Hazardous-Waste Landfill Environmental Safety Assessment
Background
A hazardous-waste landfill in East China — ~80,000 m² double-HDPE composite liner in service for over 15 years — required a systematic safety assessment as concerns mounted over long-term liner integrity and environmental safety.
Challenge
Detecting subtle defects beneath a double-liner system, beneath cover and after 15 years of stress, while integrating leachate, groundwater and gas evidence into an overall safety verdict.
Solution
Full-coverage ELMD electrical leak detection on the basal liner; multi-parameter leachate analysis; comprehensive sampling across surrounding groundwater wells; and gas-migration mapping — combined into a complete chain of safety evidence.
Results
Liner system found largely intact with only minor localized anomalies
Issued a complete safety performance report supporting operations and risk control
Recommended targeted repair and enhanced monitoring of anomaly zones
Client refined operational strategy to further reduce environmental risk
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