HYDRO SILICA EQUIPMENT LTD 1211 Newmarket Street Ottawa, Ontario K1B 3V1 Tel:   (613)  741- 3997 Fax:  (613)  741- 3589 Email:  customerservice@hydro-silica.com Hours of Operation: Monday - Friday 7:30AM to 4:30PM EST. (Closed on all Statutory Holidays) © Copyright 2002 All Rights Reserved.