The build-up of solids or sludge in an effluent system can be problematic as it can reduce the storage volume in single-pond systems and increase transfer of solids into the second pond or storage ...
Metro cities could be on the hook for $1 billion or more in cleanup costs in coming years as they grapple with contaminated sludge in storm-water ponds that dot the metro area. The main culprit: ...
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