Ventilation cleaning Specifications

ORIGINATOR: Russ Joyner
DATE: 29 October 2026

NAICS: 336611

1. SCOPE:

Title: INSPECT AND CLEAN SECTIONS OF THE FWD VENTILATION SYSTEM

2. REFERENCE/PLANS:

2.1 Naval Surface Warfare Center, Carderock Division ltr 9514 Ser 9210/021 of 20 May 2009 2.2 NSSN Class Submarine Ventilation Galley and Scullery DWG# 7067246 Rev XA 2.3 Ventilation Aft Fan Room DWG# 7067266 REV XA

3. REQUIREMENTS:

3.1 Ventilation cleaning shall be conducted in accordance with procedures approved by NAVSEA Code 05Z and the Life Cycle Manager, Carderock Division, Naval Surface Warfare Center (NSWCCD-SSES) Code 921.
3.2 Clean Ventilation System that is connected to the Number 2 Electrostatic Precipitator (ESP). Cleaning will include Parts A1 through A19 and A28. Cleaning shall include all ventilation ducting, fans, associated cleanouts, and connections associated with the listed parts in references 2.2 and 2.3.
3.3. Baseline CO2 and O2 readings shall be taken prior to starting any dry ice cleaning operations in every accessible compartment on the vessel. 3.4 All CO2 and O2 readings shall be taken before and after vent cleaning operations each day. 3.5 CO2 and O2 readings shall be monitored and recorded continuously and in every accessible compartment on the vessel during vent cleaning operations. 3.6 Cleaning shall cease anytime CO2 readings exceed 3000 ppm or O2 level drops below 19.6%. When the cleaning process has been stopped, identify the deficiency and correct. Once corrected and CO2 readings are below 2000 ppm and O2 readings are above 19.6%, then cleaning may be resumed.
3.7 In addition to the monitoring CO2 and O2 levels, all standard shipboard safety procedures shall be followed.
3.8 All workers must possess a valid DOD Secret Security clearance.

4. NOTES:

4.1 The performance location will be at a pier at the Submarine Base, New London, CT. 4.2 The Contractor shall comply with all local, state, and federal Occupational Safety and Health (OSH) and Environmental Protection (EP) rules and regulations as directed by local implementation plans.
4.3 All Contractor personnel shall be a citizen of the United States of America. 4.4 The Contractor shall provide all material and equipment required to complete all requirements of this specification.

4.5 For Contractor personnel that do not have a CAC card or a NCACS card, the following is required to obtain DBIDS credentials to gain access to the base: a. Ensure you provide the names of personnel requiring access to the SUBASE to the NSSF POC. NSSF will pass the information to the SUBASE Pass and ID office