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Important Legacy real-time page

USGS Parameter Group Data Types Start Date End Date
Information Water-quality 2020-08-28 2023-07-26
Inorganics, Major, Non-metals Water-quality 2020-08-28 2023-04-14
Organics, PFAS Water-quality 2020-08-28 2020-10-27
Physical Daily Values, Unit Values, Water-quality 2012-08-22 2024-12-19
n/a Peak Measurements 1852-04-23 1951-04-05
n/a USGS Annual Water Data Reports Site 2012-01-01 2024-01-01
Water Data for the Nation inventory

Monitoring location 01100500 is associated with a Stream in Essex County, Massachusetts. Current conditions of Gage height are available. Water data back to 1852 are available online.

Metadata Element Location Metadata Metadata Code
Agency
U.S. Geological Survey USGS
Site identification number
01100500 n/a
Site name
MERRIMACK RIVER AT LAWRENCE, MA n/a
Site type
Stream
ST
DMS latitude 424217.4 n/a
DMS longitude 0710911.3 n/a
Decimal latitude 42.7048333 n/a
Decimal longitude -71.15313889 n/a
Latitude-longitude method
Interpolated from Digital MAP. N
Latitude-longitude accuracy
Accurate to + or - .1 sec (Differentially-Corrected GPS). 1
Latitude-longitude datum
North American Datum of 1983 NAD83
Decimal Latitude-longitude datum North American Datum of 1983 NAD83
District
Massachusetts 25
State
Massachusetts 25
County
Essex County 009
Country US n/a
Land net location description n/a
Name of location map n/a
Scale of location map n/a
Altitude of Gage/land surface 0.00 feet n/a
Method altitude determined G n/a
Altitude accuracy .01 feet n/a
Altitude datum
North American Vertical Datum of 1988 NAVD88
Subbasin hydrologic unit
Merrimack 010700
Drainage basin
n/a
Topographic setting
Flood plain
G
Flags for instruments at site YNNNYNNNNYNNNNNNNNNNNNNNNNNNNN n/a
Date of first construction
20120813 n/a
Date site established or inventoried 20120813 n/a
Drainage area
4672.00 square miles n/a
Contributing drainage area 4458.00 square miles n/a
Time Zone abbreviation EST n/a
Site honors Daylight Saving Time
Y n/a
Data reliability
Data have been checked by the reporting agency. C
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 00100 n/a