The Governing Framework

Nebraska regulates onsite wastewater under:

• Title 124 — Rules and Regulations for the Design, Operation, and Maintenance of Onsite Wastewater Treatment Systems. The substantive statewide rule.
• Nebraska Department of Environment and Energy (NDEE) — previously Nebraska Department of Environmental Quality. Currently rebranded as DWEE (Department of Water, Environment, and Energy) per recent reorganization. The agency retains authority over Title 124.
• Local health districts / county environmental health — implement field-level permits.

Setback Distances — Table 2.1

Title 124 establishes baseline setback requirements:

• 100 feet from any surface water or private drinking water well
• Additional setback distances per Title 124 Table 2.1 covering wells, property lines, buildings, water supply pipes, and other features

Consult Title 124 Table 2.1 or your local health district for the complete setback table.

Designer Flexibility — ≤10 BR / ≤1,000 gpd

Nebraska provides an unusually flexible designer-qualification rule:

This three-path flexibility keeps residential installations accessible without requiring the highest-cost designer (PE) for every straightforward installation. A certified installer can handle design for most single-family homes; an REHS serves where additional environmental-health review is useful; a PE is engaged for larger or non-standard systems.

Professional Requirement for Operations

Title 124 requires that only a certified professional, Professional Engineer, Registered Environmental Health Specialist, or person under their direct supervision may engage in:

• Inspection
• Pumping
• Siting and layout
• Construction, reconstruction, alteration, or modification
• Repair, closure, or changing

— of an onsite wastewater treatment system. This is stricter than many states and effectively blocks DIY repair or alteration work.

Permit Process

1. Contact your local health district or county environmental health office.
2. Soil and site evaluation. Per Title 124 protocols.
3. System design. By certified installer, REHS, or PE per the designer-flexibility rule.
4. Permit application. Submitted through local health district.
5. Permit issuance. Fees vary by district. Typical timelines 2–8 weeks.
6. Construction by qualified professional.
7. Inspection before cover. Local health district or qualified inspector.

Regional Considerations

• Omaha / Lincoln Metros: Largely on municipal sewer. Remaining septic on rural/suburban perimeter.
• Platte Valley / central Nebraska: Deep alluvium with excellent percolation and a shallow water table. Tank placement above water table is critical.
• Panhandle (Scotts Bluff, Cheyenne, Sioux): Sandy soils, deep water table, low rainfall. Standard systems work well. Cold winters require frost-line depth (48+ inches).
• Sandhills: Distinctive grassland ecosystem over deep sand. Extreme percolation rates may actually require special design to prevent effluent from flushing through without treatment. Reserve drainfield specifications important.
• Loess Hills (eastern Nebraska): Deep wind-blown loess with good structure and moderate percolation. Standard systems typical.
• Niobrara / cedar canyon country: Rocky terrain, shallow soil. Alternative systems sometimes required.

Material Approvals

NDEE/DWEE accepts polyethylene tanks meeting Title 124 construction standards. Verify at order:

• IAPMO PS 1 or NSF 46 listing
• Ribbed polyethylene construction
• Tanks > 3,000 gallons fabricated as single unit have specific Title 124 requirements — consult current rule
• Effluent filter compatibility
• Manhole dimensions and inspection pipe parameters per Title 124

Source Citations

• Nebraska Title 124 Rules and Regulations (historical PDF)
• Onsite Wastewater Treatment Systems Title 124 General Permits (PDF)
• DWEE On-Site Septic Systems Program Overview
• Private Onsite Wastewater Treatment Facility Holding Tank Permit (PDF)
• UNL Extension: Residential Onsite Wastewater Treatment Septic Tank Design

Frequently Asked Questions

Who regulates onsite wastewater in Nebraska?

Nebraska Department of Environment and Energy (NDEE) under Title 124 NAC (On-site Wastewater Treatment Systems Professionals). Local health departments administer field permits under NDEE oversight.

Are polyethylene tanks accepted in Nebraska?

Yes, when meeting IAPMO/NSF listings and NDEE construction requirements. Major OEM rotomolded polyethylene tanks from Norwesco, Snyder, and others are commonly approved. Your licensed installer will specify accepted models.

What about Ogallala Aquifer and Sandhills considerations?

Western Nebraska sits atop the Ogallala Aquifer. Sandhills region has unique sandy soil conditions that favor absorption but also allow rapid contaminant transport to groundwater. Design must consider groundwater vulnerability; some areas require enhanced treatment.

Is a licensed professional required?

Yes. Title 124 NAC establishes installer and pumper licensing. NDEE maintains certified professional rosters. Contractors performing onsite wastewater work must hold appropriate NDEE credentials.

What about freeze-depth considerations?

Nebraska's northern-plains climate brings frost depths of 4-5 feet. Tanks, lines, and risers need protection (burial depth, insulation, or both). Seasonal/recreational properties need careful low-flow freeze-protection engineering.

Agricultural Tank Regulations — Nebraska Title 198 Secondary Containment

Nebraska's Agricultural Chemical Secondary Containment Program is administered by the Nebraska Department of Environment and Energy (NDEE) under Title 198 (Rules and Regulations Pertaining to Agricultural Chemical Secondary Containment):

• Title 198 — Administered by NDEE for commercial and private secondary containment and loadout facilities for bulk liquid fertilizer and pesticide storage. Coordinates with the Nebraska Department of Agriculture (NDA) on pesticide registration and applicator licensing.
• Pesticide containment trigger: Required if the total storage capacity of bulk liquid pesticide containers (>55 gallons) at a storage facility exceeds 500 gallons.
• Fertilizer containment trigger: Between November 1 and March 15, liquid fertilizers stored in a container larger than 500 gallons in quantities exceeding 25 percent of the container's capacity trigger containment.
• NDA pesticide rules: Separate licensing and registration framework for dealers and applicators (Neb. Rev. Stat. sections 2-2622 through 2-2656, Nebraska Pesticide Act).
• Mixing/loading pads: Required for bulk handling under Title 198, with design and construction standards for impervious surfaces and operational containment.

Nebraska's corn belt from the Platte Valley west through the Panhandle, plus the center-pivot irrigation country and Sandhills cattle operations, supports a dense ag-retail infrastructure. Title 198's tripwire-style thresholds (500 gallons pesticide, 500 gallons fertilizer seasonal test) and the seasonal storage rule are distinctive. Operators should plan tank sizing and inventory cycles to land cleanly on one side or the other of the trigger, or design proactively to meet containment regardless.

Oil & Gas Produced Water — Nebraska Oil and Gas Conservation Commission

Nebraska's oil and gas activity is concentrated in the Denver-Julesburg Basin (southwest Panhandle counties — Kimball, Cheyenne, Banner) with smaller activity elsewhere. Regulation falls to:

• Neb. Rev. Stat. Chapter 57 — Oil and Gas.
• Title 267 — Nebraska Oil and Gas Conservation Commission rules. Covers well permitting, casing, cementing, tank batteries, pit construction, produced-water storage, and Class II UIC.
• Class II UIC — Primary disposal pathway for produced water. Nebraska has primacy for Class II under the Safe Drinking Water Act.

Polyethylene brine and frac tanks deployed in western Nebraska should verify chemistry against DJ Basin brines (typically 20,000–80,000 ppm TDS depending on formation and well age). For current Title 267 rule citations, fees, and permit timelines, consult the Oil and Gas Conservation Commission directly.

Septic System Sizing Deep Dive

Nebraska onsite wastewater falls under Title 124 (Nebraska Department of Environment and Energy — Rules and Regulations for the Design, Operation and Maintenance of Onsite Wastewater Treatment Systems). Typical capacity table applied on the ground:

Nebraska requires certified environmental service technicians and certified onsite wastewater treatment system professionals to design and install systems under Title 124. Sandhills and Platte Valley sandy soils generally favor conventional trench systems; Loess Hills (eastern Nebraska) silt loam often requires pressure distribution. Confirm current setbacks and Table values with NDEE or your county before finalizing a site plan.

Chemical Storage Secondary Containment & Spill Reporting

Federal SPCC (40 CFR 112) applies at 1,320 gallons aggregate aboveground oil. Nebraska layers on:

• Title 200 — NDEE Rules and Regulations for Underground Storage Tanks.
• Neb. Rev. Stat. Chapter 66 sections 66-1501 et seq. — Nebraska Petroleum Release Remedial Action Act.
• Title 126 — NDEE Integrated Solid Waste Management Rules.
• NDEE 24-hour Emergency Response at 1-402-471-4545.

Secondary containment for polyethylene chemical tanks should hold at least 110% of the largest tank capacity. Above 1,320 gallons aggregate oil, maintain a written SPCC plan. For current Nebraska-specific RQ thresholds and reporting timelines, consult NDEE directly.

Permit Pathways at a Glance

• Residential septic: NDEE or county delegated authority under Title 124.
• Ag chemical secondary containment: NDEE under Title 198 (above 500-gallon pesticide or 500-gallon fertilizer seasonal trigger).
• Pesticide applicator and dealer: NDA under Neb. Rev. Stat. 2-2622 et seq.
• Oil & gas produced water: Oil and Gas Conservation Commission under Title 267.
• Petroleum UST: NDEE under Title 200.
• SPCC > 1,320 gal oil aggregate: Federal SPCC plan; NDEE spill reporting.

More Nebraska FAQs

If I store 400 gallons of pesticide year-round, am I subject to Title 198?

Below the 500-gallon pesticide containment trigger, Title 198 doesn't require secondary containment. You're still subject to NDA applicator and dealer rules plus the federal Pesticide Container Containment Rule (40 CFR 165 Subpart E) for any repackaging.

My 1,000-gallon UAN tank is full from November through March. Does Title 198 apply?

Potentially yes. The fertilizer seasonal rule triggers when liquid fertilizer is stored November 1 through March 15 in a container larger than 500 gallons and exceeds 25% of container capacity. A 1,000-gallon tank over 250 gallons (25%) during that window triggers the rule. Build containment.

Are Sandhills ranches subject to any special ag-chemical rules?

The Sandhills overlie the Ogallala Aquifer, and Title 198 plus NDEE groundwater-protection rules apply as throughout the state. Operators with significant bulk storage in the Sandhills should coordinate with their local Natural Resources District (NRD) on well and site siting.

What does the Oil and Gas Conservation Commission require for new frac tanks in Kimball County?

Title 267 requirements for tank battery design, containment, and Class II disposal apply. Polyethylene specification should match DJ Basin brine chemistry. File required notifications with the Commission.

Is there a state-funded cleanup program?

The Petroleum Release Remedial Action Cash Fund under Neb. Rev. Stat. 66-1501 et seq. covers eligible petroleum UST releases. Non-petroleum chemical tanks are owner liability.

How do NRDs interact with state rules?

Nebraska's 23 Natural Resources Districts have jurisdiction over groundwater management, including well permitting and certain irrigation and nutrient-management rules. Bulk ag chemical sites typically coordinate with both the NRD and NDEE/NDA, especially in Groundwater Management Areas or phase-restricted zones.