California Integrated Water Quality System (CIWQS 100.0) - Build Number: mainTrunk.mm.dd.yyyy.1


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	California Integrated Water Quality System Project (CIWQS)

Facility At-A-Glance Report

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Place ID 202456

General Information
Region	Place ID	Place Name	Place Type	Place Address	Place County
2	202456	3400 Hillview Avenue, Palo Alto	Groundwater Cleanup Site	3400 Hillview Palo Alto, CA, 94304	Santa Clara

Related Parties

Party	Party Type	Party Name	Role	Classification	Relationship Start Date	Relationship End Date
320069	Person	John Madigan	Case Worker		08/03/2023
559932	Person	Armand C. DeBan	Contact		10/12/2016
137758	Organization	San Francisco Bay Regional Water Quality Control Board	Regulating	Waterboard	10/12/2016
554849	Person	Marcos De la Cruz	Case Worker		10/12/2016	08/03/2023
559933	Person	James F. Cronmiller	Contact		10/12/2016
18001	Organization	3400 Hillview Group	Owner	Privately-Owned Business	03/13/1995

Total Related Parties: 6

Regulatory Measures

Reg Measure ID	Reg Measure Type	Region	Program	Order No.	WDID	Effective Date	Expiration Date	Status	Amended?
183077	Enrollee	2	NPDNONMUNIPRCS	R2-2004-0055	2 438361001		07/21/2009	Historical	N
398000	Enrollee - NPDES	2	NPDNONMUNIPRCS	R2-2017-0048	2 438361002	08/25/2014	06/30/2031	Active	N
372537	Enrollee	2	NPDNONMUNIPRCS	R2-2009-0059	2 438361001	03/13/1995	09/30/2014	Historical	N

Total Reg Measures: 3

Violations

Violation ID	Occurred Date	Violation Type	(-) Violation Description	Corrective Action	Status	Classification	Source
1092269	07/14/2021	CAT2	Trichloroethene Maximum Daily (MDEL) limit is 0.65 ug/L and reported value was 2.4 ug/L.	The discharger has not identified a specific cause but states the GAC treatment system failed. A full diagnosis of the treatment system is still underway. Potential corrective measures include, GAC vessel layout changes, GAC backwashing routing operations and replacing GAC in one or both vessels. The discharger will conduct start-up phase monitoring when corrective actions are implemented.	Violation	B	Report
1092268	06/30/2021	CAT2	Trichloroethene Maximum Daily (MDEL) limit is 0.65 ug/L and reported value was 2.9 ug/L.	The discharger has not identified a specific cause but states the GAC treatment system failed. A full diagnosis of the treatment system is still underway. Potential corrective measures include, GAC vessel layout changes, GAC backwashing routing operations and replacing GAC in one or both vessels. The discharger will conduct start-up phase monitoring when corrective actions are implemented.	Violation	B	Report
Report displays most recent five years of violations. Refer to the Interactive Violation Report for more data.

Total Violations: 2

Priority Violations: 0

*Click the "(+/-) Violation Description" link to expand and contract the violation description.
*As of 5/20/2010, the Water Board's Enforcement Policy requires that all violations be classified as 1, 2 or 3, with class 1 being the highest. Prior to this, violations were simply classified as Yes or No. If a 123 classification has been assigned to a violation that occurred before this date, that classification data will be displayed instead of the Yes/No data.

Violation Types
CAT2 = Category 2 Pollutant (Effluent Violation for Group 2 Pollutant)

Enforcement Actions

Enf Id	Enf Type	Enf Order No.	Effective Date	Status
448313	Admin Civil Liability	R2-2022-1010	10/25/2022	Historical
433433	Admin Civil Liability	R2-2020-1014	02/04/2020	Historical
252531	Admin Civil Liability	R2-2003-0101	06/16/2004	Historical

Total Enf Actions: 3

Inspections

Inspection ID	Inspection Type	Lead Inspector	Actual End Date	Planned	Violations	Attachment
334972	B Type compliance inspection	Farhad Azimzadeh	06/24/2004	Y	0	N/A
290927	B Type compliance inspection	Brett Stevens	05/31/2000	Y	0	N/A

Total Inspections: 2

Last Inspection: 06/24/2004

The current report was generated with data as of: 05/21/2026
Regional Boards are in the process of entering backlogged data.
As a result, data may be incomplete.

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