Total Haloacetic Acids (HAA5) violations in Arizona
212 active public water systems in Arizona had a Total Haloacetic Acids (HAA5) violation in the past three years, 18 of them in the latest quarter of EPA's data. What Total Haloacetic Acids (HAA5) is and why it matters.
Systems with a Total Haloacetic Acids (HAA5) violation
Latest quarter first, then largest first| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Ghr Landowners Assn Water Coop White Hills · Mohave County |
280 | 7 | 2 | |
|
LA Casita Water Company 2 Tucson · Pima County |
264 | 2 | 1 | |
|
Thim Utility Company Well 9 Three Points · Pima County |
254 | 1 | 0 | |
|
Antelope Union High School Yuma · Yuma County |
250 | 8 | 0 | |
|
Porter Creek Dwid Lakeside · Navajo County |
250 | 7 | 4 | |
|
Yucca Water Association Yucca · Mohave County |
250 | 4 | 1 | |
|
CS Mohawk Utility Company Tacna · Yuma County |
243 | 8 | 0 | |
|
Wmatua Carrizo Carrizo · County |
228 | 2 | 1 | |
|
Camp Mohave Bullhead City · Mohave County |
224 | 6 | 1 | |
|
Pinedale Estates Dwid Show Low · Navajo County |
208 | 6 | 1 | |
|
Aguila Elementary School Aguila · Maricopa County |
200 | 4 | 1 | |
|
Naturesweet USA Fort Grant · Graham County |
200 | 2 | 0 | |
|
Nissan Technical Center Stanfield · Pinal County |
200 | 2 | 0 | |
|
Rim Trail Dwid Payson · Gila County |
200 | 9 | 3 | |
|
Silverbell Mining, LLC Marana · Pima County |
200 | 3 | 0 | |
|
Whispering Wind Mobile Home Park Coolidge · Pinal County |
200 | 4 | 1 | |
|
Cibola Water Improvement District Cibola · La Paz County |
197 | 8 | 2 | |
|
Seven Canyons of Sedona Sedona · Yavapai County |
195 | 4 | 2 | |
|
Snowbird RV Park Fort Mohave · Mohave County |
180 | 6 | 1 | |
|
Mohawk Valley School District Roll · Yuma County |
171 | 7 | 0 | |
|
CS Lake Verde Water Company Camp Verde · Yavapai County |
169 | 4 | 0 | |
|
CS Antelope Water Company Mohawk · Yuma County |
163 | 5 | 0 | |
|
Greenfields Country Day School Tucson · Pima County |
163 | 6 | 0 | |
|
Beaver Dam WC System 2 Mesquite City · Mohave County |
162 | 5 | 0 | |
|
Kaka Kaka · County |
150 | 3 | 1 | |
|
Usaf Gila Bend Gila Bend · Maricopa County |
150 | 4 | 0 | |
|
Kohls Ranch Water Company Kohls Ranch · Gila County |
141 | 9 | 2 | |
|
Canyon Water Improvement District Globe · Gila County |
130 | 3 | 0 | |
|
Bonita Public School Willcox · Graham County |
128 | 6 | 3 | |
|
Beverly Gardens Trailer Park Prescott · Yavapai County |
120 | 4 | 0 | |
|
Cowlic Cowlic · County |
120 | 1 | 0 | |
|
Turquoise Triangle RV Park Cottonwood · Yavapai County |
120 | 3 | 0 | |
|
Verde Glen Dwid Payson · Gila County |
117 | 7 | 3 | |
|
Sherman Pines Water Company Sherman Pines · Yavapai County |
110 | 3 | 0 | |
|
Cienega Water Company INC Parker · La Paz County |
108 | 8 | 2 | |
|
Catalina Village Tucson · Pima County |
107 | 3 | 1 | |
|
Bellemont Water Company Bellemont · Coconino County |
100 | 7 | 2 | |
|
Holbrook Sda Indian School Holbrook · Navajo County |
100 | 5 | 0 | |
|
Valley Union High School Elfrida · Cochise County |
100 | 4 | 0 | |
|
Yavapai Country Club Estates Water CO Peeples Valley · Yavapai County |
100 | 4 | 2 | |
|
Signal Peak Water Company Coolidge · Pinal County |
99 | 4 | 0 | |
|
Sahuarita Village Water Company Sahuarita · Pima County |
93 | 5 | 1 | |
|
Chimney Estates Mayer · Yavapai County |
90 | 6 | 1 | |
|
G & L Mobile Park Yuma · Yuma County |
90 | 6 | 1 | |
|
Tonto Basin School District 33 Punkin Center · Gila County |
90 | 6 | 2 | |
|
Six Mile and Steamboat Village Six Mile And Steamboat Village · County |
88 | 4 | 0 | |
|
Navajo County Public Works Complex Holbrook · Navajo County |
86 | 5 | 1 | |
|
CS Santa Cruz Water CO Fort Huachuca · Santa Cruz County |
82 | 5 | 0 | |
|
Usfs Knf Tusayan Admin Tusayan · Coconino County |
80 | 6 | 1 | |
|
Metropolitan Dwid Lazy B Tucson · Pima County |
77 | 2 | 0 |
About this data
A system is counted once if any of its violations in the past three years involved Total Haloacetic Acids (HAA5), including monitoring and reporting lapses. Rules violated and status in the table are for the whole system, not Total Haloacetic Acids (HAA5) 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.