Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	PA1150108
PWS Name	KENNETT SQUARE MUN WATER WORKS
PWS Type	Community water system
Owner Type	Local government
Primary Source	Surface water purchased
Primacy Type	State
Is Wholesaler?	No
Population Served	6328
County Served	Chester

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
MR	Monitoring of Treatment (SWTR-Unfilt/GWR)	Ground Water Rule	Groundwater Rule	2608763	Returned to Compliance	01-JAN-2026	31-JAN-2026	No
MR	Monitoring of Treatment (SWTR-Unfilt/GWR)	Ground Water Rule	Groundwater Rule	2603629	Returned to Compliance	01-DEC-2025	31-DEC-2025	No
MR	Monitoring of Treatment (SWTR-Unfilt/GWR)	Ground Water Rule	Groundwater Rule	2600049	Returned to Compliance	01-OCT-2025	31-OCT-2025	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	2529495	Known	01-JUL-2025	30-SEP-2025	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	2529494	Known	01-JUL-2025	30-SEP-2025	No
MR	Monitoring of Treatment (SWTR-Unfilt/GWR)	Ground Water Rule	Groundwater Rule	2519193	Returned to Compliance	01-MAY-2025	31-MAY-2025	No
MR	Monitoring of Treatment (SWTR-Unfilt/GWR)	Ground Water Rule	Groundwater Rule	2517322	Returned to Compliance	01-APR-2025	30-APR-2025	No
MR	Monitoring of Treatment (SWTR-Unfilt/GWR)	Ground Water Rule	Groundwater Rule	2514531	Returned to Compliance	01-MAR-2025	31-MAR-2025	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	2509977	Returned to Compliance	01-JAN-2025	31-JAN-2025	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	2509973	Returned to Compliance	01-JAN-2025	31-JAN-2025	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	2426142	Returned to Compliance	01-JUL-2024	-	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	2410156	Returned to Compliance	11-JAN-2024	-	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	2410159	Returned to Compliance	11-JAN-2024	-	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	2410163	Returned to Compliance	11-JAN-2024	-	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	2410193	Returned to Compliance	11-JAN-2024	-	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	2410199	Returned to Compliance	11-JAN-2024	-	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	2410177	Returned to Compliance	11-JAN-2024	-	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	2410162	Returned to Compliance	11-JAN-2024	-	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	2410170	Returned to Compliance	11-JAN-2024	-	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	2410165	Returned to Compliance	11-JAN-2024	-	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	2410171	Returned to Compliance	11-JAN-2024	-	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	2410173	Returned to Compliance	11-JAN-2024	-	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	2410172	Returned to Compliance	11-JAN-2024	-	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	2410169	Returned to Compliance	11-JAN-2024	-	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	2410197	Returned to Compliance	11-JAN-2024	-	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	2410200	Returned to Compliance	11-JAN-2024	-	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	2410192	Returned to Compliance	11-JAN-2024	-	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	2410185	Returned to Compliance	11-JAN-2024	-	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	2410183	Returned to Compliance	11-JAN-2024	-	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	2410161	Returned to Compliance	11-JAN-2024	-	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	2410188	Returned to Compliance	11-JAN-2024	-	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	2410187	Returned to Compliance	11-JAN-2024	-	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	2410191	Returned to Compliance	11-JAN-2024	-	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	2410174	Returned to Compliance	11-JAN-2024	-	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	2410166	Returned to Compliance	11-JAN-2024	-	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	2410196	Returned to Compliance	11-JAN-2024	-	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	2410164	Returned to Compliance	11-JAN-2024	-	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	2410176	Returned to Compliance	11-JAN-2024	-	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	2410184	Returned to Compliance	11-JAN-2024	-	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	2410160	Returned to Compliance	11-JAN-2024	-	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	2410194	Returned to Compliance	11-JAN-2024	-	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	2410181	Returned to Compliance	11-JAN-2024	-	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	2410190	Returned to Compliance	11-JAN-2024	-	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	2410189	Returned to Compliance	11-JAN-2024	-	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	2410186	Returned to Compliance	11-JAN-2024	-	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	2410178	Returned to Compliance	11-JAN-2024	-	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	2410167	Returned to Compliance	11-JAN-2024	-	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	2410195	Returned to Compliance	11-JAN-2024	-	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	2410182	Returned to Compliance	11-JAN-2024	-	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	2410168	Returned to Compliance	11-JAN-2024	-	No

1 - 50 of 265

Enforcement Actions

Latest Enforcement ID	Associated To Violation ID	Enforcement Action Type Code	Enforcement Action Description	Enforcement Date	Originator Description	Enforcement Comment
26036298002	2603629	SOX	State Compliance achieved	13-MAR-2026	State	-
26087638003	2608763	SOX	State Compliance achieved	25-FEB-2026	State	-
26000498001	2600049	SOX	State Compliance achieved	13-JAN-2026	State	-
262949424	2529494	SFJ	State Formal Notice of Violation issued	12-NOV-2025	State	-
262949424	2529495	SFJ	State Formal Notice of Violation issued	12-NOV-2025	State	-
26145313016	2514531	SOX	State Compliance achieved	08-OCT-2025	State	-
26145313016	2517322	SOX	State Compliance achieved	08-OCT-2025	State	-
251782781048	2317829	SOX	State Compliance achieved	21-AUG-2025	State	-
251782781048	2317827	SOX	State Compliance achieved	21-AUG-2025	State	-
251782781048	2317831	SOX	State Compliance achieved	21-AUG-2025	State	-
251782781048	2317832	SOX	State Compliance achieved	21-AUG-2025	State	-
251782781048	2324687	SOX	State Compliance achieved	21-AUG-2025	State	-
251782781048	2324688	SOX	State Compliance achieved	21-AUG-2025	State	-
251782781048	2331272	SOX	State Compliance achieved	21-AUG-2025	State	-
250393887002	2403938	SOX	State Compliance achieved	21-AUG-2025	State	-
250393887002	2403939	SOX	State Compliance achieved	21-AUG-2025	State	-
250393887002	2403941	SOX	State Compliance achieved	21-AUG-2025	State	-
250393887002	2403942	SOX	State Compliance achieved	21-AUG-2025	State	-
250393887002	2403943	SOX	State Compliance achieved	21-AUG-2025	State	-
250393887002	2403944	SOX	State Compliance achieved	21-AUG-2025	State	-
250393887002	2403945	SOX	State Compliance achieved	21-AUG-2025	State	-
250393887002	2403946	SOX	State Compliance achieved	21-AUG-2025	State	-
25099732003	2509973	SOX	State Compliance achieved	21-AUG-2025	State	-
25099732003	2509977	SOX	State Compliance achieved	21-AUG-2025	State	-
25099732003	2519193	SOX	State Compliance achieved	21-AUG-2025	State	-
251782781048	2317828	SOX	State Compliance achieved	21-AUG-2025	State	-
251782781048	2317830	SOX	State Compliance achieved	21-AUG-2025	State	-
252614286064	2426142	SOX	State Compliance achieved	18-OCT-2024	State	-
240375381025	2303755	SIF	State Public Notification received	12-JUN-2024	State	-
240375381025	2303756	SIF	State Public Notification received	12-JUN-2024	State	-
240375381025	2303757	SIF	State Public Notification received	12-JUN-2024	State	-
240375381025	2303758	SIF	State Public Notification received	12-JUN-2024	State	-
240375381025	2303759	SIF	State Public Notification received	12-JUN-2024	State	-
240375381025	2303760	SIF	State Public Notification received	12-JUN-2024	State	-
240375381025	2303761	SIF	State Public Notification received	12-JUN-2024	State	-
240375381025	2303762	SIF	State Public Notification received	12-JUN-2024	State	-
240375381025	2303763	SIF	State Public Notification received	12-JUN-2024	State	-
240375381025	2303764	SIF	State Public Notification received	12-JUN-2024	State	-
240375381025	2303765	SIF	State Public Notification received	12-JUN-2024	State	-
240375381025	2303766	SIF	State Public Notification received	12-JUN-2024	State	-
240375381025	2303767	SIF	State Public Notification received	12-JUN-2024	State	-
240375381025	2303768	SIF	State Public Notification received	12-JUN-2024	State	-
240375381025	2303769	SIF	State Public Notification received	12-JUN-2024	State	-
240375381025	2303770	SIF	State Public Notification received	12-JUN-2024	State	-
240375381025	2303771	SIF	State Public Notification received	12-JUN-2024	State	-
240375381025	2303772	SIF	State Public Notification received	12-JUN-2024	State	-
240375381025	2303773	SIF	State Public Notification received	12-JUN-2024	State	-
240375381025	2303774	SIF	State Public Notification received	12-JUN-2024	State	-
240375381025	2303753	SIF	State Public Notification received	12-JUN-2024	State	-
240375381025	2303754	SIF	State Public Notification received	12-JUN-2024	State	-

1 - 50 of 243

All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
CHESTER WATER	001	Yes	Consecutive Connection	Surface water	Permanent	Active
WELL #1	002	Yes	Well	Ground water	Permanent	Active
YEATMAN WELL	003	Yes	Well	Ground water	Interim	Active
CHESTER WATER	100	No	Sampling Station	-	-	Active
N WALNUT RD YARD HYD	101	No	Sampling Station	-	-	Active
YEATMAN WELL	102	No	Sampling Station	-	-	Active
WELL HOUSE	300	No	Treatment Plant	-	-	Active
S VIEW AVE	301	No	Treatment Plant	-	-	Active
YEATMAN WELL	302	No	Treatment Plant	-	-	Active

1 - 9 of 9

Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
WELL HOUSE	300	Hypochlorination, Post	Disinfection
WELL HOUSE	300	Inhibitor, Orthophosphate	Corrosion control
WELL HOUSE	300	4-Log Treatment of Viruses	Disinfection
S VIEW AVE	301	Inhibitor, Orthophosphate	Corrosion control
YEATMAN WELL	302	Ion Exchange	Softening (hardness removal)
YEATMAN WELL	302	Inhibitor, Orthophosphate	Corrosion control
YEATMAN WELL	302	Hypochlorination, Post	Disinfection

1 - 7 of 7

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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