“Grab sample” means a sample that is taken from a waste stream without regard to the flow in the waste stream and over a period of time not to exceed 15 minutes.

Source. #8235, eff 12-22-04 (See Revision Note at chapter heading for Env-Wq 1200) (formerly Env-Ws 1202.20); ss by #9798-A, eff 10-9-10; ss by #12739, eff 3-19-19