Public water system record

San Simon DWID

Serves San Simon, Cochise County, AZ · 312 people served

Federal records show 37 health-based violations and 28 monitoring/reporting issues for San Simon DWID in the last ten years, including an unresolved LEAD AND COPPER RULE REVISIONS violation.

AZ0402027
SAN SIMON
AZ
312 served

System profile

Source water Groundwater

ZIP 85632

EPA system ID AZ0402027

Verify this system on EPA ECHO →

Health-based violations, last 10 years: 37
Resolved: 0
Unresolved: 1
Archived by EPA: 36
Any acute record: No
Monitoring issues, last 10 years: 28

Key facts

San Simon DWID draws water from 1 well.
Highest measured level in the last 10 years: Fluoride, 6.7 mg/L, federal limit 4 mg/L (1.7 times the limit), 2025.
Most recent formal enforcement: compliance order (no penalty) by Arizona, January 2017.
Record on file since 1979, with 55 health-based violations before October 19, 2016.

Check whether San Simon DWID serves your address

Health-based violations

Since October 2016

Violation data reflects EPA records through March 2026. For the most current status, visit the EPA ECHO database.

Contaminant	Rule family	Start date	Status	Acute
Fluoride Contaminant limit exceeded Measured 6.5 mg/L, federal limit 4 mg/L (1.6 times the limit)	330	Oct 1, 2025	Archived Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.	No
Fluoride Contaminant limit exceeded Measured 6.4 mg/L, federal limit 4 mg/L (1.6 times the limit)	330	Jul 1, 2025	Archived Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.	No
Fluoride Contaminant limit exceeded Measured 6.6 mg/L, federal limit 4 mg/L (1.7 times the limit)	330	Apr 1, 2025	Archived Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.	No
Fluoride Contaminant limit exceeded Measured 6.7 mg/L, federal limit 4 mg/L (1.7 times the limit)	330	Jan 1, 2025	Archived Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.	No
LEAD AND COPPER RULE REVISIONS Treatment technique failure	350	Oct 17, 2024	Active	No
Fluoride Contaminant limit exceeded Measured 6.1 mg/L, federal limit 4 mg/L (1.5 times the limit)	330	Oct 1, 2024	Archived Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.	No
Fluoride Contaminant limit exceeded Measured 6.1 mg/L, federal limit 4 mg/L (1.5 times the limit)	330	Jul 1, 2024	Archived Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.	No
Fluoride Contaminant limit exceeded Measured 5.7 mg/L, federal limit 4 mg/L (1.4 times the limit)	330	Apr 1, 2024	Archived Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.	No
Fluoride Contaminant limit exceeded Measured 6.3 mg/L, federal limit 4 mg/L (1.6 times the limit)	330	Jan 1, 2024	Archived Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.	No
Fluoride Contaminant limit exceeded Measured 6.3 mg/L, federal limit 4 mg/L (1.6 times the limit)	330	Oct 1, 2023	Archived Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.	No
Fluoride Contaminant limit exceeded Measured 6.2 mg/L, federal limit 4 mg/L (1.6 times the limit)	330	Jul 1, 2023	Archived Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.	No
Fluoride Contaminant limit exceeded Measured 6 mg/L, federal limit 4 mg/L (1.5 times the limit)	330	Apr 1, 2023	Archived Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.	No
Fluoride Contaminant limit exceeded Measured 5.3 mg/L, federal limit 4 mg/L (1.3 times the limit)	330	Jan 1, 2023	Archived Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.	No
Fluoride Contaminant limit exceeded Measured 5.1 mg/L, federal limit 4 mg/L (1.3 times the limit)	330	Oct 1, 2022	Archived Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.	No
Fluoride Contaminant limit exceeded Measured 4.6 mg/L, federal limit 4 mg/L (1.2 times the limit)	330	Jul 1, 2022	Archived Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.	No
Fluoride Contaminant limit exceeded Measured 4.7 mg/L, federal limit 4 mg/L (1.2 times the limit)	330	Apr 1, 2022	Archived Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.	No
Fluoride Contaminant limit exceeded Measured 5.9 mg/L, federal limit 4 mg/L (1.5 times the limit)	330	Jan 1, 2022	Archived Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.	No
Fluoride Contaminant limit exceeded Measured 6 mg/L, federal limit 4 mg/L (1.5 times the limit)	330	Oct 1, 2021	Archived Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.	No
Fluoride Contaminant limit exceeded Measured 5.9 mg/L, federal limit 4 mg/L (1.5 times the limit)	330	Jul 1, 2021	Archived Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.	No
Fluoride Contaminant limit exceeded Measured 5.4 mg/L, federal limit 4 mg/L (1.4 times the limit)	330	Apr 1, 2021	Archived Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.	No
Fluoride Contaminant limit exceeded Measured 5.8 mg/L, federal limit 4 mg/L (1.5 times the limit)	330	Jan 1, 2021	Archived Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.	No
Fluoride Contaminant limit exceeded Measured 6.3 mg/L, federal limit 4 mg/L (1.6 times the limit)	330	Jul 1, 2020	Archived Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.	No
Fluoride Contaminant limit exceeded Measured 6.6 mg/L, federal limit 4 mg/L (1.7 times the limit)	330	Apr 1, 2020	Archived Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.	No
Fluoride Contaminant limit exceeded Measured 6.5 mg/L, federal limit 4 mg/L (1.6 times the limit)	330	Jan 1, 2020	Archived Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.	No
Fluoride Contaminant limit exceeded Measured 6.2 mg/L, federal limit 4 mg/L (1.6 times the limit)	330	Oct 1, 2019	Archived Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.	No
Fluoride Contaminant limit exceeded Measured 5.9 mg/L, federal limit 4 mg/L (1.5 times the limit)	330	Jul 1, 2019	Archived Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.	No
Fluoride Contaminant limit exceeded Measured 5.8 mg/L, federal limit 4 mg/L (1.5 times the limit)	330	Apr 1, 2019	Archived Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.	No
Fluoride Contaminant limit exceeded Measured 6 mg/L, federal limit 4 mg/L (1.5 times the limit)	330	Jan 1, 2019	Archived Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.	No
Fluoride Contaminant limit exceeded Measured 6 mg/L, federal limit 4 mg/L (1.5 times the limit)	330	Oct 1, 2018	Archived Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.	No
Fluoride Contaminant limit exceeded Measured 5.7 mg/L, federal limit 4 mg/L (1.4 times the limit)	330	Jul 1, 2018	Archived Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.	No
Fluoride Contaminant limit exceeded Measured 5.7 mg/L, federal limit 4 mg/L (1.4 times the limit)	330	Apr 1, 2018	Archived Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.	No
Fluoride Contaminant limit exceeded Measured 5.5 mg/L, federal limit 4 mg/L (1.4 times the limit)	330	Jan 1, 2018	Archived Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.	No
Fluoride Contaminant limit exceeded Measured 5.5 mg/L, federal limit 4 mg/L (1.4 times the limit)	330	Oct 1, 2017	Archived Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.	No
Fluoride Contaminant limit exceeded Measured 5.6 mg/L, federal limit 4 mg/L (1.4 times the limit)	330	Jul 1, 2017	Archived Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.	No
Fluoride Contaminant limit exceeded Measured 5.6 mg/L, federal limit 4 mg/L (1.4 times the limit)	330	Apr 1, 2017	Archived Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.	No
Fluoride Contaminant limit exceeded Measured 5.5 mg/L, federal limit 4 mg/L (1.4 times the limit)	330	Jan 1, 2017	Archived Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.	No
Fluoride Contaminant limit exceeded Measured 5.4 mg/L, federal limit 4 mg/L (1.4 times the limit)	330	Oct 1, 2016	Archived Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.	No

Monitoring and reporting issues

Since October 2016

Missed tests or reports, not contaminants found above a limit.

Issue	Start date	Status
Chlorine Monitoring and reporting	Nov 1, 2025	Archived Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Consumer Confidence Rule OTHER	Oct 2, 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.
Revised Total Coliform Rule Monitoring violation	Sep 1, 2025	Resolved
Public Notice OTHER	Jul 24, 2025	Active
Consumer Confidence Rule OTHER	Jul 1, 2025	Active
Chlorine 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
Chlorine Monitoring and reporting	May 1, 2025	Archived Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Chlorine Monitoring and reporting	Mar 1, 2025	Archived Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Chlorine Monitoring and reporting	Dec 1, 2024	Archived Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
LEAD AND COPPER RULE REVISIONS RPT	Oct 17, 2024	Active
Revised Total Coliform Rule RPT	Sep 1, 2024	Resolved
Chlorine Monitoring and reporting	Jul 1, 2024	Resolved
Chlorine Monitoring and reporting	Jun 1, 2024	Resolved
Chlorine Monitoring and reporting	Feb 1, 2024	Resolved
Revised Total Coliform Rule RPT	Apr 1, 2023	Resolved
Public Notice OTHER	Jan 9, 2023	Resolved
Consumer Confidence Rule OTHER	Oct 2, 2022	Resolved
Public Notice OTHER	Sep 9, 2022	Resolved
Public Notice OTHER	Aug 18, 2022	Resolved
Consumer Confidence Rule OTHER	Jul 1, 2022	Resolved
Fluoride Monitoring and reporting	Oct 1, 2020	Resolved
Lead and Copper Rule Monitoring and reporting	Sep 15, 2019	Resolved
Public Notice OTHER	Jul 27, 2019	Resolved
Fluoride Monitoring and reporting	Jul 1, 2018	Resolved
Revised Total Coliform Rule RPT	Sep 1, 2017	Resolved
Consumer Confidence Rule OTHER	Jul 1, 2002	Active

Full record since 1979

EPA's records for San Simon DWID go back to 1979. Before October 19, 2016 they list 55 health-based violations (34 resolved, 21 archived by EPA without a recorded fix) and 163 monitoring or reporting violations.

Violations that began in	Health-based	Monitoring and reporting
1970s	0	8
1980s	0	5
1990s	3	68
2000s	29	52
2010 to October 18, 2016	23	30
October 19, 2016 to 2019	12	4
2020s	24	23

Most recent health-based violation before October 19, 2016: Fluoride, began October 2016, Archived.

Show all 55 health-based violations before October 19, 2016

Contaminant	Start date	Status
Fluoride Contaminant limit exceeded Measured 5.4 mg/L, federal limit 4 mg/L (1.4 times the limit)	Oct 1, 2016	Archived
Fluoride Contaminant limit exceeded Measured 5.3 mg/L, federal limit 4 mg/L (1.3 times the limit)	Jul 1, 2016	Archived
Fluoride Contaminant limit exceeded Measured 5.3 mg/L, federal limit 4 mg/L (1.3 times the limit)	Apr 1, 2016	Archived
Fluoride Contaminant limit exceeded Measured 5.2 mg/L, federal limit 4 mg/L (1.3 times the limit)	Jan 1, 2016	Archived
Fluoride Contaminant limit exceeded Measured 5.4 mg/L, federal limit 4 mg/L (1.4 times the limit)	Jul 1, 2015	Archived
Fluoride Contaminant limit exceeded Measured 5.2 mg/L, federal limit 4 mg/L (1.3 times the limit)	Apr 1, 2015	Archived
Fluoride Contaminant limit exceeded Measured 5.3 mg/L, federal limit 4 mg/L (1.3 times the limit)	Jan 1, 2015	Archived
Fluoride Contaminant limit exceeded Measured 5.3 mg/L, federal limit 4 mg/L (1.3 times the limit)	Oct 1, 2014	Archived
Fluoride Contaminant limit exceeded Measured 5.2 mg/L, federal limit 4 mg/L (1.3 times the limit)	Jul 1, 2014	Archived
Fluoride Contaminant limit exceeded Measured 5.3 mg/L, federal limit 4 mg/L (1.3 times the limit)	Apr 1, 2014	Archived
Fluoride Contaminant limit exceeded Measured 5.3 mg/L, federal limit 4 mg/L (1.3 times the limit)	Jan 1, 2014	Archived
Fluoride Contaminant limit exceeded Measured 5.3 mg/L, federal limit 4 mg/L (1.3 times the limit)	Oct 1, 2013	Archived
Fluoride Contaminant limit exceeded Measured 5.2 mg/L, federal limit 4 mg/L (1.3 times the limit)	Jul 1, 2013	Archived
Fluoride Contaminant limit exceeded Measured 5.3 mg/L, federal limit 4 mg/L (1.3 times the limit)	Apr 1, 2013	Archived
Fluoride Contaminant limit exceeded Measured 5.12 mg/L, federal limit 4 mg/L (1.3 times the limit)	Jan 1, 2013	Archived
Fluoride Contaminant limit exceeded Measured 5.02 mg/L, federal limit 4 mg/L (1.3 times the limit)	Oct 1, 2012	Archived
Fluoride Contaminant limit exceeded Measured 5.3 mg/L, federal limit 4 mg/L (1.3 times the limit)	Jul 1, 2012	Archived
Fluoride Contaminant limit exceeded Measured 5.4 mg/L, federal limit 4 mg/L (1.4 times the limit)	Apr 1, 2012	Archived
Fluoride Contaminant limit exceeded Measured 5.5 mg/L, federal limit 4 mg/L (1.4 times the limit)	Jan 1, 2012	Archived
Fluoride Contaminant limit exceeded Measured 5.3 mg/L, federal limit 4 mg/L (1.3 times the limit)	Oct 1, 2011	Archived
Fluoride Contaminant limit exceeded Measured 4.7 mg/L, federal limit 4 mg/L (1.2 times the limit)	Jul 1, 2011	Archived
Fluoride Contaminant limit exceeded Measured 4.1 mg/L, federal limit 4 mg/L (at or just above the limit)	Apr 1, 2010	Resolved
Fluoride Contaminant limit exceeded Measured 4.5 mg/L, federal limit 4 mg/L (1.1 times the limit)	Jan 1, 2010	Resolved
Fluoride Contaminant limit exceeded Measured 4.5 mg/L, federal limit 4 mg/L (1.1 times the limit)	Oct 1, 2009	Resolved
Fluoride Contaminant limit exceeded Measured 4.5 mg/L, federal limit 4 mg/L (1.1 times the limit)	Jul 1, 2009	Resolved
Fluoride Contaminant limit exceeded Measured 4.4 mg/L, federal limit 4 mg/L (1.1 times the limit)	Apr 1, 2009	Resolved
Fluoride Contaminant limit exceeded Measured 4.4 mg/L, federal limit 4 mg/L (1.1 times the limit)	Apr 1, 2009	Resolved
Fluoride Contaminant limit exceeded Measured 5.2 mg/L, federal limit 4 mg/L (1.3 times the limit)	Jan 1, 2009	Resolved
Fluoride Contaminant limit exceeded Measured 5.1 mg/L, federal limit 4 mg/L (1.3 times the limit)	Oct 1, 2008	Resolved
Fluoride Contaminant limit exceeded Measured 5.1 mg/L, federal limit 4 mg/L (1.3 times the limit)	Jul 1, 2008	Resolved
Fluoride Contaminant limit exceeded Measured 5.1 mg/L, federal limit 4 mg/L (1.3 times the limit)	Apr 1, 2008	Resolved
Fluoride Contaminant limit exceeded Measured 5.1 mg/L, federal limit 4 mg/L (1.3 times the limit)	Jan 1, 2008	Resolved
Fluoride Contaminant limit exceeded Measured 5 mg/L, federal limit 4 mg/L (1.3 times the limit)	Oct 1, 2007	Resolved
Fluoride Contaminant limit exceeded Measured 5 mg/L, federal limit 4 mg/L (1.3 times the limit)	Jul 1, 2007	Resolved
Fluoride Contaminant limit exceeded Measured 4.9 mg/L, federal limit 4 mg/L (1.2 times the limit)	Apr 1, 2007	Resolved
Fluoride Contaminant limit exceeded Measured 4.9 mg/L, federal limit 4 mg/L (1.2 times the limit)	Jan 1, 2007	Resolved
Fluoride Contaminant limit exceeded Measured 5.25 mg/L, federal limit 4 mg/L (1.3 times the limit)	Jan 1, 2004	Resolved
Fluoride Contaminant limit exceeded Measured 5.25 mg/L, federal limit 4 mg/L (1.3 times the limit)	Oct 1, 2003	Resolved
Fluoride Contaminant limit exceeded Measured 4.7 mg/L, federal limit 4 mg/L (1.2 times the limit)	Jul 1, 2003	Resolved
Fluoride Contaminant limit exceeded Measured 4.9 mg/L, federal limit 4 mg/L (1.2 times the limit)	Apr 1, 2003	Resolved
Fluoride Contaminant limit exceeded Measured 5.1 mg/L, federal limit 4 mg/L (1.3 times the limit)	Jan 1, 2003	Resolved
Fluoride Contaminant limit exceeded Measured 5.5 mg/L, federal limit 4 mg/L (1.4 times the limit)	Oct 1, 2002	Resolved
Fluoride Contaminant limit exceeded Measured 4.9 mg/L, federal limit 4 mg/L (1.2 times the limit)	Jul 1, 2002	Resolved
Fluoride Contaminant limit exceeded Measured 5.2 mg/L, federal limit 4 mg/L (1.3 times the limit)	Apr 1, 2002	Resolved
Fluoride Contaminant limit exceeded Measured 5.1 mg/L, federal limit 4 mg/L (1.3 times the limit)	Oct 1, 2001	Resolved
Fluoride Contaminant limit exceeded Measured 6.2 mg/L, federal limit 4 mg/L (1.6 times the limit)	Jul 1, 2001	Resolved
Fluoride Contaminant limit exceeded Measured 5.2 mg/L, federal limit 4 mg/L (1.3 times the limit)	Apr 1, 2001	Resolved
Fluoride Contaminant limit exceeded Measured 4.8 mg/L, federal limit 4 mg/L (1.2 times the limit)	Jan 1, 2001	Resolved
Fluoride Contaminant limit exceeded Measured 4.8 mg/L, federal limit 4 mg/L (1.2 times the limit)	Oct 1, 2000	Resolved
Fluoride Contaminant limit exceeded Measured 4.8 mg/L, federal limit 4 mg/L (1.2 times the limit)	Jul 1, 2000	Resolved

5 older violations are not listed here. EPA ECHO has the complete list.

Enforcement actions

Arizona regulators took 4 formal enforcement actions against San Simon DWID between 1995 and 2017. The most recent was a compliance order (no penalty) in January 2017.

Date	By	Action	Violations covered
Jan 30, 2017	Arizona	Compliance order (no penalty)	80 violations (77 health-based): Fluoride
Mar 12, 2013	Arizona	Compliance order (no penalty)	47 violations (47 health-based): Fluoride
Mar 1, 2013	Arizona	Compliance order (no penalty)	47 violations (47 health-based): Fluoride
Jun 6, 1995	Arizona	Compliance order (no penalty)	85 violations (60 health-based): Fluoride, Total Coliform, Consumer Confidence Rule

What the violations mean

Fluoride

36 incidents

Fluoride exceeded the federal limit

Excessive fluoride can cause dental and skeletal fluorosis

LEAD AND COPPER RULE REVISIONS

1 incident

The 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

San Simon DWID draws water from 1 well.

Annual water quality report

San Simon DWID 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 San Simon DWID 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