When must the construction record drawing be submitted to the VSMP authority?

The construction record drawing must be submitted to the Virginia Stormwater Management Program (VSMP) authority before permit termination. This timing is crucial because the submission of construction record drawings ensures that the actual construction aligns with the approved plans and meets all regulatory requirements.

By requiring this documentation before the permit is terminated, the VSMP authority can verify that the stormwater management practices implemented during construction are effectively designed to handle runoff and minimize environmental impacts as intended. The requirement aligns with the goals of ensuring compliance and maintaining long-term stewardship over stormwater management practices, which are essential in protecting water quality.

The other timing options do not fulfill the regulatory needs for oversight and verification. For instance, submitting the drawings before the final inspection would not allow for proper documentation of any changes made during construction, while submitting them after project completion would miss the critical opportunity for review and compliance confirmation necessary to satisfy regulatory conditions prior to concluding the permit. Hence, the requirement is strategically timed to facilitate effective oversight by the program authority.