Environmental Processes

, Volume 5, Issue 2, pp 441–450 | Cite as

Associations between Dissolved Uranium, Nitrate, Calcium, Alkalinity, Iron, and Manganese Concentrations in the Edwards-Trinity Plateau Aquifer, Texas, USA

  • Paul F. Hudak
Technical Note


Dissolved uranium, nitrate, calcium, alkalinity, iron, and manganese concentrations were compiled from samples collected at 108 water wells between 2010 and 2016 in the Edwards-Trinity Plateau Aquifer of southwestern Texas. Sampled wells ranged from 19 m to 85 m deep, with a median depth of 77 m. Uranium concentrations ranged from <1 μg/L to 154 μg/L, with a median concentration of 19 μg/L. In 31 wells, uranium concentrations exceeded the drinking water standard of 30 μg/L. Based upon Spearman rank correlation, at a significance level of 0.01, significant positive associations were observed between uranium and both nitrate and calcium concentrations. In 40 wells sampled twice within the above time period, uranium concentrations decreased in 25 wells, increased in 13 wells, and did not change in two wells. The maximum concentration decrease and increase was 10 μg/L and 67 μg/L, respectively. Change in uranium concentration was significantly, positively correlated with change in nitrate and calcium concentration.


Uranium Nitrate Calcium Groundwater Edwards-trinity plateau Texas 


  1. Bagla P, Kaiser J (1996) India’s spreading health crisis draws global arsenic experts. Science 274(11):174–175CrossRefGoogle Scholar
  2. Barker RA, Ardis AF (1992) Configuration of the base of the Edwards-trinity plateau aquifer system and hydrology of the underlying pre-cretaceous rocks, west-Central Texas. U.S. Geol Surv Water Resour Invest Rep 91-4071:1–25Google Scholar
  3. Burow KR, Nolan BT, Rupert MG, Dubrovsky NM (2010) Nitrate in groundwater of the United States, 1991-2003. Environ Sci Technol 44(13):4988–4997CrossRefGoogle Scholar
  4. Burow KR, Belitz K, Dubrovsky NM, Jurgens BC (2017) Large decadal-scale changes in uranium and bicarbonate in groundwater of the irrigated western U.S. Sci Total Environ 586:87–95CrossRefGoogle Scholar
  5. Bush PW, Ulery RL, Rittmaster RL (1994) Dissolved-solids concentrations and hydrochemical facies in water of the Edwards-trinity aquifer system, west-Central Texas. U.S. Geol Surv Water Resour Invest Rep 93-4126:1–29Google Scholar
  6. CDC (Centers for Disease Control and Prevention) (2018) Community water. Available from:
  7. Chaudhuri S, Ale S (2014) An appraisal of groundwater quality in Seymour and Blaine aquifers in a major agro-ecological region in Texas, USA. Environ Earth Sci 71:2765–2777CrossRefGoogle Scholar
  8. Davis JA, Meece DE, Kohler M, Curtis GP (2004) Approaches to surface complexation modeling of uranium(VI) adsorption on aquifer sediments. Geochim Cosmochim Acta 68(18):3621–3641CrossRefGoogle Scholar
  9. De Roos AJ, Ward MH, Lynch CF, Cantor KP (2003) Nitrate in public water supplies and risk of colon and rectum cancers. Epidemiology 14(6):640–649CrossRefGoogle Scholar
  10. DeSimone LA, McMahon PB, Rosen MR (2009) The quality of our nation’s waters: water quality in principal aquifers of the United States, 1991–2010. US Geol Surv Circ 1360:1–1151.
  11. EPA (U.S. Environmental Protection Agency) (2017) Drinking water contaminants – standards and regulations. U.S. Environmental Protection Agency, Washington, D.C. Available from:
  12. Frengstad B, Skrede AKM, Banks D, Krog R, Siewers U (2000) The chemistry of Norwegian groundwaters: III. The distribution of trace elements in 476 crystalline bedrock groundwaters, as analysed by ICP-MS techniques. Sci Total Environ 246:21–40CrossRefGoogle Scholar
  13. Gardner KK, Vogel RM (2005) Predicting ground water nitrate concentration from land use. Ground Water 43:343–352CrossRefGoogle Scholar
  14. Global Forest Watch (2011) USA Land Cover (2011). Available from:
  15. Hem JD (1985) Study and interpretation of the chemical characteristics of natural water. U.S. Geological Survey Water-Supply Paper 2254, University of Virginia, Charlottesville, p 263Google Scholar
  16. Hillin CK, Hudak PF (2003) Nitrate contamination in the Seymour aquifer, north-Central Texas, USA. Bull Environ Contam Toxicol 70:674–679CrossRefGoogle Scholar
  17. Hopkins J (1995) Water quality in the Edwards-Trinity (Plateau) aquifer, Edwards plateau and trans-Pecos, Texas. Hydrologic Atlas 3. Texas Water Development Board, Austin, TexasGoogle Scholar
  18. Hudak PF (2000) Regional trends in nitrate content of Texas aquifers. J Hydrol 228:37–47CrossRefGoogle Scholar
  19. Knobeloch L, Salna B, Hogan A, Postle J, Anderson H (2000) Blue babies and nitrate-contaminated well water. Environ Health Perspect 108(7):675–678CrossRefGoogle Scholar
  20. Kumar M, Singh S, Mahajan RK (2006) Trace level determination of U, Zn, Cd, Pb and Cu in drinking water samples. Environ Monit Assess 112(2006):283–292CrossRefGoogle Scholar
  21. Lahermo P, Juntunen R (1991) Radiogenic elements in Finnish soils and groundwaters. Appl Geochem 6:169–183CrossRefGoogle Scholar
  22. Liesch T, Hinrichsen S, Goldscheider N (2015) Uranium in groundwater – fertilizers versus geogenic sources. Sci Total Environ 536:981–995CrossRefGoogle Scholar
  23. Lockhart KM, King AM, Harter T (2013) Identifying sources of groundwater nitrate contamination in a large alluvial groundwater basin with highly diversified intensive agricultural production. J Contam Hydrol 151:140–154CrossRefGoogle Scholar
  24. Nickson R, McArthur J, Burgess W, Ahmed KM, Ravenscroft P, Mizanur R (1998) Arsenic poisoning of Bangladesh groundwater. Nature 395:338CrossRefGoogle Scholar
  25. Nolan J, Weber KA (2015) Natural uranium contamination in major U.S. aquifers linked to nitrate. Environ Sci Technol Lett 2(8):215–220CrossRefGoogle Scholar
  26. NRC (National Research Council) (1984) Groundwater contamination. In: National Academies Press. D.C, WashingtonGoogle Scholar
  27. Nriagu J, Nam D, Ayanwola T, Dinh H, Erdenechimeg E, Ochir C, Bolormaa T (2012) High levels of uranium in groundwater of Ulaanbaatar, Mongolia. Sci Total Environ 414:722–726CrossRefGoogle Scholar
  28. Porcelli D, Swarzenski PW (2003) The behavior of U- and Th-series nuclides in groundwater. Uranium-Series Geochem 52:317–361Google Scholar
  29. Power JF, Schepers JS (1989) Nitrate contamination of groundwater in North America. Agric Ecosyst Environ 26:165–187CrossRefGoogle Scholar
  30. Reedy RC, Scanlon BR, Walden S, Strassberg G (2011) Naturally occurring groundwater contamination in Texas. Texas Water Development Board, Austin, TexasGoogle Scholar
  31. Riedel T, Kubeck C (2018) Uranium in groundwater – a synopsis based on a large hydrogeochemical data set. Water Res 129:29–38CrossRefGoogle Scholar
  32. Rodriguez-Lado L, Sun G, Berg M, Zhang Q, Xue H, Zheng Q (2013) Groundwater arsenic contamination throughout China. Science 341(6148):866–868CrossRefGoogle Scholar
  33. Smedley PL, Kinniburgh DG (2002) A review of the source, behavior and distribution of arsenic in natural waters. Appl Geochem 17:517–568CrossRefGoogle Scholar
  34. Stalder E, Blanc A, Haldimann M, Dudler V (2012) Occurrence of uranium in Swiss drinking water. Chemosphere 86:672–679CrossRefGoogle Scholar
  35. TCEQ (Texas Commission on Environmental Quality) (2017) Active oil and gas wells in Texas, January 2017. Available from:
  36. TWC (Texas Water Commission) (1989) Ground-water quality of Texas. Texas Water Commission, Austin, TexasGoogle Scholar
  37. TWDB (2017) Groundwater Database (GWDB) Reports. Available from:
  38. TWDB (2018) Edwards-Trinity (Plateau) aquifer. Available from:
  39. TWDB (Texas Water Development Board) (2003) A field manual for groundwater sampling. Texas Water Development Board, AustinGoogle Scholar
  40. USDA (Unites States Department of Agriculture) (2012a) Acres of irrigated land as percent of land in farm acres, 2012. Available form:
  41. USGS (U.S. Geological Survey) (2002) Groundwater atlas of the United States: Oklahoma, Texas. Hydrologic atlas 730-E. U.S. Geological Survey, Reston, VirginiaGoogle Scholar
  42. Ward MH, Zahm SH, Blair A (1994) Dietary factors and non-Hodgkin's lymphoma. Cancer Causes Control 5:422–432CrossRefGoogle Scholar
  43. Waseem A, Ullah H, Rauf MK, Ahmad I (2015) Distribution of natural uranium in surface and groundwater resources: a review. Crit Rev Environ Sci Technol 45:2391–2423CrossRefGoogle Scholar
  44. Zielinski RA, Simmons KR, Orem WH (2000) Use of 234U and 238U isotopes to identify fertilizer-derived uranium in the Florida Everglades. Appl Geochem 15(3):369–383CrossRefGoogle Scholar
  45. Zirkle KW, Nolan BT, Jones RR, Weyer PJ, Ward MH, Wheeler DC (2016) Assessing the relationship between groundwater nitrate and animal feeding operations in Iowa (USA). Sci Total Environ 566-567:1062–1068CrossRefGoogle Scholar

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© Springer International Publishing AG, part of Springer Nature 2018

Authors and Affiliations

  1. 1.Department of Geography and the EnvironmentUniversity of North TexasDentonUSA

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