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Volume 32, Supplement –Summer 2026

SUPPLEMENT ISSUE
Supplement

Progress and Expansion of the National Wastewater Surveillance System, United States, 2020–2024

Miguella Mark-Carew1Comments to Author , Megan Bias1, Stacie Reckling, Kaniz Madhobi, Daniel Cornforth, Igor Volkov, Andrew L. Rainey, Benjamin Lorentz, Kaitlin R. Taibl, Lisa P. Oakley, Rachel West, Rory Welsh, Jeffrey W. Mercante, Niketta Womack, Nicole Fehrenbach, and Jonathan Yoder
Author affiliation: Centers for Disease Control and Prevention, Atlanta, Georgia, USA (M. Mark-Carew, M. Bias, K. Madhobi, D. Cornforth, A.L. Rainey, K.R. Taibl, L.P. Oakley, R. West, R. Welsh, J.W. Mercante, N. Womack, N. Fehrenbach, J. Yoder); Chenega Corporation, Anchorage, Alaska, USA (S. Reckling, I. Volkov); Goldbelt Professional Services LLC, Chesapeake, Virginia, USA (B. Lorentz)

Main Article

Figure 2

National Wastewater Surveillance System county coverage by US Department of Agriculture RUCC, United States, January 1–December 31, 2024. Counties with >1 wastewater site that reported to NWSS are displayed as bolder colors; muted colors with hatching represent no site coverage. RUCC data were from the 2023 RUCC dataset (https://www.ers.usda.gov/data-products/rural-urban-continuum-codes). Metro, metropolitan; RUCC, Rural–Urban Continuum Code.

Figure 2. National Wastewater Surveillance System county coverage by US Department of Agriculture RUCC, United States, January 1–December 31, 2024. Counties with >1 wastewater site that reported to NWSS are displayed as bolder colors; muted colors with hatching represent no site coverage. RUCC data were from the 2023 RUCC dataset (https://www.ers.usda.gov/data-products/rural-urban-continuum-codes). Metro, metropolitan; RUCC, Rural–Urban Continuum Code.

Main Article

1These first authors contributed equally to this article.

Page created: September 05, 2026
Page updated: September 15, 2026
Page reviewed: September 15, 2026
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