What Vinyl Chloride is, and why it's regulated
What the EPA limit means
2 µg/L
Maximum Contaminant Level — the enforceable ceiling a supplier must stay under.
0.0 µg/L
Health goal (MCLG) — the level with no known health effect. It is a goal, not a legal limit, and is often zero for carcinogens.
SYR4
Where these measurements come from. Hover the tag for the EPA programme and years.
Where Vinyl Chloride was found
The water suppliers reporting the highest levels, worst first. For lead and copper that is the 90th-percentile result the action level is written against; for Six-Year Review data, the 95th percentile of each system's samples.
| Supplier | City | State | Level vs EPA limit |
|---|---|---|---|
| Okarche Rwd, Inc | Okarche | OK | 20.75 µg/L 1038% of the EPA limit, at the 95th percentile of samples — 2 µg/L |
| Nokomis | Nokomis | IL | 19.4 µg/L 970% of the EPA limit, at the 95th percentile of samples — 2 µg/L |
| Stuart, City of - Water Plant | Stuart | FL | 17.8 µg/L 890% of the EPA limit, at the 95th percentile of samples — 2 µg/L |
| Sauk | Sauk | IL | 7.678 µg/L 384% of the EPA limit, at the 95th percentile of samples — 2 µg/L |
| Wayne Water Districts | Goldsboro | NC | 5.4 µg/L 270% of the EPA limit, at the 95th percentile of samples — 2 µg/L |
| Kinston, City of | Kinston | NC | 4.25 µg/L 213% of the EPA limit, at the 95th percentile of samples — 2 µg/L |
| Franklin Co Rwd 4 | Williamsburg | KS | 4 µg/L 200% of the EPA limit, at the 95th percentile of samples — 2 µg/L |
| Crestview Estates S/D | Blowing Rock | NC | 3.7 µg/L 185% of the EPA limit, at the 95th percentile of samples — 2 µg/L |
| Freeland Boro Muni Water Auth | Freeland | PA | 3.6 µg/L 180% of the EPA limit, at the 95th percentile of samples — 2 µg/L |
| Wooster City Pws | Wooster | OH | 3.4 µg/L 170% of the EPA limit, at the 95th percentile of samples — 2 µg/L |
| Coalby Domestic Wc | Cedaredge | CO | 3.2 µg/L 160% of the EPA limit, at the 95th percentile of samples — 2 µg/L |
| Jonah Water Sud | Hutto | TX | 3.2 µg/L 160% of the EPA limit, at the 95th percentile of samples — 2 µg/L |
| Riviera Beach Utility District, City of | Riviera Beach | FL | 2.8165 µg/L 141% of the EPA limit, at the 95th percentile of samples — 2 µg/L |
| White Lake, Town of | White Lake | NC | 2.3 µg/L 115% of the EPA limit, at the 95th percentile of samples — 2 µg/L |
| Hoosick Falls (V) Pws | Hoosick Falls | NY | 2.285 µg/L 114% of the EPA limit, at the 95th percentile of samples — 2 µg/L |
| Fairfield Sapphire | Cashiers | NC | 2.2 µg/L 110% of the EPA limit, at the 95th percentile of samples — 2 µg/L |
| Hempstead | Hempstead | NY | 2.2 µg/L 110% of the EPA limit, at the 95th percentile of samples — 2 µg/L |
| Pine Valley Plantation | Belchertown | MA | 2.143 µg/L 107% of the EPA limit, at the 95th percentile of samples — 2 µg/L |
| Saint Louis Park | St. Louis Park | MN | 2.13 µg/L 107% of the EPA limit, at the 95th percentile of samples — 2 µg/L |
| Rison Waterworks | Rison | AR | 1.93 µg/L 97% of the EPA limit 2 µg/L |
| Hicksville Wd | Oyster Bay | NY | 1.925 µg/L 96% of the EPA limit 2 µg/L |
| Hollywood, City of | Hollywood | FL | 1.9 µg/L 95% of the EPA limit 2 µg/L |
| Wa of Western Nassau | North Hempstead | NY | 1.8 µg/L 90% of the EPA limit 2 µg/L |
| Charter Oak Water Supply | Charter Oak | IA | 1.7 µg/L 85% of the EPA limit 2 µg/L |
| Midvale City Water System | — | UT | 1.7 µg/L 85% of the EPA limit 2 µg/L |
Frequently asked questions about Vinyl Chloride
What is Vinyl Chloride in drinking water?
Vinyl chloride comes from PVC pipe and plastics manufacture; it is a known human carcinogen.
What is the EPA limit for Vinyl Chloride?
The EPA's Maximum Contaminant Level for Vinyl Chloride is 2 µg/L, and its health goal (MCLG) is 0.0 µg/L. A result above the limit means the supplier must act; the goal is the level at which no health effects are expected.
How common is Vinyl Chloride in US tap water?
Of the 34,468 water suppliers with results on file, 105 detected Vinyl Chloride — 0.3% of those tested.