PWS Attachments 1-4.pdf

PDF 1 MB Posted

Attached to
Dworshak Dam Liquid Fertilizer Federal contract opportunity
Solicitation number
W912EF25Q0026
Issued by
Department of the Army Corps of Engineers Engineering District Walla Walla

About this file

Attachment 1 is a technical specification document detailing sample preparation, analysis methods, and standards for total metal concentration testing, specifically focusing on Arsenic (As) measurement using Atomic Absorption Inductively Coupled Plasma / Mass Spectroscopy (ICP/MS) at parts per million (ppm) levels for fertilizer testing. The document is part of the Dworshak Dam Liquid Fertilizer solicitation (W912EF25Q0026) issued by the Department of the Army Corps of Engineers Engineering District Walla Walla, indicating a precise metallurgical and environmental analysis requirement for liquid fertilizer products related to the Dworshak Dam project.

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Other files attached to Dworshak Dam Liquid Fertilizer, newest first.
File Type Posted
W912EF25Q0026 Amendment 0004.pdf PDF
W912EF25Q0026 Amendment 0003.pdf PDF
W912EF25Q0026 Amendment 0002.pdf PDF
W912EF25Q0026 Amendment 0001.pdf PDF
W912EF25Q0026 - Solicitation.pdf PDF

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ATTACHMENT 1

Sample preparation, analysis methods, and standards for Total Metal Concentration

Metal Atomic Absorption

Inductively Coupled

Plasma / Mass

Spectroscopy

(ICP/MS)

ppm

Target for Fertilizer

Arsenic (As) 6020 <1.0000

Cadmium (Cd) 6020 <1.0000

Cobalt (Co) 6020 <1.0000

Lead (Pb) 6020 <1.0000

Molybdenum (Mo) 6020 <1.0000

Nickel (Ni) 6020 <1.0000

Selenium (Se) 6020 <1.0000

Zinc (Zn) 6020 <1.0000

Mercury (Hg) 7470A*, 7471A* <0.5000

Sample Preparation 3050B

*Sample preparation method 3050B cannot be used for an analysis of mercury. Instead, the sample preparation methods are described under procedures for analysis methods 7470A and 7471A.

Laboratory analysis shall comply with analytical and sampling test methods described in the latest version of U.S. Environmental Protection Agency’s publication SW-846, “Test Methods for

Evaluating Solid Waste, Physical/Chemical Methods.”

The latest version of the SW-846 can be accessed online at: https://www.epa.gov/hw-sw846

A paper copy of SW‐846 may be obtained by contacting:

National Technical Information Service (NTIS)

U.S. Department of Commerce

5285 Port Royal Road Springfield, VA 22161

(800) 553‐NTIS (553‐6847) 703‐605‐6000 (sales)

703‐605‐6900 (fax order)

Outside the continental U.S., call 703‐605‐6000 https://www.epa.gov/hw-sw846

ATTACHMENT 2

ATTACHMENT 3

Secondary Containment area

Tanks enclosed in containment area

ATTACHMENT 4

Product Test Standards (Att1 - needs review).pdf
03a_DWA Liquid Fertilizer 2021 - Spec Attachments (1-3).pdf
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