USGS Water-Year Summary for Site 01115187

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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

01115187 PONAGANSET RIVER NEAR SOUTH FOSTER, RI

LOCATION - Lat 41°49'07", long 71°42'20" referenced to North American Datum of 1927, Providence County, RI, Hydrologic Unit 01090004, on left bank 5 ft downstream from bridge on Rams Tail Road, 0.3 mi south of South Foster and 0.4 mi upstream from Barden Reservoir.

DRAINAGE AREA - 14.4 mi².

REVISIONS HISTORY - WDR MA-RI-03-01: Drainage area. WDR MA-RI-09, water years 1995-2005, annual peak discharges.

SURFACE-WATER RECORDS

PERIOD OF RECORD - Discharge: March 1994 to current year. Water-quality records: Water years, 2000 to 2006; February 2009 to current year.

GAGE - Water-stage recorder with telephone telemeter. Elevation of gage is 355 ft above National Geodetic Vertical Datum of 1929, from topographic map.

COOPERATION - Rhode Island Department of Environmental Management.

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

WATER-QUALITY RECORDS

PERIOD OF RECORD - Water-quality records: Water years, 2000 to 2006, 2009 to current year.

PERIOD OF DAILY RECORD - SPECIFIC CONDUCTANCE: February 2000 to May 2001, October 2001 to September 2006, February 2009 to current year. WATER TEMPERATURE: February 2000 to May 2001, October 2001 to September 2006, February 2009 to current year.

INSTRUMENTATION - Specific conductance and water temperature water-quality monitor February 2000 to September 2006, February 2009 to current year.

REMARKS -

EXTREMES FOR 2019 WATER-YEAR (min/max info): WATER TEMPERATURE: maximum instantaneous water temperature: 28.2 °C on July 21, 2019; minimum instantaneous water temperature: -0.1 °C on Nov. 23, 2018 and many other days throughout the winter. SPECIFIC CONDUCTANCE: maximum instantaneous specific conductance: 131 µS/cm on July 22, 2019; minimum instantaneous specific conductance: 50 µS/cm on Jan. 25, 2019. AIR TEMPERATURE: maximum instantaneous air temperature: 35.8°C on July 21, 2019; Minimum instantaneous air temperature: -19.1°C on Mar. 07, 2019. PRECIPITATION: maximum instantaneous precipitation in a 15-min period: 0.57 inches on May 20, 2019.

EXTREMES FOR 2018 WATER-YEAR (min/max info): WATER TEMPERATURE: Maximum instantaneous water temperature: 28.6 °C on Jul. 04, 2018; Minimum instantaneous water temperature: 0.0 °C on Dec. 13, 2017 and many other days throughout the winter. SPECIFIC CONDUCTANCE: Maximum instantaneous specific conductance: 147 µS/cm on Oct. 26, 2017; Minimum instantaneous specific conductance: 65 µS/cm on Jan. 13, 2018. AIR TEMPERATURE: Maximum instantaneous air temperature: 35.5°C on Jul. 01, 2017; Minimum instantaneous air temperature: -23.6°C on Jan. 07, 2018.PRECIPITATION: Maximum instantaneous precipitation in a 15-min period: 0.62 inches on Sept. 18, 2018.

EXTREMES FOR 2017 WATER-YEAR (min/max info): WATER TEMPERATURE: Maximum instantaneous water temperature: 26.2 °C on Jul. 2, 2017; Minimum instantaneous water temperature: 0.0 °C on Dec. 1, 2016 and many other days throughout the winter. SPECIFIC CONDUCTANCE: Maximum instantaneous specific conductance: 149 µS/cm on Oct. 4, 2016; Minimum instantaneous specific conductance: 63 µS/cm on Mar, 16, 2017. Records of water temperature are rated as excellent. Records for specific conductance are rated as excellent, except for the following daily periods: 2016/10/23, 2016/10/31, 11/09/2016 thru 11/11/2016, 2017/03/16 thru 2017/04/02, 2017/05/05 thru 2017/06/09, and 2017/08/02 which are good; and 2017/04/03 thru 2017/05/04 which are poor.

EXTREMES FOR 2016 WATER-YEAR (min/max info): WATER TEMPERATURE: Maximum instantaneous water temperature: 27.7 °C on Jul. 18, 2016; Minimum instantaneous water temperature: 0.0 °C on Jan. 05, 2016 and many other days throughout the winter. SPECIFIC CONDUCTANCE: Maximum instantaneous specific conductance: 175 µS/cm on Oct. 20, 2015; Minimum instantaneous specific conductance: 38 µS/cm on Jan. 21, 2016. Records of water temperature are rated as excellent. Records for specific conductance are rated as excellent, except for the following daily ranges: 2015/11/30 to 2015/12/03 and 2016/06/26 to 2016/07/14 which are good; and 10/01/2015 to 11/29/2015 which are poor.

EXTREMES FOR 2015 WATER-YEAR (min/max info): WATER TEMPERATURE: Maximum instantaneous water temperature: 17.4 °C on Oct. 17, 2014; Minimum instantaneous water temperature: 0.0 °C on Dec. 31, 2014 and many other days throughout the winter. SPECIFIC CONDUCTANCE: Maximum instantaneous specific conductance: 193 µS/cm on Sept. 11, 2015; Minimum instantaneous specific conductance: 78 µS/cm on Dec. 09, 2014. Records of water temperature are rated as excellent. Records for specific conductance are rated as excellent, except for the following daily ranges: 2015/02/08 to 2015/02/18 which are good; and 2015/02/19 to 2015/09/30 which are fair.

EXTREMES FOR 2014 WATER-YEAR (min/max info): WATER TEMPERATURE: Maximum instantaneous water temperature: 26.4 °C on Jul. 3, 2014; Minimum instantaneous water temperature: 0.0 °C on Nov. 24, 2013 and many other days throughout the winter. SPECIFIC CONDUCTANCE: Maximum instantaneous specific conductance: 166 µS/cm on Sept. 12, 2014; minimum instantaneous specific conductance: 58 µS/cm on Mar. 30, 2014.

EXTREMES FOR 2013 WATER-YEAR (min/max info): WATER TEMPERATURE: Maximum instantaneous water temperature: 29.2 °C on Jul. 19, 2013; minimum instantaneous water temperature: -0.1 °C on Dec. 30, 2012 and many other days throughout the winter. SPECIFIC CONDUCTANCE: Maximum instantaneous specific conductance: 119 µS/cm on Jul. 8, 2013; minimum instantaneous specific conductance: 46 µS/cm on Jun. 14, 2013.

EXTREMES FOR 2012 WATER-YEAR (min/max info): WATER TEMPERATURE: Maximum instantaneous water temperature: 27.1 °C on July 18, 2012; minimum instantaneous water temperature: -0.1 °C on Dec. 19, 2011 and many other days throughout the winter. Maximum instantaneous specific conductance: 113 µS/cm on Mar. 01, 2012; minimum instantaneous specific conductance: 42 µS/cm on Dec. 08, 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 RECORD - SPECIFIC CONDUCTANCE: Maximum recorded, 328 uS/cm, Feb. 6, 2004; minimum, 29 uS/cm, Mar. 30, 2010. WATER TEMPERATURE: Maximum recorded, 29.9 °C, Aug. 2, 2006; minimum, 0.0 °C or slightly less, during many days throughout the winter of the period of record.