Operational Monitoring

PURPOSE: This rule establishes criteria for operation and operational monitoring. PUBLISHER’S NOTE: The secretary of state has determined that the publication of the entire text of the material which is incorporated by reference as a portion of this rule would be unduly cumbersome or expensive. This material as incorporated by reference in this rule shall be maintained by the agency at its headquarters and shall be made available to the public for inspection and copying at no more than the actual cost of reproduction. This note applies only to the reference material. The entire text of the rule is printed here. (1) Public water systems utilizing any treatment process must perform sufficient analyses to maintain control of the treatment process, using methods as required by 10 CSR 60-5.010 and as acceptable to the department. (2) Automatic instrumentation may be used if properly installed, maintained and periodically calibrated against known standards prepared in accordance with Standard Methods for the Examination of Water and Wastewater 1992, 18th edition, or Methods for Chemical Analysis of Water and Wastes, published in March 1983 by the Environmental Protection Agency’s (MCAWW, Section 9.3, EPA/600/479/020, Cincinnati, OH). This document is incorporated by reference without any later amendments or modifications. To obtain a copy, contact the U.S. Government Printing Office at 732 North Capitol Street NW, Washington, D.C., 20401, toll free at (866)512-1800 or by visiting https://bookstore.gpo.gov. (3) Sufficient analyses must be done to assure control of water quality, the following requirements notwithstanding. Continuous monitoring and recording may be used for any operational analysis instead of grab sampling provided that the requirements of section (2) are met. For those analyses where continuous monitoring is required, if there is a failure in the continuous monitoring equipment, grab sampling every four (4) hours of operation may be conducted in lieu of continuous monitoring but for no more than five (5) working days following the failure of the equipment. 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(5) Every supplier of water to a public water system must disinfect all newly constructed or repaired water distribution mains, finished water storage facilities or wells by methods acceptable to the department before being placed in or returned to service. (6) All finished water reservoirs must be covered by a permanent, protective material, adequately vented with properly screened openings. (7) Chemicals, materials and protective coatings used in public water systems must be acceptable to the department. (8) Public water systems must maintain a minimum positive pressure of twenty pounds per square inch (20 psi) throughout the distribution system under all normal operating conditions. (9) A supplier of water that adds fluoride to the water system must submit one (1) sample per quarter for analyses to an approved laboratory. AUTHORITY: section 640.100, RSMo 2016.* Original rule filed May 4, 1979, effective Sept. 14, 1979. Amended: Filed April 14, 1981, effective Oct. 11, 1981. Amended: Filed July 12, 1991, effective Feb. 6, 1992. Amended: Filed Feb. 1, 1996, effective Oct. 30, 1996. Amended: Filed June 13, 2018, effective Feb. 28, 2019. *Original authority: 640.100, RSMo 1939, amended 1978, 1981, 1982, 1988, 1989, 1992, 1993, 1995, 1996, 1998, 1999, 2002, 2006, 2012, 2014.