ongc patan of different cities from gujrat

OIL AND NATURAL GAS CORPORATION LIMITED

EIA/EMP AND RA/DMP FOR DRILLING OPERATION OF EXPLORATORY WELLS IN

30 BLOCKS DESCRIPTION OF THE ENVIRONMENT

KADAM ENVIRONMENTAL CONSULTANTS | DECEMBER 2012 84

Gandhinagar District

The major crop cultivated in the study area are mostly Cotton (Gossypium herbaceum) and vegetables and in some area Castor (Ricinus communis), Wheat (Triticum aestivum), Bajra (Pennisetum glaucum), and other crops like Mung (Phaseolus aureus), Til (Sesamum indicum), Guar (Cyamopsis tetragonalobus). Water for agriculture is essentially from bore wells which draw water from upto 700 feet (~213 m) and Narmada Canal waters through the Sujalam Sufalam and Narmada Yojana schemes respectively.

Mehsana District

The major crops cultivated are Wheat, Bajra, Jowar and other crops like Cotton and Castor in some areas. Also the species crops i.e. Mustard which are abundant in Visnagar and Unjha talukas also Jeera & Chilly are abundant in Mahesana taluka. Some portion of Vijapur taluka in study area had Potato crops. Agriculture here is through bore wells which abstract groundwater from a range between 400 to 1000 feet (~123 m 305 m) and the Narmada Canal.

Patan District

The major crops cultivated are castor, mustard, & cotton also other crops grown are jira, bajra, wheat, jowar for fodder and fennel. In some area pulses like Mung, Tuver, Arad, Guwar and vegetables. Water for agriculture is sourced from Narmada Canal or bore wells whose depth ranges from 400 to 1000 feets.

Ahmedabad District

In this region the major crop cultivated were, Wheat, Jowar, Bajra and other crops like Castor, Cotton. Also the spices like Jeera, Mustard and Chilly. The irrigation is essentially through the ground water.

Plantation

The plantation class covered 69 sq.km. of land covering more in Gandhinagar and the part of Mehsana district specifically stretch from Mehsana to Kadi Taluka.

The plantation were mostly of Chikoo (Manilkara zapota), Lemon (Citrus limonum), Amla (Emblica officinalis), and Mango (Mangifera indica).

Wastelands

Land without Scrubs

The class Land without Scrub denotes land having no or sparse vegetation. This class covered 0.62 per cent of the area.

Water Bodies

It was observed that water body covered 16.7 sq.km. of land within study area.

Rivers

Gandhinagar

The only river Sabarmati flows through the study area as shown in map on the south-east region.





Mehsana

Three rivers i.e. Rupen, Pushpavati and Khari are the major rivers flowing in our study area towards south-west direction.

Patan

The rivers Saraswati and Khari and its tributories flows through the study area towards south-westerly direction.

Vegetation Cover

The vegetation cover region was the same for all the districts which was wide spread along the river and near the habitation. They were dominated by ravenous vegetation like Capparis deciduas, Acacia nilotica, Prosopis juliflora etc. Along the habitation it was dominated by Prosopis juliflora.

4.3.6 Class wise Area Statistics

The area statistics of these classes are presented in Table 4-3.

Table 4-3: Area Statistic for Land use / Landcover Categories in the Study Area

S. No.

Primary Classification

Secondary Classification

Area, Secondary Class Area, Primacy Class

Ha. ~km2 ~% Ha. ~km2 ~%

1. Built-up Land or

Habitation

Residential / Commercial

15546.47 155.46 3.26 18553.11 185.53 3.89

Industrial 3006.64 30.07 0.63

2. Agricultural Land

Crop Land/Fallow Land

393140 3931.4 82.43 400121.49 4001.21 83.89

Plantations 6981.49 69.81 1.46

3 Wastelands Land without Scrub 2962.57 29.63 0.62 2962.57 29.63 0.62

5. Water Bodies

Reservoir / Lakes / Ponds / Tanks

1671.31 16.71 0.36 4773.82 47.74 1.01

River Beds 3102.51 31.03 0.65

6. Vegetation Cover Vegetation 50524 505.24 10.59 50524 505.24 10.59

4.3.7 Final Map Preparation

The proportional presence of different land uses and land cover in terms of statistical percentages was derived for the study area. Appropriate legends were used to represent the various categories of land use and land cover, and were then written on the prepared land use and land cover maps.

This concluded the landuse identification and description component of the study.

The images classified into the above-mentioned classes for different regions of interest are given in Photographs 4-1.





Photographs 4-1: Photographs of Various Land uses of Study Area

Castor Crop in the Block Area Brick Industry in the Field

Prosopis Julifora dominated area in the Blocks Ravenous Area

Amla Plantation Industrial Area Near Chattral





4.3.8 Important Features within the Study Area

There is no Biosphere Reserve, National Park, Sanctuary or Reserved Forest within the study area. However, details of the important features in the study area are provided in Table 4-4.

Table 4-4: Important Feature within the Study Area

S. No. Features Details falling within study area

1 National Park/Wildlife Sanctuary No

2 Reserve Forest No

3 Tiger Reserve/Elephant Reserve / Turtle Nesting Ground No

4 Core Zone of Biosphere Reserves No

5 Habitat for migratory birds No

6 Estuary/Sea/Lakes/Reservoir/Dams/streams/River Details given in Section 4.3.9

7 Mangroves No

8 Mountains/Hills No

9 Archaeological sites/Monuments Details given in Section 4.3.10

10 Defence Installation No

11 Industries

In study area majority of Industrial area is located on SH-41 Stretched

from Chattral to Nandasan and Chattral to Kadi

12 Airports No

13 Railway Lines Provided in Section 2.3.2

14 National/ State Highway Provided in Section 2.3.2

4.3.9 Major Water Bodies in the Study Area

The major surface water bodies in study area are listed below and some photographs are shown in Photographs 4-2.

River/Canal

Chekaria River Saraswati River Khari River Pushpavati River Rupen River Sabarmati River Narmada Main Canal Narmada Branch Canals





Photographs 4-2: Photographs of Major Water Bodies in the Study Area

Chekaria River, Near Sariyad Surkha River, Near Bhutia Wasan

Pushpavati River, Near Mehsana FAE WP at Saraswati River, Near Patan

Narmada Canal near Patan Rupen River, Near Mehsana





4.3.10 Archeological Site within the Study Area

The following archeological sites are located in study area

Rani Vav - a step well situated in Patan Sahastralinga Talav Patan Shaikh Farid Dargah, Patan Sun Temple at Modhera, Mehsana

4.4 Meteorology

The climate of this region is characterized by a hot summer and general dryness except in the southwest monsoon season. The year may be divided into four seasons. The cold season from December to February is followed by the hot season from March to middle of June. The period from middle of June to September is the southwest monsoon season. October and November constitute the post-monsoon or retreating monsoon season.

4.4.1 Long Term Meteorology

The interpretation of climatic data is based on the long-term climatological tables (1961 1990) published by Indian Meteorological Department (IMD) and the climatological interpretations provided in the District Gazetteer of Ahmedabad (Published in 1984). A copy of the long-term climatological data is enclosed as Annexure 2.

Temperature

The period from March to May is one of continuous increase in temperatures. May is generally the hottest month with a mean daily maximum temperature of about 41.7C and mean daily minimum of about 26.2C. The weather is intensely hot in summer and on some days the day temperature may reach up to 45C. The highest temperature recorded at Ahmedabad is 47.8C on 27th May 1916.

From November, both day and night temperatures begin to decrease rapidly. January is generally the coldest month with the mean daily maximum temperature at about 28.3C and mean daily minimum at about 11.9C. Cold waves sometimes affect the region in association with the passage of western disturbances across North India. On such occasions, the minimum temperature sometimes drops down to 6-7C. the lowest temperature recorded at Ahmedabad is 2.2C on 6th February 1920.

Wind

Long term wind direction data is presented in Table 4-5. During June to September, that is during the monsoon season wind blows mostly from south-west. During the period from October to February, both the morning and evening winds are mostly from northeast. During March to May wind mostly blows from north-west predominantly.





Table 4-5: Predominant Wind Direction IMD Ahmedabad (1961 1990)

Month

Predominant Wind

First Second Third

Morning Evening Morning Evening Morning Evening

January E N NE/ CLAM NW N NE

February CALM NW NE/E W NW NE

March NW NW CALM W E N

April NW NW W W CALM SW

May W W NW SW SW NW

June SW SW W S S W

July SW SW W W S S

August SW SW W W NW/CALM S

September NW SW W W SW NW

October CALM CALM NW NW E N

November E CALM CALM N NE E

December E N NE E CALM NE / NW

Rainfall

The distribution of rainfall in the region, which includes the study area, is uneven. Average rainfall in the region is 762.7 mm. About 93 percent of the annual rainfall in the region is received during the southwest monsoon months i.e. June to September. July is the rainiest month.

The annual average rainfall is about 762.7 mm. Maximum rainfall in any one month was recorded in the month of July in year 1905 which was about 952.5 mm. July is having maximum number of rainy days i.e. 11.2.

Cloud Cover

The area remains cloudy between June - September, which is the active period of the monsoon season. During this time all clouds cover is between 4.3 to 6.6 Oktas during day time and 3.9 to 6.3 Oktas during night time.

Humidity

Most humid conditions are found in the monsoons, followed by post-monsoons, winter and summer in that order. Mornings are more humid than evenings and humidity ranges from a high of 74-87% in monsoon mornings to a low of 20-45% in summer evenings. During post-monsoon season, in morning humidity remains between 55-64% and in the evening it remains between 35-37%.





Table 4-6: Average Meteorological Condition at IMD Ahmedabad (1961 1990 )

Month

Mean Daily Temperature Rainfall (mm)

Monthly Total

No. of Rainy days

Relative Humidity

(%),

Morning

Relative Humidity

(%),

Evening Max Min

January 28.3 11.9 1.8 0.2 59 32

February 30.9 14.0 1.1 0.1 53 25

March 35.8 18.9 1.0 0.1 49 20

April 39.8 23.5 2.7 0.2 54 20

May 41.7 26.2 15.1 0.7 65 23

June 38.5 27.1 98.7 4.2 74 45

July 33.4 25.6 262.3 11.2 85 67

August 31.9 24.7 239.6 10.8 87 71

September 33.7 24.2 108.9 5.3 82 58

October 36.0 21.0 16.2 0.4 64 37

November 33.1 16.6 11.5 0.6 55 35

December 29.6 13.2 3.8 0.2 60 35

Total - - 762.7 34.0 - -

Average 34.4 20.6 - - - -

4.4.2 Site Specific Meteorology

Baseline meteorological data representing the summer season 2012 has been collected at different locations within the 30 block area. The parameters for which data has been collected are:

Wind Speed Wind direction Temperature Relative Humidity Cloud Cover

Methodology for Collection of Meteorological Parameters

Hourly meteorological data (wind speed, wind direction, temperature, and relative humidity) were collected during summer season 2012 by installing manual meteorological station at Mehsana inside the block area. Cloud cover was collected at interval of four hour. Methodology for meteorological data collection is given in Table 4-7.

Table 4-7: Monitoring Methodology of Meteorological data

Parameters Sampling

equipment Range of

measurement Sensitivity/

Detection Limit Methodology

Wind Speed Cup Counter Anemometer

(0 to 65)

in m/s 0.25 m/s

IS 8829 - 1978

Wind Direction Wind vane

(0 to 357) degree with respect to North

direction 1





Parameters Sampling

equipment Range of

measurement Sensitivity/

Detection Limit Methodology

Temperature Thermometer

(-40 to 60)

in degree Celsius 0.1C

Relative Humidity Relative Humidity

meter (0 to 99 %)

in percent 3%

Cloud Cover - - - Visual Inspection by

the observer

Baseline Meteorological Data

As per requirement of Terms of Reference, the hourly baseline meteorological data were collected by setting up meteorological station at Mehsana. A photograph of meteorological station is shown in Photographs 4-3.

Meteorological data shows that mean average wind speed during study period are 9.4 km/hr.

Wind rose prepared for study period is shown as Figure 4-1. It can be observed that during study period wind blows mostly from West direction.

Mean average temperature recorded during study period was 31.8C with mean maximum temperature of 39.3C and mean minimum of 25.3C.

The mean average relative humidity recorded was 41.2% with mean maximum humidity of 64.1% and mean minimum of 21.1%.

The data obtained during the study period using mechanized meteorological data collection instrument has then been compiled to obtain average data. Compiled mean meteorological data is represented in Table 4-8.

Table 4-8: Mean Meteorological Data for Summer Season 2012

Time Temp C Humidity % Wind Speed

(m/sec) Wind Speed

(km/hr) Cloud Cover

Wind Direction

0:00 29.2 43.5 2.5 8.8 0.9 W

1:00 28.6 46.2 2.4 8.6 0.9 W

2:00 27.6 48.9 2.3 8.4 1.0 W

3:00 27.2 52.4 2.6 9.2 1.0 W

4:00 26.5 55.6 2.3 8.4 1.2 W/WNW

5:00 25.8 59.0 2.5 8.9 1.2 WNW

6:00 25.3 61.3 2.3 8.2 1.2 WNW

7:00 25.7 64.1 2.4 8.5 1.2 W

8:00 27.2 62.5 2.4 8.5 1.3 WNW

9:00 29.4 57.9 2.6 9.2 1.1 WNW

10:00 31.8 50.4 2.6 9.3 1.1 WNW

11:00 33.3 43.3 2.7 9.6 1.0 W

12:00 35.3 37.5 2.8 10.0 1.0 W





Time Temp C Humidity % Wind Speed

(m/sec) Wind Speed

(km/hr) Cloud Cover

Wind Direction

13:00 36.7 31.6 3.0 10.6 1.0 W

14:00 37.8 27.5 3.0 10.9 0.9 WNW

15:00 38.7 24.3 3.1 11.3 0.9 WNW

16:00 39.3 22.1 3.1 11.1 0.9 WNW

17:00 38.8 21.1 3.0 10.8 0.9 WNW

18:00 37.9 21.9 2.7 9.9 0.9 WNW

19:00 35.8 24.1 2.6 9.4 0.9 WNW

20:00 33.6 27.1 2.4 8.7 0.9 W/WNW

21:00 31.7 31.2 2.4 8.5 0.9 W/WNW

22:00 30.6 36.1 2.5 8.9 0.9 W

23:00 29.9 39.6 2.6 9.3 0.9 W/WNW

Average/

Predominant 31.8 41.2 2.6 9.4 1.0 W

Photographs 4-3: Photographs of Meteorological Station set up at Mehsana

Meteorological Station at Mehsana

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14-NORTH SOBHASAN PART A + B ML

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16-WEST MEWAD ML

17-LANGHNAJ-WADASMA ML

18-NORTH SOBHASAN EXT-I ML

19-JAKASNA ML

20-NORTH SOBHASAN EXT-II ML

21-LANGHANJ ML

22-SANGANPUR ML

23-JOTANA-WAROSAN ML

24-JOTANA-SOUTH ML

25-MANSA EXT-I ML

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29-CHARADA MANSA EXT-I PEL

30-WEST PATAN

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AHMEDABAD DISTRICT

BANASKANTHADISTRICT

MEHSANA DISTRICT

PATAN DISTRICT

GANDHINAGAR DISTRICT

Map-4.2DRAWN BY : KK

APPROVED BY : JM

CHD BY : HY

PRO

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TI

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REVISION : 0

DATE : 20/09/2012

SCALE : As Shown

KADAM ENVIRONMENTAL CONSULTANTS

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NER

SOURCE : Satellite image taken from Enhance Version of Google earth at June07

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Map showing Sampling Locationin the Study Area

DRAWING NO:

Name

Study Area

LAND USE / LAND COVER CLASSES

Primary Class

Built-up / Habitation

Water Bodies

Symbol / Colour

Secondary Class

Road

Canal

Residential / Commercial

Reservoir / Lakes / Ponds / Tanks

Symbol /Colour

LEGEND

Railway Line

District Boundary

River Beds

SAMPLING LOCATIONS Ambient Air Location Ground Water Surface Water

Noise Level Soil

AA2

AA3

AA4

AA5

AA6AA7

AA8

AA9

AA10

AA11

AA12

AA13

AA14

AA2NL1NL2

NL3

NL4

NL5

NL6

NL7

NL8

NL9

NL10

NL11

NL12

NL13

NL14

NL15

NL16

NL17

NL18

NL19

NL20

NL22

NL23

NL24

NL26

NL27

NL28

NL29

NL30

NL31

NL32

NL33

NL34

NL35

ST1

ST2

ST3

ST4

ST5

ST6

ST7

ST8

ST9

ST10

ST11

ST12

ST13

ST14

ST15

ST16

ST17

ST18

ST19

ST20

ST21

ST22

ST23

ST24

ST25

ST26

ST27

ST28

ST29

SW1

SW2SW3

SW4

SW5

SW6

SW7

SW8

SW9

SW10

SW11

SW12

SW13

SW14

SW15

SW16

SW17

SW18

SW20

SW21

SW22

SW23

GW1

GW2

GW3

GW4

GW5

GW6

GW7

GW8

GW9

GW10

GW11

GW12

GW13

GW15

GW14

GW16

GW17

GW18

GW19

GW20

GW21

GW22

GW23

GW24

GW25

GW26

GW27

GW28

GW29

GW30

GW32

04

01

02

0305

06

07

08

09

10

11

12

13

14

14

15

16

17

18

19

20

21

22

23

2425

26

27

27

28

29

30

Sariyad

Kasra

DeoparcDhanera

Bepadhar

WareraTajpur

Wadhasar Kasa

Baluwa

Velora

Waria

SadasanKalodhi

Melusan

Lodhi

Dhanasra

Rakhao

Naita Mota

Naita Nava

Wadhi

Rechvi

Morpa

Wagrod

Wachhalwa

Ruppura

Waru

Lakhnod

Dasawara

NidroraKaliana

Sihol

Charup

Malarpur

Kibuwa Sanodarda

Kotavad

WamiaGulwasha

Aghar

TakwasnaBhutia wasna

Raghnathpura

Sujnipur

SagoriaAjimana

OdhwaKhalipur

Dudha Rampura

Hanmahpura

Khanprada

Dunawara

Vithlod

Masa

Wasna Balochpur

Roda

Wansa

Venjawara

Sankra

DharnojWadli

Sherpur

Khari Waori

PATANAnawara

MatarwariRuni

Hajipur

Kamliwara

Diadarda

KuntawaraWanasan

ChandalajDeher

Chadasna

Santi Nana Ramanda

Mota Ramanda Amundh

Dharpur

DungriMandotri

Digri

KatraSarer

Bhalana

Malsund

Piplana

Kurija

ManpurKhanpur

Tornipur

Aria

BhemasanBadipur

Katpur

Kungher

Sabosan

Rajpur

Golapur

Chamarwara

Borsan

Ambliasan

Khanpur Kori

NortaSaruwa

Kuder

BALISANATundao

Kani

Visal WasnaSunak

SihiUNJHA

UnauwaSurpura

DabhiMatpur

BabasnaSamora

Hamidpur

Sander

DabhriRanuj

Sardarpura

Gaja

Gadosan

Mehimadpur Sankhari

BhalgamIlampur

Mithi Waori

Galoli Wasna

Shewala Shedha

Ruppura

Nana

Manka

Ravidra

KalianaPiluwara

Chandrumana

Khari Gharial

Shedhal

Dharmora

CHANASMA

Tambolia

Ramghar

Jamanpur

Gowana

Dantarwara

Boratwara

Jitora

Sardarpura

Khimiana

Sojitra

JasomaoSodhao

PaloliKamboi Solanki

Gokharwa

Khorsam

PhichalWasai

Ganget Phichal

Manund

Shelavi

KanthraviNawapura

Pali

Aithor

HasnapurLakhmipura

Jetal Wasna

Satusana

WaruBhandu

Bokarwara

KharasdaDawara

PalasarVirta

Gorad

Rupal

Buta Palri

Datkarori

Lanwa

MithaDharwa

DhanodaraDHINOJ

Chhathiarda

PalodarAlora

KamalpurHardesan

Panchot

Tareti

Taoria

Nani Dau

Moti DauBamsana

Randala

PiludraGhard

Kansarakui

Piludra ParaBasna Bechrpura

DadhialMangrora

KherwaraLachhri

Dagawaria

Kelisana

Kamalpur Gothva

Talosan

Pamol

Gawara

Gerita

Warasen

SokhraAsrota

DeoraGanpatpura

Kamalpur Dabhla

Dela Chitrora Mota

ChitrorapuraUcharpi

Aliasan MeghaViramgamLakhawad

Detroi

Thumthal

Gujala

Udalpur

Daorasan

KadvasanRampura

Rupal

Kukas

Heduva Hanumant

Nagalpur

DediasanNungar

Bodla

Saduthala

Motab

Kanoda

Dedarda Ranela

Jetpura

UndelaDeloli

Maguna

Hingloj Na Pura

Ranchhodpura

Kansagar

JipuraPalaj

Ghamanpura

DevinapuraSametra

Mareda

Hendwa Rajgar

Warosan

Sakhpurda

Sobhasan

Punasan

KhervaDharusen

Dhamanva

Padharia

WASA

Kukarwara

Ubkhal

Merali ViharVihar

Charasan

Kolaora

Khalusa

KotariPILWAI

Palri Vihar

BilodraTitodan

Dilwara Kanbha

Vera

PadhraAjolCHARARA

Haranhora

Parusma

GHOJARIA

Samowu

Dhadhusan

Mewu

Mulsan

Sanganpur

Jagudan

Kochwa

Geratpur

Mewad

BoriaviKhara

Maknaj

BalolLaxmipuraNandasa

Gokalpura

Dhanpura

Indrap

Rajpur

Ruppur

RantejKanpura

Tejpura

Martoli

KATOSAN

Ajabpura

SanthalKasalpura

Jotana Modipura Ambasan

BhesanaLinch

Kalka Mota Bhakoria

Jetalpur

Chalauwa

Akhaj

BadalpurBalwantpura

WarsoraBadpura

Gunma

Mota Poara Nana Poara

LodraKuwadra

GolthraMANSA

RidrolDhamer

Solia Bapupula

Amarpura

Kharna

Itadra

ChararuAmbasan

Jomang

JamnapurNavi Sheravi

Juni Sheravi

Takia

Warsama

Karjisan

Parsa

Khata AmbaSaldi

VeraGovindpura

Wagosan

Indarpura

Fatepur

Maka KhadRampura

Parbatpura

RajpuraSabdalpuraJamla

Paliyad Sobhasa LimbodraAmrapar

Delwad

Manikpur

AluwaMubarakpurBalwa

Unawa

Ithla

Chandisan

NadriAmja

Golthara

Soja

KotaNarol

DaguchaNardipur

Waru

Khoraj

Bhaupura

Nawapura

Dangarwa

Jhulasan

Pansar

Mokasan

Chhatral

Bilesar

Ambaopura

Charasan

RajpurUtwa

Irana

Idarad

Dhanot

Lunasan

AnkholAcharasanKarana

Borisana

PhuletraWamajJetpur

Meana

Adraj Merda

Lohar

Karsanpura

Dudhai

Siapura

Rangpurda

Pirojpur

Nani Kari

SujatpuraThalod

Babajipura

KaswaKhad Morwa Viraj

Sedardi

Daran

Darno Morwa

Sedarana

Charol

Jivapura

Sangpura

DoriaSadra

BalasarKundal

AldesanAdundra

Sarsav

Kherpur

Nawapura

Nandasan

ChadaredaGhumasan

Anandpura

Kiol

Mathasur

Jisalpur

Mokhasan

Digri

Chhalesra

Nagarasan

DewusnaDamodari Na ParaKameshwarpura

Kharna

Hathipura

Kukwao

Ratanpura

Marushana

JaspuraIndrapura

Ghelara

Nathpura Bhoyani Na Para

Dhandhalpur

Moen

Dangarwa

Bamroli

SurajBhatasan

AlampurDholasan

DhanaliGaneshpura

Narayanpura

TundaliMudarda

Balsasan

KADI

Dabsar

Gunjala

Rudatal

Mokapura

Banti

Jethipara

Nadisala Ambasana

Madrisana

Nani Rantej

Phatepura

Amarpura

Sunvala

Virsoda

Telavi

Memadpura

JakasanaSlrosan

Jipura

Khadolpur

DiwanpuraAbapura

Bhansaria

Ambliyasan

BaliyasanAkwa

Burasari

SARASWATI RIVER

SARASWATI RIV

ER

KHARI R

IVER

SUKHARA RIVER

KHARA RIV

ER

Chekar

ai Rive

r

PUSHMA

WATI R

IVER

KHARI RIV

ER

RUPEN RI

VER

SABARMATI RIVE

R

To Palanpur

To P

alan

pur

SH41

SH41

SH56

SH55

SH41

To Va

dnag

ar

SH73

SH71

SH71

To Gandhinagar

To K

alol

To Kalol

To Kalol

To Gandhinagar

To D

isa

To Radha

npur

To Thara

To Harij

To Chanasma

To Vi

ramga

m

SH18

9

SH135

SH189

SH21

6

SH19

SH134

SH55

SH217

NARAMADA CANAL

NARAMADA CANAL

Abhrampur

Malosan

Motipara

Kara

Kamona

Raolapura

SaduthalaSaola

Putgam

Valam

Kasa VISNAGAR Susi

Kuwasna

Ghagret

Gothwa

BakarpurMorwad

Bilia

Guchhi

Rangakoi

BhalakRalisan

Visol

Lindi

Hison

Mandlop

JasalpurDhonodharda

To V

ijapu

r

VIJAPUR

Mitha

Sarsao

Kesni

Pipal

JiliaNawa

Rampura

Chaveli

Ranasan

DharpuraVadavli

Bhojasar

Brahmanwara

Karora

Bhatsar

ItodaBhat Wasna Chhamichha

PanchasarTakodi

Gambhu Bhalgamda

Merwara

SunsarKokasna

Ambliapura

Delmar

MandaliAmbala

KhambelManiari

Khakhla

Vija purda

ModheraMithi Gharial

AdiwaraSurpura

Doriwara Indla

Delpura

Poyara

Delwara

Dharpura

Sujanpura

Chhatasan

Charasan

Kalri

Dethli

Barieph

MEHSANA

To Gandhinagar

To V

ijapu

r

Bhatriya

Sujpura

LANGHNAJ

Bhadrada

Ranipura

Palavasan

Ditasan

Dholasan





4-4 and also shown in Map 4.2. The proof of Setting up of all the sampling stations is attached as Annexure 5.

Table 4-9: Ambient Air Quality Monitoring Location Details

AAQM Station

Location Location where AAQ station were set up

Name of Contact Person

AA 1 Ubkhal Gram Panchayat Office Mr. Ajay Patel

AA 2 Chadasana Gram Panchayat Office Kankuben J Prajapati (Sarpanch)

AA 3 Bilodra Gram Panchayat Office H.I. Thakore (Sarpanch)

AA 4 Dilwara Gram Panchayat Office Ishwarbhai Hirbhai (Dy. Sarpanch)

AA 5 Ajol Gram Panchayat Office Maheshbhai Tribhovandas Patel (Sarpanch)

AA 6 Lodra Gram Panchayat Office (Talati, Lodra Village Mansa)

AA 7 Ridrol Gram Panchayat Office Pravinsing. K Thakore (Dy. Sarpanch)

AA 8 Fatepura Gram Panchayat Office M. B. Dave (Talati, Mansa)

AA 9 Kherva Gram Panchayat Office Patel Kantibhai S

AA 10 Langhnaj Gram Panchayat Office Patel Madhuben Manubhai (Sarpanch)

AA 11 Irana Gram Panchayat Office Sarpanch

AA 12 Rupal Gram Panchayat Office Patel Nanubhai N (Sarpanch)

AA 13 Bhadrada Gram Panchayat Office Sarpanch

AA 14 Chandrumana Gram Panchayat Office Raval Madhuben Praveenbhai (Sarpanch)





Photographs 4-4: Photographs of AAQ Sampling Stations

AAQ Station at Lodra Village AAQ Station at Kherva Village

Grab Sample at Lodra Village AAQ Station at Ubkhal Village

AAQ Station at Chadasana Village AAQ Station at Dilwara Village





AAQ Station at Ridrol Village AAQ Station at Irana Village

Grab Sample at Dilwara Village AAQ Station at Rupal Village

4.5.3 Sampling Frequency

The frequency of monitoring was 24 hrs twice a week at each station spread over the entire season with gaseous samples being changed six times (at 8-hour intervals).

4.5.4 Parameters Monitored and Methods Used

The parameters monitored were PM10, PM2.5, Sulphur Dioxide (SO2), Nitrogen Oxides (NOx), Hydrocarbons and Volatile Organic Compounds (VOCs). These parameters have been selected based on the guidelines given by the MoEF. The detailed monitoring methodology for ambient air is given in Table 4-10.





Table 4-10: Methodology of Ambient Air Monitoring

Sampling Parameters

Sampling equipment

Analytical Equipment

Sensitivity/Detection Limit

Methodology

PM10

Respirable Dust Sampler with

Cyclone & Flow measurement

Electronic balance

5 g/m3

Gravimetric IS: 5182

(Part 23) 2006

PM2.5 Fine Particulate

Sampler Electronic balance 3 g/m3

Guideline for the measurement of

ambient air pollutant Volume -1 by CPCB, 2011,

Gravimetric

SO2 Gaseous Flow

attachment with RDS Sampler

Spectro photometer

1.7 g/m3 Colorimetric IS:

5182:

(Part II) 2001

NOx Gaseous Flow

attachment with RDS Sampler

Spectro photometer

0.5 g/m3 Colorimetric IS:

5182:

(Part VI) 2006

HC Grab samples Gas

Chromatograph 1ppm

As per equipment manual

VOC Grab samples Gas

Chromatograph 1ppm

As per equipment manual

OIL AND NATURAL GAS CORPORATION LIMITED EIA/EMP AND RA/DMP FOR DRILLING OPERATION OF

EXPLORATORY WELLS IN 30 BLOCKS DESCRIPTION OF THE ENVIRONMENT


4.5.5 Result of Ambient Air Monitoring

Result of ambient air monitoring are given in Table 4-11

Table 4-11: Ambient Air Monitoring Results

Station code

Location (CPCB Designation)

Parameters & Results

Note: All units are in g/Nm3 except VOCs, which are in mg/m3. Figures in brackets indicate CPCB limits. Minimum Reportable Readings are 8 g /Nm3 for SO2, 10 g /Nm3 for NOx, 800g/Nm3 for

THCs, 10 g /Nm3 for NMHCs, and




Station code








KADAM ENVIRONMENTAL CONSULTANTS DECEMBER 2012 103

A comparison of the above results with the value range indicators provided by CPCB

The average concentration of PM2.5 recorded at 14 locations ranged from19 g/m3 (Ridrol village) to 34 g/m3 (Chandrumana and Bilodra Villages). All these values are within the specified limit of CPCB (60 g/m3).

The average concentration of PM10 recorded at 14 locations ranged from 58 (Ajol Village) to 76 g/m3 (Bilodra Village). All these values are within the specified limit of CPCB (100 g/m3).

The average concentration of SO2 were found in range from 9.0 g/m3 (Ubkhal Village) to 10.9 g/m3 (Ridrol Village) All these values are within the specified limit of CPCB (80 g/m3

The average concentration of NOX were found in range from 16.1 g/m3 (Irana Village) to 12.4 g/m3 (Ridrol Village) All these values are within the specified limit of CPCB (80 g/m3

National Ambient air quality standards are given in Annexure 3. The detailed ambient air quality monitoring results are given in Annexure 4.

4.6 Noise and Vibration

Ambient noise level is the background sound pressure level at a given location, normally specified as a reference level to study a new intrusive sound source

Examples of background noises are environmental noises such as waves, traffic noise, alarms, people talking, bio acoustic noise from animals or birds and mechanical noise from devices such as refrigerators or air conditioning, power supplies or motors.

The objective of monitoring background noise level in study area is to establish baseline noise level to identify impact due to proposed drilling activity.

Based on site visit of existing drilling operation in cambay basin, it is observed that exploratory drilling would not have impact on noise environment beyond site boundary or in close vicinity as the drilling locations will be selected such that they would be at a safe distance of 500 meter from nearest habitation.

Hence, nearest habitations or other important locations to proposed wells were selected for baseline noise monitoring.

4.6.1 Noise Sampling and Analysis Methodology

Methodology for monitoring of noise levels is given in Table 4-12

Table 4-12: Monitoring Methodology of noise

Env. Compo-

nent

Sampling location

Sampling Parameter

Sampling Frequency

Sample collection

Methodology Sampling equipment

Detection Limit

Ambient Noise levels

35

Locations

Decibels

dB (A)

Once during the study

Hourly reading for 24 hours at each location

Noise Level Meter

0.1 dB (A) ISLM 100

4.6.2 Noise Level Sampling Locations

Noise level sampling locations are given in Table 4-13. Photographs are shown in Photographs 4-5.





Table 4-13: Noise Level Sampling Locations S.

No. Code No.

Noise Level Station

District Source Date of

Monitoring Name of Contact Person of

Village

1 NL 1 Palavasan Mehsana Residential 15/9/2012 Ashu B Patel

2 NL 2 Heduva

Hanumant Mehsana Residential 15/9/2012

Senma Babubhai Sakarabhai, Sarpanch

3 NL 3 Kadvasan Mehsana Residential 15/9/2012 Taraben Natwarbhai Patel,

Sarpanch

4 NL 4 Baliyasan Mehsana Residential 17/9/2012 Ashok B Thakur

5 NL 5 Ambasan Mehsana Residential 17/9/2012 Vishnubhai Patel, Village

6 NL 6 Ditasan Mehsana Residential 17/9/2012 Praveenbhai, Sarpanch

7 NL 7 Ranipura Mehsana Residential 18/9/2012 Bhailalbhai

8 NL 8 Jagudan Mehsana Residential 18/9/2012 Haribhai Ranchodbhai Patel, Dy.

Sarpanch

9 NL 9 Kochwa Mehsana Residential 18/9/2012 Thakur Ramesh ji, Sarpanch

10 NL 10 Dholasan Mehsana Residential 19/9/2012 Ramesh bhai Navratandas,

Sarpanch

11 NL 11 Mandali Mehsana Residential 19/9/2012 Bismilla Khan Bikhan Khan Pathan,

Sarpanch

12 NL 12 Diwanpura Mehsana Residential 19/9/2012 Jitendra P Patel

13 NL 13 Mudrada Mehsana Residential 20/9/2012 Pratap ji V Thakore, Sarpanch

14 NL 14 Dhanali Mehsana Residential 20/9/2012 Patel Rajendra kumar Maneklal,

Sarpanch

15 NL 15 Tundali Mehsana Residential 20/9/2012 Ibrahim Khan Imam Khan Pathan

16 NL 16 Santhal Mehsana Residential 21/9/2012 Patel Kanaiyalal Bhagvandas,

Sarpanch

17 NL 17 Ghamanpura Mehsana Residential 21/9/2012 Patel Janak kumar Narshi Das

18 NL 18 Deloli Mehsana Residential 21/9/2012 Patel Purshottam Das, Dy.

Sarpanch

19 NL 19 Laxmipura Mehsana Residential 22/9/2012 Jasubhai Viraval

20 NL 20 Devinapura Mehsana Residential 22/9/2012 Patel Natvarbhai Revi Das

21 NL 21 Saduthala Mehsana Residential 22/9/2012 Madhubhai Ishwarbhai , Dy.

Sarpanch

22 NL 22 Kanoda Mehsana Residential 24/9/2012 Babubhai M Patel

23 NL 23 Dhanodara Patan Residential 24/9/2012 Dipikaben Vishnu bhai Patel,

Sarpanch

24 NL 24 Sunsar Patan Residential 24/9/2012 Amitbhai, Talati

25 NL 25 Suraj Mehsana Residential 25/9/2012 Babuji Mathurji Thakor, Sarpanch

26 NL 26 Memadpura Mehsana Residential 25/9/2012 M N Sanabhai, Sarpanch

27 NL 27 Bhatariya Ahmedabad Residential 25/9/2012 Rakesh Kumar D, Talati

28 NL 28 Mathasur Mehsana Residential 26/9/2012 Babudas Punjabhai Patel

29 NL 29 Sunvala Ahmedabad Residential 26/9/2012 Bachubhai Thakor

30 NL 30 Rantej Mehsana Residential 27/9/2012 Dasrath Singh, Sarpanch

31 NL 31 Indrap Mehsana Residential 27/9/2012 Mukeshbhai Suthana

32 NL 32 Sarsav Patan Residential 28/9/2012 Sombhai Ishwarbhai Patel,





S. No.

Code No.

Noise Level Station

District Source Date of

Monitoring Name of Contact Person of

Village

Sarpanch

33 NL 33 Lakhawad Mehsana Residential 28/9/2012 Piyushbhai J Patel, Talati

34 NL 34 Langhnaj Mehsana Residential 28/9/2012 Madhuben M Patel, Sarpanch

35 NL 35 Mehsana Mehsana Residential 29/9/2012 Karsanbhai Patel

Photographs 4-5: Photographs of Noise Level Sampling Locations

Noise Level Monitoring at Ambasan Village Noise Level Monitoring at Dholasan Village

Noise Level Monitoring at Kadvasan Village Noise Level Monitoring at Palavasan Village

ongc patan of different cities from gujrat

Documents

study area

major crops

area pulses

major rivers

class wise area statistics

potato crops

mehsana district

class land