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Home My WebLink About20241079.tiffEXHIBIT INVENTORY CONTROL SHEET CASE USR23-0042 - MICHAEL BOULTER FARMS, LLC, CIO LIBERTY POWER INNOVATIONS, LLC Exhibit Submitted By Planning A. Commission Tyler Page # Description Resolution of Recommendation Planning B. Commission C. Planning Services D. Applicant E. Planning Services F. Planning Services G. Planning Services H. Applicant Development I. Review J. K. L. M. N. O. P. Q. R. s. T. V. Summary of Hearing (Minutes dated 4/2/2024) PowerPoint Presentation PowerPoint Presentation (received 5/7/2024) Updated Ambient Analysis and Noise Impact Analysis (received 6/4/2024) Traffic Study (received 6/4/2024) Updated Traffic Study (received 6/10/2024) Updated PowerPoint Presentation (received 6/11/24) Updated referral and requested changes to the Resolution (received 6/11/2024) 2024-1079 EXHIBIT WELD COUNTY, CO USR23 0042 b a Applicant: Michael Boulter Farms, LLC, c/o Liberty Power Innovations, LLC Planner: Chris Gathman Request: A Site Specific Development Plan and Use by Special Review Permit for an Oil and Gas Support Facility (Compressed Natural Gas (CNG) Station) in the A (Agricultural) Zone District. Legal Description: Lot B Amended Recorded Exemption, AMRE-4936; being part of the S1/2 S1/2 SW1/4 of Section 31, Township 5 North, Range 64 West of the 6th P.M., Weld County, Colorado. Location: East of and adjacent to County Road 49; north of and adjacent to County Road 50. RoliTHI LE r a US' >12 INCH HIGH PRESSU U qtr USR11 ' 1 17 NATURAL ON 1� j sUP-139r:. USR1S:0056 12 INCH HIGH PRESSURE NAT G S p U R;1- 024 NON -1041 MAJOR FAC. >10" PI E SR18-12-0014 4- INC F.AT 13 ,P I �`� _•'� 6-.Rf - - flUSR12-LXQ'Bs MIE ROW a 'T UTILITY 115 FM IliEKE + � MuSR'1'6-1B-000 MJUS 18-12 119 > INCH HIGH PRESSOR '~NAT GASMINER .L ESOU LEWIN FAC, USR 10 ERDAL I L R E -C r FA I r --r c n USR 24006 40441 M I1OR FACILITY I USR-1479 SINGLE FAMILY DWELLING 18-0021 SINGLE LE ILY ittl USRIO-000 OIL & GAcaS WORT' Lk R-1701 E O ��DI �ME ;ERVICE USR13-0O& NON:117417.1-6 6AT: GAS LIN PRO P. USR1 UO AG & HrPRTr .IILTURE S �,e g} Oj WC 4 114V R - 8 USIA` COMMERCIAL R DEO/ROPI ,% ARENAS tJ S R -1"13 7' L I AIRTkIP LAS PALLET & SERVi E MUSga IRiFAAI [}FC Pi CA MINER [tre tE L G 4 ?trt - MU SR18 UU atamp. • 10INC H NATI:GAS S TAild N --. JSI 7: r:+1 \usRwiwia 1 PRESSURE NAT:GASMICROWAVE TO ►'ERI I . �1U4 MNOR FAC. ›.10" PIPE 8;005.6 ._ ;°1 INn Mal PRESSU ' E SAT GAS 4 Attie 1��- tas ''1 .21CattiPP �-` INCH HIGH PRESSURE NAT G.41 :NERAIJFiECOURCE BEV FAO il -met— ,, - NATURAL GA P. a �� JBLI 'TfITV KV E USR-1419 SINGLE FAMILY DWELLING USR18-O021 HIGH PRESSURE NAT GAS �`�qp��r T,��6J4�iC �� . � r�,, MIC RO �°�At E: . r, Ed t 2L O FT L 4 _ WATER SJcwXE FACILITY USR18-0077N-ONTi0.41' OVI-Aj OR, FA( ILI,TY-7PIPE 'LAIL_ I— IS ,1..11 t-% iirt!' 1 I v -r41110 IJSR131 Norutair rar — -- f L i-raq NON -1041:161N00 'n USR20�� 0 yy MLJ LTIAlIL10'ELL IN BED & BREAKrA *FAC SR11-0016 TJSRi2 N I U GAS PIPE NENON-1041 MA �J I � -0021 =y86 WELD COUNTY, CO uski2M .0k81 BED & BREAKFAST -FACILITY -_ - . . •__. _ .. et --` _ - 4,USR11-0Qd. NON -1041 MAJOR FAOLI USR-1479P SINGLE FAMILY DwELLIh WELD CO N m WELD COUNTY ROAD USR23- LIBERTY POWER INNOVATIONS, LLC COMPRESSED NATURAL GAS TERMINAL ! 2G41' -a" CENTER SOUTH SOUTH 1/64 COR. SEC. 31 REBAR 30'-0"(E) PIPELINE ESMT 70'-O"(E) TEMP CON5T. ESMT NORTH USR BOUVDRY co M W - W _ SOUTH USR BOUNDRY WELD COUNTY ROAD 50 PLOT PLAN SCALE: 1 "-1001-d, Oll-X OH' cla -- I I 1 c 0 X ,00 0 x IIIIIII,IUluIIIIIIII 0 0 0 o m X X. 0 O I -. ml 89.6' 10'-0" (E) ELECTRIC ESMT AO _ Il 240'-1246" I I 4, s U 1 - 1r -,1 -H - 11-- - Vu - W - r1 — N- it - rl — ;+ - f! - fh- W _ - N1= W- - W - W -- (ltllf---'SFf =X -`• a, -OH X- OH -X-- ' -X- - -X --K. ' 097'-915/48" / I 40'-9"(E) PIPELINE ESMT 3D'-3" :E) PIPEUNE ESMT 1..- 11 I I •- ^ n I NCI I � !( It !1 rr I _ H I / II ' X - OHX - - 04i - X*--- X OH---X- EXISTING ACCESS // SOJTH 1j4 COR. SEC, 31/SEC. 06 ALUM. CAP PLS. 38458 SIV rt N C I. Z m . my 1 PRELIMINARY NOT FOR CONSTRUCTION TINS DOCUMENT :5 PRCUMINARY IN NATLRE AND IS NOT A FINAL SIGNED AND SEALED DOCUMENT THIS DRAWING HAS NOT BEEN PUBLISHED BLT RATHER HAS BEEN PREPARED BY ZAJ ENGINEERING & CONSTRUCTION SERVICES, INC. FOR USE BY THE CLIENT NAMED IN THE TITLE B_OCK SCLELY IN RESPECT OF THE CONSTRUCTION, OPERATION AND MAINTENANCE OF THE FACILITY NAMED IN TIE TITLE BLOCK AND SHALL NOT BE USED FOR AN" OTHER PURPOSE OR FURNISHED TO ANY OTHER PRY WITHOUT THE EX'RESS CONSENT OF ZAP ENGINEERING & CONSTRUCTION SERVICES, INC REFERENCED DRAWINGS DRAWING REVISIONS DRAWING NUMBER TILE REV DESCRIPTION BY CHK APVD DATE A ISSUED PRELIMINARY JUN EH SV 08/03/23 ZAR ENGINEERING & CONSTRUCTION SERVICES, INC. LIBERTY CNG STATION PLOT PLAN FOR PERMIT JOB NO: 123083 DRAWING NO: 494102-G01-102 PLOT SIZE: ANSI D SCALE: AS NOTED REV: A WELD COUNTY, CO I 1 i LINE TABLE CURVE TABLE I 1 KEY MAP I INF # LENGTH (FT) BEARING CLIRVF # LENGTH (FT) RADIUS (FT) DELTA CHORD BEARING CHORD LENGTH (FT) Tin I y -- I tt •t -`` _ J ----c---•-.---""---“- LI 25.74 N82' 25' 43.77"C Cl 5.53 5.00 63.33 N65' 5t' 20'W 5.25 (P) PIPELINE ESA9T REC hIa I 1 1111 �w 'Il 0/4 S� l L2 C2 6.08 5.50 5.77 m 12.24 534' 14' 23.85'[ 63.33 665' 54' 20"C 75N BMW L3 35.18 SB2' 25' 43.77"W C3 9.17 6.01 87.50 S12' 00' 3B"W 6.31 1 f-3 < o N.T.S. @T P60 ll CAST ZINC S&3! SCC a,, L4 13.62 N34' 11' 23.85"W C4 B.51 5.50 813.63 N10' 01' 3a -"E 7.69 CC ?TN,n fly' r ri ( r MICHAEL BOULTER I N. > 00 -s. L5 160.87 S55' 45' 36.15"W CS 7.59 5.00 87.02 N75' 21' 45"W 6.89 REC. NO. 4380238 \ I- USR/LEASE -- z iutt ".!"� u+� `, t 1 BOUNDARY L6 112.67 $61' 07' 33.95"W C6 8.35 -5..50 87.02 S75- 21' dy"E 7.57 I i \ IR PARCEL (TYP )1 ,_ —. fr�:r., / 17 18.78 11.31' 51' 0311"W C? 5.17 50.00 5.97 NW' 70' 5R"F 5.16 70 0' "' ` 1_3USN ROLINI)ARY '----^•' I (P) 71-4404!'B'yyrESr1ST 1 I REC NO 1 (TYP) LB 3.94 1134' 14' 23.R5"W C8 22.03 50.00 25.24 N7(? 4S,' 0A"F 21.85 CONTROL POIPT NL r — — — _�_ 2" ALUMINUM CAP ON NO. b I NO -5 - — — — 1.9 154.00 N255' 4F' 36:15"F REBAR CSS 1/64TH SEC 31/32 I COUNTY ROAD 50 LID 102.46 N61' 07' 38.36"E r AP/ / O7— /2.7—/371.5 (I ei&1f/N/ UPRR F877 —i4' USR PARCEL BOUNDARY (TYP) NORTHING: E,4STING: 1371729.46 I 32 5291 2. 42 01 17.31 S31' 51' 03.11"E / NCI ±t tNt/f&Y UVL r 1f�J( P&,4 7//812O79 I _ ELEVATION: L I 4798.64 i I �1- I I • CAUTION!!! 1 m I bUKILU LLtCI RIC — ULF' IHS UNKNOWN J`, rr 70.0' LAYOUT LEGEND �i('C) £LLC711'/C C3XIT ALL BERMS TO BE KEYED A MIN. 2' INTO EXISTING GROUND. SEE LAYOUT AND GRADING NOTES SHEET 1010 USR/LE.ASE BOUNDARY (TYP) CUNT RAC I VK SHALL VLKIP I LOCATION/DEPTHS & `CLEARANCES PRIOR TO CONSTRUCTION �-- Ie N: 1371661.61- I E: 3252823.38\in m I REC NO. 4447.905 EXISTING (SURVEYED) N: 13/166teitl 2' WIDE BERM l:: -1251818,52 FXIST. RIGHT OF WAY ....... ........ . ' N: 3 /1868.41 1 . NI 1371653,81 ........ .... ....... .... .. ......... ,...... .........,...A .... ...., ... `�,- • ............................... ... e�y.�-„m! ernes--- ° LE/ �e—e.... N . . E: 32 52737.06 '.'::::: .....o........-.r�aier.-..-"�.isY�...._�n.... J n o ........................ ............... PP! :. . ..... . - PARCEL BOUNDARY/USR BOUNDARY ........ ................... . !—' ,.w-r:edu�'—tlaet_:':: C........... ... .. ..— .... .�-.-.nn....-...—e r.nu--.ew'.-•--,-Fo�i�,T-eci��nY—h6A.PW..x"!t�`'`.'......... ."'®iw..:^_'s:,e.,.-" m'. :.' :. m ..... ........ ....... ....... .... ._... ... .. .. ... .. .. .. ..... ..... .. ... ... ... N. 1371656.31--• •-• IVI 1371833.07 ..rn • :: : .:.. . ' -. - - _. •--. -.:..:.-.-..• ":. '. .. ..... .. .. .� 3: .:.• EXIST, EASEMENT LINE : .• ...'-.. .. '.' E. 3_5_008.05' . .. ..... .... .- .. .. ----- E• SZO183�_B3 .. - .. ... .._. ....... .... ..... .... ... ...... - ..... ... ...... ....-... -_ - .... .... ... �..�...� T N. 1371035.52 _,_, E: 3252796.6531 .r� Y" BOUNDARY MONUMENT/CONTROL POINT C. 3252009.34 "' m EXIST. EDGE OF GRAVEL 1 _ o -- •t EXIST. EDGE OF ASPHALT I 6 O _ I x X. •K �J Y X_ x. G x x x x —E E LXISI, BURIED ELECIRI LINE & IHANS O MLK 1 r\•- = X `C ' _ • -• - _ - _ N. 1371089,81—. _ I ' I' -N: 1371581.23 -• . . - - - - - - - - - . . E: 3252293.40 ' - -- "�"'-. 1: E: 3251891.43 _ -' - - '- �+" N: 1 371528.99 —w-ex-w-w-w I FXIST OVFRHFAII FIFC:TRIC IINF, P01 F Re GUY ... I_ E: 3252646.90 IL 1 x {{ 3 I I (v)' IV: 1371537.63 H ri r ;/ / r EXIST. BURIED PIPELINE . L► _ _ E: 3252634.41 • .. 2' WIDE BERM "{ ' ., _ L1� W W EXIST. BURIED WATER LINE }1 L . . GRADE . . . . . .. BREAK (TYP) - 4 - I•}l ' . 4! - - - 3 15 " _ IV: 1 7 04 48 - - E: 3252 • 055,36 -• I-I'l' . - ' II' 1 _. N: 1371510.97 \ , • E: 3252679.80 �\ •' - - . ... N 1371536:57 ...... . >�-- • FXIST. GAS WFI I -.I. •I I I�l I U N❑ 1371505.99-....... .'I N: 1 A71504.4? —3... ..N...... E 3252796.65 N: 1371502.96 •.^•i : I x - - - - - - - 0. .�.I. , < - ' . E. 3252164.35 . t' '� (d �' . . } _ E: 3252681.67 \y �C) = :r` N \ E '\\.•. 1371506,14 3252688 36 NC E1 3251635.42 l �p . r 1371482 09 1 fl — " q� . rte N. E 32526 71.53 CC 1 . ... 1 _ _ . . . I _ - ... - . ...•� ; r . I . ' 1 , - . _ ' N: 1371489.51 �® I dGZ E 3252627.40 • •- N: SJ1d77 &9 I m I PROPOSED N: 1371452.99 .'. Q.1 _ ,.-, . I, ,, 2' WIDE BERM ... ' �r p 1025 w _ �,- .• • ; •. •°` E 3_ 776 61 ' 252 y E: 3251841.80 . - • - 1 �� '! N: 1371438.93-' • M: 137141„ 89 E: 3252627.77 •,.. ,>,,,,�, N 7371446.04 • •,r 2 WIDE 1 I BERM II a PROP, SITE ACCESS/MAINTENANCE RO, N: 1371452.63 j , - , - • - , • , - _ _ _ , - E: 325'2269.2q ' . -!•j N: 1371.1 41.56— ' ._ E. 3252674,58 • •N: 37150.63 Cy CONTROL LINE E: 3251838.81 . , . .. . . • I •_ - E. 3252613.01 N 1371443.11 .. ;'• .'. V:. E: 3.252789,12 Q _ _ PROP. EDGE OF ROAD/ROAD SURFACING • •• .: {k >G _ ' - .' N: 13714 59.00 1 N: 1371457.48 v ' °' E: 35�165.00- .—. .. N: 1371424.95 7. + - rz: — — - ^r --• N: 1371433,40 "". ''�/ o._,c`' 3 5267962 ^. N. 1371440.38 ;,•_ y,'r N. 1371414.08 -- - - 2 - - - a .' ., N: '1371429.67 E: 3252619.38 -CS E. 3252703.53 X X X PROP, 1 % C: 3251893.66 .. ', IL•E: -.-. .• :. .'.- :. F 375?056.01 - • - r E: 3252171.98. .. •X x • . .. / /. . N:2137144019 �E• 3d � 2295.63 s / E 3252685.06 �. -.•• • • • -' �•.. 1 II 1371384.49 FENCE X X x ic: x b:�„-_.,-_, •'�.�''c-f...- ,: .' I,II rN: PROP, CULVERT & F.E,S. —N: 1371425.73 i� .e,. '/ ✓ '�^ Sd+ �� •• O� ' E. 3252&46.60 ®'� [LENGTHS INCLUDE F. E:5.] -.4 N• 1371395. D8 - 1 E: 3252012.25 N: 12521 ❑ E: 3252252.78 2.7 \ \ i c' / 0 •, ^ • e r CO. a S� 1 SUS �,_ `� /" '�.; '�so ". IX I I �N: 1371367.31 I F'Ror. FOND STRUCTURE & RELEASE P rE N: 1371378,87 E: 3251848.19 \ 1 t1 E 3252007.67 �N: 171389.46 a \ r ! : 2 • = N 137149 •\O o u 50 - •9'' \\\!!!1 :- ' / E: 3252846.61 �N: 1371078.91 OUTLET N: 1371378,08 E: 3?51844.21 t .1 --:1 ip4 - , Tf- E: 3252266.47 �!. C 313257214:2994.:1508;::::::;;;;. 252694 <�^.yxF:.. _ n N: 13714o03s -• ' WIDE BERM �',!'.•f N' 1371405.06 : E: 3252115786 Oa �� l-`� ��' �: ^ -1-1-1-111 /� y- E: 3252856,60 ../ I I N: 1^71373.33 —" —' —' — PROP. SWALE/CHANIV EL/DIVERSION CENTERLINE —mul-s•x-me�m� PROP_ TOP OF BERM (`.FNTFRI INF �••N: ` E: 3 52866.60 NI: 1371.303.79 � }: -. _ ¢. - 'y -/ N: 1371344.17 110' WIDE BERM N: 1371381.35- `N: 1371377,69 E: 3_51,1,08 E -1252616.96 I,ill41 /.19 �. - t: S2D'1(i63. V'L••. �• •'N 1J/1.191. OU -••• - t: S2JLf9ti_49'`•'� I I 1 \ `�j-N: 1371370,70 �J /% �� PROP. BURIED PIPELINE - - C: 3251669.83 E: 3252166.08 - . � N: 1371413.50.', • �' E: X251850.56 N: 1371303.25 - t • •: •1 .:: .... m API: 1371331.22 E 3251896.85 v /- ��•F�;{ .. E: 325262291... ..: 't' �•...'.• :'_. • '. • " '.'' • -.:':: N: 1371342.88 E: 3252796.26 •: � • " .- ,00 •` I II E: I 1 3252869.41 I LOVE WATER CROSSING E: 3251836.00 4y '• f"o...tp� M IV: 1s/TD12.9d 1.1: 1371310.90 N: 13712©1,-19 r` , - E: 3_5_003.78 E: 3252330.23 1e. . _• •'.:':: •': •'•':::.. '. • :. ^-'-•:!R"!'�'9."— , • • - • • • • • 3 • • - It 1371285.36 : - - N: 1371335.24 - •; . ... ••• • •' -- 3 ;:" -- N: 1371353.91 pi "I �: } I 1028 I LWi ( ) SURFACING LEGEND 1422 0 p�'%` 7 L: -12019-16.02 •7� i�` N 1-1/1309 66 E: 3252355 27 y 1 C: 3252653,21 e 25260/ F_ i757R,3A R4 s ^ Ci ! �N: 1371309,04 1026 6 $$ . NI: 1371279.47 ` ...:. \2 L 3 4B rl: I : , -. / F: 3757868.65 + jaw,`. -:. ____ I-� .. .. .. 1 F 1 ROAD/TRAVELED WAY — 10" THICKNESS . -a E: 3252330-R9 \ i. C3 - 1&2 - L - - J O Tm.' '-• . ..•......._ 1 ; .=} N: 1371311.44 X23. ( N: 1371306,80 [CDOT CLASS 5 OR 6 AGGREGATE BASE COURSE RE: DTL 1/1010] LOW TAILWATER (. )..1 N: 137127.,.01 " �;i • . • - • •.... • . • -.. ,. CI '' - �N: g• I E. 325 286 7.99 BASIN - ^• • • • • • • • •'•'•' E: 3251888.57.:.:.:.:....:.:.::: L__ -� • •-• • • • • • • • •-•••• •- • 1027 1025 1d/1.w9.1U E: 3252828.95 I F . .T (?� PAU ANLA WI IHIN PROP. FENCE — (i" IHICKNLSS •_5 18.5' I' ',. N: 1371.103.79 :..- ..''77 E. 3252331.28 _••• L3 �� e .. .... T ._-C4 •.'. L. ,i2b2ti//.dtl 10' WIDE BERM m N: 1371375.80 L��1 V [COOT CLASS OR G AGGREGATE BASE COURSE RE: OTL 1/1010] IV: 137127.5.95 r._� - : F: 3751871;68 - '• .': .. _ - a N: 1371270.59 -, .3�: R•. -N• 137177478 .- N. 1371264.99•• 1` ..' 1 F: 3752866.64 ,. 17.7.7.77.7.7.1 EXTERIOR - 4 THICKNESS E• 3251851 65 I -:.� • .�. • • 1 .V. '.' , ;._I N: 137163.0.. - 1 - C: 3252319,41 ` 2\ - }; F• 32503Rd -.i -' E: 3252604,49 '• vi N: 1371342.55 1""' "" "1 [CDOT CLASS 5 OR 6 AGGREGATE BASE COURSE RE: DTL 1/1010] :: ..... •" '.1.2 7 I C 328_040 02 ^r.^.. r IPROTECTION RIPRAP EROSION — 1026 .. ....... E: 3252004.46 ... ----- Ll.. / ,. �_�_ _......... .. .. . . . . ... y �'. �'..-' `F'� : A.'.'.'.'.'.':::.'.'... .. ors mil I LI- . _ .,,.x�.��,1 U 1. = J [TYPE L RE: DTL I & 2/1025] N: 10 /124/:40 .. -... ^..:; ... .... .... ....' .. ... ... �...- _ .. .. .. .... _ - .. ...•... ...... 35.94'-`.')s' N, 1 9712.10.00 NB9 I &'31 E' --'.':.''�"+. • - .'.-'.Nt•1 � . �? ' -Cx - 's*r.�"'. 'sPn--^.'. .. - N: 1371262._2 US7 PARCEL BOON ARY I I BURIED KIPKAP PKUILCIIUN .. .-... .'.'._.. - . ...—. ‘o—^ ae e .. ... E- 3252098.75 • "••''. �.._. -:. � —a � -Y : aT. Ca-; ... '. �•' E: 3292 t •1 ITT --7•7-7-7,-1 -11i:Li E: 3251849.61 • +6dei-reou=e ..j • T°5.81 C7: ... -I-� _ I D ... . .•. .. i L-.' [RE: DTL 1/1026 & 1/1027] - / ..... F1 ... ... .. - N: 1371236.80 ._:- .. — ' "" •lIJ1• , , , . ' 'Qbr�=Mrs— • • ,� ..... 1 D' WIDE BERM • -LOW TAILWATER BASIN TA.IL6 / N ....:.':.::: hl: 13712493a�".: _ p" 0Oi„ •• �J -.:: E: 3202075 14 �. : 0G Al: 1371239.8&.1r $ �. ..-. _ _ + — '' .. / i 1i . ..�:.. .'- E: 3252009.67:.::. ................... fr E: 3252327.76 r I ((ice-'- 1027(NO DETENTION/WO POND 102 - BASINS D2 & D3) N: 1'7234.10 I-: 10� WIDE BERM 1— Z• WOE BERM Nc 1371786.3?� BUILD NO STORAGE) / / �T� s �h ��--(P 5.0' -h1.' 1371223.80 3 F: 32A2.371.93 E: 3-52678.29 / 1 i } ACC85S DETENT10NfW4 POND (01 - BASIN Dl) �N; 1371249.64 POND INV: 4791.50 ../ I $ E. 3251825.20 (NO BUILD/NO STORAGE) CHi 1025 E: 3252416.93 TOP OF POND (BERM): 4796.00 �/.9E-c• ASC,y / 1 I NQ ENT LAYOUT NOTES ; --'`�� POND INV: 4799.25 11- 137124732 EM. OVERFLOW CREST: 4795.00 i`- j / I TOP OF POND (BERM): 4802.50 E: 3252388.52 REVD/PROVO O W0CV: 0.15 AC -FT MICHAEL BOULTER & f4i SY BOULTER; , J y 1. SEE SHEET 1010 FOR LAYOUT NOTES. EM. OVERFLOW CREST: 4801.50 REO'D/PROUD WOCV: 0.05 AC -FT WOCV w.S. E.: 480D.27 MICHAEL BOULTER FARMS, LLC '-N: 1371261.93 E: 3252361.82 REC NO 4078640 N: 1371270.54 WOCV W.S.E,:4792.79 WOCV RELEASE RATE: 40 HR RFO'0,/PR Mtn 1110-YR VON 0.74 AC-FT114.1' I REC NO 251995'1 1 i / I A �;' I ' - I 7 SFF SHEET 1010 FOR RFN CHM ARK J4 RASIS OF RFARLIJG INFORMATION T� WOCV RFI FASF RATE- 40 HR REO'D!PROV'D 100-YR VOL- 0,19 AC -FT LOT B C: .3252378.13 AMENDED RECORDED EXEMPTION No. 0963-3'I-4 AMRE-4936 PROUD 100-YR W,S.: 4794.18 100-YR RELEASE RAT[: 2.8 C15 1115T 10-YR) ( AMENDED ^L171T I I-tEC`.UkUtU tXtMF' I ION(' I d W • 'I- I PRov'o 100 YR ws.: aBo1.2D Rec. No. 3799965 TOTAL PROVO: D: AG -FT Nonn , % . 09'63-31-4 AM RE -4936 / tout Sec s, /3rv, /re'aly 1DO—YR RELEASE RATE. 0.7 CFS- (HIST 10—YR) TOTAL VOL PROVE): 0.23 AC -FT (AT EM. OVERFLOW CREST) AT .O1. RES hKLL OARU: OVERFLOW1.00 I ICREST) `(FROM EM. OVERFLOW CREST) 1 Rec NO 3/99965 • / 1 1r� r {y / �uulr/ FREEBOARD: 1.00 FT I/ NOR 77-1 LINE SEC 61 TAN, R64rfx '� / 'f �/ r�/ /�I i F i /AM/II i V {FROM EM. OVERFLOW CREST) >--/r'`�if x . x i ! x // /.— ICI' 7/ /r'� I ` 1 /r /I ! / I / // // ��—/ 1 ��' r' i r-%,�' �' /i % // /`� ��, / 1\ I rI //-11----// / W W W 1/ f ;J VJ ur YJ w w +• w1 -(— N h1 _ I W W W w� W - W W W __ COUNTY ROAD 60 T iv '4 •43H .v --4', ^� I " — Olt' —C#H---=r.H—v_Ott—� �7R FSJ�rt:+r, ✓-1_4 ` "-4't—' ---ZAY =f.1-1 � ra Y R D i l �R—" �iTV _ P80_ —airy rikt— —' X13•' �C wt Qn —x311 - C1 RAMS OF BEARING — Na9.0T54"E p /6 7c r C:AUT1oN!!! CONTROL POINT ML31621 -CONTROL POINT ML31823 SOUTH UNE OF SOUTHEAST QUARTER OF THE Q Q 1i �' i1! �A CAUTION BURIED UTILITIES (WATER & ELECTRIC) 2" ALUMINUM CAP ON NO. 5 EAST BASIS OF BEARING POINT ma Pi 117W11 unnn•uarwaemu SOUTHWEST QUARTER SECTION 31 -T5N R64W oS .I (OVERHEAD ELECTRIC & PIPEUNE — DEPTHS UNKNOWN / ALUMIf11UM CAP ON NO. 5 1371074.27 REBAR N 1 4 SEC 06 2"iii UTILITY NOTIFICATION CENTER V 4� ^1 CONTRACTOR SHALL VERIFY LOCATION/DEPTHS do --------EBAR S 1/4 SEC 31 FASTING: 32588,x,82 N THING: 1371074.79 lie E O 25 50 100 OF COLORADO :b- S./ ELEVATION: 4786,68 EELEVATION254786,44 a PRIOR TO CONSTRUCTION? 84 4CLEARANCES M I (or 800-922-1987) �` �� AT PRELIMINARY NOT FOR CONSTRUCTION SCALE; 1" - 50' DAYS BE OREOYODUDIGE55 www,cdaNtlotntorg IHI5 DRAINING HAS NOI BEEN PUBLISHED 1101 KAIHLF HAS BEEN PREPARED BY ZAP ENGINEERING & CONSTRUCTION SERVICES, INC. FOR USE BY THE CLIENT THE CONSTRUCTION, OPERATION AND MAINTENANCE OF NAMFI') IN THE TITI F RI OCK SOI Fl Y IN RFSPFCT OFZiAir I HE FACILI IY NAMED IN IHE I II LL. ULUCK AND SHALL NOT BE USED FOR ANY OTHER PURPOSE OR FURNISHED TO ANY OTHER PARTr' WITHOUT THE EXPRESS CONSENT OF ZAP ENGINEERING St CONSTRUCTION SERVICES, INC. REFERENCED DRAWINGS DRAWING REVISIONS ENGINEERING S. CONSTRUCTION SERVICES, INC. REGISTERED FIRM STATE: REGIS ILRLD FIRM NUMBER: LIBERTY CNG TERMINAL LAYOUT PLAN DRAWING NUMBER TITLE - REV DESCRIPTION BY CHK APVD DATE A ISSUED FOR PERMIT LJM JME 08701/23 - JOB NO: 123063 DRAWING NO: 404102 CO3 1001 REV: PLOI SILL:ANSI D SCALE: AS NOILD A WELD COUNTY, CO .d • . Mi\skcilnea(Wkig,'S COnteMing this properly will be heard t1/4 County Planning Commfission and Board of County Comrnissioners. both 'bean' •ici:. . win be hell at: COUNTY ADMINISTRATION (Greeley, CO 80631 -c- • r 4 0 a QUM Street V=w\t %n 4; ;flc1, C rrr"nr ,i !TISK) r hit Tahr)Q win ho hold tin ) So Pte' I 'r r� - L1o. 4f11P494 0#it 1 1 _,1�ftlfU will .!" Y'lieic �.�'#.*.t.. 1 ,.• 9 � _, 6_i6 x41~.31 if =Tatireserallp ramikeest as roar tia-c- r r'a-.s ifs , -,r-.-._._ tere. A-' friii.C1,S. ._ -.- . e3fa inc-; s:i: >K r —f .as. -L r_ 1Ian t _a#?ETlF, • sr . t , ear Ro .- ....v. .�i-1 ri L - -.t: s. - LL a it R . • ...P �- M - A • •1 *. i d cif R "1=. ',An loss rrMem OF -11 yr: is pircp miss, be heard e the County Planning Corrialisstari Ektard of Couri40 orm, s+ . Both harA rA VS tibe d ar- W E L. D CO4LI NTY ADMINISTRATION 1150 '1O" Street a Greeley, Plann Commission Kea Isiff be twieki elstemiL 20zot at )730 roi Boani of County Oammissionot Weanngte on Rogioktr• A Si to Specthc Lam 'v'el prmi► •! r'A+�"+ a n c Use try Special' Review Permit kir an Oil laid Gas Support & JC-fl","t'hr (Compressed Natural' G00.5 (CNG) l isZro_t - - - -{no nunritini PC' N FIJRIRF F vs,�• ''PAT PLEASF CONTAC a4 T4C 1 rte•-. Ira .fit lrr•► 4c „a<- ^.�- r - i=rT1 f�• - - �- Y'FS'T _ � 1 r 1-t ■I WELD COUNTY, CO GAS PLANT TO THE EAST - a r • N 'L n ism ,I B tt- rd • as:assi • niretfi r 1 •1 Tom' p •� 41^. raE a .tom: � • �r�.z r - 8111 KIP git Ili —et do 6�...-mss t_ r ffi•` 01: . id .•111,.m .1 JAW a- a cid WELD COUNTY, CO WELD COUNTY, CO v4k s. N 1861�K..•zf_ iit, _ L i t WELD COUNTY, CO 1,n I P. °ll a r silk 4 ! A A' 1 ,A igeg it I 4de t WELD COUNTY, CO kit Ls r .t rti hA " r •, •a .R • a• t V1• - M • A S r'.i 4 , m Y a!• n , '• • d A V t.4.• • . i • • I . 1 L._ id i , . 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', ". i Ia - �. a i. • , ". : . - I J i` J M a a S 'kA N 1861�Aid iit, _ L i t WELD COUNTY, CO ram rat cC Ar- may i-. - n r - .. - - ^lT p] e • fir' n {liar..• -a • _ an ■ .1. al r`t.AA virali. 9'r _ Si n p • " ■I WELD COUNTY, CO WELD COUNTY, CO THE SOUJ HWE WELD COUNTY, CO WELD COUNTY, CO "Sam l ] ama xa tit taker16 ilic i N 41, r at 4 Ti P • It _,?'r 7.i 'S.!, p Illfill Y • ■I WELD COUNTY, CO End •f U 2 0 42 Liberty Flower Innovations Boulter Site Walkthrou h Agenda • Liberty's Commitment to Weld County • Community Commitment • Site Overview and Impact Mitigation Details Liberty's Commitment to Weld County • Liberty has been providing oilfield services in the DJ Basin since 2O16. • Liberty employs over 1,000 Coloradans. • Liberty specifically developed the Quiet Fleet to address the issue to noise pollution in the DJ Basin. • Last year, Liberty donated over $5OO,OOO to Colorado communities. • Last year, Liberty employees volunteered over S00 hours in Colorado, nearly half of the time spent volunteering was in Weld County. • Notable Weld County partnerships include: o Purchased K9 for Hudson Police Department o Habitat for Humanity- Greeley/Weld County o Weld County Food Bank o Arbor Foundation o A Precious Child o Feed the Children Liberty employees with Gary, Hudson Police Department's K9 Why is a CNG Terminal Needed? • • Colorado Need • Oilfield services traditionally rely on diesel to fuel drilling and frac activity • Over a decade ago, Liberty led the industry in deploying dual -fuel technology, beginning a trend of displacing diesel with natural gas • CNG Terminal Purpose • Today, Liberty & others are displacing diesel in both dual -fuel and pure natural gas -fueled equipment • A CNG terminal provides centralized supply of compressed natural gas for reaching well sites that do not have access to fuel -quality natural gas pipelines • Benefits • Displaces diesel fuel use • Reduces diesel particulate pollutants • Reduces overall field CO2 emissions • Reduces overall cost of oil and natural gas production Local Community Commitment • Location selected due to proximity to development activity & existing oil and gas operations, including gas plant to the east, higher -capacity road access in all directions • Liberty desires to be a good neighbor • Met several times with nearest residential neighbor, Amy & Virtus Banowetz, and collaborated on ways to further mitigate impact to their property & business • Limiting traffic during outside event times • Investigating options to add visual and noise mitigation to their property • Will continue to engage neighbors on a regular basis curity -Road-50 Noise, Visual, & Traffic Abatement Noise Control: • Compressors will be installed with sound attenuation • A sound attenuation study was performed during the design phase to ensure that the facility's planned operation is within commercial limits Visual Mitigation: • Solid (non -see-through) fencing will be installed around the equipment area • Berms with natural grass will surround the facility • Will assist with neighboring property improvements Traffic Impact: • The site can fill up to 2.7 trailers/hr, with projected normal operations trailers/hr • 1 truck every 20-45 min • Traffic projected to be split east and west from site, further cutting local impact • Final traffic analysis being submitted to planners, target end of May i i I 1 Oft .: F i Lighting Plan Ars. trw,ti"ri'sr�IL"�yr`�`� ink I I J Lighting will be directional, downward facing, and localized to critical equipment areas and fill posts on the east side of the site .4 L1 IF'i CF. TT B L: h .Iwo.-. • • • All buildings will have exterior lights mounted just above egress doors Load posts and key process areas will have stanchion mounted lights at an elevation of 25' (mostly on east side) Lights will be directional, to limit light pollution Jessica Reid Subject Attachments: Updated ambient analysis and noise impact analysis (US 3- 2) E24037 Ambient 2024.05.14.pdf; E24038 Noise Impact Analysis 2024.0524.pdf; RE: Commercial vs Light Industrial Noise Statute Clarification? From: Andrew Sommer cAndrew. rnen+ar libe aowerinnovations.corn> Sent: Thursdays May 30, 2024 4:50 PM To: Lauren Light c ' t weid.ao ; Ryan Fernandez <.fa�ndeztoweldsov>; Chris Gathman occizathmantowejOegovn Melissa King c aking@weid.eov> Subject: Updated ambient analysis and noise impact analysis (USR23-0042) Caution: This email originated from outside of Weld County Government. Do not click links or open attachments unless you recognize the sender and know the content is safe. ALL We've received the completed noise impact analysis, and live attached both that and the ambient analysis we discussed a couple weeks ago. A quick summary of what we're proposing: • Upgrading the facility design (improve compressor buildings and install quieter cooler fans instead of a sound wait to the north) to ensure we are reducing sound In all directions, in order to ensure the impact to the Banowetz's is mitigated o Modeling indicates this reduces sound to the west by 3.2 dBA, and will no longer raise noise in that direction above current ambient levels • As discussed on the previous email thread (also attached for easy reference), committing to a 65 dBA 24/7 Limit around the facility Happy to answer questions on the new details and pull in the Urban planning folks on a call If you have any technical questions on the modeling or ambient analysis itself. 'e'1t be ready to present on this at the BCC hearing as well as the final traffic study (I'll get that over to you shortly, working final details with the engineers on that one). Thanks, Andrew Sommer manager, Strategic Planning & h% Power Project Execution kmawstions C: 857-7534123 AnduetwaSemrnetaliblirtMowerinnovolthrs-corn 1 URBAN CROUP SOLUTION Ambient Monitoring Report Boulter Farms Weld County, CO Prepared for: Liberty Power Innovations 950 17th St, Suite 2400 Denver, CO 80202 Prepared by: Urban Solution Group, LLC 4230 Elati Street, Suite 200 Denver, CO 80216 May 17, 2024 Table of Contents 1. Introduction 1 2. Summary 2 3. Ambient Monitoring Results 3 4. Notations 6 Appendix 1— Summary Data and Charts 7 Appendix 2 —Sound Fundamentals 13 Appendix 3 —Glossary 16 c� URBAN SOLUTION OPOUP Report Submitted to: Andrew Sommer Liberty Power Innovations (857) 753-0123 andrew.sommer@libertypowerinnovations.com Report Contact: Gareth Svanda Urban Solution Group (720) 749-2916 gareth.svanda@urbansolutiongroup.com 1. Introduction Urban Solution Group, LLC (Urban) was commissioned by Liberty Power Innovations (LPI) to document the ambient A -weighted sound pressure levels at five locations adjacent to the proposed Boulter Farms location near Auburn, Colorado. Key location information is presented below. Site Location: SE 1/4 SW 1/4 SEC. 31, T5 N, R64W, 6TH P.M. Duration: 72 -Hours: Starting at 12:00 a.m. Saturday, April 20, 2024 Ending at 12:00 a.m. Tuesday, April 23, 2024 Monitoring Point (MP) Coordinates: MP1: 40.350225 N, 104.592815 W MP2: 40.348563 N, 104.593431 W MP3: 40.348554 N, 104.596489 W MP4: 40.349173 N, 104.598754 W MPS: 40.350227 N, 104.596495 W Figure 1. Aerial View of Ambient Monitoring Locations and the Proposed Boulter Farms Location Monitoring Point 5 Monitoring Point 4 Monitoring Point 3 Proposed Boulter Farms Location Monitoring Point 1 Monitoring Point 2 Urban Solution Group, LLC I 4230 Elati St. Suite 200, Denver, CO I Phone (720) 749-2916 1 (1) URBAN SOLUTION GROUP 2. Summary Urban collected sound pressure level (SPL) measurements at five locations near the proposed Boulter Farms location to document A -weighted sound levels. This reporting period analyzed sound measurements collected from April 20, 2024, at 12:00 a.m., to April 23, 2024, at 12:00 a.m. inclusive. Figure 1 on the previous page shows the monitoring points in relation to the proposed Boulter Farms location. Table 1 below shows the overall A -weighted SPL averages (Leq) for the 72 - hour monitoring period. The SPL averages presented in this table show the overall sound levels when wind was below five (5) miles per hour. The raw data was filtered to remove data points where wind speeds exceeded five miles per hour, per best practices. Table 1. Overall Study, Sound Level Averages Location Daytime Averages (Leq) Nighttime Averages (Leq) Overall (Leq) Averages B ill - • Monitoring Point 1 52.6 50.8 51.7 Monitoring Point 2 60.8 56.5 58.9 Monitoring Point 3 57.7 54.6 56.2 Monitoring Point 4 52.3 52.0 52.1 Monitoring Point 5 53.8 53.4 53.6 V�JUrban Solution Group, LLC I 4230 Elati St. Suite 200, Denver, CO I Phone (720) 749-2916 (1) URBAN SOLUTION GROUP 3. Ambient Monitoring Results Urban conducted a 72 -hour ambient sound monitoring study from 12:00 a.m. Saturday, April 20, 2024, to 12:00 a.m. Tuesday, April 23, 2024, to monitor and document local ambient sound levels at five nearby locations using Type 1 SvanTek noise monitoring stations. The sound level meters collect measurements of the A -weighted sound pressure levels (SPL) and were each calibrated before and after the measurement period. Wind data was recorded with a weather station attached to the sound level meter at Monitoring Point 1 situated approximately 50 feet northeast of the proposed Boulter Farms Location. The wind is assumed to be the same at all monitor locations. The proposed Boulter Farms Location is located north of County Road 50 and east of County Road 49, near Auburn, Co. The closest road, County Road 50, is located approximately 175 feet south of the proposed Boulter Farms Location. The sound level meters are set to record audio files when the sound pressure levels exceed 55 dBA in the daytime (7:00 a.m. — 7:00 p.m.) and 50 dBA in the nighttime (7:00 p.m. — 7:00 a.m.). Based on the recordings, the most common sounds for the monitoring locations include vehicle traffic, airplanes, and nearby industrial facilities. The filtered A -weighted daily sound level averages for Monitoring Points 1, 2, 3, 4, and 5 can be found on the following pages in Table 2, Table 3, Table 4, Table 5, and Table 6 respectively. The average values presented in these tables are based on filtered data, such that any measurements taken with wind speeds in excess of five miles per hour were removed from the averages reported (per best practices). Figure 2 to Figure 6 in Appendix 1 contain charts with the unfiltered hourly averages and wind speeds for each of the monitoring points. V�JUrban Solution Group, LLC I 4230 Elati St. Suite 200, Denver, CO I Phone (720) 749-2916 3 (1) URBAN SOLUTION GROUP Table 2. Filtered Daily and Overall Sound Level Averages for Monitoring Point 1 Description Day 1 Day 2 Day 3 Overall Average Average Wind Speed (mph) 3.6 2.8 3.3 3.2 A -Weighted Levels Daytime — (7:00 a.m. LADay (dBA) - 7:00 p.m.) 51.3 50.3 54.0 52.6 Nighttime (7:00 — p.m. - LANight (dBA) 7:00 a.m.) 48.5 50.0 52.6 50.8 Overall LAeq (dBA) 49.8 50.1 53.4 51.7 Table 3. Filtered Daily and Overall Sound Level Averages for Monitoring Point 2 � vera Average rescripson ay.. day Pay Average Wind Speed (mph) 3.6 2.8 3.3 3.2 A -Weighted Levels Daytime — (7:00 a.m. LADay (dBA) - 7:00 p.m.) 60.4 58.2 61.9 60.8 Nighttime (7:00 — p.m. - LANight (dBA) 7:00 a.m.) 53.8 55.5 58.6 56.5 Overall LAeq (dBA) 57.5 56.8 60.5 58.9 Table 4. Filtered Daily and Overall Sound Level Averages for Monitoring Point 3 Description Day 1 Day 2 Day 3 Overall Average Average Wind Speed (mph) 3.6 2.8 3.3 3.2 A -Weighted Levels Daytime — (7:00 a.m. LADay (dBA) - 7:00 p.m.) 58.0 55.0 58.6 57.7 Nighttime (7:00 — p.m. - LAN;ght (dBA) 7:00 a.m.) 50.4 53.0 57.3 54.6 Overall LAeq (dBA) 54.8 53.9 58.0 56.2 V�JUrban Solution Group, LLC I 4230 Elati St. Suite 200, Denver, CO I Phone (720) 749-2916 4 (1) URBAN SOLUTION GROUP Table 5. Filtered Daily and Overall Sound Level Averages for Monitoring Point 4 Description PDayDayDay 3 Overall Average 1 Average Wind Speed (mph) 3.6 2.8 3.3 3.2 A -Weighted Levels Daytime (7:00 a.m. LADay (dBA) - 7:00 p.m.) 48.5 48.5 54.5 52.3 — Nighttime (7:00 p.m. — LANight (dBA) 7:00 a.m.) 46.5 50.0 54.9 52.0 - Overall LAeq (dBA) 47.3 49.5 54.7 52.1 Table 6. Filtered Daily and Overall Sound Level Averages for Monitoring Point 5 Description Day 1 Day 2 Day 3 erall Average Average Wind Speed (mph) 3.6 2.8 3.3 3.2 A -Weighted Levels Daytime (7:00 a.m. LADay (dBA) - 7:00 p.m.) 54.3 47.8 55.3 53.8 — Nighttime (7:00 p.m. — LANight (dBA) 7:00 a.m.) 50.6 50.8 55.9 53.4 - Overall LAeq (dBA) 52.4 49.8 55.6 53.6 V�JUrban Solution Group, LLC I 4230 Elati St. Suite 200, Denver, CO I Phone (720) 749-2916 (1) URBAN SOLUTION GROUP 4. Notations The services provided for this project were performed in accordance with generally accepted professional consulting services. No warranty, expressed or implied, is made or intended, by rendition of these consulting services or by furnishing oral or written reports of the findings made. Sound level meter and accompanying equipment serial numbers, along with calibration information, may be provided upon request. Urban Solution Group generated this report for the exclusive use of Liberty Power Innovations. V�JUrban Solution Group, LLC I 4230 Elati St. Suite 200, Denver, CO I Phone (720) 749-2916 r� URBAN SOLUTION CROUP Appendix 1 —Summary Data and Charts V�JUrban Solution Group, LLC I 4230 Elati St. Suite 200, Denver, CO I Phone (720) 749-2916 7 j rURBAN SOLUTION )opoup Figure 2. Chart of Unfiltered Hourly Averages for Monitoring Point 1 URBAN 1021 SOLUTION , GROUP 70.0 60.0 50.0 40.0 C c 30 20.0 10.0 A -Weighted Noise Levels with Wind Speed at Hour Resolution 04/20/2024 12:00 AM Through 04/23/2024 12:00 AM I _ /' - t 1 1 - 1 r 1 1 1 1 11 1 l _ t I 1 1 1 r 1 1 I I I 1 I 1 I % _ f I - I i I I 1 II P 4 1 I�► \, I 11 I `i 11 1 11 I V I f A l'l t, 11 11 41 1 I I \I Ili '1/4 l l I /tats . I /I I_� 1 �I r/ 1 I t 1 rl r 1 r ftt 1 1 _ r X I 1i 1 / I I 1/ I 11 It 1► / _ \/ 1 1 q 1 I I 1 1 1 I 1 1 1 1 I 1 1 1 I I 1 I 1 I I 1 1 II i<sdcflO tX 411 R4 Date and Time ADOcite O ottic XIX LAeq Avg Wind (mph) 10.0 9.0 8.0 7'.0 6.0 s 5.0 lb 4.0} 3.0 2.0 1.0 0.0 AAP _ Urban Solution Group, LLC I 4230 Elati St. Suite 200, Denver, CO I Phone (720) 749-2916 8 (hitt URBAN SOLUTION CROUP Figure 3. Chart of Unfiltered Hourly Averages for Monitoring Point 2 ri�ii 70.0 60.0- 50.0 Zs, -O 40.0 URBAN SOLUTION `� `-"-`� A -Weighted 04/20/2024 Noise 12:00 Levels AM with Through Wind Speed 04/23/2024 at Hour 12:00 Resolution AM LAeq Avg Wind (mph) 10.0 — — - 1 i % - 9.0 - 8.0 - 7.0 —6.0 - 5.0 - 4.0 - I I 1. /1 % I + - I I i / i I y � / I i r I I y i I I l I I 1 1 IL s E. _cu i r I 1 1 1 t I 1 1 i It. i\ + r" %J 1 i I I I I 1 I 1 t h r� t + 1 rl C 0 30.0 20.0 10.0 0.0 .C>dC rbsfivDate -O tv VI .c l ‘ 1 1 I/I �, r I f /�, r / t I _ - _ I I+ r I I I 1 1 1 I i � I r t l '1 1 t V -2.0 - 1.0 0.0 - - A I,4 r '1/ I A I i I i I 1 I I eteOfl'� .4C'� .Obq and Time el .Odq .04� Urban Solution Group, LLC I 4230 Elati St. Suite 200, Denver, CO I Phone (720) 749-2916 9 URBAN SOLUTION CROUP Figure 4. Chart of Unfiltered Hourly Averages for Monitoring Point 3 0 URBAN SOLUTION GROUP 70.0 60.0 50.0 40.0 a, C c 30 20.0 10.0 A -Weighted Noise Levels with Wind Speed at Hour Resolution 04/20/2024 12:00 AM Through 04/23/2024 12:00 AM - r /' % t - - _ _ I I I I ` + I I I I 1 I I I I r ii _ - - i I I I 1 1 1 1 II P S. 4 1 %I I I 11 11 11 r IL 1 1 1 r\ f lit 11 11 -/ 4t �/ /' 1 1/ 1 r 1 1 � I I I 1 ` 1 1 / a' ♦` ''-1 1 l I r t ti 11 1 1 r 1 - - 1 r 1 1 1 / I 1 I a 1/ II - - II q 1 I I 1 1 1 I 1 A A/ 1 / 1 1 I 1 1 1 I I 1 I 1 I I 1 1 II Date and Time ADOcite O ottic XIX LAeq Avg Wind (mph) 10.0 9.0 8.0 7.0 6.0 s 5.0 lb 4.0} 3.0 2.0 1.0 0.0 Urban Solution Group, LLC I 4230 Elati St. Suite 200, Denver, CO I Phone (720) 749-2916 10 URBAN SOLUTION CROUP Figure 5. Chart of Unfiltered Hourly Averages for Monitoring Point 4 0 URBAN SOLUTION GROUP 70.0 60.0 50.0 40.0 a, C c 30 20.0 10.0 A -Weighted Noise Levels with Wind Speed at Hour Resolution 04/20/2024 12:00 AM Through 04/23/2024 12:00 AM r _ 1% - t - _ - rr r 1 I 1 t �t � 1� It - ! / ,1 - _ r 1 II I 1 1 � - r l I I , _ f I - I i I 1 11 P 41 i v� I 1 11 I `iI 11 % 1 I i V I f r - t, 1 I 1 1 I' 4t I 1 '1/4! 1 \l i I Ij r, 1 1 /*3/41 1 1 �I 1/I 1 r r 1 j r t 11 1 1 1 r - ftt - 1 1 - r ft 1 _ �1 f I 1 1 1 a 1j ' _ - +4 r _ '1 II q 1 I I 1 1 1 I 1 1 1 1 I 1 1 1 I I 1 I 1 I I 1 1 II O tX 411 IsCie R4 Date and Time ADOcite O ottic XIX LAeq Avg Wind (mph) 10.0 9.0 8.0 7.0 6.0 s 5.0 lb 4.0} 3.0 2.0 1.© 0.0 Urban Solution Group, LLC I 4230 Elati St. Suite 200, Denver, CO I Phone (720) 749-2916 11 (hitt URBAN SOLUTION CROUP Figure 6. Chart of Unfiltered Hourly Averages for Monitoring Point 5 0 URBAN SOLUTION GROUP 70.0 60.0 50.0 40.0 a, C c 30tin 20.0 10.0 A -Weighted Noise Levels with Wind Speed at Hour Resolution 04/20/2024 12:00 AM Through 04/23/2024 12:00 AM _ r /1 - - _ - I S 1 r / /r 1 1l � - 1 I 1 I I 1 1 I I t 1 1 I - - _ - i f I I I I 1 it i IS► 4 1 %I I I I1 11 r l V `1 1 1 I r\ f A 11 I1 11 / I' 4I ti �/ 1 I 1 1 1 1� 1 1 t ‘ 1 I I I 1 1 / ,., �_/ I \I I r r l 11 11 l r - - _ r r l �1 1 y 1 1 / 1 I I I i 1/ rl _ - _ II q 1 I I 1 1 1 I 1 1► X/ 1 / 1 1 I 1 1 1 I I 1 I 1 I I 1 1 II O tX 411 IsCie R4 Date and Time ADOcite O ottic XIX LAeq Avg Wind (mph) 10.0 9.0 8.0 7'.0 6.0 s 5.0 lb 4.0} 3.0 2.0 1.0 0.0 Urban Solution Group, LLC I 4230 Elati St. Suite 200, Denver, CO I Phone (720) 749-2916 12 OURBAN a SOLUTION GROUP Appendix 2 — Sound Fundamentals Sound is a series of vibrations transmitted through the air, or other medium, and can be heard when they are processed by the human ear. There are two important properties that describe sound; frequency and amplitude. Frequency is determined by the rate of movement and is measured in cycles per second, which is known as Hertz (Hz). A healthy human ear can hear 20 Hz — 20,000 Hz (Figure A). The sensation associated with frequency is commonly referred to as the pitch of a sound. High frequencies produce a higher pitch and vice versa. The amplitude of a sound is determined by the maximum displacement of air molecules produced by the vibrations. These displacements lead to pressure fluctuations in air, which are expressed in decibels (dB). Decibels are a logarithmic ratio of sound pressure over the standard threshold of hearing. The more energy a sound has, the larger the pressure fluctuations, resulting in a louder sound. Figure A. Auditory Field for a Human Ear at Various Frequencies [Gruel and Kjaer] Frequency weightings are applied to measurements to provide a better match between measured results and human perception. Each weighting, in relation to their frequency components, allows for a consistent measurement of the different type of noise sources. A -weighted decibel sound pressure levels (dBA) are measurements recorded from a sound level meter measuring sounds similar to the response of the ear (Figure B). While C -weighted (dBC) measurements are for low - frequency components. Urban Solution Group, LLC I 4230 Elati St. Suite 200, Denver, CO I Phone (720) 749-2916 13 CjiSOLUTION O POUF Figure B. Common Sound Weightings Up to 20 kHz [Bruel and Kjaer] Each measurement has an exponential time factor. Slow time weighting is the most common for environmental noise measurements and will be used for these measurements. For recording over long periods of time, the sound level meter records each weighted decibel reading with an equivalent, or average, continuous sound level reading (Leq). Leq represents the same energy as the actual time varying sound signal (Figure C). LAeq refers to the equivalent continuous sound level for an A -weighted measurement. Figure C: Sound Level Recording Displaying Leq, Steady -State Sound Level, Over a Noise Measurement [Bruel and Kjaer] Environmental noise is a combination of various noise sources. These sources may include; vehicle traffic, aircraft flyovers, wind, weather disturbances, commercial or industrial activities, and other short-term events. These sources create "background noise". Background noise varies throughout Urban Solution Group, LLC I 4230 Elati St. Suite 200, Denver, CO I Phone (720) 749-2916 0..'.•:II URBAN 11I SOLUTION i GROUP Normal Conversation 5,545 dB Quiet Lib &y c4O d the day, generally following the cycle of human activity. Figure D presents typical A -weighted (dBA) sound levels for multiple sources of sound. Figure D: Common A -weighted Sound Levels [City of Albuquerque] Lawn Mower SO dB Instant Hearing •-' a Occurs 140dB I Urban Solution Group, LLC I 4230 Elati St. Suite 200, Denver, CO I Phone (720) 749-2916 CjiSOLUTION O POUF Appendix 3 — Glossary Ambient Noise All noises that exist in an area and are not related to facility. Ambient noise includes sound from other industrial noise not subject to this directive, transportation sources, animals and nature. Average Sound Level See Energy Equivalent Sound Level. A -weighted sound level The sound level as measured on a sound level meter using a setting that emphasizes the middle frequency components similar to the frequency response of the human ear. Calibration A procedure used for the adjustment of a sound level meter using a reference source of a known sound pressure level and frequency. Calibration must take place before and after the sound level measurements. C -weighted Sound Level The C -weighting approximates the sensitivity of human hearing at the industrial noise levels (above 85 dBA). The C -weighted sound level is more sensitive to the sounds used to assess the low- frequencies than the A -weighted sound level. It is sometimes used to assess the low - frequency content of complex sound environments. Day Night Sound Level (Ldn) Is the average noise level over a 24 -hour period. The noise between the hours of 22:00 and 07:00 is artificially increased by 10 dB. The nighttime noise is weighted to consider the decrease in community background noise. Daytime Average Sound Level The time -averaged A -weighted sound level measured between the daytime hours, usually defined as 7:00 am to 7:00 pm. Decibel (dB) A unit of measure of sound pressure that compresses a large range of numbers into a more meaningful scale. The basic unit of measurement for sound levels. dBA The decibel (dB) sound pressure level filtered through the A filtering network to approximate human hearing response. See dB and A -weighted Sound Level. dBC The decibel (dB) sound pressure level filtered through the C filtering network. See dB and C - weighted Sound Level. Urban Solution Group, LLC I 4230 Elati St. Suite 200, Denver, CO I Phone (720) 749-2916 CjiSOLUTION O POUF Energy Equivalent Sound Level (Leq) The Leq is a single -number average, sound level that represents cumulative acoustical energy as measured over a specified time interval. Facility Any operation used in exploration, processing, development and transportation of energy resources. Frequency The number of oscillations per second for a sound wave. Impulse Noise Unwanted, instantaneous sharp sounds that create sudden impulses of pressure similar to gunfire and explosions. Noise Reduction The difference in sound pressure level between two points. Nighttime Average Sound Level (Lnight) The time -averaged A -weighted sound level measured between the nighttime hours, usually defined as 7:00 pm to 7:00 am. Ldn See Day night sound level. Leq See Energy Equivalent Sound Level. Noise Generally understood as unwanted sound. Noise Impact Assessment (NIA) Identifies the expected sound level emanating from operations and receptor points are placed in locations related to compliance. It also identifies what the permissible sound level is and how it was calculated. Noise Reduction Coefficient (NRC) A single number rating of the sound absorption properties for a material. An NRC value of zero indicates the material is purely reflective. An NRC value of one indicates perfect absorption. Urban Solution Group, LLC I 4230 Elati St. Suite 200, Denver, CO I Phone (720) 749-2916 17 CjiSOLUTION O POUF Octave Band An octave band is a frequency band that spans one octave. A band is said to be an octave in width when the upper band frequency is twice the lower band frequency. Octave bands are commonly used in engineering acoustics. The nine common octave bands used for the study of industrial noise are identified by their center frequencies as 31.5Hz, 63Hz, 125Hz, 250 Hz, 500 Hz, 1000 Hz, 2000 Hz, 4000 Hz, and 8000 H z . Point Source A source that radiates sound from a single point. Generally used to model equipment when looking at the sound impact over a large area. Receiver A person or piece of equipment that is affected by noise. Sound A series of vibrations transmitted through the air, or other medium, and can be heard when they are processed by the human ear. Sound Level Meter (SLM) An instrument that contains a microphone and filter used to measure sound levels, using standard frequency -weightings and exponentially weighted time averaging. Sound Power Level A physical measurement of the amount of power a sound source radiates into the surrounding air. It is the rate at which sound energy is emitted, or received, per unit time. Sound Pressure Level (SPL) The sound level received at a given location. The decibel equivalent of the rate of sound pressure waves at a measured location, usually with a microphone. Sound Transmission Class (STC) An integer rating that measures how well a barrier or building partition attenuates sound. Indicates how well a barrier is at stopping sound from transmitting through it. 1/3 Octave Band The 1/3 octave band analysis provides a finer breakdown of sound energy distribution (compared to full octave band) as a function of frequency. Urban Solution Group, LLC I 4230 Elati St. Suite 200, Denver, CO I Phone (720) 749-2916 :0S) URBAN SOLUTION CROUP Noise Impact Assessment Boulter Farms, Compressed Natural Gas Terminal Weld County, CO Prepared for: Liberty Power Innovations 950 17th St, Suite 2400 Denver, CO 80202 Prepared by: Urban Solution Group, LLC 4230 Elati Street, Suite 200 Denver, CO 80216 May 24, 2024 TABLE OF CONTENTS 1. Executive Summary 1 2. Regulations and Noise Standards Summary 2 CRS 25-12 Noise Regulation — Brief Overview 2 Compliance Summary 3 3. Site Information 4 4. Compliance Points 5 5. Noise Impact Assessment 7 Methodology 7 Major Equipment Information 8 Unmitigated Noise Model Results 9 Source Order Ranking - Unmitigated 11 Noise Control Recommendations 12 Mitigated Noise Model Results 14 6. Conclusion 16 7. Notations 16 Appendix 1— Equipment Layout 17 Appendix 2 — Noise Control Acoustic Specifications 19 Appendix 3 — Sound Fundamentals 20 Appendix 4 — Glossary 23 r� URBAN SOLUTION GROUP Report Submitted to: Andrew Sommer Liberty Power Innovations (857) 753-0123 andrew.sommer@libertypowerinnovations.com Report Contact: Danny Havelick Urban Solution Group (720) 749-2916 danny.havelick@urbansolutiongroup.com 1. EXECUTIVE SUMMARY Urban Solution Group, LLC (Urban) was commissioned to prepare a Noise Impact Assessment (NIA) report for the Boulter Farms Site operated by Liberty Power Innovations (LPI). LPI will be operating a compressed natural gas terminal at the Boulter Farms Site located near Kersey, Colorado. The purpose of this report is to assess predicted environmental noise impacts from the existing production operations on the surrounding environment. The results of this assessment will compare the predicted levels of the Boulter Farms Site operations to the maximum permissible noise level (MPNL) limits described in the Colorado Revised Statute (CRS) 25-12 noise regulation. Based on discussions with Weld County representatives, LPI has agreed to an MPNL of 65dB(A) for both daytime and nighttime operations. The results of the NIA indicate the predicted unmitigated sound levels for the proposed operations are likely to exceed the A -weighted permissible noise levels required by the CRS 25-12 noise regulation at the west property line. Urban proposed noise control measures to reduce noise levels of facility operations below the MPNLs outlined in CRS 25-12. Below is a summary of the results. Boulter Farms Compressed Natural gas Terminal Noise Model Results Direction Property Distance & from the Line (fee Permissible Noise ax Level -acilwty Unmitigated acility Mitigated Receptor Receptor A 25 NE 65.0 50.7 44.8 Receptor B 25 SE 65.0 50.0 42.9 Receptor C 25 S 65.0 54.6 50.8 Receptor D 25 W 65.0 50.0 46.8 Receptor E 25 NW 65.0 58.8 54.3 Receptor F 25 N 65.0 65.1 59.6 It is also noted that instead of simply adding a sound wall to the north side of the property line to attain compliance, LPI has decided to conduct source mitigation instead, on both the compressor building and process coolers since this mitigation strategy reduces facility noise levels everywhere, and not just at the north fence line. This mitigation approach is more complicated with additional cost compared to a northern property line sound wall, but LPI desires to reduce the facility environmental noise footprint for all stakeholders in the surrounding area, as much as is reasonably possible. Urban Solution Group, LLC 14230 Elati St. Suite 200, Denver, CO I Phone (720) 749-2916 r� URBAN SOLUTION GROUP 2. REGULATIONS AND NOISE STANDARDS SUMMARY Noise for compressed natural gas terminals located in Weld County, Colorado, are regulated through the Colorado Revised Statute (CRS) Title 25 Article 12 noise regulation. This regulation sets the MPNLs, which limit noise emitted from facilities within the study area over a specified period, as measured at noise compliance points. These allowable limits are dependent on the land use zoning within the study area. An overview of the CRS regulation is presented below. CRS 25-12 Noise Regulation — Brief Overview CRS 25-12 states that operations must comply with the maximum permissible noise levels (MPNLs) in Table 1 below unless otherwise required by CRS 25-12. 1) Every activity to which this article is applicable shall be conducted in a manner so that any noise produced is not objectionable due to intermittence, beat frequency, or shrillness. Sound levels of noise radiating from a property line at a distance of twenty-five feet or more therefrom in excess of the db(A) established for the following time periods and zones shall constitute prima facie evidence that such noise is a public nuisance: Table 1. Maximum Permissible Noise Levels (CRS 25-12-103) Day►tim = Nighttime (7:00 p.m. - 7:00 a.m.) (7:00 a.m. - 7:00 p.m.) Residential 55 dB(A) 50 dB(A) Commercial 60 dB(A) 55 dB(A) Light industrial 70 dB(A) 65 dB(A) Industrial 80 dB(A) 75 dB(A) 2) In the hours between 7:00 a.m. and the next 7:00 p.m., the noise levels permitted in subsection (1) of this section may be increased by ten db(A) for a period of not to exceed fifteen minutes in any one -hour period. 3) Periodic, impulsive, or shrill noises shall be considered a public nuisance when such noises are at a sound level of five db(A) less than those listed in subsection (1) of this section. Urban Solution Group, LLC 14230 Elati St. Suite 200, Denver, CO I Phone (720) 749-2916 r� URBAN SOLUTION GROUP Compliance Summary According to CRS 25-12, the entire property line represents a potential point of compliance: "Sound levels of noise radiating from a property line at a distance of twenty-five feet or more therefrom in excess of the db(A) established for the following time periods and zones shall constitute prima facie evidence that such noise is a public nuisance". In order to ensure compliance with this requirement, measurement points will be chosen in the direction of residences in the vicinity of the proposed location (to be representative of future compliance measurements), and noise contours will be generated to ensure that predicted noise levels do not exceed the MPNLs at any point along the property line of the parcel containing the proposed Boulter Farms location. Based on discussions with Weld County representatives, LPI has agreed to an MPNL of 65dB(A). This MPNL will apply 24/7, for both daytime and nighttime operations. Table 2. Compliance Summary, Maximum Permissible Noise Levels (Unadjusted) DaytimeeNighl-time (7:00 a.m. - 7:00 p.m.) (7:00 p.m. - 7:00 a.m.) 65 dB(A) 65 dB(A) Urban Solution Group, LLC 14230 Elati St. Suite 200, Denver, CO I Phone (720) 749-2916 r� URBAN SOLUTION GROUP 3. SITE INFORMATION The proposed Boulter Farms Site will be located east of County Road 49 and north of County Road 50, in Weld County, near Kersey, CO. The Site is zoned with an Agricultural land use designation based on information from the Weld County online zoning portal. Detailed Site information is presented below, and an aerial view of the proposed Site is shown in Figure 1 below. Site: Lot B, Section 31, T5N, R64W, 6TH P.M. Site Coordinates: 40.349686° N, 104.595750° W Regulation Noise Target: Colorado Revised Statutes Title 25, Article 12 Figure 1. Aerial View of the Proposed Boulter Farms Site Urban Solution Group, LLC 14230 Elati St. Suite 200, Denver, CO I Phone (720) 749-2916 4 r� URBAN SOLUTION GROUP 4. COMPLIANCE POINTS The MPNLs for all operations are applied at noise compliance points. According to CRS 25-12, the entire property line represents a potential point of compliance: "Sound levels of noise radiating from a property line at a distance of twenty-five feet or more therefrom in excess of the db(A)established for the following time periods and zones shall constitute prima facie evidence that such noise is a public nuisance". For the purposes of this NIA, measurement points were chosen 25 feet past the property line, in the direction of residences in the vicinity of the proposed compressed natural gas terminal. These six measurement points are shown in Figure 2 below. Urban Solution Group, LLC 14230 Elati St. Suite 200, Denver, CO I Phone (720) 749-2916 rURBAN' SOLUTION 400 CROUP Figure 2. Measurement Points A -Weighted Measurement Points Proposed Boulter Farms Location 250 500 1000 1500 2000 I feet Urban Solution Group, LLC I 4230 Elati St. Suite 200, Denver, CO I Phone (720) 749-2916 URBAN SOLUTION 5. NOISE IMPACT ASSESSMENT The NIA was conducted for the proposed Boulter Farms compressed natural gas terminal using a three-dimensional computer noise modeling software. This is a predictive model to aid in ascertaining the environmental impact of the proposed facility during normal facility operations on the surrounding environment. The results of this assessment will compare the predicted levels of the Boulter Farms compressed natural gas terminal operations to the permissible noise level limits described in CRS 25-12 noise regulation. A brief explanation of the methodology is presented first, followed by noise model results for the compressed natural gas terminal. Methodology All computer models and predicted noise levels generated for the assessment are developed with the commercial noise modeling software SoundPLAN 9.0. The ISO 9613-1 and 2 international standards are utilized in this software as they are widely accepted both internationally as well as in North America. The algorithms used in the commercial software package are based on methods and theory accepted in the environmental acoustics community. Both detailed equipment technical information and location -specific topography, are used to generate comprehensive noise predictions that take into account environmental conditions, buildings, ground cover and barriers (natural, topographical, and otherwise). Note that actual field measurements may differ from modeled noise levels on any given day due to ever changing environmental factors and other noise sources in the study area not explicitly in the computer model. Table 3 below lists the conditions used in the model. Table 3. Conditions Used in SoundPLAN 9.0 Software Parameter Modeled • - and .e criptia Temperature 55°F — Represents typical summer evening temperature Topography Modeled as is, with proposed location modified per grading plan Wind Velocity 2.2 - 11.2 receiver mph — ISO 9613 uses a slight downwind condition from each noise source to each Wind Direction From the noise source to the receptor points Relative Humidity 40% - Typical summer evening relative humidity Absorption Ground Ranges from 0.0 for water bodies & major roadways up to 1.0 for thick grasslands It is assumed that facility operating conditions do not change significantly between the daytime and nighttime periods. The resulting predicted noise levels are compared to the MPNLs outlined in the regulation to determine if the subject facility is compliant. Urban Solution Group, LLC 14230 Elati St. Suite 200, Denver, CO I Phone (720) 749-2916 7 URBAN SOLUTION The noise levels generated in this predictive model are strictly from normal equipment operations at the proposed facility. Pre-existing sound sources such as those from animals, weather, road traffic, and all other ambient sounds are not included in the noise models. Major Equipment Information Operations and equipment at the Boulter Farms compressed natural gas terminal are implemented per the equipment layout supplied by LPI. The sound power levels used for the terminal's equipment were derived from a combination of manufacturers data, theory, and Urban's noise database in accordance with industry practice. The proposed facility equipment layout for the Boulter Farms compressed natural gas terminal is shown in Figure 6 of Appendix 1. The major equipment sources used in the NIA are shown in Table 4 below. Table 4. Equipment Information Quantity Equipment Descripti. 2 Natural Gas Compressor Hyundai Reciprocating HNP1 503-18E Compressor 1500HP Motor; 2 Compressor Gas Coolers Horizontal standard chord cooler with fan and 144" standard Moore blade fan with tips 1 Compressor Building 105' x wall 50', including panels 34' eave and fan 6" height, forced Fiberglass ventilation. with 24g insulation; roof and 1 Instrument Air Package Building with 2x 15HP screw compressors 1 Chiller 2.7MMBTU/hr, 270ton, 14 fans. 4 PDC Bldg HVAC Units 15 -ton units 2 Office HVAC Units 3 -ton units Urban Solution Group, LLC 14230 Elati St. Suite 200, Denver, CO I Phone (720) 749-2916 URBAN r oRoup SOLUTION Unmitigated Noise Model Results The results of the unmitigated compressed natural gas terminal operations noise model are presented in Table 5 below. The receptor locations in the table correspond to the measurement points identified in Figure 2 of Section 4. The predicted levels of the model only include sound levels from the Boulter Farms terminal operations and do not include ambient noise or noise contribution from other sources outside of the expected operations. Actual field measurements may differ from predicted levels due to varying local noise sources not associated with terminal operations. Table 5. Compressed Natural Gas Terminal Operations Unmitigated Noise Model Results Receptor Direction Property Distance & from the Line (feet) Permissible Noise Max Level Facility Unmitigated dBA dBA Receptor A 25 NE 65.0 50.7 Receptor B 25 SE 65.0 50.0 Receptor C 25 S 65.0 54.6 Receptor D 25 W 65.0 50.0 Receptor E 25 NW 65.0 58.8 Receptor F 25 N 65.0 65.1 The predicted levels only include sound levels from normal facility operations and do not include ambient noise or noise contributions from other sources outside of the planned operations. Noise contour maps are provided for the area surrounding the Boulter Farms compressed natural gas terminal. The contours are provided in 5 dB increments with the color scale indicating the sound level of each contour. An unmitigated terminal operations noise contour map is presented in Figure 3 on the next page. Urban Solution Group, LLC 14230 Elati St. Suite 200, Denver, CO I Phone (720) 749-2916 9 ,�� J� URBAN �''�i SOLUTION GROUP Figure 3. Unmitigated Compressed Natural Gas Terminal Noise Contour Map (dBA) Property Line Noise Level Leq (t) in dB(A) = 40.0 40.0 - 45.0 45.0 - 50.0 50.0 - 55.0 55,0 - 60.0 60.0 - 65.0 65.0 - 70.0 70.0 - 75.0 75.0 - 80.0 80.0 - 85.0 85.0 - 90.0 90.0 - 95.0 > 95.0 200 400 800 1200 1600 ■ feet Urban Solution Group, LLC I 4230 Elati St. Suite 200, Denver, CO I Phone (720) 749-2916 10 r� URBAN SOLUTION GROUP Source Order Ranking - Unmitigated Table 6 lists the sound pressure levels (SPL) for the top ten dominant noise sources for facility operations, as received at the most impacted measurement point (Receptor F which is located approximately 70 feet north of the facility limit of disturbance; 25 feet from the north property line). The sources are ranked from loudest to quietest on a dBA basis. Table 6. Compressed Natural Gas Terminal Source Order Rankings — Receptor F Rank Noise Source SPL (dBA) 1 Gas Cooler 1 59.9 2 Gas Cooler 2 59.9 3 Chiller 55.9 4 Compressor Building North Wall 54.7 5 Compressor Building North Wall Inlet 2 50.6 6 Compressor Building North Wall Inlet 1 50.6 7 Compressor Building North Roof 49.5 8 Compressor Building South Roof 48.4 9 Compressor Building East Wall 45.5 10 Compressor Building West Wall 45.0 11+ Total for Remaining Noise Sources 52.2 Facility SPL 65.1 As seen from the source order ranking table above, the gas coolers, chiller, and compressor building are the largest contributors to the dBA noise levels at the most impacted measurement point. If noise control is desired, it should aim at attenuating the dominant noise sources first, starting from the top of the list and moving down in order. Urban Solution Group, LLC 14230 Elati St. Suite 200, Denver, CO I Phone (720) 749-2916 11 r� URBAN SOLUTION GROUP Noise Control Recommendations Unmitigated facility operational noise levels exceed A -weighted MPNL of 65 dBA at Receptor F. Noise control recommendations are designed to reduce operational noise levels to meet those requirements. Table 7 below lists the noise control recommendations required to reduce the SPL at the most impacted measurement point (Receptor F). The Noise Reduction (NR) is the total reduction in Facility SPL at the receptor by implementing the noise control recommendations. Table 7. Noise Control Recommendations Step Noise Sourc T Noise Control Measure Descriptio ; Receptor F Noise eduction dBA ) Facility (dBA) SPL - - Unmitigated Noise Levels - 65.1 1 Gas Coolers Source low -noise fans for the gas coolers 2.8 62.3 2 Compressor Building Install designed 6" of rockwool fiberglass, ventilation insulation and install openings. in I -style place silencers of the originally on all 2.7 59.6 The specified mitigation is shown in Figure 4 on the following page. Required mitigation includes sourcing low -noise (extended chord) fans for the gas coolers as well as upgrading the compressor building to acoustic standards by installing 6" of rockwool insulation (instead of the standard fiberglass pink) and installing I -style silencers on all ventilation openings of the compressor building. Note when treating sources in order based on the list in Table 6, the chiller should also have been treated in order. However, since the building sources are treated as a unit (for instance, when upgrading building insulation, it reduces all building sources and not just one wall or roof) and the building also needed to be treated in addition to the chiller, it turns out that carrying out the building upgrades removed the requirement for chiller to be treated while keeping noise levels below allowable limits. It is also noted that instead of simply adding a sound wall to the north side of the property line to attain compliance, LPI has decided to conduct source mitigation instead, on both the compressor building and process coolers since this mitigation strategy reduces facility noise levels everywhere, and not just at the north fence line. This mitigation approach is more complicated with additional cost compared to a northern property line sound wall, but LPI desires to reduce the facility environmental noise footprint for all stakeholders in the surrounding area, as much as is reasonably possible. Urban Solution Group, LLC 14230 Elati St. Suite 200, Denver, CO I Phone (720) 749-2916 12 jrURBAN SOLUTION s'GR0UP Figure 4. Mitigation Layout F�Q In PROPERTY BOUNDRY I Q a t 4 I r Lu PROPERTY BOUNDR'r 40 4J w Upgraded Building Process Cooler Low -Noise Fans e PROPERTY OOUPCRY W 7\1\1 -- Urban Solution Group, LLC I 4230 Elati St. Suite 200, Denver, CO I Phone (720) 749-2916 13 ro URBAN SOLUTION CROUP Mitigated Noise Model Results The results for the mitigated compressed natural gas terminal operations noise model are presented in Table 8 below. The receptors in the table correspond to the measurement points identified in Figure 2 of Section 4. The predicted levels of the model only include sound levels from the Boulter Farms compressed natural gas terminal operations and do not include ambient noise or noise contribution from other sources outside of the expected operations. Table 8. Mitigated Compressed Natural Gas Terminal Operations Noise Model Results Receptor Direction Property Distance from Line & the (feet) Permissible Noise Mir Level Facility Mitigated g dBA dBA Receptor A 25 NE 65.0 44.8 Receptor B 25 SE 65.0 42.9 Receptor C 25 S 65.0 50.8 Receptor D 25 W 65.0 46.8 Receptor E 25 NW 65.0 54.3 Receptor F 25 N 65.0 59.6 The predicted levels only include sound levels from facility operations and do not include ambient noise or noise contribution from other sources outside of the planned operations. Noise contour maps are provided for the area surrounding the Boulter Farms compressed natural gas terminal. The contours are provided in 5 dB increments with the color scale indicating the sound level of each contour. A mitigated terminal operations noise contour map is presented in Figure 5. Urban Solution Group, LLC 14230 Elati St. Suite 200, Denver, CO I Phone (720) 749-2916 14 0 URBAN SOLUTION Figure 5. Mitigated Compressed Natural Gas Terminal Noise Contour Map (dBA) Property Line Noise Level Leg (t) in dB(A) <= 40.0 40.0 - 45.0 45.0 - 50.0 50.0 - 55.0 55.0 - 60.0 60.0 - 65.0 65.0 - 70.0 70.0 - 75.0 75.0 - 80.0 80.0 - 85.0 85.0-90.0 90.0 - 95.0 > 95.0 200 400 800 1200 1600 feet Urban Solution Group, LLC 14230 Elati St. Suite 200, Denver, CO I Phone (720) 749-2916 a 15 � URBAN SOLUTION CiP0UP 6. CONCLUSION The results of the noise model indicate that the noise levels generated by LPI's proposed Boulter Farms compressed natural gas terminal are expected to remain below the MPNLs agreed upon by LPI and Weld County at the property line. With implementation of the recommended noise control, facility operations are expected to result in operational noise levels that comply with permissible noise levels required by LPI's agreement with Weld County. 7. NOTATIONS The services provided for this project were performed in accordance with generally accepted professional consulting services. No warranty, expressed or implied, is made or intended by rendition of these consulting services or by furnishing oral or written reports of the findings made. Urban Solution Group generated this report for the exclusive use of Liberty Power Innovations. 7\IV\/\rurban Solution Group, LLC 14230 Elati St. Suite 200, Denver, CO I Phone (720) 749-2916 16 IS SOLUTION MOOED Appendix 1 Equipment Layout Urban Solution Group, LLC 14230 Elati St. Suite 200, Denver, CO I Phone (720) 749-2916 17 .{i URBAN JN ' SOLUTION sGR0UP Figure 6. Compressed Natural Gas Terminal Equipment Layout USR2S- LIBERTY POWER INNOVATIONS, LLC COMPRESSED NATURAL GAS TERMINAL PLANT 1/ 1 h: ISD0'-C' II: 1.100'-0' PROPERTY BOUNDRY • o I I i -- ----. 1 x x k X• Y '-- . X13 S3 I r{ L^ , I __ PR:IPFRIY R711NIlRY X 9 7 O L ra ,tO .,S I 11 1 1, 3 1 °�t J 11111111 F•PE Ce 1CGR \ 8..,-0 m N: 1100'-O' `1 N: '^0r; -D' c c I'� x al 2 :!i* x x r 1 PROPErrr DaUNDRY t. 8 C� :1 h so O I I n o i� 4 ,' ' o - o „o) c v. Pn - it ii w L w :i it ib i .'3' to aZ 1-' O 0 .:I .. is ENLARGED ENLARGED PLOT PLAN sac; I /Iii. - MITER S0O, SCUT I 'R4 0.35. SEC, 51 5Nfi 'L CCR SEC. 31/3EC. 05 .L lid. 71P R S. $62C EQUIPMENT LIST II) rcLlP%1f-NT TA^/NAUi D:1 MT —I 10: IHIr MFTRING Scan 027 F 12X; INLET FILER/COALESCE? OW SK-l3rf: CDORAN1 INJiC101 SKID U3' :SK -0 IUD CPC CCMI't5SUt SKI) rice AC -5'300 CKC CGk4PREa'5CR COCLE? UDE SK-b20U CPC CCMP-IESSLi4 SRIi n47 AC -5u10 CNN. CGMP?_;:5CR COCLE? OW F-5SCU It' LL6E O_ FLIER 943 P-5Al FP LOBE OIL FILTER O'. __ 3K 7240 -RUCK FILL bESPENCE? 011 DK-73:4 1RVC14 nu_ nli.°tN (R 0t2 sic 7400 TRACK LCADCtT S{D 0'.3 SK -75.10 itCK I.Ddl.1CkJ ,dl} 011- lit 2731 CCMPRESSCR CYLINDER WBE OL DAY TAN WE TK-9721 )3UPRI1 W -UK It'll: CII. PAY -ow 0': Tk ii74I GLYCCL DAY T)Nk 0'7 TY,-R7l7 C.IYCCI MY THIN 022 TK V01 SLOP TANK 073 SK -9112 AR CCMPR-SSCI SKr.. 0221- ="GC00 CPC HEAT ESC-IANOER 0PE PG' nun DRit 022". 4': KFIAR 077 1' SEIAR 0222 a tKUP GENERATOR 073 Cf'KY VIA IFR 03C it -9710 RAP TANK MI P -31'C SUM' PUMP 032 SK -&211O CHILIER SKID 0.'.1 DISI PIBU;TEN NFU 032 ?-°201 CHILLER R=CIRC:ILAT4N ?,'WP OS! I{ -62C'2 CHILL_R BLADDER ARK 03F S4 -703C ''.t -I .E LOA0OUT SKID 051 SC -19:4 4t11:.k LQ4UDUI SKID PRELIMINARY NOT FOR CONSTRUCTION THIS 000UMEIE IS PRELIMINARY UI NAIURE AND 5 NO7 A FINAL SIGNED ANC SEALED DOCUMENT -HIS : ?AYi NG HAS 'OT BEE\ PUBLISHED BUT RCHER -:4 BEEN PRE=ARED DY ZA' ENGINEERING c$ CONS -RUC -ICI 3:PACES, NC. ECG USE D" -1IE CLIL\T \AMEU N Hi ILL hILCCK SULLY I', KESPEC 0- -HE CONS-F:UC"ION, OPERATION AND MAIN-ENANCE DF -HF FACII ITY NAMED IN T -F TITLE BLOCK AND SH4JA \OT BE US=D ECR ANY 0 -HER PURPCSE DR FURNISHED TO AV OTHER PANTY W.TI,JUI THE IE LXRRLSS CONSENT OF SAY ENGIIEL,2ING 3 C3NSIRUCIIC\ `__RIVI: NC REFERENCED JRA7IINGS J. -JAWING REvISICNS J- IINC NLWEER IIILE DESCHI''1104 EY CFK AM) _NU ISSUED PRII It11 NARY JI'N PI s\' C9/'O3/7 i ZAR ENGINEERING R CONSTRUCTION SERVICES, INC. LIBERTY CNG STATION ENLARGED EQUIPMENT PLAN 'JOB NO: ' 23;1&3 DRAWING NG!4 4IG2-001-1C3 Pill SIZE: ANSI ? S', A_E-,A$ KITED A 7\1\1 -- - Urban Solution Group, LLC I 4230 Elati St. Suite 200, Denver, CO I Phone (720) 749-2916 18 URBAN SOLUTION GROUP Appendix 2 — Noise Control Acoustic Specifications Compressor Building The compressor building must be designed such that the transmission loss meets the minimum values outlined in Table 9. All ventilation openings (inlets and exhaust) must be fitted with silencers that maintain a minimum dynamic insertion loss (DIL) as outlined in Table 10. Table 9. Transmission Loss (TL) for Compressor Building Source DescriptionLinear Octave Band Cente� Frequency (Hz) er Dynamic Inwtion Loss (dBZ) ill r1125_ 250 51000 2000 4000 8000 Building Minimum TL 8 10 17 26 30 38 41 43 43 Table 10. Dynamic Insertion Loss (DIL) for Ventilation Silencers Source Description Octave Band Center Frequency (Hz) Linear Dynamic Insertion Loss (dBZ) 31.5 63 125 250 500 1000 2000 4000 8000 Silencer DIL 3 3 5 5 10 18 15 10 10 Gas Cooler Fans The compressor process coolers must be fitted with low -noise fans, such that the sound power level (SWL) does not exceed the levels outlined in Table 11. Table 11. Sound Power Level (SWL) for Compressor Process Cooler Fans Source Description Octave Band Center Frequency (Hz) Linear Dynamic Insertion Loss (dBZ) 0 31.5 63 125 250 500 1000 2000 4000 8000 Max Allowable Fan SWL 98 97 94 89 87 81 75 69 98 7\N/tern-ban Solution Group, LLC 14230 Elati St. Suite 200, Denver, CO I Phone (720) 749-2916 19 URBAN SOLUTION GROUP Appendix 3 — Sound Fundamentals Sound is a series of vibrations transmitted through the air, or other medium, and can be heard when they are processed by the human ear. There are two important properties that describe sound; frequency and amplitude. Frequency is determined by the rate of movement and is measured in cycles per second, which is known as Hertz (Hz). A healthy human ear can hear 20 Hz — 20,000 Hz (Figure A). The sensation associated with frequency is commonly referred to as the pitch of a sound. High frequencies produce a higher pitch and vice versa. The amplitude of a sound is determined by the maximum displacement of air molecules produced by the vibrations. These displacements lead to pressure fluctuations in air, which are expressed in decibels (dB). Decibels are a logarithmic ratio of sound pressure over the standard threshold of hearing. The more energy a sound has, the larger the pressure fluctuations, resulting in a louder sound. Figure A: Auditory Field Displaying Thresholds for a Human Ear at Different Frequencies [Bruel and Kjaer] Limit of Damage Risk Frequency weightings are applied to measurements to provide a better match between measured results and human perception. Each weighting, in relation to their frequency components, allows for a consistent measurement of the different type of noise sources. A - weighted decibel sound pressure levels (dBA) are measurements recorded from a sound level meter measuring sounds similar to the response of the ear (Figure B). 7\N/tern-ban Solution Group, LLC 14230 Elati St. Suite 200, Denver, CO I Phone (720) 749-2916 20 oal'SOLUTION CROUP URBAN Figure B: Common Sound Weightings Up to 20 kHz, Z -Weighting Means No Weighting [Bruel and Kjaer] 100 200 500 1 k Frequency [Hz] Each measurement has an exponential time factor. Slow time weighting is the most common for environmental noise measurements and will be used for these measurements. For recording over long periods of time, the sound level meter records each weighted decibel reading with an equivalent, or average, continuous sound level reading (Leq). Leq represents the same energy as the actual time varying sound signal (Figure C). LAeq refers to the equivalent continuous sound level for an A -weighted measurement. Figure C: Sound Level Recording Displaying Leq, a Steady -State Sound Level, Over a Noise Measurement [Bruel and Kjaer] Environmental noise is a combination of various noise sources. These sources may include; vehicle traffic, aircraft flyovers, wind, weather disturbances, commercial or industrial activities, and other short-term events. These sources create "background noise". Background noise varies throughout the day, generally following the cycle of human activity. Figure D below presents typical A - weighted (dBA) sound levels for common sources of sound. w � Urban Solution Group, LLC I 4230 Elati St. Suite 200, Denver, CO I Phone (720) 749-2916 21 URBAN SOLUTION GROUP Figure D: Common A -weighted Sound Levels [City of Albuquerque] 1 P 0eo •i 1 lti':,-RN i ar ! F —S! 90 B Normal Converse -Atkin '� r` ■ a��{ f�ae �� 55-65 de Pii a Quiet Ubrafy 40 dB- 7\N/tern-ban Solution Group, LLC 14230 Elati St. Suite 200, Denver, CO I Phone (720) 749-2916 22 URBAN SOLUTION GROUP Appendix 4 — Glossary Ambient Noise All noises that exist in an area and are not related to facility. Ambient noise includes sound from other industrial noise not subject to this directive, transportation sources, animals and nature. Average Sound Level See Energy Equivalent Sound Level. A -weighted sound level The sound level as measured on a sound level meter using a setting that emphasizes the middle frequency components similar to the frequency response of the human ear. Calibration A procedure used for the adjustment of a sound level meter using a reference source of a known sound pressure level and frequency. Calibration must take place before and after the sound level measurements. Day Night Sound Level (Ldn) Is the average noise level over a 24 -hour period. The noise between the hours of 22:00 and 07:00 is artificially increased by 10 dB. The nighttime noise is weighted to consider the decrease in community background noise. Daytime Average Sound Level The time -averaged A -weighted sound level measured between the daytime hours, usually defined as 7:00 am to 7:00 pm. Decibel (dB) A unit of measure of sound pressure that compresses a large range of numbers into a more meaningful scale. The basic unit of measurement for sound levels. dBA The decibel (dB) sound pressure level filtered through the A filtering network to approximate human hearing response. See dB and A -weighted Sound Level. Energy Equivalent Sound Level (Leq) The Leq is a single -number average, sound level that represents cumulative acoustical energy as measured over a specified time interval. Facility Any operation used in exploration, processing, development and transportation of energy resources. 7\N/tern-ban Solution Group, LLC 14230 Elati St. Suite 200, Denver, CO I Phone (720) 749-2916 2.3 URBAN SOLUTION GROUP Frequency The number of oscillations per second for a sound wave. Impulse Noise Unwanted, instantaneous sharp sounds that create sudden impulses of pressure similar to gunfire and explosions. Noise Reduction The difference in sound pressure level between two points Nighttime Average Sound Level (Lnight) The time -averaged A -weighted sound level measured between the nighttime hours, usually defined as 7:00 pm to 7:00 am. Ldn See Day night sound level. Leq See Energy Equivalent Sound Level. Noise Generally understood as unwanted sound. Noise Impact Assessment (NIA) Identifies the expected sound level emanating from operations and receptor points are placed in locations related to compliance. It also identifies what the permissible sound level is and how it was calculated. Noise Reduction Coefficient (NRC) A single number rating of the sound absorption properties for a material. An NRC value of zero indicates the material is purely reflective. An NRC value of one indicates perfect absorption. Octave Band An octave band is a frequency band that spans one octave. A band is said to be an octave in width when the upper band frequency is twice the lower band frequency. Octave bands are commonly used in engineering acoustics. The nine common octave bands used for the study of industrial noise are identified by their center frequencies as 31.5Hz, 63Hz, 125Hz, 250 Hz, 500 Hz, 1000 Hz, 2000 Hz, 4000 Hz, and 8000 Hz. Point Source A source that radiates sound from a single point. Generally used to model equipment when looking at the sound impact over a large area. 7\N/tern-ban Solution Group, LLC 14230 Elati St. Suite 200, Denver, CO I Phone (720) 749-2916 24 URBAN SOLUTION GROUP Receiver A person or piece of equipment that is affected by noise. Sound A series of vibrations transmitted through the air, or other medium, and can be heard when they are processed by the human ear. Sound Level Meter (SLM) An instrument that contains a microphone and filter used to measure sound levels, using standard frequency -weightings and exponentially weighted time averaging. Sound Power Level A physical measurement of the amount of power a sound source radiates into the surrounding air. It is the rate at which sound energy is emitted, or received, per unit time. Sound Pressure Level (SPL) The sound level received at a given location. The decibel equivalent of the rate of sound pressure waves at a measured location, usually with a microphone. Sound Transmission Class (STC) An integer rating that measures how well a barrier or building partition attenuates sound. Indicates how well a barrier is at stopping sound from transmitting through it. 1/3 Octave Band The 1/3 octave band analysis provides a finer breakdown of sound energy distribution (compared to full octave band) as a function of frequency. 7\1\k-elirban Solution Group, LLC 14230 Elati St. Suite 200, Denver, CO I Phone (720) 749-2916 25 Jessica Reid From: Sent: To: Cc: Subject: Lauren Light Friday, May 17, 2024 8:40 AM Ryan Fernandez; Andrew Sommer Chris Gathman; Melissa King RE: Commercial vs Light Industrial Noise Statute Clarification? External Mail: Email is from outside of Liberty, always be cautious of links! I agree with 65 dBA/24 Hours a day and I will bring it up at the BCC hearing and state that EH supports this change. It is up to the BCC if they accept this suggestion. Lauren Light, M.B.S. Program Manager/Environmental Planner, Environmental Health Services Weld County Department of Public Health & Environment 1555 N. 17th Ave. Greeley, CO 80631 (light@weld.gov 970-400-2211 (office) ��Tait PHAB Ltiam-- remiear 1'4,4os + Confidentiality Notice: This electronic transmission and any attached documents or other writings are intended only for the person or entity to which it is addressed and may contain information that is privileged, confidential or otherwise protected from disclosure. If you have received this communication in error, please immediately notify sender by return e-mail and destroy the communication. Any disclosure, copying, distribution or the taking of any action concerning the contents of this communication or any attachments by anyone other than the named recipient is strictly prohibited. From: Ryan Fernandez <rfernandez@weld.gov> Sent: Friday, May 17, 2024 7:57 AM To: Andrew.Sommer@libertypowerinnovations.com Cc: Lauren Light <Ilight@weld.gov>; Chris Gathman <cgathman@weld.gov>; Melissa King <mking@weld.gov> Subject: RE: Commercial vs Light Industrial Noise Statute Clarification? Good morning Andrew, Appreciate you taking my phone call yesterday afternoon. I just wanted to recap what we spoke about over the phone regarding your email below: 1. Final staff comments (attached) state: 30. The facility shall adhere to the maximum permissible noise levels allowed in the Commercial Zone as delineated in 25-12-103 C.R.S. The facility shall comply with the accepted Acoustics Analysis. (Department of Public Health and Environment) These two sentences don't seem to agree, since the acoustic analysis we submitted (attached) outlines our commitment to adhere to the Light Industrial Zone 1 Like we discussed, our intent with the commercial zone noise level was based on the original provided noise study. Although you guys were asking for Light Industrial, based on some of the graphics/baseline ambient noise study/and provided noise numbers we felt the Commercial Noise Limit would be obtainable through additional mitigation. However, I do agree with you, the wording "the facility shall comply with the accepted acoustics analysis" doesn't make perfect sense in this case since you guys were requesting Light Industrial and not commercial. We will wait until you guys provide the completed full updated noise study being conducted by Urban Solution and adjust this development standard. 2. Location Daytime Averages (Leq) Averages ighttim (Leq) Overall Averages (Leq) dBA dBA � dBA Monitoring Point 1 52.6 50.8 51.7 Monitoring Point 2 60.8 56.5 58.9 Monitoring Point 3 57.7 54.6 56.2 Monitoring Point 4 52.3 52.0 52.1 Monitoring Point 5 53.8 53.4 53.6 1 Monitoring Point 1 a, Monitoring Point 3 After reviewing the updated Baseline Ambient Study that you provided, I agree that it is impossible to fully comply with the Commercial Noise Limit due to the elevated noise levels at monitoring point 2. This exceeds daytime and nighttime commercial noise limits (60/55 dBA) without the Liberty Power facility even being constructed yet. With that being said, we don't want to jump up to Light Industrial if we do not have to. It's a big increase in our opinion to allow 70 dBA during the day, with the Banowetz property to the West, and the DCP plant that has a noise limit of 60 dBA/24 Hours a day to the East. Over the phone I proposed a solution or possibility of a 65 dBA noise limit/24 hours a day for this facility. Looking at both Scenario A and Scenario B for possible mitigation, this facility should not be adding very much additional noise at the Receptor C (Banowetz property), especially with Scenario B. In summary: Commercial Noise Limit: Liberty Power would not be able to fully comply with these noise limits based on the updated ambient noise study provided in all directions around the facility. 2 Light Industrial: Weld County EH feels like this noise limit allows the possibility of too much noise and could affect the Banowetz property and not be consistent with the DCP Gas Plant noise limits listed in their USR. 65 dBA/24 Hours a day: Weld County EH feels this would be the best option for all this location. Based on the proposed mitigation from Liberty Power, it would appear the facility would not be creating noise, louder than what is provided on the ambient noise study, which would result in minimal increases to the existing noise all the receptors listed in the Noise Impact Assessment that was provided. Liberty Power would be able to be compliant at all monitoring locations around the entire facility. Finally, this noise limit would be more in line with what the DCP gas plant as to adhere to for noise limits. Talking to Andrew on the phone yesterday, he said that they would be open to this solution. So, Chris and Lauren, I am not sure exactly how to go about this or what stage this case is in? Is it possible for this solution to avoid having to allow a higher noise limit (Light Industrial) than what is needed and at what point can we make a language change to the development standard in the final staff report? Thank you, Ryan Fernandez Environmental Health Specialist Environmental Health Services Department of Public Health & Environment 1555 N. 17th Ave. Greeley, CO 80631 970-400-2227 (Office) 970-373-8335 (Cell) rfernandez@weld.gov atit OWNVo PHA B -_s_•rji AMMO Confidentiality Notice: This electronic transmission and any attached documents or other writings are intended only for the person or entity to which it is addressed and may contain information that is privileged, confidential or otherwise protected from disclosure. If you have received this communication in error, please immediately notify sender by return e-mail and destroy the communication. Any disclosure, copying, distribution or the taking of any action concerning the contents of this communication or any attachments by anyone other than the named recipient is strictly prohibited. From: Lauren Light <Ilight@weld.gov> Sent: Thursday, May 16, 2024 4:09 PM To: Ryan Fernandez <rfernandez@weld.gov> Subject: FW: Commercial vs Light Industrial Noise Statute Clarification? Lauren Light, M.B.S. Program Manager/Environmental Planner, Environmental Health Services Weld County Department of Public Health & Environment 1555 N. 17th Ave. Greeley, CO 80631 (light@weld.gov 970-400-2211 (office) 3 WAIFS At* • ILfrier prtwucka Confidentiality Notice: This electronic transmission and any attached documents or other writings are intended only for the person or entity to which it is addressed and may contain information that is privileged, confidential or otherwise protected from disclosure. If you have received this communication in error, please immediately notify sender by return e-mail and destroy the communication. Any disclosure, copying, distribution or the taking of any action concerning the contents of this communication or any attachments by anyone other than the named recipient is strictly prohibited. From: Melissa King <mking@weld.gov> Sent: Thursday, May 16, 2024 4:02 PM To: Lauren Light <Ilight@weld.gov> Cc: Chris Gathman <cgathman@weld.gov> Subject: FW: Commercial vs Light Industrial Noise Statute Clarification? Didn't see where the noise expert was copied on this email Melissa J King, PE, CFM Development Review Engineer Weld County Planning Services 1402 N 17th Avenue Greeley, CO 80632 970-400-3762 From: Andrew Sommer <Andrew.Sommer@libertypowerinnovations.com> Sent: Thursday, May 16, 2024 4:00 PM To: Chris Gathman <cgathman@weld.gov> Cc: Melissa King <mking@weld.gov> Subject: Commercial vs Light Industrial Noise Statute Clarification? Caution: This email originated from outside of Weld County Government. Do not click links or open attachments unless you recognize the sender and know the content is safe. Hi Chris, One of the ongoing items that we are working on with the Banowetz's has been noise mitigation, and we have gotten a new additional sound study done to look at design changes (swapping the sound wall for a building upgrade that will be a little more complex, but better addresses the Banowetz concerns) that would mitigate sound in the direction of the Banowetz property. Through the course of discussion with that sound study, we caught a potential discrepancy in the Final Staff Comments, and I wanted to get some clarification from you. Final staff comments (attached) state: 30. The facility shall adhere to the maximum permissible noise levels allowed in the Commercial Zone as delineated in 25- 12-103 C.R.S. The facility shall comply with the accepted Acoustics Analysis. (Department of Public Health and Environment) These two sentences don't seem to agree, since the acoustic analysis we submitted (attached) outlines our commitment to adhere to the Light Industrial Zone: 4 2.1 Weld County Noise Guidelines Weld County, Colorado Environmental Health Department was consulted to determine the exact ordinance that the Liberty site would fall under. From the Weld County website and via phone calls to the Weld County Environmental Health Department, it was determined and conferred that the Weld County defers to the Colorado noise statute under C.R.S. Title 25 health 25-12-101 and 25-12-103, and that this site would be considered a 'Light Industrial' zone. See appendix 1 for C. R. S. Title 25 health 25-12-101 and 25-12-103. We just performed a new ambient monitoring session, and got the following data (detailed study attached). As you can see, noise at monitoring point 2 (near the road) already exceeds CRS Commercial zone limits of 60 daytime dBA and 55 nighttime dBA. Locatio: Daytime Averages {Leq} Nighttime Averages (Leq) Overal Averages (Leq) dBA 11 dBA I dBA Monitoring Point 1 52.6 50.8 51.7 Monitoring Point 2 60.8 56.5 58.9 Monitoring Point 3 57.7 54.6 56.2 Monitoring Point 4 52.3 52.0 52.1 Monitoring Point 5 53.8 53.4 53.6 Monitoring Points Monitoring Point 4 Monitoring Point 3 Proposes Boulter Farms Location F.rt. "-- Monitoring Point 1 Since there is a 10 dBA difference in requirements between the two zone requirements, and ambient noise in the area already exceeds commercial limits, I am requesting that requirements are confirmed to meet light industrial minimums. Happy to hop on a phone call to discuss further if that would be helpful. Thanks! Liberty Power Innovations Andrew Sommer Manager, Strategic Planning & 5 Project Execution C: 857-753-0123 Andrew.Sommer@libertypowerinnovations.com Jessica Reid From: Sent: To: Cc: Subject: Attachments: Chris Gathman Tuesday, June 4, 2024 4:33 PM Jessica Reid Esther Gesick; Jan Warwick; Chloe White FW: LPI Traffic study - USR23-0042 DRAFT Combined Liberty Traffic Report 240604.pdf From: Andrew Sommer <Andrew.Sommer@libertypowerinnovations.com> Sent: Tuesday, June 4, 2024 4:05 PM To: Chris Gathman <cgathman@weld.gov>; Melissa King <mking@weld.gov> Subject: LPI Traffic study Caution: This email originated from outside of Weld County Government. Do not click links or open attachments unless you recognize the sender and know the content is safe. Hi Chris and Melissa, Sorry for the delay, the report took a little longer than I had expected. See attached report. Lamp Rynearson said if there are any questions or clarifications you all would request, they can get those changed, and then we'll change DRAFT to FINAL status a`s Liberty Power innovations Andrew Sommer Manager, Strategic Planning& Project Execution C: 857-753-0123 Andrew.Sommer@liberty_powerinnovatious.com 1 LAMP RYNEARSON 4715 Innovation Dr., Ste. 100 Fort Collins, CO 80525 [Pj 970.226.0342 [F] 970.226.0879 LampRyncarson.com LIBERTY POWER INNOVATIONS COMPRESSED NATURAL GAS FACILITY COUNTY ROAD 50 WELD COUNTY, COLORADO Project No. 0224020.01-119 Date: JUNE 4, 2024 Lamp Rynearson P 12 DRAFT TRAFFIC IMPACT ANALYSIS LIBERTY POWER INNOVATIONS COMPRESSED NATURAL GAS FACILITY COUNTY ROAD 50 WELD COUNTY, COLORADO JUNE 2024 Prepared for: LIBERTY POWER INNOVATIONS, LLC & WELD COUNTY, COLORADO Prepared by: Matthew L. Kruse, P.E., PTOE PE -41484 ENGINEER / SURVEYOR Lamp Rynearson 4715 Innovation Drive, Suite 100 Fort Collins, CO 80525 (970) 226-0342 PROPERTY OWNER Michael Boulter Farms, LLC 22019 County Road 54 Greeley, CO 80202 ii APPLICANT / OPERATOR Liberty Power Innovations, LLC 950 17th Street, Suite 2400 Denver, CO 80202 TABLE OF CONTENTS LIST OF FIGURES iii LIST OF TABLES iii INTRODUCTION 1 ROADWAY NETWORK CHARACTERISTICS 5 EXISTING (BACKGROUND) TRAFFIC VOLUMES 8 SITE TRIP ANALYSIS 12 TRIP DISTRIBUTION 13 TRAFFIC ANALYSIS 18 CONCLUSIONS AND RECOMMENDATIONS 23 APPENDIX 24 LIST OF FIGURES 1. Site Location 2. Site Plan 3. Haul Route 4. Existing Geometry 5. Daily Traffic Volumes 6. 2024 AM Peak Hour Background Volumes 7. 2024 PM Peak Hour Background Volumes 8. AM Peak Hour Trip Distribution Volumes 9. PM Peak Hour Trip Distribution Volumes 10. AM Peak Hour Build -out Volumes 11. PM Peak Hour Build -out Volumes 12. 2024 Background Peak Hour Level of Service 13. 2024 Build -out Peak Hour Level of Service LIST OF TABLES 1. Estimated Traffic (Daily and Peak Hour) 2. Intersection LOS Criteria INTRODUCTION 1.1 Study Background, Purpose and Goals The proposed site is planned to be a 10 -acre Compressed Natural Gas (CNG) facility in Weld County, CO (Southwest Quarter Section 31, Township 5 North, Range 64 West of the sixth principal meridian). The proposed facility will consist of compressors, truck fill dispensers and load out skids along with other miscellaneous equipment to help support site operations. This report summarizes the findings and recommendations of the traffic analysis completed on the adjacent roadways near the proposed site. The property is located approximately 1/2 mile east of County Road 49. The location of this proposed development is shown in Figure 1. The proposed site plan is included in Figure 2. The purpose of this study was to assess the capacity of the existing roadway system to handle the anticipated traffic associated with the proposed land use for the site. The report was completed following previously utilized guidelines for previous traffic impact studies for similar sites in Weld County. Liberty Power Innovations Compressed Natural Gas Facility Weld County, CO Draft Traffic Study LAMP 1 RYNEARSON N N NO SCALE N: 1400'-0" 20'-0" N: 1300'-0" N: 120O" -0" N: 1100'-0" PROPERTY BOUNDRY N: 1000'-0" PROPOSED FENCE -\\ PROPERTY BOUNDRY 0 I O cy Kf/KF:1:c N — � o a c X X• X X X X \TRLERI 150'-0' I--PRKNO7 a , 0 1 O o- _ e jI- .1 ____ . 0 X e. dc)! [ n n i 0 O ,al ;al a Q ��Q X X X X X v. a Of TIC • •' • • o I v o -} —TRALER ARhING ` f PROPERTY :=a„ ^d[FY W ) 0 Q 0 0 Cou 0 f my Road 50 O SO W 0 pI O 0J W O O La C 0 Q W LAMP RYNEARSON 1 _ FIGURE 2 SITE PLAN 4 3 1.2 Data Gathering The following bullet chart summarizes the data and the source of the data used to complete this study: • Existing geometrics of the roadways and intersections on the proposed truck route associated with the proposed site • Existing ADT provided by Weld County, Colorado • Estimated trips generated from the proposed site provided by the site operator 1.3 Overview of Study Approach To achieve the main goal of the study, the following tasks were accomplished: • Research of the current lane configuration, signal operation and geometry; • Determine site generated traffic, distribution and assignment for trips associated with the site; • Determine daily and total traffic volumes (site and background) for the peak hours • Determine existing traffic volume intersection capacity to handle background traffic using Synchro Version 11 and SimTraffic Software and based on the highest trip generation phase; • Determine build -out traffic volume intersection capacity to handle build -out traffic using Synchro Version 11 and SimTraffic; • Development of recommendations for roadway and traffic control improvements. Liberty Power Innovations Compressed Natural Gas Facility Weld County, CO Draft Traffic Study LAMP 4 RYNEARSON N CHAPTER 2: ROADWAY NETWORK CHARACTERISTICS 2.1 Proposed Truck Haul Route The proposed study area is shown on Figure 1. Truck traffic associated with the proposed site is anticipated to access the site from County Road 49. This was due to County Road 49 being a major arterial near the site. It is assumed that 75 percent of traffic would be coming from the south with the remaining 25 percent of traffic coming from the north. This is also the case for traffic leaving the site. The proposed haul route is included in Figure 3. 2.2 Existing Roadway Configuration County Road 50 is a rural two-lane paved road near the site. It runs east/west through Weld County from County Road 47 to County Road 67. At the intersection of County Road 49 and County Road 50, there is a westbound right turn lane provided along with a northbound right turn lane. There are also southbound and northbound left turn lanes provided along Highway 49. The posted speed limit in the vicinity of the site is 65 miles per hour. County Road 49 is a major arterial that runs north/south near the site and provides access to Interstate 76 to the south or Highway 34 to the north of the proposed site. This road is a 5 -lane paved road in the vicinity of the site. At the intersection of County Road 49 and County Road 50, there are two northbound and southbound through lanes. There is also a northbound right and left turn lane along with a southbound left turn lane at this intersection. On the east leg of the intersection, there is a through/left turning lane and a right turn lane. On the west leg of the intersection, there is one lane for the left/through/right movement. The posted speed limit is 65 miles per hour. The existing geometry is shown in Figure 4. Liberty Power Innovations Compressed Natural Gas Facility Weld County, CO Draft Traffic Study LAMP 5 RYNEARSON N amir 1 N NO SCALE in N -- CO L 275' ir b to U) I-- Lf) U) County Road 49 Proposed Development Site Entrance 0 Unsignalized Intersection y Signalized Intersection - - - - Future Intersection Leg LEGEND 250' Storage Length Through Traffic Movement r Turning Traffic Movement (Right or Left Movement) LAMP RYNEARSON County Road 50 FIGURE 4 EXISTING GEOMETRY 5/23/24 1:55 PM CHAPTER 3: EXISTING (BACKGROUND) TRAFFIC VOLUMES 3.1 Year 2024 Background Traffic Volumes Base traffic volumes along County Road 50 from August 26, 2022 were provided from the Weld County Land Use Application Summary Sheet and it was stated by Weld County that these volumes could be used for this study. This volume was stated to be 1,176 total daily trips with 27 percent (318) of these trips being truck trips. Standard engineering practices state that if the peak hour is unknown, that it can be assumed that the peak hour would be 10 percent of the daily traffic volume. This would provide a peak hour traffic volume of 118 round trips. For this study, it was assumed that 50 percent of the traffic would be travelling west at the Site Entrance 1 and 50 percent would be travelling east. This split shows approximately 59 trips travelling east from County Road 49 with the remaining 59 trips travelling west to County Road 49. The background daily traffic volumes are included in Figure 5. The 2024 background traffic for the AM peak hour is included in Figure 6 and the PM peak hour volumes in Figure 7. Liberty Power Innovations Compressed Natural Gas Facility Weld County, CO Draft Traffic Study LAMP 8 RYNEARSON N c 1 N NO SCALE N N alie 1 Z a _ County Road 49 L22 i r 52 Proposed Development IN: OUT: 74 N - a '» dr N LO Site Entrance 74 L 0 Unsignalized Intersection y Signalized Intersection - - - - Future Intersection Leg LEGEND 155 Traffic Volume Through Traffic Movement r Turning Traffic Movement (Right or Left Movement) LAMP RYNEARSON County Road 50 FIGURE 5 DAILY TRAFFIC VOLUMES 5/23/24 1:55 PM c 1 N NO SCALE Proposed Development L a '.► 1 59 a _ Site Entrance 59 0 Unsignalized Intersection y Signalized Intersection - - - - Future Intersection Leg LEGEND 155 Traffic Volume Through Traffic Movement r Turning Traffic Movement (Right or Left Movement) LAMP RYNEARSON County Road 50 FIGURE 6 2024 AM PEAK HOUR BACKGROUND VOLUMES 5/23/24 1:55 PM 10 c 1 N NO SCALE Proposed Development L a '.► 1 59 a _ Site Entrance 59 0 Unsignalized Intersection y Signalized Intersection - - - - Future Intersection Leg LEGEND 155 Traffic Volume Through Traffic Movement r Turning Traffic Movement (Right or Left Movement) LAMP RYNEARSON County Road 50 FIGURE 7 2024 PM PEAK HOUR BACKGROUND VOLUMES 5/23/24 1:55 PM 11 CHAPTER 4: SITE TRIP ANALYSIS 4.1 Existing Access Locations The access to the site is an existing access, located off of County Road 50 approximately 1/2 mile west of the County Road 49 intersection. The proposed site plan is shown in Figure 2. 4.2 Site Generated Trips Lamp Rynearson worked with Liberty Power Innovations to estimate the number of trips that the site will generate. As shown in Table 1, it was determined that there would be 74 truck round trips generated on a daily basis. In the AM peak hour, there would be approximately 7 entering trips and 3 exiting trips. This would be reversed in the PM peak hour with 3 entering trips and 7 exiting trips. Table 1 — Estimated Truck Traffic (Daily and Peak Hour) Daily AM Peak Hour PM Peak Hour In Out In Out In Out 74 74 7 3 3 7 Liberty Power Innovations Compressed Natural Gas Facility Weld County, CO Draft Traffic Study LAMP 12 RYNEARSON N 4.3 Trip Distribution and Assignment Trip distribution is the process of determining a pattern of distribution of existing (background) traffic within the existing system. Traffic assignment is the process of allocating the site -generated trips to the adjacent roadway system. The orientation of site -generated traffic is a function of trip purposes, surrounding land uses, and the configuration and accessibility of the street network. For the purpose of this site, an established truck route was developed for the traffic associated with the site. As shown in Figure 3, entering traffic, vehicles coming to the site, would utilize County Road 49 with 75 percent of the traffic coming from the south and 25 percent coming from the north. Traffic would then turn eastbound onto County Road 50 to reach the existing Site Entrance 1 intersection. Exiting vehicles would use the same existing access drive to make a right turn onto County Road 50 with 75 percent turning south onto County Road 49 and the remaining 25 percent turning north. The AM trip distribution is included in Figure 8 and for the PM peak hour in Figure 9. The estimated site generated trips are then added to the corresponding background trips to establish build -out volumes for both the AM and PM peak hours. The build -out volumes for the AM peak hour are included in Figure 10 and for the PM peak hour in Figure 11. Liberty Power Innovations Compressed Natural Gas Facility Weld County, CO Draft Traffic Study LAMP 13 RYNEARSON N c 1 N NO SCALE (N alie 1 Li 2 Proposed Development IN: OUT: 3 Cr) a '» dr L7 County Road 49 7� Site Entrance 7 L 0 Unsignalized Intersection y Signalized Intersection - - - - Future Intersection Leg LEGEND 155 Traffic Volume Through Traffic Movement r Turning Traffic Movement (Right or Left Movement) LAMP RYNEARSON County Road 50 FIGURE 8 AM PEAK HOUR TRIP DISTRIBUTION VOLUMES 5/23/24 1:55 PM 14 1 N NO SCALE r alie County Road 49 L2 5 Proposed Development IN: OUT: 7 3 dr Site Entrance 3 L 0 Unsignalized Intersection Signalized Intersection - - - - Future Intersection Leg LEGEND 155 Traffic Volume Through Traffic Movement r Turning Traffic Movement (Right or Left Movement) LAMP RYNEARSON County Road 50 FIGURE 9 PM PEAK HOUR TRIP DISTRIBUTION VOLUMES 1 5/23/24 1:55 PM 15 c 1 N NO SCALE Proposed Development Cr) 0 a 7 J 59 a _ Site Entrance L0 159 0 Unsignalized Intersection y Signalized Intersection - - - - Future Intersection Leg LEGEND 155 Traffic Volume Through Traffic Movement r Turning Traffic Movement (Right or Left Movement) LAMP RYNEARSON County Road 50 FIGURE 10 2024 AM PEAK HOUR BUILD -OUT VOLUMES 5/23/24 1:55 PM 16 c 1 N NO SCALE Proposed Development N- 0 a '.► 3J 59 a _ Site Entrance L0 159 0 Unsignalized Intersection y Signalized Intersection - - - - Future Intersection Leg LEGEND 155 Traffic Volume Through Traffic Movement r Turning Traffic Movement (Right or Left Movement) LAMP RYNEARSON County Road 50 FIGURE 11 2024 PM PEAK HOUR BUILD -OUT VOLUMES 5/23/24 1:55 PM 17 CHAPTER 5: TRAFFIC ANALYSIS 5.1 Background Traffic Intersection Performance Analysis An analysis of all the signalized intersections capacity performance was performed using Synchro 11.0. Synchro is a macroscopic traffic software program that replicates the signalized intersection capacity analysis. Macroscopic level models represent traffic in terms of aggregate measures for each movement at the intersections. Equations are used to determine measures of effectiveness such as delay and queue length. Effect of queues was observed with SimTraffic simulation. While observations of traffic volumes provide an understanding of the general nature of traffic in the area, they are insufficient to indicate either the ability of the street network to carry additional traffic or the quality of service provided by the street facilities. For this reason, the concept of level of service (LOS) has been developed to correlate numerical traffic -volume data to subjective descriptions of traffic performance at intersections. Each lane of traffic has delay associated with it and therefore a correlating LOS. The overall LOS of a signalized intersection is made up of the weighted average delay for each lane of traffic for all of the approaches. LOS is a measure of effectiveness for intersection operating conditions and is based on delay experience by vehicles passing through the intersection. LOS ranges from "A" to "F", with LOS "A" representing little or no delay, and LOS "F" representing extreme delay. LOS "C" or better is considered desirable, LOS "D" being acceptable in some urban situations. The qualitative definition of each category can be found in the appendix. The following Table 2 shows the intersection LOS Criteria for both signalized and unsignalized intersections. (HCM 2010): Liberty Power Innovations Compressed Natural Gas Facility Weld County, CO Draft Traffic Study LAMP 18 RYNEARSON N Table 2 - Intersection LOS Criteria Level of Service Control Signalized Delay Range Control Unsignalized Delay Range A ≤ 10 seconds ≤10 seconds B >10 and ≤ 20 seconds >10 and ≤ 15 seconds C >20 and ≤ 35 seconds >15 and ≤ 25 seconds D >35 and ≤ 55 seconds >25 and ≤ 35 seconds E >55 and ≤ 80 seconds >35 and ≤ 50 seconds >80 seconds >50 seconds F Analysis was completed for the AM and PM peak hour volumes for the County Road 50 and Site Entrance intersection for the background scenarios. The existing geometry that was observed was utilized in the analysis. This same geometry was also used to complete analysis on the traffic estimated for when the site is completed. All of the analyzed intersections were analyzed as stop controlled intersections where the stop signs are located along the minor legs of the intersections. The Synchro outputs are included in the appendix of this study. The results of the background traffic analysis for the existing intersections are summarized below: Background Year 2024 Analysis All intersections are currently unsignalized and are analyzed that way. The individual movements at County Road 50 and Site Entrance are anticipated to operate at a LOS of A in both peak hours. Based on this data, the analyzed intersections are operating at an acceptable level and no improvements were identified as part of the overall analysis. The 2024 Background LOS and the corresponding delays are included in Figure 12. Liberty Power Innovations Compressed Natural Gas Facility Weld County, CO Draft Traffic Study LAMP 19 RYNEARSON N c 1 N NO SCALE Proposed Development E a Q AO(A0)AD. a Site Entrance ASAO (A0) 0 Unsignalized Intersection y Signalized Intersection - - - - Future Intersection Leg LEGEND A 8 (A 8) Level of Service AM(PM) Through Traffic Movement r Turning Traffic Movement (Right or Left Movement) LAMP RYNEARSON County Road 50 FIGURE 12 2024 BACKGROUND PEAK HOUR LEVEL OF SERVICE 5/23/24 1:55 PM 20 5.2 Build -out Intersection Performance Analysis The analysis of the transportation impacts of the site on the surrounding roadway network is based on the distribution of the trips that will be generated from the site. The procedure involved intersection capacity analysis for all intersections directly impacted by the proposed site. The site generated trips were then added to the background volumes to estimate the build -out volumes once the site is constructed. The analysis shows similar anticipated operational performance, in terms of anticipated seconds of delay in comparison to the background scenario. The LOS remained the same for the individual movements between the comparison of the background scenario to the build -out scenario. The southbound movement is anticipated to increase by 9 seconds of delay from the background scenario and the build -out scenario. As was the case in the background scenario, the intersection in the build -out scenario is anticipated to operate at an acceptable level and no improvements were identified as part of the overall analysis. Figure 13 shows the build -out LOS and the corresponding delays. Liberty Power Innovations Compressed Natural Gas Facility Weld County, CO Draft Traffic Study LAMP 21 RYNEARSON N c 1 N NO SCALE Proposed Development op Q A1(A1)mt* a Site Entrance ASAO (A0) 0 Unsignalized Intersection y Signalized Intersection - - - - Future Intersection Leg LEGEND A 8 (A 8) Level of Service AM(PM) Through Traffic Movement r Turning Traffic Movement (Right or Left Movement) LAMP RYNEARSON County Road 50 FIGURE 13 2024 BUILD -OUT PEAK HOUR LEVEL OF SERVICE 5/23/24 1:55 PM 22 CHAPTER 6: CONCLUSIONS AND RECOMMENDATIONS Following are the main conclusions and findings of the traffic impact analysis: • The ADT was provided by Weld County and was stated to be 1,716. This count took place on August 26, 2022 and meets the County's requirement for this TIS. • Using the ADT counts provided by Weld County, a 50/50 split was assumed along County Road 50 for the existing traffic conditions. • The analysis indicated that the existing roadway geometry and intersection controls are adequate for the existing traffic volumes. • Truck traffic associated with the proposed site is anticipated to access the site from County Road 49. This was due to County Road 49 being a major arterial near the site. At County Road 49, it is assumed that 75 percent of traffic would be coming from the south with the remaining 25 percent of traffic coming from the north. This is also the case for traffic leaving the site. • If the route was changed to involve 50 percent of the trips coming from east of the site and 50 percent coming from west of the site, there would still be no changes to the roadway network. • The analysis completed confirms that the proposed route is a viable option based on the existing geometry and roadway capacity. This was the case for both County Road 50 and County Road 49 along with the two intersections of Site Entrance 1 & County Road 50 and County Road 50 & County Road 49. • The proposed site activities are estimated to generate 74 truck round trips daily. In the AM peak hour, 10 total trips would be site generated with 7 of the trips coming to the site and 3 leaving the site. In the PM peak hour, there is anticipated to be the same 10 trips but the entering and exiting trips are flipped with 3 trips coming to the site and 7 trips leaving the site. • Analysis completed on the build -out scenario show anticipated operational performance similar to that that was observed in the background conditions. • No roadway improvements were shown to be required based on the analysis completed as a result of the traffic anticipated to be generated by the site. Liberty Power Innovations Compressed Natural Gas Facility Weld County, CO Draft Traffic Study LAMP 23 RYNEARSON N APPENDIX Liberty Power Innovations Compressed Natural Gas Facility Weld County, CO Draft Traffic Study LAMP 24 RYNEARSON N DEFINITION OF LEVEL OF SERVICE Signalized Intersection Level of service for signalized intersections is defined in terms of delay. Delay is a measure of driver discomfort, frustration, fuel consumption, and lost travel time. Specifically, level -of -service criteria are stated in terms of the average stopped delay per vehicle for a 15 -minute analysis period. Delay is a complex measure, and is dependent on a number of variables. Level of Service A - Describes operations with very low delay, i.e., less than 10.0 sec per vehicle. Progression is extremely favorable, and no approach phase is fully utilized. Most vehicles do not stop at all and no vehicle waits longer than one red indication. Level of Service B - Describes operations with delay in the range of 10.1 to 20 sec per vehicle. This generally occurs with good progression. More vehicles stop than for LOS A, causing higher levels of average delay. An occasional phase is fully utilized. Level of Service C - Describes operations with delay in the range of 20.1 to 35 sec per vehicle. These higher delays may result from fair progression. The number of vehicles stopping is significant at this level, although many still pass through the intersection without stopping. Occasionally drivers may have to wait through more than one red signal indication. Level of Service D - Describes operations with delay in the range of 35.1 to 55.0 sec per vehicle. At level D, the influence of congestion becomes more noticeable. Longer delays may result from unfavorable progression. Many vehicles stop, and the proportion of vehicles not stopping declines. Delays may be substantial during short peaks within the peak period. Level of Service E - Describes operations with delay in the range of 55.1 to 80.0 sec per vehicle. This is considered to be the limit of acceptable delay. These high delay values generally indicate poor progression. There may be long queues of vehicles waiting upstream of the intersection. Delays may be as much as several cycles. Level of Service F - Describes operations with delay in excess of 80.1 sec per vehicle. This is considered to be unacceptable to most drivers. This condition often occurs with over saturation, i.e., when arrival flow rates exceed the capacity of the intersection. Volumes are not predictable under these conditions. Liberty Power Innovations Compressed Natural Gas Facility Weld County, CO Draft Traffic Study LAMP 25 RYNEARSON N Unsignalized Intersections Unsignalized intersections base the level of service on the amount of delay experienced by vehicles turning out of or into the minor, stop sign controlled street. There are no agreed upon quantitative measures of levels of service for unsignalized intersections, but some qualitative measures are given below: Level of Service A - Little or no delay to vehicles. A very high level of service usually found only in rural areas or during off-peak hours. Level of Service B - Short delays to vehicles. Still a very good level of service. Level of Service C - Average delays to vehicles. Waiting time becomes noticeable. Freedom to enter major street traffic is slightly restricted. Level of Service D - Long delays to vehicles. Due to heavy volumes on the major street, vehicles on minor streets are restricted in their ability to enter the traffic stream. Level of Service E - Very long delays to vehicles. Tolerable for short periods of time. If the level of service present for long period, the queue build-up on minor street becomes noticeable. Level of Service F - Represents jammed conditions. Back-ups from locations down- stream or on the cross street may restrict or prevent movement of vehicles out of the approach under consideration; hence, volumes carried are not predictable. Liberty Power Innovations Compressed Natural Gas Facility Weld County, CO Draft Traffic Study LAMP 26 RYNEARSON N TRAFFIC COUNTS Liberty Power Innovations Compressed Natural Gas Facility Weld County, CO Draft Traffic Study LAMP RYN EARSO N [EXTERNAL EMAIL] Good morning This is the information that we have on record ( Note the AADT is 1105). Code requires traffic counts cannot be greater than two years old for the roadway (App 8Q Ch 8.1.3) — so this is still usable. Hope that helps Melissa Melissa J King, PE, CFM Development Review Engineer Weld County Planning Services 1402 N 17th Avenue Greeley, CO 80632 970-400-3762 Liberty Power Innovations Compressed Natural Gas Facility Weld County, CO Draft Traffic Study LAMP RYNEARSON EARSO N SYNCHRO Liberty Power Innovations Compressed Natural Gas Facility Weld County, CO Draft Traffic Study LAMP RYN EARSO N 2024 AM PEAK HOUR BACKGROUND Liberty Power Innovations Compressed Natural Gas Facility Weld County, CO Draft Traffic Study LAMP RYN EARSO N HCM Unsignalized Intersection Capacity Analysis 1: County Road 50 & Site Entrance 1 05/23/2024 is _. 4— ak% \ii& I Movement EBL EBT WBT WBR SBL SBR Lane Configurations 4 1+ ite Traffic Volume (veh/h) 0 59 59 0 0 0 Future Volume (Veh/h) 0 59 59 0 0 0 Sign Control Free Free Stop Grade 0% 0% 0% Peak Hour Factor 0.92 0.92 0.92 0.92 0.92 0.92 Hourly flow rate (vph) 0 64 64 0 0 0 Pedestrians Lane Width (ft) Walking Speed (ft/s) Percent Blockage Right turn flare (veh) Median type None None Median storage veh) Upstream signal (ft) pX, platoon unblocked vC, conflicting volume 64 128 64 vC1, stage 1 conf vol vC2, stage 2 conf vol vCu, unblocked vol 64 128 64 tC, single (s) 4.1 6.4 6.2 tC, 2 stage (s) tF (s) 2.2 3.5 3.3 p0 queue free 100 100 100 cM capacity (veh/h) 1538 866 1000 Direction, Lane # EB 1 WB 1 SB 1 Volume Total 64 64 0 Volume Left 0 0 0 Volume Right 0 0 0 cSH 1538 1700 1700 Volume to Capacity 0.00 0.04 0.00 Queue Length 95th (ft) 0 0 0 Control Delay (s) 0.0 0.0 0.0 Lane LOS A Approach Delay (s) 0.0 0.0 0.0 Approach LOS A Intersection Summary Average Delay 0.0 Intersection Capacity Utilization 6.7% ICU Level of Service A Analysis Period (min) 15 Liberty 3:42 pm 05/16/2024 2024 AM Background Synchro 11 Report Page 1 2024 PM PEAK HOUR BACKGROUND Liberty Power Innovations Compressed Natural Gas Facility Weld County, CO Draft Traffic Study LAMP RYN EARSO N HCM Unsignalized Intersection Capacity Analysis 1: County Road 50 & Site Entrance 1 05/23/2024 is _. 4— ak% \ii& I Movement EBL EBT WBT WBR SBL SBR Lane Configurations 4 1+ ite Traffic Volume (veh/h) 0 59 59 0 0 0 Future Volume (Veh/h) 0 59 59 0 0 0 Sign Control Free Free Stop Grade 0% 0% 0% Peak Hour Factor 0.92 0.92 0.92 0.92 0.92 0.92 Hourly flow rate (vph) 0 64 64 0 0 0 Pedestrians Lane Width (ft) Walking Speed (ft/s) Percent Blockage Right turn flare (veh) Median type None None Median storage veh) Upstream signal (ft) pX, platoon unblocked vC, conflicting volume 64 128 64 vC1, stage 1 conf vol vC2, stage 2 conf vol vCu, unblocked vol 64 128 64 tC, single (s) 4.1 6.4 6.2 tC, 2 stage (s) tF (s) 2.2 3.5 3.3 p0 queue free 100 100 100 cM capacity (veh/h) 1538 866 1000 Direction, Lane # EB 1 WB 1 SB 1 Volume Total 64 64 0 Volume Left 0 0 0 Volume Right 0 0 0 cSH 1538 1700 1700 Volume to Capacity 0.00 0.04 0.00 Queue Length 95th (ft) 0 0 0 Control Delay (s) 0.0 0.0 0.0 Lane LOS A Approach Delay (s) 0.0 0.0 0.0 Approach LOS A Intersection Summary Average Delay 0.0 Intersection Capacity Utilization 6.7% ICU Level of Service A Analysis Period (min) 15 Liberty 3:42 pm 05/16/2024 2024 PM Background Synchro 11 Report Page 1 2024 AM PEAK HOUR BUILD -OUT Liberty Power Innovations Compressed Natural Gas Facility Weld County, CO Draft Traffic Study LAMP RYN EARSO N HCM Unsignalized Intersection Capacity Analysis 1: County Road 50 & Site Entrance 1 05/23/2024 is _. 4— ak% \ii& I Movement EBL EBT WBT WBR SBL SBR Lane Configurations 4 1+ itel Traffic Volume (veh/h) 7 59 59 0 0 3 Future Volume (Veh/h) 7 59 59 0 0 3 Sign Control Free Free Stop Grade 0% 0% 0% Peak Hour Factor 0.92 0.92 0.92 0.92 0.92 0.92 Hourly flow rate (vph) 8 64 64 0 0 3 Pedestrians Lane Width (ft) Walking Speed (ft/s) Percent Blockage Right turn flare (veh) Median type None None Median storage veh) Upstream signal (ft) pX, platoon unblocked vC, conflicting volume 64 144 64 vC1, stage 1 conf vol vC2, stage 2 conf vol vCu, unblocked vol 64 144 64 tC, single (s) 4.1 6.4 6.2 tC, 2 stage (s) tF (s) 2.2 3.5 3.3 p0 queue free 99 100 100 cM capacity (veh/h) 1538 844 1000 Direction, Lane # EB1 WB1 SB1 Volume Total 72 64 3 Volume Left 8 0 0 Volume Right 0 0 3 cSH 1538 1700 1000 Volume to Capacity 0.01 0.04 0.00 Queue Length 95th (ft) 0 0 0 Control Delay (s) 0.9 0.0 8.6 Lane LOS A A Approach Delay (s) 0.9 0.0 8.6 Approach LOS A Intersection Summary Average Delay 0.6 Intersection Capacity Utilization Analysis Period (min) 19.0% 15 ICU Level of Service A Liberty 3:42 pm 05/16/2024 2024 AM Build -out Synchro 11 Report Page 1 2024 PM PEAK HOUR BUILD -OUT Liberty Power Innovations Compressed Natural Gas Facility Weld County, CO Draft Traffic Study LAMP RYN EARSO N HCM Unsignalized Intersection Capacity Analysis 1: County Road 50 & Site Entrance 1 05/23/2024 is _. 4— ak% \ii& I Movement EBL EBT WBT WBR SBL SBR Lane Configurations 4 1+ ite Traffic Volume (veh/h) 3 59 59 0 0 7 Future Volume (Veh/h) 3 59 59 0 0 7 Sign Control Free Free Stop Grade 0% 0% 0% Peak Hour Factor 0.92 0.92 0.92 0.92 0.92 0.92 Hourly flow rate (vph) 3 64 64 0 0 8 Pedestrians Lane Width (ft) Walking Speed (ft/s) Percent Blockage Right turn flare (veh) Median type None None Median storage veh) Upstream signal (ft) pX, platoon unblocked vC, conflicting volume 64 134 64 vC1, stage 1 conf vol vC2, stage 2 conf vol vCu, unblocked vol 64 134 64 tC, single (s) 4.1 6.4 6.2 tC, 2 stage (s) tF (s) 2.2 3.5 3.3 p0 queue free 100 100 99 cM capacity (veh/h) 1538 858 1000 Direction, Lane # EB 1 WB 1 SB 1 Volume Total 67 64 8 Volume Left 3 0 0 Volume Right 0 0 8 cSH 1538 1700 1000 Volume to Capacity 0.00 0.04 0.01 Queue Length 95th (ft) 0 0 1 Control Delay (s) 0.3 0.0 8.6 Lane LOS A A Approach Delay (s) 0.3 0.0 8.6 Approach LOS A Intersection Summary Average Delay 0.7 Intersection Capacity Utilization 15.5% ICU Level of Service A Analysis Period (min) 15 Liberty 3:42 pm 05/16/2024 2024 PM Build -out Synchro 11 Report Page 1 LAMP RYNEARSON 4715 Innovation Dr., Ste. 100 Fort Collins, CO 80525 [P] 970.226.0342 [F] 970.226.0879 LampRynearson.com LIBERTY POWER INNOVATIONS COMPRESSED NATURAL GAS FACILITY COUNTY ROAD 50 WELD COUNTY, COLORADO Project No. 0224020.01-119 Date: JUNE 10, 2024 Lamp Rynearson P 12 DRAFT TRAFFIC IMPACT ANALYSIS LIBERTY POWER INNOVATIONS COMPRESSED NATURAL GAS FACILITY COUNTY ROAD 50 WELD COUNTY, COLORADO JUNE 2024 Prepared for: LIBERTY POWER INNOVATIONS, LLC & WELD COUNTY, COLORADO Prepared by: Matthew L. Kruse, P.E., PTOE PE -41484 ENGINEER / SURVEYOR Lamp Rynearson 4715 Innovation Drive, Suite 100 Fort Collins, CO 80525 (970) 226-0342 PROPERTY OWNER Michael Boulter Farms, LLC 22019 County Road 54 Greeley, CO 80202 ii APPLICANT / OPERATOR Liberty Power Innovations, LLC 950 17th Street, Suite 2400 Denver, CO 80202 TABLE OF CONTENTS LIST OF FIGURES iii LIST OF TABLES iii INTRODUCTION 1 ROADWAY NETWORK CHARACTERISTICS 5 EXISTING (BACKGROUND) TRAFFIC VOLUMES 8 SITE TRIP ANALYSIS 12 TRIP DISTRIBUTION 13 TRAFFIC ANALYSIS 18 CONCLUSIONS AND RECOMMENDATIONS 23 APPENDIX 25 LIST OF FIGURES 1. Site Location 2. Site Plan 3. Haul Route 4. Existing Geometry 5. Daily Traffic Volumes 6. 2024 AM Peak Hour Background Volumes 7. 2024 PM Peak Hour Background Volumes 8. AM Peak Hour Trip Distribution Volumes 9. PM Peak Hour Trip Distribution Volumes 10. AM Peak Hour Build -out Volumes 11. PM Peak Hour Build -out Volumes 12. 2024 Background Peak Hour Level of Service 13. 2024 Build -out Peak Hour Level of Service LIST OF TABLES 1. Estimated Traffic (Daily and Peak Hour) 2. Intersection LOS Criteria INTRODUCTION 11 Study Background, Purpose and Goals The proposed site is planned to be a 10 -acre Compressed Natural Gas (CNG) facility in Weld County, CO (Southwest Quarter Section 31, Township 5 North, Range 64 West of the sixth principal meridian). The proposed facility will consist of compressors, truck fill dispensers and load out skids along with other miscellaneous equipment to help support site operations. This report summarizes the findings and recommendations of the traffic analysis completed on the adjacent roadways near the proposed site. The property is located approximately 1/2 mile east of County Road 49. The location of this proposed development is shown in Figure 1. The proposed site plan is included in Figure 2. The purpose of this study was to assess the capacity of the existing roadway system to handle the anticipated traffic associated with the proposed land use for the site. The report was completed following previously utilized guidelines for previous traffic impact studies for similar sites in Weld County. Liberty Power Innovations Compressed Natural Gas Facility Weld County, CO Draft Traffic Study LAMP 1 RYNEARSON N N NO SCALE N: 1400'-0" 20'-0" N: 1300'-0" N: 120O" -0" N: 1100'-0" PROPERTY BOUNDRY N: 1000'-0" PROPOSED FENCE -\\ PROPERTY BOUNDRY 0 I O cy Kf/KF:1:c N — � o a c X X• X X X X \TRLERI 150'-0' I--PRKNO7 a , 0 1 O o- _ e jI- .1 ____ . 0 X e. dc)! [ n n i 0 O ,al ;al a Q ��Q X X X X X v. a Of TIC • •' • • o I v o -} —TRALER ARhING ` f PROPERTY :=a„ ^d[FY W ) 0 Q 0 0 Cou 0 f my Road 50 O SO W 0 pI O 0J W O O La C 0 Q W LAMP RYNEARSON 1 _ FIGURE 2 SITE PLAN 4 3 1.2 Data Gathering The following bullet chart summarizes the data and the source of the data used to complete this study: • Existing geometrics of the roadways and intersections on the proposed truck route associated with the proposed site • Existing ADT provided by Weld County, Colorado • Estimated trips generated from the proposed site provided by the site operator 1.3 Overview of Study Approach To achieve the main goal of the study, the following tasks were accomplished: • Research of the current lane configuration, signal operation and geometry; • Determine site generated traffic, distribution and assignment for trips associated with the site; • Determine daily and total traffic volumes (site and background) for the peak hours • Determine existing traffic volume intersection capacity to handle background traffic using Synchro Version 11 and SimTraffic Software and based on the highest trip generation phase; • Determine build -out traffic volume intersection capacity to handle build -out traffic using Synchro Version 11 and SimTraffic; • Development of recommendations for roadway and traffic control improvements. Liberty Power Innovations Compressed Natural Gas Facility Weld County, CO Draft Traffic Study LAMP 4 RYNEARSON N CHAPTER 2: ROADWAY NETWORK CHARACTERISTICS 2.1 Proposed Truck Haul Route The proposed study area is shown on Figure 1. Truck traffic associated with the proposed site is anticipated to access the site from County Road 49. This was due to County Road 49 being a major arterial near the site. It is assumed that 75 percent of traffic would be coming from the south with the remaining 25 percent of traffic coming from the north. This is also the case for traffic leaving the site. The proposed haul route is included in Figure 3. 2.2 Existing Roadway Configuration County Road 50 is a rural two-lane paved road near the site. It runs east/west through Weld County from County Road 47 to County Road 67. At the intersection of County Road 49 and County Road 50, there is a westbound right turn lane provided along with a northbound right turn lane. There are also southbound and northbound left turn lanes provided along Highway 49. The posted speed limit in the vicinity of the site is 65 miles per hour. County Road 49 is a major arterial that runs north/south near the site and provides access to Interstate 76 to the south or Highway 34 to the north of the proposed site. This road is a 5 -lane paved road in the vicinity of the site. At the intersection of County Road 49 and County Road 50, there are two northbound and southbound through lanes. There is also a northbound right and left turn lane along with a southbound left turn lane at this intersection. On the east leg of the intersection, there is a through/left turning lane and a right turn lane. On the west leg of the intersection, there is one lane for the left/through/right movement. The posted speed limit is 65 miles per hour. The existing geometry is shown in Figure 4. Liberty Power Innovations Compressed Natural Gas Facility Weld County, CO Draft Traffic Study LAMP 5 RYNEARSON N amir 1 N NO SCALE in N -- CO L 275' ir b to U) I-- Lf) U) County Road 49 Proposed Development Site Entrance 0 Unsignalized Intersection y Signalized Intersection - - - - Future Intersection Leg LEGEND 250' Storage Length Through Traffic Movement r Turning Traffic Movement (Right or Left Movement) LAMP RYNEARSON County Road 50 FIGURE 4 EXISTING GEOMETRY 5/23/24 1:55 PM CHAPTER 3: EXISTING (BACKGROUND) TRAFFIC VOLUMES 3.1 Year 2024 Background Traffic Volumes Base traffic volumes along County Road 50 from August 26, 2022 were provided from the Weld County Land Use Application Summary Sheet and it was stated by Weld County that these volumes could be used for this study. This volume was stated to be 1,176 total daily trips with 27 percent (318) of these trips being truck trips. Standard engineering practices state that if the peak hour is unknown, that it can be assumed that the peak hour would be 10 percent of the daily traffic volume. This would provide a peak hour traffic volume of 118 round trips. For this study, it was assumed that 50 percent of the traffic would be travelling west at the Site Entrance 1 and 50 percent would be travelling east. This split shows approximately 59 trips travelling east from County Road 49 with the remaining 59 trips travelling west to County Road 49. The background daily traffic volumes are included in Figure 5. The 2024 background traffic for the AM peak hour is included in Figure 6 and the PM peak hour volumes in Figure 7. Liberty Power Innovations Compressed Natural Gas Facility Weld County, CO Draft Traffic Study LAMP 8 RYNEARSON N c 1 N NO SCALE N N alie 1 Z a _ County Road 49 L22 i r 52 Proposed Development IN: OUT: 74 N - a '» dr N LO Site Entrance 74 L 0 Unsignalized Intersection y Signalized Intersection - - - - Future Intersection Leg LEGEND 155 Traffic Volume Through Traffic Movement r Turning Traffic Movement (Right or Left Movement) LAMP RYNEARSON County Road 50 FIGURE 5 DAILY TRAFFIC VOLUMES 5/23/24 1:55 PM c 1 N NO SCALE Proposed Development L a '.► 1 59 a _ Site Entrance 59 0 Unsignalized Intersection y Signalized Intersection - - - - Future Intersection Leg LEGEND 155 Traffic Volume Through Traffic Movement r Turning Traffic Movement (Right or Left Movement) LAMP RYNEARSON County Road 50 FIGURE 6 2024 AM PEAK HOUR BACKGROUND VOLUMES 5/23/24 1:55 PM 10 c 1 N NO SCALE Proposed Development L a '.► 1 59 a _ Site Entrance 59 0 Unsignalized Intersection y Signalized Intersection - - - - Future Intersection Leg LEGEND 155 Traffic Volume Through Traffic Movement r Turning Traffic Movement (Right or Left Movement) LAMP RYNEARSON County Road 50 FIGURE 7 2024 PM PEAK HOUR BACKGROUND VOLUMES 5/23/24 1:55 PM 11 CHAPTER 4: SITE TRIP A NA L YSI S 4.1 Existing Access Locations The access to the site is an existing access, located off of County Road 50 approximately 1/2 mile west of the County Road 49 intersection. The proposed site plan is shown in Figure 2. 4.2 Site Generated Trips Lamp Rynearson worked with Liberty Power Innovations to estimate the number of trips that the site will generate. As shown in Table 1, it was determined that there would be 74 truck round trips generated on a daily basis. In the AM peak hour, there would be approximately 7 entering trips and 3 exiting trips. This would be reversed in the PM peak hour with 3 entering trips and 7 exiting trips. Table 1 - Estimated Truck Traffic (Daily and Peak Hour) Daily AM Peak Hour PM Peak Hour In Out In Out In Out 74 74 7 3 3 7 Liberty Power Innovations Compressed Natural Gas Facility Weld County, CO Draft Traffic Study LAMP 12 RYNEARSON N 4.3 Trip Distribution and Assignment Trip distribution is the process of determining a pattern of distribution of existing (background) traffic within the existing system. Traffic assignment is the process of allocating the site -generated trips to the adjacent roadway system. The orientation of site -generated traffic is a function of trip purposes, surrounding land uses, and the configuration and accessibility of the street network. For the purpose of this site, an established truck route was developed for the traffic associated with the site. As shown in Figure 3, entering traffic, vehicles coming to the site, would utilize County Road 49 with 75 percent of the traffic coming from the south and 25 percent coming from the north. Traffic would then turn eastbound onto County Road 50 to reach the existing Site Entrance 1 intersection. Exiting vehicles would use the same existing access drive to make a right turn onto County Road 50 with 75 percent turning south onto County Road 49 and the remaining 25 percent turning north. The AM trip distribution is included in Figure 8 and for the PM peak hour in Figure 9. The estimated site generated trips are then added to the corresponding background trips to establish build -out volumes for both the AM and PM peak hours. The build -out volumes for the AM peak hour are included in Figure 10 and for the PM peak hour in Figure 11. Liberty Power Innovations Compressed Natural Gas Facility Weld County, CO Draft Traffic Study LAMP 13 RYNEARSON N c 1 N NO SCALE (N alie 1 Li 2 Proposed Development IN: OUT: 3 Cr) a '» dr L7 County Road 49 7� Site Entrance 7 L 0 Unsignalized Intersection y Signalized Intersection - - - - Future Intersection Leg LEGEND 155 Traffic Volume Through Traffic Movement r Turning Traffic Movement (Right or Left Movement) LAMP RYNEARSON County Road 50 FIGURE 8 AM PEAK HOUR TRIP DISTRIBUTION VOLUMES 5/23/24 1:55 PM 14 1 N NO SCALE r alie County Road 49 L2 5 Proposed Development IN: OUT: 7 3 dr Site Entrance 3 L 0 Unsignalized Intersection Signalized Intersection - - - - Future Intersection Leg LEGEND 155 Traffic Volume Through Traffic Movement r Turning Traffic Movement (Right or Left Movement) LAMP RYNEARSON County Road 50 FIGURE 9 PM PEAK HOUR TRIP DISTRIBUTION VOLUMES 1 5/23/24 1:55 PM 15 c 1 N NO SCALE Proposed Development Cr) 0 a 7 J 59 a _ Site Entrance L0 159 0 Unsignalized Intersection y Signalized Intersection - - - - Future Intersection Leg LEGEND 155 Traffic Volume Through Traffic Movement r Turning Traffic Movement (Right or Left Movement) LAMP RYNEARSON County Road 50 FIGURE 10 2024 AM PEAK HOUR BUILD -OUT VOLUMES 5/23/24 1:55 PM 16 c 1 N NO SCALE Proposed Development N- 0 a '.► 3J 59 a _ Site Entrance L0 159 0 Unsignalized Intersection y Signalized Intersection - - - - Future Intersection Leg LEGEND 155 Traffic Volume Through Traffic Movement r Turning Traffic Movement (Right or Left Movement) LAMP RYNEARSON County Road 50 FIGURE 11 2024 PM PEAK HOUR BUILD -OUT VOLUMES 5/23/24 1:55 PM 17 CHAPTER 5: TRAFFIC ANALYSIS 5.1 Background Traffic Intersection Performance Analysis An analysis of all the signalized intersections capacity performance was performed using Synchro 11.0. Synchro is a macroscopic traffic software program that replicates the signalized intersection capacity analysis. Macroscopic level models represent traffic in terms of aggregate measures for each movement at the intersections. Equations are used to determine measures of effectiveness such as delay and queue length. Effect of queues was observed with SimTraffic simulation. While observations of traffic volumes provide an understanding of the general nature of traffic in the area, they are insufficient to indicate either the ability of the street network to carry additional traffic or the quality of service provided by the street facilities. For this reason, the concept of level of service (LOS) has been developed to correlate numerical traffic -volume data to subjective descriptions of traffic performance at intersections. Each lane of traffic has delay associated with it and therefore a correlating LOS. The overall LOS of a signalized intersection is made up of the weighted average delay for each lane of traffic for all of the approaches. LOS is a measure of effectiveness for intersection operating conditions and is based on delay experience by vehicles passing through the intersection. LOS ranges from "A" to "F", with LOS "A" representing little or no delay, and LOS "F" representing extreme delay. LOS "C" or better is considered desirable, LOS "D" being acceptable in some urban situations. The qualitative definition of each category can be found in the appendix. The following Table 2 shows the intersection LOS Criteria for both signalized and unsignalized intersections. (HCM 2010): Liberty Power Innovations Compressed Natural Gas Facility Weld County, CO Draft Traffic Study LAMP 18 RYNEARSON N Table 2 - Intersection LOS Criteria Level of Service Control Signalized Delay Range Control Unsignalized Delay Range A ≤ 10 seconds ≤10 seconds B >10 and ≤ 20 seconds >10 and ≤ 15 seconds C >20 and ≤ 35 seconds >15 and ≤ 25 seconds D >35 and ≤ 55 seconds >25 and ≤ 35 seconds E >55 and ≤ 80 seconds >35 and ≤ 50 seconds >80 seconds >50 seconds F Analysis was completed for the AM and PM peak hour volumes for the County Road 50 and Site Entrance intersection for the background scenarios. The existing geometry that was observed was utilized in the analysis. This same geometry was also used to complete analysis on the traffic estimated for when the site is completed. All of the analyzed intersections were analyzed as stop controlled intersections where the stop signs are located along the minor legs of the intersections. The Synchro outputs are included in the appendix of this study. The results of the background traffic analysis for the existing intersections are summarized below: Background Year 2024 Analysis All intersections are currently unsignalized and are analyzed that way. The individual movements at County Road 50 and Site Entrance are anticipated to operate at a LOS of A in both peak hours. Based on this data, the analyzed intersections are operating at an acceptable level and no improvements were identified as part of the overall analysis. The 2024 Background LOS and the corresponding delays are included in Figure 12. Liberty Power Innovations Compressed Natural Gas Facility Weld County, CO Draft Traffic Study LAMP 19 RYNEARSON N c 1 N NO SCALE Proposed Development E a Q AO(A0)AD. a Site Entrance ASAO (A0) 0 Unsignalized Intersection y Signalized Intersection - - - - Future Intersection Leg LEGEND A 8 (A 8) Level of Service AM(PM) Through Traffic Movement r Turning Traffic Movement (Right or Left Movement) LAMP RYNEARSON County Road 50 FIGURE 12 2024 BACKGROUND PEAK HOUR LEVEL OF SERVICE 5/23/24 1:55 PM 20 5.2 Build -out Intersection Performance Analysis The analysis of the transportation impacts of the site on the surrounding roadway network is based on the distribution of the trips that will be generated from the site. The procedure involved intersection capacity analysis for all intersections directly impacted by the proposed site. The site generated trips were then added to the background volumes to estimate the build -out volumes once the site is constructed. The analysis shows similar anticipated operational performance, in terms of anticipated seconds of delay in comparison to the background scenario. The LOS remained the same for the individual movements between the comparison of the background scenario to the build -out scenario. The southbound movement is anticipated to increase by 9 seconds of delay from the background scenario and the build -out scenario. As was the case in the background scenario, the intersection in the build -out scenario is anticipated to operate at an acceptable level and no improvements were identified as part of the overall analysis. Figure 13 shows the build -out LOS and the corresponding delays. 5.3 2045 Future Analysis Weld County provided the 2045 Transportation Plan and wanted more information on the level of service of the westbound left turning movement at the intersection of County Road 49 and County Road 50. Based on the transportation plan, the east leg of County Road 50 is anticipated to have an ADT of 3,600 in 2045. The west leg of the intersection is anticipated to have an ADT of 220 in 2045. County Road 49 is anticipated to have an ADT of 11,370. To determine the peak hour volumes, it was assumed that these volumes are 10 percent of the ADT, which is a standard engineering practice. These volumes were then split 50/50 directionally to determine the direction of the volumes. Based on this, the individual movements at the intersection are anticipated to operate at a LOS of B or better in the peak hour. The longest queue is anticipated to be 30 feet in this scenario for the westbound left turning movement. Liberty Power Innovations Compressed Natural Gas Facility Weld County, CO Draft Traffic Study LAMP 21 RYNEARSON N c 1 N NO SCALE Proposed Development op Q A1(A1)mt* a Site Entrance ASAO (A0) 0 Unsignalized Intersection y Signalized Intersection - - - - Future Intersection Leg LEGEND A 8 (A 8) Level of Service AM(PM) Through Traffic Movement r Turning Traffic Movement (Right or Left Movement) LAMP RYNEARSON County Road 50 FIGURE 13 2024 BUILD -OUT PEAK HOUR LEVEL OF SERVICE 5/23/24 1:55 PM 22 CHAPTER 6: CONCLUSIONS AND RECOMMENDATIONS Following are the main conclusions and findings of the traffic impact analysis: • The ADT was provided by Weld County and was stated to be 1,716. This count took place on August 26, 2022 and meets the County's requirement for this TIS. • Using the ADT counts provided by Weld County, a 50/50 split was assumed along County Road 50 for the existing traffic conditions. • The analysis indicated that the existing roadway geometry and intersection controls are adequate for the existing traffic volumes. • Truck traffic associated with the proposed site is anticipated to access the site from County Road 49. This was due to County Road 49 being a major arterial near the site. At County Road 49, it is assumed that 75 percent of traffic would be coming from the south with the remaining 25 percent of traffic coming from the north. This is also the case for traffic leaving the site. • If the route was changed to involve 50 percent of the trips coming from east of the site and 50 percent coming from west of the site, there would still be no changes to the roadway network. • The analysis completed confirms that the proposed route is a viable option based on the existing geometry and roadway capacity. This was the case for both County Road 50 and County Road 49 along with the two intersections of Site Entrance 1 & County Road 50 and County Road 50 & County Road 49. • The proposed site activities are estimated to generate 74 truck round trips daily. In the AM peak hour, 10 total trips would be site generated with 7 of the trips coming to the site and 3 leaving the site. In the PM peak hour, there is anticipated to be the same 10 trips but the entering and exiting trips are flipped with 3 trips coming to the site and 7 trips leaving the site. • Analysis completed on the build -out scenario show anticipated operational performance similar to that that was observed in the background conditions. • No roadway improvements were shown to be required based on the analysis completed as a result of the traffic anticipated to be generated by the site. Liberty Power Innovations Compressed Natural Gas Facility Weld County, CO Draft Traffic Study LAMP 23 RYNEARSON N • Future analysis for the year 2045 was completed on the intersection of County Road 49 and County Road 50. Based on this analysis, the intersection is anticipated to operate at a LOS of B or better in the peak hour. No improvements are anticipated to the roadway or intersection, based on this information. Liberty Power Innovations Compressed Natural Gas Facility Weld County, CO Draft Traffic Study LAMP 24 RYNEARSON N APPENDIX Liberty Power Innovations Compressed Natural Gas Facility Weld County, CO Draft Traffic Study LAMP 25 RYNEARSON N DEFINITION OF LEVEL OF SERVICE Signalized Intersection Level of service for signalized intersections is defined in terms of delay. Delay is a measure of driver discomfort, frustration, fuel consumption, and lost travel time. Specifically, level -of -service criteria are stated in terms of the average stopped delay per vehicle for a 15 -minute analysis period. Delay is a complex measure, and is dependent on a number of variables. Level of Service A - Describes operations with very low delay, i.e., less than 10.0 sec per vehicle. Progression is extremely favorable, and no approach phase is fully utilized. Most vehicles do not stop at all and no vehicle waits longer than one red indication. Level of Service B - Describes operations with delay in the range of 10.1 to 20 sec per vehicle. This generally occurs with good progression. More vehicles stop than for LOS A, causing higher levels of average delay. An occasional phase is fully utilized. Level of Service C - Describes operations with delay in the range of 20.1 to 35 sec per vehicle. These higher delays may result from fair progression. The number of vehicles stopping is significant at this level, although many still pass through the intersection without stopping. Occasionally drivers may have to wait through more than one red signal indication. Level of Service D - Describes operations with delay in the range of 35.1 to 55.0 sec per vehicle. At level D, the influence of congestion becomes more noticeable. Longer delays may result from unfavorable progression. Many vehicles stop, and the proportion of vehicles not stopping declines. Delays may be substantial during short peaks within the peak period. Level of Service E - Describes operations with delay in the range of 55.1 to 80.0 sec per vehicle. This is considered to be the limit of acceptable delay. These high delay values generally indicate poor progression. There may be long queues of vehicles waiting upstream of the intersection. Delays may be as much as several cycles. Level of Service F - Describes operations with delay in excess of 80.1 sec per vehicle. This is considered to be unacceptable to most drivers. This condition often occurs with over saturation, i.e., when arrival flow rates exceed the capacity of the intersection. Volumes are not predictable under these conditions. Liberty Power Innovations Compressed Natural Gas Facility Weld County, CO Draft Traffic Study LAMP 26 RYNEARSON N Unsignalized Intersections Unsignalized intersections base the level of service on the amount of delay experienced by vehicles turning out of or into the minor, stop sign controlled street. There are no agreed upon quantitative measures of levels of service for unsignalized intersections, but some qualitative measures are given below: Level of Service A - Little or no delay to vehicles. A very high level of service usually found only in rural areas or during off-peak hours. Level of Service B - Short delays to vehicles. Still a very good level of service. Level of Service C - Average delays to vehicles. Waiting time becomes noticeable. Freedom to enter major street traffic is slightly restricted. Level of Service D - Long delays to vehicles. Due to heavy volumes on the major street, vehicles on minor streets are restricted in their ability to enter the traffic stream. Level of Service E - Very long delays to vehicles. Tolerable for short periods of time. If the level of service present for long period, the queue build-up on minor street becomes noticeable. Level of Service F - Represents jammed conditions. Back-ups from locations down- stream or on the cross street may restrict or prevent movement of vehicles out of the approach under consideration; hence, volumes carried are not predictable. Liberty Power Innovations Compressed Natural Gas Facility Weld County, CO Draft Traffic Study LAMP 27 RYNEARSON N TRAFFIC COUNTS Liberty Power Innovations Compressed Natural Gas Facility Weld County, CO Draft Traffic Study LAMP RYN EARSO N [EXTERNAL EMAIL] 4U --?1T8- awCR SO = �.- Truck %: 27 8/26✓2022 Good morning This is the information that we have on record ( Note the AADT is 1105). Code requires traffic counts cannot be greater than two years old for the roadway (App 8Q Ch 8.1.3) — so this is still usable. Hope that helps Melissa Melissa J King, PE, CFM Development Review Engineer Weld County Planning Services 1402 N 17th Avenue Greeley, CO 80632 970-400-3762 Liberty Power Innovations Compressed Natural Gas Facility Weld County, CO Draft Traffic Study LAMP RYN EARSO N SYNCHRO Liberty Power Innovations Compressed Natural Gas Facility Weld County, CO Draft Traffic Study LAMP RYN EARSO N 2024 AM PEAK HOUR BACKGROUND Liberty Power Innovations Compressed Natural Gas Facility Weld County, CO Draft Traffic Study LAMP RYN EARSO N HCM Unsignalized Intersection Capacity Analysis 1: County Road 50 & Site Entrance 1 05/23/2024 is _. 4— ak% \ii& I Movement EBL EBT WBT WBR SBL SBR Lane Configurations 4 1+ ite Traffic Volume (veh/h) 0 59 59 0 0 0 Future Volume (Veh/h) 0 59 59 0 0 0 Sign Control Free Free Stop Grade 0% 0% 0% Peak Hour Factor 0.92 0.92 0.92 0.92 0.92 0.92 Hourly flow rate (vph) 0 64 64 0 0 0 Pedestrians Lane Width (ft) Walking Speed (ft/s) Percent Blockage Right turn flare (veh) Median type None None Median storage veh) Upstream signal (ft) pX, platoon unblocked vC, conflicting volume 64 128 64 vC1, stage 1 conf vol vC2, stage 2 conf vol vCu, unblocked vol 64 128 64 tC, single (s) 4.1 6.4 6.2 tC, 2 stage (s) tF (s) 2.2 3.5 3.3 p0 queue free 100 100 100 cM capacity (veh/h) 1538 866 1000 Direction, Lane # EB 1 WB 1 SB 1 Volume Total 64 64 0 Volume Left 0 0 0 Volume Right 0 0 0 cSH 1538 1700 1700 Volume to Capacity 0.00 0.04 0.00 Queue Length 95th (ft) 0 0 0 Control Delay (s) 0.0 0.0 0.0 Lane LOS A Approach Delay (s) 0.0 0.0 0.0 Approach LOS A Intersection Summary Average Delay 0.0 Intersection Capacity Utilization 6.7% ICU Level of Service A Analysis Period (min) 15 Liberty 3:42 pm 05/16/2024 2024 AM Background Synchro 11 Report Page 1 2024 PM PEAK HOUR BACKGROUND Liberty Power Innovations Compressed Natural Gas Facility Weld County, CO Draft Traffic Study LAMP RYN EARSO N HCM Unsignalized Intersection Capacity Analysis 1: County Road 50 & Site Entrance 1 05/23/2024 is _. 4— ak% \ii& I Movement EBL EBT WBT WBR SBL SBR Lane Configurations 4 1+ ite Traffic Volume (veh/h) 0 59 59 0 0 0 Future Volume (Veh/h) 0 59 59 0 0 0 Sign Control Free Free Stop Grade 0% 0% 0% Peak Hour Factor 0.92 0.92 0.92 0.92 0.92 0.92 Hourly flow rate (vph) 0 64 64 0 0 0 Pedestrians Lane Width (ft) Walking Speed (ft/s) Percent Blockage Right turn flare (veh) Median type None None Median storage veh) Upstream signal (ft) pX, platoon unblocked vC, conflicting volume 64 128 64 vC1, stage 1 conf vol vC2, stage 2 conf vol vCu, unblocked vol 64 128 64 tC, single (s) 4.1 6.4 6.2 tC, 2 stage (s) tF (s) 2.2 3.5 3.3 p0 queue free 100 100 100 cM capacity (veh/h) 1538 866 1000 Direction, Lane # EB 1 WB 1 SB 1 Volume Total 64 64 0 Volume Left 0 0 0 Volume Right 0 0 0 cSH 1538 1700 1700 Volume to Capacity 0.00 0.04 0.00 Queue Length 95th (ft) 0 0 0 Control Delay (s) 0.0 0.0 0.0 Lane LOS A Approach Delay (s) 0.0 0.0 0.0 Approach LOS A Intersection Summary Average Delay 0.0 Intersection Capacity Utilization 6.7% ICU Level of Service A Analysis Period (min) 15 Liberty 3:42 pm 05/16/2024 2024 PM Background Synchro 11 Report Page 1 2024 AM PEAK HOUR BUILD -OUT Liberty Power Innovations Compressed Natural Gas Facility Weld County, CO Draft Traffic Study LAMP RYN EARSO N HCM Unsignalized Intersection Capacity Analysis 1: County Road 50 & Site Entrance 1 05/23/2024 is _. 4— ak% \ii& I Movement EBL EBT WBT WBR SBL SBR Lane Configurations 4 1+ itel Traffic Volume (veh/h) 7 59 59 0 0 3 Future Volume (Veh/h) 7 59 59 0 0 3 Sign Control Free Free Stop Grade 0% 0% 0% Peak Hour Factor 0.92 0.92 0.92 0.92 0.92 0.92 Hourly flow rate (vph) 8 64 64 0 0 3 Pedestrians Lane Width (ft) Walking Speed (ft/s) Percent Blockage Right turn flare (veh) Median type None None Median storage veh) Upstream signal (ft) pX, platoon unblocked vC, conflicting volume 64 144 64 vC1, stage 1 conf vol vC2, stage 2 conf vol vCu, unblocked vol 64 144 64 tC, single (s) 4.1 6.4 6.2 tC, 2 stage (s) tF (s) 2.2 3.5 3.3 p0 queue free 99 100 100 cM capacity (veh/h) 1538 844 1000 Direction, Lane # EB1 WB1 SB1 Volume Total 72 64 3 Volume Left 8 0 0 Volume Right 0 0 3 cSH 1538 1700 1000 Volume to Capacity 0.01 0.04 0.00 Queue Length 95th (ft) 0 0 0 Control Delay (s) 0.9 0.0 8.6 Lane LOS A A Approach Delay (s) 0.9 0.0 8.6 Approach LOS A Intersection Summary Average Delay 0.6 Intersection Capacity Utilization Analysis Period (min) 19.0% 15 ICU Level of Service A Liberty 3:42 pm 05/16/2024 2024 AM Build -out Synchro 11 Report Page 1 2024 PM PEAK HOUR BUILD -OUT Liberty Power Innovations Compressed Natural Gas Facility Weld County, CO Draft Traffic Study LAMP RYN EARSO N HCM Unsignalized Intersection Capacity Analysis 1: County Road 50 & Site Entrance 1 05/23/2024 is _. 4— ak% \ii& I Movement EBL EBT WBT WBR SBL SBR Lane Configurations 4 1+ ite Traffic Volume (veh/h) 3 59 59 0 0 7 Future Volume (Veh/h) 3 59 59 0 0 7 Sign Control Free Free Stop Grade 0% 0% 0% Peak Hour Factor 0.92 0.92 0.92 0.92 0.92 0.92 Hourly flow rate (vph) 3 64 64 0 0 8 Pedestrians Lane Width (ft) Walking Speed (ft/s) Percent Blockage Right turn flare (veh) Median type None None Median storage veh) Upstream signal (ft) pX, platoon unblocked vC, conflicting volume 64 134 64 vC1, stage 1 conf vol vC2, stage 2 conf vol vCu, unblocked vol 64 134 64 tC, single (s) 4.1 6.4 6.2 tC, 2 stage (s) tF (s) 2.2 3.5 3.3 p0 queue free 100 100 99 cM capacity (veh/h) 1538 858 1000 Direction, Lane # EB 1 WB 1 SB 1 Volume Total 67 64 8 Volume Left 3 0 0 Volume Right 0 0 8 cSH 1538 1700 1000 Volume to Capacity 0.00 0.04 0.01 Queue Length 95th (ft) 0 0 1 Control Delay (s) 0.3 0.0 8.6 Lane LOS A A Approach Delay (s) 0.3 0.0 8.6 Approach LOS A Intersection Summary Average Delay 0.7 Intersection Capacity Utilization 15.5% ICU Level of Service A Analysis Period (min) 15 Liberty 3:42 pm 05/16/2024 2024 PM Build -out Synchro 11 Report Page 1 SYNCHRO Liberty Power Innovations Compressed Natural Gas Facility Weld County, CO Draft Traffic Study LAMP RYN EARSO N ` Liberty Power Innovations Boulter Site Details Agenda • Liberty's Commitment to Weld County • Why is Compressed Natural Gas Needed? • Community Commitment • Updated Acoustic Study • Impact Mitigation: Visual, Traffic, Lighting Liberty's Commitment to Weld County • Liberty has been providing oilfield services in the DJ Basin since 2016 • Liberty employs over 1,000 Coloradans • Liberty specifically developed the Quiet Fleet to address the issue of noise pollution in the DJ Basin • Last year, Liberty donated over $500,000 to Colorado communities • Last year, Liberty employees volunteered over S00 hours in Colorado, nearly half of the time spent volunteering was in Weld County • Notable Weld County partnerships include: o Purchased K9 for Hudson Police Department o Habitat for Humanity- Greeley/Weld County o Weld County Food Bank o Arbor Foundation o A Precious Child o Feed the Children Liberty employees with Gary, Hudson Police Department's K9 Why is a CNG Terming • Colorado Need i Needed? • Oilfield services traditionally rely on diesel to fuel drilling and frac activity • Over a decade ago, Liberty led the industry in deploying dual -fuel technology, beginning a trend of displacing diesel with natural gas • Technology now moving from dual -fuel to 100% natural gas fuel or direct grid electricity • CNG Terminal Purpose • Today, Liberty & others are displacing diesel in both dual -fuel and pure natural gas -fueled equipment • A CNG terminal provides centralized supply of compressed natural gas for reaching well sites that do not have access to fuel - quality natural gas pipelines • Benefits • Displaces diesel fuel use • Reduces diesel particulate pollutants • Reduces overall field CO2 emissions • Reduces overall cost of oil and natural gas development Local Community Commitment • Location selected due to proximity to development activity & existing oil and gas operations, including gas plant to the east, and higher -capacity road access in all directions • Liberty desires to be a good neighbor • Met several times with nearest residential neighbor, Amy & Virtus Banowetz, and collaborated on ways to further mitigate impact to their property & business • Limiting traffic during outside event times • Commissioned second noise study to address concerns • Identified projects to add visual mitigation to their property • Liberty has provided Banowetz family with a contact person and number to call directly with any concerns so they can be addressed in a timely manner Noise Mitigation Design upgrades: • A sound attenuation study was performed during the initial design phase • A sound barrier near the chillers to the north was recommended to ensure compliance with CRS Noise Limits • Concerns voiced by neighbors that this did not block additional sound in their direction • LPI commissioned a second sound study to look at redesigning the compressor building to both meet CRS limits and reduce noise impact in all directions • Will acoustically upgrade compressor building and utilize low noise cooler fans to reduce noise impact from facility in all directions while meeting compliance along north property line • Modeling indicates the building and fan upgrades reduce noise to the west 3.2 dBA, and the facility contribution in this direction is lower than the current ambient levels Ambient / current existing noise study: • Updated ambient noise study found points along the lease boundary that currently exceed CRS Commercial noise limits of 60 dBA daytime / 55 dBA nighttime due to other large industrial operations in the immediate area • Worked with Weld Co planners & Env. Health Services, resulting in recommendation of 65 dBA 24/7 limit to maintain enforceable minimal area impact since no LPI-specific mitigation would reduce total area noise below existing ambient Visual & Traffic Abatement Visual & Landscaping: • Solid (non -see-through) fencing will be installed around the equipment area • Berms with natural grass will surround the western and southern borders of the facility • Will assist with neighboring property improvements as defined by discussions with Banowetz's Traffic Impact: • The site can fill up to 2.7 trailers/hr, with projected normal operations ^'1.4 trailers/hr • 1 truck every 20-45 min • Traffic projected to be split east and west from site, further cutting local impact • Final traffic analysis found that existing roadways are sufficient as -is i i I 14a i Lighting Plan Ars. trw,ti"ri'sr�IL"�yr`�`� ink I I J Lighting will be directional, downward facing, and localized to critical equipment areas and fill posts on the east side of the site .4 Mallfle FF'r:1EFTY G__f ttodP. It • All buildings will have exterior lights mounted just above egress doors • Load posts and key process areas will have stanchion mounted lights at an e levation of 25' (mostly on e ast side) • Lights will be directional, to limit light pollution < Liberty Power Innovations Appendix Site Views Noise Mitigation Monitoring Point 1 52.6 50.8 51.7 Monitoring Point 2 60.8 56.5 58.9 Monitoring Point 3 57.7 54.6 56.2 Monitoring Point 4 52.3 52.0 52.1 Monitoring Point 5 53.8 53.4 53.6 Monitoring Point 5 Monitoring Point 4 Monitoring Point 3 Proposed Bouiter Farms Location Existing ambient Monitoring Point 1 Monitoring Point 2 Noise Level Leq (t) in dB(A) <a 40.0 40.0 - 45.0 45.0 - 50.0 50.0 - 55.0 55.0 - 60.0 60.0 - 65.0 65.0 - -70.0 70.0 - 75.0 75.0 - 80,0 80.0 - 85.0 85.0 - 90.0 90.0 - 95.0 > 95.0 Model: unmitigated sound impact Figure 4. Mitigation Layout PROPERTY DX IMP? tz) I I I�"'y 1, 1 u ' S 1111111 i �s 0 x x OMIT 791 O X PIPE CORRIDOR melt Upgraded Building Process Cooler Low -Noise Fans 7 Mode(: Mitigated sound impact Jessica Reid From: Sent: To: Cc: Subject: Attachments: Melissa King Tuesday, June 11, 2024 2:50 PM Jessica Reid; Chris Gathman Mike McRoberts; Dawn Anderson RE: DRAFT RESO, USR23-0042, MICHAEL BOULTER FARMS, LLC, C/O LIBERTY POWER INNOVATIONS, LLC (BOCC 061224) USR23-0042 PW Referral REVISED 6 11 2024.pdf; Revised Resolution 6 11 2024.docx Jess and Chris, Thank you for your patience with regard to the timeliness of this email. Please note that this case was continued in order that the applicant could submit an acceptable traffic report. The County received the acceptable Final Traffic Report for this site yesterday at 1:23PM. These requested revisions are a result of the review/acceptance of this Report. In an effort to include the required provisions for the Improvements and Road Maintenance Agreement with Future Triggered Improvements in the Resolution, the attached revisions are being requested. Please note the Public Works Referral has been revised today, uploaded into Accela, and is attached. The applicant has been contacted and has verbally agreed to these specifics. The revisions have been emailed to the applicant, as well. Also, the Resolution has been revised to include specific information about the IARMAwFTI. Please let me know if there are other items or a different format that needs to be submitted for this request, Melissa Melissa J King, PE, CFM Development Review Engineer Weld County Planning Services 1402 N 17th Avenue Greeley, CO 80632 970-400-3762 1 MEMORANDUM A? edc TO: Chris Gathman, Planning Services FROM: Melissa J King. PE, Development Review DATE: January 29, 2024 SUBJECT: USR23-0042 Michael Boulter Farms REVISED 6/11/2024 The proposal has been reviewed on behalf of the Weld County Department of Public Works and the Department of Planning and Zoning. Staff comments made during this phase of the application process may not be all-inclusive, as other issues may arise during the remaining application process. COMMENTS GENERAL PROJECT INFORMATION/LOCATION Project description: A Site -Specific Development Plan and Use by Special Review Permit for an Oil and Gas Support Facility (Compressed Natural Gas (CNG) Station) in the A (Agricultural) Zone District. This project is north of and adjacent to CR 50 and is east of and adjacent to CR 49. Parcel numbers: 096331300016 Lot B AMRE-4936. Access for the proposed USR is onto CR 50 at an existing permitted access point (AP18-00361 and AP19- 00256 - O&G). ACCESS Development Review has reviewed the application materials related to access. The parcel has one existing unpermitted access. onto County Highway 49, just north of the Neres Canal. County Highway 49 is governed by an Access Control Plan (ACP). The ACP states that this access point is for mixed use (Agriculture -Irrigation Ditch and O&G) and that this access point does not meet the Minimum Access Spacing Criteria, in that it is less than the required 1,320 feet from CR 49's intersection with CR 50. The ACP calls for this access point be relocated to meet the Minimum Access Spacing Criteria. It is noted that no additional traffic will use this access point as part of the proposed USR. The parcel has one existing unpermitted access, associated with Neres Ditch, onto CR 50. The parcel has two existing permitted access points onto CR 50, approximately 1,485 feet east of the intersection of CR 49 and CR 50. These access points (AP11-00439) appear to be for the same O&G site. As the most eastern access appears inactive, the applicant should consider reclaiming this location. The parcel has one existing shared permitted access point onto CR 50 at the most southeastern corner of Lot A AMRE-4936 (Parcel No 096331300007). The access permits at this location are AP18-00361 and AP19-00256 O&G. For Lot B to cross Lot A, an access and utility easement of a minimum of 30 feet shall be recorded. It is noted that in the application materials a draft access and utility easement of 35 -feet -wide has been included. No additional access locations are requested. Per Sec. 8-14-30. an Access Permit is required for access to Weld County maintained roadways. We strongly encourage you to discuss your access with Development Review prior to laying out your site plan to ensure the approved accesses are compatible with your layout. Per Sec. 24-8-40, when feasible, there shall be no net increase in the number of accesses to a public road. Minimum access spacing are shown in Weld County Code, Sec. 8-14-30 Table 1. Please refer to Chapter 8 of the Weld County Code for more information regarding access. ROADS AND RIGHTS -OF -WAY County Road 50 is a paved road and is designated on the Weld County Functional Classification Map (Code Ordinance 2017-01) as a collector road, which requires 80 feet of right-of-way. The applicant shall delineate and label on the site map the future and existing right-of-way (along with the documents creating the existing right-of-way) and the physical location of the road. If the right-of-way cannot be verified it shall be dedicated. Pursuant to the definition of setback in the Weld County Code, Sec. 23-1- 90, the required setback is measured from the future right-of-way line. Be aware that physical roadways may not be centered in the right-of-way. This road is maintained by Weld County. Pursuant to CRS 43-2-110(1.5). County Road 49 is designated as a County Highway. The County Highway is designated on the Weld County Functional Classification Map (Code Ordinance 2017-01) as an arterial road. which requires a minimum of 140 feet of right-of-way. or 180 feet of right-of-way in some locations. If the right-of-way cannot be verified it shall be dedicated. The applicant shall also delineate the physical location of the road. Pursuant to the definition of setback in the Weld County Code Sec. 23-1-90. the required setback is measured from the future right-of-way line. This road is maintained by Weld County. Per Chapter 8, Article 13, Section 8-13-30, a Weld County Right -of -Way Use Permit is required for any project that will be occupying. constructing or excavating facilities within, and or encroaching upon, any County rights -of -way or easement. Right -of -Way Use Permit instructions and application can be found at https://www.weldgov. com/Government/Departments/Public-Works/Perm its Weld County will not replace overlapping easements located within existing right-of-way or pay to relocate existing utilities within the County right-of-way. TRAFFIC Recent traffic counts for this portion of CR 50 counted 1,176 average daily vehicles per day with 27% trucks. A pre-iminary traffic etter was submitted. A Final Traffic Report, stamped and signed by a professional engineer licensed in the State of Colorado, shall be submitted. has been accepted. It states that there will be 74 truck roundtrips per day and that 100% of the traffic will travel west on CR 50 to access onto CR 49. No other traffic information is needed at this time. TRACKING CONTROL Tracking control is required to prevent tracking from the site onto public roadways. For access to paved roads. tracking control devices can be double cattle guards with 100 ft. of asphalt or 300 ft of asphalt. For access to gravel roads, tracking control devices must be either double cattle guards with 100 ft. of road base, or road base on all driving surfaces. Temporary Tracking Control shall be used during construction unless permanent tracking control is installed ahead of construction activities. Recycled concrete is not allowed in County right-of-way. Tracking control for unmaintained public right-of-way is required just prior to entering publicly maintained roadways. A variance request for alternatives to the tracking control requirement can be submitted to Development Review for review and consideration. This site requires double cattle guards and 100 ft. of asphalt or 300 ft. of asphalt. IMPROVEMENTS AND ROAD MAINTENANCE AGREEMENT with FUTURE TRIGGERED IMPROVEMENTS Development Review is requesting an Improvements and Road Maintenance Agreement with Future Triggered Improvements. The Road Maintenance Agreement (RMA) includes, but is not limited to, dust control, and damage repair to specified haul routes and to triggered improvements to the intersection of the site access onto CR 50. Improvements to the intersection of the site access onto CR 50 would be triggered when traffic exceeds 10 vehicles per hour turning left from CR 50 into the access for an average daily peak hour and/or 25 vehicles per hour turning right out of the access onto CR 50 for an average daily peak hour. Additionally, on the finalized traffic report. Improvements/Road Maintenance Agreement: An example agreement is available at: https://www.weld.gov/Government/Departments/Planning-and-Zoning/Development-Review . DRAINAGE REQUIREMENTS This area IS within a Non -Urbanizing Drainage Area: Non -Urbanizing Drainage Areas typically require detention of runoff from the 1 -hour, 100 -year, storm falling on the developed site and release of the detained water at the historic runoff rate of the 1 -hour, 10 -year storm falling on the undeveloped site for NON - URBANIZING areas. A Preliminary Drainac A Final Drainage Report and Certificate of Compliance, stamped and signed by a professional engineer licensed in the State of Colorado, shall be submitted. has been received and accepted. No other stormwater management information is needed at this time. Historic Flows: The applicants will be required to maintain the historic drainage flows and run-off amounts that exist from the property. GRADING PERMIT A Weld County Grading Permit will be required if disturbing more than 1 acre. Grading Permit applications are accepted after the planning process is complete (plan recorded) An Early Release Request Form may be entertained only after the applicant, Public Works, and Planning Department have reviewed the referral and surrounding property owner comments. The Early Release Request may or may not be granted depending on referral comments and surrounding property owner concerns. Contact an Engineering representative from the Development Review for more information. A Construction Stormwater Permit is also required with the State for disturbing more than 1 acre. Contact: Colorado Department of Public Health and Environment. Water Quality Control Division, 303-692-3575. CONDITIONS OF APPROVAL A. An Improvements and Road Maintenance Agreement with Future Triggered Improvements is required at this location. Road maintenance includes, but is not limited to, dust control and damage repair to specified haul routes. (Development Review) B A Final Traffic Report, stamped and signed by a professional engineer licensed in the State of Colorado, is required. (Development Review) C- A Final Dca+nage Report and Certificate of Compliance, stamped and signet. by a professiona engineer licensed in the State of Colorado. is required. (Development Review} D. The USR map shall be amended to delineate the following: 1. County Road 50 is a paved road and is designated on the Weld County Functional Classification Map as a collector road which requires 80 feet of right-of-way at full buildout. The applicant shall delineate and label on the site map the future and existing right-of-way (along with the documents creating the existing right-of-way) and the physical location of the road. All setbacks shall be measured from the edge of right-of-way. This road is maintained by Weld County. (Development Review) 2. County Road 49 is designated on the Weld County Functional Classification Map (Code Ordinance 2017-01) as an arterial road, which typically requires a minimum 140 feet. of right-of-way at full build out. Contact Development Review for the location of the existing and future right-of-way and easements and delineate these on the map. (Development Review) Show and label the approved access location onto CR 50, the appropriate access width, and the appropriate turning radii on the site plan. Show all access points associated with the parcel. Include a label for access typed (e.g. Oil and Gas). (Development Review) 4. Show and label the approved tracking control on the site plan. (Development Review) 5. Show and label the accepted drainage features. Stormwater ponds should be labeled as "Stormwater Detention. No -Build or Storage Area" and shall include the calculated volume. (Development Review) 6. Show and label the parking and traffic circulation flow arrows showing how the traffic moves around the property. (Development Review) 7. Show and label the entrance gate if applicable. An access approach that is gated shall be designed so that the longest vehicle (including trailers) using the access can completely clear the traveled way when the gate is closed. In no event. shall the distance from the gate to the edge of the traveled surface be less than 35 feet. (Development Review) Show and label the drainage flow arrows. (Development Review) DEVELOPMENT STANDARDS (NOTES ON THE SITE PLAN) 1. The property owner or operator shall be responsible for controlling noxious weeds on the site, pursuant to Chapter 15, Article I and II, of the Weld County Code. (Development Review) The access to the site shall be maintained to mitigate any impacts to the public road, including damages and/or off -site tracking. (Development Review) Any work that may occupy and or encroach upon any County rights -of -way or easement shall acquire an approved Right -of -Way Use Permit prior to commencement. (Development Review) 4. There shall be no parking or staging of vehicles on public roads. On -site parking shall be utilized. (Development Review) The Property Owner shall comply with all requirements provided in the executed Improvements and Road Maintenance Agreement with Future Triggered Improvements. (Development Review) The Improvements and Road Maintenance Agreement with Future Triggered Improvments for this site may be reviewed on an annual basis, including a site visit and possible updates. (Development Review) Weld County is not responsible for the maintenance of onsite drainage related features. (Development Review) 8. The historical flow patterns and runoff amounts on the site will be maintained. (Development Review) Hello