Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	090600158
PWS Name	Viejas Community System
PWS Type	Community water system
Owner Type	Tribal Government
Primary Source	Ground water
Primacy Type	Tribal
Is Wholesaler?	No
Population Served	9600
County Served

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
RPT	Report Sample Result/Fail Monitor (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	06001584B800022026	Returned to Compliance	01-FEB-2026	-	No
RPT	Report Sample Result/Fail Monitor (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	06001584B8000122025	Returned to Compliance	01-DEC-2025	-	No
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	0600158223100122008	Returned to Compliance	01-DEC-2008	31-DEC-2008	Yes
MR	Monitoring, Routine Minor (TCR)	Total Coliform Rule	Coliform (TCR)	060015824310052007	Returned to Compliance	01-MAY-2007	31-MAY-2007	No
MR	Monitoring, Regular	Nitrate Rule	Nitrate	060015803104012007	Returned to Compliance	01-JAN-2007	31-DEC-2007	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	060015827245612007	Returned to Compliance	01-JAN-2007	31-DEC-2007	No
MR	Monitoring, Regular	Inorganic Chemicals	Thallium, Total	060015803108512005	Returned to Compliance	01-JAN-2005	31-DEC-2007	No
MR	Monitoring, Regular	Arsenic Rule	Arsenic	060015803100512005	Returned to Compliance	01-JAN-2005	31-DEC-2007	No
MR	Monitoring, Regular	Inorganic Chemicals	Barium	060015803101012005	Returned to Compliance	01-JAN-2005	31-DEC-2007	No
MR	Monitoring, Regular	Inorganic Chemicals	Beryllium, Total	060015803107512005	Returned to Compliance	01-JAN-2005	31-DEC-2007	No
MR	Monitoring, Regular	Inorganic Chemicals	Selenium	060015803104512005	Returned to Compliance	01-JAN-2005	31-DEC-2007	No
MR	Monitoring, Regular	Inorganic Chemicals	Mercury	060015803103512005	Returned to Compliance	01-JAN-2005	31-DEC-2007	No
MR	Monitoring, Regular	Inorganic Chemicals	Fluoride	060015803102512005	Returned to Compliance	01-JAN-2005	31-DEC-2007	No
MR	Monitoring, Regular	Inorganic Chemicals	CYANIDE	060015803102412005	Returned to Compliance	01-JAN-2005	31-DEC-2007	No
MR	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	Lead and Copper Rule	060015852500012005	Returned to Compliance	01-JAN-2005	-	No
MR	Monitoring, Regular	Inorganic Chemicals	Chromium	060015803102012005	Returned to Compliance	01-JAN-2005	31-DEC-2007	No
MR	Monitoring, Regular	Inorganic Chemicals	Cadmium	060015803101512005	Returned to Compliance	01-JAN-2005	31-DEC-2007	No
MR	Monitoring, Routine Minor (TCR)	Total Coliform Rule	Coliform (TCR)	0600158243100102004	Returned to Compliance	01-OCT-2004	31-OCT-2004	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2,4-Trichlorobenzene	060015803237812004	Returned to Compliance	01-JAN-2004	31-DEC-2004	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Xylenes, Total	060015803295512004	Returned to Compliance	01-JAN-2004	31-DEC-2004	No
MR	Monitoring, Regular	Volatile Organic Chemicals	DICHLOROMETHANE	060015803296412004	Returned to Compliance	01-JAN-2004	31-DEC-2004	No
MR	Monitoring, Regular	Volatile Organic Chemicals	o-Dichlorobenzene	060015803296812004	Returned to Compliance	01-JAN-2004	31-DEC-2004	No
MR	Monitoring, Regular	Volatile Organic Chemicals	p-Dichlorobenzene	060015803296912004	Returned to Compliance	01-JAN-2004	31-DEC-2004	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Vinyl chloride	060015803297612004	Returned to Compliance	01-JAN-2004	31-DEC-2004	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1-Dichloroethylene	060015803297712004	Returned to Compliance	01-JAN-2004	31-DEC-2004	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	060015803400012004	Returned to Compliance	01-JAN-2004	31-DEC-2004	No
MR	Monitoring, Regular	Inorganic Chemicals	Thallium, Total	060015803108512004	Returned to Compliance	01-JAN-2004	31-DEC-2004	No
MR	Monitoring, Regular	Inorganic Chemicals	Beryllium, Total	060015803107512004	Returned to Compliance	01-JAN-2004	31-DEC-2004	No
MR	Monitoring, Regular	Inorganic Chemicals	Antimony, Total	060015803107412004	Returned to Compliance	01-JAN-2004	31-DEC-2004	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	ETHYLENE DIBROMIDE	060015803294612004	Returned to Compliance	01-JAN-2004	31-DEC-2004	No
MR	Monitoring, Regular	Volatile Organic Chemicals	cis-1,2-Dichloroethylene	060015803238012004	Returned to Compliance	01-JAN-2004	31-DEC-2004	No
MR	Monitoring, Regular	Nitrate Rule	Nitrate	060015803104012004	Returned to Compliance	01-JAN-2004	31-DEC-2004	No
MR	Monitoring, Regular	Inorganic Chemicals	CYANIDE	060015803102412004	Returned to Compliance	01-JAN-2004	31-DEC-2004	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Ethylbenzene	060015803299212004	Returned to Compliance	01-JAN-2004	31-DEC-2004	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Toluene	060015803299112004	Returned to Compliance	01-JAN-2004	31-DEC-2004	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Benzene	060015803299012004	Returned to Compliance	01-JAN-2004	31-DEC-2004	No
MR	Monitoring, Regular	Volatile Organic Chemicals	CHLOROBENZENE	060015803298912004	Returned to Compliance	01-JAN-2004	31-DEC-2004	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Tetrachloroethylene	060015803298712004	Returned to Compliance	01-JAN-2004	31-DEC-2004	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,2-Trichloroethane	060015803298512004	Returned to Compliance	01-JAN-2004	31-DEC-2004	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Trichloroethylene	060015803298412004	Returned to Compliance	01-JAN-2004	31-DEC-2004	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloropropane	060015803298312004	Returned to Compliance	01-JAN-2004	31-DEC-2004	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Carbon tetrachloride	060015803298212004	Returned to Compliance	01-JAN-2004	31-DEC-2004	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,1-Trichloroethane	060015803298112004	Returned to Compliance	01-JAN-2004	31-DEC-2004	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloroethane	060015803298012004	Returned to Compliance	01-JAN-2004	31-DEC-2004	No
MR	Monitoring, Regular	Volatile Organic Chemicals	trans-1,2-Dichloroethylene	060015803297912004	Returned to Compliance	01-JAN-2004	31-DEC-2004	No
MR	Monitoring, Routine Minor (TCR)	Total Coliform Rule	Coliform (TCR)	0600158243100112003	Returned to Compliance	01-NOV-2003	30-NOV-2003	No
MR	Monitoring, Regular	Nitrate Rule	Nitrate	060015803104012003	Returned to Compliance	01-JAN-2003	31-DEC-2003	No
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	0600158223100122002	Returned to Compliance	01-DEC-2002	31-DEC-2002	Yes
MR	Monitoring, Repeat Minor (TCR)	Total Coliform Rule	Coliform (TCR)	060015826310092002	Returned to Compliance	01-SEP-2002	30-SEP-2002	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	060015871700072001	Returned to Compliance	01-JUL-2001	-	No

1 - 50 of 145

Enforcement Actions

Latest Enforcement ID	Associated To Violation ID	Enforcement Action Type Code	Enforcement Action Description	Enforcement Date	Originator Description	Enforcement Comment
0600158IA06252612570	06001584B800022026	EIA	Federal Violation/Reminder Notice	25-JUN-2026	Region	Informal Violation Report, look for SDWIS-Fed compliance rate after this action to determine change in behavior.
0600158IA04012612508	06001584B8000122025	EIA	Federal Violation/Reminder Notice	01-APR-2026	Region	Informal Violation Report, look for SDWIS-Fed compliance rate after this action to determine change in behavior.
0600158OX01211043129	0600158223100122008	EOX	Federal Compliance achieved	21-JAN-2010	Region	-
0600158OX01070936967	060015803100512005	EOX	Federal Compliance achieved	07-JAN-2009	Region	-
0600158OX01070937011	060015803101012005	EOX	Federal Compliance achieved	07-JAN-2009	Region	-
0600158OX01070936984	060015803101512005	EOX	Federal Compliance achieved	07-JAN-2009	Region	-
0600158OX01070936930	060015803102012005	EOX	Federal Compliance achieved	07-JAN-2009	Region	-
0600158OX01070936972	060015803102412004	EOX	Federal Compliance achieved	07-JAN-2009	Region	-
0600158OX01070936929	060015803102412005	EOX	Federal Compliance achieved	07-JAN-2009	Region	-
0600158OX01070937029	060015803102512005	EOX	Federal Compliance achieved	07-JAN-2009	Region	-
0600158OX01070936973	060015803103512005	EOX	Federal Compliance achieved	07-JAN-2009	Region	-
0600158OX01070936957	060015803104012007	EOX	Federal Compliance achieved	07-JAN-2009	Region	-
0600158OX01070936876	060015803104512005	EOX	Federal Compliance achieved	07-JAN-2009	Region	-
0600158OX01070937032	060015803107412004	EOX	Federal Compliance achieved	07-JAN-2009	Region	-
0600158OX01070936886	060015803107512004	EOX	Federal Compliance achieved	07-JAN-2009	Region	-
0600158OX01070936987	060015803107512005	EOX	Federal Compliance achieved	07-JAN-2009	Region	-
0600158OX01070936977	060015803108512004	EOX	Federal Compliance achieved	07-JAN-2009	Region	-
0600158OX01070936883	060015803108512005	EOX	Federal Compliance achieved	07-JAN-2009	Region	-
0600158OX01070937026	060015803237812004	EOX	Federal Compliance achieved	07-JAN-2009	Region	-
0600158OX01070936943	060015803238012004	EOX	Federal Compliance achieved	07-JAN-2009	Region	-
0600158OX01070936980	060015803294612004	EOX	Federal Compliance achieved	07-JAN-2009	Region	-
0600158OX01070936931	060015803295512004	EOX	Federal Compliance achieved	07-JAN-2009	Region	-
0600158OX01070936888	060015803296412004	EOX	Federal Compliance achieved	07-JAN-2009	Region	-
0600158OX01070936941	060015803296812004	EOX	Federal Compliance achieved	07-JAN-2009	Region	-
0600158OX01070936976	060015803296912004	EOX	Federal Compliance achieved	07-JAN-2009	Region	-
0600158OX01070937038	060015803297612004	EOX	Federal Compliance achieved	07-JAN-2009	Region	-
0600158OX01070936988	060015803297712004	EOX	Federal Compliance achieved	07-JAN-2009	Region	-
0600158OX01070937005	060015803297912004	EOX	Federal Compliance achieved	07-JAN-2009	Region	-
0600158OX01070936927	060015803298012004	EOX	Federal Compliance achieved	07-JAN-2009	Region	-
0600158OX01070936919	060015803298112004	EOX	Federal Compliance achieved	07-JAN-2009	Region	-
0600158OX01070937033	060015803298212004	EOX	Federal Compliance achieved	07-JAN-2009	Region	-
0600158OX01070936885	060015803298312004	EOX	Federal Compliance achieved	07-JAN-2009	Region	-
0600158OX01070936952	060015803298412004	EOX	Federal Compliance achieved	07-JAN-2009	Region	-
0600158OX01070936994	060015803298512004	EOX	Federal Compliance achieved	07-JAN-2009	Region	-
0600158OX01070936891	060015803298712004	EOX	Federal Compliance achieved	07-JAN-2009	Region	-
0600158OX01070936878	060015803298912004	EOX	Federal Compliance achieved	07-JAN-2009	Region	-
0600158OX01070936958	060015803299012004	EOX	Federal Compliance achieved	07-JAN-2009	Region	-
0600158OX01070936877	060015803299112004	EOX	Federal Compliance achieved	07-JAN-2009	Region	-
0600158OX01070936995	060015803299212004	EOX	Federal Compliance achieved	07-JAN-2009	Region	-
0600158OX01070936887	060015803400012004	EOX	Federal Compliance achieved	07-JAN-2009	Region	-
0600158OX01070936933	060015824310052007	EOX	Federal Compliance achieved	07-JAN-2009	Region	-
0600158OX01070937009	060015827245612007	EOX	Federal Compliance achieved	07-JAN-2009	Region	-
0600158OX01070936993	060015852500012005	EOX	Federal Compliance achieved	07-JAN-2009	Region	-
0600158OX01070936932	0600158243100102004	EOX	Federal Compliance achieved	07-JAN-2009	Region	-
0600158OX01070936917	0600158243100112003	EOX	Federal Compliance achieved	07-JAN-2009	Region	-
0600158OX03140510461	060015803104012004	EOX	Federal Compliance achieved	14-MAR-2005	Region	-
0600158OX0210058095	060015803297611996	EOX	Federal Compliance achieved	10-FEB-2005	Region	-
0600158OX0210058080	060015803297711996	EOX	Federal Compliance achieved	10-FEB-2005	Region	-
0600158OX0210058101	060015803297911996	EOX	Federal Compliance achieved	10-FEB-2005	Region	-
0600158OX0210058077	060015803298011996	EOX	Federal Compliance achieved	10-FEB-2005	Region	-

1 - 50 of 145

All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
Well 2	0600158GW003	Yes	Well	Ground water	Other	Inactive
Well 8	0600158GW011	Yes	Well	Ground water	Permanent	Active
Well 5A	0600158GW008	Yes	Well	Ground water	Permanent	Active
Well 2B	0600158GW005	Yes	Well	Ground water	Permanent	Active
Well 2A	0600158GW004	Yes	Well	Ground water	Permanent	Active
Well 1A	0600158GW002	Yes	Well	Ground water	Permanent	Active
Well 1	0600158GW001	Yes	Well	Ground water	Permanent	Active
Well 11	0600158GW013	Yes	Well	Ground water	Other	Inactive
Well 10	0600158GW012	Yes	Well	Ground water	Other	Inactive
Well 7	0600158GW010	Yes	Well	Ground water	Other	Inactive
Well 6	0600158GW009	Yes	Well	Ground water	Other	Inactive
Well 5	0600158GW007	Yes	Well	Ground water	Other	Inactive
Well 3	0600158GW006	Yes	Well	Ground water	Other	Inactive
Entry Point for Well 2B	0600158EP005	No	Common Headers	-	-	Active
Entry Point for Well 1A, 2A, 5A, and 8	0600158EP008	No	Common Headers	-	-	Active
Entry Point for Well 1	0600158EP001	No	Common Headers	-	-	Inactive
Entry Point for Well 1A	0600158EP002	No	Common Headers	-	-	Inactive
Entry Point for Well 2	0600158EP003	No	Common Headers	-	-	Inactive
Entry point for Well 2A	0600158EP004	No	Common Headers	-	-	Inactive
Entry Point forWell 6	0600158EP006	No	Common Headers	-	-	Inactive
Entry Point for Well 5	0600158EP007	No	Common Headers	-	-	Inactive
Entry Point for Well 7	0600158EP009	No	Common Headers	-	-	Inactive
Entry point for Well 8	0600158EP010	No	Common Headers	-	-	Inactive
Entry Pt. for Well 10	0600158EP011	No	Common Headers	-	-	Inactive
Entry Point for Well 11 (GW0013)	0600158EP012	No	Common Headers	-	-	Inactive
PWS# 0600158 distribution system	0600158DS001	No	Distribution System/Zone	-	-	Active
Common Header for Well 1, 1A, 2A, 5A and 8	0600158CH001	No	Other	-	-	Active
Storage Tank NT1	0600158ST001	No	Storage	-	-	Active
Storage Tank NT2	0600158ST002	No	Storage	-	-	Active
East Storage Tank	0600158ST003	No	Storage	-	-	Active
West Storage Tank	0600158ST004	No	Storage	-	-	Active
West Storage Tank	0600158ST006	No	Storage	-	-	Active
West Storage Tank 2 (New)	0600158ST007	No	Storage	-	-	Active
Treatment for Well 1A	0600158TP001	No	Treatment Plant	-	-	Active
Treatment for Well 2A	0600158TP002	No	Treatment Plant	-	-	Active
Treatment for Well 2B	0600158TP003	No	Treatment Plant	-	-	Active
Treatment for Well 5A	0600158TP004	No	Treatment Plant	-	-	Active
Treatment for Well 8	0600158TP007	No	Treatment Plant	-	-	Active
Treatment Plant for Well 1	0600158TP009	No	Treatment Plant	-	-	Active
Treatment for Well 11	0600158TP010	No	Treatment Plant	-	-	Active
Treatment for Well 7	0600158TP005	No	Treatment Plant	-	-	Inactive
Treatment for Wells 6	0600158TP006	No	Treatment Plant	-	-	Inactive
Treatment for Well 10	0600158TP008	No	Treatment Plant	-	-	Inactive

1 - 43 of 43

Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
Treatment for Well 1A	0600158TP001	Hypochlorination, Post	Disinfection
Treatment for Well 2A	0600158TP002	Hypochlorination, Post	Disinfection
Treatment for Well 2B	0600158TP003	Filtration, Greensand	Iron removal
Treatment for Well 2B	0600158TP003	Hypochlorination, Pre	Disinfection
Treatment for Well 2B	0600158TP003	Filtration, Greensand	Manganese removal
Treatment for Well 5A	0600158TP004	Filtration, Greensand	Iron removal
Treatment for Well 5A	0600158TP004	Hypochlorination, Pre	Disinfection
Treatment for Well 5A	0600158TP004	Filtration, Greensand	Manganese removal
Treatment for Well 5A	0600158TP004	Ion Exchange	Radionuclides removal
Treatment for Well 7	0600158TP005	Hypochlorination, Post	Disinfection
Treatment for Wells 6	0600158TP006	Hypochlorination, Post	Disinfection
Treatment for Well 8	0600158TP007	Hypochlorination, Post	Disinfection
Treatment for Well 10	0600158TP008	Hypochlorination, Post	Disinfection
Treatment Plant for Well 1	0600158TP009	Hypochlorination, Post	Disinfection
Treatment for Well 11	0600158TP010	Hypochlorination, Post	Disinfection

1 - 15 of 15

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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