Lafayette Water Quality
Colorado
According to EPA SDWIS, Lafayette, Colorado is served by 12 community water systems covering about 32,691 people. The same extract lists 6 health-based violation records, most recently coded 0400 in 2025. Counts are historical EPA registry rows, not a current compliance or drinkability score.
Drinking water in Lafayette, Colorado is delivered through 12 EPA-regulated community water systems serving an estimated 32,691 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 6 violation records across the 12 active community systems shown here. Monitoring and reporting records are not present in the extract. The records carry 4 distinct EPA contaminant codes: Stage 1 Disinfectants and Disinfection Byproducts Rule, Surface Water Treatment Rule, Interim Enhanced Surface Water Treatment Rule, Groundwater Rule. 3 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 |
|---|---|---|---|
| LAFAYETTE CITY OF | 28,700 | 0 | Clean |
| ARBORDALE ACRES MHP | 901 | 2 | Health |
| BOULDER RIDGE MHP | 897 | 0 | Clean |
| SAN LAZARO MFCTD HOUSING COMMUNITY | 844 | 3 | Health |
| CHEYENNE MOUNTAIN ESTATES MHP | 472 | 1 | Health |
| SKYLARK MOBILE HOME COMMUNITY | 342 | 0 | Clean |
| PERENFRA TX 586 | 180 | 0 | Clean |
| DALLAS MEADOWS COMMUNITY ASSOC | 120 | 0 | Clean |
| FORTUNE BRANCH VILLAGE MHP | 80 | 0 | Clean |
| LARK MEADOWS WA | 75 | 0 | Clean |
| PERENFRA TX | 45 | 0 | Clean |
| MAPLE GROVE WD | 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 |
|---|---|---|
| ARBORDALE ACRES MHP | Stage 1 Disinfectants and Disinfection Byproducts Rule | 2025-04-12 |
| ARBORDALE ACRES MHP | Stage 1 Disinfectants and Disinfection Byproducts Rule | 2025-04-12 |
| SAN LAZARO MFCTD HOUSING COMMUNITY | Surface Water Treatment Rule | 2021-08-01 |
| SAN LAZARO MFCTD HOUSING COMMUNITY | Interim Enhanced Surface Water Treatment Rule | 2019-11-01 |
| CHEYENNE MOUNTAIN ESTATES MHP | Groundwater Rule | 2018-04-13 |
| SAN LAZARO MFCTD HOUSING COMMUNITY | Stage 1 Disinfectants and Disinfection Byproducts Rule | 2016-07-01 |
What are Lafayette's health-based records for?
Lafayette'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 |
|---|---|---|
| Stage 1 Disinfectants and Disinfection Byproducts Rule | 3 | 2 |
| Surface Water Treatment Rule | 1 | 1 |
| Interim Enhanced Surface Water Treatment Rule | 1 | 1 |
| Groundwater Rule | 1 | 1 |
TRI Facilities in Lafayette
| Facility | Total Releases |
|---|---|
| Dharmacon Inc | 1.1K lbs |
| Smyrna Ready Mix Concrete LLC - Rock Creek Ready Mix | 2 lbs |
| Ready Mixed Concrete Co Plant 14 | 0 lbs |
Frequently Asked Questions
What does EPA SDWIS list for drinking water in Lafayette, Colorado? ▼
How many water violations does Lafayette have in this EPA extract? ▼
What contaminants were found in Lafayette water? ▼
How many water systems serve Lafayette? ▼
Where does Lafayette get its drinking water? ▼
Are there pollution sources near Lafayette? ▼
How does Lafayette compare in Colorado?
Of the 313 Colorado places with at least one community water system on file, Lafayette ranks #18 by number of systems (12).
Either side of it: Centennial (12), Fort Collins (12), Bayfield (11), Greenwood Village (10)
About This Data
Figures here are the current EPA SDWIS extract joined to the 12 community water systems whose service area lists Lafayette, 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.