agency	U.S. Geological Survey	USGS
Location identification number	011006988	n/a
Location name	MERRIMACK RIVER AT BATES BRIDGE NEAR HAVERHILL, MA	n/a
Site type	Estuary	ES
Decimal latitude (WGS84)	42.76360833333333	n/a
Decimal longitude (WGS84)	-71.03317222222222	n/a
Latitude-longitude method	Interpolated from digital map	N
Latitude-longitude accuracy	Accurate to + or - .1 sec (Differentially-Corrected GPS).	1
District	New Hampshire	33
State	Massachusetts	25
County	Essex County	009
Country	United States of America	n/a
Altitude of gage/land surface	0	n/a
Method altitude determined	Interpolated from Digital Elevation Model	N
Altitude accuracy	0.16 feet	n/a
Altitude datum	North American Vertical Datum of 1988	NAVD88
Subbasin hydrologic unit	Merrimack River	01070006
Drainage basin		n/a
Date of first construction		n/a
Drainage area		n/a
Contributing drainage area		n/a
Time zone abbreviation	EST	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