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PWS ID	WA5320200
PWS Name	DUCK LAKE WATER ASSOCIATION
PWS Type	Community water system
Owner Type	Private
Primary Source	Ground water
Primacy Type	State
Is Wholesaler?	No
Population Served	635
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	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	Lead and Copper Rule	1629072	Returned to Compliance	01-JAN-2014	-	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1-Dichloroethylene	11139542977	Returned to Compliance	01-APR-2011	30-JUN-2011	No
MR	Monitoring, Regular	Volatile Organic Chemicals	o-Dichlorobenzene	11139542968	Returned to Compliance	01-APR-2011	30-JUN-2011	No
MR	Monitoring, Regular	Volatile Organic Chemicals	p-Dichlorobenzene	11139542969	Returned to Compliance	01-APR-2011	30-JUN-2011	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Vinyl chloride	11139542976	Returned to Compliance	01-APR-2011	30-JUN-2011	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2,4-Trichlorobenzene	11139542378	Returned to Compliance	01-APR-2011	30-JUN-2011	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Styrene	11139542996	Returned to Compliance	01-APR-2011	30-JUN-2011	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Ethylbenzene	11139542992	Returned to Compliance	01-APR-2011	30-JUN-2011	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Toluene	11139542991	Returned to Compliance	01-APR-2011	30-JUN-2011	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Benzene	11139542990	Returned to Compliance	01-APR-2011	30-JUN-2011	No
MR	Monitoring, Regular	Volatile Organic Chemicals	CHLOROBENZENE	11139542989	Returned to Compliance	01-APR-2011	30-JUN-2011	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Tetrachloroethylene	11139542987	Returned to Compliance	01-APR-2011	30-JUN-2011	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,2-Trichloroethane	11139542985	Returned to Compliance	01-APR-2011	30-JUN-2011	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Trichloroethylene	11139542984	Returned to Compliance	01-APR-2011	30-JUN-2011	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloropropane	11139542983	Returned to Compliance	01-APR-2011	30-JUN-2011	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Carbon tetrachloride	11139542982	Returned to Compliance	01-APR-2011	30-JUN-2011	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,1-Trichloroethane	11139542981	Returned to Compliance	01-APR-2011	30-JUN-2011	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloroethane	11139542980	Returned to Compliance	01-APR-2011	30-JUN-2011	No
MR	Monitoring, Regular	Volatile Organic Chemicals	trans-1,2-Dichloroethylene	11139542979	Returned to Compliance	01-APR-2011	30-JUN-2011	No
MR	Monitoring, Regular	Volatile Organic Chemicals	cis-1,2-Dichloroethylene	11139542380	Returned to Compliance	01-APR-2011	30-JUN-2011	No
MR	Monitoring, Regular	Volatile Organic Chemicals	DICHLOROMETHANE	11139542964	Returned to Compliance	01-APR-2011	30-JUN-2011	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Aldicarb sulfoxide	10441712043	Known	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	OXAMYL	10441712036	Known	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Aldicarb sulfoxide	10441702043	Known	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Aldicarb sulfone	10441702044	Known	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Aldicarb sulfone	10441712044	Known	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	OXAMYL	10441702036	Known	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Aldicarb	10441712047	Known	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Aldicarb	10441702047	Known	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Carbofuran	10441702046	Known	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Carbofuran	10441712046	Known	01-JAN-2008	31-DEC-2010	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
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	9951472	Known	01-AUG-1999	31-AUG-1999	Yes
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	9751248	Known	01-MAY-1997	31-MAY-1997	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	9575213	Known	01-SEP-1995	30-SEP-1995	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	9500217	Known	19-OCT-1994	18-NOV-1994	No
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	9376127	Known	01-SEP-1993	30-SEP-1993	Yes
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	9376126	Known	01-AUG-1993	31-AUG-1993	Yes
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	9375300	Known	01-JUL-1993	31-JUL-1993	No
MR	Monitoring, Routine Minor (TCR)	Total Coliform Rule	Coliform (TCR)	9200557	Known	01-JUN-1992	30-JUN-1992	No
MR	Monitoring, Repeat Minor (TCR)	Total Coliform Rule	Coliform (TCR)	9200558	Known	01-MAY-1992	31-MAY-1992	No
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	9200559	Known	01-MAY-1992	31-MAY-1992	Yes
MR	Monitoring, Routine Minor (TCR)	Total Coliform Rule	Coliform (TCR)	9200563	Known	01-FEB-1992	29-FEB-1992	No
MR	Monitoring, Repeat Major (TCR)	Total Coliform Rule	Coliform (TCR)	9200564	Known	01-JAN-1992	31-JAN-1992	No
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	9200831	Known	01-OCT-1991	31-OCT-1991	Yes
MR	Monitoring, Repeat Minor (TCR)	Total Coliform Rule	Coliform (TCR)	9200830	Known	01-OCT-1991	31-OCT-1991	No
MR	Monitoring, Regular	Inorganic Chemicals	Chromium	8059853	Known	01-OCT-1979	31-OCT-1979	No
MR	Monitoring, Regular	Inorganic Chemicals	Selenium	8059858	Known	01-OCT-1979	31-OCT-1979	No
MR	Monitoring, Regular	Nitrate Rule	Nitrate	8059857	Known	01-OCT-1979	31-OCT-1979	No
MR	Monitoring, Regular	Inorganic Chemicals	Mercury	8059856	Known	01-OCT-1979	31-OCT-1979	No

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
1629072ENF	1629072	SOX	State Compliance achieved	22-FEB-2017	State	-
1313954ENF	11139542969	SOX	State Compliance achieved	16-AUG-2011	State	-
1313954ENF	11139542996	SOX	State Compliance achieved	16-AUG-2011	State	-
1313954ENF	11139542992	SOX	State Compliance achieved	16-AUG-2011	State	-
1313954ENF	11139542991	SOX	State Compliance achieved	16-AUG-2011	State	-
1313954ENF	11139542990	SOX	State Compliance achieved	16-AUG-2011	State	-
1313954ENF	11139542989	SOX	State Compliance achieved	16-AUG-2011	State	-
1313954ENF	11139542987	SOX	State Compliance achieved	16-AUG-2011	State	-
1313954ENF	11139542985	SOX	State Compliance achieved	16-AUG-2011	State	-
1313954ENF	11139542984	SOX	State Compliance achieved	16-AUG-2011	State	-
1313954ENF	11139542983	SOX	State Compliance achieved	16-AUG-2011	State	-
1313954ENF	11139542982	SOX	State Compliance achieved	16-AUG-2011	State	-
1313954ENF	11139542981	SOX	State Compliance achieved	16-AUG-2011	State	-
1313954ENF	11139542378	SOX	State Compliance achieved	16-AUG-2011	State	-
1313954ENF	11139542380	SOX	State Compliance achieved	16-AUG-2011	State	-
1313954ENF	11139542964	SOX	State Compliance achieved	16-AUG-2011	State	-
1313954ENF	11139542968	SOX	State Compliance achieved	16-AUG-2011	State	-
1313954ENF	11139542976	SOX	State Compliance achieved	16-AUG-2011	State	-
1313954ENF	11139542977	SOX	State Compliance achieved	16-AUG-2011	State	-
1313954ENF	11139542979	SOX	State Compliance achieved	16-AUG-2011	State	-
1313954ENF	11139542980	SOX	State Compliance achieved	16-AUG-2011	State	-
0099999	0099999	EOX	Federal Compliance achieved	31-DEC-1999	ODSWeb	-
9908029	9951472	SIF	State Public Notification received	31-AUG-1999	State	-
9700105	9751248	SIA	State Violation/Reminder Notice	31-MAY-1997	State	-
9530000	9500217	SIA	State Violation/Reminder Notice	19-NOV-1994	State	-
9300088	9376127	SIA	State Violation/Reminder Notice	30-SEP-1993	State	-
9300083	9376126	SIA	State Violation/Reminder Notice	31-AUG-1993	State	-
9300081	9375300	SIA	State Violation/Reminder Notice	31-JUL-1993	State	-
9210095	9200557	SIA	State Violation/Reminder Notice	30-JUN-1992	State	-
9205014	9200559	SIF	State Public Notification received	31-MAY-1992	State	-
9219234	9200558	SIA	State Violation/Reminder Notice	31-MAY-1992	State	-
9218023	9200563	SIA	State Violation/Reminder Notice	29-FEB-1992	State	-
9210013	9200831	SIF	State Public Notification received	31-OCT-1991	State	-

1 - 33 of 33

All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
Well #2 - AAI243	12570	Yes	Well	Ground water	Emergency	Active
Well #1 - AGJ186	12569	Yes	Well	Ground water	Permanent	Active
WF/S01,S03	32118	Yes	Well	Ground water	Permanent	Active
Well #3 - APE514	31609	Yes	Well	Ground water	Seasonal	Active

1 - 4 of 4

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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