Hydrohistorian
NHP-PL-109 MCARTHUR, LARRY D. TRUST
Monitored well · 149922 · Division 1 · Water District 49
Its well permit here · Well permit at DWR ↗ · DWR structure record ↗ · Its structure dossier here · Download levels (CSV)
Source DWR administrative record · verify at DWR well record ↗ Source DWR administrative record · verify at DWR permit record ↗
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
15 measurements from 2011-02-12 to 2026-03-11. Most recent water-level elevation 4005.8 ft, 227.2 ft below ground.
Over the record the level is no trend at -0.89 ft per decade (p = 0.4874, n = 15). 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, 2011-02-12 to 2026-03-11, 15 measurements. The record is no trend at -0.89 feet per decade (p equals 0.4874), 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 | 333.0 ft |
| Perforated interval | 193.0–333.0 ft |
| Ground elevation | 4233.0 ft |
| Reported yield | 1200.0 gpm |
| Permit | 5840 |
| Location | 39.27000, -102.33000 |
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.