SW

Stormwater Directory

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Compare state-level permit requirements side-by-side (up to 4 states)

AK(3 more)

Rows with an amber indicator differ across selected states.

Field
AK
Alaska
NPDES ProgramState-Delegated
Permitting AgencyAlaska Department of Environmental Conservation (DEC)
Permit NameAPDES Construction General Permit (CGP) — Permit No. AKR10A000 (active permit reissued 2021)
Construction Threshold≥ 1 acre of land disturbance, or < 1 acre if part of a larger common plan of development or sale
NOI Lead TimeNOI must be submitted at least 30 days before the planned start of construction activity; DEC issues a written authorization letter before work may begin
Application MethodOnline submission via the Alaska DEC APDES online permitting portal; paper NOI forms also accepted by mail
Permit Fee$50 NOI processing fee for sites disturbing < 5 acres; $100 for sites disturbing ≥ 5 acres
SWPPP RequiredYes
PE Certification RequiredNo
SWPPP Template AvailableYes
Inspection FrequencyAt least every 14 calendar days and within 24 hours of a precipitation or snowmelt event that results in a discharge from the site; during frozen ground conditions, inspections may be reduced to monthly if the site is fully stabilized
Inspector QualificationA knowledgeable person familiar with the SWPPP must conduct inspections. Alaska does not require a state-specific inspector certification, but the person must understand construction stormwater BMPs. Many operators voluntarily use EPA's Developing Your SWPPP training.
Post-Construction RequiredYes
Turbidity StandardNo numeric NTU limit in the CGP; narrative water quality standard applies