MIL-HDBK-1005/7A
Table 5 (Continued)
Classification of Raw Water Sources for Domestic Uses
Hydrogen Ion (pH)
6.5-8.5
6.0-9.0
<6.0
>9.0
Iron (Fe)
0-0.3
0.3-1.0
Over 1.0
Lead (Pb)
0
0-0.01
Over 0.01
Manganese (Mn)
0-0.05
0.05-0.5
Over 0.5
Nitrates (NO 3)
0-10
10-25
Over 25
Nitrites (NO 2)
0-1.0
1.0-5.0
Over 5.0
Phenols
0
0-0.0001
Over
0.0001
Phosphates (PO 4)
0-10
10-50
Over 50
Selenium (Se)
0
0-0.01
Over 0.01
Silver (Ag)
0
0-0.02
Over 0.02
Sulfate (SO4)
0-125
125-250
Over 250
100-300
300-600
Over 600
Total Dissolved Solids
(TDS)
Total Hardness (CaCO 3)
50-150
150-500
Over 500
Zinc (Zn)
0-1.0
1.0-5.0
Over 5.0
0-0.2
0.2-5.0
Over 5.0
Coliforms, MPN per 100 ml
0-100
100-5,000
Over 5,000
(Monthly Average)
Less than
Less than
5 percent
20 percent
of samples
of samples
over 100
over 5,000
(1) With the exception of pH, all values are in terms of ppm.
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