Amend 5 - 31 24 00.00 18.pdf

FI RE I SLAND I NLET TO MONTAUK POI NT FI MPCT4

Amendment 05

SECTI ON 31 24 00. 00 18

BEACH FI LL PLACEMENT

PART 1 GENERAL

1. 1 SCOPE

The wor k cover ed by t hi s sect i on consi st s of f ur ni shi ng al l l abor , mat er i al s, and equi pment , and per f or mi ng al l oper at i ons r equi r ed f or r emoval of mat er i al f r om t he desi gnat ed bor r ow ar ea as shown on t he cont r act dr awi ng, conduct i ng bor r ow ar ea pr e- and post - r emoval sur veys, t r anspor t at i on and pl aci ng t he mat er i al as beach f i l l on t he At l ant i c Ocean shor e wi t hi n t he l i mi t s speci f i ed her ei n and shown on t he dr awi ngs, conduct i ng pr e- and post - pl acement beach condi t i on sur veys and gr ab sampl es GSD anal ysi s as speci f i ed.

1. 2 DREDGI NG OF BORROW AREAS

The beach r enour i shment t o be done under t hese speci f i cat i ons wi l l be t he dr edgi ng of t he Bor r ow Ar eas wi t h pl acement of t he dr edged sand al ong t he shor el i ne, as shown on t he cont r act dr awi ngs.

1. 3 SI TE CONDI TI ONS

Bi dder s ar e expect ed t o exami ne t he si t e of t he wor k, i ncl udi ng t he pl acement ar eas and deci de f or t hemsel ves t he condi t i ons af f ect i ng t hei r oper at i ons pr i or t o submi t t i ng t hei r bi ds. See Cont r act Cl ause ent i t l ed:

" SI TE I NVESTI GATI ON AND CONDI TI ONS AFFECTI NG THE WORK" ( FAR 52. 236- 3) .

1. 4 SEDI MENTATI ON PERMI TS

No l ocal gover nment al sedi ment at i on or er osi on cont r ol per mi t s ar e r equi r ed f or t hi s wor k except t hat as r equi r ed i n accor dance wi t h Cont r act Cl ause ent i t l ed: " PERMI TS AND RESPONSI BI LI TI ES" ( FAR 52. 236 7) .

1. 5 SUBMI TTALS

The Cont r act or shal l submi t f or appr oval , by t he Cont r act i ng Of f i cer and/ or hi s Repr esent at i ve, hi s pl an f or devel opment of any cont r act or - f ur ni shed pl acement ar eas or any modi f i cat i on t o t he Gover nment f ur ni shed pl acement ar ea. Thi s pl an shal l show ar eas or por t i ons t her eof t o be used. The pl an shal l al so show t he manner i n whi ch t he dr edged mat er i al wi l l be di st r i but ed i n t he ar eas. Such pl ans shal l be pr ovi ded by t he cont r act or at t he Pr econst r uct i on Conf er ence. I f t he pl an i s not accept ed t he Cont r act or i s t o per f or m t he wor k i n accor dance wi t h t he speci f i cat i ons.

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 not havi ng a " G" 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" 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 . The f ol l owi ng shal l be submi t t ed i n accor dance wi t h Sect i on 01 33 00 SUBMI TTAL PROCEDURES:

SD- 03 Pr oduct Dat a

SECTI ON 31 24 00. 00 18 Page 1

Gr ai n Si ze Di st r i but i on Cur ves of beach f i l l mat er i al af t er pl acement ; G, RO

SD- 11 Cl oseout Submi t t al s

Bef or e and Af t er Beach Fi l l Pl acement Sur veys; G, RO

Bef or e and Af t er Dr edge Sur veys of t he Bor r ow Ar ea; G, RO

1. 6 QUALI TY CONTROL

a. QUALI TY CONTROL: The Cont r act or shal l est abl i sh and mai nt ai n qual i t y cont r ol f or mat er i al pl acement t o assur e compl i ance wi t h cont r act r equi r ement s, and mai nt ai n r ecor ds of t hei r qual i t y cont r ol f or al l const r uct i on oper at i ons, i ncl udi ng but not l i mi t ed t o t he f ol l owi ng:

1) Dr edgi ng, i ncl udi ng sui t abi l i t y of dr edged mat er i al and mani pul at i on and cont r ol of t he dr edge di schar ge.

2) Pl acement of sand f i l l mat er i al , i ncl udi ng cont i nui t y and or der of pl acement ; di st r i but i on of mat er i al and measur es used t o cont r ol l oss of mat er i al .

b. The Cont r act or must have a " NOTI CE TO MARI NERS" publ i shed by t he Coast Guar d 15 days pr i or t o st ar t of wor k and pr ovi de i t t o Cont r act i ng Of f i cer .

c. Pl acement Pl an: The Cont r act or shal l submi t f or appr oval hi s pl acement pl an at t he Pr econst r uct i on Conf er ence ( Sect i on 01 30 00 ADMI NI STRATI VE REQUI REMENTS) . The pl acement pl an shal l i ncl ude t he par t i cul ar s i t e( s) t o be ut i l i zed, al l speci al condi t i ons ( i . e. , NYSDEC, et c. ) speci f i c t o s i t es( s) bei ng used, cont r act or access t o t he s i t e( s) l ocat i ons and cr oss- sect i on of exi st i ng and pr oposed di kes, maxi mum el evat i ons and quant i t i es of pl acement mat er i al f or each si t e, wei r and dr ai nage st r uct ur e l ocat i ons, manner i n whi ch t he dr edged mat er i al wi l l be di st r i but ed i n t he ar eas, et c. Appr oval of t he pl acement pl an by t he Cont r act i ng Of f i cer or hi s r epr esent at i ve i s r equi r ed pr i or t o pl acement s i t e( s) pr epar at i on. The Cont r act or shal l conduct t hei r wor k i n accor dance wi t h t he Pl acement Pl an, however , appr oval of t he pl an f or devel opment of t he pl acement ar ea does not i n any manner r el i eve t he Cont r act or of hi s r esponsi bi l i t y f or t he adequacy of t he desi gn and const r uct i on and dr ai nage f aci l i t i es r equi r ed. I n addi t i on, t he Cont r act or shal l al so submi t at t he pr e- const r uct i on meet i ng, t hei r pl an f or r oad cr ossi ngs of t he di schar ge pi pel i ne. The cont r act or shal l be r esponsi bl e f or secur i ng t he appr opr i at e per mi t s f or any r oad cr ossi ngs of di schar ge pi pel i ne or s i mi l ar act i v i t i es and may not begi n wor k unt i l such per mi t s ar e r ecei ved f r om t he appr opr i at e agenci es.

d. Pr e- Const r uct i on Si t e Vi s i t : Pr i or t o act ual const r uct i on of any pl acement s i t e, t he Cont r act or and t he Cont r act i ng Of f i cer and/ or hi s r epr esent at i ves shal l v i s i t t he s i t e( s) f or t he pur pose of del i neat i ng ar eas of access avoi dance ( pr ot ect i on of exi st i ng dunes, cul t ur al r esour ce and/ or wet l and concer ns) .

e. Const r uct i on/ Mai nt enance of Cont ai nment St r uct ur e. The Cont r act or shal l const r uct al l r et ai ni ng di kes, wast e wei r s and dr ai nage st r uct ur es as ar e necessar y f or conf i ni ng t he dr edged mat er i al and f or cont r ol l i ng pl acement ar ea ef f l uent unt i l accept ance of al l wor k under

SECTI ON 31 24 00. 00 18 Page 2 t he cont r act .

f . Pr ot ect i on of St r uct ur es and Adj acent Ar eas. The cont r act or shal l be r esponsi bl e f or t he mai nt enance, r epai r and st abi l i t y of al l di kes, r oads and st r uct ur es, used by hi m under t he cont r act . The Cont r act or shal l r est or e al l di kes, r oads, and ar eas he di st ur bs t hr ough hi s oper at i ons t o a sat i sf act or y condi t i on, as appr oved by t he Cont r act i ng Of f i cer or hi s r epr esent at i ve, at no addi t i onal cost t o t he Gover nment .

g. Pr ot ect i on of Exi st i ng Dunes and Dune Veget at i on: Exi st i ng dunes and dune veget at i on shal l be undi st ur bed t o t he maxi mum ext ent pr act i cabl e. Li mi t s of exi st i ng dune and dune veget at i on shal l be i dent i f i ed and del i neat ed pr i or t o f i l l pl acement . Li mi t s shal l be coor di nat ed wi t h Suf f ol k Count y, t he l ocal communi t i es wi t hi n t he cont r act l i mi t s, and t he Cont r act i ng Of f i cer . Pi pel i nes and access f or const r uct i on equi pment shal l not cr oss exi st i ng dunes or dune veget at i on except as di r ect ed by t he Cont r act i ng Of f i cer .

h. Pr ot ect i on of Dune Cr ossover s and Resi dent i al St r uct ur es:

1. Por t i on of t he dune under or adj acent t o any el evat ed st r uct ur es shal l be hand f i l l ed t o t he pr oposed f oot pr i nt as shown i n t he cont r act pl ans.

i . I nspect i on of St r uct ur es and Adj acent Ar eas. The Cont r act or shal l i nspect al l di kes, r oads, wast e wei r s, and adj acent ar eas ut i l i zed dur i ng t hi s oper at i on on a dai l y basi s t o assur e t hei r saf et y and st abi l i t y . The Cont r act or shal l i ncl ude t hese i nspect i ons i n hi s dai l y qual i t y cont r ol r epor t . The i nspect i on shal l i ncl ude but not be l i mi t ed t o st r uct ur es, equi pment , saf et y, secur i t y, dr ai nage and seepage.

j . Repor t i ng Requi r ement s. The Cont r act or shal l mai nt ai n a dai l y wr i t t en r ecor d of al l pl acement s i t e oper at i ons. Thi s r equi r ement shal l be made a par t of t he Cont r act or ' s Qual i t y Cont r ol Pl an and each r ecor d shal l be i ncl uded i n t he Cont r act or ' s Qual i t y Cont r ol Repor t .

k. Cont ai nment St r uct ur e Rest or at i on. The Cont r act or shal l r est or e any f eat ur e of any cont ai nment st r uct ur es as r equi r ed t o pr event t he escape of dr edged mat er i al f r om t he pl acement s i t e on t o adj acent ar eas.

l . Cont r ol of Pl acement Ar ea Ef f l uent . The cont r act or shal l moni t or and cont r ol pl acement ar ea condi t i ons and pl acement ef f l uent qual i t y as pr escr i bed i n t hese speci f i cat i ons. The Cont r act or ' s Qual i t y Cont r ol Pl an shal l i dent i f y moni t or i ng r equi r ement s and measur es, whi ch wi l l be t aken t o cont r ol pl acement ar ea condi t i ons t o ensur e ef f l uent qual i t y meet s t he r equi r ement s i dent i f i ed i n t he Sect i on 00 31 24. 01 18 Wat er Qual i t y Cer t i f i cat es.

m. New Yor k St at e Wat er Qual i t y Cer t i f i cat i ons. The cont r act or shal l compl y wi t h al l r equi r ement s i dent i f i ed i n t he NYSDEC Wat er Qual i t y Cer t i f i cat e ( WQC) i ncl udi ng al l speci al condi t i ons. A copy of t he WQC i s i ncl uded i n Sect i on 00 31 24. 01 18 of t hi s speci f i cat i on.

n. Removal of Cont ai nment Ar ea St r uct ur es. Any st r uct ur es ( i . e. , wei r s, pi pel i ne, et c. ) i nst al l ed by t he Cont r act or f or use i n hi s pl acement oper at i ons shal l be r emoved and t he cont r act or shal l r epai r and st abi l i ze al l ar eas af f ect ed by t he r emoval of t hese st r uct ur es as

SECTI ON 31 24 00. 00 18 Page 3 appr oved by t he Cont r act i ng Of f i cer .

o. The cont r act or shal l obt ai n gr ab sampl es of t he pl aced f i l l f r om: t he beach backshor e; edge of ber m; mean hi gh wat er ( MHW) ; and mean l ow wat er ( MLW) . One set of sampl es shal l be t aken ever y 200 f eet al ong t he pl aced f i l l ar ea. A gr ai n s i ze anal ysi s of each sand sampl e wi l l be made usi ng si eve si zes compar abl e t o t he Went wor t h s i ze c l assi f i cat i ons ( shown i n Sect i on 00 31 32. 01 18) and t he r esul t s pl ot t ed on an appr opr i at e cur ve f or mat . The l abor at or y anal ysi s r esul t s and pl ot t ed gr ai n s i ze di st r i but i on cur ves shal l be f ur ni shed wi t h t he Dai l y Const r uct i on Qual i t y Repor t s.

1. 7 REPORTI NG REQUI REMENTS

1. 7. 1 Dai l y Repor t of Oper at i ons

The Cont r act or wi l l , on Eng. For m 27A, be r equi r ed t o pr epar e and mai nt ai n a dai l y r epor t of oper at i ons and i nspect i ons and f ur ni sh copi es t her eof t o t he Cont r act i ng Of f i cer or hi s r epr esent at i ve. Al l t he f or ms pr escr i bed f or t he r equi r ed i nf or mat i on ar e f ound i n Sect i on 00 31 00. 02 18 REPORT OF OPERATI ONS FORM ( Eng For m 27A) - HOPPER DREDGES. Fur t her i nst r uct i ons on t he pr epar at i on of t he r epor t wi l l be f ur ni shed at a pr e- const r uct i on conf er ence. At t ached t o t he f or m, t he Cont r act or shal l submi t a pl an of t he bor r ow ar ea i ndi cat i ng t he l ocat i on, dept h and ext ent of hi s dr edgi ng oper at i ons f or t hat day.

1. 7. 2 Dr edge Oper at i on Pr oduct i on Recor ds

When a hopper dr edge oper at i on i s used, t he Cont r act or wi l l submi t dai l y r ecor ds of hopper l oads, i ncl udi ng t onnages of empt y and f ul l y l oaded condi t i ons pr i or t o pumpout . For al l t ypes of dr edge oper at i ons t he Cont r act or wi l l f ur ni sh pr oduct i on met er r ecor ds ( usi ng pr oper l y cal i br at ed i nst r ument s) of suct i onl i ne densi t i es and pi pel i ne vel oci t i es.

Pr oduct i on met er r ecor ds and l oadmet er r ecor ds must be cat al oged ei t her by t i me of day or l oad number .

PART 2 PRODUCTS

2. 1 CHARACTER OF MATERI ALS

The char act er of mat er i al s wi t hi n t he bor r ow ar eas i s pr ovi ded i n Sect i on

00 31 32. 03 18 COMPOSI TE GRAI N SI ZE DI STRI BUTI ON CURVES AND GRAI N SI ZE

SCALE. I f r ock, r ubbl e, or any ot her debr i s i s encount er ed dur i ng dr edgi ng, t he Cont r act or shal l i mmedi at el y cease oper at i ons and r el ocat e t o anot her sect i on of t he bor r ow ar eas. He shal l r epor t t he encount er wi t h t he r ock, r ubbl e or any ot her debr i s on t he qual i t y cont r ol f or m and i mmedi at el y not i f y t he Cont r act i ng Of f i cer , or hi s r epr esent at i ve, ver bal l y, pr ovi di ng l ocat i on i n Long I s l and Lamber t coor di nat es of t he ar ea of r ock, r ubbl e or any ot her debr i s. Rock, r ubbl e, or any debr i s l ar ger t han t wo ( 2) i nches i n di amet er and any r ubbl e, debr i s and any ot her del et er i ous mat er i al , whi ch i s excavat ed and pl aced on t he beach wi l l be r emoved by t he Cont r act or , t ot al l y at hi s own cost . I f t he Cont r act or f ai l s t o r emove t he r ock, r ubbl e, or any ot her debr i s, such mat er i al may be r emoved by t he Gover nment and t he cost of such r emoval may be deduct ed f r om t he money due, or t o become due t o t he Cont r act or or may be r ecover ed under hi s bond. Bi dder s ar e expect ed t o exami ne t he si t e of t he wor k and bor i ng sampl es and deci de f or t hemsel ves t he char act er of t he mat er i al s.

SECTI ON 31 24 00. 00 18 Page 4

2. 2 BORROW AREAS

2. 2. 1 Quant i t y

2. 2. 1. 1 Of f - Shor e Bor r ow Ar eas

For t hi s pr oj ect , a suf f i c i ent quant i t y of mat er i al sui t abl e f or t he beach f i l l i s avai l abl e f r om t he bor r ow ar ea shown on t he Cont r act Dr awi ngs.

2. 2. 2 Bor r ow Ar ea Li mi t s

Al l mat er i al shal l be dr edged f r om wi t hi n t hese ar eas. I n t he event any por t i on of t he bor r ow ar ea yi el ds mat er i al unsui t abl e f or use on t he beach, t he Cont r act i ng Of f i cer , or hi s r epr esent at i ve, may di r ect t hat t he dept h of excavat i on be changed or t hat t he excavat i ng equi pment be moved t o ot her por t i ons of t he bor r ow ar ea t hat wi l l y i el d sui t abl e mat er i al .

Under no ci r cumst ances shal l mat er i al be obt ai ned f r om out si de t he est abl i shed l i mi t s of t he bor r ow ar ea. Shoul d i t be det er mi ned t hat an ar ea out si de t he l i mi t s of t he desi gnat ed bor r ow ar ea was used f or bor r ow, t he Cont r act or shal l r est or e such ar ea t o or i gi nal condi t i on. Bor r ow ar ea l i mi t s shown on t he dr awi ng ar e t oe of s l ope.

2. 2. 3 Soundi ngs

Soundi ngs i n t he bor r ow ar ea ar e shown on t he dr awi ngs. Dr edgi ng i n t he bor r ow ar eas wi l l be al l owed t o t he dept hs i ndi cat ed on t he dr awi ngs.

2. 2. 4 Sl opes

The dr edge cut s i n t he bor r ow ar ea shal l not have si de sl opes st eeper t han 1V t o 5H. Bor r ow ar ea ent r ance and exi t s l opes shal l not be st eeper t han 1V t o 5H. Bor r ow ar ea must have a uni f or m bot t om el evat i on.

2. 3 GRAI N SI ZE DI STRI BUTI ON CURVES

2. 3. 1 Af t er Pl acement

Submi t t he Gr ai n Si ze Di st r i but i on Cur ves of beach f i l l mat er i al af t er pl acement t o t he Cont r act i ng Of f i cer f or appr oval .

PART 3 EXECUTI ON

3. 1 ORDER OF WORK

Ref er t o Sect i on 01 14 00 WORK RESTRI CTI ONS, ORDER OF WORK Par agr aph.

Remove al l t he debr i s i ncl udi ng dr i f t wood, cans, gl ass, or gani c pl ant mat er i al , and al l t r ash wi t hi n t he desi gn t empl at e bef or e any dr edgi ng can occur .

3. 2 PLACEMENT OF SAND FI LL

3. 2. 1 Pl acement

The mat er i al dr edged f r om t he desi gnat ed bor r ow ar eas shal l be pl aced on t he beach f i l l ar eas t o t he speci f i ed l i mi t s and cr oss sect i ons shown on t he dr awi ngs, pr ovi ded, however , t hat t he pr ovi s i ons of subpar agr aph

3. 2. 8( 4) shal l be cont r ol l i ng wi t h r espect t o t he l i mi t s and sect i ons of t he beach f i l l ar ea bel ow El . +3. 0 NAVD. The mat er i al shal l be deposi t ed as evenl y as pr act i cabl e by t he hydr aul i c met hod t o f or m a compar at i vel y

SECTI ON 31 24 00. 00 18 Page 5 smoot h and uni f or m beach sur f ace. A t ol er ance of 1 f oot above El . +3. 0 NAVD, measur ed ver t i cal l y, wi l l be al l owed and pai d f or on mat er i al pl aced above t he r equi r ed desi gn gr ades.

3. 2. 2 Mat er i al Deposi t ed El sewher e

Any mat er i al t hat i s pl aced el sewher e t han i n pl aces desi gnat ed or appr oved by t he Cont r act i ng Of f i cer , or hi s r epr esent at i ve, wi l l not be pai d f or , and t he Cont r act or may be r equi r ed t o r emove such mat er i al , and pl aced i t wher e di r ect ed, at hi s expense.

3. 2. 3 Dr edge Mat er i al

Dr edge mat er i al shal l be pumped di r ect l y f r om t he dr edgi ng vessel t o t he beach pl acement ar ea. No bot t om pl acement and r e- handl i ng wi l l be al l owed.

Dr edge di schar ge shal l be mani pul at ed and cont r ol l ed by t he Cont r act or i n such a manner t hat a mi ni mum of shapi ng by mechani cal equi pment wi l l be r equi r ed and a mi ni mum amount of mat er i al wi l l be l ost .

3. 2. 4 Fl oat abl e Mat er i al

Al l f l oat abl e mat er i al excavat ed and debr i s encount er ed wi t hi n t he cont r act beach f i l l pl acement ar eas, i ncl udi ng, wi t hout l i mi t at i on, wood and t i r es, shal l be di sposed of at an exi st i ng appr oved upl and di sposal ar ea. Shoul d t he Cont r act or encount er f l oat abl e mat er i al , a copy of a l et t er gr ant i ng t he per mi ssi on of appr opr i at e aut hor i t i es t o use an exi st i ng appr oved upl and di sposal ar ea shal l be submi t t ed t o t he Cont r act i ng Of f i cer and/ or hi s r epr esent at i ve.

3. 2. 5 Fi nal Beach Ber m

The f i nal beach ber m of pl aced f i l l shal l be shaped above El . +3. 0 f t NAVD by bul l dozi ng or ot her appr oved means as r equi r ed, t o pr ovi de t he desi gn beach sect i ons shown on t he dr awi ngs. No r eshapi ng of t he exi st i ng beach, whi ch i s above t he l i nes and gr ades of t he desi gn sect i on wi l l be per mi t t ed.

3. 2. 6 Compensat ed Sl ope

I f t he const r uct i on t empl at e cannot be achi eved at t he t oe of t he sect i on ( bel ow el evat i on +3. 0 NAVD) , t hen a compensat ed sl ope t o of f set voi ds i n t he const r uct i on f i l l t empl at e wi l l be al l owed, upon t he appr oval of t he COR. Such excess mat er i al shal l be pl aced bel ow el evat i on +8. 5 f t NAVD and gr aded at t he desi gn sl ope t o +3. 0 f t NAVD. Bel ow +3. 0 f t NAVD shal l be t he uncont r ol l ed hydr aul i c s l ope of t he mat er i al , and t he payabl e quant i t y shal l not exceed t he def i c i ency i n t empl at e vol ume pl us t ol er ance.

3. 2. 6. 1 Accept ance of Fi l l Sect i on

A f i l l sect i on wi l l not be accept ed unl ess t he payabl e quant i t y equal s or exceeds t he cr oss sect i onal vol ume bet ween t he desi gn gr ade and t he pr e- exi st i ng gr ades ( excl udes t ol er ance) .

3. 2. 7 Dr edge Di schar ge

I t i s i nt ended t hat dr edge di schar ge shal l be mani pul at ed and cont r ol l ed by t he Cont r act or i n such a manner t hat a mi ni mum of shapi ng by mechani cal equi pment wi l l be r equi r ed and a mi ni mum amount of mat er i al wi l l be l ost .

SECTI ON 31 24 00. 00 18 Page 6

3. 2. 8 Pl acement of Dr edged Mat er i al

Pl acement of dr edged mat er i al on t he beach f i l l ar ea shal l be subj ect t o t he f ol l owi ng condi t i ons:

( 1) Any di schar ge pi pel i ne cr ossi ng navi gat i on channel s must be submer ged so t hat suf f i c i ent dept h f or navi gat i on exi st s.

( 2) Such di schar ge pi pel i ne must be mar ked by s i gns, l i ght s or ot her devi ces t o ensur e saf et y t o navi gat i on by day and by ni ght . Al l of t hese devi ces shal l be i n compl et e accor dance wi t h Coast Guar d r egul at i ons. The cont r act or shal l pr ovi de a wr i t t en di scussi on of pi pel i ne mar ki ngs i n t he Acci dent Pr event i on Pl an. Ref er t o sect i on 01 35 26 GOVERNMENTAL SAFETY REQUI REMENTS f or t he Acci dent Pr event i on Pl an r equi r ement s.

( 3) The di schar ge pi pel i ne shal l be ar r anged as appr oved by t he Cont r act i ng Of f i cer or hi s r epr esent at i ve.

( 4) I t i s expect ed t hat i n pl aci ng t he sand f i l l hydr aul i cal l y, most of t he s i l t and ot her f i nes bei ng pumped wi l l be washed i nt o t he ocean and di ssi pat ed by wave act i on. Pondi ng of t he dr edge ef f l uent wi l l not be al l owed. However , baf f l es or di kes t o cont r ol t he f l ow of t he dr edge ef f l uent wi l l be r equi r ed. The f i nal seawar d sl ope of t he sand f i l l t o be pl aced bel ow El . +3. 0 f t NAVD shal l be t he uncont r ol l ed hydr aul i c s l ope of t he mat er i al pl aced by t he dr edgi ng pr ocess, est i mat ed t o be a 1 ver t i cal t o 15 hor i zont al s l ope down t o t he ocean bot t om. The dr edge ef f l uent shal l i n al l cases r et ur n di r ect l y t o t he ocean and not t o t he i nshor e s i de of t he f i l l .

( 5) A di ke shal l be const r uct ed at t he i nshor e l i mi t of f i l l t o pr event t he dr edge ef f l uent f r om ext endi ng beyond t he cont r act l i mi t s.

( 6) Tr acked vehi c l es shal l be oper at ed on t he f i l l i n such manner so t hat t hey do not cause excessi ve gougi ng.

( 7) The Cont r act or shal l be sol el y r esponsi bl e f or any damage caused by hi m t o any boar dwal k, st r uct ur es, exi st i ng dune or dune veget at i on, dune cr oss- over , pavement , cur bs, s i gns, l amps, bul khead, seawal l , gr oi n, beach gr ass, or any ot her pr oper t y adj acent t o t he beach f i l l ar eas, and shal l be r equi r ed t o r epai r at hi s own expense any such damage caused dur i ng t he per f or mance of wor k under t hi s cont r act . Dune f i l l pl aced under or adj acent t o exi st i ng st r uct ur es and exi st i ng t i mber cr ossover s shal l be hand pl aced as necessar y t o pr ecl ude damage t o cr ossover st r uct ur es. Pr i or t o t he commencement of oper at i ons and af t er compl et i on t her eof , a j oi nt i nspect i on by r epr esent at i ves of t he Cont r act or , The Cont r act i ng Of f i cer and l ocal i nt er est s per t ai ni ng t o t he above wi l l be made.

( 8) I n or der t o pr ovi de access f or pedest r i ans acr oss t he pi pel i ne i n beach use ar eas wi t hi n t he cont r act l i mi t s, t he pi pel i ne shal l be r amped wi t h sand on bot h s i des at a 1V: 10H sl ope over t he t op el evat i on of t he pi pe at pedest r i an access ways or at 500- f oot i nt er val s. Wi dt h of t he r amps shal l be 10 f eet . The Cont r act or may pr ovi de anot her met hod of mai nt ai ni ng pedest r i an t hor oughf ar e acr oss t he pi pe- l i ne upon appr oval by t he Cont r act i ng Of f i cer or hi s r epr esent at i ve. Pedest r i an t hor oughf ar e shal l be mai nt ai ned f or t he dur at i on of t he cont r act . Al so, i n or der t o pr ovi de f or t he saf et y of per sons usi ng t he beach, Poi nt s of Cont act ar e l i s t ed i n Sect i on

SECTI ON 31 24 00. 00 18 Page 7

01 30 00 ADMI NI STRATI VE REQUI REMENTS. Dur i ng al l pumpi ng oper at i ons, t he Cont r act or shal l pr ovi de per sonnel t o mai nt ai n v i sual cont r ol at t he end of t he di schar ge l i ne. Radi o cont act shal l al so be pr ovi ded by t he Cont r act or t o enabl e such per sonnel t o hal t dr edgi ng i n case of emer gency.

( 9) The Cont r act or may be di r ect ed t o move t o anot her l ocat i on wi t hi n t he Bor r ow Ar ea i f undesi r abl e mat er i al begi ns t o be pumped ont o t he beach ( i . e. s i l t ) .

( 10) The ar ea wher e f i l l i ng oper at i ons ar e i n pr ogr ess shal l be f l oodl i ght ed dur i ng t he hour s of dar kness. I l l umi nat i on shal l be pr ovi ded by usi ng por t abl e l i ght equi pment such as model No. LDA I 6 MTVE manuf act ur ed by ALLMAND BROS. I NC. of HOLDREI RE, or appr oved equal . A mi ni mum of 3- f oot candl es of i l l umi nat i on shal l be mai nt ai ned i n t he i mmedi at e v i c i ni t y of t he pi pe di schar ge.

( 11) Moni t or i ng t he di schar ge oper at i on by r adi o communi cat i on f r om t he di schar ge l ocat i on t o t he l ever man dur i ng al l pumpi ng oper at i ons i s r equi r ed.

( 12) A pl acement sect i on wi l l not be accept ed f or f i nal sur vey unl ess t he sect i on i s gr aded and dr essed so as t o el i mi nat e any undr ai ned pocket s, abr upt l umps, and depr essi ons i n t he beach f i l l sur f ace.

( 13) Dur i ng al l pumpi ng oper at i ons, t he Cont r act or shal l pr ovi de per sonnel t o mai nt ai n v i sual cont r ol of t he end of t he di schar ge l i ne. Radi o cont act shal l al so be pr ovi ded by t he Cont r act or t o enabl e such per sonnel t o hal t dr edgi ng i n case of emer genci es or undesi r abl e mat er i al pl acement as di r ect ed by t he USACE.

( 14) A t empor ar y di ke shal l be const r uct ed at t he i nshor e l i mi t of t he f i l l t o pr event t he dr edgi ng ef f l uent f r om ext endi ng beyond t he cont r act l i mi t s.

( 15) Compl et ed wor k on t he beach f i l l pl acement wi l l be accept ed i n 500- f oot l ong sect i ons. Upon compl et i on of al l f i l l i ng oper at i ons wi t hi n an accept ance sect i on, t he f i l l shal l be gr aded and dr essed so as t o el i mi nat e any un- dr ai ned pocket s, abr upt l umps, and depr essi ons i n t he beach f i l l sur f aces. The bank caused by ocean wave er osi on shal l be gr aded down t o a s l ope not st eeper t han one ( 1) f oot ver t i cal t o t went y ( 20) f eet hor i zont al t o El ev. - 1. 0 NAVD. Fi nal sur veys as r equi r ed i n par agr aph ent i t l ed QUANTI TY SURVEYS of t he Speci al Cont r act Requi r ement s may not be per f or med unt i l f i l l i s gr aded and dr essed. Fi nal accept ance of t he beach f i l l wor k wi l l be as def i ned i n par agr aph ent i t l ed FI NAL EXAMI NATI ON AND ACCEPTANCE of sect i on 01 30 00

ADMI NI STRATI VE REQUI REMENTS.

( 16) The Cont r act or shal l obt ai n gr ab sampl es of pl aced f i l l f r om: t he beach back- shor e; edge of ber m; mean hi gh wat er ( MHW) ; and mean l ow wat er ( MLW) . One set of sampl es shal l be t aken ever y 200 f eet al ong t he pl aced f i l l ar ea. A gr ai n s i ze anal ysi s of each sand sampl e wi l l be made usi ng si eve si zes compar abl e t o t he Went wor t h s i ze c l assi f i cat i ons and t he r esul t s pl ot t ed on t he cur ve f or mat gi ven i n Sect i on 00 31 32. 03 18. The l abor at or y anal ysi s r esul t s and pl ot t ed gr ai n s i ze di st r i but i on cur ves shal l be f ur ni shed wi t h t he Dai l y Const r uct i on Qual i t y Repor t s.

SECTI ON 31 24 00. 00 18 Page 8

3. 3 PLANT

The Cont r act or agr ees t o keep on t he j ob suf f i c i ent pl ant t o meet t he r equi r ement s of t he wor k. The pl ant shal l be i n a sat i sf act or y oper at i ng condi t i on and capabl e of saf el y and ef f i c i ent l y per f or mi ng t he wor k as set f or t h i n t he speci f i cat i ons. The pl ant shal l be subj ect t o t he i nspect i on of t he Cont r act i ng Of f i cer and/ or hi s Repr esent at i ve at al l t i mes. No r educt i on i n t he capaci t y of t he pl ant empl oyed on t he wor k shal l be made except by wr i t t en per mi ssi on of t he Cont r act i ng Of f i cer and/ or hi s Repr esent at i ve. The measur e of t he " capaci t y of t he pl ant " shal l be i t s act ual per f or mance on t he wor k t o whi ch t hese speci f i cat i ons appl y.

3. 3. 1 Scows

The use of scows i s pr ohi bi t ed.

3. 3. 2 Hydr aul i c Pi pel i nes

Al l pi pel i nes f or hydr aul i c dr edgi ng Pl ant must be kept i n good condi t i on at al l t i mes and any l eaks or br eaks al ong t hei r l engt h shal l be pr ompt l y r epai r ed. Al l br eaks i n any pi pel i ne shal l be r epor t ed on t he Cont r act or ' s Dai l y Qual i t y Cont r ol Repor t f or t he dat e t he br eak occur r ed. An est i mat i on of t he dur at i on of t he br eak and t he quant i t y of mi spl aced mat er i al shal l be pr ovi ded i n t he r epor t .

3. 3. 3 Mar ki ng of Fl oat i ng Dr edge Pi pel i nes

The cont r act or shal l be r equi r ed t o mar k f l oat i ng dr edge pi pel i nes i n accor dance wi t h t he r equi r ement s of 88. 15 of Annex V of U. S. Navi gat i on Rul es, i nl and, COMDTI NST M 16672. 2A, dat ed 23 December 1983. Dr edge pi pel i nes t hat ar e f l oat i ng or suppor t ed on t r est l es shal l di spl ay one r ow of yel l ow l i ght s, v i s i bl e al l ar ound t he hor i zon f or at l east 2 mi l es on a c l ear , dar k ni ght . The l i ght s shal l f l ash at 50 or 70 t i mes per mi nut e and be pl aces not l ess t han 1 and not mor e t han 3- 5 met er s ( 9. 8- 16 f eet ) above t he wat er . The l i ght s shal l be suf f i c i ent i n number t o c l ear l y show t he l engt h and cour se of t he pi pel i ne.

3. 3. 4 Dr edge Pi pel i nes Cr ossi ng Navi gabl e Channel s

The ar r angement of any pi pel i ne cr ossi ng a navi gabl e channel shal l be appr oved by t he Cont r act i ng Of f i cer . Wher e t he pi pel i ne cr osses a navi gabl e channel t he spaci ng of t he l i ght s shal l not be mor e t han 10 met er s ( 33 f eet ) apar t . Two r ed l i ght s, v i s i bl e al l ar ound t he hor i zon f or at l east 2 mi l es on a c l ear , dar k ni ght , shal l be di spl ayed at each end of t he pi pel i ne, i ncl udi ng t he ends i n a channel wher e t he pi pel i ne i s separ at ed t o al l ow vessel s t o pass ( whet her open or c l osed) . The l i ght s shal l be one met er ( 3. 3 f eet ) apar t i n a ver t i cal l i ne wi t h t he l ower l i ght at t he same hei ght above t he wat er as t he f l ashi ng yel l ow l i ght .

3. 3. 5 Submer ged Pi pel i nes

Any di schar ge pi pel i ne submer ged t o cr oss a navi gat i on channel shal l be submer ged so t hat suf f i c i ent dept h f or navi gat i on exi st s. Such di schar ge pi pel i ne shal l be mar ked by s i gns, l i ght s or ot her devi ces t o ensur e saf et y t o navi gat i on by day and by ni ght . Al l of t hese devi ces shal l be i n compl et e accor dance wi t h Coast Guar d r egul at i ons.

SECTI ON 31 24 00. 00 18 Page 9

3. 3. 6 Road Cr ossi ngs

A det ai l ed pl an of t he pi pel i ne r out e t o be used by t he Cont r act or shal l be submi t t ed pr i or t o l ayi ng of t he pi pel i ne. A r amp over any di schar ge pi pel i ne cr ossi ng any r oadways at t he pr oj ect s i t e( s) shal l be pr ovi ded.

Addi t i onal l y, adequat e s i gns ( caut i on and st op, i f necessar y) , and f l ashi ng war ni ng l i ght s, shal l be pr ovi ded by t he cont r act or t o ensur e saf et y t o vehi c l es and t hei r occupant s usi ng t he r oadway. Under no ci r cumst ances shal l any por t i on of t he paved por t i on of any r oadway be di st ur bed. I f t he r oadway i s di st ur bed, t he Cont r act or shal l pr ovi de an adequat e base t o al l ow t r af f i c t o pass over t he pi pel i ne, and r epai r s t o t he r oadway af t er compl et i on of t he pr oj ect ar ea, such t hat t he r oadway i s r est or ed t o a condi t i on equal t o or bet t er t han t he condi t i on pr i or t o di st ur bance. I n addi t i on, pr i or t o pl acement of t he pi pel i ne acr oss any r oadway, t he Cont r act or shal l cont act per sonnel at t he appr opr i at e muni ci pal i t y t o det er mi ne i f t he war ni ng si gns and l i ght s ar e adequat e f or saf et y pur poses.

3. 3. 7 Towi ng Vessel s

A suf f i c i ent number of vessel s of adequat e s i ze and hor sepower , each desi gned, out f i t t ed, and equi pped f or t owi ng ser vi ce, shal l be avai l abl e at al l t i mes t o move bot h sel f - and non- sel f pr opel l ed pl ant agai nst t i des, cur r ent , and wi nds dur i ng sever e weat her condi t i ons.

3. 4 DREDGE LOCATI ON CONTROL

The Cont r act or i s r equi r ed t o have el ect r oni c posi t i oni ng equi pment t hat wi l l accur at el y comput e and pl ot t he posi t i on of t he dr edge. Whenever dr edgi ng oper at i ons ar e under way, t he l ocat i on of t he dr edge shal l be cont i nuousl y moni t or ed and t he dr edge l ocat i on, i n Long I s l and Lamber t Coor di nat es, shal l be r ecor ded at i nt er val s not t o exceed one ( 1) mi nut e.

Such r ecor ds, and an accur at e map showi ng act ual dr edgi ng l ocat i ons, shal l be f ur ni shed t o t he Cont r act i ng Of f i cer , or hi s r epr esent at i ve dai l y as par t of t he Qual i t y Cont r ol Repor t s. The el ect r oni c posi t i oni ng equi pment shal l be i nst al l ed on t he dr edge so as t o moni t or , as c l osel y as possi bl e, t he act ual l ocat i on of t he cut t er head or dr agar m. Thi s equi pment shal l be cont i nuousl y accessi bl e by t he Gover nment r epr esent at i ve on boar d t he dr edge, who must be abl e t o ver i f y equi pment cal i br at i on at any t i me. The el ect r oni c posi t i oni ng equi pment shal l be r equi r ed t o be cal i br at ed mont hl y, mai nt ai ned and oper at ed so t hat t he maxi mum er r or f or t he coor di nat es r ecor ded do not exceed 3 f eet . The l ocat i on on t he dr edge of t he mast er ant enna and t he di st ance and di r ect i on f r om t he mast er ant enna t o t he cut t er head shal l be r epor t ed on t he Qual i t y Cont r ol Repor t s. No dr edgi ng wi l l t ake pl ace out si de t he bor r ow ar ea l i mi t s as shown on t he dr awi ngs. Dr edgi ng out si de of t he bor r ow ar ea l i mi t s wi l l r esul t i n i mmedi at e shut down of wor k. The Cont r act or ' s met hods of l ocat i on of t he dr edge shal l be submi t t ed wi t h t he qual i t y cont r ol pl an. I nf or mat i on t o be submi t t ed shal l i ncl ude a wr i t t en descr i pt i on of t he equi pment , i ncl udi ng appl i cabl e manuf act ur er s br ochur e and dat a, and pr evi ous j obs on whi ch t he equi pment has been used.

3. 4. 1 Dr edgi ng Dept h Moni t or i ng Equi pment

The Cont r act or shal l have i n cont i nuous oper at i on whenever dr edgi ng oper at i ons ar e under way, el ect r oni c equi pment whi ch measur es t he cut t er head or dr agar m dept h. The dept h measur i ng devi ce ( as appr oved by t he Cont r act i ng Of f i cer or Cont r act i ng Of f i cer Repr esent at i ve) shal l be used and i nt er f aced wi t h t he el ect r oni c posi t i oni ng equi pment r equi r ed i n

SECTI ON 31 24 00. 00 18 Page 10

Par agr aph 3. 4. The dept h measur i ng devi ce shal l be cal i br at ed by a bar check dai l y. Thi s equi pment shal l be accessi bl e t o t he Gover nment Repr esent at i ve onboar d t he dr edge, who shal l be abl e t o ver i f y cal i br at i on. Ver t i cal accur acy shal l be + or - 0. 1 f oot . Recor ds r equi r ed f or dr edge l ocat i on ( Par agr aph 3. 4) shal l al so i ncl ude dept h cor r ect ed f or t i de ( el evat i on r ef er ence t o MLW) . Det ai l s of t he dept h measur i ng devi ce shal l be submi t t ed wi t h t he qual i t y cont r ol pl an.

3. 5 NOTI FI CATI ON OF ON- SHORE BARGE OPERATI ON

A mi ni mum of one hour ' s not i ce must be f ur ni shed by t he Cont r act or t o t he Cont r act i ng Of f i cer , or hi s r epr esent at i ve, and concur r ent l y t o t he muni ci pal or l ocal agency r esponsi bl e f or beach oper at i ons pr i or t o a bar ge comi ng on shor e bet ween t he hour s of 9 AM and 7 PM - or dayl i ght hour s. Bar ges wi l l not be al l owed t o come on shor e on weekends or St at e hol i days bet ween t he hour s 9 AM7 PM and 7 PM 9 AM- or non- dayl i ght hour s.

At no t i me wi l l a bar ge be al l owed t o come on shor e i n an ar ea ot her t han t he i mmedi at e wor k ar ea.

3. 6 BUOY REMOVAL

The Cont r act or shal l not i f y t he Coast Guar d at l east 15 days pr i or t o t he dat e desi r ed f or havi ng buoys r emoved or r el ocat ed whi ch i nt er f er e wi t h dr edgi ng oper at i ons. Request s shal l be made i n wr i t i ng t o:

COMMANDER ( OAN)

FI RST COAST GUARD DI STRI CT

408 ATLANTI C AVENUE

BOSTON, MASS. 02110

or by t el ephoni ng ( 617) 223 8337

3. 7 TEMPORARY FENCES

3. 7. 1 Land Boost er Pumps

I f l and boost er pumps ar e used, a t empor ar y Pol yet hyl ene Mesh Saf et y f ence must be i nst al l ed by t he Cont r act or ar ound t he boost er f aci l i t y . For f ence const r uct i on, r ef er t o sect i on 01 50 00 TEMPORARY CONSTRUCTI ON FACI LI TI ES AND CONTROLS, " Pol yet hyl ene Mesh Saf et y Fenci ng" par agr aph.

The Cont r act or must r emove t he f ence at t he compl et i on of t he wor k or when di r ect ed by t he Cont r act i ng Of f i cer , and al l mat er i al used must r emai n pr oper t y of t he Cont r act or .

3. 7. 2 Beach Access Ramps

Beach access r amps and st ai r s t o t he wor k ar eas wi t hi n 500 f t of t he desi gnat ed wor k ar ea must be cl osed by t he cont r act or by er ect i on of a mi ni mum 4 f eet hi gh Pol yet hyl ene Mesh Saf et y f ence. For f ence const r uct i on r ef er t o sect i on 01 50 00 TEMPORARY CONSTRUCTI ON FACI LI TI ES AND CONTROLS, " Pol yet hyl ene Mesh Saf et y Fenci ng" par agr aph.

The Cont r act or must al so pr ovi de si gnage at t he beach access poi nt s i ndi cat i ng " DO NOT ENTER - CONSTRUCTI ON AREA" , as appr oved by t he Cont r act i ng Of f i cer .

Ramps, st ai r s, or ot her access f eat ur es r equi r i ng c l osur e wi l l be i dent i f i ed dur i ng on- si t e pr e- const r uct i on meet i ng bet ween t he Cor ps of Engi neer s, t he Cont r act or , and l ocal i nt er est s.

SECTI ON 31 24 00. 00 18 Page 11

3. 7. 3 Sand Fence

Sand f ence wi l l be i nst al l ed on t he beach encl osi ng t he 1000- f oot l ong desi gnat ed wor k sect i on f r om t he backshor e l i mi t of f i l l t o t he mean hi gh wat er l i ne. The f ence must al so be i nst al l ed al ong t he backshor e t o pr event ent r y t o t he wor k ar ea. The f enci ng mat er i al f or t hi s pur pose must be a mi ni mum 4 f eet hi gh Pol yet hyl ene Mesh Saf et y f ence.

For f ence const r uct i on, r ef er t o sect i on 01 50 00 TEMPORARY CONSTRUCTI ON FACI LI TI ES AND CONTROLS, " Pol yet hyl ene Mesh Saf et y Fenci ng" par agr aph.

Cont r act or must pr ovi de adequat e secur i t y per sonnel t o r est r i ct unaut hor i zed ent r y i nt o t he wor k ar ea dur i ng al l t i mes of oper at i on. The ends of each wor k ar ea must be cl osed of f dur i ng wor k i n t hat ar ea by er ect i on of a sand f ence ext endi ng f r om t he l andwar d l i mi t of f i l l seawar d t o t he mean hi gh wat er l i ne.

3. 7. 4 Removal of Tempor ar y Fenci ng

The f ence must be r emoved by t he Cont r act or at t he compl et i on of t he wor k or when di r ect ed by t he Cont r act i ng Of f i cer , or hi s r epr esent at i ve, and al l mat er i al used must r emai n t he pr oper t y of t he Cont r act or .

For measur ement and payment of t empor ar y f ences r ef er t o Sect i on

01 20 00 PRI CE AND PAYMENT PROCEDURES.

3. 8 SECURI TY OF WORK AREA

I n t he wor k ar ea pr ovi de a combi nat i on of f enci ng above t he hi gh wat er l i ne secur i ng t he nor t h, west and east s i des of t he wor k ar ea and a war ni ng t ape t o t he l ow wat er l i ne. Pl ace si gns i ndi cat i ng " No Tr espassi ng- Const r uct i on Ar ea" on t he f ence ever y 50 f eet of l engt h.

Empl oy one or mor e uni f or med secur i t y per sons sol el y t o r est r i ct publ i c access i n t he wor k ar ea at al l t i mes.

3. 9 SURVEY RECORDS

3. 9. 1 Beach Fi l l Pl acement Sur veys

Submi t t he Bef or e and Af t er Beach Fi l l Pl acement Sur veys f or Cont r act i ng Of f i cer ' s appr oval .

3. 9. 2 Dr edge Sur veys of t he Bor r ow Ar ea

Submi t t he Bef or e and Af t er Dr edge Sur veys of t he Bor r ow Ar ea f or Cont r act i ng Of f i cer ' s appr oval .

- - End of Sect i on - -

SECTI ON 31 24 00. 00 18 Page 12

PERMIT MODIFICATION

September 9, 2024

Via Email Only

Peter Weppler, Chief Environmental Analysis Branch U.S. Army Corps of Engineers – Planning 26 Federal Plaza – Room 2151 New York NY 10278 0090

Re: DEC Permit #: 1-4799-00149/00001 Water Quality Certification (WQC)

FIMP – Contract 4- Modification #2, Condition # 17

Dear Mr. Weppler:

The New York State Department of Environmental Conservation (DEC) has in part completed its review of the September 4, 2024 request to modify the above referenced Water Quality Certification (WQC) by providing limited relief from WQC special condition # 5, Dredging Prohibition Period to protect Atlantic Sturgeon, and to provide one-time relief from the time restriction in special condition # 6, Dredging Prohibition Period to Protect Spawning Shellfish and Finfish/Winter Flounder

As indicated previously in our August 6, 2024 comment letter, DEC staff have strong concerns regarding the request to modify special condition # 5, Dredging Prohibition Period to protect Atlantic Sturgeon, and that review continues. However, DEC staff have no objection to providing limited relief from special condition # 6, for this initial dredge cycle only, based on site conditions described in your request.

Therefore, in accordance with the Uniform Procedures Regulations (6NYCRR Part

621), the dredging and in-water work in Moriches Bay needed to complete the Cupsogue CPF are authorized on a one-time-only basis to February 1, 2025 inclusive.

This letter is a modification to the original permit and must be available at the job site whenever authorized work is in progress. All other terms and conditions remain as written in the original permit.

Sincerely, Kevin Kispert File/ Enclosures Permit Administrator cc via e-mail: NYSDEC Review Team NYSOPRHP, NYSDOS-Coastal Review SC Parks