Tenn. Comp. R. & Regs. 0400-45-01-.12 - SECONDARY DRINKING WATER REGULATIONS
(1) The following
maximum contaminant levels are established to provide a water that is
aesthetically pleasing to the consumer. These standards will apply to all
community water systems and to those non-community water systems as may be
deemed necessary by the Department. Monitoring for these contaminants will be
set in the Monitoring Program for each system, but in no event less than once
every year for a surface and surface/ground supply and once every three years
for a ground water supply.
Maximum Contaminant Level
Contaminant | Milligrams per Liter (unless otherwise indicated) | |
(a) | Chloride | 250 |
(b) | Color | 15 (Color Units) |
(c) | Copper | 1 |
(d) | MBAS (Methyl Blue Active Substance) | 0.5 |
(e) | Iron | 0.3 |
(f) | Manganese | 0.05 |
(g) | Odor | 3 (Threshold Odor Number) |
(h) | pH | 6.5-8.5 |
(i) | Sulfate | 250 |
(j) | TDS (Total Dissolved Solids) | 500 |
(k) | Zinc | 5 |
(l) | Fluoride | 2 |
(m) | Aluminum | 0.2 |
(n) | Silver | 0.1 |
(2)
The system may apply for monitoring waivers from the monitoring frequency
specified in paragraph (1) of this rule. The Department may issue monitoring
waivers after considering: historical data, whether or not there have been
customer complaints concerning the contaminant to be waived, any corrective
action taken by the water supplier to correct the secondary contaminant
problem, and whether or not the system routinely monitors for the contaminant
as part of its treatment process monitoring program. The Department shall
determine the frequency, if any, a system must monitor after considering the
historical data available, the number and nature of customer complaints and
other factors that may affect the contaminant concentration, and specify the
decision in writing to the system.
Notes
Authority: T.C.A. ยงยง 68-221-701 et seq. and 4-5-201 et seq.
State regulations are updated quarterly; we currently have two versions available. Below is a comparison between our most recent version and the prior quarterly release. More comparison features will be added as we have more versions to compare.
No prior version found.