Del. Code tit. 9 § 4516
Permits for connecting any property by a drain or pipe with any county water main shall be obtained from the county government and shall be issued only to plumbers licensed to do business in this State. No permit will be granted for connecting any property by a drain or pipe with any water main unless application is made therefor to the county government in writing upon blanks furnished by the county government. The application shall state the full name of the owner, the size and kind of drain or pipe to be used and a full description of the premises, its location, the number and size of each building located thereon to be drained, the area of each floor thereof, including the floor of the cellar or basement, all of the purposes for which the drain or pipe is to be used, the time when the connection is to be made and other particulars for a full understanding of the subject and that the owner will be subject to all the rules and regulations prescribed by the county government. The application shall be signed by the owner of the property to be drained or supplied with water and by a plumber licensed to do business in this State. The owner shall also execute a release to the county government releasing the county government, its officers and agents and the County from all liability or damage which may in any manner result to the premises by reason of such connection. No permit shall be deemed to authorize anything not therein specifically stated.
9 Del. C. § 4516