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Virginia Administrative Code
Title 9. Environment
Agency 25. State Water Control Board
Chapter 280. Ground Water Standards
11/24/2024

9VAC25-280-50. Ground water standards applicable by physiographic province.

CONSTITUENT

CONCENTRATION

Coastal Plain

Piedmont & Blue Ridge

Valley & Ridge

Cumberland Plateau

pH

6.5-9

5.5-8.5

6-9

5-8.5

Ammonia Nitrogen

0.025 mg/l

0.025 mg/l

0.025 mg/l

0.025 mg/l

Nitrite Nitrogen

0.025 mg/l

0.025 mg/l

0.025 mg/l

0.025 mg/l

Nitrate Nitrogen

5 mg/l

5 mg/l

5 mg/l

0.5 mg/l

Statutory Authority

§ 62.1-44.15 of the Code of Virginia.

Historical Notes

Derived from Virginia Register Volume 20, Issue 9, eff. February 12, 2004.

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