Thousands of volunteers fanned out across the city Wednesday, taking part in Community Impact Day a grassroots initiative that began in Holland and is now spreading to communities across the country.From scrubbing and shoveling to sorting supplies, more than 2,000 residents pitched in at 122 locations throughout the city. Neighbors unite for Hollands Community Impact Day, sparking a nationwide movementBeyond that, there are 20 other chambers acr…