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F) Lange Property Page 7 of 13 Our Project Number: LES08004 February 8, 2008 /According to EXTOXNET, paraquat is a quaternary nitrogen herbicide classified as an RUP and a highly toxic compound in EPA toxicity class I. Many cases of illness and/or death have been reported in humans. The compound is moderately toxic to birds and many aquatic organisms. The chemical is highly persistent in the soil environment, with reported field half-lives of greater than 1000 days. Studies have shown the half life in water to be as fast as 13.1 hours and up to 23 weeks. According to the PMEP, fenpropathrin has a reported half- life of 33 to 34 days under aerobic soil conditions. "The end-use product (Danitol 2.4 EC Spray) has moderate to low acute oral, dermal, inhalation and eye/skin irritation toxicity... Because of the physical properties of fenpropathrin, ... it is unlikely that fenpropathrin or its metabolites can leach to potable groundwater." Information regarding febutatin-oxide was not readily available on both EXTOXNET and the PMEP. The EPA website10 was searched for more information regarding this chemical. According to an EPA article entitled R.E.D Facts" and dated September 1994, "fenbutatin-oxide is a miticide or acaricide used to control mites, aphids, thrips, mealybugs, whiteflies and scale." It has a "calculated half-lives range from 271 days to 1367 days in different States and soils. This long half-life causes residue levels to increase with each successive application." "Although fenbutatin-oxide is persistent, residues do not tend to accumulate in crops planted in previously treated soils." Fenbutatin-oxide is classified as a highly toxic compound under EPA "Toxicity Category I ... for eye irritation effects." It is "very highly toxic to freshwater, estuarine and marine and invertebrates." 3.1.5 Water Supply and Sewage Disposal System One domestic well is located on the subject property. The EHD well and septic permit files were searched on January 15, 2008 in an effort to obtain copies of permits for any water wells or septic tanks on the subject property; the following permits were found: ■Permlt� __.ems l�T� e-of,Worki Address Datd-IsiWeid1111111111111111111 Pump Installation W. end of Jahant, west of June 29, 1978 Lower Sacramento Pump Repair, Replacement N. Side of Jahant Rd, I/2 mile September 14, 1976 W. of Lower Sac Pump Replacement W. end of Jahant, west of December 22. 1971 Lower Sacramento Well Installation Jahant Rd, 7/10 mile west of March 27, 1996 Lower Sacramento Wastewater Commercial Septic 1525 E. Jahant Road March 2 2006 io http://www.epa.gov 11 http://www.epa.gov/oppsrrdl/REDS/factsheets/0245fact.pdf r) 902 Industrial Way-Lodi,CA 95240.209.367.3701 -Fax 209.369.4228 02008 Neil D.Anderson&Associates,Inc.