| Award | Froth Control Polymer-dep (renewal) | Citywide Administrative Services | CHEMTALL INCORPORATED | $2.7M | Competitive Sealed Bids | Sep 1, 2022 | 85720B8504KXLR001 |
| Award | COAGULANT AID POLYMER - DEP | Citywide Administrative Services | CHEMTALL INCORPORATED | $1.6M | Competitive Sealed Bids | Jan 15, 2020 | 8572000062 |
| Award | CATIONIC POLYMER, THICKENING AND POST THICKENING | Citywide Administrative Services | CHEMTALL INCORPORATED | $2.8M | Competitive Sealed Bids | Nov 19, 2019 | 8572000002 |
| Award | POLYMER, SLUDGE THICKENING - DEP | Citywide Administrative Services | CHEMTALL INCORPORATED | $7.4M | Competitive Sealed Bids | Aug 8, 2019 | 8571900222 |
| Award | FROTH CONTROL POLYMER - DEP | Citywide Administrative Services | CHEMTALL INCORPORATED | $3.2M | Competitive Sealed Bids | Jul 23, 2019 | 8571900188 |
| Award | CATIONIC POLYMER - COAGULANT AID (DEP) | Citywide Administrative Services | CHEMTALL INCORPORATED | $359K | Renewal | Jun 19, 2017 | 8571500269 |
| Award | CATIONIC POLYMER - COAGULANT AID (DEP) | Citywide Administrative Services | CHEMTALL INCORPORATED | $1.1M | Competitive Sealed Bids | Aug 11, 2015 | 8571500269 |