Public water system record

Assumption Parish WW District 1

Serves an area of Assumption Parish, LA that includes Supreme, Paincourtville, Labadieville and 2 more places · 21,366 people served

Federal records show 2 health-based violations and 2 monitoring/reporting issues for Assumption Parish WW District 1 in the last ten years. The most serious issue in this window was a resolved Haloacetic Acids (HAA5) violation.

  • LA1007001
  • NAPOLEONVILLE
  • LA
  • 21,366 served

System profile

Source water Surface water
ZIP 70390
EPA system ID LA1007001

Verify this system on EPA ECHO →

Health-based violations, last 10 years
2
Resolved
2
Unresolved
0
Any acute record
No
Monitoring issues, last 10 years
2

Key facts

  • Assumption Parish WW District 1 draws water from 2 surface water intakes.
  • Highest measured level in the last 10 years: Haloacetic Acids (HAA5), 0.064 mg/L, federal limit 0.06 mg/L (1.1 times the limit), 2019.
  • Most recent formal enforcement: compliance order (no penalty) by Louisiana, November 2014.
  • Record on file since 1994, with 25 health-based violations before October 19, 2016.
  • Lead pipe inventory: 0 lead and 0 unknown out of 9,728 service lines.

Check whether Assumption Parish WW District 1 serves your address

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Health-based violations

Since October 2016

Violation data reflects EPA records through March 2026. For the most current status, visit the EPA ECHO database.

Contaminant Rule family Start date Status Acute
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.063 mg/L, federal limit 0.06 mg/L (1.1 times the limit)
220 Oct 1, 2019 Resolved No
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.064 mg/L, federal limit 0.06 mg/L (1.1 times the limit)
220 Jul 1, 2019 Resolved No

Monitoring and reporting issues

Since October 2016

Missed tests or reports, not contaminants found above a limit.

Issue Start date Status
Revised Total Coliform Rule
Monitoring violation
Oct 1, 2017 Resolved
Total Trihalomethanes (TTHMs)
Monitoring and reporting
Jul 31, 2014 Resolved

Full record since 1994

EPA's records for Assumption Parish WW District 1 go back to 1994. Before October 19, 2016 they list 25 health-based violations (23 resolved, 2 archived by EPA without a recorded fix) and 4 monitoring or reporting violations.

Violations that began in Health-based Monitoring and reporting
1990s 1 0
2000s 4 2
2010 to October 18, 2016 20 2
October 19, 2016 to 2019 2 1

Most recent health-based violation before October 19, 2016: Interim Enhanced Surface Water Treatment Rule (acute), began August 2016, Resolved.

Show all 25 health-based violations before October 19, 2016
Contaminant Start date Status
Interim Enhanced Surface Water Treatment Rule (acute)
Treatment technique failure
Aug 1, 2016 Resolved
Total Coliform (acute)
Contaminant limit exceeded
Nov 1, 2015 Resolved
Interim Enhanced Surface Water Treatment Rule (acute)
Treatment technique failure
May 1, 2015 Resolved
Total Coliform
Contaminant limit exceeded
Apr 1, 2015 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 81 µg/L, federal limit 80 µg/L (at or just above the limit)
Apr 1, 2014 Resolved
Total Coliform
Contaminant limit exceeded
Apr 1, 2014 Resolved
Total Coliform
Contaminant limit exceeded
Nov 1, 2013 Resolved
Total Coliform
Contaminant limit exceeded
Oct 1, 2013 Resolved
Total Coliform
Contaminant limit exceeded
Sep 1, 2013 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 101 µg/L, federal limit 80 µg/L (1.3 times the limit)
Jul 1, 2013 Resolved
Total Coliform
Contaminant limit exceeded
Jul 1, 2013 Resolved
Total Coliform
Contaminant limit exceeded
Oct 1, 2012 Resolved
Total Coliform
Contaminant limit exceeded
Sep 1, 2012 Resolved
Total Coliform
Contaminant limit exceeded
Aug 1, 2012 Resolved
Interim Enhanced Surface Water Treatment Rule (acute)
Treatment technique failure
Apr 1, 2011 Resolved
CARBON, TOTAL
Treatment technique failure
Apr 1, 2011 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 81 µg/L, federal limit 80 µg/L (at or just above the limit)
Jan 1, 2011 Resolved
CARBON, TOTAL
Treatment technique failure
Jan 1, 2011 Resolved
Interim Enhanced Surface Water Treatment Rule (acute)
Treatment technique failure
Nov 1, 2010 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 82 µg/L, federal limit 80 µg/L (at or just above the limit)
Oct 1, 2010 Resolved
Total Coliform
Contaminant limit exceeded
Jul 1, 2009 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 81 µg/L, federal limit 80 µg/L (at or just above the limit)
Jul 1, 2007 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Jan 1, 2003 Archived
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Oct 1, 2002 Resolved
Surface Water Treatment Rule
Treatment technique failure
May 1, 1994 Archived

Enforcement actions

Louisiana regulators and EPA took 4 formal enforcement actions against Assumption Parish WW District 1 between 1994 and 2014. The most recent was a compliance order (no penalty) in November 2014.

Date By Action Violations covered
Nov 20, 2014 Louisiana Compliance order (no penalty) 20 violations (18 health-based): Total Coliform, Total Trihalomethanes (TTHMs), Public Notice, Interim Enhanced Surface Water Treatment Rule, CARBON, TOTAL
May 25, 2004 EPA Compliance order (no penalty) 2 violations (2 health-based): Total Trihalomethanes (TTHMs)
Mar 6, 1995 Louisiana Signed compliance agreement 1 violation (1 health-based): Surface Water Treatment Rule
May 16, 1994 Louisiana Signed compliance agreement 1 violation (1 health-based): Surface Water Treatment Rule

What the violations mean

Haloacetic Acids (HAA5)

2 incidents

Haloacetic acid byproducts exceeded the federal limit

Long-term exposure to HAAs may increase cancer risk

Where the water comes from

Assumption Parish WW District 1 draws water from 2 surface water intakes. 1 other community water system buys water from Assumption Parish WW District 1.

Community systems that buy water from it

Annual water quality report

Assumption Parish WW District 1 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 10,000 or more people must mail or deliver the report to every customer, and from 2027 they must send it twice a year.

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.