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Important for you to know:

  • New to WDFN: see current water conditions throughout the state using the new State Pages. Visit the Louisiana page for an example. Filter by continuous data type and age of data, view latest values, and link to graphing options to explore the data further. You can update the state name in the URL to visit your State Page or read our announcement on the Water Data for the Nation blog to find links to all the state and territory pages.
Important Inventory Page

USGS Parameter Group Data Types Start Date End Date
Information Water-quality 1961-04-14 1961-04-14
Inorganics, Major, Non-metals Water-quality 1957-07-30 1961-04-14
Physical Water-quality 1957-07-30 1961-04-14
Water Data for the Nation inventory

Monitoring location 301030090471502 is associated with a Well in Ascension Parish, Louisiana. Water data back to 1957 are available online.

Metadata Element Location Metadata Metadata Code
Agency
U.S. Geological Survey USGS
Site identification number
301030090471502 n/a
Site name
An-91 n/a
Site type
Well
GW
DMS latitude 301030 n/a
DMS longitude 0904715 n/a
Decimal latitude 30.175198 n/a
Decimal longitude -90.7875944 n/a
Latitude-longitude method
Interpolated from MAP. M
Latitude-longitude accuracy
Accurate to + or - 10 sec. T
Latitude-longitude datum
North American Datum of 1927 NAD27
Decimal Latitude-longitude datum North American Datum of 1983 NAD83
District
Louisiana 22
State
Louisiana 22
County
Ascension Parish 005
Country US n/a
Land net location description S 15T10S R 4E n/a
Name of location map DONALDSONVILLE 187 n/a
Scale of location map 62500 n/a
Altitude of Gage/land surface 5.00 feet n/a
Method altitude determined Interpolated from topographic map. M
Altitude accuracy 5 feet n/a
Altitude datum
National Geodetic Vertical Datum of 1929 NGVD29
Subbasin hydrologic unit
08070204
Drainage basin
n/a
Topographic setting
n/a
Flags for instruments at site NNNNNNNNNNNNNNNNNNNNNNNNNNNNNN n/a
Date of first construction
19570726 n/a
Date site established or inventoried n/a
Drainage area
n/a
Contributing drainage area n/a
Time Zone abbreviation CST 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 NYNNNNNN n/a
National aquifer Coastal lowlands aquifer system S100CSLLWD
Local aquifer Norco Aquifer 112NORC
Local aquifer type
n/a
Well depth 326 feet n/a
Hole depth
326 feet n/a
Source of depth data n/a
Project number n/a