Section 18.05 - Partial and General Prohibitions for Industrial Wastewater Holding Tanks, Mobile Tanks, and Containers(1) No facility may use a holding tank to accumulate or store on-site generated or off-site generated industrial wastewater prior to shipping for off-site treatment or disposal if it is or becomes feasible to discharge the industrial wastewater to a sewer system, except when: the local sewer authority requests in writing that the facility use a holding tank prior to shipping off-site in order to meet sewer operational or maintenance requirements; there are emergency or episodic situations; or, the industrial wastewater is shipped to a licensed Treatment, Storage and Disposal Facility (TSDF) or a Centralized Waste Treatment (CWT) Facility. For the purpose of 314 CMR 18.05(1), the criteria for determining the feasibility of discharging the industrial wastewater to a sewer system are when:(a) a facility has an existing sewer line connection to the sewer collection system, and the industrial wastewater discharge can be hydraulically accepted by both the sewer collection system and local wastewater treatment plant; or(b) a facility meets all of the following conditions:1. an existing sewer line abuts the facility boundaries;2. the discharge of the industrial wastewater can be hydraulically accepted by both the sewer collection system and local wastewater treatment plant; and3. the distance from any building generating industrial wastewater to the closest sewer connection manhole is 250 feet or less.(2) If a facility meets the above feasibility criteria, but connection and discharge of its industrial wastewater to a sewer system would be 50% or more expensive than maintaining an existing holding tank annually or installing a new holding tank, or if the facility can demonstrate any other extenuating circumstance, the facility may request an exemption from this requirement. All requests must be submitted to the Department in writing and contain all necessary documentation to support the request for an exemption. The Department shall review and provide a decision on the request, in writing, on a case-by-case basis. The Department may request any facility owner to update information as necessary, which may result in a revocation or continuation of the exemption.(3) Owners and operators of holding tanks, mobile tanks, or containers used to accumulate or store industrial wastewater prior to off-site recycling, treatment or disposal shall not:(a) store incompatible materials in the industrial wastewater holding tank, mobile tank or container;(b) store hazardous waste in the industrial wastewater holding tank, mobile tank, or container; or(c) install or maintain such holding tanks within the Zone I or the Zone A of a public water supply in violation of the requirements of 310 CMR 22.21(3)(b): Zone 1 and 22.20B(2).Amended by Mass Register Issue 1322, eff. 9/23/2016.