ug/L 0.50 05/18/2021 MG SW846 8260C Trichlorofluoromethane < LOQ ug/L 0.50 05/18/2021 MG SW846 8260C Vinyl chloride < LOQ ug/L 0.50 05/18/2021 MG J Units DL/LOQ Analyzed on Validator "J" Flag - Estimated value on an analyte found below the calibration range and at or above the detection limit. RWHJr 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 : 1772 07/12/2021 EMAIL 7/12/2021 These analytical results relate only to the sample identified in this report. Page 4 of 4 Sample No.AX08665 REPORT OF ANALYSIS Westchester County Department of Labs and Research Sample Location : 10 Dana Road Received By : VA Bottle No : S0762 C0100 F325 D1720 G4897 B619 216 E3334 Kx6 CROTON POINT PARK CROTON, NY 10520 Collection Point : Valhalla, New York 10595 RFW-1S Collected By : STEY & DUVAL Collection Date : 05/06/2021 AT 9:00:00AM Submitted On : 05/06/2021 AT 11:09:00AM PWS No. : Type Descriptor : Source ID : 000 ID of Source : 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 : SW_WATER addt'l Report To : Comment : Method Test Description Results Qualifier Units DL/LOQ Analyzed on Validator Inorganics ASP Metals by EPA 6010C EPA 6010C EPA 6010C EPA 6010C EPA 6010C EPA 6010C EPA 6010C Boron Calcium Iron Magnesium Potassium Sodium 448 125000 52200 45300 10200 58400 ug/L ug/L ug/L ug/L ug/L ug/L 50 05/20/2021 1000 05/20/2021 50 05/20/2021 1000 05/20/2021 100 05/20/2021 100 05/20/2021 MO MO MO MO MO MO 1080 13.8 < LOQ 2760 < LOQ < LOQ 21.0 < LOQ 211 1090 237 28.0 < LOQ < LOQ < LOQ < LOQ 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 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 MO MO MO MO MO MO MO MO MO MO MO MO MO MO MO MO 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 Aluminum Antimony Arsenic Barium Beryllium Cadmium Chromium Cobalt Copper Lead Manganese Nickel Selenium Silver Thallium Vanadium 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 : 1772 07/12/2021 EMAIL 7/12/2021 These analytical results relate only to the sample identified in this report. Page 1 of 4 AX08665 Sample No. Method Test Description EPA 6020A Results Zinc Alkalinity as Calcium Carbonate - ASP SM22 2320B Qualifier Units 918 >500 DL/LOQ Analyzed on ug/L mg/L 80.0 05/19/2021 5.0 05/10/2021 2.10 mg/L 2 05/12/2021 Completed 125000 115 0.012 72 150 500 < LOQ 3.82 45300 12.9 < LOQ < LOQ 6.79 ug/L mg/L mg/L mg/L units mg/L ug/L ug/L ug/L mg/L mg/L mg/L Units Validator MO MO Alkalinity result beyond titrametric range of instrument, upper limit reported SM22-5210B Biochemical Oxygen Demand 9:30 am MO 05/07/2021 12:16 pm 1000 05/20/2021 25.0 05/25/2021 0.005 05/12/2021 5.0 05/18/2021 10 05/06/2021 3:00 pm 1 05/21/2021 40 05/06/2021 3:08 pm 0.20 05/14/2021 1000 05/20/2021 1.00 05/21/2021 0.01 05/07/2021 1:39 pm 0.05 05/21/2021 0.1 05/06/2021 2:50 pm MO MO MO MO MO JLM MO MO MO MO MO MO MO JLM Dilution water blank exceeds 0.2 mg/L. KA 5/17/2021 SM21-5210B ASP BOD Set Date and Time ASP Calcium by ICP-AES SW846/9253 Chloride - ASP SW846-9012A ASP Total Cyanide HACH 8000 Chemical Oxygen Demand - ASP SM20-2120B Color, Apparent - ASP EPA 6010C ASP Hardness as Calcium Carbonate SW846-7196A Hexavalent Chromium, ASP SW846-7470A ASP Mercury SW846-6010C ASP Magnesium SM22-4500NH3-G Ammonia as N SM22-4500NO2B Nitrite Nitrogen as N EPA 353.2, Rev 2.0 N-Nitrate Calculated EPA 9040C Corrosivity/pH EPA 6010C Note: The Corrosivity/pH test is an Analyze Immediately On-Site (AIOS) parameter. AIOS parameters have