Do you issue tract and parcel map numbers?

For tract numbers for the entire county, and parcel map numbers for the unincorporated areas of Contra Costa, contact the Department of Conservation and Development (DCD) (925) 674-7722. For parcel maps in other cities, obtain the number from the city. 

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1. Does the County Surveyor's Office perform surveys for the general public?
2. Do you have maps and other records available online?
3. Do you have the flow rate at a specific location on a creek?
4. Do you issue tract and parcel map numbers?
5. Does the Flood Control District provide sand bags?