Philippine Clean Water Act Compliance
Water Quality Monitoring in the Philippines
EnviSynergy manages effluent, receiving water, groundwater, and marine water quality monitoring against the Water Quality Guidelines and General Effluent Standards of DAO 2016-08, as updated by DAO 2021-19.
Request a ConsultationWater Quality Requirements for Establishments and Projects
Under the Philippine Clean Water Act of 2004 (RA 9275) and its Implementing Rules and Regulations (DAO 2005-10), establishments that discharge wastewater must hold a Discharge Permit and meet the General Effluent Standards. DAO 2016-08 sets the Water Quality Guidelines by water body classification and the General Effluent Standards. DAO 2021-19 updated the guidelines and standards for selected parameters, including ammonia, boron, copper, fecal coliform, phosphate, and sulfate.
Under DAO 2016-08, establishments monitor the effluent parameters determined to be significant to their operations, known as Significant Effluent Quality Parameters, and report the results through the Self-Monitoring Report. ECC holders may also be required to monitor receiving waters, groundwater, or marine waters as a condition of their ECC.
EnviSynergy designs monitoring programs around these requirements, coordinates sampling and analysis with EMB-recognized laboratories, and evaluates results against the standard that applies to the receiving water body classification.
Water Monitoring Services
Effluent Monitoring
Sampling and evaluation of treated wastewater before discharge.
- Identification of Significant Effluent Quality Parameters
- Comparison against General Effluent Standards for the receiving water classification
- Wastewater treatment performance review
Surface Water Quality Monitoring
Monitoring of rivers, lakes, and other freshwater receiving bodies upstream and downstream of discharge points.
- Station siting relative to outfalls
- Evaluation against Water Quality Guidelines by water body class
- EIA baseline characterization
Groundwater Monitoring
Monitoring of wells and groundwater sources where required by ECC conditions or site risk.
- Monitoring well network review
- Baseline and periodic sampling
- Contamination screening
Marine and Coastal Water Monitoring
Monitoring of coastal and marine waters for ports, coastal developments, and offshore projects.
- Marine water classification (SA to SD)
- Turbidity and sediment monitoring during construction
- EIA baseline surveys
Discharge Permit Support
Technical requirements for new and renewed Wastewater Discharge Permits under RA 9275.
- Wastewater characterization
- Treatment facility documentation
- LLDA requirements for the Laguna de Bay Region
Self-Monitoring Report (SMR) Water Module
Preparation of the water quality section of the Self-Monitoring Report under DAO 2003-27.
- Effluent results compilation
- Treatment facility operating records
- Exceedance analysis and corrective actions
Legal Basis
| Issuance | Relevance |
|---|---|
| RA 9275 | Philippine Clean Water Act of 2004. |
| DAO 2005-10 | Implementing Rules and Regulations of RA 9275, including the Discharge Permit requirement. |
| DAO 2016-08 | Water Quality Guidelines and General Effluent Standards of 2016. |
| DAO 2021-19 | Updated Water Quality Guidelines and General Effluent Standards for selected parameters. |
| DAO 2003-27 | Preparation and submission of the Self-Monitoring Report (SMR). |
Full texts and recent issuances are available in the DENR Policies database.
How We Deliver a Monitoring Program
- 1
Requirement Review
Discharge Permit conditions, ECC conditions, and the classification of the receiving water body are reviewed to define the applicable standards.
- 2
Program Design
Sampling points, parameters, methods, and frequency are documented in a monitoring plan.
- 3
Sampling and Analysis
Samples are collected and analyzed with EMB-recognized laboratories.
- 4
Evaluation
Results are compared against the applicable guidelines and standards, and exceedances are traced to likely causes.
- 5
Reporting
Findings are prepared for the SMR, the ECC Compliance Monitoring Report, or the EIA document, as applicable.
Frequently Asked Questions
Related Guides
Plan Your Water Quality Monitoring Program
EnviSynergy Corporation is a DENR-EMB registered EIS preparer (CFCO-0045) serving project proponents and establishments across the Philippines.
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