Dinoseb violations in Maine
6 active public water systems in Maine had a Dinoseb violation in the past three years. What Dinoseb is and why it matters.
Health effects: Dinoseb uncouples oxidative phosphorylation, disrupting cellular energy production. Chronic exposure causes reproductive toxicity: impaired sperm production in males and developmental harm, including birth defects, in developing fetuses. EPA has not established a formal carcinogenicity classification. Reproductive-age adults and pregnant women face the greatest risk.
Systems with a Dinoseb violation
Latest quarter first, then largest first| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Searsport Water District Searsport · Waldo County |
2,763 | 1 | 0 | |
|
Washburn Water & Sewer District Washburn · Aroostook County |
688 | 3 | 1 | |
|
Pine Spring Roads & Water Shapleigh · York County |
220 | 5 | 1 | |
|
Loring Woods Park Limestone · Aroostook County |
55 | 2 | 0 | |
|
Vigneaults Mobile Home Park Alton · Penobscot County |
53 | 6 | 2 | |
|
South Penobscot Water Association Penobscot · Hancock County |
38 | 3 | 0 |
About this data
A system is counted once if any of its violations in the past three years involved Dinoseb, including monitoring and reporting lapses. Rules violated and status in the table are for the whole system, not Dinoseb alone.
Source: the U.S. EPA's Enforcement and Compliance History Online system (ECHO), which publishes the federal Safe Drinking Water Information System. EPA's terms and values are shown as published. The Maine records are from EPA's data refresh of Oct 7, 2026; EPA refreshes this data quarterly, and states report to EPA with a lag of three to six months, so the newest violations may not appear yet.