Direct Assessment Integrity Services

External Corrosion Direct Assessment (ECDA)
Direct Assessment is an approved method for evaluating pipelines in HCA’s for integrity management as directed by the U.S. Department of  Transportation Pipeline and Hazardous Materials Safety Administration (PHMSA) and the state regulatory commissions, along with in-line inspection and hydrostatic testing.

Mears assists clients in the development of ECDA standards and protocols that are appropriate for their pipeline systems. The four steps of the ECDA process are available in combination or individually to accommodate specific needs.

Direct Assessment Services Package:

  • External Corrosion Direct Assessment (ECDA)
  • ECDA for Cased Pipe
  • Internal Corrosion Direct Assessment (ICDA)
  • Stress Corrosion Cracking Direct Assessment Evaluation Services (SCCDA)

extra Services

NACE 4-Step Direct Assessment Process:


  • Data gathering and evaluation
  • Feasibility studies
  • Assessment recommendations

Indirect Examination with Cathodic Protection Surveys

  • Close Interval Survey (CIS)
  • Direct Current Voltage Gradient (DCVG)

Direction Examination

  • Bell-hole excavation
  • Coating removal and blasting


  • Effectiveness studies
  • Risk-based inspection internal recommendations
  • Cathodic protection system improvements