Hydrohistorian
August P. Gumlick Tunnel near Jones Pass
Transbasin diversion gage · APGTUNCO · Division 1 · Water District 7 · Clear Creek County
What this gage meters
This is not a natural stream record. The August P. Gumlick Tunnel moves water from Williams Fork headwaters at Jones Pass (Div 5) into West Fork Clear Creek (Div 1), operated by Denver Water — so this record is a ledger of those deliveries. Trends here reflect operational and demand decisions, not the basin's hydrology, and the basin trends page marks it accordingly (⇆). All of Colorado's curated transbasin diversions are collected at /transbasin.
The record
Readings come from the weekly-refreshed cache, never fetched live — the date beside the value says exactly how fresh it is. The live gage is one click up.
Annual flow & trend
Where it sits
Location as DWR records it (user supplied).
Provenance
DWR station abbreviation APGTUNCO; recorded station name “AUGUST P. GUMLICK TUNNEL NEAR JONES PASS”; operated by DWR. Daily flows from the DWR HydroBase snapshot plus CDSS REST updates, refreshed on the weekly cycle. Trend statistics are Mann-Kendall (Hamed-Rao corrected) with Sen's slope in native cfs, the same numbers as the basin Trends tab.