Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	MO5010829
PWS Name	WALNUT GROVE PWS
PWS Type	Community water system
Owner Type	Local government
Primary Source	Ground water
Primacy Type	State
Is Wholesaler?	No
Population Served	665
County Served	Greene

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
TT	Treatment Technique, Level 1 Assessment (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	7109201	Open	14-DEC-2025	-	Yes
MR	Monitoring, Source Water (GWR)	Ground Water Rule	E. COLI	7109200	Open	01-OCT-2025	-	No
RPT	Report Sample Result/Fail Monitor (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	7109199	Returned to Compliance	01-SEP-2025	-	No
RPT	LSL Reporting	Lead and Copper Rule Revisions	LEAD AND COPPER RULE REVISIONS	7109198	Returned to Compliance	17-OCT-2024	-	No
Other	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	Consumer Confidence Rule	7109197	Returned to Compliance	01-JUL-2024	-	No
RPT	Report Sample Result/Fail Monitor (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	7109196	Returned to Compliance	01-FEB-2024	-	No
MR	Lead Consumer Notice	Lead and Copper Rule	Lead and Copper Rule	7109195	Open	30-DEC-2023	-	No
Other	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	Consumer Confidence Rule	7109194	Returned to Compliance	01-JUL-2020	-	No
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	7109127	Returned to Compliance	01-NOV-2019	30-NOV-2019	No
MR	Monitoring, Regular	Nitrate Rule	Nitrate-Nitrite	7109128	Returned to Compliance	01-JAN-2019	31-DEC-2019	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Vinyl chloride	7109136	Returned to Compliance	01-JAN-2017	31-DEC-2019	No
MR	Monitoring, Regular	Inorganic Chemicals	Beryllium, Total	7109159	Returned to Compliance	01-JAN-2017	31-DEC-2019	No
MR	Monitoring, Regular	Inorganic Chemicals	Thallium, Total	7109160	Returned to Compliance	01-JAN-2017	31-DEC-2019	No
MR	Monitoring, Regular	Arsenic Rule	Arsenic	7109151	Returned to Compliance	01-JAN-2017	31-DEC-2019	No
MR	Monitoring, Regular	Inorganic Chemicals	Barium	7109152	Returned to Compliance	01-JAN-2017	31-DEC-2019	No
MR	Monitoring, Regular	Inorganic Chemicals	Cadmium	7109153	Returned to Compliance	01-JAN-2017	31-DEC-2019	No
MR	Monitoring, Regular	Inorganic Chemicals	CYANIDE	7109155	Returned to Compliance	01-JAN-2017	31-DEC-2019	No
MR	Monitoring, Regular	Inorganic Chemicals	Fluoride	7109156	Returned to Compliance	01-JAN-2017	31-DEC-2019	No
MR	Monitoring, Regular	Inorganic Chemicals	Mercury	7109157	Returned to Compliance	01-JAN-2017	31-DEC-2019	No
MR	Monitoring, Regular	Inorganic Chemicals	Selenium	7109161	Returned to Compliance	01-JAN-2017	31-DEC-2019	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2,4-Trichlorobenzene	7109130	Returned to Compliance	01-JAN-2017	31-DEC-2019	No
MR	Monitoring, Regular	Volatile Organic Chemicals	cis-1,2-Dichloroethylene	7109131	Returned to Compliance	01-JAN-2017	31-DEC-2019	No
MR	Monitoring, Regular	Inorganic Chemicals	Chromium	7109154	Returned to Compliance	01-JAN-2017	31-DEC-2019	No
MR	Monitoring, Regular	Inorganic Chemicals	Antimony, Total	7109158	Returned to Compliance	01-JAN-2017	31-DEC-2019	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Styrene	7109150	Returned to Compliance	01-JAN-2017	31-DEC-2019	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Ethylbenzene	7109149	Returned to Compliance	01-JAN-2017	31-DEC-2019	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Toluene	7109148	Returned to Compliance	01-JAN-2017	31-DEC-2019	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Benzene	7109147	Returned to Compliance	01-JAN-2017	31-DEC-2019	No
MR	Monitoring, Regular	Volatile Organic Chemicals	CHLOROBENZENE	7109146	Returned to Compliance	01-JAN-2017	31-DEC-2019	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Tetrachloroethylene	7109145	Returned to Compliance	01-JAN-2017	31-DEC-2019	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,2-Trichloroethane	7109144	Returned to Compliance	01-JAN-2017	31-DEC-2019	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Trichloroethylene	7109143	Returned to Compliance	01-JAN-2017	31-DEC-2019	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloropropane	7109142	Returned to Compliance	01-JAN-2017	31-DEC-2019	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Carbon tetrachloride	7109141	Returned to Compliance	01-JAN-2017	31-DEC-2019	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,1-Trichloroethane	7109140	Returned to Compliance	01-JAN-2017	31-DEC-2019	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloroethane	7109139	Returned to Compliance	01-JAN-2017	31-DEC-2019	No
MR	Monitoring, Regular	Volatile Organic Chemicals	trans-1,2-Dichloroethylene	7109138	Returned to Compliance	01-JAN-2017	31-DEC-2019	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1-Dichloroethylene	7109137	Returned to Compliance	01-JAN-2017	31-DEC-2019	No
MR	Monitoring, Regular	Volatile Organic Chemicals	p-Dichlorobenzene	7109135	Returned to Compliance	01-JAN-2017	31-DEC-2019	No
MR	Monitoring, Regular	Volatile Organic Chemicals	o-Dichlorobenzene	7109134	Returned to Compliance	01-JAN-2017	31-DEC-2019	No
MR	Monitoring, Regular	Volatile Organic Chemicals	DICHLOROMETHANE	7109133	Returned to Compliance	01-JAN-2017	31-DEC-2019	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Xylenes, Total	7109132	Returned to Compliance	01-JAN-2017	31-DEC-2019	No
MR	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	Lead and Copper Rule	7109125	Returned to Compliance	01-OCT-2016	-	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	7109123	Returned to Compliance	01-DEC-2015	31-DEC-2015	No
MR	Monitoring, Regular	Nitrate Rule	Nitrate-Nitrite	7109124	Returned to Compliance	01-JAN-2015	31-DEC-2015	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Radium-228	7109116	Returned to Compliance	01-JUL-2013	30-SEP-2013	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Radium-226	7109115	Returned to Compliance	01-JUL-2013	30-SEP-2013	No
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	7109111	Returned to Compliance	01-SEP-2011	30-SEP-2011	Yes
MR	Lead Consumer Notice	Lead and Copper Rule	Lead and Copper Rule	7109118	Returned to Compliance	01-JAN-2011	-	No
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	7109108	Returned to Compliance	01-AUG-2010	31-AUG-2010	Yes

1 - 50 of 55

Enforcement Actions

Latest Enforcement ID	Associated To Violation ID	Enforcement Action Type Code	Enforcement Action Description	Enforcement Date	Originator Description	Enforcement Comment
866	7109201	SIE	State Public Notification requested	29-DEC-2025	State	-
863	7109198	SOX	State Compliance achieved	04-DEC-2025	State	Per EPA compliance policy, system has RTC - RT 12/05/2025;
862	7109200	SIE	State Public Notification requested	24-NOV-2025	State	-
860	7109199	SOX	State Compliance achieved	13-NOV-2025	State	SOX vios per EPA RTC policy. LJZ 11/13/2025
860	7109196	SOX	State Compliance achieved	13-NOV-2025	State	SOX vios per EPA RTC policy. LJZ 11/13/2025
852	7109197	SFJ	State Formal Notice of Violation issued	06-NOV-2024	State	-
844	7109127	SOX	State Compliance achieved	18-DEC-2020	State	Sox'd per EPA RTC policy. MGM 10/1/2020;
848	7109140	SOX	State Compliance achieved	02-DEC-2020	State	PWS took IOC and VOC for 2020-2022 monitoring period. Soxing old vios. SDM 02/03/2021;
848	7109161	SOX	State Compliance achieved	02-DEC-2020	State	PWS took IOC and VOC for 2020-2022 monitoring period. Soxing old vios. SDM 02/03/2021;
848	7109160	SOX	State Compliance achieved	02-DEC-2020	State	PWS took IOC and VOC for 2020-2022 monitoring period. Soxing old vios. SDM 02/03/2021;
848	7109159	SOX	State Compliance achieved	02-DEC-2020	State	PWS took IOC and VOC for 2020-2022 monitoring period. Soxing old vios. SDM 02/03/2021;
848	7109158	SOX	State Compliance achieved	02-DEC-2020	State	PWS took IOC and VOC for 2020-2022 monitoring period. Soxing old vios. SDM 02/03/2021;
848	7109157	SOX	State Compliance achieved	02-DEC-2020	State	PWS took IOC and VOC for 2020-2022 monitoring period. Soxing old vios. SDM 02/03/2021;
848	7109156	SOX	State Compliance achieved	02-DEC-2020	State	PWS took IOC and VOC for 2020-2022 monitoring period. Soxing old vios. SDM 02/03/2021;
848	7109155	SOX	State Compliance achieved	02-DEC-2020	State	PWS took IOC and VOC for 2020-2022 monitoring period. Soxing old vios. SDM 02/03/2021;
848	7109154	SOX	State Compliance achieved	02-DEC-2020	State	PWS took IOC and VOC for 2020-2022 monitoring period. Soxing old vios. SDM 02/03/2021;
848	7109153	SOX	State Compliance achieved	02-DEC-2020	State	PWS took IOC and VOC for 2020-2022 monitoring period. Soxing old vios. SDM 02/03/2021;
848	7109152	SOX	State Compliance achieved	02-DEC-2020	State	PWS took IOC and VOC for 2020-2022 monitoring period. Soxing old vios. SDM 02/03/2021;
848	7109151	SOX	State Compliance achieved	02-DEC-2020	State	PWS took IOC and VOC for 2020-2022 monitoring period. Soxing old vios. SDM 02/03/2021;
848	7109150	SOX	State Compliance achieved	02-DEC-2020	State	PWS took IOC and VOC for 2020-2022 monitoring period. Soxing old vios. SDM 02/03/2021;
848	7109130	SOX	State Compliance achieved	02-DEC-2020	State	PWS took IOC and VOC for 2020-2022 monitoring period. Soxing old vios. SDM 02/03/2021;
848	7109131	SOX	State Compliance achieved	02-DEC-2020	State	PWS took IOC and VOC for 2020-2022 monitoring period. Soxing old vios. SDM 02/03/2021;
848	7109132	SOX	State Compliance achieved	02-DEC-2020	State	PWS took IOC and VOC for 2020-2022 monitoring period. Soxing old vios. SDM 02/03/2021;
848	7109133	SOX	State Compliance achieved	02-DEC-2020	State	PWS took IOC and VOC for 2020-2022 monitoring period. Soxing old vios. SDM 02/03/2021;
848	7109134	SOX	State Compliance achieved	02-DEC-2020	State	PWS took IOC and VOC for 2020-2022 monitoring period. Soxing old vios. SDM 02/03/2021;
848	7109135	SOX	State Compliance achieved	02-DEC-2020	State	PWS took IOC and VOC for 2020-2022 monitoring period. Soxing old vios. SDM 02/03/2021;
848	7109136	SOX	State Compliance achieved	02-DEC-2020	State	PWS took IOC and VOC for 2020-2022 monitoring period. Soxing old vios. SDM 02/03/2021;
848	7109137	SOX	State Compliance achieved	02-DEC-2020	State	PWS took IOC and VOC for 2020-2022 monitoring period. Soxing old vios. SDM 02/03/2021;
848	7109138	SOX	State Compliance achieved	02-DEC-2020	State	PWS took IOC and VOC for 2020-2022 monitoring period. Soxing old vios. SDM 02/03/2021;
848	7109139	SOX	State Compliance achieved	02-DEC-2020	State	PWS took IOC and VOC for 2020-2022 monitoring period. Soxing old vios. SDM 02/03/2021;
848	7109141	SOX	State Compliance achieved	02-DEC-2020	State	PWS took IOC and VOC for 2020-2022 monitoring period. Soxing old vios. SDM 02/03/2021;
848	7109142	SOX	State Compliance achieved	02-DEC-2020	State	PWS took IOC and VOC for 2020-2022 monitoring period. Soxing old vios. SDM 02/03/2021;
848	7109143	SOX	State Compliance achieved	02-DEC-2020	State	PWS took IOC and VOC for 2020-2022 monitoring period. Soxing old vios. SDM 02/03/2021;
848	7109144	SOX	State Compliance achieved	02-DEC-2020	State	PWS took IOC and VOC for 2020-2022 monitoring period. Soxing old vios. SDM 02/03/2021;
848	7109145	SOX	State Compliance achieved	02-DEC-2020	State	PWS took IOC and VOC for 2020-2022 monitoring period. Soxing old vios. SDM 02/03/2021;
848	7109146	SOX	State Compliance achieved	02-DEC-2020	State	PWS took IOC and VOC for 2020-2022 monitoring period. Soxing old vios. SDM 02/03/2021;
848	7109147	SOX	State Compliance achieved	02-DEC-2020	State	PWS took IOC and VOC for 2020-2022 monitoring period. Soxing old vios. SDM 02/03/2021;
848	7109148	SOX	State Compliance achieved	02-DEC-2020	State	PWS took IOC and VOC for 2020-2022 monitoring period. Soxing old vios. SDM 02/03/2021;
848	7109149	SOX	State Compliance achieved	02-DEC-2020	State	PWS took IOC and VOC for 2020-2022 monitoring period. Soxing old vios. SDM 02/03/2021;
846	7109194	SOX	State Compliance achieved	06-NOV-2020	State	curr ccr comp corr sox prev vio skw 11-5-20
847	7109128	SOX	State Compliance achieved	29-SEP-2020	State	PWS collected NO3 on 09/29/2020. soxing vio. SDM 11/30/2020;
831	7109125	SOX	State Compliance achieved	10-OCT-2017	State	-
829	7109124	SOX	State Compliance achieved	14-FEB-2017	State	-
826	7109123	SIF	State Public Notification received	26-SEP-2016	State	-
818	7109115	SIF	State Public Notification received	01-OCT-2014	State	-
818	7109116	SIF	State Public Notification received	01-OCT-2014	State	-
815	100	SOX	State Compliance achieved	22-JAN-2014	State	-
815	299	SOX	State Compliance achieved	22-JAN-2014	State	-
815	101094	SOX	State Compliance achieved	22-JAN-2014	State	-
815	110994	SOX	State Compliance achieved	22-JAN-2014	State	-

1 - 50 of 54

All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
WELL # 1 - INACTIVE- ENTERED HISTORY	103034	Yes	Well	Ground water	Other	Inactive
WELL #2	81552	Yes	Well	Ground water	Permanent	Active
WELL # 3	103035	Yes	Well	Ground water	Permanent	Active
DISTRIBUTION SYSTEM	87133	No	Distribution System/Zone	-	-	Active
CHEMICAL SAMPLES	91986	No	Sampling Station	-	-	Active
50K GAL WATER TOWER	76546	No	Storage	-	-	Active

1 - 6 of 6

Treatment Processes

No treatment process(es) found. EPA has no record of treatment process(es) reported by the primacy agency for this water system.

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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