21-13R CANDLESTICK BLOWER-FLARE RFP FINAL 12-17 11.pdf

RFP 21-13R

REQUEST FOR PROPOSALS (RFP)

REQUEST FOR PROPOSAL NUMBER: #21-13R

RFP TITLE: CANDLESTICK BLOWER/FLARE SKID SYSTEM

PRE-PROPOSAL VIRTUAL MEETING January 5, 2021 @ 9:00 a.m. M.S.T. A link to a Microsoft Team (NON-MANDATORY): meeting will be posted on Bidnet Direct’s website (details below) by noon, as the first addendum by January 4, 2021.

RESPONDER’S PROPOSAL DEADLINE: January 26, 2021 @ 3:00 p.m. M.S.T. No late proposals accepted.

I. PROJECT DESCRIPTION AND CONTRACT TERM: South Central Solid Waste Authority (SCSWA) is seeking proposals from qualified firms interested to contract with SCSWA to provide and deliver a manufactured blower/flare skid system meeting the specifications herein. This is a one-time project awarded to one firm, referred to as the Contractor.

II. SOLICITATION ACCESS AND NOTEWORTHY INFORMATION: This solicitation is only accessible and accepts response submittals through the New Mexico Purchasing Group’s website. SCSWA is a member of BidNet Direct’s New Mexico Purchasing Group, the website offers its vendors instant access to requests for information, proposals, bids, quotes, addenda, response submittal and award information. To access this solicitation, please Register online at http://www.NewMexicoBidSystem.com A cost free search registration option or an annual standard registration with a fee is available. Please access the website or call 800-835- 4603 for more information. As a member, you are granted access to future solicitation opportunities by SCSWA and other participating government entities.

III. PROHIBITED CONTACT: To ensure information is consistent to all Responders for this solicitation, any direct or indirect contact with SCSWA board members or SCSWA staff, other than SCSWA Purchasing staff is strictly prohibited until the contract is awarded. Upon such finding, the proposal will be rejected and deemed non-compliant, and the proposal will not be considered for award. EXCEPTIONS: Communications during any pre-proposal meeting or reference conducted by SCSWA, any related interviews initiated by SCSWA or any related negotiations initiated by SCSWA Purchasing staff, related to this solicitation.

IV. CONTRACTOR EXTENSION OF CONTRACT TO OTHER ENTITIES: In accordance with ARTICLE VIII. - EXISTING CONTRACTS Sec. 24-316 of the (SCSWA adopted) Las Cruces Procurement Code and with NMSA Procurement Code, Section 13-1-12, SCSWA authorizes the Contractor to extend the same terms and conditions to other governmental entities and are subject to the procurement laws and regulations of those entities. SCSWA must not be involved, nor have any liability relating to such extensions.

http://www.newmexicobidsystem.com/

RFP DETAILS

A. INTRODUCTION: SCSWA currently manages recycling and solid waste services for all of Doña Ana County, White Sands Missile Range, and other communities within the defined service area of South-Central New Mexico. SCSWA’S operations include the following:

1. Corralitos Regional Landfill

2. Residential and commercial solid waste collections in Sunland Park, New Mexico, and White Sands Missile Range, New Mexico

3. Collections and waste transfer activities throughout SCSWA service area (Doña Ana County, Sierra County and Otero County)

4. Recycling services include providing biweekly curbside collections to approximately 35,000 residential households in and around the City of Las Cruces, New Mexico

5. SCSWA’S customer base consists of approximately 10 percent of the State’s projected estimated 2.35 million population

6. SCSWA operates one main transfer station in Las Cruces and nine (9) community collection centers throughout Doña Ana County.

B. BACKGROUND: SCSWA was formally established in December of 1994 through the adoption of a Joint Powers agreement between the City of Las Cruces and Doña Ana County. SCSWA is comprised of an eight (8) member board which consists of three (3) voting members appointed by the Las Cruces City Council, three (3) voting members appointed by the Doña Ana County Board of Commissioners, two (2) ex-officio members, the City Manager and the County Manager, or their designees.

With a total of approximately 80 employees, SCSWA provides recycling and solid waste disposal services to one of the state’s fastest growing areas. With the rapid growth of the area, SCSWA is constantly expanding to provide additional services, build additional facilities or planning to expand into new service locations. SCSWA strives to provide the highest service levels for its residents while redefining the meaning of solid waste management and continuously developing progressive programs and policies to meet the global demand for sustainability while preserving traditional values and protecting the environment.

The Corralitos landfill serves as a regional facility accepting waste from the City of Las Cruces, Doña Ana County, City of Truth or Consequences, and White Sands Missile Range. The Corralitos landfill, which is approximately 640 acres, was permitted for waste disposal in 1995. The 1,000 ton per day facility has an accepted waste composition of 75.7 percent municipal solid waste, 21.6 percent construction and demolition, and 2.7 percent biosolids.

Prior to 2018, mandatory Tier II testing demonstrated that the landfill followed the U.S. Environmental Protection Agency (EPA) regulations for surface emissions, with recorded surface emissions of less than 500 parts per million.

In the 2019 SCSWA Corralitos Landfill Tier II Report, presented to the New Mexico Environmental Department Air Quality Bureau, it was demonstrated that the landfill was generating surface emissions greater than 500 parts per million. In accordance with EPA Title V requirements, the landfill gas collection and control system (GCCS) must be operational by October 7, 2021.

Landfill Gas (LFG) will be collected and combusted or treated through flaring. Given the known existing waste inputs and the nature of future expected waste at the site, a candlestick flare unit was sized in accordance with the predicted LFG generation rates. The LandTec GEM 5000 portable gas analyzer indicates that an initial flaring capacity of 340 cfm will be required upon system startup in 2021.

C. GENERAL PROPOSAL CONDITIONS

The proposal, at a minimum, must describe and contain details of the approach and methodology for the items and in the sequence listed for the Candlestick (Open) Flare System, Handling System, and Motor Control System (MCC), including the MAJOR TASKS. Cost is part of this RFP criteria and is to be the last section of the submittal following technical and the approach and methodology.

Pre-Approved and Proposed Alternates - Upon completion of all reviews, an addendum will be issued with a list of newly approved alternates. To be considered, a list of proposed alternates must be sent as an attachment via e-mail, no later than one (1) week after the scheduled pre-proposal meeting to the SCSWA Purchasing Manager at tdelferraro@scswa.net

References of brand name, manufacturer name or proprietary products listed in the specifications of this solicitation are pre-approved by the SCSWA appointed Engineer and are used as an example of an item established with the standards of utility and quality and not meant to limit competition.

Items or names in the specifications that precedes the phrase “SCSWA appointed Engineer approved alternates” are those that qualify for a proposed alternate to be submitted for review. The list will provide the specified item and the name of proposed alternate(s), followed by the detailed specifications and standards of utility and quality, if applicable. The alternate list will be reviewed by the SCSWA appointed Engineer to determine if the alternate meets or exceeds the minimum specifications and/or standards of the utility and quality and, if so, will be recommended as an approved alternate.

Alternate Manufacturers: To consider systems of alternate manufacturers as an approved alternate, other than those named below in this section, the alternate must be demonstrated in writing that the proposed substitution is equal to specified item in quality, dependability, durability, strength, design, performance (of this specification) substantial conformance, operation efficiency, maintenance, serviceability, energy requirements, warranty, total cost effectiveness and other pertinent criteria.

All determinations made approving or denying proposed alternates by the SCSWA appointed Engineer will be accepted as final.

PRE-APPROVED MANUFACTURER LIST

Perennial Energy, LLC John Zink Hamworthy Combustion 1375 CR 8690 11920 East Apache Blvd West Plains, MO 65775 Tulsa, OK 74116 Telephone: (417) 256-2002 Telephone: (918) 234-1800 Website: http://www.perennialenergy.com Website: www.johnzinkhamworthy.com

D. MAJOR TASKS- SCOPE AND SPECIFICATIONS

1. Perform equipment and system/subsystem testing

a. Perform initial system start-up

b. Demonstrate compliance with performance requirements as specified

c. Provide operation start-up and training for designated personnel

d. Prepare and deliver three copies of submittals and operation and maintenance manuals prior to startup and training mailto:tdelferraro@scswa.net http://www.perennialenergy.com/ http://www.johnzinkhamworthy.com/

e. Warranty

2. Manufacturer Quality Assurance and Experience: Qualifications of CONTRACTOR and products used in the following specification for this project must be produced by a CONTRACTOR with a minimum of five (5) years of experience of regularly engaged in the manufacture of landfill gas handling, processing, and combustion systems and with a history of successful production acceptable to the SCSWA appointed Engineer.

3. Work Included: Provide the unitized, modular, candlestick flare station including all components necessary for a complete and operational system. The flare station must be sized to extract, remove free moisture/particulate matter, remove the condensate, and thermally destroy (combust) a maximum of 700 standard cubic feet per minute (SCFM) of landfill gas (based on gas component percent ranges noted in the specifications). The combination of these sub-systems must include, but not be limited to, the following components:

a. CANDLESTICK FLARE SYSTEM

i. Automatic actuated safety shutdown valve

ii. Flame arrester

iii. Burner Unit

iv. Flare Stack

v. Interconnecting piping and isolation valves

vi. Internal electrical wiring

vii. Instrumentation and control devices

viii. Junction and terminal boxes as required

ix. Pilot and ignition system

b. GAS HANDLING SYSTEM

i. Landfill Gas blower

ii. Moisture and particulate Knockout system

iii. Process valves

iv. Process piping

v. System structural skid

c. CANDLESTICK FLARE STATION MOTOR CONTROL SYSTEM

i. Enclosures / Cabinets / Junction boxes

ii. Control and annunciation devices

iii. Interconnecting conduit and wiring

iv. Programmable logic controller (PLC) supervisory control system

v. Ethernet switch for remote connection capabilities

vi. All required electrical controls, motor controls, annunciation systems, alarm systems, and process logic systems.

vii. Canopy for control panel and cabinets complete with lighting

E. PERFORMANCE

1. Operating conditions: The landfill gas candlestick flare station must be capable of operating under the following performance requirements and operating ranges:

a. Gas flow rates: The flare system must be capable of operating at a landfill gas flow rate and a landfill gas net heat flow rate of 10% maximum load rating through 100% maximum load rating (10:1 Turndown ratio) described earlier in this section. The emission and destruction/reduction efficiencies and Nitrous oxide (NOx) and carbon monoxide (CO) levels must remain in compliance with the specified emission limits set herein without the use of supplemental fuel.

b. Gas Supply Pressure: The flare system must require a maximum of 15 inch water column (W.C.) landfill gas pressure at the inlet of the flame arrester.

c. Exit Velocity: The maximum exit velocity must in strict accordance with EPA 40 CFR Chapter 1 Section 60.18. The exit velocity is determined by dividing the SCFM by the unobstructed cross-sectional area of the flare tip.

d. NOx emissions: Less than 0.68 lbs./one million British thermal unit (MMBtu), reference EPA AP 42.

e. Carbon monoxide emissions: Less than 0.31 lbs./MMBtu.

f. Destruction efficiency: The flare must be capable of achieving a minimum destruction efficiency of >98% of total non-methane organic compounds (NMOCs).

2. Landfill Gas Composition: In the absence of actual qualitative gas data, the composition of the landfill gas for this project must assumed to be as follows:

CONSTITUENTS: % BY VOLUME

a. Methane 25 to 60

b. Carbon Dioxide 25 to 50

c. Oxygen 0 to 3

d. Nitrogen 5 to 25

e. Trace Components (NMOC, H2S, VOC) 1

For basis of design, assume 80 °F landfill gas temperature 100% saturated with water vapor. Design site elevation is 4,400 feet. above mean sea level (AMSL)

3. Shop Drawings: Before any of the materials of this section are delivered to the jobsite, the

CONTRACTOR must submit complete shop drawings for the SCSWA appointed Engineer’s approval.

Shop drawings must show all details of:

a. Equipment dimensions component parts and list of materials.

b. Complete package weight and equipment loads

c. Installation and mounting details. Electrical wiring diagram, process control logic and details.

F. ADDITIONAL DOCUMENTS REQUIRED WITH THE SUBMITTED SOLICITATION RESPONSE:

1. Materials List: Submit three (3) copies (aside from the proposal submittal copies) of a complete list of all materials and equipment proposed to be furnished and installed under this portion of the work:

tag number, CONTRACTOR name, catalog number, and catalog cut for each item, where applicable.

2. Warranties: Submitted as specified in accordance with these specifications.

3. Special Arrangement for Proposed Equipment: If proposed equipment requires an arrangement differing from that indicated on the drawings and as specified, prepare, and submit for review detailed structural, mechanical, electrical, and process/instrumentation drawings and equipment lists, materials of construction and operating instructions, showing all necessary changes and all special features of proposed equipment.

G. PRODUCT HANDLING

1. Protection: The CONTRACTOR must use all means necessary to protect the condition and integrity of the equipment provided under this section during shipment.

2. Deliver materials in CONTRACTOR’S original packaging with all tags and labels intact and legible.

3. Store and handle material in such a manner as to avoid damage; store at site under cover if required to meet the conditions of this section.

H. LANDFILL GAS FLARE SYSTEM

1. The candlestick landfill gas flare system must be a unitized, modular system including all components for a complete and operational system.

2. The landfill gas flare system must be pre-piped and pre-wired to the extent possible, requiring minimal field assembly.

3. Connections (LFG inlet, condensate outlet, conduits) must be to skid edge, unless otherwise approved by the SCSWA appointed Engineer

4. The landfill gas flare system must include, but not be limited to, the following components which must meet as a minimum the listed specifications:

a. Main Gas Valve: pneumatically (nitrogen) operated butterfly valve equipped with a stainless-steel disk and Viton seat. The operator must be provided as a spring fail close device and must close when directed by the logic in less than 2 seconds. The CONTRACTOR must provide the regulator train, including regulator and pressure gauge and mounting facilities/racks for CONTRACTOR provided nitrogen tanks (two 100-pound bottles).

b. Flame Arrester: flame arrester must be installed at the inlet to the flare. The pressure drop it imposes on the system is a maximum of 3 inches W.C. The flame arrester is constructed of cast aluminum housing with aluminum flame element. Flame arrester must be manufactured by Groth or SCSWA appointed Engineer approved alternate. The flame arrester must be provided with pressure monitoring such that both flare back pressure and flare + flame arrester back pressure can be monitored.

c. Flare Mast: The flare mast must be constructed of ASTM A53 piping, and must be a minimum 12 inches IPS in diameter by a length sufficient to provide for an overall flare height of a minimum of 36 ft. Sections of the flare mast must be attached via continuous welds conforming to American Welding Society (AWS) D1.1 standard. The flare mast must have the following properties and accessories:

i. The mast must be attached to a heavy duty, carbon steel, 4-legged “cross” type mounting base. The design must accommodate compliance with Uniform Building Code (UBC) 110 mph and seismic Zone 4 criteria when attached to a suitably designed equipment pad via either pre-cast anchoring techniques or epoxy embedded anchoring techniques.

ii. The flare mast must include a valved drain installed at or near the base of the mast assembly to drain any condensate or rainwater accumulation.

iii. The flare mast assembly must include provision for mounting local junction boxes, ignition transformer box, and propane pilot gas train components.

iv. The flare mast must include Unistrut or SCSWA appointed Engineer approved alternate mounting accommodation for the installation of conduit and piping as is required to service the upper levels of the flare assembly.

v. The flare mast assembly must include a 10 inch iron pipe size (IPS), American National Standards Institute (ANSI) 125/150# flanged inlet nozzle to which the flame arrester assembly may be attached.

d. Burner: The burner unit must have the following properties and accessories:

e. Assembly: The candlestick flare burner assembly must include a minimum of 5 feet of 304L stainless steel piping. The free net nozzle area must be such that maximum velocities must exist at full specified loading rates, and as such must be compliant with 40 CFR, §60.18 design requirements. The piping must have attached a minimum of three continuously welded stainless-steel attachment supports for the stainless-steel shroud.

f. Burner Assembly: must include adjustable landfill gas nozzle spirolator(s), and adjustable air inlet dampers at the base of the shroud assembly. Operator adjustment for both the gas nozzle and the air dampers must be accessible to an operator while standing on the equipment pad.

g. Flare Shroud Assembly: The flare shroud assembly must be manufactured from 304L stainless steel. A minimum of 1 inch of ceramic fiber insulation blanket must be installed on the inner surface of the shroud assembly. Attachment of the insulation must be via Inconel welded stud type pins and must be held fast by Inconel retaining washers. A stainless-steel lip must be welded at the top edge of the flare shroud to protect the top edge of the insulation material.

h. Thermocouple: 1 each, type K flame monitoring thermocouple and 1 each type K pilot monitoring thermocouple. The thermocouple assemblies must be housed in a bendable protection sheathing of either stainless steel or Inconel material, and must include powdered magnesium oxide type insulation.

i. Propane Pilot System: A removable pilot assembly must be included with the flare assembly, and must be rated at a minimum of 35,000 Btu/hr. This assembly must include the pressure regulator, pressure indicator, solenoid valve, manual shutoff valve and pilot gas pressure manometer port. Flare must be designed to withstand loads & stresses per the requirements of UBC 110 mph wind loading and seismic Zone 4 criteria when attached to an appropriately designed equipment pad.

j. Finish: High temperature primer and finish coat over sand-blast prepared metal. Sand blasting must be to statistical process control Society for Protective Coatings (SSPC) SP-6 guidelines. Stainless steel portions do not require coatings.

k. Ignition Transformer Enclosure: The enclosure for the ignition transformer must meet National Electric Manufacturer Association (NEMA) 4 criteria and must receive the 120 VAC power and hi-tension conduits.

l. Flare junction enclosure/main control panel: The flare mounted junction box (s / (s) must meet NEMA 4 criteria and must house all of the flare mounted electrical gear required to meet the operational requirements of this specification.

m. Generator Exhaust Pipe Supports: Provide supports for the power generator exhaust piping on the flare stack. Supports shall be located at approximately 4-foot intervals vertically on the stack. Supports shall be stainless steel, mounted horizontally, and be 12 inches long, Unistrut type P1000HS-SS or SCSWA appointed Engineer approved alternate located parallel to the right side of the flare skid (east). The first support shall be 18 inches above the top of the flare, and the top support shall be 6 inches below the top of the stack.

I. SEQUENCE OF OPERATION: System must provide a sequence of operation including, but not limited to start up, shut down, relight attempts, and have options for three operational modes (auto vacuum, auto flow rate, or auto timer).

J. SPARE PARTS: One each of the following devices, of the CONTRACTOR, type and model installed in the system, must be provided as a part of this scope of work and supply.

1. Thermocouple, one each for pilot and main flame

2. Pilot gas ignitor

3. Pilot gas ignition transformer

4. Complete set of fuses applicable to system operation

5. Flame arrestor replacement element

K. GAS HANDLING SYSTEM: Performance and Design Requirements:

1. Landfill Gas Blower: Two (2) 700 SCFM landfill gas blowers (primary and backup) are required and must have been designed for use with and in the presence of landfill gas. The blowers will be installed in parallel and piped and valved such they can run independently of each other or together. The owner will be able to switch blower operation using valves and the skid control panel such that either blower can be designated as the primary blower. Each blower must be a multi-stage centrifugal device, with cast iron ends and sections, and aluminum cast impellers. All cast iron parts in contact with landfill gas must be coated with a baked phenolic coating system such as Heresite, or SCSWA appointed Engineer approved alternate for corrosion protection. The blower must be designed with a highly effective shaft seal and must be designed for direct coupled variable frequency drive (VFD) controlled applications. The blower must be capable of exerting a minimum of 55 inches WC vacuum at the suction side and must deliver sufficient pressure to service the landfill gas flare, including all system parasitic restrictions, throughout the full design range of this specification. The blower motor horsepower must not exceed 20 BHP (or as selected by the blower CONTRACTOR) when operating at the design flow and temperature. Under the design conditions listed above, individual blower must operate down to 70 SCFM without surging.

a. Motor: The blower must be furnished by the CONTRACTOR with a 20 HP (or as selected by the blower CONTRACTOR), 60 Hertz, 3 phase, 460 volt, totally enclosed fan-cooled (TEFC) enclosure, squirrel-cage induction motor with a 1.15 minimum service factor and must be factory mounted with the blower. The motor must be rated for service with a variable frequency drive. The motor must be equipped with insulated ODE bearing for protection against shaft currents.

b. Variable Frequency Drive: A VFD suitable for control of the blower/motor assembly must be provided. The VFD must be capable of controlling the blower motor by either a manually selected speed control or by a 4-20 mA signal provided by the flow rate or inlet pressure monitoring system(s). The operator must be able to select a desired landfill gas flow rate or landfill vacuum at the operator interface console (touch screen), and the VFD will automatically control the blower speed to maintain the selected flow rate or vacuum. The VFD must be supplied with internal line reactors.

i. Accessories: The blower must be furnished with a vibration sensor, mounted on or near the driven end bearing housing assembly of the blower, and must develop an output of 4-20 mA representative of in/sec vibrations from the blower. The PLC must accept this signal and must process the signal for touch screen display as well as adjustable alarm and shutdown levels.

ii. Installation: All piping will be supported to preclude the possibility of exerting undue forces and moments on the blower flanges. Suitable flexible connectors will be furnished to isolate the blower from the piping system. Each unit must be mounted flat and level on the gas handling system steel main skid.

iii. Experience: Blowers must be manufactured in the United States. Blower CONTRACTOR must have a minimum 5 years of experience in the design and manufacture of this type of equipment and have a minimum of 25 operating installations in the United States operating on landfill gas.

PRE-APPROVED MANUFACTURERS INCLUDE:

a) Atlas Copco

b) Gardner Denver

c) Lone Star Blower

d) National Turbine

e) Continental Blower

2. Moisture Removal: The moisture removal system (knockout tank) must be 304 stainless steel or approved as equal by SCSWA APPOINTED ENGINEER. It must be of a vertical, cylindrical design with demister element removal from the top. An 8-inch flanged, covered, inspection port must be provided in the side near the bottom for manual clean out of accumulated debris. Nozzle flanges must meet ANSI 125# specifications. The system must be able to remove 99% of droplets >6 micron and must also remove particulates having a density equal to or greater than water which are >6 micron in size. At the design flow rates, temperatures and pressures, it must not have a clean pressure drop greater than 3 in. W.C. The moisture knockout vessel must be capable of withstanding no less than 5 pounds per square inch gauge (PSIG) pressure/vacuum.

a. Knockout tank Elements: Elements must be manufactured from polypropylene fiber and woven in pads or approved equal. Over 90% of the fiber must be perpendicular to the flow of the gas.

There must be three groups of pads, each pad must be 4 layers thick. Each group of pads must have the following gauge size fibers and percent void space: 1st - 37/97; 2nd - 16/97; 3rd - 8/96.

b. Condensate Removal: There must be a minimum size 2 inch IPS pipe coupling in the bottom of the filter for condensate removal. The condensate removal pipe/flange must be brought to the skid edge and include an isolation valve and auto drain valve.

c. Pressure drop monitoring: There must be two minimums sized ¼ inch pipe couplings in the side of the filter, one each upstream and downstream of the filter element material, for the purpose of connecting a differential pressure monitoring device. The vessel must be provided with a Dwyer Capsuhelic differential pressure gauge, or SCSWA appointed Engineer approved alternate, installed with valving for isolation and atmospheric calibration.

d. The knockout tank must be equipped with an ultrasonic level switch for monitoring high condensate level in the base of the vessel. This system must provide a signal which must be indicated on the touch screen as an alarm/shutdown lamp and provide shutdown for high condensate level condition.

e. Experience: Knockout tank assemblies must be manufactured in the United States.

CONTRACTORS must have a minimum of 5 years of experience in the design and manufacture of this type of equipment and must have a minim of 10 units operating successfully on landfill gas in the US.

f. The knockout tank assembly must be located, installed and pre-plumbed on the gas handling system skid.

3. Butterfly Valves: Butterfly Valves in the gas piping must be gear operated, lug type, cast iron bodied valves with Viton or EPDM resilient seats and stainless-steel disc and shaft. No part of the cast iron body must be in contact with the landfill gas. The shaft seals must be designed for landfill gas service.

Valves must be selected for a minimum pressure of 25 PSIG. At a minimum, appropriately sized butterfly valves must be installed on the system skid at the inlet of the system (for isolation from the source) and in the suction piping to the blower.

a. Piping: All piping on the gas handling system skid must be of schedule 10 304L stainless steel.

The same specification must apply to tees, elbows, wyes, etc., except that carbon steel flanges may be used with stainless steel piping if the piping is provided with welded stainless-steel stub ends. All flanges must conform to ANSI 125# drilling specifications. All welding of piping and appurtenances must conform to the appropriate AWS specifications (https://www.aws.org/standards/page/standard-welding-procedure-specifications-swps).

b. Flexible Connectors: System piping must be provided, where required to relieve expansion and/or vibration stresses, with stainless steel corrugated, ANSI flanged flexible connection devices. At a minimum, these devices must be employed at the inlet and outlet of each blower.

c. Packaging: The complete gas handling system must be designed and manufactured as a pre-packaged, pre-plumbed, pre-conduited, pre-wired and factory pre-tested system. In areas where field installation requires connections to piping systems or wiring systems, flanged connections and terminal/junction boxes must be provided. The intent is to have as fully pre-assembled a system delivered to the job site as is possible.

d. Structural Skid: The structural skid must be manufactured from ASTM A-36 structural members.

The sizes, weights and shapes of the structural members must be SCSWA appointed Engineered to support all assemblies and sub-assemblies in loading, transport, and operation. Design criteria for the structure(s) must be UBC 110 mph wind overturn loading and zone 4 seismic loading. All welding must be accomplished per AWS specifications. Skid finishing must comply with the preparation, priming, and painting methods described in section 3.07 of this specification.

e. Gauges and Instrumentation Transmitters / Transducers: Where direct read-out pressure gauges are required, Dwyer Capsuhelic or SCSWA appointed Engineer approved alternate, must be employed, and must be selected in appropriate ranges and/or scales. Where analog transmitters / transducers are required for installation on the system process piping or in the control panel(s) for compliant control, such transducers must be provided and installed as 2-wire, 4-20 mA devices. Pressure, Vacuum, and differential pressure transducers must be provided as Rosemount, or SCSWA appointed Engineer approved equal products. For temperature signals, thermocouple type sensing devices selected for the appropriate temperature ranges are acceptable, with the thermocouple EMF signals processed in the system PLC. The minimum required list of monitoring devices for this system is:

i. Total LFG flow

ii. Percent methane and percent oxygen

iii. Inlet Pressure Gauge, Dwyer Capsuhelic or SCSWA appointed Engineer approved alternate

iv. Inlet Temperature Gauge, 4-1/2 inch dial

v. Inlet Pressure Transmitter

vi. Demister differential pressure gauge, Dwyer Capsuhelic or SCSWA appointed Engineer approved alternate

vii. Blower discharge Temperature Gauge, 4-1/2 inch dial

viii. Flame Arrester Pressure Gauge, Dwyer Capsuhelic or SCSWA appointed Engineer approved alternate

4. Recorders: Where process recorders are required for installation on the system or in the control panel(s) for specification and/or permit compliance, such recorders must be provided as Yokogawa paperless strip SCSWA appointed Engineer approved alternate chart type devices capable of collecting, accumulating, storing, and presenting digital records of monitored systems. Provide 1 each of a 6-Channel FX-1006 Yokogawa Digital Recorder or SCSWA appointed Engineer approved alternate with math function, Ethernet, USB, reporting function, and fail/memory alarm option, Underwriters Laboratory (UL) Listed device.

L. CANDLESTICK FLARE CONTROL SYSTEM: The control panel(s) for the candlestick flare system must be compliant with National Electrical Manufacturers Association (NEMA) 4X specifications at a minimum and must include a weather shield for protection against rain and heat radiation. The shield must extend 36 inches in front of the panel and 12 inches to either side, front north facing. The control panel must be mounted, installed and pre-wired to the extent possible by the system CONTRACTOR. The control panel system must be designed for installation on the gas handling system skid or as a remotely mounted system, whichever is depicted in the specification drawings. For gas handling system mounted systems, all conduiting and wiring must be completed at the factory to the maximum extent possible. The complete control system must be manufactured, wired, and tested by the flare CONTRACTOR in a UL approved panel shop, and must be specifically designed for the performance of the electrical and logical control requirements of this project. The control panel must bear the official UL label confirming UL 508A classification as an Industrial Control Panel. The panel must include as a minimum, but not be limited to, the following components:

1. Load and Motor Control Center for all the motors, fixtures, controls, and devices included with the system. The electrical system must include voltage transformer(s), disconnects, main and branch circuit protectors and any other protection and/or control devices required for complete operation of the system based on a single electrical service supply of 480 VAC, 3 Phase, 60 Hz. The MCC section must house the Variable Frequency Drives for the blowers.

2. Panel Temperature Control: The electrical motor control panel(s) and/or the logical control panels must be provided with thermostatically controlled heating and cooling systems as required insuring proper operation of all motor control and logical supervisory control sub-systems.

3. A PLC based control enclosure must be separate from all motor power circuits and related equipment including but not limited to fuses, breakers, starters, and VFDs. The PLC enclosure will receive all required signals from the various safeties, controls, and monitoring equipment, and to automatically control all the various components of the system. The PLC system must include an Ethernet connection capability with an industrial managed ethernet switch to allow for connection to an internet source provided by others, such that the control system can be accessed remotely by authorized personnel. Low voltage power for PLC and instrumentation must be isolated from 3 phase power incoming for motors and equipment. A UPS (uninterruptible power supply) with power conditioning capability must provide power to PLC system in control enclosure.

4. Surge protection devices must be installed for the 3-phase electrical service, the 120 VAC circuit(s), the DC voltage circuit(s), and the telephone/data line circuit(s).

5. An operator interface (HMI) panel or the face of the PLC control encloser must be used for operator interaction of the system with NEMA 4X rated buttons, switches, and indicator lights for equipment control. The system must allow either manual or automatic selection for the control of the operational components of the system. An operator interface must be provided to show schematically the state of the process and equipment, as well as Alarms, notification, process variables and set points. Such operator interface must be provided as a “Touch Screen “and must be fully compatible with the provided PLC and must be designed for industrial duty applications and installation onto the door of a NEMA 4X enclosure.

6. Safeties: The system must be equipped with the following safeties as a minimum:

a. Blower Motor overcurrent

b. Blower motor undercurrent (surge)

c. High Flare Temperature

d. Low Flare Temperature

e. Flame Failure

f. Low LFG Flowrate

g. High demister condensate level

h. Power Loss/Failure

i. High vibration

7. Control Panel Face Mounted Devices: The system must be equipped with the following control panel face mounted devices as a minimum:

a. Auto Dialing Alarm System (ADAS) to accept a minimum of four inputs and must be capable of being programmed to contact a minimum of 8 phone numbers.

b. Digital Recorder capabilities as specified herein

c. Alarm and shutdown message annunciation (Touch Screen Display)

d. Load center circuit breakers as required for full system operation.

e. Test/Off/Auto Switch for the system

f. Test/Off/Auto Switch for the blower

g. Open/Closed/Auto switch for the flare shutdown valve

h. Test/Off/Auto Switch for the pilot ignition system

i. Flame failure annunciation for the flare (Touch Screen)

j. Low flare temperature annunciation (Touch Screen)

k. Flare Shutdown Valve Failure annunciation (Touch Screen)

l. Low LFG Flow Rate annunciation (Touch Screen)

m. Flame Failure Reset Emergency Stop button and reset

M. EXECUTION-EXISTING CONDITIONS

1. Inspection:

a. Prior to all work of this section, the SCSWA must carefully inspect the installed work of all other trades and verify that all such work is complete to the point where this installation may properly commence.

b. Verify that the work of this section may be installed in accordance with all pertinent codes and regulations, the original design, and the referenced standards.

2. Discrepancies:

a. In the event of discrepancy, the SCSWA must immediately notify the SCSWA appointed Engineer.

b. The SCSWA must not permit the CONTRACTOR’S representative in charge of system start-up to proceed with commissioning in areas of Discrepancy until such discrepancy has been resolved.

c. Delivery: The CONTRACTOR is responsible for the logistics and expense of the delivery of the flare skid and all appurtenances, delivered (F. O. B. Destination) to the project site (Corralitos Regional Landfill, 14535 Robert Larson Road, Las Cruces, NM) at no additional cost to SCSWA.

N. WARRANTY: Written warranty for a minimum of 1 (one) year covering the entire blower/flare skid system and labor must be submitted with the proposal.

O. STARTUP AND TESTING

1. Factory Test: The entire system, including all controls must be tested at the CONTRACTOR’S plant before shipment. Complete test reports must be made available to SCSWA, which must show all system controls operate correctly prior to shipment.

2. Startup: The CONTRACTOR must furnish a factory trained representative for a minimum of three days of start-up & training labor. The representative will remain on site until start-up of the system has been completed to the SCSWA appointed Engineer’s satisfaction, unless failure to achieve a successful start-up is NOT the fault or cause of the CONTRACTOR.

3. Functional and validation tests: Upon completion of the installation, functional and validation tests must be performed by the CONTRACTOR with the assistance of the CONTRACTOR’S representative.

The SCSWA and/or SCSWA appointed Engineer must provide the necessary air quality monitoring agency support for monitoring inlet and outlet conditions of the properly operating flare system. The CONTRACTOR’S representative will demonstrate compliant operation of the system to the SCSWA appointed Engineer’s satisfaction. Should the system NOT perform to the requirements of this specification, the expense of any re-testing, if required, will be borne by the system CONTRACTOR, unless failure to achieve successful operation is neither the fault nor cause of the CONTRACTOR.

4. Instructions

a. When all required approvals of this portion of the work have been obtained, and at a time designated by the SCSWA appointed Engineer, on behalf of SCSWA, the CONTRACTOR’S representative in charge of start-up and testing must thoroughly demonstrate the operation and maintenance of all items installed under the work of this section in the submitted proposal response.

b. The instructions must be separated from the installation, start-up, and equipment adjustment services.

P. CLEANING

1. Clean exposed surface of all grease, dirt, and other foreign materials.

2. Touch up all marred or abraded surfaces as specified herein.

Q. PAINTING

1. Surface Preparation

a. All surfaces to be painted must be dry and must meet the recommendations of the paint CONTRACTOR for surface preparation. Cleaning and paining operations must be performed in a manner which will prevent dust or other contaminants from getting on freshly painted surfaces.

Oil and grease must be completely removed by use of solvents or detergents before mechanical cleaning is started. The gloss of previously painted surfaces must be dulled, if necessary, for proper adhesion of finish coats.

b. All metal surfaces that require painting and are continually exposed to temperatures of less than 200 °F must be commercially sand blasted to statistical process control (SPC) SP-6 requirements.

c. The flare and all surfaces exposed to temperatures greater than 200 °F must be commercially sandblasted to SPC SP-6 requirements.

d. All surfaces to be painted must be prepared and cleaned in accordance with the paint CONTRACTOR’S recommended procedures, prior to applying paint or surface treatment.

e. All surfaces must be thoroughly cleaned and must be free from oil, grease, dirt, dust, and other foreign substances.

f. All removable items which are in place and are not to be painted must either be removed or properly protected prior to surface preparation and painting.

2. Material Preparation

a. Paint must be thoroughly mixed each time any is withdrawn from the container to provide a mixture of uniform density. Paint containers must be kept tightly closed except while paint is being withdrawn.

b. Paint must be factory mixed to proper consistency and viscosity for hot weather application without thinning. Thinning will be permitted only as necessary to obtain recommended coverage at lower application temperatures. In no case must the wet film thickness of applied paint be reduced, by addition of paint thinner or otherwise, below the thickness recommended by the paint CONTRACTOR.

3. Paint and Primer Application

a. All external exposed surfaces of the flare must be blast-cleaned in accordance to above, and then primed and top-coated with Forrest Technical Coatings 54-H-050 High Temperature (1200 °F) Primer and 51-H-30 High Temperature Paint. This coating system, applied with airless spray equipment, in accordance with the CONTRACTOR’S directions and consisting of a Silicon Epoxy Primer and Silicone Paint, provides superior protection from rust and acids in harsh service conditions, as well as the compatible high temperature substrate not provided by organic zinc or alkyd primers.

b. All welded structural steel bases for the unitized gas delivery system will be blast-cleaned as above, and primed and painted with an Acrylic Modified Alkyd Enamel System, prior to the installation of the equipment and components mounted on these skids.

c. The mounted equipment, components, structural skids, and all other surfaces requiring shop painting and subject to damage by blast cleaning, will be cleaned in accordance with SSPC-1,2, or 3, as applicable, then primed and painted as above following final assembly of the system. The burner manufactured from 304L SS will not be painted. No painted surface must be in direct contact with unburned landfill gas.

d. Provide 1 gallon of touch up paint to SCSWA for future operations and maintenance (O&M).

R. PROPOSAL CONTENT: Cost will be evaluated and is included in the evaluation criteria for this RFP. The technical and cost information will be submitted together, as one (1) proposal with the cost and breakdown provided as a separate section, located at the end of the submitted proposal response.

1. Outline a brief, detailed description of methodology and approach to the section J. MAJOR TASKS listed herein.

2. The cost section for this project will not be submitted in a separate envelope, of the proposal, it is to be clearly titled as the COST PROPOSAL as a separate section, directly following the technical information.

3. The RFP COMPLIANCE DECLARATION (page 27) of this solicitation document must be completed, signed, and included as the first page of the proposal. Failure to do so may deem the proposal non-responsive and non-compliant (not considered for award).

S. EVALUATION CRITERIA: The proposal content will include the details for the following evaluation criteria:

A. To address Evaluation Criteria #1, below, provide the following:

1. Manufacturer details of section D. MAJOR TASKS, #2. Contractor Quality Assurance and

Experience

2. Name, address, telephone number, and e-mail address of the principal member/officer of the firm responsible for the administration of the contract.

3. The names of each key personnel member assigned to work on this project with the description of experience, areas of competence and percent of time assigned to this project for each.

4. Location(s) where blow/flare skid unit will be assembled, and the percent of work to be performed at each location for each key personnel member (totaling 100).

5. Timeline or benchmark for this project after award is granted.

B. To address Evaluation Criteria #2 below, provide the following:

Description of three (3) to five (5) references, with a minimum of three (3), current or past contracts like or similar to the requirements herein (excluding SCSWA). Each reference must include current information for the contact person who will provide project details for each item below:

1. the entity/company name and full address

2. contact information

3. full name(s)

4. current e-mail

5. current phone number (s)

C. To address Evaluation Criteria #3 below, provide the following: Provide a brief and detailed description for the proposed methodology and approach of professional, technical, and routine work described for MAJOR TASKS, listed herein, for the work performance of this project.

D. To address Evaluation Criteria #4, below, respond completely to the following: Provide a detailed, organized, and clear proposal in the sequence outlined in this solicitation.

E. To address Evaluation Criteria #5, provide a detailed account of the following cost items: Provide the details for the itemized cost list below and note that materials, travel, and other reimbursable items (billed at actual cost, no additional fees, or charges allowable).

a. All-inclusive cost for blower/flare skid system (including spare parts) and delivery to SCSWA’S work site at the Corralitos Landfill.

b. Labor costs for startup and on-site training.

c. Travel cost for item #2 (billable mileage and per diem are required to be the same or less than the current GSA rates)

F. Evaluation Criteria: Listed below are the evaluation weights by categories used in the scoring process by SCSWA’S evaluation committee:

S. PROPOSAL EVALUATION AND SELECTION:

Evaluation of the proposals per the submittal requirements will be conducted by an anonymous evaluation committee in accordance with the procedures incorporated within enclosed Schedule B, Scoring and Evaluation Information.

Upon completion of the evaluation process, a recommendation for award will be issued by the evaluation committee to the Purchasing Manager for the final review and award recommendation made to the SCSWA Board, if applicable. Contract(s) will have been negotiated prior to the committee recommendation and will follow the format of the sample contract draft, enclosed as Attachment A.

EVALUATION CRITERIA TOTAL WEIGHT 100%

1. Manufacturer (CONTRACTOR) and key personnel details, experience, competence, and ability to manage and plan to perform the proposed project as requested by SCSWA 20%

2. Demonstration of like/similar project performance with previous clients; and reference check scores from responses based upon the quality of work, control of costs, ability to meet schedules/deadlines and effective communications; and meets the minimum qualifications including Manufacturer, (CONTRACTOR). 15%

3. Capability demonstrated by a brief and detailed description for the proposed methodology and approach of professional, technical, and routine work for the major tasks list 20%

4. Proposal was detailed, organized, clear and was presented in the sequence outlined in the solicitation 5%

5. Total cost included the breakdown and details of the associated costs and is considered reasonable 40%

ATTACHMENT A

SAMPLE CONTRACT DRAFT

THIS CONTRACT made and entered by and between SCSWA of Las Cruces, New Mexico, hereinafter called “SCSWA” and AWARDED VENDOR, City, State hereinafter called “CONTRACTOR”.

1. SCOPE OF SERVICES: In a satisfactory and proper manner, the CONTRACTOR must perform services as outlined and proposed in the major tasks and response to SCSWA’ S RFP NUMBER: #21-13R, CANDLESTICK BLOWER/FLARE SKID SYSTEM FOR CORRALITOS LANDFILL, incorporated herein by reference and made a part of this Contract.

The CONTRACTOR is authorized to extend the same terms and conditions of this Contract to other governmental entities conditioned upon the procurement laws and regulations of those entities. SCSWA must not be a party nor have any liability relating to such extensions.

2. TERM AND SCHEDULE: This Contract is effective on MONTH/DAY, 2021. CONTRACTOR must perform the SERVICES in accordance with the time set forth as agreed upon by SCSWA and CONTRACTOR.

3. COMPENSATION: SCSWA must compensate CONTRACTOR for the performance of SERVICES under this Contract an estimated total amount of $xxx.xx, plus applicable taxes. CONTRACTOR will immediately schedule with SCSWA to perform the SERVICES upon finalized contract and receipt of a written Notice to Proceed from SCSWA (may be in the form of a letter, followed by the PO or a PO in lieu of a letter). Unauthorized costs incurred prior to such written Notice to Proceed are not allowable.

CONTRACTOR is responsible for payment of SCSWA’S Gross Receipts Tax levied on the amounts payable under this Contract, if applicable. CONTRACTOR agrees to comply with all federal and state tax payments and report all items of gross receipts as income from the operations of its business.

4.