Septic in Bald Knob, AR

Welcome to Bald Knob, where the horizon is dotted with trees, friendly neighbors, and the practical reality that many homes run on septic rather than a city sewer line. If you're touring local houses or planning a move, you'll notice septic systems are a common and sensible part of Bald Knob life. A well-kept septic is a quiet workhorse that helps your home feel comfortable and independent in town country.

Is septic common in Bald Knob? Should I expect septic if I own or buy a home?

Yes. Septic drainage is the norm for many Bald Knob homes, especially in older neighborhoods and the surrounding rural areas. Municipal sewer lines don't reach every street, so on-site septic systems are a practical, cost-effective solution that many families rely on. Some newer or specifically connected properties closer to town may tie into city sewer, but you should expect a septic system unless the listing or seller confirms a sewer hookup. Always ask for septic records, and plan a professional septic inspection as part of any home purchase.

Why homes typically use septic systems in Bald Knob

Several everyday factors come together here:

• Rural layouts and lot sizes that favor on-site treatment and drainage
• Incomplete or uneven expansion of municipal sewer across town
• Soil and groundwater conditions that, when properly designed, support a functioning drain field

High-level explanation: septic systems exist in Bald Knob to treat wastewater on-site when extending a sewer main would be costly or impractical. A properly designed system uses a buried tank and a drain field to separate solids, biologically treat the water, and safely disperse it into the surrounding soil.

Helpful reminders for Bald Knob homeowners

• Know where the tank and drain field are, and keep access clear for service
• Schedule regular pumping—roughly every 3–5 years for a typical family, more often with heavy usage or smaller tanks
• Be mindful of what goes down the drain: avoid flushing wipes, grease, solvents, or other non-biodegradable items
• Conserve water to reduce stress on the system; that includes spreading out large loads of laundry and fixing leaks promptly
• Look for signs of trouble: slow drains, gurgling sounds, wet spots or odors near the drain field

A neighborly note: the right local expertise makes all the difference in Bald Knob. Your next steps, tips, and what to expect from local pros are covered in the following sections.

Where Septic Systems Are Common in Bald Knob

Typical areas in Bald Knob that rely on septic

• Rural and semi-rural residential lots outside established city sewer service boundaries.
• Older neighborhoods that were built before municipal sewer lines expanded.
• Properties with acreage or farms where extending sewer lines isn't practical or cost-prohibitive.
• Areas where the local wastewater district hasn't deployed full municipal sewer coverage yet.

Why septic is a common choice in Bald Knob

• Limited or uneven municipal sewer expansion makes private septic the most practical option for many homes.
• Land parcels in and around Bald Knob are often well-suited to on-site systems, especially where soils drain reasonably well and there's adequate space for a drain field.
• Plumbing and home renovation costs rise when connecting to distant sewer lines; septic offers a predictable, house-by-house solution.
• Local regulations require approved on-site wastewater systems when sewer service isn't available, with inspections to protect public health and groundwater.

Common septic system types seen in Bald Knob

• Conventional gravity septic systems: standard tanks with a drain field; still the most common setup for single-family homes.
• Alternative on-site systems (when soils are challenging): mound systems or pressure-dosed drain fields used where the native soil percolates slowly or the water table is high.
• Aerobic treatment units (ATUs) and pretreatment devices: provide higher-quality effluent in areas with limited space, poorer soils, or stricter local requirements.
• Sand filters or drip irrigation components: used for special landscapes or higher-performing needs; these require proper design, permitting, and ongoing maintenance.

How to tell if your Bald Knob property uses septic

1. Look for an underground tank lid or a buried concrete/rectangular access near the yard, often with a riser visible above ground.
2. Check property records, plat maps, or your deed for a septic permit or system location; your county health unit can help locate documents.
3. If buying or renovating, ask the seller or builder for a system installation report and maintenance history.
4. If you're unsure, hire a licensed septic contractor to perform a quick evaluation or a dye test to verify drainage pathways.

Maintenance basics that apply in Bald Knob

• Pump the septic tank every 3–5 years for a typical family; exact frequency depends on tank size, household size, and wastewater volume.
• Practice water-use discipline: stagger laundry and dishwasher loads to avoid overwhelming the drain field; fix leaks promptly.
• Use septic-safe products and minimize household chemicals that can disrupt beneficial bacteria in the tank.
• Avoid planting trees or installing heavy structures over the drain field; roots can invade pipes and compacted soil can impede absorption.
• Keep a current map of the system and service records in a safe place for future inspections or sales.

Official resources and guidance

• Arkansas Department of Health – On-Site Wastewater Systems:
• EPA Septic Systems – Homeowner's Guide: https://www.epa.gov/septic
• Local authority contacts: White County Health Unit or Bald Knob City Hall can help locate district-specific requirements and records.

Septic vs Sewer: What Homeowners in Bald Knob Should Know

How septic systems differ from municipal sewer

• Septic: an on-site system that treats wastewater in your yard. A septic tank separates solids and liquids, then a drain field disperses treated effluent into the soil.
• Sewer: wastewater is carried away from your home to a centralized treatment plant. You pay taxes or utility fees for operation and maintenance, and you're not responsible for the underground infrastructure beyond your service line.

Is sewer service available to you?

• Rural Bald Knob areas rely on septic systems by default. If you're near town infrastructure, confirm with the Bald Knob utilities department or White County contact whether city sewer is available.
• If sewer is available, you'll typically face a connection decision: connect to the municipal system or maintain your septic to avoid ongoing sewer charges, repair costs, and potential permit requirements.
• Check official sources for local rules and costs: EPA's overview of septic systems and connections, and Arkansas state guidance on on-site disposal. See

Costs and long-term value

• Septic setup and ongoing maintenance are usually the homeowner's responsibility. Initial costs vary by soil, lot size, and permitting, but major repairs or replacements can be expensive.
• A sewer connection often involves a one-time hookup fee plus monthly wastewater charges. Long-term costs depend on usage, local rates, and maintenance needs.
• Consider property value and future plans. In some cases, a reliable septic with regular maintenance is a solid, lower-cost option; in others, municipal sewer offers predictable bills and shared system maintenance.

Maintenance basics that save you headaches

• Regular pumping: most systems benefit from pumping every 3–5 years, though local conditions may shift that interval. ADH OSDS guidance emphasizes keeping solids under control to protect the drain field.
• Waste and water use: spread out high-water-use tasks, fix leaks promptly, and avoid flushing non-biodegradable items, fats, oils, and chemicals.
• Protect the drain field: keep heavy equipment off the area, avoid planting deep-rooted trees nearby, and ensure proper grading and drainage.
• Inspections: schedule periodic inspections, especially if you notice slow drains, odors, or soggy soil over the drain field.
• Professional help: rely on licensed septic contractors and consult Arkansas OSDS guidance for compliance and best practices. Official resource: https://www.healthy.arkansas.gov/programs-services/topics/onsite-sewage-disposal-system-osds

Routine signs of trouble requiring professional help

• Backups, gurgling sounds in plumbing, or slow drains across multiple fixtures.
• Strong septic odors around the house or drain field.
• Wet, spongy, or unusually green soil over the drain field; standing water after rainfall.
• A looming septic failure often involves water entering the system faster than it can process it, so address unusual symptoms promptly.

Quick-response steps if you suspect a problem

1. Restrict water use to minimize load while you assess the issue.
2. Call a licensed septic professional for an evaluation and, if needed, a pumping or inspection.
3. Check local permits and ensure any repairs comply with Arkansas OSDS regulations.
4. Confirm whether sewer service is feasible or preferable in your situation and what the long-term costs would be.

Official resources for Bald Knob homeowners

• EPA septic information: https://www.epa.gov/septic
• EPA Septic Smart program: https://www.epa.gov/septic/septic-smart
• Arkansas Department of Health OSDS guidance: https://www.healthy.arkansas.gov/programs-services/topics/onsite-sewage-disposal-system-osds

Typical Septic System Types in Bald Knob

Conventional gravity septic systems

Most Bald Knob homes rely on a typical gravity-flow layout: a buried septic tank, followed by a drain field (gravel-filled trenches or beds) where clarified effluent infiltrates the soil. How it works: wastewater enters the tank, solids settle, and liquid effluent passes to the drain field by gravity. Pros: simple, lower upfront cost, easy maintenance if soils are well-draining. Cons: performance hinges on soil permeability and groundwater depth; clay soils or high water tables can cause issues without adjustments.

Pressure distribution systems (LPD)

When soil absorption is uneven or slow, a pressure distribution approach can help. A submersible pump doses small amounts of effluent under pressure into multiple laterals along the field, improving contact with the soil and reducing saturation. Pros: more uniform drainage, better performance on challenging soils. Cons: higher initial cost, ongoing pumping and electricity needs, must be serviced regularly.

Mound systems

Mounds are raised drain fields built over a sand-fill bed when native soils aren't suitable (very shallow groundwater, high clay content, or compacted subsoil). A gravel-and-sand mound sits above the natural ground, with perforated pipes below and a topsoil layer on top for vegetation. Pros: makes useable lots where traditional systems won't work. Cons: larger footprint, higher cost, more maintenance and monitoring required.

Sand filter systems

In a sand-filter setup, effluent from the septic tank flows into a contained sand filtration bed before entering the drain field. The sand layer provides an additional polishing step and helps with slowly permeable soils. Pros: improved treatment, useful where absorption is limited. Cons: requires space for the filter, ongoing maintenance, and occasional sand replacement.

Aerobic Treatment Units (ATUs)

ATUs pre-treat wastewater with aerobic bacteria, then send higher-quality effluent to the drain field. They're common where soils are marginal or lots are small, and they can allow smaller drain fields. Pros: superior treatment in difficult soils, greater flexibility. Cons: higher operating costs, regular professional servicing, and electrical dependence.

Chamber systems

Chamber systems replace traditional gravel-filled trenches with modular plastic chambers that create wide, shallow drainage paths. Pros: quicker, often less costly installation; adaptable to various site conditions. Cons: require properly engineered spacing and soil conditions; some local codes specify approved chamber types.

Drip irrigation and other alternative disposal methods

Some properties experiment with drip dispersal or landscape irrigation-based disposal. These setups are highly regulated and require professional design and oversight. Pros: potential water reuse and landscape benefits. Cons: regulatory hurdles and stricter maintenance; not universally allowed in all Bald Knob neighborhoods.

Choosing the right system for Bald Knob homes

1. Start with a soil evaluation and percolation testing to understand absorption capacity.
2. Hire a licensed septic designer or contractor familiar with Arkansas regulations and Bald Knob conditions.
3. Consider lot size, groundwater depth, and setback requirements from wells, structures, and property lines.
4. Weigh long-term maintenance and operating costs, not just upfront price.
5. Confirm permit, inspection, and installation standards with the Arkansas Department of Health and local authorities.

Resources

• Arkansas Department of Health — Onsite wastewater systems:
• EPA — Septic systems: https://www.epa.gov/septic

Common Septic Issues in Bald Knob

High Water Table and Seasonal Flooding

• What you might notice: soggy areas over the drainfield, surface wet spots after rain, slow draining toilets or sinks during wet seasons, and occasional strong sewer odors when the groundwater is high.
• Why Bald Knob is prone: the area experiences heavy spring rainfall and seasonal flooding, combined with clay-rich soils that hold water. The perched water table can push effluent back toward the distribution lines and soak-away field.
• Practical steps:
  • Conserve water during wet periods (spread out laundry, stagger showers).
  • Avoid adding large amounts of graywater at once (no dumping water-rich waste into one fixture).
  • Keep heavy equipment and foot traffic off the drainfield when saturated.
  • Schedule professional evaluation if wet soils persist; a mound or alternative design may be considered if permitted.
• Signs you should call a pro: persistent surface pooling, sewage odors near the drainfield, or backups during wet weather.
• Resources: official guidance on how septic systems handle groundwater and localized design considerations can be found at

Clay Soils and Limited Infiltration

• What you might notice: drainage is slow, wastewater appears to pool near the drainfield, and plants over the field may look stressed.
• Why Bald Knob soils matter: many yards sit on heavy clay that drains poorly. Even a well-designed system can struggle if the soil doesn't absorb effluent quickly enough.
• Practical steps:
  • Hire a licensed septic professional to perform a percolation/soil test and confirm field size requirements.
  • If infiltration is consistently slow, a professional may recommend drainfield enlargement, soil replacement, or a mound system where allowed.
  • Avoid compacting the soil above the drainfield (toe or heavy equipment).
• Signs you should call a pro: standing water in the drainfield area after rainfall, persistent dampness, or greener, more vigorous vegetation directly above the field.
• Resources: EPA septic basics at https://www.epa.gov/septic and Arkansas On-Site Wastewater guidance at https://www.healthy.arkansas.gov/programs-services/topics/on-site-wastewater.

Root Intrusion and Obstructions

• What you might notice: slow drains, gurgling sounds, backups after normal use, or roots appearing in the drain cleanout.
• Why Bald Knob you may see this: trees and shrubs planted too close to the septic system or older lines are common in many homes here; vigorous roots can invade pipes and tanks.
• Practical steps:
  • Have a camera inspection done to locate roots and obstructions.
  • Install root barriers or relocate planting away from the drainfield and sewer lines.
  • Schedule professional cleaning and repair as needed; avoid chemical drain cleaners that can damage bacteria helpful for septic function.
• Signs you should call a pro: repeated clogs despite mild use or visible roots near the access points.
• Resources: EPA care tips at https://www.epa.gov/septic and Arkansas On-Site Wastewater pages at https://www.healthy.arkansas.gov/programs-services/topics/on-site-wastewater.

Overloading the System with Water

• What you might notice: backups after a heavy laundry day, slow flushing when multiple fixtures are used, or reduced overall system performance during family gatherings.
• Why Bald Knob issues appear here: large families or transient water use bursts can overwhelm a drainfield that's already stressed by soil and groundwater conditions.
• Practical steps:
  • Space out laundry and dishwasher use; fix leaks promptly.
  • Use high-efficiency fixtures and a low-flow toilet to reduce daily load.
  • Avoid garbage disposals or limit their use to reduce solids entering the tank.
• Signs you should call a pro: frequent backups or a higher-than-normal effluent accumulation in the tank.
• Resources: EPA septic maintenance guidance at https://www.epa.gov/septic and EPA's owner's guide at https://www.epa.gov/septic/septic-system-owners-guide.

Aging Systems and Maintenance Gaps

• What you might notice: more frequent pumping is needed, signs of sludge or scum buildup, or baffles that look damaged in inspection.
• Why Bald Knob matters: many homes are older, with contractors having installed systems years ago when codes and soils knowledge differed; aging components can fail sooner in challenging soils or wet years.
• Practical steps:
  • Schedule regular pumping every 2–3 years (or as recommended by a licensed pro) and have a full tank inspection.
  • Inspect and replace effluent screens and baffles as needed.
  • Keep a simple maintenance log and address any cracks, lids, or venting issues promptly.
• Signs you should call a pro: repeated backups, foul odors, or unexplained dampness near the system.
• Resources: EPA maintenance basics at https://www.epa.gov/septic and Arkansas On-Site Wastewater program at https://www.healthy.arkansas.gov/programs-services/topics/on-site-wastewater.

Drainfield Landscaping and Soil Compaction

• What you might notice: restricted access for maintenance, heavy traffic causing soil compaction, or plants with unusual growth directly above the drainfield.
• Why Bald Knob matters: the combination of clay soils and occasional wet conditions makes the drainfield vulnerable to compaction and damage from foot traffic or vehicles.
• Practical steps:
  • Mark and protect the drainfield area; prohibit driving or heavy landscaping over it.
  • Plant shallow-rooted ground cover away from the field to reduce erosion but avoid deep-rooted trees directly overhead.
  • Use designated walkways to access the house plumbing without stepping on the field.
• Signs you should call a pro: uneven surface, sinking areas, or new wet spots developing over time.
• Resources: EPA homeowner guidance at https://www.epa.gov/septic and state guidance at https://www.healthy.arkansas.gov/programs-services/topics/on-site-wastewater.

Septic Inspection, Permits & Local Oversight

Permits and when they're needed

• In Arkansas, most onsite wastewater system installations, repairs, or modifications require a permit from the local health department. The permit helps ensure the plan matches your lot, soil conditions, and state code.
• Steps to get started:
  1. Locate your local health authority for Bald Knob (White County area).
  2. Submit the site evaluation, proposed system plan, and any required forms.
  3. Pay fees and obtain the permit before you begin work.
  4. Schedule inspections at key milestones (plan review, installation, backfill, final) and with the installer's confirmation.
• Always confirm current requirements with the local health department before contracting work.

Inspections you'll typically encounter

• Pre-installation site evaluation to verify soil suitability and setback distances.
• During installation inspections: verify tank size and location, number of chambers, baffles, cover level, and that materials meet code.
• Final inspection: confirm proper drain field placement, soil absorption, cover grading, and accessibility for future pump-outs.
• Maintenance inspections: many permits require periodic checks or pumping as part of ongoing system care.

Real estate transactions and disclosures

• A common practice is to schedule a septic inspection during a home sale to protect both buyer and seller.
• Local requirements vary; some counties encourage or require inspections and disclosure of the system's condition and past maintenance.
• If you're selling, have a current permit record and maintenance log available for the buyer and for any lender requirements.

Local oversight in Bald Knob, AR

• Bald Knob is in White County, where the local county health unit handles onsite wastewater permits and inspections.
• Contact the local health department to confirm current permit processes and approved installers in your area.
• State guidance sits alongside local oversight, so keep both state and county records up to date.

What to expect from an inspector

• The inspector will ask about current tank location, pump history, and accessibility of lids and components.
• Have a rough map of the septic system area and any landscaping near the field handy.
• Bring prior permits, maintenance logs, and pumping receipts if available; these help verify the system's history.

Maintenance and renewals

• Permits are tied to the system; keep a folder of all documents for transfers, upgrades, or future inspections.
• If you modify the use of the property (additions, baths, or heavy usage), you may need to update plans and obtain a new or amended permit.
• Regular pumping, inspections, and record-keeping simplify future transactions and ensure continued compliance with local oversight.

Resources for Bald Knob homeowners

• Arkansas Department of Health – Onsite Wastewater: https://www.healthy.arkansas.gov/programs-services/topics/onsite-wastewater
• Find official guidance and local contact information through state health resources to connect with your White County health unit and confirm current permit requirements.

Septic Maintenance for Homes in Bald Knob

Bald Knob-specific challenges

• Clay-heavy soils and variable drainage are common in central Arkansas, including Bald Knob. After heavy spring rains, groundwater can rise, saturating the absorption area and slowing infiltration.
• Tree roots from nearby oaks and other vegetation often intrusion into pipes, trenches, and the drain field. Keep roots away from the system and plan plantings with plenty of clearance.
• Flooding risk and periodic pooling around the system can lead to odors or damp patches. Ensure the system is located away from downslopes, wells, and water sources, and assess runoff pathways on your property.
• Local codes set setback and inspection requirements. Check with the Arkansas Department of Health (ADH) for current official distances and permitting guidance before work or expansion on your system. Official resources:

Routine maintenance plan

• Build a simple annual calendar:
  • Spring: inspect lids, risers, and access points; look for cracks or signs of seepage after rain.
  • Summer: monitor yard drainage and avoid heavy vehicle traffic on the drain field.
  • Fall: prepare for colder months; ensure snow and ice won't obscure access or create pressure on lids.
  • Winter: watch for freezing conditions that can impact soil around the absorption area.
• Use water efficiently year-round: spread out laundry, run full loads, install and maintain low-flow fixtures, and fix leaks promptly.
• Avoid introducing non-biodegradable items, fats, oils, and wipes into the system; these increase solids and can clog pumps and pipes.

Pumping and professional inspection

1. Hire a licensed septic professional familiar with Bald Knob soils and local codes; they'll interpret site-specific factors like drainage, root intrusion, and mound needs.
2. Determine pumping frequency based on tank size, household size, and waste water volume. Typical homes with 1,000–1,500 gallons may require pumping every 3–5 years; larger families or disposal disposals may need more frequent service.
3. During service: pump out the tank, inspect inlet and outlet baffles, check for cracks or signs of corrosion, and examine the distribution box and any effluent filters.
4. Request a written service report and add it to your home maintenance file for future reference and code compliance.

Drain field protection

• Protect the absorption area:
  • Do not drive or park on the drain field; avoid heavy equipment or construction in the area.
  • Keep trees and shrubs away from trenches; root zones can compromise pipes and reduce field performance.
  • Do not direct stormwater or excessive irrigation onto the drain field; water should be diverted away from it.
  • Limit garbage disposal use; consider composting or reducing waste to decrease solids reaching the tank.

Seasonal considerations for Bald Knob

• Spring thaw and heavy rainfall can saturate soils; if you notice gurgling sounds, damp patches, or slow drains, reduce water use temporarily and call a pro.
• Summer heat and drought can stress lawn areas around the field; keep vegetation controlled but avoid compaction from foot traffic.
• Fall leaf litter should be kept clear of the septic area to prevent blocked inlets and restricted airflow around the field.

Warning signs and quick actions

• Slow drains, gurgling toilets, strong odors near the drain field, or standing water/pools on the absorption area require prompt professional assessment.

When to call a pro

• If you notice persistent odors, wet spots around the system, sewage backups, or unusual ground dampness near the field, contact a licensed septic expert promptly.

Official resources

• Arkansas Department of Health – Onsite Wastewater Systems: https://www.healthy.arkansas.gov/programs-services/topics/onsite-wastewater-systems
• EPA – Septic Systems: https://www.epa.gov/septic

Cost Expectations for Septic Services in Bald Knob

Septic Tank Pumping and Maintenance

• What it includes: On-site pumping to remove accumulated solids, inspection of tank interior and baffles, cleaning of any filters, verification that lids, risers, and access points are sound, and notes on pumping frequency.
• Bald Knob considerations: Many homes here use 1,000–1,500 gallon tanks; rural access can affect price if driveways are long or steep or trucks must navigate tight spaces.
• Typical cost in Bald Knob: Generally $275–$500 for standard tanks; $350–$650 for larger 1,500–2,000 gallon tanks or difficult access.
• Official resources: https://www.epa.gov/septic

Septic System Inspections and Certifications

• What it includes: Visual inspection of tank, pump status, and lid; dye testing for leaks or improper discharge; camera inspection of lines if issues are suspected; a written report suitable for homebuyers or lenders.
• Bald Knob considerations: Older neighborhoods may hide cracked pipes or failing laterals; real estate transactions commonly trigger inspections and documentation.
• Typical cost in Bald Knob: Basic visual inspection $100–$250; full inspection with camera or comprehensive report $300–$500.
• Official resources: https://www.healthy.arkansas.gov/programs-services/topics/on-site-waste-water, https://www.epa.gov/septic

New System Installation or Replacement

• What it includes: Site evaluation (soil testing), system design tailored to site conditions, required permits, trench or mound installation, piping, backfill, and final functional testing.
• Bald Knob considerations: Soil variability in central Arkansas can necessitate mound or alternative systems; permitting and licensed installers are essential for code compliance.
• Typical cost in Bald Knob: Conventional 1,000 gallon gravity/trench systems often $6,000–$12,000; mound or advanced systems frequently $15,000–$40,000+.
• Official resources: https://www.healthy.arkansas.gov/programs-services/topics/on-site-waste-water, https://www.epa.gov/septic

Drain Field and Leach Field Services

• What it includes: Repair or replacement of trenches, distribution pipes, and the leach bed; sometimes field grading or seabed optimization; may involve soil restoration or dye testing to locate issues.
• Bald Knob considerations: Clay soils and shallow groundwater can drive deeper trenches or grid designs; larger repairs cost more due to excavation and backfill requirements.
• Typical cost in Bald Knob: $2,000–$8,000 for partial repair; $7,000–$15,000+ for full replacement of a failing field.
• Official resources: https://www.healthy.arkansas.gov/programs-services/topics/on-site-waste-water, https://www.epa.gov/septic

Septic System Repairs and Component Upgrades

• What it includes: Replacing or repairing baffles, risers, lids, effluent filters, cleanouts, and piping; diagnosing leaks or slow drainage; updating components for reliability.
• Bald Knob considerations: Access to buried components can affect labor time and total cost; local material availability may influence pricing.
• Typical cost in Bald Knob: $150–$1,800 depending on part and scope; labor often $75–$150/hour.
• Official resources: https://www.healthy.arkansas.gov/programs-services/topics/on-site-waste-water, https://www.epa.gov/septic

System Decommissioning or Abandonment (If you're selling or moving)

• What it includes: Pumping and cleaning the tank, proper decommissioning (filling and sealing), disconnecting lines, and providing documentation for records.
• Bald Knob considerations: Some buyers require formal abandonment documentation; local codes may dictate backfilling and disposal methods.
• Typical cost in Bald Knob: $1,000–$3,000 depending on tank type and site accessibility.
• Official resources: https://www.healthy.arkansas.gov/programs-services/topics/on-site-waste-water, https://www.epa.gov/septic