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City expects $39 million Army Corps of Engineers-led filtration system at North Fork Reservoir to start running Friday • Asheville Watchdog

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avlwatchdog.org – JOHN BOYLE – 2024-12-04 11:00:00

While the City of Asheville has restored potable water to its 63,000 customers, it’s still struggling with high turbidity at its main reservoir, North Fork.

Filtering that cloudy water remains a challenge, but major assistance is on the way this week in the form of a $39 million six-month project spearheaded by the Army Corps of Engineers to install a mobile filtration system at the reservoir. The city and the Corps planned to start testing the system this week, and Asheville Water Resources spokesperson Clay Chandler said it should be operational by Friday.

Chandler addressed the plan at the Monday Tropical Storm Helene briefing and then answered followup questions via email. Plans call for the system, which will be run by a contractor, to run continuously at North Fork Reservoir, which is located outside of Black Mountain and provides water to 80 percent of the city’s residents.

“Its production will start small, around 5 million gallons per day, and ramp up from there,” Chandler said. “Eventually, the Corps of Engineers system will do most of the heavy lifting, with North Fork’s existing processes providing support, to produce the average daily demand of 20-25 million gallons of water.”

The city restored untreated water to most customers in mid-October and potable water Nov. 18. But turbidity remains a concern.

“While North Fork has been able to meet system demand on its own for several weeks, we’re still one snowstorm or other especially windy weather event from the turbidity becoming unmanageable for our existing treatment processes,” Chandler said. “The Corps of Engineers system will provide a critical layer of security that will keep our customers in water should that happen.”

Chandler said the Federal Emergency Management Agency will cover the cost of the project.

Army Corps of Engineers spokesperson Patrick Moes said the North Fork Reservoir Turbidity Reduction Project contract was awarded to Ahtna/CDM Smith on Nov. 8.

“With respect to the design of the project, we provided the holistic performance requirements such as a gallons per day requirement (25 million), pumping requirements, etc., and the contractor executed the plan,” Moes said via email.

“The $39.2 million contract is for six months, with options to extend the work beyond the initial performance effort. The extension options include two additional six-month intervals, but we have not had those discussions at this point.”

Ahtna and CDM Smith have worked together on other projects. Ahtna’s website states the corporation is “one of 13 Alaska Native Regional Corporations established by Congress under terms of the Alaska Native Claims Settlement Act of 1971.

“Based in Glennallen, Alaska, Ahtna, Inc. is owned by more than 2,000 shareholders, the majority of whom are of Ahtna Athabascan descent,” the site continues. “Many Ahtna shareholders still reside in the Ahtna region, the traditional homeland of the Ahtna people.”

Nearly a month after Tropical Storm Helene knocked out the City of Asheville’s water system, North Fork Reservoir remained a murky brown. The city restored untreated water to most customers in mid-October and potable water Nov. 18. But turbidity remains a concern. // Credit: City of Asheville

Ahtna’s subsidiaries provide a range of services across many industries, construction and government contracting, according to the website. It works in all 50 states.

CDM Smith is a privately owned engineering and construction company that offers service in “water, environment, transportation, energy and facilities,” according to its website. Its world headquarters is in Boston.

After Helene caused extreme flooding and heavy runoff into North Fork, on Sept. 27, essentially turning the 350-acre lake upside down, the measurement of turbidity, Nephelometric Turbidity Units (NTUs), stood at 79. The raw water coming into North Fork, which is surrounded by a largely undeveloped 20,000-acre watershed, usually has a measurement around 1. By Monday it had dropped to 12.7.

The city has taken several measures to reduce turbidity, including three rounds of in-lake chemical treatments to help sediment coagulate and sink, and the installation of “turbidity curtains” designed to help still the water and foster coagulation of clay particles.

With the Army Corps’ help in constructing a pilot plant at North Fork to see what level of turbidity the reservoir’s direct filtration system can handle, the city discovered it was able to filter and treat higher turbidity water than previously thought. Initially, the city said turbidity would have to drop to the 1.5-2.0 level before treatment began, but it realized via the pilot plant that it could treat water with NTU levels in the teens.

The three in-reservoir treatment applications at North Fork involved dispersing aluminum sulfate, a coagulant, and caustic soda, which regulates the water’s pH levels to ensure optimum coagulation and sinking of clay particles. The turbidity improved, but it has been slow going: It remained in the 20s through October before dropping into the teens in November.

The water coming to customers’ taps is potable now and has a very low turbidity level, about .1, the city said previously. That’s well under EPA requirements.

‘Seasonal flip” may help turbidity

On Monday, Chandler noted another phenomenon that could help with turbidity: “the seasonal flip.”

“So, when the water gets really cold, like it’s about to get because it’s really cold outside, it does exactly like the term ‘flip’ sounds. It takes everything that’s on or near the bottom and puts it near the top, and takes everything that’s at or near the top and puts it on the bottom,” Chandler said. 

The city is fairly certain that a seasonal flip occurred at the Bee Tree Reservoir in the past few days.

“We believe that the reservoir at North Fork is going to do its seasonal flip sometime this week,” Chandler said Monday. “Bee Tree Reservoir did its seasonal flip, we are reasonably certain, last week, which drastically lowered the turbidity there — finally got it under 100 in the lower depths of the Bee Tree reservoir.”

It had stood near 500. 

Bee Tree, located in Swannanoa, is much smaller than North Fork, but the seasonal flip results are encouraging for North Fork, Chandler said, because if the larger reservoir sees a similar shift, it could significantly lower turbidity.

The city announced it was awarding the contract to the Army Corps on Nov. 8. Chandler said the Corps is delivering the filtration system on time, “exactly fitting the timeline that they originally gave us.” 


Asheville Watchdog is a nonprofit news team producing stories that matter to Asheville and Buncombe County. John Boyle has been covering Asheville and surrounding communities since the 20th century. You can reach him at (828) 337-0941, or via email at jboyle@avlwatchdog.org. The Watchdog’s local reporting during this crisis is made possible by donations from the community. To show your support for this vital public service go to avlwatchdog.org/support-our-publication/.

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School software provider is the latest target of major hack of personal data • NC Newsline

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ncnewsline.com – Paige Gross – 2025-01-10 10:05:00

SUMMARY: A data breach at California-based PowerSchool compromised sensitive information of millions of students and parents, including addresses, Social Security numbers, and grades. The breach, occurring in December, involved hackers using stolen credentials to access the internal customer support portal. PowerSchool serves over 50 million students and was extorted to pay a sum to avoid data leakage. As cybercrime continues to rise, with 880,418 complaints reported in 2023, experts emphasize the importance of cybersecurity measures and consumer data privacy laws. Individuals can improve “cyber hygiene” by using unique passwords, enabling multi-factor authentication, and monitoring their accounts for unusual activity.

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How did the WNC Nature Center animals fare after Helene? More Spectrum billing complaints? Why not more ‘hardening’ of North Fork water transmission lines? • Asheville Watchdog

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avlwatchdog.org – JOHN BOYLE – 2025-01-10 06:00:00

Today’s round of questions, my smart-aleck replies, and the real answers:

Question: I have heard nothing about the WNC Nature Center or the animals. Were the animals OK after Helene?

My answer: Physically, yes. But they’re emotionally wounded about not getting their $750 emergency checks from FEMA yet. 

Real answer: Good news on the animal front.

“I’m happy to tell you that all the animals survived the storm and are doing well,” Vanessa Tsumura, marketing and events manager at the WNC Nature Center, said via email. “While the Nature Center did not suffer serious damage, Swannanoa River Road and the bridge to Gashes Creek Road were heavily damaged. For that reason, the park is closed and we have not announced a reopening date.”

The center will announce a reopening date on social media and its website as soon as possible, she added. The center notes that although it’s closed, “you can still book custom experiences, including private, guided tours and other small events,” and its outreach team is still offering off- site programs with ambassador animals.

Located in east Asheville, the Nature Center is a local favorite, well-known for its black bears, river otters, cougars, coyotes, red pandas, and more.

In a November newsletter, Center Director Chris Gentile noted how it relied on the support of nearby Highland Brewing to be able to access the center right after the storm.

“We all feared the worst but were overjoyed to discover that although we had damage to many of our fences and walking paths, all of the animals in our care survived the storm,” Gentile wrote. “Our dedicated team immediately got to work setting up generators, procuring gasoline, and rounding up potable water so that we could do necessary animal care. Our amazing partner Appalachian Wildlife Refuge arrived with food for animals and humans alike, and suddenly we all started to feel like we could make it through this challenging time — we had partners and community members who were there to help us — we were not alone.”

Cougars Noa and Hayla are two of the animals at the WNC Nature Center. All of the animals at the center survived Tropical Storm Helene. // Photo provided by WNC Nature Center

The North Carolina Zoo sent a team of arborists and welders to help with repairs, and multiple other zoos reached out to help out with supplies, including the Knoxville, Kansas City, Saint Louis, Topeka, Dickerson Park (Springfield, Missouri) and Blank Park (Des Moines, Iowa) zoos.

“While we have made incredible progress, there are still challenges ahead,” Gentile wrote. “The timeline for fully restoring the main access to our Center is still unclear and could take months still to complete. We are however continuing to work closely with the City of Asheville as we look to find solutions that would allow guests to come back on-site as soon as possible.”

Question: I recently received the below email from Spectrum regarding a credit for service outage during the Helene aftermath. If I am reading correctly, I am only receiving a credit for the time that Spectrum service was out after Duke power was restored. Like a lot of folks who stayed post Helene, I have a generator and if service was available I would have been able to utilize it. The wording makes it seem like the Duke outage caused the Spectrum outage. This seems a bit cute to me. What say you?

Spectrum email: Hurricane Helene Credit

Hello Spectrum Customer,

A credit has automatically been applied to your account for Hurricane Helene, covering the days that you didn’t have service after power was restored.

The credit will appear on your next bill, or you can see it now by visiting Spectrum.net/billing, then selecting Activity, and then Transactions.

If you’re still experiencing a service issue, please contact us.

Thank you for being a Spectrum Customer,

Spectrum Support Team

My answer: I say it’s not quite as cute as those red pandas at the WNC Nature Center.

Real answer: I’ll note that I’ve had some other folks ask about Spectrum’s billing and crediting practices in the wake of the storm, and I sent along another one of those questions to Spectrum spokesperson Patti Michel.

“Credits are being applied, and if customers have questions about their credits they should contact us and our customer service teams directly, who are best equipped to answer and explain account related questions,” Michel said.

I realize this is not terribly helpful.

Spectrum notes that, in general, “Credits are being applied for the period of time when service was out after power had been restored.”

“Customers who haven’t yet received a credit should see it on their next bill and should be able to see it online within 24 hours,” Spectrum says, noting that you can log onto your account and check the credit within the billing tab, under “current activity section” and then “credit & charges.”

Good luck, and let me know if you aren’t getting fair treatment.

Question: Neither you nor the City of Asheville seem to have mentioned the possibility of hardening the path of the existing water lines with concrete walls. They would need to be buried to the depth of the pipe, and/or line the river bank where it parallels the pipelines. It would be very expensive, but it might be competitive with installing new lines in a new right-of-way that would avoid the possibility of erosion damage from a future Helene-level storm event. Would you ask the city to consider that alternative?

My answer: Sure. I’m always happy to ask the city to spend a hundred million bucks here and there.

Real Answer: Water Resources Department spokesperson Clay Chandler pointed out a couple of big issues with this idea.

In the days following Tropical Storm Helene, workers repaired a 36-inch pipe at the North Fork Reservoir. Asheville water customers did not have potable water for 52 days following the storm. // Photo provided by City of Asheville

“First, the cost,” Chandler said. “The amount of concrete needed would far exceed our financial capabilities. There also exists a range of complications when it comes to accessing in the event of a leak or break water lines either wholly or partially encased in concrete.”

In other words, it would be tough to jackhammer through concrete to reach a broken line.

The two main lines out of North Fork were buried pretty deep under the road that leads to the treatment plant, and the bypass line, designed as a backup, was down at 25 feet. But all three still washed out under Helene’s relentless rainfall on Sept. 27.

Chandler did say the department’s primary focus, beyond daily operations and keeping the water running, is increasing resiliency.

He noted several projects that would help considerably with resiliency:

  • Sediment basins for the six filters at North Fork and two filters at Bee Tree, which would allow the city to treat especially turbid water. Approximate cost: $101 million.
  • An alternate bypass line at North Fork that is geographically separate from the current bypass. Approximate cost: $20 million.
  • Longer term, a treatment plant in West Asheville that pulls from the French Broad River. Approximate cost: Depending on exact location and design, between $20 million-$50 million.

“Each of those projects would obviously require outside funding,” Chandler said. “Taken together, they would certainly require full or almost-full funding from our partners with the state, the feds or both.”


Asheville Watchdog is a nonprofit news team producing stories that matter to Asheville and Buncombe County. Got a question? Send it to John Boyle at jboyle@avlwatchdog.org or 828-337-0941. His Answer Man columns appear each Tuesday and Friday. The Watchdog’s reporting is made possible by donations from the community. To show your support for this vital public service go to avlwatchdog.org/support-our-publication/.

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Republican lawsuit seeks to throw out votes in all North Carolina statewide races • NC Newsline

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ncnewsline.com – Lynn Bonner – 2025-01-10 05:00:00

SUMMARY: In a Wake Superior Court hearing, Judge Jefferson Griffin seeks to discard over 60,000 ballots to unseat Democratic Supreme Court Justice Allison Riggs, who leads by 734 votes. While Griffin’s efforts focus on his race, a separate Republican lawsuit aims to invalidate votes in all statewide contests. Republicans claim many voters lacked driver’s license or Social Security numbers, arguing these individuals are unregistered. However, state law does not mandate such information. The Democratic National Committee plans to oppose the GOP suit, arguing it disenfranchises long-registered voters, undermining election integrity amid already certified results.

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