Septic in Dickson, TN

Last updated: Mar 21, 2026

Dickson is a place where friendly neighbors, big yards, and practical home care all go hand in hand. If you're looking at property here, you'll notice that septic systems are a common feature for many homes outside the city sewer lines. Is septic common in Dickson? Yes. The vast majority of homes in and around Dickson rely on on-site wastewater treatment rather than a municipal sewer connection. If you own or buy a home in this area, you should plan for a septic system unless the property is directly connected to sewer service. A quick check with the seller, your home inspector, or a local septic contractor will confirm the setup and give you a clear sense of what maintenance to expect.

Why homes typically use septic systems in Dickson

  • Rural layout and larger lot sizes: Many Dickson homes sit on space that isn't practical for a city-wide sewer system, so on-site treatment makes sense.
  • Extending sewer lines isn't always feasible or affordable: In many neighborhoods, bringing in public sewer isn't done quickly or cheaply, so septic remains the practical option.
  • Older developments and legacy properties: Lots were often built in eras when sewer service wasn't available, so septic became the standard.
  • Soils and groundwater considerations: Dickson soils and groundwater patterns often support well-designed on-site treatment, provided the system is appropriately sized and maintained.

High-level explanation (why septic exists here)

In Dickson, the steady mix of spacious lots, varying soil conditions, and the reach of municipal sewer over time has made on-site septic systems a sensible, long-standing solution. A properly designed and installed septic system treats wastewater quietly underground, protects the home, and, with regular upkeep, can serve for many years. The key is correct sizing for your household, correct installation, and a simple maintenance rhythm that fits your family's usage.

What to expect as aDickson homeowner

  • Maintenance cadence: most homes pump every 3–5 years, depending on family size and tank size.
  • Watch for signs of trouble: slow drains, gurgling pipes, wet areas or surfacing near the drain field, or odors.
  • If buying: request the most recent pumping records, system design details, and any repair history.

This is a friendly neighborhood guide to how septic works in Dickson, grounded in practical, real-world know-how you can rely on as a homeowner.

Where Septic Systems Are Common in Dickson

Map of septic coverage in Dickson, TN

Unsewered and Rural Areas Outside the City Limits

In Dickson County, many homes outside the city limits rely on septic systems because centralized sewer Service isn't widespread in rural parcels. This is especially true for standalone houses on larger lots where extending sewer lines isn't economical.

  • Typical properties: 1 to several acres with space for a drainfield.
  • Why septic here: lower density, cost considerations, and historical development patterns.
  • Direct indicators: lack of visible sewer mains on county maps and inaccurate for some older farms.

Historic Developments and Outlying Neighborhoods

Some older subdivisions and rural neighborhoods were built before sewer lines reached the area and still operate on septic systems. Even where newer sewer lines exist nearby, individual lots vary in whether a sewer connection is available or required.

  • Older construction often means septic tanks and drainfields were designed to county health standards at the time.
  • If a home predates sewer expansion, septic is often the practical option unless a public sewer connection has since been extended to that street or subdivision.

Site and Soil Conditions That Favor Septic

Soil type and groundwater depth play a major role in septic feasibility around Dickson. The same area can be well suited to septic on some lots but challenging on others.

  • Preferred conditions: well-drained loamy or sandy soils with adequate percolation rates.
  • Challenging conditions: heavy clay, high water tables, or soil with perched water can require alternative systems (for example, mound systems or advanced treatment units) approved by the local health authority.
  • Topography matters: flat to gently sloped sites are easier to drain; steep or flood-prone zones complicate drainfield placement.

Lot Size and Property Layout

Drainfield size and placement are driven by soil tests and local codes. Larger lots can offer more flexible drainfield siting and setback options, reducing the risk of system issues from trees, drives, or structures.

  • Space enables conventional systems with compliant setback distances.
  • Trees and shallow root zones should be planned around to minimize interference with the drainfield.

How to Tell if Your Dickson Property Uses Septic

  • Look for the absence of sewer mains on your street and in utility maps.
  • Check around the property for a septic tank lid, manholes, or a drainfield area, and review any past septic pumping records.
  • Review any property surveys or deed notes that reference on-site wastewater systems.

Steps to Verify and Prepare

  1. Contact the Dickson County Health Department to confirm whether your property has public sewer service or relies on a septic system.
  2. Review property records for permits or notices related to septic installation and maintenance.
  3. Hire a licensed septic contractor to perform a site evaluation or system inspection if you're buying a home or planning a replacement.
  4. If you anticipate sewer expansion, discuss timelines and connection options with the health department and the city or district responsible for sewer service.

Official Resources

  • Tennessee Department of Environment and Conservation (TDEC) – Onsite Wastewater Program:
  • Dickson County Health Department:
  • U.S. Environmental Protection Agency – Onsite Sewage | Septic Systems: https://www.epa.gov/septic

Septic vs Sewer: What Homeowners in Dickson Should Know

How septic systems work in Dickson

In Dickson, many homes rely on on-site septic systems. A typical residential setup includes a septic tank and a drain field. Wastewater flows into the tank, solids settle to the bottom, and fats and oils float to the top. The clarified liquid then exits to the drain field where soil treats and disperses it. Proper tank sizing, soil conditions, and usage habits determine performance and longevity. Regular maintenance (pump, inspect, protect) is essential to prevent failures.

Sewers and sewer lines in Dickson

If your street has a municipal sewer system, your home may be connected or eligible to connect. Connecting to sewer means the utility takes responsibility for waste treatment, and you'll receive a monthly sewer bill. Costs can include connection fees, meters, trenching, and street restoration. If you're not yet connected or if a connection isn't available, your property will rely on a septic system. Neighborhood updates or zoning changes can influence timing and feasibility of sewer connections.

Practical differences at a glance

  • Installation and connection costs: septic setup is a one-time system install; sewer connection involves taps, meters, and potential street work.
  • Ongoing maintenance: septic requires periodic pumping and inspections; sewer bills cover wastewater management through the utility.
  • Maintenance responsibility: septic homeowners manage their system; sewer customers rely on the utility.
  • Environmental and property impacts: improper septic care can cause backups or groundwater concerns; sewer connections reduce on-site risk but add monthly charges.
  • Property value and planning: converting to sewer can affect home value, permits, and landscaping plans.

When to connect to sewer vs keep septic

  1. Check sewer availability for your property with local authorities (Dickson County or City of Dickson public works or utility).
  2. Obtain a cost comparison: upfront connection costs vs long-term sewer bills and potential septic system replacements.
  3. Consider your home's size and future plans (adding bedrooms, changes in water use).
  4. Consult a licensed septic contractor or civil engineer to evaluate soil, drain-field capacity, and feasibility of connection.
  5. Review local code requirements for permitting, inspections, and any required repairs if you stay on septic.

Maintenance basics

  1. Schedule pumping every 3–5 years (adjust for tank size and household use).
  2. Limit solids and fats: use a garbage disposal sparingly, avoid flushable wipes, and don't pour greases or harsh chemicals down drains.
  3. Use water-efficient fixtures to reduce load on the system.
  4. Protect the drain field: avoid parking or heavy equipment on the area; plant shallow-rooted vegetation only; keep trees and large roots away.
  5. Have an annual inspection by a qualified septic service—check tank, baffles, and the drain field condition.
  6. If you notice slow drains, gurgling sounds, or odors, contact a professional promptly to prevent a more costly failure.

Signs your septic needs attention

  • Slow drainage or frequent backups in sinks, toilets, or showers
  • Foul odor near the septic tank, drain field, or plumbing
  • Standing water or very lush grass over the drain field
  • Unusual wet spots in the yard or sewage smells after rainfall
  • Repeated pumping is needed sooner than expected

Official resources

Typical Septic System Types in Dickson

Dickson soils and groundwater conditions vary, but homeowners in this area typically encounter several common septic system types. Each has its own installation needs, maintenance requirements, and suitability depending on soil depth, percolation, and lot size. Here's a practical overview to help you recognize what you might see on local properties.

Conventional septic systems (gravity flow)

  • How it works: A septic tank separates solids from effluent, which then drains by gravity through perforated pipes into an underground drain field. The soil beneath and around the field provides final treatment.
  • Best fit: Properties with adequate soil depth, good percolation, and a well-sized drain field.
  • Pros: Simple design, usually lower upfront cost, straightforward maintenance.
  • Cons: Performance hinges on soil quality; poor soils or high water tables can limit suitability.

Conventional systems with pressure distribution

  • How it works: Similar to gravity systems, but uses a pump and small-diameter laterals to distribute effluent evenly across trenches, improving performance in uneven or shallow soils.
  • Best fit: Sites with variable soil conditions or restricted trench depth.
  • Pros: More uniform dosing, can extend usable area on marginal land.
  • Cons: Higher installation cost; requires regular system servicing and a functional pump.

Aerobic Treatment Units (ATU) and compact pretreatment systems

  • How it works: An ATU uses forced aeration to treat wastewater before it enters the drain field, producing higher-quality effluent than a conventional tank.
  • Best fit: Soils with limited treatment capacity, tight lots, or sites where a conventional drain field isn't easily achievable.
  • Pros: Greater effluent quality, can permit smaller or alternative field designs.
  • Cons: Requires electricity and regular professional service; maintenance costs are higher than conventional systems.

Mound systems

  • How it works: Used when the native soil isn't suitable for a drain field. A raised portion (the "mound") provides an above-ground sand/soil bed for effluent disposal.
  • Best fit: Shallow soil, high groundwater, or poor percolation conditions.
  • Pros: Enables septic disposal in challenging sites; compliant with many regulatory requirements when properly designed.
  • Cons: More space needed, higher installation and maintenance costs, more complex upkeep.

Sand filter systems

  • How they work: Treated effluent from a septic tank passes through a buried sand bed (often as a secondary disposal step) to improve final treatment before infiltration.
  • Best fit: Areas where the native soil provides limited treatment or where enhanced reliability is desired.
  • Pros: Improved effluent quality; can expand viable drain-field area.
  • Cons: Needs proper design and moisture/maintenance planning; ongoing maintenance is essential.

Drip irrigation and evapotranspiration (ET) disposal systems

  • How they work: Treated effluent is distributed in controlled amounts either to shallow subsurface drip lines or to an ET bed where evaporation and plant uptake remove moisture.
  • Best fit: Small lots, sensitive landscapes, or sites where conventional drain fields aren't feasible.
  • Pros: Efficient water use, attractive landscaping opportunities in some layouts.
  • Cons: Not available everywhere; requires careful design, permit adherence, and ongoing maintenance.

Holding tanks and other alternatives

  • How they work: In some seasonal homes or special cases, holding tanks store wastewater until it can be hauled or connected to a proper disposal system.
  • Best fit: Temporarily vacant properties, certain commercial applications, or regulatory constraints.
  • Pros: Flexible timing for disposal; no drain field required on site.
  • Cons: Frequent pumping needed; space and odor considerations; stricter regulatory oversight.

How to determine the right system for your Dickson property (4-step approach)

  1. Assess soil and site conditions: get a percolation test and a site evaluation from a licensed designer or local health department.
  2. Check lot size and groundwater depth: shallow soils or high water tables often point to mound, sand filter, or ATU options.
  3. Review local regulations and permitting: confirm what designs are approved by Dickson County and your design professional.
  4. Plan for long-term maintenance: understand pumping schedules, filter cleaning, and yearly service requirements.

Maintenance basics

  • Pump out solids every 2–5 years for conventional and ATU systems (check local guidance).
  • Avoid flushing fats, oils, solvents, or nonbiodegradable items.
  • Protect the drain field from heavy traffic, parking, and compacting activities.
  • Water-efficient fixtures help extend drain-field life.

Official resources

Common Septic Issues in Dickson

Soil and site limitations in Dickson

  • Dickson area soils often include heavy clay that slows infiltration, increasing the risk of drain-field saturation.
  • Wet seasons and heavy rainfall push the hydraulic load on OSDS, making proper sizing and placement crucial.
  • Shallow groundwater or perched water can limit leach-field performance, so correct depth and separation are essential.
  • Local drainage patterns and slope affect how surface water interacts with the septic system.

Leach field saturation and failure

  • Signs to watch for: damp or water-saturated turf above the field, unusually lush patches, or a sewage odor near the drain field.
  • Saturation reduces the soil's ability to absorb effluent, which can cause effluent to surface or back up into the home.
  • Common causes in Dickson: an undersized field for the home's wastewater load, improper field location, or soils with poor percolation characteristics.

Tank and system components: common failure modes

  • Cracked or blocked baffles in the septic tank let solids into the leach field, leading to clogging and early field failure.
  • Pump failures or failed alarms on any aerobic/advanced treatment components disrupt proper dosing and treatment.
  • Uneven effluent distribution (one area of the field getting more load than others) accelerates failure of portions of the drain field.

Tree roots and landscaping near the system

  • Tree roots from nearby mature trees can infiltrate pipes, tees, and distribution lines, causing blockages and backups.
  • Heavy landscaping or vehicles over the drain field compact soils and reduce infiltration.
  • Best practice: keep the drain field visible and free from heavy foot or vehicle traffic; plant shallow-rooted vegetation only far from the field.

Household water use and maintenance habits

  • Large daily water use, frequent garbage disposal use, and heavy laundry loads can overwhelm the system.
  • Harsh chemicals, solvents, oils, and certain cleaners disrupt beneficial bacteria and treatment performance.
  • High-suds soaps and cleaners can hinder settling and filtration in the tank.

Practical steps for Dickson homeowners (do-this-now and plan)

  1. Observe: note slow drains, gurgling, or wet spots above the drain field.
  2. Schedule a professional inspection, including a tank-baffle check and pump status evaluation.
  3. If the tank is near one-third sludge depth, plan a pump-out (per local guidance).
  4. Establish a regular maintenance schedule (typically every 3–5 years, adjusted for household size and wastewater volume).
  5. Protect the drain field: avoid parking or weight over the area; limit landscaping with deep roots nearby.

When to call a professional

  • Persistent odors, damp zones, or backups across multiple fixtures.
  • Visible effluent surfacing on or near the drain field.
  • Alarm or control-panel issues, odd pump behavior, or repeated maintenance needs.
  • After heavy rainfall or a flood, as the field may be more vulnerable to saturation.

Helpful references

Septic Inspection, Permits & Local Oversight

Local oversight in Dickson County

  • In Dickson County, the local health department administers on-site sewage disposal system (OSDS) permits, reviews plans, and conducts inspections. State rules set the standards, but a county office handles the day-to-day oversight, fees, and scheduling.
  • Always verify current requirements with the Dickson County Health Department, since processes can change and some neighborhoods may have unique rules.

When a permit is required

  • New septic systems: a formal permit and design approval are typically required before work begins.
  • System repairs or replacements: a permit is usually needed for substantial repairs or replacing a failing component.
  • Major alterations or upgrades: anything that changes the layout, capacity, or soil treatment area generally requires an updated permit.
  • Property transfers: many cases call for an OSDS transfer inspection or disclosure to protect buyers and sellers.
  • Emergency or specialized work: confirm whether a temporary or expedited permit applies in your situation.

Step-by-step: how to obtain a permit

  1. Contact the Dickson County Health Department to confirm the exact permit type and fee schedule for your project.
  2. Engage a licensed septic designer or engineer if your project requires a formal plan (design, setbacks, soil interpretation).
  3. Prepare and submit required documents: site evaluation, soil tests, system design plans, property records, and any forms the county asks for.
  4. Await plan review and approval. The review may trigger a need for additional information or revisions.
  5. Receive permit approval and schedule installation with a licensed installer, ensuring all work aligns with the approved plan.

What inspections cover

  • Pre-construction soil evaluation and layout verification: confirm site suitability and that the planned system matches the soil/results.
  • In-progress installation inspections: verify trench or bed placement, backfill methods, and connection to the house or building.
  • Final inspection: confirm proper operation, proper sealing, grading, and site restoration before backfill is considered complete.
  • Transfer or post-installation follow-up: some projects require a final transfer inspection or post-installation confirmation to ensure long-term performance.

Property transfer and disclosures

  • When selling or purchasing a home, a septic disclosure or OSDS inspection is common. The buyer (or lender) may request documentation of permits and final inspections.
  • Keep copies of all permits, design plans, and inspection reports in the closing packet so the next owner understands the system and any maintenance needs.

Common pitfalls and practical tips

  • Don't start work without confirming the permit path with the local health department; unpermitted work can lead to fines, required undoing, or costly delays.
  • Use licensed professionals: installers, designers, and engineers familiar with Tennessee and Dickson County rules help prevent delays.
  • Plan for weather-related delays and soil conditions, especially in wet seasons when inspections may be rescheduled.
  • If you're unsure about the permit status, call the Dickson County Health Department first to avoid missteps.

Helpful resources

  • Dickson County Health Department OSDS information and contact details (official): search "Dickson County Health Department onsite septic Dickson County TN."
  • Tennessee Department of Environment & Conservation (TDEC) – On-Site Sewage Disposal Systems: official guidance and state standards (start at tn.gov/environment).
  • Tennessee Department of Health (TDH) – Environmental Health / On-site Sewage programs: official program information (start at tn.gov/health).
  • Dickson County government – general forms and office contacts for health and building services: https://www.dicksoncountytn.gov/

Septic Maintenance for Homes in Dickson

Dickson-specific soil and groundwater realities

  • Dickson County soils vary from clay-heavy zones to loamy patches, and some areas sit close to the water table, especially after wet winters. This makes drainfield performance more sensitive to rainfall and seasonal groundwater fluctuations.
  • Proximity to creeks and the Duck River means occasional high-water events can saturate soils for days or weeks, slowing absorption and increasing the risk of surface backups if a system is already near capacity.
  • Tree roots, limestone bedrock, and uneven terrain around older lots can interfere with drainfield performance. Plan for space to keep roots and heavy traffic away from the absorption area.

Regular pumping and professional inspections

  • Most residential tanks range around 1,000–1,500 gallons. In Dickson's clay soils or homes with high daily wastewater loads, more frequent pumping may be needed.
  • A licensed septic service should perform a full pump and inspection every 3–5 years as a baseline. In Dickson, especially with older systems or seasonal groundwater challenges, leaning toward the 3-year mark is prudent.
  • Inspections should include checking the inlet and outlet baffles, examining the scum and sludge layers, and evaluating the condition of the drainfield. If you haven't kept records, start a file this year and bring it to every service.

Drainfield protection in Dickson

  • Keep the drainfield area free from vehicles, sheds, or heavy equipment. Compaction from foot traffic or vehicle tires can reduce infiltration.
  • Plant only shallow-rooted grasses over and near the drainfield. Avoid trees or shrubs with aggressive roots nearby.
  • Do not install a septic effluent pump or reserve area directly on top of the drainfield unless a licensed designer specifies it. Any fill or grading around the field should be done with professional guidance.
  • Water pooling, wet spots, or a strong sewage odor near the drainfield are red flags. If you see them, call a pro sooner rather than later.

Water use and fixture efficiency

  • Stagger high-water-use activities. Do multiple laundry loads only when you have a full day to allow the tank to rest, and avoid simultaneous dishwasher and shower surges.
  • Fix leaks promptly. A dripping faucet or running toilet can waste hundreds of gallons monthly and push the system toward overload.
  • Use high-efficiency toilets and fixtures. Lower daily wastewater input helps compensate for Dickson's seasonal soil conditions.
  • Be mindful of chemicals and cleaners. Harsh cleaners or large quantities of antifreeze, paints, solvents, or grease can disrupt beneficial bacteria and harm the system.

Seasonal maintenance checklist

  • Spring
    • Inspect around the drainfield for soggy areas or new odors after winter moisture.
    • Schedule a pumping/inspection if it's been close to the 3-year window.
  • Summer
    • Avoid heavy vehicle traffic or storage over the drainfield during dry spells when the soil is brittle.
    • Run water through the system evenly; don't dump large quantities of greywater into one fixture at once.
  • Fall
    • Prepare for the wet season: ensure gutters and drainage direct runoff away from the drainfield.
    • Check for any cracks or signs of damage to lids, manholes, or covers.
  • Winter
    • Keep loading on the system steady but moderate during freeze-thaw cycles; extreme cold can reduce soil temperature and slow absorption.
    • If you have seasonal occupancy, plan a professional check before peak usage months.

Quick-start maintenance plan ( Dickson-focused)

  1. Schedule a professional pump and inspection in the next 6–12 months, especially if you're nearing 3–5 years since the last service.
  2. Track all wastewater-related activities and repairs in a dedicated file.
  3. Implement water-saving measures: low-flow fixtures, smaller loads, and leak repairs.
  4. Inspect the drainfield area after heavy rains for pooling, odor, or damp spots.
  5. Limit traffic, farming, or landscaping work over the drainfield.
  6. Review local guidance and state requirements for onsite wastewater (see resources below) and stay compliant.

Signs trouble and immediate steps

  • Slow drains, gurgling sounds, or toilets taking longer to flush.
  • Wet, lush spots or a strong sewer odor over the drainfield.
  • Backups in sinks or toilets after multiple showers or laundry cycles.
  • If you notice these signs, contact a licensed septic professional promptly and avoid using the system heavily until evaluated.

Resources:

Cost Expectations for Septic Services in Dickson

Septic Tank Pumping

  • What it includes: removal of accumulated sludge and scum, cleaning of the tank, inspection of baffles and inlet/outlet pipes, and a basic assessment of the drain field after pumping.
  • Dickson-specific notes: many Dickson-area homes use 1,000–1,500 gallon tanks. Access can vary based on lot layout and any older lids or risers; having risers installed can reduce access time and cost.
  • Typical cost in Dickson: roughly $275–$700, with most homeowners paying about $400–$500. Larger tanks or difficult access can push toward the higher end.

Septic Tank Inspection

  • What it includes: visual inspection of tank and components, checking for cracks or signs of leakage, verifying that baffles are intact, and assessing the need for pumping. Optional: camera inspection of piping for laterals.
  • Dickson-specific notes: in older Dickson homes, inspections are especially important to identify failing baffles or cracking before a failure occurs; many local properties require inspection prior to any repair or permitting.
  • Typical cost in Dickson: standard inspection $100–$350; camera or more thorough evaluation $250–$550.

Drain Field / Leach Field Services

  • What it includes: evaluation of drain field performance, moisture/odor assessment, dye tests when appropriate, and consultation on repairs or replacements. May involve diagnostics to determine if the field is failing or blocked.
  • Dickson-specific notes: soils around Dickson can vary, and some parcels may need field extensions, replacement, or alternative designs (see mound options) due to soil permeability or storage capacity.
  • Typical cost in Dickson: inspection $150–$350; repairs $2,000–$8,000; full drain-field replacement often $7,000–$25,000.

Drain Field Mound System Services

  • What it includes: assessment and maintenance of mound components (loading/ventilation, sand layer, gravel bed, and distribution pipe), site preparation, and any repairs or topping of the elevated system.
  • Dickson-specific notes: mound systems are more common in sites with less favorable native soils; in Dickson, a site evaluation by the health department is usually needed to determine suitability.
  • Typical cost in Dickson: installation of a new mound system often $12,000–$25,000; routine maintenance or component repairs $200–$500 per visit.

Septic System Maintenance Plans

  • What it includes: scheduled pumping, periodic inspections, pump chamber checks, alarm testing, and recommendations for replacement timelines.
  • Dickson-specific notes: a planned maintenance approach helps manage aging systems common in older Dickson neighborhoods and aligns with local permitting requirements.
  • Typical cost in Dickson: annual plans $100–$300 per year, depending on the number of visits and included services.

Access Lids, Risers, and Baffle Repair

  • What it includes: installing or upgrading risers for easier future access, replacing cracked or missing lids, and repairing or replacing failing baffles inside the tank.
  • Dickson-specific notes: installing risers is a practical option in many Dickson homes to simplify future service and inspections.
  • Typical cost in Dickson: riser installation $300–$1,000; lid replacement $100–$300; baffle replacement $200–$600.

Emergency Septic Services

  • What it includes: 24/7 response for backups, overflows, or sudden system failures; expedited pumping and temporary containment as needed.
  • Dickson-specific notes: backups can occur during wet seasons or after heavy use; response times vary by provider and location.
  • Typical cost in Dickson: trip fee $150–$350 plus pumping and any needed repairs; after-hours rates may apply.

Perc Tests and Soil Evaluations for New Systems

  • What it includes: soil evaluation and percolation testing to determine feasible septic design; documentation used for permitting.
  • Dickson-specific notes: local health department approvals are common in Dickson County; results guide whether a conventional or alternative system is required.
  • Typical cost in Dickson: soil evaluation $1,000–$3,000; percolation tests $400–$1,500 depending on site complexity.

How to prepare for service (quick steps)

  1. Locate all access lids and note any buried or blocked areas.
  2. Minimize water use the day before a pumping or inspection to get accurate readings.
  3. Keep pets indoors and clear a path for technicians.
  4. List any odors, backups, or wet spots you've noticed.

Official resources

  • Tennessee Department of Environment and Conservation – Onsite Wastewater Program:
  • U.S. Environmental Protection Agency – Septic Systems: https://www.epa.gov/septic