What was found in Litchfield Park's water
The level at the city's main supplier, the highest level anywhere in the city, the EPA limit for each, and where every figure comes from.
| Contaminant | Level vs EPA limit | Suppliers | Source |
|---|---|---|---|
| Nitrate | 9346.5 µg/L 93% of the EPA limit 10000 µg/L Main supplier: LIBERTY WATER LPSCO · 55,810 people · 2019 | 2/2 | SYR4 |
| Nitrate-Nitrite | 9192 µg/L 92% of the EPA limit 10000 µg/L Main supplier: LIBERTY WATER LPSCO · 55,810 people · 2019 | 2/2 | SYR4 |
| Fluoride | 1507 µg/L 38% of the EPA limit 4000 µg/L Main supplier: LIBERTY WATER LPSCO · 55,810 people · 2019
Highest in the city: 2524 µg/L — USAF LUKE AIR FORCE BASE · 8,440 people · 2019 | 2/2 | SYR4 |
| Copper | 237 µg/L 18% of the EPA limit 1300 µg/L Main supplier: LIBERTY WATER LPSCO · 55,810 people · 2019 | 2/2 | SYR4 |
| Lithium | 166 µg/L No EPA limit set Main supplier: LIBERTY WATER LPSCO · 55,810 people · 2024 | 2/2 | UCMR-5 |
| Barium | 111.5 µg/L 5.6% of the EPA limit 2000 µg/L Main supplier: LIBERTY WATER LPSCO · 55,810 people · 2019
Highest in the city: 137.21 µg/L — USAF LUKE AIR FORCE BASE · 8,440 people · 2019 | 2/2 | SYR4 |
| TTHM | 33.145 µg/L 41% of the EPA limit 80 µg/L Main supplier: LIBERTY WATER LPSCO · 55,810 people · 2019
Highest in the city: 108.04 µg/L — USAF LUKE AIR FORCE BASE · 8,440 people · 2019 | 2/2 | SYR4 |
| Chromium | 16 µg/L 16% of the EPA limit 100 µg/L Main supplier: LIBERTY WATER LPSCO · 55,810 people · 2019
Highest in the city: 50.6 µg/L — USAF LUKE AIR FORCE BASE · 8,440 people · 2019 | 2/2 | SYR4 |
| Bromoform | 12.215 µg/L No EPA limit set Main supplier: LIBERTY WATER LPSCO · 55,810 people · 2019
Highest in the city: 45.3 µg/L — USAF LUKE AIR FORCE BASE · 8,440 people · 2019 | 2/2 | SYR4 |
| Dibromochloromethane | 3.565 µg/L No EPA limit set Main supplier: LIBERTY WATER LPSCO · 55,810 people · 2019
Highest in the city: 36.9 µg/L — USAF LUKE AIR FORCE BASE · 8,440 people · 2019 | 2/2 | SYR4 |
| Bromodichloromethane | 1.375 µg/L No EPA limit set Main supplier: LIBERTY WATER LPSCO · 55,810 people · 2019
Highest in the city: 29.84 µg/L — USAF LUKE AIR FORCE BASE · 8,440 people · 2019 | 2/2 | SYR4 |
| Lead | 7.02 µg/L 47% of the EPA limit 15 µg/L Main supplier: LIBERTY WATER LPSCO · 55,810 people · 2019
Highest in the city: 26.44 µg/L — USAF LUKE AIR FORCE BASE · 8,440 people · 2019 | 2/2 | SYR4 |
| Total Haloacetic Acids (HAA5) | 5.56 µg/L 9.3% of the EPA limit 60 µg/L Main supplier: LIBERTY WATER LPSCO · 55,810 people · 2019
Highest in the city: 25 µg/L — USAF LUKE AIR FORCE BASE · 8,440 people · 2019 | 2/2 | SYR4 |
| Chloroform | 2.285 µg/L No EPA limit set Main supplier: LIBERTY WATER LPSCO · 55,810 people · 2019
Highest in the city: 24.62 µg/L — USAF LUKE AIR FORCE BASE · 8,440 people · 2019 | 2/2 | SYR4 |
| Arsenic | 8.625 µg/L 86% of the EPA limit 10 µg/L Main supplier: LIBERTY WATER LPSCO · 55,810 people · 2019
Highest in the city: 13.34 µg/L — USAF LUKE AIR FORCE BASE · 8,440 people · 2019 | 2/2 | SYR4 |
| Selenium | 8.6 µg/L 17% of the EPA limit 50 µg/L Main supplier: LIBERTY WATER LPSCO · 55,810 people · 2019
Highest in the city: 11.19 µg/L — USAF LUKE AIR FORCE BASE · 8,440 people · 2019 | 2/2 | SYR4 |
| Dichloroacetic Acid | 10.33 µg/L No EPA limit set Highest in the city: USAF LUKE AIR FORCE BASE · 8,440 people · 2019 | 1/2 | SYR4 |
| Dibromoacetic Acid | 3.115 µg/L No EPA limit set Main supplier: LIBERTY WATER LPSCO · 55,810 people · 2019
Highest in the city: 7.59 µg/L — USAF LUKE AIR FORCE BASE · 8,440 people · 2019 | 2/2 | SYR4 |
| Trichloroacetic Acid | 5.87 µg/L No EPA limit set Highest in the city: USAF LUKE AIR FORCE BASE · 8,440 people · 2019 | 1/2 | SYR4 |
| Gross Alpha, Excl. Radon And U | 5.5 pCi/L 37% of the EPA limit 15 pCi/L Main supplier: LIBERTY WATER LPSCO · 55,810 people · 2016 | 1/2 | SYR4 |
| Monochloroacetic Acid | 2.5 µg/L No EPA limit set Highest in the city: USAF LUKE AIR FORCE BASE · 8,440 people · 2019 | 1/2 | SYR4 |
| Monobromoacetic Acid | 1.49 µg/L No EPA limit set Highest in the city: USAF LUKE AIR FORCE BASE · 8,440 people · 2019 | 1/2 | SYR4 |
| Thallium, Total | 1.23 µg/L 62% of the EPA limit 2 µg/L Highest in the city: USAF LUKE AIR FORCE BASE · 8,440 people · 2019 | 1/2 | SYR4 |
| Di(2-ethylhexyl) Phthalate | 1 µg/L 17% of the EPA limit 6 µg/L Main supplier: LIBERTY WATER LPSCO · 55,810 people · 2019 | 1/2 | SYR4 |
| Antimony, Total | 0.5000 µg/L 8.3% of the EPA limit 6 µg/L Main supplier: LIBERTY WATER LPSCO · 55,810 people · 2019 | 1/2 | SYR4 |
| Combined Radium (-226 And -228) | 0.3000 pCi/L 6% of the EPA limit 5 pCi/L Main supplier: LIBERTY WATER LPSCO · 55,810 people · 2019 | 1/2 | SYR4 |
| Asbestos | 0.2000 MFL 2.9% of the EPA limit 7 MFL Main supplier: LIBERTY WATER LPSCO · 55,810 people · 2019 | 1/2 | SYR4 |
| Pfpea | 0.0546 µg/L No EPA limit set Main supplier: LIBERTY WATER LPSCO · 55,810 people · 2024 | 2/2 | UCMR-5 |
| Pfhxa | 0.0232 µg/L No EPA limit set Main supplier: LIBERTY WATER LPSCO · 55,810 people · 2024 | 2/2 | UCMR-5 |
| Pfba | 0.0203 µg/L No EPA limit set Main supplier: LIBERTY WATER LPSCO · 55,810 people · 2024 | 1/2 | UCMR-5 |
| PFHXS | 0.0189 µg/L No EPA limit set Main supplier: LIBERTY WATER LPSCO · 55,810 people · 2024 | 2/2 | UCMR-5 |
| PFOS | 0.0141 µg/L No EPA limit set Main supplier: LIBERTY WATER LPSCO · 55,810 people · 2024 | 2/2 | UCMR-5 |
| PFOA | 0.0102 µg/L No EPA limit set Main supplier: LIBERTY WATER LPSCO · 55,810 people · 2024 | 2/2 | UCMR-5 |
| PFBS | 0.0084 µg/L No EPA limit set Main supplier: LIBERTY WATER LPSCO · 55,810 people · 2024 | 2/2 | UCMR-5 |
| Pfhpa | 0.0061 µg/L No EPA limit set Main supplier: LIBERTY WATER LPSCO · 55,810 people · 2024 | 2/2 | UCMR-5 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L Main supplier: LIBERTY WATER LPSCO · 55,810 people · 2023 | 2/2 | LCR |
Each bar shows the measured level as a share of the EPA limit: green is
well under, amber is close to it, red is over. For lead and copper the
limit applies to exactly the 90th-percentile figure shown, so red there
means a real exceedance. For everything else the limit applies to a
running annual average while the figure is the 95th percentile of the
system's samples — over 100% is worth reading, but is not by itself a
violation.
Formal violations are listed separately.
These are the utilities' own EPA-reported results, not a city-wide
average. A detection means the lab measured the
substance — it isn't the same as exceeding a legal limit. Hover a source
tag to see the EPA program and years behind each figure.
Water suppliers serving Litchfield Park
| Supplier | Population served |
|---|---|
| LIBERTY WATER LPSCO | 55,810 |
| USAF LUKE AIR FORCE BASE | 8,440 |
Frequently asked questions about Litchfield Park tap water
Is Litchfield Park tap water safe to drink?
EPA testing detected 36 contaminants in the water serving Litchfield Park. A detection isn't the same as a violation — most detected levels are within federal limits. Check the level and source for each contaminant above, and your utility's annual Consumer Confidence Report for the official compliance status.
How many water suppliers serve Litchfield Park?
2 public water suppliers report drinking-water monitoring for Litchfield Park, Arizona to the EPA. Each is listed above with its population served.
What contaminants are in Litchfield Park's water?
The contaminants EPA monitoring detected in Litchfield Park include Nitrate, Nitrate-Nitrite, Fluoride, Copper, Lithium. The full list, with the level at the main supplier and the data source, is in the table above.
Where does this data come from?
Every figure is official EPA drinking-water monitoring — the Lead & Copper Rule, the UCMR-5 nationwide testing program, and the EPA Six-Year Review — not our own testing. Each number is labelled with its source and period.