Township Council Meeting — Packet

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 - -

TABLE 2 SUB-SLAB SOIL GAS SAMPLE ANALYTICAL RESULTS (APRIL 2023) West Orange DPW - 25 LAKESIDE AVENUE WEST ORANGE, ESSEX COUNTY, NEW JERSEY NJDEP SRP PI# 014423 SAMPLE ID: LAB ID: COLLECTION DATE: SAMPLE MATRIX: SSSG-1 L2317290-06 4/1/2023 Soil-Gas Screening Levels SSSG-2 L2317290-07 4/1/2023 SOIL_VAPOR NJ-RSGS NJ-NRSGS CAS (ug/m3) (ug/m3) Conc 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 95-49-8 107-05-1 622-96-8 108-10-1 67-64-1 71-43-2 75-27-4 75-25-2 74-83-9 75-15-0 56-23-5 108-90-7 75-00-3 67-66-3 74-87-3 156-59-2 10061-01-5 110-82-7 124-48-1 75-71-8 64-17-5 100-41-4 76-13-1 76-14-2 142-82-5 87-68-3 67-63-0 80-62-6 1634-04-4 75-09-2 110-54-3 95-47-6 179601-23-1 100-42-5 75-65-0 127-18-4 109-99-9 108-88-3 156-60-5 10061-02-6 79-01-6 75-69-4 593-60-2 75-01-4 260000 1000 100 3100 15 10000 360 38 42000 28 260000 160000 18 260 36000 23 2600 520000 5100 4700 310000 56 260000 540 14000 36000 5200 5200 52000 540 260000 34 32 1100000 4400 440 13000 15 44000 1500 170 180000 120 1100000 660000 79 1100 150000 100 11000 2200000 21000 20000 1300000 250 1100000 2400 61000 150000 22000 22000 220000 2400 1100000 150 140 2.8 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 1.9 ND ND ND ND 4 ND ND ND ND ND ND ND ND 2.1 ND ND ND 0.69 ND 15 ND ND ND ND ND ND ND ND ND 4.9 ND ND ND ND ND 67 ND ND ND ND 97 26 ND ND ANALYTE Q SSSG-3 L2317290-08 4/1/2023 SOIL_VAPOR RL MDL Conc 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 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 - 4.3 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 5.2 ND 2.3 ND ND ND 1.3 ND ND 1.8 ND ND ND ND ND 2.7 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 75 ND ND ND ND 230 5.1 ND ND 0 - - 1.55 - Q SSSG-4 L2317290-05 4/1/2023 SOIL_VAPOR RL MDL Conc 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 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 - 5 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 5.

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 - 5 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 5.5 ND ND ND ND ND 1.4 ND ND 9.3 ND 1.6 ND ND ND 2.9 23 ND ND ND ND ND 1.6 ND ND ND ND ND ND ND ND 270 ND ND ND ND 280 62 ND ND 0 - - ND - Q SSSG-5 L2317290-09 4/1/2023 SOIL_VAPOR RL MDL Conc 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 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 - 1.6 ND ND ND ND ND 4.9 ND ND ND ND 1.8 ND ND ND ND 6.5 4.1 ND ND 1 7.4 40 2.5 ND ND ND 4.4 ND ND ND 5.9 0.52 4 ND 2.1 ND 2.6 28 2.4 ND ND 3.3 ND 2.7 ND ND ND 5.6 4.3 9.6 ND ND 95 ND 11 ND ND 120 33 ND ND 0 - - 10.4 2.34 3.66 1.56 1.98 4.52 4.82 2.38 1.55 1.29 1.83 1.35 3.87 Q SSSG-6 L2317290-10 4/1/2023 SOIL_VAPOR RL MDL Conc 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 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 - 5.1 ND ND ND ND ND 2 ND ND ND ND ND ND ND ND ND ND ND ND ND ND 3.1 8.8 ND ND ND ND ND 2.2 ND ND 6.3 ND 10 ND ND ND 2.4 28 ND ND ND ND ND ND ND ND 2.7 ND ND ND ND ND 120 ND 1.5 ND ND 340 5.6 ND ND 0 0 0 0 0 0 0 0 0 0 0 0 0 - 4.48 1.96 1.33 - Q SOIL_VAPOR RL MDL Conc 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 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 - 13 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 13 ND ND ND ND ND ND ND ND 7.3 ND 3.5 ND ND ND 2.5 19 ND ND ND ND ND ND ND ND ND ND ND ND ND ND 180 ND ND ND ND 510 10 ND ND 0 0 0 - - ND - Q RL MDL 1.8 2.3 1.8 1.3 1.3 2.4 1.6 2.5 2 1.3 1.5 1.6 0.73 2 2 1.2 1.5 2.4 1.7 1 1.6 3.4 4 1.1 2.2 3.4 1.3 1 2.1 1.5 0.87 1.6 0.68 1.3 1.5 1.1 2.8 1.6 16 1.4 2.5 2.3 1.4 3.5 2 3.4 1.2 2.9 1.2 1.4 2.9 1.4 2.5 2.2 2.4 1.2 1.3 1.5 1.8 1.9 1.4 0.84 - 0 - - NJ VOLATILE ORGANICS IN

1.6 3.4 4 1.1 2.2 3.4 1.3 1 2.1 1.5 0.87 1.6 0.68 1.3 1.5 1.1 2.8 1.6 16 1.4 2.5 2.3 1.4 3.5 2 3.4 1.2 2.9 1.2 1.4 2.9 1.4 2.5 2.2 2.4 1.2 1.3 1.5 1.8 1.9 1.4 0.84 - 0 - - NJ VOLATILE ORGANICS IN AIR 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 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 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. 1.9 - 2.51 - NJ - - NJ - - - - 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-NRIARS: New Jersey 2021 Non-Residential Indoor Air Vapor Intrusion Exposure Pathway Remediation Standards Criteria per Remediation Standards, last amended May 17, 2021. NJ-NRIAS: New Jersey 2021 Non-Residential Indoor Air Remediation Standards - ug/m3 Criteria per May 2021 Version 5.0 Guidance Document. NJ-NRSGS: New Jersey 2021

Standards, last amended May 17, 2021. NJ-NRIAS: New Jersey 2021 Non-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-RIARS: New Jersey 2021 Residential Indoor Air Vapor Intrusion Exposure Pathway Remediation Standards Criteria per Remediation Standards, last amended May 17, 2021. NJ-RIAS: New Jersey 2021 Residential Indoor Air Remediation Standards - 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 J J J NJ NJ NJ NJ J J - -

N FIGURE 1 SITE PLAN DPW FACILITY TOWNSHIP OF WEST ORANGE 25 LAKESIDE AVENUE DEPARTMENT OF PUBLIC WORKS BLOCK 115, LOT 16 WEST ORANGE, NEW JERSEY 25 LAKESIDE AVENUE WEST ORANGE, NEW JERSEY 07052 NJDEP PI # 014423 CONSULTING AND MUNICIPAL ENGINEERS 3759 U.S. Hwy 1 South - Suite 100, Monmouth Junction, NJ 08852 Phone:(732)951-2101 Fax: (732)951-2106

FIGURE 2 VAPOR INTRUSION SAMPLING PLAN DPW FACILITY TOWNSHIP OF WEST ORANGE 25 LAKESIDE AVENUE DEPARTMENT OF PUBLIC WORKS BLOCK 115, LOT 16 WEST ORANGE, NEW JERSEY 25 LAKESIDE AVENUE WEST ORANGE, NEW JERSEY 07052 NJDEP PI # 014423 CONSULTING AND MUNICIPAL ENGINEERS 3759 U.S. Hwy 1 South - Suite 100, Monmouth Junction, NJ 08852 Phone:(732)951-2101 Fax: (732)951-2106