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5.9. SR 09-09-2002
City TO: FROM: DATE: SUBJECT: MEMORANDUM Mayor and City Council Rebecca Haug, Environmental Technician September 4, 2002 Old City Dump Item 5.9. Proposal - Mark Johnson, Leisch Associates, Inc. sent Stephen Rohlf the Groundwater Monitoring Results from the Old City Dump (located in Hillside Park south of CSAH 12) on July 16, 2002. Liesch Associates, Inc completed the groundwater sampling on June 17, 2002. Samples were taken at monitoring wells MW-1, 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. FINDINGS · There were only two VOC detections for this sampling event. 1,1,2,2- tetrachloroethylene was identified at 0.88 parts per billion (ppb) in MW-2 and 1,1,2-trichloroethylene (TCE) was identified at 2.4 ppb in MW-3. No VOCs were detected in MW-1, or the Vandenberg and Hipsag residential wells. · VOC concentrations at the monitoring well locations continue to decline. · The concentrations are below current Minnesota Department of Health (MDH) Health Risk Limits (HRLs) for drinking water. · MW-1 has a damaged outer-casting that should be repaired. A local well contractor has been contacted for repairs. RECOMMENDATION Staff recommends the following: 1. Annual monitoring continues until future plans for the site are known. 2. Results of the private well testing continue to be sent to the individual residence. JUL 17 20O2 LIE$ CH You Are Receiving a Transmittal From Liesch Associates, Inc. · 13400 15t" Avenue North · Minneapolis, MN 55441-4532 Phone: (763) 489-3100 · Toll Free: (800) 338-7914 · Fax: (763) 489-3101 To: Mr. Steve Rohlf City of Elk River Date: July 16, 2002 Re.' Draft Report - Elk River Dump Transmitted: As you requested: For your information: Other: Comments: Draft report for your rev/ew. Let me know if you have any questions or comments and I will f'malize and mail out. Thanks. Sincerely, LIESCH ASSOCIATES, INC. Mark Johnson July 16, 2002 Mr. Stephen Rohlf Building and Zoning Administration City of Elk River 13065 Orono Parkway Elk River, MN 55330 RE: July 2002 Groundwater Monitoring Resu Old City Dump, Elk River, Minnesota Dear Mr. Rohlf: Enclosed please find the 2002 annual water southeast of the City of Elk River 17, 2002 by Liesch Associates, Inc. Sample MW-2 and MW-3 within the dump the west and southeast of the dump respectivel site located completed on June monitoring wells MW- 1, residential wells located Please recall that the Kirkei exist. These two wells were se and sewer formerly located south of the dump, no longer the area was re-developed and municipal water A in MW-l, or the flow direction was re 2). Water level Chart 1. 1) were only two VOC detections for this identified at 0.88 parts per billion (ppb) in was ir fled at 2.4 ppb in MW~3. No VOC's were and Hipsag residential wells. Consistent with past data, to be southwesterly in direction towards the Mississippi that the water table at the site rose slightly in 2002 as The remain at above, 1,1,2,1 VOC's detected are below current at ring well locations continue to decline. The concentrations ,~d at the site since sampling initiated in 1989. As indicated MW-2 and 1,1,2-trichloroethylene in MW-3 were the only two event. This data is similar to 2001 data. The concentrations ~partment of Health (MDH) Health Risk Limits (HRLs) for drinking water, and continue to intermittently detected across the site at low levels. No VOC's have been detected in the Vandenberg and Hipsag wells to date. Page 2 July 16, 2002 The City should be aware that earlier this year the MDH lowered the HRL for 1,1,2- Trichloroethylene (TCE) from 30 ppb to 5 ppb. Although VOC levels are below this standard at present, historically TCE has been detected in monitoring wells and the Kirkeide well (now abandoned) at levels up to 21 ppb. If concentrations exceed HRL should be notified of the findings. Currently, VOC concentrations do not exc~ Also, it appears that monitoring well MW~I has a damag be repaired. We will contact a local well contractor and forward a co~, As in the past, we will provide the results of the upon your review of the data. It is recommended annu the site are known. Please feel free to contact John Lichter or myself should Sincerely, LIESCH ASSOCIATES, INC. '- Mark Johnson Attachments: Figure 1 }ort -- s Map Data 1502.doc L~~ LINCH Hydrogeologists · S~urce: USGS Via Terraserver (aerial, 1994) 6000 Gisholt Dr. Suite 203 13400 15a Avenue N 4300 N Miller Rd, Sui~ 211 Madison, WI 53713 Minneapolis, MN 55441 Seottsdale, AZ 85251 (60g) 223-1532 (763) 559-1423 (480) 421-0853 Elk River City Dump Monitoring and Residential Well Location Map July '02 Figure #2 75 Well Hydrographs - Old Elk River Dump (July 2002) 70 65 60 55 [~MW-11 --~--- MW-2~ MW-3 ~ 50 45 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 Date of Measurement 2000 2001 2002 Parameter Detected/ Sample Date: 1/89 8/89 5/90 5/92 6/92 7/92 6/93 6/94 8/95 8/97 7/98 8/98 5/01 6/02 5/92 7/92 6/94 '8/95 8/97 7/98 8/98 MW-1 (dump) TA~,~ 1 COMPREHENSIVE WATER QUALITY DETECTION SUMMARY ELK RIVER DUMP SITE JULY 2002 (ALL RESULTS IN PPB) MW-2 (dump) 1.4 MW-3 (dump) Vandenberg Brown (10815 Hipsag (17665 Kirkeide Kirkeide (10811 181st 175thAvenue) Polk Street) Kitchen, Avenue) Sillcock, filtered (10873 unfiltered 175thAvenue) (10873 175th Avenue) 19.3 15.6 16.2 14.0 5.9 5.4 3.8 3.3 2.5 1.7 2.4 Health Risk Limits (HRLs) 0.6 1.8 7.1 16.0 17.0 18.0 21.0 2.8 5.8 7.3 14.0 16.0 13.0 17.0 8/89 5/90 5/92 9/00 5/01 6/02 0.8 1.2 1.1 1.6 1.1 0.88 6/92 8/89 6/92 8/89 7/98 1/89 7/98 7/98 78.4 0.3 1.8 22.2 2.6 3.3 1.4 3.4 7/98 NOTES: 2. 3. 4. 5. 6. 7. HRL - Health Risk Limit set by Minnesota Department of Health. All results in parts per billion (ppb), equivalent to micrograms per liter. Table is summary of detections only. Shaded area indicates exceedance in HRL. NE - not established. Brown and Kirkeide residence's abandoned in 1999 when area re-developed. # = MDH lowered HRL for TCE in 2002 from 30 ppb to 5 ppb. 1.3 U:\markj\tblelkriver '02.doc Page 1 of 8 L E G E N D Technical Services, Inc. 06/25~02 Mr. Mark Johnson Liesch Associates, Inc. 13400 15th Ave N Plymouth MN 55441 Subject: Legend No: 790919.00 20O2O6O284 Elk River Dump LEGEND TECHNICAL SERVICES, INC. (LEGEND) received the following sample(s). ~ples Date Sampled Date Received ,-,-'--- ~ ,~rounawater 5 ,-,umments 06/17/02 06/17/02 Received on ice * The associated batch quality assurance / quality control criteria were met with satisfaction. * All samples will be retained by LEGEND for 30 days from the date of this report and then discarded unless other instructions are received from the client. * Minnesota Laboratory Certification # 027-123-295. Prepared by, LEGEND TECHNICAL SERVICES, INC Laboratory Director Roberta Provost Chemist This report shall not be reproduced, except in full, without the written authorization of LEGEND INDOOR ENVIRONMENTAL QUALITY AND LABORATORY SERVICES 775 I/andaE; Str¢¢! ~ Paul MN 55114 Equal Opportunity En~oloyer" www. legen d-group, corn tel 651. 642.1150fax 651. 642.1239 VOC GC MDH 465F Extraction Date: __ Client ID: Analysis Method: MNDH 465F MW-1 Analysis Date: 06124/02 Sample Sample Compound Results Units RL MDL Compound Results Units RL MDL 1,1,1,2-Tetrachloroethane <0.50 pg/L 0.50 0.27 Dibromomethane <0.50 pg/L 0.50 0.37 1,1,1-Trichloroethane <0.50 pg/L 0.50 0.19 Dichlorodifluoromethane <2.0 pg/L 2.0 0.14 1,1,2,2-Tetrachloroethane <0.50 pg/L 0.50 0.21 Dichlorofluoromethane <5.0 pg/L 5.0 5.0 1,1,2-Trichloroethane <0.50 pg/L 0.50 0.18 Ethyl benzene <0.50 pg/L 0.50 0.16 1,1-Dichloroethane <0.50 pg/L 0.50 0.26 Ethyl ether <5.0 pg/L 5.0 5.0 1,1-Dichloroethene <0.50 pg/L 0.50 0.10 Hexachlorobutadiene <0.50 pg/L 0.50 0.14 1,1-Dichloropropene <0.50 pg/L 0.50 0.14 Isopropyl benzene <0.50 pg/L 0.50 0.22 1,2,3-Trichlorobenzene <0.50 pg/L 0.50 0.1; Methyl ethyl ketone <5.0 pg/L 5.0 5.0 1,2,3-Trichloropropane <0.50 pg/L 0.50 0.20 Methyl isobutyl ketone <5.0 pg/L 5.0 5.0 1,2,4-Trichlorobenzene <0.50 pg/L 0.50 0.12 Methyl-ted-butyl ether <1.0 pg/L 1.0 1.0 1,2,4-Trimethyl benzene <0.50 pg/L 0.50 0.26 Methylene chloride <5.0 pg/L 5.0 0.45 1,2-Dibromo-3-chloropropane <0.80 pg/L 0.80 0.060 n-Butyl benzene <0.50 pg/L 0.50 0.38 1,2-Dibromoethane <0.50 pg/L 0.50 0.37 n-Propyl benzene <0.50 pg/L 0.50 0.16 1,2-Dichlorobenzene <0.50 pg/L 0.50 0.12 Naphthalene <0.50 pg/L 0.50 0.18 1,2-Dichloroethane <0.50 pg/L 0.50 0.27 o-Xylene <0.50 pg/L 0.50 0.35 1,2-Dichloropropane <0.50 pg/L 0.50 0.15 P,m-Xylene <1.0 pg/L 1.0 0.31 1,3,5-Trimethyl benzene <0.80 pg/L 0.80 0.17 P-lsopropyltoluene <0.50 pg/L 0.50 0.19 1,3-Dichlorobenzene <0,50 pg/L 0.50 0.10 sec-Butyl benzene <0.50 pg/L 0.50 0.26 1,3-Dichloropropa ne <0.50 pg/L 0.50 0.11 Styrene <0.50 pg/L 0.50 0.35 ,4-Dichlorobenzene <0.50 pg/L 0.50 0.11 ted-Butyl benzene <0.50 pg/L 0.50 0.31 2,2-Dichloropropane <0.50 pg/L 0.50 0.12 Tetrachloroethene <0.50 pg/L 0.50 0.13 2-Chlorotoluene <0.50 pg/L 0.50 0.16 Tetrahydrofuran <5.0 pg/L 5.0 5.0 4-Chlorotoluene <0.50 Pg/L 0.50 0.17 Toluene <0.50 pg/L 0.50 0.16 Acetone <10 pg/L 10 10 trans-l,2-Dichloroethene <0.50 pg/L 0.50 0.11 Allyl chloride <1.0 pg/L 1.0 1.0 trans-1,3-Dichloropropene <0.50 pg/L 0.50 0.14 Benzene <0.50 pg/L 0.50 0.15 Trichloroethene <0.50 pg/L 0.50 0.14 Bromobenzene <0.50 Fg/L 0.50 0.080 Trichlorofluoromethane <1.0 pg/L 1.0 0.51 Bromochloromethane <0.50 pg/L 0.50 0.23 Trichlorotrifluoroethane <5.0 pg/L 5.0 5.0 Bromodichloromethane <0.50 pg/L 0.50 0.070 Vinyl chloride <1.0 pg/L 1.0 0.11 Bromoform <0.50 pg/L 0.50 0.56 :luorobenzene (Surrogate) 105 % ._ Bromomethane <2.0 pg/L 2.0 0.11 " , Carbon tetrachloride <0.50 pg/L 0.50 0.14 Chlorobenzene <0.50 pg/L 0.50 0.15 Chloroethane <1.0 pg/L 1.0 0.24 Chloroform <0.50 pg/L 0.50 0.18 Chloromethane <2.0 pg/L 2.0 0.090 cis-l,2-Dichloroethene <0.50 pg/L 0.50 0.12 cis-l,3-Dichloropropene <0.50 pg/L 0.50 0.14 Dibromochloromethane <0.50 pg/L 0.50 0.29 Extraction Date: Client ID: Analysis Method: MNDH 465F MW-2 Analysis Date: 06124102 Compound 1,1,1,2-Tetrachloroethane 1,1,1-Tdchloroethane 1,1,2,2-Tetrachloroethane 1,1,2-Trichloroethane l,l-Dichloroethane 1,1 -Dichloroethene 1,1-Dichloropropene 1,2,3-Trichlorobenzene 1,2,3-Trichloropropane 1,2,4~Trichlorobenzene 1,2,4-Trimethyl benzene 1,2-Dibromo-3-chloropropane ~- 1,2-Dibromoethane ,2-Dichlorobenzene 1,2-Dichloroethane 1,2-Dichloropropane 1,3,5-Trimethyl benzene 1,3-Dichlorobenzene 1,3~Dichloropropane 1,4-Dichlorobenzene 2,2-Dichloropropane 2-Chlorotoluene 4-Chlorotoluene Acetone Allyl chloride Benzene Bromobenzene Bromochloromethane Bromodichloromethane Bromoform Bromomethane Carbon tetrachloride Chlorobenzene Chloroethane C~O_~hloroform ;omethane cis-1,2-Dich/oroethene cis-l,3-Dichloropropene Dibromochloromethane Sample Sample Results Units RL MDL Compound Results Units RL MDL <0.50 pg/L 0.50 0.27 Dibromomethane <0.50 Hg/L 0.50 0.37 <0.50 IJg/L 0.50 0.19 Dichlorodifluoromethane <2.0 Hg/L 2.0 0.14 <0.50 Hg/L 0.50 0.21 Dichlorofluoromethane <5.0 pg/L 5.0 5.0 <0.50 Hg/L 0.50 0.18 Ethyl benzene <0.50 Hg/L 0.50 0.16 <0.50 Hg/L 0.50 0.26 Ethyl ether , <5.0 IJg/L 5.0 5.0 <0.50 IJg/L 0.50 0.10 Hexachlorobutadiene <0.50 IJg/L 0.50 0.1z <0.50 IJg/L 0.50 0.1z Isopropyl benzene <0.50 I~g/L 0.50 0.2; <0.50 Pg/L 0.50 0.12 Methyl ethyl ketone <5.0 pg/L 5.0 5.0 <0.50 IJg/L 0.50 0.20 Methyl isobutyl ketone <5.0 IJg/L 5.0 5.0 <0.50 IJg/L 0.50 0.12 Methyl-reft-butyl ether <1.0 ~Jg/L 1.0 1.0 <0.50 pg/L 0.50 0.26 Methylene chloride <5.0 Pg/L 5.0 0.45 <0.80 Pg/L 0.80 0.060 n-Butyl benzene <0.50 Pg/L 0.50 0.38 <0.50 pg/L 0.50 0.37 n~Propyl benzene <0.50 Pg/L 0.50 0.16 <0.50 IJg/L 0.50 Naphthalene <0.50 pg/L 0.50 0.18 <0.50 IJg/L 0.50 0.27 o-Xylene <0.50 IJg/L 0.50 0.35 <0.50 Pg/L 0.50 0.15 P,m-Xylene <1.0 pg/L 1.0 0.31 <0.80 IJg/L 0.80 0.17 p-lsopropyltoluene <0.50 IJg/L 0.50 0.19 <0.50 Pg/L 0.50 0.10 sec-Butyl benzene <0.50 Pg/L 0.50 0.26 <0.50 Pg/L 0.50 0.1' Styrene <0.50 Pg/L 0.50 0.35 <0.50 IJg/L 0.50 0,11 ted-Butyl benzene <0.50 Pg/L 0.50 0.31 <0.50 pg/L 0.50 0.12 Tetrachloroethene 0.88 Pg/L 0.50 0.13 <0.50 Pg/L 0.50 0.16 Tetrahydrofuran <5.0 Hg/L 5.0 5.0 <0.50 pg/L 0.50 0.17 Toluene <0.50 Pg/L 0.50 0.16 <10 IJg/L 10 10 trans-l,2-Dichloroethene <0.50 pg/L 0.50 0.11 <1.0 IJg/L 1.0 1.0 trans-l,3-Dichloropropene <0.50 IJg/L 0.50 0.14 <0.50 Pg/L 0.50 0.15 Trichloroethene <0.50 IJg/L 0.50 0.14 <0.50 ~g/L 0.50 0.080 Trichlorofluoromethane <1.0 Fg/L 1.0 0.51 <0.50 pg/L 0.50 0.23 Trichlorotrifluoroethane <5.0 IJg/L 5.0 5.0 <0.50 IJg/L 0.50 0~070 Vinyl chloride <1.0 JJg/L 1.0 0.11 <0.50 pg/L 0.50 0.56 Fluorobenzene (Surrogate) 103 % <2.0 pg/L 2.0 0.11 - - <0.50 Fg/L 0.50 0.14 <0.50 IJg/L 0.50 0.15 <1.0 IJg/L 1.0 0.24 <0.50 IJg/L 0.50 0.18 <2.0 IJg/L 2.0 0.090 <0.50 pg/L 0.50 0.12 <0.50 pg/L 0.50 0.14 <0.50 Fg/L 0.50 0.29 Legend Technical Services Page 4 of 8 VOC GC MDH 465F Extraction Date: __ Client ID: Analysis Method: MNDH 465F MW-3 Analysis Date: 06/24/02 Sample Sample Compound Results Units RL MDL Compound Results Units RL MDL 1,1,1,2-Tetrachloroethane <0.50 IJg/L 0.50 0.27 Dibromometha ne <0.50 lJg/L 0.50 0.37 1,1,1-Trichloroethane <0.50 pg/L 0.50 0.19 Dichlorodifluoromethane <2.0 IJg/L 2.0 0.14 1,1,2,2-Tetrachloroethane <0.50 IJg/L 0.50 0.21 Dichlorofluoromethane <5.0 IJg/L 5.0 5.0 1,1,2-Trichloroethane <0.50 I. Jg/L 0.50 0.18 Ethyl benzene <0.50 pg/L 0.50 0.16 1, l-Dichloroethane <0.50 IJg/L 0.50 0.26 Ethyl ether <5.0 ~Jg/L 5.0 5.0 1,1-Dichloroethene <0.50 I~g/L 0.50 0.10 Hexachlorobutadiene <0.50 IJg/L 0.50 0.14 1,1-Dichloropropene <0.50 Iug/L 0.50 0.14 Isopropyl benzene <0.50 I~g/L 0.50 0.22 1,2,3-Trichlorobenzene <0.50 I~g/L 0.50 0.12 Methyl ethyl ketone <5.0 IJg/~ 5.0 5.0 1,2,3-Trichloropropane <0.50 IJg/L 0.50 0.20 Methyl isobutyl ketone <5.0 IJg/L 5.0 5.0 1,2,4-Trichlorobenzene <0.50 IJg/L 0,50 0.12 Methyl-tert-butyl ether <1.0 IJg/L 1.0 1.0 1,2,4-Trimethyl benzene <0.50 IJg/L 0.50 0.2~ Methylene chloride <5.0 pg/L 5.0 0.45 1,2-Dibromo-3-chloropropane <0.80 lJg/L 0.80 0.080 n-Butyl benzene <0.50 IJg/L 0.50 0.38 1,2-Dibromoethane <0.50 IJg/L 0.50 0.37 n-Propyl benzene <0.50 IJg/L 0.50 0.16 1,2-Dichlorobenzene <0.50 I~g/L 0.50 0.12 Naphthalene <0.50 pg/L 0.50 0.18 1,2-Dichloroethane <0.50 pg/L 0.50 0.27 o-Xylene <0.50 IJg/L 0,50 0.35 1,2-Dichloropropane <0.50 IJg/L 0.50 0.15 p,m~Xylene <1.0 IJg/L 1.0 0.31 1,3,5-Trimethyl benzene <0.80 IJg/L 0.80 0.17 p-lsopropyltoluene <0.50 Fg/L 0.50 0.19 1,3-Dichlorobenzene <0.50 Fg/L 0.50 0.10 sec-Butyl benzene <0.50 I~g/L 0.50 0.26 1,3-Dichloropropane <0.50 IJg/L 0.50 0.11 Styrene <0.50 I~g/L 0.50 0.35 1,4-Dichlorobenzene <0,50 IJg/L 0.50 0.11 ted-Butyl benzene <0.50 IJg/L 0.50 0.31 2,2-Dichloropropane <0.50 IJg/L 0.50 0.12 Tetrachloroethene <0.50 IJg/L 0.50 0.13 2-Chlorotoluene <0.50 I~g/L 0.50 0.16 Tetrahydrofuran <5.0 IJg/L 5.0 5.0 4-Chlorotoluene <0.50 IJg/L 0.50 0.17 Toluene <0,50 IJg/L 0.50 0.16 Acetone <10 pg/L 10 10 trans-l,2-Dichloroethene <0.50 IJg/L 0.50 0.11 Allyl chloride <1.0 IJg/L 1.0 1.0 trans-l,3-Dichloropropene <0.50 IJg/L 0.50 0.14 Benzene <0.50 IJg/L 0.50 0.15 Trichloroethene 2.4 IJg/L 0,50 0.14 Bromobenzene <0.50 IJg/L 0.50 0.080 Trichlorofluoromethane <1.0 IJg/L 1.0 0.51 Bromochloromethane <0.50 IJg/L 0.50 0.23 Trichlorotrifluoroethane <5.0 I~g/L 5.0 5.0 Bromodichloromethane <0.50 I~g/L 0.50 0.070 Vinyl chloride <1.0 IJg/L 1.0 0.11 Bromoform <0.50 IJg/L 0.50 0.56 Fluorobenzene (Surrogate) 102 % .... Bromomethane <2.0 IJg/L 2.0 0.11 Carbon tetrachloride <0.50 IJg/L 0.50 0.14 Chlorobenzene <0.50 Fg/L 0.50 0.15 Chloroethane <1.0 tJg/L 1.0 0.24 Chloroform <0.50 IJg/L 0.50 0.18 Chloromethane <2.0 IJg/L 2.0 0.090 cis-l,2-Dichloroethene <0.50 I. Jg/L 0.50 0.12 cis-1,3-Dichloropropene <0.50 pg/L 0.50 0.14 Dibromochloromethane <0.50 IJg/L 0.50 0.29 VOC GC MDH 465F Extraction Date: .. Client ID: Analysis Method: Analysis Date: MNDH 465F 06~24~02 Vandenberg Well Compound 1,1,1,2-Tetrachloroethane 1,1,1-Trichloroethane 1,1,2,2-Tetrachloroethane 1,1,2-Trichloroethane 1,1-Dichloroethane 1,1-Dichloroethene 1,1-Dichloropropene 1,2,3-Trichlorobenzene 1,2,3-Trichloropropane 1,2,4-Trichlorobenzene 1,2,4-Trimethyl benzene ~j 1,2-Dibromo-3-chloropropane 1,2-Dibromoethane ,2-Dichlorobenzene 1,2-Dichloroethane 1,2-Dichloropropane 1,3,5-Trimethyl benzene 1,3-Dichlorobenzene 1,3-Dichloropropane 1,4-Dichlorobenzene 2,2-Dichloropropane 2-Chlorotoluene 4-Chlorotoluene Acetone Allyl chloride Benzene Bromobenzene Bromochloromethane Bromodichloromethane Bromoform Bromomethane Carbon tetrachloride Chlorobenzene Chloroethane ~bloroform 3romethane cis-1,2-Dichloroethene cis-1,3-Dichloropropene Dibromochloromethane Sample Results <0.50 <0.50 <0.50 <0.50 <Q.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.80 <0.50 <0.50 <0.50 <0.50 <0.80 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <10 <1.0 <0.50 <0.50 <0.50 <0.50 <0.50 <2.0 <0.50 <0.50 Fg/L <1.0 Fg/L <0.50 Pg/L <2.0 pg/L <0.50 pg/L <0.50 pg/L <0.50 pg/L Units RL pg/L 0.50 pg/L 0.50 pg/L 0.50 pg/L 0.5O pg/L 0.50 pg/L 0.50 pg/L 0.50 pg/L O.5O pg/L O.50 pg/L 0.50 pg/L O.5O pg/L 0.80 pg/L 0.50 pg/L 0.50 pg/L 0.50 pg/L 0.50 pg/L 0.80 pg/L 0.5O pg/L 0.50 pg/L 0.50 pg/L 0.50 pg/L 0.50 pg/L 0.50 pg/L 10 pg/L 1.0 pg/L 0.50 pg/L 0.50 pg/L 0.50 pg/L O.5O pg/L 0.50 pg/L 2.0 pg/L 0.50 0.50 1.0 0.50 2.0 0.50 0.50 0.50 Sample MDL Compound Results Units RL MDL 0.27 Dibromomethane <0.50 Pg/L 0.50 0.37 0.19 Dichlorodifluoromethane <2.0 pg/L 2.0 0.1z 0.21 Dichlorofluoromethane <5.0 Pg/L 5.0 5.0 0.18 Ethyl benzene <0.50 pg/L 0.50 0.16 0.26 Ethyl ether <5.0 pg/L 5.0 5.0 0.10 Hexachlorobutadiene <0.50 pg/L 0.50 0.1~ 0.1z Isopropyl benzene <0.50 pg/L 0.50 0.2; 0.1-~ Methyl ethyl ketone <5.0 pg/L 5.0 5.0 0.20 Methyl isobutyl ketone <5.0 pg/L 5.0 5.0 0.12 Methyl-ted-butyl ether <1.0 pg/L 1.0 1.0 0.26 Methylene chloride <5.0 Fg/L 5.0 0.45 0.060 n-Butyl benzene <0.50 pg/L 0.50 0.38 0.37 n-Propyl benzene <0.50 pg/L 0.50 0.16 0.12 Naphthalene <0.50 pg/L 0.50 0.18 0.27 o-Xylene <0.50 pg/L 0.50 0.35 0.15 p,m-Xylene <1.0 pg/L 1.0 0.31 0.17 p-lsopropyltoluene <0.50 pg/L 0.50 0.19 0.10 sec-Butyl benzene <0.50 pg/L 0.50 0.26 0.11 Styrene <0.50 pg/L 0.50 0.35 0.11 tort-Butyl benzene <0.50 pg/L 0.50 0.31 0.12 Tetrachloroethene <0.50 pg/L 0.50 0.13 0.16 Tetrahydrofuran <5.0 IJg/L 5.0 5.0 0.17 Toluene <0.50 pg/L 0.50 0.16 10 tra ns-1,2-Dichloroethene <0.50 pg/L 0.50 0.11 1.0 trans-l,3-Dichloropropene <0.50 pg/L 0.50 0.14 0.15 Trichloroethene <0.50 pg/L 0.50 0.14 0.080 Trichlorofluoromethane <1.0 pg/L 1.0 0.51 0.23 Trichlorotrifluoroethane <5.0 pg/L 5.0 5.0 0.070 Vinyl chloride <1.0 pg/L 1.0 0.11 0.56 =luorobenzene (Surrogate) 103 % _ 0.11 0.14 0.15 0.24 0.18 0.090 0.12 0.14 0.29 Legend Technical Services Page 6 of 8 =Client Name: Liesch Associates, Inc. Legend Project #: Client Project Number: 790919 Sample #: Client Project Name: Elk River Dump Matrix: Date Sampled: 06/17/02 Date Received: Client Sample ID: Hipsag Well 2002060284 5 Groundwater 06/17/02 VOC GC MDH 465F Extraction Date: Analysis Method: Analysis Date: MNDH 465F 06/24/02 Compound Sample Results Units RL MDL Client ID: ICompound Hipsag Well Sample Results Units RL MDL 1,1,1,2-Tetrachloroethane 1,1,1-Trichloroethane 1,1,2,2-Tetrachloroethane 1,1,2-Trichloroethane 1,1-Dichloroethane 1,1-Dichloroethene !,l-Dichloropropene 1,2,3-Trichlorobenzene 1,2,3-Trichloropropane 1,2,4-Trichlorobenzene 1,2,4-Trimethyl benzene 1,2-Dibromo-3-chloropropane 1,2-Dibromoethane 1,2-Dichlorobenzene 1,2-Dichloroethane 1,2-Dichloropropane 1,3,5-Trimethyl benzene 1,3-Dichlorobenzene 1,3-Dichloropropane 1,4-Dichlorobenzene 2,2-Dichloropropane 2-Chlorotoluene 4-Chlorotoluene Acetone Allyl chloride Benzene Bromobenzene Bromochloromethane Bromodichloromethane Bromoform Bromomethane Carbon tetrachloride ChlorObenzene Chloroethane Chloroform Chloromethane cis-1,2-Dichloroethene cis-1,3-Dichloropropene Dibromochloromethane <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.80 <0.50 <0.50 <0.50 <0.50 <0.80 <0.50 <0,50 <0.50 <0.50 <0.50 <0.50 <10 <1.0 <0.50 <0.50 <0.50 <0.50 <0.50 <2.0 <0.50 <0.50 <1.0 <0.50 <2.0 <0.50 <0.50 <0.50 pg/L pg/L pg/L pg/L pg/L pg/L pg/L pg/L pg/L pg/L pg/L pg/L pg/L pg/L pg/L pg/L pg/L pg/L pg/L pg/L pg/L pg/L pg/L pg/L pg/L pg/L pg/L pg/L pg/L pg/L pg/L pg/L pg/L pg/L pg/L pg/L pg/L pg/L pg/L 0.50 0.50 0.50 0.50 0.50 0.50 0.50 0.50 0.50 0.50 0.50 0.80 0.50 0.50 0.50 0.50 0.80 0.50 0.50 0.50 0.50 0.50 0.50 10 1.0 0.50 0.50 0.50 0.50 0.50 2.0 0.50 0.50 1.0 0.50 2.0 0.50 0.50 0,50 0.27 0.19 0.21 0.18 0.26 0.10 0.14 0.12 0.20 0.12 0.26 0.060 0.37 0.12 0.27 0.15 0.17 0.10 0.11 0.11 0.12 0.16 0.17 10 1.0 0.15 Om 080 0.23 0.070 0.56 0.11 0.14 0.15 0.24 0.18 0.090 0.12 0.14 0.29 Dibromomethane Dichlorodifluoromethane Dichlorofluoromethane Ethyl benzene Ethyl ether Hexachlorobutadiene Isopropyl benzene Methyl ethyl ketone :Methyl isobutyl ketone Methyl-tert-butyl ether Methylene chloride n-Butyl benzene n-Propyl benzene Naphthalene o-Xylene p,m-Xylene p-lsopropyltoluene sec-Butyl benzene Styrene tert-Butyl benzene Tetrachloroethene Tetrahydrofuran Toluene trans-1,2-Dichloroethene trans-1,3-Dichloropropene Trichloroethene Trichlorofluoromethane Trichlorotrifluoroethane Vinyl chloride Fluorobenzene (Surrogate) <0.50 pg/L 0.50 0.37 <2.0 pg/L 2.0 0.14 <5.0 pg/L 5.0 5.0 <0.50 pg/L 0.50 0.16 <5.0 pg/L 5.0 5.0 <0.50 pg/L 0.50 0.14 <0.50 pg/L 0.50 0.22 <5.0 pg/L 5.0 5.0 <5.0 pg/L 5.0 5.0 <1.0 pg/L 1.0 1.0 <5.0 pg/L 5.0 0.45 <0.50 pg/L 0.50 0.38 <0.50 pg/L 0.50 0.16 <0.50 pg/L 0.50 0.18 <0.50 pg/L 0.50 0.35 <1.0 pg/L 1.0 0.31 <0.50 pg/L 0.50 0.19 <0.50 pg/L 0.50 0.26 <0.50 pg/L 0,50 0.35 <0.50 pg/L 0.50 0.31 <0.50 pg/L 0.50 0.13 <5.0 pg/L 5.0 5.0 <0.50 pg/L 0.50 0.16 <0.50 pg/L 0.50 0.11 <0.50 pg/L 0.50 0.14 <0.50 pg/L 0.50 0.14 <1.0 pg/L 1.0 0.51 <5.0 pg/L 5.0 5.0 <1.0 pg/L 1.0 0.11 105 % - - Extraction Date: .. Analysis Method: MNDH 465F Analysis Date: 06/25/02 Compound 1,1,1,2-Tetrachloroethane 1,1,1-Trichloroethane 1,1,2,2-Tetrachloroethane 1,1,2-Trichloroethane 1,1-Dichloroethane 1,1-Dichloroethene 1,1-Dichloropropene 1,2, 3-Trichlorobenzene 1,2,3-Trichloropropane 1,2,4-Trichlorobenzene 1,2,4-Trimethyl benzene 1,2-Dibromo-3-chloropropane - 1,2-Dibromoethane ,2-Dichlorobenzene 1,2-Dichloroethane 1,2-Dichloropropane 1,3,5-Trimethyl benzene 1,3-Dichlorobenzene 1,3-Dichloropropane 1,4-Dichlorobenzene 2,2-Dichloropropane 2-Chlorotoluene 4-Chlorotoluene Acetone Allyl chloride Benzene Bromobenzene Bromochloromethane Bromodichloromethane Bromoform Bromomethane Carbon tetrachloride Chlorobenzene Chloroethane ¢_231oroform Jromethane cis-1,2-Dichloroethene cis-1,3-Dichloropropene Dibromochloromethane ClientlD: Trip Blank Sample Sample Results Units RL MDL Compound Results Units RL MDL <0.50 pg/L 0.50 0.27 Dibromomethane <0.50 pg/L 0.50 0.37 <0.50 pg/L 0.50 0.19 Dichlorodifluoromethane <2.0 pg/L 2.0 0.1z <0.50 pg/L 0.50 0.21 Dichlorofluoromethane <5.0 pg/L 5.0 5.0 <0.50 pg/L 0.50 0.18 Ethyl benzene <0.50 pg/L 0.50 0.16 <0.50 pg/L 0.50 0.26 Ethyl ether <5.0 pg/L 5.0 5.0 <0.50 pg/L 0.50 0.10 Hexachlorobutadiene <0.50 pg/L 0.50 0.1z <0.50 pg/L 0.50 0.14 Isopropyl benzene <0.50 pg/L 0.50 0.22 <0.50 pg/L 0.50 0.12 Methyl ethyl ketone <5.0 pg/L 5.0 5.0 <0.50 pg/L 0.50 0.20 Methyl isobutyl ketone <5.0 pg/L 5.0 5.0 <0.50 pg/L 0.50 0.12 Methyl-teA-butyl ether <1.0 pg/L 1.0 1.0 <0.50 pg/L 0.50 0.26 Methylene chloride <5.0 pg/L 5.0 0.45 <0.80 pg/L 0.80 0.060 n-Butyl benzene <0.50 pg/L 0.50 0.38 <0.50 pg/L 0.50 0.37 n-Propyl benzene <0.50 pg/L 0.50 0.16 <0.50 pg/L 0.50 0.12 Naphthalene <0.50 pg/L 0.50 0.18 <0.50 pg/L 0.50 0.27 o-Xylene <0.50 pg/L 0.50 0.35 <0.50 pg/L 0.50 0.15 P,m-Xylene <1.0 pg/L 1.0 0.31 <0.80 pg/L 0.80 0.17 p-lsopropyltoluene <0.50 pg/L 0.50 0.19 <0.50 pg/L 0.50 0.10 sec-Butyl benzene <0.50 pg/L 0.50 0.26 <0.50 pg/L 0.50 0.1: Styrene <0.50 pg/L 0.50 0.35 <0.50 pg/L 0.50 0.11 ted-Butyl benzene <0.50 pg/L 0.50 0.31 <0.50 pg/L 0.50 0.12 TetrachlOroethene <0.50 pg/L 0.50 0.13 <0.50 pg/L 0.50 0.16 Tetrahydrofuran <5.0 pg/L 5.0 5.0 <0.50 pg/L 0.50 0.17 Toluene <0.50 pg/L 0.50 0.16 <10 pg/L 10 10 trans-l,2-Dichloroethene <0.50 pg/L 0.50 0.11 <1.0 pg/L 1.0 1.0 trans-l,3-Dichloropropene <0.50 pg/L 0.50 0.14 <0.50 pg/L 0.50 0.15 Trichloroethene <0.50 pg/L 0.50 0.14 <0.50 Pg/L 0.50 0.080 Trichlorofluoromethane <1.0 pg/L 1.0 0.51 <0.50 pg/L 0.50 0.23 Trichlorotrifluoroethane <5.0 pg/L 5.0 5.0 <0.50 pg/L 0.50 0.070 Vinyl chloride <1.0 pg/L 1.0 0.11 <0.50 pg/L 0.50 0.56 Fluorobenzene (Surrogate) 105 % ._ <2.0 pg/L 2.0 0.11 - <0.50 pg/L 0.50 0.14 <0.50 ~Jg/L 0.50 0.15 <1.0 pg/L 1.0 0.24 <0.50 pg/L 0.50 0.18 <2.0 pg/L 2.0 0.090 <0.50 pg/L 0.50 0.12 <0.50 pg/L 0.50 0.14 <0.50 pg/L 0.50 0.29 Legend Technical Services Page 8 of 8 Client Name: IlClient Project Number: IIClient Project Name: IJDate Sampled: IIClient Sample ID: Liesch Associates, Inc. Legend Project #: 790919 Sample #: Elk River Dump Matrix: 06/17/02 Date Received: Method Blank 2002060284 7 Groundwater 06/17/02 VOC GC MDH 465F Extraction Date: Analysis Method: Analysis Date: MNDH 465F 06/24/02 Client ID: Method Blank Compound Sample Results Units RL MDL ICompound Sample Results Units RL MDL 1,1,1,2-Tetrachloroethane 1,1,1 -Trichloroethane 1,1,2,2-Tetrachloroethane 1,1,2-Trichloroethane 1,1-Dichloroethane 1,1-Dichloroethene 1,1-Dichloropropene 1,2,3-Trichlorobenzene 1,2, 3-Trichloropropane 1,2,4-Trichlorobenzene 1,2,4-Trimethyl benzene 1.2-Dibromo-3-chloropropane 1,2-Dibromoethane 1,2-Dichlorobenzene 1,2-Dichloroethane 1,2-Dichloropropane 1,3,5-Trimethyl benzene 1,3-Dichlorobenzene 1,3-Dichtoropropane 1,4-Dichlorobenzene 2,2-Dichloropropane 2-Chlorotoluene 4-Chlorotoluene Acetone Allyl chloride Benzene Bromobenzene Bromochloromethane Bromodichloromethane Bromoform Bromomethane Carbon tetrachloride Chlorobenzene Chloroethane Chloroform Chloromethane cis-1,2-Dichloroethene cis-l,3-Dichloropropene Dibromochtoromethane <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.80 <0.50 <0.50 <0.50 <0,50 <0.80 <0.50 <0.50 <0.50 <0.50 <0,50 <0.50 <10 <1.0 <0.50 <0.50 <0.50 <0.50 <0.50 <2.0 <0.50 <0.50 <1.0 <0.50 <2.0 <0.50 <0.50 <0.50 pg/L pg/L pg/L pg/L pg/L pg/L pg/L pg/L pg/L pg/L pg/L pg/L pg/L pg/L pg/L pg/L pg/L pg/L pg/L pg/L pg/L pg/L pg/L pg/L pg/L pg/L pg/L pg/L pg/L pg/L pg/L pg/L pg/L pg/L pg/L pg/L pg/L pg/L pg/L 0.50 0.50 0.50 0.50 0.50 0.50 0.50 0.50 0.50 0.50 0.50 0.80 0.50 0.50 0.50 0.50 0.80 0.50 0.50 0.50 0.50 0.50 0.50 10 1.0 0.50 0.50 0.50 0.50 0.50 2.0 0.50 0.50 1.0 0.50 2.0 0.50 0.50 0.50 0.27 0.19 0.21 0.18 0.26 0.10 0.14 0.12 0.20 0.12 0.26 0.060 0.37 0.12 0.27 0.15 0.17 0.10 0.11 0.11 0.12 0.16 0,17 10 1.0 0.15 0.080 0.23 0.070 0.56 0.11 0.14 0.15 0.24 0.18 0.090 0.12 0.14 0.29 Dibromomethane Dichlorodifluoromethane Dichlorofluoromethane Ethyl benzene Ethyl ether Hexachlorobutadiene Isopropyl benzene Methyl ethyl ketone Methyl isobutyl ketone Methyl-tent-butyl ether Methylene chloride n-Butyl benzene n-Propyl benzene Naphthalene o-Xylene p,m-Xytene p-lsopropyltoluene sec-Butyl benzene Styrene tent-Butyl benzene Tetrachloroethene Tetrahydrofuran Toluene trans-l,2-Dichloroethene trans-l,3-Dichloropropene Trichloroethene Trichlorofluoromethane Trichlorotrifluoroethane Vinyl chloride Fluorobenzene (Surrogate) <0.50 <2.0 <5.0 <0.50 <5.0 <0.50 <0.50 <5.0 <5.0 <1.0 <5.0 <0.50 <0.50 <0.50 <0.50 <1.0 <0.50 <0.50 <0.50 <0.50 <0.50 <5.0 <0.50 <0.50 <0.50 <0.50 <1.0 <5.0 <1.0 107 pg/L pg/L pg/L pg/L pg/L pg/L pg/L pg/L pg/L pg/L pg/L pg/L pg/L pg/L pg/L pg/L pg/L pg/L pg/L pg/L pg/L pg/L pg/L pg/L pg/L pg/L pg/L pg/L pg/L % 0.50 2.0 5.0 0.50 5.0 0.50 0.50 · 5.0 5.0 1.0 5.0 0.50 0.50 0.50 0.50 1.0 0.50 0.50 0.50 0.50 0.50 5.0 0.50 0.50 0.50 0.50 1.0 5.0 1.0 0.37 0.14 5.0 0.16 5.0 0.14 0.22 5.0 5.0 1.0 0.45 0.38 0.16 0.18 0.35 0.31 0.19 0.26 0.35 0.31 0.13 5.0 0,16 0.11 0.14 0.14 0.51 5.0 0.11 Page [ } [ LEGEND TECItJ }~IL SER VICES, INC. 775 Vandalia Street, St. Paul, MN 55114- Telephone: 651/642-1150 Fax: 651/642-1239 CItAIN-OF-CUSTODY RECORD Report To: ~'~ ~,G~ p _NN ~;,% ~/~ yN.~ dy.v,x.., Turnaround Time: o~al Date Needed: o ) ~ RUSH Date Needed: g Sampled By: ~ C ~~ ~ ~ Condition Received: ~ceived on Ice ~ ~ Project No.:.7~ O t ~ · ~¢ Purchase Order No.: ~ FieldReCeived Ambientsheet eceived at--°C Collection Sample Lab S~le ~scription Date Time Matrix lO No. Item Field ID ,,~ ~)~ Sam~~: Item Relinquished By: Date: Time: ' Accepted By: Date: Time: No.: l,fo' Com~nts: [~ ~' ' FORM FI.I)-007 (5/02) I'LEtlSE REI/IEIJ~ TERM,Y ,.! ND CONDITIONS BEFORE Si(;NING ~Vhite Col})' - Original Accompanies Shipment to l.ab Yellow Copy - Lab Pink Copy - Cuslomcr or Field Copy