Stormwater Management Report 4898 2292 85031

Client: Gomes Management Project: 525 Northfield Avenue, West Orange, NJ Page: 2 Date: 09/03/2024 FIELD INVESTIGATION The soil boring locations were selected and marked by an ANS field representative based upon the location plan provided by the client and also based upon the equipment access. Surface utility mark-out was performed by New Jersey One-Call System. Underground utilities were also cleared by GPR solutions, a Private Utility Mark out Company on August 19, 2024. Once cleared, the soil boring work began on August 19, 2024. A total of eight (8) soil borings, B-1 to B-8 were drilled during the geo-technical investigation at the site are as follows: B-1 8/21/2024 - '-4) B-2/2A 8/21/2024 Hole collapsed at 7’-5” 11'-4” B-3 8/21/2024 Hole collapsed at 7’-2” g'-5" B-4 8/20/2024 Hole collapsed at 4’-4” 41'-2” B-5/5A 8/20/2024 Hole collapsed at 9'-2” 19’-9” B-6 8/20/2024 1" 25'-7" B-7 8/19/2024 Se 14-2” B-8 8/19/2024 8-9" 19-2” The soil boring locations are shown in the Soil Boring Location Plan which is included in Appendix-A. Soil boring work was performed under the direction and supervision of field Engineer Mr. Syed Abbas and Mr. Krunal Parmar. The borings were drilled using a 3” diameter hollow stem auger. Soil encountered was sampled continuously down to a depth of 12’-0" and then at 5’-0” interval down to augur refusal noted between 9’-5” to 19’-9” depth in borings B-1 to B-5, B-7 & B-8. Soil encountered was sampled continuously down to a depth of 12’-0” and then at 5’-0” interval down to spoon refusal noted at 25'-7” depth in boring B-6. Soil samples were extracted using a 2” diameter split spoon sampler as per the procedure specified in ASTM 1586-99. Samples for the boring were obtained by the Standard Penetration Test (SPT) Method (ASTM D 1586), which consists of driving a 2-inch outside-diameter split-spoon sampler into the soil with a 140-pound weight falling freely from a distance of 30 inches. The samplers were driven in four successive 6-inch increments, with the number of blows per increment being recorded. The number of blows required to advance the sampler in the middle 12 inches is termed as the Standard Penetration Resistance (N-value) and is presented on the Field Test Boring Logs in Appendix-A. During drilling operations, extracted soil samples were visually examined and classified by our Field Engineer. The soil sample

(N-value) and is presented on the Field Test Boring Logs in Appendix-A. During drilling operations, extracted soil samples were visually examined and classified by our Field Engineer. The soil sample description, Standard penetration test (SPT) blow counts and locations, strata changes, groundwater depth and other pertinent information were recorded on a detailed field log. Soil samples obtained from the split spoon sampler were visually classified according to the Unified Soil Classification System (USCS). LABORATORY TESTING: A total of eight (8) soil samples, one each from borings B-1 to B-8 were laboratory tested to determine in-place moisture content and to classify the soil as per Unified Soil Classification System, ASTM-D2487-93. The findings are summarized below. Laboratory test report are enclosed in Appendix -B.