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| 1 | CLEANING OF UNDERGROUND TANKS : Cleaning of Under Ground Water Storage / High Level Ground Reservoir (HLGR) tanks / Elevated Surface Reservoir (ESR) twice in a year or as required with pressure water jetting with required pressure using adjustable pressure jet machines, removing all debris, fungus growth inside the tanks & other contamination including cleaning of walls & floors of tanks thoroughly, application of bleaching powder or other chemicals approved by the department at the required dosage, desilting & final cleaning with fresh water & dewatering residual & dirty water & other deposits using dewatering pumps & vacuum pumps including disposing off the removed waste materials from the tanks within a distance of 50 metres on ground at suitable location etc. complete all as per terms and conditions/ scope of work attached & as directed by the Engineer-In-Charge | CLEANING OF UNDERGROUND TANKS : Cleaning of Under Ground Water Storage / High Level Ground Reservoir (HLGR) tanks / Elevated Surface Reservoir (ESR) twice in a year or as required with pressure water jetting with required pressure using adjustable pressure jet machines, removing all debris, fungus growth inside the tanks & other contamination including cleaning of walls & floors of tanks thoroughly, application of bleaching powder or other chemicals approved by the department at the required dosage, desilting & final cleaning with fresh water & dewatering residual & dirty water & other deposits using dewatering pumps & vacuum pumps including disposing off the removed waste materials from the tanks within a distance of 50 metres on ground at suitable location etc. complete all as per terms and conditions/ scope of work attached & as directed by the Engineer-In-Charge |
| 2 | Capacity of tanks up to 3 lakhs litresNOTE: At least 2 tanks upto 3 lakh liters to be cleaned in a day.(32 Tanks x 2 times cleaning/year x 2 years) | Capacity of tanks up to 3 lakhs litresNOTE: At least 2 tanks upto 3 lakh liters to be cleaned in a day.(32 Tanks x 2 times cleaning/year x 2 years) |
| 3 | Capacity of tanks above3 lakhs litres to 5 lakhs litresNOTE: At least 2 tanks above 3 lakhs litres to 5 lakhs litres to be cleaned in a day.(12 Tanks x 2 times cleaning/year x 2 years) | Capacity of tanks above3 lakhs litres to 5 lakhs litresNOTE: At least 2 tanks above 3 lakhs litres to 5 lakhs litres to be cleaned in a day.(12 Tanks x 2 times cleaning/year x 2 years) |
| 4 | Capacity of tanks above 5 lakhs litres to 10 lakhs litresNOTE: At least 1 tank above 5 lakhs litres to 10 lakhs litres to be cleaned in a day.(13 Tanks x 2 times cleaning/year x 2 years) | Capacity of tanks above 5 lakhs litres to 10 lakhs litresNOTE: At least 1 tank above 5 lakhs litres to 10 lakhs litres to be cleaned in a day.(13 Tanks x 2 times cleaning/year x 2 years) |
| 5 | Capacity of tanks above 10 lakhs litresNOTE: At least 1 tank above 10 lakhs litres to be cleaned in a day.(4 Tanks x 2 times cleaning/year x 2 years) | Capacity of tanks above 10 lakhs litresNOTE: At least 1 tank above 10 lakhs litres to be cleaned in a day.(4 Tanks x 2 times cleaning/year x 2 years) |
| 6 | CLEANING OF OVERHEAD TANKS : Cleaning of overhead water storage tanks of following capacities provided over the roof of buildings tanks twice in a year or as required, including scrapping of walls & floors of tanks with coir brushes, removing silt, scaling, dirt, debris & other deleterious materials from the tanks & disposing off the same within a distance of 50 metres on ground, washing with fresh water & bleaching powder (about 50 gms per 1000 litres of water) & finally washing with fresh water as directed including making arrangements for ladder, buckets, rope, dewatering of tanks, plugging the outlets of tanks before cleaning operation & removal of plugs, closing of manhole covers, opening of outlet valves of tanks after cleaning etc. complete all as per terms & conditions & scope of work attached & as directedby the Engineer-In-Charge. | CLEANING OF OVERHEAD TANKS : Cleaning of overhead water storage tanks of following capacities provided over the roof of buildings tanks twice in a year or as required, including scrapping of walls & floors of tanks with coir brushes, removing silt, scaling, dirt, debris & other deleterious materials from the tanks & disposing off the same within a distance of 50 metres on ground, washing with fresh water & bleaching powder (about 50 gms per 1000 litres of water) & finally washing with fresh water as directed including making arrangements for ladder, buckets, rope, dewatering of tanks, plugging the outlets of tanks before cleaning operation & removal of plugs, closing of manhole covers, opening of outlet valves of tanks after cleaning etc. complete all as per terms & conditions & scope of work attached & as directedby the Engineer-In-Charge. |
| 7 | Capacity of tanks upto 3000 litresNOTE: At least 20 tanks of Capacity of tanks upto 3000 litres to be clean in a day.(479 Tanks x 2 times cleaning/year x 2 years) | Capacity of tanks upto 3000 litresNOTE: At least 20 tanks of Capacity of tanks upto 3000 litres to be clean in a day.(479 Tanks x 2 times cleaning/year x 2 years) |
| 8 | Capacity of tanks above 3000 litres upto 5000 litres NOTE: At least 20 tanks to be cleaned in a day.(464 Tanks x 2 times cleaning/year x 2 years) | Capacity of tanks above 3000 litres upto 5000 litres NOTE: At least 20 tanks to be cleaned in a day.(464 Tanks x 2 times cleaning/year x 2 years) |
| 9 | Capacity of tanks above 5000 litres & upto 10000 litres NOTE: At least 15 tanks to be cleaned in a day.(398 Tanks x 2 times cleaning/year x 2 years) | Capacity of tanks above 5000 litres & upto 10000 litres NOTE: At least 15 tanks to be cleaned in a day.(398 Tanks x 2 times cleaning/year x 2 years) |
| 10 | Capacity of tanks above 10000 litresNOTE: At least 10 tanks to be cleaned in a day.(183 Tanks x 2 times cleaning/year x 2 years) | Capacity of tanks above 10000 litresNOTE: At least 10 tanks to be cleaned in a day.(183 Tanks x 2 times cleaning/year x 2 years) |
| 11 | TESTING OF WATER SAMPLES :Testing of water sample for Bacteriological contamination & portability tests / chemical analysis tests including supply of sterilized water sample bottles from the NABL approved lab / Government laboratory or authorized testing agency with sealed packed & use the same for collecting the water samples from various overhead tanks of buildings/ underground sumps of pump houses & HLGRs and make the arrangement of transport to submit the water samples to the NABL laboratory on same day & obtain the necessary test certificates from the Government or other authorized testing agency, submit reports as directed by the Engineer-In-Charge. | TESTING OF WATER SAMPLES :Testing of water sample for Bacteriological contamination & portability tests / chemical analysis tests including supply of sterilized water sample bottles from the NABL approved lab / Government laboratory or authorized testing agency with sealed packed & use the same for collecting the water samples from various overhead tanks of buildings/ underground sumps of pump houses & HLGRs and make the arrangement of transport to submit the water samples to the NABL laboratory on same day & obtain the necessary test certificates from the Government or other authorized testing agency, submit reports as directed by the Engineer-In-Charge. |
| 12 | Bacteriological contamination & portability test analysis | Bacteriological contamination & portability test analysis |
| 13 | Chemical test analysis | Chemical test analysis |
