GROUND WATER PROSPECTS MAP
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MAP SHEET NO. 79A/11 D ! D ! D ! D ! D ! D ! D ! D ! D ! D ! D ! D ! D ! D ! D ! D ! D ! 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The figures on the top right hand side of well indicate the depth to water level and depth of well in meters DUG - CUM- BORE WELL HAND PUMP WELL ! ( D ! RIVER / STREAM (with sand) WATER BODY / SPRING « ! E CANAL NALA BUND DESILTING OF TANK § ! SUBSURFACE DYKE SOIL CONSERVATION MEASURES ! ! ! STORAGE TANK ´ YIELD RANGE IN LPM BORE / TUBE WELL DUG WELL / RING WELL > 800 LPM 400 - 800 LPM 200 - 400 LPM 100 - 200 LPM 50 - 100 LPM 30 - 50 LPM 20 - 30 LPM ª Ç ª ! ª ! ª ! ª Ç ! ( ! ( ! ( ! ( ! ( ! ( ! ( 10 - 20 LPM < 10 LPM ! ( ! ( RECHARGE WELL ! ( E RECHARGE SHAFT I 15/70 100 - 200 m / day 3 YIELD RANGE IN m / day 15/70 15/70 8/15 8/15 8/15 8/15 8/15 8/15 8/15 8/15 8/15 PERCOLATION TANK CHECK DAM RECHARGE PIT ^ @ ¼ 800 RAIN GUAGE STATION ( With average annual rainfall in mm ) !!! !! ARTESIAN WELL W ! F OBSERVATION WELL OF G.W DEPT. / C.G.W.B. ü ! ( BASE MAP INFORMATION SYMBOL DESCRIPTION SH - 9 STATE HIGHWAY METALLED ROAD OTHER ROAD RAILWAY " " CITY / VILLAGE ) " Ï ) " HABITATIONS : NON - COVERED (NC) PARTIALLY COVERED (PC) GROUND WATER PROSPECTS INFORMATION YIELD RANGE OF WELLS COLOUR CODE DEPTH RANGE OF WELLS SHALLOW MODERATE DEEP < 30 METERS 30 - 80 METERS > 80 METERS > 800 LPM Prospects limited to valley portions only (Hills, Plateaus etc.) Run-off zone/ Barrier for G.W. movement VIOLET RED 400 - 800 LPM INDIGO 200 - 400 LPM BLUE 100 - 200 LPM GREEN 50 - 100 LPM YELLOW 30 - 50 LPM ORANGE 20 - 30 LPM 10 - 20 LPM BROWN PINK < 5 m / day 3 200 - 400 m / day 3 3 > 400 m / day 3 50 - 100 m / day 25 - 50 m / day 3 15 - 25 m / day 3 10 - 15 m / day 3 5 - 10 m / day 3 ª ! 15/70 ª Ç 15/70 ª ! 15/70 ª ! 15/70 Lithologic contacts are inferred at places & Geomorphic boundaries are gradational DIPS BEDDING SCHISTOSITY/ FOLIATION GENTLE ( < 15 ) MODERATE ( 15 - 45 ) STEEP ( 45 - 80 ) SUB - VERTICAL TO VERTICAL ( > 80 ) o ANTICLINE / ANTIFORM SYNCLINE / SYNFORM Ö c Ü TREND LINE ESCARPMENT LITHOLOGY / GEOMORPHIC UNIT BOUNDARY FAULT MINOR MAJOR F F F F FRACTURE / LINEAMENT FRACTURE / LINEAMENT ( Inferred ) DYKE ( Confirmed / Inferred) ( Confirmed / Inferred) ( Confirmed / Inferred) QUARTZ REEF PEGMATITIE VEIN D D / D D Q Q Q P P P Q / P / STRUCTURAL INFORMATION o o THRUST T T T T SHEAR ZONE ( Confirmed / Inferred) S S /S S NH - 2 NATIONAL HIGHWAY LOCATION INFORMATION BLOCK INDEX MAPSHEET INDEX STATE INDEX INDIA WEST BENGAL DISTRICT INDEX (Inselberg / Ridge / Dyke etc.) 0 1 2 3 4 5 Kilometers © 79A11 79A10 79A14 79A07 79A06 79A08 79A12 79A16 79A15 " " " " " " " " " " " L13-RANAGHAT I L14-RANAGHAT II L15-SANTIPUR L3-HANSKHALI L14 L13 L15 L8 L9 L3 L8-KRISHNAGANJ L9-KRISHNANAGAR I L10-KRISHNANAGAR II L2-CHAPRA L10 L2 L14 L13 L15 L8 L9 L3 L10 L2 J a la n g i R i v e r Ja l a n g i R i v e r C h u r ni R i v er I c h a m a t i Ri ver Ic h a m a ti R i v e r P a l d a K h a l P al d a K ha l H a t a b h a n g a Ri v e r OTHER INFORMATION Rainfall : 1444 mm (Source IMD) SPONSORED BY RAJIV GANDHI NATIONAL DRINKING WATER MISSION (PHASE IV) DEPARTMENT OF DRINKING WATER SUPPLY (DDWS) MINISTRY OF DRINKING WATER & SANITATION GOVERNMENT OF INDIA NEW DELHI PARTICIPATING ORGANIZATIONS PREPARED BY TECHNICAL GUIDANCE & QUALITY CHECK METHODOLOGY & PROJECT EXECUTION GEOINFORMATICS & REMOTE SENSING CELL W.B. STATE COUNCIL OF SCIENCE AND TECHNOLOGY DEPARTMENT OF SCIENCE AND TECHNOLOGY GOVERNMENT OF WEST BENGAL 4TH FLOOR, BIKASH BHAVAN SALT LAKE, KOLKATA 700 091 SURVEY OF INDIA GEOLOGICAL SURVEY OF INDIA PHED, GOVT. OF WEST BENGAL STATE WATER INVESTIGATION DIRECTORATE, GOWB P.S.MAPS (LAND RECORD), GOVT OF WEST BENGAL INDIAN SPACE RESEARCH ORGANISATION (ISRO) DEPT. OF SPACE, GOVT. OF INDIA BALANAGAR, HYDERABAD - 500 625 NATIONAL REMOTE SENSING CENTRE NATIONAL REMOTE SENSING CENTRE INDIAN SPACE RESEARCH ORGANISATION (ISRO) DEPT. OF SPACE, GOVT. OF INDIA BALANAGAR, HYDERABAD - 500 625 S H1 1 S H 1 1 Designed & Developed by Hydrogeology Division, NRSC, ISRO NRSC (ISRO), DEPT. OF SPACE, GOVT. OF INDIA C C DATA USED : IRS - P6 LISS III FCC dated September 2005-February 2006,GROUND TRUTH & WELL OBSERVATION during March-June, 2012 & Oct 2012-Jan 2013,Published Geological maps & Literatures. These are fault / fracture zones, which generally act as conduits for movement of ground water in hard rocks. Along these zones, the yields are significantly higher and wells are likely to be sustainable for longer duration. However, the inferred fractures need to be confirmed by detailed ground surveys. N.B.-The depth range and yield range of wells may vary within the unit because of certain inhomogeneities. Fractures/Lineaments which are clearly observed / inferred from the satellite image are indicated on the map. There could be some obscured fractures which also influence the ground water prospects. Locations of the recharge structures shown in the map are tentative. This map is useful for narrowing down the target zones,and exact location on the ground for wells and recharge structures should be identified based on follow-up ground hydrogeological/geophysical surveys. F F D D D D Q Q Q Q These are dykes, quartz reefs and pegmatite veins, which generally act as barriers for ground water movement. P P P P 5-10 m 400-500 LPM Channel Bar (CB) Excellant LS TW Very High P Not Required Groundwater prospects very high with high recharge potential. Recharge structures not required. 10-15 m 250-350 LPM Ox-bow Lake (OL) Very Good LS TW Very High No well observed P Not Required Groundwater prospects very high with high recharge potential. Recharge structures not required. 10-15 m 250-350 LPM Cut-off Meander (CM) Very Good LS RW TW Very High P Not Required Groundwater prospects very high with high recharge potential. Recharge structures not required. 10-15 m 200-250 LPM Meander Scar (MS) Good LS RW TW High P Not Required Groundwater prospects very high with high recharge potential. Recharge structures not required. >150 m >800 LPM Flood Plain (FP) Very Good LS TW Very High NP (As & Fe) [At shallow depth] Not Required Areas with high Arsenic and Iron concentration.Potable water available at depth range above150m. Alluvium (Clay Dominant) (12) 60-70 m 40-50 LPM Backswamp (BS) Poor LS TW Low P Not Required Areas of low groundwater potential. Better potential at greater depths. 10-15 m 250-300 LPM Alluvium (Sand,Silt & Clay) (13) Abandoned Channel (AC) Very Good LS RW TW Very High P Not Required Areas of very high groundwater potential at shallow depth.Most suitable for extraction of groundwater. L E G E N D GEOLOGICAL SEQUENCE / ROCK TYPE GEOMORPHIC UNIT / LANDFORM ( REPRESENTED IN THE MAP WITH ALPHABETIC CODE ) DEPTH TO WATER LEVEL DEPTH RANGE OF WELLS ( SUGGESTED ) MIN - MAX ( IN METERS ) QUALITY OF WATER POTABLE (P) NON - POTABLE (NP) ( INDICATE REASONS IF NON POTABLE ) GROUND WATER IRRIGATED AREA ( APPROX . RANGE IN PERCENTAGE ) G R O U N D W A T E R P R O S P E C T S ( REPRESENTED IN THE MAP WITH NUMERIC CODE ) YIELD RANGE OF WELLS ( EXPECTED ) ( in LPM or m / day) 3 RECHARGE STRUCTURES SUITABLE & PRIORITY AQUIFER MATERIAL LS PR FIR FR WR / WM IR = LOOSE SEDIMENTS = PERMEABLE ROCK = FISSURED ROCK = FRACTURED ROCK = WEATHERED ROCK / WEATHERED MATERIAL = IMPERIVIOUS ROCK TYPE OF WELLS SUITABLE HOMOGENEITY IN THE UNIT & SUCCESS RATE OF WELLS VERY HIGH HIGH MODERATE LOW ( PROBABILITY ) DW RW BW TW DBW / DTW = DUG WELL = RING WELL = BORE WELL = TUBE WELL = DUG CUM-BORE WELL / DUG CUM-TUBE WELL PRE / POST- MONSOON (AVERAGE IN METERS) NO. OF WELLS OBSERVED P a n s k u r a / A r a m b a g h / C h i n s u r a / K a t w a / B a s u d e b p u r / ( E a r l y t o L a t e H o l o c e n e ) K a n d i / M a l d a / J a l p a i g u r i / G a n g a - K o s h i F o r m a t i o n H u g l i / B h a g i r a t h i F o r m a t i o n / P r e s e n t d a y D e p o s i t s ( P r e s e n t D a y ) Nil Nil Nil 9.04 Nil 2.38 0.15 OL111 CM111 MS111 AC13 Alluvium (Sand Dominant) (111) CB111 No well observed No well observed No well observed No well observed 1 No well observed 5 / 3 = PERCOLATION TANK = CHECK DAM = NALA BUND = RECHARGE WELL = DESILTING OF TANK = RECHARGE PIT = SUBSURFACE DYKE = RECHARGE SHAFT = STORAGE TANK = SOIL CONSERVATION MEASURES PT CD NB RW DT RP SD RS ST SCM BS12 N A-BIRBHUM B-BARDDHAMAN C-PURULIYA D-BANKURA E-PASCHIM MEDINIPUR F-PURBA MEDNIPUR G-SOUTH 24 PARGANAS H-HOWRAH I- KOLKATA J-N24 PARGANAS K-HUGLI L-NADIA M-MURSIDABAD N-MALDA A M C D B L E K J H I F G R E M A R K S ( PROBLEMS / LIMITATIONS ) ( HYDROGEOMORPHIC UNIT ) REPRESENTED IN THE MAP WITH ALPHANUMERIC CODE ( COLOUR INDICATES YIELD RANGE AND HATCHING INDICATE DEPTH RANGE) MAP UNIT RECHARGE CONDITIONS BASED ON AVAILABILITY OF WATER ( RAINFALL & OTHER SOURCES ) 100-120 m 500-600 LPM Alluvial Plain Younger (APY) Good LS TW High Not Required NP (As & Fe) [At shallow depth] Areas with high Arsenic and Iron concentration.Potable water available at depth range above150m. 67.6 Alluvium (Sand and Silt) (113) 16 6 / 4 APY113 FP111 E AS T E RN RAIL WAY BOUNDARY : " " " " STATE DISTRICT BLOCK " " " " " INTERNATIONAL BANGLADESH
Transcript of GROUND WATER PROSPECTS MAP
MAP SHEET NO. 79A/11
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BS12
BS12
CM111
FP111
FP111
FP111
FP111
MS111
MS111
MS111
MS111
OL111
APY113
BS12
MS111
APY113
APY113
Kshirpur
Salghata
Kultala
Sondaha
Bansbaria
Nisua
Gopalpur
Kamarpur
Kalipara
Khoea
Krshangani
Ramnagarpara
Madhabpur
Purandarpur
Chandannagar
Ramnagar
Kalinga Digambarpur
Gobindpur
Asannagar
Mubarakpur
Ganrapota
ChhotaChubri
Harindengi
Mamjoani
Chonenda
Teksali
Kandipur
Durgapur
Panditpur
Katgara
Adapota
Tengra
Mahespur
Banpur
Dopharpota
Dakshinpara
Gopalpur
Mundughata
Daluabari
Garapota
Bhodurigram
Chitrashall NahaganjBhgjanghata
Harihnghata
Pipalbaria
Fulbari
Mamjoani
AranghataNarayanpur
MajhdiaKrishnanagar 1
Hanskhali
Srirampur
Kamalpur
Badkulla
Kulgachi
Matpur
Mahurpur
DiguriDumri
Bahirgachi
Maidanpur
Joyghata Majdia
Taldaha
Ghugragachi
Bhagwanpur
Bhimpur
Sankdaha
Bishnupur
Syamnagar
Bhatjora
Naldaha
Ghurni
Goalpara
Paninala
Phulbaria
Nakura
Chandrapur
Adityapu
Khatur
Bajitpur
Kamalpur
Umarpur
Natunpara
Batkimari
Jaypur
Natunpara
Kamarpara
Himmatpur
Jinukghata
Pairadanga
Bagula
Gayesh
Haldipara
Bhaina
Mednagram
Patkebari
Hajrapur
Barahat
Khenupara
Jalalkhali
Nochboria
Khamarsimli
MaheshdangaKhisma
Kulgachi
Naraynpur
Kalinagar
Shyalberia
Kalupur
Ulas
Shamkur
Beshpur
IteberiaMokeshnagar
Teghari
Gajna
Pabakhali
Chaugacha
Dosatai
Barghata
Khalbadlia
Bagberia
Chhapri
Ghugragachi
Bahirgachi
Sibchandrapur
Maharajpur
6/1306/130
4/115
5/130
4/120
4/110
4/110
4/1205/130
5/28
4/125
3/140
4/1305/130
4/120
4/120
6/128
GROUND WATER PROSPECTS MAP( PREPARED FROM SATELLITE IMAGE INTERPRETATION WITH LIMITED FIELD CHECKS )
SCALE - 1 : 50,000NADIA DISTRICT, WEST BENGAL
15/70
15/70
HYDROLOGICAL INFORMATION DESCRIPTION SYMBOL
CANAL / TANK IRRIGATED AREAGROUND WATER IRRIGATED AREA
E E E E
E E E E
E E E E
RECHARGE STRUCTURES SUGGESTED
WELLS OBSERVED DURING FIELD VISIT
3
Colour inside well symbol indicates yield range. The figures on the top right hand side of well indicate the depth to water level and depth of well in meters
DUG - CUM- BORE WELL HAND PUMP WELL!( D!
RIVER / STREAM (with sand)
WATER BODY / SPRING
«!
E
CANAL
NALA BUND DESILTING OF TANK §!SUBSURFACE DYKESOIL CONSERVATION MEASURES
! ! !
STORAGE TANK ´
YIELD RANGEIN LPM
BORE /TUBE WELL
DUG WELL /RING WELL
> 800 LPM400 - 800 LPM
200 - 400 LPM100 - 200 LPM50 - 100 LPM30 - 50 LPM
20 - 30 LPM
ªÇª!ª!ª!
ªÇ
!(
!(
!(
!(
!(
!(
!(
10 - 20 LPM< 10 LPM
!(
!(
RECHARGE WELL !(E
RECHARGE SHAFT I
15/70 100 - 200 m / day
3YIELD RANGEIN m / day
15/70
15/70
8/15
8/15
8/158/15
8/15
8/15
8/15
8/15
8/15
PERCOLATION TANK CHECK DAM
RECHARGE PIT ^
@¼
800RAIN GUAGE STATION( With average annual rainfall in mm )
!! !! !
ARTESIAN WELLW!F OBSERVATION WELL OF
G.W DEPT. / C.G.W.B.ü!(
BASE MAP INFORMATION
SYMBOL DESCRIPTION
SH - 9 STATE HIGHWAY
METALLED ROAD
OTHER ROAD
RAILWAY
" "CITY / VILLAGE
)"Ï )"
HABITATIONS : NON - COVERED (NC) PARTIALLY COVERED (PC)
GROUND WATER PROSPECTS INFORMATION
YIELDRANGE
OF WELLSCOLOUR
CODEDEPTH RANGE OF WELLS
SHALLOW MODERATE DEEP< 30 METERS 30 - 80 METERS > 80 METERS
> 800 LPM
Prospectslimited to valleyportions only(Hills, Plateausetc.)
Run-off zone/Barrier forG.W. movement
VIOLET
RED
400 - 800 LPM INDIGO
200 - 400 LPM BLUE
100 - 200 LPM GREEN
50 - 100 LPM YELLOW
30 - 50 LPM ORANGE
20 - 30 LPM
10 - 20 LPM
BROWN
PINK
< 5 m / day3
200 - 400 m / day3
3> 400 m / day
350 - 100 m / day25 - 50 m / day3
15 - 25 m / day3
10 - 15 m / day3
5 - 10 m / day3
ª! 15/70ªÇ 15/70
ª! 15/70
ª! 15/70
Lithologic contacts are inferred at places & Geomorphic boundaries are gradational
DIPS BEDDING SCHISTOSITY/FOLIATION
GENTLE ( < 15 )MODERATE ( 15 - 45 )
STEEP ( 45 - 80 )SUB - VERTICAL TO VERTICAL ( > 80 )
o
ANTICLINE / ANTIFORM
SYNCLINE / SYNFORM
Ö
c
Ü
TREND LINE
ESCARPMENT
LITHOLOGY / GEOMORPHIC UNITBOUNDARY
FAULTMINOR MAJOR
F F F F
FRACTURE / LINEAMENT
FRACTURE / LINEAMENT ( Inferred )
DYKE ( Confirmed / Inferred)
( Confirmed / Inferred)
( Confirmed / Inferred)
QUARTZ REEF
PEGMATITIE VEIN
D D / D D
Q Q Q
P P P
Q /
P /
STRUCTURAL INFORMATION
o
o
THRUST T T T T
SHEAR ZONE ( Confirmed / Inferred) S S /S S
NH - 2 NATIONAL HIGHWAY
LOCATION INFORMATION
BLOCK INDEX MAPSHEET INDEX
STATE INDEX
I N D I A
WEST BENGAL
DISTRICT INDEX
(Inselberg / Ridge / Dyke etc.)
0 1 2 3 4 5Kilometers ©
79A11
79A10 79A14
79A07
79A06
79A08 79A12 79A16
79A15
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L13-RANAGHAT IL14-RANAGHAT IIL15-SANTIPURL3-HANSKHALI
L14L13L15
L8L9
L3
L8-KRISHNAGANJL9-KRISHNANAGAR IL10-KRISHNANAGAR IIL2-CHAPRA
L10
L2
L14L13L15
L8L9
L3
L10
L2
J a l a n g i R i ve
r
J a l ang
iRi
ver
C h u r n i
R i v e r
Ich
ama
t iR i v
e r
I ch a m
a t i
R i ve r
Pald
aKh
a l
Palda Khal
Ha t
a b h a n g aR i v e r
OTHER INFORMATION
Rainfall : 1444 mm (Source IMD)
SPONSORED BYRAJIV GANDHI NATIONAL DRINKING WATER MISSION
(PHASE IV)DEPARTMENT OF DRINKING WATER SUPPLY (DDWS)
MINISTRY OF DRINKING WATER & SANITATIONGOVERNMENT OF INDIA
NEW DELHI
PARTICIPATING ORGANIZATIONSPREPARED BY TECHNICAL GUIDANCE & QUALITY CHECK METHODOLOGY & PROJECT EXECUTIONGEOINFORMATICS & REMOTE SENSING CELL
W.B. STATE COUNCIL OF SCIENCE AND TECHNOLOGYDEPARTMENT OF SCIENCE AND TECHNOLOGY
GOVERNMENT OF WEST BENGAL4TH FLOOR, BIKASH BHAVANSALT LAKE, KOLKATA 700 091
SURVEY OF INDIAGEOLOGICAL SURVEY OF INDIAPHED, GOVT. OF WEST BENGAL
STATE WATER INVESTIGATION DIRECTORATE, GOWBP.S.MAPS (LAND RECORD), GOVT OF WEST BENGAL
INDIAN SPACE RESEARCH ORGANISATION (ISRO)DEPT. OF SPACE, GOVT. OF INDIA
BALANAGAR, HYDERABAD - 500 625
NATIONAL REMOTE SENSING CENTRENATIONAL REMOTE SENSING CENTREINDIAN SPACE RESEARCH ORGANISATION (ISRO)
DEPT. OF SPACE, GOVT. OF INDIABALANAGAR, HYDERABAD - 500 625
SH 11
SH11
Designed & Developed by Hydrogeology Division, NRSC, ISRONRSC (ISRO), DEPT. OF SPACE, GOVT. OF INDIACC DATA USED : IRS - P6 LISS III FCC dated September 2005-February 2006,GROUND TRUTH & WELL OBSERVATION during March-June, 2012 & Oct 2012-Jan 2013,Published Geological maps & Literatures.
These are fault / fracture zones, which generally act as conduits for movement of ground water in hard rocks. Along these zones, the yields are significantly higher and wells are likely to be sustainable for longer duration. However, the inferred fractures need to be confirmed by detailed ground surveys.
N.B.-The depth range and yield range of wells may vary within the unit because of certain inhomogeneities. Fractures/Lineaments which are clearly observed / inferred from the satellite image are indicated on the map. There could be some obscured fractures which also influence the ground water prospects.Locations of the recharge structures shown in the map are tentative. This map is useful for narrowing down the target zones,and exact location on the ground for wells and recharge structures should be identified based on follow-up ground hydrogeological/geophysical surveys.
F F
D DD D
Q QQQ These are dykes, quartz reefs and pegmatite veins, which generally act as barriers for ground water movement.P
PPP
5-10 m 400-500 LPMChannel Bar(CB) Excellant LS TW Very High P Not Required Groundwater prospects very high
with high recharge potential.Recharge structures not required.
10-15 m 250-350 LPMOx-bow Lake(OL) Very Good LS TW Very HighNo well observed P Not Required Groundwater prospects very high
with high recharge potential.Recharge structures not required.
10-15 m 250-350 LPMCut-off Meander(CM) Very Good LS RW
TW Very High P Not RequiredGroundwater prospects very highwith high recharge potential.Recharge structures not required.
10-15 m 200-250 LPMMeander Scar(MS) Good LS
RWTW High P Not Required Groundwater prospects very high
with high recharge potential.Recharge structures not required.
>150 m >800 LPMFlood Plain
(FP) Very Good LS TW Very HighNP
(As & Fe)[At shallow
depth]Not Required
Areas with high Arsenic and Ironconcentration.Potable water available at depth range above150m.
Alluvium(Clay Dominant)
(12) 60-70 m 40-50 LPMBackswamp(BS) Poor LS TW Low P Not Required Areas of low groundwater potential.
Better potential at greater depths.
10-15 m 250-300 LPMAlluvium
(Sand,Silt & Clay)(13)
Abandoned Channel (AC) Very Good LS R W
T WVery High P Not Required
Areas of very high groundwaterpotential at shallow depth.Most suitable for extraction of groundwater.
L E G E N DGEOLOGICAL SEQUENCE /
ROCK TYPEGEOMORPHIC
UNIT / LANDFORM
( REPRESENTED IN THE MAP WITH
ALPHABETIC CODE )
DEPTH TOWATER LEVEL
DEPTH RANGEOF WELLS
( SUGGESTED )
MIN - MAX( IN METERS )
QUALITY OFWATER
POTABLE (P)NON - POTABLE (NP)
( INDICATE REASONS IF NON POTABLE )
GROUNDWATER
IRRIGATEDAREA
( APPROX . RANGE IN PERCENTAGE )
G R O U N D W A T E R P R O S P E C T S
( REPRESENTED IN THE MAP WITH
NUMERIC CODE )
YIELD RANGEOF WELLS
( EXPECTED )
( in LPM or m / day)3
RECHARGESTRUCTURES
SUITABLE &PRIORITYAQUIFER MATERIAL
LS PR FIR FR WR / WMIR
= LOOSE SEDIMENTS= PERMEABLE ROCK= FISSURED ROCK= FRACTURED ROCK= WEATHERED ROCK / WEATHERED MATERIAL= IMPERIVIOUS ROCK
TYPE OF WELLSSUITABLE
HOMOGENEITY IN THE UNIT& SUCCESS
RATE OF WELLS
VERY HIGHHIGH
MODERATELOW
( PROBABILITY )DW RW BW TW DBW /DTW
= DUG WELL= RING WELL= BORE WELL= TUBE WELL= DUG CUM-BORE WELL / DUG CUM-TUBE WELL
PRE / POST- MONSOON (AVERAGE IN METERS)
NO. OF WELLSOBSERVED
Pan
sku
ra/A
ram
bag
h/C
hin
sura
/Kat
wa/
Bas
ud
ebp
ur/
(Ear
lyto
Late
Hol
ocen
e)K
andi
/Mal
da/J
alpa
igur
i/G
anga
-Kos
hiFo
rmat
ion
Hugl
i/Bh
agir
athi
Form
atio
n/Pr
esen
tda
yDe
posi
ts(P
rese
ntDa
y)
N il
Nil
Nil
9.04
Nil
2.38
0.15
OL111
CM111
MS111
AC13
Alluvium(Sand Dominant)
(111)
CB111 No well observed
No well observed
No well observed
No well observed
1
No well observed
5 / 3
= PERCOLATION TANK= CHECK DAM= NALA BUND= RECHARGE WELL= DESILTING OF TANK= RECHARGE PIT= SUBSURFACE DYKE= RECHARGE SHAFT= STORAGE TANK= SOIL CONSERVATION MEASURES
PTCDNBRWDTRPSDRSSTSCM
BS12
N
A-BIRBHUMB-BARDDHAMANC-PURULIYAD-BANKURAE-PASCHIM MEDINIPURF-PURBA MEDNIPURG-SOUTH 24 PARGANASH-HOWRAHI- KOLKATAJ-N24 PARGANAS
K-HUGLIL-NADIAM-MURSIDABADN-MALDA
AM
C D B L
EK J
H I
F G
R E M A R K S( PROBLEMS / LIMITATIONS )
( HYDROGEOMORPHIC UNIT )
REPRESENTED IN THE MAP WITH
ALPHANUMERIC CODE
( COLOUR INDICATESYIELD RANGE AND
HATCHING INDICATE DEPTH RANGE)
MAP UNIT RECHARGE CONDITIONS
BASED ON AVAILABILITY
OF WATER
( RAINFALL & OTHERSOURCES )
100-120 m 500-600 LPMAlluvial Plain
Younger(APY)
Good LS TW High Not RequiredNP
(As & Fe)[At shallow
depth]
Areas with high Arsenic and Ironconcentration.Potable water available at depth range above150m.
67.6Alluvium
(Sand and Silt)(113) 16
6 / 4APY113
FP111
EASTERNRAILWAY
BOUNDARY :
" " " " STATEDISTRICTBLOCK
" " " " " INTERNATIONAL
BA
NG
LA
DE
SH
