The Environmental Law Conference at Yosemite® is nationally recognized as the largest and most prestigious gathering in California of leaders in environmental, land use, and natural resources law. For the twelfth consecutive year, Treadwell & Rollo, now part of Langan Engineering, is proud to have been one of the sponsors. T&R Senior Associates Dorinda Shipman [...]
Posts Tagged ‘Environmental’
Final DTSC Guidance on Vapor Intrusion Investigations and Mitigation
Posted in Environmental, tagged air indoor sampling, CA DTSC, DTSC, Environmental, environmental engineering, Johnson and Ettinger, Michael Chendorain, soil gas, soil vapor, Soil vapor extraction, sub-slab, vapor intrusion, Vapor Intrusion Mitigation, Vapor Intrusion Mitigation Advisory, vapor mitigation, vapor mitigation systems on October 27, 2011 | 1 Comment »
In October 2011 The California Environmental Protection Agency’s Department of Toxic Substances Control (DTSC) released two documents related to Vapor Intrusion issues. The document titled “Guidance for the Evaluation and Mitigation of Subsurface Vapor Intrusion to Indoor Air” represents a revised document that incorporates public comments. This document, considered by the DTSC to be a [...]
Earthquake Experts Present on Seismic Hazards in the Gulf Region
Posted in Geotechnical, Seismic, tagged Abu Dhabi, building code guidelines, Coffey Geotechnics, Deep Foundations Conference, Doha, Dubai, engineering, Environmental, Geotechnical, Geotechnical Engineer, geotechnical engineering services, geotechnical services, Gulf Region, jet grouting, Kostis Syngros, Langan, Langan Engineering & Environmental Services, liquefaction, Middle East, mitigation, piling, Probabilistic Seismic Hazard Analyses, Prof. Dr. Harry Poulos, Prof. Dr. Ing. Rolf Katzenbach, Ramin Golesorkhi, seismic design, seismic engineering, Seismic Hazards, Seismic Hazards and Design in the Gulf Region, seismicity, tall towers, Technisches Universitat Darmstadt, Treadwell & Rollo, Treadwell and Rollo, underground infrastructure, Value-engineered geotechnical engineering on August 11, 2011 | Leave a Comment »
As Langan operates three Middle East offices in Abu Dhabi, Dubai, and Doha, we are very familiar with Seismic Hazards in the Gulf Region. At the 2011 Underground Infrastructure and Deep Foundations Conference in Doha, Qatar Ramin Golesorkhi, PhD, GE presented “Seismic Hazards and Design in the Gulf Region,”co-authored by Kostis Syngros, PhD, PE of [...]
For the Love of Soil – Meet Langan’s Diane Fiorelli
Posted in Awards, Environmental, Geotechnical, tagged Andy Ciancia, Civil Engineering, Cooper Union, Diane Fiorelli, Environmental, environmental engineering, George Leventis, Geotechnical, Geotechnical Engineer, geotechnical engineering services, geotechnical investigation, geotechnical services, Greece, Langan, Langan Engineering & Environmental Services, Las Vegas, New York, Rion-Antiron Bridge, soil, soil mechanics, UC Berkeley on July 19, 2011 | 1 Comment »
Diane Fiorelli, DFI For Langan Engineering’s Diane Fiorelli the path to becoming a highly respected Geotechnical Engineer began with a love for science. As a high school student in New York’s Long Island, Fiorelli enjoyed the challenge of math and science and found that they came to her easily. She decided initially on a career [...]
Hodson Heads Site/Civil Practice in the San Francisco Bay Area
Posted in General, tagged Civil Engineering, earthquake, earthquake engineering, Environmental, Geotechnical, land development, Langan, Langan Engineering & Environmental Services, New York, San Francisco, San Francisco Bay Area, seismic, seismic engineering, Site/Civil, Treadwell & Rollo on January 25, 2011 | Leave a Comment »
The “face” of site/civil in our Bay Area offices belongs to DJ Hodson, PE, LEED AP, who has relocated to California with his family. DJ brings 17 years of land development engineering experience with a focus on site/civil engineering, mostly in New York City where he pioneered Langan’s practice in the Big Apple. As [...]
The Langan/Treadwell & Rollo Partnership
Posted in Environmental, General, Geotechnical, tagged California, civil, David T. Gockel, engineering, Environmental, Geotechnical, Langan Engineering & Environmental Services, New Jersey, Oakland, petro-chemical, Philip T. Tringale, remedial design, Sacramento, San Francisco, San Jose, Treadwell & Rollo on November 5, 2010 | Leave a Comment »
As you may have read in the news recently, Langan Engineering & Environmental Services has acquired Treadwell & Rollo. This is an exciting moment for both firms, as our partnership is one of common professional and cultural philosophies. Based in New Jersey, Langan is a privately held consulting firm with 500 employees in 14 offices [...]
Treadwell & Rollo Recognized for Continued Green Business Efforts
Posted in Awards, Green, tagged Bay Area Green Business Program, Chris, composting, Dorinda Shipman, Environmental, green business, green business awards, green committee, recycled paper, San Francisco, Treadwell & Rollo on July 9, 2010 | Leave a Comment »
We are pleased to announce that Treadwell & Rollo’s San Francisco headquarters has been officially re-certified as a Green Business through the year 2013. The San Francisco office now joins our Oakland office, which achieved re-certification as a Green Business in 2009. Although our offices were already quite green from our earlier certification efforts through [...]
