ultratech eia part 1 · draft environment impact assessment report on expansion of m/s ultratech...

DRAFT ENVIRONMENT IMPACT ASSESSMENT REPORT ON

EXPANSION OF M/S ULTRATECH CEMENT LTD UNIT: NARMADA CEMENT MAGDALLA WORKS (FROM 0.72

MMTPA TO 2 MMTPA)‐ MAGDALLA WORKS DUMAS ROAD DIST. SURAT

PREPARED BY

Draft EIA report UltraTech Cement Limited – NCMW- SURAT

Royal environment auditing & Consultancy Services, Rajkot 1

ACKNOWLEDGEMENT

We are very much thankful to M/s UltraTech Cement Ltd (Unit: Narmada

Cement Ltd ), Grinding unit, Magdalla works by assigning the preparation of

Environment Impact Assessment report for proposed expansion project of

grinding unit at Village. Magdalla, Ta. Chorasi, Dist. Surat

We sincerely acknowledge the efforts made by Mr. B.L. Deopura & Mr.

Pinakin Joshi for co- ordination & logistic support during this assignment. We

are very much thankful to Mr. K.Y.P. Kulkarni (Sr. Executive President) for

giving us an opportunity to work with M/s UltraTech Cement Ltd.



TERMS OF REFERENCES

Sr.

No.

Description Reference no.

1. Detailed report for storm water

drainage, management & disposal,

measures proposed to avoid

contamination to the storm water as

well as restricting the contaminated

storm water not allowing it to flow out of

the premises.

Refer Chapter 4

(ANTICIPATED

ENVIRONMENTAL

IMPACTS & MITIGATION

MEASURES) point no.

4.2.3 Water pollution

2 Surface run off management

[contaminated with cement dust]

during the monsoon season.

Refer Chapter 4

(ANTICIPATED

ENVIRONMENTAL

IMPACTS & MITIGATION

MEASURES) point no.

4.2.3 Water pollution

3 Details of possibility of occupational

health hazard from the proposed

manufacturing activities and proposed

measures to prevent it.

Refer Chapter- 5

ENVIRONMENTAL &

OCCUPATIONAL

HEALTH MONITORING

PROGRAMME-

reference no. 5.3

4 Specific details of

(i) Process emission from unit process

with its qualification,

(ii) Air pollution control measures

proposed

(iii) Adequacy of the air pollution

control measured to achieve the

Refer chapter 2.5

SOURCE OF AIR

POLLUTION AND

CONTROL MEASURES

(FUGITIVE + PROCESS)



GPCB norms

(iv) Details of the utility required

(v) Flue gas emission from the utilities

along with stack height calculate

as per Sulphur content in the fuel

(vi) Sources of fugitive emission from

the unit along with its qualification

and proposed measured to

control it.

5 Details of base line ambient air quality

monitoring data of one season other

than monsoon for at least four locations

in 5 km radius study area and impact

analysis due to the proposed project. Air

quality modeling shall be carried out for

prediction of impact of the project on

the air quality of the area. The details of

the model used and the input

parameters used for modeling shall be

shown on the location map clearly

indicating the location of site, location

of sensitive receptors, if any and

habitation. Latest available IMD data

shall be utilized.

Please refer point no.

3.5 and 3.6 of EIA

report.

6 Measures proposed to be taken for the

work area ambient air quality monitoring

as per Gujarat factories rules.

Measures proposed to

be taken for the work

area ambient air

quality

Please refer point 4.1

and 4.2 of EIA report.



7 Base line status of the noise environment

impact of noise on present environment

due to the project and proposed

measures for noise reduction including

engineering controls.

Base line status of Noise


3.7.2 , 3.7.3(Base line

status of Noise) and

point no. 4.2.2

(Mitigation measures of

noise pollution)

8 Source of raw material along with their

mode of transport as well as the air

pollution mitigation measures proposed

during transportation of the various raw

materials.


2.4.5.2 (Source of Raw

material) & 2.5.1.2 (Air

pollution Control

measures).

9 A detailed greenbelt development

program including annual budget. Type

& number of trees to be planted area

under greenbelt development [with

map]; along with commitment of the

management place in the area and

elsewhere.


7.4 A forestation and

Green belt

Development of EIA.

10 A detailed EMP including the protection

and mitigation measures for expect on

human health and environment as well

as detailed monitoring plan with respect

to various parameters and responsible

head for the environmental

management cell and environmental

management cell proposed for

implementation and monitoring of EMP.

Please refer chapter

no. 07 (ENVIRONMENT

MONITORING PLAN)

point no. 7.1, 7.2, 7.3 of

EIA.

11 Details of management of hazardous

wastes to generated frothed project

Please refer

compliance report of



stating details of storage area for each

type of waste, its handling and its

disposal. How the manual handling of

the hazardous wastes shall be

minimized.

CCA.

(Annexure-I & III)

12 To explore the use of renewable energy

to the maximum extent possible.

We can use solar

energy Street light.

13 Provision of industrial hygienist for work

place monitoring.


no. 5.0 ENVIRONMENT

AND OCCUPATION

HEALTH MONITORING

PROGRAME OF EIA

report.

14 A detailed cement dust and silica dust

monitoring plan including the

measurement and control. Plan for

medical examination of the workers

exposed. Report for measurement of

cement dust at workers level as per GFR.

Please refer to chapter

no. 05 ENVIRONMENTAL

MONITORING

PROGRAME OF EIA .

15 Record of medical examination if

workers for the existing plant.


no. 5.0 ENVIRONMENT

AND OCCUPATION

HEALTH MONITORING

PROGRAME OF EIA

report.

16 Record of last five years for any legal

breach of environmental and safety

laws, show cause notice, closure etc.

There is no Legal

breach of

environmental and

safety laws, show-

cause notice, closure



etc.

17 Record of last five year of fatal and non

fatal accidents and dangerous

occurrences under the Gujarat Factories

Rules 1963 (GFR) for factories.

There is no fatal or non

fatal accidents and

dangerous occurrence

under Gujarat Factory

act rules 1963

18 Compliance of the existing CC&A of

GPCB.

Compliance of Existing

CC &A

Please refer Annexure-

II

19 Details of qualified safety officer, factory

medical officer employed for hazardous

process.


no. 5.0 ENVIRONMENT

AND OCCUPATION

HEALTH MONITORING

PROGRAME OF EIA

report.

20 Details of equipment / instrument to

measured record and analyzed

workplace exposure including air and

water quality, noise , vibration,

ventilation, illumination etc.


no. 5.0 ENVIRONMENT

AND OCCUPATION

HEALTH MONITORING

PROGRAME OF EIA

report.

21 Explore possibility of premises floor

sweeping with vacuum cleaner devices

for reducing fugitive dust emission.

The company will

purchase vacuum

cleaner device for floor

cleaning floors to

reduce the fugitive

emission.

22 Detailed cleaner production measure to Refer Chapter No. 2



reduce emission of possible in the

proposed project & commitment of the

management on futuristic development

/ implementation for the same. Type of

ventilation provided/ proposed In the

work area.

(PROJECT

DESCRIPTION) point no.

2.4.5.4

23 Corporate social responsibilities details

including activities carried out so far as

well as the activities proposed and the

financial planning for the financial

planning for the same.

Please refer Chapter 06

(Project Benefits)



INDEX Sr. No.

Description Page No.

CHAPTER-1 INTRODUCTION 1.1 Introduction of the company 15

1.2 Location of the project 16

1.3 Scope of the Study 16

1.3.1 Project Description 16

1.3.2 Description of Environment 17

1.3.3 Meteorology 17

1.3.4 Air Quality 17

1.3.5 Noise 18

1.3.6 Environment Monitoring Programmer 18

1.3.7 Project Benefit 18

1.3.8 Environment Management Plan 18

CHAPTER -2 PROJECT DESCRIPTION

2.1 Purpose of the project 21

2.2 Location & silent features of the project 21

2.3 Proposed schedule for approval and implementation 22

2.4 Analysis of alternative for the site and technology 22

2.4.1 Site Alternative 22

2.4.2 Technology Alternative 23

2.4.3 Brief Project detail 23

2.4.4 Details of existing facilities 23

2.4.5 Process details of existing grinding unit 24

2.4.5.1 Details of present and proposed production 27

2.4.5.2 Raw material details for present and proposed

expansion

27

2.4.5.3 List of equipments for existing and proposed 28

2.4.5.4 List of Air pollution control Measures for existing and

Proposed

30



2.5 Sources of Pollution & control measures 30

2.5.1 Air pollution 30

2.5.1.1 Source of Air pollution 30

2.5.1.2 Air pollution Control measures 32

2.5.2 Water Pollution & Control measures 32

2.5.3 Noise Pollution & Control measures 32

2.6 Air Dispersion Modeling 33

CHAPTER -3 DESCRIPTION OF ENVIRONMENT

3.0 Site & Surrounding of the area 37

3.1 Land Use 37

3.1.1 Land use classification based on census data 2001 38

3.2 Demography & Socio economics 42

3.2.1 Demographic profile of the study area 42

3.2.1.1 Households/Occupied Residential Houses and Total

Population

42

3.2.1.2 Sex ratio 43

3.2.1.3 Schedule caste and schedule tribe 43

3.2.1.4 Literacy 44

3.2.2 Socio economic profile of study area 44

3.2.2.1 Distribution of work participation rate 44

3.2.3 Availability of Infrastructure facilities & amenities 46

3.3 Selection of sampling location 49

3.3.1 Soil Sample 49

3.3.1.1 Methodology 49

3.3.1.2 Physicochemical characteristic of soils in study area 50

3.3.2 Water Sample 50

3.3.2.1 Water source in the study area 50

3.3.2.2 Methodology of Sampling & Analysis 51

3.3.3 Conclusion 53

3.4.1.1 Methodology 54

3.5 Meteorology & Climatology 54



3.5.1 Past Records 55

3.5.1.1 Data collected 55

3.5.1.2 Analysis of climatologically Data 55

3.5.1.3 Rainfall 56

3.5.1.4 Temperature 56

3.5.2 On-Site meteorology 56

3.5.2.1 Wind speed and Direction 62

3.5.2.2 Temperature 63

3.5.2.3 Relative Humidity 63

3.5.2.4 Rainfall 63

3.6 Ambient air quality 63

3.6.1 Methodology adopted for the study 63

3.6.2 Criteria for selection of monitoring locations 63

3.6.3 Frequency & Parameter for monitoring 64

3.6.4 Details of monitoring location 65

3.6.5 Instruments used for sampling 65

3.6.6 Sampling & Analytical Technique 65

3.6.7 Presentation of results 66

3.6.8 Observation based on monitoring result 67

3.6.8.1 Suspended particulate Matter(SPM) 68

3.6.8.2 Respirable Particulate Matter(RPM) 68

3.6.8.3 Sulfur dioxide (SO2) 68

3.6.8.4 Oxide of Nitrogen (NOx) 68

3.6.9 Conclusion 69

3.7 Noise 70

3.7.1 Selection of Monitoring Location 70

3.7.2 Parameter Measured 72

3.7.3 Result & Discussion 72

3.7.4 Noise Standard 73

CHAPTER 4

ANTICIPATED ENVIRONMENT IMPACT & MITIGATION

MEASURES



4.1 Impacts & Measures 75

4.2 Mitigation Measures 77

4.2.1 Air pollution 77

4.2.2 Noise pollution 78

4.2.3 Water pollution 78

CHAPTER 5 ENVIRONMENT & OCCUPATIONAL HEALTH

MONITORING PROGRAMME

5.1 Monitoring of Environment Parameters 81

5.1.1 Meteorology 81

5.1.2 Ambient Air quality 81

5.1.3 Stack emission 81

5.1.4 Effluent quality 81

5.1.5 Noise 81

5.2 Institutional set up for monitoring 82

5.2.1 Details of Instruments/Equipments for Infrastructure

Development

84

5.3 Worker Occupational Health Programmer 84

CHAPTER 6

PROJECT BENEFITS

6.1 Improvement in supply of cement for Infrastructure

Development

86

6.2 Improvement in Infrastructure 86

6.3 Employment potential 89

CHAPTER 7 ENVIRONMENT MANAGEMENT PLAN

7.1 Mitigation measures for construction phase 92

7.2 Mitigation measures for operation phase 94

7.3 Institutional Set up for the company 95

7.4 A forestation & Green Belt Development 96

7.4.1 Procedure for Plantation 97

7.4.2 Selection of Tree species 98

CHAPTER 8 EMERGENCY PREPARDENESS & RESPONSE SYSTEM

8.1 Objective of Rescue plan 106



8.2 Risk & Environment impact Assessment 107

8.3 Environment Impact Assessment 108

8.4 Emergency organization 109

8.5 Key personnel 114

8.5.1 Production, engineering & QC man 114

8.5.2 Safety officer 115

8.5.3 Security Officer 115

8.5.4 CCR operation 116

8.6 Essential personnel team 116

8.6.1 Fire fighting & spill controller 117

8.6.2 First aid and rescue team 117

8.6.3 Engineering services 117

8.6.3.1 Electrical Blackout & power supply 117

8.6.3.2 Technical workforce team 118

8.6.3.3 Arrangement of Vehicles 118

8.6.3.4 Civil Services 118

8.6.3.5 Security 118

8.7 Emergency control centre 119

8.7.1 Communication system 121

8.7.2 Off-site emergency plant 121

Chapter 9 DISCLOSER OF CONSULTANTS 125



LIST OF TABLES

Table No.

Description Page no.

2.4.5.1 Details of Present & Proposed Production 27 2.4.5.2 Raw Material details for Present & Proposed Expansion 27 2.4.5.3 List of Equipment Present & proposed 28 2.4.5.4 List of air pollution control measures Present & Proposed 30 2.5 Process Emission 31 3.1 Land Use Classification Area (% Ha) of Ta. Choryasi 40 3.2 Land Use classification Area (% Ha) of Village Magdalla 41 3.3 Total Population 45 3.4 Medical Facilities 47 3.5 Postal Facilities 48 3.6 Sampling locations of Soil 49 3.7 Soil sample analysis Report 50 3.8 Water sampling location 51 3.9 Water Analysis Report 52 3.10 Salient climatologically Features of IMD Surat (Last 30 Years) 56 3.11 Meteorological data for September -09 58 3.12 Meteorological data for Oct-09 60 3.13 Meteorological data for Nov-09 62 3.14 Ambient Air Monitoring Locations 66 3.15 Instruments used for Monitoring 67 3.16 Ambient Air quality monitoring results 68 3.17 National Ambient Air quality Std 70 3.18 Noise monitoring locations in study area 73 3.19 Ambient air quality standard with respect of Noise 75 4.1 Identification of construction activities & Probable Impacts 76 4.2 Identification of operation & Maintenance activities &

probable impacts 77

5.1 Proposed Environment Monitoring Programmer of UltraTech Cement Ltd. -Magdalla

82

7.1 Mitigation measures proposed to be implemented during Construction Phase

92

7.2 Mitigation measures proposed to be implemented during Operation phase

94

7.3 Nutrient contents of some organic manure 98



LIST OF FIGURES Figure No. Description Page no.

1.1 Location Map of project Site 19 1.2 Satellite imaginary Map 20 2.1 Flow Diagram of existing Project 25 2.2 Flow Diagram of proposed expansion 26 2.3 Roller press 29 2.4 V-Separator in Cement Mill 29 3.1 Land use classification Area in Choryasi 40 3.2 Land Use classification Area of Village

Magdalla 41

3.3 Sex Ratio 43 3.4 Total population 45 3.5 Locations map for Air, Water and Soil Samples 55 3.6 Wind rose Diagram for Sept-09 59 3.7 Wind rose diagram for Oct-09 61 3.8 Wind rose diagram for Nov-09 63 5.1 & 7.1 Organization Chart of NCCL-Magdalla 85 & 95

LIST OF ANNEXURE

Annexure No. Description Page No. 1 Copy of CC & A 126 2 Compliance report of CC & A 127 3 Details of Hazardous Waster Generation, Storage

& Handing 130

4 Copy of Site Layout Plan 131 5 Copy of TOR 132



CHAPTER 1

INTRODUCTION OF THE COMPANY

1.1 NARMADA CEMENT COMPANY LIMITED (NCCL)

howgules had established Narmada Cement Company Limited

with 1.0 million ton linearization capacity in 1982 having

clinkerization plant at Jafarabad & Grinding unit at Magdalla in Gujarat and

Ratnagiri in Maharashtra. Larsen & Turbo Limited took over Narmada cement

by acquisition from Chowgules in 1999.

Aditya Birla Group taken over the Cement business of L&T along with

Narmada Cement in 2004 and made a separate company named as Ultra

Tech Cement Ltd. Later on Narmada Cement is merged with Ultra Tech

Cement Ltd. in 2006

Narmada Cement Grinding Unit was established in 1982 at Magdalla,

aimed to supply Portland Pozzolana Cement to Narmada Sarovar Dam

Project. Government of Gujarat had given full support in setting up this plant.

The Company has been accredited with ISO 9001:2008 - Quality

Management System Standard, ISO 14001:2004 – Environmental

Management System Standard and OHSAS 18001:2007 – Occupational

Health & Safety Management System Standard by the DNV CERTIFICATION B.

V., The Netherlands.

The Narmada Cement – Magdalla Works have a valid CC & A vide

order No. 7735 dated 07/06/2006, Ref. No. : CCA-SRT-639/18110 dated

08/06/2006 Valid up to 18/1/2011. Present capacity of NARMADA CEMENT

GRINDING UNIT IS 0.72 MMTPA.

C



1.2 LOCATION OF THE PROJECT

The proposed expansion is within the existing premises of Narmada

Cement Grinding Unit - Magdalla Works, Surat. The location of the project is

at southern part of Gujarat. It is 20 Km away from well known Surat city.

Located At Latitude 21º 8’ N & On Longitude 72º 44’ E in South Gujarat.

On The Southern Bank of River Tapti 16 kms Upstream of River.

1.3 SCOPE OF THE STUDY

In order to identify the environmental impacts due to proposed

modernization of plant & its associated facilities by installing roller press,

clinker silo and upgrading existing cement mill capacity at Narmada

Grinding Unit - Magdalla & to draw a suitable environmental management

plan to mitigate adverse impacts, if any, an Environmental Impact

Assessment study has been undertaken.

The satellite picture of the location is shown in Figure – 1.

M/s. UltraTech Cement Limited, Unit: Narmada Cement – Magdalla

Works has retained M/s. Royal Environment Auditing & Consultancy Services,

Rajkot to carry out Environmental Impact Assessment for expansion of its

existing grinding Unit – Magdalla works, Surat.

The EIA Study covers baseline data generation, predictions and

evaluation of impact on various environmental components and formulation

of Environmental Management Plan and Disaster Management Plan. The

Scope of the EIA Study is briefly described in the following sections.

1.3.1 PROJECT DESCRIPTION

This includes a concise description of Existing process which is likely to

affect environment. It includes Type of Project, Need for the Project (based

on demand supply position), Location Details, Magnitude of Operation,

Proposed Schedule for Approval and Implementation, Project Description

(Layout, Components etc.), Mitigation Measures to meet environmental

standards, environmental operating conditions etc., presented in Chapter



2.0. As UltraTech Cement Limited, Narmada Cement – Magdalla Works shall

use a well established and well tested technology for Clinker Grinding and

conveying system.

1.3.2 DESCRIPTION OF THE ENVIRONMENT

The baseline environmental scenario has been established through

primary data generated in the study area and secondary data available at

site/ published in literature. The field monitoring started in first week of Sept,

2009 and completed on last week of November 2009.

The EIA Report is based on primary data collected during September

2009 to November 2009 for meteorology, air quality, and noise and

secondary data (for the relevant disciplines). The baseline environmental

scenario has been presented in Chapter 3.0 and methodologies adopted

under various disciplines are briefly described in following sections.

1.3.3 METEOROLOGY

On site meteorological data was generated during the study,

1.3.4 AIR QUALITY

Ambient Air Quality has been characterized with respect to SO2, NOx,

Suspended Particulate Matter (SPM) and Repairable Particulate Matter (RPM)

by field monitoring at eight locations The suspended particulate matter &

RSPM present in the ambient air has been analyzed and incorporated in the

report.

At each location, 24 hour sampling was undertaken twice a week. The

data was analyzed for maximum, minimum and average and compared

with National Ambient Air Quality Standards.



1.3.5 NOISE

A noise survey was undertaken at 6 locations within the study area and

inside the plant to assess the background noise levels in different zones Noise

levels were measured using an Integrating sound level meter and Leq values

have been calculated for 24 hours.

1.3.6 ENVIRONMENTAL MONITORING PROGRAMMER

Based on the finding of impact assessment and recommendation in

the EIA an environmental monitoring programmer has been formulated for

Narmada Cement Grinding unit - Magdalla works.

The monitoring programmer specifies the locations, parameters,

methodologies and frequency of monitoring for emissions and discharges as

well as ambient environment for the major disciplines. It is included in Chapter

5.0, i.e. Environmental Monitoring Programmer.

1.3.7 PROJECT BENEFITS

Due to development of infrastructure across the country as well as

improvement in the growth rate, Market demand for cement is increased

substantially since last 3-4 years.

To bridge the demand and supply gap in southern Gujarat and to tap

the potential of the unit, the company has proposed for expansion of existing

Grinding unit at Magdalla from 0.72 MMTPA to 2.0 MMTPA.

These aspects are summarized in Chapter 6.0.

1.3.8 ENVIRONMENTAL MANAGEMENT PLAN

It includes Environmental Management Plans for expansion of Grinding

unit and its associates facilities of UltraTech Cement Limited, Unit : Narmada

Cement – Magdalla Works. Chapter 7.0. It includes the description of the

institutional set-up for ensuring that meditative measures are implemented

and their effectiveness monitored, after approval of the EIA.



Figure 1.1 Location Map of project site



Figure 1.2 Satellite Imaginary Map



CHAPTER 2

PROJECT DESCRIPTION

2.1 PURPOSE OF THE PROJECT

ue to development of infrastructure across the country as well as

improvement in the growth rate, Market demand for cement is

increased substantially since last 3-4 years.

To bridge the demand and supply gap in southern Gujarat and to tap

the potential of the unit, the company has proposed for expansion of existing

Grinding unit at Magdalla from 0.72 MMTPA to 2.0 MMTPA by installing a roller

press, increasing the capacity of existing cement mill and clinker silo within a

company premises.

2.2 LOCATION & SILENT FEATURES OF THE PROJECT

Location of Project Magdalla port, Dumas Road, Surat-395007 Latitude 21º 8’ N & On Longitude 72º 44’ E in South Gujarat

Maximum Temperature

42 Deg C in March -09

Minimum Temperature

14 Deg C in Oct-09

Min Relative Humidity 51% in July-09 Max Relative Humidity 84% in Oct-09 Nearest Highway N. H. No. 8 Nearby Railway station

Surat railway station -20 km

Nearest Airport Surat Airport- 4 km Nearest Town facility Surat 15 kms from plant area Nearest settlement Gavier 2 kms Nearest river River Tapi- Southern Bank -16 kms upstream of river Nearest Forest None within 10 km Nearest Industries Ambuja cement, ABG ship yard Sensitive places None within 10 km

D



2.3 PROPOSED SCHEDULE FOR APPROVAL AND

IMPLEMENTATION

The zero date of the project is reckoned from the date of grant of

“Consent to Establish” (NOC) by the GPCB. The proposed expansion project

will be commissioned within 5 to 6 months from the date of grant of “Consent

to Establish” (NOC) from GPCB & Environmental Clearance from Department

of Environment and Forest, Gandhinagar. .

2.4 ANALYSIS OF ALTERNATIVE FOR SITE AND TECHNOLOGY

UltraTech cement Ltd- unit Nermada Cement ltd- Magdalla works is

proposed for expansion of existing grinding unit from 0.72 MMTPA to 2 MMTPA

at existing site i.e. village magdalla , Dist. Surat. Analysis of alternative based

on based on site and technology are given below.

2.4.1 SITE ALTERNATIVE

To set up cement grinding unit is a site specific project and it is not

possible to choose alternative site due to restriction of raw materials like fly

ash, chemical gypsum and port facilities.

Availability of land within a existing premises of the

company

Proximity to National highway no. 8

Absence of any irrigation canal or drainage channel within

a selected area.

There is no displacement

No Ecological sensitive placed within 10 KM radius

Availability of port located for finished product

transportation and receipt of raw material.

Availability of workers in nearby areas.



2.4.2 TECHNOLOGY ALTERNATIVE

Technical concept and equipment sizing has been

finalized based on determinates and industry norms for Cement

Grinding unit. Emphasis has been given on optimum layout, energy

efficient and environment friendly modern plant considering all project

aspects.

It is proposed to installed roller press, clinker silo and to

increase the existing cement mill capacity by installing a cyclone

separator.

The laboratory is equipped for testing of raw materials, fuel

and sample preparation as well as chemical and physical testing.

2.4.3 BRIEF PROJECT DETAILS

Nermada cement grinding unit – Magdalla works having present

capacity of 0.72 MMTPA. The unit will do expansion from 0.72 MMTPA to 2.0

MMTPA. The unit is situated on the bank of river Tapti in Surat & proposed

expansion project will be done in the existing premises of the company. No

additional land is required for proposed project.

2.4.4 DETAILS OF EXISTING FACILITIES

Jetty Details : Length : 143 Meters, Width : 11 Meters.

Draft : 2.5 – 4.5 Meters.

Jetty belongs to GMB

Built exclusively for Narmada cement operation

Plant Area : Owned:1,76,606 Sq. meter. *Leased: 22,360 Sq.

meter.

Plant Capacity: 0.72 MMTPA Cement Grinding & Packing inclusive of

0.36 MMTPA bulk cement unloading & packing facility.

Power Source : From Dakshin Gujarat Vij Company Limited [DGVCL]

66 KV Double Circuit with 4500 KVA Contract Demand



2.4.5 PROCESS DETAILS OF EXISTING GRINDING FACILITIES

Clinker is brought by ships having maximum capacity up to 2600 MT

from our mother unit, Narmada Cement – Jafarabad Works. Clinker is

unloaded with the help of clinker unloader of 300 TPH capacity installed on

river jetty and fed into the clinker silos through belt conveyors. The unloaded

clinker is stored in 2 silos having capacity of 8000 MT each. Gypsum is

procured from nearby chemical factories and fly ash from Thermal Power

Station at Ukai. We have separate storing and feeding facilities for gypsum &

fly ash. Dry chemical gypsum is fed into the gypsum bin through hopper and

belt conveyor.

The clinker and gypsum are extracted from respective storage silos/bin

in desired proportions through weigh feeders and fed to the Cement Ball Mill

having capacity of 100 TPH through belt conveyor for grinding. Ground

cement is taken to O'Sepa for separation into fine and coarse through air

slides and bucket elevators. Fine cement of desired fineness is fed to the

cement silos through air slides and bucket elevators and coarse is fed back

to mill for further grinding along with fresh feed. The cement from cement silos

is extracted and conveyed to the packer bin through air slides and bucket

elevators. The cement is packed in 50 kg HDPP bags with the help of six

spouts Electronic Packer of 90 TPH capacity. Packed cement bag is loaded

into the trucks through belt conveyors for dispatches to destination.

UTCL Magdalla is producing two types of cement namely OPC 53 and

PPC (Fly ash based). The two types of cement are stored in separate silos as

per the requirement. We have 4 nos of silos of 4000 MT capacity.

Packers are separate for OPC & PPC grade cements. We are also

dispatching cement in bulk through bousers and open trucks.

UTCL Magdalla caters market of South Gujarat and Mumbai region at

90% and 10% respectively. All orders are received from CMTG, UltraTech for

trade and non-trade (project) supply & the dispatches are executed through

road transport and logistic for the same is controlled from logistic division of



UltraTech, Mumbai, through the distribution department at Magdalla. Entire

transportation of cement is achieved through local transporters for Gujarat.

Figure 2.1



Figure 2.2



2.4.5 DESCRIPTION OF PROPOSED EXPANSION OF GRINDING UNIT

Now are days due to development of Infrastructure in various parts of country

the demand of Cement is increased dramatically.

2.4.5.1 DETAILS OF PRESENT AND PROPOSED PRODUCTION

2.4.5.2 RAW MATERIAL DETAILS FOR PRESENT AND PROPOSE EXPANSION.

Details of present and proposed raw materials consumption is given below ;

Sr. No.

Existing quantity Raw

Material

Million M.T. per Annum

Proposed quantity of Raw

Material

Million M.T. per Annum

Source of Raw

material 1. Clinker 0.647 Clinker 1.55 From NCCL-

Jafarabad 2. Chemical

Gypsum 0.029 Chemical

Gypsum 0.08 Near by

dyes Industries

3. Marine Gypsum

0.014 Marine Gypsum 0.04

4. Fly Ash 0.030 Fly Ash 0.33 Surat power plant

0.72 2.0

Sr. No.

Present Condition Revised (Proposed) Condition

1. Production Million M.T.

per Annum

Production Million M.T.

per Annum

1. Ordinary Portland

Cement(

Manufacturing at

Magdalla )

0.60

Ordinary Portland

Cement/Portland

Pozolana Cement

Manufactured at

Magdalla (inclusive

of cement/Clinker

receipt through ship

from GCW / NFJD)

2.0 2. Portland Pozolana

Cement (

Manufacturing at

Magdalla)

0.12

Total 0.72 2.0



2.4.5.3 List of equipments Existing and Proposed: Existing list of

Equipment

Rated Capacity

in TPH

Proposed list of

Equipment

Rated Capacity

in TPH

1. Cement

Unloader 1 x 200

1. Cement

Unloader 1 x 200

2. Clinker

Unloader 1 x 300

2. Clinker

Unloader 2 x 300

3. Cement Mill 1 x 100 3. Cement Mill 1 x 205

4. Packer 2 x 90 4. Packer 3 x 90

5. Clinker

Transport 1 x 300

5. Clinker

Transport 2 x 300

6. Clinker

Storage Silo 2 x 8000 MT

6. Clinker

Storage Silo

2 x 8000 MT &

1 x 50000 MT

7. Roller Press

with V-Separator 400

7. Cement Silo 4000 MT x 4 8.Cement Silo 4000 MT x 4

8. Fly Ash Silo 450 MT x 1 9. Fly Ash Silo 450 MT x 1

450 MT x 1



Figure 2.3

ROLLER PRESS

Figure-2.4

V-SEPERATOR IN CEMENT MILL



2.4.5.4 LIST OF AIR POLLUTION CONTROL MEASURES EXISTING AND

PROPOSED.

Sr. No.

Existing list of Air Pollution control

measures

Name of existing

Equipment

Proposed list of Air Pollution control

measures

Name of Proposed

Equipment

1 Pulse Jet type Bag Filter

1. Ball Mill Pulse Jet type Bag Filter

1. Roller Press

2 -do- 2. Cement Mill -do- 2. Ball Mill

3 -do- 3. Clinker Silo-I -do- 3. Cement Mill

4 -do- 4.Clinker Silo-II -do- 4. Clinker Silo-I

5 -do- 5. Cement Silo -do- 5.Clinker Silo-II

6.Clinker Silo-III

6 -do- 6. Packer-I -do- 7. Cement Silo

7 -do- 7. Packer-II -do- 8. Packer-I

8 -do- 8. Fly Ash Bin -do- 9. Packer-II

9 -do- 9. Clinker Unloader

-do- 10. Packer-III

10 -do- 11. Fly Ash Bin

11 -do- 12. Clinker Unloader

2.5 SOURCES OF POLLUTION AND CONTROL MEASURES

2.5.1 AIR POLLUTION

2.5.1.1 SOURCES OF AIR POLLUTION

Fugitive Emission

The fugitive dust emissions from the proposed Truck loading facility would be

significant and the sources will be as under:

1. loading/Unloading of Clinker and fly ash

2. Transportation of vehicles

3. Transfer of product through belt conveyor



Table 2.5

Process Emission Sr. No

Name of Stack

Stack Height (m)

Stack Diameter (M)

Stack Temp (deg. C)

Stack exit gas velocity (m/sec)

Emission (mg/Nm3)

Emission Rate (gm/Sec)

Remark

1 Roller Press

15 0.5 x 0.5 72 11.45 85 0.243 Proposed

2 Ball Mill

15 0.775 x 0.52

70 10.5 78 0.330 Existing

3 Cement Mill

15 0.775 x 0.52

75 11.46 75 0.346 -do-

4 Clinker Silo-I

15 0.32 x 0.25

42 12.5 95 0.095 -do-

5 Clinker Silo-II

15 0.32x 0.25 42 11.30 85 0.076 -do-

6. Clinker Silo-III

15 0.32x 0.25 48 13.5 90 0.0972 Proposed

7 Cement Silo

50 0.5 x 0.4 44 14.5 74 0.2146 Existing

8 Packer-I 30 0.64 x 0.5 42 13.5 70 0.302 -do-

9 Packer-II 30 0.64 x 0.5 45 14.5 85 0.3944 -do-

10 Packer-II 30 0.64 x 0.5 45 13.2 65 0.2745 Proposed



2.5.1.2 AIR POLLUTION CONTROL MEASURES

To control fugitive emissions, the following measures are proposed.

Raw materials loading and unloading will be done in the covered

area.

Raw materials will be stored in the covered structure.

The sprinkling of water will be done along the internal roads in the

plant in order to control the dust.

All the workers and officers working inside the plant will be provided

with disposable dust masks.

Green belt will be developed around the plant to arrest the fugitive

emissions.

Bag filters & Dust Collectors will be cleaned regularly.

Maintenance of bag filters will be done regularly.

Closed belt conveyor will be used for transfer of raw material/product.

To control process dust emission the following measures are adopted .

The vent is attached to the bag filters of adequate height to disperse the air

pollutants to the satisfactory levels. The vent is regularly monitored for PM.

Bag filters will be cleaned regularly.

2.5.2. WATER POLLUTION & CONTROL MEASURES

No water is used in entire process of grinding. So, there is no waste water

generation and hence no scope of water pollution.

The only use of water i.e. drinking water and the source of effluent i.e.

sewage and hand washing.

For sewage water septic tank system is already provided.

2.5.3. Noise Pollution & Control measures

Main source of Noise pollution is vehicular movement during construction

phase. In order to reduce this following measures to be taken.

1. Speed limit of vehicle shall be restricted by 30 KMPH



2. Regular maintenance of vehicles shall be done

3. Ear plug or Ear muff to be used in high noise prone area.

2.6 AIR MODELLING

Gaussian dispersion Model

Assumption of the Gaussian model Release and sampling times are long compared to the travel time from

source to receptor. This means that the release is effectively steady

state and that diffusion along the mean wind direction is negligible

compared to advection. Measurement time scales of hours rather than

minutes are implied.

The material is chemically stable and is not deposited to the ground.

This means that gases must be uncreative and particles must be <20

um in diameter so that they do not sediment out. The equation of

continuity will then apply- the integral of the concentration over all

space at any time is equal to the total mass of material emitted. In

practice, most gases are deposited to some extent. This can be

allowed for by, for example an additional exponential decay factor in

the concentration with distance from the source.

The lateral and vertical variations of the material concentration can

both be described by Gaussian distributions, which are functions of x

only.

The wind speed is constant with height. This is never true in practice, as

has already been seen. Wind speed variation with height can often be

described by a logarithmic profile. More advanced versions of

Gaussian formulation divide the atmosphere up into layers, each layer

having a specified set of characteristic such as wind speed and

stability.

The wind direction is constant with height. Again this is rarely true. The

most common form of the variation is the Ekman spiral, in which the



direction tends towards the geotropic as height increases, over the first

few hundred meters

Source Characteristics

Stack Attached to : Roller press

Stack height : 15 m

Internal radius : 0.70 m

Exit speed : 11.45 m/s

Exit Temperature : 345 K

Environment Condition

Wind speed at 10 m : 17.6 m/s

Weather : Sunny

Air temperature at stack height : 283 K

Step 1: Find the stability Category

Average wind speed is 0.83 m/s during the steady period and weather was

clear. We have category B.

Step 2: Calculate dy and dz

From pasquill category table for open country and for stability of B class

Dy(m) = 0.16x (1 + 0.0001x)^-0.5

Dz(m)= 0.12x

X (m)

Distance from source

Dy(m) Dz(m)

1000 152 120

500 78 60

250 39.5 30

100 15.92 12



Step 3: Calculate wind speed at release height

V = Vo(Z/Zo)^P ( P= exponent for rough terrain, Z= height of gas release)

= 0.83(15/1)^0.15

= 1.24 m/s

Step 4: Calculate the plum rise and effective release height

Fb = Wo R2 g (T2-T1)/T2

Wo= Flue gas exit velocity = 11.45 m/s

R= Inside stack diameter = 0.70 m

T2= Initial plume temperature = 345 K

T1 = Ambient temperature at stack height= 298 K

Fb= 7.49 m4/S3 which is <55.

If Fb is <55 then plum rise will be

Dh = 21 Fb^0.75 / V

= 21 (7.49) ^0.75 / 1.24

= 76.67 m

Effective release height = 15 + 76.67 m= 91.67 m

Step 5:

Solve the dispersion equation

Q(x,0,0)= Q exp[-H2/2dz2]

-------------------

3.14 * V* dy*dz



X(m) Dy Dz Concentration of SPM at x distance

from source(ug/M3)

1000 152 120 2.651

500 78 60 4.76

250 39.5 30 18.84

Above results are well below the permissible limits.



CHAPTER 3

DESCRIPTION OF ENVIRONMENT 3.0 SITE AND SURROUNDING AREA

his chapter describes the existing environmental conditions of the study

area, which covers an area within 10 km radius around proposed

expansion of Narmada cement limit Grinding Unit- Magdalla works and its

associates facility. The methodology of establishing baseline environmental

scenario has been briefly described in Chapter 1.0 and further details of data

generation/ collection; analysis and interpretation are presented in the

respective sections in this chapter.

The entire study area falls in Surat district Gujarat. The study area shows flat

topography in the vicinity of the project site. The field monitoring started at

site on first week of September 2009. Apart from primary data generated

during the field monitoring, additional data was also collected from

secondary sources like Indian Meteorological Department (IMD)- Surat.

3.1 LAND USE

Land is the most vital resource for sustenance of life and degradations of land

use to industrialization; urbanization and population growth is a matter of

concern. Therefore, it is necessary to establish the existing land use pattern to

optimize the land use as well as minimize degradation due to the

developmental activities.

The basic of land use classification for the purpose of EMP study report is to

define the distribution of the existing land according to its actual use. The

land use pattern indicates the manner in which different parts of land in the

study area is being utilized or un-utilized. It is an important indicator of

environmental health and human activity and a degree of inter-play

between these two.

T



Even though the soil quality, water availability and climatic conditions have

strong influence on agriculture and vegetation, the human activity may alter

the natural environment to a large extent to suit human needs. Unsuitable

land use often triggers rapid environmental deterioration and disturbs

ecological balance.

The objectives of the present study are:

• To map the study area with respect to various land use/land cover

categories

• To identify the sensitive areas within 10 km radius around the project site.

The land use pattern has been established based on Census Data of 2001

and truth verifications. Ground and ancillary information have been used to

identify the sensitive places within 10 km radius of the proposed project.

3.1.1 LAND USE CLASSIFICATION BASED ON CENSUS DATA 2001

In traditional revenue records in India, major land use classifications are; (a)

Hills and rocky land, (b) Forests, (c) Pastures (d) Hebetated areas (e)

Cultivated areas (f) Cultural wasteland (g) Un-cultural wasteland. The land

use classification has varied somewhat from state to state and often

overlaps. Furthermore, combining of two or more categories into a single one

could also be found.

The above classification appears to be partly a land classification and partly

a land use classification. Only large-scale shifts in land use pattern, such as,

forests areas converted in to cultivated area can be observed from revenue

records. The shifting in cropping pattern, on the cultivated areas, is a slightly

better and more sensitive indicator of change in environmental quality but

even this reflects human manipulation due to environmental changes.



As outlined earlier, the study area for this project encompasses areas falling

within a 10 km radius of the plant site. The entire study area falls in Surat

district in one Taluka namely Chorasi in Gujarat. As per the census records -

2001, the area is predominantly rural in character.

The Census records, do not classify land as ‘Hilly and rocky’ or ‘Pastures’ or

‘Hebetated area.’ It appears that, ‘Hilly and rocky’ areas are included in

‘Uncultivable land,’ Pastures are included in ‘Cultivable waste land’ and

‘Hebetated area’ are included in ‘Area not available for cultivation’. In

revenue records total land of a village is classified in two categories (a)

Cultural land (b) Un-cultural land. Cultivable land is further sub-classified into

cultivated area and cultural wasteland. Un-Cultivable land includes

hebetated area, forest and pasture land covered by roads and buildings.

Land use pattern as per the census records of 2001, has been classified in the

following categories:

Forest

Cultivated Land

Irrigated Land

Un-irrigated Land

Cultivable wasteland

Area not available for cultivation

i) The following points are important to be mentioned regarding the land

use pattern described in this chapter :

ii) Taluka has been used as a unit of civic administration as used in the

census records for the state of Gujarat.

iii) Land use classes have been computed on the basis of land use area of

industrial villages, falling totally or partly as the case may be, within the study

area.



iv) Land use area does not always tally with the geographical area, as

there are waterways etc. that may not be included in the land use statistics

of the villages. Summary of land use pattern data has been presented in

Table below.

TABLE 3.1 Land Use Classification Area (Hectare %) of Ta. chorasi

Land Use Classification Area In

Hectare

Irrigated 9891.08

Un irrigated 9551.15

Cultivable Waste land 5725.2

Area Not Available for cultivation 10378.19

Figure: 3.1

Land Use Classification Area of Ta. Chorasi

27.83%

26.87%16.11%

29.20% Irrigated

Unirrigated

Culturable waste land

Area not available forcultivation



TABLE 3.2 Land Use Classification Area (ha) of Village. Magdalla

Land Use Classification Area in

Hectare

Irrigated 35.95

Unirrigated 96.5

Cultivable waste land 12

Area not available for

cultivation

104.2

Figure no. 3.2

Land Use Classifaction Area of Village Magdalla

14.46%

38.81%

4.83%

41.91%

Irrigated

Unirrigated

Culturable waste land

Area not available forcultivation

On perusal of the data compiled from the Census Records of 2001 following

facts can be delineated:



3.2 DEMOGRAPHY AND SOCIO-ECONOMIC

Demography and socio-economic features include population, number

of houses and households, literacy, population density etc. In order to assess

the demographic features of the study area, census data of Surat District in

Gujarat for the year 2001 have been compiled and analyzed.

3.2.1 DEMOGRAPHIC PROFILE OF THE STUDY AREA

3.2.1.1 HOUSEHOLDS/OCCUPIED RESIDENTIAL HOUSES AND TOTAL

POPULATION

The total 127,093 households in Chorasi Taluka as well as residential houses

distributed over 62 villages as per census record of 2001.

The total 1,234 households in Magdalla village as per census record of 2001.

Total Population:

The\ total population of the village Magdalla stood at 5,257 out of which

Total population of males is 2,831 & Females is 2,426 as per the census record

of 2001.

While total population of Chorasi Taluka stood at 585,733 out of which total

population of males is 340,020 and females are 245,713 as per the census

record of 2001.



Figure 3.3 Sex Ratio

Total Population For Magdalla

Male 53.85%

Female 46.15% Male

Female

Total Population For Taluka : Chorasi

Female41.95%

Male58.05%

MaleFemale

3.2.1.2 Sex Ratio

In the village Magdalla area, there were 857 females for every thousand

males, Whereas in total Chorasi Taluka, there were 723 females for every

thousand males, as per the census records of 2001.

3.2.1.3 Scheduled Castes and Scheduled Tribes



Scheduled Castes & Scheduled Tribes

As per the census data of 2001, scheduled caste population observed was

18111 and scheduled Tribe population was 54811 in the Chorasi Taluka.

The proportion of SC was 3 % and ST was 9 % of total population in the

Chorasi Taluka.

Major scheduled caste recorded in the study area are Mahyavansi, Bhambi

and Mahar etc. and the major scheduled tribes shown in the study area area

Gamit, Bhil and Chaudhari.

3.2.1.4 Literacy

A person who can both read and write with understanding in any language is

taken as literate according to Indian Census.

As per Census of India 2001 total literate population of Taluka Chorasi is

407,445 which is 81 % of the total population.

3.2.2 SOCIO-ECONOMIC PROFILE OF THE STUDY AREA

3.2.2.1 Distribution of Work Participation Rate

The work participation rate for total workers is defined as the percentage of

total workers to the total population. In a similar way it is defined for main and

marginal workers.

The work participation rate for total workers is defined as the percentage of

total workers to total population. In a similar way it is defined for main,

marginal and non-workers.



TABLE 3.3

TOTAL POPULATION

Details Total % Of total

population

Total population 585,733

1. Total workers 241,432 41

Total Main workers 230,225 95.36

Total Marginal

workers

11,207 4.64

2. Total Non workers 344,301 59

Figure no. 3.4

TOTAL POPULATION

Distribution of Work Participation Rate for Chorasi Taluka

41%

59%

Total WorkersTotal Non workers



Distribution of Total Workers for Chorasi

95.36%

4.64%

Main WorkerMarginal Worker

3.2.3 AVAILABILITY OF INFRASTRUCTURE FACILITIES AND AMENITIES

(i) Educational Facilities

Out of the 62 villages, falling within Chorasi Taluka, there were all villages with

Primary Schools, 15 villages have secondary school and 5 villages have senior

secondary schools as per census record 2001. .

Higher educational facilities are available in town only. There is no medical

and engineering college in the Taluka chorasi. Surat city is a hub of

educations, Mega city of Gujarat and has facility of polytechnic, Engineering,

medical, physiotherapy and other educational courses are available. As per

the census record, other town i.e. Bardoli have college education facilities.

(ii) Medical Facilities

In the rural area, medical facilities are very poor. Detail of all the 62 villages of

Taluka Chorasi are as under.

Details are taken from Census of India 2001.



TABLE 3.4

Medical Facilities

Sr.

No.

Details Total

no

Total no of villages

have facilities

Availabl

e

Not

available

1 Number of Medical facilities 62 42 20

2 Number of Allopathic

Hospitals 62 4 58

3 Number of Family Welfare

Centre 62 6 56

4 Number of Meternity Home 62 4 58

(iii) Drinking Water Facilities

In the rural area, drinking water facility is present in most of the villages. Rivers,

Wells and tube wells are the major sources of drinking water. In the rural part

of the study area, almost all the villages are enjoying tap water facility

provided by the Gram Panchayat its community development

programmer.

(iv) Postal Facilities

In the study area, post and telegraph facility is available in the most of

villages.

Details of postal Facilities as per Census of India 2001 are as under in total 62

villages of Taluka Chorasi.



TABLE 3.5

Postal Facilities Sr.

No.

Details Total

No

Total No of villages

Have facilities

Availabl

e

Not

available

1 Number of post and

telegraph office 62 58 04

2 Number of telephone

connections 62 57 05

(v) Weekly Market Facility

Generally large villages have at least a few permanent kirana shops, which

cater to the daily necessities of the residents. In the rural part of the study

area not even a single village is having weekly market facility.

(vi) Transport and Communication

If a bus stop or a railway station or a navigable waterway is located within

the territorial jurisdiction of a village, it is considered to have been served by

such facility even if it is a little away from the actual settlement.

Communication facilities are available in most of the study area villages. Out

of 62 villages, 58 villages have Bus transport facility.

(vii) Approach Road

Almost all the villages can be approached by pucca road while the

remaining can be approached by katcha road facility.

zThe district is provided with a well managed transport system both private

and public, connecting the different parts of the district.



(viii) Recreational and Cultural Facility

The infrastructural facilities in general meet the requirements of the people.

However, it requires to be further improved, especially with respect to

transport and communication and medical facilities.

Out of 62 villages no village have video hall, sports club, stadium or

auditorium.

3.3 SELECTION OF SAMPLING LOCATIONS

3.3.1. SOIL SAMPLE

Five soil sampling locations were identified based on the local distribution of

vegetation and the agricultural practices. The sampling locations are shown

in Table : 3.4 .1

TABLE : 3.6

SAMPLING LOCATION

Location Location

code

Distance from proposed

project(km)

Magdalla S1 1.5

Hazira S2 04

Gavier S3 1.5

Dumas S4 1.5

Bhimpore S5 7.8

3.3.1.1 METHODOLOGY

The soil samples were collected in the month of September 2009 for post

monsoon season. The samples collected from the all locations are

homogeneous representative of each location. At random 5 sub locations

were identified at each location and soil was dug from 30 cm below the

surface. It was uniformly mixed before homogenizing the soil samples. The

samples were filled in polythene bags, labeled in the field with number and

site name and sent to laboratory for analysis.



3.3.1.2 PHYSICOCHEMICAL CHARACTERISTICS OF THE SOILS IN THE STUDY AREA

The soil samples analysis results is given in Table : 3.7

TABLE : 3.7

SOIL ANALYSIS REPORT Sr.No. Parameter Location S1 S2 S3 S4 S5 1 Conductivity(umhos/cm) 311 278 345 465 386 2 pH 7.78 7.83 7.80 7.76 7.87 3 Total Organic Carbon (%) 0.375 0.300 0.420 0.380 0.330 4 Nitrogen % 0.007 0.006 0.006 0.008 0.007 5 Phosphorus % 0.30 0.27 0.29 0.33 0.30 6 Potassium % 0.58 0.52 0.64 0.59 0.6

3.3.2 WATER SAMPLES

3.3.2.1 WATER SOURCES IN THE STUDY AREA

The ground water availability in the area is good; in some villages there are

open wells, which are refined. In some villages there are small check-dams,

which is filled from rainwater, are the main sources of water for the villagers.

The people of this area use the ground water for their general purpose.

Table 3.8

Water Sampling locations: Sr. No.

Location Location code

Distance from site

Source

1 Dumas- Gram panchayat well water

W1 1.5 km Borewell

2 Magdalla- Mr. Virabhai patel’s well

W2 1.5 km Borewell

3 Vesu- Mr. Ashokbhai patel’s well

W3 3.8 Km Borewell

4 Gavier- Mr. Pradipbhai patel’s well

W4 1.5 Km Borewell

5 Bhimpore well water W5 7.8 Borewell



3.3.2.2 METHODOLOGY OF SAMPLING AND ANALYSIS

Water samples were collected on monthly basis during the study period and

analyzed for selected physico-chemical and biological parameters. The

parameters such as pH, temperature and DO were analyzed at the site itself

at the time of collection of sample (with the help of water testing kit

developed by CPCB) while for other parameter, samples were preserved and

analysed in laboratory. Samples were collected, preserved and analyzed as

per methods given in Standard Methods for the Examination of Water and

Waste Water (APHA, AWWA and WPCF).

The water quality characteristics of the study area have been established

through monthly monitoring of the following parameters:

a) Physical Parameters – pH, Total Solids, TDS and dissolved oxygen.

b) Chemical parameters – Alkalinity, Total Hardness, NO3, Chloride, Sulfate,

Ca, Mg, Phosphate

c) Heavy Metals – Copper, Iron, Chromium, Cadmium, Lead, Zinc etc.

Map of Sampling location w.r.t. Ambient Air Quality; Soil; Water and Noise is

given Figure – 5.



TABLE 3.9

ANALYSIS OF WATER FROM SURROUDING AREA Sr. No.

Parameters W1 W2 W3 W4 W5 IS-10500 Desirable limit

Permissible limit

01. pH 8.5 8.7 8.6 8.8 7.3 6.5-8.5 02. TDS 560 470 1870 470 1070 03. S.S. 125 135 430 128 238 04. T.S. 685 605 2300 598 1308 05. Chloride 55 90 490 95 225 250 1000 06. Sulfate 7 11 108 11 55 07. Total

Hardness 100 220 440 220 340 300 600

08. Ca Hardness

60 130 300 120 230 75 200

09. Mg Hardness

40 90 140 100 110

10. Alkalinity 130 120 110 90 90 11 Phosphate 0.001 0.008 0.007 0.006 0.001 12 Dissolved

Oxygen 6.9 6.7 6.5 6.3 6.2

13 Oil & grease

<0.2 <0.2 <0.2 <0.2 <0.2 0.01 0.03

14 Arsenic(as As)

<0.02 <0.02 <0.02 <0.02 <0.02 0.05 NR

15 Mercury(as Hg)

<0.0001

<0.0001

<0.0001

<0.0001

<0.0001

0.001 NR

16 Lead(as pb)

<0.002

<0.002

<0.002

<0.002 <0.002

0.05 NR

17 Cadmium(As cd)

<0.002

<0.002

<0.002

<0.002 <0.002

0.01 NR

18 Hexavalent chromium

<0.004

<0.004

<0.004

<0.004 <0.004

0.05 NR

19 Copper(as Cu)

<0.004

<0.004

<0.004

<0.004 <0.004

0.05 1.5

20 Zinc(as Zn) 0.028 0.019 0.015 N.D. N.D. 5 15 21 Selenium(a

s Se) <0.001

<0.001

<0.001

<0.001 <0.001

0.01 NR

22 Iron(as Fe) 0.18 0.14 0.12 0.1 0.1 0.088 1 23 Phenolic

compound <0.005

<0.005

<0.005

<0.005 <0.005

0.001 0.002

* Desirable limit specified in Indian Specifications for Drinking Water (IS: 10500

– 1991)



** Permissible limit, in absence of alternate source specified in IS: 10500 – 1991.

All the units are in mg/l except pH.

3.3.3 Conclusion

pH of drinking water of study area varies from 7.3 to 8.8

Total dissolved solid varies from 470 to 1870 mg/l

Total dissolved oxygen varies from 6.2 to 6.9 mg/l

Chloride varies from 55 to 490 mg/l

Total Hardness varies from 100 to 440 mg/l

Metallic impurities are very less in all the samples.

Water from all the sample point can be use for drinking water.

WATER SAMPLES COLLECTION FROM SURROUNDING AREA



3.3.4 Methodology Figure 3.5

LOCATION MAP FOR AIR, WATER AND SOIL SAMPLES

3.5 METEOROLOGY AND CLIMATOLOGY

Meteorology determines the general weather patterns and thus identifies the

probable pollution patterns. The climate of project area is arid. Hot and dry

summer from March to May, a monsoon or rainy season from June to

September and a cool pleasant winter from October to February

characterize it. However, climatologically, four seasons viz. summer (pre-

monsoon), monsoon, post-monsoon and winter could be deciphered

comprising the following months:

Summer (Pre-monsoon): March, April, May

Monsoon: June, July, August, September

Post-monsoon: October, November

Winter: December, January, February.



3.5.1 Past Records

3.5.1.1 Data Collected

Analysis of past records brings out the synoptic features of the area.

Climatologically data was collected from the nearest meteorological station

operated by Indian Meteorological Department (IMD) at Surat located

about 20 km from the project site and the data recorded at this station has

been used to describe the climatology of the area.

3.5.1.2 Analysis of Climatologically Data

Climatologically data for last 30 years collected from IMD, Surat is

incorporated and presented in Table 3.10.

TABLE: 3.10

SALIENT CLIMATOLOGICALLY FEATURES OF IMD SURAT (30 YEARS AVERAGE)

(PERIOD 1951-1980)

Month

Mean

Temperature(oC)

Mean

Total

Rainfall

(mm)

Mean

Number

of Rainy

Days

Mean Number of days with

Daily

Minimum

Daily

Maximum HAIL Thunder FOG SQUALL

Jan 14.3 31.5 0.0 0.0 0.0 0.1 1.0 0.0 Feb 16.1 33.5 0.4 0.0 0.0 0.0 0.5 0.0 Mar 20.1 36.2 1.5 0.2 0.0 0.2 0.1 0.0 Apr 23.7 37.7 0.3 0.0 0.0 0.2 0.0 0.0 May 26.4 36.4 7.3 0.3 0.0 0.4 0.0 0.0 Jun 26.6 33.8 249.3 8.0 0.0 1.9 0.0 0.0 Jul 25.4 31.0 417.7 15.4 0.0 0.7 0.0 0.0

Aug 25.0 30.6 299.4 13.2 0.0 0.6 0.0 0.0 Sep 24.4 32.2 190.7 7.6 0.0 1.6 0.0 0.0 Oct 23.0 35.9 27.2 1.2 0.0 0.5 0.3 0.0 Nov 19.3 35.3 13.0 0.8 0.0 0.1 0.5 0.0 Dec 16.1 32.9 2.6 0.1 0.0 0.0 0.8 0.0

Annual 21.7 33.9 1209.4 46.8 0.0 6.3 3.2 0.0



3.5.1.3 RAINFALL

The average annual rainfall is about 1209.4 mm. Rainfall peaks during June

(about 249.3 mm) followed by July (about 417.7 mm) with the four monsoon

months (June to September) contributing 96% of the total rainfall.

3.5.1.4 TEMPERATURE

The average annual minimum temperature is 21.7 deg C and average

annual maximum temperature is 33.9 deg C.

3.5.2 ON –SITE METEOROLOGY

In order to corroborate and supplement the long-term meteorological data

collected from IMD, Surat and to generate site-specific data, an Automatic

Weather Station (WM 250) of M/s Envirotech Instrument Pvt. Ltd. make was

installed at the project site at Narmada cement Ltd- Grinding unti- Magdalla

works, Ta. Chorasi, Dist. Surat. In this report the on-site meteorological data

collected from September-2009 to November- 2009 has been incorporated

and analyzed. Monthly variation in on-site meteorological parameters at site

has been given in Table 3.11; 3.12 & 3.13 .



TABLE: 3.11

METEROLOGICAL DATA FOR SEPTEMBER-09 Date

Date

Temp o C Temp o C Humidity

(%)

Wind

Direction

Wind Speed (km/hr)

Velocity (km/hr) Min Max Dry Wat

1-9-09 17 34 28 26 69 NE SW 2.0

2-9-09 17 33 36 30 63 NE SW 1.0

3-9-09 14 28 28 26 69 NE SW 1.7

4-9-09 14 29 36 30 63 NE SW 3.3

5-9-09 13 33 34 26 51 NE SW 4.0

6-9-09 15 36 34 26 51 NE SW 4.0

7-9-09 18 39 38 26 69 NE SW 1.0

8-9-09 18 39 34 26 51 NE SW 1.0

9-9-09 17 38 38 26 69 NE SW 2.0

10-9-09 18 39 38 26 69 NE SW 1.0

11-9-09 17 39 38 26 69 NE SW 1.0

12-9-09 17 38 32 28 73 NE SW 1.5

13-9-09 16 39 32 28 73 NE SW 2.0

14-9-09 16 38 38 26 69 NE SW 2.5

15-9-09 17 39 38 26 69 NE SW 2.0

16-9-09 18 39 34 26 51 SW NE 1.0

17-9-09 17 38 34 56 51 SW NE 1.2

21-9-09 16 38 34 26 51 NE SW 1.0

22-9-09 19 38 34 26 51 NE SW 1.0

23-9-09 16 37 36 30 63 SW NE 1.3

24-9-09 18 39 34 26 51 SW NE 2.2

25-9-09 16 36 34 26 51 SW NE 2.0

26-9-09 17 38 36 30 63 SW NE 3.5

27-9-09 16 36 36 30 63 SW NE 1.2

28-9-09 17 36 36 30 63 SW NE 3.5

29-9-09 18 37 36 30 63 SW NE 3.0

30-9-09 17 38 32 28 73 SW NE 5.1



Figure no. 3.6



TABLE: 3.12 METEROLOGICAL DATA FOR OCTOBER-09

Date Temp o C Temp o C Humidity (%)

Wind Direction

Wind Velocity (km/hr)

Min Max Dry Wet

1-10-09 16 36 34 26 51 SW NE 8.1 2-10-09 17 37 34 26 51 SW NE 2.0 3-10-09 16 38 34 26 51 SW NE 3.1 4-10-09 16 34 32 28 73 SW NE 2.0 5-10-09 16 35 36 30 63 NE SW 3.5 6-10-09 15 36 36 30 63 NE SW 1.5 7-10-09 15 37 34 30 74 NE SW 1.6 8-10-09 15 37 32 28 73 SW NE 8.3 9-10-09 15 38 34 30 74 SW NE 9.3

10-10-09 14 39 25 23 84 SW NE 3.3 11-10-09 16 38 32 28 73 NE SW 1.5 12-10-09 17 38 30 26 72 NE SW 1.5 13-10-09 15 40 30 26 72 NE SW 1.0 14-10-09 14 39 30 23 53 NE SW 0.9 15-10-09 15 38 30 23 53 NE SW 1.0 16-10-09 14 37 30 26 72 NE SW 1.0 17-10-09 15 36 30 24 71 NE –SW 1.2 18-10-09 14 37 30 26 72 NE-SW 1.3 19-10-09 15 37 30 26 73 NE-SW 1.3 20-10-09 16 35 30 26 72 NE SW 1.3 21-10-09 17 36 32 28 73 NE SW 2.0 22-10-09 14 37 32 25 73 NE SW 2.0 24-10-09 16 34 32 24 73 SW NE 1.5 25-10-09 15 33 32 28 73 SW NE 2.2 26-10-09 14 34 36 30 63 SW NE 2.0 27-10-09 17 33 30 28 73 SW NE 1.0 28-10-09 19 35 32 28 13 SW NE 2.2 29-10-09 20 39 25 23 84 SE NW 1.0 30-10-09 19 40 25 23 84 SE NW 0.8 31-10-09 20 39 32 28 73 SE NW 0.3



Figure no. 3.7



TABLE: 3.13

METEROLOGICAL DATA FOR NOVEMBER-09

Date

Temp o C Temp o C Humidity (%)

Wind Direction

Wind Velocity (km/hr)

Min Max Dry Wat

1-11-09 17 35 30 23 53 SW NE 1.5 2-11-09 16 39 30 26 72 SW NE 1.5 3-11-09 20 41 30 23 53 SW NE 0.8 4-11-09 22 41 32 28 73 NE SW 0.8 5-11-09 20 39 32 28 73 NE SW 0.5 6-11-09 22 40 31 22 44 NE->SW 0.7 7-11-09 21 41 32 28 73 SE->NW 1.5 8-11-09 22 39 30 23 53 SW->NE 2 9-11-09 25 39 30 23 53 SE->NW 3.5

10-11-09 22 28 23 21 83 SE->NW 2.5 11-11-09 21 28 23 21 83 SE->NW 5 12-11-09 20 30 23 21 83 SE->NW 20 13-11-09 20 37 23 21 83 SE->NW 27.7 14-11-09 15 36 23 21 83 SE->NW 1.5 15-11-09 14 36 24 22 83 SE->NW 1 16-11-09 14 37 25 23 84 SE->NW 1 17-11-09 14 37 25 23 84 SE->NW 1 18-11-09 21 36 26 22 69 SE->NW 1 19-11-09 11 38 26 22 69 SE->NW 2.9 20-11-09 21 35 26 22 69 SE->NW 1 21-11-09 20 38 28 22 57 NE->SW 2.4 22-11-09 21 36 28 22 57 NE->SW 1.1 23-11-09 22 37 26 22 57 NE->SW 0.8 24-11-09 23 36 25 21 58 NE->SW 1.1 25-11-09 20 38 23 21 83 SE->NW 0.6 26-11-09 20 38 24 21 83 NE->SW 0.6 27-11-09 20 35 23 22 83 SE->NW 0.5 28-11-09 20 40 26 21 83 SE->NW 0.5 29-11-09 21 39 26 22 69 SE->NW 0.5 30-11-09 20 38 26 22 69 SE->NW 0.5



Figure no. 3.8

3.5.2.1 Wind Speed and Direction

Wind rose diagram for study period has been prepared based on hourly

reading of wind speed and direction. Winds are moderate with minimum

speed of 0.3 km/hr in the month of Oct - 09. Maximum wind speed 27.7

km/hr was observed in the month of Nov - 09. Wind Rose diagram is given in

Drawing No. 5; 6 & 7.



3.5.2.2 Temperature

Minimum temperature was recorded as 11 deg C in the month of November-

09 & while the maximum temperature observed was 40 deg 0C in the Oct-

09.

3.5.2.3 Relative Humidity

Minimum relative humidity was observed as 51 % in the month of September-

09 and Octomber-09 and Maximum relative humidity was observed as 84 in

the month of Octomber-09 respectively.

3.5.2.4 Rainfall

During study period no rainfall recorded.

3.6 AMBIENT AIR QUALITY

The prime objective of the baseline study with respect to ambient air quality is

to establish the present air quality and its conformity to ambient air quality

standards. This data has been further used during impact assessment to

predict the resultant ambient air quality during operation of proposed jetty

expansion and its associates facilities, The sources of air pollution at the site

are vehicular traffic, loading and unloading of cements, dust arising from

roads and during transfer of raw materials and product. .

This section describes the identification of monitoring locations; methodology

adopted for monitoring, frequency of monitoring and results of monitoring

during the study period (September 2009 – November-2009).

3.6.1 METHODOLOGY ADOPTED FOR THE STUDY

3.6.2 CRITERIA FOR SELECTION OF MONITORING LOCATIONS

The baseline status of the ambient air quality has been established on the

basis of the following considerations:



1. Meteorological conditions;

2. Representative ness of locations for obtaining baseline status; and

3. Representative ness of likely affected area.

Three ambient air quality monitoring locations were selected on the basis of

likely affected zones during construction and operation of the plant and also

keeping in view the above mentioned points. The location of human

workplace and above features within the study area have been considered

in selection of ambient air quality monitoring locations.

Logistic considerations as easy accessibility, security, availability of reliable

power supply etc were also examined while finalizing the locations.

The Ambient Air Quality Monitoring locations are shown in below table.

TABLE: 3.14

Ambient Air Quality Monitoring Locations

Station Code Location Distance from proposed site

(KM)

AAQ1 Nr. Jetty area 0.75

AAQ2 Nr. Admn. Building 0.5

AAQ3 Nr. Security Main Gate 0.5

AAQ4 Village – Magdalla 1.5

AAQ5 Village - Hazira 3

AAQ6 Village – Gavier 2

AAQ7 Village – Dumas 6

AAQ8 Village –Bhimpore 8

3.6.3 FREQUENCY AND PARAMETERS FOR MONITORING

Ambient air quality monitoring has been carried out with a frequency of two

24 hourly samples per week at Three locations. The baseline data of ambient

air has been generated for the following parameters:



Suspended Particulate Matter (SPM);

Respirable Particulate Matter (RPM);

Sulphur Dioxide (SO2); and

Oxides of Nitrogen (NOx);

3.6.4 DETAILS OF THE MONITORING LOCATIONS

The monitoring locations represent the areas of maximum deposition,

reference ambient air quality and location characteristics.

3.6.5 INSTRUMENT USED FOR SAMPLING

Repairable Dust Samplers APM – 460 BL, Gaseous Attachment APM-451 of

Envirotech Instruments Pvt. Ltd. make were installed for monitoring Suspended

Particulate Matter (SPM), Respirable fraction (<10 microns) and gaseous

pollutants like SO2 and NOx.

3.6.6 SAMPLING AND ANALYTICAL TECHNIQUE

Suspended Particulate Matter (SPM), RPM, SO2 and NOx

SPM and RSPM present in ambient air is sucked through the cyclone. Coarse

and non repairable dust is separated from the air stream by centrifugal forces

acting on the solid particles matter and RSPM present in these separated

particulates fall through the cyclone’s conical hopper and collected in the

sampling cap placed at the bottom. The fine dust (<10 microns) forming the

repairable fraction of the SPM passes the cyclone and is retained by the filter

paper. A tapping is provided on the suction side of the blower to provide

suction for sampling air through a set of impinges. The techniques used for

ambient air quality monitoring are as under:



TABLE 3.15

INSTRUMENT USED FOR MONITORING Parameter Technique Technical

Protocol Minimum Detectable Limit(ug/M3)

Suspended Particulate Matter

Respirable Dust Sampler (Gravimetric method)

IS-5182 (Part-IV)

1.0

Respirable Particulate Matter

Respirable Dust Sampler (Gravimetric method)

IS-5182 (Part-IV)

1.0

Sulphur Dioxide West and Gaeke IS-5182 (Part-II)

5.0

Oxide of Nitrogen

Jacob & Hochheiser

IS-5182 (Part-VI)

5.0

3.6.7 PRESENTATION OF RESULTS

The summarized data for minimum, maximum and average of RPM, SPM, SO2

and NOX during the study period are presented in Table : 3.16



TABLE: 3.16

AMBIENT AIR QUALITY MONITORING RESULTS Pollutant Unit Location Min Max Avg SPM Ug/m3 AAQ1

AAQ2 AAQ3 AAQ4 AAQ5 AAQ6 AAQ7 AAQ8

145 120 135 122 120 115 108 100

166 134 176 139 145 130 125 120

155.5 127 155.5 130.5 132.5 122.5 116.5 110

RPM Ug/m3 AAQ1 AAQ2 AAQ3 AAQ4 AAQ5 AAQ6 AAQ7 AAQ8

27 24 33 23 25 27 25 23

36 34 40 37 39 33 38 33

31.5 29 36.5 30 32 30 31.5 28

S02 Ug/m3 AAQ1 AAQ2 AAQ3 AAQ4 AAQ5 AAQ6 AAQ7 AAQ8

7.3 6.4 7.9 7.1 6.2 6.7 6.0 6.3

9.7 9.6 13.7 10.1 9.0 8.9 8.5 8.3

8.5 8.0 10.8 8.6 7.6 7.8 7.25 7.3

N0X Ug/m3 AAQ1 AAQ2 AAQ3 AAQ4 AAQ5 AAQ6 AAQ7 AAQ8

9.8 10.1 10.9 10.2 10.0 9.8 10.5 10.7

10.2 14.4 15.3 16.0 17.5 14.6 13.8 13.0

10 12.25 12.5 13.1 13.75 12.2 12.15 11.85

3.6.8 OBSERVATION BASED ON MONITORING DATA

The observations based on the monitoring results presented in Table have

been summarized below.



3.6.8.1 SUSPENDED PARTICULATE MATTER (SPM)

The maximum value of SPM 176 µg/m3 observed at security main gate &

lowest concentration was observed at village Bhimpore which is 100 µg/m3

during the study period.

The average concentration of SPM varied from 110 µg/m3 to 155.5 µg/m3 at

all monitoring locations during the study period, which is well below the

permissible limit of 200 µg/m3 for residential/ rural area.

3.6.8.2 RESPIRABLE PARTICULATE MATTER (RPM)

The maximum value of RPM was observed at security main gate 40 µg/m3

and lowest 23 µg/m3 at village Bhimpore.

The average concentration of RPM varied from 28 µg/m3 to 36.5 µg/m3. At

all the locations, the concentration of RPM was observed within the

permissible limit of 100 µg/m3 for 24 hourly in a residential area.

3.6.8.3 SULPHUR DIOXIDE (SO2)

The highest concentration of SO2 was observed as 13.7 µg/m3 at security

gate and lowest concentration 6.3 µg/m3 at village Bhimpore.

The average concentration of SO2 varied from 10.8 µg/m3 to 7.3 µg/m3. At

all the locations, the concentrations of SO2 were within the permissible limit of

80.0 µg/m3 in residential /rural area as per National Ambient Air Quality

Standards.

3.6.8.4 OXIDE OF NITROGEN (NOx)

Highest concentration of NOx observed as 17.5 µg/m3 at hazira village &

lowest concentration of 9.8 µg/m3 at village Gavier.



The average concentration of NOx varied from 10 µg/m3 to 13.75 µg/m3. At

all the locations, the concentrations of NOx were within the permissible limit of

80.0 µg/m3 in residential/rural area as per National Ambient Air Quality

Standards.

3.6.9 CONCLUSION

On perusal of the results presented in Table it can be concluded that the

concentration of pollutants like SPM, RPM, SO2, and NOx in ambient air in the

study area are well within the permissible limit of NAAQS. The National

Ambient Air Quality Standard is presented in Table : 3.17

TABLE : 3.17

National Ambient Air Quality Standard (value in µg/m3)

Pollutant Time weighted Average

Industrial Area

Residential Area

Sensitive area

SO2 Annual Average* 24 hr Average**

80 80

60 80

15 30

NOx Annual Average* 24 hr Average**

80 80

60 80

15 30

SPM Annual Average* 24 hr Average**

360 500

140 200

70 100

RPM Annual Average* 24 hr Average**

120 150

60 100

50 75

* Annual Arithmetic mean of minimum 104 measurements in a year taken

twice

a week 24 hourly at uniform interval.

** 24 hourly/8 hourly values should be met 98th percentile of the time in a

year.

However, 2% of the time, it may exceed but not on two consecutive days.



NOTE:

1. National Ambient Air Quality Standards: The levels of air quality with an

adequate margin of safety, to protect the public health, vegetation and

property.

2. Whenever and wherever two consecutive values exceed the limit specified

above for the respective category, it would be considered adequate reason

to institute regular/continuous monitoring and further investigations.

Source: S. O. 384 (E), Air (Prevention & Control of Pollution) Act, 1981 dated

April 11, 1994 and [EPA Notification: GSR 176 (E), April 2, 1996]

FIELD MONITORING WORK DONE FOR BASELINE DATA COLLECTION

3.7 NOISE

Noise survey was conducted in the study area in the month of November-

2009 to assess the background noise levels in different areas.

3.7.1 SELECTION OF MONITORING LOCATIONS

To understand the environment in the study area around the proposed

project site noise survey was conducted. The noise monitoring was



conducted at Four locations in the study area. Details of the locations have

been presented in below Table.

There is different type of fields for measuring the ambient noise level, which

can be categorized as free field, near field and far field.

Free Field

The free field is defined as a region where sound wave propagates without

obstruction from source to the receiver. In such case, the inverse square law

can be applied so that the sound pressure level decreases by 6dB (A) as the

distance is doubled.

Near Field

The near field is defined as that region close to the source where the inverse

square law does not apply. Usually this region is located within a few

wavelengths from the source.

Far Field

The far field is defined as that region which is at a distance of more than 1

meter from the source.

Table 3.18

Details of Noise Monitoring Locations in Study area

Station code Location

N1 Nr. Jetty Area

N2 Nr. Security Gate

N3 Village : Magdalla

N4 Village : Hazira

N5 Village : Gavier

N6 Village : Dumas

N7 Village : Bhimpore



3.7.2 PARAMETERS MEASURED

The important parameters measured are Leq, Lday and Lnight .

Leq: Noise monitoring equipments have the facility for measurement of Leq

directly.

However, Leq can also be calculated using the following equation:

Leq (hrly) = L50 + (L10 - L90)2 / 60

Where,

L10 (Ten Percentile Exceeding Level) is the level of sound, which exceeds 10%

of the total time of measurement.

L50 (Fifty Percentile Exceeding Level) is the level of sound, which exceeds 50%

of the total time of measurement.

L90 (Ninety Percentile Exceeding Level) is the level of sound, which exceeds

90% of the total time of measurement.

Lday : This represents Leq of daytime. Lday is calculated as Logarithmic

average using the hourly Leq’s for day time hours from 6.00 A.M to 10.00 P.M

Lnight: This represents Leq of nighttime. Lnight is calculated as Logarithmic

average using the hourly Leq’s for nighttime hours from 10.00 PM to 6.00 A.M.

Method of Monitoring

Noise monitoring was carried out continuously for 24-hours outside the plant

premises. During each hour, parameters like L10, L50, L90 and Leq were

directly computed by the instrument based on the Sound Pressure Levels

(SPL).

3.7.3 RESULTS AND DISCUSSIONS

The summary of measured parameters like Leq., Lday, Lnight, L10, L50, L90 for

all the sampling locations in the month of November-2009, has been

presented in The overall Leq value varied between 49.4 dB(A) to 60.3 dB(A) in

all locations. Day time and night time Leq value varied between 52.6 dB(A) to

58.9 dB(A) and 38.2 dB(A) to 51.5 dB(A) respectively.



The highest noise level 56.7 dB(A) was recorded at village hazira due to

vehicular traffic and running of the various industrial plants machineries and

the lowest Leq value 49.4 dB(A) was recorded at Magdalla village.

The highest Lday 58.9 dB(A) was recorded at village Magdalla. The highest

value of Lnight 51.5 dB(A) was recorded at village Gavier and lowest 52.6

dB(A) at village Magdalla.

It is noted that the noise levels were within the permissible limit of the ambient

air quality standards with respect to noise both during day time and nighttime

at most of the locations.

TABLE: 3.18

Noise Level In the study area

Location

Code

Monitoring Location Noise Level in (dB)

L10 L50 L90 Leq Lday Lnight

N1 Jetty Area 59.2 55.4 49.8 56.9 56.8 49.2

N2 Nr. Security Gate 60.4 56.5 52.7 57.5 54.3 38.2

N3 Village : Magdalla 53.2 46.8 40.8 49.4 52.6 42.5

N4 Village : Hazira 61.4 59.6 56.7 60.3 58.2 50.4

N5 Village : Gavier 60.2 59.8 56.5 58.8 58.9 51.5

N6 Village : Dumas 60.0 59.3 56.9 58.2 58.3 50.8

N7 Village : Bhimpore 60.6 59.1 56.2 58.0 58.1 50.0

3.7.4 NOISE STANDARDS

The Ambient Air Quality Standards with respect to Noise have been stipulated

by Govt. of India vide Gazette Notification dated 14.2.2000. Table 3.11.3

describes Ambient Noise Standards. Damage Risk Criteria for Hearing Loss

stipulated by Occupational Safety and Health Administration (OSHA) has

been depicted in Table: 3.2.4



TABLE: 3.19

Ambient Air Quality Standards with Respect to Noise

* Environment (Protection) Third Amendment Rules, 2000.

Gazette Notification Government of India dated 14.2.2000.

** Day Time: 6.00 AM to 10.00 PM

# Night Time: 10.00 PM to 6.00 A.M

@ Silence zone is defined as an area up to 100 meters around such premises

as hospitals, educational institutions and courts. The silence zones are to be

declared by the competent authority; Use of vehicular horns, loudspeakers

and bursting of crackers shall be banned in these zones;

Area Code Category of area Limits in dB(A) Leq

**Day #Night

A Industrial area 75 70

B Commercial area 65 55

C Residential area 55 45

D Silence Zone@ 50 40

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