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CAG Audit Finds 32-Fold Coliform Rise, 32% STPs Discharging Untreated Sewage in Ganga Under Namami Gange (2018-23)

Target:UPSC GS-IIIMPSCSSC GATeachingPrelims HighMains MediumStatic GK Link
10 Mar 2026
~2 min
Source: Indian Express
Key Data:32-fold coliform increase32% STPs discharging untreated sewageRs 55.08 crore state expenditure6% urban landscape progress
Bodies:CAGNGTUttarakhand Pollution Control BoardNational Mission for Clean GangaUttarakhand Peyjal Nigam
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What This Article Covers

1.CAG audit of Namami Gange in Uttarakhand (2018-23) flags a 32-fold increase in coliform bacteria between Devprayag and Haridwar.

2.32% of inspected STPs were discharging untreated sewage into the Ganga, with most failing to comply with NGT/GoI norms.

3.The audit exposes governance gaps: no district-level river basin plans, inadequate monitoring via Ganga Tarang Portal, and symbolic STPs not connected to households.

The Big Picture
Prelims · HighMains · Medium

A CAG performance audit of the Namami Gange Programme in Uttarakhand (2018-23) reveals severe pollution control failures. Key findings include a 32-fold increase in coliform bacteria, 32% of STPs discharging untreated sewage, and significant non-compliance with NGT norms, highlighting systemic governance lapses in river conservation.

Exam Lens

Quick Exam Facts From News

Coliform Increase32-fold between Devprayag and Haridwar (as of Oct 2023)
STPs Discharging Untreated Sewage32% (12 out of 37 inspected)
Audit Period2018 to 2023
State Expenditure on SewageRs 55.08 crore (State Sector Scheme, 2018-23)
Physical Progress (Urban Landscape)Only 6% of planned target achieved

1-Minute Revision

  • ›Coliform Increase: 32-fold between Devprayag and Haridwar (as of Oct 2023)
  • ›STPs Discharging Untreated Sewage: 32% (12 out of 37 inspected)
  • ›Target this Data: 32-fold increase in coliform bacteria between Devprayag and Haridwar (as of Oct 2023).
  • ›Target this Nodal Body: Comptroller and Auditor General of India (CAG).
  • ›Target this Legal Point: Non-compliance with National Green Tribunal (NGT) norms by STPs.

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Q1Static LinkageEasy

Which constitutional body tabled the audit report on the Namami Gange Programme in the Uttarakhand Assembly?

Q2Statement-basedHard

Consider the following statements regarding the CAG audit of Namami Gange in Uttarakhand:

1. The audit found a 32-fold increase in coliform bacteria in the Ganga between Devprayag and Haridwar.

2. All Sewage Treatment Plants (STPs) inspected were compliant with the norms of the National Green Tribunal.

3. District Ganga Committees prepared river basin management plans for all districts through which the Ganga flows in Uttarakhand.

Which of the statements given above is/are correct?

Q3Data-centricMedium

According to the CAG audit, what percentage of the inspected Sewage Treatment Plants (STPs) were discharging untreated sewage into the Ganga and its tributaries?

Q4Application/ImpactMedium

What was a major reason cited in the CAG audit for the increase in coliform bacteria in the river Ganga?

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