Guidance Document Information
| Title |
Guidance Document on New Probable Maximum Precipitation (PMP) Implementation |
| Document ID |
DCR-VSWCB-037 |
| Summary |
This guidance document specifies the decision process to be utilized by impounding structure owners and their engineers in determining when a dam break inundation zone map, emergency action/ emergency preparedness plan, and hazard potential classification need to be updated to reflect Virginia’s new Probable Maximum Precipitation (PMP) values that became effective on March 23, 2016. |
| Effective Date |
3/29/2018 |
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Posted On 4/11/2018
Document on Town Hall
|
| Explanation or Citations |
Chapters 475 and 489 of the 2014 Virginia Acts of Assembly; 4VAC50-20-50, titled Performance standards required for impounding structures, incorporated by reference the Probable Maximum Study for Virginia (and associated PMP Evaluation Tool and Database) (November 2015) |
This document applies to all chapters for the following boards
| [4 VAC 50] |
Virginia Soil and Water Conservation Board |
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