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HomeMy WebLinkAboutX2018-0315 - Misc®306- two vy) 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 1 SDG MV Q (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: The required irrigation system has been installed according to approved plans and specifications and if applicable, any prior approved irrigation system alternate es. 77 Yes _ No b. Sprinklers comply with ASABE/ICC 802-2014 Landscape Irrigation Sprinkler & Emitte Standard 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 boof tA",z !1110 liq PrinN a4go �go Signa License number Address qLA) 4'33-WS7 fo�r� lPo scat ,�6N►��,c r Telephone E-mail Address Landscape Design Professional's Stamp (If Appropriate) 919 ATTACHMENT 1 SCHEDULING PARAMETERS The landscape planted at 1806 Marapata Drive, Corona Del Mar CA 92625 has been installed on a drip irrigation system. The system runs 5 zones Monday, Wednesday, Friday and Sunday beginning at 6:00am. MAINTENANCE SCHEDULE The irrigation system should be inspected every 6 months to ensure no breakage has occurred in the lines and there are no leaks. Water intake for plants should be reviewed bimonthly and water needs adjusted accordingly. Please feel free to contact GDM Landscaping with any additional questions. July 3, 2019 Katie Crehan Vincent Builders, Inc. RE: Marapata Drive, Newport Beach, CA Dear Katie: Enclosed is the irrigation audit report forthe newly installed irrigation system at the Marapata Drive residence located at 1806 Marapata Drive, Newport Beach, 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 �°aScaPe Irrigdf�o a � J CLIA c4 r10N ASSO�1p. ARROYO IRRIGATION -- -- -- 27762 ANTONIO PARKWAY L 1.308, LADERA RANCH, CA 92694 ARROYOIRRIGATION.COM • TEL: 949.430.7030 GCOLLINS@ ARROYOIRRIGATION.COM Nun, 1806 MARAPATA DRIVE NEWPORT BEACH, CA I x 'A '-24 JULY 3, 2019 ARROYO IRRIGATION 27762 ANTONIO PARKWAY L 1 -308, LADERA RANCH, CA 92694 ARROYOIRRIGATION.COM • TEL: 949.430.7030 GCOLL]Ns@ ARROYOIRRIGATION.COM iia64 7 kq r`*.r 7I 14 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 Michael Wilkes, Laguna Beach California under Registered Landscape Architect Michael D. Wilkes, RLA 6094. Plans and detail drawings dated December 7, 2017 were provided for use during the audit. The irrigation system was observed on Wednesday, July 3, 2019. The installing contractor was present to manually activate the solenoid control valves using the controller to verify wire continuity and station identification. The weather during the audit was 72 degrees, sunny, and no wind. ARROYO IRRIGATION 27762 ANTONIO PARKWAY L 1-308, L.ADERA RANCH, CA 92694 �+ ARROYOIRRIGATION.COM • TEL: 949.430.7030 GCOLLINs@ ARROYOIRRIGATION.COM >al A new Rain Bird ESP-TM2 6 station irrigation controller is installed on the exterior of residence on the west side of the home. No rain sensor was observed onsite. 1) Evaluation: The electrical plug for the irrigation controller is plugged into an electrical adapter which is plugged into the home's outlet. Recommendation: Remove electrical adapters and plug irrigation controller directly into the GFI outlet. 2) Evaluation: The irrigation controller does not have a rain sensor installed and/or connected. Recommendation: Install and/or connect a rain sensor to the irrigation controller, per plan. 3) Evaluation: The irrigation controller is not a smart controller, per plan. Recommendation: Install the Rain Bird LNK WIFi module to convert the Rain Bird ESP-TM2 into a smart controller. ARROYO IRRIGATION 27762 ANTONIO PARKWAY L 1.308, L.ADERA RANCH, CA 92694 ARROYOIRRIGATION.COM • TEL: 949.430.7030 GCOLLINS@ ARROYOIRRIGATION.COM A single irrigation program is currently setup in the irrigation controller. Program (As of 7/3/191: Program: A Program Start Time: 6:00 am Program Days: Monday, Wednesday, Friday, Sunday Station Time (Minutes) 1 14 2 18 3 7 4 19 S 13 6 OFF Water Meter: Model: Neptune 1 T-10 Serial Number: 50251897 Current Reading: 0032.49 CIF Static Pressure: Pressure: 88 PSI ARROYO IRRIGATION 27762 ANTONIO PARKWAY L 1-308, LAIDERA RANCH, CA 92694 ARROYOIRRIGATION.COM • TEL: 949.430.7030 GCOLLINs@ ARROYOIRRIGATION.COM G e, The irrigation system is connected to the existing domestic water meter serving the residence. The plans call for a dedicated RP backflow device with a master valve and flow sensor. These items were not installed but backflow prevention is provided at the remote -control valves. As most residences do not have a dedicated RP backflow device with a master valve and flow sensor, the installed irrigation system will function per industry standard practices. It was observed during the audit that the (8) remote control valves specified on the irrigation plans were condensed down to (5) remote control valves. 1) Evaluation: Not all drip valves have filters and pressure regulators installed. Recommendation: Install drip filters and pressure regulators on all drip valves. ARROYO IRRIGATION ( 27762 ANTONIO PARKWAY L 1-308, LADERA RANCH, CA 92694 ARROYOIRRIGATION.COM • TEL: 949.430.7030 GCOLLINS@ ARROYOIRRIGATION.COM 2) Evaluation: Indoor rated wire nuts are installed on irrigation wire connections. Recommendation: Install outdoor rated waterproof wire connectors for irrigation wire connections. 3) Evaluation: Multiple AVB valves are installed below the highest irrigation emission device. Recommendation: Install AVB valves 12" above the highest point of an irrigation emission device, per local plumbing codes. 1) Evaluation: Drip flush valves and air/vacuum relief valves are not located on drip zones. Recommendation: Install drip flush valves and air/vacuum relief valves, per plan. 27762 ANTONIO PARKWAY L 1.308, L.ADERA RANCH, CA 92694 ARROYOIRRIGATION.COM • TEL: 949.430.7030 GCOLLINS@ ARROYOIRRIGATION.COM The installed irrigation system meets standard irrigation practices for residential irrigation systems. Owner shall provide some minor adjustments to be compliant with the City of Newport Beach's water efficient landscape ordinance. Owner indicated that landscape contractor will be making the recommended adjustments. Respectfully submitted, Garry Collins, ASIC, CLIA, Water Sense Partner Principal, Arroyo Irrigation, Inc CLIA Certification ID#: 73452 ��orape 1041., 00 1 a a CLIA Cq r'CN ASSOCN" ARROYO IRRIGATION 27762 ANTONIO PARKWAY L 1-308, LADERA RANCH, CA 92694 (e ARROYOIRRIGATION.COM • TEL: 949.430.7030 GCOLLINS@ ARROYOIRRIGATION.COM Email: GcoIlins(@Arrovolrrigation.com Office: 949.430.7030 Cell: 562.773.2722 Website: Arroyo I rrigation.co m Mailing Address: 27762 Antonio Parkway Suite 1-1-308, Ladera Ranch, CA 92694 ARROYO IRRIGATION 27762 ANTONIO PARKWAY L 1 -308, LADERA RANCH, CA 92694 ARROYOIRRIGATION.COM • TEL: 949.430,7030 GCOLLINs@ ARROYOIRRIGATION.COM R MCCARTHY CONSULTING, INC June 27, 2019 Clark Fritchie File No: 8140-10 c/o Vincent Builders, Inc. Report No: 115-8140 9183 EI Colorado Avenue Fountain Valley, California 92708-4400 Subject: Earthwork Observation/Testing Report Project Final Report Residential Construction Tract 2813, Lot 29 1806 Marapata Drive Corona del Mar, California Grading Permit No: X2018 - 0315 References: 1. R McCarthy Consulting, Inc., 2018, "Alternative Recommendations for Swimming Pool, Proposed Swimming Pool Construction, 1806 Marapata Drive, Corona del Mar, California," File No: 8140-10, Report No: 20180801, August 9. 2. R McCarthy Consulting, Inc., 2018, "Earthwork Observation/Testing Report, Proposed Residential Construction, 1806 Marapata Drive, Corona del Mar, California," File No: 8140-10, Report No: 20180219-4, March 14. 3. R McCarthy Consulting, Inc., 2017, "Response to City Review Comments, Proposed Residential Construction, Tract 2813, Lot 29, 1806 Marapata Drive, Corona del Mar, California," File No: 8140-01 Report No: 20171207-1, December 7. 4. R McCarthy Consulting, Inc., 2017, "Geotechnical Investigation, Proposed Residential Construction, 1806 Marapata Drive, Corona del Mar, California, File No: 8140-01, Report No: 20170203-1112, February 24, Revised March 29, 2017, and November 19, 2017). This report presents the results of our observation and testing services performed during the construction -phase activities for the property located at 1806 Marapata Drive in Corona del Mar, California. The purpose for our geotechnical services was to observe and document the earthwork operations including trench backfills and hardscape subgrades at the site. We understand that the earthwork is now completed and no further grading or earthwork is to be done. This report may, therefore, be considered to be a final report of earthwork observation and testing. Based on our observations, and review of the test results, it is our opinion that the earthwork was performed in substantial conformance with the City of Newport Beach and project grading requirements. 23 Corporate Plaza, Suite 150, Newport Beach, CA 92660 Phone 949 629 2539 1 Email info@rmccarthycon5ulting.com June 27, 2019 Site: 1806 Marapata Drive Irvine Terrace Corona del Mar, California Owner: General Contractor: Grading Contractor: Civil Engineer: Regulatory Agency: Clark Fritchie Vincent Builders, Inc. Tim Greenleaf, Inc. Toal Engineering, Inc. City of Newport Beach File No: 8140-10 Report No: R5-8140 Page: 2 Grading Plans: "Marapata House, Precise Grading Plan, Lot 29, Tract 2813, 1806 Marapata Drive, Newport Beach, California," prepared by Toal Engineering, Sheet C2, Nov. 17, 2017. Observation Period: February 8, 2018, through June 4, 2019 SITE LOCATION The subject property is located on the north side of Marapata Drive east of the intersection with Sabrina Terrace in Corona del Mar, California. GRADING AND EARTHWORK A. General The observation and testing reported herein includes the footing excavations for the house, garage, swimming pool and retaining walls. The slab subgrade, swimming pool excavation, retaining wall footing excavations, retaining wall subdrains, retaining wall backfill, trench backfills and hardscape subgrade were also observed and tested. B. Fill Placement and Comoaction Fill and backfill material consisted of on-site silty sand/clayey sand, and imported sand and gravel. Equipment used for compaction during the construction phase activities included hand -operated mechanical equipment and water hoses. Building pad and site grading was observed and tested as previously reported in Reference 2. R McCarthy Consulting, Inc, 23 Corporate Plaza, Suite 150, Newport Beach, CA 92660 June 27, 2019 File No: 8140-10 Report No: 115-8140 Page: 3 • Foundation and slab areas for the house, garage and patio structures were observed periodically during the construction and approved from a geotechnical standpoint. • Interior plumbing trenches were backfilled with compacted on-site soils. • Slab subgrade soils were checked for moisture content and determined to meet the pre-soaking recommendations in our referenced reports. • The retaining wall and planter wall footing excavations were observed prior to the installation of steel reinforcement and concrete and approved from a geotechnical standpoint. • The swimming pool excavation was observed prior to the installation of steel reinforcement and concrete and approved from a geotechnical standpoint. • Retaining wall backfill and drainage was observed and/or tested. The swimming pool walls were backfilled with 3/a inch gravel, which was moisture conditioned and compacted. • The utility trenches (sewer, gas, and water) were backfilled with on-site and imported granular soil. Trench backfills were observed and tested/probed and determined to be adequately compacted. • The front, rear, and side yard hardscape subgrade soils were observed periodically during construction. Hardscape subgrades consisted of on-site and imported granular soils and were determined to be adequately compacted. The maximum depth of backfill placed was approximately 9.5 feet adjacent to the swimming pool. Based on the results of our field density testing, it is our opinion that a minimum of 90 percent relative compaction was achieved within the areas tested. Density tests were performed in accordance with ASTM D6938 (the Nuclear Gauge Method). Areas of prepared subgrades, backfills and footing excavations were also probed to check compaction. Field Density Test Results are tabulated in Table 1, Results of Field Density Tests. The approximate locations of density tests are included on the Geotechnical Plot Plan, Figure 1. Representative samples of the site soils used as fill were returned to the laboratory for testing. Laboratory tests for maximum density and optimum moisture content were performed in accordance with ASTM D1557 (the Five Layer Method). The results are presented in Table 2, Laboratory Maximum Dry Density/Optimum Moisture Relationship. Testing was performed on representative areas to render a professional opinion as to the compaction of fill materials. Itis 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 fill materials are at 90 percent relative compaction. R McCarthy Consulting, Inc. 23 Corporate Plaza, Suite 150, Newport Beach, CA 92660 June 27, 2019 File No: 8140-10 Report No: 115-8140 Page: 4 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 fill and backfill materials placed at the site are considered suitable for the intended use. B. Drainage and Drainaoe Devices The performance of the planned foundation and improvements is dependent upon maintaining adequate surface drainage both during and after construction. The ground surface around foundations and improvements should be graded so that surface water will not collect and pond. The impact of heavy irrigation can artificially create perched water conditions. This may result in seepage or shallow groundwater conditions where previously none existed. Attention to surface drainage and controlled irrigation will significantly reduce the potential for future problems related to water infiltration. Irrigation should be well controlled and minimized. Seasonal adjustments should be made to prevent excessive watering. Sources of uncontrolled water, such as leaky water pipes or drains, should be repaired if identified. The Owner should be aware of the potential problems that could develop when drainage is altered through construction of retaining walls, paved walkways, utility installations or other various improvements. Ponded water, incorrect drainage, leaky irrigation systems, overwatering or other conditions that could lead to unwanted groundwater infiltration must be avoided. C. Subsequent Grading Ooerations 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 8, 2018 and June 4, 2019. This report R McCarthy Consulting, Inc. 23 Corporate Plaza, Suite 150, Newport Beach, CA 92660 June 27, 2019 File No: 8140-10 Report No: R5-8140 Page: 5 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 final site visit. We are not responsible for any changes in the conditions that may occur after that date and outside our purview. Our work is considered to be in accordance with the usual standards of the profession and with local practice. 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. Ro a &arthty,490 Geotechnical Engineer Registration Expires 3-31-20 Date Signed: 6/27/19 Attachments: Figure 1, Geotechnical Plot Plan 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 27, 2019 File No: 8140-10 Report No: R5-8140 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 2/8/18 Building Pad -2 1 14.1 114.3 91 2 2/8/18 Building Pad -1 2 13.5 113.6 92 3 2/8/18 Building Pad -4 1 12.3 115.3 91 4 2/9/18 Building Pad -3 1 13.8 116.0 92 5 2/9/18 Building Pad -2 1 12.4 114.0 90 6 2/9/18 Building Pad -1 1 12.6 116.8 93 7* 2/9/18 Building Pad -1 1 13.5 114.9 91 8 2/12/18 Building Pad -5 1 14.6 117.7 93 9 2/12/18 Building Pad -4 1 16.1 113.3 90 10 2/12/18 Building Pad FSG 1 16.5 116.1 92 it 2/12/18 Building Pad -3 1 15.6 113.6 90 12 2/12/18 Building Pad -3 1 14.9 113.6 90 13 2/13/18 Building Pad SG 1 13.2 114.6 91 14 2/13/18 Building Pad SG 1 16.6 113.9 90 15 2/13/18 Building Pad SG 1 14.7 116.2 92 16 2/13/18 Building Pad SG 1 12.8 117.6 93 17 2/13/18 Building Pad SG 1 13.0 117.3 93 18 2/15/18 Building Pad FSG 1 14.5 117.9 94 19 2/15/18 Building Pad FSG 1 15.0 116.8 93 20 2/15/18 Building Pad FSG 1 14.6 117.0 93 21 2/15/18 Building Pad FSG 1 12.5 120.8 96 22 2/15/18 Building Pad FSG 1 13.4 119.0 94 23 2/15/18 Building Pad FSG 1 12.6 120.3 95 24 4/1/19 Wall Footing/ Hardscape SG 1 19.1 114.2 91 25 4/1/19 Wall Footing/ Hardscape SG 1 17.9 117.3 93 26 4/1/19 Wall Footing/ Hardscape SG 1 22.0 114.7 91 Notes: *Indicates Sand Cone Test; all other tests Nuclear Gauge Method Depth indicated is below finished pad grade FSG = Finished Subgrade FG = Finished Grade SG= Subgrade RT=Retest R McCarthy Consulting, Inc. 23 Corporate Plaza, Suite 150, Newport Beach, CA 92660 June 27, 2019 File No: 8140-10 Report No: 115-8140 Page: 7 TABLE 2 — LABORATORY MAXIMUM DRY DENSITY/ OPTIMUM MOISTURE RELATIONSHIP ASTM D1557 Soil Description Optimum Moisture Maximum Dry Type Content (%) Density (pct? 1 Red -Brown Silty SAND/clayey SAND 126 11 2 Red -brown to dark brown clayey SAND 124 11 R McCarthy Consulting, Inc. 23 Corporate Plaza, Suite 150, Newport Beach, CA 92660