National Rivers & Streams Assessment 2018-19 Field Operations Manual Wadeable
You may need a PDF reader to view some of the files on this page. See EPA’s About PDF page to learn more.- NRSA 2018-19 Field Operations Manual Wadeable (PDF) (PDF)(184 pp, 16 MB)
- NRSA 2018-19 Field Operations Manual Appendices (PDF) (PDF)(94 pp, 40 MB)