Substance | Concentration in milligrams per liter |
Chloride1 | 250.0 |
Iron1 | 0.3 |
Manganese1 | 0.05 |
Phenols | 0.001 |
Total dissolved solids1 | 500.0 |
Zinc1 | 5.0 |
1 Mineral water is exempt from allowable level. The exemptions are aesthetically based allowable levels and do not relate to a health concern.
Table 1
Annual average of maximum daily air temperatures (°F) | Fluoride concentration in milligrams per liter |
53.7 and below | 2.4 |
53.8-58.3 | 2.2 |
58.4-63.8 | 2.0 |
63.9-70.6 | 1.8 |
70.7-79.2 | 1.6 |
79.3-90.5 | 1.4 |
Contaminant | Concentration in milligrams per liter (or as specified) |
Arsenic | 0.010 |
Antimony | .006 |
Barium | 2 |
Beryllium | 0.004 |
Cadmium | 0.005 |
Chromium | 0.1 |
Copper | 1.0 |
Cyanide | 0.2 |
Lead | 0.005 |
Mercury | 0.002 |
Nickel | 0.1 |
Nitrate | 10 (as nitrogen) |
Nitrite | 1 (as nitrogen) |
Total Nitrate and Nitrite | 10 (as nitrogen) |
Selenium | 0.05 |
Thallium | 0.002 |
Contaminant (CAS Reg. No.) | Concentration in milligrams per liter |
Benzene (71-43-2) | 0.005 |
Carbon tetrachloride (56-23-5) | 0.005 |
o- Dichlorobenzene (95-50-1) | 0.6 |
p- Dichlorobenzene (106-46-7) | 0.075 |
1,2-Dichloroethane (107-06-2) | 0.005 |
1,1-Dichloroethylene (75-35-4) | 0.007 |
cis-1,2-Dichloroethylene (156-59-2) | 0.07 |
trans-1,2-Dichloroethylene (156-60-5) | 0.1 |
Dichloromethane (75-09-2) | 0.005 |
1,2-Dichloropropane (78-87-5) | 0.005 |
Ethylbenzene (100-41-4) | 0.7 |
Monochlorobenzene (108-90-7) | 0.1 |
Styrene (100-42-5) | 0.1 |
Tetrachloroethylene (127-18-4) | 0.005 |
Toluene (108-88-3) | 1 |
1,2,4-Trichlorobenzene (120-82-1) | 0.07 |
1,1,1-Trichloroethane (71-55-6) | 0.20 |
1,1,2-Trichloroethane (79-00-5) | 0.005 |
Trichloroethylene (79-01-6) | 0.005 |
Vinyl chloride (75-01-4) | 0.002 |
Xylenes (1330-20-7) | 10 |
Contaminant (CAS Reg. No.) | Concentration in milligrams per liter |
Alachlor (15972-60-8) | 0.002 |
Atrazine (1912-24-9) | 0.003 |
Benzo(a)pyrene (50-32-8) | 0.0002 |
Carbofuran (1563-66-2) | 0.04 |
Chlordane (57-74-9) | 0.002 |
Dalapon (75-99-0) | 0.2 |
1,2-Dibromo-3-chloropropane (96-12-8) | 0.0002 |
2,4-D (94-75-7) | 0.07 |
Di(2-ethylhexyl)adipate (103-23-1) | 0.4 |
Di(2-ethylhexyl)phthalate (117-81-7) | 0.006 |
Dinoseb (88-85-7) | 0.007 |
Diquat (85-00-7) | 0.02 |
Endothall (145-73-3) | 0.1 |
Endrin (72-20-8) | 0.002 |
Ethylene dibromide (106-93-4) | 0.00005 |
Glyphosate (1071-53-6) | 0.7 |
Heptachlor (76-44-8) | 0.0004 |
Heptachlor epoxide (1024-57-3) | 0.0002 |
Hexachlorobenzene (118-74-4) | 0.001 |
Hexachlorocyclopentadiene (77-47-4) | 0.05 |
Lindane (58-89-9) | 0.0002 |
Methoxychlor (72-43-5) | 0.04 |
Oxamyl (23135-22-0) | 0.2 |
Pentachlorophenol (87-86-5) | 0.001 |
PCB's (as decachlorobiphenyl) (1336-36-3) | 0.0005 |
Picloram (1918-02-1) | 0.5 |
Simazine (122-34-9) | 0.004 |
2,3,7,8-TCDD (Dioxin) (1746-01-6) | 3 * 10-8 |
Toxaphene (8001-35-2) | 0.003 |
2,4,5-TP (Silvex) (93-72-1) | 0.05 |
Contaminant | Concentration in milligrams per liter |
Aluminum | 0.2 |
Silver | 0.1 |
Sulfate1 | 250.0 |
1 Mineral water is exempt from allowable level. The exemptions are aesthetically based allowable levels and do not relate to a health concern.
Substance | Concentration in milligrams per liter |
Disinfection byproducts | |
Bromate | 0.010 |
Chlorite | 1.0 |
Haloacetic acids (five) (HAA5) | 0.060 |
Total Trihalomethanes (TTHM) | 0.080 |
Residual disinfectants | |
Chloramine | 4.0 (as Cl2) |
Chlorine | 4.0 (as Cl2) |
Chlorine dioxide | 0.8 (as ClO2) |
21 C.F.R. §165.110
For FEDERAL REGISTER citations affecting § 165.110 , see the List of CFR Sections Affected, which appears in the Finding Aids section of the printed volume and at www.fdsys.gov.