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- Water-Year Summary reports summarize a year of hydrologic data in a printer-friendly format.
- For water years 2014 onward, choose a water year and parameter and an on-demand Water-Year Summary report will be generated.
- For water years 2006 through 2013, choose a water year and an Annual Water Data Report will be provided.
- For water years 2005 and earlier, Annual Water Data Reports may be available in digital format.
- Not all sites have reports available for every water year.
USGS Water-Year Summary 2024
295652090020101 Or- 42
Coastal lowlands aquifer system
Gonzales-New Orleans Aquifer
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,
GROUNDWATER RECORDS
WELL CHARACTERISTICS - Depth 775 ft. Upper casing diameter 8 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 December 2016.
GAGE - A logger recording measurements at 15-minute intervals. Quarterly water levels.
COOPERATION - Louisiana Department of Transportation and Development, Public Works and Water Resources Division.
EXTREMES FOR PERIOD OF RECORD - Highest water level, 34.05 ft below land-surface datum (recorded) Dec 14, 2016. Lowest water level 140.48 ft below land-surface datum (measured) Sep 20, 1968.
