ATT Septic Systems in Portland & Surrounding Areas
Our Portland ATT Septic System Process

Contact Us
Call today or complete our contact form to get more information on our ATT system inspections, maintenance, or installation services. Our friendly team will help you get started right away.

Receive A Quote
We’ll share clear, upfront pricing for your ATT system service so there are no surprises later.

Schedule Services
Once your quote is approved, we’ll work with you to schedule your ATT septic services. Our team will show up on time and keep you updated throughout the process.

Let Us Handle the Dirty Work!
Once on-site, the Lil’ Stinky team will handle all pumping, inspection, and other requirements for your ATT service. You can count on us for thorough, quality service.
Why Locals Choose Us for ATT Septic Systems in Portland
3 Reasons to Choose Lil’ Stinky ATT Septic Systems in the PDX Area
Friendly, Quality Service
From your first call to your final report, you can count on Lil’ Stinky for reliable, clear communication and a smooth ATT service.
Trusted Local Professionals
Lil’ Stinky is a local company proudly serving the Portland area with experienced ATT septic professionals who understand local requirements, conditions, and DEQ standards.
Clear, Upfront Pricing
Lil’ Stinky offers transparent estimates with straightforward communication, so you always know what your ATT septic system service includes, without surprises.
Choose Lil’ Stinky for ATT Septic in Portland
Providing dependable septic inspection services with care, honesty, and over two decades of expertise.
Contact us today!
Benefits of ATT Septic Systems
Alternative Treatment Technologies for septic systems offer homeowners a more efficient way to manage wastewater. Here are a few key benefits to choosing an ATT system for your Portland area home:



Areas We Serve
Lil’ Stinky Septic proudly serves Portland and the surrounding areas with professional septic services. If you’re looking for a reliable septic inspection, contact us today for your free quote!
24/7 Emergency Services Available
Timely septic services you can trust when you need them most.
Contact us today!
FAQs About ATT Septic Systems
Why Would a Homeowner Need an ATT System?
Some properties require an ATT septic system due to:
- Small lot sizes
- Shallow water tables
- Poor or limited soil conditions
In the past, the only alternative treatment option for these situations was a sand filter system. Today, newer Alternative Treatment Technologies (ATTs) provide more compact and efficient solutions. By adding an ATT unit, you can meet Oregon DEQ onsite wastewater requirements while keeping your property safe and compliant.
What Are the Maintenance Requirements for ATT Septic Systems?
ATT systems require ongoing care to operate correctly. Homeowners must:
- Maintain an Operation & Maintenance Service Contract with a certified provider.
- Submit an annual report to the DEQ or local county (fees vary by county).
- Schedule regular pumping to prevent sludge from entering the drain field.
Like a car or HVAC system, preventive maintenance helps avoid costly repairs. ATT systems may include blowers, pumps, compressors, and switches that need periodic service.
How Much Does an ATT Septic System Cost in Oregon?
ATT systems vary in installation cost, energy use, and maintenance needs. During your site evaluation, a certified inspector will determine:
- What type of system your property requires.
- Whether you need Treatment Standard 1 or Treatment Standard 2.
- The most cost-effective solution for your lot and soil conditions.
What Are the Two Oregon ATT Treatment Standard Categories?
Oregon Administrative Rules classify alternative treatment systems into two categories:
Treatment Standard 1
- Requires more separation from the permanent water table.
- Treated effluent still contains higher bacteria levels, so soil must provide additional filtration.
Treatment Standard 2
- Provides additional disinfection and has proven ability to reduce nitrogen levels in wastewater.
How Often Should an ATT System Be Inspected?
Annual inspections for ATT systems are required to remain in compliance with Oregon DEQ regulations. This once-yearly inspection will ensure pumps, blowers, alarms, and other mechanical components remain in working order and help prevent potentially costly damage to the drain field.
Can I Do My Own ATT Maintenance?
While there are some basic upkeep items, such as checking alarms and clearing the system area of debris, most maintenance must be completed by a certified professional. For a reliable DEQ-certified technician in Portland and the surrounding areas, call Lil’ Stinky today!


