2019-05-03_HYDROLOGY - M1977344

• Permit No: M1977344
• IBM Index Class Name: Hydrology
• Doc Date: 5/3/2019
• Doc Name: Groundwater Monitoring Report
• From: Arcadis US
• To: DRMS
• Type & Sequence: TR6
• Annual Report Year: 2019
• Email Name: TC1
• Media Type: D
• Archive: No

' Table 1
Depth to Water and Sodium Concentrations
for Holcim-Portland Quarry Monitoring Wells MW-7 $ MW-13
MW-7 MW-13
Date DTW(ft) Sodium (mg/L) DTW(ft) Sodium (mg/L)
8/29/1998 22.25 — -- --
' 9111/1998 112 -- --
5/20/1999 21.53 -- -- --
9/14/1999 22.7 -- -- --
11/30/1999 23.21 144 == y=
5/5/2000 185
8/11/2000 -- 164 -- --
11/7/2000 == 161
2/8/2001 177
5/21/2001 -- 186 -- --
8/8/2003 -- 170
7/9/2004 21.14
3/19/2008 25 226 -- --
4/21/2009 25.33 236 18.43 249
6/1/2009 25.17 17.69 193
9/1/2009 25.17 -- 19.16 225
12/1/2009 25.29 -- 13.89 199
3/18/20101 25.62 228 13.98 164
3/30/2011 25.02 231 15.78 170
3/19/2012 25.65 258 16.6 203
9/28/2012 24.99 250 17.91
3/18/2013 25.73 1 297 1 14.63 201
3/19/20141 25.26 1 253 1 15.41 1 181
Notes:
ft-feet
mg/L- milligrams per liter