Public Works Department-PWD has published Tender For Maintenance Of Curti Water Treatment Plant. Urgent Repair Of Filter Bed Regarding Draining Out Of Sand Through Filter Outlet Of Filter No. 5 Of 55 Mld Water Treatment Plant At Curti.. Submission Date for this Tender is 09-10-2023. Water Treatment Plant Tenders in South Goa Goa. Bidders can get complete Tender details and download the document.
| Sr No | CorrigendumDate | Corrignedum | CorrigendumType | NewSubmissionDate |
| 1 | 25-Sep-2023 | Bid Auto Extn Corrigendum | Bid Auto Extn Corrigendum | 09-10-2023 |
| Sl. No. | Item Description |
| 1 | Removal of existing filter media (sand, grit, gravels) from filter bed of 72MLD W.T.P. Curti and displacement of the same at a distance of 50 mtrs from site and stacking it in properly as directed by office in charge. |
| 2 | Supplying at store or site of work Rigid PVC (SEL FIT) pipes for public water supply including Railway freight, carting, loading and unloading, stacking, transit insurance etc. complete, Conforming to IS: 4985-2000, and bearing ISI mark, Class 10 kg/cm2. |
| 3 | a) 110mm dia |
| 4 | Replacing of 4"" dia PVC pipe of filter bed after fixing end caps and making required holes to pipe (as per existing design) with required tools & tackles after properly breaking of concrete block, cutting and removal of cracked pipe. |
| 5 | Supplying of Filtersand of size conforming to the IS specification with latest amendments suitable for Rapid gravity sand filter media (sand) conforming to the IS specification with latest amendments suitable for Rapid gravity sand filter for treating water in treatment plants with following specification as perthe sizes as given below;- |
| 6 | a) Effective size- 4.50mm to 0.70mm |
| 7 | b) Uniformity Co-Efficient- 1.30 to1.70 |
| 8 | c) Specific gravity - 2.55 |
| 9 | d) Silica content more than- 90% |
| 10 | e) Acid Solubility less than - 5% |
| 11 | f) Loss on ignition less than- 1.5% |
| 12 | Topping/Addition of the filter sand media grid, gravel, pebbles in filter bed of 72MLD W.T.P. as per requirement of filter bed. |
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