PURPOSE: This rule lists manuals containing acceptable analysis procedures for determination of contaminant levels.

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. (1) Inorganic and Secondary Contaminants. Unless substitute methods are approved by the department, analysis shall be conducted in accordance with the inorganic and secondary contaminant analytical methods in paragraphs 40 CFR 141.23(k)(l) and 40 CFR 143.4(b) of the July 1, 2003 Code of Federal Regulations, which are incorporated by reference in this rule.
2. (2) Organic Contaminants. Unless substitute methods are approved by the department, analysis shall be conducted in accordance with the organic contaminant analytical methods in paragraph 40 CFR 141.24(e) of the July 1, 2003 Code of Federal Regulations, which is incorporated by reference in this rule.
3. (3) Microbiological Contaminants and Turbidity. Unless substitute methods are approved by the department, analysis shall be conducted in accordance with the microbiological contaiminant and turbidity analytical methods in 40 CFR 141.21(f) and 40 CFR 141.74(a)(1) of the July 1, 2003 Code of Federal Regulations, which are incorporated by reference.
4. (4) Radiological Contaminants. Unless substitute methods are approved by the department, analysis shall be conducted in accordance with the radiological contaminant analytical methods in paragraphs 40 CFR 141.25(a) and (b) of the July 1, 2003 Code of Federal Regulations, which are incorporated by reference.
5. (5) Disinfection By-Products, Residual Disinfectant Concentrations, and Disinfection By-Product Precursors. Unless substitute methods are approved by the department, analysis shall be conducted in accordance with the disinfection by-product, residual disinfectant concentration, and disinfection byproduct precursor analytical methods in 40 CFR 141.74(a)(2) and 40 CFR 141.131 of the July 1, 2003 Code of Federal Regulations, which are incorporated by reference.

6. (6) Sample collection for the contaminants referenced in this rule must be conducted using the sample preservation, container and maximum holding time procedures specified in the following procedures, which are incorporated by reference, or in accordance with procedures contained in the appropriate analytical method.

   1. (A) Inorganic contaminant sample collection procedures in 40 CFR 141.23(k)(2) of the July 1, 2003 Code of Federal Regulations are incorporated by reference.
   2. (B) Total trihalomethane sample collection procedures in 40 CFR 141.30(e) of the July 1, 2003 Code of Federal Regulations are incorporated by reference.

7. (7) The department may reduce the total number of samples a system must analyze by allowing the use of compositing. Compositing shall be conducted according to the following procedures incorporated by reference.

   1. (A) Sample compositing procedures for inorganic contaminants in 40 CFR 141.23(a)(4) of the July 1, 2003 Code of Federal Regulations are incorporated by reference.
   2. (B) Sample compositing procedures for volatile organic contaminants in 40 CFR 141.24(f)(14) of the July 1, 2003 Code of Federal Regulations are incorporated by reference.
   3. (C) Sample compositing procedures for synthetic organic contaminants in 40 CFR 141.24(h)(10) of the July 1, 2003 Code of Federal Regulations are incorporated by reference.
   4. (D) Sample compositing procedures for radiological contaminants in 40 CFR 141.26(a)(4) of the July 1, 2003 Code of Federal Regulations are incorporated by reference.
   5. (E) Sample compositing procedures for lead and copper in 40 CFR 141.88(a)(1)(iv) Code of Federal Regulations are incorporated by reference. 10 CSR 60-5

8. (8) Detection Limits.

   1. (A) Detection limits for inorganic contaminants in 40 CFR 141.23(a)(4)(i) of the July 1, 2003 Code of Federal Regulations are incorporated by reference.
   2. (B) Practical Quantitation Levels (PQL) for lead and copper in 40 CFR 141.89(a)(1)(ii)(A) and (B) of the July 1, 2003 Code of Federal Regulations are incorporated by reference.
   3. (C) Detection limit for volatile organic contaminants in 40 CFR 141.24(f)(7) of the July 1, 2003 Code of Federal Regulations are incorporated by reference.
   4. (D) Detection limits for synthetic organic contaminants in 40 CFR 141.24(h)(13)(ii) and 141.24(h)(18) of the July 1, 2003 Code of Federal Regulations are incorporated by reference.
   5. (E) Detection limits for radiological contaminants in 40 CFR 141.25(c) of the July 1, 2003 Code of Federal Regulations are incorporated by reference.

AUTHORITY: sections 640.100, RSMo Supp. 2003 and 640.125.1, RSMo 2000.* Original rule filed May 4, 1979, effective Sept. 14, 1979. Amended: Filed April 14, 1981, effective Oct. 11, 1981. Amended: Filed June 2, 1988, effective Aug. 31, 1988. Rescinded and readopted: Filed Dec. 4, 1990, effective July 8, 1991. Rescinded and readopted: Filed March 31, 1992, effective Dec. 3, 1992. Amended: Filed Aug. 4, 1992, effective May 6, 1993. Amended: Filed May 4, 1993, effective Jan. 13, 1994. Amended: Filed Feb. 1, 1996, effective Oct. 30, 1996. Amended: Filed July 1, 1999, effective March 30, 2000. Amended: Filed Dec. 15, 1999, effective Sept. 30, 2000. Amended: Filed April 15, 2003, effective Jan. 30, 2004. Amended: Filed Feb. 17, 2004, effective Nov. 30, 2004.

*Original authority: 640.100, RSMo 1939, amended 1978, 1981, 1982, 1988, 1989, 1992, 1993, 1995, 1996, 1998, 1999, 2002; and 640.125, RSMo 1978, amended 1998.