GUIDELINES FOR INTERPRETATION OF WATER ANALYSIS |
|||||
|
Range |
|||||
|
Constituent |
Very Low |
Low |
Medium |
High |
Very High |
|
Carbonate, mg/L |
0 – 2 |
2 – 5 |
5 – 10 |
10 – 20 |
20+ |
|
Bicarbonate, mg/L |
0 – 50 |
50 – 100 |
100 – 200 |
200 – 400 |
400+ |
|
Calcium, mg/L |
0 – 25 |
25 – 50 |
50 – 75 |
75 – 100 |
100+ |
|
Magnesium, mg/L |
0 – 10 |
10 – 20 |
20 – 30 |
30 – 40 |
40+ |
|
Potassium, mg/L |
0 – 10 |
10 – 20 |
20 – 30 |
30 – 40 |
40+ |
|
Sodium, mg/L |
0 – 10 |
10 – 25 |
25 – 50 |
50 – 75 |
75+ |
|
Nitrate-N, mg/L |
0 – 1 |
1 – 5 |
5 – 8 |
8 – 10 |
10+ |
|
Sulfate-S, mg/L |
0 – 10 |
10 – 20 |
20 – 40 |
40 – 80 |
80+ |
|
Phosphate-P, mg/L |
0 – 0.10 |
0.10 – 0.20 |
0.20 – 0.40 |
0.40 – 0.80 |
0.80+ |
|
Zinc, mg/L |
0 – 0.10 |
0.10 – 0.20 |
0.20 – 0.50 |
0.50 – 5.00 |
5.00+ |
|
Copper, mg/L |
0 – 0.05 |
0.05 – 0.10 |
0.10 – 0.20 |
0.20 – 0.30 |
0.30+ |
|
Manganese, mg/L |
0 – 0.01 |
0.01 – 0.02 |
0.02 – 0.03 |
0.03 – 0.05 |
0.05+ |
|
Iron, mg/L |
0 – 0.05 |
0.05 – 0.10 |
0.10 – 0.20 |
0.20 – 0.30 |
0.30+ |
|
Boron, mg/L |
0 – 0.05 |
0.05 – 0.10 |
0.10 – 0.20 |
0.20 – 1.00 |
1.00+ |
|
Chloride, mg/L |
0 – 10 |
10 – 25 |
25 – 50 |
50 – 250 |
250+ |
|
Total Dissolved Solids, mg/L |
0 – 150 |
150 – 300 |
300 – 500 |
500 – 700 |
700+ |
|
pH |
0 – 6.5 |
6.5 – 7.0 |
7.0 – 8.0 |
8.0 – 8.5 |
8.5+ |
|
Conductivity, mg/L |
0 – 0.23 |
0.23 – 0.46 |
0.46 – 0.78 |
0.78 – 1.09 |
1.09+ |
|
Fluoride, mg/L |
0 – 0.30 |
0.30 – 0.70 |
0.70 – 1.20 |
1.20 – 2.00 |
2.00+ |
|
Hardness, mg/L |
0 – 60 |
60 – 120 |
120 – 180 |
180 – 240 |
240+ |
|
Hardness, grains/gallon |
0 – 3.5 |
3.5 – 7.0 |
7.0 – 10.5 |
10.5 – 14.0 |
14.0+ |
|
Salinity Hazard |
0 – 0.20 |
0.20 – 0.75 |
0.75 – 1.50 |
1.50 – 3.00 |
3.00+ |
|
Sodium Hazard |
Refer to back of water analysis report form. |
||||
These guidelines have been categorized into very low, low, medium, high, and very high by American Agricultural Laboratory. The ranges are based on analysis performed by the laboratory.