Public water system record
Shungopavi
Serves Shongopovi, Navajo County, AZ · 1,430 people served
Federal records show 30 health-based violations and 26 monitoring/reporting issues for Shungopavi in the last ten years, including an unresolved LEAD AND COPPER RULE REVISIONS violation.
System profile
Source water
Purchased groundwater
ZIP
86043
EPA system ID
090400259
- Health-based violations, last 10 years
- 30
- Resolved
- 29
- Unresolved
- 1
- Any acute record
- No
- Monitoring issues, last 10 years
- 26
Key facts
- Shungopavi buys its water from Huc Regional Water System.
- Highest measured level in the last 10 years: Arsenic, 0.0158 mg/L, federal limit 0.01 mg/L (1.6 times the limit), 2020.
- Most recent formal enforcement: compliance order (no penalty) by EPA, October 2018.
- Record on file since 1991, with 29 health-based violations before October 19, 2016.
- Lead pipe inventory: 0 lead and 197 unknown out of 197 service lines.
Check whether Shungopavi 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 |
|---|---|---|---|---|
|
LEAD AND COPPER RULE REVISIONS
Treatment technique failure
|
350 | Oct 17, 2024 | Active | No |
|
Arsenic
Contaminant limit exceeded
Measured 0.014 mg/L, federal limit 0.01 mg/L (1.4 times the limit)
|
330 | Oct 1, 2023 | Resolved | No |
|
Arsenic
Contaminant limit exceeded
Measured 0.0145 mg/L, federal limit 0.01 mg/L (1.5 times the limit)
|
330 | Jul 1, 2023 | Resolved | No |
|
Arsenic
Contaminant limit exceeded
Measured 0.0143 mg/L, federal limit 0.01 mg/L (1.4 times the limit)
|
330 | Apr 1, 2023 | Resolved | No |
|
Arsenic
Contaminant limit exceeded
Measured 0.0143 mg/L, federal limit 0.01 mg/L (1.4 times the limit)
|
330 | Jan 1, 2023 | Resolved | No |
|
Arsenic
Contaminant limit exceeded
Measured 0.0145 mg/L, federal limit 0.01 mg/L (1.5 times the limit)
|
330 | Oct 1, 2022 | Resolved | No |
|
Arsenic
Contaminant limit exceeded
Measured 0.0145 mg/L, federal limit 0.01 mg/L (1.5 times the limit)
|
330 | Jul 1, 2022 | Resolved | No |
|
Arsenic
Contaminant limit exceeded
Measured 0.015 mg/L, federal limit 0.01 mg/L (1.5 times the limit)
|
330 | Apr 1, 2022 | Resolved | No |
|
Arsenic
Contaminant limit exceeded
Measured 0.0145 mg/L, federal limit 0.01 mg/L (1.5 times the limit)
|
330 | Jan 1, 2022 | Resolved | No |
|
Arsenic
Contaminant limit exceeded
Measured 0.0145 mg/L, federal limit 0.01 mg/L (1.5 times the limit)
|
330 | Oct 1, 2021 | Resolved | No |
|
Arsenic
Contaminant limit exceeded
Measured 0.0145 mg/L, federal limit 0.01 mg/L (1.5 times the limit)
|
330 | Jul 1, 2021 | Resolved | No |
|
Arsenic
Contaminant limit exceeded
Measured 0.0143 mg/L, federal limit 0.01 mg/L (1.4 times the limit)
|
330 | Apr 1, 2021 | Resolved | No |
|
Arsenic
Contaminant limit exceeded
Measured 0.0143 mg/L, federal limit 0.01 mg/L (1.4 times the limit)
|
330 | Jan 1, 2021 | Resolved | No |
|
Arsenic
Contaminant limit exceeded
Measured 0.0145 mg/L, federal limit 0.01 mg/L (1.5 times the limit)
|
330 | Oct 1, 2020 | Resolved | No |
|
Arsenic
Contaminant limit exceeded
Measured 0.0148 mg/L, federal limit 0.01 mg/L (1.5 times the limit)
|
330 | Jul 1, 2020 | Resolved | No |
|
Arsenic
Contaminant limit exceeded
Measured 0.0158 mg/L, federal limit 0.01 mg/L (1.6 times the limit)
|
330 | Apr 1, 2020 | Resolved | No |
|
Arsenic
Contaminant limit exceeded
Measured 0.0158 mg/L, federal limit 0.01 mg/L (1.6 times the limit)
|
330 | Jan 1, 2020 | Resolved | No |
|
Arsenic
Contaminant limit exceeded
Measured 0.0158 mg/L, federal limit 0.01 mg/L (1.6 times the limit)
|
330 | Oct 1, 2019 | Resolved | No |
|
Arsenic
Contaminant limit exceeded
Measured 0.0153 mg/L, federal limit 0.01 mg/L (1.5 times the limit)
|
330 | Jul 1, 2019 | Resolved | No |
|
Arsenic
Contaminant limit exceeded
Measured 0.0153 mg/L, federal limit 0.01 mg/L (1.5 times the limit)
|
330 | Apr 1, 2019 | Resolved | No |
|
Arsenic
Contaminant limit exceeded
Measured 0.014 mg/L, federal limit 0.01 mg/L (1.4 times the limit)
|
330 | Jan 1, 2019 | Resolved | No |
|
Arsenic
Contaminant limit exceeded
Measured 0.014 mg/L, federal limit 0.01 mg/L (1.4 times the limit)
|
330 | Oct 1, 2018 | Resolved | No |
|
Arsenic
Contaminant limit exceeded
Measured 0.014 mg/L, federal limit 0.01 mg/L (1.4 times the limit)
|
330 | Jul 1, 2018 | Resolved | No |
|
Arsenic
Contaminant limit exceeded
Measured 0.0141 mg/L, federal limit 0.01 mg/L (1.4 times the limit)
|
330 | Apr 1, 2018 | Resolved | No |
|
Arsenic
Contaminant limit exceeded
Measured 0.0138 mg/L, federal limit 0.01 mg/L (1.4 times the limit)
|
330 | Jan 1, 2018 | Resolved | No |
|
Arsenic
Contaminant limit exceeded
Measured 0.0136 mg/L, federal limit 0.01 mg/L (1.4 times the limit)
|
330 | Oct 1, 2017 | Resolved | No |
|
Arsenic
Contaminant limit exceeded
Measured 0.013 mg/L, federal limit 0.01 mg/L (1.3 times the limit)
|
330 | Jul 1, 2017 | Resolved | No |
|
Arsenic
Contaminant limit exceeded
Measured 0.0135 mg/L, federal limit 0.01 mg/L (1.4 times the limit)
|
330 | Apr 1, 2017 | Resolved | No |
|
Arsenic
Contaminant limit exceeded
Measured 0.0148 mg/L, federal limit 0.01 mg/L (1.5 times the limit)
|
330 | Jan 1, 2017 | Resolved | No |
|
Arsenic
Contaminant limit exceeded
Measured 0.0132 mg/L, federal limit 0.01 mg/L (1.3 times the limit)
|
330 | 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 |
|---|---|---|
|
Public Notice
OTHER
|
Aug 1, 2025 | Active |
|
Revised Total Coliform Rule
Monitoring violation
|
Aug 1, 2025 | Resolved |
|
LEAD AND COPPER RULE REVISIONS
RPT
|
Oct 17, 2024 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Aug 1, 2023 | Resolved |
|
Chlorine
Monitoring and reporting
|
Jul 1, 2023 | Resolved |
|
Arsenic
Monitoring and reporting
|
Jul 1, 2023 | Resolved |
|
Chlorine
Monitoring and reporting
|
Apr 1, 2023 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
Nitrate
Monitoring and reporting
|
Jan 1, 2023 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
Chlorine
Monitoring and reporting
|
Jul 1, 2022 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Apr 1, 2022 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Jan 1, 2022 | Resolved |
|
Total Trihalomethanes (TTHMs)
Monitoring and reporting
|
Jan 1, 2022 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
Haloacetic Acids (HAA5)
Monitoring and reporting
|
Jan 1, 2022 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
Arsenic
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Dec 1, 2021 | Resolved |
|
Revised Total Coliform Rule
RPT
|
Nov 1, 2021 | Resolved |
|
Chlorine
Monitoring and reporting
|
Oct 1, 2021 | Resolved |
|
Arsenic
Monitoring and reporting
|
Oct 1, 2021 | Resolved |
|
Chlorine
Monitoring and reporting
|
Jul 1, 2021 | Resolved |
|
Chlorine
Monitoring and reporting
|
Apr 1, 2021 | Resolved |
|
Nitrate
Monitoring and reporting
|
Jan 1, 2021 | Resolved |
|
Haloacetic Acids (HAA5)
Monitoring and reporting
|
Jan 1, 2019 | Resolved |
|
Benzo(a)pyrene
Monitoring and reporting
|
Jul 1, 2017 | Resolved |
|
Benzo(a)pyrene
Monitoring and reporting
|
Apr 1, 2017 | Resolved |
|
Lead and Copper Rule
Monitoring and reporting
|
Jan 1, 2017 | Resolved |
|
Public Notice
OTHER
|
Oct 1, 2016 | Resolved |
Full record since 1991
EPA's records for Shungopavi go back to 1991. Before October 19, 2016 they list 29 health-based violations (15 resolved, 14 archived by EPA without a recorded fix) and 294 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1990s | 3 | 132 |
| 2000s | 10 | 78 |
| 2010 to October 18, 2016 | 16 | 84 |
| October 19, 2016 to 2019 | 12 | 4 |
| 2020s | 17 | 21 |
Most recent health-based violation before October 19, 2016: Arsenic, began October 2016, Resolved.
Show all 29 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Arsenic
Contaminant limit exceeded
Measured 0.0132 mg/L, federal limit 0.01 mg/L (1.3 times the limit)
|
Oct 1, 2016 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.015 mg/L, federal limit 0.01 mg/L (1.5 times the limit)
|
Jul 1, 2016 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.0145 mg/L, federal limit 0.01 mg/L (1.5 times the limit)
|
Apr 1, 2016 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.0134 mg/L, federal limit 0.01 mg/L (1.3 times the limit)
|
Jan 1, 2016 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.0132 mg/L, federal limit 0.01 mg/L (1.3 times the limit)
|
Oct 1, 2015 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.0138 mg/L, federal limit 0.01 mg/L (1.4 times the limit)
|
Jul 1, 2015 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.0133 mg/L, federal limit 0.01 mg/L (1.3 times the limit)
|
Apr 1, 2015 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.014 mg/L, federal limit 0.01 mg/L (1.4 times the limit)
|
Jan 1, 2015 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.014 mg/L, federal limit 0.01 mg/L (1.4 times the limit)
|
Oct 1, 2014 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.014 mg/L, federal limit 0.01 mg/L (1.4 times the limit)
|
Jul 1, 2014 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.014 mg/L, federal limit 0.01 mg/L (1.4 times the limit)
|
Apr 1, 2014 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.014 mg/L, federal limit 0.01 mg/L (1.4 times the limit)
|
Jan 1, 2014 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.01025 mg/L, federal limit 0.01 mg/L (at or just above the limit)
|
Oct 1, 2010 | Archived |
|
Arsenic
Contaminant limit exceeded
Measured 0.01425 mg/L, federal limit 0.01 mg/L (1.4 times the limit)
|
Jul 1, 2010 | Archived |
|
Arsenic
Contaminant limit exceeded
Measured 0.0145 mg/L, federal limit 0.01 mg/L (1.5 times the limit)
|
Apr 1, 2010 | Archived |
|
Arsenic
Contaminant limit exceeded
Measured 0.015 mg/L, federal limit 0.01 mg/L (1.5 times the limit)
|
Jan 1, 2010 | Archived |
|
Arsenic
Contaminant limit exceeded
Measured 0.015 mg/L, federal limit 0.01 mg/L (1.5 times the limit)
|
Oct 1, 2009 | Archived |
|
Arsenic
Contaminant limit exceeded
Measured 0.0148 mg/L, federal limit 0.01 mg/L (1.5 times the limit)
|
Jul 1, 2009 | Archived |
|
Arsenic
Contaminant limit exceeded
Measured 0.0148 mg/L, federal limit 0.01 mg/L (1.5 times the limit)
|
Apr 1, 2009 | Archived |
|
Arsenic
Contaminant limit exceeded
Measured 0.01475 mg/L, federal limit 0.01 mg/L (1.5 times the limit)
|
Jan 1, 2009 | Archived |
|
Arsenic
Contaminant limit exceeded
Measured 0.015 mg/L, federal limit 0.01 mg/L (1.5 times the limit)
|
Oct 1, 2008 | Archived |
|
Arsenic
Contaminant limit exceeded
Measured 0.015 mg/L, federal limit 0.01 mg/L (1.5 times the limit)
|
Jul 1, 2008 | Archived |
|
Arsenic
Contaminant limit exceeded
Measured 0.0145 mg/L, federal limit 0.01 mg/L (1.5 times the limit)
|
Apr 1, 2008 | Archived |
|
Arsenic
Contaminant limit exceeded
Measured 0.0145 mg/L, federal limit 0.01 mg/L (1.5 times the limit)
|
Jan 1, 2008 | Archived |
|
Arsenic
Contaminant limit exceeded
Measured 0.0145 mg/L, federal limit 0.01 mg/L (1.5 times the limit)
|
Oct 1, 2007 | Archived |
|
Arsenic
Contaminant limit exceeded
Measured 0.014 mg/L, federal limit 0.01 mg/L (1.4 times the limit)
|
Apr 1, 2007 | Archived |
|
Total Coliform
Contaminant limit exceeded
|
Oct 1, 1997 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Sep 1, 1997 | Resolved |
|
Total Coliform (acute)
Contaminant limit exceeded
|
Aug 1, 1997 | Resolved |
Enforcement actions
EPA took 2 formal enforcement actions against Shungopavi between 2011 and 2018, filed as 45 records in EPA's data. The most recent was a compliance order (no penalty) in October 2018.
| Date | By | Action | Violations covered |
|---|---|---|---|
| Oct 3, 2018 | EPA | Compliance order (no penalty) | 32 violations (32 health-based): Arsenic |
| Jun 16, 2011 | EPA | Signed compliance agreement | 14 violations (14 health-based): Arsenic |
What the violations mean
Arsenic
29 incidentsArsenic exceeded the federal limit
Long-term arsenic exposure is linked to cancer and cardiovascular effects
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
Shungopavi buys its water from Huc Regional Water System. It lists no wells or intakes of its own.
Buys water from
- Huc Regional Water System Flagstaff, AZ
Annual water quality report
Shungopavi 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 9.
Certified drinking water labs by state EPA guidance for private wells