The septic tank liquid capacity required by Env-Wq 1010.01 or Env-Wq 1010.02, as applicable, may be attained using 2 or more tanks in series, provided that the first tank is large enough to contain at least 2/3 the total required volume.

Source. (See Revision Notes #1 and #2 at chapter heading for Env-Wq 1000) #11184, eff 10-1-16; ss by #14486, eff 2-1-26, EXPIRES: 2-1-36