Overcoming impermeable challenges to help a Maine community access a high-quality water supply
When Cumberland County Soil and Water Conservation District needed to design water-quality measures for its watershed, Long Creek Catchment A-105, we were there to help.
Developed for commercial use, the watershed covers about 14 acres (six hectares) and is marked by impervious areas of non-point runoff. After studying several treatment options, our water-resources team selected two methods: a large underdrain filter divided among five zones and the StormTreat™ water-quality system with underground detention.
In the first phase of the project, we designed the traditional treatment for 11 acres (four hectares) of the area. Treated water could be collected from a single site and distributed through a junction box to overflow outlets (concrete structures with beehive covers). These outlets control the excess runoff from storms. In the second phase, we designed the StormTreat™ system for the remaining acres. It features a swirl concentrator (for sediment removal) and underground storage (for detention and gradual release).
By using these advanced measures, we were able to overcame impermeable challenges and help a local Maine community access a high-quality water supply.
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