Table 2.

GI related indicators that have been used within Congress Run-Mill Creek Watershed [19,54].

Indicator	Description
Escherichia coli (E. coli) criterion	Recreational water quality criteria are based on the amount of E. coli bacteria present in a water sample. Levels of E. coli indicate fecal contamination and the potential presence of pathogenic organisms.
Invertebrate Community Index (ICI)	Aquatic life water quality criteria are based in part on the ICI, which uses the abundance and diversity of macroinvertebrates (such as mayflies, caddisflies, dipteran, and tolerant organisms) to determine the health of the macroinvertebrate assemblage.
Index of Biotic Integrity for fish assemblages (IBI)	Aquatic life water quality criteria are based in part on the IBI, which expresses the diversity and condition of a site’s fish community.
Modified Index of Well-Being (MIwb)	Aquatic life water quality criteria are based in part on the MIwb, which is applicable in streams with drainage areas >20 mi2 (52 km2). This index is based upon fish assemblage measures including numbers, biomass, and two diversity indices (e.g., Shannon Index). The MIwb reflects the overall diversity and productivity of the fish population and frequently responds before the IBI to improvements in water quality and habitat.
Qualitative Habitat Evaluation Index (QHEI)	QHEI is a qualitative habitat evaluation assessment tool that identifies habitat variables that are important for attainment of the Ohio aquatic life criteria.
Area of Degradation to Attainment (ADV/AAV)	The ADV/AAV ratio can be used to demonstrate the magnitude and extent of changes in condition along segments between sampling years.
Restorability Score (1–100)	To ease the interpretation of complex environmental data, individual stressors and responses were ranked on a 1–100 scale linked to the tiered aquatic life uses codified in Ohio’s water quality standards for prioritizing sites for restoration.