EGGAR/GAR

Standard Operating Procedure On The Conduct Of Geohazard Assessment

RAPID GEOHAZARD ASSESSMENT

  • Scale of Output map: 1:100,00 to 1:50,000
  • Information gathered during the field:
    • Notations on possible causes or contributing parameters
    • Impacts created such as:
    • Number of affected households/properties
    • Amount of damage (infrastructure, agriculture, etc)
    • Field documentation (i.e. pictures and/or video footages)
    • Depth and width of floodwaters
    • Breadth of a slide
    • Actions taken:
    • Immediate information of the concerned local authorities or residents in the area about the possible risk involved
    • Prepare technical report that would be immediately release to authorities (e.g. Secretary, Director, Regional Executive Director/Regional Director, NGA/LGU concerned) within appropriate time, and if necessary within 36 hours from the completion of work

RECONNAISSANCE  GEOHAZARD ASSESSMENT

    • Scale of Output map: 1:50,000
    • Information gathered during the field:
      • Historical accounts or records of incidence(s)
      • Location(s) of previous or historical incidence(s) which is also plotted/pinpointed on the map
      • Whenever necessary, sampling of rock /soil or any datable information is made for future analytical or laboratory works.
      • All the communities or barangays within the project area are being covered for the purpose.
      • Rate of completion depends on the area and number of concerns
      • Team consists of:
      • Four (4) geologist
      • Two (2) geologic aides
      • At least 80% of the total # of barangays in three (3) municipalities could be covered in two(2) weeks (almost the same as rapid geohazard assessment but with some additional data such as)

GIR

GUIDE IN THE PREPARATION OF A GIR

  • Indicate  possible present geohazard in the project site
  • If necessary, proponent shall conduct  further studies according to the recommendations stated in the GIR and shall submit a corresponding Geohazard Assessment Report (GAR)
  • checklist per MGB MC 2000-33 shall apply to the GAR

QUALIFICATIONS OF GIR AND GAR PREPARERS

  • Licensed professional Geologist with a minimum experience of five (5) years as a practicing geologist
  • or licensed Engineer with the following qualifications:
  • Minimum of five (5) years experience in land development and/or infrastructure development; and;
  • At least six (6) months training in Engineering Geology/Structural geology or post-graduate diploma in Engineering Geology/Structural Geology

GOVERNMENT PROJECTS:

  • Subject to a memorandum of agreement, in accordance with the provisions of DENR A.O. No. 2000-28

EXCLUSIONS

  • The guidelines and provisions of DENR A.O. 2000-28 and MGB MC 2000-33 shall apply to housing projects whose permitting process has been started prior to the date of issuance of this Memorandum
  • For non-housing projects subject to IEE/EIA and ECC processing, the guidelines on the conduct of scoping (GSSR), EGGA Review/Verification shall apply in accordance with DENR A.O. No. 2000-28 and MGB Memo Circular No. 2000-33, unless otherwise amended or revoked.