Constituents of Potential Concern definition

Constituents of Potential Concern means constituents detected in a medium that are selected to be addressed in the risk assessment process because contact with humans may result in adverse effects.
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Constituents of Potential Concern. (COPC) means chemicals from hazardous waste and hazardous waste constituents that are potentially site related and have data of quality for use in site screening or a site-specific risk assessment. The facility should compile a list of COPCs for each release site based on existing sampling data, waste analysis reports, etc.
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Examples of Constituents of Potential Concern in a sentence

  • Volatile organic compounds (“VOCs,” including perchloroethene, trichloroethene, 1,2-dichloroethene, benzene, and toluene), semi-volatile organic compounds (“SVOCs,” including naphthalene, benzo(a)pyrene, and dioxins), polychlorinated biphenyls (“PCBs”), metals, total petroleum hydrocarbons (“TPHs”), munitions constituents, and munitions and explosives of concern were used or generated as part of the DoD’s operations and are Constituents of Potential Concern (“COPCs”) at Select Sites.

  • Screening Rationale for Ground Water Constituents of Potential Concern forHuman Health 82.

  • The SLRA included the following evaluation process: Identification of Constituents of Potential Concern (COPCs): Compounds that are present at concentrations at or above the EPA Regional Screening Levels (RSLs) set at a target cancer risk of 1E-6 or target non-cancer Hazard Quotient (HQ) of 0.1 were identified as COPCs to be included in the SLRA.

  • FBQ Maximum Concentrations of Constituents of Potential Concern 2-4Table 3-1.

  • The delineation of Constituents of Potential Concern (COPCs) is currently unknown and ongoing.

  • Consistent with standard risk assessment practice and EPA guidance, this PBRA includes the following components:  Data Evaluation and Selection of Constituents of Potential Concern (COPC): The analytical data used in the PBRA are summarized in this report.

  • Remaining constituents are further evaluated in Section 3.2.2.3.2.2 Evaluation-Level Hazard Quotient Development Per Steps E and F of the “Ecological Constituents of Potential Concern Selection Process” protocol (WSRC 1999d), evaluation-level HQs are based on exposure doses that are calculated based on receptor-specific input parameters and average concentrations.

  • Constituents of Potential Concern CPCs are those chemicals and radionuclides in environmental media that are retained for quantitative evaluation in the baseline risk assessment.

  • Table 3-3 Default Screening Values (DSVs) for Radiological Constituents of Potential Concern (RCOPCs) (based on Table 1 in the SSSB Final Status Survey Summary) IsotopeSoil DSV(pCi/g)Surface DSV(dpm/100 cm2)C-14123,700,000Fe-5510,0004,500,000Co-603.87,100Ni-632,1001,800,000Cs-1371128,000 APTIM has stated that the unrestricted release criteria are the NRC DSVs with an as low as reasonably achievable (ALARA) goal of no statistical difference between baseline and post dismantlement and disposal measurements.

  • This allowed time for initial PA calculations to be conducted to identify specific Constituents of Potential Concern (COPCs) on which to initially focus to confirm assumptions for chemical properties (e.g., Kds and diffusion coefficients).

Related to Constituents of Potential Concern

  • In-stream Waste Concentration or "(IWC)" means the concentration of a discharge in the receiving water after mixing has occurred in the allocated zone of influence.

  • Material of Environmental Concern means and includes pollutants, --------------------------------- contaminants, hazardous wastes, and toxic, radioactive, caustic or otherwise hazardous substances, including petroleum, its derivatives, by-products and other hydrocarbons, or any substance having any constituent elements displaying any of the foregoing characteristics.

  • Hazardous waste constituent means a constituent that caused the hazardous waste to be listed in Subpart D of 35 Ill. Adm. Code 721, or a constituent listed in 35 Ill. Adm. Code 721.124.

  • Pollutants of concern or "POC" means total nitrogen, total phosphorus, and total suspended solids.

  • Materials of Environmental Concern any gasoline or petroleum (including crude oil or any fraction thereof) or petroleum products or any hazardous or toxic substances, materials or wastes, defined or regulated as such in or under any Environmental Law, including asbestos, polychlorinated biphenyls and urea-formaldehyde insulation.

  • Residual radioactivity means radioactivity in structures, materials, soils, groundwater, and other media at a site resulting from activities under the licensee's control. This includes radioactivity from all licensed and unlicensed sources used by the licensee, but excludes background radiation. It also includes radioactive materials remaining at the site as a result of routine or accidental releases of radioactive material at the site and previous burials at the site, even if those burials were made in accordance with the provisions of Rule R313-15.

  • Small Diversity business concern means a small business concern that is at least fifty-one (51) percent unconditionally owned by one or more individuals who are both socially and economically diverse, or a publicly owned business that has at least fifty-one (51) percent of its stock unconditionally owned by one or more socially and economically diverse individuals and that has its management and daily business controlled by one or more such individuals. This term also means a small business concern that is at least fifty-one (51) percent unconditionally owned by an economically diverse Indian tribe or Native Hawaiian Organization, or a publicly owned business that has at least fifty-one (51) percent of its stock unconditionally owned by one of these entities, that has its management and daily business controlled by members of an economically diverse Indian tribe or Native Hawaiian organization.

  • High global warming potential hydrofluorocarbons means any hydrofluorocarbons in a particular end use for which EPA’s Significant New Alternatives Policy (SNAP) program has identified other acceptable alternatives that have lower global warming potential. The SNAP list of alternatives is found at 40 CFR Part 82 subpart G with supplemental tables of alternatives available at (http://www.epa.gov/snap/).

  • Area of concern or “AOC” shall mean any area that has had a probable release of a hazardous waste or hazardous constituents and that is determined by the Department to pose a current or potential threat to human health or the environment.

  • Material Environmental Amount an amount payable by the Borrower and/or its Subsidiaries in excess of $5,000,000 for remedial costs, compliance costs, compensatory damages, punitive damages, fines, penalties or any combination thereof.

  • Processes with Significant Environmental Aspects means the Equipment which, during regular operation or if not properly operated or maintained, may cause or are likely to cause an adverse effect.

  • Natural radioactivity means radioactivity of naturally occurring nuclides.

  • Residual disinfectant concentration (“C” in CT cal- culations) means the concentration of disinfectant measured in mg/l in a representative sample of water.

  • Geothermal fluid means water in any form at temperatures greater than 120

  • Business concern means any corporation, company, limited liability company, partnership, joint venture, trust, unincorporated association or any other form of association.

  • Deportation or forcible transfer of population means forced displacement of the persons concerned by expulsion or other coercive acts from the area in which they are lawfully present, without grounds permitted under international law;

  • Hazardous financial condition means that, based on its present or reasonably anticipated financial condition, a risk retention group, although not yet financially impaired or insolvent, is unlikely to be able:

  • HUBZone small business concern means a small business concern that appears on the List of Qualified HUBZone Small Business Concerns maintained by the Small Business Administration.

  • Radioactive substance means a substance that emits ionizing

  • Distinguishable from background means that the detectable concentration of a radionuclide is statistically different from the background concentration of that radionuclide in the vicinity of the site or, in the case of structures, in similar materials using adequate measurement technology, survey, and statistical techniques.

  • median concentration means that half of the homes in a county are expected to be below this value and half to be above it. All houses contain some radon, and a few houses will contain much more than the median concentration. The only way to accurately assess long-term exposure to radon in a specific house is through long-term testing (sampling the indoor air for a year or more). The EPA recommends that all homes be tested for radon. Columbia University's "Radon Project" website offers help to homeowners in assessing the cost vs. benefit of testing a specific house for radon or modifying it for radon reduction (see http://www.stat.columbia.edu/~radon/).

  • Total Tangible Assets means, as of any date, (a) the aggregate amount of the assets (other than intangible assets, goodwill and deferred tax assets) of the Group, as disclosed on the consolidated statement of financial position in the most recent Accounts of the Group, minus (b) the lesser of (i) the aggregate value of all Project Assets subject to any Lien securing any Limited Recourse Indebtedness and (ii) the aggregate principal amount of Limited Recourse Indebtedness, in each case, as reflected in (or derived from) the most recent Accounts of the Group, plus (c) the net cash proceeds received by the Parent Guarantor from any share capital issuance by the Parent Guarantor consummated after the date of the most recent balance sheet included in such Accounts and on or prior to such date.

  • Total tetrahydrocannabinol means the same as that term is defined in § 3.2-4112.

  • Material Environmental Liabilities means Environmental Liabilities exceeding $500,000 in the aggregate.

  • PCBs means polychlorinated biphenyls.

  • Small disadvantaged business concern means a small business concern that represents, as part of its offer that—