Description: American Concrete Products (ACP) was founded in September, 1999. Brad Jonckheere, President of ACP, purchased septic tank operations from D & J Gravel Co. of Howell, Michigan, which has been in business since 1950. Our commitment to our customers is to manufacture quality products and provide excellent customer service. We are constantly improving and enhancing our concrete that goes into the septic tanks to ensure that they are durable and watertight. We currently use a 7 sack self compacting concrete (SCC) mix with fiber-mesh. Every effort is made to deliver our products on time to the customer at the time they request.