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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
410928074522801 370207 Walpack Twp 4 Obs NJ Permit Number 21-07721-5
Sand and gravel aquifers (glaciated regions)
Stratified Drift
Stratified Drift
LOCATION - Lat 41°09'28", long 74°52'28" referenced to North American Datum of 1927, Walpack Township, Sussex County, NJ, Hydrologic Unit 02040104, off Main St., about 800 ft east of Flat Brook, Wallpack Center.
GROUNDWATER RECORDS
WELL CHARACTERISTICS - Depth 55 ft. Upper casing diameter 6 in; top of first opening 46 ft, bottom of last opening 55 ft. Drilled observation well.
DATUM - Land-surface datum is 425.3 ft above National Geodetic Vertical Datum of 1929. Measuring point: Top of shelf, 3.4 ft above land-surface datum, Mar. 30, 1992 to present.
PERIOD OF RECORD - April 1991 to current year.
GAGE - Water-level recorder.
EXTREMES FOR PERIOD OF RECORD - Highest water level, 21.39 ft below land surface datum, Sep 9, 2011; lowest, 29.72 ft below land surface datum, Dec 9, 2001.
