3745-3-04 Prohibited discharges.

(A) Pollutants introduced into POTWs by an industrial user shall not pass through the POTW or interfere with the operation or performance of the POTW. These general prohibitions and the specific prohibitions in paragraph (B) of this rule 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 one hundred forty degrees F or sixty degrees C using the test methods specified in 40 C.F.R. 261.21 ;

(2) Pollutants that will cause corrosive structural damage to the POTW, but in no case discharges with pH lower than 5.0, unless the POTW is specifically designed to accommodate such discharges;

(3) Solid or viscous pollutants in amounts that will cause obstruction to the flow in sewers, or other interference with the operation of the POTW;

(4) Any pollutant, including oxygen demanding pollutants, released in a discharge at a flow rate and/or pollutant concentration as to cause interference with the POTW;

(5) Heat in amounts that will inhibit biological activity in the POTW treatment plant resulting in interference or causing damage, but in no case heat in such quantities that the temperature exceeds forty degrees C (one hundred four degrees F) at the POTW treatment plant unless the director, upon request of the POTW, approves an alternate temperature limit;

(6) Petroleum oil, nonbiodegradable cutting oil, or products of mineral oil origin in amounts that will cause interference or pass through;

(7) Pollutants that result in the presence of toxic gases, vapors, or fumes within the POTW in a quantity that may cause acute worker health and safety problems; or

(8) Any trucked or hauled pollutants, except at discharge points designated by the POTW.

(C) No industrial user shall discharge any pollutant in violation of applicable pretreatment standards.

(D) The director may, in cases where pollutants contributed by industrial user(s) may result or have resulted in interference or pass through, and such violation is likely to recur, require POTWs that are not required to develop a pretreatment program pursuant to paragraph (A) of rule 3745-3-03 of the Administrative Code, to develop and enforce specific effluent limits for industrial user(s), and all other users, as appropriate, that, together with appropriate changes in the POTW treatment plant’s facilities or operation, are necessary to ensure renewed and continued compliance with the POTW’s NPDES permit, or sludge use or disposal practices.

[Comment: “C.F.R.” refers to the federal “Code of Federal Regulations,” which can generally be found in public libraries, and can be viewed electronically online at http://www.gpoaccess.gov/cfr/index.html and purchased by writing to: “Superintendent of Documents. Attn: New Orders, PO Box 371954, Pittsburgh, PA 15250-7954.”]

Effective: 02/01/2007

R.C. 119.032 review dates: 10/12/2006 and 02/01/2012

Promulgated Under: 119.03

Statutory Authority: 6111.03(Q), 6111.042

Rule Amplifies: 6111.03(Q), 6111.042

Prior Effective Dates: 11/1/1984 (Emer.), 1/31/1985, 2/28/1990, 4/15/1991, 5/21/2001