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: ~ . ! ,:, ~, W. ~j.. ;........ .. ~.N ~ ~ ~ ,,t~: . ~ ~ ~ ~ ' I; N ~ ~J ~ ~::~ __ . i: ' ~ ;~''-- . :~:.,.,_..! ~ S I S f S ~ NS f 1~, ,l~ 6)~r/~ ~ty, LEGEND MW and LLW .~ Q:,, Management 1 0 ~1: Facilities ~ u~s~ :~ o' ~ :~. )~: :~ ,~ 1 mile 1.6 kilometers Management Facilities PLATE 1A Facility Boundary Stream 100 psi/ml tritium 500 psi/ml tritium _ 5,000 psi/ml tritium 10,000 psi/ml tritium 50,000 psi/ml tritium _ 100,000 psi/ml tritium Estimated extent of aquIfer zone IIB2 saturation Facility Boundary Stream 5 ug/l trichloroethylene 50 ug/l trichloroethylene 100 ug/l trichloroethylene 200 ug/l trichloroethylene 300 ug/l trichloroethylene Estimated extent of aquifer zone IIB2 saturation 1 mile o 1.6 kilometers 5 U B S U R F A ~ E S ~ i E N ~ E

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Palm 74 ~n -w of ~e ~~ Buho/ Gmund ~m- p~ or rhe So~h R;er S/~ ond o,;~red tom 4- and ~~me~ene boat gmund~ palmer ~78 S~emor~cc~~- ~echon of Me I bo~- ec or gee ~ ~d phofo of ~ Cap ~~r ~ being conduced oar We on awe 6~' ground OURS Her age. ~78 6 0 1 D r P 1 a 1 e s

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PLATE2 Plan viewofRockyFlatsEnvironmental Technology Site showing areas of plutonium soilcontamination. SOURCE Rocky Flats Environmental Technology Site. O ,~. . ~ :! At_ _, ~: '''\ ~ ~ _ . '~1 '\. - , . . ~ I: 7~-!~,']~ ( ~ At\ =~^ , 1-o~ ~~ 1 rim -a 'I ,_ ~ . cut - ~ i! ~~ ~ - ~ 9 1 ~ ~-`S ~ --in !~' ~ ^. ~~A- C C ~ ~: Q '0 0 0 Q ~ ~~ A;- ~ 04% ~ ~ or. ~L: ~ - ~ ) ~~o Out 00~\ \ ~ V ~ _; it) ~ I'm ~ ~ it- ~ \\: ~\:~-: ~ W - - ~ f- ~ - W. Off ~ ~ ~ rim ~:~ W=./ _~._._ ., I, ~~' _ _ ~ . r~ 1 _ >< . I _

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I i W -it ~ ~ ~ \ f~ 1 ~\~ ' ~ -it's'\ ~ W;~/ ~ -a 'dim ~N WA~ 'I- '< ~\^o it' ~ o) \~ A l 1 ~: is,; 'it ~ an-., ,,:~'\ '= -\ I- .~ ~ m:~ 3 _ ' i / =~_ ~K By_ ~ _ ~k_ ~ ~ 4^1~ \' JO - ~:: ~ N-=' A_ I o :: IN ~ ~ - =4 . ~ _ 1. ~ WN :: _ _ ~ _ IIAP ID~ 307 Rocky Flats Env~roDmeotal Tethildagy Site Pu 239+240 Probabilib > 3A3 pa/g Pu239+Z40 - /~ - ~" ~vith F~h~7e ~e Soil SamDliDr I~cRtioDs 05-T~ EXPLANAnoN Concentrr~tion L~b i pd l9} < 0.0B [~ ]~ 0.08 ~ 0.29 [3 Li ~3 0.30 - 0.89 0.90- 1.99 2.00 - 4.99 G.00- 9.99 > 10.00 Stendr~rd Faetr~ree Isoplot Linr~s 903 F~d lakes and ponds Streams. ditches, or oU~r~r drainage ~res F6ncss Ror.1cy Flrns b M4jor Roads Slicondery R RFETS Roods ndary 8c~h = 1: b1810 1 iochrepr._rner~pprtncltn6tr~v4301 T-.Tn "~ ~- I A Str~tr. r`On. r oordinat. Frol~tion Oolordo Comr,{ Zon Driturn: NAD27 .... U.S. Department of Energy Rocky Flats Environmental Technology Site . ~ _" . IG _ E__ 10lF F~0r~hE~ - dT~lTS~' rf~'co BE4OJ~ Junr'18, 18Ug o I o r P I a t e s . O O _ ~ 10

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PLATE 3 Plan view of Hanford Site showing locations of features in the 100 and 200 Areas and boundaries of major ground- waterplumes. The 100Area is located along the Columbia River and contains the site's production reactors. The 200Area, which is located in the central part of the site, contains waste management facilities. A. Radionuclide contaminant plumes. B. Hazardous chemical and nitrate plumes. (DWS = drinking water standards.) SOURCE: Richland Operations Office. PLATE 3A r r r _r r ' Of ~ ~ . i: ~~ ~ ::: ~ ~ ~ : ~ :, .: ~ ~ :: ~ ~ I. ~ ~ i. ;: ~ ~ . : L rr 100-N Area. Area A,., 1 l IQ o 1= U Pond ~ SCCn~ ~~ ~ ~J ~ ~ ~ :; \NJ US Ecology Landflli \~ <7 ~ _ ~~: .\ ~~;,:~~/ Supply \~ ~~\ \ :: ~ ~ ~ ~ ~~ ~ ~ System ~ ~ | ~ JO _Cityof ~ \\ I3;~nH O Major Radi on up ides in G round water Above DWS [1 Basalt Above Water Table Tritium (2,000 pCi/U ~ Tritium (DWS 20,000 pCi/U ~ Tritium (80,000 pCi/L) ~ Strontium-90 {DWS 8 pCi/L) - Uranium (MCL 20 ug/L) ~ Technetium-99 (DWS 900 pCi/U ~ lodine-129 {DWS 1 pCi/L) Richland North Area oan mmith C01 S-pterr~r 13,1993 2:30 PM 5 U B S U R F A C E 5 C E N C E

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r PLATE 3B r r _r r r r r __ i ,~~~,on' .~ e~ :: ~ \~: 4: I,.,.~:.~.. .-.. ~, ; ~ .. r ' 100-D Area :~N 100-H 100-N i~,, 100-K Affff?faf 100 F , Area 1 I j r, --~ ~ ! f i . ~~-~/'~, ~ 200-West_ 2~ ~ ~ 1 a A;e:3 ~ 0 ~ 200 Areas ~ ~Hanfo!d ~ - J Pphd ~ >~..;~f | BC Cribs `~ _ US Ecology ~ Gf Central \ Landfill \ Supply System 618-10 :5 i~ Grounds 1 400 Area \ (Fast Flux Test Facility) \ _ Major Hazardous Chomioals in Groundwater Above DWS fi f Nitrate from Off-Site in Groundwater Above DWS t_ Basalt Above Water Table ~ Chromium (MCL 100 ug/L'f Nitrate (20 mg/L) ~ Nitrate (MCL 45 mg/L) ~ Carbon Tetrachloride (MCL 5 ug/L) Triohloroethyfene ilMCL 5 ug/L) Dashed Where Inferred ~ D \v [, I .: ::: Richla~nd North ~ ' - ,, Area 2 4 B B I ~ ~ f f I 1 1 1 1 O t 2 3 4 5 mbs fo kilomffto. f; C`sfn ffffmefh_OD2 50pta?mefrfr iS, l99B 2:32 FM ( o I o r P a t e s

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- ~ . l. ~ . - - ~- Cs-137 Concentration (pCUg) 0.1 1 10 100 1~000 10,000 PLATE 4 Oblique view (looking from below the tanks toward the surface) showing cesium-137 contamination beneath the SX tank farm in 200 East Area at Hanford. Elevation is shown in feet above mean sea level, and the visible tanks are numbered with the prefix SX-. SOURCE Richland Operations Office. OF PLATE 5 Photo of mercury found in soils at the Y- 12 Plant at the Oak Ridge Site. SOURCE: Oak Ridge National Laboratory.