Water Quality in Dover, DE (19947)
EPA violation data for public water systems serving ZIP code 19947.
Past Health-Based Violations
4 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 31 monitoring/reporting violations.
More violations than 86% of US ZIP codes.
Based on EPA compliance data. Not a substitute for an official water quality report from your utility.
20,760
Population
75
Water Systems
35
Violations (5yr)
4
Health-Based
Location
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Water Systems Serving This Area (75)
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) ✓
Georgetown Water Department
Groundwater 7,259 people served
0 violations
Del Tech Com College-Southern
Groundwater 2,100 people served
0 violations
Sussex Technical School District
Groundwater 1,800 people served
0 violations
Lead tested: 5.3 ppb (limit: 15 ppb) ✓ Copper tested: 1804 ppb (limit: 1300 ppb)
Perdue Foods Llc
Groundwater 1,500 people served
0 violations
Lead tested: 0 ppb (limit: 15 ppb) ✓ Copper tested: 2500 ppb (limit: 1300 ppb)
Perdue - Old
Groundwater 1,000 people served
0 violations
Perdue Inc.
Groundwater 700 people served
0 violations
Arbys - Lewes
Groundwater 675 people served
0 violations
Sussex Correctional Institution
Groundwater 650 people served
0 violations
Valley Run Water System
All resolved Groundwater 626 people served
21 violations (5yr)
· All resolved
Delaware Tech & Com College System 1
Groundwater 500 people served
0 violations
Georgetown State Service Center
Groundwater 475 people served
0 violations
Stockley Medical Ctr (Maryann Coverdale)
Groundwater 454 people served
0 violations
Massey'S Landing Sys 1
Groundwater 330 people served
0 violations
Avalon Woods Owners Assoc Inc
Groundwater 306 people served
0 violations
Lead tested: 0 ppb (limit: 15 ppb) ✓
County Seat Gardens
1 health-based Groundwater 297 people served
6 violations (5yr)
· 1 health-based · All resolved
Lead tested: 5.4 ppb (limit: 15 ppb) ✓
Fisherman'S Park
Purchased surface water 276 people served
0 violations
Div Of Social Services
Groundwater 225 people served
0 violations
Dept Of Highways And Trans (#1)
Groundwater 200 people served
0 violations
Dept Of Highways And Trans (#2)
Groundwater 200 people served
0 violations
Greenwood Cheer Center
Groundwater 170 people served
0 violations
Sussex Country Club
Groundwater 150 people served
0 violations
Mulligan'S Pointe Llc
2 health-based Groundwater 150 people served
2 violations (5yr)
· 2 health-based · All resolved
Sussex Academy Elementary School
Groundwater 138 people served
0 violations
Lead tested: 0 ppb (limit: 15 ppb) ✓
Shady Oak Trailer Court
Groundwater 108 people served
0 violations
Lead tested: 0 ppb (limit: 15 ppb) ✓
Ken Stacey Shirt Co Inc
Groundwater 100 people served
0 violations
Camp Barnes Inc
Groundwater 100 people served
0 violations
Sports At The Beach System 1
Groundwater 100 people served
0 violations
Redden Dairy And Deli
Groundwater 100 people served
0 violations
Redden Dairy And Deli
Groundwater 100 people served
0 violations
Sussex Country Club
Groundwater 100 people served
0 violations
Georgetown Christian School
Groundwater 90 people served
0 violations
Coverdale Child Care
Groundwater 79 people served
0 violations
Little Einstein'S Preschool & School Age
All resolved Groundwater 79 people served
1 violation (5yr)
· All resolved
Lead tested: 0 ppb (limit: 15 ppb) ✓
Delaware Tech & Comm College System 2
Groundwater 75 people served
0 violations
Mason Dixon Court
Groundwater 75 people served
0 violations
Fish Hook Mobile Home Park
1 health-based Groundwater 72 people served
3 violations (5yr)
· 1 health-based · All resolved
Lead tested: 3.7 ppb (limit: 15 ppb) ✓
Dept Of Highways And Trans (#6)
Groundwater 60 people served
0 violations
Wilmington Trust Company
Groundwater 60 people served
0 violations
University De Carvel Research & Ed Cntr
Groundwater 60 people served
0 violations
Three Bears Nursery
Groundwater 51 people served
0 violations
Georgetown Day Care Center
Groundwater 50 people served
0 violations
Univ Of De Research And Education Center
Groundwater 50 people served
0 violations
Ennis (Howard T Sr) School
Groundwater 50 people served
0 violations
Virginia Homes Mfg Of Delaware
Groundwater 50 people served
0 violations
Del Tech & C.C. South Sys 3
Groundwater 50 people served
0 violations
Ed'S Mobile Home Park
Groundwater 50 people served
0 violations
Delaware Adolescent Program Inc
Groundwater 41 people served
0 violations
Mason Dixon Court Annex
Groundwater 40 people served
0 violations
Milton Cheer Inc.
Groundwater 35 people served
0 violations
Lead tested: 0 ppb (limit: 15 ppb) ✓
Guardian Angels Daycare
All resolved Groundwater 35 people served
1 violation (5yr)
· All resolved
Lead tested: 0 ppb (limit: 15 ppb) ✓
Arrow Safety Device Company
Groundwater 35 people served
0 violations
Little Einstein'S School Age Center
All resolved Groundwater 33 people served
1 violation (5yr)
· All resolved
Lead tested: 0 ppb (limit: 15 ppb) ✓
Kent/Sussex Detox Center
Groundwater 30 people served
0 violations
Classic Motel
Groundwater 30 people served
0 violations
Hungries Food Systems Inc
Groundwater 25 people served
0 violations
Univ Of Del Substation-Sys 1
Groundwater 25 people served
0 violations
Waltons Trailer Park
Groundwater 25 people served
0 violations
Univ Of Del Substation-Sys 2
Groundwater 25 people served
0 violations
Sports At The Beach System 3
Groundwater 25 people served
0 violations
Plaza Tapatia
Groundwater 25 people served
0 violations
Sports At The Beach System 4
Groundwater 25 people served
0 violations
Dept Highways & Trans Area 3
Groundwater 25 people served
0 violations
Sports At The Beach System 5
Groundwater 25 people served
0 violations
Homestead Camp Site
Groundwater 25 people served
0 violations
Sports At The Beach System 2
Groundwater 25 people served
0 violations
Sussex County Airport
Groundwater 25 people served
0 violations
Starting Gate
Groundwater 25 people served
0 violations
Dept Highways & Trans Area 5
Groundwater 23 people served
0 violations
Great Scott Broadcasting
Groundwater 20 people served
0 violations
Silver Oak Trailer Park
Groundwater 17 people served
0 violations
Bell`S Island Campground
Groundwater 0
0 violations
Contaminants Found
NitrateHealth-Based
At high levels, nitrate can cause blue baby syndrome in infants.
3 violations
All resolved
Revised Total Coliform RuleHealth-Based
Missed testing deadlines — not a detection of bacteria.
2 violations
All resolved
Lead and Copper RuleMonitoring
Lead and copper testing requirement. Lead exposure can cause developmental harm in children.
6 violations
All resolved
Consumer Confidence RuleMonitoring
Annual water quality report delivery requirement.
4 violations
All resolved
TetrachloroethyleneMonitoring
1 violation
All resolved
TolueneMonitoring
1 violation
All resolved
trans-1,2-DichloroethyleneMonitoring
1 violation
All resolved
1,2-DichloroethaneMonitoring
1 violation
All resolved
cis-1,2-DichloroethyleneMonitoring
1 violation
All resolved
TrichloroethyleneMonitoring
1 violation
All resolved
o-DichlorobenzeneMonitoring
1 violation
All resolved
1,1,2-TrichloroethaneMonitoring
1 violation
All resolved
CHLOROBENZENEMonitoring
1 violation
All resolved
1,2,4-TrichlorobenzeneMonitoring
1 violation
All resolved
EthylbenzeneMonitoring
1 violation
All resolved
1,2-DichloropropaneMonitoring
1 violation
All resolved
BenzeneMonitoring
1 violation
All resolved
1,1,1-TrichloroethaneMonitoring
1 violation
All resolved
Xylenes, TotalMonitoring
1 violation
All resolved
p-DichlorobenzeneMonitoring
1 violation
All resolved
Carbon tetrachlorideMonitoring
1 violation
All resolved
StyreneMonitoring
1 violation
All resolved
1,1-DichloroethyleneMonitoring
1 violation
All resolved
DICHLOROMETHANEMonitoring
1 violation
All resolved
Lead & Copper Levels
Lead (Pb)
Within limit5.4 ppb measured
Action level: 15 ppb
Sampled: Jul 2025
Copper (Cu)
Exceeds limit1804 ppb measured
Action level: 1300 ppb
Sampled: Jan 2024
How Does This Compare?
Dover (19947) has more violations than 86% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 35.
Fewer violations 86th 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
UV Water Purifier
Uses ultraviolet light to neutralize bacteria, viruses, and parasites without chemicals. Ideal for homes with microbial contamination concerns.
Targets:E. coli, Coliform, Giardia, Cryptosporidium
Look for:NSF/ANSI 55 (Class A) 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.