

STP outside Saul Kere lake, not inside it.
The Issue
Urgent attention:
Save Saul Kere (Sowl Kere): Protect Bengaluru’s Natural Protection Against Floods
Saul Kere is not just a lake adding scenic beauty. It is a critical natural flood-mitigation and stormwater storage system for Bengaluru.
Saul Kere sits at the bottom of an approximately 24 sq km watershed, receiving water through a cascade of 13 interconnected lakes and water bodies.
If treated STP water is discharged into Saul Kere 365 days a year, where will the lake retain the stormwater and cascading waters arriving during extreme rainfall?
A continuous flow of treated wastewater reduces Saul Kere’s capacity to absorb sudden stormwater, causing flooding, traffic disruption and safety hazards for surrounding communities on the Outer Ring Road like Eco World and more, while altering the lake’s ecology and affecting its biodiversity. Permanent infrastructure and ecological changes can cause irreversible damage.
We must address the root cause, not sacrifice the lake!
Proposed Solution
BBMP and BWSSB must jointly identify and fix upstream sewage connections and systemic SWD engineering failures across the city, rather than relying on reactive retrofits after urbanisation has overwhelmed existing infrastructure. Buffer zones meant to accommodate lake-related infrastructure must be protected from encroachment. Where required, diversion drains should be enlarged and upgraded to safely carry increasing sewage flows from upstream settlements.
We support sewage treatment, clean lakes and better sanitation but not a large STP within Saul Kere’s lake and wetland area.
We demand:
- Stop the proposed STP inside Saul Kere.
- Conduct an independent hydrological and engineering assessment of the 24 sq km watershed and 13-lake cascade.
- Assess the implications of Saul Kere having only one functioning outlet.
- Identify and fix the root causes of sewage entering stormwater drains.
- Study systemic SWD engineering failures across Bengaluru.
- Restore and protect lake buffer zones and prevent further encroachment.
- Upgrade diversion drains to handle increased upstream sewage flows.
- Identify alternative locations for sewage infrastructure outside the lake’s flood-storage area.
- Publish flood modelling and environmental assessments before any irreversible construction.
Please sign and share this petition.
Important Links:
For detailed information:
https://saulkerelake.blogspot.com/2026/08/stop-construction-of-stp-inside-saul.html
https://saulkerelake.blogspot.com/2026/08/why-bengalurus-lakes-should-not-become.html?m=1
https://veenasrinivasan.substack.com/p/is-bringing-treated-wastewater-into

2,632
The Issue
Urgent attention:
Save Saul Kere (Sowl Kere): Protect Bengaluru’s Natural Protection Against Floods
Saul Kere is not just a lake adding scenic beauty. It is a critical natural flood-mitigation and stormwater storage system for Bengaluru.
Saul Kere sits at the bottom of an approximately 24 sq km watershed, receiving water through a cascade of 13 interconnected lakes and water bodies.
If treated STP water is discharged into Saul Kere 365 days a year, where will the lake retain the stormwater and cascading waters arriving during extreme rainfall?
A continuous flow of treated wastewater reduces Saul Kere’s capacity to absorb sudden stormwater, causing flooding, traffic disruption and safety hazards for surrounding communities on the Outer Ring Road like Eco World and more, while altering the lake’s ecology and affecting its biodiversity. Permanent infrastructure and ecological changes can cause irreversible damage.
We must address the root cause, not sacrifice the lake!
Proposed Solution
BBMP and BWSSB must jointly identify and fix upstream sewage connections and systemic SWD engineering failures across the city, rather than relying on reactive retrofits after urbanisation has overwhelmed existing infrastructure. Buffer zones meant to accommodate lake-related infrastructure must be protected from encroachment. Where required, diversion drains should be enlarged and upgraded to safely carry increasing sewage flows from upstream settlements.
We support sewage treatment, clean lakes and better sanitation but not a large STP within Saul Kere’s lake and wetland area.
We demand:
- Stop the proposed STP inside Saul Kere.
- Conduct an independent hydrological and engineering assessment of the 24 sq km watershed and 13-lake cascade.
- Assess the implications of Saul Kere having only one functioning outlet.
- Identify and fix the root causes of sewage entering stormwater drains.
- Study systemic SWD engineering failures across Bengaluru.
- Restore and protect lake buffer zones and prevent further encroachment.
- Upgrade diversion drains to handle increased upstream sewage flows.
- Identify alternative locations for sewage infrastructure outside the lake’s flood-storage area.
- Publish flood modelling and environmental assessments before any irreversible construction.
Please sign and share this petition.
Important Links:
For detailed information:
https://saulkerelake.blogspot.com/2026/08/stop-construction-of-stp-inside-saul.html
https://saulkerelake.blogspot.com/2026/08/why-bengalurus-lakes-should-not-become.html?m=1
https://veenasrinivasan.substack.com/p/is-bringing-treated-wastewater-into

The Decision Makers
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Petition created on 21 August 2026