A new community or nontransient noncommunity water system subject to Arizona’s capacity-development rules needs an approved elementary business plan before operating. Assemble technical source and design evidence, ownership and staffing responsibilities, and the required financial-capacity documentation. Confirm applicability and submission requirements with ADEQ; engineering approval or a well record does not replace this review.
Which new systems need this plan?
Arizona’s R18-4-601 applies the capacity-development requirements to new community water systems and nontransient noncommunity water systems that begin operation on or after October 1, 1999. It states that this article does not apply to an existing public water system. Confirm the proposed system’s category and whether the application is required before preparing the packet.
ADEQ calls the submission an elementary business plan. It is a drinking-water capacity review, not simply a lender’s business narrative. The owner cannot commence operation without the required approval. The public-system classification guide helps identify the earlier threshold question; it does not supply this approval.
What evidence supports technical capacity?
Use ADEQ’s application and the current rules to assemble source-adequacy documentation, evidence that the supplied water will meet drinking-water standards, appropriate infrastructure and treatment design, and the required certified-operator arrangement. Coordinate the qualified professionals responsible for the source and engineering analysis.
Include projections from initial operation through final build-out, proposed uses, component standards and manufacturer specifications. The application also calls for a corrective-action plan for replacement or repair based on manufacturer recommendations or engineering specifications. A sample result or pump nameplate alone does not establish long-term source adequacy or design capacity.
Use the sample-siting-plan guide when coordinating the source/distribution map and applicable microbiological monitoring locations. That operating plan is separate from source-adequacy and engineering evidence in the capacity application.
Ask the agency about site-specific source evidence before commissioning an investigation. Do not take a requirement for this new-system review and present it as a universal standard for every private household well.
What does managerial and financial capacity show?
Identify ownership, responsible contacts, the organization and staff duties. Document the required operator class and grade, the capital-improvement plan, intended system category and any planned ownership transfer. ADEQ’s application includes disclosure responsibilities so a later owner receives relevant operating information.
Financial documentation must follow the applicable route in the application and rules. The planning horizon is generally five years or the end of build-out, whichever is longer. Specified Arizona Corporation Commission or ADWR financial determinations can provide an applicable alternative; confirm that the actual determination qualifies rather than attaching an unrelated approval.
A contract operator agreement can document staffing responsibilities, but it does not replace the technical or financial portions of the application.
The drinking-water asset inventory and replacement-plan guide helps organize the physical equipment and condition information used in ongoing planning. Its guidance does not replace the application’s required financial or technical evidence.
How should the owner manage submission and changes?
Use the current checklist to identify missing documents, consistent assumptions and responsible preparers before filing. Retain the submitted version and respond to deficiency notices within the stated requirements. Agency review periods are not a guaranteed opening date.
Keep the elementary business plan separate from construction and operating approvals. ADEQ’s application also requires notification when relevant technical or managerial specifications change between approval to construct and approval of construction. Confirm how a change affects the approved capacity documents before relying on the old packet. Once operating, retain current records for duties such as sanitary-survey preparation.
For a community system, also confirm the applicable ADWR system-water-plan cycle and components. That recurring resource-planning process is distinct from the new-system capacity application discussed here.