On Sep 18, 8:08*am, mike60510 wrote:
The ground water levels are seasonal and can vary from month to month

Agree. Here in NJ, it's common for there to be more water in Spring,
then decline to the point where many sump pits are dry during
summer. That can hold true even if you get a heavy rain during the
Summer.

Also, with new construction, often the amount of water that makes it
to the sump pump declines after the first 5 years or so. That's
because the disturbed soil allows rainwater to penetrate more easily
around the foundation than normal compacted soil will. Over time the
soil returns more to normal.