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Construction-Site Plan Review Program ` The Department of Conservation's Division of Oil, Gas, and Geothermal Resources(Division)is charged with implementing Section 3208.1 of the Public Resources Code(PRC).As a result,the Division developed the Construction-Site Plan Review Program to assist local permitting agencies in identifying and reviewing the status of oil or gas wells located near or beneath proposed structures. Before issuing building or grading permits, local permitting agencies review and implement the Division's preconstruction well requirements. Interaction between local permitting agencies and the Division helps resolve land-use issues and allows for responsible development in oil and gas fields. r" The Division's Construction-Site Plan Review Program consists of the following: • Procedures for Plugging Construction-Site Wells • Construction-Site Plan Requirements o Construction-Site Review Application(PDF) • Conducting Gas Tests on Wells • Obtaining a Permit to Work on a Well • What Will You Receive from the Division? • Contaminated Soil Found at a Construction Site • Water Wells • Vent Systems and Other Gas Mitigation Measures • Contacts • Well Abandonment Contractors(Excel File) r Procedures for Plugging and Abandonment or Reabandonment of Construction-Site Wells A.The applicant(developer/landowner)presents a construction-site plan to the local permitting agency. r B.The local permitting agency checks the construction-site plan against Division maps to determine if any wells are located within or adjacent to the indicated property boundaries. If a well appears to be located within this area, the applicant is directed by the local permitting agency to provide materials specified by the Construction-Site Plan Review Program to the Division to initiate the review process. C.The applicant provides the Division with the pertinent information and the district office provides the applicant with the well-location and elevation information from well records. v D.With the provided well location(s),the applicant must locate,uncover,and,when necessary,survey the well(s). If a well cannot be located using a well-record location description,sufficient efforts,including excavation, must be made to ascertain each well's location within the construction-site boundaries. r E.The following procedures should be used to locate all wells within the construction site: 1.The applicant must attempt to locate a well using the location of record and dig an excavation that is at least 15 feet long, 15 feet wide,and 6 feet deep,or sufficiently larger or deeper as necessary.The applicant shall notify the Division to witness all completed excavations before they are back filled. 2. If the well is not located in Step 1,a magnetometer should be used to survey the area inside and outside of the r• excavation. 3.The applicant may be required to further excavate locations with magnetic anomalies by increasing the size of the excavation or using a more specialized geophysical survey. s 4. If the well search efforts prove unsuccessful,the applicant must prepare a written report describing the search procedures and attach the excavation photographs. F. All accessible abandoned wells located on a construction site must be tested for gas leakage and inspected for oil leakage.Any welded steel plates must be removed,and the presence of a competent cement plug must be verified in the rasing and all annular spaces. r