Nogales District Complex Reverse Osmosis System Installation Specifications.pdf

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REVERSE OSMOSIS SYSTEM INSTALLATION

USDA FOREST SERVICE

CORONADO NATIONAL FOREST

NOGALES RANGER DISTRICT

March 2024

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SCHEDULE OF ITEMS

Item No. Item Description Est.

Qty Method of

Measurement Unit Unit Cost Total Cost

Base Bid Items:

1 Mobilization 1 LSQ LS

Laboratory Services Four samples

a. District Office Breakroom Sink

b. District Ofc Lobby Drinking Fountain

c. Ruby House Kitchen Sink

d. Warehouse Large Water Station

1 LSQ LS

Point of Use Device Under the Sink Device

a. District Office Breakroom Sink

b. Ruby House Kitchen Sink

1 LSQ LS

Point of Use Device – Drinking Fountain

a. District Office Lobby Fountain

b. District Office Employee Fountain

1 LSQ LS

Point of Use Device – Water Stations

a. Two Water Stations with permeate lines to Ice Machine & Drinking Fountain

1 LSQ LS

* LS = Lump Sum, LSQ = Lump Sum Quantity Total Base Bid:

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SPECIFICATIONS

NOGALES RANGER STATION

REVERSE OSMOSIS SYSTEM INSTALLATION

Coronado National Forest – Nogales Ranger District

GENERAL INFORMATION

NOGALES RANGER STATION – ADMINISTRATIVE SITE

1. Project Location: 303 Old Tucson Road, Nogales, AZ 85621

a. To reach the Nogales Ranger District Office: From Tucson, AZ, take I-19 S for approximately 55.5 miles to Nogales, AZ. Take exit 12 for Ruby Rd toward Nogales Ranger Station for about 0.2 miles. Then turn left on AZ-289E/E Ruby Rd for 0.1 mile, then turn right onto E Frontage Rd/I-19 Frontage Rd for 0.4 mile, then turn left onto Old Tucson Rd and the destination will be on the left.

b. Latitude: 31.425999, Longitude: - 110.963043

2. Owner: USDA Forest Service, Coronado National Forest

SCOPE OF WORK

The work is to provide all labor, materials, equipment, supervision, transportation, training, sampling, and testing necessary to provide and install NSF and/or WQA certified Reverse Osmosis (RO) systems by certified licensed plumbers for three (3) buildings at the Nogales Ranger Station. A recommended manufacturer providing the certified products meeting this requirement is Kinetico Water Company.

The proprietary Kinetico products shall be installed under supervision and inspection by manufacturer’s representative, if Kinetico is not the installer. The Kinetico representative shall be present throughout the installation, including START-UP, to ensure the various systems are properly operating.

The installation locations of these Reverse Osmosis (RO) systems will be coordinated with the COR to select the best locations described within this statement of work (SOW). The specific Reverse Osmosis systems described herein shall be installed according to manufacturer’s recommendations for proper operation and warranty requirements. All new installations shall include appropriate NSF tubing or pipe and appurtenances to extend the treated “permeate” water to existing appliances such as refrigerator, drinking fountains, and ice machine. Work includes selective demolition to existing walls, cabinetry, countertop, and sinks for complete, concealed, and secure installations with repairs to match existing finishes. The new tubing/piping shall be concealed as best as possible when extending the permeate water lines, except shut-off valves shall be accessible.

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All installations shall include necessary valves and unions to allow for maintenance. Install required blocking, hangers, trim, flashing, fittings, hose bib, sample taps, faucets, and any necessary supports. All new operable parts shall comply with ADA requirements including reach range and height. Drawings and photos of existing plumbing, fixtures, and appliances are included in the construction drawings.

After installation of the reverse osmosis systems, PFAS sampling and testing shall be conducted utilizing Arizona certified drinking water laboratory and qualified sampler to collect proper PFAS samples. Contractor shall include on the chain of custody under special instructions to email results to the COR directly from the laboratory. Hard copies of the results shall be provided to the COR.

The types of reverse osmosis (RO) systems to be installed consist of point-of-use (POU) devices:

o Under-the-sink o Drinking fountain o Water Stations

All the reverse osmosis systems shall deliver final permeate water providing reduced levels of the compounds of Per- and Polyfluoroalkyl Substances (PFAS) to comply with the proposed Environmental Protection Agency (EPA) Maximum Contaminant Levels (MCLs). EPA issued health advisories for PFAS and proposed new, legally, enforceable MCLs for six PFAS substances known to occur in drinking water. The proposed levels are shown in Table 1.

Table 1: Proposed MCLs for Six PFAS

COMPOUND PROPOSED MCL (enforceable levels) PFOA 4.0 parts per trillion (ppt) (also express as ng/L) PFOS 4.0 ppt

PFNA

1.0 (unitless) Hazard Index

PFHxS

PFBS

HFPO-DA (commonly referred to as GenX Chemicals)

BACKGROUND INFORMATION

Perfluorooctanoic acid (PFOA) and Perfluorooctane sulfonic acid (PFOS)

The existing Forest Service-Owned well source at the Nogales Ranger Station was tested and determined to contain high levels of PFAS. The detections of PFOA (8.6 ppt) and PFOS (53 ppt) compounds exceeded the U.S. EPA proposed interim health advisory levels of 4.0 ppt.

Based on the high levels detected, the Nogales Ranger Station Water System was immediately discontinued for drinking water consumption. The well is the primary source of water for this

CORONADO NF, NOGALES RD Page | 5 administrative site, which includes an office, warehouse, and one quarters unit (2-bedroom building).

WATER QUALITY TESTING

Testing shall be conducted utilizing certified laboratory and qualified sampler to collect proper PFAS samples from the following locations AFTER the reverse osmosis systems are completely installed. Approved EPA Methods 537.1, Rev 2.0 shall be used.

A total of (4) Four samples shall be collected at the following locations:

1. District Office – Breakroom sink

2. District Office – Lobby Drinking Fountain

3. Ruby House – Kitchen sink

4. Warehouse – Dispensing Unit from large water station.

The previous sampling and testing utilized Method 537.1.

A. 2020 & 2023 PFAS results are available upon request.

STAGING AND STORAGE AREAS

Areas for staging operations and storage of materials shall be approved by the COR. The Contractor must request in writing for approval from the COR to stage materials, tools, and equipment.

INSPECTION OF WORKSITE

The contractor acknowledges they have taken the necessary steps to ascertain the nature and location of work and have investigated and satisfied themselves as to the general and local conditions that can affect the work or its cost. Any failure of the contractor to take the actions described and acknowledged in this paragraph will not relieve the Contractor from the responsibility of estimating properly the difficulty and cost of successfully performing the work, or for proceeding to successfully perform the work without additional expenses to the government.

CONTRACT TIME

A. Base Bid: 30 Calendar Days B. Upon award and Notice To Proceed, the contractor should plan to begin work within 10 days.

WORK RESTRICTIONS

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A. Contractor’s Use of Premises: During construction, Contractor will have limited use of area indicated. Contractor’s use of premises is limited only by Owner’s right to perform work and as follows:

1. Forest Service will occupy premises during work. Work shall take place during business hours between 8 AM to 5 PM, Monday through Friday, other than holidays, unless otherwise agreed to in advance by COR. Clean up work areas and return to usable condition at the end of each work period.

2. Driveways, Walkways, and Entrances: Keep driveways, loading areas, and entrances serving premises clear and available to Forest Service’s employees, visitors, and emergency vehicles. Do not use these areas for parking or storage of materials.

3. Non-potable water is available. Contractor is responsible for providing potable water for their employees.

4. Electricity is available. Contractor is responsible to verify existing electrical receptacles and/or outlets are available and rated for appropriate equipment.

5. Sanitation facilities are available.

B. Nonsmoking Building: Smoking is not permitted within the building or within 25 feet of entrances, operable windows, or outdoor-air intakes.

C. All work shall be completed in accordance with the following project statement of work.

The work includes all labor, materials, supervision, tools, sampling, testing, and equipment necessary to perform all operations for the work specified:

1. Security: No security shall be provided by the government. The contractor shall take all precautions deemed necessary to secure the worksite, improvements, and equipment.

2. Protection of Work: The Contractor shall take precautions necessary to protect all work during the construction period.

3. Safety: The Contractor is responsible for safeguarding the public, Forest Service Employees, the Contractor’s employees, existing facilities, and Forest resources from contract operations. Signs, barricades, and other devices, as necessary, shall be placed and maintained during operations.

4. Site Feature Preservation: No process or materials shall be employed in such a manner that they will introduce additional hazards into each project site.

5. Follow all applicable County, State, and Federal Codes and Regulations.

WASTE MATERIAL TO BE HAULED TO A LANDFILL

A. All demolition materials, garbage, and other refuse generated shall be removed from the project site and legally disposed from Government property in an approved landfill.

B. The Contractor is responsible for all costs and permits associated with landfill disposal.

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C. The Government is not responsible for waste material upon its departure from the project site.

REVERSE OSMOSIS (RO) SYSTEMS

The RO systems shall conform to applicable requirements in NSF/ANSI 58 and specifically reduce the levels for PFOS and PFOA removal, including all the other compounds identified in Table 1. The Kinetico reverse osmosis units are listed in the Water Quality Association database:

a. https://info.nsf.org/Certified/DWTU/

b. https://wqa.org/find-products/#/

The RO systems shall accommodate for low to medium volume.

Point-of-use reverse osmosis system – A plumbed-in or faucet mounted RO system used to treat the drinking and/or cooking water at a single tap or multiple taps, but not used to treat water used for washing and flushing or other non-consumption purposes at a building or facility.

MANUFACTURER

Reverse Osmosis System – Kinetico Water Systems

• Contractor shall install NSF tubing/piping throughout all connections from tee of untreated plumbing supply line through reverse osmosis system to the finished appliance or faucet dispensing connection.

• Contractor shall install all the proprietary components from Kinetico Water System, including the filter cartridges and membranes required for PFAS reduction/removal.

• All plumbing work shall follow all local and applicable plumbing codes.

• For joints between dissimilar materials, use flanges, couplings, unions, or other transition fittings manufactured specifically for the types of pipe being joined and having a minimum pressure rating, or pressure class (as applicable) equal to or greater than the lower pressure rating or class of pipes being joined. Plastic threaded pipe/fittings shall not be joined with metal threaded pipe/fittings.

A. Under the Sink Units

1. Kinetico K5 with VOC guard and patented Kinetico QuickFlo for higher psi and permeate and recovery rate Drinking Water Station or recommended reverse osmosis system by Kinetico Technical Representative. This system is certified to remove chromium 6, arsenic and all 45 PFOA’s and PFAS. The system includes custom Kinetico K5 with VOC guard with standard stainless steel chrome faucet to be installed at the kitchen sink.

• District Office – Breakroom Kitchen Sink with faucet, including extended permeate or product water line to existing refrigerator water/ice dispenser.

https://info.nsf.org/Certified/DWTU/ https://wqa.org/find-products/#/

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• Ruby House – Kitchen Sink with faucet

B. Drinking Fountain Units for Office

1. Kinetico K5 with VOC guard & patented Kinetico Quickflo for higher psi & permeate and recovery rate & delivery pump.

• District Office – Lobby Drinking Water Fountain

• District Office – Employee Drinking Water Fountain

C. Water Stations for Warehouse

1. Kinetico PRO Model NSC Life Support /Cooking/Drinking Water Station. This model includes custom-engineered pre-filtration, post-filtration, custom storage, re-pressurization and delivery system.

• Warehouse shall receive two (2) PRO NSC Model drinking water stations.

This will provide the larger volume of permeate water for the higher seasonal demand during fire season.

Each PRO NSC Model drinking water station includes pre-filter, post-filter, with one (1) 80-gallon tank for re-pressurization, to be installed with custom storage and delivery system to four (4) dispensing faucets or valves (filling ports).

Four (4) dispensing faucets or valves (filling ports) shall be installed for each water station. Total of eight (8) filling ports.

All dispensing faucets or valves (filling ports) shall be installed at a minimum height of at least 36-inches above floor level with an accessible operable lever. Filling ports shall be equally spaced 24-inches apart horizontally.

Contractor shall provide design of filling port station to COR for review and approval prior to construction. Design shall show supports, valves, operable parts, dimensions, and layout.

Submit technical information on the operable parts to COR. All operable parts shall meet accessible requirements. Height and reach of the dispensing units must comply with accessible requirements.

Contractor shall supply the proper cartridges, filters, and or membranes necessary to obtain the required reduction or elimination of PFAS levels.

• Contractor shall extend finish permeate water line to the existing warehouse drinking fountain in the next bay on outside of restroom wall. This location is

AS SHOWN ON THE DRAWING.

• Contractor shall extend permeate water line to existing ice machine. Existing ice machine is a “Batch Type” appliance.

o The ice machine is a MANITOWOC.

CORONADO NF, NOGALES RD Page | 9 o This model uses 20 gallons of water to produce 100-lbs of ice.

o Assume high use during the summer to use 60 gallons of water to produce 300-lbs of ice.

D. Kinetico Supervision and Inspection

1. Contractor shall provide copy of qualified individual(s)’Arizona Plumbing License

(Commercial) to the COR, prior to commencement of work.

2. Contractor shall coordinate and acquire Kinetico’s technical representative for onsite supervision and inspection during installation of each reverse osmosis system. This is required if contractor is not a Kinetico certified installer. Any costs associated with the supervision and inspection services are incidental to other items in the contract.

3. Kinetico representative shall provide training to Forest Service employees to replace the filters, cartridges, and membranes for maintenance purposes.

E. Media – Filters Cartridges and Membranes

1. Kinetico Filters and Membranes shall be provided and installed per manufacturer’s recommendations.

2. Contractor shall supply the FS with ONE complete set of the filters/membranes for the following systems:

A. Under the sink system

B. Drinking Fountain system C. Large Water Station

3. The payment for the extra supply shall be considered incidental to other items in the contract.

CONTRACTOR REPRESENTATIVE.

Contractor shall provide a contract representative for the performance of the work. The name of this person and an alternate(s) who shall act for the contractor when the contractor is absent shall be designated in writing to the contracting officer. The contractor representative or alternate shall have full authority to act for the contractor on all contract matters relating to daily operation of this contract.

WORK SCHEDULES.

Contractor shall provide a schedule prior to commencement of work. This will ensure that work is planned to be completed within the contract time allowed and within normal Forest Service business operating hours.

EMPLOYEE/PUBLIC SAFETY

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Contractor shall provide and maintain all necessary temporary signs/notices to inform employees of any unsafe or non-working areas in the building. All necessary precautions shall be taken for the protection of the work and safety of the employees and public.

Tools, equipment, materials, or other obstructions caused by operations shall be removed prior to the end of each day’s operations and are not to remain overnight, weekends, and holidays.

APPLICABLE CODES AND STANDARDS

All work shall conform to the latest editions of the International Building Code, American Water Works Association, National Electrical Code, National Sanitation Foundation, Water Quality Association and all applicable local, county, state, federal regulations.

PROTECTION OF PROPERTY AND UTILITIES

The existing water supply to the site is currently available, but the directed use has been limited to toilet, hand washing, and any non-potable uses. All the buildings have water available at the site, but not to be used for consumption. Contractor is responsible for ensuring any utilities including water are properly shut off before work is initiated. All temporary utility disruptions shall be coordinated with the COR to provide notice to employees. Contractor shall provide an expected timeframe the water or any other utilities will be temporarily shut off.

Any damaged or destroyed property shall be promptly repaired or replaced at the contractor’s expense. When operating adjacent to utility lines, the contractor shall make all necessary arrangements to prevent damage and shall assume all responsibilities should any damage occur.

Work site is near electrical, HVAC, lighting (ceiling/wall), walls (interior/exterior), countertops (interior), and cabinetry with various types of finishes.

A plumbing plan of the office building and warehouse can be found in the construction drawings.

Photos of the current fixtures can be found in the construction drawings.

WARRANTY

I. Pre/Post Filters – 4 years from date of installation.

II. Membrane Systems – One year warranty from date of installation.

III. Other Warranted Products – include but not limited to storage tanks, valves, pumps, filter housings and electrical controls. These shall be covered for a period of one year from date of purchase.

STATEMENT OF WORK