Soils and septic tank concentrations: Upper Trinity River Basin comprehensive sewerage plan.
Description:
Map shows soils, septic tank concentrations, watershed, watershed boundaries, existing and proposed reservoirs, counties, cities, and towns. Includes legend, text notes, and key map of study area. Scale [ca. 1:580,000].
Date:
1970
Creator:
North Central Texas Council of Governments
Item Type:
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