Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	FL2341181
PWS Name	MAYO WTP
PWS Type	Community water system
Owner Type	Local government
Primary Source	Ground water
Primacy Type	State
Is Wholesaler?	No
Population Served	1055
County Served	Lafayette

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
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	20260000668	Known	01-NOV-2025	30-NOV-2025	No
MR	Failure to Conduct Assessment Monitoring	Ground Water Rule	E. COLI	20260000650	Known	01-NOV-2025	30-NOV-2025	No
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	20250023533	Returned to Compliance	01-MAY-2025	31-MAY-2025	No
MR	Failure to Conduct Assessment Monitoring	Ground Water Rule	E. COLI	20250023534	Returned to Compliance	01-MAY-2025	31-MAY-2025	No
Other	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	Consumer Confidence Rule	20240020220	Open	01-JUL-2024	-	No
Other	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	Consumer Confidence Rule	20230013942	Returned to Compliance	01-JUL-2023	-	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	20220015072	Returned to Compliance	01-JUL-2022	31-JUL-2022	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	20220015073	Returned to Compliance	01-JUL-2022	31-JUL-2022	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	20220016006	Returned to Compliance	01-JAN-2022	31-DEC-2022	No
MR	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	Lead and Copper Rule	20170009095	Returned to Compliance	01-JAN-2015	-	No
MR	Monitoring, Routine Minor (TCR)	Total Coliform Rule	Coliform (TCR)	20090000186	Known	01-OCT-2008	31-OCT-2008	No
MR	Monitoring, Repeat Major (TCR)	Total Coliform Rule	Coliform (TCR)	20080008079	Known	01-SEP-2008	30-SEP-2008	No
MR	Monitoring, Regular	Nitrate Rule	Nitrate	20050002685	Returned to Compliance	01-JAN-2004	31-DEC-2004	No
MR	Monitoring, Repeat Major (TCR)	Total Coliform Rule	Coliform (TCR)	0210172	Known	01-MAY-2002	31-MAY-2002	No
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	0210171	Known	01-MAY-2002	31-MAY-2002	Yes
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	0100638	Known	01-NOV-2000	30-NOV-2000	No
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	98V0002	Known	01-JUN-1998	30-JUN-1998	Yes
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	98V0001	Known	01-OCT-1997	31-OCT-1997	Yes
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	97V0001	Known	01-SEP-1997	30-SEP-1997	Yes
MR	Monitoring, Routine Minor (TCR)	Total Coliform Rule	Coliform (TCR)	95V0001	Known	01-MAY-1995	31-MAY-1995	No
MR	Monitoring, Repeat Major (TCR)	Total Coliform Rule	Coliform (TCR)	95V0002	Known	01-APR-1995	30-APR-1995	No
MR	Monitoring, Repeat Major (TCR)	Total Coliform Rule	Coliform (TCR)	94V0001	Known	01-MAY-1994	31-MAY-1994	No
MR	Monitoring, Routine Minor (TCR)	Total Coliform Rule	Coliform (TCR)	91V0001	Known	01-APR-1991	30-APR-1991	No
MR	Monitoring, Regular	Inorganic Chemicals	Chromium	8970005	Known	01-SEP-1986	31-AUG-1989	No
MR	Monitoring, Regular	Inorganic Chemicals	Selenium	8970010	Known	01-SEP-1986	31-AUG-1989	No
MR	Monitoring, Regular	Nitrate Rule	Nitrate	8970009	Known	01-SEP-1986	31-AUG-1989	No
MR	Monitoring, Regular	Inorganic Chemicals	Mercury	8970008	Known	01-SEP-1986	31-AUG-1989	No
MR	Monitoring, Regular	Inorganic Chemicals	Fluoride	8970006	Known	01-SEP-1986	31-AUG-1989	No
MR	Monitoring, Regular	Inorganic Chemicals	Barium	8970003	Known	01-SEP-1986	31-AUG-1989	No
MR	Monitoring, Regular	Arsenic Rule	Arsenic	8970002	Known	01-SEP-1986	31-AUG-1989	No
MR	Monitoring, Regular	Inorganic Chemicals	Cadmium	8970004	Known	01-SEP-1986	31-AUG-1989	No

1 - 31 of 31

Enforcement Actions

Latest Enforcement ID	Associated To Violation ID	Enforcement Action Type Code	Enforcement Action Description	Enforcement Date	Originator Description	Enforcement Comment
685768	20250023533	SOX	State Compliance achieved	30-JUN-2025	State	-
685768	20250023534	SOX	State Compliance achieved	30-JUN-2025	State	-
632137	20230013942	SOX	State Compliance achieved	10-JUL-2023	State	-
632136	20220016006	SOX	State Compliance achieved	26-SEP-2022	State	-
632136	20220015072	SOX	State Compliance achieved	26-SEP-2022	State	-
632135	20220015073	SOX	State Compliance achieved	25-AUG-2022	State	-
492386	20170009095	SOX	State Compliance achieved	01-AUG-2017	State	-
175868	20050002685	SOX	State Compliance achieved	07-APR-2005	State	-
98E0001	98V0001	SIF	State Public Notification received	30-OCT-1997	State	-
95E0002	95V0001	SIE	State Public Notification requested	30-JUN-1995	State	-
89E0006	8970008	SO7	State Unresolved	09-JAN-1989	State	-
89E0006	8970006	SO7	State Unresolved	09-JAN-1989	State	-
89E0006	8970005	SO7	State Unresolved	09-JAN-1989	State	-
89E0006	8970009	SO7	State Unresolved	09-JAN-1989	State	-
89E0006	8970003	SO7	State Unresolved	09-JAN-1989	State	-
89E0006	8970002	SO7	State Unresolved	09-JAN-1989	State	-
89E0006	8970010	SO7	State Unresolved	09-JAN-1989	State	-
89E0006	8970004	SO7	State Unresolved	09-JAN-1989	State	-

1 - 18 of 18

All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
MAYO WELL #3	4359750908	Yes	Well	Ground water	Emergency	Active
WELL #3	3319830280	Yes	Well	Ground water	-	Active
WELL #2	3319730279	Yes	Well	Ground water	Permanent	Active
WELL #2	331972994	Yes	Well	Ground water	Permanent	Active
WELL #1 (HOUSED)	31142994	Yes	Well	Ground water	Permanent	Active
MAYO WELL #4	4359751406	Yes	Well	Ground water	Other	Active
MAYO WATER DEPT.	27402341181	No	Treatment Plant	-	-	Active

1 - 7 of 7

Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
MAYO WATER DEPT.	27402341181	Hypochlorination, Post	Disinfection
MAYO WATER DEPT.	27402341181	Lime - Soda Ash Addition	Corrosion control
MAYO WATER DEPT.	27402341181	Sequestration	Iron removal

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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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