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 flexible approach allows residential installations to be affordable without needing a Professional Engineer (PE) for every simple job. Certified installers can design most single-family home systems, REHS can help when extra environmental review is needed, and PEs are used for larger or unusual systems.

Professional Requirement for Operations

Title 124 states that only certified professionals, Professional Engineers, Registered Environmental Health Specialists, or those they supervise can work on these systems.

• 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

The Nebraska Department of Environment and Energy (NDEE) manages the Agricultural Chemical Secondary Containment Program under Title 198, which covers rules for agricultural chemical 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 agricultural areas, including the Platte Valley and Panhandle, have a strong retail infrastructure. Title 198 sets thresholds like 500 gallons for pesticides and fertilizers. Operators should plan tank sizes and inventory to either stay below these limits or design to meet containment requirements.

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

Oil and gas activity in Nebraska is mainly in the Denver-Julesburg Basin in the southwest Panhandle counties like Kimball, Cheyenne, and Banner. Regulation is handled by:

• 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 in western Nebraska should check their chemistry against DJ Basin brines, which range from 20,000 to 80,000 ppm TDS. For the latest Title 267 rules, fees, and permits, contact the Oil and Gas Conservation Commission.

Septic System Sizing Deep Dive

Nebraska's onsite wastewater is regulated under Title 124 by the Nebraska Department of Environment and Energy. This includes rules for designing, operating, and maintaining onsite wastewater systems.

Nebraska requires certified environmental service technicians and certified onsite wastewater treatment system professionals to design and install systems under Title 124. Sandy soils in the Sandhills and Platte Valley usually work with trench systems, while silt loam in the Loess Hills needs pressure distribution. Check current setbacks and Table values with NDEE or your county before finalizing plans.

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.

Polyethylene chemical tanks need secondary containment that holds at least 110% of the largest tank's capacity. If you have more than 1,320 gallons of oil, you need a written SPCC plan. For Nebraska-specific RQ thresholds and reporting timelines, contact NDEE.

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.