Summary Information
(last updated on: 3/29/2021 3:14:03 PM)
Former sawmill facility, including two large log ponds and a refueling area that occupied approx. 30 acres. The mill operated under various names (Hobin Mill, Quad Mill, etc.) between 1955 and 1998. The two log ponds were reportedly filled with wood waste and rock during the 1980s. In 1989 a notice of non-compliance was filed by DEQ due to an off-white gelatinous discharge coming from the site log ponds and filling both drainage ditches along Chapel Drive. In 2018, petroleum hydrocarbons were found in subsurface soils above DEQ’s allowable risk-based concentrations (RBCs) for the proposed use of the property as a residential development. In 2020, methane gas was identified in a few locations across the property above its lower explosive limit (LEL) of 5%. Also in 2020, residential development and occupancy for the Millpond Crossing subdivision began along the western edge of the site. Due to unknown environmental conditions and residential use of the site, further investigation is required.
General Site Information
Site: Philomath Mill Site (ECSI Site ID: 6296) CERCLIS (EPA) Id
Project Manager: ANTHONY CHAVEZ Investigative Status:Contamination Suspected
PM Phone: 541-687-7348 NPL(National Priority Listing):No
Address: 1701 Chapel Drive Is this site an Orphan?No
Philomath, 97370 Is this site a brownfield?No
County: BENTON Action Underway or Needed: INDEPENDENT CLEANUP
Region: Western Region Click for more details ...  
Site Documents
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File NameCategory File Size MB Document Date Upload Date
4-13-2020 DEQ Work Plan Response.pdf Correspondence 1.8108 4/13/2020 10/16/2020
6296_Methane Correspondance_3-15-2021.pdf Correspondence 0.4420 3/15/2021 3/17/2021
6296_Methane&RemainingAssessments_WarningLetter_09-08-2020.pdf Correspondence 0.2183 9/8/2020 3/19/2021
6296_Methane&RemainingAssessments_WarningLetter_02-05-2021.pdf Correspondence 0.7396 2/5/2021 3/19/2021
6296_DEQ Comments_Methane Assessment Work Plan - Lots 1 to 64.pdf Correspondence 0.2510 3/25/2021 4/6/2021
6296 UpdateHomeownersMethaneMitigationMeasures_3-30-2021.pdf Correspondence 11.2804 3/30/2021 4/8/2021
6296 Millpond'sAccessAgreement_3-30-2021.pdf Correspondence 0.1275 3/30/2021 4/8/2021
6296_Philomath-Mill-Millpond-Crossing-Factsheet-August2021.pdf Fact Sheets 0.4851 8/30/2021 8/30/2021
well logs 2000 Phase I.pdf Miscellaneous 6.1360 7/20/1970 10/7/2019
1989 Notice of Noncompliance.pdf Miscellaneous 1.2169 4/27/1989 3/23/2020
DRAFT Methane Monitoring Data from April 13and14 -2021.pdf Miscellaneous 0.7531 4/16/2021 5/3/2021
DRAFT Methane Monitoring Data from April 23 -2021.pdf Miscellaneous 1.0512 4/23/2021 5/3/2021
DRAFT Methane Monitoring Data from April 28 -2021.pdf Miscellaneous 1.0954 4/29/2021 5/3/2021
DRAFT Methane Monitoring Data April 13 to May 6 -2021.pdf Miscellaneous 0.1683 5/11/2021 5/12/2021
DRAFT Methane Monitoring Data April 13 to May 12 -2021.pdf Miscellaneous 1.0075 5/14/2021 5/14/2021
DRAFT Methane Monitoring Data April 13 to May 19 -2021.pdf Miscellaneous 0.1764 5/19/2021 6/1/2021
DRAFT Methane Monitoring Data April 13 to May 26 -2021.pdf Miscellaneous 0.1826 5/26/2021 6/1/2021
May 2021 Methane Sample Location Map.pdf Miscellaneous 0.8312 5/27/2021 7/28/2021
October 7-2021 Methane Sampling Results.pdf Miscellaneous 1.8658 10/7/2021 10/12/2021
October 15-2021 Methane Sampling Results.pdf Miscellaneous 0.5174 10/15/2021 10/21/2021
October 22-2021 Methane Sampling Results.pdf Miscellaneous 0.5525 10/26/2021 11/3/2021
October 29-2021 Methane Sampling Results.pdf Miscellaneous 0.5996 11/2/2021 11/3/2021
Feb17-2022_Methane Monitoring.pdf Miscellaneous 0.5446 3/2/2022 3/7/2022
Philomath Mill Consent Order LQVC-WR-21-03 (part 1) - signed 07-27-21.pdf Orders/Consent Judgments 1.0270 7/27/2021 8/16/2021
6296PhilomathMillConsentOrderAmendment 1 [Fully Executed].PDF Orders/Consent Judgments 0.2563 6/15/2022 8/4/2022
6296PhilomathMillConsentOrderAmendment2_signed.PDF Orders/Consent Judgments 0.2683 7/27/2022 8/4/2022
6296PhilomathMillSiteLienReleaseAndCoverLetter.pdf Orders/Consent Judgments 1.0927 6/15/2022 8/4/2022
ECSI6296PhaseTwo6-6-2018.pdf Reports 19.2535 6/6/2018 10/23/2018
May 2018 Phase 1 - Philomath Mill Philomath OR (Part 1 of 3).pdf Reports 2.3112 5/10/2018 10/7/2019
Phase 1 - Philomath Mill Philomath OR (Part 2 of 3).pdf Reports 4.0750 5/10/2018 10/7/2019
Phase 1 - Philomath Mill Philomath OR (Part 3 of 3).pdf Reports 4.2887 5/10/2018 10/7/2019
2000 Phase I Environmental Site Assessment for Quad Mill.pdf Reports 14.2592 2/18/2000 10/7/2019
ECSI6296Additional Phase II_7-2018.pdf Reports 18.0375 7/10/2018 10/7/2019
2001 Groundwater Quality Assessment.pdf Reports 3.3490 7/30/2001 10/7/2019
June 2020 Methane Testing PHLMTH MILL SITE_LFG Survey_REPORT_FINAL061020 (002).pdf Reports 5.3315 6/10/2020 11/4/2020
20220617_REV PrelimRI_FINAL_embedded DEQ comments.pdf Reports 11.9448 6/17/2022 8/4/2022
FORMER PHILOMATH MILL_Supplemental Site Characterization WP.pdf Work Plans 1.4464 10/24/2019 10/16/2020
6296_Methane Assessment Work Plan - Lots 1 to 64.pdf Work Plans 15.8140 3/23/2021 4/6/2021
6296_MethaneWorkPlan_08-25-2021.pdf Work Plans 2.9824 8/25/2021 9/20/2021
Photographs

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Aerial 1956
10/7/2019
Aerial 1966
10/7/2019
Aerial 1971
10/7/2019
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