Potomac Heights, MD
Lead reported as not detected
Latest 90th-percentile lead: reported as 0 (not detected) (monitoring period 2021-2023). The federal action level is 15 ppb today and drops to 10 ppb in Nov 2027; EPA's health goal is 0. The latest 90th-percentile result was reported as 0 (not detected at the lab's limit). That says the sampled homes were low, not that your home has no lead service line. Check your utility's service line inventory for your address.
About Potomac Heights
Potomac Heights serves about 1,800 people through 484 service connections, which makes it a small system under EPA's size classes. It is privately owned and draws groundwater, in Charles County, Maryland. EPA system ID: MD0080038; phone on file: 301-743-3031. Ask them for your address in their service line inventory - every system had to publish one by Oct 2024.
Lead results over time
Against the period ending 2020 (0 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Potomac Heights is 0 ppb across 3 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2023 | 0 (not detected) |
| 2020 | 0 (not detected) |
| 2017 | -2 ppb |
Where this result ranks
Of the 437 Maryland systems with a lead result, the median latest reading is 0 ppb; 3 are over 15 ppb right now and 21 have gone over at some point. Potomac Heights's reported as 0 (not detected) sits at the 40th percentile in Maryland and the 30th nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Nearby utilities
48 other systems share Charles County; 22 of them have a higher latest lead result than Potomac Heights. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Waldorf - Charles County Dpw | 84,296 | 0 (not detected) |
| Town Of La Plata | 11,535 | 0 (not detected) |
| Bryans Road | 6,260 | 0 (not detected) |
| Town Of Indian Head | 4,100 | 0 (not detected) |
| Naval Support Facility, Indian Head | 3,321 | 5.7 ppb |
| Swan Point | 945 | 0 (not detected) |
| Cliffton On The Potomac | 744 | 0 (not detected) |
| Hunters Brooke/Falcon Ridge Subd | 614 | 0 (not detected) |
| Charles County Gardens Water | 551 | 1.8 ppb |
| Benedict | 376 | 0 (not detected) |
Your move
Look up your address in Potomac Heights's service line inventory. If it says lead, galvanized or unknown, test your tap. If your own line is lead, replacing the private side runs about $1,200-$12,300 (EPA average about $4,700). Ask Potomac Heights whether it covers that cost before hiring anyone - many utilities now do.
These figures describe homes the utility sampled, not your tap. Only your service line record or a test of your own water answers the question for your house. The lead result guide covers how utilities pick the homes they sample. Small systems behave differently: why small systems go over more often.