AEG Sacramento

Welcome to the blog and newsletter for the Association of Engineering and Environmental Geologists, Sacramento section.

Visit this site to learn more about the association’s recent news including relevant local projects, fundraising events, legislative activities, and publications. Visit the official website at aegsacto.org to RSVP to our monthly meetings or register as a member.

We hope you enjoy this new site, and let us know what you think using the comments section!

Two New Publications on Mount Diablo

The Northern California Geological Society (NCGS) is proud to announce two new publications: GSA Memoir 217 “Regional Geology of Mt. Diablo, California”, published through the Geological Society of America (GSA), and the companion “Geologic Guide to Mount Diablo State Park,” published by the Mount Diablo Interpretive Association (MDIA). The Press Release for both publications is attached.


Recently published are a geologic volume and a companion geologic map and guide to Mount Diablo geology. The volume provides modern geologic insights on the origin and history of the mountain and its place in the regional tectonic setting on the North America plate boundary. The integrated trail and geological map is the first of its kind for Mount Diablo and introduces visitors to Mount Diablo State Park’s unique earth history.

New Volume: Regional Geology of Mount Diablo, California: Its Tectonic Evolution on the North America Plate Boundary: Geological Society of America Memoir No. 217, 488 pages. Edited by Raymond Sullivan, Doris Sloan, Jeffrey R. Unruh and David P. Schwartz. https://rock.geosociety.org/Store/detail.aspx?id=MWR217

Over the past 150 years, Mount Diablo has served as a window into the evolution of the plate boundary relationships in northern California. Memoir 217, published by the Geological Society of America, is a compilation of 17 new research papers, by 33 contributing authors, on the geology of Mount Diablo. This new expansive color volume was assembled under the leadership of Ray Sullivan, Professor Emeritus of Geology at San Francisco State University. Its publication commemorates the 75th anniversary of the Northern California Geological Society. Save Mount Diablo and members of the Northern California Geological Society provided much of the funding for the book.

The Memoir includes the most recent interpretation of the structure of the mountain and explains its recent uplift. Mount Diablo might look like a volcano, but the peaks of the mountain are composed mainly of ancient oceanic rocks and the flanks of younger sedimentary rocks. Papers in the volume include a study of the landscape, details of the rocks, geologic history of the area, mining and petroleum discoveries, as well as the age and origin of volcanic ash beds in the younger sedimentary rocks on the flanks. The main sources of these ash beds are from Nevada, Yellowstone, Cascade Range and Sonoma. A short phase of volcanic activity occurred some 7½ million years ago on the

east side of Mount Diablo, forming a series of prominent domes along Marsh Creek Road. The conclusion: “while the rocks are old, the mountain itself is young”.

According to Ray Sullivan, the lead editor, “the new work contains the most complete studies on the geology of Mount Diablo. They point to the origin of Mount Diablo as a relatively recent event in the long and complex geological history of the California Coast Ranges.”

GSA Memoir 217 is available for purchase at https://rock.geosociety.org/Store/detail.aspx?id=MWR217. NCGS and GSA members are entitled to discounts on the volume ($49 instead of $70). View the table of contents at https://rock.geosociety.org/store/TOC/MWR217.pdf

New Map: Geologic Guide to Mount Diablo State Park by the Mount Diablo Interpretive Association. Available at https://www.mdia.org or at the Mount Diablo State Park Summit and Mitchell Canyon Visitor Centers.

The need for a simplified geological guide to Mount Diablo to accompany Memoir 217 was recognized by the Northern California Geological Society, Mount Diablo Interpretive Association, and California State Parks. A folded two-sided guide, edited by Greg Bartow, is now available, that consists of an updated geologic map with roads and trails on one side, and a description of the geology on the other side. The updated geologic map, by Russell Graymer and Victoria Langenheim of the U.S. Geological Survey, also appears in Chapter 1 of GSA Memoir 217. The guide includes a map showing the epicenters of 7,200 earthquakes that have occurred in the vicinity of Mount Diablo over the last 36 years. These earthquakes illustrate the active nature of the fault systems that continue to form Mount Diablo. Stephen Smith, President of Mount Diablo Interpretive Association, said, “This geologic guide will provide a new resource for visitors to appreciate the unique nature of the park.”

Mount Diablo State Park draws more than 600,000 visitors each year to explore the park and take in the spectacular view. Mount Diablo Interpretive Association (MDIA) is a non-profit, all-volunteer organization that assists the California Department of Parks and Recreation in maintaining and interpreting Mount Diablo State Park. Through education, sponsored activities, and publications, MDIA fosters appreciation and the enlightened use of Mount Diablo State Park. Save Mount Diablo is a non-profit organization dedicated to the preservation of Mount Diablo peaks, surrounding foothills and watersheds through land acquisitions.

Copies of the geologic map can be purchased online at https://www.mdia.org for $7.00 (shipping included), or for $6.00 at the Visitor Centers at Mount Diablo State Park Summit and Mitchell Canyon.

AEG Sacramento Monthly Meeting – October 26th (In Person!)

Please join us (IN PERSON!!) on Tuesday, October 26, 2021 at Aviator’s Restaurant!

We are kicking things back off this month with a presentation focused on National AEG updates (with some naturally occurring asbestos (NOA) and metals discussion thrown in for good measure) and will be hosting our National AEG Association Treasurer Sarah Kalika, PG, CAC, CDPH Lead I/A/S, from DiabloGeo Environmental Consulting, who will be giving a presentation titled AEG Update from the Executive Council; efforts to advance Diversity, Equity, and Inclusion; and a bit about an NOA & metals study. Further information regarding our speaker, as well as the topic of our meeting can be found on the meeting registration page provided below.

Where: Aviator’s Restaurant at 6151 Freeport Blvd in Sacramento, CA 95822

When: Tuesday, October 26, 2021 from 5:30 PM to 8:30 PM PDT

The event will begin at 5:30PM with a social hour. Plenty of parking is available at the restaurant.

Registration for this event can be done online HERE!

We will be trying our best to adhere to National AEG protocols and Sacramento County requirements for in person events. For this event and for the health and safety of our members, proof of vaccination is required or a negative COVID-19 test within the last 72 hours, plus wearing masks is required regardless of vaccination status.

It’s been a while and our sincere apologies for a lack of meetings recently. We are hoping to get back on track and line some speakers up as we finish out the year and head into the 2022. Be on the lookout for some upcoming joint meetings with other organizations in the coming months!

California Department of Conservation is Hiring!

The California Geological Survey (CGS) is looking for an Engineering Geologist to join CGS’s review team! Interested parties should review the Duty Statement. The final filing date for this position is July 28, 2021.

The incumbent will be responsible for preparing highly specialized review comments on geologic and geotechnical reports prepared for critical facilities throughout California, including schools and hospitals, that address the potential for geologic and seismic hazards.

Additional information regarding the position, as well as further information about CGS can be viewed here.

Application Information:

Completed applications and all required documents must be received or postmarked by the Final Filing Date in order to be considered. Dates printed on Mobile Bar Codes, such as the Quick Response (QR) Codes available at the USPS, are not considered Postmark dates for the purpose of determining timely filing of an application.

Final Filing Date: 7/28/2021

Who May Apply: Individuals who are currently in the classification, eligible for lateral transfer, eligible for reinstatement, have list eligibility, are in the process of obtaining list eligibility, or have SROA and/or Surplus eligibility (please attach your letter, if available). SROA and Surplus candidates are given priority; therefore, individuals with other eligibility may be considered in the event no SROA or Surplus candidates apply.

Applications will be screened and only the most qualified applicants will be selected to move forward in the selection process. Applicants must meet the Minimum Qualifications stated in the Classification Specification(s).

How To Apply: Complete Application Packages (including your Examination/Employment Application (STD 678) and applicable or required documents) must be submitted to apply for this Job Posting. Application Packages may be submitted electronically through your CalCareer Account at http://www.CalCareers.ca.gov. When submitting your application in hard copy, a completed copy of the Application Package listing must be included.

You may submit your application and any applicable or required documents to: 

Department of Conservation

Attn: Charli Ramos

801 K Street, MS 22-13

Sacramento, CA 95814

California Geological Survey (CGS) is Hiring!

Under the direction of the Senior Engineering Geologist (Supervisor), the Engineering Geologist is responsible for preparing highly specialized review comments on geologic and geotechnical reports prepared for critical facilities throughout California, including schools and hospitals, that address the potential for geologic and seismic hazards. The incumbent will be headquartered in the county nearest their residence, including but not limited to the following counties: Sacramento, San Mateo, and Los Angeles and telework is available.

For more information and to apply visit CalCareers!

Pacific Section AAPG Virtual Convention June 21-24

The Pacific Section-American Association of Petroleum Geologists (PS-AAPG) is excited to announce that the PS-AAP will be hosting a virtual convention this year (June 21-24, 2021). 

This year’s virtual convention will include:

• A virtual field trip lead by Dr. Richard Behl of CSU Long Beach 

• Three technical sessions scheduled for the mornings of June 22nd, 23rd and 24th, 2021

• Bob Lindblom’s annual Honors and Awards session

The technical sessions include:

• A Monterey session with a lecture on age control in the Monterey and its relationship to climate change, plus several technical presentation including updates on the latest Monterey

research.

• A geochemistry and basin modeling  session with Dr. Allegra Hosford Scheirer regarding machine learning to enhance the understanding of petroleum systems, plus several technical presentations focusing

on the coastal basins of California.

• A Regulatory and Environmental Geology session, including a panel discussion with the State Geologist Dr. Steven Bohlen and William Bartling, recently retired CalGEM Chief Deputy, on the

future of petroleum geologists in California, plus a lecture on the use of the role of stratigraphy in the environmental industry by Rick Cramer, and additional technical presentations.

Please mark your calendars and save the date(s)!

Check the convention website for registration information.  The convention website will be updated soon. 

http://www.psaapgconvention.org/2021/

To check membership status- please visit the PSAAPG.ORG Membership page, where you will be able to type in your last name and check the status of your member (Click Here for Link)

Stay connected with PS-AAPG on LinkedIn for more up to date information and job/training opportunities.

Sacramento AEG Virtual May Meeting: National AEG President William H. Godwin!!!

Please join us on Tuesday, May 18 on Zoom! We will be hosting the national AEG President William H. Godwin from the San Francisco Bay Area Chapter of AEG who will be giving a presentation titled Lessons Learned from the Baker Beach Landfill Removal Project.

Register Here!!!

Lessons Learned from the Baker Beach Landfill Removal Project

William H. Godwin, PG, CEG

National Association of Engineering and Environmental Geologists (AEG) President and San Francisco Bay Area Chapter Member

Abstract

After a three-year planning, site investigation and design process, two Army-era landfills were removed from the steep 270 foot (80 meter) high bluffs above Baker Beach in the Presidio of San Francisco in 2007.  The landfills had been created over a 50-year period during the last century by dumping of waste soil, construction debris and incinerator ash over the steep cliffs.  High-value serpentine habitat and historic artillery batteries and earthworks surrounding the landfills, as well as locally unstable slopes prevented the construction of access roads to simplify the removal process.

Despite extensive pre-removal site exploration and analyses, once excavation and removal began the landfills were found to contain nearly double the amount of waste that had been anticipated, resulting in a significant increase in project cost.   By using a combination of paddle conveyors, “spyder “walking excavators, off-road dump trucks and a bucket-brigade of long-reach hydraulic excavators the contractor was able to remove the waste soil and debris and adhere to the original project schedule.  

A project post-mortem indicated that additional drilling and sampling during the site investigation phase would have likely revealed the presence of thicker fill deposits, allowing a more accurate estimate of the eventual waste tonnage and better estimates of the project’s final cost, albeit at a significant increase in the cost of the investigation.

This presentation was given at the 2007 AEG Annual Meeting in Los Angeles and the 2010 IAEG Congress in Auckland, New Zealand. Portions of this presentation have been updated.

Speaker Bio

William H. Godwin is a member of the San Francisco Bay Area Chapter of the Association of Environmental and Engineering Geologists (AEG) and is the current 2020-21 National President. He has been a practicing geologist for over 40 years and has been working as an independent geologic consultant since 2014 and as an on-call employee for several large geotechnical consulting firms.  Mr. Godwin earned a Bachelor of Science degree in Geology from the University of Redlands, in Southern California.  He is a licensed Professional Geologist (PG) and Certified Engineering Geologist (CEG) in California. He lives in Pacific Grove California.

May Meeting Announcement – Southern Nevada, Great Basin, NV Student Chapters!!!

May Meeting Announcement!
“When Mountains Move Roads:Science, Engineering, and Management along the Big Sur Coast”  
By: Cheryl Hapke, PhD; AEG/GSA 2021 Jahns Distinguished Lecturer

Join us Tuesday, May 11, 2021 at 6:30 p.m. PDT for an AEG Southern Nevada, Great Basin, and NV Student Chapter joint webinar.

We hope to resume in-person meetings in the future, but will continue to host our meetings virtually until further notice.
This is a free webinar!

Abstract of the presentation and speaker’s bio are available on our website. 
 
Please Register at https://attendee.gotowebinar.com/register/5358513212900490764  
After registering, you will receive a confirmation email containing information about joining the webinar.   

Please save the date and time!  

Thank you to this month’s sponsor.
Click on the logo to learn more about this month’s sponsor.

San Francisco AEG April Virtual Social Night!

Please join the San Francisco AEG Chapter’s April Virtual Social Night! It will be a night of Jeopardy and socializing. Log in a join them for a night of fun!

Meeting Details:

May 4, 2021 @ 7 pm

This is a free event, but feel free to donate to our student scholarship!

A link and login instructions will be sent the day of the event.

Spaces are limited, RSVP in advance!

Please fill out the online form by 5 PM, Monday May3, 2021.

California Geological Survey (CGS) is Hiring!

The California Geological Survey (CGS) is seeking to hire a Civil Engineer with geotechnical engineering experience to add to our staff in the Essential Facilities Review Program. The Civil (geotechnical) Engineer will be responsible for reviewing geologic and geotechnical reports prepared by others for projects at public K-12 schools, community colleges, and acute care hospital projects throughout California. The position will be based out of one of the three main CGS offices (Sacramento, Los Angeles, or San Mateo) and is subject to ongoing telework in accordance with State of California and Department of Conservation policies. If you or someone you know may be interested and qualified for the Civil (geotechnical) Engineer position with CGS, please review the job duties and application requirements listed in the position postings for each of the three main CGS offices:

Sacramento: https://www.calcareers.ca.gov/CalHrPublic/Jobs/JobPosting.aspx?JobControlId=243227

Los Angeles: https://www.calcareers.ca.gov/CalHrPublic/Jobs/JobPosting.aspx?JobControlId=243222

San Mateo: https://www.calcareers.ca.gov/CalHrPublic/Jobs/JobPosting.aspx?JobControlId=243225

The final filing deadline for applications is April 13, 2021. If prospective applicants should have questions about the position, please contact Chase White at chase.white@conservation.ca.gov

Sacramento AEG Virtual March Meeting!

Please join us on Tuesday, March 23, 2021 from 5:30 PM to 7:00 PM PDT on Zoom! We will be hosting Professor Ross W. Boulanger from the Center for Geotechnical Modeling in the Dept. of Civil and Environmental Engineering at the University of California, Davis who will be giving a presentation titled Liquefaction: Lessons, challenges and opportunities. Register HERE!

Liquefaction: Lessons, challenges, and opportunities

Ross W. Boulanger, PhD, PE, NAE

 Distinguished Professor and Director: Center for Geotechnical Modeling, Department of Civil and Environmental Engineering, University of California, Davis

rwboulanger@ucdavis.edu

Abstract

Liquefaction during earthquakes has been the subject of extensive study for over half a century and is now routinely addressed in engineering practice using a wide range of technical approaches that depend on the project size and importance. These past studies have produced major advances in our scientific understanding of liquefaction phenomena and the engineering practices used to address liquefaction hazards, but there remain numerous situations where knowledge gaps and engineering practice limitations hinder the efficient mitigation of earthquake-induced liquefaction damage to our infrastructure and communities. This presentation examines a number of lessons, challenges, and opportunities regarding the evaluation and mitigation of liquefaction hazards, including aspects of site characterization, engineering analysis methods, challenging soil types, remediation methods, performance-based engineering procedures, and risk management approaches.

Speaker Bio

Professor Ross W. Boulanger is Director of the Center for Geotechnical Modeling in the Department of Civil and Environmental Engineering at the University of California, Davis. He received his PhD and MS degrees in Civil Engineering from the University of California at Berkeley and his BASc degree in Civil Engineering from the University of British Columbia. His research and professional practice are primarily related to liquefaction and its remediation, seismic performance of dams and levees, and seismic soil-structure interaction. His honors include the TK Hsieh Award from the Institution of Civil Engineers, the Peck Award, Norman Medal, Huber Prize, and Casagrande Award from the American Society of Civil Engineers, and election to the US National Academy of Engineering.