Public water system record
City of Marion
Serves an area of Guadalupe County, TX that includes Marion and Santa Clara · 1,971 people served
Federal records show 1 health-based violation and 4 monitoring/reporting issues for City of Marion in the last ten years. The most serious issue in this window was a resolved Total Trihalomethanes (TTHMs) violation.
System profile
- Health-based violations, last 10 years
- 1
- Resolved
- 1
- Unresolved
- 0
- Any acute record
- No
- Monitoring issues, last 10 years
- 4
Key facts
- City of Marion draws water from 2 wells.
- Highest measured level in the last 10 years: Total Trihalomethanes (TTHMs), 0.082 mg/L, federal limit 0.08 mg/L (at or just above the limit), 2019.
- Record on file since 2002, with 0 health-based violations before October 19, 2016.
- Lead pipe inventory: 0 lead and 7 unknown out of 645 service lines.
Check whether City of Marion 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 |
|---|---|---|---|---|
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.082 mg/L, federal limit 0.08 mg/L (at or just above the limit)
|
220 | Jan 1, 2019 | 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
|
Jul 1, 2025 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
Public Notice
OTHER
|
Oct 2, 2021 | Resolved |
|
Chlorine
Monitoring and reporting
|
Apr 1, 2020 | Resolved |
|
Public Notice
OTHER
|
Apr 14, 2019 | Resolved |
Full record since 2002
EPA's records for City of Marion go back to 2002. Before October 19, 2016 they list no health-based violations and 5 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 2000s | 0 | 2 |
| 2010 to October 18, 2016 | 0 | 3 |
| October 19, 2016 to 2019 | 1 | 1 |
| 2020s | 0 | 3 |
What the violations mean
Total Trihalomethanes (TTHMs)
1 incidentDisinfection byproduct levels exceeded the federal limit
Long-term TTHM exposure may increase bladder cancer risk
Where the water comes from
City of Marion draws water from 2 wells. It also buys water from Crwa Lake Dunlap WTP. It also has an emergency connection to Green Valley SUD.
Buys water from
- Crwa Lake Dunlap WTP New Braunfels, TX
Emergency or part-time connections to
- Green Valley SUD Marion, TX
Annual water quality report
City of Marion 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 Texas.
Certified drinking water labs by state EPA guidance for private wells