Storm Water Pollution Prevention Plan (SWPPP) Practice Test

Disable ads (and more) with a membership for a one time $2.99 payment

Prepare for the SWPPP Test with our comprehensive resources. Study with various question formats, detailed explanations, and hints to ensure you understand crucial concepts for your exam day.

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

Practice this question and more.


Concrete water washout is known to have a high?

  1. Oxygen level

  2. Particulate matter content

  3. PH level

  4. Nutrient concentration

The correct answer is: PH level

Concrete water washout is known to have a high pH level due to the alkalinity of the materials used in concrete. When concrete is mixed, it contains substances like cement that are inherently basic or alkaline. When water is used to wash out equipment or surfaces where concrete has been mixed or poured, this washout water can have a significantly elevated pH, often exceeding levels that can be harmful to aquatic life if not properly managed. The high pH of concrete washout means that it can pose a risk of water pollution if it is not handled correctly, as it can alter the natural pH of receiving water bodies, leading to potential toxicity for aquatic organisms. Therefore, it is crucial to treat or contain concrete washout water properly to prevent it from entering stormwater systems or natural waterways, aligning with the goals of the Storm Water Pollution Prevention Plan (SWPPP) to minimize pollution from construction activities.