Septic Tank Estimate Preparation

Estimates Varies as per user requirements, but the basic requirements remain same.

Basic Requirements:

• 1) Number of People for which septic tank is to be constructed: 25
• 2) Septic Tank Wall: 1st class Brickwork in 1:4 Mortar
• 3) Floor/Foundation: 1:3:6 Cement concrete
• 4) Inner Plaster: 12 mm in 1:3 Cement Mortar
• 5) Flooring Plaster: 20 mm in 1:3 Mortar with water proofing compounds
• 6) Upper & Lower portion of soak pit: 2nd class Brickwork in 1:6 Cement mortar
• 7) Middle portion of Soak pit: Dry Brickwork
• 8) Roof Covering slabs & Baffle wall: Precast R.C.C.
• 9) Length of Connecting pipe from Latrine seat: 3 m

Design :-

Capacity of tank @ 0.08 cu.m per user = 25 x 0.08 = 2 cu.m
Taking Depth of water as 1.4 m the floor area of tank = 2/1.4 = 1.428 sq.m
Taking length as 2 times the breadth = L x B = 1.428 sq.m
2B x B = 1.428 sq.m
B = sqrt (1.428/2) = 0.9449 m say 0.9 m
L = 2B = 1.8 m say 2 m
Required Floor Area = 1.428 sq.m
Provided Floor Area = 1.8 sq.m
Required Area < Provided Area, Hence OK
Taking Free Board of 0.3m Hence Total Depth of Tank = 1.4 + 0.3 m = 1.7 m

Drawing

Estimate:-

Estimate For Septic Tank (Soak pit Not Included)

Abstract

Description	Quantity	Unit	Rate	Amount
Earthwork Excavation	...	m³	...	...
P.C.C. 1:3:6	...	m³	...	...
Brickwork 1:4	...	m³	...	...

Sr No.	Quantity	Unit	Description of Item	Rate	Amount (₹)
1.1	11.2	Square Metre	Clearing and grubbing road land including uprooting rank vegetation, grass, bushes, shrubs, saplings and trees girth up to 300mm... (Item No. 2.09)	13.2	147.84
1.2	11.22	Cubic Metre	Excavation for foundation in earth, soil of all types... By Manual Means (Item No. 21.01)	262.9	2949.74
1.3	2.992	Cubic Metre	Excavation for foundation in earth... (Lift from 1.5m to 3.0m) By Manual Means (Item No. 21.03)	345.4	1033.43
1.4	1.12	Cubic Metre	Providing and laying Cast in situ/Ready Mix cement concrete in M-10... (Item No. 24.01)	6812.7	7630.23
1.5	2.712	Cubic Metre	Providing first class Burnt Brick masonry... in pillars of rectangular or square shape... (Item No. 27.08)	10817.15	29336.11
1.6	0.356	Cubic Metre	Providing and laying in situ/ready mix controlled grade of M15... (Item No. 12.55)	8620.05	3068.74
1.7	0.032	Metric Tonne	Providing, cutting, bending, hooking, tying and laying in position TMT FE 500 steel bars... (Item No. 14.01)	97340.1	3114.89
1.8	17.49	Square Metre	Providing sand faced plaster externally in cement mortar... (Item No. 32.11)	713.65	12481.74
1.9	10	Running Metre	Providing and laying for 150mm dia salt glazed stoneware pipe including fittings... (Item No. 42.04)	454.65	4546.5
1.10	1	Number	Providing and fixing 8cm C.I. Nahani Trap including C.I. grating... (Item No. 41.79)	895.55	895.55
1.11	2	Running Metre	Providing and fixing on walls/ceiling/floor 15mm dia. CPVC pipe... (Item No. 42.55)	292.6	585.2
1.12	1	Number	Providing and fixing in position UPVC ultra violet stabilized 110mm outer diameter cowl dome... (Item No. 43.25)	185.9	185.9
Total Amount					65975.87

Measurements

Sr No.	Item No.	Category	Description					Unit
1.1	2.09	Road Sub grade	Clearing and grubbing road land including uprooting vegetation, trees up to 300mm...					Sq.M.
	Description of Measurement		No.	Length	Width	Height	Quantity
	Main Area			3.40+0.6	2.20+0.6		11.20
Net Quantity:							11.20	Sq.M.
1.2	21.01	Excavation	Excavation for foundation in earth, soil, etc. (Lift 0.00 to 1.50m)					Cu.M.
	HEIGHT = TANK H + SLABS		1	2.80+0.6	1.60+0.6	0.20+1.70	14.212
	RESTRICTION DEDUCTION		-1	3.4	2.2	0.4	-2.992
Net Quantity:							11.22	Cu.M.
1.5	27.08	Brick Masonry	First class Burnt Brick masonry in CM 1:4...					Cu.M.
	Long Walls (Step 1)		2	2.60	0.30	0.60	0.936
	Long Walls (Step 2)		2	2.40	0.20	1.10	1.056
Net Quantity:							2.712	Cu.M.

Rate Analysis

Sr.	Item No	Description of Item / Component	Rate / Lead	Unit
1.4	24.01	Providing and laying M-10 Cement Concrete for foundation including PLC SCADA mixer, etc.	5830.00	Cu.M.
		10% Hilly Area Charges	583.00
		20mm Metal Lead Charges (0.24 x 263.19)	63.17
		Cement Lead Charges (0.22 x 164.99)	36.30
COMPLETED RATE (1.4):			6812.70	Cu.M.
1.7	14.01	TMT FE 500 steel bars reinforcement complete.	88341.00	M.T.
		10% Hilly Area Charges	8834.10
COMPLETED RATE (1.7):			97340.10	M.T.

Testing Abstract

Sr.	Description of Laboratory Tests	Frequency	Rate	Amount
2.1	CEMENT: Consistency, Fineness, Specific Gravity, Setting Time, Strength, Soundness.	1 Set	3300.00	3300.00
2.6	CEMENT CONCRETE: Compressive strength and Mix Design.
	Compressive strength (Set of 3 cubes)	1	600.00	600.00
	Concrete Mix Design (Full basic material tests)	1	12100.00	12100.00
TOTAL TESTING CHARGES:				31200.00

Testing Measurements

Sr.	Description of Tests	Frequency	Consumption	Tests Req.	Unit
2.1	Laboratory Testing on CEMENT (Consistency, Strength, etc.)
	Standard Frequency: 1/50 MT	1/50 MT	0.95	1	MT
2.6	Laboratory Testing on CEMENT CONCRETE
	Compressive strength (Set of 3 cubes)	Per Set	1.12	1	Cu.M.
	Concrete Mix Design (All basic materials)	Per Grade	1.00	1	Design

Lead Charges (Source: Nashik)

Sr.	Material	Lead (KM)	Lead Charges	SSR Rate	Total Rate	Unit
1	12mm Metal	5	263.19	115.00	378.19	Cu.M.
5	Cement	5	164.99	4700.00	4864.99	MT

Recapulation Sheet

Code	Particulars of Works	Basis	Amount (INR)
A	Main Work (Septic Tank Construction)		65,975.87
Sub-Total (A)			65,975.87
B	Testing & Royalties
	Construction Material Testing		31,200.00
	Other Minerals (Royalties)		169.49
Sub-Total (B)			31,369.49
C	Provisions & Taxes
	Labor Insurance	0.5%	486.73
	GST (Goods & Service Tax)	18%	17,522.17
TOTAL COST OF PROJECT (A+B+C)			1,15,354.00