WebThe source area need not be the horizontal and vertical extent of the protective concentration level exceedence zone when cross-media or lateral chemical of concern transport is required for a point of exposure to be reached. Generally, a source area is located in the vicinity of or below primary release sources (e.g., tanks, pipelines, drums ... WebTRRP NAPL Guidance (NAPL done right) RTDF/TCEQ LNAPL-fest January 23, 2003 Chet Clarke – TCEQ Mark Adamski - BP . ... • Encourage source area abatement • Recognize the difficulty associated with NAPL recovery • Determine endpoints for NAPL sites NAPL = non-aqueous phase liquids .
TRRP Guidance and Forms - www.tceq.texas.gov
WebFor each source area, use TCEQ 1006 to fractionate the extract of the sample with the highest TPH concentration 5. Following the TRRP 27 guidance, use Tier 1 PCLs for the aliphatic and aromatic TPH boiling point ranges and the TCEQ 1006 mass fraction results for each range to calculate PCLs for the site-specific TPH mixture 6. Web3 Active gravel bar area is especially low in the mainstem Trinity River between Grass Valley Creek and Indian Creek (https: ... Depending on the source of gravel to be added, TRRP would work with locals to minimize the impact of trucking on their neighborhoods. Trucking speeds would be kept slow and hauling schedules would be timed to minimize ... interpreting a hepatitis panel
2392 Reg PMZ Nov5 - GSI Environmental Inc.
WebTRRP-15 (Background) Source Area Size . Assessment levels for certain exposure pathways are dependent on the source area size of the COC. This document . 1. If unknown, assume … WebNov 12, 2012 · the release is subject to TRRP. Scenario #3: COC COnCentratiOns are abOve aCtiOn levels. If the concentrations exceed soil action levels, the release is subject to TRRP, unless the person elects to evaluate the groundwater exposure pathway. Collect a representative groundwater sample from each source area to document whether … WebGroundwater samples collected from the monitoring well installed in the source area contained several PFAS compounds, which is consistent with the use of fire suppression chemicals. Concentrations of PFAS compounds exceeded groundwater ingestion protective concentration levels (PCLs) established in Texas under TRRP. new era nursing services