USGS Water-Year Summary 2019
295652090020101 Or- 42
Coastal lowlands aquifer system
Gonzales-New Orleans Aquifer
LOCATION - Lat 29°56'52", long 90°02'01" referenced to North American Datum of 1927, in sec.16, T.13 S., R.12 E., Orleans Parish, LA, Hydrologic Unit 08090203,
WELL CHARACTERISTICS - Depth 775 ft. Upper casing diameter 8.00 in; top of first opening 664 ft, bottom of last opening 775 ft.
DATUM - Land-surface datum is 10 ft above National Geodetic Vertical Datum of 1929. Measuring point: Hole in wooden platform over well casing, 1.0 ft above land-surface datum, Dec. 11, 1952, to present.
PERIOD OF RECORD - Discrete measurements from 1942 and 1949 to present. Continuous record from December 1952 - June 1980; September 1989 to present.
GAGE - A logger recording measurements at 15-minute intervals.
COOPERATION - Louisiana Department of Transportation and Development, Public Works and Water Resources Division.
EXTREMES FOR PERIOD OF RECORD - Highest water level, 39.16 ft below land-surface datum (recorded) Apr 27, 2015. Lowest water level 140.48 ft below land-surface datum (measured) Sep 20, 1968.