The TCEQ has made several minor revisions to the Texas Risk Reduction Program (TRRP) Tier 1 Protective Concentrations Levels (PCLs) which were released in early September 2014. The revised tables, dated November 12, 2014 will replace the September 2014 tables. You can access the revised tables using the link: http://www.tceq.texas.gov/remediation/trrp/trrppcls.html The 2014 PCL tables are a single Microsoft Excel workbook, with each table on a separate worksheet. The tables are also presented as a print only Adobe Acrobat portable document format (PDF) file. The Excel file and the PDF file each contain PCL tables 1 through 10 and the [...]

The TCEQ updates to the Texas Risk Reduction Program (TRRP) Tier 1 Protective Concentration Levels (PCLs) are now available at: https://www.tceq.texas.gov/remediation/trrp/trrppcls.html The 2014 PCL table update is a single Microsoft Excel workbook with each table on a separate worksheet. The updates are also available as a print only Adobe Acrobat portable document format (PDF) file. The Excel file and the PDF file each contain PCL tables 1 through 10 and the supporting tables in the following order: Summary of Updates Table 1 – Tier 1 Residential Soil PCLs Table 2 – Tier 1 Commercial/Industrial Soil PCLs Table 3 – [...]