A. Policy: It is the policy of the city that:
1. Stormwaters not be carried in irrigation ditches, nor that irrigation water be conveyed in storm drain systems.
2. Local pipes shall be sized for the 10-year storm event, however, all basins and other aboveground stormwater facilities shall be designed and constructed to manage the difference for the 100-year storm event.
B. Piping: Storm drain lines shall be concrete pipe (NRCP or RCP), of appropriate class. Minimum size for storm sewer mains shall be fifteen inch (15") diameter. Pipe specifications are included in the city's public works standard and technical specifications. Where determined by the city engineer, larger drain lines shall be installed to accommodate future development.
C. System Design And Costs: The cost to provide adequate storm drainage to a development shall be paid for by the developer. Structures shall be installed in accordance with the standard drawings.
D. Access: Storm drain lines shall have cleanout boxes, inlets or manholes installed at all changes in grade or alignment, with a maximum distance of four hundred feet (400') between accesses. (Ord. 2012-05)