Table 4. Results of analyses for selected inorganic chemical constituents in samples from Bonifas Creek and wastewater lagoon (LVD lagoon) at Watersmeet, Mich.
[mm of Hg, millimeters of mercury; mg/L, milligrams per liter]
Sampling information and water-quality property or constituent | LVD lagoon | Bonifas Creek below Bass Lake (station 4032915) and at Watersmeet (station 4032919) | |||||||
---|---|---|---|---|---|---|---|---|---|
Below Bass Lake | At Watersmeet | Below Bass Lake | At Watersmeet | Below Bass Lake | At Watersmeet | Below Bass Lake | At Watersmeet | ||
Date measured | June 5, 1998 | August 27, 1997 | August 27, 1997 | September 25, 1997 | September 24, 1997 | December 18, 1997 | December 17, 1997 | June 17, 1998 | June 16, 1998 |
Time measured | 1500 | 1020 | 1345 | 900 | 1500 | 1000 | 1300 | 1130 | 1345 |
Air Pressure (mm of Hg) | -- | 721 | 721 | -- | -- | 713 | 718 | 722 | 714 |
Water temperature (degrees Celsius) | -- | 17.5 | 18 | 13.5 | 14 | 1 | .8 | 21 | 21 |
Streamflow, instantaneous (ft3/s) | -- | .5 | -- | 1.6 | 2.5 | 1.6 | 4.6 | 2.3 | -- |
Nitrogen, ammonia (mg/L as N) | 4.47 | < .015 | < .015 | < .015 | < .015 | < .02 | < .02 | .08 | .057 |
Nitrogen, nitrate (mg/L as N) | .03 | < .01 | < .01 | < .01 | < .01 | < .01 | < .01 | < .01 | < .01 |
Ammonia + organic N (mg/L as N) | 5.6 | .3 | .3 | .4 | .5 | .5 | .4 | .5 | .7 |
Nitrate + nitrite, dissolved, (mg/L as N) | < .05 | < .05 | .05 | < .05 | < .05 | < .05 | < .05 | < .05 | < .05 |
Phosphorus, total (mg/L as P) | 1.56 | < .01 | .03 | < .01 | .049 | < .01 | < .01 | .01 | .02 |
Phosphorus, dissolved (mg/L as P) | 1.45 | < .01 | < .01 | < .01 | < .01 | < .01 | < .01 | < .01 | < .01 |
Phosphorus, ortho (mg/L as P) | 1.16 | < .01 | < .01 | < .01 | < .01 | < .01 | < .01 | < .01 | .01 |
Alkalinity, dissolved (mg/L as CaCO3) | -- | 31 | -- | 24 | 30 | 25 | 30 | 25 | 30 |
Calcium dissolved (mg/L as Ca) | 23.7 | 7.8 | 11.6 | 7.6 | 9.8 | 8.1 | 10.3 | 8.0 | 10.4 |
Magnesium dissolved (mg/L as Mg) | 6.8 | 2.37 | 3.24 | 2.39 | 2.82 | 2.63 | 3.12 | 2.41 | 2.87 |
Sodium dissolved (mg/L as Na) | 46.4 | 3.3 | 2.6 | 3.4 | 2.6 | 3.7 | 3.5 | 3.6 | 3.2 |
Potassium, dissolved (mg/L as K) | 14.3 | .7 | .8 | .7 | .5 | .7 | .7 | .7 | .4 |
Chloride dissolved (mg/L as Cl) | 69.1 | 5.7 | 3.9 | 6.0 | 4.0 | 7.0 | 5.9 | 6.3 | 5.6 |
Sulfate dissolved (mg/L as SO4) | 02.6 | 1.3 | .8 | 1.7 | 1.1 | 2.1 | 2.1 | 2.0 | 1.2 |
Fluoride dissolved (mg/L as F) | < .1 | < .1 | < .1 | < .1 | < .1 | < .1 | < .1 | < .1 | < .1 |
Silica dissolved (mg/L as SiO2) | 7.2 | 1.0 | 6.0 | .9 | 6.6 | 1.3 | 5.5 | .6 | 2.8 |
Residue total (mg/L) | -- | 2 | 12 | <1 | 8 | 11 | 4 | 3 | 1 |
Residue DIS 180C (mg/L) | 292 | 58 | 78 | 58 | 77 | 71 | 81 | 54 | 78 |
ANC, TIT. 4.5, L (mg/L as CaCO3) | 112 | 27 | 41 | 26 | 31 | 28 | 36 | 26 | 32 |