J_2024 05 09_West Orange Stormwater Management Plan

PSE&G Mav 17.2011 Page 13 light truck traffic and recommend the following generalized flexible asphalt pavement and aggregate sections be used. Pavement Type .XI: / : ; Bituminous Asphalt Aggregate only Surface Course (inches) •> 2 NJDOT Dense Graded Aggregate -vi (inches) 4 15 BaS(inches)Se 2 - If provided with more specific traffic loading, we would be pleased to reevaluate these general sections. Soil Permeability Testing: Two test pits were excavated in the area being considered for stormwater management. At these locations, in-place field percolation tests were initiated at three and one-half feet below grade at each test pit and experienced little or no water movement and seepage began to emanate around the test levels after the start of the testing. Additionally, our representative collected tube samples of the near surface soils which were subjected to laboratory tube permeameter testing, the results of which also exhibited low permeability rates of less than 0.2 . . . V - • • • * . ‘ ' . I . . . ‘ ♦ ’ inches per hour. Since groundwater seepage was encountered in the test pits, our representative also , tv. .v;. ' jfij ■-(, , H ■■ ■ ■ :':/•) : v : . ' p performed field pit bail permeability tests in each of the test pits to estimate the permeability of the subsoils below the seepage levels. Based on the measured inflow and assuming a stabilized water level equal to the observed soil mottling levels encountered in the test pits, permeability rates of 1.6 inches per hour and 0.3 inches per hour were recorded at depths of 11.5 to 13.5 feet below grade in Test Pits 1 and 2, respectively. The low permeability rates and high soil mottling levels and seepage levels should be considered when evaluating the type of stormwater management system which may be appropriate at the site. Please contact us if you have any questions regarding this report.

PSE&G Pace 14 The Mowing Plates and Appendices are attached and complete this report: Plate 1 - Site Location Map Plate 2-Plot Plan Plates 3A through 3E - Logs of Borings Plates 4A and 4B - Logs of Test Pits Plate 3A - Unified Soil Classification System Plate 5B - USDA Soil Classification System Plates 6A and 6B - Gradation Curves Plate 7 - Atterberg Limits Determinations Plate 8 - Soil Box, pH, Sulfate and Chloride Test Results Plate 9 - Subsurface Profile Plate 10 - Suggested Foundation Overexcavation Detail Plate 11 - Equipment/Structure Loads Appendix I - Previous explorations by MTA within the West Orange Station Appendix 11 - Limitations Appendix III - Post-Construction Settlement Calculations Respectfully submitted, MELICK-TULLY and ASSOCIATES, P.C. MRD:TEH/mh 5165-243*1D (6 copies submitted)

s a, RANCIS < 'Js BYRNE 3 WEST N ATIONA A DISO ISTO Rl< CS E <3 A r~ nNMi *Uap gf Csmm County* provtdoO by Slot# of Now Jonty. Dopt. at TranapartaHan, DMtfon ol Informofton Tochaology, fturoou at Intormatton Managomant A Toahnatogy Planning OoograpMo Information Syotamo. MEUCK-TULLY AND ASSOCIATES, fc Cootodmteal Englnoon jk'.'nuJflumonLJ « umronniiniw vonsuiniiui South JOB NO. 3163-243*10 088SO (732) 331-3400............ RLE NO. SITE LOCATION MAP W. ORANGE SWITCHING STA. IMPROVEMENTS LIVINGSTON, NEW JERSEY PSE&G Oft 8Y 24898 l . VJtt . 6 CHK. BY DATE SCALE MRS 4-20M1 jz&aoof PLATE L

v\, ’ AtL^-sggfr^ ru uj* <* r <<ct£77? ui ipii?\ >\^ tt ' 797.G6' . .. \ (i •■ by -3 r- . » s ' « r-’vf Z. - - ............. \ .»®. , , Or^rUJ VJ /'LSBH-2 '-.. . • v?9^ 1 V*'!'. .............. *«,'/» \ < v• \ :or<j? '•Pint? ..................................... '■ a \ V — -Nil I.•s~'-i-----------------v,.......... a----------- ivt'Jj - *’ •f . •> V.0 *TPIP*HCiERVET----- ,J ‘V ■* i^iy ca*Mf.r t• * ci dt etjKtnew A’, ,« :•« - Ji:.fc «»;»vrtsr.vi'in _.i . <£ t , S 03‘02.’52“ &'•" ' £- \ Vi» ,SBH-1 Wr. */ // V,i 0 ’ \ i f\ '■■ f ...• ■ x i I \ •. , •—-■Vi v «-’$ i SOIL RESIST I YiTY pr TEST AREA \ 7f- # / i HA.'IMA'ft \' , ,*r—■ .A****. / \' 1J #\\ >\\ 'ri4L •< . « > •• -$( 5)" ir X . *' C ' ^• i i» / 'v'*iA <* / * < J: S$S A . r •U r--------nrm *.N ^2 • V', cViA i b'\ Li r” £5 /.or; gSir ' ''1 ly V Li «s» -> • V:?. •I. v •• * \ \ \^v '// If-. ,o ILj. /•' 'Wf* all il^ll 6G- ■*;1 a J'ljgsJ; \ /.07 2fl U * *Jt - ' y t v ,.i ><n \ 11 \ ’ ASSH-4 13 3 I) u tp-1| T’-'L 1. This drawing is pari of Melick—Tully and Associates, P.C. Report No. 5165- 243*10 and should be read iogether with the report for complete evaluation. 2. General layout was obtained from a drawing prepored by PSE&G, entitled "Inside Plant-Proposed Test Boring t-orii, locations West Orange Switching Station" dated 12-21-10 (revised 3-22-11), noi to scale. COT H PLOT PLAN 1 si .is Oi !4\ for*. __ - y- _ l_ _ _ _ _ _ _ _ _ ■_ "j If ^ i ^ vI ,, W. ORANGE SWITCHING STA, IMPROVEMENTS WEST ORANGE, NEW JERSEY PSE&G : -N - 6G2'02i37'--W- '7oxv't SOIL RESITIVITY ' h TEST AREA S <L iTP-2 1.^ LOCATION NOTES: 1/ ■& Or V .H5J1 NUMBER AND APPROXIMATE OF TEST PITS PERFORMED IN 2002 MAR( V'--------- UP"->L' --------- ■jH'- LOCATION A' INDICATES NAME, APPROXIMATE LOCATION AND DIRECTION OF SUBSURFACE PROFILE ■! » ?'u •'• \4<‘, * '■ i 1 <p I - NUMBER AND APPROXIMATE OF TEST PITS PERFORMED IN 2003 i-sei ?• \ if \ . !»*> OF 20C tor M a liv * si NUMBER AND APPROXIMATE LOCATION TEST PITS PERFORMED FOR THIS STUDY (18) DEPTH IN FEET TO SURFACE OF DECOMPOSED AND WEATHERED BEDROCK t.T il Li •U#\ i TP-1 LOT 45 pp-2 .-w;*;ii>vv?"' v |n-«^ ldvan:in | 1_1 tr'-.y v 1 r r-. 1.l-y il 7 ■—-< "V '* «U> .r* \\ hV %r 1 VvM ^ •> ,Y> 1 OF 60 " v' • // L N/F ___ TP-1 ; HUMBER AND APPROXIMATE LOCATION BORINGS PERFORMED FOR

|n-«^ ldvan:in | 1_1 tr'-.y v 1 r r-. 1.l-y il 7 ■—-< "V '* «U> .r* \\ hV %r 1 VvM ^ •> ,Y> 1 OF 60 " v' • // L N/F ___ TP-1 ; HUMBER AND APPROXIMATE LOCATION BORINGS PERFORMED FOR THIS STUDY MEUCK-TULLY AND ASSOCIATES, P.C. Geotechnical Engineers & Environmental Consultant* 117 Conol Road South Bound Brook, New Jersey 09B80 (732) 356-3400 ____ ’"Ip":/'"-,7. ------ >- ---------h— * * ■ - MOUNT PLEASANT AVENUE JOB NO. OR. BY VJD FILE NO. 5165-243*10 CHK. BY JJRO DATE 5-18-11 24898 SCALE r=ioo' PLATE 2

DRILLING COMPANY: GDI LOG OF BORING DRILLER: Mike Granese DRILL RIG: Mobile B-59 MTA FIELD ENG. Kim Tully JOB NUMBER: 5165-243*1 D N: 713235.8 E: 559248.1 WATER LEVEL: Not enc COMPLETION DATE: 4/14/11 BORING NO. SBH-1 SURFACE ELEVATION: +614 ft (±) z <o DESCRIPTION UJ i 1 i U) -2" Stone -ML. 51 1 2 552 53 1 0 - 54 55 56 5 1 2 3 3 10 10 14 16 16 23 20 11 20 17 19 17 16 16 24 35 36 37 '4iol?F FILL - Brownish gray clayey silt, some fine to medium sand (moist) Yellow-brown clayey silt, little fine to / \ medium sand (moist) 24 13.0 43 SC Red-brown fine to coarse sand, some silty clay, trace gravel (moist)(medium dense to dense) 5- 36 10- 40 15.9 - grading to and silty clay 51 100/1’ • auger refusal @ 13’ on possible cobbles and boulders, moved hole 5' south and augered to 17* with hollow-stem augers 15- 15- roller bit from 17' to 20' Highly weathered and fractured basalt 20- -auger refusal @ 20' 20- 50/0" Boring completed @ 20’ 25- 25- ‘Hand excavated to 3’ 30- 30- NOTES FOR COLUMNS: 1. SAMPLE AT AVERAGE SAMPLING DEPTH 2. INDICATES THE NUMBER OF BLOWS TO ADVANCE A 2" OD SAMPLER A DISTANCE OF 12 INCHES USING A 140 POUND WEIGHT FALLING 30 INCHES SOIL DESCRIPTION MODIFIERS: TRACE 0-10% LITTLE 10-20% SOME 20 - 35% AND OVER 35% MELICK-TULLY AND ASSOCIATES, P.C. Geotechnical Engineers and Environmental Consultants Typist/Date: mrd/mh 5/11 Sheet: 1 of 1 PLATE: 3A

DRILLING COMPANY: GDI LOG OF BORINO DRILLER: Mike Granese DRILL RIG: Mobile B-59 MTA FIELD ENG. Kim Tully JOB NUMBER: 5165-243*1 D N: 712981.5 BORING NO. SBH-2 SURFACE ELEVATION: +613.5 ft {*) WATER LEVEL: 13* __ _____ 1' .1 ...... ....... COMPLETION DATE: 4/14/11 g $0 I DESCRIPTION Hi D i i 3 i i 3“ Asphalt over 8" stone FILL -Dark gray fine to coarse sand, some ysilt, trace fine gravel 51 17 552 53 10- 15- 12 | i 12 5 7 10 11 14 17 14 18 19 18 15 45 54 100/3" 55 4 56 4 57 12 58 3 23 ML 12 16.4 31 37 100/3" 12 33 10i 13.4 SC V Yellow-brown clayey silt,t, little fine to Vnedium sand (moist)(stif fmoist)( stiff) % Reddish brown silty clay, and fine to medium sand, trace fine gravel {moist){stiff « j ; Vto hard) Red-brown fine to coarse sand, and silty Vclay, trace fine gravel (moistXdgnse) A- Highly weathered sandstone (moist)(dense) 100/5" 100/5" 58. CL: /• FILL - Brown clayey silt, some fine to coarse (moist) sand ................ Highly weathered and decomposed basalt - (wet) @13* 88 100/3" 15- auger refusal ® 16'-3'' 20- 20- Boring completed @ 16-3" Groundwater encountered @13* 25- 25- "Hand excavated to 3’ 30- 30NOTES FOR COLUMNS: 1. SAMPLE AT AVERAGE SAMPLING DEPTH 2. INDICATES THE NUMBER OF BLOWS TO ADVANCE A 2" OD SAMPLER A DISTANCE OF 12 INCHES USING A 140 POUND WEIGHT FALLING 30 INCHES SOIL DESCRIPTION MODIFIERS: TRACE 0-10% LITTLE 10-20% SOME 20 - 35% AND OVER 35% MELICK-TULLY AND ASSOCIATES, P.C. Geotechnical Engineers and Environmental Consultants Typi3t/Date: mrd/mh 5/11 Sheet: 1 of 1 PLATE: 3B

DRILLING COMPANY: GDI LOG OF BORING DRILLER: Mike Granese DRILL RIG: Mobile B-59 MTA FIELD ENG. Kim Tully JOB NUMBER: 5165-243*1 D 2 <n e. X > S § i N: 712933.0 BORING NO. SBH-3 SURFACE ELEVATION: +606 ft (±) 2 <0 S (O | 4 O Ml p- 5<iQ24‘i 1 WATER LEVEL: Not enc COMPLETION DATE: 4/15/11 5 2 Ui DESCRIPTION -J o 3 § i i * i. CL * ill w Red-brown and yellow-brown silty clay, some fine to medium sand (moist) LL = 34%, PL = 20% • * S1 12 S2 18 S3 10 5- 10- S4 12 S5 12 67 11 10 8 10 10 11 12 12 10 10 69 18 11 1A Red-brown fine to coarse sand, and silty clay, trace fine gravel (very moist)(medium dense) 18 15- 0 22 18.5 SC 27 10- 33.6 - SM/ML - - Yellow-brown fine to medium sand, and clayey silt 24 15 21 S7 m 31 79 5• 20 13 13 S6 “ - with occasional layers of yellow-brown clayey silt, little fine to medium sand (wet)(stiff) LL = 47%, PL = 33% 15■ " t 4lU“ SS 12 21 24 54 30 46 20- Highly decomposed basalt (moist)(very dense) I ! 25S9 22 14 40 25- 106 66 100/4" Boring completed @ 26-10" 30NOTES FOR COLUMNS: 1. SAMPLE AT AVERAGE SAMPLING DEPTH 2. INDICATES THE NUMBER OF BLOWS TO ADVANCE A 2“ OD SAMPLER A DISTANCE OF 12 INCHES USING A 140 POUND WEIGHT FALLING 30 INCHES Groundwater not encountered • "Hand excavated to 3' 30- SOIL DESCRIPTION MODIFIERS: TRACE 0 -10% LITTLE 10-20% SOME 20-35% AND OVER 35% MELICK-TULLY AND ASSOCIATES, P.C. Geotechnical Engineers and Environmental Consultants - Typist/Date: mrd/mh 5/11 Sheet: 1 of 1 PLATE: 3C

DRILLING COMPANY: GDI DRILLER: Mike Granese DRILL RIG: Mobile B-59 MTA FIELD ENG. Kim Tully JOB NUMBER: 5165-243*1 D LOG OF BORING N: 712575.8 E: 559055.7 WATER LEVEL: 14' COMPLETION DATE: 4/15/11 BORING NO. SBH-4 SURFACE ELEVATION: +583 ft (±) ' 2 DESCRIPTION £ l lI ML 51 12 5- 10- 52 18 53 12 54 12 55 4 56 12 15- 20- 25- S8 11 12 13 13 6 26 14 11 20 17 12 10 7 13 14 22 40 50 22 12 6 6 9 16 Yellow-brown clayey silt, little fine to medium sand (moist) | Red-brown fine to coarse sand, and silty clay (moist)(medium dense to dense) 25 12.6 5- 40 29 SC t 27 10- 13.0 - weathered basalt fragments 72 15 Highly decomposed basalt - hard drilling @ 15’ S7 15- 100/0" 100/0" 20- 100/2" 100/2" 25- Boring completed @ 25' Groundwater encountered @ 14' ‘Hand excavated to 3' 30- 30NOTES FOR COLUMNS: 1. SAMPLE AT AVERAGE SAMPLING DEPTH 2. INDICATES THE NUMBER OF BLOWS TO ADVANCE A 2’ OD SAMPLER A DISTANCE OF 12 INCHES USING A 140 POUND WEIGHT FALLING 30 INCHES SOIL DESCRIPTION MODIFIERS: Typist/Date: mrd/mh 5/11 TRACE 0 -10% LITTLE 10-20% SOME 20 - 35% AND OVER 35% Sheet: 1 of 1 PLATE: 3D MELICK-TULLY AND ASSOCIATES. P.C. Geotechnical Engineers and Environmental Consultants

DRILLING COMPANY: GDI LOG OF BORING DRILLER: Mike Granese DRILL RIG: Mobile B-59 MTA FIELD ENG. Kim Tully JOB NUMBER: 5165-243‘1D BORING NO. SBH-5 COMPLETION DATE: 4/14/11 t <0 cc e | s DESCRIPTION I CO l DEPTH (fL) $ £=> § 2 o SYMBOL SAMPLES DEPTH (fL) i I N; 712364.6 SURFACE ELEVATION: +601 ft (±) WATER LEVEL: T ^ ^6" Topsoil ★ S1 6 S2 7 S3 12 C/f 410Q 5- 10- S5 S6 12 12 15- 22 23 13 34 34 74 44 4 POSSIBLE FILL - Yellow-brown clayey silt, little fine to coarse sand (moist) | POSSIBLE FILL - Yellow-brown fine to coarse sand, and silty clay, trace gravel (moist)(loose) 21.5 21 14 44 45 5- 6 11 99 21.5 CL 18 21 19 22 “ 12.2 43 8 CL Light gray silty clay, little fine to medium Vsand (wetHstiff) LL = 30%. PL = 18% ^ Red-brown silty clay, and fine to coarse sand, trace gravel (wet)(very stiff to hard) Red-brown fine to medium sand, and silty clay, trace gravel (wet)(loose to medium dense) 15.0 S7 10 10 1 14 10 24 - * 15- SC 20- 10- - grading to fine to coarse sand, little silty clay, little gravel (wet)(medium dense) 20- Highly weathered basalt 25- S8 4 100/4" 25- 100/4" Boring completed @ 25'-4“ Groundwater encountered @ T - "Hand excavated to 3' 30- 30NOTES FOR COLUMNS: 1. SAMPLE AT AVERAGE SAMPLING DEPTH 2. INDICATES THE NUMBER OF BLOWS TO ADVANCE A 2* OD SAMPLER A DISTANCE OF 12 INCHES USING A 140 POUND WEIGHT FALLING 30 INCHES SOIL DESCRIPTION MODIFIERS: Typist/Date: mrd/mh 5/11 TRACE 0-10% LITTLE 10-20% SOME 20 - 35% AND OVER 35% Sheet 1 of 1 PLATE: 3E MELICK-TULLY AND ASSOCIATES, P.C. Geotechnical Engineers and Environmental Consultants