Septic in Momence, IL

Momence sits along the winding Kankakee River, where quiet streets meet open yards and practical, down-to-earth living. If you've ever walked a block and smelled fresh soil from a well-tended drain field, you've felt the real-world charm of this area. Here, many homes rely on septic systems because private wastewater solutions fit the landscape and the way our town grew.

Is septic common in Momence? Should I expect septic if I own or buy a home? In Momence, septic is the norm for many single-family homes, especially those outside the central sewer district. If a home isn't connected to a municipal sewer line, it's almost certainly using a septic system. When you're buying, it's smart to review the septic permit history, the age of the tank, and the most recent pumping or inspection records. A quick chat with a local septic pro can give you a clear read on what's in place and what maintenance it might need.

Why homes typically use septic systems in Momence

• Outside-the-line access: A lot of Momence properties sit on parcels where extending sewer mains isn't practical or cost-effective, so an on-site solution makes sense.
• Cost and practicality: Septic systems avoid the expense of building and maintaining large sewer infrastructure on rural or semi-rural lots.
• Local soils and water table: The design of a septic system in Momence takes the specific soil conditions and seasonal groundwater into account, ensuring wastewater is treated properly on-site.
• Independence and stewardship: A well-maintained septic system gives homeowners control over their wastewater treatment, while protecting local water and soil quality.

High-level explanation (why septic exists here)

Septic systems exist in Momence because they're a robust, on-site approach that fits how many homes are located—rural or semi-rural properties where sewer lines don't reach or aren't feasible to install. With the right design, system components, and regular maintenance, a septic setup keeps your home comfortable and protects the surrounding environment.

As you read on, you'll find practical maintenance tips, seasonal checks, and clear questions to bring to your local septic contractor. Think of this as a neighborly, professional guide to keeping your system reliable and trouble-free.

Where Septic Systems Are Common in Momence

Unsewered areas around Momence

In Momence, you'll find a mix of properties. The core town and some adjacent pockets have municipal sewer service, but many rural and unincorporated areas outside the sewer boundary rely on private septic systems. This pattern follows traditional development: denser, town-centered lots connected to the sewer system, with larger lots and farm properties outside the service area using septic tanks and drain fields.

• Rural residential lots along county roads and fringe areas around the village
• Older neighborhoods that were built before sewer mains were extended
• Agricultural and farm properties where space and cost discouraged centralized sewer expansion

Why septic is common in these areas

Several practical factors explain why septic systems remain the norm in much of Momence:

• Infrastructure and cost: Extending municipal sewer lines to sparsely populated or hillside areas is expensive. For many property owners, a private septic system is the most feasible option.
• Development patterns: Historic growth often occurred in stages, with sewer service concentrating in the core town and not yet in every outlying parcel.
• Soil and drainage considerations: Local soil conditions and groundwater influence septic performance and permitting. Properly sited systems that meet local health requirements work well, while unsuitable soil can complicate installation or require alternative designs.
• Land use and lot size: Larger parcels common outside the town limits provide adequate space for septic drain fields, making septic a reliable choice for residents who are not on a sewer main.

How to tell if your Momence property uses septic

• Check with local authorities: Contact the Village of Momence offices or the county health department to confirm whether sewer service reaches your address.
• Look for signs of a septic system: A buried tank lid or cleanout access on your property, or a history of septic pumping, often indicates a private system.
• Review property records: Deeds, plats, and past permitting documents can show septic installation dates and tank locations.
• Hire a professional: A licensed septic contractor or an environmental health inspector can confirm system type, condition, and compliance.

Maintaining septic in Momence properties

• Regular pumping: Most systems are pumped every 3–5 years, or as advised by a professional, to prevent solids buildup.
• Mindful use: Avoid flushing non-biodegradables, fats, oils, and harsh chemicals that can disrupt treatment bacteria.
• Protect the drain field: Keep heavy equipment off the drain field, manage irrigation, and avoid planting trees or shrubs with invasive roots near the system.
• Seasonal considerations: In areas with wet springs or high groundwater, monitor for drainage issues and schedule inspections if you notice surface dampness or odors.

Quick checklist for homeowners outside sewer service

1. Verify sewer status for your address with local authorities.
2. If septic, schedule a professional assessment and pumping as needed.
3. Maintain records of system location, age, and last pump date.
4. Plan for future changes: If sewer service becomes available, explore connection options and any municipal requirements.

Resources:

• U.S. EPA – Septic Systems:

Septic vs Sewer: What Homeowners in Momence Should Know

How septic vs sewer work

A septic system is a private, on-site wastewater treatment setup tied to your property. Wastewater flows from your home into a buried septic tank, then effluent is treated in the drainfield before it re-enters the ground. A sewer system is public infrastructure; wastewater from your home travels via underground pipes to a municipal treatment plant. In short, septic is homeowner responsibility; sewer is community responsibility.

Pros and cons at a glance

• Ownership and maintenance: Septic = you own and maintain; sewer = city or village maintenance.
• Availability: Septic works anywhere with soil suitable for absorption; sewer depends on local public infrastructure expansions.
• Cost considerations: Septic has pumping, inspections, and potential replacements over time; sewer involves connection fees and ongoing monthly sewer charges.
• Reliability: Sewer reliability depends on the public system and power; septic reliability depends on proper use and regular maintenance.
• Environmental impact: A well-kept septic system protects groundwater and nearby wells; a failing system risks local contamination if not promptly addressed.

Costs and what to expect

• Routine pumping and inspection: typically a few hundred dollars every 3–5 years, depending on usage and tank size.
• Drainfield or system repair: can range from several thousand to tens of thousands of dollars.
• Sewer connection: one-time hookup fees plus monthly sewer charges; decommissioning a septic system may be required if you switch to public sewer.
• Replacement timelines: a septic drainfield or tank can last decades with proper care; failure or improper maintenance often triggers higher replacement costs.

Availability in Momence

Momence spans residential areas with varying access to public sewer. Some neighborhoods rely on septic systems, while others connect to municipal services as the system expands. Check with local authorities to confirm sewer availability for your exact address and understand any associated costs or timelines.

Maintenance basics you should follow

• Pump and inspect: have your septic tank pumped every 3–5 years (or per manufacturer/installer guidance) and inspect components during service.
• Protect the drainfield: keep heavy vehicles and structures off the absorption area; divert surface water away from the drainfield.
• Smart use: limit flushing non-biodegradable items, fats, oils, and chemicals; spread out heavy water use (dishwashing, laundry) to avoid overloads.
• Water efficiency: install water-saving fixtures and fix leaks promptly to reduce load on the system.
• Additives caution: avoid routine chemical additives unless advised by a licensed pro; they can disrupt natural treatment processes.

If you're considering switching to sewer

1. Confirm sewer availability for your property with the Village of Momence or Kankakee County authorities.
2. Obtain a formal cost estimate for connection fees and any required street or utility work.
3. Plan septic decommissioning with a licensed septic contractor and obtain necessary permits.
4. Schedule the connection and ensure all permits are in place before transitioning.
5. Have any septic components decommissioned per local codes to prevent future issues.

Official resources

• EPA: Septic systems overview and homeowner guidance

https://www.epa.gov/septic

• EPA: Septic Smart program (tips for proper use and maintenance)

https://www.epa.gov/septic/septic-smart

• Illinois EPA (IEPA): Onsite wastewater treatment systems and guidance

https://www2.illinois.gov/epa/topics/wastewater/onsite/Pages/default.aspx

Typical Septic System Types in Momence

Conventional gravity septic systems

• How they work: A standard two-compartment setup with a septic tank and a drainfield that relies on gravity to move effluent from the tank to buried absorption trenches.
• When they fit: Common in areas with soils that drain reasonably well and a shallow seasonal high-water table.
• Pros and cons:
  • Pros: Simple, cost-effective, widely installed.
  • Cons: Requires adequate soil depth and permeability; performance drops if the soil is too clayey or too fast-draining.
• Quick maintenance notes: Have the tank pumped per local guidelines (often every 3–5 years), keep heavy equipment off the drainfield, and avoid flushing non-biological items.

Pressure distribution and low-pressure dose (LPD) systems

• How they work: A pump or siphon distributes effluent more evenly across multiple trenches, which improves performance on uneven soils or smaller lots.
• When they fit: Helpful when soil conditions are marginal or when the final drainfield area is limited.
• Pros and cons:
  • Pros: More uniform saturation, better for variable soils.
  • Cons: More components than a gravity system; higher upfront and maintenance costs.
• Quick maintenance notes: Ensure the pump and control timer are serviced regularly; keep outdoor cleanouts accessible.

Chamber drainfield systems

• How they work: Instead of gravel trenches, plastic chambers form wide, shallow gaps for effluent to infiltrate through the soil.
• When they fit: Useful in soils where conventional trenches aren't ideal or when access permits faster installation.
• Pros and cons:
  • Pros: Often faster installation, lightweight materials, good distribution.
  • Cons: Can be more expensive than traditional gravel systems; performance still soil-dependent.
• Quick maintenance notes: Inspect for settling or damage around the chamber edges; avoid heavy compaction over the chambers.

Mound systems (raised septic beds)

• How they work: Built abovegrade with engineered soil and sand layers to create a permeable environment where drainage is otherwise poor.
• When they fit: Typical in Momence when the natural soil has high water tables, low permeability, or limited depth to seasonal groundwater.
• Pros and cons:
  • Pros: Enables septic performance in challenging soils; protects groundwater in areas of shallow depth.
  • Cons: Higher cost; more complex design and long-term upkeep.
• Quick maintenance notes: Periodic inspection of the mound surface and subgrade; plan for professional maintenance if effluent odors or surface wet spots appear.

Aerobic treatment units (ATUs) and other advanced treatment options

• How they work: Provide enhanced treatment above a standard septic tank, often with mechanical aeration and a secondary drainfield or spray distribution.
• When they fit: Used where soil conditions are poor or where higher treatment levels are desired/required by code.
• Pros and cons:
  • Pros: Higher treatment efficiency, can permit smaller or alternative drainfields.
  • Cons: Higher energy use and maintenance needs; more frequent service calls.
• Quick maintenance notes: ATUs require regular service from a licensed provider; keep access covers clear and schedule routine inspections.

Site constraints and local considerations in Momence

• Soils in town limits can vary; infiltration, groundwater depth, and seasonal moisture affect system choice.
• Wet or flood-prone areas may prompt mound or ATU configurations to meet regulations and protect groundwater.
• Always coordinate with the local health department and a licensed septic professional to confirm the appropriate system type for your lot and to obtain the necessary permits. For guidance, see EPA's Septic Systems page: https://www.epa.gov/septic and the Illinois/state guidance at https://www.idph.state.il.us/.

Practical steps to determine the right type for your property

1. Get a professional soil and site evaluation to assess infiltration, depth to groundwater, and slope.
2. Check local requirements and permitting through the county or city health department.
3. Compare upfront costs, long-term maintenance, and reliability for gravity, pressure, mound, chamber, or ATU options.
4. Work with a licensed wastewater professional to design a system that fits your lot and complies with state and local codes. For state guidance, see EPA's Septic Systems page (https://www.epa.gov/septic) and the Illinois Department of Public Health homepage (https://www.idph.state.il.us/).

Maintenance essentials

• Schedule regular pumping and inspection of tanks and components.
• Protect the drainfield from compaction, heavy vehicles, and plumbing runoff.
• Monitor for odors, damp areas, or lush spots above the drainfield and consult a pro if issues arise.

Common Septic Issues in Momence

Drain Field Failure in Momence

In Momence, many parcels sit on clay soils with a relatively shallow groundwater table in spring. That combination, along with seasonal rains and root intrusion, can shorten drain-field life and lead to premature failure.

• Signs: soggy patches or lush growth over the drain field, persistent sewage odors near the yard, gurgling sounds or backups in low-flow fixtures.
• Causes: aging tanks, oversized or overloaded systems, clay soils that don't drain well, high water tables, and roots from trees or shrubs infiltrating pipes.
• What to do:
  1. Call a licensed septic professional for a formal inspection of the tank and drain field.
  2. Have the tank pumped to remove solids and verify baffles and outlet integrity.
  3. Get a soil/perc test or field evaluation to confirm whether repair or replacement is needed.
  4. Consider alternatives (e.g., mound system or drip irrigation) if site constraints exist and follow local codes.
• Official guidance: EPA's septic resources (onsite wastewater systems) at https://www.epa.gov/septic and https://www.epa.gov/septic/onsite-wastewater-systems-ows

Odors and Gurgling Inside the Home

Gurgling pipes and foul odors are clear signals wastewater isn't moving properly.

• Signs: frequent toilet/fixture backups, unexplained odors near drains or in the yard, slow drainage across fixtures.
• Causes: a full septic tank, venting issues, cracked pipes, or a failing drain field that allows gases to escape where you don't expect them.
• What to do:
  1. Conserve water to take some load off the system while you arrange service.
  2. Avoid chemical cleaners and non-biodegradable products that disrupt bacteria.
  3. Contact a licensed septic pro to inspect tank condition, venting, and pipe integrity.
  4. Follow local inspection and pumping requirements before additional use.
• Official guidance: EPA septic systems overview at https://www.epa.gov/septic

Slow Drains and Backups

Slow sinks, showers, or toilets can precede a full septic backup.

• Signs: slow drainage in multiple fixtures, occasional wastewater backup in lower fixtures.
• Causes: a full or partially blocked septic tank, buried line obstructions, or drain-field saturation slowing effluent flow.
• What to do:
  1. Limit water usage and avoid flushing wipes, grease, or fibrous waste.
  2. Have the tank pumped and inspected; check inlet/outlet baffles and pipes.
  3. If backups persist, schedule a drain-field assessment to determine if replacement or repair is required.
  4. Maintain proper disposal habits to prevent future clogs.
• Official guidance: EPA septic resources at https://www.epa.gov/septic

Standing Water or Soggy Lawn Over Drain Field

Frequent rain and a shallow water table can leave the drain field area consistently damp or flooded.

• Signs: standing water or overly saturated soil over the field, swampy patches in the yard, water pooling after rain.
• Causes: high groundwater, poor soil absorption, crushed trench or compaction, or a failing drain field.
• What to do:
  1. Keep people and pets off the area to avoid compaction.
  2. Schedule a professional evaluation to assess field condition and possible remediation.
  3. Implement long-term drainage and soil improvements; consider redesign if needed.
  4. Avoid driving over or planting large trees directly on the drain field.
• Official guidance: EPA information on maintaining healthy septic fields at https://www.epa.gov/septic

Excessive Water Use and Improper Disposal

Overloading the system with water or improper disposal can overwhelm a septic setup, especially in clay soils.

• Signs: repeated backups, slow drains after large water events, pooling near the field after storms.
• Causes: overlarge loads, frequent laundry, long showers, and improper use of garbage disposals.
• What to do:
  1. Spread out laundry and limit high-flow activities during the day.
  2. Use water-efficient fixtures and reduce long or hot showers.
  3. Minimize disposal of fats, oils, grease, and non-biodegradable items into the system.
  4. Have a professional assess system capacity and implement a routine pumping schedule.
• Official guidance: EPA septic maintenance tips at https://www.epa.gov/septic

Septic Inspection, Permits & Local Oversight

Who oversees septic systems in Momence

• In Illinois, sewer and onsite wastewater systems are generally regulated by the Illinois Department of Public Health (IDPH) and your local county health department. For Momence, that typically means the Kankakee County Health Department handles permits, inspections, and enforcement for residential OSS installations and repairs.
• Local municipalities may have their own building or zoning rules that touch septic work. Check with the City of Momence's building department or village clerk to confirm any extra requirements or fees.
• If you're buying or selling, ask your real estate agent or lender about any county transfer-inspection requirements in effect for your area.

Permits you may need

• New septic system installation: you'll almost certainly need an OSS permit before excavation or construction begins.
• Major repairs or replacements (tank, drain field, piping): permit required to proceed.
• Deep renovations that affect wastewater flow or placement: permits may be required.
• Real estate transfer: some transactions require a transfer or status inspection to verify the system is functioning.
• Fees and timelines vary by jurisdiction—your best-source is the local health department or building office.

Steps to get permitting (example workflow)

1. Contact the Kankakee County Health Department (or your local office) to confirm required permits for your project.
2. Submit the permit application with site plans, system design (or as-built if available), and any required paperwork.
3. Pay applicable fees and schedule the required inspections.
4. Prepare for the inspection window—inspectors will verify design, placement, and accessibility of the system.
5. Receive the approval and keep permits and inspection reports with your home records.

Real estate transfer inspections

• Many areas in Illinois require an OSS transfer inspection when a property changes hands. This check assesses the system's condition and records before closing.
• What to expect:
  • An inspector will verify the system's existence, size, age, and whether it functions properly.
  • A report is issued with any needed maintenance or repair steps.
  • If issues are found, repairs or upgrades may be required before closing, or as a condition of sale.
• To stay ahead: arrange a pre-sale inspection with the local health department or a licensed septic contractor so you know what to expect at transfer time.

What inspectors look for

• Tank and cover integrity, baffles, and safe access for pumping.
• Drainage field condition: signs of saturation, cracking, or effluent surface.
• Evidence of backups, odors, water seepage, or failed components.
• Location accuracy: confirm tank and field locations match records.
• Maintenance history: pump dates, maintenance records, and system age.

How to prepare for an inspection

• Locate the septic tank and drain field; share any existing as-built drawings or previous permits.
• Ensure safe, unobstructed access to lids and manholes; remove heavy snow, grass, or debris if needed.
• Have maintenance records ready (pump-outs, repairs, last inspection).
• Clear the area around the tank and field so the inspector can evaluate them safely.
• If you're selling, gather all permits and reports from past work to provide a complete history.

Keeping records & staying compliant

• Create a dedicated file for your septic system: permits, inspection reports, pump schedules, and maintenance.
• Schedule regular pumping and service according to system size and use; stay aware of local guidelines for pumping frequency.
• When planning additions or renovations, consult the local health department early to determine the impact on your OSS.

Resources

• Illinois Department of Public Health – Onsite Wastewater Systems:
• U.S. Environmental Protection Agency – Septic Systems: https://www.epa.gov/septic
• Local oversight and permitting inquiries: contact the Kankakee County Health Department or your local Momence building office for exact requirements and contact details.

Septic Maintenance for Homes in Momence

Local conditions in Momence that affect septic systems

Momence's seasonal climate and soils influence how your system drains and its vulnerability to backups.

• Soil and absorption: Many Momence yards sit on heavy clay with limited percolation, which slows effluent disposal and makes the drain field more sensitive to surges.
• Water table and flooding: Spring thaws and proximity to the Kankakee River can raise groundwater levels and saturate the drain field, increasing backup risk.
• Roots and development: Tree and shrub roots near the septic field are common in established areas; even small roots can damage pipes and reduce absorption.
• Seasonal rainfall: Very wet summers or heavy rains can overwhelm a tank and drain field, especially if the system is already near capacity.
• Well proximity: In some Momence areas, shallow wells mean extra care to keep effluent away from drinking-water sources and protect groundwater quality.

Routine inspection checklist

• Odors around the tank lid, vents, and drain field; damp or spongy ground can signal a problem.
• Grass over the drain field: consistently lush growth can indicate leakage or poor absorption.
• Tank lids and access points: cracks, settling, or missing risers should be addressed.
• Drains: slow sinks or frequent backups in sinks, tubs, or laundry are red flags.
• Water usage patterns: check for unusual spikes in water use or irrigation that could overload the system.

Seasonal maintenance plan

1. Pumping cadence: Typical households should plan pumping every 3-5 years, but adjust for tank size, household water use, and system age.
2. Spring readiness: Schedule a professional inspection after winter and before wet-season rains; replace accessible filters and verify baffles.
3. Summer precautions: Keep heavy equipment off the drain field; avoid planting deep-rooted trees nearby; limit soil compaction.
4. Fall checks: Inspect for root intrusion, cracks, and secure the lid for winter.
5. Winter reminders: Clear snow from around the access lid to keep inspection and pumping feasible; avoid caustic cleaners that can harm beneficial bacteria when temperatures drop.

Proactive maintenance tips

• Use water wisely: fix leaks, install efficient fixtures, and spread laundry across days to reduce peak loads.
• Careful disposal: never flush fats, oils, grease, diapers, wipes, medications, or chemicals; these can clog or harm the system.
• Drain field protection: keep vehicles off the drain field and plant only shallow-rooted grasses; avoid trees or large shrubs nearby.
• Additives: rely on proper operation rather than bacterial additives; a well-designed system relies on natural bacteria and good maintenance.

When to call a pro

• Persistent odors, soggy patches, or standing water above the drain field.
• Slow drains throughout the house or repeated backups.
• An older tank, or uncertainty about size and placement.

Finding a qualified septic contractor in Momence

• Seek licensed installers with local experience and solid references.
• Ask about warranties and request written maintenance plans after visits.
• Verify any work with IEPA or local health departments if needed.

Official resources

• EPA septic information: https://www.epa.gov/septic
• Illinois EPA Onsite Wastewater Treatment Systems: https://www2.illinois.gov/epa/Pages/OnsiteWastewaterTreatment.aspx

Cost Expectations for Septic Services in Momence

Septic Tank Pumping and Cleaning

• What it includes: removal of liquids and accumulated solids, cleaning the tank baffles where needed, and checking access lids and the pump chamber if applicable. In Momence homes, access can be affected by seasonal ground conditions and driveway locations, which sometimes adds a little time to service calls.
• Momence specifics: older systems in town may have deeper tanks or additional compartments that require extended pumping time or specialist equipment.
• Typical cost in Momence: $250–$600 per pumping, depending on tank size, accessibility, and whether any add-on services (like lid risers or dye testing) are requested.

Septic Tank Inspections

• What it includes: visual inspection of tank integrity, baffles, lids, and risers; evaluation of pump and alarm components; optional dye test to trace leaks; and a short report noting any maintenance needs.
• Momence specifics: resale inspections or local HOA requirements may trigger more thorough checks, and seasonal weather can influence when inspectors can access the tank.
• Typical cost in Momence: $100–$300 for a standard inspection; more if a dye test or detailed report is included.

Drain Field Evaluation and Repair

• What it includes: assessment of drain field performance, soil absorption tests, inspection of trenches and distribution lines, and recommendations for repair or replacement. In Momence, clay-rich soils or limited space can complicate repairs and extend project timelines.
• Momence specifics: a failing drain field may require staged fixes or a combination of soil amendments and field redesigns to meet local regulations.
• Typical cost in Momence: evaluation and minor repairs $2,000–$7,000; more extensive fixes or repairs to the drain field can run $7,000–$15,000+, depending on scope. Full replacement often runs $10,000–$25,000+.

Drain Field Installation or Replacement

• What it includes: site evaluation, soil tests, design of the field (trench vs. mound vs. alternative systems), permitting, and installation of the new drain field.
• Momence specifics: many properties near town limits may require a mound or alternative system if soil constraints exist; design and permitting steps are essential to comply with local health regulations.
• Typical cost in Momence: $15,000–$40,000+ for a complete installation or replacement, with larger or more complex systems climbing higher depending on site conditions.

New System Installation (Septic Tank + Drain Field)

• What it includes: full system design, soil analysis, permitting, excavation, tank and field installation, and commissioning.
• Momence specifics: local soils, lot size, and setback requirements can influence layout and price; coordination with the Kankakee County Health Department or IEPA is common.
• Typical cost in Momence: $10,000–$40,000+, with high-end mound or specialty systems reaching higher figures.

Pump and Electrical Components

• What it includes: replacement or repair of sewage pumps, control panels, float switches, and alarms; testing and calibration of all electrical components.
• Momence specifics: power supply accessibility and weather exposure can affect install time and protective enclosures needed.
• Typical cost in Momence: $800–$2,500 for pump replacement; control panels and alarms $100–$600.

Tank Access Improvements (Risers, Lids, and Add-ons)

• What it includes: adding or raising access risers, securing lids, and improving accessibility for future maintenance.
• Momence specifics: deeper tanks or hard-to-reach locations are more common in older neighborhoods, making risers a prudent upgrade.
• Typical cost in Momence: $1,000–$3,000.

Perc Test and Soil Evaluation (For New Installations or Major Repairs)

• What it includes: percolation testing and soil evaluation to confirm suitable conditions for a septic system design.
• Momence specifics: local soil profiles and groundwater considerations can drive the chosen system type.
• Typical cost in Momence: $500–$2,000 for tests; design adjustments may follow.

Permits, Fees, and Compliance

• What it includes: permit application, site visits, septic design approvals, and final inspections with the local health department.
• Momence specifics: permit costs and required inspections vary by project and municipality; timing can affect scheduling.
• Typical cost in Momence: $100–$600 in permit-related charges, plus any local impact fees.
• Preparation steps before a visit (to save time and reduce delays):
  1. Clear access paths to the septic tank area; remove snow or debris if possible.
  2. Note any recent water usage spikes (lots of laundry, irrigation, or heavy dishwasher use).
  3. Have previous service records handy (tank size, last pumping date, known issues).
  4. Confirm property survey and setback requirements with local authorities.

Official resources for guidance:

• Illinois Environmental Protection Agency (IEPA) – Onsite Wastewater Systems: https://www2.illinois.gov/epa/topics/waste-management/onsite-wastewater/Pages/default.aspx