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H&M Oil Site
The H & M Oil, Inc., Triangle site is an oil storage facility located in Pocatello, Idaho. The site is located at the intersection of three streets; West Maple, First, and Madison Streets that come together to form a triangle (Latitude 42' 52.49, Longitude 112' 27.59). The facility is composed of three vertical above ground storage tanks (ASTs), drums, and a portable storage container. The ASTs contain waste oil, water, & sludge. The capacity of the ASTs range from 8,000 to 12,000 gallons.
Idaho Department of Environmental Quality referred the site to EPA as a potential major inland spill. In summary:
- This site is located 200 yards from Portneuf River. Portneuf River feeds directly into the American Falls Reservoir and is a tributary of the Snake River.
- Drinking water intakes are located approx. 1 mile from Site.
- Site appears to be illegally operated. Owner lives in another state and was unaware of activities at the site.
- ASTs at site are not undergoing routine maintenance and inspection.
- Operations have resulted in spills as evidenced by soil staining.
- Site access is not restricted.
- Secondary containment at the site is inadequate given that there is no paved area directly under the tanks or drums to control a spill.
- Spills go directly into gravel and dirt.
- An opening in the secondary containment wall would allow a major spill to leave the containment area and it is likely that such a spill would enter the Portneuf River.
Read more about it in the Initial Pollution Report (April 4, 2001)
Final Pollution Report - May 10
Fact Sheet
May 2001 - Cleanup to begin
May 10, 2001:
55 gallon drums |
free floating oil |
leaking piping |
oil sludge stored in container |
oil spills |
stained soil |
opening tanks |
tank removal |
clean site |

H&M Oil above ground storage tanks. | 
Snow covered contaminated soil in the tank farm secondary containment. |

Two of the 10,000 gallon above ground storage tanks. | 
10,000 gallon tank leaking unsecured value in the secondary containment. | 
Piled up contaminated soil & unsecured value attached to 10,000 gallon tank. |
Community Involvement Coordinator:
Charles Bert (206) 553-0225
[ Main Cleanup | Brownfields ]
[ Superfund | FOIA | Records Center ]
Point of contact: Michael Sibley
E-Mail: sibley.michael@epa.gov
Phone Number: (206) 553-1886
Last Updated: 07/23/2007
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