Hydrohistorian
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
22 measurements from 1966-01-17 to 2006-12-19. Most recent water-level elevation 3609.07 ft, 215.5 ft below ground.
Over the record the level is no trend at -2.79 ft per decade (p = 0.2418, n = 22). 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, 1966-01-17 to 2006-12-19, 22 measurements. The record is no trend at -2.79 feet per decade (p equals 0.2418), 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 | 250.0 ft |
| Perforated interval | 170.0–252.0 ft |
| Ground elevation | 3824.57 ft |
| Reported yield | 800.0 gpm |
| Permit | 10529 |
| Location | 39.68000, -102.16000 |
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.