Calculate Your ICM Rating
Use this spreadsheet to calculate your ICM Rating:
What is an ICM Rating?An Impervious Cover Model (ICM) Rating tells you whether your property helps or hurts the Creek. The percentage of impervious surface has a direct affect on the health of the Bay and its tributaries. The ICM Ratings are:
Most urban and suburban houses have ICM Ratings that are either Impacted or Non-Supporting. Here is how a typical house in the Weems Creek Watershed rates:
The good news is, with a few simple changes, you can change your property from a Non-Supporting yard to a Supporting oasis:
For additional information, contact Corinne Reed-Miller.