The Key Government Bodies Responsible for Water Safety
Understanding who does what helps you know where to go for testing, complaints and information:
Department of Public Health Engineering (DPHE)
The DPHE is the primary government agency responsible for rural water supply and sanitation in Bangladesh. Its key roles include:
- Operating and maintaining rural tubewells and water supply schemes
- Conducting arsenic and water quality testing in rural areas
- Distributing colour-coded tubewell safety indicators (red = unsafe arsenic levels, green = tested safe)
- Providing technical standards for water supply infrastructure
What DPHE can do for you: If you are in a rural area and suspect your tubewell water has elevated arsenic, contact your local DPHE office. They conduct testing either free or at low cost and can advise on alternative safe water sources in your area.
Dhaka Water Supply and Sewerage Authority (DWASA)
DWASA is responsible for water supply and sewerage in the Dhaka metropolitan area. It operates treatment plants, manages the distribution network, and is responsible for meeting water quality standards at the point of consumer connection.
The gap between standards and reality: DWASA publishes water quality standards for treated supply. The treated water leaving the plant may meet standards. However, the distribution network — aging pipes, cross-connections with sewage lines, pressure fluctuations that draw in groundwater during supply interruptions — frequently compromises water quality between the plant and your tap. Compliance at the plant does not guarantee compliance at the consumer's tap.
What DWASA can do for you: File a formal water quality complaint at any DWASA customer service centre. DWASA has an obligation to investigate supply quality complaints and take remedial action.
Bangladesh Standards and Testing Institution (BSTI)
BSTI sets and enforces product standards in Bangladesh, including standards for:
- Bottled drinking water (BDS 1150)
- Water purifier equipment and performance claims
- Water testing laboratory procedures
What BSTI can do for you: If a water purifier brand is making false performance claims (claiming a rejection rate the product does not achieve), this falls under BSTI's consumer protection mandate. Formal complaints can be filed.
Institute of Public Health (IPH)
IPH operates water quality testing laboratories and conducts water safety research. For households seeking comprehensive independent water quality analysis, IPH laboratories in Dhaka and Chittagong are among the most reliable options.
Bangladesh's National Drinking Water Standards
Bangladesh has two parallel standards for drinking water quality:
ECR 1997 (Bangladesh National Standard)
The Environment Conservation Rules 1997 set maximum permissible limits for drinking water in Bangladesh. Key parameters:
| Parameter | Bangladesh Standard (ECR 1997) | WHO Guideline |
|---|---|---|
| Arsenic | 50 µg/L | 10 µg/L |
| Lead | 50 µg/L | 10 µg/L |
| Nitrate | 10 mg/L (as N) | 11 mg/L (as N) |
| Fluoride | 1.0 mg/L | 1.5 mg/L |
| Iron | 0.3–1.0 mg/L | 0.3 mg/L |
| TDS | 1000 mg/L | 600 mg/L (aesthetic) |
| Turbidity | 10 NTU | 1 NTU |
| pH | 6.5–8.5 | 6.5–8.5 |
| E. coli | 0 per 100ml | 0 per 100ml |
| Chlorine residual | 0.2–0.5 mg/L | 5 mg/L (maximum) |
The arsenic gap: Bangladesh's arsenic standard of 50 µg/L is five times more permissive than the WHO guideline of 10 µg/L. This means water classified as "safe" by Bangladesh's national standard may still pose significant long-term health risks. Many water safety advocates recommend using the WHO standard (10 µg/L) as the personal household target regardless of the national standard.
Your Consumer Rights Regarding Water Quality
As a water consumer in Bangladesh, you have several legally supported rights:
Right to Safe Water Supply
Under the Water Supply and Sewerage Authority Act and related regulations, public water supply authorities are obligated to supply water meeting the ECR 1997 standards. If your supplied water consistently fails to meet these standards, you have grounds for a formal complaint.
Right to Information About Water Quality
You can request water quality test reports from DWASA and other public water suppliers. These are public documents. Annual water quality reports should be published by major utilities.
Right to File Consumer Complaints
Under the Consumer Rights Protection Act 2009, you can file complaints against:
- Water utilities supplying water below standard quality
- Bottled water brands whose products fail to meet BDS 1150 standards
- Water purifier manufacturers making false performance claims
File complaints at the Directorate of National Consumer Rights Protection (DNCRP) offices.
How to Use Government Testing Services
DPHE district offices provide tubewell testing in rural areas. For urban households wanting independent laboratory testing of their water, the following government laboratories accept public samples:
- IPH Laboratory, Dhaka — comprehensive water quality analysis including heavy metals, bacteria, and chemical parameters
- BUET Environmental Engineering Laboratory — specialised testing for research-grade analysis
- DPHE district labs — basic parameters including arsenic, bacteria, and TDS
Process: Contact the laboratory for current testing fees and sample collection protocols. For bacterial testing, sterile sample containers are provided by the lab. Deliver samples within 4–6 hours of collection.
What the Regulatory Framework Cannot Do For You
Understanding the limits of government regulation is as important as understanding what it covers:
- Regulation does not guarantee your household water is safe — compliance is tested at the supply point, not your tap. Your in-home plumbing can introduce contamination after the compliance point.
- The arsenic standard is not adequately protective — the national standard is 5x more permissive than WHO. Meeting the national standard does not mean zero health risk from arsenic.
- Enforcement is inconsistent — laboratory testing capacity and enforcement resources are limited, particularly for private water suppliers and bottled water brands in smaller markets.
- Your responsibility: The regulatory framework is a baseline, not a guarantee. Your household water testing, the maintenance of your purification equipment, and your safe storage practices are the most reliable protections for your family's health.
The most practical use of government resources for most households is DPHE's arsenic testing service in affected areas — it provides objective data about your specific water source at low or no cost, which is the foundation of any rational purification decision.