Alternatives - Residential Sewage Lagoons
Residential Sewage Lagoons
Residential sewage lagoons are used in some regions where the soils drain very slowly (or not at all). A standard septic system cannot provide disposal of wastewater since the drain field will not drain. The main concept is to treat the wastewater to a high standard (including disinfection) and discharge of the treated wastewater to a holding pond (sewage lagoon). Residential sewage lagoons rely on evaporation and wind to remove the treated wastewater.
Residential sewage lagoons have significant maintenance concerns which include:
- regular inspection of system components and safety measures
- periodic evaluation (testing) of the sewage treatment process and the effectiveness of disinfection
- maintaining a grassed area (free of trees and shrubs) around the residential sewage lagoon to maximize wind removal of evaporating water
- fencing to limit access to the residential sewage lagoon by livestock, pets and children.
A quick overview of residential sewage lagoon operation is provided by the Oklahoma Department of Environmental Quality (DEQ) which can be found at their website. The Oklahoma DEQ website also presents a Lagoon Fact Sheet that provides an excellent discussion of residential sewage lagoon cost evaluation, design, operation and maintenance.