Effluent discharge license cancellation by NEMA

NEMA may in writing, cancel any effluent discharge license—
1. if the holder of the license contravenes any provision of EMCA Cap 387 or any regulations made thereunder;
2. if the holder fails to comply with any condition specified in the license; or
3. if the Authority considers it in the interest of the environment or in the public interest so to do.

Ref: EMCA Section 76

Question

When is it advisable for NEMA to cancel an effluent discharge license?