Hydrohistorian
NHP-AR-123 HEGER, CAROLYN K.
Monitored well · 777 · Division 1 · Water District 49
Its well permit here · Well permit at DWR ↗ · Download levels (CSV)
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
49 measurements from 1977-11-16 to 2026-01-14. Most recent water-level elevation 4982.58 ft, 64.5 ft below ground.
Over the record the level is increasing at 0.33 ft per decade (p = 0.0057, n = 49). 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, 1977-11-16 to 2026-01-14, 49 measurements. The record is increasing at 0.33 feet per decade (p equals 0.0057), 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 | 110.0 ft |
| Perforated interval | 60.0–110.0 ft |
| Ground elevation | 5047.08 ft |
| Reported yield | 500.0 gpm |
| Permit | 12921 |
| Location | 39.33000, -103.17000 |
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.