Can brick or gravel be considered permeable?

Both brick and gravel are considered impervious surfaces as they are typically not designed for stormwater infiltration. However, in the rare instance that these materials are used in a way designed for stormwater infiltration, the project may qualify for a green infrastructure or rate reduction credit.

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1. Can my existing best management practice (rain garden, detention pond, permeable pavement, etc.) be used?
2. Can brick or gravel be considered permeable?
3. If I drain my downspouts to grass, do I need to pay the utility fee?
4. Are there options for residents with low or fixed income?
5. If I drain to a creek, ravine, pond or lake, am I exempt from paying or would I qualify for a credit/grant?
6. If I construct a best management practice because it’s mandated by ordinance, can I receive a grant or credit?