NHP-FR-001
Colorado Division of Water Resources
Located in Phillips County, Colorado, this groundwater monitoring location is associated with a water well in the High Plains aquifer.
Well Construction
| Depth | Description | |
|---|---|---|
| 0.0-160.0 ft | 18.0 in diameter steel casing | |
| 160.0-260.0 ft | 18.0 in diameter steel screen |
| Depth | Lithology | Description |
|---|---|---|
| 0.0-20.0 ft | HIGH PLAINS AQUIFER | TOPSOIL |
| 20.0-60.0 ft | HIGH PLAINS AQUIFER | SAND WITH CLAY/SILT |
| 60.0-64.0 ft | HIGH PLAINS AQUIFER | SAND WITH GRAVEL |
| 64.0-85.0 ft | HIGH PLAINS AQUIFER | SAND WITH CLAY/SILT |
| 85.0-162.0 ft | HIGH PLAINS AQUIFER | CLAY |
| 162.0-172.0 ft | HIGH PLAINS AQUIFER | SAND WITH GRAVEL |
| 172.0-181.0 ft | HIGH PLAINS AQUIFER | SAND WITH CLAY/SILT |
| 181.0-200.0 ft | HIGH PLAINS AQUIFER | SAND WITH GRAVEL |
| 200.0-209.0 ft | HIGH PLAINS AQUIFER | SAND WITH CLAY/SILT |
| 209.0-215.0 ft | HIGH PLAINS AQUIFER | SAND WITH CLAY/SILT |
| 215.0-225.0 ft | HIGH PLAINS AQUIFER | SAND WITH GRAVEL |
| 225.0-234.0 ft | HIGH PLAINS AQUIFER | CLAY |
| 234.0-260.0 ft | HIGH PLAINS AQUIFER | SAND WITH GRAVEL |
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Agency Colorado Division of Water Resources Site Name NHP-FR-001 Site Number 437 Site Type WELL Lat/Long (NAD83) 40.5128, -102.0849 Well Depth 260 Feet Elevation (NAVD88) 3593.97 ft Latitude 40.512781 Longitude -102.084917 Local Aquifer Name OGALLALA (None) National Aquifer Name High Plains aquifer (N100HGHPLN) Aquifer Type UNCONFINED Water-Level Well Type Surveillance 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 126.00 81.72 45.90 1962-04-13 2025-03-05 59 62.9 126.00 Statistics Calculated 2025-12-10 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 -
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