Dames & Moore, 1999 - USDA Forest Service

system delineated by ditches and retaining walls for yards and foundations. In some cases, metal tanks were
observed partially exposed, in which case the vent and fill pipe connections were visible. The exposed
USTs exposed were generally found to be cylinders measuring on the order of 2 feet in diameter and 3 feet
long. The partially exposed USTs were found with the axis of the cylinders parallel to the ground surface.
The partially exposed tanks were observed with the vent and fill pipes at opposite ends of the tanks. The
thickness of the tank walls was noted to be approximately 118 inch.
Figure 4.1-5a displays the results of the tank inventory, including the approximate locations of the tanks; in
most cases the locations of the tanks were based on the presence of vent and/or fill pipes. Other
observations noted during the invkntory are also documented on the figure. However, due to the presence of
vegetative ground cover, the inventory should not be considered all inclusive. In addition, it was found that
some of the vent and/or fill pipes associated with the tanks had apparently been damaged and/or removed
during the demolition of the houses.
An odor of apparent petroleum hydrocarbons was noted at several of the vent and/or fill pipes. However, no
indications of stressed vegetation and/or spilled fuel product was noted on the ground surface surrounding
the tanks. One of the tanks was observed with a hole created as a result of rust. The tank had filled with
water; however, no indications of a sheen andlor petroleum hydrocarbons odor were noted.
Two apparent ASTs were also noted in the Winston area. The ASTs were noted to be cylindrical metal
tanks with the fill pipes at one end and a vent near the center of the tank. The drain line was noted at the
bottom of the tanks.
Assuming one pair of vent and fill pipes per tank, a total of 38 USTs and 2 ASTs were documented. It is
likely that each house had more than one tank for fuel storage. It is also possible that additional USTs are
present which were not inventoried due to vent and/or fill pipes which had been broken off. However, it is
also possible that a majority of tanks have been inventoried, and that the remainder of the tanks were instead
ASTs.
Based on the interview with the o olden Village volunteer (personal communication with Mark Bjorkie,
Holden Village volunteer, 1997), it appears that the fuel used in the houses was diesel range petroleum
hydrocarbons. The characteristics of the diesel product are such that it is normally possible to utilize the
fuel in cold weather without insulation or auxiliary heating to decrease viscosity. Consequently, it is
possible that the remainder of the homes utilized ASTs versus USTs.
4.1.2.7 Baseball Field and Campground
Referring to Figure 4.1-3, a baseball field exists approximately one-half mile to the west of the village, and
is utilized intermittently throughout the summer months by Holden Village. The field appears to have been
constructed by Howe Sound utilizing soil removed from a cut slope immediately north of the field. The
entire area is mostly covered with grass vegetation. The Glacier Peak Wilderness boundary is located
several hundred yards west of the baseball field. Hiking trails leading to the wilderness area originate to the
north of the field. It is suspected that the trail was constructed atop portions of an abandoned roadbed
utilized to gain access to mine workings and/or mineral claims upstream of the Site. The baseball field is
bounded to the south by Railroad Creek, and the east by a campground.
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17693405-019Vuly 19. 1999:4:51 PM:DRAFT FINAL RI REPORT