What was found in Arvin'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-Nitrite | 200000 µg/L 2000% of the EPA limit, at the 95th percentile of samples — 10000 µg/L Main supplier: ARVIN COMMUNITY SERVICES DIST · 19,669 people · 2013 | 1/1 | SYR4 |
| Nitrate | 10848 µg/L 108% of the EPA limit, at the 95th percentile of samples — 10000 µg/L Main supplier: ARVIN COMMUNITY SERVICES DIST · 19,669 people · 2019 | 1/1 | SYR4 |
| Fluoride | 569.9999999999999 µg/L 14% of the EPA limit 4000 µg/L Main supplier: ARVIN COMMUNITY SERVICES DIST · 19,669 people · 2019 | 1/1 | SYR4 |
| Barium | 154 µg/L 7.7% of the EPA limit 2000 µg/L Main supplier: ARVIN COMMUNITY SERVICES DIST · 19,669 people · 2019 | 1/1 | SYR4 |
| Nitrite | 110 µg/L 11% of the EPA limit 1000 µg/L Main supplier: ARVIN COMMUNITY SERVICES DIST · 19,669 people · 2019 | 1/1 | SYR4 |
| Copper | 69.55 µg/L 5.4% of the EPA limit 1300 µg/L Main supplier: ARVIN COMMUNITY SERVICES DIST · 19,669 people · 2019 | 1/1 | SYR4 |
| Trichloroacetic Acid | 43.29999999999987 µg/L No EPA limit set Main supplier: ARVIN COMMUNITY SERVICES DIST · 19,669 people · 2019 | 1/1 | SYR4 |
| Arsenic | 33 µg/L 330% of the EPA limit, at the 95th percentile of samples — 10 µg/L Main supplier: ARVIN COMMUNITY SERVICES DIST · 19,669 people · 2019 | 1/1 | SYR4 |
| Total Haloacetic Acids (HAA5) | 21.550000000000004 µg/L 36% of the EPA limit 60 µg/L Main supplier: ARVIN COMMUNITY SERVICES DIST · 19,669 people · 2019 | 1/1 | SYR4 |
| TTHM | 15.599999999999994 µg/L 19% of the EPA limit 80 µg/L Main supplier: ARVIN COMMUNITY SERVICES DIST · 19,669 people · 2019 | 1/1 | SYR4 |
| Bromoform | 9.489999999999998 µg/L No EPA limit set Main supplier: ARVIN COMMUNITY SERVICES DIST · 19,669 people · 2019 | 1/1 | SYR4 |
| Dibromoacetic Acid | 5.0299999999999985 µg/L No EPA limit set Main supplier: ARVIN COMMUNITY SERVICES DIST · 19,669 people · 2019 | 1/1 | SYR4 |
| Selenium | 4.17 µg/L 8.3% of the EPA limit 50 µg/L Main supplier: ARVIN COMMUNITY SERVICES DIST · 19,669 people · 2019 | 1/1 | SYR4 |
| Dichloroacetic Acid | 4.05 µg/L No EPA limit set Main supplier: ARVIN COMMUNITY SERVICES DIST · 19,669 people · 2019 | 1/1 | SYR4 |
| Tetrachloroethylene | 3.7799999999999994 µg/L 76% of the EPA limit 5 µg/L Main supplier: ARVIN COMMUNITY SERVICES DIST · 19,669 people · 2019 | 1/1 | SYR4 |
| Di(2-ethylhexyl) Phthalate | 3.4 µg/L 57% of the EPA limit 6 µg/L Main supplier: ARVIN COMMUNITY SERVICES DIST · 19,669 people · 2016 | 1/1 | SYR4 |
| Lead | 2.8649999999999998 µg/L 19% of the EPA limit 15 µg/L Main supplier: ARVIN COMMUNITY SERVICES DIST · 19,669 people · 2019 | 1/1 | SYR4 |
| Dibromochloromethane | 2.699999999999998 µg/L No EPA limit set Main supplier: ARVIN COMMUNITY SERVICES DIST · 19,669 people · 2019 | 1/1 | SYR4 |
| Bromodichloromethane | 1.3199999999999996 µg/L No EPA limit set Main supplier: ARVIN COMMUNITY SERVICES DIST · 19,669 people · 2019 | 1/1 | SYR4 |
| Benzene | 0.6500 µg/L 13% of the EPA limit 5 µg/L Main supplier: ARVIN COMMUNITY SERVICES DIST · 19,669 people · 2019 | 1/1 | SYR4 |
| Combined Uranium | 0.4604 µg/L 1.5% of the EPA limit 30 µg/L Main supplier: ARVIN COMMUNITY SERVICES DIST · 19,669 people · 2013 | 1/1 | SYR4 |
| Mercury | 0.2400 µg/L 12% of the EPA limit 2 µg/L Main supplier: ARVIN COMMUNITY SERVICES DIST · 19,669 people · 2019 | 1/1 | SYR4 |
| 1,2-DIBROMO-3-CHLOROPROPANE | 0.2250 µg/L 113% of the EPA limit, at the 95th percentile of samples — 0.2000 µg/L Main supplier: ARVIN COMMUNITY SERVICES DIST · 19,669 people · 2019 | 1/1 | SYR4 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L Main supplier: ARVIN COMMUNITY SERVICES DIST · 19,669 people · 2025 | 1/1 | 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 Arvin
| Supplier | Population served |
|---|---|
| ARVIN COMMUNITY SERVICES DIST | 19,669 |
Frequently asked questions about Arvin tap water
Is Arvin tap water safe to drink?
EPA testing detected 24 contaminants in the water serving Arvin. 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 Arvin?
1 public water supplier report drinking-water monitoring for Arvin, California to the EPA. Each is listed above with its population served.
What contaminants are in Arvin's water?
The contaminants EPA monitoring detected in Arvin include Nitrate-Nitrite, Nitrate, Fluoride, Barium, Nitrite. 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.