Dover Water Quality
Delaware
According to EPA SDWIS, Dover, Delaware is served by 10 community water systems covering about 41,107 people. The same extract lists 4 health-based violation records, most recently coded 1032 in 2023. Counts are historical EPA registry rows, not a current compliance or drinkability score.
Drinking water in Dover, Delaware is delivered through 10 EPA-regulated community water systems serving an estimated 41,107 people. Each system is tracked in the EPA Safe Drinking Water Information System (SDWIS) under the Safe Drinking Water Act, which requires testing for regulated contaminants, consumer notification of violations, and publication of an annual Consumer Confidence Report.
PlainEnviro's health-based SDWIS extract shows 4 violation records across the 10 active community systems shown here. Monitoring and reporting records are not present in the extract. The records carry 3 distinct EPA contaminant codes: Manganese, Revised Total Coliform Rule, Stage 1 Disinfectants and Disinfection Byproducts Rule. 2 TRI-reporting industrial facilities are also located within the city limits.
A past EPA health-based registry row does not describe water delivered today or current compliance status; utilities notify customers and remediate under state primacy oversight when required. For current water-quality status and treatment practices, review your local utility's most recent Consumer Confidence Report or contact the Delaware drinking water program. All records above reflect federal EPA SDWIS data and are not independently verified against state databases.
Community Water Systems
| System Name | Pop. Served | Violations | Status |
|---|---|---|---|
| DOVER WATER DEPARTMENT | 39,491 | 2 | Health |
| NEW MARKET VILLAGE | 321 | 0 | Clean |
| KITTS HUMMOCK IMPROVEMENT ASSOC | 305 | 0 | Clean |
| DOVER AIR PARK | 252 | 0 | Clean |
| COLONIAL ESTATES MOBILE HOME PARK | 165 | 0 | Clean |
| SHADY ACRES MOBILE HOME PARK | 152 | 0 | Clean |
| OAK GROVE ESTATES | 150 | 1 | Health |
| WILLOW TREE PROPERTIES LLC | 123 | 0 | Clean |
| VILLAGE OF GRANDVIEW | 108 | 1 | Health |
| STRIMEL'S MHP LLC. | 40 | 0 | Clean |
Does this city have health-based water violations?
These health-based records can represent Maximum Contaminant Level (MCL), Treatment Technique (TT), or Maximum Residual Disinfectant Level (MRDL) categories. A historical record does not establish that water is currently unsafe.
| Water system | Contaminant | Begin Date |
|---|---|---|
| DOVER WATER DEPARTMENT | Manganese | 2023-02-02 |
| DOVER WATER DEPARTMENT | Manganese | 2023-02-02 |
| OAK GROVE ESTATES | Revised Total Coliform Rule | 2022-07-01 |
| VILLAGE OF GRANDVIEW | Stage 1 Disinfectants and Disinfection Byproducts Rule | 2014-07-09 |
What are Dover's health-based records for?
Dover's health-based violation records carry 3 distinct EPA codes: some name a substance, others the drinking-water rule that was breached. Counts are records on file in the EPA SDWIS extract, not current test results.
| Contaminant | Records | Systems |
|---|---|---|
| Manganese | 2 | 1 |
| Stage 1 Disinfectants and Disinfection Byproducts Rule | 1 | 1 |
| Revised Total Coliform Rule | 1 | 1 |
TRI Facilities in Dover
| Facility | Total Releases |
|---|---|
| Garrison Energy Center | 13.9K lbs |
| Griffith Energy Services Inc Carl King Inc | 0 lbs |
Frequently Asked Questions
What does EPA SDWIS list for drinking water in Dover, Delaware? ▼
How many water violations does Dover have in this EPA extract? ▼
What contaminants were found in Dover water? ▼
How many water systems serve Dover? ▼
Where does Dover get its drinking water? ▼
Are there pollution sources near Dover? ▼
How does Dover compare in Delaware?
Of the 39 Delaware places with at least one community water system on file, Dover ranks #3 by number of systems (10).
Either side of it: Newark (11), Bear (10), Rehoboth Beach (8), Smyrna (8)
About This Data
Figures here are the current EPA SDWIS extract joined to the 10 community water systems whose service area lists Dover, ranked against the 39 Delaware places with at least one system on file. Data current as of 2026-08-25.
Water system data comes from the EPA's Safe Drinking Water Information System (SDWIS). PlainEnviro's violation fetch is restricted upstream to records EPA flags as health-based and then joined to active community water systems. Monitoring and reporting violations are not included.
A health-based violation row in this extract is a historical EPA registry entry. It does not describe water delivered today or current compliance status. Many records are later resolved, and public water systems notify customers when required. For current conditions, contact your local water utility or the state drinking water program.
TRI facility data comes from the EPA Toxic Release Inventory. Facilities shown are those that self-report to the TRI program. PlainEnviro presents this data without advocacy framing.
Read our methodology - how this data is sourced, computed, and verified.