What was found in Weldon'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 | 2615 µg/L 26% of the EPA limit 10000 µg/L Main supplier: TRADEWIND WATER ASSOC. · 632 people · 2019
Highest in the city: 25000 µg/L — RAINBIRD VALLEY MWC · 238 people · 2019 | 6/6 | SYR4 |
| Fluoride | 585 µg/L 15% of the EPA limit 4000 µg/L Main supplier: TRADEWIND WATER ASSOC. · 632 people · 2019
Highest in the city: 1065 µg/L — LAKEVIEW RANCHOS MUTUAL WATER COMPANY · 120 people · 2018 | 6/6 | SYR4 |
| Barium | 58.5 µg/L 2.9% of the EPA limit 2000 µg/L Main supplier: TRADEWIND WATER ASSOC. · 632 people · 2019
Highest in the city: 157 µg/L — RAINBIRD VALLEY MWC · 238 people · 2019 | 6/6 | SYR4 |
| Combined Uranium | 32.78 µg/L 109% of the EPA limit, at the 95th percentile of samples — 30 µg/L Main supplier: TRADEWIND WATER ASSOC. · 632 people · 2019
Highest in the city: 85.3025 µg/L — RAINBIRD VALLEY MWC · 238 people · 2019 | 6/6 | SYR4 |
| Arsenic | 81.35 µg/L 814% of the EPA limit, at the 95th percentile of samples — 10 µg/L Highest in the city: LAKEVIEW RANCHOS MUTUAL WATER COMPANY · 120 people · 2019 | 4/6 | SYR4 |
| Copper | 67 µg/L 5.2% of the EPA limit 1300 µg/L Main supplier: TRADEWIND WATER ASSOC. · 632 people · 2019 | 4/6 | SYR4 |
| Lead | 24 µg/L 160% of the EPA limit, at the 95th percentile of samples — 15 µg/L Main supplier: TRADEWIND WATER ASSOC. · 632 people · 2019 | 3/6 | SYR4 |
| TTHM | 14.5 µg/L 18% of the EPA limit 80 µg/L Main supplier: TRADEWIND WATER ASSOC. · 632 people · 2019
Highest in the city: 20.6 µg/L — BELLA VISTA MUTUAL WATER COMPANY · 150 people · 2019 | 3/6 | SYR4 |
| Chloroform | 0.6400 µg/L No EPA limit set Main supplier: TRADEWIND WATER ASSOC. · 632 people · 2019
Highest in the city: 19.9845 µg/L — BELLA VISTA MUTUAL WATER COMPANY · 150 people · 2019 | 3/6 | SYR4 |
| Carbon Tetrachloride | 14 µg/L 280% of the EPA limit, at the 95th percentile of samples — 5 µg/L Highest in the city: BELLA VISTA MUTUAL WATER COMPANY · 150 people · 2019 | 1/6 | SYR4 |
| Bromoform | 6.05 µg/L No EPA limit set Main supplier: TRADEWIND WATER ASSOC. · 632 people · 2019
Highest in the city: 10.61 µg/L — BELLA VISTA MUTUAL WATER COMPANY · 150 people · 2019 | 4/6 | SYR4 |
| Total Haloacetic Acids (HAA5) | 8.04 µg/L 13% of the EPA limit 60 µg/L Main supplier: TRADEWIND WATER ASSOC. · 632 people · 2019 | 4/6 | SYR4 |
| Dibromoacetic Acid | 2.85 µg/L No EPA limit set Main supplier: TRADEWIND WATER ASSOC. · 632 people · 2019
Highest in the city: 7.815 µg/L — BELLA VISTA MUTUAL WATER COMPANY · 150 people · 2019 | 3/6 | SYR4 |
| Selenium | 7.8 µg/L 16% of the EPA limit 50 µg/L Highest in the city: LAKEVIEW RANCHOS MUTUAL WATER COMPANY · 120 people · 2018 | 4/6 | SYR4 |
| Dibromochloromethane | 5.73 µg/L No EPA limit set Main supplier: TRADEWIND WATER ASSOC. · 632 people · 2019
Highest in the city: 6.71 µg/L — BELLA VISTA MUTUAL WATER COMPANY · 150 people · 2019 | 3/6 | SYR4 |
| Trichloroacetic Acid | 6.15 µg/L No EPA limit set Main supplier: TRADEWIND WATER ASSOC. · 632 people · 2019 | 3/6 | SYR4 |
| Toluene | 2.9 µg/L 0.3% of the EPA limit 1000 µg/L Highest in the city: LAKEVIEW RANCHOS MUTUAL WATER COMPANY · 120 people · 2018 | 1/6 | SYR4 |
| Bromodichloromethane | 2.19 µg/L No EPA limit set Main supplier: TRADEWIND WATER ASSOC. · 632 people · 2019
Highest in the city: 2.75 µg/L — BELLA VISTA MUTUAL WATER COMPANY · 150 people · 2019 | 3/6 | SYR4 |
| Trichloroethylene | 2.1 µg/L 42% of the EPA limit 5 µg/L Highest in the city: BELLA VISTA MUTUAL WATER COMPANY · 150 people · 2019 | 1/6 | SYR4 |
| Asbestos | 1.7 MFL 24% of the EPA limit 7 MFL Highest in the city: LAKEVIEW RANCHOS MUTUAL WATER COMPANY · 120 people · 2013 | 1/6 | SYR4 |
| Tetrachloroethylene | 1.1 µg/L 22% of the EPA limit 5 µg/L Highest in the city: BELLA VISTA MUTUAL WATER COMPANY · 150 people · 2019 | 1/6 | SYR4 |
| Dichloromethane | 0.9400 µg/L 19% of the EPA limit 5 µg/L Highest in the city: BELLA VISTA MUTUAL WATER COMPANY · 150 people · 2019 | 1/6 | SYR4 |
| 1,2-Dichloroethane | 0.5000 µg/L 10% of the EPA limit 5 µg/L Main supplier: TRADEWIND WATER ASSOC. · 632 people · 2019 | 1/6 | SYR4 |
| Lead | 0.0061 mg/L 41% of the EPA limit 0.0150 mg/L Main supplier: TRADEWIND WATER ASSOC. · 632 people · 2023 | 6/6 | 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 Weldon
| Supplier | Population served |
|---|---|
| TRADEWIND WATER ASSOC. | 632 |
| VALLEY ESTATES POA, INC. | 386 |
| RAINBIRD VALLEY MWC | 238 |
| BELLA VISTA MUTUAL WATER COMPANY | 150 |
| LAKEVIEW RANCHOS MUTUAL WATER COMPANY | 120 |
| HILLVIEW ACRES MUTUAL WATER COMPANY | 36 |
Frequently asked questions about Weldon tap water
Is Weldon tap water safe to drink?
EPA testing detected 24 contaminants in the water serving Weldon. 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 Weldon?
6 public water suppliers report drinking-water monitoring for Weldon, California to the EPA. Each is listed above with its population served.
What contaminants are in Weldon's water?
The contaminants EPA monitoring detected in Weldon include Nitrate, Fluoride, Barium, Combined Uranium, Arsenic. 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.