Total maximum daily load definition

Total maximum daily load or "TMDL" means the sum of the individual wasteload allocations for point sources, load allocations (LAs) for nonpoint sources, natural background loading and a margin of safety. TMDLs can be expressed in terms of either mass per time, toxicity, or other appropriate measure. The TMDL process provides for point versus nonpoint source trade-offs.
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Total maximum daily load or "TMDL" means the amount of pollutants specified as a function of one or more water quality parameters, that can be discharged per day into a water quality limited segment and still ensure attainment of the applicable water quality standard.
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Total maximum daily load or "TMDL" means a calculation of the maximum amount of a pollutant that a waterbody can receive and still meet water quality standards and an allocation of that amount to the pollutant's sources. A TMDL includes wasteload allocations (WLAs) for point source discharges, and load allocations (LAs) for nonpoint sources or natural background or both, and must include a margin of safety (MOS) and account for seasonal variations.
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Examples of Total maximum daily load in a sentence

  • Total maximum daily load (TMDL) is the maximum amount of a pollutant that a body of water can contain and still achieve water quality standards.

  • Total maximum daily load (TMDL) requirements or a wasteload allocation is developed and approved by the Department and/or USEPA for incorporation in this permit.

  • Total maximum daily load numeric targets are a quantitative value or values used to measure whether or not the applicable water quality standard is attained.

  • For waterbodies impairedby both point and nonpoint sources, wasteload allocations may reflect antici- pated or expected reductions of pollutants from other sources if those anticipated or ex- pected reductions are supported by reason- able assurance that they will occur.(h) Total maximum daily load (TMDL).

  • Total maximum daily load" or "TMDL" means the sum of the existing and/oror projected point source, nonpoint source, and background loads for a pollutant to a specified watershed, water body, or water body segment.


More Definitions of Total maximum daily load

Total maximum daily load or “TMDL” means the maximum capacity of a surface water to assimilate a pollutant as established by the commissioner, including pollutants contributed by point and non-point sources and a margin of safety.
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Total maximum daily load or TMDL, means the sum of the individual wasteload allocations for point sources and the load allocations for nonpoint sources and natural background as defined and applied in Chapter 62-303, F.A.C.
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Total maximum daily load or "TMDL" means the sum of the individual waste load allocations for
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Total maximum daily load means the same as in the federal Water Pollution Control Act.
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Total maximum daily load or "TMDL" means the sum of the daily individual wasteload allocations for point sources and load allocations for nonpoint sources and natural background minus the sum of a specified margin of safety and any capacity reserved for growth. A TMDL sets and allocates the maximum daily amount of a pollutant that may be introduced into a waterbody and still assure attainment and maintenance of water quality standards.
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Total maximum daily load or “TMDL” means the sum of the individual wasteload allocations (WLAs) for point sources and load allocations (LAs) for nonpoint sources and natural background. If a receiving water has only one point source discharger, the TMDL is the sum of that point source WLA plus the LAs for any nonpoint sources of pollution and natural background sources, tributaries, or adjacent segments. TMDLs can be expressed in terms of either mass per time, toxicity, or other appropriate measure.
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Total maximum daily load. Or "TMDL" means the amount of a given pollutant that may be discharged to a waterbody from point, nonpoint and natural background sources and still allow attainment or maintenance of the applicable narrative and numerical water quality standards. A "TMDL" is the sum of the individual wasteload allocations or WLAs for point sources and load allocations or LAs for nonpoint sources of pollution and natural background. A “TMDL” may include a reasonable margin of safety (MOS) to account for uncertainties regarding the relationship between mass loading and resulting water quality. In simplistic terms, a "TMDL" attempts to match the strength, location and timing of pollution sources within a watershed with the inherent ability of the receiving water to assimilate the pollutant without adverse impact.
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