Morrison Creek: a spring-fed stream without stormwater outlets sustains aquatic life

Morrison Creek: a spring-fed stream without stormwater outlets sustains aquatic life

by | Dec 13, 2018

Janet Gemmell, president of the Morrison Creek Stream Keepers, along the creek near Puntledge Park — George Le Masurier photo

Morrison Creek: a spring-fed stream without stormwater outlets sustains aquatic life

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This is the fourth in a series about how traditional municipal systems to handle urban stormwater runoff has affected Comox Valley streams, and the trend toward more natural solutions. The series examines and compares stormwater effects on three streams: Golf Creek, Brooklyn Creek and Morrison Creek.

Not all of the water from glacier-fed Comox Lake drains out through the Puntledge River. Huge volumes of cold clear water from the bottom of the lake infiltrate deep into the ground and begin seeping downhill on a multi-year journey toward the ocean.

But just east of Bevan Road, at the foot of a steep slope dropping about 100 feet, some of this water resurfaces in the form of dozens of tiny springs wiggling themselves free of their underground routes. These waters pool up into wetlands and ponds and grow into little tributaries that eventually all come together in one main channel.

We call that channel, Morrison Creek.

Morrison Creek flows from these headwaters at the outer edge of Cumberland, down through rural Area C of the Comox Valley Regional District, running somewhat parallel to Lake Trail Road. Then it travels through the City of Courtenay and joins the Puntledge River at Puntledge Park.

Like Brooklyn Creek, the Morrison travels through three separate municipal jurisdictions. But unlike Brooklyn — and most certainly unlike the polluted and channelized Golf Creek — the Morrison is alive with aquatic life in its cool, clean water.

The creek supports four of the five species of salmon all the way up to its headwaters. There are ample trout throughout the system, and large freshwater mussels flourish here. It is also home to a strange creature called the Morrison Creek lamprey, a unique variation of the common Western Brook Lamprey found on the coast.

And the Morrison’s waters run plentiful and steady all year around.

So why is Morrison Creek so much healthier than Brooklyn or Golf creeks?

The simple answer is that the Morrison’s headwaters are pristine and intact, and where it travels through developed areas, the creek remains mostly natural with adequate riparian cover.

But there’s also another reason.

More than 48 stormwater outlets empty into Brooklyn and Golf creeks — about two dozen each. And from those outlets flow oils, pesticides, animal and human feces and a variety of heavy metals and chemicals, many of which are toxic to wildlife. Golf creek gets an excessive amount of contaminants after a heavy rain because it drains the downtown commercial area of Comox.

By contrast, there are only two stormwater outlets into Morrison Creek, both near its termination in Puntledge Park and none come from a commercial area.

Saving the headwaters

The key to Morrison Creek’s success as a healthy waterway is the natural state of its vast headwaters. But that’s also the greatest threat to its long-term survival.

The headwaters area was originally logged in the 1920s and again in the 1960s. If the new growth was logged again, it would inflict cumulative negative impacts on the creek and wildlife habitat.

When the Comox Valley Lands Trust (CVLT) completed a science-based conservation plan several years ago, the Morrison headwaters emerged as a top priority to acquire and conserve. Not only does the nearly 600-acre area support significant biodiversity, it also plays a critical role in sustaining water quality in the rest of the Morrison watershed.

The headwaters are bordered by the Inland Highway to its west, north by Lake Trail Road and west by Bevan Road. The land is mostly owned by Hancock Timber Resource Group, a logging company known as Comox Timber, with few exceptions:

There are homes on two small rural lots and two undeveloped properties, and a small piece of wetland purchased by the province during construction of the Inland Highway that was later protected at the Linton Conservation Area.

“We have a good creek. We’d like to keep it that way.”

There is also a 55-acre parcel privately owned since the 1960s by the late Beecher Linton. His family has agreed to sell the land to the CVLT and has given the nonprofit ample time to raise the $870,000 purchase price.

“The Linton heirs appreciate the natural value of the land and Beecher’s history on it,” Jan Gemmell, president of the Morrison Creek Stream Keepers, told Decafnation.

Although the CVLT and the stream keepers hope to ultimately preserve the entire Morrison watershed, the Linton property is a good start. It contains critical salmon habitat, many of the main creek’s tributaries and wetlands important to diverse wildlife.

“As much as the creek has been muddled around with in its lower reaches, the creek has a really good, continuous source of cool, highly-oxygenated spring water that doesn’t dry up in the summer,” Gemmell said.

The best way to preserve Morrison Creek, she said, is to let the headwaters land regrow.

Tim Ennis, executive director of the CVLT, said the Linton property resides in the Comox Valley Regional District, which contributed 35 percent of the purchase price, and will eventually manage it as a nature park.

“The remainder of the Morrison headwaters is in the Village of Cumberland,” Ennis said. “It will be harder to acquire because the village doesn’t have the resources to help as much as the regional district did.”

Threats from multiple jurisdictions

While logging or development of the Morrison Creek headwaters would be devastating, there are also other threats.

The creek flows through Roy Morrison Park, a 20-acre parcel managed by the City of Courtenay, but owned by the Nature Trust of BC with a covenant to ensure its long-term natural state. But much of what people think of as Morrison Park is actually school board property.

Recent attempts by the school board to close Ecole Puntledge Park Elementary have raised concerns about the possibility the district would someday sell the lands.

In the Arden Road area, a City of Courtenay Local Area Plan specifies 30 metre setbacks from the stream, where no development can occur. However some relaxation of this standard has occurred, Gemmell said.

Gemmell said there are also concerns about the rural and sparsely populated areas west of Powerhouse Road, which lies in Area C of the regional district.

If smaller lot development was allowed in this area, with accompanying paved roads, gutters and storm drains, it would negatively impact the creek.

“Even larger country estate lots, developments where a single large home is built, but the whole lot is cleared, drained and leveled, remove natural sponge areas and affect creek flows,” Gemmell said. “We have a good creek. We’d like to keep it that way.”

Alana Mullaly, the CVRD’s senior manager of planning and protective services, said the lands in and around Morrison Creek are designated “settlement expansion areas” in the Regional Growth Strategy. Both the RGS and the zoning within the settlement expansion areas establish a minimum subdivision parcel size of four hectares (approximately 10 acres), she said.

“Settlement expansion areas are intended as reserve areas for future growth needs of the municipal areas,” Mullaly told Decafnation. “Higher intensity development in these areas would only be permitted if and when they are incorporated into a municipal area, publicly serviced (sewer and water) and a local area plan with companion zoning is prepared.”

However, Morrison Creek is also protected under the Riparian Areas Regulation.

“We implement that provincial regulation using the development permit tool,” Mullaly said. “We are also looking at how to better protect species at risk, such as the Morrison Creek Western Lamprey, through the development permit tool (e.g. implementing the Species at Risk Action plans).”

Morrison supports biodiversity

Beavers make dams on many of the spring-fed tributaries of Morrison Creek in its headwaters. These dams create natural retention ponds that allow water to soak back into the ground and also prevent overflows after heavy rains or snowmelt.

That’s what man-made retention ponds attempt to do. They prevent rushes of water into the creek that could cause erosion and disturb fish spawning grounds.

More than 48 stormwater outlets empty into Brooklyn and Golf creeks. By contrast, there are only two stormwater outlets into Morrison Creek

And the steady flow makes biodiversity in the creek possible. Besides salmon, trout, mussels and lampreys, there are also Red-legged frogs, Great Blue herons and Pacific Sideband snails living in the riparian areas of the creek. Of course, beavers, deer, bears and other wildlife live in the headwaters.

Perhaps the most unusual species found in the stream is the Morrison Creek lamprey, a unique variation of the common Western Brook Lamprey found in streams along the coast. It is only found in Morrison Creek.

The first five years of the lamprey’s life are spent immersed in the silty bottom of the creek or its ponds. When it emerges, the Morrison lamprey metamorphoses into both parasitic and non-parasitic forms.

Stream keepers do their part

To keep any stream healthy requires a dedicated and active group of volunteers. The Comox Valley is fortunate to have a large number of stream keeper groups, all with a high level of expertise, who monitor local creeks and advocate for their protection.

The Morrison Creek Stream Keepers was founded in 1996. It has seven board members and about 20 to 25 active volunteers, and has done numerous in-stream improvement projects. They have removed a dilapidated wooden fish ladder and replaced it with a boulder-based riffle, which creates fish habitat. Major fish passage work has been done at Comox Logging Road, and the volunteers have created a pond in Puntledge Park and done annual smolt counts and collecting data on spawning fish.

The Morrison stream keepers contract out the expert design and technical work to Current Environmental, of Courtenay. Funds for the project have come from other environmental nonprofits. The City of Courtenay has not provided matching grants in the past, as Comox has done for the Brooklyn Creek Watershed Society.

What’s next

The Comox Valley Lands Trust has almost raised enough funds to complete the purchase of the Linton property, but not nearly enough to preserve the entire Morrison Creek headwaters. Nor have negotiations begun with Comox Timber for the remaining 500 or so acres.

But the CVLT is working with BC Lands Trust Alliance to advocate for taking the Gulf Island Natural Areas Tax Exempt Program province wide. The Gulf Island’s program is a pilot project that eliminates property tax on any portion of the property where a covenant is placed on its natural assets.

For now, Morrison Creek is thriving, and that status could be assured with the protection of its headwaters; a wilderness oasis unaffected by human disturbances about the size of Vancouver’s Stanley Park.

And there’s something else important about Morrison Creek that doesn’t often get mentioned. The origins of the creek, natural springs created by groundwater seepage from Comox Lake and Maple Lake, remind us of the interconnectivity of the greater Comox Valley Watershed, and how it all impacts not just creeks and streams, but also our drinking water and the various ways people enjoy our waterways.

 

WHAT’S A RIFFLE?

A shallow area where water passes over rocks or other structures, creating turbulence or small disturbances in the flow of water. Because the disturbances increase the amount of dissolved oxygen, and there are many small spaces in the rocks and other structures, riffles provide good habitat for macroinvertebrates (e.g. snails and insects, such as dragonflies).

 

SOME MORRISON HISTORY

In the 1920s, the stream was called Millard Creek. At least one other local creek has the same name, and there’s Mallard Creek to confuse things further. The Morrison family owned property from Arden Road to Willemar Avenue and from 1st Street to Lake Trail Road. 

 

BEECHER LINTON PROPERTY

In the 1870s, settlers worked with Reginald Pidcock to build a ditch and flume, diverting water from Morrison Creek, near the present day foot bridge in Roy Morrison Park to a mill pond in what is now the Shoppers Drug Mart parking lot in Courtenay. The water powered Pidcock’s new lumber mill at the foot of Sixth Street. There is a photo of the old mill hanging in Home Hardware (Central Builders). A portion of that ditch remains visible today. Part of it was reactivated in the 1980s to enhance juvenile coho habitat.

 

LEUNG MARKET GARDEN

The Linton Property includes the location of the historical Leung family farm. During the early 1900s, the Leungs supplied the main agricultural products that sustained the early settlers. The China Trail, was a wagon road that linked the Leung farm with the growing communities of Cumberland and Courtenay.

 

GWILT LOGGING COMPANY

The remains of a sawmill operated by the Gwilt Logging Company can still be seen in the Linton Property portion of the Morrison Creek headwaters. The mill burned down in the early 1920s, but pieces of it can still be seen.

 

SETTLEMENT EXPANSION AREAS

The settlement expansion areas have been identified as future growth areas for the adjacent urban municipalities. Development is limited in these areas to ensure the phased and timely development of lands that is consistent with the goals and objectives of the member
municipalities. The areas contain a broad range of uses . Generally, significant change to the existing land use or further subdivision that increases the density, impact or intensity of use of land is not envisioned until these areas have been amalgamated with the adjacent
municipality, except in those areas where public infrastructure is required to address environmental issues. — From the Rural Comox Valley Official Community Plan

 

HOW YOU CAN CONTRIBUTE

To make a donation to the Comox Valley Lands Trust effort to acquire the Morrison Creek headwaters, click here

To volunteer with the Morrison Creek Stream Keepers, click here

 

 

More

Here’s the latest Comox Valley local government election results

Mayor Bob Wells and all Courtenay incumbent councillors have been re-elected. Evan Jolicoeur has also been elected. Manno Theos has lost his seat.

Jonathan Kerr, Jenn Meilleur, Steve Blacklock, Chris Haslett, Ken Grant and Maureen Swift have been elected in Comox.

Vickey Brown has been elected mayor in Cumberland, defeating long-time mayor and councillor Leslie Baird.

Voting down -20.6% in Courtenay, -22.3% in Comox and -50.9% in Cumberland.

Full results with Electoral Areas A, B and C, school board and Islands Trust results in the morning.

Daniel Arbour in Area A and Edwin Grieve in Area C won by wide margins. Richard Hardy defeated Arzeena Hamir by 23 votes.

Shannon Aldinger topped the polls in races for SD71 school trustees.

Click the headline on this page for complete results and voter turnout.

Brooklyn Creek: it’s surviving, but faces old and new threats from upstream development

Brooklyn Creek: it’s surviving, but faces old and new threats from upstream development

by | Dec 10, 2018

Brooklyn Creek Watershed Society President Robert Deane at the mouth of the stream     Photo by George Le Masurier

Brooklyn Creek: it’s surviving, but faces old and new threats from upstream development

BY GEORGE LE MASURIER

This is the third in a series of articles

The Comox Valley is fortunate to have several waterways in its urban environment that support salmon and other fish. But it also has many that are either dead or an aquatic life support.

Brooklyn Creek in Comox had an usually big run of salmon two years ago, but it normally can only manage to sustain a smattering of fish. But it does still have fish, primarily thanks to an active group of stream keeper volunteers, who have grand plans to revitalize the creek with a pathway from Comox Bay to Courtenay.

They face difficult challenges from multiple jurisdictional governance, an uncertain future of the creeks’ great asset and a powerful developer operating in its headwaters.

The problems for Brooklyn Creek begin at its headwaters

Until about 30 years ago, most of the rainwater that fell in the natural forest at the top of Ryan Road Hill was soaked into the ground, about 50 percent. Some evaporated back into the atmosphere, about 40 percent.

And about 10 percent trickled down the surface of the southeast slope toward Comox Harbour, forming many tiny tributaries that eventually came together as Brooklyn Creek.

It would have taken days, perhaps weeks, for a drop of surface water in the creek to travel from the top of the hill to Comox Harbour. The water that had soaked into the ground wouldn’t have reached the harbour for years.

But then the Crown Isle golf course and residential community was built by the Silverado Corporation, followed by the Cascadia Mall and other commercial development further up the slope. With the trees and natural vegetation replaced by impervious surfaces, the hydrology changed.

Map of Brooklyn CreekNow, only about 30 percent of the rain evaporates, and only 15 percent or less soaks into the ground. That leaves more than 55 percent of the rainfall to runoff from streets and roofs and cause flooding, if it isn’t somehow managed.

So Crown Isle captures this excess rainfall through storm drains opening into large underground pipes, and dumps it all into Brooklyn Creek. Lower down the slope to Comox Harbour, the Town of Comox does the same thing.

There are, in fact, 24 stormwater pipes emptying into Brooklyn Creek today, carrying water contaminated with oil and heavy metals left by automobiles, pesticides, herbicides and animal feces.

And the pipes gush toxic water at such a high volume and fast rate after rainfalls that, without the efforts of the Brooklyn Creek Watershed Society, the stream today would be dead.

That it can still sustain a small spawn of fish today is a miracle.

Brooklyn Creek Watershed Society

“That the stream can sometimes support salmon and trout in an urban environment is just magic,” Robert Deane, president of the Brooklyn Creek Watershed Society, told Decafnation. The group was formerly known as the Brooklyn Creek Stream Keepers.

But it’s more than magic, it’s long hours of hard work by a dedicated group of volunteers. For the last 12 years, society volunteers have done in-stream work on the lower creek section within the Town of Comox to create new fish habitat.

The volunteers have replaced what was destroyed by erosion from raging flows after rainfalls or by unwitting property owners along the creek who engaged in “stream cleaning.” They hauled in logs every year to create fish passages, rock dams, pools and riffles to mimic naturally occurring spawning grounds.

They have slowly rerouted the walking paths that follow the creek from its mouth up to Noel Avenue, near the private elementary school, to move them away from the creek and allow more natural vegetation to cover its banks. Fish need shade and cool water temperatures.

They do an annual smolt count to monitor the health of the creek for wildlife.

And they launched a new program this year on Earth Day to tackle the invasive species, such as English Ivy, that are crowding out natural vegetation. The stream keepers spent two days hacking away invasive growth and only cleared 50 metres of the stream. But their work filled a two-ton truck, donated by the Town of Comox to haul away the debris.

“The town has been a good partner,” Deane said. “Our aims and the town’s aims are aligned.”

To curtail flooding and downstream erosion of creekside properties, the town spent nearly $2 million in the early 2000s to install a flow diverter near Pritchard Road with a threshold gate. After heavy rainfalls, as much as 70 percent of the stormwater gets diverted into a pipe that discharges directly into Comox Harbor near Filberg Park.

But both Deane and another stream keeper, Larry Jefferson, suspect it’s not working as well as it used to, taking flow out of the creek that it needs in the drier summer months to sustain life.

“The diverter requires maintenance, and it soon will have to be rehabilitated,” Jefferson said.

The stream keepers apply for grants every year to support their projects and the town usually matches them. Combined, they have spent over $100,000 in the last 10 years, he said.

All of this work on the bottom end has made the creek more resilient to the upstream issues in Courtenay and Area B.

A multi-jurisdictional dilemma

Most people think of Brooklyn Creek as a stream that flows through Comox. That’s probably because the Comox section is mostly visible and offers a creekside pathway down through Mack Laing Park to its mouth into the harbour.

But Brooklyn Creek actually starts in Courtenay at Crown Isle and then travels through Area B on the northwest side of Anderton Road and across Birkdale Farm, before crossing Guthrie Road into Comox.

Brooklyn's three jurisdictionsAll three local governments don’t necessarily have the same attitude toward the creek, or urban creeks in general. And that makes it hard to create a common 100-year plan for the entire watershed.

In August, the Partnership for Water Sustainability in B.C. (PWSBC), released a Ecological Accounting Process (EAP) report that showed the monetary value of Brooklyn Creek to the Town of Comox in terms of its stormwater conveyance system — to oversimplify, what the town would have to spend if the creek didn’t exist.

Tim Pringle, chair of the EAP initiative for PWSBC, says application of the EAP provides local governments with a way to select solutions for drainage infrastructure that draw from both nature’s assets and engineered works.

“This would accomplish two desired outcomes: protect watershed health (hydrological functions); and achieve a balanced approach  to funding life-cycle costs,” he said.

The Brooklyn Creek EAP report praises the cooperation between the town and the watershed society, and notes that Courtenay and the CVRD do not have Brooklyn Creek management plans.

“It’s the first EAP in B.C. for a natural asset that resides in multiple jurisdictions,” Vanessa Scott, a member of the watershed society, told Decafnation. “It was a pilot project showing the way forward for municipalities to adapt to climate change.”

The EAP report measures the creek’s value in terms of property values, green space, stormwater conveyance, volunteers hours and grant funding. It was presented to Comox Council in August.

But when the council was asked at the end of the presentation to create a Brooklyn Creekshed plan, no council member would make the motion, Scott said. The council instead asked staff to make a recommendation sometime this fall.

The main problem, as Deane sees it, is that the problems created for the creek by Crown Isle and other headwaters developments don’t impact anyone in Courtenay. All the impacts are felt by downstream property owners in Area B and Comox.

“I would like to have some Crown Isle residents, or just Courtenay residents, join our group,” Deane said.

Scott says people should not assume their local governments are looking after their streams.

“The lack of a management plan for upper and middle Brooklyn Creek threatens all the work done in Comox,” she said. “Comox is a stakeholder in Courtenay development, but there’s no multi-party management plan.”

Birkdale Farm

Guy SimGuy Sim runs a dairy farm on about 190 acres, most of it bordered by Guthrie, Knight and Anderton roads. It’s a family farm started by his grandparents, George and Mabel Laban, in 1920. His father, Alex Sim, took it over in 1950 and passed it on to Guy in 1970.

The farm acts as a giant sponge that soaks up some of the creek’s water into the ground, and provides the riparian vegetation around the creek that fish need.

Brooklyn Creek cuts a Z-shaped swath across the main farmland, flooding portions of his field many times every year. It didn’t used to flood so often.

The creek used to only flood after an rare heavy rain. Now — after the development of Crown Isle — it takes much less rain to cause flooding. Sim said even a half-inch of rain causes flows in the creek to breach its banks.

In one spot where a farm road for moving equipment crosses the creek, there used to be two 36-inch culverts that handled peak flows. Sims added a third 36-inch culvert to handle the increase in creek volume coming from the deforestation of Crown Isle and Lannan Forest, and they still overflow.

The flooding kills his grass if the water lingers more than a day or two, and after a flood swans and ducks fly in to eat the submerged grass when it’s easy to pull up.

He needs the grass to feed herd of about 230 Ayrshire cows. He has to purchase additional feed to get through the winter.

And when it floods, Sim can’t let his cow graze in those areas because their hooves would tear up the soggy ground. Nor can he move his equipment in such soft ground.

And it’s not just flooding that causes Sim hardships. Garbage like plastics and other debris get into the creek and spill out onto his grazing land.

Sim has fought with local governments for years, He’s asked for a pond where the creek enters at the northwestern portion of this property, something a consultant report recommended many years ago. But it was never done.

Facing new threats

Despite the Crown Isle development and the loss in 2008 of the Lannan Forest, a 40-acre parcel of second-growth trees adjacent to Longland’s Golf Course, which is a secondary headwaters of Brooklyn Creek, the stream is surviving, if barely.

But there are new threats on the horizon.

Silverado has purchased Longlands property. The Crown Isle developer says they have no plans to redevelop the par-three golf course, but a future development there would pile additional pressure on the creek.

And Guy Sim is nearing retirement age, but he has no family to take over the farm. The Brooklyn Creek Watershed Society worries about what might happen to this prime land in the Agricultural Land Reserve if Sim decides to sell.

Sim himself doesn’t know what he will do when that time comes.

“I’m working on a plan,” he told Decafnation.

Chris Hilliar, a former Comox officer with the Department of Fisheries and Oceans, said Sim’s farm is “the best thing Brooklyn Creeks has going for it.”

“It would be a travesty if that place is ever developed,” he said.

Looking ahead

Robert Deane, president of the Brooklyn Watershed Society, says there is a vision that could save Brooklyn Creek from dying the “death by a thousand cuts” that has killed other urban streams, like Golf Creek.

Deane and others envision extending the walking trail along the creek all the way through Sim’s farm, along the right of way next to Idien’s Way and into Crown Isle.

When the Comox Valley Regional District installed the new Hudson trunk sewer line, from Crown Isle along Parry Place and Idien’s Way, the steam keepers convinced them to set it off to the side of the road and create a right of way for an eventual trail. The creek follows the same route.

“That may seem contrary to the objective of keeping the creek natural,” Deane said. “But if people use the pathway and see the creek, then they will own it and be supportive.”

“The Tsolum River was brought back life,” Deane said. “All we have to do is give them good, clean water, and the fish will do the rest.”

 

“Brooklyn Creek is a small creekshed whose hydrology and ecological services have been altered and degraded by decades of land use impacts,” — Tim Pringle in the preface to Assessing the Worth of Ecological Services Using the Ecological Accounting Process for Watershed Assessment: Brooklyn Creek Demonstration Application in the Comox Valley.

 

 

WHAT IS THE ECOLOGICAL ACCOUNTING PROCESS (EAP)?

Ecological Accounting Process — “The EAP approach begins by first recognizing the importance of a stream in a natural state and then asking: how can we maintain those ecological values while allowing the stream to be used for drainage,” says Jim Dumont, Engineering Applications Authority with the Partnership for Water Sustainability in BC.

“If communities are to truly benefit from use of nature’s assets to provide vital community infrastructure services, then two issues must first be recognized as  being impediments to changes in practice.”

“The first issue is the widespread lack of understanding of the relationship between flow-duration and stream (watershed) health.”

“The second issue is the widespread application of a standard of practice that has led to the current situation of degraded streams, and that has little connection to real-world hydrology.”

 

 

HOW YOU CAN CONTRIBUTE

JOIN — You can join the Brooklyn Creek Watershed Society or donate to them.

DONATE — The Comox Valley Conservation Partnership accepts members and donations. The CVCP was formed in 2008, after concern was raised that there was no regional plan in the Comox Valley to prioritize and protect sensitive ecosystems on private land.  The CVCP brings together local community-based groups and other stakeholders to support their projects and provide a voice for the value of conservation in our natural areas.  The CVCP is administered by a program coordinator under the direction of the Comox Valley Lands Trust

 

 

STORMWATER GLOSSARY

HYDROLOGIC CYCLE — The endless circulation of water. From the beginning of time when water first appeared, it has been constant in quantity and continuously in motions. The same water molecules have been transferred time and time again from the oceans and the land into the atmosphere by evaporation, dropped on the land as precipitation and transferred back to the sea by rivers and ground water.

LOW-IMPACT DEVELOPMENT(LID) — The systems and practices that use or mimic natural processes that result in the infiltration, evapotranspiration or use of stormwater in order to protect water quality and associated aquatic habitat.

RAIN GARDEN — A miniature wetland in a residential setting, lower than the adjacent grade to collect rainwater from roofs, driveways or streets, thus allowing infiltration into the ground.

RIPARIAN AREAS REGULATION — Riparian areas link water to land. They border streams, lakes, and wetlands. The blend of streambed, water, trees, shrubs and grasses in a riparian area provides fish habitat, and directly influences it. Read more here

STREAMSIDE PROTECTION REGULATION — A fish protection act preceding the Riparian Areas Regulation. Read more here

RUNOFF — Excessive rain or snowmelt that produces overland flow to creeks and ditches. Runoff is visible flow of water in rivers, creeks and lakes as the water stored in the basin drains out.

TRANSPIRATION — Water vapour emitted from a plant. Every day an actively growing plant transpires five to 10 times as much water as it can hold at once.

 

 

 

 

 

 

 

Can green innovations stop polluted stormwater from killing our waters?

Can green innovations stop polluted stormwater from killing our waters?

by | Nov 29, 2018

Grasses ready to plant in the rain gardens that line Courtenay’s Fifth Street renovation. George Le Masurier photo

Can green innovations stop polluted stormwater from killing our waters?

By

First in a series

The Department of Fisheries and Oceans slapped a ban on both personal and commercial shellfish harvesting throughout Baynes Sound this week because Sunday’s heavy rainfall, which came “after a prolonged dry spell,” will “adversely affect marine water quality.”

It’s a regular notice the DFO issues around most urbanized regions of Vancouver Island this time of year, and it usually lasts for more than a few days.

Why? Because every time it rains after a dry period, it’s as if a giant toilet flushes animal feces, fertilizers, pesticides, oils, road salts, heavy metals and other contaminants into our municipal stormwater systems, which in turn send torrents of polluted water directly into our watersheds, killing fish, eroding property and making our waters unsafe for shellfish harvesting.

This is not a new problem. For the past 100 years, urban development has replaced natural vegetated land with impervious surfaces like roads and parking lots. This has diminished the amount of rainwater absorbed into the ground and reduced the dispersal of precipitation back into the atmosphere from trees, which do the heavy lifting, and other plants, via a process called evapotranspiration.

As a result, surface runoff has become the primary means of rainwater drainage.

To control flooding, Comox Valley municipalities, like other local governments around the world, invested millions of dollars over time in underground infrastructure to channel rainwater runoff into rivers or streams. This not only polluted these waterways and killed wildlife, but the increased volume and speed of the moving water caused erosion and other flooding risks by altering the natural hydrologic cycle.

Even today, when streams get in the way of development, they are often diverted into pipes and buried beneath buildings and parking lots, which greatly increases the flow rate of stormwater and is more likely to cause erosion in a stream’s natural sections.

Comox’s Golf Creek is a prime example. Eighty-six percent of the once flourishing natural stream flowing into Comox Harbor has been buried beneath residential streets, the Comox Mall and the Berwick Retirement Community. It’s polluted after heavy rains and a downstream property owner is currently suing the town over erosion caused by the creek’s sudden fast flows and large volumes.

Former Comox Department of Fisheries and Oceans Officer Chris Hilliar says the problem with stormwater runoff is just the story of urban development gone wrong.

“Humans have an order to their development process: first we log it, then we farm it, then we pave it,” he told Decafnation. “Fish can get along with forestry, if it’s done right; they can get along with farming, if it’s done right; but, concrete and pavement are killers, a death knell to streams and the aquatic life within them.”

The list of problems caused by contaminated stormwater runoff goes beyond erosion and flooding.

Stormwater runoff is the main reason why many urban streams are devoid of fish or linger on aquatic life-support, and why these streams can pose a public health risk for children who play in them.

Stormwater runoff is the top non-point source of oil from human activity into North America’s oceans, according to the National Research Council. And it has been identified as the source of polychlorinated biphenyls (PCBs) that are harming British Columbia’s killer whale population, according to another NRC paper.

“It’s an iterative process. Every municipality is on a continuum of change; modernizing, moving forward with advances in knowledge” — Ryan O’Grady

It sounds like an irreversible situation whose remedy is too expensive to undertake. In a 2012 meeting with the Comox Valley Conservation Partnership, Town of Comox Public Works Superintendent Glenn Westendorp said the municipality was facing about $160 million in unfunded infrastructure liabilities that include fixing and replacing stormwater pipes.

“We know the bill is coming to us down the road and we don’t see the means of paying for it,” Westendorp was quoted as saying in the society’s newsletter.

But a shift in thinking about traditional methods of handling stormwater began to occur during the 1980s and 1990s toward constructing wetlands and ponds to detain rainwater long enough for contaminates to settle out and allow some water to infiltrate back into the ground. This gave hope there was a means of cleaning our streams and extending the life of municipal infrastructure.

Today, there’s been a further shift toward a recognition that nature itself cleans and controls rainwater better than any engineered solution. This new emphasis attempts to imitate nature with pervious surfaces, downspout disconnection, rain gardens, bioswales, green roofs and rainwater harvesting. And the prospects have excited many municipal engineers and environmentalists.

But the wheels of change turn slowly.

“Any change in regulations, such as we’re seeing for stormwater, does not go from 0 to 100 miles per hour,” Ryan O’Grady, Courtenay’s director of engineering services told Decafnation. “It’s an iterative process. Every municipality is on a continuum of change; modernizing, moving forward with advances in knowledge.”

And change also requires elected officials to pass new policies and update bylaws that give municipal staff the authority to require LID and green infrastructure. Without legal regulations, not all developers and property owners will embrace the movement, because these rainwater features take up space that some are loathe to forfeit.

Local governments have made progress

Almost all BC communities now follow a method that measures its organizational capacity for maintaining infrastructure to ensure sustainable service delivery. It’s a framework that Courtenay Chief Administration Officer David Allen helped create in his role as Co-Chair of Asset Management BC.

And Courtenay has launched a pilot project with the Municipal Natural Assets Initiative, which attempts to value a municipalities’ natural assets and is working with the Public Sector Accounting Board to change accounting methods to allow for this approach.

“We are using these methods to develop ways to use a combination of engineered assets and natural assets to replace our existing stormwater and flood management systems,” Allen told Decafnation.

In its recently completed renovation of Fifth Street, the City of Courtenay narrowed the roadway (reducing impervious surface area) and added rain gardens to capture runoff and encourage infiltration. The city plans to develop its first Integrated Stormwater Management Plan in 2019 that could set a new, greener standard for stormwater management in the municipality.

The Town of Comox has developed a Stormwater Management Plan for the North East Comox Neighbourhood — lands near the Comox Airport — that incorporates the latest best practices for low-impact development (LID) and green infrastructure regulations, although these have not yet been made into enforceable bylaws.

Cumberland added bioswales along Bevan and Cumberland roads when they were renovated in 2017, and may include rain gardens in its upcoming downtown redevelopment plan.

Other communities have taken big leaps forward

The City Victoria has created a new utility tax to fund its future cost of maintaining stormwater infrastructure and to encourage residents and developers to adopt green infrastructure and low-impact development designs. In most communities, stormwater infrastructure costs are paid out of general revenue.

Victoria residents are now taxed separately for the stormwater that leaves their property. In other words, the more impervious surfaces  and the fewer onsite mitigations you have, such as rain gardens and rock pits, the more you will pay.

Victoria joined Richmond, BC, and hundreds of other cities across Canada and the world that now expect residents and developers to manage their own rainwater, lessening the burden on municipalities.

It’s the theory behind Chinese landscape architect Kongjian Yu’s “sponge cities” concept, a way to describe the capacity of an urban landscape to absorb rainwater naturally. Major world cities have jumped on the idea. Berlin, Germany, adopted a city-wide Sponge City Strategy in 2017.

Since 2009, Toronto, Ont. has required buildings over 2,000 square metres to have green roofs, which use several layers of soil to grow plants that capture and release rainwater, slowing the rush of water through the city’s stormwater pipes.

The list and variety of innovations for managing stormwater through green infrastructure is long and growing.

Municipalities in the Comox Valley and elsewhere have focused heavily on drinking water and wastewater treatment in the past. But now their attention has turned sharply toward improving how we manage stormwater.

The change may seem to be coming too late for streams, like Golf Creek in Comox, that are almost entirely buried and channelized. But challenging initiatives like the 100-year plan to restore Bowker Creek in Victoria and the campaign to save the Morrision Creek headwaters between Courtenay and Cumberland may someday restore fish in our streams and keep our waters open to shellfish harvesting.

 

GLOSSARY OF STORMWATER TERMS

 

Bioswales — A stormwater conveyance system similar, but larger than a rain garden (see below).

Evaporation — As water is heated by the sun, surface molecules become sufficiently energized to break free of the attractive force binding them together, and then evaporate and rise as invisible vapour in the atmosphere.

Green infrastructure — Any natural or built system that provides ecological benefits and help to maintain pre-development hydrology. It encompasses natural features like streams, wetlands, forests and parks, as well as engineered systems that manage urban runoff.

Groundwater — Subterranean water is held in crack and pore spaces. Depending on the geology, the groundwater can flow to support streams. It can also be tapped by wells. Some groundwater is very old and may have been there for thousands of years.

Hydrologic cycle — The endless circulation of water. From the beginning of time when water first appeared, it has been constant in quantity and continuously in motions. The same water molecules have been transferred time and time again from the oceans and the land into the atmosphere by evaporation, dropped on the land as precipitation and transferred back to the sea by rivers and ground water.

Low-impact development (LID) — The systems and practices that use or mimic natural processes that result in the infiltration, evapotranspiration or use of stormwater in order to protect water quality and associated aquatic habitat.

Percolation — Some of the precipitation and snow melt moves downwards, percolates or infiltrates through cracks, joints and pores in soil and rocks until it reaches the water table where it becomes groundwater.

Precipitation — Rain, snow or hail from clouds. Clouds move around the world, propelled by air currents. For instance, when they rise over a mountain range, they cool, becoming so saturated with water that water begins to fall as, snow or hail, depending on the temperature of the surrounding air.

Rain garden — A miniature wetland in a residential setting, lower than the adjacent grade to collect rainwater from roofs, driveways or streets, thus allowing infiltration into the ground.

Runoff — Excessive rain or snowmelt can produce overland flow to creeks and ditches. Runoff is visible flow of water in rivers, creeks and lakes as the water stored in the basin drains out.

Transpiration — Water vapour is also emitted from plant leaves by a process called transpiration. Ever day an actively growing plant transpires five to 10 times as much water as it can hold at once.

Water table — The level at which water stands in a shallow well.

 

 

Roger Kishi adds a different view to local government

Roger Kishi adds a different view to local government

by | Sep 26, 2018

Roger Kishi, a Japanese-Canadian directing housing programs for urban Aboriginal people in the Comox Valley, hopes to continue his passion for affordable housing in Cumberland and across the region. And he wants to finish the village’s several major infrastructure projects

 

Roger Kishi has a passion for affordable housing. It’s his day job as the director of Homeless & Housing Programs for the Wachiay Friendship Centre, and one of his main areas of focus for a third term on the Cumberland Village Council.

Since moving to the Comox Valley in 2000 from North Vancouver, Kishi has worked at Wachiay, which provides supports and services to the urban Aboriginal population.

Kishi himself is a fourth generation Japanese-Canadian, and currently the only non-caucasian elected official in the Comox Valley. He hopes voters will elect other candidates of diverse ethnicity this year.

“We bring a different perspective to local government,” he told Decafnation.

Kishi enjoys the complexity of issues that a council member must understand and handle, and making an overall contribution to how the community functions.

He’s proud of initiating the Comox Valley’s only off-leash dog park in his first term. It’s not only well used by people from around the Valley, but it’s now home to pet-related events.

And the village has added nearby skate and jump parks, all part of the parks master plan.

FURTHER READING: For more interviews with candidates, go to our Elections 2018 page

He points to other accomplishments with his council colleagues like the redevelopment of six blocks of Dunsmuir Avenue, part of a larger project to separate the village’s stormwater and sewer systems.

He notes the village’s gateway improvements that include roadside landscaping and treed medians. It was funded by the Comox Strathcona Solid Waste committee because Cumberland hosts the region’s main landfill and recycling location, which impacts roads and other infrastructure.

Kishi is particularly pleased with the successful outcomes of a village initiative to install water meters at every household, and at no cost. It was paid for by provincial grants.

He said the meters were not a money grab, but a conservation measure. They have pinpointed leaks in the system that were wasting immense quantities of water in some cases and simply made people aware of their consumption.

“Since the meters have been installed, our water consumption has gone down 40 percent,” he said. “That’s a success for our long-range water plans; we now have the capacity to expand.”

The village has recently added UV treatment to its drinking water, twinned pipes from its dams and drilled an auxiliary well to supplement its water security.

Kishi said villagers like the independence of having their own water system.

“It’s part of our historical nature: We look after our own,” he said.

The village also faces another large infrastructure project over the next four years: it’s wastewater treatment plant. The Ministry of the Environment has ordered the village to provide a higher level of treatment or face potentially large fines.

Kishi said council hopes to fund a large portion of the $9 million project with grants, but also needs voter approval from a referendum on the Cumberland ballot this fall to borrow $4.4 million to get construction underway.

“We have no choice,” he said. “The treatment plant has to be upgraded and we will have to borrow money.”

Kishi said the village has an affordable housing plan, they just have to implement it now.

Council can control how a development is done by using zoning and through housing agreements. In the latter case, for example, the village may trade variances for parking or setbacks the developer wants for a greater number of units priced at, say, 20 percent below market value.

“With housing agreements, we can make sure there is a mix of housing, that it’s not all single family houses,” he said.

Kishi said the Stoneleigh Estates development, currently underway in Coal Valley Estates, will provide 84 units of multi-family housing, which was entirely sold out in pre-construction sales.

Kishi said the village is building capacity to deal with its growth issues.

They have recently hired a manager of development services, a new senior planner and an economic development officer on a fixed term contract. His job is develop a plan to sustain the community’s economic future, and is looking at creating industrial lands.

In his day job at Wachiay, Kishi has been doggedly working for 10 years to build Braidwood in Courtenay, which will offer 35 units, 28 of which are bachelor suites that will rent either at the income assistance level of $375 per month or at 10 percent below market rate. The other six are one-bedroom units.

Wachiay and its partner M’akola Development Services, of which Kishi is also a board member, were the only responders to a Courtenay RFP willing to take a risk on building Braidwood.

“I’m sticking it out to make sure we get people into Braidwood,” he said.