Title 42, The Public Health and WelfareRelease 119-110

§300j–19 Algal Toxin Risk Assessment and Management

Title 42 › CHAPTER 6A — PUBLIC HEALTH SERVICE › SUBCHAPTER XII — SAFETY OF PUBLIC WATER SYSTEMS › Part E — General Provisions › § 300j–19

Last updated Sep 22, 2026|Official source

Summary

The EPA Administrator must, within 90 days after August 7, 2015, send Congress a plan to assess and manage risks from algal toxins in drinking water from public water systems. The plan must spell out steps and a timeline to evaluate health risks; make and keep an updated list of algal toxins that could harm people at likely exposure levels; summarize known health effects of listed toxins and what causes toxic algal blooms; decide for each listed toxin whether to issue health advisories, recommend testing methods, and recommend how often to monitor; recommend practical treatment, equipment, and source-water protection options; and work with and help affected States and public water systems. The EPA must update and resubmit the plan to Congress as needed. The EPA must also identify gaps in what we know about health effects and testing or monitoring methods. It must consult with other federal agencies, States, water system operators, multinational groups, foreign governments, researchers, and companies, and collect and publish federal information about cyanobacteria, algal toxins, and harmful algal blooms. The EPA must follow the scientific rules in section 300g–1(b)(3)(A) when doing this. Feasible — see the meaning given in section 300g–1(b)(4)(D).

Full Legal Text

Title 42, §300j–19

The Public Health and Welfare, Source: USLM XML via OLRC

(a)Strategic plan
(1)Development
Not later than 90 days after August 7, 2015, the Administrator shall develop and submit to Congress a strategic plan for assessing and managing risks associated with algal toxins in drinking water provided by public water systems. The strategic plan shall include steps and timelines to—
(A)evaluate the risk to human health from drinking water provided by public water systems contaminated with algal toxins;
(B)establish, publish, and update a comprehensive list of algal toxins which the Administrator determines may have an adverse effect on human health when present in drinking water provided by public water systems, taking into account likely exposure levels;
(C)summarize—
(i)the known adverse human health effects of algal toxins included on the list published under subparagraph (B) when present in drinking water provided by public water systems; and
(ii)factors that cause toxin-producing cyanobacteria and algae to proliferate and express toxins;
(D)with respect to algal toxins included on the list published under subparagraph (B), determine whether to—
(i)publish health advisories pursuant to section 300g–1(b)(1)(F) of this title for such algal toxins in drinking water provided by public water systems;
(ii)establish guidance regarding feasible analytical methods to quantify the presence of algal toxins; and
(iii)establish guidance regarding the frequency of monitoring necessary to determine if such algal toxins are present in drinking water provided by public water systems;
(E)recommend feasible treatment options, including procedures, equipment, and source water protection practices, to mitigate any adverse public health effects of algal toxins included on the list published under subparagraph (B); and
(F)enter into cooperative agreements with, and provide technical assistance to, affected States and public water systems, as identified by the Administrator, for the purpose of managing risks associated with algal toxins included on the list published under subparagraph (B).
(2)Updates
The Administrator shall, as appropriate, update and submit to Congress the strategic plan developed under paragraph (1).
(b)Information coordination
In carrying out this section the Administrator shall—
(1)identify gaps in the Agency’s understanding of algal toxins, including—
(A)the human health effects of algal toxins included on the list published under subsection (a)(1)(B); and
(B)methods and means of testing and monitoring for the presence of harmful algal toxins in source water of, or drinking water provided by, public water systems;
(2)as appropriate, consult with—
(A)other Federal agencies that—
(i)examine or analyze cyanobacteria or algal toxins; or
(ii)address public health concerns related to harmful algal blooms;
(B)States;
(C)operators of public water systems;
(D)multinational agencies;
(E)foreign governments;
(F)research and academic institutions; and
(G)companies that provide relevant drinking water treatment options; and
(3)assemble and publish information from each Federal agency that has—
(A)examined or analyzed cyanobacteria or algal toxins; or
(B)addressed public health concerns related to harmful algal blooms.
(c)Use of science
The Administrator shall carry out this section in accordance with the requirements described in section 300g–1(b)(3)(A) of this title, as applicable.
(d)Feasible
For purposes of this section, the term “feasible” has the meaning given such term in section 300g–1(b)(4)(D) of this title.

Reference

Citations & Metadata

Citation

42 U.S.C. § 300j–19

Title 42, The Public Health and Welfare

Last Updated

Sep 22, 2026

Release point: 119-110