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From: Cordero.Osvaldo To: Sinah.SandiD fEHDI Cc: Dutra,James Subject: Potential non-conforming waste communications Date: Tuesday,April 28,2026 10:28:26 AM Attachments: 83clde58-bc33-4172-b8e4-6055acbdldb5.Dna 2026sludgei)rofilekmpud.pdf 4.17.26 mccamobell lab analvsis.Ddf Amended Lab Report re KM Sludge 041426.pdf Good morning Sandip, I wanted to reach out and let you know about a potential non conforming waste event that has happened at Forward. On 4/7/2026 Forward received notification of a potential Non-Conforming Waste event. Here are the details so far as we understood them then: The subject waste was wastewater treatment sludge from the Kirkwood Meadows Public Utility District(PUD). The PUD has been sending its wastewater treatment sludge to the Forward landfill since 2008. The waste profile for this material indicates that it is non- hazardous, and prior analytical reports received by our Special Waste team have verified that the sludge has consistently been non-hazardous.Although not yet required by our periodic profile review procedures, on February 23, 2026,the PUD took an early sample of sludge Loaded in a bin provided by a Republic Services affiliate. We are informed that the PUD received a copy of the lab report(attached) on March 10th, but the report was not provided by the PUD to our company and sent to our Special Waste review Team until this Monday,April 6th.The lab report was reviewed by our Special Waste review team yesterday and rejected because it showed the presence of mercury at 36 mg/kg,which is above hazardous waste levels. Please see the attached lab report provided by the PUD. Previous lab reports for this sludge from the PUD have either been non-detect for mercury or mercury levels have been very low. Upon reviewing the analysis on 4/7/2026,we confirmed that no waste was being disposed of in the area where the sludge was deposited.The landfill's practice,which was followed here, is to spread the sludge over the working face and then cover it with dry MSW.This particular area was no longer being used for the disposal of waste when the analytical was reviewed by our Special Waste team, but we have nevertheless cordoned off this area to prevent the inadvertent disposal of any additional waste in this area. Please see attached photographs. We obtained an activity report to determine what sludge deliveries had been received at the landfill since the sample was taken on February 23rd. Our records show that Forward has received two loads of sludge in 20-40 yard bins provided by our affiliate—one with 9.66 tons of sludge on March 5, 2026, and a second with 8.39 tons on March 25, 2026. Both loads were disposed of as described above in the area that we have cordoned off. It is important to note that the subject lab report had not been provided to us by the PUD at the time of Forward's receipt of these two loads of sludge. We notified the PUD that their waste profile is suspended until further notice and Forward will not receive any additional sludge from the PUD until this issue has been resolved.We have instructed the PUD to contact the laboratory to verify that the concentration of mercury is correct.We are currently awaiting a response from the PUD and the laboratory.