Hydrohistorian
DB-121 COTTONWOOD D2
Monitored well · 4608 · Division 1 · Water District 8
Its well permit here · Well permit at DWR ↗ · Download levels (CSV)
Denver Basin bedrock
Confined sandstone aquifer; negligible human-timescale recharge — pumping is one-way storage mining.
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
20 measurements from 2012-03-05 to 2023-04-24. Most recent water-level elevation 4520.0 ft, 1270.0 ft below ground.
Over the record the level is no trend at 20.76 ft per decade (p = 0.3301, n = 20). 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, 2012-03-05 to 2023-04-24, 20 measurements. The record is no trend at 20.76 feet per decade (p equals 0.3301), measured on water-level elevation. Rising elevation means more water. The values are downloadable as CSV from the link above.
The well itself
| Aquifer | ARAPAHOE |
|---|---|
| Designated basin | DENVER BASIN |
| Total depth | 1750.0 ft |
| Perforated interval | 1270.0–1680.0 ft |
| Ground elevation | 5790.0 ft |
| Permit | 48214 |
| Location | 39.56000, -104.80000 |
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.