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Stormwater Directory

Nebraska

Nebraska Department of Environment and Energy

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Quick Summary

For most Nebraska projects disturbing 1 acre or more, you need a state NPDES Construction General Permit and a SWPPP with a certified inspector on site. Rain inspections are triggered after as little as 0.25 inches — one of the lowest thresholds in the country.

State-DelegatedVerified 2026-03

Construction Permit

Permit Document ↗
Permit Name
NPDES General Permit for Stormwater Discharges from Construction Activities (NER100000)
Threshold
≥ 1 acre of land disturbance (or < 1 acre if part of a larger common plan of development or sale that will ultimately disturb ≥ 1 acre)
NOI Lead Time
A Notice of Intent (NOI) must be submitted to NDEE and permit coverage confirmed before construction begins. Nebraska requires a minimum 7-day waiting period after NOI submission before commencing land-disturbing activities, unless NDEE grants earlier authorization
Application Method
Online submission via NDEE's eDMR/ePermitting system (available at deq.ne.gov); paper NOI forms are also accepted and must be mailed to NDEE's Lincoln office
Fee
No fee for initial coverage under the Construction General Permit NER100000; Nebraska does not charge a construction stormwater permit application fee
Permit Expires
January 31, 2028
Apply for Permit ↗

SWPPP Requirements

Permit Document ↗
SWPPP Required
Yes
PE Cert Required
No
Template Available
Yes
A Stormwater Pollution Prevention Plan (SWPPP) is required and must be prepared before submitting the NOI. The SWPPP must be kept on-site and made available to NDEE inspectors upon request. Nebraska does not require a professional engineer to prepare or certify the SWPPP as a matter of state regulation, though local jurisdictions or project owners may impose additional requirements. NDEE provides a SWPPP template and construction stormwater guidance on its website. The SWPPP must identify all potential pollutant sources and describe BMPs for each phase of construction.

Inspection Requirements

Permit Document ↗
Frequency
At least every 7 days and within 24 hours after a rainfall event of ≥ 0.25 inches in a 24-hour period. This 7-day inspection interval is more frequent than many states and reflects Nebraska's compliance focus. Inspections may be reduced to every 14 days if the site has reached final stabilization in some areas.
Rain Trigger
Within 24 hours of a storm event producing ≥ 0.25 inches of rainfall in a 24-hour period (lower threshold than most states)
Inspector Qualification
No state-mandated inspector certification; inspections must be performed by qualified personnel with sufficient knowledge of stormwater pollution prevention principles, erosion and sediment control BMPs, and the site-specific SWPPP. NDEE does not operate a formal inspector certification program, but recommends industry certifications (CPESC, CESSWI) for personnel conducting inspections.
Accepted Certifications
Certified inspector REQUIRED; CESSWI is the primary accepted credential; CPESC, CISEC also accepted; NDEE enforces the requirement for a documented certified inspector

Discharge Standards

Permit Document ↗
Turbidity Limit
No numeric NTU effluent limit in the Construction General Permit NER100000
Discharges must not cause or contribute to violations of Nebraska's water quality standards (Title 117 — Nebraska Surface Water Quality Standards), which include narrative criteria prohibiting materials that create aesthetically objectionable conditions or interfere with designated uses. Visual monitoring of all discharge points is required at every inspection. Nebraska's plains terrain and significant agricultural context mean sediment-laden runoff is a primary concern, particularly in watersheds already impaired for turbidity or siltation.

Post-Construction

NDEE ↗
Required
Yes
Post-construction stormwater management requirements are primarily enforced through Phase II MS4 permits for regulated communities in Nebraska (including Lincoln, Omaha, and other regulated municipalities). The construction general permit requires final site stabilization before permit coverage can be terminated via a Notice of Termination (NOT). Long-term post-construction BMPs are addressed through local MS4 ordinances and, in some cases, through NDEE-approved long-term operation and maintenance agreements.

Impaired Waterbody / TMDL Requirements

Standard Provisions

Nebraska DEQ construction stormwater permit has standard provisions. No specific permit conditions are triggered by impaired water body status in the general permit; standard stormwater BMPs apply statewide.

Program Contact

Contact Page ↗
Phone
(402) 471-2186

State-Specific Notes

Nebraska's 7-day inspection interval is notably more frequent than the standard 14-day interval used by many states, reflecting a stricter compliance posture for construction sites. Nebraska also charges no permit fee, which, combined with its streamlined NOI process, makes it relatively low-burden administratively. NDEE was previously known as NDEQ (Nebraska Department of Environmental Quality) and was renamed when energy functions were merged in 2019 — older references may use the NDEQ abbreviation. Nebraska's vast agricultural landscape means many construction projects must coordinate with the Natural Resources Districts (NRDs), which have independent authority over erosion control and groundwater matters.

Disclaimer: This information is provided for general reference only and may not reflect the most current regulatory requirements. Always consult the NDEE website and applicable regulations before beginning any construction activity.