Anchorage Water Quality
Alaska
According to EPA SDWIS, Anchorage, Alaska is served by 80 community water systems covering about 246,175 people. The same extract lists 403 health-based violation records, most recently coded 2456 in 2025. Counts are historical EPA registry rows, not a current compliance or drinkability score.
Drinking water in Anchorage, Alaska is delivered through 80 EPA-regulated community water systems serving an estimated 246,175 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 403 violation records across the 80 active community systems shown here. Monitoring and reporting records are not present in the extract. The records carry 13 distinct EPA contaminant codes: Total Haloacetic Acids (HAA5), TTHM, Surface Water Treatment Rule, Groundwater Rule, LEAD AND COPPER RULE REVISIONS and 8 others. 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 Alaska 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 |
|---|---|---|---|
| MOA MUNICIPALITY OF ANCHORAGE | 221,351 | 0 | Clean |
| UNIFIED ALASKAN UTILITIES SETTLERS BAY | 2,733 | 2 | Health |
| GIRDWOOD WATER SYSTEM | 2,625 | 0 | Clean |
| OW DIMOND ESTATES TRAILER COURT | 1,395 | 0 | Clean |
| SOUTHWOOD MANOR TC | 1,005 | 3 | Health |
| PENLAND PARK MHP | 993 | 0 | Clean |
| KING COVE | 972 | 8 | Health |
| MANOOGS ISLE MOBILE HOME PARK | 935 | 1 | Health |
| GLENCAREN COURT | 828 | 0 | Clean |
| RANGEVIEW TC | 795 | 0 | Clean |
| VALLI VUE S/D WATER SYSTEM | 794 | 2 | Health |
| UNIFIED ALASKAN UTILITIES-HOMESTEAD DIV. | 708 | 0 | Clean |
| MAYFLOWER TC | 650 | 0 | Clean |
| KOTLIK WATER SYSTEM | 617 | 40 | Health |
| GOLDEN NUGGET RV PARK, MALASPINA MHP | 600 | 0 | Clean |
| UNIFIED ALASKAN UTILITIES MIDTOWN EST | 495 | 1 | Health |
| ROMIG PARK S/D | 493 | 6 | Health |
| TOTEM TRAILER TOWN TC | 480 | 3 | Health |
| NIKISHKA BAY | 470 | 5 | Health |
| POTTER CREEK WATER COMPANY | 375 | 0 | Clean |
| GLENN MULDOON TC | 354 | 0 | Clean |
| UNIFIED ALASKAN UTILITIES MOOREHAND DIV. | 350 | 0 | Clean |
| BELLA VISTA SUBDIVISION | 266 | 2 | Health |
| GOODNEWS BAY | 250 | 2 | Health |
| KATHY O ESTATES | 242 | 5 | Health |
| UTOPIA MEADOWS SD | 232 | 1 | Health |
| VALLENAR VIEW MOBILE HOME PARK | 225 | 130 | Health |
| MARANATHA WATER UTILITIES | 220 | 1 | Health |
| AMBER RIDGE/PARK PLACE APARTMENTS | 210 | 0 | Clean |
| ALPINE WOODS WATER SYSTEM | 200 | 0 | Clean |
| SOUTH PORT CONDOMINIUMS | 183 | 15 | Health |
| HOLY CROSS WATER SYSTEM | 182 | 1 | Health |
| SNOWSHOE WATER SYSTEM | 180 | 13 | Health |
| SOUTH PARK ESTATE TC | 175 | 3 | Health |
| RIVERS EDGE CONDOMINIUM | 168 | 1 | Health |
| ANCHORAGE SANDS APARTMENTS | 160 | 0 | Clean |
| UNIFIED ALASKAN UTILITIES SHERWOOD ESTAT | 147 | 13 | Health |
| HILLSIDE PARK S/D | 144 | 5 | Health |
| UNIFIED ALASKAN UTILITIES-FIELD OF VIEW | 135 | 0 | Clean |
| OASIS WATER - MCKINLEY VIEW DIV | 130 | 0 | Clean |
| GREENBROOK S/D | 123 | 1 | Health |
| GLACIER VALLEY WATER COMPANY | 120 | 0 | Clean |
| BIRCHWOOD MHP | 120 | 0 | Clean |
| EAGLECREST CONDOS ASSN. | 120 | 0 | Clean |
| WILDERNESS ESTATES | 110 | 1 | Health |
| G A PHILLIPS S/D | 102 | 0 | Clean |
| TRAILS END MHP | 100 | 2 | Health |
| GREEN ACRES TC | 96 | 1 | Health |
| QUIET VIEW APTS | 96 | 0 | Clean |
| TERRACE ON THE LAKE | 96 | 1 | Health |
| SPRING FOREST HOMEOWNERS ASSN. | 94 | 0 | Clean |
| NATIVE VILLAGE OF SLEETMUTE | 82 | 57 | Health |
| DEARMOUN II | 80 | 0 | Clean |
| TUDOR EAST APARTMENTS | 78 | 1 | Health |
| EAST 98TH AVENUE WELL HOA | 76 | 0 | Clean |
| SKY RANCH ESTATES #1 UPPER WELL | 75 | 0 | Clean |
| ALASKA H2O INC | 75 | 2 | Health |
| SKY RANCH ESTATES #2 LOWER WELL | 72 | 0 | Clean |
| PETERS CREEK TERRACE | 70 | 3 | Health |
| BEAR MOUNTAIN CONDO ASSN. | 65 | 1 | Health |
| COLONIAL PARK S/D | 63 | 0 | Clean |
| COUNTRY LANE APARTMENTS | 60 | 0 | Clean |
| LAKE O THE HILLS EAST | 56 | 1 | Health |
| NORTH STAR BEHAVIORAL HEALTH SYSTEM | 55 | 0 | Clean |
| SUN VALLEY HEIGHTS NORTH | 51 | 0 | Clean |
| HOMESTEAD HILLS | 50 | 0 | Clean |
| KINGSBERRY HOMEOWNERS ASSOC. | 50 | 1 | Health |
| WILLOW HEIGHTS CONDOS | 50 | 1 | Health |
| CHENEGA | 50 | 51 | Health |
| SWISS AIRE S/D | 48 | 0 | Clean |
| MOUNTAIN VIEW APARTMENTS | 48 | 1 | Health |
| COHOE SUBDIVISION | 36 | 2 | Health |
| SKY MANOR WELLHOUSE | 36 | 1 | Health |
| SUN VALLEY HEIGHTS SOUTH | 34 | 0 | Clean |
| MATTHEWS SUBDIVISION | 32 | 0 | Clean |
| BOREALIS ALPHA WATER SYSTEM | 30 | 1 | Health |
| NEAR POINT KNOLL SUBDIVISION | 28 | 1 | Health |
| AMBER RIDGE BRENTWOOD #1 | 28 | 3 | Health |
| AMBER RIDGE BRENTWOOD #2 | 28 | 4 | Health |
| SNOWCREST VIEW SOUTH | 25 | 3 | Health |
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 |
|---|---|---|
| VALLENAR VIEW MOBILE HOME PARK | Total Haloacetic Acids (HAA5) | 2025-10-01 |
| VALLENAR VIEW MOBILE HOME PARK | TTHM | 2025-07-01 |
| VALLENAR VIEW MOBILE HOME PARK | TTHM | 2025-07-01 |
| VALLENAR VIEW MOBILE HOME PARK | Total Haloacetic Acids (HAA5) | 2025-07-01 |
| VALLENAR VIEW MOBILE HOME PARK | Total Haloacetic Acids (HAA5) | 2025-07-01 |
| VALLENAR VIEW MOBILE HOME PARK | Total Haloacetic Acids (HAA5) | 2025-04-01 |
| VALLENAR VIEW MOBILE HOME PARK | Total Haloacetic Acids (HAA5) | 2025-04-01 |
| VALLENAR VIEW MOBILE HOME PARK | Total Haloacetic Acids (HAA5) | 2025-01-01 |
| VALLENAR VIEW MOBILE HOME PARK | Total Haloacetic Acids (HAA5) | 2025-01-01 |
| KOTLIK WATER SYSTEM | Surface Water Treatment Rule | 2024-12-01 |
| KOTLIK WATER SYSTEM | Surface Water Treatment Rule | 2024-12-01 |
| KOTLIK WATER SYSTEM | Surface Water Treatment Rule | 2024-12-01 |
| KOTLIK WATER SYSTEM | Surface Water Treatment Rule | 2024-12-01 |
| KATHY O ESTATES | Groundwater Rule | 2024-12-01 |
| HOLY CROSS WATER SYSTEM | LEAD AND COPPER RULE REVISIONS | 2024-10-17 |
| ALASKA H2O INC | LEAD AND COPPER RULE REVISIONS | 2024-10-17 |
| KINGSBERRY HOMEOWNERS ASSOC. | LEAD AND COPPER RULE REVISIONS | 2024-10-17 |
| PETERS CREEK TERRACE | LEAD AND COPPER RULE REVISIONS | 2024-10-17 |
| SNOWCREST VIEW SOUTH | LEAD AND COPPER RULE REVISIONS | 2024-10-17 |
| KOTLIK WATER SYSTEM | CARBON, TOTAL | 2024-10-01 |
| KOTLIK WATER SYSTEM | CARBON, TOTAL | 2024-10-01 |
| KOTLIK WATER SYSTEM | CARBON, TOTAL | 2024-10-01 |
| KOTLIK WATER SYSTEM | CARBON, TOTAL | 2024-10-01 |
| VALLENAR VIEW MOBILE HOME PARK | Total Haloacetic Acids (HAA5) | 2024-10-01 |
| VALLENAR VIEW MOBILE HOME PARK | Total Haloacetic Acids (HAA5) | 2024-10-01 |
| VALLENAR VIEW MOBILE HOME PARK | Interim Enhanced Surface Water Treatment Rule | 2024-09-01 |
| VALLENAR VIEW MOBILE HOME PARK | Interim Enhanced Surface Water Treatment Rule | 2024-09-01 |
| VALLENAR VIEW MOBILE HOME PARK | Interim Enhanced Surface Water Treatment Rule | 2024-09-01 |
| GREENBROOK S/D | Groundwater Rule | 2024-07-18 |
| KOTLIK WATER SYSTEM | CARBON, TOTAL | 2024-07-01 |
| KOTLIK WATER SYSTEM | CARBON, TOTAL | 2024-07-01 |
| KOTLIK WATER SYSTEM | CARBON, TOTAL | 2024-07-01 |
| KOTLIK WATER SYSTEM | CARBON, TOTAL | 2024-07-01 |
| HILLSIDE PARK S/D | Lead and Copper Rule | 2024-07-01 |
| VALLENAR VIEW MOBILE HOME PARK | Total Haloacetic Acids (HAA5) | 2024-07-01 |
| VALLENAR VIEW MOBILE HOME PARK | Total Haloacetic Acids (HAA5) | 2024-07-01 |
| VALLENAR VIEW MOBILE HOME PARK | Total Haloacetic Acids (HAA5) | 2024-07-01 |
| VALLENAR VIEW MOBILE HOME PARK | Total Haloacetic Acids (HAA5) | 2024-07-01 |
| CHENEGA | Surface Water Treatment Rule | 2024-06-01 |
| CHENEGA | Surface Water Treatment Rule | 2024-06-01 |
| CHENEGA | Surface Water Treatment Rule | 2024-06-01 |
| HILLSIDE PARK S/D | Lead and Copper Rule | 2024-05-21 |
| HILLSIDE PARK S/D | Lead and Copper Rule | 2024-05-21 |
| CHENEGA | Surface Water Treatment Rule | 2024-05-01 |
| CHENEGA | Surface Water Treatment Rule | 2024-05-01 |
| CHENEGA | Surface Water Treatment Rule | 2024-05-01 |
| KOTLIK WATER SYSTEM | CARBON, TOTAL | 2024-04-01 |
| KOTLIK WATER SYSTEM | CARBON, TOTAL | 2024-04-01 |
| KOTLIK WATER SYSTEM | CARBON, TOTAL | 2024-04-01 |
| KOTLIK WATER SYSTEM | CARBON, TOTAL | 2024-04-01 |
What are Anchorage's health-based records for?
Anchorage's health-based violation records carry 8 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 |
|---|---|---|
| Total Haloacetic Acids (HAA5) | 104 | 4 |
| Groundwater Rule | 82 | 34 |
| Surface Water Treatment Rule | 61 | 6 |
| Interim Enhanced Surface Water Treatment Rule | 46 | 2 |
| Carbon, Total | 33 | 1 |
| Arsenic | 25 | 4 |
| Tthm | 24 | 2 |
| Revised Total Coliform Rule | 10 | 2 |
TRI Facilities in Anchorage
| Facility | Total Releases |
|---|---|
| Tesoro - Anchorage Terminal | 24.1K lbs |
| Univar Solutions USA | 13.4K lbs |
| Petrostar Inc. - Port of Alaska Terminal | 2.2K lbs |
| US Ecology Alaska LLC | 1.0K lbs |
| US Ecology Alaska LLC | 55 lbs |
| Inlet Energy LLC Anchorage Warehouse | 8 lbs |
| Delta Western LLC Anchorage Warehouse | 2 lbs |
Frequently Asked Questions
What does EPA SDWIS list for drinking water in Anchorage, Alaska? ▼
How many water violations does Anchorage have in this EPA extract? ▼
What contaminants were found in Anchorage water? ▼
How many water systems serve Anchorage? ▼
Where does Anchorage get its drinking water? ▼
Are there pollution sources near Anchorage? ▼
How does Anchorage compare in Alaska?
Of the 188 Alaska places with at least one community water system on file, Anchorage ranks #1 by number of systems (80).
About This Data
Figures here are the current EPA SDWIS extract joined to the 80 community water systems whose service area lists Anchorage, ranked against the 188 Alaska 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.