Public water system record
Blanco MDWCA
Serves Blanco, Turley, Angustura and 1 more place, San Juan County, NM · 1,148 people served
Federal records show 6 health-based violations and 29 monitoring/reporting issues for Blanco MDWCA in the last ten years. The most serious issue in this window was a resolved Total Trihalomethanes (TTHMs) violation.
System profile
- Health-based violations, last 10 years
- 6
- Resolved
- 6
- Unresolved
- 0
- Any acute record
- No
- Monitoring issues, last 10 years
- 29
Key facts
- Blanco MDWCA buys its water from Bloomfield Water Supply System.
- Highest measured level in the last 10 years: Total Trihalomethanes (TTHMs), 0.093 mg/L, federal limit 0.08 mg/L (1.2 times the limit), 2024.
- Most recent formal enforcement: compliance order (no penalty) by New Mexico, December 2017.
- Record on file since 1991, with 5 health-based violations before October 20, 2016.
- Lead pipe inventory: 0 lead and 287 unknown out of 452 service lines.
Check whether Blanco MDWCA 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 |
|---|---|---|---|---|
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.093 mg/L, federal limit 0.08 mg/L (1.2 times the limit)
|
220 | Apr 1, 2024 | Resolved | No |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.091 mg/L, federal limit 0.08 mg/L (1.1 times the limit)
|
220 | Jan 1, 2024 | Resolved | No |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.091 mg/L, federal limit 0.08 mg/L (1.1 times the limit)
|
220 | Oct 1, 2023 | Resolved | No |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.087 mg/L, federal limit 0.08 mg/L (1.1 times the limit)
|
220 | Jul 1, 2023 | Resolved | No |
|
Groundwater Rule
Treatment technique failure
|
140 | Aug 28, 2014 | Resolved | No |
|
Groundwater Rule
Treatment technique failure
|
140 | Jun 2, 2014 | Resolved | No |
Monitoring and reporting issues
Since October 2016Missed tests or reports, not contaminants found above a limit.
| Issue | Start date | Status |
|---|---|---|
|
Total Trihalomethanes (TTHMs)
Monitoring and reporting
|
Jan 1, 2024 | Resolved |
|
Public Notice
OTHER
|
Feb 1, 2023 | Resolved |
|
Total Trihalomethanes (TTHMs)
Monitoring and reporting
|
Jan 1, 2023 | Resolved |
|
Haloacetic Acids (HAA5)
Monitoring and reporting
|
Sep 1, 2022 | Resolved |
|
Haloacetic Acids (HAA5)
Monitoring and reporting
|
Dec 1, 2021 | Resolved |
|
Lead and Copper Rule
Monitoring and reporting
|
Oct 1, 2021 | Resolved |
|
Haloacetic Acids (HAA5)
Monitoring and reporting
|
Jun 1, 2021 | Resolved |
|
Consumer Confidence Rule
OTHER
|
Jul 1, 2020 | Resolved |
|
Public Notice
OTHER
|
Jun 1, 2019 | Resolved |
|
Lead and Copper Rule
Monitoring and reporting
|
Dec 30, 2018 | Active |
|
Public Notice
OTHER
|
Nov 10, 2018 | Resolved |
|
Consumer Confidence Rule
OTHER
|
Oct 1, 2018 | Resolved |
|
Public Notice
OTHER
|
Jul 27, 2018 | Resolved |
|
Public Notice
OTHER
|
Apr 27, 2018 | Resolved |
|
Total Trihalomethanes (TTHMs)
Monitoring and reporting
|
Oct 1, 2017 | Resolved |
|
Consumer Confidence Rule
OTHER
|
Oct 1, 2017 | Resolved |
|
Public Notice
OTHER
|
Sep 17, 2017 | Resolved |
|
Haloacetic Acids (HAA5)
Monitoring and reporting
|
Sep 1, 2017 | Resolved |
|
Total Trihalomethanes (TTHMs)
Monitoring and reporting
|
Jul 1, 2017 | Resolved |
|
Consumer Confidence Rule
OTHER
|
Jul 1, 2017 | Resolved |
|
Public Notice
OTHER
|
Jun 18, 2017 | Resolved |
|
Haloacetic Acids (HAA5)
Monitoring and reporting
|
Jun 1, 2017 | Resolved |
|
Total Trihalomethanes (TTHMs)
Monitoring and reporting
|
Apr 1, 2017 | Resolved |
|
Haloacetic Acids (HAA5)
Monitoring and reporting
|
Mar 1, 2017 | Resolved |
|
Total Trihalomethanes (TTHMs)
Monitoring and reporting
|
Jan 1, 2017 | Resolved |
|
Haloacetic Acids (HAA5)
Monitoring and reporting
|
Dec 1, 2016 | Resolved |
|
Consumer Confidence Rule
OTHER
|
Jul 1, 2016 | Resolved |
|
Lead and Copper Rule
Monitoring and reporting
|
Oct 1, 2015 | Resolved |
|
Consumer Confidence Rule
OTHER
|
Jul 1, 2015 | Resolved |
Full record since 1991
EPA's records for Blanco MDWCA go back to 1991. Before October 20, 2016 they list 5 health-based violations (5 resolved) and 80 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1990s | 2 | 6 |
| 2000s | 1 | 27 |
| 2010 to October 19, 2016 | 2 | 47 |
| October 20, 2016 to 2019 | 0 | 18 |
| 2020s | 4 | 8 |
Most recent health-based violation before October 20, 2016: Groundwater Rule, began August 2014, Resolved.
Show all 5 health-based violations before October 20, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Groundwater Rule
Treatment technique failure
|
Aug 28, 2014 | Resolved |
|
Groundwater Rule
Treatment technique failure
|
Jun 2, 2014 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Aug 1, 2006 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Oct 1, 1997 | Resolved |
|
Total Coliform (acute)
Contaminant limit exceeded
|
Aug 1, 1992 | Resolved |
Enforcement actions
New Mexico regulators took 1 formal enforcement action against Blanco MDWCA and issued 1 boil water order between 1992 and 2017. The most recent was a compliance order (no penalty) in December 2017.
| Date | By | Action | Violations covered |
|---|---|---|---|
| Dec 18, 2017 | New Mexico | Compliance order (no penalty) | 7 violations: Haloacetic Acids (HAA5), Total Trihalomethanes (TTHMs), Lead and Copper Rule |
| Aug 11, 1992 | New Mexico | Boil water order | 1 violation (1 health-based): Total Coliform |
What the violations mean
Total Trihalomethanes (TTHMs)
4 incidentsDisinfection byproduct levels exceeded the federal limit
Long-term TTHM exposure may increase bladder cancer risk
Groundwater Rule
2 incidentsThe 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 each of these violations.
Where the water comes from
Blanco MDWCA buys its water from Bloomfield Water Supply System. It lists no wells or intakes of its own.
Buys water from
- Bloomfield Water Supply System Bloomfield, NM
Annual water quality report
Blanco MDWCA 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 New Mexico.
Certified drinking water labs by state EPA guidance for private wells