Denver Water Quality
Colorado
According to EPA SDWIS, Denver, Colorado is served by 57 community water systems covering about 1,383,079 people. The same extract lists 185 health-based violation records, most recently coded 0700 in 2025. Counts are historical EPA registry rows, not a current compliance or drinkability score.
Drinking water in Denver, Colorado is delivered through 57 EPA-regulated community water systems serving an estimated 1,383,079 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 185 violation records across the 57 active community systems shown here. Monitoring and reporting records are not present in the extract. The records carry 10 distinct EPA contaminant codes: Groundwater Rule, Arsenic, LEAD AND COPPER RULE REVISIONS, Gross Alpha Particle Activity, Combined Radium (-226 and -228) and 5 others. 38 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 Colorado 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 |
|---|---|---|---|
| DENVER WATER BOARD | 1,287,000 | 0 | Clean |
| CRESTVIEW WSD | 23,756 | 0 | Clean |
| CHERRY CREEK VALLEY WSD | 22,000 | 0 | Clean |
| NORTH WASHINGTON STREET WSD | 14,500 | 1 | Health |
| HIGH VIEW WD | 4,000 | 0 | Clean |
| ADVENIR FRENCH QUARTER | 3,447 | 1 | Health |
| NORTH PECOS WSD | 2,500 | 0 | Clean |
| EASTERN ADAMS CO MD | 2,485 | 0 | Clean |
| WEST OLIVE ESTATES | 1,850 | 3 | Health |
| SPRING VALLEY MD NO 1 | 1,788 | 0 | Clean |
| PALMS OF ARCHER | 1,092 | 1 | Health |
| SOUTHFORK DENTON MOBILE HOME PARK | 1,050 | 0 | Clean |
| NORTH LINCOLN WSD | 1,000 | 1 | Health |
| NORTHWEST PINES MOBILE HOME COMMUNITY | 990 | 0 | Clean |
| PINEWOOD ON THE LAKE MHP | 950 | 0 | Clean |
| MCDONALD FARMS ENTERPRISES INC | 772 | 0 | Clean |
| SPRING HILL MHP | 764 | 1 | Health |
| YANKEE SPRINGS MEADOWS | 710 | 35 | Health |
| BUCKHORN RANCH ESTATES MHP | 702 | 0 | Clean |
| MASON MANOR | 630 | 5 | Health |
| BEACH MHP | 624 | 0 | Clean |
| DUTCH HILLS | 620 | 0 | Clean |
| FOUR SEASONS MOBILE HOME PARK | 600 | 0 | Clean |
| INDEPENDENCE WSD | 567 | 0 | Clean |
| TERRACE HEIGHTS | 548 | 0 | Clean |
| BURT ESTATES MHC | 543 | 0 | Clean |
| RAINTREE ESTATES | 489 | 0 | Clean |
| HIGH CLIFF ESTATES | 448 | 0 | Clean |
| GROVELAND MANOR | 435 | 2 | Health |
| FSI HOLLY HILLS PROPERTY LLC | 435 | 1 | Health |
| ALEDO MOBILE HOME PARK | 423 | 1 | Health |
| LAMPLIGHTER MOBILE HOME PARK | 420 | 0 | Clean |
| FOREST HILLS MD RIVA CHASE | 400 | 0 | Clean |
| OAK LANE MHC | 388 | 0 | Clean |
| IDLEDALE WSD | 350 | 1 | Health |
| CAPITAL CROSSINGS | 345 | 0 | Clean |
| MOUNTAIN VALLEY MHP | 338 | 1 | Health |
| IMPERIAL MHC | 328 | 0 | Clean |
| CHATFIELD SOUTH WD | 312 | 0 | Clean |
| OLD ORCHARD ESTATES | 296 | 6 | Health |
| MEADOW STREAMS ESTATES | 293 | 16 | Health |
| THE MEADOWS | 238 | 0 | Clean |
| COUNTRY ACRES MHP (LA SALLE COUNTY) | 222 | 106 | Health |
| UNION PACIFIC RAILROAD CO.-KEENE WATER | 208 | 0 | Clean |
| MAPLE CREST MANOR MHP | 190 | 0 | Clean |
| MEADOWOOD VILLAGE MHP | 125 | 0 | Clean |
| FOXHILL MD | 123 | 0 | Clean |
| PLEASANT VIEW ESTATES | 122 | 0 | Clean |
| SUBURBAN ESTATES MHP | 115 | 0 | Clean |
| COUNTRY HOMES LAND CO | 100 | 0 | Clean |
| PINON PINES PROPERTY LLC | 100 | 0 | Clean |
| EXCELL LAWSON VILLAGE | 90 | 1 | Health |
| DEEP CREEK CREEDE HAVEN | 86 | 0 | Clean |
| VALLEY VISTA ESTATES | 51 | 0 | Clean |
| VALLI HI MHP | 50 | 2 | Health |
| HARVEST ESTATES (FORMERLY BILLS MHP) | 40 | 0 | Clean |
| DEEP CREEK MOUNTAIN VALLEY ESTATES | 31 | 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 |
|---|---|---|
| FSI HOLLY HILLS PROPERTY LLC | Groundwater Rule | 2025-11-09 |
| YANKEE SPRINGS MEADOWS | Arsenic | 2025-10-01 |
| YANKEE SPRINGS MEADOWS | Arsenic | 2025-07-01 |
| YANKEE SPRINGS MEADOWS | Arsenic | 2025-07-01 |
| YANKEE SPRINGS MEADOWS | Arsenic | 2025-04-01 |
| SPRING HILL MHP | LEAD AND COPPER RULE REVISIONS | 2025-02-01 |
| YANKEE SPRINGS MEADOWS | Arsenic | 2025-01-01 |
| YANKEE SPRINGS MEADOWS | Arsenic | 2025-01-01 |
| MEADOW STREAMS ESTATES | Arsenic | 2025-01-01 |
| MEADOW STREAMS ESTATES | Arsenic | 2025-01-01 |
| MEADOW STREAMS ESTATES | Arsenic | 2025-01-01 |
| ALEDO MOBILE HOME PARK | LEAD AND COPPER RULE REVISIONS | 2024-10-17 |
| WEST OLIVE ESTATES | LEAD AND COPPER RULE REVISIONS | 2024-10-17 |
| WEST OLIVE ESTATES | LEAD AND COPPER RULE REVISIONS | 2024-10-17 |
| WEST OLIVE ESTATES | LEAD AND COPPER RULE REVISIONS | 2024-10-17 |
| YANKEE SPRINGS MEADOWS | LEAD AND COPPER RULE REVISIONS | 2024-10-17 |
| YANKEE SPRINGS MEADOWS | LEAD AND COPPER RULE REVISIONS | 2024-10-17 |
| YANKEE SPRINGS MEADOWS | LEAD AND COPPER RULE REVISIONS | 2024-10-17 |
| YANKEE SPRINGS MEADOWS | Arsenic | 2024-10-01 |
| YANKEE SPRINGS MEADOWS | Arsenic | 2024-10-01 |
| MEADOW STREAMS ESTATES | Arsenic | 2024-10-01 |
| MEADOW STREAMS ESTATES | Arsenic | 2024-10-01 |
| MEADOW STREAMS ESTATES | Arsenic | 2024-10-01 |
| MEADOW STREAMS ESTATES | Arsenic | 2024-10-01 |
| COUNTRY ACRES MHP (LA SALLE COUNTY) | Gross Alpha Particle Activity | 2024-10-01 |
| COUNTRY ACRES MHP (LA SALLE COUNTY) | Gross Alpha Particle Activity | 2024-10-01 |
| COUNTRY ACRES MHP (LA SALLE COUNTY) | Gross Alpha Particle Activity | 2024-10-01 |
| COUNTRY ACRES MHP (LA SALLE COUNTY) | Gross Alpha Particle Activity | 2024-10-01 |
| COUNTRY ACRES MHP (LA SALLE COUNTY) | Combined Radium (-226 and -228) | 2024-10-01 |
| COUNTRY ACRES MHP (LA SALLE COUNTY) | Combined Radium (-226 and -228) | 2024-10-01 |
| COUNTRY ACRES MHP (LA SALLE COUNTY) | Combined Radium (-226 and -228) | 2024-10-01 |
| COUNTRY ACRES MHP (LA SALLE COUNTY) | Combined Radium (-226 and -228) | 2024-10-01 |
| YANKEE SPRINGS MEADOWS | Arsenic | 2024-07-01 |
| YANKEE SPRINGS MEADOWS | Arsenic | 2024-07-01 |
| MEADOW STREAMS ESTATES | Arsenic | 2024-07-01 |
| MEADOW STREAMS ESTATES | Arsenic | 2024-07-01 |
| MEADOW STREAMS ESTATES | Arsenic | 2024-07-01 |
| YANKEE SPRINGS MEADOWS | Arsenic | 2024-04-01 |
| YANKEE SPRINGS MEADOWS | Arsenic | 2024-04-01 |
| MEADOW STREAMS ESTATES | Arsenic | 2024-04-01 |
| MEADOW STREAMS ESTATES | Arsenic | 2024-04-01 |
| MEADOW STREAMS ESTATES | Arsenic | 2024-04-01 |
| MEADOW STREAMS ESTATES | Arsenic | 2024-04-01 |
| COUNTRY ACRES MHP (LA SALLE COUNTY) | Gross Alpha Particle Activity | 2024-04-01 |
| COUNTRY ACRES MHP (LA SALLE COUNTY) | Gross Alpha Particle Activity | 2024-04-01 |
| COUNTRY ACRES MHP (LA SALLE COUNTY) | Gross Alpha Particle Activity | 2024-04-01 |
| COUNTRY ACRES MHP (LA SALLE COUNTY) | Combined Radium (-226 and -228) | 2024-04-01 |
| COUNTRY ACRES MHP (LA SALLE COUNTY) | Combined Radium (-226 and -228) | 2024-04-01 |
| COUNTRY ACRES MHP (LA SALLE COUNTY) | Combined Radium (-226 and -228) | 2024-04-01 |
| YANKEE SPRINGS MEADOWS | Arsenic | 2024-01-01 |
What are Denver's health-based records for?
Denver'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 |
|---|---|---|
| Combined Radium (-226 and -228) | 68 | 2 |
| Arsenic | 51 | 3 |
| Gross Alpha Particle Activity | 43 | 1 |
| Lead and Copper Rule Revisions | 8 | 4 |
| Stage 1 Disinfectants and Disinfection Byproducts Rule | 7 | 6 |
| Groundwater Rule | 3 | 2 |
| Nitrate | 2 | 1 |
| Surface Water Treatment Rule | 1 | 1 |
TRI Facilities in Denver
| Facility | Total Releases |
|---|---|
| Wright & McGill Co | 349.9K lbs |
| Univar Solutions-Denver West | 160.4K lbs |
| Kroger Mountain View Foods | 58.6K lbs |
| Denver Metal Finishing | 35.3K lbs |
| US Department of the Treasury US Mint Denver | 15.8K lbs |
| General Shale Brick Inc Plant #60 | 5.4K lbs |
| Koppers Inc (denver Co) | 5.0K lbs |
| B&b Blending LLC | 4.5K lbs |
| Owens Corning Roofing & Asphalt LLC | 2.9K lbs |
| Holcim Wcr Inc Bannock Ready Mix Plant | 2.5K lbs |
Frequently Asked Questions
What does EPA SDWIS list for drinking water in Denver, Colorado? ▼
How many water violations does Denver have in this EPA extract? ▼
What contaminants were found in Denver water? ▼
How many water systems serve Denver? ▼
Where does Denver get its drinking water? ▼
Are there pollution sources near Denver? ▼
How does Denver compare in Colorado?
Of the 313 Colorado places with at least one community water system on file, Denver ranks #1 by number of systems (57).
Either side of it: Lakewood (53), Colorado Springs (40)
About This Data
Figures here are the current EPA SDWIS extract joined to the 57 community water systems whose service area lists Denver, ranked against the 313 Colorado 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.