Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	CA4310014
PWS Name	CITY OF SUNNYVALE
PWS Type	Community water system
Owner Type	Local government
Primary Source	Surface water purchased
Primacy Type	State
Is Wholesaler?	No
Population Served	157566
County Served	Santa Clara

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
TT	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Surface Water Treatment Rule	9605005	Returned to Compliance	01-MAR-2015	31-MAR-2015	Yes
MR	Monitoring, Regular	Arsenic Rule	Arsenic	9605009	Returned to Compliance	01-JAN-2015	31-DEC-2023	No
MR	Monitoring, Regular	Inorganic Chemicals	Chromium	9605012	Returned to Compliance	01-JAN-2015	31-DEC-2023	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Heptachlor epoxide	9605069	Returned to Compliance	01-JAN-2015	31-DEC-2023	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Heptachlor	9605068	Returned to Compliance	01-JAN-2015	31-DEC-2023	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	2,3,7,8-TCDD	9605067	Returned to Compliance	01-JAN-2015	31-DEC-2023	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	LASSO	9605066	Returned to Compliance	01-JAN-2015	31-DEC-2023	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Atrazine	9605065	Returned to Compliance	01-JAN-2015	31-DEC-2023	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Carbofuran	9605064	Returned to Compliance	01-JAN-2015	31-DEC-2023	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Hexachlorocyclopentadiene	9605063	Returned to Compliance	01-JAN-2015	31-DEC-2023	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Dinoseb	9605062	Returned to Compliance	01-JAN-2015	31-DEC-2023	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Picloram	9605061	Returned to Compliance	01-JAN-2015	31-DEC-2023	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Di(2-ethylhexyl) phthalate	9605060	Returned to Compliance	01-JAN-2015	31-DEC-2023	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Simazine	9605059	Returned to Compliance	01-JAN-2015	31-DEC-2023	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	OXAMYL	9605058	Returned to Compliance	01-JAN-2015	31-DEC-2023	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Di(2-ethylhexyl) adipate	9605057	Returned to Compliance	01-JAN-2015	31-DEC-2023	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Glyphosate	9605056	Returned to Compliance	01-JAN-2015	31-DEC-2023	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Endothall	9605055	Returned to Compliance	01-JAN-2015	31-DEC-2023	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Diquat	9605054	Returned to Compliance	01-JAN-2015	31-DEC-2023	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Dalapon	9605053	Returned to Compliance	01-JAN-2015	31-DEC-2023	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Toxaphene	9605052	Returned to Compliance	01-JAN-2015	31-DEC-2023	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Methoxychlor	9605051	Returned to Compliance	01-JAN-2015	31-DEC-2023	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	BHC-GAMMA	9605050	Returned to Compliance	01-JAN-2015	31-DEC-2023	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Endrin	9605049	Returned to Compliance	01-JAN-2015	31-DEC-2023	No
MR	Monitoring, Regular	Inorganic Chemicals	Thallium, Total	9605019	Returned to Compliance	01-JAN-2015	31-DEC-2023	No
MR	Monitoring, Regular	Inorganic Chemicals	Beryllium, Total	9605018	Returned to Compliance	01-JAN-2015	31-DEC-2023	No
MR	Monitoring, Regular	Inorganic Chemicals	Antimony, Total	9605017	Returned to Compliance	01-JAN-2015	31-DEC-2023	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	ETHYLENE DIBROMIDE	9605077	Returned to Compliance	01-JAN-2015	31-DEC-2023	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	1,2-DIBROMO-3-CHLOROPROPANE	9605076	Returned to Compliance	01-JAN-2015	31-DEC-2023	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Styrene	9605048	Returned to Compliance	01-JAN-2015	31-DEC-2023	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Ethylbenzene	9605047	Returned to Compliance	01-JAN-2015	31-DEC-2023	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Toluene	9605046	Returned to Compliance	01-JAN-2015	31-DEC-2023	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Benzene	9605045	Returned to Compliance	01-JAN-2015	31-DEC-2023	No
MR	Monitoring, Regular	Volatile Organic Chemicals	CHLOROBENZENE	9605044	Returned to Compliance	01-JAN-2015	31-DEC-2023	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Tetrachloroethylene	9605042	Returned to Compliance	01-JAN-2015	31-DEC-2023	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,2-Trichloroethane	9605041	Returned to Compliance	01-JAN-2015	31-DEC-2023	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Trichloroethylene	9605040	Returned to Compliance	01-JAN-2015	31-DEC-2023	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloropropane	9605039	Returned to Compliance	01-JAN-2015	31-DEC-2023	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Carbon tetrachloride	9605038	Returned to Compliance	01-JAN-2015	31-DEC-2023	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,1-Trichloroethane	9605037	Returned to Compliance	01-JAN-2015	31-DEC-2023	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloroethane	9605036	Returned to Compliance	01-JAN-2015	31-DEC-2023	No
MR	Monitoring, Regular	Volatile Organic Chemicals	trans-1,2-Dichloroethylene	9605035	Returned to Compliance	01-JAN-2015	31-DEC-2023	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1-Dichloroethylene	9605033	Returned to Compliance	01-JAN-2015	31-DEC-2023	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Vinyl chloride	9605032	Returned to Compliance	01-JAN-2015	31-DEC-2023	No
MR	Monitoring, Regular	Volatile Organic Chemicals	p-Dichlorobenzene	9605031	Returned to Compliance	01-JAN-2015	31-DEC-2023	No
MR	Monitoring, Regular	Volatile Organic Chemicals	o-Dichlorobenzene	9605030	Returned to Compliance	01-JAN-2015	31-DEC-2023	No
MR	Monitoring, Regular	Volatile Organic Chemicals	DICHLOROMETHANE	9605029	Returned to Compliance	01-JAN-2015	31-DEC-2023	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Chlordane	9605078	Returned to Compliance	01-JAN-2015	31-DEC-2023	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Xylenes, Total	9605028	Returned to Compliance	01-JAN-2015	31-DEC-2023	No
MR	Monitoring, Regular	Inorganic Chemicals	Barium	9605010	Returned to Compliance	01-JAN-2015	31-DEC-2023	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
9917043	9605009	SOX	State Compliance achieved	28-FEB-2024	State	-
9917043	9605010	SOX	State Compliance achieved	28-FEB-2024	State	-
9917043	9605011	SOX	State Compliance achieved	28-FEB-2024	State	-
9917043	9605012	SOX	State Compliance achieved	28-FEB-2024	State	-
9917043	9605013	SOX	State Compliance achieved	28-FEB-2024	State	-
9917043	9605014	SOX	State Compliance achieved	28-FEB-2024	State	-
9917043	9605015	SOX	State Compliance achieved	28-FEB-2024	State	-
9917043	9605016	SOX	State Compliance achieved	28-FEB-2024	State	-
9917043	9605017	SOX	State Compliance achieved	28-FEB-2024	State	-
9917043	9605018	SOX	State Compliance achieved	28-FEB-2024	State	-
9917043	9605019	SOX	State Compliance achieved	28-FEB-2024	State	-
9917043	9605020	SOX	State Compliance achieved	28-FEB-2024	State	-
9917043	9605024	SOX	State Compliance achieved	28-FEB-2024	State	-
9917043	9605025	SOX	State Compliance achieved	28-FEB-2024	State	-
9917043	9605028	SOX	State Compliance achieved	28-FEB-2024	State	-
9917043	9605029	SOX	State Compliance achieved	28-FEB-2024	State	-
9917043	9605030	SOX	State Compliance achieved	28-FEB-2024	State	-
9917043	9605031	SOX	State Compliance achieved	28-FEB-2024	State	-
9917043	9605032	SOX	State Compliance achieved	28-FEB-2024	State	-
9917043	9605033	SOX	State Compliance achieved	28-FEB-2024	State	-
9917043	9605035	SOX	State Compliance achieved	28-FEB-2024	State	-
9917043	9605036	SOX	State Compliance achieved	28-FEB-2024	State	-
9917043	9605037	SOX	State Compliance achieved	28-FEB-2024	State	-
9917043	9605038	SOX	State Compliance achieved	28-FEB-2024	State	-
9917043	9605039	SOX	State Compliance achieved	28-FEB-2024	State	-
9917043	9605040	SOX	State Compliance achieved	28-FEB-2024	State	-
9917043	9605041	SOX	State Compliance achieved	28-FEB-2024	State	-
9917043	9605042	SOX	State Compliance achieved	28-FEB-2024	State	-
9917043	9605044	SOX	State Compliance achieved	28-FEB-2024	State	-
9917043	9605045	SOX	State Compliance achieved	28-FEB-2024	State	-
9917043	9605046	SOX	State Compliance achieved	28-FEB-2024	State	-
9917043	9605047	SOX	State Compliance achieved	28-FEB-2024	State	-
9917043	9605048	SOX	State Compliance achieved	28-FEB-2024	State	-
9917043	9605049	SOX	State Compliance achieved	28-FEB-2024	State	-
9917043	9605050	SOX	State Compliance achieved	28-FEB-2024	State	-
9917043	9605051	SOX	State Compliance achieved	28-FEB-2024	State	-
9917043	9605052	SOX	State Compliance achieved	28-FEB-2024	State	-
9917043	9605053	SOX	State Compliance achieved	28-FEB-2024	State	-
9917043	9605054	SOX	State Compliance achieved	28-FEB-2024	State	-
9917043	9605055	SOX	State Compliance achieved	28-FEB-2024	State	-
9917043	9605056	SOX	State Compliance achieved	28-FEB-2024	State	-
9917043	9605057	SOX	State Compliance achieved	28-FEB-2024	State	-
9917043	9605058	SOX	State Compliance achieved	28-FEB-2024	State	-
9917043	9605059	SOX	State Compliance achieved	28-FEB-2024	State	-
9917043	9605060	SOX	State Compliance achieved	28-FEB-2024	State	-
9917043	9605061	SOX	State Compliance achieved	28-FEB-2024	State	-
9917043	9605062	SOX	State Compliance achieved	28-FEB-2024	State	-
9917043	9605063	SOX	State Compliance achieved	28-FEB-2024	State	-
9917043	9605064	SOX	State Compliance achieved	28-FEB-2024	State	-
9917043	9605065	SOX	State Compliance achieved	28-FEB-2024	State	-

1 - 50 of 68

All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
INTERTIE SUNNYVALE @MAUDE/237	67377	Yes	Consecutive Connection	Surface water	Emergency	Active
HAMILTON 02	15691	Yes	Well	Ground water	Permanent	Active
HAMILTON 03	15679	Yes	Well	Ground water	Permanent	Active
ORTEGA WELL 11	15678	Yes	Well	Ground water	Permanent	Active
RAYNOR WELL	15677	Yes	Well	Ground water	Permanent	Active
SERRA	15676	Yes	Well	Ground water	Permanent	Active
WESTMOOR 01	15675	Yes	Well	Ground water	Permanent	Active
WOLFE ROAD - ABANDONED	7432	Yes	Well	Ground water	Other	Inactive
INDUSTRIAL - ABANDONED	7428	Yes	Well	Ground water	Other	Inactive
TAAFE - DESTROYED	17991	Yes	Well	Ground water	Other	Inactive
CENTRAL 01 - DESTROYED	17984	Yes	Well	Ground water	Other	Inactive
SCHROEDER - DESTROYED	17971	Yes	Well	Ground water	Other	Inactive
CENTRAL 02 - DESTROYED	15682	Yes	Well	Ground water	Other	Inactive
LOSSE 01 - STANDBY	24531	Yes	Well	Ground water	Emergency	Active
INTERTIE SUNNYVALE @ECR/CRESTVIEW	67379	Yes	Consecutive Connection	Surface water	Emergency	Active
INTERTIE SUNNYVALE @KNICKERBOCKER/DALE	67381	Yes	Consecutive Connection	Surface water	Emergency	Active
INTERTIE SUNNYVALE @BERNARDO/EVELYN	67383	Yes	Consecutive Connection	Surface water	Emergency	Active
CUPERTINO - HOMESTEAD ROAD / HOLLENBECK	72379	Yes	Consecutive Connection	Surface water	Emergency	Active
SCVWD - BARRANCA CONNECTION	31840	Yes	Consecutive Connection	Surface water	Permanent	Active
SCVWD - WRIGHT CONNECTION	31841	Yes	Consecutive Connection	Surface water	Permanent	Active
SFPUC - FAIR OAKS	31843	Yes	Consecutive Connection	Surface water	Permanent	Active
SFPUC - LOCKHEED	65082	Yes	Consecutive Connection	Surface water	Permanent	Active
SFPUC - BORREGAS	65083	Yes	Consecutive Connection	Surface water	Permanent	Active
SFPUC - LAWRENCE	65084	Yes	Consecutive Connection	Surface water	Permanent	Active
SFPUC - MARY	65085	Yes	Consecutive Connection	Surface water	Permanent	Active
SFPUC - PALOMAR	65086	Yes	Consecutive Connection	Surface water	Permanent	Active
SCVWD PURCHASED XCLD	31842	Yes	Consecutive Connection	Surface water	Permanent	Inactive
DISTRIBUTION SYSTEM	31839	No	Distribution System/Zone	-	-	Active

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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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