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13930 WA-9, Arlington, WA 98223
King County has over 85,000 private septic systems. Doing a King County septic records search means knowing about two separate official databases - OnlineRME and the ArcGIS Septic Records app - and understanding what each one holds. Leave a request and our certified specialists will search both systems for you, pull everything on file for your property, and send it to your email with a personal call to explain it all. Completely free.
- We search both King County databases - OnlineRME and the ArcGIS Septic Records app
- You receive your as-built drawings, permits, and service history by email
- A specialist calls you personally to explain what the documents mean for your property
- If needed, we dispatch a technician, inspector, or designer to your site
- The records search is 100% free - no hidden fees, no strings attached
Find Your King County Septic Records - We'll Do It Free and Walk You Through Everything
Leave a request and we'll find your King County septic records and send them to your email. We'll call you to walk through everything.
Art Nikolin
Operations Manager of Septic Solutions LLC
"King County is one of the more complicated places to search for septic records on your own. There are two official databases to check: OnlineRME through Public Health - Seattle & King County, and the ArcGIS Septic and Group B Records app that launched in 2023. When we're pulling a septic as-built drawing for a King County property, we check both systems - because updated drawings sometimes show up in the Time of Sale Inspection Reports under Application History in OnlineRME, not in the main records view. Most people don't know to look there.
If you're buying a home in King County and want to see the inspection history before you close, we pull all of that from both databases and walk you through what the records show. When you leave a request, my team does the search, sends everything to your inbox, and calls you personally. You can search through kingcounty.gov on your own if you'd like. We're here for everyone who'd rather have a pro handle it."
If you're buying a home in King County and want to see the inspection history before you close, we pull all of that from both databases and walk you through what the records show. When you leave a request, my team does the search, sends everything to your inbox, and calls you personally. You can search through kingcounty.gov on your own if you'd like. We're here for everyone who'd rather have a pro handle it."
Serving Woodinville, Duvall, Carnation, Fall City, Snoqualmie, North Bend, Enumclaw, Black Diamond, Maple Valley, Vashon Island, Issaquah, Sammamish, Kirkland, Redmond, and all of King County.
How We Find Your King County Septic Records and Help You Understand Them
Tell us your property address and what you need. We take it from there.
Leave a Request or Give Us a Call
We check both OnlineRME and the ArcGIS app - the two official ways to look up King County septic records online.
We Search Both King County Databases
As-built drawings, permit records, and service history - we know exactly where to find them in King County's systems.
We Review and Interpret Your Documents
We Send a Specialist to Your Property If You Need More
Need to find your septic tank location in King County? We can come out and locate it on-site.
We Send Everything to Your Email and Call You
The full document package from both King County databases and a personal call from a specialist who explains what it all means.
Five steps. As fast as possible - usually one business day. Free.
Start Your King County Septic Records Search Right Here
A lot of people who come to us have already tried to find their King County septic records on their own and run into problems. Maybe they didn't know about both the OnlineRME system and the ArcGIS app. Maybe they found the records but couldn't tell what they were looking at. When you leave a request, we take the whole process off your hands.
To find septic system records for your property in King County, all we need to start is your address. The parcel number helps a lot too - both King County databases accept it, and it's the most reliable identifier for older properties in Enumclaw, Black Diamond, and out on Vashon Island where address data may have changed.
Tell us what you're working on: buying in Fall City or Woodinville, selling in Sammamish, planning an ADU in Duvall, or just trying to understand what system is on your property in Carnation.
To find septic system records for your property in King County, all we need to start is your address. The parcel number helps a lot too - both King County databases accept it, and it's the most reliable identifier for older properties in Enumclaw, Black Diamond, and out on Vashon Island where address data may have changed.
Tell us what you're working on: buying in Fall City or Woodinville, selling in Sammamish, planning an ADU in Duvall, or just trying to understand what system is on your property in Carnation.
King County Septic Lookup - Two Databases, One Request
Once your request comes in, our specialists check both of King County's official septic record systems. When searching OnlineRME, you have to specifically select "King County" - otherwise the system searches statewide and returns results for other counties. The King County septic lookup by address works well in both systems, but the ArcGIS app also shows records spatially on a map, which can help when addresses have changed.
King County septic records online are split between the two platforms in ways that aren't always obvious. We search both, check the Application History section in OnlineRME for updated drawings, and look for any records tied to Time of Sale inspections. For properties where the parcel has been re-platted or septic records by address don't return a clean match, we search by parcel number and contact Public Health - Seattle & King County directly if we need to.
For properties on Vashon Island and in the Poverty Bay area, we also check for documentation under the Healthy Beach Project and Pollution Identification and Correction programs, which have their own record sets.
King County septic records online are split between the two platforms in ways that aren't always obvious. We search both, check the Application History section in OnlineRME for updated drawings, and look for any records tied to Time of Sale inspections. For properties where the parcel has been re-platted or septic records by address don't return a clean match, we search by parcel number and contact Public Health - Seattle & King County directly if we need to.
For properties on Vashon Island and in the Poverty Bay area, we also check for documentation under the Healthy Beach Project and Pollution Identification and Correction programs, which have their own record sets.
Reading Your King County As-Built Drawing, Permit Records, and Service History
A septic as-built drawing from King County shows the final installed layout of your system - tank location, drainfield trenches, distribution box, and access covers, all measured from fixed points on the property. If you're wondering where to find septic permit records in King County, they're in OnlineRME - but updated drawings are sometimes in the Application History tab under Time of Sale Inspection Reports, not in the main records section. We always check both places.
Looking up the septic system history for a property in King County is more involved than in most other counties because the data is split across two platforms. For anyone buying a house in King County who needs septic inspection records before closing, we pull from both sources and build a complete picture. In King County, septic inspection at the time of sale has been required for years - it's not a new rule.
We also note system age and type. King County has a well-documented issue with aging urban OSS systems in Kirkland, Redmond, Woodinville, and Sammamish that are past their designed service life. Knowing what you're working with before a sale or a major project is worth the time.
Looking up the septic system history for a property in King County is more involved than in most other counties because the data is split across two platforms. For anyone buying a house in King County who needs septic inspection records before closing, we pull from both sources and build a complete picture. In King County, septic inspection at the time of sale has been required for years - it's not a new rule.
We also note system age and type. King County has a well-documented issue with aging urban OSS systems in Kirkland, Redmond, Woodinville, and Sammamish that are past their designed service life. Knowing what you're working with before a sale or a major project is worth the time.
Your King County Septic Records, Delivered and Explained
When the search across both systems is done, we put everything into one package and send it to your inbox: as-built drawing, permits, service history, and our notes - system type, age, and anything that deserves attention.
Then one of our specialists calls you personally. Someone who works with King County's records systems regularly and understands the nuances - what's in OnlineRME versus the ArcGIS app, what the aging OSS situation means for urban properties, and how to read the county's inspection reports. If you're buying, we help you understand what the history reveals. If you're selling, we walk you through what needs to be ready for the required inspection. If you're planning an ADU in Duvall or Fall City, we explain where the drainfield runs and what that means for your project.
Then one of our specialists calls you personally. Someone who works with King County's records systems regularly and understands the nuances - what's in OnlineRME versus the ArcGIS app, what the aging OSS situation means for urban properties, and how to read the county's inspection reports. If you're buying, we help you understand what the history reveals. If you're selling, we walk you through what needs to be ready for the required inspection. If you're planning an ADU in Duvall or Fall City, we explain where the drainfield runs and what that means for your project.
Can't Find Your Septic Tank or Drainfield in King County? We'll Come Out.
Sometimes the question is very direct: where is my septic system on my property in King County? How do I find my septic tank in Carnation or North Bend? How do I figure out where the drainfield runs in Fall City before I start digging?
On older properties in Enumclaw, Black Diamond, and on Vashon Island, what's in the records may not match what's in the ground today. If you need to physically locate your septic tank in King County, we send a certified field technician to your property. They find the tank, distribution box, and drainfield and document their actual positions. The septic drainfield location records they produce reflect where things are now - not just where the system was designed to go.
Buying or selling in King County? We schedule full septic inspections - required by law for all property sales. We serve all of King County: Woodinville, Duvall, Carnation, Fall City, Snoqualmie, North Bend, Enumclaw, Black Diamond, Maple Valley, Vashon Island, Issaquah, Sammamish, Kirkland, Redmond, Newcastle, and all surrounding areas.
On older properties in Enumclaw, Black Diamond, and on Vashon Island, what's in the records may not match what's in the ground today. If you need to physically locate your septic tank in King County, we send a certified field technician to your property. They find the tank, distribution box, and drainfield and document their actual positions. The septic drainfield location records they produce reflect where things are now - not just where the system was designed to go.
Buying or selling in King County? We schedule full septic inspections - required by law for all property sales. We serve all of King County: Woodinville, Duvall, Carnation, Fall City, Snoqualmie, North Bend, Enumclaw, Black Diamond, Maple Valley, Vashon Island, Issaquah, Sammamish, Kirkland, Redmond, Newcastle, and all surrounding areas.
Not Sure Where Your Septic System Is in King County?
Give us your property address and we take it from there. Most records are found and delivered within one business day.
Leave a request and we'll find your King County septic records and send them to your email. We'll call you to walk through everything
How to Find Septic System Records in King County, WA
King County maintains records for over 85,000 private septic systems across two separate platforms. King County septic records are held in OnlineRME through Public Health - Seattle & King County, and in the ArcGIS Septic and Group B Records app launched in 2023. When searching OnlineRME, you need to select "King County" specifically - otherwise the search runs statewide. King County septic records online are split between these two systems in ways that aren't always intuitive: service history and inspection reports are primarily in OnlineRME, while the ArcGIS app provides a map-based view of which parcels have records available.
A septic as-built drawing from King County is the document that shows where your tank, drainfield, and all components are physically located on your property. One thing most property owners don't know: updated as-built drawings in King County are sometimes filed under Time of Sale Inspection Reports in the Application History section of OnlineRME, not in the main records view. If you only check the top-level records page, you may miss them.
If you need to find your septic tank location in King County or understand where your drainfield runs before a construction project or ADU addition, the as-built drawing is the starting point. When records are incomplete or the property has changed since installation, a site visit from a certified technician is the practical next step. Septic Solutions searches both King County databases at no charge and sends a certified specialist to your property when the records alone aren't enough.
A septic as-built drawing from King County is the document that shows where your tank, drainfield, and all components are physically located on your property. One thing most property owners don't know: updated as-built drawings in King County are sometimes filed under Time of Sale Inspection Reports in the Application History section of OnlineRME, not in the main records view. If you only check the top-level records page, you may miss them.
If you need to find your septic tank location in King County or understand where your drainfield runs before a construction project or ADU addition, the as-built drawing is the starting point. When records are incomplete or the property has changed since installation, a site visit from a certified technician is the practical next step. Septic Solutions searches both King County databases at no charge and sends a certified specialist to your property when the records alone aren't enough.
Once We Find Your Records, We Can Help With Everything Else
From as-built lookups to required inspections and repairs - Septic Solutions handles everything you need in King County
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Emergency Septic Services
Our Emergency Septic Service is here to provide prompt and reliable solutions when you need them most. Whether it’s a sudden system failure, backups, or leaks, our team of experts is available 24/7 to quickly diagnose and resolve any septic emergency. We ensure minimal disruption to your property while restoring your system to full functionality. Count on us for fast, efficient, and professional service in critical situations!
Septic Pumping
Regular pumping is the heartbeat of a healthy septic system. Our team employs advanced equipment to thoroughly remove waste, keeping your system free of buildup and ensuring it operates at peak efficiency. We also inspect the tank for potential issues during every pumping, helping you avoid costly surprises down the line.
Full or partial system repairs
When your septic system isn’t functioning properly, it’s not just inconvenient—it’s potentially hazardous. We specialize in diagnosing and repairing every aspect of your system, no matter the scope. Our solutions are designed not just to fix immediate problems but to address underlying causes, giving you peace of mind and a reliable system for years to come.
Septic System Installations and upgrades
We craft septic systems designed to harmonize with your property’s unique landscape and usage demands. Our process blends cutting-edge digital design tools with meticulous engineering to ensure optimal placement, environmental compliance, and long-lasting functionality. Whether it’s a new build or a system replacement, we focus on creating systems that enhance property value while reducing long-term maintenance needs.
Septic System Maintenance
Proper maintenance is the key to prolonging the life of your septic system. We offer comprehensive maintenance plans that include regular inspections, cleaning, and performance checks. By staying ahead of wear and tear, we help you avoid costly repairs and ensure your system continues to operate efficiently.
Sewer Line Cleaning and Repairs
Clogged or damaged sewer lines can disrupt your entire plumbing system. We use advanced technology, such as hydro jetting and camera inspections, to clear blockages and pinpoint issues. Our targeted repairs restore the integrity of your sewer lines while minimizing disruption to your property.
Real Estate Septic Inspections
A septic system is a significant component of any property’s infrastructure. Our detailed inspections provide buyers and sellers with a clear understanding of the system’s condition, from tank health to drainfield functionality. We ensure compliance with local regulations and provide actionable insights to guide your real estate decisions.
Septic System Troubleshooting
When your septic system isn’t performing as expected, we dig deeper—literally and figuratively. Our experts analyze every component of your system, using diagnostic tools and years of experience to identify inefficiencies, blockages, or damage. We don’t just find problems; we provide customized solutions.
Drainfield Repair and Installation
A healthy drainfield is critical for effective wastewater treatment. We assess and repair failing drainfields, ensuring proper percolation and environmental protection. For new installations, we design systems that integrate seamlessly with your property while meeting all regulatory requirements.
Control Panel and Pump Repairs
The control panel and pumps are the brains and muscles of your septic system. We repair and recalibrate these essential components to ensure consistent and efficient operation. Our work extends beyond repairs; we also offer upgrades to more advanced systems for greater reliability.
Grease Trap Cleaning
Grease traps are the unsung heroes of commercial kitchens, preventing fats, oils, and grease from clogging pipes. We clean and inspect your grease traps thoroughly, ensuring compliance with health and safety regulations and preventing costly plumbing issues.
What King County Homeowners Say About Working With Us
Frequently Asked Questions About Finding Septic Records in King County
We search both King County databases - OnlineRME and the ArcGIS Septic Records app - pull your as-built drawings, permits, and service history, send everything to your email, and call to walk you through what we found. No charge for any of it. No obligation, no pressure.
Most searches are done within one business day. Checking both databases actually improves our chances of finding records that might not appear in just one system. For older properties in Enumclaw, Black Diamond, or on Vashon Island where records may be in physical archives, it can take a bit longer. We'll always let you know what we found.
Leave a request with the property address and we'll check both King County databases for the full inspection and service history. One thing to know: in OnlineRME, updated inspection reports are sometimes filed under Application History in the Time of Sale section, not in the main records view. In King County, septic inspection at the time of sale has been required by law for years - it's not a new rule like in neighboring Snohomish County.
King County has required septic inspection before every property sale for years. You'll need a current as-built drawing, service history from both OnlineRME and the ArcGIS app, and a fresh inspection report. We help you locate all of that documentation and, if needed, schedule the required inspection.
The first step is the as-built drawing in King County's databases - we find it for you at no charge and send it with an explanation. If the drawing is missing, or the property has changed since the system was installed, we send a certified technician to locate the system on-site. For properties with no records in either database, we contact Public Health - Seattle & King County directly.