Em4885 irrigation management practices to protect ground water

Local Area-wide Information
Information that is specific to an agricultural region will be helpful in developing a
comprehensive water quality program for a specific site. The local Conservation District,
Soil Conservation Service Office, or Cooperative Extension office will have this type of
information. This might include:
1. Results of susceptibility analyses for erodability or leachability of common, specific
combinations of nutrients or chemicals, soils, and terrain in the area.
2. Listings of average, annual crop evapotranspiration (ETc) and other climatic data.
This would include daily ETc rates for commonly grown crops in that area, amount
of wind, gross rainfall, and possibly estimates of effective rainfall for common
combinations of soil and terrain. (Effective rainfall is the amount of gross rainfall
that actually infiltrates and is not immediate runoff.)
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CHAPTER 5
The PAWS system is a network of standardized, calibrated, computerized weather stations
that are placed in major agricultural regions throughout Washington State. They track and
store weather information as well as computing estimates of crop evapotranspiration.
3. Specific pest management information. What pests are important in the area and
suggestions on how they are best controlled.
4. Specific weed management information. What weeds are important in the area and
suggestions on how they are best controlled.
5. Results of current water quality assessments.
6. Information on local irrigation scheduling, irrigation system evaluation, pump testing,
or agronomic services. Also, phone numbers, addresses, and the type of services they
provide for local government agency offices.
7. Results of previous water quality control efforts and updates on current projects.
What projects were implemented, why they were needed, what effect they had on
water quality, what planning is being done, etc.