13026 Resubmission

Geotechnical Engineering Investigation Report JMA02P003.05- 08/19/2025 262-270 Main St ○ Install 3/4"clean crushed stone within trench to a minimum of 4ft below finished grade. ○ Run drains to basement sump or exterior drain ○ Install Exterior Waterproofing System (see notes below) ○ Backfill trench in 12” lifts and properly compact to 95% of its modified proctor density (ASTM D1557). − Soil used as backfill should not be handled when frozen and should be free of excessive moisture, organics, and deleterious material − See section 4.10 - Backfill • Install Exterior Wall Waterproofing System ○ Install waterproofing system such as Resisto® water proofing membranes or approved equal on exterior foundation walls. − Waterproofing system shall be installed per manufacturer recommendations − Waterproofing system shall wick water into 3/4"clean crushed stone surrounding 4” diameter perforated PVC pipe. − Waterproofing system shall be installed prior to backfilling the excavation. • Final System must be properly designed and certified by a Licensed Engineer or Architect in the State of New Jersey. • See Figure 1 for Illustration Figure 1: Typical Exterior French Drain Installation (Janesky) 4.3 Frost Considerations Within the Essex County, New Jersey region, frost depth is mapped to exist 36 inches (3 feet) below grade. As such, Hudson Engineering recommends that all structural foundations be founded at least 36 inches (3 feet) below grade 4