Table 1. Summary of 49 States and Puerto Rico/USVI Bioassessment and Biocriteria Programs
| Biocriteria in Water Quality Standards | Number of Programs (51 total) |
|---|---|
| Narrative biocriteria statement only | 15 |
| Narrative biocriteria statement with quantitative implementation procedures or translators only | 19 |
| Numeric biocriteria (all states with numeric bio criteria also have narratives) | 5 |
| Assemblages in Bioassessment Program | |
| Benthic macroinvertebrates | 49 |
| Fish | 36 |
| Periphyton | 22 |
| Amphibians | 4 |
| > 1 assemblage assessed | 45 |
| Application of Biocriteria and/or Bioassessment Data | |
| Support 303(d) listings | 45 |
| Support antidegradation policies | 15 |
| Refining Aquatic Life Use | 22 |
| 305(b) water condition assessments | 43 |
| Non-point source assessments | 38 |
| BMP evaluation | 30 |
| Restoration goals | 28 |