Public Works

On Your Farm

The nature of agricultural activities, including applying water to crops that have been previously treated with pesticides and fertilizers, means that growers have opportunities and responsibilities to carefully manage their operations to reduce runoff to local waterways. In the Central Valley, the Regional Water Quality Control Board administers the Ag Waiver program, allowing growers to work together to monitor water quality and manage runoff.

Do this today:

• Become familiar with the Ag Waiver program and decide if and how you’d like to participate. Visit the Regional Water Quality Control Board for information on the overall program, and the local Water Quality Coalitions for information about your specific area.
• Keep your irrigation water on your property. Techniques such as infiltration drains or holding ponds work well. Find out more from your county Agricultural Commissioner, local Resource Conservation District or UCCE specialist.
• If you use pesticides or fertilizers, read the label carefully and always apply according to the label directions. Be certain that your workers are trained in how to apply chemicals properly.
• Store all petroleum-based products, lubricants, solvents, pesticides and fertilizers in a dry and secure location.
• Perform equipment maintenance activities on an impermeable surface, such as asphalt or concrete, and control runoff from this surface so that it does not get into surface water.
• Use evapotranspiration data to help you schedule and your irrigation water. Access the CIMIS (California Irrigation Management Information System) database or ask your local Agricultural Commissioner, UC Cooperative Extension office or Resource Conservation District for more information.

Do this over time:

• Consider a tail water return system, which recycles water from the bottom to the top of the field.
• Contact your local Resource Conservation District or Cooperative Extension office to schedule an irrigation efficiency evaluation. You can save water and help to improve water quality.
• Stay on top of innovations in growing practices by participating in continuing education programs, grower cooperatives and commodity groups.
• Consider planting cover crops to prevent erosion and runoff.
• Consider where and when you can use Integrated Pest Management Practices on your farm to reduce your overall use of chemicals.