| 2024-03-19 | Letter CAG Steering Committee re boundaries of the Superfund site | US EPA Region 2 |
| 2024-01-11 | Letter to US EPA Region 2 re Superfund site boundaries | CAG Steering Committee |
| 2023-12-22 | Comments to NYS DEC regarding National Grid saltwater pump house permit application | CAG Steering Committee |
| 2023-09-20 | Response to CAG letter regarding transparency
Formal response to CAG letter | US EPA Region 2 |
| 2023-08-10 | NAPL characterization and mobility memorandum
Summary of RI/FS NAPL Testing Data | Newtown Creek Group |
| 2023-08-08 | Letter to EPA regarding transparency | CAG |
| 2023-03-07 | Comments to the US Army Corps of Engineers on the draft NY & NJ Harbor and Tributaries Focus Area Feasibility Study | CAG |
| 2021-08-23 | Responses to CAG comments on the draft Remedial Investigation report | US EPA Region 2 |
| 2021-05-11 | Comments to EPA on the draft Remedial Investigation report | CAG |
| 2020-04-29 | Comments to EPA CSTAG on proposed OU3 focused feasibility study | CAG |
| 2020-02-27 | Comments to EPA on proposed plan for OU2 | CAG |
| 2018-08-22 | Comments to EPA on the revised draft Baseline Ecological Risk Assessment | CAG |
| 2016-07-19 | Letter to NYS DOH on draft Newtown Creek Health Outcomes Review | CAG Steering Committee |
| 2015-02-11 | Letter to NYC DEP on aeration project | Newtown Creek Alliance |
| 2015-02-06 | Response to comments and questions on EPA's Phase 2 work plan | US EPA Region 2 |
| 2014-12-02 | Letter to EPA on EPA's Phase 2 work plan | CAG Steering Committee |
| 2012-12-06 | Response to CAG comments on the draft Baseline Ecological Risk Assessment | US EPA Region 2 |
| 2012-02-16 | Letter to EPA on combined sewage overflows | Newtown Creek Alliance |