Technical Assistance Documents for States and Tribes
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The EPA provides technical support for states and tribes as they develop biological criteria and biological assessment programs. Some technical assistance is applicable to all water bodies in general, and other technical assistance targets specific types of water bodies. Click the links for technical assistance documents applicable to:
- All Water Bodies
- Lakes and Reservoirs
- Streams and Wadeable Rivers
- Estuaries and Near Coastal Waters
- Coral Reefs
All Water Bodies
2013 Biological Assessment Program Review: Assessing Level of Technical Rigor to Support Water Quality Management
This document provides a process for states and tribes to evaluate the technical rigor and breadth of capabilities of a biological assessment program. Using the program review process described in this document, states and tribes can identify the technical capabilities and the limitations of their biological assessment programs and develop a plan to build on the program strengths and address the limitations.
- Report (PDF) (158 pp, 5.6MB)
2011 Primer on Using Biological Assessment to Support Water Quality Management
This guide serves as a primer on the role of biological assessments in a variety of water quality management program applications, including reporting on the condition of the aquatic biota, establishing biological criteria, and assessing the effectiveness of Total Maximum Daily Load determinations and pollutant source controls. This guide provides a brief discussion of technical tools and approaches for developing strong biological assessment programs and presents examples of successful application of those tools.
- Report (PDF) (108 pp, 6.1MB)
2000 Stressor Identification Guidance
The Stressor Identification (SI) Guidance leads water resource managers through a formal and rigorous process that identifies stressors causing biological impairment in aquatic ecosystems, and provides a structure for organizing the scientific evidence supporting the conclusions. The ability to accurately identify stressors and defend the evidence supporting those findings is a critical step in developing strategies that will improve the quality of aquatic resources.
- Report (PDF) (228 pp, 1.9MB)
1992 Procedures for Initiating Narrative Biological Criteria
This guidance document describes EPA expectations regarding the development of narrative biological criteria, and helps to clarify and support the term narrative biological criteria as presented on the 1990 Biological Criteria National Program Guidance for Surface Waters. This document summarizes in a simple and easy to understand manner the historical background to biological criteria; the linkage between biological integrity and reference; the use of reference as the goal to define and protect aquatic life uses, inform attainment decisions, and follow up regulatory actions. This document provides information on what is necessary to develop a narrative biological criterion –including and example- and recommends quantitative information to be incorporated into the assessment phase and eventually into a numeric criterion.
- Report (PDF) (16 pp, 1MB)
1990 Biological Criteria: National Program Guidance for Surface Waters
This document provides guidance for development and implementation of narrative biological criteria. More recent guidance documents on this page provide additional technical information to facilitate development and implementation of narrative and numeric criteria for each of the surface water types.
- Report (PDF) (68 pp, 5.8MB)
Lakes and Reservoirs
1998 Lake and Reservoir Bioassessment and Biocriteria: Technical Guidance Document
This EPA guidance document provides a tool to assist lake managers in using scientifically valid, practical biological assessment in the management of the Nation's lakes and reservoirs. The guidance was developed based on the experiences of existing state, regional and national lake monitoring programs, some of which are cited in case studies throughout the document.
2000 Status of State and Tribal Programs for Lakes and Reservoirs
This map depicts the status of the State and Tribal programs in their development of biocriteria for lakes in reservoirs in 2000.
Streams and Wadeable Rivers
2003 Developing Biological Indicators: Lessons Learned from Mid-Atlantic Streams
This document presents issues, discussed in the Mid-Atlantic Integrated Assessment workshops, arose in the development of biological monitoring tools for fish, invertebrates, and periphyton. It is aimed at agency scientists or managers tasked with implementing regional monitoring programs. The hope is that the lessons learned in the Mid-Atlantic pilot study may serve as guideposts in the development of indicators or management plans.
- Report (PDF) (54 pp, 707K)
1999 Rapid Bioassessment Protocols for Use in Streams and Wadeable Rivers
The rapid bioassessment protocols were can be used to provide basic aquatic life data for water quality management purposes such as problem screening, site ranking, and trend monitoring.
1997 Biological Monitoring and Assessment: Using Multimetric Indexes Effectively
This report discusses the state of US flowing waters and the value of multimetric biological indexes in assessing and communicating their condition.
- Report (PDF) (155 pp, 7.5MB)
Estuaries and near Coastal Waters
2000 Estuarine and Coastal Marine Waters: Bioassessment & Biocriteria Technical Guidance
This document provides an extensive collection of methods and protocols for conducting bioassessments in estuarine and coastal marine waters and the procedures for deriving biocriteria from the results. Several case studies illustrate the bioassessment process and biocriteria derivation procedures.
2002 Methods for Evaluating Wetland Condition
Several documents have been published to upport the National Nutrient Strategy by providing states and tribes with methods to assess waterbody nutrient impairment and develop ecoregion-specific nutrient criteria.
The wetlands modules are a starting point to help states and tribes establish biological and nutrient water quality criteria specifically refined for wetlands. Here we link to the biological criteria-related documents in the wetlands modules. To view all wetlands modules click here.
- Introduction to Wetland Bioassessment (PDF) (42 pp, 1.6MB)
- Developing Metrics and Indexes of Biological Integrity (PDF) (45 pp, 598K)
- Volunteers and Wetland Biomonitoring (PDF) (26 pp, 475K)
- Developing an Invertebrate Index of Biological Integrity for Wetlands (PDF) (57 pp, 1.5MB)
- Use of Amphibians for Bioassessment of Wetlands (PDF) (48 pp, 1.5MB)
- Biological Assessment Methods for Birds (PDF) (22 pp, 813K)
- Wetlands Bioassessment Case Studies (PDF) (104 pp, 1.2MB)
1998 Wetlands Bioassessment Fact Sheets
This is a series of ten fact sheets describing how States and Tribes can develop biological criteria and conduct biological assessments in wetlands.
2010 Coral Reefs Biological Criteria: Using the Clean Water Act to Protect a National Treasure
This document provides assistance to coral reef managers on how to use the Clean Water Act and coral reef biological criteria as part of a comprehensive framework to organize their protection efforts.
- Report (PDF) (153 pp, 5MB)
2007 Stony Coral Rapid Bioassessment Protocol
EPA's Stony Coral Rapid Bioassessment Protocol is an inexpensive, no-contact, non-technical underwater survey procedure designed for jurisdictions with coral expertise but limited funding and personnel. The protocol focuses only on scleractinian (stony) reef-building corals because of their fundamental importance to coral reef ecology and ecosystem value. This focus provides vital information for reef assessment and provides a strong foundation for characterization of other reef attributes.
- Report (PDF) (72 pp, 4MB)
2006 Bioassessment Tools for Stony Corals
EPA conducted a biological survey in St. Croix, U.S. Virgin Islands to inform and calibrate a long-term monitoring strategy for development of coral reef biocriteria. Data from the biological survey were used to validate metrics and the approach that is described in the 2007 Stony Coral Rapid Bioassessment Protocol described above. Three publications have been finalized in support of this effort.
- Field Testing of Monitoring Protocols in the US Virgin Islands (St. Croix) (PDF) (51 pp, 983K)
- Statistical Evaluation of Candidate Metrics in the Florida Keys (PDF) (35 pp, 345K)
- Monitoring Approaches and Proposed Sampling Plan for the U.S. Virgin Islands (PDF) (25 pp, 243K)
2006 Coral Reef Task Force Biocriteria Workshop
EPA hosted a workshop on biocriteria for coral reefs on May 5, 2006, as part of the 15th Coral Reef Task Force meeting in Washington, DC. Presenters gave a scientific and regulatory overview of biocriteria, within the context of the Clean Water Act, and covered EPA's efforts to support the development of biocriteria for corals. The workshop spotlighted efforts by the U.S. Virgin Islands, the Commonwealth of the Northern Marianas Islands, and American Samoa to develop biocriteria for their coral reefs.
- Biological Criteria for the Protection of Coral Reefs (PDF) (15 pp, 730K)
- Biocriteria Development in the Pacific Islands – Overview (PDF) (4 pp, 1.2MB)
- Biocriteria in CNMI and AS: Using Coral Reef Communities as Indicators to Waterbody Health (PDF) (16 pp, 1MB)
- EPA tools for biocriteria development (PDF) (33 pp, 962MB)
1998 Development of Biological Criteria for Coral Reef Ecosystem Assessment
This paper assessed the feasibility of establishing biological criteria for assessing coral reef ecosystems. It established the groundwork for more recent coral reef bioassessment efforts.
- Report (PDF) (80 pp, 949K)