Findings > Non-metals​​​

Aquatic Life Cold 1 standards were used to compare with analytical results for the five non-metals that apply in evaluating streams for classification as Colorado Outstanding Waters.​​

Also shown in the tables below are a comparison of total nitrogen and phosphorus (nutrients) with interim standards and results from additional sampling for bacteria concentrations.

The analytical results are from samples collected seasonally since summer 2020 at nine study area streams, the same shown in metals findings.

As evident from examining the tables below, only bacteria concentrations (E. coli and total coliform) on occasions at some streams were higher than the standards.