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Appendix C2
Updated Cultural Resources Identification
Report
MASTER CASE NO. 20-073
INITIAL STUDY
801 South Grand Avenue, Suite 850 | Los Angeles, CA 90017
Office: 213-627-8645 | mbakerintl.com MBAKERINTL.COM
January 11, 2022
Mr. Steve Landis, President
MONTE VISTA ASSETS, INC.
8628 Hillside Road
Alta Loma, CA 91701
RE: UPDATED CULTURAL RESOURCES IDENTIFICATION REPORT FOR THE MONTE VISTA
HOMES FONTANA 47 PROJECT, CITY OF FONTANA, SAN BERNARDINO COUNTY, CALIFORNIA
Dear Mr. Landis:
On April 6, 2021, Michael Baker International delivered to you the Memorandum Cultural
Resources Identification Report for the Monte Vista Homes Fontana 47 Project, City of Fontana,
San Bernardino County, California. The report was prepared in support of the Monte Vista Homes
Fontana 47 Project (project), and reported the results of a South Central Coastal Information
Center (SCCIC) records search, literature and historical map review, archaeological and built
environment field survey, archaeological sensitivity analysis, and California Register of Historical
Resources (California Register) evaluation of one building. These efforts were completed to
determine whether the project area could result in significant adverse changes to historical
resources in accordance with the California Environmental Quality Act (CEQA).
As detailed in our memo report, no historical resources were identified which may be impacted
by the proposed project. Moreover, an analysis of the archaeological sensitivity of the project
area indicated that the archaeological sensitivity of the project area is low, primarily because of
past disturbances within the project area.
Subsequent to our April 6, 2021, memo report, the project description was altered. These
changes, which are detailed below, required a reassessment of our cultural resources impacts
analysis. As described below, the changes to the project description do not result in any impacts
to cultural resources.
UPDATES TO THE PROJECT DESCRIPTION
The project area is approximately 12.8 acres located on the west side of Catawba Avenue at the
terminus of Hibiscus Street, and on the east side of Poplar Street. The project proposes to develop
single-family residential units with associated road, utility, and water quality management
improvements. At the City’s request, additional parcels (APNs 0233-22-28, 0233-22-29, 0233-22-
60, 0233-22-63) have been included in the scope of the proposed General Plan Amendment and
Zone Change, although these parcels would not be developed into residential units as part of this
project. The project consists of two main components:
• Land use and zoning changes over approximately 12.8 acres
• Tentative tract map and design review for the construction of single-family dwellings on
9 acres
The remaining 3.8 acres would be left as-is with their respective dwellings. The residential
development would be supported by internal private streets, sewer and water access, a six-foot-
high perimeter block wall, six-foot-high white vinyl fencing and gates for interior lots, and the
installation of right-of-way improvements, including curb, gutter, and streetlights.
The major changes to the project description are noted in the table below. The original project
description included the construction of 47 residential units. The new project description calls for
the construction of an additional six units, resulting in a total of 53 new residential units. In
addition, a 0.4-acre park has been added to the design. The project footprint has not changed as
a result of these additional features; instead, the density of housing in the new design has
increased from 5.2 dwelling units (du) per acre to 6.0 du per acre.
Previous Project Description New Project Description
47 residential units 53 residential units (additional 6 units)
Density of 5.2 du/ac Density of 6.0 du/ac
Access on the west side of the site was
provided on Poplar Avenue
Access on the west side of the site provided on
Orchid Avenue
No parks/open space proposed 0.4-acre park proposed in the central portion
of the site
Construction dates from summer 2021 to
late 2022
Construction dates from summer 2022 to late
2023
Project was less than 52 units and would
generate less than 50 peak hour traffic trips
Project is 53 units and may generate additional
traffic scrutiny
Population increase of 194 persons Population increase of 218 persons (difference
of 24 persons)
The project requires a number of entitlements from the City of Fontana, including:
• General Plan Amendment No. 20-015 – request to change the land use from R-SF
(single-family residential) to R-M (multi-family residential)
• Zone Change No. 20-015 – request to change the zone from R-1 (single-family
residential) to R-2 (two-family residential)
• Tentative Tract Map No. 20358 (TTM20-006) – request to subdivide 9 gross acres into 47
single-family residential lots with private internal streets, streetlighting, sewer, water,
and perimeter block wall
• Design Review No. 20-028 – request to approve the architectural design and layout of
the proposed housing product
CULTURAL RESOURCES IDENTIFICATION
The methods and results of the SCCIC records search, literature and historical map review,
archaeological and built environment field surveys, archaeological sensitivity analysis, and
California Register evaluation are presented in detail in our April 6, 2021, memo. As described in
that memo, archival and literature research identified no historical resources within the project
area. One existing building that is historic in age was identified within the project area during the
survey, but the resource was found ineligible for inclusion in the California Register. The effort
identified no historical resources as defined by CEQA Section 15064.5(a) within the project area.
Archaeological sensitivity of the project area is low.
As described above, the changes to the project description do not result in a change to the project
footprint. More units and a park will be constructed within the project area, but these new
elements will all be located within the original project area. Because there are no historical
resources identified within the project area, there will be no impacts to known cultural resources.
FINDINGS AND RECOMMENDATIONS
The findings and recommendations of Michael Baker International’s memo dated April 6, 2021,
remain appropriate for the revised project description. No historical resources as defined by
CEQA Section 15064.5(a) are located within the project area. In the unlikely event that any
subsurface cultural resources are encountered during earth-moving activities, it is recommended
that all work within 50 feet be halted until an archaeologist can evaluate the findings and make
recommendations for treatment of the resource in compliance with Public Resources Code
Section 21083.2(i). Any human remains encountered during ground-disturbing activities shall be
treated in accordance with California Health and Safety Code Section 7050.5, which states that
no further disturbance shall occur until the County coroner has made a determination of the
origin and disposition pursuant to Public Resources Code Section 5097.98. In the event of an
unanticipated discovery of human remains, the County coroner shall be notified immediately. If
the human remains are determined to be prehistoric, the coroner shall notify the Native
American Heritage Commission, which shall determine and notify the most likely descendant
(MLD). The MLD shall complete the inspection of the site within 48 hours of notification and may
recommend scientific removal and nondestructive analysis of human remains and items
associated with Native American burials.
PREPARER QUALIFICATIONS
Marc A. Beherec, PhD, Principal Investigator/Senior Archaeologist, is a registered professional
archaeologist (#989598) and meets the Secretary of the Interior’s Professional Qualification
Standards for archaeology and history, and the Society for California Archaeology’s professional
qualification standards for Principal Investigator. Dr. Beherec has more than 20 years of
experience in cultural resources management, including project management, personnel
management, Native American consultation, archival research, laboratory analysis, ethnographic
and historical research, field survey, prehistoric and historical excavation, laboratory analysis,
and collections management. He has experience with cultural and tribal cultural resources issues
as they relate to CEQA and the National Environmental Policy Act. He directs the preparation of
cultural resources technical studies compliant with Section 106 of the National Historic
Preservation Act and CEQA, including studies documenting research, survey, testing, excavation,
monitoring, and evaluation for inclusion in the National and California Registers.
Sincerely,
Marc A. Beherec, PhD, RPA
Senior Archaeologist
Attachment:
Attachment 1 – Memorandum Cultural Resources Identification Report for the Monte Vista
Homes Fontana 47 Project, City of Fontana, San Bernardino County, California
Appendix D
Field Infiltration Test Results
MASTER CASE NO. 20-073
INITIAL STUDY
ZS Engineering 113 Tomato Springs, Irvine, CA 92618 C: 949-331-3232 info@zs-engineering.com
Page 1 of 3
July 9, 2020 ZS Engineering #200604
Steve Landis
Monte Vista Assets, Inc.
8628 Hillside Road
Alta Loma, CA 91701
Subject: Field Infiltration Test Results
Residential Tract of Single-Family Homes between Poplar Avenue and
Catawba Avenue, Tentative Tract No. 18905, City of Fontana, CA 92336
(APNs 0233-122-60, -63, -28 and -29)
Dear Mr. Landis:
In response to your request, ZS Engineering has prepared this report on findings from the
infiltration field tests at the proposed residential tract of single-family homes at the above
location.
1.1 Field Infiltration Tests
On June 20, 2020, after drilling and field logging, bore holes P-1 and P-2, each drilled to a
depth 15 feet below grade, were converted into infiltration test holes. Test locations are
shown in the attached exhibit. About 2 inches thick layer of ¾-inch gravel were poured at
the bottom of each hole and then a perforated 3-inch diameter (inside) HDPE pipe was
placed inside each hole. Annular spaces between the HDPE pipes and the test holes were
backfilled with ¾-inch gravel.
After preparation of the test holes, these were filled with water and two (2) consecutive
readings of water drop were taken, each at 25 minutes interval and each time the hole being
filled with water to the top. These initial readings yielded water level drops varying from 12
to 15 feet. This satisfied the Sandy Soil Criteria for infiltration test per the County
guidelines. Accordingly, field tests were conducted on the same day without any need for
overnight presoak.
Field Infiltration Test Results - Residential Tract ZS Engineering #200604
betn Poplar Ave & Catawba Ave, Fontana, CA July 9, 2020
Page 2 of 3
Test readings for each hole were taken over one hour period with 6 consecutive readings,
each reading at 10 minutes interval. Field tests began with each of the test holes filled with
water to the top. Water level drop for each time interval was recorded to a measurement
precision of 0.25 inch. Each hole was filled to the top after each 10-minute reading. The
drop that occurred during the final 10-minute interval was used to determine the infiltration
rate. Field infiltration test data sheets are presented hereafter. Evaluation of the design field
infiltration rates is discussed in Section 3.4. Test hole preparation and test procedures were
conducted in compliance with the San Bernardino County Guidelines for WQMP (see
References). Field test data and calculations are presented in Appendix C. After completion
of the infiltration test readings, the test holes were backfilled with the excavated soil
spoils up to the surface.
1.2 Field Infiltration Rate
Percolation rate from the field test data is related to, but not equal to, the infiltration rate.
While an infiltration rate is a measure of the speed at which water progresses downward
into the soil, the percolation rate measures not only the downward progression but the
lateral progression through the soil as well. This reflects the fact that the surface area for
infiltration testing would include only the horizontal surface while the percolation test
includes both the bottom surface area and the sidewalls of the test hole. In order to
convert the percolation rate into infiltration rate, the following equation, known as
Porchet Method, is recommended in the County Guidelines.
Where, It = Infiltration Rate, inch/hr
∆H = Water level drop over the time interval, inches
∆t = Time interval, minutes
r = Effective radius of the test hole (4 inches)
Havg = Average water head over the time interval, inches
Summary of the field test data and infiltration rates, evaluated using the above equation,
at both the test holes are presented in Table 1 below.
It = ∆H 60 r
∆t (r + 2Havg)
Field Infiltration Test Results - Residential Tract ZS Engineering #200604
betn Poplar Ave & Catawba Ave, Fontana, CA July 9, 2020
Page 3 of 3
Table 1 - Summary of the Field Test Data
Test Hole # Depth of
Hole (ft)
Final ∆H
(inch)
∆t
(min)
Final Havg
(inch)
Infiltration Rate,
It (inch/hr)
P-1 15 77.00 10 141.50 6.44
P-2 15 73.25 10 143.38 6.05
Infiltration rates at the test holes were found to fairly consistent, varying from 6.05 to
6.44 inch/hr. These rates are found to be within typical range of values for the sandy,
gravelly soils that were encountered at the test locations. For a preliminary design
estimate, we recommend a field infiltration rate of 6.0 inch/hr for subsurface soils for the
proposed buried infiltration chambers at the target location with bottom of chambers at
about 15 feet below the existing grade. Project Civil Engineer shall need to implement
appropriate factor of safety to this field infiltration rate for design of the infiltration
systems.
We appreciate this opportunity of service. If there are any questions, comments regarding this
report, please contact our office.
Respectfully submitted,
ZS ENGINEERING
Zafar Ahmed, PE, GE Geotechnical Engineer
Attachments:
Infiltration Test Hole Locations Map
Appendix A - Field Infiltration Test Data
Field Infiltration Test Results - Residential Tract ZS Engineering #200604
betn Poplar Ave & Catawba Ave, Fontana, CA July 9, 2020
APPENDIX A
Field Infiltration Test Data
Project Name:Residential Tract betn Poplar Ave & Catawba Ave, Fontana, CA Job No.:200604
Test Hole No.:P-1 (see Fig. 2, Site Plan & Exploration Map)
Depth of Test Hole (ft):15 Soil Description: 0 - 2': Silty f-c Sand (SM) w/ some fine gravel (up to 1/2")
2' - 10': Silty Sand to Sand, gravel size up to 1", less silts.
10' -15': Sandy Gravel (GP-GM), f-c sand, gravel up to 2"
Sandy Soil Criteria Test By:ZA Date:Presoak:No
Percolation Test By:ZA Date:
Time Passed
Interval ∆Sandy Soil
(min)(inch)Criteria
11:46 AM
12:11 PM
12:21 PM
12:46 PM
Time Total Elapsed
Interval, ∆t Time ∆H
(min)(min)(inch)
12:50 PM
1:00 PM
1:00 PM1:10 PM
1:10 PM
1:20 PM
1:20 PM1:30 PM
1:40 PM
1:50 PM
1:50 PM2:00 PM
80.50
10 60 0 ft.0.00 in 6 ft.5.00 in 77.00
10 50 0 ft.0.00 in 6 ft.8.50 in
89.00
10 40 0 ft.0.00 in 6 ft.11.25 in 83.25
10 30 0 ft.0.00 in 7 ft.5.00 in
6.00 in 102.00
10 20 0 ft.0.00 in 7 ft.11.00 in 95.00
Infiltration Test Data (Test Date 6/20/20)
Time
Water Level from Top
Initial Final
10 10 0 ft.0.00 in 8 ft.
120.00 Yes
2 25 0 ft 0.0 in 9 ft 2.00 in 110.00 Yes
1 25 0 ft 0.0 in 10 ft 0.00 in
Infiltration Test Data Sheet for P-1
6/20/20
6/20/20
Sandy Soil Criteria Test Data (Test Date 6/20/20)
Trial No.Time
Water Level from Top
Initial Final
Project Name:Residential Tract betn Poplar Ave & Catawba Ave, Fontana, CA Job No.:200604
Test Hole No.:P-2 (see Fig. 2, Site Plan & Exploration Map)
Depth of Test Hole (ft):15 Soil Description: 0 - 2': Silty f-c Sand (SM) w/ some fine gravel (up to 1/2")
2' - 10': Silty Sand to Sand, gravel up to 1", less silts.
10' -15': Sandy Gravel (GP-GM), f-c sand, gravel up to 2"
Sandy Soil Criteria Test By:ZA Date:Presoak:No
Percolation Test By:ZA Date:
Time Passed
Interval ∆Sandy Soil
(min)(inch)Criteria
11:36 AM
12:01 PM
12:05 PM
12:30 PM
Time Total Elapsed
Interval, ∆t Time ∆H
(min)(min)(inch)
12:55 PM
1:05 PM
1:05 PM1:15 PM
1:15 PM
1:25 PM
1:25 PM1:35 PM
1:37 PM
1:47 PM
1:47 PM1:57 PM
76.25
10 60 0 ft.0.00 in 6 ft.1.25 in 73.25
10 50 0 ft.0.00 in 6 ft.4.25 in
84.50
10 40 0 ft.0.00 in 6 ft.7.00 in 79.00
10 30 0 ft.0.00 in 7 ft.0.50 in
2.00 in 98.00
10 20 0 ft.0.00 in 7 ft.6.00 in 90.00
Infiltration Test Data (Test Date 6/20/20)
Time
Water Level from Top
Initial Final
10 10 0 ft.0.00 in 8 ft.
116.00 Yes
2 25 0 ft 0.0 in 9 ft 0.50 in 108.50 Yes
1 25 0 ft 0.0 in 9 ft 8.00 in
Infiltration Test Data Sheet for P-2
6/20/20
6/20/20
Sandy Soil Criteria Test Data (Test Date 6/20/20)
Trial No.Time
Water Level from Top
Initial Final