§ 302.902. Classifications and subclassifications of wastewater systems.
(a) Wastewater systems will be classified into one of five classifications being designated as Classification A, B, C, D or E as follows:
(1) Classification A. Wastewater systems with a permitted average daily discharge flow greater than 5 million gallons per day or unlimited permitted discharge flows.
(2) Classification B. Wastewater systems with a permitted average daily discharge flow greater than 1 million gallons per day but less than or equal to 5 million gallons per day.
(3) Classification C. Wastewater systems with a permitted average daily discharge flow greater than 100,000 gallons per day but less than or equal to 1 million gallons per day.
(4) Classification D. Wastewater systems with a permitted average daily discharge flow equal to or less than 100,000 gallons.
(5) Classification E. A satellite collection system.
(b) Each wastewater system Classification A, B, C and D must be assigned one or more of 4 treatment subclassifications that identifies the treatment or collection methods, or both, used to process wastewater at that system:
(1) Subclassification 1—Activated Sludge.
(2) Subclassification 2—Fixed Film.
(3) Subclassification 3—Treatment Ponds and Lagoons.
(4) Subclassification 4—Single Entity Collection System.
(c) Upon written notice provided to the owners and available operators of the system, the Department may change the classification or subclassification of a wastewater system because of changes in the conditions or circumstances at the system, including, but not limited to:
(1) An increase in capacity that changes the class of the system.
(2) The addition or loss of a treatment technology.
(3) Other Federal or State regulatory changes in requirements relating to treatment technology used at the system.
(4) The issuance of a permit changing the class or subclassification of a system.
Cross References This section cited in 25 Pa. Code § 302.1003 (relating to certification classes and subclassifications of wastewater system operators); and 25 Pa. Code § 302.1206 (relating to operator in responsible charge).
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