Seminole County Southeast, FL
Lead detected, under the action levels
Latest 90th-percentile lead: 1.2 ppb (monitoring period 2023-2023). The federal action level is 15 ppb today and drops to 10 ppb in Nov 2027; EPA's health goal is 0. Lead was measured in sampled homes but the 90th percentile is under both action levels. EPA's health goal for lead is zero, so test your own tap if your home was built before 1986 or anyone in it is pregnant or a young child.
Who runs the water here
Seminole County Southeast serves about 70,040 people through 18,535 service connections, which makes it a large system under EPA's size classes. It is owned by a local government (city, town, county or district) and draws groundwater, in Seminole County, Florida. EPA system ID: FL3590571; phone on file: 407-665-2759. Call that number and ask whether your address has a lead, galvanized or unknown service line.
Every lead result on file
Against the period ending 2020 (1.5 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Seminole County Southeast is 5.4 ppb across 3 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2023 | 1.2 ppb |
| 2020 | 1.5 ppb |
| 2017 | 5.4 ppb |
Where this result ranks
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. Seminole County Southeast's 1.2 ppb sits at the 57th percentile in Florida and the 59th nationally (higher means more lead).
Other water systems in Seminole County
37 other systems share Seminole County; 13 of them have a higher latest lead result than Seminole County Southeast. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Sanford, City Of (2 Wps) | 79,715 | 0.8 ppb |
| Casselberry, City Of (3 Wps) | 54,747 | 0 (not detected) |
| Altamonte Springs Water Dept (2 Wps) | 51,000 | 0 (not detected) |
| Oviedo, City Of | 47,933 | 2.1 ppb |
| Sanlando (3 Wtps) | 36,953 | 1.5 ppb |
| Winter Springs, City Of (3 Wps) | 34,657 | 0.6 ppb |
| Seminole County Northwest | 31,986 | 0 (not detected) |
| Longwood, City Of (2 Wps) | 23,237 | 1.6 ppb |
| Seminole County Northeast | 19,925 | 0 (not detected) |
| Lake Mary, City Of | 17,066 | 2.1 ppb |
Your move
Test your own tap with a certified lab first-draw sample; Winter Park, FL 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 Seminole County Southeast 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. Systems that went over once often dip back under; here is what that means.