COM 0865.001 1996-1998 - Laserfiche WebLink

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Draft Environmental Assessment June, 1998 Old Hilo Wastewater Treatmen int Page 10 6.8 Archaeological and Historic Sites The existing wastewater facilities are not significant historic structures. Due to the development of the subject parcel, it is unlikely that any significant historic sites would be present on the parcel. 6.9 Flora and Fauna The 1980 "Wastewater Facilities Plan, Hilo District" issued by the Department of Public Works listed all the birds and mammals found in the Hilo area. This report noted that endangered species of birds are found in either forested uplands or near ponds such as the Waiakea, Kionakapuha or Lokoaka. These endangered birds included Dark-Rumped Petrel (Pterodroma phaeophygia sandwichensis), Hawaiian Hawk (Buteo solitarius), Hawaiian Gallinule (Gallinula chloropus sandwichensis) or the Hawaiian Coot (Fulica americana alai). The only endangered mammal, the Hawaiian Bat (Lasiurus cinereus semotus) is generally found throughout the Hilo area. Based on this report and a visual observation, no endangered animal species are expected to be found on the site. 7.0 MAJOR IMPACTS AND MITIGATION MEASURES 7.1 Short-term Renovation Related Impacts All proposed demolition and renovation activities will be conducted within the project property boundaries. Most of the abandoned machines and equipment will be removed from the property. There are no major earth moving operations associated with this project. The dust, noise and traffic are expected to be the main conversion related impacts, since all conversion activities will be in the vicinity of residents. However, these nuisances are temporary and abatement measures will be undertaken during renovation. Dewatering is not anticipated for renovation. Routine operations at the Center are not expected to materially effect the existing level of traffic and noise in the area. The Center's operations will take place 24 hours per day, just as was the case for the Old Hilo WWTP and the new Pua Street Pumping Station. A Phase I environmental site assessment (ASTM practice El 527) of the subject property has been performed which determined that no hazardous substance contamination exists that may affect the demolition, renovation and conversion. Possible underground contamination from the abandoned UST will be investigated, as a part of the UST removal activity. If the UST has leaked, the appropriate spill response activities will be undertaken, per DOH guidelines and requirements.