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Important for you to know:

  • New to WDFN: see current water conditions throughout the state using the new State Pages. Filter by continuous data type and age of data, view latest values, and link to graphing options to explore the data further. To learn more, read our announcement on the Water Data for the Nation blog.
Important Inventory Page

USGS Parameter Group Data Types Start Date End Date
Physical Daily Values 1998-12-09 2000-11-07
n/a Site Visits 1998-12-10 2000-11-08
Water Data for the Nation inventory

Monitoring location 011020308 is associated with a Stream in Essex County, Massachusetts. Water data back to 1998 are available online.

Metadata Element Location Metadata Metadata Code
Agency
U.S. Geological Survey USGS
Site identification number
011020308 n/a
Site name
SAWMILL BROOK NEAR ROCKPORT, MA n/a
Site type
Stream
ST
DMS latitude 423818 n/a
DMS longitude 0703637 n/a
Decimal latitude 42.6384287 n/a
Decimal longitude -70.6097655 n/a
Latitude-longitude method
Mapping grade GPS unit (handheld accuracy range 12 to 40 ft) G
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
Massachusetts 25
State
Massachusetts 25
County
Essex County 009
Country US n/a
Land net location description n/a
Name of location map ROCKPORT n/a
Scale of location map 25000 n/a
Altitude of Gage/land surface 40 feet n/a
Method altitude determined Interpolated from topographic map. M
Altitude accuracy 10 feet n/a
Altitude datum
National Geodetic Vertical Datum of 1929 NGVD29
Subbasin hydrologic unit
Charles 01090001
Drainage basin
n/a
Topographic setting
n/a
Flags for instruments at site YNYNYNNNNYNNNNNNNNNNNNNNNNNNNN n/a
Date of first construction
n/a
Date site established or inventoried 19981029 n/a
Drainage area
0.53 square miles n/a
Contributing drainage area 0.53 square miles n/a
Time Zone abbreviation EST 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 442500100 n/a