Water Quality in Dover, DE (19966)
EPA violation data for public water systems serving ZIP code 19966.
Past Health-Based Violations
10 health-based violations were found in the past 5 years, meaning contaminant levels exceeded federal safety limits. All have since been resolved. There are also 5 monitoring/reporting violations.
More violations than 74% of US ZIP codes.
Based on EPA compliance data. Not a substitute for an official water quality report from your utility.
35,884
Population
88
Water Systems
15
Violations (5yr)
10
Health-Based
Location
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Water Systems Serving This Area (88)
Rehoboth Pump District (Tui)
Groundwater 81,417 people served
0 violations
Lead tested: 0.71 ppb (limit: 15 ppb) ✓
Bethany Bay Pump District
Groundwater 51,000 people served
0 violations
Lead tested: 2.3 ppb (limit: 15 ppb) ✓
Dewey Beach Water Department
Purchased groundwater 31,000 people served
0 violations
Rehoboth Beach Water Department
Groundwater 25,000 people served
0 violations
Lead tested: 0 ppb (limit: 15 ppb) ✓
Long Neck Water Company
Groundwater 11,000 people served
0 violations
Millsboro Water Department
All resolved Groundwater 8,568 people served
1 violation (5yr)
· All resolved
Lead tested: 7.3 ppb (limit: 15 ppb) ✓
Indian Landing - Fisherman Park
Groundwater 1,800 people served
0 violations
Allen Harim Foods Inc
Groundwater 1,500 people served
0 violations
Lead tested: 7.8 ppb (limit: 15 ppb) ✓
Holly Lake Campsites System 2
Groundwater 1,375 people served
0 violations
White House Beach Inc
Groundwater 1,230 people served
0 violations
Mountaire-Millsboro
Groundwater 1,200 people served
0 violations
Lead tested: 5.7 ppb (limit: 15 ppb) ✓
Palmers Market Complex
Groundwater 1,000 people served
0 violations
Baywood Greens
Purchased groundwater 909 people served
0 violations
Holly Lake Campsites System 3
Groundwater 900 people served
0 violations
Oak Meadows-Pwsc
Groundwater 610 people served
0 violations
Townsends Inc
Groundwater 600 people served
0 violations
The Meadows
Groundwater 420 people served
0 violations
White House Beach Inc (#4)
Groundwater 411 people served
0 violations
Holly Lake Campsites System 1
1 health-based Groundwater 405 people served
1 violation (5yr)
· 1 health-based · All resolved
Masseys Landing (#2)
Groundwater 350 people served
0 violations
Long Neck Village
All resolved Groundwater 345 people served
1 violation (5yr)
· All resolved
Lead tested: 8.2 ppb (limit: 15 ppb) ✓
Shawns Hideaway System #1
Groundwater 341 people served
0 violations
Lead tested: 0 ppb (limit: 15 ppb) ✓
Country Living Mobile Court
Groundwater 255 people served
0 violations
Lead tested: 10.3 ppb (limit: 15 ppb) ✓
Oak Forest Mobile Home Park
Groundwater 252 people served
0 violations
Gumboro General Store
Groundwater 250 people served
0 violations
Allen Harim - Pinnacle Processing Plant
Groundwater 225 people served
0 violations
Lead tested: 0 ppb (limit: 15 ppb) ✓
White House Beach Inc (#7)
Groundwater 222 people served
0 violations
Country Living Mob Court-Sys 2
Groundwater 219 people served
0 violations
Farbers Idle Hour Inc
Groundwater 200 people served
0 violations
White House Beach Inc (#1)
Groundwater 195 people served
0 violations
River Breeze
Groundwater 192 people served
0 violations
Mountaire Farms Corporate Office
Groundwater 175 people served
0 violations
Lead tested: 0 ppb (limit: 15 ppb) ✓
Pwsc-Driftwood Village
Groundwater 165 people served
0 violations
Shawns Hideaway System #3
Groundwater 165 people served
0 violations
Shawns Hideaway System #2
Groundwater 156 people served
0 violations
Townsends Inc
Groundwater 150 people served
0 violations
B&R Restaurant
Groundwater 150 people served
0 violations
Leisure Point Mobile Home Park
Groundwater 135 people served
0 violations
White House Beach Inc (#2)
Groundwater 131 people served
0 violations
Bay City
Groundwater 125 people served
0 violations
Gull Point
Groundwater 120 people served
0 violations
Splash Bay Shore Day School
Groundwater 115 people served
0 violations
Lead tested: 2.1 ppb (limit: 15 ppb) ✓
White House Beach Inc (#8)
Groundwater 114 people served
0 violations
Mariners Cove
Groundwater 111 people served
0 violations
Eats N Treats, Inc
Groundwater 108 people served
0 violations
Long Neck Shopping Plaza
Groundwater 100 people served
0 violations
White House Beach Inc (#6)
Groundwater 93 people served
0 violations
Amvets Post # 2
Groundwater 85 people served
0 violations
Whites Creek Manor
Groundwater 80 people served
0 violations
White House Beach Inc (#5)
Groundwater 78 people served
0 violations
Shawns Hideaway System #5
Groundwater 75 people served
0 violations
La Quetzalteca Mexican Restaurant
Groundwater 74 people served
0 violations
Townsends Inc (Well G)
Groundwater 70 people served
0 violations
Mother Goose Children'S Center
Groundwater 70 people served
0 violations
Lead tested: 0 ppb (limit: 15 ppb) ✓
Masseys Landing
Groundwater 69 people served
0 violations
Countryside Hamlet
Groundwater 66 people served
0 violations
Lead tested: 7.4 ppb (limit: 15 ppb) ✓
Timber Acres Mobile Home Park
Groundwater 63 people served
0 violations
Pleasant Acres, Llc
Groundwater 60 people served
0 violations
Lead tested: 0 ppb (limit: 15 ppb) ✓
Shawns Hideaway System #4
Groundwater 60 people served
0 violations
Toni'S Truck Stop
Groundwater 60 people served
0 violations
Mumford Grocery
Groundwater 60 people served
0 violations
Indian River Yacht Club
Groundwater 60 people served
0 violations
Country Living Mob Court-Sys 1
Groundwater 51 people served
0 violations
D And M Truck Stop
Groundwater 50 people served
0 violations
Banks Plaza
Groundwater 48 people served
0 violations
Allen Harim - Dagsboro Hatchery
Groundwater 47 people served
0 violations
Lead tested: 0 ppb (limit: 15 ppb) ✓
Suburban Propane System 2
Groundwater 40 people served
0 violations
Streets, Trailer Park
Groundwater 40 people served
0 violations
Dogwood Trailer Park
Groundwater 40 people served
0 violations
Gumboro Elem School
Groundwater 39 people served
0 violations
Suburban Propane
Groundwater 38 people served
0 violations
Lighthouse Point And Community Center
4 health-based Groundwater 36 people served
4 violations (5yr)
· 4 health-based · All resolved
Lead tested: 0 ppb (limit: 15 ppb) ✓
Northside Professional Center
1 health-based Groundwater 35 people served
3 violations (5yr)
· 1 health-based · All resolved
Lead tested: 16.4 ppb (limit: 15 ppb)
Allen Harim - Seaford Feed Mill
Groundwater 34 people served
0 violations
Lead tested: 0 ppb (limit: 15 ppb) ✓
Seafarer Village
Groundwater 30 people served
0 violations
Rehoboth Shores Mobile Home Park
Groundwater 30 people served
0 violations
Tilghman'S Pizza & Sub Shop
Groundwater 30 people served
0 violations
Hickman Motel
Groundwater 30 people served
0 violations
Forest Park
2 health-based Groundwater 25 people served
3 violations (5yr)
· 2 health-based · All resolved
Lead tested: 0 ppb (limit: 15 ppb) ✓
Long Neck Professinal Center
Groundwater 25 people served
0 violations
Riverhouse Restaurant & Marina
Groundwater 25 people served
0 violations
Rosedale Beach Hotel
Groundwater 25 people served
0 violations
The Old Time Grill
2 health-based Groundwater 25 people served
2 violations (5yr)
· 2 health-based · All resolved
Townsends Inc (Well H)
Groundwater 25 people served
0 violations
Shore Stop #296 Millsboro
Groundwater 25 people served
0 violations
White House Beach Inc (#3)
Groundwater 25 people served
0 violations
Suburban Propane
Groundwater 14 people served
0 violations
Holiday Estates
Groundwater 0
0 violations
Contaminants Found
NitrateHealth-Based
At high levels, nitrate can cause blue baby syndrome in infants.
10 violations
All resolved
Lead and Copper RuleMonitoring
Lead and copper testing requirement. Lead exposure can cause developmental harm in children.
4 violations
All resolved
Consumer Confidence RuleMonitoring
Annual water quality report delivery requirement.
1 violation
All resolved
Lead & Copper Levels
Lead (Pb)
Within limit0 ppb measured
Action level: 15 ppb
Sampled: Jul 2025
How Does This Compare?
Dover (19966) has more violations than 74% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 15.
Fewer violations 74th percentile More violations
Recommended Water Filters
Based on health-based violations detected in your area, these filter types are commonly used to address similar contaminants. Consult your water utility's Consumer Confidence Report for the most current data.
Reverse Osmosis System
One of the few filtration methods effective at removing nitrates and nitrites. Essential for households with infants.
Targets:Nitrate, Nitrite, Dissolved Solids
Look for:NSF/ANSI 58 certified
Always look for filters certified by NSF International for the specific contaminants you want to remove. This is general educational information, not an endorsement of any specific product.