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<loc>https://www.walpa.org/walpa-archive/flowering-rush-threatens-washington-waters</loc>
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<loc>https://www.walpa.org/walpa-archive/nalms-symposium-visits-spokane</loc>
<lastmod>2026-11-03</lastmod>
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<loc>https://www.walpa.org/walpa-archive/observations-on-the-appearance-of-brine-flies-at-willow-creek-reservoir-a-freshwater-lake</loc>
<lastmod>2026-11-03</lastmod>
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<loc>https://www.walpa.org/walpa-archive/where-are-they-now-%E2%80%A8catching-up-with-past-walpa-scholarship-winners</loc>
<lastmod>2026-11-03</lastmod>
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<url>
<loc>https://www.walpa.org/walpa-archive/2012-scholarship-winners-announced</loc>
<lastmod>2026-11-03</lastmod>
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<loc>https://www.walpa.org/walpa-archive/bylaw-changes-approved-at-october-conference</loc>
<lastmod>2026-11-03</lastmod>
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<loc>https://www.walpa.org/walpa-archive/help-us-welcome-the-new-walpa-board-members</loc>
<lastmod>2026-11-03</lastmod>
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<loc>https://www.walpa.org/walpa-archive/notes-from-the-2012-walpa-conference-or-how-to-have-a-fun-time-and-call-it-work</loc>
<lastmod>2026-11-03</lastmod>
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<loc>https://www.walpa.org/walpa-archive/turning-back-the-clock-%E2%80%93-a-plan-to-restore-lake-ketchum</loc>
<lastmod>2026-11-03</lastmod>
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<loc>https://www.walpa.org/walpa-archive/an-analysis-and-summary-of-disinfection-methods-to-prevent-the-spread-of-aquatic-invasive-species-in-washington</loc>
<lastmod>2026-11-03</lastmod>
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<loc>https://www.walpa.org/walpa-archive/joint-lakes-conference-celebrates-collaboration</loc>
<lastmod>2026-11-03</lastmod>
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<loc>https://www.walpa.org/walpa-archive/the-liberty-lake-sewer-and-water-district-how-the-district-manages-stormwater-to-protect-a-special-resource</loc>
<lastmod>2026-11-03</lastmod>
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<loc>https://www.walpa.org/walpa-archive/lake-chelan-provides-the-perfect-setting-for-the-27th-walpa-conference</loc>
<lastmod>2026-11-03</lastmod>
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<loc>https://www.walpa.org/walpa-archive/rock-snot-in-the-intermountain-northwest-an-invasive-or-a-native-nuisance</loc>
<lastmod>2026-11-03</lastmod>
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<loc>https://www.walpa.org/walpa-archive/what-is-a-bryozoan</loc>
<lastmod>2026-11-03</lastmod>
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<loc>https://www.walpa.org/walpa-archive/how-has-lake-sammamish-water-quality-responded-to-land-use-change</loc>
<lastmod>2026-11-03</lastmod>
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<loc>https://www.walpa.org/walpa-archive/reciprocal-relationships-between-limnologists-and-landowners-a-benefit-to-lakes</loc>
<lastmod>2026-11-03</lastmod>
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<loc>https://www.walpa.org/walpa-archive/students-are-big-winners-thanks-to-generous-auction-donors-in-2015</loc>
<lastmod>2026-11-03</lastmod>
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<loc>https://www.walpa.org/walpa-archive/walpa%E2%80%99s-annual-conference-sets-the-stage-for-a-successful-future</loc>
<lastmod>2026-11-03</lastmod>
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<loc>https://www.walpa.org/walpa-archive/when-asia%E2%80%99s-pollution-arrives-in-washington%E2%80%99s-alpine-lakes</loc>
<lastmod>2026-11-03</lastmod>
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<loc>https://www.walpa.org/walpa-archive/lake-folks-converge-on-bellingham-for-walpa%E2%80%99s-29th-annual-conference</loc>
<lastmod>2026-11-03</lastmod>
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<loc>https://www.walpa.org/walpa-archive/sexual-eruption-sex-specific-responses-of-rainbow-trout-to-habitat-shaped-by-volcanic-disturbance</loc>
<lastmod>2026-11-03</lastmod>
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<url>
<loc>https://www.walpa.org/walpa-archive/the-language-of-aquatic-macroinvertebrates</loc>
<lastmod>2026-11-03</lastmod>
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<url>
<loc>https://www.walpa.org/walpa-archive/water-level-fluctuations-in-lakes-of-western-washington</loc>
<lastmod>2026-11-03</lastmod>
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<url>
<loc>https://www.walpa.org/walpa-archive/fishing-for-your-health-in-washington</loc>
<lastmod>2026-11-03</lastmod>
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<loc>https://www.walpa.org/walpa-archive/oregon-and-washington-join-forces-again</loc>
<lastmod>2026-11-03</lastmod>
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<url>
<loc>https://www.walpa.org/walpa-archive/the-impact-of-beaver-dams-on-aquatic-macroinvertebrate-communities</loc>
<lastmod>2026-11-03</lastmod>
</url>
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<loc>https://www.walpa.org/walpa-archive/walpa-celebrates-three-decades-of-annual-gatherings-in-spokane</loc>
<lastmod>2026-11-03</lastmod>
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<url>
<loc>https://www.walpa.org/walpa-archive/washington-lake-advocates-propose-community-allied-lake-monitoring-a-collaborative-program-to-monitor-our-lakes</loc>
<lastmod>2026-11-03</lastmod>
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<loc>https://www.walpa.org/walpa-archive/contrasting-causes-of-hazardous-algal-blooms-in-two-south-puget-sound-wa-lakes</loc>
<lastmod>2026-11-03</lastmod>
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<url>
<loc>https://www.walpa.org/walpa-archive/having-a-blast-at-mount-st.-helens-the-adventure-of-studying-log-mat-biofilm-in-spirit-lake</loc>
<lastmod>2026-11-03</lastmod>
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<loc>https://www.walpa.org/walpa-archive/lake-osoyoos-in-north-central-washington-forms-a-lake-management-district</loc>
<lastmod>2026-11-03</lastmod>
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<loc>https://www.walpa.org/walpa-archive/the-state-of-water-quality-in-moses-lake</loc>
<lastmod>2026-11-03</lastmod>
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<loc>https://www.walpa.org/walpa-archive/washington-and-oregon-lake-lovers-join-forces-in-portland-for-a-joint-olawalpa-conference-pacific-northwest-lakes-in-a-changing-world</loc>
<lastmod>2026-11-03</lastmod>
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<url>
<loc>https://www.walpa.org/walpa-archive/a-250-year-history-of-cyanobacteria-in-anderson-lake-jefferson-county</loc>
<lastmod>2026-11-03</lastmod>
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<url>
<loc>https://www.walpa.org/walpa-archive/observations-of-drawdown-treatments</loc>
<lastmod>2026-11-03</lastmod>
</url>
<url>
<loc>https://www.walpa.org/walpa-archive/seasonal-mixing-patterns-in-shallow-lake-controls-vertical-distribution-of-arsenic</loc>
<lastmod>2026-11-03</lastmod>
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<url>
<loc>https://www.walpa.org/walpa-archive/using-floating-treatment-wetlands-to-reduce-contaminants-in-urban-stormwater-to-ameliorate-impacts-to-coho-salmon</loc>
<lastmod>2026-11-03</lastmod>
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<url>
<loc>https://www.walpa.org/walpa-archive/walpa-2019-conference-at-chelan-a-halloween-success</loc>
<lastmod>2026-11-03</lastmod>
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<url>
<loc>https://www.walpa.org/walpa-archive/aquatechnex-works-to-curb-harmful-algae-blooms-habs-in-western-lakes</loc>
<lastmod>2026-11-03</lastmod>
</url>
<url>
<loc>https://www.walpa.org/walpa-archive/cd3-technology-empowers-boat-owners-to-help-limit-the-spread-of-invasives</loc>
<lastmod>2026-11-03</lastmod>
</url>
<url>
<loc>https://www.walpa.org/walpa-archive/small-bubbles-big-impact-nanobubbles-for-effective-deep-water-oxygenation-and-algae-control</loc>
<lastmod>2026-11-03</lastmod>
</url>
<url>
<loc>https://www.walpa.org/walpa-archive/walpa-2021-action-plan</loc>
<lastmod>2026-11-03</lastmod>
</url>
<url>
<loc>https://www.walpa.org/walpa-archive/walpa-annual-conference-a-virtual-success</loc>
<lastmod>2026-11-03</lastmod>
</url>
<url>
<loc>https://www.walpa.org/walpa-archive/announcements-from-the-board</loc>
<lastmod>2026-11-03</lastmod>
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<url>
<loc>https://www.walpa.org/walpa-archive/ask-dr-waterline-why-was-this-pond-pink</loc>
<lastmod>2026-11-03</lastmod>
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<url>
<loc>https://www.walpa.org/walpa-archive/it-took-a-village-to-create-another-great-walpa-conference</loc>
<lastmod>2026-11-03</lastmod>
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<url>
<loc>https://www.walpa.org/walpa-archive/news-from-the-walpa-board</loc>
<lastmod>2026-11-03</lastmod>
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<url>
<loc>https://www.walpa.org/walpa-archive/research-shows-potential-for-bioretention-while-protecting-water-quality</loc>
<lastmod>2026-11-03</lastmod>
</url>
<url>
<loc>https://www.walpa.org/walpa-archive/stop-starry-stonewort-campaign-enlists-public-to-halt-spread-of-aggressive-invasive</loc>
<lastmod>2026-11-03</lastmod>
</url>
<url>
<loc>https://www.walpa.org/walpa-archive/county-wide-prevention-infrastructure-encourages-boat-owners-to-help-control-the-spread-of-invasives</loc>
<lastmod>2026-11-03</lastmod>
</url>
<url>
<loc>https://www.walpa.org/walpa-archive/impact-of-dry-deposition-on-nutrient-inputs-to-spirit-lake-mount-st.-helens-national-volcanic-monument</loc>
<lastmod>2026-11-03</lastmod>
</url>
<url>
<loc>https://www.walpa.org/walpa-archive/quantifying-the-impacts-of-new-zealand-mudsnail-on-the-ecology-of-spirit-lake-mount-st.-helens-national-volcanic-monument</loc>
<lastmod>2026-11-03</lastmod>
</url>
<url>
<loc>https://www.walpa.org/walpa-archive/revisiting-the-lake-washington-sediment-record-what-sediment-coring-studies-can-tell-us-about-long-term-water-quality-trends</loc>
<lastmod>2026-11-03</lastmod>
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<url>
<loc>https://www.walpa.org/walpa-archive/together-again-walpa-reconvenes-in-person-for-annual-conference</loc>
<lastmod>2026-11-03</lastmod>
</url>
<url>
<loc>https://www.walpa.org/walpa-archive/advancements-in-technology-simplify-water-quality-monitoring</loc>
<lastmod>2026-11-03</lastmod>
</url>
<url>
<loc>https://www.walpa.org/walpa-archive/assessing-the-effects-of-recreational-boating-on-the-water-quality-of-idaho%E2%80%99s-payette-lake</loc>
<lastmod>2026-11-03</lastmod>
</url>
<url>
<loc>https://www.walpa.org/walpa-archive/celebrating-a-champion-for-washington-lakes-this-year%E2%80%99s-secchi-disk-award-recognizes-rob-zisette-for-his-outstanding-leadership-and-passion-for-lake-protection</loc>
<lastmod>2026-11-03</lastmod>
</url>
<url>
<loc>https://www.walpa.org/walpa-archive/finding-hope-for-the-future-of-lake-sammamish-kokanee-by-quantifying-food-web-interactions</loc>
<lastmod>2026-11-03</lastmod>
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<url>
<loc>https://www.walpa.org/walpa-archive/fish-focused-annual-conference-hooks-membership</loc>
<lastmod>2026-11-03</lastmod>
</url>
<url>
<loc>https://www.walpa.org/walpa-archive/rapid-response-deployed-to-keep-quagga-mussels-out-of-the-columbia-river-system</loc>
<lastmod>2026-11-03</lastmod>
</url>
<url>
<loc>https://www.walpa.org/walpa-archive/a-lake-scale-test-of-zero-valent-iron-for-mitigating-hazardous-algal-blooms</loc>
<lastmod>2026-11-03</lastmod>
</url>
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<loc>https://www.walpa.org/walpa-archive/an-adaptive-approach-to-urban-lake-management</loc>
<lastmod>2026-11-03</lastmod>
</url>
<url>
<loc>https://www.walpa.org/walpa-archive/cd3-partnered-with-non-profit-wildlife-forever-and-usfws-to-protect-the-columbia-river-basin-from-aquatic-invasives</loc>
<lastmod>2026-11-03</lastmod>
</url>
<url>
<loc>https://www.walpa.org/walpa-archive/changes-are-coming-to-walpa-membership-structure</loc>
<lastmod>2026-11-03</lastmod>
</url>
<url>
<loc>https://www.walpa.org/walpa-archive/herrera%E2%80%99s-objective-approach-to-lake-management-plans</loc>
<lastmod>2026-11-03</lastmod>
</url>
<url>
<loc>https://www.walpa.org/walpa-archive/inspiring-the-next-generation-highlights-from-the-2024-early-career-panel-in-water-quality-and-environmental-science</loc>
<lastmod>2026-11-03</lastmod>
</url>
<url>
<loc>https://www.walpa.org/walpa-archive/nearly-150-lake-enthusiasts-attend-this-year%E2%80%99s-joint-conference-in-portland-highlighted-by-a-river-cruise</loc>
<lastmod>2026-11-03</lastmod>
</url>
<url>
<loc>https://www.walpa.org/walpa-archive/secchi-disk-award-goes-to-ben-peterson-for-his-tireless-work-on-aquatic-invasive-plants</loc>
<lastmod>2026-11-03</lastmod>
</url>
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<loc>https://www.walpa.org/walpa-archive/testing-lanthanum-modified-bentonite-as-an-arsenic-treatment-in-the-field</loc>
<lastmod>2026-11-03</lastmod>
</url>
<url>
<loc>https://www.walpa.org/walpa-archive/continuous-water-quality-data-strengthens-lake-management-decisions</loc>
<lastmod>2026-11-03</lastmod>
</url>
<url>
<loc>https://www.walpa.org/walpa-archive/ecology-testing-freshwater-fish-for-pfas%C2%A0</loc>
<lastmod>2026-11-03</lastmod>
</url>
<url>
<loc>https://www.walpa.org/walpa-archive/from-vegetation-to-water-quality-to-equipment%C2%A0the-only-turnkey-lake-contractor-in-the-pacific-northwest</loc>
<lastmod>2026-11-03</lastmod>
</url>
<url>
<loc>https://www.walpa.org/walpa-archive/how-to-best-care-for-your-lake-a-community-guide</loc>
<lastmod>2026-11-03</lastmod>
</url>
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<loc>https://www.walpa.org/walpa-archive/please-vote-to-complete-walpa%E2%80%99s-board-today</loc>
<lastmod>2026-11-03</lastmod>
</url>
<url>
<loc>https://www.walpa.org/walpa-archive/protecting-washington%E2%80%99s-waters-prevention-and-readiness-against-invasive-mussels</loc>
<lastmod>2026-11-03</lastmod>
</url>
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<loc>https://www.walpa.org/walpa-archive/remembering-sally-abella</loc>
<lastmod>2026-11-03</lastmod>
</url>
<url>
<loc>https://www.walpa.org/walpa-archive/renew-your-walpa-membership-for-2026</loc>
<lastmod>2026-11-03</lastmod>
</url>
<url>
<loc>https://www.walpa.org/walpa-archive/scabland-lakes-annual-conference-was-one-to-remember</loc>
<lastmod>2026-11-03</lastmod>
</url>
<url>
<loc>https://www.walpa.org/walpa-archive/studying-aquatic-invertebrates-in-washington%E2%80%99s-mountain-lakes</loc>
<lastmod>2026-11-03</lastmod>
</url>
<url>
<loc>https://www.walpa.org/walpa-archive/the-necessary-differences-in-responding-to-planktonic-vs.-benthic-toxic-cyanobacteria</loc>
<lastmod>2026-11-03</lastmod>
</url>
<url>
<loc>https://www.walpa.org/walpa-archive/walpa-recognizes-terry-mcnabb-with-the-2025-secchi-disk-award%C2%A0</loc>
<lastmod>2026-11-03</lastmod>
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<url>
<loc>https://www.walpa.org/walpa-archive/walpa-treasury-update</loc>
<lastmod>2026-11-03</lastmod>
</url>
<url>
<loc>https://www.walpa.org/walpa-archive/more-lakeside-neighbors-nutria-now-found-in-washington</loc>
<lastmod>2026-11-03</lastmod>
</url>
<url>
<loc>https://www.walpa.org/walpa-archive/news-from-nalms-as-we-plan-for-spokane</loc>
<lastmod>2026-11-03</lastmod>
</url>
<url>
<loc>https://www.walpa.org/walpa-archive/long-march-to-phosphorus-free-fertilizer-is-successful</loc>
<lastmod>2026-11-03</lastmod>
</url>
<url>
<loc>https://www.walpa.org/walpa-archive/walpa-seeks-new-board-members</loc>
<lastmod>2026-11-03</lastmod>
</url>
<url>
<loc>https://www.walpa.org/walpa-archive/algae-can-function-as-indicators-of-water-pollution</loc>
<lastmod>2026-11-03</lastmod>
</url>
<url>
<loc>https://www.walpa.org/walpa-archive/be-rainwise-control-stormwater-quality-and-quantity-on-your-property</loc>
<lastmod>2026-11-03</lastmod>
</url>
<url>
<loc>https://www.walpa.org/walpa-archive/clean-drain-dry-to-fight-invasive-species</loc>
<lastmod>2026-11-03</lastmod>
</url>
<url>
<loc>https://www.walpa.org/walpa-archive/walpa-goes-to-wenatchee-%E2%80%93-save-the-date</loc>
<lastmod>2026-11-03</lastmod>
</url>
<url>
<loc>https://www.walpa.org/walpa-archive/walpa-needs-you-for-the-board-of-directors</loc>
<lastmod>2026-11-03</lastmod>
</url>
<url>
<loc>https://www.walpa.org/walpa-archive/where-are-they-now-update-on-walpa-scholarship-winner-elizabeth-rosenberger</loc>
<lastmod>2026-11-03</lastmod>
</url>
<url>
<loc>https://www.walpa.org/walpa-archive/ecology%E2%80%99s-freshwater-algae-control-program-helps-identify-and-publicize-harmful-blooms</loc>
<lastmod>2026-11-03</lastmod>
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<loc>https://www.walpa.org/walpa-archive/join-us-october-16-18-at-the-joint-walpaola-annual-conference-in-vancouver</loc>
<lastmod>2026-11-03</lastmod>
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<loc>https://www.walpa.org/walpa-archive/legislative-update-how-did-lakes-fare-in-olympia-this-year</loc>
<lastmod>2026-11-03</lastmod>
</url>
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<loc>https://www.walpa.org/walpa-archive/remembering-dave-lamb</loc>
<lastmod>2026-11-03</lastmod>
</url>
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<loc>https://www.walpa.org/walpa-archive/walpa-needs-you-join-the-board-of-directors</loc>
<lastmod>2026-11-03</lastmod>
</url>
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<loc>https://www.walpa.org/walpa-archive/walpa-scholarship-winners-%E2%80%93-where-are-they-now%E2%80%A8</loc>
<lastmod>2026-11-03</lastmod>
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<loc>https://www.walpa.org/walpa-archive/a-new-tool-for-lake-protection-in-mason-county</loc>
<lastmod>2026-11-03</lastmod>
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<lastmod>2026-11-03</lastmod>
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<loc>https://www.walpa.org/walpa-archive/join-us-this-fall-in-chelan-for-a-focus-on-applied-limnology</loc>
<lastmod>2026-11-03</lastmod>
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<loc>https://www.walpa.org/walpa-archive/remembering-billy-frank</loc>
<lastmod>2026-11-03</lastmod>
</url>
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<loc>https://www.walpa.org/walpa-archive/the-lake-nahwatzel-story%C2%A0-an-unfinished-journey</loc>
<lastmod>2026-11-03</lastmod>
</url>
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<loc>https://www.walpa.org/walpa-archive/2015-annual-walpa-conference</loc>
<lastmod>2026-11-03</lastmod>
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<lastmod>2026-11-03</lastmod>
</url>
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<loc>https://www.walpa.org/walpa-archive/reintroducing-native-salmon-above-formerly-impassable-dams-on-the-lewis-river</loc>
<lastmod>2026-11-03</lastmod>
</url>
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<loc>https://www.walpa.org/walpa-archive/send-us-your-nominations-for-the-2015-secchi-disk-award</loc>
<lastmod>2026-11-03</lastmod>
</url>
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<loc>https://www.walpa.org/walpa-archive/water-quality-and-algae-diversity-of-ten-mountain-lakes-along-the-mountain-loop-highway-washington</loc>
<lastmod>2026-11-03</lastmod>
</url>
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<lastmod>2026-11-03</lastmod>
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<loc>https://www.walpa.org/walpa-archive/arsenic-in-lakes-in-the-puget-sound-lowlands-mobility-and-bioavailability-30-years-after-smelter-closure</loc>
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