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Categorical Exclusion Determinations
To further transparency and openness in its implementation of the National Environmental Policy Act (NEPA) process, the Presidio Trust documents its Categorical Exclusion (CE) determinations involving the categories of actions identified in Section 1010.7 of the Trust’s NEPA regulations. The CE database may be searched by planning district, project type, CE applied, or the year initiated. The database is updated approximately monthly. For additional information on the Trust’s NEPA compliance program, email N2@presidiotrust.gov.
 
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Project Description
Project Number: 15-017
Project Name: Korean War Memorial
Planning District: Main Post
Project Type: Landscaping/Site Work
CE Applied: Installation of signs, displays, and kiosks
CE Date: 3/12/2015
Project Description:
The purpose of this memorial is to commemorate the Korean War and acknowledge the sacrifices made by its participants. The local foundation that is funding the memorial wishes to educate all on the history of what is often termed the forgotten war, establish the conflict’s connection to the Presidio of San Francisco, and remind future generations about this conflict. The memorial will be located at the intersection of Lincoln Boulevard and Sheridan Avenue, west of the Riley Street residences, set within a contemplative garden. An accessible walkway from Sheridan Avenue will pass through a low entry wall with signage and two interpretive waysides leading into a curvilinear plaza bounded on the east side by the memorial wall, which will be clad in granite with images from the war with supporting text. Three small sets of stairs will exit the plaza to the northwest to a landing in a small decomposed granite plaza with a drinking fountain and two additional interpretive waysides. A DG-paved pathway will extend from the plaza along Lincoln Boulevard and run both towards Riley Street as well as up to Lincoln Boulevard. Benches sited toward the bay views along the pathway will allow for remembrance and reflection. Landscape enhancements will be consistent with the surrounding developed area and applicable guidance from the West of Main Parade Cultural Landscape Report (2011).

Project Number: 15-018
Project Name: Riley Avenue Residences Landscape Enhancements
Planning District: Main Post
Project Type: Landscaping/Site Work
CE Applied: Landscaping and landscape maintenance
CE Date: 3/12/2015
Project Description:
The Riley Avenue residences (built 1909 and 1931), a small historic neighborhood consisting of just six duplex structures, are in need of landscape rehabilitation and upgrades. The neighborhood is one of the last in the Presidio to receive such improvements. Landscape treatments will be similar to previous undertakings at the Liggett and Portola residential neighborhoods, which feature identical buildings, and consistent with guidance in the West of Main Parade Cultural Landscape Report (2011). Plantings will include the addition of a few forest species trees to maintain the historic character of the neighborhood in anticipation of the loss of remaining, declining plantings from the earlier historic forest. Historic sidewalk alignment and widths will be maintained where visible from the fronts of the buildings. Only in the backs, typically out of view, will there be additions of concrete creating outdoor use areas consistent with modern day use, and treatments at similar neighborhoods. Approximately 24 pull-in parking spaces off of Ord Street (at the rear of the eastern buildings) will be added. The parking spaces will be constructed of pervious concrete, and match those installed on the opposite side of Ord Street, part of the Taylor Road parking lot improvements completed in 2012 (project 11-062). The cobble runnel on the west edge of Ord Street will be rehabilitated and reactivated as part of the parking stall installation, matching the treatment on the opposite side of the street. The non-historic storage sheds may be removed as part of this project, pending further cost analysis.

Project Number: 15-019
Project Name: Verizon Wireless “Presidio West” Cell Site #16
Planning District: PHSH
Project Type: Cell Sites
CE Applied: Leasing or sale of real or personal property
CE Date: 3/12/2015
Project Description:
Verizon seeks to improve the coverage and capacity of their network, specifically the areas west, south and east of the proposed project location near building 1450 at Battery Caulfield. This location, which offers the best line of sight to the intended coverage areas, is preferred by Trust staff over a previously considered site about 275 feet to the northwest that was rejected due to limited ground space and visual impacts (cancelled project 14-023). The proposed project includes a new 130-foot lattice tower with 12 antennas mounted at a centerline of 126 feet, and a 12-foot by 16-foot (10 feet tall) pre-fabricated equipment shelter installed underneath the tower legs within a fenced 28-foot by 32-foot enclosure. The fence will measure six feet tall. All necessary power and telco infrastructure will be placed outside the equipment area to allow easy access for future carriers wishing to co-locate. The tower will be engineered and the equipment shelter will be situated to support two more carriers. Radio Frequency (RF) Notice signs will be placed on the fence line around the perimeter of the site. After construction is complete and the site is up and running, Verizon service technicians will typically visit the site once or twice per month for routine maintenance.

Project Number: 15-021
Project Name: Mountain Lake Wildlife Containment Fencing
Planning District: South Hills
Project Type: Miscellaneous
CE Applied: Designation of environmental study and research areas
CE Date: 3/9/2015
Project Description:
The reintroduction of wildlife to Mountain Lake is envisioned in the Mountain Lake Adaptive Management Plan (project 13-029). Species that regularly use upland habitat (chorus frogs, Western Pond turtles, and newts) requires the installation of a containment fence in order to ensure the safety of the animals (e.g. from the highway and dogs) and control/prevent the dispersal from the lake. The majority of the lake’s footprint (including upland habitat) will be fenced to capture valuable turtle nesting habitat while preventing nesting on the golf course or dispersing onto Highway 1/residential areas south. The fencing structure will be approximately 30 inches high made of durable black plastic mesh sunk down 5 inches, which will be secured with 2.5-foot high t-posts roughly every 15 to 20 feet. In order to install the fencing, a corridor with a vegetation-free zone of about 3 to 4 feet wide will be cleared beforehand. Much of the 6,300 feet of fencing will follow on the inside of pre-existing fences that surround the lake (the chain link fence along the highway and the West Pacific trail dog exclusion fence).

Project Number: 15-016
Project Name: Building 105 Pre-Design Investigations
Planning District: Main Post
Project Type: Research/Testing
CE Applied: Research, monitoring, inventorying, and information gathering
CE Date: 2/18/2015
Project Description:
Investigative tests are needed to gather information at Montgomery Street Barracks, building 105 (two-company barracks, 1897) to help inform structural, site and architectural designs for a future rehabilitation project. A number of pre-design investigations will be performed both in and around the building footprint that will include geotechnical investigations, 36 interior masonry push tests, 3 basement test-pits, interior hazardous materials testing, a site survey and topographic mapping. Locations have been carefully identified to minimize removal or alterations to historic fabric. All testing will be performed with Trust oversight.

Project Number: 15-002
Project Name: MacArthur Meadow Wetland Restoration
Planning District: East Housing
Project Type: Vegetation Restoration
CE Applied: Removal of non-historic materials and structures
CE Date: 2/17/2015
Project Description:
MacArthur Meadow is located within the Tennessee Hollow Watershed where the three creek tributaries in the watershed converge, forming a single channel at the historic Lovers’ Lane bridge site before flowing north to the restored Thompson’s Reach and Crissy Field Marsh. Historically, the site was a gently sloped marshland before the U.S. Army installed drainage channels and fill. Today, the site is a shallow, concave, oval-shaped dry meadow with a few wetland areas. Vegetation within the site is dominated by non-natives and limited areas of existing freshwater wetland and rock-lined channel. This project will restore an ecologically functional, freshwater wet meadow and riparian habitat unique to the Presidio and San Francisco. Non-native vegetation will be cleared to allow for replanting with a diverse array of native wetland and upland plant species. Approximately 23,000 individual plants comprising a diverse mixture of roughly 60 different native species will be used. The site will be graded to achieve desired hydrologic connectivity and topography requiring the removal of approximately 10,000 cubic yards of soil/fill materials. Opportunities to beneficially reuse materials in other nearby locations will be considered wherever feasible. Final grading will create a network of 1,500 feet of new earthen creek channels, 3.82 acres of new wetland, and 0.12 acres of upland for a total of 3.94 acres. The existing at-grade trail (Lovers’ Lane) bisecting the site will be replaced with an elevated boardwalk designed to resemble the boardwalk that was historically in this location. Site restoration will take into account data collection related to soil and groundwater conditions, a conceptual model, and watershed-wide ground-surface water model. The project will retain and/or incorporate contributing landscape and drainage features into the restoration plan, and will follow a site-specific archaeological management assessment (AMA) and cultural landscape treatment recommendations (Main Post CLR) in order to avoid adverse effects to historic resources.

Project Number: 15-015
Project Name: Cavalry Stables Parking Lots Construction
Planning District: Crissy Field
Project Type: Transportation/Parking
CE Applied: Rehabilitation or improvement of historic properties
CE Date: 2/17/2015
Project Description:
Currently there are 153 parking spaces in the parking area immediately surrounding the Hangar Complex buildings at the western end of Crissy Field (Area B), and 93 spaces in the lot surrounding historic buildings 667 and 668 (Cavalry Stables, built 1914). These spaces are insufficient to serve the recreational and visitor-oriented uses called for in the PTMP. This project will construct an additional 170 spaces in a series of lots on the east and west sides of McDowell Avenue, north of the historic stables, in order to support the demand generated by the buildings in the two areas. The site will be graded and sub base and/or base material for the parking lots will be installed potentially using material imported to the site for the Presidio Parkway staging areas. Other elements of the work include curbs, parking lot paving, lighting, planting, bio-swales, irrigation and construction of pathways connecting to nearby buildings and roadways. Drive aisles of the parking lot will be standard asphalt paving and the parking stalls will be pervious concrete. Stormwater treatment will be coordinated with the planned stormwater project to control flow to outfalls I-J-K-L. Lighting will minimize up-light and trespass, and will go dark or be reduced to a minimum level afterhours. Restrictions set forth in land use controls established for the area will remain in effect. The parking lot design will follow treatment recommendations in the 2005 Cavalry Stables Cultural Landscape Report, and be coordinated with the surrounding landscape design for the Presidio Parkway project.

Project Number: 15-014
Project Name: Fort Scott Officers' Club Landscape Enhancements
Planning District: Fort Scott
Project Type: Landscaping/Site Work
CE Applied: Landscaping and landscape maintenance
CE Date: 2/9/2015
Project Description:
In the fall of 2010, the landscape architectural firm RHAA completed a landscape study for the grounds surrounding the Fort Scott Officers Club (building 1331, constructed 1921), which expanded on the treatment recommendations in the 2008 Fort Scott Cultural Landscape Assessment (CLA). The study included an existing plant inventory and concept studies for landscape treatments surrounding the building and adjacent tennis courts. Recently the site has been identified as a possible location for focused volunteer landscape maintenance and enhancement. The RHAA study and CLA will serve as guides for the effort, as well as ongoing maintenance and limited planting. As the initial work will be undertaken by volunteers (and later, possibly under landscape contract), it is expected to proceed gradually. The work will center on the beds east of the tennis courts, referred to as the Palm Garden in the RHAA study in recognition of the several types of palms located there. A small number of ornamental plants known to be aggressive invaders at this location will be cleared and replaced by palms, consistent with the landscape’s highly ornamental historic character. Trust landscape crews and the Historic Landscape Architect will direct the volunteers to avoid adverse effects to this important but degraded site.

Project Number: 15-011
Project Name: East Mason Electric Undergrounding
Planning District: Crissy Field
Project Type: Infrastructure
CE Applied: Installation of underground utilities
CE Date: 1/13/2015
Project Description:
This project will relocate existing overhead electric distribution facilities into new and existing underground pathways in Mason Street. The project facilitates future rehabilitation of the Mason Street warehouses (buildings 1182 through 1188), and supports the Trust’s policy to remove overhead electric service where feasible and beneficial. The new underground alignment consists of two 4-inch conduits from the existing electric vault in Mason Street just west of building 1185 to a new electric vault at the west end of building 1188. The alignment will be constructed by typical open cut excavation methods. Traffic controls may reduce traffic to a single lane around the work zone with flaggers directing one-way traffic. Excavated soil will be reused as backfill with any excess or non-reusable soil disposed offsite. The project is largely outside of archaeologically sensitive areas, forested or natural areas, remediation zones and trails. The railway alignment, a historic feature in the project vicinity, will be avoided.

Project Number: 15-012
Project Name: Building 38 3rd Floor Tenant Improvement
Planning District: Main Post
Project Type: Rehabilitation/TI
CE Applied: Rehabilitation or improvement of historic properties
CE Date: 1/13/2015
Project Description:
This project will provide new office space for a subtenant on the third floor (attic) of historic building 38 (Barracks/Sixth Army Headquarters, built 1940). The work includes construction of new interior partitions, doors; and installation of new lighting fixtures, carpet and painting. The project will not alter or damage existing historic finishes including original perimeter walls, windows, bull nosed window sills, concrete posts, and tile detailing found at the base of some walls and posts.

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