Public water system record
Shepard Water Company
Serves Martinez Lake, Yuma County, AZ · 430 people served
Federal records show 14 health-based violations and 68 monitoring/reporting issues for Shepard Water Company in the last ten years. The most serious issue in this window was a resolved Lead and Copper Rule violation.
System profile
- Health-based violations, last 10 years
- 14
- Resolved
- 14
- Unresolved
- 0
- Any acute record
- No
- Monitoring issues, last 10 years
- 68
Key facts
- Shepard Water Company draws water from 1 well.
- Highest measured level in the last 10 years: Arsenic, 0.013 mg/L, federal limit 0.01 mg/L (1.3 times the limit), 2020.
- Most recent formal enforcement: compliance order (no penalty) by Arizona, September 2018.
- Record on file since 1979, with 9 health-based violations before October 19, 2016.
- Lead pipe inventory: 0 lead and 128 unknown out of 164 service lines.
Check whether Shepard Water Company 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
Treatment technique failure
|
350 | Jul 1, 2022 | Resolved | No |
|
Arsenic
Contaminant limit exceeded
Measured 0.011 mg/L, federal limit 0.01 mg/L (1.1 times the limit)
|
330 | Jan 1, 2022 | Resolved | No |
|
Arsenic
Contaminant limit exceeded
Measured 0.011 mg/L, federal limit 0.01 mg/L (1.1 times the limit)
|
330 | Oct 1, 2021 | Resolved | No |
|
Groundwater Rule
Treatment technique failure
|
140 | Apr 9, 2021 | Resolved | No |
|
Groundwater Rule
Treatment technique failure
|
140 | Mar 25, 2021 | Resolved | No |
|
Arsenic
Contaminant limit exceeded
Measured 0.011 mg/L, federal limit 0.01 mg/L (1.1 times the limit)
|
330 | Oct 1, 2020 | 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, 2020 | Resolved | No |
|
Arsenic
Contaminant limit exceeded
Measured 0.013 mg/L, federal limit 0.01 mg/L (1.3 times the limit)
|
330 | Apr 1, 2020 | Resolved | No |
|
Arsenic
Contaminant limit exceeded
Measured 0.013 mg/L, federal limit 0.01 mg/L (1.3 times the limit)
|
330 | Jan 1, 2020 | Resolved | No |
|
Arsenic
Contaminant limit exceeded
Measured 0.013 mg/L, federal limit 0.01 mg/L (1.3 times the limit)
|
330 | Oct 1, 2019 | 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, 2019 | Resolved | No |
|
Arsenic
Contaminant limit exceeded
Measured 0.012 mg/L, federal limit 0.01 mg/L (1.2 times the limit)
|
330 | Apr 1, 2019 | Resolved | No |
|
Arsenic
Contaminant limit exceeded
Measured 0.012 mg/L, federal limit 0.01 mg/L (1.2 times the limit)
|
330 | Jan 1, 2019 | Resolved | No |
|
Arsenic
Contaminant limit exceeded
Measured 0.012 mg/L, federal limit 0.01 mg/L (1.2 times the limit)
|
330 | Oct 1, 2018 | Resolved | No |
Monitoring and reporting issues
Since October 2016Missed tests or reports, not contaminants found above a limit.
| Issue | Start date | Status |
|---|---|---|
|
Chlorine
Monitoring and reporting
|
Dec 1, 2025 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
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.
|
|
Chlorine
Monitoring and reporting
|
Aug 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
|
Aug 1, 2025 | Resolved |
|
LEAD AND COPPER RULE REVISIONS
RPT
|
Jul 2, 2025 | Active |
|
Chlorine
Monitoring and reporting
|
Apr 1, 2025 | Resolved |
|
Haloacetic Acids (HAA5)
Monitoring and reporting
|
Jan 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
|
Jan 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
|
Jan 1, 2025 | Resolved |
|
Revised Total Coliform Rule
RPT
|
Jan 1, 2025 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Dec 1, 2024 | Resolved |
|
Chlorine
Monitoring and reporting
|
Oct 1, 2022 | Resolved |
|
Chlorine
Monitoring and reporting
|
Jul 1, 2022 | Resolved |
|
Public Notice
OTHER
|
Feb 13, 2022 | Resolved |
|
Chlorine
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
Lead and Copper Rule
Monitoring and reporting
|
Nov 16, 2021 | Resolved |
|
Revised Total Coliform Rule
RPT
|
Nov 1, 2021 | Resolved |
|
Haloacetic Acids (HAA5)
Monitoring and reporting
|
Oct 1, 2021 | Resolved |
|
Total Trihalomethanes (TTHMs)
Monitoring and reporting
|
Oct 1, 2021 | Resolved |
|
Chlorine
Monitoring and reporting
|
Apr 1, 2021 | Resolved |
|
Revised Total Coliform Rule
RPT
|
Dec 1, 2020 | Resolved |
|
Public Notice
OTHER
|
Nov 27, 2020 | Resolved |
|
Public Notice
OTHER
|
Nov 18, 2020 | Resolved |
|
Revised Total Coliform Rule
RPT
|
Nov 1, 2020 | Resolved |
|
Consumer Confidence Rule
OTHER
|
Oct 2, 2020 | Resolved |
|
Chlorine
Monitoring and reporting
|
Oct 1, 2020 | Resolved |
|
Public Notice
OTHER
|
Aug 27, 2020 | Resolved |
|
Public Notice
OTHER
|
Aug 5, 2020 | Resolved |
|
Revised Total Coliform Rule
RPT
|
Aug 1, 2020 | Resolved |
|
Chlorine
Monitoring and reporting
|
Jul 1, 2020 | Resolved |
|
Public Notice
OTHER
|
May 9, 2020 | Resolved |
|
Chlorine
Monitoring and reporting
|
Apr 1, 2020 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Apr 1, 2020 | Resolved |
|
Public Notice
OTHER
|
Feb 14, 2020 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Feb 1, 2020 | Resolved |
|
Chlorine
Monitoring and reporting
|
Jan 1, 2020 | Resolved |
|
Consumer Confidence Rule
OTHER
|
Oct 2, 2019 | Resolved |
|
Haloacetic Acids (HAA5)
Monitoring and reporting
|
Oct 1, 2019 | Resolved |
|
Total Trihalomethanes (TTHMs)
Monitoring and reporting
|
Oct 1, 2019 | Resolved |
|
Chlorine
Monitoring and reporting
|
Oct 1, 2019 | Resolved |
|
Chlorine
Monitoring and reporting
|
Jul 1, 2019 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Jul 1, 2019 | Resolved |
|
Arsenic
Monitoring and reporting
|
Apr 1, 2019 | Resolved |
|
Chlorine
Monitoring and reporting
|
Apr 1, 2019 | Resolved |
|
Lead and Copper Rule
Monitoring and reporting
|
Jan 1, 2019 | Resolved |
|
Chlorine
Monitoring and reporting
|
Jan 1, 2019 | Resolved |
|
Arsenic
Monitoring and reporting
|
Jan 1, 2019 | Resolved |
|
Haloacetic Acids (HAA5)
Monitoring and reporting
|
Oct 1, 2018 | Resolved |
|
Total Trihalomethanes (TTHMs)
Monitoring and reporting
|
Oct 1, 2018 | Resolved |
|
Chlorine
Monitoring and reporting
|
Oct 1, 2018 | Resolved |
|
Lead and Copper Rule
Monitoring and reporting
|
Oct 1, 2018 | Resolved |
|
Revised Total Coliform Rule
RPT
|
Sep 1, 2018 | Resolved |
|
Chlorine
Monitoring and reporting
|
Jul 1, 2018 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
May 1, 2018 | Resolved |
|
Chlorine
Monitoring and reporting
|
Apr 1, 2018 | Resolved |
|
Lead and Copper Rule
Monitoring and reporting
|
Jan 1, 2018 | Resolved |
|
Haloacetic Acids (HAA5)
Monitoring and reporting
|
Oct 1, 2017 | Resolved |
|
Total Trihalomethanes (TTHMs)
Monitoring and reporting
|
Oct 1, 2017 | Resolved |
|
Arsenic
Monitoring and reporting
|
Apr 1, 2017 | Resolved |
|
Arsenic
Monitoring and reporting
|
Jan 1, 2017 | Resolved |
|
Haloacetic Acids (HAA5)
Monitoring and reporting
|
Oct 1, 2016 | Resolved |
|
Total Trihalomethanes (TTHMs)
Monitoring and reporting
|
Oct 1, 2016 | Resolved |
|
Arsenic
Monitoring and reporting
|
Oct 1, 2016 | Resolved |
|
Lead and Copper Rule
Monitoring and reporting
|
Jan 1, 2015 | Resolved |
|
Lead and Copper Rule
Monitoring and reporting
|
Jan 1, 2012 | Resolved |
|
Lead and Copper Rule
Monitoring and reporting
|
Jul 1, 2004 | Active |
Full record since 1979
EPA's records for Shepard Water Company go back to 1979. Before October 19, 2016 they list 9 health-based violations (7 resolved, 2 archived by EPA without a recorded fix) and 88 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1970s | 0 | 2 |
| 1980s | 1 | 22 |
| 1990s | 0 | 27 |
| 2000s | 2 | 22 |
| 2010 to October 18, 2016 | 6 | 15 |
| October 19, 2016 to 2019 | 5 | 24 |
| 2020s | 9 | 38 |
Most recent health-based violation before October 19, 2016: Arsenic, began April 2016, Resolved.
Show all 9 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Arsenic
Contaminant limit exceeded
Measured 0.011 mg/L, federal limit 0.01 mg/L (1.1 times the limit)
|
Apr 1, 2016 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.014 mg/L, federal limit 0.01 mg/L (1.4 times the limit)
|
Jan 1, 2016 | Archived |
|
Arsenic
Contaminant limit exceeded
Measured 0.017 mg/L, federal limit 0.01 mg/L (1.7 times the limit)
|
Oct 1, 2015 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.016 mg/L, federal limit 0.01 mg/L (1.6 times the limit)
|
Jul 1, 2015 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.014 mg/L, federal limit 0.01 mg/L (1.4 times the limit)
|
Apr 1, 2015 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.011 mg/L, federal limit 0.01 mg/L (1.1 times the limit)
|
Jan 1, 2011 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Sep 1, 2008 | Resolved |
|
Fluoride
Contaminant limit exceeded
Measured 4.65 mg/L, federal limit 4 mg/L (1.2 times the limit)
|
Jan 1, 2000 | Resolved |
|
Fluoride
Contaminant limit exceeded
|
Apr 5, 1982 | Archived |
Enforcement actions
Arizona regulators took 1 formal enforcement action against Shepard Water Company in 2018. The most recent was a compliance order (no penalty) in September 2018.
| Date | By | Action | Violations covered |
|---|---|---|---|
| Sep 27, 2018 | Arizona | Compliance order (no penalty) | 18 violations (17 health-based): Arsenic |
What the violations mean
Arsenic
11 incidentsArsenic exceeded the federal limit
Long-term arsenic exposure is linked to cancer and cardiovascular effects
Groundwater Rule
2 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.
Lead and Copper Rule
1 incidentThe system did not complete a treatment step or action that the Lead and Copper Rule requires (a treatment technique violation).
The utility had to notify customers about this violation.
Where the water comes from
Shepard Water Company draws water from 1 well.
Annual water quality report
Shepard Water Company 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 Shepard Water Company 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