Guam § 53113 - Establishment of Interim Action Levels.

§ 53113. Establishment of Interim Action Levels.

(a) Guam EPA, upon identifying a contaminant in a public

water system that may present an unacceptable health risk to the

public, may establish interim action levels for contaminants for

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which maximum contamination levels have not been established

by the USEPA. Guam EPA may utilize federal drinking water

guidelines as well as guidelines issued by other states as interim

action levels when appropriate.

(b) Guam EPA shall establish an interim action level at a

level below which risks have been determined by the Guam EPA

to be acceptable. Risk assessment guidelines produced by the

USEPA as well as other states may be utilized to determine

health risks from a chemical contaminant. When establishing an

interim action level Guam EPA shall also consider water

treatment or alternate remedial actions.

(c) The adoption or modification of an interim action level

must be approved by the Guam EPA Board in a public meeting,

only after the completion of all of the following requirements:

(1) Guam EPA shall make available to the public for

review and comment a draft risk assessment document

describing the technical and scientific methods and

parameters utilized to determine the interim action level.

The draft risk assessment may reference risk assessments,

drinking water health advisories, or similar scientific

documentation issued by the USEPA or other states, when

appropriate.

(2) Guam EPA shall hold a public hearing for the

consideration, adoption, or modification to an interim action

level. Notice of a public hearing shall indicate the time,

date, and place for such hearing and shall be published at

least once a week for two (2) consecutive weeks in a

newspaper of general circulation, with the final notice being

published at least seven (7) days prior to the date of the

proposed hearing. The notice must state the availability and

location of the draft risk assessment document.

3) Guam EPA shall consider all comments received

relating to the risk assessment and revise an interim action

level if necessary. All comments received by the Guam EPA

shall be made available to the public for review.

(d) The Guam EPA, upon designating an interim action

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level for a contaminant, shall take such actions necessary to

protect the health of the public including, but not limited to,

requiring Public Water Systems to:

(1) issue guidance as may be necessary to protect the

health of persons (including travelers) who are or may be

users of a contaminated water supply system; and

(2) notify the public through the media of the

establishment of an interim action level.