Engineering
Top stories summarized by our editors
9/18/2018

With the Trump administration poised to roll back wetland preservation regulation, California authorities are looking to step in with a "no net loss" wetlands policy to avoid losing wetland acreage. While the policy has essentially been in effect since 1993, it has not been enforced, and evidence indicates that the state has lost wetland acreage since then.

9/18/2018

Frederick County, Md., is extending its protest over the state's stormwater management requirements to the Maryland Court of Appeals. At issue are MS4 standards that the county says would require an unfeasible number of improvements in the time allotted.

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Maryland Court of Appeals
9/18/2018

A ruling that found Virginia's Dominion Energy liable for an arsenic discharge from a coal ash storage facility into water has been overturned on appeal. The 4th US Circuit Court of Appeals found that the lower court erred in determining that the pollution originated from a "point source" covered by the Clean Water Act.

9/18/2018

Flood resilience projects spread across six coastal parishes in Louisiana will each get a portion of $41 million in funding. Projects include residential relocations, elevated housing and a park for stormwater storage.

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The Associated Press
9/18/2018

A UK study provides initial estimates of the percentages of suspended sediments and phosphorus loads that are likely to be trapped by "Natural Based Solutions" added to small catchments to enhance their natural attenuation. Results from the modeling used indicated that 5% to 10% improvements are possible after adding about 2,600 to 10,400 cubic yards of storage.

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MDPI (Switzerland)
9/18/2018

There's still time to attend the Texas Stormwater conference in Grapevine, Texas, Sept. 24-26, 2018. Register today so you won't miss out on this first-of-its-kind event. It will be a great opportunity to learn more about stormwater regulations under the Texas Pollutant Discharge Elimination System. Register today!

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ieca.org
9/18/2018

Get a head-start on your Annual conference experience by joining us Tuesday, Feb. 19, 2019, for IECA's Pre-Conference Workshop Program. IECA will be offering six half-day workshops, providing you the practical education you need to get the job done. Browse pre-conference courses offered.

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eventscribe.com
9/18/2018

Due to misinterpretation of legalese, CFM International has undertaken efforts to clarify its aftermarket actions regarding its agreement with the International Air Transport Association. Under the agreement, CFM waived the license fees of certified MROs, said that it will not remove repairs from maintenance manuals, and stopped forbidding the use of non-OEM parts or repairs in engines.

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MRO Network
9/18/2018

Developing a monitoring program for predictive maintenance includes determining which components of a system have the largest effect on production, in what ways they could fail and how they look without flaws. An AI monitoring system can quickly analyze a stream of data with multiple variables, comparing data from optimal run cycles with real-time data from dozens of other components to predict machine failure.

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BIC Magazine
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AI
9/18/2018

Airlines are using sensor data from planes to detect potential problems with engines and pneumatic systems, but it will take time before the technology fulfills its promise, writes Jon Hemmerdinger. Transmission costs and "limited computational power" are among the factors that keep airlines from fully using the data that's streaming out of newer planes.

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FlightGlobal (U.K.)