Difference between revisions of "Stormwater infiltration"
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| − | Image:Infiltration constraints 3.png|500px|thumb|alt=imagemap stormwater constraints|Stormwater infiltration constraints - hover above a circle for text | + | Image:Infiltration constraints 3.png|500px|thumb|alt=imagemap stormwater constraints|<font size=3>Stormwater infiltration constraints - hover above a circle for text. Click on the link in the circle to go to the associated page in the manual.</font size> |
circle 450 225 40 [[Karst|The Construction Stormwater Permit prohibits infiltration of stormwater runoff “within 1,000 feet up-gradient or 100 feet down-gradient of active karst features”. Active karst is a terrain having distinctive landforms and hydrology created primarily from the dissolution of soluble rocks within 50 feet of the land surface.]] | circle 450 225 40 [[Karst|The Construction Stormwater Permit prohibits infiltration of stormwater runoff “within 1,000 feet up-gradient or 100 feet down-gradient of active karst features”. Active karst is a terrain having distinctive landforms and hydrology created primarily from the dissolution of soluble rocks within 50 feet of the land surface.]] | ||
circle 900 150 50 [[Shallow soils and shallow depth to bedrock|The Construction Stormwater Permit prohibits infiltration of stormwater runoff in areas with less than three (3) feet of separation distance from the bottom of the infiltration system to the elevation of the seasonally saturated soils or the top of bedrock.]] | circle 900 150 50 [[Shallow soils and shallow depth to bedrock|The Construction Stormwater Permit prohibits infiltration of stormwater runoff in areas with less than three (3) feet of separation distance from the bottom of the infiltration system to the elevation of the seasonally saturated soils or the top of bedrock.]] | ||
Revision as of 12:04, 18 May 2020
Schematic showing an infiltration basin, which is one of several stormwater control practices designed to infiltrate stormwater runoff. Infiltration practices capture stormwater runoff and allow it to infiltrate into the underlying soil. Pollutant removal occurs through a variety of mechanisms, including adsorption, absorption, plant uptake, and degradation. Note that inflow into the practice has undergone pretreatment and that once the practice is filled, runoff bypasses the practice rather than entering it.
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This page contains links to several pages that address infiltration of stormwater runoff. Link to portal for Infiltration Practices.
- Overview
- Pretreatment considerations for stormwater infiltration
- Best Management Practices (BMPs)
- Water quality
- Water quantity
- Separation distances
- Constraints
- When infiltration is not authorized under a stormwater permit
- Karst
- Shallow soils and shallow depth to bedrock
- Shallow groundwater
- Soils with low infiltration capacity
- Potential stormwater hotspots
- Wellhead protection
- Contaminated soils and groundwater
- Procedures for investigating sites with potential constraints
- Guidance for amending soils with rapid or high infiltration rates
- Decision tools
- Determining soil infiltration
- References for stormwater infiltration
- Supporting material for infiltration