EFFLUENT DISCH.. STANDARDS



EFFLUENT DISCHARGED STANDARDS FOR SEWAGE TREATMENT PLANT

(Directions under section 18(1) (b) of the Water (Prevention and control of pollution) Act, 1974 regarding treatment and utilization of sewage)

Sl No

Parameters

Parameters limits (Standards for New STPs Design after notification date)*

1

pH

6.5-9.0

2

BOD (mg/l)

Not more than 10

3

COD (mg/l)

Not more than 50

4

TSS (mg/l)

Not more than 20

5

NH4-N (mg/l)

Not more than 5

6

N-Total (mg/l)

Not more than 10

7

Faecal coliform (MPN/100 ml)

Less than 100

Note :

  1. Directions under section 18(1) (b) of the Water (Prevention and control of pollution) Act, 1974 regarding treatment and utilization of sewage communicated to Pollution Control Board by Central Pollution Control Board vide Lr No.A-19014 /43/06-MON, Dt. 21-04-2015.
  2. These standards will be applicable for discharge in water resources as well as for land disposal. The standards for faecal coli form may not be applied for use of treated sewage in industrial purposes.
  3. * Achievements of standards for existing STPs within 05 years from the date of notification.

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