HomeMy WebLinkAboutX2019-3242 - LandscapeIrrigation Inspection Affidavit
Irrigation Plan No: Dolotta - Suh Residence_______________________________
Project Name: 424 Rivera Terrace Corona Del Mar CA 92625________
Irrigation Plan Designer: MDZA Landscape Architecture 949.673.0800________
Field Inspector CLIA : __Big Picture Landscape - Michael McMillen 714.394.6126________
Date (s) of Inspection: 12/29/2022 and 1/4/2023
This project was inspected within the limits of customary access for compliance with the approved
irrigation plans on file in City Planning. At least two (2) inspections were conducted. The findings are as
follows.
Date Inspection: 12/29/2022
A. Inspections during construction to check mainline in open trench: Yes No
1. Location of mainline conforms to as-built plan _X_ ___
2. Size of main line conforms to plan _X_ ___
3. Depth of mainline conforms to plan _X_ ___
4. Main line conditions is undamaged _X_ ___
5. Main line pressure tested with water and meter to check for visible leaks _X_ ___
6. Specific observations attached if needed _X _ ___
Date Inspection: 1/4/2023
B. Inspections after completion of system installation prior to sodding: Yes No
1. Irrigation POC has isolation valve _X_ ___
2. System components (i.e., controller, backflow, rain sensor, etc.) _X_ ___
3. Drip line GPH and spacing as specified _X_ ___
4. System activated for observation of compliance _X_ ___
5. Each station complies installed per plan _X_ ___
6. Matched precipitation rates provided by zone _X_ ___
7. As-built plan provided to owner _X_ ___
8. Specific observations attached as needed _X_ ___
Summary of irrigation review: Pass . This project In Compliance as all Items listed on
punch list have been addressed.
I hereby certify that I am qualified to submit this irrigation inspection affidavit based on
the qualification indicated below:
Certified Landscape Irrigation Auditor Certified by The Irrigation Association. CLIA
California #014256 IA. 703.536.7080
Respectfully,
Michael McMillen
Certified Irrigation Auditor #014256
Big Picture Landscapes
_________________________
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LANDSCAPE IRRIGATION AUDIT REPORT
PROJECT NAME: Dolotta-Suh Residence 424 Rivera Terrace Corona Del Mar, CA
Landscape Architect: MDZA Landscape Architecture 949.673.0800
CERTIFIED LANDSCAPE IRRIGATION AUDITOR (CLIA)
BIG PICTURE LANDSCAPE
Michael McMillen / 714.394.6126 / Bigpicturelandscape@gmail.com Certified Irrigation Auditor #014256
All of the hydrozones on the irrigation systems were evaluated with a visual inspection. As per your request,
we evaluated the irrigation systems in accordance with the California Model Water Efficient Landscape
Ordinance (MWELO).
SUMMARY
This audit was conducted to inspect the overall site irrigation systems within the limits of construction. The
irrigation systems are new systems utilizing POTABLE water.
IRRIGATION PLANS:
Each hydrozone identified on the plans were executed in the field, (Total valve qty. 17). Each system layout,
components and functionality have met all the requirements of the Irrigation Plans.
MWELO:
The California Model Water Efficient Landscape Ordinance has been adopted by the City as the standard for
new construction and irrigation installations based on AB1881.
UNIFORMITY:
The overhead spray lawn areas were operational with the controller, low efficiency nozzles installed and a 24”
drip line buffer edge adjacent to paving. Since the dripline is subterranean and the planting material is already
installed and would be damaged if the dripline were unearthed, a drip catch can test was not performed. In
lieu of the catch can test, the standard 90% efficiency for pressure compensating drip & low-flow irrigation per
the Irrigation Association’s Landscape Irrigation Auditor, 3rd edition book was used for the report.
Shrub ZONES / STATION A1-A14
· Irrigated Area: Zones separated based on Full sun South/ West side of project.
· Plant Material: Shrubs - Low water
· Plant Condition: Traditional
· Microclimate: Full Sun
· Soil Category: Silty Clay Loam
· Root Depth: Approximately 4”-8”
· Slope: Overall site 2:1
· Compaction: yes
· Runoff: No runoff observed
· Standing Water: None observed (some from heavy rain – not from irrigation)
· Hydrozone Separation: Yes
· Mulch in Beds: Yes / additional requested
· Pressure Regulation: Not required / Isolation valve installed per plan
· Backflow: installed per plan
· Controller: Rain Bird ESP-LXME controller and wireless weather sensor / rain shutoff
· Valves: RB PEB Installed on S,E side rear corner / Front W side of house.
· Emitter Type: RB XFS 6-12 (.6 gph @ 12” o.c. row spacing @ 12”-18” o.c.) RB 1401 / RWS
· Max Flow: 5.5 / 8.0 GPM
· Distribution Uniformity: .90 / .77
· Precipitation Rate: 0.6 / 1.58
Punch list Items: 12/29/2022 (Compliance based on the following corrects during the maintenance period)
Zone Audit Conclusion: PASS, project IS within compliance to begin maintenance.
The irrigation systems were evaluated and based on the Irrigation Association Audit rules/guidelines and
MWELO requirements.
LANDSCAPE and IRRIGATION MAINTENANCE SCHEDULES:
MINIMUM RECOMMENDED WEEKLY MAINTENANCE SCHEDULE
DURING PRIME GROWING SEASON AND PEAK USER DEMAND
(MAINTENANCE TASKS TO BE PERFORMED ON A WEEKLY BASIS.)
TASKS:
· RECORD THE IRRIGATION USEAGE EVERY WEDNESDAY, AND THEN COMPARE
ACTUAL USAGE VS. FLOW SENSOR RECORDED FLOW RATES.
· CHECK THE CONTROLLER DAILY FLOW SUMMARIES TO SEE ANY DRIP VALVE WITH
RECORDED FLOWS LOWER THAN LISTED ON THE CONTROLLER PROGRAM.
· CHECK THE CONTROLLER ALERTS FOR ANY HIGH FLOW ALERTS, IRRIGATION
ISSUES, ETC.
· CHECK ENTIRE IRRIGATION SYSTEM TO FIND AND REPAIR DAMAGE OR BROKEN
DRIP EMITTER(S) WITH SAME TYPE AND MANUFACTURER.
· REVIEW THE CONTROLLER RECORDS TO VERIFY EACH DRIP VALVE IS GETTING THE
PRPPER WATER ALLOCATION BASED UPON THE PROGRAMMING, AND IF NOT THEN
ADJUST THE IRRIGATION PROGRAMMING TO FIX THE UNDER OR OVER WATER
ISSUES.
· CHECK THE IRRIGATION SCHEDULE HAS BEEN ADJUSTED PER EACH STATION ON
EVERY CONTROLLER BASED UPON THE BASE IRRIGATION SCHEDULES INCLUDED.
ADJUST SCHEDULES AS REQUIRED FOR ANY CLIMATE CHANGES, RE-SODDING,
WINTER OVERSEEDING, FERTILIZER SCHEDULE, PRUNING SCHEDULE, OR ANY
OTHER EVENT THAT MIGHT CAUSE THE PLANT MATERIAL ADDITIONAL IRRIGATION
· SIPHON / INSPECT TREE SIPHON TUBES FOR WATER.
MINIMUM RECOMMENDED MONTHLY MAINTENANCE
SCHEDULE
(MAINTENANCE TASKS TO BE PERFORMED ON A MONTHLY BASIS, IN ADDITION TO
WEEKLY MAINTENANCE TASKS.)
TASKS:
· CHECK AND ADJUST ALL DRIP EQUIPMENT (DRIP REMOTE CONTROL VALVES, AND
MASTER VALVE PRESSURE REGULATOR).
· INSPECT EACH IRRIGATION STATION VIA THE CONTROLLER MANUAL OPERATION
FOR MINIMUM 3 MINUTES FOR EACH STATION ON EVERY CONTROLLER TO CHECK
FOR PROPER COVERAGE, AND NO SIGNS OF ANY IRRIGATION PROBLEMS. IF
PROBLEMS ARE DISCOVERED, THEN REPAIR ANY DAMAGED OR CLOGGED
EMITTERS.
· CHECK THE PRESSURE ON THE LAST SPRAY HEAD OR DRIP EMITTER ON EACH
STATION TO MAKE SURE IT MAKES THE DESIGN PRESSURES LISTED ON THE
IRRIGATION LEGEND.
· REVIEW ALL THE WEEKLY TASKS HAVE BEEN COMPLETED EACH WEEK.
LANDSCAPE and IRRIGATION Maintenance Schedule / Run Time
PROJECT NAME: Dolotta-Suh Residence 424 Rivera Terrace Corona Del Mar, CA
Landscape Architect: MDZA Landscape Architecture 949.673.0800