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PRE- FEASIBILITY

REPORT

PROJECT: Napaslabs Quarry

APPLICANT: Sri K. Vamsi Krishna PRE- FEASIBILITY REPORT

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1. EXECUTIVE SUMMARY

1.1 Introduction

The mine lease area for Napaslabs over an extent of 1.25 ha. in Sy. No. 850/1B, & 3 of

Goli Village, Rentachintala Mandal, Guntur District, Andhra Pradesh has been allotted to

Sri K. Vamsi Krishna for a period of 10 years by the Asst. Director of Mines & Geology;

Dachepalli.

The salient features of the project are given Table 1.1.

TABLE 1.1: Salient features of the project

Mining Lease Area 1.25 ha

Location

Sy. No. 850/1B&3, Goli Village,

Rentachintala Mandal,

Guntur District, Andhra Pradesh - 522421

Toposheet No. 56 P/10

Topography The lease area is on ground level.

Minerals of mine Napaslabs Quarry

Proposed production of mine. 3,800TPA / Annum (Highest production in 5 years)

Method of mining Semi-mechanization open cast mining

Water demand 2.5KLD

No. of working Days 250

Sources of water Bore well & Tankers

Ultimate depth of Mining 1 m

Man power 21

Nearest railway station Dachepalli Railway Station is 21 km due E

Nearest state highway/national

highway NH-02 is 5.57 km due SE

Nearest Airport Vijayawada (Gannavaram) Airport is 136.34 km due

ESE Project Cost Rs. 20 Lakhs

2. INTRODUCTION OF THE PROJECT/ BACKGROUND INFORMATION

2.1 Identification of Project and Project Proponent

Sri K. Vamsi Krishna is a private Lessee. The Lessee is having significant experience in

Napaslabs Mining & Trading for the last 10 years.

The proposed Napaslabs mine is located in Sy.No.850/1B&3 of Goli Village, Rentachintala

Mandal, Guntur District, Andhra Pradesh over an area of 1.25 Ha..

The Assistant Director of Mines & Geology, Dachepalli has decided to grant a quarry lease in

favor of Sri K. Vamsi Krishna for a period of 10 years subject to submission of Approved

Mining Plan within a period of 6 months from the date of issue of proceeding



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No.528/Q/2011, dated: 25-08-2014 as per Rule 12 (5) (c) and Rule 12 (5) (f) of Andhra

Pradesh Minor Mineral Rules, 1966.

2.2 Brief Information about the Project

The mining lease area of 1.25 Ha. opencast semi-mechanized mining is followed and it has

been proposed to produce approximately 2990 tons/ Annum of Napaslabs. The nearest

habitation, Goli is located at a distance of 0.12 km due SW from lease area. The mandal head

quarters Rentachintala is located at a distance of 4.71 km SE of the Q.L applied area.

2.3 Need for the Project and Its Importance to the Country or Region

Napa Slabs is a form of building stone material (rough flooring stones), typically produced by

mining a suitable rock deposit and breaking the removed rock down to the desired size of

slabs using crushers. The demand for Nap Slabs has increased due to rapid housing

development, industrialization and growth in infrastructure. Due to the State bifurcation there

will be rapid development in infrastructure sector.

As per National Green Tribunal Judgment pronounced on 13.01.2015, the proponent has

applied to State Level Environmental Appraisal Committee/State level Impact Assessment

Authority of Andhra Pradesh to obtain Environment Clearance.

2.4 Demand and supply

There is huge demand since the material is used extensively in Construction, Building,

Roadways and many other sectors with the increase in infrastructure development. This

project will help in reducing the Demand-Supply gap in the area.

2.5 Domestic/ Export Markets

The material is used in the domestic market and in there is no scope for exporting the

material.

2.6 Employment Generation

Open cast semi mechanized mining is going to be used except for transport. About total 21

workers are going to be engaged for at least 250 days in a year for loading Napaslabs in to

trucks / tractors/ tippers. It will provide indirect employment to several workers in the area.

The occupation of the local inhabitants in surrounding villages of the mine area is

Agriculture. The mining activity in this belt will benefit the locals both directly and

indirectly. The directly beneficiaries will be those who get employed in the mines as skilled

and unskilled workers. In the long run a lot of social goods are expected in the comparatively

backward area when the inhabitants will be able to send their children to school.

3. PROJECT DESCRIPTION

3.1 Type of Project Including Interlinked and Interdependent Projects, If Any.

The proposed mine area is of 1.25 Ha.. No interlinked projects were associated with this

project.

3.2 Location of the project

http://en.wikipedia.org/wiki/Construction_aggregate

http://en.wikipedia.org/wiki/Crusher



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The proposed Napaslabs mine is located in 850/1B & 3 of Goli Village, Rentachintala

Mandal, Guntur District, Andhra Pradesh over an area of 1.25 Ha.. The mining lease area

falls in Survey of India Topo sheet No. 56 P/10.

The Geo Co-ordinates of the mine lease are:

TABLE 3.2: Latitudes and Longitudes

GCP Latitude Longitude

1 16°35'59.58"N 79°31'37.58"E

2 16°36'1.50"N 79°31'38.04"E

3 16°36'2. 70"N 79°31 '38.00"E

4 16°36'2.78"N 79°31 '39.48"E

5 16°36' 1.54 "N 79°31'39.46"E

6 16°36' 1.68 "N 79°31 '44.86"E

7 16°35'59.75"N 79°31 '43.32"E

Location of the mining lease in Guntur District in Google Earth Image is shown in Fig – 1.

Mine lease area location on Map of India is enclosed as Fig - 2.



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FIG – 1

GOOGLE IMAGE SHOWING THE MINE LEASE AREA



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FIG – 2

LOCATION MAP

3.3 Details of Alternate Sites

No alternate site was considered as the project is mineral specific and site specific.

3.4 Size or magnitude of operation

The proposed mine has lease over an area of 1.25 Ha. and the production rate is 2990 Tons

per Annum of Napaslabs. The lease follows open cast semi- mechanized mining.

Mine Lease Area



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3.4.1 Topography

The lease area is on ground level. The area is devoid of any forest or tree cover. It comprises

shrubs only. The lowest contour is 27 m and highest contour is 28 m in topo plan. The topo-

relief of the area is 1m. The general direction of ground water flow is towards SE. The areas

of Guntur, Paland and Sattenapalle taluks form a part of the Krishna River Basin. The height

of water table ranges from 10m above m.s.l. In the SE i.e., adjacent to Bay of Bengal, up to as

high as 200m in the upland areas in parts of Paland and Vinukonda taluks. The quarry lease

applied area is surrounded by numerous water bodies. The areas around are agricultural lands

at a distance of 0.63 km E.

3.4.2 Regional Geology

Major part of the district is a pedi plain interspersed with residual hills. The Srisailam Plateau

occupies Western part. The Eastern part is a deltaic plain, having a vast stretch of outwash

deposits with paleochannels of Krishna River. The area fringing the coast constitutes a strand

plain. The prominent peaks are Swanukonda (605m) and Kakirlakonda (590m). The

important rivers are Krishna and its tributaries viz., Munneru, Chandravanka and Naguleru

which drain the area in a southeasterly direction.

The district consists of an array of rock formations ranging in age from Archean to Recent.

The Archeans consist of Khondalite and Chamockite Groups of Eastern Ghats Supergroup

and the rocks of the Peninsular Gneissic Complex, comprising granitoids and granitic

gneisses, having 18 wide variations in chemical composition and tectonic environment. The

granitoids and gneisses are intruded by a number of gabbro, norite and doleritc dykes.

Uncomfortably overlying the above rocks the Proterozoic sediments of Cuddapah Supergroup

and Kurnool Group occurs. The Upper Gondwanas of Carboniferous to Cretaceous age occur

as isolated patches spouting through the flood plain deposits. Unconsolidated to semi

consolidated deltaic deposits of Quaternary age are confined to the coastal tracts towards

eastern and southeastern parts.

3.4.3 Exploration:

The quarry is a running quarry. The proposed quarry is surrounded by active Napaslabs

quarries that are already working. The Napa slabs are rough building stones extensively used

in the construction and building sector. The rate of recovery is 80% with 20% waste.

This quarry has been running previously. As the EC is needed to be obtained as per the NGT

orders, the process is initiated. As per the process a part of submitted documents is the quarry

plan. The mine has been developed much before this document submission. Therefore any

new development is not envisaged. The area has been surveyed by Total Station and a

Surface Geological Plan was prepared on the scale of 1: 1000 with lowest contour is 27 m

and highest contour is 28 for an extent of 1.25 Ha. and is enclosed..

The Geological Sections were drawn across the deposit at regular interval on the scale of 1:

1000 scale showing the geology and categorization of reserves, enclosed .



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3.4.4 Reserves

The calculation of reserves of prospect, deposit and mine is done at every stage, right from

preliminary to last stage of exploration and mining.

Any scientific work was not done until now. The reserves assumed and established are only a

rough estimate. However the surrounding quarries that are already working are extending to

proven depths of 20 to 30 m. It is a land surface deposit at ground level within the quarry

lease area (lowest contour is 27 m and highest contour is 28 m). The surface of sheet rock is

wavy and irregular.

A total of 14950 Tons of Napaslab will be excavated during next five years. The reserves are

estimated by the Cross sectional Method. Section wise calculation of Napaslabs reserves is

given in the below table:

One Cross Sections (A-A’) are drawn perpendicular to the slope direction for profile

purpose.

TABLE 3.4: Total Mineable Reserves

Category

Geological

Reserves

(Tons)

Recoverable Market Grade

Blocks @ 80% (Tons)

Waste @ 20%

(Tons)

Proved

Reserves 750250 600200 150050

Mineable Reserves = 600200 = 157.9 years or say 158 years

Proposed annual production 3800

3.5 Method of Mining

Open Cast Mining

There are no public buildings, places of importance and historical monuments, however, the

applicant will conduct the quarry operations duly adopting the restrictions regarding the

safety measures as per the regulations 109 & 127 of Metalliferrous Mines Regulations '1961 '

.

The applicant will adopt the latest mining techniques and machinery such as Wire- Saw

cutting machinery for extracting the Limestone (Minor).

a) Method of Quarrying Operations (Semi Mechanized Open Cast Method)

The Limestone (Minor) in the quarry lease area is exposed on the surface with sheet.

Presently, the quarrying is with semi-mechanized method by using, excavators, tippers,

jackhammers and by using low explosives. Since the quarry is already opened there is no

problem of development of the quarry. The benches are already formed. The bench height is

presently maintained as 3 m. The excavators are capable of excavating to that height.



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Therefore, mining operations are to be carried out in this area in 2 stages.

1) Development

2) Production

Stage -1

The weathered limestone (Minor) will be scraped out so that the underlying fresh mineral will

be exposed for quarrying.

The limestone (Minor) beds exposed will be subjected to drilling and rock breakers from

mother rock.

Rock Splintering:

The loose material will be loosened with drilling the holes with jack hammers aided with

compressor or using rock breakers to separate the mass.

Stage -2

After removal of weathered top layer, the sheet will be subjected is splinter into 300 mm

sized and transported to the crusher units crushing to the sizes of mm sized chips and < 100

mesh power.

Drilling

The Primary drilling and also secondary drilling is done with jackhammers and compressor

the compressor attached has 450 cfm capacity Tippers are 20 Tons capacity.

Blasting:

Broad parameters of blasting:

H = Height of bench = 3 m

L = Length of drill hole = 3.1 m

B = Burden = 1.0 m

S =Spacing= 1.5 m

D = Diameter of the blast hole = 32 mm

Volume of broken Rock= B * S * L = 1.0 * 1.5 * 3 = 4.5 m3

Volume of rock generated from one hole= 4.5 x 3 t/Cu. m = 13.5 Tons

Explosive used

The proponent is utilizing the services of a Form-22 holder from whom the low explosive

like Gunpowder and other accessories are taken. The blasting is also perfonned by a qualified

and statutory person.



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Storage of Explosive

The client does not need any explosive magazine as he is utilizing services.

Fragmentation the Mass:

For fragmentation of the mass from mother rock, the line drilling and breaking method are in

use.

Mining Methodology Blasting, Crushing etc

The mining is carried out in semi mechanized manner. The area proposed for excavation is

drilled with jackhammers to depths of 3.1 m including sub-grade, to obtain 3 m bench height.

For the given production 3 jackhammers attached with 450 cfin capacity compressor are

used. The blasting is done with the help of low explosives safety fuse. The proponent obtains

the explosives from an authorized Form-22 holder. The licensed holder has also service of

qualified blaster who works along with the mining mate of the quarry

3.5.2 Mining program for next five years

The scheme of development and production for the next five years has been planned taking

into consideration the nature of the despite within the lease area. The proposed year wise

working area is demarcated on plan and section and it is enclosed.

TABLE 3.5: Scheme of Five Years Production Details for 1.25 Ha.

Year Recovery @ 80%

(Tons)

Waste @ 20%

(Tons)

1st

(2016 – 17) 3800 950

2nd

(2017 – 18) 3800 950

3rd

(2018 – 19) 3800 950

4th

(2019 – 20) 3800 950

5th

(2020 – 21) 3800 950

Total 19000 4750

Average 3800 950

3.6 Raw Material Required Along With Estimated Quantity, Likely Source, Marketing

Area of

Final Product/S, Mode of Transport of Raw Material and Finished Product

No raw material will be required in the proposed project. The operation involves the

extraction of Napaslabs in its existing form and it will be transported to the Local market

through Lorry’s. The existing roads will be utilized for the transport of Napaslabs from

mine site to market.



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3.6.1 Use of Mineral

Napaslabs is used for construction. The Napaslabs has got good demand in the domestic and

international market. The Napaslabs is being marketed since 5 years and can expect good

market demand will continue for years to come with improved technology. The Napa slabs is

being marketed since 5 years and can expect good market demand will continue for years to

come with improved technology.

3.7 Resource Optimization/ Recycling and Reuse

Not envisaged.

3.8 Availability of Water Its Source, Energy/ Power Requirement and Source

3.8.1 Water Requirement

Water is required only for drinking purposes and dust suppression. The number of working

people is around 21. So the total water requirement will be around 2.5 KLD. Source of water

is tankers and bore wells.

3.8.2 Power

Estimated Power: 120KVA

Source: D.G. set of 120KVA

Fuel consumption: 300LPD

3.9 Quantity of wastes to be generated (liquid and solid) and scheme for their

management/ disposal

3.9.1 Solid Waste Generation& its Disposal

During mining in next 5 years a total of 4750 Tons of waste will be generated and dumped at

the temporary dumping yard, on an average of 950 Tons per annum.

3.9.2 Liquid Effluent

No liquid effluent will be generated at the mine site.

4. SITE ANALYSIS

4.1. Nearest Railway Station

Nadikudu Railway Station is 21.5 km due SE from Q.L applied area

4.2 Nearest Airport

Vijayawada (Gannavaram) Airport is 136.34 km due ESE from Q.L applied area.

4.3 Nearest Seaport

Kakinada Seaport is about 294.50 km due E from Q.L applied area.

4.4 Landform, Land Use and Land ownership

The mining lease is located in Government land. The working project portion is devoid of

any vegetation.



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4.5 Climatic Conditions

The peak summer will be in the month of May-June, highest temperature of 47.2oC is

recorded in the area and the lowest temperature 10oC is recorded in the month of December.

Annual total rainfall is 658.2 mm and highest rainfall in 24 hrs is 227 mm during the month

of September. Annual mean wind speed id 6.1 km/hr. (IMD station, Rentachintala)

5. PLANNING BRIEF

5.1 Planning Concept

It is proposed to produce total of 2990 Tons per Annum of Napaslabs from the proposed

mining lease. The quarry is a running quarry with depth of 1 m. The adjoining mines are

working mines of Napaslabs.

5.2 Population projection

The project will employ mostly workers from nearby villages. About 21 persons will be

employed as workers for this proposed mine. There will not be any increase in population due

to the project.

5.3 Land use planning

The project is located in 1.25 Ha. of Government land. There will be change in land use as

the Napaslabs will be excavated. An extent of about 7798.73 Sq. m area will be sliced down

during next five years to a depth of 1 m.

5.4 Assessment of Infrastructure Demand (Physical & Social)

On the basis of the preliminary site visit, the infrastructure demand in the villages was

assessed on the basis of need and priority. The assessment will be made in the socio

economic survey and will be submitted at the time of final presentation regarding EC.

5.5 Amenities/Facilities

First aid box and drinking water facility will be available at the site. Rest shelter will be

provided at the site. It is proposed to provide the site services like mines office and other

statutory constructions like rest shelter, first aid, work shed and drinking water as required

near the quarry lease. Drinking water will be supplied to the workers from the bore well

opened in the adjacent quarry site & agricultural fields.

6. PROPOSED INFRASTRUCTURE

6.1 Residential Area (Non Processing Area)

As the local persons will be given employment, no residential area/ housing is proposed

within the mining lease area.

6.2 Green Belt

It is proposed to plant 50 trees in five years by planting 10 trees per Annum. Five trees will

be planted within in the village or haulage road area and five trees in the buffer zone. Trees of

mango, neem and peepal would be planted.



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6.3 Water Management

The total water requirement is 2.5 KLD. There are no chances for changes in quality of

surface water or ground water the quarry operations will be carried out on slopes of the rocky

terrain. Hence neither the ground water table nor the general surface drainage pattern is

affected. No water will be discharged from the quarry.

6.4 Sewerage System

Arrangements for disposal in to soak pit outside the river bank will be made.

6.5 Industrial Waste Management

Not applicable.

6.6 Solid Waste management

During mining in next 5 years a total of 950 Cu. m/ 4750 Tons of waste will be generated

and dumped at the temporary dumping yard, on an average of 950 Tons per annum.

The waste rock generated will be temporarily dumped in the South east block of the quarry

lease area covering an area of 529 m2

with an average height of 3 m with 45o slope angle. A

retaining wall will be constructed around the dump for preventing the slanting of waste rock.

7. REHABILITATION AND RESETTLEMENT (R&R) PLAN

An extent of about 7798.73 Sq. m area will be sliced down during next five years to a depth

of 1 m. The proposal for reclamation of land affected by mining activity will be done at the

end of mining lease. No reclamation is proposed in the first five years period because, the

mining will be continued to further depths and reclamation will be possible only after

completion of mining up to the proposed depths.

Reclamation and rehabilitation of the lands affected by mining will be done by back filling,

soil amelioration and afforestation. This will be taken up on need basis before the conclusion

of mining operations. Reclamation of the affected land includes back filling, drainage

development, spreading and fertilization of soil, leveling and re-vegetation etc. Care will be

taken to implement the said factors.

8. PROJECT SCHEDULE & COST ESTIMATES

Sri K. Vamsi Krishna have allocated budget of 2.35 Lakhs (Capital Cost) and 2.02 Lakhs

(Recurring Cost) for the environmental protection measures. The total project cost is 20

Lakhs.

9. ANALYSIS OF PROPOSAL (FINAL RECOMMENDATIONS)

9.1 Financial and Social Benefits with Special Emphasis on the Benefit to the Local

People Including Tribal Population, If Any, In the Area.

The project involves collection of Napaslabs. Although Napaslabs is a minor mineral, it is a

major contributor in foreign exchange earnings.

This project will also provide employment to local people helping them earn

livelihood.

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