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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
301200090072400 L Pontchartrain at Crossover 4 near Mandeville, LA
LOCATION - Lat 30°11'58.7", long 90°07'21.9" referenced to North American Datum of 1983, St. Tammany Parish, LA, Hydrologic Unit 08090202, on the south side of Turnaround #4 of Causeway bridge over Lake Pontchartrain.
DRAINAGE AREA - N/A
SURFACE-WATER RECORDS
PERIOD OF RECORD - May 2016 to current.
GAGE - Water-stage recorder. Datum of Gage is NAVD88 GEOID12b EPOCH 2010.0000.
REMARKS - Satellite telemetry and rain gage at station.
EXTREMES FOR PERIOD OF RECORD - Maximum gage height, 6.73 ft, Aug. 29, 2021; minimum gage height, -1.96 ft, Apr. 09, 2022.
