Section 0400-45-01-.24 - SODIUM MONITORING(1) Suppliers of water for community public water systems shall collect and analyze one sample per plant at the entry point of the distribution system for the determination of sodium concentration levels. Samples must be collected and analyzed annually for systems utilizing surface water sources in whole or in part, and at least every three years for systems utilizing solely ground water sources. The minimum number of samples required to be taken by the system shall be based on the number of treatment plants used by the system, except that multiple wells drawing raw water from a single aquifer may be considered one treatment plant for determining the minimum number of samples. The supplier of water may be required by the Department to collect the analyze water samples for sodium more frequently in locations where the sodium content is variable.(2) The supplier of water shall report to the Department the results of the analyses for sodium within the first 10 days of the month following the month in which the sample results were received or within the first 10 days following the end of the required monitoring period whichever of these is first. If more than annual sampling is required, the supplier shall report the average sodium concentration within 10 days of the month following the month in which the analytical results of the last sample used for the annual average was received.(3) The supplier of water shall notify appropriate local and state public health officials of the sodium levels by written notice by direct mail within three months. A copy of each notice required to be provided by this paragraph shall be sent to the Department within 10 days of its issuance.(4) Analyses for sodium shall be performed by conducting analysis using inductively coupled plasma, EPA Method 200.7 or by using Standard Method 3111B.Tenn. Comp. R. & Regs. 0400-45-01-.24
Original rule filed August 1, 2012; effective October 30, 2012. Rule was previously numbered 1200-05-01.Authority: T.C.A. §§ 68-221-701 et seq. and 4-5-201 et seq.