The order the City kept.

NYC-WTC_000165500 – NYC-WTC_000165501

August 14, 1984 DEP letter confirming plan review and noting coordination required for sewer modifications at the World Trade Center.

NYC-WTC_000165502 – NYC-WTC_000165505

June 29, 1984 letter from Port Authority transmitting final drawings and specifications for the WTC Dey Street escalator underpass to DEP.

NYC-WTC_000165506 – NYC-WTC_000165518

June 5, 1984 internal DEP memorandum forwarding a sewer maintenance report by E.A. Britton regarding the WTC Dey Street project.

Removed by the City on 2026-10-03

NYC-WTC_000165519 – NYC-WTC_000165521

July 15, 1982 DEP letter accepting hydraulic drawings for the Dey Street underpass with specific comments on pipe placement.

NYC-WTC_000165536 – NYC-WTC_000165540

March 15, 1982 DEP letter providing engineering requirements for a telephone manhole load above the proposed 13-inch sewer line.

NYC-WTC_000165544 – NYC-WTC_000165549

July 28, 1983 DEP letter discussing comments on preliminary plans for the Church Street underpass and sewer support provisions.

NYC-WTC_000165556 – NYC-WTC_000165557

Mailroom dispatch document regarding the World Trade Center Church Street Underpass project.

NYC-WTC_000165576 – NYC-WTC_000165578

Inter-departmental memo from DEP Bureau of Sewers outlining required inspections for a sewer under the WTC escalator underpass.

NYC-WTC_000165582

Letter from DEP Bureau of Sewers to Port Authority requesting three sets of drawings for the World Trade Center underpass project.

NYC-WTC_000165583

Department letter to Port Authority requesting a status update on project plans submitted in January 1982 which had not yet been answered.

NYC-WTC_000165584 – NYC-WTC_000165586

Department letter providing specific engineering requirements for a telephone manhole load and sewer centerline location.

NYC-WTC_000165587 – NYC-WTC_000165588

Letter from Port Authority confirming revisions to drawings have been incorporated in response to previous DEP comments.

NYC-WTC_000165589 – NYC-WTC_000165590

Letter from DEP to Port Authority regarding insufficient trench width and required pipe specifications for a rerouted sewer at the World Trade Center underpass.

NYC-WTC_000165592 – NYC-WTC_000165594

Letter from Port Authority to DEP submitting revised drawings and schedules for relocating sewer lines at the Church Street underpass.

NYC-WTC_000165599 – NYC-WTC_000165608

Letter from Port Authority enclosing five copies of a revised utility relocation plan for the Dey Street underpass project.