Public water system record
Parish Utilities of Ascension
Serves Donaldsonville, Ascension Parish, LA · 9,732 people served
Federal records show 5 health-based violations and 2 monitoring/reporting issues for Parish Utilities of Ascension in the last ten years, including an unresolved Groundwater Rule violation.
System profile
- Health-based violations, last 10 years
- 5
- Resolved
- 4
- Unresolved
- 1
- Any acute record
- No
- Monitoring issues, last 10 years
- 2
Key facts
- Parish Utilities of Ascension draws water from 1 surface water intake.
- Highest measured level in the last 10 years: Total Trihalomethanes (TTHMs), 0.081 mg/L, federal limit 0.08 mg/L (at or just above the limit), 2024.
- Most recent formal enforcement: compliance order (no penalty) by Louisiana, March 2016.
- Record on file since 1991, with 33 health-based violations before October 19, 2016.
- Lead pipe inventory: 0 lead and 0 unknown out of 4,427 service lines.
Check whether Parish Utilities of Ascension 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 0.081 mg/L, federal limit 0.08 mg/L (at or just above the limit)
|
220 | Jul 1, 2024 | Resolved | No |
|
Long Term 2 Enhanced Surface Water Treatment Rule
Treatment technique failure
|
120 | Feb 1, 2018 | Resolved | No |
|
Groundwater Rule
Treatment technique failure
|
140 | Jun 23, 2016 | Active | No |
|
Long Term 2 Enhanced Surface Water Treatment Rule
Treatment technique failure
|
120 | May 1, 2016 | Resolved | No |
|
Long Term 2 Enhanced Surface Water Treatment Rule
Treatment technique failure
|
120 | Apr 1, 2016 | Resolved | No |
Monitoring and reporting issues
Since October 2016Missed tests or reports, not contaminants found above a limit.
| Issue | Start date | Status |
|---|---|---|
|
Consumer Confidence Rule
OTHER
|
Oct 1, 2017 | Resolved |
|
Consumer Confidence Rule
OTHER
|
Jul 1, 2017 | Resolved |
Full record since 1991
EPA's records for Parish Utilities of Ascension go back to 1991. Before October 19, 2016 they list 33 health-based violations (24 resolved, 1 not resolved, 8 archived by EPA without a recorded fix) and 13 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1990s | 3 | 1 |
| 2000s | 15 | 1 |
| 2010 to October 18, 2016 | 15 | 11 |
| October 19, 2016 to 2019 | 1 | 2 |
| 2020s | 1 | 0 |
Most recent health-based violation before October 19, 2016: Groundwater Rule, began June 2016, Active.
Show all 33 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Groundwater Rule
Treatment technique failure
|
Jun 23, 2016 | Active |
|
Interim Enhanced Surface Water Treatment Rule (acute)
Treatment technique failure
|
May 1, 2016 | Resolved |
|
Long Term 2 Enhanced Surface Water Treatment Rule
Treatment technique failure
|
May 1, 2016 | Resolved |
|
Long Term 2 Enhanced Surface Water Treatment Rule
Treatment technique failure
|
Apr 1, 2016 | Resolved |
|
Chlorine dioxide (acute)
Disinfectant residual limit exceeded
|
Mar 1, 2016 | Resolved |
|
Chlorine dioxide (acute)
Disinfectant residual limit exceeded
|
Jan 1, 2016 | Resolved |
|
Chlorine dioxide (acute)
Disinfectant residual limit exceeded
|
Dec 1, 2015 | Archived |
|
Chlorine dioxide (acute)
Disinfectant residual limit exceeded
|
Nov 1, 2015 | Archived |
|
Chlorine dioxide (acute)
Disinfectant residual limit exceeded
|
Oct 1, 2015 | Archived |
|
Chlorine dioxide (acute)
Disinfectant residual limit exceeded
|
Sep 1, 2015 | Archived |
|
Total Coliform
Contaminant limit exceeded
|
Sep 1, 2014 | Resolved |
|
Long Term 2 Enhanced Surface Water Treatment Rule
Treatment technique failure
|
Jun 1, 2014 | Resolved |
|
Long Term 2 Enhanced Surface Water Treatment Rule
Treatment technique failure
|
May 1, 2014 | Resolved |
|
Chlorite
Contaminant limit exceeded
Measured 1.07 mg/L, federal limit 1 mg/L (1.1 times the limit)
|
Sep 1, 2012 | Resolved |
|
CARBON, TOTAL
Treatment technique failure
|
Jul 1, 2011 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Dec 1, 2008 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Jul 1, 2006 | Resolved |
|
Chlorite
Contaminant limit exceeded
Measured 1.09 mg/L, federal limit 1 mg/L (1.1 times the limit)
|
May 1, 2006 | Resolved |
|
CARBON, TOTAL
Treatment technique failure
|
Jan 1, 2006 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Jan 1, 2005 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
|
Oct 1, 2003 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
|
Jul 1, 2003 | Resolved |
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
|
Apr 1, 2003 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
|
Apr 1, 2003 | Resolved |
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
|
Jan 1, 2003 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.118 mg/L, federal limit 0.08 mg/L (1.5 times the limit)
|
Jan 1, 2003 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.121 mg/L, federal limit 0.08 mg/L (1.5 times the limit)
|
Oct 1, 2002 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.135 mg/L, federal limit 0.08 mg/L (1.7 times the limit)
|
Jul 1, 2002 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.14 mg/L, federal limit 0.08 mg/L (1.8 times the limit)
|
Apr 1, 2002 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Jan 1, 2000 | Archived |
|
Surface Water Treatment Rule
Treatment technique failure
|
Feb 1, 1996 | Archived |
|
Total Coliform
Contaminant limit exceeded
|
Jun 1, 1992 | Archived |
|
Total Coliform
Contaminant limit exceeded
|
Jan 1, 1991 | Archived |
Enforcement actions
Louisiana regulators took 3 formal enforcement actions against Parish Utilities of Ascension between 2003 and 2016. The most recent was a compliance order (no penalty) in March 2016.
| Date | By | Action | Violations covered |
|---|---|---|---|
| Mar 24, 2016 | Louisiana | Compliance order (no penalty) | 16 violations (10 health-based): Chlorite, Long Term 2 Enhanced Surface Water Treatment Rule, Chlorine dioxide, Interim Enhanced Surface Water Treatment Rule |
| Jan 4, 2004 | Louisiana | Compliance order (no penalty) | 4 violations (4 health-based): Total Trihalomethanes (TTHMs) |
| Apr 21, 2003 | Louisiana | Compliance order (no penalty) | 4 violations (4 health-based): Total Trihalomethanes (TTHMs) |
What the violations mean
Long Term 2 Enhanced Surface Water Treatment Rule
3 incidentsThe system failed required surface water treatment or filtration standards
Untreated or inadequately treated surface water can contain bacteria and viruses
Total Trihalomethanes (TTHMs)
1 incidentDisinfection byproduct levels exceeded the federal limit
Long-term TTHM exposure may increase bladder cancer risk
Groundwater Rule
1 incidentThe 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 this violation.
Where the water comes from
Parish Utilities of Ascension draws water from 1 surface water intake.
Annual water quality report
Parish Utilities of Ascension 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