What the EPA limit means
5 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 1,2-Dichloropropane 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 |
|---|---|---|---|
| Bass Mh Court | Nashville | NC | 8.985 µg/L 180% of the EPA limit, at the 95th percentile of samples — 5 µg/L |
| Heidel Rd Apts 152 | Thiensville | WI | 6.9 µg/L 138% of the EPA limit, at the 95th percentile of samples — 5 µg/L |
| Midvale City Water System | — | UT | 5.5 µg/L 110% of the EPA limit, at the 95th percentile of samples — 5 µg/L |
| Tyler Farms S/D | Garner | NC | 5.175 µg/L 103% of the EPA limit, at the 95th percentile of samples — 5 µg/L |
| Merrimon Water System | Merrimon | NC | 5 µg/L 100% of the EPA limit 5 µg/L |
| Lassiter Farms S/D | Garner | NC | 4.76 µg/L 95% of the EPA limit 5 µg/L |
| Grissom Farm S/D | Garner | NC | 3.84 µg/L 77% of the EPA limit 5 µg/L |
| Jericho Wd | Oyster Bay | NY | 3.5 µg/L 70% of the EPA limit 5 µg/L |
| Harmony Homes | Altamonte Springs | FL | 2.98 µg/L 60% of the EPA limit 5 µg/L |
| Woods of Ashbury Sd | Raleigh | NC | 2.94 µg/L 59% of the EPA limit 5 µg/L |
| Cal/Am Water Company - San Marino | Rosemead | CA | 2.77 µg/L 55% of the EPA limit 5 µg/L |
| Bay Laurel S/D | Wake Forest | NC | 2.67 µg/L 53% of the EPA limit 5 µg/L |
| Shady Acres Mh Village | Knightdale | NC | 2.58 µg/L 52% of the EPA limit 5 µg/L |
| Turner Farms V Master System | Garner | NC | 2.54 µg/L 51% of the EPA limit 5 µg/L |
| Lucama, Town of | Lucama | NC | 2.21 µg/L 44% of the EPA limit 5 µg/L |
| South San Joaquin Irrigation District | — | CA | 2.2 µg/L 44% of the EPA limit 5 µg/L |
| Hoke Landing S/D | Garner | NC | 2.1 µg/L 42% of the EPA limit 5 µg/L |
| Immokalee Water | Immokalee | FL | 1.855 µg/L 37% of the EPA limit 5 µg/L |
| Braxton Pointe S/D | Garner | NC | 1.73 µg/L 35% of the EPA limit 5 µg/L |
| Hicksville Wd | Oyster Bay | NY | 1.58 µg/L 32% of the EPA limit 5 µg/L |
| Rowland Pond S/D | Willow Springs | NC | 1.56 µg/L 31% of the EPA limit 5 µg/L |
| Lakeview Park Water Assn | Quincy | WA | 1.48 µg/L 30% of the EPA limit 5 µg/L |
| Dallas Acres | Garner | NC | 1.34 µg/L 27% of the EPA limit 5 µg/L |
| Jefferson, Town of | Jefferson | NC | 1.3 µg/L 26% of the EPA limit 5 µg/L |
| Sumter-Wessex S/D (sc4350016) | Sumter | SC | 1.29 µg/L 26% of the EPA limit 5 µg/L |
Frequently asked questions about 1,2-Dichloropropane
What is 1,2-Dichloropropane in drinking water?
1,2-Dichloropropane 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 1,2-Dichloropropane?
The EPA's Maximum Contaminant Level for 1,2-Dichloropropane is 5 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 1,2-Dichloropropane in US tap water?
Of the 34,528 water suppliers with results on file, 107 detected 1,2-Dichloropropane — 0.3% of those tested.