The maximum contaminant level (MCL) for nitrate is 10 milligrams per liter (mg/L), with compliance to be based on the average of an initial and a confirmation. The initial sample, taken atSS02/SP02 on May 22, 2024, was 19.8 mg/L, and the confirmation sample, taken at the same location on June 3, 2024, was 2 mg/L. The average of the initial sample and the confirmation sample is 10.9 mg/L, and therefore, Respondent violated the nitrate MCL.