600 RIVERSIDE RD Geotech Report 2022-10-25

CLIENT: Landau Associates, Inc. CERTIFICATE OF ANALYSIS DATE: 3/23/2017 130 - 2nd Ave. S. ALS SDG#: EV17030121 Edmonds, WA 98020 WDOE ACCREDITATION: C601 CLIENT CONTACT: Larry Beard CLIENT PROJECT: RBP 121030.010.012 tLABORATORY CONTROL SAMPLE RESULTS ALS Test Batch ID: 114474 - Soil by NWTPH-DX LIMITS ANALYSIS ANALYSIS BY SPIKED COMPOUND METHOD %REC RPD QUAL MIN MAX DATE TPH-Diesel Range (C12-C24) - BS NWTPH-DX 89.1 75.5 122.1 03/18/2017 EBS TPH-Diesel Range (C12-C24) - BSD NWTPH-DX 90.9 2 75.5 122.1 03/18/2017 EBS ' ALS Test Batch ID: 114381 - Soil by EPA-8270 SIM LIMITS ANALYSIS ANALYSIS BY SPIKED COMPOUND METHOD %REC RPD QUAL MIN MAX DATE 'Naphthalene - BS EPA-8270 SIM 93.1 49.2 140 03115/2017 PAB Naphthalene - BSD EPA-8270 SIM 101 9 49.2 140 03/15/2017 PAB Acenaphthene - BS EPA-8270 SIM 95.9 55 147 03/15/2017 PAB 'Acenaphthene - BSD EPA-8270 SIM 104 8 55 147 03/15/2017 PAB Pentachlorophenol - BS EPA-8270 SIM 94.9 5 139 03/15/2017 PAB Pentachlorophenol - BSD EPA-8270 SIM 95.6 1 5 139 03/15/2017 PAB Pyrene - BS EPA-8270 SIM 86.6 47.9 176 03/15/2017 PAB Pyrene - BSD EPA-8270 SIM 96.1 10 47.9 176 03/15/2017 PAB Benzo[G,H,I]Peryiene - BS EPA-8270 SIM 104 40.4 143 03/15/2017 PAB Benzo[G,H,I]Perylene - BSD EPA-8270 SIM 111 6 40.4 143 03/15/2017 PAB ' ALS Test Batch ID: R291675 - Soil by EPA-8082 LIMITS ANALYSIS ANALYSIS BY SPIKED COMPOUND METHOD %REC RPD QUAL MIN MAX DATE 'PCB-1016-BS EPA-8082 94.5 50 150 03/21/2017 PAB PCB-1016 - BSD EPA-8082 86.6 9 50 150 03/21/2017 PAB PCB-1260 - BS EPA-8082 96.9 50 150 03/21/2017 PAB ALS Test Batch ID: 114397 - Soil by EPA-6020 LIMITS ANALYSIS ANALYSIS BY SPIKED COMPOUND METHOD %REC RPD QUAL MIN MAX DATE Arsenic - BS EPA-6020 96.4 80 120 03/16/2017 RAL Arsenic - BSD EPA-6020 97.3 1 80 120 03/16/2017 RAL APPROVED BY ' Laboratory Director Page 13 ADDRESS 8620 Holly Drive, Suite 100, Everett, WA 9820 PHONE 425-356-2600 FAX 425-356-2626 ALS Group USA, Corp dba ALS Environmental www.aisgiobal.com RIC�"l solurlons