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Mr. Steve Pinkerton <br /> July 21, 2000 <br /> Page 2 <br /> Section 1.2.1.3 <br /> Pg. 9: If results obtained from composite soil samples are considered for use in risk <br /> assessment, DTSC should be consulted. <br /> Section 1.2.2.1 <br /> Pg. 10: Reference to Figure 5 depicts Area 16, not Area 15. <br /> Pg. 11: There is reference to 15 groundwater monitoring wells at Area 15. According to <br /> Figure 4, there are only 12 monitoring wells identified. <br /> Pg. 12: Where is Monitoring Well 21 A (MW-21 A), Figure 4, located? <br /> Section 1.2.2.2 <br /> Pg. 13: What has happened to the free product observed in 1996? Nine groundwater <br /> monitoring wells are mentioned in line 10, only eight are identified in Figure 5. <br /> Section 1.2.2.3 <br /> Pg. 14: 1 ,2-Dichloroethane often is a breakdown product of Trichloroethane. Is the <br /> presence in Area 16 an indication of Trichloroethane stored/used in this area? <br /> Section 2.1.1 <br /> Pg. 17: This section refers to "...Area 10 and 2 and Area 20." What does the number 2 <br /> refer to? <br /> Section 4.1.1 <br /> Pg. 26: What are the sample numbers which exceeded STLC and TCLP? <br /> Section 4.1.2 <br /> Pg. 27: Reference is made to petroleum hydrocarbons detected in samples analyzed at <br /> Area 10. Why is this referenced in the section identified as Area 11? <br /> GENERAL COMMENTS <br /> 1 ) References to the following should be identified as guidelines: "significant <br /> concentrations, PRGs, STLC, TTLC, and 1,000 mg/kg lead (Pb)." <br />