Rolling Acres, MD
Lead reported as not detected
Latest 90th-percentile lead: reported as 0 (not detected) (monitoring period 2022-2024). 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.
Who runs the water here
Rolling Acres serves about 699 people through 257 service connections, which makes it a small system under EPA's size classes. It is owned by a local government (city, town, county or district) and draws groundwater, in St. Mary'S County, Maryland. EPA system ID: MD0180017; phone on file: 240-925-3139. Call that number and ask whether your address has a lead, galvanized or unknown service line.
Rolling Acres's lead record
That is up 2 ppb from -2 ppb in the period ending 2017. The highest 90th-percentile result EPA holds for Rolling Acres is 0 ppb across 2 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2024 | 0 (not detected) |
| 2017 | -2 ppb |
How Rolling Acres compares
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. Rolling Acres's reported as 0 (not detected) sits at the 35th percentile in Maryland and the 24th nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Neighbouring systems
36 other systems share St. Mary'S County; 5 of them have a higher latest lead result than Rolling Acres. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Lexington Park | 43,030 | 0 (not detected) |
| Patuxent Naval Air Station (Navfac-Wash) | 22,000 | 0 (not detected) |
| Town Of Leonardtown | 5,000 | 0 (not detected) |
| Country Lakes | 3,016 | 0 (not detected) |
| Cedar Cove | 2,728 | 0 (not detected) |
| Saint Marys College | 2,200 | 0 (not detected) |
| Wicomico Shores | 1,262 | 0 (not detected) |
| Greenbrier | 1,161 | 0 (not detected) |
| Breton Bay | 1,012 | 0 (not detected) |
| Lord Calvert Trailer Park | 892 | 0 (not detected) |
What to do in your house
Look up your address in Rolling Acres'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 Rolling Acres 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. Why sampled homes are the worst-case ones is in the guide to reading the number. Small systems behave differently: why small systems go over more often.