: Agency : Croton Landfill Westchester County DEF 270 North Avenue New Rochelle, New York 10801 Attn: Peter Costa pH : Free Cl2 : Residual Cl2 : Sample chilled on arrival ? : YES Sample Type : NP_STRM addt'l Report To : Comment : Method Test Description Results Qualifier Units DL/LOQ Analyzed on Validator Inorganics ASP Metals by EPA 6020A EPA 6020A EPA 6020A EPA 6020A EPA 6020A EPA 6020A EPA 6020A EPA 6020A EPA 6020A EPA 6020A EPA 6020A EPA 6020A EPA 6020A EPA 6020A EPA 6020A EPA 6020A EPA 6020A EPA 6020A SM22-5210B Aluminum Antimony Arsenic Barium Beryllium Cadmium Chromium Cobalt Copper Lead Manganese Nickel Selenium Silver Thallium Vanadium Zinc Biochemical Oxygen Demand 183 < LOQ 28.5 450 < LOQ < LOQ < LOQ 32.8 73.9 < LOQ 145 91.1 < LOQ < LOQ < LOQ < LOQ 135 122 ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L mg/L 50.0 05/20/2021 10.0 05/19/2021 10.0 05/19/2021 10.0 05/19/2021 10.0 05/19/2021 10.0 05/19/2021 10.0 05/19/2021 10.0 05/19/2021 50.0 05/19/2021 10.0 05/19/2021 10.0 05/19/2021 10.0 05/19/2021 20.0 05/19/2021 20.0 05/19/2021 10.0 05/19/2021 20.0 05/20/2021 80.0 05/19/2021 2 05/17/2021 8:55 am MO MO MO MO MO MO MO MO MO MO MO MO MO MO MO MO MO MO Test replicates showing large differences between the computed CBOD for high and low dilutions (>30% RPD) may indicate the presence of toxic substances {SM22 5210B-7.b.}. KA 5/18/21 NYSDOH ELAP and NELAC do not offer accreditation for Alkalinity, Ammonia, Biochemical Oxygen Demand, Total Kjeldahl Nitrogen and Total Phosphorus in the S&HW Matrix. Unless the sample is otherwise qualified, all Quality Control acceptance criteria have satisfied method and NELAC requirements. DL = Detection Limit Approved By LOQ = Limit of Quantitation Robert Hilbrandt Environmental Laboratories NYS ELAP # 10108 (914) 231-1620 J=value is an estimate QA Officer Report Number: H = exceeds holding time Date Approved : 1813 07/14/2021 EMAIL 7/14/2021 These analytical results relate only to the sample identified in this report. Page 1 of 7 AX08975 Sample No. Method SM21-5210B SW846-9012A SW846-7196A SW846-7470A EPA 9040C Test Description Results ASP BOD Set Date and Time ASP Total Cyanide Hexavalent Chromium, ASP ASP Mercury Corrosivity/pH Qualifier Completed 0.094 < LOQ < LOQ 7.33 Units mg/L ug/L ug/L Units DL/LOQ Analyzed on Validator 05/12/2021 11:59 am 0.005 05/14/2021 40 05/11/2021 2:53 pm 0.20 05/18/2021 0.1 05/11/2021 3:29 pm Note: The Corrosivity/pH test is an Analyze Immediately On-Site (AIOS) parameter. AIOS parameters have a 15 minute hold time. The Laboratory provides this test result only as a guide. RWHJr EPA 9065 Phenolics, Total Recoverable 0.194 mg/L 0.004 06/07/2021 SW846-3005A ASP Metals Digestion - Aqueous Completed 05/13/2021 SM20 2540D Total Suspended Solids 172 mg/L 2.0 05/17/2021 MO MO MO MO JLM MO MO MO Organics EPA8081B Pesticides - Water SW846/8081B 4,4-DDD < LOQ ug/L 0.25 05/17/2021 MG SW846/8081B 4,4-DDE < LOQ ug/L 0.25 05/17/2021 MG SW846/8081B 4,4-DDT < LOQ ug/L 0.25 05/17/2021 MG SW846/8081B a-BHC < LOQ ug/L 0.125 05/17/2021 MG SW846/8081B a-Chlordane < LOQ ug/L 0.125 05/17/2021 MG SW846/8081B Aldrin < LOQ ug/L 0.125 05/17/2021 MG SW846/8081B b-BHC < LOQ ug/L 0.125 05/17/2021 MG SW846/8081B Chlordane < LOQ ug/L 0.25 05/17/2021 MG SW846/8081B d-BHC < LOQ ug/L 0.125 05/17/2021 MG SW846/8081B Dieldrin < LOQ ug/L 0.25 05/17/2021 MG SW846/8081B Endosulfan 1 < LOQ ug/L 0.125 05/17/2021 MG SW846/8081B Endosulfan 2 < LOQ ug/L 0.25 05/17/2021 MG SW846/8081B Endosulfan sulfate < LOQ ug/L 0.25 05/17/2021 MG SW846/8081B Endrin < LOQ ug/L 0.25 05/17/2021 MG SW846/8081B Endrin aldehyde < LOQ ug/L 0.25 05/17/2021 MG SW846/8081B Endrin ketone < LOQ ug/L 0.25 05/17/2021 MG SW846/8081B g-Chlordane < LOQ ug/L 0.125 05/17/2021 MG SW846/8081B Heptachlor < LOQ ug/L 0.125 05/17/2021 MG SW846/8081B Heptachlor epoxide < LOQ ug/L 0.125 05/17/2021 MG SW846/8081B Lindane < LOQ ug/L 0.125 05/17/2021 MG SW846/8081B Methoxychlor 0.144 J ug/L 0.25 05/17/2021 MG SW846/8081B Prep. Method EPA3510C/3620C ug/L 05/17/2021 MG SW846/8081B Toxaphene < LOQ ug/L 05/17/2021 MG J 12.5 "J" Flag - Estimated value on an analyte found below the calibration range and at or above the detection limit. RWHJr EPA8082A - PCBs in Water SW846/8082A Aroclor 1016 (PCB-1016) < LOQ ug/L 0.50 05/17/2021 MG SW846/8082A Aroclor 1221 (PCB-1221) < LOQ ug/L 0.50 05/17/2021 MG SW846/8082A Aroclor 1232 (PCB-1232) < LOQ ug/L 0.50 05/17/2021 MG SW846/8082A Aroclor 1242 (PCB-1242) < LOQ ug/L 0.50 05/17/2021 MG NYSDOH ELAP and NELAC do not offer accreditation for Alkalinity, Ammonia, Biochemical Oxygen Demand, Total Kjeldahl Nitrogen and Total Phosphorus in the S&HW Matrix. Unless the sample is otherwise qualified, all Quality Control acceptance criteria have satisfied method and NELAC requirements. DL = Detection Limit Approved By LOQ = Limit of Quantitation Robert Hilbrandt Environmental Laboratories NYS ELAP # 10108 (914) 231-1620 J=value is an estimate QA Officer Report Number: H = exceeds holding