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California Integrated Water Quality System Project (CIWQS)
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Place ID 202456 		  
  
  
  
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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
Expand/Contract Related Parties
Related Parties
Party Party Type Party Name Role Classification Relationship Start Date Relationship End Date
554849 Person Marcos De la Cruz Case Worker 10/12/2016
559932 Person Armand C. DeBan Contact 10/12/2016
559933 Person James F. Cronmiller Contact 10/12/2016
137758 Organization San Francisco Bay Regional Water Quality Control Board Regulating Waterboard 10/12/2016
18001 Organization 3400 Hillview Group Owner Privately-Owned Business 03/13/1995
Total Related Parties: 5
Expand/Contract Regulatory Measures
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 09/01/2022 Active N
372537 Enrollee 2 NPDNONMUNIPRCS R2-2009-0059 2 438361001 03/13/1995 09/30/2014 Historical N
Total Reg Measures: 3
Expand/Contract Violations
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
1090660 05/21/2021 DMON The discharger did not perform standard observations nor collect receiving water samples for DO, hardness, and salinity when performing effluent confirmation sampling. (see Attachment E Table E-2 and section VIII for requirements). None were addressed by the discharger. Staff sent email on 5-28-21 asking for this data. The discharger was made aware of missing monitoring and it will implement necessary steps to comply in the future. Violation B Report
1090659 04/28/2021 CAT2 Trichloroethene Maximum Daily (MDEL) limit is 0.65 ug/L and reported value was 1.14 ug/L. As preventive measures, the discharger reviewed chain-of-custody protocols, recirculated effluent to flush out potential stagnant zones in the media vessels, and replaced flexible hosing connecting GAC vessels. It did not perform standard observations nor receiving water sampling for DO, salinity, and hardness. Violation B Report
Report displays most recent five years of violations. Refer to the Interactive Violation Report for more data.
Total Violations: 4 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) DMON = Deficient Monitoring
Expand/Contract Enforcement Actions
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
Expand/Contract Inspections
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: 05/31/2024
Regional Boards are in the process of entering backlogged data.
As a result, data may be incomplete.
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