Hydrohistorian
NHP-WY-066 HANSEN, ALFRED
Monitored well · 399 · 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
40 measurements from 1977-09-07 to 2017-03-20. Most recent water-level elevation 4052.78 ft, 214.1 ft below ground.
Over the record the level is increasing at 1.47 ft per decade (p = 0.0185, 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, 1977-09-07 to 2017-03-20, 40 measurements. The record is increasing at 1.47 feet per decade (p equals 0.0185), 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 | 245.0 ft |
| Ground elevation | 4266.88 ft |
| Location | 40.29000, -102.87000 |
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.