Before the house pad, driveway, well, utilities, and financing lock the site. The septic field and its duplicate area need approved soil and protected space first.
For a Maury County home, first verify sewer status, map soil, and coordinate the house, well, driveway, utilities, active field, and duplicate area on a staked plan. Apply to TDEC before any dirt work or building pad. After permit approval, hire an installer, protect the soil during construction, obtain TDEC installation inspection, and keep the final approval with the property.
Get written utility and jurisdiction information for the parcel. A Spring Hill mailing address can involve Maury or Williamson County, and current sewer-capacity rules can affect connection timing. Do not infer service from nearby homes or a manhole.
Use a purchase contract and professional advice that preserve access for soil work, survey, TDEC review, financing, and an exit or price response if the planned bedroom count and layout do not qualify.
A Tennessee-approved soil consultant maps usable soil, depth, drainage, restrictive layers, slope, and site features when required. Alternative systems need an extra-high-intensity soil map before TDEC evaluation.
Stake everything that competes for space: the property lines, the house and basement footprint, the well and driveway, and the utilities. Then mark the active field, the duplicate field, drainage, and access. TDEC asks for these site facts because each can consume required space.
Submit landowner and site information, occupants, bedrooms, water use, basement plumbing, rough sketch, soil map if required, and engineered design for applicable large or alternative systems. Pay the current permit fee.
Do not move the house, add bedrooms, grade through a field, shift a well, or reroute a driveway after approval without checking whether a modification permit is required.
Give each permitted installer the issued permit, drawings, equipment schedule, inspection requirements, access constraints, and restoration limits. Compare tanks, field, mechanical, electrical, erosion, startup, warranty, and exclusions.
Fence or mark both field areas. Keep excavation spoil, concrete washout, and heavy equipment off the protected soil. The same goes for deliveries, utility trenches, material storage, runoff, and parked vehicles.
The applicant or installer notifies TDEC after installation. TDEC inspects for permit and rule compliance. Correct deficiencies before covering or relying on the system, then retain final approval, as-built information, startup readings, manuals, and warranties.
| Design decision | Septic consequence | Document to align |
|---|---|---|
| Bedroom count | Sets residential design flow, tank minimum, and field sizing | Floor plan, TDEC application, permit, appraisal, and marketing |
| House and basement location | Controls tank route, fall, pump need, setbacks, and field geometry | Staked foundation, basement fixtures, finished-space plan, and site elevations |
| Well or spring | Creates source-protection setbacks and can remove otherwise usable soil | Well plan, soil map, survey, and TDEC sketch |
| Driveway and parking | Traffic and impervious surface cannot consume or compact field areas | Civil or grading plan, delivery route, turnaround, and permanent parking |
| Utilities | Trenching can cross, cut, or make fields inaccessible | Electric, water, gas, telecom, geothermal, and stormwater routes |
| Pool, shop, barn, garage, or ADU | Future construction can require a modification and more design flow | Master plan, setbacks, bedroom or fixture intent, and future phase boundaries |
| Grading and drainage | Cut, fill, compaction, swales, and runoff can destroy approved soil behavior | Existing and proposed contours, erosion control, roof discharge, and finish grade |
| System type | Changes footprint, tanks, pumps, power, alarm, maintenance, and lifecycle cost | Issued permit, engineered plan, equipment schedule, and owner budget |
The Tennessee Geological Survey maps Maury County's limestone units, sinkholes, unstable materials, and flood-prone areas. At parcel scale, an approved consultant may find deep usable soil on one ridge and shallow rock or restrictive drainage a short distance away. The soil map, not county reputation, controls the buildable arrangement.
A sinkhole or closed depression can change setbacks and groundwater risk. A steep or concave slope can bring lateral water into the field. A creek, spring, well, property line, easement, or planned cut can remove usable area. Protect likely soil before a bulldozer strips or compacts the exact horizon needed for treatment.
If conventional soil does not fit, TDEC can evaluate LPP, mound, ATS with drip, or another permitted path after the required extra-high-intensity map. That path can add engineering, equipment, electricity, alarms, service, and lifetime cost. It is not a promise that every constrained tract can support a home.
| Application input | Project-team action |
|---|---|
| Landowner and site | Use consistent owner, parcel, address, lot size, directions, and contact information |
| Occupancy and bedrooms | Match the current architectural plan and identify later bedroom changes before submission |
| Water use | Identify residential flow and unusual retail, commercial, accessory, or high-use fixtures |
| Basement | State whether it is excavated and whether plumbing fixtures are planned |
| Staking | Mark house and lot so the reviewer can tie field conditions to the proposal |
| Rough property sketch | Show property lines, house, well, spring, drive, utilities, directions, and other site constraints |
| Soil map | Submit the approved consultant's map when required and the extra-high-intensity map for alternative evaluation |
| Engineered design | Include licensed design for applicable large conventional or alternative systems |
| Installer | Name the permitted installer if selected; otherwise preserve the issued scope for later bidding |
TDEC currently says a completed construction-permit review generally takes 10 days and must be completed within 45 days of submission. That clock is not the whole preconstruction schedule. Survey, staking, and soil-consultant availability come first, along with fieldwork and any engineering. Missing information, plan revisions, payment, and site access can stretch the schedule around the agency review.
Alternative design adds dependencies. TDEC needs the extra-high-intensity soil map before it can evaluate the property, then engineering and equipment details may follow. A builder should not promise a foundation date based only on the 10-day general review statement.
Submit a complete, stable plan and answer field-office questions quickly. If house, bedroom, well, driveway, or field geometry changes, expect modification review instead of treating the original permit as a blank check. The Columbia Environmental Field Office routes Maury County SSDS questions.
| Schedule block | What can delay it | How to protect the build |
|---|---|---|
| Survey and concept | Unknown boundaries, easements, sewer status, or future structures | Resolve title and utilities; draw all planned uses before soil work |
| Soil evaluation | Wet conditions, vegetation, access, consultant backlog, or mapping revision | Book early and keep equipment off the study area |
| TDEC review | Incomplete application, unstable house plan, missing stakes, fee, map, or design | Use a complete checklist and one responsible project contact |
| Installer procurement | Bids based on different scopes, long-lead tanks, panels, or sand | Bid the issued documents and confirm availability before mobilization |
| Construction | Rain, rock, access, utility conflict, soil damage, or unapproved change | Sequence trades, fence fields, and keep contingency in schedule and budget |
| Final inspection | Covered work, failed test, missing component, wrong elevation, or incomplete corrections | Schedule TDEC, keep work visible as directed, and close every correction before occupancy reliance |
| TDEC item | Current fee shown by TDEC | Budget note |
|---|---|---|
| New conventional or large-diameter gravelless permit | $400 up to 1,000 gallons per day | $100 for each additional 1,000 gpd |
| New conventional construction inspection | $100 | Separate from installer, excavation, testing, and correction work |
| New alternative SSDS permit | $500 up to 1,000 gallons per day | $150 for each additional 1,000 gpd |
| Alternative construction inspection | $200 | Separate from soil mapping, engineering, equipment, electrical, and service |
| Experimental SSDS permit | $500 | Do not treat an experimental path as ordinary residential pricing |
Fees were rechecked on TDEC's construction-permit page July 17, 2026. Verify the portal total before payment because state fees and project category can change.
| Closeout item | What the owner should receive |
|---|---|
| TDEC record | Issued construction permit, approved revisions, inspection result, final approval, and record-search reference |
| Accurate location | As-built tank, piping, field, duplicate area, well, panels, valves, and permanent measurements |
| Installation proof | Installer, dates, photographs before cover, tank and component models, elevations, and test results |
| Mechanical startup | Pump curve, float or timer settings, pressure, cycle count, alarm test, panel diagram, and electrical signoff |
| Advanced-system file | Treatment model, approved provider, active maintenance agreement, startup sample or report if required, manuals, and consumables |
| Ownership plan | Inspection, pumping, filter, power-outage, alarm, landscaping, water-use, and field-protection instructions |
| Commercial terms | Paid invoices, change orders, warranties, labor coverage, exclusions, part support, and service contacts |
Research and review. The Maury Septic editorial team checked this guide against current TDEC rules and service pages, plus Current TDEC construction-permit sequence, fees, review timing, soil and design requirements, Maury County geology, and Spring Hill sewer context. Private-market costs are identified as planning ranges. For a specific property, rely on the issued permit and a written contractor scope.
Tennessee Department of Environment and Conservation
Who needs a permit, application requirements, review timing, current state fees, and inspection duties.
Tennessee Department of Environment and Conservation
Conventional, repair, and alternative-system applications, plus soil-map requirements.
Tennessee Department of Environment and Conservation
What an approved consultant evaluates, current qualification rules, and the state consultant list.
Tennessee Department of Environment and Conservation
State mapping standards for soil depth, restrictive layers, drainage, absorption rates, slope, site features, and SSDS interpretations.
Tennessee Department of Environment and Conservation
Current state policy for digital permit sketches, attachments, reproducible field references, setbacks, and FileNet record quality.
Tennessee Department of Environment and Conservation
State licensing requirements and the current installer and pumper lookup.
Tennessee Department of Environment and Conservation
Environmental field-office routing for septic-system questions and applications.
Tennessee Secretary of State
Official current chapter text governing Tennessee subsurface sewage disposal systems.
Tennessee Geological Survey
State-published geologic, unstable-materials, flood-prone-area, mineral-resource, and sinkhole maps for Maury County.
City of Spring Hill
Current capacity-allocation framework adopted January 5, 2026.
TDEC says the septic permit should be obtained before dirt work or construction of any building, including the building pad. Grading can compact or remove approved soil and move drainage, elevations, the house, or access. Wait for the issued layout, then make every trade follow its protected areas and change-control process.
Tennessee decisions rely on soil and site evaluation, and a licensed soil consultant's map may be required. Complete septic due diligence before losing contract protection. The result must fit the planned bedrooms, house, well, drive, setbacks, active field, and duplicate area. A neighboring permit or five-acre lot does not approve your parcel.
The builder can coordinate options and bids, but the accepted soil information, site constraints, Tennessee rules, engineering where required, and TDEC permit control the system. Do not buy an aerobic unit, mound package, or pump based on a contractor concept before the complete treatment and dispersal design is approved.
Review the change before construction. TDEC lists bedroom changes and house or site-plan changes that affect active or duplicate septic areas as reasons an uninstalled permit may need modification. Basement fixtures, well, driveway, grading, utilities, pool, garage, shop, barn, or other construction can also change the accepted layout.
No. Sewer availability, city or utility rules, county location, the current capacity framework, zoning, lot status, soil, setbacks, and TDEC approval remain separate gates. Confirm the parcel's jurisdiction and written sewer position first. A moratorium or delayed connection does not create suitable soil or override a public-sewer requirement.
Share the soil map, TDEC permit, system design, house and bedroom plan, field access, grading controls, equipment schedule, and construction timeline. This form does not perform soil mapping, issue a permit, or approve site changes.
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Related: soil and site evaluation · septic permit guide · septic installation · ADUs and tiny homes · subdividing land · system types · Spring Hill sewer status
Regulatory claims are checked against primary sources. Site-specific approval and pricing still require TDEC and a written installer estimate.