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References in periodicals archive ?
That applied only to rural higher-risk, larger-diameter onshore pipelines that are located in or within one-half mile of an unusually sensitive area (USA) and operate at stress levels greater than 20 percent of specified minimum yield strength.
That applied only to rural higher-risk, larger-diameter onshore pipelines that are located in or within a half mile of an unusually sensitive area (USA) and operate at stress levels greater than 20% of specified minimum yield strength.
The phase one rulemaking, announced on May 18, applies to those low-stress pipelines 8 5/8 inches or greater in diameter located in or within a half-mile of an unusually sensitive area (USA).
Drinking water unusually sensitive areas (USAs) from surface water in the year 2000.
In the future, OPS also plans to include road and rail networks, important buildings such as schools and hospitals, and Unusually Sensitive Areas as defined by OPS, on the mapping system.
High consequence areas are determined based on population density, whether they are near unusually sensitive areas (USAs) or near commercially navigable waterways.
Office of Pipeline Safety (now part of PHMSA) defines unusually sensitive areas (USAs) as places that contain drinking water and ecological resources that are potentially more susceptible to long-term, irreversible, or irretrievable damage from a pipeline accident.
Both low-stress and rural gathering lines were historically exempt from extensive regulation by PHMSA, but in response to the incident, PHMSA proposed new regulations to apply design, construction and inspection requirements--including internal inspection--to lines within one-quarter mile of unusually sensitive areas.
And of these lines, half are more than 40 years old, Recent federal regulations specify pipeline operators to assess, evaluate, repair and validate certain pipeline segments, which in the event of leak or failure could affect highly populated areas or other unusually sensitive areas. This aging pipeline infrastructure and more stringent regulatory requirements are increasing pipeline operators' demand for technological innovation and efficiency.
* Unusually sensitive areas (USAs): Locations that include drinking water and ecological areas that are unusually sensitive to environmental damage in the event of a hazardous liquid pipeline release.