Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	LA1097001
PWS Name	TOWN OF GRAND COTEAU WATER SYSTEM
PWS Type	Community water system
Owner Type	Local government
Primary Source	Ground water
Primacy Type	State
Is Wholesaler?	No
Population Served	1650
County Served	St. Landry 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	Failure To Address Deficiency	Ground Water Rule	Groundwater Rule	4003768	Open	03-MAR-2025	-	Yes
MR	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	Lead and Copper Rule	4003763	Returned to Compliance	01-JAN-2025	-	No
RPT	LSL Reporting	Lead and Copper Rule Revisions	LEAD AND COPPER RULE REVISIONS	4003766	Open	17-OCT-2024	-	No
TT	LSL Inventory	Lead and Copper Rule Revisions	LEAD AND COPPER RULE REVISIONS	4003767	Open	17-OCT-2024	-	Yes
MR	Lead Consumer Notice	Lead and Copper Rule	Lead and Copper Rule	4003764	Returned to Compliance	04-SEP-2024	-	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	4003758	Returned to Compliance	01-JUL-2023	-	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	4003755	Returned to Compliance	17-AUG-2022	-	No
TT	Failure To Address Deficiency	Ground Water Rule	Groundwater Rule	4003752	Open	12-JUL-2022	-	Yes
TT	Failure To Address Deficiency	Ground Water Rule	Groundwater Rule	4003748	Open	12-JUL-2022	-	Yes
TT	Failure To Address Deficiency	Ground Water Rule	Groundwater Rule	4003747	Open	12-JUL-2022	-	Yes
TT	Failure To Address Deficiency	Ground Water Rule	Groundwater Rule	4003751	Open	12-JUL-2022	-	Yes
TT	Failure To Address Deficiency	Ground Water Rule	Groundwater Rule	4003750	Open	12-JUL-2022	-	Yes
TT	Failure To Address Deficiency	Ground Water Rule	Groundwater Rule	4003749	Open	12-JUL-2022	-	Yes
TT	Failure To Address Deficiency	Ground Water Rule	Groundwater Rule	4003745	Open	12-JUL-2022	-	Yes
TT	Failure To Address Deficiency	Ground Water Rule	Groundwater Rule	4003746	Returned to Compliance	12-JUL-2022	-	Yes
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	4003743	Returned to Compliance	01-JUL-2021	-	No
MR	Lead Consumer Notice	Lead and Copper Rule	Lead and Copper Rule	4003741	Returned to Compliance	17-APR-2021	-	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	4003738	Open	24-JUL-2020	-	No
TT	Failure To Address Deficiency	Ground Water Rule	Groundwater Rule	4003736	Returned to Compliance	15-JUN-2020	-	Yes
TT	Failure To Address Deficiency	Ground Water Rule	Groundwater Rule	4003737	Open	15-JUN-2020	-	Yes
TT	Failure To Address Deficiency	Ground Water Rule	Groundwater Rule	4003732	Returned to Compliance	31-DEC-2018	-	Yes
TT	Failure To Address Deficiency	Ground Water Rule	Groundwater Rule	4003731	Returned to Compliance	31-DEC-2018	-	Yes
MR	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	Lead and Copper Rule	4003728	Returned to Compliance	01-OCT-2018	-	No
Other	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	Consumer Confidence Rule	4003721	Returned to Compliance	01-OCT-2017	-	No
Other	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	Consumer Confidence Rule	4003719	Returned to Compliance	01-OCT-2016	-	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	4003718	Returned to Compliance	01-JUL-2016	-	No
MR	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	Lead and Copper Rule	4003717	Returned to Compliance	01-JUL-2015	-	No
Other	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	Consumer Confidence Rule	4003716	Returned to Compliance	01-OCT-2014	-	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	4003715	Returned to Compliance	01-JUL-2014	-	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	4003712	Returned to Compliance	16-JAN-2013	-	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	4003711	Returned to Compliance	01-DEC-2012	31-DEC-2012	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	4003710	Returned to Compliance	15-OCT-2012	-	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	4003708	Returned to Compliance	01-SEP-2012	30-SEP-2012	No
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	4003706	Returned to Compliance	01-AUG-2012	31-AUG-2012	Yes
TT	Failure To Address Deficiency	Ground Water Rule	Groundwater Rule	4003701	Returned to Compliance	19-DEC-2011	-	Yes
MR	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	Lead and Copper Rule	4003697	Returned to Compliance	01-JUL-2009	-	No
MR	Monitoring, Routine Minor (TCR)	Total Coliform Rule	Coliform (TCR)	4003696	Known	01-JUL-2009	31-JUL-2009	No
MR	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	Lead and Copper Rule	4003695	Returned to Compliance	01-JAN-2008	-	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	107	Returned to Compliance	01-JUL-2006	-	No
MR	Initial Tap Sampling for Pb and Cu	Lead and Copper Rule	Lead and Copper Rule	104	Returned to Compliance	01-JAN-2004	-	No
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	4002200	Known	01-AUG-2000	31-AUG-2000	Yes
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	1V01	Returned to Compliance	01-JUL-2000	18-APR-2000	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	1V00	Returned to Compliance	19-OCT-1999	22-JAN-2001	No
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	4000999	Known	01-DEC-1998	31-DEC-1998	Yes
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	4000699	Known	01-NOV-1998	30-NOV-1998	Yes
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	4000896	Known	01-NOV-1995	30-NOV-1995	Yes
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	4003694	Known	01-MAY-1994	31-MAY-1994	Yes

1 - 47 of 47

Enforcement Actions

Latest Enforcement ID	Associated To Violation ID	Enforcement Action Type Code	Enforcement Action Description	Enforcement Date	Originator Description	Enforcement Comment
3600652	4003763	SOX	State Compliance achieved	06-MAY-2025	State	-
3600650	4003768	SIF	State Public Notification received	24-APR-2025	State	-
3600654	4003746	SID	State Site Visit for enforcement purposes	16-APR-2025	State	AO No. C-24-097-011-ETT - I/C with ORAIs 6.) and 10..) - slw.
3600637	4003750	SID	State Site Visit for enforcement purposes	06-FEB-2025	State	AO No. C-24-097-011-ETT - ORAI 6.) O/C and I/C with ORAI 9.) - slw.
3600636	4003764	SOX	State Compliance achieved	04-FEB-2025	State	-
3600629	4003738	SID	State Site Visit for enforcement purposes	06-JAN-2025	State	AO No. C-24-097-011-ETT - I/C with ORAIs 1.) - 5.) - slw.
3600629	4003745	SID	State Site Visit for enforcement purposes	06-JAN-2025	State	AO No. C-24-097-011-ETT - I/C with ORAIs 1.) - 5.) - slw.
3600629	4003747	SID	State Site Visit for enforcement purposes	06-JAN-2025	State	AO No. C-24-097-011-ETT - I/C with ORAIs 1.) - 5.) - slw.
3600629	4003749	SID	State Site Visit for enforcement purposes	06-JAN-2025	State	AO No. C-24-097-011-ETT - I/C with ORAIs 1.) - 5.) - slw.
3600629	4003755	SID	State Site Visit for enforcement purposes	06-JAN-2025	State	AO No. C-24-097-011-ETT - I/C with ORAIs 1.) - 5.) - slw.
3600629	4003737	SID	State Site Visit for enforcement purposes	06-JAN-2025	State	AO No. C-24-097-011-ETT - I/C with ORAIs 1.) - 5.) - slw.
3600631	4003751	SIF	State Public Notification received	20-DEC-2024	State	-
3600631	4003752	SIF	State Public Notification received	20-DEC-2024	State	-
3600631	4003748	SIF	State Public Notification received	20-DEC-2024	State	-
3600625	4003736	SFL	State Administrative/Compliance Order without penalty issued	21-NOV-2024	State	AO No. C-24-097-011-ETT - Issued for PNs for GWR; Inspect/repair fence around EL002; Install screen on well vent on Well #3; Install screen on well vent on Well #4; Adjust prelube for d/c for Well #3; implement cccp; LDH Capacity Development; Inspect and repair fence, inspect clean/repair outer casing Well #3; and submit documentation for cccp and customer records - slw.
3600621	4003758	SOX	State Compliance achieved	01-MAR-2024	State	-
3600612	4003743	SOX	State Compliance achieved	24-NOV-2021	State	-
3600609	4003741	SOX	State Compliance achieved	21-MAY-2021	State	-
3600598	4003728	SOX	State Compliance achieved	22-JUL-2019	State	-
3600596	4003732	SOX	State Compliance achieved	24-APR-2019	State	-
3600595	4003731	SOX	State Compliance achieved	24-APR-2019	State	-
3600586	4003721	SOX	State Compliance achieved	31-JAN-2018	State	-
3600583	4003719	SOX	State Compliance achieved	08-MAY-2017	State	-
3600584	4003718	SOX	State Compliance achieved	04-MAY-2017	State	-
3600580	4003717	SOX	State Compliance achieved	10-DEC-2015	State	-
3600578	4003697	SIF	State Public Notification received	24-AUG-2015	State	-
3600579	4003695	SIF	State Public Notification received	24-AUG-2015	State	-
3600574	4003706	SOX	State Compliance achieved	02-MAR-2015	State	AO RELEASE FOR AO C-12-097-006-ETT.
3600574	4003701	SOX	State Compliance achieved	02-MAR-2015	State	AO RELEASE FOR AO C-12-097-006-ETT.
3600574	4003708	SOX	State Compliance achieved	02-MAR-2015	State	AO RELEASE FOR AO C-12-097-006-ETT.
3600574	4003712	SOX	State Compliance achieved	02-MAR-2015	State	AO RELEASE FOR AO C-12-097-006-ETT.
3600574	4003711	SOX	State Compliance achieved	02-MAR-2015	State	AO RELEASE FOR AO C-12-097-006-ETT.
3600574	4003710	SOX	State Compliance achieved	02-MAR-2015	State	AO RELEASE FOR AO C-12-097-006-ETT.
3600571	4003716	SOX	State Compliance achieved	23-DEC-2014	State	-
3600570	4003715	SOX	State Compliance achieved	17-DEC-2014	State	-
3600566	4003696	SID	State Site Visit for enforcement purposes	03-MAY-2013	State	POI FOR AO C-12-097-006-ETT. NON-COMPLIANCE WITH ITEM 10. (LIST OF HIGH HAZARD CUSTOMERS)
3600549	104	SOX	State Compliance achieved	19-JUN-2008	State	-
3600507	107	SOX	State Compliance achieved	22-DEC-2006	State	2005 CCR return to compliance.
1E04	1V00	EOX	Federal Compliance achieved	22-JAN-2001	ODSWeb	-
22200	4002200	SIE	State Public Notification requested	29-AUG-2000	State	-
2E04	1V01	EOX	Federal Compliance achieved	18-APR-2000	ODSWeb	-
9399	4000999	SIF	State Public Notification received	19-JAN-1999	State	-
6299	4000699	SIE	State Public Notification requested	03-DEC-1998	State	-
8396	4000896	SIF	State Public Notification received	21-DEC-1995	State	-
36394	4003694	SIF	State Public Notification received	04-JUN-1994	State	-

1 - 45 of 45

All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
MUTUAL AID WITH 1097015 SUNSET	20123	Yes	Consecutive Connection	Ground water	Emergency	Active
WELL #2- BELLIMIN RD WELL	7242	Yes	Well	Ground water	Permanent	Inactive
WELL #3 - NORTHWEST WELL	7240	Yes	Well	Ground water	Permanent	Active
WELL #4 - SOUTHEAST WELL	20882	Yes	Well	Ground water	Permanent	Active
WELL #1 (ABANDONED)	7241	Yes	Well	Ground water	Other	Inactive
DISTRIBUTION SYSTEM	9145	No	Distribution System/Zone	-	-	Active
ELEVATED TOWER #2	600	No	Storage	-	-	Active
ELEVATED OLD	389	No	Storage	-	-	Inactive
TREATMENT PLANT #4 - WELL #4	20883	No	Treatment Plant	-	-	Active
TREATMENT PLANT #2 - WELL #3	4044	No	Treatment Plant	-	-	Active
WELL #2 TREATMENT	4045	No	Treatment Plant	-	-	Inactive

1 - 11 of 11

Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
TREATMENT PLANT #4 - WELL #4	20883	Gaseous Chlorination, Pre	Disinfection
TREATMENT PLANT #4 - WELL #4	20883	Inhibitor, Orthophosphate	Corrosion control
TREATMENT PLANT #2 - WELL #3	4044	Gaseous Chlorination, Post	Disinfection
TREATMENT PLANT #2 - WELL #3	4044	Inhibitor, Orthophosphate	Corrosion control
WELL #2 TREATMENT	4045	Inhibitor, Orthophosphate	Corrosion control
WELL #2 TREATMENT	4045	Gaseous Chlorination, Post	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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