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j June 13, 2006 t NOA Project Number: E06063A According to EXTOXNET,lambda cyhalothrin is a synthetic pyrethroid insecticide and acaricide used to control a wide range of pests. It is moderately toxic in the technical form,but may be rIi highly toxic via some routes in formulation. Lambda cyhalothrin is moderately persistent in the soil environment,with a field half-life close to 30 days in most soils. 3.1,5 Water Supply and Sewage Disposal System PPY �' P Y F1 The EHD well and septic permit files were searched on May 23, 2006 in an effort to obtain copies '1 F1 of permits for any water wells or septic tanks on the subject property. One permits was found for a well,located on the southwest corner of the subject property. { A copy of this permit can be found in Appendix F. 3.L6 Department of Oil, Gas, and Geothermal Resources 1_--i The California Department of Oil, Gas, and Geothermal Resources (DOGGR) well map 60673 was reviewed for evidence of oil or gas wells on or in the vicinity of the subject property. One well was located on the subject property in 1968. Three additional wells were found within one-quarter R miles of the subject property. All four wells were drilled, found dry and abandoned between 1955 I � and 1980 (Appendix F). FW Based on the locations, no production, and abandonment dates of these wells, the environmental impact is not a concern to the subject property. 3.L7 Site Reconnaissance [ A visual reconnaissance of the subject property was conducted on June 1, 2006. Photographs of the subject property are attached to this report as Appendix B. A site visit/assessment checklist is attached to this report as Appendix D. The subject property was observed to be a flat, U shaped portion of a larger field. An irrigation well was located on the southwest corner of the subject property. Oil was observed around the bas of the well and on surrounding soils. The remainder of the property was observed to be irrigation canals and agricultural field. A sump was located on the northwest corner of the subject property. Three, two pole-mounted transformers, and two, one pole-mounted transformers were observed by the wells and sumps of the subject property and adjacent properties. A blue PCB-free sticker was observed on the two, single pole-mounted transformers. A pile of concrete debris was observed near the center of the subject property. 13Califomia Department of Oil,Gas,and Geothermal Resources,well map 606. I � 7