An existing septic tank, or an existing septic tank that was replaced pursuant to Env-Wq 1010.14, having a previous state-approved ISDS design and operational approval from the department may continue to be used if the existing septic tank:
- (a) Has a capacity of at least 1,000 gallons and additional tank capacity is proposed to meet the requirement in Env-Wq 1010.01 or Env-Wq 1010.02;
- (b) Will meet the requirements of Env-Wq 1010.03, Env-Wq 1010.05, Env-Wq 1010.07, and Env-Wq 1010.08;
- (c) Was installed after September 1, 1989;
- (d) Is not within 75 feet of the reference line; and
- (e) Is certified by a permitted designer or licensed septic system evaluator as being in good structural and working condition and is water tight.
Source. #14486, eff 2-1-26, EXPIRES: 2-1-36