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FALLOWED Land Registry
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Fallowed Land Registry

Supporting sustainable groundwater management through voluntary fallowing and transparent data insights.

Fallowed Land Registry Platform interface
Basin Intelligence

Key Basin Metrics & Insights

Harnessing high-resolution satellite imagery and groundwater monitoring to provide a comprehensive view of basin health and water usage.

ET & Precipitation

Access monthly evapotranspiration and precipitation data to track water consumption and natural inputs across the basin.

Crop Mapping

Identify crop types and distribution patterns using advanced satellite classification to understand land use trends.

Coming soon

Groundwater

Monitor aquifer health through instrumented well data, providing critical context for sustainable pumping.

GIS Layers

Explore comprehensive spatial data including GSA boundaries, parcels, farming units, and Williamson Act properties.

How to join

Simple enrollment journey

1
Submit Application

Create an account and start enrollment online. Complete self-certification and add your contact information. Your progress is saved as you go.

2
Register Fields

Use the map-first, GIS-based interface to confirm or claim your farming unit, add crop and irrigation details, mark wells, and draw fallowed areas. You can request boundary corrections when needed — our team will review them while you continue.

3
View Data

Access monthly ET data, precipitation, crop mapping, and other relevant basin datasets for your enrolled fields. Fallowed areas are screened automatically; we'll follow up if anything needs review.

TRUSTED BY ENROLLED FARMING COMPANIES

Enrolled farming company logo
Enrolled farming company logo
Enrolled farming company logo
Enrolled farming company logo
Enrolled farming company logo
Who it's for

Designed for irrigators, administrators & stakeholders

The Fallowed Land Registry Platform serves agricultural irrigators, County and GSA administrators, and public stakeholders—each with tailored access and capabilities to support sustainable groundwater management.

Agricultural Irrigators

Register fallowed lands and track water savings with secure PIN-based access to your farming unit data.

Field Registration Water Tracking
County & GSA Admins

Document and verify fallowed lands, evaluate basin impacts, and manage enrollment data.

Application Review Basin Metrics
Public Stakeholders

Access basin-scale statistics and transparency data to understand groundwater management trends.

Public Dashboards Aggregated Data
Industry First

Built for the Field, Not Just the Office

Most agricultural mapping tools are designed for desktop computers. This platform was built to work just as well in the field as it does in the office. View high-resolution satellite imagery, map fallowed areas, and check basin metrics directly from your phone or tablet.

  • Map in the field: Draw or adjust field boundaries while standing right on the property.

  • Easy-to-use layers: View important GIS data layers designed to work smoothly on phones and tablets.

  • Instant updates: Anything mapped in the field is immediately available to administrators and basin managers.

Mobile GIS Interface
FAQ

Frequently asked questions

Find quick answers to common questions about the Fallowed Land Registry Platform.

  1. Managed as a single irrigated farming operation.
  2. Contain a fallowed area of at least two (2) acres.
  3. Fallowed area sources commercial irrigation water from the Basin or from the surrounding areas subject to the Agricultural Offset Ordinance.
  4. Fallowed area has been commercially irrigated within the five (5) years preceding the enrollment application date; and was planted in compliance with the County Agricultural Offset Ordinance (County Code section 22.30.204), or has a valid Agricultural Offset Clearance or Agricultural Offset Exemption issued by the County Department of Planning and Building authorizing the planting of at least two (2) acres of commercially irrigated crops if within the area covered by said ordinance.

Growers who enroll in the Registry would receive the following benefits:

  1. For parcels located within the area subject to the Agricultural Offset Ordinance, exemption from the Agricultural Offset Ordinance five (5) year lookback;
  2. For parcels in a Williamson Act contract, exemption from Williamson Act contract irrigation requirements;
  3. For all parcels within the Basin and additional area subject to the Agricultural Offset Ordinance, access to farming unit-specific satellite-based ET data to inform fallowing decision-making and a mechanism to formally document water use (or lack thereof); and
  4. For parcels located within the area subject to the Agricultural Offset Ordinance, self-certified maintenance of neutral water use per farming unit, subject to verification using satellite-based ET data, rather than having to apply for an Agricultural Offset Clearance from the Department of Planning & Building when replanting.

No. Individual enrollee information is private and proprietary. Public access includes only basin-scale statistics and generalized information. Enrollees can only access their own farming unit data through secure authenticated accounts. The platform maintains strict privacy protections to ensure user data separation.

Public users can access basin-scale statistics and generalized information including monthly ET (evapotranspiration) data (total and net), monthly precipitation, crop mapping and crop type information, and comprehensive GIS layers. Individual enrollee data remains private and is not accessible to other users. Groundwater level data will be available in a future release and is not yet accessible to users.

Data Integrity & Interoperability

Data from Trusted Sources

The platform integrates high-resolution datasets from local, state, and federal agencies to provide a comprehensive, science-based view of basin health and water usage.

SLO County

County of SLO

GSA Administration & Local GIS

DWR

CA DWR

Groundwater Levels & SGMA Data

OpenET

OpenET

Satellite-based Evapotranspiration

USDA

USDA

Crop Mapping & Soil Surveys

USGS

USGS

Hydrological Monitoring

NASA

NASA

Remote Sensing & Earth Observation

Google Earth Engine

Earth Engine

Geospatial Analysis Platform

And More

Land IQ, FEMA, & Local GSAs

Our GSA partners

Supporting Sustainable Groundwater Management

The Fallowed Land Registry Platform is developed and managed in collaboration with County of San Luis Obispo Groundwater Sustainability Department and the Paso Basin Groundwater Sustainability Agencies to support voluntary fallowing and sustainable groundwater management.

City of Paso Robles GSA logo

City of Paso Robles

Groundwater Sustainability Agency

County of San Luis Obispo GSA logo

County of San Luis Obispo

Groundwater Sustainability Agency

San Miguel CSD GSA logo

San Miguel CSD

Groundwater Sustainability Agency

Newsletter

Stay Informed About Basin Updates

Subscribe to receive updates about new data releases, platform features, workshops, and important basin information.

  • Monthly updates

  • Workshop announcements