1. The customer shall be responsible for ensuring that no cross connections exist without approved backflow protection within his or her premises, starting at the point of service from the public potable water system.
2. The customer shall, at his or her own expense, cause installation, operation, testing, and maintenance of backflow prevention assemblies.
3. The customer shall ensure that copies of records of the installation and of all tests and repairs made to all backflow prevention assemblies be submitted to the Des Moines Water Works on the approved form within fifteen (15) days after testing and/or repairs are completed.
4. In the event of a backflow incident, the customer shall immediately notify Des Moines Water Works of the incident, and the Des Moines Water Works will recommend steps to confine the contamination or pollution.