0.50 05/18/2021 MG SW846 8260C trans-1,2-dichloroethene < LOQ ug/L 0.50 05/18/2021 MG SW846 8260C trans-1,3-dichloropropene < LOQ ug/L 0.50 05/18/2021 MG SW846 8260C Trichloroethene < LOQ 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 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.AX08973 REPORT OF ANALYSIS Westchester County Department of Labs and Research Sample Location : 10 Dana Road Received By : SM JLM Bottle No : S0573 C0157 D1623 F139 G5032 E3325 B560 B246 K0316 K1211 K1208 K8871 K0817 K8638 CROTON POINT PARK CROTON, NY 10520 Collection Point : Valhalla, New York 10595 RINSE BLK Collected By : STEY & DUVAL Collection Date : 05/11/2021 AT 10:15:00AM Submitted On : 05/11/2021 AT 11:36:00AM 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 : DI 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 < LOQ < LOQ < LOQ < LOQ < LOQ < LOQ 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 < LOQ < LOQ < LOQ < LOQ < LOQ < LOQ < LOQ < LOQ < LOQ < LOQ < LOQ < LOQ < 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 10.0 05/19/2021 2.0 05/19/2021 2.0 05/20/2021 2.0 05/19/2021 2.0 05/19/2021 2.0 05/19/2021 4.0 05/19/2021 2.0 05/19/2021 10.0 05/19/2021 2.0 05/19/2021 2.0 05/19/2021 2.0 05/19/2021 4.0 05/19/2021 4.0 05/19/2021 2.0 05/19/2021 4.0 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 : 1813 07/14/2021 EMAIL 7/14/2021 These analytical results relate only to the sample identified in this report. Page 1 of 4 AX08973 Sample No. Method Test Description Results EPA 6020A Zinc Alkalinity as Calcium Carbonate - ASP SM22-5210B Biochemical Oxygen Demand SM21-5210B ASP BOD Set Date and Time EPA 6010C 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 SM22 2320B Qualifier Units < LOQ <5 < LOQ Completed < LOQ < LOQ < LOQ < LOQ < LOQ < LOQ < LOQ < LOQ < LOQ < LOQ < LOQ < LOQ 6.39 ug/L mg/L mg/L ug/L mg/L mg/L mg/L units mg/L ug/L ug/L ug/L mg/L mg/L mg/L Units DL/LOQ Analyzed on Validator 16.0 05/19/2021 5.0 05/17/2021 2 05/17/2021 8:55 am 05/12/2021 11:59 am 1000 05/20/2021 5.0 06/02/2021 0.005 05/14/2021 5.0 05/20/2021 1 05/11/2021 2:37 pm 1 05/20/2021 40 05/11/2021 2:53 pm 0.20 05/18/2021 1000 05/20/2021 0.05 05/27/2021 0.01 05/12/2021 12:48 pm 0.05 05/21/2021 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