
Perc Testing & Septic Site Evaluation in Scranton & Wilkes-Barre
Building a new home or replacing an aging system is one of the biggest investments you will make. Before a single shovel hits the ground, perc testing tells you whether your land can support a septic system at all.
At Biros Septic & Drain Cleaning, we have been guiding property owners through this process since 1990. We work alongside your Sewage Enforcement Officer (SEO) so you never have to wonder what comes next.

What Happens During a Perc Test?
You should never have to guess what is happening on your own property. When you work with Biros Septic & Drain Cleaning, every step is handled with care and explained along the way.
1: Site Assessment
We review your property with you and identify suitable test areas based on setbacks, topography, and local regulations.
2: Coordination with Your SEO
Your county’s Sewage Enforcement Officer must be present and licensed to conduct the official soil evaluation. We coordinate this on your behalf so nothing falls through the cracks.
3: Soil Probes
The SEO examines soil borings at multiple locations to evaluate depth to limiting zones, soil texture, and other site conditions.
4: Percolation Testing
Test holes are soaked 24 hours in advance, then monitored during the official test. Timing varies by site conditions and county requirements.
5: Results and Next Steps
You receive the test results, and we walk you through what they mean in plain language. No confusing reports. No wondering what to do next.
By the time we are done, you will have a clear picture of your property’s capabilities and a confident path forward for your septic system.
Why Perc Testing Matters for Septic System Planning
Skipping or rushing this step costs more in the long run. A thorough site evaluation during septic system planning helps you:
✓ Avoid costly redesigns later in the project
✓ Choose the right system type before construction begins
✓ Meet all state and local permit requirements
✓ Confirm septic system suitability for your specific lot
✓ Keep your project timeline on track
Whether you are breaking ground on a new build in Luzerne County, replacing a failing system in Lackawanna County, or settling an estate in Monroe County, you deserve accurate information from the start.
Serving Scranton, Wilkes-Barre, and the Surrounding Region
Whether you need a perc test or a regular evaluation, our team at Biros Septic & Drain Cleaning provides perc testing and site evaluation services across:
- Luzerne County
- Lackawanna County
- Monroe County
- Columbia County
- Wyoming County
- Carbon County
- And all counties within our service region
Every county has its own permit process and SEO contacts. We know who to call, what paperwork is required, and how to keep your project moving.

Ready to Start? Get Your Perc Testing Scheduled.
Your land has a story to tell. Perc testing is how you read it before septic system installation begins. Biros Septic & Drain Cleaning has been helping property owners across Northeastern and Central Pennsylvania take that first step confidently since 1990.
You do not have to figure this out alone. We handle the coordination, walk you through every result, and make sure you have everything you need to move forward on solid ground.
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“I scheduled a time for the Biros Septic crew to come out and repair my septic tank. They were able to get me on the schedule within a couple days and they arrived on time and were very professional. They addressed my concerns and fixed the problem with no issues. Fair priced, friendly crew. Highly recommend.”
– Jay S, 5-Star Google Review

Frequently Asked Questions About Perc Testing
Here are the questions homeowners and property owners ask us most.
What is a perc test for a septic system?
A perc test measures how quickly water moves through your soil, which determines what type of septic system your property can support. The evaluation includes two components: a soil probe conducted by a licensed Sewage Enforcement Officer (SEO) to assess soil texture and structure, and a percolation test where holes are dug, pre-soaked, and monitored for drainage rate. Think of it less as a pass-or-fail test and more as a roadmap. Whatever the results show, you will know exactly where you stand before any decisions are made.
What should I do to prepare for a perc test?
A little preparation goes a long way. Before your perc test, have your property survey on hand, note any prior septic activity on the lot, and check with your township or municipality about current permit status. Keep in mind that a pre-soak period is required before the official test, so plan accordingly. Not sure where to start? That is exactly what we are here for. Contact us to get the process moving.
How long does a septic percolation test take?
Most perc tests take one to two days from start to finish, including the required pre-soak period. Exact timing depends on your county’s SEO availability and current site conditions.
Who actually conducts the perc test?
A licensed Sewage Enforcement Officer (SEO) performs the official soil evaluation and percolation test. Biros Septic & Drain Cleaning coordinates the full process on your behalf, from scheduling to walking you through the results.
What if my property does not get favorable results?
It is not the end of your project. Alternative system designs may still be possible. We review your results with you in plain language and help you understand your options before any decisions are made.
Do I need a perc test for a septic system replacement?
In most cases, yes. Pennsylvania typically requires a site evaluation before permits are issued for replacement systems. Requirements vary by county, so we recommend confirming with us or your local SEO.
Do you serve my area?
We serve Carbon, Columbia, Clinton, Luzerne, Lackawanna, Lycoming, Monroe, Montour, Northumberland, Schuylkill, Snyder, Sullivan, Union, and Wyoming Counties. If you are near Scranton or Wilkes-Barre, you are in good hands.