What is TMDL?
The Trash TMDL requires 10% reduction per year on the discharges of trash to the Los Angeles River and Ballona Creek. The City’s strategy involves targeting these high trash-generation areas with institutional controls such as: • Anti-littering Enforcement • Street sweeping • Catch basin cleaning • Abandoned trash pick-ups • Trash Receptacles • Educational anti-littering outreach • Community clean-up programs In addition to the above actions, the City is planning to retrofit approximately 10,000 catch basins, located within the high trash-generation areas, with devices that will prevent trash from entering the storm drain system. The City is also working with Los Angeles County to retrofit about 3,400 County-owned catch basins within these high trash generation areas.
TMDL or Total Maximum Daily Load is the maximum amount of pollutant a water body can assimilate without surpassing the state water quality standard. If a body of water surpasses the water quality standard 10.5% of the time during an assessment period, the water body is placed on Virginia’s Section 303(d) List of Impaired Waters. Are there water bodies designated as “impaired” or TMDL waters in Fauquier County? Yes, among others, Thumb Run, Carter Run, Great Run, and Deep Run are listed on Virginia’s Section 303(d) List of Impaired Waters for violating the fecal coliform standard. Furthermore, these four watersheds have an implementation plan that currently is underway. If you would like to know if you live in an impaired watershed, please contact John Marshall Soil and Water Conservation District at (540) 347-3120 ext. 3. What is a TMDL implementation plan?
A TMDL is a technical analysis that: determines the maximum loading of the pollutant of concern a water body can receive and still both attain and maintain its water quality standards; and allocates this allowable loading to pollutant sources in the watershed. Upon approval by the Commission, this technical analysis must be submitted to EPA for review and approval. TMDL stands for Total Maximum Daily Loads. These projects evaluate stream and lake segments, ultimately determining the amount of pollutant which can be contributed by both point and non-point sources. For more TMDL information read the Clean Water for Texas document produced by the TCEQ.
Total Maximum Daily Load (TMDL) is like a budget for pollution. The Clean Water Act and the EPA require that all states identify water bodies that do not meet, or are not expected to meet, applicable water quality standards for designated uses. These water bodies are listed and prioritized in order to schedule TMDL development. A TMDL study is a technical analysis that determines maximum loadings of a pollutant of concern that a water body can receive and still meet water quality standards and allocates this allowable loading to point and nonpoint pollutant sources in the watershed. Visit the Texas Commission on Environmental Quality (TMDL) website to learn more about TMDLs.
