Background
Continuous automated monitoring devices provide real-time surveillance of industrial effluent quality and support verification of compliance with national discharge limits. Automatic wastewater monitoring systems measure effluent parameters such as pH, chemical oxygen demand (COD), and total suspended solids (TSS) in real time.
The Ministry of Environment reported on 29 August 2026 that 64 companies were equipped with automatic wastewater monitoring devices and that daily treated wastewater recorded from those systems totalled 71,395 cubic meters. The Ministry uses a colour-coded classification to indicate operational status and compliance levels for facility monitoring data.
Scope of Application
The reported installation applies to 64 industrial wastewater dischargers identified by the Ministry of Environment in its August 2026 update. Monitored parameters referenced by the Ministry include pH, COD and TSS, which are commonly used to assess effluent treatment performance against discharge standards.
Key Provisions or Decisions
The Ministry recorded the operational status of the 64 monitored facilities with the following breakdown: 56 companies classified as compliant (green), 5 companies flagged for monitoring (yellow), 2 companies designated for inspection (red), and 9 companies listed for repair (white). The daily aggregate volume of treated wastewater reported from the installed monitoring equipment was 71,395 cubic meters.
Implications for Investors, Businesses, or Compliance
Businesses operating industrial wastewater systems can expect that continuous monitoring will produce daily discharge records that are used by regulators to assess technical performance. Facilities identified outside the compliant category may require technical maintenance or operational adjustments to meet permitted discharge indicators for pH, COD and TSS.
Official Source
Ministry of Environment Facebook post dated 29 August 2026: https://www.facebook.com/MinistryOfEnvironmentCambodia/posts/pfbid02LZKRTVBtcnHAXxtTxustbHYF9fbDBL266DxD6qQLS8cLNrVsFRtye5EQZU6sNJn6l
