Oldsmar Water System, FL
Lead detected, under the action levels
Latest 90th-percentile lead: 2.6 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.
About Oldsmar Water System
Oldsmar Water System serves about 14,898 people through 5,671 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 Pinellas County, Florida. EPA system ID: FL6521417; phone on file: 813-749-1134. Call that number and ask whether your address has a lead, galvanized or unknown service line.
Lead results over time
That is up 1.5 ppb from 1.1 ppb in the period ending 2020. The highest 90th-percentile result EPA holds for Oldsmar Water System is 2.6 ppb across 3 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2023 | 2.6 ppb |
| 2020 | 1.1 ppb |
| 2017 | 0 (not detected) |
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. Oldsmar Water System's 2.6 ppb sits at the 79th percentile in Florida and the 78th nationally (higher means more lead).
Other water systems in Pinellas County
11 other systems share Pinellas County; 0 of them have a higher latest lead result than Oldsmar Water System. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Pinellas County Utilities | 506,353 | 0.8 ppb |
| St Petersburg, City Of | 349,979 | 1.8 ppb |
| Clearwater Water System | 115,000 | 2.5 ppb |
| Pinellas Park Water Dept | 48,939 | 0.5 ppb |
| Dunedin Water System | 46,161 | 1.5 ppb |
| Tarpon Springs Water System | 28,875 | 1.6 ppb |
| Safety Harbor Water Dept | 16,473 | 0.6 ppb |
| Gulfport Water System | 12,600 | 1.4 ppb |
| Belleair Water Plant | 5,299 | 1.6 ppb |
| Lake Tarpon Mobile Home Villag | 1,799 | 0 (not detected) |
What to do in your house
Test your own tap with a certified lab first-draw sample; Oldsmar, 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 Oldsmar Water System 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. Systems that went over once often dip back under; here is what that means.