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Juneau State Office Mailing Address Update

All mail sent to the DEC office in Juneau through the U.S. Postal Service must be addressed to P.O. Box 111800. Beginning October 1, all mail addressed to our Willoughby Avenue address will not be delivered and will be returned to sender by the Post Office. This change only impacts incoming mail to the Juneau office.

North Pole Piped Water Expansion

Updated: March 22, 2018


In 2009, sulfolane was detected in drinking water wells near the North Pole Refinery, about 15 miles east of Fairbanks. Under DEC oversight, Flint Hills Resources Alaska (FHRA), owner of the refinery, responded quickly by providing affected residents and businesses with alternative drinking water and initiating an extensive characterization effort. The sulfolane groundwater plume is currently approximately 2 miles wide, 3.5 miles long and over 300 feet deep, and continuing to migrate to the north-northwest.

FHRA and the State of Alaska announced on February 7th, 2017, that they will be working with the City of North Pole to significantly expand their piped public water system to provide sulfolane-free drinking water to residents impacted by the sulfolane groundwater plume. On February 25th 2017, DEC, FHRA and the City of North Pole held a Community Open House at the North Pole Plaza. Attendees from the area talked with representatives regarding specifics of the project. On February 24th 2018, the City of North Pole, FHRA, and State of Alaska held another Community Open House at the North Pole Plaza to provide updated information and another opportunity for discussion about the project. Also there were representatives of Stantec, Inc., the water expansion design consultant, and Exclusive Paving, the contractor to construct the main water lines.

Current Events - Construction Begins Spring 2018

Stantec, an international engineering firm with a local office in Fairbanks, was contracted to design the piped water system expansion. The design is complete, and Exclusive Paving has been contracted to construct the main water lines. Surveying and land clearing began in February 2018, and pipe installation is scheduled to begin along the City’s northern boundary in March 2018.

Construction of the main water lines is scheduled to occur in two phases in 2018 and 2019. The 2018 schedule calls for the following:

  • Installing water mains in the area west of the city and south of the Richardson Highway;
  • Installing water mains just north of the Richardson Highway;
  • Constructing a pump house on Peridot Street; and
  • Construction upgrades at one North Pole Utility.

These areas are identified as Zones 1 and 2 on the map of the area to be covered by the public water system (PDF). Water main lines not installed in 2018 (Zones 3 and 4) will be completed in 2019. The city is developing the specifications that will allow individual properties to be connected to their new main water lines. Individual property water hookups are scheduled to begin in 2019 after receiving State regulatory approval. Property owners will be notified when they are eligible to connect.

Exclusive Paving, the construction contractor, will notify local residents and businesses prior to beginning construction in neighborhoods. Updated project information is available at the following locations:

With expansion of the piped water system, the alternative water supply (AWS) program is being phased out. Alternative water will continue to be provided to properties with sulfolane detections and properties potentially in the migration path of the sulfolane plume until the expanded piped water system is available for connection. For properties with an AWS, FHR will work with them to transition to the public water system as it becomes available.

Continued Oversight

DEC will continue regulatory oversight of contamination at the former North Pole Refinery. The piped water system provides the most comprehensive means to eliminate exposure to sulfolane in drinking water while research continues to address knowledge gaps regarding sulfolane toxicity.

Groundwater monitoring of the sulfolane plume will continue during and after construction of the piped water expansion. This monitoring will focus on the plume boundaries to track the sulfolane plume expansion and include monitoring of buffer zone properties for protection from potential exposure to sulfolane in drinking water. In the event the sulfolane plume migrates beyond the expanded service area, provisions are in place to supply clean alternative water to additional impacted properties if sulfolane in a private drinking water well exceeds a protective level, currently set at the U.S. Environmental Protection Agency’s Regional Screening Level of 20 parts per billion.

Area of Expanded Public Water

The design phase of the North Pole piped water expansion project began shortly after the February 2017 agreement. The Stantec engineers worked with representatives from FHRA, the State, and the City of North Pole, to prepare the design documents for the project. The design was completed in October and received engineering review by the DEC Drinking Water Program. The City of North Pole will be the contract manager for the construction phase, with construction slated to begin in Spring 2018.

Milestones from the design phase are listed below.

  • An in-depth property review was conducted by the design team to finalize the number of service connections, currently estimated to be 706. The boundaries of the service area have not changed since the February 2017 agreement and include all properties identified as eligible at that time. The expansion area includes properties impacted by the sulfolane plume, both within the City of North Pole and outside the city limits, including the following subdivisions: Garden, Riddle Estates, Poodle, Pine Stream, Steelhead and Sorores.
  • The project will include approximately 35 miles of new pipe. Most of the new pipe will be constructed of high-density polyethylene (HDPE).
  • Land has been purchased for an additional water reservoir and pump station along Badger Road.
  • Stantec is working with a subcontractor, R&M Consultants, on right-of-way acquisition throughout the project area. Most of the easements necessary for new piping trenching already exist; however, there are a number of new easements to be acquired. This has been an ongoing process since summer 2017. There are also many private properties with existing easements the project intends to utilize. If you have questions about easements across your property, please see the Contacts page.

Piped Water Connections and Costs

As outlined in the February 2017 agreement between the State of Alaska, FHRA, and the City of North Pole, the public water expansion project will not exceed $100 million. The agreement also includes a $1 million Operations Fund to the City of North Pole to fund the initial operation and maintenance of the finished pipeline system. Interim allocation for funding the project is split, with FHRA paying 80% and the State of Alaska paying 20%. This interim allocation may change pending continued litigation against Williams, the former refinery owner.

Costs of installing service lines are covered in the February 2017 agreement. Property owners identified as eligible in the agreement will be offered connection to the water system free of charge. In addition, they can receive a $2,000 credit on their utility bills and payment of the $75 deposit fee if they connect. According to the City of North Pole, this credit should cover an average residential utility water bill for two to three years depending upon usage. Alternative drinking water will continue to be provided until the piped water extension is available for connection.

Ensuring Clean Water - DEC's Drinking Water Program

DEC's Drinking Water Program requires public water systems to be in compliance with state and federal drinking water regulations and will be the regulatory entity to review and approve the design of this piped water expansion project. The City of North Pole's public water system is regulated by the State's Drinking Water Program.

There has never been a detection of sulfolane in the City’s treated drinking water. In 2010 a trace amount of sulfolane was detected in samples from the raw water entering the treatment system. The city’s treatment system removed the trace amount before the water entered the distribution system.

As a precautionary measure, FHRA constructed two new public drinking water wells for the City of North Pole outside of the contaminant plume. DEC issued operational approval in December 2010; the currently used wells began operating in January 2011.

Samples taken from the new wells have shown levels of all regulated contaminants to be below allowable maximum levels. The City of North Pole follows a prescribed testing schedule for sulfolane, in addition to other analytes, as required by DEC. The new wells have never had a detection of sulfolane in raw or treated water.

For more information contact Cindy Christian, Program Manager Field Operations, Drinking Water Program 907-451-2138,


City of North Pole (owner of the public water system to serve the impacted area)

Exclusive Paving (contractor to construct the main water lines)

  • Construction Contractor-Water Main Lines
  • Rebekah Matar
  • 907-490-1347 (office)
  • 907-322-22226 (mobile)

Stantec, Inc. (water expansion design consultant)

Flint Hills Resources Alaska (current owner of former refinery property and provider of alternative water to those impacted)

  • Ground Water Office
  • Tim Arnold
  • 1100 H&H Lane, North Pole, AK 99705
  • 907-488-0723

State of Alaska

DEC, Drinking Water Program (provides regulatory oversight of public water systems)

  • Drinking Water Program, Division of Environmental Health
  • Cindy Christian
  • Program Manager, Field Operations
  • 907-451-2138, 

DEC, Contaminated Sites Program (provides regulatory oversight on contaminated sites)

  • Contaminated Sites Program, Division of Spill Prevention and Response
  • Jim Fish
  • Environmental Program Specialist and Project Manager
  • 907-451-2117