Hydrohistorian
NHP-PL-119 HERTNEKY, DAVID & KATHERINE
Monitored well · 149851 · Division 1 · Water District 49
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
14 measurements from 2010-02-10 to 2026-02-16. Most recent water-level elevation 4261.8 ft, 84.2 ft below ground.
Over the record the level is no trend at 1.0 ft per decade (p = 1.0, n = 12). 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, 2010-02-10 to 2026-02-16, 14 measurements. The record is no trend at 1.0 feet per decade (p equals 1.0), 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 | 293.0 ft |
| Perforated interval | 203.0–293.0 ft |
| Ground elevation | 4346.0 ft |
| Permit | 11141 |
| Location | 39.21000, -102.45000 |
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.