Closing or selling a facility does not automatically end its Arizona industrial-stormwater authorization. Review the current permit’s termination conditions, remaining discharge and site controls, and submit the required Notice of Termination through myDEQ. Ownership changes also require the new operator’s coverage planning. Keep the termination confirmation and outstanding reports rather than treating inactivity as the end of obligations.
When can coverage be terminated?
The current non-mining industrial-stormwater permit, AZMSG2024-001, describes termination in Part 1.5. Ceasing operations is one possible basis only with the specified conditions: there are not or will no longer be industrial stormwater discharges, and the necessary sediment and erosion controls have been implemented. Other listed pathways include qualifying replacement coverage or an obtained No Exposure Certification.
Do not equate an inactive site, a no-discharge claim and a No Exposure Certification. Those are distinct conditions or procedures. Review the applicable pathway against the actual site and retain supporting records. ADEQ's current program page and permit are the starting point, not a general statement in a sale contract.
What happens when ownership changes?
The permit requires the former permittee to submit a Notice of Termination within thirty calendar days after a new owner or operator assumes responsibility. Its coverage table separately directs the new operator to submit an NOI thirty calendar days before taking over operational control or initiating activities, and to develop the required SWPPP.
Coordinate those tasks during the transaction, rather than assuming the old authorization transfers automatically. Ask ADEQ how the planned schedule and site conditions affect coverage. A plumbing-maintenance contractor is not automatically the facility's permit operator merely because it services a drain.
When do ongoing duties end?
The permit calls for a complete, accurate NOT through myDEQ. Authorization terminates once the department's NOT Summary is received, and outstanding required reports must be submitted at termination. Until authorization is terminated, the permittee remains responsible for permit conditions, including annual fees. Keep the confirmation; an internal note that the business closed is not that receipt.
Retain the SWPPP, inspection, monitoring and termination records for the applicable period. The permit generally requires covered records for at least three years after coverage expires or terminates. Continue separately required controls or approvals for any new construction or other discharge. The vacant-building plumbing checklist addresses maintenance risks, not termination of environmental coverage.