Public water system record
Block A Well Co-Op
Serves Gallup and Williams Acres, McKinley County, NM · 92 people served
Federal records show 9 health-based violations and 7 monitoring/reporting issues for Block A Well Co-Op in the last ten years. The most serious issue in this window was a resolved Groundwater Rule violation.
System profile
- Health-based violations, last 10 years
- 9
- Resolved
- 9
- Unresolved
- 0
- Any acute record
- No
- Monitoring issues, last 10 years
- 7
Key facts
- Block A Well Co-Op draws water from 2 wells.
- Record on file since 1980, with 2 health-based violations before October 19, 2016.
- Lead pipe inventory: 0 lead and 0 unknown out of 12 service lines.
Check whether Block A Well Co-Op 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 |
|---|---|---|---|---|
|
Groundwater Rule
Treatment technique failure
|
140 | May 17, 2024 | Resolved | No |
|
Groundwater Rule
Treatment technique failure
|
140 | May 17, 2024 | Resolved | No |
|
Groundwater Rule
Treatment technique failure
|
140 | May 17, 2024 | Resolved | No |
|
Groundwater Rule
Treatment technique failure
|
140 | May 17, 2024 | Resolved | No |
|
Groundwater Rule
Treatment technique failure
|
140 | May 17, 2024 | Resolved | No |
|
Groundwater Rule
Treatment technique failure
|
140 | May 17, 2024 | Resolved | No |
|
Groundwater Rule
Treatment technique failure
|
140 | May 17, 2024 | Resolved | No |
|
Groundwater Rule
Treatment technique failure
|
140 | May 17, 2024 | Resolved | No |
|
Groundwater Rule
Treatment technique failure
|
140 | May 17, 2024 | Resolved | No |
Monitoring and reporting issues
Since October 2016Missed tests or reports, not contaminants found above a limit.
| Issue | Start date | Status |
|---|---|---|
|
Consumer Confidence Rule
OTHER
|
Oct 1, 2025 | Active |
|
Lead and Copper Rule
Monitoring and reporting
|
Oct 1, 2025 | Active |
|
Revised Total Coliform Rule
Monitoring violation
|
Sep 1, 2023 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Aug 1, 2023 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Jul 1, 2023 | Resolved |
|
Asbestos
Monitoring and reporting
|
Jan 1, 2020 | Resolved |
|
Public Notice
OTHER
|
Apr 24, 2014 | Resolved |
Full record since 1980
EPA's records for Block A Well Co-Op go back to 1980. Before October 19, 2016 they list 2 health-based violations (1 resolved, 1 archived by EPA without a recorded fix) and 48 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1980s | 0 | 6 |
| 1990s | 2 | 16 |
| 2000s | 0 | 20 |
| 2010 to October 18, 2016 | 0 | 6 |
| 2020s | 9 | 6 |
Most recent health-based violation before October 19, 2016: Total Coliform, began November 1997, Resolved.
Show all 2 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Total Coliform
Contaminant limit exceeded
|
Nov 1, 1997 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Jun 1, 1991 | Archived |
What the violations mean
Groundwater Rule
9 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
Block A Well Co-Op draws water from 2 wells.
Annual water quality report
Block A Well Co-Op 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.
Systems serving 500 or fewer people may meet the rule by telling customers the report is available on request, so you may need to ask Block A Well Co-Op for a copy.
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