PlainWater
Counties → Florida

St. Johns County, Florida

Water Systems
56
Population Served
221,945
Total Violations
1,953
176 health-based
PFAS Detected
5
of 8 tested

Violation Analysis

92.9%
Systems with Violations
34.9
Avg Violations per System
9.0%
Health-Based Violations

Water Source Types

GW
50 systems (89%)

PFAS Contamination

8
Systems Tested
5
PFAS Detected
62.5%
Detection Rate

PFAS (per- and polyfluoroalkyl substances) are persistent chemicals found in drinking water. The EPA has set enforceable limits for several PFAS compounds under UCMR5 monitoring.

Compliance Snapshot

St. Johns Florida water systems by violation status, EPA SDWIS records.

No violations on record (2) One or more violations (48)

Violation history is cumulative, many flagged systems have already returned to compliance. Detail pages show per-system context.

Water Systems

System Name Population Violations PFAS
Sjcu-Cr214 Mainland WTP 66,953 35 Clean
Sjcu-Northwest Utilities WTP 48,040 10 Clean
St. Augustine WS 43,069 30 Clean
Sjcu-Ponte Vedra WS 15,565 61 Clean
Sjcu-Northeast Utilities WS 14,790 21 Clean
Sjcu-Sawgrass Grid 13,023 43 Detected
Jea: Ponte Vedra Grid 5,395 29 Clean
Sjcu-North Beach Utilities 4,200 20 Clean
Jea: Ponce de Leon Grid 2,303 10 -
Sjcu-Hastings WTP 1,095 46 -
Jea: Palm Valley WS 965 71 -
Wildwood Water Company 858 240 -
Church of Jc Lds - St. Johns Bldg 783 2 -
Southwoods Elementary (Aka J-School) 660 7 -
Sjcu-Eagle Creek WS 655 3 -
Sjcu-Fruit Cove Oaks WS 485 18 -
Homeowners Utilities Inc. 345 122 -
Camachee Cove Yacht Harbor WTP 312 79 -
Mill Creek Baptist Church 250 8 -
Geneva Presbyterian Church 214 14 -
Bayside Estates WTP 180 83 -
Sjcu-Bartram Oaks WTP 150 117 -
Marywood Retreat ; Conf Center 150 15 -
Florida Citrus Center #10 150 4 -
Buddy Boys Country Store 100 26 -
4 Lakes Campground 100 0 -
St. Augustine RV Park (Fka Shamrock) 96 33 -
Hastings Labor Camp / Spuds 96 28 -
Faver-Dykes State Park 75 19 -
Marywood Retreat - Camp St. John 75 25 -
Victory Tabernacle 75 57 -
Our Lady of Good Counsel 70 0 -
Yu an Farms 41 1 -
Oak Haven Retirement Village 40 190 -
Elkton Academy 40 10 -
Cypress Landing WTP 38 89 -
Trinity Freedom Farm 30 12 -
Freeman-McDonald Migrant Camp 29 15 -
Pellicer Creek Campground 25 23 -
Mobile Stn/Sunshine Food Mart#1 (Fka Dq) 25 27 -
Outback Crab Shack 25 23 -
Weedman's Express 25 13 -
Weedman's General Store 25 10 -
Colee Cove Junction 25 28 -
Kangaroo Express #6084 (Fka Circle K) 25 16 -
Amity Marina, LLC 25 112 -
Fountain of Youth 25 5 -
Segovia Oaks (Fka Bayside Village) 25 10 -
Jim's Place 25 5 -
South Logan Housing 25 2 -

Other Counties in Florida

Miami-Dade County
167 systems · 3,325,406 served · 3,677 violations
Broward County
55 systems · 1,905,863 served · 4,156 violations
Hillsborough County
724 systems · 1,701,663 served · 27,775 violations
Orange County
114 systems · 1,615,975 served · 5,841 violations
Palm Beach County
71 systems · 1,538,245 served · 3,569 violations
Pinellas County
13 systems · 1,147,926 served · 410 violations

Drinking Water Guides

Frequently Asked Questions

How many water violations are in St. Johns County? ▼
St. Johns County has 1,953 total drinking water violations across 56 water systems, of which 176 are health-based violations. 92.9% of systems have at least one violation.
How many people get water from St. Johns County systems? ▼
Water systems in St. Johns County serve approximately 221,945 people through 56 public water systems.
Has PFAS been detected in St. Johns County water? ▼
Of 8 water systems tested for PFAS in St. Johns County, 5 had PFAS detected (62.5% detection rate).
What types of water sources supply St. Johns County? ▼
Water systems in St. Johns County use GW (50 systems) as their primary water sources.
Are health-based violations serious? ▼
Health-based violations indicate that drinking water exceeded Maximum Contaminant Levels (MCLs) set by the EPA or failed treatment technique requirements. 9.0% of St. Johns County's violations are health-based. Not all violations indicate immediate health risk, but they require corrective action.
Data Sources & Methodology

Drinking water violation data from the EPA Safe Drinking Water Information System (SDWIS). PFAS testing data from the UCMR5 monitoring program. SDWIS tracks all public water systems regulated under the Safe Drinking Water Act.

Violations are categorized as health-based (Maximum Contaminant Level exceedances, treatment technique failures) or monitoring/reporting violations. Not all violations indicate an immediate health risk.

Read our methodology - how this data is sourced, computed, and verified.

Data sourced from EPA SDWIS and UCMR5 PFAS monitoring data. See our methodology for details. Retrieved and formatted by PlainWater Editorial

Every figure on PlainWater is rendered directly from EPA SDWIS drinking-water data, no number is typed in by an editor. This page draws directly on EPA SDWIS data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.