Silver Creek - Division of Water Quality - Utah.gov
Silver Creek - Division of Water Quality - Utah.gov
Silver Creek - Division of Water Quality - Utah.gov
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<strong>Silver</strong> <strong>Creek</strong> <strong>Water</strong>shed TMDL Final Report<br />
NFRAP ( No Further Remediation Action Planned) <strong>of</strong> the <strong>Silver</strong> Maple Claims<br />
site as <strong>of</strong> 11/8/2000:<br />
“This site (<strong>Silver</strong> Maple Claims Site) is located on a 38 acre parcel <strong>of</strong> public<br />
land within the <strong>Silver</strong> <strong>Creek</strong> drainage area about one mile northeast <strong>of</strong> downtown<br />
Park City. The site is situated between two prominent land features known as the<br />
Prospectors Square Subdivision <strong>of</strong> Park City and Richardson Flats. The<br />
environmental impact report for the groundwater and surface water study<br />
concluded that the tailings in the Prospector Square area are affecting<br />
groundwater quality in the unconsolidated valley fill aquifer.”<br />
33 Table 10: List <strong>of</strong> Known Sources: A considerable amount <strong>of</strong> tailings materials<br />
occur below (east) <strong>of</strong> BLM’s <strong>Silver</strong> Maple Claims site and is thought to be owned<br />
by Park City Municipal Corporation (conversation with Mike Nelson).<br />
36 Table 11: Source Information: <strong>Silver</strong> Maple Claims- BLM add<br />
1) BLM, Site Investigation (SI) 2003; 2) Wetland Functional Assessment, 2003<br />
Dynamac, 3) Macro-invertebrate study, 2003, University <strong>of</strong> <strong>Utah</strong>,<br />
4) Geoprobe coring, Dynamac, 2003.<br />
36 6.2, Future Sources. “It is expected that all future development activities<br />
will avoid contaminated areas and, as a result, it is expected that these areas will<br />
not contribute zinc or cadmium load to <strong>Silver</strong> <strong>Creek</strong>.”<br />
I am not sure what this is saying for future development activities at Prospector<br />
Square and/or at the <strong>Silver</strong> Maple Claims area. Is there some regulatory<br />
enforcement “teeth” behind this expectation? Any activities that will increase the<br />
contaminant run<strong>of</strong>f to the PC pipe should be regulated for successful downstream<br />
efforts. Likewise any planned activities by others (ie. Park City, BLM has no<br />
plans for any development <strong>of</strong> the <strong>Silver</strong> Maple Claims site to date) should also be<br />
regulated.<br />
40 <strong>Silver</strong> <strong>Creek</strong> <strong>Water</strong> Reclamation Facility: Where and what is this? Is this the<br />
same facility as the Snyderville Wastewater Treatment Plant?<br />
BLM still wonders if it is possible to hook the Prospector drain up to the<br />
Exit sting sewer system in which the fluids would effectively bypass the <strong>Silver</strong><br />
Maple Claims Site to the wastewater treatment plant.<br />
44 Temporary Erosion Control: How is downward water percolation dealt with in<br />
the Park City Contaminated Soils Ordinance? This downward percolation is <strong>of</strong><br />
concern to BLM because we assume that downward water would percolate<br />
through the large tailings pile at Prospector Square and may source the Prospector<br />
Drain which is flowing onto BLM. This downward percolation <strong>of</strong> water I believe<br />
should be identified as a source <strong>of</strong> contamination and contribution to the<br />
Prospector Drain.<br />
97