Hydrohistorian
NHP-WY-034 PATTERSON, LONNY
Monitored well · 408 · Division 1 · Water District 65
Its well permit here · Well permit at DWR ↗ · DWR structure record ↗ · Its structure dossier here · Download levels (CSV)
High Plains / Ogallala
Effectively non-recharging in eastern Colorado; declines are storage depletion, a separate ledger line.
Because this aquifer does not recharge on a human timescale, a decline here is storage being removed, not a stream being short. It is kept out of the stream-depletion math for that reason.
Water-level record
48 measurements from 1963-05-26 to 2026-03-04. Most recent water-level elevation 4116.38 ft, 228.3 ft below ground.
Over the record the level is increasing at 1.37 ft per decade (p = 0.0001, n = 48). Mann–Kendall with the Hamed–Rao autocorrelation correction, on water-level elevation; rising elevation means more water.
Chart: water level at this well over time, 1963-05-26 to 2026-03-04, 48 measurements. The record is increasing at 1.37 feet per decade (p equals 0.0001), measured on water-level elevation. Rising elevation means more water. The values are downloadable as CSV from the link above.
The well itself
| Aquifer | OGALLALA |
|---|---|
| Designated basin | NORTHERN HIGH PLAINS |
| Total depth | 297.0 ft |
| Perforated interval | 232.0–297.0 ft |
| Ground elevation | 4344.68 ft |
| Reported yield | 1250.0 gpm |
| Permit | 4162 |
| Location | 40.14000, -102.95000 |
What this page is not
Monitoring records are irregular: measurements cluster where somebody chose to look, so a trend describes this well's record, not the aquifer as a whole. Levels are DWR's published measurements, unedited. A trend here is not a prediction, and it is not a determination about anyone's water right.