Section 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

Historical Notes

Derived from Volume 20, Issue 09, eff. February 12, 2004.

Statutory Authority

§ 62.1-44.15 of the Code of Virginia.