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 3745-1-05 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.

* Designated use based on justification other than the results of a biological field assessment performed by the Ohio environmental protection agency.

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Effective: 5/22/2017
Five Year Review (FYR) Dates: 11/29/2016 and 05/22/2022
Promulgated Under: 119.03
Statutory Authority: 6111.041
Rule Amplifies: 6111.041
Prior Effective Dates: 4/4/1985, 8/19/1985, 4/5/1990, 4/21/1992, 9/30/1993, 4/26/1997, 7/31/1999, 3/29/2001, 7/21/2002, 4/1/2007, 4/23/2008, 6/16/2011, 9/1/2014