Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	LA1079030
PWS Name	HAMMOCK WATER SUPPLY
PWS Type	Community water system
Owner Type	Private
Primary Source	Ground water
Primacy Type	State
Is Wholesaler?	No
Population Served	900
County Served	Rapides 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
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	6002798	Open	18-NOV-2025	-	No
TT	Failure To Address Deficiency	Ground Water Rule	Groundwater Rule	6002795	Returned to Compliance	06-OCT-2025	-	Yes
TT	Failure To Address Deficiency	Ground Water Rule	Groundwater Rule	6002797	Open	06-OCT-2025	-	Yes
TT	Failure To Address Deficiency	Ground Water Rule	Groundwater Rule	6002796	Open	06-OCT-2025	-	Yes
TT	Failure To Address Deficiency	Ground Water Rule	Groundwater Rule	6002794	Returned to Compliance	06-OCT-2025	-	Yes
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	6002791	Open	10-NOV-2024	-	No
TT	OCCT/SOWT Study/Recommendation	Lead and Copper Rule	Lead and Copper Rule	6002788	Returned to Compliance	11-JUL-2024	-	Yes
MR	Lead Consumer Notice	Lead and Copper Rule	Lead and Copper Rule	6002787	Returned to Compliance	26-JAN-2024	-	No
TT	OCCT/SOWT Study/Recommendation	Lead and Copper Rule	Lead and Copper Rule	6002785	Returned to Compliance	11-NOV-2023	-	Yes
TT	WQP Entry Point/Tap Treatment Technique Non-Compliance	Lead and Copper Rule	Lead and Copper Rule	6002786	Returned to Compliance	01-JUL-2023	31-DEC-2023	Yes
MR	Lead Consumer Notice	Lead and Copper Rule	Lead and Copper Rule	6002776	Returned to Compliance	30-JAN-2021	-	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	6002777	Returned to Compliance	08-JAN-2021	-	No
TT	Failure To Address Deficiency	Ground Water Rule	Groundwater Rule	6002774	Returned to Compliance	01-DEC-2020	-	Yes
TT	Failure To Address Deficiency	Ground Water Rule	Groundwater Rule	6002773	Returned to Compliance	01-DEC-2020	-	Yes
TT	Failure To Address Deficiency	Ground Water Rule	Groundwater Rule	6002767	Returned to Compliance	17-OCT-2019	-	Yes
TT	Failure To Address Deficiency	Ground Water Rule	Groundwater Rule	6002766	Returned to Compliance	17-OCT-2019	-	Yes
Other	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	Consumer Confidence Rule	6002749	Returned to Compliance	01-OCT-2017	-	No
MCL	Maximum Contaminant Level Violation, Average	Arsenic Rule	Arsenic	6002744	Returned to Compliance	01-OCT-2015	31-DEC-2015	Yes
MCL	Maximum Contaminant Level Violation, Average	Arsenic Rule	Arsenic	6002743	Returned to Compliance	01-JUL-2015	30-SEP-2015	Yes
TT	Failure To Address Deficiency	Ground Water Rule	Groundwater Rule	6002747	Returned to Compliance	01-JUN-2015	-	Yes
MCL	Maximum Contaminant Level Violation, Average	Arsenic Rule	Arsenic	6002740	Returned to Compliance	01-APR-2015	30-JUN-2015	Yes
MCL	Maximum Contaminant Level Violation, Average	Arsenic Rule	Arsenic	6002739	Returned to Compliance	01-JAN-2015	31-MAR-2015	Yes
MR	Water Quality Parameter M/R	Lead and Copper Rule	Lead and Copper Rule	6002758	Returned to Compliance	01-JAN-2015	31-DEC-2017	No
Other	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	Consumer Confidence Rule	6002736	Returned to Compliance	01-OCT-2014	-	No
MCL	Maximum Contaminant Level Violation, Average	Arsenic Rule	Arsenic	6002734	Returned to Compliance	01-OCT-2014	31-DEC-2014	Yes
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	6002735	Returned to Compliance	01-JUL-2014	-	No
MCL	Maximum Contaminant Level Violation, Average	Arsenic Rule	Arsenic	6002733	Returned to Compliance	01-JUL-2014	30-SEP-2014	Yes
MCL	Maximum Contaminant Level Violation, Average	Arsenic Rule	Arsenic	6002732	Returned to Compliance	01-APR-2014	30-JUN-2014	Yes
MCL	Maximum Contaminant Level Violation, Average	Arsenic Rule	Arsenic	6002729	Returned to Compliance	01-JAN-2014	31-MAR-2014	Yes
MCL	Maximum Contaminant Level Violation, Average	Arsenic Rule	Arsenic	6002727	Returned to Compliance	01-OCT-2013	31-DEC-2013	Yes
MCL	Maximum Contaminant Level Violation, Average	Arsenic Rule	Arsenic	6002726	Returned to Compliance	01-JUL-2013	30-SEP-2013	Yes
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	6002725	Returned to Compliance	16-MAY-2013	-	No
MCL	Maximum Contaminant Level Violation, Average	Arsenic Rule	Arsenic	6002724	Returned to Compliance	01-JAN-2013	31-MAR-2013	Yes
MCL	Maximum Contaminant Level Violation, Average	Arsenic Rule	Arsenic	6002722	Returned to Compliance	01-OCT-2012	31-DEC-2012	Yes
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	6002721	Returned to Compliance	23-AUG-2012	-	No
MCL	Maximum Contaminant Level Violation, Average	Arsenic Rule	Arsenic	6002720	Returned to Compliance	01-JUL-2012	30-SEP-2012	Yes
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	6002723	Returned to Compliance	31-MAY-2012	-	No
MCL	Maximum Contaminant Level Violation, Average	Arsenic Rule	Arsenic	6002719	Returned to Compliance	01-APR-2012	30-JUN-2012	Yes
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	6002718	Returned to Compliance	16-MAR-2012	-	No
TT	Failure To Address Deficiency	Ground Water Rule	Groundwater Rule	6002711	Returned to Compliance	05-JAN-2012	-	Yes
MCL	Maximum Contaminant Level Violation, Average	Arsenic Rule	Arsenic	6002716	Returned to Compliance	01-JAN-2012	31-MAR-2012	Yes
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	6002712	Returned to Compliance	10-OCT-2011	-	No
MCL	Maximum Contaminant Level Violation, Average	Arsenic Rule	Arsenic	6002713	Returned to Compliance	01-OCT-2011	31-DEC-2011	Yes
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	6002710	Returned to Compliance	30-JUL-2011	-	No
MCL	Maximum Contaminant Level Violation, Average	Arsenic Rule	Arsenic	6002709	Known	01-JUL-2011	30-SEP-2011	Yes
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	6002715	Returned to Compliance	01-JUL-2011	30-SEP-2011	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	6002714	Returned to Compliance	01-JUL-2011	30-SEP-2011	No
MCL	Maximum Contaminant Level Violation, Average	Arsenic Rule	Arsenic	6002708	Known	01-APR-2011	30-JUN-2011	Yes
MCL	Maximum Contaminant Level Violation, Average	Arsenic Rule	Arsenic	6002704	Known	01-JAN-2011	31-MAR-2011	Yes
MCL	Maximum Contaminant Level Violation, Average	Arsenic Rule	Arsenic	6002706	Known	01-OCT-2010	31-DEC-2010	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
2600564	6002795	SOX	State Compliance achieved	23-OCT-2025	State	-
2600566	6002794	SOX	State Compliance achieved	21-OCT-2025	State	-
2600563	6002797	SIE	State Public Notification requested	13-OCT-2025	State	-
2600563	6002796	SIE	State Public Notification requested	13-OCT-2025	State	-
2600561	6002791	SIA	State Violation/Reminder Notice	28-JAN-2025	State	-
2600560	6002786	SOX	State Compliance achieved	31-DEC-2024	State	-
2600553	6002785	SOX	State Compliance achieved	29-OCT-2024	State	-
2600554	6002788	SOX	State Compliance achieved	29-OCT-2024	State	-
2600548	6002787	SOX	State Compliance achieved	19-JUN-2024	State	-
2600547	6002774	SIF	State Public Notification received	28-NOV-2023	State	-
2600547	6002773	SIF	State Public Notification received	28-NOV-2023	State	-
2600546	6002777	SOX	State Compliance achieved	28-NOV-2023	State	-
2600540	6002747	SOX	State Compliance achieved	15-OCT-2021	State	-
2600531	6002716	SID	State Site Visit for enforcement purposes	30-SEP-2021	State	AO No. C-16-079-034-ARSEN-SAO-I - O/C with ORA Items 1.) and 2.) - slw.
2600531	6002719	SID	State Site Visit for enforcement purposes	30-SEP-2021	State	AO No. C-16-079-034-ARSEN-SAO-I - O/C with ORA Items 1.) and 2.) - slw.
2600531	6002720	SID	State Site Visit for enforcement purposes	30-SEP-2021	State	AO No. C-16-079-034-ARSEN-SAO-I - O/C with ORA Items 1.) and 2.) - slw.
2600531	6002722	SID	State Site Visit for enforcement purposes	30-SEP-2021	State	AO No. C-16-079-034-ARSEN-SAO-I - O/C with ORA Items 1.) and 2.) - slw.
2600531	6002724	SID	State Site Visit for enforcement purposes	30-SEP-2021	State	AO No. C-16-079-034-ARSEN-SAO-I - O/C with ORA Items 1.) and 2.) - slw.
2600531	6002726	SID	State Site Visit for enforcement purposes	30-SEP-2021	State	AO No. C-16-079-034-ARSEN-SAO-I - O/C with ORA Items 1.) and 2.) - slw.
2600531	6002727	SID	State Site Visit for enforcement purposes	30-SEP-2021	State	AO No. C-16-079-034-ARSEN-SAO-I - O/C with ORA Items 1.) and 2.) - slw.
2600531	6002729	SID	State Site Visit for enforcement purposes	30-SEP-2021	State	AO No. C-16-079-034-ARSEN-SAO-I - O/C with ORA Items 1.) and 2.) - slw.
2600531	6002732	SID	State Site Visit for enforcement purposes	30-SEP-2021	State	AO No. C-16-079-034-ARSEN-SAO-I - O/C with ORA Items 1.) and 2.) - slw.
2600531	6002733	SID	State Site Visit for enforcement purposes	30-SEP-2021	State	AO No. C-16-079-034-ARSEN-SAO-I - O/C with ORA Items 1.) and 2.) - slw.
2600531	6002734	SID	State Site Visit for enforcement purposes	30-SEP-2021	State	AO No. C-16-079-034-ARSEN-SAO-I - O/C with ORA Items 1.) and 2.) - slw.
2600531	6002739	SID	State Site Visit for enforcement purposes	30-SEP-2021	State	AO No. C-16-079-034-ARSEN-SAO-I - O/C with ORA Items 1.) and 2.) - slw.
2600531	6002740	SID	State Site Visit for enforcement purposes	30-SEP-2021	State	AO No. C-16-079-034-ARSEN-SAO-I - O/C with ORA Items 1.) and 2.) - slw.
2600531	6002743	SID	State Site Visit for enforcement purposes	30-SEP-2021	State	AO No. C-16-079-034-ARSEN-SAO-I - O/C with ORA Items 1.) and 2.) - slw.
2600531	6002744	SID	State Site Visit for enforcement purposes	30-SEP-2021	State	AO No. C-16-079-034-ARSEN-SAO-I - O/C with ORA Items 1.) and 2.) - slw.
2600534	6002766	SOX	State Compliance achieved	16-AUG-2021	State	-
2600536	6002767	SOX	State Compliance achieved	16-AUG-2021	State	-
2600528	6002776	SOX	State Compliance achieved	29-JUN-2021	State	-
2600520	6002706	SID	State Site Visit for enforcement purposes	14-NOV-2019	State	SAO No. C-16-079-034-ARSEN-SAO-I POIR
2600520	6002713	SID	State Site Visit for enforcement purposes	14-NOV-2019	State	SAO No. C-16-079-034-ARSEN-SAO-I POIR
2600520	6002709	SID	State Site Visit for enforcement purposes	14-NOV-2019	State	SAO No. C-16-079-034-ARSEN-SAO-I POIR
2600520	6002708	SID	State Site Visit for enforcement purposes	14-NOV-2019	State	SAO No. C-16-079-034-ARSEN-SAO-I POIR
2600520	6002707	SID	State Site Visit for enforcement purposes	14-NOV-2019	State	SAO No. C-16-079-034-ARSEN-SAO-I POIR
2600520	6002705	SID	State Site Visit for enforcement purposes	14-NOV-2019	State	SAO No. C-16-079-034-ARSEN-SAO-I POIR
2600520	6002704	SID	State Site Visit for enforcement purposes	14-NOV-2019	State	SAO No. C-16-079-034-ARSEN-SAO-I POIR
2600520	6002703	SID	State Site Visit for enforcement purposes	14-NOV-2019	State	SAO No. C-16-079-034-ARSEN-SAO-I POIR
2600520	6002702	SID	State Site Visit for enforcement purposes	14-NOV-2019	State	SAO No. C-16-079-034-ARSEN-SAO-I POIR
2600520	6002701	SID	State Site Visit for enforcement purposes	14-NOV-2019	State	SAO No. C-16-079-034-ARSEN-SAO-I POIR
2600520	6002700	SID	State Site Visit for enforcement purposes	14-NOV-2019	State	SAO No. C-16-079-034-ARSEN-SAO-I POIR
2600520	6002699	SID	State Site Visit for enforcement purposes	14-NOV-2019	State	SAO No. C-16-079-034-ARSEN-SAO-I POIR
2600520	6002698	SID	State Site Visit for enforcement purposes	14-NOV-2019	State	SAO No. C-16-079-034-ARSEN-SAO-I POIR
2600520	6002697	SID	State Site Visit for enforcement purposes	14-NOV-2019	State	SAO No. C-16-079-034-ARSEN-SAO-I POIR
2600520	6002696	SID	State Site Visit for enforcement purposes	14-NOV-2019	State	SAO No. C-16-079-034-ARSEN-SAO-I POIR
2600520	6002695	SID	State Site Visit for enforcement purposes	14-NOV-2019	State	SAO No. C-16-079-034-ARSEN-SAO-I POIR
2600517	6002758	SOX	State Compliance achieved	21-NOV-2018	State	-
2600515	6002711	SIF	State Public Notification received	09-OCT-2018	State	-
2600514	6002749	SOX	State Compliance achieved	02-OCT-2018	State	2017 CCR submitted.

1 - 50 of 65

All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
WELL 4 MORRISON RD EAST	7071	Yes	Well	Ground water	Emergency	Active
Z-WELL 3 STANDBY WELL WEST WELL	7072	Yes	Well	Ground water	Permanent	Inactive
WELL 6	21917	Yes	Well	Ground water	Permanent	Active
WELL 5	21916	Yes	Well	Ground water	Permanent	Active
Z-WELL 1 HWY 121 - LEANDER - EAST WELL	7074	Yes	Well	Ground water	Emergency	Inactive
WELL 2 MORRISON RD WEST	7073	Yes	Well	Ground water	Emergency	Active
DISTRIBUTION SYSTEM	9093	No	Distribution System/Zone	-	-	Active
GROUND STORAGE AT MORRISON SITE	21918	No	Storage	-	-	Active
Z-GST #2 @ MORRISON RD	1149	No	Storage	-	-	Inactive
Z-HYDROPNEUMATIC ON HWY 121	1826	No	Storage	-	-	Inactive
Z-HYDROPNEUMATIC ON MORRISON RD	2334	No	Storage	-	-	Inactive
Z-GST #1 @ HWY 121	941	No	Storage	-	-	Inactive
NEW TREATMENT PLANT AT MORRISON SITE	21919	No	Treatment Plant	-	-	Active
ZINC ORTHOPHOSPHATE WELL 1 & 3	13958	No	Treatment Plant	-	-	Inactive
Z-AERATION WELL 1 & 3	13959	No	Treatment Plant	-	-	Inactive
Z-ZINC ORTHOPHOSPHATE WELLS 2 & 4	13961	No	Treatment Plant	-	-	Inactive
Z-TREATMENT PLANT @ HWY 121	3943	No	Treatment Plant	-	-	Inactive
Z-TREATMENT PLANT @ MORRISON ROAD	3944	No	Treatment Plant	-	-	Inactive

1 - 18 of 18

Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
ZINC ORTHOPHOSPHATE WELL 1 & 3	13958	Inhibitor, Orthophosphate	Corrosion control
Z-AERATION WELL 1 & 3	13959	Aeration, Packed Tower	Taste / odor control
Z-ZINC ORTHOPHOSPHATE WELLS 2 & 4	13961	Inhibitor, Orthophosphate	Corrosion control
NEW TREATMENT PLANT AT MORRISON SITE	21919	Gaseous Chlorination, Pre	Disinfection
NEW TREATMENT PLANT AT MORRISON SITE	21919	Inhibitor, Polyphosphate	Corrosion control
Z-TREATMENT PLANT @ HWY 121	3943	Aeration, Packed Tower	Taste / odor control
Z-TREATMENT PLANT @ HWY 121	3943	Inhibitor, Orthophosphate	Corrosion control
Z-TREATMENT PLANT @ HWY 121	3943	Hypochlorination, Pre	Disinfection
Z-TREATMENT PLANT @ MORRISON ROAD	3944	Inhibitor, Orthophosphate	Corrosion control
Z-TREATMENT PLANT @ MORRISON ROAD	3944	Hypochlorination, Pre	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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