Tapcensus

Di(2-ethylhexyl) Phthalate violations in Wisconsin

17 active public water systems in Wisconsin had a Di(2-ethylhexyl) Phthalate violation in the past three years, 3 of them in the latest quarter of EPA's data. What Di(2-ethylhexyl) Phthalate is and why it matters.

Health effects: Chronic exposure to DEHP is associated with reproductive and developmental toxicity — it acts as an endocrine disruptor and can interfere with hormone signaling. EPA classifies it as a probable human carcinogen (Group B2) based on animal liver tumor data. Developing fetuses, infants, and reproductive-age adults are most susceptible to its hormonal effects.

Systems with a Di(2-ethylhexyl) Phthalate violation

Latest quarter first, then largest first
SystemServesStatusRules violated, 3 yrUnresolved
Hartje Lumber
La Valle · Sauk County
75 1 0
Knollcrest
Delafield · Waukesha County
66 1 0
Prototek Digital Manufacturing (madison) LLC
Blue Mounds · Dane County
40 5 1
Augusta Waterworks
Augusta · Eau Claire County
1,450 8 0
Sunnyside Elementary Sch
Sobieski · Oconto County
575 1 0
Poynette Mobile Estates
Poynette · Columbia County
150 4 1
Norris INC
Mukwonago · Waukesha County
141 5 4
Winkler School
Burlington · Racine County
124 3 1
Dodge Sanitary Dist 1
Dodge · Trempealeau County
120 5 1
Mequon Office Complex 11516 Bldg
Mequon · Ozaukee County
100 1 0
Edgewood Mobile Home Park
Genoa · Vernon County
90 6 1
Bridge for Community Life Brakke
Hudson · St. Croix County
70 2 0
Hillside
County
63 3 0
Van Horn Nissan Volkswagen Hyundai
Sheboygan · Sheboygan County
59 1 0
Pine Haven Estates
Doylestown · Columbia County
45 2 0
Sand Hill
County
38 2 0
52nd Ave Water Group
Kenosha · Kenosha County
35 8 1
About this data

A system is counted once if any of its violations in the past three years involved Di(2-ethylhexyl) Phthalate, including monitoring and reporting lapses. Rules violated and status in the table are for the whole system, not Di(2-ethylhexyl) Phthalate 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 Wisconsin 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.