Superfund record of decision (EPA Region 9): Iron Mountain Nine, Shasta County, CA, September 1993

Technical Report · Fri Sep 24 04:00:00 EDT 1993

OSTI ID:7011033

This decision document presents the selected interim remedial action for control of heavy-metal-bearing acidic discharges, termed acid mine drainage, or AMD, from the Old and No. 8 Mines into Slickrock Creek. These discharges are the third largest source of AMD at the Iron Mountain Mine Superfund Site. Slickrock Creek is a tributary of Spring Creek, which in turn is a tributary of the Sacramento River. Slickrock Creek is on the south side of the Iron Mountain Mine (IMM) site. The IMM site is located about 9 miles northwest of Redding, California. The selected interim remedial action is to collect and treat the AMD for Old/No. 8 Mine Seep. The California Department of Toxic Substances Control (DTSC) and Regional Water Quality Control Board (RWQCB) concur with the selection of lime treatment and use of a process option that will produce a dense sludge as the interim remedial action for the Old/No. 8 Mine Seep acid mine drainage discharges.

• Research Organization: Environmental Protection Agency, Washington, DC (United States). Office of Emergency and Remedial Response
• OSTI ID: 7011033
• Report Number(s): PB-94-964511/XAB; EPA/ROD/R--09-93/101
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
540250* -- Environment
Terrestrial-- Site Resource & Use Studies-- (1990-)
ACID MINE DRAINAGE
ADMINISTRATIVE PROCEDURES
DECISIONS AND ORDERS
LAWS
POLLUTION LAWS
REMEDIAL ACTION
STREAMS
SURFACE WATERS
US SUPERFUND