Landfill Closure Issues. Stormwater Retention. Florida Regulations - must collect and detain runoff from first 1” of rainfall (for > 100 acres, 0.5” for < 100 acres) detain for 24 hrs. Stormwater Control. Direct surface water run-off away from the landfill . Stormwater Management.
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Direct surface water run-off away from the landfill
One line of three (minimum) well down gradient from landfill perpendicular to groundwater flow, penetrating entire saturated thickness of aquifer (1/250 ft of landfill frontage at boundary of site or at surface water)
Objective: To reduce pore water pressure, avoid seepage-induced instability and limit infiltration