3745-81-12 Maximum contaminant levels and best available technologies for organic contaminants.

(A) The following maximum contaminant levels for total trihalomethanes and haloacetic acids (five) apply to community public water systems and nontransient noncommunity public water systems that supply water treated with any combination of chlorine, chloramines, chorine dioxide or ozone. Compliance with the maximum contaminant levels of total trihalomethanes and haloacetic acids (five) is calculated according to rule 3745-81-24 of the Administrative Code. The director identifies the following as the best available technology(BAT), for achieving compliance with the maximum contaminant levels for organic disinfection byproducts identified in this table until the applicable compliance date identified in paragraph (D)(1) of rule 3745-81-24 of the Administrative Code:

See Table at

http://www.registerofohio.state.oh.us/pdfs/3745/0/81/3745-81-12_PH_FF_A_RU_20091204_0807.pdf

(B) The director identifies the following as the best available technology (BAT), for achieving compliance with the maximum contaminant levels for organic disinfection byproducts identified in this table beginning on the applicable compliance date identified in paragraph (D)(1) of rule 3745-81-24 of the Administrative Code:

See Table at

http://www.registerofohio.state.oh.us/pdfs/3745/0/81/3745-81-12_PH_FF_A_RU_20091204_0807.pdf

(C) The director identifies the following as the best technology, treatment techniques, or other means available for achieving compliance with the maximum contaminant levels for TTHM and HAA5 identified in this rule for consecutive systems and applies only to the disinfected water that consecutive systems buy or otherwise receive:

See Table at

http://www.registerofohio.state.oh.us/pdfs/3745/0/81/3745-81-12_PH_FF_A_RU_20091204_0807.pdf

(D) The following maximum contaminant levels (MCLs) apply to community public water systems and nontransient noncommunity public water systems. The associated best available technologies (BATs), designated as GAC for granular activated carbon and PTA for packed-tower aeration, identify the best technology, treatment techniques, or other means available for achieving compliance with the stated maximum contaminant levels. The director may determine that a public water system shall apply best available technology in order to reduce the level of a contaminant to below its maximum contaminant level.

See Table at

http://www.registerofohio.state.oh.us/pdfs/3745/0/81/3745-81-12_PH_FF_A_RU_20091204_0807.pdf

(E) The following maximum contaminant levels apply to community public water systems and nontransient noncommunity water systems. The associated best available technologies (BATs), designated as GAC for granular activated carbon, PTA for packed-tower aeration, and OX for oxidation with chlorine or ozone, identify the best technology, treatment technique, or other means available for achieving compliance with the stated maximum contaminant levels. The director may determine that a public water system shall apply best available technology in order to reduce the level of a contaminant to below its maximum contaminant level.

See Table at

http://www.registerofohio.state.oh.us/pdfs/3745/0/81/3745-81-12_PH_FF_A_RU_20091204_0807.pdf

Effective: 01/01/2010
R.C. 119.032 review dates: 09/18/2009 and 01/01/2015
Promulgated Under: 119.03
Statutory Authority: 6109.03 , 6109.04
Rule Amplifies: 6109.04
Prior Effective Dates: 12/27/78, 8/24/81, 5/22/89, 9/13/93, 1/1/02