USGS Water-Year Summary for Site 01104455

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	Available Parameters
	00010 Temperature, water(Max.,Min.,Mean)
	00060 Discharge(Mean)
	00095 Specific cond at 25C(Max.,Min.,Mean)
	63680 Turbidity, Form Neph(Min.,Max.,Mean)

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

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USGS Water-Year Summary 2024

01104455 STONY BROOK, UNNAMED TRIBUTARY 1, NEAR WALTHAM, MA

LOCATION - Lat 42°22'21", long 71°16'15" referenced to North American Datum of 1927, Middlesex County, MA, Hydrologic Unit 01090001, 20 ft downstream of culvert on ramp from southbound lane of State Highway 128 to State Highway 20, 800 ft upstream from mouth, and 1.8 mi west of Waltham.

DRAINAGE AREA - 0.48 mi².

SURFACE-WATER RECORDS

PERIOD OF RECORD - October 1997 to September 1998; October 2000 to current year.

GAGE - Data Collection Platform with telephone telemeter. Datum of gage is 84.20 ft above NAVD 1988, estimated from topographic map. Datum of gage previously reported as 85 ft above NGVD 1929, estimated from topographic map.

COOPERATION - Cambridge Water Department.

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

WATER-QUALITY RECORDS

PERIOD OF DAILY RECORD - SPECIFIC CONDUCTANCE: October 1997 to September 1998, October 2000 to current year. WATER TEMPERATURE: October 1997 to September 1998, October 2000 to current year. TURBIDITY: April 2007 to current year.

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

REMARKS -

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

WATER TEMPERATURE: Maximum instantaneous water temperature: 27.5 °C on July 06, 2019; Minimum instantaneous water temperature: 1.8 °C on Feb. 13, 2019.
SPECIFIC CONDUCTANCE: Maximum instantaneous specific conductance: 16,100 µS/cm on Jan. 19, 2019; Minimum instantaneous specific conductance: 22 µS/cm on Sept. 02, 2019.
TURBIDITY: Maximum instantaneous turbidity: 914 NTU on Nov. 02, 2018; minimum instantaneous turbidity: 0.0 NTU (rated as poor) June 03, 2019 and other days.

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

WATER TEMPERATURE: Maximum instantaneous water temperature: 28.5 °C on Aug. 03, 2018; Minimum instantaneous water temperature: 2.0 °C on Jan. 23, 2018 and others.
SPECIFIC CONDUCTANCE: Maximum instantaneous specific conductance: 30,400 µS/cm on Dec. 23, 2017; Minimum instantaneous specific conductance: 24 µS/cm on Sept. 18, 2018.
TURBIDITY: Maximum instantaneous turbidity: 1670 NTU on March 02, 2018; minimum instantaneous turbidity: 0.0 NTU (rated as poor) Jul. 17, 2018 and many other days in the water year.

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

WATER TEMPERATURE: Maximum instantaneous water temperature: 26.8 °C on June 23, 2017; Minimum instantaneous water temperature: 1.8 °C on Jan. 24, 2017 and others.
SPECIFIC CONDUCTANCE: Maximum instantaneous specific conductance: 24100 µS/cm on Dec. 12, 2016; Minimum instantaneous specific conductance: 27 µS/cm on Oct. 10, 2016.
TURBIDITY: Maximum instantaneous turbidity: 1140 FNU on Feb. 25, 2017; minimum instantaneous turbidity: 0.0 FNU on many days in the water year.

2016 WATER-YEAR SUMMARY (min/max info): WATER TEMPERATURE: Maximum instantaneous water temperature: 27.6 °C on Jul. 27, 2016; Minimum instantaneous water temperature: 2.8 °C on Dec. 29, 2015. SPECIFIC CONDUCTANCE: Maximum instantaneous specific conductance: 27,600 µS/cm on Feb. 16, 2016; Minimum instantaneous specific conductance: 35 µS/cm on Nov. 20, 2015. TURBIDITY: Maximum instantaneous turbidity: 880 NTU on Feb. 03, 2016 and Aug. 13, 2016; minimum instantaneous turbidity: 0.3 NTU on many days in the water year. Records of water temperature are excellent. Records of specific conductance records are rated excellent, except for the following daily ranges: 2016/05/02, 2016/05/30, 2016/06/07, 2016/07/16, 2016/08/02, 2016/08/06, 2016/09/04 to 2016/09/09, and 2016/09/14 which are good; 2016/07/01 which is fair; and 2015/10/01 to 2015/10/06 and 2016/06/05 which are poor. Records of turbidity are rated good, except for the following daily ranges: 2015/11/22 to 2015/12/05, 2016/08/19, 2016/08/21 to 2016/08/22, 2016/09/01, 2016/09/12 to 2016/09/14 which are fair; and 2015/12/06 to 2015/12/08, 2016/08/25 to 2016/08/31, 2016/09/15 to 2016/09/23 which are poor.

2015 WATER-YEAR SUMMARY (min/max info): WATER TEMPERATURE: Maximum instantaneous water temperature: 26.4 °C on Aug. 19 and 20, 2015 and Sept. 09, 2015; Minimum instantaneous water temperature: 2.3 °C on Jan. 04, 2015. SPECIFIC CONDUCTANCE: Maximum instantaneous specific conductance: 21,300 µS/cm on Mar. 2, 2015; Minimum instantaneous specific conductance: 20 µS/cm on Oct. 23, 2014. TURBIDITY: Maximum instantaneous turbidity: 1,550 NTU on Nov. 06, 2014; minimum instantaneous turbidity: 0.3 NTU on many days in the water year. Records of water temperature are excellent. Records of specific conductance records are rated excellent, except for the following daily ranges: 2014/10/01 to 2014/10/05, 2015/03/02, and 2015/07/04 to 2015/09/11 which are rated good; 2015/09/12 which is rated fair; and 2015/09/13 to 2015/09/14, and 2015/09/30 which are rated poor. Records of turbidity are rated good, except for the following daily ranges: 2014/10/22 to 2014/10/27, 2014/12/30, 2015/01/03 to 2015/01/05, 2015/01/14 to 2015/01/15, 2015/01/17 2015/01/29, 2015/04/08 to 2015/04/13, 2015/04/20 to 2015/04/22, 2015/05/04 to 2015/05/05, 2015/05/07, and 2015/06/21 which are rated fair; and 2014/10/28 to 2014/12/11, 2015/01/06 to 2015/01/13, 2015/01/16, 2015/01/18 to 2015/01/28, 2015/01/30 to 2015/02/19, 2015/02/21 to 2015/02/25, 2015/02/27 to 2015/03/09,2015/04/27 to 2015/04/28, 2015/05/02 to 2015/05/03, 2015/05/09 to 2015/05/13, and 2015/05/21 to 2015/06/19 which are poor. Missing records are not estimated.

EXTREMES FOR PERIOD OF DAILY RECORD - SPECIFIC CONDUCTANCE: Maximum recorded, 98,500 uS/cm, Dec. 14, 2007; minimum, 13 uS/cm, Dec. 24, 2001. WATER TEMPERATURE: Maximum recorded, 28.5 °C, Aug. 03, 2018; minimum, 0.1 °C, Jan. 13, 2002. TURBIDITY: Maximum recorded, 3,030 NTU, June 4, 2007; minimum, 0.3 NTU, many days during water years 2007 and 2010.