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Public water system record

Pleasant Ridge Water System

On record as serving LaSalle Parish, LA · Serves 540 people

Federal records show 8 health-based violations and 3 monitoring/reporting issues for Pleasant Ridge Water System in the last ten years. The most serious issue in this window was a resolved LEAD AND COPPER RULE REVISIONS violation.

  • LA1059006
  • OLLA
  • LA
  • 540 served

System profile

Source water Purchased groundwater
ZIP 71465
EPA system ID LA1059006

Verify this system on EPA ECHO →

Health-based violations, last 10 years
8
Resolved
8
Unresolved
0
Any acute record
No
Monitoring issues, last 10 years
3

Key facts

  • Pleasant Ridge Water System buys its water from Town of Olla Water System and Summerville Water System.
  • Highest measured level in the last 10 years: Total Trihalomethanes (TTHMs), 112 µg/L, federal limit 80 µg/L (1.4 times the limit), 2017.
  • Most recent formal enforcement: compliance order (no penalty) by Louisiana, June 2016.
  • Record on file since 1999, with 9 health-based violations before October 19, 2016.
  • Lead pipe inventory: 0 lead and 0 unknown out of 194 service lines.

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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
LEAD AND COPPER RULE REVISIONS
Treatment technique failure
 350 Oct 17, 2024 Resolved No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.102 mg/L, federal limit 0.08 mg/L (1.3 times the limit)
 220 Jan 1, 2019 Resolved No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 81 µg/L, federal limit 80 µg/L (at or just above the limit)
 220 Apr 1, 2018 Resolved No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 81 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 104 µg/L, federal limit 80 µg/L (1.3 times the limit)
 220 Oct 1, 2017 Resolved No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 112 µg/L, federal limit 80 µg/L (1.4 times the limit)
 220 Jul 1, 2017 Resolved No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 86 µg/L, federal limit 80 µg/L (1.1 times the limit)
 220 Apr 1, 2017 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, 2017 Resolved No

Monitoring and reporting issues

Since October 2016

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

Issue Start date Status
Lead and Copper Rule
Monitoring and reporting
 Dec 2, 2023 Resolved
Public Notice
OTHER
 May 30, 2017 Resolved
Total Trihalomethanes (TTHMs)
Monitoring and reporting
 Jul 31, 2016 Resolved

Full record since 1999

EPA's records for Pleasant Ridge Water System go back to 1999. Before October 19, 2016 they list 9 health-based violations (9 resolved) and 7 monitoring or reporting violations.

Violations that began in Health-based Monitoring and reporting
1990s 0 1
2000s 4 1
2010 to October 18, 2016 5 5
October 19, 2016 to 2019 7 1
2020s 1 1

Most recent health-based violation before October 19, 2016: Total Trihalomethanes (TTHMs), began April 2016, Resolved.

Show all 9 health-based violations before October 19, 2016
Contaminant Start date Status
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 97 µg/L, federal limit 80 µg/L (1.2 times the limit)
 Apr 1, 2016 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 87 µg/L, federal limit 80 µg/L (1.1 times the limit)
 Jan 1, 2016 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 91 µg/L, federal limit 80 µg/L (1.1 times the limit)
 Oct 1, 2015 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 88 µg/L, federal limit 80 µg/L (1.1 times the limit)
 Jul 1, 2015 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 83 µg/L, federal limit 80 µg/L (at or just above the limit)
 Apr 1, 2015 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 82 µg/L, federal limit 80 µg/L (at or just above the limit)
 Oct 1, 2008 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 83 µg/L, federal limit 80 µg/L (at or just above the limit)
 Jul 1, 2008 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 82 µg/L, federal limit 80 µg/L (at or just above the limit)
 Apr 1, 2008 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
 Apr 1, 2005 Resolved

Enforcement actions

Louisiana regulators took 2 formal enforcement actions against Pleasant Ridge Water System between 2010 and 2016. The most recent was a compliance order (no penalty) in June 2016.

Date By Action Violations covered
Jun 14, 2016 Louisiana Compliance order (no penalty) 12 violations (12 health-based): Total Trihalomethanes (TTHMs)
May 10, 2010 Louisiana Compliance order (no penalty) 3 violations (3 health-based): Total Trihalomethanes (TTHMs)

What the violations mean

Total Trihalomethanes (TTHMs)

7 incidents

Disinfection byproduct levels exceeded the federal limit

Long-term TTHM exposure may increase bladder cancer risk

LEAD AND COPPER RULE REVISIONS

1 incident

The system did not complete a treatment step or action that the LEAD AND COPPER RULE REVISIONS requires (a treatment technique violation).

The utility had to notify customers about this violation.

Where the water comes from

Pleasant Ridge Water System buys its water from Town of Olla Water System and Summerville Water System. It lists no wells or intakes of its own.

Buys water from

Annual water quality report

Pleasant Ridge 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