Section 3745-1-21 - Great Miami river drainage basin(A) The water bodies listed in table 21-1 of this rule are ordered from downstream to upstream. Tributaries of a water body are indented. The aquatic life habitat, water supply and recreation use designations are defined in rule 3745-1-07 of the Administrative Code. The state resource water use designation is defined in rule 3745-105 of the Administrative Code. The most stringent criteria associated with any one of the use designations assigned to a water body will apply to that water body.(B) Figure 1 of the appendix to this rule is a generalized map of the Great Miami river drainage basin. A generalized map of Ohio outlining the twenty-three major drainage basins and listing associated rule numbers in this chapter is in figure 1 of the appendix to rule 3745-1-08 of the Administrative Code.(C) RM, as used in this rule, stands for river mile and refers to the method used by the Ohio environmental protection agency to identify locations along a water body. Mileage is defined as the lineal distance from the downstream terminus (i.e., mouth) and moving in an upstream direction.(D) The following symbols are used throughout this rule: * Designated use based on the 1978 water quality standards.
+ Designated use based on the results of a biological field assessment performed by the Ohio environmental protection agency.
o Designated use based on justification other than the results of a biological field assessment performed by the Ohio environmental protection agency.
Table 21-1. Use designations for water bodies in the Great Miami river drainage basin.
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Appendix
Figure 1. Great Miami river drainage basin.
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Ohio Admin. Code 3745-1-21
Effective: 7/18/2022
Five Year Review (FYR) Dates: 11/9/2021 and 07/18/2027
Promulgated Under: 119.03
Statutory Authority: 6111.041
Rule Amplifies: 6111.041
Prior Effective Dates: 04/04/1985, 08/19/1985, 04/05/1990, 04/21/1992, 09/30/1993, 04/26/1997, 07/31/1999, 03/29/2001, 07/21/2002, 04/01/2007, 04/23/2008, 06/16/2011, 09/01/2014, 05/22/2017