Attachment J-1601000-04 (c)- NRL Update Utility Drawings - Chilled Water.pdf

This document is a comprehensive set of utility drawings for the Naval Research Laboratory in Washington, D.C., specifically detailing the chilled water system infrastructure across the facility.

The drawings constitute 82 sheets of technical plans at a 1"=20'-0" scale, organized in a grid system (A-1 through E-13) covering different sections of the NRL campus. The utility plans illustrate the chilled water distribution network, including main supply and return lines, branch connections to individual buildings, valve locations, utility patches, and related infrastructure. Key components identified throughout the drawings include chilled water manifolds, isolation valves, post indicator valves, electric and smartcard sewer manifolds, telephone risers, storm drain inlets, and various building connections numbered sequentially (Buildings 1-275 and related structures). Horizontal and vertical control references are established through GPS coordinates at two locations: "NRL GPS 1" with coordinates N 421,055.56 E 1,304,593.19 at elevation 10.42, and "NRL GPS 2" with coordinates N 422,116.48 E 1,304,673.17 at elevation 10.37. The drawings include a location map, vicinity map, and comprehensive drawing index. All sheets are marked "INFORMATION ONLY—NOT FOR CONSTRUCTION" with an approval date of 30 October 2015, prepared by Summer Consultants Incorporated under Naval Facilities Engineering Command—Washington authority.