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#~~Q`~'~e~t G1ea~L~U a star trib an sn i 1 report
<br />3-
<br />THE POLLUTION THAT LIES BENEATH
<br />ockets of chemical-laden water percolate beneath the metro area. ~ slarne ~'
<br />These 20 lumes of ollution are the le ac of decades of industrial ~ ' xugo
<br />P P g Y `~~~4 IJnu Ickes
<br />Maple Grove ' (EastBetl,el 4
<br />waste disposal by private companies and goverrunent. Some com- ~ off ire map) ~,
<br />~ i ~iShorev~ew
<br />munities now use special filtration for every drop~of drinking water. ~ ,
<br />Brooklyn Park ~ North Oaks ,
<br />~~. ~ ~ (tJttiEe
<br />y ~ ArdF~n, ~ Bear
<br />£r1INA Pbfi1M~ ~~~ r••••~ Fndlf
<br />HOW THE PLUMES ~ ' ~ a, -. I3ilis ;~~ Twp: Brant
<br />Location: Edina, Hopkins,
<br />St. Louis Park WERE IDENTIFIED ~ ~-S ~~ Stillwater
<br />Pollutant: Vinyl chloride The maps reproducedinthis ' Plymouth \ ~.
<br />Deseiription: Edina shutdown a city report were createdforregulatpry ~t ~ ~~-New ~ _ ~ '
<br />~' i '~ ~ ~ Elmo
<br />well in 2003 afterthe chemical was orpublichealtlipurposes byengi- , ~ ~ ; =; Bzightnn ~ ' ,
<br />rJ r
<br />detected.Plumecoversan8.8-square- neerswhoinferredbraadazeasof '~ ~ E ! ' `'~'` .Maplewood ,;~< ` ~ ~ '~ ~,,-.,,, ~~ ;
<br />mile-area; part of it is under a former potential pollution usingwelltest - i . _ _~~ • ~ ,~, 1 ~x 1 ~ , } "~ ,;;
<br />wood-treatmentsi#e(2),howeverthe data Noteverypointbetweentwo , ~ _,_ _Jil,~ ~' ~ ~y ~* I ,~ ;'; ~,7 E-. Bayt<swn
<br />~ ~ St Iq . FarB ~~ --~ .~~ ~ St Paul (~/ ~ ~__ { Twp.
<br />• ., _. -
<br />source of vutyl chloride is unlrnown. sampledwells is necessarily con- F,. ~ )I~ ~ ,. ~~ t - ;
<br />taminated'i'herefore,rtcantbeas- '~: ~ ~ ~ ~ ~ ~~~~-~ ~~~ ~s - ~:
<br />tt ~ z i, I. ~ TA ~ sumed that every property within Y Minnetonka ~{ ~ 3~y jr^ % ~ ~ ~ ~ ~, ~ ~ T
<br />~ C t~'~ ~~ x ~ A le P 1. a tot ~ a mapped plume has pollution ~`
<br />i ~ ~.; ~ ,
<br />Location: St. Louis Park, Hopkins beneath it. When state agencies ~~ 1 J Minne lis ~.? % r ` y ^,~ ~ ` r~ ~;
<br />Pollutants: PAHs testprivate and muniapal wells, f ~ r ~ ~ ~ ~ ~
<br />Description: Chemicals from a wood owners are notified afttte resutts. ~ ' ( - ~ ` '. '' ~ ~ _ ~''~
<br />Edna i; s ~; ~3 °` A/-$ ,
<br />. Afton
<br />,:
<br />preservative plant(1917-1972)have TheStazTYibuneexamined ,; . ,
<br />s ~ ~
<br />„ ,
<br />required caazbonfiltrationsince1986 maps andotherpublici'emrds,an- -; x;~- _ ;- - a9a ,__ - ~t ;''y
<br />at two affected city wells. Plume is alyzed a Superfund database and Eden 1 ' " . , . !, ~ ti
<br />stable. Site is now a pazk. interviewed regulators, engineers, :Prairie i ~ `~ ~ ~ " " "
<br />pubficheatth'bfficialsandwater ~ Bloo on j~~ ~;; } : ~~~ xerghts '`" ~ ~ ;~
<br />ti L' .F lB ~ I z~ N ~ ~ ~ fi L t ~ supply managers to identify 20 r rmngt c3 ~ ~',~ ~ -
<br />l~ >!? 5 E N I C 51 `t' 1~ areas of significant groundwater ii ~ Eagan ~ t V r y z~ ~~ K, , ~ . , ,,~^,~
<br />Location: Minneapolis mntanunation in the seven-coon- Key for phone 12, "cry ~ '' ;• } ~~ ~~
<br />Pollutant: Arsenic - tymetro regionT'helist includes Concentrations of TcE: ;"~' ~~ ~~*" -
<br />Deseription:Former pesticide op- large areas of contamination anct ~- ', ~ 4 Rosemount " '~ t-' d ; wis;
<br />erations (1938-1968) left arsenic in a smallerones withnotablerisks. ~ ~ to 5 parts per billion t `-r~ ~•' ` ^
<br />~ ,~ _
<br />23-acre area of groundwater. Soil was Some plumes are excluded, `. A~ove 5 parts per billion , , _
<br />contaminatedoverabroaderarea. especially if pollutionremains (drinkiirgwaterstandard) ~ ~ -'~
<br />on site. Not all azeas of chemical _ ' •~"d '
<br />5Ii p R E Y3 A I~t YA id ~ - contamination had maps or suf- Key for plumes 14,15 and 16, I,akevil] e
<br />w K ~'r p L. u t~ E ficient data for inclusion Concentrations of P~BA:
<br />Location: Minneapolis Other information, including, Below 1 part per billion ,
<br />Pollutant: PCP affected aquifers and data sources, At or above 1 part per billion` ..t `
<br />Description: Wood tie treatment (1915- appearswith aninterattivemap at (drinking,materg~idance) Farmington / s~...~.r ...~..
<br />1972) at Soo Line railyard contaminat- Star'lYibune.com/groundwater. _ r ` - -
<br />~~ -emu.,. r,~~.r ~ ~~~_ ~.~b , -
<br />edgroundwater over a 100-block area ~~ ~F
<br />BILLY STEVE CLAY'['^N • Star Tribune -
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