Maricopa County · Arizona · EPA SDWIS 2026Q2
Buckeye Water Quality
What's in Buckeye's water
Haloacetic Acids (HAA5)
Violation on record
8 EPA violations on record (most recent 2023). HAA5 are a second group of chlorine disinfection byproducts formed when chlorine reacts with organic matter in water. Long-term exposure is associated with increased cancer risk and possible developmental effects. They commonly occur together with trihalomethanes.
Arsenic
Violation on record
7 EPA violations on record (most recent 2024). Arsenic is a naturally occurring element that dissolves into groundwater from rock and is also released by mining and industry. Long-term exposure is associated with several cancers and with skin, cardiovascular, and developmental harm. It is common in parts of the Southwest.
Nitrate
Violation on record
4 EPA violations on record (most recent 2024). Nitrate enters water mainly from fertilizer runoff, septic systems, and animal waste. High levels can interfere with the blood's ability to carry oxygen, a special danger for infants. Long-term low-level exposure has also been linked to elevated cancer risk in some studies.
Fluoride
Violation on record
4 EPA violations on record (most recent 2024). Fluoride occurs naturally in groundwater and is also added by many utilities to reduce tooth decay. At high natural levels it can damage developing teeth and, over long exposure, weaken bones. The federal limit targets these high-level health effects rather than the low levels used for dental benefit.
Total Trihalomethanes (TTHM)
Violation on record
2 EPA violations on record (most recent 2023). TTHM form when chlorine used to disinfect water reacts with natural organic matter. Long-term exposure has been linked to increased cancer risk and to harm in pregnancy. Levels often rise in warmer months and in systems with more organic material.
PFOA
Violation on record
1 EPA violation on record (most recent 2021). PFOA is a long-lived "forever chemical" once used to make nonstick and stain-resistant products. It builds up in the body over time and is associated with certain cancers, immune effects, and developmental harm. EPA finalized a strict drinking-water limit for it in 2024.
Cadmium
Violation on record
1 EPA violation on record (most recent 2020). Cadmium enters water from corroded galvanized pipes and from industrial and mining discharges. Long-term exposure mainly damages the kidneys and can weaken bones. It is toxic even at low levels over time.
PFOS
Violation on record
1 EPA violation on record (most recent 2021). PFOS is another "forever chemical" from older firefighting foams and consumer coatings. Like PFOA it accumulates in the body and is linked to immune, thyroid, liver, and developmental effects. EPA set an enforceable limit for it in 2024.
Atrazine
Violation on record
1 EPA violation on record (most recent 2021). Atrazine is one of the most widely used weed killers and reaches water through agricultural runoff. It is an endocrine disruptor associated with reproductive and developmental effects, and concentrations tend to spike seasonally after application. It is most common in farming regions.
Mercury
Violation on record
1 EPA violation on record (most recent 2020). Mercury reaches water from natural deposits, industrial runoff, and discarded products. Long-term exposure harms the kidneys and nervous system. It is tightly regulated because of its toxicity at low concentrations.
Barium
Violation on record
1 EPA violation on record (most recent 2020). Barium dissolves into water naturally from rock and can also come from drilling and industrial discharges. Drinking elevated levels over time can raise blood pressure and stress the cardiovascular system. It is fairly common in some groundwater sources.
Selenium
Violation on record
1 EPA violation on record (most recent 2020). Selenium is a naturally occurring element that is a necessary nutrient at trace levels but toxic in excess. Long-term high exposure can damage the nervous system, hair, and nails. It enters water from natural deposits and from irrigation drainage.
Water hardness
very hard
Buckeye's water is very hard. Hardness isn't a health risk, but it drives scale on fixtures and water heaters, shortens appliance life, and leaves skin and hair dry.
Your water provider
CITY OF BUCKEYE - VALENCIA TOWN DIVISION
- Population served
- 30,377
- PWSID
- AZ0407078
- 1
See your Water Score
Free, instant, no signup.
- 2
Get your custom fix-it plan
Exactly what your water needs.
- 3
Book your free 30-min test
No pitch, no nonsense.
Compare trusted local water pros
License-verified installers near Buckeye. Get a free water test and a fix-it plan — no pitch.
Or check a different ZIP: