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  1. Update on Sacramento-San Joaquin River Delta

    Contra Costa lies at the heart of the Bay-Delta region. The County is part of the Delta Counties Coalition, a consortium of five counties that works to give one voice to the Sacramento-San Joaquin River Delta System. Learn about the Delta tunnel project. Read more...
  1. All-Electric New Construction Ordinance for Residential, Hotel, Office or Retail Buildings Adopted

    On January 18, 2022, the County Board of Supervisors adopted an All-Electric Ordinance Read more...
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