PlainWater
Counties → Delaware

Sussex County, Delaware

Water Systems
251
Population Served
382,938
Total Violations
4,772
2,474 health-based
PFAS Detected
12
of 19 tested

Violation Analysis

73.7%
Systems with Violations
19.0
Avg Violations per System
51.8%
Health-Based Violations

Water Source Types

GW
50 systems (20%)

PFAS Contamination

19
Systems Tested
12
PFAS Detected
63.2%
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

Sussex Delaware water systems by violation status, EPA SDWIS records.

No violations on record (9) One or more violations (41)

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
Rehoboth Pump District (Tui) 81,417 9 Detected
Bethany Bay Pump District 51,000 11 Detected
Dewey Beach Water Department 31,000 4 Detected
Rehoboth Beach Water Department 25,000 0 Detected
Artesian Southern Sussex Regional 18,015 11 Detected
Sussex Shores Water Company 12,450 9 Clean
Bethany Beach Water Department 12,000 21 Clean
Long Neck Water Company 11,000 20 Clean
Lewes Board of Public Works 9,627 11 Detected
Millsboro Water Department 8,568 25 Clean
Bayside Pump District (Tui) 8,400 4 Detected
Georgetown Water Department 7,259 2 Detected
Seaford Water Department 6,699 23 Detected
Bridgeville Water Department 6,000 11 Clean
Artesian Northern Sussex Regional 5,511 2 Detected
Laurel Water Department 3,984 14 Clean
Selbyville Water Department 3,502 26 -
Milton Water Department 3,200 20 -
Broadkiln Beach Water Company (Tui) 3,171 28 -
Stockley Regional 2,761 0 -
Delmar Utility Comm (TN of Delmar) 2,027 11 Clean
Sussex Technical School District 1,800 12 -
Swann Keys 1,764 3 Clean
Gulls Way Campground 1,617 26 -
Rehoboth Bay Community 1,575 28 -
Bridgeville Pump District 1,542 5 -
Allen Harim Foods Inc 1,500 10 -
Perdue Foods LLC 1,500 0 -
Trap Pond State Park System 2-Nature Ctr 1,500 0 -
Mallard Lakes 1,500 0 -
Angola Beach Estates 1,400 20 -
Holly Lake Campsites System 2 1,375 9 -
Blades, Town Of 1,200 24 -
Mountaire-Millsboro 1,200 93 -
Trap Pond State Park System 3 - Camping 1,000 4 -
Greenwood Water Department 973 44 -
Dagsboro Water Dept 934 12 -
Laurel Village Mhc 918 21 -
DE-Lux Dairy Market - Seaford 916 30 -
Baywood Greens 909 0 -
Tuckahoe Acres System #2 900 12 -
Holly Lake Campsites System 3 900 9 -
Slaughter Beach PWS 846 4 -
Treasure Beach Campground System 1 786 0 -
Evelyn Morris Elementary School 780 0 -
Treasure Beach Campground System 2 771 0 -
Clearbrooke Estates Pump District 768 1 -
Tuckahoe Acres System #1 750 43 -
Stockley Center 749 18 -
Treasure Beach Campground System 4 699 5 -

Other Counties in Delaware

New Castle County
76 systems · 541,043 served · 1,173 violations
Kent County
133 systems · 159,649 served · 3,160 violations

Drinking Water Guides

Frequently Asked Questions

How many water violations are in Sussex County? ▼
Sussex County has 4,772 total drinking water violations across 251 water systems, of which 2,474 are health-based violations. 73.7% of systems have at least one violation.
How many people get water from Sussex County systems? ▼
Water systems in Sussex County serve approximately 382,938 people through 251 public water systems.
Has PFAS been detected in Sussex County water? ▼
Of 19 water systems tested for PFAS in Sussex County, 12 had PFAS detected (63.2% detection rate).
What types of water sources supply Sussex County? ▼
Water systems in Sussex 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. 51.8% of Sussex 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.