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Public water system record

Lake St John Waterworks District 1

Serves Spokane, Concordia Parish, LA · 2,067 people served

Federal records show 43 health-based violations and 7 monitoring/reporting issues for Lake St John Waterworks District 1 in the last ten years. The most serious issue in this window was a resolved Total Trihalomethanes (TTHMs) violation.

  • LA1029006
  • FERRIDAY
  • LA
  • 2,067 served

System profile

Source water Groundwater
ZIP 71334
EPA system ID LA1029006

Verify this system on EPA ECHO →

Health-based violations, last 10 years
43
Resolved
43
Unresolved
0
Any acute record
No
Monitoring issues, last 10 years
7

Key facts

  • Lake St John Waterworks District 1 draws water from 2 wells.
  • Highest measured level in the last 10 years: Total Trihalomethanes (TTHMs), 100 µg/L, federal limit 80 µg/L (1.3 times the limit), 2017.
  • Most recent formal enforcement: compliance order (no penalty) by Louisiana, May 2014.
  • Record on file since 1999, with 62 health-based violations before October 19, 2016.
  • Lead pipe inventory: 0 lead and 0 unknown out of 691 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
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.081 mg/L, federal limit 0.08 mg/L (at or just above the limit)
 220 Oct 1, 2023 Resolved No
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.062 mg/L, federal limit 0.06 mg/L (at or just above the limit)
 220 Jul 1, 2023 Resolved No
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 65 µg/L, federal limit 60 µg/L (1.1 times the limit)
 220 Apr 1, 2023 Resolved No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 91 µg/L, federal limit 80 µg/L (1.1 times the limit)
 220 Apr 1, 2023 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, 2023 Resolved No
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.068 mg/L, federal limit 0.06 mg/L (1.1 times the limit)
 220 Jan 1, 2023 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, 2022 Resolved No
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, 2022 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 Jul 1, 2022 Resolved No
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.066 mg/L, federal limit 0.06 mg/L (1.1 times the limit)
 220 Apr 1, 2022 Resolved No
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.067 mg/L, federal limit 0.06 mg/L (1.1 times the limit)
 220 Jan 1, 2022 Resolved No
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.068 mg/L, federal limit 0.06 mg/L (1.1 times the limit)
 220 Oct 1, 2021 Resolved No
Groundwater Rule
Treatment technique failure
 140 Sep 6, 2021 Resolved No
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.068 mg/L, federal limit 0.06 mg/L (1.1 times the limit)
 220 Jul 1, 2021 Resolved No
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.071 mg/L, federal limit 0.06 mg/L (1.2 times the limit)
 220 Apr 1, 2021 Resolved 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 Apr 1, 2021 Resolved No
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.069 mg/L, federal limit 0.06 mg/L (1.2 times the limit)
 220 Jan 1, 2021 Resolved No
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.069 mg/L, federal limit 0.06 mg/L (1.2 times the limit)
 220 Oct 1, 2020 Resolved No
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.074 mg/L, federal limit 0.06 mg/L (1.2 times the limit)
 220 Jul 1, 2020 Resolved No
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.069 mg/L, federal limit 0.06 mg/L (1.2 times the limit)
 220 Apr 1, 2020 Resolved 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 Jan 1, 2020 Resolved No
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.07 mg/L, federal limit 0.06 mg/L (1.2 times 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
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.072 mg/L, federal limit 0.06 mg/L (1.2 times the limit)
 220 Oct 1, 2019 Resolved No
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.062 mg/L, federal limit 0.06 mg/L (at or just above the limit)
 220 Jul 1, 2019 Resolved No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.084 mg/L, federal limit 0.08 mg/L (1.1 times the limit)
 220 Jan 1, 2019 Resolved No
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.07 mg/L, federal limit 0.06 mg/L (1.2 times the limit)
 220 Jan 1, 2019 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 Oct 1, 2018 Resolved No
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.069 mg/L, federal limit 0.06 mg/L (1.2 times the limit)
 220 Oct 1, 2018 Resolved No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 93 µg/L, federal limit 80 µg/L (1.2 times the limit)
 220 Jul 1, 2018 Resolved No
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 74 µg/L, federal limit 60 µg/L (1.2 times the limit)
 220 Jul 1, 2018 Resolved No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 94 µg/L, federal limit 80 µg/L (1.2 times the limit)
 220 Apr 1, 2018 Resolved No
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 74 µg/L, federal limit 60 µg/L (1.2 times the limit)
 220 Apr 1, 2018 Resolved No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 93 µg/L, federal limit 80 µg/L (1.2 times the limit)
 220 Jan 1, 2018 Resolved No
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 64 µg/L, federal limit 60 µg/L (1.1 times the limit)
 220 Jan 1, 2018 Resolved No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 98 µg/L, federal limit 80 µg/L (1.2 times the limit)
 220 Oct 1, 2017 Resolved No
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 67 µg/L, federal limit 60 µg/L (1.1 times the limit)
 220 Oct 1, 2017 Resolved No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 100 µg/L, federal limit 80 µg/L (1.3 times the limit)
 220 Jul 1, 2017 Resolved No
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 64 µg/L, federal limit 60 µg/L (1.1 times the limit)
 220 Jul 1, 2017 Resolved No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 98 µg/L, federal limit 80 µg/L (1.2 times the limit)
 220 Apr 1, 2017 Resolved No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 93 µg/L, federal limit 80 µg/L (1.2 times the limit)
 220 Jan 1, 2017 Resolved No
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 61 µg/L, federal limit 60 µg/L (at or just above the limit)
 220 Jan 1, 2017 Resolved No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 92 µg/L, federal limit 80 µg/L (1.2 times the limit)
 220 Oct 1, 2016 Resolved No

Monitoring and reporting issues

Since October 2016

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

Issue Start date Status
Public Notice
OTHER
 May 4, 2022 Resolved
Public Notice
OTHER
 Oct 14, 2021 Resolved
Consumer Confidence Rule
OTHER
 Oct 1, 2017 Resolved
Total Trihalomethanes (TTHMs)
Monitoring and reporting
 Jul 31, 2014 Resolved
Haloacetic Acids (HAA5)
Monitoring and reporting
 Jul 31, 2014 Resolved
Total Trihalomethanes (TTHMs)
Monitoring and reporting
 May 1, 2014 Resolved
Haloacetic Acids (HAA5)
Monitoring and reporting
 May 1, 2014 Resolved

Full record since 1999

EPA's records for Lake St John Waterworks District 1 go back to 1999. Before October 19, 2016 they list 62 health-based violations (59 resolved, 3 archived by EPA without a recorded fix) and 15 monitoring or reporting violations.

Violations that began in Health-based Monitoring and reporting
1990s 0 1
2000s 19 8
2010 to October 18, 2016 43 6
October 19, 2016 to 2019 20 1
2020s 22 2

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

Show all 62 health-based violations before October 19, 2016
Contaminant Start date Status
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 92 µg/L, federal limit 80 µg/L (1.2 times the limit)
 Oct 1, 2016 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 92 µg/L, federal limit 80 µg/L (1.2 times the limit)
 Jul 1, 2016 Resolved
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 64 µg/L, federal limit 60 µg/L (1.1 times the limit)
 Jul 1, 2016 Resolved
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 69 µg/L, federal limit 60 µg/L (1.2 times the limit)
 Apr 1, 2016 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 98 µg/L, federal limit 80 µg/L (1.2 times the limit)
 Apr 1, 2016 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 102 µg/L, federal limit 80 µg/L (1.3 times the limit)
 Jan 1, 2016 Resolved
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 73 µg/L, federal limit 60 µg/L (1.2 times the limit)
 Jan 1, 2016 Resolved
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 75 µg/L, federal limit 60 µg/L (1.3 times the limit)
 Oct 1, 2015 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 101 µg/L, federal limit 80 µg/L (1.3 times the limit)
 Oct 1, 2015 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 100 µg/L, federal limit 80 µg/L (1.3 times the limit)
 Jul 1, 2015 Resolved
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 79 µg/L, federal limit 60 µg/L (1.3 times the limit)
 Jul 1, 2015 Resolved
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 75 µg/L, federal limit 60 µg/L (1.3 times the limit)
 Apr 1, 2015 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 101 µg/L, federal limit 80 µg/L (1.3 times the limit)
 Apr 1, 2015 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 96 µg/L, federal limit 80 µg/L (1.2 times the limit)
 Jan 1, 2015 Resolved
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 75 µg/L, federal limit 60 µg/L (1.3 times the limit)
 Jan 1, 2015 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 95 µg/L, federal limit 80 µg/L (1.2 times the limit)
 Oct 1, 2014 Resolved
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 73 µg/L, federal limit 60 µg/L (1.2 times the limit)
 Oct 1, 2014 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 94 µg/L, federal limit 80 µg/L (1.2 times the limit)
 Jul 1, 2014 Resolved
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 82 µg/L, federal limit 60 µg/L (1.4 times the limit)
 Jul 1, 2014 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 93 µg/L, federal limit 80 µg/L (1.2 times the limit)
 Apr 1, 2014 Resolved
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 85 µg/L, federal limit 60 µg/L (1.4 times the limit)
 Apr 1, 2014 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 89 µg/L, federal limit 80 µg/L (1.1 times the limit)
 Jan 1, 2014 Archived
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 66 µg/L, federal limit 60 µg/L (1.1 times the limit)
 Jan 1, 2014 Resolved
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 66 µg/L, federal limit 60 µg/L (1.1 times the limit)
 Oct 1, 2013 Archived
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 89 µg/L, federal limit 80 µg/L (1.1 times the limit)
 Oct 1, 2013 Archived
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 67 µg/L, federal limit 60 µg/L (1.1 times the limit)
 Jul 1, 2013 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 92 µg/L, federal limit 80 µg/L (1.2 times the limit)
 Jul 1, 2013 Resolved
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 69 µg/L, federal limit 60 µg/L (1.2 times the limit)
 Apr 1, 2013 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 85 µg/L, federal limit 80 µg/L (1.1 times the limit)
 Apr 1, 2013 Resolved
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 80 µg/L, federal limit 60 µg/L (1.3 times the limit)
 Jan 1, 2013 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 93 µg/L, federal limit 80 µg/L (1.2 times the limit)
 Jan 1, 2013 Resolved
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 97 µg/L, federal limit 60 µg/L (1.6 times the limit)
 Oct 1, 2012 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 93 µg/L, federal limit 80 µg/L (1.2 times the limit)
 Oct 1, 2012 Resolved
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 101 µg/L, federal limit 60 µg/L (1.7 times the limit)
 Jul 1, 2012 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 88 µg/L, federal limit 80 µg/L (1.1 times the limit)
 Jul 1, 2012 Resolved
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 98 µg/L, federal limit 60 µg/L (1.6 times the limit)
 Apr 1, 2012 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 83 µg/L, federal limit 80 µg/L (at or just above the limit)
 Apr 1, 2012 Resolved
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 93 µg/L, federal limit 60 µg/L (1.6 times the limit)
 Jan 1, 2012 Resolved
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 91 µg/L, federal limit 60 µg/L (1.5 times the limit)
 Oct 1, 2011 Resolved
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 79 µg/L, federal limit 60 µg/L (1.3 times the limit)
 Jul 1, 2011 Resolved
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 73 µg/L, federal limit 60 µg/L (1.2 times the limit)
 Apr 1, 2011 Resolved
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 73 µg/L, federal limit 60 µg/L (1.2 times the limit)
 Jan 1, 2011 Resolved
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 64 µg/L, federal limit 60 µg/L (1.1 times the limit)
 Oct 1, 2010 Resolved
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 78 µg/L, federal limit 60 µg/L (1.3 times the limit)
 Apr 1, 2009 Resolved
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 85 µg/L, federal limit 60 µg/L (1.4 times the limit)
 Jan 1, 2009 Resolved
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 94 µg/L, federal limit 60 µg/L (1.6 times the limit)
 Oct 1, 2008 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 82 µg/L, federal limit 80 µg/L (at or just above the limit)
 Jul 1, 2008 Resolved
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 122 µg/L, federal limit 60 µg/L (2 times the limit)
 Jul 1, 2008 Resolved
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 119 µg/L, federal limit 60 µg/L (2 times the limit)
 Apr 1, 2008 Resolved
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 109 µg/L, federal limit 60 µg/L (1.8 times the limit)
 Jan 1, 2008 Resolved

12 older violations are not listed here. EPA ECHO has the complete list.

Enforcement actions

Louisiana regulators and EPA took 3 formal enforcement actions against Lake St John Waterworks District 1 between 2002 and 2014, filed as 4 records in EPA's data. The most recent was a compliance order (no penalty) in May 2014.

Date By Action Violations covered
May 6, 2014 Louisiana Compliance order (no penalty) 113 violations (103 health-based): Haloacetic Acids (HAA5), Total Trihalomethanes (TTHMs)
Mar 13, 2006 Louisiana Compliance order (no penalty) 57 violations (49 health-based): Haloacetic Acids (HAA5), Total Trihalomethanes (TTHMs)
Nov 12, 2002 EPA Compliance order (no penalty) 2 violations: Consumer Confidence Rule

What the violations mean

Haloacetic Acids (HAA5)

24 incidents

Haloacetic acid byproducts exceeded the federal limit

Long-term exposure to HAAs may increase cancer risk

Total Trihalomethanes (TTHMs)

18 incidents

Disinfection byproduct levels exceeded the federal limit

Long-term TTHM exposure may increase bladder cancer risk

Groundwater Rule

1 incident

The 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

Lake St John Waterworks District 1 draws water from 2 wells.

Annual water quality report

Lake St John 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