UST abandonment status update – Los Angeles, California

The in-place UST abandonment went well this past week with a current Terra-Petra project in the Downtown Los Angeles area. LAFD Inspector Sanchez was satisfied with the procedure. Next step in the process will be to follow through with the soil borings, sampling and testing, and the investigative results shall be compiled in the UST Closure Report to LAFD.

Approximately 558,000 underground storage tanks (USTs) nationwide store petroleum or hazardous substances. The greatest potential threat from a leaking UST is contamination of groundwater, the source of drinking water for nearly half of all Americans. EPA, states, and tribes work in partnership with industry to protect the environment and human health from potential releases.

Project directed by Dave Lucero for Terra-Petra Environmental Engineering. Here are some preliminary photos.

 

Successful Oil Well Re-Abandonment Work in Santa Fe Springs

Terra-Petra Oil Well Abandonment The end of August 2016 marked the commencement of Terra-Petra’s re-abandonment of a single oil and gas well located on a client’s property in Santa Fe Springs, California.

Terra-Petra managed all of the oil well permitting matters associated with an unspecified redevelopment of the site since March of this year — consulting with the property owner and negotiating with the Division of Oil Gas and Geothermal Resources (DOGGR) on all oil well related compliance matters in an attempt to bring the site up to current standards so that it can be redeveloped.

Terra-Petra provided a full turn-key approach to address the oil well compliance matters upon submitting the Construction Site Plan Review, wrote the well reabandonment program, filed for and received the Permit to Conduct Well Operations and currently in the process of re-abandoning the well. The well re-abandonment work typically consists of drilling out all existing cement plugs within the well all the way to depth.

Oil well re-abandonment

Once the well is cleaned out new “isolation plugs” consisting of cement are installed at varying depths to seal off different oil and gas producing zones including the upper hydrocarbon zone as well as the base of fresh water.

The cementing operations are completed with a final cement plug from 25’-35’ deep to the surface.  A steel plate is tack welded to the exterior steel casing and the last 5 digits of the API number are welded to it.

The well then must be surveyed prior to burying with latitude and longitude in a specific DOGGR approved format. Terra-Petra is anticipating a completion date of September 23, 2016. Please contact Terra-Petra for any of your oil well related needs. 

Terra-Petra Oil Well Abandonment

oil well re-abandonment

Update on Terra-Petra’s Pacific City Oil Well Abandonment Project

Joe Morelli, Fire Protection Analyst of the HBDF, and Terra-Petra's Larry Barnes consulting near an abandoned oil well trenchNearly two years after commencing environmental work on the Pacific City project in Huntington Beach, California, the site is prepared for further construction. After intensive environmental work to verify the integrity of the on-site oil and water well abandonments, all necessary permits are in place to start constructing the foundation of the approximately 190,000 sq. ft. property. Terra-Petra is proud to have taken part in such a notable development project while contributing to tremendous cost savings for the client.

In order to bring incredible value to the project, Terra-Petra came to a practical remediation plan contradictory to one which may have been reached by blindly conforming to re-abandonment codes and procedures. After a careful review of all information obtained from field explorations and well documents from the DOGGR, Larry Barnes – Terra-Petra’s Senior Petroleum Geologist – determined that a minimally intrusive remediation approach would be sufficient for the site. This approach involved shortening all wells to a depth between 6 and 10 feet below grade, recapping each well head with a circular metal plate, and installing a methane mitigation vent cone at each well head. Rather than disturbing the abandoned wells and replacing all cement plugs with costly drilling expenses, this much more non-intrusive approach was deemed more than adequate for preventing any future leaks and site contamination.

In convincing the governing agencies that is safer to leave the wells relatively undisturbed and proceeding with the aforementioned action plan, Terra-Petra was able to successfully save the client millions of dollars while simultaneously reducing their risks on this sizeable development project. With the combined expertise of the construction team Terra-Petra was able to meet the expedited construction schedule. The client is now in the process of grading the site in preparation for foundation construction. Terra-Petra will be on hand to proceed with the necessary methane gas mitigation measures on the foundation of the site for the safety of future site residents.

[PHOTO: Joe Morelli, Fire Protection Analyst of the HBDF, and  Terra-Petra's Larry Barnes consulting near an abandoned oil well trench.]