Public water system record
CS Carter Water Company
On record as serving Pinal County, AZ · Serves 28 people
Federal records show 3 health-based violations and 2 monitoring/reporting issues for CS Carter Water Company in the last ten years. The most serious issue in this window was a Nitrate violation that EPA lists as archived, not resolved.
System profile
- Health-based violations, last 10 years
- 3
- Resolved
- 0
- Unresolved
- 0
- Archived by EPA
- 3
- Any acute record
- Yes
- Monitoring issues, last 10 years
- 2
Key facts
- CS Carter Water Company draws water from 1 well.
- Highest measured level in the last 10 years: Nitrate, 33 mg/L, federal limit 10 mg/L (3.3 times the limit), 2025.
- Most recent formal enforcement: compliance order (no penalty) by Arizona, October 2025.
- Record on file since 1998, with 0 health-based violations before October 20, 2016.
Check whether CS Carter 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 |
|---|---|---|---|---|
|
Nitrate
Contaminant limit exceeded
Measured 33 mg/L, federal limit 10 mg/L (3.3 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.
|
Yes |
|
Combined Uranium
Contaminant limit exceeded
Measured 36 µg/L, federal limit 30 µg/L (1.2 times the limit)
|
340 | Oct 1, 2025 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
No |
|
Nitrate
Contaminant limit exceeded
Measured 28 mg/L, federal limit 10 mg/L (2.8 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.
|
Yes |
Monitoring and reporting issues
Since October 2016Missed tests or reports, not contaminants found above a limit.
| Issue | Start date | Status |
|---|---|---|
|
Consumer Confidence Rule
OTHER
|
Jul 1, 2004 | Active |
|
Lead and Copper Rule
Monitoring and reporting
|
Jul 1, 2002 | Active |
Full record since 1998
EPA's records for CS Carter Water Company go back to 1998. Before October 20, 2016 they list no health-based violations and 61 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1990s | 0 | 8 |
| 2000s | 0 | 53 |
| 2020s | 3 | 0 |
Enforcement actions
Arizona regulators and EPA took 2 formal enforcement actions against CS Carter Water Company between 2004 and 2025. The most recent was a compliance order (no penalty) in October 2025.
| Date | By | Action | Violations covered |
|---|---|---|---|
| Oct 2, 2025 | Arizona | Compliance order (no penalty) | 1 violation (1 health-based): Nitrate |
| Sep 13, 2004 | EPA | Compliance order (no penalty) | 1 violation: Lead and Copper Rule |
What the violations mean
Nitrate
2 incidentsNitrate exceeded the federal limit
High nitrate is especially dangerous for infants under 6 months and can cause blue baby syndrome
Combined Uranium
1 incidentTest results for Combined Uranium were above the federal limit (a maximum contaminant level violation).
The utility had to notify customers about this violation.
Where the water comes from
CS Carter Water Company draws water from 1 well.
Annual water quality report
CS Carter 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 CS Carter 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