PlainWater
Counties → Maryland

Carroll County, Maryland

Water Systems
224
Population Served
132,585
Total Violations
3,560
1,702 health-based
PFAS Detected
6
of 6 tested

Violation Analysis

82.1%
Systems with Violations
15.9
Avg Violations per System
47.8%
Health-Based Violations

Water Source Types

GW
45 systems (20%)
SW
5 systems (2%)

PFAS Contamination

6
Systems Tested
6
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

Carroll Maryland water systems by violation status, EPA SDWIS records.

No violations on record (8) One or more violations (42)

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
City of Westminster 35,256 70 Detected
Freedom District 24,867 81 Detected
Town of Mount Airy 9,890 156 Detected
City of Taneytown 6,750 99 Detected
Town of Hampstead 6,600 21 Detected
Town of Manchester 4,954 140 Detected
Wakefield Valley 2,436 15 -
Town of New Windsor 1,732 21 -
Tevco Jiffy Mart 1,610 2 -
Springfield Hospital Distribution 1,500 104 -
South Carroll High School 1,250 113 -
Dunkin Donuts 1,000 0 -
Town of Union Bridge 997 26 -
Four Seasons Sports Complex 900 4 -
Royal Farms #113 900 0 -
Royal Farms #62 806 2 -
Links at Challedon 800 2 -
Seven-Eleven - Hampstead 800 3 -
Winfield Elementary 700 14 -
Runnymede Elementary 700 8 -
Patapsco State Park ( McKeldin A) 700 0 -
Jiffy Mart Finksburg 700 2 -
Sandymount Elementary 650 13 -
Mechanicsville Elementary 600 14 -
Ramblin Pines Campground 500 8 -
Little Georges (Winfield) 500 7 -
Seven-Eleven -Taylorsville 500 1 -
Fairhaven Park-Sykesville Baseball 500 5 -
B.t.r. Hampstead (Black and Decker) 472 46 -
Gaither Manor Apartments 450 74 -
South Carroll Swim Club 425 10 -
Keymar Convenience Store (Citgo) 410 4 -
Church of Jesus Christ of Lds - Mt Airy 400 4 -
Ruhlman Brewery, LLC 400 0 -
Gerstell Academy 350 0 -
Bullocks Country Family Restaurant 334 2 -
Pheasant Ridge Estates 300 48 -
Gamber & Community Fire Company 300 0 -
Piney Run Park Boat Dock-Lower Comfort 300 8 -
Winfield Inn 300 9 -
Carroll County Sports Complex 300 1 -
Piney Run Park Nature Center 300 6 -
Piney Run Park Tennis Court-Upper Comfor 300 3 -
Seven-Eleven - Finksburg 300 0 -
Highs #23 - Manchester 300 7 -
Finksburg Public Library 265 5 -
River Valley Ranch - Main Ranch/Kitchen 260 1 -
Mudgett Business Center 260 0 -
Hampstead Baptist Church 250 24 -
Buds at Silver Run 250 22 -

Other Counties in Maryland

Montgomery County
56 systems · 1,971,831 served · 1,796 violations
Baltimore city County
13 systems · 1,608,056 served · 122 violations
Anne Arundel County
425 systems · 567,204 served · 5,956 violations
Howard County
88 systems · 309,588 served · 985 violations
Harford County
238 systems · 217,578 served · 3,670 violations
Frederick County
220 systems · 215,362 served · 3,555 violations

Drinking Water Guides

Frequently Asked Questions

How many water violations are in Carroll County? ▼
Carroll County has 3,560 total drinking water violations across 224 water systems, of which 1,702 are health-based violations. 82.1% of systems have at least one violation.
How many people get water from Carroll County systems? ▼
Water systems in Carroll County serve approximately 132,585 people through 224 public water systems.
Has PFAS been detected in Carroll County water? ▼
Of 6 water systems tested for PFAS in Carroll County, 6 had PFAS detected (100.0% detection rate).
What types of water sources supply Carroll County? ▼
Water systems in Carroll County use GW (45 systems), SW (5 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. 47.8% of Carroll 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.