Ariz. Admin. Code § 18-4-218

Current through Register Vol. 30, No. 49, December 6, 2024

Section R18-4-218 - Criteria and Procedures for Public Water Systems Using Point-of-entry or Point-of-use Treatment Devices

A. A water supplier may use a point-of-entry (POE) or point-of-use (POU) treatment technology to achieve compliance with a MCL or treatment technique if the water supplier meets the requirements of this Section.

B. A public water system may use a POE or POU treatment device to achieve compliance with a MCL, if the treatment device:

1. Is not used to achieve compliance with an MCL or treatment technique for a microbial contaminant or an indicator for a microbial contaminant, in accordance with 42 U.S.C. 300g - 1(b)(4)(E)(ii) (2007);

2. Is listed in 40 CFR 141 as an acceptable compliance technology for the applicable contaminant;

3. Is certified against the applicable NSF/ANSI Standards;

4. Is owned, controlled and maintained by a public water system or by a person under contract with the public water system to ensure proper operation, maintenance, and compliance with MCLs or treatment techniques; and

5. Is equipped with mechanical warnings to ensure that customers are automatically notified of recommended system maintenance and or operational problems. This performance indication device shall provide notice to the end user at a defined moment in time without shutting off the POE or POU device.

C. Prior to installing a POE or POU treatment device, a public water system shall obtain the Department's written approval of a POE or POU operation and maintenance (O & M) plan. A public water system shall submit an O & M plan to the Department that ensures proper long-term operation, maintenance, and monitoring of the POE or POU treatment devices. An O & M plan shall ensure that:

1. The POE or POU treatment device provides health protection equivalent to the health protection provided by centralized water treatment. "Equivalent" means that water treated by the POE or POU treatment device meets all national primary drinking water regulations.

2. A residential building, or a nonresidential building that uses water for human consumption, that is connected to the public water system has a POE or POU treatment device that is installed, operated, maintained, and monitored in a manner that assures continuous compliance with the MCLs, treatment techniques, and other requirements of this Chapter.

3. Multi-unit residential and nonresidential buildings utilizing POU treatment devices to achieve compliance with this Chapter have a sufficient number of POU devices installed to provide adequate potable water for all residents, employees, and customers.

4. The rights and responsibilities of persons served by the public water system are conveyed with the title upon the sale of property containing a POU treatment device, including but not limited to the following:

a. The public water system owns and is responsible for maintaining a POU treatment device that is installed to meet the requirements of this Section; and

b. Persons served by public water systems must grant public water system employees reasonable access to POU treatment devices, so that the devices can be properly maintained. Public water systems may discontinue water service to a customer who refuses to allow public water system employees to enter the customer's home or business to inspect and maintain POU treatment devices.

Ariz. Admin. Code § R18-4-218

Adopted effective April 28, 1995 (Supp. 95-2). Amended effective June 3, 1998 (Supp. 98-3). Amended by final rulemaking at 8 A.A.R. 973, effective February 19, 2002 (Supp. 02-1). Section R18-4-218 repealed; new Section renumbered from R18-4-222 and amended by final rulemaking at 14 A.A.R. 2978, effective August 30, 2008 (Supp. 08-3).