Arizona Reference
Mohave County Septic Rules
Arizona's septic rules are set by the state, but Mohave County administers them — and adds requirements of its own. Here's what applies here.
Last verified: July 2026
← Arizona septic rules when you buy or sell a home
Who administers it
Mohave County Development Services — Environmental Quality / Waste Disposal
- Phone
- 928-757-0903
- EQpermits@mohave.gov
- Address
- 700 W. Beale St., Kingman, AZ 86401
Where you file the transfer
Locally, with the county. Fee: $50 — Mohave's own fee, covering the Report of Inspection and Notice of Transfer together. ADEQ's $70 does not apply here.
Permit fees
| Permit | Fee |
|---|---|
| Residential conventional (review + 2 inspections) | $518 |
| Commercial conventional | $619 |
| Alternative onsite system | $940 |
| Composting toilet (4.03) / vault & haul (4.14) | $518 |
| Tank replacement | $260 |
| Additional inspection | $114 |
| Report of Inspection + Notice of Transfer | $50 |
| Installation before permit | $407 |
What's different here
- Its own ordinances layered on the state program: Ordinance 2006-04 (Alternative System Requirements) and Ordinance 2006-02 (Site Investigator Qualifications)
- A county-maintained roster of approved site investigators — not just anyone qualifies
- An Adjusted Soil Absorption Rate Chart for alternative systems
- Septic sits under Development Services rather than a health department
Other Arizona counties
This is informational guidance, not legal advice. County fee schedules change — confirm current requirements at 928-757-0903.