(1) Included in FDA's 9 contaminant regulations.
(2) Included in FDA's D/DBP rule. See D/DBP monitoring requirements section on page 19 in Appendix A for details.
(6) No SOQs or MCLs established for individual trihalomethane contaminants. The sum of the 4 THMs is regulated as total trihalomethanes (TTHMs).
(7) FDA requires that four synthetic organic chemicals (SOC) listed must be done quarterly for four consecutive quarters, then annually for new products and new companies.
All SOQs, MCLs, SMCLs, and guidelines in mg/L (ppm) except as noted.