South Platte: Greeley to Balzac
South Platte: Greeley to Balzac on the ground — the ditches, wells, reservoirs and gages of Water District 1 · clicktap anything for its record
The well-permit cells in view, as a table
Each row is one ~1-mile cell (0.02°) with the permits the file spots inside it, split into water-supply permits and monitoring holes (DWR’s two monitoring categories: drilled to look at the water, not to pump it). These are permits, not wells: a permit is a piece of paper, and the file does not say which were drilled. Spotting is the file’s own, about a mile at best, which is why the cells are no finer.
| Lat | Lon | Water-supply permits | Monitoring holes |
|---|
Browse this district’s ditches, gages, reservoirs, wells and springs as a list.
The South Platte River is critically low for late September -- 16% of normal flow. No call that the record places on it is active right now. DWR's statements do not settle whether 7 more calls reach it.
Schematic
Historical
Evolution of the network
Trends
Source Our computation, no independent reference · computed here from the screened DWR record Source Our computation, no independent reference · no independent reference; see /methods
This year, in context
In the weeks around 2026-09-27 (the newest reading on file), flows at the 28 ranked gages are running at a median 43% of their own long-term norm for this window — 22 below a typical year, 6 at or above. Driest relative to its record: NEW CACHE LOWER SAND CREEK RETURN, ranking 1st lowest of 7 years.
How this comparison is made
Each gage's mean flow over the 3 days either side of 2026-09-27, compared with the same window in every year of its own record — so a gage is only ever measured against itself, and gages with no record in the window are counted out rather than guessed.
Gage flow trend & changepoints
What counts as a trend here
Computed 2026-10-11 19:42 from 51 gage(s) with cached period-of-record data. The series is each gage's annual mean flow in cfsCubic feet per second, a rate of flow. One cfs running for a day is about 2 acre-feet. (years with ≥300 days of record). Mann-Kendall (trend, with the Hamed–Rao correction for serial correlation — persistence can otherwise fake significance) and Pettitt (changepoint) both require at least 8 years spanning at least 10 years of record. A gage below that reports no signal — which is not the same as “no change.” The %-per-decade figure is the same Sen slope divided by the gage's median annual flow, for comparing across streams of very different size; it is omitted for near-ephemeral channels where the median is too small to divide by honestly.
Of the 51 gages with enough record, 3 are trending down and 2 up, and 3 carry a detected shift. The clearest is Fort Morgan Canal near Wiggins, its annual mean flow changing -9.42 cfs per decade (-9.3% of its median annual flow) over 32 years (p=0.0010). The other 46 show no clear signal either way.
Drought history, cost, and the four-century context moved to the Drought tab.
| Gage | Trend | Change / decade cfs · % of median annual flow | Significance | Years | Changepoint |
|---|---|---|---|---|---|
|
▸
Fort Morgan Canal near Wiggins MORCANCO |
↓ decreasing | -9.42 cfs -9.3% | p<0.001 | 32 | ~2011 |
|
▸
Weldon Valley Ditch Return WELRETCO |
↓ decreasing | -2.93 cfs -22.3% | p=0.003 | 19 | ~2016 |
|
▸
South Platte River near Kersey PLAKERCO |
↑ increasing | +26.79 cfs +3.6% | p=0.011 | 123 | ~1968 |
|
▸
Empire Inlet at Reservoir EMPINLCO |
↓ decreasing | -11.22 cfs -14.2% | p=0.028 | 18 | — |
|
▸
Corona Ditch CORDITCO |
↑ increasing | +1.15 cfs +72.6% | p=0.029 | 14 | — |
46 other gage(s) show no significant trend or changepoint (not shown).
How the measurement network itself changed
This basin was not always measured the way it is today — the API-era record is dense and recent, the early record sparse. 37 gage(s) and 459 structure(s) report in 2026, but structure reporting only reached half its modern level around ~2009. Every historical claim below is checked against this: long-term shifts that co-move with the growth of the network carry an explicit measurement-evolution caution, and abandonment screens whose idleness begins before the modern reporting era are flagged †.
| Decade | Gages with data (median yr) | Structures reporting (median yr) |
|---|---|---|
| 1900s | 1 | 0 |
| 1910s | 1 | 0 |
| 1920s | 1 | 0 |
| 1930s | 2 | 0 |
| 1940s | 3 | 0 |
| 1950s | 7 | 12 |
| 1960s | 6 | 12 |
| 1970s | 2 | 22 |
| 1980s | 4 | 52 |
| 1990s | 8 | 88 |
| 2000s | 11 | 114 |
| 2010s | 21 | 396 |
| 2020s | 35 | 432 |
Mass-balance (network closure) trend
Structure divrec-history backfill coverage as of the last check: 5% of 6818 schematic-relevant structures. 0 year(s) clear the 30% coverage gate so far -- the trend activates automatically once qualifying years span a full decade. No action needed; the nightly backfill keeps extending the record.
Reach gain/loss shifts (1950–2026)
Mass-balance kinks computed for every summer month back to 1950 (2347 reach-snapshots) — which reaches gain or lose water, and how that has shifted across decades. Each shift is cross-checked against the observation record above: as more diversions became metered, "unaccounted" water shrinks mechanically, which can masquerade as a hydrologic shift.
- ILLINOIS DITCH: reach shifted from -1474 cfs to -513 cfs summer mean (more gaining, p=0.008, 16 yr) [alluvial valley: real alluvial aquifer -- a decades-long shift toward losing is the classic signature of alluvial pumping and urbanization] [19 alluvial wells within 2 mi of the gage; pooled water table +0.1 ft (1966–2026, no_trend)]
- SOUTH PLATTE RIVER NEAR WELDONA, CO: reach shifted from -247 cfs to +530 cfs summer mean (more gaining, p=0.000, 74 yr) [alluvial valley: real alluvial aquifer -- a decades-long shift toward losing is the classic signature of alluvial pumping and urbanization] [measurement-evolution caution: this shift co-moves with the growth of the gage/metering network (rho=0.74) -- part of it may be unaccounted water becoming accounted, not hydrologic change] [28 alluvial wells within 2 mi of the gage; pooled water table -3.3 ft (1949–2025, no_trend)]
- SOUTH PLATTE RIVER AT FORT MORGAN, CO: reach shifted from -98 cfs to +620 cfs summer mean (more gaining, p=0.000, 39 yr) [alluvial valley: real alluvial aquifer -- a decades-long shift toward losing is the classic signature of alluvial pumping and urbanization] [measurement-evolution caution: this shift co-moves with the growth of the gage/metering network (rho=0.73) -- part of it may be unaccounted water becoming accounted, not hydrologic change] [17 alluvial wells within 2 mi of the gage; pooled water table +0.8 ft (1962–2025, no_trend)]
- SOUTH PLATTE RIVER AT COOPER BRIDGE NEAR BALZAC: reach shifted from -455 cfs to +153 cfs summer mean (more gaining, p=0.046, 39 yr) [alluvial valley: real alluvial aquifer -- a decades-long shift toward losing is the classic signature of alluvial pumping and urbanization] [measurement-evolution caution: this shift co-moves with the growth of the gage/metering network (rho=0.54) -- part of it may be unaccounted water becoming accounted, not hydrologic change] [26 alluvial wells within 2 mi of the gage; pooled water table +0.2 ft (1966–2025, no_trend)]
- FORT MORGAN CANAL NEAR WIGGINS, CO: reach shifted from -16 cfs to +73 cfs summer mean (more gaining, p=0.020, 35 yr) [alluvial valley: real alluvial aquifer -- a decades-long shift toward losing is the classic signature of alluvial pumping and urbanization] [measurement-evolution caution: this shift co-moves with the growth of the gage/metering network (rho=0.68) -- part of it may be unaccounted water becoming accounted, not hydrologic change] [20 alluvial wells within 2 mi of the gage; pooled water table +0.2 ft (1966–2025, increasing)]
- SOUTH PLATTE RIVER AT MASTERS, CO.: reach shifted from -425 cfs to -63 cfs summer mean (more gaining, p=0.019, 28 yr) [alluvial valley: real alluvial aquifer -- a decades-long shift toward losing is the classic signature of alluvial pumping and urbanization] [26 alluvial wells within 2 mi of the gage; pooled water table +1.6 ft (1947–2025, no_trend)]
Groundwater now has its own tab: 6824 monitored well(s), water-table trends, stream corridors, and the advisory depletion screen.
Reservoirs now has its own tab: 38 reservoir(s), end-of-year storage back to 1950, click-to-chart histories.
Cross-gage pattern fingerprint
Over the 39-year window with full coverage (1988–2026), the dominant shared pattern across 3 gage(s) explains 97% of year-to-year variance (almost certainly a basin-wide climate/snowpack driver).
All gages in this window move with the shared pattern -- no localized outlier.
Structures most implicated by reconciliation (as of 2026-09-27)
Which structures' data absorbed the most correction when the current mass-balance snapshot was reconciled -- see the Historical tab for the full picture on any date.
- BROWN PYOTT DITCH (diversion): +3.9 cfs (3% of that reach's correction)
- PEIF PIPELINE (diversion): +3.9 cfs (3% of that reach's correction)
- DUPE WDID, SEE 0100523 (diversion): +3.9 cfs (3% of that reach's correction)
- LITCH SEEP DITCH (diversion): +3.9 cfs (3% of that reach's correction)
- PAWNEE RAW WTR RES 1 (diversion): +3.9 cfs (3% of that reach's correction)
- PAWNEE RAW WTR RES 2 (diversion): +3.9 cfs (3% of that reach's correction)
- SNYDER DITCH (diversion): +3.9 cfs (3% of that reach's correction)
- TREMONT DITCH (diversion): +3.9 cfs (3% of that reach's correction)
- A A SMITH DITCH (diversion): +3.9 cfs (3% of that reach's correction)
- LOWER PLATTE BEAVER D (diversion): +3.9 cfs (3% of that reach's correction)
Data provenance & quality
Where these numbers come from and how far they can be trusted. Grade C (3/6 points) — the components below are the finding; the letter alone is not. Sources: DWR HydroBase snapshot HydroBase_CO_20260928 (imported 2026-10-04) for history, plus the CDSS REST API for current conditions.
| Check | State | What was measured |
|---|---|---|
| gage freshness | stale | newest gage reading is 14 day(s) old (target 7) |
| diversion record | expected-lag | newest diversion record is 346 day(s) old (DWR publishes ~1 year in arrears) |
| structure coverage | sparse | 5% of schematic structures have data |
Independent check: PASS — 100.0000% agreement across 492,988 stored values re-checked against DWR's authoritative record (HydroBase_CO_20260707), over 20 structures. 0 disagreement(s) beyond a 0.01 cfs tolerance. Checked 2026-08-19; a rotating sample covers the whole basin across successive runs, and the structures this report cites are checked every time.
Federal cross-check: PASS — 99.95% day-level agreement with USGS's own published records for the same gages, across 17 co-listed station(s) and 114,052 overlapping days (within max(2%, 0.5 cfs) daily). Pre-1950 records at some gages carry known between-agency day-stamp and transcription differences — scored at each year's best ±1-day alignment; residual disagreement is real historical divergence, flagged for review.
51 gage(s) / 348,544 daily values (1901-05-01–2026-09-27); 765 structure(s) with diversion records; 7708 with decreed rights. Methodology has not yet had independent expert review — treat every figure as an advisory screen, not an administrative or legal conclusion.
Groundwater
Source DWR administrative record · verify at DWR groundwater wells ↗ Source DWR administrative record · verify at DWR well permits ↗
237,108 water-level measurements across 6824 monitored well(s) — 1967 alluvial, 3490 bedrock — plus 152 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 437 well(s) with enough record for a trend test: 171 declining, 59 rising.
| Fastest-declining wells | Setting | ft / decade | Span | p |
|---|---|---|---|---|
| ▸ DB-123 ELIZABETH KA-1 | bedrock | -115.92 | 31 yr | 0.016 |
| ▸ DB-100 BENNETT WELL #8 | bedrock | -113.38 | 38 yr | 0.0 |
| ▸ DB-003 5 M RANCH | bedrock | -41.66 | 54 yr | 0.0 |
| ▸ LAND, L. | bedrock | -39.35 | 41 yr | 0.0 |
| ▸ SHELTON, E. | bedrock | -31.27 | 43 yr | 0.0 |
| ▸ DB-036 SLINGERLAND, TABATHA | bedrock | -23.44 | 53 yr | 0.0 |
| ▸ SC00806513DC LDAW 12 | unknown | -23.21 | 33 yr | 0.0049 |
| ▸ SC00806417BBC DAWMAS21 | unknown | -17.83 | 21 yr | 0.0018 |
Stream corridors — the surface connection
Where a reach's gain or loss has shifted, the wells within two miles of its anchoring gage and what their water table did over the same era.
How the corridor is assembled
For each reach whose gain/loss has shifted (Trends tab): the wells within 2 miles of its anchoring gage, their pooled water-table history over the same era, and an advisory Glover screen of lagged stream depletion from nearby metered pumping. v1 proximity = distance to the reach's anchoring gage; segment-based reach join is a flagged upgrade.
ILLINOIS DITCH: 19 alluvial well(s) nearby; pooled water table +0.1 ft (1966–2026, no_trend, p=0.8769). Glover screen: 1.2 cfs of nearby metered alluvial pumping → est. lagged depletion 0.7–1.1 cfs (uncalibrated T/S ranges; flagged for SPDSS calibration, AWAS cross-check, and expert review — DWR's AWAS is the authority).
SOUTH PLATTE RIVER NEAR WELDONA, CO: 28 alluvial well(s) nearby; pooled water table -3.3 ft (1949–2025, no_trend, p=0.6307)
SOUTH PLATTE RIVER AT FORT MORGAN, CO: 17 alluvial well(s) nearby; pooled water table +0.8 ft (1962–2025, no_trend, p=0.1389). Glover screen: 0.8 cfs of nearby metered alluvial pumping → est. lagged depletion 0.6–0.8 cfs (uncalibrated T/S ranges; flagged for SPDSS calibration, AWAS cross-check, and expert review — DWR's AWAS is the authority).
SOUTH PLATTE RIVER AT COOPER BRIDGE NEAR BALZAC: 26 alluvial well(s) nearby; pooled water table +0.2 ft (1966–2025, no_trend, p=0.7125). Glover screen: 2.3 cfs of nearby metered alluvial pumping → est. lagged depletion 1.7–2.2 cfs (uncalibrated T/S ranges; flagged for SPDSS calibration, AWAS cross-check, and expert review — DWR's AWAS is the authority).
FORT MORGAN CANAL NEAR WIGGINS, CO: 20 alluvial well(s) nearby; pooled water table +0.2 ft (1966–2025, increasing, p=0.0139). Glover screen: 1.6 cfs of nearby metered alluvial pumping → est. lagged depletion 1.0–1.5 cfs (uncalibrated T/S ranges; flagged for SPDSS calibration, AWAS cross-check, and expert review — DWR's AWAS is the authority).
SOUTH PLATTE RIVER AT MASTERS, CO.: 26 alluvial well(s) nearby; pooled water table +1.6 ft (1947–2025, no_trend, p=0.507). Glover screen: 3.1 cfs of nearby metered alluvial pumping → est. lagged depletion 2.1–2.9 cfs (uncalibrated T/S ranges; flagged for SPDSS calibration, AWAS cross-check, and expert review — DWR's AWAS is the authority).
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.
55% are constructed wells; 20% tie to a decreed structure. A permit is permission to drill, not a water right; most here are exempt household wells. More in three things called “well”, or turn on the Well permits chip on the map above to see where they sit.
Permits issued here, by year
40,308 located water-supply permits with an issue date, 1900 to 2026; half of them had been issued by 1999, and the busiest year was 2001 with 1,212. The district’s 5,015 monitoring holes are counted apart: they are drilled to look, not to pump. A permit is not a well, and the year is the date the paper was issued, not a drilling date. The 58,481 above counts every permit on file here; 13,158 of them have no usable location or no issue date and are not in this chart.
water-supply permits issued that year monitoring holes, when shown 18 issued before 1950 are in the table, not the bars
The counts by year, as a table
| Year | Issued | Monitoring holes | Water-supply | Issued through that year |
|---|---|---|---|---|
| 1900 | 1 | 0 | 1 | 1 |
| 1903 | 2 | 0 | 2 | 3 |
| 1905 | 1 | 0 | 1 | 4 |
| 1906 | 4 | 0 | 4 | 8 |
| 1908 | 1 | 0 | 1 | 9 |
| 1910 | 6 | 0 | 6 | 15 |
| 1944 | 1 | 0 | 1 | 16 |
| 1947 | 1 | 0 | 1 | 17 |
| 1948 | 1 | 0 | 1 | 18 |
| 1953 | 135 | 0 | 135 | 153 |
| 1954 | 328 | 0 | 328 | 481 |
| 1955 | 592 | 0 | 592 | 1,073 |
| 1956 | 266 | 0 | 266 | 1,339 |
| 1957 | 311 | 0 | 311 | 1,650 |
| 1958 | 323 | 0 | 323 | 1,973 |
| 1959 | 328 | 0 | 328 | 2,301 |
| 1960 | 935 | 1 | 934 | 3,236 |
| 1961 | 98 | 0 | 98 | 3,334 |
| 1962 | 87 | 0 | 87 | 3,421 |
| 1963 | 175 | 0 | 175 | 3,596 |
| 1964 | 173 | 0 | 173 | 3,769 |
| 1965 | 192 | 0 | 192 | 3,961 |
| 1966 | 128 | 0 | 128 | 4,089 |
| 1967 | 139 | 0 | 139 | 4,228 |
| 1968 | 143 | 0 | 143 | 4,371 |
| 1969 | 132 | 0 | 132 | 4,503 |
| 1970 | 118 | 0 | 118 | 4,621 |
| 1971 | 178 | 0 | 178 | 4,799 |
| 1972 | 1,115 | 0 | 1,115 | 5,914 |
| 1973 | 596 | 0 | 596 | 6,510 |
| 1974 | 271 | 0 | 271 | 6,781 |
| 1975 | 213 | 0 | 213 | 6,994 |
| 1976 | 214 | 0 | 214 | 7,208 |
| 1977 | 388 | 0 | 388 | 7,596 |
| 1978 | 569 | 0 | 569 | 8,165 |
| 1979 | 593 | 0 | 593 | 8,758 |
| 1980 | 292 | 0 | 292 | 9,050 |
| 1981 | 391 | 0 | 391 | 9,441 |
| 1982 | 435 | 0 | 435 | 9,876 |
| 1983 | 426 | 1 | 425 | 10,302 |
| 1984 | 408 | 1 | 407 | 10,710 |
| 1985 | 386 | 6 | 380 | 11,096 |
| 1986 | 593 | 91 | 502 | 11,689 |
| 1987 | 632 | 26 | 606 | 12,321 |
| 1988 | 442 | 40 | 402 | 12,763 |
| 1989 | 603 | 62 | 541 | 13,366 |
| 1990 | 578 | 110 | 468 | 13,944 |
| 1991 | 516 | 66 | 450 | 14,460 |
| 1992 | 648 | 98 | 550 | 15,108 |
| 1993 | 880 | 64 | 816 | 15,988 |
| 1994 | 1,270 | 186 | 1,084 | 17,258 |
| 1995 | 1,008 | 140 | 868 | 18,266 |
| 1996 | 955 | 83 | 872 | 19,221 |
| 1997 | 938 | 135 | 803 | 20,159 |
| 1998 | 1,057 | 119 | 938 | 21,216 |
| 1999 | 1,192 | 135 | 1,057 | 22,408 |
| 2000 | 1,254 | 96 | 1,158 | 23,662 |
| 2001 | 1,274 | 62 | 1,212 | 24,936 |
| 2002 | 1,307 | 248 | 1,059 | 26,243 |
| 2003 | 1,237 | 146 | 1,091 | 27,480 |
| 2004 | 1,098 | 190 | 908 | 28,578 |
| 2005 | 1,171 | 120 | 1,051 | 29,749 |
| 2006 | 797 | 66 | 731 | 30,546 |
| 2007 | 939 | 107 | 832 | 31,485 |
| 2008 | 898 | 125 | 773 | 32,383 |
| 2009 | 763 | 94 | 669 | 33,146 |
| 2010 | 570 | 102 | 468 | 33,716 |
| 2011 | 577 | 124 | 453 | 34,293 |
| 2012 | 732 | 129 | 603 | 35,025 |
| 2013 | 555 | 81 | 474 | 35,580 |
| 2014 | 615 | 114 | 501 | 36,195 |
| 2015 | 707 | 116 | 591 | 36,902 |
| 2016 | 609 | 101 | 508 | 37,511 |
| 2017 | 669 | 78 | 591 | 38,180 |
| 2018 | 829 | 98 | 731 | 39,009 |
| 2019 | 792 | 111 | 681 | 39,801 |
| 2020 | 857 | 74 | 783 | 40,658 |
| 2021 | 937 | 158 | 779 | 41,595 |
| 2022 | 975 | 215 | 760 | 42,570 |
| 2023 | 776 | 230 | 546 | 43,346 |
| 2024 | 707 | 230 | 477 | 44,053 |
| 2025 | 788 | 315 | 473 | 44,841 |
| 2026 | 482 | 121 | 361 | 45,323 |
Every district in the file on one scale · the whole file, one year at a time · Plate 4 of the Driller’s Atlas.
What drillers reached, township by township
199 PLSS townships here where at least 5 water-supply permits naming the same aquifer filed a depth (31,369 permits in all; the 24 most-drilled are drawn, every one is in the table). Each column is one township, six miles square, on one scale to 2,600 ft below ground: a faint lane spans the 10th to 90th percentile of where the permits naming that aquifer stopped, the solid band their screens, the tick the median. This is the permit file’s view of the ground — the aquifer is the name the driller wrote, the band is where those holes ended — not a geologic map, and a township is as fine as it gets. Monitoring holes are left out. Columns are drawn to 3,000 ft at most; 1 band here runs deeper and is drawn to the bottom edge with an arrow, the numbers as filed in the table: T3N R55W other named (5 permits, 90th percentile 6,508 ft). 28 of these townships straddle a district line and are filed here because most of their permits are.
1,520 · 57% here
1,112 · 62% here
1,094
954 · 62% here
915 · 85% here
623
618
577
577
562
553 · 46% here
511
511
507
456 · 94% here
454
445
411 · 91% here
362
348
346
341
340
336
unnamed alluvium Dawson Denver Arapahoe Laramie-Fox Hills faint = where the permits naming it stopped (10th–90th pct) · solid = their screens · tick = median · arrow = runs deeper than the scale · ft below ground as filed
Every township here, as a table
| Township | Share of its permits in this district | Aquifer named | Permits with a depth | Drilled depth p10 / p50 / p90, ft | Screen top p10 / p50 / p90, ft | Screen bottom p10 / p50 / p90, ft |
|---|---|---|---|---|---|---|
| T11S R65W 6th PM | 57% | unnamed | 484 | 200 / 290 / 356 | 100 / 200 / 246 | 210 / 285 / 360 |
| T11S R65W 6th PM | 57% | Dawson | 1,008 | 240 / 300 / 400 | 65 / 170 / 240 | 240 / 300 / 400 |
| T11S R65W 6th PM | 57% | Denver | 22 | 300 / 1,342 / 1,690 | 140 / 1,050 / 1,150 | 300 / 1,360 / 1,670 |
| T11S R65W 6th PM | 57% | Arapahoe | 5 | 1,748 / 2,360 / 2,520 | — | — |
| T11S R64W 6th PM | 62% | unnamed | 364 | 167 / 260 / 399 | 80 / 142 / 240 | 180 / 260 / 395 |
| T11S R64W 6th PM | 62% | Dawson | 685 | 220 / 335 / 600 | 100 / 165 / 303 | 220 / 320 / 594 |
| T11S R64W 6th PM | 62% | Denver | 58 | 694 / 932 / 1,200 | 473 / 650 / 821 | 640 / 924 / 1,200 |
| T8S R64W 6th PM | 99% | unnamed | 349 | 157 / 270 / 415 | 112 / 199 / 302 | 180 / 282 / 415 |
| T8S R64W 6th PM | 99% | Dawson | 669 | 242 / 348 / 460 | 122 / 230 / 341 | 250 / 354 / 465 |
| T8S R64W 6th PM | 99% | Denver | 68 | 904 / 959 / 1,049 | 730 / 780 / 836 | 895 / 953 / 1,040 |
| T8S R64W 6th PM | 99% | Arapahoe | 6 | 1,155 / 1,943 / 2,124 | — | — |
| T1S R65W 6th PM | 62% | alluvium | 9 | 40 / 55 / 148 | — | — |
| T1S R65W 6th PM | 62% | unnamed | 159 | 60 / 78 / 521 | 32 / 52 / 422 | 60 / 80 / 640 |
| T1S R65W 6th PM | 62% | Denver | 39 | 126 / 160 / 280 | 80 / 101 / 166 | 136 / 160 / 274 |
| T1S R65W 6th PM | 62% | Dawson | 17 | 300 / 400 / 456 | 174 / 200 / 340 | 300 / 390 / 460 |
| T1S R65W 6th PM | 62% | Arapahoe | 694 | 280 / 400 / 699 | 160 / 240 / 495 | 280 / 400 / 700 |
| T1S R65W 6th PM | 62% | Laramie-Fox Hills | 36 | 1,185 / 1,285 / 1,355 | 1,060 / 1,116 / 1,170 | 1,191 / 1,282 / 1,359 |
| T6S R64W 6th PM | 85% | Dawson | 91 | 260 / 377 / 510 | 178 / 240 / 428 | 265 / 370 / 512 |
| T6S R64W 6th PM | 85% | unnamed | 204 | 194 / 420 / 560 | 159 / 303 / 438 | 239 / 420 / 561 |
| T6S R64W 6th PM | 85% | Denver | 611 | 400 / 520 / 645 | 260 / 360 / 494 | 400 / 520 / 636 |
| T6S R64W 6th PM | 85% | Arapahoe | 6 | 1,730 / 1,886 / 1,993 | — | — |
| T3N R57W 6th PM | 100% | unnamed | 600 | 80 / 110 / 140 | 55 / 86 / 115 | 86 / 116 / 143 |
| T3N R57W 6th PM | 100% | alluvium | 23 | 88 / 118 / 137 | 63 / 80 / 111 | 96 / 119 / 130 |
| T7S R64W 6th PM | 98% | unnamed | 191 | 140 / 300 / 441 | 116 / 215 / 352 | 200 / 312 / 460 |
| T7S R64W 6th PM | 98% | Dawson | 399 | 280 / 345 / 551 | 120 / 220 / 460 | 280 / 350 / 556 |
| T7S R64W 6th PM | 98% | Denver | 22 | 580 / 778 / 1,063 | 349 / 568 / 748 | 518 / 770 / 1,040 |
| T3N R58W 6th PM | 100% | unnamed | 563 | 80 / 120 / 175 | 31 / 90 / 144 | 80 / 122 / 180 |
| T3N R58W 6th PM | 100% | alluvium | 14 | 117 / 160 / 180 | 83 / 122 / 141 | 116 / 155 / 180 |
| T3S R62W 6th PM | 100% | alluvium | 15 | 44 / 57 / 65 | 28 / 45 / 48 | 48 / 56 / 65 |
| T3S R62W 6th PM | 100% | Denver | 7 | 54 / 180 / 222 | — | — |
| T3S R62W 6th PM | 100% | unnamed | 208 | 40 / 280 / 450 | 34 / 260 / 360 | 47 / 360 / 450 |
| T3S R62W 6th PM | 100% | Arapahoe | 341 | 280 / 360 / 420 | 180 / 260 / 300 | 300 / 360 / 420 |
| T4N R56W 6th PM | 100% | unnamed | 554 | 44 / 82 / 120 | 25 / 51 / 80 | 45 / 86 / 118 |
| T4N R56W 6th PM | 100% | alluvium | 6 | 79 / 106 / 235 | 30 / 52 / 110 | 66 / 107 / 256 |
| T11S R63W 6th PM | 46% | alluvium | 7 | 63 / 100 / 116 | 36 / 50 / 87 | 98 / 104 / 118 |
| T11S R63W 6th PM | 46% | unnamed | 174 | 89 / 270 / 490 | 60 / 176 / 380 | 150 / 292 / 516 |
| T11S R63W 6th PM | 46% | Dawson | 225 | 240 / 415 / 700 | 100 / 218 / 420 | 240 / 410 / 700 |
| T11S R63W 6th PM | 46% | Denver | 146 | 340 / 490 / 760 | 163 / 320 / 477 | 338 / 475 / 760 |
| T4S R62W 6th PM | 100% | alluvium | 27 | 50 / 58 / 70 | 30 / 40 / 41 | 50 / 60 / 71 |
| T4S R62W 6th PM | 100% | unnamed | 230 | 50 / 65 / 301 | 29 / 45 / 220 | 49 / 64 / 328 |
| T4S R62W 6th PM | 100% | Denver | 53 | 214 / 300 / 368 | 100 / 192 / 259 | 201 / 300 / 379 |
| T4S R62W 6th PM | 100% | Arapahoe | 197 | 285 / 360 / 424 | 160 / 240 / 320 | 280 / 360 / 440 |
| T4S R64W 6th PM | 100% | unnamed | 167 | 37 / 540 / 647 | 27 / 380 / 520 | 46 / 540 / 646 |
| T4S R64W 6th PM | 100% | Denver | 265 | 515 / 651 / 744 | 300 / 440 / 562 | 515 / 650 / 745 |
| T4S R64W 6th PM | 100% | Arapahoe | 72 | 893 / 985 / 1,128 | 750 / 808 / 904 | 893 / 972 / 1,050 |
| T1N R63W 6th PM | 100% | alluvium | 199 | 95 / 132 / 165 | 39 / 84 / 126 | 95 / 133 / 164 |
| T1N R63W 6th PM | 100% | unnamed | 101 | 95 / 140 / 504 | 64 / 106 / 535 | 102 / 140 / 598 |
| T1N R63W 6th PM | 100% | Arapahoe | 35 | 120 / 300 / 406 | 80 / 180 / 291 | 113 / 302 / 480 |
| T1N R63W 6th PM | 100% | Laramie-Fox Hills | 167 | 600 / 746 / 880 | 500 / 600 / 700 | 600 / 702 / 880 |
| T5N R64W 6th PM | 94% | unnamed | 427 | 30 / 56 / 94 | 14 / 36 / 63 | 30 / 61 / 94 |
| T5N R64W 6th PM | 94% | alluvium | 22 | 39 / 59 / 103 | 16 / 26 / 66 | 45 / 59 / 100 |
| T5N R64W 6th PM | 94% | Laramie-Fox Hills | 6 | 94 / 244 / 365 | — | — |
| T3N R56W 6th PM | 100% | unnamed | 443 | 50 / 87 / 225 | 33 / 55 / 104 | 54 / 88 / 162 |
| T3N R56W 6th PM | 100% | alluvium | 10 | 64 / 91 / 110 | 28 / 51 / 86 | 63 / 97 / 111 |
| T2N R63W 6th PM | 100% | unnamed | 147 | 60 / 95 / 270 | 45 / 58 / 152 | 59 / 90 / 204 |
| T2N R63W 6th PM | 100% | alluvium | 189 | 75 / 97 / 131 | 45 / 67 / 91 | 76 / 100 / 130 |
| T2N R63W 6th PM | 100% | Laramie-Fox Hills | 106 | 514 / 600 / 705 | 302 / 438 / 540 | 482 / 600 / 684 |
| T7N R65W 6th PM | 91% | unnamed | 387 | 22 / 40 / 322 | 9 / 20 / 240 | 22 / 40 / 360 |
| T7N R65W 6th PM | 91% | alluvium | 8 | 31 / 42 / 62 | — | — |
| T7N R65W 6th PM | 91% | Laramie-Fox Hills | 16 | 320 / 400 / 462 | 208 / 260 / 342 | 320 / 400 / 448 |
| T1N R64W 6th PM | 98% | alluvium | 17 | 40 / 58 / 78 | 15 / 20 / 56 | 40 / 45 / 79 |
| T1N R64W 6th PM | 98% | unnamed | 95 | 51 / 100 / 700 | 21 / 140 / 771 | 51 / 226 / 884 |
| T1N R64W 6th PM | 98% | Arapahoe | 88 | 240 / 415 / 550 | 90 / 260 / 400 | 256 / 410 / 552 |
| T1N R64W 6th PM | 98% | Laramie-Fox Hills | 158 | 818 / 906 / 1,097 | 651 / 774 / 940 | 802 / 901 / 1,081 |
| T4S R63W 6th PM | 100% | alluvium | 5 | 20 / 25 / 58 | — | — |
| T4S R63W 6th PM | 100% | unnamed | 70 | 146 / 400 / 600 | 200 / 300 / 411 | 262 / 435 / 609 |
| T4S R63W 6th PM | 100% | Denver | 204 | 310 / 440 / 614 | 163 / 297 / 450 | 308 / 440 / 614 |
| T4S R63W 6th PM | 100% | Arapahoe | 62 | 440 / 600 / 989 | 321 / 500 / 811 | 440 / 620 / 1,008 |
| T4S R63W 6th PM | 100% | Laramie-Fox Hills | 5 | 523 / 827 / 1,556 | — | — |
| T9S R63W 6th PM | 100% | unnamed | 118 | 100 / 246 / 441 | 72 / 230 / 380 | 140 / 310 / 466 |
| T9S R63W 6th PM | 100% | Dawson | 184 | 253 / 395 / 502 | 148 / 300 / 398 | 260 / 401 / 502 |
| T9S R63W 6th PM | 100% | Denver | 41 | 300 / 520 / 1,015 | 205 / 400 / 603 | 307 / 620 / 1,001 |
| T4N R57W 6th PM | 100% | unnamed | 319 | 43 / 70 / 113 | 21 / 41 / 74 | 49 / 73 / 113 |
| T4N R57W 6th PM | 100% | alluvium | 21 | 56 / 70 / 96 | 22 / 36 / 90 | 46 / 65 / 108 |
| T4N R58W 6th PM | 100% | alluvium | 5 | 30 / 52 / 106 | — | — |
| T4N R58W 6th PM | 100% | unnamed | 335 | 36 / 67 / 125 | 20 / 47 / 95 | 37 / 68 / 126 |
| T8S R63W 6th PM | 100% | alluvium | 17 | 22 / 63 / 141 | 17 / 30 / 91 | 40 / 62 / 140 |
| T8S R63W 6th PM | 100% | unnamed | 119 | 127 / 295 / 475 | 94 / 204 / 356 | 136 / 301 / 480 |
| T8S R63W 6th PM | 100% | Dawson | 182 | 186 / 344 / 438 | 101 / 241 / 340 | 232 / 355 / 440 |
| T8S R63W 6th PM | 100% | Denver | 16 | 252 / 762 / 1,020 | 314 / 570 / 679 | 381 / 914 / 1,020 |
| T8N R66W 6th PM | 78% | alluvium | 5 | 37 / 40 / 43 | 20 / 21 / 30 | 37 / 40 / 43 |
| T8N R66W 6th PM | 78% | unnamed | 315 | 30 / 90 / 600 | 20 / 140 / 392 | 32 / 280 / 614 |
| T8N R66W 6th PM | 78% | Laramie-Fox Hills | 11 | 200 / 400 / 680 | 134 / 200 / 620 | 200 / 300 / 680 |
| T10S R64W 6th PM | 100% | alluvium | 15 | 34 / 55 / 80 | 14 / 28 / 77 | 42 / 65 / 120 |
| T10S R64W 6th PM | 100% | unnamed | 105 | 82 / 241 / 386 | 40 / 156 / 297 | 95 / 260 / 387 |
| T10S R64W 6th PM | 100% | Dawson | 200 | 240 / 360 / 450 | 120 / 255 / 338 | 252 / 361 / 454 |
| T8N R65W 6th PM | 100% | alluvium | 5 | 21 / 31 / 36 | — | — |
| T8N R65W 6th PM | 100% | unnamed | 314 | 20 / 32 / 380 | 10 / 22 / 320 | 22 / 37 / 425 |
| T3S R63W 6th PM | 100% | alluvium | 11 | 30 / 36 / 43 | 14 / 17 / 25 | 30 / 38 / 44 |
| T3S R63W 6th PM | 100% | Dawson | 6 | 120 / 130 / 310 | — | — |
| T3S R63W 6th PM | 100% | unnamed | 134 | 40 / 300 / 478 | 32 / 220 / 381 | 59 / 320 / 495 |
| T3S R63W 6th PM | 100% | Denver | 59 | 260 / 355 / 440 | 122 / 200 / 300 | 260 / 348 / 440 |
| T3S R63W 6th PM | 100% | Arapahoe | 90 | 378 / 492 / 576 | 280 / 360 / 435 | 391 / 485 / 533 |
| T3S R63W 6th PM | 100% | more than one named | 11 | 526 / 613 / 660 | 74 / 186 / 295 | 402 / 586 / 630 |
| T3S R63W 6th PM | 100% | Laramie-Fox Hills | 8 | 1,098 / 1,486 / 1,625 | 568 / 1,220 / 1,309 | 659 / 1,448 / 1,480 |
| T2N R64W 6th PM | 99% | alluvium | 51 | 25 / 25 / 25 | 15 / 15 / 15 | 25 / 25 / 25 |
| T2N R64W 6th PM | 99% | unnamed | 89 | 36 / 650 / 804 | 120 / 600 / 658 | 212 / 704 / 812 |
| T2N R64W 6th PM | 99% | Laramie-Fox Hills | 171 | 640 / 785 / 902 | 419 / 600 / 720 | 620 / 750 / 900 |
| T4N R64W 6th PM | 87% | alluvium | 6 | 48 / 64 / 110 | 18 / 20 / 76 | 46 / 60 / 98 |
| T4N R64W 6th PM | 87% | unnamed | 229 | 20 / 68 / 165 | 3 / 40 / 98 | 10 / 65 / 161 |
| T4N R64W 6th PM | 87% | Laramie-Fox Hills | 76 | 180 / 300 / 410 | 90 / 170 / 240 | 180 / 278 / 400 |
| T4S R61W 6th PM | 100% | alluvium | 38 | 64 / 91 / 120 | 32 / 52 / 73 | 66 / 100 / 120 |
| T4S R61W 6th PM | 100% | unnamed | 91 | 50 / 94 / 220 | 24 / 40 / 153 | 51 / 95 / 244 |
| T4S R61W 6th PM | 100% | Arapahoe | 82 | 172 / 245 / 374 | 80 / 150 / 260 | 160 / 261 / 360 |
| T4S R61W 6th PM | 100% | Laramie-Fox Hills | 90 | 615 / 680 / 751 | 503 / 562 / 639 | 615 / 676 / 738 |
| T4N R59W 6th PM | 100% | unnamed | 286 | 50 / 154 / 218 | 54 / 107 / 159 | 90 / 154 / 211 |
| T4N R59W 6th PM | 100% | alluvium | 13 | 88 / 160 / 220 | 56 / 70 / 138 | 89 / 100 / 202 |
| T4N R55W 6th PM | 100% | unnamed | 296 | 54 / 82 / 110 | 28 / 54 / 79 | 66 / 85 / 103 |
| T3N R60W 6th PM | 100% | alluvium | 129 | 105 / 145 / 189 | 60 / 90 / 129 | 103 / 144 / 190 |
| T3N R60W 6th PM | 100% | unnamed | 150 | 110 / 150 / 200 | 71 / 110 / 150 | 104 / 140 / 186 |
| T7N R64W 6th PM | 100% | unnamed | 207 | 316 / 400 / 450 | 206 / 300 / 340 | 330 / 382 / 440 |
| T7N R64W 6th PM | 100% | Laramie-Fox Hills | 74 | 340 / 400 / 447 | 263 / 300 / 326 | 347 / 400 / 450 |
| T4N R60W 6th PM | 100% | alluvium | 39 | 59 / 120 / 200 | 35 / 120 / 178 | 64 / 150 / 202 |
| T4N R60W 6th PM | 100% | unnamed | 240 | 49 / 161 / 231 | 27 / 124 / 193 | 57 / 172 / 235 |
| T7S R61W 6th PM | 100% | Denver | 31 | 300 / 385 / 640 | 139 / 265 / 526 | 299 / 396 / 646 |
| T7S R61W 6th PM | 100% | unnamed | 75 | 89 / 440 / 646 | 74 / 339 / 526 | 116 / 480 / 646 |
| T7S R61W 6th PM | 100% | Arapahoe | 159 | 499 / 640 / 778 | 400 / 500 / 594 | 500 / 640 / 770 |
| T5S R62W 6th PM | 100% | alluvium | 18 | 44 / 62 / 86 | 30 / 41 / 60 | 60 / 67 / 98 |
| T5S R62W 6th PM | 100% | unnamed | 77 | 50 / 75 / 312 | 35 / 61 / 237 | 51 / 82 / 354 |
| T5S R62W 6th PM | 100% | Denver | 142 | 260 / 360 / 400 | 120 / 220 / 300 | 260 / 360 / 402 |
| T5S R62W 6th PM | 100% | Arapahoe | 18 | 351 / 468 / 579 | 122 / 360 / 417 | 339 / 468 / 577 |
| T1S R64W 6th PM | 100% | Denver | 14 | 171 / 235 / 274 | 100 / 120 / 200 | 171 / 235 / 270 |
| T1S R64W 6th PM | 100% | unnamed | 55 | 170 / 300 / 515 | 95 / 235 / 418 | 170 / 365 / 606 |
| T1S R64W 6th PM | 100% | Arapahoe | 166 | 300 / 400 / 610 | 156 / 260 / 443 | 300 / 400 / 634 |
| T1S R64W 6th PM | 100% | Laramie-Fox Hills | 14 | 1,087 / 1,181 / 1,248 | 993 / 1,042 / 1,120 | 1,090 / 1,168 / 1,328 |
| T6N R64W 6th PM | 100% | alluvium | 9 | 40 / 50 / 248 | — | — |
| T6N R64W 6th PM | 100% | unnamed | 227 | 29 / 70 / 400 | 14 / 66 / 238 | 27 / 185 / 460 |
| T6N R64W 6th PM | 100% | Laramie-Fox Hills | 12 | 93 / 345 / 709 | 39 / 155 / 274 | 93 / 306 / 570 |
| T9N R66W 6th PM | 99% | unnamed | 228 | 38 / 375 / 660 | 30 / 280 / 580 | 62 / 380 / 660 |
| T9N R66W 6th PM | 99% | Laramie-Fox Hills | 5 | 432 / 680 / 760 | — | — |
| T1N R60W 6th PM | 100% | alluvium | 121 | 84 / 98 / 120 | 39 / 58 / 80 | 83 / 98 / 120 |
| T1N R60W 6th PM | 100% | unnamed | 101 | 79 / 105 / 121 | 44 / 63 / 97 | 86 / 102 / 118 |
| T1N R60W 6th PM | 100% | Laramie-Fox Hills | 7 | 91 / 240 / 423 | — | — |
| T9S R64W 6th PM | 100% | alluvium | 7 | 33 / 37 / 70 | — | — |
| T9S R64W 6th PM | 100% | unnamed | 94 | 36 / 216 / 364 | 64 / 161 / 274 | 124 / 250 / 398 |
| T9S R64W 6th PM | 100% | Dawson | 122 | 201 / 302 / 565 | 95 / 181 / 454 | 197 / 301 / 576 |
| T6S R63W 6th PM | 100% | alluvium | 5 | 40 / 62 / 78 | — | — |
| T6S R63W 6th PM | 100% | unnamed | 29 | 39 / 240 / 528 | 88 / 180 / 317 | 200 / 298 / 576 |
| T6S R63W 6th PM | 100% | Dawson | 9 | 256 / 365 / 580 | 160 / 298 / 494 | 256 / 365 / 580 |
| T6S R63W 6th PM | 100% | Denver | 174 | 243 / 500 / 680 | 100 / 280 / 537 | 212 / 485 / 700 |
| T5S R61W 6th PM | 100% | alluvium | 7 | 60 / 64 / 96 | — | — |
| T5S R61W 6th PM | 100% | unnamed | 52 | 62 / 178 / 455 | 46 / 143 / 394 | 63 / 220 / 556 |
| T5S R61W 6th PM | 100% | Arapahoe | 128 | 228 / 315 / 433 | 100 / 180 / 300 | 224 / 322 / 420 |
| T5S R61W 6th PM | 100% | Denver | 6 | 172 / 338 / 553 | 122 / 220 / 440 | 172 / 338 / 550 |
| T5S R61W 6th PM | 100% | Laramie-Fox Hills | 23 | 687 / 777 / 856 | 594 / 660 / 720 | 662 / 748 / 858 |
| T3S R61W 6th PM | 100% | alluvium | 74 | 82 / 104 / 120 | 35 / 60 / 81 | 85 / 101 / 123 |
| T3S R61W 6th PM | 100% | unnamed | 56 | 74 / 112 / 583 | 30 / 70 / 120 | 62 / 100 / 215 |
| T3S R61W 6th PM | 100% | Arapahoe | 33 | 110 / 260 / 384 | 60 / 120 / 305 | 110 / 250 / 395 |
| T3S R61W 6th PM | 100% | Laramie-Fox Hills | 55 | 517 / 580 / 698 | 420 / 500 / 585 | 515 / 570 / 680 |
| T2N R62W 6th PM | 100% | alluvium | 65 | 73 / 89 / 120 | 20 / 60 / 76 | 78 / 91 / 121 |
| T2N R62W 6th PM | 100% | unnamed | 108 | 70 / 100 / 363 | 33 / 75 / 244 | 66 / 97 / 389 |
| T2N R62W 6th PM | 100% | Laramie-Fox Hills | 41 | 375 / 480 / 620 | 258 / 360 / 462 | 398 / 487 / 620 |
| T6N R63W 6th PM | 100% | unnamed | 173 | 36 / 54 / 300 | 20 / 55 / 192 | 39 / 160 / 360 |
| T6N R63W 6th PM | 100% | Laramie-Fox Hills | 28 | 174 / 300 / 350 | 96 / 120 / 150 | 185 / 300 / 350 |
| T1S R60W 6th PM | 100% | alluvium | 47 | 84 / 102 / 137 | 40 / 68 / 98 | 86 / 112 / 142 |
| T1S R60W 6th PM | 100% | unnamed | 132 | 83 / 117 / 135 | 34 / 60 / 97 | 83 / 116 / 130 |
| T1S R60W 6th PM | 100% | Laramie-Fox Hills | 6 | 182 / 290 / 375 | 60 / 118 / 140 | 182 / 290 / 385 |
| T4N R61W 6th PM | 99% | Laramie-Fox Hills | 6 | 62 / 74 / 90 | — | — |
| T4N R61W 6th PM | 99% | alluvium | 24 | 50 / 85 / 110 | 36 / 55 / 69 | 76 / 95 / 121 |
| T4N R61W 6th PM | 99% | unnamed | 156 | 66 / 92 / 136 | 32 / 60 / 94 | 74 / 92 / 132 |
| T5S R63W 6th PM | 100% | Denver | 111 | 321 / 460 / 635 | 200 / 300 / 500 | 321 / 470 / 634 |
| T5S R63W 6th PM | 100% | unnamed | 54 | 30 / 475 / 636 | 13 / 340 / 536 | 50 / 530 / 658 |
| T5S R63W 6th PM | 100% | Arapahoe | 11 | 600 / 840 / 1,350 | 370 / 670 / 815 | 590 / 840 / 1,079 |
| T3N R59W 6th PM | 100% | unnamed | 156 | 74 / 124 / 185 | 45 / 96 / 149 | 77 / 133 / 180 |
| T3N R59W 6th PM | 100% | alluvium | 21 | 77 / 146 / 165 | 19 / 78 / 125 | 72 / 139 / 163 |
| T10S R63W 6th PM | 99% | unnamed | 54 | 53 / 232 / 415 | 118 / 200 / 295 | 224 / 322 / 531 |
| T10S R63W 6th PM | 99% | Denver | 18 | 193 / 328 / 522 | 115 / 228 / 309 | 223 / 336 / 463 |
| T10S R63W 6th PM | 99% | Dawson | 97 | 218 / 335 / 480 | 94 / 188 / 375 | 239 / 335 / 478 |
| T2N R60W 6th PM | 100% | unnamed | 79 | 78 / 126 / 155 | 55 / 90 / 122 | 78 / 130 / 162 |
| T2N R60W 6th PM | 100% | alluvium | 85 | 95 / 130 / 155 | 45 / 70 / 99 | 92 / 127 / 150 |
| T2N R60W 6th PM | 100% | Laramie-Fox Hills | 8 | 133 / 140 / 276 | — | — |
| T2S R63W 6th PM | 100% | unnamed | 28 | 136 / 238 / 425 | 82 / 184 / 300 | 145 / 268 / 408 |
| T2S R63W 6th PM | 100% | Denver | 25 | 257 / 280 / 390 | 140 / 200 / 292 | 257 / 280 / 390 |
| T2S R63W 6th PM | 100% | Arapahoe | 114 | 300 / 400 / 560 | 180 / 288 / 461 | 300 / 390 / 562 |
| T7N R63W 6th PM | 98% | Laramie-Fox Hills | 18 | 220 / 292 / 422 | 135 / 225 / 340 | 215 / 290 / 421 |
| T7N R63W 6th PM | 98% | unnamed | 151 | 120 / 300 / 406 | 120 / 220 / 322 | 226 / 320 / 405 |
| T10S R62W 6th PM | 98% | alluvium | 7 | 56 / 80 / 209 | 20 / 30 / 113 | 46 / 60 / 193 |
| T10S R62W 6th PM | 98% | unnamed | 79 | 61 / 185 / 648 | 24 / 136 / 591 | 64 / 198 / 758 |
| T10S R62W 6th PM | 98% | Denver | 47 | 171 / 440 / 541 | 61 / 238 / 394 | 124 / 426 / 536 |
| T10S R62W 6th PM | 98% | Arapahoe | 31 | 635 / 800 / 1,015 | 486 / 652 / 780 | 647 / 838 / 987 |
| T2S R64W 6th PM | 100% | unnamed | 18 | 115 / 300 / 501 | 112 / 215 / 386 | 145 / 300 / 535 |
| T2S R64W 6th PM | 100% | Denver | 61 | 200 / 320 / 480 | 100 / 200 / 296 | 205 / 320 / 489 |
| T2S R64W 6th PM | 100% | Arapahoe | 84 | 353 / 525 / 678 | 224 / 380 / 555 | 348 / 500 / 665 |
| T2S R62W 6th PM | 100% | alluvium | 28 | 36 / 60 / 79 | 18 / 23 / 44 | 46 / 55 / 62 |
| T2S R62W 6th PM | 100% | unnamed | 44 | 50 / 192 / 452 | 21 / 120 / 251 | 50 / 220 / 390 |
| T2S R62W 6th PM | 100% | Arapahoe | 63 | 200 / 280 / 428 | 100 / 160 / 239 | 200 / 260 / 412 |
| T2S R62W 6th PM | 100% | Laramie-Fox Hills | 23 | 700 / 810 / 930 | 628 / 690 / 800 | 740 / 880 / 938 |
| T1N R55W 6th PM | 100% | unnamed | 149 | 44 / 65 / 80 | 25 / 49 / 63 | 44 / 68 / 79 |
| T1S R63W 6th PM | 100% | alluvium | 25 | 150 / 179 / 189 | 130 / 140 / 150 | 160 / 180 / 187 |
| T1S R63W 6th PM | 100% | unnamed | 42 | 140 / 190 / 930 | 109 / 160 / 806 | 150 / 190 / 941 |
| T1S R63W 6th PM | 100% | Arapahoe | 64 | 186 / 355 / 511 | 80 / 200 / 400 | 220 / 400 / 515 |
| T1S R63W 6th PM | 100% | Laramie-Fox Hills | 19 | 752 / 930 / 986 | 690 / 800 / 851 | 800 / 940 / 995 |
| T7S R63W 6th PM | 100% | alluvium | 7 | 32 / 45 / 110 | — | — |
| T7S R63W 6th PM | 100% | unnamed | 43 | 55 / 160 / 390 | 28 / 176 / 252 | 97 / 290 / 409 |
| T7S R63W 6th PM | 100% | Dawson | 28 | 108 / 261 / 404 | 46 / 180 / 299 | 106 / 272 / 408 |
| T7S R63W 6th PM | 100% | Denver | 70 | 280 / 416 / 521 | 147 / 285 / 405 | 286 / 400 / 514 |
| T2N R59W 6th PM | 100% | unnamed | 90 | 86 / 142 / 157 | 39 / 95 / 126 | 81 / 136 / 157 |
| T2N R59W 6th PM | 100% | alluvium | 57 | 130 / 145 / 158 | 57 / 81 / 109 | 135 / 145 / 160 |
| T2N R56W 6th PM | 100% | alluvium | 10 | 60 / 70 / 74 | 23 / 32 / 47 | 61 / 70 / 74 |
| T2N R56W 6th PM | 100% | unnamed | 132 | 53 / 72 / 92 | 24 / 48 / 64 | 61 / 76 / 97 |
| T8S R62W 6th PM | 100% | unnamed | 58 | 53 / 165 / 496 | 28 / 123 / 338 | 71 / 220 / 428 |
| T8S R62W 6th PM | 100% | Dawson | 8 | 104 / 200 / 342 | 54 / 160 / 314 | 103 / 200 / 364 |
| T8S R62W 6th PM | 100% | Denver | 55 | 220 / 400 / 596 | 85 / 220 / 498 | 239 / 389 / 598 |
| T8S R62W 6th PM | 100% | Arapahoe | 19 | 332 / 640 / 918 | 307 / 512 / 713 | 413 / 648 / 924 |
| T3N R64W 6th PM | 94% | unnamed | 103 | 20 / 64 / 374 | 4 / 32 / 227 | 14 / 56 / 352 |
| T3N R64W 6th PM | 94% | Laramie-Fox Hills | 35 | 245 / 281 / 685 | 144 / 188 / 300 | 253 / 280 / 492 |
| T5N R60W 6th PM | 99% | unnamed | 135 | 30 / 45 / 78 | 9 / 20 / 51 | 36 / 46 / 71 |
| T2N R55W 6th PM | 99% | unnamed | 131 | 48 / 67 / 340 | 30 / 44 / 200 | 52 / 78 / 488 |
| T9S R62W 6th PM | 100% | unnamed | 45 | 57 / 200 / 639 | 19 / 118 / 543 | 60 / 198 / 664 |
| T9S R62W 6th PM | 100% | Denver | 54 | 239 / 440 / 598 | 120 / 320 / 503 | 196 / 440 / 600 |
| T9S R62W 6th PM | 100% | Arapahoe | 30 | 589 / 741 / 954 | 400 / 554 / 671 | 586 / 714 / 954 |
| T3S R64W 6th PM | 100% | unnamed | 51 | 44 / 405 / 960 | 20 / 262 / 553 | 42 / 372 / 772 |
| T3S R64W 6th PM | 100% | Denver | 38 | 300 / 418 / 654 | 180 / 280 / 456 | 324 / 470 / 634 |
| T3S R64W 6th PM | 100% | Arapahoe | 42 | 622 / 915 / 1,264 | 500 / 720 / 760 | 630 / 880 / 997 |
| T1N R59W 6th PM | 100% | unnamed | 63 | 70 / 117 / 134 | 33 / 70 / 101 | 70 / 120 / 131 |
| T1N R59W 6th PM | 100% | alluvium | 56 | 100 / 118 / 138 | 36 / 60 / 90 | 103 / 117 / 134 |
| T5N R55W 6th PM | 93% | unnamed | 121 | 48 / 80 / 115 | 20 / 40 / 124 | 47 / 78 / 189 |
| T7N R62W 6th PM | 100% | unnamed | 121 | 190 / 300 / 390 | 120 / 200 / 298 | 240 / 301 / 388 |
| T5N R63W 6th PM | 100% | unnamed | 112 | 36 / 85 / 245 | 20 / 51 / 94 | 33 / 85 / 119 |
| T5N R63W 6th PM | 100% | alluvium | 7 | 68 / 96 / 108 | — | — |
| T7S R62W 6th PM | 100% | alluvium | 7 | 16 / 62 / 96 | — | — |
| T7S R62W 6th PM | 100% | unnamed | 51 | 47 / 118 / 440 | 20 / 101 / 379 | 60 / 156 / 524 |
| T7S R62W 6th PM | 100% | Denver | 35 | 191 / 322 / 606 | 44 / 201 / 368 | 132 / 290 / 556 |
| T7S R62W 6th PM | 100% | Arapahoe | 28 | 267 / 390 / 816 | 187 / 260 / 652 | 253 / 380 / 822 |
| T2S R60W 6th PM | 100% | unnamed | 80 | 80 / 100 / 164 | 38 / 64 / 156 | 84 / 102 / 195 |
| T2S R60W 6th PM | 100% | alluvium | 28 | 80 / 103 / 120 | 40 / 60 / 70 | 77 / 100 / 120 |
| T2S R60W 6th PM | 100% | Laramie-Fox Hills | 12 | 84 / 279 / 397 | 150 / 165 / 210 | 210 / 280 / 373 |
| T9S R60W 6th PM | 100% | more than one named | 5 | 48 / 65 / 190 | — | — |
| T9S R60W 6th PM | 100% | unnamed | 54 | 60 / 125 / 420 | 21 / 102 / 339 | 66 / 148 / 433 |
| T9S R60W 6th PM | 100% | Arapahoe | 50 | 79 / 280 / 420 | 59 / 161 / 245 | 111 / 275 / 412 |
| T9S R60W 6th PM | 100% | Laramie-Fox Hills | 6 | 430 / 585 / 744 | 328 / 450 / 561 | 420 / 510 / 657 |
| T10N R67W 6th PM | 88% | unnamed | 108 | 49 / 252 / 640 | 26 / 150 / 493 | 50 / 230 / 598 |
| T10N R67W 6th PM | 88% | Laramie-Fox Hills | 6 | 188 / 370 / 575 | 110 / 160 / 386 | 185 / 260 / 522 |
| T2N R57W 6th PM | 100% | unnamed | 113 | 59 / 84 / 108 | 35 / 58 / 83 | 60 / 92 / 110 |
| T7S R59W 6th PM | 100% | alluvium | 7 | 42 / 60 / 130 | 17 / 32 / 88 | 39 / 60 / 118 |
| T7S R59W 6th PM | 100% | unnamed | 40 | 35 / 136 / 418 | 12 / 78 / 225 | 35 / 112 / 391 |
| T7S R59W 6th PM | 100% | Laramie-Fox Hills | 66 | 160 / 240 / 380 | 72 / 155 / 328 | 160 / 240 / 419 |
| T11N R67W 6th PM | 96% | unnamed | 97 | 53 / 125 / 320 | 32 / 80 / 248 | 87 / 125 / 328 |
| T11N R67W 6th PM | 96% | other named | 8 | 312 / 994 / 1,180 | — | — |
| T1S R62W 6th PM | 100% | alluvium | 26 | 68 / 76 / 84 | 38 / 50 / 60 | 72 / 78 / 87 |
| T1S R62W 6th PM | 100% | unnamed | 31 | 54 / 78 / 653 | 45 / 68 / 503 | 72 / 84 / 777 |
| T1S R62W 6th PM | 100% | Arapahoe | 9 | 198 / 220 / 330 | 85 / 130 / 178 | 195 / 215 / 230 |
| T1S R62W 6th PM | 100% | Laramie-Fox Hills | 38 | 555 / 665 / 803 | 440 / 540 / 640 | 555 / 640 / 757 |
| T5S R60W 6th PM | 99% | alluvium | 12 | 29 / 38 / 57 | 17 / 20 / 34 | 30 / 40 / 50 |
| T5S R60W 6th PM | 99% | unnamed | 64 | 30 / 47 / 418 | 16 / 48 / 370 | 40 / 85 / 501 |
| T5S R60W 6th PM | 99% | Arapahoe | 5 | 200 / 300 / 300 | — | — |
| T5S R60W 6th PM | 99% | Laramie-Fox Hills | 24 | 316 / 381 / 494 | 220 / 321 / 420 | 320 / 380 / 460 |
| T10S R61W 6th PM | 77% | unnamed | 46 | 36 / 185 / 418 | 12 / 220 / 386 | 35 / 286 / 487 |
| T10S R61W 6th PM | 77% | Denver | 14 | 188 / 278 / 364 | 69 / 158 / 244 | 121 / 259 / 294 |
| T10S R61W 6th PM | 77% | Dawson | 5 | 173 / 290 / 323 | — | — |
| T10S R61W 6th PM | 77% | Arapahoe | 36 | 338 / 484 / 620 | 260 / 380 / 476 | 371 / 502 / 615 |
| T1N R62W 6th PM | 100% | alluvium | 16 | 36 / 44 / 66 | 11 / 24 / 37 | 29 / 36 / 66 |
| T1N R62W 6th PM | 100% | unnamed | 45 | 40 / 64 / 507 | 11 / 30 / 403 | 35 / 58 / 550 |
| T1N R62W 6th PM | 100% | Laramie-Fox Hills | 37 | 498 / 600 / 660 | 380 / 428 / 546 | 476 / 600 / 663 |
| T6N R62W 6th PM | 100% | unnamed | 74 | 136 / 240 / 319 | 101 / 160 / 220 | 190 / 248 / 320 |
| T6N R62W 6th PM | 100% | Laramie-Fox Hills | 25 | 260 / 305 / 348 | 100 / 130 / 160 | 260 / 315 / 350 |
| T3N R54W 6th PM | 99% | unnamed | 67 | 44 / 76 / 300 | 19 / 40 / 164 | 55 / 72 / 308 |
| T3N R54W 6th PM | 99% | Ogallala / High Plains | 6 | 60 / 88 / 280 | 36 / 40 / 65 | 60 / 88 / 280 |
| T3N R54W 6th PM | 99% | alluvium | 22 | 67 / 97 / 124 | 26 / 40 / 72 | 73 / 98 / 125 |
| T4S R60W 6th PM | 100% | alluvium | 15 | 23 / 59 / 100 | 9 / 20 / 81 | 21 / 53 / 104 |
| T4S R60W 6th PM | 100% | unnamed | 44 | 35 / 104 / 529 | 19 / 100 / 400 | 42 / 112 / 504 |
| T4S R60W 6th PM | 100% | Arapahoe | 6 | 245 / 270 / 438 | — | — |
| T4S R60W 6th PM | 100% | Laramie-Fox Hills | 32 | 361 / 560 / 659 | 264 / 408 / 517 | 360 / 560 / 660 |
| T9S R61W 6th PM | 99% | unnamed | 31 | 35 / 150 / 462 | 21 / 286 / 505 | 60 / 372 / 604 |
| T9S R61W 6th PM | 99% | Denver | 34 | 266 / 423 / 518 | 112 / 271 / 380 | 296 / 423 / 532 |
| T9S R61W 6th PM | 99% | Arapahoe | 26 | 288 / 722 / 948 | 361 / 542 / 661 | 538 / 795 / 921 |
| T5S R59W 6th PM | 100% | alluvium | 20 | 38 / 46 / 60 | 19 / 20 / 44 | 41 / 60 / 60 |
| T5S R59W 6th PM | 100% | unnamed | 38 | 49 / 270 / 372 | 21 / 200 / 300 | 45 / 300 / 358 |
| T5S R59W 6th PM | 100% | Laramie-Fox Hills | 37 | 267 / 360 / 441 | 155 / 250 / 340 | 255 / 341 / 470 |
| T8S R61W 6th PM | 100% | unnamed | 22 | 57 / 126 / 561 | 71 / 100 / 497 | 100 / 147 / 598 |
| T8S R61W 6th PM | 100% | Denver | 25 | 216 / 265 / 403 | 96 / 160 / 263 | 196 / 288 / 436 |
| T8S R61W 6th PM | 100% | Arapahoe | 46 | 300 / 578 / 710 | 236 / 400 / 558 | 316 / 577 / 687 |
| T8N R64W 6th PM | 98% | unnamed | 74 | 102 / 380 / 520 | 164 / 280 / 440 | 264 / 370 / 520 |
| T8N R64W 6th PM | 98% | Laramie-Fox Hills | 16 | 296 / 422 / 510 | 190 / 315 / 410 | 296 / 422 / 510 |
| T2S R61W 6th PM | 100% | unnamed | 38 | 79 / 100 / 358 | 40 / 66 / 330 | 79 / 102 / 404 |
| T2S R61W 6th PM | 100% | alluvium | 43 | 80 / 100 / 110 | 28 / 48 / 91 | 84 / 102 / 108 |
| T2S R61W 6th PM | 100% | Laramie-Fox Hills | 8 | 391 / 430 / 586 | 298 / 375 / 404 | 409 / 440 / 588 |
| T3S R65W 6th PM | 57% | unnamed | 47 | 41 / 60 / 813 | 26 / 30 / 181 | 46 / 56 / 265 |
| T3S R65W 6th PM | 57% | Denver | 25 | 151 / 536 / 662 | 100 / 400 / 464 | 116 / 536 / 642 |
| T3S R65W 6th PM | 57% | Arapahoe | 16 | 880 / 910 / 1,206 | 460 / 780 / 780 | 880 / 900 / 1,000 |
| T5N R56W 6th PM | 99% | unnamed | 88 | 40 / 60 / 375 | 20 / 35 / 230 | 41 / 60 / 368 |
| T4N R63W 6th PM | 99% | unnamed | 68 | 47 / 72 / 106 | 30 / 44 / 91 | 45 / 74 / 115 |
| T4N R63W 6th PM | 99% | Laramie-Fox Hills | 10 | 104 / 208 / 302 | 70 / 142 / 160 | 148 / 218 / 235 |
| T3N R62W 6th PM | 99% | unnamed | 42 | 88 / 100 / 117 | 40 / 73 / 84 | 87 / 100 / 111 |
| T3N R62W 6th PM | 99% | alluvium | 40 | 87 / 106 / 125 | 50 / 60 / 66 | 95 / 106 / 125 |
| T6S R61W 6th PM | 100% | unnamed | 36 | 72 / 230 / 761 | 31 / 146 / 273 | 53 / 261 / 387 |
| T6S R61W 6th PM | 100% | Denver | 5 | 185 / 262 / 735 | — | — |
| T6S R61W 6th PM | 100% | Arapahoe | 35 | 240 / 301 / 662 | 140 / 215 / 485 | 260 / 320 / 678 |
| T2N R54W 6th PM | 99% | unnamed | 65 | 40 / 60 / 91 | 17 / 27 / 50 | 38 / 62 / 115 |
| T2N R54W 6th PM | 99% | alluvium | 13 | 42 / 81 / 89 | — | — |
| T6S R60W 6th PM | 100% | alluvium | 5 | 33 / 44 / 180 | — | — |
| T6S R60W 6th PM | 100% | unnamed | 26 | 36 / 192 / 534 | 19 / 120 / 511 | 56 / 220 / 594 |
| T6S R60W 6th PM | 100% | Arapahoe | 38 | 154 / 284 / 386 | 85 / 180 / 280 | 144 / 282 / 379 |
| T6S R60W 6th PM | 100% | Laramie-Fox Hills | 7 | 440 / 625 / 658 | 232 / 505 / 536 | 380 / 625 / 647 |
| T2N R53W 6th PM | 53% | Ogallala / High Plains | 13 | 52 / 80 / 260 | 20 / 40 / 125 | 48 / 80 / 273 |
| T2N R53W 6th PM | 53% | unnamed | 64 | 43 / 94 / 225 | 23 / 74 / 145 | 77 / 115 / 350 |
| T12N R62W 6th PM | 98% | alluvium | 11 | 44 / 60 / 100 | 16 / 30 / 71 | 42 / 60 / 106 |
| T12N R62W 6th PM | 98% | unnamed | 57 | 56 / 115 / 150 | 30 / 47 / 94 | 75 / 128 / 154 |
| T5S R64W 6th PM | 84% | alluvium | 5 | 20 / 20 / 25 | — | — |
| T5S R64W 6th PM | 84% | unnamed | 23 | 155 / 340 / 1,184 | 38 / 220 / 553 | 100 / 420 / 696 |
| T5S R64W 6th PM | 84% | Denver | 43 | 284 / 415 / 712 | 102 / 214 / 524 | 236 / 360 / 714 |
| T5S R64W 6th PM | 84% | Arapahoe | 5 | 762 / 1,662 / 1,683 | — | — |
| T2N R61W 6th PM | 100% | alluvium | 13 | 70 / 85 / 153 | 43 / 55 / 75 | 72 / 85 / 117 |
| T2N R61W 6th PM | 100% | unnamed | 51 | 65 / 91 / 210 | 41 / 68 / 140 | 80 / 100 / 245 |
| T2N R61W 6th PM | 100% | Laramie-Fox Hills | 11 | 220 / 300 / 455 | 128 / 145 / 214 | 174 / 260 / 363 |
| T11N R62W 6th PM | 98% | alluvium | 33 | 30 / 40 / 59 | 12 / 20 / 37 | 35 / 50 / 59 |
| T11N R62W 6th PM | 98% | unnamed | 36 | 33 / 69 / 178 | 14 / 21 / 181 | 29 / 60 / 214 |
| T11N R62W 6th PM | 98% | other named | 6 | 72 / 175 / 470 | — | — |
| T1N R61W 6th PM | 100% | alluvium | 12 | 58 / 80 / 100 | 37 / 62 / 72 | 54 / 82 / 100 |
| T1N R61W 6th PM | 100% | unnamed | 40 | 58 / 82 / 396 | 31 / 60 / 353 | 60 / 87 / 420 |
| T1N R61W 6th PM | 100% | Laramie-Fox Hills | 21 | 285 / 337 / 420 | 194 / 240 / 288 | 287 / 348 / 456 |
| T5N R57W 6th PM | 100% | unnamed | 71 | 55 / 70 / 125 | 28 / 40 / 240 | 60 / 74 / 359 |
| T9N R64W 6th PM | 100% | unnamed | 70 | 138 / 240 / 400 | 74 / 160 / 283 | 181 / 250 / 380 |
| T8N R61W 6th PM | 100% | unnamed | 44 | 165 / 312 / 400 | 160 / 245 / 300 | 260 / 340 / 400 |
| T8N R61W 6th PM | 100% | Laramie-Fox Hills | 24 | 300 / 420 / 535 | 210 / 305 / 360 | 280 / 350 / 500 |
| T2N R58W 6th PM | 100% | unnamed | 63 | 55 / 72 / 100 | 28 / 39 / 63 | 52 / 70 / 113 |
| T3N R55W 6th PM | 100% | unnamed | 62 | 56 / 80 / 400 | 32 / 57 / 312 | 62 / 109 / 400 |
| T3N R55W 6th PM | 100% | other named | 5 | 6,430 / 6,430 / 6,508 (off the drawn scale) | — | — |
| T1N R56W 6th PM | 100% | unnamed | 65 | 61 / 76 / 94 | 24 / 50 / 60 | 68 / 80 / 103 |
| T3S R55W 6th PM | 99% | unnamed | 62 | 32 / 40 / 60 | 15 / 22 / 28 | 33 / 42 / 56 |
| T8N R62W 6th PM | 99% | unnamed | 58 | 25 / 300 / 425 | 17 / 200 / 312 | 29 / 304 / 421 |
| T8N R62W 6th PM | 99% | Laramie-Fox Hills | 7 | 341 / 420 / 445 | 278 / 305 / 340 | 335 / 410 / 445 |
| T10N R61W 6th PM | 81% | alluvium | 8 | 32 / 40 / 100 | — | — |
| T10N R61W 6th PM | 81% | unnamed | 25 | 52 / 180 / 338 | 57 / 172 / 260 | 105 / 248 / 361 |
| T10N R61W 6th PM | 81% | other named | 23 | 101 / 180 / 423 | 40 / 80 / 162 | 136 / 229 / 400 |
| T10N R61W 6th PM | 81% | Laramie-Fox Hills | 8 | 735 / 766 / 865 | 357 / 425 / 488 | 498 / 739 / 805 |
| T9N R65W 6th PM | 98% | unnamed | 62 | 124 / 385 / 640 | 152 / 280 / 600 | 256 / 400 / 640 |
| T6S R59W 6th PM | 100% | unnamed | 43 | 32 / 120 / 296 | 15 / 100 / 287 | 34 / 175 / 450 |
| T6S R59W 6th PM | 100% | Laramie-Fox Hills | 14 | 247 / 302 / 508 | 163 / 230 / 398 | 243 / 300 / 514 |
| T6S R62W 6th PM | 100% | alluvium | 10 | 29 / 60 / 91 | 29 / 40 / 52 | 52 / 80 / 97 |
| T6S R62W 6th PM | 100% | unnamed | 34 | 40 / 82 / 299 | 14 / 20 / 155 | 40 / 50 / 242 |
| T6S R62W 6th PM | 100% | Denver | 10 | 154 / 370 / 608 | 76 / 250 / 460 | 156 / 360 / 557 |
| T6S R62W 6th PM | 100% | Arapahoe | 7 | 340 / 595 / 739 | 250 / 358 / 634 | 340 / 478 / 744 |
| T10N R66W 6th PM | 100% | unnamed | 55 | 39 / 240 / 417 | 60 / 156 / 295 | 136 / 260 / 390 |
| T9S R59W 6th PM | 74% | unnamed | 24 | 32 / 212 / 341 | 18 / 220 / 300 | 41 / 275 / 381 |
| T9S R59W 6th PM | 74% | Laramie-Fox Hills | 33 | 335 / 395 / 436 | 255 / 315 / 345 | 335 / 395 / 421 |
| T7S R60W 6th PM | 100% | alluvium | 6 | 30 / 44 / 68 | — | — |
| T7S R60W 6th PM | 100% | unnamed | 28 | 38 / 190 / 461 | 55 / 115 / 265 | 129 / 216 / 454 |
| T7S R60W 6th PM | 100% | Arapahoe | 24 | 102 / 210 / 386 | 24 / 130 / 219 | 84 / 200 / 323 |
| T1S R55W 6th PM | 100% | unnamed | 58 | 34 / 55 / 80 | 20 / 34 / 56 | 38 / 58 / 82 |
| T1S R59W 6th PM | 100% | unnamed | 40 | 40 / 53 / 103 | 20 / 29 / 61 | 40 / 53 / 82 |
| T1S R59W 6th PM | 100% | alluvium | 14 | 45 / 66 / 123 | 20 / 26 / 88 | 40 / 73 / 122 |
| T4S R55W 6th PM | 100% | unnamed | 54 | 36 / 60 / 90 | 30 / 44 / 59 | 56 / 70 / 96 |
| T3N R61W 6th PM | 100% | alluvium | 21 | 92 / 100 / 133 | 42 / 71 / 99 | 90 / 110 / 145 |
| T3N R61W 6th PM | 100% | unnamed | 34 | 76 / 104 / 144 | 44 / 74 / 101 | 82 / 108 / 143 |
| T9N R62W 6th PM | 99% | unnamed | 39 | 55 / 185 / 512 | 85 / 206 / 447 | 157 / 276 / 544 |
| T9N R62W 6th PM | 99% | Laramie-Fox Hills | 13 | 500 / 612 / 678 | 316 / 405 / 431 | 490 / 500 / 540 |
| T5N R59W 6th PM | 100% | unnamed | 52 | 29 / 42 / 56 | 15 / 20 / 30 | 30 / 41 / 58 |
| T6N R57W 6th PM | 98% | unnamed | 48 | 31 / 72 / 378 | 21 / 35 / 484 | 47 / 74 / 614 |
| T10N R62W 6th PM | 100% | alluvium | 9 | 21 / 31 / 42 | 4 / 18 / 22 | 21 / 31 / 43 |
| T10N R62W 6th PM | 100% | other named | 7 | 25 / 100 / 162 | — | — |
| T10N R62W 6th PM | 100% | unnamed | 30 | 30 / 112 / 251 | 19 / 80 / 182 | 30 / 100 / 250 |
| T10N R62W 6th PM | 100% | Laramie-Fox Hills | 5 | 228 / 229 / 231 | — | — |
| T1N R54W 6th PM | 100% | unnamed | 49 | 40 / 60 / 181 | 15 / 25 / 80 | 40 / 62 / 190 |
| T4S R59W 6th PM | 100% | unnamed | 27 | 70 / 138 / 392 | 47 / 100 / 142 | 81 / 168 / 221 |
| T4S R59W 6th PM | 100% | Laramie-Fox Hills | 23 | 176 / 280 / 410 | 130 / 180 / 320 | 220 / 280 / 410 |
| T5S R58W 6th PM | 100% | alluvium | 7 | 40 / 60 / 105 | 20 / 20 / 44 | 40 / 60 / 105 |
| T5S R58W 6th PM | 100% | unnamed | 30 | 39 / 64 / 143 | 5 / 50 / 88 | 34 / 71 / 167 |
| T5S R58W 6th PM | 100% | Laramie-Fox Hills | 10 | 96 / 260 / 342 | 46 / 59 / 138 | 98 / 280 / 346 |
| T3S R56W 6th PM | 100% | unnamed | 47 | 30 / 40 / 58 | 16 / 26 / 35 | 35 / 45 / 56 |
| T2S R55W 6th PM | 100% | unnamed | 44 | 36 / 48 / 100 | 16 / 20 / 38 | 35 / 40 / 69 |
| T6N R61W 6th PM | 100% | unnamed | 44 | 131 / 200 / 257 | 60 / 115 / 140 | 175 / 200 / 250 |
| T4S R56W 6th PM | 98% | unnamed | 44 | 30 / 40 / 69 | 13 / 20 / 53 | 30 / 40 / 77 |
| T7N R60W 6th PM | 100% | unnamed | 37 | 142 / 320 / 889 | 87 / 235 / 881 | 146 / 350 / 1,293 |
| T8N R60W 6th PM | 86% | unnamed | 41 | 100 / 170 / 366 | 34 / 103 / 257 | 62 / 155 / 387 |
| T8S R60W 6th PM | 100% | unnamed | 30 | 40 / 170 / 344 | 82 / 158 / 241 | 125 / 240 / 334 |
| T8S R60W 6th PM | 100% | Arapahoe | 5 | 144 / 255 / 408 | — | — |
| T6N R56W 6th PM | 62% | unnamed | 42 | 45 / 61 / 560 | 20 / 40 / 375 | 42 / 64 / 560 |
| T2S R54W 6th PM | 100% | unnamed | 42 | 33 / 52 / 80 | 20 / 21 / 43 | 47 / 57 / 77 |
| T3S R60W 6th PM | 100% | alluvium | 6 | 76 / 88 / 100 | 45 / 60 / 76 | 72 / 95 / 99 |
| T3S R60W 6th PM | 100% | unnamed | 26 | 61 / 98 / 446 | 36 / 60 / 182 | 61 / 80 / 411 |
| T3S R60W 6th PM | 100% | Laramie-Fox Hills | 10 | 318 / 482 / 540 | 189 / 340 / 381 | 332 / 485 / 541 |
| T1S R56W 6th PM | 98% | unnamed | 38 | 47 / 88 / 123 | 20 / 65 / 80 | 64 / 95 / 129 |
| T2S R56W 6th PM | 100% | unnamed | 39 | 31 / 47 / 91 | 19 / 20 / 48 | 40 / 47 / 62 |
| T4N R54W 6th PM | 79% | unnamed | 40 | 50 / 78 / 175 | 36 / 60 / 298 | 66 / 80 / 420 |
| T4N R62W 6th PM | 97% | unnamed | 33 | 31 / 91 / 147 | 10 / 40 / 105 | 36 / 91 / 136 |
| T4N R62W 6th PM | 97% | alluvium | 7 | 81 / 95 / 135 | 49 / 77 / 99 | 79 / 90 / 135 |
| T6N R58W 6th PM | 100% | unnamed | 38 | 34 / 142 / 512 | 19 / 80 / 556 | 40 / 165 / 752 |
| T3S R54W 6th PM | 98% | unnamed | 37 | 24 / 50 / 84 | 18 / 32 / 64 | 26 / 59 / 85 |
| T6N R59W 6th PM | 100% | unnamed | 36 | 20 / 88 / 800 | 20 / 180 / 636 | 46 / 725 / 824 |
| T8S R59W 6th PM | 100% | unnamed | 32 | 40 / 255 / 514 | 30 / 208 / 417 | 50 / 275 / 504 |
| T5S R55W 6th PM | 91% | unnamed | 35 | 40 / 78 / 130 | 23 / 60 / 90 | 50 / 78 / 145 |
| T11N R61W 6th PM | 96% | unnamed | 19 | 48 / 150 / 449 | 20 / 48 / 176 | 76 / 145 / 380 |
| T11N R61W 6th PM | 96% | other named | 10 | 118 / 172 / 242 | 15 / 38 / 192 | 65 / 120 / 264 |
| T11N R63W 6th PM | 98% | unnamed | 34 | 35 / 154 / 172 | 60 / 80 / 193 | 155 / 162 / 246 |
| T7N R61W 6th PM | 96% | unnamed | 29 | 186 / 305 / 522 | 172 / 260 / 412 | 260 / 360 / 513 |
| T7S R58W 6th PM | 100% | unnamed | 21 | 45 / 100 / 270 | 20 / 98 / 212 | 49 / 125 / 270 |
| T7S R58W 6th PM | 100% | Laramie-Fox Hills | 11 | 200 / 300 / 395 | 20 / 91 / 218 | 80 / 191 / 292 |
| T7N R59W 6th PM | 88% | unnamed | 32 | 49 / 178 / 290 | 50 / 100 / 172 | 67 / 180 / 304 |
| T1N R58W 6th PM | 100% | unnamed | 32 | 40 / 54 / 71 | 19 / 22 / 28 | 42 / 49 / 69 |
| T6N R60W 6th PM | 100% | unnamed | 30 | 54 / 224 / 1,304 | 28 / 142 / 932 | 60 / 284 / 1,301 |
| T1N R57W 6th PM | 100% | unnamed | 31 | 41 / 63 / 95 | 20 / 42 / 54 | 40 / 65 / 87 |
| T9N R61W 6th PM | 100% | unnamed | 20 | 58 / 130 / 216 | 40 / 100 / 180 | 62 / 150 / 215 |
| T9N R61W 6th PM | 100% | Laramie-Fox Hills | 7 | 446 / 530 / 649 | 230 / 305 / 426 | 442 / 510 / 614 |
| T8S R58W 6th PM | 58% | unnamed | 17 | 56 / 125 / 180 | 18 / 80 / 145 | 48 / 125 / 173 |
| T8S R58W 6th PM | 58% | Laramie-Fox Hills | 6 | 150 / 200 / 230 | 103 / 108 / 140 | 155 / 195 / 230 |
| T5N R58W 6th PM | 100% | unnamed | 28 | 36 / 58 / 141 | 12 / 32 / 40 | 42 / 52 / 60 |
| T10N R65W 6th PM | 100% | unnamed | 26 | 18 / 102 / 266 | 41 / 85 / 204 | 58 / 105 / 284 |
| T11N R66W 6th PM | 90% | unnamed | 24 | 144 / 258 / 722 | 108 / 190 / 300 | 155 / 260 / 420 |
| T8N R63W 6th PM | 100% | unnamed | 22 | 28 / 210 / 438 | 40 / 220 / 318 | 80 / 380 / 500 |
| T10N R64W 6th PM | 100% | unnamed | 26 | 98 / 268 / 352 | 94 / 178 / 226 | 190 / 300 / 350 |
| T12N R61W 6th PM | 100% | unnamed | 14 | 64 / 121 / 180 | 38 / 45 / 99 | 90 / 122 / 221 |
| T12N R61W 6th PM | 100% | other named | 11 | 80 / 180 / 360 | 7 / 36 / 58 | 112 / 180 / 366 |
| T3N R63W 6th PM | 100% | unnamed | 16 | 17 / 65 / 289 | 9 / 20 / 171 | 16 / 54 / 227 |
| T3N R63W 6th PM | 100% | Laramie-Fox Hills | 10 | 236 / 488 / 591 | 142 / 180 / 260 | 217 / 445 / 538 |
| T3S R58W 6th PM | 100% | unnamed | 22 | 30 / 40 / 55 | 20 / 21 / 36 | 40 / 40 / 55 |
| T3S R59W 6th PM | 100% | unnamed | 16 | 75 / 128 / 243 | 59 / 108 / 159 | 76 / 130 / 224 |
| T3S R59W 6th PM | 100% | Laramie-Fox Hills | 6 | 171 / 240 / 260 | — | — |
| T4S R54W 6th PM | 100% | unnamed | 24 | 26 / 50 / 80 | 15 / 34 / 55 | 33 / 45 / 80 |
| T11N R65W 6th PM | 100% | unnamed | 23 | 148 / 220 / 372 | 60 / 180 / 360 | 165 / 280 / 400 |
| T2S R58W 6th PM | 98% | unnamed | 16 | 28 / 37 / 49 | 11 / 14 / 20 | 30 / 34 / 41 |
| T2S R58W 6th PM | 98% | alluvium | 5 | 33 / 39 / 44 | — | — |
| T2S R59W 6th PM | 100% | unnamed | 16 | 42 / 60 / 120 | 26 / 40 / 50 | 45 / 56 / 122 |
| T1S R58W 6th PM | 100% | unnamed | 19 | 31 / 50 / 82 | 20 / 21 / 30 | 37 / 45 / 57 |
| T3S R57W 6th PM | 100% | unnamed | 21 | 20 / 32 / 61 | 11 / 20 / 21 | 32 / 40 / 61 |
| T11N R64W 6th PM | 100% | unnamed | 18 | 100 / 180 / 252 | — | — |
| T1S R54W 6th PM | 97% | unnamed | 19 | 36 / 46 / 60 | 20 / 24 / 50 | 39 / 56 / 76 |
| T1S R57W 6th PM | 100% | unnamed | 19 | 38 / 50 / 98 | 17 / 20 / 33 | 45 / 51 / 99 |
| T4S R53W 6th PM | 67% | unnamed | 14 | 32 / 49 / 105 | 22 / 32 / 55 | 40 / 49 / 85 |
| T2S R57W 6th PM | 100% | unnamed | 16 | 30 / 44 / 100 | 13 / 18 / 20 | 34 / 49 / 56 |
| T5N R62W 6th PM | 100% | unnamed | 17 | 46 / 150 / 205 | — | — |
| T6S R58W 6th PM | 100% | unnamed | 12 | 40 / 70 / 224 | 20 / 56 / 150 | 42 / 76 / 182 |
| T6S R56W 6th PM | 96% | unnamed | 15 | 40 / 65 / 144 | 20 / 58 / 128 | 48 / 100 / 148 |
| T12N R67W 6th PM | 100% | unnamed | 12 | 205 / 321 / 748 | — | — |
| T4S R57W 6th PM | 100% | unnamed | 14 | 33 / 40 / 74 | 10 / 32 / 60 | 31 / 49 / 80 |
| T9N R63W 6th PM | 100% | unnamed | 15 | 72 / 235 / 394 | — | — |
| T10N R63W 6th PM | 95% | unnamed | 12 | 131 / 215 / 342 | — | — |
| T4S R58W 6th PM | 100% | unnamed | 5 | 44 / 60 / 400 | — | — |
| T4S R58W 6th PM | 100% | Laramie-Fox Hills | 5 | 136 / 340 / 382 | — | — |
| T5N R61W 6th PM | 100% | unnamed | 14 | 38 / 670 / 859 | 26 / 480 / 636 | 52 / 670 / 740 |
| T5S R56W 6th PM | 100% | unnamed | 13 | 33 / 65 / 109 | 18 / 38 / 55 | 30 / 50 / 72 |
| T3S R53W 6th PM | 55% | unnamed | 10 | 57 / 108 / 157 | — | — |
| T7S R57W 6th PM | 100% | unnamed | 11 | 50 / 60 / 119 | 16 / 20 / 42 | 49 / 70 / 121 |
| T12N R65W 6th PM | 100% | unnamed | 10 | 134 / 210 / 358 | 104 / 110 / 216 | 144 / 150 / 274 |
| T12N R63W 6th PM | 100% | unnamed | 8 | 127 / 216 / 426 | — | — |
| T1S R61W 6th PM | 100% | unnamed | 5 | 41 / 58 / 416 | — | — |
| T6S R57W 6th PM | 100% | unnamed | 10 | 39 / 46 / 70 | 11 / 20 / 68 | 38 / 46 / 89 |
| T12N R64W 6th PM | 91% | unnamed | 8 | 34 / 125 / 290 | — | — |
| T12N R66W 6th PM | 100% | unnamed | 9 | 149 / 250 / 433 | — | — |
These columns on the map · Plate 6 of the Driller’s Atlas.
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.
The ground each well hangs from is a 1-km elevation model sampled at the point the permit was spotted, so the profile is real topography smoothed to about a kilometre — peaks are shaved, valleys filled a little — and the depths are the driller’s, measured down from that ground.
Hover or arrow through the strokes to read a well.
The same corridor as a table
| Miles from A | Wells drawn | Median depth (ft) | With a screen | Most-named aquifer | No depth filed | Ground, ft above sea level (median) |
|---|
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.
Reservoirs
Source DWR administrative record · verify at DWR structure records ↗
38 reservoir(s) with 68,625 storage measurement(s), 1950–2026. Basin storage as of 2025-10-31 (the record's own end — reservoir records publish ~annually): 35,243 AF across 13 reservoir(s).
Why storage matters to the flow network
Storage change is real water the mass balance must credit — a losing reach beside a filling reservoir isn't losing water, it's banking it.
Reservoir map — how full is each vessel?
What “full” is measured against
Bubble size is proportional to a reservoir's record-high storage. Fill is its last recorded storage as a share of its surveyed capacity (USACE National Inventory of Dams) where a confident NID match exists — the tooltip names the matched dam — and as a share of its own record high otherwise. A wrong capacity would be worse than an honest record high, so only confident joins upgrade.
A dashed teal ring marks reservoirs reporting live DWR telemetry: their fill reflects yesterday's storage, is drawn as a dotted tail on charts, and is treated as provisional until the next verified HydroBase snapshot supersedes it.
A dashed red ring marks a dam under an active storage restriction from DWR's Dam Safety branch — the State Engineer has limited how much it may legally store, so a low fill can be an order, not a drought. Hazard class and inspection condition come from the same record, joined only where the dam carries this reservoir's WDID or a confident NID match — a wrong dam's restriction would be worse than none shown.
Basin storage, end of each water year
End-of-water-year totals; per-year reservoir counts shown because reporting coverage varies -- a total is only comparable to years with similar counts.
Largest reservoirs on record
Click a row to chart its full storage history, or open its dossier for rights, documents and dam-safety facts.
| Reservoir | Last recorded storage (AF) | As of | Full | Dam (DWR Dam Safety) | |
|---|---|---|---|---|---|
| ▸ EMPIRE RES (0103816) | 11,118 | 2025-10-31 | — | — | dossier → |
| ▸ MACARTHY RES (0103572) | 8,674 | 1990-10-31 | — | — | dossier → |
| ▸ JACKSON LAKE RES (0103817) | 6,139 | 2025-10-31 | — | — | dossier → |
| ▸ 70 RANCH STORAGE RESERVOIR (0103028) | 4,943 | 2025-10-31 | — | — | dossier → |
| ▸ DUPE WDID, SEE 6403552 (0103552) | 4,230 | 2006-10-31 | — | — | dossier → |
| ▸ OLDS RESERVOIR (0103845) | 2,792 | 1994-04-13 | — | — | dossier → |
| ▸ VANCIL RES (0103400) | 2,466 | 2025-10-31 | — | — | dossier → |
| ▸ RIVERSIDE RES (0103651) | 2,417 | 2025-10-31 | — | — | dossier → |
Drought
Source Our computation, no independent reference · computed here from the screened DWR record Source Independent agency measurement · fetched 2026-10-06 · verify at U.S. Drought Monitor ↗
Right now
This is the 20th-driest week 39 in 124 years of record at SOUTH PLATTE RIVER NEAR KERSEY, CO (as of 2026-09-21; this week’s flow sits at the 16th percentileRank against the record: a river at its 5th percentile is lower than it was in 95 of the past 100 years on this same date. for the date). On this week’s US Drought Monitor, El Paso County is 11% in D4 exceptional drought (2026-10-06).
Every year since 1901, week by week
Each thin row is a year at SOUTH PLATTE RIVER NEAR KERSEY, CO; each cell is one week’s flow ranked against the same calendar week of every other year — warm means dry for the date, blue wet, so seasonality cancels and droughts appear as warm bands. Gaps are missing record, never a dry river. Click a year to reconstruct it on the Historical tab.
This year against its analogs
Over the 39 weeks recorded so far, 2026’s weekly trace most resembles 1908 (mean gap 11.8 percentile points; next closest 1950 (12.2), 1932 (13.2)). The analog’s remainder is drawn as context — its ending is what happened to it, not a forecast for this year.
The Drought Monitor’s view since 2000
Mean share of area in each class across Adams, El Paso, Elbert, Morgan, Washington, Weld counties — the counties this district’s gages sit in, which overlap the district imperfectly. The Drought Monitor weighs soils, vegetation and local reports; it is CONTEXT beside the river’s own record above, not the water-rights picture.
This basin’s droughts, by its own record
| Drought | Span | Weeks | Trough percentile | Flows recovered | Water table back |
|---|---|---|---|---|---|
| the 2002 drought | 2002-07-22 → 2003-05-19 | 43 | 11th (2002-09-23) | 5 weeks | not yet (120 of 204 wells still below) |
| unnamed dry spell | 1969-03-03 → 1969-07-21 | 20 | 20th (1969-04-28) | 6 weeks | 2 yr (591 wells, 108 still below) |
| unnamed dry spell | 1966-06-20 → 1967-08-14 | 60 | 16th (1966-08-22) | 13 weeks | 2 yr (284 wells, 74 still below) |
| the 1963-64 drought | 1963-05-06 → 1965-08-16 | 119 | 15th (1964-12-21) | 1 week | 13 yr (280 wells, 110 still below) |
| unnamed dry spell | 1960-12-05 → 1961-05-01 | 21 | 28th (1961-01-09) | 6 weeks | 2 yr (122 wells, 33 still below) |
| the 1950s drought | 1953-10-12 → 1957-07-29 | 198 | 2nd (1955-02-14) | 0 weeks | 31 yr (65 wells, 26 still below) |
| the 1950s drought | 1952-12-15 → 1953-09-28 | 41 | 22nd (1953-03-09) | 198 weeks | 57 yr (65 wells, 32 still below) |
| the 1950s drought | 1950-01-02 → 1951-09-24 | 90 | 11th (1951-01-08) | 10 weeks | not yet (37 of 68 wells still below) |
| unnamed dry spell | 1948-11-01 → 1949-06-13 | 32 | 15th (1948-12-20) | 2 weeks | 27 yr (62 wells, 28 still below) |
| unnamed dry spell | 1946-06-03 → 1947-02-03 | 35 | 21st (1946-08-19) | 19 weeks | 1 yr (48 wells, 9 still below) |
| unnamed dry spell | 1944-11-13 → 1945-08-20 | 40 | 17th (1945-03-12) | 4 weeks | 2 yr (46 wells, 10 still below) |
| unnamed dry spell | 1943-11-15 → 1944-07-10 | 34 | 13th (1944-03-06) | 62 weeks | 1 yr (45 wells, 7 still below) |
| the 1930s Dust Bowl drought | 1939-09-18 → 1941-08-25 | 101 | 5th (1939-12-11) | 33 weeks | 2 yr (24 wells, 2 still below) |
| the 1930s Dust Bowl drought | 1937-05-24 → 1938-07-18 | 60 | 11th (1938-01-03) | 8 weeks | 4 yr (21 wells, 3 still below) |
Detected mechanically: the 26-week smoothed percentile below the 30th for at least 20 weeks; recovered on regaining the 50th. The water-table clock compares each monitoring well against its own pre-drought median (the 3 years before onset) and dates the year the median well got back — the aquifer remembers longest, and “still below” is a finding, not a gap. The knobs are stated because the episode list depends on them — a different reasonable choice merges or splits episodes at the edges. Names are attached where an episode overlaps a drought Colorado already talks about.
What drought has cost here
Since 1991, federal crop insurance has paid $332,268,749 in drought-caused claims across Adams, El Paso, Elbert, Morgan, Washington, Weld counties — 38.3% of all insured crop losses there. The worst year was 2022 ($81,587,616).
USDA crop-insurance indemnities where the recorded cause of loss is drought, summed over the counties this district's gages sit in. Counties overlap water districts imperfectly, and insured-crop claims are a floor on drought damage, not a total. Source: USDA RMA cause-of-loss files.
When this basin claimed its water
Every bar is a year’s new appropriations (8,493 rights across 124 years of shared record), colored by that year’s wetness from the barcode above. Here the correlation is -0.1 — essentially no wet-dry pattern; here, law and settlement set the pace, not the weather. Across the state both behaviors exist: ephemeral southwest basins file after wet demonstrations, transbasin-source basins under drought — and the biggest statewide filing waves sat in the 1950s drought and after 2002, not in the wet 1980s–90s.
Appropriation dates are the CLAIMED initiation of a right, not the courthouse filing date; the record is survivor-biased (abandoned claims are absent, so failed dry-era scrambles are undercounted); and the big 1960s and 2000s spikes sit on legal events — the pre-1969-Act adjudication era and 2000s legislation — not on weather. A correlation here is a description, never a cause.
New to how a dry winter becomes a call on the river? Anatomy of a drought walks the chain in four minutes — snow to rivers to reservoirs to calls to the water table.
Legal
Who serves it, who protects it
Two registers the site fetches on their own schedules, read for this district. Neither is a DWR record; each links its own page and its agency.
Public water systems here
Source Register of another agency · fetched 2026-10-06 · verify at EPA SDWIS ↗
38 systems touch this district (38 community systems reporting 1,982,790 people served, a figure that counts a wholesaler's customers twice); none carries an open health-based violation on EPA's record.
| System | Serves | Source | Here |
|---|---|---|---|
| DENVER WATER BOARD | 1,287,000 | Surface water | 11% of its area |
| AURORA CITY OF | 533,407 | Surface water | 0% of its area |
| SOUTH ADAMS COUNTY WSD | 75,559 | Purchased surface water | 12% of its area |
| NORTH WELD COUNTY WD | 15,890 | Purchased surface water | 44% of its area |
| FT MORGAN CITY OF | 12,000 | Surface water | 100% of its area |
| MORGAN COUNTY QUALITY WD | 8,116 | Purchased surface water | 100% of its area |
| CENTRAL WELD CNTY WD | 7,662 | Purchased surface water | 26% of its area |
| BRUSH CITY OF | 5,122 | Groundwater | 100% of its area |
and 30 more; the full directory filters by district.
Instream-flow rights held by the state
Source Register of another agency · fetched 2026-10-11 · verify at CWCB instream flow program ↗
2 reaches over 4.9 miles, held by the Colorado Water Conservation Board so that water stays in the stream. Every reach, with its schedule and case →
- Graves Creek, 2.76 mi: 0.17 (1/1 - 12/31) cfs (appropriated 2015, 15CW3157) · dossier
- Lone Tree Creek, 2.17 mi: 0.3 (1/1 - 12/31) cfs (appropriated 2016, 16CW3173) · dossier
What the water is like -- USGS sensors right now, where it has been sampled, the impaired-waters list, and how the tap water here stands with EPA -- is on the Water quality tab.
Designated groundwater basins are on their own page.
Source Adjudicated record · verify at DWR water-right transactions ↗ Source Adjudicated record · verify at DWR net amounts ↗
Decreed rights on this network run from 1860-12-31 to 2024-12-31. 18 abandonment screens and 107 compliance flags are listed below as leads for review — a screen is not an abandonment and a flag is not a violation.
Rights on file: 8938 across 7708 structure(s); 1 structure(s) carry 0 court-case references. Advisory reading aids on public DWR data — not administrative or legal conclusions.
Abandonment radar (18 screens)
Absolute rights with 10+ years of no recorded diversions. Screens only — storage, alternate points, and plan operations can explain nonuse lawfully. And diversion REPORTING itself only reached its modern level ~2009 — idleness that begins before then may be unreported use, not nonuse (flagged † below).
- SNYDER RES (0103342) DWR↗ (1902-03-20, 0.0 cfs decreed): last active 1998 — 27 years idle † predates modern reporting era — last recorded activity predates this basin's modern reporting era (~2009) -- early absence of record is weak evidence of nonuse
- SNOW UDA WL FLD (0110051) DWR↗ (2004-11-30, 0.0 cfs decreed): last active 2006 — 19 years idle † predates modern reporting era — last recorded activity predates this basin's modern reporting era (~2009) -- early absence of record is weak evidence of nonuse
- MORGAN CTY COMMUNITY C W 1-31867 (0107709) DWR↗ (1986-12-29, 0.2 cfs decreed): last active 2007 — 18 years idle † predates modern reporting era — last recorded activity predates this basin's modern reporting era (~2009) -- early absence of record is weak evidence of nonuse
- FT MORGAN WELL 47070-F (0109965) DWR↗ (2005-01-01, 0.3 cfs decreed): last active 2007 — 18 years idle † predates modern reporting era — last recorded activity predates this basin's modern reporting era (~2009) -- early absence of record is weak evidence of nonuse
- FT MORGAN WELL 56253 (0109976) DWR↗ (2005-01-01, 1.6 cfs decreed): last active 2007 — 18 years idle † predates modern reporting era — last recorded activity predates this basin's modern reporting era (~2009) -- early absence of record is weak evidence of nonuse
- FT MORGAN WELL 57064 (0109977) DWR↗ (2005-01-01, 0.3 cfs decreed): last active 2007 — 18 years idle † predates modern reporting era — last recorded activity predates this basin's modern reporting era (~2009) -- early absence of record is weak evidence of nonuse
- FT MORGAN WELL 59870 (0109978) DWR↗ (2005-01-01, 0.1 cfs decreed): last active 2007 — 18 years idle † predates modern reporting era — last recorded activity predates this basin's modern reporting era (~2009) -- early absence of record is weak evidence of nonuse
- FT MORGAN WELL 59871 (0109979) DWR↗ (2005-01-01, 0.5 cfs decreed): last active 2007 — 18 years idle † predates modern reporting era — last recorded activity predates this basin's modern reporting era (~2009) -- early absence of record is weak evidence of nonuse
- FT MORGAN WELL 59872 (0109980) DWR↗ (2005-01-01, 0.3 cfs decreed): last active 2007 — 18 years idle † predates modern reporting era — last recorded activity predates this basin's modern reporting era (~2009) -- early absence of record is weak evidence of nonuse
- FT MORGAN WELL 59873 (0109981) DWR↗ (2005-01-01, 0.5 cfs decreed): last active 2007 — 18 years idle † predates modern reporting era — last recorded activity predates this basin's modern reporting era (~2009) -- early absence of record is weak evidence of nonuse
Compliance screens (107 advisory flags)
Screened 170 of 7708 structures with rights (250 have diversion history on file). A flag is a lead for expert review — augmentation plans, exchanges, and free-river conditions can make over-decree diversions lawful and are deliberately not modeled.
- CENTRAL AUG HEADGATE WELL GROUP (0104803) DWR↗: Observed p99 daily rate 32.0 cfs (max 95.9) exceeds total decreed absolute 23.4 cfs across 2215 recorded day(s).
- TH 17 RANCH RIVER RESERVOIR PUMP (0100913) DWR↗: Observed p99 daily rate 28.2 cfs (max 29.3) exceeds total decreed absolute 4.2 cfs across 2078 recorded day(s).
- BOXELDER FLD WTR D 2 (0100616) DWR↗: Observed p99 daily rate 26.0 cfs (max 211.0) exceeds total decreed absolute 21.0 cfs across 11616 recorded day(s).
- WIGGINS FARMS WEST PUMP STATION (0100601) DWR↗: Observed p99 daily rate 19.8 cfs (max 30.9) exceeds total decreed absolute 3.3 cfs across 3551 recorded day(s).
- FLACK WELL NO 1-14525R (0106539) DWR↗: Observed p99 daily rate 18.1 cfs (max 18.1) exceeds total decreed absolute 1.7 cfs across 2538 recorded day(s).
- COCKROFT PUMP 1 (0100598) DWR↗: Observed p99 daily rate 17.3 cfs (max 22.4) exceeds total decreed absolute 4.6 cfs across 3209 recorded day(s).
- GROVES FARMS RECHARGE PUMP & PIPELINE (0100569) DWR↗: Observed p99 daily rate 17.2 cfs (max 64.1) exceeds total decreed absolute 16.4 cfs across 11109 recorded day(s).
- RIVERSIDE EMPIRE RECHARGE AREA (0102274) DWR↗: Observed p99 daily rate 16.0 cfs (max 16.0) exceeds total decreed absolute 14.4 cfs across 1406 recorded day(s).
- WESTERN SUGAR W 2-59300 (0109875) DWR↗: Observed p99 daily rate 13.1 cfs (max 14.8) exceeds total decreed absolute 6.6 cfs across 478 recorded day(s).
- RIVERSIDE GROVES S RECHARGE AREA (0102087) DWR↗: Observed p99 daily rate 12.8 cfs (max 14.6) exceeds total decreed absolute 10.8 cfs across 948 recorded day(s).
Seniority (top structures by decreed rate)
| Structure | Senior priority date | Rights | Decreed abs (cfs) | Decreed abs (AF) | Conditional? |
|---|---|---|---|---|---|
| RIVERSIDE CANAL (0100503) DWR↗ | 1876-01-01 | 21 | 5834.2 | 0 | yes |
| BIJOU CANAL (0100507) DWR↗ | 1871-10-01 | 24 | 3034.3 | 29779 | yes |
| EMPIRE DITCH (0100501) DWR↗ | 1905-05-18 | 4 | 2449.9 | 0 | — |
| NORTH STERLING CANAL (0100687) DWR↗ | 1908-06-15 | 7 | 1975.0 | 7800 | yes |
| PREWITT INLET CANAL (0100829) DWR↗ | 1910-05-25 | 4 | 1390.0 | 0 | yes |
| JACKSON LAKE RES (0103817) DWR↗ | 1901-05-18 | 4 | 1357.9 | 37904 | yes |
| LOWER PLATTE BEAVER D (0100518) DWR↗ | 1882-09-04 | 7 | 1154.0 | 0 | yes |
| JACKSON LAKE INLET DITCH (0100513) DWR↗ | 1901-05-18 | 4 | 800.0 | 0 | — |
| TREMONT DITCH (0100519) DWR↗ | 1887-06-18 | 8 | 622.0 | 0 | yes |
| FT MORGAN CANAL (0100514) DWR↗ | 1882-10-18 | 8 | 610.6 | 0 | yes |
| UPPER PLATTE BEAVER CNL (0100515) DWR↗ | 1868-04-20 | 8 | 542.2 | 0 | yes |
| CONSOLIDATED LARSON D (0100620) DWR↗ | 1885-12-28 | 5 | 413.0 | 0 | — |
| OWL CREEK DITCH (0100902) DWR↗ | 1906-04-17 | 1 | 400.0 | 0 | — |
| WELDON VALLEY DITCH (0100511) DWR↗ | 1881-10-26 | 8 | 279.5 | 6466 | yes |
| CENTRAL LATERAL (0100675) DWR↗ | 1909-07-15 | 1 | 250.0 | 0 | — |
Recent inventory & legal-document changes
- 2026-10-10 — call set: SOUTH FLAT DITCH (39707)
- 2026-10-10 — call set: STERLING IRR CO DITCH 1 (39706)
- 2026-10-10 — call released: 39612
- 2026-10-09 — call released: 39680
- 2026-10-09 — call set: SOUTH PLATTE RIVER AT WATERTON (39697)
- 2026-10-09 — call set: CHATFIELD RESERVOIR (39698)
- 2026-10-09 — call released: 39678
- 2026-10-08 — call set: TRUE WEBSTER DITCH (39693)
Water-court filings this month (division-wide)
24 applications in the 2026-08 resume for this basin's division — new rights, changes, augmentation plans — from the water clerk's statutory monthly notice (C.R.S. 37-92-302), the earliest public signal of a new claim. Filings are division-wide, not district-filtered: check the county column. Full resume PDF at the Judicial Branch →
Anyone affected may file a statement of opposition until 2026-10-31 (18 days left). C.R.S. 37-92-302(3): due by the last day of the second month following the filing month — computed, not legal advice; confirm with the water clerk.
All 24 filings, with excerpts
| Case | What it asks | County | Excerpt |
|---|---|---|---|
2026CW3039
|
— | — | CASE NO. 20 26CW3039; STATE ENGINEER AND WATER DIV 2 ENGINEER vs. ANDREW STOREY – Verified Complaint for Injunctive Relief, Penalties, and Costs. This case is being listed in the resume to account for the case number in consecutive order. ---------------------… |
2026CW3040
|
plan for augmentation, new underground right | — | CASE NO. 2026CW3040 , Water Division 2 and CASE NO. 2026CW3135, Water Division 1; JANICE L DUNCAN, 6440 Highline Place, Colorado Springs, CO, 80908 (Please address all pleadings and inquiries regarding this matter to Applicant’s attorney: Philip E. Lopez, Eric… |
2026CW3088
|
plan for augmentation | — | CASE NUMBER 2026CW3088 NORTH RANCH, LLC, c/o Robert L. Myers, 944 Cheyenne Blvd., Colorado Springs, CO 80905; Please direct all correspondence concerning the application to: Ryan W. Farr, Sedona E. Chavez, Monson, Cummins, Shohet & Farr, LLC, 13511 Northgate E… |
2026CW3089
|
— | — | CASE NUMBER 20 26CW3089 ROBERSON LIVING TRUST, c/o Tamara Roberson -George, Rex Roberson, Kevin Roberson, Co-Trustees, 18235 Black Forest Road, Colorado Springs, CO 80908; Please direct all correspondence concerning this application to: David M. Shohet, and Se… |
2026CW3119
|
change of water right, plan for augmentation, new storage right | — | CASE NUMBER 2026CW3119 SHARON AND MARK WEATHERFORD, 12328 S. State Hwy 83, Franktown, CO 80116. (Forward all pleadings and correspondence to Chris D. Cummins and Sedona E. Chavez, Monson, Cummins, Shohet & Farr, LLC, 13511 Northgate Estates Dr., Ste. 250, Colo… |
2026CW3120
4404471 |
reasonable diligence | THE CITY AND | CASE NUMBER 2026CW3120 THE CITY AND COUNTY OF DENVER, ACTING BY AND THROUGH ITS BOARD OF WATER COMMISSIONERS (“Denver Water” or “Applicant”), 1600 West 12th Avenue, Denver, Colorado 80204. Jessica R. Brody, General Counsel, Daniel J. Arnold, James M. Wittler, … |
2026CW3121
|
— | — | CASE NUMBER 2026CW3121 (2018CW3222)… |
2026CW3122
|
plan for augmentation, new underground right | — | CASE NUMBER 2026CW3122 DOUBLE S CONSTRUCTION & DESIGN LLC, ATTN: Scott Berry, 42631 Sager Lane, Parker, CO, 80138. APPLICATION FOR UNDERGROUND WATER RIGHTS FROM NONTRIBUTARY AND NOT-NONTRIBUTARY SOURCES AND APPROVAL OF PLAN FOR AUGMENTATION, IN THE NONTRIBUTAR… |
2026CW3123
|
reasonable diligence | THE CITY AND | CASE NUMBER 2026CW3123 THE CITY AND COUNTY OF DENVER, ACTING BY AND THROUGH ITS BOARD OF WATER COMMISSIONERS (“Denver Water” or “Applicant”), 1600 West 12th Avenue, Denver, Colorado 80204. Jessica R. Brody, General Counsel, Daniel J. Arnold, James M. Wittler, … |
2026CW3124
|
reasonable diligence, make absolute, new underground right | — | CASE NUMBER 2026CW3124 WESTERN EQUIPMENT AND TRUCK, INC. , 2055 1 st Ave., Greeley, CO 80631, 970 -353-6682. P. Andrew Jones, Law Office of P. Andrew Jones, 1213 Founders Circle, Windsor, CO 80550, 970 -297-0570, ajones@pandrewjones.com. APPLICATION TO MAKE CO… |
2026CW3125
0600538 0600565 0600576 |
reasonable diligence | EASONABLE DILIGENCE IN BOULDER | CASE NUMBER 2026CW3125 (90CW108) (99CW125) (12CW72) (20CW3017) APPLICATION FOR FINDING OF REASONABLE DILIGENCE IN BOULDER COUNTY . 1. Name, Mailing Address, Phone Number, and E -mail Address of Applicant . CITY OF LAFAYETTE , c/o Cari Bischoff, Water Resources… |
2026CW3126
0815262 0815263 0815264 |
reasonable diligence, make absolute | — | CASE NUMBER 2026CW3126 MARY GUENZEL CHARITABLE TRUST, P.O. Box 9, Woodland Park, Colorado 80866; Please direct all correspondence concerning this application to: Ryan W. Farr, Monson, Cummins, Shohet & Farr, LLC, 13511 Northgate Estates Drive, Suite 250, Color… |
2026CW3127
|
new underground right | UPPER LARAMIE AQUIFER IN WELD | CASE NUMBER 2026CW3127 THE CITY OF GREELEY, ACTING BY AND THROUGH ITS WATER AND SEWER BOARD, AND THE COLORADO STATE BOARD OF LAND COMMISSIONERS. APPLICATION FOR NONTRIBUTARY UNDERGROUND WATER RIGHTS IN THE UPPER LARAMIE AQUIFER IN WELD COUNTY. I. Name, mailing… |
2026CW3128
|
reasonable diligence, make absolute | — | CASE NUMBER 2026CW3128 Applicant. CHRIS DINSDALE, P.O. Box 1807, Sterling, CO 80751, 970-522-9052 with all correspondence connected herewith being sent to Applicant’s Counsel, David P. Jones, Lawrence Custer Grasmick Jones & Donovan, LLP., 5245 Ronald Regan Bl… |
2026CW3129
|
plan for augmentation, new underground right | PLAN FOR AUGMENTATION IN ELBERT | CASE NUMBER 2026CW3129 VANCE ROBERT ANDRUS & TONI COLLEEN ANDRUS , 6414 Sherman Peak, Castle Rock, Colorado 80108. APPLICATION FOR UNDERGROUND WATER RIGHTS FROM NONTRIBUTARY AND NOT-NONTRIBUTARY SOURCES AND APPROVAL OF PLAN FOR AUGMENTATION IN ELBERT COUNTY . … |
2026CW3130
|
— | — | CASE NUMBER 2026CW 3130 THE CITY OF GREELEY, ACTING BY AND THROUGH ITS WATER AND SEWER BOARD c/o Leah Hubbard, Deputy Director of Water Resources, 1001 – 11th Avenue, 2nd Floor, Greeley, Colorado 80631, leah.hubbard@greeleygov.com, (970) 350-9811. Please send … |
2026CW3131
|
reasonable diligence | — | CASE NUMBER 2026CW3131 CITY OF LOVELAND , Colorado (“Loveland”), c/o Noah Cecil, Assistant City Attorney, 500 East Third Street, #330, Loveland, Colorado 80537, Telephone: (970) 962 - 2434. APPLICATION FOR FINDING OF REASONABLE DILIGENCE IN LARIMER AND WELD CO… |
2026CW3132
|
— | — | CASE NUMBER 2026CW3132 Applicants. THE CENTRAL COLORADO WATER CONSERVANCY DISTRICT AND THE GROUNDWATER MANAGEMENT SUBDISTRICT OF THE CENTRAL COLORADO WATER CONSERVANCY DISTRICT , 3209 West 28 th Street, Greeley, Colorado, 80634, 970-330-4540 with all future co… |
2026CW3133
|
reasonable diligence | — | CASE NUMBER 2026CW3133 CHELEY LAND, LLC AND CHELEY COLORADO CAMPS, LLC (f.k.a. Cheley Colorado Camps, Inc.) , 601 Steele Street, P.O. Box 6525, Denver, CO 80206. c/o Karen L. Henderson, Bushong & Holleman PC, 1966 13th Street, Suite 270, Boulder, CO 80302; (30… |
2026CW3139
|
change of water right | — | CASE NUMBER 2026CW3139 ALBERT WENDELL NELSON REVOCABLE TRUST c/o Wendell Nelson, Trustee 5537 N. County Road 9 Fort Collins, CO 80524 303 -921-4750 Sally Jean Nelson Revocable Trust c/o Wendell Nelson, Trustee 5537 N. County Road 9 Fort Collins, CO 80524 303 -… |
2026CW3140
|
plan for augmentation | PLAN FOR AUGMENTATION IN ELBERT | CASE NUMBER 2026CW3140 DAVID JOE KRAXNER III, 754 Highway 86, Elizabeth, CO, 80107. Philip E. Lopez, Eric K. Trout, Fairfield and Woods, P.C., 1801 California St, Suite 2600, Denver, CO, 80202. APPLICATION FOR A PLAN FOR AUGMENTATION IN ELBERT COUNTY. Subject … |
2026CW3141
|
plan for augmentation | — | CASE NUMBER 2026CW3141 KELTY COLORADO FAMILY LLLP, C/o Bruff Shea, P.O. Box 21, Franktown, Colorado 80166. Please direct all pleadings and correspondence to Applicants counsel: Michael A. Kopp, Trout Raley PC, 1120 Lincoln St., Suite 1600, Denver, CO 80203, (3… |
2026CW3142
|
new underground right | — | CASE NUMBER 2026CW3142 1. Name, address, and telephone number of Applicant and Landowner: 1.1. Applicant and Landowner: CAP LAND LLC, a Colorado limited liability company 47 (“CAP Land”) c/o Lena Vander Laan P.O. Box 105 Henderson, CO 80640 Please direct all c… |
2026CW9
|
reasonable diligence, make absolute | LARIMER | CASE NUMBER 2026CW9 SPRING44 DISTILLING, INC. (“Spring44”), 505 West 66th Street, Loveland, Colorado 80538, Telephone: (970) 445 -7109. APPLICATION FOR FINDINGS OF REASONABLE DILIGENCE AND CLAIM TO MAKE CERTAIN AMOUNTS ABSOLUTE IN LARIMER COUNTY. 2. Lindauer S… |
Active substitute water supply plans in this district
Temporary State Engineer approvals to divert out of priority (37-92-308 / 37-90-137). A structure operating under one behaves differently under a call than its decreed rights alone suggest — the priority tables above don't know about these; this list does. Source: DWR’s active-SWSP register, refreshed nightly.
| Plan | Type | Status | Expires | Structure | Documents |
|---|---|---|---|---|---|
| FMRIC JACKSON LAKE | 37-92-308(7) PLAN EMERGENCY | Approved | 2026-05-28 | — | plan file |
| CENTRAL COLORADO WATER CONSERVANCY DISTRICT- GMSD - 26CW3005 | 37-92-308(4) PLAN PENDING COURT APPLICATION | Approved | 2027-05-25 | — | plan file |
| BIJOU IRRIGATION COMPANY EMERGENCY | 37-92-308(5) PLANS LESS THAN 5 YEARS | Approved | 2027-05-31 | 0103339 | plan file |
| RIVERSIDE RESERVOIR AND IRRIGATION COMPANY | 37-92-308(5) PLANS LESS THAN 5 YEARS | Approved | 2027-05-31 | — | plan file |
| TOWN OF EATON WELL NOS. 2A AND 2B | 37-92-308(4) PLAN PENDING COURT APPLICATION | Decreed | 2025-12-31 | — | plan file |
| MORTENSON CONSTRUCTION | 37-92-308(5) PLANS LESS THAN 5 YEARS | Pending | — | — | plan file |
| EAST CHERRY CREEK VALLEY WATER & SANITATION DISTRICT - 7.5 BEDC SHARES | 37-92-308(4) PLAN PENDING COURT APPLICATION | Division Review | — | — | plan file |
| ZADEL PIT (AKA NCCI PIT #1 RESERVOIR) | 37-92-308(4) PLAN PENDING COURT APPLICATION | Additional Info Needed | — | 0202611 | plan file |
Water quality
The water itself, in this district
Four registers, each on its own schedule: what USGS sensors read right now, where samples have been taken, which stretches the state lists as impaired, and how the tap water of the systems here stands with EPA. None is a DWR record; each links its own page.
Right now
Source Provisional telemetry · fetched 2026-10-13 · verify at USGS current conditions ↗
No USGS continuous water-quality sensor reports from inside this district. Statewide sensors →
Where water has been sampled
Source Register of another agency · fetched 2026-10-08 · verify at Water Quality Portal ↗
The portal lists 8,828 sampling stations in this district's watersheds (Middle South Platte-Cherry Creek 10190003, 21% of the district; Bijou 10190011, 19% of the district; Beaver 10190013, 16% of the district; Middle South Platte-Sterling 10190012, 15% of the district; Crow 10190009, 12% of the district; Kiowa 10190010, 10% of the district; Lone Tree-Owl 10190008, 6% of the district), of which 274 reported a sample in the last 5 years on the state and tribal side (USGS activity is in the station count, not in that figure). Most active: Colorado Dept. of Public Health & Environment-WQCD (162), USGS Colorado Water Science Center (47), Metro Water Recovery (formerly Metro Wastewater Reclamation District) (45). Most-sampled groups: Inorganics, Major, Metals, Physical, Nutrient, Organics, Pesticide. Every station as a file ↗
Results themselves are not fetched here; USGS samples added after March 2024 may not be in the portal's legacy profiles yet.
Drinking water
Source Register of another agency · fetched 2026-10-07 · verify at EPA SDWIS ↗
38 community systems touch this district. None carries an open health-based violation on EPA's record. EPA sampled 8 of them for PFAS in 2023–25; none had PFOA or PFOS at or above the 2024 limit.
| System | Serves | EPA record | PFAS (UCMR 5) | Lead, latest 90th pct |
|---|---|---|---|---|
| DENVER WATER BOARD | 1,287,000 | 11 of 12 quarters with a violation | none detected | 0.0036 mg/L |
| AURORA CITY OF | 533,407 | clean, last 12 quarters | 4 detected, under the limits | 0.0047 mg/L |
| SOUTH ADAMS COUNTY WSD | 75,559 | clean, last 12 quarters | 3 detected, under the limits | 0.0 mg/L |
| NORTH WELD COUNTY WD | 15,890 | clean, last 12 quarters | none detected | 0.0034 mg/L |
| FT MORGAN CITY OF | 12,000 | 1 of 12 quarters with a violation | none detected | 0.003 mg/L |
| MORGAN COUNTY QUALITY WD | 8,116 | clean, last 12 quarters | none detected | 0.001 mg/L |
| CENTRAL WELD CNTY WD | 7,662 | clean, last 12 quarters | none detected | — |
| BRUSH CITY OF | 5,122 | 1 of 12 quarters with a violation | none detected | 0.0015 mg/L |
| KEENESBURG TOWN OF | 4,650 | clean, last 12 quarters | not sampled | 0.003 mg/L |
| ELIZABETH TOWN OF | 4,523 | clean, last 12 quarters | not sampled | 0.004 mg/L |
and 28 more; the full directory filters by district.
EPA's record carries violations and lead/copper percentiles; nitrate and disinfection by-product results are not in it. UCMR 5 samples are monitoring, not compliance, and the 2024 PFOA/PFOS limits equal its reporting limit, so any detection of those two is at or above them.
Impaired waters
Source Register of another agency · verify at EPA ATTAINS ↗
The state's 303(d) impaired-waters list has not been joined to this basin's own watershed boundary yet, so nothing is shown rather than a guess; the basins with a join carry the full list here. Why the join is geometry, not a name match.
Call cascade
If a call were placed at a given seniority, which structures in this basin would be out of priority, and how much of their decreed rate would be curtailed? Computed from this basin's cached decrees.
What this does and doesn't model. Seniority arithmetic only: every right junior to the call is treated as curtailed. It does not model reach applicability — structures downstream of the calling point are not administered by it — and it applies no futile-call judgment. Read it as “who is junior to this date, and by how much,” not as a prediction of what the Division Engineer would actually order.
Pick a calling right
Real decrees from this basin, ordered by administration number — that is, by actual seniority. The years will look out of order, and that is correct: an administration number encodes the adjudication date as well as the appropriation date, so a right appropriated in 1970 can be administered ahead of one from 1950. A senior call curtails almost everything; a junior one curtails almost nothing.
Or enter an administration number directly
DWR administration numbers encode appropriation and adjudication dates; lower is more senior.
This week's diagnostic
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System status
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Active river calls
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Hydrographs vs. historical envelope
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Anomaly flags
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Topology cross-check: 9 parent disagreements, 8 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 22 streams, 13 agree. Know this water? Tell us →
| Stream | This site routes it to | DWR routes it to |
|---|---|---|
| Yerby Draw | the mainstem | Crow Creek |
| Crow Creek | Cache La Poudre River | South Platte River |
| Spring Creek | the mainstem | Lone Tree Creek |
| Owl Creek | the mainstem | Lone Tree Creek |
| Lone Tree Creek | Cache La Poudre River | South Platte River |
| Sand Arroyo Creek | the mainstem | Badger Creek |
| East Bijou Creek | the mainstem | Bijou Creek |
| Middle Bijou Creek | the mainstem | East Bijou Creek |
Sizable streams DWR maps here that this network does not carry:
Kiowa Creek (122 mi) · Badger Creek (99 mi) · Twentytwo Slough (27 mi) · Camp Creek (26 mi) · Greasewood Draw (9 mi) · Antelope Draw (9 mi) · Dead Horse Draw (8 mi) · Cris Draw (aka Cris Lee Draw) (6 mi)