The Stormwater Blog 

Contech Stormwater experts discuss designing stormwater BMP’s, regulations, maintenance issues, and all things stormwater.

Entries for 'The Stormwater Blog'

The durability of Aluminized Type 2 corrugated steel pipe detention systems
For this issue of the Stormwater Blog,we thought it would be beneficial to include a short video to better visually illustrate the durability and gene...
Contech CDS Solution Used in Award Winning Stormwater Project

The City of Los Angeles Bureau of Sanitation received the Outstanding Stormwater Best Management Practice (BMP) Implementation Award for its Garvanza Park Stormwater BMP Project from the California Stormwater Quality Association (CASQA). 

Estimating the ROI of a Commercial Scale Rainwater Harvesting System

When you mention a commercial rainwater harvesting system (RWH) to an engineer, developer or owner, one of the first questions you get is “what’s the ROI?” Return on Investment and Net Present Value vary widely depending on specific project variables and there is no one correct answer.  The three largest factors impacting ROI are initial cost of the system, water utility savings, and the value of land space saved for a stormwater BMP.

Thinking Outside the Box: Infiltration System Layouts
Historically, underground infiltration beds have been laid out in either square or rectangular shapes, sometimes far away from where the actual rain drops fall. These large systems are typically fed by a series of upstream catch basins and conveyance pipes. Several factors contribute to site layout, but mostly it simplifies the hydrologic and hydraulic modeling process, and keeps infiltration beds away from more sensitive underground infrastructure.
24 Rainwater Harvesting Design Questions

These are the top 24 questions asked about Rainwater Harvesting Design after Part 1 of our Rainwater Harvesting Webinar Series: Rainwater Harvesting as a Runoff Reduction tool. You'll find questions like...

Where can I find local rainfall data for various areas?
What happens at the end of the life of the system?

3 Rainwater Harvesting Cost Questions

After the first part of our four-part Rainwater Harvesting webinar series, Rainwater Harvesting as a Runoff Reduction Tool, participants had the opportunity to ask our Rainwater Harvesting experts questions.

We didn't have enough time in the hour to answer all of the questions, so we are posting them here so that they are available to all.

These were the top 3 questions asked about Rainwater Harvesting Cost.

3 Rainwater Harvesting Regulation Questions
These are the top 3 questions asked about Rainwater Harvesting Regulations after Part 1 of our Rainwater Harvesting Webinar Series: Rainwater Harvesting as a Runoff Reduction tool. You'll find questions like...

Has Contech done an evaluation on the LEED points available for their various Rainwater products?
Is that information listed on their website?
5 Rainwater Harvesting Cistern Questions
These are the top 6 questions asked about Rainwater Harvesting Cisterns after Part 1 of our Rainwater Harvesting Webinar Series: Rainwater Harvesting as a Runoff Reduction tool. You'll find questions like...

How do cast-in-place concrete installations compare to precast for large applications?
Are the Steel Reinforced Polyethylene cisterns rated for potable use?
These are the top 8 questions asked about Rainwater Harvesting Treatment after Part 1 of our Rainwater Harvesting Webinar Series: Rainwater Harvesting as a Runoff Reduction tool. You'll find questions like...


With harvesting off of parking areas, how do you handle oil and grease?
How would the engineer develop the mechanical control panel for these systems? Is a turnkey solution provided by the product vendor?

3 Rainwater Harvesting Maintenance Questions
These are the top 3 questions asked about Rainwater Harvesting System Maintenance after Part 1 of our Rainwater Harvesting Webinar Series: Rainwater Harvesting as a Runoff Reduction tool. You'll find questions like...

What do you do for overflow/dewatering for maintenance?
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