40 C.F.R. Appendix III to Part 257
Constituents for Detection Monitoring
Cite as 40 C.F.R. Appendix III to Part 257 (2026)
Common name 1 Boron Calcium Chloride Fluoride pH Sulfate Total Dissolved Solids (TDS) 1 Common names are those widely used in government regulations, scientific publications, and commerce; synonyms exist for many chemicals. [80 FR 21500, Apr. 17, 2015]