250316-- Sandy Hook Sp1 Obs
U.S. Geological Survey
Located in Monmouth County, New Jersey, this groundwater monitoring location is associated with a water well in the Northern Atlantic Coastal Plain aquifer system.
Well Construction
| Depth | Description | |
|---|---|---|
| 0.0-371.0 ft | 8.0 in diameter none casing | |
| 371.0-397.0 ft | 8.0 in diameter screen |
| Depth | Lithology | Description |
|---|---|---|
| 0.0-3.0 ft | Other | Other |
| 3.0-29.0 ft | Sand | Sand |
| 29.0-38.0 ft | Clay | Clay |
| 38.0-65.0 ft | Sand | Sand |
| 65.0-80.0 ft | Clay | Clay |
| 80.0-108.0 ft | Sand & Gravel | Sand & Gravel |
| 108.0-110.0 ft | Clay | Clay |
| 110.0-140.0 ft | Sand & Gravel | Sand & Gravel |
| 140.0-142.0 ft | Caliche | Caliche |
| 142.0-163.0 ft | Sand | Sand |
| 163.0-166.0 ft | Sand & Clay | Sand & Clay |
| 166.0-203.0 ft | Sand | Sand |
| 203.0-206.0 ft | Clay | Clay |
| 206.0-216.0 ft | Sand | Sand |
| 216.0-219.0 ft | Sand | Sand |
| 219.0-280.0 ft | Clay | Clay |
| 280.0-296.0 ft | Sand | Sand |
| 296.0-300.0 ft | Clay | Clay |
| 300.0-345.0 ft | Sand | Sand |
| 345.0-365.0 ft | Clay | Clay |
| 365.0-403.0 ft | Sand | Sand |
| 403.0-410.0 ft | Clay | Clay |
| 410.0-440.0 ft | Clay, some Sand | Clay, some Sand |
-
Agency U.S. Geological Survey Site Name 250316-- Sandy Hook Sp1 Obs Site Number 402536073590501 Site Type WELL Lat/Long (NAD83) 40.4268, -73.9843 Well Depth 397 Feet Elevation (NGVD29) 10.91 ft Latitude 40.4267750800534 Longitude -73.9843047933145 Local Aquifer Name Old Bridge Sand Member of Magothy Formation (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 NJ WSC NWIS QWDATA DATABASE 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 -
-
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 19.94 14.61 8.64 1965-05-31 2025-12-10 1123 60.6 12.60 100.0 Statistics Calculated 2026-01-22 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 18.31 17.43 16.44 15.87 14.92 13.05 11.64 16 16 Feb 17.35 17.20 16.61 15.32 14.27 11.83 10.47 13 13 Mar 16.61 16.48 15.04 13.53 10.77 9.47 9.20 16 16 Apr 18.45 17.19 14.98 10.91 9.71 9.28 8.64 28 28 May 15.95 15.54 14.95 12.83 10.20 9.75 8.77 26 26 Jun 17.65 16.51 15.87 14.17 11.01 10.6 9.94 18 18 Jul 18.12 17.17 16.41 15.60 13.91 10.5 9.98 16 16 Aug 19.94 17.96 17.21 14.63 12.36 11.00 10.52 26 26 Sep 19.17 17.66 15.81 13.56 12.35 11.57 10.47 36 36 Oct 19.90 18.57 17.16 15.21 13.27 12.17 11.50 23 23 Nov 17.57 17.37 15.98 15.54 14.58 11.45 11.30 13 13 Dec 17.40 17.30 15.90 15.18 14.63 13.60 13.36 12 12 Statistics Calculated 2026-01-22 -
Operated in cooperation with:
