To cite MassWateR in publications use:

  Beck MW, Wetherill B, Carr J (2023). “MassWateR: Improving quality
  control, analysis, and sharing of water quality data.” _PLOS ONE_,
  *18*(11), e0293737. doi:10.1371/journal.pone.0293737
  <https://doi.org/10.1371/journal.pone.0293737>.

A BibTeX entry for LaTeX users is

  @Article{,
    title = {{{MassWateR}: Improving quality control, analysis, and sharing of water quality data}},
    author = {Marcus W. Beck and Benjamen Wetherill and Jillian Carr},
    journal = {{PLOS ONE}},
    year = {2023},
    volume = {18},
    number = {11},
    pages = {e0293737},
    doi = {10.1371/journal.pone.0293737},
  }