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3.11. SR 07-16-2007 REQUEST FOR ACTION ouncil ion Meeting Date July 16, 2007 Item Number 3.11. Prepared by Rebecca Haug, Environmental Administrator Reviewed by Lori Tohnson, City Administrator Reviewed by Item Description Continuation of Annual Monitoring of Former Elk River City Dump Action Requested Staff recommends the following: 1. Annual monitoring continues until future plans for the site are known or no Volatile Organic Compounds (VOC's) are detected. 2. Results of the private well testing continue to be sent to the individual residences. Backlround/Discussion Liesch Associates, Inc. completed the yearly groundwater sampling on June 7, 2007. Samples were taken at monitoring wells MW -2, and MW -3 within the dump, and the Vandenberg and Hipsag residential wells located west and southeast of the dump. 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 and no VOCs were detected at MW-3. 1,1,2,2-tetrachloroethylene (pC E) was identified at 1.0 parts per billion (Ppb) in MW-2. The PCE level detected in MW-2 is consistent with historic low PCE concentrations · No VOCs were detected at the Vandenberg and Hipsag residential wells. · VOC concentrations at the monitoring well locations continue to be stable. · The concentrations are below current Minnesota Department of Health (MD H) Health Risk Limits (HRLs) for drinking water. Financial Impact Annual cost of monitoring is $500.00, which is paid for out of the Landfill Abatement fund. Attachments -June 2007 Groundwater Monitoring Results for the Old City Dump; Tom C. Johnson, Leisch Assoc., Inc., dated July 3, 2007 I Action Motion by _ Second by _ Vote s: \Council\Rebecca \Former City Dump 07 16 07.doc I Follow Up S:\Council\Rebecca\Former City Dump 0716 07.doc '. t. - - --- - LIE1CH ~ HYDROGEOLOGISTS . ENGINEERS . ENVIRONMENTAL SCIENTISTS JUL 0 5 Z007 July 3, 2007 Ms. Rebecca Haug City of Elk River Environmental Division 13065 Orono Parkway Elk River, MN 55330 RE: June 2007 Groundwater Monitoring Results Old City Dump, Elk River, Minnesota Dear Rebecca: Enclosed please find the 2007 annual water quality data for the Old Elk River Dump site located southeast of the City of Elk River (Figure 1). The groundwater sampling was completed on June 7, 2007 by Liesch Associates, Inc. (Liesch). Sample locations included monitoring wells MW-2 and MW-3 near the former City dump site (Figure 2). 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 the well was located. Over ten-years of water quality monitoring at this upgradient well location evidenced no detections ofVOC's so the well was not replaced. Laboratory results of the June 2007 sampling event (Table 1) indicates a low level VOC detection of 1,1,2,2-Tetrachloroethylene (PCE) in MW-2 at a level of 1.0 parts per billion (Ppb). No VOCs were detected in MW-3. The PCE level detected in MW-2 during this recent sampling event is consistent with historic low PCE concentrations. No VOC's were detected in the Vandenberg and Hipsag residential wells. Water level data indicates that the water table at the site remains consistant with water levels recorded over that last 7 years (attached Chart 1). Groundwater flow direction could not be calculated as a minimum of three monitoring points are needed for this determination and MW-l was sealed. Historic groundwater flow direction for the site has been southwesterly in direction towards the Mississippi River. Presumably this was not changed. The VOC concentrations at the monitoring well locations (MW-2 and MW-3) have been relatively stable over the last few monitoring events. As indicated above, PCE in MW -2 was the only VOC detected in this year's sampling event. PCB concentrations are below current Minnesota Department of Health (MDH) Health Risk Limits (HRLs) for drinking water. LIESCH ASSOCIATES, INC. . 13400 15TH AVENUE NORTH . MINNEAPOLIS, MN 55441 . 763/489-3100 . FAX: 763/489-3101 ., '-' o "0 g. E c o .~ '-' of: .s '0; c.. E ::0 "0 .. Q) .~ ,.\<i ~ :; ~ ~ ;>- c .9 :'i \ ~'f' t", I L C,S;' '~>i~' 'tu J~li~~:~=1;~'*:n(~l ~ " i' ,k u.; ~ ",,::'" y , ."- 'L~i ~~':=~~ ~~,! c ~ C Jt>' : ' ~~l~:" r ~~ . 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",::::n8 ~Nc.S ...... == OJ >< ..... 0 =:~~(I) "'O~ :~ ;....; "CJ Ul e N ~ ~ ~ '0 2 '1:i ~ .5 ::t ~ '" t<:l J:l '-' "'0 '_~ 1::: C.:l ",'~] (I) ~t<:lt<:l"'O::::~=:tl ..c:: Q.. ~ .5 ~.- 0 ~ .::: .5 t<:l t; ~ ] ..9 ~~cneOJIJI.,", ::t "3 .~ ~ "0 Ea ~ ::t e(l)~7~'7~ 2 _ ~ jg ~ 2 ~ II ::t<:E-1JJZa:l..<:i=t:l:: ...: (I) :E ci:i ~ E- O Z""';NM..,f"';I.Cir-.:cx5 '-' o "0 ..t >=' .... Q) ;>- ] a; ~ :.g> la .s ;j 88 Empire Drive 8t Paul, MN 55103 Tel: 651-642-1150 Fax: 651-642-1239 June 22, 2007 Mr. Tom Johnson Liesch Associates, Inc. 13400 15th Avenue North, Suite A Plymouth, MN 55441 Work Order Number: 0702739 RE: Former Elk River Dump Enclosed are the results of analyses for samples received by the laboratory on 06/08/07. 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 #027-123-295 Prepared by, LEGEND TECHNICAL SERVICES, INC j~a-L ~~ Terri Olson Client Manager II tolson@legend-group.com Shanna Miller Report Reviewer smiller@legend-group.com 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. 88 Empire Drive St Paul, MN 55103 Tel: 651-642-1150 Fax: 651-642-1239 Liesch Associates, Inc. 13400 15th Avenue North, Suite A Plymouth MN, 55441 Project: Former Elk River Dump Project Number: 79019.00 Project Manager: Mr. Tom Johnson Date Reported: June 22, 2007 Analyte VOC GCMS 82608 Legend Technical Services, Inc. RL MDL Units Dilution Batch Prepared Analyzed Method Notes Result MW-2 (0702739-01) Groundwater Received:06/08/07 11 :30 Sampled:06/07/07 11 :00 1,1,1,2- Tetrachloroethane <1.0 1.0 0.18 ug/L B7F1313 06/13/07 06/13/07 EPA 8260B 1 , 1 .1- Trichloroethane <1.2 1.2 0.37 ug/L 1.1.2,2- Tetrachloroethane <1.0 1.0 0.20 ug/L 1.1,2- Trichloroethane <1.0 1,0 0.31 ug/L 1.1,2- Trichlorotrifluoroethane <1.0 1.0 0.29 ug/L 1.1-Dichloroethane <1,0 1.0 0.11 ug/L 1,1-Dichloroethene <1,0 1.0 0.20 ug/L 1.1-Dichloropropene <1.0 1.0 0.18 ug/L 1,2,3- Trichlorobenzene <5.0 5.0 0.70 ug/L 1.2,3-Trichloropropane <2,5 2.5 0.47 ug/L 1,2.4- Trichlorobenzene <5.0 5.0 0,55 ug/L 1,2,4-Trimethylbenzene <1.0 1.0 0.21 ug/L 1,2-Dibromo-3-chloropropane <5.0 5,0 1.1 ug/L 1 ,2-Dibromoethane (EDB) <2.5 2.5 0.32 ug/L 1.2-Dichlorobenzene <1,0 1.0 0.25 ug/L 1,2-Dichloroethane <1.0 1,0 0,11 ug/L 1.2-Dichloropropane <1,0 1.0 0,30 ug/L 1.3,5- Trimethylbenzene <1.0 1.0 0.19 ug/L 1,3-Dichlorobenzene <1.0 1.0 0.26 ug/L 1,3-Dichloropropane <1.0 1,0 0.26 ug/L 1.4-Dichlorobenzene <1.0 1.0 .0.20 ug/L 2.2-Dichloropropane <5.0 5.0 0.31 ug/L 2-Butanone <20 20 1.1 ug/L 2-Chlorotoluene <1.0 1.0 0.16 ug/L 4-Chlorotoluene <1.0 1.0 0.11 ug/L Acetone <20 20 2.3 ug/L Allyl chloride <20 20 0.36 ug/L Benzene <1.0 1.0 0.039 ug/L Bromobenzene <1.0 1.0 0.30 ug/L Bromochloromethane <1.0 1.0 0.28 ug/L Bromodichloromethane <1,0 1.0 0.25 ug/L Bromoform <5.0 5.0 0.68 ug/L Bromomethane <5.2 5.2 1.6 ug/L Carbon tetrachloride <1,1 1.1 0.34 ug/L 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. Page 3 of 15 88 Empire Drive St Paul, MN 55103 Tel: 651-642-1150 Fax: 651-642-1239 Liesch Associates, Inc. 13400 15th Avenue North, Suite A Plymouth MN, 55441 Project: Former Elk River Dump Project Number: 79019.00 Project Manager: Mr. Tom Johnson Date Reported: June 22, 2007 Analyle VOC GCMS 82608 Legend Technical Services, Inc. RL MDL Units Dilution Batch Prepared Analyzed Method Notes Result MW-2 (0702739-01) Groundwater Received:06/08/0711:30 Sampled:06/07/0711:00 Surrogate: Dibromofluoromethane 108 100 80-121 % B7F1313 06113/07 06113/07 EPA 8260B Surrogate: Toluene-d8 80-120 % MW-3(0702739-02) Groundwater Received:06/08/07 11 :30 Sampled:06/07/07 11 :30 1.1.1,2- Tetrachloroethane <1,0 1.0 0.18 ug/L B7F1313 06/13/07 06/13/07 EPA 8260B 1 ,1 ,i-Trichloroethane <1.2 1.2 0,37 ug/L 1,1.2,2- Tetrachloroethane <1.0 1.0 0.20 ug/L 1,1.2- Trichloroethane <1.0 1.0 0.31 ug/L 1,1.2- Trichlorotrifluoroethane <1.0 1.0 0.29 ug/L 1.1-Dichloroethane <1,0 1.0 0.11 ug/L 1,1-Dichloroethene <1.0 1.0 0.20 ug/L 1.1-Dichloropropene <1.0 1.0 0.18 ug/L 1,2,3- Trichlorobenzene <5.0 5.0 0.70 ug/L 1.2,3- Trichloropropane <2.5 2.5 0.47 ug/L 1,2,4-Trichlorobenzene <5,0 5.0 0.55 ug/L 1,2,4- Trimethylbenzene <1,0 1.0 0.21 ug/L 1,2-Dibromo-3-chloropropane <5.0 5.0 1.1 ug/L 1 ,2-Dibromoethane (EDB) <2.5 2.5 0,32 ug/L 1.2-Dichlorobenzene <1.0 1.0 0.25 ug/L 1,2-Dichloroethane <1.0 1.0 0,11 ug/L 1.2-Dichloropropane <1.0 1.0 0.30 ug/L 1,3,5- Trimethylbenzene <1.0 1.0 .0.19 ug/L 1.3-Dichlorobenzene <1.0 1.0 0.26 ug/L 1.3-Dichloropropane <1.0 1.0 0.26 ug/L 1.4-Dichlorobenzene <1,0 1.0 0.20 ug/L 2,2-Dichloropropane <5.0 5.0 0.31 ug/L 2-Butanone <20 20 1,1 ug/L 2-Chlorotoluene <1.0 1.0 0.16 ug/L 4-Chlorotoluene <1.0 1.0 0.11 ug/L Acetone <20 20 2.3 ug/L Allyl chloride <20 20 0.36 ug/L Benzene <1.0 1.0 0.039 ug/L Bromobenzene <1.0 1.0 0,30 ug/L Bromochloromethane <1.0 1.0 0.28 ug/L Bromodichloromethane <1.0 1,0 0.25 ug/L 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. Page 5 of 15 88 Empire Drive St Paul, MN 55103 Tel: 651-642-1150 Fax: 651-642-1239 Liesch Associates, Inc. 13400 15th Avenue North, Suite A Plymouth MN, 55441 Project: Former Elk River Dump Project Number: 79019.00 Project Manager: Mr. Tom Johnson Date Reported: June 22, 2007 Analyte VOC GCMS 82608 Legend Technical Services, Inc. RL MDL Units Dilution Batch Prepared Analyzed Method Notes Result MW-3 (0702739-02) Groundwater Received:06/08/07 11 :30 Sampled:06/07/07 11 :30 Trichloroethene <1.0 1.0 0.28 ug/L B7F1313 06/13/07 06/13/07 EPA 8260B Trichlorofluoromethane <1.0 1.0 0.12 ug/L Vinyl chloride <1.0 1.0 0.31 ug/L Surrogate: 4-Bromofluorobenzene 99.0 80-125 % Surrogate: Dibromofluoromethane 105 80-121 % Surrogate: To/uene-d8 101 80-120 % Trip Blank (0702739-03) Water Received:06/08/07 11 :30 Sampled:05/31/07 00:00 1.1.1,2- Tetrachloroethane <1,0 1.0 0.18 ug/L B7F1313 06/13/07 06/13/07 EPA 8260B 1,1,1-Trichloroethane <1.2 1.2 0.37 ug/L 1,1,2.2- Tetrachloroethane <1.0 1.0 0.20 ug/L 1.1.2-Trichloroethane <1.0 1.0 0.31 ug/L 1,1,2- Trichlorotrifiuoroethane <1.0 1.0 0.29 ug/L 1,1-Dichloroethane <1.0 1.0 0.11 ug/L 1.1-Dichloroethene <1.0 1.0 0.20 ug/L 1,1-Dichloropropene <1.0 1.0 0.18 ug/L 1,2,3-Trichlorobenzene <5,0 5.0 0.70 ug/L 1,2,3- Trichloropropane <2.5 2:5 0.47 ug/L 1.2.4- Trichlorobenzene <5.0 5.0 0.55 ug/L 1,2,4- Trimethylbenzene <1.0 1.0 0.21 ug/L 1,2-Dibromo-3-chloropropane <5.0 5.0 1.1 ug/L 1 ,2-Dibromoethane (EDB) <2.5 2.5 '0.32 ug/L 1.2-Dichlorobenzene <1.0 1.0 0.25 ug/L 1,2-Dichloroethane <1.0 1.0 0.11 ug/L 1.2-Dichloropropane <1,0 1,0 0,30 ug/L 1,3,5- Trimethylbenzene <1.0 1.0 0.19 ug/L 1,3-Dichlorobenzene <1.0 1.0 0.26 ug/L 1.3-Dichloropropane <1.0 1.0 0.26 ug/L 1 ,4-Dichlorobenzene <1.0 1.0 0.20 ug/L 2,2-Dichloropropane <5.0 5,0 0.31 ug/L 2-Butanone <20 20 1.1 ug/L 2-Chlorotoluene <1.0 1.0 0.16 ug/L 4-Chlorotoluene <1.0 1.0 0.11 ug/L Acetone <20 20 2,3 ug/L Allyl chloride <20 20 0.36 ug/L 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. Page 7 of 15 88 Empire Drive St Paul, MN 55103 Tel: 651-642-1150 Fax: 651-642-1239 Liesch Associates, Inc. 13400 15th Avenue North. Suite A Plymouth MN, 55441 Project: Former Elk River Dump Project Number: 79019.00 Project Manager: Mr. Tom Johnson Date Reported: June 22. 2007 Analyte VOC GCMS 82608 Legend Technical Services, Inc. RL MDL Units Dilution Batch Prepared Analyzed Method Notes Result Trip Blank (0702739-03) Water Received:06/08/07 11 :30 Sampled:05/31107 00:00 T etrahydrofuran <20 20 1.1 uglL B7F1313 06113107 06113107 EPA 8260B Toluene <1.0 1.0 0.23 uglL trans-1,2-Dichloroethene <1.0 1.0 0.17 uglL trans-1.3-Dichloropropene <1.0 1.0 0.26 uglL Trichloroethene <1,0 1,0 0.28 uglL Trichlorofluoromethane <1,0 1.0 0.12 uglL Vinyl chloride <1,0 1.0 0.31 uglL Surrogate: 4-Bromofluorobenzene 99.3 80-125 % Surrogate: Dibromofluoromethane 108 80-121 % Surrogate: ToJuene-d8 101 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 analytical report must be reproduced in its entirety. Page 9 of 15 88 Empire Drive St Paul, MN 55103 Tel: 651-642-1150 Fax: 651-642-1239 Liesch Associates, Inc. 13400 15th Avenue North, Suite A Plymouth MN, 55441 Project: Former Elk River Dump Project Number: 79019.00 Project Manager: Mr. Tom Johnson Date Reported: June 22, 2007 VOC GCMS 82608 - Quality Control Legend Technical Services, Inc. Result RL MDL Units Spike Level Source Result %REC %REC Limits %RPD %RPD Limit Notes Batch B7F1313 . Volatiles Blank (B7F1313-BLK1) Prepared & Analyzed: 06/13/07 Chlorobenzene < 1.0 1.0 0.20 ug/L Chloroethane < 2.5 2.5 0.35 ug/L Chloroform < 1.0 1.0 0.15 ug/L Chloromethane < 2.5 2.5 0.16 ug/L cis-1,2-Dichloroethene < 1.0 1.0 0.29 ug/L cis-1,3-Dichloropropene < 1.0 1,0 0.17 ug/L Dibromochloromethane < 2.5 2.5 0.13 ug/L Dibromomethane <2.5 2.5 0.43 ug/L Dichlorodifiuoromethane < 5.0 5.0 0.20 ug/L Dichlorofluoromethane < 1.0 1.0 0,18 ug/L Ethyl ether < 5.0 5.0 0.34 ug/L Ethylbenzene < 1,0 1.0 0.062 ug/L Hexachiorobutadiene < 10 10 0.87 ug/L isopropyl benzene < 1.0 1.0 0,12 ug/L m,p-Xylene < 2.0 2.0 0.37 ug/L Methyl isobutyl ketone < 5.0 5.0 1.4 ug/L Methyl tert-butyl ether < 1.0 1,0 0,12 ug/L Methylene chloride < 10 10 0.16 ug/L Naphthalene < 5.0 5.0 0.37 ug/L n-Butylbenzene < 2.5 2.5 0.21 ug/L n-Propylbenzene < 1.0 1.0 0.12 ug/L o-Xylene < 1.0 1.0 0.25 ug/L p-Isopropyltoluene < 2.5 2,5 0.15 ug/L see-Butyl benzene < 1.0 1.0 0,16 ug/L Styrene < 1.0 1.0 0.18 ug/L tert-Butylbenzene < 1.0 1.0 0.16 ug/L T etrachloroethene < 1.0 1.0 0,15 ug/L T etrahydrofuran <20 20 1.1 ug/L Toluene < 1.0 1.0 0.23 ug/L trans-1,2-Dichloroethene < 1,0 1.0 0.17 ug/L trans-1,3-Dichloropropene < 1.0 1.0 0.26 ug/L Trichloroethene < 1.0 1.0 0.28 ug/L Trichlorofluoromethane < 1.0 1.0 0,12 ug/L Vinyl chloride < 1.0 1.0 0.31 ug/L Surrogate: 4-Bromofluorobenzene 60,9 ug/L 61.0 99.8 80-125 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. Page 11 of 15 88 Empire Drive St Paul, MN 55103 Tel: 651-642-1150 Fax: 651-642-1239 Liesch Associates, Inc. Project: Former Elk River Dump 13400 15th Avenue North, Suite A Project Number: 79019.00 Date Reported: Plymouth MN, 55441 Project Manager: Mr. Tom Johnson June 22, 2007 VOC GCMS 82608 - Quality Control Legend Technical Services, Inc. Spike Source %REC %RPD Analyte Result RL MDL Units Level Result %REC Limits %RPD Limit Notes Batch B7F1313 - Volatiles Matrix Spike (B7F1313-MS1) Source: 0702739-02 Prepared & Analyzed: 06/13/07 n-B utyl benzene 49.2 2.5 0.21 ug/L 50.0 <2.5 98.4 75-125 n-Propylbenzene 46,0 1.0 0.12 ug/L 50.0 <1.0 92.0 80-120 Toluene 49.8 1.0 0,23 ug/L 50.0 <1.0 99,6 80-120 T richloroethene 51,1 1.0 0.28 ug/L 50.0 <1.0 100 75-125 Vi nyl chloride 51.6 1.0 0.31 ug/L 50.0 <1.0 103 75-125 Surrogate: 4-Bromofluorobenzene 64.0 ug/L 61.0 105 80-125 Surrogate: Dibromofluoromethane 63.7 ug/L 61.0 104 80-121 Surrogate: Toluene-d8 63.1 ug/L 61.0 103 80-120 Matrix Spike Dup (B7F1313-MSD1) Source: 0702739-02 Prepared & Analyzed: 06/13/07 1,1.2,2- Tetrachloroethane 46.7 1.0 0.20 ug/L 50.0 <1.0 93.4 80-123 0.640 20 1.1-Dichloroethane 49.5 1.0 0.11 ug/L 50.0 <1.0 99.0 80-120 0.202 20 1.1-Dichloroethene 50.2 1.0 0.20 ug/L 50.0 <1.0 100 80-120 2,36 20 1,3,5- Trimethylbenzene 46.4 1.0 0.19 ug/L 50.0 <1.0 92.8 80-120 0.858 20 1.4-Dichlorobenzene 45.3 1.0 0.20 ug/L 50.0 <1.0 90.6 75-125 0.879 20 2-Chlorotoluene 45.0 1.0 0.16 ug/L 50.0 <1.0 90.0 80-120 1,10 20 Benzene 48.8 1.0 0.039 ug/L 50.0 <1.0 97.6 75-125 0.816 20 Bromoform 49.2 5,0 0.68 ug/L 50.0 <5.0 98.4 80-125 6.30 20 Chlorobenzene 46.6 1.0 0.20 ug/L 50.0 <1.0 93.2 80-120 2.54 20 Chloroform 51.1 1.0 0.15 ug/L 50.0 <1.0 102 80-120 0.780 20 Ethylbenzene 48,6 1.0 0.062 ug/L 50.0 <1.0 97.2 80-120 0.412 20 n-Butylbenzene 49.1 2.5 0.21 ug/L 50.0 <2.5 98,2 75-125 0.203 20 n-Propylbenzene 45.8 1.0 0,12 ug/L 50.0 <1.0. 91.6 80-120 0.436 20 Toluene 49,7 1.0 0.23 ug/L 50.0 <1.0 99.4 80-120 0.201 20 Trichloroethene 50.0 1.0 0,28 ug/L 50.0 <1.0 98.1 75-125 2,18 20 Vinyl chloride 50.3 1.0 0,31 ug/L 50.0 <1.0 101 75-125 2.55 20 Surrogate: 4-Bromofluorobenzene 62.7 ug/L 61.0 103 80-125 Surrogate: Dibromofluoromethane 64.6 ug/L 61.0 106 80-121 Surrogate: Toluene-d8 63.2 ug/L 61.0 104 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 analytical report must be reproduced in its entirety. Page 13 of 15 0> ~ N ! "" "" x If u~ Z:::Q ~~a:: ~,.:.8 >~w a:: '.. a:: ~~~ .... a C) <"'~ QQi:::J zt-Q :;;:'tL ~.~ C) I-;:;;z QWa z:z:;;: W:::ii<..> 51=\ ..;.JC: uS '" ,. 't:: o eo: "a E w m --I '0 - .. 'CO .. ... E G I Jt ~ ~ ~ ~ C;) .. " I ~ 1 s il,,;j <!) E ~ ~ ~. .as r /' .- ;.: I z .~ <:5 Legend Technical Services, Inc. % ... ::::> Il: grClLIl:l com '792:'::'/\ _woo JO MllClWnN So> ~ ~. ,~ Nl jJ I ~ '" ...:t;; 15 ..2i.. ! 11 Ilfll a: a: a: ~ '" 0 ." ....... !i!! .""'.' Ii E i: ; ! .f' , " j ~ !! ~ ~,..,.. ( ,. >, ,~ r ...r :. ~. ,r "f' ., '" ,~ ~ "'" ~ ~_.P ;;/' - ." i :J f; ~ "" I u: ~ J - M k; . . '?"" 7'" :~ . '*' o "- - ~.. i.. !l l~;j 'r:; ! <;:'"' OJ -!" ... ~ ,," ....' *'; c: ~ " .J;,. '~ )~ ~ "'" o ~,g .......... r ~ \ ~.g ~~ '" ~} c: 88 Empire Drive SI Paul, MN 55103 Tel: 651-642-1150 Fax: 651-642-1239 ...... ~ ~ ~~ ~E - ~ (I) ,0 w~ a:8 ~it: UJQ lD'" ~~ ~;;; lD"" z~ 0' (I)~ 2:0 o. i=& i5~ z: 0'" (.).5 OS 51 ~! Il: ~ LI1 .~ it >", W M' Il: .1!. W8 ~. Wl';;: cC8 .. ~ i ill ~ ! 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. ,tH .J::-.- ~ ~~ -~ ...~ ~ li.~ ~ J~ ~12 l'- ~t--.. I....~ ~ 18 W o\S > );~ I~f' .;~ ~ # ~ ~. !, ~ ~ ~ ! .... at> I ...1... , -i !~ ~ .tj -,. ~ $! 1.1J Page 15 of 15