Mississippi Department of Environmental Quality
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EnPro Industries, Inc. (Water Valley)

Colt Industries Holley Automotive Site EnPro Industries, Inc.

Disclaimer: MDEQ’s Office of Community Engagement provides digital access to files in its Electronic File Room as a convenience. While the Office of Community Engagement attempts to update the electronic file room on a regular basis, MDEQ cannot guarantee that all of the documents associated with a facility or project are included. To review the entire file, please submit a Public Records Request.

MDEQ Approval of Interim Subslab Depressurization SystemInterim Subslab Depressurization Proposal to Prevent Soil Gas Infiltration at Borg Warner Facility 2017.02.13EnPro Fact Sheet 02.2017EnPro Fact Sheet 02.2016 1990 Coltec Industries OrderData summary for Samples SG001 SG024 February 24, 2016Data summary for Samples SG001 SG024 February 24, 2016Data summary for Samples SG001 SG024 February 24, 2016Data summary for Samples SG001 SG024 February 24, 2016Former Holley March 2015 1st Semiannual Sampling ReportFormer Holley September 2015 2nd Semiannual ReportSoil Gas Sample LocationsEnPro Industries, Inc. Order 2016North MS Herald: Latest MDEQ Testing Indicates No Health Threat Page 1 Page 2North MS Herald: Latest MDEQ Testing Indicates No Health Threat Page 1 Page 2

Corrective Action Workplan

Workplan and Corrective Action Letter to MDEQ 3-14 2018Corrective Action Workplan, Rev 2, Letter to MDEQ 5-15-2018

Conceptual Site Model

Conceptual Site Model & Initial Corrective Action Workplan Letter 4-3-2017

Groundwater Report

1st Semi-Annual Sampling Report March 20152nd Semi-Annual Report September 20152nd Semi-Annual Report Revised September 20151st Semi-Annual Report March 2016Groundwater Monitoring Report September 26, 2017

HVDPE Workplan

HVDPE Pilot Test Workplan April 6, 2018

ISCR Workplan

ISCR Workplan and Corrective Action Letter to MDEQ March 14, 2018ISCRP Workplan for the Northwest Parking Lot December 22, 2017

MiHpt Workplan and Report

MiHpt Investigation Workplan with Certification January 1, 2017 MiHpt Investigation Report Letter to MDEQ April 7, 2017 MiHpt Investigation Report April 7, 2017 MiHpt Investigation Report, Revised Exhibit B, April 12, 2017

Sub-Slab Depressurization System & Indoor Air

2017_03_08_Complete IRM SOW2017_05_26_laboratory report for indoor air2017_06_08_Letter Indoor Air Sampling2017_07_17_SSDS Progress Report2017_02_13_Complete SSD System Proposal_reduced2017_08_07_SSDS Progress Report2017_08_21_SSDS Progress Report2017_09_11_Letter to MDEQ2017_09_20_Letter to MDEQ2017_10_02_SSDS Progress Report2017_10_09_SSDS Progress Report2017_10_11 Letter to MDEQ re Air Permit Evaluation2017_10_11 Letter to MDEQ re IA Sampling Schedule2017_10_11 Letter to MDEQ re SSDS Effectiveness Evaluation2017_10_19_SSDS Progress Report2017_11_01_SSDS Progress Report 2017_11_09_Complete SSDS Effectiveness Evaluation Letter2017_11_15_SSDS Progress Report2017_11_29_SSDS Progress Report2017_12_13_SSDS Progress Report2017-07-03 SSDS Progress Report2017-09-11 SSDS Progress Report2018_01_08_SSDS Progress Report2018_01_12 Letter to MDEQ re Sump Relocation2018_01_12 SSDS Progress Report Revised2018_01_30_SSDS Progress Report2018_02_14_Complete Final SSDS Progress Report2018_02_23_ Final SSDS Progress Report2018_03_08_SSDS Progress Report2018_03_22_SSDS Progress Report2018_07_16_SSDS Progress Report2018_07_25_SSDS Progress Report2018_04_16 SSDS Complete Progresss Report2018_04_23_SSDS Progress Report2018_05_07_SSDS Progress Report2018_05_18_SSDS Progress Report2018_06_04_SSDS Progress Report2018_06-15_SSDS Progress Report2018_07_03_SSDS Progress Report

Vapor Intrusion (VI) Work Plan

2015_11_03_Final VI Work Plan_110315_12016-11-18_EnPro VI WP with Certification2017_06_19_VI Investigation and Mitigation Report - Text Only
EnPro Industries, Inc, Water Valley, MS
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