Stormwater Atlas

City of Fargo

Policy on Storm Water Discharge and Treatment Requirements (Storm Sewer Manual)

CityNorth DakotamediumNeeds reviewCitations verified
Open source PDF ↗Official agency page ↗

This extraction is flagged for quality review.

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

15-page policy/manual; compact but covers quantity + WQ appendices.

Fields not found in document: design_criteria.required_hydrologic_hydraulic_software
Other manuals in North Dakota: City of Bismarck, North Dakota

Document Metadata

Jurisdiction level
City

No evidence cited

State
North Dakota

No evidence cited

Version / edition
2019-09-09

“Storm Water Discharge and Treatment Policy 2019”

Header

Adoption / effective date
2019-09-09

No evidence cited

Last revised date
2019-09-09

No evidence cited

Relationship to state manual
independent

“Storm Water Discharge and Treatment Policy 2019 10 features. Flow-Through Treatment devices such as “Defenders ™” shall provide as a minimum 80 percent removal of sediment with a particle size distribution equivalent to the standard OK- 110 at a feed concentration of 300 mg/L”

p. 10

Design Criteria

Design storm return periods (years)
2-year, 10-year, 100-year

“post-development 2, 10, and 100-year storm events as identified under the most current NOAA Atlas 14”

Policy / Appendix A

Water quality volume method
Sites >3 acres: max discharge 1 cfs/acre; 1–3 acre sites per table. Post-development 2-, 10-, and 100-year peaks per NOAA Atlas 14 for Fargo. Water quality (Appendix C): wet detention Vwq = 1800 cu-ft per impervious acre; extended detention Vwqed = 1800 cu-ft; infiltration Vwq = 0.5 inches from impervious; manufactured devices treat first 0.5 inches from impervious.

“Wet Detention Ponds Water Quality Volume (Vwq) = 1800 cu-ft per impervious acre ... Infiltration Water Quality Volume (Vwq) = 0.5 inches from impervious area”

Appendix C

Peak flow calculation method(s)
NOAA Atlas 14 (Fargo) for 2-/10-/100-year storms, Allowable release rate tables (Appendix B), Detention/retention pond design (Appendix D)

No evidence cited

Hydrologic/hydraulic software
Not found in document

No evidence cited

Approved BMP categories
Wet detention ponds, Extended detention, Infiltration, Manufactured treatment devices, Regional or on-site detention/retention

No evidence cited