Greene, Tweed & Co., LLC and PFAS, what the company told Minnesota

Greene, Tweed & Co., LLC has filed 4 PFAS disclosures with the Minnesota Pollution Control Agency, covering 4 products and naming 1 compound across 1 component. Everything below is the company’s own statement to a regulator, not our assessment.

Disclosures filed
4
Products covered
4
Compounds named
1
Declared uses
1

All 4 filings

Seals/O-RingsAvalon Products
Where in the product,
Industrial Pumps - Replacement Parts/Accessories - Type Of Pump Replacement Part/Accessory - O-Ring
What it is doing,
Chemical reaction regulator
Compound,
Fluoropolymers
How much the filer reports,
600,000 to <900,000 ppm (90%)

Formulation Codes Avalon 01-Avalon 99 · Minnesota disclosure MN-NH3G7BV · published 2026-09-30

Seals/O-RingsChemraz Products
Where in the product,
Industrial Pumps - Replacement Parts/Accessories - Type Of Pump Replacement Part/Accessory - O-Ring
What it is doing,
Chemical reaction regulator
Compound,
Fluoropolymers
How much the filer reports,
600,000 to <900,000 ppm (90%)

Formulation Codes 500-XRZ · Minnesota disclosure MN-NH3G7BV · published 2026-09-30

Seals/O-Ringsfluoroelastomer Products
Where in the product,
Industrial Pumps - Replacement Parts/Accessories - Type Of Pump Replacement Part/Accessory - O-Ring
What it is doing,
Chemical reaction regulator
Compound,
Fluoropolymers
How much the filer reports,
600,000 to <900,000 ppm (90%)

Formulation Codes 700-800 · Minnesota disclosure MN-NH3G7BV · published 2026-09-30

Seals/O-RingsXyfluor Products
Where in the product,
Industrial Pumps - Replacement Parts/Accessories - Type Of Pump Replacement Part/Accessory - O-Ring
What it is doing,
Chemical reaction regulator
Compound,
Fluoropolymers
How much the filer reports,
600,000 to <900,000 ppm (90%)

Formulation Codes 860, 870, 884 · Minnesota disclosure MN-NH3G7BV · published 2026-09-30

Other companies that have filed

Source, manufacturer filings made to the Minnesota Pollution Control Agency under the state’s PFAS in Products law and published through PRISM, run by the Interstate Chemicals Clearinghouse. These are the manufacturers’ own statements, not our grades and not laboratory results. A filing covers the product as sold in Minnesota and says nothing about products or formulations the company did not file. Reporting was still open when this was pulled, so absence from the set is not evidence a product is PFAS-free.