What was found in ZIP 92009
The level at this ZIP's main supplier, the highest level anywhere in it, the EPA limit for each, and where the figure comes from.
| Contaminant | Level vs EPA limit | Suppliers | Source |
|---|---|---|---|
| Fluoride | 764.5 µg/L 19% of the EPA limit 4000 µg/L Highest in the ZIP: OLIVENHAIN MWD · 86,458 people · 2019 | 1/2 | SYR4 |
| Barium | 119.5 µg/L 6% of the EPA limit 2000 µg/L Highest in the ZIP: OLIVENHAIN MWD · 86,458 people · 2019 | 1/2 | SYR4 |
| TTHM | 33 µg/L 41% of the EPA limit 80 µg/L Main supplier: CARLSBAD MWD · 95,158 people · 2019
Highest in the ZIP: 64.08 µg/L — OLIVENHAIN MWD · 86,458 people · 2019 | 2/2 | SYR4 |
| Lithium | 52.5 µg/L No EPA limit set Main supplier: CARLSBAD MWD · 95,158 people · 2023
Highest in the ZIP: 54.1 µg/L — OLIVENHAIN MWD · 86,458 people · 2024 | 2/2 | UCMR-5 |
| Chloroform | 12 µg/L No EPA limit set Main supplier: CARLSBAD MWD · 95,158 people · 2019
Highest in the ZIP: 32.595 µg/L — OLIVENHAIN MWD · 86,458 people · 2019 | 2/2 | SYR4 |
| Total Haloacetic Acids (HAA5) | 12 µg/L 20% of the EPA limit 60 µg/L Main supplier: CARLSBAD MWD · 95,158 people · 2019
Highest in the ZIP: 25.795 µg/L — OLIVENHAIN MWD · 86,458 people · 2019 | 2/2 | SYR4 |
| Bromodichloromethane | 10 µg/L No EPA limit set Main supplier: CARLSBAD MWD · 95,158 people · 2019
Highest in the ZIP: 21 µg/L — OLIVENHAIN MWD · 86,458 people · 2019 | 2/2 | SYR4 |
| Dibromochloromethane | 12 µg/L No EPA limit set Main supplier: CARLSBAD MWD · 95,158 people · 2019
Highest in the ZIP: 20 µg/L — OLIVENHAIN MWD · 86,458 people · 2019 | 2/2 | SYR4 |
| Dichloroacetic Acid | 5.12 µg/L No EPA limit set Main supplier: CARLSBAD MWD · 95,158 people · 2019
Highest in the ZIP: 15.975 µg/L — OLIVENHAIN MWD · 86,458 people · 2019 | 2/2 | SYR4 |
| Bromoform | 6.575 µg/L No EPA limit set Main supplier: CARLSBAD MWD · 95,158 people · 2019
Highest in the ZIP: 8.245 µg/L — OLIVENHAIN MWD · 86,458 people · 2019 | 2/2 | SYR4 |
| Trichloroacetic Acid | 4.475 µg/L No EPA limit set Main supplier: CARLSBAD MWD · 95,158 people · 2019
Highest in the ZIP: 6.285 µg/L — OLIVENHAIN MWD · 86,458 people · 2019 | 2/2 | SYR4 |
| Monochloroacetic Acid | 5.415 µg/L No EPA limit set Main supplier: CARLSBAD MWD · 95,158 people · 2019 | 2/2 | SYR4 |
| Dibromoacetic Acid | 3.5 µg/L No EPA limit set Main supplier: CARLSBAD MWD · 95,158 people · 2019
Highest in the ZIP: 4.995 µg/L — OLIVENHAIN MWD · 86,458 people · 2019 | 2/2 | SYR4 |
| Gross Beta Particle Activity | 4.95 pCi/L No EPA limit set Highest in the ZIP: OLIVENHAIN MWD · 86,458 people · 2019 | 1/2 | SYR4 |
| Arsenic | 4.19 µg/L 42% of the EPA limit 10 µg/L Highest in the ZIP: OLIVENHAIN MWD · 86,458 people · 2019 | 1/2 | SYR4 |
| Combined Uranium | 3.5313 µg/L 12% of the EPA limit 30 µg/L Highest in the ZIP: OLIVENHAIN MWD · 86,458 people · 2019 | 1/2 | SYR4 |
| Monobromoacetic Acid | 2.52 µg/L No EPA limit set Main supplier: CARLSBAD MWD · 95,158 people · 2019 | 1/2 | SYR4 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L Main supplier: CARLSBAD MWD · 95,158 people · 2024 | 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.
Water suppliers serving ZIP 92009
| Supplier | State | Population served |
|---|---|---|
| CARLSBAD MWD | CA | 95,158 |
| OLIVENHAIN MWD | CA | 86,458 |
Frequently asked questions about ZIP 92009 tap water
Is the tap water in ZIP 92009 safe to drink?
EPA testing detected 18 contaminants across the water suppliers serving ZIP 92009. A detection isn't the same as a violation — most levels are within federal limits. See each level and source above, and your utility's annual Consumer Confidence Report for the official status.
Which water suppliers serve ZIP 92009?
2 public water suppliers report EPA drinking-water monitoring for ZIP 92009. Each is listed above with its population served.
What contaminants are in ZIP 92009's water?
EPA monitoring detected Fluoride, Barium, TTHM, Lithium, Chloroform, and others across this ZIP's suppliers. The full list with levels and sources is above.