What was found in ZIP 41230
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 | 1065 µg/L 27% of the EPA limit 4000 µg/L Highest in the ZIP: MARTIN CO WATER DISTRICT #1 · 9,003 people · 2019 | 3/4 | SYR4 |
| Nitrate | 500 µg/L 5% of the EPA limit 10000 µg/L Highest in the ZIP: MARTIN CO WATER DISTRICT #1 · 9,003 people · 2019 | 3/4 | SYR4 |
| Nitrate-Nitrite | 390 µg/L 3.9% of the EPA limit 10000 µg/L Highest in the ZIP: LOUISA WATER DEPARTMENT · 8,236 people · 2014 | 3/4 | SYR4 |
| Copper | 100.95 µg/L 7.8% of the EPA limit 1300 µg/L Main supplier: BIG SANDY WATER DISTRICT · 13,044 people · 2019
Highest in the ZIP: 155 µg/L — LOUISA WATER DEPARTMENT · 8,236 people · 2019 | 4/4 | SYR4 |
| TTHM | 125.945 µg/L 157% of the EPA limit, at the 95th percentile of samples — 80 µg/L Main supplier: BIG SANDY WATER DISTRICT · 13,044 people · 2019
Highest in the ZIP: 151.555 µg/L — MARTIN CO WATER DISTRICT #1 · 9,003 people · 2019 | 4/4 | SYR4 |
| Total Haloacetic Acids (HAA5) | 84.5 µg/L 141% of the EPA limit, at the 95th percentile of samples — 60 µg/L Main supplier: BIG SANDY WATER DISTRICT · 13,044 people · 2019
Highest in the ZIP: 111.385 µg/L — MARTIN CO WATER DISTRICT #1 · 9,003 people · 2019 | 4/4 | SYR4 |
| Barium | 49 µg/L 2.5% of the EPA limit 2000 µg/L Highest in the ZIP: LOUISA WATER DEPARTMENT · 8,236 people · 2019 | 3/4 | SYR4 |
| Lithium | 23.1 µg/L No EPA limit set Main supplier: BIG SANDY WATER DISTRICT · 13,044 people · 2024
Highest in the ZIP: 36 µg/L — MARTIN CO WATER DISTRICT #1 · 9,003 people · 2023 | 3/4 | UCMR-5 |
| Lead | 3.54 µg/L 24% of the EPA limit 15 µg/L Main supplier: BIG SANDY WATER DISTRICT · 13,044 people · 2019
Highest in the ZIP: 6 µg/L — MARTIN CO WATER DISTRICT #1 · 9,003 people · 2017 | 4/4 | SYR4 |
| Combined Radium (-226 And -228) | 1.5 pCi/L 30% of the EPA limit 5 pCi/L Highest in the ZIP: RATTLESNAKE RIDGE WATER DISTRICT · 11,397 people · 2014 | 2/4 | SYR4 |
| Chromium | 1 µg/L 1% of the EPA limit 100 µg/L Highest in the ZIP: LOUISA WATER DEPARTMENT · 8,236 people · 2019 | 1/4 | SYR4 |
| Selenium | 1 µg/L 2% of the EPA limit 50 µg/L Highest in the ZIP: MARTIN CO WATER DISTRICT #1 · 9,003 people · 2019 | 2/4 | SYR4 |
| Di(2-ethylhexyl) Phthalate | 0.7300 µg/L 12% of the EPA limit 6 µg/L Highest in the ZIP: LOUISA WATER DEPARTMENT · 8,236 people · 2018 | 1/4 | SYR4 |
| Total Polychlorinated Biphenyls (PCB) | 0.1195 µg/L 24% of the EPA limit 0.5000 µg/L Highest in the ZIP: LOUISA WATER DEPARTMENT · 8,236 people · 2018 | 1/4 | SYR4 |
| Thallium, Total | 0.1000 µg/L 5% of the EPA limit 2 µg/L Highest in the ZIP: MARTIN CO WATER DISTRICT #1 · 9,003 people · 2019 | 1/4 | SYR4 |
| Hfpo-Da | 0.0250 µg/L No EPA limit set Main supplier: BIG SANDY WATER DISTRICT · 13,044 people · 2024 | 1/4 | UCMR-5 |
| PFBS | 0.0037 µg/L No EPA limit set Main supplier: BIG SANDY WATER DISTRICT · 13,044 people · 2024 | 1/4 | UCMR-5 |
| Pfpea | 0.0033 µg/L No EPA limit set Main supplier: BIG SANDY WATER DISTRICT · 13,044 people · 2024 | 1/4 | UCMR-5 |
| Lead | 0.0030 mg/L 20% of the EPA limit 0.0150 mg/L Main supplier: BIG SANDY WATER DISTRICT · 13,044 people · 2025 | 4/4 | 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 41230
| Supplier | State | Population served |
|---|---|---|
| BIG SANDY WATER DISTRICT | KY | 13,044 |
| RATTLESNAKE RIDGE WATER DISTRICT | KY | 11,397 |
| MARTIN CO WATER DISTRICT #1 | KY | 9,003 |
| LOUISA WATER DEPARTMENT | KY | 8,236 |
Frequently asked questions about ZIP 41230 tap water
Is the tap water in ZIP 41230 safe to drink?
EPA testing detected 19 contaminants across the water suppliers serving ZIP 41230. 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 41230?
4 public water suppliers report EPA drinking-water monitoring for ZIP 41230. Each is listed above with its population served.
What contaminants are in ZIP 41230's water?
EPA monitoring detected Fluoride, Nitrate, Nitrate-Nitrite, Copper, TTHM, and others across this ZIP's suppliers. The full list with levels and sources is above.