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TRANSLATE

Using Translation

The County of San Mateo has added a translation feature developed by Google Translate to assist web visitors in understanding information on this website in a variety of foreign languages. Please be aware that Google Translate, a free third party service which the County does not control, provides automated computer translations that may not give you an exact translation. The County cannot guarantee the accuracy of translations through Google Translate so translations should not be considered exact and only used as a rough guide. Anyone relying on information obtained from Google Translate does so at his or her own risk. The County disclaims and will not accept any liability for damages or losses of any kind caused by the use of the Google Translate feature.

sunset view from San Mateo County hills to ocean
STUDIES
Solving for tomorrow.

Studies

The Sustainability Department has conducted sustainability studies to explore potential improvements in the county.

Sustainability Studies

Prioritizing community needs.

Crosswalk at an intersection in North Fair Oaks

North Fair Oaks Bicycle and Pedestrian Railroad Crossing and Community Connections Study

The County of San Mateo conducted this study to assess the potential for a pedestrian and bicycle railroad crossing over or under the Caltrain tracks, making it easier to walk and bike in North Fair Oaks and part of adjacent Redwood City. For updates on active transportation in unincorporated county communities, visit the Department of Public Works website.

View Final Report (PDF)

Ver Informe Final (PDF)

Final Study Appendices (PDF)

Coleman Ringwood Transportation Study public surveys on clipboards at event table

Coleman and Ringwood Avenues Transportation Study

The purpose of the Coleman and Ringwood Avenues Transportation Study was to explore potential long-term, permanent solutions for pedestrian and bicyclist street improvements along Coleman and Ringwood Avenues in unincorporated San Mateo County and Menlo Park.

View Final Report (PDF)

Pigeon Point Lighthouse in Pescadero, California

South Coast Sea Level Rise Risk and Solutions Study

This study evaluates the impacts of sea level rise on San Mateo County’s South Coast.

Learn More

View Final Report (PDF)

aerial view of San Mateo County and San Francisco Bay

San Mateo Plain Groundwater Basin Assessment

The Sustainability Department and the Environmental Health Services division of San Mateo County Health jointly completed a groundwater basin assessment of the San Mateo Plain Subbasin to assess the groundwater resources and current condition of the subbasin; and identify potential groundwater management strategies. 

Learn More (PDF)

The Latest News & Events

Compost Workshop
May
12
Compost Workshop

Learn how easy and fun it is to recycle your fruit and vegetable scraps, leaves, and plant cuttings into compost in these free workshops! These workshops teach composting options suitable for those with or without a backyard. Apartment dwellers welcome! Compost provides valuable nutrients for your garden soil, helps retain moisture, which saves water, prevents erosion, loosens clay and compacted soils for better drainage, and suppresses weeds. It is rewarding to know you are turning what some consider waste into precious organic material for your garden.

Discounts and rebates for backyard compost and worm compost bins will be distributed to San Mateo County residents!

COMPOST WORKSHOP

Date: May 12, 2026
Time: 6:00 PM – 8:00 PM
Location: Atherton
Register here.

LEARN MORE
Short christmas tree propped up against a wooden fence next to a green compost bin.

Holiday Recycling Guide: How to Recycle Trees,…

Once the holidays wind down, it’s important to dispose of trees, lights, and decorations properly so they can be…
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Family of three walking along the shoreline at Cooley Landing in East Palo Alto.

How King Tides Help Us Prepare for the Future

In January, we had an amazing Coffee and King Tides event at Cooley Landing in East Palo Alto! We…
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Collage with four nature images and text in middle that reads '2026 Earth Month'

2026 Earth Month Events

Happy Earth Month! As we step further into spring, the month of April reminds us to celebrate our…
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