Contractor of Choice – Mladen Buntich Construction Co. was contracted by the Los Angeles County Sanitation Districts.

In 2004 Mladen Buntich Jr. and Lee Rosener worked with clients, engineers, and a Japanese based material company to evaluate the use in the United States for non-circular rehabilitation. After a long evaluation and trips to Japan, Buntich was the first company to use this product on non-circular assets to provide a structural rehabilitated line. The Buntich team worked with their client to bring new liner technology to the United States.