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Instrumental Research, Inc. <br />7800 Main Street NE <br />Fridley, MN 55432. <br />Ph. 763-571-3698 Fax. 763-571-3372 <br />LABORATORY ANALYSIS REPORT 290-20 Monday, April 27, 2020 <br />MDH CERTIFIED LABORATORY 027-003-130 EPA LAB CODE MN 00076 <br />Attn: Paul Palzer <br />City of Centerville Date Collected: 4/9/2020 <br />1880 Main Street Date Received: 4/9/2020 <br />Centerville, MN 55038 Collected By: Client <br />Parameter/Method <br />Sample ID <br />Results <br />Units <br />MDL <br />Reporting <br />Limit <br />Analysis <br />Date <br />Hardness (EDTA) <br />2085 Cedar (290-20-01) <br />232 <br />mg/L <br />1.188 <br />5.00 <br />4/10/2020 <br />SM 19th 2340 C. <br />Well41 (290-20-02) <br />216 <br />mg/L <br />1.188 <br />5.00 <br />4/10/2020 <br />Well 42 (290-20-03) <br />236 <br />mg/L <br />1.188 <br />5.00 <br />4/10/2020 <br />Manganese* <br />2085 Cedar (290-20-01) <br />0.97 <br />ug/L <br />0.50 <br />4/17/2020 <br />EPA 200.8 <br />Well41 (290-20-02) <br />270 <br />ug/L <br />0.50 <br />4/17/2020 <br />Well 42 (290-20-03A) <br />193 <br />ug/L <br />0.50 <br />4/17/2020 <br />Tritium* <br />Well 42 (290-20-03B) <br />152 +/-13 <br />pCi/L <br />4/22/2020 <br />EPA 906.0 <br />The results in this report apply only to the samples analyzed in accordance with the chain of custody document. This report <br />must be reproduced in its entirety. <br />Page 1 of 2 <br />