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Home My WebLink AboutSS3 - Rhine Channel Remediation ProjectX53 - a3 -r�5 Rhine Channel Sediment Remediation Harbor Feasibility Project Resources Division Harbor Resources Division A Pnsontation to City of Newport Beach City Council Topics that will be discussed in this presentation: -How the Rhine Channel Became a Site of Concern -History of Contamination -Sediment Sampling -Side Scan Sonar & Debris Field Mapping -infrastructure Survey -Laboratory Analysis •Remediation Alternatives -Funding Alternatives 1 2 WA Why is this area more contaminated than the remainder of the harbor? ,YU Harbor Resources ... IlAvkbn 46-Q—=- :.. dOPWO .- •uuIn 191 g but was used pre omin after 1935. • Some dredging occurred in 1920 and in 1934 -35 with the large scale dredging of the Lower Bay, with no maintenance dredging since then. -During 1940's and 50's the channel supported boatbuilding activities (minesweepers, subchasers and rescue boats) for the U.S. and Mexican Navies for World War II and the Korean War. -in 1964, 19 shipyards operated in Newport Bay, today there are six operational shipyards. Predominant locations have been the Rhine and Mariner's Mile. • Plating firms were also present in the Rhine Channel watershed. How were the field samples collected? ''j� The core lengths (depth of accumulated sediments) varied Harbor from about 79 inches for the station one, to about 23 inches Resources for the station 14. Division Core tubes were transported to a processing area constructed near the channel, at the turning basin, for immediate processing. Harbor Resources Division W e found: -Misc. Boat parts -Engine parts. -Batteries, -Car body parts. What, other than sediment, is on the bottom of the Channel ? -We used side scan sonar to identify the extent of the debris field, as shown in the partial channel area example below. 0 4_I RN,Ne CNANNeIII Gr 21 - NCwPOMT BCACM. CA °• Ofi�NOC Co.., CC.9T <CCPYCf f31.MPG4NyySp BRVSNT AYY•oolAT(�. INC. ��••��• Auo 30( 2C °o'A What other problems will be encountered with the sediment removal? Harbor • Shown below are examples of failing bulkheads, cracked concrete Resources pile and exposed storm drains. Division . Other problems include areas of no bulkhead, rip -rap sections of shoreline, lack of shoreline access, and debris removal, ' • _. + iii �:f A f- Pharo 10. C.k.aco .p8ufr I 0 IIJPuel Pueldn (lesods!d oRenby pauyuo:)) al!S GVD mON (11Y 1,40d) Joo al!S -40 (ap!spuel- Nlpoej !esods!0 paupoo) Jp:) al!S-uo saniiewaw peso siQ I.: uo!lonJlsuoD Jalem -ut to swep Jago:) luawaoeldaJ peal ;�lns . saJnpn.gs 6u!ls!xa anea! Jo anowaa opneJpAyJOleo!ueyuah! • *--- buibpaaa Sanaeua94jy uoipnalsuoD L;uawipas p9leuiweluo0 ay; anowaJ am op MOH uo!sin!a saoJnosab JOgJ8H suollenala J94614 a41 ul uo4eulweluoo lOO Pue 8Od Pue aioo a433o 43dep a411no46no341 oulz pue Jaddoo peal se 4ons sluawale aml ;o uoileuiweluoo moos saloo lsoyy • uolslnlp saoJnosaa paJ pape4s sl anlen a43 Paieloln spJepuels aaJ41 ;I :96ueJO pape45 JOQJeH sl anlen a41 Palelo!n We splepuels oml l! :mollaA pape4s sl anlen ayl waouoo 1 o Juan 1i 3 suoo a 4 1 Jo i P aleloln uaa Q se 4 P Je P uels auo ua 4 m'mo 1 4 alclej 4 l ul. v 6uo!3ewweluoo luaw!pas ay1 sl peq MOH What are the feasible remediation alternatives and how much do they cost? Taae u Summary d R•me tAka A.EYW..— �•e%app4•A� What are the potential sources of funding? `� TmMeal Harbor • Direct Appropriation through our member of Congress Resources . Brownfield Cleanup and Redevelopment Grants to individual property owners Division HYpyMIMµ FltyipMAnyllttyaLy PwmNtlrNy anO rnsti':Nma mpaGf (� IIIbMw lllarl OIM 1Y" Emi•ptFStii Pwntit eammm rna6tPlbrrl bFleneMaYiAr �� T. Talc Tww iFy M9asb AepaNpn Yiybn Ygsb AienitV• Pa •ur ian IrvI n In; mS) PqY evl qtr 4iM1 Awna•.wi r orPapaaeu Dftl amp Gem Omd Cem Fr eppi am! des 111 rugnaeveiA ro mRbOWtrareFFrt � Me 3 aopp apa! F* 0epF Bmp eppAm fat apps app! AS r0'"Pwap oq) AFniw3A ro CHbbNWltaFwl - - 161 amp 0t F* eYt Farman,, i""• Fa Cy !W t➢!rJla Jl gaagt AgnmwN - - lttb prommbYAlmmtepa•r �•e%app4•A� What are the potential sources of funding? `� Federal Funding Harbor • Direct Appropriation through our member of Congress Resources . Brownfield Cleanup and Redevelopment Grants to individual property owners Division • 319 h Grant State Funding • Proposifion 50 —Clean Beaches Initiative Grant (or get direct appropriation written into future Prop (2005 election. etc.) • Ocean Plan — proposed funding for remediation Local Funding • Assessment of Property Owners • Harbor Wide Fee Establishment of a redevelopment project area (use Tax Increment Financing) Harbor Permit (residential dock, commercial dock, mooring) Fee Increase Full recovery of cost for RGP dredging permits Residential Slip Leasing Fee Proiect Cost Reduction Use material for daily cover at landfills • Convince landfill operators to waive tipping fees • Use as sub -road base on a local project Harbor Resources Division Anticipated Question Slides Follow �yN1 O What are some physical characteristics of the channel? C'I<llaa�� mWY 1I bX IIR Ftesuurcear�.. -�'� Division ix Roacn 31R]! a ,t� " . ?4 RY h I IR1) Dhow :. '...o e.acl-.ax of tiu R]v:va r]uflzlY) Table I Cnanna cnaooee.�.ncs R� Mavn 1(q1) Raaan 1(Mi l 13XpX 'WCR MSn. wa wa`bua wd R :OOR Wan wdF 3D] fODX n the �f Vw w• II SX It6R 7 mWY 1I bX IIR 7 a.n vpq! How much sediment has accumulated since 1935? Harbor Division Resources Sta 0 +00 ne;ers Division M+r We performed hydrographic surveys St. I of the channel to estimate the volume, •mow• wio • of accumulated sediment. -Contour lines show the depth in one St�2 +00 half foot increments. .ate WP -Red circles show the core sample site location. 3+00 -The total volume of contaminated �s s sediment that needs to be removed including one half foot over- dredge is 4 t 110,000 cubic yards. g l' $ur What are the sampling site locations? Division ne;ers M+r •mow• wio • .ate R What standards will we be required to attain in our cleanup ' efforts? Harbor -TMDL is the total maximum daily load promulgated by EPA for Newport Bay in 2002. Resources Division •ER -L is effects range low (concentrations that resulted in adverse bioeffects in 10% of studies examined) •ER -M is effects range median ( concentrations that resulted in adverse biceffects in 50% of studies examined) www4+e+M10. LL_ f s+ ®" What do all of these results of chemical analyses mean for the Newport Bay ecosystem? Harbor Resources Division A risk assessment was performed that evaluated the potential for adverse effects to fishes, birds and marine mammals from Rhine Channel sediments under existing conditions. • For all fish species, dietary exposure to copper indicated potential adverse effects to survival, growth, or reproduction. • For pelican and cormorant eggs, the analysis showed that the level of DOE and PCB's indicated the potential risk to reproduction of these birds. 9 How were the field samples collected ? Harbor D 15 core samples were collected at locations previously sampled Resources during SCCWRP study with one additional station added near 25th Resources street storm drain. D Analytical tests were run for metals, PCBs, PAHs, pesticides, and TOC. Physical analyses include grain size , Atterberg Limits and moisture content. How were the samples processed in the field? Harbor Samples were collected from all defining strata above the native Resources material, and from the underlying native material. Division The only area of the core not sub - sampled for the analysis was the small mixed layer between the native and depositional material, where it was not possible to differentiate the two. =Nt'AM Ad 10 `� vpAT How deep does the contamination go? Harbor • The TMDL criteria for the two examples below is the most restrictive Resources criteria, Division • For sample site No. 1 ,shown with the blue line, almost the full 200 centimeter depth of accumulated sediment would have to be removed to meet the copper standard or 150 centimeters to meet the zinc standard. caweon ma w.i c ,co xcc we a eco wo +w o: .c xe .x w :t a - g •m r �a�:i:i — �- 9:t�.� �.�.�Oett yf-- 1160116 TM0. �EK ��5•: What is the most feasible location for a CAD site? N Resources Division 11 What are the elements of the cost of Option 2 and the variations of that option? Harbor Option 2 - Dredging Plus Landfill Disposal Resources Division GRAND TOTAL with cement MOOMATIONS TO TOTAL Total with no bUkW re0ecerneri (14 a and b) $21,175.680 Total w9h no tppkg fee (15 c used as claily cover) Total wdh no typing fee and no MhW replacwant $10,799,091 Cost of Hydrocyclone for dewNarq 135,000 --- 5405,000 ---------- --- Told with *ftycione kW of canal $19,7641576 ----------- Me! YAh lircirocyclone and no Nkhood "awnerd and no $7.812,723 :ppirg fee. What are the elements of the cost of Option 3 and the variations of that option? Harbor Resources Option 3 — Dredging Plus Offsite Division Contained Disposal Facility (CDF) Such As Port of Long Beach UTIAND MODIFICATIONS To rOTI (1 4 12 What are the elements of the cost of Option 4 and the variations of that option? Harbor Resources Option 4 - Dredging Plus Division Contained Aquatic Disposal (CAD) GiWOTOTK MOOilCI1l1OIB lG TOTK -. *aa wa., ro buknvea �miacenx n n <a em b� Resources Division $6101 ,602 there a market for the beneficial reuse of contaminated diments? -For Options 2 and 3 landside disposal of contaminated sediments is an important factor. -Finding a market for the beneficial reuse of the dredged material was shown to affect project costs substantially. -We are taking advantage of the work commissioned by the Contaminated Sediments Task Force to identify solutions. -An example might be to truck the sediment to a regional landfill that does not have a sufficient source of material for the required daily cover so that we can eliminate the tipping fee 4 1 13