191BWC21R0002 TIOI Rehab PH1-3 Specs 20210331.pdf

Front Cover

International Boundary and Water Commission United States and Mexico United States Section

Technical Specifications International Outfall Interceptor Trunkline & IOI Rehabilitation Phases 1-3 Santa Cruz County, Arizona

RFP 191BWC21R0002

March 31, 2021

International Boundary and Water Commission United States Section Engineering Services Division El Paso, Texas

Trunkline

& IOI

NIWTP

These Technical Specifications may be reprinted after Contract award using the awarded Contract number instead of the Solicitation number currently shown. The reprint shall have all changes indicated incorporated.

Reissuance of the awarded Technical Specifications with the Contract number will proceed without an amendment or modification.

Reissuance with the Contract number will NOT result in a new date being displayed on the Technical

Specifications.

PLEASE NOTE - Technical Specifications should be printed double sided.

Printing this document single sided will take 300 additional pages of paper and 48 of those pages will be blank to facilitate double sided printing.

Changes related to the February 5, 2021 version in comparison to December 14, 2020.

These items have been revised:

Section 00.01.15 1.4 Table 1

Section 00.31.50 1.3

Section 01.11.00 1.6

Section 01.42.00 1.4F.

Section 01.43.26 1.3 and 1.9B.

Section 01.57.19 3.1B.

Section 01.78.39 1.12

Section 03.31.00 Table 18 and Table 19 revised

Section 32.92.00 1.3A., 1.4B., 1.6B., 2.3B., and 2.4 with new Table 39

These sections have been added:

Section 31.05.19-Geotextile for Earthwork

Section 31.23.23.23-Flowable Backfill

Section 31.25.00-Slope Repair

Section 31.36.13-Gabions

Section 31.37.00-Riprap

Section 33.05.39.73-RCP Encasement

Due to new tables being added in Sections 31.05.19, 31.37.00, and 32.92.00 many table numbers throughout the document have changed.

Changes related to the March 17, 2021 version in comparison to February 5, 2021.

Section 00.31.19 1.6C.

Section 00.31.43 1.8C., 1.10, and 1.11

Section 00.31.50 1.3 and 1.4

Section 00.70.00 1.4B. and 1.4C.

Section 01.11.00 1.6D.

Section 02.01.00 1.12C.

Section 31.40.00 1.9A.

Section 46.03.00 1.4A.1., 1.6C., and 1.7A.

Section 46.04.00 1.8B., 2.4 Table 42, 2.4H. and Table 43, 2.6C.1., 3.2A., 3.5A., and 3.5B.

Section 46.06.00 1.8A.1., and 1.8B.3.

Changes related to the March 31, 2021 version in comparison to March 17, 2021. All changes are highlighted within the document text.

Section 00.31.43 1.10D. and 1.10E. reformatted

Section 00.31.50 1.4

Section 01.29.00 1.7B., 1.8P. added, and 1.8Q. reformatted

Section 01.78.39 1.5 and 1.7 added

Section 31.25.00 1.4B. and 1.8C.

Section 31.37.00 1.4B. and 1.8 added

Section 46.06.00 1.8B.3

This page intentionally left blank for double sided printing.

USIBWC International Outfall Interceptor

March 31, 2021 Division 00

USIBWC RFP 191BWC21R0002 Procurement and Contracting Requirements-Page 1

US International Boundary & Water Commission

International Boundary and Water Commission United States Section

TECHNICAL SPECIFICATIONS

DIVISION 00

PROCUREMENT AND CONTRACTING

REQUIREMENTS

Trunkline & IOI Rehabilitation Phases 1-3 US International Boundary & Water Commission International Outfall Interceptor Procurement and

Contracting

Requirements

Division 00

Division 00-Procurement and Contracting Requirements

March 31, 2021 Division 00

USIBWC RFP 191BWC21R0002 Procurement and Contracting Requirements-Page 2

March 31, 2021 Table of Contents Governing

USIBWC RFP 191BWC21R0002 00.01.10-Page 1

SECTION 00.01.10

TABLE OF CONTENTS GOVERNING

00.01.10 Table of Contents Governing 00.01.10-Table of Contents Governing

Table of Contents

DIVISIONS AND SECTIONS

Division 00-Procurement and Contracting Requirements 00.01.10-Table of Contents Governing 00.01.15-List of Contract Drawings 00.21.13-Instructions to Bidders 00.31.19-Existing Condition Information 00.31.21-Survey Information 00.31.24-Environmental Information 00.31.26-Existing Hazardous Material Information 00.31.32-Geotechnical Data 00.31.43-Permit Application 00.31.50-Other Project Information 00.60.00-USIBWC Forms and Standard Documents 00.70.00-Delivery of Data to USIBWC 00.70.13-Project Data 00.72.00-Order of Precedence 00.73.63-Security Requirements

Division 01-General Requirements 01.11.00-Summary of Work 01.22.00-Measurement and Payment 01.29.00-Payment Procedures 01.29.15-Certified Payroll 01.31.00-Project Coordination 01.31.75-Code of Business Ethics 01.32.16-Construction Progress Schedule 01.32.33-Photographic Documentation 01.33.00-Submittal Procedures 01.35.23-Safety 01.42.00-References 01.43.26-Testing and Inspection Agencies 01.45.00-Quality Control 01.51.00-Temporary Utilities 01.52.13-Field Offices and Sheds 01.55.00-Vehicular Access and Parking 01.57.00-Temporary Controls for Work Areas 01.57.19-Temporary Environmental Controls 01.58.00-Project Identification 01.61.00-Common Product Requirements 01.61.16-Use of Recovered Materials and Biobased Products 01.74.19-Construction Waste Management and Disposal 01.77.19-Closeout Requirements 01.78.36-Warranties

USIBWC RFP 191BWC21R0002 00.01.10-Page 2

01.78.39-Record Drawings

Division 02-Existing Conditions 02.01.00-Existing Conditions & Facilities 02.02.00-Diversion and Care of Water 02.21.00-Surveys 02.21.13-Cultural Resources Surveys

Division 03-Concrete 03.11.00-Concrete Forming 03.15.00-Concrete Accessories 03.15.16-Concrete Joints 03.21.00-Reinforcing Steel 03.31.00-Cast-in-Place Concrete 03.35.00-Concrete Finishing 03.39.00-Concrete Curing

Division 05-Metal 05.05.13-Galvanizing 05.05.23-Welding

Division 31-Earthwork 31.05.13-Geological Materials 31.05.19-Geotextile for Earthwork 31.11.00-Preparing Right of Way 31.23.20-Excavation, Backfill, and Restoration General 31.23.21-Excavation, Backfill, and Restoration for Structures 31.23.23.23-Flowable Backfill 31.25.00-Slope Repair 31.36.13-Gabions 31.37.00-Riprap 31.40.00-Temporary Sheeting and Shoring

Division 32-Exterior Improvements 32.92.00-Revegetation

Division 33-Utilities 33.05.39.41-Reinforced Concrete Pipe 33.05.39.73-RCP Encasement

Division 46-Water and Wastewater Equipment 46.01.00-Sewer Line Cleaning 46.02.00-Television Inspection of Sewer 46.03.00-Sewer Flow Control 46.04.00-Cured-in-Place Pipe (CIPP) 46.05.00-Protective Lining System for Manholes 46.06.00-Carbon Fiber Composite Structural Manhole Rehabilitation 46.10.00-Sanitary Sewer Manhole

USIBWC RFP 191BWC21R0002 00.01.10-Page 3

Technical Specification Tables

Table 1 – Phase I Index of Drawings Table 2 – Phase II Index of Drawings Table 3 – Phase III Index of Drawings Table 4 - Record Sewage Flows Table 5 – Stormwater Flows for Nogales Wash Table 6 - Quality Control Testing Table 7 - Required Minimum Biobased Content Table 8 - Required Minimum Recovered Content Table 9 - Warranty Priority Code A Table 10 - Warranty Priority Code B Table 11 - Warranty Priority Code C Table 12 - Warranty Priority Code D Table 13 - Permitted Surface Irregularities Table 14 - Epoxy / Adhesive Requirements Table 15 - ASTM C881 Minimum Requirements Table 16 - Nonshrink Grout Requirements Table 17 - Minimum Concrete Cover Variation Table 18 - Minimum Concrete Strength Table 19 - Maximum Water-Cement Ratio Table 20 - Deviations and Tolerances from Specified Lines, Grades, and Dimensions Table 21 - Acceptance Criteria for Questionable Water Supplies Table 22 - Chemical Limits for Mix Water Table 23 - Coarse Aggregate Gradation Chart Table 24 - Fine Aggregate Gradation Chart Table 25 - Standard Deviation Modification Factor Table 26 - Overdesign to Meet Compressive Strength Requirements (1) Table 27 - Overdesign to Meet Compressive Strength Requirements (2) Table 28 - Duration of Curing Table 29 - Galvanizing Standards Table 30 - Geotextile Requirements Table 31 – Foundation and Bedding Material Requirements Table 32 – Aggregate Base Course Requirements Table 33 – Coarse/Fine Aggregate Requirements Table 34 – Marshall Mix Design Criteria Table 35 – Performance Grading System Table 36 – Gradation Acceptance Limits for Marshall Mixes Table 37 - Riprap Gradation Requirements Table 38 - Plant Varieties and Seeding Rates (PLS per acre) Table 39 - Gradation of Topsoil Table 40 - Circular Pipe ASTM C76 & ASTM C655 Table 41 - Minimum CIPP Physical Properties Table 42 - Design Parameters for CIPP Table 43 - Site Specific Design Parameters for Each Pipe Segment Between Manholes Table 44 - Minimum Trowelable Underlayment Properties Table 45 - Minimum Filler Compound Properties Table 46 - Minimum Epoxy Protective Lining Properties Table 47 - Minimum Hydraulic Water Plug Properties

USIBWC RFP 191BWC21R0002 00.01.10-Page 4

Table 48 - CFSMRS Products Table 49 - CFSMRS Materials Table 50 - Environmental Durability Test Matrix Table 51 - Typical CFSMRS Properties Table 52 - Adhesion Test Pass Criteria Table 53 - Adhesion Test Fail Criteria

Technical Specification Figures

Figure 1 - Fillable Form (not printed) Figure 2 - Printed Fillable Form Figure 3 - Sample Project Sign Figure 4 - Fabrication Tolerances for Bars Figure 5 - Miscellaneous Qualification: Fillet Weld Break Specimen Figure 6 - Miscellaneous Qualification: Method of Rupturing Specimen

--End of Section--file:///C:/Users/crystal.cadillo/Documents/Items%20to%20File/Nogales/FY21/Construction%20FY21/Amendments%20Wkg/A00006%20Wkg%20Files/TIOI%20Rehab%20PH1-3%20Specs%20Revision6_Amd6_TCw.Update.docm%23_Toc68083496 file:///C:/Users/crystal.cadillo/Documents/Items%20to%20File/Nogales/FY21/Construction%20FY21/Amendments%20Wkg/A00006%20Wkg%20Files/TIOI%20Rehab%20PH1-3%20Specs%20Revision6_Amd6_TCw.Update.docm%23_Toc68083497 file:///C:/Users/crystal.cadillo/Documents/Items%20to%20File/Nogales/FY21/Construction%20FY21/Amendments%20Wkg/A00006%20Wkg%20Files/TIOI%20Rehab%20PH1-3%20Specs%20Revision6_Amd6_TCw.Update.docm%23_Toc68083498 file:///C:/Users/crystal.cadillo/Documents/Items%20to%20File/Nogales/FY21/Construction%20FY21/Amendments%20Wkg/A00006%20Wkg%20Files/TIOI%20Rehab%20PH1-3%20Specs%20Revision6_Amd6_TCw.Update.docm%23_Toc68083499

USIBWC RFP 191BWC21R0002 00.01.10-Page 5

March 31, 2021 List of Contract Drawings

USIBWC RFP 191BWC21R0002 00.01.15-Page 1

SECTION 00.01.15

LIST OF CONTRACT DRAWINGS

00.01.15 List of Contract Drawings 00.01.15-List of Contract Drawings

PART 1 - GENERAL

1.1 SECTION INCLUDES

Part 1 - General

1.1 Section Includes

1.2 Measurement and Payment

1.3 Drawing Titles

1.4 Drawing Index

Part 2 - Products

2.1 Additional or Revised Drawings

Part 3 - Execution (Not Used) --End of Section--

1.2 MEASUREMENT AND PAYMENT

The work performed by the Contractor under this Section shall not be paid for directly but shall be included in the various Bid Items under this Contract.

1.3 DRAWING TITLES

A. The Contract Drawings applicable to this Contract are two separate sets, one for each base phase, and entitled:

1. Rehabilitation Improvements Trunkline and International Outfall Interceptor, Santa Cruz

Count, AZ – Phase I

2. Rehabilitation Improvements Trunkline and International Outfall Interceptor, Santa Cruz

Count, AZ – Phase II

B. If the Phase III option is awarded with the base Phases I and II, the Contract Drawings applicable to this Contract shall include a third separate set entitled:

1. Rehabilitation Improvements Trunkline and International Outfall Interceptor, Santa Cruz

Count, AZ – Phase III

1.4 DRAWING INDEX

A. The Contract Drawings include the following:

Table 1 – Phase I Index of Drawings

SHEET NO. SHEET TITLE

I-GI-0001 COVER SHEET

I-GI-0002 DRAWING INDEX, LEGEND AND ABBREVIATIONS

I-GI-0003 GENERAL NOTES

I-GI-0004 REQUIRED MANHOLE REHABILITATION

I-GC-1001 GENERAL ARRANGEMENT PLAN SHEET 1 OF 2

USIBWC RFP 191BWC21R0002 00.01.15-Page 2

SHEET NO. SHEET TITLE

I-GC-1002 GENERAL ARRANGEMENT PLAN SHEET 2 OF 2

I-GC-1003 TEMPORARY CONSTRUCTION EASEMENT I-1

I-GC-1004

TEMPORARY CONSTRUCTION EASEMENT I-2 SHEET 1

OF 2

I-GC-1005

TEMPORARY CONSTRUCTION EASEMENT I-2 SHEET 2

OF 2

I-CU-2000 KEY PLAN SHEET 1 OF 2

I-CU-2001 KEY PLAN SHEET 2 OF 2

I-CU-2035 PLAN AND PROFILE STA. 365+89.43 TO STA. 372+00

I-CU-2036 PLAN AND PROFILE STA. 372+00 TO STA. 383+00

I-CU-2037 PLAN AND PROFILE STA. 383+00 TO STA. 394+00

I-CU-2038 PLAN AND PROFILE STA. 394+00 TO STA. 405+00

I-CU-2039 PLAN AND PROFILE STA. 405+00 TO STA. 416+00

I-CU-2040 PLAN AND PROFILE STA. 416+00 TO STA. 427+00

I-CU-2041 PLAN AND PROFILE STA. 427+00 TO STA. 438+00

I-CU-2042 PLAN AND PROFILE STA. 438+00 TO STA. 449+00

I-CU-2043 PLAN AND PROFILE STA. 449+00 TO STA. 460+00

I-CU-2044 PLAN AND PROFILE STA. 460+00 TO STA. 464+36.39

I-CU-3001 MANHOLE REHABILITATION DETAILS SHEET 1 OF 2

I-CU-3002 MANHOLE REHABILITATION DETAILS SHEET 2 OF 2

I-CU-3003 NEW CONCRETE SANITARY SEWER MANHOLE

26461 IOI RCP CONCRETE ENCASEMENT

26462 MH 93 SITE

26463 MH 93 SITE WORK DETAILS OPTION 1

26464 MH 93 SITE WORK DETAILS OPTION 2

Table 2 – Phase II Index of Drawings

II-GI-0001 COVER SHEET

II-GI-0002 DRAWING INDEX, LEGEND AND ABBREVIATIONS

II-GI-0003 GENERAL NOTES

II-GI-0004 REQUIRED MANHOLE REHABILITATION

II-GC-1001 GENERAL ARRANGEMENT PLAN SHEET 1 OF 3

II-GC-1002 GENERAL ARRANGEMENT PLAN SHEET 2 OF 3

II-GC-1003 GENERAL ARRANGEMENT PLAN SHEET 3 OF 3

II-CU-2000 KEY PLAN SHEET 1 OF 2

USIBWC RFP 191BWC21R0002 00.01.15-Page 3

SHEET NO. SHEET TITLE

II-CU-2001 KEY PLAN SHEET 2 OF 2

II-CU-2002 PLAN AND PROFILE STA. 0+00 TO STA. 9+00

II-CU-2003 PLAN AND PROFILE STA. 9+00 TO STA. 20+00

II-CU-2004 PLAN AND PROFILE STA. 20+00 TO STA. 31+00

II-CU-2005 PLAN AND PROFILE STA. 31+00 TO STA. 42+00

II-CU-2006 PLAN AND PROFILE STA. 42+00 TO STA. 53+00

II-CU-2007 PLAN AND PROFILE STA. 53+00 TO STA. 64+00

II-CU-2008 PLAN AND PROFILE STA. 64+00 TO STA. 75+00

II-CU-2009 PLAN AND PROFILE STA. 75+00 TO STA. 86+00

II-CU-2010 PLAN AND PROFILE STA. 86+00 TO STA. 97+00

II-CU-2011 PLAN AND PROFILE STA. 97+00 TO STA. 108+00

II-CU-2012 PLAN AND PROFILE STA. 108+00 TO STA. 119+00

II-CU-3001 MANHOLE REHABILITATION DETAILS SHEET 1 OF 2

II-CU-3002 MANHOLE REHABILITATION DETAILS SHEET 2 OF 2

II-CU-3003 NEW CONCRETE SANITARY SEWER MANHOLE

II-CU-4001 MISCELLANEOUS DETAILS SHEET 1 OF 1

Table 3 – Phase III Index of Drawings

III-GI-0001 COVER SHEET

III-GI-0002 DRAWING INDEX, LEGEND AND ABBREVIATIONS

III-GI-0003 GENERAL NOTES

III-GI-0004 REQUIRED MANHOLE REHABILITATION

III-GC-1001 GENERAL ARRANGEMENT PLAN SHEET 1 OF 2

III-GC-1002 GENERAL ARRANGEMENT PLAN SHEET 2 OF 2

III-GC-1003 TEMPORARY CONSTRUCTION EASEMENT III-1

III-GC-1004 TEMPORARY CONSTRUCTION EASEMENT III-2

III-CU-2000 KEY PLAN SHEET 1 OF 2

III-CU-2001 KEY PLAN SHEET 2 OF 2

III-CU-2012 PLAN AND PROFILE STA. 108+00 TO STA. 119+00

III-CU-2013 PLAN AND PROFILE STA. 119+00 TO STA. 130+00

III-CU-2014 PLAN AND PROFILE STA. 130+00 TO STA. 141+00

III-CU-2015 PLAN AND PROFILE STA. 141+00 TO STA. 152+00

III-CU-2016 PLAN AND PROFILE STA. 152+00 TO STA. 163+00

III-CU-2017 PLAN AND PROFILE STA. 163+00 TO STA. 174+00

III-CU-2018 PLAN AND PROFILE STA. 174+00 TO STA. 185+00

III-CU-2019 PLAN AND PROFILE STA. 185+00 TO STA. 196+00

III-CU-2020 PLAN AND PROFILE STA. 196+00 TO STA. 207+00

III-CU-3001 MANHOLE REHABILITATION DETAILS SHEET 1 OF 2

III-CU-3002 MANHOLE REHABILITATION DETAILS SHEET 2 OF 2

USIBWC RFP 191BWC21R0002 00.01.15-Page 4

III-CU-3003 NEW CONCRETE SANITARY SEWER MANHOLE

PART 2 - PRODUCTS

2.1 ADDITIONAL OR REVISED DRAWINGS

A. Except as provided in these Technical Specifications for drawings to be furnished by Contractor, Contract Drawings will be supplemented by additional or revised general and detail drawings as necessary or desirable as work progresses.

B. Additional or revised general and detail drawings will show dimensions and details necessary for construction purposes more completely than are shown on these Contract Drawings for features of work.

C. Perform work in accordance with additional general and detail drawings or revisions at applicable prices bid in schedule for such work.

PART 3 - EXECUTION

(Not Used)

March 31, 2021 Instructions to Bidders

USIBWC RFP 191BWC21R0002 00.21.13-Page 1

SECTION 00.21.13

INSTRUCTIONS TO BIDDERS

00.21.13 Instructions to Bidders 00.21.13-Instructions to Bidders

PART 1 - GENERAL

1.1 SECTION INCLUDES

Part 1 - General

1.1 Section Includes

1.2 Reference Standards

1.3 Measurement and Payment

1.4 Definitions

1.5 Duty to Inquire

1.6 Bid Items

1.7 Bid Submission

Part 2 - Products (Not Used) Part 3 - Execution

3.1 Requests for Interpretation (Duty to Inquire)

--End of Section--

1.2 REFERENCE STANDARDS

A. Federal Acquisition Regulation (FAR)

1. FAR 52.236-3, Site Investigation and Conditions Affecting the Work

1.3 MEASUREMENT AND PAYMENT

The work performed by the Contractor under this Section shall not be paid for directly but shall be included in the various Bid Items under this Contract.

1.4 DEFINITIONS

A. Within this Section, the following terms are used interchangeably.

1. Bid - Offer - Proposal

2. Solicitation - Request for Proposal - RFP

3. Bidder - Offeror - Contractor

1.5 DUTY TO INQUIRE

A. Contractors shall review the full Solicitation and all Contract Documents including, but not limited to, Technical Specifications, Contract Drawings, USIBWC provided data, referenced items, attachments, etc. to determine the full scope of work required.

B. If during review of these items, the Contractor finds discrepancies, omissions, conflicts, defects, errors, or ambiguities, they have a duty to inquire. The Contractor shall also inquire about items that are open to interpretation.

C. The Contractor shall inquire about items as soon as they are discovered, whether before deadline for submission of bidder questions, whether after deadline for submission of bidder questions, whether after submission of bids, or whether after Contract award.

USIBWC RFP 191BWC21R0002 00.21.13-Page 2

D. If the Contractor fails to inquire, they forfeit their right to any claim based upon said discrepancies, omissions, conflicts, defects, errors, ambiguities, or items that are open to interpretation. The

Contractor shall be proceeding at their own risk based upon only their unilateral interpretation.

E. The Contractor shall take no advantage of any item of which they have a duty to inquire.

1.6 BID ITEMS

A. The Contract Line Item Numbers (CLIN) that shall be bid upon are identified in Section B (bid schedule) of the Solicitation.

B. The Contractor shall include all work related costs within its bid unit prices even if not specifically listed in the bid schedule.

C. If an error exists on the bid schedule between the CLIN total cost provided and the resultant value of the CLIN quantity multiplied by the bid unit price, the bid unit price provided shall govern.

D. If the bid schedule includes CLINs entitled Receiving Lines, No Cost Receiving Lines, No Cost

Receiving Lines for IBWC Use Only, Receiving Lines for Internal Use Only, or similarly, then the

Contractor shall not provide a bid price for this CLIN. Receiving lines are used for USIBWC's computer system to make pay estimate processing easier. These are an administrative CLIN and have no value on the Contract.

1.7 BID SUBMISSION

A. Submission of a bid shall be conclusive evidence that the Bidder has reviewed, investigated, and acknowledged all items detailed in FAR 52.236-3.

B. Submission of a bid shall be conclusive evidence that the Bidder has investigated and is satisfied as to the conditions to be encountered, the character, quality, and scope of work to be performed, the quantities of materials to be furnished.

C. Submission of a bid constitutes agreement that Bidder has provided written notice of all discrepancies, omissions, conflicts, defects, errors, ambiguities, or items that are open to interpretation discovered in the Contract Documents, that responses to these written notices are acceptable to Bidder, and that Contract Documents are sufficient to indicate and convey understanding of all terms and conditions for performing and furnishing required work.

D. Bidder has the sole responsibility to make such independent instigation and examination as they deem necessary in order to satisfy themselves as to the conditions to be encountered in the performance of work and the quantities required to complete the work in a accordance with the

Contract Documents.

PART 2 - PRODUCTS

(Not Used)

PART 3 - EXECUTION

3.1 REQUESTS FOR INTERPRETATION (DUTY TO INQUIRE)

A. Contractors shall submit requests for interpretation, questions, and other concerns about the

Solicitation and Contract Documents including, but not limited to, Technical Specifications, USIBWC RFP 191BWC21R0002 00.21.13-Page 3

Contract Drawings, USIBWC provided data, referenced items, attachments, etc. to the Contracting

Officer identified on SF-1442.

B. Such requests shall be made even if the question and answer period identified in the Solicitation has passed.

C. Failure to request interpretation prior to providing a bid shall result in the Contractor being fully responsible for any cost or time impacts involved to perform the work required.

USIBWC RFP 191BWC21R0002 00.21.13-Page 4

March 31, 2021 Existing Condition Information

USIBWC RFP 191BWC21R0002 00.31.19-Page 1

SECTION 00.31.19

EXISTING CONDITION INFORMATION

00.31.19 Existing Condition Information 00.31.19-Existing Condition Information

PART 1 - GENERAL

1.1 SECTION INCLUDES

Part 1 - General

1.1 Section Includes

1.2 Related Requirements

1.3 Measurement and Payment

1.4 General

1.5 Existing Structures

1.6 Existing Utilities

1.7 Existing Sewage Flows and Capacities

1.8 Existing Stormwater Flows

Part 2 - Products (Not Used) Part 3 - Execution (Not Used) --End of Section--

1.2 RELATED REQUIREMENTS

A. Section 00.31.32-Geotechnical Data

1.3 MEASUREMENT AND PAYMENT

The work performed by the Contractor under this Section shall not be paid for directly but shall be included in the various Bid Items under this Contract.

1.4 GENERAL

A. Reports on the Existing Condition Information

1. Field assessment of existing conditions within the project limits was performed by URS. The findings were included and available in the project design report, entitled "Rehabilitation

Improvements Trunkline and International Outfall Interceptor, Santa Cruz County, Arizona, Design Summary Report Final Submittal," dated April 11, 2018.

2. Field assessment of existing conditions within the project limits was also previously performed by Brown and Caldwell. The findings were included and are available in a report, entitled "Evaluation of the International Outfall Interceptor for the City of Nogales, Arizona," dated March 2005. Some work has been performed on the sewer line in various locations since

2005 including repairs to the pipeline and manholes so some information in this report may no longer be valid.

B. Geotechnical investigations were performed as noted in Section 00.31.32.

1.5 EXISTING STRUCTURES

1. There is an existing Parshall flume located along the International Trunkline at Station

0+40.25 between Manhole No. 1 and No. 2 built under the original Nogales International

Sanitation Project in 1971.

USIBWC RFP 191BWC21R0002 00.31.19-Page 2

2. There is an existing covered floodway with restricted access from Station 0+00 to 42+72.68 known as the Morley Tunnel and runs underneath or adjacent to N. Morley Ave. The

International Trunkline and Manhole Nos. 1-13 are located within this covered floodway.

3. There is an existing concrete lined open floodway from Station 42+72.68 to just passed

Manhole No. 32 at Station 101+56.58 known as the Nogales Wash.

1.6 EXISTING UTILITIES

A. The existing sewer pipeline, consisting of the International Trunkline and the International Outfall

Interceptor, begins at the United States and Mexico international border in Nogales, AZ just east of the Nogales International Port of Entry on N. Grand and extends north to the Nogales International

Wastewater Treatment Plant (NIWTP) located at 865 Rio Rico Industrial Park in Rio Rico, Arizona.

The existing pipeline was installed between 1970 and 1971 and is comprised of unlined, reinforced and unreinforced concrete pipe that ranges in size between 24 inches and 42 inches in diameter. The sewer pipeline is approximately 46,436 linear feet in total length and has over 100 manholes within its alignment. The segment of the original main collector line that was removed and enlarged is known as the International Trunkline (Trunkline) and the extended portion of the sewer line is known as the International Outfall Interceptor (IOI).

1. The Trunkline extends approximately 8,146 linear feet from Manhole No. 1 at the border to

Station 81+46 just before Manhole No. 27.

2. The IOI begins at Station 81+46 just before Manhole No. 27 and extends about 38,290 linear feet to Manhole No. 99 at the NIWTP.

3. Currently, domestic and industrial wastewater generated in Nogales, Sonora is conveyed north through the main collector line in Mexico and across the border into Nogales, Arizona, where

Mexican wastewater is eventually combined with Arizona wastewater in the Trunkline and the

IOI for treatment at the NIWTP and discharge into the Santa Cruz River. The Trunkline and the IOI are also impacted from stormwater-sewer practices in Nogales, Sonora that result in stormwater-induced sanitary sewer overflows in Nogales, Arizona.

B. The Contract Drawings depict utilities that were able to be determined in the field. Arizona 811 was contacted prior to the topographic survey field operations; however, not all utility companies were able to mark their lines in the field. The Contractor performing rehabilitation of the IOI shall contact

Arizona 811 prior to any rehabilitation operations and bypass pumping set-up.

C. A 12" lateral connected to the IOI at Manhole No. 96 contributes all sewage flows from Rio Rico, Arizona. The City of Nogales owns the 12" sewer line up to a manhole located upstream with a meter station. Upstream of this manhole is an 8" forcemain owned by Rio Rico's Liberty Utilities

Company.

1. Contractor shall field verify these existing sewer lines and inspect the manholes upstream of the IOI Manhole No. 96 along the 12" lateral.

2. All bypassing of the Rio Rico sewer line and requested shutdowns of the lift station and forcemain require coordination with and approval from Liberty Utilities and the City of

Nogales.

3. The Rio Rico forcemain lift station capacity is approximately 2.5 hours; this is the maximum duration the lift station and forcemain can be shutdown.

4. Average flows from the Rio Rico forcemain are approximately 0.391 MGD, with a peak flow of 0.449 MGD. The flow is fairly constant but lessens overnight.

USIBWC RFP 191BWC21R0002 00.31.19-Page 3

1.7 EXISTING SEWAGE FLOWS AND CAPACITIES

A. The "Construction Report Nogales International Sanitation Project, Nogales, Arizona" provided the following design parameters for the Trunkline and IOI:

Design Year 2000

Population Served

Nogales, Sonora 100,000

Nogales, Arizona 50,000

Total 150,000

Average Daily Flow (based on 90 gal/capita/day, including industrial and infiltration)

Nogales, Sonora 9.0 mgd

Nogales, Arizona 4.5 mgd

Total 13.5 mgd

Maximum Hourly Flow (based on a peaking factor of 150% of average daily flow)

Nogales, Sonora 13.5 mgd

Nogales, Arizona 6.75 mgd

Total 20.25 mgd

B. Based on the 2005 Brown and Caldwell Evaluation Report, the limiting capacity of the pipeline varies but ranges from 12.9 million gallons per day (mgd) at Manhole No. 7 near the Mexican border to 19.1 mgd at the Parshall flume located immediately prior to the NIWTP.

C. Table 4 summarizes the daily flows reported by USIBWC for the time period January 2019 through

December 2019. Comparison of these data to the design parameters indicates that the current flows do exceed the capacity of the pipe on an irregular basis.

USIBWC RFP 191BWC21R0002 00.31.19-Page 4

Table 4 - Record Sewage Flows

Month

Nogales, Sonora Flows

Total Flow Max Day Min Day Avg Daily Flow

(MGD) (MGD) (MGD) (MGD)

January, 2019 437.381 16.36 11.153 14.109

February, 2019 390.36 16.746 12.789 13.941

March, 2019 442.772 16.237 11.71 14.283

April, 2019 403.801 14.058 12.359 13.46

May, 2019 394.269 13.427 9.903 12.718

June, 2019 343.32 12.311 10.592 11.444

July, 2019 379.071 14.142 10.69 12.228

August, 2019 415.131 14.511 12.582 13.391

September, 2019 410.027 16.132 12.615 13.668

October, 2019 359.721 13.907 10.515 11.604

November, 2019 356.685 15.327 10.469 11.89

December, 2019 431.471 15.931 12.056 13.918

Month

Nogales, AZ Flows

Total Flow Max Day Min Day Avg Daily Flow

(MGD) (MGD) (MGD) (MGD)

January, 2019 81.219 2.926 1.847 2.62

February, 2019 75.74 4.754 2.16 2.705

March, 2019 100.528 5.29 2.54 3.243

April, 2019 79.049 3.183 2.231 2.635

May, 2019 74.131 2.768 2.029 2.391

June, 2019 77.88 3.022 2.195 2.596

July, 2019 78.729 3.465 1.258 2.54

August, 2019 84.769 3.683 0.089 2.734

September, 2019 96.053 5.294 1.942 3.202

October, 2019 114.879 4.149 3.246 3.706

November, 2019 115.848 6.427 1.406 3.862

December, 2019 119.526 6.055 1.206 3.856

Month

Total NIWTP Influent Flows (at MH 98)

Total Flow Max Day Min Day Avg Daily Flow

(MGD) (MGD) (MGD) (MGD)

January, 2019 518.6 19.1 13.6 16.729

February, 2019 466.1 21.5 15.3 16.646

March, 2019 543.3 20 16 17.526

April, 2019 482.85 16.9 14.6 16.095

May, 2019 468.4 15.9 12.1 15.11

June, 2019 421.2 14.9 13.1 14.04

July, 2019 457.8 17.1 13.3 14.768

August, 2019 499.9 17.3 14.6 16.126

September, 2019 506.08 20.7 15.3 16.869

October, 2019 474.6 18 14.1 15.31

November, 2019 472.533 21.4 14 15.751

December, 2019 550.998 19.775 15.519 17.774

USIBWC RFP 191BWC21R0002 00.31.19-Page 5

D. Diurnal flows through the Trunkline/IOI measured for USIBWC indicate that the typical diurnal flow pattern is similar to other sewage systems with the minimum flows occurring in the early morning hours and the maximum flows in the afternoon. For example, on Wednesday, December 9, 2015, the average flow was 11.869 mgd, with the minimum flow of 6.623 mgd recorded at 06:15 and the maximum flow of 15.431 mgd recorded at 13:15.

1.8 EXISTING STORMWATER FLOWS

A. The Nogales Wash conveys stormwater from Nogales, Sonora northward through the City of

Nogales, Arizona and then flows into the Potrero Creek which continues northward before discharging into the Santa Cruz River. The Trunkline and IOI are in very close proximity to the

Nogales Wash for much of its alignment and also cross the Potrero Creek at various locations.

B. Table 5 provides a summary of the flows for the Nogales Wash as recorded by the United States

Geological Service (USGS Station 09481000), which is near IOI Manhole No. 17. This table provides flow data for Water Year 2019 with a comparison to the same data for Water Years 1932 through 2019. Peak flows in Nogales Wash can exceed 6,000 cubic feet per second (cfs).

Additional data can be found at https://waterdata.usgs.gov/nwis//uv?site_no=09481000

Table 5 – Stormwater Flows for Nogales Wash

Flow Parameter Water Year 2019 Water Years 1932-2019

Annual Total (cfs) 3,787

Annual Mean (cfs) 10.4 8.39

Highest Annual Mean (cfs) 15.3 2017

Lowest Annual Mean (cfs) 0.537 1933

Highest Daily Mean (cfs) 539.0 Oct 23 650 Sep 17, 2014

Lowest Daily Mean (cfs) 0.630 Sep 13 0 Apr 1, 1932

Annual 7-day Minimum (cfs) 1.80 Jun 11 0 Apr 1, 1932

Maximum Peak Flow (cfs) 6,410 Jul 29, 2010

Maximum Peak Stage (ft) 11.2 Jul 29, 2010

10% of Flows Exceed (cfs) 13.1 9.28

50% of Flows Exceed (cfs) 3.94 3.40

90% of Flows Exceed (cfs) 2.07 0.0

Source: USGS National Water Information System (09481000)

C. The existing stormwater sewer system in Ambos Nogales does not have the capacity to accommodate the periodic peak flows that occur during large stormwater events; thus, there is a significant amount of infiltration of stormwater into the existing sanitary sewer system. This mixing of stormwater and sanitary sewage results in overflows of the sanitary system, which are conveyed northward through the Nogales Wash. As a result, the Nogales Wash and Potrero Creek and their tributaries are classified by the Arizona Department of Environmental Quality (ADEQ) as Impaired

Waters. The Contractor shall use caution when handling flows in these streams.

https://waterdata.usgs.gov/nwis/uv?site_no=09481000

USIBWC RFP 191BWC21R0002 00.31.19-Page 6

PART 2 - PRODUCTS

(Not Used)

PART 3 - EXECUTION

March 31, 2021 Survey Information

USIBWC RFP 191BWC21R0002 00.31.21-Page 1

SECTION 00.31.21

SURVEY INFORMATION

00.31.21 Survey Information 00.31.21-Survey Information

PART 1 - GENERAL

1.1 SECTION INCLUDES

Part 1 - General

1.1 Section Includes

1.2 Related Requirements

1.3 Measurement and Payment

1.4 Field Survey

1.5 Survey Control

1.6 Right-of-Way (ROW)

1.7 Existing Utility Survey

1.8 Temporary Construction Easements (TCE)

Part 2 - Products (Not Used) Part 3 - Execution (Not Used) --End of Section--

1.2 RELATED REQUIREMENTS

A. Section 02.01.00-Existing Conditions & Facilities

1.3 MEASUREMENT AND PAYMENT

The work performed by the Contractor under this Section shall not be paid for directly but shall be included in the various Bid Items under this Contract.

1.4 FIELD SURVEY

A. Field survey was performed by Meridian Surveying and Development who developed and provided the following, which were used as the basis of design.

1. Nogales International Outfall Pipe, Nogales, AZ, dated January 22, 2015.

B. The surveyor collected data using a combination of Mobile Light Detection and Ranging (LIDAR), Reflectorless Total Station, and Real Time Kinematic Global Positioning System (RTK GPS). The final topographic mappings, including a three-dimensional surface, were provided in an AutoCAD file, survey point file, and surface TIN file. Contractor may request a copy of these files from the

COR after award.

C. The existing topography may differ significantly from what is shown in the 2015 survey given that the Nogales Wash and Potrero Creek and its tributaries are continually flowing and grades within the unlined section can change both horizontally and vertically due to the channel shifting during monsoon seasons. Monsoon season 2017 especially resulted in significant erosion and shifting of the banks of the Potrero Creek. Rocks, concrete debris, or other types of debris may be currently present along the Nogales Wash and Potrero Creek even if not shown in the 2015 survey drawings.

USIBWC RFP 191BWC21R0002 00.31.21-Page 2

1.5 SURVEY CONTROL

A. The surveyor established horizontal control based on Arizona State Plane, Central Zone, North

American Datum of 1983 (NAD 83) in International feet. Vertical control was based on North

American Vertical Datum of 1988 (NAVD 88) in International feet.

B. The survey was based on existing control points provided by the Santa Cruz County and City of

Nogales which are referenced on the survey drawings, mentioned in Paragraph 1.4A.1.

C. The surveyor prepared the survey drawings for the total length of the Trunkline/IOI showing existing pipeline alignment, existing pipeline stationing, manholes, and survey control points per the

USIBWC survey guidelines. The survey is presented at ground distance.

1.6 RIGHT-OF-WAY (ROW)

A. The City of Nogales has a pipeline easement or ROW from various property owners for the

Trunkline and IOI that has been defined as follows:

1. From Manhole No. 1 to Manhole No. 90, 50 feet total: 25 feet left and 25 feet right of the surveyed pipeline.

2. From Manhole No. 90 to the NIWTP, 40 feet total: 20 feet left and 20 feet right of the surveyed pipeline.

1.7 EXISTING UTILITY SURVEY

A. The surveyors identified the locations of existing surface features of visible structures and utilities, including, but not limited to, tunnels, channels, drainage outfall pipes, buildings, roadways, railroads, fences, overhead electrical lines, and stream beds. These locations are shown on the Plan and Profile sheets of the Contract Drawings. The Contract Drawings depict utilities that were able to be determined in the field. Arizona 811 was contacted prior to the topographic survey field operations; however, not all utility companies were able to mark their lines in the field.

1. NOTE: It is the Contractor’s responsibility to verify locations of all existing utilities (shown and not shown) prior to construction.

2. Additionally, attention is called to Sections 02.01.00 for additional requirements and guidelines for utility surveys.

1.8 TEMPORARY CONSTRUCTION EASEMENTS (TCE)

A. Temporary construction easements (TCEs) are shown on the Contract Drawings. These temporary easements include areas of work and/or access roads outside the City of Nogales' existing pipeline easement for the Contractor's use on this project. All construction work will be confined to the permanent and temporary construction easements shown on the Contract Drawings for the project.

1. Phase I Contract Drawings include Temporary Construction Easements I-1 and I-2.

2. Phase III Contract Drawings include Temporary Construction Easement III-1 and III-2.

USIBWC RFP 191BWC21R0002 00.31.21-Page 3

PART 2 - PRODUCTS

(Not Used)

PART 3 - EXECUTION

USIBWC RFP 191BWC21R0002 00.31.21-Page 4

March 31, 2021 Environmental Information

USIBWC RFP 191BWC21R0002 00.31.24-Page 1

SECTION 00.31.24

ENVIRONMENTAL INFORMATION

00.31.24 Environmental Information 00.31.24-Environmental Information

PART 1 - GENERAL

1.1 SECTION INCLUDES

Part 1 - General

1.1 Section Includes

1.2 Related Requirements

1.3 Reference Standards

1.4 Measurement and Payment

1.5 General

1.6 Preservation of Cultural and Natural Resources and the Environment

1.7 NEPA Documentation

1.8 Use of Geologic Materials on a Federally Funded Project

Part 2 - Products (Not Used) Part 3 - Execution (Not Used) --End of Section--

1.2 RELATED REQUIREMENTS

A. Section 01.57.00-Temporary Controls for Work Areas

B. Section 01.57.19-Temporary Environmental Controls

C. Section 02.21.13-Cultural Resources Surveys

1.3 REFERENCE STANDARDS

A. United States Code (USC)

1. Clean Air Act, 42 USC 7401 et seq.

2. Clean Water Act (CWA), 33 USC 1251 et seq.

3. Endangered Species Act (ESA), 16 USC 1531 et seq.

4. National Environmental Policy Act (NEPA), 42 USC 4321-4347

5. National Historic Preservation Act (NHPA), 54 USC 300101 et seq.

1.4 MEASUREMENT AND PAYMENT

The work performed by the Contractor under this Section shall not be paid for directly but shall be included in the various Bid Items under this Contract.

1.5 GENERAL

A. The project’s Environmental Assessment (EA), entitled "Environmental Assessment for Nogales

International Wastewater Treatment Plant (NIWTP) Upgrade/Expansion, International Outfall

Interceptor Replacement, Wastewater Collection System Rehabilitation, Nogales, Arizona and

Nogales, Sonora" dated 1999, was prepared for US EPA by Camp Dresser & McKee. This document includes the "Finding of No Significant Impact: Wastewater Infrastructure Improvements

March 31, 2021 Environmental Information

USIBWC RFP 191BWC21R0002 00.31.24-Page 2 for Nogales, Arizona and Nogales, Sonora," from EPA, dated February 3, 2000. The Contractor shall review and comply with the requirements provided in the EA document.

B. The Contractor shall review and comply with all of the terms and conditions of the USACE

Nationwide Permit (NWP) No. 12, Utility Line Activities.

C. Further details of environmental requirements are in Sections 01.57.00 and 01.57.19.

1.6 PRESERVATION OF CULTURAL AND NATURAL RESOURCES AND THE

ENVIRONMENT

A. If the Contractor initiates changes to the Contract and USIBWC approves the changes, the

Contractor is responsible for obtaining clearances and coordinating with the appropriate regulatory agencies.

B. Culturally Sensitive Areas

If a site or location of historical, archaeological, educational, or scientific interest is discovered within the right of way, cease all work immediately, secure the site from further disturbance and possible vandalism, and notify USIBWC. The site or location will be investigated and evaluated by

USIBWC.

1.7 NEPA DOCUMENTATION

The USIBWC has completed appropriate NEPA documentation prior to the construction of the project.

The USIBWC will be responsible for compliance with National Environmental Policy Act (NEPA).

1.8 USE OF GEOLOGIC MATERIALS ON A FEDERALLY FUNDED PROJECT

A. To ensure preservation of historical and archaeological data, prior to use of any soil, rock, or gravel including aggregate in concrete, the source must first be compliance confirmed by the COR to ensure compliance with Section 106 of the National Historic Preservation Act (NHPA).

B. Take no action to use or alter the proposed location until written approval for site use is received from the COR.

C. If the quarry or borrow site already provides materials for ADOT, USACE, or other governmental agency, a copy of the environmental approvals from said agencies may be provided to the COR.

D. Include permission for Government access to any geological source locations.

E. Full details of requirements for geological materials are in Section 02.21.13.

PART 2 - PRODUCTS

(Not Used)

PART 3 - EXECUTION

March 31, 2021 Existing Hazardous Material Information

USIBWC RFP 191BWC21R0002 00.31.26-Page 1

SECTION 00.31.26

EXISTING HAZARDOUS MATERIAL INFORMATION

00.31.26 Existing Hazardous Material Information 00.31.26-Existing Hazardous Material Information

PART 1 - GENERAL

1.1 SECTION INCLUDES

Part 1 - General

1.1 Section Includes

1.2 Related Requirements

1.3 Measurement and Payment

1.4 General

Part 2 - Products (Not Used) Part 3 - Execution (Not Used) --End of Section--

1.2 RELATED REQUIREMENTS

A. Section 00.31.24-Environmental Information

1.3 MEASUREMENT AND PAYMENT

The work performed by the Contractor under this Section shall not be paid for directly but shall be included in the various Bid Items under this Contract.

1.4 GENERAL

A. There are no hazardous material or waste storage, disposal sites, or spill sites identified within the immediate project area.

B. There are biohazardous material waste sites or spill sites identified within the immediate project area. The stormwater from Mexico conveyed northward through the Morley Tunnel to the Nogales

Wash is contaminated with raw sewage so the Arizona Department of Environmental Quality

(ADEQ) has classified the Nogales Wash and Potrero Creek and its tributaries as 303[d] Impaired

Waters. The Contractor shall use caution when handling flows in these streams.

C. The work also involves bypass pumping of raw sewage and working in sewer pipelines and manholes.

PART 2 - PRODUCTS

(Not Used)

PART 3 - EXECUTION

March 31, 2021 Existing Hazardous Material Information

USIBWC RFP 191BWC21R0002 00.31.26-Page 2

March 31, 2021 Geotechnical Data

USIBWC RFP 191BWC21R0002 00.31.32-Page 1

SECTION 00.31.32

GEOTECHNICAL DATA

00.31.32 Geotechnical Data 00.31.32-Geotechnical Data

PART 1 - GENERAL

1.1 SECTION INCLUDES

Part 1 - General

1.1 Section Includes

1.2 Measurement and Payment

1.3 Geotechnical Reports

Part 2 - Products (Not Used) Part 3 - Execution (Not Used) --End of Section--

1.2 MEASUREMENT AND PAYMENT

The work performed by the Contractor under this Section shall not be paid for directly but shall be included in the various Bid Items under this Contract.

1.3 GEOTECHNICAL REPORTS

A. Geotechnical analysis for this project was performed by Terracon Consultants and summarized in their report entitled, " Geotechnical Baseline Report, Rehabilitation of International Outfall

Interceptor, Nogales and Rio Rico, Arizona," dated January 21, 2015.

B. The geotechnical investigation was limited to the section of the alignment that is located along the

Nogales Wash and Union Pacific Railroad (UPRR) from the northwest corner of North Morley

Avenue and East Madison Street to the NIWTP.

C. The data and report are not intended as a representation or warranty of continuity of conditions between soil borings nor of groundwater levels at dates and times other than date and time when measured. The USIBWC neither warrants or guarantees the results of any geotechnical or subsurface investigations as being representative of the site, beyond the actual location of the test specimen(s) nor assumes any responsibility for the manner in which this information may be used or the conclusions reached in utilizing the information contained in these documents. Additional test borings and other exploratory operations may be made by Contractor subsequent to award of the

Contract.

D. Due to the worksite location adjacent to the Nogales Wash and Potrero Creek and its tributaries, groundwater levels may fluctuate, sometimes to extreme levels, based upon time of year and amount of water in the channels. Higher groundwater levels than those shown in the bore logs may occur causing changes in soil saturation and strength.

E. The worksite is adjacent to or within the Nogales Wash and Potrero Creek and its tributaries which are continually flowing throughout the year. Fluvial deposits can change rapidly in type (sand, silt, clay, loam, gravel, rocks, etc.) both horizontally and vertically due to depositional characteristics and channel shifting. Rocks may be present even if not visible on the ground surface.

F. The Contractor is charged with the duty to read and understand the geotechnical data provided, including any data referenced within. The Contractor shall consider all geotechnical information including geotechnical reports, bore logs, and site visits as a whole. The Contractor shall consider

March 31, 2021 Geotechnical Data

USIBWC RFP 191BWC21R0002 00.31.32-Page 2 the limitations of any geotechnical tests performed including the auger size, borehole spacing and location, consistency of borehole data, as well as the frequency of testing, results of testing, and groundwater level at time. The USIBWC will not be responsible for interpretations or conclusions drawn by the Contractor.

PART 2 - PRODUCTS

(Not Used)

PART 3 - EXECUTION

March 31, 2021 Permit Application

USIBWC RFP 191BWC21R0002 00.31.43-Page 1

SECTION 00.31.43

PERMIT APPLICATION

00.31.43 Permit Application 00.31.43-Permit Application

PART 1 - GENERAL

1.1 SECTION INCLUDES

Part 1 - General

1.1 Section Includes

1.2 Reference Standards

1.3 Measurement and Payment

1.4 General

1.5 Work in Waters of the United States

1.6 Work Within Impaired Waters

1.7 Work Within ADOT ROW

1.8 Work Within Santa Cruz County ROW

1.9 Work Within City of Nogales ROW

1.10 Work Within Union Pacific Railroad (UPRR) ROW

1.11 Work Within Temporary Construction Easements (TCE)

1.12 Responsibilities

Part 2 - Products (Not Used) Part 3 - Execution (Not Used) --End of Section--

1.2 REFERENCE STANDARDS

A. Arizona Department of Environmental Quality (ADEQ)

1. Arizona Pollution Discharge Elimination System (AZPDES)

2. AZPDES Construction Activity General Permit 2020

B. Arizona Department of Transportation (ADOT)

1. Highway Encroachment Permit

2. Arizona Department of Transportation Traffic Control Design Guidelines

C. Environmental Protection Agency (EPA)

1. General Construction Permit 2017 (as modified June 2019)

2. National Pollutant Discharge Elimination System (NPDES) Permit Program

D. US Army Corps of Engineers (USACE)

1. Section 404 of Clean Water Act, 33 USC 1251 et seq.

1.3 MEASUREMENT AND PAYMENT

The work performed by the Contractor under this Section shall not be paid for directly but shall be included in the various Bid Items under this Contract.

1.4 GENERAL

Prior to the beginning of construction, the Contractor shall be responsible for researching, coordinating, obtaining, and paying all applicable fees for all permits required by Federal, state, and local entities, USIBWC RFP 191BWC21R0002 00.31.43-Page 2 including, but not limited to, a specific or general stormwater permit prepared in accordance with the requirements of Stormwater Pollution Prevention Plan (SWPPP) and Arizona Pollution Discharge

Elimination System (AZPDES) Construction Activity General Permit 2020.

1.5 WORK IN WATERS OF THE UNITED STATES

A. For work in the right of way, USIBWC will obtain any required Section 404 permits from the US

Army Corps of Engineers (USACE) before work begins.

B. This project requires work to be conducted in the vicinity of Potrero Creek and Nogales Wash, both of which are considered Waters of the United States. Possible work within these waters includes cleaning of the existing pipe, installation of the CIPP liner, rehabilitation of manholes, installation of bypass piping, and construction of access road crossings. No construction activity will occur outside the designated work areas.

C. This project is operating under USACE Nationwide Permit (NWP) No. 12, Utility Line Activities.

The Contractor shall comply with all permit conditions specified in NWP No. 12. The Contractor shall be responsible for not exceeding the Pre-Construction Notification (PCN) thresholds listed for

NWP No. 12. If necessary, Contractor shall notify the COR seven (7) days in advance of any anticipated work activities that may exceed the PCN thresholds.

D. The Contractor must adhere to all agreements, mitigation plans, and standard best management practices required by these permits.

E. If Contractor initiated changes in the construction method result in impacts to waters of the US, the

Contractor shall have sole responsibility to obtain all required new or revised permits and shall adhere to all agreements, mitigation plans, and standard best management practices required by these permits.

1.6 WORK WITHIN IMPAIRED WATERS

A. Both Potrero Creek and Nogales Wash, as well as their tributaries, are listed by ADEQ as 303[d]

Impaired Waters. USIBWC will be responsible for obtaining a Clean Water Act 401 Water Quality

Certification (WQC) issued by ADEQ. The Contractor shall comply with all requirements and conditions listed in the 401 WQC.

1.7 WORK WITHIN ADOT ROW

A. The Contractor shall be responsible for obtaining a Highway Encroachment Permit from ADOT for any work conducted within the ROW of any state highways, such as State Route 19 (N. Grand

Avenue). Contractor shall comply with all provisions of the permit.

1.8 WORK WITHIN SANTA CRUZ COUNTY ROW

A. Contractor shall notify the Santa Cruz County Flood Control District of any work conducted within any drainage facilities, including the Nogales Wash and Potrero Creek. In addition, the Contractor shall be responsible for obtaining a Floodplain Use Permit from Santa Cruz County for any ground disturbance required within a drainage facility. Contractor shall comply with all provisions of the permit.

B. Contractor shall be responsible for obtaining a ROW Use Permit from Santa Cruz County for any work conducted within the ROW of any county roads. Contractor shall comply with all provisions of the permit.

USIBWC RFP 191BWC21R0002 00.31.43-Page 3

C. Vehicle and equipment access are permitted onto the open concrete floodway or Nogales Wash.

Contractor shall protect the concrete lining from damage and be cautious of the weight and number of vehicles or equipment accessing the Wash.