HMH Experience – Ambient Air Quality / Meteorological / CEMS / COMS Monitoring

HMH personnel have designed, operated and coordinated ambient air quality and meteorological monitoring networks for over 20 years in several regions of Alaska. Specific projects are detailed below. The majority of these systems required specific considerations for monitor siting and sensor selection due to the harsh and remote climate of Alaska. For some projects desiccating and weighing of filters was required. Radio and satellite data transfer links had to be established for some of the remote projects. Quality Assurance Project Plan (QAPPs) and monitoring plans were prepared including ambient impact modeling for specific monitor siting. HMH pioneered the design and operation of mobile ambient air monitoring (MAAM) stations in Alaska with self-contained, insulated and climatized utility trailers fabricated in HMH’s shop in Anchorage. Recent project experience includes the following:


Flint Hills Resources (Williams Alaska Refining), North Pole Refinery, Ambient and Met Monitoring Network (2000-present)

Anchorage Loading Terminal

HMH designed and operated a PSD-level ambient air quality and meteorological monitoring network for the North Pole Refinery to support permitting for a major refinery expansion. Ambient monitoring was carried out at two sites for SO2, NO/NO2/NOx and was discontinued in 2003. The met station consists of a 30 foot tower which is operating to this date (On-line data are displayed on HMH-web site). Ambient data were collected by local data loggers and sent via cellular modem to a station computer in the HMH-shop in Anchorage. HMH evaluated specific siting and climatic considerations due to extreme cold climate conditions. The data recovery was near 100% and all collected data received approval by ADEC. The project was carried out on time and below budget.

Contact: Kip Whitehead, Environmental Coordinator, (907) 488-5158.


City of Sitka, Jarvis Power Station Monitoring Project (2008-11)

HMH conducted a PSD-level met monitoring project with ambient impact antenna monitoring pending. A 100’ met tower was installed under complex terrain conditions. HMH negotiated with ADEC specific siting considerations due to complex terrain and high precipitation. Special design modifications to the met gear had to be made due to repeat wildlife attacks. A QAPP was prepared in accordance with ADEC-guidelines. HMH developed data reporting formats and quality assurance procedures. Monthly, quarterly and annual summary data reports were prepared. The data recovery is near 100% and the first full year of collected data has been approved by ADEC. The met project was carried out on time and within budget. Dr. Ruby, Envirometrics performed independent audits.

Contact: Robert Dryden, City Engineer (907) 747-1885.


Alyeska Pipeline Service Co., Valdez Air Quality Monitoring Project (2004–2006)

HMH designed and operated an ambient air quality and meteorological monitoring network for the Valdez Marine Terminal. Ambient monitoring was carried out with a HMH mobile monitoring trailer and included SO2, NO/NO2NOx and CO. The met system was mounted on a tall tower with 300 foot and 30 foot levels. Data were collected bylocal data loggers and sent via modem to a station computer in the HMH-shop in Anchorage (On-line data were displayed on HMH-web site). HMH evaluated specific siting and climatic considerations due to extreme complex terrain and high precipitation climate. The data recovery was near 100% and all collected data received approval by ADEC. The project was carried out on time and within budget.

Contact: Brad Thomas, Air Quality Environmental Engineer (now with Conoco Phillips 907-263-4741).


Cordova Electric Assoc., Orca Power Station Monitoring Project (06-09)

Cordova Electric Cooperative, Cordova Alaska

Cordova Electric Cooperative, Cordova Alaska

HMH conducted a PSD-level met monitoring project with ambient impact monitoring pending. HMH evaluated specific siting and climatic considerations due to extreme complex terrain and high precipitation. Twin-met towers had to be established due to specific complex terrain conditions. A QAPP was prepared in accordance with ADEC-guidelines. Developed data reporting formats and quality assurance procedures. Monthly, quarterly and annual summary data reports were prepared. The data recovery was near 100% and all collected data received approval by ADEC. The project was carried out on time and within budget. Dr. Ruby, Envirometrics performed independent audits.

Contact: Danny Ackmann, Manager Power Prod. (907)424-5044.


City of Wainwright – Ambient/Met Monitoring Network – Independent Quality Assurance Audits (2009 – 2011)

HMH performs quarterly and semi-annual independent third-party audits for a 3-station ambient and met monitoring project in Wainwright, AK. HMH performs independent system and performance audits, audited the QAPP and all data reporting formats related to meteorological monitoring project. The audit project has been carried out to this date on time and within budget.

Contact: Tom Damiana, AECOM, (970) 493-8878.


Nome Joint Utilities Systems, Snake River Power Plant, Ambient Monitoring Project (2003–2005)

Nome joint monitoring

Monitoring Station

The project consisted of a PSD-level maximal impact station for SO2, NO, NO2 and NOx. Data were collected by a local data logger and sent via modem to a station computer in the HMH-shop in Anchorage. HMH evaluated specific siting and climatic considerations due to extreme complex terrain and high precipitation climate. HMH developed a specific procedure for the daily zero/span calibration process because the available gas calibrator did not have any communication ability with the data logger. A QAPP was prepared in accordance with ADEC-guidelines. HMH developed data reporting formats and quality assurance procedures, prepared monthly, quarterly, and annual summary data reports. The data received conditional approval by ADEC. The project was carried out on time and within budget.

Contact: John Handeland, Utilities Manager, (907) 443-6587.


Nova Gold, Donlin Creek Mine, Ambient Air Quality & Meteorological Monitoring Network (2002 – 2004)

HMH established background ambient impact stations for SO2, NO, NO2, NOx, CO, Ozone and PM10. Two 30 foot meteorological stations with remote power supplies (solar plus batteries) were established for windspeed and direction, delta temperature, humidity, precipitation and solar radiation A short-wave radio/data transfer link was established between one remote met station and the hub at the base camp and all data were successfully transmitted via satellite link to the HMH shop in Anchorage. QA/QC and SOP plans were approved by ADEC. HMH performed daily data downloads and QA checks; performed monthly, quarterly and annual summary reports. Compiled and reported data to DEC and did quarterly QA audits of all equipment. The project was carried out on time and within budget.

Contact: Chris Gates, Gates and Co. (907) 345-5453.


Clear Air Force Base, Meteorological Monitoring Program (2002-2004)

HMH conducted a PSD-level met monitoring program with a 30’ tower. Designed, built and installed on-site retractable tower structure per USAF-specifications. HMH evaluated specific siting conditions and instrumentation considerations due to extreme windy and cold conditions. A QAPP was prepared in accordance with ADEC-guidelines for third-party auditors. HMH developed data reporting formats and quality assurance procedures per USAF communications guidelines and prepared monthly, quarterly and annual summary data reports. The data were transmitted via a short-wave modem/transmitter to a station on base and relayed to the HMH-shop computer. The project was carried out on time and within budget.

Contact: John Basile, Environmental Compliance Coord., (907) 585-6398.


Kodiak Electric Association Meteorological System Audits (2007 – 2009)

HMH performed independent third-party audits for a met monitoring project in Kodiak, AK. HMH performed independent, quarterly system and performance audits, audited the QAPP and all data reporting formats related to meteorological monitoring project. HMH further reviewed, evaluated and analyzed ambient, meteorological and other data and report findings as required. Contact: Mike Ruby, Envirometrics, (206) 633-4456.


Anchorage Water and Wastewater Utilities, Asplund Wastewater Treatment Plant

Anchorage Water and Wastewater Utilities, Asplund Wastewater Treatment Plant

Anchorage Water and Wastewater Utilities, Asplund Wastewater Treatment Plant

  • Design/Construction/Operation/Maintenance of  THC/O2 Continuous Emission Monitoring System(CEMS) in Sludge Incinerator Stack
  • Maintenance/Audits of Continuous Opacity Monitoring System (COMS)