Sewage into SWDs – Action on property owners – Bengaluru

Sewage into SWDs – Action on property owners – Bengaluru

Sewage into SWDs – Sewage water is being let into the SWD’s in Bengaluru by 497 properties. The Bengaluru Water Supply and Sewage Board (BWSSB) has issued notices to 389 of the property owners in namma Bengaluru ranging from houses to business establishments.

Bengaluru Topography :

Bengaluru is draped over the Deccan Plateau at an altitude of 949 meters (3113 ft.) above sea level, which gives it possibly the best climate among all the cities in India. Legend has it that Bengaluru  got its name from the words “BendhaKaaLu” (which means boiled beans in the local language Kannada).

King VeeraBallala of the Vijayanagara kingdom was once lost in a forest and happened to stumble upon a lonely cottage. An old woman that lived there could offer the starving king only boiled beans “BendhakaaLu” and the place came to be known as “BendhakaaLuooru” (ooru in Kannada means a city).

BendhakaaLooru later came to be known as BengaLooru in Kannada and Bangalore in English. However, historical evidence shows that “BengaLooru” was recorded much before King Ballala’s time in a 9th century temple inscription in the village of Begur. Even today “BengaLooru” exists within the city limits in Kodigehalli area and is called as “HalebengaLooru” or “Old Bangalore.”

Bangalore water supply and Sewage board :

The Bangalore Water Supply and Sewerage Board (BWSSB) is the premier governmental agency responsible for sewage disposal and water supply to namma Bengaluru.. It was formed in 1964.

BWSSB currently supplies approximately 900 million liters (238 million gallons) of water to the city per day, despite a municipal demand of 1.3 billion liters. Water for the city (with a population of 10 million) comes from a number of sources, with 80% of it coming from the Cauvery river.  Water is also drawn from the Arkavathy river, but the supply does not meet the demand.

Storm water drains – sewage seeping in:

A storm water drain is an infrastructure designed to drain excess rain and ground water from impervious surfaces such as paved streets, car parks, parking lots, footpaths, sidewalks, and roofs. Storm drains vary in design from small residential dry wells to large municipal systems.

Drainage/Sewage and storm water in the same drain

Drains receive water from street gutters on most motorways, freeways and other busy roads, as well as towns in areas with heavy rainfall that leads to flooding  and coastal towns with regular storms.  Even gutters from houses and buildings can connect to the storm drain.

Many storm drainage systems are gravity sewers  that drain untreated storm water into rivers or streams — so it is unacceptable to pour hazardous substances into the drains.  Storm drains often cannot manage the quantity of rain that falls in heavy rains or storms.  Inundated drains can cause basement and street flooding.

In many areas require detention tanks inside a property that temporarily hold runoff in heavy rains and restrict outlet flow to the public sewer. This reduces the risk of overwhelming the public sewer. Some storm drains mix storm water (rainwater) with sewage,  either intentionally in the case of combines sewers, or unintentionally.

Relationship to sanitary sewer systems :

Storm drains are separate and distinct from sanitary sewer systems. The separation of storm sewers from sanitary sewers helps prevent sewage treatment plants becoming overwhelmed by infiltration/inflow during a rainstorm, which could discharge untreated sewage into the environment.

Many storm drainage systems drain untreated storm water into rivers or streams. Many local governments conduct public awareness campaigns about this, lest people dump waste into the storm drain system.

Combined sewers :

Cities that installed their sewage collection systems before the 1930s typically used single piping systems to transport both urban runoff and sewage. This type of collection system is referred to as a combined sewer system (CSS).

The cities’ rationale when combined sewers were built was that it would be cheaper to build just a single system. In these systems a sudden large rainfall that exceeds sewage treatment capacity is allowed to overflow directly from storm drains into receiving waters via structures called combined sewer overflows.

Contaminated water enters storm water drain

Storm drains are typically at shallower depths than combined sewers; because, while storm drains are designed to accept surface runoff from streets, combined sewers were designed to also accept sewage flows from buildings with basements

The BBMP vs BWSSB ‘passing the parcel’ game :

When it rains in Bengaluru, the rajakaluves or storm water drains will overflow as there is no scope for the water to seep into the ground.  The biggest problem is that the BBMP is in charge of storm water drains, while the BWSSB is responsible for managing Bengaluru’s sewage system.

Both BBMP and BWSSB are passing the buck.  It has been decades and no one is bothered to rectify the city’s sewage and storm water drain system.

So many sewage lines are connected to the Storm Water Drains.  People have been ranting about this issue and the agencies are not doing anything.

Notice to property owners – Sewage into SWDs :

The BWSSB has sent notices to 389 property owners and is in the process of puling up the remaining ones.  The details of the violation has been sent to the Karnataka State Pollution Control Board.

Apartment’s sewage water seeping into the storm water drain

The notice issuance is in the wake of the National Green Tribunal’s direction to the Karnataka State Government.  The direction is to take action and to plan to put an end to the contamination of run-off rainwater in SWDs.

Some of the Property owners – Sewage to SWDs :

Many apartment owners like Pebble Creak, Brooke Enclave on ITPL Main road, Chaitanya Prestige Shantiniketan on Whitefield road, Gopalan enclave on ECC road.  `

The educational institutions are also included in the list.  They are Shree Chaitanya Techno School in Mahalakshmi layout and also a number of paying guest accommodations in Ambedkar Nagar.

Apartment’s sewage discharge

The eastern part of Bengaluru top the list with 276 properties violating the rules. The BWSSB board is imposing a fine of Rs.5000 to violators all these time.  But now the BWSSB board wants to take the opinion of the legal cell to take serious action.

Option to property owners – Sewage connection :

Those property owners who are willing to follow the rules, the board will be imposing a penalty and to apply for the sewage connection.    The board is planning to take property owners who are violating to the court.  According to the Board KSPCB (Karnataka State Pollution Control Board) can file criminal cases against violators.

Legal actions will be taken against large apartment owners if found guilty .  Even individual houses will not be spared.

Need of the hour :

The unauthorized, rampant encroachment of marshlands and bugger zones of lakes, obstruction sewer pipes and manholes, encroachment of store water pipes, garbage dumped in the Storm Water Drains have blocked the outlets of rainwater.

What is needed in namma Bengaluru is a need of a shared project with the Bangalore Water Supply and Sewerage Board to have all the sewage go into trunk sewers on either side of the drain. The reason Bengaluru has faced floods is there is no place for sewage, which flows back into lakes.

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