Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	PA7280021
PWS Name	MERCERSBURG MUNI WATER AUTH
PWS Type	Community water system
Owner Type	Local government
Primary Source	Surface water
Primacy Type	State
Is Wholesaler?	No
Population Served	2350
County Served	Franklin

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	2603289	Known	01-NOV-2025	30-NOV-2025	No
RPT	Report Sample Result/Fail Monitor (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	2527819	Returned to Compliance	11-JUL-2025	-	No
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	2524996	Known	01-JUN-2025	30-JUN-2025	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	CARBON, TOTAL	2525593	Known	01-APR-2025	30-JUN-2025	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	CARBON, TOTAL	2517263	Known	01-JAN-2025	31-MAR-2025	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	2428083	Returned to Compliance	11-JUL-2024	-	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	2428082	Returned to Compliance	11-JUL-2024	-	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	2425373	Returned to Compliance	01-JUN-2024	30-JUN-2024	No
MR	Monitoring of Treatment (SWTR-Unfilt/GWR)	Ground Water Rule	Groundwater Rule	2425372	Returned to Compliance	01-JUN-2024	30-JUN-2024	No
MR	Monitoring, Turbidity (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	2414366	Returned to Compliance	01-FEB-2024	29-FEB-2024	No
MR	Monitoring of Treatment (SWTR-Unfilt/GWR)	Ground Water Rule	Groundwater Rule	2414364	Returned to Compliance	01-FEB-2024	29-FEB-2024	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	2414365	Returned to Compliance	01-FEB-2024	29-FEB-2024	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	2414361	Returned to Compliance	01-FEB-2024	29-FEB-2024	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	2339186	Returned to Compliance	12-OCT-2023	-	No
MCL	Maximum Contaminant Level Violation, E. coli (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	2339185	Returned to Compliance	01-SEP-2023	30-SEP-2023	Yes
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	2323237	Returned to Compliance	01-APR-2023	30-APR-2023	No
MR	Monitoring of Treatment (SWTR-Unfilt/GWR)	Ground Water Rule	Groundwater Rule	2323240	Returned to Compliance	01-APR-2023	30-APR-2023	No
MR	Monitoring, Turbidity (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	2323242	Returned to Compliance	01-APR-2023	30-APR-2023	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	2327813	Returned to Compliance	01-APR-2023	30-JUN-2023	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	2323241	Returned to Compliance	01-APR-2023	30-APR-2023	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	2327814	Returned to Compliance	01-APR-2023	30-JUN-2023	No
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	2232144	Returned to Compliance	01-JUN-2022	30-JUN-2022	No
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	2225445	Returned to Compliance	01-MAY-2022	31-MAY-2022	No
MR	Monitoring of Treatment (SWTR-Unfilt/GWR)	Ground Water Rule	Groundwater Rule	2203864	Returned to Compliance	01-NOV-2021	30-NOV-2021	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	2203865	Returned to Compliance	01-NOV-2021	30-NOV-2021	No
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	2121935	Returned to Compliance	01-MAY-2021	31-MAY-2021	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	2120429	Open	11-APR-2021	-	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	2120427	Returned to Compliance	01-APR-2021	30-APR-2021	No
MR	Monitoring of Treatment (SWTR-Unfilt/GWR)	Ground Water Rule	Groundwater Rule	2120426	Returned to Compliance	01-APR-2021	30-APR-2021	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	2117803	Open	11-MAR-2021	-	No
TT	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Surface Water Treatment Rule	2114407	Returned to Compliance	01-FEB-2021	28-FEB-2021	Yes
TT	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Surface Water Treatment Rule	2102442	Returned to Compliance	01-OCT-2020	31-OCT-2020	Yes
TT	Treatment Technique (SWTR and GWR)	Ground Water Rule	Groundwater Rule	2102439	Returned to Compliance	01-OCT-2020	31-OCT-2020	Yes
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	2044048	Returned to Compliance	01-JUL-2020	30-SEP-2020	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	2029362	Returned to Compliance	01-MAY-2020	31-MAY-2020	No
MR	Monitoring of Treatment (SWTR-Unfilt/GWR)	Ground Water Rule	Groundwater Rule	2029361	Returned to Compliance	01-MAY-2020	31-MAY-2020	No
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	2015623	Returned to Compliance	01-FEB-2020	29-FEB-2020	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	CARBON, TOTAL	2023543	Returned to Compliance	01-JAN-2020	31-MAR-2020	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	2022911	Returned to Compliance	01-JAN-2020	31-MAR-2020	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	2022910	Returned to Compliance	01-JAN-2020	31-MAR-2020	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	1939436	Returned to Compliance	13-SEP-2019	-	No
TT	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Surface Water Treatment Rule	1939442	Returned to Compliance	01-SEP-2019	30-SEP-2019	Yes
MR	Monitoring of Treatment (SWTR-Unfilt/GWR)	Ground Water Rule	Groundwater Rule	1935143	Returned to Compliance	01-AUG-2019	31-AUG-2019	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	1935144	Returned to Compliance	01-AUG-2019	31-AUG-2019	No
MR	Monitoring, Turbidity (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	1935145	Returned to Compliance	01-AUG-2019	31-AUG-2019	No
MR	Monitoring, Turbidity (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	1933281	Known	01-JUL-2019	31-JUL-2019	No
MR	Monitoring of Treatment (SWTR-Unfilt/GWR)	Ground Water Rule	Groundwater Rule	1933279	Returned to Compliance	01-JUL-2019	31-JUL-2019	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	1935140	Returned to Compliance	01-JUL-2019	30-SEP-2019	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	1933280	Known	01-JUL-2019	31-JUL-2019	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	1819700	Returned to Compliance	01-MAY-2018	31-MAY-2018	No

1 - 50 of 207

Enforcement Actions

Latest Enforcement ID	Associated To Violation ID	Enforcement Action Type Code	Enforcement Action Description	Enforcement Date	Originator Description	Enforcement Comment
26032897001	2603289	SFJ	State Formal Notice of Violation issued	30-DEC-2025	State	-
26278192009	2527819	SOX	State Compliance achieved	13-NOV-2025	State	-
25255937	2525593	SFJ	State Formal Notice of Violation issued	13-AUG-2025	State	-
25249965	2524996	SIA	State Violation/Reminder Notice	21-JUL-2025	State	-
25172634	2517263	SIA	State Violation/Reminder Notice	05-MAY-2025	State	-
242781383008	2327813	SOX	State Compliance achieved	27-AUG-2024	State	-
242781383008	2327814	SOX	State Compliance achieved	27-AUG-2024	State	-
242808286013	2428082	SOX	State Compliance achieved	27-AUG-2024	State	-
242808286013	2428083	SOX	State Compliance achieved	27-AUG-2024	State	-
242537286011	2425373	SOX	State Compliance achieved	26-JUL-2024	State	-
242537286011	2425372	SOX	State Compliance achieved	26-JUL-2024	State	-
241436186003	2414365	SOX	State Compliance achieved	25-MAR-2024	State	-
241436186003	2414364	SOX	State Compliance achieved	25-MAR-2024	State	-
241436186003	2414361	SOX	State Compliance achieved	25-MAR-2024	State	-
241436186003	2414366	SOX	State Compliance achieved	25-MAR-2024	State	-
243918582027	2339185	SOX	State Compliance achieved	11-JAN-2024	State	-
243918582027	2339186	SOX	State Compliance achieved	11-JAN-2024	State	-
232323779001	2323237	SOX	State Compliance achieved	25-MAY-2023	State	-
232323779001	2323242	SOX	State Compliance achieved	25-MAY-2023	State	-
232323779001	2323241	SOX	State Compliance achieved	25-MAY-2023	State	-
232323779001	2323240	SOX	State Compliance achieved	25-MAY-2023	State	-
223214474006	2232144	SOX	State Compliance achieved	29-AUG-2022	State	-
222193569005	2121935	SOX	State Compliance achieved	03-AUG-2022	State	-
222544574005	2225445	SOX	State Compliance achieved	03-AUG-2022	State	-
220386474003	2203864	SOX	State Compliance achieved	06-JAN-2022	State	-
220386474003	2203865	SOX	State Compliance achieved	06-JAN-2022	State	-
212042668008	2120426	SOX	State Compliance achieved	13-SEP-2021	State	-
212042668008	2120427	SOX	State Compliance achieved	13-SEP-2021	State	-
212042967011	2120429	SIE	State Public Notification requested	07-JUN-2021	State	-
211780366007	2117803	SFJ	State Formal Notice of Violation issued	06-MAY-2021	State	-
211440768005	2114407	SOX	State Compliance achieved	23-APR-2021	State	-
211562362001	2044048	SOX	State Compliance achieved	05-MAR-2021	State	-
211562362001	2015623	SOX	State Compliance achieved	05-MAR-2021	State	-
211562362001	2023543	SOX	State Compliance achieved	05-MAR-2021	State	-
210243968001	2102439	SOX	State Compliance achieved	15-DEC-2020	State	-
210243968001	2102442	SOX	State Compliance achieved	15-DEC-2020	State	-
202936163009	2029362	SOX	State Compliance achieved	28-JUL-2020	State	-
202936163009	2029361	SOX	State Compliance achieved	28-JUL-2020	State	-
202291063004	2022910	SIF	State Public Notification received	30-JUN-2020	State	-
202291063004	2022911	SIF	State Public Notification received	30-JUN-2020	State	-
203327957001	1933279	SOX	State Compliance achieved	06-MAR-2020	State	-
203943657017	1939442	SOX	State Compliance achieved	19-FEB-2020	State	-
203943657017	1939436	SOX	State Compliance achieved	19-FEB-2020	State	-
203514057002	1935144	SOX	State Compliance achieved	23-JAN-2020	State	-
203514057002	1935143	SOX	State Compliance achieved	23-JAN-2020	State	-
203514057002	1935140	SOX	State Compliance achieved	23-JAN-2020	State	-
203514057002	1935145	SOX	State Compliance achieved	23-JAN-2020	State	-
193327955003	1933281	SIE	State Public Notification requested	03-SEP-2019	State	-
193327955003	1933280	SIE	State Public Notification requested	03-SEP-2019	State	-
181969950001	1819700	SOX	State Compliance achieved	07-SEP-2018	State	-

1 - 50 of 190

All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
BUCK RUN RESERVOIR	001	Yes	Intake	Surface water	Permanent	Active
ZIMM WELL	006	Yes	Well	Ground water	Permanent	Active
BUCK RUN WELL	004	Yes	Well	Ground water	Permanent	Active
WELL 3	003	Yes	Well	Ground water	Other	Inactive
WELL 1	002	Yes	Well	Ground water	Other	Inactive
MOUNTAIN WELL	005	Yes	Well	Ground water under the influence of surface water	Other	Inactive
BUCK RUN RES	101	No	Sampling Station	-	-	Active
WELL #1 TREATED	102	No	Sampling Station	-	-	Inactive
WELL #3 TREATED	103	No	Sampling Station	-	-	Inactive
BUCK RUN FILTER PLNT	301	No	Treatment Plant	-	-	Active
BUCK RUN WELL CHLOR	304	No	Treatment Plant	-	-	Active
WELL #1	302	No	Treatment Plant	-	-	Inactive
WELL #3	303	No	Treatment Plant	-	-	Inactive

1 - 13 of 13

Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
BUCK RUN FILTER PLNT	301	Gaseous Chlorination, Pre	Disinfection
BUCK RUN FILTER PLNT	301	Lime - Soda Ash Addition	Particulate removal
BUCK RUN FILTER PLNT	301	Coagulation	Particulate removal
BUCK RUN FILTER PLNT	301	Flocculation	Particulate removal
BUCK RUN FILTER PLNT	301	Sedimentation	Particulate removal
BUCK RUN FILTER PLNT	301	Coagulation	Particulate removal
BUCK RUN FILTER PLNT	301	Filtration, Rapid Sand	Particulate removal
BUCK RUN FILTER PLNT	301	Gaseous Chlorination, Post	Disinfection
BUCK RUN FILTER PLNT	301	pH Adjustment, Post	Corrosion control
BUCK RUN FILTER PLNT	301	Innovative	Other
BUCK RUN WELL CHLOR	304	Gaseous Chlorination, Post	Disinfection
BUCK RUN WELL CHLOR	304	4-Log Treatment of Viruses	Disinfection

1 - 12 of 12

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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