Discussion of Lower Passaic. Presentation to the Passaic River Community Advisory Group December 6, 2012

Transcription

1 scusso of Lowr Passac Claup Altratvs Prstato to th Passac Rvr Commuty Advsory Group cmbr 6,

2 Prstato Elmts Ovrvw of Sustaabl Rmdy scusso of Rgo 2 s FFS assumptos scrpto of targtd rmdato ad watrshd mprovmt projcts Why us th targtd approach? Coclusos 2

3 Goals for th Rvr Improv th qualty of th Rvr as quckly as possbl Us tchqus that hav th bst chac for succss ad hav b prov ffctv. Mmz mpacts ad provd valu to ghborg commuts 3

4 A Sustaabl Rmdy Nds to addrss th tr 17-ml cosystm Cossts of: Targtd rmdato of hghst surfac sdmt cotamato followd by rvw of actual, masurd rsults Projcts such as wtlads rstorato, storm watr rducto tatvs ad fforts to mprov accss ad usablty 4

5 Currt Rgo 2 FFS Two altratvs udr cosdrato: p rdg rmov all sdmts from RM 0-8 rdg ad Cap rmov surfac sdmts ad stall cap RM 0-8 Rgo 2 assums ths ca b compltd 6-11 yars os ot addrss RM

6 Assumptos Mad th Rgo 2 FFS rdgg ca b accomplshd much fastr tha xprc suggsts Sdmts ca b rmovd from a scto of Rvr wth vrtually o rcotamato from adjog aras up ad dowstram Natural rcovry rats obsrvd rct yars wll ot cotu 6

7 Sustaabl Rmdy Basd o Adaptv Maagmt sg Implmt Motor Evaluat 7

8 RM 10.9 ata Clarly Illustrats Ablty to Rduc Pottal Rsk wth Targtd Rmoval 2,3,7,8 TC Rmoval Ara s wll dfd by 1000 ppt cotour: I f sdmt ar shor ctral to uprvr porto of sd rvr bd Rapd dcl of coctratos outsd of slt dpost pr sdmt s stabl as documtd by radodatg TC co-locatd wth othr COCs (spcally thos wth th hghst coctratos such as PCBs ad mrcury) Targtd rmdato of hgh coctrato ara provds sgfcat ovrall rsk rducto 8

9 vlopg Targt Aras: Exampl at RM Boudd by rvr chal ad adjact sampls Boudd by rvr chal ad adjact sampls 9

10 Proposd Targtd Aras Elvatd TC ad othr COCs ar grally co-locatd As pr Adaptv Maagmt, ogog dlato ad motorg wll b usd to rf aras Wll rduc surfac coctratos of TCs by 80% ad brg PCBs to backgroud lvls 10 10

11 Comparso wth FFS % Rducto vs. Tm P r c t T C R m a g 100% 90% 80% 70% 60% 50% 40% 30% 20% 10% 0% Targtd Rmdy FFS rdg ad Cap Uprcdtd rdgg Rats rdgg projcts lss urbazd rvr systms hav rarly achvd assumd rats: Hudso: 363,000 cy 2011 ad about 650,000 cy 2012 Fox Rvr: about 500,000 cy/yr Th rmoval rat for th Trra Phas 1 projct quats to about 120,000 cy/yr Egrs stmat FFS to tak 17 to 28 yars to complt udr optmal codtos FFS p rdg Yar o th Rvr 11

12 Comparso wth FFS % Rducto vs. Tm P r c t T C R m a g 100% 90% 80% 70% 60% 50% 40% 30% 20% 10% Targtd Rmdy FFS rdg ad Cap Mor Lkly rdgg Rats FFS p rdg rdgg s Sloppy Work Up to 6% of sdmt drdgd s lost to th rvr Th mor sdmt drdgd th mor that wll b lost Targtd aras ca b cotrolld bttr so lss sdmt s lost 0% Yar o th Rvr 12

13 Comparso wth FFS % Rducto vs. Tm P r c t T C R m a g 100% 90% 80% 70% 60% 50% 40% 30% 20% 10% Targtd Rmdy Wll los lss sdmt Effct of loss of sdmt durg drdgg FFS rdg ad Cap FFS p rdg Wll los th most sdmt 0% Yar o th Rvr 13

14 Comparso wth FFS % Rducto vs. Tm P r c t T C R m a g 100% 90% 80% 70% 60% 50% 40% 30% 20% 10% Targtd Rmdy Wll b lss affctd bcaus t works wth th rvr Effct of backgroud o rsults of drdgg FFS rdg ad Cap Th cap wll b rcotamatd FFS p rdg Chals wll b flld wth backgroud sdmt 0% Yar o th Rvr 14

15 Rcotamato of Caps Cotamato Rmas Upstram ad owstram of th Rmdatd Ara for Rgo 2 s Altratvs Avrag Surfac Sdmt 2,3,7,8-TC C (ppt) Today As prdctd by EPA Post-Rmdato RM 8-12 RM 0-8 UNB 15

16 What Happs Aftr Rgo 2 s FFS rdgg? 40% rducto fsh tssu cotamat coctrato 12 yars (3% pr yar) Sam rducto rat s fsh tssu 16

17 Nothg Has Chagd Bathymtry shows th rvr s workg th sam way Rcovry wll cotu Wth th hgh coctrato ara rmovd th rat of rcovry may cras 17

18 Comparso wth FFS % Rducto vs. Tm P r c t T C R m a g 100% 90% 80% 70% 60% 50% 40% 30% 20% 10% Targtd Rmdy FFS rdg ad Cap Natural Rcovry Cotus FFS p rdg Aftr Sourc Rmoval Rcovry cotus at 3% 0% Yar o th Rvr 18

19 Comparso wth FFS % Rducto vs. Tm P r c t T C R m a g 100% 90% 80% 70% 60% 50% 40% 30% 20% 10% Targtd Rmdy FFS rdg ad Cap Natural Rcovry May Icras FFS p rdg Aftr Sourc Rmoval 0% Yar o th Rvr If th rcovry rat crass to 5% pr yar all rsults ar qual 19

20 Comparso wth FFS % Rducto vs. Tm P r c t T C R m a g 100% 90% 80% 70% 60% 50% 40% 30% 20% 10% Targtd Rmdy FFS rdg ad Cap FFS p rdg Th ffrc Quckr rsk rducto wll rsult a bttr rvr 0% Yar o th Rvr 20

21 Iformato to masur succss ad support futur dcso-makg Post-rmdy motorg to masur ffctvss Fsh tssu Ecology Bathymtry Nd to dmostrat succss to EPA ad stakholdrs 21

22 Motorg data wll lt us aswr ths mportat qustos Hav lvls fsh tssu dcld? Hav th caps rmad tact? Is rmag rvr sdmt stabl? Is cology mprovg? Ulss th aswrs ar YES, mor work wll d to b do 22

23 Out-of-Rvr Compot Focuss o RM 0-17 Addrsss ogog cotamato ad urba rvr watr qualty ssus Icluds projcts, such as wtlads rstorato, stps to rduc urba ruoff, w parks, ad mprovd accss pots wth put from Rvr commuts 23

24 Coclusos Sustaabl Rmdy Cosstt wth EPA Gudac Cosdrs all avalabl data Achvs sgfcat rsk rducto fastr Rmovs hgh coctrato aras Mmzs r-suspso of COCs Sgfcatly rducs durato/dsturbac of Rvr Ehacs th atural rcovry rats of th Rvr Uss masurd data to valuat prformac Rducs ogog cotamato through out-of-rvr projcts 24

25 Qustos? 25