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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.

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Violations

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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	9817007	Returned to Compliance	01-JAN-2020	-	No
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	17004	Returned to Compliance	01-NOV-1999	30-NOV-1999	Yes
TT	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Surface Water Treatment Rule	9817005	Returned to Compliance	01-AUG-1998	31-AUG-1998	Yes
TT	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Surface Water Treatment Rule	9505002	Returned to Compliance	01-MAR-1995	31-MAR-1995	Yes
TT	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Surface Water Treatment Rule	9205001	Returned to Compliance	01-MAR-1992	31-MAR-1992	Yes

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Enforcement Actions

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Latest Enforcement ID	Associated To Violation ID	Enforcement Action Type Code	Enforcement Action Description	Enforcement Date	Originator Description	Enforcement Comment
9717015	9817007	SOX	State Compliance achieved	04-OCT-2023	State	-
17017	9205001	SOX	State Compliance achieved	26-JUL-2000	State	CO 02-034
117038	17004	SIF	State Public Notification received	01-FEB-2000	State	LTR - P. WALTER - TC MCL - 11/99
117045	9817005	SOX	State Compliance achieved	14-SEP-1998	State	LTR - P. WALTER - NOV - TURBIDITY FAILURE - 8/98
117019	9505002	SOX	State Compliance achieved	18-APR-1995	State	NOV: TURBIDITY FAILURE

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All Facilities

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Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
INTERTIE CWSC LAS @ ROBLEDA	74159	Yes	Consecutive Connection	Surface water	Emergency	Active
INTERTIE CWSC LAS @ FOOTHILL EXPY	74235	Yes	Consecutive Connection	Surface water	Emergency	Active
INTERTIE PALO ALTO @ ARASTRADERO	74237	Yes	Consecutive Connection	Surface water	Emergency	Active
INTERTIE PALO ALTO @ PAGE MILL	74238	Yes	Consecutive Connection	Surface water	Emergency	Active
SFPUC - PALO ALTO VA 1	31859	Yes	Consecutive Connection	Surface water	Permanent	Active
SFPUC - PALO ALTO VA 2	65122	Yes	Consecutive Connection	Surface water	Permanent	Active
SFPUC - HILLVIEW & MIRANDA	65123	Yes	Consecutive Connection	Surface water	Permanent	Active
DISTRIBUTION SYSTEM	31858	No	Distribution System/Zone	-	-	Active
MCCANN T1	76639	No	Storage	-	-	Active
MCCANN T2	76640	No	Storage	-	-	Active
LA CRESTA T1	76641	No	Storage	-	-	Active
LA CRESTA T2	76642	No	Storage	-	-	Active
HUNGRY HORSE T1	76643	No	Storage	-	-	Active
ELENA T1	76644	No	Storage	-	-	Active
ALTAMONT T1	76645	No	Storage	-	-	Active
ALTAMONT T2	76646	No	Storage	-	-	Active
NEARY T1	76647	No	Storage	-	-	Active
NEARY T2	76648	No	Storage	-	-	Active
PAGE MILL T1	76649	No	Storage	-	-	Active
PAGE MILL T2	76650	No	Storage	-	-	Active
CHLORAMINE STATION - NEARY T2	74234	No	Treatment Plant	-	-	Active

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Treatment Processes

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Facility Name	Facility ID	Treatment Process	Treatment Objective
CHLORAMINE STATION - NEARY T2	74234	Chloramines	Disinfection

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