Prepared By:
MONTANA BUREAU OF MINES AND GEOLOGY
Document Type
Government Report
Publication Date
Spring 4-2023
Subject Area
Butte
Recommended Citation
Montana Bureau of Mines and Geology, "MONTANA BUREAU OF MINES AND GEOLOGY BUTTE ALLUVIAL AND BEDROCK CONTROLLED GROUNDWATER AREA MONITORING 2022 DATA SUMMARY REPORT" (2023). Silver Bow Creek/Butte Area Superfund Site. 995.
https://digitalcommons.mtech.edu/superfund_silverbowbutte/995
Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 International License.
Included in
Environmental Health and Protection Commons, Environmental Indicators and Impact Assessment Commons, Environmental Monitoring Commons
Comments
The BABCGA identified numerous uses of private wells installed within its boundary that include those used for domestic (potable water), irrigation, industrial, and monitoring. New domestic water wells have been prohibited in Butte since 1992 for residences within 300 feet of a municipal water line; however, other types of well installation for irrigation, industrial and monitoring are allowed, following certain conditions. There are also existing wells that were installed prior to 1992. Monitoring wells are excluded from the BABCGA provisions, while potable, irrigation, and industrial wells are regulated under the sampling provisions. A sampling program has been instituted for private wells within the BABCGA to reduce human and environmental exposure to arsenic, cadmium, copper, lead, mercury, and zinc (table 1), which is a subset of the contaminants of concern (COCs) defined in table 8-1 of the BPSOU Record of Decision (EPA, 2006). The 2022 sampling program was conducted under the 2022 QAPP for this project (MBMG, 2022).