GUIDELINES / 1.0 Water Quality

• 1.0 Introduction
• 1.1 Buffers and Land Management
• 1.2 Karst Landscapes
• 1.3 Frozen Soils
• 1.4 Target Buffers In Watersheds
• 1.5 Arrangement Near Sources
• 1.6 Buffer Site Design
• 1.7 Variable Buffer Width
• 1.8 Effective Buffer Area Ratio
• 1.9 Slope and Soil Type Adjustments
• 1.10 Buffers for Sediment
• 1.11 Buffers for Pathogens
• 1.12 Buffers for Nitrogen
• 1.13 Buffers for Phosphorus
• 1.14 Buffers for Pesticides
• 1.15 Buffers for Shallow Groundwater
• 1.16 Urban Runoff and Roadsides
• 1.17 Buffers and Grazing
• 1.18 Allowances for Bank Erosion
• 1.19 Buffer Width Design Tool for Surface Runoff
• 1.20 Vegetation for Removing Pollutants from Runoff
• 1.21 Stiff-stemmed Grass Barriers
• 1.22 Vegetation for Bank Erosion Control
• 1.23 In-Stream Pollutant Removal
• 1.24 Species Selection
• 1.25 Sediment Removal
• 1.26 Harvesting for Nutrient Removal
• 1.27 Plant Succession
• 1.28 Vegetation and Traffic

1.23 In-stream Pollutant Removal

Buffers can enhance in-stream processes that remove pollutants carried by streams. Plant debris supports denitrification and pesticide degradation while large woody debris promotes deposition of sediment (see 2.11). In-stream pollutant removal rates are highly variable. Impact on stream pollution level is generally greater during low flows and in small streams.

DOWNLOAD: 1.23 Guidelines and References (PDF)