Public water system record
Cibola Water Improvement District
Serves Cibola, La Paz County, AZ · 197 people served
Federal records show 29 health-based violations and 107 monitoring/reporting issues for Cibola Water Improvement District in the last ten years, including an unresolved LEAD AND COPPER RULE REVISIONS violation.
System profile
Source water
Surface water
ZIP
85754
EPA system ID
AZ0415123
- Health-based violations, last 10 years
- 29
- Resolved
- 19
- Unresolved
- 1
- Archived by EPA
- 9
- Any acute record
- Yes
- Monitoring issues, last 10 years
- 107
Key facts
- Cibola Water Improvement District draws water from 1 surface water intake.
- Highest measured level in the last 10 years: Total Trihalomethanes (TTHMs), 0.114 mg/L, federal limit 0.08 mg/L (1.4 times the limit), 2021.
- Most recent formal enforcement: compliance order (no penalty) by EPA, January 2026.
- Record on file since 2010, with 21 health-based violations before October 19, 2016.
Check whether Cibola Water Improvement District 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 |
|---|---|---|---|---|
|
Interim Enhanced Surface Water Treatment Rule
Treatment technique failure
|
120 | Dec 1, 2025 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
Yes |
|
Interim Enhanced Surface Water Treatment Rule
Treatment technique failure
|
120 | Dec 1, 2025 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
Yes |
|
Interim Enhanced Surface Water Treatment Rule
Treatment technique failure
|
120 | Nov 1, 2025 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
Yes |
|
Interim Enhanced Surface Water Treatment Rule
Treatment technique failure
|
120 | Nov 1, 2025 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
Yes |
|
LEAD AND COPPER RULE REVISIONS
Treatment technique failure
|
350 | Oct 17, 2024 |
Active
Enforcement action in place
|
No |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.09 mg/L, federal limit 0.08 mg/L (1.1 times the limit)
|
220 | Apr 1, 2024 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
No |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.096 mg/L, federal limit 0.08 mg/L (1.2 times the limit)
|
220 | Jan 1, 2024 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
No |
|
Interim Enhanced Surface Water Treatment Rule
Treatment technique failure
|
120 | Dec 1, 2023 | Resolved | Yes |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.1 mg/L, federal limit 0.08 mg/L (1.3 times the limit)
|
220 | Oct 1, 2023 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
No |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.094 mg/L, federal limit 0.08 mg/L (1.2 times the limit)
|
220 | Jul 1, 2023 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
No |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.087 mg/L, federal limit 0.08 mg/L (1.1 times the limit)
|
220 | Apr 1, 2023 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
No |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.081 mg/L, federal limit 0.08 mg/L (at or just above the limit)
|
220 | Jul 1, 2021 | Resolved | No |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.107 mg/L, federal limit 0.08 mg/L (1.3 times the limit)
|
220 | Apr 1, 2021 | Resolved | No |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.114 mg/L, federal limit 0.08 mg/L (1.4 times the limit)
|
220 | Jan 1, 2021 | Resolved | No |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.105 mg/L, federal limit 0.08 mg/L (1.3 times the limit)
|
220 | Oct 1, 2020 | Resolved | No |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.109 mg/L, federal limit 0.08 mg/L (1.4 times the limit)
|
220 | Jul 1, 2020 | Resolved | No |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.085 mg/L, federal limit 0.08 mg/L (1.1 times the limit)
|
220 | Apr 1, 2020 | Resolved | No |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.093 mg/L, federal limit 0.08 mg/L (1.2 times the limit)
|
220 | Jan 1, 2020 | Resolved | No |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.092 mg/L, federal limit 0.08 mg/L (1.2 times the limit)
|
220 | Oct 1, 2019 | Resolved | No |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.092 mg/L, federal limit 0.08 mg/L (1.2 times the limit)
|
220 | Jul 1, 2019 | Resolved | No |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.088 mg/L, federal limit 0.08 mg/L (1.1 times the limit)
|
220 | Apr 1, 2019 | 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 | Jan 1, 2019 | 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 | Oct 1, 2018 | 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, 2018 | Resolved | No |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.099 mg/L, federal limit 0.08 mg/L (1.2 times the limit)
|
220 | Apr 1, 2018 | Resolved | No |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.097 mg/L, federal limit 0.08 mg/L (1.2 times the limit)
|
220 | Jan 1, 2018 | 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, 2017 | Resolved | No |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.09 mg/L, federal limit 0.08 mg/L (1.1 times the limit)
|
220 | Jul 1, 2017 | Resolved | No |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.082 mg/L, federal limit 0.08 mg/L (at or just above the limit)
|
220 | Oct 1, 2016 | Resolved | No |
Monitoring and reporting issues
Since October 2016Missed tests or reports, not contaminants found above a limit.
| Issue | Start date | Status |
|---|---|---|
|
Surface Water Treatment Rule
Monitoring and reporting
|
Dec 1, 2025 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
|
Dec 1, 2025 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
Public Notice
OTHER
|
Nov 15, 2025 | Active |
|
Public Notice
OTHER
|
Nov 13, 2025 | Active |
|
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
|
Nov 1, 2025 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
Surface Water Treatment Rule
Monitoring and reporting
|
Nov 1, 2025 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
Public Notice
OTHER
|
Oct 23, 2025 | Active |
|
Chlorine
Monitoring and reporting
|
Oct 1, 2025 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
Haloacetic Acids (HAA5)
Monitoring and reporting
|
Oct 1, 2025 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
Total Trihalomethanes (TTHMs)
Monitoring and reporting
|
Oct 1, 2025 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
|
Oct 1, 2025 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
Surface Water Treatment Rule
Monitoring and reporting
|
Oct 1, 2025 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
Lead and Copper Rule
Monitoring and reporting
|
Oct 1, 2025 | Active |
|
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
|
Sep 1, 2025 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
Surface Water Treatment Rule
Monitoring and reporting
|
Sep 1, 2025 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
Public Notice
OTHER
|
Aug 7, 2025 | Active |
|
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
|
Aug 1, 2025 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
Surface Water Treatment Rule
Monitoring and reporting
|
Aug 1, 2025 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
|
Jul 1, 2025 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
Revised Total Coliform Rule
RPT
|
Jul 1, 2025 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
Jul 1, 2025 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
Revised Total Coliform Rule
RPT
|
Jun 1, 2025 | Resolved |
|
Public Notice
OTHER
|
May 2, 2025 | Resolved |
|
Public Notice
OTHER
|
Apr 2, 2025 | Active |
|
Chlorine
Monitoring and reporting
|
Apr 1, 2025 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
Apr 1, 2025 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
Apr 1, 2025 | Resolved |
|
Chlorine
Monitoring and reporting
|
Mar 1, 2025 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
Mar 1, 2025 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
|
Mar 1, 2025 | Resolved |
|
Public Notice
OTHER
|
Dec 20, 2024 | Active |
|
LEAD AND COPPER RULE REVISIONS
RPT
|
Oct 17, 2024 |
Active
Enforcement action in place
|
|
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
|
Oct 1, 2024 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
Oct 1, 2024 | Resolved |
|
Revised Total Coliform Rule
RPT
|
Oct 1, 2024 | Resolved |
|
Lead and Copper Rule
Monitoring and reporting
|
Oct 1, 2024 | Active |
|
Total Trihalomethanes (TTHMs)
Monitoring and reporting
|
Sep 29, 2024 |
Active
Enforcement action in place
|
|
Surface Water Treatment Rule
Monitoring and reporting
|
Sep 1, 2024 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
|
Sep 1, 2024 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Sep 1, 2024 | Resolved |
|
Haloacetic Acids (HAA5)
Monitoring and reporting
|
Jul 1, 2024 | Resolved |
|
Total Trihalomethanes (TTHMs)
Monitoring and reporting
|
Jul 1, 2024 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
|
Jul 1, 2024 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
Jul 1, 2024 | Resolved |
|
Total Trihalomethanes (TTHMs)
Monitoring and reporting
|
Jun 30, 2024 |
Active
Enforcement action in place
|
|
Public Notice
OTHER
|
Jun 30, 2024 | Active |
|
Surface Water Treatment Rule
Monitoring and reporting
|
Jun 1, 2024 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Jun 1, 2024 | Resolved |
|
Revised Total Coliform Rule
RPT
|
May 1, 2024 | Resolved |
|
Public Notice
OTHER
|
Apr 26, 2024 | Resolved |
|
Public Notice
OTHER
|
Apr 26, 2024 | Resolved |
|
Haloacetic Acids (HAA5)
Monitoring and reporting
|
Apr 1, 2024 | Resolved |
|
Total Trihalomethanes (TTHMs)
Monitoring and reporting
|
Apr 1, 2024 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
Apr 1, 2024 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
|
Apr 1, 2024 | Resolved |
|
Revised Total Coliform Rule
RPT
|
Apr 1, 2024 | Resolved |
|
Total Trihalomethanes (TTHMs)
Monitoring and reporting
|
Mar 31, 2024 |
Active
Enforcement action in place
|
|
Public Notice
OTHER
|
Mar 3, 2024 | Active |
|
Chlorine
Monitoring and reporting
|
Mar 1, 2024 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
Mar 1, 2024 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
|
Mar 1, 2024 | Resolved |
|
Public Notice
OTHER
|
Feb 23, 2024 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
|
Feb 1, 2024 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
Feb 1, 2024 | Resolved |
|
Lead and Copper Rule
Monitoring and reporting
|
Jan 1, 2024 | Resolved |
|
Public Notice
OTHER
|
Dec 3, 2023 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
|
Nov 1, 2023 | Resolved |
|
Chlorine
Monitoring and reporting
|
Oct 1, 2023 | Resolved |
|
Chlorine
Monitoring and reporting
|
Jul 1, 2023 | Resolved |
|
Revised Total Coliform Rule
RPT
|
Apr 1, 2023 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
|
Feb 1, 2023 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
Feb 1, 2023 | Resolved |
|
Revised Total Coliform Rule
RPT
|
Feb 1, 2023 | Resolved |
|
Haloacetic Acids (HAA5)
Monitoring and reporting
|
Jan 1, 2023 | Resolved |
|
Total Trihalomethanes (TTHMs)
Monitoring and reporting
|
Jan 1, 2023 | Resolved |
|
Chlorine
Monitoring and reporting
|
Jan 1, 2023 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
|
Jan 1, 2023 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
Jan 1, 2023 | Resolved |
|
Lead and Copper Rule
Monitoring and reporting
|
Nov 10, 2022 | Resolved |
|
Public Notice
OTHER
|
Oct 1, 2022 | Active |
|
Chlorine
Monitoring and reporting
|
Oct 1, 2022 | Resolved |
|
Chlorine
Monitoring and reporting
|
Jul 1, 2022 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
|
Feb 1, 2022 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
Feb 1, 2022 | Resolved |
|
Lead and Copper Rule
Monitoring and reporting
|
Jul 1, 2021 | Resolved |
|
Chlorine
Monitoring and reporting
|
Apr 1, 2020 | Resolved |
|
Revised Total Coliform Rule
RPT
|
Jan 1, 2020 | Resolved |
|
Consumer Confidence Rule
OTHER
|
Oct 2, 2019 | Resolved |
|
Revised Total Coliform Rule
RPT
|
Oct 1, 2019 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
Jan 1, 2019 | Resolved |
|
Revised Total Coliform Rule
RPT
|
Nov 1, 2018 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
Jul 1, 2018 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
|
Jul 1, 2018 | Resolved |
|
Revised Total Coliform Rule
RPT
|
May 1, 2018 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
Jan 1, 2018 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
|
Jan 1, 2018 | Resolved |
|
Chlorine
Monitoring and reporting
|
Oct 1, 2017 | Resolved |
|
Chlorine
Monitoring and reporting
|
Apr 1, 2017 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
|
Mar 1, 2017 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
Mar 1, 2017 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
|
Feb 1, 2017 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
Feb 1, 2017 | Resolved |
|
Revised Total Coliform Rule
RPT
|
Feb 1, 2017 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
|
Jan 1, 2017 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
Jan 1, 2017 | Resolved |
|
Chlorine
Monitoring and reporting
|
Jan 1, 2017 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Nov 1, 2016 | Resolved |
Full record since 2010
EPA's records for Cibola Water Improvement District go back to 2010. Before October 19, 2016 they list 21 health-based violations (21 resolved) and 26 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 2010 to October 18, 2016 | 21 | 26 |
| October 19, 2016 to 2019 | 10 | 20 |
| 2020s | 18 | 87 |
Most recent health-based violation before October 19, 2016: Total Trihalomethanes (TTHMs), began October 2016, Resolved.
Show all 21 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.082 mg/L, federal limit 0.08 mg/L (at or just above the limit)
|
Oct 1, 2016 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.09 mg/L, federal limit 0.08 mg/L (1.1 times the limit)
|
Jul 1, 2016 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.09 mg/L, federal limit 0.08 mg/L (1.1 times the limit)
|
Apr 1, 2016 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.101 mg/L, federal limit 0.08 mg/L (1.3 times the limit)
|
Jan 1, 2016 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.097 mg/L, federal limit 0.08 mg/L (1.2 times the limit)
|
Oct 1, 2015 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.099 mg/L, federal limit 0.08 mg/L (1.2 times the limit)
|
Jul 1, 2015 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.096 mg/L, federal limit 0.08 mg/L (1.2 times the limit)
|
Apr 1, 2015 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.092 mg/L, federal limit 0.08 mg/L (1.2 times the limit)
|
Jan 1, 2015 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.093 mg/L, federal limit 0.08 mg/L (1.2 times the limit)
|
Oct 1, 2014 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.107 mg/L, federal limit 0.08 mg/L (1.3 times the limit)
|
Jul 1, 2014 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.084 mg/L, federal limit 0.08 mg/L (1.1 times the limit)
|
Apr 1, 2014 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.109 mg/L, federal limit 0.08 mg/L (1.4 times the limit)
|
Oct 1, 2012 | Resolved |
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.063 mg/L, federal limit 0.06 mg/L (1.1 times the limit)
|
Jul 1, 2012 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.122 mg/L, federal limit 0.08 mg/L (1.5 times the limit)
|
Jul 1, 2012 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.132 mg/L, federal limit 0.08 mg/L (1.7 times the limit)
|
Apr 1, 2012 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.145 mg/L, federal limit 0.08 mg/L (1.8 times the limit)
|
Jan 1, 2012 | Resolved |
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.073 mg/L, federal limit 0.06 mg/L (1.2 times the limit)
|
Jan 1, 2012 | Resolved |
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.073 mg/L, federal limit 0.06 mg/L (1.2 times the limit)
|
Oct 1, 2011 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.153 mg/L, federal limit 0.08 mg/L (1.9 times the limit)
|
Oct 1, 2011 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.155 mg/L, federal limit 0.08 mg/L (1.9 times the limit)
|
Jul 1, 2011 | Resolved |
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.063 mg/L, federal limit 0.06 mg/L (1.1 times the limit)
|
Jul 1, 2011 | Resolved |
Enforcement actions
Arizona regulators and EPA took 3 formal enforcement actions against Cibola Water Improvement District between 2016 and 2026. The most recent was a compliance order (no penalty) in January 2026.
| Date | By | Action | Violations covered |
|---|---|---|---|
| Jan 15, 2026 | EPA | Compliance order (no penalty) | 2 violations (1 health-based): LEAD AND COPPER RULE REVISIONS |
| Sep 24, 2023 | Arizona | Compliance order (no penalty) | 8 violations (5 health-based): Total Trihalomethanes (TTHMs) |
| Aug 9, 2016 | Arizona | Compliance order (no penalty) | 34 violations (34 health-based): Total Trihalomethanes (TTHMs) |
What the violations mean
Total Trihalomethanes (TTHMs)
23 incidentsDisinfection byproduct levels exceeded the federal limit
Long-term TTHM exposure may increase bladder cancer risk
Interim Enhanced Surface Water Treatment Rule
5 incidentsThe system did not meet a filtration or treatment requirement for surface water
Inadequate treatment of surface water can let pathogens such as Cryptosporidium and Giardia through
LEAD AND COPPER RULE REVISIONS
1 incidentThe system did not complete a treatment step or action that the LEAD AND COPPER RULE REVISIONS requires (a treatment technique violation).
The utility had to notify customers about this violation.
Where the water comes from
Cibola Water Improvement District draws water from 1 surface water intake.
Annual water quality report
Cibola Water Improvement District 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 Cibola Water Improvement District 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 Arizona.
Certified drinking water labs by state EPA guidance for private wells