Hydrohistorian
NHP-FR-043 HEERMANN, KENNETH
Monitored well · 467 · Division 1 · Water District 65
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
41 measurements from 1967-11-06 to 2026-01-12. Most recent water-level elevation 3528.71 ft, 184.8 ft below ground.
Over the record the level is decreasing at -13.14 ft per decade (p = 0.0, n = 40). 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, 1967-11-06 to 2026-01-12, 41 measurements. The record is decreasing at -13.14 feet per decade (p equals 0.0), 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 | 273.0 ft |
| Perforated interval | 133.0–273.0 ft |
| Ground elevation | 3713.51 ft |
| Reported yield | 1375.0 gpm |
| Permit | 9583 |
| Location | 40.60000, -102.24000 |
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.