Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	WA5356350
PWS Name	MOSSYROCK PUBLIC UTILITY CITY OF
PWS Type	Community water system
Owner Type	Local government
Primary Source	Ground water
Primacy Type	State
Is Wholesaler?	Yes
Population Served	1553
County Served	Lewis

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
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	2566845	Returned to Compliance	01-JUL-2025	-	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	2464789	Returned to Compliance	01-JUL-2024	-	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	2362690	Returned to Compliance	01-JUL-2023	-	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	1640301	Returned to Compliance	01-JUL-2016	-	No
MR	Monitoring, Repeat Major (TCR)	Total Coliform Rule	Coliform (TCR)	1621524	Returned to Compliance	01-FEB-2016	29-FEB-2016	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	1968317	Returned to Compliance	01-JAN-2015	31-DEC-2015	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	1964430	Returned to Compliance	01-JAN-2015	31-DEC-2015	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	1467496	Returned to Compliance	01-NOV-2014	30-NOV-2014	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	1446509	Returned to Compliance	01-AUG-2014	31-AUG-2014	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	1712561	Returned to Compliance	01-JAN-2014	31-DEC-2014	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	1712562	Returned to Compliance	01-JAN-2014	31-DEC-2014	No
MR	Monitoring, Regular	Nitrate Rule	Nitrate	1328236	Returned to Compliance	01-JAN-2013	31-DEC-2013	No
MR	Monitoring, Regular	Nitrate Rule	Nitrate	1328255	Returned to Compliance	01-JAN-2013	31-DEC-2013	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	1129581	Returned to Compliance	01-JUL-2011	-	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	1027395	Returned to Compliance	01-JUL-2010	-	No
MR	Monitoring, Regular	Nitrate Rule	Nitrate	0855541	Returned to Compliance	01-JAN-2008	31-DEC-2008	No
MR	Monitoring, Regular	Nitrate Rule	Nitrate	0851975	Returned to Compliance	01-JAN-2008	31-DEC-2008	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	0577957	Known	01-JUN-2005	30-JUN-2005	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	0460587	Known	01-OCT-2004	31-OCT-2004	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	0099999	Returned to Compliance	19-OCT-1999	31-DEC-1999	No
MR	Initial Tap Sampling for Pb and Cu	Lead and Copper Rule	Lead and Copper Rule	9993001	Returned to Compliance	01-JAN-1999	01-JAN-2000	No
MCL	Maximum Contaminant Level Violation, Acute (TCR)	Total Coliform Rule	Coliform (TCR)	9601374	Known	01-APR-1996	30-APR-1996	Yes
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	9550297	Known	01-JUN-1995	30-JUN-1995	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	9550298	Known	01-APR-1995	30-APR-1995	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	9375548	Known	01-SEP-1993	30-SEP-1993	No
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	9350464	Known	01-APR-1993	30-APR-1993	Yes
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	9301888	Known	01-NOV-1992	30-NOV-1992	No
MR	Monitoring, Regular	Inorganic Chemicals	Selenium	8058368	Known	01-OCT-1979	31-OCT-1979	No
MR	Monitoring, Regular	Inorganic Chemicals	Chromium	8058363	Known	01-OCT-1979	31-OCT-1979	No
MR	Monitoring, Regular	Inorganic Chemicals	Cadmium	8058362	Known	01-OCT-1979	31-OCT-1979	No
MR	Monitoring, Regular	Arsenic Rule	Arsenic	8058360	Known	01-OCT-1979	31-OCT-1979	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	8051434	Known	01-OCT-1979	31-OCT-1979	No
MR	Monitoring, Regular	Nitrate Rule	Nitrate	8058367	Known	01-OCT-1979	31-OCT-1979	No
MR	Monitoring, Regular	Inorganic Chemicals	Mercury	8058366	Known	01-OCT-1979	31-OCT-1979	No
MR	Monitoring, Regular	Inorganic Chemicals	Fluoride	8058364	Known	01-OCT-1979	31-OCT-1979	No
MR	Monitoring, Regular	Inorganic Chemicals	Barium	8058361	Known	01-OCT-1979	31-OCT-1979	No

1 - 36 of 36

Enforcement Actions

Latest Enforcement ID	Associated To Violation ID	Enforcement Action Type Code	Enforcement Action Description	Enforcement Date	Originator Description	Enforcement Comment
66845ENF	2566845	SOX	State Compliance achieved	29-AUG-2025	State	-
64789ENF	2464789	SOX	State Compliance achieved	19-FEB-2025	State	-
62690ENF	2362690	SOX	State Compliance achieved	29-SEP-2023	State	-
40301ENF	1640301	SOX	State Compliance achieved	05-DEC-2016	State	-
1968317ENF	1712561	SOX	State Compliance achieved	16-AUG-2016	State	-
1964430ENF	1964430	SOX	State Compliance achieved	16-AUG-2016	State	-
1968317ENF	1968317	SOX	State Compliance achieved	16-AUG-2016	State	-
1964430ENF	1712562	SOX	State Compliance achieved	16-AUG-2016	State	-
2021524ENF	1621524	SOX	State Compliance achieved	31-MAR-2016	State	-
1767496ENF	1467496	SOX	State Compliance achieved	31-DEC-2014	State	-
1746509ENF	1446509	SOX	State Compliance achieved	30-SEP-2014	State	-
1528236ENF	1328236	SOX	State Compliance achieved	29-MAY-2014	State	-
1528255ENF	1328255	SOX	State Compliance achieved	29-MAY-2014	State	-
29581ENF	1129581	SOX	State Compliance achieved	02-NOV-2011	State	-
27395ENF	1027395	SOX	State Compliance achieved	26-OCT-2010	State	-
N1293	0855541	SOX	State Compliance achieved	01-JAN-2009	State	-
N1293	0851975	SOX	State Compliance achieved	01-JAN-2009	State	-
0093001	9993001	SOX	State Compliance achieved	01-JAN-2000	State	-
0099999	0099999	EOX	Federal Compliance achieved	31-DEC-1999	ODSWeb	-
9600181	9601374	SIA	State Violation/Reminder Notice	30-APR-1996	State	-
9500180	9550297	SIA	State Violation/Reminder Notice	30-JUN-1995	State	-
9500178	9550298	SIA	State Violation/Reminder Notice	30-APR-1995	State	-
9440134	9375548	EFJ	Federal issued Formal Notice of Violation	23-AUG-1994	ODSWeb	-
9440134	9350464	EFJ	Federal issued Formal Notice of Violation	23-AUG-1994	ODSWeb	-
9440134	9301888	EFJ	Federal issued Formal Notice of Violation	23-AUG-1994	ODSWeb	-

1 - 25 of 25

All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
FISH HATCHERY	20503	Yes	Spring	Ground water	Emergency	Inactive
WELL #2 AFM995 MOSSYROCK	20504	Yes	Well	Ground water	Permanent	Active
WELL #1 ABR983 MOSSYROCK 1963	20502	Yes	Well	Ground water	Permanent	Active
Wells 1 and 2	2249	No	Treatment Plant	-	-	Active

1 - 4 of 4

Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
Wells 1 and 2	2249	Hypochlorination, Post	Disinfection

1 - 1 of 1

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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