Toxicity Reduction Evaluation definition

Toxicity Reduction Evaluation. (TRE) means a site-specific study conducted in a step-wise process to identify the causative agents of effluent toxicity, isolate the source of the toxicity, evaluate the effectiveness of the toxicity control options, and then confirm the reduction in effluent toxicity after the control measures are put in place.
Sample 1Sample 2Sample 3
Toxicity Reduction Evaluation means an investigation conducted to identify the causative agents of wastewater toxicity, isolate the source(s), determine the effectiveness of control options, implement the necessary control measures and then confirm the reduction in toxicity.
Sample 1

Examples of Toxicity Reduction Evaluation in a sentence

  • This permit may be reopened to require further WET testing studies, Toxicity Reduction Evaluation (TRE) and/or effluent limits if WET testing data submitted to the Department shows toxicity in the permittee's discharge.

  • A Toxicity Reduction Evaluation is an investigation intended to determine those actions necessary to achieve compliance with water quality-based effluent limits by reducing an effluent's toxicity to an acceptable level.

  • Part I.D.1. of this permit describes the testing procedures and Part I.D.2. describes the Toxicity Reduction Evaluation (TRE) which is only required if the effluent demonstrates toxicity in two (2) consecutive toxicity tests as described in Part I.D.1.f.

  • This permit may be reopened to require further biomonitoring studies, Toxicity Reduction Evaluation (TRE) and/or effluent limits if biomonitoring data submitted to the Department shows toxicity in the permittee's discharge.

  • If the results of these tests indicate a reasonable potential to cause an instream toxic impact, the Secretary may require additional WET testing, establish a WET limit, or require a Toxicity Reduction Evaluation.

  • The permittee shall initiate the Toxicity Reduction Evaluation (TRE) requirements as specified in Item 5 of this section when any two of three consecutive monthly toxicity tests exhibit significant lethal effects at or below the critical dilution.

  • As a result of a Toxicity Reduction Evaluation (TRE), this Order may be reopened to include a chronic toxicity limitation, a new acute toxicity limitation, and/or a limitation for a specific toxicant identified in the TRE.

  • Within 90 days of the permit effective date, the permittee shall prepare and submit to the permitting authority a copy of its Initial Investigation Toxicity Reduction Evaluation (TRE) Work Plan (1-2 pages) for review.

  • As a result of a Toxicity Reduction Evaluation (TRE), this Order may be reopened to include a numeric chronic toxicity limitation, a new acute toxicity limitation, and/or a limitation for a specific toxicant identified in the TRE.

  • Additionally, the monthly discharger self-monitoring reports shall contain an updated chronology of chronic toxicity test results expressed in TUc, and organized by test species, type of test (survival, growth or reproduction), and monitoring frequency, i.e., either quarterly, monthly, accelerated, or Toxicity Reduction Evaluation (TRE).

Related to Toxicity Reduction Evaluation

  • Clinical evaluation means a systematic and planned process to continuously generate, collect, analyse and assess the clinical data pertaining to a device in order to verify the safety and performance, including clinical benefits, of the device when used as intended by the manufacturer;

  • Site evaluation means a comprehensive analysis of soil and site conditions for an OWTS.

  • Annual summative evaluation rating means an annual evaluation rating that is based on appraisals of educator practice and student performance, and includes all measures captured in a teacher’s evaluation rubric. The four summative performance categories are ineffective, partially effective, effective, and highly effective.

  • Emission Reduction Credits or “ERC(s)” means emission reductions that have been authorized by a local air pollution control district pursuant to California Division 26 Air Resources; Health and Safety Code Sections 40709 and 40709.5, whereby such district has established a system by which all reductions in the emission of air contaminants that are to be used to offset certain future increases in the emission of air contaminants shall be banked prior to use to offset future increases in emissions.

  • Evaluation Criteria means the criteria set out under the clause 27 (Evaluation Process) of this Part C, which includes the Qualifying Criteria, Functional Criteria and Price and Preferential Points Assessment.

  • Maximum Concentration Level Assessment means the Maximum Concentration Level Assessment for the purposes of a Basic Comprehensive Certificate of Approval, described in the Basic Comprehensive User Guide, prepared by a Toxicologist using currently available toxicological information, that demonstrates that the concentration at any Point of Impingement for a Compound of Concern that does not have a Ministry Point of Impingement Limit is not likely to cause an adverse effect as defined by the EPA. The concentration at Point of Impingement for a Compound of Concern must be calculated in accordance with O. Reg. 419/05.

  • Performance evaluation means evaluation of work and program participation as well as other areas of behavior.

  • Independent educational evaluation means an evaluation conducted by a qualified examiner who is not employed by the public agency responsible for the education of the child in question.

  • S&P CDO Monitor Test A test that will be satisfied on any date of determination (following receipt, at any time on or after the S&P CDO Monitor Election Date, by the Issuer and the Collateral Administrator of the Class Break-even Default Rates for each S&P CDO Monitor input file (in accordance with the definition of “Class Break-even Default Rate”)) if, after giving effect to a proposed sale or purchase of an additional Collateral Obligation, the Class Default Differential of the Highest Ranking Class of the Proposed Portfolio is positive. The S&P CDO Monitor Test will be considered to be improved if the Class Default Differential of the Proposed Portfolio that is not positive is greater than the corresponding Class Default Differential of the Current Portfolio.

  • Busy Line Verification (BLV means a service whereby an End User requests an operator to confirm the busy status of a line.

  • Clinical review criteria means the written screening procedures, decision abstracts, clinical protocols, and practice guidelines used by a health carrier to determine the necessity and appropriateness of health care services.

  • Summative evaluation means the comprehensive, end-of-cycle appraisal and shall incorporate the results of the minimum required observations, any additional observations, and required component-level data. At the discretion of the Evaluator, it may also include additional announced or unannounced observation data beyond the required observation data provided by other Credentialed Observers.

  • Critical Test Concentration or "(CTC)" means the specified effluent dilution at which the Permittee is to conduct a single-concentration Aquatic Toxicity Test.

  • Level IV Pricing applies on any day on which (i) the Borrower’s long-term debt is rated BBB+ or higher by S&P or Baa1 or higher by Moody’s and (ii) none of Level I Pricing, Level II Pricing or Level III Pricing applies.

  • Yearly (1/Year) sampling frequency means the sampling shall be done in the month of September, unless specifically identified otherwise in the effluent limitations and monitoring requirements table.

  • Semi-annual (2/Year) sampling frequency means the sampling shall be done during the months of June and December, unless specifically identified otherwise.

  • Corrective Measure means a measure as defined in Article 3, point 16, of Regulation (EU) 2019/1020;

  • Locational Deliverability Area Reliability Requirement means the projected internal capacity in the Locational Deliverability Area plus the Capacity Emergency Transfer Objective for the Delivery Year, as determined by the Office of the Interconnection in connection with preparation of the Regional Transmission Expansion Plan, less the minimum internal resources required for all FRR Entities in such Locational Deliverability Area.

  • Communicable disease means an illness caused by an infectious agent or its toxins that occurs through the direct or indirect transmission of the infectious agent or its products from an infected individual or via an animal, vector or the inanimate environment to a susceptible animal or human host.

  • Yearly (1/Year) sampling frequency means the sampling shall be done in the month of September, unless specifically identified otherwise in the effluent limitations and monitoring requirements table.

  • Lowest achievable emission rate (LAER) means for any source, that rate of emissions which reflects the most stringent emission limitation which is contained in the implementation plan of any State for such class or category of source, unless the owner or operator of the proposed source demonstrates that such limitations are not achievable, or the most stringent emission limitation which is achieved in practice by such class or category of source, whichever is more stringent. In no event shall the application of this term permit a proposed new or modified source to emit any pollutant in excess of the amount allowable under applicable New Source Standards of Performance.

  • Semi-annual (2/Year) sampling frequency means the sampling shall be done during the months of June and December, unless specifically identified otherwise.

  • Elevated blood lead level means a level of lead in blood that is any of the following:

  • EPP test Means one EPP command sent to a particular “IP address” for one of the EPP servers. Query and transform commands, with the exception of “create”, shall be about existing objects in the Registry System. The response shall include appropriate data from the Registry System. The possible results to an EPP test are: a number in milliseconds corresponding to the “EPP command RTT” or undefined/unanswered.

  • Instantaneous flow measurement means the flow measured during the minimum time required for the flow-measuring device or method to produce a result in that instance. To the extent practical, instantaneous flow measurements coincide with the collection of any grab samples required for the same sampling period so that together the samples and flow are representative of the discharge during that sampling period.

  • Start-Up Testing means the completion of applicable required factory and start-up tests as set forth in Exhibit C.