6 Collected By : STEY & DUVAL Collection Date : 05/11/2021 AT 7:20:00AM Submitted On : 05/11/2021 AT 11:37:00AM 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 : NP_STRM 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 1190 164000 6170 111000 8500 377000 ug/L ug/L ug/L ug/L ug/L ug/L 50 05/21/2021 1000 05/21/2021 50 05/21/2021 1000 05/21/2021 100 05/21/2021 100 05/21/2021 MO MO MO MO MO MO 53.7 < LOQ < LOQ 673 < LOQ < LOQ 211 35.3 < LOQ < LOQ 1760 1350 < 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 : 1813 07/14/2021 EMAIL 7/14/2021 These analytical results relate only to the sample identified in this report. Page 1 of 4 AX08979 Sample No. Method Test Description EPA 6020A Results Zinc Alkalinity as Calcium Carbonate - ASP SM22 2320B Qualifier Units < LOQ >500 DL/LOQ Analyzed on Validator ug/L mg/L 80.0 05/19/2021 5.0 05/17/2021 MO MO mg/L 2 05/17/2021 8:55 am 05/12/2021 11:59 am 1000 05/21/2021 125 06/02/2021 0.005 05/14/2021 5.0 05/20/2021 10 05/11/2021 2:37 pm 1 05/21/2021 40 05/11/2021 2:53 pm 0.20 05/24/2021 1000 05/21/2021 0.05 06/02/2021 0.01 05/12/2021 12:48 pm 0.05 05/21/2021 0.1 05/11/2021 3:29 pm MO MO MO MO MO MO JLM MO MO MO MO MO MO MO JLM Alkalinity result beyond titrametric range of instrument, upper limit reported SM22-5210B Biochemical Oxygen Demand 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 SM21-5210B < LOQ Completed 164000 775 0.028 60 300 870 < LOQ < LOQ 111000 < LOQ < LOQ 0.474 6.99 ug/L mg/L mg/L mg/L units mg/L ug/L ug/L ug/L mg/L mg/L mg/L Units 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 Not Detected mg/L 0.004 06/07/2021 SW846-3005A ASP Metals Digestion - Aqueous Completed 05/13/2021 40CFR136 NH4 Preparation Completed 06/02/2021 Ammonia as N analyzed by On-line Gas Diffusion Automated Salicylate Method, as appears in Method Update Rule II, 40CFR 136, Table 1B, Federal Register Volume 77 Number 97, pursuant to Clean Water Act promulgated 06/01/2012. 40CFR136 SW846/9056A SM22-2540C SM22-4500Norg D SW846-9060A EPA 180.1 TKN Digestion/Diffusion Method Sulfate, Aqueous - ASP Total Dissolved Solids Total kjeldahl nitrogen as N - ASP Total Organic Carbon - ASP Turbidity Completed 37.7 2038.0 1.53 3.15 101 06/03/2021 1.0 05/27/2021 2.0 05/12/2021 0.06 06/07/2021 0.25 05/27/2021 0.2 05/11/2021 mg/L mg/L mg/L mg/L as C NTU 2:37 pm MO MO MO MO MO MO MO MO JLM Organics VOCs by 8260C Baseline Expanded SW846 8260C 1,2-dibromo-3-chloropropane < LOQ ug/L 0.500 05/14/2021 MG SW846 8260C 1,2-dibromoethane < LOQ ug/L 0.500 05/14/2021 MG SW846 8260C 2-hexanone < LOQ ug/L 5.00 05/14/2021 MG SW846 8260C Acetone < LOQ ug/L 10.0 05/14/2021 MG SW846 8260C Acetonitrile < LOQ ug/L 50.0 05/14/2021 MG SW846 8260C Acrolein < LOQ ug/L 5.00