Environmental Resources Inventory
Potomac Subregion, January 1998
Menu
Details
of Publication
Introduction
and Executive Summary
Existing
Environmental Conditions
Regulatory
and Policy Framework for Environmental Planning in
the Potomac Subregion
References
Appendix
Tables
Figures
Introduction
and Executive Summary
Description of the Potomac
Subregion
Summary of Environmental
Resources
Environmental Policy Framework
Existing
Environmental Conditions
Geology and Soils
- Topography and Slopes
- Mineral Resources
General Characteristics of Vegetation and Sensitive Areas
- Forests
- Wetlands
- Habitats of Rare, Threatened, and Endangered Species and Areas Likely to Contain Unusual Biological Communities
- Wildlife
and Fish
- Forest Interior and Riparian Forest Habitat
- Grassland and Edge Habitat
- Wildlife Management Concerns
Air Quality
Noise
Water and Sewer Service and Capacity
- Sewer System Capacity
- Water Treatment
The Potomac River
Tributary Watersheds of the Potomac Subregion
- Lower
Seneca
- Watershed Character
- Water Quality
- Sensitive Areas and Wetlands
- Muddy
Branch
- Watershed Character
- Water Quality
- Sensitive Areas and Wetlands
- Watts
Branch Mainstem
- Watershed Character
- Water Quality
- Sensitive Areas and Wetlands
- Piney Branch
- Watershed Character
- Water Quality
- Sensitive Areas and Wetlands
- Greenbriar Branch
- Watershed Character
- Water Quality
- Sensitive Areas and Wetlands
- Sandy Branch
- Watershed Character
- Water Quality
- Sensitive Areas and Wetlands
- Cabin John Creek
- Watershed Character
- Water Quality
- Sensitive Areas and Wetlands
- Rock Run
- Watershed Character
- Water Quality
- Sensitive Areas and Wetlands
Regulatory
and Policy Framework for Environmental Planning in the
Potomac Subregion
Water Quality Management
Stormwater Management
Floodplain Management
Mineral Resources
State Smart Growth Initiatives
Sensitive Areas Protection
and Biodiversity
Forest Conservation
Air Quality Policies and
Regulations
Noise Regulation
Water Supply and Sewerage
Appendix
Environmentally Sensitive
Areas
Wetlands Functional Assessment
Methodology
Fish Species of the Potomac
Subregion
Countywide Stream Protection
Strategy Management Categories
- Watershed Preservation Areas
- Watershed Protection Areas
- Watershed Restoration Areas
- Urban Watershed Management Areas
- Agricultural Watershed Management Areas
Calculating Existing Subwatershed
Imperviousness
Determination of Significant
Forest Blocks
Potomac Subregion Sewer
and Water Status Report
Overview
County Council Actions on
Sewer Service
- Sewer Service in the Sandy Branch/Greenbriar Branch Basins
- Sewer Service in the Piney Branch Basin
- Sewer Service in Other Stage IV Areas
Soils Constraints
Sewer System Capacity
Water Treatment Issues
Detailed Discussion of Analysis
Areas
- Analysis Area 1 - The Darnestown Triangle
- Analysis Area 2 - Sandy Branch Pump Station (WWPS) and Rich Branch Trunk Sewer
- Analysis Area 3 - Sandy Branch and Greenbriar Branch
- Analysis Area 4 - Piney Branch Basin
Water Quality Monitoring Summary Tables
- Slopes of the Potomac Subregion
- Active Mines and Quarries
- Parkland, Natural Resources and Agriculture by Watershed Area
- Natural Resources and Agriculture in Parkland
- Forest Resources by Watershed Area
- Wetland Resources by Watershed Area
- Rare, Threatened, and Endangered Plant Species
- Chronology of Environmental Policy and Regulatory Actions
- Floodplain and Stormwater Management Responsibilities
A-1. Sensitive Resources
A-2. Wetland Assessment Group
Functional Scores
A-3. Fish Species Collected
in Various Watersheds
A-4. Summary of Percent Impervious
Area
A-5. List of Forest Interior
Dwelling Bird Species
A-6. Summary of Lower Seneca
Stream Monitoring
A-7. Summary of Muddy Branch
Stream Monitoring
A-8. Summary of Watts Branch Stream
Monitoring
A-9. Summary of Cabin John
Stream Monitoring
A-10. Summary of Rock Run Stream Monitoring
- Potomac Subregion Vicinity Map
- Potomac Subregion and Watersheds Under Study
- Geologic Features
- Soils with Severe Septic System Limitations
- Forest Areas
- Traffic Noise Impact Areas
- Sewer Service Areas
- Water Service Areas
- Potomac River and Tributary Streams
- Countywide Stream Protection Strategy-Subwatershed Conditions
- Countywide Stream Protection Strategy-Management Categories
- Lower Seneca Sensitive Areas
- Muddy Branch Sensitive Areas
- Watts Branch Rapid Stream Assessment
- Watts Branch Sensitive Areas
- Cabin John Creek Sensitive Areas
- Rock Run and Potomac Direct Sensitive Areas
- Environmental Policy Sources to Guide Master Planning
A-1. Potomac Study Area Aerial
Photograph Acquisition Dates
A-2. Potomac Study Area Subwatersheds
*Requires PDF Reader to view this document
