The monitoring network within this area

Hydrionis holds 490 values from 2 gauges within it. Discharge is a property of a gauge and its reach, not of this drainage area, so this page reports the network and its records rather than a single figure.

Gauges

490

Values held

1905–2026

Record spans

Gauges within the Saluda huc8 subbasin

2 monitoring points, positioned as the publisher records them.

Flood peaks, as measured

This gauge's flood record, as measured. Unlike a daily mean it is the discharge at the moment the river was highest, which is the figure flood frequency analysis is built on.

Largest measured flow of each year at SALUDA RIVER AT CHAPPELLS, SC

The highest instantaneous discharge the publisher recorded in each year — a flood peak as measured, not a daily average of one. 1905–2025.

Show relevant events (1 event)Shading marks when something was recorded, not what caused the line.

Published by the gauge's own operator from its sub-daily record; Hydrionis stores the figure rather than recomputing it. A year the gauge did not cover produces no value rather than a low one, and the gaps are stated below the chart. A peak is a property of this gauge and its reach: a larger flood upstream or downstream of it is not in this series.

What the shaded periods are (1 event)

A shaded period marks when something was recorded, not what caused the shape of the line. Where the two coincide, they coincided.

Documented record — A documented event, compiled from cited sources after it happened. The dates are as good as the record, which for older events can mean the month rather than the day.

Event	Type	Period	Standing	Authority
Hurricane Katrina water and sanitation collapse	Flood	2005-08-29 – 2005-09-30	Documented record	Compiled record

Not shown on this chart

The 1976 drought — This event’s area does not contain this chart’s subject. Sharing a country is not sharing an event, so it is not drawn.
The 2022 drought — This event’s area does not contain this chart’s subject. Sharing a country is not sharing an event, so it is not drawn.
Yorkshire drought — This event’s area does not contain this chart’s subject. Sharing a country is not sharing an event, so it is not drawn.
Cantareira water crisis, São Paulo — This event’s area does not contain this chart’s subject. Sharing a country is not sharing an event, so it is not drawn.
Cape Town Day Zero — This event’s area does not contain this chart’s subject. Sharing a country is not sharing an event, so it is not drawn.
European drought — This event’s area does not contain this chart’s subject. Sharing a country is not sharing an event, so it is not drawn.

View the data behind this chart

Underlying data
Period	SALUDA RIVER AT CHAPPELLS, SC (m³/s)
1905	0
1906	0
1908	0
1909	0
1910	0
1912	0
1913	0
1915	0
1916	0
1917	0
1918	0
1919	0
1921	0
1922	0
1923	0
1924	0
1925	0
1926	0
1928	1,591
1929	1,719
1931	150
1932	476
1934	510
1936	1,399
1937	606
1939	374
1940	1,407
1941	210
1942	688
1943	626
1944	915
1945	172
1946	637
1947	229
1948	402
1950	150
1951	154
1952	903
1953	181
1954	179
1955	183
1956	351
1957	158
1959	153
1960	518
1961	493
1962	289
1963	688
1964	940
1965	464
1966	470
1967	306
1968	235
1969	742
1970	156
1971	561
1972	493
1973	583
1974	193
1975	801
1976	306
1978	219
1979	496
1980	731
1982	612
1983	224
1985	202
1987	377
1988	124
1989	225
1990	614
1992	181
1993	371
1994	416
1995	1,076
1996	552
1997	300
1998	614
1999	166
2000	157
2001	132
2002	124
2003	614
2004	422
2005	292
2007	402
2008	116
2009	182
2010	566
2011	126
2012	94.6
2013	388
2015	175
2017	251
2018	270
2020	762
2021	247
2023	413
2024	1,039
2025	394

About this series

Everything below is a property of the data rather than a rating of it. There is deliberately no single confidence score: how much a gap matters depends on what you are about to do with the series, and only you know that.

Source	United States Geological Survey — National Water Information System · US Government work — public domain
How the values came to exist	Measured
Period held	1905–2025
Completeness	82.6% of the periods in that span are held. Gaps are drawn as breaks and never interpolated.
Known gaps	21 separate periods inside 1905–2025 hold no value. They are drawn as breaks in the line and are never interpolated across.
Continuity	The record begins in 1905 and is not continuous from it: 121 years separate the first value from the last, and 83% of the years between them are held. The span is not the record.
Last read from the publisher	2026-08-31
Redistribution	Permitted by the upstream licences
Commercial reuse	Permitted by the upstream licences. No Hydrionis access tier can widen this.
Methodology	How this was produced

How much of the rain came back out

A discharge in cubic metres per second cannot be compared with anything: the larger number may only mean the larger catchment. Divided by the area draining to the gauge it becomes a depth of water over that land, which answers a question a reader already has — of the rain that fell here, how much came back out as river?

Water leaving the catchment above SALUDA RIVER AT CHAPPELLS, SC, as a depth

The year's flow spread over the land draining to this gauge, in millimetres — the same unit rainfall is measured in. 1927–2025.

Show relevant events (1 event)Shading marks when something was recorded, not what caused the line.

Computed by Hydrionis from the published annual mean flow and the catchment area the station's own publisher states. It is not a water balance: the difference between rainfall and runoff is not evaporation alone but also change in groundwater storage, water abstracted and taken elsewhere, and water imported by transfer schemes — which is why a catchment can yield more runoff than the rain that fell on it without anything being measured wrongly. A different area figure rescales every value here by the ratio between them.

What the shaded periods are (1 event)

A shaded period marks when something was recorded, not what caused the shape of the line. Where the two coincide, they coincided.

Documented record — A documented event, compiled from cited sources after it happened. The dates are as good as the record, which for older events can mean the month rather than the day.

Event	Type	Period	Standing	Authority
Hurricane Katrina water and sanitation collapse	Flood	2005-08-29 – 2005-09-30	Documented record	Compiled record

Not shown on this chart

The 1976 drought — This event’s area does not contain this chart’s subject. Sharing a country is not sharing an event, so it is not drawn.
The 2022 drought — This event’s area does not contain this chart’s subject. Sharing a country is not sharing an event, so it is not drawn.
Yorkshire drought — This event’s area does not contain this chart’s subject. Sharing a country is not sharing an event, so it is not drawn.
Cantareira water crisis, São Paulo — This event’s area does not contain this chart’s subject. Sharing a country is not sharing an event, so it is not drawn.
Cape Town Day Zero — This event’s area does not contain this chart’s subject. Sharing a country is not sharing an event, so it is not drawn.
European drought — This event’s area does not contain this chart’s subject. Sharing a country is not sharing an event, so it is not drawn.

View the data behind this chart

Underlying data
Period	SALUDA RIVER AT CHAPPELLS, SC (mm)
1927	349
1928	693
1929	1,019
1930	355
1931	355
1932	625
1933	434
1934	446
1935	425
1936	883
1937	670
1938	336
1939	413
1940	321
1941	276
1942	418
1943	516
1944	505
1945	390
1946	590
1947	467
1948	606
1949	705
1950	378
1951	310
1952	512
1953	408
1954	319
1955	271
1956	341
1957	425
1958	466
1959	412
1960	583
1961	569
1962	519
1963	467
1964	845
1965	550
1966	460
1967	449
1968	463
1969	563
1970	321
1971	569
1972	572
1973	687
1974	539
1975	746
1976	629
1977	500
1978	432
1979	657
1980	538
1981	225
1982	437
1983	520
1984	532
1985	343
1986	226
1987	341
1988	186
1989	396
1990	488
1991	466
1992	450
1993	504
1994	483
1995	582
1996	512
1997	472
1998	593
1999	243
2000	222
2001	204
2002	261
2003	611
2004	398
2005	468
2006	256
2007	246
2008	173
2009	377
2010	381
2011	224
2012	220
2013	583
2014	390
2015	501
2016	314
2017	239
2018	512
2019	502
2020	698
2021	417
2022	371
2023	409
2024	500
2025	326

About this series

Source	United States Geological Survey — National Water Information System · US Government work — public domain
How the values came to exist	Derived Computed by Hydrionis
Period held	1927–2025
Completeness	100.0% of the periods in that span are held.
Continuity	Continuous: every year from 1927 to 2025 is held.
Last read from the publisher	2026-08-24
Redistribution	Permitted by the upstream licences
Commercial reuse	Permitted by the upstream licences. No Hydrionis access tier can widen this.
Methodology	How this was produced

Every gauge Hydrionis holds within this area

Gauges within the Saluda and what each holds
Gauge	Measures	Values	Record
SALUDA RIVER AT CHAPPELLS, SC	burned area within 50 km, catchment area, annual maximum river flow, mean river flow	256	1905–2026
SALUDA RIVER NEAR COLUMBIA, SC	burned area within 50 km, catchment area, annual maximum river flow, mean river flow	234	1926–2026

How these gauges were attached to this water

Assigned by the publisher to a numbered basin Every gauge here is assigned to this drainage area by its own publisher, which issues the area an official code — 03050109. A drainage area is not a river: it contains the tributaries as well as the main channel, and a gauge in it may be on any of them.

What each gauge’s link to this water rests on
Gauge	Evidence	Established
SALUDA RIVER AT CHAPPELLS, SC	Stated by the publisher — USGS site service, huc_cd field — https://waterservices.usgs.gov/nwis/site/ ; named from the USGS Watershed Boundary Dataset 8-digit HU (Subbasin) layer — https://hydro.nationalmap.gov/arcgis/rest/services/wbd/MapServer/4	2026-08-26
SALUDA RIVER NEAR COLUMBIA, SC	Stated by the publisher — USGS site service, huc_cd field — https://waterservices.usgs.gov/nwis/site/ ; named from the USGS Watershed Boundary Dataset 8-digit HU (Subbasin) layer — https://hydro.nationalmap.gov/arcgis/rest/services/wbd/MapServer/4	2026-08-26

What this record holds

Hydrionis decides which waters get a page, and which of those are offered to search, from what is actually held rather than from how the page reads. Five signals are counted; this record has 3 of them, which makes it a full profile.

Information-gain signals held for this water body
Signal	Held	Counts
Gauges holding a real record	2	no
Years spanned	122	yes, 20 or more
Values held	490	no
Distinct measurements	4	yes, 2 or more
Publishers measuring it	2	yes, 2 or more
Official identifiers	1	recorded, not counted

Use this data

Machine-readable JSON /api/v1/observations/by-subject/gauge-usgs-02167000.json
How to cite this, and who you must credit
How these figures were produced
Request this at a different scale, format or geography

No bulk download is offered here, which is a licence position rather than a product one: at least one contributing publisher does not permit redistribution. The values can be read on the page, cited, and pointed to at source.

Attribution and citation

Suggested citation for Hydrionis

Hydrionis (2026), Saluda gauge records, accessed 2026-09-02, hydrionis.com/waters/united-states-saluda/

Cite Hydrionis where you rely on values Hydrionis computed, on the method that produced them, or on the compilation itself. The underlying measurements remain the publishers’ and their attribution requirements apply to you directly.

Recommended, not required. Hydrionis does not claim rights over unmodified public data it relayed, and doing arithmetic on somebody else’s measurements does not make them Hydrionis’s. Cite the version and the access date: the Saluda gauge records changes as publishers release and as methods are revised, and a citation without both cannot be checked later. Full guidance is on cite and reuse.

None of the contributing licences requires attribution. Crediting the publishers is still good practice and they are listed above.

Where these figures come from

MeasuredHigh confidence2025-05-14

Source: USGS — National Water Information System, USGS site 02167000, annual peak streamflow. Licence: Open.

Method: The instantaneous maximum discharge of each water year as published by USGS, dated to the day it occurred. One value per October-to-September water year; where the publisher lists both a systematic and a historic peak for a year, the larger is the annual maximum. Values the publisher marks as maximum daily averages are not held here, because they are not instantaneous peaks. Values marked as bounded rather than measured are held as censored observations carrying the bound. Cubic feet per second are converted to cubic metres per second and the publisher unit is recorded alongside.

Rating curves are extrapolated at extreme discharges, so the largest values in a peak series carry the largest measurement uncertainty. Data from the U.S. Geological Survey National Water Information System, a work of the United States government and therefore in the public domain.

Retrieved 31 August 2026.