Hawaii Administrative Rules
Title 11 - DEPARTMENT OF HEALTH
Subtitle 1 - GENERAL DEPARTMENTAL PROVISIONS
Chapter 20 - RULES RELATING TO PUBLIC WATER SYSTEMS
Section 11-20-43 - Variances from the maximum contaminant levels for synthetic organic chemicals
Current through February, 2024
(a) The following is the best technology, treatment techniques, or other means available for achieving compliance with the MCLs for synthetic organic chemicals: Removal using packed tower aeration; removal using granular activated carbon (except for vinyl chloride).
(b) Community water systems and non-transient non-community water systems shall agree to install or use any treatment method identified in subsection (a), or both, as a condition for granting a variance except as provided in subsection (c). If, after the supplier of water's installation of the treatment method, the public water system cannot meet the MCL, that supplier of water shall be eligible for a variance under the provisions of section 11-20-20.
(c) If a supplier of water can demonstrate through comprehensive engineering assessments, which may include pilot plant studies, that the treatment methods identified in subsection (a) would only achieve a de minimis reduction in contaminants, the director may issue a schedule of compliance that requires the supplier of water being granted the variance to examine other treatment methods as a condition of obtaining the variance.
(d) If the director determines that a treatment method identified in subsection (c) is technically feasible, the director may require the supplier of water to install or use that treatment method, or both, in connection with a compliance schedule issued under the provisions of section 11-20-26. The director's determination shall be based upon studies by the supplier of water and other relevant information.
(e) The director may require a supplier of water to use bottled water or point-of-use devices or other means as a condition of granting a variance or an exemption from the requirements of section 11-20-4(d), to avoid an unreasonable risk to health.
(f) The supplier of water that uses bottled water as a condition for receiving a variance or an exemption from the requirements of section 11-20-4(d) is fully responsible for the provision of a minimum quantity of bottled water to every person via door-to-door bottled water delivery and shall meet the requirements in either paragraph (1) or (2) below:
(g) The supplier of water that uses point-of-use devices as a condition for obtaining a variance or an exemption from NPDWRs for volatile organic compounds shall meet the following requirements: