Prospect Bay, 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.
Prospect Bay at a glance
Prospect Bay serves about 913 people through 315 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 Queen Anne'S County, Maryland. EPA system ID: MD0170009; phone on file: 410-643-3535. Ask them for your address in their service line inventory - every system had to publish one by Oct 2024.
Every lead result on file
Against the period ending 2021 (0 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Prospect Bay is 0 ppb across 3 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2024 | 0 (not detected) |
| 2021 | 0 (not detected) |
| 2018 | 0 (not detected) |
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. Prospect Bay's reported as 0 (not detected) sits at the 38th percentile in Maryland and the 26th nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Other water systems in Queen Anne'S County
15 other systems share Queen Anne'S County; 3 of them have a higher latest lead result than Prospect Bay. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Stevensville | 9,155 | 0 (not detected) |
| Town Of Centreville | 3,322 | 5 ppb |
| Bayside-Queenslanding | 1,030 | - |
| Town Of Queenstown | 705 | 0 (not detected) |
| Oyster Cove | 600 | 0 (not detected) |
| Bridge Pointe-Kent Island Village | 600 | - |
| Grasonville | 600 | 0 (not detected) |
| Town Of Sudlersville | 497 | 0 (not detected) |
| Beach Harbor | 481 | 0 (not detected) |
| Pine Springs Mhp | 160 | 0 (not detected) |
What to do in your house
Look up your address in Prospect Bay'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 Prospect Bay 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. A zero today does not rule out a jump later - the rules are tightening in 2027.