A truck yard or trucking terminal needs a SWPPP when it is subject to an industrial stormwater permit—typically because its primary activity falls within a regulated transportation category, it has exposed industrial materials or operations, and stormwater from the site discharges to a regulated conveyance or receiving water.
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When does a truck yard or trucking terminal need a SWPPP?
A truck yard or trucking terminal needs a SWPPP when it meets the eligibility criteria for an industrial stormwater permit in its jurisdiction. The requirement depends on the facility's primary industrial activity, the presence of exposed materials or operations, and whether stormwater from the site discharges to a regulated conveyance or receiving water.
Under EPA's 2021 Multi-Sector General Permit, motor-freight transportation facilities classified in SIC codes 4212–4231 are covered when they meet the permit's eligibility conditions. These facilities include local and long-distance trucking, public warehousing, and terminal and service facilities for motor-freight transportation. An operator seeking coverage must prepare a SWPPP before submitting the Notice of Intent.
States that administer their own NPDES industrial stormwater programs may impose different requirements. South Carolina requires facilities conducting activities covered by specified SIC codes to obtain industrial stormwater coverage or certify no exposure, and the SWPPP must be developed before applying for coverage under the state's 2022 Industrial General Permit.
Virginia's industrial stormwater regulation requires a SWPPP for a facility covered by that permit and requires new or previously uncovered facilities to prepare and implement it before submitting the registration statement.
The controlling answer depends on the state or EPA-administered jurisdiction, the facility's primary activity, exposed materials and operations, and the current permit's eligibility language. EPA's permit requirements should not be treated as a nationwide rule for states administering their own programs.
Which truck yard activities trigger the SWPPP requirement?
The SWPPP requirement is triggered by specific industrial activities and exposed materials, not simply by the presence of trucks or paved surfaces. EPA's permit-application guidance states that transportation-facility coverage generally applies to listed transportation SIC categories, but only specified areas must be addressed for certain transportation facilities.
A yard used incidentally by another primary business may not qualify as the relevant trucking SIC activity. The facility's primary industrial activity determines whether coverage is required.
- Vehicle maintenance and repair operations
- Equipment cleaning areas
- Fueling and lubrication areas
- Outdoor storage of materials, parts, or equipment exposed to precipitation
- Waste handling or disposal areas
- Loading and unloading areas where materials are exposed
See the SWPPP plan request form.
Can a truck yard avoid the SWPPP requirement through no exposure?
A truck yard may avoid the SWPPP requirement if it qualifies for a no-exposure exclusion or certification. This route is available when all relevant industrial materials and activities are protected from precipitation, subject to the applicable certification and program requirements.
EPA's transportation-sector guidance describes a possible no-exposure route where all relevant industrial materials and activities are protected from precipitation. The facility must certify that it meets the no-exposure conditions and submit the appropriate certification to the permitting authority.
The no-exposure option is not automatic. The facility must demonstrate that industrial materials and activities are not exposed to stormwater, and the certification must be renewed periodically as required by the applicable permit or program. States administering their own programs may have different no-exposure criteria or certification procedures.
A facility that initially qualifies for no exposure but later exposes industrial materials or activities to precipitation must obtain permit coverage and prepare a SWPPP. The no-exposure status must be maintained continuously to avoid the permit requirement.
What must a truck yard SWPPP include?
A truck yard SWPPP must address potential pollutant sources and stormwater controls specific to the facility's operations. The plan must identify areas where industrial activities are exposed to stormwater, describe the pollutants that may be present, and specify the best management practices used to minimize pollutant discharge.
The SWPPP must be prepared before submitting the Notice of Intent for permit coverage. The plan must be kept on-site and updated as necessary to reflect changes in operations, BMPs, or permit requirements.
- A site map showing the location of industrial activities, stormwater discharge points, and structural BMPs
- A description of potential pollutant sources, including vehicle maintenance, fueling, material storage, and waste handling
- A list of BMPs and controls to prevent or minimize pollutant discharge
- Procedures for inspecting and maintaining BMPs
- Spill prevention and response procedures
- Employee training requirements
- Monitoring and recordkeeping procedures as required by the permit
Request a project-specific SWPPP estimate.
How does a truck yard obtain industrial stormwater permit coverage with a SWPPP?
A truck yard obtains industrial stormwater permit coverage by preparing a SWPPP, then submitting a Notice of Intent or registration statement to the permitting authority. The SWPPP must be prepared and implemented before submitting the NOI.
In EPA-administered jurisdictions, the operator submits the NOI electronically through EPA's eNOI system. The permit coverage becomes effective on the date specified in the permit, typically upon submission of the NOI or after a waiting period.
In state-administered programs, the operator follows the state's application procedures. Some states require submission of the SWPPP with the NOI, while others require only the NOI and keep the SWPPP on-site for inspection. The specific procedures and timelines vary by state.
The operator must maintain permit coverage as long as the facility continues to discharge stormwater from industrial activities. The permit must be renewed or continued as required by the permitting authority, and the SWPPP must be updated to reflect changes in operations or permit requirements.
What else should truck yard operators know about industrial SWPPP requirements?
Does every truck yard with outdoor parking need a SWPPP?
No, a truck yard does not need a SWPPP merely because it has outdoor parking or paved surfaces. The SWPPP requirement is triggered by the facility's primary industrial activity, the presence of exposed industrial materials or operations, and whether stormwater from the site discharges to a regulated conveyance or receiving water. A facility used only for parking or storage of clean vehicles, with no maintenance, fueling, or other industrial activities exposed to stormwater, may not require permit coverage.
Is the SWPPP requirement the same in every state for truck yards?
No, the SWPPP requirement varies by jurisdiction. EPA's Multi-Sector General Permit applies in jurisdictions where EPA administers the industrial stormwater program, but states that administer their own NPDES programs may impose different requirements. The controlling answer depends on the state or EPA-administered jurisdiction, the facility's primary activity, exposed materials and operations, and the current permit's eligibility language.
Can a truck yard use the same SWPPP as a construction site?
No, a truck yard subject to an industrial stormwater permit must prepare an industrial SWPPP, not a construction SWPPP. Industrial and construction stormwater permits have different requirements, and the plans are not interchangeable. An industrial SWPPP addresses ongoing operations and permanent BMPs, while a construction SWPPP addresses temporary earth-disturbing activities and erosion and sediment controls.
What happens if a truck yard operates without a required SWPPP?
Operating without a required SWPPP and permit coverage may result in enforcement action by the permitting authority. Penalties and enforcement procedures vary by jurisdiction. The facility should obtain permit coverage and prepare a SWPPP as soon as it determines that coverage is required.
How often must a truck yard SWPPP be updated?
The SWPPP must be updated whenever there is a change in operations, BMPs, or permit requirements that affects the plan. The permit may also require periodic review and update of the SWPPP, even if no changes have occurred. The specific update requirements depend on the applicable permit.
Discuss the SWPPP scope for your project.
By Derek E. Chinners, CPESC — Founder & Stormwater Consultant, Pro SWPPP, LLC