Background
The Ministry of Environment reported aggregated measurements from industrial effluent monitors as part of its wastewater oversight activities and public compliance reporting. As of 26 June 2026, 59 companies had installed automatic liquid-waste monitoring equipment and the recorded daily treated effluent volume from monitored devices was 71,395 cubic metres.
Automatic monitoring devices used under the programme capture standard discharge parameters including pH, chemical oxygen demand (COD) and total suspended solids (TSS), which are central metrics for assessing treatment performance. The Ministry classifies participating firms by a colour-coded status to indicate measured compliance, monitoring attention, inspection priority, or equipment repair needs.
Scope of Application
The reported monitoring covers industrial entities that have equipped their discharge points with automatic data-logging devices and are submitting measurements to the Ministry of Environment. The figures reflect on-site monitoring of direct liquid effluent dischargers rather than ambient water-quality sampling of receiving waterways.
Key Provisions or Decisions
The Ministry’s reported status breakdown for the monitored firms is: 48 companies in the green category (compliant with standards), 1 company in yellow (under monitoring), 1 company in red (subject to inspection), and 9 companies in white (equipment under repair). The Ministry provides definitions for pH, COD and TSS to clarify the parameters used in compliance assessment.
Implications for Investors, Businesses, or Compliance
Companies that implement and maintain automatic effluent monitoring can generate continuous data to demonstrate operational compliance with discharge standards. Investors and operators can use the Ministry’s published monitoring counts and status categories as baseline indicators of sector compliance and technical reliability of onsite treatment systems.
Official Source
Data and status summary published by the Ministry of Environment on 28 June 2026: https://www.facebook.com/MinistryOfEnvironmentCambodia/posts/pfbid02x83XdRotf9Gr2xvDWCAWMNHDrfbuaEDxVsuMKBocCW3rsj4SQys3kbD7sGJ5LYmJl
