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Republican River

Division 1 · Water District 49 · As of 2026-08-26 11:10 MDT · 10 days ago
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Republican River on the ground — the ditches, wells, reservoirs and gages of Water District 49 · clicktap anything for its record

Browse this district’s ditches, gages, reservoirs, wells and springs as a list.

30% of normal flow, week of 2026-08-10
24 calls active on it right now

The South Fork Republican River is well below normal for early August -- 30% of normal flow. 24 calls stand against it right now; the most senior right calling dates to 1860.

9,181 well permits on file — not decreed rights
29% household or domestic use
232 ft median depth, 5,526 wells reporting

40% are constructed wells; 20% are tied to a decreed structure. A permit is the State Engineer's permission to drill and use a well, not a water right; most here are exempt household wells that sit outside the priority line and never needed a decree — three things called “well”. Turn on the Well permits chip on the map above to see where they are.

The Driller’s Atlas · Plate 2 A cross-section nobody surveyed

Every permitted well within a few miles of the line, drawn from the ground to its drilled depth as the driller filed it. The bright part of each stroke is the perforated casing — where the well actually takes water — coloured by the aquifer named on the permit. Nobody arranged these; the aquifers arrange themselves.

Hover or arrow through the strokes to read a well.

The same corridor as a table
Miles from AWells drawn Median depth (ft)With a screen Most-named aquiferNo depth filed

Bins run from end A to end B of the line. “Most-named aquifer” is the family most often named on permits in the bin, with its count; permits naming no aquifer are the majority of the file and are not a family.

Groundwater

22,599 water-level measurements across 1576 monitored well(s) — 0 alluvial, 1506 bedrock — plus 2 administered well(s) reporting metered pumping.

What is being counted

Observation wells and pumping wells are different populations and are never conflated: water levels come from monitored observation wells, and metered pumping comes from administered wells reporting through diversion records. Click any well to chart its own record.

Well map

3D aquifer x-ray

Every aquifer unit as its own head surface, animated through time.

How the surfaces are built, and what they are not

Alluvial water table on top, Denver Basin members (Dawson, Denver, Arapahoe, Laramie–Fox Hills) stacked beneath where measured, interpolated from measured water levels. Units are never mixed; a surface exists only inside its own unit's well coverage, with no extrapolation; thin epochs are suppressed and say why. Vertical scale is exaggerated for readability and z is head elevation in feet. These are measured heads, not a calibrated groundwater model.

Water-table trends

Of 317 well(s) with enough record for a trend test: 275 declining, 9 rising.

Fastest-declining wellsSettingft / decadeSpanp
HOFFMAN, R. bedrock -29.05 30 yr 0.0
NHP-EC-024 PURVIS FARMS INC. bedrock -20.41 66 yr 0.0
NHP-PL-067 (1954-1973) bedrock -19.92 19 yr 0.0002
NHP-EC-023 (1969-2021) bedrock -19.89 52 yr 0.0
NHP-EC-025 PURVIS FARMS INC. bedrock -19.35 63 yr 0.0
SC01004311BBD bedrock -18.47 21 yr 0.0001
NHP-AR-058 LIMING, RICHARD A. bedrock -15.8 25 yr 0.0013
NHP-EC-036 BUELL, LEON bedrock -15.43 57 yr 0.0

Wells labeled by administrative world before anything else is said about them: tributary alluvium participates in the priority system; designated-basin and Denver Basin bedrock aquifers are governed differently and are excluded from stream-connection reasoning. Read bedrock declines differently too: deep bedrock aquifers recharge negligibly on human timescales, so a falling bedrock level is storage mining — effectively permanent — not a drought response that a wet year undoes. All screens advisory.

Topology cross-check: 0 parent disagreements, 11 sizable streams not on this network (vs DWR's route framework — under review)

This flow network was built mechanically; DWR's Source Water Route Framework disagrees with it in the places below. Each row is a question a human reviewer has not yet answered — not an error verdict. Checked 0 streams, 0 agree. Know this water? Tell us →

Sizable streams DWR maps here that this network does not carry:

Landsman Creek (73 mi) · Hell Creek (65 mi) · Spring Creek (60 mi) · Buffalo Creek (60 mi) · Bonny Creek (53 mi) · Sand Creek (48 mi) · Duck Creek (35 mi) · North Sand Creek (15 mi)

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