Kentucky SWPPP Requirements 2026: KYR100000 Permit, eNOI Filing and Inspections

If you are disturbing one acre or more of land in Kentucky, you need a Stormwater Pollution Prevention Plan (SWPPP) and coverage under construction general permit KYR100000, which took effect January 3, 2025 and expires December 31, 2029. File the electronic Notice of Intent at least seven days before you break ground, and wait for the Division of Water to issue written notification of coverage before you disturb any soil.

Pro SWPPP has prepared these plans for contractors nationwide for 20+ years.

This guide covers who needs coverage, how to file the eNOI, what the inspection schedule actually requires, and what the penalties are for getting it wrong. Not sure whether your project triggers the permit? Take the 60-second SWPPP quiz.

Kentucky takes stormwater compliance seriously. The Kentucky Division of Water enforces the KPDES program, which mirrors federal EPA standards but adds stricter protections for sensitive waters. Whether you’re a contractor, developer, or industrial operator, understanding these rules will save you time, money, and headaches. Let’s get started.

SWPPP Requirements in Kentucky: What You Need to Know

A SWPPP is your blueprint for keeping mud, sediment, and pollutants out of Kentucky’s streams, rivers, and lakes. It’s a legal document required under the Kentucky Pollutant Discharge Elimination System (KPDES). If you disturb one acre or more of land—or less than one acre if you’re part of a larger project—you must have a SWPPP in place before you start digging.

Your SWPPP must describe how you’ll prevent erosion, control sediment, and manage stormwater runoff. It includes site maps, lists of Best Management Practices (BMPs), inspection schedules, and responsible party contact information. Think of it as your playbook for staying compliant and protecting Kentucky’s water quality.

Pro SWPPP makes this process simple. Our CPESC-certified experts prepare site-specific SWPPPs that meet all Kentucky Division of Water requirements, delivered in 72 hours or less. You focus on building. We handle the paperwork.

Kentucky Stormwater Regulatory Framework

The Kentucky Division of Water (KDOW), part of the Kentucky Energy and Environment Cabinet, runs the KPDES program. KPDES is Kentucky’s version of the federal National Pollutant Discharge Elimination System (NPDES). The EPA delegated this authority to Kentucky, so the state writes and enforces its own stormwater permits.

KDOW oversees two main stormwater general permits: construction permit KYR100000 (January 3, 2025 to December 31, 2029) and Multi-Sector permit KYR000000 for industrial activity (August 1, 2023 to July 31, 2028). Both require operators to develop a SWPPP, implement BMPs, conduct regular inspections, and file a Notice of Intent before work begins. The governing regulations are 401 KAR 5:055 (scope and applicability of the KPDES program), 401 KAR 5:060 (application requirements) and 401 KAR 5:065 (permit conditions), with surface water standards at 401 KAR 10:031 and permit fees at 401 KAR 5:310. Local Municipal Separate Storm Sewer Systems (MS4s) also play a role, adding extra requirements in certain cities and counties.

How Kentucky KPDES Compares to Federal NPDES

Kentucky’s rules follow the federal baseline but include stricter protections for sensitive waters. For example, the KYR10 Construction General Permit prohibits coverage for sites that discharge to waters with sediment TMDLs (Total Maximum Daily Loads), cold water habitats, or outstanding resource waters. The federal Construction General Permit allows coverage under certain conditions. This means you may need an individual permit or alternative permit if your site is near these protected waters.

Kentucky also requires ongoing updates to your SWPPP as site conditions change. This keeps your plan current and effective throughout the life of your project. KDOW reviews SWPPPs during inspections and audits to ensure compliance with state water quality standards.

State and Local Enforcement

KDOW conducts statewide enforcement, but local governments also have a say. Cities and counties with MS4 permits (like Louisville, Lexington, and Northern Kentucky communities) require their own reviews, inspections, and plan approvals. Some local jurisdictions mandate engineer-prepared SWPPPs and site visits before you can start work. This dual layer of oversight means you need to check both state and local requirements before you break ground.

Construction General Permit (CGP) in Kentucky

The KYR10 Construction General Permit covers stormwater discharges from construction sites that disturb one acre or more. It also applies to smaller sites if they’re part of a larger common plan of development or sale. This includes subdivisions, commercial parks, and phased projects where the total disturbance equals or exceeds one acre.

To get coverage under KYR10, you must complete three steps:

• Develop a complete, site-specific SWPPP before submitting your NOI
• File the eNOI-SWCA electronically through the KY DEP eForms portal at least seven days before you break ground
• Maintain your SWPPP on-site and update it as conditions change

Pro SWPPP handles all three steps for you. We prepare your SWPPP, guide you through the NOI filing, and provide ongoing support throughout your project.

Who Needs a KYR10 Permit?

You need a KYR10 permit if you’re the operator of a construction site disturbing one acre or more. “Operator” means you have operational control over construction plans, specifications, or day-to-day operations. This includes general contractors, developers, and owners who manage construction activities.

If multiple operators are involved (for example, a developer and a general contractor), each operator must file a separate NOI or share a single SWPPP with clearly defined responsibilities. The permit allows co-permittees, but you must document who is responsible for each BMP and inspection task.

Sites That Cannot Use KYR10

The KYR10 permit excludes certain high-risk sites. You cannot use the general permit if your site discharges to:

• Waters impaired for sediment with an approved TMDL
• Cold water habitats designated by the state
• Outstanding resource waters with special protections

If your site falls into one of these categories, you’ll need an individual KPDES permit or an alternative permit. KDOW will review your application and may impose additional monitoring or BMP requirements. Pro SWPPP can help you determine if your site qualifies for KYR10 or needs an individual permit.

Thresholds and Exemptions

The acreage that counts is the total disturbance across the entire common plan of development or sale, not just the piece you personally are building, and that is what catches single-lot builders working inside a larger subdivision. The one-acre and common-plan rule is covered in full on its own page. If you are not sure how your site gets counted, settle it with the Division of Water before you disturb soil rather than after.

Already know your site is covered? Get your Kentucky SWPPP started so the plan is finished before the seven-day eNOI window closes on you.

Industrial Stormwater Permits in Kentucky

Industrial facilities that discharge stormwater from manufacturing, processing, or storage areas need coverage under KYR000000, Kentucky’s Multi-Sector General Permit, which took effect August 1, 2023 and expires July 31, 2028. This includes facilities like metal fabricators, chemical plants, recycling operations, and equipment yards. A facility with genuinely no exposure can instead file a No Exposure Certification (KYNE) rather than carry full permit coverage. If your facility has outdoor materials, equipment, or activities exposed to rain or snow, you likely need industrial stormwater coverage.

The Industrial General Permit requires a SWPPP that identifies pollutant sources, describes BMPs, outlines spill prevention measures, and details employee training programs. You must conduct regular inspections, monitor discharge quality, and update your SWPPP annually or when site conditions change.

Form F and Individual Permits

Most industrial operators apply using Form F for general permit coverage. This form asks for facility information, industrial activities, potential pollutants, and proposed BMPs. If your facility has unique risks or discharges to sensitive waters, KDOW may require an individual permit with site-specific limits and monitoring.

High-risk facilities may need quarterly or annual sampling to demonstrate that BMPs are working. KDOW sets monitoring requirements based on your industrial sector and pollutant potential. Pro SWPPP can prepare your industrial SWPPP and help you navigate Form F or individual permit applications.

Industrial SWPPP Requirements

Your industrial SWPPP must include:

• Site maps showing drainage patterns, outfalls, and pollutant sources
• Descriptions of BMPs for erosion control, spill prevention, and good housekeeping
• Inspection schedules and documentation procedures
• Employee training plans
• Spill response procedures and emergency contacts

KDOW provides a SWPPP guide for industrial operators on its website. The guide walks you through each section and provides examples. Pro SWPPP takes the guesswork out of this process by delivering a fully compliant, ready-to-implement SWPPP tailored to your facility.

Required BMPs for Kentucky Construction Sites

Your SWPPP must describe the BMPs you’ll use to prevent erosion and control sediment. Kentucky requires both structural controls (like silt fences and sediment basins) and non-structural practices (like phasing and revegetation). The specific BMPs depend on your site’s soil type, slope, drainage patterns, and proximity to streams or wetlands.

KDOW gives you flexibility in choosing BMPs, but you must demonstrate that your controls will protect water quality. Your SWPPP is a “living document” that you update as conditions change. If a BMP fails or site conditions shift, you must document the change and adjust your plan accordingly.

Erosion Prevention Practices

Erosion prevention stops soil from moving in the first place. Common practices include:

• Preserving existing vegetation wherever possible
• Phasing construction to minimize exposed soil at any one time
• Stabilizing slopes with seed, mulch, or erosion control blankets
• Installing temporary or permanent ground cover as soon as areas are graded

Kentucky emphasizes rapid stabilization. You must stabilize disturbed areas within 14 days if no further disturbance is planned. Final stabilization means all soil-disturbing activities are complete, and uniform vegetative cover or equivalent permanent stabilization is in place.

Sediment Control Practices

Sediment controls capture soil that does wash off. These include:

• Silt fences along downgradient perimeters
• Sediment basins or traps for larger drainage areas
• Check dams in ditches and swales
• Inlet protection devices on storm drains
• Stabilized construction entrances to prevent tracking mud onto roads

You must inspect and maintain these controls regularly. A clogged silt fence or overtopped sediment basin can cause a discharge violation. Pro SWPPP includes maintenance schedules and documentation templates in every plan we prepare.

Post-Construction BMPs

Kentucky requires Permanent Treatment Practices (PTPs) for sites that will have impervious surfaces after construction. PTPs include:

• Stormwater ponds or wetlands
• Bioretention cells (rain gardens)
• Permeable pavement
• Green roofs or vegetated swales

Your SWPPP must describe how you’ll design, install, and maintain these PTPs. Local MS4s may have additional post-construction requirements. Check with your city or county before finalizing your plan.

SWPPP Inspection Requirements in Kentucky

Section 2.2.7 of KYR100000 defines regular inspections two ways and you choose one. Either inspect at least once every seven calendar days, which carries no rainfall trigger at all, or inspect at least once every fourteen calendar days and within 24 hours after any storm event of 0.5 inch or greater. The half-inch trigger belongs to the fourteen-day option only, so a contractor running the seven-day schedule owes no post-storm inspection. Separately, areas that have reached temporary or final stabilization must still be inspected at least once a month until final stabilization is achieved and coverage is terminated. Linear projects may use representative inspections covering 0.25 miles above and below each right-of-way intersection.

Inspections must cover all disturbed areas, BMPs, material storage areas, and discharge points. You must document each inspection, noting the date, time, inspector name, observations, and any corrective actions needed. Keep these records on-site with your SWPPP.

Who Can Conduct Inspections?

Kentucky mandates no particular certificate. Section 2.2.7(3) requires that inspections be performed by personnel knowledgeable and skilled in assessing conditions at the construction site, with training in stormwater construction management, and it names KEPSC, CEPSC, CPSWQ, TNEPSC and CESSWI as examples of acceptable training before accepting other similar training as well. None of those five is required by the permit, and any page telling you Kentucky requires one of them is wrong. Many contractors designate a trained person on their crew or hire a third-party inspector; CPESC-certified professionals like those at Pro SWPPP bring the experience to catch a failing BMP before a regulator does.

KDOW and local MS4 inspectors also conduct audits. They can show up unannounced to review your SWPPP, inspect your BMPs, and issue violations if you’re not compliant. Staying ahead with regular inspections and prompt corrective actions reduces your risk of enforcement.

Documentation and Recordkeeping

Your inspection records must include:

• Date and time of inspection
• Name and title of inspector
• Description of site conditions and BMP performance
• Any deficiencies or maintenance needs
• Corrective actions taken and completion dates

Store these records on-site with your SWPPP. KDOW can request them at any time. Pro SWPPP provides inspection templates and ongoing support to help you stay organized and compliant.

Enforcement and Penalties in Kentucky

Kentucky takes stormwater violations seriously. KDOW and local MS4s enforce compliance through inspections, notices of violation, administrative orders, and civil penalties. Fines can reach thousands of dollars per day per violation. Stop-work orders can halt your project until you fix the problem.

Common violations include:

• Starting work before obtaining permit coverage
• Failing to implement or maintain BMPs
• Missing or incomplete SWPPP documentation
• Discharging sediment-laden water to streams or storm drains
• Not conducting required inspections

KDOW issues compliance assistance first, but repeat or egregious violations trigger enforcement. Local MS4s can also issue fines and stop-work orders. Some cities require engineer-prepared SWPPPs and site visits before granting building permits, adding another layer of accountability.

Penalty Ranges

KRS 224.99-010(1) authorizes a civil penalty of up to $25,000 for each day during which a violation continues, for violations of KRS 224.70-110 or of any permit, administrative regulation or order of the cabinet issued under it. A knowing violation is a Class D felony under KRS 224.99-010(4), with each day treated as a separate violation. The actual amount turns on severity, duration and environmental impact, and a single sediment discharge to a stream can carry corrective-action costs and legal fees well beyond the penalty itself.

Staying compliant is cheaper than paying fines. Pro SWPPP delivers CPESC-certified SWPPPs that meet all Kentucky requirements, helping you avoid enforcement actions and keep your project on track.

Want the number before you commit? Get a fixed-price SWPPP estimate for your Kentucky site.

Recent Enforcement Actions

While specific case details and penalty amounts are not widely published, KDOW conducts hundreds of inspections each year. Local MS4s in cities like Berea, Shelbyville, and Northern Kentucky communities actively enforce stormwater rules. Contractors who fail to file an NOI, lack a SWPPP, or allow sediment discharges face immediate corrective action orders and fines.

KDOW presumes that ongoing projects with existing SWPPPs are compliant unless an inspection or complaint triggers a review. This means you can’t assume your old plan still works. Keep your SWPPP current and your BMPs maintained to avoid surprise violations.

How to File Your NOI in Kentucky

Filing your Notice of Intent (NOI) is the final step before you can start construction. The NOI tells KDOW that you intend to discharge stormwater under the KYR10 permit and that you have a compliant SWPPP in place. You must submit the NOI before you disturb any soil.

Here’s the step-by-step process:

Step 1: Develop Your SWPPP

You cannot submit an NOI until you have a complete, site-specific SWPPP. This includes site maps, BMP descriptions, inspection schedules, and contact information for all operators. Pro SWPPP prepares your SWPPP in 72 hours or less, so you’re ready to file as soon as your site is permitted.

Step 2: Complete the NOI Form

KDOW provides the NOI form on its website. You’ll need to provide:

• Project name, location, and acreage
• Owner and operator contact information
• Receiving water body and watershed
• Estimated start and completion dates
• Certification that your SWPPP is complete and compliant

If multiple operators are involved, each must file a separate NOI or share one NOI with delineated responsibilities. Make sure the operator listed on the NOI matches the operator responsible for SWPPP implementation.

Step 3: Submit the NOI

Kentucky no longer accepts paper Notices of Intent or Notices of Termination. File the eNOI-SWCA electronically through the Kentucky DEP eForms portal at dep.gateway.ky.gov, a minimum of seven days before you intend to start work. There is no filing fee: 401 KAR 5:310, Section 2, Table 2 lists stormwater construction general permit coverage at $0, so the only cost of coverage is preparing the plan behind it. Keep a copy of the submitted eNOI with your SWPPP on-site.

Step 4: Maintain Coverage Throughout Your Project

Once your NOI is submitted, you have coverage under the KYR10 permit. Keep your SWPPP on-site, conduct inspections, maintain BMPs, and update your plan as needed. If you transfer operational control to another party, they must file a new NOI or amend the existing one.

Step 5: File a Notice of Termination (NOT)

When your project is complete and final stabilization is achieved, you must file a Notice of Termination. This tells KDOW that you no longer need permit coverage. You must maintain your SWPPP and inspection records for at least three years after termination.

Pro SWPPP guides you through the entire NOI and NOT process. We make sure your paperwork is complete, accurate, and submitted on time.

Don’t want to mess with all the paperwork? Order your SWPPP now with Pro SWPPP Professional CPESC Certified SWPPP Services.

Who Can Prepare and Sign Your Kentucky SWPPP?

Kentucky requires no licensed engineer and no state-issued credential to write a SWPPP. Under Section 2.2.9(1) the plan must be signed and certified by a person described in 401 KAR 5:060, Section 4, which in practice means the construction site operator who signed the Notice of Intent, or a representative whose authorization is made in writing and included in the SWPPP itself. A handful of local jurisdictions go further than the state does: Berea and Shelbyville among them require engineer-prepared plans and a site visit before they will release a building permit, so confirm the city or county rules before you finalize anything.

Pro SWPPP is a family-owned firm with 20+ years in stormwater compliance and 180+ five-star Google reviews. Our CPESC-certified staff prepare site-specific plans that satisfy the KYR100000 conditions and the local MS4 overlays in Louisville, Lexington and Northern Kentucky, delivered in 72 hours or less.

Not sure what your project needs? Schedule a Free SWPPP Consultation with CPESC Certified SWPPP Expert Derek E. Chinners.

Learn more about our services in other states: Texas SWPPP Services and Georgia SWPPP Services. Visit our About page to learn more about our team and mission.

FAQ

Do I need a SWPPP in Kentucky if I’m disturbing less than one acre?

You need a SWPPP if your project is part of a larger common plan of development that totals one acre or more. For example, if you’re building one lot in a 10-lot subdivision, the total disturbance counts. If your standalone project is under one acre and not part of a larger plan, you’re exempt from the KYR10 permit. Check with your local building department, as some cities and counties have their own erosion control requirements.

How long does it take to get KYR10 permit coverage?

Coverage is not automatic and it is not immediate. The permit requires the eNOI to be filed a minimum of seven days before construction activities commence, and authorization to discharge takes effect only upon the issuance of written notification of coverage by the Division of Water. DOW will not process an NOI that is incomplete, inaccurate, or in an incorrect format, so a filing error restarts that clock. Your SWPPP has to be finished before the eNOI goes in. Pro SWPPP prepares the plan in 72 hours, which is what gets the seven-day window started sooner.

Can I use my SWPPP from another state in Kentucky?

No. Kentucky requires a site-specific SWPPP that addresses your project’s unique conditions and complies with KPDES rules. While the general structure is similar across states, Kentucky has specific requirements like sediment TMDL exclusions and post-construction treatment practices. Pro SWPPP prepares Kentucky-compliant plans that meet all state and local rules.

What happens if I don’t file an NOI or have a SWPPP?

Starting work without an NOI and SWPPP is a violation of Kentucky law. KDOW can issue a stop-work order, fine you thousands of dollars per day, and require corrective actions. Local MS4s can also enforce. It is much cheaper and faster to get compliant before you start. Get a fixed-price SWPPP estimate and have the plan in hand before the eNOI goes in.

Do I need an engineer to prepare my SWPPP in Kentucky?

Kentucky does not require a professional engineer (PE) to prepare your SWPPP for the KYR10 permit. However, some local jurisdictions (like Berea and Shelbyville) require engineer-prepared plans and site visits. CPESC-certified professionals like Pro SWPPP can prepare compliant SWPPPs that meet both state and local requirements. Check with your city or county before finalizing your plan.

How often do I need to inspect my site?

You pick one of two schedules: once every seven calendar days, which carries no rainfall trigger, or once every fourteen calendar days plus within 24 hours after any storm event of 0.5 inch or greater. Areas that have reached temporary or final stabilization must still be inspected monthly until coverage is terminated. Document each inspection and keep the records on-site with your SWPPP.

Can I discharge to a stream with a sediment TMDL?

No. The KYR10 Construction General Permit prohibits discharges to waters impaired for sediment with an approved TMDL. You’ll need an individual KPDES permit or alternative permit. KDOW will review your application and may impose additional monitoring and BMP requirements. Pro SWPPP can help you determine your eligibility and prepare the necessary permit application.

For more information on federal stormwater rules, visit the EPA NPDES Stormwater Program.

Ready to get started? Order your SWPPP now or schedule a free consultation with Pro SWPPP.

Visit Pro SWPPP and see why contractors nationwide have left us 180+ five-star Google reviews.

Stop Babysitting Kentucky’s Stormwater Paperwork

Here’s the open secret of construction stormwater compliance: every state and county runs its own version of the same headache — a clunky permit portal, a Notice of Intent that has to be filed just so, fees, inspection logs, and a review team that loves bouncing things back “with revisions.” Kentucky is no exception. You didn’t get into construction to moonlight as a stormwater clerk at 9 PM.

That’s the entire point of Pro SWPPP. We handle all of it — your Kentucky SWPPP, the eNOI filing, and the inspection documentation, all prepared by CPESC-certified staff — done in 72 hours, with 24-hour expedited turnaround when the clock’s against you. You break ground; we wrestle the bureaucracy.

By Derek E. Chinners, CPESC — Founder & Stormwater Consultant, Pro SWPPP, LLC

Related: What is a SWPPP? · When is a SWPPP required? The one-acre and common-plan rule · SWPPP inspection frequency · What a SWPPP costs