{"data":{"id":"us-va/9vac25-280-50","jurisdiction":"us-va","citation":"9VAC25-280-50","heading":"Ground water standards applicable by physiographic province","body":"CONSTITUENT\n\nCONCENTRATION\n\nCoastal Plain\n\nPiedmont \u0026 Blue Ridge\n\nValley \u0026 Ridge\n\nCumberland Plateau\n\npH\n\n6.5-9\n\n5.5-8.5\n\n6-9\n\n5-8.5\n\nAmmonia Nitrogen\n\n0.025 mg/l\n\n0.025 mg/l\n\n0.025 mg/l\n\n0.025 mg/l\n\nNitrite Nitrogen\n\n0.025 mg/l\n\n0.025 mg/l\n\n0.025 mg/l\n\n0.025 mg/l\n\nNitrate Nitrogen\n\n5 mg/l\n\n5 mg/l\n\n5 mg/l\n\n0.5 mg/l","path":["Title 9. Environment","Agency 25. State Water Control Board","Chapter 280. Ground Water Standards"],"source_url":"https://law.lis.virginia.gov/admincode/title9/agency25/chapter280/section50/","current_through":"2026 Regular Session (effective July 1, 2026)","vintage":"","retrieved_at":"2026-09-14T04:49:15Z","sha256":"1c8d4618a3a4a7b32ea7cf1d67a579ff2ba353749c318f0ee71a47df6ea2ca84","source_id":"us-va-vac","stale":false,"prev":"us-va/9vac25-280-40","next":"us-va/9vac25-280-60"},"notice":"GroundRules: Original legal text. Not legal advice."}