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2.1.1 Narrative
During this reporting period (October 19-24, 2015), the following tasks have
been completed:
4765 H Mitchell Road
- DU 201G: Restoration complete. No further work is planned at this decision unit.
4765 A Mitchell Road
- DU 35: Restoration complete. No further work is planned at this DU.
- DU 39: Awaiting hydro-seeding.
- Staging area: Relocated unused backfill material. Conducted site restoration activities in areas where vehicles and supplies were stored. Awaiting hydro-seeding and final property inspection.
· Unknown Property Address, End of Mitchell Road
- DU 49: Restoration complete. No further work is planned at this DU.
4765 C Mitchell Road
- DUs 203, DEA-A, DEA-B, DEA-C: Sod maintenance was performed.
- Conducted minor site restoration activities on the driveway.
- Awaiting hydro-seeding and final property inspection.
4765 K Mitchell Road
- DUs 7, HIC-A, and HIC-B: Completed property inspection with the property owners.
- Restoration complete. No further work is planned for this property.
4765 Q Mitchell Road
- DU 195: No work was conducted on this DU during this reporting period. Awaiting hydro-seeding.
- DU HUB: Restoration complete. No further work is planned at this DU.
- Conducted minor site restoration on driveway and areas where materials were stored.
4361 K Highway 25 North
- DU 319M: Restoration complete. No further work is planned at this property.
4291 Highway 25 North
- DU 40: Awaiting hydro-seeding.
- Awaiting site restoration and final property inspection.
4765 F Mitchell Road
- DU KNI-AB: Restoration complete. No further work is planned at this DU.
- DU KNI-C: Restoration complete. No further work is planned at this DU.
- DU KNI-D: Installed lumber around base of garden enclosure to contain backfilled soil. Placed topsoil in garden area. Approximately 80% complete.
- At the request of the property owner, placed gravel from lay down area on access road to the dock.
- Awaiting final property inspection.
4361 A Highway 25 North
- DU 151: Conducted restoration activities.
- Awaiting hydro-seeding and final property inspection.
4110 Deep Lake Boundary Rd
- DU 218 and DU ROY: Backfilling and compaction was completed at both DUs. Conducted site restoration activities.
- Awaiting hydro-seeding and final property inspection.
Parcel Number 151-H 195
- DU TA 195-A and DU TA 195-B: Backfilling and compaction to original grade was completed.
- Conducted site restoration activities.
- Awaiting hydro-seeding and final property site inspection.
Mitchell Road Property, lot 5089400
- DU 109: Backfilling and compaction to original grade was completed.
- Conducted site restoration activities.
- Awaiting hydro-seeding and final property inspection.
5152 Northport-Waneta Road
- DU 18: Received analytical results which indicated that all sampled areas were below site cleanup levels. Backfilling and compaction to original grade was completed. Site restoration was conducted in areas where materials and vehicles were staged.
- Awaiting hydro-seeding and final property inspection.
Central Soil Stockpile (located at the Command Post)
- Received analytical results which indicated that all sampled areas were below site cleanup levels. Backfilling and compaction to original grade was completed. Site restoration was conducted in areas where materials, trailers, and vehicles were staged.
2.1.2 Response Actions to Date
Refer to POLREP 1.
2.1.3 Enforcement Activities, Identity of Potentially Responsible Parties (PRPs)
On
August 11, an Administrative Settlement Agreement and Order on Consent (ASAOC)
for Removal Action (Docket No. CERCLA-10-2015-1040) was signed by EPA, Teck
Metals Limited, and Teck American Incorporated. The ASAOC provides the
terms of the agreement under which Teck will conduct the removal action under
oversight by EPA.
2.1.4 Progress Metrics
As of October 31, 2015:
Waste Stream |
Medium |
Quantity |
Manifest # |
Treatment |
Disposal |
Soil |
Solid |
7,036 tons |
varies |
NA |
Landfill |
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2.2.1 Anticipated Activities
2.2.1.1 Planned Response Activities
During
this removal action, contaminated soil will be excavated and removed from 14
residential properties and 1 tribal allotment. Soil will be excavated in
6" lifts to a maximum depth of 12" total depth (24" total depth
in garden areas). The excavation will be backfilled with the material of
the property owner's choice. The excavated soil will be transported and
disposed at an appropriate landfill.
2.2.1.2 Next Steps
Over the next (final) reporting period, the following activities are scheduled to occur:
- Complete restoration at all properties.
- Hydro-seeding is planned for 10 properties. All hydro-seeding is anticipated to be completed by November 11.
- Conduct final property inspections with homeowners (if possible).
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Road base material will be spread out on Mitchell Road to fill areas of ruts and pot holes.
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Decontaminate and demobilize all equipment, trailers, and personnel.
2.2.2 Issues
All properties that require hydro-seeding will be hydro-seeded beginning November 2 and is expected to continue until approximately November 11.
The first significant rainfall occurred during the last reporting period. The rainfall made the backfilling more difficult and resulted in increased damage to unexcavated areas by heavy equipment and truck traffic. Backfilling was temporarily suspended at the remaining property that isn't backfilled.
Daylight Saving Time ended resulting in the sun setting earlier in the afternoon (approximately 4:30 pm). We will begin work earlier (6:30 am) to maximize working time in daylight hours.
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