40 CFR Part 192, Subpart A, Table 1 to Subpart A of Part 192 - Maximum Concentration of Constituents for Groundwater Protection

prev | next
View PDF at GPO Pt. 192, Subpt. A, Table 1
Table 1 to Subpart A of Part 192—Maximum Concentration of Constituents for Groundwater Protection
Constituent concentration 1 Maximum
1 Milligrams per liter, unless stated otherwise.
2 Where secular equilibrium obtains, this criterion will be satisfied by a concentration of 0.044 milligrams per liter (0.044 mg/l). For conditions of other than secular equilibrium, a corresponding value may be derived and applied, based on the measured site-specific ratio of the two isotopes of uranium.
Arsenic 0.05
Barium 1.0
Cadmium 0.01
Chromium 0.05
Lead 0.05
Mercury 0.002
Selenium 0.01
Silver 0.05
Nitrate (as N) 10.
Molybdenum 0.1
Combined radium-226 and radium-228 5 pCi/liter
Combined uranium-234 and uranium-238 2 30 pCi/liter
Gross alpha-particle activity (excluding radon and uranium) 15 pCi/liter
Endrin (1,2,3,4,10,10-hexachloro-6,7-exposy-1,4,4a,5,6,7,8,8a-octahydro-1,4-endo,endo-5,8-dimethanonaphthalene) 0.0002
Lindane (1,2,3,4,5,6-hexachlorocyclohexane, gamma insomer) 0.004
Methoxychlor (1,1,1-trichloro-2,2′-bis(p-methoxyphenylethane)) 0.1
Toxaphene (C10 H10 Cl6, technical chlorinated camphene, 67-69 percent chlorine) 0.005
2,4-D (2,4-dichlorophenoxyacetic acid) 0.1
2,4,5-TP Silvex (2,4,5-trichlorophenoxypropionic acid) 0.01
[60 FR 2866, Jan. 11, 1995]

Title 40 published on 2014-07-01

no entries appear in the Federal Register after this date.

This is a list of United States Code sections, Statutes at Large, Public Laws, and Presidential Documents, which provide rulemaking authority for this CFR Part.

This list is taken from the Parallel Table of Authorities and Rules provided by GPO [Government Printing Office].

It is not guaranteed to be accurate or up-to-date, though we do refresh the database weekly. More limitations on accuracy are described at the GPO site.


United States Code
U.S. Code: Title 42 - THE PUBLIC HEALTH AND WELFARE
Public Laws