“Heterotrophic plate count (HPC)” means a laboratory test for culturing and quantifying live bacteria, which are primary indicators of disinfection efficiency. Indicators of health risk include normal skin flora such as Streptococcus, Staphylococcus, and Pseudomonas that are likely to be shed in oils, saliva, and mucus discharges.

Source. (See Revision Note #1 at chapter heading for Env-Wq 1100) #8468, eff 11-1-05; ss by #10577, eff 5-1-14 (from Env-Wq 1102.23); ss by #13198, eff 5-1-21 (formerly Env-Wq 1102.29) (see Revision Note #3 at chapter heading for Env-Wq 1100)