SW6160401_Supplemental_Infiltration Basin Part III_20201002

Permit No
(to be provided by DWQ)
III. REQUIRED ITEMS CHECKLIST
Please indicate the page or plan sheet numbers where the supporting documentation can be found. An incomplete submittal package will
result in a request for additional information. This will delay final review and approval of the project. Initial in the space provided to
indicate the following design requirements have been met. If the applicant has designated an agent, the agent may initial below. If a
requirement has not been met, attach justification.
Pagel Plan
Initials Sheet No.
NTJ Ex. Permit 1. Plans (1" 50' or larger) of the entire site showing:
Design at ultimate build -out,
Off -site drainage (if applicable),
Delineated drainage basins (include Rational C coefficient per basin),
Basin dimensions,
Pretreatment system,
High flow bypass system,
Maintenance access,
Proposed drainage easement and public right of way (ROW),
Overflow device, and
Boundaries of drainage easement.
NTJ Ex. Permit 2. Partial plan (1" = 30' or larger) and details for the infiltration basin showing:
Bypass structure,
Maintenance access,
Basin bottom dimensions,
Basin cross-section with benchmark for sediment cleanout,
Flow distribution detail for inflow,
-Vegetated filter, and
- Pretreatment device.
NTJ Ex. Permit 3. Section view of the infiltration basin (1" = 20' or larger) showing:
Pretreatment and treatment areas, and
Inlet and outlet structures.
NTJ Ex. Permit 4. A table of elevations, areas, incremental volumes & accumulated volumes to verify the volume provided.
NTJ Ex. Permit 5. A soils report that is based upon an actual field investigation, soil borings, and infiltration tests. The
results of the soils report must be verified in the field by DWQ, by completing & submitting the soils
investigation request form. County soil maps are not an acceptable source of soils information.
NTJ CG501 6. A construction sequence that shows how the infitlration basin will be protected from sediment until the
entire drainage area is stabilized.
NTJ Narrative 7. The supporting calculations.
NTJ Narrative 8. A copy of the signed and notarized operation and maintenance (0&M) agreement.
N/A N/A 9. A copy of the deed restrictions (if required).
Form SW401-Infiltration Basin-Rev.4 Page 1 of 1 Part III. Required Items Checklist, Page 1 of 1