Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	OH4900712
PWS Name	LONDON CITY PWS
PWS Type	Community water system
Owner Type	Local government
Primary Source	Ground water
Primacy Type	State
Is Wholesaler?	No
Population Served	10256
County Served	Madison

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
RPT	Notification, Known or Potential LSL	Lead and Copper Rule Revisions	LEAD AND COPPER RULE REVISIONS	8347826	Open	02-JUL-2025	-	No
Other	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	Consumer Confidence Rule	8347823	Open	20-DEC-2024	-	No
Other	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	Consumer Confidence Rule	8347822	Returned to Compliance	25-JAN-2024	-	No
MR	Monitoring, Source Water (GWR)	Ground Water Rule	E. COLI	8347821	Returned to Compliance	21-JUL-2023	-	No
MCL	Maximum Contaminant Level Violation, E. coli (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	8347819	Returned to Compliance	01-JUL-2022	31-JUL-2022	Yes
Other	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	Consumer Confidence Rule	8347820	Returned to Compliance	01-JAN-2022	-	No
Other	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	Consumer Confidence Rule	8347818	Returned to Compliance	21-JAN-2020	-	No
Other	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	Consumer Confidence Rule	8347817	Returned to Compliance	14-SEP-2018	-	No
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	8347815	Returned to Compliance	01-JAN-2015	31-JAN-2015	Yes
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	8347814	Returned to Compliance	01-APR-2013	30-APR-2013	Yes
MCL	Maximum Contaminant Level Violation, Acute (TCR)	Total Coliform Rule	Coliform (TCR)	8347811	Returned to Compliance	01-JUN-2012	30-JUN-2012	Yes
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	8347810	Returned to Compliance	01-JUN-2012	30-JUN-2012	Yes
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	7507605	Returned to Compliance	01-NOV-2004	30-NOV-2004	Yes
MCL	Maximum Contaminant Level Violation, Acute (TCR)	Total Coliform Rule	Coliform (TCR)	7323904	Returned to Compliance	01-SEP-2004	30-SEP-2004	Yes
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	7324004	Returned to Compliance	01-SEP-2004	30-SEP-2004	Yes
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	6160103	Returned to Compliance	01-AUG-2003	31-AUG-2003	Yes
MR	Monitoring, Routine Minor (TCR)	Total Coliform Rule	Coliform (TCR)	6160003	Returned to Compliance	01-APR-2003	30-JUN-2003	No
Other	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	Consumer Confidence Rule	1520801	Returned to Compliance	01-JUL-2001	-	No
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	8347600	Returned to Compliance	01-JUL-2000	31-JUL-2000	Yes
MR	Monitoring, Regular	Synthetic Organic Chemicals	Benzo(a)pyrene	3130497	Returned to Compliance	01-JAN-1997	31-MAR-1997	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	2,4-D	3130397	Returned to Compliance	01-JAN-1997	31-MAR-1997	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Total Polychlorinated Biphenyls (PCB)	3130697	Returned to Compliance	01-JAN-1997	31-MAR-1997	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Carbofuran	3130097	Returned to Compliance	01-JAN-1997	31-MAR-1997	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Picloram	3129997	Returned to Compliance	01-JAN-1997	31-MAR-1997	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Di(2-ethylhexyl) phthalate	3129897	Returned to Compliance	01-JAN-1997	31-MAR-1997	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	OXAMYL	3129797	Returned to Compliance	01-JAN-1997	31-MAR-1997	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Di(2-ethylhexyl) adipate	3129697	Returned to Compliance	01-JAN-1997	31-MAR-1997	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Glyphosate	3129597	Returned to Compliance	01-JAN-1997	31-MAR-1997	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Endothall	3129497	Returned to Compliance	01-JAN-1997	31-MAR-1997	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Diquat	3129397	Returned to Compliance	01-JAN-1997	31-MAR-1997	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Methoxychlor	3129097	Returned to Compliance	01-JAN-1997	31-MAR-1997	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	BHC-GAMMA	3128997	Returned to Compliance	01-JAN-1997	31-MAR-1997	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Pentachlorophenol	3130597	Returned to Compliance	01-JAN-1997	31-MAR-1997	No
MCL	Maximum Contaminant Level Violation, Acute (TCR)	Total Coliform Rule	Coliform (TCR)	3131197	Returned to Compliance	01-OCT-1996	31-OCT-1996	Yes
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	3131297	Returned to Compliance	01-OCT-1996	31-OCT-1996	Yes
MCL	Maximum Contaminant Level Violation, Acute (TCR)	Total Coliform Rule	Coliform (TCR)	3130996	Returned to Compliance	01-SEP-1996	30-SEP-1996	Yes
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	3131096	Returned to Compliance	01-SEP-1996	30-SEP-1996	Yes
MR	Monitoring, Regular	Synthetic Organic Chemicals	Simazine	3131396	Returned to Compliance	01-JAN-1996	31-MAR-1996	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Atrazine	3131596	Returned to Compliance	01-JAN-1996	31-MAR-1996	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	LASSO	3131696	Returned to Compliance	01-JAN-1996	31-MAR-1996	No
MR	Monitoring, Routine Minor (TCR)	Total Coliform Rule	Coliform (TCR)	3128895	Returned to Compliance	01-MAR-1995	31-MAR-1995	No
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	3131893	Returned to Compliance	01-JUL-1993	31-JUL-1993	Yes

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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
2121843	8347826	SIE	State Public Notification requested	21-OCT-2025	State	-
2121839	8347823	SIA	State Violation/Reminder Notice	20-DEC-2024	State	-
2121838	8347820	SOX	State Compliance achieved	13-JUN-2024	State	included info in 2023 ccr to SOX this NOV- AKS
2121838	8347822	SOX	State Compliance achieved	13-JUN-2024	State	included info in 2023 ccr to SOX this NOV- AKS
2121838	8347818	SOX	State Compliance achieved	13-JUN-2024	State	included info in 2023 ccr to SOX this NOV- AKS
2121838	8347817	SOX	State Compliance achieved	13-JUN-2024	State	included info in 2023 ccr to SOX this NOV- AKS
2121836	8347821	SOX	State Compliance achieved	31-JUL-2023	State	PWS collected 3 TGs samples on 7/31/2023
2121830	8347819	SIF	State Public Notification received	02-AUG-2022	State	-
2121822	8347815	SOX	State Compliance achieved	26-FEB-2015	State	-
2121818	8347814	SIF	State Public Notification received	13-JUN-2013	State	-
2121814	8347810	SOX	State Compliance achieved	26-JUL-2012	State	11/9/12 - SAMPLE #33998 COMPLETED RTC PERIOD - TB
2121814	8347811	SOX	State Compliance achieved	26-JUL-2012	State	11/9/12 - SAMPLE #33998 COMPLETED RTC PERIOD - TB
2121807	1520801	SOX	State Compliance achieved	16-JUL-2007	State	-
797	3131297	SOX	State Compliance achieved	19-APR-2007	State	THIS WAS SOXED BY AN AUTOMATED PROCESS CREATED BY TAB.
495	3128895	SOX	State Compliance achieved	19-APR-2007	State	THIS WAS SOXED BY AN AUTOMATED PROCESS CREATED BY TAB.
3196	3130996	SOX	State Compliance achieved	19-APR-2007	State	THIS WAS SOXED BY AN AUTOMATED PROCESS CREATED BY TAB.
3196	3131096	SOX	State Compliance achieved	19-APR-2007	State	THIS WAS SOXED BY AN AUTOMATED PROCESS CREATED BY TAB.
493	3131893	SOX	State Compliance achieved	19-APR-2007	State	THIS WAS SOXED BY AN AUTOMATED PROCESS CREATED BY TAB.
797	3131197	SOX	State Compliance achieved	19-APR-2007	State	THIS WAS SOXED BY AN AUTOMATED PROCESS CREATED BY TAB.
2091703	6160103	SOX	State Compliance achieved	19-APR-2007	State	THIS WAS SOXED BY AN AUTOMATED PROCESS CREATED BY TAB.
2121705	7323904	SOX	State Compliance achieved	19-APR-2007	State	THIS WAS SOXED BY AN AUTOMATED PROCESS CREATED BY TAB.
2121705	7324004	SOX	State Compliance achieved	19-APR-2007	State	THIS WAS SOXED BY AN AUTOMATED PROCESS CREATED BY TAB.
2121705	7507605	SOX	State Compliance achieved	19-APR-2007	State	THIS WAS SOXED BY AN AUTOMATED PROCESS CREATED BY TAB.
2091500	8347600	SOX	State Compliance achieved	19-APR-2007	State	THIS WAS SOXED BY AN AUTOMATED PROCESS CREATED BY TAB.
2091703	6160003	SOX	State Compliance achieved	19-APR-2007	State	THIS WAS SOXED BY AN AUTOMATED PROCESS CREATED BY TAB.
5898	3130697	SIF	State Public Notification received	19-MAY-1998	State	-
5898	3130597	SIF	State Public Notification received	19-MAY-1998	State	-
5898	3130497	SIF	State Public Notification received	19-MAY-1998	State	-
5898	3130397	SIF	State Public Notification received	19-MAY-1998	State	-
5898	3130097	SIF	State Public Notification received	19-MAY-1998	State	-
5898	3129997	SIF	State Public Notification received	19-MAY-1998	State	-
5898	3129897	SIF	State Public Notification received	19-MAY-1998	State	-
5898	3129797	SIF	State Public Notification received	19-MAY-1998	State	-
5898	3129697	SIF	State Public Notification received	19-MAY-1998	State	-
5898	3129597	SIF	State Public Notification received	19-MAY-1998	State	-
5898	3129497	SIF	State Public Notification received	19-MAY-1998	State	-
5898	3129097	SIF	State Public Notification received	19-MAY-1998	State	-
5898	3129397	SIF	State Public Notification received	19-MAY-1998	State	-
5898	3128997	SIF	State Public Notification received	19-MAY-1998	State	-
2096	3131696	SIF	State Public Notification received	21-JUN-1996	State	-
2096	3131596	SIF	State Public Notification received	21-JUN-1996	State	-
2096	3131396	SIF	State Public Notification received	21-JUN-1996	State	-

1 - 42 of 42

All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
LONDON, CITY OF WELL 0006	14777	Yes	Well	Ground water	Permanent	Active
LONDON, CITY OF WELL 0008	14779	Yes	Well	Ground water	Permanent	Inactive
LONDON, CITY OF WELL 0009	43636	Yes	Well	Ground water	Permanent	Active
LONDON, CITY OF WELL 0RW2	14782	Yes	Well	Ground water	Permanent	Active
LONDON, CITY OF WELL 00R3	14781	Yes	Well	Ground water	Permanent	Active
LONDON, CITY OF WELL 00R1	14780	Yes	Well	Ground water	Permanent	Active
LONDON, CITY OF WELL 0007	14778	Yes	Well	Ground water	Permanent	Active
LONDON CLEARWELL	35484	No	Clear Well	-	-	Inactive
LONDON, CITY OF DISTRIBUTION	26810	No	Distribution System/Zone	-	-	Active
LONDON HIGH SERVICE PUMPS	35486	No	Pump Facility	-	-	Active
London, City Of P01	97382	No	Sampling Station	-	-	Inactive
LONDON CLEARWELL	46355	No	Storage	-	-	Active
1MG EAST PLANT TANK	47213	No	Storage	-	-	Active
1 MG	609	No	Storage	-	-	Active
280 K	610	No	Storage	-	-	Inactive
LONDON WTP	5042	No	Treatment Plant	-	-	Active
EAST WATER TREATMENT PLANT	45569	No	Treatment Plant	-	-	Inactive

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Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
EAST WATER TREATMENT PLANT	45569	Innovative	Other
LONDON WTP	5042	Innovative	Softening (hardness removal)
LONDON WTP	5042	Lime - Soda Ash Addition	Softening (hardness removal)
LONDON WTP	5042	Innovative	Softening (hardness removal)
LONDON WTP	5042	Innovative	Softening (hardness removal)
LONDON WTP	5042	Filtration, Rapid Sand	Softening (hardness removal)
LONDON WTP	5042	Fluoridation	Other
LONDON WTP	5042	Gaseous Chlorination, Post	Disinfection
LONDON WTP	5042	Rapid Mix	Softening (hardness removal)
LONDON WTP	5042	Sludge Treatment	Softening (hardness removal)

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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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