For SWM site plans that involve subdivision and land development,
the applicant shall provide a financial guarantee to the municipality
for the timely installation and proper construction of all stormwater
management controls as required by the approved SWM site plan and
this chapter equal to 110% of the total cost of construction of the
required facilities/controls in accordance with the provisions of
Sections 509, 510, and 511 of the Pennsylvania Municipalities Planning
Code.