Adirondack Long-Term Lake Chemistry Data Through 2024

Adirondack Park lake water chemistry and nutrient records updated through October 2024. The dataset extends a prior long-term monitoring set, adding 25 new lakes for a total of 53, and includes new analytes UV254 and surface water temperature. It was compiled by Jeremy Farrell from the USGS AQ Samples database.

Use Cases

• Analyze long-term trends in lake water chemistry based on the multi-decade monitoring records.
• Model relationships between nutrients and other water quality indicators across 53 lakes.
• Assess the impact of environmental factors on DOC absorbance (UV254) and surface water temperature.
• Compare water chemistry between the original 28 AEAP+ALTM lakes and the 25 newly added ALTM-only lakes.

Strengths

• Extends a previously published long-term dataset with records through October 2024.
• Adds 25 new monitoring lakes, expanding the spatial scope from 28 to 53 lakes.
• Introduces two new measured analytes: UV254 (DOC absorbance) and surface water temperature.
• Data is sourced from the authoritative USGS AQ Samples database.

Limitations

• Biological, profile, Secchi, and meteorological tables are unchanged and cover only the original 28 lakes.
• Row count is unknown, which may limit suitability assessment.
• Column-level documentation is absent; field semantics must be inferred after download.

Provenance

Source

USGS AQ Samples database (https://waterdata.usgs.gov/download-samples/)

Collection Method

Extension of the Adirondack Park long-term lake dataset (Farrell et al. 2018).

Time Range

1992–2024

Freshness

Last updated 2026-05-16 03:41:07

Geography

Adirondack Park lakes, New York, USA