Safe Drinking Water Information System (SDWIS) Federal Reporting Services

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PWS ID	LA1073031
PWS Name	CITY OF MONROE WATER SYSTEM
PWS Type	Community water system
Owner Type	Local government
Primary Source	Surface water
Primacy Type	State
Is Wholesaler?	Yes
Population Served	57000
County Served	Ouachita 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
TT	Treatment Technique (SWTR and GWR)	Long Term 2 Enhanced Surface Water Treatment Rule	Long Term 2 Enhanced Surface Water Treatment Rule	8006078	Known	01-JAN-2026	31-JAN-2026	Yes
TT	Monthly Turbidity Exceed (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	8006076	Returned to Compliance	01-JAN-2026	31-JAN-2026	Yes
TT	Single Turbidity Exceed (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	8006077	Known	01-JAN-2026	31-JAN-2026	Yes
TT	LSL Inventory	Lead and Copper Rule Revisions	LEAD AND COPPER RULE REVISIONS	8006072	Returned to Compliance	17-OCT-2024	-	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	8006047	Returned to Compliance	01-JUL-2019	30-SEP-2019	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	8006046	Returned to Compliance	01-APR-2019	30-JUN-2019	Yes
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	8006031	Returned to Compliance	01-AUG-2014	31-AUG-2014	Yes
TT	Treatment Technique Precursor Removal	Stage 1 Disinfectants and Disinfection Byproducts Rule	CARBON, TOTAL	8006014	Known	01-JAN-2011	31-MAR-2011	Yes
MR	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	Lead and Copper Rule	8006012	Returned to Compliance	01-OCT-2010	-	No
TT	Treatment Technique Precursor Removal	Stage 1 Disinfectants and Disinfection Byproducts Rule	CARBON, TOTAL	8006013	Returned to Compliance	01-OCT-2010	31-DEC-2010	Yes
TT	Treatment Technique Precursor Removal	Stage 1 Disinfectants and Disinfection Byproducts Rule	CARBON, TOTAL	8006011	Returned to Compliance	01-JUL-2010	30-SEP-2010	Yes
TT	Treatment Technique Precursor Removal	Stage 1 Disinfectants and Disinfection Byproducts Rule	CARBON, TOTAL	8006010	Returned to Compliance	01-APR-2010	30-JUN-2010	Yes
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	CARBON, TOTAL	8006009	Returned to Compliance	01-APR-2010	30-JUN-2010	No
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	8006008	Returned to Compliance	01-NOV-2008	30-NOV-2008	Yes
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	8006007	Returned to Compliance	01-JUL-2008	31-JUL-2008	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	8006006	Returned to Compliance	01-JUL-2005	30-SEP-2005	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	8005805	Returned to Compliance	01-APR-2005	30-JUN-2005	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	8005605	Returned to Compliance	01-JAN-2005	31-MAR-2005	Yes
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	8005296	Known	01-SEP-1996	30-SEP-1996	Yes
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	8000295	Known	01-OCT-1994	31-OCT-1994	Yes
MCL	Maximum Contaminant Level Violation, Acute (TCR)	Total Coliform Rule	Coliform (TCR)	8003692	Known	01-AUG-1992	31-AUG-1992	Yes

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Enforcement Actions

Latest Enforcement ID	Associated To Violation ID	Enforcement Action Type Code	Enforcement Action Description	Enforcement Date	Originator Description	Enforcement Comment
5202079	8006076	SOX	State Compliance achieved	23-MAR-2026	State	-
5202078	8006077	SIF	State Public Notification received	23-MAR-2026	State	-
5202077	8006078	SIE	State Public Notification requested	03-MAR-2026	State	-
5202072	8006072	SOX	State Compliance achieved	31-JAN-2025	State	-
5202068	8006047	SOX	State Compliance achieved	31-DEC-2019	State	-
5202068	8006046	SOX	State Compliance achieved	31-DEC-2019	State	-
5202045	8006031	SOX	State Compliance achieved	26-FEB-2015	State	-
5202032	8006012	SOX	State Compliance achieved	27-JUL-2011	State	-
5202031	8006014	SIF	State Public Notification received	13-JUL-2011	State	-
5202027	8006007	SOX	State Compliance achieved	05-MAY-2011	State	RETURNED TO COMPLIANCE PER FEDERAL DEFINITION
5202027	8006008	SOX	State Compliance achieved	05-MAY-2011	State	RETURNED TO COMPLIANCE PER FEDERAL DEFINITION
5202027	8006013	SOX	State Compliance achieved	05-MAY-2011	State	RETURNED TO COMPLIANCE PER FEDERAL DEFINITION
5202027	8006011	SOX	State Compliance achieved	05-MAY-2011	State	RETURNED TO COMPLIANCE PER FEDERAL DEFINITION
5202027	8006010	SOX	State Compliance achieved	05-MAY-2011	State	RETURNED TO COMPLIANCE PER FEDERAL DEFINITION
5202027	8006009	SOX	State Compliance achieved	05-MAY-2011	State	RETURNED TO COMPLIANCE PER FEDERAL DEFINITION
5202006	8005805	SOX	State Compliance achieved	23-MAR-2006	State	-
5202006	8005605	SOX	State Compliance achieved	23-MAR-2006	State	-
5202006	8006006	SOX	State Compliance achieved	23-MAR-2006	State	-
5200396	8005296	SIF	State Public Notification received	30-OCT-1996	State	-
2495	8000295	SIF	State Public Notification received	12-DEC-1994	State	-
36392	8003692	SIF	State Public Notification received	17-AUG-1992	State	-

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All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
OUACHITA RIVER SURFACE WATER INTAKE	13826	Yes	Intake	Surface water	Permanent	Active
BAYOU DESIARD SURFACE WATER INTAKE	8359	Yes	Intake	Surface water	Permanent	Active
DISTRIBUTION SYSTEM	9019	No	Distribution System/Zone	-	-	Active
Stage2 IDSE	17273	No	Distribution System/Zone	-	-	Inactive
LAKE BARTHOLOMEW PUMP STATION	18664	No	Pump Facility	-	-	Active
CHAUVIN BOOSTER PUMPS	21383	No	Pump Facility	-	-	Active
TRANSFER PUMPS @ PLANT	21968	No	Pump Facility	-	-	Active
HIGH SERVICE PUMPS @ PLANT	21969	No	Pump Facility	-	-	Active
SELMAN FIELD BOOSTER PUMPS	21970	No	Pump Facility	-	-	Active
RUFFIN DRIVE BOOSTER PUMPS	21972	No	Pump Facility	-	-	Active
THOMAS STREET BOOSTER PUMPS	21974	No	Pump Facility	-	-	Active
OLD GROUND TANK @ PLANT	1127	No	Storage	-	-	Active
SELMAN FIELD GROUND TANK	1202	No	Storage	-	-	Active
RUFFIN DRIVE GROUND TANK	1230	No	Storage	-	-	Active
THOMAS STREET GROUND TANK	17615	No	Storage	-	-	Active
CHAUVIN GROUND TANK	21382	No	Storage	-	-	Active
GRAMMONT ELEVATED TANK	331	No	Storage	-	-	Active
POWELL ELEVATED TANK	576	No	Storage	-	-	Active
NEW GROUND TANK @ PLANT	904	No	Storage	-	-	Active
OLD ELEVATED AT WTP (INACTIVE)	669	No	Storage	-	-	Inactive
CHAUVIN BOOSTER DS TREATMENT PLANT	21944	No	Treatment Plant	-	-	Active
SELMAN BOOSTER DS TREATMENT PLANT	21965	No	Treatment Plant	-	-	Active
RUFFIN BOOSTER DS TREATMENT PLANT	21966	No	Treatment Plant	-	-	Active
THOMAS BOOSTER DS TREATMENT PLANT	21967	No	Treatment Plant	-	-	Active
MONROE WATER TREATMENT PLANT	3741	No	Treatment Plant	-	-	Active
TP FOR OUACHITA RIVER INTAKE (INACTIVE)	3742	No	Treatment Plant	-	-	Inactive

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Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
CHAUVIN BOOSTER DS TREATMENT PLANT	21944	Chloramines	Disinfection
SELMAN BOOSTER DS TREATMENT PLANT	21965	Chloramines	Disinfection
RUFFIN BOOSTER DS TREATMENT PLANT	21966	Chloramines	Disinfection
THOMAS BOOSTER DS TREATMENT PLANT	21967	Chloramines	Disinfection
MONROE WATER TREATMENT PLANT	3741	Chloramines	Disinfection
MONROE WATER TREATMENT PLANT	3741	Inhibitor, Orthophosphate	Corrosion control
MONROE WATER TREATMENT PLANT	3741	Filtration, Slow Sand	Particulate removal
MONROE WATER TREATMENT PLANT	3741	Flocculation	Particulate removal
MONROE WATER TREATMENT PLANT	3741	Sedimentation	Particulate removal
MONROE WATER TREATMENT PLANT	3741	Aeration, Cascade	Organics removal
MONROE WATER TREATMENT PLANT	3741	Activated Carbon, Powdered	Taste / odor control
MONROE WATER TREATMENT PLANT	3741	Rapid Mix	Particulate removal
MONROE WATER TREATMENT PLANT	3741	pH Adjustment, Pre	Particulate removal
MONROE WATER TREATMENT PLANT	3741	Permanganate	Organics removal
MONROE WATER TREATMENT PLANT	3741	Permanganate	Iron removal
MONROE WATER TREATMENT PLANT	3741	Gaseous Chlorination, Post	Disinfection
TP FOR OUACHITA RIVER INTAKE (INACTIVE)	3742	Chloramines	Disinfection

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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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