J-1800000-12 (MCSF-BI) Stormwater System Map.pdf

This document is a stormwater system map for the Marine Corps Support Facility Blount Island Installation in Jacksonville, Florida, dated August 2025. The detailed aerial view illustrates the comprehensive stormwater drainage infrastructure, including multiple drainage basins, retention ponds, and watershed drainage areas. The legend provides specific measurements: the stormwater segment totals 50,139.4 linear feet, with drainage basins covering 32.4 acres and retention basins spanning 30.8 acres. The map shows various outfalls, culverts, and drainage lanes across the facility, with a note indicating that Outfalls 7 and 13 have been demolished/removed. The document includes precise area calculations for each drainage segment and pond, offering a technical overview of the facility's water management system.