In Arctic regions like Utqiaġvik, Alaska, lakes and lagoons are sensitive to both climate change and nearby human infrastructure. These water bodies sit on permafrost, and their temperature, chemistry, and biology can respond quickly to thawing ground and urban development. Our team has been monitoring these changes for two years (2024–2025) to better understand how water quality varies across space, seasons, and years.

We studied three water bodies with different levels of infrastructure nearby: Imikpuk Lake (low), Middle Salt Lagoon (moderate), and Isatkoak Lagoon (high). During June and October field campaigns, we measured water temperature, oxygen, pH, clarity, algae, and other chemical indicators using a multiparameter probe. Our results show that water bodies closer to roads and buildings consistently had warmer water, more dissolved material, and greater variability across the shoreline.

Statistical analyses confirmed that infrastructure was the strongest factor shaping water conditions. We also observed seasonal increases in algae and turbidity, especially at the most developed site.

This work highlights the importance of long-term monitoring in Arctic towns. By combining field data with spatial analysis, we can track how human activity and climate together influence Arctic freshwater systems—and use that knowledge to support sustainable planning in permafrost environments.