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Not health advice. Contact your local water utility for concerns.
Data from EPA Water Quality Reports. For official information, contact your water utility or health department.
Real EPA measurements of chlorine & chloramine for Arizona water systems — Six-Year Review compliance samples 2012–2019 (historical). Methodology
EPA does not publish per-city chlorine & chloramine measurements for Arizona in the datasets we use, so this section shows what regulators actually recorded: every Safe Drinking Water Act violation tied to chlorine & chloramine at the 37 Arizona public water systems we track, since 2016. Source: EPA SDWIS via ECHO (2026 Q2 extract).
18 of 37 tracked Arizona systems logged 45 chlorine & chloramine violations since 2016; 0 were health-based (a limit or treatment requirement), the rest monitoring or reporting failures.
| System | Pop. served | Violations | Health-based | Latest | EPA record |
|---|---|---|---|---|---|
| Douglas DOUGLAS CITY OF | 16,656 | 7 | 0 | 2024-01-01 Monitoring and Reporting (DBP) | AZ0402014 |
| Somerton SOMERTON CITY OF | 14,197 | 6 | 0 | 2023-01-01 Monitoring and Reporting (DBP) | AZ0414015 |
| Kingman KINGMAN MUNICIPAL WATER | 45,000 | 5 | 0 | 2023-07-01 Monitoring and Reporting (DBP) | AZ0408020 |
| El Mirage EL MIRAGE CITY OF | 39,884 | 4 | 0 | 2025-09-01 Monitoring and Reporting (DBP) | AZ0407091 |
| Buckeye CITY OF BUCKEYE - VALENCIA TOWN DIVISION | 30,377 | 4 | 0 | 2025-11-01 Monitoring and Reporting (DBP) | AZ0407078 |
| Goodyear GOODYEAR WATER DEPARTMENT | 50,001 | 3 | 0 | 2022-01-01 Monitoring and Reporting (DBP) | AZ0407094 |
| Avondale AVONDALE CITY OF | 96,130 | 2 | 0 | 2024-01-01 Monitoring and Reporting (DBP) | AZ0407088 |
| Nogales NOGALES CITY OF | 22,000 | 2 | 0 | 2025-07-01 Monitoring and Reporting (DBP) | AZ0412004 |
| Florence FLORENCE WATER COMPANY | 15,900 | 2 | 0 | 2018-01-01 Monitoring and Reporting (DBP) | AZ0411017 |
| Marana MARANA MUNICIPAL - MARANA | 15,162 | 2 | 0 | 2023-10-01 Monitoring and Reporting (DBP) | AZ0410150 |
| Tempe TEMPE CITY OF | 165,000 | 1 | 0 | 2016-01-01 Monitoring and Reporting (DBP) | AZ0407100 |
| Queen Creek QUEEN CREEK TOWN OF | 95,502 | 1 | 0 | 2023-01-01 Monitoring and Reporting (DBP) | AZ0407033 |
| Maricopa GW SANTA CRUZ WATER CO | 84,000 | 1 | 0 | 2025-11-01 Monitoring and Reporting (DBP) | AZ0411131 |
| Prescott Valley TOWN OF PRESCOTT VALLEY | 57,048 | 1 | 0 | 2016-10-01 Monitoring and Reporting (DBP) | AZ0413048 |
| Lake Havasu City LAKE HAVASU CITY OF | 54,610 | 1 | 0 | 2020-01-01 Monitoring and Reporting (DBP) | AZ0408022 |
| Sierra Vista BELLA VISTA CITY WATER SYSTEM | 20,045 | 1 | 0 | 2022-01-01 Monitoring and Reporting (DBP) | AZ0402010 |
| Sahuarita SAHUARITA WATER COMPANY | 18,178 | 1 | 0 | 2017-07-01 Monitoring and Reporting (DBP) | AZ0410312 |
| Eloy CCA - ELOY COMPLEX | 8,852 | 1 | 0 | 2018-10-01 Monitoring and Reporting (DBP) | AZ0411115 |
Every Arizona system with a chlorine & chloramine result in EPA's data, sorted by level. Averages of 2012–2019 finished-water samples, non-detects counted as zero — historical, not today's tap.
No chlorine & chloramine detections have been reported in Arizona cities.
Chlorine and chloramine are disinfectants added to kill harmful bacteria. While essential for preventing waterborne diseases, they can cause eye and nose irritation, stomach discomfort, and unpleasant taste. Chlorine can react with organic matter to form disinfection byproducts linked to increased cancer risk with long-term exposure. Chloramine is toxic to fish and problematic for dialysis patients.
Water additive used to control microbes; formed when chlorine combines with ammonia (chloramine)
Based on our analysis of EPA Safe Drinking Water Information System (SDWIS) data and local water utility reports,chlorine & chloramine has been detected in 0 Arizona water systems.
The EPA MRDL is 4.0 mg/L for both chlorine and chloramines. The EPA MCL for chlorine & chloramine is 4 mg/L. This limit is set to protect public health based on available scientific evidence about the contaminant's health effects.
0 Arizona cities have chlorine & chloramine detected in their water supply. All tested cities are within EPA safety limits.
Eye and nose irritation, unpleasant taste, formation of disinfection byproducts. The most vulnerable groups include dialysis patients (chloramine) and people with respiratory conditions.
The most effective methods for removing chlorine & chloramine include Activated Carbon, Catalytic Carbon, KDF Media. Look for filters certified by NSF/ANSI for chlorine & chloramine reduction.
The EPA Maximum Contaminant Level (MCL) for chlorine & chloramine is 4 mg/L.The EPA MRDL is 4.0 mg/L for both chlorine and chloramines.
This page shows what Arizona utilities reported for chlorine & chloramine. It cannot tell you what is coming out of your own tap: utility samples are taken across a whole system and averaged, levels vary by address and season, and anything picked up after the water leaves the main never appears in their report.
Home water test kitscheck your own tap before buying any filterRecommended filtration methods for chlorine & chloramine removal:
Very effective for chlorine
Required for chloramine removal
Good for whole-house systems
Paid links. We earn a commission if you buy, at no extra cost to you. Filters are matched to the removal methods listed above for chlorine & chloramine.