Caltrans Water Quality Planning Tool
The Water Quality Planning Tool was created to help planners and designers comply with environmental permits. It uses a map interface to find information based on a project’s location. This application is being updated for digital accessibility and will continue to function while updates are in progress.
Layers | |
303(d) List and TMDLs 2014-2016 (Legend) | |
Areas of Special Biological Significance | |
Arid and Semi-Arid Regions | |
Caltrans Districts | |
Caltrans Facilities | |
Caltrans Tier 1 Monitoring Sites | |
Calwater Watersheds | |
Coastal Zone | |
Counties | |
Geologic Map (Legend) | |
High Risk Receiving Watersheds | |
Monthly Precipitation | |
MS4 Areas | |
Post Miles | |
Rainfall Distribution | |
RWQCB Boundaries | |
USGS Topo Maps | |
Watershed Boundary Dataset | |
Risk Level Determination | |
Erosivity Index | |
K Factor | |
R Factor (calculations) | |
LS Factor | |
Soil Details | |
Compliance Storm Events | |
5-yr 24-hr North | |
10-yr 24-hr North | |
5-yr 24-hr South | |
10-yr 24-hr South | |
Distance and Area
Feet: 0
Acres: 0
Postmile Lookup
Information
Additional information, tables, coordinates, and links are below the map.
Help
Postmile Lookup
| PM Click | PM Point | PM Line | - |