Newark Water Quality
Delaware
According to EPA SDWIS, Newark, Delaware is served by 11 community water systems covering about 48,731 people. The same extract lists 4 health-based violation records, most recently coded 0300 in 2020. Counts are historical EPA registry rows, not a current compliance or drinkability score.
Drinking water in Newark, Delaware is delivered through 11 EPA-regulated community water systems serving an estimated 48,731 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 11 active community systems shown here. Monitoring and reporting records are not present in the extract. The records carry 4 distinct EPA contaminant codes: Interim Enhanced Surface Water Treatment Rule, pH, Combined Radium (-226 and -228), Lead and Copper Rule. 7 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 |
|---|---|---|---|
| NEWARK WATER DEPARTMENT | 40,000 | 1 | Health |
| ELKTON WEST | 3,500 | 1 | Health |
| MOUNTAIN HILL WATER COMPANY | 2,154 | 0 | Clean |
| PINE HILLS | 953 | 0 | Clean |
| PORT DEPOSIT | 725 | 1 | Health |
| HARBOR VIEW | 437 | 1 | Health |
| CARPENTERS POINT WATER CO. | 400 | 0 | Clean |
| CECIL WOODS MOBILE HOME PARK WTP | 285 | 0 | Clean |
| ROUTE 7 DISTRIBUTION SYSTEM | 100 | 0 | Clean |
| ARTESIAN WATER PA INC | 95 | 0 | Clean |
| CHESTNUT POINT ESTATES WTP | 82 | 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 |
|---|---|---|
| PORT DEPOSIT | Interim Enhanced Surface Water Treatment Rule | 2020-11-01 |
| NEWARK WATER DEPARTMENT | pH | 2018-06-01 |
| ELKTON WEST | Combined Radium (-226 and -228) | 2016-10-01 |
| HARBOR VIEW | Lead and Copper Rule | 2007-04-01 |
What are Newark's health-based records for?
Newark's health-based violation records carry 4 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 |
|---|---|---|
| Interim Enhanced Surface Water Treatment Rule | 1 | 1 |
| pH | 1 | 1 |
| Combined Radium (-226 and -228) | 1 | 1 |
| Lead and Copper Rule | 1 | 1 |
TRI Facilities in Newark
| Facility | Total Releases |
|---|---|
| Dupont Electronic Materials Cmp LLC B2 B3 B8 | 93.4K lbs |
| Dupont Electronic Materials Cmp LLC-B5 B6 | 9.5K lbs |
| Rohm & Haas Electronic Materials Cmp Inc B7 B15 | 1.6K lbs |
| Duhadaway Tool & Die Shop Inc | 1.3K lbs |
| W L Gore & Associates Inc | 52 lbs |
| Aearo Technologies LLC | 38 lbs |
| Vp Racing Fuels | 1 lbs |
Frequently Asked Questions
What does EPA SDWIS list for drinking water in Newark, Delaware? ▼
How many water violations does Newark have in this EPA extract? ▼
What contaminants were found in Newark water? ▼
How many water systems serve Newark? ▼
Where does Newark get its drinking water? ▼
Are there pollution sources near Newark? ▼
How does Newark compare in Delaware?
Of the 39 Delaware places with at least one community water system on file, Newark ranks #1 by number of systems (11).
About This Data
Figures here are the current EPA SDWIS extract joined to the 11 community water systems whose service area lists Newark, 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.