Polychlorinated Biphenyls (PCBs) violations in Arizona
4 active public water systems in Arizona had a Polychlorinated Biphenyls (PCBs) violation in the past three years, 1 of them in the latest quarter of EPA's data. What Polychlorinated Biphenyls (PCBs) is and why it matters.
Systems with a Polychlorinated Biphenyls (PCBs) violation
Latest quarter first, then largest first| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Scua Bylas Bylas · County |
3,160 | 12 | 3 | |
|
Scua Upper Seven Mile County |
8,478 | 12 | 3 | |
|
Arizona Village County |
3,211 | 10 | 2 | |
|
Lower Moencopi Spring Source Lower Moencopi · County |
465 | 12 | 3 |
About this data
A system is counted once if any of its violations in the past three years involved Polychlorinated Biphenyls (PCBs), including monitoring and reporting lapses. Rules violated and status in the table are for the whole system, not Polychlorinated Biphenyls (PCBs) 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 Arizona 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.