雨水条例要求增加d level of treatment. Engineers often specify manufactured, media-based filtration systems to meet the most

Phosphorus is the second-most-regulated pollutant in stormwater runoff after total suspended solids. However, engineers and regulators are still learning how to

Public parks benefit the community by providing places for recreation, gathering, education, and relaxation. Often, they provide benefits in the form of

Bioretention has been the principal form of Low-Impact Development (LID) used to slow, treat, retain and infiltrate stormwater runoff, mimicking a site's natural, pre-development hydrology. One aspect of bioretention that has some scientists and regulators concerned is the phenomenon known as nutrient leaching. Nutrient leaching occurs when the bioretention media, which often contains compost, breaks down and releases phosphorus to downstream receiving waters.

If you are involved in any aspect of stormwater management, no doubt you have heard the phrase "impaired waters." The determination and subsequent listing of a