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Water utility · De Soto Parish · Louisiana

City of Mansfield Water System

No open health-based violations on EPA record in the last 10 years; latest legal-limit breach in the period starting April 2024.

Serves about 7,512 people (2,504 connections) with surface water from its own intake.

  • PWSID LA1031009
  • EPA registered name: CITY OF MANSFIELD WATER SYSTEM
  • EPA record checked June 23, 2026
Contact

Contact City of Mansfield Water System

From EPA's record for LA1031009. PurityMap is independent of City of Mansfield Water System.

Mailing address
City of Mansfield, P.O. Box 773
MANSFIELD, LA 71052
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EPA compliance record

What EPA's record shows

23 health-based violations in the last 10 years, from EPA's SDWIS compliance database.

  • Total trihalomethanes (TTHM), a by-product of disinfecting water with chlorine, were above the legal limit in 9 quarters since January 2017.
Recent health-based violations for City of Mansfield Water System (PWSID LA1031009)
PeriodContaminantMeasuredLegal limitEPA status
From February 2026Interim Enhanced Surface Water Treatment Rule––Archived
From March 2025Interim Enhanced Surface Water Treatment Rule––Resolved
From February 2025Interim Enhanced Surface Water Treatment Rule––Resolved
From January 2025Interim Enhanced Surface Water Treatment Rule––Resolved
From November 2024Interim Enhanced Surface Water Treatment Rule––Resolved
Show all 23
PeriodContaminantMeasuredLegal limitEPA status
From November 2024Interim Enhanced Surface Water Treatment Rule––Resolved
From October 2024Interim Enhanced Surface Water Treatment Rule––Resolved
From August 2024Interim Enhanced Surface Water Treatment Rule––Resolved
From July 2024Interim Enhanced Surface Water Treatment Rule––Resolved
Apr–Jun 2024Total trihalomethanes (TTHM)0.112 mg/L0.080 mg/LResolved
From March 2024Interim Enhanced Surface Water Treatment Rule––Resolved
From January 2024Interim Enhanced Surface Water Treatment Rule––Resolved
From January 2024Interim Enhanced Surface Water Treatment Rule––Resolved
Jan–Mar 2024Total trihalomethanes (TTHM)0.113 mg/L0.080 mg/LResolved
Oct–Dec 2023Total trihalomethanes (TTHM)0.102 mg/L0.080 mg/LResolved
Jul–Sep 2023Total trihalomethanes (TTHM)0.097 mg/L0.080 mg/LResolved
Apr–Jun 2018Total trihalomethanes (TTHM)84 µg/L0.080 mg/LResolved
From October 2017Carbon, total–TTArchived
Oct–Dec 2017Total trihalomethanes (TTHM)96 µg/L0.080 mg/LResolved
Jul–Sep 2017Total trihalomethanes (TTHM)91 µg/L0.080 mg/LResolved
From July 2017Carbon, total–TTResolved
Apr–Jun 2017Total trihalomethanes (TTHM)85 µg/L0.080 mg/LResolved
Jan–Mar 2017Total trihalomethanes (TTHM)86 µg/L0.080 mg/LResolved
  • Lead: the 90th-percentile result in the latest lead and copper round (the round ending December 31, 2023) was 1 µg/L. The federal action level is 15 µg/L, a trigger for more treatment steps, not a legal limit.
  • Copper: the 90th-percentile result was 1.6 mg/L (1.3 mg/L federal action level).
  • Missed or late tests or reports: none in 10 years.
  • EPA lists 81 enforcement actions in 10 years; the latest on March 12, 2026.
Lab results EPA required (UCMR 5)

1 of 30 contaminants detected in EPA testing

EPA required this system to test for 30 unregulated and emerging contaminants, from January 2025 to October 2025.

  • Perfluoropentanoic acid (PFPeA)Detected, no limit
    No federal limit
    3.5ng/L
Results as a table30 results with limit, status, sample date and source
EPA-required lab results (UCMR 5) for City of Mansfield Water System (PWSID LA1031009), Louisiana
ContaminantResultLimitStatusSampledSource
Perfluoropentanoic acid (PFPeA)3.5 ng/LNo federal or state limit; shown for transparencyDetected, no limit2025-02-10 to 2025-10-15UCMR5 Analytical Results: CITY OF MANSFIELD WATER SYSTEM (LA1031009)
11-Chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (11Cl-PF3OUdS)< 5 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2025-02-10 to 2025-10-15UCMR5 Analytical Results: CITY OF MANSFIELD WATER SYSTEM (LA1031009)
1H, 1H, 2H, 2H-perfluorodecane sulfonic acid (8:2 FTS)< 5 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2025-02-10 to 2025-10-15UCMR5 Analytical Results: CITY OF MANSFIELD WATER SYSTEM (LA1031009)
1H, 1H, 2H, 2H-perfluorohexane sulfonic acid (4:2 FTS)< 3 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2025-02-10 to 2025-10-15UCMR5 Analytical Results: CITY OF MANSFIELD WATER SYSTEM (LA1031009)
1H, 1H, 2H, 2H-perfluorooctane sulfonic acid (6:2 FTS)< 5 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2025-02-10 to 2025-10-15UCMR5 Analytical Results: CITY OF MANSFIELD WATER SYSTEM (LA1031009)
4,8-Dioxa-3H-perfluorononanoic acid (ADONA)< 3 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2025-02-10 to 2025-10-15UCMR5 Analytical Results: CITY OF MANSFIELD WATER SYSTEM (LA1031009)
9-Chlorohexadecafluoro-3-oxanone-1-sulfonic acid (9Cl-PF3ONS)< 2 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2025-02-10 to 2025-10-15UCMR5 Analytical Results: CITY OF MANSFIELD WATER SYSTEM (LA1031009)
Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals)< 5 ng/L10 ng/L federal MCL (2024)Not detected above the reporting limit2025-02-10 to 2025-10-15UCMR5 Analytical Results: CITY OF MANSFIELD WATER SYSTEM (LA1031009)
Lithium< 9 µg/L10 µg/L EPA health reference level (screening, not a legal limit)Screening level, not a legal limitNot detected above the reporting limit2025-01-08 to 2025-10-15UCMR5 Analytical Results: CITY OF MANSFIELD WATER SYSTEM (LA1031009)
N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA)< 5 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2025-01-08 to 2025-10-15UCMR5 Analytical Results: CITY OF MANSFIELD WATER SYSTEM (LA1031009)
N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA)< 6 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2025-01-08 to 2025-10-15UCMR5 Analytical Results: CITY OF MANSFIELD WATER SYSTEM (LA1031009)
Nonafluoro-3,6-dioxaheptanoic acid (NFDHA)< 20 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2025-02-10 to 2025-10-15UCMR5 Analytical Results: CITY OF MANSFIELD WATER SYSTEM (LA1031009)
Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA)< 3 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2025-02-10 to 2025-10-15UCMR5 Analytical Results: CITY OF MANSFIELD WATER SYSTEM (LA1031009)
Perfluoro-3-methoxypropanoic acid (PFMPA)< 4 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2025-02-10 to 2025-10-15UCMR5 Analytical Results: CITY OF MANSFIELD WATER SYSTEM (LA1031009)
Perfluoro-4-methoxybutanoic acid (PFMBA)< 3 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2025-02-10 to 2025-10-15UCMR5 Analytical Results: CITY OF MANSFIELD WATER SYSTEM (LA1031009)
Perfluorobutanesulfonic acid (PFBS)< 3 ng/L2,000 ng/L EPA health advisory (screening, not a legal limit)Screening level, not a legal limitNot detected above the reporting limit2025-02-10 to 2025-10-15UCMR5 Analytical Results: CITY OF MANSFIELD WATER SYSTEM (LA1031009)
Perfluorobutanoic acid (PFBA)< 5 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2025-02-10 to 2025-10-15UCMR5 Analytical Results: CITY OF MANSFIELD WATER SYSTEM (LA1031009)
Perfluorodecanoic acid (PFDA)< 3 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2025-02-10 to 2025-10-15UCMR5 Analytical Results: CITY OF MANSFIELD WATER SYSTEM (LA1031009)
Perfluorododecanoic acid (PFDoA)< 3 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2025-02-10 to 2025-10-15UCMR5 Analytical Results: CITY OF MANSFIELD WATER SYSTEM (LA1031009)
Perfluoroheptanesulfonic acid (PFHpS)< 3 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2025-02-10 to 2025-10-15UCMR5 Analytical Results: CITY OF MANSFIELD WATER SYSTEM (LA1031009)
Perfluoroheptanoic acid (PFHpA)< 3 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2025-02-10 to 2025-10-15UCMR5 Analytical Results: CITY OF MANSFIELD WATER SYSTEM (LA1031009)
Perfluorohexanesulfonic acid (PFHxS)< 3 ng/L10 ng/L federal MCL (2024)Not detected above the reporting limit2025-02-10 to 2025-10-15UCMR5 Analytical Results: CITY OF MANSFIELD WATER SYSTEM (LA1031009)
Perfluorohexanoic acid (PFHxA)< 3 ng/L400,000 ng/L Michigan EGLE state MCL (strictest US state)Not detected above the reporting limit2025-02-10 to 2025-10-15UCMR5 Analytical Results: CITY OF MANSFIELD WATER SYSTEM (LA1031009)
Perfluorononanoic acid (PFNA)< 4 ng/L10 ng/L federal MCL (2024)Not detected above the reporting limit2025-02-10 to 2025-10-15UCMR5 Analytical Results: CITY OF MANSFIELD WATER SYSTEM (LA1031009)
Perfluorooctanesulfonic acid (PFOS)< 4 ng/L4.0 ng/L federal MCL (2024)Not detected above the reporting limit2025-02-10 to 2025-10-15UCMR5 Analytical Results: CITY OF MANSFIELD WATER SYSTEM (LA1031009)
Perfluorooctanoic acid (PFOA)< 4 ng/L4.0 ng/L federal MCL (2024)Not detected above the reporting limit2025-02-10 to 2025-10-15UCMR5 Analytical Results: CITY OF MANSFIELD WATER SYSTEM (LA1031009)
Perfluoropentanesulfonic acid (PFPeS)< 4 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2025-02-10 to 2025-10-15UCMR5 Analytical Results: CITY OF MANSFIELD WATER SYSTEM (LA1031009)
Perfluorotetradecanoic acid (PFTA)< 8 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2025-01-08 to 2025-10-15UCMR5 Analytical Results: CITY OF MANSFIELD WATER SYSTEM (LA1031009)
Perfluorotridecanoic acid (PFTrDA)< 7 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2025-01-08 to 2025-10-15UCMR5 Analytical Results: CITY OF MANSFIELD WATER SYSTEM (LA1031009)
Perfluoroundecanoic acid (PFUnA)< 2 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2025-02-10 to 2025-10-15UCMR5 Analytical Results: CITY OF MANSFIELD WATER SYSTEM (LA1031009)
Not detected (29)
  • 11-Chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (11Cl-PF3OUdS)
  • 1H, 1H, 2H, 2H-perfluorohexane sulfonic acid (4:2 FTS)
  • 1H, 1H, 2H, 2H-perfluorooctane sulfonic acid (6:2 FTS)
  • 1H, 1H, 2H, 2H-perfluorodecane sulfonic acid (8:2 FTS)
  • 9-Chlorohexadecafluoro-3-oxanone-1-sulfonic acid (9Cl-PF3ONS)
  • 4,8-Dioxa-3H-perfluorononanoic acid (ADONA)
  • Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals)
  • N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA)
  • Nonafluoro-3,6-dioxaheptanoic acid (NFDHA)
  • N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA)
  • Perfluorobutanoic acid (PFBA)
  • Perfluorobutanesulfonic acid (PFBS)
  • Perfluorodecanoic acid (PFDA)
  • Perfluorododecanoic acid (PFDoA)
  • Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA)
  • Perfluoroheptanoic acid (PFHpA)
  • Perfluoroheptanesulfonic acid (PFHpS)
  • Perfluorohexanoic acid (PFHxA)
  • Perfluorohexanesulfonic acid (PFHxS)
  • Perfluoro-4-methoxybutanoic acid (PFMBA)
  • Perfluoro-3-methoxypropanoic acid (PFMPA)
  • Perfluorononanoic acid (PFNA)
  • Perfluorooctanoic acid (PFOA)
  • Perfluorooctanesulfonic acid (PFOS)
  • Perfluoropentanesulfonic acid (PFPeS)
  • Perfluorotetradecanoic acid (PFTA)
  • Perfluorotridecanoic acid (PFTrDA)
  • Perfluoroundecanoic acid (PFUnA)
  • Lithium
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Questions

About City of Mansfield Water System

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What is the phone number for City of Mansfield Water System?

City of Mansfield Water System's phone number on EPA record is 318-872-0406. Its mailing address is City of Mansfield, P.O. Box 773, MANSFIELD, LA 71052.

Where does City of Mansfield Water System get its water?

According to EPA's record, City of Mansfield Water System uses surface water from its own intake.

Does City of Mansfield Water System have any EPA violations?

EPA's record shows 23 health-based violations for City of Mansfield Water System in the 10 years to July 9, 2026. No open health-based violations on EPA record in the last 10 years. The latest legal-limit breach on record was in the period starting April 2024. The record comes from EPA's SDWIS compliance database.

What is City of Mansfield Water System's latest lead result?

The 90th-percentile lead result in City of Mansfield Water System's latest lead and copper round, which ended in December 2023, was 1 µg/L, below the federal action level of 15 µg/L.

Who do I contact about my City of Mansfield Water System water bill?

PurityMap has no verified website for City of Mansfield Water System. Its phone number on EPA record is 318-872-0406. Its mailing address on EPA record is City of Mansfield, P.O. Box 773, MANSFIELD, LA 71052. Your water bill lists the ways to contact your supplier and pay. PurityMap does not take payments.