U. S. Geological Survey - Water Resources - Michigan District

Water Resources of Michigan

Table 1D of Ground-Water Quality Atlas of Oakland County, Michigan

US Geological Survey Water-Resources Investigation 00-4120

By: Stephen Scranton Aichele

Seasonal comparison of selected water-quality parameters for samples from selected wells in Oakland County, Michigan.

[mg/L, milligrams per liter; µg/L, micrograms per liter; µS/cm, microsiemens per centimeter at 25 degrees Celsius; 0C, degrees Celsius]

Station name OAK 3 OAK 4 OAK 9 OAK 12 OAK 35
Station number 425050083310901 425219083264301 425055083374901 425131083363001 424519083081101
Sample date 06/04/1998 12/16/1998 06/04/1998 12/15/1998 06/09/1998 12/03/1998 06/26/1998 12/03/1998 07/08/1998 12/15/1998
Sample time 1225 950 905 1545 1130 1500 1146 1700 1055 1300
pH, Laboratory (Standard Units) 7.3 7.6 7.5 7.7 7.6 7.6 7.4 7.4 7.6 7.6
Nitrogen, Ammonia (mg/L as N) 0.11 0.11 0.3 0.25 0.2 0.18 0.16 0.18 0.29 0.26
Nitrogen, Nitrite (mg/L as N) 0.02 0.02 0.02 0.02 0.01 <.01 <.01 <.01 <.01 0.02
Nitrogen, Ammonia + Organic (mg/L as N) 0.12 <.1 0.27 0.31 0.16 0.28 0.18 0.24 0.31 0.34
Nitrite + Nitrate, Dissolved (mg/L as N) 0.05 <.05 0.06 <.05 <.05 <.05 <.05 <.05 <.05 <.05
Phosphorus, Dissolved (mg/L as P) <.01 <.05 <.01 <.05 <.01 <.05 <.01 <.05 <.01 <.05
Phosphorus, Ortho (mg/L as P) 0.01 0.01 0.01 0.01 0.01 0.01 <.01 <.01 0.02 0.02
Calcium, Dissolved (mg/L as Ca) 63.9 63.1 48.5 50.5 57 57.4 66.1 66.4 59.9 62
Magnesium, Dissolved
(mg/L as Mg)		 23.7 22.6 24.2 24.3 26.7 24.6 36.6 33.6 25.6 25.1
Sodium, Dissolved (mg/L as Na) 6.2 5.9 17.7 15.9 16.5 15 13 12 26.6 23.8
Flouride, Dissolved
(mg/L as F) 		0.3 0.3 0.8 0.8 0.7 0.6 0.9 0.9 0.8 0.8
Silica, Dissolved
(mg/L as SiO2) 		16.7 16.2 13.5 14 17.6 17.7 19.4 20.1 16.7 16.9
Arsenic, Total
(µg/L as As) 		27 27 46 48 39 38 56 58 12 13
Iron, Dissolved
(µg/L as Fe) 		459 577 581 974 746 745 499 504 1245 1201
Manganese Dissolved
(µg/L as Fe)		 23 20 38 42 17 17 18 15 21 20
Residue, Dissolved, 180oC (mg/L) 294 294 278 270 307 305 350 290 331 343
Bromide, Dissolved
(mg/L as Br) 		0.03 0.12 0.03 0.15 0.03 0.05 0.05 0.04 0.07 0.21
Specific Conductance (µS/cm) 497 509 493 484 513 525 611 609 610 604
Acid Neutralizing Capacity, pH 4.5 (mg/L as CaCO3) 268 234 263 255 280 278 332 330 276 276

Citation:

Aichele, S.S., 2000, Ground-Water Quality Atlas of Oakland County, Michigan US Geological Survey Water-Resources Investigations Report 00-4120

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