Trash Guard retention performance has been measured at multiple sites of diverse topography and land use classifications. These studies indicate that up to 20 pounds of nutrients are being removed per ton of materials retained by Trash Guard.

The amount of metals being retained, such as lead, zinc, copper, and cadmium is approximately One Half pound per ton retained materials on average. These surprisingly high retention rates are suggesting to researchers that modern stormwater flows are no longer the benign phenomenon that society has historically considered them to be.

Studies & Reports:

Nutrients & Minerals per ton

Stormwater Solids Collected Data

How Stormdrain Populations Are Calculated

Consequences Of Stormwater Pollution

Fish, Shellfish

Sediment Covers Spawning Beds
(Damages Commercial & Recreational Fishing)
Metals & Organics in Stormwater Harmful
To Fish
Plastic Loops Can Strangle Birds
Sediment Increases Disease in Fish by
Irritating Gills
Sediment Fills in Space Between Gravel in
Stream Beds Where Fish Spawn
Decomposed Vegetation Consumes Oxygen
(Fish Cannot Tolerate Low Levels of Dissolved Oxygen)

Aquatic Life

Sediment Covers Submerged Vegetation
Metals & Organics in Stormwater are
Toxic to Aquatic Life (Plants & Insects)
Which Other Aquatic Life Feed From
Decomposing Vegetation Consumes Oxygen
Sediment Blocks Sunlight Aquatic Plants
Use to Grow

Humans

Harmful to Boating & Swimming
Sediment Clogs Harbors & Reduces Storage
Capacity of Reservoirs
Damages Commercial & Recreational Fishing
Swimming in Polluted Water Can Make
One Sick
Stormwater Trash is an Eyesore