AquaDiary: Water Mysteries, Science & News

Ally Berry

AquaDiary is a science podcast about the hidden stories, strange mysteries, and real-world risks lurking in our water. Hosted by environmental scientist Ally Berry, each episode breaks down fascinating water-related events — from toxic algae blooms and disappearing lakes to environmental headlines, hydrology, contamination, and bizarre aquatic phenomena — in a way that’s gripping, understandable, and actually relevant. If you like science, environmental mysteries, water disasters, lake science, or the kind of stories that make you look at the world differently, AquaDiary is for you.

Episodes

  1. 2D AGO

    The Dark Secrets of NY's Best Tasting Water: Rochester, NY

    Rochester was voted the best-tasting municipal water in New York State. Then they found a body in the reservoir. In March 2024, a maintenance worker discovered a man's body in Rochester's Highland Park Reservoir. It had been there for 24 days while water continued flowing to tens of thousands of taps. The water tested safe, but the story of how this was possible opens up something much larger about a city drinking from two of the most protected lakes in the country while simultaneously managing 15,000 lead pipes, two reservoirs out of federal compliance for nearly 20 years, and a chemical legacy in the watershed that took state environmental archives and a stonewalled FOIL request to piece together. In this episode, environmental scientist Ally covers: 🔬 Where Rochester's water actually comes from — two glacier-carved Finger Lakes supplying 37 million gallons a day since 1876, with completely undeveloped shorelines and 6,800 acres of protected state forest. ☣️ The PCB scandal buried in the Canadice watershed. A private landowner draining transformer fluid into a tributary feeding your drinking water reservoir, and the fish test results still sitting in "draft form" two years after collection. 🚰 15,000 lead service lines still in the ground, what the city is doing about it, and how to get your water tested for free. 💀 The full story of Abdullahi Muya, the 29-year-old who drowned in Highland Park Reservoir in February 2024 and wasn't found for 24 days. and the federal compliance rule that's been deferred since 2006 that connects to the story. 🧫 The bloom science nobody in Rochester is talking about. Internal phosphorus loading documented in Hemlock and Canadice specifically, legacy septic systems still releasing nutrients 80 years after demolition, and the seiche dynamics that can trigger algal blooms from inside a protected lake with zero external input. 🧪 A University of Rochester study that found microplastic concentrations jumping from 10 particles per milliliter at the source to over 1,500 by the time it reached distribution. The source was clean, the pipes weren't. 💧 City water vs. suburb water, PFAS, disinfection byproducts, the Skaneateles comparison, the fracking fight nobody remembers, and what you can actually do The water is safe. It's also complicated. This episode explains why. Full citations at the AquaDiary Patreon (but comment if you want something): https://www.patreon.com/c/TheAquaDiaryPodcast Free lead testing: WaterTest@CityofRochester.gov

    50 min
  2. APR 24

    The Lead Pipe Problem Is Worse Than We Thought

    Lead pipes and lead poisonings aren't problems we've solved. They're under streets across the country right now, and new evidence suggests the problem is significantly larger than official data ever indicated. In this episode, environmental scientist Ally breaks down the full story of lead in American drinking water: the aging infrastructure nobody wants to pay to fix, the chemistry that keeps most of us safe and exactly what destroys it, and the cities across New York and the northeast with lead levels that should be making national headlines. What we cover: How East Coast water infrastructure came to beThe science inside lead pipes that most reporting gets wrongWhat really happened in Flint — and the one detail nobody explainsNew York cities with lead levels higher than Flint at its worstA new study suggesting utilities manipulated lead reporting data5. What lead exposure does to children and adultsFive things you can do to protect yourself starting todayThere is no safe level of lead exposure. But there are things you can do, and understanding the science is the first one. 🔗 EPA certified filter guide: https://www.epa.gov/water-research/consumer-tool-identifying-point-use-and-pitcher-filters-certified-reduce-lead🔗 NRDC lead pipe interactive map: https://www.nrdc.org/resources/lead-pipes-are-widespread-and-used-every-state🔗 NY lead service line map (NYLCVEF): https://nylcvef.org/lead-service-lines-in-new-york-state-interactive-map/🔗 Syracuse lead service line map: https://experience.arcgis.com/experience/f6f39da4d69b436584b174de9fddf2d8Support the show on Patreon: https://www.patreon.com/c/TheAquaDiaryPodcast

    34 min
  3. Exploding Lakes: The Lake Nyos Disaster

    APR 10

    Exploding Lakes: The Lake Nyos Disaster

    On the night of August 21, 1986, the residents of Cameroon's Nyos valley went to sleep and never woke up. Nearly 1,700 people and thousands of livestock were found dead by morning. No signs of struggle, no visible cause. Just silence and 4 very confused survivors. The lake was the murderer. In this episode, we cover the full story of Lake Nyos: the night of the disaster, the survivors who described a strange smell and sudden darkness, the scientists who pieced together what happened, and the remarkable engineering now keeping it from happening again. We also break down the science of limnic eruptions: how volcanic CO₂ silently accumulates in deep water under immense pressure, what causes a lake to suddenly "explode," and which lakes around the world (Lake Kivu) are still primed to do the same thing today. This is a story about geology, chemistry, tragedy, survival, and what happens when nature operates by rules most of us never knew existed. Resources: Kling, G.W. et al. (1987). The1986 Lake Nyos Gas Disaster in Cameroon, West Africa. Science, 236(4798). — Thefoundational post-disaster scientific paper.Evans, W.C. et al. (2005).Degassing Lakes Nyos and Monoun: Defusing Certain Disaster. Proceedings of theNational Academy of Sciences. https://www.pnas.org/doi/10.1073/pnas.0502274102Halbwachs, M. et al. (2020).Final Step of the 32-Year Lake Nyos Degassing Adventure. Journal of AfricanEarth Sciences.https://www.sciencedirect.com/science/article/abs/pii/S1464343X19302286Anzidei, M. et al. (2023).Evidence of Lake Nyos-Type Behavior in the Geological Record: A Review.ScienceDirect.https://www.sciencedirect.com/science/article/pii/S0012825223002921Britannica: Lake Nyos Disaster.https://www.britannica.com/event/Lake-Nyos-disasterAtlas Obscura: The InvisibleThreat Beneath Cameroon's Deadly Lake Nyos.https://www.atlasobscura.com/articles/lake-nyos-1986Mental Floss: Killer Lakes — WhyLimnic Eruptions May Be the World's Rarest Natural Disasters.https://www.mentalfloss.com/science/geology/limnic-eruptions-volcanic-lakesHowStuffWorks: How Did Lake NyosSuddenly Kill 1,700 People?https://science.howstuffworks.com/environmental/earth/geophysics/lake-nyos.htmFairPlanet: Cameroon: Lake NyosDisaster Survivors Afflicted by Civil War.https://www.fairplanet.org/story/glimmer-of-hope-for-lake-nyos-disaster-survivors/VOA News: Cameroon Lake NyosDisaster Survivors Feel Abandoned.https://www.voanews.com/a/survivors-1986-lake-nyos-disaster-cameroon/3474673.htmlUniversity of Michigan —CO2-Driven Lake Eruptions resource.https://websites.umich.edu/~youxue/lakeerupt.htm Support the show on Patreon, and see the scripts and notes before they're released! The AquaDiary Podcast | Patreon

    22 min
  4. Algae Toxins: Drinking Water, Dogs & Health Risks

    APR 3

    Algae Toxins: Drinking Water, Dogs & Health Risks

    What are toxic algae, and how dangerous are they really? In this episode of AquaDiary, Ally breaks down the health risks of harmful algal blooms (HABs), including cyanotoxins like microcystin, how exposure can affect people and pets, why dogs can die within hours, what the health advisory limits are federally and by state, what toxic blooms mean for lakes and drinking water systems, how to find out if your state is monitoring for cyanotoxins, how to see if you're being exposed to toxins in your drinking water, and why public awareness still lags behind the science. She also explores emerging research into possible long-term neurological risks, including whether certain algae toxins may one day be linked to diseases like Alzheimer’s. Topics covered: toxic algae, mattoon water crisis, harmful algal blooms (HABs), cyanobacteria, cyanotoxins, microcystin, anatoxin-a, BMAA, algae toxins, dog deaths from algae blooms, toxic lake water, harmful algal bloom health risks, cyanotoxins in drinking water, algae blooms and pets, lake water safety, tap water contamination, public health, water treatment, health advisories, emerging research, and environmental science. References: Caller, T.A., et al. (2009). A cluster of amyotrophic lateral sclerosis in New Hampshire: A possible role for toxic cyanobacteria blooms. Amyotrophic Lateral Sclerosis, 10(Suppl. 2), 101–108. Cox, P.A., et al. (2016). Chronic exposure to BMAA may trigger Alzheimer's-like pathology in primates. Proceedings of the Royal Society B. Durden, W.N., et al. (2025). Alzheimer's disease signatures in the brain transcriptome of estuarine dolphins. Communications Biology, 8(1), 1400. Environmental Working Group. Tap water database — does your state monitor microcystin https://www.ewg.org/tapwater Garamszegi, S.P., et al. (2023). Detection of BMAA in postmortem olfactory bulbs of Alzheimer's disease patients. Toxicology Reports, 10, 392–400. IPM Newsroom. (2025, September 5). What to know about algal blooms after Mattoon's water crisis. NPR Illinois. (2025, September 15). Toxic bacteria shut down Mattoon's water supply. U.S. Environmental Protection Agency. (2015). Health advisory for microcystins (0.3 µg/L children; 1.6 µg/L adults). https://www.epa.gov World Health Organization. Guidelines for drinking-water quality. [Microcystin-LR guideline: 1.0 µg/L]Links: EWG Tap Water Database (microcystin by state): https://www.ewg.org/tapwater NY HABs Tracker (harmful algal bloom advisories): https://www.dec.ny.gov/chemical/77118.html Find your Annual Drinking Water Report: Search [your town name] + 'annual drinking water report' or https://www.epa.gov/ccr Water filter — tested for microcystin removal (Berkey): https://amzn.to/4t25nPYMicrocystin regulations by state: https://static.ewg.org/reports/2019/microcystin/img/EWG_Microcystins-StateReg_C02.pdf

    32 min
  5. What Causes Algal Blooms?

    APR 3

    What Causes Algal Blooms?

    In 2014, a harmful algae bloom shut off drinking water for nearly half a million people in Toledo, Ohio. The city spent 65 million dollars responding. They've invested half a billion dollars in upgrades since. And every summer, the blooms come back. Harmful algal blooms are getting worse. And the reason why is more complicated than most people realize, and more alarming than most officials or lake managers are admitting. In this episode, environmental scientist and host Ally breaks down the full science of toxic algae blooms to help you think like a scientist, including the ancient biology behind them, how phosphorus fuels toxic growth, how lake stratification and turnover distribute nutrients through the water column, and why new peer reviewed research suggests that even lakes with reduced pollution are still experiencing blooms. This is the science behind the headlines, explained. References: Nürnberg GK. (2025). Importance of considering internal phosphorus loading during climate change. Lake and Reservoir Management, 41:3, 165–179.Jane SF et al. (2023). Longer duration of seasonal stratification contributes to widespread increases in lake hypoxia and anoxia. Global Change Biology, 29(4), 1009–1023.Harrison JW et al. (2025). Hypolimnetic photosynthesis precedes a Microcystis bloom in a temperate, oligo-mesotrophic reservoir. Lake and Reservoir Management, 41:194–209.Meyers K et al. (2025). National forecasting of cyanobacterial harmful algal bloom events: a 3-year model evaluation. Lake and Reservoir Management.Chaffin JD et al. (2023). Microcystin congeners in Lake Erie follow the seasonal pattern of nitrogen availability. Harmful Algae, 127, 102466. Taranu ZE et al. (2014). Nitrogen forms influence microcystin concentration and composition via changes in cyanobacterial community structure. PLOS ONE.NOAA/NCCOS ongoing research: Evaluating the Effects of Nitrogen Form and Concentration on Toxin Phenotypes of Microcystis. coastalscience.noaa.govCDC MMWR report: McCarty CL et al. (2016). Community Needs Assessment After Microcystin Toxin Contamination of a Municipal Water Supply — Lucas County, Ohio. MMWR, 65(35):925–929.Schopf JW. The Fossil Record of Cyanobacteria. In: Whitton BA, editor. Ecology of Cyanobacteria II. Springer; 2012. — 3.5 billion year stromatolite evidenceGueneli N et al. (2024). Oldest thylakoids in fossil cells directly evidence oxygenic photosynthesis. Nature. — 2.1 billion year undisputed confirmed fossilCNN. (August 3, 2014). 400,000 in Toledo, Ohio, water scare await test results. CNN.comCircle of Blue. (2015). The Toledo Water Crisis, One Year Later. circleofblue.orgThe Statehouse News Bureau. (August 2, 2024). A decade ago, Toledo lost access to its water. statenews.orgUniversity of Toledo. (July 15, 2024). 10 Years After Water Crisis, UToledo Researchers Remain Committed to Protecting Region's Drinking Water. Chaffin JD, Westrick JA, Reitz LA, Bridgeman TB. (2023). Microcystin congeners in Lake Erie follow the seasonal pattern of nitrogen availability. Harmful Algae, 127, 102466. DOI: 10.1016/j.hal.2023.102466. — nitrogen availability influences microcystin congener composition and therefore bloom toxicity; more toxic forms dominate late season as nitrogen depletesLisboa, MS, RL Schneider, LG Rudstam, MT Walter. 2025. Groundwater phosphorus contributions comparable to tributaries in a large, mesotrophic, polymictic lake. Science of the Total Environment. 1008:180978. doi.org/10.1016/j.scitotenv.2025.180978

    35 min
  6. Toxic Water in the Finger Lakes: The Owasco Lake Mystery

    APR 2

    Toxic Water in the Finger Lakes: The Owasco Lake Mystery

    Owasco Lake supplies drinking water to 45,000 people in central New York. In 2016, it made history, for the wrong reason. Cyanobacterial toxins were detected in the finished drinking water of a New York State public water system for the first time ever. Since then, the blooms have gotten worse, the lawsuits have piled up, and a number that gets cited constantly in the press may not be telling the whole story. In this episode, environmental scientist and Owasco local, Ally Berry, goes inside the science, the data, and the regulatory fight that has turned one Finger Lake into a test case for water policy across New York State. What's really driving the algae blooms? Where is the phosphorus actually coming from? And why is the science more complicated (and more interesting) than the headlines suggest? References: Anderson, H.S., et al. (2021). Accelerated Sediment Phosphorus Release in Lake ErieDuring Seasonal Anoxia. Limnology and Oceanography. https://coastalscience.noaa.gov/news/lake-erie-eutrophication-exacerbated-by-release-of-sediment-phosphorus-during-anoxia/Cayuga County Health Department (October 8, 2024). Low Levels of Algal Toxins Detectedin Auburn and Owasco Drinking Water. Reported via CNY Central. https://cnycentral.com/news/local/toxins-detected-in-auburn-owasco-drinking-water-still-safe-to-useCity of Auburn, NY (January 5, 2023). Public Notice: Total Trihalomethanes MCL Violation. https://www.auburnny.gov/home/news/public-notice-city-auburn-public-water-supply-users-updated-april-14-2023City of Auburn, NY. Harmful Algal Blooms Information.https://www.auburnny.gov/water-billing-service/pages/harmful-algal-blooms-informationEarthjustice Press Release (August 2025). Court Orders New York State to Act on Drinking Water Crisis.https://earthjustice.org/press/2025/court-orders-new-york-state-to-act-on-drinking-water-crisis-in-cayuga-county Earthjustice Press Release (May 2025). Court Determines NYS-DOH Cannot Shirk Responsibility.https://earthjustice.org/press/2025/court-determines-nys-doh-cannot-shirk-responsibility-to-protect-drinking-water-supplies-from-agricultural-contaminationFinger Lakes Regional Watershed Alliance, as reported in Inside Climate News (October2024). 2024 Harmful Algal Bloom Report Data. https://insideclimatenews.org/news/23102024/new-york-finger-lakes-toxic-bloom-record/Inside Climate News (October 2024). Toxic Blooms in New York's Finger Lakes Set Recordin 2024. https://insideclimatenews.org/news/23102024/new-york-finger-lakes-toxic-bloom-record/New York State DEC. 2017–2018 Finger Lakes Water Quality Report (CSLAP). https://extapps.dec.ny.gov/docs/water_pdf/2018flwqreport.pdfOrihel, D.M., et al. (2017). Internal Phosphorus Loading in Canadian Fresh Waters.Canadian Journal of Fisheries and Aquatic Sciences. https://cdnsciencepub.com/doi/10.1139/cjfas-2016-0500Owasco Lake Watershed Nine-Element Plan for Phosphorus Reduction. https://waterfrontonline.blog/wp-content/uploads/2022/10/owasco9elementplanphosphorous.pdfOWLA. Judge Rules DOH Has Authority to Adopt Rules and Regulations. https://www.owla.org/news/judge-rules-that-the-state-department-of-health-has-the-authority-to-adopt-rules-and-regulations-to-protect-owasco-lakeSteinman, A.D., et al. (2015). Laboratory-Determined Phosphorus Flux from Lake Sediments.Journal of Visualized Experiments. https://pmc.ncbi.nlm.nih.gov/articles/PMC4143148/Wallington, K., et al. (2023). Updating SWAT+ to Clarify Understanding of In-StreamPhosphorus. Water Resources Research. https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2022WR033283WaterFront / Peter Mantius (March 2023). As Cyanotoxins Soar in Owasco Lake. https://waterfrontonline.blog/2023/03/31/as-cyanotoxins-soar-in-owasco-lake-threatening-tap-water-cayuga-county-ends-support-for-water-monitoring/Support the show on Patreon! The AquaDiary Podcast | Patreon Sign up for CSLAP!What is CSLAP? – NYSFOLA

    1h 5m
4.6
out of 5
9 Ratings

About

AquaDiary is a science podcast about the hidden stories, strange mysteries, and real-world risks lurking in our water. Hosted by environmental scientist Ally Berry, each episode breaks down fascinating water-related events — from toxic algae blooms and disappearing lakes to environmental headlines, hydrology, contamination, and bizarre aquatic phenomena — in a way that’s gripping, understandable, and actually relevant. If you like science, environmental mysteries, water disasters, lake science, or the kind of stories that make you look at the world differently, AquaDiary is for you.

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