Public water system record
Dubach Water System
Serves Dubach, Lincoln Parish, LA · 1,218 people served
Federal records show 24 health-based violations and 8 monitoring/reporting issues for Dubach Water System in the last ten years. The most serious issue in this window was a Total Trihalomethanes (TTHMs) violation that EPA lists as archived, not resolved.
System profile
Source water
Groundwater
ZIP
71235
EPA system ID
LA1061003
- Health-based violations, last 10 years
- 24
- Resolved
- 13
- Unresolved
- 0
- Archived by EPA
- 11
- Any acute record
- No
- Monitoring issues, last 10 years
- 8
Key facts
- Dubach Water System draws water from 2 wells.
- Highest measured level in the last 10 years: Total Trihalomethanes (TTHMs), 209 µg/L, federal limit 80 µg/L (2.6 times the limit), 2017.
- Most recent formal enforcement: compliance order (no penalty) by Louisiana, December 2021.
- Record on file since 1994, with 16 health-based violations before October 19, 2016.
- Lead pipe inventory: 0 lead and 0 unknown out of 400 service lines.
Check whether Dubach Water System 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 0.148 mg/L, federal limit 0.08 mg/L (1.9 times the limit)
|
220 | Oct 1, 2025 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
No |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.151 mg/L, federal limit 0.08 mg/L (1.9 times the limit)
|
220 | Jul 1, 2025 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
No |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.156 mg/L, federal limit 0.08 mg/L (2 times the limit)
|
220 | Apr 1, 2025 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
No |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.153 mg/L, federal limit 0.08 mg/L (1.9 times the limit)
|
220 | Jan 1, 2025 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
No |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.156 mg/L, federal limit 0.08 mg/L (2 times the limit)
|
220 | Oct 1, 2024 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
No |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.159 mg/L, federal limit 0.08 mg/L (2 times the limit)
|
220 | Jul 1, 2024 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
No |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.149 mg/L, federal limit 0.08 mg/L (1.9 times the limit)
|
220 | Apr 1, 2024 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
No |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.138 mg/L, federal limit 0.08 mg/L (1.7 times the limit)
|
220 | Jan 1, 2024 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
No |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.12 mg/L, federal limit 0.08 mg/L (1.5 times the limit)
|
220 | Oct 1, 2023 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
No |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.105 mg/L, federal limit 0.08 mg/L (1.3 times the limit)
|
220 | Jul 1, 2023 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
No |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.097 mg/L, federal limit 0.08 mg/L (1.2 times the limit)
|
220 | Apr 1, 2023 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
No |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.081 mg/L, federal limit 0.08 mg/L (at or just above the limit)
|
220 | Jul 1, 2021 | Resolved | No |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.085 mg/L, federal limit 0.08 mg/L (1.1 times the limit)
|
220 | Apr 1, 2021 | Resolved | No |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.089 mg/L, federal limit 0.08 mg/L (1.1 times the limit)
|
220 | Jan 1, 2021 | Resolved | No |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.095 mg/L, federal limit 0.08 mg/L (1.2 times the limit)
|
220 | Oct 1, 2020 | Resolved | No |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.087 mg/L, federal limit 0.08 mg/L (1.1 times the limit)
|
220 | Jul 1, 2020 | Resolved | No |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.088 mg/L, federal limit 0.08 mg/L (1.1 times the limit)
|
220 | Apr 1, 2020 | Resolved | No |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 87 µg/L, federal limit 80 µg/L (1.1 times the limit)
|
220 | Apr 1, 2018 | Resolved | No |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 82 µg/L, federal limit 80 µg/L (at or just above the limit)
|
220 | Jan 1, 2018 | Resolved | No |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 209 µg/L, federal limit 80 µg/L (2.6 times the limit)
|
220 | Oct 1, 2017 | Resolved | No |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 164 µg/L, federal limit 80 µg/L (2.1 times the limit)
|
220 | Jul 1, 2017 | Resolved | No |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 166 µg/L, federal limit 80 µg/L (2.1 times the limit)
|
220 | Apr 1, 2017 | Resolved | No |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 157 µg/L, federal limit 80 µg/L (2 times the limit)
|
220 | Jan 1, 2017 | Resolved | No |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 125 µg/L, federal limit 80 µg/L (1.6 times the limit)
|
220 | Oct 1, 2016 | Resolved | No |
Monitoring and reporting issues
Since October 2016Missed tests or reports, not contaminants found above a limit.
| Issue | Start date | Status |
|---|---|---|
|
Public Notice
OTHER
|
Feb 12, 2025 | Resolved |
|
Public Notice
OTHER
|
Nov 9, 2023 | Resolved |
|
Public Notice
OTHER
|
Aug 5, 2023 | Resolved |
|
Lead and Copper Rule
Monitoring and reporting
|
Dec 10, 2020 | Resolved |
|
Lead and Copper Rule
Monitoring and reporting
|
Oct 1, 2019 | Resolved |
|
Total Trihalomethanes (TTHMs)
Monitoring and reporting
|
Oct 31, 2017 | Resolved |
|
Consumer Confidence Rule
OTHER
|
Oct 1, 2017 | Resolved |
|
Total Trihalomethanes (TTHMs)
Monitoring and reporting
|
Jul 31, 2014 | Resolved |
Full record since 1994
EPA's records for Dubach Water System go back to 1994. Before October 19, 2016 they list 16 health-based violations (14 resolved, 2 archived by EPA without a recorded fix) and 20 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1990s | 1 | 1 |
| 2000s | 0 | 7 |
| 2010 to October 18, 2016 | 15 | 12 |
| October 19, 2016 to 2019 | 6 | 3 |
| 2020s | 17 | 4 |
Most recent health-based violation before October 19, 2016: Total Trihalomethanes (TTHMs), began October 2016, Resolved.
Show all 16 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 125 µg/L, federal limit 80 µg/L (1.6 times the limit)
|
Oct 1, 2016 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 155 µg/L, federal limit 80 µg/L (1.9 times the limit)
|
Jul 1, 2016 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 180 µg/L, federal limit 80 µg/L (2.3 times the limit)
|
Apr 1, 2016 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 203 µg/L, federal limit 80 µg/L (2.5 times the limit)
|
Jan 1, 2016 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 219 µg/L, federal limit 80 µg/L (2.7 times the limit)
|
Oct 1, 2015 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 210 µg/L, federal limit 80 µg/L (2.6 times the limit)
|
Jul 1, 2015 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 195 µg/L, federal limit 80 µg/L (2.4 times the limit)
|
Apr 1, 2015 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 204 µg/L, federal limit 80 µg/L (2.6 times the limit)
|
Jan 1, 2015 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Dec 1, 2014 | Archived |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 212 µg/L, federal limit 80 µg/L (2.7 times the limit)
|
Oct 1, 2014 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 222 µg/L, federal limit 80 µg/L (2.8 times the limit)
|
Jul 1, 2014 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 296 µg/L, federal limit 80 µg/L (3.7 times the limit)
|
Apr 1, 2014 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 300 µg/L, federal limit 80 µg/L (3.8 times the limit)
|
Jan 1, 2014 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 229 µg/L, federal limit 80 µg/L (2.9 times the limit)
|
Oct 1, 2013 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 172 µg/L, federal limit 80 µg/L (2.2 times the limit)
|
Jul 1, 2013 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Nov 15, 1994 | Archived |
Enforcement actions
Louisiana regulators and EPA took 3 formal enforcement actions against Dubach Water System between 2011 and 2021. The most recent was a compliance order (no penalty) in December 2021.
| Date | By | Action | Violations covered |
|---|---|---|---|
| Dec 8, 2021 | Louisiana | Compliance order (no penalty) | 20 violations (17 health-based): Total Trihalomethanes (TTHMs), Public Notice |
| Nov 6, 2014 | Louisiana | Compliance order (no penalty) | 32 violations (21 health-based): Total Trihalomethanes (TTHMs), Haloacetic Acids (HAA5), Total Coliform |
| Jun 9, 2011 | EPA | Compliance order (no penalty) | 1 violation: Stage 2 Disinfection Byproducts Rule |
What the violations mean
Total Trihalomethanes (TTHMs)
24 incidentsDisinfection byproduct levels exceeded the federal limit
Long-term TTHM exposure may increase bladder cancer risk
Where the water comes from
Dubach Water System draws water from 2 wells.
Annual water quality report
Dubach Water System 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 Louisiana.
Certified drinking water labs by state EPA guidance for private wells