HomeMy WebLinkAboutX2020-2278 - Misc (6)X2,oal1-aa1$
Appendix E
LANDSCAPE INSTALLATION CERTIFICATE OF COMPLETION
I hereby certify that:
(1) 1 am a professional appropriately licensed in the State of California to provide
professional landscape design services.
(2) The landscape project for the property located at 218 Goldenrod Ave,
Corona del Mar CA 92625 (provide street
address or parcel number(s)) was installed by me or under my supervision.
(3) The landscaping for the identified property has been installed in substantial
conformance with the approved Landscape Documentation Package and complies with
the requirements of the City of Newport Beach Water Efficient Landscape Ordinance
(Municipal Code Section 14.17) and the City of Newport Beach Standards for
Implementation of the City of Newport Beach Water Efficient Landscape Ordinance for
the efficient use of water in the landscape.
(4) The following elements are attached hereto:
a. Irrigation scheduling parameters used to set the controller;
b. Landscape and irrigation maintenance schedule;
c. Irrigation audit report; and
d. Soil analysis report, if not submitted with Landscape Documentation Package,
and documentation verifying implementation of the soil report
recommendations.
(5) The site installation complies with the following:
a. The required irrigation system has been installed according to approved plans
and specifications and if applicable, any prior approved irrigation system
alternatives.
X Yes No
b. Sprinklers comply with ASABE/ICC 802-2014 Landscape Irrigation Sprinkler &
Emitter Standard.
X Yes _ No
(6) The information I have provided in this Landscape Installation Certificate of
Completion is true and correct and is hereby submitted in compliance with the City of
Newport Beach Design Standards for Implementation of the City of Newport Beach
Water Efficient Landscape Ordinance.
33
nyc
June 14, 2022
Silvia Vargas
Hiebsch Custom Homes
9183 El Colorado Ave
Fountain Valley CA 92708
RE: 218 Goldenrod Residence
Dear Silvia:
Enclosed is the irrigation audit report for the newly installed irrigation system at the 218 Goldenrod
Residence located in Corona Del Mar, Ca.
Please let us know if you have any further questions or concerns.
Sincerely,
Garry Collins, ASIC, CLIA, Water Sense Partner
Principal, Arroyo Irrigation, Inc
CLIA Certification ID#:73452
��ocape Jrrimow.
gyp►a
CLIA
CgrJON ASS���P
ARROYO IRRIGATION
27762 ANTONIO PARKWAY L 1-308, LADERA RANCH, CA 92694 1- ���' 0i
S°
ARROYOIRRIGATION.COM • TEL: 949.430.7030
GCOLLINS@ ARROYOIRRIGATION.COM
TRODUICTWN
The purpose of the irrigation audit is to evaluate the installation and performance of the newly installed
irrigation system with respect to its efficient application of water as a condition for final building
permits.
The irrigation system was designed by M.D. Wilkes Design and Consulting, Laguna Beach California
under Registered Landscape Architect Michael Wilkes, RLA 6094. Plans and detail drawings dated
August 2018 were provided for use during the audit.
The irrigation system was observed on Tuesday, June 7, 2022. The general contractor was present
during the audit.
The weather during the audit was 72 degrees, sunny, and no wind.
ARROYO IRRIGATION _
27762 ANTONIO PARKWAY L 1.308, LADERA RANCH, CA 92694�a° 3'�I
ARROYOIRRIGATION.COM • TEL: 949.430.7030
GCOLLINS@ ARROYOIRRIGATION.COM
The following establishment program was entered into the controller. Three months later, the
homeowner is to program the maturity program into the controller.
Program (As of 6/7/22):
Program: A
Program Start Time: 7:00 am and 11:00 pm
Program Days: Monday, Tuesday, Wednesday, Thursday, Friday, Saturday and
Sunday
Station
Time
(Minutes)
Station
Time
(Minutes) '
1
10
25
2
10
26
3
10
27
4
10
28
5
10
29
6
4
30
7
10
31
8
10
32
9
33
10
34
11
35
12
36
13
37
14
38
15
39
16
40
17
41
18
42
19
43
20
44
21
45
22
46
23
47
24
48
ARROYO IRRIGATION
_; s
27762 ANTONIO PARKWAY L 1-308, LADERA RANCH, CA 92694
ARROYOIRRIGATION.COM • TEL: 949.430.7030
GCOLLINSC ARROYOIRRIGATION.COM
NRR9GAi f0 Akhlr) C3- /' GKM-S
The irrigation system was observed to have the following issues:
Code Compliance:
Irrigation Controller Rain Sensor:
The GUFFeAtly system does n9t have a 4n senseF onstalled. GantFaeteFtq install Raip
NFd 0414' AO '^'„ "^„'„• „- equal. The contractor installed a rain sensor, connected to the irrigation
Irrigation Point of Connection Equipment:
(;GRtFaeteF to onstal! eEf .4pFneRt peFp'aa_o, _`�Ql The contractor installed a master valve and flow
sensor per plan.
ARROYO IRRIGATION
27762 ANTONIO PARKWAY L 1 ^308, LADERA RANCH, CA 92694
<
ARROYOIRRIGATION.COM • TEL: 949.430.7030
GCOLLINS@ ARROYOIRRIGATION.COM
Email: GcollinsC@Arrovolrrigation.com
Office: 949.430,7030
Cell: 562.773.2722
Website: Arroyolrrigation.com
Mailing Address: 27762 Antonio Parkway Suite L1-308, Ladera Ranch, CA 92694
ARROYO IRRIGATION
27762 ANTONIO PARKWAY L 1.308, LADERA RANCH, CA 92694 � x n l
ARROYOIRRIGATION.COM • TEL: 949.430.7030 'G't"—"
GCOLLINS@ ARROYOIRRIGATION.COM
CONSULTING
April 22, 2019
Mr. Andy Ajluni
616 8"' Street
Huntington Beach, California 92648
Subject: Interim Grading Report
Residential Construction
218 Goldenrod Avenue
Corona del Mar, California
Plan Check No: 2267-2018
INC
File No: 8268-10
Report No: 20190417-2
References: R McCarthy Consulting, Inc., 2018, Geotechnical Investigation, Proposed Residential
Construction, 218 Goldenrod Avenue, California, APN: 052-061-01, File No. 8268-
00, Report No. 20180921-1, dated September 21.
The basement building pad at the subject site was excavated following installation of temporary
shoring and bracing. Excavations exposed competent silty sand terrace deposits as anticipated
in the referenced reports. No additional over -excavation or compaction was necessary as part of
the basement excavation. Based on our observations, it is our opinion that, from a geotechnical
standpoint, the grading for the basement portion of the site has been completed in accordance
with our recommendations, the requirements of the City of Newport Beach and the approved
Precise Grading Plan.
Memos for the shoring piles were submitted previously.
Based upon field geologic observations, it is our opinion that grading and excavation described
herein was accomplished in accordance with the project requirements and the grading
requirements of the City of Newport Beach. Based on the observations as described herein, the
exposed terrace deposits within the basement building pad area at the site are considered
suitable for the intended use. The on -site soils were determined to have a very low expansion
potential.
The upper at -grade level building pad area is not completed since the lower level walls are not
yet constructed and backfilled. This report is therefore an interim report of the planned site
grading.
23 Corporate Plaza, Suite 150, Newport Beach, CA 92660
Phone 949 629 2539 1 email info@rmccarthyconsulting.com
R MCCARTHY
CONSULTING, INC
June 9, 2022
C/O Hiebsch Custom Homes
9183 El Colorado Ave
Fountain Valley, CA 92708
Subject: Earthwork Observation/Testing Report
Project Final Report
Residential Construction
218 Goldenrod Avenue
Corona del Mar, California
Dcforani•oc•
File No: 8268-10
Report No: R5-8268
Grading Permit No: X2020-2278 (formerly X2018-2832)
June 9, 2022
Site:
Owner:
218 Goldenrod Avenue
Corona del Mar, California
Don Briscoe
General Contractor: Hiebsch Custom Homes/ Vincent Builders, Inc.
Grading Contractor:
Civil Engineer:
PHD Demo and Grading
Toal Engineering, Inc.
Structural Engineer: Scott Wallace, SE
Regulatory Agency City of Newport Beach
File No: 8268-10
Report No: R5-8268
Page: 2
Grading Plans: "Precise Grading Plan for Ajluni Residence, Lot 29, Tract 2813, 218
Goldenrod, Corona del Mar, Orange County, CA," prepared by Toal
Engineering, Inc., dated 12/4/18, Sheets 1-7.
Basement Plans: "Basement Foundation Plan, 218 Goldenrod, Corona del Mar, CA,"
prepared by Scott Wallace, SE, dated 9/11/18, Sheet S-2
Observation Period: February 21, 2019, through June 1, 2022
SITE LOCATION
The subject property is located on the southeast side of Goldenrod Avenue at the south corner
of the intersection of Bayview and Goldenrod in Corona del Mar, City of Newport Beach,
California as shown on the Location Map, Figure 2.
GRADING AND EARTHWORK
A. General
The observation and testing reported herein includes the earthwork activities that were
observed and tested subsequent to the site grading and backfill reported in Reference 1.
B. Earthwork Activities
Fill and backfill material consisted of on -site silty sand, imported silty sand and gravel.
Equipment used for compaction included track loaders, hand operated mechanical
equipment and water hoses.
R McCarthy Consulting, Inc.
23 Corporate Plaza, Suite 150, Newport Beach, CA 92660
June 9, 2022
File No: 8268-10
Report No: R5-8268
Page: 3
• The grading and excavation for the basement building pad, at -grade garage
building pad, basement wall backfills and exterior site grading were observed
and tested as previously reported in Reference 1.
• Observations of caisson drilling for temporary shoring and bracing were
previously reported in Reference 1.
• Foundation and slab areas for the basement and garage structures were
observed during the construction and approved from a geotechnical standpoint.
• Interior and exterior plumbing trenches, including the sewer trench, were
backfilled with compacted on -site and/or imported sand or gravel.
• The utility trench backfills, including the water, gas, and common utility lines,
were backfilled with compacted on -site and/or imported sands.
• Site wall and retaining wall footings were observed during the construction and
approved from a geotechnical standpoint.
• Site retaining walls were backfilled with compacted on -site and/or imported
sands and gravel.
• Area drain trenches were backfilled with shading sand and/or on -site soil.
• Grading of the exterior hardscape subgrade areas were included as part of the
wall backfill reported in Reference 1. Hardscape subgrades were also
subsequently observed, tested and probed to check compaction.
Based on the results of our observations and testing, it is our opinion that adequate
compaction was achieved within the areas observed and tested. Density tests were
performed in accordance with ASTM D1556 (Sand Cone Method) and/or ASTM D6938
(the Nuclear Gauge Method). Areas of prepared subgrades, backfills and footing
excavations were also probed to check compaction. The maximum depth of trench
backfill placed was approximately 3 feet for the sewer.
Testing was performed on representative areas to render a professional opinion as to
the compaction of fill materials. It is our opinion that sufficient testing was performed to
arrive at the conclusions stated herein; however, this is an opinion and is not a warranty
that all backfill materials are at 90 percent relative compaction.
CONCLUSIONS AND RECOMMENDATIONS
A. General
Based upon field observations and test results, it is our opinion that grading and
compaction described herein was accomplished in accordance with the project
requirements and the grading requirements of the City of Newport Beach. Field density
testing indicated that a minimum of 90 percent relative compaction was achieved at the
locations tested.
Based on the observations and testing, the described backfills, trench backfill materials
and hardscape subgrade soils at the site were adequately compacted and are considered
suitable for the intended use. The indicated foundation excavations were approved in
accordance with our recommendations.
R McCarthy Consulting, Inc.
23 Corporate Plaza, Suite 150, Newport Beach, CA 92660
June 9, 2022
B. Drainage and Drainage Devices
File No: 8268-10
Report No: 115-8268
Page: 4
Maintenance of drainage devices and drainage improvements is important to their long-
term performance. The following is a list of suggested procedures provided as a guide
for maintenance.
• Graded berms, swales, area drains, and slopes are designed to carry surface water
from pad areas and should not be blocked or destroyed. Water should not be allowed
to pond in pad areas.
• Sources of uncontrolled water, such as leaky water pipes or drains, should be
repaired if identified.
• Subdrain outlets, if present, should be maintained to prevent burial or other blockage,
• Roof drains should collect water into a tight -lined drainage system of area drains.
When area drain systems are not feasible, roof drain water should be diverted by
swales and sloping ground to approved outlet areas. Where planters or unimproved
ground are located next to building foundations or slab -on -grade construction, open
roof drain outlets should be extended away from the structure. Outlets and infiltration
of roof water next to structures is not acceptable and should be maintained by
drainage devices.
• Area drain inlet grates should be properly installed and maintained. The inlets need to
be properly located at lower grade collection points around yard areas. The grate
should be installed low enough to quickly transfer collecting water into the area drain
pipe system. It should also be installed high enough to not be easily buried, silted
over or choked out by vegetation.
• Drainage inlet grates should be regularly inspected and cleaned/replaced as
necessary to allow free flow of water into the drain system while effectively blocking
larger detritus from entering risers and flow pipes.
• Area drain pipes should be periodically checked for blockage and cleaned as
necessary.
• Landscape grades should be maintained or improved to allow efficient drainage to
approved surface water outlets, BMP devices and/or the storm drain system.
Modifications to designed or existing drainage grades should be made as necessary
when ponds of excess water, standing water, low flows, etc. are noticed. An
experienced landscape contractor, landscape architect and/or civil engineer should be
consulted, if necessary, to provide recommendations for drainage improvements.
• As yard improvements are made to existing residential properties, it is common for
unlicensed landscape contractors, laborers or the homeowner to alter the flow
patterns that were designed for site drainage. Such actions however can be harmful
to the property. Adverse infiltration and surface flows may cause damage to
foundations, slabs, concrete hardscape, slopes, neighboring properties, etc. and
result in repair costs or litigation. Adverse or incorrectly modified drainage may also
become a source of unwanted pollutants into the ocean or storm drain system.
Attention to surface drainage and controlled irrigation will significantly reduce the
potential for future problems related to unwanted water infiltration.
R McCarthy Consulting, Inc.
23 Corporate Plaza, Suite 150, Newport Beach, CA 92660
June 9, 2022
File No: 8268-10
Report No: R5-8268
Page: 5
Irrigation of on -site vegetation should be properly controlled. Excessive watering
should be avoided not only to save water, but to protect property improvements.
Seasonal adjustments should be made to prevent excessive watering.
Broken sprinkler heads, broken pipes, leaks at joints, or other breaches should be
immediately repaired when identified.
C. Subsequent Grading Ogeratlons
Prior to the commencement any future on -site earthwork we recommend to the Owner
that a geotechnical engineer be notified to provide appropriate recommendations and
observation and testing services as required.
Our description of grading operations, as well as observations and testing, has been limited to
those grading operations observed between February 21, 2019 and June 1, 2022. This report
does not include line and grade survey results. Elevations and locations used in this report are
estimated based on field surveys done by others.
The opinions rendered apply to conditions in the subject areas observed by us as of the date of
our indicated site visits. We are not responsible for any changes in the conditions that may
occur after that date and outside our purview. Our work was provided consistent with and
limited to the standard of care applicable to such services, which is that services were
consistent with the professional care and skill ordinarily provided by consultants practicing in
the same or similar locality under the same or similar circumstances. No other warranty is
expressed or implied.
The opportunity to be of service is appreciated. If you have any questions, please call.
Respectfully submitted,
R MCCARTHY CONSULTING, INC.
Robert J. McCarthy, G.E. 2490
Geotechnical Engineer
Registration Expires 3-31-24
Date Signed: 06/09/2022
Attachments: Figure 1 - Geotechnical Plot Plan
Figure 2 — Location Map
Table 1— Results of Field Density Tests
Table 2 — Laboratory Maximum Dry Density/Optimum Moisture Relationship
R McCarthy Consulting, Inc.
23 Corporate Plaza, Suite 150, Newport Beach, CA 92660
June 9, 2022 File No: 8268-10
Report No: R5-8268
Page: 6
TABLE 1 - RESULTS OF FIELD DENSITY TESTS
Test
No.
Test Date
Location
Depth
(feet)
Soil
Type
Moisture
Content
(%)
Dry
Density
(pcf)
Relative
Compaction
1*
5/23/19
RW Backfill
8
1
10.0
106.7
90
2*
5/23/19
RW Backfill
6
4
9.2
114.9
94
3*
5/23/19
RW Backfill
3
4
10.0
117.0
96
4*
5/24/19
RW Backfill
4
4
9.1
114.9
94
5*
5/28/19
Building Pad
3
4
8.0
120.0
98
6*
5/29/19
Building Pad
2
4
8.1
116.3
95
7*
5/30/19
Building Pad
1
4
9.1
116.8
96
8*
5/31/19
Building Pad
2
4
9.8
116.0
95
9*
6/3/19
Building Pad
1
4
9.9
115.7
95
10*
6/5/19
Building Pad
SG
3
11.1
112.1
96
11*
6/6/19
Building Pad
SG
3
11.8
114.6
98
12*
6/6/19
RW Backfill
1
3
11.9
113.6
97
13*
5/6/19
RW Backfill
SG
3
11.2
114.5
98
14*
6/18/19
Sewer Trench
Backfill
2
3
10.6
111.7
95
15*
6/18/19
Sewer Trench
Backfill
SG
3
11.4
111.9
96
16*
4/15/22
Hardscape
Subgrade
SG
2
9.5
110.8
92
Notes: *Indicates Soil Sand Cone Test Method; all other tests Nuclear Gauge Method
Depth indicated is below finished pad grade
SG = Subgrade RW = Retaining Wall Backfill
R McCarthy Consulting, Inc.
23 Corporate Plaza, Suite 150, Newport Beach, CA 92660
June 9, 2022
File No: 8268-10
Report No: 115-8268
Page: 7
TABLE 2 — LABORATORY MAXIMUM DRY DENSITY/
OPTIMUM MOISTURE RELATIONSHIP (ASTM D1557)
Soil
Type
Description
Optimum
Moisture
Content (%)
Maximum Dry
Density (pcQ
1
Brown Silty Sand
10.0
118.0
2
Olive brown, Silty Sand
10.5
120.0
3
Whitish brown Silty Sand (import)
11.5
117.0
4
Brown Silty Sand
9.5
122.0
R McCarthy Consulting, Inc.
23 Corporate Plaza, Suite 150, Newport Beach, CA 92660
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TOAL ENGINEERING, INC.
CIVIL ENGINEERS AND LAND SURVEYORS
139 Avenida Navarro, San Clemente, CA 92672
Tel: (949) 492-8586 • www.toalengineeiing.com
January 12, 2022
City of Newport Beach
P.O. Box 1768
Newport Beach, CA 92658-8915
Attention: City Inspector
Subject: Line & Grade certification
Reference Project: Combination Permit: X2020-2278 (Project: 2267-2018)
Tract 2813, Lot 29
218 Goldenrod
Inspector:
Please be advised that this office has field checked line and grade for the 4-inch diameter
drain lines located adjacent to the rights -of -way at the Easterly and Northerly yards, and the
6-inch diameter drain lines located adjacent to the rights -of -way at the Northerly and Westerly
yards. We found these drain lines to be in substantial conformance with those shown on the
approved grading plan.
Respectfully,
AT/Is
18115 d1 01
HIEBSCH
CUSTOM HOMES
General Contractor
License # 967286
Irrigation and Maintenance Schedule
Landscape Property: 218 Goldenrod Ave, Corona del Mar CA 92625
First two weeks we need to water the plants every day for 30 minutes each
station to establish the root system.
Following the two weeks, we can decrease to every other day
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