A seasonal noncommunity public water system must complete its applicable state-approved startup procedure and certification before serving the public. Establish whether documented off-season pressure qualifies for the approved waiver; otherwise follow the required inspection, repair, cleaning, disinfection and sampling process with qualified personnel. Clear water or an open facility is not proof that startup requirements are complete.
Does the seasonal-system procedure apply?
Confirm the regulatory classification with the drinking-water authority. ADEQ describes seasonal systems as noncommunity public water systems that do not operate year-round and start and stop at the beginning and end of an operating season. Examples include certain campgrounds, RV parks and seasonal food facilities. A temporarily vacant building is not automatically this regulatory category.
The certification form requires the applicable procedure each year or season the system reopens, before serving water to the public. Protecting plumbing in a vacant building covers a different property-maintenance task. Public-water-system registration establishes whether the supply is regulated in the first place.
Which startup path is supported by the records?
ADEQ's form allows certification that the system maintained and operated at least 20 psi through the off-season. That condition is not established by measuring good pressure only on opening day. Have the responsible operator verify the records and applicable waiver conditions with the agency.
If the system did not remain pressurized as required, the form directs the owner to the startup checklist and procedures. These include system inspection, repairs where needed, tank cleaning where applicable, disinfection, flushing and required bacteria and disinfectant-residual checks. Qualified personnel should plan and perform the work and obtain laboratory results before delivery to customers. This owner checklist does not provide disinfectant doses or authorize entering storage tanks.
Keep findings, corrective work and sampling records together. Water that looks clear does not demonstrate that the system has completed the approved startup procedure or satisfied its sampling requirements. A positive-coliform result needs its own prompt response.
What must be certified before opening?
ADEQ's certification form requires the authorized signatory to certify the completed path, with system identity and the seasonal opening date. It says to submit the certification before the seasonal startup date to the regulatory agency and copy ADEQ; the detailed checklist stays in the system records and is available on request.
Plan the filing date with the regulator. ADEQ's older seasonal factsheet includes a ten-day-before-opening filing instruction, while the linked certification form says prior to seasonal startup. Confirm the actual required lead time instead of assuming same-day paperwork is adequate.
Keep the signed submission and authority instructions with the certified operator arrangement. Arrange the next shutdown and monitoring schedule with the operator so the next season's readiness is documented rather than assumed.