august 24, 2006 - navajo · re: pinon wwtp construction - addendum no.1 dear allena, the following...

Solutions for Today… Vision for Tomorrow

2201 San Pedro Drive, NE Building 4, Suite 200 Albuquerque, NM 87110

Tel: 505.884.0700 Fax: 505.884.2376

Rev. 20101004

Q:\SEC---PROJECTS\115111 NTUA NNEPA Compliance Plan Assistance Lagoon Systems\ENGINEERING\Bid_Assist\BID

DOCUMENTS\ADDENDUMS\ADDENDUM 4\NTUA_WWTP Addendum 4.doc

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ADDENDUM 4 DATE: June 10, 2016

PROJECT NAME: NAVAJO TRIBAL UTILITY AUTHORITY WASTEWATER TREATMENT PLANT UPGRADES

PROJECT NO. 115111

TO: ALL PLAN HOLDERS OF RECORD

This Addendum forms a part of the Contract Documents and modifies or supplements the Project

Manual or the Drawings as indicated below. All other provisions of the Contract Documents shall

remain unchanged. This Addendum is hereby made a part of the Contract Documents to the same

extent as those provisions contained in the original documents and all itemized listings thereof. Bidders

shall acknowledge receipt of this Addendum in the appropriate space on the Bid Proposal form.

Contents

CLARIFICATIONS/INFORMATION............................................................................................................ 10

BID DOCUMENTS (VOLUME 1) ................................................................................................................. 1

BID DOCUMENTS TECHNICAL SPECIFICATIONS (VOLUME 2)..................................................................... 1

BID DOCUMENTS DRAWINGS (VOLUME 3) .............................................................................................. 2

CLARIFICATIONS/INFORMATION

The list below includes clarifications to questions. If not listed below, the answer is included in the

modifications.

1. All oral statements and clarifications made shall not be relied upon and will not be binding or

legally effective. Questions must be submitted in writing to Ms. Avis Jimm at [email protected].

2. Question: Is the substantial completion date of September 30, 2016 correct? If so this is a very

fast schedule.

Response: That is the correct substantial completion time.

NTUA WASTEWATER TREATMENT PLANT UPGRADES - ADDENDUM 4

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3. Question: What is the project cost estimate for construction?

Response: At the moment, we are not releasing that information.

4. Question: When is the owner furnished equipment scheduled to be delivered?

Response: The contractor shall assume that the delivery of all owner supplied equipment will

not prevent the contractor from completing the project by the schedule completion time.

5. Question: Who is responsible to furnish the generators? Contractor or Owner? If Owner, when

are they scheduled to arrive?

Response: An addendum has not been issued changing the responsibilities for the generators.

At the moment, the furnishing and installing the generators is the general contractor’s

responsibility.

6. Question: Article 14 allows bidders to submit partial bids. Can this be deleted and the entire

project is awarded to the lowest single bidder on all five facilities?

Response: NTUA intends to award the contract to a single contractor or multiple contractors.

This will not change.

7. Question: Due to the travel time to certain WWTPs the concrete will not meet the

specifications. What is the engineer suggestion to address this issue?

Response: The contractor may ask the batch plant to add a hydration stabilizer additive to

retard the setting time of the concrete. The contractor shall provide a submittal for the

hydration stabilizer with the concrete submittal.

8. Question: What is the compressive strength or density of extrude foam desired for expansion

joint filler?

Response: The minimum compressive strength for extruded foam expansion joint filler shall ve

13 psi.

9. Question: Can Geofoam be used on this project as a lightweight engineered fill over soil?

Response: InsulFoam® GF (Geofoam) or equal, high-performance, lightweight, geosynthetic fill

material consisting of closed cell expanded poly-styrene (EPS) may be used as lightweight

engineered fill over soil

10. The pre-bid meeting minutes and sign in sheet are attached.

NTUA WASTEWATER TREATMENT PLANT UPGRADES - ADDENDUM 4

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BID DOCUMENTS (VOLUME 1)

1. The last day for asking question was originally 10 days prior to bid opening June 9th. It has now

been extended to Tuesday, June 14th, 2016.

BID DOCUMENTS TECHNICAL SPECIFICATIONS (VOLUME 2)

1. Delete the non-stamped cover sheet for Volume 2 Technical Specification and replace with the

Stamped cover sheet attached.

BID DOCUMENTS DRAWINGS (VOLUME 2.1, 2.2, 2.3, 2.4, and 2.5)

1. See attached Electrical Addendum 1 for changes to Contract doc V 2.2

2. Please replace sheet 8 in Contract doc V 2.2, dated April 2016 and signed 04/04/2016 with new

attached sheet 8, dated June 2016 and signed 06/09/2016.

Smith Engineering Company

DATE: 6/2/2016

Allena Muskett, P.E.

Project Engineer

Enclosures: None

allenam

Typewriter

5/23/16

allenam

Typewriter

EXPIRES 12/31/2018

allenam

Typewriter

allenam

Typewriter

1

7 6 0 0 N . 1 6 T H S T R E E T , S U I T E 2 1 2 • P H O E N I X , A Z • 8 5 0 2 0 Phone: (602) 795-2699 • Fax: (602) 216-7201

June 9, 2016 Smith Engineering Company 2201 San Pedro Drive NE Bldg 4, Suite 200 Albuquerque, NM 87110

Attn: Ms. Allena Muskett, P.E.

RE: Pinon WWTP Construction - Addendum No.1

Dear Allena,

The following modifications to the Pinon Waste Water Treatment Plant Construction Documents are required to clarify that there is no longer an existing splasher aerator being reused but instead a new aerator No.8 is being provided.

Sheet E201 – Overall Site Plan

1. Relabel Aerator “No.7” in Cell #1 as “No.8”.

2. Delete Construction Key Note #3.

3. Leader pointing to Floating Aerator No.2 is typical for eight, not seven.

4. Construction Key Note #5 is typical for eight Floating Aerators, not seven.

Sheet E202 – Aeration System Single Line Diagram

1. Relabel “Splasher Aerator” as “Floating Aerator No.8” on the Single Line Diagram in the Load Calculations.

2. Delete Construction Key Note #2.

3. There is only one Conduit P207 and it shall contain 3-#10 for Floating Aerator No.2 and 3-#6 for Floating Aerator No.8 and a #10 ground, in a 1” conduit.

Please forward this addendum to all prospective bidders.

Do not hesitate to contact us if you have any questions.

Sincerely,

Darwin Reynolds, P.E. Project Engineer

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1 INSTALL 15 HP AIRO-02 ASPIRATING AERATOR BY AERATION INDUSTRIESINTERNATIONAL, LLC, COMPLETE IN PLACE AND OPERATING. INCLUDESAERATORS, ELECTRICAL CABLES, AND CONTROL PANELS SUPPLIED BY NTUA, ETC,COMPLETE IN PLACE AND OPERATING.

2 FURNISH AND INSTALL MOORING POSTS, CABLES, AND CONNECTIONS AS SHOWN INDETAILS.

3 CLEAR & GRUB SITE AS NECESSARY FOR WORK INCLUDING REMOVAL OF NATURALAND MANMADE OBJECTIONABLE MATERIALS FROM THE PROJECT SITE. PURSUANTTO STD. SPEC. 201, COMPLETE.

4 INSTALL 25 HP AIRO-02 ASPIRATING AERATOR BY AERATION INDUSTRIESINTERNATIONAL, LLC, COMPLETE IN PLACE AND OPERATING. INCLUDESAERATORS, ELECTRICAL CABLES, AND CONTROL PANELS SUPPLIED BY NTUA, ETC,COMPLETE IN PLACE AND OPERATING.

BUILD NOTES

2

2

ROW 1

ROW 2

ROW 3

ROW 4 ROW 7

ROW 6

ROW 5

1

1

1

1

1

1

1

2

2

CELL 2CELL 1

2

2

2

2

2

2

2

62' - 0"

59' - 8"68'- 0"

71' - 0"

64' - 8"

61' - 6"

65' - 0"

68' - 8"

89' -

0"

111'

- 8"

4

2

2

2

3

3

3

Rev. 20110719 Q:\SEC---PROJECTS\115111 NTUA NNEPA Compliance Plan Assistance Lagoon Systems\ENGINEERING\Bid_Assist\PREBID MEETING\MINUTES FOR PRE BID AGENDA.docx

NTUA Wastewater Treatment Plant Upgrades

MINUTES FOR PRE-BID MEETING

June 8, 2016 at 8:00 a.m.

*Responses for meeting and WWTPs tour

Owner: Navajo Tribal Utility Authority

Engineer: Smith Engineering Company

Engineer of Record: Allena Muskett, P.E.

Funding: NTUA funding

PreBid Location NTUA Water Utility Co, 100 Edge Water Drive, Tuba City Az, 86045

Bid Time and Date: 5:00 PM (DST) noon local time on June 20, 2016

Bid Location: NTUA, North Route 12 (FedEx/UPS) Fort Defiance , Arizona 86504

A. Sign-In Sheet

Smith Engineering provide sign in sheet

Meeting began about 10 minutes later to allow any contractors arriving late

B. Project Description Wastewater treatment plant upgrades at five separate facilities: Tuba City AZ, Kayenta

AZ, Chinle AZ, Pinon AZ, and Ganado AZ. The upgrades include electrical service

upgrades, backup power generators, and installation of new aeration equipment, yard

piping upgrades, and earthwork

Smith Engineering went over the project description to

C. Project Bid Documents:

1. Volume 1 – Bid, Agreement, & Construction Forms

2. Volume 2 – Technical Specifications

3. Volume 2.1 – Drawings Chinle WWTP

4. Volume 2.2 – Drawings Pinon WWTP

5. Volume 2.3 – Drawings Kayenta WWTP

6. Volume 2.4 – Drawings Gando WWTP

7. Volume 2.5 – Drawings Tuba City WWTP

Project Did document was explained to the contractors by Smith Engineering

D. Current Project Schedule:

Award of Contract: No later than June 24, 2016

Substantial Completion: September 30. 2016

Smith Engineering explained the project schedule to contractors

E. Bid Submittal:

1. Bid Form (signed by authorized individual(s) to bind the company)

2. Bid Proposal

3. Required Bid security in the form of a Bid Bond (EJCDC No. C-430) or Certified Check (circle type of security provided);

4. List of Proposed Subcontractors;

5. Evidence of authority to do business in the state or jurisdiction of the Project; or a written covenant to obtain such license within the time frame for acceptance of Bids;

6. Contractor’s License No.;

John NTUA explained for the Bid Proposals qualified Navajo contractors will have a 5% preference

Some of the Contractors said they couldn’t find the plans for the WWTPs and Smith engineering advice to go through Avis Jimm which they could find her information in Part I of this Pre Bid agenda.

F. Bidder’s Acknowledgment – Addendums

Everyone acknowledge receiving the last Addendums

G. Upcoming Addendum 2 highlights

1. Pre-bid Meeting Minutes & Sign-in Sheet.

2. Answers to any questions submitted in writing.

It was noted that this upcoming addendum was actually going to be number 4 and will include answers to the submitted ( in writing) questions from contractors

H. Construction Issues

1. Construction Water – Construction Water use permit is required from Jack Utter, 928-729-4146.

2. Construction Power – will have to be coordinated with NTUA. There is an allowance for costs associated with NTUA fees.

3. Materials and Special Inspections Testing Allowance

John NTUA explained that water permit would have to be submitted for construction water.

Noted that NTUA would provide the Generators, Aerators

NTUA also noted that the time to get the equipment would not interfere with the completion of the project.

I. Important Dates

1. Last day for Questions: 10 days prior to bid opening – June 9th

2. Answer to Questions: 6 days prior to bid opening – June 14th

3. Bid Due Date: June 20, 2016

4. Bid Evaluation: June 20-24, 2016

5. Award of Contract: No later than June 24, 2016

6. Contractor has 5 business days after issuance of NOA to submit agreement counter parts to NTUA.

John went over the important dates of the projects and extended the period for questions to Tuesday, June 14, 2016

J. Questions

1. E-mail questions to:

All questions must be submitted in writing to Avis Jimm, Contract

Administrator, at (928) 729-6243 or via email at [email protected]. NTUA will only respond to questions related to this RFB prior to the date indicated above.

All such emails should have “NTUA WASTEWATER TREATMENT PLANT

UPGRADES – QUESTIONS” in the subject line.

2. Interpretations or clarifications in response to questions will be issued by Addenda. No verbal responses will be binding.

K. Site Visit Schedule and WWTP Project Summary

i. TTuba City WWTP

a) Yard Piping b) 9-25 HP AIRE-O2 Aspirating Aerators (Install only) c) Electrical Upgrades

ii. Kayenta WWTP

a) Earthwork b) 3-10 HP AIRE-O2 Aspirating Aerators (Install only) c) 3-15 HP AIRE-O2 Aspirating Aerator (Install only) d) 2-25 HP AIRE-O2 Aspirating Aerators (Install only)

Location Start Time End Time

Approximate Travel Time

Hrs Meeting Time

Hr Site Visit

Hr

Tuba City, AZ 8:00 AM 10:00 AM 1.25

1.5 (covers entire project) 0.5

Kayenta, Az 11:15 AM 11:45 PM 1.25 0 0.5

Chinle, Az 1:00 PM 1:30 PM 1 0 0.5

Pinon 2:30 PM 3:00 PM 1.25 0 0.5

Ganado 4:15 PM 4:45 PM 0 0 0.5

e) Electrical Upgrades f) Generators and structures

iii. Chinle WWTP

a) Earthwork and Sludge moving b) Lagoon Construction c) Yard Piping d) Fencing and gates e) 5-25-HP AIRE-O2 Aerators (Install only) f) 1-15-HP AIRE-O2 Aerators (Install only) g) Electrical Upgrades h) Generators and structures

Since the electrical engineer George was able to catch up to the tour because he was running a bit late

iv. Pinon WWTP

a) 7-15 HP AIRE-O2 Aspirating Aerators (Install only) b) 1-25 HP AIRE-O2 Aspirating Aerator (Install only) c) Fencing, gates and handrails d) Electrical Upgrades e) Generators and structures

Again it was noted that water permit would have to get submitted for construction

v. Ganado WWTP

a) 3-25 HP AIRE-O2 Aspirating Aerators (Install only) b) Handrails c) Electrical Upgrades d) Generator and structures

Mike Young from FANN ENV. met with the group at Ganado WWTP

By the end of the day contractors where informed that they were able to get the plan sets.