2021-06-02_HYDROLOGY - M1977342 ‎(2)‎

• Permit No: M1977342
• IBM Index Class Name: HYDROLOGY
• Doc Date: 6/2/2021
• Doc Name: Water Monitoring - Groundwater
• From: Climax Molybdenum
• To: DRMS
• Email Name: PSH
• Media Type: D
• Archive: No

_- Climax Molybdenum Table 1
A-do 1 Annual Water Monitoring Data
A Freeport-McMoRan Company
Henderson Mine
Location Sample Sample Analytical Iron,Dissolved' Manganese,Dissolved' Selenium,Dissolved Zinc,Dissolved Specific Conductivity' PH Sulfate'
Date Time Laboratory (pg/L as Fe) (pg/L as Mn) (pg/L as Se) (pg/L as Zn) (µS/cm) (Standard Units) (mg/L)
MNGW-1 6/8/2015 950 Accutest 14.5 0.9 <0.42 18.0 171.0 6.5 75.0
MNGW-1 8/13/2015 950 Accutest <9.2 1.3 <0.42 9.9 136.7 5.5 46A
MNGW-1 11/11/2015 1225 Accutest 17.6 8.5 <0.42 20.2 343.1 6.7 120.0
MNGW-1 6/20/2016 9:30 Accutest 12.5 2.6 <0.42 11.3 184.9 6.3 58.6
MNGW-1 8/15/2016 1502 Accutest <6.9 2.9 2.00 17.3 170.5 5.9 56.1
MNGW-1 12/7/2016 1240 Accutest 178.0 2.0 <0.42 37.4 421.7 6.1 169.0
MNGW-1 6/7/2017 930 Accutest <9.2 1.9 <0.42 15.0 207.4 6.3 72.4
MNGW-1 8/7/2017 1325 Accutest <9.2 2.1 0.52 15.1 161.7 6.A 59.4
MNGW-1 11/30/2017 11:00 Accutest 61.4 1.4 <0.42 27.8 300.4 6.2 113.0
MNGW-1 5/22/2018 1029 Accutest <9.2 1.1 <0.42 19.2 248.5 6.3 81.3
MNGW-1 8/15/2018 11:30 Accutest <9.2 2.5 <0.42 18.8 1944. 6.2 66.9
MNGW-1 12/12/2018 1211 Accutest 230.0 1.9 <0.42 38.7 368.8 6.5 144.0
MNGW-1 5/20/2019 11:37 ACZ 15 19.7 <0.10 19.0 257.3 6.0 74A
MNGW-1 8/20/2019 11:04 ACZ 7.0 17.1 <0.10 24.0 199.9 5.9 73.8
MNGW-1 12/3/2019 1040 ACZ 23.0 143.0 <0.10 44.0 304.3 6.2 82.0
MNGW-1 5/14/2020 1050 ACZ <5 0.9 <0.10 16.0 267.3 6.3 79.1
MNGW-1 8/20/2020 11:00 ACZ <5 0.0 <0.10 16.0 195.5 6.0 72.8
MNGW-1 12/14/2020 958 ACZ <5 12.0 <0.10 482 370.5 6.2 137.0
Numeric Protection Limit(NPL) 1 5,000 1 790 1 20 2,000 1 N/A(report) 1 6.5-8.5 1 N/A(report)
Location Sample Sample Analytical Iron,Dissolved' Manganese,Dissolved Selenium,Dissolved Zinc,Dissolved Specific Conductivity' PH Sulfate'
Date Time Laboratory (pg/L as Fe) (pg/L as Ml (pg/L as Se) (pg/L as Zn) (PS/cm) (Standard Units) (mg/L)
BG-20 6/8/2015 1500 Accutest 38.3 2.7 <0.42 1T9 40.2 6.9 5.6
BG-20 8/13/2015 1350 Accutest <9.2 2.4 <OA2 8.6 36.7 7.6 10A
BG-20 11/11/2015 11:25 Accutest <9.2 5.9 <0.42 12.0 78.7 7.6 16.1
BG-20 6/20/2016 1415 Accutest 12.5 2.2 <0.42 17.2 33.6 7.3 5.4
BG-20 8/15/2016 1337 Accutest 10.5 1.9 <1.1 15.6 76A 7.6 10.7
BG-20 12/7/2016 945 Accutest 32.4 16.7 <0.42 15.6 71.6 6.9 15.4
BG-20 6f7/2017 13:35 Accutest 49.2 4.5 <0.42 16.9 37.0 7.1 5A
BG-20 BF12017 15:45 Accutest <9.2 2.0 <0.42 10.2 51.6 7.3 10.9
BG-20 11/30/2017 1255 Accutest 19A 1.8 <0.42 13.6 71.3 7.1 15.6
BG-20 6/22/2018 11:17 Accutest <9.2 2.0 <0.42 19.8 43.6 6.8 6.3
BG-20 8/15/2018 13:20 Accutest <9.2 3.0 <0.42 12.0 65.3 7.2 14.4
BG-20 12/12/2018 10:45 Accutest 53.4 1.9 <0.42 11.1 77.5 7.6 16.7
BG-20 5/20/2019 15:15 ACZ 26.0 7.6 <0.10 18.0 80.1 7.0 12.5
BG-20 8/20/2019 1250 ACZ <5.0 1.5 <0.10 9.0 58.8 7.0 12.7
BG-20 12/3/2019 1245 ACZ <5.0 11A <0.10 13.0 84.3 6.8 15.8
BG-20 5/14/2020 1230 ACZ 48.0 5.9 <0.10 17.0 63.2 7.4 11.9
BG-20 8/18/2020 1225 ACZ <5.0 1.7 <0.10 &0 63.9 7.4 11.8
BG-20 12/14/2020 11:17 ACZ <5.0 2.4 <0.10 11.0 78.2 7.5 1 22.1
Notes'
RED=Resulting concentration falls outside of the Numeric Protection Limit(NPL(. <=not detected at concentrations exceeding the laboratory method detection limit
BLUE=Rosner/Dixon Statistical outlier mg/L=milligrams per liter
'Analyzed by EPA Method 200.7 or 200.8. pg/L=micrograms per liter
2Analyzed by EPA Method 200.8. pS/cm=micro Siemens per centimeter
'Analyzed using field instrumentation. EPA=Environmental Protection Agency
'Analyzed by EPA Method 300.0. (Blank Field)=No data was required for this parameter during monthly pH assessment monitoring