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PWS ID	LA1059004
PWS Name	TOWN OF OLLA WATER SYSTEM
PWS Type	Community water system
Owner Type	Local government
Primary Source	Ground water
Primacy Type	State
Is Wholesaler?	Yes
Population Served	2565
County Served	La Salle 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	6005932	Returned to Compliance	01-OCT-2021	31-DEC-2021	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	6005930	Returned to Compliance	01-APR-2021	30-JUN-2021	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	6005926	Returned to Compliance	01-JAN-2019	31-MAR-2019	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	6005923	Returned to Compliance	01-OCT-2018	31-DEC-2018	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	6005922	Returned to Compliance	01-JUL-2018	30-SEP-2018	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	6005921	Returned to Compliance	01-APR-2018	30-JUN-2018	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	6005919	Returned to Compliance	01-JAN-2018	31-MAR-2018	Yes
MR	Failure Submit IDSE/Subpart V Plan Rpt	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	6005917	Returned to Compliance	31-OCT-2017	-	No
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	6005916	Returned to Compliance	01-OCT-2017	31-DEC-2017	Yes
Other	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	Consumer Confidence Rule	6005914	Returned to Compliance	01-OCT-2017	-	No
MR	Failure Submit IDSE/Subpart V Plan Rpt	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	6005918	Returned to Compliance	31-JUL-2017	-	No
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	6005913	Returned to Compliance	01-JUL-2017	30-SEP-2017	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	6005908	Returned to Compliance	01-APR-2014	30-JUN-2014	Yes
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	6005906	Returned to Compliance	01-OCT-2013	31-DEC-2013	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	6005907	Returned to Compliance	01-OCT-2013	31-DEC-2013	No
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	6005905	Returned to Compliance	01-APR-2013	30-APR-2013	Yes
MR	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	Lead and Copper Rule	105	Returned to Compliance	01-JAN-2005	-	No
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	6005903	Known	01-APR-2003	30-APR-2003	Yes
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	6002298	Known	01-SEP-1998	30-SEP-1998	Yes
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	6005792	Known	01-JUL-1992	31-JUL-1992	Yes

1 - 20 of 20

Enforcement Actions

Latest Enforcement ID	Associated To Violation ID	Enforcement Action Type Code	Enforcement Action Description	Enforcement Date	Originator Description	Enforcement Comment
5700775	6005913	SOX	State Compliance achieved	12-DEC-2022	State	-
5700775	6005908	SOX	State Compliance achieved	12-DEC-2022	State	-
5700775	6005932	SOX	State Compliance achieved	12-DEC-2022	State	-
5700775	6005930	SOX	State Compliance achieved	12-DEC-2022	State	-
5700775	6005916	SOX	State Compliance achieved	12-DEC-2022	State	-
5700775	6005923	SOX	State Compliance achieved	12-DEC-2022	State	-
5700775	6005922	SOX	State Compliance achieved	12-DEC-2022	State	-
5700775	6005921	SOX	State Compliance achieved	12-DEC-2022	State	-
5700775	6005919	SOX	State Compliance achieved	12-DEC-2022	State	-
5700775	6005926	SOX	State Compliance achieved	12-DEC-2022	State	-
5700734	6005918	SID	State Site Visit for enforcement purposes	16-AUG-2018	State	POIR for C-18-059-032-ETT Item 1.) and 2.) - I/C for submitting OEL reports and CCR certification
5700734	6005914	SID	State Site Visit for enforcement purposes	16-AUG-2018	State	POIR for C-18-059-032-ETT Item 1.) and 2.) - I/C for submitting OEL reports and CCR certification
5700734	6005917	SID	State Site Visit for enforcement purposes	16-AUG-2018	State	POIR for C-18-059-032-ETT Item 1.) and 2.) - I/C for submitting OEL reports and CCR certification
5700727	6005906	SOX	State Compliance achieved	19-JUN-2018	State	review of violations prior to AO that can be returned to compliance
5700727	6005907	SOX	State Compliance achieved	19-JUN-2018	State	review of violations prior to AO that can be returned to compliance
5700710	6005905	SOX	State Compliance achieved	26-APR-2013	State	-
5700704	105	SOX	State Compliance achieved	23-AUG-2005	State	-
5700703	6005903	SIF	State Public Notification received	04-JUN-2003	State	-
22398	6002298	SIF	State Public Notification received	26-OCT-1998	State	-
57392	6005792	SIF	State Public Notification received	24-AUG-1992	State	-

1 - 20 of 20

All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
WELL 4 MCCARTNEY MIDFIELD	6487	Yes	Well	Ground water	Emergency	Active
Z WELL 1 LONDON ST AND OLIVE	6485	Yes	Well	Ground water	Permanent	Inactive
Z WELL 2 LONDON AND BLAKE	6484	Yes	Well	Ground water	Permanent	Inactive
Z WELL 5 ROSEFIELD RD	6483	Yes	Well	Ground water	Permanent	Inactive
WELL 3 MCCARTNEY AT CREEK	6486	Yes	Well	Ground water	Permanent	Active
WELL 6 ELM AND PLUM	13385	Yes	Well	Ground water	Permanent	Active
DISTRIBUTION SYSTEM	8893	No	Distribution System/Zone	-	-	Active
PUMPS @ TREATMENT PLANT	20324	No	Pump Facility	-	-	Active
ELEVATED	292	No	Storage	-	-	Active
GROUND AT PLUM ST	878	No	Storage	-	-	Active
Z-GROUND AT LONDON AND OLIVE	1115	No	Storage	-	-	Inactive
NEW DISINFECTION FOR WELLS 3,4,6	20338	No	Treatment Plant	-	-	Active
Z-DISINFECTION WELL 6	13386	No	Treatment Plant	-	-	Inactive
Z-ORTHOPHOSPHATE WELL 6	14308	No	Treatment Plant	-	-	Inactive
Z DISINFECTION WELL 5	3506	No	Treatment Plant	-	-	Inactive
Z-DISINFECTION WELLS 3 AND 4	3508	No	Treatment Plant	-	-	Inactive
Z-DISINFECTION WELLS 1 AND 2	3509	No	Treatment Plant	-	-	Inactive

1 - 17 of 17

Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
Z-DISINFECTION WELL 6	13386	Gaseous Chlorination, Pre	Disinfection
Z-ORTHOPHOSPHATE WELL 6	14308	Inhibitor, Orthophosphate	Corrosion control
NEW DISINFECTION FOR WELLS 3,4,6	20338	Gaseous Chlorination, Pre	Disinfection
Z-DISINFECTION WELLS 3 AND 4	3508	Gaseous Chlorination, Pre	Disinfection
Z-DISINFECTION WELLS 1 AND 2	3509	Gaseous Chlorination, Pre	Disinfection

1 - 5 of 5

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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