Styrene violations in Alaska
102 active public water systems in Alaska had a Styrene violation in the past three years, 5 of them in the latest quarter of EPA's data. What Styrene is and why it matters.
Health effects: Chronic exposure to styrene is associated with liver, kidney, and nervous system effects. EPA classifies it as a possible human carcinogen (Group C) based on limited animal evidence. Short-term exposure can cause irritation of the eyes, nose, and throat. Long-term exposure above the MCL is the primary concern for public water system violations.
Systems with a Styrene violation
Latest quarter first, then largest first| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Emmonak Water System Emmonak · County |
820 | 10 | 3 | |
|
Silver Bay Seafoods False Pass False Pass · Aleutians East Borough County |
470 | 7 | 0 | |
|
Minto Community Water System Minto · Yukon-Koyukuk Census Area County |
205 | 10 | 0 | |
|
Forest Park TC Chugiak · Anchorage Municipality County |
175 | 12 | 3 | |
|
L&psd Port Alsworth School Port Alsworth · Lake and Peninsula Borough County |
80 | 5 | 0 | |
|
Denali Main / Front Country Denali Park · Denali Borough County |
4,122 | 7 | 1 | |
|
Hoonah PWS Hoonah · County |
980 | 7 | 0 | |
|
Mountain Village Water System Mountain Village · County |
887 | 11 | 2 | |
|
Kwethluk New Piped Water System Kwethluk · Bethel Census Area County |
760 | 11 | 2 | |
|
Gambell Water System Gambell · Nome Census Area County |
669 | 10 | 2 | |
|
Whittier Water System Whittier · County |
650 | 1 | 0 | |
|
Kipnuk Water System Kipnuk · Bethel Census Area County |
639 | 8 | 0 | |
|
Kotlik Water System Kotlik · County |
617 | 9 | 1 | |
|
Buckland Water System Buckland · Northwest Arctic Borough County |
600 | 11 | 1 | |
|
Nsbu Wainwright Wainwright · North Slope Borough County |
600 | 3 | 0 | |
|
Alakanuk Water System Alakanuk · County |
570 | 14 | 2 | |
|
New Stuyahok Water System New Stuyahok · Dillingham Census Area County |
566 | 8 | 2 | |
|
Chefornak Water System Chefornak · Bethel Census Area County |
513 | 8 | 2 | |
|
Salcha Community Watering Point Salcha · Fairbanks North Star Borough County |
508 | 7 | 4 | |
|
Noatak Community Water System Noatak · Northwest Arctic Borough County |
485 | 6 | 1 | |
|
Msbsd Mat-Su Central School Palmer · Matanuska-Susitna Borough County |
480 | 1 | 0 | |
|
Thorne Bay, City of Thorne Bay · County |
470 | 6 | 1 | |
|
The Crossing @ Birchwood Chugiak · Anchorage Municipality County |
466 | 1 | 0 | |
|
Kiana Water System Kiana · Northwest Arctic Borough County |
455 | 7 | 2 | |
|
Angoon Public Water Angoon · County |
450 | 13 | 2 | |
|
Hydaburg Hydaburg · County |
415 | 10 | 3 | |
|
Kwigillingok Washeteria Kwigillingok · Bethel Census Area County |
400 | 10 | 0 | |
|
Lksd Tununak Paul Albert HS Tununak · Bethel Census Area County |
385 | 9 | 0 | |
|
Tuluksak Water System Tuluksak · Bethel Census Area County |
373 | 9 | 0 | |
|
Glennallen Water Works Glennallen · County |
365 | 3 | 0 | |
|
Nikolaevsk Community Water System Nikolaevsk · Kenai Peninsula Borough County |
360 | 6 | 0 | |
|
Akiak Community Water System Akiak · Bethel Census Area County |
346 | 6 | 0 | |
|
Napakiak Washeteria Napakiak · Bethel Census Area County |
336 | 6 | 1 | |
|
Atmautluak Water System Atmautluak · Bethel Census Area County |
311 | 8 | 1 | |
|
Palmer Seventh Day Adventist Church Palmer · Matanuska-Susitna Borough County |
307 | 2 | 1 | |
|
Shungnak Water System Shungnak · Northwest Arctic Borough County |
299 | 8 | 1 | |
|
Manokotak Water System Manokotak · Dillingham Census Area County |
293 | 8 | 2 | |
|
Nanwalek Nanwalek · Kenai Peninsula Borough County |
281 | 11 | 2 | |
|
Eek Water System Eek · Bethel Census Area County |
280 | 9 | 0 | |
|
Meadow Lakes Center Wasilla · Matanuska-Susitna Borough County |
276 | 3 | 1 | |
|
Larsen Bay Water System Larsen Bay · Kodiak Island Borough County |
271 | 11 | 0 | |
|
Too'gha INC in Tanana Tanana · Yukon-Koyukuk Census Area County |
271 | 9 | 1 | |
|
AK Gateway SD Tok School Tok · Southeast Fairbanks Census Area County |
261 | 2 | 0 | |
|
Lksd Nightmute HS & Elem Nightmute · Bethel Census Area County |
259 | 7 | 0 | |
|
Old Harbor Old Harbor · Kodiak Island Borough County |
246 | 9 | 0 | |
|
Nulato River Well Nulato · Yukon-Koyukuk Census Area County |
245 | 4 | 0 | |
|
Pelican Utilities Pelican · County |
230 | 5 | 0 | |
|
Nunam Iqua Water System Nunam Iqua · Bethel Census Area County |
213 | 11 | 1 | |
|
Grayling Water System Grayling · Yukon-Koyukuk Census Area County |
207 | 13 | 2 | |
|
Nondalton Nondalton · Lake and Peninsula Borough County |
205 | 10 | 2 |
About this data
A system is counted once if any of its violations in the past three years involved Styrene, including monitoring and reporting lapses. Rules violated and status in the table are for the whole system, not Styrene 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 Alaska 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. Retrieved from ECHO on Oct 11, 2026.