Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	PA7360058
PWS Name	CITY OF LANCASTER
PWS Type	Community water system
Owner Type	Local government
Primary Source	Surface water
Primacy Type	State
Is Wholesaler?	No
Population Served	120000
County Served	Lancaster

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-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	2520211	Returned to Compliance	01-MAY-2025	31-MAY-2025	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	2433193	Returned to Compliance	01-SEP-2024	30-SEP-2024	No
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	2425427	Returned to Compliance	01-APR-2024	30-JUN-2024	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	1711270	Returned to Compliance	01-OCT-2016	31-DEC-2016	Yes
MR	Monitoring, Turbidity (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	1341283	Returned to Compliance	01-AUG-2013	31-AUG-2013	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2,4-Trichlorobenzene	1211810	Returned to Compliance	01-JAN-2011	31-DEC-2011	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Styrene	1211829	Returned to Compliance	01-JAN-2011	31-DEC-2011	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Styrene	1211809	Returned to Compliance	01-JAN-2011	31-DEC-2011	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Ethylbenzene	1211828	Returned to Compliance	01-JAN-2011	31-DEC-2011	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Ethylbenzene	1211808	Returned to Compliance	01-JAN-2011	31-DEC-2011	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Toluene	1211827	Returned to Compliance	01-JAN-2011	31-DEC-2011	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Toluene	1211807	Returned to Compliance	01-JAN-2011	31-DEC-2011	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Benzene	1211806	Returned to Compliance	01-JAN-2011	31-DEC-2011	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Benzene	1211826	Returned to Compliance	01-JAN-2011	31-DEC-2011	No
MR	Monitoring, Regular	Volatile Organic Chemicals	CHLOROBENZENE	1211825	Returned to Compliance	01-JAN-2011	31-DEC-2011	No
MR	Monitoring, Regular	Volatile Organic Chemicals	CHLOROBENZENE	1211805	Returned to Compliance	01-JAN-2011	31-DEC-2011	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Tetrachloroethylene	1211804	Returned to Compliance	01-JAN-2011	31-DEC-2011	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Tetrachloroethylene	1211824	Returned to Compliance	01-JAN-2011	31-DEC-2011	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,2-Trichloroethane	1211823	Returned to Compliance	01-JAN-2011	31-DEC-2011	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,2-Trichloroethane	1211803	Returned to Compliance	01-JAN-2011	31-DEC-2011	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Trichloroethylene	1211802	Returned to Compliance	01-JAN-2011	31-DEC-2011	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Trichloroethylene	1211822	Returned to Compliance	01-JAN-2011	31-DEC-2011	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloropropane	1211821	Returned to Compliance	01-JAN-2011	31-DEC-2011	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloropropane	1211801	Returned to Compliance	01-JAN-2011	31-DEC-2011	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Carbon tetrachloride	1211820	Returned to Compliance	01-JAN-2011	31-DEC-2011	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Carbon tetrachloride	1211800	Returned to Compliance	01-JAN-2011	31-DEC-2011	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,1-Trichloroethane	1211799	Returned to Compliance	01-JAN-2011	31-DEC-2011	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,1-Trichloroethane	1211819	Returned to Compliance	01-JAN-2011	31-DEC-2011	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloroethane	1211818	Returned to Compliance	01-JAN-2011	31-DEC-2011	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloroethane	1211798	Returned to Compliance	01-JAN-2011	31-DEC-2011	No
MR	Monitoring, Regular	Volatile Organic Chemicals	trans-1,2-Dichloroethylene	1211817	Returned to Compliance	01-JAN-2011	31-DEC-2011	No
MR	Monitoring, Regular	Volatile Organic Chemicals	trans-1,2-Dichloroethylene	1211797	Returned to Compliance	01-JAN-2011	31-DEC-2011	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1-Dichloroethylene	1211816	Returned to Compliance	01-JAN-2011	31-DEC-2011	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1-Dichloroethylene	1211796	Returned to Compliance	01-JAN-2011	31-DEC-2011	No
MR	Monitoring, Regular	Volatile Organic Chemicals	p-Dichlorobenzene	1211815	Returned to Compliance	01-JAN-2011	31-DEC-2011	No
MR	Monitoring, Regular	Volatile Organic Chemicals	p-Dichlorobenzene	1211795	Returned to Compliance	01-JAN-2011	31-DEC-2011	No
MR	Monitoring, Regular	Volatile Organic Chemicals	o-Dichlorobenzene	1211814	Returned to Compliance	01-JAN-2011	31-DEC-2011	No
MR	Monitoring, Regular	Volatile Organic Chemicals	o-Dichlorobenzene	1211794	Returned to Compliance	01-JAN-2011	31-DEC-2011	No
MR	Monitoring, Regular	Volatile Organic Chemicals	DICHLOROMETHANE	1211793	Returned to Compliance	01-JAN-2011	31-DEC-2011	No
MR	Monitoring, Regular	Volatile Organic Chemicals	DICHLOROMETHANE	1211813	Returned to Compliance	01-JAN-2011	31-DEC-2011	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Xylenes, Total	1211812	Returned to Compliance	01-JAN-2011	31-DEC-2011	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Xylenes, Total	1211792	Returned to Compliance	01-JAN-2011	31-DEC-2011	No
MR	Monitoring, Regular	Volatile Organic Chemicals	cis-1,2-Dichloroethylene	1211811	Returned to Compliance	01-JAN-2011	31-DEC-2011	No
MR	Monitoring, Regular	Volatile Organic Chemicals	cis-1,2-Dichloroethylene	1211791	Returned to Compliance	01-JAN-2011	31-DEC-2011	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2,4-Trichlorobenzene	1211790	Returned to Compliance	01-JAN-2011	31-DEC-2011	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	1101306	Returned to Compliance	01-OCT-2010	31-OCT-2010	No
MR	Monitoring, Regular	Nitrate Rule	Nitrite	1108879	Returned to Compliance	01-OCT-2010	31-DEC-2010	No
MR	Monitoring, Regular	Nitrate Rule	Nitrate	1108878	Returned to Compliance	01-OCT-2010	31-DEC-2010	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	1019459	Returned to Compliance	01-JUL-2010	31-JUL-2010	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	01V0001	Returned to Compliance	01-JUL-2001	12-JUL-2001	No

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Enforcement Actions

Latest Enforcement ID	Associated To Violation ID	Enforcement Action Type Code	Enforcement Action Description	Enforcement Date	Originator Description	Enforcement Comment
25202112003	2520211	SOX	State Compliance achieved	26-JUN-2025	State	-
253319386005	2433193	SOX	State Compliance achieved	06-NOV-2024	State	-
242542786003	2425427	SOX	State Compliance achieved	24-JUL-2024	State	-
171127044014	1711270	SOX	State Compliance achieved	27-JUN-2017	State	-
144128319001	1341283	SOX	State Compliance achieved	30-OCT-2013	State	-
121179014001	1211804	SOX	State Compliance achieved	21-FEB-2012	State	-
121179014001	1211829	SOX	State Compliance achieved	21-FEB-2012	State	-
121179014001	1211828	SOX	State Compliance achieved	21-FEB-2012	State	-
121179014001	1211827	SOX	State Compliance achieved	21-FEB-2012	State	-
121179014001	1211826	SOX	State Compliance achieved	21-FEB-2012	State	-
121179014001	1211825	SOX	State Compliance achieved	21-FEB-2012	State	-
121179014001	1211824	SOX	State Compliance achieved	21-FEB-2012	State	-
121179014001	1211823	SOX	State Compliance achieved	21-FEB-2012	State	-
121179014001	1211822	SOX	State Compliance achieved	21-FEB-2012	State	-
121179014001	1211821	SOX	State Compliance achieved	21-FEB-2012	State	-
121179014001	1211820	SOX	State Compliance achieved	21-FEB-2012	State	-
121179014001	1211819	SOX	State Compliance achieved	21-FEB-2012	State	-
121179014001	1211818	SOX	State Compliance achieved	21-FEB-2012	State	-
121179014001	1211817	SOX	State Compliance achieved	21-FEB-2012	State	-
121179014001	1211816	SOX	State Compliance achieved	21-FEB-2012	State	-
121179014001	1211815	SOX	State Compliance achieved	21-FEB-2012	State	-
121179014001	1211790	SOX	State Compliance achieved	21-FEB-2012	State	-
121179014001	1211791	SOX	State Compliance achieved	21-FEB-2012	State	-
121179014001	1211792	SOX	State Compliance achieved	21-FEB-2012	State	-
121179014001	1211793	SOX	State Compliance achieved	21-FEB-2012	State	-
121179014001	1211794	SOX	State Compliance achieved	21-FEB-2012	State	-
121179014001	1211795	SOX	State Compliance achieved	21-FEB-2012	State	-
121179014001	1211796	SOX	State Compliance achieved	21-FEB-2012	State	-
121179014001	1211797	SOX	State Compliance achieved	21-FEB-2012	State	-
121179014001	1211798	SOX	State Compliance achieved	21-FEB-2012	State	-
121179014001	1211799	SOX	State Compliance achieved	21-FEB-2012	State	-
121179014001	1211800	SOX	State Compliance achieved	21-FEB-2012	State	-
121179014001	1211801	SOX	State Compliance achieved	21-FEB-2012	State	-
121179014001	1211802	SOX	State Compliance achieved	21-FEB-2012	State	-
121179014001	1211803	SOX	State Compliance achieved	21-FEB-2012	State	-
121179014001	1211805	SOX	State Compliance achieved	21-FEB-2012	State	-
121179014001	1211806	SOX	State Compliance achieved	21-FEB-2012	State	-
121179014001	1211807	SOX	State Compliance achieved	21-FEB-2012	State	-
121179014001	1211808	SOX	State Compliance achieved	21-FEB-2012	State	-
121179014001	1211809	SOX	State Compliance achieved	21-FEB-2012	State	-
121179014001	1211810	SOX	State Compliance achieved	21-FEB-2012	State	-
121179014001	1211811	SOX	State Compliance achieved	21-FEB-2012	State	-
121179014001	1211812	SOX	State Compliance achieved	21-FEB-2012	State	-
121179014001	1211813	SOX	State Compliance achieved	21-FEB-2012	State	-
121179014001	1211814	SOX	State Compliance achieved	21-FEB-2012	State	-
11088787002	1108879	SOX	State Compliance achieved	17-FEB-2011	State	-
11088787002	1108878	SOX	State Compliance achieved	17-FEB-2011	State	-
11013067001	1101306	SOX	State Compliance achieved	23-NOV-2010	State	-
10194592013	1019459	SOX	State Compliance achieved	26-AUG-2010	State	-
0100085	01V0001	EOX	Federal Compliance achieved	12-JUL-2001	ODSWeb	-

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All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
SUSQUEHANNA RIVER	001	Yes	Intake	Surface water	Permanent	Active
01221CONESTOGA CREEK	002	Yes	Intake	Surface water	Permanent	Active
SUSQUEHANNA	101	No	Sampling Station	-	-	Active
CONESTOGA	102	No	Sampling Station	-	-	Active
SUSQUEHANNA	300	No	Treatment Plant	-	-	Active
CONESTOGA	301	No	Treatment Plant	-	-	Active

1 - 6 of 6

Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
SUSQUEHANNA	300	Hypochlorination, Post	Disinfection
SUSQUEHANNA	300	Hypochlorination, Pre	Disinfection
SUSQUEHANNA	300	Activated Carbon, Powdered	Taste / odor control
SUSQUEHANNA	300	Fluoridation	Other
SUSQUEHANNA	300	Coagulation	Particulate removal
SUSQUEHANNA	300	Innovative	Particulate removal
SUSQUEHANNA	300	Flocculation	Particulate removal
SUSQUEHANNA	300	Inhibitor, Polyphosphate	Corrosion control
SUSQUEHANNA	300	Lime - Soda Ash Addition	Particulate removal
CONESTOGA	301	Hypochlorination, Post	Disinfection
CONESTOGA	301	Hypochlorination, Pre	Disinfection
CONESTOGA	301	Permanganate	Taste / odor control
CONESTOGA	301	Activated Carbon, Powdered	Taste / odor control
CONESTOGA	301	Fluoridation	Other
CONESTOGA	301	Coagulation	Particulate removal
CONESTOGA	301	Innovative	Particulate removal
CONESTOGA	301	Flocculation	Particulate removal
CONESTOGA	301	Inhibitor, Polyphosphate	Corrosion control
CONESTOGA	301	Innovative	Particulate removal

1 - 19 of 19

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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