Lakes of Bendakaluru

Satellite view: Esri, Maxar, Earthstar Geographics

Kachohalli Kere

ಕಾಚೋಹಳ್ಳಿ ಕೆರೆ

Also called Kachohalli Kere-1

Kere, a large tank, in Kachohalli village, Bengaluru North taluk

See it on the map
Size
51.5 acresAbout 29 football pitches
Rank by size
169th largestOf 1,621 lakes that still exist
Valley
Arkavathi
Who looks after it
ZPZilla Panchayat
Water quality
Fit only for irrigationTested Jul 2026
Built over
0.4% of the lakeSatellite, 2021. The 2018 survey found 2% encroached.

Through the years

Nothing on record for 1909 to 1913, 1915 to 1954, 1956 to 1972 and 1974 to 1983.

The records listed below, drawn on one line from 1908 to 2026.

  1. 1908

    Built

    As the 2018 lake survey records it

    See source

  2. 1914

    On the survey map

    See source

  3. 1955

    On the U.S. Army map

    Compiled from Survey of India maps of 1945-46

    See source

  4. 1973

    On the survey map

    See source

  5. 1984-2021

    Held water most years

    Water in 13% of all satellite passes, 1984-2024

    0.7% of its water area has since gone dry; 0% is new water

    4 years not counted: the satellite saw under half the lake

    Floating weed looks like dry land to this record, so a weed-covered year can read as dry

    See sourceSee source

  6. 2017-2025

    Mostly plants or weed in most years

    Floating weed shows as crops or grass here, not as water

    About three in four of these readings are right, so trust what holds for several years

    See source

  7. 2018

    Still there in the 2018 lake survey

    2% encroached, polluted, 63.0 acres surveyed

    See source

  8. 2023-2026

    Tested by the state board in 34 months, most often fit only for irrigation

    Aug 2023 to Jul 2026

    See every testSee source

  9. 2025-2026

    Mostly floating weed after the monsoon and in the dry season

    After monsoon, Oct 2025 to Dec 2025

    • 0% open water
    • 95% floating weed
    • 5% dry or built

    Dry season, Mar 2026 to May 2026

    • 0% open water
    • 93% floating weed
    • 7% dry or built
    See source

How big it is

The records disagree on its size, so each measure is shown.

Drawn outline
51.5 acres

About 29 football pitches

See source
2018 lake survey
63.0 acres

About 36 football pitches

See source
End to end
745 m

The longest straight line across the outline

See source
Deepest point, 2018
3 m
See source
Kind of lake
Kere, a large tank
See source

How clean the water is

Latest test
Fit only for irrigation

Fit only for irrigation, cooling and waste disposal. Class E on the state board’s scale from A, the cleanest, to E.

Tested Jul 2026

See source
Class each month, tested 34 times since Aug 2023
Fit only for wildlife and fish: 6 months. Fit only for irrigation: 28 months. Every month is listed in the readings below.
Drinkable after disinfection
Fit for bathing
Drinkable after treatment
Fit only for wildlife and fish
Fit only for irrigation
See source
How it looked in 2018
Polluted
See source
What pollutes it, 2018

Agriculture runoff

See source
Sewage flows in, 2018

From the south-east

See source
Older tests
2 readings

From 2021

See source
Inlet and outlet tests, 2017-18
1 readings
See source
Every reading
Show every reading

Latest test, Jul 2026. Too low to measure: boron, carbonate, dissolved oxygen, nitrite, phenolphthalein alkalinity

MeasureUnitValue
Water temperature°C28
pH7
ConductivityµS/cm1,599
BODmg/L60
Nitratemg/L as N6.1
Faecal coliformMPN/100mL7,900
Total coliformMPN/100mL11,000
Bicarbonatemg/L604
TurbidityNTU30
Total alkalinitymg/L as CaCO3604
Chloridemg/L204
CODmg/L256
Kjeldahl nitrogenmg/L as N39
Ammonia nitrogenmg/L as N30
Total hardnessmg/L as CaCO3416
Calcium hardnessmg/L as CaCO3212
Calciummg/L84.8
Magnesium hardnessmg/L as CaCO3204
Magnesiummg/L49.6
Sulphatemg/L74
Sodiummg/L168
Dissolved solidsmg/L1,094
Suspended solidsmg/L36
Phosphatemg/L0.64
Potassiummg/L18
Fluoridemg/L0.44
Sodium share%45
Sodium adsorption ratio3.6
Orthophosphatemg/L1.5

Every month the state board tested it

MonthClassDissolved oxygenmg/LBODmg/LFaecal coliformMPN/100mLTotal coliformMPN/100mLSource
Jul 2026E607,90011,000See source
Jun 2026E0.6396303,500See source
May 2026E0.8453305,400See source
Apr 2026E4822,00049,000See source
Mar 2026E1.4303104,300See source
Feb 2026E1.8782,10013,000See source
Jan 2026E0.9664304,300See source
Dec 2025E1.6281,7007,900See source
Nov 2025E0.5582302,400See source
Oct 2025E1.42633,00079,000See source
Sep 2025D6.542,70,00011,00,000See source
Aug 2025E1.92122,00049,000See source
Jul 2025E562601,400See source
Jun 2025D4.852,3009,400See source
May 2025D5.562,1004,800See source
Apr 2025D5.682102,200See source
Mar 2025E2.2184102,100See source
Feb 2025E257,00054,000See source
Jan 2025E1.8181,7007,000See source
Dec 2024E3045460See source
Nov 2024E152,10011,000See source
Oct 2024E3814,00070,000See source
Sep 2024E1.6224,3006,400See source
Aug 2024E792,10011,000See source
Jul 2024E603,10011,000See source
Jun 2024E503,90017,000See source
May 2024E246,80,00033,00,000See source
Apr 2024E0.59013,00094,000See source
Mar 2024E942,6007,000See source
Feb 2024E1.9182,30,0003,30,000See source
Jan 2024E832,20013,000See source
Dec 2023D4.3746,0003,50,000See source
Oct 2023D4.8848016,000See source
Aug 2023E1247,0001,60,000See source

Older tests

DateWhereReadingWater temperature°CDissolved oxygenmg/LpHConductivityµS/cmBODmg/LNitrate and nitritemg/L as NFaecal coliformMPN/100mLTotal coliformMPN/100mLSource
2021Kachohalli Lake, Kachohalli, Bengaluru North, LakeLowest250.36.328660.63,30024,000See source
2021Kachohalli Lake, Kachohalli, Bengaluru North, LakeHighest255.57.62,280124194,80,00035,00,000See source

Inlet and outlet tests, 2017-18 lake survey

DateWhereWater temperature°CLight transparencycmpHConductivityµS/cmDissolved solidsmg/LSuspended solidsmg/LTurbidityNTUDissolved oxygenmg/LCODmg/LBODmg/LTotal phosphateKjeldahl nitrogenmg/L as NTotal coliformMPN/100mL
2017-11-23Inlet27.337.586564028174.1327.24211,600
See source

How much is built over

Built inside the outline
0.4%

From satellite land cover, 2021

See source
Encroached area, 2017
2.55 acres

Reported by the state legislature’s committee on lake encroachment

See source
Encroached by

Developers

See source
Taken for

Layout

See source
Where it is encroached

On the north side

See source
Dumped in it

Garbage & poult. waste

See source
Other problems noted

Soil Excavation

See source
Land within 500 m

50% built, 23% crops, 13% trees, 9% shrubs, 4% grass, 1% bare ground

From satellite land cover, 2021

See source

Who looks after it

Looked after by
Zilla Panchayat

ZP

See source

Where its water comes from and goes

Valley
Arkavathi

The river basin its water drains to

See source
Water comes from
See source
Overflows into

Byyandanahalli Kere

See source
Catchment
11.5 km²

The land that drains into it

See source
Fed by, 2018 survey

Rain & drain fed

See source
Built parts, 2018 survey

1 inlet drain, 1 overflow weir, no sluice gates, 1 culvert and no islands

See source
Used for, 2018 survey

Irrigation and cattle feeding

See source

What lives here

Birds recorded
27 species

Most seen: Common Myna, Eurasian Marsh-Harrier, Black Drongo, Brahminy Kite and Barn Swallow.

164 sightings, mostly from birdwatchers

See source
All wildlife recorded
27 species

164 records, all in 2020

See source
Water plants, 2018 survey

Emergent and submerged

See source

Around it

Around it in 2018

Layout, settlement, agriculture, garbage dump

See source

Photos

No photos of it on Wikimedia Commons yet.

Where it is

Greater Bengaluru
Outside the city limits
See source
Village
Kachohalli

Dasanapura hobli, Bengaluru North taluk, Bengaluru Urban district

See source
Land survey numbers

54

See source
Height above sea level
860 m
See source
Coordinates

13.0002° N, 77.4660° E

See source

Read more

OpenStreetMap
See source
Its number in each record
ATREE lake map
304
2018 lake survey
BUBNDPkch_kr1-480
Lake Development Authority
LDA245
KGIS tank map
1193