Virginia Administrative Code
Title 9 - ENVIRONMENT
Agency 25 - STATE WATER CONTROL BOARD
Chapter 280 - GROUND WATER STANDARDS
Section 9VAC25-280-70 - Ground water criteria

Universal Citation: 9 VA Admin Code 25-280-70
Current through Register Vol. 41, No. 3, September 23, 2024

CONSTITUENT (mg/l) GROUND WATER CRITERIA BY PHYSIOGRAPHIC PROVINCE***
Coastal Plain Piedmont & Blue Ridge Valley & Ridge Cumberland Plateau
Alkalinity 30-500 10-200 30-500 30-200
Total Diss. Solids 1000 250 500 500
Chloride 50* 25 25 25
Sulfate 50 25 100 150
Total Organic Carbon 10 10 10 10
Color units 15 15 15 15
Iron 0.3 0.3 0.3 0.01-10
Manganese 0.05 0.05 0.05 0.01-0.5
Sodium 100* 25 25 100
Fluoride 1.4** 1.4 1.4 1.4
Hardness 120 120 300 180

*It is recognized that naturally occurring concentrations will exceed this limit in the eastern part of the Coastal Plain, especially toward the shoreline and with increased depth.

**Except within the cretaceous aquifer: concentration up to 5 mg/l and higher.

***See Figure 1 for delineation of physiographic provinces.

Figure 1

View Image

Statutory Authority

§ 62.1-44.15 of the Code of Virginia.

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