Which of the following is a violation that will incur a penalty?

Failure to conduct required inspections is a violation that incurs a penalty because inspections are crucial for ensuring compliance with stormwater management regulations. These inspections help to verify that best management practices (BMPs) are being properly implemented and that potential sources of pollution are being addressed. Required inspections are often mandated by environmental regulations or permits, and failing to conduct them can lead to unaddressed environmental impacts, increased risk of pollution, and noncompliance with local, state, or federal laws.

The other options represent actions that are either part of the permitted process or do not inherently lead to penalties. Permits issued prior to the start of construction signify that approvals are in place and are following due process. Timely submission of the SWPPP (Stormwater Pollution Prevention Plan) is a necessary part of the compliance process and does not constitute a violation if adhered to. Providing the SWPPP for public review is often a transparency requirement designed to engage the community and is not a violation in itself. Thus, the failure to conduct required inspections stands out as the primary infraction that could result in penalties.