Click
to
hide
Water-Year
Summary
instructions
and
information
- 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 2025
07373278 Lake Saint John near Waterproof, LA
LOCATION - Lat 31°41'58", long 91°27'31" referenced to North American Datum of 1983, in sec.47, T.8 N., R.10 E., Concordia Parish, LA, Hydrologic Unit 08040306, approximately 7.5 miles northeast of Ferriday on State Highway 568, approximately 200 yards east of intersection with State Highway 569.
DRAINAGE AREA - 14.8 mi².
