USGS Water-Year Summary for Site 01104453

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	Available Parameters
	00010 Temperature, water(Mean)
	00060 Discharge(Mean)
	00095 Specific cond at 25C(Mean)

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Water year 2024: 2024-10-01 to 2025-09-30

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USGS Water-Year Summary 2024

01104453 STONY BROOK UNNAMED TRIBUTARY 2 NEAR WESTON STATION, MA

LOCATION - Lat 42°22'17", long 71°16'31" referenced to North American Datum of 1983, Middlesex County, MA, Hydrologic Unit 01090001, on left bank, 750 upstream from Stony Brook, 1,500 ft north of Rt 20, and 0.7 mi southeast of Kendall Green.

DRAINAGE AREA - 2.23 mi².

SURFACE-WATER RECORDS

PERIOD OF RECORD - June 2006 to October 2008 (discontinued). Restarted July 2010 to October 2015 (discontinued).

GAGE - Water-stage recorder. Elevation of gage is 100 ft above National Geodetic Vertical Datum of 1929, from topographic map.

COOPERATION - Cambridge Water Department.

REMARKS - Records fair except those for estimated daily discharge, which are poor. Flows are affected by occasional upstream regulation.

WATER-QUALITY RECORDS

PERIOD OF RECORD - Water temperature: June 2006 to October 2008, and July 2010 to present. Specific conductance: July 2010 to present.

INSTRUMENTATION - Specific conductance and water-temperature sensor.

REMARKS -

EXTREMES FOR 2018 WATER-YEAR (min/max info): WATER TEMPERATURE: Maximum instantaneous water temperature: 24.9 °C on Aug. 11, 2018; Minimum instantaneous water temperature: 0.2 °C on Dec. 14, 2017.
SPECIFIC CONDUCTANCE: Maximum instantaneous specific conductance: 1,180 µS/cm on Jan. 10, 2018 (new extreme for period of record); Minimum instantaneous specific conductance: 488 µS/cm on Apr. 27, 2018.

EXTREMES FOR 2017 WATER-YEAR (min/max info): WATER TEMPERATURE: Maximum instantaneous water temperature: 23.4 °C on May 19, 2017; Minimum instantaneous water temperature: -0.2 °C on Mar. 05, 2017.
SPECIFIC CONDUCTANCE: Maximum instantaneous specific conductance: 1030 µS/cm on Jan. 03, 2017; Minimum instantaneous specific conductance: 579 µS/cm on Apr. 18, 2017.

EXTREMES FOR 2016 WATER YEAR: WATER TEMPERATURE: Maximum instantaneous water temperature: 28.4 °C on Jul. 18, 2016; Minimum instantaneous water temperature: 1.3 °C on Jan. 03, 2016. SPECIFIC CONDUCTANCE: Maximum instantaneous specific conductance: 1,080 µS/cm on Jun. 08, 2016; Minimum instantaneous specific conductance: 559 µS/cm on Oct. 05, 2015. Water temperature records are rated as excellent. Specific conductance records are rated as excellent, except for the following daily ranges: 2015/11/03 to 2015/12/09, 2016/01/05 to 2016/01/11, 2016/01/13 to 2016/01/21, 2016/01/27, 2016/02/02 to 2016/02/08, 2016/04/26 to 2016/04/27, 2016/06/07 to 2016/06/08, and 2016/07/12 to 2016/07/21 are rated good; 2016/01/28 to 2016/02/01, 2016/06/06, and 2016/06/09 are rated fair; and 2016/01/22 to 2016/01/26, 2016/05/10, 2016/06/03 to 2016/06/05, and 2016/06/10 to 2016/06/15 are rated poor.

EXTREMES FOR 2015 WATER YEAR: SPECIFIC CONDUCTANCE: Maximum recorded, 1,040 uS/cm, Mar. 14, 2015; minimum, 433 uS/cm, Dec. 11, 2014. WATER TEMPERATURE: Maximum recorded, 28.0 °C, Aug. 26, 2015; minimum, 0.6 °C, Dec. 8, 2014. Water temperature records are rated as good. Specific conductance records are rated as excellent, except for the following daily ranges: 2014/12/26 to 2015/02/11, 2015/04/04 to 2015/04/05, 2015/05/09 to 2015/06/18, and 2015/07/23 to 2015/08/24 which are rated as good; 2015/04/06 to 2015/04/07 which are rated as fair; and 2014/10/15 to 2014/10/22, 2015/04/03, 2015/04/08 to 2015/04/16, and 2015/09/30 which are rated as poor. Missing periods of record are not estimated.

EXTREMES FOR 2014 WATER YEAR: WATER TEMPERATURE: Maximum instantaneous water temperature: 25.2 °C on Jul. 16, 2014; Minimum instantaneous water temperature: -0.1 °C on Nov. 24, 2013. SPECIFIC CONDUCTANCE: Maximum instantaneous specific conductance: 1,090 µS/cm on Mar. 05, 2014 (new extreme for period of record); Minimum instantaneous specific conductance: 353 µS/cm on Mar. 31, 2014.

EXTREMES FOR 2013 WATER YEAR: WATER TEMPERATURE: Maximum instantaneous water temperature: 25.3 °C on Jul. 23, 2013 and Aug. 20, 2013; Minimum instantaneous water temperature: 1.4 °C on Mar. 09, 2013. SPECIFIC CONDUCTANCE: Maximum instantaneous specific conductance: 800 µS/cm on Sept. 03, 2013; Minimum instantaneous specific conductance: 284 µS/cm on Jun. 17, 2013 (new extreme for period of record).

EXTREMES FOR 2012 WATER YEAR: WATER TEMPERATURE: Maximum instantaneous water temperature: 29.2 °C on Jul. 25, 2012; Minimum instantaneous water temperature: 0.2 °C on Jan. 04, 2012 and Jan. 15, 2012. SPECIFIC CONDUCTANCE: Maximum instantaneous specific conductance: 767 µS/cm on Mar. 08, 2012; Minimum instantaneous specific conductance: 332 µS/cm on Dec. 10, 2011.

Record quality is described in the following publication: Wagner, R.J., Boulger, R.W., Jr., Oblinger, C.J., and Smith, B.A., 2006, Guidelines and standard procedures for continuous water-quality monitors—Station operation, record computation, and data reporting: U.S. Geological Survey Techniques and Methods 1–D3, 51 p. + 8 attachments; accessed April 10, 2006, at http://pubs.water.usgs.gov/tm1d3

EXTREMES FOR PERIOD OF DAILY RECORD - SPECIFIC CONDUCTANCE: Maximum recorded, 1,180 µS/cm, Jan. 10, 2018; minimum, 284 uS/cm, June 17, 2013. WATER TEMPERATURE: Maximum recorded, 31.7 °C, July 18, 2006; minimum recorded, -0.4 °C, Jan. 17, 2007 (rated as fair).