What was found in ZIP 93923
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 |
|---|---|---|---|
| Nitrate-Nitrite | 460000 µg/L 4600% of the EPA limit, at the 95th percentile of samples — 10000 µg/L Main supplier: CAL AM WATER COMPANY - MONTEREY · 92,450 people · 2019 | 3/3 | SYR4 |
| Nitrate | 6102 µg/L 61% of the EPA limit 10000 µg/L Main supplier: CAL AM WATER COMPANY - MONTEREY · 92,450 people · 2019 | 3/3 | SYR4 |
| Nitrite | 485 µg/L 49% of the EPA limit 1000 µg/L Highest in the ZIP: CANADA WOODS WC · 356 people · 2019 | 1/3 | SYR4 |
| Fluoride | 407 µg/L 10% of the EPA limit 4000 µg/L Main supplier: CAL AM WATER COMPANY - MONTEREY · 92,450 people · 2019 | 2/3 | SYR4 |
| Copper | 382.55 µg/L 29% of the EPA limit 1300 µg/L Highest in the ZIP: KOHALA RANCH WATER CO. · 850 people · 2019 | 2/3 | SYR4 |
| Barium | 180 µg/L 9% of the EPA limit 2000 µg/L Main supplier: CAL AM WATER COMPANY - MONTEREY · 92,450 people · 2019 | 2/3 | SYR4 |
| Lead | 6 µg/L 40% of the EPA limit 15 µg/L Main supplier: CAL AM WATER COMPANY - MONTEREY · 92,450 people · 2019
Highest in the ZIP: 117.19 µg/L — KOHALA RANCH WATER CO. · 850 people · 2019 | 3/3 | SYR4 |
| TTHM | 84.345 µg/L 105% of the EPA limit, at the 95th percentile of samples — 80 µg/L Main supplier: CAL AM WATER COMPANY - MONTEREY · 92,450 people · 2019 | 3/3 | SYR4 |
| Toluene | 4.023 µg/L 0.4% of the EPA limit 1000 µg/L Main supplier: CAL AM WATER COMPANY - MONTEREY · 92,450 people · 2019
Highest in the ZIP: 69.38 µg/L — CANADA WOODS WC · 356 people · 2019 | 2/3 | SYR4 |
| Lithium | 57.5 µg/L No EPA limit set Main supplier: CAL AM WATER COMPANY - MONTEREY · 92,450 people · 2023 | 1/3 | UCMR-5 |
| Chloroform | 45.87 µg/L No EPA limit set Main supplier: CAL AM WATER COMPANY - MONTEREY · 92,450 people · 2019 | 2/3 | SYR4 |
| Mercury | 41.28 µg/L 2064% of the EPA limit, at the 95th percentile of samples — 2 µg/L Main supplier: CAL AM WATER COMPANY - MONTEREY · 92,450 people · 2019 | 1/3 | SYR4 |
| Chromium | 11.95 µg/L 12% of the EPA limit 100 µg/L Main supplier: CAL AM WATER COMPANY - MONTEREY · 92,450 people · 2019
Highest in the ZIP: 31.98 µg/L — CANADA WOODS WC · 356 people · 2019 | 3/3 | SYR4 |
| Total Haloacetic Acids (HAA5) | 30.675 µg/L 51% of the EPA limit 60 µg/L Main supplier: CAL AM WATER COMPANY - MONTEREY · 92,450 people · 2019 | 2/3 | SYR4 |
| Bromoform | 4.4 µg/L No EPA limit set Main supplier: CAL AM WATER COMPANY - MONTEREY · 92,450 people · 2019
Highest in the ZIP: 24.6 µg/L — CANADA WOODS WC · 356 people · 2019 | 3/3 | SYR4 |
| Bromodichloromethane | 21.89 µg/L No EPA limit set Main supplier: CAL AM WATER COMPANY - MONTEREY · 92,450 people · 2019 | 2/3 | SYR4 |
| Dibromochloromethane | 15.35 µg/L No EPA limit set Main supplier: CAL AM WATER COMPANY - MONTEREY · 92,450 people · 2019
Highest in the ZIP: 20.5 µg/L — CANADA WOODS WC · 356 people · 2019 | 2/3 | SYR4 |
| Arsenic | 10 µg/L 100% of the EPA limit 10 µg/L Main supplier: CAL AM WATER COMPANY - MONTEREY · 92,450 people · 2019
Highest in the ZIP: 17.9 µg/L — CANADA WOODS WC · 356 people · 2019 | 2/3 | SYR4 |
| Selenium | 15.85 µg/L 32% of the EPA limit 50 µg/L Main supplier: CAL AM WATER COMPANY - MONTEREY · 92,450 people · 2019 | 2/3 | SYR4 |
| Dichloroacetic Acid | 15.715 µg/L No EPA limit set Main supplier: CAL AM WATER COMPANY - MONTEREY · 92,450 people · 2019 | 2/3 | SYR4 |
| Cyanide | 12.7 µg/L 6.4% of the EPA limit 200 µg/L Highest in the ZIP: CANADA WOODS WC · 356 people · 2019 | 1/3 | SYR4 |
| Trichloroacetic Acid | 11.045 µg/L No EPA limit set Main supplier: CAL AM WATER COMPANY - MONTEREY · 92,450 people · 2019
Highest in the ZIP: 12.1 µg/L — CANADA WOODS WC · 356 people · 2019 | 2/3 | SYR4 |
| Monochloroacetic Acid | 9.32 µg/L No EPA limit set Main supplier: CAL AM WATER COMPANY - MONTEREY · 92,450 people · 2019 | 1/3 | SYR4 |
| Diquat | 8.7 µg/L 43% of the EPA limit 20 µg/L Highest in the ZIP: CANADA WOODS WC · 356 people · 2019 | 1/3 | SYR4 |
| Dichloromethane | 0.6000 µg/L 12% of the EPA limit 5 µg/L Main supplier: CAL AM WATER COMPANY - MONTEREY · 92,450 people · 2019
Highest in the ZIP: 7.76 µg/L — CANADA WOODS WC · 356 people · 2019 | 2/3 | SYR4 |
| Bromate | 6 µg/L 60% of the EPA limit 10 µg/L Main supplier: CAL AM WATER COMPANY - MONTEREY · 92,450 people · 2019 | 1/3 | SYR4 |
| Gross Beta Particle Activity | 4.05 pCi/L No EPA limit set Main supplier: CAL AM WATER COMPANY - MONTEREY · 92,450 people · 2012
Highest in the ZIP: 5.74 pCi/L — KOHALA RANCH WATER CO. · 850 people · 2019 | 2/3 | SYR4 |
| Combined Uranium | 4.97288 µg/L 17% of the EPA limit 30 µg/L Main supplier: CAL AM WATER COMPANY - MONTEREY · 92,450 people · 2018 | 2/3 | SYR4 |
| Dibromoacetic Acid | 4.9 µg/L No EPA limit set Main supplier: CAL AM WATER COMPANY - MONTEREY · 92,450 people · 2019 | 2/3 | SYR4 |
| Gross Alpha, Excl. Radon And U | 4.4 pCi/L 29% of the EPA limit 15 pCi/L Highest in the ZIP: KOHALA RANCH WATER CO. · 850 people · 2019 | 1/3 | SYR4 |
| Monobromoacetic Acid | 2.62 µg/L No EPA limit set Main supplier: CAL AM WATER COMPANY - MONTEREY · 92,450 people · 2019 | 2/3 | SYR4 |
| Cadmium | 1 µg/L 20% of the EPA limit 5 µg/L Main supplier: CAL AM WATER COMPANY - MONTEREY · 92,450 people · 2019
Highest in the ZIP: 2 µg/L — CANADA WOODS WC · 356 people · 2019 | 2/3 | SYR4 |
| Antimony, Total | 1 µg/L 17% of the EPA limit 6 µg/L Highest in the ZIP: CANADA WOODS WC · 356 people · 2019 | 1/3 | SYR4 |
| Di(2-ethylhexyl) Phthalate | 0.7000 µg/L 12% of the EPA limit 6 µg/L Main supplier: CAL AM WATER COMPANY - MONTEREY · 92,450 people · 2016 | 1/3 | SYR4 |
| Tetrachloroethylene | 0.7000 µg/L 14% of the EPA limit 5 µg/L Main supplier: CAL AM WATER COMPANY - MONTEREY · 92,450 people · 2019 | 1/3 | SYR4 |
| Asbestos | 0.1980 MFL 2.8% of the EPA limit 7 MFL Highest in the ZIP: CANADA WOODS WC · 356 people · 2019 | 1/3 | SYR4 |
| PFBS | 0.0132 µg/L No EPA limit set Main supplier: CAL AM WATER COMPANY - MONTEREY · 92,450 people · 2023 | 1/3 | UCMR-5 |
| Lead | 0.0020 mg/L 13% of the EPA limit 0.0150 mg/L Main supplier: CAL AM WATER COMPANY - MONTEREY · 92,450 people · 2025
Highest in the ZIP: 0.0107 mg/L — KOHALA RANCH WATER CO. · 850 people · 2021 | 3/3 | LCR |
| Pfhxa | 0.0093 µg/L No EPA limit set Main supplier: CAL AM WATER COMPANY - MONTEREY · 92,450 people · 2023 | 1/3 | UCMR-5 |
| Pfpea | 0.0092 µg/L No EPA limit set Main supplier: CAL AM WATER COMPANY - MONTEREY · 92,450 people · 2023 | 1/3 | UCMR-5 |
| PFHXS | 0.0087 µg/L No EPA limit set Main supplier: CAL AM WATER COMPANY - MONTEREY · 92,450 people · 2023 | 1/3 | UCMR-5 |
| PFOA | 0.0081 µg/L No EPA limit set Main supplier: CAL AM WATER COMPANY - MONTEREY · 92,450 people · 2023 | 1/3 | UCMR-5 |
| PFOS | 0.0073 µg/L No EPA limit set Main supplier: CAL AM WATER COMPANY - MONTEREY · 92,450 people · 2023 | 1/3 | UCMR-5 |
| Pfba | 0.0050 µg/L No EPA limit set Main supplier: CAL AM WATER COMPANY - MONTEREY · 92,450 people · 2023 | 1/3 | UCMR-5 |
| Pfhpa | 0.0036 µg/L No EPA limit set Main supplier: CAL AM WATER COMPANY - MONTEREY · 92,450 people · 2023 | 1/3 | UCMR-5 |
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 93923
| Supplier | State | Population served |
|---|---|---|
| CAL AM WATER COMPANY - MONTEREY | CA | 92,450 |
| KOHALA RANCH WATER CO. | HI | 850 |
| CANADA WOODS WC | CA | 356 |
Frequently asked questions about ZIP 93923 tap water
Is the tap water in ZIP 93923 safe to drink?
EPA testing detected 45 contaminants across the water suppliers serving ZIP 93923. 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 93923?
3 public water suppliers report EPA drinking-water monitoring for ZIP 93923. Each is listed above with its population served.
What contaminants are in ZIP 93923's water?
EPA monitoring detected Nitrate-Nitrite, Nitrate, Nitrite, Fluoride, Copper, and others across this ZIP's suppliers. The full list with levels and sources is above.