Watching Our Water Ways

UPDATE, May 4

The “Mayor’s Challenge” is over, and Bremerton Mayor Patty Lent says she is pleased that Bremerton placed first in Washington state and third out of more than 100 medium-sized cities in the West.

Read the news release issued by the mayor.
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UPDATE, April 27

Kitsap Sun reporter Steve Gardner wrote about the “Mayor’s Challenge” for yesterday’s print edition, helping to move Bremerton from the fourth spot to the third, where the city stands today. See “Bremerton faring well in conservation pledge contest.”

Bremerton Mayor Patty Lent, who has encouraged people to take the pledge at nearly every opportunity, was quoted as saying:

“We have a little hill to climb yet if we’re No. 4. I just want that pride within our city for us to take and beat out someone just to say we can do it.”

Since pledges are recorded by Zip Code, residents are not required to live inside the city limits to support their surrounding community, incorporated or not.
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UPDATE, April 12, 2012

Bremerton didn’t last long in the top spot of the “Mayor’s Challenge.” As of this morning, the city had been pushed down to number 2 in its category, replaced by Aliso Viejo, Calif.

Maybe it’s not so easy to stay on top. I’m sure Kathleen Cahall is already looking for ways to rally the populace in and around Bremerton. Maybe if everyone sent the link to friends in Bremerton? http://www.mywaterpledge.com

To help people understand the contest, feel free to use the buttons at the bottom of the main blog section to Tweet the entry, post it on Facebook or send the link by e-mail with a personal message attached. (E-mail is right before the “response” section.) Good luck again to those in Bremerton; please pardon the hometown bias.
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UPDATE, April 11, 2012

Bremerton, Wash., has taken over the top spot in the “National Mayor’s Challenge for Water Conservation,” among western communities with populations from 30,000 to 100,000 in population.

Sometime between yesterday morning — when I posted this blog entry — and this morning, Bremerton moved from second to first place. I suppose the challenge now is to hold onto that position. Everyone is eligible to join this challenge, which includes prizes for individuals.
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In what is being called the “National Mayor’s Challenge for Water Conservation,” Bremerton currently ranks second behind Newport Beach, Calif., in gathering water pledges among western communities with populations from 30,000 to 100,000 in population.

“It would be wonderful for Bremerton to capture the #1 spot,” Kathleen Cahall, Bremerton’s water resources manager, wrote to me yesterday in an e-mail.

Kathleen has done her best to stir up interest in the event, which also includes potential prizes for participants. Displays have been set up at various city locations; the contest has been mentioned on BKAT community access TV; e-mails have been sent to those on the city’s mailing list; a link has been placed on the city’s website; the event has been mentioned at a city council meeting; and the mayor and city employees have been handing out info cards at events.

To take the pledge, go to www.mywaterpledge.com before April 30.

I told Kathleen I would pass on the word about this contest, sponsored by the Wyland Foundation. If you take the pledge, you may gain some attention for your community and also become personally eligible for prizes, including a Toyota Prius.

While it’s called the “Mayor’s Challenge” and appears to be focused on cities, the contest actually is judged by postal Zip Code, according to Patti Romo of the Wyland Foundation. The goal is to obtain the greatest percentage of pledges among the population represented by a city’s Zip Code.

So if your Zip Code is 98310, 98311, 98312, 98314 or 98337, you are eligible to support Bremerton’s quest to make it to the top, even if you don’t live within the city. Bremerton city officials are strong supporters of water conservation and would love to get that kind of recognition. See the city’s website about conservation.

If you live somewhere else, you’ll get credit for supporting the “city” associated with the Zip Code where you reside — including Silverdale, Seabeck, Hansville, Tahuya and many more unincorporated communities listed by the Postal Service.

In signing the pledge, you’ll be asked if you are willing to take certain actions, such as wash only full loads of laundry. You don’t need to answer “yes” to all the questions to successfully meet the challenge.

It is kind of fun and seems like a good way to get all of us thinking about the choices we make. Again, the website for the challenge is www.mywaterpledge.com.

The Wyland Foundation, founded by environmental artist Robert Wyland, supports educational efforts that help people appreciate and support healthy oceans and waterways.

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Removal of the Elwha Dam and drawdown of Lake Aldwell behind it have gone faster than originally planned, and now the story of the Elwha River restoration becomes a story of erosion. Experts are watching the sediment movement very closely.

Taken today, this photo shows the sediment once impounded by the Elwha Dam but now free to move. The drawdown is on hold to allow the river to redistribute the sediment.
Elwha Dam cam, Natonal Park Service

The Elwha Dam has been entirely removed down to the river bed (see photos below), and the river is now flowing in its original channel, where it will remain. The river is being held back mainly by a “check dam” of boulders. At the moment, the drawdown has been halted at 133 feet elevation for a scheduled two-week holding period.

Andy Ritchie, restoration project hydrologist with Olympic National Park, says the pause in drawdown will allow the river to snake around to redistribute the sediment more evenly across the valley. The final target elevation for the river bed is 100 feet.

Drawdown of Lake Mills, behind the upper Glines Canyon Dam, also is on hold at the moment. Even more sediment is trapped behind that dam. While project managers have largely lost control over the movement of sediment behind the lower dam, the upper dam remains intact enough to control migration of sediment from farther up the canyon.

As the weather improves this spring (or at least we can hope), it may be time for many of us to visit the former lake beds at the two dams. We can walk out onto the deltas and see the new vegetation starting to grow. Lake Aldwell’s delta can be reached from the old boat launch. For Lake Mills, take Whiskey Bend Road, which has been reopened, and you will come to Humes Ranch trailhead with access from there.

(more…)

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After years of hearing bits and pieces about an Army Corps of Engineers investigation of the Skokomish River ecosystem, it seems that things are now moving toward work on a variety of projects. Many are of the type and scale that one would associate with the corps.

The public will get its first glance at 40 or so potential projects during an open house and slide show next Thursday beginning at 5 p.m. at the Mason County Public Works Building, 100 West Public Works Drive in Shelton. Review the news release (PDF 44 kb) on the event.

The Skokomish Watershed Action Team (SWAT) surveys an area where the Skokomish River has wiped out all vegetation and left a massive gravel bar.
Photo by Steve Zugschwerdt

The 40 or so projects to be presented at next week’s meeting are only at a conceptual stage. They must undergo further feasibility studies and cost analyses. A draft feasibility report and environmental impact statement are scheduled for release in August 2013.

As I mentioned in January, the corps is no longer focused on controlling flooding in the Skokomish Valley. Still, much of the ecosystem-restoration work could provide some flood relief. See Kitsap Sun, Jan. 22, and Water Ways, Jan. 25.

Jessie Winkler, project manager for the Army Corps of Engineers, told me in January:

“Clearly, flooding is a problem in the basin. But because of limited residential and commercial activity, it would be very difficult to justify a flood-control project. In order to be justified as a federal project, the economic benefits must be greater than the cost.”

Here are some of the preliminary projects to be described at next week’s meeting:

• Install aeration or oxygenation system in Annas Bay to reduce the dissolved oxygen problem
• Add a cool water diversion to Annas Bay to improve water quality
• Restore eelgrass beds in Hood Canal west of the river’s delta
• Restore oyster beds in Hood Canal within the delta area
• Remove additional roads and levies in the lower flood plain and delta
• Relocate West Valley Road
• Widen Highway 101 bridge
• Widen Highway 106 bridge
• Reconnect wetland at River Road
• Modify Agency Road to improve flow conditions
• Rehabilitate channel for Skabob Creek
• Address levee and side channels on Hunter and Bourgault farms
• Address car body levee and improve channel for lower Weaver Creek
• Reconnect Weaver Creek side channel
• Setback the Grange dike
• Remove Hunter Creek blockage
• Install a sediment trap after dredging the main channel downstream of Vance Creek
• Reconfigure main channel upstream of Vance Creek
• Reconnect Sunnyside channel
• Remove or setback levees upstream and downstream of Vance Creek

Projects may include adding salmon-spawning habitat and/or large woody debris, removing invasive plants, planting native vegetation, improving fish passage, removing gravel on gravel bars and spot-dredging.

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Flood control is no longer a primary objective of federal restoration work on the Skokomish River — but improving the ecosystem is likely to reduce flood problems for people who live in the valley.

The Skokomish Watershed Action Team (SWAT) surveys an area where the Skokomish River has wiped out all vegetation and left a massive gravel bar.
Photo by Steve Zugschwerdt

We don’t need to be reminded that the Skokomish is the most frequently flooded river in the state. Although I’m not sure how soon another river might take over that dubious distinction, it’s easy to see that a lot of time and money is being spent to get the river back to a more natural condition.

The Army Corps of Engineers, known for massive projects such as dikes, dams and dredging, won’t be adopting those sorts of projects for the Skokomish River.

Jessie Winkler, Skokomish project manager for the Army Corps of Engineers, explained it this way:

“Clearly, flooding is a problem in the basin. But because of limited residential and commercial activity, it would be very difficult to justify a flood-control project. In order to be justified as a federal project, the economic benefits must be greater than the cost.”

For further explanation, check out my story in Monday’s Kitsap Sun.

The good news is that the Corps has not turned its back on the Skokomish. In fact, the river is considered so important to the Hood Canal region that the agency is considering some large-scale projects focused on environmental restoration — including possibly relocating Skokomish Valley Road.

Other interesting ideas include creating sediment traps to capture gravel in selective locations, relocating existing dikes to create a wider river channel, forming new side channels to relieve flow on the main river and even aeration pumps to boost oxygen levels in Hood Canal.

Many of the projects designed for ecological improvement will also reduce the flooding problems.

A report, scheduled to be released in late spring or early summer, summarizes all information collected so far in the $4.7 million study of the Skokomish River watershed. The report will cover current ecological conditions, future ecological conditions without restoration and a list of potential restoration projects — including preliminary design, estimated costs and ecological benefits, Winkler told me.

Potential projects are only conceptual at this point, though experts have begun to look at locations along the river where different types of efforts may be fruitful. Further study will narrow the list of to a plan to be submitted to Congress for funding.

The upcoming report will begin to explore which of the following actions are most likely to succeed in specific locations:

• Remove or breach levees/dikes
• Construct setback levees/dikes
• Create salmon spawning habitat
• Reconnect wetlands, side channels, backwater areas, and tributaries
• Substrate modification
• Install aeration or oxygenation system in Annas Bay
• Reconnect dendritic channels in estuary
• Large woody debris
• Engineered Log Jams
• Fish passable weir
• Channel stabilization
• Riverbed and wetland vehicle exclusion
• Enhance vegetation – riparian & estuarine
• Control invasive species
• Channel rehabilitation or new channel creation
• Selective gravel removal on gravel bars
• Spot-dredge
• Sediment trap
• Culverts: a) add; b) remove; c) replace; d) upgrade
• Road modifications
• Rehabilitate bank lines
• Cool water diversion to Annas Bay

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The Washington King Tide Initiative is entering its third year, and state officials would like people to shoot photographs of flooded roads, yards and buildings — if such events occur.

In 2010, the high tide at the mouth of Gorst Creek comes close to reaching Toys Topless at the head of Sinclair Inlet in Gorst.
Photo by Meegan M. Reid, Kitsap Sun

High tides are expected to continue for the next few days and return to high levels again in mid-January. Whether flooding occurs at any one place depends on rainfall, winds and atmospheric pressure, as well as tidal levels dictated by the position of the moon and sun. (See NOAA Ocean Service Education.)

Not much flooding occurred during king tides last year, but plenty of photographs were collected in early 2010. That’s when the picture on this page was taken in Gorst between Bremerton and Port Orchard. For additional photos, check out the Flickr page or the video slide show put together by the Washington Department of Ecology.

Taking note of these high tides is one way to gauge how climate change may affect shoreline areas. Over the next 100 years, sea level is expected to rise by at least 2.6 feet, according to the U.S. Fish and Wildlife Service, although previous estimates by the Intergovernmental Panel on Climate Change were in the range of 7 inches to 2 feet.

The King Tide Initiative started in Australia in 2009, according to Ecology’s website on King Tides, but it soon became a project for the West Coast of North America, with Washington and British Columbia joining in 2010 and Oregon and California joining in 2011.

Visit Flickr pages for British Columbia, Oregon and California, which includes regional pages for San Francisco Bay, Santa Monica and San Diego.

For a list of high tides, go to Ecology’s King Tide Schedule page and click on the map. More precise information can be found on NOAA’s page of tide predictions, where you can zoom in to your area of interest.

For past King Tide events, check out my Water Ways entries for Jan. 21, 2011 and Feb. 1, 2010.

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It’s the water, or maybe it’s just the nasty stuff that’s in the water.

A new series of studies by federal researchers is delving into the question of which pollutants in urban streams are killing coho salmon.

David Baldwin of Northwest Fisheries Science Center mixes a chemical soup of pollutants found in urban stormwater. Coho salmon will be kept in the brown bath for 24 hours to measure the effects.
Photo by Tiffany Royal, Northwest Indian Fisheries Commission

As I describe in a story in today’s Kitsap Sun, the new studies involve coho returning to the Suquamish Tribe’s Grovers Creek Hatchery in North Kitsap.

Of course, pollutants in streams are just one factor affecting salmon in the Puget Sound region, where development continues to alter streamflows and reduce vegetation, despite efforts to protect and restore habitat. But pollution may play a role that has gone largely unnoticed in some streams.

The new studies continue an investigation that began more than a decade ago with the involvement of numerous agencies. By now, most of us have heard about the effects of copper on salmon, but the latest round of studies will look at the collection of pollutants found in stormwater to see how they work together. It may be possible to pinpoint the chemical concentrations that result in critical physiological changes in salmon.

The latest work involves a team led by David Baldwin of NOAA Fisheries and Steve Damm of the U.S. Fish and Wildlife Service. The Suquamish Tribe is providing the fish, along with facilities and support.

For information on the ongoing effort to understand how toxic chemicals affect salmon, review these pages on the website of the Northwest Fisheries Science Center:

Acute die-offs of adult coho salmon 
returning to spawn in restored urban streams

The impacts of dissolved copper on olfactory 
function in juvenile coho salmon

Mechanosensory impacts of non-point source pollutants in fish

Cardiovascular defects in fish embryos exposed 
to polycyclic aromatic hydrocarbons

A page called “Coho Pre-spawn Mortality in Urban Streams” presents a series of videos that show the advance of an apparent neurological disease that first causes disorientation in coho salmon and then death. The video is taken in Seattle’s Longfellow Creek, an urban stream.

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Salmon-watching season may be somewhat shortened this year, but recent rains have encouraged large numbers of fish to swim into streams on the Kitsap Peninsula and probably elsewhere in Puget Sound.

A coho salmon tries to leap into an outlet from the salmon-rearing ponds at Otto Jarstad Park in Gorst last week.
Kitsap Sun photo by Meegan M. Reid

It appears that coho and chum salmon were hanging out in saltwater waiting for adequate rains, which arrived last week. I covered the issue fairly extensively in a story in Friday’s Kitsap Sun.

Normally, the peak of the chum salmon run occurs around Thanksgiving on the east side of the Kitsap Peninsula. Jon Oleyar, a biologist with the Suquamish Tribe, tells me that the salmon run is probably now on the decline, with dead and dying fish beginning to be seen today in larger numbers.

For most of this week (at least after tomorrow night), the rains will probably hold off for awhile. Check out the forecast from the National Weather Service. Drier weather could help the streams run clearer.

Salmon-watchers on the Kitsap Peninsula have seen a decline in coho in recent years, and biologists say it is probably because streamflows have become more “flashy.” More roads and other impervious surfaces carry water to the streams faster and allow for less infiltration. Losing infiltration means lower summer flows, which are important for coho, because coho remain in freshwater the first summer of their lives.

Anyway, this year we’re seeing more coho in the local streams. Jon tells me they are mainly hatchery fish, probably strays from the Suquamish Tribe’s net pens in Agate Passage. Those fish were meant to improve fishing for both tribal and sport fishers, but some got away. Whether the coho hatchery strays are beneficial or harmful to the wild runs remains a subject of debate.

Some of the best salmon-viewing spots are shown on an interactive map that Angela Hiatt and I made four years ago. See Kitsap Salmon runs. If anyone knows of other good spots with public access, please share them in the comments section.

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Five years of studies and analysis have helped refine our understanding about the toxic pollution getting into the streams of Puget Sound and eventually into the open marine waters.

The latest study on toxic chemicals (PDF 3.1 mb) Click on image to download

The final report in the series was released yesterday, prompting a story I wrote for today’s Kitsap Sun.

When accounting for all the pollution, it’s not surprising to learn that the sources of toxic chemicals are so diverse that it is difficult to figure out where everything is coming from. But we do know that if chemicals are picked up in stormwater, they are likely to make their way into freshwater, where they pose short-term or long-term risks to aquatic organisms.

The solutions are common sense, if one can be assured of the sources of harmful chemicals:

1. Remove materials from the environment if they are found to release toxic pollution. This can involve a legal ban on certain products or else educating people to select less toxic alternatives.
2. Reduce the amount of stormwater that flows into streams by infiltrating rainwater into the ground before it leaves the site. This “low-impact development” can include permeable pavement, rain gardens and even natural forests where a thick organic carpet has been retained.
3. Clean sediment out of storm drains and sweep up the dust on city streets and other areas where toxic chemicals are likely to reside in metallic form or be bound to soil particles. Safely dispose of these materials. When the rains arrive, there won’t be much left to wash into streams.

While all this sounds simple enough, the issue gets complicated when trying to decide which products to ban and when to recommend that people voluntarily stop using certain items. Alternative products may cost more, which tends to raise questions among users. Also, manufacturers and retailers are not likely to give up selling profitable products without a fight.

Further complicating the situation is the scientific uncertainty surrounding the alleged harm when someone declares a product not good for the environment. Such uncertainty inevitably sparks scientific, economic and policy debate about whether the proposed action is justified.

For example, the Washington Legislature approved a ban on automobile brake pads containing certain levels of copper. Brake pads are believed to release enough copper to harm salmon in some urban streams. But the metallic form of copper found in brake pads is not toxic until it is converted to an ionic form. How much gets converted in the environment is still a question. For details, see a story I wrote for the Kitsap Sun in March of 2010.

As for the latest study released yesterday, some additional focused research and debate may be needed before further actions can be taken.

For example, questions are raised about the total amount of toxic metals leached from roofing materials, including common asphalt shingles. Copper, cadmium, lead and zinc are listed as contaminants along with diethylhexyl phthalate (DEHP).

As suggested by the report, direct studies of roofs in the Puget Sound region could help determine the potential harm of various roofing materials and suggest whether bans or advisories are appropriate.

The amount of polycyclic aromatic hydrocarbons (PAHs) coming from creosote-treated wood was something of a surprise in the report. If anything, the findings tend to support the ongoing effort by the Department of Natural Resources, which has been removing creosote pilings from shorelines. Further studies might help to focus removal efforts in areas most sensitive to creosote compounds.

The latest report, which includes discussions about the uncertainties, is called “Assessment of Selected Toxic Chemicals in the Puget Sound Basin, 2007-2011.” You may also wish to review all the toxics work to date on Ecology’s webpage called “Control of Toxic Chemicals in Puget Sound.”

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It seems as if it has taken forever for someone in Kitsap County to put treated sewage to beneficial use, but a demonstration project on Retsil Road in South Kitsap is just around the corner. Check out my story in Saturday’s Kitsap Sun.

Darren Noon of Pape and Sons Construction Co. welds a section of "purple pipe" along Retsil Road in South Kitsap, the first reclaimed water project in Kitsap County.
Kitsap Sun photo by Meegan M. Reid

Local water experts were contemplating uses for highly treated wastewater even before “low-impact development” became a common phrase for infiltrating stormwater into the ground.

LID has caught on fairly quickly as a method of keeping polluted stormwater from reaching our streams and Puget Sound. The concept got an extra push from new stormwater regulations, which have greatly increased the cost of conventional pipe-and-pond methods of stormwater management.

The less-touted benefit of LID is groundwater recharge, which boosts our long-range water supply.

Kitsap County’s Watershed Management Plan (PDF 147 kb), developed in 2005, estimated that Kitsap County’s sewage treatment plants release 8 million gallons of treated water into Puget Sound each day. That’s enough to increase the base flow of 10 streams by 10 cubic feet per second, raise aquifer levels throughout the county or launch a new industry without touching our drinking water supplies.

“The most significant barriers to recycling wastewater are the cost of infrastructure and additional treatment, as well as public perception,” the report states. “Elected officials in WRIA 15 (the Kitsap Peninsula) have expressed support for public education about reclaimed water.”

The report mentions that highly treated effluent from the Central Kitsap Wastewater Treatment Plant near Brownsville could be used to supplement streamflows in nearby Steele Creek. But more recently Kitsap County and Silverdale Water District have begun working together on a plan to pipe the water into the heart of Silverdale, where it can be used to water ballfields and landscaping.

That’s also the initial plan put forth by West Sound Utility District, as I mentioned in Saturday’s story. Using wastewater for irrigation cuts down on peak demand, which is what drives water utilities to drill new wells. Needless to say, drilling deep wells comes at a tremendous expense — an expense that grows greater as Kitsap County approaches the limits of its groundwater supplies in some locations.

To many people, using reclaimed wastewater seems like a novel idea, especially in an region known for its rain. People remain squeamish about getting anywhere near sewage water, even if it is treated. But I don’t believe it will take long for people to accept the idea of using treated wastewater for irrigation, once they realize it is treated to basically the same level as drinking water.

On the other hand, drinking treated effluent becomes another issue, even though it has been done indirectly for years in many places. If you live in a town on the Mississippi River, your local utility may be drawing water out of the river for your consumption just downstream of where a sewage treatment plant is dumping its effluent.

There are several other places where reclaimed water is mixed with freshwater, such as in a reservoir, then drawn back out for drinking. Ironically, putting the wastewater into a reservoir makes it seem more palatable, even though it probably was cleaner before. Treating the water in the reservoir is essentially treating the wastewater again — although water is just water in the end.

For a description of reclaimed water systems in the U.S. and elsewhere in the world, check out a fact sheet compiled by Queensland Water Commission, Australia: “Water recycling: Examples from other countries” (PDF 592 kb).

A community in Texas made news across the country last week, when reporter Angela Brown of the Associated Press wrote about a new $13-million water-reclamation plant to turn effluent into drinking water, the first to be built in that state. Really, it is nothing new, as Angela herself points out.

What I have not found anywhere so far is a direct use of reclaimed water. That’s what you would get by pumping the highly treated wastewater directly into a municipal water system’s piping network. From a health standpoint, there would be nothing wrong with that, provided the water could be shut off in the event of a problem at the treatment plant. No doubt this kind of direct use will be a little harder to get used to, even in areas where water is scarce.

Alix Spiegel of National Public Radio does a nice job analyzing the psychology behind the aversion to using treated wastewater and why people are more accepting of indirect use. Read or listen to “Why Cleaned Wastewater Stays Dirty In Our Minds .”

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Water-quality leaders in the Washington Department of Ecology and U.S. Environmental Protection Agency were quick to respond yesterday to a Seattle Times’ story, which begins:

“Seattle and King County are poised to spend more than $1.3 billion of ratepayer money on pollution-cleanup programs that won’t even move the water-quality needle in Puget Sound.”

Yesterday’s story, by reporter Linda Mapes, is about combined sewage overflows — something that Bremerton knows a little about, having completed a cleanup program after 20 years and $50 million in expenditures. See my story from May 30 in the Kitsap Sun.

The premise of Linda’s story is that it might be better for local governments to focus on reducing stormwater overall rather trying to meet a 1988 state pollution standard focused on raw sewage discharges. After all, the reasoning goes, stormwater containing toxic chemicals may be worse for Puget Sound than stormwater mixed with sewage.

The state requirement, by the way, limits discharges of raw sewage in stormwater to one overflow per year, on average, for each outfall pipe.

There is plenty of room for disagreement, as the Times’ story points out. Christie True, director of King County Natural Resources and Parks, stresses that upcoming CSO projects will reduce the public’s exposure to untreated sewage. But Larry Phillips, a member of the King County Council, says dollars spent on CSO projects can’t be spent on buying habitat or attacking the surface-runoff problem, which the Puget Sound Partnership has deemed the region’s top priority.

Bill Ruckelshaus, the first administrator of the EPA and former chairman of the Puget Sound Partnership’s Leadership Council, was quoted as saying:

“This is just crazy; we don’t have unlimited funds in this country, and whatever we do, we ought to spend where we get the most bang for the buck … Cost-benefit has not been part of the discussion.”

David Dicks, former executive director of the partnership and now a member of the Leadership Council, said this:

“It’s just momentum. And what you learn in these things is you can go in and scream and yell and be a revolutionary for a while, but the institutional momentum of these laws has a lot of power, and it is just dumb power. … What we need to do is turn off the autopilot and see what makes sense here.”

Ecology and EPA officials took a stand in favor of the existing rules for reducing sewage discharges. Both issued quick responses to the Seattle Times article, writing on a blog called ECOconnect

From Kelly Susewind, manager of Ecology’s Water Quality Program:

“Infrastructure investments are needed to address water pollution caused by both CSO and stormwater discharges. In areas served by combined systems, CSO projects provide solutions to both CSO and stormwater pollution.

“The investments ratepayers make in their communities’ CSO programs protect public health and Washington’s waters, two principal missions of sewer and stormwater utilities. The success of these projects advances the goals of our state and federal laws to protect, clean up and preserve our waters for present and future generations.”

Adds Dennis McLerran, EPA’s regional administrator:

“Discharging large amounts of raw sewage to Puget Sound and Lake Washington is simply not acceptable. That’s why EPA has worked closely with the state, King County and Seattle over many years to address sewage treatment and the ongoing problem of Combined Sewer Overflow (CSO) pollution. With that work nearly completed, now is not the time to lose our resolve to finish the job visionary leaders in the Puget Sound region started some 40 years ago.”

Cost versus benefits for Bremerton CSO project (click to enlarge)
Kitsap Sun graphic

Shellfish were not mentioned in this discussion — maybe because it was focused on Seattle and King County, where industrial pollution is a major problem. In Kitsap County, shellfish are worth millions of dollars a year to the local and regional economy. For Dyes Inlet, the reopening of shellfish beds probably would not have happened except for a lawsuit that forced the city of Bremerton to comply with the federal Clean Water Act on a strict time schedule.

Lisa Stiffler, former PI reporter who now works for Sightline Institute, discussed Bremerton’s accomplishment with a focus on the cost. See “How Bremerton cleaned its waters, and came to wonder about the costs” in the online publication Crosscut.

A case can be made that shellfish beds in Dyes Inlet could have been cleaned up enough to be reopened by spending just the first $33 million, thereby saving the extra $17 million that it took to bring the city into full compliance with federal law.

But state and county health officials have told me on many occasions that Bremerton and Kitsap County, along with local residents, must continue to work hard to keep the Dyes Inlet shellfish beds open. Beaches in the inlet remain on the verge of closure again, and population growth tends to exacerbate the bacterial pollution.

Kitsap County Health District is respected for its monitoring and pollution-fighting program, but it does help to know that release of raw sewage into the inlet has become a very rare event.

Lisa makes a good point when she says Bremerton would have saved money if engineers would have known more about low-impact development during the planning for CSO reductions. Infiltrating rain water near the source (preferably before it runs off the property) reduces the need to deal with stormwater flowing through pipes. Keeping stormwater out of sewer lines by using LID techniques effectively allows the pipes to carry all the sewage to the treatment plants, even during heavy rains.

Bremerton has become a leader in LID. If city officials had known 20 years ago what they know today, they probably would have spent more on pervious pavement and rain gardens and less on expensive piping networks. But it appears they did their best with the knowledge they had — and LID has become a major part of ongoing efforts to address stormwater.

Cities still working on CSO problems may find Bremerton’s experience helpful. Keeping stormwater out of pipes is proving effective, whether or not those pipes also contain sewage.

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