Hydrohistorian
DB-045 WALLDEN,G. WELL "B"
Monitored well · 307 · Division 1 · Water District 2
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
38 measurements from 1988-04-22 to 2026-01-30. Most recent water-level elevation 6263.16 ft, 86.84 ft below ground.
Over the record the level is decreasing at -1.05 ft per decade (p = 0.0002, n = 38). 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, 1988-04-22 to 2026-01-30, 38 measurements. The record is decreasing at -1.05 feet per decade (p equals 0.0002), measured on water-level elevation. Rising elevation means more water. The values are downloadable as CSV from the link above.
The well itself
| Aquifer | UPPER DAWSON |
|---|---|
| Designated basin | DENVER BASIN |
| Ground elevation | 6350.0 ft |
| Location | 39.49000, -104.66000 |
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.