Attachment 5d
U.S DEPARTMENT OF AGRICULTURE
NATURAL RESOURCES CONSERVATION SERVICE
CALIFORNIA
PRACTICE REQUIREMENTS
449 - irrigation water management
(Irrigation System Evaluations)
For: Business Name
Job Location
County RCD Farm/Tract No.
Referral No. Prepared By Date
IT SHALL BE THE RESPONSIBILITY OF THE OWNER TO OBTAIN ALL NECESSARY PERMITS AND/OR RIGHTS, AND TO COMPLY WITH ALL ORDINANCES AND LAWS PERTAINING TO THIS PRACTICE.
Implementation of this IWM 449 activity should be in accordance with the following:
1. Practice Specifications 449
2. Special Requirements:
· A qualified consultant will be hired to perform a detailed irrigation system and management evaluation.
· The selected evaluator must have experience in conducting detailed irrigation system evaluations. Producer is encouraged to require evaluator to follow procedures developed by Cal Poly Irrigation Training and Research Center.
· Evaluator should deliver a report to the producer within 7 business days of the irrigation event evaluated and shall include the following information and findings:
o A narrative describing how the current system is operated.
o A map indicating where any pressures, flow measurements or other readings were taken.
o Graphical display of water destinations (runoff, rootzone storage, estimated evaporation and deep percolation) during an irrigation event.
o Results of computed distribution uniformity (DU) and estimated irrigation application efficiency (AE).
o Narrative discussion of alternatives for improving DU and irrigation scheduling (timing and amount) strategy.
o Provide NRCS with a copy of the report.
PRACTICE APPROVAL:
Job Classification: (Ref: Section 501 NEM)
Show the limiting elements for this job. This job is classified as, Class ______
Limiting elements: Units
Area Benefited ac
Approved by: Date:
LANDOWNER's/OPERATOR'S ACKNOWLEDGEMENT:
The landowner/operator acknowledges that:
a. He/she has received clear information of how an “irrigation system evaluation” should be conducted and understands what is to be delivered to NRCS for certification of completion.
Accepted by: Date:
practice completion:
I have reviewed producer’s documentation, and have determined that the IWM activity as applied does meet program requirement.
Completion Certification by:
/s/ Date
July 1996