4. description of the environment - Gujarat Pollution Control Board

4. description of the environment - Gujarat Pollution Control Board 4. description of the environment - Gujarat Pollution Control Board

03.04.2013 Views

Final Feasibility Report Preparation of Feasibility– cum-Preliminary Design for 4/6 Laning of Jetpur-Somnath section of NH 8D, Package No: NHAI/DBFOII/DPR/02 Monitoring Location & Code Chainage (km) T-Junction 126 + 700 NAAQ Norms* (8/24 hourly Mean) Location Reference At T Junction near Somnath where the road on RHS goes to Somnath and on LHS goes to Bhavnagar* Area Category Residential & Rural VOLUME III: ENVIRONMENTAL IMPACT ASSESSMENT Pollutant Concentration (μg/m3) 24 hourly mean values RSPM TSPM SO2 NO2 HC CO 147.26 274.92 12.24 15.72 Nil 1335 150 500 120 120 The TSPM range is 230.00μg/Nm 3 to 399.00 μg/Nm 3 . The total particulate concentration at 50% of location is less than 288 μg/Nm 3 . The higher concentration of TSPM at some locations is due to higher concentration of RSPM in the ambient. In most of the samples, RSPM is 50% higher than the prescribed standard. All gaseous pollutants viz. SO2, NO2, HC and CO are well within the prescribed limit. 4.5 WATER ENVIRONMENT Surface Water: The project region falls in Rajkot and Junagadh district. Junagadh district is prosperous in water on account of rivers, reservoirs and lakes. The principal rivers of the district falling along the project region are Uben, Ojat, Hiren, Meghal and Raval. The slope of the district is towards south. The rivers that cross the project road are– Uben river at Ch 14/200, Lol river at Ch 29/200, Sonrakh river at Ch 30/800, Kalve river at Ch 35/000, Vali river at Ch 47/000, Ozat river at Ch 48/000, Badodari river at Ch 61/100, Meghal river at Devka River Crossing the Project Road Ch 102/000 and Devka river at Ch 117/000. All the rivers are non perennial, rainfed. The rivers are used for washing and cleaning. The hydrology of the project area is depicted in Figure 4-8. Ground Water: As per the discussion with the officials of Gujarat Pollution Control Board, the talukas falling in the project of both Rajkot and Junagadh districts are in Grey zone (restricted zone). This categorization is attributed to the level of extraction of ground water against increased domestic, industrial and irrigation requirements. The extraction is higher in the region of Saurashtra. In the year 2002, both the districts were categorised as Grey zone and the availability of the ground water along the corridor varied between from 5 to 20 m below ground level (bgl) during pre-monsoon (May 2002), while during post monsoon (November 2002) it has varied from less than 5 to 10 m bgl . Ground water depth mostly depends on aquifer geology, geomorphology and 4-12

Final Feasibility Report Preparation of Feasibility– cum-Preliminary Design for 4/6 Laning of Jetpur-Somnath section of NH 8D, Package No: NHAI/DBFOII/DPR/02 VOLUME III: ENVIRONMENTAL IMPACT ASSESSMENT rainfall. South-West monsoon is the main source of ground water recharge for the entire area of the corridor. Ground water is also a source of irrigation in the area. Drinking water is available through borewell. Table 4-8: Depth to ground water level along the corridor S.No. District Taluka Depth to Water level (mbgl) Pre Monsoon (May 2002) Post Monsoon (November 2002) 1 Rajkot Jetpur Greater than 20 m Greater than 20 m 2 Junagadh Junagadh Greater than 20 m Greater than 20 m 2 Junagadh Vanthali 10 – 20 m 5 – 10 m 3 Junagadh Keshod 10 – 20 m 5 – 10 m 4 Junagadh Mangrol Greater than 20 m 5 – 10 m 5 Junagadh Malia 10 – 20 m 5 – 10 m 6 Junagadh Veraval 5 – 20 m 5 – 10 m Source: Central Ground Water Board Water Quality: The water quality of Uben, Lol, Ozat, Megal and Devka rivers were taken for monitoring the surface water quality. Borewells are the major source of water for drinking and other domestic purposes in villages and towns. Samples from borewells at Sahajanand Swami Gurukul, at the junction near Panidhra Village and Jetpur Industrial Area have been taken for detailed analysis. The monitoring stations have been depicted in Figure 4-7. 4-13

Final Feasibility Report<br />

Preparation <strong>of</strong> Feasibility– cum-Preliminary Design for 4/6 Laning<br />

<strong>of</strong> Jetpur-Somnath section <strong>of</strong> NH 8D, Package No:<br />

NHAI/DBFOII/DPR/02<br />

VOLUME III:<br />

ENVIRONMENTAL IMPACT ASSESSMENT<br />

rainfall. South-West monsoon is <strong>the</strong> main source <strong>of</strong> ground water recharge for <strong>the</strong> entire area <strong>of</strong><br />

<strong>the</strong> corridor. Ground water is also a source <strong>of</strong> irrigation in <strong>the</strong> area. Drinking water is available<br />

through borewell.<br />

Table 4-8: Depth to ground water level along <strong>the</strong> corridor<br />

S.No. District Taluka<br />

Depth to Water level (mbgl)<br />

Pre Monsoon (May 2002) Post Monsoon (November 2002)<br />

1 Rajkot Jetpur Greater than 20 m Greater than 20 m<br />

2 Junagadh Junagadh Greater than 20 m Greater than 20 m<br />

2 Junagadh Vanthali 10 – 20 m 5 – 10 m<br />

3 Junagadh Keshod 10 – 20 m 5 – 10 m<br />

4 Junagadh Mangrol Greater than 20 m 5 – 10 m<br />

5 Junagadh Malia 10 – 20 m 5 – 10 m<br />

6 Junagadh Veraval 5 – 20 m 5 – 10 m<br />

Source: Central Ground Water <strong>Board</strong><br />

Water Quality: The water quality <strong>of</strong> Uben, Lol, Ozat, Megal and Devka rivers were taken for<br />

monitoring <strong>the</strong> surface water quality. Borewells are <strong>the</strong> major source <strong>of</strong> water for drinking and<br />

o<strong>the</strong>r domestic purposes in villages and towns. Samples from borewells at Sahajanand Swami<br />

Gurukul, at <strong>the</strong> junction near Panidhra Village and Jetpur Industrial Area have been taken for<br />

detailed analysis. The monitoring stations have been depicted in Figure 4-7.<br />

4-13

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