2015-10-27_HYDROLOGY - M1977215

• Permit No: M1977215
• IBM Index Class Name: Hydrology
• Doc Date: 10/27/2015
• Doc Name: Sampling Frequencty Reduction - Groundwarer Moitoring
• From: Rio Grande Silver
• To: DRMS
• Email Name: THM
• Media Type: D
• Archive: No

i
AraZ Laboratories, Inc.
2773 Downhill Drive Steamboat Springs, CO 80487 [phone]
Rio Grande Silver, Inc. ACZ Project ID: L26557
Chemical Oxygen Demand M410.4
ACZ ID Type Analyzed PCN/SCN ac Sample Found Units Rec Lower Upper RPO Limit Quall
WG390370
WG3903701CV ICV 09/15/15 9:00 WC150107-2 200 204 mg/L 102 90 110
WG390370ICB ICB 09/15/15 9:06 U mg/L -20 20
WG390370LRB1 LRB 09/15/15 9:13 U mg/L -20 20
WG39037OLFB1 LFB 09/15/15 9:20 WC150414-3 50 53 mg/L 106 90 110
WG390370CCV1 CCV 09/15/1510:20 WC150414-2 400 400 mg/L 100 90 110
WG390370CCB1 CCB 09/15/1510:27 U mg/L -20 20
L26557-02DUP DUP 09/15/1510:47 U U mg/L 0 20 RA
L26557-02AS AS 09/15/1510:54 WC150414-3 50 U 52 mg/L 104 90 110
WG390370CCV2 CCV 09/15/1511:41 WC150414-2 400 399 mg/L 100 90 110
WG390370CCB2 CCB 09/15/1511:48 U mg/L -20 20
L26605-04DUP DUP 09115/1512:22 U 11 mg/L 200 20 RA
L26605-04AS AS 09/15/1512:28 WC150414-3 50 U 65 mg/L 130 90 110 M1
WG390370LRB2 LRB 09/15/1512:35 U mg/L -20 20
WG390370LFB2 LFB 09/15/1512:42 WC150414-3 50 53 mg/L 106 90 110
WG390370CCV3 CCV 09/15/1513:02 WC150414-2 400 403 mg/L 101 90 110
WG390370CCB3 CCB 09/15/1513:09 U mg/L -20 20
WG390370CCV4 CCV 09/15/1514:23 WC150414-2 400 402 mg/L 101 90 110
WG390370CCB4 CCB 09/15/1514:29 U mg/L -20 20
Chloride M300.0-Ion Chromatography
ACZ to Type Analyzed PCN/SCN QC Sample Found Units Rec Lower Upper RPD Limit Qual
WG390172
WG3901721CV ICV 09/10/1517:16 W1150810-5 20.02 19.6 mg/L 98 90 110
WG3901721CB ICB 09/10/1517:34 U mg/L -1.5 1.5
WG390390
WG39039OCCV1 CCV 09/15/1511:55 W1150914-3 50 49.7 mg/L 99 90 110
WG39039OCCB1 CCB 09/15/1512:12 U mg/L -1.5 1.5
WG39039OPQV PQV 09/15/1512:30 W1150901-2 2.4975 2.33 mg/L 93 70 130
WG39039OLFB1 LFB 09/15/1512:48 W1150409-2 30 29.3 mg/L 98 90 110
WG390390CCV2 CCV 09/15/1515:29 W1150914-3 50 49.7 mg/L 99 90 110
WG390390CCB2 CCB 09/15/1515:47 U mg/L -1.5 1.5
WG390390CCV3 CCV 09/15/1519:04 W1150914-3 50 49.8 mg/L 100 90 110
WG390390CCB3 CCB 09/15/1519:22 U mg/L -1.5 1.5
WG390390LFB2 LFB 09/15/15 21:27 W1150409-2 30 29.3 mg/L 98 90 110
L26506-17DUP DUP 09/15/15 22:03 .69 .64 mg/L 8 20 RA
WG390390CCV4 CCV 09/15/15 22:39 W1150914-3 50 49.8 mg/L 100 90 110
WG390390CCB4 CCB 09/15/15 22:57 U mg/L -1.5 1.5
L26524-01AS AS 09/15/15 23:15 W1150409-2 30 .51 29.7 mg/L 97 90 110
WG390390CCV5 CCV 09/16/151:56 W1150914-3 50 49.9 mg/L 100 90 110
WG390390CCB5 CCB 09/16/15 2:14 U mg/L -1.5 1.5
L26557-1510011525 Page 17 of 48