Unstable soil definition

Unstable soil means a portion of land surface or area which is prone to slipping, sloughing or landslides.
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Unstable soil means earth material, that because of its nature or the influence of related conditions, cannot be depended upon to remain in place without extra support, such as would be furnished by a system of shoring.
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Unstable soil means soil types which pose severe limitations upon development due to potential flooding, structural instability, or inadequate sewage waste disposal, as defined by the U.S. Soil Conservation Service, and include Coquito silt loam (Cm), concord silt loam (Co), terrace escarpment (Te), Wapato silt clay loam (Wc) and Newberg fine sandy loam (Nu).
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Examples of Unstable soil in a sentence

  • Unstable soil or soil-like Class A low-level radioactive waste, excluding waste containing radionuclides with half-lives greater than 35 years or transuranics in concentrations less than ten (10) nanocuries per gram, may only be disposed within concrete canisters in the Federal Waste Disposal Facility Containerized Disposal Unit or Compact Facility Waste Disposal Unit.

  • Unstable soil or soil-like Class A low-level radioactive waste, excluding waste containing radionuclides with half-lives greater than 35 years or transuranics in concentrations less than ten (10) nanocuries per gram, may only be disposed within concrete canisters in the Federal Facility Waste Disposal Facility Containerized Disposal Unit or Compact Facility Waste Disposal Unit.

  • Unstable soil includes but is not necessarily limited to areas identified as containing organic soils or sensitive marine clays (Leda clay).

  • The Town may order the Contractor to change his boring equipment if he considers it so non-compatible, and if, in his opinion, the change is necessary to safeguard the public and to protect public or private property.Soil Stabilization: Unstable soil shall be stabilized ahead and around casing pipe by chemical grout injection and/or other acceptable methods.Jacking: Installation of the casing pipe shall be a continuous operation until completed.

  • Unstable soil conditions during or after completion of the proposal?☐☒☐☐d.

  • Unstable soil shall be removed and replaced with gravel which shall be thoroughly tamped.

  • Unstable soil slopes and embankments make up 78% of the active inventory (166 sites), with unstable subgrades, retaining walls and rock slopes comprising the remaining 22% (47 sites, Figure 2).

  • Like the distances derived using the classical covariance matrix, the locally-centred Mahalanobis distances are invariant to any sort of variable scaling.

  • Unstable soil or other excavated material shall be disposed of off site as directed by the Planning Board or its agent.

  • Unstable soil may require use of steel casings to stabilize the excavated hole, which would be from 6 to 11 feet in diameter.


More Definitions of Unstable soil

Unstable soil means soil types which pose severe limitations upon development or create a ground water pollution hazard due to poor filtration, high water table and/or cemented hardpan, as defined by the U.S. Soil Conservation Service.
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Unstable soil means soil types which pose severe limitations upon development due to potential flooding, structural instability, or inadequate sewage waste disposal, as defined by the U.
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Unstable soil means soil, which, in the Council’s opinion, is subject to movement or unsafe as a result of soil or geo-technical conditions.
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Unstable soil means a portion of the land surface which is prone to slipping, sloughing or landslides.
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Unstable soil means soil types which pose severe limitations upon development due to potential flooding, structural instability, or inadequate sewage waste disposal, as defined by theU.S. Soil Conservation Service.
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Related to Unstable soil

  • Unstable area means a location that is susceptible to natural or human-induced events or forces capable of impairing the integrity of some or all of the landfill structural components responsible for preventing releases from a landfill. Unstable areas can include poor foundation conditions, areas susceptible to mass movements, and Karst terranes.

  • chemical tanker means a ship constructed or adapted and used for the carriage in bulk of any liquid product listed in chapter 17 of the International Bulk Chemical Code;

  • fissionable substance means any prescribed substance that is, or from which can be obtained, a substance capable of releasing atomic energy by nuclear fission.

  • Underground injection means the subsurface emplacement of fluids through a bored, drilled or driven well; or through a dug well, where the depth of the dug well is greater than the largest surface dimension. (See also “injection well”.)

  • Controlled dangerous substance means a drug, substance, or

  • explosive actuated fastening device means a tool that is activated by an explosive charge and that is used for driving bolts, nails and similar objects for the purpose of providing fixing;

  • impermeable surface means a surface or pavement constructed and maintained to a standard sufficient to prevent the transmission of liquids beyond the pavement surface, and should be read in conjunction with the term “sealed drainage system” (below).

  • High global warming potential hydrofluorocarbons means any hydrofluorocarbons in a particular end use for which EPA’s Significant New Alternatives Policy (SNAP) program has identified other acceptable alternatives that have lower global warming potential. The SNAP list of alternatives is found at 40 CFR part 82, subpart G, with supplemental tables of alternatives available at (http://www.epa.gov/snap/ ).

  • Underground mining means all methods of mining other than surface mining.

  • Contaminated soil means soil that meets all of the following criteria:

  • Hazardous Substance Activity also means any existence of Hazardous Substances on the Property that would cause the Property or the owner or operator thereof to be in violation of, or that would subject the Property to any remedial obligations under, any Environmental Laws, including CERCLA and RCRA, assuming disclosure to the applicable governmental authorities of all relevant facts, conditions and circumstances pertaining to the Property.

  • Residual disinfectant concentration means the concentration of disinfectant measured in mg/L in a representative sample of water.

  • Waterborne disease outbreak means the significant occurrence of an acute infectious illness, epidemiologically associated with the ingestion of water from a public water system which is deficient in treatment, as determined by the Division.

  • Underground facility means any item which shall be buried or placed below ground for use in connection with the storage or conveyance of water, sewage, electronic, telephone or telegraphic communications, electric energy, oil, gas or other substances, and shall include, but not be limited to pipes, sewers, conduits, cables, valves, lines, wires, manholes, attachments and those portions of poles and their attachments below ground.

  • Underground tank means a device meeting the definition of tank whose entire surface area is totally below the surface of and covered by the ground.

  • Underground storage tank or “UST” means any one or combination of tanks (including underground pipes connected thereto) that is used to contain an accumulation of regulated substances, and the volume of which (including the volume of underground pipes connected thereto) is 10 percent or more beneath the surface of the ground. This term does not include any:

  • Hazardous substance UST system means an UST system that contains a hazardous substance defined in section 101(14) of the Comprehensive Environmental Response, Compensation and Liability Act of 1980 (but not including any substance regulated as a hazardous waste under subtitle C) or any mixture of such substances and petroleum, and which is not a petroleum UST system.

  • Hazardous Substance Condition means the occurrence or discovery of a condition involving the presence of, or a contamination by, a Hazardous Substance as defined in Paragraph 6.2(a), in, on, or under the Premises.

  • Underground storage means storage of gas in a subsurface stratum or formation of the earth.

  • Airborne radioactivity area means a room, enclosure, or area in which airborne radioactive materials, composed wholly or partly of licensed radioactive material, exist in concentrations:

  • Chemical substance means a substance intended to be used as a precursor in the manufacture of a controlled substance or any other chemical intended to be used in the manufacture of a controlled substance. Intent under this subsection may be demonstrated by the substance's use, quantity, manner of storage, or proximity to other precursors or to manufacturing equipment.

  • Underground area means an underground room, such as a basement, cellar, shaft or vault, providing enough space for physical inspection of the exterior of the tank situated on or above the surface of the floor.

  • Aboveground storage tank shall have the meaning ascribed to such term in Section 6901 et seq., as amended, of RCRA, or any applicable state or local statute, law, ordinance, code, rule, regulation, order ruling, or decree governing aboveground storage tanks.

  • Underground storage tank system means an underground storage tank and the connected underground piping, underground ancillary equipment, and containment system, if any.

  • Airborne radioactive material means any radioactive material dispersed in the air in the form of dusts, fumes, particulates, mists, vapors, or gases.

  • Radioactive substance means a substance that emits ionizing