Quality of surface water in Missouri, water year 2014

Abstract

The U.S. Geological Survey, in cooperation with the Missouri Department of Natural Resources, designed and operates a series of monitoring stations on streams and springs throughout Missouri known as the Ambient Water-Quality Monitoring Network. During the 2014 water year (October 1, 2013, through September 30, 2014), data were collected at 74 stations-72 Ambient Water-Quality Monitoring Network stations and 2 U.S. Geological Survey National Stream Quality Assessment Network stations. Dissolved oxygen, specific conductance, water temperature, suspended solids, suspended sediment, Escherichia coli bacteria, fecal coliform bacteria, dissolved nitrate plus nitrite as nitrogen, total phosphorus, dissolved and total recoverable lead and zinc, and select pesticide compound summaries are presented for 71 of these stations. The stations primarily have been classified into groups corresponding to the physiography of the State, primary land use, or unique station types. In addition, a summary of hydrologic conditions in the State including peak discharges, monthly mean discharges, and 7-day low flow is presented.

Quality of surface water in Missouri, water year 2015

“…The most frequently detected pesticides were atrazine, CIAT, metolachlor, prometon, simazine and metribuzin. Concentrations of the herbicide alachlor, a commonly detected herbicide in 2008-2014(Otero-Benitez and Davis, 2009a, 2009bBarr, 2010Barr, , 2011Barr, , 2013Barr, , 2014Barr, , 2015Barr and Schneider, 2014) was not detected at levels larger than the LRL in samples collected in 2015. The concentrations for all pesticide compounds analyzed for all stations were less than 1.00 μg/L except atrazine and metolachlor.…”

“…The annual summary of select constituents provides MDNR with current information to assess the quality of surface water within the State and ensure the objectives of the AWQMN are being met. This report is one in a series of annual summaries Davis, 2009a, 2009b;Barr, 2010Barr, , 2011Barr, , 2013Barr, , 2014Barr, , 2015Barr and Schneider, 2014). Data on the physical characteristics and water-quality constituents in samples collected at 71 surface-water stations are presented in figures and tables.…”

Quality of surface water in Missouri, water year 2018

“…The annual summary of data for selected constituents provides the MDNR with current information to assess the quality of surface water within the State. This report is one in a series of annual summaries Davis, 2009a, 2009b;Barr, , 2013Barr, , 2014Barr, , 2015Barr and Schneider, 2014;Barr and Heimann, 2016;Bartels, 2018, 2019). Data on the physical characteristics and water-quality constituents in samples collected during the 2018 water year are presented in figures and tables for 76 surface-water stations located throughout the State.…”

Quality of surface water in Missouri, Water Year 2016

“…Methods used by the USGS for collecting and processing representative samples for nutrients, primary chemical constituents, trace elements, suspended solids, suspended sediment, and pesticide analyses are presented in detail in U.S. Geological Survey (2006a), Guy (1969), and Wilde and others (2004). All chemical analyses were done by the USGS National Water Quality Laboratory (NWQL) in Lakewood, Colorado, according to procedures described in Garbarino and others (2006), Fishman (1993), Patton and Kryskalla (2011), Patton and Truitt (1992), others (2001 and2015), and Zaugg and others (1995). Suspended-sediment concentrations were computed according to procedures described in Guy (1969).…”

“…The annual summary of select constituents provides MDNR with current information to assess the quality of surface water within the State and ensure the objectives of the AWQMN are being met. This report is one in a series of annual summaries Davis, 2009a, 2009b;Barr, 2010Barr, , 2013Barr, , 2015Barr and Schneider, 2014;Barr and Heimann, 2016). Data on the physical characteristics and water-quality constituents in samples collected during the 2016 water year are presented in figures and tables for 71 surface-water stations-69 AWQMN stations and 2 NASQAN stations among which are 4 stations with suspended-sediment data collected in cooperation with the U.S. Army Corps of Engineers.…”