PROPOSED FORMATION OF COMPOSITE …environmentclearance.nic.in/writereaddata/FormB/TOR/PFR/10_Dec...Proposed Formation of Composite Housing Scheme by KHB at Rayasandra in ... PROPOSED

Proposed Formation of Composite Housing Scheme by KHB at Rayasandra in Kanakapura Taluk, Ramanagar District, Karnataka.

2015

M/s. Ramky Enviro Engineers Ltd 1

PROJECT REPORT On

PROPOSED FORMATION OF COMPOSITE HOUSING SCHEME BY

KARNATAKA HOUSING BOARD

At

Rayasandra in Kanakapura Taluk, Ramanagara District, Karnataka

DEVELOPED BY:

M/s Karnataka Housing Board, 3rd & 4th Floor, Cauvery Bhavan,

K. G. Road, Bangalore – 560 009


2015


PROJECT REPORT 1.0 GENERAL INFORMATION Karnataka Housing Board was established by legislation in 1962 as a farsighted move to satisfy the increasing housing needs of the people. Over the decades, KHB has provided housing to 1.10 lakh families. It is the only housing agency, which has completed 950 schemes spread over the entire state. The board has taken up diverse roles to provide housing to different segments. Unlike privately developed housing layouts, KHB townships and layouts meet standard norms of town planning and land usage. KHB would bring more transparency in its operations. Hence it has opened up new wings like customer relation cell, property management and project management units to cater to the needs of the customer. It would like to ensure that all the townships maintain quality of highest standards. All townships will be self contained with all urban and civic amenities, and will include rain water harvesting, water recycling, tertiary treatment, developed open spaces and parks, and infrastructure for health, education and recreation. 2.0 PROJECT LOCATION The proposed “Housing Scheme by KHB,” is planned to be developed at Rayasandra in Kanakapura Taluk, Ramanagara District, Karnataka

Table 1 Details of Project

S. No Particulars Details 1 Developers Assistant Executive Engineer

M/s Karnataka Housing Board, 3rd & 4th Floor, Cauvery Bhavan, K. G. Road, Bangalore – 560 009

2 Objective of the Project Composite Housing Scheme 3 Description of the Project The proposed “Housing Scheme by KHB,” is

planned to be developed in a Total Area of 151 A 15 G after deducting ‘B’ Kharab land – 4 A 01 G, Land left for NH 209 – 1 A 8.8 G Net Area for LU – 146 A 5.2 G ( 59.13 Ha) No of plots 2592


2015


4 Location of the Site The proposed project is located at Rayasandra in Kanakapura Taluk, Ramanagara District, Karnataka

5 Total Project cost Proposed Investment

Rs. in Crores

Total 306.58 Crores 2.1 CONNECTIVITY: The project is located at a distance of 20km (NNW) from Ramanagara city. The Ramanagaram Railway Station is located at a distance of 21.24 km (NNW) from the project site. The project site is adjacent to the Kanakapura to Bangalore road. 3.0 PROJECT FEATURES: 3.1 Design details Proposed Composite Housing project scheme will have Residential Plots and Group Housing. Karnataka Housing Board has acquired the land required for the project. The figure showing the 2Km, 5Km and 10Km radius map of the project study area is given as Figure 1, Figure 2 & Figure 3 respectively. The Google maps demarcating the proposed layout, project layout map of are given as Figure 4 & Figure 5. The photographs of the site are shown in Figure 6 respectively.

Proposed Formation of Composite Housing Scheme by KHB at Rayasandra in Kanakapura Taluk, Ramanagar District, Karnataka. 2015


Figure 1 Base map of the study area (2 Km Radius)









Figure 4 Google map demarcating the proposed project location



Figure 5 Project Layout Map

Proposed Formation of Composite Housing Scheme by KHB at Rayasandra in Kanakapura Taluk, Ramanagara District, Karnataka.

2015


Figure 6

Photographs of the Proposed Project site


2015


Table 2 Area Statement

Land use Analysis S. No Description Sq.m Acres %

1 Residential 306207.00 75.66 51.78 2 Commercial 15188.90 3.75 2.57 3 Civil Amenities 31707.50 7.83 5.36 4 Roads 156227.76 38.60 26.42 5 Parks & Open Spaces 82035.90 20.27 13.87

Total 591367.06 146.12 100

Table 3 Plot Details

S. No Category Plot size (M) Total No. of Plots Population

1 EWS 6X9 427 2135 2 LIG 9X12 1154 5770 3 MIG 9X15 682 3410 4 HIG 12X18 329 1645

Total 2592 12960 No of persons per plot / family considered @ 5 3.2 Power Requirement Details 3.1.0 Power Requirement and Source: Total power required will be sourced from BESCOM (KPTCL). The detailed power required is given in Table 4.


2015


Table 4 Power Requirement

Category Total Plots

Power consumption

per plot (kVA)

Total Power consumption

(kVA)

Total Power consumption

kW(0.8)

Total Power consumption MW

(0.001)

EWS 427 3 1281 1025 1.0 LIG 1154 3 3462 2770 2.8 MIG 682 4 2728 2182 2.2 HIG 329 5 1645 1316 1.3

2592 9116 7293 7.3 Source : BESCOM (KPTCL) 4.0 Water Requirement Details 4.1.0 Water Source: During construction Phase water required will be met from bore wells whereas during operational phase water required will be taken from Bore wells and / or Karnataka Urban Water Supply and Drainage Board (KUWSDB) (Permission yet to be taken).

https://www.tenderwizard.com/ROOTAPP/KUWSDB.jsp?company=KUWSDB


2015


4.1.1 Water Requirement:

Table 5 Water Demand

Category No. of Plots

Persons per plot

Total population

Per Capita Consumption

(LPD)

Consumption (KLD)

Total Water Consumption

(KLD)

Waste Water (KLD)

Fresh Treated Fresh Treated

EWS 427 5 2135 90 45 192 96 288 259 LIG 1154 5 5770 90 45 519 260 779 701 MIG 682 5 3410 90 45 307 153 460 414 HIG 329 5 1645 90 45 148 74 222 200 Commercial

15188.9 Sq.m

1518 30 15 46 23 69 62

Total

14478

1212 606 1818 1636 Parks & open Spaces

8 Ha

25

200 200

Total 1212 2018 Note: Commercial 1 person per 10 Sq.m Green belt 25 KLD/Ha; STP's: 1.5MLD


2015


Water Balance:

• Note: All values are in KLD 4.2 Total No of Bore wells required to meet the above demand: For meeting the water requirement 11 Bore wells are provided. Ramanagara Town and its neighboring colonies and villages gets water supply from (KUWSDB) (Permission yet to be taken). The same city supply can be extended to the layout.

Total Water Requirement 2018

Fresh Water 1212

Treated Water 806

Residential 1166

Commercial 46

Flushing 606

Green Belt 200

1050 41 545

STP 1636

Treated Water 1554

806

Sewer 748

https://www.tenderwizard.com/ROOTAPP/KUWSDB.jsp?company=KUWSDB


2015


4.0 Wastewater Management The wastewater characteristics before and after treatment are given in the Table 6. The treated water will be used for flushing and greenbelt; excess will be discharged in sewer or in recharge pit.

Table 6 Wastewater Characteristics

Parameter Influent Treated water Expected average BOD 250 to 300 mg/l <20 mg/l Expected average COD 400-650 mg/l <250 mg/l Total suspended solids 250 to 300 mg/l <20 mg/l

Oil & Grease 10-25 mg/l <5 mg/l a) Prediction of Impacts on Water Environment Impacts on water environment in the project impact zone would be classified into 2 groups viz. the surface water impacts and groundwater impacts. The water required will be met from groundwater sources (bore wells) or from KUWSDB (Permission yet to be taken) and entire wastewater will be treated and partly used for flushing and greenbelt, the remaining is discharged into sewer or recharge pit, hence the impacts on near by surface water will not be envisaged. Groundwater in the project area is available at a depth of 20m below ground level during post monsoon season and 30m below the ground level during pre monsoon season. The major water requirement will be meet from the bore wells however as the treated water is reused for Flushing, Landscaping, Car washing purpose, Common area washing. Hence the impacts on the ground water are not envisaged. b) Storm Water Management Based on the rainfall intensity of the plant area, storm water drainage system will be designed. Storm water drainage system consists of well-designed network of open surface drains and rainwater harvesting pits at regular intervals along the drains so that all the storm water is efficiently drained off without any water logging.


2015


5.1 STP Design The design of a sewage treatment work will be dependent on the quality and quantity of the waste to be treated. The following are some of the important characteristics of domestic sewage: Organic Matter Organic matter is the most important polluting constituent of sewage in respect of its effects on receiving water bodies. It is mainly composed of proteins, carbohydrates and fats. Organic matter is commonly measured in terms of BOD and COD. If untreated sewage is discharged into natural water bodies, biological stabilization of organic matter leads to depletion of oxygen in water bodies. Nitrogen & Phosphorus: Nitrogen and phosphorus are also very important polluting constituents of sewage because of their role in algal growth and eutrophication of water bodies. Nitrogen is present in fresh domestic sewage in the form of proteinaceous matter urea (i.e. organic nitrogen). Its decomposition by bacteria readily changes it into ammonia. In aerobic environments ammonia nitrogen is oxidized into nitrites and nitrates. Nitrates can be used by algae to form plant proteins. Nitrogen is commonly measured as TKN (organic + ammonical) as sewage characteristics. Nitrate and nitrite forms of nitrogen are also measured when quality of receiving/affected water (streams, underground water) is monitored.

Phosphorus is usually present in orthophosphate, polyphosphate and organic phosphate forms. Organically bound phosphorus is of little importance in domestic sewage whereas polyphosphate forms undergo hydrolysis to revert into the orthophosphate forms, although this conversion is quite slow.

Suspended Solids: Suspended solids represent that fraction of total solids in any wastewater that can be settled gravitationally. Suspended solids can further be classified into organic (volatile) and inorganic (fixed) fractions. Organic matter is present in the form of either settleable form or non-settleable (dissolved or colloidal) form. If the organic fraction of suspended solids present in sewage is discharged untreated into streams, it leads to sludge deposits and subsequently to anaerobic conditions.


2015


Dissolved Oxygen: Dissolved oxygen, as such, does not have any significance as a sewage characteristic. However, it is the most important pollution assessment parameter of the receiving water bodies. Stabilization of organic matter, when discharged untreated or partially treated in receiving waters, leads to depletion of their dissolved oxygen. Nutrients (nitrogen and phosphorus) addition due to discharge of untreated or treated sewage may lead to algal growth in streams. During day time, algae undergo photosynthesis process and the oxygen released by this process is much more than their respiration requirements resulting in a net addition of dissolved oxygen to water. However, during night time photosynthesis process is stopped whereas respiration requirement continues. This leads to depletion of dissolved oxygen in waters. Thus, it is observed that all the polluting constituents of sewage explained above have their direct or indirect effect on dissolved oxygen of receiving waters. Bacterial Parameter (Fecal Coli form): Although organic matter, in dissolved as well as suspended form, is the most important parameter of sewage as far as ecology of receiving water bodies is concerned, Bacterial parameters, such as Fecal Coli form (FC), which serve as indicators of fecal pollution are also very important when human health is the prime concern. Sewage is discharged either into a water body, which is used for various purposes such as source of drinking water supply and bathing or discharged on land for irrigation, where human beings come in contact with it. Population consuming water from such sources which receive sewage discharges and persons involved in agricultural activities where sewage is applied become vulnerable to infection from pathogenic organisms (mainly bacteria and viruses) which are discharged by human beings who are infected with disease or who are carriers of a particular disease. Thus, to check quality of receiving waters for various uses and to assess acceptability of degree of treatment given to sewage, assessment of bacterial quality also becomes important. Because specific identification of pathogenic bacteria is extremely difficult, the coli form group of organisms is used as an indicator of the presence in wastewater of pathogenic organisms. Coli form bacteria are found in intestinal tract of human beings. Each person discharges about 100 to 400 billion coli form bacteria per day. Presence of coli form organisms is taken as an indication of presence of pathogenic organisms and absence of coli form organism is taken as an indication that water is free from disease producing organisms.

A detailed study on the sewage from various sources of study area is to be carried out and hence average characteristics of raw sewage can be obtained to design the treatment system.


2015


5.2 Rain Water Harvesting System Project Management will properly utilize the rainwater by adopting appropriate rain water-harvesting mechanism. Rainwater harvesting is done by the construction of harvesting pits all along the storm water drainage network at a definite pitch. Necessary expert advice will be obtained in this regard. Artificial recharge measures like rain water-harvesting helps in reducing the urban run-off, decrease pollution of ground water and improve the ground water table, which augments the yields of, bore wells.

The rain water collected over the storm water drains will be diverted to rain water harvesting pit.

6.0 Solid Waste Management The solid waste generated during construction phase will be segregated into domestic waste and rubble / construction waste. The domestic waste will be daily disposed off to the municipal bins / dump area, while construction waste will be sold to the contractors for low lying areas land filling while recyclable material will be sold to registered recyclers.

As the proposed project is a construction project, the nature of solid waste will be in from dry and processed food packets, raw vegetable waste, food remain ants, twigs, dry leaves, flowers, office stationery in origin, which includes paper, cardboard, packets, files, plastic bags, files, e-waste in form of computers, etc. Apart from this, solid waste from canteen and litter from the green belt are the main constituents of the solid waste. They contain peels, empty nuts, water bottles, cans, etc. All the bio-degradable waste will be segregated and disposed off scientifically. Re-cycle able waste will be sold to authorized recyclers. The e-waste will be given to authorized dealers.

The STP Sludge from the Sewage Treatment Plant would be transferred to filter press and sludge digester. This sludge is used as manure with in the premises. The details of the solid waste generated from the proposed project are given in Table 7


2015


Table 7 Solid Waste Details

S. No. Details Population Solid waste Generation (Kg/ capita/day)

Total Solid waste (Kg/day)

1 Domestic Solid Waste (Residential) 12960 0.6 7776

2 Commercial 1518 0.2 304 Total 8080

Hazardous Waste DG set Oil Sludge 25 lts/annum

30 lts /annum Given to recyclers

STP Sludge 133 kg/day Used as manure for greenbelt development

Sludge Generation Sludge generation = Q X BODIN – BODOUT ______________________________ X 0.3 Kgs/day 1000 = 1636 X 300 – 30 X 0.3 1000 = 133 Kgs/day

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PROPOSED FORMATION OF COMPOSITE …environmentclearance.nic.in/writereaddata/FormB/TOR/PFR/10_Dec...Proposed Formation of Composite Housing Scheme by KHB at Rayasandra in ... PROPOSED