What the EPA limit means
40 µg/L
Maximum Contaminant Level — the enforceable ceiling a supplier must stay under.
40 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 Methoxychlor was found
The water suppliers reporting the highest levels, worst first.
| Supplier | City | State | Level vs EPA limit |
|---|---|---|---|
| Valley of the Moon Water District | El Verano | CA | 110 µg/L 275% of the EPA limit, in the worst sample — 40 µg/L |
| City of Taneytown | Taneytown | MD | 0.9100 µg/L 2.3% of the EPA limit 40 µg/L |
| Town of Westernport | Westernport | MD | 0.8500 µg/L 2.1% of the EPA limit 40 µg/L |
| Huntingburg Municipal Water | Huntingburg | IN | 0.6500 µg/L 1.6% of the EPA limit 40 µg/L |
| Loomis, Village of | Loomis | NE | 0.4640 µg/L 1.2% of the EPA limit 40 µg/L |
| Lakeview Acres Lot Owners | Lexington | NE | 0.4120 µg/L 1% of the EPA limit 40 µg/L |
| Oglala Rws Pipeline | Pine Ridge | SD | 0.3100 µg/L 0.8% of the EPA limit 40 µg/L |
| Salem Water Works | Salem | IN | 0.3100 µg/L 0.8% of the EPA limit 40 µg/L |
| Greensburg Municipal Water Works | Greensburg | IN | 0.3000 µg/L 0.8% of the EPA limit 40 µg/L |
| Osgood Water Department | Osgood | IN | 0.2800 µg/L 0.7% of the EPA limit 40 µg/L |
| Dayspring Senior Living | Hilliard | FL | 0.2270 µg/L 0.6% of the EPA limit 40 µg/L |
| Waverly Water System | Lake Wales | FL | 0.2200 µg/L 0.5% of the EPA limit 40 µg/L |
| Bethel Water Dept | Danbury | CT | 0.2200 µg/L 0.5% of the EPA limit 40 µg/L |
| Waterbury Water Department | Wolcott | CT | 0.2200 µg/L 0.5% of the EPA limit 40 µg/L |
| Harris County Mud 130 | Houston | TX | 0.2100 µg/L 0.5% of the EPA limit 40 µg/L |
| Mcallen Public Utility | — | TX | 0.2000 µg/L 0.5% of the EPA limit 40 µg/L |
| North Point Johnson Lake | Elwood | NE | 0.1840 µg/L 0.5% of the EPA limit 40 µg/L |
| Rolling Acres S/D | Raleigh | NC | 0.1750 µg/L 0.4% of the EPA limit 40 µg/L |
| Harris County Mud 86 | Houston | TX | 0.1400 µg/L 0.4% of the EPA limit 40 µg/L |
| Palm and Pines Mobile Home Pk | Felda | FL | 0.1200 µg/L 0.3% of the EPA limit 40 µg/L |
| Pinckneyville | Pinckneyville | IL | 0.1100 µg/L 0.3% of the EPA limit 40 µg/L |
| Blackberry Hill | Southeast | NY | 0.1100 µg/L 0.3% of the EPA limit 40 µg/L |
| Aoa Asg | Aoa | AS | 0.1000 µg/L 0.3% of the EPA limit 40 µg/L |
| Washoe Tribe Stewart | Gardnerville | NV | 0.1000 µg/L 0.3% of the EPA limit 40 µg/L |
| Shelton Trailer Park | Salamanca | NY | 0.1000 µg/L 0.3% of the EPA limit 40 µg/L |
Frequently asked questions about Methoxychlor
What is Methoxychlor in drinking water?
Methoxychlor is monitored in US public drinking water under EPA rules. Each supplier's result is reported to the EPA and published here with its source and period.
What is the EPA limit for Methoxychlor?
The EPA's Maximum Contaminant Level for Methoxychlor is 40 µg/L, and its health goal (MCLG) is 40 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 Methoxychlor in US tap water?
Of the 26,256 water suppliers with results on file, 60 detected Methoxychlor — 0.2% of those tested.