He joined
Clean Harbors in
Boston, a pure hazardous waste handling and removal company, and then the Groundwater Technology Inc. at their corporate office in
Norwood, Massachusetts. He later joined Geraghty and Miller which headquartered in
Long Island. There he had come under the guidance of David Miller; he introduced him to Steve Blake and both encouraged and enabled him to build the technical foundation to make Geraghty and Miller, which later became Arcadis North America. ==Bibliography==