130th MAINE LEGISLATURE
FIRST REGULAR SESSION-2021
Legislative Document No. 164
H.P. 120 House of Representatives, January 21, 2021
An Act To Establish Maximum Contaminant Levels under the
State's Drinking Water Rules for Certain Perflouroalkyl and
Polyflouroalkyl Substances
Received by the Clerk of the House on January 19, 2021. Referred to the Committee on
Health and Human Services pursuant to Joint Rule 308.2 and ordered printed pursuant to Joint
Rule 401.
ROBERT B. HUNT
Clerk
Presented by Representative TUCKER of Brunswick.
Printed on recycled paper
 1 Be it enacted by the People of the State of Maine as follows:
2 Sec. 1. 22 MRSA §2611, sub-§1-A is enacted to read:
3 1-A. Maximum contaminant levels for certain perfluoroalkyl and polyfluoroalkyl
4 substances. The primary drinking water rules adopted and enforced by the commissioner
5 pursuant to subsection 1 must specify for the following perfluoroalkyl and polyfluoroalkyl
6 substances a maximum contaminant level equivalent to 20 nanograms per liter, both
7 individually for each of the contaminants listed in this subsection and as the sum
8 concentration of 2 or more of those contaminants:
9 A. Perfluorooctane sulfonic acid, or "PFOS";
10 B. Perfluorooctanoic acid, or "PFOA";
11 C. Perfluorohexane sulfonic acid, or "PFHxS";
12 D. Perfluorononanoic acid, or "PFNA";
13 E. Perfluoroheptanoic acid, or "PFHpA"; and
14 F. Perfluorodecanoic acid, or "PFDA."
15 SUMMARY
16 This bill amends the law authorizing the adoption of state drinking water rules by the
17 Commissioner of Health and Human Services to require that those rules establish a
18 maximum contaminant level equivalent to 20 nanograms per liter for the following
19 perfluoroalkyl and polyfluoroalkyl substances, both individually for each substance and as
20 a sum concentration of 2 or more of those substances: perfluorooctane sulfonic acid;
21 perfluorooctanoic acid; perfluorohexane sulfonic acid; perfluorononanoic acid;
22 perfluoroheptanoic acid; and perfluorodecanoic acid.
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