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Cache La Poudre River

Division 1 · Water District 3 · As of 2026-08-26 10:58 MDT

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Reconstruct conditions as of

Evolution of the network

Gage flow trend & changepoints

What counts as a trend here

Computed 2026-08-20 08:19 from 66 gage(s) with cached period-of-record data. Mann-Kendall (trend) 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.”

Of the 66 gages with enough record, 2 are trending down and 3 up, and 5 carry a detected shift. The clearest is JOE WRIGHT CREEK BELOW JOE WRIGHT RESERVOIR, CO., +27.9 points of its long-term median per decade over 49 years (p<0.0001). The other 60 show no clear signal either way.

Gage	Trend	Change / decade points of median	Significance	Years	Changepoint
▸ JOE WRIGHT CREEK BELOW JOE WRIGHT RESERVOIR, CO. JOEBELCO	↑ increasing	+27.9	p=0.000	49	~1996
▸ CACHE LA POUDRE RIVER AT FORT COLLINS, CO CLAFORCO	↑ increasing	+22.6	p=0.026	52	~2008
▸ FT. COL. CA. AT CACHE LA POUDRE R. NR. CLACANCO	no clear trend	+13.5	p=0.064	20	~1973
▸ CACHE LA POUDRE NEAR GREELEY CLAGRECO	↑ increasing	+9.2	p=0.000	110	~1969
▸ CANAL # 3 NEAR GREELEY CANAL3CO	↓ decreasing	-7.4	p=0.003	28	—
▸ CACHE LA POUDRE AT CANYON MOUTH NEAR FORT COLLINS CLAFTCCO	↓ decreasing	-4.4	p=0.000	141	~1930

60 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. 45 gage(s) and 131 structure(s) report in 2026, but structure reporting only reached half its modern level around ~1982. 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)
1880s	1	0
1890s	1	0
1900s	1	0
1910s	2	0
1920s	2	0
1930s	4	0
1940s	6	0
1950s	12	26
1960s	16	28
1970s	16	77
1980s	16	100
1990s	14	102
2000s	22	132
2010s	28	164
2020s	44	148

Mass-balance (network closure) trend

Structure divrec-history backfill coverage as of the last check: 3% of 3144 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 (4211 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.

LARIMER AND WELD IRRIGATION COMPANY @ 30 FT PARSHALL FLUME: reach shifted from +13 cfs to +202 cfs summer mean (more gaining, p=0.003, 32 yr) [alluvial valley: real alluvial aquifer -- a decades-long shift toward losing is the classic signature of alluvial pumping and urbanization]
NORTH POUDRE CANAL: reach shifted from +6 cfs to +15 cfs summer mean (more gaining, p=0.043, 11 yr) [crystalline foothills: minimal groundwater storage -- large or shifting unaccounted losses here are more consistent with data/measurement issues or unmodeled plumbing than with aquifer exchange] [measurement-evolution caution: this shift co-moves with the growth of the gage/metering network (rho=-0.48) -- part of it may be unaccounted water becoming accounted, not hydrologic change]
LARIMER COUNTY #2 @ 12 FT PARSHALL FLUME: reach shifted from -189 cfs to +1 cfs summer mean (more gaining, p=0.000, 28 yr) [alluvial valley: real alluvial aquifer -- a decades-long shift toward losing is the classic signature of alluvial pumping and urbanization]
CACHE LA POUDRE RIVER BELOW NEW CACHE: reach shifted from -88 cfs to +189 cfs summer mean (more gaining, p=0.000, 32 yr) [alluvial valley: real alluvial aquifer -- a decades-long shift toward losing is the classic signature of alluvial pumping and urbanization] [30 alluvial wells within 2 mi of the gage; pooled water table -0.4 ft (1941–1992, no_trend)]
CACHE LA POUDRE RIVER AT FORT COLLINS, CO: reach shifted from +461 cfs to +84 cfs summer mean (more losing, p=0.009, 52 yr) [alluvial valley: real alluvial aquifer -- a decades-long shift toward losing is the classic signature of alluvial pumping and urbanization]
CANAL # 3 NEAR GREELEY: reach shifted from -84 cfs to +44 cfs summer mean (more gaining, p=0.000, 30 yr) [sedimentary plains/foothills: moderate groundwater connectivity -- gain/loss shifts can be real aquifer response; corroborate with nearby well records] [30 alluvial wells within 2 mi of the gage; pooled water table +0.1 ft (1941–1992, no_trend)]

Groundwater now has its own tab: 1026 monitored well(s), water-table trends, stream corridors, and the advisory depletion screen.

Reservoirs now has its own tab: 117 reservoir(s), end-of-year storage back to 1950, click-to-chart histories.

Cross-gage pattern fingerprint

Over the 52-year window with full coverage (1975–2026), the dominant shared pattern across 3 gage(s) explains 92% 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 2026-08-14)

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.

CANAL 3 16TH STREET RETURN (return): +35.0 cfs (100% of that reach's correction)
NEW CACHE SERFER AUG STATION RETURN (return): +31.0 cfs (100% of that reach's correction)
WHITNEY DITCH WEST RETURN (return): +21.5 cfs (50% of that reach's correction)
NEW CACHE ORR LATERAL AUG STATION RETURN (return): +21.5 cfs (50% of that reach's correction)
OGILVY RETURN STRUCTURE (return): +15.1 cfs (50% of that reach's correction)
OGILVY D CENTRAL AUG RETURN (return): +15.1 cfs (50% of that reach's correction)
ACWWA DONALDSON SURFACE RTN POINT IMPACT (return): +12.3 cfs (100% of that reach's correction)
WHITNEY DITCH EAST RETURN (return): -1.4 cfs (9% of that reach's correction)
CANAL 3 F STREET RETURN (return): -1.4 cfs (9% of that reach's correction)
BOYD FREEMAN DITCH RETURN (return): -1.4 cfs (9% 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_20260707 (imported 2026-08-19) for history, plus the CDSS REST API for current conditions.

Check	State	What was measured
gage freshness	current	newest gage reading is 6 day(s) old
diversion record	stale	newest diversion record is 658 day(s) old (DWR publishes ~1 year in arrears)
structure coverage	sparse	3% of schematic structures have data

Independent check: PASS — 100.0000% agreement across 15,052 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 — 99.58% day-level agreement with USGS's own published records for the same gages, across 19 co-listed station(s) and 196,848 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.

66 gage(s) / 661,189 daily values (1881-07-01–2026-08-14); 358 structure(s) with diversion records; 2961 with decreed rights. Methodology has not yet had independent expert review — treat every figure as an advisory screen, not an administrative or legal conclusion.

11,451 water-level measurements across 1026 monitored well(s) — 912 alluvial, 4 bedrock — plus 4 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 49 well(s) with enough record for a trend test: 13 declining, 7 rising.

Fastest-declining wells	Setting	ft / decade	Span	p
▸ 83-1	alluvial	-8.03	17 yr	0.0001
▸ 110-3	alluvial	-2.03	17 yr	0.0049
▸ SB00906834ABB	alluvial	-1.94	20 yr	0.004
▸ SB00706603BAB	alluvial	-1.26	16 yr	0.0051
▸ SB00806827CBB2	alluvial	-0.83	30 yr	0.0165
▸ SB00706614AAB	alluvial	-0.82	55 yr	0.0014
▸ LSP-062 06N6712BBB	alluvial	-0.66	85 yr	0.0
▸ SB00606812AAA	alluvial	-0.52	17 yr	0.0001

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.

LARIMER AND WELD IRRIGATION COMPANY @ 30 FT PARSHALL FLUME: 19 alluvial well(s) nearby

LARIMER COUNTY #2 @ 12 FT PARSHALL FLUME: 7 alluvial well(s) nearby

CACHE LA POUDRE RIVER BELOW NEW CACHE: 30 alluvial well(s) nearby; pooled water table -0.4 ft (1941–1992, no_trend, p=0.2157). Glover screen: 0.4 cfs of nearby metered alluvial pumping → est. lagged depletion 0.2–0.4 cfs (uncalibrated T/S ranges; flagged for SPDSS calibration, AWAS cross-check, and expert review — DWR's AWAS is the authority).

CACHE LA POUDRE RIVER AT FORT COLLINS, CO: 15 alluvial well(s) nearby

CANAL # 3 NEAR GREELEY: 30 alluvial well(s) nearby; pooled water table +0.1 ft (1941–1992, no_trend, p=0.5954). Glover screen: 0.1 cfs of nearby metered alluvial pumping → est. lagged depletion 0.1–0.1 cfs (uncalibrated T/S ranges; flagged for SPDSS calibration, AWAS cross-check, and expert review — DWR's AWAS is the authority).

CACHE LA POUDRE RIV AB BOXELDER CRK NR TIMNATH, CO: 54 alluvial well(s) nearby; pooled water table +1.9 ft (1941–1985, increasing, p=0.0002). Glover screen: 0.0 cfs of nearby metered alluvial pumping → est. lagged depletion 0.0–0.0 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.

117 reservoir(s) with 63,331 storage measurement(s), 1950–2025. Basin storage as of 2024-10-31 (the record's own end — reservoir records publish ~annually): 220,243 AF across 95 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.

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 reservoir to chart its full storage history.

Reservoir	Last recorded storage (AF)	As of
▸ HORSETOOTH RESERVOIR (0303732)	96,972	2024-10-31
▸ UNNAMED IRR A COL PONDS (0303734)	95,723	1973-11-01
▸ COBB LAKE RES (0303730)	17,170	2024-10-31
▸ RAWHIDE RES (0303952)	15,428	2024-10-31
▸ WINDSOR RES (0303738)	10,880	2024-10-31
▸ RES NO 8 (0303727)	6,704	2024-10-31
▸ RIST CANON RES (0303812)	6,428	1986-05-31
▸ PARK CREEK RES 1 (0303752)	5,630	1971-11-01

Decreed rights on this network run from 1860-06-01 to 2021-03-31. 25 abandonment screens and 23 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: 4895 across 2961 structure(s); 0 structure(s) carry 0 court-case references. Advisory reading aids on public DWR data — not administrative or legal conclusions.

Abandonment radar (25 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 ~1982 — idleness that begins before then may be unreported use, not nonuse (flagged † below).

MARTIN CALLOWAY DITCH (0301109) (1868-03-01, 15.2 cfs decreed): last active 1977 — 47 years idle † predates modern reporting era — last recorded activity predates this basin's modern reporting era (~1982) -- early absence of record is weak evidence of nonuse
CHAFFEE DITCH (0300925) (1872-03-10, 22.4 cfs decreed): last active 1979 — 45 years idle † predates modern reporting era — last recorded activity predates this basin's modern reporting era (~1982) -- early absence of record is weak evidence of nonuse
BOXELDER CHANNEL DITCH 1 (0301115) (1880-05-01, 2.5 cfs decreed): last active 1979 — 45 years idle † predates modern reporting era — last recorded activity predates this basin's modern reporting era (~1982) -- early absence of record is weak evidence of nonuse
BOXELDER RES 1 (0303717) (1883-07-01, 0.0 cfs decreed): last active 1987 — 37 years idle
WILLIAM CALLOWAY DITCH 2 (0300996) (1875-01-28, 4.9 cfs decreed): last active 1992 — 32 years idle
SWANSON RES (0303568) (1935-12-31, 0.0 cfs decreed): last active 1993 — 31 years idle
MITCHELL WEYMOUTH D 1 (0301040) (1874-05-15, 17.4 cfs decreed): last active 1996 — 28 years idle
GRAY RES 3 (0303748) (1904-11-14, 0.0 cfs decreed): last active 1997 — 27 years idle
CHASE DITCH (0300997) (1880-07-07, 21.4 cfs decreed): last active 2000 — 24 years idle
PANHANDLE RES (0303814) (1968-12-12, 0.0 cfs decreed): last active 2002 — 22 years idle

Compliance screens (23 advisory flags)

Screened 53 of 2961 structures with rights (150 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.

POUDRE VALLEY CANAL (0300907): Observed p99 daily rate 410.0 cfs (max 642.0) exceeds total decreed absolute 29.5 cfs across 21745 recorded day(s). Structure holds an Augmentation-use decree -- diversions above the direct-flow decree can be lawful under plan operations; interpret with care.
CACHE LA POUDRE DITCH (0300915): Observed p99 daily rate 101.0 cfs (max 155.0) exceeds total decreed absolute 82.5 cfs across 47266 recorded day(s). Structure holds an Augmentation-use decree -- diversions above the direct-flow decree can be lawful under plan operations; interpret with care.
OGILVY DITCH (0300937): Observed p99 daily rate 92.8 cfs (max 129.0) exceeds total decreed absolute 91.1 cfs across 34158 recorded day(s). Structure holds an Augmentation-use decree -- diversions above the direct-flow decree can be lawful under plan operations; interpret with care.
GREELEY FILTERS PIPELINE (0300908): Observed p99 daily rate 40.1 cfs (max 57.5) exceeds total decreed absolute 28.0 cfs across 96130 recorded day(s). Structure holds an Augmentation-use decree -- diversions above the direct-flow decree can be lawful under plan operations; interpret with care.
WETZLR WYMOUTH MITCHEL D (0301041): Observed p99 daily rate 15.9 cfs (max 20.0) exceeds total decreed absolute 13.4 cfs across 4982 recorded day(s).
TAYLOR GILL DITCH (0301029): Observed p99 daily rate 13.9 cfs (max 49.4) exceeds total decreed absolute 12.2 cfs across 28961 recorded day(s). Structure holds an Augmentation-use decree -- diversions above the direct-flow decree can be lawful under plan operations; interpret with care.
NEW CACHE EATON DRAW DIVERSION (0300773): Observed p99 daily rate 12.9 cfs (max 97.0) exceeds total decreed absolute 7.4 cfs across 3996 recorded day(s). Structure holds an Augmentation-use decree -- diversions above the direct-flow decree can be lawful under plan operations; interpret with care.
EAGLE LAKE (0303351): Observed p99 daily rate 10.4 cfs (max 11.7) exceeds total decreed absolute 4.5 cfs across 82 recorded day(s). Structure holds an Augmentation-use decree -- diversions above the direct-flow decree can be lawful under plan operations; interpret with care.
PEERY DITCH NO 1 (0301051): Observed p99 daily rate 5.2 cfs (max 6.2) exceeds total decreed absolute 3.5 cfs across 1400 recorded day(s).
SOUTH FORK PIPELINE (0301059): Observed p99 daily rate 5.0 cfs (max 7.4) exceeds total decreed absolute 4.1 cfs across 1190 recorded day(s). Structure holds an Augmentation-use decree -- diversions above the direct-flow decree can be lawful under plan operations; interpret with care.

Seniority (top structures by decreed rate)

Structure	Senior priority date	Rights	Decreed abs (cfs)	Decreed abs (AF)	Conditional?
LARIMER WELD IRR CANAL (0300919)	1861-06-01	45	2797.5	0	—
NEW CACHE LA POUDRE CO DITCH (0300929)	1862-03-01	30	763.6	0	yes
LARIMER COUNTY DITCH (0300911)	1861-06-01	40	750.0	0	yes
NORTH POUDRE CANAL (0300994)	1861-06-01	57	715.0	0	—
NORTH POUDRE SUPPLY CNL (0300905)	1861-06-01	57	281.2	0	yes
LARIMER WELD WEST DRAIN (0301305)	1864-06-01	2	220.0	900	—
CANAL 3 DITCH (0300934)	1870-04-01	14	181.9	76	yes
LARIMER COUNTY NO 2 D (0300914)	1861-06-01	42	178.5	440	yes
LARIMER CO NO 2 SPG CR (0301104)	1873-04-01	1	175.0	0	—
LARIMER WELD MIDDLE DRAN (0301304)	1864-06-01	2	170.0	500	—
LARIMER WELD EAST DRAIN (0301306)	1864-06-01	2	170.0	630	—
NEW MERCER D SPG CR DIVR (0301088)	1872-07-01	2	164.0	0	—
LAKE CANAL DITCH (0300922)	1861-06-01	24	158.3	590	—
PLEASANT VALLEY LAKE CNL (0300910)	1861-06-01	28	137.9	0	—
CACHE LA PODR RES INLET CANAL (0300924)	1865-04-10	8	120.0	0	—

No inventory or legal-document changes detected since the daily watch began.

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

Administration number

DWR administration numbers encode appropriation and adjudication dates; lower is more senior.

Stream	Gage	R-mile	Predicted (cfs)	Observed (cfs)	Δ (cfs)	Reach (mi)	Hypothesis
MAINSTEM	HORSETOOTH RESERVOIR (OUTFLOW) (HOROUTCO)	114.4	0.0	338.7	+338.7	0.6	Unaccounted +338.7 cfs gain over 0.6 mi. No structure clearly responsible — possible ungaged return flow, baseflow from groundwater, or unmodeled tributary inflow.
MAINSTEM	ARTHUR/FT. COLLINS IRR CANAL (ARTCANCO)	116.3	338.7	2.0	-336.7	1.9	Unaccounted -336.7 cfs loss over 1.9 mi. No structure clearly responsible — possible ungaged diversion, channel seepage / phreatophyte loss, or evapotranspiration.
MAINSTEM	PLEASANT VALLEY LAKE CNL (PVLCANCO)	109.1	309.9	29.0	-280.9	0.4	Unaccounted -280.9 cfs loss over 0.4 mi. No structure clearly responsible — possible ungaged diversion, channel seepage / phreatophyte loss, or evapotranspiration.
MAINSTEM	JACKSON DITCH (JAKDITCO)	112.5	239.0	9.7	-229.3	2.2	Unaccounted -229.3 cfs loss over 2.2 mi. No structure clearly responsible — possible ungaged diversion, channel seepage / phreatophyte loss, or evapotranspiration.
MAINSTEM	LARIMER COUNTY DITCH (LACDITCO)	110.2	29.0	239.0	+210.0	1.2	Unaccounted +210.0 cfs gain over 1.2 mi. No structure clearly responsible — possible ungaged return flow, baseflow from groundwater, or unmodeled tributary inflow.
MAINSTEM	CACHE LA POUDRE AT CANYON MOUTH NEAR FORT COLLINS (CLAFTCCO)	107.8	2.3	157.6	+155.3	4.3	Unaccounted +155.3 cfs gain over 4.3 mi. No structure clearly responsible — possible ungaged return flow, baseflow from groundwater, or unmodeled tributary inflow.
MAINSTEM	HANSEN SUPPLY CANAL TO CACHE LA POUDRE RIVER NEAR FORT COLLINS (HSCCLPCO)	108.7	157.6	309.9	+152.3	1.0	Unaccounted +152.3 cfs gain over 1.0 mi. No structure clearly responsible — possible ungaged return flow, baseflow from groundwater, or unmodeled tributary inflow.
MAINSTEM	LARIMER AND WELD IRRIGATION COMPANY @ 30 FT PARSHALL FLUME (LAWIRRCO)	116.6	2.0	138.4	+136.5	0.3	Unaccounted +136.5 cfs gain over 0.3 mi. No structure clearly responsible — possible ungaged return flow, baseflow from groundwater, or unmodeled tributary inflow.
MAINSTEM	CACHE LA POUDRE RIVER AT FORT COLLINS, CO (CLAFORCO)	119.3	138.4	18.4	-120.0	2.7	Unaccounted -120.0 cfs loss over 2.7 mi. No structure clearly responsible — possible ungaged diversion, channel seepage / phreatophyte loss, or evapotranspiration.
MAINSTEM	BOBCREEK DITCH NEAR DEADMAN MTN., NEAR GLENDEVEY (BOBGLNCO)	63.5	76.5	0.0	-76.5	8.8	Unaccounted -76.5 cfs loss over 8.8 mi. No structure clearly responsible — possible ungaged diversion, channel seepage / phreatophyte loss, or evapotranspiration.
MAINSTEM	NEW CACHE LA POUDRE CANAL NEAR TIMNATH (CLAIRRCO)	131.2	58.8	1.1	-57.7	0.3	Unaccounted -57.7 cfs loss over 0.3 mi. No structure clearly responsible — possible ungaged diversion, channel seepage / phreatophyte loss, or evapotranspiration.
MAINSTEM	OGILVY DITCH (OGIDITCO)	159.4	1.0	49.5	+48.5	1.0	Unaccounted +48.5 cfs gain over 1.0 mi. Likely cause: stale/missing return data at OGILVY RETURN STRUCTURE, OGILVY D CENTRAL AUG RETURN.
MAINSTEM	NEW SAND CREEK LATERAL DITCH (NSCDITCO)	160.1	49.5	1.0	-48.4	0.8	Unaccounted -48.4 cfs loss over 0.8 mi. No structure clearly responsible — possible ungaged diversion, channel seepage / phreatophyte loss, or evapotranspiration.
MAINSTEM	CANAL # 3 NEAR GREELEY (CANAL3CO)	147.6	2.9	43.9	+41.0	0.8	Unaccounted +41.0 cfs gain over 0.8 mi. Likely cause: stale/missing return data at WHITNEY DITCH WEST RETURN, NEW CACHE ORR LATERAL AUG STATION RETURN.
MAINSTEM	GREELEY WASTEWATER PLANT EFFLUENT (GREWASCO)	158.4	41.8	1.0	-40.8	0.1	Unaccounted -40.8 cfs loss over 0.1 mi. No structure clearly responsible — possible ungaged diversion, channel seepage / phreatophyte loss, or evapotranspiration.
MAINSTEM	CACHE LA POUDRE NEAR GREELEY (CLAGRECO)	160.7	1.0	40.2	+39.2	0.6	Unaccounted +39.2 cfs gain over 0.6 mi. Likely cause: stale/missing return data at CANAL 3 16TH STREET RETURN.
MAINSTEM	WHITNEY DITCH DIVERSION (WHITNYCO)	134.9	1.1	35.4	+34.3	3.6	Unaccounted +34.3 cfs gain over 3.6 mi. Likely cause: stale/missing return data at NEW CACHE SERFER AUG STATION RETURN.
MAINSTEM	FOSSIL CREEK OUTLET (FOSOUTCO)	130.5	18.9	45.3	+26.4	5.9	Unaccounted +26.4 cfs gain over 5.9 mi. No structure clearly responsible — possible ungaged return flow, baseflow from groundwater, or unmodeled tributary inflow.
MAINSTEM	B H EATON DIVERSION (BHEATNCO)	135.0	35.4	10.8	-24.6	0.1	Unaccounted -24.6 cfs loss over 0.1 mi. No structure clearly responsible — possible ungaged diversion, channel seepage / phreatophyte loss, or evapotranspiration.
MAINSTEM	MUNROE CANAL (MUNCANCO)	102.1	0.2	22.6	+22.5	36.6	Unaccounted +22.5 cfs gain over 36.6 mi. No structure clearly responsible — possible ungaged return flow, baseflow from groundwater, or unmodeled tributary inflow.
MAINSTEM	NORTH FORK CACHE LA POUDRE RIVER AT LIVERMORE, CO (CLANLICO)	103.2	22.6	4.8	-17.8	1.1	Unaccounted -17.8 cfs loss over 1.1 mi. No structure clearly responsible — possible ungaged diversion, channel seepage / phreatophyte loss, or evapotranspiration.
MAINSTEM	CACHE LA POUDRE RIV AB BOXELDER CRK NR TIMNATH, CO (CLABOXCO)	124.6	3.2	18.9	+15.7	1.0	Unaccounted +15.7 cfs gain over 1.0 mi. Likely cause: stale/missing return data at NORTH WELD CO WD ARTHUR D RETURN FLOW IM.
MAINSTEM	SOUTH FORK CACHE LA POUDRE BELOW JACKS GULCH (CLASRKCO)	163.3	40.2	24.8	-15.4	2.6	Unaccounted -15.4 cfs loss over 2.6 mi. Returns in this reach with stale data (ACWWA DONALDSON SURFACE RTN POINT IMPACT) — over-reporting elsewhere is also possible.
MAINSTEM	BOXELDER DITCH (BOXDITCO)	123.5	18.4	3.2	-15.2	4.2	Unaccounted -15.2 cfs loss over 4.2 mi. No structure clearly responsible — possible ungaged diversion, channel seepage / phreatophyte loss, or evapotranspiration.
MAINSTEM	CACHE LA POUDRE RIVER BELOW NEW CACHE (CLARIVCO)	130.9	45.3	58.8	+13.5	0.5	Unaccounted +13.5 cfs gain over 0.5 mi. No structure clearly responsible — possible ungaged return flow, baseflow from groundwater, or unmodeled tributary inflow.
MAINSTEM	BH EATON AUG RETURN (BHERTNCO)	135.8	10.8	1.1	-9.8	0.8	Unaccounted -9.8 cfs loss over 0.8 mi. No structure clearly responsible — possible ungaged diversion, channel seepage / phreatophyte loss, or evapotranspiration.
MAINSTEM	LARIMER COUNTY #2 @ 12 FT PARSHALL FLUME (LARNO2CO)	113.7	9.7	0.0	-9.7	1.2	Unaccounted -9.7 cfs loss over 1.2 mi. No structure clearly responsible — possible ungaged diversion, channel seepage / phreatophyte loss, or evapotranspiration.
MAINSTEM	LITTLE CACHE LA POUDRE DITCH (LTCDITCO)	113.8	9.3	0.0	-9.3	0.0	Unaccounted -9.3 cfs loss over 0.0 mi. No structure clearly responsible — possible ungaged diversion, channel seepage / phreatophyte loss, or evapotranspiration.
MAINSTEM	LARIMER COUNTY #2 @ 12 FT PARSHALL FLUME (LARNO2CO)	113.7	0.0	6.4	+6.4	0.0	Unaccounted +6.4 cfs gain over 0.0 mi. No structure clearly responsible — possible ungaged return flow, baseflow from groundwater, or unmodeled tributary inflow.
MAINSTEM	JONES DITCH (JONESDCO)	144.4	1.1	6.5	+5.5	8.6	Unaccounted +5.5 cfs gain over 8.6 mi. Likely cause: stale/missing return data at WHITNEY DITCH KADLUB RETURN, NEW CACHE JOHN LAW RETURN, WHITNEY D GREAT WESTERN RETURN.

Gage ⇅	Station ⇅	Avg cfs Aug 17–Aug 23 ⇅	% Hist Median ⇅	Rank ⇅	Δ1wk ⇅	Δ4wk ⇅	Yrs ⇅	Status ⇅
BOBGLNCO	BOBCREEK DITCH NEAR DEADMAN MTN., NEAR GLENDEVEY	0.0	0%	0	+0	+0	0.0	NO_DATA
CANAL3CO	CANAL # 3 NEAR GREELEY	43.9	83%	0	-6	-10	26.4	SHORT_RECORD
LARNO2CO	LARIMER COUNTY #2 @ 12 FT PARSHALL FLUME	0.0	0%	0	+0	+0	26.9	SHORT_RECORD
NOCALACO	N FK CACHE LA POUDRE R BLW HALLIGAN RES NR VA DALE	5.4	6%	0	-33	-41	28.4	SHORT_RECORD
CLAWASCO	CACHE LA POUDRE RIVER AT GREELEY WASTEWATER PLANT	41.8	74%	0	-15	+2	22.0	SHORT_RECORD
GREWASCO	GREELEY WASTEWATER PLANT EFFLUENT	1.0	8%	0	-0	-20	24.0	SHORT_RECORD
TAGDITCO	TAYLOR GILL DITCH	0.0	0%	0	-3	-8	10.7	SHORT_RECORD
OGIDITCO	OGILVY DITCH	49.5	72%	0	-3	+15	12.9	SHORT_RECORD
JAKDITCO	JACKSON DITCH	9.7	90%	0	-1	-4	10.8	SHORT_RECORD
NPRCANCO	NORTH POUDRE CANAL	3.8	5%	0	-35	-38	10.6	SHORT_RECORD
JONESDCO	JONES DITCH	6.5	72%	0	-1	-1	9.9	SHORT_RECORD
NSCDITCO	NEW SAND CREEK LATERAL DITCH	1.0	40%	0	+0	+0	5.9	SHORT_RECORD
BOXDITCO	BOXELDER DITCH	3.2	13%	0	-10	-15	5.8	SHORT_RECORD
CLANHACO	N FK CACHE LA POUDRE R ABV HALLIGAN RES	5.2	14%	0	-3	-2	5.7	SHORT_RECORD
CLASRKCO	SOUTH FORK CACHE LA POUDRE BELOW JACKS GULCH	24.8	34%	0	-5	-50	3.3	SHORT_RECORD
BHEATNCO	B H EATON DIVERSION	10.8	83%	1	-1	-2	10.1	SHORT_RECORD
FOSOUTCO	FOSSIL CREEK OUTLET	45.3	82%	11	-16	-76	10.0	SHORT_RECORD
LAWIRRCO	LARIMER AND WELD IRRIGATION COMPANY @ 30 FT PARSHALL FLUME	138.4	68%	13	+16	+49	27.4	SHORT_RECORD
CLANSECO	NORTH FORK CACHE LA POUDRE RIVER BELOW SEAMAN RESERVOIR	2.3	31%	13	-0	+0	21.8	SHORT_RECORD
PVLCANCO	PLEASANT VALLEY LAKE CNL	29.0	91%	29	-3	-7	10.6	SHORT_RECORD
LTCDITCO	LITTLE CACHE LA POUDRE DITCH	9.3	61%	31	+0	-8	10.6	SHORT_RECORD
ARTCANCO	ARTHUR/FT. COLLINS IRR CANAL	2.0	55%	34	-0	+0	10.7	SHORT_RECORD
HOROUTCO	HORSETOOTH RESERVOIR (OUTFLOW)	338.7	79%	35	+43	+154	25.2	SHORT_RECORD
NEWMERCO	NEW MERCER NEAR LAPORTE	6.4	85%	36	-0	-3	26.8	SHORT_RECORD
LAPLODCO	LA POUDRE PASS CREEK BELOW LONG DRAW RESERVOIR	74.7	80%	41	-21	-74	14.1	SHORT_RECORD
WOROUTCO	WORSTER RESERVOIR OUTLET	0.2	0%	50	-0	+0	0.0	SHORT_RECORD
WHITNYCO	WHITNEY DITCH DIVERSION	35.4	109%	70	+0	-1	10.0	SHORT_RECORD
LACDITCO	LARIMER COUNTY DITCH	239.0	124%	79	+28	+27	10.4	SHORT_RECORD
BHERTNCO	BH EATON AUG RETURN	1.1	0%	88	-1	-1	5.1	SHORT_RECORD
CENJNZCO	CCWCD JONES DITCH AUG RETURN	6.1	124%	100	-0	+1	8.1	SHORT_RECORD
JWCCHACO	JOE WRIGHT CREEK BELOW CHAMBERS RESERVOIR	76.5	119%	100	+8	-31	7.4	SHORT_RECORD
WHWRTNCO	WHITNEY DITCH WEST RETURN	2.9	126%	100	-0	-0	5.4	SHORT_RECORD
MUNCANCO	MUNROE CANAL	22.6	21%	0	-46	-67	64.9	OK
JOEBELCO	JOE WRIGHT CREEK BELOW JOE WRIGHT RESERVOIR, CO.	3.0	16%	0	-10	-35	48.5	OK
CLAIRRCO	NEW CACHE LA POUDRE CANAL NEAR TIMNATH	1.1	1%	0	-12	-90	31.0	OK
MICDCPCO	MICHIGAN DITCH AT CAMERON PASS	0.0	0%	0	+0	-5	96.9	OK
CLAFORCO	CACHE LA POUDRE RIVER AT FORT COLLINS, CO	18.4	38%	3	-19	-57	52.0	OK
GRNDRDCO	GRAND RIVER DITCH AT LA POUDRE PASS	5.4	34%	7	-2	-12	101.5	OK
CLAFTCCO	CACHE LA POUDRE AT CANYON MOUTH NEAR FORT COLLINS	157.6	63%	19	-28	-165	184.7	OK
HSCCLPCO	HANSEN SUPPLY CANAL TO CACHE LA POUDRE RIVER NEAR FORT COLLINS	309.9	74%	31	+45	+161	75.9	OK
CLANLICO	NORTH FORK CACHE LA POUDRE RIVER AT LIVERMORE, CO	4.8	80%	36	-1	-4	39.8	OK
CLABOXCO	CACHE LA POUDRE RIV AB BOXELDER CRK NR TIMNATH, CO	18.9	70%	39	-19	-45	47.3	OK
CLARIVCO	CACHE LA POUDRE RIVER BELOW NEW CACHE	58.8	100%	51	-24	-21	30.8	OK
CLAGRECO	CACHE LA POUDRE NEAR GREELEY	40.2	105%	52	-7	-2	135.8	OK