Hydrohistorian
NHP-MB-003 ANDERSON
Monitored well · 418 · 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
47 measurements from 1972-05-05 to 2026-01-06. Most recent water-level elevation 3653.59 ft, 230.0 ft below ground.
Over the record the level is decreasing at -6.14 ft per decade (p = 0.0002, n = 47). 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, 1972-05-05 to 2026-01-06, 47 measurements. The record is decreasing at -6.14 feet per decade (p equals 0.0002), 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 | 318.0 ft |
| Perforated interval | 253.0–318.0 ft |
| Ground elevation | 3883.59 ft |
| Reported yield | 800.0 gpm |
| Permit | 15970 |
| Location | 40.76000, -102.41000 |
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.