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
38 measurements from 1968-10-22 to 2009-01-01.
Over the record the level is decreasing at -11.83 ft per decade (p = 0.0, n = 35). 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, 1968-10-22 to 2009-01-01, 38 measurements. The record is decreasing at -11.83 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 | 290.0 ft |
| Perforated interval | 170.0–250.0 ft |
| Ground elevation | 3621.48 ft |
| Reported yield | 2000.0 gpm |
| Permit | 12550 |
| Location | 40.59000, -102.09000 |
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.