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Passive locating uses signals that occur naturally on some utility lines. This method often fails to locate 60% or so of utility lines, [citation needed] and misidentifying utilities is an associated risk. Active locating, on the other hand, is more accurate. It makes use of signals that the locators generate through a transmitter.
At first, utility companies generally served their own system load demand by building local power generation facilities within their systems. Social, economic, and ecological influences later led to new arrangements where a utility company might enter into long-term power purchase or sale agreements with neighboring utility companies, or locate ...
Subsurface utility engineering (SUE) refers to a branch of engineering that involves managing certain risks associated with utility mapping at appropriate quality levels, utility coordination, utility relocation design and coordination, utility condition assessment, communication of utility data to concerned parties, utility relocation cost estimates, implementation of utility accommodation ...
Standard electromagnetic induction utility locating tools require utilities to be conductive. These tools are ineffective for locating plastic conduits or concrete storm and sanitary sewers. Since GPR detects variations in dielectric properties in the subsurface, it can be highly effective for locating non-conductive utilities.
Highman said 62% of the city's utility accounts that are delinquent by at least $50 are for rental properties. Among total accounts, 43% are for non-owner occupied properties.
The time would then be recorded on the PS Form 4240 for that route. PS Form 1234 Utility Card (commonly called green card) is used to record work hours when the carrier is doing miscellaneous duties or when attending training. Carriers will use more than one utility card if they work in more than one station.
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In March 2005, the United States Federal Communications Commission (FCC) made 8-1-1 the universal number for the 71 regional services that coordinate location services for underground public utilities in the U.S. [12] Before that time, each of these "call before you dig" services [13] had its own 800 number, and the FCC and others wanted to make it as easy as possible for everyone planning an ...
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