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Angler researches lowering lakes from the bottom to cool waters and help trout survive

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Angler researches lowering lakes from the bottom to cool waters and help trout survive


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An avid angler believes allowing more water to be released from the bottom of lakes will give coldwater fish like trout a better chance to survive the hot summer months.

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“I would notice that Laurel Hill Creek would super heat in the really warm months of summer,” said John MacDonald, 66, of Rockwood, Somerset County. 

“The trout would suffer horribly, many would die and the ones that didn’t, took refuge downstream and left the area.”

In the heat of the summer, MacDonald would wear snorkeling gear and swim down the creek looking for fish.

“I noticed they would hide in the deeper pools,” he said, “and I would find a cold water spring down there, that they were all huddled up against.”

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Ongoing research

About five years ago, he approached Camp Soles, a nearby children’s camp, about opening their lake’s bottom drain pipe to release some of the colder water to see how that would impact the temperature of the water flowing downstream. The camp’s 18-acre lake flows into Lost Run and then into Laurel Hill Creek.

“We had to make sure that at all times that water flowed over the top for the health of the lake,” he said. “We had to find a blending point which let water over the top, but enough cold water off the bottom to bring (the temperature) down,” he said.

Let’s go fishing: A look at what you need to know to fish for trout this spring across Pennsylvania

He started measuring the temperature of the water at several locations, including in Lost Run before it reached the lake, in the lake itself and then several spots down stream. 

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During the heat of the summer, he said water coming into the lake would be below 70 degrees. The water flowing over the spillway would oftentimes be 80 degrees or more and the water below where the spillway and bottom pipe blend in Lost Run would be back down to below 70.

“We are able to get to the same temperature below the dam as it was coming into the lake,” he said “We were actually able to get to that same point, as though the dam wasn’t there,” he said.

Susan Fletcher, president of the Friends of Camp Soles board of directors, has been observing MacDonald’s efforts.

“It’s not only that the fish are more vigorous and survive better, but there’s something about what they feed on that has improved,” she said.

Fletcher said MacDonald is a friend of the camp and they appreciate his efforts.

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“He’s clearly interested in the environment and when you have a summer camp, that’s what you want the kids to do, is to appreciate the natural world,” she said.

She said the dam was named Lake Tris for a descendant of the camp’s founders. She said there are online references to the waterway that have it also spelled as Lake Triss. “It’s hard to get that changed,” she said.

“One of the most popular things in recent years has been fishing,” she said about the campers enjoying the lake to catch catfish, bass and a variety of panfish.

“We love that John has taken an interest and is keeping (the lake) healthy. Because one of my favorite sayings is, when you tug at one thing in nature, you find it attached to the rest of the world.”

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This year, MacDonald is continuing his research with recording temperatures and studying the ratio of water coming over the spillway with the water being released from the bottom of the lake. He also wants to measure water volume, too.

More: Pennsylvania fishing license fees to remain same in 2025 because of increased sales

“Once I establish the ratio of what is needed, other lakes with a spillway and bottom pipe, can experiment with how far to open the pipe each year,” he said about making it a simple process for people to mimic or at least try. 

He said he’s not changing the amount of water being released, but blending the two sources of water discharge.

With the help of Camp Soles, he said the goal is to, “Someday find a very simple solution for these types of lakes to bring the water temperature down below 70, and protect our cold water heritage.”

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MacDonald isn’t officially trained to study waterways, but said he’s an avid sportsman who wants to protect the fishery. He’s hoping his research can be used by state agencies and private lake owners “for the betterment of our cold-water heritage.” 

State agency response

Lakes in Pennsylvania are managed by the Pennsylvania Department of Environmental Protection.

Lauren Camarda, regional communications manager for the DEP, said, “A cold water, low-level discharge is not always required or beneficial, but many dams have been retrofitted with cold water releases over the years. While there could be benefits from discharging from the bottom, it could have the unintended consequence of releasing anoxic water (water with low levels of dissolved oxygen that fish need), sediment that can pollute the water downstream, or entrapping or impinging fish in the lake.”

If the lake has to retrofit its pipes on the bottom of a lake it can be cost prohibitive based on what is needed.

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“Simply ‘cracking open’ the low-level valve is generally not a viable solution as high velocity flow could be detrimental to the valve and debris may lodge in the valve preventing it from being able to shut,” she said through an email. “If a dam owner wants to change normal operation of the pool level, a permit is required from DEP. DEP’s division of dam safety consults with the Pennsylvania Fish and Boat Commission regarding situations where a cold-water release requirement may be warranted. Ultimately, this idea may have merit in certain situations but must be approached on a case specific-basis and in concert with DEP review to ensure that it is in fact beneficial for aquatic life downstream. DEP encourages dam owners that are interested in this to contact DEP to determine if it is something that could work for them.”

Mike Parker, communications director for the Fish and Boat Commission agreed that colder water may help trout survive the summer months, but referred questions about lowering lakes to achieve that to the DEP.

 Brian Whipkey is the outdoors columnist for USA TODAY Network sites in Pennsylvania. Contact him at bwhipkey@gannett.com and sign up for our weekly Go Outdoors PA newsletter email on this website’s homepage under your login name. Follow him on Facebook @whipkeyoutdoors, and Instagram at whipkeyoutdoors.





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Pennsylvania

Shirley J. Griffith, Sharon, PA

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Shirley J. Griffith, Sharon, PA


SHARON, Pa. (MyValleyTributes) – Shirley J. Griffith, age 91, of Sharon, Pennsylvania, passed away on Sunday, April 12, 2025, in John XXIII Home, in Hermitage, Pennsylvania, with her loving family by her side.

Born October 4, 1934, in Sharon, Pennsylvania, she was the daughter of the late Donald and Ernestine (Brunson) Eckenrode.

She married Donald M. Griffith, on May 12, 1956, and he preceded her in death on September 28, 2019.

Shirley graduated from Sharon High School in 1952 and worked in the main office of Golden Dawn, in Sharon, as a bookkeeper, in the accounts payable department. 

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She was a former member of St. Joseph’s Church in Sharon, Pennsylvania and liked to read, knit and do cross stitch.

Surviving is her daughter, Stacy Bika, of Hermitage, Pennsylvania; her sons, Douglas M. (Barbara) Griffith of Kennett Square, Pennsylvania and David M. (Joy) Griffith of Hurdle Mills, North Carolina; a sister, Peggy Fuchs, of Punta Gorda, Florida; five grandchildren; and nine great-grandchildren.

She was preceded in death by a son, Daniel “Bucky” Griffith; and a sister, Donna Wiedmann.

In keeping with her wishes, there will be no visitation or services.

Arrangements are being are being handled by the Harold W. Stevenson Funeral Home, 264 E. State Street, Sharon, PA, 16146.

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On-line condolences may be offered by visiting stevensonfuneralhome.net.

To send a flower arrangement in memory of Shirley J. Griffith, please click here to visit our sympathy store.

To plant Memorial Trees in memory of Shirley J. Griffith, please click here to visit our sympathy store.

A television tribute will air Sunday, April 19, at the following approximate times: 8:58 a.m. on WKBN and 7:58 p.m. on FOX. Video will be posted here the day of airing.

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Rabb tops fundraising in Pennsylvania primary, but Stanford leads in cash

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Rabb tops fundraising in Pennsylvania primary, but Stanford leads in cash


What questions do you have about the 2026 elections? What major issues do you want candidates to address? Let us know.

Pennsylvania state Rep. Chris Rabb, D-Philadelphia, surged to the front of the Democratic primary fundraising race in the latest quarter, nearly doubling his closest rivals, despite a recent campaign finance scandal that drained his coffers.

Rabb, who identifies as the progressive candidate in the race, brought in nearly $385,000 between Jan. 1 and March 31.

That number was around twice as much as both of his primary competitors — state Sen. Sharif Street, who previously led the field in fundraising, with $199,000, and Dr. Ala Stanford, with $211,000, in the same period of time.

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While Rabb led in new money raised, Stanford entered April with the strongest overall financial position, partly thanks to a $250,000 loan she gave her campaign last year. Her campaign reported about $450,000 cash on hand, compared to Rabb’s $236,000. Street ended the quarter with $263,000.

Rabb’s total was especially notable because it came after his team disclosed that his former treasurer allegedly made more than $160,000 in unauthorized withdrawals from the campaign account last year.



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As Tech Groups Predict Huge Pennsylvania Data-Center Growth, Critics Say Some Bills Would Reduce Local Control – Inside Climate News

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As Tech Groups Predict Huge Pennsylvania Data-Center Growth, Critics Say Some Bills Would Reduce Local Control – Inside Climate News


As local tech groups predict that Pennsylvania will outpace its region for data-center growth in the next 10 years, another organization warned that some legislative proposals in play this session would weaken municipalities’ ability to say no. 

“Local authority remains one of the few meaningful tools communities have to push back against large-scale data center and AI development,” Data & Society, a nonprofit that studies the social implications of data, automation and AI, said in a new policy brief. “State government should support, not override, local decision-making, especially with infrastructural decisions as consequential as this.” 

It named several bills in the Pennsylvania legislature that it said would reduce local authority over siting decisions for major industrial facilities, centralizing that power within the state.

The bills include HB 502, a Democrat-led measure that’s part of Gov. Josh Shapiro’s “Lightning Plan” to speed the permitting of energy projects. The bill would set up a statewide board to make decisions on whether to approve large-scale energy projects, which data centers will need. 

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Among the other bills the group flagged are two Republican-led measures: SB 939, which would create a standardized “sandbox” to write statewide regulation for the industry, and SB 991, which would provide faster permits for data-center developers who commit to meet or exceed federal environmental standards.  

Pennsylvania communities are “vastly different,” Data & Society said in a statement. “This group of bills erases that diversity and assumes that the same solution will work for all.”

The bills remain in committee.

Meanwhile, an industry report released in late March by the Pittsburgh Technology Council and the Philadelphia Alliance for Capital and Technologies projected Pennsylvania will see data-center capacity growth of more than 4,000 percent in the next decade. The report, written by Mangum Economics, says that growth will outpace any other place on the regional electric grid PJM Interconnection, which serves 12 other states and Washington, D.C.

Neither Mangum Economics nor the Data Center Coalition, an industry group, responded to requests for comment.

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The report said Pennsylvania is especially attractive to data-center developers because it is courting data centers and has major attractions for the electricity-hungry industry. The state is the biggest exporter of electricity in the nation’s largest electric grid. And it’s the second-largest producer of natural gas, a major way that developers plan to power the new hyperscale complexes.

The state also has manufacturing that can supply the new infrastructure needed by the AI industry, the report said.

“While some states excel in hosting data centers, others in energy production, and others in advanced manufacturing, Pennsylvania is on track to uniquely possess all three advantages at scale,” said the report.

It predicted that by 2036, the data center industry will support 19,400 jobs in manufacturing, energy and other sectors. The capacity of new data centers—the maximum amount of electricity they need—is expected to exceed 7,196 megawatts by 2036, up from 186 megawatts now. 

More than 50 data centers are currently planned or under construction in Pennsylvania, according to Data Center Proposal Tracker, a website that monitors planned or actual data center construction throughout the U.S. 

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Environmentalists say the expected surge in data center construction will worsen climate change by stimulating the production of natural gas. There’s also growing bipartisan concern about the impact on local water supplies and residential electric bills, which have already risen in anticipation of big new data center demand.

Some communities are pushing back. In February, for instance, commissioners of Montour County in central Pennsylvania rejected a plan by Talen Energy and Amazon to rezone land to build a data center.

Quentin Good, an analyst at Frontier Group, which does research for environmental groups including PennEnvironment, said the industry hasn’t yet provided evidence that there will be enough demand to justify all the data centers in the works. There is a danger of over-investing, especially in additional energy infrastructure, he said.

“That’s going to cost a lot of money,” he said. “But we might not even need it all.”

Good said the prediction of 4,000 percent growth in Pennsylvania’s data center capacity ignores state or local regulation that could have a significant effect. “The report doesn’t consider any of those competing factors,” he said.

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In the legislature, state Sen. Katie Muth said she will introduce a bill that would place a three-year moratorium on data center development to give local governments time to evaluate its impacts on their communities.

Muth, a Democrat from the Philadelphia suburbs, said she didn’t expect any co-sponsors before the bill was published but now has four, including two Republicans. She said the unexpected support is probably because some members are hearing complaints from their constituents about the impact on their electric bills.

“People are rightfully upset about that,” she said. “I think that might be the reason why this has moved—public outrage.”

About This Story

Perhaps you noticed: This story, like all the news we publish, is free to read. That’s because Inside Climate News is a 501c3 nonprofit organization. We do not charge a subscription fee, lock our news behind a paywall, or clutter our website with ads. We make our news on climate and the environment freely available to you and anyone who wants it.

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