Addendum 1~22.pdf

Rev 4-21-20

February 27, 2025

ADDENDUM # 1

Carmen Smith Load Bank Station Construction Work

ITB # 25-025-PW

This addendum modifies the bidding document(s) for work only to the extent indicated herein. All other areas not specifically mentioned or affected by this addendum shall remain in full force. This addendum shall be added as a part of the original bidding document and shall become part of the work required.

QUESTION & ANSWER (EWEB responses are in blue.)

1. The project description on the Formal Invitation to Bid differs from the Summary of Work in the Load

Bank Specs. Can you clarify?

Yes we can. The summary of work in Section 01 11 00 of the project specifications includes a description of all work for the overall project, including work being bid under this ITB 25-025-PW. (In other words, the project work under this ITB only includes a portion of the work shown in the project plans discussed in 01-11-00.) Please refer to the list of Bid Items in Section 5 of the Bid Form and the list of Bid Item descriptions located in Attachment A to this addendum for the scope of work included under this ITB 25-025-PW. All other work items shown in the project plans and Section 01 11 00 that is not included in the Bid Items and Bid Item descriptions, are to be performed by others under separate contract.

2. Where does the fiber conduit start and stop?

Limits and scope of fiber conduit installation are described in bid item #10 shown in Attachment A to this Addendum. Descriptions for all bid items are included in this attachment, including limits, aggregate standards, and incidentals.

3. How much of the excavated materials will be embanked?

Approximately 800 cubic yards (neat) of excavated material will be embanked on-site. Embankment shall be select native per 31 23 23. Excess spoils shall be transported to the Peggy Creek waste site and placed in accordance with the plan and details shown in Attachment C to this Addendum.

4. Is there any fiber optic work?

There is no fiber optic installation (e.g. MIRO ducting, blowing fiber strands, terminations, equipment, etc.) or communications included in this work. The work does include the installation of fiber optic conduit outside of the Load Bank pad. See Item #10 in the list of bid item descriptions in Attachment A to this Addendum for a more detailed description of limits and incidentals.

5. Is machine control acceptable?

Machine control is acceptable for mass excavation and embankment. A CAD file will be provided for this purpose after contract approval. See Item #2 description in Attachment A to this Addendum for a more detailed description of construction staking.

6. Will EWEB crews perform the water tie ins and work on existing water system?

Yes, EWEB water crews will perform disinfection and tie-ins for temporary and permanent waterlines per the EWEB Water Distribution Design and Construction Standards located in Attachment D to this Addendum.

7. Does the ditch rehabilitation include check dams?

No, ditch rehabilitation does not include the re-installation of check dams. See Item #12 description in Attachment A to this Addendum for a more detailed description of work.

8. Is the ditch rehabilitation built to detail on Sheet C50?

Yes, ditch rehabilitation is required to be performed per Detail 3 on Sheet C50. The “V” shaped section shown for subgrade/geotextile prep is not mandatory and a flat bottom excavation will be allowed. The top of the rock shall be “V” shaped, as detailed to concentrate flows. See Item #12 description in Attachment A to this Addendum for a more detailed description of work.

9. Is there any prep work needed at the Peggy Creek waste area?

Yes, tree removal is required, as shown in Attachment C to this Addendum. Stump shall be cut flush to the ground and left in place. Cut trees shall be transported to a location outside of the Willamette National Forest boundary consistent with the requirements of clearing and grubbing in Section 31 23

13. No other preparatory work is required. Excess excavated material can be placed on existing ground, as shown in USFS details in Attachment C to this Addendum. No post processing or screening of material is required. No maximum lift thickness or compaction is required.

10. Are there any structures for demolition?

Yes. Known structures include the potable waterline, abandoned concrete septic tank, septic drain field, and galvanized irrigation piping. Man-made material shall be disposed or recycled off-site in a manner consistent with waste disposal regulations. PCC rubble, AC, aggregate, and other inert geologic material may be disposed at the Peggy Creek site shown in Attachment C to this Addendum consistent with specifications for general excavation.

11. Are boulders or rock considered extra work?

Yes. The contractor is expected to mobilize heavy equipment large enough to efficiently excavate and grade the site, within the load rating limits of the Carmen access bridge shown in Attachment B of this Addendum.

Formations of solid rock, located in finished cut, that cannot be ripped by industry standard means (D8 single ripper) shall be considered extra work, as directed by the Owner. Extra work shall be paid on a fixed price or time and materials basis as determined by the owner.

Boulders in excess of the limits of loading and transportation equipment shall be considered extra work to post process, as directed by the Owner.

12. Is there a spec for the “granular backfill” under the transformer?

Yes, the specification is located in Section 31 23 23. Granular backfill does not need to meet ODOT standards. Local sources are acceptable, provided a consistent product can be produced meeting the minimum performance specifications.

13. Is there a spec for the ditch rehab aggregate?

Yes, ditch rehab aggregate shall be consistent with the Aggregate Base Course described in specification Section 32 11 23 and the ODOT specification in Bid Item #12 description in Attachment A of this Addenda. See Bid item #12 description for a more detailed description of work.

14. Are the stumps from all trees removed?

No, only a portion of stumps have been removed with the prior tree removal. All stumps located in the grading limits shall be removed by the contractor, in accordance with clearing and grubbing specification 31 23 13. An exact count of stumps is not provided. A series of photos showing the existing conditions is shown in Attachment F of this Addendum. The site is currently free of snow as of January 25, 2025. The contractor will verify the number of stumps to be removed during clearing and grubbing.

15. Does the entire site need to be cleared and grubbed?

No, only the limits shown for grading and demolition shall be cleared and grubbed. The existing tree clearing limits exceed the design grading limits. This was done purposefully to establish a safety buffer.

16. Is there any rocking of the pad or roadway?

No, rocking of the pad and access road (with exception of the construction entrance) is not included in this scope of work. A separate high voltage electrical contractor (under separate contract) will be mobilized immediately following the site preparation work. The electrical contractor will perform all excavation for foundations/conduits, grounding and electrical in addition to stabilizing the pad and access road. All work not included in the bid item descriptions is performed under separate contract by others.

17. Does the pad need to be hydroseeded?

No, the pad and access road do not need to be hydroseeded. See Item #13 description of Attachment A of this Addendum for a more detailed description of work.

18. Can the turnout by the highway be used to stage trucks?

Yes, a portion of the turnout located adjacent to the Carmen access road may be used to actively stage trucks in routing/rotation, as directed by the Owner. The area shall not be used for passive staging, laydown, or storage.

19. Will there be trucking off Smith Ridge to manage?

Yes, trucking may be encountered from Smith Ridge and will need to be accommodated in traffic control. Owner will do everything possible to route trucks to Hwy 126 via Ikenick Snow Park and limit heavy truck traffic adjacent to the work zone.

20. Is construction water available?

Yes, a limited amount of construction water is available at the Carmen Campus. Water is limited and available in small quantities (2,000 -3,000 gallons per day), as determined by the Owner. Contractor should make arrangements to obtain construction water from other sources if daily demand exceeds availability, as shown above. Water for dust control will be required as needed.

21. Can water be drafted at Trail Bridge reservoir?

Yes, construction water may be drafted at Trail Bridge reservoir. Contractor is required to obtain any necessary temporary water rights and conform to any required regulations (locations, fish screens, etc.). Contractor to provide all equipment necessary to pump or draft water into water trucks or buffaloes.

22. Are there any permits needed for the work?

Yes, contractor is required to obtain a 1200-C (or CN) construction stormwater prevention permit from the Oregon Department of Environment Quilty (ODEQ) Western Region Office located in Eugene, OR. Contractor is also required to obtain a plumbing permit from the Linn County Building Department for the construction of the waterline improvements. The contractor is also responsible for requesting inspections and other permit requirements. The contractor is required to obtain a temporary water right if they choose to pull construction water from Trail Bridge Reservoir (or any others) or waters of Oregon state.

23. Has all of the clearing been completed on-site or are there more trees that will need to be removed?

The vast majority of tree removal and clearing at the Load Bank site has been completed under separate contract. Only a small clump of young trees needs to be removed. See pictures in Attachment F of this Addendum. No other tree felling, tipping, or removal is required at the Load Bank Site. Trees are required to be removed at the Peggy Creek water areas, as shown in Attachment C of this Addendum. Trees shall be disposed at a site located outside the Willamette National Forest Boundary in a manner consistent with Section 21 23 13 of the project specifications.

24. Is there a Geotechnical report available?

Yes, the project geotechnical data report is located in Appendix G of this Addendum.

25. Is there a chance that the bid opening date can be delayed until the snow melts off the site? The specifications make the Contractor responsible for familiarity with the site but if we can’t see what is under the snow, how do we familiarize ourselves with the site?

The Owner cannot postpone the bid due date due to an accelerated completion schedule, however, the site is free of any snow as of February 25, 2025 and all existing conditions are exposed. Photos of the site taken on February 25, 2025 are included in Appendix F of this Addendum for reference.

Photos of the existing Pressure Reduction valve and vault are shown in Appendix E of this Addendum for reference. Contractor is responsible for verifying all existing conditions.

26. Has a 1200C permit been obtained for this project since the work area has already been disturbed?

No, a 1200-C permit has not been obtained. The tree removal work was considered forestry operations and not construction related ground disturbance, so the work was not governed by the 1200-C program. The site preparation is construction and will disturb more than 1 acre. The Contractor is responsible for obtaining a 1200-C (or CN) permit from the ODEQ Western Region Office prior to ground disturbing activities. The erosion control plan and specifications may be used to support this process.

27. Is the chain link fence around the project intended to be permanent or temporary?

The chain link fence is not part of this work. The fence will be permanent but will be constructed under separate contract by others.

28. Does the Engineer need a field office for this project? If so, are there minimum requirements?

No, a field office is not required by the Owner or Engineer.

29. Are there hazardous materials on-site that we need to be concerned with removing?

No, no hazardous materials are known to exist onsite. Any potential future abetment of hazardous materials found through inadvertent discovery will be extra work.

30. In areas of over-excavation, the specs say that the Engineer will direct the placement of Granular Fill, CLSM, Concrete Fill or other materials in areas of over-excavation. Because of the range of price for each of these materials, can you clarify which material the Engineer will want?

The work requires “granular fill” as the required minimum performance specification and we would expect to see that material due to the logical price point compared to other materials. See Item #9 description of this Addendum for a more detailed description of work. PCC or CLSM are not required but would be accepted as an alternate material.

31. If a Boulder is found to be within the limits of the subgrade, is the removal of the boulder and the backfilling of the void over-excavation?

Boulders encountered, where firmly embedded and squarely protruding, in the limits of the subgrade shall be removed and backfilled as extra work. Backfill material shall be select native, placed in lifts, and compacted as directed by the Owner. Bounders encountered, firmly embedded and squarely protruding, in the subgrade for the transformer overexcitation and backfill (Bid item #9 of Attachment A of this Addendum and shown on section A of the project plans, page C30) shall be left in place and backfilled per plan and specifications under Bid item #9.

32. Looking at the Fiber Conduit on Sheet D-37728-EO1 that references us to Sheet D-37728-E40, what are the limits of work for those installing the conduit? There are several on E40.

See Bid item description #10 of Attachment A of this Addendum for limits, incidental, and standards.

33. Who did the tree clearing for this project site?

The site was cleared in 2023 and 2024 by Suulutaaq, Inc under separate contract.

34. It looks like we start the fiber optic conduit installation at an existing vault and take it up the hill to the road crossing. Are we supplying the pull box at the road crossing or is that something the Owner is providing? How far onto the site are we taking the conduit? The plans send us to E40 and there are a lot of conduits on this page.

PULL BOX 3 shown on Sheet E1 of the project plans is part of this work and Contractor provided, see Bid item #10 description of Attachment A of this Addendum for more details and to review the installation limits.

35. The Raceway List (starting on page 69 of Drawings - Volume 2) and the Circuit List (Drawings - Volume

3) are provided, in addition to the plans. We are not seeing a reference to these lists anywhere, and according to the left header on these pages, they belong to a specification section we don't see in the spec book for this project.

You may disregard them as they are not part of this contract and not relevant to the site prep work. Only the plans and specifications that governed the work described in the site prep contract have been released. The electrical package will be advertised for bid next month with all information and references for consideration.

CLOSING DATE AND TIME

Remains unchanged.

ATTACHMENTS TO THIS ADDENDUM #1: A,B,C,D,E,F,G

This addendum constitutes a MATERIAL CHANGE to the bid. ITS RECEIPT BY THE BIDDER IS TO BE ACKNOWLEDGED BY A SIGNATURE AND RETURNING A COPY OF THE ADDENDUM WITH ITS RESPONSE

OR BY CIRCLING THE ADDENDUM NUMBER IN THE APPROPRIATE AREA ON THE BID FORM.

Addendum prepared by:

Sandra Hahn, Purchasing Contact

The undersigned hereby acknowledges receipt of this Addendum and agrees to be bound by the conditions therein.

Company Name: ________________________________

Signature: ______________________________________

Date __________________________

End of Addendum

Description of Load Bank Site Preparation Bid Items

Provide all labor, equipment, and materials for work described under specific bid items below.

Work included in the site preparation improvements is limited to items described below. All work shall conform to the General Conditions, project plans, and specifications. Qualify control shall the be responsibility of the Contractor, Owner shall be responsible for quality assurance field testing. All other improvements shown in the project plans and specifications are not part of this bid and will be performed by others after the completion of the site preparation improvement work.

#1 Mobilization – Work includes operations and preparatory work necessary to become ready to perform the work. Work includes moving personnel, supplies and incidentals to the project site.

Establishing facilitates necessary for the work. Performing other work or operations or incur costs as necessary before beginning work. Mobilization shall be paid in accordance with the following:

• When 5% is earned, 50% of the amount of mobilization will be paid

• When 10% is earned, 100% of the amount of mobilization will be paid

#2 Construction Staking – Provide field staking representing the lines and grades shown on the construction plans. Waterline and conduit alignments shall also be staked through traditional means. Alignment, fittings, valves, vaults, and vertical/horizontal deflections shall be staked.

Contractor may elect to use machine control for clearing, grubbing, and mass excavation. Design CAD files will be provided to the Contractor for this purpose.

#3 Erosion Control – Install and maintain erosion control measures for the life of the project in conformance with project plans and specifications. This item also includes application and issuance of a 1200-C (or CN) permit from the Western Region office of the Oregon Department of Environmental Quality in Eugene, OR. Cost of permitting is incidental to unit item cost as will not be paid separately. No measurement of quantity will be made and work shall be paid on progress and duration.

#4 Traffic Control – This work consists of maintaining equipment, signage, and labor to accommodate traffic through the life of the project in accordance with the project specifications.

No measurement of quantity will be made and work shall be paid on progress and duration.

#5 Clearing and Grubbing – Removing and disposing of vegetation, stumps and buried matter within the grading and trenching limits in accordance with project plans and specifications. Work also includes the removal of a small clump of young trees shown in existing conditions site photos located in Attachment F. Work also includes the removal of trees at the Peggy Creek waste area as shown in Attachment C. Disposal of trees shall be outside the Willamette National Forest Boundary consistent with the project specifications. Any disposal tipping fees shall be considered incidental to the unit price and not paid separately. No measurement of quantity will be made and work shall be paid on progress.

#5 Demolition – This work includes removing and disposing of any man-made materials shown within the clearing and demolition limits limits and cleaning up areas they occupy in accordance with project plans and specifications. Any disposal tipping fees shall be considered incidental to the unit price and not paid separately. No measurement of quantity will be made and work shall be paid on progress.

ATTACHMENT A

#6 Waterline Temporary Bypass – Construct and maintain a temporary waterline bypass (complete) to Carmen campus and Carmen Power Plant. Work also includes the preparation of a temporary bypass plan for review and approval by the Owner. Photos of the existing pressure reduction valve and vault are shown in Attachment E for reference. No measurement of quantity will be made and work shall be paid on progress.

#7 4” Potable Waterline – Construct permanent 4” waterline (complete) to the lines and grades shown on the project plans in accordance with EWEB Water Distribution Design and Construction Standards shown in attachment D. Work includes excavation, backfill, compaction, valving, fittings, appurtenances, relocation of PRV & vault, sawcuts, AC patching (including bituminous saw joint sealing or preparatory tack coat), flushing, pressure testing, and other EWEB Water Department requirements. In addition to the project specifications pipe bedding and trench backfill shall be ¾”-0 base rock meeting the minimum Oregon Department of Transportation specifications for Class B pipe zone bedding and trench backfill. In addition to the project specifications, asphalt concrete shall meet the minimum specifications for ½” or ¾” Level 2 Dense Graded HMAC. The work also includes the application and issuance of a plumbing permit from the Linn County, OR Building Department. Cost of permitting is incidental to unit item cost as will not be paid separately. No measurement of quantity will be made and work shall be paid on progress.

#8 General Excavation – Work includes excavation, embankment construction, grading, leveling, compaction, and other earth moving work to the lines and grades for prepared subgrade as shown in the project plans. Work also includes loading, transporting, and placing surplus material at the Peggy Creek waste area as show in Attachment C in accordance with project specifications. No measurement of quantity will be made and work shall be paid on progress.

#9 Transformer Over Excavation and Granular Backfill – Work includes over excavation of unsuitable in-situ material and placement of granular subgrade underneath the proposed transformer isolation pad to the dimensions and grades shown in the project plans (Sheet C30) in accordance with project specifications (section 31-32-32-2.03). Work also includes compaction and the placement of subgrade geotextile and aggregate base as shown on Sheet C-30 of the project plan consistent with project specifications. In addition to the project specifications, heavy aggregate shall meet Oregon Department of Transportation specifications for roadway aggregate.

The aggregate used for trench rehabilitation would be acceptable. No measurement of quantity will be made and work shall be paid on progress.

#10 Fiber Conduit – Construction of the fiber conduit (complete) in accordance with the plans and specifications. Fiber conduit is collocated in a portion of the 4” waterline trench. Work includes excavation, backfill, compaction, pull box, appurtenances, sawcuts, and AC patching (including bituminous saw joint sealing or preparatory tack coat) in accordance with project plans and specifications. In addition to the project specifications, pipe bedding and trench backfill shall be ¾”-0 base rock meeting the minimum Oregon Department of Transportation specifications for Class B pipe zone bedding and trench backfill. In addition to the project specifications, asphalt concrete shall meet the minimum specifications for ½” or ¾” Level 2 Dense Graded HMAC.

The limits of the fiber duct installation shall be from existing EWEB vault C346 shown on Sheet E01 to the relocated PRV vault as shown on Sheet C10 of the project plan. The work shall include the conduit penetration of vault C346 including grouting and repair. The conduit shall be swept up at the relocated PRV vault and protrude no less than 4 feet above finished subgrade. The fiber optic conduit shall follow the alignment shown on Sheet E01 and includes the installation of the pull box labeled “FO UG PULL BOX # CLB_PLNT_PBX#”. The fiber optic conduit and 4” waterline are co-located in a shared trench from PULL BOX 3 to the relocated PRV vault. The fiber conduit extension from the PRV vault to the switch gear building shown on Sheet E40 will be performed by others under sperate contract. No measurement of quantity will be made and work shall be paid on progress.

#11 24” Culvert – Construction of 24” RCP culvert (complete) in accordance with plans and specifications. Work includes excavation, backfill, assembly, compaction, and rip rap apron protection. In addition to the project specifications, pipe bedding and trench backfill shall be ¾”-0 base rock meeting the minimum Oregon Department of Transportation specifications for Class B pipe zone bedding and backfill. In addition to the project specifications, Rip Rap shall also meet the Rip Rap standards of Oregon Department of Transportation. No measurement of quantity will be made and work shall be paid on progress.

#12 Roadside Ditch Rehabilitation – Rehabilitation of roadside ditch in accordance with the limits shown on Sheet C04 and Detail 3 on Sheet C50 of the project plans. In addition to the project specifications, surfacing course aggregate shall be meet the standards of the Oregon Department of Transportation. No measurement of quantity will be made and work shall be paid on progress.

#13 Site Stabilization (Hydroseeding) – Work includes hydroseeding of all exposed soils in accordance with project specifications. The subgrade for Load Bank pad and access road shall not be hydroseeded in expectation of subsequent electrical installation by others. Seed mixes shall conform to US Forest service standards. No measurement of quantity will be made and work shall be paid on progress.

Oregon Department of Transportation

Technical Services Branch Bridge Engineering Section

Local Agency Bridge Load Rating

Posting Summary Sheet

Local Agency: EWEB

NBIS Bridge Number: 18750 Date: 5/21/2021

Truck Inventory Operating Posting Required

HS Equivalent HS 9 HS 11 N/A

HL-93 (36 Ton) 15.4 Tons 20.0 Tons N/A

Type 3 (25 Ton) N/A 42.7 Tons NO

Type 3S2 (40 Ton) N/A 66.4 Tons NO

Type 3-3 (40 Ton) N/A 66.0 Tons NO

Type SU4 (27 Ton) N/A 41.0 Tons NO

Type SU5 (31 Ton) N/A 42.7 Tons NO

Type SU6 (34.75 Ton) N/A 43.4 Tons NO

Type SU7 (38.75 Ton) N/A 44.5 Tons NO

OR-CTP-2A (52.75 Ton) N/A 79.6 Tons N/A

OR-CTP-2B (52.75 Ton) N/A 79.1 Tons N/A

OR-CTP-3 (49 Ton) N/A 60.7 Tons N/A

OR-STP-3 (60.25 Ton) N/A 63.2 Tons N/A

OR-STP-4A (49.5 Ton) N/A 54.9 Tons N/A

OR-STP-4B (92.5 Ton) N/A 85.1 Tons N/A

OR-STP-4C (75.25 Ton) N/A 56.4 Tons N/A

OR-STP-4D (81.25 Ton) N/A 65.0 Tons N/A

OR-STP-4E (129 Ton) N/A 101.9 Tons N/A

OR-STP-5BW (102 Ton) N/A 86.7 Tons N/A

ATTACHMENT B

%&''(�)*&&+�,-./&�01/& ATTACHMENT C

ew2947 Ellipse ew2947 Callout Peggy Creek Geologic Waste Site See Grading Plan ew2947 Text Box Approximately 7 Miles to Load Bank Site ew2947 Arrow

10 FIR

32 COTTONWOOD

30 FIR

28 FIR

14 FIR

36 FIR

16 FIR

14 FIR

30 COTTONWOOD

24 FIR

30 FIR

38 FIR

12 FIR

16 CEDAR

10 FIR

36 COTTONWOOD

8 COTTONWOOD

12 ALDER

ALDER DULICATE

36 COTTONWOOD

26 COTTONWOOD

P POST TELEPHONE NETWORK

10 FIR

14 FIR

TWIN 10 FIR

18 FIR

24 COTTONWOOD

14 FIR

22 CEDAR

12 MAPLE

10 FIR

12 COTTONWOOD

18 FIR18 FIR

12 ALDER

TWIN 12 MAPLE

40 COTTONWOOD

14 FIR

16 ALDER

22 HEMLOCK

14 CEDAR

14 HEMLOCK

12 MAPLE

14 MAPLE

14 ALDER

MAPLE CLUMP

14 FIR

18 FIR

18 MAPLE

MAPLE CLUMP

12 ALDER

16 FIR

16 FIR

14 FIR

24 FIR

14 FIR

ALDER CLUMP 18 MAPLE

18 COTTONWOOD

12 FIR

10 FIR

12 HEMLOCK

12 HEMLOCK

24 HEMLOCK

24 HEMLOCK

36 CEDAR 32 CEDAR

36 CEDAR

12 COTTONWOOD

12 COTTONWOOD

18 COTTONWOOD

30 COTTONWOOD

18 COTTONWOOD

30 COTTONWOOD

30 MAPLE

30 COTTONWOOD

TWIN ALDER

22 COTTONWOOD

18 HEMLOCK

30 COTTONWOOD

PEGGY CREEK ROAD

FIR

E

LIN

E

(TR

E E S

R E

M O

V E D

PR

EL

IM

IN

A

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1746 1

FUNC BY CHK APP

DES

DWN

EWEB WORK ORDER NO.

DATE:

REV DATE DWN CHK APP

DWG NO:

REV

A B C D E F G H I J K L M N

STD

STANDARDS CHECK

EWEB

PROJECT SHEET NO:

SCALE:

REVISION DESCRIPTION

LINE IS 2 INCHES

AT FULL SIZE

(IF NOT 2" - SCALE ACCORDINGLY)

REV NO.

JANUARY 2024

1901058

GENERATION SYSTEMS

AS SHOWN

NMW

N

30 60 90

1"=30'

CIVIL

MJB

MJB

CARMEN-SMITH PROJECT

NMW

CMS

JLP

XXXX

PEGGY CREEK STOCKPILE

ALTERNATIVE GRADING PLAN

Fill: 16,964.9 cu yd

STOCKPILE VOLUME

ATTACHMENT C

MAIOSIC

Line

MAIOSIC

Line

MAIOSIC

Callout

REMOVE TREE, TYP OF 4

MAIOSIC

Line

MAIOSIC

Line

MAIOSIC

Line

MAIOSIC

Line

MAIOSIC

Line

MAIOSIC

Line

ATTACHMENT C

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Water Distribution

Design and Construction Standards

EUGENE WATER & ELECTRIC BOARD

Effective date: _ April, 25 2017

First edition approved by Water Standards Committee on April, 25 2017

This edition approved by Water Standards Committee on April, 25 2017

ATTACHMENT D

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Preface

This document outlines how to plan, design and construct improvements to EWEB’s water distribution system. These standards and procedures have been developed to provide consistency in the design and construction of new distribution system improvements as well as provide a clear outline of the expectations and responsibilities of development driven work. This manual does not cover work to

EWEB’s transmission, storage, or pumping systems but is intended to cover the majority of distribution system improvements that arise from multi-lot subdivisions and other development proposals requiring improvements to EWEB’s water distributions system.

For more information, forms, and current fees please visit http://www.eweb.org . To request more information or to schedule a pre-design consultation meeting please contact EWEB Water Engineering at the contact below. Staff will generally respond to requests within 3 business days. Please provide as much detail as possible about the location and scope of the proposed development

Email: waterengineeringtechnicians@eweb.org

Phone: 541-685-7377

Water service installation or modification requests may be placed directly through EWEB’s Building and

Renovation Services:

Phone 541-685-7000

E-mail: building-renovationservices@eweb.org http://www.eweb.org/ mailto:waterengineeringtechnicians@eweb.org

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Table of Contents

SECTION 1. PROJECT DELIVERY REQUIREMENTS

SECTION 1.1 GENERAL REQUIREMENTS

1.1.1 Purpose

1.1.2 Revisions

1.1.3 Engineering Policy

1.1.4 Joint Trench

1.1.5 Water Service Outside of EWEB’s Service Area

1.1.6 EWEB Responsibility

1.1.7 Work on EWEB’s Live System

1.1.8 Errors and Omissions

1.1.9 Construction Standards

SECTION 1.2 DESIGN AND CONSTRUCTION PROCESS

1.2.1 Introduction

1.2.2 Typical Process to Design and Construct Water Improvements

1.2.3 Submittals

1.2.4 Preconstruction Conference

1.2.5 Inspection

1.2.6 Substantial Completion and Warranty Period

1.2.7 Final Acceptance

1.2.8 Closeout

SECTION 1.3 INSPECTION REQUIREMENTS

1.3.1 GENERAL

1.3.2 INSPECTION

1.3.3 SAMPLES AND TESTS

1.3.4 Field changes

SECTION 1.4 DRAWING REQUIREMENTS AND DRAFTING STANDARDS

1.4.1 Drafting Standards

1.4.2 Electronic Submittal Standards

1.4.3 Record Drawings

SECTION 2. TECHNICAL REQUIREMENTS

SECTION 2.1 DESIGN CRITERIA

2.1.1 Reference Documents

2.1.2 Hydraulic Capacity

2.1.3 Pipeline Layout

2.1.4 Standard Pipe Sizes

2.1.5 Obsolete Pipe Sizes

2.1.6 Joint Trenching

2.1.7 Cased Crossings

2.1.8 Connections to Existing Mains

2.1.9 Water Quality

2.1.10 Materials

2.1.11 Easements

2.1.12 Permits

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2.1.13 Protection of Existing Facilities

2.1.14 Utility Coordination

2.1.15 Safety

2.1.16 Water Services

2.1.17 Water Quality Stations

2.1.18 Air Releases

SECTION 2.2 – EXCAVATION AND BACKFILL

2.2.1 GENERAL

2.2.2 Materials

2.2.3 Execution

SECTION 2.3 - SURFACE RESTORATION

2.3.1 General

2.3.2 MATERIALS

2.3.3 Execution

SECTION 2.4 – DISTRIBUTION WATER MAINS

2.4.1 General

2.4.2 Materials

2.4.3 Execution

SECTION 2.5 - VALVES

2.5.1 General

2.5.2 Materials

2.5.3 Execution

SECTION 2.6 – FIRE HYDRANTS

2.6.1 General

2.6.2 Materials

2.6.3 Execution

SECTION 2.7 – SERVICES AND METERS

2.7.1 General

2.7.2 Materials

2.7.3 Execution

SECTION 2.8 REQUIRED FORMS

SECTION 3. STANDARD DETAILS

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Definitions

Board The body of elected officials of the Eugene Water & Electric Board

City The city of Eugene

Contractor A person or legal entity that has entered in an agreement with an owner or developer to construct water system improvements.

County Lane County

Design Engineer The engineer in responsible charge of designing the water system improvements, who must be registered in the State of Oregon.

Designer Registered Professional Engineer responsible for the design of water infrastructure

Developer The person or entity legally responsible for the development of land.

Domestic service: A service that supplies water to be used by residents of a house or building for domestic needs.

EWEB Eugene Water & Electric Board

EWEB Project

Engineer

EWEB’s Water Engineering Supervisor, or his/her authorized representative.

Financial

Guarantee

A bond or irrevocable letter of credit guaranteeing work will be properly constructed, inspected, and accepted by EWEB pursuant to ORS 92.090

Fire service: A service used exclusively for supplying a residential fire sprinkler.

Inspector The person employed by EWEB to observe construction and enforce

EWEB’s Water System Standards and proper construction of water system improvements.

Irrigation service A service used exclusively for irrigation or landscaping.

Jurisdictional

Authority

The agency with jurisdiction over the right of way where work will occur

(City of Eugene, Lane County, or the Oregon Department of

Transportation)

Long service: A service installed on the opposite side of the street as the water main line.

Long Side The side of a street opposite of the side a water main is installed.

Owner The person or entity who possesses legal ownership of the land affected by the improvements.

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Plans Construction drawings that show the location, type, dimensions and details of the work to be performed

Point of connection

The point at which EWEB’s distribution system ends and the customer owned piping begins. It is dependent on the location of the water main, whether a meter is part of the service, the layout of the service, type of service, and valving. If a valve is included:

Short service A service installed on the same side of the street as the water main Line.

Short Side The side of the street that a water main is installed in.

Standard Details Detail drawings showing specific installation details for water system components.

Standards The Eugene Water & Electric Board’s Water Distribution System Design and Construction Standards

Subdivision An area or a tract of land to be subdivided for development

System Connection The physical connection of new distribution piping to EWEB’s live distribution system performed by EWEB crews.

Temporary service A service that is installed to supply water for a period not to exceed one year. The water service is intended to supply water for construction, irrigation to establish landscaping, or transitory events that require water service or other similar needs. Backflow prevention is required on all temporary services.

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Acronyms and Abbreviations

Note: When references to the following capitalized abbreviations are made, they refer to the most current versions of Specifications, Standards or Methods of the respective association or agency.

ANSI American National Standards Institute

ASTM American Society for Testing and Materials

AWWA American Water Works Association

BFV Butterfly Valve

BO Blowoff

CAD Computer Aided Drafting

CARV Combination Air/Vacuum Release Valve

DI Ductile Iron

EWEB Eugene Water & Electric Board

FLG Flange

FPS Feet Per Second

GPM Gallons per Minute

GV Gate Valve

ISO Insurance Services Office

LCOG Lane Council of Governments

MJ Mechanical Joint (fitting)

NSF NSF International (formerly National Sanitation Foundation)

OAR Oregon Administrative Rules

ODOT Oregon Department of Transportation

ORS Oregon Revised Statutes

PSI Pounds per Square Inch

PVC Polyvinyl Chloride

NFPA National Fire Protection Association

PE Plain End (pipe), Polyethylene

PPM Parts Per Million

PRV Pressure Reducing Valve

PSI Pounds per Square Inch

PUE Public Utility Easement

RPBPD Reduced Pressure Backflow Prevention Device

UL Underwriter's Laboratories, Inc.

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SECTION 1. PROJECT DELIVERY REQUIREMENTS

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SECTION 1.1 GENERAL REQUIREMENTS

1.1.1 PURPOSE

These Water Distribution Design and Construction Standards include the procedures, requirements, and technical specifications for the design and construction of improvements within EWEB’s water distribution system. Unless otherwise specified or approved, these standards shall govern the design and construction of all EWEB water distribution design projects.

While the goal of these standards is to provide a minimum level of quality and standardization, they are not intended to limit creative or innovative designs which could result in better quality and/or cost savings. Deviations from these standards must be approved in writing by EWEB’s Water Engineering

Supervisor.

1.1.2 REVISIONS

This document is intended to be a working document that will be updated regularly as methods, materials, and standards evolve. EWEB may revise these Standards at any time without prior notification. Each revision will be dated with the effective date. It is the responsibility of each holder of these standards to verify that they have the latest revised copy.

1.1.3 ENGINEERING POLICY

All plans for water system improvements must be prepared, stamped, and signed by a registered professional Civil Engineer licensed in the State of Oregon. It is the policy of EWEB that development driven projects be privately engineered in accordance with the standards herein and submitted for approval. EWEB will be responsible for the design and construction of transmission, storage, and pumping systems.

1.1.4 JOINT TRENCH

If required, the design shall incorporate joint trench construction options with underground utilities that includes electric, fiber optic, telephone, and cable television.

1.1.5 WATER SERVICE OUTSIDE OF EWEB’S SERVICE AREA

EWEB provides Water Service to customers within the city limits of Eugene, Mahlon Sweet Airport, Lane

Community College, and within dissolved water districts. Extensions of Water Service to potential

Customers outside the city limits of Eugene may be subject to city council approval of extension of

Water Service.

1.1.6 EWEB RESPONSIBILITY

EWEB will provide the following information if available:

Location and size of existing mains

Location of existing valves and fire hydrants

Location of existing services

Approximate water pressure range in the connecting system

Planning information for future sizing of water mains

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EWEB Drafting Requirements

Joint Trenching Requirements, if applicable

1.1.7 WORK ON EWEB’S LIVE SYSTEM

Contractors shall maintain a 5 foot minimum distance from EWEB’s water system during construction whenever practicable. Only EWEB personnel may operate valves, tap, or otherwise work on the existing water distribution system.

1.1.8 ERRORS AND OMISSIONS

If errors or omissions are discovered on the approved plans, EWEB reserves the right to immediately revoke the plan approval and stop permitted work. It will be up to the Project Engineer to demonstrate how issues have been resolved and submit revised drawings for approval as directed by EWEB.

1.1.9 CONSTRUCTION STANDARDS

Construction standards are outlined in Section 2, Technical Requirements, and Section 3, Standard

Details, of this manual.

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SECTION 1.2 DESIGN AND CONSTRUCTION PROCESS

1.2.1 INTRODUCTION

Developers of new commercial and residential subdivisions are expected to design and construct the public water mains and appurtenances within the limits of the subdivision. The worksheets and forms necessary to determine the appropriate fees and financial guarantee amount are included on EWEB’s developer webpage http://www.eweb.org. This section outlines the procedures and requirements for privately designing and constructing water system improvements within EWEB’s service area boundary and water districts managed by EWEB.

The following sections outline:

Typical Process to Design and Construct Water Improvements

Submittals

Preconstruction Conference

Substantial Completion and Warranty Period

Final Acceptance

Closeout

1.2.2 TYPICAL PROCESS TO DESIGN AND CONSTRUCT WATER IMPROVEMENTS

Table 1: Design and Construction Process Outline

REVIEW PROCESS TYPICAL TIMEFRAME

Pre-design Consultation: After developer submits a Pre-Design

Consultation Meeting Request Form, EWEB will meet with the

Design Engineer/Developer to discuss water availability, minimum water system improvements, and other planning level details as necessary. An attempt will be made to identify special circumstances and necessary offsite improvements that could affect the timeframe or overall cost of the project.

Meeting will generally be scheduled within 15 business days after submittal of Pre-design Consultation

Request Form.

Plan Review Fee, 50% and 90% Plan Reviews: After submittal of the Plans Review Request Form and applicable plan review fee, EWEB will perform two reviews of the plans at approximately 50% and 90% completion. One pdf copy shall be submitted clearly indicating what submittal they are (i.e. 50%, 90%). Plans will be returned as incomplete if they are not drawn in compliance with the EWEB drafting and design standards

Completeness review will be done within 10 business days. If plans are not complete they will not be reviewed and will be returned. If plans are complete they will be redlined and available within 15 business days.

http://www.eweb.org/

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Final Plan Approval, Inspection/ System Connection Fee, and

Financial Guarantee: Developer submits a .pdf copy of the plans for approval along with the inspection/connection fee and financial guarantee. EWEB will return a .pdf of approved plans electronically.

10 business days after receipt of all materials, approved plans and water availability letter will be provided to the City.

Submittals: Submit to EWEB for review and approval prior to beginning work. No materials shall be installed without an approved submittal

10 business days

Preconstruction Conference: Design Engineer shall schedule a preconstruction conference with EWEB prior to beginning work.

Provide 5 business days minimum notice

Substantial Completion and Warranty Period: After completion of distribution system improvements and successful pressure testing, Developer requests Substantial

Completion from EWEB. EWEB will issue a substantial completion letter establishing the beginning of the 1 year warranty period. EWEB will inspect the work and issue contractor a punch list of remaining work to be completed.

Substantial Completion letter and punchlist issued within 10 business days of notice.

Final Acceptance: The project will be accepted by EWEB after all punch list items are completed, as-constructed plans are submitted and approved, all easements are recorded, and a breakdown of project costs is submitted. NO SERVICES WILL BE

SOLD UNTIL FINAL ACCEPTANCE IS ISSUED.

EWEB will issue a final acceptance letter within 10 business days of all required materials being submitted.

Closeout: Financial guarantee can be released after the 1 year warranty period has been successfully completed. Developer must issue a written request for release after the warranty period is completed.

Financial Guarantee will be released within 10 business days after developer requests release.

(A) Pre-Design Consultation

To determine if there are any potential issues or any offsite improvements needed, applicants are encouraged to request a pre-design consultation. To request the meeting, applicants must complete and submit a Pre-Design Consultation Request Form that contains basic information about the project and the development. EWEB will not respond to any questions about the project prior to this meeting. There is no fee for the initial meeting, but larger and/or more complicated projects will require an “Engineering Agreement” for EWEB to recoup costs in excess of three hours (most projects will require no more than 2 hours of staff research time plus 1 hour of staff time for the meeting). The meetings will generally be held at an EWEB facility.

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(B) 50% and 90% Plan Review

When the design engineer has prepared subdivision water plans that meet minimum drafting and engineering standards, the design engineer may submit the plans to EWEB for review along with the Plans Review Request Form and applicable plan review fee. The preferred method of payment is a check mailed to:

Eugene Water & Electric Board

Water Engineering, Attn Plan Review Fee

PO box 10148, Eugene OR 97440.

However, with prior arrangements the fee can be paid via EWEB’s customer service department using alternate payment methods. Plans will not be reviewed and EWEB staff will not respond to questions until the plan review fee is received.

The design engineer shall submit plans in pdf format meeting EWEB’s minimum electronic submission standards outlined in section 3.2. Review comments will generally be provided as an electronic markup and e-mailed to the Design Engineer. Hydraulic calculations, geotechnical reports, Fire Marshal review, and other pertinent information shall be submitted with the drawings.

At each stage in the review process, final comments will be made available within 15 business days. For more complicated projects, the design engineer will be notified if the review timeframe will exceed the standard 15 business day turnaround after EWEB completes a completeness review of the submittal.

Reviews will generally be organized as follows:

Completeness/ Minimum standards check

Drafting Standards (section 1.3.1)

Electronic Submission Standards (section 1.3.2)

Design Completeness (Section 2.1)

If EWEB determines that the plans do not conform to EWEB’s minimum drafting and design standards or are illegible, they will not be distributed for review. The design engineer will be notified of the deficiencies within 10 business days of receipt of the plans. A transmittal form will be included with the returned plans indicating the deficiencies with the plans.

(C) Final Plan Submittal, Inspection/ System Connection Fee, Financial Guarantee, and

Agreement.

When the 90% review comments have been incorporated, the Design Engineer may submit final plans for approval. Submit final drawings in AutoCAD .dwg or .dwf format accompanied with a signed .pdf file. See Section 1.3.2 for electronic submission requirements. Final sealed hydraulic calculations, geotechnical reports, and other pertinent information shall be submitted at this time.

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Prior to final plan approval the developer must pay the Inspection/System Connection Fee and provide a Financial Guarantee for the work to be performed. Any required easements shall be shown on the recorded plat before final plans are approved. Approved plans will be made available within 10 business days of receiving all materials and a Water Availability Letter will be sent to the City of Eugene. Plan approvals are valid for 1 year from the date of receipt of the inspection/connection fee. Plans must be resubmitted for approval after one year or more has elapsed without beginning construction on the water system.

1.2.3 SUBMITTALS

Prior to beginning work, the design engineer shall submit all of the required submittals. All products used in EWEB’s distribution system shall meet the specifications outlined in this manual. Provide EWEB with the following items for approval.

Table 2: Table of Required Submittals

Item Required Submittal

Ductile Iron Pipe Manufacturer, Pressure Class, and Certificate of Standards Compliance

Fittings Manufacturer, Model, and Certificate of Standards Compliance

Joint Restraint Manufacturer, Model, and Certificate of Standards Compliance

Gate Valves Manufacturer, Model, and Certificate of Standards Compliance

Butterfly Valves Manufacturer, Model, and Certificate of Standards Compliance

Fire Hydrants Manufacturer, Model, and Certificate of Standards Compliance

Service Pipe/Fittings Manufacturer, Model

Meter Boxes Manufacturer, Model

Backfill Material Source, Material Size, Gradation, and Moisture Density Curves

Fire Marshal Plan

Review

Documentation from Fire Marshal was provided Fire Hydrant Locations for review.

Permits Copies of all applicable city and county permits applicable to the work.

Schedule Submit a copy of the proposed work schedule. Provide regular updates so EWEB can plan required inspections.

Traffic Control

Permit

Submit a copy of the approved traffic control permit. Ensure permit covers any necessary EWEB work.

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EWEB may also require additional submittals that may be relevant to a particular project.

Review of submittals does not relieve the contractor from having to follow EWEB’s design standards and specifications. EWEB is not liable for any errors or omissions in the submittals. No fabrication, ordering of materials, or other work shall commence until submittals are reviewed and approved by EWEB. EWEB will inspect all materials in the field to ensure they are consistent with the approved submittals.

1.2.4 PRECONSTRUCTION CONFERENCE

The design engineer shall schedule a preconstruction conference with EWEB prior to beginning any work. EWEB shall be provided a minimum of 5 business days of notice.

1.2.5 INSPECTION

Contractor shall schedule regular EWEB inspections in accordance with Section 1.3 of this manual.

1.2.6 SUBSTANTIAL COMPLETION AND WARRANTY PERIOD

When the work is sufficiently complete to place the improvements into service, EWEB will certify a project as Substantially Complete. Substantial Completion will not be issued until a successful pressure test has been performed on the system. Upon Substantial Completion, EWEB will schedule the work to disinfect and tie the new system into the distribution system.

The project will be inspected again approximately 1 year after substantial completion. Should any deficiencies and/ or failures arise during the warranty period, the developer will be given the opportunity to correct them. If deficiencies are not corrected in a timely matter they will be corrected by EWEB at developer’s expense.

EWEB will prepare and provide the contractor with a punch list. The failure to include any items on the punch list does not alter the responsibility of the contractor to complete all Work in accordance with the design plans and EWEB standards. The Contractor shall complete all punch list items within 30 days unless the contractor makes alternate arrangements with EWEB.

1.2.7 FINAL ACCEPTANCE

EWEB will issue the Final Acceptance letter and accept ownership of the water system after all work has been completed that was called for in the plans and specifications including a successful pressure test. Upon Final Acceptance, the total financial guarantee can be reduced to

20% of the value of the improvements or $10,000 whichever is greater.

Before EWEB issues a final acceptance letter the following must be provided:

Copies of recorded easements…