JMA02P003 262 270 Main Street Development Stormwater Management Report

Particle Size Distribution Report As per ASTM D 6913 e ge «& e§ 2 ee see sss x8 <2 ££ $882 @ 558 100) T T TT T i TTT) MT | | | |i | I | 1 Util | fl im! Nl ! Heit tt 4 r {ii Wilh Wry eye ae | l | i I | | boli it 80 + - : . - re | | | I | I I Ty ot ail | | l i l I | 1 WT 70 T T al Ir l i & ml LIN I WL a) Zz i | | Il | I Py} ol Weyl z 1 {ih UITLN Wy faye at 5 50 q \ f n i jot Ww i | | | h) ot tii g Vi mea NG Hyd dad eae wi 40 T l mH t aT TT mT | Ui | |! | pera | I oiyil 20 LI CU WT ih 1 ! ii | ! ITN yt | Hl 1} | I | WI 20 | 4 i Hl 4 4 4 1 mili CUT MI Wy py eh | l | l I I Tr} od ail 10 T T Hi rT U T T T T T i i { |I 1 l Woyly ' Wy d Lh meee Ha ta al 700 10 1 0.4 0.0% 0.00% GRAIN SIZE - mm. % +3" % Gravel % Sand % Fines Coarse Fine Coarse| Medium Fine Silt il Clay 0.0 Ud 32.7 99 13.5 15.7 17.1 SIEVE PERCENT SPEC,” PASS? Material Description SIZE FINER PERCENT | (X=NO) Brown in color. silty gravel with sand 1.5 100.0 1 88.9 m | Aer ints 3/8 670 PL= NP LL= NV Pl= NP #4 56.2 Coefficients #8 473 Dgg= 27.8796 Dg5= 16.6778 Dgo= 6.0316 #10 463 Dgo= 3.1095 D3o= 0.2943 D45= #16 412 D409 Cue Coe #30 35.4 . Classification #50 30.2 - = Ads #100 38 USCS= GM AASHTO= A-1-b #200 17.1 Remarks Sample was dropped off by client on 06/03/25 and tested on 06/ 05/25. In-Situ %MC=6.8 F.M.=4,10 (no specification provided) Location: B-1, S-3 Sample Number: S-! Depth: 4-6" Date: 06/05/2025 ANS CONSULTANTS, INC. South Plainfield, New Jerse Project: Project No: AOF-6133 Client: Hudson Engineering LLC JMA02P003, 262 Main Street, West Orange, NJ Fi | Figure 1

Particle Size Distribution Report As per ASTM D 6913, D-7928 2 : S cg ef 828 £ Sé3 £5 58 =z & 82 8 EEE 100| T l Ty TT l T T)I) Wy | i Le | | Weyl y boyy i WWE} tt l ! He tid 4 ! a CHT CTT irre ay i | Pyle ot fl | I I Ty ot ayy 80) Y py i ! Ho | YT TNL Il | | | Py od ayil 7 | 1 | t fl l I I | Py od afl T l Tr T T rr POUT CN Wy pry ran G60 Lo A z2 | I ee ee IN 1 Hoyt} tay 7 ETM LLL AETTILL ted HY y PP ey ee 5 60 \ f pty f Sot! re re ir | l a en) | AL | | 1) ob iyi g ee Wa Let eit ir \ w 40 T rT tht t l Kw TTT TH PWT fe aR HW} )NGey edit a0 oe HLT AA th | i Fy root | ! | 1 oli | | Py ti ot fl | I i} INL ULI 20 i " Jt} 4 i i i i i Hoy PUNT WT WTP ya A i | ee || | l I 1} UNI 10 t t 4th t t TT I | Py tf ot fl I i Weyl} t yy A LLM ELL HLL LL allht| Pprerce ond ral 100 10 0. 0.01 0.00 GRAIN SIZE - mm. % +3" % Gravel % Sand % Fines Coarse Fine Coarse Medium Fine Silt Clay 0.0 21.9 16.8 8.6 13.1 30.4 73 19 SIEVE PERCENT SPEC.* PASS? Material iption SIZE FINER PERCENT (X=NO) Brown in color. poorly graded sand with silt and gravel. Sand 1.5 100.0 1 78.1 mw | mt a 3/8 673 PL= NP LL= NV Pl= NP #4 61.3 Coefficients #8 53.8 Dgo= 33.0166 Dgs= 30.4032 Dgo= 4.2394 #10 52.7 D5o= 1.3660 D3o= 0.2653 Dy5= 0.1322 #16 49.0 D49= 0.0828 Cy= 51.22 Co= 0.20 #30 44.2 Classification #50 32.8 —y a SUTOS Acd.l #100 170 USCS= SP-SM AASHTO= A-I-b #200 9.2 Remarks Sample was dropped off by client on 06/03/25 and tested on 06/ 05/25. In-Situ %MC=12.7 F.M.=3.96 (no specification provided) Location: B-1, S-6 Sample Number: S-2 Depth: 18'-20' Date: 06/05/2025 ANS CONSULTANTS, INC. | Client: Hudson Engineering LLC Project: JMA02P003, 262 Main Street, West Orange, NJ South Plainfield, New Jerse ProjectNo: _AOF-6133 Figure 2 F 1

Particle Size Distribution Report As per ASTM D 6913, D-7928 e ge e§ 8 see es 5 a% x8 oz g¢ §&§88 8 Es 100 T T rT TT rT N T T T OTN VY T Y way Wt ay at i Hl i || " I | 1 | uit * rT rwTT WT ae VOLT Ue HY LY WY yy ty eae 80 + + + +N + H + + VOTE UL TN I Wy ya yey eae 1 it | LENS | Hedi} tb aiti 70 T T l ml TTS T TTT a | i | 1 | | ol Hetil ou uel & 60 LAME Lt LUT Hi: Ltt ti Zz I | | it | | Nal} ol iii rs | Vl | Vall q * ! : rh th | ! iN Tl Ww | i | Q VTL WATT WAyq ft I wi 40 tT rt l TH rT i TTT Nt VEL WATT WE Wd yaya iN sd YUL LILA WE tats + UT CWT WT yy ay PTTL UL Vw A WEI fate a eiN 20 H. I [tl i i i | 1 i 1 PTY Eh CWT] Wel yay ea mot rTM EL tay ll Wa da ea 10 t tf u hh rT u i t ih 1t POUEWELL H Vay} Wy pay ba [~o 0 LA Lh UHL Heb tat i 100 4 0.1 0.01 0.001 GRAIN SIZE - mm. % 43" % Gravel % Sand % Fines 7 Coarse Fine Coarse Medium Fine Silt Clay 0.0 9.6 18.5 5.6 67 27.8 23.9 19 SIEVE PERCENT SPEC.” PASS? Material Description SIZE FINER PERCENT (X=NO) Reddish brown in color. silty sand with gravel. Sandy loam. T 100.0 3/4 90.4 sa a - Atterberg Limi : “4 19 PL= NP LL= NV Pl= NP #8 67.1 Coefficients #10 66.3 Dgp= 18.7733 Dgg= 13.8957 Deo= 0.4644 #16 63.8 B= 0.1949 D39= 0.0689 Di5= 0.0191 #30 61.0 10 0.0082 Cue 56.79 Coe 1.25 #50 56.8 Classification #100 45.0 = = AQ. 100 hs USCS= SM AASHTO= A-2-4(0) Remarks Sample was dropped off by client on 06/03/25 and tested on 06/ 05/25, In-Situ %MC=12.7 F.M.=2.66 (no specification provided) Location: B-1, S-7 Sample Number: S-3 Depth: 23'-25' Date: 06/05/2025 ANS CONSULTANTS, INC. South Plainfield, New Jerse’ Project: Project No: _AOF-6133 Client: Hudson Engineering LLC JMA02P003, 262 Main Street, West Orange, NJ Figure 3 F 1 —

Particle Size Distribution Report As per ASTM D 6913, . eg efLeegef ° 2° 88 ¢ ge22855 2 2 g2¢ 2 $25 100 T l AN Ty l l T >t) ayy | i byt R | |i | | Hef by i ayy 90 ! M 1 | || L H ! ! | ttt | | Ly AE I | I | Py) ob iit 1 | H | t fl I i | I Py} ot Wil 80 + H +--+ \ tt tf +t + +—tt | I P yi oi I | Hoyt} bowie 0 | l Ltt tn | I Hoyt} td dill T T a a T 1 w | I byt ot fl \ | l Woyty t aye wi 60 | L Lit tt tt or I | 1] ot = Zz I l Eyl ot i j \ I Woy by tye | I Py ot fl j \. I Weyl y i ll 5 50 i f oe et n f i 1 tlh uw | i | | | Py} od Wi ° POTAIPET Et qe EEL WT tay tay Ww 40 T t T_T t Nir pty yr | | ae | I | hey | Py or Wy 30 | i Lit tt fi l | N Lyd Wt | | i | I I iN Py) or qi | j oe || I I I \ 1 Uti 20 } " i. | jo . HT J } i 1 POMPE EW CUTE Wy yt A f | l ee | | I | 1} 1 Sy 10 t t a l u t 71 . | I Ey ti ot | | i I I} to Wy 0 | 1 (oe i I | Lyte 7 70 1 0.1 0.01 0.001 GRAIN SIZE - mm. % +3" % Gravel % Sand % Fines Coarse Fine Coarse| Medium Fine Silt [ Clay 0.0 6.4 32.7 12.6 19.0 18.4 10.9 SIEVE PERCENT SPEC.” PASS? Material Description SIZE FINER PERCENT | (X=NO) Reddish brown in color. poorly graded sand with silt and gravel 1 100.0 3/4 93.6 A oe - Atterberg Limits #4 609 PL= NP LL= NV Pl= NP #8 50.2 Coefficients #10 48.3 Dgo= 16.8733 Dgg= 14.4169 #16 42.3 Ds50= 2.3156 D39= 0.4448 #30 34.4 10= Cue #50 24.1 7 . Classification #100 16.3 = sp. = Ade #200 10.9 USCS= SP-SM AASHTO= A-l-a Remarks Sample was dropped off by client on 06/03/25 and tested on 06/ 05/25. In-Situ %MC=5.8 F.M.=4.03 (no specification provided) Location: B-2, S-3 Sample Number: S-4 Depth: 8'-10' Date: 06/05/2025 ANS CONSULTANTS, INC. South Plainfield, New Jerse Client: Hudson Engineering LLC Project: JMA02P003, 262 Main Street, West Orange, NJ Project No: _AOF-6133 Figure 4 F 1

Engineering Stormwater Narrative JMA02P003- May 26, 2026 262-270 Main St Development Appendix F: Water Quality Analysis 9

1S Proposed Impervious 2L Aqua-Ponic Treatment Unit Subcat Reach Pond Link Routing Diagram for Water Quality Prepared by HydroCAD SAMPLER 1-800-927-7246 www.hydrocad.net, Printed 5/26/2026 HydroCAD® 10.20-8a Sampler s/n S05110 © 2025 HydroCAD Software Solutions LLC

Water Quality Prepared by HydroCAD SAMPLER 1-800-927-7246 www.hydrocad.net Printed 5/26/2026 HydroCAD® 10.20-8a Sampler s/n S05110 © 2025 HydroCAD Software Solutions LLC This report was prepared with the free HydroCAD SAMPLER, which is licensed for evaluation and educational use ONLY. For actual design or modeling applications you MUST use a full version of HydroCAD which may be purchased at www.hydrocad.net. Full programs also include complete technical support,training materials, and additional features which are essential for actual design work. Rainfall Events Listing Event# Event Storm Type Curve Mode Duration B/B Depth AMC Name (hours) (inches) 1 WQ NJ DEP 2-hr Default 2.00 1 1.25 2

Water Quality Prepared by HydroCAD SAMPLER 1-800-927-7246 www.hydrocad.net Printed 5/26/2026 HydroCAD® 10.20-8a Sampler s/n S05110 © 2025 HydroCAD Software Solutions LLC This report was prepared with the free HydroCAD SAMPLER, which is licensed for evaluation and educational use ONLY. For actual design or modeling applications you MUST use a full version of HydroCAD which may be purchased at www.hydrocad.net. Full programs also include complete technical support,training materials, and additional features which are essential for actual design work. Area Listing (all nodes) Area CN Description (sq-ft) (subcatchment-numbers) 6,132 98 Paved parking, HSG C (1S) 6,132 98 TOTAL AREA

Water Quality Prepared by HydroCAD SAMPLER 1-800-927-7246 www.hydrocad.net Printed 5/26/2026 HydroCAD® 10.20-8a Sampler s/n S05110 © 2025 HydroCAD Software Solutions LLC This report was prepared with the free HydroCAD SAMPLER, which is licensed for evaluation and educational use ONLY. For actual design or modeling applications you MUST use a full version of HydroCAD which may be purchased at www.hydrocad.net. Full programs also include complete technical support,training materials, and additional features which are essential for actual design work. Soil Listing (all nodes) Area Soil Subcatchment (sq-ft) Group Numbers 0 HSG A 0 HSG B 6,132 HSG C 1S 0 HSG D 0 Other 6,132 TOTAL AREA

Water Quality Prepared by HydroCAD SAMPLER 1-800-927-7246 www.hydrocad.net Printed 5/26/2026 HydroCAD® 10.20-8a Sampler s/n S05110 © 2025 HydroCAD Software Solutions LLC This report was prepared with the free HydroCAD SAMPLER, which is licensed for evaluation and educational use ONLY. For actual design or modeling applications you MUST use a full version of HydroCAD which may be purchased at www.hydrocad.net. Full programs also include complete technical support,training materials, and additional features which are essential for actual design work. Ground Covers (all nodes) HSG-A HSG-B HSG-C HSG-D Other Total Ground Subcatchment (sq-ft) (sq-ft) (sq-ft) (sq-ft) (sq-ft) (sq-ft) Cover Numbers 0 0 6,132 0 0 6,132 Paved parking 1S 0 0 6,132 0 0 6,132 TOTAL AREA