Addition/Renovation of Shop Building, Terlingua Maintenance Facility Completion: 2010 Owner: Texas Department of Transportation Contact: Carlos Mendoza (432)371-2280 Architect/Engineer: Morales & Associates, Architects, Inc. Subcontract Amount/Description: $215,000.00 /Renovation of the existing shop building converting it into an administrative space and the construction of a new shop/maintenance building and miscellaneous site improvements.

Concrete Slab at Pole Barn, Presidio, TX Projected Completion: Nov, 2011 Owner: Big Bend State Park General Contractor: WestMix Contact: Robert Meredith, (432) 295-2666 Amount/Description: $17,100.00 / Construction of 5,500-sf concrete slab with 3000-psi concrete reinforced with #4 rebar and installation of 12-in PVC storm drain pipe and concrete inlet.

LCOGT Telescope Concrete Pads, McDonald Observatory Concrete Subcontract; Construction of four telescope concrete pads and miscellaneous concrete structures to house the LCOGT Domes and the Chow dome. The Project is located at the McDonald Observatory at Fort Davis, TX Category: Concrete Contractor Completion: Decmber 2011 Owner: University of Texas at Austin General Contractor: Warden Construction

Carlson & Elliot Dr. Pump Station Construction of a 10’-6” x 13’-6” generator pad 14 thick, reinforced with a double foundation mat made of #6 rebar at 12 inches of center., including the construction of 20-ft rock-wall. Along with a construction of 50-ft wrought iron fence and gates, including the fabrication galvanized steel trash rack and other miscellaneous modification structural modifications to pump house to furnish and install a new access gate to service the new water pumps Category: Commercial Construction Completion Date: September 2015 Owner: El Paso Water Utilities Location: Carlson Elloit Wy, El Paso, TX 79915 Engineer: M&M Structural

Bus Stop Enhancement Citywide Local Government: Cost $272,582.25 / Consist of Demolition of existing concrete site structures to accommodate new 40-FT X 20-FT bus pads compliant to ADA standards. The project involves 68 sites scattered around the El Paso, TX Region. This project required coordination between municipal and TXDOT traffic engineering departments. Completion Date: April 2014 Owner: Sun Metro - City of EL Paso

Country Club Subdivision Project Consisted of the construction of 340 linear feet of 8 inch sewer line, and the tap of am existing 12 inch sewer line. Construction of four manhole structures, constructio on 8 inch and 6 inch water line and the installation meter services to each lot. Subgrade preparation and construction of a new roadway, consisting of the subgrade preparation, base course layout and two inches of hot mix (Asphalt , including, concrete header curbs. Completion Date: May 2014 Owner: Privet - Geroge Dipp

Baines & Morehead Appartments - Site Construction Keystone is acting as subcontractor to Pavilion construction; work consist of Misc. Site Improvement to Baines and Morehead Apartment. Include construction of new sidewalks, base course, asphalt pavement, parking lot sealing, traffic pavement markings, ADA ramps, Trash enclosures, installation of misc. equipment, brick mortar joint repair, and other Misc. items. Construction contract: $222,680.00 Category: Commercial Construction Completion Date: Under Construction Owner: EL Paso Housing Authority - RAD Project General Contractor: Pavilion Construction

Herbert Apartments - Quadruplex Construction of Multifamily project to include the construction of two quadruplex residential units, to include site development and connecting to existing utilities lines. Owner: Financed by The City of El Paso Community Development Department Construction Contract: $ 818,000.00. Category: Multi-Residential Construction Completion Date: March 09, 2017

Delta Divine Subdivision Development - Multi-Family New subdivision development, consisting of the construction of 395 linear feet rock wall, installation of 8 inch ductile iron sewer, 260 linear feet of new 8-inch sewer line and tap to an existing 12-inch active sewer line, installation of 8-inch water line, Construction of four manhole structures, including meter services to four subdivided lots. Construction of 360 LF roadway, 6- inch base course, a 2-inch-thick hot asphalt road, and concrete curbs, sidewalks. As part of the development, four residential units were constructed, each building slab was monolithically poor with the reinforced concrete foundation. Each concrete slab was pour with an approximately 80CY of 3000-PSI concrete. Owner: Project Vida Community Development Category: Multi-Residential development Completion Date: September 2017

Pico Norte Lift Station Fence Construction of Security Fence for the Pico Norte Pump House, construction of 400 linear ft of a 6-ft high security rockwall fence, including on site cast concrete columns, cast in place concrete cap, 20-in ornamental wrought iron fencing, 6-inch concrete apron, 28-ft double rolling gate, including other misc. items. Construction contract: $125,760.00 Owner: El Paso Water Utilities PSB Category: Commercial Construction Completion Date: November 11, 2017

SITEWORK

Herbert Appartments - Quadruplex Construction of Multifamily project to include the construction of two quadruplex residential units, to include site development and connecting to existing utilities lines. Owner: Financed by The City of El Paso Community Development Department Construction Contract: $ 818,000.00. Category: Multi-Residential Construction Completion Date: March 09, 2017

Pico Norte Lift Station Fence Keystone is acting as subcontractor to Pavilion construction; work consist of Misc. Site Improvement to Baines and Morehead Apartment. Include construction of new sidewalks, base course, asphalt pavement, parking lot sealing, traffic pavement markings, ADA ramps, Trash enclosures, installation of misc. equipment, brick mortar joint repair, and other Misc. items. Owner: EL Paso Housing Authority - RAD Project Construction contract: $222,680.00 General Contractor: Pavilion Construction Completion Date: Under Construction

801 Mississippi Home Remodel - Design Build Consist of the remodeling an existing 1600-sf structure and a 600-sf addition. This project included the demolition of most of the interior partition and the raising of the flat ceiling at the living room and dining room form 8-ft to 14-ft, while protecting the integrity of the existing roof structure. Framing of new partition walls and roof for the new addition. New floor and wall finishes, upgrade of all plumbing, electrical and mechanical systems. Including the exterior upgrades, which include painting, new concrete driveway and new roofing at the addition are. Owner: Dr. Cyntiha Beamer Design Build: Project Designed and constructed by Keystone Completion Date: July 2016

11453 Lindenwood- New Residence - Design Build Construction of new 2700-SF Single Family Residence. Consisting of an open concept multifamily room, dining room, and Kitchen. Two guest bedrooms, master bedroom with all amenities of a walking closet, dressing room and bathroom, and office space, workout room and a double garage room. constructed over a turn-down slab on grade foundation on a wood frame, stucco structure and shingle roof. Owner: Fernandez Family Design Build: Project Designed and constructed by Keystone Completion Date: Dec 2015

RESIDENTIAL

Addition/Renovation of Shop Building, Terlingua Maintenance Facility Renovation of the existing shop building converting it into an administrative space and the construction of a new shop/maintenance building and miscellaneous site improvements. Owner: Texas Department of Transportation Contact: Carlos Mendoza (432)371-2280 Architect/Engineer: Morales & Associates, Architects, Inc. Subcontract Amount: $215,000. Completion: 2010

Southwest Neuroscience Remodel approximately 4,000 SF of existing Facility to include the reconfiguration of exam rooms, reception area, hallways, conference room, EEG room, medical supply room and support areas. Owner: Dr. Miguel A. Moreno Architect: CEDANS Architects Category: Medical Completion Date: July 2012

Mission Trails Chapel Ligthing Upgrades Project Consisted of the remodeling of the existing Chapel at North loop Building for the LDS Church, including foyer area, Patching and painting of walls and ceilings. All works was performed during week days and the chapel area was reestablish at the end of each week to LDS members use. Owner: FM Group ( LDS Church) Completion Date: March, 2014

Bus Stop Enhancement Citywide Consist of Demolition of existing concrete site structures to accommodate new 40-FT X 20-FT bus pads compliant to ADA standards. The project involves 68 sites scattered around the El Paso, TX Region. This project required coordination between municipal and TXDOT traffic engineering departments. Cost: $272,582.25 Owner: Sun Metro - City of EL Paso Completion Date: April 2014

Mediwaste Facility - Design Build Tenant improvement of an existing Metal building, which currently houses medical waste treatment facility. The project consists reconfiguration of the rehabilitating of 17,510 SF of a warehouse facility, to accommodate a 1700-SF of new office space and upgrading and existing 240 volt electrical system to a 480 volt system. Upgrading of the existing sewer pipe to black cast iron pipe and a 1000 gal concrete cooling box, installation of 6 inch water line to service new office, equipment and a new fire suppression system. Construction of new concrete pits and foundation pads to house new compactor, boiler and autoclave unit. Construction Contract: $450,000. Completion Date: June 2014 Owner: Mediwaste Facility - Anthony Lich Design Build: Project Designed and constructed by Keystone

Carlson & Elliot Dr. Pump Station Construction of a 10’-6” x 13’-6” generator pad 14 thick, reinforced with a double foundation mat made of #6 rebar at 12 inches of center., including the construction of 20-ft rock-wall. Along with a construction of 50-ft wrought iron fence and gates, including the fabrication galvanized steel trash rack and other miscellaneous modification structural modifications to pump house to furnish and install a new access gate to service the new water pumps Owner: El Paso Water Utilities Category: Commercial Construction Engineer: M&M Structural Completion Date: September 2015

Crack seal Rd 237 - White Sands Crack Sealing of 5 milies of Road 237 to include the Re-Routing exiting carcks to allow sealant to penetrate, installation of thermoplastic highway stripping, Construction Contract: $ 124,000.00. Owner: White Sands Missile Range Category: Road Construction Completion Date: July 11, 2017

COMMERCIAL

Concrete Slab at Pole Barn, Presidio, TX Projected Completion: Nov, 2011 Owner: Big Bend State Park General Contractor: WestMix Contact: Robert Meredith, (432) 295-2666 Amount/Description: $17,100.00 / Construction of 5,500- sf concrete slab with 3000-psi concrete reinforced with #4 rebar and installation of 12-in PVC storm drain pipe and concrete inlet.

Carlson & Elliot Dr. Pump Station Construction of a 10’-6” x 13’-6” generator pad 14 thick, reinforced with a double foundation mat made of #6 rebar at 12 inches of center., including the construction of 20-ft rock-wall. Along with a construction of 50-ft wrought iron fence and gates, including the fabrication galvanized steel trash rack and other miscellaneous modification structural modifications to pump house to furnish and install a new access gate to service the new water pumps Owner: El Paso Water Utilities Category: Commercial Construction Engineer: M&M Structural Completion Date: September 2015

Baines & Morehead Apartments - Site Construction Keystone is acting as subcontractor to Pavilion construction; work consist of Misc. Site Improvement to Baines and Morehead Apartment. Include construction of new sidewalks, base course, asphalt pavement, parking lot sealing, traffic pavement markings, ADA ramps, Trash enclosures, installation of misc. equipment, brick mortar joint repair, and other Misc. items. Construction contract: $222,680.00 Category: Commercial Construction Completion Date: Under Construction Owner: EL Paso Housing Authority - RAD Project General Contractor: Pavilion Construction

Delta Divine Subdivision Development - Multi- Family New subdivision development, consisting of the construction of 395 linear feet rock wall, installation of 8 inch ductile iron sewer, 260 linear feet of new 8-inch sewer line and tap to an existing 12-inch active sewer line, installation of 8-inch water line, Construction of four manhole structures, including meter services to four subdivided lots. Construction of 360 LF roadway, 6-inch base course, a 2-inch-thick hot asphalt road, and concrete curbs, sidewalks. As part of the development, four residential units were constructed, each building slab was monolithically poor with the reinforced concrete foundation. Each concrete slab was pour with an approximately 80CY of 3000-PSI concrete. Owner: Project Vida Community Development Category: Multi-Residential development Completion Date: September 2017

SITEWORK

Concrete Slab at Pole Barn, Presidio, TX Projected Completion: Nov, 2011 Owner: Big Bend State Park General Contractor: WestMix Contact: Robert Meredith, (432) 295-2666 Amount/Description: $17,100.00 / Construction of 5,500- sf concrete slab with 3000-psi concrete reinforced with #4 rebar and installation of 12-in PVC storm drain pipe and concrete inlet.

11453 Lindenwood- New Residence - Design Build Construction of new 2700-SF Single Family Residence. Consisting of an open concept multifamily room, dining room, and Kitchen. Two guest bedrooms, master bedroom with all amenities of a walking closet, dressing room and bathroom, and office space, workout room and a double garage room. constructed over a turn- down slab on grade foundation on a wood frame, stucco structure and shingle roof. Owner: Fernandez Family Design Build: Project Designed and constructed by Keystone Completion Date: Dec 2015

Delta Divine Subdivision Development - Multi- Family New subdivision development, consisting of the construction of 395 linear feet rock wall, installation of 8 inch ductile iron sewer, 260 linear feet of new 8-inch sewer line and tap to an existing 12-inch active sewer line, installation of 8-inch water line, Construction of four manhole structures, including meter services to four subdivided lots. Construction of 360 LF roadway, 6-inch base course, a 2-inch-thick hot asphalt road, and concrete curbs, sidewalks. As part of the development, four residential units were constructed, each building slab was monolithically poor with the reinforced concrete foundation. Each concrete slab was pour with an approximately 80CY of 3000-PSI concrete. Owner: Project Vida Community Development Category: Multi-Residential development Completion Date: September 2017

RESIDENTIAL

Carlson & Elliot Dr. Pump Station Construction of a 10’-6” x 13’-6” generator pad 14 thick, reinforced with a double foundation mat made of #6 rebar at 12 inches of center., including the construction of 20-ft rock-wall. Along with a construction of 50-ft wrought iron fence and gates, including the fabrication galvanized steel trash rack and other miscellaneous modification structural modifications to pump house to furnish and install a new access gate to service the new water pumps Owner: El Paso Water Utilities Category: Commercial Construction Engineer: M&M Structural Completion Date: September 2015

Delta Divine Subdivision Development - Multi- Family New subdivision development, consisting of the construction of 395 linear feet rock wall, installation of 8 inch ductile iron sewer, 260 linear feet of new 8-inch sewer line and tap to an existing 12-inch active sewer line, installation of 8-inch water line, Construction of four manhole structures, including meter services to four subdivided lots. Construction of 360 LF roadway, 6-inch base course, a 2-inch-thick hot asphalt road, and concrete curbs, sidewalks. As part of the development, four residential units were constructed, each building slab was monolithically poor with the reinforced concrete foundation. Each concrete slab was pour with an approximately 80CY of 3000-PSI concrete. Owner: Project Vida Community Development Category: Multi-Residential development Completion Date: September 2017

Crack seal Rd 237 - White Sands Crack Sealing of 5 milies of Road 237 to include the Re- Routing exiting carcks to allow sealant to penetrate, installation of thermoplastic highway stripping, Construction Contract: $ 124,000.00. Owner: White Sands Missile Range Category: Road Construction Completion Date: July 11, 2017

COMMERCIAL

PROJECTS

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