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3.4. SR 08-08-2011REQUEST FOR ACTION To Item Number Ma or & Ci Council 3.4. Agenda Section Meeting Date Prepared by Consent August 8, 2011 Rebecca Haug, Environmental Administrator Item Description Reviewed by Annual Monitoring of Old City Dump Tina Allard, Ci Clerk Reviewed by Robert Thistle, Interim City Administrator ~ Action Requested Staff recommends the following: Annual monitoring continues until future. plans for the site are known or no VOCs are detected. Background/Discussion Liesch Associates, Inc. completed the yearly groundwater sampling on July 14, 2011. Samples were taken at monitoring wells MW-2 and MW-3 within the dump. The Vandenberg and Hipsag residential wells located west and southeast of the dump were not tested. The Kirkeide and Brown residences, formerly located south of the dump, no longer exist. MW-1, formerly located north of the dump, was sealed in 2002 when a parking lot for the city park was constructed in the area where the well was located. FINDINGS ^ Volatile Organic Compound (VOC) detections were at a low level in MW-2. Tetrachloroethylene (PCE) was identified at 1.4 parts per billion (ppb) in MW-2 (down from 1.6 ppb in 2010). The PCE level detected in MW-2 is consistent with historic low PCE concentrations. Low levels of Trichloroethene (TCE) were detected at MW-3. The TCE was identified at a level of 1.1 ppb (down from 1.4 ppb in 2010). TCE was not detected in 2009, 2007 or 2005 but has been historically detected since 1989 at decreasing levels. VOC concentrations at the monitoring well locations continue to be stable and consistent with previous samplings of these wells. The concentrations are below current Minnesota Department of Health (MDH) Health Risk Limits (HRLs) for drinking water. PCE and TCE levels axe currently set at 5 ppb. Attachments July 2011 Groundwater Monitoring Results for the Old City Dump -Tom C. Johnson, Leisch Assoc., Inc. -July 29, 2011 Action Motion by Second by Vote •~- t ~ :I ~~' atC\~ ,~~:,I~ } '~,i?x{3G~ _ _ ~NG1~fE:_z~ E~IVIF_r:'-~~aTAL SCIENTISTS Tiny 29, 20> 1 I~?I:s. Rebecca Hang City of EII{ River ~rivlronn}ental I~ivlsiotZ 13065 ~3roa~t~ Parkway EIk River, SIN 55330 IZE July 2U11 Greuud~~vater IVrajtifori>;zg Results Oicl City Duznp, Elk Itivej~, i~~Iinries~ta Dear Rebecca; Enclosed. please find the 2t~11 annual water gtaalit}j data. fc~r tiie Old' EIk River Dtttnp site Iocat~d so~itheastof the City flf Elk River (Ff~ure 3), ?tie grotand~vater sampling eras c©n~pleted ~n July l~, 2011 by Liesch Associates, Inc. {Licsch). Saanple locations inckzded_monitoring wells I~1W~2 atld M1~-3 near Elie forrn,er City duanp site {Fi~;tire Z). M-i forn~erl~ located north of the dump «; asscaled iit_2~02 when a parking lot for th.e~c:it~~arh vvas coi~stX~ucie~~i ia~ the- area 1~e ~~~ell wns l~~ated. (aver #~n-y~ea~rs t~£ va~t~r +~nality m~oi~it~7-iiz~ at tiar~s tip-gradient tit~eil locafoai ev%denced uo detectio~ls ol'VOC's therefore the well was not replaced. Laboratory results of the June 2011 samhlir7g event (T'at~le ~) indicate`lo~v Level VUC detecti.o~xs of Tetrachloroethca~c (PCE) in MVO'-2 anti Trichloroethene {TCE} in M~~-3, PCE was detected in i~'1L~~-2 at a Level of l.4 parts }qtr ~illio~~ {I~hI~) a~ICi TCE teas detected ial ~I~V-~ at a Iev~l ofl.l pt~b. The VCs detected duritl~ the 201 I sanlplin~ event are corisisfent with histoa~ic low coalcenta~atioaas fi~:and in grouud~vater saa7~ples collected fi•oan 1~11~-2 <~aid MW-3. Vdafer level data indicates that the w°aier fable at il~e site a~ei~~ains col~sistor~t with water levels recorded over that last ~ years (attached ~~'clt H~~dl•ogi~apl~). Gro~nldwatcr l1ow direction co~ild a~ot be calculated as a aninin~um of tt7ree anoniforiaig points are needed for this detern~ia~atioa7 and M~~-I ~~~as sealed. Historic ~ronndwater fio~v direction? for the site has teen. a st~~athtivesterly direction, towards tl~e Mississippi. River. Presumably this has not changed. ,lhe VOC concentrations at the ai~onitoring well locations {M~-~ aa~d M~'J-3) have been relatively stable over fhe last few monitol•ing events. TCE was not defected in MW-3 in 200.5, 200? and 2009. bnt has been hi tonically det~eted since 1989 at deca-easia~g levels. PCE levels detected in MW-2 have remained relatively static since 1989, PCE and ~'CE concentrations are cunnently below Minnesota Department of Health (MDH} Health Risk Limits {HRLs~ for drinking water. MI~H HRLs for PCE and TCE are currently set at 5 ppb. Based on informati©n gathered d>.aring the 2011 a ~.y~~+~,iiescFi.~~rrq :~, ~i~stt~ AssocinrES, Ilac. ~ ~ 3~+OQ i Sr11 AvEr~~uE NOR,Ti= x: ~4iNt~E~,PO~IS, MN 55441 ~= 763t489-3100 Fx FAX: 76314f39-310j Page 2 July 29, 2011 sampling event it appears that groundwater elevations, levels and types of VOCs detected in the monitoring wells remains consistent with data from the last few years. Please feel free to contact me at 763-489-3174 or John Lichter at 763-489-3120, should you have any questions. Sincerely, LIESC,~I SSOCI S, INC. y +/ Tom C, Johnso Environmental Scientist Attachments: Figure 1 -Site Location Map Figure 2 -Existing Conditions Map Table 1-Comprehensive Water Quality Data Chart 1 -Water Level Data Laboratory Report -- June 2010 Waenv1740191elkriver Itr07-1l.dac www.liesch.com .:. THE LIESCH COMPANIES w MINNEAPOLIS w MILWAUKEE w PHOENIX a LOS ANGELES "' , -:~:: ..J~ ~-. - - . 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V]~ O d .-r ..i v ;d y~_ U .b C~ r ` ~ . - i y , 7 , 1 ~ ~ +~a W ~ ~ .-r ~p ~ 1p y ~ d ~ ~ CQ ~ _ y ~ _ . ¢" ~ 00 O U v ~ {yy '$ O ~ ""~ - ~°~' .~ ~~ ~ _ a - ~ '" > ~od _ -. ~ 3:' M ~ n. ~ ~_ ~ ~ ; ~,: .d = N ~ _ - ~ t !-~ ~' ~ ~ '~ . " :. ~ r ~ - - ~ ~ ... ~ .,_ o ,, ~, N N"'- ^ A ~~. ~]€' "~,~ - ~ ~ ~~ ~ ~ ~ ~, ~ Q. A cA i i i ~d 0 ~ i ~~ a> ~ u a ~ ~ h~t ~ y~y..~~ ~ ltl U w V1 ~ p O y O ~' U ~ bA~ ~ S~. O ~ G O~ , ~ I~ O ~ ~' c~ A ~ ~+ .~~' b ~~ ~ O ~ f+' 'L7 N y ~ ~ AO N LL O v v, W y ~ ~ Q y N ~ ~" p y O ~ N ++ :w ~ U v e ,,, 'd N 4C O C ~ ~ N ~ ~ ,d .~ 'k s7 H a ~~ a i . ,0 3 x~ " ~~ ~~x . ~ ' N ~ ~ yam., ~ "~ ~ ~ r-~ ~ 0 Technical ~erviees, lnc. www.legend-group.com July 28, 2011 Mr. Tam Johnson Liesch Associates, Inc. 13400 15th Avenue North, Suite A Plymouth, MN 55441 Work Order Number: 1103157 RE: Elk River Dump 88 Empire Drive St Paul, MtJ 55103 Tel: &51.642-1150 Fax: 657-642-1239 Enclosed are the results of analyses for samples received by the laboratory on 07/14111. If you have any questions concerning This report, please feel free to contact me. All samples will be retained by LEGEND, unless consumed in the analysis, for 30 days from the date of this report and then discarded unless other arrangements are made. MDH Certification ff027-123-295 Prepared by, LEGEND TECHNICAL SERVICES, WC ~. Q tP~ Terri Olson Client Manager II tolson @lege nd-g roup.com ~~~ William Dahl QAIQC Coordinator wd a h I@ I eg a nd -g ro u p. co m Legend Technical Services, Inc. The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. Technical Services; Inc. wVfLV.legend-grOUp com 88 Empire Drive St Paul, MN 55103 Tet: 651-642-1150 Fax: 651-642-1239 Liesch Associates, Inc. Project: Elk River Dump 1340015th Avenue North, Suite A Project Number: [none] Work Order #: 1103157 Plymouttr, MN 55441 Project Manager: Mr. Tom Johnson Date Reported: 07/28/11 ANALYT[CAL REPORT FOR SAMPLES i Sample ID Laboratory iD Matrix Date Sampled Date Recetved i MW-2 1103157-01 Water 07114/1110:20 07/14!11 13:15 MW-3 1103157-02 Water 07/1411111:00 07/14/11 13:15 Trip Blank 1 7 03 1 57-03 Water 07/11!11 00:00 07!14/11 13:15 Shipping Gontainer Information Default Cooter Temperature (°C}: 3.1 Received on ice: Yes Temperature blank was present Recetved on ice pack: No Received an melt water: No Ambient: No Acceptable [IH/150 only}: No Custody seals: Na Case Narrative: MDH does not offer certification for the following parameters: dichlorofluoromethane, tetrahydrofuran, and 1,1,2-trichlorotrifluoroethane in the 82608 analysis. Legend Technical Services, Inc. The results in this report apply to tha samples analyzed in accordance with the chain of custody document: 7hls analylica! report must be reproduced In its entirefy. Page 2 of 14 Technical Services; inc. W~vW.leger7d-group. com 88 Empire Drive St Paul, MN 55103 Tel: 651-642-1150 Fax: 65i-642-1239 a Liesch Associates, Inc. Project: Elk River Dump 1340015th Avenue North, Suite A Protect Number: [none) Work Order #: 1103157 Plymouth, MN 55441 Projec# Manager: Mr. Tom Johnson Date Reported: 07128/11 VOC 82606 Legend Technical Services, Inc. Analyte Result RL MDL Units Dilution Batch Prepared Analyzed Method Notes MW-2 (1103757.01) Water Sampled: 07H4111 10:20 Received: 07114!11 13:'!5 1,1,1,2-Tetrachloroethane <1.0 7.0 0.29 uglL 4 B1G2013 07/20171 07!20111 EPA8260B t,t,i-Trichtorcethane <7.0 1.0 0.18 ug/[. 7 ° 1,1,2,2-Tetrachloroethane <1.0 1.0 0.16 uglL i " 1,1,2-Trichlwcefhane <1.0 T.6 0.19 ug1L i " 7,1,2-7richlorotritiuoroethane <1.0 1.0 0.25 uglL i " " 7,1-Dichiorcethane <1.0 1.0 O.TS ugrL 1 " 1,1-Dlchiorcethene <1.0 7.0 0.24 ugrL 4 " i,1-Dichloropropene <1.0 T.0 0.74 ugrL 1 " " i,2,3-Trichlwobenzene c5.0 5.0 0,35 ug/i. 1 ' 1,2,3-Trichforopropane <2.5 2.5 0.22 ug/L 1 " 1,2.4-Trichtorobenzene <5.0 5.0 0.30 ug1L 1 " " 7,2,4-Tdmethylbenzene <1.0 1.0 0.072 ug/L 1 » " 1,2-Dibromo-3•chioropropane <5.0 5.0 0.40 uglL 1 ` ' 1,2-Dibromcethane (EDB) <2.5 2.5 0.15 ug/t. i " 1,2-Dichiorobenzene e7.0 1.0 0.12 ug/l. T ' 1,2-Dichloroethane <7.0 1.0 0.26 uglL i " 1,2-Dichloropropane <1.D 1.0 0.19 ugrL 1 ' 4,3,5-Trimethylbenzene <1.0 1.0 O.Ti ug1L 1 ` 1,3-DiChlorobenzena <1.0 1.0 0.15 ucyL i ' 1,3-Dich3oropropane <T.0 1.0 0.15 ug/L 1 ° ' 4,4•Dichiorobenzene <T.0 1.0 4.084 ug/L 1 " " " 2,2-Dichloropropane <5.0 5.0 0-66 uglL i ` 2-Butanone <20 2p 0.85 ugtL i " 2-Chloroioluene <7.0 i.0 0.081 uglL 1 " 4-Chloroioluene <i.0 1.0 0.11 uglL 1 ' Acetone <20 20 3.8 uglL 1 ' Ally) chloride <5.0 5.0 0.51 uglL 1 ` Benzene <1.0 1.0 0.07i uglL i ° Bromobenzene <1.0 1.0 0.082 ug/L 1 " Bromochtoromethane <7.0 4.0 0.20 ug1L 1 " Bromodichloromeihane <1,0 T.0 0.23 ug1L 1 " Bromoform <5.0 5-0 0.26 ug1L 7 " Bromomethane <5.0 5.0 0.32 ug+L 7 " Carbon tetrachloride <7.0 1.0 0.15 ug1L 1 " Chtwobenzene <1.0 7.0 0.20 uglt. 1 ' Chlwoethane <2.5 2.5 0.27 ug/l. 1 " Chbrofwm <4.0 7.0 0.15 uglL 1 " Chloromethane <2.5 2.5 0.24 uglt. 1 ' Legend Technical Services, tnc. The results in fh/s report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be nproduced in its entirely. Page 3 of 14 Technical Services, Inc. WWw.tegend-group.com 88 Empire Drive St Paul, h1N 55103 Tei: 851-642-1150 Fax: 651-642-1239 Liesch Associates, inc. Project: Elk giver Dump 1340015th Avenue North, Suite A Project Number: [none] Work Order #: 1103157 Plymouth, MN 55441 Project Manager: Mr. Tom Johnson Date Reporfed: 07/28111 VOC 82606 Legend Technical Services, inc. ~Anaiyte Result Rl_ MDL Units Dilution Batch Prepared Analyzed Method Notes MW-2 {1103157-01] Water Sampled: 07/14111 10:20 Received: 07/14/11 13:15 cis-1,2-Dlchlorcethene <1.0 1:0 0.12 uglt. 1 81G20i3 07/20/11 07!20!11 EPA8260t3 cis-1,3-D'ichloroproperse <i.0 1.0 0.18 ug1L 1 " " " Dibromachioromeihane <2.5 2.5 0.28 uglL 1 ' » » Dibramomethane <2.5 2.5 0.24 uglL 1 ' " Dichtorodifluoromethane <5.0 5.0 0.25 uglL 1 " " " Dichlorofluoromethane <i.0 1.0 0.21 ug/L 1 » EthN ether <5.0 5.0 0.27 ugn. 1 " " Eihylbenzena <1.0 1.0 0.28 ugrL 1 " » Hexachlorobutadiena <10 10 0.42 ugrL i " lsopropylbenzene <1.0 1.0 0.12 ugiL 1 " " m,p•Xylene <2.0 2.0 0.57 ugll- 1 " Methyl Isobutyl ketone <5.0 5A 0.40 uryL 1 " » " » Methyl fert•buryi ether <1.0 1.0 0.16 uglL 1 " " Methylene chloride <5.0 5.0 0.85 ug1L 1 » Naphthalene <5.0 5.0 0.30 ug~L 1 " " n-8utylbenzene <2.5 2.5 0.15 uglL 1 " n-Propylbenzene <1.0 1.0 D.094 ug/L 1 " o-Xylene <1.0 1.0 0.19 uglL 1 " " p-lsoprapyltoluene <2.5 2.5 0.14 uglL 1 " " sec-t3utylbenzene <1.0 1.0 0.11 ug/L 1 ` " Styrene <1.0 1.0 0.21 ugrL i " " terf•BUty4benzene <1.0 1.0 0.091 ug/L 1 » Tetraehloroethene 1.4 1,0 0.28 ug/L 1 " » Tetrahydrofaran <20 20 0.75 uglL 1 " " Toluene <1.0 1.0 0.10 ug1L 1 " " trans-i,2AichEOrcethene <1.0 1.0 0.056 uglL 1 " " " trans-l,3-Dichloropropene <1.0 t.0 0.14 uglL 1 " " " Tricttloroethene <1.0 1.0 0.18 uglL 1 " " " Trichbrofluoromethane <1.0 1.0 0.29 ucyL 1 ' Vinyl chloride <1.0 1.0 0.21 ug1L 1 " » " Surrogate:4-8romoRuorobenzene ?09 80-?2? % » Surrogate: Dibromofluoromelhane 903 78.3-?2? % » Sunooate: i"oluene~l8 f03 80-?20 % " MW-3 (1103157.02) Water Sampled: 07!14!11 11:00 Received: 07!14111 13:15 1,1,1,2-Tetrachforoethane <1.0 1.0 0.29 uglL 1,1,1-Trichloroethane <1.0 1.0 0.16 ugA. 1,1,2,2-Tetractdorcethana <1.0 1.0 0.16 uglL 1,1,2-TrichloroeNane <1.0 i.0 0.19 uglL 1,1,2-Trichl0totdfluoroethatte <1.0 1.0 0.25 UgIL 1 81G2013 07/20/?1 07!20!11 EPA 82608 1 - - - 1 - 1 1 " - Legend Technical Services, lnc. The results in this report apply to the samples analyzed in accordance tvifh the chain of custody document. Thls anafyfrcaf report must be reproduced in its enfirety. Page 4 of i4 TechnEcal Services, Inc. www,lsgsfid-group.com 88 Empire Drive St Paul, MN 55103 7e1: 651-642-1150 Fax: 651-642-1239 Liesch AssoGates, inc. Project: Elk River Dump 13400 i5th Avenue North, Suite A Project Number. [none) Work Order #: 1103157 Plymouth, MN 55441 Project Manager: Mr. Tom Johnson Date Reported: 07/28/i 1 voc sasag Legend Technical Services, Inc. Analyte Result RL MDL Units Dilution Satch Prepared Analyzed Method Notes MW-3 (1103157-02) Water Sampled: 07/14111 11:00 Received: 07/14/71 13:15 1,1-Dichloroelhane <1.0 f.0 0.15 ugrL 7 B1G2013 07!20/1't 07/20/11 EPA8260B 1,1-Dichloroethene <1.0 1.0 0.24 uglL 1 " 1,1-Dichtoropropene <1.0 1.0 o.i4 ug1L 1 " 1,2,3-Trichlotobenzene <5.0 5.fl 0.35 ug4 7 . 1,2,3-Trichtoropropane <2.5 2.5 0.22 ugJL 1 " " " " 1,2,4-Trichlorobenzene <5.0 5.0 0.30 uglL i " 1,2,4-Trimethylbenzene <1.0 1.0 0.072 uglL 1 " 1,2-Dibroma3-chloropropane <5.0 5.0 0.40 uglL i " " 1,2-pibromoethane (EDB) <2.5 2.5 0.75 ug1L 1 " 1,2-Dichlorobenzene <1.0 1.0 0.12 ug1L 1 1,2-Dichloroelhane <1.0 1.0 0.26 ugh. 1 " " " 1,2-Dichloropropane <7.0 1.0 0.19 ug1L 7 " ` 1,3,5-Trimethyibenzene <1.0 1.0 0.17 uglL i " 1,3•Dichbrobenzene <1.0 1.8 0.15 uglL t " " 1,3-Dlchloropropane <1.0 1.0 0.76 ug2 1 " 1,4-Dlchlorobenzene <1.0 1.0 0.081 uglL 1 " 2,2-Dichloropropane <5.0 5.0 0.66 uglL 7 ' 2-Butanone <20 20 0.65 ugrL 7 " 2-Chiorololuene <1.0 1.0 0.081 uglL 1 " 4•Chloro[ofuene <1.0 1.0 0.11 ug+L 7 " " Acetone <20 20 3.8 uglL 7 " Ally! chSodde <5.0 5.0 0.51 ug/l 1 " " Benzene <1.0 1.0 D.071 uglL i " Bromobenzene <1.0 7.0 0.082 uy/L 1 " Bromochloromelhane <1.0 1.0 D.20 ug1L 1 ' " eromodichtoromethane <1.0 1.0 0.23 ug1L 7 " Bromoforrn <5.0 5.0 0.26 ug+L 7 " Bromomethane <5.0 5.0 0.32 ug2 1 " " CarbonleUachEoride <1.0 1.0 0.15 ugA. 1 ' Chlorobenzene <7.0 1.0 0.20 ug1L 1 " Chlorcethane <2.5 2.5 0.27 ug/L 1 ' Chloroform <1.0 1.0 0.15 ugR. 1 " ' Chloromethane <2.5 2.5 0.24 ug2 1 ' cis-1,2-Dichloroethene <1.0 7.0 0.12 uglL 1 " Gs-1,3-Dichloropropene <1.0 1.0 0.18 ugA. 1 " ' Dibromochtoromethane <2.5 2.5 0.26 ug>L 1 " Dibromomethane c2,5 2.5 0,24 ug/L 1 " Dichlorodifluoromethana <5.0 5.0 0.25 uglL 1 ' Dict~orofluoromethane <1.0 1A 0.21 ug/L 1 " " Legend Technical Services, Inc. The results in this report apply fo the samples analyzed in accordance with fhe chain of custody document. This analytical report must be reproduced in its entirely. Page 5 of 14 Technical Services, Inc. www,iegend-group.com 88 Empire Drive SL Paul, MN 55103 Tel: 651-fi42-1150 Fax: 651-fi42-1239 Liesch Associates, lne. Project: Elk River Dump 13400 15th Avenue North, Suite A Project Number. [nonej Work Order #: 1103157 Plymouth, MN 55441 Project Manager: Mr. Tom Johnson Date Reported: 07/28/11 VOC 82608 Legend Technical Services, Inc. IAnalyte Result RL MDL Units Dilution Batch Prepared Analyzed Method Notes MW-3 (1 1 031 57-02) Water Sampled: 07!14!11 11:00 Received: 07114/11 13:15 Ethyl ether <5.0 5.0 0.27 uglL 1 B1 G2013 07!20111 07!20!11 EPA 82606 Ethylbenzene <1.0 1.0 0.28 uglL i ' Hexachlorobutadlene <10 10 0.42 ugrr. 1 ' tsopropySbenzene <1.0 1.0 0.12 ug1L 1 " m,p-Xylene <2.0 2.0 0.57 uglL 1 " Methyl isobutyl ketone <5.0 5.0 0.40 ug/l 1 " ' Methyl tent-butyl ether <3.0 1.0 0.16 ugtL 1 " " Methylene chloride <5,0 5.0 0.85 ugJL 1 " Naphthalene <5.0 5.0 0.30 ug/L 1 " ° n-Butylbenzene <2.5 2.5 0.15 uglt. 1 " n-Propylbenzene <1.0 1.0 0.094 ugrL 1 " " o•Xylene <1.0 1.0 0.19 ug1L 1 " " p-lsopropyllofuene <2.5 2.5 0.14 ug1L 1 " ° sec-Butyibenzene <t.0 1.0 0.11 ug1L 1 " Styrene <1.0 1.0 0,21 uglL 1 ' tent-Butylbenzene <1.0 1.0 0.091 ug1L 1 " Tetrachloroethene <1.0 1.0 0.28 uglL 1 " " Tetrahydrofuran <20 20 0.75 ug/L i ° Toluene <1.0 1.0 0.10 ugrL 1 " Frans-l,2-D'~hroroethene <1.0 1,0 0.055 uglL 1 ` trans-l,3-Dkhloropropene <1.0 1.0 0.14 uglL 1 ' Trlchforoethene 1.1 1.0 0.18 uglL 1 " Trichloroftuoromethane <1.0 1.0 0.29 ug1L 1 " " Vinyl chloride <i.0 1.0 0.21 uglL 1 » " Surrogate:9-Sron~oiluorobenzene 98.9 80-i2! Yo " Surrogate: AibromoRuoromethane 108 79.9-i2i % " Surrogate: Toluane-d8 101 80-120 % " " Trip Blank (1103157.03) Water Sampled: 07!11!11 00:00 Received: 07114!11 13:15 1,1,1,2.7etrachlorcethane <1.0 1.0 0.29 uglL 1 B1G2D73 07120/ii 07@0111 EPA82611B 1,1,1-Trichlorcethane <1.0 1.0 0.16 uglL 1 ' 1,1,2,2-Tetrachlorcefhane <1.0 1.0 0.16 ugtL 1 " 1,1,2-Tr9chloroethane <1.0 1.0 0.19 uglt_ 1 " 1,1,2-Trichiorofrifluoroethane <1.0 1,0 0.25 uglL 1 " ° 1,1-Dlchloroefirane <1.0 1.0 0.15 ugtl. 1 " 1,1-Dichbroethene <1.0 1.0 0.24 uglL 1 " 1,1-Dichloropropene <1.0 1.0 0.14 ugn. i " i,2,3-Trichlwobenzene <5.0 5.0 0.35 ugtL 7 " 1,2,3-Trichfaropropane <2.5 2.5 D.22 ug1L 1 " 1,2,4-Trichlarobenzene <5.0 5.0 0.30 uglL 1 " Legend Technical Services, Inc, The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in Fts entirety. Page B of 14 Technical Services, inc. www,tegond-group.cam 88 Empire Drive St Paul, MN 55103 Tel: 651-642-1150 Fax: 651-542-1239 Liesch Associates, Inc. Project: Elk River Dump 1340015th Avenue North, Suite A Project Number: [none] Worfc Order #: 1103157 Plymouth, MN 55441 Project Manager: Mr. Tom Johnson Date Reported: 07/28/11 VOC 82608 Legend Technical Services, Inc. ~Analyte Result RL MDL Units Dilutlan Batch Prepared Analyzed Method Notes Trip Blank (1103157-03) Water Sampled: 07111N1 OD:00 Received: 07/14111 13:15 1,2,4-Trimethylbenzene <1.0 1.0 0.072 ug1L 1 61G2613 07/20/11 07/20H1 EPA 82608 1,2-Dibromo-3-chlaropropane <5.0 5.0 0.40 ug1L 1 " " 1,2-Dlbromoetltane {EDB) <2.5 2.5 0.15 uglL 1 ` 1,2-Dfchbrobenzene <i.o 1.0 0.12 ucyL 1 ` 1,2-Dichbrcethane <1.0 1.0 0.28 uglt. 1 " " ;,2•Dichforopropane <1.0 1.0 0.19 ugly 1 ' 1,3,5-Trimethylbenzene <1.0 1.0 0.11 ug1L 1 ' 1.3-Dichlorobenzene <1.0 1.0 0.15 ugti ; " " t,3-Dichloropropane <1.0 1.0 0.16 ug/L 1 " 1,4-Dichlorobenzene <1.0 1.0 0.081 ug1L 1 ` 2,2-Dichloropropane <5.0 5.0 0.86 ugrL 1 ` 2-eulanone <20 20 0.85 ugrL i " " 2-Chlorotoluene <1.0 1.0 0.081 uglL 1 " " 4•Chtarotaluene <1.0 1.0 0.11 ugti 1 ` Acetone <20 20 3.8 uglt. f " ' Allyl chloride <5.0 5.0 0.51 uglL 1 ' Benzene <1.0 1.0 0.071 uglL 1 " " Bromobenzene <1,0 1.0 0.082 ug1L 1 " " Bromochtoromethane <7.0 1.0 0.20 ugli. 1 " Bromodichloromethane <1.0 1.0 0.23 uglL ; " Bromoform <5.0 5.0 0.26 uglt_ 1 " $romomethane <5.0 5.0 0.32 ug1L ; " Carbon tetrachloride <1.0 1.0 0.15 uglL 1 " Chlorobenzene <7.0 1.0 0.20 uglL 1 " Chlorcethane <2.5 2.5 0.27 ug/L 1 " ' Chloroform <t.0 1.0 0.15 ugtL 1 " Cfiloromethane <25 2.5 0.24 ug1L 1 " cis-1,2-Dichloroethene <S.0 1.0 0.12 ug4 1 " " Cis-1,3-Dichloropropene <LO 1.0 0.18 ugrt 1 ° Dibromochloromethane <2.5 2.5 0.26 uglL 1 " Dibromomethane <2,5 2.5 0.24 ug1L 1 " Dichlorodifiuoromethane <5.0 5.0 0.25 uglL i " " Dichtorofluoromethane <1.0 1,0 0.21 uglt. 1 ° " Ethyl ether <5.0 5.0 0.27 ug/t 1 " Ethylbenzene <1.0 1.0 0.28 ugrL 1 " Hexachtorobutadiene <10 10 0.42 uglL 1 " ` fsopropylbenzene <;.0 1.0 0.12 ug1L 1 " " " m,p-Xylerte <2.0 2.0 0.57 ug1L 1 " " Methyl isobutyl ketone <5.0 5.0 0.40 uglt. 1 ' Legend Technical Services, Inc. The results in this report apply to fhe samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. Page 7 of 14 .~ Technical Services, Inc. vrww.legend-grpup.com 88 Empire Drive St Paul, MN 55103 Tel: 65142-1150 Fax 551-642-1239 Liesch Associates, Inc. Project: Elk River Dump 1340015th Avenue North, Suite A Project Number: [none] Wark Order #: 1103157 Plymouth, MN 55441 Project Manager: Mr. Tom Johnson Date Reported: 07/2$!11 VOC 82606 Legend 'technical Services, Mc. Anaiyte Result RL MDL Units Dilution Batch Prepared Analyzed Method Notes Trip Blank (1103157.03) Water Sampled: 07!11!11 00:00 Received: 07114!11 13:15 Methyl ter!-butyl ether <1.0 1.0 0.15 ug1L 1 B1G2013 07/20!11 07/20/11 EPA 82606 Methylene chloride c5-0 5.0 0.85 ug/L 1 " Naphthalene <5.0 5.0 0.30 ug/L 1 " n-Bulylbenzene <2.5 2.5 0.15 uy/L t ' n-propylbenzene <1.0 1.0 0.094 ug/L 1 o-Xylene <1.0 1.0 0.19 uglL 1 " " p-lsopropyltoluene <2.5 2.5 0.14 ugll. 1 " sec-Butylbenzene <1.0 1.0 0.11 ug1L 1 " ' Styrene <1-0 1.0 0.21 uglL 1 " tert•Butyibenzene <1.0 1.0 0.091 uglL 1 " Tetrachioroethena <1.0 1.4 0.28 ugll. 1 " " Tetrahydrofuran <20 20 0.75 ug1L. 1 " Toluene <1.0 1.0 0.10 ug1L 1 " trans-l,2-Dichbroethene <7.0 1.0 0.056 ug/L i " trans-1.3•DicFttoropropene <1.0 1.0 0.14 ug1L 1 ' Trictrloroethene <1.0 1.0 0.18 ug/L 1 " 7richtoroRuoromathane <1.0 1.0 0.29 ucyL 1 ' Vinyl chloride <1.0 1.0 0.21 ug1L 1 " Surrogate:4-Bromolluorobenzene 99.7 80-i2f % " Surrogate: DibromoQuoromethane 103 79.9-12i % " " Surrogate: Toluene-d8 f02 80•i20 Y " " Legend Technical Services, inc. The results in this report apply to the samples analyzed in accordance write the chain of custody document. This analytical report must be reproduced to its entirety. Page 8 of 14 i f Technical Services, inc. www.iegertd-graup.com 88 Empire Drive St Paul, MN 55103 Teh 651-642-1150 Fax: 651-642-1239 Liesch Associates, Inc. Project: Eik River Dump 13400 15th Avenue North, Suite A Project Number. (none] Work Order #: 1103157 Plymouth, MN 55441 Project Manager: Mr. Tom Johnson Date Reported: 07/28/1 t VOC 82608 - Quality Control Legend Technica} Services, Inc. Spike Source %REC %RPD ~naiyte Result RL MDL Units LeveE Result %REC Limits %RPD Limit Notes Batch B1G2013 -EPA 5030 Water (Purge and Trap) Blank (B1G2013•BLK11 Prepared & Analyzed: 07/20/11 1,1,1,2-Tetrachiorcethane < 1.0 1.0 0.29 ug2 1,1,1-Trichlorcethane < 1.0 1.0 0.16 ucyL 1,1,2,2-TeVachloroethane <1.0 1.0 0.16 ugrL 1,1,2-Trichbrcethane < 1.0 1.0 0.19 ug2 1,1,2-Trichlorotrifluorcethane < 1.0 1.0 0.25 uglL 1,1-Dichloroethane < 1.0 1.0 0.15 ug4. 9,1-Dichloroethene < 1.0 1.0 0.24 ugrL 1,1-Dichloropropene < 1.0 1.0 0.14 ug1L 1,2,3-Trichlorobenzene < 5.0 5.0 0.35 ug/L 1,2,3-Trichloropropane <2.5 2.5 0.22 uglL 1,2,4-Trich3orobenzene <5.0 5.0 0.30 uglL 1,2,4-Trimethylbenzene < 1.0 1.0 0.072 «grL 1,2-Dibromo-3-chloropropane <5.0 5.0 0.40 ugA. 1,2-Dibromcethane(EDB) <2.5 2.5 O.iS uglL 9,2-Dlchlorobenzene < 9.0 1.0 0.12 ugJl. 1,2-Dichforoethane < 1.0 1.0 0.26 uglt. 1,2-Dichloropropane < 1.0 1.0 0.19 ugrL - 1,3,5-Trimethylbenzene <1.0 1.0 0,19 ug1L 1,3-Dichiorobenzene < 1.0 1.0 0.15 ugtL 1,3-Dichtaropropane <1.0 1.0 0.16 uglL 1,4-Dichtorobenzene < 1.0 9.0 0.081 ugiL 2,2-Dichloropropane <5.0 5.0 0.66 uglL 2-Butanone <20 20 0.65 uglt- 2-Chlorofoluene < 1.0 1.0 0.081 ug/L. 4-Chlorotoluene < 1.0 1.0 0.91 ug/l Acetone < 20 20 3.8 uyL Aliyi chloride < 5.0 5.0 0.51 ugR. Benzene < t.0 9.0 0.071 OQ1L Bromobenzene < 1.0 t.0 0.062 uglL Bromochloromethane < 1.0 1.0 0.20 uglL Bromodichloromethane < 1.0 1.0 0.23 ug1L Bromoform <5.0 5.0 0.26 ug/L Bromomethane <5.0 5.0 0.32 ugJL Carbon tetrachloride < LO 1:0 0.15 ugA. Chiorgbenzene < i.0 1.0 0.20 ug1L Chlorcethane <2.5 2.5 0.2T uglL Chloroform < 1.0 1.0 0.15 uglL Chloromelhane <2.5 2.5 0.24 ugll Gs-1,2-Dichtorcethene < 1.0 1.0 0.12 ugrL i Legand Technical Services, Inc. The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its enllrety. Page 9 of 14 8 Technical ~ervlces, Inc. tivww.leyend-greup. cam 88 Empire Drive St Paul, MN 55103 Tel: 851-842-1750 Fax: 651-642-1239 Liesch Associates, ]nc. Project: Elk River Dump 13400 15th Avenue North, Suite A Project Number. [none] Work Order #: 1103157 Plymouth, MN 55441 Project Manager: Mr. Tom Johnson Date Reported: 07!28111 VOC 82606 -Quality Control Legend Technicai Services, Inc. Spike Source %REC %RPD ~nalyte Result RL MDL Units Level Result %REC Limits %RPD Limit Notes Batch 81 G2013 • EPA 5030 Water {Purge and Trap) Blank (BiG2013-BLK1} Prepared & Analyzed: 07/20!11 cis-1,3-Dlchloropropene < 1.0 1.0 0.18 ug/L Dibromochloromethane <2.5 2.5 0.26 ugrL Dibromomethane <2.5 2.5 D.24 ug1L Dichlorodifluoromethane <5.0 5.0 0.25 ug1L Dichlorofluoromethane < 1.0 1.0 0.21 ug/L Ethyl ether <5.0 5.D 0.27 ugrL Ethylbenzene < 1.0 1.0 0.28 ugrL Hexachlprobutadlena < 10 10 0.42 uglL Isvpropylbenzene < 1.0 t.0 0.12 uglL m,p-Xytene <2.0 2.0 0.57 uglL Methyl isobutyl ketone <5.0 5.0 0.40 ugrL Methyl tart-butyl ether < t.0 1.D 0.16 uglL Methylenechlorlde <5.0 5.0 0.85 ug/L tdaphthafene < 5.0 5.0 0,36 ug1L n-Butylbenzene <2.5 2.5 0.15 ug/L n-Propyibenzene < 1.0 1.0 0.094 ugrL 0-Xylene <1.0 1.0 O.t9 ilg/L p-Isopropyltoluene <2-5 2.5 0.14 ugrt. sec-Butylbenzens <1-0 t.0 0.1t u~.. Styrene < 1.0 1.0 0.21 ugrk. tart-Butyibenzene < 1.0 1.0 0.091 uq/L Tetrachlorcethene < 1.0 1.0 0.26 ug1L Tetrahydrofuran <20 20 0.75 ug1L Toluene < 1.0 1,0 0.10 u9rL trans-l,2-D1chEoroethene < 1.0 1.0 0.056 ug/L trans-l,3-D1chEorapropene < 1.0 1.0 0.14 uglL Trlchioroethene < 1.0 1.0 0.18 ug/L Trichloronuoromethane < 1.0 t.0 0.29 uglL Vinyl chloride < 1.D 1.0 0.21 uglL Surrogate:4-BrornoRuorobenzene 50.4 ug/L 50.0 101 80-121 Surrogate: Dibromofluaromethane 52.9 ug4. 50.0 106 79.9-f21 Surrogate; 7oluened8 50.8 ug2 50.0 102 80-f 20 LCS (B1G2013•BS1} - -....__ Prepared ~ Analyzed: 07/20/11 1,1,2,2-TetrachEOroethane 49.6 1.0 0.16 ugrL 50.0 99.3 80-121 1,1-Dicttloroethane 51.0 1.0 0.15 uglL 50.0 102 80-125 1,1-Dichbrcethene 40.4 1.0 0.24 ug1L 50.0 80.8 80-125 1,3,5-Trimettrylbenzene 48.1 1.0 0.11 ugA. 50.0 96.2 75.4.125 1,4-Dichlorobenzene 48.9 7.0 0.081 ugtl. 50.0 97,9 75-125 2•Chloroioluene 47.2 1.0 0.081 ugQ. 50.0 94.4 75.4-125 Legend Technical Services, Inc. The results in this report apply fo the samples analyzed in accordance wffh the chain of custody document. Thfs analytical repor(must be reproduced in its entirety. Page 70 of 14 Technical Services, Inc- wevw,t+3gend-graup,com 88 Empire Drive St Paul, MN 55103 Tel: 551-642-1150 Fax: 551-642-1239 Liesch Associates, inc. Projecf: Eik RNer Dump 1340015th Avenue North, Suite A Project Number: [none] Work Order #: 1103157 Plymouth, MN 55441 Project Manager; Mr. Tom Johnson Daie Reported: 07/28/i1 VOC 8Z60B -Quality Contro[ Legend Technical Services, Inc. Spike Source %REC %RPD Analyte Result RL MDL Units Leve} Result °t°REC Limits %RPD Limit Nates Batch B1G2013 • EPA 5030 Water (Purge artd Trap) LCS (61G2013-BS1) Benzene 50.5 1.0 Bromoform 49.2 5.8 Chlorobenzene 51.3 1.0 Chloroform 49.2 1.0 Ethylbenzene 50.6 1.0 n-Butytbenzene 57.6 2.5 n-Propyibenzene 49.9 1.0 Toluene 52.1 1.0 Trichtoroethene 48.9 1.0 Vinyl chloride 50.4 1.0 Surrogate: 4-8romoAuorobenzene 53.0 Surrogate: DJbromorluoromethane 52.6 Surrogate: Toluene~l8 51.7 Prepared Z£ Analyzed: 07/20/11 0.077 ugJL 50.0 101 60-120 0.28 ug/L 50.0 98.5 80-120 0.20 ug2 50.0 103 80-120 0.15 ug4. 50.0 98.3 80-123 0.28 ugrL 50.0 701 80-120 0.15 ug1L 50.0 115 75-125 0.094 uglL 50.0 99.8 75.8.125 0.70 ug1L 50.0 104 80-120 0.18 ug2 50.0 97.8 80-120 0.21 uglL 50.0 i01 75-730 ug2 50.0 i06 80-121 ug2 50.0 105 79.9-121 ugiL 50.0 103 80-120 Matrix Spike (61G2093-MS1) Source: 1103187-01 Prepared & Analyzed:l)7/20/11 1,1,2,2-Tetrachloroethane 51.8 1.0 D.16 ug1L 50.0 <1.0 104 76.8.125 1,1-D1chloroethane 50.9 1.0 0.75 ug/L 50.0 <1.0 tD2 80-125 1,1-Dichloroethene 40.6 1.0 0.24 ugJL 50.0 <7.0 81.3 88-125 1,3,5-Trimethylbenzene 50.7 1.0 O.i1 ug1L 50.0 <1.0 101 75.125 1,4-Dichlorobenzene 50.4 1.0 0.081 ug/L 50.0 <1,0 107 75-125 2•Chlorotoluene 48.9 1.0 0.081 uglL 50.0 <1.0 97.8 75-125 Benzene 51.i 1-0 0.071 ug/L 50.0 <1.D 102 8D-120 Bromoform 51.0 5.0 0.26 ugQ. 50.0 <S.D 182 80-120 Chlorobenzene 53.0 1.0 0.20 uglL 50.0 <1.0 106 8D•120 Chloroform 57.1 1.0 0.15 uglt. 50.0 7.88 98.4 79.8-125 Ethylbenzene 52.9 1.0 0.28 ug/L 50.0 <1.0 188 80.120 n-Butylbenzena 60.2 2.5 0.15 ug/L 50.0 <2.5 120 75-130 n-Propylbenzene 5t.8 1.0 0,094 ug4. 50.0 <i,0 104 75-125 Toluene 53.5 1.0 0.10 ugti 50.0 <1.0 107 80-120 Trichlaroe€hene 50.1 1.0 0.18 ugrL 50.0 <1.0 98.6 80-120 Vinyl choride 48.4 1.0 0.21 uglL 50.0 <1.0 96.8 75-130 Surrogafe:4-8romofluorobenzene 54.0 ug2 50-0 708 80-12f Surrogate: Bibromofluoromelhane 52.4 ug2 50.0 705 79.9-121 Surrogate: Tofuene48 51.5 ug2 50.0 103 80-i20 Matrix Spike Dup (61G2013•MSD7) Source: 1903187.01 Prepared & Analyzed: 07/20/11 1,7,2,2-TeVachtoroethane 51.7 1.0 0,16 ugH. 50.0 <1.0 103 78.8-125 0.222 20 1,1-Dichloroethane 53.5 1.0 0.75 uglL 50.0 <7.0 107 80-125 4.91 20 1,1•Dichloroethene 44.7 1.0 0.24 uglL 50.0 <7.0 89.3 80-125 9.45 20 1,3,5-Tdmethy{trenzena 50.3 1.0 0.11 uglL 50.0 <1.0 107 75.125 0.950 20 Legend Technical Services, Inc. The results in this report apply to the samples analyzed fn accordance with the cbaln of custody document. Thfs analytical repon must be reproduced in its entirety Page 11 of 14 Technical Services, Inc. www.tegend-group.com 88 Empire Drive St Paul, MN 55103 Tel: 651-642-1150 Fax: 651-642-1239 Liesch Associates, Inc. Project: Elk River Dump 1340015th Avenue North, Suite A Projecl Number: [none} Work Order #: 1103157 Plymouth, MN 55441 Project Manager. Mr. Tom Johnson Date Reported: 07!28!11 VOC 828©B -Quality Control Legend Technical Services, Inc. Spike Source °!°REC %RPD ~nalyte Result RL MDL units Levef Result %REC Limits %RPD Limit Notes Batch B1G2013 • EPA 5030 Water {Purge and Trap) Matrix Spike Dup (81G2013-MSDi} Source: 1103187.01 Prepared & Analyzed: 07/20/11 1,4•Dlchloro6enzene 49.9 1.0 0.081 ug1L 50.0 <1.0 99.7 75-125 1.03 20 2-Chlorotoluene 48.2 1.0 0.081 ug1L 50.0 <1.0 96.3 75-125 1.52 20 Benzene 51.8 1.0 0.071 ug/l. 50.0 <1.0 104 BO.120 1.37 20 Bromotorm 49.4 5.0 0.26 ugrL 50.0 <5.0 98.7 80.120 3,14 20 Chlorobenzene 51.8 1.0 0.20 ugrL 50.0 <1.0 103 80-120 2.74 20 Chloroform 58.2 1.4 0.15 uglL 50.0 7.88 101 79.8.125 1.91 20 Ethylbenzene 50.4 1.0 0,28 ug/L 50.0 <1,0 101 80-120 d.82 20 n•Bulyibenzene 80.8 2.5 0.15 uglL 50.0 <2,5 122 75-130 0.893 20 n•Propyibenzene 51.7 1.0 0.094 ug/L 50.0 <i.0 103 75-125 0.0352 20 Toluene 53.fi 1.0 D.1D uglL 50.0 ci.0 107 80-120 0.135 20 Trichlorcethene 49.8 1.0 0.18 ugrt. 50.0 <1,0 98.1 SO-120 4.492 20 Vinyl chloride 49.0 1.0 0.21 uglL 50.0 <1.0 97.8 75-134 1.15 20 Surrogate:4-13romofluorobenzene 52.8 ugrL 50.0 108 80.121 Surrogate: Dibromofluoromelhane 51.8 ug/L 50.0 f03 79.9-12f Surrogate: Touene-d8 52.0 ugiL 50.0 704 80.120 Legend Technical Services, Inc. The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analyfica! report must be reproduced in its entirety. Page 12 of 14 Technical Services, inc. www.lsgertd-group.con~ 88 Empire Drive St Paul, MN 55103 Tel: fi5i-642-1150 Fax. 651-642-1239 Liesch Associates, tnc. Project: Elk River Dump 13400 15th Avenue North, Suite A Project Number: [none] Work Order #: i 103157 Plymouth, MN 55441 Project Manager: Mr. Tom Johnson Dale Reported: 07/28/i 1 Notes and Qefinltions < Less than value listed dry Sampfa results reported on a dry weight basis NA Not applicable. The %RPD is not calculated from values less than the reporting limit. MDL Method Detection Limit Rt Reporting Limit RPD Relative Percent Difference LCS Laboratory Control Spike =Blank Spike (BS) ~ Laboratory Fortified Blank (LF8) MS Matrix Spike =Laboratory Fortified Matrix (LFM) Legend Technical Services, fnc. The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in ifs entirety. Page 13 of i4 Technical Services, Inc. www.legend-group.com 88 Empire Drive St Paut, MN 55103 Tel: 651-642-1150 Fax; 651-642-1233 Legend Technics! Servtces, Inc. The results in this report apply tp fhe samples analyzed in accordance with the chain of custody document. This analyflcal report must !ta reproduced in ifs enfirefy. Page 14 of 1d ~~ ~ 4 3 3 ,S N Wm; +...+ 1i ~.` "~ 1 V! .~` A ~n ~~ ~ v; a t~ ~ ~, #~~zI ui ~r~i~raa~~ i~ ~~ ZI~Z [I~Z OtCI G~~Z ~[~~} L{l(}Z 9I~~J X ~{~~~ ~t C+. f . .~ C ~~~~.. ?~ ~~ Cl c, 4J .~ itinn 1 llll ~ ~ ' ~~©C. sii tS ~ . t-. ~' . ~ v „~ ~. C a ,~ ~'~~ C L66 i ~` 9661 0 >, v ~6f t f' 66 £6G t Z6C~I 1661 ', 0(6I 6~6I ~... l ~~61 c