Existing water quality definition

Existing water quality means the quality of the receiving water, including chemical, physical, and biological conditions immediately prior to commencement of the proposed activity or that which can be adequately documented to have existed on or after July 1, 1971, whichever is the highest quality.
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Existing water quality means the chemical composition of ground or surface water before initial deposition of waste.
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Existing water quality means the water quality that would exist under critical water quality conditions. Critical water quality conditions include, but are not limited to, conditions of low flow, high water temperature, maximum loading from point source and non-point source discharges, and conditions of acute and chronic effluent toxicity.
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Examples of Existing water quality in a sentence

  • Existing water quality is defined in Table 1 for stream reaches between Hancock, New York and the Delaware Water Gap and in Table 2 for stream reaches between the Delaware Water Gap and Trenton, New Jersey.

  • Existing water quality is defined in terms of (a) an annual or seasonal mean of the available water quality data, (b) two-tailed upper and lower 95 percent confidence limits around the mean, and (c) the 10th and 90th percentiles of the data set from which the mean was calculated.

  • Existing water quality and nonpoint source runoff control technology will be evaluated in the course of the Iowa continuing planning process, and best management practices and limitations on specific water quality parameters will be reviewed and revised from time to time to ensure that the designated water uses and water quality enhancement goals are met.61.2(4) Regulatory mixing zones.

  • Existing water quality and ecology of the site as determined by available data or by trend assessment or baseline surveys.

  • Existing water quality monitoring and research data on surface runoff and subsurface flow need to be analysed to develop models for the quality of water, and its time dependence, that would enter major drainage lines from the initial landform design.

  • Not surprisingly, given this pattern in household growth, there has been a steady downward trend in average household size.

  • Existing water quality of the irrigation water turbid and high in sediment amount, therefore this temporary effect could not be differentiated, unless the sediment amount is measured before and during the cleaning activity.

  • Existing water quality data and provision for future water quality monitoring including any water returned to the waterbasin during the removal of excavated materials.

  • All they need is access to a computer with a microphone and an internet connection.I plan to share negative and positive feedback that I have gotten from profes- sors and students who have used it at my institution, Sewanee: University of the South.

  • Although the opening statement can be waived, as with traditional litigation, it can be an effective tool for each side to re-frame or crystallize the issues and guide the arbitrator as to what their evidence will show.


More Definitions of Existing water quality

Existing water quality means the water quality in a water body at the time a water body was designated for its current level of antidegradation protection, as modified to reflect permitted loadings not actually being discharged on the date of designation, provided that such loadings were contained in issued permits prior to the effective date of the designation. This is the water quality that the Department shall utilize as mean water quality when implementing a watershed approach to water quality management for a particular waterbody.
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Related to Existing water quality

  • Water quality standards means provisions of state or federal law which consist of a designated use or uses for the waters of the Commonwealth and water quality criteria for such waters based upon such uses. Water quality standards are to protect the public health or welfare, enhance the quality of water and serve the purposes of the State Water Control Law (§ 62.1-44.2 et seq. of the Code of Virginia) and the federal Clean Water Act (33 USC § 1251 et seq.).

  • Water quality volume means the volume equal to the first one-half inch of runoff multiplied by the impervious surface of the land development project.

  • National Ambient Air Quality Standards or “NAAQS” means national ambient air quality standards that are promulgated pursuant to Section 109 of the Act, 42 U.S.C. § 7409.

  • Drinking water means water that meets criteria as specified in 40 CFR 141 National Primary Drinking Water Regulations. "Drinking water" is traditionally known as "potable water." "Drinking water" includes the term "water" except where the term used connotes that the water is not potable, such as "boiler water," "mop water," "rainwater," "wastewater," and "nondrinking" water.

  • Underground source of drinking water means an aquifer or its portion:

  • New Jersey Stormwater Best Management Practices (BMP) Manual or “BMP Manual” means the manual maintained by the Department providing, in part, design specifications, removal rates, calculation methods, and soil testing procedures approved by the Department as being capable of contributing to the achievement of the stormwater management standards specified in this chapter. The BMP Manual is periodically amended by the Department as necessary to provide design specifications on additional best management practices and new information on already included practices reflecting the best available current information regarding the particular practice and the Department’s determination as to the ability of that best management practice to contribute to compliance with the standards contained in this chapter. Alternative stormwater management measures, removal rates, or calculation methods may be utilized, subject to any limitations specified in this chapter, provided the design engineer demonstrates to the municipality, in accordance with Section IV.F. of this ordinance and N.J.A.C. 7:8-5.2(g), that the proposed measure and its design will contribute to achievement of the design and performance standards established by this chapter.

  • General air quality operating permit or "general permit" means an air quality operating permit that meets the requirements of ARM 17.8.1222, covers multiple sources in a source category, and is issued in lieu of individual permits being issued to each source.

  • National Pollutant Discharge Elimination System (NPDES) means the national program for issuing, modifying, revoking and reissuing, terminating, monitoring, and enforcing permits and imposing and enforcing pretreatment requirements, under Sections 307, 318, 402, and 405 of CWA. The term includes an approved program.

  • Clean Air Act or “Act” means the federal Clean Air Act, 42 U.S.C. §§ 7401-7671q, and its implementing regulations.

  • Clean water standards, as used in this clause, means any enforceable limitation, control, condition, prohibition, standard, or other requirement promulgated under the Water Act or contained in a permit issued to a discharger by the Environmental Protection Agency or by a State under an approved program, as authorized by Section 402 of the Water Act (33 U.S.C. § 1342), or by local government to ensure compliance with pre-treatment regulations as required by Section 307 of the Water Act (33 U.S.C. § 1317).

  • Spatial Planning and Land Use Management Act means the Spatial Planning and Land Use Management Act, 2013 (Act 16 of 2013);

  • Stormwater runoff means water flow on the surface of the ground or in storm sewers, resulting from precipitation.