Storm Water

The goal of the Storm Water Program is to reduce or eliminate pollutants in storm water. Storm water discharges are generated by runoff from land and impervious areas such as paved streets, parking lots, and building rooftops, during rainfall and snowmelt events. Storm water discharges often contain pollutants in quantities that could adversely affect water quality.

Highlights of Permit Reissuance of Construction General Permit (2016 CGP) - NEW

On December 29, 2015 DEC reissued the Construction General Permit for Storm Water Discharges for Large and Small Construction Activities (2016 CGP, AKR100000).

The 2016 CGP will become effective on February 1, 2016.

Existing dischargers of the 2011 CGP should submit a new Notice of Intent (NOI) or Notice of Termination (NOT) within 90 days of the effective date of the 2016 CGP (i.e., no later than April 30, 2016). To continue coverage, a permittee must:

  • Continue to comply with the terms and conditions of the 2011 CGP until the permittee has been granted authoization under the 2016 CGP or submits a NOT;
  • Update the existing Storm Water Pollution Prevention Plan (SWPPP) as necessary to comply with the requirements of Parts 3.0, 4.0, and 5.0 of the 2016 CGP; and
  • Submit a complete and accurate NOI within 90 days of the effective date of the 2016 CGP (i.e., no later than May 1, 2016).
  • If a permittee is eligible to submit a NOT (e.g., construction is finished and final stabilization has been achieved) before the 90th day, a new NOI is not required to be submitted provided a NOT is submitted within 90 calendar days after the effective date of the 2016 CGP permit.

The 2016 CGP authorizes storm water discharges from large and small construction-related activities that result in a total land disturbance of equal to or greater than one acre and where those discharges enter waters of the U.S. (directly or through a storm water conveyance system) or a municipal separate storm sewer system (MS4) leading to waters of the U.S. subject to the conditions set forth in the permit. The permit also authorizes storm water discharges from certain construction support activities and some non-storm water discharges commonly associated with construction sites.

The goal of the 2016 CGP is to minimize erosion and reduce or eliminate the discharge of pollutants, such as sediment carried in storm water runoff from construction sites through implementation of appropriate control measures. Polluted storm water runoff can adversely affect fish, animals, plants, and humans. In order to ensure protection of water quality and human health, the permit describes control measures that must be used to manage storm water runoff during construction activities. The 2016 CGP will replace the 2011 CGP that became effective July 1, 2011 and will expire on January 31, 2016.

Highlights of Permit Reissuance (2015 MSGP) - NEW

On February 19, 2015 DEC issued the 2015 Multi-Sector General Permit for Storm Water Discharges Associated with Industrial Activity (2015 MSGP, AKR060000).

The permit became effective on April 1, 2015.

Existing dischargers of the 2008 MSGP or new dischargers seeking authorization should submit a new Notice of Intent (2015 MSGP NOI) and Storm Water Pollution Prevention Plan (SWPPP) no later than 120 days after the effective date of the permit (April 1 - July 30, 2015).

See Table 2-1 in the 2015 MSGP Permit for NOI Submission deadlines and discharge Authorization Dates. DEC will begin accepting 2015 MSGP NOI's on April 1, 2015.

Expiration of the 2008 MSGP

With the recent issuance of the 2015 MSGP, existing dischargers or new dischargers seeking authorization should submit a new Notice of Intent (NOI) and Storm Water Pollution Prevention Plan (SWPPP) no later than 120 days after the effective date of the 2015 MSGP permit.

See Table 2-1 in the 2015 MSGP Permit for NOI Submission deadlines and discharge Authorization Dates.

Highlights of Permit Reissuance for the State Dewatering and Contained Water Permits

The state Contained Water permit (2009DB0004) expired on March 18, 2014 and the Excavation Dewatering permit (2009DB0003) expired on March 23, 2014.

Highlights - 2011 Construction General Permit

Construction projects starting after July 1st, 2011 must use the 2011 Alaska Construction General Permit (ACGP). The permit is provided below. DEC has revised the SWPPP Template and SWPPP Checklist for the new permit. The most frequently asked questions are answered in the following FAQ handout.

If you are expecting to find an ADEC NOI on the Water Permit Search and it is not displaying, please send your inquiry to DEC.Water.OPAHelp@Alaska.Gov

New to the eNOI System is the CGP eNOI Modification submittal. This submittal allows operators to electronically file the CGP Notice of Intent Modification form. For additional information, see the "Step-by-Step" guidance document.


Contacts

For more information, please contact:
Jim Rypkema, Storm Water and Wetlands Program Manager
Division of Water – Alaska Department of Environmental Conservation
555 Cordova Street
Anchorage, AK 99501
Office: 907-334-2288 | Fax: 907-269-3487
Email: Jim.Rypkema@alaska.gov