Septic system requirements in Dewey County, Oklahoma
The septic rules landplan.io applies in Dewey County, what a septic tank costs there, and the parcel data we hold.
Updated
Design a septic system for an address in Dewey County
Oklahoma's state rules apply in Dewey County: landplan.io has no county rules of its own here. State rules: Reviewed See Oklahoma's rules
Septic systems allowed in Dewey County
The system types landplan.io permits in Dewey County:
- Conventional Subsurface Absorption field
- ET/A Field
- Low Pressure-dosed Absorption field
- Drip Irrigation
- Mound
- Spray Irrigation
Septic tank size in Dewey County
The daily design flow of a home: 75 gal/day per bedroom, at least 225 gal/day. The septic tank is sized from that flow:
| Daily design flow | Minimum tank |
|---|---|
| up to 250 gal/day | 750 gallons |
| 250 to 350 gal/day | 1,000 gallons |
| 350 to 500 gal/day | 1,250 gallons |
Septic setbacks in Dewey County
| From | To | Distance |
|---|---|---|
| Polygon | Existing Septic Component to be Abandoned | 5 ft |
These are the values the landplan.io design engine applies in Dewey County. Confirm a design with the Oklahoma health department or your county's before you build.
Parcel data in Dewey County
landplan.io has no parcel boundaries for Dewey County yet: you draw the lot on the aerial map, and soil and elevation load as anywhere else.
Septic companies, designers and jobs in Oklahoma
- Septic companies and distributors in Oklahoma
- Septic designers in Oklahoma
- Septic design jobs in Oklahoma
Where the rules come from
The regulations and documents landplan.io's Dewey County, Oklahoma rules are read from:
- Chapter 641 - Individual and Small Public On-Site Sewage Treatment Systems (Okla. Admin. Code (OAC) Title 252, Chapter 641)
- OAC 252:641 Appendices A-O - system options and vertical separation, minimum lot size, soil groups, pipe specifications, small public flows, size charts, net evaporation zones and example drawings (transcribed from the published images) (OAC 252:641 Appendices A, B, C, F, H, I, J, K, L, M, O)
- OAC 252:641 Appendix E as codified through the 2012 Legislative session (superseded; source of footnote 11 text) (OAC 252:641 Appendix E (2012 codification), footnote 11)
- OAC 252:641 Appendix E - Horizontal Separation Distance Requirements for On-Site Sewage Treatment Systems (transcribed from the published image)
Near Dewey County
- Custer County
- Blaine County
- Woodward County
- Major County
- Roger mills County
- Ellis County
- Washita County
- Woods County
- All of Oklahoma
Questions
What septic systems are allowed in Dewey County?
landplan.io designs by Oklahoma's state rules there and permits: Conventional Subsurface Absorption field, ET/A Field, Low Pressure-dosed Absorption field, Drip Irrigation, Mound and Spray Irrigation.
What size septic tank do I need in Dewey County?
landplan.io sizes the septic tank in Dewey County from the daily design flow: up to 250 gal/day: 750 gallons; 250 to 350 gal/day: 1,000 gallons; 350 to 500 gal/day: 1,250 gallons. A home's design flow is 75 gal/day per bedroom, at least 225 gal/day.
Does landplan.io have parcel data for Dewey County, Oklahoma?
Not yet: you draw the lot on the aerial map, and soil and elevation load as anywhere else.