Nearly 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.]