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 1987-01-01 to 2010-01-01.
Over the record the level is decreasing at -12.62 ft per decade (p = 0.0001, n = 19). 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, 1987-01-01 to 2010-01-01, 22 measurements. The record is decreasing at -12.62 feet per decade (p equals 0.0001), 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 | 324.0 ft |
| Perforated interval | 185.0–305.0 ft |
| Ground elevation | 3788.0 ft |
| Reported yield | 1200.0 gpm |
| Permit | 23597 |
| Location | 40.47000, -102.34000 |
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.