Chemical composition of water from the Inyan Kara aquifer in eastern North Dakota [17].

Table 2: Chemical composition of water from the Inyan Kara aquifer in eastern North Dakota [17].

Station Identification Number	pH	Dissolved Solids mg/L	Fe mg/L	Na mg/L	K mg/L	Ca mg/L	Mg mg/L	Cl^- mg/L	SO₄^2- mg/L	HCO₃^- mg/L
473832099320201	8.3	4920	0.06	980	3	5.2	1.2	320	1300	4704
472730099295802	8.2	6050	1.2	1100	4	6.8	3.2	440	1200	6707
472724099270501	8.7	6050	0.52	1000	3	4	1.9	350	1200	7100
472400099012001	8.1	5390		1000	40	8	6.1	430	1200	5500
472025098594401	8.1	4980		1000	16	4	4.9	300	1200	5000
472633097315501	7.7	4210	0.1	970	24	60	21	930	730	3000
473418097304401	7.3	5370	3.4	1000	46	370	120	1400	1500	1900
472951097255702	7.8	4780		800	39	310	110	940	1500	2200
472430097220701	7.3	4130		820	34	140	44	660	1200	2500
472430097125301	7.6	4860		1100	38	110	30	800	1400	2800
474858097134601	7.7	6060		1100	33	330	130	1600	1200	3400
474424097130201	7.1	5400		1000	28	300	92	1300	1300	2800
474905097115001	7.8	6130		1200	30	330	100	1500	1400	3200
474537097114001	8	5230		1100	39	230	77	1200	1400	2400
474530097101702	7.9	5330		1200	35	230	83	1400	1400	2000
474208097071301	7.4	5180		780	12	300	130	480	2000	3000
474109097034901	7.6	6240		900	0	250	86	1200	1000	2800
Average	7.8	5312		1003	25	176	61	897	1302	3589