Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	WA5366450
PWS Name	PATEROS WATER DEPARTMENT
PWS Type	Community water system
Owner Type	Local government
Primary Source	Ground water
Primacy Type	State
Is Wholesaler?	No
Population Served	1149
County Served	Okanogan

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, Regular	Nitrate Rule	Nitrate	2458791	Returned to Compliance	01-OCT-2024	31-DEC-2024	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	2667077	Returned to Compliance	01-JAN-2021	31-DEC-2021	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	2663998	Returned to Compliance	01-JAN-2021	31-DEC-2021	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Toluene	19504862991	Returned to Compliance	01-JAN-2019	31-MAR-2019	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Benzene	19504862990	Returned to Compliance	01-JAN-2019	31-MAR-2019	No
MR	Monitoring, Regular	Volatile Organic Chemicals	CHLOROBENZENE	19504862989	Returned to Compliance	01-JAN-2019	31-MAR-2019	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Tetrachloroethylene	19504862987	Returned to Compliance	01-JAN-2019	31-MAR-2019	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,2-Trichloroethane	19504862985	Returned to Compliance	01-JAN-2019	31-MAR-2019	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Trichloroethylene	19504862984	Returned to Compliance	01-JAN-2019	31-MAR-2019	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloropropane	19504862983	Returned to Compliance	01-JAN-2019	31-MAR-2019	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Carbon tetrachloride	19504862982	Returned to Compliance	01-JAN-2019	31-MAR-2019	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,1-Trichloroethane	19504862981	Returned to Compliance	01-JAN-2019	31-MAR-2019	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloroethane	19504862980	Returned to Compliance	01-JAN-2019	31-MAR-2019	No
MR	Monitoring, Regular	Volatile Organic Chemicals	trans-1,2-Dichloroethylene	19504862979	Returned to Compliance	01-JAN-2019	31-MAR-2019	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1-Dichloroethylene	19504862977	Returned to Compliance	01-JAN-2019	31-MAR-2019	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Vinyl chloride	19504862976	Returned to Compliance	01-JAN-2019	31-MAR-2019	No
MR	Monitoring, Regular	Volatile Organic Chemicals	p-Dichlorobenzene	19504862969	Returned to Compliance	01-JAN-2019	31-MAR-2019	No
MR	Monitoring, Regular	Volatile Organic Chemicals	o-Dichlorobenzene	19504862968	Returned to Compliance	01-JAN-2019	31-MAR-2019	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Ethylbenzene	19504862992	Returned to Compliance	01-JAN-2019	31-MAR-2019	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Styrene	19504862996	Returned to Compliance	01-JAN-2019	31-MAR-2019	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2,4-Trichlorobenzene	19504862378	Returned to Compliance	01-JAN-2019	31-MAR-2019	No
MR	Monitoring, Regular	Volatile Organic Chemicals	DICHLOROMETHANE	19504862964	Returned to Compliance	01-JAN-2019	31-MAR-2019	No
MR	Monitoring, Regular	Volatile Organic Chemicals	cis-1,2-Dichloroethylene	19504862380	Returned to Compliance	01-JAN-2019	31-MAR-2019	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2,4-Trichlorobenzene	18357162378	Returned to Compliance	01-OCT-2018	31-DEC-2018	No
MR	Monitoring, Regular	Volatile Organic Chemicals	cis-1,2-Dichloroethylene	18357162380	Returned to Compliance	01-OCT-2018	31-DEC-2018	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Ethylbenzene	18357162992	Returned to Compliance	01-OCT-2018	31-DEC-2018	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Toluene	18357162991	Returned to Compliance	01-OCT-2018	31-DEC-2018	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Benzene	18357162990	Returned to Compliance	01-OCT-2018	31-DEC-2018	No
MR	Monitoring, Regular	Volatile Organic Chemicals	CHLOROBENZENE	18357162989	Returned to Compliance	01-OCT-2018	31-DEC-2018	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Tetrachloroethylene	18357162987	Returned to Compliance	01-OCT-2018	31-DEC-2018	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,2-Trichloroethane	18357162985	Returned to Compliance	01-OCT-2018	31-DEC-2018	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Trichloroethylene	18357162984	Returned to Compliance	01-OCT-2018	31-DEC-2018	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloropropane	18357162983	Returned to Compliance	01-OCT-2018	31-DEC-2018	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Carbon tetrachloride	18357162982	Returned to Compliance	01-OCT-2018	31-DEC-2018	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,1-Trichloroethane	18357162981	Returned to Compliance	01-OCT-2018	31-DEC-2018	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloroethane	18357162980	Returned to Compliance	01-OCT-2018	31-DEC-2018	No
MR	Monitoring, Regular	Volatile Organic Chemicals	trans-1,2-Dichloroethylene	18357162979	Returned to Compliance	01-OCT-2018	31-DEC-2018	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1-Dichloroethylene	18357162977	Returned to Compliance	01-OCT-2018	31-DEC-2018	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Vinyl chloride	18357162976	Returned to Compliance	01-OCT-2018	31-DEC-2018	No
MR	Monitoring, Regular	Volatile Organic Chemicals	p-Dichlorobenzene	18357162969	Returned to Compliance	01-OCT-2018	31-DEC-2018	No
MR	Monitoring, Regular	Volatile Organic Chemicals	o-Dichlorobenzene	18357162968	Returned to Compliance	01-OCT-2018	31-DEC-2018	No
MR	Monitoring, Regular	Volatile Organic Chemicals	DICHLOROMETHANE	18357162964	Returned to Compliance	01-OCT-2018	31-DEC-2018	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Styrene	18357162996	Returned to Compliance	01-OCT-2018	31-DEC-2018	No
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	2088618	Returned to Compliance	01-DEC-2016	31-DEC-2016	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	1640113	Returned to Compliance	01-JUL-2016	-	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	1435948	Returned to Compliance	01-JUL-2014	-	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	1333803	Returned to Compliance	01-JUL-2013	-	No
MR	Monitoring, Regular	Inorganic Chemicals	Nickel	10334191036	Returned to Compliance	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Inorganic Chemicals	Mercury	10334191035	Returned to Compliance	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Inorganic Chemicals	CYANIDE	10334191024	Returned to Compliance	01-JAN-2008	31-DEC-2010	No

1 - 50 of 76

Enforcement Actions

Latest Enforcement ID	Associated To Violation ID	Enforcement Action Type Code	Enforcement Action Description	Enforcement Date	Originator Description	Enforcement Comment
3158791ENF	2458791	SOX	State Compliance achieved	09-APR-2025	State	-
2667077ENF	2667077	SOX	State Compliance achieved	14-DEC-2022	State	-
2663998ENF	2663998	SOX	State Compliance achieved	14-DEC-2022	State	-
2350486ENF	18357162983	SOX	State Compliance achieved	01-APR-2019	State	-
2350486ENF	19504862996	SOX	State Compliance achieved	01-APR-2019	State	-
2350486ENF	19504862992	SOX	State Compliance achieved	01-APR-2019	State	-
2350486ENF	19504862991	SOX	State Compliance achieved	01-APR-2019	State	-
2350486ENF	19504862990	SOX	State Compliance achieved	01-APR-2019	State	-
2350486ENF	19504862989	SOX	State Compliance achieved	01-APR-2019	State	-
2350486ENF	19504862987	SOX	State Compliance achieved	01-APR-2019	State	-
2350486ENF	19504862985	SOX	State Compliance achieved	01-APR-2019	State	-
2350486ENF	19504862984	SOX	State Compliance achieved	01-APR-2019	State	-
2350486ENF	19504862983	SOX	State Compliance achieved	01-APR-2019	State	-
2350486ENF	19504862982	SOX	State Compliance achieved	01-APR-2019	State	-
2350486ENF	19504862981	SOX	State Compliance achieved	01-APR-2019	State	-
2350486ENF	19504862980	SOX	State Compliance achieved	01-APR-2019	State	-
2350486ENF	19504862979	SOX	State Compliance achieved	01-APR-2019	State	-
2350486ENF	19504862977	SOX	State Compliance achieved	01-APR-2019	State	-
2350486ENF	19504862976	SOX	State Compliance achieved	01-APR-2019	State	-
2350486ENF	19504862969	SOX	State Compliance achieved	01-APR-2019	State	-
2350486ENF	19504862968	SOX	State Compliance achieved	01-APR-2019	State	-
2350486ENF	19504862964	SOX	State Compliance achieved	01-APR-2019	State	-
2350486ENF	19504862380	SOX	State Compliance achieved	01-APR-2019	State	-
2350486ENF	18357162378	SOX	State Compliance achieved	01-APR-2019	State	-
2350486ENF	18357162380	SOX	State Compliance achieved	01-APR-2019	State	-
2350486ENF	18357162964	SOX	State Compliance achieved	01-APR-2019	State	-
2350486ENF	18357162968	SOX	State Compliance achieved	01-APR-2019	State	-
2350486ENF	18357162969	SOX	State Compliance achieved	01-APR-2019	State	-
2350486ENF	18357162976	SOX	State Compliance achieved	01-APR-2019	State	-
2350486ENF	18357162977	SOX	State Compliance achieved	01-APR-2019	State	-
2350486ENF	18357162979	SOX	State Compliance achieved	01-APR-2019	State	-
2350486ENF	18357162980	SOX	State Compliance achieved	01-APR-2019	State	-
2350486ENF	18357162981	SOX	State Compliance achieved	01-APR-2019	State	-
2350486ENF	18357162982	SOX	State Compliance achieved	01-APR-2019	State	-
2350486ENF	18357162984	SOX	State Compliance achieved	01-APR-2019	State	-
2350486ENF	18357162985	SOX	State Compliance achieved	01-APR-2019	State	-
2350486ENF	18357162987	SOX	State Compliance achieved	01-APR-2019	State	-
2350486ENF	18357162989	SOX	State Compliance achieved	01-APR-2019	State	-
2350486ENF	18357162990	SOX	State Compliance achieved	01-APR-2019	State	-
2350486ENF	18357162991	SOX	State Compliance achieved	01-APR-2019	State	-
2350486ENF	18357162992	SOX	State Compliance achieved	01-APR-2019	State	-
2350486ENF	18357162996	SOX	State Compliance achieved	01-APR-2019	State	-
2350486ENF	19504862378	SOX	State Compliance achieved	01-APR-2019	State	-
2088618ENF	2088618	SOX	State Compliance achieved	23-JAN-2017	State	-
40113ENF	1640113	SOX	State Compliance achieved	21-OCT-2016	State	-
35948ENF	1435948	SOX	State Compliance achieved	23-OCT-2014	State	-
33803ENF	1333803	SOX	State Compliance achieved	16-OCT-2013	State	-
833419ENF	10334191074	SOX	State Compliance achieved	16-JUN-2011	State	-
833419ENF	10334191005	SOX	State Compliance achieved	16-JUN-2011	State	-
833419ENF	10334191010	SOX	State Compliance achieved	16-JUN-2011	State	-

1 - 50 of 63

All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
Well #1 - AGJ116	22343	Yes	Well	Ground water	Emergency	Inactive
Well #4 - BKG070	33512	Yes	Well	Ground water	Permanent	Active
Well #3 - BKG069	33511	Yes	Well	Ground water	Permanent	Active
WF/S01,S02	22345	Yes	Well	Ground water	Emergency	Inactive
Well #2 - AGJ117	22344	Yes	Well	Ground water	Emergency	Inactive
WF/S01, S02	4817	No	Treatment Plant	-	-	Active
Well #3 - Disinfection	5425	No	Treatment Plant	-	-	Active
Well #4 - Disinfection	5435	No	Treatment Plant	-	-	Active

1 - 8 of 8

Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
WF/S01, S02	4817	Hypochlorination, Post	Disinfection
Well #3 - Disinfection	5425	Hypochlorination, Post	Disinfection
Well #4 - Disinfection	5435	Hypochlorination, Post	Disinfection

1 - 3 of 3

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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