Water-quality conditions, and constituent loads and yields in the Cambridge drinking-water source area, Massachusetts, water years 2005–07

Smith, Kirk P.

doi:10.3133/sir20135039

Cited by 5 publications

(17 citation statements)

References 37 publications

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“…The USGS, in cooperation with the CWD, continues to operate and maintain a monitoring network in the drinkingwater source area (table 1). Streamflow, water-quality, and meteorological data from this network are available to the public through the USGS National Water Information System (NWIS; https://waterdata.usgs.gov/nwis/ma/rt) and in various reports (Socolow and others, 1999(Socolow and others, , 2000(Socolow and others, , 2001(Socolow and others, , 2002(Socolow and others, , 2003(Socolow and others, , 2004Smith, , 2007Smith, , 2008Smith, , 2011Smith, , 2013U.S. Geological Survey, 2009).…”

Section: Previous Investigationsmentioning

confidence: 99%

“…They also identified sources of various constituents, including calcium (Ca), Cl, Na, sulfate (SO 4 ), total nitrogen, and TP, in the drinking-water source area and outlined a source-water protection program for the CWD. Smith (2013) further examined loads and yields of constituents in deicing compounds, total nutrients, selected pesticides, and caffeine for water years 2005-7. The USGS, in cooperation with the CWD, continues to operate and maintain a monitoring network in the drinkingwater source area (table 1).…”

Section: Previous Investigationsmentioning

confidence: 99%

“…Specific conductance measurements, which typically are used to approximate concentrations of dissolved major ions (Hem, 1982(Hem, , 1992Miller and others, 1988;Church and others, 1996;Granato and Smith, 1999;Smith and Granato, 2010;Smith and Breault, 2011;Smith, 2013), are used in this study to estimate concentrations of dissolved Ca, Cl, Mg, Na, and SO 4 in tributary water and to estimate concentrations and loads of these constituents in the drinkingwater source area. Continuous records of specific conductance are available for all USGS streamgages in the drinking-water source area and are available for nearly every day of the study, representing a variety of hydrologic conditions (base flow, rain, mixed precipitation, and snowmelt runoff events).…”

Section: Concentrations Of Major Ions Estimated From Specific-conductmentioning

confidence: 99%

“…1). These stations were identified by Waldron and Bent (2001), Smith (2013), and the CWD as draining areas that are potentially important sources of deicing compounds and TP. Monitoring data can be used to characterize current surface-water-quality conditions; to establish a baseline for future comparisons of surface-water quality; and if sufficient data are available, to describe trends in surface-water quality.…”

Section: Introductionmentioning

confidence: 99%

“…In 1997, the U.S. Geological Survey (USGS), in cooperation with the CWD, began operation of continuous waterquality monitoring stations (streamflow, water temperature, and specific conductance; hereafter referred to as stations) at various locations in the drinking-water source area (Socolow and others, 1999(Socolow and others, , 2000(Socolow and others, , 2001(Socolow and others, , 2002(Socolow and others, , 2003(Socolow and others, , 2004Smith, , 2007Smith, , 2008Smith, , 2011Smith, , 2013U.S. Geological Survey, 2009).…”

Section: Introductionmentioning

confidence: 99%

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Loads and yields of deicing compounds and total phosphorus in the Cambridge drinking-water source area, Massachusetts, water years 2009–15

Smith¹

2017

Scientific Investigations Report

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Section: Previous Investigationsmentioning

confidence: 99%

Section: Previous Investigationsmentioning

confidence: 99%

Section: Concentrations Of Major Ions Estimated From Specific-conductmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Loads and yields of deicing compounds and total phosphorus in the Cambridge drinking-water source area, Massachusetts, water years 2009–15

Smith¹

2017

Scientific Investigations Report

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Water quality in the Cambridge, Massachusetts, drinking-water source area, 2005-8

Smith¹,

Waldron²

2015

Fact Sheet

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and in published reports (for example, Smith, 2005). From 2004 through 2008, the USGS and CWD characterized water quality during base-flow (conditions generally representing only groundwater discharge) and storm-runoff conditions in four tributaries to the Cambridge and Stony Brook Reservoirs and in the main stem of Stony Brook, the primary source of inflow to the Stony Brook Reservoir (Smith, 2013). Currently (2015), the USGS, in cooperation with the CWD, operates water-quality monitoring stations on every major tributary and on the three reservoirs in the drinking-water source area. The City of Cambridge Drinking-Water Supply SystemThe CWD supplies approximately 15 million gallons per day of drinking water to more than 100,000 customers. The CWD obtains raw water from a serial system of three primary storage reservoirs-Cambridge Reservoir (also known as the Hobbs Brook Reservoir), Stony Brook Reservoir, and Fresh Pond Reservoir-in parts of Cambridge, Lexington, Lincoln, Waltham, and Weston, Mass. (fig. 1). These reservoirs receive inflow from a source area of 23.7 square miles. The Cambridge drinking-water source area contains major transportation corridors (Interstate 95, State Routes 2, 2A, 20, and 117) as well as large impervious areas of industrial, commercial, and residential land use ( fig. 2). Only about 5 percent of this land is owned by Cambridge. The watershed for the Cambridge Reservoir includes Hobbs Brook and three unnamed tributaries that AbstractDuring 2005-8, the U.S. Geological Survey, in cooperation with the Cambridge, Massachusetts, Water Department, measured concentrations of sodium and chloride, plant nutrients, commonly used pesticides, and caffeine in base-flow and stormwater samples collected from 11 tributaries in the Cambridge drinking-water source area. These data were used to characterize current water-quality conditions, to establish a baseline for future comparisons, and to describe trends in surface-water quality. The data also were used to assess the effects of watershed characteristics on surface-water quality and to inform future watershed management.

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Methods for evaluating potential sources of chloride in surface waters and groundwaters of the conterminous United States

Granato¹,

DeSimone²,

Barbaro³

et al. 2015

Open-File Report

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vii 18. Graph showing range of chloride concentrations estimated from specificconductance values measured at 1-minute intervals in highway runoff during runoff events with one or more estimated values that exceed the 230-milligramsper-liter criterion continuous concentration for chloride in receiving waters at U.S. Geological Survey monitoring station 423027071291301 along State Route 2 in Littleton, Massachusetts, during the period from

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Water-quality conditions, and constituent loads and yields in the Cambridge drinking-water source area, Massachusetts, water years 2005–07

Cited by 5 publications

References 37 publications

Loads and yields of deicing compounds and total phosphorus in the Cambridge drinking-water source area, Massachusetts, water years 2009–15

Loads and yields of deicing compounds and total phosphorus in the Cambridge drinking-water source area, Massachusetts, water years 2009–15

Water quality in the Cambridge, Massachusetts, drinking-water source area, 2005-8

Methods for evaluating potential sources of chloride in surface waters and groundwaters of the conterminous United States

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