W912EF19B0003_Amendment_0002.pdf

AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT

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

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

30-105-04EXCEPTION TO SF 30

APPROVED BY OIRM 11-84

STANDARD FORM 30 (Rev. 10-83) Prescribed by GSA

FAR (48 CFR) 53.243

The purpose of this amendment is to revise the specif ications. See Summary of Changes and attachments.

1. CONTRACT ID CODE PAGE OF PAGES

1 2

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

16C. DATE SIGNED

BY 25-Mar-2019

16B. UNITED STATES OF AMERICA15C. DATE SIGNED15B. CONTRACTOR/OFFEROR

(Signature of Contracting Officer)(Signature of person authorized to sign)

8. NAME AND ADDRESS OF CONTRACTOR (No., Street, County, State and Zip Code) X W912EF19B0003

X 9B. DATED (SEE ITEM 11)

28-Feb-2019

10B. DATED (SEE ITEM 13)

9A. AMENDMENT OF SOLICITATION NO.

11. THIS ITEM ONLY APPLIES TO AMENDMENTS OF SOLICITATIONS

X The above numbered solicitation is amended as set forth in Item 14. The hour and date specified for receipt of Offer is extended, X is not extended.

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

(a) By completing Items 8 and 15, and returning 1 copies of the amendment; (b) By acknowledging receipt of this amendment on each copy of the offer submitted;

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

12. ACCOUNTING AND APPROPRIATION DATA (If required)

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

IT MODIFIES THE CONTRACT/ORDER NO. AS DESCRIBED IN ITEM 14.

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

CONTRACT ORDER NO. IN ITEM 10A.

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

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

D. OTHER (Specify type of modification and authority)

E. IMPORTANT: Contractor is not, is required to sign this document and return copies to the issuing office.

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

10A. MOD. OF CONTRACT/ORDER NO.

2. AMENDMENT/MODIFICATION NO. 5. PROJECT NO.(If applicable)

6. ISSUED BY

3. EFFECTIVE DATE

25-Mar-2019

CODE

USAED, WALLA WALLA - CONTRACTING DIV.

CYNTHIA H JACOBSEN

201 N. THIRD AVE

WALLA WALLA WA 99362-1876

W912EF 7. ADMINISTERED BY (If other than item 6)

4. REQUISITION/PURCHASE REQ. NO.

CODE

See Item 6

FACILITY CODECODE

EMAIL:TEL:

W912EF19B0003

SECTION SF 30 BLOCK 14 CONTINUATION PAGE

SUMMARY OF CHANGES

Summary of changes for Amend - 0002

McNary Drainage Sump Oil Skimmer

W912EF19B0003

SPECIFICATIONS

SECTION 01 35 10.00 28, DIVING

Revised the following paragraphs:

o 1.2 ANTICIPATED DIVING ENVIRONMENT

SECTION 02 24 10.02 28, DEWATERING

Revised the following paragraphs:

o 1.6 DEWATERING EQUIPMENT

- See revised specification for details.

(End of Summary of Changes)

McNar y Dr ai nage Sump Oi l Ski mmer W912EF19B0003 Amend-0002

SECTI ON TABLE OF CONTENTS

DI VI SI ON 01 - GENERAL REQUI REMENTS

SECTI ON 01 35 10. 00 28

DIVING

PART 1 GENERAL

1. 1 GENERAL

1. 2 ANTI CI PATED DI VI NG ENVI RONMENT

1. 3 DI VE OPERATI ON NOTI FI CATI ON

1. 4 DRAI NAGE SUMP DEWATERI NG

1. 5 REFERENCES

1. 6 SUBMI TTALS

1. 7 DI VI NG SUBMI TTALS

1. 8 DI VE PLAN

1. 9 LOCKOUT/ TAGOUT ( LOTO) - SAFE CLEARANCE OR HAZARDOUS ENERGY CONTROL

( HEC) PROCEDURES

1. 10 SPECI AL SAFETY REQUI REMENTS

PART 2 PRODUCTS

2. 1 UNDERWATER VI DEO

PART 3 EXECUTI ON

3. 1 DI VE TEAM COMPOSI TI ON AND DI VE EQUI PMENT

3. 2 CONTRACTOR FURNI SHED DI VI NG SUPPORT EQUI PMENT

3. 3 CONTRACTOR SPECI AL EQUI PMENT

- - End of Sect i on Tabl e of Cont ent s - -

SECTI ON 01 35 10. 00 28 - Page 1 g4edddca Line

SECTI ON 01 35 10. 00 28

DIVING

PART 1 GENERAL

1. 1 GENERAL

Di vi ng wi l l be al l owed as an accept abl e means t o accompl i sh t he r equi r ement s of t hi s cont r act . The Cont r act or may choose t o dewat er t he wor k ar ea by ot her means i n pl ace of di v i ng. Thi s sect i on cover s t he gener al r equi r ement s f or cont r act di v i ng oper at i ons t o be per f or med as speci f i ed wi t hi n t hi s cont r act . Per f or m di v i ng i n accor dance wi t h t he l at est edi t i on of t he U. S. Ar my Cor ps of Engi neer s Saf et y and Heal t h Requi r ement s Manual EM 385- 1- 1, Sect i on 30: DI VI NG OPERATI ONS i n accor dance wi t h Cl ause ACCI DENT PREVENTI ON ( 52. 236- 13) , Wal l a Wal l a Di st r i c t ' s Saf et y Manual NWW OM 385- 1- 1 ( Appendi x I ) , and el ement s of t he f ol l owi ng references: 29 CFR 1910, Subpar t T and t he l at est edi t i on of NAVSEA SS521- AG- PRO- 010 U. S. Navy Di v i ng Manual , Vol ume 1 i ncl usi ve of al l ot her r ef er ences l i s t ed t her ei n. Al l di v i ng oper at i ons shal l be consi der ed i nci dent al t o t he wor k speci f i ed el sewher e her ei n. No separ at e payment f or di v i ng wor k wi l l be made.

1. 2 ANTI CI PATED DI VI NG ENVI RONMENT

The dr ai nage sump wi l l not be dewat er ed f ul l y and may r equi r e di v i ng suppor t t o compl et e const r uct i on. The di v i ng envi r onment wi t hi n t he sump consi st s of appr oxi mat el y a 12' by 19.5' ar ea i n appr oxi mat el y 25 f eet of wat er ; exact wat er dept h may var y. Wat er t emper at ur e wi l l be l ess t han 40 degr ees Fahr enhei t ( hot wat er di ve sui t s r equi r ed when wat er t emper at ur es ar e bel ow 40 degr ees F) . Access t o t he dr ai nage sump i s t hr ough a hat ch on el evat i on 235. 5. Di ver s wi l l be r equi r ed t o l ower t hemsel ves t o t he sur f ace wat er el evat i on t hr ough t hi s hat ch. wi t h a di f f er ent means of access. The means of access l ower i ng di ver s wi l l be Cont r act or pr ovi ded and r equi r e conf or mance wi t h t he f al l pr ot ect i on pr ogr am i n sect i on 01 35 29. 10 28 GOVERNMENTAL SAFETY REQUI REMENTS. A f l oat i ng pl at f or m or scaffolding wi l l be r equi r ed f or di ver use i nsi de t he sump. Dur i ng di v i ng, dr ai nage wat er wi l l be ent er i ng t he dr ai nage sump ar ea t hr ough dr ai n pi pi ng. Thi s dr ai n pi pi ng i s l ocat ed above t he wat er sur f ace el evat i on and may i nt er r upt di v i ng oper at i ons.

1. 3 DI VE OPERATI ON NOTI FI CATI ON

Not i f y COR a mi ni mum of 2- weeks pr i or t o t he st ar t of di ve oper at i ons.

Not i f i cat i on wi l l be r equi r ed t o ensur e t he dr ai nage sump i s mai nt ai ned at a consi st ent l evel . Al l di ve submi t t al s must be submi t t ed f or r evi ew 30 wor ki ng days pr i or t o commencement of di ve wor k. Di ve wor k may not commence unt i l al l di ve submi t t al s have been r evi ewed and accept ed by t he Di st r i c t Di ve Coor di nat or .

1. 4 DRAI NAGE SUMP DEWATERI NG

The Gover nment wi l l mai nt ai n t he wat er l evel wi t hi n t he dr ai nage sump t o bet ween maxi mum and mi ni mum l evel s. At t i mes when t he wat er l evel r eaches

SECTI ON 01 35 10. 00 28 - Page 2 maxi mum l evel t he Gover nment wi l l pump wat er out of t he dr ai nage sump.

Dur i ng t hi s t i me t he Cont r act or wi l l be r equi r ed t o exi t t he wat er .

1. 5 REFERENCES

The publ i cat i ons l i s t ed bel ow f or m a par t of t hi s speci f i cat i on t o t he ext ent r ef er enced. The publ i cat i ons ar e r ef er r ed t o wi t hi n t he t ext by t he basi c desi gnat i on onl y.

U. S. ARMY CORPS OF ENGI NEERS ( USACE)

NWW OM 385- 1- 1 Wal l a Wal l a Di st r i c t ' s Saf et y Manual , Appendi x I Di v i ng oper at i ons. Avai l abl e f r om t he Wal l a Wal l a Di st r i c t Di ve Coor di nat or . ( 509- 527- 7120)

EM 385- 1- 1 Saf et y and Heal t h Requi r ement s Manual

Compl y wi t h t he cur r ent edi t i on and al l changes post ed on t he web as of t he ef f ect i ve dat e of t hi s sol i c i t at i on.

U. S. NATI ONAL ARCHI VES AND RECORDS ADMI NI STRATI ON ( NARA)

29 CFR 1910 Occupat i onal Saf et y and Heal t h St andar ds

U. S. NAVAL SEA SYSTEMS COMMAND ( NAVSEA)

NAVSEA SS521- AG- PRO- 010 ( 2008, r ev. 6) U. S. Navy Di v i ng Manual

1. 6 SUBMITTALS

Gover nment appr oval i s r equi r ed f or submi t t al s wi t h a " G" desi gnat i on;

submi t t al s havi ng an " I " desi gnat i on ar e f or i nf or mat i on onl y. A desi gnat i on f ol l owi ng t he " G" or " I " desi gnat i on i dent i f i es t he of f i ce t hat wi l l r evi ew t he submi t t al f or t he Gover nment . Submi t t he f ol l owi ng i n accor dance wi t h SECTI ON 01 33 00 SUBMI TTAL PROCEDURES:

SD- 01 Pr econst r uct i on Submi t t al s

Saf e Pr act i ces Manual ; G DDC

Emer gency Management Pl an; G DDC

Di ve Per sonnel Qual i f i cat i ons; G DDC

Di ve St at i on Equi pment Cer t i f i cat i ons and Cer t i f i cat es f or Ai r Quality ; G DDC

Di ve Pl an; G DDC

Act i v i t y Hazar d Anal ysi s ( AHA) ; G DDC

Saf e Cl ear ance; G DDC

SD- 06 Test Repor t s

Under wat er Vi deo; I C

SECTI ON 01 35 10. 00 28 - Page 3

1. 7 DI VI NG SUBMI TTALS

Submi t t he f ol l owi ng:

a. Saf e Pr act i ces Manual as r equi r ed f or di v i ng i n EM 385- 1- 1.

b. Emer gency Management Pl an as r equi r ed f or di v i ng i n EM 385- 1- 1.

c. Di ve per sonnel qual i f i cat i ons as r equi r ed f or di v i ng i n EM 385- 1- 1.

d. Di ve St at i on Equi pment Cer t i f i cat i ons and Cer t i f i cat es f or Ai r Quality as as r equi r ed f or di v i ng i n EM 385- 1- 1.

1. 8 DI VE PLAN

Submi t t he Di ve Pl an and j ob- speci f i c Act i v i t y Hazar d Anal ysi s ( AHA) t o t he Cont r act i ng Of f i cer f or appr oval 30 cal endar days pr i or t o pl anned di ve dat e. See SECTI ON 01 35 29. 10 28 SAFETY AND OCCUPATI ONAL HEALTH REQUI REMENTS par agr aph ACTI VI TY HAZARD ANALYSI S ( AHA) f or addi t i onal i nf or mat i on. Di v i ng wi l l not be al l owed wi t hout an appr oved Di ve Pl an.

1. 9 LOCKOUT/ TAGOUT ( LOTO) - SAFE CLEARANCE OR HAZARDOUS ENERGY CONTROL ( HEC)

PROCEDURES

Submi t a Saf e Cl ear ance pl an f or di v i ng i n accor dance wi t h r equi r ement s i n

SECTION 01 35 29. 10 28 SAFETY AND OCCUPATI ONAL HEALTH REQUI REMENTS

par agr aph LOCKOUT/ TAGOUT ( LOTO) - SAFE CLEARANCE OR HAZARDOUS ENERGY CONTROL

( HEC) PROCEDURES.

1. 10 SPECI AL SAFETY REQUI REMENTS

I n addi t i on t o Saf et y and Heal t h Requi r ement s Manual , EM 385- 1- 1 and NWW OM 385- 1- 1 ( Appendi x I ) , compl y wi t h t he r equi r ement s l i s t ed bel ow.

Par agr aph number s r ef er t o EM 385- 1- 1.

a. EM 385- 1- 1 Sect i on 30 Sur f ace - Suppl i ed Ai r Oper at or s, par agr aph

30. D. 03. Del et e t he f ol l owi ng f r om t he f i r st sent ence: " f or any di ve out s i de t he no- decompr essi on l i mi t s or deeper t han 30m ( 100 f t ) . " A r ecompr essi on chamber shal l be r equi r ed r egar dl ess of t he dept h of di ve.

b. EM 385- 1- 1 Sect i on 30 - Mi xed Gas Di v i ng Oper at i ons. Add t he f ol l owi ng: On a case by case basi s, t he use of up t o 40 per cent Ni t r ox wi l l be al l owed f or di v i ng oper at i ons. As a mi ni mum, t he f ol l owi ng condi t i ons must be met i n or der f or use of Ni t r ox/ mi xed gas t o be appr oved:

( 1) I f NI TROX / mi xed gas di v i ng oper at i ons met hodol ogy i s ut i l i zed, al l di ve t eam member s ( di ve super vi sor , di ver s, chamber oper at or , t i mekeeper , t ender s) must possess NI TROX and / or mi xed gas cer t i f i cat i on f r om a nat i onal l y r ecogni zed or gani zat i on ( NAUI , PADI , TDI , I ANTD, et c. ) . Copi es of t hese cer t i f i cat i ons shal l be submi t t ed f or r evi ew pr i or t o t he di ve.

( 2) A NI TROX / mi xed gas cer t i f i ed COE di ve saf et y i nspect or ( DSI ) shal l be on s i t e at al l t i mes dur i ng NI TROX / mi xed gas di v i ng operations.

( 3) The Di ve Pl an shal l det ai l exact l y what Ni t r ox/ mi xed gas di ve

SECTI ON 01 35 10. 00 28 - Page 4 wor k wi l l be accompl i shed i ncl udi ng expect ed dept hs and bot t om times.

( 4) The Di ve Pl an and Act i v i t y Hazar d Anal ysi s shal l descr i be pr ocedur es f or saf e use of Ni t r ox/ mi xed gas and shal l be appr oved pr i or t o any Ni t r ox di ves.

( 5) Ni t r ox/ mi xed gas di ves shal l be per f or med usi ng t he Equi val ent Ai r Dept h wi t h st andar d U. S. Navy ai r di ve t abl es t o det er mi ne di ve dur at i on i ncl udi ng r epet i t i ve di ves. Oxygen exposur e at dept h shal l al so be checked and t he most conser vat i ve di ve t i me used. Di ve comput er s shal l not be used t o det er mi ne al l owabl e di ve t i mes.

PART 2 PRODUCTS

2. 1 UNDERWATER VI DEO

Fur ni sh an under wat er v i deo as a r ecor d of const r uct i on. To be consi der ed accept abl e by t he Cont r act i ng Of f i cer , al l f eat ur es bei ng demonst r at ed by v i deo shal l be c l ear l y di scer nabl e. I ncor por at e dat e, t i me, di ver ( or ROV oper at or ) , and t ask descr i pt i on i n t he nar r at i ve of t he v i deo or by some ot her appr oved means. The f i nal v i deo pr oduct shal l be on DVD f or mat . Al l v i deo f i nal pr oduct s shal l be pr ovi ded t o t he Cont r act i ng Of f i cer as soon as pr act i cal upon compl et i on of t he appl i cabl e phase of wor k.

PART 3 EXECUTI ON

3. 1 DI VE TEAM COMPOSI TI ON AND DI VE EQUI PMENT

The di ve t eam shal l at a mi ni mum, be compr i sed of f i ve member s; a di ve super vi sor , a di ver , a st andby di ver , t ender and t i mekeeper . No scuba di v i ng wi l l be per mi t t ed unl ess appr oved by t he Di st r i c t Di ve Coor di nat or ( DDC) . I n addi t i on t o t he di ve t eam per sonnel addr essed i n t he above r ef er ences, mi ni mum r equi r ed chamber cr ew per sonnel shal l be pr ovi ded as di v i ng oper at i ons di ct at e. I f a cr ane i s used, i t must be oper at ed by a cer t i f i ed cr ane oper at or who shal l not be i ncl uded as a member of t he di ve t eam. Onl y sur f ace- suppl i ed ai r di v i ng equi pment wi t h 2- way voi ce communi cat i on shal l be used f or di ver s and st andby di ver s. An i ndependent r eser ve ai r syst em ( bai l out bot t l e) f or al l di ver s i s r equi r ed as speci f i ed by EM 385- 1- 1, par agr aph 30, D, E, F. Pr ovi de a mi ni mum of 50 cf ( cubi c f eet ) r eser ve ai r suppl y f or each di ver . As a mi ni mum, al l di ver sur f ace ai r suppl y compr essor s, t anks, hel met s, and ot her r el at ed equi pment must compl y wi t h t he r equi r ement s of EM 385- 1- 1, par agr aph 30, D, E, F. The di ver and t he chamber oper at or wi l l r emai n i n t he v i c i ni t y ( wi t hi n 30 mi nut es) of t he di ve chamber f or at l east t wo ( 2) hour s f ol l owi ng di ves out s i de t he no decompr essi on l i mi t .

3. 2 CONTRACTOR FURNI SHED DI VI NG SUPPORT EQUI PMENT

A dual l ock r ecompr essi on chamber capabl e of r ecompr essi on t o a mi ni mum of 165 f eet of sal t wat er ( FSW) shal l be r equi r ed t o be on- si t e and avai l abl e f or i mmedi at e use. Suf f i c i ent on- si t e chamber f ac i l i t i es shal l be f ur ni shed t o ser vi ce mul t i pl e di ver s wor ki ng s i mul t aneousl y on di f f er i ng r ecompr essi on schedul es, i f necessar y. A di ve vessel or a f l oat i ng or suspended di ve pl at f or m may be f ur ni shed f r om whi ch di v i ng oper at i ons wi l l be st aged. I f a di ve suppor t vessel i s used, no l i ve boat i ng wi l l be per mi t t ed. Appr oved man- basket ( s) shal l be pr ovi ded f or each wor ki ng di ver as needed. Al l necessar y t op- si de equi pment shal l be f ur ni shed t hat ar e

SECTI ON 01 35 10. 00 28 - Page 5 needed t o accompl i sh al l r equi r ed di ve wor k as wel l as al l necessar y under wat er hand and power t ool s.

3. 3 CONTRACTOR SPECI AL EQUI PMENT

Under wat er col or v i deo camer a wi t h appr opr i at e l i ght i ng appar at us t hat i s appr opr i at e f or t he di ve, t opsi de v i deo moni t or and DVD r ecor der wi l l be r equi r ed on al l di ves.

- - End of Sect i on - -

SECTI ON 01 35 10. 00 28 - Page 6

SECTI ON TABLE OF CONTENTS

DI VI SI ON 02 - EXI STI NG CONDI TI ONS

SECTI ON 02 24 10. 10 28

DEWATERING

PART 1 GENERAL

1. 1 SCOPE

1. 2 REFERENCES

1. 3 SUBMI TTALS

1. 4 DEWATERI NG OF WORK AREAS

1. 4. 1 Leakage

1. 5 DEWATERI NG PLAN

1. 6 DEWATERI NG EQUI PMENT

PART 2 PRODUCTS ( Not Used)

PART 3 EXECUTI ON ( Not Used)

- - End of Sect i on Tabl e of Cont ent s - -

SECTI ON 02 24 10. 02 28 - Page 1

SECTI ON 02 24 10. 10 28

DEWATERING

PART 1 GENERAL

1. 1 SCOPE

These r equi r ement s ar e i n addi t i on t o t hose cont ai ned i n ot her sect i ons or i ndi cat ed on t he Cont r act dr awi ngs. The Cont r act or shal l f ur ni sh al l necessar y l abor and mat er i al s f or dewat er i ng t he wor k ar eas as i ndi cat ed.

Di v i ng may be used as an al t er nat i ve t o dewat er i ng t he wor k ar ea but i s not r equi r ed. Al l di v i ng wi l l meet t he r equi r ement s of sect i on 01 35 10. 00 28

DIVING.

1. 2 REFERENCES

The publ i cat i ons l i s t ed bel ow f or m a par t of t hi s sect i on t o t he ext ent r ef er enced. The publ i cat i ons ar e r ef er r ed t o wi t hi n t he t ext by t he basi c desi gnat i on onl y.

U. S. ARMY CORPS OF ENGI NEERS ( USACE)

EM 385- 1- 1 Saf et y and Heal t h Requi r ement s Manual

Compl y wi t h t he cur r ent edi t i on and al l changes post ed on t he web as of t he ef f ect i ve dat e of t hi s sol i c i t at i on.

1. 3 SUBMITTALS

Gover nment appr oval i s r equi r ed f or submi t t al s wi t h a " G" desi gnat i on;

submi t t al s havi ng an " I " desi gnat i on ar e f or i nf or mat i on onl y. When used, a desi gnat i on f ol l owi ng t he " G" or " I " desi gnat i on i dent i f i es t he of f i ce t hat wi l l r evi ew t he submi t t al f or t he Gover nment . Submi t t he f ol l owi ng i n accor dance wi t h SECTI ON 01 33 00 SUBMI TTAL PROCEDURES:

SD- 01 Pr econst r uct i on Submi t t al s

Dewat er i ng Pl an; G ME

SD- 03 Pr oduct Dat a

Dewat er i ng Equi pment ; G ME

SD- 08 Manuf act ur er ' s I nst r uct i ons

Dewat er i ng Equi pment ; G ME

1. 4 DEWATERI NG OF WORK AREAS

Dewat er t he dr ai nage sump and ot her wor k ar eas as r equi r ed t o al l ow f or compl et i on of t he wor k. Per f or m dewat er i ng i n accor dance wi t h t he

SECTI ON 02 24 10. 02 28 - Page 2 following:

a. Per f or m dewat er i ng i n accor dance wi t h t he appl i cabl e r equi r ement s in EM 385- 1- 1 and Sect i on 01 35 29. 10 28 GOVERNMENTAL SAFETY REQUI REMENTS. Al l dewat er i ng oper at i ons ar e consi der ed i nci dent al t o t he wor k. No separ at e payment f or dewat er i ng wi l l be made.

b. The dr ai nage and t he unwat er i ng sumps and pumps wi l l r emai n oper at i onal when t he Cont r act or i s per f or mi ng t he wor k. The oper at i onal wat er l evel i n t he dr ai nage sump wi l l be bet ween EL. 172. 5 t o 177. 4.

c. For wor k per f or med r equi r i ng t he wat er l evel t o be bel ow EL. 172. 5 wi l l r equi r e t he Cont r act or t o pr ovi de dewat er i ng pumps and equi pment .

I n addi t i on, t he dr ai nage sump pumps wi l l r equi r e an out age; coor di nat e any r equest f or t empor ar y out age of t he dr ai nage sump pumps wi t h t he Cont r act i ng Of f i cer Repr esent at i ve at l east 5 wor k i ng days i n advance.

d. Rout e al l wat er r emoved f r om t he dr ai nage sump i nt o t he unwat er i ng sump t hr ough t he access hat ch on el evat i on 235. 5.

e. The Cont r act or ' s dewat er i ng pumps ( not t o exceed a t ot al combi ned power usage of 40 HP) may be connect ed t o CQ01 on el evat i on 254. 0, ot her wi se, t he Cont r act or must pr ovi de t hei r own dewat er i ng pump power sour ce. CQ01 has 480 vol t s, 3 phase, 60 Hz power . I n or der t o pr event f l oodi ng of t he wor k ar ea i n t he dr ai nage sump , adequat e pumpi ng and/ or dr ai n capaci t y t o handl e al l i nf l ows must be mai nt ai ned at al l times.

f . Al l dewat er i ng equi pment and mat er i al s must be i nst al l ed i n such a way as t o mi ni mi ze i mpact s on McNar y Pr oj ect Oper at i ng Per sonnel nor mal activities.

1. 4. 1 Leakage

The Cont r act or shoul d expect up t o 600 gpm of l eakage. The Cont r act or i s r esponsi bl e f or t he car e and di ver si on of t hi s l eakage t o pr event f l oodi ng. Leakage i n excess of t hi s must be r out ed t o t he unwat er i ng sump t hr ough t he access manhol e on el evat i on 235. 5. The Cont r act or shal l pr ovi de cont i nuous super vi s i on and/ or an al ar m syst em whi l e t hi s wor k i s i n pr ogr ess t o al er t McNar y Pr oj ect Oper at i ng Per sonnel of wat er dept hs i n excess of 2 f eet . I f , i n t he cour se of t hi s wor k, excess wat er dept hs ar e det ect ed, t he Cont r act or shal l t ake i mmedi at e cor r ect i ve act i on.

1. 5 DEWATERI NG PLAN

Submi t a Dewat er i ng Pl an pr i or t o commencement of on- si t e wor k. The pl an shal l pr ovi de a det ai l ed descr i pt i on of each st ep r equi r ed t o per f or m t he wor k, t he or der t he wor k i s t o be per f or med, and i nf or mat i on on t he equi pment t o be used t o per f or m t he wor k. I ncl ude t he pr oposed met hods f or connect i ng t o t he exi st i ng dr ai ns and i nst al l at i on of t empor ar y dams and/ or wat er di ver si on st r uct ur es. Al so i ncl ude t he pr oposed met hod f or r emovi ng t he t empor ar y dams and/ or di ver si on st r uct ur es f r om t he s i t e.

1. 6 DEWATERI NG EQUI PMENT

Equi pment and mat er i al s used f or t empor ar y dewat er i ng of t he dr ai nage sump

SECTI ON 02 24 10. 02 28 - Page 3 wi l l be t ur ned over t o t he Gover nment upon compl et i on of t he wor k. Prior t o i t s use f or t hi s cont r act , al l equi pment and mat er i al s wi l l be new and i n good wor ki ng condi t i on. Pr ovi de O&M manual s f or dewat er i ng equi pment i n accor dance t o Sect i on 01 78 00. 00 28 CLOSEOUT SUBMI TTALS.

PART 2 PRODUCTS ( Not Used)

PART 3 EXECUTI ON ( Not Used)

SECTI ON 02 24 10. 02 28 - Page 4