MACTEC Awarded Stormwater Contract from U.S. Navy
MACTEC Engineering & Consulting has been retained by the U.S. Navy to implement an extensive stormwater monitoring program for 15 military installations in California and Arizona, and perform an illicit connection study of a subsurface storm drainage system at the Marine Corp Air Station (MCAS) in Yuma, Ariz.
The stormwater monitoring program encompasses the following military installations:
* Naval Base Coronado Complex (NBCC), Coronado, Calif. This also includes Naval Air Station North Island; Naval Amphibious Base; Naval Auxiliary Landing Field, San Clemente Island; and Naval Outlying Land Field, Imperial Beach.;
* Naval Base Point Loma, San Diego (NBPL). Comprised of five bases – Naval Submarine Base San Diego; Magnetic Silencing Facility; FISC (Fleet Industrial Supply Center) Point Loma; SPAWAR (Space and Naval Warfare Systems Center) Point Loma Campus; and SPAWAR Pacific Highway Complex;
* Naval Base San Diego (NBSD). Also includes Fleet Industrial Supply Center Broadway Complex;
* MCAS Yuma, also includes Camp Billy Machen;
* Hunters Point Shipyard, San Francisco, Calif.; and
* Marine Corp Air Station Miramar.
According to MACTEC Project Manager James J. Hogan, P.E., there are multiple NPDES permits managed under this program, including the California General Permit for Stormwater Discharges from Industrial Facilities, NPDES permits for discharges from NBCC, NBPL and NBSD developed by the San Diego Regional Water Quality Control Board, and the AZPDES (Arizona Pollutant Discharge Elimination System) permits for Industrial Storm Water Discharges and MS4s (Municipal Separate Storm Sewer Systems).
"The California programs require quarterly dry weather observations of stormwater discharge locations that are observed for unauthorized flow, monthly visual observations of stormwater discharges, bi-annual sampling, annual site compliance evaluation, and developing an annual report that will be submitted to regulatory agencies," Hogan said.
Hogan added that MACTEC will also update a Stormwater Pollution Prevention Plan and incorporate the monitoring data and information into a GIS developed by the firm for the stormwater monitoring program.
The MCAS Yuma project involves performing a study to identify illicit connections in both industrial and non-industrial areas. The firm is reviewing as-built drawings of the subsurface storm drainage system to identify existing connections. MACTEC will then visually survey the storm drainage structures to verify accuracy of the drawings and identify non-storm water discharges.
"When the flow sources are identified, we’ll indicate if they are authorized under the AZPDES (Arizona Pollutant Discharge Elimination System) permit," Hogan said. "Field investigation results will be presented in a report that summarize recommendations to repair or eliminate illicit connections."
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