Reliance Mobile Home Park, MD
Exceeded the action level in the past
Latest 90th-percentile lead: reported as 0 (not detected) (monitoring period 2023-2025). The federal action level is 15 ppb today and drops to 10 ppb in Nov 2027; EPA's health goal is 0. The latest result is under the action level, but this system has gone over 15 ppb before. Lead comes from pipes, not the source water, so a home with a lead service line can still be exposed. Test your own tap.
About Reliance Mobile Home Park
Reliance Mobile Home Park serves about 200 people through 75 service connections, which makes it a very small system under EPA's size classes. It is privately owned and draws groundwater, in Dorchester County, Maryland. EPA system ID: MD0090221. Ask the utility on your bill for your address in their service line inventory.
Reliance Mobile Home Park's lead record
Against the period ending 2022 (0 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Reliance Mobile Home Park is 41 ppb across 7 monitoring periods, 1 of them over the 15 ppb action level.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 0 (not detected) |
| 2022 | 0 (not detected) |
| 2021 | 0 (not detected) |
| 2020 | 0 (not detected) |
| 2020 | 0 (not detected) |
| 2018 | 41 ppb over 15 |
| 2016 | -5 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. Reliance Mobile Home Park's reported as 0 (not detected) sits at the 21st percentile in Maryland and the 15th nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Neighbouring systems
9 other systems share Dorchester County; 6 of them have a higher latest lead result than Reliance Mobile Home Park. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| City Of Cambridge Water | 15,000 | 4.1 ppb |
| Town Of Hurlock | 2,150 | 6.7 ppb |
| Town Of Vienna | 573 | 1.2 ppb |
| Town Of Secretary | 535 | 0 (not detected) |
| Town Of East New Market | 400 | 1.3 ppb |
| Bonnie Brook | 390 | 0 (not detected) |
| Lodgecliffe Distribution System | 300 | - |
| Dorchester Country Estates M.H.P. | 118 | 11.8 ppb |
| Heritage Mobile Home Park | 80 | 0.8 ppb |
Your move
Test your own tap with a certified lab first-draw sample; your state may offer free or low-cost kits through the utility. If your own line is lead, replacing the private side runs about $1,200-$12,300 (EPA average about $4,700). Ask Reliance Mobile Home Park whether it covers that cost before hiring anyone - many utilities now do. Its latest copper 90th percentile is 1600 ppb (copper action level 1,300 ppb).
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. Why an old exceedance still matters: over the limit before, under it now.