Here are some other adult soccer leagues in the Charleston area:

Charleston Soccer League (City of Charleston, Dept. of Recreation)
843-769-8243

Men's Over 35/45 League (Charleston Battery)
843-971-GOAL

Mt. Pleasant Adult Coed League (Mt. Pleasant Rec Dept.)
843-884-2528 

Arena City Soccer (West Ashley-Savannah Hwy)
843-763-6080

Summerville YMCA Coed (Summerville YMCA)