County · Florida
St. Johns County, Florida: drinking water records
This overview covers 10 ZIP codes and 22 community water systems in St. Johns County. It also stands in for 0 ZIP codes whose utility has too little EPA data for a page of its own.
System population figures are summed from EPA registry records and can overlap where wholesalers and retail systems serve the same people. They are not a Census county-population estimate.
Water systems with the most complete records
| Water system | People served | PFAS survey results | PFAS found | Health-based violations | Lead, 9 in 10 homes at or below |
|---|---|---|---|---|---|
| Sjcu-Cr214 Mainland WTP FL2554447 | 66,953 | 60 | 0 | 0 | 0.6 ppb |
| Sjcu-Northwest Utilities WTP FL2554471 | 48,040 | 60 | 0 | 0 | 0 ppb |
| St. Augustine Ws FL2550210 | 43,069 | 60 | 0 | 0 | 0.8 ppb |
| Sjcu-Ponte Vedra Ws FL2554343 | 15,565 | 120 | 0 | 0 | 0.9 ppb |
| Sjcu-Northeast Utilities Ws FL2554475 | 14,790 | 60 | 0 | 0 | 1 ppb |
| Sjcu-Sawgrass Grid FL2551004 | 13,023 | 120 | 4 | 0 | 0.9 ppb |
| Jea: Ponte Vedra Grid FL2550908 | 5,395 | 120 | 0 | 0 | 0.8 ppb |
| Sjcu-North Beach Utilities FL2550812 | 4,200 | 60 | 0 | 0 | 0.6 ppb |
| Wildwood Water Company FL2551370 | 858 | 0 | 0 | 1 | 2.3 ppb |
| Homeowners Utilities INC. FL2554337 | 345 | 0 | 0 | 1 | 12.7 ppb |
| Camachee Cove Yacht Harbor WTP FL2554166 | 312 | 0 | 0 | 1 | 0 ppb |
| Jea: Ponce de Leon Grid FL2554334 | 2,303 | 0 | 0 | 0 | 3.2 ppb |
| Sjcu-Hastings WTP FL2550476 | 1,095 | 0 | 0 | 0 | 0 ppb |
| Jea: Palm Valley Ws FL2550866 | 965 | 0 | 0 | 0 | 0 ppb |
| Sjcu-Eagle Creek Ws FL2554353 | 655 | 0 | 0 | 0 | 0 ppb |
| Sjcu-Fruit Cove Oaks Ws FL2550396 | 485 | 0 | 0 | 0 | 0.7 ppb |
| Bayside Estates WTP FL2554344 | 180 | 0 | 0 | 0 | 2.4 ppb |
| Houlton MHP LLC WI6560122 | 170 | 0 | 0 | 0 | 0 ppb |
| Sjcu-Bartram Oaks WTP FL2551120 | 150 | 0 | 0 | 0 | 0.5 ppb |
| St. Augustine RV Park (Fka Shamrock) FL2551459 | 96 | 0 | 0 | 0 | 0 ppb |
| Huntington Mobile Home Park WI6560128 | 52 | 0 | 0 | 0 | 0 ppb |
| Cypress Landing WTP FL2550250 | 38 | 0 | 0 | 0 | 0 ppb |
ZIP reports in St. Johns County
No ZIP report in this county is published yet.
Sources and scope
EPA UCMR 5 occurrence data, samples collected 2023-01-03 – 2026-06-17, final release, August 2026 (file dated Aug 28, 2026); EPA SDWIS via ECHO, 2026Q2 extract (file dated Jul 9, 2026); EPA service-area boundaries v3.0; Census 2020 ZCTAs. Page generated 2026-09-03.
Counts cover the systems that report this county to EPA. A water system may cross county lines. "Found" means at least one result at or above the laboratory reporting level; it is not a compliance finding.