ATTACHMENT V - SUBASEINST 8020.1G.pdf

This document is a Department of the Navy instruction (SUBASENLONINST 8020.1G) establishing procedures for controlling blasting operations at Naval Submarine Base New London (SUBASENLON) in Groton, Connecticut, issued September 5, 2012.

The instruction mandates that all blasting operations incident to construction at SUBASENLON be reviewed and approved 30 days in advance by the SUBASENLON Explosives Safety Officer and SUBASENLON Commanding Officer. The Public Works Officer (PWO) serves as the approving authority for all blasting operations. Key requirements include: blasting contractors must obtain all federal, state, and local permits for purchasing, transporting, handling, storing, and using explosives; no blasting is permitted on Lower Base without Naval Ordnance Safety and Security Activity Explosive Safety Site Approval; blasting is restricted to Monday through Friday, 0900 to 1500 hours, with drilling operations permitted after 1700 only with prior notification and approval; and all commercial explosives must be transported via the most direct route from Gate 7 to the blasting site and cannot be stored overnight on base. Prior to bringing explosives onboard, contractors must submit a blasting safety plan for review by NSSF Safety, SUBASENLON Safety, NAVFAC Safety, and SUBASENLON Fire Department. Additional requirements address safety signals (warning signal, blast signal, and all-clear signal), safety precautions including approved blasting mats to prevent damage, vibration monitoring with limits per Army Corps of Engineers standards, notification procedures, flagmen posting, and recordkeeping requirements including pre-blast and post-blast survey reports, blast seismograph records, and the blasting safety plan submitted to NAVFAC PWO.