Background
As part of its institutional function for industrial pollution oversight, the Ministry of Environment deployed on-site automated monitoring devices to measure effluent discharges at selected private facilities. On 24 September 2026 the Ministry of Environment equipped 64 companies with automated effluent-monitoring devices.
The automated monitoring systems reported a combined daily volume of 71,395 cubic metres of treated liquid waste from the equipped sites. The ministry’s deployment includes a four-colour classification framework to indicate monitored discharge status across facilities.
Scope of Application
The deployment applied to 64 industrial facilities that were fitted with automated effluent-monitoring equipment as of 24 September 2026. Monitored parameters listed by the ministry include pH (potential hydrogen), COD (chemical oxygen demand), and TSS (total suspended solids), which are standard metrics used to assess wastewater quality and treatment performance.
Key Provisions or Decisions
The Ministry published a status breakdown by colour code for the equipped facilities: 61 companies were marked green (compliant with monitored discharge standards), 3 companies were marked yellow (subject to follow-up monitoring), 0 companies were marked red (subject to inspection), and 8 companies were marked white (undergoing repairs or maintenance of monitoring/reporting equipment). The ministry also reported the total daily volume of treated liquid waste recorded by the automated systems for that reporting day.
Implications for Investors, Businesses, or Compliance
Facilities classified green were recorded as meeting the monitored discharge standards at the time of measurement and are documented in ministry monitoring records. Facilities in the yellow category are under continued observation to confirm whether monitored parameters remain within acceptable ranges, while white-category entries indicate that monitoring or treatment equipment required maintenance before normal reporting could resume. Investors and compliance teams can use the classification outcomes and measured parameter sets (pH, COD, TSS) as operational baselines when assessing environmental performance at these sites.
Official Source
Ministry of Environment Facebook post, 24 September 2026: https://www.facebook.com/MinistryOfEnvironmentCambodia/posts/pfbid0Un9P3Z1VrVf3JdxNwUBkZtMpGSLgrsYXXb3wDamgiesXx64Q7YuXmFiB8kXR1wBEl
