PlainWater
Counties → Mississippi

Harrison County, Mississippi

Water Systems
52
Population Served
193,791
Total Violations
15,513
120 health-based
PFAS Detected
9
of 11 tested

Violation Analysis

82.7%
Systems with Violations
298.3
Avg Violations per System
0.8%
Health-Based Violations

Water Source Types

GW
50 systems (96%)

PFAS Contamination

11
Systems Tested
9
PFAS Detected
81.8%
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

Harrison Mississippi water systems by violation status, EPA SDWIS records.

No violations on record (7) One or more violations (43)

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 Gulfport 75,056 1,598 Clean
City of Biloxi 23,310 1,315 Clean
City of Long Beach 18,514 940 Clean
Diberville W/S 12,721 930 Clean
City of Pass Christian 10,436 518 Clean
City of Biloxi-North 9,858 513 Clean
Keesler Air Force Base 8,006 2,534 Detected
City of Biloxi-French 4,968 365 Clean
Riverbend Utilities Inc 4,834 296 Clean
Naval Construction Battal Ctr 3,347 815 Clean
Woolmarket Village Estates 2,910 605 -
Saucier Utilities 1,853 537 -
Diberville High School 1,599 12 -
Harrison Central High School 1,573 26 -
West Harrison High School 1,385 4 -
Robinwood Forest Utility Inc 1,275 524 -
Sutter Water Service-Magnolia Springs 1,201 2 -
Lakewood Environmental 982 297 -
The Oaks Utilities 797 241 -
Bernard Bayou Industrial District 779 19 -
West Harrison Water & Sewer District 689 0 -
St Patrick High School 650 12 -
The Chemours Company Fc, LLC 630 13 -
Palmer Creek Utility Assc, Inc 570 265 Clean
Echcpud-Tradition Subdivision 557 7 -
Sutter Water Service, Inc 500 1 -
Wolf River RV Resort 475 10 -
Lizana Elementary School 461 18 -
Cedar Lake Biloxi, LLC 422 276 -
Deerwood Utilities 404 226 -
Hcua-East 404 4 -
Pass Christian Isles 399 814 -
McGill Wellworks, Inc 370 378 -
Ridgecrest Estates 350 217 -
The Woods 285 163 -
Pineville Elementary School 173 4 -
Hcua-West 172 0 -
Echcpud-Desoto Trails Subdivision 166 4 -
Pineville Project III South 100 215 -
Cousins Foodmart 100 56 -
Tuxachanie Estates #2 95 251 -
Knollwood 87 249 -
City of Biloxi-Magnolia Bend 73 224 -
Clc Enterprises 50 12 -
Lakeview RV Resort 50 0 -
Fallen Oaks Golf Course 40 3 -
West Harrison Wtr & Sewer Dist #2 40 0 -
County Farm RD Hurricane Shelter 25 0 -
Saucier Hurricane Shelter 25 0 -
Lobouy Road Hurricane Shelter 25 0 -

Other Counties in Mississippi

Hinds County
29 systems · 297,741 served · 13,146 violations
DeSoto County
23 systems · 202,603 served · 5,185 violations
Rankin County
36 systems · 185,902 served · 24,667 violations
Jackson County
36 systems · 149,196 served · 11,232 violations
Madison County
17 systems · 129,931 served · 7,946 violations
Forrest County
16 systems · 89,526 served · 9,982 violations

Drinking Water Guides

Frequently Asked Questions

How many water violations are in Harrison County? ▼
Harrison County has 15,513 total drinking water violations across 52 water systems, of which 120 are health-based violations. 82.7% of systems have at least one violation.
How many people get water from Harrison County systems? ▼
Water systems in Harrison County serve approximately 193,791 people through 52 public water systems.
Has PFAS been detected in Harrison County water? ▼
Of 11 water systems tested for PFAS in Harrison County, 9 had PFAS detected (81.8% detection rate).
What types of water sources supply Harrison County? ▼
Water systems in Harrison 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. 0.8% of Harrison 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.