Portland Water Quality
Maine
According to EPA SDWIS, Portland, Maine is served by 14 community water systems covering about 137,067 people. The same extract lists 12 health-based violation records, most recently coded 1005 in 2024. Counts are historical EPA registry rows, not a current compliance or drinkability score.
Drinking water in Portland, Maine is delivered through 14 EPA-regulated community water systems serving an estimated 137,067 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 12 violation records across the 14 active community systems shown here. Monitoring and reporting records are not present in the extract. The records carry 2 distinct EPA contaminant codes: Arsenic, Lead and Copper Rule. 4 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 Maine 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 |
|---|---|---|---|
| PORTLAND WATER DISTRICT-GREATER | 135,068 | 0 | Clean |
| PEQUOT HIGHLANDS | 900 | 0 | Clean |
| PORTLAND WATER DISTRICT/STEEP FALLS | 480 | 0 | Clean |
| MEADOWS AT GRAPEVINE RUN | 100 | 0 | Clean |
| SQUIRE COURT LLC | 75 | 3 | Health |
| DUCK-A-WAY ON CASCO BAY | 65 | 0 | Clean |
| TURNER SQUARE APARTMENTS | 63 | 0 | Clean |
| APPLEWOOD | 55 | 0 | Clean |
| PINES MOBILE HOME PARK LLC | 50 | 0 | Clean |
| SANDY CREEK HOUSING | 50 | 2 | Health |
| HARMON PINES DEVELOPMENT | 50 | 7 | Health |
| COUNTRY VIEW APARTMENTS | 40 | 0 | Clean |
| ELWELL FARMS | 36 | 0 | Clean |
| BROOK HOLLOW | 35 | 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 |
|---|---|---|
| HARMON PINES DEVELOPMENT | Arsenic | 2024-10-01 |
| HARMON PINES DEVELOPMENT | Arsenic | 2024-10-01 |
| HARMON PINES DEVELOPMENT | Arsenic | 2024-10-01 |
| HARMON PINES DEVELOPMENT | Arsenic | 2024-07-01 |
| HARMON PINES DEVELOPMENT | Arsenic | 2024-07-01 |
| HARMON PINES DEVELOPMENT | Arsenic | 2024-07-01 |
| HARMON PINES DEVELOPMENT | Arsenic | 2024-07-01 |
| SANDY CREEK HOUSING | - | 2023-03-01 |
| SANDY CREEK HOUSING | - | 2023-03-01 |
| SQUIRE COURT LLC | Lead and Copper Rule | 2022-07-01 |
| SQUIRE COURT LLC | Lead and Copper Rule | 2022-07-01 |
| SQUIRE COURT LLC | Lead and Copper Rule | 2022-07-01 |
What are Portland's health-based records for?
Portland'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 |
|---|---|---|
| Arsenic | 7 | 1 |
| Lead and Copper Rule | 3 | 1 |
| EPA code | 2 | 1 |
TRI Facilities in Portland
| Facility | Total Releases |
|---|---|
| Nichols Portland | 17.0K lbs |
| Maine Standard Biofuels | 5.3K lbs |
| B&g Foods Na Inc (burnham & Morrill Co Division) | 0 lbs |
| Barber Foods | 0 lbs |
Frequently Asked Questions
What does EPA SDWIS list for drinking water in Portland, Maine? ▼
How many water violations does Portland have in this EPA extract? ▼
What contaminants were found in Portland water? ▼
How many water systems serve Portland? ▼
Where does Portland get its drinking water? ▼
Are there pollution sources near Portland? ▼
How does Portland compare in Maine?
Of the 185 Maine places with at least one community water system on file, Portland ranks #3 by number of systems (14).
Either side of it: Bangor (24), Poland (18), Orono (7), Richmond (7)
About This Data
Figures here are the current EPA SDWIS extract joined to the 14 community water systems whose service area lists Portland, ranked against the 185 Maine 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.