Fine Sediment Control Sample Clauses

Fine Sediment Control a. Technical overview: riparian influence on fine sediment control function Riparian areas can play an important role in controlling fine sediment transport into local water bodies (fine sediments include fine-grained particles such as silt, clay, sand, and mud particles). As described previously, fine sediment plays an important role in ameliorating the effect of toxic chemicals and excessive nutrients in water quality. Fine sediment also is important in maintaining soil characteristics necessary for the growth and maintenance of riparian vegetation. However, maintaining natural erosion and sediment transport processes is critical to maintaining Puget Sound beaches and much of the sediment nourishing these beaches originates in marine riparian areas. The delivery of sediment to marine beaches is facilitated by natural driving forces (wind and wave action, bluff saturation, leading to slope failures) and it is very important to maintain these natural sediment inputs. Thus, there is a need to distinguish between “normative” sedimentation rates in marine riparian areas as opposed to human-induced changes to sediment inputs. Fine sediments originate from a number of terrestrial sources, both natural and anthropogenic, however, the focus of this section is fine sediments originating from development, forestry, and agriculture, which can increase fine sediment delivery beyond normative rates. As used here, normative rate refers to the rate of sediment delivery in riparian areas undisturbed by human activity. Fine sediments become exposed and subject to erosion as a result of vegetation removal, excavation and compaction of soils. Once sediments are suspended in surface water, they can be delivered through run-off to adjacent waterways unless they settle out or become trapped. Undisturbed soils and vegetation in riparian areas act in concert to reduce erosion and slow the transport of fine sediment by the following mechanisms (adapted from Greenway 1987; Xxxx and Xxxxxx 1992; and Xxxx and Xxxxx 1996): • Riparian vegetation intercepts rainfall energy, helping prevent soil compaction; • Roots and soils help bind and restrain soil particles and increase sheer strength of the soil; • Vegetation slows surface runoff allowing for increased localized sediment deposition and decreasing off-site transport; • Porous and permeable soils improve water absorption reducing surface flow; and • Transpiring vegetation helps moderate soil moisture levels, which increases infiltra...
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Fine Sediment Control. Road construction in forested areas increases sedimentation and reduces bank stability (Xxxxxxx and Xxxxxx 2006). Construction and maintenance activities can increase fine sediment loads and mass wasting processes (e.g., debris avalanches, debris flow, and debris torrents), which in turn can cause erosion and changes in stream channel (or beach) morphology (Hashim and Xxxxxxx 2005; Xxxxxxx and Xxxxxx 2006). Logging and burning can destabilize soils, increase the frequency and magnitude of erosion, and cause sedimentation (Xxxxxxx and Xxxx 1997).
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Related to Fine Sediment Control

  • Erosion and Sediment Control The Contractor shall install and maintain erosion and sediment control devices to prevent adjacent streets, storm drains and property from accumulations of soil, sediment, or dust which result from his work. Devices installed to control sediment and prevent erosion shall comply with the requirements of the Georgia Tech Project Superintendent. The Contractor is responsible for monitoring downstream conditions throughout the construction period and clearing any debris, sediment, and dust caused by the progress of the Work. The Contractor shall inspect, maintain, and clear erosion and sediment control devices at least weekly unless otherwise directed by the Georgia Institute of Technology Construction Manager. At the conclusion of the Work, the Contractor shall remove all installed devices and restoring the site to the satisfaction of the Georgia Tech Construction Manager.

  • Pest Control A. Whenever a department utilizes a pest control chemical in State owned or managed buildings/grounds, the department will provide at least forty-eight (48) hours notice prior to application of the chemical, unless an infestation occurs which requires immediate action. Notices will be posted in the lobby of the building and will be disseminated to building tenant contacts.

  • Infection Control Consistent with the Centers for Disease Control and Prevention Guideline for Infection Control in Health Care Personnel, and University Policy 3364-109-EH-603, the parties agree that all bargaining unit employees who come in contact with patients in the hospital or ambulatory care clinics will need to be vaccinated against influenza when flu season begins each fall. The influenza vaccine will be offered to all health care workers, including pregnant women, before the influenza season, unless otherwise medically contraindicated or it compromises sincerely held religious beliefs.

  • Input Control The possibility to subsequently verify and determine whether, and by whom, personal data was entered into, changed or removed from data processing systems must be ensured. • Definition of entry authorisation • Logging of logins

  • Traffic Control The Surveyor shall control traffic in and near surveying operations adequately to comply with provisions of the latest edition of the Texas Manual on Uniform Traffic Control Devices – Part VI which can be found on the State’s internet site. In the event field crew personnel must divert traffic or close traveled lanes, a Traffic Control Plan based upon principles outlined in the latest edition of the Texas Manual on Uniform Traffic Control Devices – Part VI shall be prepared by the Surveyor and approved by the State prior to commencement of field work. A copy of the approved plan shall be in the possession of field crew personnel on the job site at all times and shall be made available to the State’s personnel for inspection upon request.

  • Use; Quality Control a. Neither party may alter the other party’s trademarks from the form provided and must comply with removal requests as to specific uses of its trademarks or logos.

  • Quality Control A. Controlled Affiliate agrees to use the Licensed Marks and Name only in connection with the licensed services and further agrees to be bound by the conditions regarding quality control shown in attached Exhibit A as they may be amended by BCBSA from time-to-time.

  • Reactive Power and Primary Frequency Response 9.6.1 Power Factor Design Criteria

  • Erosion Control a. The Purchaser shall construct slash and debris erosion barriers, dips, water bars or ditches in skid trails and landings as directed by the Forest Officer.

  • Dangerous Goods, Special Wastes, Pesticides and Harmful Substances Where employees are required to work with or are exposed to any dangerous good, special waste, pesticide or harmful substance, the Employer shall ensure that the employees are adequately trained in the identification, safe handling, use, storage, and/or disposal of same.

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