How To Find Your Septic Tank Location Thurston County? (TOP 5 Tips)

Go under the house and look where the sewer pipe exits the foundation. The septic tank is usually within 10 feet of the foundation.

• To locate your well/septic system or to find out more information about it please contact Thurston County’s Environmental Health department. Phone Number: 360-754-3355 Extension: 2676 Websites: Septic Systems

Are septic tank locations public record?

Contact your local health department for public records. These permits should come with a diagram of the location where the septic system is buried. Depending on the age of your septic system, you may be able to find information regarding the location of your septic system by making a public records request.

How do you figure out where your septic tank is?

How to Find Where Your Septic Tank is Located

1. Consult a Septic Tank Diagram or Map. This is the easiest way to find your septic tank, as it will indicate exactly where the tank and drain field is located on the property.
2. Follow the Sewer Outlet Pipes.
3. Search Your Yard.
4. Ask.

How far is septic tank from house?

Requirements vary from one area to another, but the normal minimum distance from the house is 10 feet. If you’ll be using a private well for drinking water, however, note that many state departments of health require a minimum of 50 feet between a new septic tank and a well, according to APEC Water.

How do you find a metal detector with a septic tank?

6 Steps to Locate a Septic Tank

1. Find Your Main Sewer Drain Line. Sewage from your toilets, sinks, and showers collects into a main drain line.
2. Check Permits and Public Records.
3. Determine Septic Tank Material.
4. Time to Dig.
5. Mark the Location for Future Maintenance.

Do I have to change my septic tank?

Under the new rules, if you have a specific septic tank that discharges to surface water (river, stream, ditch, etc.) you are required to upgrade or replace your septic tank treatment system to a full sewage treatment plant by 2020, or when you sell a property, if it’s prior to this date.

How often should a septic tank be pumped?

Inspect and Pump Frequently The average household septic system should be inspected at least every three years by a septic service professional. Household septic tanks are typically pumped every three to five years.

Does shower water go into septic tank?

From your house to the tank: Most, but not all, septic systems operate via gravity to the septic tank. Each time a toilet is flushed, water is turned on or you take a shower, the water and waste flows via gravity through the plumbing system in your house and ends up in the septic tank.

Can I build a deck over my septic tank?

You should never build a deck over a septic field; doing so will prevent the natural draining and dissipation of the effluent. This can ruin the septic system, not to mention releasing foul smells into the air all around your deck. The dissipating effluent can also rot the deck from underneath.

How deep should a septic tank be?

Septic tanks are typically rectangular in shape and measure approximately 5 feet by 8 feet. In most cases, septic tank components including the lid, are buried between 4 inches and 4 feet underground.

Can you use a metal detector to find sewer lines?

Using a Plumbing Pipe Detector to Locate Underground Pipes. As a property owner there will be times when, for a variety of reasons, you will need to locate underground metal objects. For example, using a pipe locator metal detector you can easily pinpoint leaking underground pipes quickly.

Are septic tanks metal?

Steel Septic Tank—Steel septic tanks are the least durable and least popular tank option. Designed to last no more than 20-25 years, they can be susceptible to rust even before that. Steel top covers can rust through and cause an unsuspecting person to fall into the tank.

Are septic tanks made of metal?

The majority of septic tanks are constructed out of concrete, fiberglass, polyethylene or coated steel. Typically, septic tanks with a capacity smaller than 6,000 gallons are pre-manufactured. Larger septic tanks are constructed in place or assembled on-site from pre-manufactured sections.

Septic Systems (Onsite Sewage Systems)

• Drinking WaterWells
• Environmental Services
• Fees, Forms, Permits
• Food Safety
• Garbage DumpingComplaints (Solid Waste)
• Gardening
• Hazardous Waste
• Health CodesRegulations
• Healthy Home Environment
• Integrated Pest Management (IPM)
• PublicationsBrochures
• Rodents, Bats, Insects, and Other Vectors
• Scatter Creek Aquifer Septic Management Project
• Scatter Creek Aquifer

• Wells for Drinking Water
• Environmental Services
• Fees, Forms, and Permits
• Food Safety
• Garbage DumpingComplaints (Solid Waste)
• Gardening
• Hazardous Waste
• Health Codes and Regulations
• Healthy Home Environment
• Integrated Pest Management (IPM)
• PublicationsBrochures
• Rodents, Bats, and InsectsOther Vectors
• Scatter Creek Aquifer Septic Management Project
• Scatter Creek

• Prevention of disease
• Social Services
• Thurston Thrives
• Disease Control and Prevention

Environmental Health professionals are available to answer concerns concerning land use, septic systems, and wells at the Building Development Center from 8 a.m. to 4:00 p.m., Monday through Friday, excluding holidays. For more contact information, please see the following link. Permit Information Currently Available Check the current permission status for Septic and LanduseProjects by entering the project name and address. Historic Septic Permit Information in Oregon To finish the search, you will need your permission number, project number, or parcel number.

• In this section, you will learn about septic system basics, the drainfield, inspecting your septic tank, septic system dos and don’ts, and special conditions.

• You may find a DIY Septic System Inspection Video, Field Guide, and Checklist at the bottom of this page to aid you in examining your system.

Learn about the many types of septic systems available today.

• Mound System
• Sand Filter System
• Aerobic Treatment Unit (ATU)
• And other components.

• Various Other Systems (Proprietary) Please refer to the Washington State Department of Health document titled “List of Registered On-Site Treatment andDistribution Products” for the most up-to-date information on proprietary sewage products permitted by the state of Washington.

Requirements for properties with on-site sewage systemswhen sold or transferred.more

• Thurston County Septic System Professionals who are certified to provide services in the county – Link to New Webpage
• Information for Septic System Professionals:

• Certified Monitoring Specialists
• Designers and Installers
• Installers
• Certified Monitoring Specialists

Thurston County requires certain types of septicsystems to have Operational Certificates. Find out whatis needed to renew the certificate. moreAdministers several low-interest loan and grantprograms to help residents who live in shellfishprotection areas or need financial assistance tomaintain existing systems and repair failingsystems. moreIssues permits for new septic systems or whenrepairs to an existing system are needed.Currently under construction.List of publications, workshops, and otherinformation for septic system owners. moreFind the answers to common questions. moreLink to FinalReport

• Time of Transfer Application
• Time of Transfer FAQ’s

• NEW 2022 FEE SCHEDULE
• 2021 Environmental Health Fee Schedule
• SepticSmart
• BuildingDevelopmentCenter(BDC) Hours
• Henderson WPA Septic O M Program
• Henderson Response Plan(7-12-19)

• The Code Enforcement – Article IV
• Flood-Related Health Issues
• OSS Tank Pump Out Report – ElectronicSubmission Only: $15
• Flood-Related Health IssuesCleanup Guidelines

• Request for Record Drawing/Permit Information
• Installer Construction Completion Form
• Onsite Sewage System Abandon Application
• Request for Record Drawing/Permit Information

How welldo you know your septic?TAKE A QUIZ

contacts

• Failing Systems360-867-2673
• Loan Program(failing systems only)360-867-2628
• BrochuresWorkshops360-867-2626
• Septic Help Line360-867-2669(leave message)
• General Questions360-867-2673Email
• Henderson Watershed Protection Area O M Questions360-867-2626Email
• Building Development Center360-786-5490
• BrochuresWork

Thurston County

• Septic systems that are failing are a public health hazard. If it is discovered that the septic system is failing, it must be treated as soon as possible. Sewage backing up into the building, sewage surfacing on the ground, and a leaky sewage tank are all examples of common failures. Environmental Health’s Compliance Section will investigate any system that is discovered to be malfunctioning, which may result in the issuance of a Notice of Violation. The following are examples of deficiencies that should be addressed but are not immediately repaired: missing or broken inlet/outlet baffles, malfunctioning pumps, broken monitoring ports, clean-outs or risers
• Systems that are not properly sized for the number of bedrooms in the residence
• And systems that are not properly sized for the number of bedrooms in the residence. Permit applications and needed Operational Certificates, on the other hand, may be delayed until the flaws are addressed. The Evaluation Report shall include a list of significant and minor defects, as described in Article IV of the Sanitary Code, as well as recommendations for improvement. If the errors are remedied in accordance with the requirements, a new Time of Transfer Application with the appropriate price can be submitted within twelve months of the prior report issue date, and an updated report will be provided

Thurston County

Questions and Answers about Septic Systems

General Questions

• The design of septic systems is such that they may provide long-term, effective treatment of residential waste if they are properly handled and maintained. The majority of systems that fail prematurely, on the other hand, are the result of poor maintenance. Plumbing issues are often of a less serious nature (such as pipe blockages from tree roots growing into the pipe). Even while septic tanks are quite resilient, they can decay or develop other structural issues from time to time. Having a blocked drainfield is one of the most dangerous problems you may have. Unfortunately, this is the most expensive of the repairs to complete. Once the absorption field becomes blocked, it must be changed, which may be quite expensive, costing thousands of dollars. Detailed instructions may be found atSeptic System Operation and Maintenance.

• We offer a large number of booklets and brochures available for download or to be mailed to you (Thurston County residents only, please). In addition, we provide free septic seminars in the autumn. Please contact us through email or phone at 360-867-2626 if you require more information.

• Is it possible for my septic system to poison my well? Alternatively, neighboring streams and water bodies might be used.

• It is possible, especially if the effluent is not effectively treated, as in the case of a failing system. Untreated effluent is a health issue that has the potential to cause a variety of human ailments. If this untreated effluent gets into the groundwater, it has the potential to poison your well and the wells of your neighbors. It is also possible that shellfish beds and recreational swimming places will be affected if this sewage reaches neighboring streams or water bodies.

• Can you tell me whether there is financial assistance available for failed systems or repairs?

• In order to assist individuals who live in shellfish protection zones or who require financial assistance to maintain or repair failing septic systems, Thurston County Environmental Health offers low-interest loan and grant programs. To obtain a summary of the services that are available, visit Septic System Financial Assistance.

• What is the best way to determine if a home’s septic system is in excellent functioning condition when purchasing a home?

• The Thurston County Health Department must provide a Time of TransferEvaluation Report prior to the sale or transfer of a property with an on-site sewage system (septic system) in accordance with county laws before the property may be sold or transferred. Protection of public health is a priority, as is evaluation of all septic systems, identification of and repair of malfunctioning systems, as well as making records available to the general public. In accordance with this criteria, it became effective on September 1, 2010. A septic system review may be conducted by a professional who is knowledgeable in septic systems. Thurston County is also able to provide this service for an additional cost. In the assessment, you may find information such as a system record sketch, the size and age of the system, maintenance history (if available), and the status of system components, such as the tank and drainfield.

• What information do I need to know before purchasing a construction lot for a new home?

• Setbacks and other restrictions for septic tanks and drainfields should be checked with the Thurston County Building Development Center, 360-786-5490, before construction. Ascertain whether the septic system, replacement area, and drinking water well, if any are required, will fit within the confines of the property. The soil parameters must be determined since the quantity of sand, silt, and clay present in the soil has an influence on the drainfield. Because there are other additional concerns, such as the slope of the ground, the risk for flooding, if the property is in a wetlands region, and its proximity to water bodies, it may be essential to seek the assistance of a specialist.

• Do you know how to educate your tenants if you have a rental property?

• How can I educate my tenants if I own a rental property?

• Are there any further conditions of usage that I should be aware of? Similarly to a holiday rental

• Is there anything more I should be aware of when it comes to using this? As an example, a holiday rental property.

Maintenance Questions

• Septic tanks should be drained every 3-5 years, according to our recommendations. When pumping is required, however, it is determined by the quantity of scum and sludge that has accumulated over time and has refused to disappear without the use of a pump.

• If the amount of scum and sludge in the tank is equivalent to one-third of the overall depth of the tank, the tank should be pumped. Inspecting the septic system will involve taking measurements of the scum and sludge levels to determine whether or not any tanks need to be flushed. If your system qualifies, you may enroll in the self-inspection classes, which will teach you how to measure the scum and sludge in your tank and determine whether or not your tank requires pumping.

• Is it possible to detect if a tank needs to be pumped without having to dig it up?

• If you do not have risers placed, you will have to dig up the ground above the septic tank in order to check it properly. Risers provide for simple access to the septic system while minimizing disturbance to the soil surrounding the tank. Additionally, by keeping maintenance records, you may have it pumped on a regular basis depending on the rate of solids accumulation in the previous year’s records. An 1150-gallon septic tank utilized by a household of four with little rubbish disposal has to be pumped approximately every three years.

• Alternatively, you may look for a list of countycertified pumpers and monitoring specialists on our website or in your phone book under the heading “Septic Tanks Systems – CleaningService.”

• Pumping might cost anything from $350 to $1,500. Because rates vary, obtain quotes from a number of different pumpers, being careful to inquire about the amount of gallons included by each estimate. IMPORTANT: An average tank holds 1150 gallons.

• The Thurston County Building Development Center has a copy of your system’s record drawing (formerly known as “as-built”), which is a schematic indicating where your system components are placed and which shows where your system components are on file (BDC). You may obtain more information by contacting the BDC at 360-786-5490 or by downloading the Request for Record Drawing/Permit Information form. The Olympia Business Development Center is situated at 2000 Lakeridge Drive SW on the second level of Building 1. Please have your eleven-digit tax package number ready when you phone or come in for a visit. This is the tax identification number that appears on your county tax bills. For more information, contact the County Assessor’s office. (If you do not know your tax parcel number, contact the County Assessor’s office.) Finding the septic tank may also be accomplished by probing it with a metal rod and following the pipeline leading from the home until you locate the tank.

• Maintenance, maintenance, and more maintenance! You are responsible for the rest of the process if your system has been correctly planned, sited, and installed. Pump on a regular basis, limit your water use, and be mindful of what you flush down the toilet and down the drain. Septic System Operation and Maintenance is a good source of extra information.

• What happens if a septic system fails to function properly? In what ways can I know if my system isn’t working properly?

• Typically, when a septic system fails, it is because the drainfield is not operating correctly. Septic tank overflows can cause the effluent to pour into the drainfield, which can cause the pipes to get clogged. Sinks and toilets in the house become backed up as a result of this. Among the other indicators include slow-draining toilets and drains, a foul smell emanating from the drainfield, a puddle on or near the drainfield, and tainted well water. Contact Thurston County Environmental Health at 360-867-2673 for assistance if you believe your septic system is failing

• Septic tanks are mostly comprised of settling chambers. They provide sufficient time for particles and scum to separate from wastewater, allowing clean liquid to be properly discharged to the drainfield. Over time, the scum and sludge layers thicken, reducing the amount of space and time available for waste water to settle before it is discharged into the drain field. Septic systems are limited in their ability to treat a given volume of water. Because for every gallon of water that enters the tank, one gallon of water is forced out into the drainfield, an excessive amount of water may back up into your home or overwhelm the drainfield and surface in your yard. The concern is that enormous volumes of water may not provide sediments with adequate time to settle before being taken out to the drainfield, resulting in blockage of the pipes. Indoor Water Conservation and Every Gallon of Water You Save, Saves You Money are two resources for water conservation advice.

• It has been brought to my attention that I should not use a waste disposal. What is the reason behind this

• The regularity with which garbage is disposed of has a significant influence on pumps. Food particles are typically not digested by the bacteria and instead build as scum in the tank. If a high volume of water enters the tank, it may drive the food particles into the drainfield, resulting in blockage of the drainfield. If you must use a waste disposal, you should have your tank pumped on a more regular basis.

• Is it necessary to be cautious about what I flush down the toilet?

• The answer is yes, many of the items that are flushed down the toilet do not degrade and remain in the toilet tank. In addition to using a trash disposal only when necessary (see question above), avoid pouring grease, fats, and oils down the drain, as well as placing coffee grounds and egg shells in the disposal or down the sink drain. Prevent chemicals from entering your system. Minimize Garbage Disposal (SOLID WASTE) – What you flush down the toilet can have a significant influence on the performance of your septic system. Many things do not breakdown properly, and as a result, they accumulate in your septic tank. If you have the option of disposing of it in another manner rather than putting it into your system, do so.

• Only human waste and toilet paper should be flushed down the toilet
• Do not flush dental floss, cat litter (including “flushable” varieties), hair, Kleenex, cigarette butts, cotton swabs, feminine hygiene products, condoms, paper towels, static cling sheets, diapers, or disposable wipes
• And do not flush any other items.

• It is not essential to add a stimulant or an enhancer to a septic tank in order to assist it in functioning or “to restore bacterial equilibrium.” Human feces already include the naturally occurring bacteria that are required for the proper operation of the septic system. As stated by the United States Department of Health and Human Services, none of these items completely eliminates the need for periodic maintenance and pumping.

• Is it necessary to obtain a permit in order to make repairs to my septic system
• And

• Minor repairs such as repairing baffles, sealing fractures in the tank, and removing roots do not necessitate the acquisition of a permit. For further information, contact your septic specialist or call our office at 360-867-2673 or 360-867-2626. Yes, it is possible. A permit will be necessary for major repairs such as the replacement of a septic tank and/or drainfield, as well as the replacement of a d-box. For further information, you may either download the permit application from Development Services (both aMaster Application and aSupplemental Application are required) or call the Thurston County Building Development Center (BDC) at 360-786-5490 for assistance. The Olympia Business Development Center is situated on the second floor of Building 1 at 2000 Lakeridge Dr. SW.

Drainfield Questions

• In this location, there is potential for the replacement or expansion of the drainage system. It must fulfill the same requirements as a typical drainfield, such as suitable soils, setbacks, and so on, and it must be covered in the same manner as a regular drainfield. Additional information can be found at The Drainfield.

• What can I plant over my drainfield and septic tank to make them more effective?

• Drainfields benefit greatly from the presence of grass. Grasses can be used as a decorative plant, groomed in a standard lawn, or left unmowed in a meadow setting. Alternatively, groundcovers and ferns can be used (for specific plants, seeLandscaping Your Drainfield). Choose shallow-rooted plants that require little upkeep and require less water to thrive. Keep in mind that if you have plants over septic tanks and do not have risers placed, you will need to dig up the ground to access the tanks for inspection and pumping – which should be done every 3 to 5 years on average.

• What is the maximum distance that trees and plants can be from the drainfield

• A minimum of 30 feet between your drainfield and any trees or large plants should be maintained. Keep in mind, however, that particular soils may necessitate plants to be further apart than others. If you want to plant trees near a drainfield, speak with an expert who can decide the best sorts of plants to use and the appropriate spacing between them based on your soil. In most cases, trees and bushes have vast root systems that seek out and develop into moist regions, such as drainfields
• However, this is not always the case.

• Is it permissible to grow a vegetable garden over my drainfield?

• No, it is not advisable to grow vegetables over a drainfield. Watering vegetables is necessary, because too much water in the soil diminishes the soil’s capacity to handle wastewater. Some plants have strong roots that might cause damage to drainfield pipes. In addition, bed preparation techniques such as rototilling and extensive digging can cause pipe damage. Additionally, there is the possibility of sewage polluting food crops.

• If there is landscaping plastic or fabric under the mulch, may that be used to cover the drainfield as well?

• If there is landscaping plastic or fabric underneath the mulch, may that be used to cover the drainfield?

• Is it possible to construct a carport or camping pad over the drainfield? Consider adding a tennis court or a hot tub to your property.

• It is permissible to construct a carport or camping pad on top of the drainfield. A tennis court or a hot tub would be nice.

• Is it possible to construct a carport or a camping pad over the replacement area? Consider adding a tennis court or a hot tub to your property.

• If you need to repair or replace your drainfield in the future, you should leave the designated drainfield replacement area (reserve area) undeveloped and protected from compaction.

• Is it okay for cattle to graze on the drainfield? Let’s say you just want one horse.

• It is recommended that livestock be kept away from drainfields. During the winter, cattle tramples and muddy the soil
• During the summer, they compress it even further. As previously stated, this is detrimental to the soil’s ability to exchange oxygen. Please accept my apologies
• Even one horse is not suggested.

• Are there any issues with the rainwater being routed onto my drainfield

• ​Yes. Whenever possible, rainwater from hard surfaces such as driveways and patios should be directed away from the septic tank and drainfield. A shallow trench uphill from a drainfield can assist in diverting water away from the drainfield.

• Is it possible to construct a sprinkler system in close proximity to the drainfield?

• It is recommended that water lines be at least 10 feet away from all components of the septic system. Make certain that all sprinkler lines are equipped with backflow protection devices that have been authorized.

• Can I install a retaining wall and drains in that area as well

• If you plan to install drains (interceptors, French drains, or curtain drains) or retaining walls within 30 feet of any section of your septic system, you must first obtain permission from the Thurston County Environmental Health Department (360-867-2673). Drainfields should never be cut through for the purpose of installing drains, walls, or irrigation lines. French drains are known for transporting sewage pollution from septic systems onto bodies of water or public roads.

Thurston County

Please consult with the Thurston County Environmental Health Department if you plan to install drains (interceptors, French drains, curtain drains, etc.) or retaining walls within 30 feet of any portion of your septic system (360-867-2673). Drainfields should never be cut through for the purpose of installing drains, walls, or irrigation systems. It is well known that French drains are capable of transporting pollutants from septic systems into bodies of water or roadways.

1. Having property in the HendersonORNisqually Reach Watershed Protection Area
2. Having one of the following types of septic systems:

• Gravity with conventional gravity
• Pressure distribution
• Mound
• Glendon® Biofilter
• And other factors.

1. Access to a computer in order to view films, take tests, and submit inspection reports on the internet

Training is provided through online videos, an online exam, and in-person field test review sessions. When: Instructions are emailed to participants on the 15th of each month. By the 15th of the next month, you must be through with the procedure. Where: The Public Health Building, 412 Lilly Road NE (near St. Peter’s Hospital) will host the in-person training. PLEASE NOTE: Because the session will be held outside, please dress appropriately and bring an umbrella. Attendees will get the following items:

• Refresher training is provided through online videos, an online exam, and in-person field tests. When: Instructions are emailed to participants on the 15th of each month, unless otherwise specified. By the 15th of the next month, you must be finished with the procedure. Where: The Public Health Building, 412 Lilly Road NE (near St. Peter’s Hospital) will host the in-person training sessions. Please remember that the lesson will be held outside, so dress appropriately and bring an umbrella. Following are the items that will be distributed to attendees:

Call Susan at 360-867-2645 if you want to register or if you want to find out whether you are eligible. The principles of living on a septic system are taught in a series of workshops held across Thurston County each September by our Public Health Educators (PHE). Please keep checking back with us to find out when the next session will be taking place. In the meanwhile, here is a link to our Publications and Brochure s, where you can discover information on how to care for your type of septic system as well as other useful information: septic systems.

Thurston County

This is the new Public HealthSocial Services web site, which is currently under construction at the time of publication. There are only a few web forms and the Treatment Sales Tax software that have been transferred to this new site. More information will be available shortly!

​Quick Menu of Popular Links – Environmental Health

• Drinking Lake Water
• Purging Your Plumbing – Drinking Lake Water
• Volunteer Form
• Summit Lake
• Algae Advisories

Drinking Water

• Determine the location of your drainfield (record drawing/asbuilt request)

Septic Professionals Lists

• The Septic System Pumper List, the Septic System – Installer List, the Septic System – Designer List, and the Septic System – Monitoring Specialists are all on the same page as each other.

Septic System Repairs – Loans, Grants, and Rebates

• Riser Rebate for Septic System Risers, Craft3 CW Brochure, and Septic System Risers The grant will cover the cost of a septic system pump, inspection, and minor repairs

Popular Web Pages

Thurston County Public Health and Social Services provided the following information:There are about 53,000 septic systems in Thurston County, which process 12,000,000 gallons of sewage per day. In order to ensure that our lakes, rivers, streams, and Puget Sound remain healthy, as well as that our drinking water is safe today and in the future, it is critical that those septic systems be maintained on a regular basis. Taking good care of our septic systems may help keep our families and communities safe from illnesses that can be spread by untreated sewage.

According to the following factors: how many people reside in the home, how large the septic tank is, the soil type, how much water is used in the home, and what goods are flushed down the toilet, most septic tanks need to be pumped once every three to five years.

In order to keep your septic system in good working order, you should consult with a septic specialist in order to establish a regular pumping plan that is convenient for your family. (

Ways to Protect Your System

In addition to doing regular inspections and pumping your system as necessary, there are several simple things you can do to protect your system:

• Make certain that only toilet paper is flushed down the toilet
• Prevent the use of bleach and other potentially harmful cleaning agents in order to ensure that your septic tank continues to function properly for many years to come. The majority of your cleaning needs may be met with baking soda and vinegar. Products with the words “danger” or “poison” on the label should be avoided. Conserve water in order to extend the lifespan of your on-site septic system. Approximately one gallon of water each gallon of water that leaves the home through the bathroom, kitchen, or laundry settles in the septic tank and forces another gallon of water out into the drainfield for treatment. Conserving water will ensure that your tank and drainfield continue to operate at their peak performance for as long as feasible
• And Understand the locations of all of the major components of your septic system. Never park or drive machinery over them, feed animals on them, garden on them, or construct anything on top of them. Alternatively, you can call the Thurston County Environmental Health permit support center at 360-786-5490 to get a record drawing of your system and the maintenance records: To find out more, you may attend a free class.

During the month of September, Thurston County Public Health will be conducting four free workshops to provide basic information on routine care and maintenance. During this presentation, we will discuss how septic systems function, how to find a professional, and give take-home information, as well as a $10 discount for your next septic pumping appointment. Jennifer Johnson may be reached at [email protected] or 360-867-2674 if you have any questions or would like to sign up for the event.

to 9:00 p.m.

The McLane Fire Station, located at 125 Delphi Road NW in Olympia, will be open on Wednesday, September 19.

Griffin Fire Station, 3707 Steamboat Loop NW, Olympia, Washington, on Thursday, September 27

Your access to this site has been limited by the site owner

During the month of September, Thurston County Public Health will provide four free seminars to provide basic information on routine care and maintenance of vehicles. During this presentation, we will discuss how septic systems function, how to find a professional, and give take-home information, as well as a $10 voucher for your next septic pumping. Jennifer Johnson may be reached at [email protected] or 360-867-2674 if you have any questions or would like to sign up. Saturday and Sunday evening workshops are held from 7:45 to 9:00 pm.

Olympia Waldorf School is located at 8126 Normandy Street SE in Olympia, Washington.

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Groundwater and Septic Tanks in Marysville

Superior Septic Service, LLC keeps an eye on the news for information on septic services around the state and the country. Keeping your groundwater and septic tanks in Marysville out of the news is something we would want to do. Something as mundane as a septic tank might not seem to need attention, but in Thurston County, septic tanks have emerged as a significant source of worry. It was reported in a news item that aired on K5 in November 2014 that there are more than 17,000 septic tanks associated with growth in Olympia, Turnwater, and Lacey.

• Several homeowners have been awarded grants to assist them in connecting to a sewage main – a project that has cost millions of dollars to complete.
• Even just for the 128 properties that have been identified as having received funds, this represents a staggering sum of money.
• The funds in Thurston County are provided based on the location of the property – those in water protection areas are given first consideration – as well as the financial necessity of the family applying.
• Not everyone has the means to come up with $40,000 in one fell swoop.
• We have a vested professional interest in assisting you in keeping your groundwater and septic tank in Marysville in proper working order.

Give us a call at (425)905-2485 immediately to schedule an inspection of your tank and an estimate for any necessary repairs.

Types of Septic Systems

Distribution of Gravity and Pressure MoundSand Filter is a type of sand filter. Other TypesOlder Versions Various types of septic (on-site sewage) systems exist, each with their own set of advantages and disadvantages. Because the soil and water conditions on a site might differ, many methods are available. It is critical to understand the sort of system you have in order to effectively maintain it. Learn more about the sort of system you have — It is possible to obtain information on your septic system if you live in one of the counties listed above: Clallam, Clark (including Island), Jefferson (including King), Kitsap (including Pierce), Skagit, Skamania, or Thurston (including Clallam).

Gravity System

Septic tanks, drainfields, and the soil underlying the drainfield are the three main components of a gravity-based system. An adequate depth of native appropriate soil under the drainfield is required for a gravity system of at least 3 feet.

How a Gravity System Works

Because heavy materials settle to the bottom of the septic tank when wastewater flows from the home into it, a sludge layer is formed on the bottom of the tank as wastewater flows into it through the input baffle. Lighter materials, such as oil and grease, float to the surface, producing a scum layer on the surface of the water. The wastewater liquid in the centre of the system is channeled via the outflow baffle and into the next component of it. Regarding the baffle for the outlet:

• If your system does not already have one, you should consider adding an output baffle filter to your system. Designed to be installed in the outflow baffle of your septic tank, these filters provide a second layer of protection against suspended particles from entering the drainfield. Maintain your filter on a regular basis, at least once every 6 to 12 months. If your filter has a concrete baffle, you could consider hiring someone to retrofit a plastic baffle in its stead. Because of the presence of corrosive gases in septic tanks, concrete baffles are prone to degradation. A filter may be simply fitted on a plastic outlet baffle
• However, it is not recommended.

Distribution boxes (d-boxes) are commonly used in gravity systems to ensure that wastewater is distributed uniformly into each lateral pipe in the drainfield. Following collection in the lateral pipes, wastewater runs out of tiny holes into a gravelled trench, where it finally reaches the earth. Bacteria that thrive on oxygen and other microorganisms clean up wastewater by eliminating pathogens from it. The importance of this final stage of treatment in safeguarding groundwater and surface water cannot be overstated.

• A brochure entitled Understanding and Caring for Your Septic Tank System (PDF) is available for download.

Pressure Distribution System

Septic systems with pressurized chambers take treated wastewater from the septic tank and store it in a holding tank. When the soil and site characteristics necessitate controlled dosing, such as when there is only 2-3 feet of native appropriate soil beneath the drainfield, a pressure distribution system is employed. A pump, pump control floats, and a high-water alert float are all included within the pump chamber. Pump activity can be regulated either via the use of control floats or through the use of timed controls.

How a Pressure Distribution System Works

Wastewater is discharged from the septic tank and flows into the pump compartment. It is positioned on the floor of the pump chamber, which is where the pump itself is located. Inside the chamber, there are floats that are utilized to regulate the pump’s operation. The On/Off float activates the pump when the level of wastewater reaches a certain threshold. The pump distributes the wastewater across the drainfield lines in an even distribution. When the amount of wastewater within the pump chamber falls below a certain point, the pump is turned off to allow the drainfield soil to absorb the wastewater.

Put the alarm on hold and contact a licensed professional right away. It should be noted that not all pump tanks are equipped with a float system. Some systems, rather than using On/Off floats, employ a timer control panel.

• The following publications are available in PDF format: Understanding and Caring for Your Pressure Distribution System (PDF)

Mound System

In this case, the mound is a drainfield bed that has been elevated above the natural soil surface using a specified sand fill material and then filled with suitable cover soil. They can be employed in situations where there is just one or two feet of native appropriate soil available. Within the sand fill is a gravel-filled or gravelless chamber bed, which is connected to the rest of the structure by a network of tiny diameter pipes.

How a Mound System Works

The pump distributes wastewater to the mound drainfield bed in regulated dosages, ensuring that it is distributed evenly throughout the pipes. Under low pressure, wastewater escapes from the pipes via the small holes in the pipes and trickles downward through the gravel, eventually reaching the specific sand fill. As the wastewater flows through the sand and into the natural soil, it is cleaned by microorganisms.

• Understanding and Caring for Your Mound System (PDF)
• Understanding and Caring for Your Mound System (PDF).

Sand Filter System

Sand filters are typically constructed of PVC or concrete boxes that are filled with a specified sand fill material. A network of tiny diameter pipes is laid in a gravel-filled or gravelless chamber bed on top of the sand, and the pipes are connected to each other. They can be employed when there is just 1.5 feet of native, appropriate soil under the receiving drainfield, which is the most common situation.

How a Sand Filter System Works

The pump tank distributes wastewater to the sand filter box in regulated dosages, allowing it to be distributed evenly throughout the system. The wastewater exits the pipelines and trickles downward into the gravel, where it is treated as it passes through the sand filtering system. It is collected and sent to a second pump chamber, where it is discharged to a pressure distribution drainfield or a gravity flow drainfield, depending on the kind of wastewater treatment. The second pump chamber may be situated in the sand filter box, depending on the configuration.

• Learn more about your sand filter system with this brochure: Understanding and Caring for Your Sand Filter System (PDF).

Other Types

Learn more about your sand filter system with this brochure: Understanding and Maintaining Your Sand Filter System (PDF).

Aerobic Treament Unit (ATU)

It is possible to utilize aerobic treatment units as a pretreatment device in locations where there is at least 1 to 1.5 feet of native appropriate soil underneath the receiving drainfield. A blower, also known as an aerator, introduces air into the ATU, so increasing the aerobic microbial activity. This sort of unit will frequently necessitate the use of a disinfectant such as chlorine or ultraviolet light treatment before the wastewater may be discharged into the drain field. An ATU is required to be examined by a manufacturer-certified representative and/or a representative of the local health jurisdiction at least once a year, and in some cases more frequently, by a representative of the local health jurisdiction and/or the manufacturer.

BioFilter

BioFilters are developed and placed on locations where there is as little as one foot of native, appropriate soil available for the filter to function.

The product is self-contained and does not require the use of an extra drainfield-like component. Design, installation, and maintenance of these systems are all performed by BioFilter-approved specialists, according to the manufacturer.

Outdated Systems

Many different types of containers have been used as septic tanks in the past, and some of these containers may no longer be safe or effective. Prior to the 1970s, cinderblocks, wood, 55-gallon drums, and concrete were all acceptable materials for constructing septic tanks (manufactured or homemade). Concrete or steel tanks with a single compartment were prevalent from around 1965 to 1975. Metal tanks are prone to corroding and have been known to cave in. If you have an older system that was installed before to the 1970s, contact your local health agency to find out what sort of septic tank you have.

Cesspools

Older septic systems were occasionally constructed without the use of a septic tank to treat either a portion or all of the effluent. A cesspool is defined as untreated wastewater that is discharged straight into a bottomless tank. In some cases, this sort of system may satisfy the criteria of a failure, and it would be necessary to discard it and replace it with an entirely new septic system.

Seepage Pit

Septic tank wastewater is treated at the first phase of treatment before flowing into a bottomless chamber, known as a seepage pit, which is often several feet deep and has no bottom. At these depths, the necessary oxygen is not always present to complete the final treatment, enabling untreated wastewater to seep into the earth. This may fulfill the criteria of a failure, and the system would need to be abandoned and replaced with a new septic system to be considered successful. Contact your local health agency to determine whether your septic system is obsolete and to receive advise on septic system improvements or replacements.

Video – Types of Septic Systems

• Septic System 101: The Fundamentals of Septic Systems
• Taking Good Care of Your Septic System
• A video on how to inspect your septic system yourself
• Using the Services of a Septic System Professional
• Safety of the Septic Tank Lid
• Symptoms of a Failing Septic System

Septic System Maintenance

In this video, you will learn the fundamentals of septic systems. What You Should Know About Maintaining Your Septic System A video on how to inspect your septic system on your own Using the Services of a Septic System Expert; Safety of the Septic Tank Lid Early Warning Signs of a Failing Septic System

• Spending a few hundred dollars a year on maintenance is a bargain when compared to the thousands of dollars it would cost to repair or replace a failing septic system in the event of a malfunction. All of us save money when we have clean, safe drinking water. Maintains the health of you and your neighbors – Disease-causing bacteria and viruses, as well as excessive amounts of nitrogen and phosphorus, can be found in large quantities in household wastewater. A properly operating septic system aids in the removal of these contaminants, preventing well water and neighboring surface water from being polluted. Protects the Environment – Faulty septic systems may leak toxins, pollutants, and chemicals into the environment, which can have a negative impact on our drinking water as well as draining into the surrounding ecosystem. Protects the value of your property – Septic systems that are not functional or that are in poor condition may decrease the value of your home and may even become a legal problem. Further to this, even if your septic system may be functioning properly, we should be able to assume that everyone else is contributing to the preservation of all property values by ensuring that our Lake is clean and safe, both now and in the future.

Background – Summit Lake was the site of the final attempt at 100 percent OSS testing. Summit Lake OSS testing began in 1990, with the County’s objective of evaluating all systems. The program is still in operation today. All homeowners were obliged to have their OSS systems examined, with many of the tests involving a dye test to determine whether or not the OSS system was releasing nutrients into the lake. The County followed up to ensure that all of the failed systems that were in place in 1990 were repaired.

County OSS System Maintenance needs as of now are as follows: The size, complexity, and location of a septic system in Thurston County affect the amount of monitoring and maintenance that is required.

• In the Henderson and Nisqually Marine Recovery Areas, all systems are required to have valid, renewable certifications on file. The monitoring of more sophisticated systems must be performed by a trained monitoring professional. The monitoring needs for the remainder of the county are dictated by the size, complexity, and placement of the system. Complicated systems are subject to an annual renewal of their certification, and they must be monitored by an accredited monitoring specialist or accredited professional. Counties maintain records on these systems, and they notify owners when their certificates expire or need to be reissued. Non-complex systems, such as gravity systems, do not require certification and are subject to limited inspection by the county.

​ ​​These are general requirements for systems outside of Henderson and Nisqually. Full details are included in the County policy and septic system regulations.

sewage_systems_requiring_opc_onst.13.pol.808_1_.pdfDownload File

My septic system is of the sort described above. Types and categories of operational certificates.

• A monitored/most complex system requires a renewed operational certificate and must be monitored by a monitoring professional who has received specialized training. Certified Proprietary Treatment Products, drip line distribution systems, systems that contain disinfection units, and community systems (those with flows between 1,000 and 3,500 gallons per day) are examples of these systems. These are required to have a renewable operational certificate, which is complicated. Monitoring and maintenance can be carried out by qualified pumpers, installers, monitoring professionals, as well as by responsible management organizations (typically utilities). Sand filters, mounds, Glendon systems, holding tanks, remediation technologies, and community systems that do not rely on proprietary equipment are examples of such solutions. These do not necessitate the use of operational certifications and are hence non-complex. They are subject to minimal direct supervision by the county. Gravity and single-family pressure distribution systems are examples of such systems.

Refer to this file to see what type of system you have and when it was last maintained according to the county records.

ATTENTION: The County records are not perfect. This file contains the address of Summit Lake households who have maintained their systems but county records do not show this. Pleaseclickhere to be added to the SLWQ list. This helps us see progress!

What is the current number of systems that are maintained at Summit Lake? Certificate of Operational Capability Complex systems, such as those operated by the county, require annual renewals. Every three years, the vast majority of operational certificates must be renewed. The owner is liable for the cost of renewal (currently $130), as well as the costs of monitoring and maintenance. This includes evidence showing the system was properly examined and maintained, as well as proof of the correction of any defects that may have occurred.

1. The following are the County’s on-site septic system maintenance data for Summit Lake: Maintained Maintained Totalwithin 3 yearswithin 6 yearswithin 10 years Systems The Most Complicated 26 (90 percent ) 27 (93 percent ) Renewal of the operational certificate is necessary.
2. Non-Complex 82 82 82 (28 percent ) 115 115 115 115 (40 percent ) 288operational certificate is required.
3. In 2016, and 2017, the proposal was also suggested, however it was not financed.
4. Every three years, if this proposal is put into effect, all county residents would be expected to keep their OSS systems in good working order.
5. Why wait for the county to impose OSS maintenance requirements?
6. Please keep your systems up to date.
7. Maintenance Plan for the Community Septic SystemNext steps:

• In a letter written to the Thurston County Commissioners on June 30, 2017, county resources for OSS reporting and OSS maintenance training were requested, and the county agreed. July 2017 – Community outreach to encourage all residents to keep their OSS systems in good working order
• • Instruction on the best practices for using detergents and other goods that are intended for use in septic systems
• Throughout the year, provide updates on your development.

Installing Access Risers

In order to perform fundamental septic system maintenance, you must first evaluate the condition of your septic tank and pump chamber (if you have one), which can be time-consuming and labor-intensive if you do not have access ports known as risers. Consider the prospect of having to dig through two feet of dirt to check the oil on your vehicle. Installing septic tank risers for an off-site septic system is broken down into four steps, which are outlined below. Please keep in mind that the currentWashington State Coderequiresrisers for all septic systems, which means you may be forced to install one if you are asking for a construction permit, land division, or any other type of official action in the state.

A few safety tips before you get started:

• Struck by an underground electrical wire while excavating may be quite dangerous! If you are in any way doubtful about the presence of subterranean lines on your property, you can have them found by contacting 1-800-424-5555 or 811, or by visiting the website
• Use the buddy system to your advantage! Working with a partner is usually recommended since the fumes connected with open sewage can be dangerous and cause a person to go unconscious. Never leave a septic tank that is open unattended! Once the lids have been removed, exercise caution around the tank and keep dogs and children at a safe distance. Examine the structural integrity of your septic tank! If a septic tank is more than 20 years old, it is recommended that it be pumped to ensure that the tank’s structural integrity and water-tightness are not compromised. Instead of spending money on costly repairs, it is preferable to replace the tank with a contemporary septic tank that includes risers as part of the installation. A permit from your local Environmental Health department is required for the replacement of a septic tank.

Gather all the MaterialsTools You will Need

Hitting an underground electrical line while excavating may be extremely dangerous and even fatal. When in doubt about whether or not you have subterranean lines on your property, contact 1-800-424-5555 or 811, or go online to: Put your friends to work for you! Always work with a partner since the fumes connected with sewage exposure can be dangerous and cause a person to go unconscious. A septic tank that is open should never be left alone. Once the lids have been removed, use caution around the tank and keep dogs and children away from it.

The structural integrity and water-tightness of a septic tank should be checked every 20 years or so if it is more than 20 years old.

Instead of spending money on costly repairs, it is preferable to replace the tank with a contemporary septic tank that includes risers as part of the package. A permit from your local Environmental Health department is required before replacing a septic tank.

1. Tank Adapter Ring (TAR)
2. Riser Adapter Ring Kit
3. Butyl Rope
4. Risers
5. Domed Lid OR Flat Lid
6. Stainless Steel Screws

The following materials will be required for digging up your septic tank(s):

1. As-built condition of the sewage treatment system The following items are required: sketch on paper, measuring tape, shovel, probing instrument, eye protection, and work gloves.

To cut risers to the proper size, the following tools are required:

1. Circular saws, saber/jig saws, and hand saws
2. Raspor file
3. Marking pen
4. Tape measure
5. Drill with a 1/4″ bit

Materials required to seal the risers to the tank include:

1. It will be necessary to use the following materials to secure the risers to the tank:

Follow the four simple procedures shown below to install access risers on your septic components, or download and print a copy of theSeptic Tank Manhole and Access Riser Installationbrochure from Thurston County Environmental Health to get started right now.

Step 1: LocateYour Septic Tank(s)

When looking for your underground septic tank or tanks, it is essential to consult the ‘As-built’ Record Drawing linked with your septic system for assistance. Essentially, this is a plot diagram that shows where your septic system was put on your property, as well as distances between septic components and notable landmarks. The Online Permit System will guide you through the process of locating septic-related documentation if you do not have a “as-built” document. It is possible that you may need to contact Environmental Health to examine the paper records or seek a specialist to find your tank if an as-built is not accessible.

Probing the area around the septic tank with the probing instrument until you contact concrete should be done lightly.

The presence of underground electricity or other utility lines and cables might put your septic tank in danger.

Call 1-800-424-5555 or 811 or go online to make sure that any electrical utilities are found before you begin digging before you begin digging.

Step 2: Uncover Your Septic Tank (s)

Once you’ve discovered your septic tank, you may start digging about. The tank is typically 6 feet wide by 8 feet long, with the width being the largest size. Remove all of the pebbles and debris from around the tank’s lid openings and dig out the whole top of the tank. You will want to clean out any dirt that has accumulated on the surface of your septic tank. This will assist you in ensuring that you generate a high-quality seal. You should have two openings: one over the inlet (which comes from the home) and another over the outlet (which comes from the yard) (into the drainfield or pump chamber).

• You’ll need a riser for each of the doors you open.
• Typically, the inlet side is the one that is nearest to the home.
• When cleaning the tank, it is beneficial to remove the complete top of the tank.
• Risers must be modified in order to be correctly installed, and all manholes (holes 24 inches or bigger in diameter or square in shape) must also be updated, as well as the tankinlet and outlet baffle covers (if separate from the manholes).
• If you discover one – and only one – riser already installed, it is most likely for the pump chamber, which only requires a single riser to provide access to the pump to function properly.
• Remove the concrete lids so that they may be disposed when the project is completed.
• Consult your’As-built’Recorddrawing to establish whether you have a distribution box (D-box), which you will also need to unearth and place a riser on if you have a typical gravity system.
• Once the lids have been removed, proceed with caution around the tank.
• Inform someone of your whereabouts in case you are involved in an accident.

You should be aware that exposure to sewage can result in serious sickness, so make sure you wear gloves and thoroughly wash your hands afterward with soap and water. It is also recommended that you wear eye protection in the event that debris falls into a tank and splashes back at you.

Step 3: Fit Risers to Component Openings

In accordance with the diameter of the septic tank manholes, huge risers will either sit on top of the septic tank or will fit down into the aperture of the tank by 1-3 inches. It’s important to keep this in mind while calculating the height of the riser. The surplus can be easily removed; nevertheless, it is difficult to add a few inches to the length. Take the following measurements of the manhole cover’s diameter:

• Large risers will either rest on top of the septic tank or fit down into the tank opening by 1-3 inches, depending on the diameter of the septic tank manholes. When establishing the height of the riser, keep this in mind as you measure. The additional length may be easily removed
• However, it is quite difficult to add a few inches. Obtain the following measurement of the manhole cover’s circumference:

Large risers will either rest on top of the septic tank or will fit down into the tank opening by 1-3 inches, depending on the diameter of the septic tank manholes. When selecting the height of the riser, keep this in mind. The surplus can be easily removed; nevertheless, it is difficult to add a few inches to the overall length. Take the following measurements of the manhole cover:

Step 4: Attach Risers toSeptic Tank (s)

It is recommended to pump out an old septic tank that is 20 years or older in order to check its structural integrity and water-tightness before using it again. If the tank requires extensive repairs, it is preferable to replace it with a new septic tank that includes risers as part of the installation. A permit from the local health department is required for the replacement of a septic tank. Remove any dirt and debris from the tank’s surface by cleaning it off. Using the butyl rope, construct the components of the risers in accordance with the manufacturer’s instructions.

Jet-Set, Rapid-Set, Thorough-Set, and Perco-Plug are just a few of the brand names available.

NOTE: For optimal results, just a little amount of concrete patch should be mixed at a time.

The patch mix should be used to seal the riser to the septic tank.

If you want to avoid a safety danger, make sure you properly attach theriser lid using the screws that come with it!

Risers for inlet or outlet apertures that are smaller than the openings should have the bottom few inches sanded with rough sandpaper to allow a firmer connection between the two surfaces.

A useful source of information on correct installation of risers on septic tanks may be found at your local hardware store where you purchased the risers and covers.

Thurston County Environmental Health is should be commended for providing the foundation for this documentation.