Carrie Mishima, a communications advisor for the Department of Fisheries and Oceans sent this statement in response to questions from Northwest Coast Energy News:
· The proposal by the Kitimat LNG project uses a relatively new technique that is expected to improve aquatic habitat in Clio Bay. The bay has been used as a log handling site for decades, resulting in areas of degraded habitat from woody debris on the seafloor. The project will cap impacted areas with inert material to restore the seafloor.
· Capping at smaller-scale sites in Canada has shown that the technique has successfully restored low-value aquatic habitat.
· The project will implement standard and project-specific measures to protect fish and aquatic habitat and will conduct a five-year monitoring program to determine how well the habitat is recovering.
· Data from the monitoring program will be used to guide future habitat reclamation at impacted habitat sites. Reference sites are being established as benchmarks against which the capped sites can be measured.
· Site-specific standards for dissolved oxygen levels will be developed for the enhanced site by sampling a control site having similar habitat parameters.
· Detailed mapping has been done to identify the best areas for the soil placement and to protect sensitive habitat such as intertidal areas, rocky substrates and eelgrass beds.
· Other required mitigation measures will include analyzing the cap material to confirm it is free of contaminants and placing this material during appropriate tidal conditions to ensure accurate placement of the cap in accordance with design plans.
Special report: Clio Bay cleanup: Controversial, complicated and costly
Log booming operations at Clio Bay, August 21, 2013. (Robin Rowland/Northwest Coast Energy News)
Chevron, the company operating the KM LNG project at Bish Cove and the Haisla Nation have proposed that marine clay from the Bish Cove construction site be used to cap more than 10,000 sunken and rotting logs in Clio Bay. Haisla Chief Counsellor Ellis Ross says he hopes that using clay to cover the logs will help remediate the environmentally degrading sections of the Bay. The proposal has brought heated controversy over the plan, both among residents of Kitimat and some members of the Haisla Nation, who say that Clio Bay is full of life and that the capping will cause irreparable damage.
An investigation by Northwest Coast Energy News shows that capping thousands of sunken logs is a lot more complicated and possibly costly than anyone has considered. It is also clear that many of the comments both supporting and opposing the Clio Bay project are based on guesses rather than the extensive scientific literature available on the subject.
Northwest Coast Energy News findings include:
In 1997, the Department of Fisheries and Oceans surveyed sunken log sites in Douglas Channel. The results, published in 2000, identified 52 sites just on Douglas Channel and the Gardner Canal that had various levels of enviromental degradation due to sunken logs. Clio Bay was not the list. The DFO scientists recomended followup studies that never happened.
Scientific studies show that degradation from sunken logs can vary greatly, even within one body of water, due to depth, currents, number of logs, and other factors. So one part of a bay can be vibrant and another part environmentally degraded due to low levels of dissolved oxygen and decaying organic material.
If KM LNG wasn’t paying for the remediation of Clio Bay, it could be very expensive. Capping sunken logs at a cove near Ketchikan, Alaska, that is the same size and shape as Clio Bay cost the US and Alaska governments and the companies involved $2,563,506 in 2000 US dollars. The total cost of the cleanup of the site which was also contaminated with pulp mill effluent was $3,964,000. The estimated cost of capping the logs in the Alaska project was $110 per cubic yard.
The Alaska project shows that a remediation project means while most of the logs in a bay or cove can be capped, in some parts of a water body, depending on currents, contamination and planned future use, the logs have to be removed and the area dredged.
Agencies such as the State of Alaska, the US Environmental Protection Agency and the US Army Corps of Engineers all recommend using “clean sand” for capping operations. Although “clay balls” have been used for capping in some cases, the US officials contacted say they had no record of large amounts of marine clay ever being used for capping. They also noted that every log capping project they were aware of happened in sites that had other forms of contamination such as pulp mill effluent.
Chevron only recently retained the environmental consulting firm Stantec to study Clio Bay. The Department of Fisheries and Oceans has told District of Kitimat Council it recently completed mapping of the seafloor at Clio Bay. The Alaska project was preceded by five years of monitoring and studies before capping and cleanup began.
A letter from Fisheries and Oceans to the District of Kitimat says that Clio Bay has been mapped and the department is planning to monitor any capping operations. However, it appears from the Department of Fisheries and Oceans website that the department has no current policies on remediation since the Conservative government passed two omnibus which weakened the country’s environmental laws. According to the website, new remediation policies are now being drafted. That means that although DFO will be monitoring the Clio Bay operation, it is uncertain what standards DFO will be using to supervise whatever happens in Clio Bay.
Northwest Coast Energy News is continuing its investigation of the sunken logs problem. Expect more stories in the days to come.
Special report: Clio Bay cleanup: Controversial, complicated and costly
Clio Bay, looking toward Douglas Channel, September 14, 2013. (Robin Rowland/Northwest Coast Energy News)
Haisla First Nation Chief Counsellor Ellis Ross says the Haisla made the proposal to the KM LNG project, a partnership of Chevron and Apache, to use the marine clay to cover the thousands of logs at the bottom of Clio Bay after years frustration with the Department of Fisheries and Oceans and the BC provincial government, which for decades ignored requests for help in restoring almost fifty sunken log sites in Haisla traditional territory.
The problem is that remediation of the hundreds of sites on Canada’s west coast most containing tens of thousands of sunken logs has been so low on DFO’s priority list that even before the omnibus bills that gutted environmental protection in Canada, remediation of sunken log sites by DFO could be called no priority.
Now that the KM LNG has to depose of a total of about 3.5 million cubic metres of marine clay and possibly other materials from the Bish Cove site, suddenly log remediation went to high priority at DFO.
The controversy is rooted in the fact that although the leaders of the Haisla and the executives at Chevron knew about the idea of capping Clio Bay, people in the region, both many residents of Kitimat and some members of the Haisla were surprised when the project was announced in the latest KM LNG newsletter distributed to homes in the valley.
Chevron statement
In a statement sent to Northwest Coast Energy News Chevron spokesperson Gillian Robinson Ridell said:
The Clio Bay Restoration Project proposed by Chevron, is planned to get underway sometime in early 2014. The proposal is fully supported by the Federal Department of Fisheries and Oceans and the Haisla First Nation Council. The project has been put forward as the best option for removal of the marine clay that is being excavated from the Kitimat LNG site at Bish Cove. Chevron hired Stantec, an independent engineering and environmental consulting firm with extensive experience in many major habitat restoration projects that involve public safety and environmental conservation. The Haisla, along with Stantec’s local marine biologists, identified Clio Bay as a site that has undergone significant environmental degradation over years of accumulation of underwater wood debris caused by historic log-booming operations. The proposal put forward by the marine biologists was that restoration of the marine ecosystem in the Bay could be achieved if marine clay from Chevron’s facility site, was used to cover the woody debris at the bottom of the Bay. The process outlined by the project proposal is designed to restore the Clio Bay seafloor to its original soft substrate that could sustain a recovery of biological diversity.
Kitimat worried
Non-aboriginal residents of Kitimat are increasingly worried about being cut off from both Douglas Channel and the terrestrial back country by industrial development. These fears have been heightened by reports that say that Clio Bay could be closed to the public for “safety reasons” for as much as 16 months during the restoration project.
The fact that Clio is known both as a safe anchorage during bad weather and an easy to get to location for day trips from Kitimat has made those worries even more critical.
There is also a strong feeling in Kitimat that the residents were kept out of the loop when it came to the Clio Bay proposal.
In a letter to the District of Kitimat, DFO said:
Clio Bay has been used as a log handling site for decades which has resulted in areas of degraded habitat from accumulations of woody debris materials on the sea floor. The project intends to cap impacted areas with inert materials and restore soft substrate seafloor. The remediation of the seafloor is predicted to enhance natural biodiversity and improve the productivity of the local fishery for Dungeness crab. The project area does support a variety of life that will be impact and therefore the project will require authorization from Fisheries and Oceans Canada for the Harmful Alteration, Disruption or Destruction (HADD) of fish and fish habitat.
The letter avoids the controversy over the use of marine clay but saying “inert material” will be used. That can only increase the worries from residents who say that not only clay but sand, gravel and other overburden from Bish Cove and the upgrade of the Forest Service Road may be used in Clio Bay. (The use of “inert material” also gives DFO an out if it turns out the department concludes the usual practice of using sand is better. That, of course, leaves the question of what to do with the clay).
Although Ellis Ross has said he wants to see large numbers of halibut and cod return to Clio Bay, the DFO letter only mentions the Dungeness Crab.
DFO website cites pending changes after the passage of the omnibus bills.
Try to search “remediation” on the DFO site and the viewer is redirected to a page that cites the omnibus bills passed by the Conservative government and says
On June 29, 2012, the Fisheries Act was amended. Policy and regulations are now being developed to support the new fisheries protection provisions of the Act (which are not yet in force). The existing guidance and policies continue to apply. For more information, see Changes to the Fisheries Act.
On April 2nd, 2013 the Habitat Management Program’s name was changed to the Fisheries Protection Program.
So, despite what communications officers for DFO and the Harper government may say, there was no policy then and there is no policy now on remediation of log sites. Given Harper’s attitude that LNG and possibly bitumen export must proceed quickly with no environmental barriers, it is likely that environmental remediation will continue to be no priority—unless remediation becomes a problem that the energy giants have to solve and pay for.
Alaska studies
On the other hand, the State of Alaska and the United States Environmental Protection Agency spent a decade at a site near Ketchikan studying the environmental problems related to sunken logs at transfer sites
Those studies led Alaska to issue guidelines in 2002 with recommended practices for rehabilitating ocean log dump sites and for the studies that should precede any remediation project.
The Alaska studies also show that in Pacific northwest coast areas, the ecological effects of decades of log dumping, either accidental or deliberate, vary greatly depending on the topography of the region, the topography of the seabed, flow of rivers and currents as well as industrial uses along the shoreline.
The Alaska policy is based on studies and a remediation project at Ward Cove, which in many ways resembles Clio Bay, not far from Kitimat, near Ketchikan.
The Alaska policy follows guidelines from both the US Environmental Protection Agency and the US Army Corps of Engineers that recommend using thin layers of “clean sand” as the best practice method for capping contaminated sites. (The Army Corps of Engineers guidelines say that “clay balls” can be used to cap contaminated sites under some conditions. Both a spokesperson for the Corps of Engineers and officials at the Alaska Department of Environmental Conservation told Northwest Coast Energy News that they have no records or research on using marine clay on a large scale to cap a site.)
The EPA actually chose Sechelt, BC, based Construction Aggregates to provide the fine sand for the Ward Cove remediation project. The sand was loaded onto 10,000 tonne deck barges, hauled up the coast to Ward Cove, offloaded and stockpiled then transferred to derrick barges and carefully deposited on the sea bottom using modified clam shell buckets.
The EPA says
Nearly 25,000 tons of sand were placed at the Ward Cove site to cap about 27 acres of contaminated sediments and 3 other acres. In addition, about 3 acres of contaminated sediments were dredged in front of the main dock facility and 1 acre was dredged near the northeast corner of the cove. An additional 50 acres of contaminated sediments have been left to recover naturally.
A report by Integral Consulting, one of the firms involved at the project estimated that 17,800 cubic metres of sand were used at Ward Cove.
In contrast, to 17,800 cubic metres of sand used at Ward Cove, the Bish Cove project must dispose of about 1.2 million cubic metres of marine clay at sea (with another 1.2 million cubic metres slated for deposit in old quarries near Bees Creek).
Studies at Ward Cove began as far back as 1975. In 1990 Alaska placed Ward Cove on a list of “water-quality limited sites.” The studies intensified in 1995 after the main polluter of Ward Cove, the Ketchikan Paper Company, agreed in a consent degree on a remediation plan with the Environmental Protection Agency in 1995. After almost five years of intensive studies of the cove, the sand-capping and other remediation operations were conducted from November 2000 to March 2001. A major post-remediation study was carried out at Ward Cove in 2004 and again in 2009. The next one is slated for 2015.
Deaf ears at DFO
“We need to put pressure on the province or Canada to cleanup these sites. We’ve been trying to do this for the last 30 years. We got nowhere,” Ellis Ross says. “Before when we talked [to DFO] about getting those logs and cables cleaned up, it fell on deaf ears. They had no policy and no authority to hold these companies accountable. So we’re stuck, we’re stuck between a rock and hard place. How do we fix it?”
Ross says there has been one small pilot project using marine clay for capping which the Haisla’s advisers and Chevron believe can be scaled up for Clio Bay.
Douglas Channel studies
The one area around Kitimat that has been studied on a regular basis is Minette Bay. The first study occurred in 1951, before Alcan built the smelter and was used as a benchmark in future studies. In 1995 and 1996, DFO studied Minette Bay and came to the conclusion that because the water there was so stagnant, log dumping there had not contributed to low levels of dissolved oxygen although it said that it could not rule out “other deleterious effects on water quality and habitat`from log dumping.”
That DFO report also says that there were complaints about log dumping at Minette Bay as far back as 1975, which would tend to confirm what Ross says, that the Haisla have been complaining about environmentally degrading practices for about 30 years.
Ross told Northwest Coast Energy News that if the Clio Bay remediation project is successful, the next place for remediation should be Minette Bay.
A year after the Minette Bay study, DFO did a preliminary study of log transfer sites in Douglas Channel, with an aerial survey in March 1997 and on water studies in 1998. The DFO survey identified 52 locations with sunken logs on Douglas Channel as “potential study sites.” That list does not include Clio Bay. On water studies were done at the Dala River dump site at the head of the inlet on Kildala Arm, Weewanie Hotsprings, at the southwest corner of the cove, the Ochwe Bay log dump where the Paril River estuary opens into the Gardner Canal and the Collins Bay log dump also on the Gardner Canal.
In the introduction to its report, published in 2000, the DFO authors noted “the cumulative effect of several hundred sites located on BC coast is currently unknown.”
Since there appears to have been no significant follow-up, that cumulative effect is still “unknown.”
In 2000 and 2001, Chris Picard, then with the University of Victoria, now Science Director for the Gitga’at First Nation did a comparison survey of Clio Bay and Eagle Bay under special funding for a “Coasts Under Stress” project funded by the federal government. Picard’s study found that Eagle Bay, where there had been no log dumping was in much better shape than Clio Bay. For example, Picard’s study says that “Dungeness crabs were observed five times more often in the unimpacted Clio Bay.”
Although low oxygen levels have been cited as a reason for capping Clio Bay, Picard’s study says that “near surface” oxygen levels “did not reliably distinguish Clio and Eagle Bay sediments.” While Clio Bay did show consistent low oxygen levels, Eagle Bay showed “considerable interseasonal variation” which is consistent with the much more intensive and ongoing studies of oxygen levels at Wards Cove.
Chevron’s surprise
It appears that Chevron was taken by surprise by the controversy over the Clio Bay restoration. Multiple sources at the District of the Kitimat have told Northwest Coast Energy News that in meetings with Chevron, the company officials seemed to be scrambling to find out more about Clio Bay.
This is borne out by the fact, in its communications with Northwest Coast Energy News, Chevron says its consulting firm, Stantec has cited just two studies, Chris Picard’s survey of Clio Bay and a 1991 overview of log-booming practices on the US and Canadian Pacfic coasts. So far, Chevron has not cited the more up-to-date and detailed studies of Ward Cove that were conducted from 1995 to 2005.
Chevron says that Stantec marine biologists are now conducting extensive field work using divers and Remote Operated Vehicle surveys to “observe and record all flora and fauna in the bay and its levels of abundance. Stantec’s observations echoed the previous studies which determined that the massive amount of wood has harmed Clio Bay’s habitat and ecosystem.”
In its statement to Northwest Coast Energy News, Chevron cited its work on Barrow Island, in Western Australia, where the Chevron Gordon LNG project is on the same island as a highly sensitive ecological reserve.Chevron says the Australian site was chosen only after a thorough assessment of the viability of other potential locations, and after the implementation of extensive mitigation measures, including a vigorous quarantine program for all equipment and materials brought on to the Barrow island site to prevent the introduction of potentially harmful alien species.
Reports in the Australian media seem to bare out Chevron’s position on environmental responsibility. Things seem to be working at Barrow Island.
Robinson went on to say:
Those same high environmental standards are being applied to the Kitimat LNG project and the proposed Clio Bay Restoration project. The proposed work would be carried out with a stringent DFO approved operational plan in place and would be overseen by qualified environmental specialists on-site.
The question that everyone in the Kitimat region must now ask is just how qualified are the environmental specialists hired by Chevron and given staff and budget cuts and pressure from the Prime Minister’s Office to downgrade environmental monitoring just how stringent will DFO be monitoring the Clio Bay remediation?
Alaska standardsIn the absence of comprehensive Canadian studies, the only benchmark available is that set by Alaska which calls for:Capping material, typically a clean sand, or silty to gravelly sand, is placed on top of problem sediments. The type of capping material that is appropriate is usually determined during the design phase of the project after a remediation technology has been selected. Capping material is usually brought to the site by barge and put in place using a variety of methods, depending on the selected remedial action alternative.
Thick Capping
Thick capping usually requires the placement of 18 to 36 inches of sand over the area. The goal of thick capping is to isolate the bark and wood debris and recreate benthic habitat that diverse benthic infauna would inhabit.
Thin Capping
Thin capping requires the placement of approximately 6 – 12 inches of sand on the project area. It is intended to enhance the bottom environment by creating new mini-environments, not necessarily to isolate the bark and wood debris. With thin capping, surface coverage is expected to vary spatially, providing variable areas of capped surface and amended surface sediment (where mixing between capping material and problem sediment occurs) as well as limited areas where no cap is evident.
Mounding
Mounding places small piles of sand or gravel dispersed over the waste material to create habitat that can be colonized by organisms. Mounding can be used where the substrate will not support capping.
Special report: Clio Bay cleanup: Controversial, complicated and costly
Haisla Nation Chief Counsellor Ellis Ross at Bish Cove, June 19, 2013. (Robin Rowland/Northwest Coast Energy News)
Haisla Chief Counsellor Ellis Ross says that capping the logs at Clio Bay was a Haisla idea, taking advantage of the opportunity to use the marine clay from Bish Cove to bring back the Clio ecosystem.
The Haisla were told by experts who video taped the bottom of Clio Bay that are between 15,000 to 20,000 sunken logs in Clio Bay.
“I know because I’ve spent a lot of time down there plus my dad actually worked for the booming company for years and knew what was going on out there,” Ross said. “There are two extreme areas we’re talking about, if you look at Clio Bay where it’s estimated that there 15,000 to 20,000 logs down there, imagine what Minette Bay looks like? And it’s all iron, it’s steel. It’s not just wood, there are a lot of cables down there.
Cables retrieved from Ward Cove, Alaska, during dredging and capping in 2001. (EPA)
“The Haisla have known about the degradation of our territory for years. The problem we have as Haisla members is to restore the habitiat is that nobody wants to clean up the habitat. This was our idea, after review from technical experts from DFO as well as our own experts. We’re looking for a three way solution, with the company, DFO and the Crown and the Haisla.”
“I’d love to go and catch halibut and cod, like my ancestors used to.”
He said that the Haisla have beem aware of environmental problems from sunken logs for decades and have been asking for cleanup of degraded areas since 2004, not just at Clio Bay, but in the Kildala Arm and at Collins Bay, which were studied by DFO in 1997.
“The logs are down there, they are oxidizing, but no one wants to do anything about it, including the company and including the Crown. We had independent people come in and review it and have them come up with a recommendation. There was a small scale project [involving marine clay] that proved that this could work.
“This system here is killing two birds with one stone, get rid of the clay and try to remediate some of the habitat,” Ross said.
He said that the original estimate of marine clay excavated at Bish Cove was 10,000 cubic metres. That has now risen to about 3.5 million cubic metres because the KM LNG project is digging deeper for the foundation of the LNG terminal. The original plan called for disposing 1.2 million cubic metres at sea and another 1.2 million cubic metres on land.
“The original idea was to dump the clay in the middle of the ocean. In small amounts it could have been mitigated, but in large amounts we said ‘no.’ If we try to dump clay in the middle of the channel, we have no idea where it’s going to end up, what the effect is going to be.” Ross said. “We did the same thing here for the terrestrial side, we said ‘OK that with the rock quarries above Bees Creek,’ use the clay to help remediate that as well, bring it back.”
Asked about Ward Cove in Alaska, where the US Environmental Protection Agency ordered a cleanup, Ross said. “The difference here is that no one is ordering these companies to clean up the sites, they walk away. No one is taking responsiblity, The Haisla are trying to do this within the parameters they’ve given us.So if someone could come in and order these companies and do something, we’ll look for something else to do with the clay. Until that day comes, the Haisla are still stuck with trying to bring back this land by ourselves. If the District of Kitimat wants to pay the bill, great. Let’s see it.
“We need to put pressure on the province or Canada to cleanup these sites. We’ve been trying to do this for the last 30 years. We got nowhere. Before when we talked about getting those logs and cables cleaned up, it fell on deaf ears [at DFO]. They [DFO] had no policy and no authority to hold these companies accountable. So we’re stuck, we’re stuck between a rock and hard place. How do we fix it?”
Ross also noted that Shell’s LNG Canada project also faces remediation problems, “Shell is going to have the same problem, their’s is going to be different, they’re going to have get rid of contamination on the ocean bottom and beneath that it’s basically going to be gravel, it’s not clay, they’re going to have get rid of that product.”
Special report: Clio Bay cleanup: Controversial, complicated and costly
Floating logs at Clio Bay, September 14, 2013. (Robin Rowland/Northwest Coast Energy News)
The forest industry has been operating on the Pacific coast from Oregon to Alaska for more than a century. Over that time, it is likely that millions of logs from booms and other operations have sunk to the bottom of bays, cove, estuaries and inlets along the coast.
During that century, scientists in both Canada and the United States have been studying the effects of the those sunken logs on the sea bottom. It is only in recent years that the cumulative effect of all those logs has become an environmental concern.
As well as logs on the sea bottom, ranging, depending on location, from a couple of hundred to the tens of thousands of logs, there are wood chips, wood fibre and discarded log parts and bark. Often metal cables, bolts, ropes, and other manufactured material either dropped accidentally or deliberately discarded are also found among the old logs, further contaminating the seabed. Compounding the problem of the sea bottom is organic material that would occur naturally on the seabed, including tree trunks, roots, branches, conifer needles, deciduous leaves and other material from terrestrial plants.
Anyone who sails Douglas Channel after a storm can see with all the floating tree trunks in the Channe. That means that storms and spring run off ads debris to the natural pile up of old logs and debris. At logging sites, this natural material, brought in by creeks and rivers, piles up on the already sunken logs.
Over the years, depending on the salinity, teredos, more popularly known as ship worms eat the wood, often leaving a tube of bark that eventually collapses. The rotting wood, bark and other material is often, depending on conditions, pounded into fragments by the action of waves, currents and outflow from rivers. Some species of teredo can live in brackish water, but since teredos are not a fresh water species, that means that logs in fresh or mostly fresh water last longer.
A DFO report on sunken log sites on Douglas Channel, published in 2000, noted:
very few comprehensive, quantitative field studies describing the effects of wood and bark have been published and those that did focused on log handling and storage sites which handled high volumes of more than one million cubic metres.
The DFO report said that thick bark and wood debris deposits resulting from log handling can cause substantial, long-term negative impacts to benthic (sea bottom) ecosystems. Under the worst conditions, the cumulative debris can deprive an area of oxygen and, according to DFO, “virtually eliminate aerobic” sea bottom animal life.
The report noted that studies had shown that “negative biological impacts were localized,” but added that “the cumulative effect of several hundred sites located on the B.C. coast is currently unknown.”
Studying the problem has been a low priority for DFO and other agencies and that meant a limited budget and few studies. Other problems is that, according to the DFO, parts of BC fjords are steep and “much of the likely impacted habitat is beyond diver range.” There is also pressure to study the effect on “economically or socially important species.” Although the use of remotely operated vehicles has increased since the 2000 report, using an ROV can also be a budget buster for a low priority project.
As the ready timber supply in British Columbia particularly old growth forest declined in the last part of the twentieth century, the DFO report says “forest companies have harvested areas where access is more difficult and cut-blocks are smaller.” That meant many smaller dump sites were developed that were used for only one to five years. Plans for log handling at the time, DFO said, were evolving to ensure ensure that fisheries resources and overall fish production capability were not adversely affected by development of log handling facilities and planning was focused on ensuring that sites for log handling facilities did “not have sensitive fish habitats or fisheries resources (such as eel grass beds or shellfish resources) which may be affected by the log handling,”
One of the reasons for the disagreements over Clio Bay is that while some people call it “dead” saying there are no halibut and fewer cod, others say that Clio Bay is very much alive, pointing out that it is easy to catch crab and rock cod.
The studies that have looked at life on the bottom of log dumps sites have shown that it can be highly variable even within one bay or cove, with many factors creating small local ecosystems, including depth, nature of the sea bottom, for example sand, mud, clay or a mixture, whether or not the sea bottom sediment is “enriched,” the flow of currents, fresh water flow into the site, the percentage of wood on the bottom, the percentage of bark on the bottom, whether the wood and/or bark debris is “continuous’ or “discontinuous,” whether or not the seabed is contaminated as was the case with the cleanup of pulp mill sites at Ward Cove and Sitka, Alaska.
Ward Cove had been so polluted for decades by pulp mill effluent that it was eligible for US Superfund clean up funding and was estimated to hold 16,000 sunken logs. At the same time, an EPA report on Ward Cove noted that at the point Ward Creek emptied into Ward Cove was “a popular sport fishing location during salmon season, including commercially guided fishing. Some sport fishing and personal-use crab pot fishing has taken place in the past and may continue in the waters of the cove.” At the same time of the cleanup, the EPA identified that the degradation of Ward Cove put at risk eight species of salmon, 75 “non-salmonid esturine and marine fish species and benthic invertebrate fauna.” (The EPA says Ward Cove is recovering after the reclamation and fishing is continuing)
In other words, those say Clio Bay is in danger and those who say Clio Bay is a rich source of life are likely both right.
For example, while Chris Picard’s (then with the University of Victoria, now with the Gitga’at First Nation) study of Clio Bay said: “Dungeness crabs were observed five times more often in the unimpacted Eagle Bay than in Clio Bay,” and tied that to log dumping and low oxygen.
Picard’s study noted that both Dungeness crabs and sunflower seastars, while more abundant in Eagle Bay, in Clio Bay “both species were several-fold less abundant in wood-dominated habitats in Clio Bay than in non-wood habitats in that bay.”
Several people have pointed out that since Clio Bay is one of the closest crabbing spots to both Kitimat and Kitamaat Village, while Eagle Bay is further down Douglas Channel, overfishing at Clio may be a factor in the reported species decline.
The DFO study noted
The dumping of logs into water down skids can result in the generation of a considerable amount of bark and wood debris. The abrasive action of boom boats and waves during the sorting and storage of bundles can also generate quantities of wood debris. Bark and wood lost during dumping often forms thick, continuous, anoxic fibre mats extended from the base of the dump skids. The debris mat tends to dissipate with distance from the entry point; however, wood debris can often be observed substantial.” distances from the dump skids as seen at all four of the sites sampled. Debris deposits can also be generated as logs resting on the sea floor decay. Wood boring organisms (e.g., Toredo) quickly reduce the wood fibre content of logs, but the bark of some species (e.g., western red cedar (Thuja plicata) which has a high lignin content) is left relatively untouched. The amount of wood debris generated during handling and storage can be different depending on tree species, tidal levels, and dumping methods. Debris accumulation, distribution, and the resulting biological impacts are affected by physical factors including depth, sea floor slope, dump site aspect, water currents, and wind or wave exposure.
One of the main problems with log dumping is that it has the potential to deplete vital oxygen, especially at deeper levels. Seasonal variations can mean that, even if there are thousands of logs at the bottom, the levels of dissolved oxygen can vary. Years of studies at the cleanup site at Ward Cove, Alaska showed how the oxygen levels can vary by season. In Minette Bay, near Kitimat, a DFO study showed that the Minette is somewhat stagnant and therefore has naturally occurring low oxygen levels, but also that the low levels usually last from May to November and are worst in July.
The DFO study went on to say that oxygen poor thick anoxic bark or wood fibre deposits are likely to cause damage to bottom dwelling species, although in the short term, logs may not cause any impacts. It says that some studies have indicated that large pieces of wood debris can, for a time, increase diversity by providing suitable base for some filter feeders as well as food and cover for epifauna and wood boring organisms. Several species not normally found in sand-bed have occasionally been found in log and rock debris.
(Studies have shown that salmon the ability to detect low oxygen areas and avoid them and some active invertebrate species can migrate away from a low oxygen area.)
In the long term, logs do decay and the wood and bark left behind can contribute to the wood debris accumulation. One study cited by the DFO survey of Douglas Channel found found that crabs avoided bark deposits when given a choice but when they were forced to live among bark deposits, they were had fewer offspring, had lower feeding rates, and had a decreased survivorship.
One theory is that the decaying organic material produces hydrogen sulphide in combination with ammonia and other unmeasured toxicants. One study of Dungeness crabs, living at a log dump in southeast Alaska with elevated hydrogen sulphide and ammonia concentrations in the bark debris, shows the colony had less than half as many reproducing females as a control population.
The EPA and Alaska reports from Ward Cove show that sand capping does help restore the seabed environment.
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Special report: Clio Bay cleanup: Controversial, complicated and costly
The Department of Fisheries and Oceans has declined an invitation from District of Kitimat Council to appear at a special meeting on Monday, September 30 to discuss the Clio Bay remediation project. A representative of Chevron will be in the council chambers at the Kitimat branch of Northwest Community College to make a presentation and answer questions.
The letter from DFO to the council from Dave Pehl works at DFO office in Kamloops says:
Thank you for the invitation to attend District of Kitimat Council meeting on September 30, 2013 to address plans by Chevron Canada and Apache Canada(Kitimat LNG) to remediate habitat conditions in Clio Bay. Regretfully, Fisheries and Oceans Canada (DFO) is unable to attend the scheduled council meeting.
Fisheries and Oceans Canada has reviewed a proposal to dispose of soil materials, generated at the Kitimat LNG plant, in Clio Bay, Clio Bay has been used as a log handling site for decades which has resulted in areas of degraded habitat from accumulations of woody debris materials on the sea floor. The project intends to cap impacted areas with inert materials and restore soft substrate seafloor. The remediation of the seafloor is predicted to enhance natural biodiverstiy and improve the productivity of the local fishery for Dungeness crab. The project area does support a variety of life that will be impact and therefore the project will require authorization from Fisheries and Oceans Canada for the Harmful Alteration, Disruption or Destruction (HADD) of fish and fish habitat.
Mapping of the seafloor in Clio Bay has been completed and the project plans prioritizes capping on areas of dense woody debris, followed by areas of soft substrate with woody debris distributed throughout. Mapped areas that are avoided include hard substrates and sensitive habitats such as freshwater streams and eelgrass beds. Buffers have been allocated around sensitive areas and no capping will be conducted in areas of less 10m in depth. Proposed mitigation to avoid potential impacts to areas outside Clio Bay includes avoiding deposition of material within 500m of the confluence of Clio Bay and kitimat Arm. Some areas of degraded or partially degraded habitat will not be capped to serve as reference areas.
Chevron will be required to conduct a pre-construction, construction and post construction monitoring program. Pre-construction monitoring will include collection of baseline information that will be used to assess effectiveness monitoring during and at the completion of the project. Water quality monitoring for turbidity and total suspended solids will be undertaken during construction to determine if established performance criteria are met. The monitoring plan for the project will evaluate
1. Water quality near the sea floor.
2. Fish habitat quality and quantity
3. Biodiversity of the seafloor ecosystem and
4. Distribution of a fishery resource (Dungeness crab)
Reference sites will be used to make comparison between capped and uncapped habitats. Monitoring will continue for a period of five years following the completion of the works. The proponent will be required to report the follow-up monitoring program to DFO in years 1,3 and 5 following construction.
Special report: Clio Bay cleanup: Controversial, complicated and costly
Here is the text of a statement Chevron spokesperson Gillian Robinson Riddell sent to Northwest Coast Energy News
The Clio Bay Restoration Project proposed by Chevron, is planned to get underway sometime in early 2014. The proposal is fully supported by the Federal Department of Fisheries and Oceans and the Haisla First Nation Council. The project has been put forward as the best option for removal of the marine clay that is being excavated from the Kitimat LNG site at Bish Cove. Chevron hired Stantec, an independent engineering and environmental consulting firm with extensive experience in many major habitat restoration projects that involve public safety and environmental conservation. The Haisla, along with Stantec’s local marine biologists, identified Clio Bay as a site that has undergone significant environmental degradation over years of accumulation of underwater wood debris caused by historic log-booming operations. The proposal put forward by the marine biologists was that restoration of the marine ecosystem in the Bay could be achieved if marine clay from Chevron’s facility site, was used to cover the woody debris at the bottom of the Bay. The process outlined by the project proposal is designed to restore the Clio Bay seafloor to its original soft substrate that could sustain a recovery of biological diversity.
In preparing this restoration project proposal for Chevron, Stantec conducted independent field studies carried out by their own marine biologists who are registered with BC College of Applied Biology. Two of the studies used in the development of the proposed project were previously published scientific studies on the effects of log-boom activity and log boom activity in Clio Bay that determined log boom and storage activity has had a negative impact on marine diversity. There are previous case studies where capping activity has been used in marine environments.
Stantec’s, and previous studies, have determined that Clio Bay has changed from a once highly productive marine bay characterized by plentiful predatory species such as Dungeness Crab and sunflower stars to a less productive environment hosting more opportunistic and resilient species such as squat lobster and sea anemones. One such study found that compared to Eagle Bay, which has not been affected by logging activity had five times the Dungeness Crab population of Clio Bay. Independent studies conducted before Chevron began working at Bish Cove found that if Clio Bay is left in its current degraded condition, the woody debris will continue to foster and abnormal, species-deficient habitat for several decades. Extensive fieldwork carried out by Stantec’s marine biologists used SCUBA and Remote Operated Vehicle surveys to observe and record all flora and fauna in the bay and its levels of abundance. Stantec’s observations echoed the previous studies which determined that the massive amount of wood has harmed Clio Bay’s habitat and ecosystem.
Most importantly, when considering the work Chevron is proposing to carry out in Clio Bay, it is important to note that a primary objective of all Chevron’s operations is to protect people and the environment. A good example of how we have done that on other projects can be seen in the construction of Chevron’s Gorgon LNG plant in Australia on Barrow Island, which is a Class A nature reserve. Although identified as one of the most important wildlife refuges in the world, and the site was chosen only after a thorough assessment of the viability of other potential locations, and after the implementation of extensive mitigation measures, including a vigorous quarantine program for all equipment and materials brought on to the Barrow island site to prevent the introduction of potentially harmful alien species. Those same high environmental standards are being applied to the Kitimat LNG project and the proposed Clio Bay Restoration project. The proposed work would be carried out with a stringent DFO approved operational plan in place and would be overseen by qualified environmental specialists on-site.
Special report: Clio Bay cleanup: Controversial, complicated and costly
Editorial:
Hire the experts. This is not the time to be learning on the job.
Everyone in the Kitimat and Kitamaat Village are facing a dilemma, a dilemma that should have been solved a year ago, when it was first known that the KM LNG project at Bish Cove had grossly underestimated the amount of marine clay and other material that has to be removed for the liquified natural gas terminal, a total of about 3.5 million metric tonnes.
The Haisla and Chevron are proposing that much of the clay be deposited over sunken logs in Clio Bay.
Chevron, which only took over operations at KM LNG in December 2012, is still learning on the job.
When the Clio Bay capping plan became public, far too late in the process, only then did Chevron begin to take a serious look public worries about the environmental problems that might result from depositing all that marine clay in Clio Bay.
Chevron hired Stantec, a well-known international consulting firm with close ties to the energy industry and some experience in remediation to evaluate Clio Bay. Although Chevron said in a statement that Stantec is a company “with extensive experience in many major habitat restoration projects,” it appears that Stantec, in the case of Clio Bay, is a jack of all environmental trades and master of none, just learning on the job.
In answer to questions by Northwest Coast Energy News, Chevron cited two studies supplied to them by Stantec. One was Chris Picard’s (now with the Gitga’at First Nation) study of Clio Bay which anyone can find by using a Google Search. The second was an overview chapter of west coast North American logging practices from a book published 22 years ago.
Any of the web saavy undergraduate journalism students I once taught at Ryerson University could have done better. This semi-retired reporter, without the resources he once had in a major newsroom, easily found the studies of the log filled Ward Cove, the State of Alaska’s recommended remediation practices, the capping procedures recommended by the US Army Corps of Engineers and more. Chevron did not mention Stantec citing the 1995 DFO study of nearby Minette Bay which can easily be found on the DFO website.
A letter from Fisheries and Oceans to District of Kitimat Council only mentions Dungeness crab and not the Haisla desire to restore halibut and cod to Clio Bay. That can only raise suspicions that the DFO is also depending solely on Chris Picard’s limited survey of Clio Bay.
In Alaska, at Ward Cove, there were almost five years of studies on the ocean environment before part of the cove was dredged and parts of the cove with thousands of logs there were capped with fine sand.
The people of Kitimat and Kitamaat want the LNG project to proceed. Everyone wants a clean and sustainable ocean enviroment, whether in Clio Bay, Minette Bay or down Douglas Channel. The problem of that 3.5 million cubic metres of marine clay must be handled in a timely fashion so the LNG terminal can move to the next step in the coming months. There is no time for five years of studies before proceeding.
This site would not normally endorse one large corporation over another.
There isn’t time for Chevron and Stantec to be learning on the job, its technicians racing in their boats between Clio Bay and Bish Cove trying to figure out what is going on and casually asking people what they think. No time at all.
The clock is ticking. Chevron and Apache, in partnership with both the Haisla and the District of Kitimat, should immediately hire the companies that do have the expertise in remediating a northwest Pacific coast bay filled with sunken logs, the companies that cleaned up Ward Cove in Alaska. Integral Consulting was the main environmental consulting contractor at Ward Cove, assisted by another large firm, Exponent and by Germano and Associates, a company that according to its website specializes in “rapid seafloor reconnaissance”. Both Integral and Exponent are, like Stantec, giant international consulting firms. In this case, experience has to count. While Stantec’s website does list remediation projects, none are similar to Clio Bay.
A letter from Fisheries and Oceans to the District of Kitimat says that:
Chevron will be required to conduct a pre-construction, construction and post construction monitoring program. Pre-construction monitoring will include collection of baseline information that will be used to assess effectiveness monitoring during and at the completion of the project. Water quality monitoring for turbidity and total suspended solids will be undertaken during construction to determine if established performance criteria are met.
From the reports available from both the EPA and the State of Alaska it appears that the companies that cleaned up Ward Cove did just what DFO is asking, assess and monitor. Another reason to hire the experts rather than the newbies.
Why a three way partnership? Chevron/Apache and the Haisla Nation are already partners in the Clio Bay plan. Adding the District of Kitimat would establish trust and make sure that the results of any scientific and engineering studies, plans and operations would be available to the people of Kitimat (as well as some Haisla members who feel they were excluded) as part of the ongoing process. The partnership would make up for the lack of transparency up until now, make sure the public is kept up-to-date and not just by Chevron’s and DFO’s communications people since reports to the District could be reviewed by the engineering staff and members of council.
It is likely that those companies that worked at Ward Cove could quickly let everyone know whether the idea of capping at Clio Bay with marine clay is a viable option and if it is viable how to do it properly rather than just dumping the clay from a barge using a hose. If marine clay is not viable for Clio Bay, it is likely that those firms could advise whether one of the original plans, to dump the clay in the deep ocean, is a better solution, or if there is another alternative that no one has thought of.
Kitimat and Kitamaat are lucky. The recommended practice for capping sunken logs is using sand. There is here a ready source at the Kitimat Sand Hill. If marine clay is not a viable option, or for future projects, the Sand Hill can easily be used to fulfill the aims of both the Haisla Nation and the residents of Kitimat to clean up Clio Bay, Minette Bay and eventually all 50 other sites identified along Douglas Channel by DFO in 1997. Those consulting firms have the expertise in this area and that expertise should be utilized.
Learning from the job
Even though sand has a track a record in capping, using marine clay from Bish Cove to cap the logs at Clio Bay is probably a good idea, after all that marine clay was once at the bottom of the Ice Age Douglas Channel.
The use of sand for capping sites is well-known, there are established engineering parameters. At Ward Cove, there were studies of the angle of the slopes and how much weight of sand that the debris could hold. Sand is very different from marine clay. At the moment, there are no engineering parameters for marine clay. It appears that no one has thought of doing slope analysis and load bearing engineering studies at Clio Bay.
Marine clay is a potential cap for all the sunken log sites on Douglas Channel and on the whole Pacific coast from Oregon to Alaska. That means that Clio Bay is a pilot project that should be planned as carefully as possible, within the time constraints needed for construction of the LNG terminal, but not regarded as a rush job to get rid of that clay. That means taking the time needed to do all the necessary scientific and engineering studies before the first drop of clay heads to the bottom. That is another reason to hire experts who actually know what they are doing so everyone can learn from the job.
Standards
No matter how the cleanup of Clio Bay proceeds, KM LNG, the Haisla and the District of Kitimat are facing another dilemma. What standards and benchmarks should be applied to the project?
By law, the Department of Fisheries and Oceans is responsible and will, of course, be monitoring the cleanup.
Despite assurances in a letter to the District of Kitimat, it is clear that DFO too is learning on the job.
At the moment, DFO has no standards for remediation, because the Conservative omnibus bills have gutted environmental standards in Canada. Even before the omnibus bills and the LNG rush, cleaning up log dumps was on the DFO low low priority list.
The letter from DFO to District of Kitimat council shows what knowledgeable sources have told us, DFO will be navigating Clio Bay from a desk in Kamloops (of all places). The same sources say that the Prince Rupert office of DFO, which has the expertise on the northwest coast is out of the loop on this project. The residents of the northwest coast already know there are not enough fisheries officers to properly monitor the coast. DFO “estimates” the annual recreational halibut catch (perhaps by using fish entrails rather than the traditional chicken?). DFO has retired or laid off many scientists who have studied the coast. Others have left on their own. The remaining scientists are muzzled by the Harper government, with anything they could say filtered by the Prime Minister’s Office, so it is likely that no one in the northwest will actually trust what they say.
Normally in a free and democratic society, the government tells local residents when a major operation like the remediation of Clio Bay is going to occur. In this case, Fisheries and Oceans did not tell anyone in Kitimat anything until the District of Kitimat Council requested information.
On Monday, Sept. 30, a representative of Chevron will make a presentation to District Council. DFO did nothing more than send a letter that said: “Regretfully, Fisheries and Oceans Canada is unable to attend the scheduled council meeting.” Nobody, in the whole department? One is tempted to say, “That’s not good enough.” Then you remember that if DFO appeared before Council, the presenter would have to face possibly awkward questions from both members of Council and the media. That just doesn’t happen in Stephen Harper’s Canada, not in Ottawa and certainly not in Kitimat.
Despite what DFO has said in its letter, this regulatory vacuum leaves the Kitimat region no choice. Since Canada has no standards, when the Clio Bay project proceeds, the best available standards are those set by Alaska, which has the same type of coast and climate. The Clio Bay clean up should therefore be measured against those Alaska standards.
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