Streams TrendLikelihood Results

Trend analysis results for water quality data collected through King County's ambient stream water quality monitoring program. Trends were calculated for all sites with at least 5 years of data.

Trend results are based on Mann-Kendall–style pairwise slope estimation with censored-data imputation using a truncated log-normal distribution. Trend likelihoods reflect statistical probability rather than regulatory exceedance or causal inference. Results may be sensitive to data gaps, sampling frequency, and changes in analytical methods over time.
Organization: King County, Washington
Organization URL: https://catalog.data.gov/organization/king-county-wa
Last updated: 2026-02-11
Tags: streams, trends, water quality