American Commercial Lines Inc. (ACL) has invested in a 30 percent stake in a newly formed entity with environmental services contractor Summit Contracting, Inc. The financial terms of the investment were not disclosed but are not material to the company. The new company, Summit Contracting, LLC will provide emergency response, environmental remediation, industrial and civil construction services. In addition to continuing to service its established customer base of major transportation, chemical, energy and construction customers, Summit will provide value added services to ACL's new and existing customers.