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Resources

Standard References

9VAC25-875-560. Erosion and sediment control criteria, techniques, and

methods: minimum standards. (2025). Retrieved October 20, 2025, from Virginia.gov website: https://law.lis.virginia.gov/admincode/title9/agency25/chapter875/section560/ 1

Stormwater Runoff Control (Ac.) (570) Conservation Practice Standard | Natural Resources Conservation

Service. (2025). Retrieved from Natural Resources Conservation Service website: https://www.nrcs.usda.gov/resources/guides-and-instructions/stormwater-runoff-control-ac-570-conservation-practice-standard 2

Title 210 -National Engineering Handbook Chapter 14 Water Management (Drainage). (n.d.). Retrieved

from https://directives.nrcs.usda.gov/sites/default/files2/1712930918/31801.pdf 3

Underground Outlet (Ft.) (620) Conservation Practice Standard | Natural Resources

Conservation Service. (2025). Retrieved October 21, 2025, from Natural Resources

Conservation Service website: https://www.nrcs.usda.gov/resources/guides-and-instructions/underground-outlet-ft-620-conservation-practice-standard 4​​

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@2025 by HydroLogic

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