B09-140P2026B0003-Amendment_5_0005.pdf

Offers must acknowledge receipt of this amendment prior to the hour and date specified in the solicitation or as amended, by one of the following methods:

(a) By completing items 8 and 15, and returning or (c) By separate letter or electronic communication which includes a reference to the solicitation and amendment numbers. FAILURE OF YOUR ACKNOWLEDGMENT TO BE RECEIVED AT THE PLACE DESIGNATED FOR THE RECEIPT OF OFFERS PRIOR TO THE HOUR AND DATE SPECIFIED MAY RESULT IN REJECTION OF YOUR OFFER. If by virtue of this amendment you desire to change an offer already submitted, such change may be made by letter or electronic communication, provided each letter or electronic communication makes reference to the solicitation and this amendment, and is received prior to the opening hour and date specified.

E. IMPORTANT: is not is required copies to the issuing office.

AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT 1. CONTRACT ID CODE

2. AMENDMENT/MODIFICATION NUMBER 3. EFFECTIVE DATE 4. REQUISITION/PURCHASE REQUISITION NUMBER 5. PROJECT NUMBER (If applicable)

7.ADMINISTERED BY (If other than Item 6) CODE

STANDARD FORM 30 (REV. 11/2016)

Prescribed by GSA FAR (48 CFR) 53.243

FACILITY CODE

9A. AMENDMENT OF SOLICITATION NUMBER

9B. DATED (SEE ITEM 11)

10A. MODIFICATION OF CONTRACT/ORDER NUMBER

10B. DATED (SEE ITEM 13)

11. THIS ITEM ONLY APPLIES TO AMENDMENTS OF SOLICITATIONS

The above numbered solicitation is amended as set forth in Item 14. is extended. is not extended.

12. ACCOUNTING AND APPROPRIATION DATA (If required) copies of the amendment; (b) By acknowledging receipt of this amendment on each copy of the offer submitted;

13. THIS ITEM APPLIES ONLY TO MODIFICATIONS OF CONTRACTS/ORDERS.

IT MODIFIES THE CONTRACT/ORDER NUMBER AS DESCRIBED IN ITEM 14.

CHECK ONE A. THIS CHANGE ORDER IS ISSUED PURSUANT TO: (Specify authority) THE CHANGES SET FORTH IN ITEM 14 ARE MADE IN THE CONTRACT ORDER

NUMBER IN ITEM 10A.

B. THE ABOVE NUMBERED CONTRACT/ORDER IS MODIFIED TO REFLECT THE ADMINISTRATIVE CHANGES (such as changes in paying office, appropriation data, etc.) SET FORTH IN ITEM 14, PURSUANT TO THE AUTHORITY OF FAR 43.103(b).

C. THIS SUPPLEMENTAL AGREEMENT IS ENTERED INTO PURSUANT TO AUTHORITY OF:

D. OTHER (Specify type of modification and authority)

Except as provided herein, all terms and conditions of the document referenced in Item 9A or 10A, as heretofore changed, remains unchanged and in full force and effect.

15C. DATE SIGNED

15A. NAME AND TITLE OF SIGNER (Type or print)

16C. DATE SIGNED

16A. NAME AND TITLE OF CONTRACTING OFFICER (Type or print)

14. DESCRIPTION OF AMENDMENT/MODIFICATION (Organized by UCF section headings, including solicitation/contract subject matter where feasible.)

PAGE

6. ISSUED BY CODE

8. NAME AND ADDRESS OF CONTRACTOR (Number, street, county, State and ZIP Code) (X)

CODE

15B. CONTRACTOR/OFFEROR

(Signature of person authorized to sign)

16B. UNITED STATES OF AMERICA

(Signature of Contracting Officer)

Previous edition unusable

PAGESOF

Contractor

The hour and date specified for receipt of Offers to sign this document and return

Vicki Freese-supler

See continuation page

NPS, DSC Contracting Services Div 1 Denver Federal Center, Building 50 P.O. Box 25287 Denver CO 80225-0287

DOI, NPS, DSC Contracting Services 1 Denver Federal Center, Building 50 P.O. Box 25287 Denver CO 80225-0287

PDS

PDS

140P2026B0003

10/02/2026

08/26/2026

1 2

CONTINUATION SHEET

REFERENCE NO. OF DOCUMENT BEING CONTINUED PAGES

NAME OF OFFEROR OR CONTRACTOR

SUPPLIES/SERVICES

(B)

UNIT

(D)

UNIT PRICE

(E)

AMOUNT

(F)

OPTIONAL FORM 336 (4-86)

Sponsored by GSA FAR (48 CFR) 53.110

ITEM NO.

(A)

QUANTITY

(C)

NSN 7540-01-152-8067

140P2026B0003/0005

CURE 318472 - Rehabilitation of Water &

Wastewater System - Curecanti National

Recreation Area

The purpose of this amendment is to provide for the following information:

1. To provide for the final set of Question &

Answer Responses thru 10/02/2026.

2. To provide updated construction specifications and construction drawings as noted below:

a. Construction Specification 22 11 19 -

Domestic Water Piping Specialties dated

09/30/2026

b. Construction Specification 33 32 16-13

-Packaged Sewage Channel Grinder 09/30/2026

c. Construction Drawings E2.01-E2.03

Detail

d. Construction Drawing E3.01 Detail

The date/time for the Bid Opening remains unchanged for October 7, 2026 at 2:00 Mountain

Time. Call in details and meeting details remain unchanged from the information provided through Amendment #1.

All other terms and conditions of the

Solicitation remain unchanged and in full force and effect.

29964.12.00 DOMESTIC WATER PIPING SPECIALTIES

ms2351 SECTION 22 11 19 - Page 1

PART 1 GENERAL

1.01 SUMMARY

A. Section includes: Backflow preventers.

1.02 ACTION SUBMITTALS

A. Product Data: For each type of specified product.

B. Shop Drawings: For domestic water piping specialties.

1.03 INFORMATIONAL SUBMITTALS

A. Test and Inspection Reports: For backflow preventer, reduced-pressure-principle type.

B. Field Quality Control Reports: For specified tests and inspections.

1.04 CLOSEOUT SUBMITTALS

A. Operation and Maintenance Data: For domestic water piping specialties to include in emergency, operation, and maintenance manuals.

PART 2 PRODUCTS

2.01 GENERAL REQUIREMENTS FOR PIPING SPECIALTIES

A. Domestic water piping specialties intended to convey or dispense water for human consumption are to comply with the SDWA, requirements of authorities having jurisdiction, and NSF/ANSI/CAN 61 and NSF/ANSI/CAN 372, or to be certified in compliance with NSF/ANSI/CAN 61 and NSF/ANSI/CAN 372 by an American National Standards Institute (ANSI)-accredited third-party certification body that the weighted average lead content at wetted surfaces is less than or equal to 0.25 percent.

2.02 PERFORMANCE REQUIREMENTS

A. Minimum Working Pressure for Domestic Water Piping Specialties: 50 psig.

B. Backflow Preventers, Reduced-Pressure-Principle Type :

1. Manufacturers: Subject to compliance with requirements, provide products by one of the following:

a. Ames Fire & Waterworks; A Watts Water Technologies Company

b. Apollo Valves; a brand of Aalberts Integrated Piping Systems (Aalberts Industries)

c. Caleffi North America

d. FEBCO; A WATTS Brand

e. WATTS; A Watts Water Technologies Company

f. Wilkins; Zurn Elkay

2. Description: Reduced-pressure backflow preventers are intended for high-hazard applications.

They contain two independently acting, spring-loaded check valves separated by a reduced-pressure zone that includes a relief valve force-loaded to the open position, allowing discharge to atmosphere if either check fails.

3. Standard: ASSE 1013.

4. Operation: Continuous-pressure applications.

5. Pressure Loss: Maximum of 5 psig measured across the middle third of the flow range.

6. Size: 2” and 6”

7. Design Flow Rate for 2”: 150 gpm

8. Design Flow Rate for 6”: 600 gpm

DOMESTIC WATER PIPING SPECIALTIES 29964.12.00

Page 2 - SECTION 22 11 19 ms2351

9. Pressure Loss at Design Flow Rate: 70 psig for sizes NPS 2 (DN 50) and smaller; 70 psig for NPS 2-1/2 (DN 65) and larger.

10. Body: Bronze for NPS 2 (DN 50) and smaller; ductile or cast iron with interior lining that complies with AWWA C550 or that is FDA approved or stainless steel for NPS 2-1/2 (DN 65) and larger.

11. End Connections: Threaded for NPS 2 (DN 50) and smaller; flanged for NPS 2-1/2 (DN 65) and larger.

12. Configuration: Designed for horizontal, straight-through flow.

13. Valves NPS 2 (DN 50) and Smaller: Ball type with threaded ends on inlet and outlet.

14. Valves NPS 2-1/2 (DN 65) and Larger: Outside-screw and yoke-gate type with flanged ends on inlet and outlet.

15. Air-Gap Fitting: ASME A112.1.2, matching backflow-preventer connection.

PART 3 EXECUTION

3.01 INSTALLATION OF PIPING SPECALTIES

A. Backflow Preventers: Install in each water supply to mechanical equipment and systems and to other equipment and water systems that may be sources of contamination. Comply with authorities having jurisdiction.

1. Locate backflow preventers in same room as connected equipment or system.

2. Install drain for backflow preventers with atmospheric-vent drain connection with air-gap fitting, fixed air-gap fitting, or equivalent positive pipe separation of at least two pipe diameters in drain piping and pipe-to-floor drain.

3. Do not install bypass piping around backflow preventers.

3.02 ADJUSTING

A. Adjust each reduced-pressure-principle backflow preventer in accordance with manufacturer's written instructions, authorities having jurisdiction and the device's reference standard.

END OF SECTION

1) Michael T. Laukenmann

2) Eric R. Schallert

29964.12.01 PACKAGED SEWAGE CHANNEL GRINDER

ms2351 SECTION 33 32 16-13 - Page 1

PART 1 GENERAL

1.01 DESCRIPTION

A. This section of specification describes sewage grinder and associated appurtenances including motor controls. Equipment shall be installed as shown on plans, as recommended by supplier, and in compliance with all OSHA, local, state, and federal codes and regulations.

B. Provide 1 open channel grinder. Each grinder system shall include a grinder, motor, motor controller, and rail mounting system.

C. Open channel grinder system shall be suitable for mounting in a domestic/commercial wastewater headworks structure. System components in headworks shall be explosion proof or intrinsically safe.

1.02 QUALITY ASSURANCE

A. Grinder(s), and motor controller(s) shall, as applicable, meet requirements of the following industry standards:

1. American Society for Testing and Materials (ASTM) A36: Standard Specification for Carbon

Steel Plate

2. American Society for Testing and Materials (ASTM) A536: Standard Specification for Ductile Iron

Castings

3. American Society for Testing and Materials (ASTM) A48: Gray Iron Castings

4. American Society for Testing and Materials (ASTM) A564: Grade 630 condition H1150 (17-4) stainless steel

5. American Iron and Steel Institute (AISI) Type 1020 Steel

6. American Iron and Steel Institute (AISI) Type 1045 Steel.

7. American Iron and Steel Institute (AISI) Type 4130 - Heat Treated Alloy Steel.

8. American Iron and Steel Institute (AISI) Type 4140 Heat Treated Alloy Steel.

9. American Iron and Steel Institute (AISI) Type 18-8 Stainless Steel

10. American Iron and Steel Institute (AISI) Type 304 and 304L Stainless Steel.

11. Society of Automotive Engineers (SAE) Type 660 Bearing Bronze

12. Cutter Material Hardness: 45-52 Rockwell C

13. National Electrical Manufacturer's Association (NEMA) Standards

14. National Electrical Code (NEC)

15. Underwriters Laboratory (UL and cUL)

16. International Electrotechnical Commission (IEC)

B. Qualified suppliers shall have a minimum 40 years’ experience at manufacturing two-shafted grinding and controlling equipment and a minimum 10,000 installations at equivalent applications. Supplier shall provide a list of names and dates of installations for verification by Owner.

1.03 WARRANTY

A. 12-month Limited Warranty:

1. Submit a standard twelve-month limited warranty document clearly identifying scope, term, and exclusions from coverage.

1.04 CLOSEOUT SUBMITTALS

A. Operation and maintenance manuals:

1. Operation manuals:

a. Detail step-by-step procedures required for system startup, operation, and shutdown.

b. Include manufacturer’s name, model number, parts list, and brief description of equipment and basic operating features.

2. Maintenance manuals: List routine maintenance procedures, possible breakdowns and repairs, and troubleshooting guides.

PACKAGED SEWAGE CHANNEL GRINDER 29964.12.01

Page 2 – SECTION 33 32 16-13 ms2351

PART 2 PRODUCTS

2.01 ACCEPTABLE SUPPLIERS

A. JWC Environmental Channel Monster.

1. Salient Characteristics:

a. Shaft: hardened alloy steel dual-shafted Muffin Monster grinder.

b. Rotating screening drum: 12 mm stainless steel coil.

c. Housing: ductile iron. Low-profile bottom end housing with bushing deflector.

d. PLC controls: automated with load sensing, auto-reversal, and independent motor control for drums and cutter stack.

e. Frame: stainless steel frame.

f. Cutters: hardened alloy steel, 11 mm thick, 17-tooth

g. Drum: stainless steel

h. Mechanical seals: tungsten carbide faces

i. Gaskets: Viton

j. Motor: 4.0 kW (optional explosion-proof/immersible) with 25:1 cycloidal reducer

B. When a supplier of alternate grinding equipment takes exception or requests a waiver of certain aspects of this specification, a grind test demonstration shall be performed to satisfaction of Owner.

Grinding equipment supplier shall cover their own costs of bringing their equipment to site. Test shall include, but NOT be limited to the following:

1. Competence of grinder to process a wide variety of materials likely to be encountered.

2. Fineness of grind and uniformity of resultant particle sizes.

3. Control system performance and repeatability.

C. Manufacturer must certify that unit can be returned for maintenance to factory or a local repair facility.

Certification shall include a statement that there will be no charge for repair labor.

2.02 IDENTIFICATION

A. Each unit of equipment shall be identified with a corrosion resistant nameplate, securely affixed in a conspicuous place. Nameplate information shall include equipment model number, serial number, supplier's name and location.

B. Motor shall have a corrosion resistant nameplate, securely affixed containing motor supplier, model number, serial number, motor horsepower, voltage, amperage, service factor, and rpm.

2.03 GRINDER

A. General:

1. Each grinder shall include guide plate, frame, end housings, covers, shafts, side rail, reducer, motor, cutters, spacers, bearings, and seals.

2. Grinder shall be two-shaft design and be capable of continuous operation, processing wet or dry.

3. Two-shaft design shall consist of two parallel shafts alternately stacked with individual intermeshing cutters and spacers positioned on shaft to form a helical pattern. Two shafts shall counter-rotate with driven shaft operating at approximately two-thirds (2/3) speed of drive shaft.

B. Components:

1. Guide Plate and Frame:

a. Material: ASTM A36 merchant quality steel.

b. Frame shall be designed for channel installation and shall house grinder assembly.

2. Grinder End Housings and Covers:

a. Grinder end housings:

1) Cast integral bushing deflector directs solids away from Mechanical Seal and Bearing Cartridge bushings.

2) Directional flow arrows on side of housings indicate correct installation orientation for solids discharge.

3) Cast ASTM A536-84 65-45-12 ductile iron.

ms2351 SECTION 33 32 16-13 - Page 3

b. Top covers: Cast ASTM A536-84 65-45-12 ductile iron.

c. Bottom covers: ASTM A36 hot rolled plates.

d. Shafts:

1) 2” (50 mm) hexagon heat treated AISI 4140 alloy steel.

2) Minimum tensile strength of 170,000 psi.

3) Supported on either end by Mechanical Seal and Bearing Cartridges.

4) Cantilevered designs are not acceptable.

3. Side Rails:

a. Inside profile of side rail shall be concave to follow radial arc of cutters. Side rail shall be affixed to grinder and maintain a clearance NOT to exceed 5/16” (8-mm) between major diameter of cutter and concave arc of side rail.

b. Evenly spaced horizontal fingers and flow channels. Flows channels create additional open area through grinder increasing flow capacity. Horizontal fingers direct solids toward cutters by creating a pressure differential towards cutters.

c. Shape of flow fingers creates a pressure gradient to force solids to cutters and minimize water head loss.

d. Fingers and flow channel are positioned on upstream side of grinder terminating even with center of cutter proving free discharge.

e. Side rails with flow channel running entire length of side rail are not allowed.

f. Cast ASTM A536-84 65-45-12 ductile iron.

g. Side rails shall be cast of ASTM A536-84 ductile iron.

4. Cutter Assembly: Stack Configuration: Multi-Zone-Staggered and Helical Stack.

a. Cutters and spacers stacked with two defined zones, each with its own unique cutter and spacer type, thickness, stacking configuration, and material throughout zone. Zone 1 cutters for high abrasion resistance and Zone 2 cutter for shearing and particle size control.

1) Zone 1-Grit Zone: Stack Height: Nominal 3” (75 mm). 7-tooth Cam style, .438-inch thick, 4.710-inch diameter. Designed specifically for waste streams containing heavy volumes of solids.

a) Precision ground individual cutter elements with thickness tolerance of +.000/ -.001

b) Keyed to shaft with hexagon inner profile.

2) Zone 2 (Working) Stack Height: Nominal 15” (380 mm). 17-tooth Serrated Cam style, .438-inch thick, 4.730-inch diameter. Designed specifically for waste streams requiring focused reduction of disposable and non-disposable cloth products or wipes. Multiple serrations located on outside diameter edge of cutter teeth create punctures or perforations in cloth or paper materials creating a confetti type cut that inhibits reweaving of material with hair and other solids.

3) Precision ground individual cutter elements with a thickness tolerance of +.000/ -.001.

4) Precision ground individual cutter elements with a thickness tolerance of +.000/ -.001.

5) Keyed to shaft with hexagon opening.

b. Spacers:

1) Smooth O.D. .446-inch thick.

2) Precision ground individual spacer elements with a thickness tolerance of +.001/ -.000.

3) Keyed to shaft with hexagon opening.

c. Inside configuration of both individual cutters and individual spacers shall be hexagonal so as to fit shafts with a total clearance NOT to exceed 0.015” (0.38-mm) across flats to assure positive drive, minimize wear on cutters, and increase compressive strength of spacers.

d. Individual cutters and spacers shall be AISI 4130 Heat Treated Alloy Steel, surface ground for uniformity and through-hardened to a minimum 45-52 Rockwell C.

e. To maintain particle size, height of tooth shall NOT exceed 1/2” (13-mm) above root diameter. Cutter to cutter root diameter overlap shall be NOT less than 1/16” (1.6-mm) or greater than 1/4” (6-mm) to maintain best possible cutting efficiency while incurring minimal frictional losses.

f. Cutter shall exert a minimum force of 450-lbs./HP (2680-N/kW) continuously and 1430-lbs./HP (8530-N/kW) at momentary load peaks at tooth tip.

5. Intermediate Shaft Collar with Vertical Support:

a. Intermediate shaft collars, AISI 304 stainless steel housing, SAE 660 bearing bronze bushing and 17-4 PH rotating element.

b. Vertical Support with adjustable brackets for mounting of shaft collars.

c. Vertical Support, AISI 304 stainless steel.

Page 4 – SECTION 33 32 16-13 ms2351

d. AISI 304 stainless steel grease fittings and grease lines attached to shaft collars and routed through Vertical Support.

e. Bushing and rotating element factory lubricated with high temperature marine grade grease.

6. Bearings and Seals:

a. Seals and bearing incorporated into a cartridge style design requiring no external seal flush or lubricants to operate wet or dry.

b. Rated for maximum operating depth: 208’ (90 psi).

c. Dynamic and Static seal faces to be Tungsten carbide with 6% nickel binder.

d. Cartridge bushing and housing are AISI 304 stainless steel.

e. Cartridge shall be independent of stack height, therefore cutter stack tightness shall NOT affect seal performance. Seal faces shall maintain their factory set preload independent of cutter stack tightness.

f. Seals shall meet required pressure rating regardless of cutter stack fit. Independent seal design shall provide protection against axial loading on shafts and bearings during shaft deflection.

g. O-rings shall be made of Buna-N elastomers.

h. Each seal face shall be locked to provide positive drive on rotating face and a positive lock on static face. This positive lock on seal faces is critical to long seal life in applications where grit or other abrasive materials are present.

7. Transfer gears with integral interlocking lobes:

a. Heat treated and hardened AISI 4140 alloy steel.

b. Number of teeth on gears creates ratio of cutter tip speed on low speed shaft to cutter tip speed of highspeed shaft greater than 0.90 and less than 1.00 to promote cleanout of processed material in cutting stack.

8. Couplings:

a. Low Speed Coupling:

1) Two-piece 3-jaw interlocking design.

2) Hardened AISI 4140 alloy steel

b. High Speed Coupling:

1) Type L 3-jaw with elastomer

2) Buna-N spider.

c. Lifting Eyes:

1) Drop forged Steel

2) Rated for 1300 lb

3) Designed for lift of grinder.

9. Speed Reducer: Gear speed reducer shall be a grease filled planetary type of reducer with "Heavy Shock" load classification. Reduction ratio shall be 29:1. High-speed shaft of grinder shall be directly coupled with reducer using a two-piece coupling.

2.04 GUIDE RAILS

A. Grinder unit shall be designed and constructed for rail mounting at pipe discharge in pump station wet well.

B. Guide rail system shall be configured for easy removal and reinstallation of grinder unit including motor. Rail system shall minimize binding.

C. Guide rails shall be Type 304 stainless steel of sufficient size to remain rigid and unbending under intended loading conditions.

D. Secure upper ends of rails to frame of access cover. Secure lower end to grinder mounting bracket.

E. Equip grinder unit with guide rails and lifting cable of length necessary to retrieve unit without entry into wet well.

2.05 MOTOR

A. Standards: Applicable parts of NEMA MG1.

ms2351 SECTION 33 32 16-13 - Page 5

B. Type: Squirrel cage induction, shell-type design, housed in air-filled, watertight chamber. Oil-filled ball bearing motor acceptable alternate.

C. Enclosure: Completely submersible, watertight.

D. 5 HP (2.2-kW), 1725 rpm. Efficiency: 81% minimum at full load

E. Ratings: Continuous duty 460-volt, 3-phase, 60 Hz, 1.15 service factor; capable of running continuously.

F. Insulation and temperature rating: Class F insulation rated 155°C (40°C ambient plus 115°C rise).

G. Starting: Full-voltage, across-the-line.

H. Power factor: 75% minimum at full load.

I. Required Running Torque per Horsepower (kW):

1. Continuously: 1000 in-lbs. (152-Nm) minimum

2. At momentary load peaks: 3300 in-Ibs. (500-Nm)

J. Monitor stator temperature using thermal sensors embedded in each stator winding. Sensors shall be used in conjunction with and supplemental to external motor overload protection.

K. Motors shall be furnished with preassembled power and control cables.

2.06 EXTENDED SHAFT AND SPOOL ASSEMBLY

A. Length: 18” (450 mm).

B. Extended Shaft:

1. 1-1/2” (38 mm) TGP round

2. AISI 1045 steel

C. Spool Assembly:

1. Spool tube with mounting flanges on either end to mount with Reducer and Adapter Spool.

2. ASTM A216 steel and AISI 1020.

2.07 MOTOR CONTROLLERS

A. DESIGN: NEMA enclosure with programmable logic controller (PLC), operation and fail indicators, and selector switches.

B. Basis of Design:

1. Model# PC2200 as manufactured and supplied by JWC Environmental Inc.

a. Motor Controller Power Supply: 460 V/ 3 PH/ 60 Hz.

C. Enclosure, Selector Switches, Pushbuttons and Pilot Lights

1. Enclosure NEMA 4X

a. Fiberglass reinforced plastic with hinged door and mounting flanges.

b. Selector Switches: 22 mm, three-position, rated equal or better than enclosure and indicate

On-Off/Reset-Remote.

c. Pilot Lights: 22 mm, LED (pilot lamp), rated equal or better than enclosure and indicate

POWER ON, grinder RUN, grinder JAMMED and MOTOR FAULT.

D. Programmable Logic Controller

1. Basis of Design: Panasonic FP-X series.

a. 16K program capacity.

b. (8) 24 Vdc inputs, (6) relay outputs.

Page 6 – SECTION 33 32 16-13 ms2351

E. Motor Starters, Overload Relays and Control Power Transformer:

1. Starters

a. IEC, full voltage, and reversing.

b. Maximum short circuit protective fault current 100 kA.

2. Overload Relays

a. Adjustable and sized to full load amperes (FLA) of motor.

3. Control Power Transformer:

a. Produce 120-volt AC power from supply power. Sized and fused in accordance with code to accommodate control power requirements.

F. Current Transducers: Discrete output type with an adjustable set point from 1-135A with 200ms or faster response time.

G. Operation:

1. Grinder Control: In accordance with ON-OFF/RESET-REMOTE Selector Switch.

a. OFF/RESET Position (OFF): De-energizes Grinder.

b. OFF/RESET Position (RESET): Clears all fault conditions.

c. ON Position: Energizes Grinder

d. REMOTE Position: Grinder operates as controlled by a remote start/stop dry contact.

2. Grinder JAM Condition: In accordance with setting of current transducer.

a. Controller will stop and reverse Grinder motor three (3) times and activate Grinder FAIL indicator and relay.

b. Grinder will stop operation.

3. Grinder MOTOR OVERLOAD Condition: In accordance with setting of Motor Overload Relay.

a. MOTOR FAULT indicator lamp will be illuminated, and FAIL relay will be activated.

b. Grinder will stop operation.

4. Grinder MOTOR OVERTEMP Condition: In accordance with setting of Motor Thermostat. (Only with applicable motors).

a. MOTOR FAULT indicator lamp will be illuminated, and FAIL relay will be activated.

b. Grinder will stop operation.

5. Power Failure:

a. While System is Operating: System shall not return to normal operation until power is restored and START pushbutton is pressed.

b. While System is in a Fail Condition: System shall return to a fail state when power is restored. Fail state shall not be cleared until reset.

6. Reset of Grinder: Accomplished from controller only.

2.08 SPARE PARTS

A. None.

PART 3 EXECUTION

3.01 FACTORY TEST

A. Each grinder and controller shall be factory tested to ensure satisfactory operation.

3.02 INSTALLATION

A. Grinder and controller shall be installed in accordance with suppliers installation instructions and in compliance with all OSHA, local, state, and federal codes and regulations.

ms2351 SECTION 33 32 16-13 - Page 7

3.03 FIELD QUALITY CONTROL

A. Supplier shall provide the services of a factory trained representative to check installation and to start-up channel grinder per Section 01 40 00.

END OF SECTION

1) Michael T. Laukenmann

2) Eric R. Schallert

Solicitation 140P2026B0003

Question No. Sheet or Reference Question Response Amendment

1 Can the use of Siemens hardware and WinCC be utilized in lieu of the use of Allen Bradley as specified in the construction specifications?

The construction specification does not require Allen- Bradley exclusively. Division 40 accommodates multiple SCADA hardware and software manufacturers, including, but not limited to Allen-Bradley, Siemens, GE and Schneider Electric, provided the proposed system meets the specified performance and compatibility requirements. The Division 40 specifications are performance based and accommodate alternate SCADA hardware and software platforms provided the proposed equipment meets the specified functional, performance, compatibility, communication and integration requirements. Bidders are not precluded from proposing an equivalent solution under the current specification. Any equivalent solution would need to demonstrate compliance with the specified salient characteristics and be evaluated through the submittal process.

2 Can key personnel serve in dual positions? I.e. Superintendent - also service as Quality Control? Yes 4

3 What is the gallon limitation for use of water - especially when utilizing water for flushing and chlorination purposes?

Park Water use: flushing, disinfection and other potable uses only.

Non-potable water availability contingent on drought conditions and availability; potential to utilize surface water of the lake if coordinated with CODEQ and BOR;

contractor to coordinate.

4 Does insulation presently covering existing piping need to be removed? Yes 4

5 Are offerors required to submit General References with their proposal? If so, is there a template? Yes - Template was uploaded to SAM.gov 4

6 Are offerors required to submit Section K with their proposal? Yes 4

7 What is the period of performance? 550 Calendar days 4

8 Could we please get a copy of the radio path survey that was completed prior to the project going out for bid?

This information will be shared with the awardee after award. 4

Question No. Sheet or Reference Question Response Amendment

9 Did the engineers confirm that the Aviat Aprisa SR+ radios will handle the required Allen Bradley data transfer rates?

Neither Allen Bradley nor Aviat Aprisa SR+ are specific requirements of the project – they were used as basis of design. The design does not seek to prescribe any particular make or model (PLC or radio) – the contractor may submit any equipment they feel best suits the needs of the system.

DOR is not aware of a published “data transfer rate” for Allen Bradey PLCs inherent to the model or ethernet IP protocol – data transfer rate is primarily dependent on the amount of data and frequency of data being sent, which more is dependent on specific configuration and timing of messaging than a protocol or brand. The minimum data update rates specified (every 15-30 sec depending on the application) are not demanding of a high speed connection; payloads are expected to be on the order of kilobytes, not megabytes for daily SCADA functions. The SR+ is the basis of design used for the radio interference analysis report requested by NPS during design; this model exemplifies a modern digital radio with advanced modulation schemes that are expected to outperform the existing analog radios.

10 The solicitation lists the offer due date/time as "09/29/2026 1400 MD." Could you please confirm the applicable time zone for the proposal submission deadline? 2:00 p.m. Mountain Time 4

11 Good Morning, may I have the sign in sheet from the prebid meeting on 9-10? See Amendment 02 4

12 Could you please confirm whether bidders are required to submit references and, if so, what specific information is required?

Please refer to General Reference Sheet uploaded to SAM.gov. 4

Section C states bids are due by the date and time identified in SF 33 Block 9. Section D states bids must be received at the government's initial point of entry by 5:00 PM one working day prior to the due date. Please confirm whether 5:00 PM the preceding workday is a recommended submission time or the actual deadline for receipt of bids.

Yes in order to get through the various Government firewalls. The Government can not confirm receipt if Bidder waits till 2:00 p.m. submission.

14 C2.13 Sheet C2.13 indicates that the Northeast Lagoon with different call outs than the other lagoons. Can you confirm that all 3 of the lagoons on the sheet with cross hatching get replacement liners?

Confirmed, all three shaded lagoons are slated to have their membranes removed and replaced 4

15 The Visitor Center area and parking lot will require saw cutting and asphalt replacement. Are there any timeline restrictions for that work to take place.

See phasing plan in contract documents. Maintain pedestrian walkways between parking areas and the VC building can be established and maintained during construction.

16 The Boat Ramp launch area parking will require saw cutting and asphalt replacement for both sewer and water. Are there any schedule restrictions for that work?

See phasing plan in contract documents. Boat ramp work will need to take place in the Spring (Feb - April) and fall (Oct-Dec) to keep the area usable for boaters in the peak summer season

17 Are there any schedule restrictions for the campground area including campground roads being cut and replaced along with road cut restriction?

See phasing plan in contract documents. Closures will need to be scheduled to have only one loop closed at a time. Main road cuts will need to leave one lane open for campground traffic and be covered at night.

18 Is there any restriction to when and how long the dump station can be out of service during upgrades?

See phasing plan in contract documents. None known at this time 4

19 The Housing and Maintenance area will require some asphalt cutting and road closures. Is there any schedule restrictions for those areas?

See phasing plan in contract documents. Access will be preserved for residents, maintenance, and law enforcement staff. Minimal occupancy is Spring (Feb- April) and Fall (Oct - Nov)

20 Will construction water be available from the existing system? Addressed in Question 3 4

21 Does the QCM and tester have to be 2 separate individuals? Yes, third party testing by definition is a third party. See specification. 4

22 Does the Government have a preferred Direct Digital Control for HVAC Company? If so, please provide the contact information.

No. The Government does not have a preferred Direct Digital Control (DDC) contractor. Selection and coordination of subcontractors is the responsibility of the Contractor. The DDC system shall comply with the requirements of the contract documents.

23 Can one person "triple hat" as superintendent, SSHO and QC Manager? No 4

24 Can the period of performance be extended after award once the material/equipment lead times are confirmed due to current market conditions for the equipment for this project? No 4

25 Please provide the site visit attendee sign in sheet. This was published as Amendment 2, please refer to SAM.gov. 4

26 Is permitting required? Required permitting is required per Specification section 01 31 00, 1.4.D.12 and 1.9 4

27 Is any landscaping restoration required for this project? For example: topsoil, seeding and fertilizer. Refer to requirements of Section 32 92 19 4

28 Please provide staking data points for the project. This information will be shared with the awardee after award. 4

29 Are red, yellow and blue tops required? Contractor is responsible for all utility locates; park may be able to assist in location of park owned utility. 4

30 Please confirm whether asbestos or lead is present on this project, and if so, provide the relevant documentation.

No hazardous materials testing was performed as part of the project design, and the Government is not aware of any information indicating the presence of asbestos-containing materials or lead-based paint within the project scope. Accordingly, no hazardous materials reports are available for this project.

Bidders shall base their proposals on the contract documents. If suspected hazardous materials are encountered during construction, the Contractor shall notify the Contracting Officer and proceed in accordance with the applicable contract requirements.

31 Are third party inspections required? See contract documents 4

32 When do you anticipate on site work starting? NTP will issue upon the contractor's sucessful completion of all division 01 requirements 4

33 Is traffic control required or can we shut down access to the area of construction?

See phasing plan in contract documents. Traffic control is required. Access to housing, maintenance and park operations buildings shall be maintained.

34 Is a SWPPP required? Yes, please refer to the Construction Specifications. 4

35 ` Is there a bulk water fill i.e. a hydrant or water source we can pump from for grading operatings in close proximity? Addressed in Question 3 4

36 What is the existing level of each lagoon to be dewatered? Contractor to verify on site. Varies. 4

37 In an effort to keep bids level across the board, is there a volume of solids to assume for lagoon solids to be hauled off? Contractor to verify on site. Varies. 4

38 Please provide drawings referenced in Notes 8 and 9 on page C2.13 on Part 6 of the drawings. Copies of the reference drawings to be provided in next amendment 4

39 Can you verify the max amount of construction water per day we are able to access. Addressed in Question 3 4

40 The plans call for water lines 2" and smaller to be HDPE and smaller to be HDPE but specs only reference K Copper. Please verify NPS preference.

Please refer to Section 33 11 00-13 for HDPE specifications. 4

41 Please verify if full time key personnel can wear multiple hats. Addressed in Question 2 and 23 4

Will there be any additional information/specifications released? Grinder pump, control panel, transfer switch, PVC liner, packaged lift station, mag meter, backflows, etc.

Replace lift station in-kind. Additional specs have been developed to support grinder pump and backflows.

Additional drawings have been developed to support manual transfer switch.

Grinder – Specifications provided through an addendum.

Grinder Pump Starter Panel – Specifications provided through an addendum.

Transfer Switch – Updated drawings with additional specification details on the MTS provided through an addendum.

PVC Liner – Provide new 60-mil HDPE liner in lagoons in accordance with CDPHE "Colorado Design Criteria For Domestic Wastewater Treatment Works - WPC-DR-1. C2.13 General Notes - Sanitary - 5.

Packaged Lift Stations – Replace in Kind. Controls-specific requirements are in 40 61 96 Section 2.05, as noted in dwg M3.02 note 5.

Magmeters – Specified in 40 70 00-16 Backflows – Specifications provided through an

On Sheets C2.03 and C2.06 can we get clarification on the size of pipe? Starting with MH1.5 it shows all 4 in/outs as 6". Then, on Sheet C2.06 the little bubble pointing to the trunk line shows a 2 which is 4". All profiles show 6" though. During my takeoff I followed the profile and assumed that little run to be 6".

For sanitary sewer alignment SSAN5, existing sewer records show a portion of to be 4” and transition to 6” downstream at the next manhole or manhole after (unclear in records). Contractor to verify existing sewer sizes and replace sewer size in-kind.

44 Please clarify if all organics grubbed to be hauled and disposed off site.

Remove brush, rubbish, spoil, excess excavated material, and material not suitable for backfill to offsite location of Contractor’s choice

45 Will the Contractor's dedicated supervision have access to Park Employee housing units are available. No 4

46 Please verify the existence of blue board that will require disposal. Confirmed. 4

47 Please verify if the contractor can expect to be able to have full closures in the area of work.

See phasing plan in contract documents. Traffic control is required. Access to housing, maintenance and park operations buildings shall be maintained.

48 Can you please specify the scopes expected to be procured and/or performed by others?

Unless specifically identified in the contract documents, no portions of the project scope are intended to be procured or performed by others. The Contractor is responsible for providing all labor, materials, equipment, coordination, and incidental work necessary to complete the project in accordance with the contract documents.

49 Please explain the small business threshold at site walk presentation left some confusion as to who qualifies.

To be considered a small business, businesses must have gross receipts of $45M or less over the past 3 years.

50 Can you provide an extension to the bid date to continue to pass responses to subcontractors and allow material pricing to come in? extended to 10/7 4

51 Will you please the slide show, sign up sheet and other materials that were shown at the site walk? Please refer to Amendment posted to SAM.gov. 4

In the Drawings Part 6 document on sheet C2.13 the 3 lagoons to be relined are shown and on sheets C2.53 and C2.54 details for the liner system are shown. ON Sheet C2.13 General Note 5 it states provide new 60 mil HDPE liner in lagoons in accordance with CDPHE Colorado Design Criteria for Domestic Wastewater Treatment Works - WPC DR-1. In that referenced document it lists liner materials that may be considered; however, there is no mention of geotextile anywhere in the document. Therefore, we need clarification as to what type and thickness of geotextile the engineer is requesting as underlayment for the project.

Provide Geotextile per Geomembrane manufacturer recommendation. 4

Please clarify whether a single qualified individual may perform multiple project management roles required by Division 01. Specifically, may the project superintendent also serve as the Quality Contol Manager and/or Site Safety Supervisor, provided that individual meets all qualification requirements and can adequately perform the responsibilities of each position?

Please identify any Division 01 positions that are required to be staffed by separate, dedicated individuals.

Addressed in Question 2 and 23 4

Specification Section 01 50 00 states the Contracting Officer's Field Office shall be a separate structure from the contractor's office, while also stating that NPS may be able to provide space. Please confirm whether the contractor shall include furnishing the specified minimum 500 SF Contracting Officer/Government field office in its bid. If NPS will provide suitable existing space, plese confirm that the contractor will not be required to furnish the field office.

If the contractor is required to furnish it, please confirm the required duration, location, utilities, furnishings, internet/communications, cleaning and other services to be included.

Follow specification. NPS will not provide office space. 4

Section 01 35 13.22 - Archaeological Protection - please clarify the required extent of archaeological monitoring under CLIN 5 and Section 01 35 13.22. Is an SOI qualified archaeological monitor required during all ground disturbing activities throughout the project, or only during ground disturbance within designated archaeologically sensitive areas?

Additionally, if ground disturbing work occurs simultaneously at multiple locations, is a separate archaeological monitor required for each active work area, or may one monitor cover multiple concurrent operations where practicable?

Per specification 01 35 13 – Archaeological Protection, section 3.3, paragraph A. “Archeological Monitor will observe ground-disturbing site work, including construction of temporary facilities, at archeologically sensitive areas”. Additionally, Per specification 01 35 13 – Archaeological Protection, section 1.3, paragraph B “Where ground disturbance is planned, a SOI qualified archaeologist will monitor the activity to ensure the documentation of previously unidentified subsurface deposits or artifacts.” If excavation occurs simultaneously at more than one location, a monitor will be required at each location.

Please confirm that the Contractor's archaeological consultant is responsible for preparing and obtaining the required ARPA permit. Please also clarify how the Government intends to address the project schedule if ARPA permit approval is delayed beyond the Contractor's control after timely submission of a complete permit application. Will Notice to Proceed for ground disturbing activities be withheld until the permit is approved or will Government/agency review delay be treated as an execusable delay to the contract schedule?

Yes, contractor is responsible for preparing and obtaining the permit. NTP will not be issued until permit is approved.

The contract document establishes Phase 1 and Phase 2 sequencing requirements. During the pre-bid site visit, NPS indicated that actual reservoir levels, boat ramp availability, and park operations may permit modification of the planned sequence. Please confirm whether the Contractor may propose revisions to the Phase 1/Phase 2 sequence. Including concurrent work in multiple areas when such revisions improve construction efficiency while maintaing required park operations, subject to NPS/Contracting Officer approval.

Variances are subject to contracting officer approval. 4

Please clarify responsibility for final seeding and revegetation. Section 32 92 19 states in multiple locations that seeding, mulching, post seeding erosion control and maintenance are to be performed by others under the NPS revegetation plan, while also identifying certain primary construction contractor responsibilities. Please identify precisely which restoration, seedbed preparation, erosion control, seeding, watering, maintenance, reseeding and establishment activities are the responsbility of the contractor and which activities will be performed by others so all bidders price the same scope.

Work identified in specification 32 92 19 as "To be performed by others per NPS Revegetation Plan." will be addressed under a separate contract. Remaining work is included in this contract.

Please identify the areas available for Contractor staging and stockpiling at Elk Creek and Lake Fork. Please confirm whether equipment, pipe, bedding material, excavated material, and other construction materials may be staged longitudinally within the approved Limits of Disturbance where adequate space exists. Also confirm whether excess excavated material not required for backfill may be removed and legally disposed of offsite in a disposal area obtained by the Contractor without further NPS approval, except for materials specifically required to remain onsite or be reused.

Yes, material may be staged within the approved limits of distrubance. Spoil may be legally disposed of offiste without NPS approval.

The HDD alignments and designated HDD locations are mandatory, while Section 33 05 07 requires the Contractor to develop work, storage, staging, carrier-pipe assembly, access, and mud-circulation areas. Please confirm that sufficient workspace and construction access will be available at each indicated HDD entry and exit location for the drill rig, mud system, support equipment, pipe fabrication/stringing, and pullback operations. Where the existing Limits of Disturbance or access shown is insufficient for an approved HDD means and methods plan, will NPS consider temporary access or workspace adjustments that do not affect protected cultural or natural resources?

Contractor to confine work activities within the approved limits of distrubance. Adjustments to the LOD will be reviewed on a case by case basis.

Please clarify the correct solicitation and PMIS numbers to be used on all bid documents. The Curecanti solicitation package identifies Solicitation No. 140P2026B0003, while the Section B Contract Bid Schedule identifies Solicitation No. 140P2026B0004. Certain solicitation headers also reference CURE 318742, while the bid schedule and project documents reference CURE 318472. Please confirm the correct identifiers and issue a corrected bid schedule and/or solicitation pages if required.

CURE is Solicitation number 140P2026B0003 and BRCA is Solicitation Number 140P2026B0004 4

The solicitation materials contain differing information regarding the estimated magnitude of construction. Gideon USA has identified solicitation information indicating an estimated price range between $5,000,000 and $10,000,000, while other solicitation information and the Government's September 10, 2026 pre-bid meeting state that the contract value is more than $10,000,000. Please clarify the Government's official estimated magnitude of construction for Solicitation 140P2026B0003 and identify the FAR 36.204 magnitude range bidders should rely upon for bidding purposes so that all bidders are working from consistent solicitation information.

Greater than $10M 4

Lake Fork Lift Station – Drawing I04.231 – Lake Fork List Station RTU (LFLS) Panel Layout & BOM lists a 24VDC Solar Charger and 12VDC Batteries, 105 AH on the Bill of Material however, there is not any solar panels listed on the BOM nor does drawing I04.230 show the existing lift station as a solar site. Is the Lake Fork Lift Station to be a solar site with the installation of the new packaged lift station? If so, a Rohn antenna tower would be more stable than a typical antenna mast. Please advise.

Lake Fork Lift Station does not need any solar, charger or batteries, utility power will be available. The only solar site in this project is Iola tank.

Specification section 40 67 00.2.02.A. states “Enclosure Manufacturer: Hoffman Engineering Company” however, all of the drawings for the Panel Layout and BOM list Saginaw. Should enclosures be Saginaw or Hoffman? Also, Saginaw part numbers are for Stainless Steel enclosures however, no NEMA rating is listed in the specification. Should all enclosures be stainless steel with a NEMA rating of NEMA 4X?

Neither Hoffman Engineering Company nor Saginaw are specific requirements of the project – they were used as basis of design. The design does not seek to prescribe any particular make or model – the contractor is responsible to submit a product that meets the requirements

Regarding the Aviat Aprisa SR+ VHF radios – we had a Teams conference call with Aviat, the Aprisa radio manufacturer, and they were not confident that their VHF radios would be able to handle the terrain at the park or the bandwidth required for Allen Bradley PLC’s, including the Micro870 PLC’s specified for this project. Would you like us to propose an alternative communication media that will handle the bandwidth and topography requirements?

See response provided in question 9 4

Sheet C1.10A indicates that these sections are to be HDD. Please confirm as it appears this may be in error.

HDD is not anticipated in this area.

Sheet C1.10B indicates that these sections are to be HDD. Please confirm as it appears this may be in error.

HDD is not anticipated in this area.

The specification indicates the project will proceed in phases to maintain park operations.

During the transition period, is a parallel operation of the old and new SCADA systems required and if so, for how long?

Contractor Responsibility. Integration contractor is expected to coordinate with mechanical contractor on timing of SCADA replacements occurring at the same time as pipe replacements, to minimize process outtages.

DA requirement. However, Pigler Automation has recommended transitioning to Ignition, FactoryTalk View or Optix as modern alternatives. Will the customer: (a) accept an engineered proposal using one of these alternative platforms (with technical justifications)?

(b) require strict adherence to GE iFIX as specified? (c) request a comparison/trade study between iFIX and alternatives?

GE iFix is curently utilized at the park and is prefered.

Any alternatives are subject to contracting officer approval through appropriate variance request. The variance shall show it meets or exceeds the specified requirements, including operational license costs.

70 The specification requires 'on-premise' SCADA with no cloud-based solution. Is there any future requirement or desire to enable cloud connectivity, remote access, or integration with other NPS systems that might influence SCADA software selection?

No. Cloud connectivity is not permitted.

What is the required runtime license scope…