Public water system record
Fort McDowell Community
Serves an area of Maricopa County, AZ · 7,260 people served
Federal records show 4 health-based violations and 12 monitoring/reporting issues for Fort McDowell Community in the last ten years. The most serious issue in this window was a resolved Arsenic violation.
System profile
- Health-based violations, last 10 years
- 4
- Resolved
- 4
- Unresolved
- 0
- Any acute record
- No
- Monitoring issues, last 10 years
- 12
Key facts
- Fort McDowell Community draws water from 4 wells (1 of them for emergency, seasonal or other part-time use).
- Highest measured level in the last 10 years: Arsenic, 0.0107 mg/L, federal limit 0.01 mg/L (1.1 times the limit), 2022.
- Most recent formal enforcement: signed compliance agreement by EPA, August 2012.
- Record on file since 1992, with 8 health-based violations before October 19, 2016.
- Lead pipe inventory: 0 lead and 172 unknown out of 330 service lines.
Check whether Fort McDowell Community 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 |
|---|---|---|---|---|
|
Arsenic
Contaminant limit exceeded
Measured 0.0105 mg/L, federal limit 0.01 mg/L (1.1 times the limit)
|
330 | Jan 1, 2025 | Resolved | No |
|
Arsenic
Contaminant limit exceeded
Measured 0.0105 mg/L, federal limit 0.01 mg/L (1.1 times the limit)
|
330 | Oct 1, 2024 | Resolved | No |
|
Arsenic
Contaminant limit exceeded
Measured 0.0107 mg/L, federal limit 0.01 mg/L (1.1 times the limit)
|
330 | Jul 1, 2022 | Resolved | No |
|
Arsenic
Contaminant limit exceeded
Measured 0.0102 mg/L, federal limit 0.01 mg/L (at or just above the limit)
|
330 | Jul 1, 2019 | Resolved | No |
Monitoring and reporting issues
Since October 2016Missed tests or reports, not contaminants found above a limit.
| Issue | Start date | Status |
|---|---|---|
|
Nitrate
Monitoring and reporting
|
Jul 1, 2025 | Resolved |
|
Arsenic
Monitoring and reporting
|
Jul 1, 2025 | Resolved |
|
Public Notice
OTHER
|
Oct 1, 2024 | Resolved |
|
Public Notice
OTHER
|
Oct 1, 2022 | Resolved |
|
Revised Total Coliform Rule
RPT
|
Jan 1, 2022 | Resolved |
|
ETHYLENE DIBROMIDE
Monitoring and reporting
|
Jan 1, 2017 | Resolved |
|
1,2-DIBROMO-3-CHLOROPROPANE
Monitoring and reporting
|
Jan 1, 2017 | Resolved |
|
Carbofuran
Monitoring and reporting
|
Jan 1, 2017 | Resolved |
|
OXAMYL
Monitoring and reporting
|
Jan 1, 2017 | Resolved |
|
Glyphosate
Monitoring and reporting
|
Jan 1, 2017 | Resolved |
|
Endothall
Monitoring and reporting
|
Jan 1, 2017 | Resolved |
|
Diquat
Monitoring and reporting
|
Jan 1, 2017 | Resolved |
Full record since 1992
EPA's records for Fort McDowell Community go back to 1992. Before October 19, 2016 they list 8 health-based violations (8 resolved) and 53 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1990s | 1 | 47 |
| 2000s | 0 | 4 |
| 2010 to October 18, 2016 | 7 | 2 |
| October 19, 2016 to 2019 | 1 | 7 |
| 2020s | 3 | 5 |
Most recent health-based violation before October 19, 2016: Total Coliform, began January 2013, Resolved.
Show all 8 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Total Coliform
Contaminant limit exceeded
|
Jan 1, 2013 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.01118 mg/L, federal limit 0.01 mg/L (1.1 times the limit)
|
Jul 1, 2012 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.011 mg/L, federal limit 0.01 mg/L (1.1 times the limit)
|
Apr 1, 2012 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.0106 mg/L, federal limit 0.01 mg/L (1.1 times the limit)
|
Jan 1, 2012 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.0106 mg/L, federal limit 0.01 mg/L (1.1 times the limit)
|
Oct 1, 2011 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.0106 mg/L, federal limit 0.01 mg/L (1.1 times the limit)
|
Jul 1, 2011 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.01098 mg/L, federal limit 0.01 mg/L (1.1 times the limit)
|
Apr 1, 2011 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Feb 1, 1992 | Resolved |
Enforcement actions
EPA took 1 formal enforcement action against Fort McDowell Community in 2012, filed as 7 records in EPA's data. The most recent was a signed compliance agreement in August 2012.
| Date | By | Action | Violations covered |
|---|---|---|---|
| Aug 17, 2012 | EPA | Signed compliance agreement | 7 violations (7 health-based): Total Coliform, Arsenic |
What the violations mean
Arsenic
4 incidentsArsenic exceeded the federal limit
Long-term arsenic exposure is linked to cancer and cardiovascular effects
Where the water comes from
Fort McDowell Community draws water from 4 wells (1 of them for emergency, seasonal or other part-time use).
Annual water quality report
Fort McDowell Community 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