Lead and Copper Rule Revisions (LCRR) violations in Arizona
126 active public water systems in Arizona had a Lead and Copper Rule Revisions (LCRR) violation in the past three years, 128 of them in the latest quarter of EPA's data. What Lead and Copper Rule Revisions (LCRR) is and why it matters.
Systems with a Lead and Copper Rule Revisions (LCRR) violation
Latest quarter first, then largest first| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Prescott City of Prescott · Yavapai County |
42,217 | 4 | 0 | |
|
Epcor Anthem Anthem · Maricopa County |
23,826 | 3 | 0 | |
|
Gric Dpw Wild Horse Pass Wildhorse Pass Casino, St. Johns Komatke · County |
22,795 | 2 | 0 | |
|
Nogales City of Nogales · Santa Cruz County |
22,000 | 7 | 0 | |
|
Pima Utilities Chandler · Maricopa County |
20,000 | 7 | 3 | |
|
Gric Dpw Sacaton Sacaton, Sacaton Flats, Upper San Tan and 1 more · County |
5,307 | 3 | 0 | |
|
Holbrook City of Holbrook · Navajo County |
4,833 | 6 | 2 | |
|
Epcor Lake Havasu Lake Havasu City · Mohave County |
4,712 | 5 | 0 | |
|
Eagar Town of Eagar · Apache County |
4,590 | 5 | 1 | |
|
Golden Shores Water Company Topock · Mohave County |
3,970 | 3 | 1 | |
|
Polacca First Mesa Consolidated Villages · County |
3,890 | 6 | 4 | |
|
Epcor Willow Valley/king Street Mohave Valley · Mohave County |
3,566 | 2 | 0 | |
|
ST Johns City of Saint Johns · Apache County |
3,500 | 5 | 1 | |
|
Tucson Medical Center Tucson · Pima County |
3,000 | 4 | 1 | |
|
Hondah Casino County |
2,926 | 6 | 1 | |
|
Chandler Heights Citrus Irrigation Dist Chandler · Maricopa County |
2,620 | 3 | 1 | |
|
Gric Dpw Casa Blanca_bapchule Casa Blanca, Bapchule, Wet Camp and 2 more · County |
2,603 | 2 | 0 | |
|
Wmatua Cibecue Cibecue · County |
2,590 | 3 | 2 | |
|
Gric Dpw Stotonic Stotonic, Goodyear, Gila Butte and 1 more · County |
2,566 | 3 | 0 | |
|
Diamond Valley Water District Prescott · Yavapai County |
2,000 | 1 | 1 | |
|
Marana Dwid Derringer Marana · Pima County |
1,950 | 4 | 0 | |
|
Gila Bend Town of Buckeye · Maricopa County |
1,922 | 7 | 0 | |
|
Centennial Park Dwid Centennial Park · Mohave County |
1,839 | 2 | 1 | |
|
Joseph City Dwid Joseph City · Navajo County |
1,811 | 4 | 1 | |
|
Utility Source LLC Bellemont · Coconino County |
1,710 | 4 | 2 | |
|
Sunrise Vista Utilities Sunrise Vistas · Mohave County |
1,500 | 3 | 1 | |
|
Shungopavi Shungopavi · County |
1,430 | 7 | 3 | |
|
Bearizona Williams · Coconino County |
1,423 | 6 | 0 | |
|
Kykotsmovi Kykotsmovi · County |
1,302 | 1 | 1 | |
|
Cameron Trading Post Cameron · Coconino County |
1,270 | 8 | 1 | |
|
Mammoth Town of Mammoth · Pinal County |
1,181 | 6 | 1 | |
|
Hopi High School Bia Hopi High School · County |
1,005 | 11 | 4 | |
|
Maricopa Consolidated Dwid Maricopa · Pinal County |
928 | 4 | 1 | |
|
Havasupai Village Supai · County |
885 | 6 | 2 | |
|
Walden Meadows Comm Coop Wilhoit · Yavapai County |
880 | 1 | 1 | |
|
Marana Dwid Culver Marana · Pima County |
709 | 4 | 1 | |
|
Sipaulovi (lower Sipaulovi/lower Mishongnovi) Lower Sipaulovi, Lower Mishongnovi · County |
609 | 5 | 2 | |
|
Sun Valley Farms Unit VI Queen Creek · Pinal County |
600 | 7 | 2 | |
|
Scua Cutter County |
574 | 5 | 2 | |
|
SO HI Dwid Kingman · Mohave County |
513 | 3 | 1 | |
|
Escapees at North Ranch Congress · Yavapai County |
500 | 2 | 0 | |
|
Sedona Venture Water Company Sedona · Yavapai County |
480 | 2 | 1 | |
|
Lower Moencopi Spring Source Lower Moencopi · County |
465 | 12 | 3 | |
|
Hopi Cultural Center Hopi Cultural Center · County |
450 | 4 | 2 | |
|
Laguna Mobile Home and RV Park Yuma · Yuma County |
450 | 5 | 2 | |
|
Palo Verde School District 49 Palo Verde · Maricopa County |
450 | 1 | 1 | |
|
Shepard Water Company Martinez Lake · Yuma County |
430 | 7 | 2 | |
|
Town & Country Preston Nogales · Santa Cruz County |
430 | 6 | 5 | |
|
Cactus Country RV Resort Tucson · Pima County |
420 | 3 | 1 | |
|
Michigan Trailer Park Phoenix · Maricopa County |
400 | 2 | 1 |
About this data
A system is counted once if any of its violations in the past three years involved Lead and Copper Rule Revisions (LCRR), including monitoring and reporting lapses. Rules violated and status in the table are for the whole system, not Lead and Copper Rule Revisions (LCRR) 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.