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Water-Year Summary for Site 410853073554001

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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.
Available Parameters
72019 Water level, depth LSD(Mean)  

Water year 2021: 2021-10-01 to 2022-09-30

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USGS Water-Year Summary 2021
410853073554001 Ro-543, at Rockland Lake NY
Early Mesozoic basin aquifers
Brunswick Formation
LOCATION - Lat 41°08'52.8", long 73°55'39.7" referenced to North American Datum of 1983, Rockland County, NY, Hydrologic Unit 02030103, at Rockland Lake.
WELL CHARACTERISTICS - Depth 153 ft. Upper casing diameter 6 in; top of first opening 22 ft, bottom of last opening 118 ft. Cased to 20.4 ft, open hole.
DATUM - Land-surface datum is 159.06 ft above North American Vertical Datum of 1988. Measuring point: Top of casing, 2.31 ft above land-surface datum, Jul. 26, 2016 to present; Top of shelter shelf, 2.44 ft above land-surface datum, Jul. 26, 2016 to present.  
PERIOD OF RECORD - October 2005 to current year.
GAGE - Water-stage recorder--15 minute; periodic manual measurements by USGS personnel.
REMARKS - Water level is affected by nearby seasonal pumping. Satellite water-level telemeter at station.
EXTREMES FOR PERIOD OF RECORD - Highest water level, 3.92 ft below land-surface datum, Mar. 24, 2011; lowest water level, 10.85 ft below land-surface datum, Oct. 7, 2005.