Atch_1_SOW_Maintain_SAJU_Restrooms.docx

Maintain SAJU Restrooms

Scope of Work (SOW)

Table of Contents

1.0 Project Description / Summary

2.0 Objectives

3.0 Background

4.0 Specific Work / Tasks

5.0 Optional Work / Tasks

6.0 Government Furnished Equipment / Materials / Other

7.0 Special Conditions / Requirements

8.0 Place of Performance

9.0 Performance Period / Schedule Requirements

Scope of Work

Park / Park Unit:

San Antonio Missions National Historical Park

1. PROJECT DESCRIPTION / SUMMARY:

The Project aims to repair and maintain extending the lifespan of the San Juan Mission Restroom, requires targeted maintenance to address its deteriorating electrical and plumbing components to meet facility functionality. The restroom, approximately 400 square feet covering both men’s and women’s sections. This scope of work outlines the tasks to restore the facility components.

2. OBJECTIVES:

Restore the electrical and plumbing components to ensure safety, efficiency, and compliance with modern standards. Replace outdated fixtures and equipment with energy-efficient and accessible alternatives. Ensure accessibility and functionality through ADA-compliant upgrades. Preserve the historical integrity of the nationally significant structure while implementing modern improvements. Ensure all work adheres to applicable codes, and standards. Ensure the historic fabric of the building isn’t modified or disturbed without the Park’s approval and any disturbance shall be kept to a minimum

3. BACKGROUND:

Listed as a nationally significant structure (LCS #22996). Situated at the east end of the south wall, this building is reconstructed of random rubble masonry with Portland cement mortar and measures 19 feet by 22 feet. Brick capping finished the upper edges of the walls. The east-facing facade is symmetrical. Doors and windows are wood frame. Used as a restroom at present, the building was reconstructed from the ruins of a mid-nineteenth century house in the 1950s. Plumbing and fixtures were added during a 1968 restoration. Wastewater septic system was installed in 2008. Underwent replacement of plumbing fixtures and partitions and other minor improvements within the existing building envelope in 2018.

4. SPECIFIC WORK / TASKS:

4.1. Electrical component replacements

4.1.1. Demolition and Replacement of Heater/Exhaust/Light Units:

4.1.1.1. Remove two (2) existing motorized heater exhaust fans (light/exhaust/heater combo) located above each toilet in the men’s and women’s sections.

4.1.1.2. Install two (2) new light/exhaust/heater combination units with box covers. Ensure a seamless fit and ensure the historic fabric of the building isn’t modified or disturbed without the Park’s approval and any disturbance shall be kept to a minimum. Dedicated 20-amp GFCI-protected circuits for heaters (NEC 422.51).

4.1.1.3. Ensure switches for ventilation control to accessible, user-friendly locations compliant with NEC 404.4 (e.g., away from water sources, 15–48 inches above the floor per ADA standards). Use GFCI-protected or low-voltage switches in restrooms to prevent shock hazards. Ensure switches are compatible with new fixtures and fans (e.g., correct voltage and amperage ratings).

4.1.1.4. Light/Exhaust/Heater Units: Exhaust Capacity: Minimum 110 CFM, low noise (≤1.5 sones). Heater: 1500W ceramic heating element. Lighting: Integrated LED module, minimum 800 lumens, 3000K warm white. White or brushed nickel to match restroom aesthetic. Built-in damper to prevent backdraft, UL-listed for wet locations.

4.1.1.5. Remove and cap existing heater switches and replace with digital programmable thermostats for heater control. Thermostat Specifications: 120V, 15A, backlit display, temperature range 40°F–95°F, compatible with ceramic heaters. Install with lockable plastic cover.

4.1.2. Electrical Panel Replacement:

4.1.2.1. Demo and remove the existing electrical panel in women’s restroom.

4.1.2.2. Install a new electrical panel compliant with current electrical codes, ensuring the panel is labeled.

4.1.2.3. Existing conduit is to be utilized. Provide new wiring pulled throughout the facility. Surface mounted conduit is not acceptable, however for some of the existing conduit can be left exposed.

4.1.2.4. Exterior NEMA 3R-rated weatherproof enclosure free-standing electrical rack, not attached to the existing stone structure/wall Rack mounted not attached to stone structure shall be minimal visual impact. Bond new panel and verify grounding electrode resistance ≤25 ohms (NEC 250.56). Ensure rack-mounted enclosure is vandal-resistant (e.g., tamper-proof screws) and on a stable, accessible surface.

4.1.2.5. Minimal impact on the historic stone facade, per NPS and Historic Preservation guidelines. Secure, lockable access to prevent tampering.

4.1.2.6. Ensure conduit and exposed metal is painted to match the existing aesthetic of the restroom to maintain historical integrity and a neutral-colored enclosure to minimize visual impact. Comply with the Secretary of the Interior’s Standards for Historic Properties. Use discreet conduit paths (existing wall penetration) .

4.1.2.7. Run new circuits to all new and existing electrical devices and fixtures. Use GFCI-protected or low-voltage switches in restrooms to prevent shock hazards.

4.1.3. Lighting Replacement:

4.1.3.1. Demo existing four (4) light fixtures in both restroom sections.

4.1.3.2. Remove and relocate light switches.

4.1.3.3. Install two (4) new LED Lighting strip-style light fixtures suspended from ceiling to allow light to reach beyond wood beams. Linear LED strip, 4-foot length. 3000 lumens per fixture, neutral white or warm white. Confirm the lighting’s suitability, with the ability to slightly lower lumen fixtures if needed. Ensure fixtures are rated for damp/wet locations due to the restroom environment (NEC 410). Use GFCI-protected circuits for all lighting in restrooms (NEC 210.8(B)).

4.1.3.4. Install motion sensor switches for lighting: Passive infrared (PIR) sensor, adjustable time delay (30 seconds to 30 minutes), 120V, 800W max load, manual override option, UL-listed for damp locations, IP44 rating. Ensure motion sensors cover both men’s and women’s sections effectively.

4.1.4. Installation of Fans:

4.1.4.1. Add two (2) fixed directional restroom fans in each section: Washdown Fan, 1 Speed, approximately 1000 CFM. Single Phase. Material: 304 electro-polished stainless steel. For air circulation air in humid areas, suitable for high-moisture environments. Wire fans to operate in conjunction with switch. Fans must be on GFCI-protected circuits (NEC 210.8(B)). Verify that the existing panel’s circuit breakers can handle the load of new fans (per NEC 220).

4.1.5. 4.1.5 Emergency Lighting Installation:

4.1.5.1. Install two LED emergency lighting fixtures (one per section), battery-backed, minimum 1 foot-candle illumination, 90-minute runtime, UL-listed for damp locations, vandal-resistant, matching historic aesthetic (IBC 1008.2, NEC 700.12).

4.2. Cabinetry and Storage Modifications

4.2.1. Demolition of Existing Cabinets: Remove two (2) existing wooden cabinets with the following dimensions: Cabinet 1: 1'D x 1.5'W x 2'H Cabinet 2: 1.5'D x 1.5'W x 5'H

4.2.2. Installation of New Wood Storage Solutions:

4.2.2.1. Replace the smaller cabinet to support a water fountain cooler in the designated area. Western red cedar. Black painted metal hardware.

4.2.2.2. Install a new janitor/garden cabinet, outdoor rated, in the women’s restroom: Material: Western red cedar. Dimensions: Approximately 24"D x 54"W x 72"H with ability to fit mop bucket. Hardware: Black painted metal hardware. Ensure the cabinet design provides accessible space in compliance with accessibility standards. See example picture.

4.3. Plumbing and Fixture Replacements

4.3.1. Sink and Faucet Replacement:

4.3.1.1. Existing sinks are pulling from the wall because of heavy fixtures. Demo and remove existing sinks in both men’s and women’s sections.

4.3.1.2. Install new ADA-accessible sinks. Consider any reinforcement of the fixture mounts or sink that is less heavy. Park recommends stainless steel sink type wall-mounted. Dimensions: Approximately 22"W x 18"D x 5"H. ADA-compliant (minimum 27" knee clearance, 34" max rim height), integral overflow. Rating: ASME A112.19.2 compliant.

4.3.1.3. Install touchless sink faucets for improved hygiene and accessibility. Sloan Valve EBV-129-A or equivalent. Type: Infrared sensor-activated, battery-powered (6V lithium, 2-year minimum battery life). Flow Rate: 0.5 GPM. There is no hot water only cold water. Ensure backflow prevention for faucets (IPC 608.1).

4.3.1.4. Repair the plumbing (supply-side and wastewater) clean outs, since we’ll have the building shut down, to ensure proper maintenance operations of the facility.

4.3.2. Mirror Replacement: Remove two (2) existing mirrors above the sinks. Install two (2) new mirrors Frameless, 24"W x 36"H.

4.4. Interior Repairs and Preservation

4.4.1. Repair restroom interior wood partition walls ensure accessibility compliance and repaint to match existing finishes: Inspect and repair any damaged interior partition walls, addressing cracks, holes, or deterioration using materials compatible with the existing structure. Repaint repaired walls with low-VOC paint, color-matched to the existing interior finish, ensuring a seamless appearance that aligns with the historical aesthetic of the SAJU Restroom. Mildew-resistant, compliant with NPS preservation standards.

4.4.2. Provide repairs, cleaning of the tile and grout.

4.4.3. Replace and repair ceiling material removed to support electrical installation: Remove ceiling material only as necessary for electrical upgrades (e.g., wiring, fixture installation). Replace removed ceiling material with same materials to match existing ceiling in texture, color, and composition (e.g., plaster or acoustic tile, as applicable). Ensure repairs maintain structural integrity and historical character, adhering to NPS preservation guidelines for the SAJU Restroom.

4.5. Temporary Facilities

4.5.1. Place toilet trailers for the duration of the work to ensure continued access to restroom facilities for visitors and staff. Size shall be small and be placed in the parking lot. Type: ADA-compliant portable toilets, one per gender (men’s and women’s). Include handwashing station, hand sanitizer dispenser. Placement: Positioned in a nearby accessible location, approved by the National Park Service (NPS), to minimize disruption and ensure compliance with site preservation guidelines. Maintenance: Regular servicing (minimum weekly) to maintain hygiene and functionality throughout the project duration.

5. OPTIONAL WORK / TASKS:

5.1.1. N/A

6. GOVERNMENT FURNISHED EQUIPMENT / MATERIALS / OTHER:

6.1.1. N/A

7. SPECIAL CONDITIONS / REQUIREMENTS:

7.1. Compliance:

7.1.1. Please comply with the SAAN Park Superintendents compendium found here: https://www.nps.gov/saan/learn/management/superintendent-s-compendium.htm

7.1.2. All work must comply with local, state, and federal building codes, including ADA accessibility standards and National Park Service (NPS) preservation guidelines for historically significant structures.

7.1.3. Electrical work must adhere to the National Electrical Code (NEC 2023).

7.1.4. Plumbing work must comply with the International Plumbing Code (IPC 2021).

7.1.5. Preservation: Ensure all modifications respect the historical significance of the SAJU Restroom, minimizing impact on original architectural features. Use materials and finishes that blend with the existing aesthetic (e.g., painted conduit to match surroundings).

7.1.6. Safety: Implement proper safety protocols during demolition and installation to protect workers and visitors. Ensure all electrical components are installed by licensed electricians.

7.1.7. Quality Control: Conduct post-installation inspections to verify functionality of all systems (electrical, lighting, ventilation, and plumbing). Provide warranties for new equipment and installations as per manufacturer specifications.

7.1.8. Submittals

7.1.8.1. Electrical system, including new panel, LED lighting, ventilation fans, and heater/exhaust units.

7.1.8.2. ADA-compliant sinks, touchless faucets, and mirrors.

7.1.8.3. New western red cedar janitor cabinet and water fountain shelf.

7.1.8.4. Documentation of all work performed, including red lined drawings, and manufacturer warranties.

8. PLACE OF PERFORMANCE:

8.1. San Antonio Missions National Historical Park

8.2. San Juan Mission Restroom Facility

8.3. San Antonio, TX

9. PERFORMANCE PERIOD / SCHEDULE REQUIREMENTS:

9.1. Period of performance: 60 calendar days after notice to proceed, contingent on material availability and weather conditions.

9.2. Submit detailed schedule upon contractor selection, including milestones for demolition, installation, and final inspections.

9.3. Scheduling: Coordinate work to minimize disruption to restroom availability, considering the facility’s public use.

10. POINT OF CONTACT:

Nicholas Fleck Project Manager San Antonio Missions National Historical Park 2202 Roosevelt Ave San Antonio, TX 78210

(210) 500-8034 nicholas_fleck@nps.gov image1.png