Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	OH3801512
PWS Name	WALNUT CREEK WATER CO.
PWS Type	Community water system
Owner Type	Private
Primary Source	Ground water
Primacy Type	State
Is Wholesaler?	No
Population Served	1270
County Served	Holmes

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	LSL Reporting	Lead and Copper Rule Revisions	LEAD AND COPPER RULE REVISIONS	8095759	Returned to Compliance	17-OCT-2024	-	No
TT	LSL Inventory	Lead and Copper Rule Revisions	LEAD AND COPPER RULE REVISIONS	8095760	Returned to Compliance	17-OCT-2024	-	Yes
Other	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	Consumer Confidence Rule	8095730	Open	26-OCT-2022	-	No
Other	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	Consumer Confidence Rule	8095724	Open	21-JAN-2020	-	No
Other	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	Consumer Confidence Rule	8095723	Open	06-NOV-2018	-	No
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	8095716	Known	01-NOV-2012	30-NOV-2012	Yes
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	8095715	Known	01-OCT-2012	31-OCT-2012	Yes
MR	Lead Consumer Notice	Lead and Copper Rule	Lead and Copper Rule	8095710	Returned to Compliance	31-DEC-2011	-	No
MR	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	Lead and Copper Rule	8093506	Returned to Compliance	01-OCT-2005	-	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Benzene	8094003	Returned to Compliance	01-JAN-2003	30-JUN-2003	No
MR	Monitoring, Regular	Volatile Organic Chemicals	CHLOROBENZENE	8093903	Returned to Compliance	01-JAN-2003	30-JUN-2003	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Tetrachloroethylene	8094503	Returned to Compliance	01-JAN-2003	30-JUN-2003	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,2-Trichloroethane	8095503	Returned to Compliance	01-JAN-2003	30-JUN-2003	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Trichloroethylene	8094903	Returned to Compliance	01-JAN-2003	30-JUN-2003	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloropropane	8093803	Returned to Compliance	01-JAN-2003	30-JUN-2003	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Carbon tetrachloride	8094803	Returned to Compliance	01-JAN-2003	30-JUN-2003	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,1-Trichloroethane	8093703	Returned to Compliance	01-JAN-2003	30-JUN-2003	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloroethane	8094403	Returned to Compliance	01-JAN-2003	30-JUN-2003	No
MR	Monitoring, Regular	Volatile Organic Chemicals	trans-1,2-Dichloroethylene	8095203	Returned to Compliance	01-JAN-2003	30-JUN-2003	No
MR	Monitoring, Regular	Inorganic Chemicals	Beryllium, Total	6128503	Returned to Compliance	01-JAN-2003	30-JUN-2003	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Vinyl chloride	8094303	Returned to Compliance	01-JAN-2003	30-JUN-2003	No
MR	Monitoring, Regular	Volatile Organic Chemicals	p-Dichlorobenzene	8095403	Returned to Compliance	01-JAN-2003	30-JUN-2003	No
MR	Monitoring, Regular	Volatile Organic Chemicals	o-Dichlorobenzene	8095303	Returned to Compliance	01-JAN-2003	30-JUN-2003	No
MR	Monitoring, Regular	Volatile Organic Chemicals	DICHLOROMETHANE	8094203	Returned to Compliance	01-JAN-2003	30-JUN-2003	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Xylenes, Total	8093603	Returned to Compliance	01-JAN-2003	30-JUN-2003	No
MR	Monitoring, Regular	Inorganic Chemicals	Chromium	6128003	Returned to Compliance	01-JAN-2003	30-JUN-2003	No
MR	Monitoring, Regular	Volatile Organic Chemicals	cis-1,2-Dichloroethylene	8095603	Returned to Compliance	01-JAN-2003	30-JUN-2003	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2,4-Trichlorobenzene	8094103	Returned to Compliance	01-JAN-2003	30-JUN-2003	No
MR	Monitoring, Regular	Inorganic Chemicals	Selenium	6127803	Returned to Compliance	01-JAN-2003	30-JUN-2003	No
MR	Monitoring, Regular	Nitrate Rule	Nitrate	6128703	Returned to Compliance	01-JAN-2003	30-JUN-2003	No
MR	Monitoring, Regular	Inorganic Chemicals	Nickel	6128403	Returned to Compliance	01-JAN-2003	30-JUN-2003	No
MR	Monitoring, Regular	Inorganic Chemicals	Mercury	6127903	Returned to Compliance	01-JAN-2003	30-JUN-2003	No
MR	Monitoring, Regular	Inorganic Chemicals	Fluoride	6127603	Returned to Compliance	01-JAN-2003	30-JUN-2003	No
MR	Monitoring, Regular	Inorganic Chemicals	CYANIDE	6127503	Returned to Compliance	01-JAN-2003	30-JUN-2003	No
MR	Monitoring, Regular	Inorganic Chemicals	Cadmium	6128103	Returned to Compliance	01-JAN-2003	30-JUN-2003	No
MR	Monitoring, Regular	Inorganic Chemicals	Barium	6128203	Returned to Compliance	01-JAN-2003	30-JUN-2003	No
MR	Monitoring, Regular	Arsenic Rule	Arsenic	6127703	Returned to Compliance	01-JAN-2003	30-JUN-2003	No
MR	Monitoring, Regular	Inorganic Chemicals	Thallium, Total	6128303	Returned to Compliance	01-JAN-2003	30-JUN-2003	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Toluene	8095003	Returned to Compliance	01-JAN-2003	30-JUN-2003	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Ethylbenzene	8094603	Returned to Compliance	01-JAN-2003	30-JUN-2003	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Styrene	8095103	Returned to Compliance	01-JAN-2003	30-JUN-2003	No
MR	Monitoring, Regular	Inorganic Chemicals	Antimony, Total	6128603	Returned to Compliance	01-JAN-2003	30-JUN-2003	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1-Dichloroethylene	8094703	Returned to Compliance	01-JAN-2003	30-JUN-2003	No
MR	Monitoring, Regular	Inorganic Chemicals	Antimony, Total	2319397	Returned to Compliance	01-JAN-1997	30-JUN-1997	No
MR	Monitoring, Regular	Inorganic Chemicals	Barium	2318897	Returned to Compliance	01-JAN-1997	30-JUN-1997	No
MR	Monitoring, Regular	Inorganic Chemicals	Beryllium, Total	2319497	Returned to Compliance	01-JAN-1997	30-JUN-1997	No
MR	Monitoring, Regular	Inorganic Chemicals	Thallium, Total	2319697	Returned to Compliance	01-JAN-1997	30-JUN-1997	No
MR	Monitoring, Regular	Arsenic Rule	Arsenic	2319797	Returned to Compliance	01-JAN-1997	30-JUN-1997	No
MR	Monitoring, Regular	Inorganic Chemicals	Chromium	2319097	Returned to Compliance	01-JAN-1997	30-JUN-1997	No
MR	Monitoring, Regular	Inorganic Chemicals	Cadmium	2318997	Returned to Compliance	01-JAN-1997	30-JUN-1997	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
8081444	8095760	SIF	State Public Notification received	30-JUN-2025	State	-
8081443	8095759	SIF	State Public Notification received	30-JUN-2025	State	-
8081429	8095730	SIA	State Violation/Reminder Notice	26-OCT-2022	State	-
8081423	8095724	SIA	State Violation/Reminder Notice	21-JAN-2020	State	-
8081422	8095723	SIA	State Violation/Reminder Notice	06-NOV-2018	State	2017 CCR
8081414	8095715	SIF	State Public Notification received	07-FEB-2013	State	-
8081413	8095716	SIE	State Public Notification requested	28-NOV-2012	State	-
5	8095710	SOX	State Compliance achieved	29-FEB-2012	State	-
8081408	8093506	SOX	State Compliance achieved	30-SEP-2008	State	-
296	2319995	SOX	State Compliance achieved	19-APR-2007	State	THIS WAS SOXED BY AN AUTOMATED PROCESS CREATED BY TAB.
493	2320093	SOX	State Compliance achieved	19-APR-2007	State	THIS WAS SOXED BY AN AUTOMATED PROCESS CREATED BY TAB.
2102104	6128703	SIF	State Public Notification received	21-OCT-2003	State	-
82503	6127503	SIA	State Violation/Reminder Notice	25-AUG-2003	State	-
82503	6127603	SIA	State Violation/Reminder Notice	25-AUG-2003	State	-
82503	6127703	SIA	State Violation/Reminder Notice	25-AUG-2003	State	-
82503	6127803	SIA	State Violation/Reminder Notice	25-AUG-2003	State	-
82503	6127903	SIA	State Violation/Reminder Notice	25-AUG-2003	State	-
82503	6128003	SIA	State Violation/Reminder Notice	25-AUG-2003	State	-
82503	6128103	SIA	State Violation/Reminder Notice	25-AUG-2003	State	-
82503	6128203	SIA	State Violation/Reminder Notice	25-AUG-2003	State	-
82503	6128303	SIA	State Violation/Reminder Notice	25-AUG-2003	State	-
82503	6128403	SIA	State Violation/Reminder Notice	25-AUG-2003	State	-
82503	6128503	SIA	State Violation/Reminder Notice	25-AUG-2003	State	-
82503	6128603	SIA	State Violation/Reminder Notice	25-AUG-2003	State	-
82503	8093603	SIA	State Violation/Reminder Notice	25-AUG-2003	State	-
82503	8093703	SIA	State Violation/Reminder Notice	25-AUG-2003	State	-
82503	8093803	SIA	State Violation/Reminder Notice	25-AUG-2003	State	-
82503	8093903	SIA	State Violation/Reminder Notice	25-AUG-2003	State	-
82503	8094003	SIA	State Violation/Reminder Notice	25-AUG-2003	State	-
82503	8094103	SIA	State Violation/Reminder Notice	25-AUG-2003	State	-
82503	8094203	SIA	State Violation/Reminder Notice	25-AUG-2003	State	-
82503	8094303	SIA	State Violation/Reminder Notice	25-AUG-2003	State	-
82503	8094403	SIA	State Violation/Reminder Notice	25-AUG-2003	State	-
82503	8094503	SIA	State Violation/Reminder Notice	25-AUG-2003	State	-
82503	8094603	SIA	State Violation/Reminder Notice	25-AUG-2003	State	-
82503	8094703	SIA	State Violation/Reminder Notice	25-AUG-2003	State	-
82503	8094803	SIA	State Violation/Reminder Notice	25-AUG-2003	State	-
82503	8094903	SIA	State Violation/Reminder Notice	25-AUG-2003	State	-
82503	8095003	SIA	State Violation/Reminder Notice	25-AUG-2003	State	-
82503	8095103	SIA	State Violation/Reminder Notice	25-AUG-2003	State	-
82503	8095203	SIA	State Violation/Reminder Notice	25-AUG-2003	State	-
82503	8095303	SIA	State Violation/Reminder Notice	25-AUG-2003	State	-
82503	8095403	SIA	State Violation/Reminder Notice	25-AUG-2003	State	-
82503	8095503	SIA	State Violation/Reminder Notice	25-AUG-2003	State	-
82503	8095603	SIA	State Violation/Reminder Notice	25-AUG-2003	State	-
1298	2319097	SOX	State Compliance achieved	01-DEC-1997	State	-
1298	2318997	SOX	State Compliance achieved	01-DEC-1997	State	-
1298	2318897	SOX	State Compliance achieved	01-DEC-1997	State	-
1298	2319197	SOX	State Compliance achieved	01-DEC-1997	State	-
1298	2319297	SOX	State Compliance achieved	01-DEC-1997	State	-

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All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
WALNUT CREEK WATER CO. WELL 0001	13583	Yes	Well	Ground water	Permanent	Active
WALNUT CREEK WATER CO. WELL 0002	13584	Yes	Well	Ground water	Permanent	Inactive
WALNUT CREEK WATER CO. WELL 0004	13586	Yes	Well	Ground water	Permanent	Active
WALNUT CREEK WATER CO. WELL 0003	13585	Yes	Well	Ground water	Permanent	Active
WALNUT CREEK WATER CO. DISTRIBUTION	25863	No	Distribution System/Zone	-	-	Active
WALNUT CREEK WTP INTERMEDIATE PUMPS	43024	No	Pump Facility	-	-	Active
WALNUT CREEK WTP HIGH SERVICE PUMPS	43025	No	Pump Facility	-	-	Active
WALNUT CREEK BOOSTER PUMP STATION	43026	No	Pump Facility	-	-	Active
Walnut Creek Water Co. P01	92851	No	Sampling Station	-	-	Inactive
Walnut Creek Water Co. P02	92853	No	Sampling Station	-	-	Inactive
Walnut Creek Water Co. P03	92855	No	Sampling Station	-	-	Inactive
250,000 GAL ELEVATED	39582	No	Storage	-	-	Active
91,000 GAL STANDPIPE	39583	No	Storage	-	-	Active
WALNUT CREEK WATER CO. STU 1	4127	No	Treatment Plant	-	-	Active
WALNUT CREEK WATER CO. STU 2	4128	No	Treatment Plant	-	-	Inactive
WALNUT CREEK WATER CO. STU 3	4129	No	Treatment Plant	-	-	Inactive

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Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
WALNUT CREEK WATER CO. STU 1	4127	Hypochlorination, Pre	Iron removal
WALNUT CREEK WATER CO. STU 1	4127	Permanganate	Iron removal
WALNUT CREEK WATER CO. STU 1	4127	Aeration, Diffused	Iron removal
WALNUT CREEK WATER CO. STU 1	4127	Innovative	Iron removal
WALNUT CREEK WATER CO. STU 1	4127	Filtration, Pressure Sand	Iron removal
WALNUT CREEK WATER CO. STU 1	4127	Hypochlorination, Post	Disinfection
WALNUT CREEK WATER CO. STU 1	4127	Innovative	Disinfection
WALNUT CREEK WATER CO. STU 1	4127	Filtration, Pressure Sand	Manganese removal
WALNUT CREEK WATER CO. STU 3	4129	Hypochlorination, Post	Disinfection

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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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