Dilution Attenuation Factor definition

Dilution Attenuation Factor or "DAF" means a unitless number greater than or equal to unity and represents the ratio of dissolved phase concentration at a downgradient location to the concentration at an upgradient location. It represents the reduction in concentration due to the combined influence of several factors (diffusion, dispersion, adsorption, decay, volatilization). It is applicable for all media, but is most commonly used for the unsaturated and saturated zones. DAF is generally estimated using a fate and transport model or based on site-specific data.
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Dilution Attenuation Factor means the ratio of the contaminant concentration in soil leachate to the concentration in groundwater at the receptor point.
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Examples of Dilution Attenuation Factor in a sentence

  • Tyco petitioned the EPA to exclude its F006 waste because Tyco does not believe that the waste meets the criteria of the listing.Tyco claims that its F006 waste is nothazardous because the constituents of concern are either present at lowmaximum estimated waste volume to Method 1320,1 to evaluate the long-term determine a Dilution Attenuation Factor 2 ‘‘Wastewater treatment sludges from(DAF) from a table of waste volumes and DAFs previously calculated by the EPACML model.

  • Soil 30247510samples results showed contamination below the Dilution Attenuation Factor of 60 µg/kg.

  • EPA converted the 500 tons to a waste volume of 590 cubic yards, by using the density of water for the density of the sludge.While the sludge is certainly more dense than water, using the lower density results in a higher value for the waste volume, and a lower, more conservative, Dilution Attenuation Factor (DAF).

  • The SPLP tests results (Table 10.2.1) were compared to values consisting of applying a Dilution Attenuation Factor (DAF) of 20 times the Maximum Acceptable Value (MAV) listed in the New Zealand Drinking Water Standards (MoH, 2008).

  • If no standard was available in South Africa then the limits given by the WHO or other appropriate drinking water standards were used.• LCT1: Where possible, the LCT1 values were derived from the lowest value of the standard for human health effects listed for drinking water (LCT0) in South Africa by multiplying with a Dilution Attenuation Factor (DAF) of 50 as proposed by the Australian State of Victoria, June 2009.

  • This value of 100 for the correction is consistent with the logic used by EPA in its Dilution Attenuation Factor (DAF) approach for EP Toxicity and TCLP.

  • The methodology presented in the Technical Support Document utilizes the site-specific Kd with a Dilution Attenuation Factor (DAF).

  • Dilution and attenuation are often expressed by a means of a Dilution Attenuation Factor (DAF).

  • The DAF number is the Dilution Attenuation Factor, and accounts for natural processes that reduce contaminant concentrations in the subsurface.The adopted soil criteria are shown in the attached Table 1 at the end of this report.

  • The RSL calculators use a model of leaching which does not consider distance or degradation, but instead allows a single Dilution Attenuation Factor (DAF) to modify expected groundwater concentrations at an exposure point such as a well.

Related to Dilution Attenuation Factor

  • Dilution Factors means, without duplication, with respect to any period, the aggregate amount of all deductions, credit memos, returns, adjustments, allowances, bad debt write-offs and other non-cash credits which are recorded to reduce accounts receivable in a manner consistent with current and historical accounting practices of the Borrowers.

  • Loss Factor means the scaling factor determined in accordance with clause 6 and applied by the reconciliation manager to volumes of electricity measured or estimated in respect of ICPs on the Network, in order to reflect the impact of the ICP on Losses within the Network;

  • Inflation Factor means a number determined for each tax year by dividing the consumer price

  • Required Accumulation Factor Number shall be equal to a fraction, rounded upwards to the nearest whole number, the numerator of which is one and the denominator of which is equal to the lowest monthly principal payment rate on the Accounts, expressed as a decimal, for the three months preceding the date of such calculation.

  • Dilution Volatility Component means the product (expressed as a percentage) of (i) the difference between (a) the highest three (3)-month rolling average Dilution Ratio over the past 12 Calculation Periods and (b) the Adjusted Dilution Ratio, and (ii) a fraction, the numerator of which is equal to the amount calculated in (i)(a) of this definition and the denominator of which is equal to the amount calculated in (i)(b) of this definition.

  • S&P Volatility Factor means 277% or such other potential dividend rate increase factor as S&P advises the Corporation in writing is applicable.

  • Class Factor As to any date of determination and any Combinable Class, the then current Class Factor for the Related REMIC Class. As to any date of determination and any RCR Class, a fraction the numerator of which is the sum of the then current Class Balances of

  • emission factor means the average emission rate of a greenhouse gas relative to the activity data of a source stream assuming complete oxidation for combustion and complete conversion for all other chemical reactions;

  • Stress Factor means 2.25.

  • Limited Indexation Factor means, in respect of a Limited Indexation Month or Limited Indexation Date, as the case may be, the ratio of the Index Figure applicable to that month or date, as the case may be, divided by the Index Figure applicable to the month or date, as the case may be, twelve months prior thereto, provided that (a) if such ratio is greater than the Maximum Indexation Factor specified in the relevant Final Terms, it shall be deemed to be equal to such Maximum Indexation Factor and (b) if such ratio is less than the Minimum Indexation Factor specified in the relevant Final Terms, it shall be deemed to be equal to such Minimum Indexation Factor;

  • Conversion Factor means 1.0, provided that in the event that the General Partner (i) declares or pays a dividend on its outstanding REIT Shares in REIT Shares or makes a distribution to all holders of its outstanding REIT Shares in REIT Shares, (ii) subdivides its outstanding REIT Shares, or (iii) combines its outstanding REIT Shares into a smaller number of REIT Shares, the Conversion Factor shall be adjusted by multiplying the Conversion Factor by a fraction, the numerator of which shall be the number of REIT Shares issued and outstanding on the record date for such dividend, distribution, subdivision or combination (assuming for such purposes that such dividend, distribution, subdivision or combination has occurred as of such time), and the denominator of which shall be the actual number of REIT Shares (determined without the above assumption) issued and outstanding on such date and, provided further, that in the event that an entity other than an Affiliate of the General Partner shall become General Partner pursuant to any merger, consolidation or combination of the General Partner with or into another entity (the “Successor Entity”), the Conversion Factor shall be adjusted by multiplying the Conversion Factor by the number of shares of the Successor Entity into which one REIT Share is converted pursuant to such merger, consolidation or combination, determined as of the date of such merger, consolidation or combination. Any adjustment to the Conversion Factor shall become effective immediately after the effective date of such event retroactive to the record date, if any, for such event; provided, however, that if the General Partner receives a Notice of Redemption after the record date, but prior to the effective date of such dividend, distribution, subdivision or combination, the Conversion Factor shall be determined as if the General Partner had received the Notice of Redemption immediately prior to the record date for such dividend, distribution, subdivision or combination.

  • Load factor means the percentage of aircraft seats actually occupied on a flight (RPMs divided by ASMs). “NMB” means the National Mediation Board.

  • Dilution Percentage means the gross amount of all returns, allowances, discounts, credits, write-offs and similar items relating to Borrower's Accounts computed as a percentage of Borrower's gross sales, calculated on a ninety (90) day rolling average.

  • Generator to Load Distribution Factor or “GLDF” shall mean a generator’s impact on a Flowgate while serving load in that generator’s Balancing Authority Area.

  • Leverage Factor means the leverage factor in respect of a Series of ETP Securities as specified in the relevant Final Terms.

  • Generator Forced Outage means an immediate reduction in output or capacity or removal from service, in whole or in part, of a generating unit by reason of an Emergency or threatened Emergency, unanticipated failure, or other cause beyond the control of the owner or operator of the facility, as specified in the relevant portions of the PJM Manuals. A reduction in output or removal from service of a generating unit in response to changes in market conditions shall not constitute a Generator Forced Outage.

  • Dilution Horizon Ratio means, as of any Cut-off Date, a ratio (expressed as a decimal), computed by dividing (i) the aggregate sales generated by the Originators during the Calculation Period ending on such Cut-Off Date, by (ii) the Net Pool Balance as of such Cut-Off Date.

  • Required Reserve Factor Floor means, for any Calculation Period, the sum (expressed as a percentage) of (a) 28.00% plus (b) the product of the Adjusted Dilution Ratio and the Dilution Horizon Ratio, in each case, as of the immediately preceding Cut-Off Date.

  • Share Dilution Amount means the increase in the number of diluted shares outstanding (determined in accordance with GAAP applied on a consistent basis, and as measured from the date of the Issuer’s most recent consolidated financial statements prior to the Signing Date) resulting from the grant, vesting or exercise of equity-based compensation to employees and equitably adjusted for any stock split, stock dividend, reverse stock split, reclassification or similar transaction.

  • Weighting factor wT for an organ or tissue (T) means the proportion of the risk of stochastic effects resulting from irradiation of that organ or tissue to the total risk of stochastic effects when the whole body is irradiated uniformly. For calculating the effective dose equivalent, the values of wT are:

  • Average Monthly Limit means the maximum allowable "Average Monthly Concentration" as defined in Section 22a-430-3(a) of the RCSA when expressed as a concentration (e.g. mg/l); otherwise, it means "Average Monthly Discharge Limitation" as defined in Section 22a-430-3(a) of the RCSA.

  • Capacity Utilization Factor or “CUF” shall have the same meaning as provided in CERC (Terms and Conditions for Tariff determination from Renewable Energy Sources) Regulations, 2009 as amended from time to time; However, for avoidance of any doubt, it is clarified that the CUF shall be calculated on the Contracted Capacity; In any Contract Year, if ‘X’ MWh of energy has been metered out at the Delivery Point for ‘Y’ MW Project capacity, CUF= (X MWh/(Y MW*8766)) X100%; Declared CUF for this Project shall be % (to be revised as applicable).

  • Grade point average or "GPA" means the grade point average earned by an eligible student and reported by the high school or participating institution in which the student was enrolled based on a scale of 4.0 or its equivalent if the high school or participating institution that the student attends does not use the 4.0 grade scale;

  • Maximum contaminant level means the maximum permissible level of a contaminant in water which is delivered to any user of a public water system.

  • Accumulation Period Factor means, for any Collection Period, a fraction with:

  • Power Factor means the ratio of usage power measured in kW to total power measured in kVA;