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a m n n Eger Property—ADDENDUM to SSCR Page 3 of 4 Our Project Number: LES090551 September 11, 2009 According to EXTOXNET, chlorpyrifos is toxicity class II - moderately toxic. The EPA has established a 24-hour reentry interval for crop areas treated with emulsifiable concentrate or wettable powder formulations of chlorpyrifos unless workers wear protective clothing. Products containing chlorpyrifos bear the Signal Word WARNING or CAUTION, depending on the toxicity of the formulation. 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 EXTOXNET, GUP simazine is a selective triazine herbicide classified as highly toxic if inhaled, moderately toxic if ingested, and slightly toxic via dermal exposure. Simazine is persistent, does not adsorb strongly to soil particles, and has a lengthy soil half-life; these factors suggest a potential for groundwater contamination. Information regarding fenbutatin-oxide was not readily available on both EXTOXNET and the PMEP. The EPA website? 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." Fen butatin-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." In conclusion, agricultural records indicate RUP chemicals including chlorpyrifos, fenbutatin- oxide, paraquat dichloride, and simazine have been applied to the property. No evidence was found, however, to indicate that the chemicals were applied inappropriately. These records do not change the conclusions and recommendations contained in the original report. LIMITATIONS This report was compiled as a Surface and Subsurface Contamination Report for the subject property. This report contains information and data provided to NOA by several sources. NOA in no way warrants the accuracy or completeness of the information provided to this investigation by those sources. It should be noted that when an environmental assessment is completed without sample collection and quantitative analysis of soil and groundwater beneath the site, as in this study, http://www.epa.gov e http://www.epa.gov/oppsrrdi/REDS/factsheets/0245fact.pdf 902 Industrial Way•Lodi, G4 95240 209.367.3701 -Fax 209.333.8303 02009 Nell 0.Anderson&Associates,Inc.