Public water system record
San Ildefonso Pueblo
Serves San Ildefonso Pueblo and El Rancho, Santa Fe County, NM · 608 people served
Federal records show 2 health-based violations and no monitoring/reporting issues for San Ildefonso Pueblo in the last ten years. The most serious issue in this window was a resolved Stage 1 Disinfection Byproducts Rule violation.
System profile
- Health-based violations, last 10 years
- 2
- Resolved
- 2
- Unresolved
- 0
- Any acute record
- No
- Monitoring issues, last 10 years
- 0
Key facts
- San Ildefonso Pueblo draws water from 2 wells.
- Record on file since 1991, with 6 health-based violations before October 19, 2016.
- Lead pipe inventory: 0 lead and 142 unknown out of 238 service lines.
Check whether San Ildefonso Pueblo serves your address
Health-based violations
Since October 2016Violation data reflects EPA records through March 2026. For the most current status, visit the EPA ECHO database.
| Contaminant | Rule family | Start date | Status | Acute |
|---|---|---|---|---|
|
Stage 1 Disinfection Byproducts Rule
Treatment technique failure
|
210 | Dec 20, 2019 | Resolved | No |
|
Groundwater Rule
Treatment technique failure
|
140 | Jul 1, 2018 | Resolved | No |
Full record since 1991
EPA's records for San Ildefonso Pueblo go back to 1991. Before October 19, 2016 they list 6 health-based violations (4 resolved, 2 archived by EPA without a recorded fix) and 21 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1990s | 2 | 10 |
| 2000s | 0 | 8 |
| 2010 to October 18, 2016 | 4 | 3 |
| October 19, 2016 to 2019 | 2 | 0 |
Most recent health-based violation before October 19, 2016: Groundwater Rule, began March 2012, Resolved.
Show all 6 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Groundwater Rule
Treatment technique failure
|
Mar 31, 2012 | Resolved |
|
Groundwater Rule
Treatment technique failure
|
Mar 31, 2012 | Resolved |
|
Groundwater Rule
Treatment technique failure
|
Mar 31, 2012 | Resolved |
|
Groundwater Rule
Treatment technique failure
|
Mar 31, 2012 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Dec 1, 1997 | Archived |
|
Total Coliform
Contaminant limit exceeded
|
Jul 1, 1997 | Archived |
What the violations mean
Stage 1 Disinfection Byproducts Rule
1 incidentThe system did not meet a treatment requirement of the Stage 1 Disinfectants and Disinfection Byproducts Rule
Byproducts form when disinfectants react with natural material in water. Long-term exposure above federal limits may increase cancer risk
Groundwater Rule
1 incidentThe system did not complete a treatment step or action that the Groundwater Rule requires (a treatment technique violation).
The utility had to notify customers about this violation.
Where the water comes from
San Ildefonso Pueblo draws water from 2 wells.
Annual water quality report
San Ildefonso Pueblo must give its customers an annual water quality report (Consumer Confidence Report) by July 1, with the levels its tests found in the previous year.
Where the state allows it, systems serving fewer than 10,000 people may publish the report in a local newspaper or news site instead of mailing it, and must provide a copy on request.
Find a posted report with EPA's Consumer Confidence Report search
Testing your own water
To test the water at your tap, or a private well this record does not cover, use a laboratory certified for drinking water by EPA Region 6.
Certified drinking water labs by state EPA guidance for private wells