Date: September 1, 1998
To: Whom It May Concern
From: David W. Jackson
Re: California Water Company, San Jose – San Mateo Division
Location: San Mateo, CA.
Site: Polhemus Road (photo attached)
Situation: San Mateo is located in a seismically active area in the hills West of the San Francisco airport and experienced a broken 1O” water main. The 10″ main was moved laterally approximately 50 to 60 feet due to a hill slide. Several homes above this area were condemned and removed.
Product: (6/250′) lengths of 6″ Portable Pipeline with Banded-On Cast Aluminum end pieces w/ Victaulic grooves.
(CWC) decided to purchase the Portable Pipeline System and deploy 2 parallel lines 750′ to replace the broken 10″ cast iron water main. The 10″ main had approximately 175 lbs of water pressure on it at all times. CWC bolted 2 cast iron reducing “T”s with 6″ butterfly valves on each line. They connected two 6″ parallel lines with Banded-On Aluminum Victaulic groove ends to the 6″ Tee’s by using Victaulic #741 Vic-Flange adapters.
The California Water Co. field maintenance crew deployed two parallel lines 750 feet each in just a few hours. Using the Portable Pipeline System eliminated the need for extra manpower and any special equipment for deployment. Each length was rolled down the hill and dragged over the rocky terrain by hand . The crew doing the work commented that the product was “a lot easier to move and a lot tougher than what they had thought.”
CWC expect the 6 lengths to be on location for at least 6 to 8 months due to the continuous shifting soil and potential for a complete line failure.
Once this project is finished the Portable Pipeline will be kept in reserve in the maintenance yard ready to be used for any scheduled shutdowns or future emergencies where drinking water is needed.
CWC considers the purchase of the Portable Pipeline System to be a very “cost effective” investment and expect to purchase additional lengths in the future.
Factory: 910 E Noble Way Santa Maria, CA. 93454 Tel: 800-747-7075 Fax: 805-922-0086
Field Location: 3844 Mistral Dr. Huntington Beach, CA. 92649 Tel: 714-840-3740 Fax: 714-840-1434 Pg: 800-504-2514
