Attachment 3s - PC Staff Report 11-7-24-MND and Tech Studies — Riverside City Council, April 22, 2025

Kevin Ballesteros | Phase I Project Manager
5261 West Imperial Highway, Los Angeles, California 90045 301-854-6300 [email protected]
Professional Summary:

Mr. Ballesteros has been in the environmental industry since 2016. Mr. Ballesteros started his career in the environmental industry researching human impacts on climate change using remote sensing technologies. Currently, Mr. Ballesteros conducts historical research and works with regulatory bodies to investigate historical and current uses of properties as part of the Phase I Environmental Site Assessment. Mr. Ballesteros’s experience includes management of all stages of environmental projects including Phase I Environmental Site Assessments, Transaction Screen Assessments, and Database Reviews.

Licenses and Certifications:

OSHA 40-Hour Hazardous Waste Operations Certified, Safety Unlimited, CA #1605141167706 State of California Department of Public Health Lead-Related Construction Certificate ID#32017 Project Experience:

Phase I ESA at Montclair, California - Served as the Project Manager of a Phase I ESA for the entire 60- acre Montclair Plaza Shopping Mall, with several closed unauthorized release cases. This site included retail shops, offices, restaurants, a former automotive repair facility, and two former gasoline service stations. After extensive historical and regulatory agency research, EFI Global, Inc. was able to determine several concerns for the subject property which included: lack of removal and sampling associated with the first generation underground storage tanks of one of the former gasoline station operation, a former dry cleaners operated inside the mall, another automotive repair facility occupied the site, and lack of sampling performed on the automotive repair facility. EFI Global, Inc. was able to advise the property owner of the aforementioned concerns and that additional investigations were warranted prior to redevelopment of the site.

Phase I ESA at Vernon, California - Served as the Project Manager of a Phase I ESA for a vacant industrial property with a closed unauthorized release case issued by the City of Vernon, which was formerly part of a larger plastic bottle manufacturing operation. The former industrial facility had undergone numerous subsurface assessments and remedial cleanups dating back to 2008. Thorough historical and regulatory agency research indicated that one 10,000-gallon underground storage tank of unknown content was installed on the subject property. EFI Global, Inc. was able to advise the property buyer that the lack of documentation regarding the removal or sampling of the underground storage tanks was a concern and additional remediation work was warranted prior to redevelopment of the site.

Phase I ESA at Whittier, California - Served as the Project Manager of a Phase I ESA for a car wash and automotive repair facility, with former gasoline service station operations and a closed unauthorized release case. During initial project set up and conversations with the property owner during the site reconnaissance, it was believed that no concerns existed on the property. However, historical and regulatory agency research revealed that the property was occupied with four generations of gasoline stations. EFI Global, Inc. was able to advise the property owner that the lack of documentation @ efi global-------------
PR-2024-001656 (TM) Exhibit 8 - MND and Technical Studies

regarding the removal or sampling associated with the early generation underground storage tanks at the former gasoline stations were concerns and additional investigations was warranted at the time.

Professional Experience:

Andersen Environmental an EFI Global company, Los Angeles, CA, Environmental Specialist, 2016 – Present

University of California Los Angeles Institute of the Environmental and Sustainability, Los Angeles, CA, Research Assistant 2013 – 2015

Specialized Education:

Bachelor’s Degree in Environmental Studies, University of California Los Angeles, Los Angeles, CA, 2015

References:

Nicole Rivera - EFI Global, Inc. - 5261 West Imperial Highway, Los Angeles, CA 90045 - 310.854.6300 Matthew Rodda - EFI Global, Inc. - 5261 West Imperial Highway, Los Angeles, CA 90045 - 310.854.6300

@ efi global--============
PR-2024-001656 (TM) Exhibit 8 - MND and Technical Studies ©2018 EFI Global, Inc.

1 Raul Gaina | Project Manager, Certification
5261 West Imperial Highway, Los Angeles, California 90045 (310) 854-6300 [email protected]
Professional Summary:

Raul Gaina has been engaged in the environmental sector since 2013 with experience in environmental consulting, environmental fieldwork, environmental education, environmental remediation, and water/wastewater treatment. Mr. Gaina has worked directly with clients and regulatory bodies to investigate historical and current site use and help clients achieve compliance with federal regulations for residential and commercial properties. Mr. Gaina’s experience includes management of all stages of environmental projects including Phase I Environmental Site Assessments, Transaction Screen Assessments, and Database Reviews. In addition, Mr. Gaina has provided project oversight of various stages of site characterization and remediation projects including, soil investigation, groundwater monitoring well installation, monitoring well, and underground storage tank abandonment.

Licenses and Certifications:

Engineer in Training (EIT) , Board for Professional Engineers, Land Surveyors, and Geologists Certificate No. 479387
OSHA 40-Hour Hazardous Waste Operations and Emergency Response Certified, Safety Unlimited, California, Certificate No. 1703145194159
Project Experience:

JP Morgan Chase Bank, N.A., Dallas, Tx
Phase I Environmental Site Assessment - Henderson, Nevada Served as the Project Manager of a Phase I ESA for a commercial unit located within larger industrial park. During initial project set up, only the existing subject property address was identified and researched, which did not reveal any items of concern. However, during our site reconnaissance, a groundwater monitoring well was observed within the parking lot area of the subject property, which is indicative of a potential impacted resources at the subject property.

Additional historical aerial photograph research revealed that prior to the current development, the subject property and immediately surrounding areas were formerly part of a larger industrial complex with multiple building and above ground storage tanks. After consulting with multiple regulatory agencies, including the Nevada Department of Environmental Protection (NDEP), it was determined that the historical facility was a former manufacturer of ammonium perchlorate – an oxidizer used as a component of solid propellant for rocket fuel. An explosion which destroyed the facility in 1988 resulted in an unauthorized release of perchlorate which impacted groundwater at the subject property and immediately surrounding areas. EFI Global reviewed multiple records, incident reports, correspondence, newspaper clippings, and groundwater monitoring reports on file at the NDEP, Southern Nevada Health Department (SNHD), and Clark County Department of Air Quality (CCDAQ). Based on information obtained from the most recent groundwater monitoring report, EFI Global determined that the concentrations of perchlorate at the subject property were above regulatory standards, which @ efi global-------------
PR-2024-001656 (TM) Exhibit 8 - MND and Technical Studies ©2018 EFI Global, Inc.

2 constituted a Recognized Environmental Condition. However, based on the identification of the responsible party, ongoing remediation activities under the jurisdiction of the NDEP, and low potential for threat to human health due to confinement of the contamination to the groundwater, no further environmental investigation was recommended, and the client was solely advised to continue to adhere to NDEP recommendations and guidance until regulatory closure is obtained.

Pacific Premier Bank, Irvine, California
Phase I Environmental Site Assessment - Westminster, California Served as the Project Manager for Phase I ESAs for two multi-tenant auto repair facilities. Th e facilities were both built in the 1960s and have been used for machine shop, spray painting, and auto repair purposes through the present. No records indicating tenants names, property usage, and/or hazardous materials records were available for the properties for the period 1960-1990. Based on the potential use of chlorinated solvents / petroleum hydrocarbons, and storage/handling of hazardous materials, the historical industrial shop, machine shop, and auto repair operations during a period of less stringent regulatory oversight (1965-1990).

Additionally, EFI Global determined that an unauthorized release of petroleum hydrocarbons was reported at an adjoining property which bounded both sites. Upon review of the regulatory agency records, it was determined that the contamination on the adjoining site was concentrated in the vicinity of only one of the subject properties and had the potential of only impacting this site. By going above and beyond, review multiple groundwater, sampling, and remediation reports for adjoining properties, EFI Global was able to advise the client of the need to assess the potential impact from this adjoining site to only one of the subject properties instead of both.

Professional Experience:

EFI Global, Inc., Phase I Project Manager, 2017 – present Smith-Emery GeoServices, Phase I and Phase II Project Manager, 2015 – 2017 Smith-Emery GeoServices, Senior Environmental Specialist, 2014 – 2015 Smith-Emery GeoServices, Environmental Specialist, 2013 – 2014

Education:

Master of Science, Civil and Environmental Engineering, University of California, Los Angeles, California, 2013
Bachelor of Science, Environmental Science, with a Minor in Environmental Engineering, University of California, Los Angeles, California, 2012

References:

Nicole Rivera - EFI Global, Inc. - 5261 West Imperial Highway, Los Angeles, CA 90045 – 310.854.6300
Matthew Rodda - EFI Global, Inc. - 5261 West Imperial Highway, Los Angeles, CA 90045 – 310.854.6300

@ efi global--============
PR-2024-001656 (TM) Exhibit 8 - MND and Technical Studies

Brian R. Brennan | Senior Project Manager
5909 Sea Lion Drive, Unit H, Carlsbad, California 92010 760-473-5695 [email protected]
Professional Summary:

Mr. Brennan has over 20 years of environmental consulting experience. Mr. Brennan qualifies as an Environmental Professional with experience that includes preparing, reviewing and managing all aspects of Phase I and II Environmental Site Assessment (ESA) in commercial real estate transactions and large-scale residential developments following ASTM E 1527 -13 and 40 CFR Part 312 (AAI) guidelines. Mr. Brennan has proven skills in planning, managing and executing all phases of small to large scale projects involving soil, soil gas and groundwater investigation and remediation at sites impacted by petroleum hydrocarbons, heavy metals, pesticides, and chlorinated solvents. Mr. Brennan’s technical skills include developing, maintaining and meeting project scope and financial responsibilities; coordinating and managing professional staff and subcontractors; reviewing and evaluating environmental data and risk assessment; preparing technical writing documents; and communicating to senior and junior staff, regulatory agencies and clients. Mr. Brennan is an experienced project manager with the ability to oversee professional staff in multiple disciplines and geographic locations; tracking and maintaining schedules, budgets and deliverables; and maintaining current clients , while conducting future business development and marketing. Areas of expertise include:

Phase I/II Environmental Site Assessment

Environmental Site Assessment and Mitigation

Project Management

Data Evaluation

Third Party Review

Licenses and Certifications:

OSHA 40-Hour Hazardous Waste Operations Certified
OSHA 8-Hour HAWOPER Annual Refresher
Environmental Professional, per the CFR Title 40, Chapter I, Subchapter J, Part 312, Subpart C, Section 312.21
California Registered Environmental Assessor II (REA-II) No. 07920

@ efi global--============
PR-2024-001656 (TM) Exhibit 8 - MND and Technical Studies

Project Experience:

County of Riverside, Economic Development Agency. Former Riverside General Hospital, Riverside, CA. Leaking Underground Storage Tank (LUST) Site Investigation, Remediation and Regulatory Agency (Riverside County DEH) Case Closure.

Gannett Fleming. Former Exide Technologies Facility , City of Industry, CA. Lead -impacted Soil Investigation and Mitigation, and Regulatory Agency (LA County Fire Department) Case Closure.

Standard Pacific Homes. Harmony Gove Village , Master-Planned Community, Escondido, CA.

Phase I ESA, Site Investigation, Environmental Monitoring and Sampling, and Regulatory Agency (County of San Diego DEH) Case Closure Associated with Master Planned Community.

KB Home Coastal Inc. Magnolia Trails, Single-family Residential Development, El Cajon, CA. Phase I ESA, Pesticide -Soil Investigation, Remedial Excavation, and Regulatory Agency (County of San Diego DEH) Case Closure.

Dynamic Development Corporation. Proposed Dollar General Store, Imperial, CA. Historical Phase I/II ESA review; LUST Site Investigation and Remediation; and Regulatory Agency (Colorado River Basin Water Quality Control Board) Case Closure.

Heslin Holdings, LLC. Former Mr. Best Cleaners, Oceanside, CA. Former Dry Cleaner Release Site; Chlorinated Solvent Investigation and Mitigation ; and Regulatory Agency (County of San Diego) Oversight (closure in-progress).

California Bank & Trust Facility . Commercial Bank Property, Escondido, CA. Site Assessment, Mitigation and Environmental Monitoring, during Redevelopment; and Regulatory Agency (County of San Diego DEH) Case Closure.

Standard Pacific Homes /CalAtlantic Homes/Lenna r. Multiple Locations, Southern California.

Provided numerous Phase I and II ESA technical services, review and evaluation of previous consultant environmental site assessment and mitigation, soil remediation, and environmental field services related to various Southern California property acquisitions.

KB Home Coastal, Inc. Multiple Locations, Southern California. Provided numerous Phase I and II ESA technical services, review and evaluation of previous consultant environmental site assessment and mitigation, soil remediation, and environmental field services related to various Southern California property acquisitions.

County of Riverside, Economic Development Agency. Multiple Locations, Riverside County.

Court Qualifications/ Depositions:

Superior Court of California, County of Riverside / County of Riverside v. Alvin C. Assink, et al., Case No. RIC 512629, July 16, 2012.

@ efi global--=========
PR-2024-001656 (TM) Exhibit 8 - MND and Technical Studies

Superior Court of California, County of San Diego / Shirey Falls, LP v. Guadalupe and Evangeline Hernandez, Case No. 37-2014-00006580, October 27, 2015.

Professional Experience:

EFI Global, Environmental Senior Project Manager, 2019-Present

EFI Global, Environmental Field Professional, 2018-2019

Environmental Professional/Independent Consultant/Contrator, 2011-2018

EEI, Director, Environmental Services/Senior Project Manager, 2014-2019

Terraphase Environmental Engineering, Senior Project Manager, 2014

EEI, Environmental Senior Project Manager, 2008-2014

EEI, Environmental Project Manager, 2004-2008

EEI, Environmental Staff Scientist, 2000-2004

United States Department of Interior, Yellowstone National Park, Visitor Use Assistance/Wildland Firefighter/GIS Analyst, 2001

City of San Diego, Parks and Recreation, GIS and Environmental Services, Intern, 1999

Specialized Education:

Geographic Information Systems (GIS), ArcGIS , San Diego State University, 2000

The Groundwater Pollution and Hydrology Course, Princeton Groundwater, Inc., 2003

The Remediation Class, Princeton Groundwater, Inc., 2005

Natural Attenuation, Risk Assessment, and Risk -Based Corrective Action (RBCA) Through Applied Groundwater Modeling, National Groundwater Association (NGWA), 2007

California Environmental Quality Act, University of California, San Diego, 2008

Education:

Master of Science, Environmental Engineering, National University, San Diego, California, 2008

Bachelor of Arts, Geography and Environmental Analysis , San Diego State University, San Diego, California, 2000

@ efi global--=========
PR-2024-001656 (TM) Exhibit 8 - MND and Technical Studies Hydrology Report
for

TR 38921
Loc
ated in the City of Riverside
County of Riverside
APN: 136-220-016

Prepared For:

3090 Pullman Street
Costa Mesa, CA 92626

Prepared by:

6879 Airport Drive
Riverside, CA 92504
Tel (951) 688-0241
Fax (951) 688-0599

Job No. 10574
February 26, 2024

ad kan

ENGINEERS
PR-2024-001656 (TM) Exhibit 8 - MND and Technical Studies

Table of Contents

1. Purpose ...............................................................................................................................................................1

2. Project Description .............................................................................................................................................1 A. Vicinity Map ....................................................................................................................................................1

3. Pre-Development Hydrology ..............................................................................................................................1

4. Post-Development Hydrology ............................................................................................................................1

5. Method of Analysis .............................................................................................................................................2

6. Conclusion ..........................................................................................................................................................2 Pre-Development Unit Hydrograph ...........................................................................................................................3 Post-Development Unit Hydrograph ..........................................................................................................................4 Riverside County Plates ..............................................................................................................................................5

ad ka n CIVIL ENGINEERING •SURVEYING •PLANNING
=====================:= 6879 AIRPORT DRIVE, RIVERSIDE, CA 92504 Tel: 951.688.0241 • Fax: 951.688.0599 ENGINEERS
www .adkan .com
PR-2024-001656 (TM) Exhibit 8 - MND and Technical Studies

1 1. Purpose
The purpose of this study is to substantiate the hydrology design of Tract 38921 for the purposes of Entitlement Ap
proval. Adkan Engineers has prepared this study to ensure that adequate size and proper operation of drainage facilities are incorporated into the Post-Development project site.

2. Project Description
T
ract 38921 is located in the City of Riverside at the northeast corner of Victoria Avenue and La Sierra Avenue.

Th
e planned development will consist of 49 single family residential lots and 2 open space lots on 7.9+/- acres.

The site will treat the 2 year 24 hour storm event through the use of an infiltration basin with an additional gravel layer beneath it. Since site flows are tributary to the Arizona Channel, all other storm events (5, 10 & 100 year) are not required to be analyzed.

A. Vicinity Map

3. Pre-Development Hydrology
T
he site is currently a functioning orange grove and there are no existing storm drain facilities on site. Onsite ru
noff sheet flows to the south west corner of Millsweet Place and Victoria Ave to an existing drop inlet structure that feeds site flows to City SD tributary to the Arizona Channel.

4. Post-Development Hydrology
Onsite flows are being directed towards the north east corner via a series of gutters throughout the project site.

Su
rface flows in these proposed gutters will be captured via drop inlets and conveyed via an onsite storm drain adkan CIVIL ENGINEERING SURVEYING •PLANNING

ENGINEERS
THOMAS BROS. MAP P6 144 6RID 6-B

VICINITY' MAP
SEC. 24 T.BS. R.6W
PR-2024-001656 (TM) Exhibit 8 - MND and Technical Studies

2 system to an infiltration basin located in the north east corner of the site. The infiltration basin will have an additional gravel layer beneath to mitigate the 2 year 24 hour storm flows.

5. Method of Analysis
The site hydrology was based upon Riverside County Flood Control and Water Conversation District Hydrology Man
ual, from which pertinent soil and rainfall information was obtained.

Storm flows were determined by the “RATIONAL METHOD HYDROLOGY COMPUTER PROGRAM”, Riverside County Flood Control & Water Conservation District 1978 Hydrology Manual, produced by Bondamin Engineering.

The site was also analyzed by the “SYNTHETIC UNIT HYDROLOGY METHOD COMPUTER PROGRAM”, Riverside County Flood Control & Water Conservation District 1978 Hydrology Manual, produced by Bondamin Engineering.

6. Conclusion
The hydrologic calculations provided herein substantiate the design of the Post-Development project and indicate th
e following:
• The Post-Development facilities demonstrate the ability to limit flow discharge from the project site to no greater than 110% of the pre-development 2-year peak flow.

Since site flows are tributary to the Arizona Channel, no other storm events need to be mitigated/analyzed.

Therefore, it is our conclusion this project does not negatively impact the local community or watershed goals.

adkan CIVIL ENGINEERING SURVEYING •PLANNING

ENGINEERS
Basin Storage Volume Calculations
Infiltration Basin Bottom Area (sf) 3674
Basin Top Area (sf) 4899
Depth of Basin (ft) 2.5
Open Basin Volume Provided (cf) 10716
Rock Storage depth (ft) 4.6
Rock Storage Volume (40% void) (cf) 6755
Total Flood Volume Stored 17472
Ex. 2-yr 24-hr Storm Volume (cf) 8233
Prop. 2-yr 24-hr Storm Volume (cf) 26528
Allowable 2-yr 24-hr Storm Volume
(mitigated to 110% of existing) (cf) 9056
Prop. 2-yr 24-hr Storm Volume (cf) 26528
Total Flood Volume Stored 17472
Remaining Storm Volume 9056
PR-2024-001656 (TM) Exhibit 8 - MND and Technical Studies

3 Section 1
Pre-Development Unit Hydrograph

adkan CIVIL ENGINEERING• SURVEYING• PIANNING

ENGINEERS
PR-2024-001656 (TM) Exhibit 8 - MND and Technical Studies

SSSSSSSSSSSSSSSSSSS
PR-2024-001656 (TM) Exhibit 8 - MND and Technical Studies 2 814
1 835
rE \ -- ---=--= -', --=--=-------=---=---=-------- --- -- -----w------+-+-------m-------+----------
0 ..
0 '
. I \\I
0 19 ·-.
t9
0 ' ',
' .:g __ --__

IN THE COMMUNITY OF WINCHESTER, COUNTY OF RIVERSIDE, STATE OF CALIFORNIA

PRE DEVELOPMENT UNIT HYDROGRAPH
- -------=------------- - ----.....,__--==---
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0 40 120
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20 80
SCALE: 1" = 40
160
THOMAS BROS. MAP PG 744 GRID G-3

VICINITY UAP
SEC. 24 T.3S. R.6W
a"ilkr1■1

ENGINEERS
Civil Engineering • Surveying-Plannin
6879 Airport Drive, Riverside, CA 92504
Tel:(951) 688-0241 • Fax:(951) 688-0599
PR-2024-001656 (TM) Exhibit 8 - MND and Technical Studies EX2YR24HR Page 1 of 9
U n i t H y d r o g r a p h A n a l y s i s
Co
pyright (c) CIVILCADD/CIVILDESIGN, 1989 - 2008, Version 8.1 Study date 02/22/24 File: EX2YR242.out
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ ------------------------------------------------------------------------ Riverside County Synthetic Unit Hydrology Method
RCFC & WCD Manual date - April 1978
Program License Serial Number 5006
--------------------------------------------------------------------- English (in-lb) Input Units Used
English Rainfall Data (Inches) Input Values Used
English Units used in output format
--------------------------------------------------------------------- -------------------------------------------------------------------- Drainage Area = 7.00(Ac.) = 0.011 Sq. Mi.

Drainage Area for Depth-Area Areal Adjustment = 7.00(Ac.) = 0.011 Sq. Mi.

Length along longest watercourse = 596.00(Ft.)
Length along longest watercourse measured to centroid = 300.00(Ft.) Length along longest watercourse = 0.113 Mi.

Length along longest watercourse measured to centroid = 0.057 Mi.

Difference in elevation = 26.00(Ft.)
Slope along watercourse = 230.3356 Ft./Mi.

Average Manning's 'N' = 0.030
Lag time = 0.038 Hr.

Lag time = 2.26 Min.
25% of lag time = 0.56 Min.
40% of lag time = 0.90 Min.

Unit time = 5.00 Min.

Duration of storm = 24 Hour(s)
User Entered Base Flow = 0.00(CFS)
2 YEAR Area rainfall data:

Area(Ac.)[1] Rainfall(In)[2] Weighting[1*2]

7.00 1.80 12.60
100 YEAR Area rainfall data:

Area(Ac.)[1] Rainfall(In)[2] Weighting[1*2]

7.00 6.00 42.00
STORM EVENT (YEAR) = 2.00
Area Averaged 2-Year Rainfall = 1.800(In)
Area Averaged 100-Year Rainfall = 6.000(In)
Point rain (area averaged) = 1.800(In)
Areal adjustment factor = 100.00 %
Adjusted average point rain = 1.800(In)
Sub-Area Data:

Area(Ac.) Runoff Index Impervious %

7.000 72.00 0.100
Total Area Entered = 7.00(Ac.)
RI RI Infil. Rate Impervious Adj. Infil. Rate Area% F AMC2 AMC-1 (In/Hr) (Dec.%) (In/Hr) (Dec.) (In/Hr)

72.0 53.4 0.537 0.100 0.489 1.000 0.489 Sum (F) = 0.489
Area averaged mean soil loss (F) (In/Hr) = 0.489
Minimum soil loss rate ((In/Hr)) = 0.244
(for 24 hour storm duration)
Soil low loss rate (decimal) = 0.820
--------------------------------------------------------------------- U n i t H y d r o g r a p h
VALLEY S-Curve
-------------------------------------------------------------------- Unit Hydrograph Data
--------------------------------------------------------------------- Unit time period Time % of lag Distribution Unit Hydrograph (hrs) Graph % (CFS) PR-2024-001656 (TM) Exhibit 8 - MND and Technical Studies EX2YR24HR Page 2 of 9
---------------------------------------------------------------------

1 0.083 221.634 46.905 3.309 2 0.167 443.269 41.886 2.955 3 0.250 664.903 7.981 0.563 4 0.333 886.537 3.228 0.228 Sum = 100.000 Sum= 7.055
----------------------------------------------------------------------- The following loss rate calculations reflect use of the minimum calculated loss rate subtracted from the Storm Rain to produce the maximum Effective Rain value Unit Time Pattern Storm Rain Loss rate(In./Hr) Effective (Hr.) Percent (In/Hr) Max | Low (In/Hr) 1 0.08 0.07 0.014 ( 0.867) 0.012 0.003 2 0.17 0.07 0.014 ( 0.863) 0.012 0.003 3 0.25 0.07 0.014 ( 0.860) 0.012 0.003 4 0.33 0.10 0.022 ( 0.857) 0.018 0.004 5 0.42 0.10 0.022 ( 0.853) 0.018 0.004 6 0.50 0.10 0.022 ( 0.850) 0.018 0.004 7 0.58 0.10 0.022 ( 0.847) 0.018 0.004 8 0.67 0.10 0.022 ( 0.843) 0.018 0.004 9 0.75 0.10 0.022 ( 0.840) 0.018 0.004 10 0.83 0.13 0.029 ( 0.837) 0.024 0.005 11 0.92 0.13 0.029 ( 0.834) 0.024 0.005 12 1.00 0.13 0.029 ( 0.830) 0.024 0.005 13 1.08 0.10 0.022 ( 0.827) 0.018 0.004 14 1.17 0.10 0.022 ( 0.824) 0.018 0.004 15 1.25 0.10 0.022 ( 0.820) 0.018 0.004 16 1.33 0.10 0.022 ( 0.817) 0.018 0.004 17 1.42 0.10 0.022 ( 0.814) 0.018 0.004 18 1.50 0.10 0.022 ( 0.811) 0.018 0.004 19 1.58 0.10 0.022 ( 0.807) 0.018 0.004 20 1.67 0.10 0.022 ( 0.804) 0.018 0.004 21 1.75 0.10 0.022 ( 0.801) 0.018 0.004 22 1.83 0.13 0.029 ( 0.798) 0.024 0.005 23 1.92 0.13 0.029 ( 0.795) 0.024 0.005 24 2.00 0.13 0.029 ( 0.791) 0.024 0.005 25 2.08 0.13 0.029 ( 0.788) 0.024 0.005 26 2.17 0.13 0.029 ( 0.785) 0.024 0.005 27 2.25 0.13 0.029 ( 0.782) 0.024 0.005 28 2.33 0.13 0.029 ( 0.779) 0.024 0.005 29 2.42 0.13 0.029 ( 0.775) 0.024 0.005 30 2.50 0.13 0.029 ( 0.772) 0.024 0.005 31 2.58 0.17 0.036 ( 0.769) 0.030 0.006 32 2.67 0.17 0.036 ( 0.766) 0.030 0.006 33 2.75 0.17 0.036 ( 0.763) 0.030 0.006 34 2.83 0.17 0.036 ( 0.760) 0.030 0.006 35 2.92 0.17 0.036 ( 0.756) 0.030 0.006 36 3.00 0.17 0.036 ( 0.753) 0.030 0.006 37 3.08 0.17 0.036 ( 0.750) 0.030 0.006 38 3.17 0.17 0.036 ( 0.747) 0.030 0.006 39 3.25 0.17 0.036 ( 0.744) 0.030 0.006 40 3.33 0.17 0.036 ( 0.741) 0.030 0.006 41 3.42 0.17 0.036 ( 0.738) 0.030 0.006 42 3.50 0.17 0.036 ( 0.735) 0.030 0.006 43 3.58 0.17 0.036 ( 0.732) 0.030 0.006 44 3.67 0.17 0.036 ( 0.729) 0.030 0.006 45 3.75 0.17 0.036 ( 0.726) 0.030 0.006 46 3.83 0.20 0.043 ( 0.722) 0.035 0.008 47 3.92 0.20 0.043 ( 0.719) 0.035 0.008 48 4.00 0.20 0.043 ( 0.716) 0.035 0.008 49 4.08 0.20 0.043 ( 0.713) 0.035 0.008 50 4.17 0.20 0.043 ( 0.710) 0.035 0.008 51 4.25 0.20 0.043 ( 0.707) 0.035 0.008 52 4.33 0.23 0.050 ( 0.704) 0.041 0.009 53 4.42 0.23 0.050 ( 0.701) 0.041 0.009 54 4.50 0.23 0.050 ( 0.698) 0.041 0.009 55 4.58 0.23 0.050 ( 0.695) 0.041 0.009 56 4.67 0.23 0.050 ( 0.692) 0.041 0.009 57 4.75 0.23 0.050 ( 0.689) 0.041 0.009 58 4.83 0.27 0.058 ( 0.686) 0.047 0.010 59 4.92 0.27 0.058 ( 0.683) 0.047 0.010 60 5.00 0.27 0.058 ( 0.680) 0.047 0.010 61 5.08 0.20 0.043 ( 0.677) 0.035 0.008 62 5.17 0.20 0.043 ( 0.674) 0.035 0.008 63 5.25 0.20 0.043 ( 0.672) 0.035 0.008 64 5.33 0.23 0.050 ( 0.669) 0.041 0.009 65 5.42 0.23 0.050 ( 0.666) 0.041 0.009 66 5.50 0.23 0.050 ( 0.663) 0.041 0.009 67 5.58 0.27 0.058 ( 0.660) 0.047 0.010 68 5.67 0.27 0.058 ( 0.657) 0.047 0.010 69 5.75 0.27 0.058 ( 0.654) 0.047 0.010 70 5.83 0.27 0.058 ( 0.651) 0.047 0.010 71 5.92 0.27 0.058 ( 0.648) 0.047 0.010 72 6.00 0.27 0.058 ( 0.645) 0.047 0.010 PR-2024-001656 (TM) Exhibit 8 - MND and Technical Studies EX2YR24HR Page 3 of 9
73 6.08 0.30 0.065 ( 0.643) 0.053 0.012

74 6.17 0.30 0.065 ( 0.640) 0.053 0.012 75 6.25 0.30 0.065 ( 0.637) 0.053 0.012 76 6.33 0.30 0.065 ( 0.634) 0.053 0.012 77 6.42 0.30 0.065 ( 0.631) 0.053 0.012 78 6.50 0.30 0.065 ( 0.628) 0.053 0.012 79 6.58 0.33 0.072 ( 0.626) 0.059 0.013 80 6.67 0.33 0.072 ( 0.623) 0.059 0.013 81 6.75 0.33 0.072 ( 0.620) 0.059 0.013 82 6.83 0.33 0.072 ( 0.617) 0.059 0.013 83 6.92 0.33 0.072 ( 0.614) 0.059 0.013 84 7.00 0.33 0.072 ( 0.612) 0.059 0.013 85 7.08 0.33 0.072 ( 0.609) 0.059 0.013 86 7.17 0.33 0.072 ( 0.606) 0.059 0.013 87 7.25 0.33 0.072 ( 0.603) 0.059 0.013 88 7.33 0.37 0.079 ( 0.600) 0.065 0.014 89 7.42 0.37 0.079 ( 0.598) 0.065 0.014 90 7.50 0.37 0.079 ( 0.595) 0.065 0.014 91 7.58 0.40 0.086 ( 0.592) 0.071 0.016 92 7.67 0.40 0.086 ( 0.589) 0.071 0.016 93 7.75 0.40 0.086 ( 0.587) 0.071 0.016 94 7.83 0.43 0.094 ( 0.584) 0.077 0.017 95 7.92 0.43 0.094 ( 0.581) 0.077 0.017 96 8.00 0.43 0.094 ( 0.579) 0.077 0.017 97 8.08 0.50 0.108 ( 0.576) 0.089 0.019 98 8.17 0.50 0.108 ( 0.573) 0.089 0.019 99 8.25 0.50 0.108 ( 0.571) 0.089 0.019 100 8.33 0.50 0.108 ( 0.568) 0.089 0.019 101 8.42 0.50 0.108 ( 0.565) 0.089 0.019 102 8.50 0.50 0.108 ( 0.563) 0.089 0.019 103 8.58 0.53 0.115 ( 0.560) 0.094 0.021 104 8.67 0.53 0.115 ( 0.557) 0.094 0.021 105 8.75 0.53 0.115 ( 0.555) 0.094 0.021 106 8.83 0.57 0.122 ( 0.552) 0.100 0.022 107 8.92 0.57 0.122 ( 0.550) 0.100 0.022 108 9.00 0.57 0.122 ( 0.547) 0.100 0.022 109 9.08 0.63 0.137 ( 0.544) 0.112 0.025 110 9.17 0.63 0.137 ( 0.542) 0.112 0.025 111 9.25 0.63 0.137 ( 0.539) 0.112 0.025 112 9.33 0.67 0.144 ( 0.537) 0.118 0.026 113 9.42 0.67 0.144 ( 0.534) 0.118 0.026 114 9.50 0.67 0.144 ( 0.531) 0.118 0.026 115 9.58 0.70 0.151 ( 0.529) 0.124 0.027 116 9.67 0.70 0.151 ( 0.526) 0.124 0.027 117 9.75 0.70 0.151 ( 0.524) 0.124 0.027 118 9.83 0.73 0.158 ( 0.521) 0.130 0.029 119 9.92 0.73 0.158 ( 0.519) 0.130 0.029 120 10.00 0.73 0.158 ( 0.516) 0.130 0.029 121 10.08 0.50 0.108 ( 0.514) 0.089 0.019 122 10.17 0.50 0.108 ( 0.511) 0.089 0.019 123 10.25 0.50 0.108 ( 0.509) 0.089 0.019 124 10.33 0.50 0.108 ( 0.506) 0.089 0.019 125 10.42 0.50 0.108 ( 0.504) 0.089 0.019 126 10.50 0.50 0.108 ( 0.501) 0.089 0.019 127 10.58 0.67 0.144 ( 0.499) 0.118 0.026 128 10.67 0.67 0.144 ( 0.497) 0.118 0.026 129 10.75 0.67 0.144 ( 0.494) 0.118 0.026 130 10.83 0.67 0.144 ( 0.492) 0.118 0.026 131 10.92 0.67 0.144 ( 0.489) 0.118 0.026 132 11.00 0.67 0.144 ( 0.487) 0.118 0.026 133 11.08 0.63 0.137 ( 0.485) 0.112 0.025 134 11.17 0.63 0.137 ( 0.482) 0.112 0.025 135 11.25 0.63 0.137 ( 0.480) 0.112 0.025 136 11.33 0.63 0.137 ( 0.477) 0.112 0.025 137 11.42 0.63 0.137 ( 0.475) 0.112 0.025 138 11.50 0.63 0.137 ( 0.473) 0.112 0.025 139 11.58 0.57 0.122 ( 0.470) 0.100 0.022 140 11.67 0.57 0.122 ( 0.468) 0.100 0.022 141 11.75 0.57 0.122 ( 0.466) 0.100 0.022 142 11.83 0.60 0.130 ( 0.463) 0.106 0.023 143 11.92 0.60 0.130 ( 0.461) 0.106 0.023 144 12.00 0.60 0.130 ( 0.459) 0.106 0.023 145 12.08 0.83 0.180 ( 0.456) 0.148 0.032 146 12.17 0.83 0.180 ( 0.454) 0.148 0.032 147 12.25 0.83 0.180 ( 0.452) 0.148 0.032 148 12.33 0.87 0.187 ( 0.450) 0.154 0.034 149 12.42 0.87 0.187 ( 0.447) 0.154 0.034 150 12.50 0.87 0.187 ( 0.445) 0.154 0.034 151 12.58 0.93 0.202 ( 0.443) 0.165 0.036 152 12.67 0.93 0.202 ( 0.441) 0.165 0.036 153 12.75 0.93 0.202 ( 0.438) 0.165 0.036 154 12.83 0.97 0.209 ( 0.436) 0.171 0.038 155 12.92 0.97 0.209 ( 0.434) 0.171 0.038 156 13.00 0.97 0.209 ( 0.432) 0.171 0.038 157 13.08 1.13 0.245 ( 0.430) 0.201 0.044 158 13.17 1.13 0.245 ( 0.427) 0.201 0.044 PR-2024-001656 (TM) Exhibit 8 - MND and Technical Studies EX2YR24HR Page 4 of 9
159 13.25 1.13 0.245 ( 0.425) 0.201 0.044 1 60 13.33 1.13 0.245 ( 0.423) 0.201 0.044 161 13.42 1.13 0.245 ( 0.421) 0.201 0.044 162 13.50 1.13 0.245 ( 0.419) 0.201 0.044 163 13.58 0.77 0.166 ( 0.417) 0.136 0.030 164 13.67 0.77 0.166 ( 0.415) 0.136 0.030 165 13.75 0.77 0.166 ( 0.412) 0.136 0.030 166 13.83 0.77 0.166 ( 0.410) 0.136 0.030 167 13.92 0.77 0.166 ( 0.408) 0.136 0.030 168 14.00 0.77 0.166 ( 0.406) 0.136 0.030 169 14.08 0.90 0.194 ( 0.404) 0.159 0.035 170 14.17 0.90 0.194 ( 0.402) 0.159 0.035 171 14.25 0.90 0.194 ( 0.400) 0.159 0.035 172 14.33 0.87 0.187 ( 0.398) 0.154 0.034 173 14.42 0.87 0.187 ( 0.396) 0.154 0.034 174 14.50 0.87 0.187 ( 0.394) 0.154 0.034 175 14.58 0.87 0.187 ( 0.392) 0.154 0.034 176 14.67 0.87 0.187 ( 0.390) 0.154 0.034 177 14.75 0.87 0.187 ( 0.388) 0.154 0.034 178 14.83 0.83 0.180 ( 0.386) 0.148 0.032 179 14.92 0.83 0.180 ( 0.384) 0.148 0.032 180 15.00 0.83 0.180 ( 0.382) 0.148 0.032 181 15.08 0.80 0.173 ( 0.380) 0.142 0.031 182 15.17 0.80 0.173 ( 0.378) 0.142 0.031 183 15.25 0.80 0.173 ( 0.376) 0.142 0.031 184 15.33 0.77 0.166 ( 0.374) 0.136 0.030 185 15.42 0.77 0.166 ( 0.372) 0.136 0.030 186 15.50 0.77 0.166 ( 0.370) 0.136 0.030 187 15.58 0.63 0.137 ( 0.368) 0.112 0.025 188 15.67 0.63 0.137 ( 0.367) 0.112 0.025 189 15.75 0.63 0.137 ( 0.365) 0.112 0.025 190 15.83 0.63 0.137 ( 0.363) 0.112 0.025 191 15.92 0.63 0.137 ( 0.361) 0.112 0.025 192 16.00 0.63 0.137 ( 0.359) 0.112 0.025 193 16.08 0.13 0.029 ( 0.357) 0.024 0.005 194 16.17 0.13 0.029 ( 0.355) 0.024 0.005 195 16.25 0.13 0.029 ( 0.354) 0.024 0.005 196 16.33 0.13 0.029 ( 0.352) 0.024 0.005 197 16.42 0.13 0.029 ( 0.350) 0.024 0.005 198 16.50 0.13 0.029 ( 0.348) 0.024 0.005 199 16.58 0.10 0.022 ( 0.346) 0.018 0.004 200 16.67 0.10 0.022 ( 0.345) 0.018 0.004 201 16.75 0.10 0.022 ( 0.343) 0.018 0.004 202 16.83 0.10 0.022 ( 0.341) 0.018 0.004 203 16.92 0.10 0.022 ( 0.339) 0.018 0.004 204 17.00 0.10 0.022 ( 0.338) 0.018 0.004 205 17.08 0.17 0.036 ( 0.336) 0.030 0.006 206 17.17 0.17 0.036 ( 0.334) 0.030 0.006 207 17.25 0.17 0.036 ( 0.333) 0.030 0.006 208 17.33 0.17 0.036 ( 0.331) 0.030 0.006 209 17.42 0.17 0.036 ( 0.329) 0.030 0.006 210 17.50 0.17 0.036 ( 0.328) 0.030 0.006 211 17.58 0.17 0.036 ( 0.326) 0.030 0.006 212 17.67 0.17 0.036 ( 0.324) 0.030 0.006 213 17.75 0.17 0.036 ( 0.323) 0.030 0.006 214 17.83 0.13 0.029 ( 0.321) 0.024 0.005 215 17.92 0.13 0.029 ( 0.320) 0.024 0.005 216 18.00 0.13 0.029 ( 0.318) 0.024 0.005 217 18.08 0.13 0.029 ( 0.316) 0.024 0.005 218 18.17 0.13 0.029 ( 0.315) 0.024 0.005 219 18.25 0.13 0.029 ( 0.313) 0.024 0.005 220 18.33 0.13 0.029 ( 0.312) 0.024 0.005 221 18.42 0.13 0.029 ( 0.310) 0.024 0.005 222 18.50 0.13 0.029 ( 0.309) 0.024 0.005 223 18.58 0.10 0.022 ( 0.307) 0.018 0.004 224 18.67 0.10 0.022 ( 0.306) 0.018 0.004 225 18.75 0.10 0.022 ( 0.304) 0.018 0.004 226 18.83 0.07 0.014 ( 0.303) 0.012 0.003 227 18.92 0.07 0.014 ( 0.301) 0.012 0.003 228 19.00 0.07 0.014 ( 0.300) 0.012 0.003 229 19.08 0.10 0.022 ( 0.299) 0.018 0.004 230 19.17 0.10 0.022 ( 0.297) 0.018 0.004 231 19.25 0.10 0.022 ( 0.296) 0.018 0.004 232 19.33 0.13 0.029 ( 0.294) 0.024 0.005 233 19.42 0.13 0.029 ( 0.293) 0.024 0.005 234 19.50 0.13 0.029 ( 0.292) 0.024 0.005 235 19.58 0.10 0.022 ( 0.290) 0.018 0.004 236 19.67 0.10 0.022 ( 0.289) 0.018 0.004 237 19.75 0.10 0.022 ( 0.288) 0.018 0.004 238 19.83 0.07 0.014 ( 0.286) 0.012 0.003 239 19.92 0.07 0.014 ( 0.285) 0.012 0.003 240 20.00 0.07 0.014 ( 0.284) 0.012 0.003 241 20.08 0.10 0.022 ( 0.283) 0.018 0.004 242 20.17 0.10 0.022 ( 0.281) 0.018 0.004 243 20.25 0.10 0.022 ( 0.280) 0.018 0.004 244 20.33 0.10 0.022 ( 0.279) 0.018 0.004 PR-2024-001656 (TM) Exhibit 8 - MND and Technical Studies EX2YR24HR Page 5 of 9
245 20.42 0.10 0.022 ( 0.278) 0.018 0.004 2 46 20.50 0.10 0.022 ( 0.277) 0.018 0.004 247 20.58 0.10 0.022 ( 0.275) 0.018 0.004 248 20.67 0.10 0.022 ( 0.274) 0.018 0.004 249 20.75 0.10 0.022 ( 0.273) 0.018 0.004 250 20.83 0.07 0.014 ( 0.272) 0.012 0.003 251 20.92 0.07 0.014 ( 0.271) 0.012 0.003 252 21.00 0.07 0.014 ( 0.270) 0.012 0.003 253 21.08 0.10 0.022 ( 0.269) 0.018 0.004 254 21.17 0.10 0.022 ( 0.268) 0.018 0.004 255 21.25 0.10 0.022 ( 0.267) 0.018 0.004 256 21.33 0.07 0.014 ( 0.266) 0.012 0.003 257 21.42 0.07 0.014 ( 0.265) 0.012 0.003 258 21.50 0.07 0.014 ( 0.264) 0.012 0.003 259 21.58 0.10 0.022 ( 0.263) 0.018 0.004 260 21.67 0.10 0.022 ( 0.262) 0.018 0.004 261 21.75 0.10 0.022 ( 0.261) 0.018 0.004 262 21.83 0.07 0.014 ( 0.260) 0.012 0.003 263 21.92 0.07 0.014 ( 0.259) 0.012 0.003 264 22.00 0.07 0.014 ( 0.258) 0.012 0.003 265 22.08 0.10 0.022 ( 0.257) 0.018 0.004 266 22.17 0.10 0.022 ( 0.256) 0.018 0.004 267 22.25 0.10 0.022 ( 0.256) 0.018 0.004 268 22.33 0.07 0.014 ( 0.255) 0.012 0.003 269 22.42 0.07 0.014 ( 0.254) 0.012 0.003 270 22.50 0.07 0.014 ( 0.253) 0.012 0.003 271 22.58 0.07 0.014 ( 0.253) 0.012 0.003 272 22.67 0.07 0.014 ( 0.252) 0.012 0.003 273 22.75 0.07 0.014 ( 0.251) 0.012 0.003 274 22.83 0.07 0.014 ( 0.251) 0.012 0.003 275 22.92 0.07 0.014 ( 0.250) 0.012 0.003 276 23.00 0.07 0.014 ( 0.249) 0.012 0.003 277 23.08 0.07 0.014 ( 0.249) 0.012 0.003 278 23.17 0.07 0.014 ( 0.248) 0.012 0.003 279 23.25 0.07 0.014 ( 0.248) 0.012 0.003 280 23.33 0.07 0.014 ( 0.247) 0.012 0.003 281 23.42 0.07 0.014 ( 0.247) 0.012 0.003 282 23.50 0.07 0.014 ( 0.246) 0.012 0.003 283 23.58 0.07 0.014 ( 0.246) 0.012 0.003 284 23.67 0.07 0.014 ( 0.245) 0.012 0.003 285 23.75 0.07 0.014 ( 0.245) 0.012 0.003 286 23.83 0.07 0.014 ( 0.245) 0.012 0.003 287 23.92 0.07 0.014 ( 0.245) 0.012 0.003 288 24.00 0.07 0.014 ( 0.245) 0.012 0.003 (Loss Rate Not Used)
Sum = 100.0 Sum = 3.9 Flood volume = Effective rainfall 0.32(In)
times area 7.0(Ac.)/[(In)/(Ft.)] = 0.2(Ac.Ft) Total soil loss = 1.48(In)
Total soil loss = 0.861(Ac.Ft)
Total rainfall = 1.80(In)
Flood volume = 8232.7 Cubic Feet
Total soil loss = 37504.6 Cubic Feet
-------------------------------------------------------------------- Peak flow rate of this hydrograph = 0.311(CFS)
-------------------------------------------------------------------- ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 24 - H O U R S T O R M
R u n o f f H y d r o g r a p h
-------------------------------------------------------------------- Hydrograph in 5 Minute intervals ((CFS))
-------------------------------------------------------------------- Time(h+m) Volume Ac.Ft Q(CFS) 0 2.5 5.0 7.5 10.0 ----------------------------------------------------------------------- 0+ 5 0.0001 0.01 Q | | | | 0+10 0.0002 0.02 Q | | | | 0+15 0.0003 0.02 Q | | | | 0+20 0.0004 0.02 Q | | | | 0+25 0.0006 0.03 Q | | | | 0+30 0.0008 0.03 Q | | | | 0+35 0.0010 0.03 Q | | | | 0+40 0.0012 0.03 Q | | | | 0+45 0.0014 0.03 Q | | | | 0+50 0.0016 0.03 Q | | | | 0+55 0.0018 0.04 Q | | | | 1+ 0 0.0021 0.04 Q | | | | 1+ 5 0.0023 0.03 Q | | | | 1+10 0.0025 0.03 Q | | | | 1+15 0.0027 0.03 Q | | | | 1+20 0.0029 0.03 Q | | | | 1+25 0.0031 0.03 Q | | | | 1+30 0.0033 0.03 Q | | | | 1+35 0.0035 0.03 Q | | | | 1+40 0.0037 0.03 Q | | | | 1+45 0.0038 0.03 Q | | | | PR-2024-001656 (TM) Exhibit 8 - MND and Technical Studies EX2YR24HR Page 6 of 9
1+50 0.0041 0.03 Q | | | |

1+55 0.0043 0.04 Q | | | | 2+ 0 0.0046 0.04 Q | | | | 2+ 5 0.0048 0.04 QV | | | | 2+10 0.0051 0.04 QV | | | | 2+15 0.0053 0.04 QV | | | | 2+20 0.0056 0.04 QV | | | | 2+25 0.0058 0.04 QV | | | | 2+30 0.0061 0.04 QV | | | | 2+35 0.0063 0.04 QV | | | | 2+40 0.0067 0.04 QV | | | | 2+45 0.0070 0.05 QV | | | | 2+50 0.0073 0.05 QV | | | | 2+55 0.0076 0.05 QV | | | | 3+ 0 0.0079 0.05 QV | | | | 3+ 5 0.0082 0.05 QV | | | | 3+10 0.0085 0.05 QV | | | | 3+15 0.0089 0.05 QV | | | | 3+20 0.0092 0.05 QV | | | | 3+25 0.0095 0.05 Q V | | | | 3+30 0.0098 0.05 Q V | | | | 3+35 0.0101 0.05 Q V | | | | 3+40 0.0104 0.05 Q V | | | | 3+45 0.0107 0.05 Q V | | | | 3+50 0.0111 0.05 Q V | | | | 3+55 0.0115 0.05 Q V | | | | 4+ 0 0.0118 0.05 Q V | | | | 4+ 5 0.0122 0.05 Q V | | | | 4+10 0.0126 0.05 Q V | | | | 4+15 0.0130 0.05 Q V | | | | 4+20 0.0134 0.06 Q V | | | | 4+25 0.0138 0.06 Q V | | | | 4+30 0.0143 0.06 Q V | | | | 4+35 0.0147 0.06 Q V | | | | 4+40 0.0151 0.06 Q V | | | | 4+45 0.0156 0.06 Q V | | | | 4+50 0.0160 0.07 Q V | | | | 4+55 0.0165 0.07 Q V | | | | 5+ 0 0.0170 0.07 Q V | | | | 5+ 5 0.0175 0.06 Q V | | | | 5+10 0.0179 0.06 Q V | | | | 5+15 0.0183 0.06 Q V | | | | 5+20 0.0187 0.06 Q V | | | | 5+25 0.0191 0.06 Q V | | | | 5+30 0.0195 0.06 Q V | | | | 5+35 0.0200 0.07 Q V | | | | 5+40 0.0205 0.07 Q V | | | | 5+45 0.0210 0.07 Q V | | | | 5+50 0.0215 0.07 Q V | | | | 5+55 0.0220 0.07 Q V | | | | 6+ 0 0.0225 0.07 Q V | | | | 6+ 5 0.0231 0.08 Q V | | | | 6+10 0.0236 0.08 Q V | | | | 6+15 0.0242 0.08 Q V | | | | 6+20 0.0248 0.08 Q V | | | | 6+25 0.0253 0.08 Q V | | | | 6+30 0.0259 0.08 Q V | | | | 6+35 0.0265 0.09 Q V | | | | 6+40 0.0271 0.09 Q V | | | | 6+45 0.0277 0.09 Q V | | | | 6+50 0.0284 0.09 Q V | | | | 6+55 0.0290 0.09 Q V | | | | 7+ 0 0.0296 0.09 Q V | | | | 7+ 5 0.0303 0.09 Q V | | | | 7+10 0.0309 0.09 Q V | | | | 7+15 0.0315 0.09 Q V | | | | 7+20 0.0322 0.10 Q V | | | | 7+25 0.0329 0.10 Q V | | | | 7+30 0.0336 0.10 Q V | | | | 7+35 0.0343 0.10 Q V | | | | 7+40 0.0350 0.11 Q V | | | | 7+45 0.0358 0.11 Q V | | | | 7+50 0.0366 0.11 Q V | | | | 7+55 0.0374 0.12 Q V | | | | 8+ 0 0.0382 0.12 Q V | | | | 8+ 5 0.0391 0.13 Q V | | | | 8+10 0.0400 0.14 Q V | | | | 8+15 0.0409 0.14 Q V | | | | 8+20 0.0419 0.14 Q V | | | | 8+25 0.0428 0.14 Q V| | | | 8+30 0.0438 0.14 Q V| | | | 8+35 0.0448 0.14 Q V| | | | 8+40 0.0458 0.15 Q V| | | | 8+45 0.0468 0.15 Q V| | | | 8+50 0.0478 0.15 Q V | | | 8+55 0.0489 0.15 Q V | | | PR-2024-001656 (TM) Exhibit 8 - MND and Technical Studies EX2YR24HR Page 7 of 9
9+ 0 0.0499 0.16 Q V | | |

9+ 5 0.0511 0.16 Q V | | | 9+10 0.0522 0.17 Q |V | | | 9+15 0.0534 0.17 Q |V | | | 9+20 0.0547 0.18 Q |V | | | 9+25 0.0559 0.18 Q |V | | | 9+30 0.0572 0.18 Q | V | | | 9+35 0.0585 0.19 Q | V | | | 9+40 0.0598 0.19 Q | V | | | 9+45 0.0611 0.19 Q | V | | | 9+50 0.0625 0.20 Q | V | | | 9+55 0.0638 0.20 Q | V | | | 10+ 0 0.0652 0.20 Q | V | | | 10+ 5 0.0664 0.17 Q | V | | | 10+10 0.0674 0.14 Q | V | | | 10+15 0.0683 0.14 Q | V | | | 10+20 0.0693 0.14 Q | V | | | 10+25 0.0702 0.14 Q | V | | | 10+30 0.0712 0.14 Q | V | | | 10+35 0.0723 0.16 Q | V | | | 10+40 0.0735 0.18 Q | V | | | 10+45 0.0747 0.18 Q | V | | | 10+50 0.0760 0.18 Q | V | | | 10+55 0.0773 0.18 Q | V | | | 11+ 0 0.0785 0.18 Q | V | | | 11+ 5 0.0798 0.18 Q | V | | | 11+10 0.0810 0.17 Q | V | | | 11+15 0.0822 0.17 Q | V | | | 11+20 0.0834 0.17 Q | V | | | 11+25 0.0846 0.17 Q | V | | | 11+30 0.0858 0.17 Q | V | | | 11+35 0.0869 0.17 Q | V | | | 11+40 0.0880 0.16 Q | V | | | 11+45 0.0891 0.16 Q | V | | | 11+50 0.0902 0.16 Q | V| | | 11+55 0.0913 0.16 Q | V| | | 12+ 0 0.0924 0.16 Q | V| | | 12+ 5 0.0938 0.19 Q | V| | | 12+10 0.0953 0.22 Q | V | | 12+15 0.0968 0.23 Q | V | | 12+20 0.0984 0.23 Q | V | | 12+25 0.1001 0.24 Q | |V | | 12+30 0.1017 0.24 Q | |V | | 12+35 0.1034 0.25 Q | |V | | 12+40 0.1052 0.25 |Q | | V | | 12+45 0.1069 0.26 |Q | | V | | 12+50 0.1087 0.26 |Q | | V | | 12+55 0.1105 0.26 |Q | | V | | 13+ 0 0.1124 0.26 |Q | | V | | 13+ 5 0.1143 0.29 |Q | | V | | 13+10 0.1164 0.31 |Q | | V | | 13+15 0.1186 0.31 |Q | | V | | 13+20 0.1207 0.31 |Q | | V | | 13+25 0.1229 0.31 |Q | | V | | 13+30 0.1250 0.31 |Q | | V | | 13+35 0.1268 0.26 |Q | | V | | 13+40 0.1283 0.22 Q | | V | | 13+45 0.1298 0.21 Q | | V | | 13+50 0.1313 0.21 Q | | V | | 13+55 0.1327 0.21 Q | | V | | 14+ 0 0.1342 0.21 Q | | V | | 14+ 5 0.1357 0.23 Q | | V | | 14+10 0.1374 0.24 Q | | V| | 14+15 0.1391 0.25 Q | | V| | 14+20 0.1408 0.24 Q | | V| | 14+25 0.1424 0.24 Q | | V | 14+30 0.1440 0.24 Q | | V | 14+35 0.1457 0.24 Q | | V | 14+40 0.1473 0.24 Q | | |V | 14+45 0.1490 0.24 Q | | |V | 14+50 0.1506 0.23 Q | | |V | 14+55 0.1521 0.23 Q | | | V | 15+ 0 0.1537 0.23 Q | | | V | 15+ 5 0.1553 0.22 Q | | | V | 15+10 0.1568 0.22 Q | | | V | 15+15 0.1583 0.22 Q | | | V | 15+20 0.1598 0.22 Q | | | V | 15+25 0.1612 0.21 Q | | | V | 15+30 0.1627 0.21 Q | | | V | 15+35 0.1640 0.19 Q | | | V | 15+40 0.1652 0.18 Q | | | V | 15+45 0.1665 0.17 Q | | | V | 15+50 0.1677 0.17 Q | | | V | 15+55 0.1688 0.17 Q | | | V | 16+ 0 0.1700 0.17 Q | | | V | 16+ 5 0.1708 0.11 Q | | | V | PR-2024-001656 (TM) Exhibit 8 - MND and Technical Studies EX2YR24HR Page 8 of 9
16+10 0.1712 0.05 Q | | | V |

16+15 0.1714 0.04 Q | | | V | 16+20 0.1717 0.04 Q | | | V | 16+25 0.1719 0.04 Q | | | V | 16+30 0.1722 0.04 Q | | | V | 16+35 0.1724 0.03 Q | | | V | 16+40 0.1726 0.03 Q | | | V | 16+45 0.1728 0.03 Q | | | V | 16+50 0.1730 0.03 Q | | | V | 16+55 0.1732 0.03 Q | | | V | 17+ 0 0.1734 0.03 Q | | | V | 17+ 5 0.1736 0.04 Q | | | V | 17+10 0.1739 0.04 Q | | | V | 17+15 0.1742 0.05 Q | | | V | 17+20 0.1745 0.05 Q | | | V | 17+25 0.1749 0.05 Q | | | V | 17+30 0.1752 0.05 Q | | | V | 17+35 0.1755 0.05 Q | | | V | 17+40 0.1758 0.05 Q | | | V | 17+45 0.1761 0.05 Q | | | V | 17+50 0.1764 0.04 Q | | | V | 17+55 0.1767 0.04 Q | | | V | 18+ 0 0.1769 0.04 Q | | | V | 18+ 5 0.1772 0.04 Q | | | V | 18+10 0.1774 0.04 Q | | | V | 18+15 0.1777 0.04 Q | | | V | 18+20 0.1779 0.04 Q | | | V | 18+25 0.1782 0.04 Q | | | V | 18+30 0.1784 0.04 Q | | | V | 18+35 0.1787 0.03 Q | | | V | 18+40 0.1789 0.03 Q | | | V | 18+45 0.1790 0.03 Q | | | V | 18+50 0.1792 0.02 Q | | | V | 18+55 0.1793 0.02 Q | | | V | 19+ 0 0.1795 0.02 Q | | | V | 19+ 5 0.1796 0.02 Q | | | V | 19+10 0.1798 0.03 Q | | | V | 19+15 0.1800 0.03 Q | | | V | 19+20 0.1802 0.03 Q | | | V | 19+25 0.1805 0.04 Q | | | V | 19+30 0.1807 0.04 Q | | | V | 19+35 0.1809 0.03 Q | | | V | 19+40 0.1811 0.03 Q | | | V | 19+45 0.1813 0.03 Q | | | V | 19+50 0.1815 0.02 Q | | | V | 19+55 0.1816 0.02 Q | | | V | 20+ 0 0.1817 0.02 Q | | | V | 20+ 5 0.1819 0.02 Q | | | V | 20+10 0.1821 0.03 Q | | | V | 20+15 0.1823 0.03 Q | | | V | 20+20 0.1824 0.03 Q | | | V | 20+25 0.1826 0.03 Q | | | V | 20+30 0.1828 0.03 Q | | | V | 20+35 0.1830 0.03 Q | | | V | 20+40 0.1832 0.03 Q | | | V | 20+45 0.1834 0.03 Q | | | V | 20+50 0.1835 0.02 Q | | | V | 20+55 0.1837 0.02 Q | | | V | 21+ 0 0.1838 0.02 Q | | | V | 21+ 5 0.1840 0.02 Q | | | V | 21+10 0.1841 0.03 Q | | | V | 21+15 0.1843 0.03 Q | | | V| 21+20 0.1845 0.02 Q | | | V| 21+25 0.1846 0.02 Q | | | V| 21+30 0.1848 0.02 Q | | | V| 21+35 0.1849 0.02 Q | | | V| 21+40 0.1851 0.03 Q | | | V| 21+45 0.1853 0.03 Q | | | V| 21+50 0.1854 0.02 Q | | | V| 21+55 0.1856 0.02 Q | | | V| 22+ 0 0.1857 0.02 Q | | | V| 22+ 5 0.1859 0.02 Q | | | V| 22+10 0.1860 0.03 Q | | | V| 22+15 0.1862 0.03 Q | | | V| 22+20 0.1864 0.02 Q | | | V| 22+25 0.1865 0.02 Q | | | V| 22+30 0.1866 0.02 Q | | | V| 22+35 0.1868 0.02 Q | | | V| 22+40 0.1869 0.02 Q | | | V| 22+45 0.1870 0.02 Q | | | V| 22+50 0.1871 0.02 Q | | | V| 22+55 0.1873 0.02 Q | | | V| 23+ 0 0.1874 0.02 Q | | | V| 23+ 5 0.1875 0.02 Q | | | V| 23+10 0.1877 0.02 Q | | | V| 23+15 0.1878 0.02 Q | | | V| PR-2024-001656 (TM) Exhibit 8 - MND and Technical Studies EX2YR24HR Page 9 of 9
23+20 0.1879 0.02 Q | | | V|

23+25 0.1880 0.02 Q | | | V| 23+30 0.1882 0.02 Q | | | V| 23+35 0.1883 0.02 Q | | | V| 23+40 0.1884 0.02 Q | | | V| 23+45 0.1885 0.02 Q | | | V| 23+50 0.1887 0.02 Q | | | V| 23+55 0.1888 0.02 Q | | | V| 24+ 0 0.1889 0.02 Q | | | V| 24+ 5 0.1890 0.01 Q | | | V| 24+10 0.1890 0.00 Q | | | V| 24+15 0.1890 0.00 Q | | | V| ----------------------------------------------------------------------- PR-2024-001656 (TM) Exhibit 8 - MND and Technical Studies

4 Section 2
Post-Development Unit Hydrograph

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Civil Engineering • Surveying-Plannin
6879 Airport Drive, Riverside, CA 92504
Tel:(951) 688-0241 • Fax:(951) 688-0599
PR-2024-001656 (TM) Exhibit 8 - MND and Technical Studies PRO 2YR24HR Page 1 of 9
U n i t H y d r o g r a p h A n a l y s i s
Co
pyright (c) CIVILCADD/CIVILDESIGN, 1989 - 2008, Version 8.1 Study date 02/22/24 File: 2YR242.out
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ ------------------------------------------------------------------------ Riverside County Synthetic Unit Hydrology Method
RCFC & WCD Manual date - April 1978
Program License Serial Number 5006
--------------------------------------------------------------------- English (in-lb) Input Units Used
English Rainfall Data (Inches) Input Values Used
English Units used in output format
--------------------------------------------------------------------- -------------------------------------------------------------------- Drainage Area = 7.00(Ac.) = 0.011 Sq. Mi.

Drainage Area for Depth-Area Areal Adjustment = 7.00(Ac.) = 0.011 Sq. Mi.

Length along longest watercourse = 861.00(Ft.)
Length along longest watercourse measured to centroid = 430.00(Ft.) Length along longest watercourse = 0.163 Mi.

Length along longest watercourse measured to centroid = 0.081 Mi.

Difference in elevation = 16.90(Ft.)
Slope along watercourse = 103.6376 Ft./Mi.

Average Manning's 'N' = 0.015
Lag time = 0.029 Hr.

Lag time = 1.73 Min.
25% of lag time = 0.43 Min.
40% of lag time = 0.69 Min.

Unit time = 5.00 Min.

Duration of storm = 24 Hour(s)
User Entered Base Flow = 0.00(CFS)
2 YEAR Area rainfall data:

Area(Ac.)[1] Rainfall(In)[2] Weighting[1*2]

7.00 1.80 12.60
100 YEAR Area rainfall data:

Area(Ac.)[1] Rainfall(In)[2] Weighting[1*2]

Area(Ac.) Runoff Index Impervious %

7.000 69.00 0.600
Total Area Entered = 7.00(Ac.)
RI RI Infil. Rate Impervious Adj. Infil. Rate Area% F AMC2 AMC-1 (In/Hr) (Dec.%) (In/Hr) (Dec.) (In/Hr)

69.0 49.8 0.574 0.600 0.264 1.000 0.264 Sum (F) = 0.264
Area averaged mean soil loss (F) (In/Hr) = 0.264
Minimum soil loss rate ((In/Hr)) = 0.132
(for 24 hour storm duration)
Soil low loss rate (decimal) = 0.420
--------------------------------------------------------------------- U n i t H y d r o g r a p h
VALLEY S-Curve
-------------------------------------------------------------------- Unit Hydrograph Data
--------------------------------------------------------------------- Unit time period Time % of lag Distribution Unit Hydrograph (hrs) Graph % (CFS) PR-2024-001656 (TM) Exhibit 8 - MND and Technical Studies PRO 2YR24HR Page 2 of 9
---------------------------------------------------------------------

1 0.083 288.833 55.504 3.916 2 0.167 577.666 37.752 2.663 3 0.250 866.500 6.744 0.476 Sum = 100.000 Sum= 7.055
----------------------------------------------------------------------- The following loss rate calculations reflect use of the minimum calculated loss rate subtracted from the Storm Rain to produce the maximum Effective Rain value Unit Time Pattern Storm Rain Loss rate(In./Hr) Effective (Hr.) Percent (In/Hr) Max | Low (In/Hr) 1 0.08 0.07 0.014 ( 0.468) 0.006 0.008 2 0.17 0.07 0.014 ( 0.466) 0.006 0.008 3 0.25 0.07 0.014 ( 0.464) 0.006 0.008 4 0.33 0.10 0.022 ( 0.463) 0.009 0.013 5 0.42 0.10 0.022 ( 0.461) 0.009 0.013 6 0.50 0.10 0.022 ( 0.459) 0.009 0.013 7 0.58 0.10 0.022 ( 0.457) 0.009 0.013 8 0.67 0.10 0.022 ( 0.455) 0.009 0.013 9 0.75 0.10 0.022 ( 0.454) 0.009 0.013 10 0.83 0.13 0.029 ( 0.452) 0.012 0.017 11 0.92 0.13 0.029 ( 0.450) 0.012 0.017 12 1.00 0.13 0.029 ( 0.448) 0.012 0.017 13 1.08 0.10 0.022 ( 0.447) 0.009 0.013 14 1.17 0.10 0.022 ( 0.445) 0.009 0.013 15 1.25 0.10 0.022 ( 0.443) 0.009 0.013 16 1.33 0.10 0.022 ( 0.441) 0.009 0.013 17 1.42 0.10 0.022 ( 0.439) 0.009 0.013 18 1.50 0.10 0.022 ( 0.438) 0.009 0.013 19 1.58 0.10 0.022 ( 0.436) 0.009 0.013 20 1.67 0.10 0.022 ( 0.434) 0.009 0.013 21 1.75 0.10 0.022 ( 0.433) 0.009 0.013 22 1.83 0.13 0.029 ( 0.431) 0.012 0.017 23 1.92 0.13 0.029 ( 0.429) 0.012 0.017 24 2.00 0.13 0.029 ( 0.427) 0.012 0.017 25 2.08 0.13 0.029 ( 0.426) 0.012 0.017 26 2.17 0.13 0.029 ( 0.424) 0.012 0.017 27 2.25 0.13 0.029 ( 0.422) 0.012 0.017 28 2.33 0.13 0.029 ( 0.420) 0.012 0.017 29 2.42 0.13 0.029 ( 0.419) 0.012 0.017 30 2.50 0.13 0.029 ( 0.417) 0.012 0.017 31 2.58 0.17 0.036 ( 0.415) 0.015 0.021 32 2.67 0.17 0.036 ( 0.414) 0.015 0.021 33 2.75 0.17 0.036 ( 0.412) 0.015 0.021 34 2.83 0.17 0.036 ( 0.410) 0.015 0.021 35 2.92 0.17 0.036 ( 0.408) 0.015 0.021 36 3.00 0.17 0.036 ( 0.407) 0.015 0.021 37 3.08 0.17 0.036 ( 0.405) 0.015 0.021 38 3.17 0.17 0.036 ( 0.403) 0.015 0.021 39 3.25 0.17 0.036 ( 0.402) 0.015 0.021 40 3.33 0.17 0.036 ( 0.400) 0.015 0.021 41 3.42 0.17 0.036 ( 0.398) 0.015 0.021 42 3.50 0.17 0.036 ( 0.397) 0.015 0.021 43 3.58 0.17 0.036 ( 0.395) 0.015 0.021 44 3.67 0.17 0.036 ( 0.393) 0.015 0.021 45 3.75 0.17 0.036 ( 0.392) 0.015 0.021 46 3.83 0.20 0.043 ( 0.390) 0.018 0.025 47 3.92 0.20 0.043 ( 0.388) 0.018 0.025 48 4.00 0.20 0.043 ( 0.387) 0.018 0.025 49 4.08 0.20 0.043 ( 0.385) 0.018 0.025 50 4.17 0.20 0.043 ( 0.384) 0.018 0.025 51 4.25 0.20 0.043 ( 0.382) 0.018 0.025 52 4.33 0.23 0.050 ( 0.380) 0.021 0.029 53 4.42 0.23 0.050 ( 0.379) 0.021 0.029 54 4.50 0.23 0.050 ( 0.377) 0.021 0.029 55 4.58 0.23 0.050 ( 0.375) 0.021 0.029 56 4.67 0.23 0.050 ( 0.374) 0.021 0.029 57 4.75 0.23 0.050 ( 0.372) 0.021 0.029 58 4.83 0.27 0.058 ( 0.371) 0.024 0.033 59 4.92 0.27 0.058 ( 0.369) 0.024 0.033 60 5.00 0.27 0.058 ( 0.367) 0.024 0.033 61 5.08 0.20 0.043 ( 0.366) 0.018 0.025 62 5.17 0.20 0.043 ( 0.364) 0.018 0.025 63 5.25 0.20 0.043 ( 0.363) 0.018 0.025 64 5.33 0.23 0.050 ( 0.361) 0.021 0.029 65 5.42 0.23 0.050 ( 0.359) 0.021 0.029 66 5.50 0.23 0.050 ( 0.358) 0.021 0.029 67 5.58 0.27 0.058 ( 0.356) 0.024 0.033 68 5.67 0.27 0.058 ( 0.355) 0.024 0.033 69 5.75 0.27 0.058 ( 0.353) 0.024 0.033 70 5.83 0.27 0.058 ( 0.352) 0.024 0.033 71 5.92 0.27 0.058 ( 0.350) 0.024 0.033 72 6.00 0.27 0.058 ( 0.349) 0.024 0.033 73 6.08 0.30 0.065 ( 0.347) 0.027 0.038 PR-2024-001656 (TM) Exhibit 8 - MND and Technical Studies PRO 2YR24HR Page 3 of 9
74 6.17 0.30 0.065 ( 0.345) 0.027 0.038

75 6.25 0.30 0.065 ( 0.344) 0.027 0.038 76 6.33 0.30 0.065 ( 0.342) 0.027 0.038 77 6.42 0.30 0.065 ( 0.341) 0.027 0.038 78 6.50 0.30 0.065 ( 0.339) 0.027 0.038 79 6.58 0.33 0.072 ( 0.338) 0.030 0.042 80 6.67 0.33 0.072 ( 0.336) 0.030 0.042 81 6.75 0.33 0.072 ( 0.335) 0.030 0.042 82 6.83 0.33 0.072 ( 0.333) 0.030 0.042 83 6.92 0.33 0.072 ( 0.332) 0.030 0.042 84 7.00 0.33 0.072 ( 0.330) 0.030 0.042 85 7.08 0.33 0.072 ( 0.329) 0.030 0.042 86 7.17 0.33 0.072 ( 0.327) 0.030 0.042 87 7.25 0.33 0.072 ( 0.326) 0.030 0.042 88 7.33 0.37 0.079 ( 0.324) 0.033 0.046 89 7.42 0.37 0.079 ( 0.323) 0.033 0.046 90 7.50 0.37 0.079 ( 0.321) 0.033 0.046 91 7.58 0.40 0.086 ( 0.320) 0.036 0.050 92 7.67 0.40 0.086 ( 0.318) 0.036 0.050 93 7.75 0.40 0.086 ( 0.317) 0.036 0.050 94 7.83 0.43 0.094 ( 0.315) 0.039 0.054 95 7.92 0.43 0.094 ( 0.314) 0.039 0.054 96 8.00 0.43 0.094 ( 0.312) 0.039 0.054 97 8.08 0.50 0.108 ( 0.311) 0.045 0.063 98 8.17 0.50 0.108 ( 0.310) 0.045 0.063 99 8.25 0.50 0.108 ( 0.308) 0.045 0.063 100 8.33 0.50 0.108 ( 0.307) 0.045 0.063 101 8.42 0.50 0.108 ( 0.305) 0.045 0.063 102 8.50 0.50 0.108 ( 0.304) 0.045 0.063 103 8.58 0.53 0.115 ( 0.302) 0.048 0.067 104 8.67 0.53 0.115 ( 0.301) 0.048 0.067 105 8.75 0.53 0.115 ( 0.300) 0.048 0.067 106 8.83 0.57 0.122 ( 0.298) 0.051 0.071 107 8.92 0.57 0.122 ( 0.297) 0.051 0.071 108 9.00 0.57 0.122 ( 0.295) 0.051 0.071 109 9.08 0.63 0.137 ( 0.294) 0.057 0.079 110 9.17 0.63 0.137 ( 0.293) 0.057 0.079 111 9.25 0.63 0.137 ( 0.291) 0.057 0.079 112 9.33 0.67 0.144 ( 0.290) 0.060 0.084 113 9.42 0.67 0.144 ( 0.288) 0.060 0.084 114 9.50 0.67 0.144 ( 0.287) 0.060 0.084 115 9.58 0.70 0.151 ( 0.286) 0.064 0.088 116 9.67 0.70 0.151 ( 0.284) 0.064 0.088 117 9.75 0.70 0.151 ( 0.283) 0.064 0.088 118 9.83 0.73 0.158 ( 0.282) 0.067 0.092 119 9.92 0.73 0.158 ( 0.280) 0.067 0.092 120 10.00 0.73 0.158 ( 0.279) 0.067 0.092 121 10.08 0.50 0.108 ( 0.277) 0.045 0.063 122 10.17 0.50 0.108 ( 0.276) 0.045 0.063 123 10.25 0.50 0.108 ( 0.275) 0.045 0.063 124 10.33 0.50 0.108 ( 0.273) 0.045 0.063 125 10.42 0.50 0.108 ( 0.272) 0.045 0.063 126 10.50 0.50 0.108 ( 0.271) 0.045 0.063 127 10.58 0.67 0.144 ( 0.269) 0.060 0.084 128 10.67 0.67 0.144 ( 0.268) 0.060 0.084 129 10.75 0.67 0.144 ( 0.267) 0.060 0.084 130 10.83 0.67 0.144 ( 0.266) 0.060 0.084 131 10.92 0.67 0.144 ( 0.264) 0.060 0.084 132 11.00 0.67 0.144 ( 0.263) 0.060 0.084 133 11.08 0.63 0.137 ( 0.262) 0.057 0.079 134 11.17 0.63 0.137 ( 0.260) 0.057 0.079 135 11.25 0.63 0.137 ( 0.259) 0.057 0.079 136 11.33 0.63 0.137 ( 0.258) 0.057 0.079 137 11.42 0.63 0.137 ( 0.256) 0.057 0.079 138 11.50 0.63 0.137 ( 0.255) 0.057 0.079 139 11.58 0.57 0.122 ( 0.254) 0.051 0.071 140 11.67 0.57 0.122 ( 0.253) 0.051 0.071 141 11.75 0.57 0.122 ( 0.251) 0.051 0.071 142 11.83 0.60 0.130 ( 0.250) 0.054 0.075 143 11.92 0.60 0.130 ( 0.249) 0.054 0.075 144 12.00 0.60 0.130 ( 0.248) 0.054 0.075 145 12.08 0.83 0.180 ( 0.246) 0.076 0.104 146 12.17 0.83 0.180 ( 0.245) 0.076 0.104 147 12.25 0.83 0.180 ( 0.244) 0.076 0.104 148 12.33 0.87 0.187 ( 0.243) 0.079 0.109 149 12.42 0.87 0.187 ( 0.242) 0.079 0.109 150 12.50 0.87 0.187 ( 0.240) 0.079 0.109 151 12.58 0.93 0.202 ( 0.239) 0.085 0.117 152 12.67 0.93 0.202 ( 0.238) 0.085 0.117 153 12.75 0.93 0.202 ( 0.237) 0.085 0.117 154 12.83 0.97 0.209 ( 0.236) 0.088 0.121 155 12.92 0.97 0.209 ( 0.234) 0.088 0.121 156 13.00 0.97 0.209 ( 0.233) 0.088 0.121 157 13.08 1.13 0.245 ( 0.232) 0.103 0.142 158 13.17 1.13 0.245 ( 0.231) 0.103 0.142 159 13.25 1.13 0.245 ( 0.230) 0.103 0.142 PR-2024-001656 (TM) Exhibit 8 - MND and Technical Studies PRO 2YR24HR Page 4 of 9
160 13.33 1.13 0.245 ( 0.228) 0.103 0.142 1 61 13.42 1.13 0.245 ( 0.227) 0.103 0.142 162 13.50 1.13 0.245 ( 0.226) 0.103 0.142 163 13.58 0.77 0.166 ( 0.225) 0.070 0.096 164 13.67 0.77 0.166 ( 0.224) 0.070 0.096 165 13.75 0.77 0.166 ( 0.223) 0.070 0.096 166 13.83 0.77 0.166 ( 0.222) 0.070 0.096 167 13.92 0.77 0.166 ( 0.220) 0.070 0.096 168 14.00 0.77 0.166 ( 0.219) 0.070 0.096 169 14.08 0.90 0.194 ( 0.218) 0.082 0.113 170 14.17 0.90 0.194 ( 0.217) 0.082 0.113 171 14.25 0.90 0.194 ( 0.216) 0.082 0.113 172 14.33 0.87 0.187 ( 0.215) 0.079 0.109 173 14.42 0.87 0.187 ( 0.214) 0.079 0.109 174 14.50 0.87 0.187 ( 0.213) 0.079 0.109 175 14.58 0.87 0.187 ( 0.212) 0.079 0.109 176 14.67 0.87 0.187 ( 0.210) 0.079 0.109 177 14.75 0.87 0.187 ( 0.209) 0.079 0.109 178 14.83 0.83 0.180 ( 0.208) 0.076 0.104 179 14.92 0.83 0.180 ( 0.207) 0.076 0.104 180 15.00 0.83 0.180 ( 0.206) 0.076 0.104 181 15.08 0.80 0.173 ( 0.205) 0.073 0.100 182 15.17 0.80 0.173 ( 0.204) 0.073 0.100 183 15.25 0.80 0.173 ( 0.203) 0.073 0.100 184 15.33 0.77 0.166 ( 0.202) 0.070 0.096 185 15.42 0.77 0.166 ( 0.201) 0.070 0.096 186 15.50 0.77 0.166 ( 0.200) 0.070 0.096 187 15.58 0.63 0.137 ( 0.199) 0.057 0.079 188 15.67 0.63 0.137 ( 0.198) 0.057 0.079 189 15.75 0.63 0.137 ( 0.197) 0.057 0.079 190 15.83 0.63 0.137 ( 0.196) 0.057 0.079 191 15.92 0.63 0.137 ( 0.195) 0.057 0.079 192 16.00 0.63 0.137 ( 0.194) 0.057 0.079 193 16.08 0.13 0.029 ( 0.193) 0.012 0.017 194 16.17 0.13 0.029 ( 0.192) 0.012 0.017 195 16.25 0.13 0.029 ( 0.191) 0.012 0.017 196 16.33 0.13 0.029 ( 0.190) 0.012 0.017 197 16.42 0.13 0.029 ( 0.189) 0.012 0.017 198 16.50 0.13 0.029 ( 0.188) 0.012 0.017 199 16.58 0.10 0.022 ( 0.187) 0.009 0.013 200 16.67 0.10 0.022 ( 0.186) 0.009 0.013 201 16.75 0.10 0.022 ( 0.185) 0.009 0.013 202 16.83 0.10 0.022 ( 0.184) 0.009 0.013 203 16.92 0.10 0.022 ( 0.183) 0.009 0.013 204 17.00 0.10 0.022 ( 0.182) 0.009 0.013 205 17.08 0.17 0.036 ( 0.181) 0.015 0.021 206 17.17 0.17 0.036 ( 0.181) 0.015 0.021 207 17.25 0.17 0.036 ( 0.180) 0.015 0.021 208 17.33 0.17 0.036 ( 0.179) 0.015 0.021 209 17.42 0.17 0.036 ( 0.178) 0.015 0.021 210 17.50 0.17 0.036 ( 0.177) 0.015 0.021 211 17.58 0.17 0.036 ( 0.176) 0.015 0.021 212 17.67 0.17 0.036 ( 0.175) 0.015 0.021 213 17.75 0.17 0.036 ( 0.174) 0.015 0.021 214 17.83 0.13 0.029 ( 0.173) 0.012 0.017 215 17.92 0.13 0.029 ( 0.173) 0.012 0.017 216 18.00 0.13 0.029 ( 0.172) 0.012 0.017 217 18.08 0.13 0.029 ( 0.171) 0.012 0.017 218 18.17 0.13 0.029 ( 0.170) 0.012 0.017 219 18.25 0.13 0.029 ( 0.169) 0.012 0.017 220 18.33 0.13 0.029 ( 0.168) 0.012 0.017 221 18.42 0.13 0.029 ( 0.168) 0.012 0.017 222 18.50 0.13 0.029 ( 0.167) 0.012 0.017 223 18.58 0.10 0.022 ( 0.166) 0.009 0.013 224 18.67 0.10 0.022 ( 0.165) 0.009 0.013 225 18.75 0.10 0.022 ( 0.164) 0.009 0.013 226 18.83 0.07 0.014 ( 0.164) 0.006 0.008 227 18.92 0.07 0.014 ( 0.163) 0.006 0.008 228 19.00 0.07 0.014 ( 0.162) 0.006 0.008 229 19.08 0.10 0.022 ( 0.161) 0.009 0.013 230 19.17 0.10 0.022 ( 0.160) 0.009 0.013 231 19.25 0.10 0.022 ( 0.160) 0.009 0.013 232 19.33 0.13 0.029 ( 0.159) 0.012 0.017 233 19.42 0.13 0.029 ( 0.158) 0.012 0.017 234 19.50 0.13 0.029 ( 0.158) 0.012 0.017 235 19.58 0.10 0.022 ( 0.157) 0.009 0.013 236 19.67 0.10 0.022 ( 0.156) 0.009 0.013 237 19.75 0.10 0.022 ( 0.155) 0.009 0.013 238 19.83 0.07 0.014 ( 0.155) 0.006 0.008 239 19.92 0.07 0.014 ( 0.154) 0.006 0.008 240 20.00 0.07 0.014 ( 0.153) 0.006 0.008 241 20.08 0.10 0.022 ( 0.153) 0.009 0.013 242 20.17 0.10 0.022 ( 0.152) 0.009 0.013 243 20.25 0.10 0.022 ( 0.151) 0.009 0.013 244 20.33 0.10 0.022 ( 0.151) 0.009 0.013 245 20.42 0.10 0.022 ( 0.150) 0.009 0.013 PR-2024-001656 (TM) Exhibit 8 - MND and Technical Studies PRO 2YR24HR Page 5 of 9
246 20.50 0.10 0.022 ( 0.149) 0.009 0.013 2 47 20.58 0.10 0.022 ( 0.149) 0.009 0.013 248 20.67 0.10 0.022 ( 0.148) 0.009 0.013 249 20.75 0.10 0.022 ( 0.148) 0.009 0.013 250 20.83 0.07 0.014 ( 0.147) 0.006 0.008 251 20.92 0.07 0.014 ( 0.146) 0.006 0.008 252 21.00 0.07 0.014 ( 0.146) 0.006 0.008 253 21.08 0.10 0.022 ( 0.145) 0.009 0.013 254 21.17 0.10 0.022 ( 0.145) 0.009 0.013 255 21.25 0.10 0.022 ( 0.144) 0.009 0.013 256 21.33 0.07 0.014 ( 0.143) 0.006 0.008 257 21.42 0.07 0.014 ( 0.143) 0.006 0.008 258 21.50 0.07 0.014 ( 0.142) 0.006 0.008 259 21.58 0.10 0.022 ( 0.142) 0.009 0.013 260 21.67 0.10 0.022 ( 0.141) 0.009 0.013 261 21.75 0.10 0.022 ( 0.141) 0.009 0.013 262 21.83 0.07 0.014 ( 0.140) 0.006 0.008 263 21.92 0.07 0.014 ( 0.140) 0.006 0.008 264 22.00 0.07 0.014 ( 0.139) 0.006 0.008 265 22.08 0.10 0.022 ( 0.139) 0.009 0.013 266 22.17 0.10 0.022 ( 0.138) 0.009 0.013 267 22.25 0.10 0.022 ( 0.138) 0.009 0.013 268 22.33 0.07 0.014 ( 0.138) 0.006 0.008 269 22.42 0.07 0.014 ( 0.137) 0.006 0.008 270 22.50 0.07 0.014 ( 0.137) 0.006 0.008 271 22.58 0.07 0.014 ( 0.136) 0.006 0.008 272 22.67 0.07 0.014 ( 0.136) 0.006 0.008 273 22.75 0.07 0.014 ( 0.136) 0.006 0.008 274 22.83 0.07 0.014 ( 0.135) 0.006 0.008 275 22.92 0.07 0.014 ( 0.135) 0.006 0.008 276 23.00 0.07 0.014 ( 0.135) 0.006 0.008 277 23.08 0.07 0.014 ( 0.134) 0.006 0.008 278 23.17 0.07 0.014 ( 0.134) 0.006 0.008 279 23.25 0.07 0.014 ( 0.134) 0.006 0.008 280 23.33 0.07 0.014 ( 0.133) 0.006 0.008 281 23.42 0.07 0.014 ( 0.133) 0.006 0.008 282 23.50 0.07 0.014 ( 0.133) 0.006 0.008 283 23.58 0.07 0.014 ( 0.133) 0.006 0.008 284 23.67 0.07 0.014 ( 0.133) 0.006 0.008 285 23.75 0.07 0.014 ( 0.132) 0.006 0.008 286 23.83 0.07 0.014 ( 0.132) 0.006 0.008 287 23.92 0.07 0.014 ( 0.132) 0.006 0.008 288 24.00 0.07 0.014 ( 0.132) 0.006 0.008 (Loss Rate Not Used)
Sum = 100.0 Sum = 12.5 Flood volume = Effective rainfall 1.04(In)
times area 7.0(Ac.)/[(In)/(Ft.)] = 0.6(Ac.Ft) Total soil loss = 0.76(In)
Total soil loss = 0.441(Ac.Ft)
Total rainfall = 1.80(In)
Flood volume = 26527.7 Cubic Feet
Total soil loss = 19209.7 Cubic Feet
-------------------------------------------------------------------- Peak flow rate of this hydrograph = 1.002(CFS)
-------------------------------------------------------------------- ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 24 - H O U R S T O R M
R u n o f f H y d r o g r a p h
-------------------------------------------------------------------- Hydrograph in 5 Minute intervals ((CFS))
-------------------------------------------------------------------- Time(h+m) Volume Ac.Ft Q(CFS) 0 2.5 5.0 7.5 10.0 ----------------------------------------------------------------------- 0+ 5 0.0002 0.03 Q | | | | 0+10 0.0006 0.05 Q | | | | 0+15 0.0010 0.06 Q | | | | 0+20 0.0015 0.08 Q | | | | 0+25 0.0021 0.09 Q | | | | 0+30 0.0027 0.09 Q | | | | 0+35 0.0033 0.09 Q | | | | 0+40 0.0040 0.09 Q | | | | 0+45 0.0046 0.09 Q | | | | 0+50 0.0053 0.10 Q | | | | 0+55 0.0061 0.12 Q | | | | 1+ 0 0.0069 0.12 Q | | | | 1+ 5 0.0076 0.10 Q | | | | 1+10 0.0082 0.09 Q | | | | 1+15 0.0088 0.09 Q | | | | 1+20 0.0094 0.09 Q | | | | 1+25 0.0100 0.09 Q | | | | 1+30 0.0106 0.09 Q | | | | 1+35 0.0113 0.09 Q | | | | 1+40 0.0119 0.09 Q | | | | 1+45 0.0125 0.09 Q | | | | 1+50 0.0132 0.10 Q | | | | PR-2024-001656 (TM) Exhibit 8 - MND and Technical Studies PRO 2YR24HR Page 6 of 9
1+55 0.0140 0.12 Q | | | |

2+ 0 0.0148 0.12 Q | | | | 2+ 5 0.0156 0.12 QV | | | | 2+10 0.0164 0.12 QV | | | | 2+15 0.0172 0.12 QV | | | | 2+20 0.0181 0.12 QV | | | | 2+25 0.0189 0.12 QV | | | | 2+30 0.0197 0.12 QV | | | | 2+35 0.0206 0.13 QV | | | | 2+40 0.0216 0.15 QV | | | | 2+45 0.0226 0.15 QV | | | | 2+50 0.0236 0.15 QV | | | | 2+55 0.0247 0.15 QV | | | | 3+ 0 0.0257 0.15 QV | | | | 3+ 5 0.0267 0.15 QV | | | | 3+10 0.0277 0.15 QV | | | | 3+15 0.0287 0.15 QV | | | | 3+20 0.0297 0.15 QV | | | | 3+25 0.0307 0.15 Q V | | | | 3+30 0.0318 0.15 Q V | | | | 3+35 0.0328 0.15 Q V | | | | 3+40 0.0338 0.15 Q V | | | | 3+45 0.0348 0.15 Q V | | | | 3+50 0.0359 0.16 Q V | | | | 3+55 0.0371 0.17 Q V | | | | 4+ 0 0.0384 0.18 Q V | | | | 4+ 5 0.0396 0.18 Q V | | | | 4+10 0.0408 0.18 Q V | | | | 4+15 0.0420 0.18 Q V | | | | 4+20 0.0433 0.19 Q V | | | | 4+25 0.0447 0.20 Q V | | | | 4+30 0.0462 0.21 Q V | | | | 4+35 0.0476 0.21 Q V | | | | 4+40 0.0490 0.21 Q V | | | | 4+45 0.0504 0.21 Q V | | | | 4+50 0.0520 0.22 Q V | | | | 4+55 0.0536 0.23 Q V | | | | 5+ 0 0.0552 0.24 Q V | | | | 5+ 5 0.0566 0.20 Q V | | | | 5+10 0.0578 0.18 Q V | | | | 5+15 0.0591 0.18 Q V | | | | 5+20 0.0604 0.19 Q V | | | | 5+25 0.0618 0.20 Q V | | | | 5+30 0.0632 0.21 Q V | | | | 5+35 0.0647 0.22 Q V | | | | 5+40 0.0664 0.23 Q V | | | | 5+45 0.0680 0.24 Q V | | | | 5+50 0.0696 0.24 Q V | | | | 5+55 0.0712 0.24 Q V | | | | 6+ 0 0.0729 0.24 Q V | | | | 6+ 5 0.0746 0.25 |Q V | | | | 6+10 0.0764 0.26 |Q V | | | | 6+15 0.0782 0.27 |Q V | | | | 6+20 0.0801 0.27 |Q V | | | | 6+25 0.0819 0.27 |Q V | | | | 6+30 0.0837 0.27 |Q V | | | | 6+35 0.0857 0.28 |Q V | | | | 6+40 0.0877 0.29 |Q V | | | | 6+45 0.0897 0.29 |Q V | | | | 6+50 0.0917 0.29 |Q V | | | | 6+55 0.0938 0.29 |Q V | | | | 7+ 0 0.0958 0.29 |Q V | | | | 7+ 5 0.0978 0.29 |Q V | | | | 7+10 0.0998 0.29 |Q V | | | | 7+15 0.1019 0.29 |Q V | | | | 7+20 0.1040 0.31 |Q V | | | | 7+25 0.1062 0.32 |Q V | | | | 7+30 0.1085 0.32 |Q V | | | | 7+35 0.1108 0.34 |Q V | | | | 7+40 0.1132 0.35 |Q V | | | | 7+45 0.1157 0.35 |Q V | | | | 7+50 0.1182 0.37 |Q V | | | | 7+55 0.1209 0.38 |Q V | | | | 8+ 0 0.1235 0.38 |Q V | | | | 8+ 5 0.1264 0.42 |Q V | | | | 8+10 0.1294 0.44 |Q V | | | | 8+15 0.1324 0.44 |Q V | | | | 8+20 0.1355 0.44 |Q V | | | | 8+25 0.1385 0.44 |Q V| | | | 8+30 0.1416 0.44 |Q V| | | | 8+35 0.1447 0.46 |Q V| | | | 8+40 0.1479 0.47 |Q V| | | | 8+45 0.1512 0.47 |Q V| | | | 8+50 0.1546 0.49 |Q V | | | 8+55 0.1580 0.50 |Q V | | | 9+ 0 0.1614 0.50 | Q V | | | PR-2024-001656 (TM) Exhibit 8 - MND and Technical Studies PRO 2YR24HR Page 7 of 9
9+ 5 0.1651 0.53 | Q V | | |

9+10 0.1689 0.56 | Q |V | | | 9+15 0.1728 0.56 | Q |V | | | 9+20 0.1768 0.58 | Q |V | | | 9+25 0.1808 0.59 | Q |V | | | 9+30 0.1849 0.59 | Q | V | | | 9+35 0.1891 0.61 | Q | V | | | 9+40 0.1933 0.62 | Q | V | | | 9+45 0.1976 0.62 | Q | V | | | 9+50 0.2019 0.64 | Q | V | | | 9+55 0.2064 0.65 | Q | V | | | 10+ 0 0.2109 0.65 | Q | V | | | 10+ 5 0.2145 0.53 | Q | V | | | 10+10 0.2177 0.46 |Q | V | | | 10+15 0.2207 0.44 |Q | V | | | 10+20 0.2238 0.44 |Q | V | | | 10+25 0.2268 0.44 |Q | V | | | 10+30 0.2299 0.44 |Q | V | | | 10+35 0.2335 0.52 | Q | V | | | 10+40 0.2375 0.58 | Q | V | | | 10+45 0.2415 0.59 | Q | V | | | 10+50 0.2456 0.59 | Q | V | | | 10+55 0.2496 0.59 | Q | V | | | 11+ 0 0.2537 0.59 | Q | V | | | 11+ 5 0.2576 0.57 | Q | V | | | 11+10 0.2615 0.56 | Q | V | | | 11+15 0.2654 0.56 | Q | V | | | 11+20 0.2692 0.56 | Q | V | | | 11+25 0.2731 0.56 | Q | V | | | 11+30 0.2769 0.56 | Q | V | | | 11+35 0.2806 0.53 | Q | V | | | 11+40 0.2841 0.51 | Q | V | | | 11+45 0.2875 0.50 | Q | V | | | 11+50 0.2911 0.52 | Q | V| | | 11+55 0.2947 0.53 | Q | V| | | 12+ 0 0.2984 0.53 | Q | V| | | 12+ 5 0.3028 0.65 | Q | V| | | 12+10 0.3078 0.72 | Q | V | | 12+15 0.3129 0.74 | Q | V | | 12+20 0.3180 0.75 | Q | V | | 12+25 0.3233 0.76 | Q | |V | | 12+30 0.3286 0.77 | Q | |V | | 12+35 0.3341 0.80 | Q | |V | | 12+40 0.3397 0.82 | Q | | V | | 12+45 0.3454 0.83 | Q | | V | | 12+50 0.3512 0.84 | Q | | V | | 12+55 0.3571 0.85 | Q | | V | | 13+ 0 0.3630 0.85 | Q | | V | | 13+ 5 0.3694 0.94 | Q | | V | | 13+10 0.3763 0.99 | Q | | V | | 13+15 0.3832 1.00 | Q | | V | | 13+20 0.3901 1.00 | Q | | V | | 13+25 0.3970 1.00 | Q | | V | | 13+30 0.4039 1.00 | Q | | V | | 13+35 0.4095 0.82 | Q | | V | | 13+40 0.4144 0.70 | Q | | V | | 13+45 0.4190 0.68 | Q | | V | | 13+50 0.4237 0.68 | Q | | V | | 13+55 0.4284 0.68 | Q | | V | | 14+ 0 0.4330 0.68 | Q | | V | | 14+ 5 0.4382 0.74 | Q | | V | | 14+10 0.4436 0.79 | Q | | V| | 14+15 0.4491 0.80 | Q | | V| | 14+20 0.4544 0.78 | Q | | V| | 14+25 0.4597 0.77 | Q | | V | 14+30 0.4650 0.77 | Q | | V | 14+35 0.4703 0.77 | Q | | V | 14+40 0.4756 0.77 | Q | | |V | 14+45 0.4808 0.77 | Q | | |V | 14+50 0.4860 0.75 | Q | | |V | 14+55 0.4911 0.74 | Q | | | V | 15+ 0 0.4962 0.74 | Q | | | V | 15+ 5 0.5011 0.72 | Q | | | V | 15+10 0.5060 0.71 | Q | | | V | 15+15 0.5109 0.71 | Q | | | V | 15+20 0.5156 0.69 | Q | | | V | 15+25 0.5203 0.68 | Q | | | V | 15+30 0.5250 0.68 | Q | | | V | 15+35 0.5292 0.61 | Q | | | V | 15+40 0.5331 0.57 | Q | | | V | 15+45 0.5370 0.56 | Q | | | V | 15+50 0.5408 0.56 | Q | | | V | 15+55 0.5447 0.56 | Q | | | V | 16+ 0 0.5486 0.56 | Q | | | V | 16+ 5 0.5507 0.31 |Q | | | V | 16+10 0.5517 0.15 Q | | | V | PR-2024-001656 (TM) Exhibit 8 - MND and Technical Studies PRO 2YR24HR Page 8 of 9
16+15 0.5525 0.12 Q | | | V |

16+20 0.5534 0.12 Q | | | V | 16+25 0.5542 0.12 Q | | | V | 16+30 0.5550 0.12 Q | | | V | 16+35 0.5557 0.10 Q | | | V | 16+40 0.5563 0.09 Q | | | V | 16+45 0.5569 0.09 Q | | | V | 16+50 0.5575 0.09 Q | | | V | 16+55 0.5581 0.09 Q | | | V | 17+ 0 0.5587 0.09 Q | | | V | 17+ 5 0.5596 0.12 Q | | | V | 17+10 0.5606 0.14 Q | | | V | 17+15 0.5616 0.15 Q | | | V | 17+20 0.5626 0.15 Q | | | V | 17+25 0.5636 0.15 Q | | | V | 17+30 0.5646 0.15 Q | | | V | 17+35 0.5656 0.15 Q | | | V | 17+40 0.5667 0.15 Q | | | V | 17+45 0.5677 0.15 Q | | | V | 17+50 0.5686 0.13 Q | | | V | 17+55 0.5694 0.12 Q | | | V | 18+ 0 0.5702 0.12 Q | | | V | 18+ 5 0.5710 0.12 Q | | | V | 18+10 0.5718 0.12 Q | | | V | 18+15 0.5726 0.12 Q | | | V | 18+20 0.5735 0.12 Q | | | V | 18+25 0.5743 0.12 Q | | | V | 18+30 0.5751 0.12 Q | | | V | 18+35 0.5758 0.10 Q | | | V | 18+40 0.5764 0.09 Q | | | V | 18+45 0.5770 0.09 Q | | | V | 18+50 0.5775 0.07 Q | | | V | 18+55 0.5779 0.06 Q | | | V | 19+ 0 0.5783 0.06 Q | | | V | 19+ 5 0.5789 0.08 Q | | | V | 19+10 0.5794 0.09 Q | | | V | 19+15 0.5801 0.09 Q | | | V | 19+20 0.5808 0.10 Q | | | V | 19+25 0.5816 0.12 Q | | | V | 19+30 0.5824 0.12 Q | | | V | 19+35 0.5831 0.10 Q | | | V | 19+40 0.5837 0.09 Q | | | V | 19+45 0.5843 0.09 Q | | | V | 19+50 0.5848 0.07 Q | | | V | 19+55 0.5852 0.06 Q | | | V | 20+ 0 0.5856 0.06 Q | | | V | 20+ 5 0.5862 0.08 Q | | | V | 20+10 0.5868 0.09 Q | | | V | 20+15 0.5874 0.09 Q | | | V | 20+20 0.5880 0.09 Q | | | V | 20+25 0.5886 0.09 Q | | | V | 20+30 0.5892 0.09 Q | | | V | 20+35 0.5898 0.09 Q | | | V | 20+40 0.5904 0.09 Q | | | V | 20+45 0.5910 0.09 Q | | | V | 20+50 0.5915 0.07 Q | | | V | 20+55 0.5919 0.06 Q | | | V | 21+ 0 0.5923 0.06 Q | | | V | 21+ 5 0.5929 0.08 Q | | | V | 21+10 0.5935 0.09 Q | | | V | 21+15 0.5941 0.09 Q | | | V| 21+20 0.5946 0.07 Q | | | V| 21+25 0.5950 0.06 Q | | | V| 21+30 0.5954 0.06 Q | | | V| 21+35 0.5959 0.08 Q | | | V| 21+40 0.5965 0.09 Q | | | V| 21+45 0.5971 0.09 Q | | | V| 21+50 0.5976 0.07 Q | | | V| 21+55 0.5980 0.06 Q | | | V| 22+ 0 0.5984 0.06 Q | | | V| 22+ 5 0.5989 0.08 Q | | | V| 22+10 0.5995 0.09 Q | | | V| 22+15 0.6002 0.09 Q | | | V| 22+20 0.6007 0.07 Q | | | V| 22+25 0.6011 0.06 Q | | | V| 22+30 0.6015 0.06 Q | | | V| 22+35 0.6019 0.06 Q | | | V| 22+40 0.6023 0.06 Q | | | V| 22+45 0.6027 0.06 Q | | | V| 22+50 0.6031 0.06 Q | | | V| 22+55 0.6035 0.06 Q | | | V| 23+ 0 0.6039 0.06 Q | | | V| 23+ 5 0.6043 0.06 Q | | | V| 23+10 0.6047 0.06 Q | | | V| 23+15 0.6051 0.06 Q | | | V| 23+20 0.6055 0.06 Q | | | V| PR-2024-001656 (TM) Exhibit 8 - MND and Technical Studies PRO 2YR24HR Page 9 of 9
23+25 0.6059 0.06 Q | | | V|

23+30 0.6063 0.06 Q | | | V| 23+35 0.6068 0.06 Q | | | V| 23+40 0.6072 0.06 Q | | | V| 23+45 0.6076 0.06 Q | | | V| 23+50 0.6080 0.06 Q | | | V| 23+55 0.6084 0.06 Q | | | V| 24+ 0 0.6088 0.06 Q | | | V| 24+ 5 0.6090 0.03 Q | | | V| 24+10 0.6090 0.00 Q | | | V| ----------------------------------------------------------------------- PR-2024-001656 (TM) Exhibit 8 - MND and Technical Studies

5 Section 3
Riverside County Plates

adkan CIVIL ENGINEERING• SURVEYING• PIANNING

ENGINEERS
PR-2024-001656 (TM) Exhibit 8 - MND and Technical Studies

Riverside City CouncilApril 22, 2025

Riverside City Council
April 22, 2025