|
HWAAP-E02
HWAAP SEWAGE TREATMENT PLANT
EVAPORATION/PERCOLATION PONDS
SITE DESCRIPTION
This is an active site, and therefore is not eligible for Installation Restoration Program funds. HWAAP-E02A, E02B, and E02C have been in operation since 1930. The Sewage Treatment Plant (STP) was designed to treat 0.4 million gallons per day (MGD) of sewage. The STP consists of two parallel Imhoff tanks with bar screens, an open sludge holding tank, an incomplete dosing siphon, 20 evaporation/percolation ponds, and two unlined sludge drying beds. The fluid flows from the sludge settling tank to the evaporation/percolation ponds, and the effluent percolates to the groundwater. The USGS, during their Phase II investigation, confirmed that contaminants have leaked from the ponds to the ground water. The groundwater is approximately 90 feet below the surface. Groundwater monitoring wells were installed down gradient of the site.
PROPOSED PLAN
This site is considered Response Complete under the Installation Restoration Program, any current/ future action will be managed under the NPDES permit.
 Previous Site Summary  Next Site Summary
IRP Home Page
Table of Contents -- IRP Site Summaries
NDEP - Site Map
|
