1. S.No.

2. Reference line

3. Length (Mtrs)

4. Average Sewage Generation

5. Peak Sewage Discharge

6. Sub Soil Infiltration

7. Total Discharge

1. Diameter (mm)

2. Gradient

3. Capacity

4. Initial Point-G.L.

5. Initial Point-I.L.

6. End Point-G.L.

7. End Point-I.L.

UNAUTHORIZED REGULARISED COLONIES

• In case of Unauthorised regularized colonies where water and sewerage lines were laid and notified before 02.04.1987, Rs.15/- and Rs.45/- per sq. mt. will be charged for water and sewerage respectively plus 12% compound interest per annum w.e.f. 02.04.1987.

• Services lay between 01.11.1990 to 04.4.1994, Rs. 20/- and Rs. 55/- per sq. mt. plus 12% compound interest will be levied for water and sewerage respectively from the date of notification.

• Services laid after 05.04.1994 onwards, Rs. 55/- and Rs. 100/- per sq. mt. plus 12% simple interest for water and sewerage will be levied from the date of notification.

• The rates of development charges for provision of Water & Sewage facility in unauthorized regularized colonies of Delhi have been raised to Rs. 110/- and Rs. 200/- per sq. meter respectively vide resolution No.481 dated 6-12-1999. The revised rates are effective from 4-2-2000. However the Board has also decided that old rates will be charged from those plot holders who had paid 75% or more of the first advance installment for the colony as a whole before 4-2-2000. The old rates will also be charged from those colonies which were asked in writing before 4-2-2000 to deposit the development charges if such pays 75% or more of its advance installment at the pre-revised rates.

• The revised rates shall be automatically incremented annually by 12% starting from 1st April 2001.

• A rebate of 20% shall be granted to the plot holders, if they make full payment of development charges in lump sum on revised rates within 3 months from the date of issue of the first bill. If not, the entire development charges shall be recovered from him in 20 equated quarterly installments.

• It shall be mandatory on the part of plot-holders to pay sewer development charges irrespective of the fact whether they take the sewer connection or not. The onus for paying the mandatory sewer development charges shall lie on the plot holder alone right from the date of notification. The water supply shall be liable to be disconnected in case of default.

• A compound surcharge of 5% on the total amount shall be levied if the water/sewer development charges installments are not paid within due date.

• Old agreement cases shall continue to be governed by the old rates, as applicable.

UNAUTHORIZED UNREGULARISED COLONIES

• Rates for water development charges for provision of water lines in unauthorized unregularised colonies has been revised from the existing Rs. 55/- per sq. meter to Rs. 110/- per sq. meter. If the payment of full amount of development charges is made within three months of the receipt of Ist bill, 10% rebate will be given.

• Water lines will be laid on payment of first advance installment of Rs. 25/- per sq. meter of the plotted area.

• The tender will be called only on receipt of 50% of the first installment and work will be executed only after receipt of 75% of the first advance installment from the colony as a whole.

• After execution of the scheme water connections will be released on payment of another Rs. 25/- per Sq. Mt. and the balance will be payable in 20 equated quarterly installment.

For any further clarification with regard to payment of development charges kindly contact Survey Officer of the respective zone.

1. The entire sewage system should be properly ventilated.

1. Do not dispose off paper and plastic waste in the sewer to avoid blockage.

2. Joints of sewers should be made water tight, & should be properly checked so as to stop the leakage and dampness in the building.

2. Never allow any clay, grit, sand, or 'malba' to go into the sewer, as these things cause sever blockage.