Ohio Administrative Code Search

... referenced in this rule, see rule 3745-1-03 of the Administrative Code.] (A) General information. The chemical-specific criteria listed in this rule apply as "Outside Mixing Zone" or "Inside Mixing Zone Maximum." For the purpose of setting water quality based effluent limits, the criteria which apply "Outside Mixing Zone" shall be met after the effluent and the receiving water are reasonably well mixed as provided...

...eferenced in this rule, see rule 3745-1-03 of the Administrative Code.] (A) Applicability. The director may grant a variance to a water quality standard (WQS, where WQS, for the purpose of this rule, means criteria and tier II values adopted in or developed under this chapter) which is the basis of a water quality-based effluent limit (WQBEL) included in a national pollutant discharge elimination s...

...eferenced in this rule, see rule 3745-1-03 of the Administrative Code.] (A) Requirements for site-specific modifications to criteria and values. Criteria and values adopted in, or developed pursuant to, this chapter may be modified on a site-specific basis to reflect local environmental conditions in accordance with the following provisions. Any such modifications shall be protective of designated ...

...eferenced in this rule, see rule 3745-1-03 of the Administrative Code.] (A) Requirements for site-specific modifications to criteria and values. Criteria and values adopted in, or developed pursuant to, this chapter may be modified on a site-specific basis to reflect local environmental conditions. These criteria and values shall be developed and approved in accordance with the following provisions...

...eria have not been adopted in rule 3745-1-35 of the Administrative Code, shall not exceed the water quality criteria or values derived using the procedures contained in this rule. (A) Tier I acute aquatic criterion (AAC) and tier II acute aquatic value (AAV). This criterion and value apply outside the mixing zone to all aquatic life habitat use designations. This criterion and value shall be expressed as the quantit...

...eria have not been adopted in rule 3745-1-35 of the Administrative Code, may not exceed the water quality criteria or values derived using the procedures contained in this rule. (A) Tier I acute aquatic criterion (AAC) and tier II acute aquatic value (AAV). This criterion and value apply outside the mixing zone to all aquatic life habitat use designations. This criterion and value are expressed as the quantity of ch...

... referenced in this rule, see rule 3745-1-03 of the Administrative Code.] (A) The purpose of this rule is to describe procedures for deriving bioaccumulation factors (BAFs) to be used in the calculation of human health tier I criteria and tier II values and wildlife tier I criteria. A subset of the human health BAFs are also used to identify the chemicals that are considered bioaccumulative chemicals of concern (BCC...

... referenced in this rule, see rule 3745-1-03 of the Administrative Code.] (A) The purpose of this rule is to describe procedures for deriving bioaccumulation factors (BAFs) to be used in the calculation of human health tier I criteria and tier II values and wildlife tier I criteria. A subset of the human health BAFs are also used to identify the chemicals that are considered bioaccumulative chemicals of concern (BCC...

... referenced in this rule, see rule 3745-1-03 of the Administrative Code.] This rule applies to water bodies located in the lake Erie drainage basin. All pollutants or combinations of pollutants, for which human health criteria have not been adopted in rule 3745-1-33 or 3745-1-34 of the Administrative Code, shall not exceed the water quality criteria or values derived using the procedures contained in this rule. (A)...

...eferenced in this rule, see rule 3745-1-03 of the Administrative Code.] This rule applies to water bodies located in the lake Erie drainage basin. All pollutants or combinations of pollutants, for which human health criteria have not been adopted in rule 3745-1-33 or 3745-1-34 of the Administrative Code, shall not exceed the water quality criteria or values derived using the procedures contained in this ru...

... referenced in this rule, see rule 3745-1-03 of the Administrative Code.] This rule applies to water bodies located in the lake Erie drainage basin. This rule establishes a methodology which is required when developing tier I wildlife criteria for bioaccumulative chemicals of concern (BCCs). (A) General provisions. (1) A tier I wildlife criterion is the concentration of a substance which is likely to, if not excee...

... referenced in this rule, see rule 3745-1-03 of the Administrative Code.] This rule applies to water bodies located in the lake Erie drainage basin. This rule establishes the methodology required when developing tier I wildlife criteria for bioaccumulative chemicals of concern (BCCs). (A) General provisions. (1) A tier I wildlife criterion is the concentration of a substance which is likely to, if not exceeded, p...

...eferenced in this rule, see rule 3745-1-03 of the Administrative Code.] [Comment: See rule 3745-2-09 of the Administrative Code for whole effluent toxicity water quality based effluent limit calculation procedures.] (A) Protection of aquatic life - whole effluent approach. (1) An acute toxicity level of 0.3 acute units (TU a ) shall apply outside the mixing zone to limited resource water, warmwat...

...eferenced in this rule, see rule 3745-1-03 of the Administrative Code.] [Comment: See rule 3745-2-09 of the Administrative Code for whole effluent toxicity water quality based effluent limit calculation procedures.] (A) Protection of aquatic life - whole effluent approach. (1) An acute toxicity level of 0.3 acute units (TU a ) applies outside the mixing zone to limited resource water, warmwater, ...

... referenced in this rule, see rule 3745-1-03 of the Administrative Code.] In addition to the definitions in rules 3745-1-02 and 3745-32-01 of the Administrative Code technical words used in rules 3745-1-50 to 3745-1-54 of the Administrative Code shall be defined as follows: (A) "33 C.F.R." means Title 33 of the Code of Federal Regulations effective July 1, 2017. (B) "40 C.F.R." means Title 40 of th...

...graph (AA) of this rule and rule 3745-1-03 of the Administrative Code.] In addition to the definitions in rules 3745-1-02 and 3745-32-01 of the Administrative Code technical words used in rules 3745-1-50 to 3745-1-54 of the Administrative Code are defined as follows: (A) (1) "Alternatives analysis" means a systematic review and evaluation of practicable alternatives including avoidance, minimizat...

...ferenced in this rule, see rules 3745-1-03 and 3745-1-50 of the Administrative Code.] [Comment: To the extent the director has specific authority under Chapter 6111. of the Revised Code, including sections 6111.03 and 6111.041 of the Revised Code, the criteria specified in this rule are applicable to the maintenance or rehabilitation (enhancement) of wetland functions. Such authority includes the issuance ...

...ferenced in this rule, see rules 3745-1-03 and 3745-1-50 of the Administrative Code.] [Comment: To the extent the director has specific authority under Chapter 6111. of the Revised Code, including sections 6111.03 and 6111.041 of the Revised Code, the criteria specified in this rule are applicable to the maintenance or rehabilitation (enhancement) of wetland functions. Such authority includes the issuance ...

...rges to wetlands pursuant to Chapter 6111. of the Revised Code, numeric chemical criteria associated with the "warmwater aquatic life habitat" use designation, as specified in this chapter of the Administrative Code, apply at the outfall prior to discharge to the wetland. The applicant may submit a request, in writing, to the director to use alternative criteria. The director may approve the request if th...

...harges to wetlands pursuant to Chapter 6111. of the Revised Code, numeric chemical criteria associated with the "warmwater aquatic life habitat" use designation, as specified in this chapter of the Administrative Code, shall apply at the "end of pipe". The applicant may submit a request, in writing, to the director to use alternate criteria. The director may approve the request if the use of alternative criteria is d...

... definition of a wetland in rule 3745-1-02 of the Administrative Code are assigned the wetland designated use.

...referenced in this rule, see rules 3745-1-03 and 3745-1-50 of the Administrative Code.] [Comment: For definitions of terms used in this rule, see rules 3745-1-02 and 3745-1-50 of the Administrative Code.] (A) The provisions in this rule apply in addition to the provisions in rule 3745-1-05 of the Administrative Code. (B) Wetland antidegradation requirements. (1) The wetland designated use shall be maintained and ...

...referenced in this rule, see rules 3745-1-03 and 3745-1-50 of the Administrative Code.] [Comment: For definitions of terms used in this rule, see rules 3745-1-02 and 3745-1-50 of the Administrative Code.] (A) The provisions in this rule apply in addition to the provisions in rule 3745-1-05 of the Administrative Code. (B) Wetland antidegradation requirements. (1) The wetland designated use shall be maintained and ...

...rds (WQS) established in Chapter 3745-1 of the Administrative Code. This chapter sets forth rules for developing water quality based effluent limitations for point sources and total maximum daily loads (TMDLs) for discharges of any pollutant requiring control, including toxic, carcinogenic, and organoleptic pollutants. This chapter specifies how to determine when a wasteload allocation is necessary, how t...

...ned treatment works Q Flow, as in 7Q10 RAP Remedial action plan SDR Stream-to-discharge ratio TCDD Tetrachloro-dibenzo dioxin TMDL Total maximum daily load TU a Acute toxic unit TU c Chronic toxic unit U.S.C. United States Code U.S. EPA United States environmental protection agency WLA Wasteload allocation WQBEL Water quality based effluent limit WET Whole effluent to...