A s part of development of a regional source water protection plan, in 2015–2016, the New Mexico Bureau of Geology and Mineral Resources performed a technical review of existing hydrogeology studies in Curry and Roosevelt counties in east-central New Mexico. Additionally, groundwater quality was tested in several wells, and groundwater levels were examined to provide up-to-date information on the availability of groundwater in the region. This report describes the results of the hydrogeologic review and findings from the groundwater study.

Linear combination fitting results of synchrotron data to determine arsenic speciation in soil samples. This dataset is associated with the following publication: Whitacre, S., N. Basta, B. Stevens, V. Hanley, R. Anderson, and K. Scheckel. Modification of an Existing In vitro Method to Predict Relative Bioavailable Arsenic in Soils. Jacob de Boer, and Shane Snyder CHEMOSPHERE. Elsevier Science Ltd, New York, NY, USA, 180: 545-552, (2017).

Code, data and maps associated with the article Podgorski, J., and M. Berg (2020), Global threat of arsenic in groundwater, Science, 368(6493), 845–850, doi:10.1126/science.aba1510.

EPA no longer updates this information, but it may be useful as a reference or resource. Welcome to the STORET Legacy Data Center, site of the world's largest repository of ambient Water Quality Data. From this site you will be able to access a database that holds over 200 million water sample observations from about 700,000 sampling sites for both surface and ground water.This web site allows both scientists and the general public to access the historical data from the legacy STORET system. First-time users should narrow their search based on the options from the Query page, while experienced users may jump to the no-frills Advanced Query form for requesting data. Legacy STORET contains data of undocumented quality. Further, the data in this system is static, and all new data are being entered into Modernized STORET. Background information about the Office of Water and the history of STORET may be found by following the Purpose link. For more information on the layout of this site, please follow the Site Map link. Internet Archive URL: https://web.archive.org/web/*/https://www3.epa.gov/storet/legacy/gateway.htm

Find out more about how the environment may be affecting your health with this easy to use tool that lets you see health and environmental information in one place. Learn about environmental health issues in your community and what you can do to protect yourself and your family. Use this website to answer questions about air quality, drinking water, cancer, and a wide variety of other topics.

Data (2 excel files) consist of the analytical test results on water sample collected from the two adsorption media tanks of the arsenic removal system during the regeneration processes conducted multiply times over a five-year period. Data set also includes the companion bed volumes of water treated by the tank of media at the time the water samples were collected. This dataset is associated with the following publications: Sorg, T., A. Chen, L. Wang, and R. Kolich. Regeneration of a Full-Scale Arsenic Removal Adsorptive Media System,Part 1: The Regeneration Process. JOURNAL OF AMERICAN WATER WORKS ASSOCIATION. American Water Resources Association, Middleburg, VA, USA, 109(5): 13-24, (2017). Sorg, T., R. Kolich, A.S.C. Chen, and L. Wang. Regeneration of a Full-Scale Arsenic Removal Adsorptive Media System,Part 2: The Performance and Cost. JOURNAL OF THE AMERICAN WATER WORKS ASSOCIATION. American Water Works Association, Denver, CO, USA, 109(5): E122-E128, (2017).

Total and bioaccessible arsenic and lead levels and plant uptake in garden plants from Puerto Rico. This dataset is not publicly accessible because: EPA cannot release personally identifiable information regarding living individuals, according to the Privacy Act and the Freedom of Information Act (FOIA). This dataset contains information about human research subjects. Because there is potential to identify individual participants and disclose personal information, either alone or in combination with other datasets, individual level data are not appropriate to post for public access. Restricted access may be granted to authorized persons by contacting the party listed. It can be accessed through the following means: The public can access the non personally identifiable data through the journal (Geosciences) publisher (MDPI). The journal is open access and does not require a subscription. Format: These data were generated from EPA Regional plant and soil samples. This dataset is associated with the following publication: Misenheimer, J., C. Nelson, E. Huertas, M. Medina-Vera, A. Prevatte, and K. Bradham. Total and Bioaccessible Soil Arsenic and Lead Levels and Plant Uptake in Three Urban Community Gardens in Puerto Rico. Geosciences. MDPI AG, Basel, SWITZERLAND, 8(2): 43, (2018).

This map shows the general pattern of arsenic contamination from Ruston (Tacoma Smelter Plume) By Census Block Group. With 90% certainty, at least 1 in 10 parcels will have soil arsenic at or above levels shown. Predictions are based on distance and direction from the former Asarco smelter, and on sampling data from forested and other soils undisturbed by development. Actual arsenic levels may vary greatly from parcel to parcel.Disclaimer: Actual arsenic levels may vary greatly from parcel to parcel. Property-specific sampling is necessary to determine the actual amount of arsenic on a given property. How to Sample your own soil - https://ecology.wa.gov/Spills-Cleanup/Contamination-cleanup/Dirt-Alert-program/Soil-samplingPattern and Description of the Tacoma Smelter Plume:There are three major factors to Arsenic deposition (the three D's) but many others exist. 'D'irection- wind rose direction,'D'istance, 'D'isturbanceArsenic tends to exceed state cleanup levels more often than other metals. Lead is the other main contaminant.Arsenic and lead are found mainly in the top six inches of soil.In areas where soil has been moved or turned over, contamination can be deeper.Undisturbed areas, such as forests, tend to have higher levels of contamination.In general, levels are related to distance and direction from the former smelter. Levels decrease with distance and are higher along the dominant north-northeast and south-southwest wind directions.Created a dataset for arsenic(0 to 6 inches sample depth) that had similar study characteristics in the field and lab. Various environmental studies were reviewed because of the size of the study area. Ecology reviewed data from over 130 studies and found 23 studies that had applicable data. Theses studies contained over 22,500 disturbed-residential samples and 1469 undisturbed samples for our analysis.

This map shows the general pattern of arsenic contamination from Ruston (Tacoma Smelter Plume) By Census Block Group. With 90% certainty, at least 1 in 10 parcels will have soil arsenic at or above levels shown. Predictions are based on distance and direction from the former Asarco smelter, and on sampling data from forested and other soils undisturbed by development. Actual arsenic levels may vary greatly from parcel to parcel.Disclaimer: Actual arsenic levels may vary greatly from parcel to parcel. Property-specific sampling is necessary to determine the actual amount of arsenic on a given property. How to Sample your own soil - https://ecology.wa.gov/Spills-Cleanup/Contamination-cleanup/Dirt-Alert-program/Soil-samplingPattern and Description of the Tacoma Smelter Plume:There are three major factors to Arsenic deposition (the three D's) but many others exist. 'D'irection- wind rose direction,'D'istance, 'D'isturbanceArsenic tends to exceed state cleanup levels more often than other metals. Lead is the other main contaminant.Arsenic and lead are found mainly in the top six inches of soil.In areas where soil has been moved or turned over, contamination can be deeper.Undisturbed areas, such as forests, tend to have higher levels of contamination.In general, levels are related to distance and direction from the former smelter. Levels decrease with distance and are higher along the dominant north-northeast and south-southwest wind directions.Created a dataset for arsenic(0 to 6 inches sample depth) that had similar study characteristics in the field and lab. Various environmental studies were reviewed because of the size of the study area. Ecology reviewed data from over 130 studies and found 23 studies that had applicable data. Theses studies contained over 22,500 disturbed-residential samples and 1469 undisturbed samples for our analysis.

This map shows the general pattern of arsenic contamination from Ruston (Tacoma Smelter Plume) By Census Block Group. With 90% certainty, at least 1 in 10 parcels will have soil arsenic at or above levels shown. Predictions are based on distance and direction from the former Asarco smelter, and on sampling data from forested and other soils undisturbed by development. Actual arsenic levels may vary greatly from parcel to parcel.Disclaimer: Actual arsenic levels may vary greatly from parcel to parcel. Property-specific sampling is necessary to determine the actual amount of arsenic on a given property. How to Sample your own soil - https://ecology.wa.gov/Spills-Cleanup/Contamination-cleanup/Dirt-Alert-program/Soil-samplingPattern and Description of the Tacoma Smelter Plume:There are three major factors to Arsenic deposition (the three D's) but many others exist. 'D'irection- wind rose direction,'D'istance, 'D'isturbanceArsenic tends to exceed state cleanup levels more often than other metals. Lead is the other main contaminant.Arsenic and lead are found mainly in the top six inches of soil.In areas where soil has been moved or turned over, contamination can be deeper.Undisturbed areas, such as forests, tend to have higher levels of contamination.In general, levels are related to distance and direction from the former smelter. Levels decrease with distance and are higher along the dominant north-northeast and south-southwest wind directions.Created a dataset for arsenic(0 to 6 inches sample depth) that had similar study characteristics in the field and lab. Various environmental studies were reviewed because of the size of the study area. Ecology reviewed data from over 130 studies and found 23 studies that had applicable data. Theses studies contained over 22,500 disturbed-residential samples and 1469 undisturbed samples for our analysis.

The dataset contains chromatographic traces of samples containing thioarsenic species and solubility data for disordered orpiment (arsenic sulfide). This dataset is associated with the following publication: Wilkin, R.T., R.G. Ford, L.M. Costantino, R.R. Ross, D.G. Beak, and K.G. Scheckel. Thioarsenite Detection and Implications for Arsenic Transport in Groundwater. ENVIRONMENTAL SCIENCE & TECHNOLOGY. American Chemical Society, Washington, DC, USA, 53(20): 11684-11693, (2019).

The dataset provides information on chromium concentrations extracted from rock samples collected at the Garfield SF site in New Jersey (USA). The data are discussed in Zhao et al. (2017). Chemical Geology, v. 474, p. 1-8. This dataset is associated with the following publication: Zhao, J., T. Al, S. Chapman, B. Parker, K. Mishkin, D. Cutt, and R. Wilkin. Determination of Cr(III) solids formed by reduction of Cr(VI) in a contaminated fractured bedrock aquifer: evidence for natural attenuation of Cr(VI). CHEMICAL GEOLOGY. Elsevier Science Ltd, New York, NY, USA, 474: 1-8, (2017).