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Complexities of conducting a methane soil gas investigation in Downtown LA

October 12, 2016

complexities-of-conducting-a-methane-soil-gas-investigationA City of Los Angeles Methane Soil Gas Investigation in and of itself is not very difficult to complete. As a licensed City of Los Angeles Methane Testing Agency #10224, Terra-Petra routinely completes anywhere from 2 to 8 of per month. However, many times the site conditions can really determine the difficulty of the investigation. A particular project involving an historical Downtown Los Angeles (DTLA) building has proven to be one of the more challenging for Terra-Petra’s team due to the type of soil conditions and accessibility issues for the drill rig.

Upon completing a site walk of the property on September 2, 2016,  we determined that the only accessible area for conducting drilling activities was in the alley along the south side of the property. Given that the alley is considered to be in the “Right-of-Way,” the work required a City of Los Angeles Permit for Excavation in or Adjacent to Public Streets Under chapter 6, article 2 of the Los Angeles Municipal Code prior to commencing drilling activities.complexities-of-conducting-a-methane-soil-gas-investigation2

The process of getting the Permit for Excavation took a total of about 3 weeks from start to finish. The applicant is obligated to generate a site plan identifying all proposed boring locations, as well as all known underground utility lines. The utility line information can be gathered from the Bureau of Engineering maps, but it also gets field verified using ground penetrating radar and other similar technologies. Once submitted, fees are paid, refundable bonds are posted and the process starts. The permit outlines work hours (9:00 am to 3:30), notification requirements to the City, signage and traffic control requirements as well as resurfacing requirements.

These are just some of the things that keep a methane consultant‘s job interesting!



Terra-Petra to attend the 25th Annual Environmental Law Conference at Yosemite®

September 21, 2016

Meet the Terra-Petra Team at the Environmental Law Conference at Yosemite® 
Thursday-Sunday, October 20-23, 2016

picture of Yosemite

Tenaya Lodge – 1122 Highway 41
Fish Camp, California (“The Gateway to Yosemite”)

Earn 11.25 hours participatory MCLE credit!

Essential Info | Program Schedule | Sponsors

Join Kevin Buchanan, President and Justin Conaway, General Manager/Vice President of Terra-Petra Environmental Engineering for the 25th annual Environmental Law Conference at Yosemite®!  Kevin and Justin will be at the Terra-Petra table in the expo hall ready to discuss your latest environmental engineering projects or possible future need. This conference is the largest and most prestigious gathering in California of leaders in environmental, land use, and natural resources law. We hope you will join us and many of our nation’s top environmental officials, lawyers, and other professionals in the spectacular setting of Yosemite.

justingreengalaawards kevinbuchananchinameeting1Photo of the Half Dome. Photo by Nicole Gordon. — at Tenaya Lodge at Yosemite. 2016env-yosemitelodge

See photos from the 2015 Conference here.
REGISTER ONLINE Through October 13th.

If you have further questions or would like to prearrange a meeting time prior to the conference please call Justin Conaway at: 213.458.0494 or email

Terra-Petra deputy inspector on Blossom Plaza project, Chinatown Los Angeles

September 14, 2016



Johnson Fain completes BLOSSOM PLAZA in Chinatown (Los Angeles). Designed by Johnson Fain for FOREST CITY REALTY TRUST, the new transit-oriented, mixed-use development links a highly accessible and pedestrian-friendly network of public open spaces to the Metro Gold Line Chinatown station.

The plaza ignites a vibrant and culturally rich urban experience with 237 apartments, 20,000 square feet of ground level retail and restaurant space, and 19,000 square feet of public space which accommodates neighborhood events.

Associate Architect: Togawa Smith Martin

Terra-Petra’s 1st Annual Summer Picnic – a Success!

July 8, 2016

Terra-Petra’s first annual summer family picnic was a tremendous success. Our holiday party is always well attended by our team members and their significant others, but this time we had a chance to include the families!

You can see them all via the Terra-Petra Facebook Page, but here are a few highlights….

cornhole3 kbfootball.jpg ferncornhole2.jpg calvin1 playingbaseball soccer1 ferncornhole.jpg cornhole football2 soccer2


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