Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	LA1111020
PWS Name	TRI-WATER SYSTEM
PWS Type	Community water system
Owner Type	Private
Primary Source	Ground water
Primacy Type	State
Is Wholesaler?	No
Population Served	1302
County Served	Union Parish

The tables below list all violations that the state reported to EPA for this water system. Health-based violations are listed first, followed by treatment technique, MRDL, monitoring, reporting, and other violations.

Health-based	Violations of maximum contaminant levels (MCLs) or maximum residual disinfectant levels (MRDLs), which specify the highest concentrations of contaminants or disinfectants, respectively, allowed in drinking water; or of treatment technique (TT) rules, which specify required processes intended to reduce the amounts of contaminants in drinking water. MCLs, MRDLs, and treatment technique rules are all health-based drinking water standards.
Maximum Contaminant Level or MCL	The highest level of a contaminant that is allowed in drinking water. MCLs are set as close to the MCLGs as feasible using the best available treatment technology.
Treatment Technique	A required process intended to reduce the level of a contaminant in drinking water.
Maximum residual disinfectant level or MRDL	The highest level of a disinfectant allowed in drinking water. There is convincing evidence that addition of a disinfectant is necessary for control of microbial contaminants.
Monitoring & reporting	Failure to conduct regular monitoring of drinking water quality, as required by SDWA, or to submit monitoring results in a timely fashion to the primacy agency or EPA.
Public notification & other	Failure to provide notification to the public as required by the Violations of Public Notification Rule and the Consumer Confidence Report Rule, and violations of other requirements such as those violations related to variances and exemptions.

Violations

Violation Category Code	Violation Type Description	Rule Name	Contaminant Name	Violation ID	Compliance Status Description	Compliance Period Begin Date	Compliance Period End Date	Is Health Based Ind
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	8008326	Known	01-OCT-2025	31-DEC-2025	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	8008323	Known	01-JUL-2025	30-SEP-2025	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	8008321	Known	01-APR-2025	30-JUN-2025	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	8008320	Known	01-JAN-2025	31-MAR-2025	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	8008316	Known	01-OCT-2024	31-DEC-2024	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	8008313	Known	01-JUL-2024	30-SEP-2024	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	8008307	Known	01-APR-2024	30-JUN-2024	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	8008302	Known	01-JAN-2024	31-MAR-2024	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	8008301	Known	01-OCT-2023	31-DEC-2023	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	8008298	Known	01-JUL-2023	30-SEP-2023	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	8008296	Known	01-APR-2023	30-JUN-2023	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	8008292	Known	01-JAN-2023	31-MAR-2023	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	8008289	Known	01-OCT-2022	31-DEC-2022	Yes
TT	Failure To Address Deficiency	Ground Water Rule	Groundwater Rule	8008285	Returned to Compliance	20-SEP-2022	-	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	8008287	Known	01-JUL-2022	30-SEP-2022	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	8008283	Known	01-APR-2022	30-JUN-2022	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	8008282	Known	01-JAN-2022	31-MAR-2022	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	8008279	Known	01-OCT-2021	31-DEC-2021	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	8008276	Known	01-JUL-2021	30-SEP-2021	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	8008273	Known	01-APR-2021	30-JUN-2021	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	8008271	Known	01-JAN-2021	31-MAR-2021	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	8008268	Known	01-OCT-2020	31-DEC-2020	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	8008266	Known	01-JUL-2020	30-SEP-2020	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	8008262	Known	01-APR-2020	30-JUN-2020	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	8008259	Known	01-JAN-2020	31-MAR-2020	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	8008256	Known	01-OCT-2019	31-DEC-2019	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	8008255	Known	01-JUL-2019	30-SEP-2019	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	8008252	Known	01-APR-2019	30-JUN-2019	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	8008251	Known	01-JAN-2019	31-MAR-2019	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	8008249	Known	01-OCT-2018	31-DEC-2018	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	8008247	Known	01-JUL-2018	30-SEP-2018	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	8008245	Known	01-APR-2018	30-JUN-2018	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	8008241	Known	01-JAN-2018	31-MAR-2018	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	8008239	Known	01-OCT-2017	31-DEC-2017	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	8008237	Known	01-JUL-2017	30-SEP-2017	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	8008235	Known	01-APR-2017	30-JUN-2017	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	8008232	Known	01-JAN-2017	31-MAR-2017	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	8008230	Known	01-OCT-2016	31-DEC-2016	Yes
MR	Failure Submit IDSE/Subpart V Plan Rpt	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	8008226	Returned to Compliance	31-JUL-2016	-	No
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	8008228	Known	01-JUL-2016	30-SEP-2016	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	8008224	Known	01-APR-2016	30-JUN-2016	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	8008222	Known	01-JAN-2016	31-MAR-2016	Yes
MR	Monitoring, Routine Minor (TCR)	Total Coliform Rule	Coliform (TCR)	8008220	Returned to Compliance	01-DEC-2013	31-DEC-2013	No
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	8008219	Returned to Compliance	01-APR-2011	30-JUN-2011	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	8008218	Returned to Compliance	01-JAN-2011	31-MAR-2011	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	8008217	Returned to Compliance	01-OCT-2010	31-DEC-2010	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	8008216	Returned to Compliance	01-JUL-2010	30-SEP-2010	Yes
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	8008213	Returned to Compliance	01-AUG-2009	31-AUG-2009	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	8008215	Returned to Compliance	01-JUL-2009	30-SEP-2009	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	8008214	Returned to Compliance	01-APR-2009	30-JUN-2009	Yes

1 - 50 of 66

Enforcement Actions

Latest Enforcement ID	Associated To Violation ID	Enforcement Action Type Code	Enforcement Action Description	Enforcement Date	Originator Description	Enforcement Comment
6903192	8008326	SIE	State Public Notification requested	11-DEC-2025	State	-
6903190	8008323	SIF	State Public Notification received	13-NOV-2025	State	-
6903187	8008321	SIF	State Public Notification received	21-JUL-2025	State	-
6903184	8008320	SIF	State Public Notification received	05-JUN-2025	State	-
6903183	8008239	SID	State Site Visit for enforcement purposes	21-APR-2025	State	POIR for C-17-111-031-ETT Item 7.)- O/C for control of DBPs
6903183	8008316	SID	State Site Visit for enforcement purposes	21-APR-2025	State	POIR for C-17-111-031-ETT Item 7.)- O/C for control of DBPs
6903183	8008302	SID	State Site Visit for enforcement purposes	21-APR-2025	State	POIR for C-17-111-031-ETT Item 7.)- O/C for control of DBPs
6903183	8008301	SID	State Site Visit for enforcement purposes	21-APR-2025	State	POIR for C-17-111-031-ETT Item 7.)- O/C for control of DBPs
6903183	8008289	SID	State Site Visit for enforcement purposes	21-APR-2025	State	POIR for C-17-111-031-ETT Item 7.)- O/C for control of DBPs
6903183	8008282	SID	State Site Visit for enforcement purposes	21-APR-2025	State	POIR for C-17-111-031-ETT Item 7.)- O/C for control of DBPs
6903183	8008279	SID	State Site Visit for enforcement purposes	21-APR-2025	State	POIR for C-17-111-031-ETT Item 7.)- O/C for control of DBPs
6903183	8008271	SID	State Site Visit for enforcement purposes	21-APR-2025	State	POIR for C-17-111-031-ETT Item 7.)- O/C for control of DBPs
6903183	8008268	SID	State Site Visit for enforcement purposes	21-APR-2025	State	POIR for C-17-111-031-ETT Item 7.)- O/C for control of DBPs
6903183	8008259	SID	State Site Visit for enforcement purposes	21-APR-2025	State	POIR for C-17-111-031-ETT Item 7.)- O/C for control of DBPs
6903183	8008256	SID	State Site Visit for enforcement purposes	21-APR-2025	State	POIR for C-17-111-031-ETT Item 7.)- O/C for control of DBPs
6903183	8008251	SID	State Site Visit for enforcement purposes	21-APR-2025	State	POIR for C-17-111-031-ETT Item 7.)- O/C for control of DBPs
6903183	8008249	SID	State Site Visit for enforcement purposes	21-APR-2025	State	POIR for C-17-111-031-ETT Item 7.)- O/C for control of DBPs
6903183	8008241	SID	State Site Visit for enforcement purposes	21-APR-2025	State	POIR for C-17-111-031-ETT Item 7.)- O/C for control of DBPs
6903183	8008232	SID	State Site Visit for enforcement purposes	21-APR-2025	State	POIR for C-17-111-031-ETT Item 7.)- O/C for control of DBPs
6903183	8008230	SID	State Site Visit for enforcement purposes	21-APR-2025	State	POIR for C-17-111-031-ETT Item 7.)- O/C for control of DBPs
6903183	8008222	SID	State Site Visit for enforcement purposes	21-APR-2025	State	POIR for C-17-111-031-ETT Item 7.)- O/C for control of DBPs
6903182	8008307	SID	State Site Visit for enforcement purposes	07-APR-2025	State	POIR for C-17-111-031-ETT Item 3.) - O/C for submission of p/s for the control of DBPs
6903182	8008313	SID	State Site Visit for enforcement purposes	07-APR-2025	State	POIR for C-17-111-031-ETT Item 3.) - O/C for submission of p/s for the control of DBPs
6903182	8008292	SID	State Site Visit for enforcement purposes	07-APR-2025	State	POIR for C-17-111-031-ETT Item 3.) - O/C for submission of p/s for the control of DBPs
6903164	8008298	SIF	State Public Notification received	05-OCT-2023	State	-
6903161	8008296	SIF	State Public Notification received	06-JUL-2023	State	-
6903157	8008228	SID	State Site Visit for enforcement purposes	31-MAR-2023	State	POIR for C-17-111-031-ETT Items 3.) and 6.) - N/C for submitting and implementing p/s for the control of DBPs
6903157	8008237	SID	State Site Visit for enforcement purposes	31-MAR-2023	State	POIR for C-17-111-031-ETT Items 3.) and 6.) - N/C for submitting and implementing p/s for the control of DBPs
6903157	8008245	SID	State Site Visit for enforcement purposes	31-MAR-2023	State	POIR for C-17-111-031-ETT Items 3.) and 6.) - N/C for submitting and implementing p/s for the control of DBPs
6903157	8008224	SID	State Site Visit for enforcement purposes	31-MAR-2023	State	POIR for C-17-111-031-ETT Items 3.) and 6.) - N/C for submitting and implementing p/s for the control of DBPs
6903157	8008235	SID	State Site Visit for enforcement purposes	31-MAR-2023	State	POIR for C-17-111-031-ETT Items 3.) and 6.) - N/C for submitting and implementing p/s for the control of DBPs
6903157	8008287	SID	State Site Visit for enforcement purposes	31-MAR-2023	State	POIR for C-17-111-031-ETT Items 3.) and 6.) - N/C for submitting and implementing p/s for the control of DBPs
6903157	8008283	SID	State Site Visit for enforcement purposes	31-MAR-2023	State	POIR for C-17-111-031-ETT Items 3.) and 6.) - N/C for submitting and implementing p/s for the control of DBPs
6903157	8008276	SID	State Site Visit for enforcement purposes	31-MAR-2023	State	POIR for C-17-111-031-ETT Items 3.) and 6.) - N/C for submitting and implementing p/s for the control of DBPs
6903157	8008273	SID	State Site Visit for enforcement purposes	31-MAR-2023	State	POIR for C-17-111-031-ETT Items 3.) and 6.) - N/C for submitting and implementing p/s for the control of DBPs
6903157	8008266	SID	State Site Visit for enforcement purposes	31-MAR-2023	State	POIR for C-17-111-031-ETT Items 3.) and 6.) - N/C for submitting and implementing p/s for the control of DBPs
6903157	8008262	SID	State Site Visit for enforcement purposes	31-MAR-2023	State	POIR for C-17-111-031-ETT Items 3.) and 6.) - N/C for submitting and implementing p/s for the control of DBPs
6903157	8008255	SID	State Site Visit for enforcement purposes	31-MAR-2023	State	POIR for C-17-111-031-ETT Items 3.) and 6.) - N/C for submitting and implementing p/s for the control of DBPs
6903157	8008252	SID	State Site Visit for enforcement purposes	31-MAR-2023	State	POIR for C-17-111-031-ETT Items 3.) and 6.) - N/C for submitting and implementing p/s for the control of DBPs
6903157	8008247	SID	State Site Visit for enforcement purposes	31-MAR-2023	State	POIR for C-17-111-031-ETT Items 3.) and 6.) - N/C for submitting and implementing p/s for the control of DBPs
6903149	8008285	SIF	State Public Notification received	31-OCT-2022	State	-
6903077	8008226	SID	State Site Visit for enforcement purposes	25-JAN-2018	State	POIR for C-17-111-031-ETT item 2.) - I/C for DBP monitoring
6903064	8008220	SOX	State Compliance achieved	05-MAY-2017	State	-
6903044	8008219	SIF	State Public Notification received	31-MAY-2012	State	-
6903043	8008007	SOX	State Compliance achieved	31-DEC-2011	State	System has four quarters below TTHM MCL.
6903043	8008218	SOX	State Compliance achieved	31-DEC-2011	State	System has four quarters below TTHM MCL.
6903043	8008217	SOX	State Compliance achieved	31-DEC-2011	State	System has four quarters below TTHM MCL.
6903043	8008216	SOX	State Compliance achieved	31-DEC-2011	State	System has four quarters below TTHM MCL.
6903043	8008215	SOX	State Compliance achieved	31-DEC-2011	State	System has four quarters below TTHM MCL.
6903043	8008214	SOX	State Compliance achieved	31-DEC-2011	State	System has four quarters below TTHM MCL.

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All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
PURCHASE FROM LA1111005 FARMERVILLE WS	18202	Yes	Consecutive Connection	Ground water	Emergency	Active
DEAN WELL	7894	Yes	Well	Ground water	Permanent	Active
TRUXNO WELL	7893	Yes	Well	Ground water	Permanent	Active
OAKLAND WELL	7892	Yes	Well	Ground water	Permanent	Active
MARONEY WELL	7891	Yes	Well	Ground water	Permanent	Active
DISTRIBUTION SYSTEM	9331	No	Distribution System/Zone	-	-	Active
STAGE2 IDSE	17432	No	Distribution System/Zone	-	-	Inactive
STANDPIPE - TRUXNO	20307	No	Storage	-	-	Active
STANDPIPE - DEAN	460	No	Storage	-	-	Active
ELEVATED TANK - OAKLAND	633	No	Storage	-	-	Active
TREATMENT PLANT - DEAN WELL	4322	No	Treatment Plant	-	-	Active
TREATMENT PLANT - TRUXNO WELL	4323	No	Treatment Plant	-	-	Active
TREATMENT PLANT - OAKLAND WELL	4324	No	Treatment Plant	-	-	Active
TREATMENT PLANT - MARONEY WELL	4325	No	Treatment Plant	-	-	Active

1 - 14 of 14

Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
TREATMENT PLANT - DEAN WELL	4322	Gaseous Chlorination, Post	Disinfection
TREATMENT PLANT - TRUXNO WELL	4323	Gaseous Chlorination, Post	Disinfection
TREATMENT PLANT - OAKLAND WELL	4324	Gaseous Chlorination, Post	Disinfection
TREATMENT PLANT - MARONEY WELL	4325	Gaseous Chlorination, Post	Disinfection

1 - 4 of 4

For more information on a Water System:
Ask the operators of your water system, contact your primacy agency or file a Freedom of Information Act (FOIA) request.
Drinking water in general: Find out more about your drinking water web site or call the Safe Drinking Water Hotline (1-800-426-4791). EPA has also prepared a table about various regulated drinking water contaminants.
Tools for accessing EPA drinking water data: Safe Drinking Water Information System (SDWIS) Federal Reporting Services and Drinking Water Performance and Results Report.
Research Data: As well as monitoring the levels of drinking water contaminants for which EPA has set standards, EPA, states, and water systems also carry out studies of contaminants that may need to be regulated in the future. For more information about these contaminants, please see the National Contaminant Occurrence Database.

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