18N 31W16DDDB2 Tryon2
U.S. Geological Survey
Located in McPherson County, Nebraska, this groundwater monitoring location is associated with a water well in the High Plains aquifer.
Well Construction
| Depth | Description | |
|---|---|---|
| -3.0-120.0 ft | 2.5 in diameter pvc or plastic casing | |
| 120.0-130.0 ft | pvc, fbrgls/plst screen |
| Depth | Lithology | Description |
|---|---|---|
| 0.0-5.0 ft | Sand | Sand |
| 5.0-10.0 ft | Sand | Sand |
| 10.0-15.0 ft | Sand | Sand |
| 15.0-20.0 ft | Sand | Sand |
| 20.0-25.0 ft | Sand | Sand |
| 25.0-30.0 ft | Sand | Sand |
| 30.0-35.0 ft | Sand | Sand |
| 35.0-40.0 ft | Sand | Sand |
| 45.0-50.0 ft | Sand | Sand |
| 50.0-55.0 ft | Sand | Sand |
| 55.0-60.0 ft | Sand | Sand |
| 60.0-65.0 ft | Sand | Sand |
| 65.0-70.0 ft | Sand | Sand |
| 70.0-75.0 ft | Sand | Sand |
| 75.0-80.0 ft | Sand | Sand |
| 80.0-85.0 ft | Sand | Sand |
| 85.0-90.0 ft | Sand | Sand |
| 90.0-95.0 ft | Sand | Sand |
| 95.0-100.0 ft | Sand | Sand |
| 100.0-105.0 ft | Sand | Sand |
| 105.0-110.0 ft | Sand | Sand |
| 110.0-115.0 ft | Sand | Sand |
| 115.0-120.0 ft | Sand | Sand |
| 120.0-125.0 ft | Sand | Sand |
| 125.0-130.0 ft | Sand | Sand |
| 130.0-133.0 ft | Sand | Sand |
| 133.0-135.0 ft | Sand | Sand |
| 135.0-140.0 ft | Sand | Sand |
| 140.0-145.0 ft | Sand & Silt | Sand & Silt |
| 145.0-150.0 ft | Sand & Clay | Sand & Clay |
| 150.0-155.0 ft | Silt & Clay | Silt & Clay |
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Agency U.S. Geological Survey Site Name 18N 31W16DDDB2 Tryon2 Site Number 413130100531202 Site Type WELL Lat/Long (NAD83) 41.5251, -100.8884 Well Depth 130 Feet Elevation (NAVD88) 3219.62 ft Latitude 41.5250555555556 Longitude -100.888388888889 Local Aquifer Name Windblown Sand Deposits, Undifferentiated (None) National Aquifer Name High Plains aquifer (N100HGHPLN) Aquifer Type UNCONFINED Water-Level Well Type Trend Water-Level Well Characteristics Background 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 105.86 102.83 98.94 2006-09-27 2026-02-20 6966 19.4 99.03 100.0 Statistics Calculated 2026-02-22 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 105.57 105.41 104.71 102.91 102.03 99.74 99.29 19 19 Feb 105.57 105.40 104.79 102.93 101.95 99.67 99.22 19 19 Mar 105.56 105.35 104.81 102.88 101.86 99.63 99.18 19 19 Apr 105.47 105.37 104.79 102.84 101.77 99.59 99.17 19 19 May 105.47 105.41 104.79 102.78 101.65 99.52 99.13 19 19 Jun 105.47 105.39 104.71 102.77 101.57 99.48 99.06 19 19 Jul 105.50 105.34 104.68 102.77 101.52 99.44 99.08 19 19 Aug 105.50 105.29 104.69 102.77 101.46 99.40 99.07 19 19 Sep 105.55 105.32 104.67 102.88 101.67 99.41 99.06 20 20 Oct 105.60 105.35 104.66 102.89 101.63 99.42 99.07 20 20 Nov 105.53 105.39 104.70 102.89 101.56 99.37 99.05 20 20 Dec 105.60 105.37 104.73 102.96 102.17 99.80 99.27 19 19 Statistics Calculated 2026-02-22 -
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