2021-05-06_HYDROLOGY - M1977344

• Permit No: M1977344
• IBM Index Class Name: Hydrology
• Doc Date: 5/6/2021
• Doc Name: Water Monitoring - Groundwater
• From: Arcadis
• To: DRMS
• Email Name: TC1
• Email Name: MAC
• Media Type: D
• Archive: No

Table 3. Historical Cl, K, and Na Concentrations in Monitoring Well MW-7
Holcim (US) Inc. Portland Plant (mg/L)
Date Cl K Na
9/11/1998 32.6 17 112
11/30/1999 26.5 13 144
5/5/2000 29.4 15.6 185
8/11/2000 25.9 16 164
11/7/2000 27.2 12.8 161
2/8/2001 27.6 11.2 177
5/21/2001 28.1 11.1 186
8/7/2003 25.0 J 11 170
3/1/2008 37 10.4 226
4/1/2009 42 7.2 236
J- concentration below reportable limit but above method detection limit