The monitoring network within this area

Hydrionis holds 1,232 values from 5 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

1,232

Values held

1915–2026

Record spans

Gauges within the Millers River huc8 subbasin

5 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 MILLERS RIVER AT ERVING, MA

The highest instantaneous discharge the publisher recorded in each year — a flood peak as measured, not a daily average of one. 1915–2025.

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	MILLERS RIVER AT ERVING, MA (m³/s)
1915	150
1916	108
1917	136
1918	87.5
1919	107
1920	170
1921	150
1922	137
1923	143
1924	149
1925	110
1926	87.5
1927	112
1929	112
1930	52.1
1931	85.5
1932	136
1933	170
1934	139
1935	125
1936	558
1938	821
1940	198
1941	52.4
1942	135
1943	73.1
1944	138
1945	96.6
1946	115
1947	72.2
1948	161
1949	72.8
1950	73.6
1951	114
1952	110
1953	116
1954	73.3
1955	89.8
1956	129
1957	56.4
1958	92.9
1959	139
1960	142
1961	71.4
1962	120
1963	121
1964	70.8
1965	39.4
1966	75.3
1967	95.1
1968	130
1969	101
1970	115
1971	80.7
1972	114
1973	119
1975	136
1977	160
1978	126
1979	204
1981	87.8
1982	111
1983	97.4
1984	193
1985	66.8
1986	139
1987	138
1988	66.0
1989	81.6
1991	104
1993	107
1994	101
1995	65.4
1996	152
1998	121
1999	163
2000	81.0
2001	128
2002	62.6
2003	106
2005	114
2007	112
2008	127
2010	112
2011	156
2013	117
2014	107
2016	84.7
2017	102
2018	111
2019	112
2021	167
2022	76.7
2023	117
2024	97.7
2025	131

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	1915–2025
Completeness	86.5% of the periods in that span are held. Gaps are drawn as breaks and never interpolated.
Known gaps	15 separate periods inside 1915–2025 hold no value. They are drawn as breaks in the line and are never interpolated across.
Continuity	The record begins in 1915 and is not continuous from it: 111 years separate the first value from the last, and 86% of the years between them are held. The span is not the record.
Last read from the publisher	2026-10-01
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 MILLERS RIVER AT ERVING, MA, as a depth

The year's flow spread over the land draining to this gauge, in millimetres — the same unit rainfall is measured in. 1916–2025.

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	MILLERS RIVER AT ERVING, MA (mm)
1916	714
1917	578
1918	513
1919	585
1920	820
1921	615
1922	762
1923	603
1924	506
1925	488
1926	447
1927	654
1928	699
1929	546
1930	278
1931	416
1932	518
1933	645
1934	675
1935	530
1936	731
1937	700
1938	974
1939	473
1940	603
1941	297
1942	529
1943	589
1944	481
1945	737
1946	540
1947	518
1948	572
1949	403
1950	520
1951	789
1952	608
1953	750
1954	655
1955	689
1956	589
1957	410
1958	556
1959	615
1960	751
1961	502
1962	475
1963	364
1964	363
1965	200
1966	303
1967	576
1968	537
1969	631
1970	587
1971	484
1972	795
1973	846
1974	616
1975	835
1976	634
1977	682
1978	503
1979	920
1980	414
1981	532
1982	710
1983	807
1984	849
1985	358
1986	653
1987	591
1988	482
1989	635
1990	657
1991	708
1992	461
1993	539
1994	601
1995	553
1996	1,020
1997	569
1998	625
1999	559
2000	665
2001	477
2002	378
2003	742
2004	618
2005	972
2006	757
2007	531
2008	981
2009	742
2010	633
2011	979
2012	419
2013	598
2014	803
2015	527
2016	401
2017	664
2018	1,058
2019	694
2020	568
2021	781
2022	570
2023	834
2024	675
2025	536

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	1916–2025
Completeness	100.0% of the periods in that span are held.
Continuity	Continuous: every year from 1916 to 2025 is held.
Inputs last read	2026-10-01 · when the records this was computed from were last read from their publishers
Calculation date	2026-08-24 · when the calculation method was last versioned, not a reading of any publisher
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 Millers River and what each holds
Gauge	Measures	Values	Record
MILLERS RIVER AT ERVING, MA	burned area within 50 km, catchment area, annual maximum river flow, mean river flow, mean river flow, water year	368	1915–2026
MOSS BROOK AT WENDELL DEPOT, MA	burned area within 50 km, catchment area, annual maximum river flow, mean river flow, mean river flow, water year	234	1916–2026
MILLERS RIVER NEAR WINCHENDON, MA	catchment area, mean river flow, mean river flow, water year	219	1916–2026
PRIEST BROOK NEAR WINCHENDON, MA	catchment area, mean river flow, mean river flow, water year	212	1916–2026
TARBELL BROOK NEAR WINCHENDON, MA	catchment area, annual maximum river flow, mean river flow, mean river flow, water year	199	1916–2026

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 — 01080202. 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
MILLERS RIVER AT ERVING, MA	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	2026-10-02
MOSS BROOK AT WENDELL DEPOT, MA	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	2026-10-02
MILLERS RIVER NEAR WINCHENDON, MA	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	2026-10-02
PRIEST BROOK NEAR WINCHENDON, MA	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	2026-10-02
TARBELL BROOK NEAR WINCHENDON, MA	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	2026-10-02

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 5 of them, which makes it a full profile.

Information-gain signals held for this water body
Signal	Held	Counts
Gauges holding a real record	5	yes, 3 or more
Years spanned	112	yes, 20 or more
Values held	1,232	yes, 1000 or more
Distinct measurements	5	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-01166500.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), Millers River gauge records, accessed 2026-10-05, hydrionis.com/waters/united-states-millers-river/

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 Millers River 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 confidence2025-05-10

Source: USGS — National Water Information System, USGS site 01166500, 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 1 October 2026.