What is the Crystal Lake Watershed?
Crystal Lake is an important and environmentally sensitive resource that requires vigilance to keep it a high quality lake. The area around Crystal Lake that drains to the lake is called the "Crystal Lake Watershed". The City has special requirements that regulate development and land use in the watershed in order to protect the quality and quantity of water that reaches the lake.
Site Improvements to Existing Residential Homes in the Crystal Lake Watershed
If an improvement to your home or lot increases the amount of impervious area, an infiltration trench may be required. City staff in the Engineering Division will determine if an infiltration trench is required using this process.
The process uses one of two calculators to determine the total new impervious surface.
- The Simplified Analysis Calculator is used when there is no substantial grading and/or removal of brush or wooded areas.
- The Detailed Analysis Calculator is used when there is substantial grading and/or removal of brush or wooded areas.