
Septic Systems, HSTPs & Wastewater Services in Doonan QLD | Statewide Wastewater
Your Local Experts for Septic Tanks, HSTPs, Servicing & Council-Compliant Installations in Doonan and Surrounding Hinterland Areas
Need a septic system installed, upgraded or serviced in Doonan?
Welcome to Statewide Wastewater, the leading name in septic tanks, home sewage treatment plants (HSTPs) and wastewater management across the Sunshine Coast Hinterland — and Doonan QLD is one of our most in-demand zones. We know the area. We know the council requirements. And we deliver fully compliant, efficient, and long-lasting solutions for homes, granny flats, sheds, commercial properties, and acreage.
Common Septic & HSTP Projects We Handle in Doonan
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New builds requiring full wastewater treatment systems
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Granny flat additions needing council-compliant upgrades
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Converting outdated septic tanks to eco-friendly HSTPs
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Surface & subsurface irrigation solutions
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Emergency servicing or breakdown repairs
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System replacements during property sales
Septic Tank vs HSTP – What’s Best for Doonan
In most cases, Sunshine Coast Council prefers HSTPs, especially in semi-rural and rural areas like Doonan where environmental runoff and irrigation matter. We’ll advise you on the best system based on:
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Property size and zoning
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Soil testing and land application area (LAA)
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Water usageBuilding approvals
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Future property plans
We work with all brands — Ozzi Kleen, Taylex, Aquanova, Biocycle — and we help you choose the right fit for your property.
Thinking of a Granny Flat or Shed Conversion?
Don’t get caught out by council. Even small structures require approved wastewater solutions. We specialise in compact, efficient HSTPs that are perfect for:
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Studio sheds
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Home offices
We offer modular system designs that pass council without hassle — saving you time, money and headaches.
Get a Septic or HSTP Quote in Doonan
If you’re in Doonan, Eumundi, Tinbeerwah, Weyba Downs, or surrounding suburbs, we’re ready to help you install, upgrade or service your system today.
👉 Call Statewide Wastewater now on 0406 288 142 or [Click Here] to request more info. Fast. Honest. Local. Fully Council Compliant.

