Dairy
| Item | Generally Considered Safe Upper Limit Concentrations in Water for Dairy Cows |
|---|---|
| Alkalinity (as CaCO3) | 500 |
| Aluminum | 0.5 |
| Antimony | 5 |
| Arsenic | 0.05 |
| Barium | 300 |
| Beryllium | 0.1 |
| Boron | 5 |
| Cadmium | 0.005 |
| Calcium | 150 |
| Chromium | 0.1 |
| Cobalt | 1 |
| Copper | 0.6 |
| Flouride | 2 (1 if present in feed) |
| Hardness (CaCO3 equivalents) | No limit established |
| Iron | 0.3 (not a toxicity guideline) |
| Lead | 0.015 |
| Magnesium | 100 |
| Manganese | 0.05 (not a toxicity guideline) |
| Mercury | 0.003 |
| Molybdenum | 0.5 |
| Nickel | 0.25 |
| PH (pH units) | 6.5-8.5 |
| Selenium | 0.05 |
| Sulphate | 500 |
| Sulphide (H2S) | <1 (taste and smell advisory, not toxic guideline) |
| Tin | 5 |
| Titanium | 5 |
| Uranium | 0.2 |
| Vanadium | 0.1 |
| Zinc | 5 |
http://www.omafra.gov.on.ca/english/livestock/dairy/facts/03-085.htm
| Nitrate (NO3) (ppm) | Nitrate-Nitrogen (NO3-N) (ppm) | Recommendation |
|---|---|---|
| 0-44 | 0-10 | Safe for dairy cattle |
| 45-132 | 10-20 | Safe with balanced diets, low nitrate feeds |
| 133-220 | 20-40 | Potentially harmful over long-term |
| 221-660 | 40-100 | Cattle at risk, potential death |
| >660 | >100 | Unsafe for cattle |
Swine
| Item | Recommended Maximum Limit (Mg/L or PPM) |
|---|---|
| Total Dissolved Solids (TDS) | 3000 |
| Salinity | 3000 |
| Calcium | 1000 |
| Sulfate | 1000 |
| Magnesium | 400 |
| Nitrate + Nitrite (N) | 100 |
| Nitrite (N) | 10 |
| Iron | No guideline established |
| Fluoride | 2 (1 if present in feed) |
| Blue-green algae | avoid heavy growths of algae |