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Environmental Support

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Environmental Support

• To: Mr. Roy Brown

• Because: Concerns voiced of college being built on a landfill or surrounding impacts

• Content:– Phase I Environmental Site Assessment– Environmental Field Investigation

Phase I Environmental Site Assessment

• Performed by Marcie Hart, MS• Following ASTM E1527-05 methodology

– View aerial photographs– View topographic maps– Review federal and state environmental data

bases– Title searches– Interviews : Staff, Residents, Previous Workers– Visual observations

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Topographic Maps – 1967 & 1973

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Topo Maps -

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Environmental Investigation

• Jeff Neathery, PG• Electromagnetic Conductivity Survey

– Anomalies• Backhoe Excavation - six• Drilling - six• Sensory – visual, odor, tactile• Sampling

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Electromagnetic Conductivity

• 38 passes• 50 feet detection

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Drilling

Sampling/Observations

• VOCs – Volatile Organic Compounds3 Samples for 80 different constituents

• Odor – None• Color – Nothing unexpected• Texture – Aligned with soil type

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1938 and 1959

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1963 and 1977

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1985 and 1996

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2004

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Conclusions• No evidence to support a concern of the

presence or likely presence of any hazardous substance or petroleum products to indicate a release, past release, or threat of a release

• No evidence that any portion of the Palo Alto Campus is located over a former landfill

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Concerns

• Handling methodology of hazardous waste

• Acid dilution tank

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Recommendations

• Handling of Hazardous Waste

• Acid Dilution Tank Mr. Roy Brown

• Share the results with the Staff/Employees

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