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
40 measurements from 1969-10-01 to 2010-02-06. Most recent water-level elevation 4379.19 ft, 147.8 ft below ground.
Over the record the level is decreasing at -2.59 ft per decade (p = 0.0001, 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, 1969-10-01 to 2010-02-06, 40 measurements. The record is decreasing at -2.59 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 | 216.0 ft |
| Perforated interval | 109.0–207.0 ft |
| Ground elevation | 4526.99 ft |
| Reported yield | 580.0 gpm |
| Permit | 13921 |
| Location | 39.19000, -102.64000 |
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.