Nucla Water Quality
Colorado
According to EPA SDWIS, Nucla, Colorado is served by 2 community water systems covering about 875 people. The same extract lists 17 health-based violation records, most recently coded 0200 in 2023. Counts are historical EPA registry rows, not a current compliance or drinkability score.
Drinking water in Nucla, Colorado is delivered through 2 EPA-regulated community water systems serving an estimated 875 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 17 violation records across the 2 active community systems shown here. Monitoring and reporting records are not present in the extract. The records carry 4 distinct EPA contaminant codes: Surface Water Treatment Rule, Interim Enhanced Surface Water Treatment Rule, Stage 1 Disinfectants and Disinfection Byproducts Rule, TTHM. 1 TRI-reporting industrial facility is 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 |
|---|---|---|---|
| NUCLA TOWN OF | 875 | 2 | Health |
| MUSTANG WATER AUTHORITY | 0 | 15 | 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 |
|---|---|---|
| MUSTANG WATER AUTHORITY | Surface Water Treatment Rule | 2023-09-01 |
| MUSTANG WATER AUTHORITY | Surface Water Treatment Rule | 2023-09-01 |
| MUSTANG WATER AUTHORITY | Surface Water Treatment Rule | 2023-09-01 |
| MUSTANG WATER AUTHORITY | Interim Enhanced Surface Water Treatment Rule | 2023-08-01 |
| MUSTANG WATER AUTHORITY | Interim Enhanced Surface Water Treatment Rule | 2023-08-01 |
| MUSTANG WATER AUTHORITY | Surface Water Treatment Rule | 2023-08-01 |
| MUSTANG WATER AUTHORITY | Surface Water Treatment Rule | 2023-08-01 |
| MUSTANG WATER AUTHORITY | Surface Water Treatment Rule | 2023-08-01 |
| MUSTANG WATER AUTHORITY | Interim Enhanced Surface Water Treatment Rule | 2023-05-01 |
| MUSTANG WATER AUTHORITY | Interim Enhanced Surface Water Treatment Rule | 2023-05-01 |
| MUSTANG WATER AUTHORITY | Interim Enhanced Surface Water Treatment Rule | 2023-05-01 |
| MUSTANG WATER AUTHORITY | Interim Enhanced Surface Water Treatment Rule | 2023-05-01 |
| MUSTANG WATER AUTHORITY | Interim Enhanced Surface Water Treatment Rule | 2023-05-01 |
| MUSTANG WATER AUTHORITY | Interim Enhanced Surface Water Treatment Rule | 2023-05-01 |
| MUSTANG WATER AUTHORITY | Stage 1 Disinfectants and Disinfection Byproducts Rule | 2019-01-07 |
| NUCLA TOWN OF | TTHM | 2016-10-01 |
| NUCLA TOWN OF | TTHM | 2016-07-01 |
What are Nucla's health-based records for?
Nucla'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 | 8 | 1 |
| Surface Water Treatment Rule | 6 | 1 |
| Tthm | 2 | 1 |
| Stage 1 Disinfectants and Disinfection Byproducts Rule | 1 | 1 |
TRI Facilities in Nucla
| Facility | Total Releases |
|---|---|
| Tri-State Generation & Transmission-Nucla Station | 1.3K lbs |
Frequently Asked Questions
What does EPA SDWIS list for drinking water in Nucla, Colorado? ▼
How many water violations does Nucla have in this EPA extract? ▼
What contaminants were found in Nucla water? ▼
How many water systems serve Nucla? ▼
Where does Nucla get its drinking water? ▼
Are there pollution sources near Nucla? ▼
How does Nucla compare in Colorado?
Of the 313 Colorado places with at least one community water system on file, Nucla ranks #137 by number of systems (2).
Either side of it: Monte Vista (2), Mt Crested Butte (2), Oak Creek (2), Ouray (2)
About This Data
Figures here are the current EPA SDWIS extract joined to the 2 community water systems whose service area lists Nucla, 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.