USGS Water-Year Summary for Site 01104420

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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

01104420 CAMBRIDGE RES., UNNAMED TRIB 3, NR LEXINGTON, MA

LOCATION - Lat 42°25'11", long 71°15'29" referenced to North American Datum of 1927, Middlesex County, MA, Hydrologic Unit 01090001, on left bank, at culvert on State Highway 128, 1,700 feet upstream of Cambridge Reservoir, and 2.5 mi. southwest of Lexington.

DRAINAGE AREA - 0.73 mi².

SURFACE-WATER RECORDS

PERIOD OF RECORD - October 1997 to September 1998, November 2011 to current year.

GAGE - Data Collection Platform with telephone telemeter. Datum of gage is 179.20 ft above NAVD 1988, estimated from topographic map.

COOPERATION - City of Cambridge, Water Department.

REMARKS - Records fair except those for estimated daily discharges, which are poor.

WATER-QUALITY RECORDS

PERIOD OF DAILY RECORD - October 1997 to September 1998, November 2011 to current year.

INSTRUMENTATION - Specific conductance and water temperature water-quality monitor.

REMARKS -

2019 WATER-YEAR SUMMARY (min/max info):

WATER TEMPERATURE: Maximum instantaneous water temperature: 27.2 °C on Jul. 21, 2019; Minimum instantaneous water temperature: 0.1 °C on Feb. 25, 2019 and other days throughout winter.

SPECIFIC CONDUCTANCE: Maximum instantaneous specific conductance: 18,200 µS/cm on Mar. 10, 2019; Minimum instantaneous specific conductance: 28 µS/cm on Sept. 02, 2019.

2018 WATER-YEAR SUMMARY (min/max info):

WATER TEMPERATURE: Maximum instantaneous water temperature: 29.2 °C on Aug. 02, 2018; Minimum instantaneous water temperature: 0.1 °C on Jan. 13, 2018 and other days throughout winter.
SPECIFIC CONDUCTANCE: Maximum instantaneous specific conductance: 24,500 µS/cm on Dec. 23, 2017; Minimum instantaneous specific conductance: 32 µS/cm on Sept. 18, 2018.

2017 WATER-YEAR SUMMARY (min/max info):

WATER TEMPERATURE: Maximum instantaneous water temperature: 25.8 °C on Jun. 23, 2017; Minimum instantaneous water temperature: 0.2 °C on Dec. 30, 2016 and other days throughout winter.
SPECIFIC CONDUCTANCE: Maximum instantaneous specific conductance: 18,000 µS/cm on Feb. 07, 2017; Minimum instantaneous specific conductance: 31 µS/cm on Sept. 07, 2017.

2016 WATER-YEAR SUMMARY (min/max info):

WATER TEMPERATURE: Maximum instantaneous water temperature: 29.9 °C on July 26, 2016; Minimum instantaneous water temperature: 0.1 °C on Feb. 17, 2016. SPECIFIC CONDUCTANCE: Maximum instantaneous specific conductance: 12,200 µS/cm on Feb. 16, 2016; Minimum instantaneous specific conductance: 69 µS/cm on Aug. 22, 2016. Records for water temperature are excellent. Records for specific conductance are good, except for the following daily ranges: 2015/10/10, 2015/10/13, 2015/11/21 to 2015/11/23, 2015/11/30 to 2015/12/02, 2015/12/14 to 2015/12/15, 2015/12/17, 2015/12/23, 2015/12/30, 2016/01/01 to 2016/01/10, 2016/01/15, 2016/01/18 to 2016/01/30, 2016/02/04, 2016/02/07 to 2016/02/08, 2016/02/10 to 2016/02/15, 2016/02/21 to 2016/02/25, 2016/02/27 to 2016/03/14, 2016/03/19 to 2016/04/02, 2016/04/09, 2016/04/13 to 2016/05/02,2016/05/04 to 2016/05/05, 2016/05/07 to 2016/05/08, 2016/05/24, 2016/06/09 to 2016/06/20, 2016/06/22 to 2016/06/27 which are good; 2015/10/09, 2015/11/28, 2015/12/29, 2015/12/31, 2016/01/16, 2016/02/02 to 2016/02/03, 2016/02/05 to 2016/02/06, 2016/02/09, 2016/02/16 to 2016/02/20, 2016/04/03 to 2016/04/08, 2016/04/10 to 2016/04/12, 2016/05/06, 2016/05/30,2016/06/06, 2016/06/21, 2016/07/12 to 2016/07/13, and 2016/07/21 to 2016/07/22 which are fair; and 2015/10/01 to 2015/10/07, 2015/10/28 to 2015/10/29, 2015/11/20, 2016/01/31, 2016/02/01, 2016/06/05, 2016/06/07 to 2016/06/08, 2016/06/28 to 2016/07/05, 2016/07/14 to 2016/07/20 and 2016/07/23 to 2016/09/30 which are poor

2015 WATER-YEAR SUMMARY (min/max info): WATER TEMPERATURE: Maximum instantaneous water temperature: 25.4 °C on Aug. 21, 2015; Minimum instantaneous water temperature: 0.0 °C on Feb. 15, 2015. SPECIFIC CONDUCTANCE: Maximum instantaneous specific conductance: 8,350 µS/cm on Mar. 04, 2015; Minimum instantaneous specific conductance: 60 µS/cm on Sept. 30, 2015. Records for water temperature are excellent. Records for specific conductance are good, except for the following daily ranges 2014/10/18, 2014/12/11 to 2014/12/15, 2015/06/01 to 2015/06/04, 2015/06/09, 2015/06/15, 2015/06/22 to 2015/06/23, 2015/06/29 to 2015/06/30, 2015/07/02 to 2015/07/04, 2015/07/09, 2015/07/11 to 2015/07/17, 2015/07/19 to 2015/07/21, 2015/07/24 to 2015/07/26, 2015/07/28 to 2015/07/29, 2015/07/31 to 2015/08/03, 2015/08/07 to 2015/08/10, 2015/08/13 to 2015/08/14, 2015/08/19, 2015/10/09, and 2015/11/28 that are rated as fair; and 2014/12/16 to 2015/02/12, 2015/05/31, 2015/06/21, 2015/06/28, 2015/07/0, 2015/07/10, 2015/07/18, 2015/07/27, 2015/07/30, 2015/08/04 to 2015/08/06, 2015/08/10 to 2015/08/10, 2015/08/15 to 2015/08/18, 2015/08/20, and 2015/09/01 to 2015/09/30 that are rated as poor.

2014 WATER-YEAR SUMMARY (min/max info): WATER TEMPERATURE: Maximum instantaneous water temperature: 25.0 °C on Jul. 08, 2014; Minimum instantaneous water temperature: 0.1 °C on Dec. 30, 2013 and many other days throughout the winter. SPECIFIC CONDUCTANCE: Maximum instantaneous specific conductance: 16,800 µS/cm on Feb. 14, 2014; Minimum instantaneous specific conductance: 166 µS/cm on Nov. 27, 2013.

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 - Water temperature: maximum recorded, 29.9 °C on July 26, 2016; minimum, -0.3 °C on Jan. 23, 1998. Specific conductance: maximum recorded, 30,700 µS/cm on Feb. 08, 2013; minimum, 18 µS/cm on Sept. 22, 1998.