Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	WA5374270
PWS Name	ROSARIO
PWS Type	Community water system
Owner Type	Private
Primary Source	Surface water
Primacy Type	State
Is Wholesaler?	Yes
Population Served	1031
County Served	San Juan

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	Inorganic Chemicals	Asbestos	1210531	Returned to Compliance	01-OCT-2010	31-DEC-2010	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	1193880	Returned to Compliance	01-JUL-2010	31-JUL-2010	No
MR	Monitoring, Regular	Inorganic Chemicals	Asbestos	1186559	Returned to Compliance	01-JUL-2010	30-SEP-2010	No
TT	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Surface Water Treatment Rule	1193092	Returned to Compliance	01-JUN-2010	-	Yes
TT	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Surface Water Treatment Rule	950363	Known	01-OCT-2008	31-OCT-2008	Yes
TT	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Surface Water Treatment Rule	500436	Known	01-JUN-2005	30-JUN-2005	Yes
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1-Dichloroethylene	04801022977	Returned to Compliance	01-JAN-2004	31-DEC-2004	No
MR	Monitoring, Regular	Volatile Organic Chemicals	cis-1,2-Dichloroethylene	04801022380	Returned to Compliance	01-JAN-2004	31-DEC-2004	No
MR	Monitoring, Regular	Volatile Organic Chemicals	DICHLOROMETHANE	04801022964	Returned to Compliance	01-JAN-2004	31-DEC-2004	No
MR	Monitoring, Regular	Volatile Organic Chemicals	o-Dichlorobenzene	04801022968	Returned to Compliance	01-JAN-2004	31-DEC-2004	No
MR	Monitoring, Regular	Volatile Organic Chemicals	p-Dichlorobenzene	04801022969	Returned to Compliance	01-JAN-2004	31-DEC-2004	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Vinyl chloride	04801022976	Returned to Compliance	01-JAN-2004	31-DEC-2004	No
MR	Monitoring, Regular	Volatile Organic Chemicals	trans-1,2-Dichloroethylene	04801022979	Returned to Compliance	01-JAN-2004	31-DEC-2004	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloroethane	04801022980	Returned to Compliance	01-JAN-2004	31-DEC-2004	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,1-Trichloroethane	04801022981	Returned to Compliance	01-JAN-2004	31-DEC-2004	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Carbon tetrachloride	04801022982	Returned to Compliance	01-JAN-2004	31-DEC-2004	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloropropane	04801022983	Returned to Compliance	01-JAN-2004	31-DEC-2004	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Trichloroethylene	04801022984	Returned to Compliance	01-JAN-2004	31-DEC-2004	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,2-Trichloroethane	04801022985	Returned to Compliance	01-JAN-2004	31-DEC-2004	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Tetrachloroethylene	04801022987	Returned to Compliance	01-JAN-2004	31-DEC-2004	No
MR	Monitoring, Regular	Volatile Organic Chemicals	CHLOROBENZENE	04801022989	Returned to Compliance	01-JAN-2004	31-DEC-2004	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Benzene	04801022990	Returned to Compliance	01-JAN-2004	31-DEC-2004	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Toluene	04801022991	Returned to Compliance	01-JAN-2004	31-DEC-2004	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Ethylbenzene	04801022992	Returned to Compliance	01-JAN-2004	31-DEC-2004	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Styrene	04801022996	Returned to Compliance	01-JAN-2004	31-DEC-2004	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2,4-Trichlorobenzene	04801022378	Returned to Compliance	01-JAN-2004	31-DEC-2004	No
TT	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Surface Water Treatment Rule	0000031	Known	01-JUN-2000	30-JUN-2000	Yes
TT	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Surface Water Treatment Rule	9900042	Known	01-AUG-1999	01-SEP-1999	Yes
TT	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Surface Water Treatment Rule	9900041	Known	01-JUL-1999	01-AUG-1999	Yes
TT	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Surface Water Treatment Rule	9900021	Known	01-JAN-1999	31-JAN-1999	Yes
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	94V0001	Known	01-SEP-1994	30-SEP-1994	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	94V0002	Known	01-AUG-1994	31-AUG-1994	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	94V0003	Known	01-JUL-1994	31-JUL-1994	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	94V0004	Known	01-JUN-1994	30-JUN-1994	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	94V0005	Known	01-MAY-1994	31-MAY-1994	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	94V0006	Known	01-APR-1994	30-APR-1994	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	94V0007	Known	01-MAR-1994	31-MAR-1994	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	94V0008	Known	01-FEB-1994	28-FEB-1994	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	94V0009	Known	01-JAN-1994	31-JAN-1994	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	9201362	Known	01-MAY-1992	31-MAY-1992	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	9201442	Known	01-FEB-1992	29-FEB-1992	No
MR	Monitoring, Regular	Inorganic Chemicals	Barium	8061631	Known	01-OCT-1979	31-OCT-1979	No
MR	Monitoring, Regular	Inorganic Chemicals	Chromium	8061633	Known	01-OCT-1979	31-OCT-1979	No
MR	Monitoring, Regular	Inorganic Chemicals	Selenium	8061638	Known	01-OCT-1979	31-OCT-1979	No
MR	Monitoring, Regular	Nitrate Rule	Nitrate	8061637	Known	01-OCT-1979	31-OCT-1979	No
MR	Monitoring, Regular	Inorganic Chemicals	Mercury	8061636	Known	01-OCT-1979	31-OCT-1979	No
MR	Monitoring, Regular	Inorganic Chemicals	Fluoride	8061634	Known	01-OCT-1979	31-OCT-1979	No
MR	Monitoring, Regular	Arsenic Rule	Arsenic	8061630	Known	01-OCT-1979	31-OCT-1979	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	8051297	Known	01-OCT-1979	31-OCT-1979	No
MR	Monitoring, Regular	Inorganic Chemicals	Cadmium	8061632	Known	01-OCT-1979	31-OCT-1979	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
1210531ENF	1186559	SOX	State Compliance achieved	13-AUG-2013	State	-
1210531ENF	1210531	SOX	State Compliance achieved	13-AUG-2013	State	-
1193880ENF	1193880	SOX	State Compliance achieved	31-AUG-2010	State	-
1193092ENF	1193092	SOX	State Compliance achieved	02-AUG-2010	State	-
12309	950363	SIA	State Violation/Reminder Notice	10-NOV-2008	State	-
6019	500436	SIA	State Violation/Reminder Notice	05-AUG-2005	State	-
CM413	04801022969	SOX	State Compliance achieved	12-JUL-2005	State	-
CM413	04801022996	SOX	State Compliance achieved	12-JUL-2005	State	-
CM413	04801022992	SOX	State Compliance achieved	12-JUL-2005	State	-
CM413	04801022991	SOX	State Compliance achieved	12-JUL-2005	State	-
CM413	04801022990	SOX	State Compliance achieved	12-JUL-2005	State	-
CM413	04801022989	SOX	State Compliance achieved	12-JUL-2005	State	-
CM413	04801022987	SOX	State Compliance achieved	12-JUL-2005	State	-
CM413	04801022985	SOX	State Compliance achieved	12-JUL-2005	State	-
CM413	04801022984	SOX	State Compliance achieved	12-JUL-2005	State	-
CM413	04801022983	SOX	State Compliance achieved	12-JUL-2005	State	-
CM413	04801022982	SOX	State Compliance achieved	12-JUL-2005	State	-
CM413	04801022981	SOX	State Compliance achieved	12-JUL-2005	State	-
CM413	04801022378	SOX	State Compliance achieved	12-JUL-2005	State	-
CM413	04801022380	SOX	State Compliance achieved	12-JUL-2005	State	-
CM413	04801022964	SOX	State Compliance achieved	12-JUL-2005	State	-
CM413	04801022968	SOX	State Compliance achieved	12-JUL-2005	State	-
CM413	04801022976	SOX	State Compliance achieved	12-JUL-2005	State	-
CM413	04801022977	SOX	State Compliance achieved	12-JUL-2005	State	-
CM413	04801022979	SOX	State Compliance achieved	12-JUL-2005	State	-
CM413	04801022980	SOX	State Compliance achieved	12-JUL-2005	State	-
0000001	9900042	SFM	State Administrative Penalty assessed	30-MAY-2000	State	-
0000001	9900041	SFM	State Administrative Penalty assessed	30-MAY-2000	State	-
9440153	94V0002	EFJ	Federal issued Formal Notice of Violation	23-AUG-1994	ODSWeb	-
9440153	94V0003	EFJ	Federal issued Formal Notice of Violation	23-AUG-1994	ODSWeb	-
9440153	94V0004	EFJ	Federal issued Formal Notice of Violation	23-AUG-1994	ODSWeb	-
9440153	94V0006	EFJ	Federal issued Formal Notice of Violation	23-AUG-1994	ODSWeb	-
9440153	94V0009	EFJ	Federal issued Formal Notice of Violation	23-AUG-1994	ODSWeb	-
9440153	94V0008	EFJ	Federal issued Formal Notice of Violation	23-AUG-1994	ODSWeb	-
9440153	94V0007	EFJ	Federal issued Formal Notice of Violation	23-AUG-1994	ODSWeb	-
9440153	9201442	EFJ	Federal issued Formal Notice of Violation	23-AUG-1994	ODSWeb	-
9440153	9201362	EFJ	Federal issued Formal Notice of Violation	23-AUG-1994	ODSWeb	-
9440153	94V0005	EFJ	Federal issued Formal Notice of Violation	23-AUG-1994	ODSWeb	-

1 - 38 of 38

All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
CASCADE LAKE	23308	Yes	Intake	Surface water	Permanent	Active
CASCADE LAKE	1696	No	Treatment Plant	-	-	Active

1 - 2 of 2

Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
CASCADE LAKE	1696	Hypochlorination, Post	Disinfection
CASCADE LAKE	1696	Ozonation, Pre	Disinfection
CASCADE LAKE	1696	Coagulation	Particulate removal
CASCADE LAKE	1696	Flocculation	Particulate removal
CASCADE LAKE	1696	Sedimentation	Particulate removal
CASCADE LAKE	1696	Filtration, Rapid Sand	Particulate removal
CASCADE LAKE	1696	Rapid Mix	Particulate removal

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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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