El Dorado County Redistricting:
Possible Maps for Supervisorial Districts

BOS approved base map    Alternative 2d by Paul Raveling

This web page shows proposals for new Board of Supervisors Districts, based on 2010 Census data for El Dorado County. Some of these maps were proposed by this author, Paul Raveling, and this page answers requests for maps to be made available.  The alternative recommended by this web author is the one pictured on the right above. Clicking on the image displays a large scale rendition. This map is being submitted on July 16, 2011 to the El Dorado County Citizens for Responsible Government for possible recommendation by that group.

In mid-June email I learned that the Board of Supervisors accepted one of my maps for consideration in a group with the five maps originally drafted for the Board by the County Surveyor's Office. As of 6/18/2010 I don't know which of four maps that I drafted is involved, but the most likely maps are Alternatives are identified on this web page as maps PR2C and PR1. This web page presents all four of the my Alternative maps and all five of the County's original 5 maps.

My personal recommendation to date has been to recognize all of these as initial studies, not alternatives which must be either adopted or rejected in exactly the form shown. It is likely that the best possible redistricting map will mix elements of some, perhaps even all, of these maps.

Notes follow the table of map images below. The table shows maps at Medium resolution and supplies links to individual map images at these different sizes and resolutions:
For the 5 County (CO1 - CO5) maps  Max images are the County's released pdf files, each containing a scalable map image. Size is ~ 2 megabytes.

Maps in the table are Small renditions; Clicking on any map links to a display of that map in Large format.
Ofherwise click on the link for the desired format in the Map Renditions column.

VariationMaps with color-filled districtsMap
Renditions
PR2D
District 1 maximally compact, generally HDR in EDH
Alternative 2d by Paul RavelingMax
Large
Medium
Small
Board of Supervisors approved base mapBOS approved base mapMax
Large
Medium
Small
 
PR1
Full County View

Based on CO3 (County Alternative 3), modified to somewhat improve cohesion of areas of similar population densities in west end of County.
Alternative PR1 full county renditionMax
Large
Medium
Small

Alternatives PR2A, PR2B, and PR2C all use identical boundaries for Districts 3, 4, and 5. District 4 boundaries with 3 & 5 were altered to keep as much area of "Greater Placerville" as possible within one district.
 
These three alternative maps were created with a GIS to equalize district populations within 1%.
Copies of the original GIS-generated maps will be linked by 6/20/2011. The GIS maps are uncolored and more detailed.
PR2A
District 1 maximally compact, generally HDR in EDH
Alternative PR2AMax
Large
Medium
Small

GIS
PR2B
EDH split north/south
Alternative 3, coloredMax
Large
Medium
Small

GIS
PR2C
EDH split east/west
Alternative 4, coloredMax
Large
Medium
Small

GIS

Original alternatives generated by the County of El Dorado
CO1
County Alternative 1
CO1:  County Alternative 1Max
Large
Medium
Small
CO2
County Alternative 2
CO2 - County Alternative 2Max
Large
Medium
Small
CO3
County Alternative 3
CO2 - County Alternative 2Max
Large
Medium
Small
CO4
County Alternative 4
CO4 - County Alternative 4Max
Large
Medium
Small
CO5
County Alternative 5
CO4 - County Alternative 5Max
Large
Medium
Small


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