Sjcu-Cr214 Mainland Wtp, FL
Lead detected, under the action levels
Latest 90th-percentile lead: 0.6 ppb (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. 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
Sjcu-Cr214 Mainland Wtp serves about 66,953 people through 26,781 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 St. Johns County, Florida. EPA system ID: FL2554447; phone on file: 904-209-2703. Ask them for your address in their service line inventory - every system had to publish one by Oct 2024.
Lead results over time
Against the period ending 2021 (1.1 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Sjcu-Cr214 Mainland Wtp is 1.4 ppb across 5 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2024 | 0.6 ppb |
| 2021 | 1.1 ppb |
| 2018 | 0.2 ppb |
| 2018 | 0.8 ppb |
| 2017 | 1.4 ppb |
How Sjcu-Cr214 Mainland Wtp 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. Sjcu-Cr214 Mainland Wtp's 0.6 ppb sits at the 36th percentile in Florida and the 45th nationally (higher means more lead).
Other water systems in St. Johns County
19 other systems share St. Johns County; 10 of them have a higher latest lead result than Sjcu-Cr214 Mainland Wtp. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Sjcu-Northwest Utilities Wtp | 48,040 | 0 (not detected) |
| St. Augustine Ws | 43,069 | 0.8 ppb |
| Sjcu-Ponte Vedra Ws | 15,565 | 0.9 ppb |
| Sjcu-Northeast Utilities Ws | 14,790 | 1 ppb |
| Sjcu-Sawgrass Grid | 13,023 | 0.9 ppb |
| Jea: Ponte Vedra Grid | 5,395 | 0.8 ppb |
| Sjcu-North Beach Utilities | 4,200 | 0.6 ppb |
| Jea: Ponce De Leon Grid | 2,303 | 3.2 ppb |
| Sjcu-Hastings Wtp | 1,095 | 0 (not detected) |
| Jea: Palm Valley Ws | 965 | 0 (not detected) |
Next steps for St. Augustine, FL
Test your own tap with a certified lab first-draw sample; St. Augustine, 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 Sjcu-Cr214 Mainland Wtp 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. Why sampled homes are the worst-case ones is in the guide to reading the number. The action level is dropping - the 10 ppb rule from 2027.