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Public water system record

Lincoln Parish Waterworks District #1

Serves Vienna, Lincoln Parish, LA · 570 people served

Federal records show 6 health-based violations and no monitoring/reporting issues for Lincoln Parish Waterworks District #1 in the last ten years. The most serious issue in this window was a resolved Total Trihalomethanes (TTHMs) violation.

  • LA1061009
  • DUBACH
  • LA
  • 570 served

System profile

Source water Groundwater
ZIP 71235
EPA system ID LA1061009

Verify this system on EPA ECHO →

Health-based violations, last 10 years
6
Resolved
6
Unresolved
0
Any acute record
No
Monitoring issues, last 10 years
0

Key facts

  • Lincoln Parish Waterworks District #1 draws water from 2 wells.
  • Highest measured level in the last 10 years: Total Trihalomethanes (TTHMs), 0.086 mg/L, federal limit 0.08 mg/L (1.1 times the limit), 2019.
  • Record on file since 1994, with 2 health-based violations before October 19, 2016.
  • Lead pipe inventory: 0 lead and 0 unknown out of 187 service lines.

Check whether Lincoln Parish Waterworks 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
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.083 mg/L, federal limit 0.08 mg/L (at or just above the limit)
 220 Jul 1, 2024 Resolved No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.083 mg/L, federal limit 0.08 mg/L (at or just above the limit)
 220 Apr 1, 2024 Resolved No
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, 2024 Resolved No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.083 mg/L, federal limit 0.08 mg/L (at or just above the limit)
 220 Jan 1, 2020 Resolved No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.082 mg/L, federal limit 0.08 mg/L (at or just above the limit)
 220 Oct 1, 2019 Resolved No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.086 mg/L, federal limit 0.08 mg/L (1.1 times the limit)
 220 Jul 1, 2019 Resolved No

Full record since 1994

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

Violations that began in Health-based Monitoring and reporting
1990s 2 1
2000s 0 1
October 19, 2016 to 2019 2 0
2020s 4 0

Most recent health-based violation before October 19, 2016: Total Coliform, began January 1995, Archived.

Show all 2 health-based violations before October 19, 2016
Contaminant Start date Status
Total Coliform
Contaminant limit exceeded
 Jan 15, 1995 Archived
Total Coliform
Contaminant limit exceeded
 Dec 15, 1994 Archived

What the violations mean

Total Trihalomethanes (TTHMs)

6 incidents

Disinfection byproduct levels exceeded the federal limit

Long-term TTHM exposure may increase bladder cancer risk

Where the water comes from

Lincoln Parish Waterworks District #1 draws water from 2 wells.

Annual water quality report

Lincoln Parish Waterworks 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.

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