Disinfection byproduct | MCL (mg/L) |
Bromate | 0.010 |
Chlorite | 1.0 |
Disinfection byproduct | Best available technology |
Bromate | Control of ozone treatment process to reduce production of bromate |
Chlorite | Control of treatment processes to reduce disinfectant demand and control of disinfection treatment processes to reduce disinfectant levels |
Disinfection byproduct | MCL (mg/L) |
Total trihalomethanes (TTHM) | 0.080 |
Haloacetic acids (five) (HAA5) | 0.060 |
Disinfection byproduct | Best available technology |
Total trihalomethanes (TTHM) and Haloacetic acids (five) (HAA5) | Enhanced coagulation or enhanced softening or GAC10, with chlorine as the primary and residual disinfectant |
Disinfection byproduct | MCL (mg/L) |
Total trihalomethanes (TTHM) | 0.080 |
Haloacetic acids (five) (HAA5) | 0.060 |
Disinfection byproduct | Best available technology |
Total trihalomethanes (TTHM) and Haloacetic acids (five) (HAA5) | Enhanced coagulation or enhanced softening, plus GAC10; or nanofiltration with a molecular weight cutoff [LESS THAN EQUAL TO]1000 Daltons; or GAC20 |
Disinfection byproduct | Best available technology |
Total trihalomethanes (TTHM) and Haloacetic acids (five) (HAA5) | Systems serving [GREATER THAN EQUAL TO]10,000: Improved distribution system and storage tank management to reduce residence time, plus the use of chloramines for disinfectant residual maintenance |
Systems serving [LESS THAN]10,000: Improved distribution system and storage tank management to reduce residence time |
40 C.F.R. §141.64