What Happened
- The Comptroller and Auditor General (CAG) of India has flagged a 32-fold increase in coliform bacteria levels in the Ganga river in Uttarakhand, attributing this to the discharge of untreated sewage from towns and cities along the river.
- The CAG report documents significant failures in the implementation of Sewage Treatment Plants (STPs) under the Namami Gange programme, particularly in priority towns including Haridwar and Rishikesh.
- Key findings include: STP capacity at Haridwar and Rishikesh is inadequate for actual waste discharge; STPs at Devprayag and Rishikesh are under-utilised due to deficient planning and poor coordination between executing agencies; 65 out of 112 identified nullahs (drains) in priority towns were still not tapped, allowing 26.292 million litres per day (MLD) of untreated sewage to flow directly into the Ganga or its tributaries.
- The CAG report has been tabled before the Uttarakhand state legislature, making its findings part of the official public accountability record.
- The findings are significant because Uttarakhand contains the Ganga's upper reaches — including its origin at Gangotri and major pilgrimage towns — meaning pollution here affects water quality for hundreds of millions of people downstream across Uttar Pradesh, Bihar, and West Bengal.
Static Topic Bridges
Namami Gange Programme: Scope and Objectives
Namami Gange (literally "Obeisance to the Ganga") is an Integrated Conservation Mission launched by the Government of India in June 2014 with a budget of ₹20,000 crore for the period 2015-2020, subsequently extended and expanded. It is the flagship river rejuvenation programme under the National Mission for Clean Ganga (NMCG), which operates under the Ministry of Jal Shakti. The programme consolidates all previous Ganga cleaning efforts including the Ganga Action Plan (GAP) I (1986) and GAP II (1993), which were widely regarded as failures.
- Namami Gange has a target of cumulative sewage treatment capacity of 7,000 MLD by December 2026.
- Key components: sewage treatment infrastructure; industrial effluent management; solid waste management on riverbanks; afforestation; biodiversity conservation; and public awareness.
- The programme operates across five states in the Ganga basin: Uttarakhand, Uttar Pradesh, Bihar, Jharkhand, and West Bengal — covering the river's entire 2,525 km course.
- The Ganga receives approximately 3,000 MLD of sewage from towns along its banks; only a fraction is treated before discharge.
- A previous CAG audit (2017) found only 8-63% fund utilisation during 2014-17 and ₹2,134 crore lying unutilised with NMCG.
Connection to this news: The latest CAG findings reveal that despite a decade of Namami Gange, even the programme's priority towns in the river's headwater state have not achieved adequate sewage treatment — raising fundamental questions about implementation quality and project management.
Coliform Bacteria as a Water Quality Indicator
Coliform bacteria are a broad group of microorganisms used as indicators of fecal contamination in water bodies. The presence of fecal coliforms (particularly E. coli) signals that sewage or animal waste is entering a water body and that pathogens causing cholera, typhoid, dysentery, and hepatitis A may also be present. The Bureau of Indian Standards (BIS) and the Central Pollution Control Board (CPCB) use coliform counts as primary indicators of drinking water safety and river health.
- The CPCB classifies river water quality into five categories (A through E) based on designated best use:
- Class A: Drinking water (after conventional treatment); coliform should not exceed 50 MPN/100 ml.
- Class B: Outdoor bathing; coliform limit 500 MPN/100 ml.
- Class C: Drinking water (after advanced treatment); 5,000 MPN/100 ml.
- Classes D and E: Industrial and irrigation use only.
- A 32-fold increase in coliform bacteria means levels have risen from whatever the baseline was to 32 times that value — if baseline was Class B range (500 MPN/100 ml), current levels could reach 16,000 MPN/100 ml, placing the river in Class D/E.
- Coliform proliferation is directly caused by untreated sewage discharge — each untapped nullah discharging into the Ganga introduces billions of fecal coliforms per litre.
- Seasonal variation matters: during Kumbh Mela and other pilgrimage seasons at Haridwar and Rishikesh, millions of pilgrims bathe in the Ganga; high coliform levels pose acute public health risks at these events.
Connection to this news: The CAG's coliform finding is not merely a technical statistic but a direct measure of public health failure — it means the Ganga at Uttarakhand's sacred ghats is biologically unsafe for the bathing use for which it is revered.
CAG: Constitutional Mandate and Audit Significance
The Comptroller and Auditor General of India (CAG) is a constitutional authority established under Article 148 of the Constitution, appointed by the President of India and removable only through a process equivalent to that for removing a Supreme Court judge — ensuring independence from the executive it audits. The CAG audits all receipts and expenditures of the Union and state governments, including those of autonomous bodies substantially financed by government funds. Its reports are tabled before Parliament (for Union accounts) and state legislatures (for state accounts) and are examined by the Public Accounts Committee (PAC).
- Constitutional basis: Articles 148-151 of the Constitution; operational framework under the CAG (Duties, Powers and Conditions of Service) Act, 1971.
- The CAG conducts three types of audits: financial audit (compliance with appropriation), performance audit (efficiency and effectiveness), and propriety audit (whether expenditure was in public interest).
- The Namami Gange CAG audit is a performance audit — it examines whether the programme achieved its stated objectives relative to funds spent.
- CAG reports do not have legally binding enforcement power — their findings are recommendations that Parliament/state legislatures can direct the executive to act upon through the PAC process.
- CAG findings on Namami Gange (2017 report) revealed systemic issues: underutilisation of funds, project delays, non-functional STPs — the latest report indicates these structural problems persist nearly a decade later.
Connection to this news: The tabling of this CAG report in the Uttarakhand legislature triggers the PAC process — the state government must respond to each CAG observation — making these findings a formal accountability mechanism for Namami Gange implementation failures.
Sewage Treatment Infrastructure Gap in India
India faces a massive sewage treatment infrastructure deficit. According to CPCB data, India's urban areas generate approximately 72,368 MLD of sewage daily, but the installed treatment capacity is only around 31,841 MLD — meaning less than half the sewage generated can even theoretically be treated. Actual utilisation is lower still, as many STPs operate below capacity due to power supply issues, staffing problems, and design-operation mismatches.
- The National River Conservation Plan (NRCP) and Namami Gange together have the mandate to create sewage treatment capacity for Ganga basin towns, but actual capacity creation has lagged significantly behind targets.
- Faecal sludge from septic tanks (covering ~30% of urban India) adds to river pollution loads outside the STP network.
- Industrial effluents — particularly from tanneries, textile mills, paper mills, and distilleries — compound the sewage problem; 764 "grossly polluting industries" (GPIs) discharge into Ganga tributaries.
- The Zero Liquid Discharge (ZLD) norm, which requires industries to treat and reuse all effluent internally, was mandated for Ganga basin industries in 2017 but compliance remains inconsistent.
- The Centre's target of 7,000 MLD treatment capacity under Namami Gange Phase 2 by December 2026 requires rapid acceleration from current levels.
Connection to this news: Uttarakhand's failure to tap 65 of 112 identified drains is not an isolated state-level failure but reflects the nationwide pattern of gap between STP capacity creation and actual connection of drains to that capacity.
Key Facts & Data
- CAG finding: 32-fold increase in coliform bacteria levels in Ganga in Uttarakhand.
- 65 of 112 identified nullahs in priority towns remain untapped, discharging 26.292 MLD of untreated sewage.
- Namami Gange budget: ₹20,000 crore (2015-2020); extended under Phase 2 with target of 7,000 MLD treatment capacity by December 2026.
- India's daily urban sewage generation: ~72,368 MLD; installed treatment capacity: ~31,841 MLD (less than 50%).
- CPCB Class A water (safe for drinking): coliform not to exceed 50 MPN/100 ml; Class B (bathing): 500 MPN/100 ml.
- Previous CAG audit (2017): ₹2,134 crore unutilised with NMCG; only 8-63% of funds utilised during 2014-17.
- Constitutional basis for CAG: Articles 148-151 of the Constitution of India.
- Ganga total length: 2,525 km across 5 states; Uttarakhand contains the headwaters (Gangotri to Haridwar).