Percoa USA

What Makes Stormwater a Problem

While a rain storm may make us feel like the earth has been cleansed and renewed, a consequence of that rain is large amounts of pollutants including pesticides being washed into waterways.  The list below contains a few of the problem areas.


Excess nutrients

Bacteria and other pathogens 2019_6$largeimg22_Saturday_2019_072729601Photo Credit

Heavy metals

Trash & debris

Household hazardous wastes

Credit –

According to the article in Science daily, “researchers analyzed 500 chemicals in urban stormwater collected during rainstorms. These Samples contained a median of 73 organic chemicals, with pesticides being the most frequently detected chemical group. Eleven contaminants, including the insect repellent DEET, nicotine, caffeine and bisphenol A, were found in more than 90% of samples. The researchers also frequently detected prescription and non-prescription pharmaceuticals, indicating that the stormwater was contaminated with human waste, possibly from sewage leaks or other urban sources.”

It has become evident that more and more contaminants are carried in stormwater at higher rates that initially thought.

Urban Stormwater: An Overlooked Pathway of Extensive Mixed Contaminants to Surface and Groundwaters in the United States

Environ. Sci. Technol. 2019, 53, 17, 10070-10081
Publication Date:August 21, 2019

Is a great source of information looking into the “Increasing global reliance on stormwater control measures to reduce discharge to surface water, increase groundwater recharge, and minimize contaminant delivery to receiving waterbodies necessitates improved understanding of stormwater–contaminant profiles.”

Percoa Pavers installed in the Rain

One of the benefits of Precast Percoa pervious pavers, they can be installed even if it’s raining.

Pre-made / Pre-cast

Consistent mix design

Quality curing system

Consistent color system

Stability key-way

Install in any weather

No down time

Better flow rate

Raveling control

Learn About Percoa at the Ohio Stormwater Conference

Click this link to Learn about Percoa at the Ohio S.W. Conference 


Patented Precast Pervious Concrete

The Only Patented Precast Pervious Concrete

Click for Video

Concerns with Acidification in Oceans

Pollution in rivers, lakes and oceans has been in the news for years. Overloading of contaminates creates several different types of water problems. According to The Environmental Protection Agency  “Polluted runoff occurs when rain, snowmelt, irrigation water, and other water sources move across and through land, picking up pollutants and carrying them into lakes, rivers, wetlands, coastal waters and underground sources of drinking water.” There are other issues as well, including acidification in oceans.

In an article in the Huffington Post, Pierce Nahigyan writes “The ocean absorbs about 30 percent of the CO2 emitted from human activities. As the volume of atmospheric CO2 grows, the ocean collects its proportionate share. To give you an idea of how much that is, in 2013, countries emitted nearly 40 billion tons of carbon.  According to the World Meteorological Organization , that represents the biggest surge in CO2 concentration since 1984.”

SOURCE: Ocean Acidification Is Bad, and It’s Getting Worse  

Click here To Read the Full Article


Photo Credit and article fond at Salinity from space unlocks satellite-based assessment of ocean acidification

posted Jan 16, 2015, 7:43 AM by Salinity CERSAT


Percoa Website

Click Here for Percoa’s New Website

Percoa USA LLC has developed the only Patented Pre-cast Pervious concrete slabs that are environmentally friendly, durable, versatile, cost-effective, and easy to install. Percoa products can be used for new construction or to retro-fit existing concrete or asphalt surfaces such as parking lots, driveways, walkways, patios, storm water runoff basins, and many other surface applications where water runoff is a concern. Percoa Slabs are a Sustainable Solution.


Stormwater Credits Minneapolis

Did you know that you can cut your bill by using Percoa?

download (1)

Applying for Stormwater Quality Credits

What is the credit available for stormwater quality management tools/practices?

Click this Link to Minneapolis Stormwater Page

Property owners can apply for a credit of up to 50 percent of their stormwater utility fee if they are using stormwater quality management tools/practices (often referred to as “Best Management Practice” or a “BMP”).

Common stormwater quality management tools (BMPs) include:

Wet ponds Manufactured underground filters Rain gardens
Dry ponds Vegetated swales Infiltration trenches
Underground storage Sand filters Soak away pits
Wet or dry swales Filter strips Pervious pavers
Green roof Dry wells

You can learn more about stormwater quality management tools and practices from the Metropolitan Council’s

Urban Small Sites Best Management Practice Manual.” CREDIT MPLS Public Works

%d bloggers like this: