Environmental Impact Assessment of (2 x 363.3 MW) +15% Gas Based Combined Cycle Power Plant (Expansion): Palatana, Gomti District, Tripura 21*&7ULSXUD3RZHU &RPSDQ\/WG 273& )LQDO(,$5HSRUW±9ROXPH 0DLQ5HSRUW February 2019 (,$&RQVXOWDQW(50,QGLD3ULYDWH/LPLWHG*XUJDRQ±1$%(7$FFUHGLWHGDVSHU &HUWLILFDWH1R1$%(7(,$5$GDWHG-XQ ZZZHUPFRP The business of sustainability FINAL REPORT ONGC Tripura Power Company Ltd (OTPC) Environmental Impact Assessment of (2 x 363.3 MW) +15% Gas BasedCombined Cycle Power Plant (Expansion): Palatana, Gomti District, Tripura Environmental Consultant: ERM India Private Limites, Gurgaon; NABET Accredited as per certificate No.: NABET/EIA/1619/ RA 0055; Valid till 31 October 2019 February 2019 Reference # 0397129 Version/ Description Coordinated Reviewed by Approved Revision by by 01 Final EIA Salil Das Debanjan Neena Report Bandyapadhyay; Singh : Partner Managing Director This report has been prepared by ERM India Private Limited a member of Environmental Resources Management Group of companies, with all reasonable skill, care and diligence within the terms of the Contract with the client, incorporating our General Terms and Conditions of Business and taking account of the resources devoted to it by agreement with the client. We disclaim any responsibility to the client and others in respect of any matters outside the scope of the above. This report is confidential to the client and we accept no responsibility of whatsoever nature to third parties to whom this report, or any part thereof, is made known. Any such party relies on the report at their own risk. COMPLIANCE OF APPROVED TERMS OF REFERENCE (TOR) FOR THE EIA STUDY The terms of reference (ToR) for conduct of EIA study as approved by EAC of MoEFCC has been provided at Annex A. The ToR requirements and their compliance and reference in the EIA study have been described in Table-1. Table 1 Requirements & Compliance of Approved Terms of Reference for the EIA Ref. ToR Points Compliance No. i. The proposed project shall be given a unique The name of the project is “726 MW name in consonance with the name submitted +15% OTPC Palatana Expansion to other Government Departments etc. for its Project”. better identification and reference. ii. Vision document specifying prospective long OTPC Vision Document is attached in term plan of the project shall be formulated Annex-1.1. and submitted iii. Latest compliance report duly certified by the The latest compliance report certified Regional Office of MoEF& CC for the by RO of MoEFCC is attached in conditions stipulated in the environmental Annex 2.7 and CRZ clearances of the previous phase(s) for the expansion projects shall be submitted. iv. The project proponent needs to identify The proposed expansion will be minimum three potential sites based on undertaken within the existing power environmental, ecological and economic plant area. No additional land will be considerations, and choose one appropriate required for the expansion project. The site having minimum impacts on ecology and alternative study has been carried out environment. A detailed comparison of the in respect of greenfield site vis-à-vis sites in this regard shall be submitted brownfield site as well as environmental and technological alternatives .(Refer: Chapter 5) v. Executive summary of the project indicating Executive summary of the EIA report relevant details along with recent is provided at the beginning of the photographs of the proposed site (s) shall be report. The photographs of the provided. proposed site are provided in Section 2.5. Response to the issues raised during Public Hearing and the written representations (if The Public Hearing (PH) was any), along with a time bound Action Plan and budgetary allocations to address the conducted on 04.10.2018 by TSPCB; same, shall be provided in a tabular form, the PH issues and action plan is against each action proposed provided in Section 7.2.3. vi. Harnessing solar power within the premises 5 Nos. of solar street lights and 35 of the plant particularly at available roof tops Nos. of solar garden lights have been and other available areas shall be formulated installed and installation of more and for expansion projects, status of street lights is being taken up. OTPC implementation shall also be submitted has also undertaken the Pre- Feasibility study for setting up of solar rooftop PV Power Plants through Solar Energy Corporation of India, Government of India Enterprise (Refer Section 2.8.4). ERM OTPC, PALATANA EXPANSION PROJECT PROJECT # 0397129 FEBRUARY 2019 1 Ref. ToR Points Compliance No. vii. The geographical coordinates (WGS 84) of the The geographical coordinates of the proposed site (plant boundary), including plant on satellite imagery is provided location of ash pond along with topo sheet in Figure 2.2. (1:50,000 scale) and IRS satellite map of the The site is located in the Survey of area, shall be submitted. India Toposheet No. 79 M/7. The Survey of India Dehradun Office communicated that 1;50,000 scale Topographic Map 79 M/7 is frozen/ not available. The site location has been indicated on topographic map of 1:250,000 scale. Elevation of plant site and ash pond with The existing plant and proposed respect to HFL of water body/nallah/River expansion unit is gas based thermal and high tide level from the sea shall be power plant; therefore, ash pond is not specified, if the site is located in proximity to required. The Gumti River is located them 2.0 km from the site. Plant site elevation is about 30 m and elevation level of Gumti River is about 20 m. Contoru map of study area showing elevation of Gumti River and plant site is presented in fig 4.3 of Eco- Hydrological Study report undertaken by NIT Agartala. Report has been presented in Annex C- viii. Layout plan indicating break-up of plant area, The plant layout map is presented in ash pond, green belt, infrastructure, roads etc. Figure 2.14. The existing facilities, and shall be provided land use map is presented in Figure 2.5 and Figure 2.7 respectively. ix. Land requirement for the project shall be The land use of the existing plant and optimized and in any case not more than what proposed expansion unit is provided has been specified by CEA from time to time. in Section 2.4 and Figure 2.7. Item wise break up of land requirement shall be provided x. Present land use (including land class/kism) The proposed expansion project as per the revenue records and State Govt. would not require any additional land. records of the proposed site shall be The existing land use of the plant is furnished. Information on land to be acquired industrial land; therefore change in including coal transportation system, laying of land use is not envisaged for proposed pipeline, ROW, transmission lines etc. shall be expansion project. Refer - Section 2.4. specifically submitted. Status of land acquisition and litigation, if any, should be provided xi. If the project involves forest land, details of OTPC had received the forest application, including date of application, area clearance for the existing project. No applied for, and application registration additional land or forest land will be number, for diversion under FCA and its required for proposed expansion status should be provided along with copies project. (Refer Section 2.4) of relevant documents ERM OTPC, PALATANA EXPANSION PROJECT PROJECT # 0397129 FEBRUARY 2019 2 Ref. ToR Points Compliance No. xii. The land acquisition and R&R scheme with a OTPC had acquired 3.49 acres of time bound Action Plan should be formulated private land for the existing power and addressed in the EIA report plant and compensation was given to the owners of the land. OTPC also acquired 25.45 acres of private land for pipeline and residential colony for the existing plant and compensation for the same has also been awarded. The proposed expansion project would not require any additional land; therefore R&R issue is not applicable for this project. xiii. Satellite imagery and authenticated topo sheet The environmental setting of the site indicating drainage, cropping pattern, water and surrounding has been mapped bodies (wetland, river system, stream, nallahs, from satellite imagery and same has ponds etc.), location of nearest habitations been presented in Section 2.3 and (villages), creeks, mangroves, rivers, Figure 2.6. reservoirs etc. in the study area shall be provided. xiv. Location of any National Park, Sanctuary, Trishna Wildlife Sanctuary is located Elephant/Tiger Reserve (existing as well as within 10 km of the project site. ESZ proposed), migratory routes / wildlife around 0.5 km from the Sanctuary corridor, if any, within 10 km of the project boundary has also been proposed by site shall be specified and marked on the map State forest department and MoEFCC. duly authenticated by the Chief Wildlife Projetc site does not fall in the ESZ of Warden of the State or an officer authorized by him. Trishna Wildlife Sancturay. The ecological sensitivity map of Trishna Wildlife Sanctuary and Sepahijila Wildlife Sanctuay location w.r.t to project site duly authenticated by PCCF, Wildlife, Govt. of Tripura has been obtained (Refer . Annex-3.5 of Annex A.) xv. Topography of the study area supported by The proposed expansion unit would toposheet on 1:50,000 scale of Survey of India, be constructed within the existing along with a large scale map preferably of plant area. The site is already 1:25,000 scale and the specific information developed. No filling work will be whether the site requires any filling shall be required. provided. In that case, details of filling, The topography map of the study area quantity of required fill material; its source, transportation etc.