Table 9. Water-quality data for samples collected from selected deep wells
[μS/cm, microsiemens per centimeter; CaCO3, calcium carbonate; mg/L, milligrams per liter; μM/L, micromoles per liter; --, no data; <, less than; *, see table 8 for date samples were collected for trichloroethylene, cis-1,2,-dichloroethylene, and vinyl chloride]
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Nitro-
Nitro- gen
Water Spe- gen am- Manga-
level cific Alka- nitrate, monia, nese,
(meters pH con- linity Dis- Total dis- dis- dis-
above (stand- duct- (mg/L solved organic solved solved solved
Well sea ard ance as oxygen carbon (mg/L (mg/L (mg/L
name Date level) units) (μS/cm) CaCO3) (mg/L) (mg/L) as N) as N) as Mn)
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Well 4D 02/12/97 215.01 7.4 476 180 0.2 -- <0.02 0.28 0.04
08/21/97* 213.12 7.0 179 90 1.2 -- 0.06 0.02 0.04
5/98 -- -- -- -- -- -- -- -- --
Well 1D 11/12/96* 210.34 6.9 830 265 <0.1 -- 0.42 0.04 0.07
02/11/97 214.71 6.7 995 335 <0.1 -- 0.03 0.30 0.11
08/21/97* 213.36 7.6 818 259 <0.1 2.5 0.12 0.32 <0.01
11/05/97 206.24 7.5 756 253 <0.1 1.3 <0.02 0.50 <0.01
02/17/98 7.2 634 230 0.3 1.4 0.30 0.50 <0.20
04/30/98 210.85 7.4 708 202 <0.1 7.5 0.30 0.09 <0.20
05/21/98 207.80 6.2 736 220 0.2 0.7 0.20 0.13 <0.20
Well 3D 11/13/96* 210.30 7.1 725 251 -- -- 0.14 0.47 0.01
02/12/97 214.52 7.3 2,342 450 -- -- <0.02 3.40 <0.01
08/21/97* 213.23 7.5 818 284 <0.1 -- 0.04 0.43 0.05
11/05/97 206.18 7.3 844 319 <0.1 -- <0.02 0.71 0.01
02/17/98 7.1 711 294 <0.1 4.0 0.10 0.77 0.10
04/30/98 210.08 7.3 781 240 0.2 8.4 0.20 0.85 0.90
05/21/98 207.11 6.7 688 263 <0.1 1.3 0.20 0.78 0.20
Well 2D 02/11/97 214.27 7.0 598 -- <0.1 -- 0.26 1.70 0.02
08/20/97* 213.37 7.3 427 156 3.4 3.8 0.11 0.02 0.02
11/04/97* 205.73 7.3 406 153 3.3 -- 0.10 0.41 --
02/17/98 6.9 340 135 2.0 4.0 0.60 0.14 <0.20
04/30/98 210.57 7.3 509 138 <0.1 7.7 0.20 0.24 <0.20
05/21/98 207.21 6.4 400 159 0.1 7.9 0.20 0.26 <0.20
Well 11D 11/13/96* 209.47 8.2 1,242 113 <0.1 -- 0.03 0.47 <0.01
02/11/97* 213.35 7.7 1,095 163 <0.1 -- 0.02 0.30 0.02
08/20/97* 216.23 8.2 776 137 <0.1 -- 0.16 0.14 0.02
Well 12D 08/20/97* 222.65 7.1 507 105 5.5 6.3 0.72 0.05 0.05
11/04/97 218.43 7.2 557 266 0.4 -- 0.10 0.13 --
02/17/98 6.9 389 135 5.8 4.6 0.20 0.02 <0.20
04/30/98 220.32 7.4 369 82 5.3 5.9 0.30 0.10 <0.20
05/21/98 217.22 6.3 590 210 0.2 2.4 0.40 0.32 <0.20
Well 14D 11/13/96* 220.54 6.8 738 333 -- -- 0.04 0.06 0.14
02/11/97* 219.30 7.2 750 330 -- -- <0.02 0.16 0.14
11/04/97* 220.03 7.3 789 338 1.0 1.8 0.19 0.09 0.28
Well 15D-A 11/13/96 223.35 6.9 713 277 -- -- 0.58 0.03 0.03
02/12/97 223.60 7.2 830 230 -- -- 0.53 0.02 0.03
Well 15D-C 11/13/96 221.67 9.4 329 128 -- -- 0.05 0.06 <0.01
02/12/97 221.88 9.6 346 155 <0.1 -- -- 0.17 <0.01
Well 16D-B 08/22/97 -- 9.6 627 140 1.8 38.0 0.15 2.30 0.02
11/04/97 -- 10.5 697 126 0.3 -- 0.20 4.08 --
Well 10D-B 08/22/97 220.52 8.2 310 138 <0.1 2.7 0.06 0.05 0.04
11/04/97 220.24 7.0 531 227 <0.1 -- <0.02 0.08 --
Table 9. Water-quality data for samples collected from selected deep wells--Continued
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Chlo- cis-
Iron, Sulfate, ride, Tri- 1,2-Di-
dis- dis- Sulfide, dis- Calcite chloro- chloro- Vinyl
solved solved dissolved solved satur- ethy- ethy- chlo-
Well (mg/L (mg/L (mg/L (mg/L ation lene lene ride Ethene Ethane
name Date as Fe) as SO4) as S2-) as Cl) index (μM/L) (μM/L) (μM/L) (μM/L) (μM/L)
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Well 4D 02/12/97 0.27 50 -- 7 -0.15 0.01 0.06 <0.02 -- --
08/21/97* 0.72 2 0.038 3 -- <0.01 <0.01 <0.02 -- --
5/98 -- -- -- -- -- <0.01 <0.01 <0.02 <0.04 <0.03
Well 1D 11/12/96* 0.41 22 -- 91 -0.39 0.42 0.13 0.74 -- --
02/11/97 0.13 52 -- 150 -0.44 <0.01 0.06 0.09 -- --
08/21/97* 0.17 36 0.024 86 0.45 0.11 0.10 0.05 -- --
11/05/97 0.01 34 0.002 66 0.25 0.02 0.36 1.90 3.39 67.18
02/17/98 0.04 72 0.009 45 -- -- -- -- -- --
04/30/98 0.05 50 0.003 47 -- -- -- -- -- --
05/21/98 0.02 50 0.028 77 -- 0.06 0.12 0.08 <0.04 <0.03
Well 3D 11/13/96* 0.06 93 -- 23 -0.16 0.02 1.89 1.17 -- --
02/12/97 <0.01 110 -- 440 0.27 0.02 0.62 0.31 -- --
08/21/97* 0.03 67 1.570 53 0.41 0.01 0.06 <0.02 -- --
11/05/97 0.11 71 2.340 47 0.19 <0.01 0.20 <0.02 <0.93 126.71
02/17/98 0.13 115 0.130 38 -- -- -- -- -- --
04/30/98 0.08 88 0.013 12 -- -- -- -- -- --
05/21/98 0.04 90 0.014 23 -- <0.01 2.37 2.24 <0.04 21.22
Well 2D 02/11/97 0.02 48 -- 26 0.18 6.96 14.34 3.92
08/20/97* 0.01 35 0.028 10 -0.04 1.28 4.82 4.10
11/04/97* 0.01 46 0.011 8 -- 6.70 58.80 12.16 6.10 40.48
02/17/98 0.02 49 0.031 9 -- 4.54 11.04 2.50 <0.07 4.42
04/30/98 0.08 36 0.006 >10 -- -- -- -- -- --
05/21/98 0.02 45 0.019 11 -- 0.88 5.27 1.17 <0.04 <0.03
Well 11D 11/13/96* 0.01 590 -- 9 0.71 0.52 1.76 <0.02 -- --
02/11/97* 0.03 450 -- 6 0.35 0.02 1.46 <0.02 -- --
08/20/97* <0.01 260 3.460 3 0.66 <0.01 0.73 <0.02 -- --
Well 12D 08/20/97* 0.03 100 0.030 8 -0.35 3.04 0.98 <0.02 -- --
11/04/97 0.03 72 0.014 8 -- 8.56 3.88 <0.02 <0.93 <0.87
02/17/98 0.01 75 0.023 37 -- 0.14 0.04 <0.03 <0.07 <0.07
04/30/98 0.06 74 0.012 >10 -- -- -- -- -- --
05/21/98 <0.01 90 0.010 18 -- 1.29 0.78 0.06 <0.04 <0.03
Well 14D 11/13/96* 0.03 65 -- 9 -0.24 2.21 2.39 0.10 -- --
02/11/97* 0.23 63 -- 10 0.16 1.51 3.94 0.44 -- --
11/04/97* 0.01 120 0.015 11 0.36 2.32 5.21 0.93 <0.93 <0.87
Well 15D-A 11/13/96 0.02 130 -- <1 -0.21 <0.02 -- -- -- --
02/12/97 0.13 130 -- 5 -- <0.01 -- -- -- --
Well 15D-C 11/13/96 <0.01 26 -- 6 0.52 -- -- -- -- --
02/12/97 <0.01 26 -- 4 -- -- -- -- -- --
Well 16D-B 08/22/97 <0.01 160 0.034 15 1.33 <0.01 0.05 <0.02 -- --
11/04/97 <0.01 150 0.014 17 -- <0.01 0.03 <0.02 <0.93 4.19
Well 10D-B 08/22/97 0.01 19 0.504 3 0.43 <0.01 0.06 0.09 -- --
11/04/97 <0.01 49 0.124 4 -- 0.07 0.15 0.12 <0.93 <0.87
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