44-25 Exhibit B-Complete - VI Letter Report - DPW West Orange - April 2023.pdf

TABLE 1 INDOOR AIR & AMBIENT AIR SAMPLE ANALYTICAL RESULTS (APRIL 2023) West Orange DPW - 25 LAKESIDE AVENUE WEST ORANGE, ESSEX COUNTY, NEW JERSEY SAMPLE ID: LAB ID: COLLECTION DATE: NJDEP REMEDIATION STANDARDS VI Exposure Indoor Air IA Rapid Action Pathway Remediation Levels Remediation Std Standards NJ-RIARSNJ-NRIARS NJ-RIAS NJ-NRIAS NJ-IRRAL NJ-INRAL SAMPLE MATRIX: ANALYTE IA-1 L2317290-01 4/2/2023 IA-2 L2317290-02 4/2/2023 IA-3 L2317290-03 4/2/2023 AA-040123 L2317290-04 4/2/2023 AIR AIR AIR AIR CAS (ug/m3) (ug/m3) (ug/m3) (ug/m3) (ug/m3) (ug/m3) Conc RL MDL 1,1,1-Trichloroethane 1,1,2,2-Tetrachloroethane 1,1,2-Trichloroethane 1,1-Dichloroethane 1,1-Dichloroethene 1,2,4-Trichlorobenzene 1,2,4-Trimethylbenzene 1,2-Dibromoethane 1,2-Dichlorobenzene 1,2-Dichloroethane 1,2-Dichloropropane 1,3,5-Trimethybenzene 1,3-Butadiene 1,3-Dichlorobenzene 1,4-Dichlorobenzene 1,4-Dioxane 2,2,4-Trimethylpentane 2-Butanone 2-Chlorotoluene 3-Chloropropene 71-55-6 79-34-5 79-00-5 75-34-3 75-35-4 120-82-1 95-63-6 106-93-4 95-50-1 107-06-2 78-87-5 108-67-8 106-99-0 541-73-1 106-46-7 123-91-1 540-84-1 78-93-3 95-49-8 107-05-1 5200 21 3.7 63 1.5 210 7.3 0.92 830 0.72 5200 - 22000 88 8.8 260 1.5 880 31 3.3 3500 2.5 22000 - 5200 21 3.7 63 1.5 210 7.3 0.92 830 0.72 5200 - 22000 88 8.8 260 1.5 880 31 3.3 3500 2.5 22000 - 10000 42 4.2 130 1.5 420 15 8.4 1700 56 10000 - 44000 180 18 520 2 1800 62 36 7000 250 44000 - 1.5 ND ND ND ND ND 2 ND ND ND ND ND ND ND ND ND 3.6 2.5 ND ND Q 1.1 1.4 1.1 0.81 0.79 1.5 0.98 1.5 1.2 0.81 0.92 0.98 0.44 1.2 1.2 0.72 0.93 1.5 1 0.63 RL MDL Conc - 1.2 ND ND ND ND ND 2.2 ND ND ND ND ND ND ND ND ND 4.3 2.7 ND ND Q 1.1 1.4 1.1 0.81 0.79 1.5 0.98 1.5 1.2 0.81 0.92 0.98 0.44 1.2 1.2 0.72 0.93 1.5 1 0.63 RL MDL Conc - 2 ND ND ND ND ND 2.3 ND ND ND ND ND ND ND ND ND 4 2.2 ND ND Q 1.1 1.4 1.1 0.81 0.79 1.5 0.98 1.5 1.2 0.81 0.92 0.98 0.44 1.2 1.2 0.72 0.93 1.5 1 0.63 RL MDL Conc - ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND Q 1.1 1.4 1.1 0.81 0.79 1.5 0.98 1.5 1.2 0.81 0.92 0.98 0.44 1.2 1.2 0.72 0.93 1.5 1 0.63 - 4-Ethyltoluene 4-Methyl-2-pentanone Acetone Benzene Bromodichloromethane Bromoform Bromomethane Carbon disulfide Carbon

0.81 0.79 1.5 0.98 1.5 1.2 0.81 0.92 0.98 0.44 1.2 1.2 0.72 0.93 1.5 1 0.63 - 4-Ethyltoluene 4-Methyl-2-pentanone Acetone Benzene Bromodichloromethane Bromoform Bromomethane Carbon disulfide Carbon tetrachloride Chlorobenzene Chloroethane Chloroform Chloromethane cis-1,2-Dichloroethene cis-1,3-Dichloropropene Cyclohexane Dibromochloromethane Dichlorodifluoromethane Ethanol Ethylbenzene Freon-113 Freon-114 Heptane Hexachlorobutadiene Isopropanol Methyl Methacrylate Methyl tert butyl ether Methylene chloride n-Hexane o-Xylene p/m-Xylene Styrene Tertiary butyl Alcohol Tetrachloroethene Tetrahydrofuran Toluene trans-1,2-Dichloroethene trans-1,3-Dichloropropene Trichloroethene Trichlorofluoromethane Vinyl bromide Vinyl chloride 622-96-8 108-10-1 3100 67-64-1 71-43-2 0.64 75-27-4 75-25-2 74-83-9 5.2 75-15-0 730 56-23-5 1.3 108-90-7 52 75-00-3 10000 67-66-3 100 74-87-3 94 156-59-2 10061-01-5 0.91 110-82-7 6300 124-48-1 75-71-8 64-17-5 100-41-4 1.1 76-13-1 5200 76-14-2 142-82-5 87-68-3 67-63-0 80-62-6 1634-04-4 11 75-09-2 280 110-54-3 730 95-47-6 100 179601-23-1 100 100-42-5 1000 75-65-0 127-18-4 11 109-99-9 108-88-3 5200 156-60-5 10061-02-6 0.91 79-01-6 1.1 75-69-4 593-60-2 75-01-4 0.64 13000 1.6 22 3100 2 220 44000 430 390 3.1 26000 4.9 22000 47 1200 3100 440 440 4400 47 22000 3.1 3 2.8 3100 0.64 5.2 730 1.3 52 10000 100 94 6300 1.1 5200 11 280 730 100 100 1000 11 5200 1.1 0.64 13000 1.6 22 3100 2 220 44000 430 390 26000 4.9 22000 47 1200 3100 440 440 4400 47 22000 3 2.8 6200 36 10 1500 47 100 20000 200 190 13000 110 10000 1100 1300 1500 200 200 2000 84 10000 4.2 64 26000 160 44 6200 200 440 88000 860 780 52000 490 44000 4700 5200 6200 880 880 8800 360 44000 18 280 ND 2.1 67 1.9 ND ND ND ND ND ND ND ND 1.2 ND ND 1.2 ND 5.9 140 1.5 ND ND 3.2 ND 42 ND ND ND 5.3 2 5.2 ND ND 2.2 ND 8.7 ND ND 1.8 100 ND ND 0.98 2 2.4 0.64 1.3 2.1 0.78 0.62 1.3 0.92 0.53 0.98 0.41 0.79 0.91 0.69 1.7 0.99 9.4 0.87 1.5 1.4 0.82 2.1 1.2 2 0.72 1.7 0.7 0.87 1.7 0.85 1.5 1.4 1.5 0.75 0.79 0.91 1.1 1.1 0.87 0.51 - ND 2.4 95 2.1 ND ND ND ND ND ND ND ND 1.1 ND ND 1.4 ND 5.9 190 1.8 ND ND 3.6 ND 37 ND ND ND 6.7 2.3 6.5 ND ND 2.4 ND 12 ND ND 1.5 90 ND ND 0.98 2 2.4 0.64 1.3 2.1 0.78 0.62 1.3 0.92 0.53 0.98 0.41 0.79 0.91 0.69 1.7 0.99 9.4 0.87 1.5 1.4 0.82 2.1 1.2 2 0.72 1.7 0.7 0.87 1.7 0.85 1.5 1.4 1.5 0.75 0.79 0.91 1.1 1.1 0.87 0.51 - ND 2.3 59 1.9 ND ND ND ND ND ND ND ND 1.1

2 1.3 0.92 0.53 0.98 0.41 0.79 0.91 0.69 1.7 0.99 9.4 0.87 1.5 1.4 0.82 2.1 1.2 2 0.72 1.7 0.7 0.87 1.7 0.85 1.5 1.4 1.5 0.75 0.79 0.91 1.1 1.1 0.87 0.51 - ND 2.3 59 1.9 ND ND ND ND ND ND ND ND 1.1 ND ND 1.3 ND 4.9 130 1.6 ND ND 3.2 ND 39 ND ND 4.5 5.6 2 5.6 ND ND 2.4 ND 8.7 ND ND 1.8 100 ND ND 0.98 2 2.4 0.64 1.3 2.1 0.78 0.62 1.3 0.92 0.53 0.98 0.41 0.79 0.91 0.69 1.7 0.99 9.4 0.87 1.5 1.4 0.82 2.1 1.2 2 0.72 1.7 0.7 0.87 1.7 0.85 1.5 1.4 1.5 0.75 0.79 0.91 1.1 1.1 0.87 0.51 - ND ND 9 ND ND ND ND ND ND ND ND ND 1.1 ND ND ND ND 2.4 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 1.3 ND ND 0.98 2 2.4 0.64 1.3 2.1 0.78 0.62 1.3 0.92 0.53 0.98 0.41 0.79 0.91 0.69 1.7 0.99 9.4 0.87 1.5 1.4 0.82 2.1 1.2 2 0.72 1.7 0.7 0.87 1.7 0.85 1.5 1.4 1.5 0.75 0.79 0.91 1.1 1.1 0.87 0.51 - - - - - 11.2 1.27 3.97 1.06 1.02 9.36 2.57 1.03 1.18 3.64 0 0 0 0 0 0 0 0 0 0 - 14.6 2.29 4.61 1.11 1.03 11.9 1.05 2.62 1.28 1.03 1.07 4.42 0 0 0 0 0 0 0 0 0 0 0 0 - 11.6 1.24 3.83 1.16 1.17 10.4 1.14 2.36 1.25 3.95 0 0 0 0 0 0 0 0 0 0 - ND - 0 - - NJ VOLATILE ORGANICS IN AIR NJ VOLATILE ORGANICS IN AIR-TIC No Tentatively Identified Compounds Butane 000106-97-8 Unknown Isobutane 000075-28-5 Nonane (C9) 000111-84-2 Acetaldehyde 000075-07-0 Decane (C10) 000124-18-5 Methyl Alcohol 000067-56-1 unknown alkane unknown alkane unknown alkane unknown alkane unknown benzene Pentane, 2-methyl000107-83-5 Pentane, 3-methyl000096-14-0 Butane, 2,3-Dimethyl000079-29-8 Cyclopentane, Methyl000096-37-7 Pentane 000109-66-0 * Comparison is not performed on parameters with non-numeric criteria. 1.8 Exceeded NJ-RIAS 1.9 Exceeded NJ-NRIAS NJ J NJ NJ NJ NJ J J NJ NJ NJ J NJ NJ NJ NJ J NJ NJ NJ NJ NJ NJ-NRIARS: New Jersey 2021 Non-Residential Indoor Air Vapor Intrusion Exposure Pathway Remediation Standards Criteria per Remediation Standards, last amended May 17, 2021. NJ-RIARS: New Jersey 2021 Residential Indoor Air Vapor Intrusion Exposure Pathway Remediation Standards Criteria per Remediation Standards, last amended May 17, 2021. NJ-INRAL: New Jersey 2021 Indoor Air Non-Residential Rapid Action Levels - ug/m3 Criteria per May 2021 Version 5.0 Guidance Document. NJ-IRRAL: New Jersey 2021 Indoor Air Residential Rapid Action Levels - ug/m3 Criteria per May 2021 Version 5.0 Guidance Document. NJ-NRIAS: New Jersey 2021 Non-Residential Indoor Air Remediation Standards -

AL: New Jersey 2021 Indoor Air Residential Rapid Action Levels - ug/m3 Criteria per May 2021 Version 5.0 Guidance Document. NJ-NRIAS: New Jersey 2021 Non-Residential Indoor Air Remediation Standards - ug/m3 Criteria per May 2021 Version 5.0 Guidance Document. NJ-RIAS: New Jersey 2021 Residential Indoor Air Remediation Standards - ug/m3 Criteria per May 2021 Version 5.0 Guidance Document. NJ-NRSGS: New Jersey 2021 Non-Residential Soil Gas Screening Levels - ug/m3 Criteria per May 2021 Version 5.0 Guidance Document. NJ-RSGS: New Jersey 2021 Residential Soil Gas Screening Levels - ug/m3 Criteria per May 2021 Version 5.0 Guidance Document. NJ J NJ NJ NJ NJ J NJ NJ NJ - -