PlainWater
Counties → Tennessee

Johnson County, Tennessee

Water Systems
7
Population Served
11,467
Total Violations
832
211 health-based
PFAS Detected
1
of 1 tested

Violation Analysis

85.7%
Systems with Violations
118.9
Avg Violations per System
25.4%
Health-Based Violations

Water Source Types

GW
5 systems (71%)
SW
2 systems (29%)

PFAS Contamination

1
Systems Tested
1
PFAS Detected
100.0%
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

Johnson Tennessee water systems by violation status, EPA SDWIS records.

No violations on record (1) One or more violations (6)

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
Mountain City Water Dept 9,304 267 Detected
Carderview Utility District 1,130 262 -
Brownlow Utility District 683 193 -
Pioneer Landing 140 71 -
Dyson Grove Baptist Church 100 0 -
Sharpie's Restaurant 85 30 -
Shady Valley Country Store 25 9 -

Other Counties in Tennessee

Davidson County
4 systems · 924,319 served · 394 violations
Shelby County
8 systems · 822,834 served · 604 violations
Knox County
9 systems · 601,914 served · 406 violations
Rutherford County
5 systems · 433,004 served · 394 violations
Hamilton County
11 systems · 412,782 served · 324 violations
Montgomery County
7 systems · 344,788 served · 413 violations

Drinking Water Guides

Frequently Asked Questions

How many water violations are in Johnson County? ▼
Johnson County has 832 total drinking water violations across 7 water systems, of which 211 are health-based violations. 85.7% of systems have at least one violation.
How many people get water from Johnson County systems? ▼
Water systems in Johnson County serve approximately 11,467 people through 7 public water systems.
Has PFAS been detected in Johnson County water? ▼
Of 1 water systems tested for PFAS in Johnson County, 1 had PFAS detected (100.0% detection rate).
What types of water sources supply Johnson County? ▼
Water systems in Johnson County use GW (5 systems), SW (2 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. 25.4% of Johnson 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.