The water main system in Maroon Bell - Winchester neighborhood in Tract No. 12929-1 (also known as the Somerset Cottages Homeowners Association II) was constructed in the late-1980s, prior to the incorporation of the City of Chino Hills. Normally, water mains are designed to last 40 or 50 years. However, parts of the Maroon Bell - Winchester main, have failed repeatedly in just 25-30 years.
Analysis has shown that the construction methods used in establishing the system were of poor quality. The water main is concrete mortar lined and coated (CMLC) steel pipe. The steel pipe is exposed at points where appurtenances and services are connected without follow-on protection for the exposed metal. The result is that the pipeline failures have occurred where the exposed metal has corroded due to the corrosive soil.
Copper Saddle Way
Gold Dust Way
Maroon Bell Road