NDS Signs a Distribution Deal With Triton Stormwater Solutions To Add Stormwater Chambers To Its S5 Sustainable Stormwater Solution
NDS, Inc., the nation’s leading provider of stormwater management solutions for both residential and commercial applications, today announced a new distribution partnership with Triton Stormwater Solutions (TritonSWS) that allows NDS to add three lines of Triton’s stormwater chamber products to NDS’s S5 Sustainable Stormwater Solution. NDS will be a preferred provider of the TritonSWS chambers across most of the U.S.
S5 is a new, innovative, professional stormwater management system that utilizes NDS components, such as catch basins, channel drains and Flo-Wells. A highly flexible and scalable single-source solution, S5 can be configured to meet a wide variety of residential and commercial applications. It is engineered for high performance and meets today’s regulations for on-site stormwater management.
“Triton’s stormwater chambers are a great addition to our already extensive line of stormwater products that are easy to install, easy to specify and deliver high performance results,” said Mike Gummeson, president, NDS. “This adds to our S5 system and gives specifiers, civil engineers and landscape architects even more options and greater flexibility in planning and installing their stormwater solutions.”
Triton’s unique, underground chambers provide a lower-cost alternative to drainage pipes for conveyance and cumbersome concrete structures. The TritonSWS product line eliminates the need for restrictive holding ponds that require use of valuable land area and offers the added benefits of groundwater recharge and water quality enhancement with a service life of over 50 years. Triton’s S29 (42.8 cubic feet storage), C10 (17.6 cubic feet storage) and M6 (11.5 cubic feet storage) chambers will now be part of the S5 solution.
“We here at Triton Stormwater Solutions are very excited to be teaming up with NDS,” said Joe Miskovich, inventor, founder and president, Triton Stormwater Solutions. “This relationship will provide the end user a much greater value proposition, more flexibility in solving drainage problems, greater ease in meeting stormwater regulations, and greater access to superior products in both the commercial and residential markets. The first class customer service provided by both NDS and TritonSWS –
coupled with extensive product lines – will afford any customer the desired solutions to their water-related problems.”
Specifically, Triton’s chambers, when compared to competitors, are –
Lighter: 46 percent lighter per cubic foot of storage
Greener: Manufactured using an eco-friendly, carbon-neutral, soy-based structural composite material
Larger: Up to 46 percent larger per linear foot than comparable products
Cost-effective: Less expensive to ship, takes less time to install and can be doubled stacked to maximize storage in a small footprint
Stronger: Third-party tests validated withstanding a rear axle load of 48kps (48,000 pounds) with little to no deformation without pavement
Easier to Install: Lightweight design allows for one-person installation
The NDS S5 system delivers five key sustainable benefits for both commercial and residential projects:
1. Improved conservation: Conserves stormwater on-site through filtration, detention and infiltration to counter the effects of drought, pollution and storms that threaten the quality and quantity of clean water
2. Better management: Manages rainfall on-site by maintaining pre-development hydrology as closely as possible and reducing downstream impact by using smaller, decentralized controls for filtration, detention and infiltration
3. Enhanced flexibility: Empowers designers to adapt the system footprint to the specific environmental conditions of an application site
4. Superior mitigation: Filters debris and other suspended solids, preventing negative downstream impacts through detention and infiltration components that reduce peak overflows
5. Greater replenishment: Promotes subsurface recharge to balance groundwater withdrawal
To learn more about the NDS S5 Sustainable Stormwater Solution system, visit http://www.ndspro.com/S5; follow on Twitter @NDS_pro. For more information about Triton Stormwater Solutions, visit http://www.tritonsws.com; follow on Twitter @TritonSWS.
About NDS, Inc.:
NDS, Inc. is a leader in stormwater management for both residential and commercial markets. Since 1972, NDS has served as a primary source for stormwater management, efficient landscape irrigation and water flow management products and solutions. Headquartered in Woodland Hills, California, NDS is a proud member of the NORMA Group, a global market leader in engineered joining technology. For more information about NDS, visit http://www.ndspro.com.
About Triton Stormwater Solutions:
Triton Stormwater Solutions, based in Brighton, Michigan, supplies the next generation of stormwater chamber management systems. Greater capacity, ease of chamber installation and superior strength make Triton Stormwater Solutions the professionals’ choice. Triton’s chambers outperform the competition in every major matrix. For more information about Triton, visit http://www.tritonsws.com.
Playing Dirty in the War for Water
I am a farmer’s daughter. I grew up checking sprinklers and changing irrigation with my dad in a pair of muddy boots. The experience afforded me an intimate awareness of the importance of having affordable water to nourish one’s crops. My family still farms in California, and as my last name indicates, our heritage is Hispanic. Which is why I find this story especially upsetting.
With poignant slogans and gripping imagery, an organization called “El Agua Es Asunto de Todos”—Water is Everybody’s Business—has demanded more water for the San Joaquin Valley. In video testimonials on the group’s website, Hispanic community members share stories of the valley’s once-productive fields as well as the suffering they experience now from lack of work. They discuss school closures, poverty, and loss of homes. The organization’s website reads: “No water. No work. No economy,” and, “Water is the key to our future. And the future is in our hands.”
The group’s message is a valid one. Without water there are no fields and therefore fewer jobs. But its message also strikes me as disingenuous. While El Agua operates under the guise of a grassroots Latino community effort, as the New York Times reported in December, it is funded entirely by Westlands Water District.
To be clear, nowhere on El Agua’s website could I find mention that the organization is bankrolled by Westlands. Nor could I find any statistic or reference to water availability and usage. Instead, its pages are filled with emotionally charged language and victimized pleas. “It’s a disaster,” one testimonial reads. “We’re going to lose everything we have.” But the fact is, that the group’s participants—presumably innocent, well-meaning people—are being played. And their heart-wrenching village campaign is, in reality, a thirsty wolf in sheep’s clothing.
Westlands Water District is not your average water district. According to the New York Times article, it supports about 600 large-scale farmers within a 600,000-acre stretch of land in California’s San Joaquin Valley. As the Times reports, it’s a $100 million-a-year agency and a powerful political force, with a litigious past and five lobbying firms under contract in Washington and Sacramento, all with one objective: to get its hands on inexpensive water.
The New York Times reports that for decades a federal water management organization called the Central Valley Project offered farmers in California’s San Joaquin Valley an abundance of affordable water that it gathered in northern California and piped south via 500 miles of canals. Farmers within the district received a triple subsidy—cheap water, USDA crop subsidies, and below-market electricity. However, in the 1970s, the State Water Project created a second canal system and diverted some of the same water from the northern Californian source rivers.
As you can imagine, devastating environmental problems emerged. Commercial salmon fisheries collapsed. At the confluence of the Sacramento and San Joaquin Rivers, fish populations declined dramatically. Congress’s solution was a law reserving at least a minimum amount of water for wildlife. Not surprisingly, it hit a nerve with farmers in the San Joaquin Valley. El Agua represents one facet of Westlands’ many efforts to access more federal water.
Since then, Westlands has lobbied for new reservoirs to augment Central Valley Project reserves, according the New York Times. It has pleaded that water scarcity will ruin the lives of the district’s Latino population. Purchasing water at inflated prices from other sources would reduce agricultural profits and threaten farmers’ bottom line with ruinous results. The New York Times reports that Westlands is currently working to persuade Congress to loosen the rules that set aside Sacramento basin water for fisheries. And it will stop at nothing to get the federal tap turned back on.
In a heartfelt message on El Agua’s website, general director Martha Elvia Rosas writes, “When we suffer water restrictions, all of us are affected. However the Hispanic community is especially vulnerable. We lose our jobs and our businesses. Furthermore, we lose educational opportunities for our children and, in general, our entire future is put at risk.” This statement, while partially true, leaves out the fact that Westlands has the power to change the current circumstances, or any role in the issue’s resolution for that matter.
El agua es absolutamente asunto de todos. I couldn’t agree more. Water rights are indeed everyone’s business. And I wholeheartedly support an honest discussion of facts between farmers, politicians, and the Hispanic community. But manipulative tactics and self-serving slogans? That just seems sinister.
By Laura Sanchez-Editor Water Efficiency Weekly
Rainwater Harvesting A growing industry
Although various forms of rainwater harvesting have been used for thousands of years, as an organized industry, it is still in its infancy. At present, no national standards are in place regulating its use, although various states and municipalities have begun promulgating laws concerning how rainwater may (or may not) be used.
The rainwater harvesting industry has a national organization, the American Rainwater Catchment Systems Association. It is presently headed by David Crawford, president of Rainwater Management Solutions in Salem, VA.
A Word From the President
“The field is really ramping up,” says Crawford. “Actually, it has been over the last four or five years. You see EPA pushing it, localities pushing it. It’s an opportunity to collect water from off of roofs, and in fact reuse that water, keep it onsite, which eliminates a huge portion of your stormwater runoff.”
There are a variety of methods of collecting rainwater—rain barrels, aboveground or underground cisterns, and other collection devices. Such harvested rainwater is frequently used for irrigation, but can also be a source of water for flushing toilets, washing vehicles, and, in some cases, for drinking water.
Whether these systems can offer a financial payback for homeowners has been a point of contention, but Crawford insists that it is possible.
“When you look at the value of water, with people now getting $300, $400, and $500 water bills, the return on investment is much better on residential than it had been in the past, based on the cost of water going up, the water that you’re saving, and the new rooftop tax or impervious surfaces tax that a lot of municipalities are charging now,” he says.
Crawford notes that a number of communities are now offering rebates or reduced stormwater fees for homeowners who install a rainwater harvesting system or who disconnect their gutters from the stormwater system.
It seems that the nonresidential side is already seeing sufficient reason to install various rainwater harvesting systems.
“If you look at the volume, the numbers, the commercial is way above the residential, simply because the projects are so much bigger,” says Crawford. His company has completed numerous projects for federal buildings, military bases, universities, hospitals, and private business across the US and Canada.
In some cases, Leadership in Energy and Environmental Design (LEED) certification has opened doors to suppliers of these systems. “Even though LEED costs have gone up and a lot of people have gotten away from LEED certification,” he adds, “it presents a format for people to do things the right way and in a sustainable way. So that has helped a bit.
“Even in facilities where the owner chooses not to pay for LEED certification, they still like to look at doing things in the best possible way. We’ve done jails, laundries, all kinds of commercial facilities. It’s a no-brainer—when 70 to 80% of our water use is nonpotable, why are we spending this money on energy to clean up the water, to get it to a potable status, plus all the money it costs to pump water out and back from centralized municipalities? Decentralized water systems are going to be the trend of the future.”
Crawford states that these rainwater harvesting systems can significantly reduce stormwater runoff. “It will be the trend. It will be the norm. It will be demanded on all new construction in the future, without a doubt, as it has played out in Europe.
“What most people don’t realize,” he continues, “is that for every 1,000 square feet of roof that you collect water off of, you’re going to average 620 gallons for an inch of rainfall. If you have a 2,000-square-foot house in Virginia, you’re looking at over 40,000 gallons of water a year.
“Or in Oregon or Washington state, there’s a huge amount of water coming off of these roofs. In Texas, where water’s extremely expensive, and also scarce, why would you not collect all the water off your roof?”
Crawford adds that once the rainwater has been collected, it can readily be connected to a home irrigation system. “That’s very easily done. We have plug-and-play systems we ship all over the country. They can be off the truck and in the ground in 30 minutes, once the hole is dug. You simply just hook that up to your supply pipe for your irrigation system and transfer it over.
“One of the things you’re going to see in the irrigation industry is a complete makeover and a change in what type of irrigation systems are being put in. You’re going to see subsurface systems put in, smarter controls put in, rain gauges and moisture sensors put in to your zones. People waste and overwater tremendously. There’s a huge amount of waste in that industry.
“The problem is that, in the US, we don’t pay the cost of our water. Most of it is taxpayer subsidized, so you might be paying 25 cents on the dollar. If everyone truly paid the real cost of the water, they’d be much more conservative with it.”
Most rainwater harvesting systems collect rain from rooftops and gutters, and the makeup of the roof is fundamental to how much water is collected, as well as to the quality of the water. “If you’ve got a membrane roof, that’s going to shed it off,” says Crawford. “If you have an old tar and asphalt gravel roof, that’s going to collect much less water. A lot of it is going to stick on there and sit on it.” Not to mention the dust and dirt and sediment that will accumulate on the roof and in the gutters.
As a result, a variety of filters and disinfection systems are available to bring the water to acceptable levels of quality. Crawford’s units contain vertical filters that remove items down to 280 microns. And he notes that a trend in the US is to use ultraviolet light for disinfection.
Crawford is finding that for some people, having a private, protected source of water is a motivation for installing rainwater harvesting systems. “We’ve done schools that use that for a backup supply, so everyone in the community can go to the school and have 250,000 gallons of water, if in fact a hurricane came through and contaminated their water supply.
“Another guy put in what we call a blind insert for his pre-filters, so when the Japan nuclear disaster happened, and we started picking up radioactivity in the US, he actually put in the blind insert and sealed his system off at his house. He runs a big company that supplies X-ray units to hospitals, so he knows all about radiation. He wanted to have his own secure water supply, free of contamination.”
Rain Check in Philadelphia
“ECA [Energy Coordinating Agency] has been around for about thirty years,” notes Zachary Popkin, program manager for ECA in Philadelphia. “It was founded in the 1980s as a nonprofit organization that focused on energy efficiency and weatherization.
“In the past few years, as the issues with stormwater management have increased in the city of Philadelphia, we have started to get into stormwater management. One of the things that we did in our facility was to install a rainwater harvesting system that includes a 3,000-gallon cistern, and we use it for the toilets and urinals in our training center, and also to wash our vehicle fleet.
“When we saw the payback that we got on that, the return on investment, it was quite remarkable. So after realizing how cost effective it was for us, we thought that it would be a good opportunity to enter the market in Philadelphia.”
ECA has been working with the Philadelphia Water Department on two different programs. “One is their rain barrel program,” says Popkin. “Through the rain barrel program, they give out free rain barrels to Philadelphia residents.” Interested residents attend an ECA workshop, where they are provided with installation and maintenance instructions. To date, nearly 3,000 of these free rain barrels have been handed out.
“The other program that we’re running for the water department, which is the program that I manage directly, is called Rain Check,” says Popkin. “It’s in its pilot phase, and that is the water department’s residential stormwater management program.”
The Rain Check program has trained two groups of contractors. One group performs stormwater site assessments for homeowners, to identify what can be done to reduce stormwater runoff. The other group performs the actual installation. These services are heavily subsidized, “to the tune of about 80 to 90%,” states Popkin.
Five “green tools” are offered as part of this Rain Check program. Residential properties may benefit from downspout planter boxes, rain gardens, de-paving of impervious surfaces, porous pavers, and yard trees.
“Although homeowners don’t get a reduction in their stormwater fee for participating,” notes Popkin, “they do get these different installations at a very drastically reduced cost.”
The current pilot program is slated to run through June 2013, although Popkin is optimistic that the city will not only continue the program, but expand it.
“The biggest hurdle at this point is getting folks involved. We have about 250 to 260 participants who have signed on for the pilot phase, and we have about 100 or so that are on our waiting list, if and when the program expands.”
He notes that although the rain barrel program offers the potential for reuse of captured rainwater, the various Rain Check installations are solely intended to reduce stormwater runoff.
“Sometimes an individual site’s conditions might allow for reuse. For example, if we were installing a downspout planter, in certain cases the overflow drain from the downspout planter might be directed toward a plantable area. But for the most part, the goal of these tools is just to reduce runoff, not really to provide water for any usable purpose.”
Nevertheless, Popkin identifies an added benefit to these planter boxes. “The big plus of these planters over the rain barrels is that they’re lower maintenance—because a rain barrel, to be truly effective, needs to be emptied between rain events. When folks neglect or forget to empty their rain barrel, it loses its effectiveness entirely.
“These planters are all planted with drought-tolerant native adapted species, which do a great job of absorbing and filtering that stormwater. Then we have an overflow drain and an underdrain in those planter boxes, which allow the water to escape the box and not become trapped in there. So it’s lower maintenance. They don’t need to be treated after every rain event. The plants and the planting medium do the job for you.”
For homeowners who choose to take advantage of collected rainwater in their rain barrels, there are a number of potential uses. “The rain barrel typically has a screen filter at the top, to prevent leaves and large bits of sediment from entering the rain barrel, but there’s no high-tech filtration system,” says Popkin. “For that reason, we suggest that the water from rain barrels is suitable for using for things like watering house plants, rinsing off patio furniture, or washing a car.
“But we advise against using it to water edible vegetation because of whatever sediment or contamination the water might pick up from the roof. I’m not sure that it would be extremely harmful, but we err on the side of caution, so we recommend that folks not use any harvested water to water their edibles.”
The rain barrels can certainly assist with reducing stormwater runoff, although Popkin noted that they typically hold only about 55 gallons, which will fill up pretty quickly in a typical rainstorm.
There is also a program for nonresidential property owners, known as the Stormwater Management Incentives Program. Administered by the Water Department and a local economic development group, it offers various grant and loan programs for businesses to reduce their stormwater footprint, but to date it has been underutilized, Popkin says.
“But the whole stormwater feeling in the city is gaining momentum, so we think when they do their second wave of grants and loans, that there will be a lot more interest,” he notes.
“Property owners [both residential and nonresidential] are starting to realize how much the stormwater fee is costing them. They’re starting to realize that they need to do something about it. They’re also starting to realize that it’s really not that difficult to do something about it. A lot of these installations are low impact; they’re pretty easy to install and they can do a great job of managing stormwater. I only foresee the demand escalating.”
Rainwater Harvesting in the Southeast
“When you’re talking about rainwater harvesting, you’re either talking about active or passive systems,” explains Mike Ruck of Rain Water Solutions, based in Raleigh, NC. “We predominantly deal with active systems, which means physical tanks, filters, pumps, that kind of thing. When you’re talking about passive systems, that’s when you’re talking about rain gardens, swales, and so on that are designed to slow the water from leaving the site—keeping it onsite so that you get deep ground infiltration, as opposed to just running off and hitting a stream. There are not enough of these systems in place, so streams are becoming less healthy, because we’re sending all that water to the stream rather than mimicking what happened predevelopment. Predevelopment, the majority of the water would stay onsite.
Ruck agrees with others in the industry that rainwater harvesting can both reduce stormwater runoff and decrease potable water demand.
“If you can help offset potable water use, to flush a toilet, then you’re addressing the stormwater issue,” he says, “because you’re storing it and not letting it leave your site. Then when you’re using that water to flush a toilet, you’re offsetting your potable water. There’s not a negative in that equation.”
As an example, Ruck points to a recent project he completed for the nearby Goodwill Community Foundation. “We set up a rainwater harvesting system to provide water for a memorial garden and a commercial greenhouse to grow food for the local community. This system has 136,000 gallons of capacity. They get 12,000 gallons of water for each inch of rain. In North Carolina, we get three to four inches of rain a month, so we’re able to meet a very large portion of their water demand.”
Ruck has found that for residential uses, despite its many benefits, rainwater harvesting may lack a quick payoff for homeowners.
“One of the hurdles we encounter is that water is kept artificially cheap. Municipalities and water providers and utilities don’t necessarily have to make money, and it’s a political hot button to raise water rates.
“If you look at Raleigh, with our growth rate and the water resources that we have, we’re set to run out of water by 2050. But they don’t want to raise rates because next door water is so cheap, so water is a really tricky subject.
“In a water-rich area like the Southeast, we’re used to just turning on the tap and having unlimited water. That’s a challenge for us, because tanks are expensive, pumps are expensive. People ask why they should spend $100 on a rain barrel, when that same $100 might buy 6,000 to 7,000 gallons of water.
“There might not necessarily be a dollar amount payback on a residential system,” he continues. “When you start getting on the commercial side, and you look at stormwater credits and how much potable water you can offset, then you can really look at a return on investment that makes sense.
“With a homeowner, you might be talking about 15 years to recoup the cost, but people live in a house seven to eight years, on average.
“The other challenges are just education. People think, ‘It’s rainwater from the roof; it’s dirty.’ But when you can control where it hits, and filter it, it can be used because it’s relatively clean coming out of the atmosphere.
“Probably 85% of the houses in America have asphalt shingle roofs. Most commercial properties have some type of metal roof or some type of membrane roof. The slicker the surface, the better your water quality is going to be coming out of your downspouts. The asphalt shingles are fine for collecting water for use in the garden, but asphalt shingles are going to hold a lot more dust, pollen, and particulates. But for a roof with a slicker surface, these won’t stick to it, it will just blow off with the next breeze.”
Jim Harrington runs Rainwater Collection Solutions in Alpharetta, GA. His company produces The Original Rainwater Pillow, which he describes as “a flexible pillow that fills up and empties with water; it moves up and down. It’s horizontal storage.
“I can make a pillow any footprint you want, from 1,000 to 200,000 gallons. We have residential and commercial applications. It normally goes into wasted space under a deck, in a crawl space, or under a porch.”
Harrington is very bullish on the rainwater harvesting industry, and notes that it has been growing exponentially. “It’s been huge,” he says. “It started out from nothing. There was a study about new products in rainwater harvesting that showed there is a new product coming out every month, on average, about 15 new products a year. It’s growing like crazy. We’re running out of water. That is a fact that’s pretty much undeniable.
“We’re literally—slowly, but surely—running out of water that’s clean and usable. Not only that, but energy is so huge. Probably 40 to 60% of the cost of water is attributed to the energy to move the water from one location to another.
“You cannot have energy without a lot of water, and you cannot have water without a lot of energy. We talk about energy and read about energy all the time, but we don’t talk about the fact that probably 60% of the water that we use in the United States is used to create energy, for cooling towers and hydroelectric power. You’re talking about billions of gallons a day.
“But pollution is really our biggest problem. One day, EPA is going to come down on Atlanta and say, ‘The river’s too dirty.’ We can’t afford to redo all the sewer systems, so the only way we’re going to go ahead and control the stormwater runoff in a reasonable way is to make all the homeowners do rainwater harvesting.”
A Canadian Perspective
Mike Gregory, a senior water resources engineer with AECOM, in Kitchener, ON, is very upbeat about the potential for rainwater harvesting, although he is dismayed at the slow progress the industry is making.
“It reminds me of LID [low-impact development] maybe five years ago,” says Gregory. “It’s a great idea, and it works on individual sites, individual lots, individual parcels. But for big applications, I don’t think we’re there yet. That doesn’t mean we stop the dialogue. We have to keep going.
“What is so exciting to me is that it’s better than LID. It’s LID plus. LID doesn’t work in locations where you just don’t have good groundwater conditions or soil conditions. It’s not for everyone. But there is always, always, always an opportunity for reuse on a site.
“Once you have storage, you can use it again. One of the downsides of things is that we’re just not there yet with the treatment aspect. There are clean sources of runoff, and there are dirty sources of runoff. There are some you don’t want to touch, while others are perfectly amenable to reuse.”
As in the US, Gregory says, there can be difficulty with the plumbing codes. “There is a plumbing code that applies to individual property, at least here in this part of Canada. When it spans multiple sites, then it comes under the jurisdiction of a state or provincial authority, and that gets difficult to permit. They don’t know what to do with it yet. They don’t know how to classify it, and that’s where it gets difficult.”
But for individual properties, he reports some good activity. “We’re seeing in bigger cities that have lots of LEED applications; they’re washing their vehicles and equipment with this water onsite. And there are some academic institutions that are kind of showing off with what they can do.”
As others have noted, Gregory also reports that a number of homeowners with rain barrels prefer to keep them filled, in anticipation of drought conditions. “As a stormwater management thing, that’s a no-no. You have to empty them before the storm comes.” He says that for larger systems—in strip malls, for example—the units are automated, which resolves this problem.
Gregory also addresses the issue of how to make use of rainwater harvesting in arid regions where there may be extended drought conditions. “That is where I think aquifer storage and recovery operations come in, like perhaps in Texas or Arizona. If you have the right aquifer conditions, you take the runoff and store it in the ground. Then when you need it, like in a drought period, you can just pump it on up. In places like India, I think they that. But there’s a cost to that, of course.”
Gregory reports some municipalities taking positive steps toward reasonable reuse of collected rainwater. “Slowly but surely, it’s encouraging to see places like transit commissions in big cities moving toward washing vehicles with stormwater. That’s a no-brainer. You don’t need high quality water for that. It’s not going as fast as I’d like it to, though.
“Another reason things aren’t going as fast as they might is that the payback period is just not tipping the scale,” at least for residential properties. Gregory notes, however, that for large public works facilities, payback shouldn’t be an issue.
“They have ample rooftops, and presumably clean parking areas. They can collect the water and wash their trucks, and use the water for construction projects and irrigation, whether onsite or just for water trucks for where they’re needed. That seems like an easy application.”
He also reports that LEED credits have been a help in getting commercial properties on board. “For the couple projects that I have been involved with, LEED was driving it. It is an important driver. We can claim some credits under the stormwater part. So on one project we had a green roof and a greywater system that did claim some credits. Absolutely, that is helping.”
While noting that such efforts can significantly reduce stormwater runoff, Gregory advises that rainwater harvesting is not a panacea. “It will never, ever replace the risk for flood control benefits, for the big storm events.
“You’re going to get those strong, intense rain events where everything is bypassing things, and flood control should be a city’s biggest priority—for both property and lives. LID and rainwater reuse is not going to help those types of things. But I am impressed what volume reduction you can get from these small facilities in large numbers.”
Bureaucracy, however, remains a problem. “We were involved in a study for a local government here,” says Gregory, “to look at how reuse fits into their policies and procedures, and that has just gone nowhere, in three years. It’s just so frustrating.
“We have cheap water here in Canada, let’s face it. We have a lot, which means we waste it. So that’s frustrating. I put a lot of my hope in treatment technologies.”
Gregory is of the opinion that once more efficient methods of treatment are available, both for stormwater and rainwater, the industry will grow as it needs to. “Despite my negative opinion that it’s not happening fast enough, it’s so exciting,” he adds. “I’ve been in stormwater for 22 years now, and this is a great time to be a stormwater engineer.”
By: Steve Goldberg