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Polluted runoff from impervious surfaces in your watershed
affects the amount and the quality of water in your streams.
Regional mapping and analysis:
Comprehensive water resources plans require a good inventory of your
present resources, and an analysis of how your current policies and
processes will affect them as you approve development proposals.
What will you need? 3 Components:
1. A water resources inventory map. Find
resources
Where are your water resources?
Locate waterbodies and streams, but don't forget headwaters: those
wetlands and first order streams, ditches, and irrigation channels.
Do you have aquifer recharge areas?
Where does water drain?
Determine natural drainage patterns; identify soils and their characteristics;
locate watershed boundaries.
2. An impervious surfaces map.
3. A good build-out analysis
| Streets, parking and roofs do not have to be
100% impervious. It will depend on the design standards you adopt
in your community. |
Learn more
from the National NEMO Network about watershed mapping.
Link
to other technical resources.
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