Work contract for pre and post monitoring e.g. air, water, soil, and flora and fauna etc at around abandoned mine various samples monitoring during disposal of fly/ pond ash in low lying area/ mines at ATPS, Chachai

Amount

Schedule-I: Proposed monitoring programme during disposal of Fly Ash in Abandoned mine.

i. Trench - T3, ii. Trench ABCD and iii. Remaining part of Baiga Mine (OCM) Sohagpur area Dhanpuri

Ash Samples Chemical Parameters (%):- SiO2, Al2O3, Fe3O3, K2O, TiO2, CaO, MgO, Na2O, P2O5, SO3 Trace Elements (mg/kg unit using TCLP Test):- As, Ba, Cd, Co, Cr, Cu, F, Fe, Hg, Mn, Ni, Pb, Zn Radio Activity (Bq/kg):- 238U, 236Ra, 232Th, 228Ra, 230Pb, 40K, 137Cs

Ash Leachate Analysis Trace elements (mg.kg, using TCLP Test):- As, Ba, Cd, Co, Cr, Cu, F, Fe, Hg, Mn, Ni, Pb, Zn

Piezometer water samples Chemical Parameters (mg/l, except pH and EC):- pH, EC, TDS, total Alkalinity, Ca, Mg, Na, K, Cl, SO4, NO3, PO4, Trace elements (Mg/l) As, Ba, Cd, Co, Cr, Cu, F, Fe, Hg, Mn, Ni, Pb, Zn.

Mine Water Sample Chemical Parameters (mg/l, except, pH and EC):pH, EC, TDS, Total Alkalinity, Ca, Mg, Na, K, Cl, SO4, NO3, PO4. Trace elements (mg/l): As, Ba, Cd, Co, Cr, Cu, F, Fe, Hg, Mn, Ni, pb, Zn

Ground Water Same as above & Base line data generation of ground water

Surface water Samples Same as above & Base line data generation of surface water

Soil Samples Texture, type, pH and cation exchange capacity. Trace elements (mg/l):- As, Ba, Cd, Co, Cr, Cu, F, Fe, Hg, Mn, Ni, Pb, Zn Base line data generation of surface water

Survey of Flora and Fauna Listing of flora (herbs, shrubs and trees) and Fauna (Soil invertebrates and other animals) based on field observations and review of information available. Analysis of trace elements in plants (herbs, shrubs and trees) the invertebrates.

Survey of Flora and Fauna Bioaccumulation and Bio-Magnification tests (especially on tree leaves, vegetation, crop yields and cattle population.)

Schedule-II : Proposed monitoring programme during disposal of Fly Ash in mine void.

i. Trench - T3, ii. Trench -ABCD and iii. Remaining part of Baiga Mine (OCM) Sohagpur area Dhanpuri

Ambient Air Quality Monitoring, As per NAAQS

Schedule-III: Proposed monitoring programmed after Reclamation of mine void. (Additional Sampling shall be done on request of SECL as and when required)

i. Trench - T3, ii. Trench -ABCD and Remaining part of Baiga Mine (OCM) Sohagpur area Dhanpu

Piezometer water samples Chemical Parameters (mg/l, except pH and EC):- pH, EC, TDS, total Alkalinity, Ca, Mg, Na, K, Cl, SO4, NO3, PO4, Trace elements (Mg/l) As, Ba, Cd, Co, Cr, Cu, F, Fe, Hg, Mn, Ni, Pb, Zn.

Ground Water Samples Same as above

Surface water Samples Same as above

Survey of Flora and Fauna Listing of flora (herbs, shrubs and trees) and Fauna (Soil invertebrates and other animals) based on field observations and review of information available. Analysis of trace elements in plants (herbs, shrubs and trees) the invertebrates.

Survey of Flora and Fauna Bioaccumulation and Bio Magnification tests (especially on tree leaves, vegetation, crop yields and cattle population.)

Study of enrichment of heavy metals and radio active material in the ground water Same as above

Schedule-IV: Other Studies Schedule.

Techno-economic feasibility study for disposal of ash into the quarry

Risk Analysis and preparation of safety management plan including control machines as per guideline contained in DGMS (Tech) (S&T) circular no. 13 of 2002 dated 31.12.2002

Geotechnical study of the mine void area

Feasibility of transportation of ash to mine void

Construction of 02 piezometer with 01 no. level indicator of each location. (01 upstream and 01 downstream)

Bioaccumulation and bio magnification test after ash filling

VARDAN ENVIROLAB LLP (BID ID -1241436)