Water-Quality Data Characterizing the San Antonio Segment of the Edwards Aquifer With an Emphasis on Processes Influencing Nutrient and Pesticide Concentrations and Factors Affecting Aquifer Vulnerability, 2010-2016

This data release documents water-quality data collected from April 2010 through December 2016 by the U.S. Geological Survey in cooperation with the San Antonio Water System from across the San Antonio segment of the Edwards aquifer with particular emphasis on nutrients and pesticides. Additional data regarding inorganic compounds and selected stable isotopes were obtained to provide a geochemical framework for characterizing source inputs and observed chemical changes during periods of hydrologic transition. Water-quality data were collected from surface-water and groundwater sites representing rural and urban land cover types. Data were obtained from unconfined wells in the recharge zone to characterize the rapid...

Categories: Data; Tags: Bexar County, Comal County, Comal Springs, Culebra Creek, Frio River, All tags... Helotes Creek, Kinney County, Medina County, Nueces River, Sabinal River, San Antonio, Seco Creek, USGS Science Data Catalog (SDC), USGS Station ID 08168710, USGS Station ID 08180941, USGS Station ID 08181400, USGS Station ID 08192000, USGS Station ID 08195000, USGS Station ID 08198000, USGS Station ID 08202600, Uvalde County, aquifer vulnerability, continuous monitoring, deuterium isotopic analysis, nitrate sources, nitrogen isotopic analysis, nutrients, oxygen isotopic analysis, pesticides, strontium isotopic analysis, water chemistry, water-quality sampling, Fewer tags

Data Release for Water-quality and chemical loading data from the Geronimo Creek and Plum Creek watersheds, south-central Texas, April 2015–March 2016

Located in south-central Texas, the Geronimo Creek and Plum Creek watersheds have long been characterized by elevated nitrate concentrations. From April 2015 through March 2016, an investigation was done by the U.S. Geological Survey, in cooperation with the Guadalupe-Blanco River Authority (GBRA) and the Texas State Soil and Water Conservation Board (TSSWCB), to assess nitrate (as nitrogen) concentrations and to document possible sources of elevated nitrate as nitrogen in these two watersheds. Water-quality samples were collected from 20 groundwater, spring, and stream sites across the two watersheds, along with precipitation samples and wastewater treatment plant (WWTP) effluent samples from the Plum Creek watershed....

Categories: Data; Tags: Buda, Caldwell County, Caldwell County, Comal County, Geronimo Creek, All tags... Geronimo Creek, Guadalupe County, Guadalupe County, Hays County, Hydrogeology, Kyle, Lockhart, Luling, Plum Creek, Plum Creek, Texas, USGS Science Data Catalog (SDC), USGS Station ID 08172065, USGS Station ID 08172400, USGS Station ID 08172475, USGS Station ID 08172980, USGS Station ID 08173000, USGS Station ID 08173080, USGS Station ID 08173200, USGS Station ID 293739097565801, USGS Station ID 293802097563800, USGS Station ID 293851097570301, USGS Station ID 294011097575800, USGS Station ID 294108097374000, USGS Station ID 295204097384100, USGS Station ID 295212097373300, USGS Station ID 295220097432601, USGS Station ID 295228097440600, USGS Station ID 295303097394800, USGS Station ID 295309097400100, USGS Station ID 295805097500600, USGS Station ID 300519097503100, Water Quality, Water-quality sampling, deuterium isotopic analysis, hydrogeology, nitrate sources, nitrogen isotopes analysis, nutrients, oxygen isotopic analysis, south-central Texas, water chemistry, Fewer tags