Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	PA7360123
PWS Name	COLUMBIA WATER CO
PWS Type	Community water system
Owner Type	Private
Primary Source	Surface water
Primacy Type	State
Is Wholesaler?	No
Population Served	25200
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, Turbidity (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	2419221	Returned to Compliance	01-APR-2024	30-APR-2024	No
RPT	Report Sample Result/Fail Monitor (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	2323410	Returned to Compliance	01-APR-2023	-	No
MR	Monitoring of Treatment (SWTR-Unfilt/GWR)	Ground Water Rule	Groundwater Rule	2323264	Returned to Compliance	01-APR-2023	30-APR-2023	No
TT	Treatment Technique Precursor Removal	Stage 1 Disinfectants and Disinfection Byproducts Rule	CARBON, TOTAL	1920145	Returned to Compliance	01-JAN-2019	31-MAR-2019	Yes
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	CARBON, TOTAL	1911060	Returned to Compliance	01-DEC-2018	28-FEB-2019	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	CARBON, TOTAL	1911059	Returned to Compliance	01-NOV-2018	31-JAN-2019	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Total Polychlorinated Biphenyls (PCB)	1737374	Returned to Compliance	01-JUL-2017	30-SEP-2017	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	1723585	Returned to Compliance	01-MAY-2017	31-MAY-2017	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	1723584	Returned to Compliance	01-APR-2017	30-JUN-2017	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Total Polychlorinated Biphenyls (PCB)	1737375	Returned to Compliance	01-JAN-2017	31-DEC-2017	No
TT	Treatment Technique Precursor Removal	Stage 1 Disinfectants and Disinfection Byproducts Rule	CARBON, TOTAL	1634240	Returned to Compliance	01-APR-2016	30-JUN-2016	Yes
TT	Treatment Technique Precursor Removal	Stage 1 Disinfectants and Disinfection Byproducts Rule	CARBON, TOTAL	1620651	Returned to Compliance	01-JAN-2016	31-MAR-2016	Yes
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	CARBON, TOTAL	1611477	Returned to Compliance	01-OCT-2015	31-DEC-2015	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Dinoseb	1439992	Returned to Compliance	01-JAN-2014	31-DEC-2014	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Di(2-ethylhexyl) phthalate	1439991	Returned to Compliance	01-JAN-2014	31-DEC-2014	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Simazine	1439990	Returned to Compliance	01-JAN-2014	31-DEC-2014	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Hexachlorocyclopentadiene	1439993	Returned to Compliance	01-JAN-2014	31-DEC-2014	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Atrazine	1439994	Returned to Compliance	01-JAN-2014	31-DEC-2014	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	LASSO	1439995	Returned to Compliance	01-JAN-2014	31-DEC-2014	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Heptachlor	1439996	Returned to Compliance	01-JAN-2014	31-DEC-2014	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Heptachlor epoxide	1439997	Returned to Compliance	01-JAN-2014	31-DEC-2014	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	2,4-D	1439998	Returned to Compliance	01-JAN-2014	31-DEC-2014	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	2,4,5-TP	1439999	Returned to Compliance	01-JAN-2014	31-DEC-2014	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	HEXACHLOROBENZENE	1440000	Returned to Compliance	01-JAN-2014	31-DEC-2014	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Benzo(a)pyrene	1440001	Returned to Compliance	01-JAN-2014	31-DEC-2014	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Endrin	1439985	Returned to Compliance	01-JAN-2014	31-DEC-2014	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Dalapon	1439988	Returned to Compliance	01-JAN-2014	31-DEC-2014	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Toxaphene	1439987	Returned to Compliance	01-JAN-2014	31-DEC-2014	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Di(2-ethylhexyl) adipate	1439989	Returned to Compliance	01-JAN-2014	31-DEC-2014	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Methoxychlor	1439986	Returned to Compliance	01-JAN-2014	31-DEC-2014	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	1340106	Returned to Compliance	01-JUL-2013	-	No
TT	Single Turbidity Exceed (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	1143089	Returned to Compliance	01-SEP-2011	30-SEP-2011	Yes
TT	Single Turbidity Exceed (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	1135774	Returned to Compliance	01-AUG-2011	31-AUG-2011	Yes
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	0923265	Returned to Compliance	01-SEP-2009	30-SEP-2009	No
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	0822064	Returned to Compliance	01-AUG-2008	31-AUG-2008	Yes
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	CARBON, TOTAL	0724084	Returned to Compliance	01-APR-2007	30-JUN-2007	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	CARBON, TOTAL	0631697	Returned to Compliance	01-JUL-2006	30-SEP-2006	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	CARBON, TOTAL	0619295	Returned to Compliance	01-JAN-2006	31-MAR-2006	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	CARBON, TOTAL	0541368	Returned to Compliance	01-JUL-2005	30-SEP-2005	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	0441929	Returned to Compliance	01-JUL-2004	-	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	00V0001	Returned to Compliance	01-JUL-2000	10-JUL-2000	No
MR	Monitoring, Regular	Nitrate Rule	Nitrate	9415737	Returned to Compliance	01-OCT-1993	31-DEC-1993	No
MR	Monitoring, Regular	Nitrate Rule	Nitrate	9319389	Known	01-JUL-1993	30-SEP-1993	No
MR	Monitoring, Regular	Nitrate Rule	Nitrate	9318929	Known	01-APR-1993	30-JUN-1993	No
MR	Monitoring, Regular	Inorganic Chemicals	Cadmium	9473414	Returned to Compliance	01-JAN-1993	31-DEC-1993	No
MR	Monitoring, Regular	Inorganic Chemicals	Fluoride	9473416	Returned to Compliance	01-JAN-1993	31-DEC-1993	No
MR	Monitoring, Regular	Inorganic Chemicals	Mercury	9473417	Returned to Compliance	01-JAN-1993	31-DEC-1993	No
MR	Monitoring, Regular	Inorganic Chemicals	Selenium	9473418	Returned to Compliance	01-JAN-1993	31-DEC-1993	No
MR	Monitoring, Regular	Nitrate Rule	Nitrate	9318629	Known	01-JAN-1993	31-MAR-1993	No
MR	Monitoring, Regular	Inorganic Chemicals	Chromium	9473415	Returned to Compliance	01-JAN-1993	31-DEC-1993	No

1 - 50 of 133

Enforcement Actions

Latest Enforcement ID	Associated To Violation ID	Enforcement Action Type Code	Enforcement Action Description	Enforcement Date	Originator Description	Enforcement Comment
251105957003	1911059	SIF	State Public Notification received	05-MAR-2025	State	-
251105957003	1911060	SIF	State Public Notification received	05-MAR-2025	State	-
251105957003	1920145	SIF	State Public Notification received	05-MAR-2025	State	-
241922186001	2419221	SOX	State Compliance achieved	12-JUN-2024	State	-
232326479001	2323264	SOX	State Compliance achieved	22-SEP-2023	State	-
232341080002	2323410	SOX	State Compliance achieved	09-JUN-2023	State	-
183737444001	1737375	SOX	State Compliance achieved	16-NOV-2017	State	-
183737444001	1737374	SOX	State Compliance achieved	16-NOV-2017	State	-
172358443006	1723585	SOX	State Compliance achieved	08-AUG-2017	State	-
172358443006	1723584	SOX	State Compliance achieved	08-AUG-2017	State	-
162065138038	1620651	SOX	State Compliance achieved	01-AUG-2016	State	-
163424039040	1634240	SOX	State Compliance achieved	29-JUL-2016	State	-
161147738036	1611477	SOX	State Compliance achieved	29-JAN-2016	State	-
153998526001	1439988	SOX	State Compliance achieved	02-DEC-2014	State	-
153998526001	1439989	SOX	State Compliance achieved	02-DEC-2014	State	-
153998526001	1439990	SOX	State Compliance achieved	02-DEC-2014	State	-
153998526001	1439991	SOX	State Compliance achieved	02-DEC-2014	State	-
153998526001	1439987	SOX	State Compliance achieved	02-DEC-2014	State	-
153998526001	1439986	SOX	State Compliance achieved	02-DEC-2014	State	-
153998526001	1439985	SOX	State Compliance achieved	02-DEC-2014	State	-
153998526001	1439992	SOX	State Compliance achieved	02-DEC-2014	State	-
153998526001	1439993	SOX	State Compliance achieved	02-DEC-2014	State	-
153998526001	1439994	SOX	State Compliance achieved	02-DEC-2014	State	-
153998526001	1439995	SOX	State Compliance achieved	02-DEC-2014	State	-
153998526001	1439996	SOX	State Compliance achieved	02-DEC-2014	State	-
153998526001	1439997	SOX	State Compliance achieved	02-DEC-2014	State	-
153998526001	1439998	SOX	State Compliance achieved	02-DEC-2014	State	-
153998526001	1439999	SOX	State Compliance achieved	02-DEC-2014	State	-
153998526001	1440000	SOX	State Compliance achieved	02-DEC-2014	State	-
153998526001	1440001	SOX	State Compliance achieved	02-DEC-2014	State	-
134010619003	1340106	SOX	State Compliance achieved	10-SEP-2013	State	-
12430898003	1143089	SOX	State Compliance achieved	01-NOV-2011	State	-
12357749001	1135774	SOX	State Compliance achieved	05-OCT-2011	State	-
102326586001	0923265	SOX	State Compliance achieved	02-NOV-2009	State	-
092206480001	0822064	SOX	State Compliance achieved	22-OCT-2008	State	-
072408474001	0724084	SOX	State Compliance achieved	14-AUG-2007	State	-
073169767001	0631697	SOX	State Compliance achieved	25-OCT-2006	State	-
061929567001	0619295	SOX	State Compliance achieved	04-MAY-2006	State	-
064136861002	0541368	SOX	State Compliance achieved	15-DEC-2005	State	-
054192956001	0441929	SOX	State Compliance achieved	04-NOV-2004	State	-
0000085	00V0001	EOX	Federal Compliance achieved	10-JUL-2000	ODSWeb	-
94E0003	9473416	SOX	State Compliance achieved	25-AUG-1994	State	-
94E0003	9473418	SOX	State Compliance achieved	25-AUG-1994	State	-
94E0003	9473417	SOX	State Compliance achieved	25-AUG-1994	State	-
94E0003	9473415	SOX	State Compliance achieved	25-AUG-1994	State	-
94E0003	9473414	SOX	State Compliance achieved	25-AUG-1994	State	-
94E0003	9473413	SOX	State Compliance achieved	25-AUG-1994	State	-
94E0003	9473412	SOX	State Compliance achieved	25-AUG-1994	State	-
94E0001	9415737	SOX	State Compliance achieved	05-MAY-1994	State	-
93E0001	9318929	SFJ	State Formal Notice of Violation issued	03-JAN-1994	State	-

1 - 50 of 114

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
YORK WELL #4	005	Yes	Well	Ground water	Permanent	Active
YORK WELL #3	004	Yes	Well	Ground water	Permanent	Active
LANCASTER WELL #3	003	Yes	Well	Ground water	Permanent	Active
LANCASTER WELL #2	002	Yes	Well	Ground water	Permanent	Active
CLEARWELL	101	No	Sampling Station	-	-	Active
CHICKIES WELL HOUSE	102	No	Sampling Station	-	-	Active
DUGANS WELLHOUSE	103	No	Sampling Station	-	-	Active
WALNUT STREET FILTRA	300	No	Treatment Plant	-	-	Active
LOCKARD HOLLOW BOOST	301	No	Treatment Plant	-	-	Active
SPRUCE ST BOOSTER	302	No	Treatment Plant	-	-	Active
PROSPECT TANK BOOST	303	No	Treatment Plant	-	-	Active
MANOR MOUNTVIL BOOST	304	No	Treatment Plant	-	-	Active
CHICKES WELL HOUSE 2	305	No	Treatment Plant	-	-	Active
DUGAN RUN TRMT PLANT	306	No	Treatment Plant	-	-	Active

1 - 15 of 15

Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
WALNUT STREET FILTRA	300	Inhibitor, Polyphosphate	Corrosion control
WALNUT STREET FILTRA	300	pH Adjustment, Post	Corrosion control
WALNUT STREET FILTRA	300	Hypochlorination, Post	Disinfection
WALNUT STREET FILTRA	300	Hypochlorination, Pre	Disinfection
WALNUT STREET FILTRA	300	Coagulation	Particulate removal
WALNUT STREET FILTRA	300	Flocculation	Particulate removal
WALNUT STREET FILTRA	300	Sedimentation	Particulate removal
WALNUT STREET FILTRA	300	Permanganate	Manganese removal
WALNUT STREET FILTRA	300	Filtration, Rapid Sand	Particulate removal
WALNUT STREET FILTRA	300	Innovative	Other
LOCKARD HOLLOW BOOST	301	Hypochlorination, Post	Disinfection
SPRUCE ST BOOSTER	302	Hypochlorination, Post	Disinfection
PROSPECT TANK BOOST	303	Hypochlorination, Post	Disinfection
MANOR MOUNTVIL BOOST	304	Hypochlorination, Post	Disinfection
CHICKES WELL HOUSE 2	305	Gaseous Chlorination, Post	Disinfection
CHICKES WELL HOUSE 2	305	Inhibitor, Polyphosphate	Corrosion control
CHICKES WELL HOUSE 2	305	4-Log Treatment of Viruses	Disinfection
DUGAN RUN TRMT PLANT	306	Gaseous Chlorination, Post	Disinfection
DUGAN RUN TRMT PLANT	306	Permanganate	Iron removal
DUGAN RUN TRMT PLANT	306	Filtration, Greensand	Iron removal
DUGAN RUN TRMT PLANT	306	4-Log Treatment of Viruses	Disinfection

1 - 21 of 21

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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