N 6702. 1
U.S. Geological Survey
Located in Nassau County, New York, this groundwater monitoring location is associated with a water well in the Northern Atlantic Coastal Plain aquifer system.
Well Construction
| Depth | Description | |
|---|---|---|
| 0.0-None ft | 4.0 in diameter steel casing | |
| 666.0-677.0 ft | screen |
No lithology data is available
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Agency U.S. Geological Survey Site Name N 6702. 1 Site Number 403517073430702 Site Type WELL Lat/Long (NAD83) 40.5881, -73.7179 Well Depth 677 Feet Elevation (NGVD29) 10.8 ft Latitude 40.5880555555556 Longitude -73.7179166666667 Local Aquifer Name Magothy Aquifer (None) National Aquifer Name Northern Atlantic Coastal Plain aquifer system (S100NATLCP) Aquifer Type CONFINED Water-Level Well Type Trend Water-Level Well Characteristics Known Changes Water Quality Network Additional info Link 1 -
Activity Start Date Activity Start Time Characteristic Name Measure Value Units Detection Limit Value Type Sample Fraction Method Name Analytical Method System Sample Method ID Sample Method ID Context Sample Method Name Activity Type Code Data Provided By -
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How do we calculate statistics?
Overall Water Level Statistics (Depth to water, feet below land surface) Lowest Water Level Median Water Level Highest Water Level First Measurement Date Last Measurement Date Number of Measurements Years of Record Latest Value Latest Percentile 17.38 15.07 10.93 1961-04-13 2025-04-17 7581 64.0 12.50 91.67 Statistics Calculated 2025-04-19 Monthly Water Level Statistics (Depth to water, feet below land surface) Month Lowest Median 10th Percentile 25th Percentile 50th Percentile 75th Percentile 90th Percentile Highest Median Number of Measurements Years of Record Jan 16.88 16.15 15.52 15.02 14.00 12.71 12.16 50 50 Feb 17.37 15.82 15.43 15.04 13.79 12.76 12.07 46 46 Mar 16.18 15.94 15.50 14.87 13.88 12.75 12.10 52 52 Apr 15.90 15.67 15.30 14.72 13.45 12.64 12.00 46 46 May 17.03 15.90 15.50 15.14 14.03 12.79 12.24 52 52 Jun 16.49 16.16 15.74 15.20 14.04 12.89 12.75 49 49 Jul 16.77 16.49 16.06 15.49 14.23 13.21 13.06 52 52 Aug 16.81 16.52 15.99 15.47 14.20 13.34 12.89 51 51 Sep 16.70 16.38 16.00 15.31 14.30 13.15 12.78 52 52 Oct 16.79 15.94 15.51 15.16 14.10 12.95 12.52 51 51 Nov 17.38 15.98 15.60 14.87 13.87 12.76 12.48 50 50 Dec 16.93 16.03 15.51 14.91 14.03 12.79 12.45 46 46 Statistics Calculated 2025-04-19 -
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