Seminole County Northeast, FL
Lead reported as not detected
Latest 90th-percentile lead: reported as 0 (not detected) (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. 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
Seminole County Northeast serves about 19,925 people through 5,415 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: FL3590473; phone on file: 407-665-2759. Ask them for your address in their service line inventory - every system had to publish one by Oct 2024.
Every lead result on file
That is down 3.5 ppb from 3.5 ppb in the period ending 2020. The highest 90th-percentile result EPA holds for Seminole County Northeast is 3.5 ppb across 6 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2023 | 0 (not detected) |
| 2020 | 3.5 ppb |
| 2019 | 0 (not detected) |
| 2018 | 1.5 ppb |
| 2017 | 2.2 ppb |
| 2016 | 2.4 ppb |
How Seminole County Northeast compares
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 Northeast's reported as 0 (not detected) sits at the 24th percentile in Florida and the 38th nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Neighbouring systems
37 other systems share Seminole County; 20 of them have a higher latest lead result than Seminole County Northeast. 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 |
| Seminole County Southeast | 70,040 | 1.2 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 |
| Lake Mary, City Of | 17,066 | 2.1 ppb |
What to do in your house
Look up your address in Seminole County Northeast'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 Seminole County Northeast 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. A zero today does not rule out a jump later - the rules are tightening in 2027.