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
Rain Inspection TriggerWithin 24 hours of any precipitation or snowmelt event that results in a discharge from the site (no fixed inch threshold — discharge-based trigger)
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.
Inspector CertificationsNo state-specific cert required; EPA CGP requires 'qualified personnel' knowledgeable in E&SC; CPESC, CESSWI, CISEC accepted
Post-Construction RequiredYes
Turbidity StandardNo numeric NTU limit in the CGP; narrative water quality standard applies