GAC20 definition

GAC20 means granular activated carbon filter beds with an empty-bed contact time of 20 minutes based on average daily flow and a carbon reactivation frequency of every 240 days.
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GAC20 means granular activated carbon filter beds with an empty-bed contact time of twenty minutes based on average daily flow and a carbon reactivation frequency of every two hundred forty days.
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GAC20 means granular activated carbon filter beds with an empty-bed contact time of 20 minutes based on average daily flow and a carbon reactivation frequency of every 240 days. (40 C.F.R. §141.2 (July 1, 2011))
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Examples of GAC20 in a sentence

  • This step is implemented similarly to the “GAC10 + Settled Water Ozone” step except that GAC20 is used instead of GAC10.

  • The following treatment technique requirements need to be added: 40 CFR 141.2 definitions of GAC10 and GAC20, 40 CFR 141.64(a)(2), 40 CFR 141.64(b)(1)(ii), 40 CFR 141.64(b)(2)(ii - ii).

  • The “GAC20” SWAT decision tree step applies to the same plants and is implemented in the same fashion as the “GAC10” step with the following exceptions:• This step applies to plants with an existing GAC system of any size, not just plants with GAC systems characterized as less aggressive than GAC20.

  • The “GAC20 + Raw Water Ozone” step applies to all plants with initial technology level less than or equal to “GAC20 + Raw Water Ozone,” except for:• Softening plants• Small systemsThis step is implemented in the same manner as the “GAC10 + Raw Water Ozone” step, except a GAC20 system is added instead of a GAC10 system.

  • GAC20 was defined as granular activated carbon with an empty bed contact time of 20 minutes and a reactivation or replacement interval of 90 days or longer.

  • The “GAC20 + Chlorine Dioxide” step applies to all plants with initial technology level less than or equal to the “GAC20 + Chlorine Dioxide,” except for:• Plants with ozone in initial process trains (such plants would skip directly to the “GAC20 + Raw Water Ozone” decision tree step) • Softening plants• Small systemsThis step is implemented in the same manner as the “GAC10 + Chlorine Dioxide” step, except a GAC20 system is added instead of a GAC10 system.

  • EPA modeled the following BAT options: enhanced coagulation/ softening with chlorine (the Stage 1 DBPR BAT); enhanced coagulation/ softening with chlorine and no predisinfection; enhanced coagulation and GAC10; enhanced coagulation and GAC20; and enhanced coagulation and chloramines.

  • EXHIBIT DESCRIPTION 2.1 Purchase Agreement dated July 13, 2012 (incorporated by reference to Exhibit 2.1 of our Form 8-K filed September 28, 2012) 2.2 Asset Purchase Agreement between the Company and Screamin’ Hot Florida, LLC and Screamin’ Hot Trinity, LLC, dated April 1, 2014 (incorporated by reference to Exhibit 10.2 of our Form 10-Q filed May 9, 2014).

  • The “GAC20 + UV” step applies to all plants with initial technology level less than or equal to “GAC20 + UV,” except for:• Plants with ozone in initial process trains (such plants would skip directly to the “GAC20 + Raw Water Ozone” decision tree step) • Softening plants• Small systemsThis step is implemented in the same manner as the “GAC10 + UV” step, except a GAC20 system is added instead of a GAC10 system.

  • Based on the large system estimate, EPA believes it is conservative to assume that at least 90% of medium and small systems will be able to achieve the Stage 2B MCLs if they were to apply one of the proposed GAC BATs. EPA assumes that small systems may adopt GAC20 in a replacement mode (with replacement every 240 days) over GAC10 because it may not be economically feasible for some small systems to install and operate an on-site GAC reactivation facility.


More Definitions of GAC20

GAC20 means granular activated car- bon filter beds with an empty-bed contact time of twenty minutes based on average daily flow and a carbon reactiva- tion frequency of every two hundred forty days.
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GAC20 means granular activated carbon filter beds with an empty-bed contact time of 20 minutes based on average daily flow and a carbon reactivation frequency of every 240 days."Governmental entity" means the Commonwealth, a town, city, county, service authority, sanitary district or any other governmental body established under the Code of Virginia, including departments, divisions, boards or commissions.
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GAC20 means granular activated carbon filter beds with an empty-bed contact 838 time of 20 minutes based on average daily flow and a carbon reactivation
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GAC20 means granular activated carbon filter beds with an empty-bed contact time of twenty
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GAC20 means “GAC20” as defined in 40 CFR § 141.2, reprinted in Appendix B.
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