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O-23-26 Granting a Special Use for a Preliminary Planned Unit Development and Plat for Lemont Fire Protection District Station 1 on 3.68-Acres Located at the Northeast Corner of Walter Road and 127th Street0-20-Z�a 418 Main Street I Lemont, IL 60439 TO: Village Board Meeting FROM: Jamie Tate, Community Development THROUGH: Jason Berry, CEcD, AICP, Economic & Community Development Director SUBJECT: An Ordinance Granting a Special Use for a Preliminary Planned Unit Development and Plat for Lemont Fire Protection District Station 1 on 3.68- Acres Located at the Northeast Corner of Walker Road and 127th Street DATE: March 9, 2026 SUMMARY/BACKGROUND FGM Architects has requested a Preliminary Planned Unit Development (PUD) on behalf of the Lemont Fire Protection District following annexation and rezoning to the Institutional (INT) District. The request would allow construction of a 32,000-square-foot fire station on 3.68 acres at the northeast corner of 127th Street and Walter Street, combining four parcels. Three apparatus bays face 127th Street and site circulation is designed for emergency vehicles. The PUD also includes UDO deviations related to building height, an interim side setback while an existing home remains, the Electronic Message Center (EMC) sign, and a wider emergency access curb cut. ANALYSIS Comprehensive Plan The future land use for the subject property is Neighborhood Retail (NR). Planning & Zoning Commission (PZC) A public hearing to discuss the PUD for Station 1 was held on December 3, 2025. The PZC recommended 6-0 to approve the Preliminary PUD for the Lemont Fire Protection District (LFPD) Station 1. Committee of the Whole (COW) The COW discussed the proposed LFPD Station at 2 meetings - December 15, 2025 and January 26, 2026. Consistency with Village Policy Lemont 2030 Comprehensive Plan STAFF RECOMMENDATION Staff recommends a motion to approve the attached ordinance. BOARD ACTION REQUESTED A motion to approve the attached ordinance. ATTACHMENTS An Ordinance Granting a Special Use for a Preliminary Planned Unit Development and Plat for the Lemont Fire Protection District on 3.68 Acres at Northeast Corner of Walter Street and 127th in Lemont, IL VILLAGE OF LEMONT ORDINANCE NUMBER 0-0.3 -26 AN ORDINANCE GRANTING A SPECIAL USE FOR A PRELIMINARY PLANNED UNIT DEVELOPMENT (PUD) PLAN AND PLAT FOR LEMONT FIRE PROTECTION DISTRICT STATION 1 ON 3.68-ACRES LOCATED AT THE NORTHEAST CORNER OF WALTER STREET AND 127TH STREET IN LEMONT, IL (LFPD Station 1) JOHN EGOFSKE, Village President CHARLENE M. SMOLLEN, Clerk SAMUEL J. FORZLEY JANELLE KITTRIDGE KEN MCCLAFFERTY KEVIN SHAUGHNESSY RICK SNIEGOWSKI RON STAPLETON Trustees Published in pamphlet form by authority of the Village President and Board of Trustees of the Village of Lemont on 3-! 2026 ORDINANCE NO. O- 0 -26 AN ORDINANCE GRANTING A SPECIAL USE FOR A PRELIMINARY PLANNED UNIT DEVELOPMENT (PUD) PLAN AND PLAT FOR LEMONT FIRE PROTECTION DISTRICT STATION 1 ON 3.68-ACRES LOCATED AT THE NORTHEAST CORNER OF WALTER STREET AND 127TH STREET IN LEMONT, IL (LFPD Station 1) WHEREAS, Jacob McLaughlin of FGM Architects (the "Petitioner"), is acting on behalf of the owner of the property covering approximately 3.68-acres on 4 parcels located at 15783, 15747, and 15723 1271h Street (PINS# 22-29-309-004-0000; 22-29-309-005-0000, 22-29-309- 006-0000 and 22-29-309-007-0000), legally described in Exhibit A (hereinafter referred to as the "Subject Property"); and WHEREAS, the Petitioner applied pursuant to the provisions of the Lemont, Illinois Municipal Code, Title 17 Unified Development Ordinance ("UDO") seeking a special use for a preliminary planned unit development (PUD), consisting of the following (hereinafter referred to as "LFPD Station 1 Preliminary PUD"): 1. Plat of Subdivision by Vanderstappen Land Surveying, Inc. dated 11/26/2025, attached hereto and incorporated herein as Exhibit B; and 2. Preliminary Engineering Plans for Lemont Fire Station 1 by FGMA Architects dated 9/12/2025, attached hereto and incorporated herein as Exhibit C; and 3. Stormwater Report by Eriksson Engineering Associates Ltd. dated 9/9/2025, attached hereto and incorporated herein as Exhibit D; and 4. Preliminary Landscaping Plans by FGMA Architects dated 10/6/2025, attached hereto and incorporated herein as Exhibit E; and 5. Traffic Report by Eriksson Engineering Associates, Ltd. dated 9/8/2025, attached hereto and incorporated herein as Exhibit F; and 6. Lemont Fire Station 1 Photometric Plans by FGMA Architects dated 9/12/2025, attached hereto and incorporated herein as Exhibit G; and 7. Exterior and Sign Elevations by FGMA Architects dated 10/21 /2025, attached hereto and incorporated herein as Exhibit H; and 8. Colored Renderings for Lemont Fire Station 1 dated 10/16/2025, attached hereto and incorporated herein as Exhibit I; and WHEREAS, the Planning and Zoning Commission of the Village of Lemont, Illinois conducted a public hearing on December 3, 2025, for the Preliminary Planned Unit Development approval request and voted 6-0 to recommend approval of the Preliminary Planned Unit Development (PUD); and 2 WHEREAS, a notice of the aforesaid public hearing was made in the manner provided by law and was published in the Daily Southtown, a newspaper of general circulation within the Village; and WHEREAS, the Village President and Board of Trustees have reviewed the matter herein and have determined that the requested Preliminary Planned Unit Development is in the best interest of public health, safety, and welfare of the residents of the Village of Lemont, and hereby adopts the finding of facts as set forth in Exhibit J. NOW THEREFORE, be it ordained by the President and Board of Trustees of the Village of Lemont, Cook, DuPage and Will County, Illinois as follows: SECTION ONE: The foregoing findings and recitals are hereby adopted as Section One of this Ordinance and are incorporated by reference as if set forth verbatim herein. SECTION TWO: A Special Use for a Preliminary Planned Unit Development (PUD) and approval of the Preliminary Plat for the Subject Property are hereby granted as provided and conditioned in this Ordinance. SECTION THREE: Conditions. The Special Use for the Preliminary Planned Unit Development (PUD) shall have the following conditions. 1. General Conditions. Unless otherwise approved by the Village Board, the Subject Property shall be developed and maintained in accordance with the Village Code, the conditions of this Ordinance, and the plans and documents incorporated as Exhibits to this Ordinance. Any substantial deviation from the approved Preliminary Planned Unit Development plans shall require approval of an amendment to this Ordinance by the Village Board. 2. Prior to Final PUD approval, the following plans shall be applied for and submitted for approval to the Village: a) Final engineering plan, b) Final photometric plan, c) Final landscape plan, and d) Final architectural plans. 3. Specific Conditions. The following specific conditions shall apply: a) Final PUD Plan. An application for Final PUD is required at the time of Final PUD submittal. b) Departures from Zoning Standards. The following departures from the UDO are a part of this PUD and ordinance: 3 1. Building Height. Section 17.07.010 & Table 17-07-01 — To allow a building height of 36.33 feet in the Institutional (INT) District, as indicated in Exhibit H; and 2. Side Yard Setback (Existing Residence). Section 17.07.010 & Table 17-07- 01 — To allow a reduced side yard setback of 17 feet between the proposed fire station building and the existing residence located at 15723 127th Street, which residence may remain on the property on an interim basis, as indicated in Exhibit C; and 3. Electronic Message Center Sign. Section 17.11.200 — To allow an Electronic Message Center sign on 127th Street, as indicated in Exhibit H; and 4. Electronic Message Center Sign Area. Section 17.11.200 — To allow the Electronic Message Center sign to exceed 33% of the total sign area, as indicated in Exhibit H; and 5. Detention Basin Side Slopes. Section 17.29.020.F1.C2 — To allow side slopes of the dry detention pond to be 3:1, as indicated in Exhibit C; and 6. Curb Cut Width. Engineering Detail LS-3 — To allow a curb cut along 127th Street greater than 35 feet, as indicated in Exhibit C. c) Outstanding Comments. The Petitioner must address all comments forthcoming in the Final plan reviews by the Consulting Planner, Village Engineer, Village Arborist, Village Ecologist, Village Plumber and Fire Marshal, prior to Final PUD approval. d) Preliminary Plat. The Preliminary Plat approved herein shall be subject to final engineering review and approval by the Village prior to approval and recording of the Final Plat of Subdivision. e) Existing Residence. The existing residence located at 15723 127th Street may remain on the property on an interim basis. Upon removal or demolition of the residence, the side yard setback condition associated with the structure shall no longer apply. SECTION FOUR: The preliminary planned unit development (PUD) approval shall lapse in the event the Petitioner does not file a complete application for Final PUD approval within one (1) year of the date of this Ordinance, unless otherwise extended by the President and Board of Trustees of the Village. SECTION FIVE: That the Village Clerk of the Village of Lemont be and is directed hereby to publish this Ordinance in pamphlet form, pursuant to the Statutes of the State of Illinois, made and provided. SECTION SIX: That this Ordinance shall be in full force and effect from and after its passage, approval and publication as provided by law. SECTION SEVEN: All ordinances in conflict herewith are hereby repealed to the extent of such conflict. 4 ADOPTED AND APPROVED BY THE PRESIDENT AND BOARD OF TRUSTEES OF THE VILLAGE OF LEMONT, COUNTIES OF COOK, WILL, AND DUPAGE, ILLINOIS, ON THIS I DAY OF w ae-0� 20 �,V . PRESIDENT AND VILLAGE BOARD MEMBERS: AYES: NAYS: ABSENT: ABSTAIN: Samuel J. sure I/ V Janelle Kittridge Ken McClafferty V . ,V Kevin Shaughnessy Rick Sniegowski Ron Stapleton Attest: Charlene M. Smollen, Village Clerk Of, OF 4'6� QZ (SEAL 1,/en ois 5 John Egofske, Village President Exhibit A Legal Description EXHIBIT A LOT 7 IN LEMONT HIGHLANDS SUBDIVISION OF THE SOUTH 372.5 FEET OF THE EAST 112 OF THE SOUTHWEST 114 OF SECTION 29, TOWNSHIP 37 NORTH. RANGE 11 EAST OF THE THIRD -PRINCIPAL MERIDIAN, ACCORDING TO THE PLAT THEREOF RECORDED MARCH 16, 1949 AS DOCUMENT NUMBER 14513964 IN COOK COUNTY, ILLINOIS. 3of5 PLAT OF SUBDIVISION Vanderstappen FINAL Lnncl Sun eying. Inc. LEMONT FIRE PROTECTION DISTRICT STATION #1 BEING A RESUBDIVISION OF LOTS 8, 9 & 10 IN LEMONT HIGHLANDS SUBDIVISION OF PART OF SECTIONS 29, TOWNSHIP 37 NORTH, RANGE 11 EAST OF THE THIRD PRINCIPAL MERIDIAN, COOK COUNTY, ILUNOIS.. ZONED R-1 VILLAGE OF LEMONT La e. 9 xm l0 1x Ltma,1 ntol— wbaldelpx m mp swm nz.sx I»] or mr of The SwThreel pualer os Seet. 29. Yarneb'M J7 Nwih Nmge II, Enss of IIXe Thu -dpd Xeritlipn, np ml to .. Mal pi — wbm'ndon aetl a —d on ard. 19. 1919, ae Oacumenl xo. 151J86t, n Gwk CwntY• IIINoo. _ Vuln UviMi '2tw•00 esI rza9trA1 I I I I I � � I Lu I I I I I I I I I II N I _ I R �` I LOT 1 I I F 2.766'_ ACRES I ' µ ,-awe• • I I� ��-Y I � I I � I I � I � I I o„< AUYP, ]55 bYIN, erlwl - 127TH STREET F. LEGEND RM O ps RM ® 9 uaxux[xI @I urnsw 0 cwD CIJ9M: EftIX550N ENgxEEHWG OgAhS L10 star. = w 9w>tN er:ly c�cra9Aer: REVISIONS scAla: r=]0' sac._r.X.-e. xo. DATE oEsgePlxX+ ar IS OP 981NING: 1. EAST ZONE N— (20111 P.I.N.: 22-29-309-004 —ODS: —pps JOB X0.: 2501 9— .0. FP9 F98111.9RY C01@pN/A BY_P0._ SNEEi X0. ears err. 'a" 1 OF 2 Exhibit B Plat of Subdivision vandcrstappeG FINAL PLAT' OF SUBDIVISION .. LEMONT FIRE PROTECTION DISTRICT STATION #1 BEIN3 A RESUBOIVISION OF LOTS 7, S e & /0 IN LEMONT HIGHLANDS SUBDIVISION OF PART OF SECTIONS 29. TOWNSHIP 37 NORTH. RANGE 11 EAST OF THE THIRD PRINCIPAL MERIDIAN, COOK COUNTY, ILLINOIS. 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LICENSED PROFESSIONAL www.eeu-ltd.com September 12, 2025 TABLE OF CONTENTS • Existing Conditions • Proposed Conditions o Volume Control o Detention Storage • Appendix 1— Preliminary Stormwater Calculations o Composite Runoff Curve Number (CN) — Existing o Composite Runoff Curve Number (CN) — Proposed o Adjusted Composite Runoff Curve Number (CNADJ) o Orifice Discharge Rate o Nomograph: Bulletin 75 Rainfall Data o Composite Runoff Coefficient (C) — Proposed o Composite Runoff Coefficient (C) — Downstream Site o Emergency Overflow Spillway Calculations • Emergency Overflow Spillway Calculation — Site • Emergency Overflow Spillway Calculation — Site and Downstream Site o Detention Volume Provided o PE Calculation • Appendix 2 — Stormwater Management Exhibits o CDX.1— Drainage Exhibit — Existing Conditions o CDX.2 — Drainage Exhibit — Proposed Conditions o CDX.3 — Drainage Exhibit — Proposed Conditions — Downstream Site September 12, 2025 PRELIMINARY STORM WATER NARRATIVE The proposed Lemont Fire Station 1 project is located at the northeast corner of 127th Street and Walter Street in Lemont, IL. 127th Street forms the south boundary of the site, Walter Street bounds the site to the west, the north boundary of the site is formed by a residential lot and a lot belonging to the Lemont Public Library, and the eastern boundary is formed by another residential property. This property to the east is intended to be purchased and used for future development of the site. Coordination with the owner of the property has resulted in an agreement that the Lemont Fire Protection District may encroach upon their property, and as such, the new Lemont Fire Station 1 is located partially on that property. The project includes the construction of a new fire station, a new parking lot, stormwater management facilities, a water main loop, and a sanitary main extension. Demolition of several trees and grading of the site will be necessary. There will be three driveways installed on site. One driveway is located on 127th street and will be connected to the apparatus bay of the fire station serving as the main dispatch point for emergency vehicles. Two other driveways will be installed along Walter Street, with the southernmost of the two driveways being a right -in only. EXISTING CONDITIONS The site currently contains three individual parcels. The property to the east, which will be purchased in the future, is one individual parcel. The three parcels that are part of the current Fire Protection District property have been vacated prior to construction. Historically, all three parcels have been used as residential homes. The property is 2.76-acres and consists of roughly 9.22% impervious surfaces and 0.96% gravel surfaces. Since the project encroaches on the property to the east, the project area is slightly larger than the property at 2.86 acres with 8.92% impervious area and 0.92% gravel surfaces with a composite runoff curve number (CN) of 81.71. There are no existing stormwater management facilities within the property, however the site drains overland towards the center of the north property line, flowing directly into the Lemont Public Library's stormwater management system. The site includes wells and septic systems that will be removed in the demolition phase of this project. PROPOSED CONDITIONS GEOMETRICS The proposed site will consist of a new fire station building, a new parking lot with pedestrian walks, and stormwater management facilities. There will be three driveways installed on site. One driveway is located on 127th street and will be connected to the apparatus bay of the fire station serving as the main dispatch point for emergency vehicles. Two other driveways will be installed along Walter Street, with the southernmost of the two driveways being a right -in only. The proposed property will include three parcels consolidated into one property with a slight encroachment on the property to the east. The property to the east will eventually be purchased by the fire protection district for future expansion. The proposed 2.86-acre site will be 58.90% impervious with a composite runoff curve number (CN) of 90.60. September 12, 2025 UTILITIES Water A new water service will be needed to provide the new fire station with sufficient domestic and fire flows. To construct this service, a water main loop is proposed to be installed on site Sanitary A new sanitary sewer service will be needed to accommodate the proposed wastewater flow from the new building. At the northwest corner of the site, there is a sanitary main which will be extended along the Walter Street right-of-way. This extension will include one new manhole where the proposed service will be connected. STORMWATER MANAGEMENT The site will be subject to MWRD runoff control, volume control, and detention storage requirements. In the existing condition of the site, stormwater flows overland across the site from south to north, eventually discharging into the Lemont Public Library stormwater system. It is the intent of the design to maintain this stormwater discharge point while considering the potential for negative impacts in the event of excessive flows. Stormwater is collected through a network of catch basins and conveyed through underground pipes which ultimately discharge to the proposed dry -bottom stormwater basin. The existing drainage pattern of the site is intended to be maintained, including the discharge to the library's stormwater management system. Volume Control The project area contains 1.684 acres of impervious area, which results in a volume control requirement of 0.140 acre-feet. This storage will be contained upstream of the proposed detention basin in a series of catch basins and perforated pipes surrounded by well -draining stone to promote infiltration into the soil below. The designed facility contains 0.147 acre-feet of volume control storage allowing for a reduced composite runoff curve number of 85.47. Detention Storage The detention storage requirement for the site was determined using the MWRD nomograph method and is based on Bulletin 75 rainfall data. The results of this analysis is included in the appendices of this report. This site is tributary to the Calumet -Sag channel, which has the maximum allowable release rate of 0.300 cfs/acre. The total allowable release rate for this site is 0.858 cfs. Per the MWRD methodology, the project area has a composite runoff curve number of 90.60, and after considering volume control storage provided, the adjusted composite runoff curve number is 85.47. Storm water detention for the proposed project area is provided through a dry -bottom detention basin. The dry - bottom detention basin will be located on the north side of the site. The runoff from the proposed building will be collected via internal roof drains/downspouts and will be discharged from the north side of the building to an adjacent storm structure. The outlet control structure will be designed to ensure the runoff from the 100-year, 24-hour rainfall event will not exceed regulatory requirements. Under the 100-year, September 12, 2025 24-hour storm, the high-water level of the basin is elevation 743.96. A restrictor structure will be provided to constrain the release rate below the allowable release rate of 0.858 cfs mentioned above. This restrictor will be a 3.5625" cored hole in an MWRD-style plate restrictor, providing a release rate of 0.84 cfs. Considering these factors, the detention requirement at the actual release rate is 0.883 ac-ft. The proposed basin holds 0.89 ac-ft of detention storage at the high water level. Runoff Control The tributary area to the basin includes the 2.86 acres of the project area. This area has a composite C value of 0.72, which, using the rational method, equates to a peak 100-year inflow of 19.21 cfs. Along the crest of the berm which forms the detention basin, a 30-foot-long notch is proposed as an emergency overflow weir to handle this runoff. In the condition of a clogged restrictor and unavailable detention storage, this 19.21 cfs flow is routed overland to the same discharge point as the detention basin. The 30- foot-long notch in the berm can convey 27.58 cfs at a spill elevation of 744.50 and a crest elevation of 745.00. The nearest on -site finished floor elevation is 750.50. Downstream Impacts The site discharges into the major stormwater system associated with the Lemont Public Library, as it was in the existing conditions. To ensure that the construction of the fire station site does not adversely impact the downstream library, a calculation has been provided in Appendix 1 ensuring that the emergency overflow spillway from the library site is able to handle the 100-Year Runoff Rate from both the library site and the fire station site while retaining the 1-foot buffer between the crest of the overflow and the finished floor elevation. The sidewalk north of the library serves as the emergency overflow spillway for the library site. At a crest elevation of 733.55, this overflow weir can convey 41.74 cfs. The 100-year runoff rate from the combined sites equates to 35.83 cfs. September 12, 2025 APPENDIX 1 PRELIMINARY STORMWATER CALCULATIONS COMPOSITE RUNOFF CURVE NUMBER (CN) PROJECT: Lemont Fire Station 1 PERMIT NUMBER: LOCATION: Lemont TYPE OF AREA (SELECT WITH DROP -DOWN) X DETAINED AREA UNRESTRICTED AREA UPSTREAM AREA CONDITION (SELECT WITH DROP -DOWN) PROPOSED CONDITION RUNOFF CURVE NUMBER DATE: 8/13/2025 MAJOR STORMWATER SYSTEM OTHER: X EXISTING CONDITION Surface Description Hydrologic Soil Group (HSG) CN Area (acres) Product (CN)(Area) Impervious D 98 0.25 24.99 Gravel D 91 0.03 2.40 Pervious D 80 2.58 206.21 TOTALS: 2.86 233.59 COMPOSITE RUNOFF CURVE NUMBER Total Product 233.59 Composite CN = _ -> Composite CN = 81.71 Total Area 2.86 4/7/2022 COMPOSITE RUNOFF CURVE NUMBER (CN) PROJECT: Lemont Fire Station 1 LOCATION: Lemont TYPE OF AREA (SELECT WITH DROP -DOWN) X DETAINED AREA UNRESTRICTED AREA UPSTREAM AREA CONDITION (SELECT WITH DROP -DOWN) X PROPOSED CONDITION RUNOFF CURVE NUMBER PERMIT NUMBER: DATE: 8/13/2025 MAJOR STORMWATER SYSTEM OTHER: EXISTING CONDITION Surface Description Hydrologic Soil Group (HSG) CN Area (acres) Product (CN)(Area) Impervious D 98 1.68 165.02 Pervious D 80 1.18 94.00 COMPOSITE RUNOFF CURVE NUMBER Composite CN = TOTALS: 2.86 259.02 Total Product 259.02 --> Composite CN = 90.60 Total Area 2.86 4/7/2022 ADJUSTED COMPOSITE RUNOFF CURVE NUMBER (CNADJ ) PROJECT: Lemont Fire Station 1 LOCATION: Lemont DEVELOPMENT INFORMTION 1. Area Detained, A 2. Total Impervious Area 3. Composite CN 4. Volume Control Storage Provided, VCP 5. Depth of Rainfall, P RUNOFF VOLUME (NRCS EQUATIONS) 1000 6. Maximum Retention, S S = CN — 10 (P — 0.25)2 7. Runoff Depth, Q o QD - (P + 0.85) 1 8. Runoff Volume, VR VR = QoA in) 12 ft VOLUME CONTROL STORAGE 9. Volume Control Storage Required, VCR 10. Additional Volume Control Storage Provided ADJUSTED RUNOFF VOLUME 11. Adjusted Runoff Volume, VADJ VADJ = VR — VCP 12. Adjusted Runoff Depth, QAp, 13. Adjusted Maximum Retention, SARI ADJUSTED COMPOSITE RUNOFF CURVE NUMBER 14. Adjusted Runoff Curve Number, CNADJ PERMIT NUMBER: DATE: 2.859 1.684 90.60 0.147 8.57 1.04 7.44 1.77 8/13/2025 acres acres inches inches inches ac-ft 0.140 ac-ft 0.007 ac-ft 1.625 6.82 1.70 85.47 ac-ft inches inches 4/7/2022 ORIFICE DISCHARGE RATE PROJECT: Lemont Fire Station 1 PERMIT NUMBER: LOCATION: Lemont DATE: 8/13/2025 RESTRICTOR INFORMTION 1. Orifice Number 1 2. Orifice diameter, d 3.56 in 3. Discharge Coefficient, Cd 0.61 4. Invert Elevation 737.64 ft 5. High Water Elevation, HWL 743.96 ft 6. Tail Water Elevation ft ACTUAL RELEASE RATE 6. Free Flow Actual Release Rate at HWL 0.84 cfs 7. Submerged Actual Release Rate at HWL cfs STAGE -DISCHARGE TABLE CONDITION (SELECT FROM DROP -DOWN) Free -flow STAGE -DISCHARGE TABLE • Orifice 1 Orifice 2• .11 11 1 11 1 11 .1 11 111 1 11 .I 11 1 11 1 11 .1 11 1 11 I /1 11 1 11 .I 11 1 11 1 11 .1' 11 111 1 11 .1. 11 111 1 11 1 I/ 111 111 11 1 11 111 �� 11 111 1 11 4/7/2022 NOMOGRAPH: BULLETIN 75 RAINFALL DATA PROJECT: Lemont Fire Station 1 LOCATION: Lemont DEVELOPMENT INFORMATION 1. Detained Area 2. Curve Number 3. Actual Release Rate REQUIRED DETENTION VOLUME 4. Required Detention Volume NOMOGRAPH 0.800 0.700 u Y 0.600 V v E 0.500 0 c 0.400 c v v 0 0.300 7FI�ZiJ 0.100 o.000 50 55 60 PERMIT NUMBER: DATE: 8/13/2025 NOMOGRAPH: BULLETIN 75 65 70 75 80 85 90 Curve Number 2.859 acres 85.47 0.840 cfs 0.883 ac-ft 0.00 cfs/ac 0.05 cfs/ac 0.10 cfs/ac 0.15 cfs/ac 0.20 cfs/ac 0.25 cfs/ac 0.30 cfs/ac 95 100 4/7/2022 COMPOSITE RUNOFF COEFFICIENT (C) PROJECT: Lemont Fire Station 1 PERMIT NUMBER: LOCATION: Lemont TYPE OF AREA (SELECT WITH DROP -DOWN) X DETAINED AREA UNRESTRICTED AREA UPSTREAM AREA CONDITION (SELECT WITH DROP -DOWN) X PROPOSED CONDITION RUNOFF COEFFICIENT DATE: 8/13/2025 MAJOR STORMWATER SYSTEM OTHER: EXISTING CONDITION Surface Description C Area (acres) Product (C)(Area) Impervious 0.90 1.68 1.52 Pervious 0.45 1.18 0.53 TOTALS: 2.86 2.04 COMPOSITE RUNOFF COEFFICIENT Total Product 2.04 Composite C = _ 4 Composite C = 0.72 Total Area 2.86 4/7/2022 COMPOSITE RUNOFF COEFFICIENT (C) PROJECT: Lemont Fire Station 1 PERMIT NUMBER: LOCATION: Lemont TYPE OF AREA (SELECT WITH DROP -DOWN) X DETAINED AREA UNRESTRICTED AREA UPSTREAM AREA CONDITION (SELECT WITH DROP -DOWN) X PROPOSED CONDITION RUNOFF COEFFICIENT DATE: 8/13/2025 MAJOR STORMWATER SYSTEM OTHER: EXISTING CONDITION Surface Description C Area (acres) Product (C)(Area) Impervious 0.90 1.19 1.07 Pervious 0.45 1.55 0.70 TOTALS: 2.74 1.77 COMPOSITE RUNOFF COEFFICIENT Total Product 1.77 Composite C = Composite C = 0.65 Total Area 2.74 4/7/2022 Emergency Overflow Spillway Calculations Lemont Fire Station DJN 0,41 �k ERIKSSON 100-year Rainfall Event - Site ENGINEERING ASSOCIATES, LTD. Equation used: Q = C i A (The Rational Formula) Tributary Area = 2.86 acre Composite Runoff Coefficient = 0.72 Time of Concentration, Tc = 0.25 hours 100 year Rainfall Depth (Bulletin 70) = 8.57 inches 100 year Rainfall Intensity = 9.33 inches/hour 100-Year Runoff Rate = 19.2 cfs Weir Equation: Q = 3.03 L H(312) (Broad Crested Weir) **concrete** Weir Equation: Q = 2.60 L H(312) (Broad Crested Weir) **grass** Where: L (length) = 30 ft. H (head) = 0.42 ft. Pond Overflow Rate Q = 20.98 cfs Emergency Overflow Spillway Calculations Lemont Fire Station DJN'01 ERIKSSON 100-year Rainfall Event - Site And Downstream Site ENGINEERING ASSOCIATES, LTD. Equation used: Q = C i A (The Rational Formula) Tributary Area = 5.60 acre Composite Runoff Coefficient = 0.69 Time of Concentration, Tc = 0.25 hours 100 year Rainfall Depth (Bulletin 70) = 8.57 inches 100 year Rainfall Intensity = 9.33 inches/hour 100-Year Runoff Rate = 35.83 cfs Weir Equation: Q = 3.03 L H(3121 (Broad Crested Weir) **concrete** Weir Equation: Q = 2.60 L H(312) (Broad Crested Weir) **grass** Where: L (length) = 72 ft. H (head) = 0.33 ft. Pond Overflow Rate Q = 41.74 cfs DETENTION VOLUME PROVIDED PROJECT: Lemont Fire Station 1 LOCATION: Lemont AREA UNITS (CHOOSE WITH DROP -DOWN) Units: ft, POND / VAULT / SURFACE DETENTION VOLUME PERMIT NUMBER: DATE: 8/13/2025 Elevation (ft) Area (ft2) Average Area (ft2) Increment Volume (ac-ft) Cumulative Volume (ac-ft) 738.00 548.87 0.00 1448.58 0.03 739.00 2348.28 0.03 3218.06 0.07 740.00 4087.83 0.11 5388.74 0.12 741.00 6689.65 0.23 8125.15 0.19 742.00 9560.65 0.42 9986.45 0.23 743.00 10412.24 0.65 10827.77 0.24 743.96 11243.30 0.89 11260.76 0.01 744.00 11278.22 0.90 STORM SEWER DETENTION VOLUME Diameter Length Volume (in) (ft) (ac-ft) TOTAL DETENTION VOLUME Pond / Vault / Surface Detention Volume (ac-ft) Storm Sewer Detention Volume (ac-ft) Total Detention Volume (ac-ft) 0.90 0.00 0.90 4/7/2022 Sanitary Flow Calculation Project: Lemont Fire Station 1 By: DJ N Date: 9/5/2025 ERIKSSON ENGINEERING POPULATION EQUIVALENT (PE CALCULATION) - Lemont Fire Station 1 ASSOCIATES, LTD. No. of Users User Type GPD Unit Total GPD PE 14 Office Worker 15 210 2.1 7 Firefighters 100 700 7.0 TOTAL PE = 9.1 FLOW CALCULATIONS Average Flow = 9.1 x 100 Gal / Day = 910 GPD IEPA PEAK FACTOR = 18+V(PE/1000) = 4.4185 4+d(PE/1000) PEAK FLOW = Average Flow x Peak Factor = 4,021 GPD September 12, 2025 APPENDIX 2 STORMWATER MANAGEMENT EXHIBITS �3 i y '_• WO ': 6E40911' MUM IN Q� Q E 133U15 H1CZi'8133U15 U311VM j0 U3NU073N zz (, 'd SR y_ s LNU1SI0 N0113310Ud 9NIi 1NOW3l ow 18 2 1 i NOUV1S 3NIj 1NOW31 - w w z a w � t7 I i J _ N � _ f z gr h z Ix Wtl [0�>t-tl 62�2/60/6 x 1 e � 3a z 4-4 & o - t 6£60911 '1NOW31 a o LAKS H1LZi B 133H1S H31lVM iO H3NHOJ 3N i o t - a lOIKSIO N01173101dd 3HIJ 1NOW31 a'o ( a S NOIIV1S 3ald 1NOW31 We nz o, os�o��so�b 14 znj- 6EbO9 11 'iNOV431 AIKS HIM W i33)JISld31lvm JO lJgNUO:) 3N IDI'diStO N0II03iOUd 38IJiNOV431 I NOIIVIS HIA INOW31 M z W C3 ' ' 1 -41 33 1$3 3 0 SZOZ/9o/oT Imaa SS38DOWd o . °z z �• ;° — — : e S,�F e�'3„$ ll'1NOW3l "15 HIM 9"15 N311tlM 1j €; e c i a 13I81SIG NOIll310Ld 3UId 1NOVY3l SNOIltl153Nld1NOVY31 g i �..... a rrrrr larrtrrrtr�tt rrrrrr:rrrvrrrt la�'.,:fv sai i.t is }�3 1,le{-%irij3r� SM/90101 1N111d SS3990114 E CR 11 'INOV431 "IS HiRTWIS N111VPA IDJUSIG NOUD3101dd 381A INOIN31 9 T NOLLVIS 3HU MOVM31 zi I Z SZO7190101 1NIHd 9939DONd a e'.ges d go 1'V'l1j$pa s s a Z Z y veep Fg ll'1NOW3l'15 H1LZi'd'15 N311tlM J $� F &,a DIHIS10 N0117310Ld I'M 1NOW3l Y 33 0� �- u a 1 �a�1 p_ . 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I✓ _ V� gkLZ n l �}��(('''jj7j�� • • Z N • 3 I I I � \ 1 pails aal1c)m Exhibit F Traffic Report 11 Memorandum TO: Mr. Jason Estes ERIKSS❑N FGM Architects. ENGINEERING ASSOCIATES, LTD. FROM: Stephen B. Corcoran, P.E., PTOE Director of Traffic Engineering Kevin Morales, E.I.T. Traffic Engineer DATE: September 8, 2025 RE: Fire Station No. 1 Traffic Study Lemont Fire Department Lemont, Illinois This traffic report summarizes a traffic study for a proposed fire station located on the northeast corner of Walter Street at 127th Street in Lemont, Illinois. The site is currently vacant. Access to the station will be provided by a full access drive and an inbound only drive on Walter Street. An emergency vehicle full access drive will be provided on 127th Street. The purpose of this study was to examine existing and future traffic conditions around the site, assess the impact that the proposed station will have on traffic conditions in the area, and determine if any roadway or access improvements are necessary to accommodate the station traffic. Site Location and Area Land -Use The site is located on the northeast corner of Walter Street at 127th Street and is vacant. Land uses in the vicinity of the site are single-family homes and a public library to the north, commercial buildings to the east, a shopping center and single-family homes to the south, and office buildings, a day care, a post office, and single-family homes to the west. Figure 1 illustrates the site location and the adjacent roadways. (All figures are located at the end of the report) Roadway Characteristics A description of the area roadways providing access to the site is provided below: Walter Street is a north -south local roadway with one travel lane in each direction and has a posted speed limit of 20 mph. On street parking is allowed on both sides of the road except for a 130' section on the east side of the road beginning at the intersection of 127th Street. There is a two-way stop -controlled intersection at 127th Street with a crosswalk and stop sign on the north leg of the intersection and a median left turn lane on the west leg of the intersection. Walter Street is under the jurisdiction of the Village of Lemont. 127th Street is an east -west major collector roadway with one travel lane in each direction and has a posted speed limit of 35 mph. On street parking is not allowed on either side of the road at any time. At its intersection with Emerald Drive, there is a dedicated left turn lane on the east leg of the intersection and a stop sign and crosswalk on the south leg of the intersection. 127th Street is under the jurisdiction of the Cook County Department of Transportation and Highways. Emerald Drive is a north -south local roadway with one travel lane in each direction and has a posted speed limit of 20 mph. On street parking is not allowed on either side of the road at any time. Emerald Drive is under the jurisdiction of the Village of Lemont. Figure 2 illustrates the existing roadway geometrics. Existing Traffic Volumes Weekday morning (6:00 AM to 8:00 A.M.) and afternoon (4:00 P.M. to 6:00 P.M.) peak traffic counts were collected on Wednesday August 611, 2025, at the intersections of 127th Street at Walter Street and at Emerald Street. Fire department staffing schedule consists of 24-hour shifts starting and ending at 7:00 AM. Incoming staff generally arrives before 7:00 AM and departing staff leave after 7:00 AM. Administrative staff works from 8:00 AM to 5:00 PM. The traffic volumes were analyzed for the periods of 7:00 to 8:00 AM 2 1 Mr. Jason Estes • 9.8.2025 and 5:00 to 6:00 PM when staff traffic occurs at the station. The existing traffic volumes are shown in Figure 3 and included in the Appendix. Site Development Plan The proposed plan is to construct a new fire station with a single full access driveway and a one-way entrance driveway on Walter Street with an additional full access driveway on 127'h Street for emergency vehicles only. The driveways along Walter Street provide access to the emergency vehicle bays and to the staff parking lot. The driveway along 1271h Street provides access to the emergency vehicle bays. Site Trip Generation Traffic volumes generated by the fire station are based on the fire department's staffing plan. Fire department staffing schedule consists of 24-hour shifts starting or ending at 7:00 AM. Generally incoming staff arrive at 7:00 AM and departing staff leave after 7:00 AM. The incoming administrative staff arrive at 8:00 AM and depart at 5:00 PM. The traffic study is based on the 7-person firefighter and 14-person administrative staff shifts. Table 1 summarized the proposed site traffic volumes. Overall, the amount of fire station traffic is minimal. Table 1 Station Traffic Volumes AM Peak Hour PM Peak Hour In Out Total In Out Total 14 7 21 0 14 14 Directional Distribution The trip distribution for an institutional development is based on a combination of the road network, the existing traffic flows, and fire district boundaries. The trip distribution for the site is shown on Table 2 and Figure 4. Table 2 Directional Distribution on Adjacent Roadways Direction Distribution East on 12711 Street 45% West on 1271h Street 50% North on Walter Street 5% Total 100% Site Traffic Volumes Station traffic was assigned to the road system and access drives based on the directional distribution from Table 2. Figure 5 illustrates the traffic assignment of the vehicle trips at the station. Total Traffic Volumes Total traffic volumes are a combination of the existing traffic volumes, projected non -site growth in those volumes, and the site related traffic. Traffic projections were estimated for a period of five years in the future after construction (Year 2031). A regional growth rate of 1.1 % per year was applied to Walter Street, 127th Street, and Emerald Drive to obtain the base 2031 volumes (see Figure 6). The growth rates were provided by the Chicago Metropolitan Agency for Planning. The volumes from Figure 6 were combined with the site volumes (Figure 5) to generate the Year 2031 total traffic volumes are shown on Figure 7. Intersection Capacity Analyses To determine the operation of the study area intersections and the access drives, intersection capacity analyses were conducted for the existing and projected traffic volumes. An intersection's ability to 3 1 Mr. Jason Estes • 9.8.2025 accommodate traffic flow is based on the average control delay experienced by vehicles passing through the intersection. The intersection and individual traffic movements are assigned a level of service (LOS), ranging from A to F based on the control delay created by a traffic signal or stop sign. Control delay consists of the initial deceleration delay, queue move -up time, stopped delay, and final acceleration delay. LOS A has the best traffic flow and least delay. LOS E represents saturated or at capacity conditions. LOS F experiences oversaturated conditions and extensive delays. The Highway Capacity Manual definitions for levels of service and the corresponding control delay for both signalized and unsignalized intersections are shown in Table 3. Table 3 Level of Service Criteria for Intersections Control Delay Level of Description seconds/vehicle Signals Roundabout Stop Signs Service A Minimal delay and few stops <10 <10 <10 B Low delay with more stops >10-20 >10-15 >10-15 C Light congestion >20-35 >15-25 >15-25 D Congestion is more noticeable with >35-55 >25-35 >25-35 longer delays E High delays and number of stops >55-80 >35-50 >35-50 F Unacceptable delays and over >80 >50 >50 capacity Source: Highway Capacity Manual Capacity analyses were conducted for each intersection using the SYNCHRO capacity software to determine the existing and future operations of the road network and access system. These analyses were performed for the weekday morning and evening peak -hours. The capacity analyses are summarized in Table 4 and are included in the Appendix. Table 4 Level of Service and Delay Morning Peak Evening Peak Intersection Approach 2025 2031 2025 2031 1271h at SB Approach C-16.7 C-19.0 E-43.6 F-83.7 Walter Street (Two -Way Stop) EB Left A-8.8 A-9.0 A-9.2 A-9.4 12711 at NB Approach C-16.0 C-17.0 E-38.9 E-42.2 Emerald Drive (Two -Way Stop) WB Left A-0.0 A-8.3 B-10.5 B-10.7 Walter Steet at WB Approach A-9.1 A-9.7 North Access Drive (Two -Way Stop) SB Left A-7.3 A-0.0 Walter Street at South Access Drive (Uncontrolled SB Left A-0.0 A-0.0 Intersection 1271h Street at Walter Street The intersection of 127th Street and Walter Street is currently operating at an acceptable level of service for the southbound approach during morning peak hours. Due to increase in evening peak hour volumes on 127'h Street, the level of service falls is E or F. However, it is important to note that it is not uncommon for vehicles entering a major collector roadway from a side street to have a level of service of F. In addition, site traffic annual growth is a contributing factor which decreases of the level of service. Additional traffic 4 1 Mr. Jason Estes • 9.8.2025 volume generated form the proposed site will have little impact to the level of service. No further roadway improvements at the intersection are required. 127th Street at Emerald Drive The intersection of 1271h Street and Emerald Drive is currently operating at an acceptable level of service. Additional traffic generated from the proposed site will have little impact to the level of service. No further roadway improvements are required. Walter Street at North Access Drive The proposed intersection at the fire station has one inbound lane and one outbound lane, under stop sign control. Due to the low volume of station traffic, the inbound and outbound traffic will operate well. Emergency vehicles returning to the station will also use this drive. Any emergency vehicle maneuvering to the emergency bays will enter view the North Access Drive. Walter Street at South Access Drive The proposed intersection at the South Access Drive of the fire station will be inbound only and can be accessed by vehicles entering from the southbound and northbound directions on Walter Street. Due to the low volumes of station traffic, the inbound and outbound traffic will operate well. Emergency Vehicle Drive Advance warning signs alerting drivers of the emergency drive should be places 305 feet east and west of the drive on 127th Street. The signs should be a W11-8 with a firetruck silhouette (30"x30") with an AHEAD sign mounter below (24"x13"). Next to the drive, another W11-8 sign with a WHEN FLASHING sign (24"x12") and solar powered flashing yellow beacon should be provided. An opticon device in front of the station driveway on 127th Street will trigger the flashing lights. Conclusions Based on the following analyses, the following conclusions were developed: 1. The total volume of station traffic that will be generated is minimal (7-14 vph). 2. The results of the capacity analyses indicate that the existing roadway system will have sufficient reserve capacity to accommodate the stations traffic volumes. 3. The proposed fire station has an all -access drive under stop sign control and a left/right inbound only drive. Additionally, a vehicles bay will only be used to exit the site by emergency vehicles. 4. Fire station warning signs with flashing lights should be installed on 127th Street to alert motorists that an emergency vehicle is leaving the station. F I aalleM NJ 4op a ti N aniaa pleaaW _ O hails aalsula-1 Z L o Z J W w LO W Q Z W w a Q Ya 0M O cfl O o a o a) mLM 0 co W a o a 0 i �5 o 0 0 0 N o m � Q iri U I- W CD— J W I � I laaalS aalleM o Q I 1' N E Y J co � -� f U. 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Appendix • Existing 2025 Traffic Counts • CMAP Growth Letter • Intersection Capacity Analyses • 2025 Existing Conditions • 2031 Total Traffic Volumes Illinois Wisconsin Incliono www.eea-ltd.corn 145 Commerce Drive, Suite A, Grayslake, IL 60030 1 847.223.4804 -9 O W CV O P O W `O P N v C W P W W W W W W a0 a 2 is 00000 0 0 0 0 0 O M W M O CN h N N P Cl) O R 10 C+ N N O 00 Zo'oncow V o o Ln F Le, O a o V W � h P u1 h � M h P OD n N 7 O Cl) P W P N N O 7 V �O �- �O W M�Ln O F .- N N co M M M V V M M M } N M coM V I� W N W N 0 O JM N r- V' N 'a y C N p L 01 P N {A N h W V V O N N O N P M M O LC)_ M M -O W 'o i� P h M h N 'o W N (a,m Lo N a w r O 00 co r c � � 00 00 O C CL O Q Q O O O O O L Z L S w O r Z O H C 00 O O o E r v J r i N J J F 00 00 W -a L4 O 01,00 ONO O N N O N 0000O O V ,M �O V N N OO M - -CNCoLoCVw iz N d 3 -a� r S N M P ry^ O P V^ M r N^ +- C h W W N M V M CO L P W P W V Jj r ,� N h h O O d N C`I 1 [ L l O O -a O O O co 3 to Q Q T T O a O j N h Lo Lo 00 41 'o .- O V' N O N M M N N W N C9 C 3 3 � a ::E ::E ::E ::E :E ::E ::E� Q ��ii _- Q) a a a a a a a a a$ a a d a o 0 o no noLo0Ln o� 0Lo0Lo0Lno� M V O M V o m Or M V O 7 co y r O 7 .. .. .. .. .. .. .. . 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O 'O -O -O 'O C V 'V' V V V) V) V) V1 O E Chicago Metropolitan Agency for Planning Kevin Morales Traffic Engineer Eriksson Engineering Associates, LTD. 135 S Jefferson St Suite 135 Chicago, IL 60661 Subject: 127th Street and Walter Street Village of Lemont, IDOT Dear Mr. Morales-. 433 West Van Buren Street, Suite 450 Chicago, It. 60607 cmap.illinois.gov 1 312-454-0400 July 29, 2025 In response to a request made on your behalf and dated July 29, 2025, we have developed year 2050 average daily traffic (ADT) projections for the subject location. ROAD SEGMENT Current ADT 2022) Year 2050 ADT 127'h Street from west of Leinster Drive to west of Emerald Drive 5,500 7,200 1271h Street east of Emerald Drive 12,500 16,400 Traffic projections are developed using existing ADT data provided in the request letter and the results from the June 2025 CMAP Travel Demand Analysis. The regional travel model uses CMAP 2050 socioeconomic projections and assumes the implementation of the ON TO 2050 Comprehensive Regional Plan for the Northeastern Illinois area. The provision of this data in support of your request does not constitute a CMAP endorsement of the proposed development or any subsequent developments. If you have any questions, please call me at (312) 386-8806 or email me at Rodriguezgcmap.illinois.gov Rf�y Jose Rodriguez, PTP, AICP Senior Planner, Research & Analysis cc: Village of Lemont, IDOT S:\AdminGroups\ResearchAnalysis\2025_trafficForecasts\Lemont\ck-81-25\ck-81-25.docx TRAFFIC FORECAST RECORD Record Number: ck-81-25 Type of Report: Projection Year Sought: 2050 Analyst: JAR Organization Requestion Forecast: Eriksson Engineering Associates Contact: Kevin Morales Email or Phone: kmorales@cea-ltd.com Sponsor: Village of Lemont, IDOT Date request was received: 7/29/2025 Date that response was emailed: 7/29/2025 Facility Location: 127th Street and Walter Street Municipality: Lemont HCM 7th TWSC 2: 127th St & Walter St 08/13/2025 Intersection Int Delay, s/veh Movement 1.2 EBL EBT WBT WBR SBL SBR Lane Configurations t 1 Y Traffic Vol, veh/h 22 335 464 12 17 34 Future Vol, veh/h 22 335 464 12 17 34 Conflicting Peds, #/hr 0 0 0 0 0 0 Sign Control Free Free Free Free Stop Stop RT Channelized - None None - None Storage Length 120 - 0 Veh in Median Storage, # - 0 0 0 Grade, % - 0 0 0 Peak Hour Factor 80 80 80 80 80 80 Heavy Vehicles, % 2 2 2 2 2 2 Mvmt Flow 28 419 580 15 21 43 Major/Minor Major1 Major2 Minor2 Conflicting Flow All 595 0 0 1061 588 Stage 1 - - - 588 - Stage 2 - 474 - Critical Hdwy 4.12 - 6.42 6.22 Critical Hdwy Stg 1 - 5.42 - Critical Hdwy Stg 2 - 5.42 - Follow-up Hdwy 2.218 3.518 3.318 Pot Cap-1 Maneuver 981 248 509 Stage 1 - 555 - Stage 2 - 626 - Platoon blocked, % Mov Cap-1 Maneuver 981 241 509 Mov Cap-2 Maneuver - 241 - Stage 1 540 Stage 2 626 Approach EB WB SIB HCM Control Delay, s/v 0.54 0 16.7 HCM LOS C Minor Lane/Major Mvmt EBL EBT WBT WBR SBLn1 Capacity (veh/h) 981 371 HCM Lane V/C Ratio 0.028 0.172 HCM Control Delay (s/veh) 8.8 - 16.7 HCM Lane LOS A C HCM 95th %tile 0(veh) 0.1 0.6 2025 Existing AM Peak Synchro 12 Report Erkisson Engineering Associates, Ltd. Page 1 HCM 7th TWSC 7: Emerald Dr & 127th St 08/13/2025 Intersection Int Delay, s/veh 0.2 Movement EBT EBR WBL WBT NBL NBR Lane Configurations T4 t Y Traffic Vol, veh/h 347 5 0 471 5 3 Future Vol, veh/h 347 5 0 471 5 3 Conflicting Peds, #/hr 0 0 0 0 0 0 Sign Control Free Free Free Free Stop Stop RT Channelized None - None - None Storage Length 135 - 0 Veh in Median Storage, # 0 - 0 0 Grade, % 0 - 0 0 Peak Hour Factor 81 81 81 81 81 81 Heavy Vehicles, % 2 2 2 2 2 2 Mvmt Flow 428 6 0 581 6 4 Major/Minor Major1 Major2 Minorl Conflicting Flow All 0 0 435 0 1013 431 Stage 1 - - - - 431 - Stage 2 - 581 - Critical Hdwy 4.12 6.42 6.22 Critical Hdwy Stg 1 - 5.42 - Critical Hdwy Stg 2 - - 5.42 - Follow-up Hdwy 2.218 3.518 3.318 Pot Cap-1 Maneuver 1125 265 624 Stage 1 - 655 - Stage 2 - 559 - Platoon blocked, % Mov Cap-1 Maneuver 1125 265 624 Mov Cap-2 Maneuver - 265 - Stage 1 - 655 Stage 2 559 Approach EB WB NB HCM Control Delay, s/v 0 0 15.98 HCM LOS C Minor Lane/Major Mvmt NBLn1 EBT EBR WBL WBT Capacity (veh/h) 338 1125 HCM Lane V/C Ratio 0.029 - HCM Control Delay (s/veh) 16 0 HCM Lane LOS C A HCM 95th %tile Q(veh) 0.1 0 2025 Existing AM Peak Synchro 12 Report Erkisson Engineering Associates, Ltd. Page 2 HCM 7th TWSC 2: 127th St & Walter St 08/13/2025 Intersection Int Delay, s/veh 3.4 Movement EBL EBT WBT WBR SBL SBR Lane Configurations t T Y Traffic Vol, veh/h 48 823 537 33 29 81 Future Vol, veh/h 48 823 537 33 29 81 Conflicting Peds, #/hr 0 0 0 0 0 0 Sign Control Free Free Free Free Stop Stop RT Channelized - None None - None Storage Length 120 - 0 Veh in Median Storage, # - 0 0 0 Grade, % - 0 0 0 Peak Hour Factor 84 84 84 84 84 84 Heavy Vehicles, % 2 2 2 2 2 2 Mvmt Flow 57 980 639 39 35 96 Major/Minor Majorl Major2 Minor2 Conflicting Flow All 679 0 0 1753 659 Stage 1 - - - 659 - Stage 2 - 1094 - Critical Hdwy 4.12 - - 6.42 6.22 Critical Hdwy Stg 1 - 5.42 - Critical Hdwy Stg 2 - - - 5,42 - Follow-up Hdwy 2.218 3.518 3.318 Pot Cap-1 Maneuver 913 94 464 Stage 1 - 515 - Stage 2 - 321 - Platoon blocked, % Mov Cap-1 Maneuver 913 88 464 Mov Cap-2 Maneuver - 88 - Stage 1 - - 482 Stage 2 321 Approach EB WB SB HCM Control Delay, s/v 0.51 0 43.59 HCM LOS E Minor Lane/Major Mvmt EBL EBT WBT WBR SBLn1 Capacity (veh/h) 913 218 HCM Lane V/C Ratio 0.063 0.6 HCM Control Delay (s/veh) 9.2 - 43.6 HCM Lane LOS A E HCM 95th %tile Q(veh) 0.2 - 3.4 2025 Existing PM Peak Synchro 12 Report Erkisson Engineering Associates, Ltd. Page 1 HCM 7th TWSC 7: Emerald Dr & 127th St 08/13/2025 Intersection Int Delay, s/veh Movement 0.5 EBT EBR WBL WBT NBL NBR Lane Configurations T. '� t Y Traffic Vol, veh/h 840 12 3 560 10 6 Future Vol, veh/h 840 12 3 560 10 6 Conflicting Peds, #/hr 0 0 0 0 0 0 Sign Control Free Free Free Free Stop Stop RT Channelized None - None - None Storage Length 135 - 0 Veh in Median Storage, # 0 - 0 0 Grade, % 0 - 0 0 Peak Hour Factor 81 81 81 81 81 81 Heavy Vehicles, % 2 2 2 2 2 2 Mvmt Flow 1037 15 4 691 12 7 Major/Minor Majorl Major2 Minorl Conflicting Flow All 0 0 1052 0 1743 1044 Stage 1 - - - - 1044 - Stage 2 - 699 - Critical Hdwy - 4.12 6.42 6.22 Critical Hdwy Stg 1 - 5.42 - Critical Hdwy Stg 2 - - 5.42 - Follow-up Hdwy 2.218 3.518 3.318 Pot Cap-1 Maneuver 662 95 278 Stage 1 - 339 - Stage 2 - 493 - Platoon blocked, % Mov Cap-1 Maneuver 662 95 278 Mov Cap-2 Maneuver - 95 - Stage 1 339 Stage 2 490 Approach EB WB NB HCM Control Delay, s/v 0 0.06 38.89 HCM LOS E Minor Lane/Major Mvmt NBLn1 EBT EBR WBL WBT Capacity (veh/h) 126 662 HCM Lane V/C Ratio 0.157 0.006 HCM Control Delay (s/veh) 38.9 10.5 HCM Lane LOS E B HCM 95th °/stile Q(veh) 0.5 0 2025 Existing PM Peak Synchro 12 Report Erkisson Engineering Associates, Ltd. Page 2 HCM 7th TWSC 2: 127th St & Walter St 08/18/2025 Intersection Int Delay, s/veh 1.5 Movement EBL EBT WBT WBR SBL SBR Lane Configurations t T Y Traffic Vol, veh/h 30 357 495 19 21 40 Future Vol, veh/h 30 357 495 19 21 40 Conflicting Peds, #/hr 0 0 0 0 0 0 Sign Control Free Free Free Free Stop Stop RT Channelized - None None - None Storage Length 120 - 0 Veh in Median Storage, # - 0 0 0 Grade, % - 0 0 0 Peak Hour Factor 80 80 80 80 80 80 Heavy Vehicles, % 2 2 2 2 2 2 Mvmt Flow 38 446 619 24 26 50 Major/Minor Major1 Major2 Minor2 Conflicting Flow All 643 0 0 1152 631 Stage 1 - - - 631 - Stage 2 - 521 - Critical Hdwy 4.12 - - 6.42 6.22 Critical Hdwy Stg 1 - 5.42 - Critical Hdwy Stg 2 - - - 5.42 - Follow-up Hdwy 2.218 3.518 3.318 Pot Cap-1 Maneuver 942 219 481 Stage 1 - 530 - Stage 2 - 596 - Platoon blocked, % Mov Cap-1 Maneuver 942 210 481 Mov Cap-2 Maneuver - 210 - Stage 1 509 Stage 2 596 Approach EB WB SB HCM Control Delay, s/v 0.7 0 18.99 HCM LOS C Minor Lane/Major Mvmt EBL EBT WBT WBR SBLn1 Capacity (veh/h) 942 333 HCM Lane V/C Ratio 0.04 0.229 HCM Control Delay (s/veh) 9 19 HCM Lane LOS A C HCM 95th %tile Q(veh) 0.1 0.9 2031 Proposed AM Peak Synchro 12 Report Erkisson Engineering Associates, Ltd. Page 1 HCM 7th TWSC 7: Emerald Dr & 127th St 08/18/2025 Intersection Int Delay, s/veh 0.2 Movement EBT EBR WBL WBT NBL NBR Lane Configurations to f Y Traffic Vol, veh/h 372 6 1 508 6 4 Future Vol, veh/h 372 6 1 508 6 4 Conflicting Peds, #/hr 0 0 0 0 0 0 Sign Control Free Free Free Free Stop Stop RT Channelized None - None - None Storage Length 135 - 0 Veh in Median Storage, # 0 - 0 0 Grade, % 0 - 0 0 Peak Hour Factor 81 81 81 81 81 81 Heavy Vehicles, % 2 2 2 2 2 2 Mvmt Flow 459 7 1 627 7 5 Major/Minor Majorl Major2 Minorl Conflicting Flow All 0 0 467 0 1093 463 Stage 1 - - - - 463 - Stage 2 - 630 - Critical Hdwy 4.12 6.42 6.22 Critical Hdwy Stg 1 - 5.42 - Critical Hdwy Stg 2 - 5.42 - Follow-up Hdwy 2.218 3.518 3.318 Pot Cap-1 Maneuver 1095 237 599 Stage 1 - 634 - Stage 2 - 531 - Platoon blocked, % Mov Cap-1 Maneuver 1095 237 599 Mov Cap-2 Maneuver - 237 - Stage 1 634 Stage 2 530 Approach EB WB NB HCM Control Delay, s/v 0 0.02 16.99 HCM LOS C Minor Lane/Maior Mvmt NBLn1 EBT EBR WBL WBT Capacity (veh/h) 313 1095 HCM Lane V/C Ratio 0.04 0.001 HCM Control Delay (s/veh) 17 8.3 HCM Lane LOS C A HCM 95th %tile Q(veh) 0.1 0 2031 Proposed AM Peak Synchro 12 Report Erkisson Engineering Associates, Ltd. Page 2 HCM 7th TWSC 10: Walter St & North Access Dr 08/18/2025 Intersection Int Delay, s/veh Movement 0.6 WBL WBR NBT NBR SBL SBT Lane Configurations Y 1 4 Traffic Vol, veh/h 7 0 36 13 1 54 Future Vol, veh/h 7 0 36 13 1 54 Conflicting Peds, #/hr 0 0 0 0 0 0 Sign Control Stop Stop Free Free Free Free RT Channelized None None None Storage Length - Veh in Median Storage, # 0 0 0 Grade, % 0 0 0 Peak Hour Factor 92 92 92 92 92 92 Heavy Vehicles, % 2 2 2 2 2 2 Mvmt Flow 8 0 39 14 1 59 Major/Minor Minorl Majorl Major2 Conflicting Flow All 107 46 0 0 53 0 Stage 1 46 - - - - - Stage 2 61 - - Critical Hdwy 6.42 6.22 4.12 Critical Hdwy Stg 1 5.42 - - Critical Hdwy Stg 2 5.42 - - Follow-up Hdwy 3.518 3.318 2.218 Pot Cap-1 Maneuver 890 1023 1552 Stage 1 976 - - Stage 2 962 - - Platoon blocked, % Mov Cap-1 Maneuver 890 1023 1552 - Mov Cap-2 Maneuver 890 - - Stage 1 976 Stage 2 961 Approach WB NB SB HCM Control Delay, s/v 9.08 0 0.13 HCM LOS A Minor Lane/Major Mvmt NBT NBRWBLnl SBL SBT Capacity (veh/h) - 890 33 HCM Lane V/C Ratio - 0.009 0.001 HCM Control Delay (s/veh) - 9.1 7.3 0 HCM Lane LOS - A A A HCM 95th %tile Q(veh) - 0 0 - 2031 Proposed AM Peak Synchro 12 Report Erkisson Engineering Associates, Ltd. Page 3 HCM 7th TWSC 2: 127th St & Walter St 08/13/2025 Intersection Int Delay, s/veh 6.8 Movement EBL EBT WBT WBR SBL SBIR Lane Configurations t 1 Y Traffic Vol, veh/h 51 877 573 35 37 93 Future Vol, veh/h 51 877 573 35 37 93 Conflicting Peds, #/hr 0 0 0 0 0 0 Sign Control Free Free Free Free Stop Stop RT Channelized - None None - None Storage Length 120 - 0 Veh in Median Storage, # - 0 0 0 Grade, % - 0 0 0 Peak Hour Factor 84 84 84 84 84 84 Heavy Vehicles, % 2 2 2 2 2 2 Mvmt Flow 61 1044 682 42 44 111 Major/Minor Majorl Major2 Minor2 Conflicting Flow All 724 0 0 1868 703 Stage 1 - - - 703 - Stage 2 - 1165 - Critical Hdwy 4.12 6.42 6.22 Critical Hdwy Stg 1 - 5.42 - Criticai Hdwy Stg 2 - 5.42 - Follow-up Hdwy 2.218 3.518 3.318 Pot Cap-1 Maneuver 879 80 438 Stage 1 - 491 - Stage 2 - - 297 - Platoon blocked, % Mov Cap-1 Maneuver 879 - 74 438 Mov Cap-2 Maneuver - 74 - Stage 1 457 Stage 2 297 Approach EB WB SIB HCM Control Delay, s/v 0.52 0 83.73 HCM LOS F Minor Lane/Major Mvmt EBL EBT WBT WBR SBLn1 Capacity (veh/h) 879 183 HCM Lane V/C Ratio 0.069 0.848 HCM Control Delay (s/veh) 9.4 83.7 HCM Lane LOS A F HCM 95th %tile O(veh) 0.2 6.1 2031 Proposed PM Peak Synchro 12 Report Erkisson Engineering Associates, Ltd. Page 1 HCM 7th TWSC 7: Emerald Dr & 127th St 08/13/2025 Intersection Int Delay, s/veh Movement 0.5 EBT EBR WBL WBT NBL NBR Lane Configurations 11 ' f Y Traffic Vol, veh/h 901 13 4 597 11 7 Future Vol, veh/h 901 13 4 597 11 7 Conflicting Peds, #/hr 0 0 0 0 0 0 Sign Control Free Free Free Free Stop Stop RT Channelized - None - None - None Storage Length 135 - 0 Veh in Median Storage, # 0 - 0 0 Grade, % 0 - 0 0 Peak Hour Factor 84 84 84 84 84 84 Heavy Vehicles, % 2 2 2 2 2 2 Mvmt Flow 1073 15 5 711 13 8 Major/Minor Majorl Major2 Minorl Conflicting Flow All 0 0 1088 0 1801 1080 Stage 1 - - - - 1080 - Stage 2 - 720 - Critical Hdwy 4.12 6.42 6.22 Critical Hdwy Stg 1 - 5.42 - Critical Hdwy Stg 2 - 5.42 - Follow-up Hdwy 2.218 3.518 3.318 Pot Cap-1 Maneuver - 641 88 265 Stage 1 - 326 - Stage 2 - 482 - Platoon blocked, % Mov Cap-1 Maneuver 641 87 265 Mov Cap-2 Maneuver - 87 - Stage 1 326 Stage 2 478 Approach EB WB NB HCM Control Delay, s/v 0 0.07 42.24 HCM LOS E Minor Lane/Maior Mvmt NBLn1 EBT EBR WBL WBT Capacity (veh/h) 118 641 HCM Lane V/C Ratio 0.182 0.007 HCM Control Delay (s/veh) 42.2 10.7 HCM Lane LOS E B HCM 95th %tile Q(veh) 0.6 0 2031 Proposed PM Peak Synchro 12 Report Erkisson Engineering Associates, Ltd. Page 2 HCM 7th TWSC 10: Walter St & North Access Dr 08/13/2025 Intersection Int Delay, s/veh 0.6 Movement WBL WBR NBT NBR SBL SBT Lane Configurations Y T 4 Traffic Vol, veh/h 13 1 86 0 0 117 Future Vol, veh/h 13 1 86 0 0 117 Conflicting Peds, #/hr 0 0 0 0 0 0 Sign Control Stop Stop Free Free Free Free RT Channelized None None None Storage Length - Veh in Median Storage, # 0 0 0 Grade, % 0 0 0 Peak Hour Factor 92 92 92 92 92 92 Heavy Vehicles, % 2 2 2 2 2 2 Mvmt Flow 14 1 93 0 0 127 Major/Minor Minorl Majort Major2 Conflicting Flow All 221 93 0 0 93 0 Stage 1 93 - - - - - Stage 2 127 - - Critical Hdwy 6.42 6.22 4.12 Critical Hdwy Stg 1 5.42 - - Critical Hdwy Stg 2 5.42 - - Follow-up Hdwy 3.518 3.318 2.218 Pot Cap-1 Maneuver 768 964 1501 Stage 1 930 - - Stage 2 899 - - Platoon blocked, % Mov Cap-1 Maneuver 768 964 1501 Mov Cap-2 Maneuver 768 - - Stage 1 930 Stage 2 899 Approach WB NB SB HCM Control Delay, s/v 9.71 0 0 HCM LOS A Minor Lane/Maior Mvmt NBT NBRWBLnl SBL SBT Capacity (veh/h) 779 1501 HCM Lane V/C Ratio 0.02 - HCM Control Delay (s/veh) 9.7 0 HCM Lane LOS A A HCM 95th °/stile Q(veh) 0.1 0 2031 Proposed PM Peak Synchro 12 Report Erkisson Engineering Associates, Ltd. Page 3 Exhibit G Photometric Ptans 12 C d s Z O s$ 1N3 W dO13A3U NOIS30 voi 030551 cc aoz r'1 esc�3 6Eb0911'1NOW31 G g W 133N1S HiM q 133N15 N311VM 3O 83NNO7 3N z 3s 171N1SIO NOIl]3108d 38I3 1NOW33 N H t N011t/1S 3a1d 1NOW31 i a M H ' ��oAg Ag A$ k r � � 0 LL E �o 0 ,fl vo o .. s a 11 e z e 1N3WdOl3A3a NO1530 NOi 03f1551 -Z �i OCC? a §� 6EV0911'1NOW31 Go W $ y+l� ' Z Z s 6€ - r 111111 HIM B 133N151111V, iO MUM A W o a $ e INHIS 0 N011J310Nd MI31NOIN31 ° aag L NOIIVIS Mid 1NOW31 s oci v a o P O O G O G O O O o G 0 - C o o G C O O o G 0 O G - - - - - O - O O - - -O - - - - O q q- - - O O O O n o o O O o O -q .o .Q - o o _o_o _0 0 ! 0 0 o 0 0 0 6 o 0 o o - -O - - - - .N - -. -p "Na �..o - - -O .O -N - - N N O - - - - - - .NOq0 O O O .oCi ryo O O ... 0 0 O O O O O O .O O .O .O q -q - - - q - - _o � _-N P-o - Ot7 O00 -N -o- 0 0 N 6 _o.q -m O G O G M th V N V O O .N "N .N -d' .M - m N N m O M N q G q - -ci"a .v .a --m N - - - -N - OG O -.N -7 -O O m ONO G q o o QN N NM a - N 7 m N - m -mV OO .N Qc! 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W N N N- m 6 6O O; O = o 0 0 0 0 W M [ O N < ffi �t0 < m W < V �D O N t� M N O O G G O o 6 O M N N O --� -.Q -n - "NT N O� N-d' C (A OO Q- 0 O O 0 O O O •- O O O q V N -- m "r m m r m. m mm N M O O O q O O o 0 O O 0 o o Q o 06 0 0 O O O O O G o q F a - in m r r -m r m m a a -q M c a Ln N N o 6 6 6 0 0 6 0 0 o 0 0 6 6 0 0 6 6 0 6 C3 6o U. 0 0 o o 0 o ci 0 6 0 o N V m Lq LqQ M N N M M -ih Q m m r -m -M N 5Jj O O C3 o o 0o o 6 o n n O o o o 0 0 0 o O q 6 O 6 6 6GG _ NCl OO o O O O O O O o m MN\ _ O 0 0 o _ - _N 11-11 cl t 'A-V -C -d -N - -O -O o G o0 0 o O O O O 0 0 0 0 o 6 o o 6 o 0 6 6 d O 6 o 0 6 C3 6 O O - - - .N .N .N - - - - - _ - -N - - .M - - -O -q q.O .O O O O O O O O6 6 6 6 6 6 d 6 o o o 0 n o o 6 6 6 6 ci C5 o o 0 w J = a— Exhibit H Exterior and Sign Elevations 13 cz z NOUviNgwm0a Nou3nHISNO3 %sz moi 03ns51 12 u 6EV09 SION1111 oz 'INOW31 '133HIS HiLZI q i33MiS UIIVM 30 H3NVO:) 3N Piz 4 DIKSIG NOII:)3iQ8d TdH INOVY 31 R 9 I NOUVIS 3MIJ INOW31 44 l q 9 �-�> ......... ---- ---------- ------------- --------- 0 w o. z ED q m ` j s z e z NOIIViN3wn3OU NOu3nUiSNOJ %SZ NOi 0305SI M a x 6 a O o a K 3; a 6£b09 SIONIIII '" N Z y~j gi '1NOW3l'133H1S HIM9 I33N1S N31lVM i0 HNNOJ 3N T a S gp _ tq 3 2 ! �� Fs: - 1JINISIO NOID310Nd 3NIi 1NOW3l 2 a� O s €s E;�€ 5— I NOIIVIS 3H 13 INOVY31 1 x x x x a x x x V. ,71 --�— J / \ J Cs}�; I ,�1 o: Z z O a W / i W 9 K dl Q De W Q a O xa� W L7 W AL\l I-: a, cn y r -� W 3 o C3 J J J W N M a- 9 9 NS wm dzoz � aue�s aae� w� zo aseezn+o�aaa� ��=;irW9m`r+aa� m, 9i sr z� szoviaoc z E = N011VIN3Nn3Oa NoinnHISN03 ME SCA 03nSSI A x 0 2 p r4 cc 6EV09 SIONIIII 0. 'INOW31'133US HIM T i33U-LSd3llVM JO H 3NUO:) 3N DIUI5I0NOIDII0 dd3UI31NOW31 0 , ; u I NOUVIS 3HIJ INOW31 CY 0 3 z HM 0 m 0 w z 0 -. w w w < > w TFI� It- 0 0 w X C*4 .. ....... Exhibit I Colored Renderings 14 cis ul m Cl) V Cl r o J Z O Z O Ui Q w w U) H H r W o5 F- w � w LL ~ L w r L- J Z 5O O LL w Z WK O U Jw z N U N L O o CD N w N � N O I N d Qu H U O . KLO u) oD E5 <r) Z N O O Fz U w F O rr d w u- F- Z O 5 w J W LU off V) 2 F— r- N rc-I G 0 1..1� LL W m M V O co CO r O J Z O Z O W J Q H W W U) H H r W� H W W LL ~ L W r J Z O0 LL z W Z Liu Q� O U W Z N U N a.) O N t Q O N LL L � N N 9 O CN d Q U U4 LO co co Z N O Fz U 9 W F � O ry n W LL z O LU W J N� w l i O M V O O CO r O z J Z O Z O LU W J Q F- W W H F r W06 OC w W LLU) ae LU H J Z COO LL G z W z W0 O U JW z AM _.. A.* � U N � O N_ t O i Q O a) LL N LL L L, N N L O 3 N a0 Uco 4 co n C) co Z N O z F U W H O of d W LL r z O 5 W J V z 0 J M� W LL O W Exhibit J FINDINGS. Based upon the evidence and testimony presented during the public hearing, the Lemont Village Board of Trustees finds the following: 1. The Lemont 2030 Comprehensive Plan's future land use map designates the subject site as Neighborhood Retail (NR). 2. While the proposed use is outside the expectations of the Neighborhood Retail (NR) future land use designation, the facility supports the Comprehensive Plan's objectives related to public safety, emergency response services, and community infrastructure. The LFPD Station 1 PUD sufficiently meets the standards for PUD objectives found in § 17.08.010 C. 4. The proposed fire station should improve emergency response capabilities and provide an essential public safety service to the residents and businesses of the Village of Lemont. 15