Septic in La Fargeville, NY

Last updated: Mar 21, 2026

Here in La Fargeville, along the quiet rural lanes near the Grasse River, most homes aren't tied to a city sewer. Instead, they rely on on-site septic systems tucked in the yard. That setup isn't a sign of old-fashioned trouble—it's a practical fit for how families live, work, and enjoy summers here. As a local septic contractor who's helped many neighbors keep their systems healthy, I'm glad you're here. This overview is designed to give you trustworthy context, friendly guidance, and clear steps you can take to protect your investment and your water quality.

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

Yes. Septic systems are the norm across La Fargeville and much of Jefferson County. If your property isn't on a municipal sewer line, you're almost certainly on a septic. If you're shopping for a home, presume you'll have a septic unless the listing confirms a sewer connection or a community system. Practical checks help you avoid surprises:

  • Ask for the system's age, the last pump date, and the tank size.
  • Verify whether the home has a certified septic design and a record of maintenance or repairs.
  • Locate the tank and drain field and ask if there have been any drainage or odor issues.
  • Get details on the type (conventional tank, aerobic unit, etc.) and the current condition.
  • Plan a professional inspection or pumping history review before closing.

Why homes typically use septic systems in La Fargeville

  • Rural layout and historical development mean many properties sit far from town sewer mains.
  • Limited public sewer access in the area makes on-site treatment the practical and affordable choice.
  • Lot sizes and property lines often favor individual systems over extended sewer connections.
  • Soil and groundwater considerations require properly designed leach fields to protect wells and streams.
  • Flexibility for seasonal, lakeside, or remote homes where extending infrastructure isn't economical.

High-level explanation (why septic exists here)

A septic system is a compact wastewater treatment setup serving your house on site. Wastewater from toilets, sinks, and laundry flows into a buried tank, where solids settle and scum forms. The clarified liquid then moves to a drain field, where soil and microbes treat it before it re-enters the ground. In La Fargeville, a well-designed system protects your family, your well water, and the surrounding environment. Regular maintenance and proper use are key to long life—pumping, inspections, and mindful water use go a long way.

If you're here, you're taking a smart step. The rest of the page will break down practical maintenance advice, common issues, and local service options to keep your system running smoothly.

Where Septic Systems Are Common in La Fargeville

Map of septic coverage in La Fargeville, NY

The rural layout that makes septic common

La Fargeville is a largely rural area where centralized sewer service isn't available to every street and property. Homes are commonly spread out on larger lots, and many were built before sewer districts expanded. That pattern makes onsite septic systems the standard solution for wastewater treatment for most residences and small farms.

Where you'll typically find septic in La Fargeville

  • Rural single-family homes outside sewer service areas.
  • Older houses built before municipal or town sewer lines reached the neighborhood.
  • Farm properties with separate dwellings or outbuildings that require their own septic arrangements.
  • Subdivisions and rural developments that predate sewer expansion or lie beyond the main sewer mains.

Soil and site conditions that influence septic

  • Soil type matters: well-drained soils (like sandy loam) support efficient septic drainage, while heavy clays slow infiltration and may require larger or alternative designs.
  • Depth to groundwater and bedrock: high water tables or shallow bedrock constrain drain-field size and placement.
  • Slope and drainage patterns: level to gently sloping lots are easier to site a system on; steep or poorly drained areas require careful planning.
  • Proximity to water features: setbacks from streams, lakes, or wells are enforced to protect groundwater and surface water quality. Local health rules may modify these guidelines.

Maintenance and planning for La Fargeville homes

  1. Get a septic evaluation before buying or if you notice signs of drainage issues.
  2. Pump the tank at the manufacturer-recommended interval, typically every 3–5 years for typical family use; adjust for larger households or heavy use.
  3. Conserve water to reduce load on the system: use high-efficiency fixtures, spread laundry across days, and fix leaks promptly.
  4. Protect the drain field: keep vehicles off the area, avoid planting aggressive trees or shrubs with invasive roots nearby, and don't compact the soil with heavy equipment.
  5. Plan for renovations or additions: consult the local health department early to ensure the system can handle extra wastewater and to address potential permitting requirements.

Official resources

For state guidance and formal requirements, see:

  • NYS Department of Health: Onsite Wastewater Treatment Systems —
  • New York DEC: Onsite Wastewater Management —

Septic vs Sewer: What Homeowners in La Fargeville Should Know

How septic systems differ from sewer

  • On-site vs centralized: A septic system handles wastewater on your property (tank + drain field). A sewer system sends all waste to a municipal treatment plant.
  • Ownership and responsibility: With a septic, you're responsible for installation, pumping, and maintenance. With sewer service, the municipality owns and operates the main system; you typically pay a monthly or quarterly sewer bill.
  • Upfront vs ongoing costs: Septic systems involve a larger upfront investment and periodic pumping, while sewer service spreads costs through ongoing utility charges. Both come with maintenance needs, but the timing and players differ.

Is sewer service available in La Fargeville?

  • Availability varies by neighborhood. Some La Fargeville homes connect to a municipal sewer, while others rely on private septic systems.
  • To confirm what applies to your address:
    1. Contact the local sewer authority or the Village of La Fargeville/Jefferson County offices to verify service availability and hookup options.
    2. Ask about hookup costs, required permits, and any impact fees or assessments.
    3. Check your property records for any existing sewer taps or easements.
  • If sewer isn't available, you'll likely keep a septic system and plan for ongoing maintenance.

Signs you should plan for septic maintenance

  • Slow drains, gurgling sounds, or backups in sinks, toilets, or showers.
  • Standing water or swampy areas in the drain field zone, especially after rains.
  • Unpleasant odors in the home or around the leach field.
  • Frequent pumping visits or unexpected repairs, especially if the system is older (typical septic lifespans vary by installation and soil conditions).
  • High water usage or use of aggressive chemicals that can disrupt beneficial bacteria in a septic system.

Maintenance and cost considerations

  • Septic system maintenance:
    • Have the septic tank pumped by a licensed professional every 3–5 years, or as recommended for your tank size and use.
    • Protect the drain field: limit heavy equipment on the area, plant wisely, and avoid parking over the field.
    • Be mindful of what goes down drains: avoid flushing non-biodegradables, grease, solvents, and harsh chemicals.
    • Use septic-safe products and consider a few gallons of water-efficient habits to reduce load.
  • Sewer service maintenance:
    • Expect a regular utility bill (often monthly or quarterly) that covers wastewater treatment. Costs vary by municipality and usage.
    • Leaks or blockages in the municipal system can affect service and may trigger rate adjustments or improvements in your area.
    • When major sewer projects occur, homeowners could see assessments or connection work requirements.

Quick decision steps for La Fargeville homeowners

  1. Verify sewer availability for your property with local authorities.
  2. If sewer is available, obtain a clear quote for hookup and any associated fees. If not, confirm septic options and any local requirements for new installations or upgrades.
  3. If you already have a septic, schedule a professional tank assessment and a pumping interval plan tailored to your household size and soil.
  4. Weigh long-term costs: predictable sewer bills vs. maintenance cycles, pumping, and tank replacements for septic systems.

Official resources

  • EPA: Septic Systems—basics, maintenance, and troubleshooting.

Typical Septic System Types in La Fargeville

Conventional gravity septic systems

  • How they work: Wastewater flows by gravity from the house into a septic tank, where solids settle and fats rise. Liquid effluent then drains by gravity into a network of perforated pipes (the drainfield) buried in sand and soil.
  • Typical components: septic tank, distribution box, perforated pipes in shallow trenches, and a soil absorption bed.
  • Site suitability: Best for soils with good drainage, adequate depth to groundwater, and plenty of space for the drainfield.
  • Pros and cons: Simple, cost-effective, and reliable when kept on a regular pumping and inspection schedule. Performance declines if the drainfield becomes clogged or the soil is too permeable or too wet.

Chamber or bed systems

  • How they differ: Instead of traditional gravel trenches, these use narrow plastic chambers or beds that provide wider absorption space.
  • Benefits: Often easier to install on smaller or sloped lots and can reduce soil compaction during installation.
  • Considerations: Still rely on a properly sized septic tank and a functioning drainfield; design must match soil conditions and lot geometry.
  • Pros and cons: Quicker installation in some sites; can be more forgiving of trench width, but still require suitable soil and distance from wells and foundations.

Mound systems (raised sand mounds)

  • When they're used: In areas with shallow soil, restrictive bedrock, high groundwater, or poor natural infiltration.
  • How they're built: A drainage system sits on a sand base, often layered with gravel and special sand, raised above the natural grade with fill.
  • Pros: Allows effective treatment where conventional drains are impractical.
  • Cons: Higher cost, more complex maintenance, and larger footprint requirements.
  • Suitability: Requires careful site assessment and professional design to meet local codes.

Aerobic treatment units (ATUs) and other advanced systems

  • What they are: Mechanically aerated treatment units that provide higher levels of wastewater treatment before disposal.
  • Disposal options: Treated effluent can go to a drainfield or, in some cases, to a surface infiltration system.
  • Pros: More resilient in marginal soils, higher effluent quality, and better performance in challenging sites.
  • Cons: Higher upfront and ongoing maintenance costs, electricity use, and routine service by a licensed technician.
  • Considerations: Regular servicing is essential to maintain performance and avoid odors or backups.

Holding tanks and other temporary/alternative approaches

  • When used: In sites with immediate limitations or for temporary setups where a full drainfield isn't feasible.
  • Pros: Provides a stopgap solution while planning a proper system upgrade.
  • Cons: Not a long-term fix; requires frequent pumping and can pose odor or environmental concerns if neglected.
  • Local note: Most La Fargeville properties rely on traditional drainfields or approved alternative systems; verify with the Jefferson County or local health authority before choosing this option.

Other disposal or specialty systems (where appropriate)

  • Sand filters and drip dispersal: Used in limited circumstances to treat effluent before final disposal.
  • Groundwater and soil conditions: In colder climates like La Fargeville, freeze-thaw cycles and seasonal soil moisture can influence system choices and maintenance needs.
  • Local codes: Always ensure any system type complies with state and local requirements and is installed by a licensed professional.

Maintenance and local considerations

  • Know your system type: Identify the exact configuration and where components sit on your property.
  • Regular pumping: Most systems require pumping every 3–5 years, but some ATUs or holding tanks may need more frequent service.
  • Protect the drainfield: Avoid parking, heavy equipment, and deep-rooted plants over the absorption area.
  • Water use matters: Space out loads, run full loads, fix leaks, and consider water-efficient fixtures to reduce load on the system.
  • Chemical and material safety: Don't flush harsh chemicals, solvents, or nonbiodegradable wipes; use septic-safe products.
  • When to call a pro: Odors, slow drainage, sewage backups, or wet spots in the drainfield are signals to contact a licensed septic contractor or the local health department.
  • Learn more: For official guidance on septic systems, visit the U.S. EPA's Septic Systems page — https://www.epa.gov/septic

Common Septic Issues in La Fargeville

Local conditions in La Fargeville that affect septic systems

  • Cold winters, freeze-thaw cycles, and spring thaws can stress tanks and pipes, leading to cracks, frost-related blockages, and system backups.
  • Variable soils near the St. Lawrence region mean some lots have shallow bedrock or dense clay, which can limit absorption and raise the risk of drainfield failure.
  • Seasonal occupancy is common in this lakes-and-rivers area. Short-term use with rapid surges in water and waste can overwhelm undersized or aging systems.
  • Groundwater and well proximity require extra care. In areas relying on private wells, septic failures can more quickly impact drinking water quality if not maintained.

Aging systems and pumping frequency

  • Most residential septic tanks need pumping every 3–5 years, but age, usage patterns, and tank size change frequency needs. In La Fargeville, older installations (20+ years) are common, and solids buildup accelerates with high-occupancy periods.
  • Signs of an aging system:
    • Slow drainage, gurgling sounds in drains, or toilets flushing slowly
    • Frequent backups or sewage odors around the house or drainfield
    • Wet, lush spots or sewage surfacing over the drainfield during rain or snowmelt
  • What to do:
    • Schedule a licensed septic professional for an evaluation and pumping if the last service was several years ago.
    • Keep a service log and plan pump-outs ahead of heavy-use seasons.

Drainfield saturation and high water table

  • La Fargeville's spring melt and heavy rains can saturate soils, especially where the drainfield is shallow or over poorly draining soils. When the drainfield can't disperse effluent, backups and odors follow.
  • Symptoms include surface effluent, soggy drainfield areas, or foul smells near the system.
  • What to do:
    • Limit water usage during wet periods; spread out laundry and avoid running full loads in multiple fixtures at once.
    • Have a pro assess soil permeability and consider drainfield upgrades if the site can't support current loads.

Soil and bedrock constraints

  • Some parcels sit on soils with slow percolation or nearby bedrock, which reduces the effective area available for effluent absorption.
  • Consequences: reduced treatment capacity, more frequent backups, and the need for alternative drainage designs (e.g., mound systems or effluent filtration).
  • What to do:
    • Obtain a Percolation Test/Soil Evaluation from a licensed contractor or the local health department to confirm drainage capacity.
    • Plan improvements with a licensed professional if soils are marginal.

Tree roots and landscaping interference

  • Tree roots growing toward tanks and buried lines can crack pipes, clog inlets/outlets, and shorten system life.
  • Yard development, driveways, or heavy equipment over the drainfield area increases failure risk.
  • What to do:
    • Keep vehicles and heavy equipment off the drainfield.
    • Plant shallow-rooted vegetation only above or near the system and consider root barriers where trees/shrubs are nearby.

Seasonal occupancy and water usage spikes

  • Short, intense usage periods (vacation homes, summer rentals) push systems beyond their design capacity.
  • What to do:
    • Use high-efficiency fixtures and limit garbage disposal use during peak times.
    • Have a local pro inspect the system before and after high-use periods and adjust pumping schedules accordingly.

Winter conditions: freezing and frost heave

  • Freezing can slow bacterial digestion and freeze components if venting or covers are inadequate; frost heave can misalign components.
  • What to do:
    • Ensure proper venting, access lids, and insulation for exposed tanks or lines.
    • Clear snow away from access points to prevent ice buildup.

Surface water management and runoff

  • Downspouts and sump pumps directed toward the drainfield or shallow soils increase saturation and reduce treatment efficiency.
  • What to do:
    • Direct runoff away from the drainfield with grading and by diverting sump pumps to appropriate discharge points.

Well contamination risk

  • In areas with private wells, septic failures can lead to increased nitrate or microbial contamination risk if separation distances are compromised.
  • What to do:
    • Have your well water tested regularly and maintain proper setback distances from the septic system.

Resources for official guidance and local responsibilities:

  • NYS Department of Health – Onsite Wastewater Treatment Systems:
  • U.S. Environmental Protection Agency – Septic Systems: https://www.epa.gov/septic

Septic Inspection, Permits & Local Oversight

Permits & Plan Review

  • In New York, onsite wastewater systems (OWTS) require permits and plan review by the local health department before installation, repair, or substantial modification. For La Fargeville residents, the Jefferson County Health Department generally handles OWTS permits and inspections, with the NYS Department of Health setting minimum state standards. Your specific town or village may add requirements, so always confirm with your local office.
  • What to do:
    • Hire a licensed designer or engineer to prepare an OWTS plan for your property.
    • Have soil evaluations and percolation tests performed as part of the site assessment.
    • Submit the plan and permit application to the local health department with the required forms and fees.
    • Obtain all needed approvals before any digging or installation begins.
  • Official resources:

Inspection Stages During Installation

  • Installations must be performed by licensed septic installers and designed by a licensed professional. Expect inspections at key milestones to ensure the system is placed and functioning correctly.
  • Typical inspection sequence:
    1. Plan review approval and permit issuance.
    2. Pre-construction site evaluation and final system design confirmation.
    3. Inspections during installation (tank placement, piping, trenches, backfill, and cover) to verify components meet code.
    4. Final inspection and issuance of a Certificate of Compliance or as-built documentation.
  • Quick tips:
    • Schedule inspections in advance and ensure access for inspectors.
    • Use compliant components (tanks, lids, risers, alarms) and proper backfill material.
    • Keep approved plans and permit paperwork on site for reference.

Real Estate Transfers & Timelines

  • Real estate transactions often trigger or benefit from an OWTS evaluation. Check with your local health department or town to know if a transfer inspection or Certificate of Compliance is required.
  • Steps you'll typically follow:
    1. If buying or selling, arrange an OWTS inspection with a licensed inspector.
    2. Request any transfer-related documentation (e.g., a certificate of compliance) from the local health department if required.
    3. If deficiencies are found, complete recommended repairs or upgrades before closing; some jurisdictions impose deadlines or upgrade requirements.
  • Note: Even when not mandated, obtaining a current evaluation provides peace of mind and can prevent closing delays.

Operation, Maintenance & Local Oversight

  • O&M is essential to protect your system and home value. Local oversight agencies may require documentation of maintenance during transfers or upon request.
  • Maintenance guidelines:
    • Pump a standard 1,000-gallon tank every 2–3 years for typical family use; more frequent pumping may be needed with high wastewater load or additional features (garbage disposal, multiple bedrooms, etc.).
    • Inspect and service effluent filters (if installed) and ensure pump tanks, alarms, and dosing chambers are functioning.
    • Conserve water to reduce stress on the system and extend life.
    • Maintain records of all pump-outs, servicing, and inspections for easy reference during real estate transactions or audits.
  • Oversight: Your county health department can advise on O&M best practices and may request maintenance records for transfers or routine reviews.

Contacts & Resources

Septic Maintenance for Homes in La Fargeville

Local conditions in La Fargeville that affect septic systems

  • Cold winters and spring thaws create freeze-thaw cycles that can influence how quickly a septic system drains and recovers after use.
  • The area has varied soils and, in some lots, a higher water table in spring. That combination can slow effluent absorption or lead to surface damp spots if the drainfield is not properly sized.
  • Many households rely on private wells, so protecting groundwater quality is a priority. Setbacks and soil conditions matter, and local codes may specify minimum distances between the septic system and wells or property lines.

Routine maintenance you can rely on

  • Pumping frequency: Most homes require a pump every 3–5 years, but usage (garbage disposals, large families, or frequent laundry) can shorten that window. If you have a smaller tank, more frequent pumping may be needed.
  • Annual inspections: Have a licensed septic contractor inspect tank integrity, baffles, and any installed effluent filters. Cracks, root intrusion, or deteriorated components should be addressed promptly.
  • Record-keeping: Maintain a simple file of pumping dates, contractor notes, tank size, and a drawing of the system layout. This helps planning and resale.

Seasonal care tailored for La Fargeville

  • Spring thaw: Inspect for surface odors or soggy areas in the drainfield zone; avoid driving heavy equipment or landscaping activities over the drainfield during wet periods.
  • Summer: High water use from irrigation or frequent laundry can stress the system. Spread out loads when possible to keep the system from being overwhelmed at once.
  • Winter: Keep access lids clear of snow and ice; ensure heat sources or ventilation around the tank aren't blocked. If you use rock salt or other deicers near the system, minimize exposure—their effects on soil and bacteria can be negative over time.

Signs of trouble and what to do

  • Common indicators: slow drains, gurgling noises in the plumbing, persistent sewer odors, damp patches above or near the drainfield, or a retreating wastewater treatment performance after heavy use.
  • Action: If you notice symptoms, contact a licensed septic contractor or your local environmental health office for evaluation. Ignoring early signs can lead to costly, long-term damage.

What to flush and what to avoid (local tips)

  • Flush: Only toilet paper and human waste.
  • Avoid: Wipes (even those labeled flushable), fats/oils/grease, feminine products, diapers, solvents, paints, and harsh cleaners. These items can clog or disrupt bacterial activity in the tank and drainfield.

Step-by-step maintenance workflow

  1. Locate the septic tank and confirm its size and last pumping date.
  2. Schedule pumping and a professional inspection with a Jefferson County-licensed contractor.
  3. Have the tank pumped; have baffles and any filters inspected or replaced as needed.
  4. After pumping, limit water use for 24–48 hours to give the drainfield a chance to recover.
  5. Update your maintenance calendar and keep all records for future service.

When to consider advanced options in La Fargeville

  • If your lot has shallow soils, rocky subsoil, or a consistently high water table, a professional designer may recommend alternative systems (such as a mound or advanced treatment unit) designed for your site. A local septic professional can evaluate soil conditions and advise on feasible options.

Official resources

  • NYS Department of Health – Onsite Wastewater Treatment Systems:
  • NYS Department of Health – Private wells guidance:
  • EPA – Septic systems:

Cost Expectations for Septic Services in La Fargeville

Septic Pumping and Sludge Removal

  • What it includes: removing settled sludge and scum from the tank, emptying the chamber(s), inspecting baffles and inlet/outlet lines, checking the pump chamber if you have a pumping system, and providing basic disposal guidance. Many La Fargeville homes benefit from routine checks before winter to prevent backups.
  • Local considerations: cold winters and soil conditions can influence when and how often pumping is advised; in older homes with smaller tanks, more frequent pumping may be needed. Tight access spaces or long driveways can affect service time and price.
  • Typical cost in La Fargeville: about $250–$450 for standard 1,000–1,500 gallon tanks; larger tanks or extra disposal services can push toward $500–$700.
  • Steps to prepare for service (ordered):
    1. Locate the tank and clear access; 2) Ensure gate access and pets are secured; 3) Have recent pumping records ready if available.
  • Official resources: NYS Department of Health on-site wastewater systems: EPA septic system overview:

Septic System Inspections and Real Estate Certifications

  • What it includes: visual inspection of tanks, lids, and access risers; record review of prior service; check for signs of backups or leaks; and may include a pump test or camera inspection if requested.
  • Local considerations: buyers in La Fargeville often request a formal certificate; some lenders require it. Access in older homes may be more limited and add to labor time.
  • Typical cost in La Fargeville: roughly $100–$350 depending on scope (basic vs. thorough inspection with camera check).
  • Steps to prepare for service:
    1. Share any previous inspection reports; 2) Ensure access to tank lids and pumping ports; 3) Schedule a time that aligns with lender deadlines if needed.
  • Official resources: NYS DOH Onsite Wastewater Systems overview: https://www.health.ny.gov/environmental/wastewater/onsite/

Drain Field Repair and Replacement

  • What it includes: diagnosing failed trenches or absorption beds, resolving soil compaction or root intrusion, adding clean fill or replacing damaged sections, and re-testing function after work.
  • Local considerations: clay-heavy soils or high groundwater in parts of Jefferson County can complicate repairs and increase cost; partial repairs are sometimes possible, but full replacement may be required for long-term reliability.
  • Typical cost in La Fargeville: minor repairs may run $2,000–$8,000; full drain field replacement commonly $8,000–$20,000 or more, depending on size and chosen technology.
  • Steps to prepare for service:
    1. Obtain prior system diagrams if available; 2) Expect soil tests and possible well-siting to be part of planning; 3) Budget for potential follow-up maintenance.
  • Official resources: EPA septic systems overview: https://www.epa.gov/septic

Maintenance Contracts and Preventive Care

  • What it includes: scheduled pumping reminders, periodic inspections of pumps and alarms, inspection of effluent filters if present, and maintenance tips to extend life between major repairs.
  • Local considerations: some La Fargeville pros offer bundled annual plans that save money over ad-hoc service; contracts can be especially helpful in winter months.
  • Typical cost in La Fargeville: $100–$300 per year depending on visit frequency and components covered.
  • Steps to prepare for service:
    1. Decide preferred visit cadence; 2) Confirm what is included (pumping, inspection, alarms, filters); 3) Ensure access arrangements for the technician.
  • Official resources: NYS DOH Onsite Wastewater Systems: https://www.health.ny.gov/environmental/wastewater/onsite/

Dye Tests and Performance Checks

  • What it includes: introducing non-toxic dye to observe flow through the system, verifying effluent movement, and checking for leaks or surface expressions; often used when buying or troubleshooting.
  • Local considerations: dye tests are more informative when paired with pumping and inspection data; winter testing may be limited by ground conditions.
  • Typical cost in La Fargeville: $50–$150.
  • Steps to prepare for service:
    1. Schedule around dry ground conditions when possible; 2) Remove pets and livestock from the area for safety; 3) Review prior service records for context.
  • Official resources: EPA septic systems overview: https://www.epa.gov/septic

Perc Tests and Site Evaluation for New Installations

  • What it includes: soil percolation testing, hydraulic load evaluation, and final field design recommendations; used to determine feasible system type and size.
  • Local considerations: local soil profiles and frost depth influence test outcomes and system layout; timing can be seasonal in La Fargeville due to weather.
  • Typical cost in La Fargeville: $500–$1,500 depending on site size and complexity.
  • Steps to prepare for service:
    1. Prepare access and clear any obstructions; 2) Provide site plans or property surveys; 3) Plan for lead time to coordinate with permitting.
  • Official resources: NYS DOH Onsite Wastewater Systems: https://www.health.ny.gov/environmental/wastewater/onsite/