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Unsafe at Low Levels: Adopt a Federal MCL for 1,2,3-Trichloropropane in United States’ Drinking Water

Journal of Science Policy & Governance
​Volume 19, Issue 01 | November 01, 2021

Policy Memo: Unsafe at Low Levels: Adopt a Federal MCL for 1,2,3-Trichloropropane in United States’ Drinking Water

B. Hope Hauptman (1), Colleen C. Naughton (2)
  1. University of California Merced, Environmental Systems Graduate Group, Merced, CA
  2. University of California Merced, Department of Civil and Environmental Engineering, Merced, CA

Corresponding author: [email protected]
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Keywords: TCP; policy analysis; drinking water pollution, maximum contaminant level​
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https://doi.org/10.38126/JSPG190104

Executive Summary

​1,2,3-trichloropropane (TCP) is a toxic, man-made chemical used widely in agricultural and other contexts from the 1940s to the 1980s. TCP has settled into the groundwater supplies nearly everywhere it was used. In 2009, the Environmental Protection Agency (EPA) included TCP on the Third Contaminant Candidate list (CCL3) and listed the safe oral reference dose (RfD) for TCP at 0.004 milligrams per kilogram per day. Since then, we have learned that the scope of the TCP contamination problem is greater than first understood. At least 13 states and one territory have contaminated wells. Animal studies show that TCP is a potent carcinogen, and toxicology studies suggest that TCP is unsafe at levels at and above its 5 ppt detection limit. Three states, California, Hawaii, and New Jersey have adopted enforceable maximum contaminant levels of TCP in groundwater. As other states become aware of contamination levels, it is likely that some of them will also regulate TCP, but that could take many years. Federal legislation could mandate EPA advisories sooner than state legislation. The EPA has used the detection limit as the maximum for at least one other chemical, 1,2-Dibromo-3-chloropropane (DBCP), a common co-contaminant of TCP. We recommend that the EPA adopt TCP’s lowest detection level, 5 ppt, as the federal maximum contaminant level

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Background header image from U.S. Air Force by Alex Grotewohl through a Public Domain license

​B. Hope Hauptman is a third-year graduate student in Environmental Systems at the University of California Merced. Key objectives of her research are to understand historical land use patterns and 1,2,3-trichloropropane (TCP) contamination in California's Central Valley and to address social equity issues surrounding drinking water quality globally.  Ms. Hauptman recently published a systematic review of drinking water treatment methods for 1,2,3-trichloropropane (TCP) in the Journal Water Sanitation and Hygiene for Development. She previously taught high school science in the San Francisco Bay Area for over ten years and was a Volunteer Science Educator in the U.S. Peace Corps in Kenya. She earned a B.S. in Microbiology and Molecular Genetics (MMG) at University of California, Los Angeles and an MS in Instructional Science and Technology from California State University Monterey Bay.
 
Dr.  Colleen C. Naughton is an Assistant Professor in Civil and Environmental Engineering at the University of California Merced. Her lab co-designs sustainable Food-Energy-Water Systems for and with the UnderServed (FEWS-US) nationally and globally. The FEWS-US lab develops and utilizes methods in Life Cycle Assessment (LCA), Geographic Information Systems (GIS), integration of anthropology and engineering, and science policy. Prior to joining UC Merced, Dr. Naughton was an American Association for the Advancement of Science (AAAS) Science and Technology Policy Fellow in Washington D.C. She is a Returned Peace Corps Water, Sanitation, and Hygiene Volunteer from Mali, West Africa, and University of South Florida (M.S. and PhD.), and Purdue (B.S.) alumni in Civil Engineering.
 
Acknowledgements
The authors would like to acknowledge the contributions of Dr. Paul Tratnyek, professor at the Oregon Health & Science University School of Public Health, for providing background materials and sharing his knowledge of TCP contamination with the co-authors and to California State librarian Bradly Seybold for supplying the Pesticide Use Reports.

References

  1. Babcock Jr, Roger W., Bryce K. Harada, Krishna M. Lamichhane, and Korey T. Tsubota. 2018. "Adsorption of 1, 2, 3-trichloropropane (TCP) to meet a MCL of 5 ppt." Environmental pollution 233: 910-915. https://doi.org/10.1016/j.envpol.2017.09.085
  2. Balazs, Carolina L., and Isha Ray. 2014. "The drinking water disparities framework: on the origins and persistence of inequities in exposure." American journal of public health 104, no. 4: 603-611. https://doi.org/10.2105/AJPH.2013.301664
  3. Book, Steven A., and David P. Spath. 2007. "Emerging contaminants in drinking water: a California perspective." Risk Assessment for Chemicals in Drinking Water: 303-313. https://doi.org/10.1002/9780470173381.ch12
  4. Burow, Karen R., Walter D. Floyd, and Matthew K. Landon. 2019. "Factors affecting 1, 2, 3-trichloropropane contamination in groundwater in California." Science of the Total Environment 672: 324-334. https://doi.org/10.1016/j.scitotenv.2019.03.420
  5. California Department of Food and Agriculture (CDFA). 1970-84. Annual Pesticide Use Reports 1970-1984. California State Library Government Publications.
  6. Damania, Richard, Sébastien Desbureaux, Aude-Sophie Rodella, Jason Russ, Esha Zaveri. 2019. Quality Unknown: The Invisible Water Crisis. Washington, DC: World Bank. https://openknowledge.worldbank.org/handle/10986/32245
  7. Fedinick, Kristi Pullen, and Mae Wu. 2017. "Threats on Tap: Widespread Violations Highlight.” The Natural Resources Defense Council. http://ktvk.images.worldnow.com/library/d372ccb7-a023-4177-a362-75f7f05e918b.pdf
  8. Hauptman, Hope, and Colleen C. Naughton. 2021. "Legacy 1, 2, 3-trichloropropane contamination: a systematic review of treatments." Journal of Water, Sanitation and Hygiene for Development. https://doi.org/10.2166/washdev.2021.006
  9. Irwin, Richard D., Joseph K. Haseman, and Scot L. Eustis. 1995. "1, 2, 3-Trichloropropane: a multisite carcinogen in rats and mice." Fundamental and Applied Toxicology 25, no. 2: 241-252. https://doi.org/10.1006/faat.1995.1060
  10. Kielhorn, Janet, G. Konnecker, Charles Pohlenz-Michel, S. Schmidt, Inge Mangelsdorf, and World Health Organization. 2003. 1, 2, 3-Trichloropropane. World Health Organization. https://apps.who.int/iris/bitstream/handle/10665/42641/9241530561.pdf
  11. Klein, Kerry. 2018. “To Pay For 1,2,3-TCP Cleanup, A Viable Strategy: Sue.” Valley Public Radio, August 14, 2018. https://www.kvpr.org/post/pay-123-tcp-cleanup-viable-strategy-sue
  12. La, David K., Robert Schoonhoven, Norio Ito, and James A. Swenberg. 1996. "The effects of exposure route on DNA adduct formation and cellular proliferation by 1, 2, 3-trichloropropane." Toxicology and applied pharmacology 140, no. 1: 108-114. https://doi.org/10.1006/taap.1996.0203
  13. National Toxicology Program (NTP). 1993. “Toxicology and carcinogenesis studies of 1, 2, 3-trichloropropane (CAS no 96-18-4) in F344-N rats and B6C3F1 mice (gavage studies).” US Department of Health and Human Services: Public Health Service: National Institutes of Health. https://pubmed.ncbi.nlm.nih.gov/12692652/
  14. North, Mike. 2011. “Livingston Awarded $9 Million Settlement.” Merced Sun Star, September 20, 2011. https://www.mercedsunstar.com/news/local/article3260829.html
  15. Schaider, Laurel A., Lucien Swetschinski, Christopher Campbell, and Ruthann A. Rudel. 2019. "Environmental justice and drinking water quality: are there socioeconomic disparities in nitrate levels in US drinking water?" Environmental Health: 18, no. 1: 1-15. https://doi.org/10.1186/s12940-018-0442-6
  16. Schlesinger, Paul. 2019. “City of Atwater Wins $63 Million from Lawsuit with Shell Oil Co. over Tainted Water.” YourCentralValley.com, August 30, 2019. https://www.yourcentralvalley.com/news/top-stories/city-of-atwater-wins-63-million-from-lawsuit-with-shell-oil-co-over-tainted-water/.
  17. State Water Resources Control Board (SWRCB). 2018. “1,2,3-Trichloropropane (1,2,3-TCP) Maximum Contaminant Level (MCL).” Div. Drinking Water Branch. https://www.waterboards.ca.gov/drinking_water/certlic/drinkingwater/documents/123-tcp/123tcp_utility_training.pdf
  18. Tardiff, Robert G., and M. Leigh Carson. 2010. "Derivation of a reference dose and drinking water equivalent level for 1, 2, 3-trichloropropane." Food and chemical toxicology 48, no. 6: 1488-1510. https://doi.org/10.1016/j.fct.2010.03.016
  19. Teitelbaum, Daniel Thau. 1999. "The toxicology of 1, 2-dibromo-3-chloropropane (DBCP): a brief review." International Journal of Occupational and Environmental Health 5, no. 2: 122-126. https://doi.org/10.1179/oeh.1999.5.2.122
  20. Torralba-Sanchez, Tifany L., Eric J. Bylaska, Alexandra J. Salter-Blanc, Douglas E. Meisenheimer, Molly A. Lyon, and Paul G. Tratnyek. 2020. "Reduction of 1, 2, 3-trichloropropane (TCP): pathways and mechanisms from computational chemistry calculations." Environmental Science: Processes & Impacts 22, no. 3: 606-616. https://doi.org/10.1039/C9EM00557A
  21. U.S. Environmental Protection Agency (EPA). 2009. “Toxicological review of 1,2,3-trichloropropane In Support of Summary Information on the Integrated Risk Information System (IRIS).” https://cfpub.epa.gov/ncea/iris/iris_documents/documents/toxreviews/0200tr.pdf
  22. U.S. Environmental Protection Agency (EPA). 2012. “Revisions to the Unregulated Contaminant Monitoring Regulation (UCMR 3) for Public Water Systems.” https://www.govinfo.gov/content/pkg/FR-2012-05-02/pdf/2012-9978.pdf
  23. U.S. Environmental Protection Agency (EPA). 2017a. ‘Technical Fact Sheet – 1,2,3-Trichloropropane (TCP).” https://www.epa.gov/fedfac/technical-fact-sheet-123-trichloropropane-tcp
  24. U.S. Environmental Protection Agency (EPA). 2017b. “Data Summary of The Third Unregulated Contaminant Monitoring Rule.” Accessed June 30, 2021. https://www.epa.gov/dwucmr/data-summary-third-unregulated-contaminant-monitoring-rule
  25. U.S. Environmental Protection Agency (EPA). 2017c. “Occurrence Data for the Unregulated Contaminant Monitoring Rule 2013-2015.” https://www.epa.gov/dwucmr/occurrence-data-unregulated-contaminant-monitoring-rule#3
  26. U.S. Environmental Protection Agency (EPA). 2002. “National Primary Drinking Water Regulations; Announcement of the Results of EPA's Review of Existing Drinking Water Standards and Request for Public Comment 2002.” Accessed June 30, 2021. https://www.federalregister.gov/documents/2002/04/17/02-9154/national-primary-drinking-water-regulations-announcement-of-the-results-of-epas-review-of-existing
  27. U.S. Environmental Protection Agency (EPA). n.d. “Understanding how EPA develops new drinking water regulations.” Accessed June 30, 2021. https://www.epa.gov/sdwa/how-epa-regulates-drinking-water-contaminants
  28. U.S. Safe Drinking Water Act (SDWA). 1996. Committee on Environment and Public Works. U.S. Government Printing Office. Accessed June 30, 2021. https://www.govinfo.gov/content/pkg/CPRT-106SPRT67528/pdf/CPRT-106SPRT67528.pdf
  29. Villeneuve, D. C., I. Chu, V. E. Secours, M. G. Cote, G. L. Plaa, and V. E. Valli. 1985. "Results of a 90-day toxicity study on 1, 2, 3-and 1, 1, 2-trichloropropane administered via the drinking water." Science of The Total Environment 47: 421-426. https://doi.org/10.1016/0048-9697(85)90346-8
  30. Walpole, Sarah Catherine, David Prieto-Merino, Phil Edwards, John Cleland, Gretchen Stevens, and Ian Roberts. 2012. "The weight of nations: an estimation of adult human biomass." BMC Public Health 12, no. 1: 1-6. https://doi.org/10.1186/1471-2458-12-43

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