Checked October 20, 2026 against the permit text published by Arizona Department of Environmental Quality. Sources and sections are listed at the end of this page.
In Arizona, construction stormwater coverage comes from AZPDES Construction General Permit (permit no. AZG2025-001), issued by Arizona Department of Environmental Quality (ADEQ). It took effect August 29, 2025 and expires August 28, 2030.
Scope note. Optional retention-basin alternatives (skip perimeter controls or stabilization) need a 100-yr/2-hr calculation by an Arizona registered PE, geologist or landscape architect (Parts 3.3, 3.4.3); our plans use standard perimeter controls instead.
At a glance
| Item | What the permit says |
|---|---|
| How coverage is obtained | NOI in myDEQ; SWPPP must be completed before the NOI (ADEQ CGP page) |
| Agency fee | Acreage-based initial fee plus annual fee invoiced on the NOI anniversary (amounts on ADEQ's fee page) |
| Who may prepare the plan | SWPPP developed by a 'qualified person' before the NOI (Parts 1.x, 6.1.1; App. A definition) - no license or seal |
| Who inspects | Qualified personnel as defined in Appendix A (Part 4.1) |
| Inspection frequency | Every 7 days (not within 5 days of the last), OR every 14 days (not within 10) + within 24 h after 0.5 in in 24 h; 7-day schedule within 1/4 mile upstream of impaired waters or OAWs (Parts 4.2.1-4.2.3); rainfall of 0.25 in+ logged in the SWPPP (4.2.2.b) |
| State forms and templates | ADEQ SWPPP Template (.docx), SWPPP checklist and inspection form published |
Points that are easy to miss
- SWPPP must exist before the myDEQ NOI.
- Keep a rain gauge or cite a representative weather station in the SWPPP.
- Inspection spacing rules: not within 5 (or 10) days of the previous one.
- Annual fee invoices continue until the NOT is approved.
What a SWPPP Desk plan covers here
We prepare a site-specific plan written to AZG2025-001, with each section mapped to the permit part it answers. You, the operator, review and sign it and keep it on site.
Checkout open in Arizona. State ruling: Sell. The site check on the plan page applies these conditions before payment. See coverage.
What we do not do
- Our plans are not sealed or stamped. BMPs that need design calculations, such as sediment basins and post-construction practices, come from your design professional.
- The operator signs the plan and is responsible for it.
- We do not visit or inspect sites.
- We do not file the NOI or any permit application for you. We tell you which form and portal the permit names.
Sources
- Permit text: static.azdeq.gov (Cover (dates), 6.1.1 (SWPPP by qualified person before NOI), 4.1-4.2 (inspections), 3.4.3 (PE-calculated alternatives), Appendix A (qualified person)). Checked 2026-10-20.
- Agency page: azdeq.gov. Checked 2026-10-20.
SWPPP Desk is not affiliated with Arizona Department of Environmental Quality. If a rule here has changed, write to [email protected] and we will correct this page.