Dublin Mayor David Haubert accepts the Recycled Water Customer of the Year Award, which recognizes the city’s extensive use and strong support of recycled water, from WateReuse California on March 20, 2017.
DUBLIN, CA – Water recycling experts and advocates from across California honored the City of Dublin today for using recycled water in nearly all city parks and street medians and for partnering with Dublin San Ramon Services District in requiring land developers to install recycled water irrigation. DSRSD, which provides water service in Dublin, nominated the city as Recycled Water Customer of the Year, an award given annually by WateReuse California to organizations that significantly advance the use of recycled water. Mayor David Haubert accepted the award at a ceremony in San Diego. Continue reading
It has been a wet winter. Over 40″ of rain has fallen at my home since October 1, 2016. On my quarter acre lot, that accounts for approximately 268,000 gallons of water, or enough to sustain my needs for 3-6 years (daily use averaging between 118 and 213 gallons per day). Note: one inch of water on a square foot of land is 0.623 gallons.
By installing a swale and a rainwater infiltration trench in my front yard, I am planting rain.
“Groundwater, the supply of water in underground aquifers that serves as a savings account of sorts during dry years, is still low and getting lower due to overpumping.” – Peter Gleick, chief scientist and president emeritus of the Pacific Institute
Take it from the experts, despite epic rainfalls with feet of water falling from “Atmospheric Rivers” the west coasts’ equivalent to a hurricane, parts of California will still have to conserve water.
Credit: Rainwater Harvesting
In short, an infiltration trench is a trough in the ground for water to flow into for the purpose of recharging the water table and to provide precious moisture to plants and trees in the area. It is with a built with a passive overflow to reduce ponding and flooding on the property. Depending on available space and proximity to building structures can determine the size and available free volume for the infiltration trench to hold.
In our complete guide to building an infiltration trench, we’ll show you a thorough 6-step process of how to design an infiltration trench, where to build it, how to build it and what to fill it with. Finally we’ll show you a way to make it pretty in the landscape.
River rock overlay.
We get it, one of the biggest reasons most people don’t install rainwater harvesting systems is they can be ugly. Who wants a blue barrel or a caged plastic cubed tank in their yard? I wouldn’t mind it, but my wife would go ballistic. This is why putting in an underground rainwater harvesting system like an infiltration basin is so easy because you can put whatever you want on top of it. Win win!
For the last installment for this series, I’ll show you how easy it is to “beautify” an infiltration trench.
AquaBlox installed in trench.
The installation part of my infiltration trench took about an hour. Compared to the testing, designing, researching, site preparation and digging phase of the project, installing the AquaBlox was the easiest and quickest part of the entire project.
This is the second to last article in this “infiltration trench” series but it is the most important. Read on to see how to install two large AquaBlox and get the most out of the rainwater that falls on your roof.
Photo Left-Right: Mike Bakaldin (Interim General Manager), Phil Govea (Engineering Services Director), Joaquin Gonzalez (Operations Manager), Amanda Roa (Environmental Programs Manager), and Robert Brothers (Environmental Compliance Specialist II)
Delta Diablo, a Water Resource Recovery Leader in eastern Contra Costa County was honored in Sacramento last night with a prestigious 2016 Governor’s Environmental and Economic Leadership Award (GEELA).
GEELA is California’s highest environmental honor, administered by the California Environmental Protection Agency (CalEPA). The program recognizes individuals, organizations, and businesses who have demonstrated exceptional leadership and made notable, voluntary contributions in conserving California’s precious resources, protecting and enhancing our environment, building public-private partnerships and strengthening the state’s economy.
As a followup from our site preparation post, lets focus on following our design for an infiltration trench and actually dig one in. We left off with having dug up a birch tree stump which should leave us with enough room to put the dirt from the trench.
Start trench at least 10 feet from house foundation.
The infiltration trench is designed to allow rainwater from the roofs’ gutters to flow into an underground chamber and then overflow to the street. This will provide the rainwater from the roof a chance to percolate into the ground first before contributing to storm water runoff. This example has been taken from “Capturing Urban Runoff At Home – Part 1“.
Birch tree root rot.
Before digging the actual infiltration trench, I need to do some site preparation. I had a birch tree which suffered from root rot and it had to be removed both for the safety of nearby structures and the tree was dying. My goal with this project was to:
- dig out old tree roots and stumps
- remove black plastic weed barrier under top soil
- repair old irrigation lines
- remove enough debris to make room for trench dirt.
In this photo article, I’ll show you how I managed to complete this part of the project. All work was done by hand, except for a little chainsaw work. Click photos for full size.
AquaBlox with a 95% void.
When filling a trench or building an underground cistern, there are a few options: drainage gravel sporting a 33% void or a plastic modular system with a 95% void.
While seeking maximum storage potential, drainage gravel just won’t cut it.
Luckily, Atlantis manufactures a plastic modular system called D-Raintank and sold through a partner vendor named AquaScape Inc who calls them AquaBlox. There are two sizes – small and large and are available from the local Ewing Irrigation store or available in bulk if a project needs it.