Following ADEQ approval, plans and specifications were completed by MWY to comply with the funding requirements for financing the construction of the wastewater collection system and treatment facilities improvements.
The new gravity interceptor sewers passed through wetlands, crossed extraordinary quality waters of the state and passed through habitat containing at least two known endangered species. MWY, with the assistance of Environmental Consulting Operations Inc., worked with the Corp of Engineers, the U.S. Fish and Wildlife Service and the ADEQ to secure the necessary 404 permit and established project conditions to meet the terms of the responsible regulatory agencies.
The collection system improvements included five flow diversion structures with adjustable weirs to divert flow to new gravity interceptor sewers in order to mitigate bypasses and overflows in the wastewater collection system.
This provided a mechanism for growth in the city of Rogers and facilitated the transport of excessive extraneous water during periods of high rainfall.
The project also eliminated every major lift station and made the wastewater collection system totally gravity flow.