Sloped sunshade cover

A wastewater treatment system comprising a wastewater treatment unit positioned within a basin and a cover positioned above the basin,

• the cover comprising
• a retractable awning configured to cover the wastewater treatment unit in a first extended position and allow access to the wastewater treatment unit in a second retracted position, the retractable awning configured to protect the wastewater treatment unit from effects of exposure to ultraviolet light in the first position;
• and
• a frame constructed and arranged to support the retractable awning positioned above the wastewater treatment unit at an incline angle,
• the frame having a base dimensioned to correspond with the basin, and
• the retractable awning having an incline angle selected to allow visibility into the basin from an adjacent walkway when the retractable awning is in the first position and the frame comprising a handrail positioned on a first side of the frame adjacent to the walkway and an apex of the retractable awning.