Tag Archives: Silverdale Water District

Are you ready to water the lawn with treated sewage?

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 .”

Kitsap plans to reuse 3.5 million gallons of effluent

When I first reported that Silverdale Water District was preparing to install a system of purple pipe for water reuse, it seemed the district was far ahead of everyone else in Kitsap County. Recall my story in the Kitsap Sun March 31, 2008, and the Water Ways entry that followed on April 2.

A new headworks at the Central Kitsap Wastewater Treatment Plant is part of major sewer upgrade designed to reuse the efflent.

Kitsap County commissioners started talking to Silverdale Water District commissioners a couple months later. See Kitsap Sun from June 2, 2008, and Water Ways from June 3.

Now the county commissioners are about to approve a six-year plan to design and install equipment capable of producing 3.5 million gallons of highly treated effluent every day, as I reported in Sunday’s Sun. That’s a lot of water, enough to irrigate ballfields throughout Silverdale with water to spare.

Now the ball is in the court of Silverdale Water District. District manager Morgan Johnson told me today that if the district can be assured of getting treated effluent from the Central Kitsap Wastewater Treatment Plant, it will move forward on building a backbone of purple pipe right into the heart of Silverdale.

If the county commissioners on Monday approve the six-year sewer plan and move ahead with a $41 million bond issue, it will be time for county officials to begin negotiations with those from Silverdale Water District. Tying up all loose ends about how much water will be provided as well as who will pay for what will be necessary to create one of the largest water-reuse systems in the Puget Sound region.

Morgan Johnson told me that he was surprised at how quickly the county commissioners embraced the notion of reusing treated wastewater, starting with that meeting more than two years ago.

“I was surprised that they’re taking this approach as aggressively as they are,” Morgan said. “We just need to know what the county’s schedule is.”

The county commissioners keep saying they are quite serious about their year-old “Water as a Resource” policy. Every county department must report annually about how they are advancing the effort to save and reuse as much water as possible. In a sidebar to my main story Sunday, commissioners Steve Bauer and Charlotte Garrido talked about how this policy can protect the water resource while saving the county money.

Stella Vakarcs of the Kitsap County Wastewater Utility said she would like to hold a “water summit” that would bring water and wastewater officials together to discuss the future of the effluent.

In addition to the CK plant, county officials are considering uses for treated effluent from the county’s plant in Kingston.

Meanwhile, officials with West Sound Utility District, which already produces high-quality effluent near Port Orchard, are getting ready to use that water for irrigation.

It will take about a year to design the upgrades at the CK plant. Construction is planned to begin in the summer of 2012, and the system should be completed about 2016.

If things go well, the purple pipes could be in the ground by then and ready to be charged with reused water.

I still say Silverdale’s water tastes the best

Silverdale’s drinking water is second-best in the nation, according to a panel of three judges at the American Water Works Association’s national conference in San Diego.

Considering that it took a last-minute tie-breaker to decide the outcome, I’m going to consider Silverdale’s water as “virtually” the best in the country. In the final taste-off, two judges picked water from Macon, Ga., and one picked water from Silverdale, according to Morgan Johnson, manager of Silverdale Water District.

For the full story about the taste-off and other winners, check out the story in today’s Kitsap Sun.

If you recall, I had a personal interest in the outcome of this competition, since my home sits on the aquifer where Silverdale Water District took its sample for the contest. Because of an experience my wife went through, I have declared her the ultimate taste-tester, and she thinks our water is best. For details, click over to my Water Ways entry of May 26.

Seriously, the water-tasting contest is not very serious. I’m sure a bunch of wells in Kitsap County contain water that taste identical to Silverdale’s as far as anyone can tell. And, since no one source of water wins the contest every year, there is room to spread the bragging rights around to other locales.

There’s also the issue of how the best water should taste. Someone commenting at the bottom of today’s story insists that the best water has no taste at all. Maybe he’s right.

We know that most drinking water contains various mixtures of minerals. Some contain organic compounds and metals. That’s why water from one place tastes different from another.

Does anyone know if distilled water has any taste? If it doesn’t, does that make it the best-tasting water in the world? (I guess I need to buy some distilled water and offer it to my wife for tasting.)