USGS Water-Year Summary for Site 01184490

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	Available Parameters
	00060 Discharge(Mean)
	00065 Gage height(Max.,Min.,Mean)

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Water year 2023: 2022-10-01 to 2023-09-30

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USGS Water-Year Summary 2023

01184490 BROAD BROOK AT BROAD BROOK, CT

LOCATION - Lat 41°54'50.03", long 72°32'58.92" referenced to North American Datum of 1983, Hartford County, CT, Hydrologic Unit 01080205, On left bank just upstream from bridge on State Rte. 191 (Mill Street) at Broad Brook, 0.5 mi upstream from mouth.

DRAINAGE AREA - 15.5 mi².

REVISIONS HISTORY - WSP 2101: 1962 (P). WDR CT-83-1: Drainage area.

SURFACE-WATER RECORDS

PERIOD OF RECORD - August 1961 to September 1976, May 1982 to current year.

GAGE - Water-stage recorder and crest-stage gage. Datum of gage is 46.21 ft. above National Geodetic Vertical Datum of 1929. Satellite telemetry at station.

REMARKS -

Flow regulated by reservoir and mill upstream.

WY2021-2023: Records fair except for periods of estimated discharge which are poor.
WY2014-2020: Records good except for periods of estimated discharges which are fair.

EXTREMES FOR PERIOD OF RECORD -
Minimum instantaneous discharge, 0.33 cfs on October 7, 2015.

WATER-QUALITY RECORDS

PERIOD OF RECORD - DISCRETE WATER QUALITY DATA

April 1997 to current year.

PERIOD OF DAILY RECORD - CONTINUOUS WATER QUALITY DATA

Continuous monitoring; Temperature, Dissolved Oxygen, pH, Specific Conductance, Turbidity, Chlorophyll RFU, February 2020 to April 2023.

INSTRUMENTATION - YSI EXO multiparameter sonde, February 2020 to April 2023, continuous data. Analite NEP 5000 Turbidity sensor, February 2020 to April 2023, continuous data.

EXTREMES FOR PERIOD OF DAILY RECORD -

--WATER TEMPERATURE: Maximum, 28.7°C August 9, 2022 ; minimum, -0.15°C Feb. 4, 2023.
--SPECIFIC CONDUCTANCE @25 °C: Maximum, 827 µS/cm January 17, 2022 ; minimum, 40 µS/cm August 19, 2021.
--pH: Maximum, 9.2 standard units, April 09, 2021; Minimum, 6.5 August 19, 2021.
--DISSOLVED OXYGEN: Maximum, 15.54 mg/l Feb. 4, 2023; minimum, 6.0 August 9, 2022.
--TURBIDITY: Maximum, 396 RFU Aug. 19 2021; minimum, 0.20 RFU Aug. 12, 2020.
--CHLOROPHYLL: Maximum, 99.5RFU Nov. 27, 2022; minimum, -0.1 RFU, Feb. 23, 2020.