What was found in ZIP 41143
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 | 860 µg/L 22% of the EPA limit 4000 µg/L Main supplier: ASHLAND WATER WORKS · 44,402 people · 2019
Highest in the ZIP: 1045 µg/L — GRAYSON UTILITY COMMISSION · 10,950 people · 2019 | 3/4 | SYR4 |
| Nitrate | 800 µg/L 8% of the EPA limit 10000 µg/L Main supplier: ASHLAND WATER WORKS · 44,402 people · 2019 | 3/4 | SYR4 |
| Nitrate-Nitrite | 270 µg/L 2.7% of the EPA limit 10000 µg/L Highest in the ZIP: GRAYSON UTILITY COMMISSION · 10,950 people · 2014 | 2/4 | SYR4 |
| Copper | 162.5 µg/L 13% of the EPA limit 1300 µg/L Main supplier: ASHLAND WATER WORKS · 44,402 people · 2019 | 4/4 | SYR4 |
| TTHM | 120.35 µg/L 150% of the EPA limit, at the 95th percentile of samples — 80 µg/L Main supplier: ASHLAND WATER WORKS · 44,402 people · 2019
Highest in the ZIP: 125.945 µg/L — BIG SANDY WATER DISTRICT · 13,044 people · 2019 | 4/4 | SYR4 |
| Total Haloacetic Acids (HAA5) | 66.475 µg/L 111% of the EPA limit, at the 95th percentile of samples — 60 µg/L Main supplier: ASHLAND WATER WORKS · 44,402 people · 2019
Highest in the ZIP: 88.66 µg/L — RATTLESNAKE RIDGE WATER DISTRICT · 11,397 people · 2019 | 4/4 | SYR4 |
| Barium | 42.55 µg/L 2.1% of the EPA limit 2000 µg/L Main supplier: ASHLAND WATER WORKS · 44,402 people · 2019 | 3/4 | SYR4 |
| Lithium | 23.1 µg/L No EPA limit set Highest in the ZIP: BIG SANDY WATER DISTRICT · 13,044 people · 2024 | 1/4 | UCMR-5 |
| Lead | 11.85 µg/L 79% of the EPA limit 15 µg/L Main supplier: ASHLAND WATER WORKS · 44,402 people · 2017 | 4/4 | SYR4 |
| Gross Alpha, Excl. Radon And U | 6.77 pCi/L 45% of the EPA limit 15 pCi/L Main supplier: ASHLAND WATER WORKS · 44,402 people · 2013 | 1/4 | SYR4 |
| Chromium | 5.6 µg/L 5.6% of the EPA limit 100 µg/L Main supplier: ASHLAND WATER WORKS · 44,402 people · 2019 | 1/4 | SYR4 |
| Combined Radium (-226 And -228) | 3.1625 pCi/L 63% of the EPA limit 5 pCi/L Main supplier: ASHLAND WATER WORKS · 44,402 people · 2016 | 3/4 | SYR4 |
| Di(2-ethylhexyl) Phthalate | 2 µg/L 33% of the EPA limit 6 µg/L Main supplier: ASHLAND WATER WORKS · 44,402 people · 2019 | 1/4 | SYR4 |
| Arsenic | 0.5000 µg/L 5% of the EPA limit 10 µg/L Main supplier: ASHLAND WATER WORKS · 44,402 people · 2019 | 1/4 | SYR4 |
| Mercury | 0.2950 µg/L 15% of the EPA limit 2 µg/L Main supplier: ASHLAND WATER WORKS · 44,402 people · 2019 | 1/4 | SYR4 |
| Total Polychlorinated Biphenyls (PCB) | 0.1290 µg/L 26% of the EPA limit 0.5000 µg/L Highest in the ZIP: GRAYSON UTILITY COMMISSION · 10,950 people · 2018 | 1/4 | SYR4 |
| Thallium, Total | 0.1000 µg/L 5% of the EPA limit 2 µg/L Highest in the ZIP: GRAYSON UTILITY COMMISSION · 10,950 people · 2019 | 1/4 | SYR4 |
| Hexachlorocyclopentadiene | 0.0810 µg/L 0.2% of the EPA limit 50 µg/L Highest in the ZIP: GRAYSON UTILITY COMMISSION · 10,950 people · 2018 | 1/4 | SYR4 |
| Hfpo-Da | 0.0250 µg/L No EPA limit set Highest in the ZIP: BIG SANDY WATER DISTRICT · 13,044 people · 2024 | 1/4 | UCMR-5 |
| Pfpea | 0.0240 µg/L No EPA limit set Main supplier: ASHLAND WATER WORKS · 44,402 people · 2025 | 2/4 | UCMR-5 |
| Lead | 0.0140 mg/L 93% of the EPA limit 0.0150 mg/L Main supplier: ASHLAND WATER WORKS · 44,402 people · 2023 | 4/4 | LCR |
| PFBS | 0.0037 µg/L No EPA limit set Highest in the ZIP: BIG SANDY WATER DISTRICT · 13,044 people · 2024 | 1/4 | 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 41143
| Supplier | State | Population served |
|---|---|---|
| ASHLAND WATER WORKS | KY | 44,402 |
| BIG SANDY WATER DISTRICT | KY | 13,044 |
| RATTLESNAKE RIDGE WATER DISTRICT | KY | 11,397 |
| GRAYSON UTILITY COMMISSION | KY | 10,950 |
Frequently asked questions about ZIP 41143 tap water
Is the tap water in ZIP 41143 safe to drink?
EPA testing detected 22 contaminants across the water suppliers serving ZIP 41143. 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 41143?
4 public water suppliers report EPA drinking-water monitoring for ZIP 41143. Each is listed above with its population served.
What contaminants are in ZIP 41143'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.