Tapcensus

2,4,5-TP (Silvex) violations in Maine

6 active public water systems in Maine had a 2,4,5-TP (Silvex) violation in the past three years. What 2,4,5-TP (Silvex) is and why it matters.

Health effects: Chronic exposure to Silvex is associated with liver damage. EPA classifies it as a possible human carcinogen (Group C). The dioxin contamination historically associated with its production added to concern about its carcinogenicity, though the MCL applies to Silvex itself. Long-term exposure above the MCL is the primary concern.

Systems with a 2,4,5-TP (Silvex) violation

Latest quarter first, then largest first
SystemServesStatusRules violated, 3 yrUnresolved
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 2,4,5-TP (Silvex), including monitoring and reporting lapses. Rules violated and status in the table are for the whole system, not 2,4,5-TP (Silvex) 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.