Lake Marian Shores, FL
Lead reported as not detected
Latest 90th-percentile lead: reported as 0 (not detected) (monitoring period 2024-2024). 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
Lake Marian Shores serves about 130 people through 82 service connections, which makes it a very small system under EPA's size classes. It is privately owned and draws groundwater, in Osceola County, Florida. EPA system ID: FL3494318; phone on file: 772-485-4793. Call that number and ask whether your address has a lead, galvanized or unknown service line.
Lead results over time
That is down 1.2 ppb from 1.2 ppb in the period ending 2024. The highest 90th-percentile result EPA holds for Lake Marian Shores is 3.6 ppb across 7 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2024 | 0 (not detected) |
| 2024 | 1.2 ppb |
| 2023 | 0 (not detected) |
| 2023 | 1 ppb |
| 2022 | 1 ppb |
| 2021 | 0 (not detected) |
| 2018 | 3.6 ppb |
Against other Florida systems
Of the 1,481 Florida systems with a lead result, the median latest reading is 1 ppb; 3 are over 15 ppb right now and 85 have gone over at some point. Lake Marian Shores's reported as 0 (not detected) sits at the 10th percentile in Florida and the 12th nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Other water systems in Osceola County
23 other systems share Osceola County; 15 of them have a higher latest lead result than Lake Marian Shores. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Toho Water Authority Eastern | 110,102 | 0.6 ppb |
| St. Cloud, City Of (3 Wps) | 82,752 | 2.1 ppb |
| Toho Water Authority-Poinciana System | 69,447 | 0.4 ppb |
| Toho Water Authority Western | 40,330 | 1.4 ppb |
| Enterprise Cdd (Consecutive) | 11,178 | 2 ppb |
| Harmony Cdd | 6,221 | 0.8 ppb |
| Pleasant Hill Lakes S/D | 2,957 | - |
| Twa Sunbridge Water Treatment Plant | 542 | 0.4 ppb |
| Hammock Pointe Utility Association Inc | 515 | 2 ppb |
| Floridian Rv Resort | 450 | 0 (not detected) |
Your move
Look up your address in Lake Marian Shores'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 Lake Marian Shores 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. What a 90th-percentile result does and does not tell you: how to read a lead result. Small systems behave differently: why small systems go over more often.