Septic in Sherman County, OR

In Sherman County, you'll notice wide skies, open fields, and a lot of homes tucked away from big sewer lines. If you're touring or settling here, chances are you'll encounter a septic system rather than a municipal sewer connection.

Is septic common in Sherman County? Yes. In this rural, farm-and-ranch landscape, most homes rely on on-site septic systems unless they're located in one of the towns with city sewer. If you own or are buying a home here, plan to confirm the septic status as part of your due diligence. A certified septic inspector can verify the tank, distribution system, and drain field, and review any maintenance records or repair history.

Why homes typically use septic systems here

• Rural, dispersed development means sewer mains don't reach every property.
• Centralized sewer service isn't practical across the county's broad, agricultural tracts.
• With proper siting, soil, and design, on-site systems can efficiently treat wastewater on individual lots, keeping costs reasonable for homeowners.
• Local regulations and transfer requirements often encourage regular inspections and upgrades to protect groundwater and nearby waterways.

County growth history and how that has impacted septic coverage

Sherman County has grown slowly and steadily, with development concentrated in a few towns and many farms and ranches spread across the landscape. That slow growth has shaped a septic-first, septic-already-in-place reality for most rural homes. As new subdivisions appear and property transfers occur, the demand for well-designed, well-maintained septic systems has increased. Aging tanks and leach fields, plus evolving local codes, mean maintenance and occasional upgrades are common parts of home ownership here. The result is a practical, on-site approach to wastewater that fits the county's low-density, agricultural character.

High-level explanation (why septic exists here)

On-site septic exists here because building and maintaining a centralized wastewater system across wide, sparsely populated parcels would be costly and impractical. Properly designed and maintained septic systems provide a reliable, local solution that protects groundwater and nearby streams, while matching the county's rural lifestyle.

Here you'll find practical, friendly guidance to help Sherman County homeowners navigate septic decisions, maintenance, and upgrades.

How Septic Is Regulated in Sherman County

Who regulates septic systems in Sherman County

In Sherman County, on-site wastewater systems (septic systems) are regulated by two layers: the county Environmental Health Office handles local permitting, inspections, and ongoing maintenance requirements, while the Oregon Department of Environmental Quality (DEQ) sets statewide design and performance standards. This dual approach helps protect drinking water, wells, and the environment.

• County responsibilities:
  • Review and approve septic plans for new systems and repairs.
  • Issue permits to install, modify, or abandon septic systems.
  • Inspect installations at key milestones (before, during, and after placement).
  • Maintain records of permits, inspections, and pumping events.
  • Enforce proper installation, operation, and maintenance; require repairs when needed.
• State responsibilities:
  • Establish minimum design, performance, and setback standards through statewide rules (On-site Wastewater Systems, often referenced as OAR 340-071-series).
  • Provide guidance and oversight to ensure local permitting and inspections align with state health and water-quality goals.
  • Support enforcement actions when systems threaten public health or the environment.

The permitting and inspection process

1. Site evaluation and preliminary design: A qualified designer or engineer assesses soil, groundwater, and lot layout to determine a suitable system type.
2. Plan submission: Submit plans to Sherman County Environmental Health for review and approval.
3. Permit issuance: Once plans meet both county and state requirements, a permit to install is issued.
4. Installation and inspections: Work is completed under county supervision; inspections occur at critical stages (e.g., trenching, septic tank placement, backfilling, and final use-approval).
5. Final inspection and activation: After successful inspection, the system is approved for operation, and ongoing maintenance becomes the owner's responsibility.

Design standards and system types

• Conventional systems: The most common option, consisting of a septic tank and a drain field designed to handle wastewater with standard soils.
• Alternative/advanced systems: Mound systems, aerobic treatment units (ATUs), and other engineered solutions used in challenging soils or where space is limited.
• Setbacks and compatibility: Rules specify minimum distances from wells, streams, property lines, and other water sources; local amendments may apply, but they must align with state standards.
• Design life and performance: Systems must meet functional performance, durability, and safety criteria established by the state.

Maintenance and records

• Pumping frequency: Regular pumping every 3–5 years is commonly recommended, but exact intervals depend on tank size, household water use, and system design.
• Record-keeping: Keep pumping receipts and maintenance logs; the county may request copies for compliance or upgrades.
• Accessibility: Ensure access lids or risers remain visible and unobstructed for future service and inspections.
• Abandonment and upgrades: If a system is abandoned or modified, proper decommissioning or upgrade procedures must be followed.

Enforcement and compliance

• Common violations: Operating without a permit, not following approved plans, or performing unpermitted modifications.
• Remedies: The county can require corrective actions, impose fines, or mandate upgrades to meet current standards.
• State role in enforcement: If a system poses significant risk to water quality or public health, state authorities may become involved for enforcement and corrective actions.

Where to find official resources

• Sherman County Health Department – Environmental Health / On-site Wastewater:

Soil, Groundwater & Environmental Factors in Sherman County

Local Soil Diversity and Drainage in Sherman County

• Sherman County soils vary across the landscape, from well-drained sandy loams to areas with finer textures that drain more slowly. Texture and structure strongly influence how wastewater infiltrates the soil.
• Some spots may have shallow bedrock or compacted layers that limit absorption. Others include caliche or clay pockets that can impede drainage.
• Slopes, vegetation, and seasonal moisture affect infiltration performance. A site that looks suitable in dry months may behave differently after wet seasons.
• Practical takeaway: the absorption field design must match the specific soil texture, depth to restrictive layers, and drainage patterns on your property.

Groundwater Depth and Water Resource Considerations

• Groundwater depth in Sherman County ranges by location and proximity to river valleys, with some areas showing shallower water tables during wetter periods and others with deeper tables in higher elevations.
• Seasonal fluctuations matter: a water table that's acceptable for a given system in one season may approach restrictive depths in another.
• Proximity to drinking wells, streams, or FEMA-designated flood zones affects suitability. Systems installed too close to wells or surface water can risk contamination or regulatory setbacks.
• Practical takeaway: identify the closest wells and surface water features on or near the property, and confirm conditions across seasons with a qualified professional.

Site Evaluation Steps for Sherman County Homeowners

1. Check soil and drainage information for your parcel using the NRCS Web Soil Survey for Sherman County soils. Look for drainage class, depth to restrictive layers, and texture changes across the site.
2. Schedule an in-person infiltration/percolation test with a licensed septic designer or contractor who can interpret results for your lot.
3. Confirm depth to seasonal groundwater and bedrock with a professional and/or county records. Use multiple data points across the site if possible.
4. Assess floodplain status and proximity to streams or ditches. Verify with local maps and, if relevant, FEMA flood maps.
5. Follow local regulations and DEQ guidance for setbacks from wells, surface water, and property lines. Work with your installer to design within the approved requirements.
6. Plan for long-term stewardship: budget for regular pumping, avoid putting hazardous chemicals down drains, and maintain drainage around the system to prevent surface pooling.
7. Tip: keep a written record of soil observations, groundwater indicators, and test results to discuss with installers or inspectors.

Environmental Protection Tips for Sherman County Homes

• Use water-efficient fixtures and practices to reduce wastewater volume and protect soil absorption capacity.
• Maintain a protective zone around the absorption area: keep heavy use away from the drain field and prevent compaction of the soil.
• Do not drive or park on the absorption field, and avoid planting deeply rooted vegetation directly over it to prevent root intrusion.
• Use septic-safe products and never pour solvents, paints, or large quantities of grease down household drains.
• Schedule regular septic system pumping and inspections as recommended by a licensed professional to prevent early system failure and protect groundwater.
• If you're near flood-prone areas, develop a contingency plan for temporary shifts in drainage and water use during extreme weather.

Official Resources

• NRCS Web Soil Survey (for Sherman County soils and drainage):
• FEMA Flood Map Service Center (to check flood zones and related considerations):

Typical Septic System Types in Sherman County

Conventional gravity septic systems

• How it works: A septic tank traps solids; clarified effluent exits the tank by gravity into a drainfield of perforated pipes buried in soil.
• Suitability: Best where soils drain well enough to carry effluent away from the tank and where groundwater or bedrock aren't too close to the surface.
• Pros: Typically the lowest-cost option; simple design and maintenance.
• Cons: Requires adequate soil depth and permeability; performance drops if the soil is heavy clay, shallow, or water tables are high.
• Maintenance notes: Regular pumping every 3–5 years (vary by use and tank size) helps prevent solids buildup that can clog the drainfield.

Chamber systems

• How it works: Instead of conventional perforated pipe in trenches, modular plastic chambers create deeper, wider drain areas for effluent distribution.
• Suitability: A good fit when trench space is limited or when soil permeability is marginal but there's enough depth for a raised bed.
• Pros: Flexible installation; often quicker to install and can be more forgiving on uneven terrain.
• Cons: Generally similar maintenance needs to conventional systems; performance still depends on soil and loading.
• Maintenance notes: Periodic inspection of chambers and distribution lines is recommended; keep heavy equipment away from the area above the drainfield.

Mound systems

• How it works: A raised "mound" of engineered fill sits above native soil to provide a travel path for effluent when native soil is too shallow or has poor permeability.
• Suitability: Common in Sherman County where bedrock or shallow soils prevent good drainage.
• Pros: Expands usable area on properties with challenging soils; can meet local design standards.
• Cons: More complex and costly to install; requires ongoing maintenance and monitoring.
• Maintenance notes: Ensure vegetation is controlled on the mound; schedule regular inspections to verify the load on the system isn't excessive.

Sand filter systems

• How it works: Pre-treated effluent from the septic tank is distributed to an above-ground or infiltrative sand bed that further treats water before it reaches the natural soil.
• Suitability: Useful where soils don't provide adequate treatment or where space is limited for a conventional drainfield.
• Pros: Higher treatment efficiency in marginal soils; can handle higher effluent strength.
• Cons: Requires more mechanical components and energy for moving water; ongoing maintenance is essential.
• Maintenance notes: Sand media and filters require periodic testing and potential replacement; keep the area above and around the filter clear.

Aerobic Treatment Units (ATUs)

• How it works: Mechanical aeration provides aerobic conditions to aggressively treat wastewater before distribution to the drainfield.
• Suitability: Helpful on properties with restrictive soils or where a conventional drainfield is impractical.
• Pros: Higher-quality effluent can permit alternative distribution methods (drip or spray) and smaller drainfields.
• Cons: Requires electricity and more routine maintenance; more components can mean more potential failure points.
• Maintenance notes: Regular service by a licensed technician is essential; ensure access to the control panel and aerator remains clear.

Drip distribution and low-pressure systems

• How it works: Delivers small amounts of treated effluent through tubing at shallow depths, often in combination with ATUs or mound systems.
• Suitability: Useful when land area is limited or when precise, even distribution is needed to protect soils.
• Pros: Reduces soil saturation risk; can be used in tighter lots.
• Cons: More complex design and maintenance; careful monitoring to prevent clogging.
• Maintenance notes: Filters and emitters should be inspected and flushed as recommended by the installer or local inspector.

How to tell which type you have

1. Check your property records or septic permit with Sherman County's environmental health office for the design type.
2. Inspect the access lids and labels on the system components (septic tank, pump tank, ATU, mound, or drainfield components).
3. Hire a licensed septic inspector or OSHW provider to confirm the exact system type and current condition.

Official guidance and resources

• Oregon DEQ On-site Wastewater Systems:
• EPA Septic Systems: https://www.epa.gov/septic
• Oregon State University Extension (septic resources): https://extension.oregonstate.edu/

Typical Septic Issues Across Sherman County

Common signs of septic trouble

• Foul odors near drains, toilets, or the drainfield area
• Soggy, swampy patches or bright green, lush growth over the drainfield
• Slow flushing, backups in toilets or drains, or gurgling sounds in plumbing
• Water bills or pumping frequency higher than usual
• Sewage surfacing or pooling in the yard after rainfall

Drainfield and soil-related problems you'll see in Sherman County

• Soil constraints: Sherman County's desert soils can be sandy or compacted, which affects how quickly effluent soaks in. Poor percolation leads to surface wet spots and odor.
• Drought and irrigation effects: Irregular or extensive irrigation can pull water away from, or saturate, the drainfield area, stressing the system.
• Root intrusion: Trees and shrubs planted near the drainfield can invade pipes and reduce flow.
• Seasonal water table shifts: In some areas, shallow groundwater or perched layers limit drainage, causing backups or surface wetness.
• Incorrect sizing or placement: Older systems or those installed without local guidelines may be undersized for current usage or poorly located relative to wells or structures.

Tank or component failures that happen with age or misuse

• Cracked, corroded, or leaking tanks: Over time, tanks can fail, allowing untreated effluent to escape.
• Baffles or tees deteriorating: Damaged internal components disrupt flow and trap buildup in the tank.
• Pump, float, or filter problems: Submersible pumps or outlet filters can stop working, forcing effluent back into the house or onto the drainfield.
• Blocked or collapsed lines: Inlet/outlet pipes or the absorption trenches can clog or fail from solids buildup or root intrusion.

Common misuse that accelerates problems

• Flushing non-septic items: wipes (even "flushable"), feminine products, diapers, paper towels, oils, solvents, paints, and chemicals disrupt microbial activity or clog lines.
• Excessive water use: Large loads, long showers, or malfunctioning laundry machines push more water through the system than it can handle.
• Introducing cleaners and additives: Many products don't improve performance and can harm beneficial bacteria in the tank.

Prevention and maintenance that can save you money

• Regular pumping based on tank size and household use (typical guidance is every 3–5 years for a family, but check local guidance and as-built specs).
• Protect the drainfield: keep vehicles off the drainfield area, plant only shallow-rooted vegetation above it, and maintain a safe setback from buildings, wells, and runoff sources.
• Use water wisely: fix leaks, install low-flow fixtures, and spread out high-water activities.
• Inspect and service: have a licensed professional inspect components (tank, pump, floats, filters) and locate the drainfield if records are missing.
• Keep records: retain pump dates, repair notes, and as-built drawings to plan future maintenance.

Quick diagnostic steps you can take

1. Check for sewage odors or damp, green patches in the yard over the drainfield.
2. Look for toilets or drains that back up after use or after heavy laundry days.
3. Listen for gurgling sounds in plumbing when you flush.
4. Inspect for standing water or soggy areas after rainfall or irrigation near the system.
5. Verify water-saving practices and avoid flushing non-septic items.

When to call a professional

• Backups persist after conservative measures
• You notice persistent odors, damp areas, or surfacing effluent
• You suspect a cracked tank, clogged line, or failed drainfield
• You need tank locating, a formal inspection, or a certified pump-out

Official resources and references

• Oregon Department of Environmental Quality (DEQ) Onsite Wastewater program:
• U.S. Environmental Protection Agency (EPA) Septic Systems overview: https://www.epa.gov/septic

Septic Inspection, Permits & Local Oversight

Permits and who issues them

In Sherman County, most septic system work requires a permit before installation or modification. Permits are issued by the county's health/planning offices in coordination with Oregon DEQ. Plan reviews confirm the design fits site conditions, setbacks, soil suitability, and system capacity.

When you need a permit

• New septic systems
• Replacements or major repairs
• System modifications or expansions
• Real estate transfers that trigger inspections

The permit process (step-by-step)

1. Hire a licensed OSDS designer/installer familiar with Oregon rules.
2. Have soil and site evaluations performed by qualified professionals.
3. Prepare a complete system design and an operation & maintenance (O&M) plan.
4. Submit the permit package to Sherman County (include plan drawings, site sketch, soil reports, and the O&M plan).
5. Obtain plan approval from the county and schedule required inspections.
6. Install the system under county oversight, addressing any inspection notes.
7. Complete a final inspection and receive permit closure and final approval.

Inspections you'll encounter

• Pre-installation site evaluation and design review
• Inspections during installation ( trench depths, pipe placement, backfill, tank positioning)
• Post-installation final inspection to verify proper function and site integrity
• Real estate transfer inspections, if applicable, to confirm the system meets current standards

Real estate transfers and septic inspections

• Buyers should request a current septic inspection or certification as part of the closing process.
• If issues are found, repairs or replacement must follow permit requirements and pass inspection before occupancy or transfer.
• Sellers can provide existing certificates if available; otherwise arrange a county-approved inspection to establish a current, compliant status.

Local oversight and best practices

• Oregon onsite wastewater rules require county oversight for permits and inspections.
• Sherman County Public Health/Building Department coordinates permits, plan reviews, inspections, and final approvals.
• Homeowners are responsible for ongoing maintenance per the approved O&M plan.
• Keep all permit documents, inspection reports, and O&M records in a dedicated file for easy reference.

How to contact and where to find official resources

• Oregon Department of Environmental Quality – Onsite Wastewater (OSDS) program:
• Sherman County public health/building department and planning resources: https://www.co.sherman.or.us/
• For specifics on real estate transfers and local requirements, check Sherman County's official site or contact the county health/planning offices directly.

Cost Expectations for Septic Services in Sherman County

Septic Tank Pumping

• What it includes: Pumping out accumulated sludge and float from the tank, removing solids, inspecting baffles and inlet/outlet pipes, and recommending next steps. In Sherman County, accessibility, tank size, and disposal site distance can affect time and price. Some crews offer optional camera inspection of piping if there are signs of trouble.
• Sherman County specifics: Remote locations and winter travel can add small trip fees or weather-related delays. Many homes in Sherman County rely on 1,000–1,500 gallon tanks; larger tanks or multi-compartment setups cost more. Expect longer drive times if you're well off the main highways.
• Typical cost: roughly $250–$450 for a standard 1,000–1,500 gallon tank; $450–$800 for larger tanks or if access is difficult or if a camera inspection is added.
• Resources: Oregon DEQ Onsite Wastewater Program for guidelines and best practices.

Septic System Inspection (Routine or For Sale)

• What it includes: Visual inspection of tank lids, access risers, and the drain field; assessment of pumping status, drainage, and any odors or damp areas; optional camera or dye tests to check lines.
• Sherman County specifics: Rural properties may require a longer travel window and coordination with seasonal weather. For real estate transactions, inspectors often work with local septic installers to provide a quick, reliable report.
• Typical cost: $150–$350 for a basic inspection; $350–$700 if a camera inspection or dye test is included.
• Resources: County and state guidance can inform timing; see Oregon DEQ link above.

Septic System Installation / Replacement (New System or Major Repair)

• What it includes: Site evaluation, design by a licensed pro, soil testing (percolation assessment), obtaining local permits, installation of the tank and drain field, and final system testing.
• Sherman County specifics: Soils in this area can be variable (desert soils, clay layers, shallow groundwater in spots). This may push designs toward mound systems or enhanced treatment units, increasing cost. Permitting with Sherman County and DEQ is typically required.
• Typical cost: Gravity systems often start around $15,000–$25,000; mound or advanced systems commonly range from $25,000–$45,000; more complex setups or larger homes can exceed $60,000.
• Resources: Sherman County official information and DEQ guidelines; check http://www.co.sherman.or.us/ for county-specific requirements. Official DEQ onsite wastewater guidance linked above.

Drain Field Repair / Replacement

• What it includes: Diagnostic evaluation, soil testing, pipe repair or replacement, gravel fill, and possibly trenching or lateral line replacement. In Sherman County, weather windows and distance to disposal sites affect scheduling.
• Sherman County specifics: If the existing field is failing due to soil issues, a replacement or redesign (e.g., expanding the field, converting to a mound) may be necessary.
• Typical cost: $2,000–$8,000 for a targeted repair; $15,000–$40,000 for full drain field replacement or mound expansion.
• Resources: DEQ guidelines and local permitting information (see links above).

Septic Tank Riser & Access Improvements

• What it includes: Installing or upgrading risers and secure lids for safer, easier access for future maintenance.
• Sherman County specifics: Easier access reduces future service time, a benefit in remote areas where soil and weather can complicate maintenance.
• Typical cost: $300–$900 depending on material and site conditions.
• Resources: DEQ Onsite Wastewater guidance; local contractors may provide entries that align with state standards.

Maintenance Programs & Preventive Care

• What it includes: Annual or biannual inspections, scheduled pump-outs, filters or effluent screen cleanings if present, and guidance on water-saving practices to extend life.
• Sherman County specifics: Remote locations may benefit from a maintenance contract to prevent surprise failures during busy seasons or winter weather.
• Typical cost: $150–$350 per year for a basic plan; some programs offer multi-year discounts or bundled services.
• Resources: Oregon DEQ guidelines and local county pages for recommended schedules.

Percolation Tests / Soil Evaluation for New Systems

• What it includes: In-depth soil and percolation testing to inform system design; often required for permits and to determine appropriate system type.
• Sherman County specifics: Desert soils and variable groundwater depths can influence test outcomes and design choices; results help decide between gravity, mound, or alternative treatment options.
• Typical cost: $600–$2,200 depending on lot size, access, and the complexity of the test.
• Resources: DEQ Onsite Wastewater Program guidance; county planning resources for permit requirements.

Septic Alarm, Float Switch, or Control Panel Replacement

• What it includes: Replacement of failed alarm units, sensors, or control panels to restore system monitoring.
• Sherman County specifics: Remote locations mean prompt replacements can reduce nuisance drainage issues or backups.
• Typical cost: $150–$350 for parts and labor, plus any diagnostic travel fees.
• Resources: DEQ guidelines for system components; local installers can confirm compatibility with your existing system.

Real Estate Transfer Inspections / Certifications

• What it includes: A thorough assessment to ensure the system is capable of handling ongoing use and to document status for the sale.
• Sherman County specifics: Local inspectors coordinate with sellers and buyers to meet DEQ or county requirements within a typical escrow timeline.
• Typical cost: $200–$500 depending on the depth of testing and whether camera work is included.
• Resources: DEQ guidance on onsite systems and county real estate transaction practices (see DEQ and Sherman County pages).

Septic vs Sewer Across Sherman County

How septic and sewer differ in Sherman County

• Rural homes typically rely on on-site septic systems (tank and drain field) for wastewater treatment.
• Towns and cities may be connected to a public sewer system that sends wastewater to a central treatment plant.
• Your situation depends on where you live within Sherman County and whether a sewer district serves your property.

Is sewer service available in your area?

• Check with the Sherman County Public Works or your local sewer district to confirm service status.
• Look up your property records or tax bill for references to sewer charges or a connection fee.
• Contact the Oregon Department of Environmental Quality (DEQ) for maps and rules about onsite systems and sewer connections. Official resource:
• If you're unsure, start by calling the county's planning or public works office, which can confirm service availability and any required steps.

Pros and cons at a glance

• Septic system (unsewered areas)
  • Pros: Lower monthly costs if well maintained; more control over local soil conditions; no reliance on a distant plant.
  • Cons: Requires regular maintenance (pumping, inspection); performance depends on soil, slope, and usage; failure can be costly.
• Public sewer (sewered areas)
  • Pros: No septic maintenance; reliable service under a single system; repairs handled by the sewer district.
  • Cons: Monthly sewer charges; potential for high bills during heavy usage or rate increases; you rely on the district's infrastructure.

Costs to consider

• Septic system
  • Installation: varies by lot size, soil, and system design.
  • Maintenance: pumping every 3–5 years (or as recommended), plus inspection fees.
• Sewer connection
  • Connection or tap fees from the sewer district.
  • Possible trenching, utility upgrades, and permit costs.
  • Ongoing sewer charges (monthly or quarterly).

How to decide: practical steps

• Step 1: Confirm current service. Is there a septic system or a sewer bill on your property records?
• Step 2: Assess soil and site conditions. Do you have good soil drainage for a drain field? If not, staying with sewer may be preferable if available.
• Step 3: Calculate long-term costs. Compare anticipated septic maintenance with sewer district rates and potential rate escalations.
• Step 4: Plan for future changes. If you're near a future sewer expansion, weigh the timing of a connection against ongoing septic upkeep.

Septic care basics

• Pump and inspect every 3–5 years, or as recommended by a licensed professional.
• Use water wisely; fix leaks and install low-flow fixtures to reduce load on the system.
• Don't flush non-biodegradable items, fats, oils, or harsh chemicals; avoid driving over the drain field.
• Schedule regular professional inspections to catch issues before they become expensive problems.
• Protect the drain field from heavy construction, trees, and vehicles.

Permits, licenses, and professional help

• Permits: New installations or significant replacements require permits through the Oregon DEQ and local authorities. Oregon DEQ Onsite Wastewater Program info: https://www.oregon.gov/deq/wq/wastewater/onsite/Pages/index.aspx
• Contractors: Hire a licensed septic designer or installer. Your county health department or public works office can provide a list of approved professionals.
• Sewer connections: If you're moving from septic to sewer, coordinate with the sewer district and Sherman County offices to understand connection requirements, inspections, and fees.
• Local guidance: For county-specific steps, contact Sherman County Public Works or the county health department for guidance and check for updates on official sites: https://www.co.sherman.or.us (county homepage) and the DEQ link above.

Local resources

• Sherman County official site: https://www.co.sherman.or.us
• Oregon Department of Environmental Quality (Onsite Wastewater Programs): https://www.oregon.gov/deq/wq/wastewater/onsite/Pages/index.aspx
• EPA Septic Systems resource: https://www.epa.gov/septic

Quick reference checklist

• [ ] Confirm whether your property is served by sewer or a septic system.
• [ ] If septic, schedule a professional inspection and set a pumping interval.
• [ ] If sewer, obtain connection details, fees, and anticipated monthly charges.
• [ ] Review soil suitability and lot constraints for septic performance.
• [ ] Keep a maintenance calendar and keep records of all inspections and pumps.