Storm Water Pollution Prevention Plan (SWPPP) Practice Test 2025 - Free SWPPP Practice Questions and Study Guide

Question: 1 / 400

Infiltration basins help mitigate flooding primarily by:

Increasing surface water levels

Decreasing surface area for runoff

Allowing stormwater to percolate into the soil

Infiltration basins are designed to manage stormwater by allowing it to percolate into the ground, which is the primary mechanism through which they mitigate flooding. When stormwater runoff is captured in an infiltration basin, it gradually seeps into the soil rather than flowing overland. This process not only reduces the volume of water that enters surface water bodies, which can lead to flooding but also helps recharge groundwater supplies.

By facilitating the infiltration of stormwater, these basins decrease the peak flow of water that would otherwise contribute to flooding downstream. This beneficial process helps maintain a more stable hydrological cycle and can enhance water quality by allowing naturally occurring soil filtration processes to improve stormwater before it re-enters the groundwater system or local water bodies.

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Sending water directly to drainage systems

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