40 C.F.R. § 265 app III to Part 265

Current through September 30, 2024
Appendix III to Part 265 - EPA Interim Primary Drinking Water Standards

Parameter Maximum level (mg/l)
Arsenic0.05
Barium1.0
Cadmium0.01
Chromium0.05
Fluoride1.4-2.4
Lead0.05
Mercury0.002
Nitrate (as N)10
Selenium0.01
Silver0.05
Endrin0.0002
Lindane0.004
Methoxychlor0.1
Toxaphene0.005
2,4-D0.1
2,4,5-TP Silver0.01
Radium5 pCi/1
Gross Alpha15 pCi/1
Gross Beta4 millirem/yr
Turbidity1/TU
Coliform Bacteria1/100 ml

Comment: Turbidity is applicable only to surface water supplies.

40 C.F.R. 265 app III to Part 265