CPR Services & Supplies, Inc DBA MDN Enterprises is your "one stop" source for water & sewer supplies. MDN Enterprises was e...stablished in 1987 and has greatly expanded since our entrance into the market. MDN Enterprises is owned by Cathey and Mike Norris and is a woman owned enterprise. The business was originally started in their 3 bedroom home in Kingwood, Texas with Mike and Cathey as the...