Several potential issues of having a surface grade pitch toward a foundation.

There are several potential issues that can arise when a surface grade slopes towards a foundation:

1. Water infiltration: If the surface grade slopes towards the foundation, it can cause water to collect against the foundation, potentially leading to water infiltration into the basement or crawl space. This can cause damage to the structure and create an environment conducive to mold and other moisture-related issues.

2. Foundation settling: Excessive water infiltration can cause soil erosion, which can lead to settling and shifting of the foundation, potentially causing cracks and other damage to the foundation and the building.

3. Landscaping problems: Sloping the surface grade towards the foundation can create landscaping problems, such as pools of standing water, which can be difficult to mow or maintain.

4. Erosion: When water is not properly directed away from the foundation, it can cause erosion of the soil near the foundation, which can weaken the foundation over time.

5. Pests: A damp and dark environment near the foundation can attract pests such as termites and carpenter ants, which can cause significant damage to the structure.

To mitigate these potential issues, it is important to properly grade the surface around the foundation to direct water away from the building and prevent water infiltration.