Attachment 27: Corrosion Monitoring

Attachment 27

CORROSION MONITORING OF SULFURIC ACID STORAGE TANK (T-12) AND

ASSOCIATED FEED AND FILL PIPING

PROJECT DESCRIPTION: This requirement is for the design and implementation of an annual corrosion monitoring program for the sulfuric acid storage tank and associated feed and fill piping.
(a)

General
The sulfuric acid storage tank and associated stainless steel fill and feed piping is comprised of a 10-foot diameter, 18-foot tall 10,000-gallon lined carbon steel tank which stores 93% sulfuric acid (66° Baume’) used in the wastewater pretreatment plant (WWPP) located at the Department of the Treasury’s Bureau of Engraving and Printing (BEP), 301 14th Street SW, Washington, DC facility. This acid storage tank has a 90-mil Halar liner installed on the interior of the tank to provide added corrosion protection. The tank is contained within a 9-foot tall, 12-foot wide and 13-foot long spill containment tank.
This requirement is to retain NACE certified corrosion specialist personnel (labor) with appropriate thickness testing equipment and materials necessary to design, implement, and perform a one-year corrosion monitoring program having methods, processes and procedures sufficient to produce highly reliable and legally defensible calculated estimates of the remaining lifespan of the acid tank, tank feed and fill piping and associated fittings in the BEP’s Wastewater Pretreatment Plant (WWPP).

(b)

Code and Regulatory Requirements
The labor performed under this requirement must conform to all applicable codes and regulations. Some of the applicable codes are, but not limited to: (1)

29 CFR 1910.146 – Permit-Required Confined Spaces

(2)

29 CFR 1910.133 – Eye/Face Protection

(3)

NACE RP024-94 – Design, Fabrication and Inspection of Tanks for the Storage of Concentrated Sulfuric Acid and Oleum at Ambient Temperatures

(4)

API – 570 – Inspection, Repair Alteration, and Rerating of In-Service Piping Systems

(5)

API – 575 – Guidelines and Methods for Inspection of Existing Atmospheric and Low-Pressure Storage Tanks
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Attachment 27

(c)

(6)

29 CFR Subpart Q – Welding, Cutting and Brazing

(7)

API – 653 – Tank Inspection, Repair, Alteration, and Reconstruction

(8)

NACE RPO 391 – Materials for the Handling and Storage of Concentrated (90 to 100%) Sulfuric Acid at Ambient Temperatures

(9)

District of Columbia Municipal Regulations (DCMR) Title 20 Environment

Work Requirements
The Contractor will be required to provide detailed information addressing the specified requirements: all technical specifications, detailed methodology as