2025 10 27 Drainage Statement Rev 1

66 Glen Avenue Glen Rock, NJ 07452 Telephone: 201-301-1045 Fax: 201-857-8002 Email: info@johnsonsoils.com JOHNSON Solis OMPANY. January 13, 2025 PETRY ENGINEERING, LLC 155 Passaic Avenue, Suite 350 Fairfield, NJ 07004 Re: 410 Eagle Rock Ave. West Orange, NJ JSC Job #25-026 Dear Sir: Following are the test results for the sample received on January 8, 2025. The hydrometer analysis was done accordingly to ASTM-D-422 as per N.J.A.C. 7:9A-6.3 (a). Sample | % Sand % Silt % Clay Pe fad Mae He Bae (% of BO oe cies! TP-1 54 32 14 52 34 K-1** TP-2 50 34 16 58 50 K-1** TP-3 55 31 14 55 48 K-1#* SOIL PERMEABILITY RATING IS FROM THE SOIL PERMEABILITY/TEXTURAL TRIANGLE. Based on the average textural analysis, the soil permeability rating for ‘TP-1 is K-1** (0.2-0.6 in/hr.) ‘TP-2 is K-1** (0.2-0.6 in/hr.) TP-3 is K-1** (0.2-0.6 in/hr.) hd Please note the permeability rating has been adjusted to the next slowest class due to the high percentage of fine and very fine SAND as per Chapter 9A Standards for Individual Subsurface Sewage Disposal Systems 7:9A-6.3 (h)2. Very truly yours, JOHNSON SOILS COMP. Lisa V. Mahle-Greco, PE. CA Engineering Manager NJ Lic. No. 43197 * Subsurface Investigation * Geotechnical Engineering * Construction Testing «