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12.0 Glossary

Temporary Construction Site Best Management Practices (BMPs): BMPs that are only
temporarily required to address a short-term storm water contamination threat.

Telecommuting: An arrangement in which a worker is at home or in a location other than
the primary place of work, and communicates with the workplace and conducts work via
wireless or telephone lines, using modems, fax machines, or other electronic devices in
conjunction with computers.

Temporary Noise: Noise from a noise source that is not permanent. A temporary noise
source can be considered long-term, as audible noise level increases at the same receptor
that occur for several years.

Tentative Map: The initial map setting forth in detail a proposed land subdivision, which
must comply with the city’s or county’s subdivision and zoning regulations and the State
Subdivision Map Act. The subdivision of land depicted on the tentative map does not take
effect until approval and recordation of the Final Map.

Tertiary Treatment: The treatment of wastewater beyond the secondary or biological
stage. Normally implies the removal of nutrients, such as phosphorous and nitrogen, and a
high percentage of suspended solids.

Therm: The amount of energy necessary to raise 100,000 pounds of water one degree
Fahrenheit.

Thermal Mass: Large quantities of heavy or dense material with a high heat capacity, used
in solar buildings to absorb heat, which is then stored and re-radiated as needed for heating
and cooling.

Thousand Square Feet (TSF): Used in quantifying non-residential land uses, and refers to
building floor area.

Threatened Species: The State of California considers a Threatened species to be one
present in such small numbers throughout its range that it is likely to become an Endangered
Species in the near future in the absence of special protection or management. The CESA
authorizes the CDFW to issue permits authorizing incidental take of Threatened and
Endangered Species.

Threshold of Significance: Criteria for each environmental issue area to assist with
determinations of significance of project impacts.

Title 24 of the California Code of Regulations: Title 24 is part of the California Buildings
Standards Code, the building regulations of California. Part 6 is the Energy Code.

Tonnes: Metric tons.

Topographic Map: A map showing the various topographic features of a given area, such as
hills, valleys, mountains, slope of land surfaces, usually by means of contours or lines
connecting points of equal elevation.

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Draft EIR