Ohio Administrative Code Search

...tland that is saturated, primarily by a discharge of free flowing ground water during most of the year. Fens are rarely inundated. Fens often have a sloped surface which prevents the accumulation of stagnant or ponded water. The water of fens is usually mineral rich and has a circumneutral pH (5.5-9.0). In calcareous fens, soil may be dominated by deposits of calcium carbonate rich sediments (marl...

...he purposes of establishing waste water discharge permit limits for waste water discharges 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 cr...

...i) Ground water exchange, including the discharge and recharge of ground water. (ii) Nutrient removal or transformation. (iii) Sediment or contaminant retention. (iv) Water storage. (v) Sediment stabilization. (vi) Shoreline stabilization. (vii) Maintenance of biodiversity, as that term is defined in rule 3745-1-50 of the Administrative Code. (viii) Recreation. (ix) Education and research. (x) Habitat for th...

...d 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 to calculate a wasteload allocation, how to determine the reasonable potential of a pollutant to cause or contribute to an excursion of the WQS, and how to develop a TMDL for a ...

...centration NPDES National pollutant discharge elimination system OMZM Outside mixing zone maximum PQL Practical quantification level PEL Preliminary effluent limit PEQ Projected effluent quality POTW Publicly owned 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 ...

...the Administrative Code.] (A) For each discharge that may require the development of water quality-based effluent limitations (WQBELs), Ohio EPA shall develop wasteload allocations (WLAs) for pollutants if any of the following apply: (1) The maximum projected effluent quality (PEQ) determined for that discharge and pollutant is greater than or equal to twenty-five per cent of the smallest of the...

...2 of the Administrative Code.] (A) For discharges of toxic and carcinogenic pollutants to flowing receiving waters, a wasteload allocation (WLA) for a pollutant shall be calculated for each water quality criterion applicable in accordance with rule 3745-2-04 of the Administrative Code using the following mass balance equation: [WQC(Q eff + Q up ) - Q up (WQ up )] / Q eff Where: WQC = water quali...

...ving water at a point downstream of the discharge is greater than or equal to seventy-five per cent of the loading capacity of the receiving water at that point, where, for the purpose of this determination: (a) The total load of a pollutant is determined as the sum of the background load and the load associated with the PEL for that discharge. If multiple discharges were included...

...wn or suspected carcinogen present in a discharge shall be considered additive in accordance with this rule. A known or suspected carcinogen is considered present if its preliminary effluent limitation (PEL) falls within group three, four or five of the reasonable potential procedures contained in rule 3745-2-06 of the Administrative Code. (2) Except as provided in paragraphs (A)(3) and (A)(4) of...

...(A) For discharges of whole effluent toxicity (WET) to flowing receiving waters, the WQBEL for WET shall be calculated using the following mass balance equation: Where: WQC = toxicity level as established in paragraph (A) of rule 3745-1-44 of the A...

...(A) For discharges of ammonia-nitrogen (NH 3 -N) to flowing receiving waters, the wasteload allocation (WLA) shall be calculated using the following mass balance equation: WLA = [WQC (Q eff + Q up ) - Q up (WQ up )] / Q eff Where: WLA = wasteload allocation, as defined in rule 3745-2-02 of the Administrative Code. WQC = water quality criterion as established in rule 3745-2-04 of the Administ...

... stream uses. (D) Exception for direct discharges to lake Erie. If it is necessary to determine a WLA for a direct discharge to lake Erie, the mixing assumptions contained in paragraph (B) of rule 3745-2-05 of the Administrative Code shall be used. (E) Exception for direct discharges to the Ohio river. If it is necessary to determine a WLA for a direct discharge to the Ohio river, the mixing ass...

...olders: (i) Potentially affected dischargers. (ii) County soil and water conservation districts. (iii) Other interested stakeholders. This may include a watershed specific stakeholder distribution list or listserv. (c) Allow not less than thirty days for input at each stage required in paragraph (A)(2)(a) of this rule. (d) For TMDLs in development prior to September 29, 2017, prov...

...nts or pollutant properties that may be discharged to a POTW by new or existing industrial users in specific subcategories, promulgated by the administrator in accordance with section 307 of the act and established under 40 C.F.R. chapter I, subchapter N. (3) "Control authority" means one of the following: (a) The POTW, if it is administering an approved pretreatment program. (b) Ohio EPA, if t...

...llons per day and receives indirect discharges, if the director determines that such a program is necessary to prevent interference or pass through. The director shall consider and base the determination on any of the following: (a) The nature or volume of the indirect discharges. (b) The number, nature, or frequency of violations of effluent limitations contained in the POTW's NPDES permit. (c) Th...

...llons per day and receives indirect discharges, if the director determines that such a program is necessary to prevent interference or pass through. The director shall consider and base the determination on any of the following: (a) The nature or volume of the indirect discharges. (b) The number, nature, or frequency of violations of effluent limitations contained in the POTW's NPDES permit. (c) Th...

...le apply to all sources of indirect discharge whether or not the source is subject to other national, state, or local pretreatment standards or requirements. (B) The following described substances shall not be introduced into a POTW: (1) Pollutants that create a fire or explosion hazard in the POTW including, but not limited to, wastestreams with a closed cup flashpoint of less than sixty degree...

... notify the POTW immediately of all discharges that could cause problems to the POTW, including any slug loading, as defined in paragraph (S) of rule 3745-3-01 of the Administrative Code. The industrial user shall immediately notify the POTW upon discovery of any slug load by completing the following: (1) If the discharge is to a POTW administering an approved POTW pretreatment program, the indus...

...rrently discharging to, or intending to discharge to a POTW shall submit to the control authority a baseline report which contains the information listed in paragraphs (C)(1) to (C)(8) of this rule. The industrial user shall submit this information to the control authority within one hundred eighty days after the effective date of a categorical pretreatment standard, or one hundred eighty days aft...

...e Administrative Code - "Prohibited discharges," and with any more stringent pretreatment standards applicable under an approved POTW pretreatment program. (C) Existing sources that become industrial users subsequent to promulgation of an applicable categorical pretreatment standard shall be considered existing industrial users except where such sources meet the definition of a new source as ...

...ubmitted pursuant to national pollutant discharge elimination system (NPDES) permits and compliance sampling results from licensed public water systems with surface water intakes conducted pursuant to Chapters 3745-81 and 3745-90 of the Administrative Code. (b) Data were submitted pursuant to findings and orders issued by the director. (c) Data were submitted pursuant to a court order. (E) Nothing ...

...ment of stage, and v. 2, Computation of discharge. U.S. Geological Survey Water-Supply Paper 2175. United States Department of Interior, U.S. Geological Survey. Washington D.C. 631 p." (b) Lipscomb, S.W. 1995. Quality assurance plan for discharge measurements using broadband acoustic Doppler current profilers. "U.S. Geological Survey Open File Report 95-701. 12 p." (c) "U.S. Geological Survey. 2005....

... practices that reduce or prevent the discharge of pollutants to waters of the state, typically from a nonpoint source, but could also be from green infrastructure storm water controls. (2) "Bioaccumulative chemical of concern" or "BCC" means bioaccumulative chemical of concern, as defined in rule 3745-1-02 of the Administrative Code. (C) (1) "Concentrated animal feeding operation" or "CAFO...

...ality credits to comply with the no discharge technology limit that applies to a CAFO production area. (3) Load reductions that are achieved by implementing BMPs or habitat restoration projects are eligible for the generation of water quality credits provided the practices or projects are not implemented to comply with a nutrient management plan required under an NPDES permit or a permit-to-opera...

... by the approved TMDL. (2) The current discharge level. (B) For permittees in an area where there is not an approved TMDL or where water quality fully supports designated uses assigned in Chapter 3745-1 of the Administrative Code, the water quality baseline shall be the lower of the following: (1) The existing NPDES permit limit. (2) A technology-based performance standard. (3) The curren...