Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	PA7500019
PWS Name	DUNCANNON MUNI WATER
PWS Type	Community water system
Owner Type	Local government
Primary Source	Ground water
Primacy Type	State
Is Wholesaler?	No
Population Served	2000
County Served	Perry

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	2520301	Returned to Compliance	01-MAY-2025	31-MAY-2025	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Endrin	2331122	Returned to Compliance	01-JAN-2023	31-DEC-2023	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Endrin	2331140	Returned to Compliance	01-JAN-2023	31-DEC-2023	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Chlordane	2331151	Returned to Compliance	01-JAN-2023	31-DEC-2023	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Pentachlorophenol	2331139	Returned to Compliance	01-JAN-2023	31-DEC-2023	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	HEXACHLOROBENZENE	2331131	Returned to Compliance	01-JAN-2023	31-DEC-2023	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	HEXACHLOROBENZENE	2331149	Returned to Compliance	01-JAN-2023	31-DEC-2023	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	2,4,5-TP	2331138	Returned to Compliance	01-JAN-2023	31-DEC-2023	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	2,4-D	2331137	Returned to Compliance	01-JAN-2023	31-DEC-2023	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Total Polychlorinated Biphenyls (PCB)	2331150	Returned to Compliance	01-JAN-2023	31-DEC-2023	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Total Polychlorinated Biphenyls (PCB)	2331132	Returned to Compliance	01-JAN-2023	31-DEC-2023	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Heptachlor epoxide	2331148	Returned to Compliance	01-JAN-2023	31-DEC-2023	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Heptachlor epoxide	2331130	Returned to Compliance	01-JAN-2023	31-DEC-2023	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Heptachlor	2331147	Returned to Compliance	01-JAN-2023	31-DEC-2023	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Heptachlor	2331129	Returned to Compliance	01-JAN-2023	31-DEC-2023	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	LASSO	2331146	Returned to Compliance	01-JAN-2023	31-DEC-2023	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	LASSO	2331128	Returned to Compliance	01-JAN-2023	31-DEC-2023	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Hexachlorocyclopentadiene	2331145	Returned to Compliance	01-JAN-2023	31-DEC-2023	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Hexachlorocyclopentadiene	2331127	Returned to Compliance	01-JAN-2023	31-DEC-2023	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Dinoseb	2331136	Returned to Compliance	01-JAN-2023	31-DEC-2023	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Picloram	2331135	Returned to Compliance	01-JAN-2023	31-DEC-2023	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Diquat	2331126	Returned to Compliance	01-JAN-2023	31-DEC-2023	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Diquat	2331144	Returned to Compliance	01-JAN-2023	31-DEC-2023	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Dalapon	2331134	Returned to Compliance	01-JAN-2023	31-DEC-2023	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Toxaphene	2331143	Returned to Compliance	01-JAN-2023	31-DEC-2023	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Toxaphene	2331125	Returned to Compliance	01-JAN-2023	31-DEC-2023	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Methoxychlor	2331124	Returned to Compliance	01-JAN-2023	31-DEC-2023	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Methoxychlor	2331142	Returned to Compliance	01-JAN-2023	31-DEC-2023	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	BHC-GAMMA	2331141	Returned to Compliance	01-JAN-2023	31-DEC-2023	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	BHC-GAMMA	2331123	Returned to Compliance	01-JAN-2023	31-DEC-2023	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Chlordane	2331133	Returned to Compliance	01-JAN-2023	31-DEC-2023	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	2263501	Returned to Compliance	01-JUL-2022	30-SEP-2022	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	2263500	Returned to Compliance	01-JUL-2022	30-SEP-2022	No
MR	Monitoring, Regular	Arsenic Rule	Arsenic	2263502	Returned to Compliance	01-JUL-2022	30-SEP-2022	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	2221872	Returned to Compliance	04-MAY-2022	-	No
TT	Failure To Address Deficiency	Ground Water Rule	Groundwater Rule	2222162	Returned to Compliance	28-APR-2022	-	Yes
MR	Monitoring, Regular	Nitrate Rule	Nitrate	2312361	Returned to Compliance	01-JAN-2022	31-DEC-2022	No
MR	Monitoring, Regular	Nitrate Rule	Nitrate	2312363	Returned to Compliance	01-JAN-2022	31-DEC-2022	No
MR	Monitoring, Regular	Nitrate Rule	Nitrite	2312362	Returned to Compliance	01-JAN-2022	31-DEC-2022	No
MR	Monitoring, Regular	Nitrate Rule	Nitrite	2312364	Returned to Compliance	01-JAN-2022	31-DEC-2022	No
MR	Monitoring, Regular	Nitrate Rule	Nitrite	2312338	Returned to Compliance	01-JAN-2022	31-DEC-2022	No
MCL	Maximum Contaminant Level Violation, Average	Arsenic Rule	Arsenic	2221871	Returned to Compliance	01-JAN-2022	31-MAR-2022	Yes
MR	Monitoring, Regular	Nitrate Rule	Nitrate	2312337	Returned to Compliance	01-JAN-2022	31-DEC-2022	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	2203931	Returned to Compliance	13-NOV-2021	-	No
TT	Treatment Technique (SWTR and GWR)	Ground Water Rule	Groundwater Rule	2203930	Returned to Compliance	01-NOV-2021	30-NOV-2021	Yes
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	2202315	Returned to Compliance	13-OCT-2021	-	No
TT	Treatment Technique (SWTR and GWR)	Ground Water Rule	Groundwater Rule	2202314	Returned to Compliance	01-OCT-2021	31-OCT-2021	Yes
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Combined Uranium	2211670	Returned to Compliance	01-OCT-2021	31-DEC-2021	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Di(2-ethylhexyl) phthalate	2117959	Returned to Compliance	01-JAN-2021	31-MAR-2021	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Di(2-ethylhexyl) adipate	2117958	Returned to Compliance	01-JAN-2021	31-MAR-2021	No

1 - 50 of 348

Enforcement Actions

Latest Enforcement ID	Associated To Violation ID	Enforcement Action Type Code	Enforcement Action Description	Enforcement Date	Originator Description	Enforcement Comment
261167075001	2222162	SOX	State Compliance achieved	24-MAR-2026	State	-
261167075001	2211670	SOX	State Compliance achieved	24-MAR-2026	State	-
25203012001	2520301	SOX	State Compliance achieved	28-JUL-2025	State	-
250860951001	1808610	SIF	State Public Notification received	14-MAY-2025	State	-
250860951001	1808609	SIF	State Public Notification received	14-MAY-2025	State	-
251236180025	2331122	SIA	State Violation/Reminder Notice	08-MAY-2025	State	-
251236180025	2331123	SIA	State Violation/Reminder Notice	08-MAY-2025	State	-
251236180025	2331124	SIA	State Violation/Reminder Notice	08-MAY-2025	State	-
251236180025	2331125	SIA	State Violation/Reminder Notice	08-MAY-2025	State	-
251236180025	2331126	SIA	State Violation/Reminder Notice	08-MAY-2025	State	-
251236180025	2331127	SIA	State Violation/Reminder Notice	08-MAY-2025	State	-
251236180025	2331128	SIA	State Violation/Reminder Notice	08-MAY-2025	State	-
251236180025	2331129	SIA	State Violation/Reminder Notice	08-MAY-2025	State	-
251236180025	2331130	SIA	State Violation/Reminder Notice	08-MAY-2025	State	-
251236180025	2331131	SIA	State Violation/Reminder Notice	08-MAY-2025	State	-
251236180025	2331132	SIA	State Violation/Reminder Notice	08-MAY-2025	State	-
251236180025	2331133	SIA	State Violation/Reminder Notice	08-MAY-2025	State	-
251236180025	2331134	SIA	State Violation/Reminder Notice	08-MAY-2025	State	-
251236180025	2331135	SIA	State Violation/Reminder Notice	08-MAY-2025	State	-
251236180025	2331136	SIA	State Violation/Reminder Notice	08-MAY-2025	State	-
251236180025	2331137	SIA	State Violation/Reminder Notice	08-MAY-2025	State	-
251236180025	2331138	SIA	State Violation/Reminder Notice	08-MAY-2025	State	-
251236180025	2331139	SIA	State Violation/Reminder Notice	08-MAY-2025	State	-
251236180025	2331140	SIA	State Violation/Reminder Notice	08-MAY-2025	State	-
251236180025	2331141	SIA	State Violation/Reminder Notice	08-MAY-2025	State	-
251236180025	2331142	SIA	State Violation/Reminder Notice	08-MAY-2025	State	-
251236180025	2331143	SIA	State Violation/Reminder Notice	08-MAY-2025	State	-
251236180025	2331144	SIA	State Violation/Reminder Notice	08-MAY-2025	State	-
251236180025	2331145	SIA	State Violation/Reminder Notice	08-MAY-2025	State	-
251236180025	2331146	SIA	State Violation/Reminder Notice	08-MAY-2025	State	-
251236180025	2331147	SIA	State Violation/Reminder Notice	08-MAY-2025	State	-
251236180025	2331148	SIA	State Violation/Reminder Notice	08-MAY-2025	State	-
251236180025	2331149	SIA	State Violation/Reminder Notice	08-MAY-2025	State	-
251236180025	2331150	SIA	State Violation/Reminder Notice	08-MAY-2025	State	-
251236180025	2331151	SIA	State Violation/Reminder Notice	08-MAY-2025	State	-
251236180025	2312364	SIA	State Violation/Reminder Notice	08-MAY-2025	State	-
251236180025	2312363	SIA	State Violation/Reminder Notice	08-MAY-2025	State	-
251236180025	2312361	SIA	State Violation/Reminder Notice	08-MAY-2025	State	-
251236180025	2312362	SIA	State Violation/Reminder Notice	08-MAY-2025	State	-
246350075003	2263500	SOX	State Compliance achieved	22-NOV-2023	State	-
246350075003	2263501	SOX	State Compliance achieved	22-NOV-2023	State	-
246350075003	2263502	SOX	State Compliance achieved	22-NOV-2023	State	-
231233779001	2312338	SOX	State Compliance achieved	31-JAN-2023	State	-
231233779001	2312337	SOX	State Compliance achieved	31-JAN-2023	State	-
222187173005	2221871	SOX	State Compliance achieved	04-MAY-2022	State	-
222187173005	2221872	SOX	State Compliance achieved	04-MAY-2022	State	-
220231475001	2203931	SOX	State Compliance achieved	18-JAN-2022	State	-
220231475001	2202315	SOX	State Compliance achieved	18-JAN-2022	State	-
220231475001	2202314	SOX	State Compliance achieved	18-JAN-2022	State	-
220231475001	2203930	SOX	State Compliance achieved	18-JAN-2022	State	-

1 - 50 of 340

All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
TROUT RUN	005	Yes	Intake	Surface water	Other	Inactive
WELL # 7	008	Yes	Well	Ground water	Permanent	Active
WELL #5	007	Yes	Well	Ground water	Permanent	Active
WELL #4	004	Yes	Well	Ground water	Permanent	Active
WELL #2	002	Yes	Well	Ground water	Permanent	Active
WELL #1	001	Yes	Well	Ground water	Permanent	Active
WELL #3	003	Yes	Well	Ground water	Other	Inactive
WELL 1 EP	102	No	Sampling Station	-	-	Active
WELL 2 EP	103	No	Sampling Station	-	-	Active
WELL 4 EP	104	No	Sampling Station	-	-	Active
COMBINED WELL 5 & 7	105	No	Sampling Station	-	-	Active
WELL 5 EP	101	No	Sampling Station	-	-	Inactive
WELL 5 4LOG	300	No	Treatment Plant	-	-	Active
WELL 4 4LOG	301	No	Treatment Plant	-	-	Active
WELL 1 4LOG	302	No	Treatment Plant	-	-	Active
WELL 2 4LOG	303	No	Treatment Plant	-	-	Active
WELL 5 AND &7	304	No	Treatment Plant	-	-	Active

1 - 17 of 17

Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
WELL 5 4LOG	300	Hypochlorination, Pre	Disinfection
WELL 5 4LOG	300	pH Adjustment, Post	Corrosion control
WELL 4 4LOG	301	Hypochlorination, Pre	Disinfection
WELL 4 4LOG	301	pH Adjustment, Post	Corrosion control
WELL 4 4LOG	301	Ion Exchange	Inorganics removal
WELL 4 4LOG	301	4-Log Treatment of Viruses	Disinfection
WELL 1 4LOG	302	Hypochlorination, Pre	Disinfection
WELL 1 4LOG	302	pH Adjustment, Post	Corrosion control
WELL 1 4LOG	302	4-Log Treatment of Viruses	Disinfection
WELL 2 4LOG	303	Hypochlorination, Pre	Disinfection
WELL 2 4LOG	303	pH Adjustment, Post	Corrosion control
WELL 2 4LOG	303	4-Log Treatment of Viruses	Disinfection
WELL 5 AND &7	304	Hypochlorination, Pre	Disinfection
WELL 5 AND &7	304	pH Adjustment, Post	Corrosion control
WELL 5 AND &7	304	4-Log Treatment of Viruses	Disinfection

1 - 15 of 15

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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