Idaho Administrative Code
Title IDAPA 58 - Environmental Quality, Department of
Rule 58.01.08 - IDAHO RULES FOR PUBLIC DRINKING WATER SYSTEMS
Section 58.01.08.450 - USE OF NON-CENTRALIZED TREATMENT DEVICES

Universal Citation: ID Admin Code 58.01.08.450

Current through August 31, 2023

01. Criteria and Procedures for Public Water Systems Using Point of Entry Devices. 40 CFR 141.100 is herein incorporated by reference. (3-24-22)

02. Point of Use (POU) Treatment Devices. (3-24-22)

a. A public water system may use point of use (POU) treatment in order to achieve compliance with certain maximum contaminant levels (MCL) or treatment techniques, in accordance with Subsection 450.02.b., when the following conditions are met: (3-24-22)
i. A program for long-term operation, maintenance, and monitoring of the POU treatment system is approved by the Department, pursuant to Section 450.02.d. (3-24-22)

ii. The public water system or a vendor of POU treatment devices under contract with the public water system shall own, control, and maintain the POU treatment system to ensure proper operation and maintenance and compliance with the MCL or treatment technique. (3-24-22)

iii. Each POU treatment device is equipped with a mechanical warning mechanism to ensure that customers are automatically notified of operational problems. (3-24-22)

iv. The POU treatment device must be certified by an accredited American National Standards Institute (ANSI) certification body to meet applicable ANSI/National Sanitation Foundation (NSF) Standards. (3-24-22)

b. POU treatment devices shall not be used to achieve compliance with a MCL or treatment technique requirement for a microbial contaminant or an indicator of a microbial contaminant. Community water systems may not use POU treatment devices to achieve compliance with a nitrate MCL. (3-24-22)

c. The Department will waive the plan and specification requirements of Section 504 relating to material modifications for the following systems only to the extent that the material modification proposed is limited to the installation or use of a POU treatment device(s): (3-24-22)
i. Community water systems serving two hundred (200) or fewer service connections. (3-24-22)

ii. Non-transient non-community water systems. (3-24-22)

iii. Transient non-community water systems. (3-24-22)

iv. Community water systems serving more than two hundred (200) service connections if approved by the Department through the waiver process outlined in Subsection 005.01.a. (3-24-22)

d. A public water system must obtain written approval by the Department before installation of a POU treatment device for the purpose of achieving compliance with a MCL or treatment technique. The public water system shall submit the following documentation for approval to the Department: (3-24-22)
i. Information identifying the public water system name and number, total number of service connections, contaminant(s) to be treated, type of POU treatment device to be installed, manufacturer and model number of the POU treatment device, type and function of the mechanical warning mechanism (performance indicator) on the POU treatment device, certification verification for ANSI/NSF, installer qualifications, and a proposed date for installation of the POU treatment device(s). (3-24-22)

ii. The manufacturer's specifications for the POU treatment device including demonstration that the POU treatment device is suited for the water chemistry of the public water system and contaminant(s) of concern and is of sufficient design and capacity for the particular application. (3-24-22)

iii. Information relating to how other drinking water dispensing units, such as instant hot water dispensers and refrigerator water and ice dispensers, whose primary function is to provide drinking water, will be provided with treated water. If water is transported from a POU treatment device to another drinking water dispensing unit, the conducting tube shall be of non-reactive material. (3-24-22)

iv. For non-transient non-community water systems and transient non-community water systems, demonstration that the drinking water dispensing units are located in areas adequate to protect public health. (3-24-22)

v. Demonstration that all POU treatment devices are owned, controlled, and maintained by the public water system or by a vendor of POU treatment devices under contract with the public water system. (3-24-22)

vi. A sampling plan identifying the location of all service connections and demonstrating how the system will ensure that all POU treatment devices are sampled for compliance with the contaminant(s) being treated during every compliance period or at a frequency designated by the Department. (3-24-22)

vii. Documentation that a customer at each service connection has agreed to installation and use of a POU treatment device and has granted access for installation, maintenance, and sampling. (3-24-22)

viii. A plan that describes how the public water system will address any non-compliance with Subsection 450.02.d.vii. (3-24-22)

ix. A maintenance plan that demonstrates how on-going maintenance activities will be performed and on what frequency, including: frequency of treatment media replacements, frequency of POU treatment device replacements, periodic verification that the mechanical warning device is functional, schedule of planned maintenance activities, plan of how the system will address unscheduled maintenance problems, and a plan and method of waste disposal. (3-24-22)

x. Documentation that the system meets the current requirements for a certified operator pursuant to Section 554. (3-24-22)

xi. A plan for on-going education and outreach to the customers of the public water system, including rental customers, on POU treatment and health effects of the contaminant(s) of concern. (3-24-22)

xii. A plan for how the system will ensure real estate disclosures for the POU treatment system. (3-24-22)

xiii. A statement of recognition that failure to maintain compliance with the MCL, or the failure to operate and maintain compliance with a POU treatment system as approved by the Department, may necessitate installation of centralized treatment. (3-24-22)

e. Within thirty (30) days of installing the approved POU treatment system, the public water system shall notify the Department in writing that the POU treatment system was installed as approved by the Department. (3-24-22)

f. Within thirty (30) days of installing the approved POU treatment system, the public water system shall submit samples from each POU treatment device to a certified laboratory for the contaminant(s) being treated by the POU treatment device. The samples shall be used to demonstrate initial compliance with the MCL. (3-24-22)

g. The water system owner or operator must maintain records for a POU treatment system. Records shall be submitted to the Department at a frequency and in a format specified by the Department. Records to maintain shall include: (3-24-22)
i. Requirements of Subsection 450.02.d.; (3-24-22)

ii. All sampling performed on the POU treatment devices; (3-24-22)

iii. Maintenance logs and schedules; (3-24-22)

iv. Log of installed units; and (3-24-22)

v. Contracts, lease agreements, or other legal documents with vendors and consumers. (3-24-22)

03. Use of Bottled Water. 40 CFR 141.101 is herein incorporated by reference. (3-24-22)

Disclaimer: These regulations may not be the most recent version. Idaho may have more current or accurate information. We make no warranties or guarantees about the accuracy, completeness, or adequacy of the information contained on this site or the information linked to on the state site. Please check official sources.
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