CV-SALTS – Managing Salt and Nitrate in the California Central Valley

Find Your Management Zone


This map is useful for both residents and nitrate permittees.

  • Residents can use it to determine if their residential well system is eligible for testing and if so, find the contact information for their local Management Zone.
  • Dischargers can determine the Management Zone status of their location.

This interactive map works similarly to other mapping applications you have used. You can navigate around and zoom in and out. Click or touch on the location you are interested in, and a popup will appear showing contact information for active Nitrate Management Zones.

Locations supplied by municipal water supplies (not covered by the Nitrate Control Program) are shown in grey.

* Another simple way to tell if you are in you are not covered by the Nitrate Control Program is if you or your landlord pays a monthly water bill.