This is a loss in Oregon.

The claimant alleges oil spilled from the insured's trucks; the insured denies it was their trucks but went out and treated the spill anyway with a chemical. We have the MSDS sheet for it – Purple Power and it has Skin Irritation Category 2; Eye Irritation Category 2; and Acute Toxicity, Oral Category 4; and HMIS rating of Moderate ("pollutant"? see question below).

The letter of representation speaks to injuries from the Purple Power and not from the alleged oil spill from the insured's trucks. However, prior to the letter of rep, the claimant complained of the oil causing property damage to his home and landscape. Seems like they gave up on blaming the insured for the oil spill (for now) because they can't prove it and are focusing on the Purple Power being the cause for alleged injury(ies).