Septic in Ostrander, OH

Last updated: Mar 21, 2026

Welcome to Ostrander—a close-knit Ohio village where the pace stays friendly and your yard opportunities feel a little endless. You'll notice many homes with neat lawns, mature shade trees, and driveways that hint at practical, straightforward living. In this community, private septic systems are a common, sensible part of everyday life.

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

Yes. In Ostrander, and in many surrounding parcels, septic systems are a normal part of single-family homes, especially where municipal sewer service isn't available or hasn't been extended. If you own or are buying a home here, you should plan on it either already having a septic system or being designed to operate one. When you're evaluating a property, ask for the septic history—last pump date, recent inspections, and the current tank and field status. A quick review of a recent permit or inspection can save headaches later and help you budget for maintenance.

Why homes typically use septic systems in Ostrander

  • Rural layout and lot sizes: Many Ostrander homes sit on parcels where extending sewer mains isn't practical or cost-effective, making on-site treatment the most sensible option.
  • Local soil and drainage realities: On-site systems work with how water and soil behave on typical Ostrander properties, provided they're properly designed and well cared for.
  • Ownership model and cost considerations: A private septic system gives homeowners control over wastewater management and can be more economical to install than full municipal sewer hookup in older neighborhoods.

High-level explanation (why septic exists here)

On-site septic systems evolved as the practical solution for handling wastewater where centralized sewer service isn't readily available. A well-designed septic system lets wastewater break down and drain safely on the property, protecting wells, streams, and your yard. For Ostrander homes, this means a system that's appropriately sized for your house, properly installed, and regularly maintained. The key here is planning for routine care—pumping, inspections, and avoiding the things that clog filters and drain fields.

As a local neighbor and trusted septic professional, I've walked many Ostrander driveways—from first-time buyers to long-time residents—through the basics of care and maintenance. A simple, proactive approach now saves surprises later.

This quick reality check helps you move forward with confidence as you plan and manage your Ostrander septic system.

Where Septic Systems Are Common in Ostrander

Map of septic coverage in Ostrander, OH

Rural residential areas outside sewer lines

In Ostrander, many homes sit outside centralized sewer service, especially on the village's outskirts and surrounding rural parcels. The combination of farm-friendly land use, rolling terrain, and the costs of extending mains across farmland means on-site systems remain a practical, common option. Septic systems give homeowners reliable wastewater treatment without the need for immediate sewer expansion, which can be slow and expensive in small town settings.

Zoning and land use patterns

Ostrander's mix of rural residential and agricultural zoning supports larger lots and varied development patterns. With more space between homes, developers and owners can choose appropriate OSTDS designs that fit the site. Older homes may have gravity-fed septic tanks and drained fields, while new builds often use more modern treatment units or mound systems when soils or groundwater conditions require them. The result is a community where septic use aligns with low-density suburbs and countryside land use rather than dense urban infrastructure.

Soil conditions and site factors that favor OSTDS

  • Soils with good percolation, such as loam and sandy loam, tend to absorb and treat effluent effectively, supporting reliable septic performance.
  • Heavy clay, perched water tables, or proximity to bedrock can complicate absorption and may necessitate alternative designs (e.g., mound or sand-filter systems) and more careful siting.
  • Depth to groundwater and seasonal water table fluctuations influence tank placement, setback distances, and field layout.
  • Siting decisions are guided by soil test results and site evaluations; a qualified septic professional should perform perc tests and soil descriptions to determine system type and size.

Areas with or near municipal sewer service

  • In Ostrander's core, sewer lines are limited, so most homes rely on OSTDS. If a future extension plan progresses, the local health district and village officials determine connection options, costs, and any required upgrades.
  • For homeowners considering whether to connect, factors include the distance to existing mains, the impact on property value, and regulatory requirements for conversion from private septic to public sewer.

Maintenance realities for Ostrander septic systems

  • Regular pumping and inspection are essential. A typical homeowner with normal usage should plan on every 3-5 years, but a newer or heavily used system may require more frequent service.
  • Water use matters: spread out loads, fix leaks promptly, and use efficient fixtures to reduce stress on the drain field.
  • Use septic-safe products and minimize flushing non-biodegradable items, fats, oils, and harsh chemicals down sinks and toilets.
  • Protect the drain field: keep heavy equipment off the area, avoid driving over the system, and plant only shallow-rooted vegetation above or near the field to prevent root intrusion.
  • Watch for signs of trouble (gurgling sounds, odors, wet spots, lush green growth over the drain field) and have a professional evaluate promptly.

Practical steps for Ostrander homeowners

  1. Locate and map your septic system components (tank, lids, and drain field) and keep records of maintenance.
  2. Schedule professional inspections and pumping with a licensed OSTDS contractor familiar with Ohio soils and local conditions.
  3. Plan around seasonal conditions when performing soil tests or field work to avoid compromising the absorption area.
  4. Use a licensed contractor for any upgrades or repairs; avoid DIY work that could affect system performance.

Official resources and guidance

Septic vs Sewer: What Homeowners in Ostrander Should Know

How sewer and septic systems work in Ostrander

In Ostrander, homes get either municipal sewer service or a private septic system. A sewer-connected home sends wastewater to a city or district treatment plant, while a septic system treats water on-site in a buried tank and drainage field. Understanding which path you're on helps you plan maintenance, budget correctly, and protect your property.

Are you on sewer or septic? Quick checks

  • Check your bill: a sewer bill from the local utility means you're on sewer; no regular septic pumping bill typically means you're on septic.
  • Look at the property records or contact your township or county auditor to confirm the wastewater system type.
  • If you're considering a home purchase, ask the seller for the current wastewater arrangement and any recent maintenance records.

Cost and maintenance differences

  • Sewer-connected homes:
    • Ongoing monthly or quarterly sewer charges as part of your utility bill.
    • Generally no routine on-site pumping, but you pay for system reliability through the utility.
  • Septic system homes:
    • Regular pumping is essential—typical intervals are every 3–5 years, depending on usage, family size, and tank size.
    • Replacement or major repairs can range from several thousand to over twenty thousand dollars, depending on the issue and soil conditions.
    • Annual maintenance tasks include careful water use and avoiding harmful substances entering the system.

Pros and cons for Ostrander homeowners

  • On sewer:
    • Pros: predictable monthly costs, no on-site tank maintenance, fewer on-site restrictions.
    • Cons: potential rate increases, dependence on utility service reliability.
  • On septic:
    • Pros: independence from utility rates, potential for lower long-term monthly costs.
    • Cons: requires discipline with water use, regular pumping, and protection of the drain field; failures can be costly.

Signs of trouble (sewer and septic)

  • Slow drains, frequent backups, or gurgling sounds in plumbing.
  • Wet, spongy spots or foul odors over the drain field (septic).
  • Strong sewage smell in the home or yard, and backups in toilets or fixtures.
  • For sewer users: unexplained spikes in municipal charges or notices about sewer capacity or maintenance.

What to do next: action steps by system type

  1. If you're on sewer
  2. Maintain clear, efficient plumbing: install bath and kitchen fixtures to minimize clogs.
  3. Avoid root intrusion near any access points by keeping vegetation away from sewer lines.
  4. Report persistent wet areas or odors to the local utility or health department promptly.
  5. If you have a septic system
  6. Schedule pumping every 3–5 years (more often with small tanks or high usage).
  7. Use water efficiently: spread out heavy laundry and dishwashing loads; fix leaks promptly.
  8. Protect the drain field: plant only grass nearby, don't park vehicles or build structures over the field, and keep sump pump discharge away from it.
  9. Be mindful of what goes into the system: avoid flushing wipes, solvents, paints, grease, or chemicals that disrupt bacteria.

Quick maintenance checklist

  • Schedule the next septic pump date and set reminders.
  • Use water-saving fixtures and space out high-volume uses.
  • Inspect for signs of leakage or soggy areas near the drain field.
  • Keep records of maintenance, repairs, and any sewer notices from the utility or health department.
  • Know your local regulations and recommended practices via official guidance.

Learn more (official resources)

Typical Septic System Types in Ostrander

Conventional septic systems (tank and drainfield)

  • How it works: Waste flows into a buried septic tank where solids settle; clarified effluent exits to a buried drainfield in permeable soil for final treatment.
  • Best for: Homes with deep, well-drained soil and adequate space for a drainfield.
  • Pros: Simple, proven design; typically the lowest upfront cost among options.
  • Cons: Requires suitable soil conditions; performance declines with high water tables, clayey soils, or poor soil drainage.
  • Maintenance: Schedule a professional inspection every 3–5 years and pumping every 3–5 years (more often for high-usage homes). Practice water-conserving habits, avoid driving or landscaping over the drainfield, and plant only shallow-rooted grasses nearby.

Mound systems (raised septic mound)

  • How it works: A conventional tank plus a raised mound of imported sand/soil above the natural grade, often with a dosed distribution system.
  • Best for: Shallow soils, high groundwater, seasonal perched water, or limited suitable absorption area.
  • Pros: Makes drainage possible where native soil isn't adequate.
  • Cons: Higher installation and repair costs; more maintenance requirements; relies on electricity for dosing in many setups.
  • Maintenance: Regular inspections by a licensed pro; protect the mound from compaction and heavy equipment; keep the area free of tree roots and excessive landscaping.

Aerobic Treatment Units (ATUs)

  • How it works: Mechanically aerated treatment chamber that reduces organic matter before discharging to a drainfield or mound.
  • Best for: Properties with marginal soil quality or tight lots where conventional drainfields aren't feasible.
  • Pros: Higher level of effluent treatment; can extend the life of a small or marginal drainfield.
  • Cons: Higher ongoing operating costs and more frequent service needs; potential noise or odor if not properly maintained.
  • Maintenance: Require regular service by a licensed provider (often under a maintenance contract); annual checks of the aerator, pump, and alarms; ensure electricity is reliable.

Sand filters and other secondary treatment options

  • How it works: Pre-treated wastewater passes through an engineered filter bed (sand, peat, or other media) before disposal.
  • Best for: Sites with limited drainfield area or slow soil absorption but where higher treatment is desired.
  • Pros: Flexible design; can improve effluent quality before disposal.
  • Cons: Larger footprint; usually higher initial cost and more ongoing maintenance.
  • Maintenance: Annual system evaluation; keep the area around the unit clear of heavy traffic and debris; monitor for clogging or backup signs.

Drip irrigation and alternative distribution methods

  • How it works: Treated effluent is distributed through buried tubing or other low-pressure systems to a designated absorption area.
  • Best for: Special lot layouts, landscaping needs, or where conventional trenches aren't ideal.
  • Pros: Water-efficient and adaptable to sloped terrain.
  • Cons: More complex design and monitoring; requires professional installation and regular filter checks.
  • Maintenance: Regular emitter and filter inspections; avoid trench compaction; protect lines from damage during gardening or digging.

How to identify your system type and what to do next

  1. Check the property deed, permits, or maintenance records to see what was approved for your lot.
  2. Look for telltale components: a concrete or fiberglass tank, a distribution box, a mound, an ATU cabinet, or a sand filter unit.
  3. If you're unsure, hire a licensed septic contractor or contact your local health department to confirm the system type and current condition.

Official resources

Common Septic Issues in Ostrander

Soil and Drainfield Limitations

  • Ostrander sits in a central Ohio setting where many soils are clay-rich with slower infiltration and a tendency toward perched groundwater in wet seasons. Heavy clay layers and limited downward flow can restrict effluent absorption, causing surface damp spots, greener patches over the drainfield, or backups if the system isn't designed for slower absorption.
  • Unique local risk: spring rains and seasonal wetness can keep the soil moist around the drainfield longer, reducing the field's capacity to treat effluent and accelerating field failure if the system is undersized.
  • What to do (steps):
    1. Schedule a professional soil evaluation and percolation test before any new installation or replacement.
    2. If tests show poor absorption, consider an alternative design (mound system, advanced treatment unit, or larger drainfield) per local regulations.
    3. Follow a proactive maintenance plan to prevent solids overload and protect field life.

Water Table and Seasonal Moisture

  • Ohio's climate brings a seasonal rise in groundwater, and Ostrander's spring and rainy periods can keep the subsurface wetter longer. This reduces drainage capacity and can lead to surface wet spots or slow drainage in the home.
  • Why Ostrander-specific: areas near wetlands or with perched water can repeatedly challenge even properly sized systems if not sited and designed for wet conditions.
  • Mitigation tips:
    • Avoid siting new drainfields in areas known to flood or remain saturated after rains.
    • Use a licensed designer to determine whether a mound or ATU (advanced treatment unit) is appropriate for your lot.
    • Maintain appropriate setbacks from wells, streams, and property lines per code.

Tree Roots and Landscape Interference

  • Mature trees and their roots can infiltrate or damage septic lines and the distribution field, especially when roots reach the trench area or the tank effluent lines.
  • Local landscape reality: Ostrander yards may feature well-established trees whose roots extend into near-field zones, increasing the risk of cracking pipes or clogging laterals.
  • Prevention and care:
    • Plant near-field zones only after consulting a pro about root-zone distances.
    • Install root barriers if trees must be kept nearby.
    • Regularly inspect for signs of slow draining, gurgling, or damp patches that could indicate root intrusion.

Aging Systems and Maintenance

  • Homes built in earlier decades may have smaller tanks, degraded baffles, or aging distribution components. As tanks settle and baffles weaken, solids can pass into the field, reducing performance.
  • Maintenance essentials:
    • Pump the septic tank every 3–5 years, or per professional advice based on usage.
    • Have baffles, effluent filters, and pumping records checked during service visits.
    • Inspect the leach field for signs of distress (soft spots, odors, lush green patches) and address early before failure.
  • Common failure signals: persistent odors, slow drains, sewage backups, or soggy yard areas over the drainfield.

Household Water Use and Plumbing Habits

  • High occupancy, frequent use of garbage disposals, or large-volume water draws can overload the system, especially with older tanks or limited field area.
  • Smart habits:
    • Spread out laundry and avoid running multiple high-demand loads back-to-back.
    • Install and use water-saving fixtures; minimize disposals of grease, wipes, feminine products, and chemicals into the system.
    • Use the trash and compost bin for non-septic-friendly waste to reduce solids in the tank.

When to Call a Pro and Local Regulations

  • Call a licensed septic contractor if you notice backups, odors, slow draining, or standing water near the drainfield.
  • Get a professional evaluation before any major changes, repairs, or replacements.
  • Ostrander adheres to Ohio EPA guidelines for setbacks, sizing, and design; ensure any work aligns with state and local requirements.

Official Resources

Septic Inspection, Permits & Local Oversight

Local oversight in Ostrander, OH

Ostrander sits in Delaware County, where the Delaware General Health District (DGHD) is the primary local authority for onsite wastewater systems. DGHD handles permits, plan reviews, inspections, and enforcement to ensure septic systems protect groundwater and wells. In some cases, village or city building departments may have additional rules or permit steps; check with Ostrander village hall if you're unsure which agency governs your property.

  • The state framework is set by the Ohio Department of Health (ODH) and Ohio Administrative Code, but field work and permit decisions for residential septic systems are typically administered at the county health district level.
  • Licensed professionals (designers and installers) are usually required to work with DGHD to obtain permits and schedule inspections.

Useful starting points:

When you need a permit

You generally need a permit from DGHD for:

  • Installing a new septic system with a drain field
  • Replacing an existing system
  • Making substantial repairs or alterations to an OWTS
  • Reconfiguring a system to accommodate changes in home size or usage
  • Sometimes relocating a tank or drain field, or changing setbacks, requires review

Note: If you're replacing a failed system on a property transfer, permits and documentation are typically reviewed as part of the sale process.

The permit process (step-by-step)

  1. Confirm which agency reviews your project (DGHD for Ostrander) and obtain the permit checklist.
  2. Hire a licensed designer/installer familiar with Ohio rules and DGHD requirements.
  3. Have the site evaluated and, if required, soil/perc tests completed per DGHD guidance.
  4. Prepare and submit a permit application with plans, lot dimensions, wastewater design, and any required fees.
  5. DGHD reviews the submission. They may request revisions to meet setbacks, drainage, and design specifics.
  6. Once approved, schedule the installation and inspections with DGHD and the licensed contractor.

Inspections during installation

Expect inspections at key milestones:

  • Pre-installation/site evaluation verification
  • Septic tank and baffle/piping placement
  • Drainage field trenching and installation
  • Backfill around components and final grading
  • Final system inspection and pressure test (or equivalent functional test)

If a step is missed or an issue is found, the inspector will note needed corrections before you can move forward.

After installation: operation permit & maintenance

  • A final dwelling or system operation permit is issued after successful inspection.
  • You'll typically receive maintenance guidance and a recommended pumping schedule (most tanks need pumping every 3–5 years, depending on usage and tank size).
  • Maintain a simple record: installation date, tank size, drain field layout, pump/metering equipment, and pumping receipts.

Records & disclosure

  • Keep all permits, plan revisions, and pumping records in a safe place.
  • When selling the home, be prepared to disclose the septic system's type, location, last inspection, and. pumping history per local requirements.

Helpful resources

Septic Maintenance for Homes in Ostrander

Ostrander-specific conditions and why maintenance matters

Ostrander sits in Delaware County, where soils can range from moderate to slow percolation and groundwater levels can shift with the seasons. That variability means your leach field may perform differently year to year, and heavy rainfall or spring thaw can push waste away from the tank more slowly. In Ostrander, relying on a "set it and forget it" approach often leads to backups or sluggish drainage. Regular attention helps prevent costly repairs and protects your home's water quality.

  • Soil and water table matters: clay or high water tables slow effluent dispersion.
  • Weather patterns: spring rains and thaw can saturate the drain field, increasing risk of surface wet spots.
  • Lot constraints: many Ostrander lots are smaller or have limited expansion options for fields, so keeping the existing system healthy is critical.

Routine maintenance checklist

  • Inspect yearly: check for odors near the house, wet spots on the drain field, and unusually lush vegetation over the field.
  • Pump every 3–5 years (more often with large families or frequent use of garbage disposals): a professional will remove solids that wastewater bacteria can't digest.
  • Use septic-safe products and limit chemical cleaners: harsh chemicals and solvents can disrupt beneficial bacteria and clog the system.
  • Protect the drain field: keep vehicles and heavy equipment off the field; avoid planting trees or shrubs with deep roots nearby.
  • Maintain records: log pumping dates, service notes, and any recommended repairs.

Pumping and inspection schedule (step-by-step)

  1. Find a licensed OSTS contractor who serves Ostrander and Delaware County.
  2. Schedule a full septic tank pump-out, including inspection of inlet and outlet baffles.
  3. Have the tank inspected for cracks, scum, and solids buildup; request an assessment of the distribution box if present.
  4. Have the drain field inspected for signs of saturation, effluent pooling, or soil changes.
  5. Review recommendations: any needed repairs, replacements, or a revised pumping interval.
  6. File the results in a home maintenance log and keep receipts with future resale records.

Daily-use practices to protect your Ostrander system

  • Limit use of garbage disposals; dispose of fats, oils, and grease in the trash.
  • Use septic-safe cleaners and minimize concentrated chemicals; avoid pouring paint thinner, solvents, or motor oils down drains.
  • Space out heavy water use: run laundry and dishwashing in smaller loads, and spread out across the week.
  • Fix leaks promptly; a dripping faucet wastes water and adds load to the tank.
  • Protect the drain field from landscaping and irrigation: avoid sprinklers directly over the field; consider drought-friendly planting.

Recognizing trouble in Ostrander (early signs to watch)

  • Slow flushing, gurgling toilets, or sewage odors inside or near the tank.
  • Standing water or damp soil above or near the drain field, especially after rainfall.
  • Bright green, lush patches or spongy, foul-smelling soil over the field.
  • Frequent backups into sinks or toilets despite no plumbing block.

Working with local resources and official guidance

  • Ohio EPA — On-site Sewage Treatment Systems (OSTS) information for homeowners and professionals:
  • U.S. Environmental Protection Agency — Septic system guidance and basics:
  • General guidance and best practices for septic systems: include a reference to keep up with local permit and code requirements as outlined by state and county authorities.

Practical notes for Ostrander homeowners

  • If you're buying in Ostrander or renovating, ask about the current status of the OSTS and any required inspections from the local health district or Ohio EPA.
  • Plan ahead for seasonal changes; consider scheduling a fall inspection to prep for winter use and spring rains.
  • Keep a simple home maintenance log and set reminders for pumping and inspections so nothing falls through the cracks.

Cost Expectations for Septic Services in Ostrander

Septic Tank Pumping

  • What this includes: removing the accumulated sludge and scum from the tank, cleaning the lids and access ports, inspecting inlet and outlet baffles, and checking the pump chamber if a grinder/pump is present. In Ostrander, crews may also confirm tank location and depth to ensure safe access in winter months.
  • Why Ostrander matters: clay soils and seasonal groundwater can influence pumping frequency and access challenges (winter access, frozen lids, limited working space). Contractors often recommend more proactive pumping schedules for homes with heavier uses or smaller tanks.
  • Typical cost in Ostrander: roughly $275–$550 per pumping visit. If you need additional services (lid replacement, tank locating, or multiple-tank pumping in one trip), expect $50–$150 more.

Septic System Inspections

  • What this includes: a standard in-house inspection of the tank and field, plumbing checks, and system performance assessment. For home transactions, you'll often see a more thorough evaluation that may include dye tests or camera inspections of lines.
  • Ostrander-specific notes: Delaware County health guidance may require or recommend inspections during real estate transfers; permits and final inspections are common steps in Ostrander transactions.
  • Typical cost in Ostrander: $150–$300 for a basic inspection; $350–$500 when additional elements are included (dye tests, camera inspection of mains, or a detailed written report).

Drain Field Evaluation and Repair

  • What this includes: soil and percolation assessment, evaluation of the leach field's condition, and recommendations for repair or replacement. Minor repairs may include line cleaning or short trenchwork; major work could involve trench replacements or soil amendments.
  • Ostrander context: soils around Ostrander can vary; local contractors may suggest aerobic treatment or mound options if the existing field is unsuitable due to soil depth or groundwater. Permit coordination with the local health district is common.
  • Typical cost in Ostrander: evaluation generally $200–$600; simple repairs $2,000–$6,000; more extensive field work or replacement often $6,000–$20,000 (mound or alternative systems can push higher).

New System Installation

  • What this includes: site evaluation, system design, permit fees, excavation, installing tank(s) and drain field, backfilling, and final inspections. If soils require a mound or ATU, that adds complexity and cost.
  • Ostrander specifics: permits are typically handled through the Delaware County health district or local county authority; site access in winter and topsoil conditions can affect schedule and price.
  • Typical cost in Ostrander: conventional systems usually in the $7,000–$15,000 range; mound or aerobic systems can run $15,000–$40,000+ depending on site conditions, material chosen, and lot setbacks.

System Repairs and Component Replacement

  • What this includes: pump replacement, control panels, float switches, valves and baffles, and minor piping repairs. In Ostrander, frozen or sunken components may require additional winterized or accessible-lid work.
  • Typical cost in Ostrander: minor repairs $200–$1,000; pump replacements $600–$1,500; control panel and valve work $500–$2,500; more extensive fixes could approach or exceed $6,000 depending on parts and labor.

Tank and Access Improvements

  • What this includes: adding risers for above-ground access, replacing lids, or extending lid height for easier maintenance in winter.
  • Ostrander notes: risers can reduce annual maintenance disruption and make inspections safer in cold months.
  • Typical cost in Ostrander: $100–$500 for risers and lids, plus labor.

Perc Tests and Soil Evaluations for New Installations

  • What this includes: soil probing, percolation testing, and soil profile assessment to determine feasibility and design for a new system.
  • Ostrander specifics: local soil variability may require more thorough testing; results guide whether a conventional system or an alternative (mound/ATU) is needed.
  • Typical cost in Ostrander: $500–$1,500.

Routine Maintenance Plans

  • What this includes: scheduled pumping, annual inspections, priority scheduling for emergencies, and documentation of system performance.
  • Ostrander considerations: some homeowners benefit from annual plan bundles to manage costs and ensure compliance with local requirements.
  • Typical cost in Ostrander: $150–$300 per year, depending on frequency of service and included perks.

Permit and Local Requirements

  • What this includes: permit applications, plan reviews, and inspection fees as part of installation, modification, or repair projects.
  • Ostrander context: expect coordination with Delaware County health authorities; permit fees vary by project size.
  • Typical cost in Ostrander: $150–$500 for typical permits and inspections.

Steps to plan and budget (short guide)

  1. Identify needed service: pumping, inspection, repair, or installation.
  2. Check tank size and access, and confirm any winter access limitations.
  3. Obtain 2–3 local quotes that include labor, materials, permit fees, and disposal.
  4. Confirm required permits and planned inspection timelines with the local health district.
  5. Schedule work with consideration for soil conditions and seasonal constraints.

Official resources

  • U.S. EPA: Septic Systems overview.
  • Delaware General Health District — Environmental Health: Septic Systems (general guidance and local requirements).