Ariz. Admin. Code § 18-4-114

Current through Register Vol. 30, No. 50, December 13, 2024

Section R18-4-114 - Disinfectant Residuals, Disinfection Byproducts, and Disinfection Byproduct Precursors - 40 Cfr 141, Subpart L

A.40 CFR 141, Subpart L ( 40 CFR 141.130 through 141.135 ), is incorporated by reference as of the date specified in R18-4-102, subject to the modifications specified in this Section; this incorporation does not include any later amendments or editions.

B.40 CFR 141.131 is not incorporated by reference.

C. In order to demonstrate compliance with the requirements of this Chapter:

1. Public water systems shall use analytical methods approved by EPA and the Arizona Department of Health Services for monitoring under this Chapter; and

2. Analyses of drinking water samples shall be conducted by laboratories that have been certified by EPA or the Arizona Department of Health Services.

D. A party approved by the Department shall measure daily chlorite samples at the entrance to the distribution system.

E. A public water system may measure residual disinfectant concentrations for chlorine, chloramines, and chlorine dioxide by using N,N-diethyl-p-phenylenediamine (DPD) colorimetric test kits. A party approved by the Department shall measure residual disinfectant concentration.

Ariz. Admin. Code § R18-4-114

Former Section R9-20-519 repealed, new Section R9-20-519 adopted effective November 1, 1979 (Supp. 79-6). Former Section R9-20-519 amended, renumbered as Section R9-20-514, then renumbered as Section R18-4-114 effective October 23, 1987 (Supp. 87-4). R18-4-114 recodified to R18-5-114 (Supp. 95-2). New Section adopted effective April 28, 1995 (Supp. 95-2). Section R18-4-114 renumbered to R18-4-202; new Section made by final rulemaking at 14 A.A.R. 2978, effective August 30, 2008 (Supp. 08-3).