K e e g a n L a ndfill T e c hnic a l Upda te NJSE A Bo a rd Me - PowerPoint PPT Presentation

K e e g a n L a ndfill T e c hnic a l Upda te NJSE A Bo a rd Me e ting June 20, 2019 1

Summa ry o f Wo rk Upda te 2

• Ma y 8 – Mo nito ring Sta tio n Ope ra tio n • Ma y 23 – Sub mit Air a nd SW Pe rmit Applic a tio ns • I nc lude s GCCS De sig n Dra wing s • Sub mit re spo nse to NJDE P c o mme nts • Ma y 31 – Air • June 11 –SW • June 17 – SW • Ma y 29 – Sub mit E missio ns E stima te s pe r ACO • Ma y 31 – Sub mit ACO Pro g re ss Re po rt • June 18 – Re so lutio n fo r Co nstruc tio n Co ntra c to r

Co nstruc tio n Sc he dule 4

GCCS Co nstruc tio n Sc he dule Activity Approximate Duration Mobilization Week of June 24 Trench Excavation 8 ‐ 10 weeks VerticalWell Drilling 2 weeks Flare Skid Installation 5 days System startup 2 days • Full ‐ time operation of GCCS expected by end of September 2019 • Ahead of ACO schedule to submit proposal by September 30, if requested 5

a ndfill Ga s Co lle c tio n a nd Co ntro l Syste m L 6

Ga s Co lle c tio n a nd Co ntro l (GCCS) Syste m • Ve rtic a l g a s e xtra c tio n we lls • Drille d into wa ste ma ss • Ho rizo nta l c o lle c to rs • HDPE la te ra ls a nd he a de rs • Blo we r to e xtra c t g a s fro m the we lls • F la re to c o mb ust c o lle c te d g a s • Go a l: Ma ximize L F G c o lle c tio n to re duc e o do rs 7

8

ISSUED FOR PERMITTING 5/31/2019 SCS ENGINEERS SITE PLAN 1 STEARNS, CONRAD AND SCHMIDT NEW JERSEY SPORTS CONSULTING ENGINEERS, INC. & EXHIBITION AUTHORITY PH. (845) 357-1510 FAX. (845) 357-1049 1 DE KORTE PARK PLAZA, POB 640 2019 LFG COLLECTION SYSTEM LYNDHURST, NJ 07071 KEEGAN LANDFILL 4

K e e g a n L a ndfill GCCS • 28 Ve rtic a l Ga s E xtra c tio n We lls -1,140 ve rtic a l fe e t • 6 ho rizo nta l c o lle c to rs • Ab o ut o ne mile o f ma in he a de r pipe • Ab o ut ¾ mile o f la te ra l pipe • Va lve s fo r iso la tio n • 5 c o nde nsa te dra ins • 1 skid-mo unte d utility fla re 10

Ve rtic a l E xtra c tio n We lls De sig n Pa ra me te rs • We ll De pth 40 to 50 fe e t • Bo re ho le s 36” dia me te r • Ca sing is PVC • Bo tto m slo tte d - sta rt 20-30 fe e t b e lo w g ro und surfa c e • T ypic a l “ra dius o f influe nc e ” – 100 fe e t • ~200 fo o t spa c ing o n la ndfill

Vertical Well Drilling 12

13 Extraction Well Installation

14 Extraction Well Installation

15 Wellhead

Ho rizo nta l Co lle c to rs De sig n Pa ra me te rs • I nsta lle d o n fla t pla te a u o f la ndfill • Pe rfo ra te d pipe in a g ra ve l tre nc h • 6-inc h HDPEpipe • Dra in pits a t lo w po ints • So lid pipe to o utside slo pe s to pre ve nt a ir intrusio n

L F G Co lle c tio n Piping • Pa thwa y fo r L F G fro m we llhe a ds to b lo we rs • Pipe ma te ria l: HDPE • Size d fo r ve lo c ity a nd pre ssure dro p • De sig n inte nt is to ha ve mo re va c uum tha n ne c e ssa ry a t a ll we lls. We llhe a d va lve is a djuste d to re duc e va c uum to ne e de d le ve l • Pipe slo pe d to pro mo te c o nde nsa te dra ina g e

re nc hing T

re nc h Pipe Pla c e me nt in T

Co nde nsa te Ma na g e me nt • L F G is sa tura te d with wa te r. • As L F G c o o ls, wa te r c o nde nse s • T e mpe ra ture dro p is a ffe c te d b y pipe le ng th, wind, flo w ra te a nd whe the r piping is a b o ve o r b e lo w g ra de . • Qua ntity o f c o nde nsa te pro duc e d is a func tio n o f flo w ra te a nd te mpe ra ture diffe re ntia l

Skid-Mo unte d Blo we r/ F la re • 15-hp b lo we r with 500 sc fm c a pa c ity • 6-inc h utility fla re with 750 sc fm c a pa c ity • 24-inc h dia me te r mo isture se pa ra to r • Auto ma tic shut-o ff va lve • F lo w me te r with c ha rt re c o rde r a nd re mo te mo nito ring • Pilo t fla me a sse mb ly a nd ig nito r • Co ntro l pa ne l fo r a uto ma tic o pe ra tio n 21

22

Odo r Co ntro l Pla n 23

During Co nstruc tio n • Minimize o pe n tre nc h • No o pe n b o re ho le s, tre nc he s o ve rnig ht • Odo ro us wa ste fro m drilling / tre nc hing dire c tly o nto truc ks • Sto c kpile d c o ve r ma te ria ls to c o ve r o do ro us wa ste • Mo nito ring sta tio ns a c tive during c o nstruc tio n • Odo r ne utra lizing a g e nt dire c t a pplie d • I nspe c tio n o f a ll disruptio n a c tivitie s 24

Odo r Ne utra lizing Ag e nt • Ne utra le ne b y Air Ca re • Ab so rb e nt filte r • Suppre ssio n o f dust, pa rtic le s • Sa lt tha t a c ts a s so lve nt a nd surfa c ta nt • NOTa ma sking a g e nt • Use d a t Mo nmo uth Co unty a nd o the r NJ L a ndfills 25