Fairfax County

Public Facilities Manual (PFM)

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Compare each cited field to the official PDF before relying on it. What this means

Large PFM export; Chapter 6 storm drainage confirmed. Pull numeric WQ depth from 6-0400 on review. Pipeline excerpt repair removed 2 unlocated citation(s).

Fields not found in document: document_metadata.adoption_or_effective_date, design_criteria.required_hydrologic_hydraulic_software, document_metadata.state_code, document_metadata.version_or_edition

Other manuals in Virginia: Arlington County, City of Alexandria, City of Charlottesville, City of Chesapeake, City of Norfolk, City of Richmond, City of Roanoke, Virginia Department of Environmental Quality (DEQ), Virginia Department of Transportation (VDOT)

Document Metadata

Jurisdiction level

County

“Fairfax County”
Cover

State

Not found in document

No evidence cited

Version / edition

Not found in document

No evidence cited

Adoption / effective date

Not found in document

No evidence cited

Last revised date

2020-10-20

“PFM. Similarly, in 1978, the Board adopted a Zoning Ordinance which made specific reference to the requirements in this PFM. 1-0100.2 It is the County’s desire to encourage qualified professionals to seek new and better solutions to complicated technical problems. However, i”
p. 5

Relationship to state manual

independent

“Fairfax County Public Facilities Manual”
Title

Design Criteria

Design storm return periods (years)

10-year, 100-year

“100-year floodplain limits / 10-Year Tree Canopy”
Chapter 6 / related

Water quality volume method

Chapter 6 Storm Drainage includes Policy on Detention of Stormwaters (6-0300), Stormwater Runoff Quality Control Criteria (6-0400), and Retention/Detention/BMP facilities (6-1300) including bioretention/rain gardens, pervious pavement, and trenches.

“6-0400 STORMWATER RUNOFF QUALITY CONTROL CRITERIA”
Chapter 6

Peak flow calculation method(s)

Chapter 6 Storm Drainage — adequate drainage policy, Detention of stormwaters policy, Storm sewer / culvert / channel design, VDOT Drainage Manual references where applicable

“6-0300 POLICY ON DETENTION OF STORMWATERS”
Chapter 6

Hydrologic/hydraulic software

Not found in document

No evidence cited

Approved BMP categories

Detention ponds, Extended detention, Retention facilities, Bioretention / rain gardens, Pervious pavement, Low impact development practices

“bioretention basins or rain gardens / Retention, Detention, and Best Management Practices”
6-1300