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Maximum and Average Maximum Only Average Only 

Pyrene 

Aluminum 

Antimony 

Arsenic 

Barium 

Beryllium 

Cadmium 

Chromium 

Copper 

Iron 

Lead* 

Manganese 

Mercury 

Nickel 

Silver 

Thallium 

Vanadium 

Zinc 

Literature-based SBVs were exceeded by multiple constituents for average and/or maximum 

concentrations including six BNAs and sixteen metals. One constituent (naphthalene) had only 

the average concentration that exceeded a benchmark. 

Lead was the only constituent detected at a concentration that exceeded the Wildlife Food-Chain 

Benchmarks for the Northern bobwhite and the white-footed mouse as identified above with an 

asterisk (*). Twelve constituents including eight BNAs and four metals (all essential nutrients) 

did not have ecological benchmarks from which to compare detected surface soil concentrations 

in the Maintenance Shed Area.

EPA Region 6 and TCEQ background soil screening values were exceeded by numerous metals 

at the Maintenance Shed Area. Fifteen metals also exceeded site-specific background area 

screening values. 

5.1.1.5 Tar Burn Area 

The complete soil screening results for the Tar Burn Area are presented in Table 5-5. COPEC 

that were identified within the Tar Burn Area are presented below. Average and/or maximum 

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detected concentrations for COPEC that exceeded their SBVs can be summarized from Table 5-5 

as follows: 

Maximum and Average Maximum Only Average Only 

Anthracene Naphthalene 

Benzo(a)pyrene 

Benzo(k)fluoranthene 

Fluoranthene 

Phenanthrene 

Pyrene 

Aluminum 

Antimony 

Arsenic 

Barium 

Beryllium 

Cadmium* 

Chromium 

Copper 

Iron 

Lead* 

Manganese 

Mercury 

Nickel 

Silver 

Thallium 

Vanadium 

Zinc* 

Literature-based SBVs were exceeded by multiple constituents for average and/or maximum 

concentrations including seven BNAs and seventeen metals. Again, one constituent 

(naphthalene) had only the average concentration that exceeded a benchmark. 

Cadmium, lead, and zinc were again detected at concentrations that exceeded the Wildlife FoodChain Benchmarks for the Northern bobwhite and/or the white-footed mouse as identified above 

with an asterisk (*). Fourteen constituents including ten BNAs and four metals (all essential 

nutrients) did not have ecological benchmarks from which to compare detected soil 

concentrations in the Tar Burn Area.

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EPA Region 6 and TCEQ background soil screening values were exceeded by numerous metals 

at the Tar Burn Area. Eighteen metals also exceeded site-specific background area screening 

levels. 

5.1.1.6 Lauren Tank Farm 

The complete soil screening results for the Lauren Tank Farm are presented in Table 5-6. 

COPEC that were identified at the Lauren Tank Farm are presented below. Average and 

maximum detected concentrations that exceeded their SBVs can be summarized from Table 5-6 

as follows: 

Maximum and Average Maximum Only Average Only 

Anthracene Benzo(a)anthracene 

Benzo(a)pyrene Benzo(b)fluoranthene 

Fluoranthene Benzo(k)fluoranthene 

Naphthalene Chrysene 

Phenanthrene Indeno(1,2,3-cd)pyrene 

Pyrene 

Aluminum 

Antimony 

Arsenic 

Barium 

Beryllium 

Cadmium* 

Chromium* 

Cobalt 

Copper* 

Iron 

Lead* 

Manganese 

Mercury 

Nickel 

Selenium 

Silver 

Thallium 

Vanadium 

Zinc* 

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Literature-based SBVs were exceeded by multiple constituents for average and/or maximum 

concentrations including eleven BNAs and eighteen metals. There were no constituents in which 

the average was the only concentration exceeding a benchmark. 

Cadmium, chromium, copper, lead, and zinc were detected at concentrations that exceeded the 

Wildlife Food-Chain Benchmarks for the Northern bobwhite and/or the white-footed mouse as 

identified above with an asterisk (*). Fourteen constituents including ten BNAs and four metals 

(all essential nutrients) did not have ecological benchmarks from which to compare detected 

surface soil concentrations in the Lauren Tank Farm Area. 

EPA Region 6 and TCEQ background soil screening values were exceeded by numerous metals 

within the Lauren Tank Farm. Seventeen metals also exceeded site-specific background area 

screening values. 

5.1.1.7 Nonsource Areas 

The investigation of the Nonsource Areas focused on targeting none of the areas that were 

associated with a specific source of contamination. The samples from the Nonsource Areas were 

collected randomly across the SMS Site to assess whether contamination within the surface soil 

was contained to a specific area or had migrated to other areas of the site and to determine if this 

“non source” contamination was adversely affecting the site ecology. The complete soil 

screening results for the Nonsource Areas are presented in Table 5-7. COPEC that were 

identified within the Nonsource Areas are presented below. Average and maximum detected 

concentrations for COPECs that exceeded their SBVs can be summarized from Table 5-7 as 

follows: 

Maximum and Average Maximum Only Average Only 

Anthracene Benzo(a)anthracene 

Benzo(a)pyrene Benzo(b)fluoranthene 

Fluoranthene Benzo(k)fluoranthene 

Naphthalene Chrysene 

Phenanthrene Dibenzo(a,h)anthracene 

Pyrene Indeno(1,2,3-cd)pyrene 

Aluminum Cobalt 

Antimony 

Arsenic 

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Maximum and Average Maximum Only Average Only 

Barium 

Beryllium 

Cadmium* 

Chromium* 

Copper* 

Iron 

Lead* 

Manganese 

Mercury 

Nickel 

Selenium 

Silver 

Thallium 

Vanadium 

Zinc* 

Literature-based SBVs were exceeded by multiple constituents for average and/or maximum 

concentrations including twelve BNAs and eighteen metals. There were no constituents in which 

the average was the only concentration exceeding a benchmark. 

Cadmium, chromium, copper, lead, and zinc were all detected at concentrations that exceeded 

the Wildlife Food-Chain Benchmarks for the Northern bobwhite and/or the white-footed mouse 

as identified above with an asterisk (*). A total of 14 constituents including ten BNAs and four 

metals (all essential nutrients) did not have ecological benchmarks from which to compare 

detected surface soil concentrations from the Nonsource Areas.

EPA Region 6 and TCEQ background soil screening values were exceeded by numerous metals 

within the Nonsource Areas. Twenty metals also exceeded site-specific background area 

screening levels. 

5.1.1.8 All Surface Soil - Upland Areas 

This section covers all surface soil samples collected from the upland area at SMS, including 

both source and nonsource sampling locations. All of the analytical results obtained from all 

surface sampling locations were combined into one exposure area (maximum and average). This 

approach allowed an overview and identification of contaminant exposure to the entire SMS Site 

versus exposure to individual source and nonsource areas. The screening results for the All 

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Surface Soils – Upland Areas can be referenced on Table 5-8. COPECs that were identified 

from evaluating all the surface soils are presented below. Average and maximum detected 

concentrations that exceeded their SBVs can be summarized from Table 5-8 as follows: 

Maximum and Average Maximum Only Average Only 

Anthracene Benzo(a)anthracene 

Benzo(a)pyrene Benzo(k)fluoranthene 

Benzo(b)fluoranthene Chrysene 

Fluoranthene Dibenzo(a,h)anthracene 

Naphthalene Indeno(1,2,3-cd)pyrene 

Pentachlorophenol Cobalt 

Phenanthrene 

Pyrene 

Aluminum 

Antimony 

Arsenic 

Barium 

Beryllium 

Cadmium* 

Chromium* 

Copper* 

Iron 

Lead* 

Manganese 

Mercury 

Nickel 

Selenium 

Silver 

Thallium 

Vanadium 

Zinc* 

Literature-based SBVs were exceeded by multiple constituents for average and/or maximum 

concentrations including thirteen BNAs and eighteen metals. There were no constituents in 

which the average was the only concentration exceeding a benchmark. 

Cadmium, chromium, copper, lead, and zinc were all detected at concentrations that exceeded 

the Wildlife Food-Chain Benchmarks for the Northern bobwhite and/or the white-footed mouse 

as identified above with an asterisk (*). A total of 15 constituents including eleven BNAs and 

four metals (all essential nutrients) did not have ecological benchmarks from which to compare 

detected surface soil concentrations from all locations. 

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EPA Region 6 and TCEQ background soil screening values were exceeded by numerous metals 

when compared to samples from all surface soils. Twenty metals also exceeded site-specific 

background area screening values. 

5.1.1.9 All Subsurface Soils - Upland Areas 

This section summarizes all subsurface soil samples collected from the upland area at SMS, 

including both source and nonsource sampling locations. All of the analytical results obtained 

from all subsurface sampling locations were combined into one exposure area (maximum and 

average). This approach allowed an overview and identification of contaminant exposure to the 

entire SMS Site versus separating out exposure into individual source and nonsource areas. The 

screening results for All Subsurface Soils – Upland Areas can be referenced on Table 5-9. 

COPEC that were identified from evaluating all subsurface soils are presented below. Average 

and maximum detected concentrations that exceeded their SBVs can be summarized from Table 

5-9 as follows: 

Maximum and Average Maximum Only Average Only 

Benzo(a)pyrene Anthracene 

Fluoranthene Naphthalene 

Pentachlorophenol 

Phenanthrene 

Pyrene 

Aluminum 

Antimony 

Arsenic 

Barium 

Beryllium 

Cadmium* 

Chromium 

Cobalt 

Copper 

Iron 

Lead* 

Manganese 

Mercury 

Nickel 

Silver 

Thallium 

Vanadium 

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Maximum and Average Maximum Only Average Only 

Zinc* 

Literature-based SBVs were exceeded by multiple constituents for average and/or maximum 

concentrations including seven BNAs and eighteen metals. There were two constituents 

(anthracene and naphthalene) in which the average was the only concentration which exceeded a 

benchmark. 

Cadmium, lead, and zinc were detected at concentrations that exceeded the Wildlife Food-Chain 

Benchmarks for the Northern bobwhite and/or the white-footed mouse as identified above with 

an asterisk (*). A total of 12 constituents including eight BNAs and four metals (all essential 

nutrients) did not have ecological benchmarks from which to compare detected subsurface soil 

concentrations from all locations. 

EPA Region 6 and TCEQ background soil screening values were exceeded by numerous metals 

from samples in all subsurface soils. Twenty metals also exceeded site-specific background area 

screening values. 

5.1.2 Sediment 

The sediment investigation at the SMS Site was conducted in Lake Sabine, adjacent to both the 

SMS Site and the Palmer Barge Line Site and was referred to as the “off-site” investigation area. 

The purpose of the investigation was to characterize the vertical and lateral extent of off-site 

sediment contamination within the area of influence from the site. The off-site area was broken 

into three subareas based on distance from the shoreline: intertidal, nearshore, and offshore. The 

intertidal area represented exposed sediments from the top of the bank along the shoreline to 

approximately the mean lower low water mark. The nearshore area was irregular in shape and 

encompassed both shallow sediments and those close to potential upland or on-site sources. 

Both surface and subsurface sediment samples were collected in the nearshore area. The 

offshore area was a rectangle approximately 150 to 200 ft wide paralleling the navigation 

channel and representing the area most heavily influenced by ship traffic. Samples were 

collected in all three off-site areas from the surface at 0 to 6 in. in depth. Subsurface samples 

were collected from only the nearshore area from depths up to a maximum of approximately 4 ft. 

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A complete summary of COPEC for all media at the SMS Site, including the off-site sediment, is 

presented in Table 5-17. 

The discussion below focuses on surface samples collected in the intertidal region, surface and 

subsurface samples collected in the nearshore area, surface samples collected in the offshore 

area, and all sampling locations grouped together in one exposure area. All sediment samples 

were analyzed for BNAs, metals, and Tributyltin (TBT). The average and maximum 

concentrations for each constituent were compared to SBVs in sediment and background 

screening values. All values were separated into four categories consisting of marine 

benchmarks, freshwater benchmarks, background area screening values, and simultaneously 

extracted metals/acid volatile sulfide (SEM/AVS) ratios. 

The marine benchmarks included the Calcasieu Estuary Investigation Baseline Ecological Risk 

Assessment (BERA) ER-M value, the BERA PEL value for saltwater, the NOAA Effects Range 

Low (ER-L) value, the NOAA Apparent Effects Threshold (AET) value, and the TCEQ 

Sediment Benchmarks for saltwater. 

The freshwater benchmarks included the BERA Freshwater Consensus Based Probable Effect 

Concentration (FWCONPEC), the NOAA PEL value for freshwater, and TCEQ sediment 

benchmarks for freshwater. 

The background area screening values were obtained using samples collected adjacent to the 

Sydnes Island during the WESTON RI (either a or b). The background screening values were 

only established for metals. 

The toxicity of divalent metals in sediments is directly related to the amount of sulfide present, 

as the metals form insoluble sulfides and are not bioavailable to ecological receptors. The ratio 

of SEM to AVS (presented as AVS/SEM) is used to determine whether metals in sediments are 

bound with sulfides or are not bound and therefore pose a threat to ecological receptors. 

AVS/SEM ratios below one are generally considered to be at non-toxic levels regardless of 

whether their benchmarks were exceeded, while ratios greater than one may show these metals to 

be present at levels indicative of toxicity. Cadmium, copper, lead, nickel, and zinc are the 

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divalent metals that show this direct sulfide relationship and will be discussed below if their 

average or maximum concentrations exceeded any of the benchmarks. 

5.1.2.1 Intertidal Area 

The complete sediment screening results for the Intertidal Area are presented in Table 5-10. The 

COPEC in the Intertidal Area, based on average and maximum detected concentrations 

exceeding their SBVs can be summarized from Table 5-10 as follows: 

Maximum and Average Maximum Only Average Only 

Acenaphthene* 2,4-Dimethylphenol 

Benzo(a)anthracene 2-Methylnaphthalene* 

Benzo(a)pyrene Anthracene 

Fluorene* Chrysene 

Hexachlorobutadiene Fluoranthene 

Naphthalene* LMW PAHs* 

Phenanthrene* HMW PAHs* 

Pyrene Total PAHs 

Antimony Chromium* 

Arsenic* Mercury* 

Barium 

Cadmium* 

Copper* 

Iron 

Lead*# 

Manganese 

Nickel* 

Selenium** 

Zinc*# 

The marine NOAA ER-L values were exceeded by multiple constituents in the Intertidal Area 

for average and/or maximum concentrations as identified with the asterisk (*) above. 

Constituents that exceeded their respective ER-Ls included several low and high molecular 

weight poly-aromatic hydrocarbons (LMW PAHs, HMW PAHs) and numerous metals. The 

marine NOAA ER-M values were exceeded by only the maximum detected concentrations for 

lead and zinc as indicated above with the number sign (#). 

Selenium was the only constituent that exceeded any of the Wildlife Bioaccumulation 

Benchmarks as identified with the double asterisks (**) above. All four of these benchmarks 

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(average and maximum BSAF) for the sandpiper and kingfisher were exceeded by both average 

and maximum concentrations for selenium. 

Multiple benchmarks including BERA, other NOAA values, and TCEQ marine and freshwater 

sediment values were also exceeded by one or more of the above constituents. The sediment 

samples collected in the Intertidal Area also showed that nineteen metals exceeded their 

respective background area screening values. There were no constituents in which the average 

was the only concentration exceeding a benchmark. Thirty-three constituents, including 

32 BNAs and one metal (cyanide), did not have ecological benchmarks from which to compare 

detected surface sediment concentrations in the Intertidal Area. 

Of the divalent metals that exceeded ER-Ls, only lead and zinc showed AVS/SEM ratios 

indicative of toxicity. However, both the AVS/SEM ratios for lead and zinc were only slightly 

elevated with lead at a ratio of 1.005 and zinc at a ratio of 1.64. Neither cadmium, copper, nor 

nickel showed AVS/SEM ratios above 1.0. 

5.1.2.2 Surface Nearshore Area 

The complete sediment screening results for surface sediments in the Nearshore Area are 

presented on Table 5-11. The COPECs in the Nearshore Area, based on average and maximum 

detected concentrations exceeding their SBVs can be summarized from Table 5-11 as follows: 

Maximum and Average Maximum Only Average Only 

Benzo(a)pyrene* 2-Methylnaphthalene* 

Pyrene* Acenaphthene* 

Barium Acenaphthylene* 

 Anthracene* 

 Benzo(a)anthracene 

 Chrysene* 

 Dibenzo(a,h)anthracene* 

 Fluoranthene 

 Fluorene* 

 Phenanthrene 

 LMW PAHs* 

 HMW PAHs* 

 Total PAHs* 

 Arsenic* 

 Cadmium 

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Maximum and Average Maximum Only Average Only 

 Iron 

 Manganese 

 Nickel* 

The marine NOAA ER-L values were exceeded by multiple constituents in the surface sediments 

of the Nearshore Area for average and/or maximum concentrations as identified with the asterisk 

(*) above. Constituents that exceeded their respective ER-Ls included several low and high 

molecular weight PAHs and two metals. Benzo(a)pyrene and pyrene showed only maximum 

concentrations that exceeded the NOAA ER-Ls. No constituents exceeded the marine NOAA 

ER-M values or Wildlife Bioaccumulation Benchmarks in the Nearshore Area. 

Multiple benchmarks including BERA, other NOAA values, and TCEQ marine and freshwater 

sediment values were also exceeded by one or more of the above constituents. Nineteen of the 

metals that were collected in the surface Nearshore Area were detected at concentrations that 

exceeded the background area screening values. 

There were no constituents in which the average was the only concentration exceeding a 

benchmark. None of the divalent metals were indicative of toxicity, as their AVS/SEM ratios 

were all below 1.0. Six BNAs did not have ecological benchmarks from which to compare 

detected surface sediment concentrations in the Nearshore Area. 

5.1.2.3 Subsurface Nearshore Area 

The complete sediment screening results for subsurface sediments in the Nearshore Area are 

presented in Table 5-12. The COPECs in the subsurface Nearshore Area, based on average and 

maximum detected concentrations exceeding their SBVs can be summarized from Table 5-12 as 

follows: 

Maximum and Average Maximum Only Average Only 

Benzo(a)anthracene Benzo(a)pyrene 

Chrysene Phenanthrene 

Fluoranthene Arsenic* 

Pyrene Manganese 

Barium 

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The marine NOAA ER-L value for arsenic was the only COPEC exceeded by the maximum 

concentration; this is identified by the asterisk (*) in the table above. No other constituents were 

detected at concentrations exceeding the NOAA ER-M values nor the Wildlife Bioaccumulation 

Benchmarks in subsurface sediments in the Nearshore Area. 

Other benchmarks including NOAA AET values and TCEQ sediment benchmarks for marine 

and freshwater were also exceeded by one or more of the above constituents including several 

PAHs and two metals. Nineteen metals were detected at concentrations that exceeded their 

respective background area screening values. Four constituents including three BNAs and one 

metal (cyanide) did not have ecological benchmarks from which to compare detected subsurface 

sediment concentrations in the Nearshore Area. 

5.1.2.4 Offshore Area 

The complete sediment screening results for surface sediments in the Offshore Area are 

presented on Table 5-13. The COPEC in the Offshore Area, based on average and maximum 

detected concentrations exceeding their SBVs can be summarized from Table 5-13 as follows: 

Maximum and Average Maximum Only Average Only 

Benzo(a)pyrene 

Arsenic* 

Barium 

Manganese 

The marine NOAA ER-L value was again exceeded by the maximum concentration for arsenic; 

this is identified by the asterisk (*) in the table above. Arsenic’s maximum and average 

concentrations also exceeded the freshwater TCEQ sediment benchmark. No constituents were 

detected at concentration exceeding the NOAA ER-M values nor the Wildlife Bioaccumulation 

Benchmarks in the Offshore Area. 

Barium, manganese, and benzo(a)pyrene exceeded NOAA AET values or marine and freshwater 

TNRCC benchmarks. There were no constituents in which the average was the only 

concentration exceeding a benchmark. Eighteen metals were also detected at concentrations that 

exceeded their background area screening values. Four BNAs did not have ecological 

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benchmarks from which to compare detected surface sediment concentrations in the Offshore 

Area. 

Nickel and zinc were the divalent metals that showed AVS/SEM ratios indicative of toxicity. 

Nickel showed an average AVS/SEM ratio of 1.553 and zinc showed an average AVS/SEM ratio 

of 2.62. However, none of the divalent metals concentrations exceeded their benchmarks for the 

Offshore Area. 

5.1.2.5 All Locations 

The complete sediment screening results for surface sediments from All Locations are presented 

in Table 5-14. The COPECs for All Locations, based on average and maximum detected 

concentrations exceeding their SBVs can be summarized from Table 5-14 as follows: 

Maximum and Average Maximum Only Average Only 

Benzo(a)pyrene* 2,4-Dimethylphenol 

Hexachlorobutadiene 2-Methylnaphthalene* 

Pyrene* Acenaphthene* 

Arsenic* Acenaphthylene* 

Barium Anthracene* 

Iron Benzo(a)anthracene 

Chrysene* 

Dibenzo(a,h)anthracene* 

Fluoranthene 

Fluorene* 

Naphthalene* 

Phenanthrene* 

LMW PAHs* 

HMW PAHs* 

Total PAHs* 

Antimony 

Cadmium* 

Chromium* 

Copper*# 

Lead*# 

Manganese 

Mercury* 

Nickel* 

Selenium** 

Zinc** 

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The marine NOAA ER-L values were exceeded by multiple constituents for both average and/or 

maximum concentrations as identified with the asterisk (*) above. Constituents that exceeded 

their respective ER-Ls included several low- and high-molecular weight PAHs and numerous 

metals. Benzo(a)pyrene, pyrene, and arsenic showed maximum concentrations in excess of their 

NOAA ER-L values. Maximum and average concentrations for these constituents were in 

excess of the freshwater TCEQ sediment benchmarks as well. Maximum concentrations of 

copper and lead exceeded both the marine ER-L (*) and ER-M values (#). 

Maximum concentrations of zinc and selenium exceeded the Wildlife Bioaccumulation 

Benchmarks as indicated by the double asterisk (**) above. Zinc concentrations exceeded only 

the maximum BSAF calculated for the sandpiper and kingfisher. Selenium concentrations 

exceeded both the maximum and average BSAF calculated for the sandpiper and kingfisher. 

Multiple benchmarks including BERA, other NOAA values, and marine and freshwater TCEQ 

benchmarks for sediment were exceeded by one or more of the above constituents. Maximum 

and average concentrations for nineteen metals exceeded their background area screening values. 

There were no constituents in which the average was the only concentration exceeding a 

benchmark. Thirty-three constituents, including 32 BNAs and one metal (cyanide), did not have 

ecological benchmarks from which to compare detected sediment concentrations. 

None of the divalent metals showed AVS/SEM ratios in excess of 1.0. 

5.1.3 Groundwater 

A complete summary of COPEC for all media at the SMS Site, including the groundwater, is 

presented in Table 5-17. 

Six monitoring wells were installed at three different locations within the upland area of the SMS 

Site (see Figure 3-2). A pair of shallow and deep monitoring wells was installed at each location 

(SM061, SM068, and SM116). An “A” following the well location identifies the deep wells 

(down to 60 ft) and a “B” identifies the shallow wells (down to 30 ft). Groundwater samples 

were collected from each monitoring well during two separate sampling events, one in October 

2001 and one in June 2002. October samples were analyzed for BNAs, metals, butyl-tins, and 

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Volatile Organic Compounds (VOCs) while June 2002 samples were analyzed only for total and 

dissolved metals (no butyl-tins or cyanide). The detected concentrations of each constituent 

from both rounds of sampling were compared to the groundwater ecological SBVs to assess 

possible impacts from the discharge of groundwater to surface waters in Lake Sabine as the most 

likely ecological exposure pathway to the groundwater. For purposes of assessing these impacts, 

a factor of 10 was first applied to the groundwater SBVs. This methodology was discussed with 

NOAA’s Coastal Resource Manager, Ron Gouguet, during work plan and scoping meetings on 

the SMS Site as an approach to assessing possible ecologically related groundwater to surface 

water impacts. The appropriate reference for this methodology was cited from the NOAA 

SQuiRTs (Buchman, 1999). A complete summary of the ecological benchmarks that were used 

for screening upland groundwater is presented in Table 4-3. 

The discussion of results that follows below focuses on any obvious differences between the 

October and June sampling events. Results from individual wells within each station and 

between stations are contrasted in an effort to characterize possible differences within the 

shallow and deep groundwater zones and between the different sources areas. 

The complete groundwater screening results for the October 2001 sampling event are presented 

in Table 5-15. Screening results (presented as risk ratios) for the June 2001 sampling event are 

presented for both total and dissolved metal concentrations in Table 5-16. 

5.1.3.1 October 2001 

The groundwater COPECs from the October 2001 sampling event can be summarized from the 

benchmarks that were exceeded in Table 5-15 as follows: 

SM061 SM068 SM116 

Constituents MW061A MW061B MW068A MW068B MW116A MW116B 

Di-n-butylphthalate X X 

Aluminum X X X 

Barium X X X X X X 

Beryllium X X X X 

Calcium* X X X X X 

Iron* X X X 

Lead X X X 

Magnesium* X X X X X X 

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SM061 SM068 SM116 

Constituents MW061A MW061B MW068A MW068B MW116A MW116B 

Manganese X X X 

Potassium* X X X 

Sodium* X X 

trans-1,3-Dichloropropene X 

Constituents considered to be COPECs are identified with an “X” for each of the wells shown 

above. Although the concentrations from a number of “naturally occurring and essential 

elements” (*) were detected in excess of their respective screening benchmarks at a number of 

wells, they are not considered legitimate COPECs because of their limited toxicities at naturally 

occurring levels in the groundwater. 

Differences between station locations indicate a “slight” possibility of higher concentrations 

occurring at station SM061. No obvious differences are apparent between shallow “A” wells 

and the deeper “B” wells based on the results from the October 2001 sampling event. Ten 

constituents including three butyl-tins, two BNAs, and five VOCs did not have ecological 

benchmarks from which to compare detected concentrations. 

5.1.3.2 June 2002 

The metals results from the June 2002 sampling event can be summarized from the ecological 

groundwater SBVs that were exceeded on Table 5-16 as follows: 

SM061 SM068 SM116 

Constituents MW061A MW061B MW068A MW068B MW116A MW116B 

Totals 

Barium X X X X X X 

Calcium* X 

Iron* X 

Magnesium* X X X X X X 

Manganese X X X 

Potassium* X X X X X 

Sodium* X X X X 

Dissolved 

Barium X X X X X X 

Magnesium* X X X X X X 

005045
Weston Solutions, Inc. – Final Ecological Screening Risk Assessment 

CHARACTERIZATION OF RISK SCREENING 

H:\STATE MARINE\RI REPORT (FINAL)\APPENDIX D (ECOLOGICAL RISK ASSESSMENT)\TEXT\ECORA.DOC 5/8/03 

5-23

SM061 SM068 SM116 

Constituents MW061A MW061B MW068A MW068B MW116A MW116B 

Manganese X X X 

Potassium* X X X X 

Sodium* X X X 

Constituents considered to be COPEC are identified with an “X” for each of the wells above. No 

obvious differences are present between shallow and deep wells except for possibly SM116 

where several benchmarks were exceeded in the shallow well but not in the deeper well. There 

also does not appear to be any major differences between the different station locations. A 

significant number of constituents including aluminum, beryllium, iron, and lead were dropped 

from the COPECs list during the June 2002 sampling event when compared to the same results 

from the October 2001 sampling event. In the June sampling event, barium and the “naturally 

occurring and essential elements” of calcium, magnesium, potassium, and sodium were retained 

as COPECs. The only significant difference between the total and dissolved concentrations 

within the June sampling event was the loss of calcium and iron from the dissolved fraction. 

However, as noted in Table 5-16, the risk ratios for all the COPECs, except for barium and 

magnesium, were considered to be minimal for this screening evaluation (less than 10). 

005046
Northern Bobwhitee White-footed Mous

2-Methylnaphthalene BNA mg/kg 2.91E-01 1.10E-01 -- -- -- 

Acenaphthene BNA mg/kg 1.40E-01 1.10E-01 2.00E+01 -- -- Acenaphthylene BNA mg/kg 5.74E-01 1.80E+00 -- -- -- Acetophenone BNA mg/kg 3.52E-01 4.80E-02 -- -- -- 

Anthracene BNA mg/kg 6.87E-01 2.00E+00 1.00E-01 -- -- Benzaldehyde BNA mg/kg 3.51E-01 4.00E-02 -- -- -- 

Benzo(a)anthracene BNA mg/kg 6.08E-01 2.00E+00 1.20E+00 -- -- 

Benzo(a)pyrene BNA mg/kg 5.94E-01 1.90E+00 1.00E-01 -- -- Benzo(b)fluoranthene BNA mg/kg 8.49E-01 3.00E+00 1.20E+00 -- -- 

Benzo(g,h,i)perylene BNA mg/kg 8.28E-01 2.50E+00 -- -- -- 

Benzo(k)fluoranthene BNA mg/kg 3.10E-01 1.10E+00 1.20E+00 -- -- 

bis(2-Ethylhexyl)phthalate BNA mg/kg 3.66E+00 4.90E+00 -- -- -- 

Carbazole BNA mg/kg 2.02E-01 6.30E-01 -- -- -- 

Chrysene BNA mg/kg 1.10E+00 3.80E+00 1.20E+00 -- -- 

Dibenz(a,h)anthracene BNA mg/kg 1.74E-01 2.40E-01 1.20E+00 -- -- 

Dibenzofuran BNA mg/kg 1.67E-01 6.90E-02 -- -- -- 

Di-n-octylphthalate BNA mg/kg 3.93E-01 1.80E-01 -- -- -- 

Fluoranthene BNA mg/kg 8.27E-01 2.50E+00 1.00E-01 -- -- Fluorene BNA mg/kg 1.75E-01 1.70E-01 3.00E+01 -- -- 

Indeno(1,2,3-cd)pyrene BNA mg/kg 3.76E-01 1.00E+00 1.20E+00 -- -- 

Naphthalene BNA mg/kg 2.05E-01 1.70E-01 1.00E-01 -- -- Phenanthrene BNA mg/kg 4.20E-01 1.40E+00 1.00E-01 -- -- 

Pyrene BNA mg/kg 9.29E-01 2.80E+00 1.00E-01 -- -- Aluminum METAL mg/kg 1.54E+04 2.06E+04 5.00E+00 -- -- 

Antimony METAL mg/kg 4.20E+00 2.05E+01 5.00E-01 -- -- 

Arsenic METAL mg/kg 5.86E+00 7.40E+00 2.50E-01 -- -- 

Barium METAL mg/kg 3.49E+02 5.34E+02 5.00E+00 -- -- 

Beryllium METAL mg/kg 4.83E-01 5.70E-01 1.00E-01 -- -- 

Cadmium METAL mg/kg 2.68E-01 8.30E-01 2.00E-01 3.85E+01 4.14E-01 

Calcium METAL mg/kg 8.68E+03 1.19E+04 -- -- -- Chromium METAL mg/kg 1.62E+01 2.74E+01 4.00E-01 5.36E+01 1.02E+06 

Cobalt METAL mg/kg 5.08E+00 6.90E+00 2.00E+01 -- -- 

Copper METAL mg/kg 5.90E+01 9.86E+01 1.00E+00 1.87E+03 4.13E+02 Cyanide, Total METAL mg/kg 1.85E-01 4.80E-01 9.00E-01 -- -- 

Iron METAL mg/kg 2.19E+04 3.40E+04 2.00E+02 -- -- 

Lead METAL mg/kg 1.23E+02 2.10E+02 4.60E+00 1.91E+00 5.55E+00 

Magnesium METAL mg/kg 1.51E+03 1.73E+03 -- -- -- 

Manganese METAL mg/kg 3.08E+02 3.91E+02 1.00E+02 -- -- 

Mercury METAL mg/kg 9.74E-02 1.60E-01 5.10E-04 2.51E+02 1.93E+02 

Nickel METAL mg/kg 4.71E+01 5.38E+01 2.50E+01 5.11E+03 1.07E+04 

Potassium METAL mg/kg 1.06E+03 1.22E+03 -- -- -- 

Silver METAL mg/kg 1.46E+00 2.60E+00 2.00E-02 -- -- 

Sodium METAL mg/kg 4.67E+02 7.23E+02 -- -- -- Vanadium METAL mg/kg 1.88E+01 2.64E+01 2.00E+00 -- -- 

Zinc METAL mg/kg 2.76E+02 4.38E+02 9.00E-01 3.59E+03 2.15E+02 

Notes:

a Average concentration represent an average of all surface soil concentrations from all locations within the defined exposure area and is based on either the 95%UCL or the arithmetic average if the 95%UCL was less than the arithmetic average or greater than maximum 

Table 5-1

Surface Soil Ecological Screening Results (Waste Water Impoundment Area)

Maximum 

Concentrationb Constituents Data Group Units

Average 

Concentrationa

Literature-Based 

Screeing Benchmark 

Valuesc

Wildlife Food-Chain Benchmarksd

5/6/2003: 10:58 AM 

005047
Northern Bobwhitee White-footed Mous

Table 5-1

Surface Soil Ecological Screening Results (Waste Water Impoundment Area)

Maximum 

Concentrationb Constituents Data Group Units

Average 

Concentrationa

Literature-Based 

Screeing Benchmark 

Valuesc

Wildlife Food-Chain Benchmarksd

b Maximum concentration represents the highest detected surface soil concentration from a single location. Some constituents with a high degree of non-detects have average concentrations that exeed the maximum detected concentration.c Literature-based screening benchmarks represents the lowest value that was available from the following sources: TCEQ (2001); EPA (2000); ORNL (1997); Friday (1998); EPA (1999).d Site-specific food chain benchmarks for wildlife were derived for only those constituents determined to be bioaccumulative in terrestrial soils according to criteria outlined by the State of Texas (TCEQ, 2001).e The northern bobwhite quail was selected as a target receptor for assessing wildlife food-chain effects based on the type of habitat this species is expected to inhabitat and the type of habitat found at the SMS Site and the adjacent Sabine Lake wetlands.e The white-footed mouse was selected as a target receptor for assessing wildlife food-chain effects based on the type of habitat this species is expected to inhabitat and the type of habitat found at the SMS Site and the adjacent Sabine Lake wetlands.g Lower and upper range background concentrations taken from EPA Region 6 Medium-Specific Screening Level Guidance (9/2001; http://www.epa.gov/earth1r6/6pd/rcra_c/pd-n/screen.htm)h Texas-specific median background concentrations taken from the Texas Risk Reduction Program (TRRP) Guidance [Figure 30 TAC 350.51(m)].i Site-specific background screening values were calculated using the arithmetic mean for constituents with 100% frequency of detection or the maximum detected concentration for constituents with less than 100% frequency of detection. Background surface soils wer

Bolded values indicate that the maximum detected concentration exceeded this benchmark.Boxed and bolded values indicate that both the average and the maximum detected concentration exceeded this benchmark.Boxed values indicate that only the average concentration exceeded this benchmark. This is due to a high degree of non-detect samples in the dataset (see above).-- = Benchmarks were not available for these constituents.NA = Constituent was not detected at any of the background locations and therefore a background concentration could not be established.Constituents include sample results from the WESTON 2001 Remedial Investigation (RI).

5/6/2003: 10:58 AM 

005048
Northern Bobwhitee White-footed Mousef 

1,1'-Biphenyl BNA mg/kg 1.38E-01 2.50E-02 6.00E+01 -- -- 2-Methylnaphthalene BNA mg/kg 1.81E-01 2.20E-01 -- -- -- 4-Methylphenol (p-Cresol) BNA mg/kg 1.80E-01 2.30E-02 5.00E-01 -- -- Acenaphthene BNA mg/kg 1.05E-01 8.50E-02 2.00E+01 -- -- Acenaphthylene BNA mg/kg 2.97E-01 3.50E-01 -- -- -- Acetophenone BNA mg/kg 1.59E-01 1.20E-01 -- -- -- 

Anthracene BNA mg/kg 1.91E-01 4.50E-01 1.00E-01 -- -- 

Benzaldehyde BNA mg/kg 1.42E-01 5.10E-02 -- -- -- 

Benzo(a)anthracene BNA mg/kg 2.72E-01 8.30E-01 1.20E+00 -- -- 

Benzo(a)pyrene BNA mg/kg 2.48E-01 6.50E-01 1.00E-01 -- -- 

Benzo(b)fluoranthene BNA mg/kg 8.02E-01 1.10E+00 1.20E+00 -- -- 

Benzo(g,h,i)perylene BNA mg/kg 2.36E-01 2.40E-01 -- -- -- 

Benzo(k)fluoranthene BNA mg/kg 2.56E-01 3.40E-01 1.20E+00 -- -- 

Carbazole BNA mg/kg 1.22E-01 1.30E-01 -- -- -- 

Chrysene BNA mg/kg 4.34E-01 1.30E+00 1.20E+00 -- -- 

Dibenz(a,h)anthracene BNA mg/kg 9.49E-02 1.00E-01 1.20E+00 -- -- Dibenzofuran BNA mg/kg 1.43E-01 3.30E-02 -- -- -- 

Di-n-octylphthalate BNA mg/kg 1.79E-01 3.30E-02 -- -- -- Fluoranthene BNA mg/kg 5.75E-01 2.20E+00 1.00E-01 -- -- Fluorene BNA mg/kg 1.61E-01 9.70E-02 3.00E+01 -- -- 

Indeno(1,2,3-cd)pyrene BNA mg/kg 1.77E-01 4.20E-01 1.20E+00 -- -- Naphthalene BNA mg/kg 1.61E-01 1.20E-01 1.00E-01 -- -- 

Phenanthrene BNA mg/kg 2.94E-01 1.10E+00 1.00E-01 -- -- 

Pyrene BNA mg/kg 4.90E-01 1.60E+00 1.00E-01 -- -- Aluminum METAL mg/kg 9.76E+03 1.11E+04 5.00E+00 -- -- 

Antimony METAL mg/kg 4.51E+00 5.70E+00 5.00E-01 -- -- 

Arsenic METAL mg/kg 8.83E+00 1.04E+01 2.50E-01 -- -- Barium METAL mg/kg 2.47E+02 2.92E+02 5.00E+00 -- -- 

Beryllium METAL mg/kg 9.04E-01 9.80E-01 1.00E-01 -- -- 

Cadmium METAL mg/kg 9.07E-01 1.10E+00 2.00E-01 3.85E+01 4.14E-01 

Calcium METAL mg/kg 8.50E+03 1.04E+04 -- -- -- 

Chromium METAL mg/kg 2.32E+01 2.56E+01 4.00E-01 5.36E+01 1.02E+06 

Cobalt METAL mg/kg 8.94E+00 9.80E+00 2.00E+01 -- -- 

Copper METAL mg/kg 9.50E+01 2.99E+02 1.00E+00 1.87E+03 4.13E+02 

Cyanide, Total METAL mg/kg 1.54E-01 2.10E-01 9.00E-01 -- -- 

Iron METAL mg/kg 4.73E+04 4.84E+04 2.00E+02 -- -- 

Lead METAL mg/kg 1.32E+02 1.50E+02 4.60E+00 1.91E+00 5.55E+00 

Magnesium METAL mg/kg 2.39E+03 2.85E+03 -- -- -- Manganese METAL mg/kg 4.55E+02 5.28E+02 1.00E+02 -- -- Mercury METAL mg/kg 2.71E-01 9.80E-01 5.10E-04 2.51E+02 1.93E+02 

Nickel METAL mg/kg 3.69E+01 4.41E+01 2.50E+01 5.11E+03 1.07E+04 

Potassium METAL mg/kg 1.37E+03 1.51E+03 -- -- -- 

Selenium METAL mg/kg 7.49E-01 7.70E-01 5.00E-02 2.48E+01 7.46E+00 

Silver METAL mg/kg 1.09E+00 1.40E+00 2.00E-02 -- -- 

Sodium METAL mg/kg 1.33E+03 1.51E+03 -- -- -- 

Thallium METAL mg/kg 8.83E-01 2.20E+00 1.00E-02 -- -- 

Vanadium METAL mg/kg 2.52E+01 2.62E+01 2.00E+00 -- -- 

Table 5-2

Surface Soil Ecological Screening Results (Waste Water Treatment Facility)

Maximum 

Concentrationb Constituents Data Group Units

Average 

Concentrationa

Literature-Based 

Screeing Benchmark 

Valuesc

Wildlife Food-Chain Benchmarksd

5/5/2003: 5:05 PM 

005049
Northern Bobwhitee White-footed Mousef 

Table 5-2

Surface Soil Ecological Screening Results (Waste Water Treatment Facility)

Maximum 

Concentrationb Constituents Data Group Units

Average 

Concentrationa

Literature-Based 

Screeing Benchmark 

Valuesc

Wildlife Food-Chain Benchmarksd

Zinc METAL mg/kg 6.80E+02 9.08E+02 9.00E-01 3.59E+03 2.15E+02 

Notes:

a Average concentration represent an average of all surface soil concentrations from all locations within the defined exposure area and is based on either the 95%UCL or the arithmetic average if the 95%UCL was less than the arithmetic average or greater than maximb Maximum concentration represents the highest detected surface soil concentration from a single location. Some constituents with a high degree of non-detects have average concentrations that exeed the maximum detected concentration.c Literature-based screening benchmarks represents the lowest value that was available from the following sources: TCEQ (2001); EPA (2000); ORNL (1997); Friday (1998); EPA (1999).d Site-specific food chain benchmarks for wildlife were derived for only those constituents determined to be bioaccumulative in terrestrial soils according to criteria outlined by the State of Texas (TCEQ, 2001).e The northern bobwhite quail was selected as a target receptor for assessing wildlife food-chain effects based on the type of habitat this species is expected to inhabitat and the type of habitat found at the SMS Site and the adjacent Sabine Lake wetlands.e The white-footed mouse was selected as a target receptor for assessing wildlife food-chain effects based on the type of habitat this species is expected to inhabitat and the type of habitat found at the SMS Site and the adjacent Sabine Lake wetlands.g Lower and upper range background concentrations taken from EPA Region 6 Medium-Specific Screening Level Guidance (9/2001; http://www.epa.gov/earth1r6/6pd/rcra_c/pd-n/screen.htm)h Texas-specific median background concentrations taken from the Texas Risk Reduction Program (TRRP) Guidance [Figure 30 TAC 350.51(m)].i Site-specific background screening values were calculated using the arithmetic mean for constituents with 100% frequency of detection or the maximum detected concentration for constituents with less than 100% frequency of detection. Background surface soils w

Bolded values indicate that the maximum detected concentration exceeded this benchmark.Boxed and bolded values indicate that both the average and the maximum detected concentration exceeded this benchmark.Boxed values indicate that only the average concentration exceeded this benchmark. This is due to a high degree of non-detect samples in the dataset (see above).-- = Benchmarks were not available for these constituents.NA = Constituent was not detected at any of the background locations and therefore a background concentration could not be established.Constituents include sample results from the WESTON 2001 Remedial Investigation (RI).

5/5/2003: 5:05 PM 

005050
Northern Bobwhitee White-footed Mousef 

1,1'-Biphenyl BNA mg/kg 1.80E-01 4.00E-02 6.00E+01 -- -- 

2-Methylnaphthalene BNA mg/kg 1.37E-01 1.10E-01 -- -- -- 

4-Methylphenol (p-Cresol) BNA mg/kg 1.81E-01 4.60E-02 5.00E-01 -- -- 

Acenaphthene BNA mg/kg 2.96E-01 4.60E-01 2.00E+01 -- -- 

Acenaphthylene BNA mg/kg 1.63E-01 1.80E-01 -- -- -- 

Acetophenone BNA mg/kg 1.01E-01 4.90E-02 -- -- -- 

Anthracene BNA mg/kg 3.18E-01 1.50E+00 1.00E-01 -- -- Benzaldehyde BNA mg/kg 9.44E-02 3.20E-02 -- -- -- 

Benzo(a)anthracene BNA mg/kg 5.07E-01 3.00E+00 1.20E+00 -- -- 

Benzo(a)pyrene BNA mg/kg 4.48E-01 2.70E+00 1.00E-01 -- -- Benzo(b)fluoranthene BNA mg/kg 7.22E-01 4.40E+00 1.20E+00 -- -- 

Benzo(g,h,i)perylene BNA mg/kg 9.55E-01 9.70E-01 -- -- -- Benzo(k)fluoranthene BNA mg/kg 3.21E-01 1.80E+00 1.20E+00 -- -- 

Butylbenzylphthalate BNA mg/kg 1.89E-01 3.00E-02 -- -- -- 

Carbazole BNA mg/kg 2.22E-01 2.30E-01 -- -- -- 

Chrysene BNA mg/kg 4.67E-01 2.80E+00 1.20E+00 -- -- 

Dibenz(a,h)anthracene BNA mg/kg 2.50E-01 3.30E-01 1.20E+00 -- -- Dibenzofuran BNA mg/kg 1.73E-01 1.80E-01 -- -- -- 

Fluoranthene BNA mg/kg 1.51E+00 1.00E+01 1.00E-01 -- -- 

Fluorene BNA mg/kg 3.16E-01 4.70E-01 3.00E+01 -- -- 

Indeno(1,2,3-cd)pyrene BNA mg/kg 1.97E-01 1.10E+00 1.20E+00 -- -- 

Naphthalene BNA mg/kg 1.32E-01 7.80E-02 1.00E-01 -- -- Pentachlorophenol BNA mg/kg 4.81E-01 2.80E-01 2.00E-03 -- -- 

Phenanthrene BNA mg/kg 6.25E-01 3.80E+00 1.00E-01 -- -- 

Pyrene BNA mg/kg 1.29E+00 8.40E+00 1.00E-01 -- -- 

Aluminum METAL mg/kg 1.52E+03 3.49E+03 5.00E+00 -- -- 

Antimony METAL mg/kg 1.66E+00 2.50E+00 5.00E-01 -- -- 

Arsenic METAL mg/kg 5.02E+00 7.90E+00 2.50E-01 -- -- 

Barium METAL mg/kg 2.73E+02 2.96E+02 5.00E+00 -- -- 

Beryllium METAL mg/kg 1.94E-01 3.10E-01 1.00E-01 -- -- 

Cadmium METAL mg/kg 2.88E-01 4.80E-01 2.00E-01 3.85E+01 4.14E-01 

Calcium METAL mg/kg 2.77E+03 8.86E+03 -- -- -- 

Chromium METAL mg/kg 2.08E+01 1.26E+02 4.00E-01 5.36E+01 1.02E+06 

Cobalt METAL mg/kg 2.97E+00 3.10E+00 2.00E+01 -- -- 

Copper METAL mg/kg 2.83E+01 3.67E+01 1.00E+00 1.87E+03 4.13E+02 

Cyanide, Total METAL mg/kg 1.73E-01 3.10E-01 9.00E-01 -- -- 

Iron METAL mg/kg 1.21E+04 1.45E+04 2.00E+02 -- -- 

Lead METAL mg/kg 9.88E+01 5.58E+02 4.60E+00 1.91E+00 5.55E+00 

Magnesium METAL mg/kg 6.21E+02 8.65E+02 -- -- -- Manganese METAL mg/kg 1.11E+02 3.79E+02 1.00E+02 -- -- 

Mercury METAL mg/kg 8.54E-02 1.30E-01 5.10E-04 2.51E+02 1.93E+02 

Nickel METAL mg/kg 4.73E+00 1.59E+01 2.50E+01 5.11E+03 1.07E+04 

Potassium METAL mg/kg 5.44E+02 8.16E+02 -- -- -- 

Silver METAL mg/kg 6.11E-01 9.60E-01 2.00E-02 -- -- 

Sodium METAL mg/kg 3.51E+02 5.12E+02 -- -- -- Vanadium METAL mg/kg 2.74E+01 3.10E+01 2.00E+00 -- -- 

Zinc METAL mg/kg 1.09E+02 4.84E+02 9.00E-01 3.59E+03 2.15E+02 

Notes:

Table 5-3

Surface Soil Ecological Screening Results (Current Above Ground Storage Tanks)

Maximum 

Concentrationb Constituents Data Group Units

Average 

Concentrationa

Literature-Based 

Screeing Benchmark 

Valuesc

Wildlife Food-Chain Benchmarksd

5/5/2003: 4:19 PM 

005051
Northern Bobwhitee White-footed Mousef 

Table 5-3

Surface Soil Ecological Screening Results (Current Above Ground Storage Tanks)

Maximum 

Concentrationb Constituents Data Group Units

Average 

Concentrationa

Literature-Based 

Screeing Benchmark 

Valuesc

Wildlife Food-Chain Benchmarksd

a Average concentration represent an average of all surface soil concentrations from all locations within the defined exposure area and is based on either the 95%UCL or the arithmetic average if the 95%UCL was less than the arithmetic average or greater than maximum b Maximum concentration represents the highest detected surface soil concentration from a single location. Some constituents with a high degree of non-detects have average concentrations that exeed the maximum detected concentration.c Literature-based screening benchmarks represents the lowest value that was available from the following sources: TCEQ (2001); EPA (2000); ORNL (1997); Friday (1998); EPA (1999).d Site-specific food chain benchmarks for wildlife were derived for only those constituents determined to be bioaccumulative in terrestrial soils according to criteria outlined by the State of Texas (TCEQ, 2001).e The northern bobwhite quail was selected as a target receptor for assessing wildlife food-chain effects based on the type of habitat this species is expected to inhabitat and the type of habitat found at the SMS Site and the adjacent Sabine Lake wetlands.e The white-footed mouse was selected as a target receptor for assessing wildlife food-chain effects based on the type of habitat this species is expected to inhabitat and the type of habitat found at the SMS Site and the adjacent Sabine Lake wetlands.g Lower and upper range background concentrations taken from EPA Region 6 Medium-Specific Screening Level Guidance (9/2001; http://www.epa.gov/earth1r6/6pd/rcra_c/pd-n/screen.htm)h Texas-specific median background concentrations taken from the Texas Risk Reduction Program (TRRP) Guidance [Figure 30 TAC 350.51(m)].i Site-specific background screening values were calculated using the arithmetic mean for constituents with 100% frequency of detection or the maximum detected concentration for constituents with less than 100% frequency of detection. Background surface soils were 

Bolded values indicate that the maximum detected concentration exceeded this benchmark.Boxed and bolded values indicate that both the average and the maximum detected concentration exceeded this benchmark.Boxed values indicate that only the average concentration exceeded this benchmark. This is due to a high degree of non-detect samples in the dataset (see above).-- = Benchmarks were not available for these constituents.NA = Constituent was not detected at any of the background locations and therefore a background concentration could not be established.Constituents include sample results from the WESTON 2001 Remedial Investigation (RI).

5/5/2003: 4:19 PM 

005052
Northern Bobwhitee White-footed Mousef 

2-Methylnaphthalene BNA mg/kg 2.22E-01 3.90E-02 -- -- -- 

Acenaphthylene BNA mg/kg 1.59E-01 1.10E-01 -- -- -- 

Acetophenone BNA mg/kg 2.17E-01 1.50E-02 -- -- -- 

Anthracene BNA mg/kg 2.76E-01 2.80E-01 1.00E-01 -- -- 

Benzaldehyde BNA mg/kg 1.22E-01 1.10E-02 -- -- -- 

Benzo(a)anthracene BNA mg/kg 1.67E-01 9.60E-02 1.20E+00 -- -- 

Benzo(a)pyrene BNA mg/kg 1.10E-01 1.30E-01 1.00E-01 -- -- Benzo(b)fluoranthene BNA mg/kg 2.46E-01 2.80E-01 1.20E+00 -- -- Benzo(g,h,i)perylene BNA mg/kg 1.32E-01 2.00E-01 -- -- -- 

Benzo(k)fluoranthene BNA mg/kg 1.68E-01 9.60E-02 1.20E+00 -- -- 

Butylbenzylphthalate BNA mg/kg 2.07E-01 1.60E-02 -- -- -- Carbazole BNA mg/kg 9.72E-02 2.90E-02 -- -- -- 

Chrysene BNA mg/kg 2.02E-01 1.70E-01 1.20E+00 -- -- 

Dibenz(a,h)anthracene BNA mg/kg 1.76E-01 3.50E-02 1.20E+00 -- -- Di-n-octylphthalate BNA mg/kg 2.34E-01 1.40E-01 -- -- -- 

Fluoranthene BNA mg/kg 2.25E-01 2.40E-01 1.00E-01 -- -- 

Indeno(1,2,3-cd)pyrene BNA mg/kg 9.90E-02 1.10E-01 1.20E+00 -- -- Naphthalene BNA mg/kg 2.19E-01 2.70E-02 1.00E-01 -- -- Phenanthrene BNA mg/kg 1.75E-01 1.20E-01 1.00E-01 -- -- Pyrene BNA mg/kg 1.41E-01 2.00E-01 1.00E-01 -- -- Aluminum METAL mg/kg 4.84E+03 5.66E+03 5.00E+00 -- -- 

Antimony METAL mg/kg 1.58E+00 5.80E+00 5.00E-01 -- -- 

Arsenic METAL mg/kg 1.45E+01 1.90E+01 2.50E-01 -- -- 

Barium METAL mg/kg 1.84E+02 2.56E+02 5.00E+00 -- -- 

Beryllium METAL mg/kg 2.36E-01 6.00E-01 1.00E-01 -- -- 

Cadmium METAL mg/kg 1.55E-01 2.00E-01 2.00E-01 3.85E+01 4.14E-01 

Calcium METAL mg/kg 7.12E+03 1.91E+04 -- -- -- Chromium METAL mg/kg 1.30E+01 3.25E+01 4.00E-01 5.36E+01 1.02E+06 

Cobalt METAL mg/kg 4.67E+00 5.30E+00 2.00E+01 -- -- 

Copper METAL mg/kg 4.64E+01 1.80E+02 1.00E+00 1.87E+03 4.13E+02 

Cyanide, Total METAL mg/kg 1.18E-01 1.50E-01 9.00E-01 -- -- 

Iron METAL mg/kg 2.18E+04 5.48E+04 2.00E+02 -- -- 

Lead METAL mg/kg 8.54E+01 2.90E+02 4.60E+00 1.91E+00 5.55E+00 

Magnesium METAL mg/kg 1.37E+03 1.73E+03 -- -- -- Manganese METAL mg/kg 1.86E+02 5.88E+02 1.00E+02 -- -- 

Mercury METAL mg/kg 9.80E-02 1.10E-01 5.10E-04 2.51E+02 1.93E+02 

Nickel METAL mg/kg 1.22E+01 3.63E+01 2.50E+01 5.11E+03 1.07E+04 

Potassium METAL mg/kg 1.51E+03 1.65E+03 -- -- -- Silver METAL mg/kg 2.38E+00 3.30E+00 2.00E-02 -- -- 

Sodium METAL mg/kg 8.97E+02 1.14E+03 -- -- -- Thallium METAL mg/kg 1.23E+00 1.60E+00 1.00E-02 -- -- 

Vanadium METAL mg/kg 1.04E+01 1.20E+01 2.00E+00 -- -- Zinc METAL mg/kg 1.55E+02 1.98E+02 9.00E-01 3.59E+03 2.15E+02 

Notes:

a Average concentration represent an average of all surface soil concentrations from all locations within the defined exposure area and is based on either the 95%UCL or the arithmetic average if the 95%UCL was less than the arithmetic average or greater than maximb Maximum concentration represents the highest detected surface soil concentration from a single location. Some constituents with a high degree of non-detects have average concentrations that exeed the maximum detected concentration.

Table 5-4

Surface Soil Ecological Screening Results (Maintenance Shed Area)

Maximum 

Concentrationb Constituents Data Group Units

Average 

Concentrationa

Literature-Based 

Screeing Benchmark 

Valuesc

Wildlife Food-Chain Benchmarksd

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005053
Northern Bobwhitee White-footed Mousef 

Table 5-4

Surface Soil Ecological Screening Results (Maintenance Shed Area)

Maximum 

Concentrationb Constituents Data Group Units

Average 

Concentrationa

Literature-Based 

Screeing Benchmark 

Valuesc

Wildlife Food-Chain Benchmarksd

c Literature-based screening benchmarks represents the lowest value that was available from the following sources: TCEQ (2001); EPA (2000); ORNL (1997); Friday (1998); EPA (1999).d Site-specific food chain benchmarks for wildlife were derived for only those constituents determined to be bioaccumulative in terrestrial soils according to criteria outlined by the State of Texas (TCEQ, 2001).e The northern bobwhite quail was selected as a target receptor for assessing wildlife food-chain effects based on the type of habitat this species is expected to inhabitat and the type of habitat found at the SMS Site and the adjacent Sabine Lake wetlands.e The white-footed mouse was selected as a target receptor for assessing wildlife food-chain effects based on the type of habitat this species is expected to inhabitat and the type of habitat found at the SMS Site and the adjacent Sabine Lake wetlands.g Lower and upper range background concentrations taken from EPA Region 6 Medium-Specific Screening Level Guidance (9/2001; http://www.epa.gov/earth1r6/6pd/rcra_c/pd-n/screen.htm)h Texas-specific median background concentrations taken from the Texas Risk Reduction Program (TRRP) Guidance [Figure 30 TAC 350.51(m)].i Site-specific background screening values were calculated using the arithmetic mean for constituents with 100% frequency of detection or the maximum detected concentration for constituents with less than 100% frequency of detection. Background surface soils w

Bolded values indicate that the maximum detected concentration exceeded this benchmark.Boxed and bolded values indicate that both the average and the maximum detected concentration exceeded this benchmark.Boxed values indicate that only the average concentration exceeded this benchmark. This is due to a high degree of non-detect samples in the dataset (see above).-- = Benchmarks were not available for these constituents.NA = Constituent was not detected at any of the background locations and therefore a background concentration could not be established.Constituents include sample results from the WESTON 2001 Remedial Investigation (RI).

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Northern Bobwhitee White-footed Mousef 

2-Methylnaphthalene BNA mg/kg 1.31E-01 4.20E-02 -- -- -- 

3,3'-Dichlorobenzidine BNA mg/kg 7.17E-01 8.10E-01 -- -- -- Acenaphthene BNA mg/kg 1.84E-01 3.50E-02 2.00E+01 -- -- 

Acenaphthylene BNA mg/kg 4.15E-01 4.50E-01 -- -- -- 

Acetophenone BNA mg/kg 6.23E-01 2.00E+00 -- -- -- 

Anthracene BNA mg/kg 3.78E-01 3.90E-01 1.00E-01 -- -- 

Benzaldehyde BNA mg/kg 1.66E+00 6.30E+00 -- -- -- Benzo(a)anthracene BNA mg/kg 8.51E-01 9.20E-01 1.20E+00 -- -- 

Benzo(a)pyrene BNA mg/kg 1.11E+00 1.20E+00 1.00E-01 -- -- 

Benzo(b)fluoranthene BNA mg/kg 6.85E-01 1.20E+00 1.20E+00 -- -- 

Benzo(g,h,i)perylene BNA mg/kg 4.58E-01 4.60E-01 -- -- -- 

Benzo(k)fluoranthene BNA mg/kg 1.39E+00 1.40E+00 1.20E+00 -- -- 

bis(2-Ethylhexyl)phthalate BNA mg/kg 1.37E+00 4.70E+00 -- -- -- 

Butylbenzylphthalate BNA mg/kg 4.85E-01 5.20E-01 -- -- -- 

Carbazole BNA mg/kg 1.69E-01 2.90E-01 -- -- -- 

Chrysene BNA mg/kg 9.83E-01 1.10E+00 1.20E+00 -- -- 

Dibenz(a,h)anthracene BNA mg/kg 2.16E-01 2.30E-01 1.20E+00 -- -- 

Dibenzofuran BNA mg/kg 1.86E-01 4.40E-02 -- -- -- 

Di-n-butylphthalate BNA mg/kg 2.24E-01 3.40E-02 2.00E+02 -- -- 

Fluoranthene BNA mg/kg 7.54E-01 1.90E+00 1.00E-01 -- -- Fluorene BNA mg/kg 1.49E-01 1.20E-01 3.00E+01 -- -- 

Indeno(1,2,3-cd)pyrene BNA mg/kg 7.18E-01 7.40E-01 1.20E+00 -- -- 

Naphthalene BNA mg/kg 1.34E-01 5.20E-02 1.00E-01 -- -- 

Phenanthrene BNA mg/kg 3.70E-01 9.30E-01 1.00E-01 -- -- 

Pyrene BNA mg/kg 1.41E+00 1.50E+00 1.00E-01 -- -- 

Aluminum METAL mg/kg 1.59E+04 1.79E+04 5.00E+00 -- -- Antimony METAL mg/kg 5.33E+00 6.00E+00 5.00E-01 -- -- 

Arsenic METAL mg/kg 6.45E+00 7.90E+00 2.50E-01 -- -- 

Barium METAL mg/kg 1.19E+02 1.46E+02 5.00E+00 -- -- 

Beryllium METAL mg/kg 5.08E-01 7.00E-01 1.00E-01 -- -- 

Cadmium METAL mg/kg 6.63E-01 1.10E+00 2.00E-01 3.85E+01 4.14E-01 

Calcium METAL mg/kg 2.84E+04 6.66E+04 -- -- -- 

Chromium METAL mg/kg 2.07E+01 2.25E+01 4.00E-01 5.36E+01 1.02E+06 

Cobalt METAL mg/kg 6.55E+00 6.70E+00 2.00E+01 -- -- 

Copper METAL mg/kg 1.37E+02 1.55E+02 1.00E+00 1.87E+03 4.13E+02 Cyanide, Total METAL mg/kg 2.12E-01 2.40E-01 9.00E-01 -- -- 

Iron METAL mg/kg 1.73E+04 1.82E+04 2.00E+02 -- -- Lead METAL mg/kg 3.20E+02 9.67E+02 4.60E+00 1.91E+00 5.55E+00 

Magnesium METAL mg/kg 1.92E+03 2.02E+03 -- -- -- Manganese METAL mg/kg 3.21E+02 4.13E+02 1.00E+02 -- -- Mercury METAL mg/kg 2.92E-01 3.10E-01 5.10E-04 2.51E+02 1.93E+02 

Nickel METAL mg/kg 2.44E+01 2.62E+01 2.50E+01 5.11E+03 1.07E+04 

Potassium METAL mg/kg 1.18E+03 1.88E+03 -- -- -- 

Silver METAL mg/kg 9.84E-01 1.00E+00 2.00E-02 -- -- 

Sodium METAL mg/kg 6.25E+02 6.39E+02 -- -- -- 

Thallium METAL mg/kg 8.13E-01 1.30E+00 1.00E-02 -- -- 

Vanadium METAL mg/kg 1.52E+01 1.70E+01 2.00E+00 -- -- 

Zinc METAL mg/kg 3.27E+02 4.24E+02 9.00E-01 3.59E+03 2.15E+02 

Table 5-5

Surface Soil Ecological Screening Results (Tar Burn Area )

Maximum 

Concentrationb Constituents Data Group Units

Average 

Concentrationa

Literature-Based 

Screeing Benchmark 

Valuesc

Wildlife Food-Chain Benchmarksd

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005055
Northern Bobwhitee White-footed Mousef 

Table 5-5

Surface Soil Ecological Screening Results (Tar Burn Area )

Maximum 

Concentrationb Constituents Data Group Units

Average 

Concentrationa

Literature-Based 

Screeing Benchmark 

Valuesc

Wildlife Food-Chain Benchmarksd

Notes:

a Average concentration represent an average of all surface soil concentrations from all locations within the defined exposure area and is based on either the 95%UCL or the arithmetic average if the 95%UCL was less than the arithmetic average or greater than mab Maximum concentration represents the highest detected surface soil concentration from a single location. Some constituents with a high degree of non-detects have average concentrations that exeed the maximum detected concentration.c Literature-based screening benchmarks represents the lowest value that was available from the following sources: TCEQ (2001); EPA (2000); ORNL (1997); Friday (1998); EPA (1999).d Site-specific food chain benchmarks for wildlife were derived for only those constituents determined to be bioaccumulative in terrestrial soils according to criteria outlined by the State of Texas (TCEQ, 2001).e The northern bobwhite quail was selected as a target receptor for assessing wildlife food-chain effects based on the type of habitat this species is expected to inhabitat and the type of habitat found at the SMS Site and the adjacent Sabine Lake wetlands.e The white-footed mouse was selected as a target receptor for assessing wildlife food-chain effects based on the type of habitat this species is expected to inhabitat and the type of habitat found at the SMS Site and the adjacent Sabine Lake wetlands.g Lower and upper range background concentrations taken from EPA Region 6 Medium-Specific Screening Level Guidance (9/2001; http://www.epa.gov/earth1r6/6pd/rcra_c/pd-n/screen.htm)h Texas-specific median background concentrations taken from the Texas Risk Reduction Program (TRRP) Guidance [Figure 30 TAC 350.51(m)].i Site-specific background screening values were calculated using the arithmetic mean for constituents with 100% frequency of detection or the maximum detected concentration for constituents with less than 100% frequency of detection. Background surface soi

Bolded values indicate that the maximum detected concentration exceeded this benchmark.Boxed and bolded values indicate that both the average and the maximum detected concentration exceeded this benchmark.Boxed values indicate that only the average concentration exceeded this benchmark. This is due to a high degree of non-detect samples in the dataset (see above).-- = Benchmarks were not available for these constituents.NA = Constituent was not detected at any of the background locations and therefore a background concentration could not be established.Constituents include sample results from the WESTON 2001 Remedial Investigation (RI).

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005056
Northern Bobwhitee White-footed Mousef 

1,1'-Biphenyl BNA mg/kg 4.75E-01 2.10E-01 6.00E+01 -- -- 

2-Methylnaphthalene BNA mg/kg 4.88E-01 1.60E+00 -- -- -- 

4-Methylphenol (p-Cresol) BNA mg/kg 4.88E-01 1.10E-01 5.00E-01 -- -- 

Acenaphthene BNA mg/kg 4.81E-01 6.40E-02 2.00E+01 -- -- 

Acenaphthylene BNA mg/kg 3.13E-01 9.10E-01 -- -- -- 

Acetophenone BNA mg/kg 2.25E-01 2.50E-01 -- -- -- 

Anthracene BNA mg/kg 3.22E-01 1.10E+00 1.00E-01 -- -- 

Benzaldehyde BNA mg/kg 3.78E-01 9.70E-02 -- -- -- 

Benzo(a)anthracene BNA mg/kg 1.03E+00 4.20E+00 1.20E+00 -- -- 

Benzo(a)pyrene BNA mg/kg 1.14E+00 5.10E+00 1.00E-01 -- -- 

Benzo(b)fluoranthene BNA mg/kg 1.17E+00 7.10E+00 1.20E+00 -- -- 

Benzo(g,h,i)perylene BNA mg/kg 7.35E-01 2.10E+00 -- -- -- 

Benzo(k)fluoranthene BNA mg/kg 7.39E-01 2.50E+00 1.20E+00 -- -- 

bis(2-Ethylhexyl)phthalate BNA mg/kg 8.22E-01 1.90E+00 -- -- -- 

Butylbenzylphthalate BNA mg/kg 5.86E-01 2.40E-02 -- -- -- 

Carbazole BNA mg/kg 5.22E-01 5.20E-01 -- -- -- 

Chrysene BNA mg/kg 1.17E+00 5.40E+00 1.20E+00 -- -- 

Dibenz(a,h)anthracene BNA mg/kg 5.14E-01 9.40E-01 1.20E+00 -- -- 

Dibenzofuran BNA mg/kg 4.63E-01 1.30E-01 -- -- -- 

Di-n-butylphthalate BNA mg/kg 5.89E-01 5.60E-02 2.00E+02 -- -- 

Di-n-octylphthalate BNA mg/kg 5.87E-01 1.30E-02 -- -- -- 

Fluoranthene BNA mg/kg 1.16E+00 7.60E+00 1.00E-01 -- -- 

Fluorene BNA mg/kg 4.72E-01 1.80E-01 3.00E+01 -- -- 

Indeno(1,2,3-cd)pyrene BNA mg/kg 4.78E-01 2.20E+00 1.20E+00 -- -- 

Naphthalene BNA mg/kg 3.12E-01 1.40E+00 1.00E-01 -- -- 

Phenanthrene BNA mg/kg 4.77E-01 2.00E+00 1.00E-01 -- -- 

Pyrene BNA mg/kg 1.27E+00 7.40E+00 1.00E-01 -- -- 

Aluminum METAL mg/kg 5.65E+03 6.78E+03 5.00E+00 -- -- Antimony METAL mg/kg 1.09E+00 4.60E+00 5.00E-01 -- -- 

Arsenic METAL mg/kg 1.44E+01 2.64E+01 2.50E-01 -- -- Barium METAL mg/kg 2.29E+02 2.89E+02 5.00E+00 -- -- 

Beryllium METAL mg/kg 6.25E-01 6.80E-01 1.00E-01 -- -- Cadmium METAL mg/kg 6.05E-01 1.70E+00 2.00E-01 3.85E+01 4.14E-01 

Calcium METAL mg/kg 1.23E+04 1.75E+04 -- -- -- 

Chromium METAL mg/kg 8.04E+01 5.03E+02 4.00E-01 5.36E+01 1.02E+06 Cobalt METAL mg/kg 1.07E+01 1.91E+01 2.00E+01 -- -- 

Copper METAL mg/kg 1.08E+03 7.39E+03 1.00E+00 1.87E+03 4.13E+02 Iron METAL mg/kg 1.05E+05 1.34E+05 2.00E+02 -- -- 

Lead METAL mg/kg 1.91E+02 1.03E+03 4.60E+00 1.91E+00 5.55E+00 

Magnesium METAL mg/kg 1.34E+03 1.50E+03 -- -- -- 

Manganese METAL mg/kg 8.48E+02 1.02E+03 1.00E+02 -- -- Mercury METAL mg/kg 8.56E-01 5.60E+00 5.10E-04 2.51E+02 1.93E+02 

Nickel METAL mg/kg 6.69E+01 4.11E+02 2.50E+01 5.11E+03 1.07E+04 

Potassium METAL mg/kg 2.01E+03 3.09E+03 -- -- -- 

Selenium METAL mg/kg 4.14E+00 4.40E+00 5.00E-02 2.48E+01 7.46E+00 

Silver METAL mg/kg 6.03E+00 6.90E+00 2.00E-02 -- -- 

Sodium METAL mg/kg 1.19E+03 1.26E+03 -- -- -- 

Table 5-6

Surface Soil Ecological Screening Results (Lauren Tank Farm)

Maximum 

Concentrationb Constituents Data Group Units

Average 

Concentrationa

Literature-Based 

Screeing Benchmark 

Valuesc

Wildlife Food-Chain Benchmarksd

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005057
Northern Bobwhitee White-footed Mousef 

Table 5-6

Surface Soil Ecological Screening Results (Lauren Tank Farm)

Maximum 

Concentrationb Constituents Data Group Units

Average 

Concentrationa

Literature-Based 

Screeing Benchmark 

Valuesc

Wildlife Food-Chain Benchmarksd

Thallium METAL mg/kg 9.30E-01 1.00E+00 1.00E-02 -- -- 

Vanadium METAL mg/kg 1.59E+01 1.64E+01 2.00E+00 -- -- 

Zinc METAL mg/kg 3.07E+02 1.48E+03 9.00E-01 3.59E+03 2.15E+02 

Notes:

a Average concentration represent an average of all surface soil concentrations from all locations within the defined exposure area and is based on either the 95%UCL or the arithmetic average if the 95%UCL was less than the arithmetic average or greater than maximub Maximum concentration represents the highest detected surface soil concentration from a single location. Some constituents with a high degree of non-detects have average concentrations that exeed the maximum detected concentration.c Literature-based screening benchmarks represents the lowest value that was available from the following sources: TCEQ (2001); EPA (2000); ORNL (1997); Friday (1998); EPA (1999).d Site-specific food chain benchmarks for wildlife were derived for only those constituents determined to be bioaccumulative in terrestrial soils according to criteria outlined by the State of Texas (TCEQ, 2001).e The northern bobwhite quail was selected as a target receptor for assessing wildlife food-chain effects based on the type of habitat this species is expected to inhabitat and the type of habitat found at the SMS Site and the adjacent Sabine Lake wetlands.e The white-footed mouse was selected as a target receptor for assessing wildlife food-chain effects based on the type of habitat this species is expected to inhabitat and the type of habitat found at the SMS Site and the adjacent Sabine Lake wetlands.g Lower and upper range background concentrations taken from EPA Region 6 Medium-Specific Screening Level Guidance (9/2001; http://www.epa.gov/earth1r6/6pd/rcra_c/pd-n/screen.htm)h Texas-specific median background concentrations taken from the Texas Risk Reduction Program (TRRP) Guidance [Figure 30 TAC 350.51(m)].i Site-specific background screening values were calculated using the arithmetic mean for constituents with 100% frequency of detection or the maximum detected concentration for constituents with less than 100% frequency of detection. Background surface soils we

Bolded values indicate that the maximum detected concentration exceeded this benchmark.Boxed and bolded values indicate that both the average and the maximum detected concentration exceeded this benchmark.Boxed values indicate that only the average concentration exceeded this benchmark. This is due to a high degree of non-detect samples in the dataset (see above).-- = Benchmarks were not available for these constituents.NA = Constituent was not detected at any of the background locations and therefore a background concentration could not be established.Constituents include sample results from the WESTON 2001 Remedial Investigation (RI).

5/5/2003: 5:00 PM 

005058
Northern Bobwhitee White-footed Mousef 

1,1'-Biphenyl BNA mg/kg 4.25E-01 5.00E-01 6.00E+01 -- -- 2-Methylnaphthalene BNA mg/kg 4.60E-01 2.00E+00 -- -- -- 

4-Methylphenol (p-Cresol) BNA mg/kg 3.80E-01 2.20E-01 5.00E-01 -- -- 

Acenaphthene BNA mg/kg 5.43E-01 9.60E+00 2.00E+01 -- -- 

Acenaphthylene BNA mg/kg 6.01E-01 5.00E+00 -- -- -- 

Acetophenone BNA mg/kg 5.50E-01 8.20E-01 -- -- -- 

Anthracene BNA mg/kg 7.45E-01 1.30E+01 1.00E-01 -- -- 

Benzaldehyde BNA mg/kg 2.06E-01 1.50E-01 -- -- -- 

Benzo(a)anthracene BNA mg/kg 6.76E-01 2.40E+01 1.20E+00 -- -- 

Benzo(a)pyrene BNA mg/kg 6.09E-01 1.90E+01 1.00E-01 -- -- Benzo(b)fluoranthene BNA mg/kg 8.13E-01 2.50E+01 1.20E+00 -- -- 

Benzo(g,h,i)perylene BNA mg/kg 4.75E-01 4.30E+00 -- -- -- 

Benzo(k)fluoranthene BNA mg/kg 5.36E-01 1.20E+01 1.20E+00 -- -- 

bis(2-Ethylhexyl)phthalate BNA mg/kg 9.51E-01 3.20E+00 -- -- -- 

Butylbenzylphthalate BNA mg/kg 3.30E-01 2.60E-01 -- -- -- 

Carbazole BNA mg/kg 4.32E-01 7.50E+00 -- -- -- 

Chrysene BNA mg/kg 7.19E-01 2.10E+01 1.20E+00 -- -- 

Dibenz(a,h)anthracene BNA mg/kg 4.06E-01 2.20E+00 1.20E+00 -- -- Dibenzofuran BNA mg/kg 5.12E-01 3.80E+00 -- -- -- 

Di-n-butylphthalate BNA mg/kg 4.29E-01 4.40E-01 2.00E+02 -- -- 

Di-n-octylphthalate BNA mg/kg 3.92E-01 9.10E-02 -- -- -- 

Fluoranthene BNA mg/kg 1.33E+00 6.20E+01 1.00E-01 -- -- 

Fluorene BNA mg/kg 5.13E-01 8.10E+00 3.00E+01 -- -- Indeno(1,2,3-cd)pyrene BNA mg/kg 4.92E-01 6.90E+00 1.20E+00 -- -- 

Naphthalene BNA mg/kg 4.63E-01 6.80E+00 1.00E-01 -- -- Phenanthrene BNA mg/kg 1.18E+00 5.30E+01 1.00E-01 -- -- 

Pyrene BNA mg/kg 1.02E+00 4.00E+01 1.00E-01 -- -- Aluminum METAL mg/kg 7.09E+03 1.96E+04 5.00E+00 -- -- Antimony METAL mg/kg 4.23E+00 2.63E+01 5.00E-01 -- -- 

Arsenic METAL mg/kg 8.30E+00 4.87E+01 2.50E-01 -- -- 

Barium METAL mg/kg 2.23E+02 7.44E+02 5.00E+00 -- -- Beryllium METAL mg/kg 5.41E-01 1.20E+00 1.00E-01 -- -- 

Cadmium METAL mg/kg 1.21E+00 1.15E+01 2.00E-01 3.85E+01 4.14E-01 

Calcium METAL mg/kg 1.99E+04 1.30E+05 -- -- -- 

Chromium METAL mg/kg 2.39E+01 4.88E+02 4.00E-01 5.36E+01 1.02E+06 

Cobalt METAL mg/kg 5.34E+00 1.03E+01 2.00E+01 -- -- 

Copper METAL mg/kg 1.62E+02 5.48E+03 1.00E+00 1.87E+03 4.13E+02 

Cyanide, Total METAL mg/kg 1.21E-01 3.70E-01 9.00E-01 -- -- 

Iron METAL mg/kg 2.23E+04 1.57E+05 2.00E+02 -- -- 

Lead METAL mg/kg 1.98E+02 2.04E+03 4.60E+00 1.91E+00 5.55E+00 

Magnesium METAL mg/kg 1.50E+03 4.22E+03 -- -- -- 

Manganese METAL mg/kg 2.92E+02 1.06E+03 1.00E+02 -- -- 

Mercury METAL mg/kg 8.57E-02 5.40E-01 5.10E-04 2.51E+02 1.93E+02 

Nickel METAL mg/kg 1.78E+01 6.27E+01 2.50E+01 5.11E+03 1.07E+04 

Potassium METAL mg/kg 1.31E+03 2.33E+03 -- -- -- 

Selenium METAL mg/kg 5.47E-01 9.00E-01 5.00E-02 2.48E+01 7.46E+00 

Silver METAL mg/kg 1.14E+00 8.30E+00 2.00E-02 -- -- 

Sodium METAL mg/kg 7.17E+02 2.64E+03 -- -- -- Thallium METAL mg/kg 8.55E-01 2.90E+00 1.00E-02 -- -- 

Table 5-7

Surface Soil Ecological Screening Results (Non-Source Areas)

Maximum 

Concentrationb Constituents Data Group Units

Average 

Concentrationa

Literature-Based 

Screeing Benchmark 

Valuesc

Wildlife Food-Chain Benchmarksd

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005059
Northern Bobwhitee White-footed Mousef 

Table 5-7

Surface Soil Ecological Screening Results (Non-Source Areas)

Maximum 

Concentrationb Constituents Data Group Units

Average 

Concentrationa

Literature-Based 

Screeing Benchmark 

Valuesc

Wildlife Food-Chain Benchmarksd

Vanadium METAL mg/kg 1.65E+01 2.68E+01 2.00E+00 -- -- 

Zinc METAL mg/kg 3.91E+02 2.75E+03 9.00E-01 3.59E+03 2.15E+02 

Notes:

a Average concentration represent an average of all surface soil concentrations from all locations within the defined exposure area and is based on either the 95%UCL or the arithmetic average if the 95%UCL was less than the arithmetic average or greater than mab Maximum concentration represents the highest detected surface soil concentration from a single location. Some constituents with a high degree of non-detects have average concentrations that exeed the maximum detected concentration.c Literature-based screening benchmarks represents the lowest value that was available from the following sources: TCEQ (2001); EPA (2000); ORNL (1997); Friday (1998); EPA (1999).d Site-specific food chain benchmarks for wildlife were derived for only those constituents determined to be bioaccumulative in terrestrial soils according to criteria outlined by the State of Texas (TCEQ, 2001).e The northern bobwhite quail was selected as a target receptor for assessing wildlife food-chain effects based on the type of habitat this species is expected to inhabitat and the type of habitat found at the SMS Site and the adjacent Sabine Lake wetlands.e The white-footed mouse was selected as a target receptor for assessing wildlife food-chain effects based on the type of habitat this species is expected to inhabitat and the type of habitat found at the SMS Site and the adjacent Sabine Lake wetlands.g Lower and upper range background concentrations taken from EPA Region 6 Medium-Specific Screening Level Guidance (9/2001; http://www.epa.gov/earth1r6/6pd/rcra_c/pd-n/screen.htm)h Texas-specific median background concentrations taken from the Texas Risk Reduction Program (TRRP) Guidance [Figure 30 TAC 350.51(m)].i Site-specific background screening values were calculated using the arithmetic mean for constituents with 100% frequency of detection or the maximum detected concentration for constituents with less than 100% frequency of detection. Background surface soil

Bolded values indicate that the maximum detected concentration exceeded this benchmark.Boxed and bolded values indicate that both the average and the maximum detected concentration exceeded this benchmark.Boxed values indicate that only the average concentration exceeded this benchmark. This is due to a high degree of non-detect samples in the dataset (see above).-- = Benchmarks were not available for these constituents.NA = Constituent was not detected at any of the background locations and therefore a background concentration could not be established.Constituents include sample results from the WESTON 2001 Remedial Investigation (RI).

5/6/2003: 11:14 AM 

005060
Northern Bobwhitee White-footed Mo

1,1'-Biphenyl BNA mg/kg 4.32E-01 5.00E-01 6.00E+01 -- -- 2-Methylnaphthalene BNA mg/kg 3.87E-01 2.00E+00 -- -- -- 3,3'-Dichlorobenzidine BNA mg/kg 4.70E-01 8.10E-01 -- -- -- 4-Methylphenol (p-Cresol) BNA mg/kg 3.56E-01 2.20E-01 5.00E-01 -- -- Acenaphthene BNA mg/kg 5.97E-01 9.60E+00 2.00E+01 -- -- Acenaphthylene BNA mg/kg 4.52E-01 5.00E+00 -- -- -- Acetophenone BNA mg/kg 3.87E-01 2.00E+00 -- -- -- Anthracene BNA mg/kg 6.90E-01 1.30E+01 1.00E-01 -- -- 

Benzaldehyde BNA mg/kg 4.05E-01 6.30E+00 -- -- -- 

Benzo(a)anthracene BNA mg/kg 1.06E+00 2.40E+01 1.20E+00 -- -- 

Benzo(a)pyrene BNA mg/kg 9.17E-01 1.90E+01 1.00E-01 -- -- 

Benzo(b)fluoranthene BNA mg/kg 1.22E+00 2.50E+01 1.20E+00 -- -- Benzo(g,h,i)perylene BNA mg/kg 5.53E-01 4.30E+00 -- -- -- Benzo(k)fluoranthene BNA mg/kg 6.67E-01 1.20E+01 1.20E+00 -- -- bis(2-Ethylhexyl)phthalate BNA mg/kg 8.55E-01 4.90E+00 -- -- -- 

Butylbenzylphthalate BNA mg/kg 4.10E-01 5.20E-01 -- -- -- 

Carbazole BNA mg/kg 4.64E-01 7.50E+00 -- -- -- 

Chrysene BNA mg/kg 1.09E+00 2.10E+01 1.20E+00 -- -- Dibenz(a,h)anthracene BNA mg/kg 3.19E-01 2.20E+00 1.20E+00 -- -- 

Dibenzofuran BNA mg/kg 4.50E-01 3.80E+00 -- -- -- 

Di-n-butylphthalate BNA mg/kg 3.75E-01 4.40E-01 2.00E+02 -- -- 

Di-n-octylphthalate BNA mg/kg 3.69E-01 1.80E-01 -- -- -- 

Fluoranthene BNA mg/kg 2.27E+00 6.20E+01 1.00E-01 -- -- 

Fluorene BNA mg/kg 5.53E-01 8.10E+00 3.00E+01 -- -- Indeno(1,2,3-cd)pyrene BNA mg/kg 4.61E-01 6.90E+00 1.20E+00 -- -- 

Naphthalene BNA mg/kg 4.58E-01 6.80E+00 1.00E-01 -- -- 

Pentachlorophenol BNA mg/kg 9.62E-01 2.80E-01 2.00E-03 -- -- Phenanthrene BNA mg/kg 1.81E+00 5.30E+01 1.00E-01 -- -- 

Pyrene BNA mg/kg 1.69E+00 4.00E+01 1.00E-01 -- -- Aluminum METAL mg/kg 6.96E+03 2.06E+04 5.00E+00 -- -- 

Antimony METAL mg/kg 3.64E+00 2.63E+01 5.00E-01 -- -- 

Arsenic METAL mg/kg 7.24E+00 4.87E+01 2.50E-01 -- -- Barium METAL mg/kg 2.09E+02 7.44E+02 5.00E+00 -- -- Beryllium METAL mg/kg 5.68E-01 1.20E+00 1.00E-01 -- -- 

Cadmium METAL mg/kg 9.24E-01 1.15E+01 2.00E-01 3.85E+01 4.14E-01 

Calcium METAL mg/kg 1.64E+04 1.30E+05 -- -- -- 

Chromium METAL mg/kg 3.75E+01 5.03E+02 4.00E-01 5.36E+01 1.02E+06 

Cobalt METAL mg/kg 5.44E+00 1.91E+01 2.00E+01 -- -- 

Copper METAL mg/kg 3.54E+02 7.39E+03 1.00E+00 1.87E+03 4.13E+02 

Table 5-8

Surface Soil Ecological Screening Results (All Upland Areas) 

Units

Average 

Concentrationa

Maximum 

Concentrationb

Wildlife Food-Chain Benchmarksd Literature-Based 

Screeing Benchmark 

Valuesc Constituents

Data 

Group

5/6/2003: 11:01 AM 

005061
Northern Bobwhitee White-footed Mo

Table 5-8

Surface Soil Ecological Screening Results (All Upland Areas) 

Units

Average 

Concentrationa

Maximum 

Concentrationb

Wildlife Food-Chain Benchmarksd Literature-Based 

Screeing Benchmark 

Valuesc Constituents

Data 

Group

Cyanide, Total METAL mg/kg 1.08E-01 4.80E-01 9.00E-01 -- -- 

Iron METAL mg/kg 2.35E+04 1.57E+05 2.00E+02 -- -- 

Lead METAL mg/kg 1.97E+02 2.04E+03 4.60E+00 1.91E+00 5.55E+00 

Magnesium METAL mg/kg 1.46E+03 4.22E+03 -- -- -- 

Manganese METAL mg/kg 3.10E+02 1.06E+03 1.00E+02 -- -- Mercury METAL mg/kg 2.43E-01 5.60E+00 5.10E-04 2.51E+02 1.93E+02 

Nickel METAL mg/kg 2.51E+01 4.11E+02 2.50E+01 5.11E+03 1.07E+04 

Potassium METAL mg/kg 1.28E+03 3.09E+03 -- -- -- 

Selenium METAL mg/kg 6.06E-01 4.40E+00 5.00E-02 2.48E+01 7.46E+00 

Silver METAL mg/kg 1.24E+00 8.30E+00 2.00E-02 -- -- 

Sodium METAL mg/kg 6.57E+02 2.64E+03 -- -- -- 

Thallium METAL mg/kg 7.69E-01 2.90E+00 1.00E-02 -- -- 

Vanadium METAL mg/kg 1.64E+01 3.10E+01 2.00E+00 -- -- 

Zinc METAL mg/kg 3.35E+02 2.75E+03 9.00E-01 3.59E+03 2.15E+02 

Notes:

a Average concentration represent an average of all surface soil concentrations from all locations within the defined exposure area and is based on either the 95%UCL or the arithmetic average if the 95%UCL was less than the arithmetic average or greb Maximum concentration represents the highest detected surface soil concentration from a single location. Some constituents with a high degree of non-detects have average concentrations that exeed the maximum detected concentration.c Literature-based screening benchmarks represents the lowest value that was available from the following sources: TCEQ (2001); EPA (2000); ORNL (1997); Friday (1998); EPA (1999).d Site-specific food chain benchmarks for wildlife were derived for only those constituents determined to be bioaccumulative in terrestrial soils according to criteria outlined by the State of Texas (TCEQ, 2001).e The northern bobwhite quail was selected as a target receptor for assessing wildlife food-chain effects based on the type of habitat this species is expected to inhabitat and the type of habitat found at the SMS Site and the adjacent Sabine Lake wetlane The white-footed mouse was selected as a target receptor for assessing wildlife food-chain effects based on the type of habitat this species is expected to inhabitat and the type of habitat found at the SMS Site and the adjacent Sabine Lake wetlands.g Lower and upper range background concentrations taken from EPA Region 6 Medium-Specific Screening Level Guidance (9/2001; http://www.epa.gov/earth1r6/6pd/rcra_c/pd-n/screen.htm)h Texas-specific median background concentrations taken from the Texas Risk Reduction Program (TRRP) Guidance [Figure 30 TAC 350.51(m)].i Site-specific background screening values were calculated using the arithmetic mean for constituents with 100% frequency of detection or the maximum detected concentration for constituents with less than 100% frequency of detection. Background 

Bolded values indicate that the maximum detected concentration exceeded this benchmark.Boxed and bolded values indicate that both the average and the maximum detected concentration exceeded this benchmark.Boxed values indicate that only the average concentration exceeded this benchmark. This is due to a high degree of non-detect samples in the dataset (see above).-- = Benchmarks were not available for these constituents.NA = Constituent was not detected at any of the background locations and therefore a background concentration could not be established.Constituents include sample results from the WESTON 2001 Remedial Investigation (RI).

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005062
Northern Bobwhitee White-footed Mouse

2-Methylnaphthalene BNA mg/kg 2.34E-01 1.70E-02 -- -- -- 

Acenaphthene BNA mg/kg 1.83E-01 4.10E-02 2.00E+01 -- -- 

Acetophenone BNA mg/kg 1.91E-01 2.50E-02 -- -- -- Anthracene BNA mg/kg 1.72E-01 6.90E-02 1.00E-01 -- -- 

Benzaldehyde BNA mg/kg 1.22E-01 1.60E-01 -- -- -- Benzo(a)anthracene BNA mg/kg 2.25E-01 2.30E-01 1.20E+00 -- -- 

Benzo(a)pyrene BNA mg/kg 1.34E-01 1.70E-01 1.00E-01 -- -- Benzo(b)fluoranthene BNA mg/kg 1.59E-01 2.80E-01 1.20E+00 -- -- 

Benzo(g,h,i)perylene BNA mg/kg 2.30E-01 1.10E-01 -- -- -- 

Benzo(k)fluoranthene BNA mg/kg 1.78E-01 1.10E-01 1.20E+00 -- -- 

bis(2-Ethylhexyl)phthalate BNA mg/kg 3.19E+00 7.40E+00 -- -- -- Carbazole BNA mg/kg 2.07E-01 5.00E-02 -- -- -- 

Chrysene BNA mg/kg 1.83E-01 2.30E-01 1.20E+00 -- -- 

Dibenz(a,h)anthracene BNA mg/kg 2.23E-01 3.90E-02 1.20E+00 -- -- 

Dibenzofuran BNA mg/kg 1.98E-01 2.60E-02 -- -- -- Di-n-butylphthalate BNA mg/kg 2.21E-01 2.40E-02 2.00E+02 -- -- 

Di-n-octylphthalate BNA mg/kg 2.50E-01 2.00E-01 -- -- -- Fluoranthene BNA mg/kg 4.89E-01 5.00E-01 1.00E-01 -- -- Fluorene BNA mg/kg 2.01E-01 4.20E-02 3.00E+01 -- -- 

Indeno(1,2,3-cd)pyrene BNA mg/kg 1.47E-01 1.20E-01 1.20E+00 -- -- 

Naphthalene BNA mg/kg 2.15E-01 1.80E-02 1.00E-01 -- -- 

N-Nitrosodiphenylamine BNA mg/kg 2.41E-01 9.20E-02 2.00E+01 -- -- 

Pentachlorophenol BNA mg/kg 5.92E-01 6.00E-02 2.00E-03 -- -- Phenanthrene BNA mg/kg 2.44E-01 3.60E-01 1.00E-01 -- -- Pyrene BNA mg/kg 3.61E-01 3.90E-01 1.00E-01 -- -- 

Aluminum METAL mg/kg 8.60E+03 1.35E+04 5.00E+00 -- -- Antimony METAL mg/kg 3.44E+00 9.60E+00 5.00E-01 -- -- Arsenic METAL mg/kg 8.36E+00 1.26E+01 2.50E-01 -- -- Barium METAL mg/kg 1.09E+02 3.05E+02 5.00E+00 -- -- 

Beryllium METAL mg/kg 1.18E+00 1.30E+00 1.00E-01 -- -- 

Cadmium METAL mg/kg 2.29E+00 1.64E+01 2.00E-01 3.85E+01 4.14E-01 

Calcium METAL mg/kg 2.68E+04 3.28E+04 -- -- -- 

Chromium METAL mg/kg 2.14E+01 3.75E+01 4.00E-01 5.36E+01 1.02E+06 

Cobalt METAL mg/kg 2.99E+01 3.26E+01 2.00E+01 -- -- Copper METAL mg/kg 6.68E+01 4.06E+02 1.00E+00 1.87E+03 4.13E+02 

Cyanide, Total METAL mg/kg 1.35E-01 2.80E-01 9.00E-01 -- -- Iron METAL mg/kg 3.69E+04 6.45E+04 2.00E+02 -- -- 

Lead METAL mg/kg 1.32E+02 5.58E+02 4.60E+00 1.91E+00 5.55E+00 

Magnesium METAL mg/kg 3.13E+03 5.57E+03 -- -- -- 

Table 5-9

Subsurface Soil Ecological Screening Results (All Upland Areas)

Maximum 

Concentrationb

Literature-Based 

Screeing Benchmark 

Valuesc Constituents Data Group Units

Average 

Concentrationa

Wildlife Food-Chain Benchmarksd

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005063
Northern Bobwhitee White-footed Mouse

Table 5-9

Subsurface Soil Ecological Screening Results (All Upland Areas)

Maximum 

Concentrationb

Literature-Based 

Screeing Benchmark 

Valuesc Constituents Data Group Units

Average 

Concentrationa

Wildlife Food-Chain Benchmarksd

Manganese METAL mg/kg 2.80E+02 4.81E+02 1.00E+02 -- -- 

Mercury METAL mg/kg 5.06E-02 8.00E-02 5.10E-04 2.51E+02 1.93E+02 Nickel METAL mg/kg 2.38E+01 3.69E+01 2.50E+01 5.11E+03 1.07E+04 

Potassium METAL mg/kg 2.58E+03 4.05E+03 -- -- -- 

Silver METAL mg/kg 1.27E+00 3.30E+00 2.00E-02 -- -- Sodium METAL mg/kg 3.27E+03 5.43E+03 -- -- -- 

Thallium METAL mg/kg 9.00E-01 1.10E+00 1.00E-02 -- -- 

Vanadium METAL mg/kg 2.03E+01 3.28E+01 2.00E+00 -- -- 

Zinc METAL mg/kg 3.57E+02 1.55E+03 9.00E-01 3.59E+03 2.15E+02 

Notes:

a Average concentration represent an average of all surface soil concentrations from all locations within the defined exposure area and is based on either the 95%UCL or the arithmetic average if the 95%UCL was less than the arithmetic average or greater than maximb Maximum concentration represents the highest detected surface soil concentration from a single location. Some constituents with a high degree of non-detects have average concentrations that exeed the maximum detected concentration.c Literature-based screening benchmarks represents the lowest value that was available from the following sources: TCEQ (2001); EPA (2000); ORNL (1997); Friday (1998); EPA (1999).d Site-specific food chain benchmarks for wildlife were derived for only those constituents determined to be bioaccumulative in terrestrial soils according to criteria outlined by the State of Texas (TCEQ, 2001).e The northern bobwhite quail was selected as a target receptor for assessing wildlife food-chain effects based on the type of habitat this species is expected to inhabitat and the type of habitat found at the SMS Site and the adjacent Sabine Lake wetlands.e The white-footed mouse was selected as a target receptor for assessing wildlife food-chain effects based on the type of habitat this species is expected to inhabitat and the type of habitat found at the SMS Site and the adjacent Sabine Lake wetlands.g Lower and upper range background concentrations taken from EPA Region 6 Medium-Specific Screening Level Guidance (9/2001; http://www.epa.gov/earth1r6/6pd/rcra_c/pd-n/screen.htm)h Texas-specific median background concentrations taken from the Texas Risk Reduction Program (TRRP) Guidance [Figure 30 TAC 350.51(m)].i Site-specific background screening values were calculated using the arithmetic mean for constituents with 100% frequency of detection or the maximum detected concentration for constituents with less than 100% frequency of detection. Background surface soils w

Bolded values indicate that the maximum detected concentration exceeded this benchmark.Boxed and bolded values indicate that both the average and the maximum detected concentration exceeded this benchmark.Boxed values indicate that only the average concentration exceeded this benchmark. This is due to a high degree of non-detect samples in the dataset (see above).-- = Benchmarks were not available for these constituents.NA = Constituent was not detected at any of the background locations and therefore a background concentration could not be established.Constituents include sample results from the WESTON 2001 Remedial Investigation (RI).

5/6/2003: 11:10 AM 

005064
Constituents Data Group Units

Average 

Concentration 

Maximum 

Concentration

Average 

AVS/SEM 

Ratioa

Maximum AVS/SEM 

Ratioa BERA ER-M b,c ERA PEL-SW b NOAA ER-L d NOAA ER-M d NOAA AET d

TNRCC Sediment 

Benchmarke

BERA 

FWCONPEC b,c

NOAA 

PEL-FW b,c

Acid Volatile Sulfide AVS/SEM mg/kg 202.62 933 NA NA NA NA NA NA NA NA NA NA 

Cadmium AVS/SEM mg/kg 1.10 1.49 0.0054 0.0016 NA NA NA NA NA NA NA NA 

Copper AVS/SEM mg/kg 87.72 313 0.4329 0.3355 NA NA NA NA NA NA NA NA 

Lead AVS/SEM mg/kg 203.68 942 1.0052 1.0096 NA NA NA NA NA NA NA NA 

Nickel AVS/SEM mg/kg 83.54 85 0.4123 0.0911 NA NA NA NA NA NA NA NA 

Zinc AVS/SEM mg/kg 332.49 594 1.6409 0.6367 NA NA NA NA NA NA NA NA 

2,2'-oxybis (1-Chloropropane) BNA mg/kg 0.01 0.014 NA NA -- -- -- -- -- -- -- -- 

2,4,5-Trichlorophenol BNA mg/kg 0.02 0.035 NA NA -- -- -- -- -- -- -- -- 

2,4,6-Trichlorophenol BNA mg/kg 0.02 0.035 NA NA -- -- -- -- -- -- -- -- 2,4-Dichlorophenol BNA mg/kg 0.02 0.028 NA NA -- -- -- -- -- -- -- -- 

2,4-Dimethylphenol BNA mg/kg 0.02 0.035 NA NA -- -- -- -- 2.90E-02 -- -- -- 2,4-Dinitrophenol BNA mg/kg 0.43 0.71 NA NA -- -- -- -- -- -- -- -- 

2,4-Dinitrotoluene BNA mg/kg 0.03 0.043 NA NA -- -- -- -- -- -- -- -- 

2,6-Dinitrotoluene BNA mg/kg 0.02 0.035 NA NA -- -- -- -- -- -- -- -- 2-Chloronaphthalene BNA mg/kg 0.01 0.021 NA NA -- -- -- -- -- -- -- -- 

2-Chlorophenol BNA mg/kg 0.02 0.042 NA NA -- -- -- -- -- -- -- -- 

2-Methylnaphthalene LPAH mg/kg 0.03 0.091 NA NA 6.70E-01 2.01E-01 7.00E-02 6.70E-01 6.40E-02 7.00E-02 -- -- 

2-Methylphenol (o-Cresol) BNA mg/kg 0.01 0.021 NA NA -- -- -- -- 5.50E-02 -- -- -- 2-Nitroaniline (o-Nitroaniline) BNA mg/kg 0.03 0.057 NA NA -- -- -- -- -- -- -- -- 

2-Nitrophenol BNA mg/kg 0.02 0.028 NA NA -- -- -- -- -- -- -- -- 

3,3'-Dichlorobenzidine BNA mg/kg 0.03 0.035 NA NA -- -- -- -- -- -- -- -- 3-Nitroaniline (m-Nitroaniline) BNA mg/kg 0.07 0.11 NA NA -- -- -- -- -- -- -- -- 

4,6-Dinitro-2-methylphenol BNA mg/kg 0.12 0.21 NA NA -- -- -- -- -- -- -- -- 

4-Bromophenyl-phenylether BNA mg/kg 0.01 0.014 NA NA -- -- -- -- -- -- -- -- 

4-Chloro-3-methylphenol BNA mg/kg 0.02 0.035 NA NA -- -- -- -- -- -- -- -- 4-Chloroaniline (p-Nitroaniline) BNA mg/kg 0.02 0.035 NA NA -- -- -- -- -- -- -- -- 

4-Chlorophenyl-phenylether BNA mg/kg 0.02 0.028 NA NA -- -- -- -- -- -- -- -- 

4-Methylphenol (p-Cresol) BNA mg/kg 0.04 0.044 NA NA -- -- -- -- 1.10E-01 -- -- -- 4-Nitroaniline (p-Nitroaniline) BNA mg/kg 0.04 0.071 NA NA -- -- -- -- -- -- -- -- 

4-Nitrophenol BNA mg/kg 0.17 0.28 NA NA -- -- -- -- -- -- -- -- 

Acenaphthene LPAH mg/kg 0.02 0.098 NA NA 5.00E-01 8.89E-02 1.60E-02 5.00E-01 1.30E-01 1.60E-02 -- -- 

Acenaphthylene LPAH mg/kg 0.02 0.035 NA NA 6.40E-01 1.28E-01 4.40E-02 6.40E-01 7.10E-02 4.40E-02 -- -- 

Acetophenone BNA mg/kg 0.01 0.043 NA NA -- -- -- -- -- -- -- -- 

Anthracene LPAH mg/kg 0.03 0.1 NA NA 1.10E+00 2.45E-01 8.53E-02 1.10E+00 2.80E-01 8.53E-02 8.45E-01 -- 

Atrazine BNA mg/kg 0.01 0.017 NA NA -- -- -- -- -- -- -- -- 

Benzaldehyde BNA mg/kg 0.06 0.11 NA NA -- -- -- -- -- -- -- -- Benzo(a)anthracene HPAH mg/kg 0.05 0.13 NA NA 1.60E+00 6.93E-01 2.61E-01 1.60E+00 9.60E-01 2.61E-01 1.05E+00 3.85E-01 

Benzo(a)pyrene HPAH mg/kg 0.14 0.24 NA NA 1.80E+00 7.63E-01 4.30E-01 1.80E+00 1.10E+00 4.30E-01 1.45E+00 7.82E-01 Benzo(b)fluoranthene HPAH mg/kg 0.09 0.25 NA NA -- -- -- -- 1.80E+00 -- -- -- Benzo(g,h,i)perylene HPAH mg/kg 0.09 0.16 NA NA -- -- -- -- 6.70E-01 -- -- -- 

Benzo(k)fluoranthene HPAH mg/kg 0.08 0.14 NA NA -- -- -- -- 1.80E+00 -- -- -- bis(2-Chloroethoxy)methane BNA mg/kg 0.02 0.035 NA NA -- -- -- -- -- -- -- -- 

bis(2-Chloroethyl)ether BNA mg/kg 0.02 0.028 NA NA -- -- -- -- -- -- -- -- 

Caprolactam BNA mg/kg 0.06 0.11 NA NA -- -- -- -- -- -- -- -- 

Carbazole BNA mg/kg 0.04 0.2 NA NA -- -- -- -- -- -- -- -- Chrysene HPAH mg/kg 0.05 0.12 NA NA 2.80E+00 8.46E-01 3.84E-01 2.80E+00 9.50E-01 3.84E-01 1.29E+00 8.62E-01 Dibenz(a,h)anthracene HPAH mg/kg 0.01 0.029 NA NA 2.60E-01 1.35E-01 6.34E-02 2.60E-01 2.30E-01 6.34E-02 -- -- 

Dibenzofuran BNA mg/kg 0.02 0.079 NA NA -- -- -- -- 1.10E-01 -- -- -- 

Diethylphthalate BNA mg/kg 0.01 0.021 NA NA -- -- -- -- 2.00E-01 -- -- -- 

Dimethylphthalate BNA mg/kg 0.00 0.001 NA NA -- -- -- -- 7.10E-02 -- -- -- 

Di-n-octylphthalate BNA mg/kg 0.01 0.021 NA NA -- -- -- -- 6.20E+00 -- -- -- 

Fluoranthene HPAH mg/kg 0.09 0.24 NA NA 5.10E+00 1.49E+00 6.00E-01 5.10E+00 1.30E+00 6.00E-01 2.23E+00 2.35E+00 

Fluorene LPAH mg/kg 0.02 0.11 NA NA 5.40E-01 1.44E-01 1.90E-02 5.40E-01 1.20E-01 1.90E-02 5.36E-01 -- 

Hexachlorobenzene BNA mg/kg 0.01 0.021 NA NA -- -- -- -- 2.20E-02 -- -- -- 

Hexachlorobutadiene BNA mg/kg 0.01 0.014 NA NA -- -- -- -- 1.30E-03 -- -- -- 

Hexachlorocyclopentadiene BNA mg/kg 0.01 0.021 NA NA -- -- -- -- -- -- -- -- 

Hexachloroethane BNA mg/kg 0.01 0.021 NA NA -- -- -- -- -- -- -- -- 

Indeno(1,2,3-cd)pyrene HPAH mg/kg 0.06 0.18 NA NA -- -- -- -- 6.00E-01 -- -- -- 

Isophorone BNA mg/kg 0.01 0.021 NA NA -- -- -- -- -- -- -- -- Naphthalene LPAH mg/kg 0.22 0.4 NA NA 2.10E+00 3.91E-01 1.60E-01 2.10E+00 2.30E-01 1.60E-01 5.61E-01 -- 

Nitrobenzene BNA mg/kg 0.02 0.028 NA NA -- -- -- -- -- -- -- -- N-Nitroso-di-n-propylamine BNA mg/kg 0.02 0.042 NA NA -- -- -- -- -- -- -- -- 

N-Nitrosodiphenylamine BNA mg/kg 0.01 0.014 NA NA -- -- -- -- 2.80E-02 -- -- -- Pentachlorophenol BNA mg/kg 0.21 0.21 NA NA -- -- -- -- 3.60E-01 -- -- -- 

Table 5-10

Surface Sediment Screening Results (Intertidal Area)

Marine Benchmarks Freshwater Benc

005065
Constituents Data Group Units

Average 

Concentration 

Maximum 

Concentration

Average 

AVS/SEM 

Ratioa

Maximum AVS/SEM 

Ratioa BERA ER-M b,c ERA PEL-SW b NOAA ER-L d NOAA ER-M d NOAA AET d

TNRCC Sediment 

Benchmarke

BERA 

FWCONPEC b,c

NOAA 

PEL-FW b,c

Surface Sediment Screening Results (Intertidal Area)

Marine Benchmarks Freshwater Benc

Phenanthrene LPAH mg/kg 0.09 0.32 NA NA 1.50E+00 5.44E-01 2.40E-01 1.50E+00 -- 2.40E-01 1.17E+00 5.15E-01 Phenol BNA mg/kg 0.02 0.028 NA NA -- -- -- -- 4.20E-01 -- -- -- 

Pyrene HPAH mg/kg 0.09 0.23 NA NA 2.80E+00 1.40E+00 6.65E-01 2.80E+00 2.40E+00 6.65E-01 1.52E+00 8.75E-01 LMW PAHs LPAH mg/kg 0.0454 1.154 NA NA 3.16E+00 1.44E+00 5.52E-01 3.16E+00 1.20E+00 5.52E-01 -- -- 

HMW PAHs HPAH mg/kg 0.1639 1.719 NA NA 9.60E+00 6.68E+00 1.70E+00 9.60E+00 7.90E+00 1.70E+00 -- --- 

Total PAHs TPAH mg/kg 0.2093 2.873 NA NA 4.48E+01 1.68E+01 4.02E+00 4.48E+01 -- 4.02E+00 2.28E+00 -- 

Aluminum METAL mg/kg 2364.64 3530 NA NA -- -- -- -- -- -- -- -- 

Antimony METAL mg/kg 4.04 16.1 NA NA -- -- -- -- 9.30E+00 -- -- -- 

Arsenic METAL mg/kg 9.64 13.7 NA NA -- -- 8.20E+00 7.00E+01 5.70E+01 8.20E+00 -- 1.70E+01 

Barium METAL mg/kg 60.73 83.6 NA NA -- -- -- -- 4.80E+01 -- -- -- 

Beryllium METAL mg/kg 0.21 0.33 NA NA -- -- -- -- -- -- -- -- 

Cadmium METAL mg/kg 3.38 4.5 NA NA -- -- 1.20E+00 9.60E+00 2.70E+00 1.20E+00 -- 3.53E+00 

Calcium METAL mg/kg 52122.22 172000 NA NA -- -- -- -- -- -- -- -- Chromium METAL mg/kg 25.03 87.2 NA NA 3.70E+02 1.60E+02 8.10E+01 3.70E+02 9.60E+01 8.10E+01 1.11E+02 9.00E+01 

Cobalt METAL mg/kg 6.20 8.2 NA NA -- -- -- -- -- -- -- -- 

Copper METAL mg/kg 82.55 124 NA NA 2.70E+02 1.08E+02 3.40E+01 2.70E+02 3.90E+02 3.40E+01 1.49E+02 1.97E+02 

Cyanide, Total METAL mg/kg 0.30 0.55 NA NA -- -- -- -- -- -- -- -- 

Iron METAL mg/kg 117314.23 201000 NA NA -- -- -- -- -- -- -- -- 

Lead METAL mg/kg 127.52 250 NA NA 2.18E+02 1.12E+02 4.67E+01 2.18E+02 4.30E+02 4.67E+01 1.28E+02 9.13E+01 Magnesium METAL mg/kg 1148.00 3620 NA NA -- -- -- -- -- -- -- -- 

Manganese METAL mg/kg 1498.91 1500 NA NA -- -- -- -- -- -- -- -- 

Mercury METAL mg/kg 0.10 0.18 NA NA 7.10E-01 7.00E-01 1.50E-01 7.10E-01 4.10E-01 1.50E-01 1.06E+00 4.86E-01 

Nickel METAL mg/kg 26.96 42 NA NA 5.16E+01 4.28E+01 2.09E+01 5.16E+01 1.10E+02 2.09E+01 4.86E+01 3.59E+01 

Potassium METAL mg/kg 1151.76 1230 NA NA -- -- -- -- -- -- -- -- 

Selenium METAL mg/kg 5.60 5.9 NA NA -- -- -- -- 1.00E+00 -- -- -- 

Silver METAL mg/kg 0.06 0.089 NA NA -- -- 1.00E+00 3.70E+00 5.60E-01 1.00E+00 -- -- 

Sodium METAL mg/kg 1233.35 1560 NA NA -- -- -- -- -- -- -- -- 

Vanadium METAL mg/kg 11.35 15.5 NA NA -- -- -- -- -- -- -- -- Zinc METAL mg/kg 292.48 1010 NA NA 4.10E+02 2.71E+02 1.50E+02 4.10E+02 4.10E+02 1.50E+02 4.59E+02 3.15E+02 

Tributyltin (TBT) ORGANOTINS mg/kg 0.0021 0.0022 NA NA 1.63E-02 -- -- -- -- -- -- -- 

Total Organic Carbon TOC mg/kg 23004.74 36000 NA NA NA NA NA NA NA NA NA NA 

Notes:

a AVS/SEM ratios pertain only to the divialent inorganic constituents and are based on average or maximum SEM concentrations divided by the average or maximum AVS concentration.b CDM Federal Programs Corporation. 2001. Calcasieu Estuary Remedial Investigation/Feasibilty Study: Baseline Ecological Risk Assessment (BERA). Baseline Problem Formulation, Volume I. Prepared for U.S. EPA Region 6. Work Assignment No. 041-RICO-0622. Revised September 2001. Table 9-2.c NOAA. 2002. Query Manager Version 2. Office of Response and Restoration. Calcasieu Estuary Data Set.d NOAA, 1999. Buchman, M.F. 1999. NOAA Screening Quick Reference Tables, NOAA HAZMAT Report 99-1, Seattle, WA. Coastal Protection and Restoration Division. National Oceanic and Atmospheric Administration. e TNRCC. 2001. Guidance for Conducting Ecological Risk Assessments at Remediation Sites in Texas. RG-263 (revised). Table 3-3.f Site-specific food chain benchmarks for wildlife were derived for only those constituents determined to be bioaccumulative in aquatic sediments according to criteria outlined by the State of Texas (TCEQ, 2001).g Background surface sediments (0 to 6 inches) were sampled during the WESTON 2001 RI at five reference area locations adjacent to Sydnes Island (RFW01, RFW02, RFW03, RFW04, RFW05). Site-specific background values were calculated using the arithmetic mean for constituents with 100% frequency of detection or the maximum detected concentrati

Bolded values indicate that the maximum detected concentration exceeded this benchmark.Boxed and bolded values indicate that both the average and the maximum detected concentration exceeded this benchmark.Boxed values indicate that only the average concentration exceeded this benchmark; this can occur when the average is greater than the maximum concentration.NA - Not applicable or appropriate for this constituent.-- = Screening benchmark values were not available for these constituents at the time this table was created.AVS/SEM = Acid Volatile Sulfide/Simultaneous Extractable MetalAET - Apparent Effects Threshold, Lowest values amound five AET tests is presented.ER-M = Effects range medianER-L = Effects range lowFWCONPEC = Freshwater consensus based probable effect concentrationPEL-FW = Probable effect level - freshwater.PEL-SW = Probable effect level - salt water.LMW PAHs (LPAH) = Sum of all the low molecular weight PAHs: Acenaphthene, Acenaphthylene, Anthracene, Fluorene, 2-Methylnaphthalene, Naphthalene, Phenanthrene.HMW PAHs (HPAH) = Sum of all the high molecular weight PAHs: Benzo(a)anthracene, Benzo(a)pyrene, Benzo(b)fluoranthene, Benzo(k)fluoranthene, Benzo(g,h,i)perylene, Chrysene, Dibenzo(a,h)anthracene, Fluoranthene, Indeno(1,2,3-cd)pyrene, Pyrene.Total PAHs (TPAH) = Total sum of all the PAHs (both low and high molecular weight PAHs).

005066
Constituents Data Group Units

Average 

Concentration 

Maximum 

Concentration

Average 

AVS/SEM 

Ratioa

Maximum 

AVS/SEM 

Ratioa BERA ER-M b,c BERA PEL-SW b,c NOAA ER-L d NOAA ER-M d NOAA AET d

TNRCC 

Sediment 

Benchmarke

BERA 

FWCONPE

Acid Volatile Sulfide AVS/SEM mg/kg 87.47 648 NA NA NA NA NA NA NA NA NA 

Cadmium AVS/SEM mg/kg 0.12 0.22 0.0014 0.0003 NA NA NA NA NA NA NA 

Copper AVS/SEM mg/kg 6.14 15.9 0.0702 0.0245 NA NA NA NA NA NA NA 

Lead AVS/SEM mg/kg 11.43 21.7 0.1307 0.0335 NA NA NA NA NA NA NA 

Nickel AVS/SEM mg/kg 8.18 13.9 0.0936 0.0215 NA NA NA NA NA NA NA 

Zinc AVS/SEM mg/kg 39.40 69.2 0.4504 0.1068 NA NA NA NA NA NA NA 

1,1'-Biphenyl BNA mg/kg 0.02 0.038 NA NA -- -- -- -- -- -- -- 

2-Methylnaphthalene LPAH mg/kg 0.01 0.25 NA NA 6.70E-01 2.01E-01 7.00E-02 6.70E-01 6.40E-02 7.00E-02 -- 

3,3'-Dichlorobenzidine BNA mg/kg 0.03 0.075 NA NA -- -- -- -- -- -- -- 

Acenaphthene LPAH mg/kg 0.00 0.018 NA NA 5.00E-01 8.89E-02 1.60E-02 5.00E-01 1.30E-01 1.60E-02 -- 

Acenaphthylene LPAH mg/kg 0.01 0.15 NA NA 6.40E-01 1.28E-01 4.40E-02 6.40E-01 7.10E-02 4.40E-02 -- 

Acetophenone BNA mg/kg 0.00 0.012 NA NA -- -- -- -- -- -- -- 

Anthracene LPAH mg/kg 0.01 0.15 NA NA 1.10E+00 2.45E-01 8.53E-02 1.10E+00 2.80E-01 8.53E-02 8.45E-01 

Benzaldehyde BNA mg/kg 0.02 0.038 NA NA -- -- -- -- -- -- -- 

Benzo(a)anthracene HPAH mg/kg 0.03 0.23 NA NA 1.60E+00 6.93E-01 2.61E-01 1.60E+00 9.60E-01 2.61E-01 1.05E+00 Benzo(a)pyrene HPAH mg/kg 0.17 0.64 NA NA 1.80E+00 7.63E-01 4.30E-01 1.80E+00 1.10E+00 4.30E-01 1.45E+00 Benzo(b)fluoranthene HPAH mg/kg 0.06 0.88 NA NA -- -- -- -- 1.80E+00 -- -- 

Benzo(g,h,i)perylene HPAH mg/kg 0.03 0.39 NA NA -- -- -- -- 6.70E-01 -- -- 

Benzo(k)fluoranthene HPAH mg/kg 0.04 0.41 NA NA -- -- -- -- 1.80E+00 -- -- 

Butylbenzylphthalate BNA mg/kg 0.02 0.05 NA NA -- -- -- -- 6.30E-02 -- -- 

Caprolactam BNA mg/kg 0.02 0.051 NA NA -- -- -- -- -- -- -- 

Carbazole BNA mg/kg 0.01 0.1 NA NA -- -- -- -- -- -- -- 

Chrysene HPAH mg/kg 0.05 0.56 NA NA 2.80E+00 8.46E-01 3.84E-01 2.80E+00 9.50E-01 3.84E-01 1.29E+00 

Dibenz(a,h)anthracene HPAH mg/kg 0.01 0.16 NA NA 2.60E-01 1.35E-01 6.34E-02 2.60E-01 2.30E-01 6.34E-02 -- 

Dibenzofuran BNA mg/kg 0.00 0.0099 NA NA -- -- -- -- 1.10E-01 -- -- 

Diethylphthalate BNA mg/kg 0.00 0.014 NA NA -- -- -- -- 2.00E-01 -- -- 

Di-n-butylphthalate BNA mg/kg 0.01 0.029 NA NA -- -- -- -- 1.40E+00 -- -- 

Di-n-octylphthalate BNA mg/kg 0.00 0.007 NA NA -- -- -- -- 6.20E+00 -- -- 

Fluoranthene HPAH mg/kg 0.04 0.17 NA NA 5.10E+00 1.49E+00 6.00E-01 5.10E+00 1.30E+00 6.00E-01 2.23E+00 Fluorene LPAH mg/kg 0.00 0.033 NA NA 5.40E-01 1.44E-01 1.90E-02 5.40E-01 1.20E-01 1.90E-02 5.36E-01 Indeno(1,2,3-cd)pyrene HPAH mg/kg 0.04 0.45 NA NA -- -- -- -- 6.00E-01 -- -- 

Naphthalene LPAH mg/kg 0.01 0.13 NA NA 2.10E+00 3.91E-01 1.60E-01 2.10E+00 2.30E-01 1.60E-01 5.61E-01 

Phenanthrene LPAH mg/kg 0.03 0.21 NA NA 1.50E+00 5.44E-01 2.40E-01 1.50E+00 -- 2.40E-01 1.17E+00 Pyrene HPAH mg/kg 0.07 0.98 NA NA 2.80E+00 1.40E+00 6.65E-01 2.80E+00 2.40E+00 6.65E-01 1.52E+00 

LMW PAHs LPAH mg/kg 0.0264 0.941 NA NA 3.16E+00 1.44E+00 5.52E-01 3.16E+00 1.20E+00 5.52E-01 -- 

HMW PAHs HPAH mg/kg 0.0538 4.87 NA NA 9.60E+00 6.68E+00 1.70E+00 9.60E+00 7.90E+00 1.70E+00 -- 

Total PAHs TPAH mg/kg 0.0802 5.811 NA NA 4.48E+01 1.68E+01 4.02E+00 4.48E+01 -- 4.02E+00 2.28E+00 

Aluminum METAL mg/kg 5042.11 8820 NA NA -- -- -- -- -- -- -- 

Antimony METAL mg/kg 0.27 0.5 NA NA -- -- -- -- 9.30E+00 -- -- 

Arsenic METAL mg/kg 5.26 14.3 NA NA -- -- 8.20E+00 7.00E+01 5.70E+01 8.20E+00 -- 

Barium METAL mg/kg 79.70 220 NA NA -- -- -- -- 4.80E+01 -- -- 

Beryllium METAL mg/kg 0.54 0.88 NA NA -- -- -- -- -- -- -- 

Cadmium METAL mg/kg 0.17 0.78 NA NA -- -- 1.20E+00 9.60E+00 2.70E+00 1.20E+00 -- 

Calcium METAL mg/kg 1557.14 4080 NA NA -- -- -- -- -- -- -- 

Chromium METAL mg/kg 7.75 12.3 NA NA 3.70E+02 1.60E+02 8.10E+01 3.70E+02 9.60E+01 8.10E+01 1.11E+02 

Cobalt METAL mg/kg 6.41 21.2 NA NA -- -- -- -- -- -- -- 

Copper METAL mg/kg 7.60 18.4 NA NA 2.70E+02 1.08E+02 3.40E+01 2.70E+02 3.90E+02 3.40E+01 1.49E+02 Iron METAL mg/kg 12144.78 50900 NA NA -- -- -- -- -- -- -- 

Lead METAL mg/kg 12.15 19.8 NA NA 2.18E+02 1.12E+02 4.67E+01 2.18E+02 4.30E+02 4.67E+01 1.28E+02 

Magnesium METAL mg/kg 2638.79 4240 NA NA -- -- -- -- -- -- -- 

Manganese METAL mg/kg 211.15 1270 NA NA -- -- -- -- -- -- -- 

Mercury METAL mg/kg 0.04 0.045 NA NA 7.10E-01 7.00E-01 1.50E-01 7.10E-01 4.10E-01 1.50E-01 1.06E+00 

Nickel METAL mg/kg 11.00 45.7 NA NA 5.16E+01 4.28E+01 2.09E+01 5.16E+01 1.10E+02 2.09E+01 4.86E+01 

Potassium METAL mg/kg 1519.00 2400 NA NA -- -- -- -- -- -- -- 

Selenium METAL mg/kg 0.33 0.92 NA NA -- -- -- -- 1.00E+00 -- -- 

Sodium METAL mg/kg 2615.07 5450 NA NA -- -- -- -- -- -- -- 

Table 5-11

Surface Sediment Screening Results (Nearshore Area)

Marine Benchmarks 

005067
Constituents Data Group Units

Average 

Concentration 

Maximum 

Concentration

Average 

AVS/SEM 

Ratioa

Maximum 

AVS/SEM 

Ratioa BERA ER-M b,c BERA PEL-SW b,c NOAA ER-L d NOAA ER-M d NOAA AET d

TNRCC 

Sediment 

Benchmarke

BERA 

FWCONPE

Surface Sediment Screening Results (Nearshore Area)

Marine Benchmarks 

Vanadium METAL mg/kg 14.43 22.6 NA NA -- -- -- -- -- -- -- 

Zinc METAL mg/kg 39.60 66.1 NA NA 4.10E+02 2.71E+02 1.50E+02 4.10E+02 4.10E+02 1.50E+02 4.59E+02 

Tributyltin (TBT) ORGANOTINS mg/kg 0.00 0.0063 NA NA 1.63E-02 -- -- -- -- -- -- 

Total Organic Carbon TOC mg/kg 12051.67 42700 NA NA NA NA NA NA NA NA NA 

Notes:

a AVS/SEM ratios pertain only to the divialent inorganic constituents and are based on average or maximum SEM concentrations divided by the average or maximum AVS concentration.b CDM Federal Programs Corporation. 2001. Calcasieu Estuary Remedial Investigation/Feasibilty Study: Baseline Ecological Risk Assessment (BERA). Baseline Problem Formulation, Volume I. Prepared for U.S. EPA Region 6. Work Assignment No. 041-RICO-0622. Revised September 2001. Table 9-2.c NOAA. 2002. Query Manager Version 2. Office of Response and Restoration. Calcasieu Estuary Data Set.d NOAA, 1999. Buchman, M.F. 1999. NOAA Screening Quick Reference Tables, NOAA HAZMAT Report 99-1, Seattle, WA. Coastal Protection and Restoration Division. National Oceanic and Atmospheric Administration. e TNRCC. 2001. Guidance for Conducting Ecological Risk Assessments at Remediation Sites in Texas. RG-263 (revised). Table 3-3.f Site-specific food chain benchmarks for wildlife were derived for only those constituents determined to be bioaccumulative in aquatic sediments according to criteria outlined by the State of Texas (TCEQ, 2001).g Background surface sediments (0 to 6 inches) were sampled during the WESTON 2001 RI at five reference area locations adjacent to Sydnes Island (RFW01, RFW02, RFW03, RFW04, RFW05). Site-specific background values were calculated using the arithmetic mean for constituents with 100% frequency of detection or the maximum detected con

Bolded values indicate that the maximum detected concentration exceeded this benchmark.Boxed and bolded values indicate that both the average and the maximum detected concentration exceeded this benchmark.Boxed values indicate that only the average concentration exceeded this benchmark; this can occur when the average is greater than the maximum concentration.NA - Not applicable or appropriate for this constituent.-- = Screening benchmark values were not available for these constituents at the time this table was created.AVS/SEM = Acid Volatile Sulfide/Simultaneous Extractable MetalAET - Apparent Effects Threshold, Lowest values amound five AET tests is presented.ER-M = Effects range medianER-L = Effects range lowFWCONPEC = Freshwater consensus based probable effect concentrationPEL-FW = Probable effect level - freshwater.PEL-SW = Probable effect level - salt water.LMW PAHs (LPAH) = Sum of all the low molecular weight PAHs: Acenaphthene, Acenaphthylene, Anthracene, Fluorene, 2-Methylnaphthalene, Naphthalene, Phenanthrene.HMW PAHs (HPAH) = Sum of all the high molecular weight PAHs: Benzo(a)anthracene, Benzo(a)pyrene, Benzo(b)fluoranthene, Benzo(k)fluoranthene, Benzo(g,h,i)perylene, Chrysene, Dibenzo(a,h)anthracene, Fluoranthene, Indeno(1,2,3-cd)pyrene, Pyrene.Total PAHs (TPAH) = Total sum of all the PAHs (both low and high molecular weight PAHs).

005068
Constituents Data Group Units

Average 

Concentration 

Maximum 

Concentration

BERA 

ERM a,b

BERA PELSW a,b NOAA ER-L c NOAA ER-M c NOAA AET c

TNRCC 

Sediment 

Benchmarkd

BERA 

FWCONPEC a,b

NOAA 

PEL-FW 

2-Methylnaphthalene LPAH mg/kg 0.0038 0.0062 6.70E-01 2.01E-01 7.00E-02 6.70E-01 6.40E-02 7.00E-02 -- -- 

3,3'-Dichlorobenzidine BNA mg/kg 0.0239 0.042 -- -- -- -- -- -- -- -- Acenaphthene LPAH mg/kg 0.0040 0.012 5.00E-01 8.89E-02 1.60E-02 5.00E-01 1.30E-01 1.60E-02 -- -- 

Acenaphthylene LPAH mg/kg 0.0052 0.015 6.40E-01 1.28E-01 4.40E-02 6.40E-01 7.10E-02 4.40E-02 -- -- 

Acetophenone BNA mg/kg 0.0022 0.0054 -- -- -- -- -- -- -- -- 

Anthracene LPAH mg/kg 0.0080 0.029 1.10E+00 2.45E-01 8.53E-02 1.10E+00 2.80E-01 8.53E-02 8.45E-01 -- 

Benzo(a)anthracene HPAH mg/kg 0.0404 0.084 1.60E+00 6.93E-01 2.61E-01 1.60E+00 9.60E-01 2.61E-01 1.05E+00 3.85E-0Benzo(a)pyrene HPAH mg/kg 0.0238 0.076 1.80E+00 7.63E-01 4.30E-01 1.80E+00 1.10E+00 4.30E-01 1.45E+00 7.82E-0Benzo(b)fluoranthene HPAH mg/kg 0.0763 0.11 -- -- -- -- 1.80E+00 -- -- -- Benzo(g,h,i)perylene HPAH mg/kg 0.0362 0.049 -- -- -- -- 6.70E-01 -- -- -- Benzo(k)fluoranthene HPAH mg/kg 0.0294 0.067 -- -- -- -- 1.80E+00 -- -- -- Butylbenzylphthalate BNA mg/kg 0.0234 0.061 -- -- -- -- 6.30E-02 -- -- -- 

Carbazole BNA mg/kg 0.0074 0.039 -- -- -- -- -- -- -- -- 

Chrysene HPAH mg/kg 0.0694 0.082 2.80E+00 8.46E-01 3.84E-01 2.80E+00 9.50E-01 3.84E-01 1.29E+00 8.62E-0Dibenz(a,h)anthracene HPAH mg/kg 0.0124 0.029 2.60E-01 1.35E-01 6.34E-02 2.60E-01 2.30E-01 6.34E-02 -- -- 

Di-n-butylphthalate BNA mg/kg 0.0105 0.02 -- -- -- -- 1.40E+00 -- -- -- 

Di-n-octylphthalate BNA mg/kg 0.0028 0.004 -- -- -- -- 6.20E+00 -- -- -- 

Fluoranthene HPAH mg/kg 0.1273 0.24 5.10E+00 1.49E+00 6.00E-01 5.10E+00 1.30E+00 6.00E-01 2.23E+00 2.35E+0Fluorene LPAH mg/kg 0.0023 0.0054 5.40E-01 1.44E-01 1.90E-02 5.40E-01 1.20E-01 1.90E-02 5.36E-01 -- 

Indeno(1,2,3-cd)pyrene HPAH mg/kg 0.0486 0.066 -- -- -- -- 6.00E-01 -- -- -- 

Naphthalene LPAH mg/kg 0.0031 0.0055 2.10E+00 3.91E-01 1.60E-01 2.10E+00 2.30E-01 1.60E-01 5.61E-01 -- 

Phenanthrene LPAH mg/kg 0.0256 0.11 1.50E+00 5.44E-01 2.40E-01 1.50E+00 -- 2.40E-01 1.17E+00 5.15E-0

Pyrene HPAH mg/kg 0.1585 0.2 2.80E+00 1.40E+00 6.65E-01 2.80E+00 2.40E+00 6.65E-01 1.52E+00 8.75E-0

LMW PAHs PAH mg/kg 0.0375 0.1831 3.16E+00 1.44E+00 5.52E-01 3.16E+00 1.20E+00 5.52E-01 -- -- 

HMW PAHs PAH mg/kg 0.0667 1.003 9.60E+00 6.68E+00 1.70E+00 9.60E+00 7.90E+00 1.70E+00 -- --- 

Total PAHs PAH mg/kg 0.1042 1.1861 4.48E+01 1.68E+01 4.02E+00 4.48E+01 -- 4.02E+00 2.28E+00 -- 

Aluminum METAL mg/kg 5380.13 8290 -- -- -- -- -- -- -- -- 

Antimony METAL mg/kg 0.24 0.46 -- -- -- -- 9.30E+00 -- -- -- 

Arsenic METAL mg/kg 5.32 9.9 -- -- 8.20E+00 7.00E+01 5.70E+01 8.20E+00 -- 1.70E+0Barium METAL mg/kg 153.59 650 -- -- -- -- 4.80E+01 -- -- -- 

Beryllium METAL mg/kg 0.66 1.2 -- -- -- -- -- -- -- -- 

Cadmium METAL mg/kg 0.24 0.32 -- -- 1.20E+00 9.60E+00 2.70E+00 1.20E+00 -- 3.53E+0

Calcium METAL mg/kg 4432.42 7200 -- -- -- -- -- -- -- -- 

Chromium METAL mg/kg 7.82 11.5 3.70E+02 1.60E+02 8.10E+01 3.70E+02 9.60E+01 8.10E+01 1.11E+02 9.00E+0Cobalt METAL mg/kg 5.61 8 -- -- -- -- -- -- -- -- 

Copper METAL mg/kg 7.45 11.3 2.70E+02 1.08E+02 3.40E+01 2.70E+02 3.90E+02 3.40E+01 1.49E+02 1.97E+0Cyanide, Total METAL mg/kg 0.15 0.39 -- -- -- -- -- -- -- -- 

Iron METAL mg/kg 10409.90 15300 -- -- -- -- -- -- -- -- 

Lead METAL mg/kg 14.87 29.9 2.18E+02 1.12E+02 4.67E+01 2.18E+02 4.30E+02 4.67E+01 1.28E+02 9.13E+0Magnesium METAL mg/kg 2690.32 4080 -- -- -- -- -- -- -- -- 

Manganese METAL mg/kg 254.37 764 -- -- -- -- -- -- -- -- 

Mercury METAL mg/kg 0.03 0.025 7.10E-01 7.00E-01 1.50E-01 7.10E-01 4.10E-01 1.50E-01 1.06E+00 4.86E-0

Nickel METAL mg/kg 8.71 12.6 5.16E+01 4.28E+01 2.09E+01 5.16E+01 1.10E+02 2.09E+01 4.86E+01 3.59E+0

Potassium METAL mg/kg 1683.78 2640 -- -- -- -- -- -- -- -- 

Selenium METAL mg/kg 0.30 0.57 -- -- -- -- 1.00E+00 -- -- -- 

Sodium METAL mg/kg 2661.57 3670 -- -- -- -- -- -- -- -- 

Vanadium METAL mg/kg 14.58 21.2 -- -- -- -- -- -- -- -- 

Table 5-12

Subsurface Sediment Screening Results (Nearshore Area)

Marine Benchmarks Freshwater Ben

005069
Constituents Data Group Units

Average 

Concentration 

Maximum 

Concentration

BERA 

ERM a,b

BERA PELSW a,b NOAA ER-L c NOAA ER-M c NOAA AET c

TNRCC 

Sediment 

Benchmarkd

BERA 

FWCONPEC a,b

NOAA 

PEL-FW 

Subsurface Sediment Screening Results (Nearshore Area)

Marine Benchmarks Freshwater Ben

Zinc METAL mg/kg 35.49 57.1 4.10E+02 2.71E+02 1.50E+02 4.10E+02 4.10E+02 1.50E+02 4.59E+02 3.15E+0Tributyltin (TBT) ORGANOTINS mg/kg 0.00 0.0031 1.63E-02 -- -- -- -- -- -- -- 

Notes:

a CDM Federal Programs Corporation. 2001. Calcasieu Estuary Remedial Investigation/Feasibilty Study: Baseline Ecological Risk Assessment (BERA). Baseline Problem Formulation, Volume I. Prepared for U.S. EPA Region 6. Work Assignment No. 041-RICO-0622. Revised September 2001. b NOAA. 2002. Query Manager Version 2. Office of Response and Restoration. Calcasieu Estuary Data Set.c NOAA, 1999. Buchman, M.F. 1999. NOAA Screening Quick Reference Tables, NOAA HAZMAT Report 99-1, Seattle, WA. Coastal Protection and Restoration Division. National Oceanic and Atmospheric Administration. d TNRCC. 2001. Guidance for Conducting Ecological Risk Assessments at Remediation Sites in Texas. RG-263 (revised). Table 3-3.e Site-specific food chain benchmarks for wildlife were derived for only those constituents determined to be bioaccumulative in aquatic sediments according to criteria outlined by the State of Texas (TCEQ, 2001).f Background surface sediments (0 to 6 inches) were sampled during the WESTON 2001 RI at five reference area locations adjacent to Sydnes Island (RFW01, RFW02, RFW03, RFW04, RFW05). Site-specific background values were calculated using the arithmetic mean for constituents with 100% f

Bolded values indicate that the maximum detected concentration exceeded this benchmark.Boxed and bolded values indicate that both the average and the maximum detected concentration exceeded this benchmark.Boxed values indicate that only the average concentration exceeded this benchmark; this can occur when the average is greater than the maximum concentration.NA - Not applicable or appropriate for this constituent.-- = Screening benchmark values were not available for these constituents at the time this table was created.AET - Apparent Effects Threshold, Lowest values amound five AET tests is presented.ER-M = Effects range medianER-L = Effects range lowFWCONPEC = Freshwater consensus based probable effect concentrationPEL-FW = Probable effect level - freshwater.PEL-SW = Probable effect level - salt water.LMW PAHs (LPAH) = Sum of all the low molecular weight PAHs: Acenaphthene, Acenaphthylene, Anthracene, Fluorene, 2-Methylnaphthalene, Naphthalene, Phenanthrene.HMW PAHs (HPAH) = Sum of all the high molecular weight PAHs: Benzo(a)anthracene, Benzo(a)pyrene, Benzo(b)fluoranthene, Benzo(k)fluoranthene, Benzo(g,h,i)perylene, Chrysene, Dibenzo(a,h)anthracene, Fluoranthene, Indeno(1,2,3-cd)pyrene, Pyrene.Total PAHs (TPAH) = Total sum of all the PAHs (both low and high molecular weight PAHs).

005070
Constituents Data Group Units

Average 

Concentration 

Maximum 

Concentration

Average 

AVS/SEM 

Ratioa

Maximum 

AVS/SEM 

Ratioa BERA ER-M b,c BERA PEL-SW b,c NOAA ER-L d NOAA ER-M d NOAA AET d

TNRCC 

Sediment 

Benchmarke

BERA 

FWCONPEC b,c

Acid Volatile Sulfide AVS/SEM mg/kg 13.81 140 NA NA NA NA NA NA NA NA NA 

Cadmium AVS/SEM mg/kg 0.11 0.14 0.0083 0.0010 NA NA NA NA NA NA NA Copper AVS/SEM mg/kg 5.89 8.5 0.4268 0.0607 NA NA NA NA NA NA NA 

Lead AVS/SEM mg/kg 10.88 14 0.7882 0.1000 NA NA NA NA NA NA NA Nickel AVS/SEM mg/kg 21.45 44.1 1.5531 0.3150 NA NA NA NA NA NA NA Zinc AVS/SEM mg/kg 36.20 45.6 2.6216 0.3257 NA NA NA NA NA NA NA 1,1'-Biphenyl BNA mg/kg 0.022 0.039 NA NA -- -- -- -- -- -- -- 

3,3'-Dichlorobenzidine BNA mg/kg 0.034 0.049 NA NA -- -- -- -- -- -- -- 

Anthracene LPAH mg/kg 0.0013 0.00009 NA NA 1.10E+00 2.45E-01 8.53E-02 1.10E+00 2.80E-01 8.53E-02 8.45E-01 

Benzaldehyde BNA mg/kg 0.022 0.039 NA NA -- -- -- -- -- -- -- 

Benzo(a)anthracene HPAH mg/kg 0.0036 0.0084 NA NA 1.60E+00 6.93E-01 2.61E-01 1.60E+00 9.60E-01 2.61E-01 1.05E+00 

Benzo(a)pyrene HPAH mg/kg 0.048 0.054 NA NA 1.80E+00 7.63E-01 4.30E-01 1.80E+00 1.10E+00 4.30E-01 1.45E+00 

Benzo(b)fluoranthene HPAH mg/kg 0.014 0.034 NA NA -- -- -- -- 1.80E+00 -- -- Benzo(g,h,i)perylene HPAH mg/kg 0.006 0.017 NA NA -- -- -- -- 6.70E-01 -- -- 

Benzo(k)fluoranthene HPAH mg/kg 0.015 0.033 NA NA -- -- -- -- 1.80E+00 -- -- 

bis(2-Ethylhexyl)phthalate BNA mg/kg 0.034 0.06 NA NA -- 2.65E+00 -- -- 1.30E+00 1.82E-01 -- 

Butylbenzylphthalate BNA mg/kg 0.015 0.027 NA NA -- -- -- -- 6.30E-02 -- -- Caprolactam BNA mg/kg 0.022 0.039 NA NA -- -- -- -- -- -- -- 

Chrysene HPAH mg/kg 0.0031 0.0069 NA NA 2.80E+00 8.46E-01 3.84E-01 2.80E+00 9.50E-01 3.84E-01 1.29E+00 

Diethylphthalate BNA mg/kg 0.0029 0.0033 NA NA -- -- -- -- 2.00E-01 -- -- 

Di-n-butylphthalate BNA mg/kg 0.01 0.0064 NA NA -- -- -- -- 1.40E+00 -- -- Fluoranthene HPAH mg/kg 0.0035 0.0058 NA NA 5.10E+00 1.49E+00 6.00E-01 5.10E+00 1.30E+00 6.00E-01 2.23E+00 

Phenanthrene LPAH mg/kg 0.0015 0.000089 NA NA 1.50E+00 5.44E-01 2.40E-01 1.50E+00 -- 2.40E-01 1.17E+00 

Phenol BNA mg/kg 0.0043 0.008 NA NA -- -- -- -- 4.20E-01 -- -- 

Pyrene HPAH mg/kg 0.01 0.017 NA NA 2.80E+00 1.40E+00 6.65E-01 2.80E+00 2.40E+00 6.65E-01 1.52E+00 

LMW PAHs LPAH mg/kg 0.000179 0.000179 NA NA 3.16E+00 1.44E+00 5.52E-01 3.16E+00 1.20E+00 5.52E-01 -- 

HMW PAHs HPAH mg/kg 0.082800 0.176 NA NA 9.60E+00 6.68E+00 1.70E+00 9.60E+00 7.90E+00 1.70E+00 -- Total PAHs TPAH mg/kg 0.082979 0.176 NA NA 4.48E+01 1.68E+01 4.02E+00 4.48E+01 -- 4.02E+00 2.28E+00 

Aluminum METAL mg/kg 7062.89 8150 NA NA -- -- -- -- -- -- -- 

Antimony METAL mg/kg 0.27 0.27 NA NA -- -- -- -- 9.30E+00 -- -- Arsenic METAL mg/kg 7.13 8.9 NA NA -- -- 8.20E+00 7.00E+01 5.70E+01 8.20E+00 -- 

Barium METAL mg/kg 70.69 115 NA NA -- -- -- -- 4.80E+01 -- -- 

Beryllium METAL mg/kg 0.74 0.89 NA NA -- -- -- -- -- -- -- 

Cadmium METAL mg/kg 0.15 0.26 NA NA -- -- 1.20E+00 9.60E+00 2.70E+00 1.20E+00 -- Calcium METAL mg/kg 3770.05 5580 NA NA -- -- -- -- -- -- -- 

Chromium METAL mg/kg 9.48 11.3 NA NA 3.70E+02 1.60E+02 8.10E+01 3.70E+02 9.60E+01 8.10E+01 1.11E+02 

Cobalt METAL mg/kg 7.79 9.7 NA NA -- -- -- -- -- -- -- 

Copper METAL mg/kg 8.77 10.7 NA NA 2.70E+02 1.08E+02 3.40E+01 2.70E+02 3.90E+02 3.40E+01 1.49E+02 

Iron METAL mg/kg 12791.59 14900 NA NA -- -- -- -- -- -- -- 

Lead METAL mg/kg 12.18 15.1 NA NA 2.18E+02 1.12E+02 4.67E+01 2.18E+02 4.30E+02 4.67E+01 1.28E+02 

Magnesium METAL mg/kg 3678.34 4300 NA NA -- -- -- -- -- -- -- 

Manganese METAL mg/kg 511.43 745 NA NA -- -- -- -- -- -- -- 

Mercury METAL mg/kg 0.04 0.024 NA NA 7.10E-01 7.00E-01 1.50E-01 7.10E-01 4.10E-01 1.50E-01 1.06E+00 

Nickel METAL mg/kg 12.86 15.3 NA NA 5.16E+01 4.28E+01 2.09E+01 5.16E+01 1.10E+02 2.09E+01 4.86E+01 

Potassium METAL mg/kg 2195.85 2460 NA NA -- -- -- -- -- -- -- 

Selenium METAL mg/kg 0.33 0.59 NA NA -- -- -- -- 1.00E+00 -- -- 

Sodium METAL mg/kg 3793.54 5200 NA NA -- -- -- -- -- -- -- 

Vanadium METAL mg/kg 16.44 18.9 NA NA -- -- -- -- -- -- -- 

Zinc METAL mg/kg 36.76 44.2 NA NA 4.10E+02 2.71E+02 1.50E+02 4.10E+02 4.10E+02 1.50E+02 4.59E+02 Tributyltin (TBT) ORGANOTINS mg/kg 0.0033 0.0059 NA NA 1.63E-02 -- -- -- -- -- -- 

Total Organic Carbon TOC mg/kg 7578.40 10200 NA NA NA NA NA NA NA NA NA 

Notes:

a AVS/SEM ratios pertain only to the divialent inorganic constituents and are based on average or maximum SEM concentrations divided by the average or maximum AVS concentration.b CDM Federal Programs Corporation. 2001. Calcasieu Estuary Remedial Investigation/Feasibilty Study: Baseline Ecological Risk Assessment (BERA). Baseline Problem Formulation, Volume I. Prepared for U.S. EPA Region 6. Work Assignment No. 041-RICO-0622. Revised September 2001. Table 9-2.c NOAA. 2002. Query Manager Version 2. Office of Response and Restoration. Calcasieu Estuary Data Set.d NOAA, 1999. Buchman, M.F. 1999. NOAA Screening Quick Reference Tables, NOAA HAZMAT Report 99-1, Seattle, WA. Coastal Protection and Restoration Division. National Oceanic and Atmospheric Administration. 

Table 5-13

Surface Sediment Screening Results (Offshore Area)

Marine Benchmarks Fr

005071
Constituents Data Group Units

Average 

Concentration 

Maximum 

Concentration

Average 

AVS/SEM 

Ratioa

Maximum 

AVS/SEM 

Ratioa BERA ER-M b,c BERA PEL-SW b,c NOAA ER-L d NOAA ER-M d NOAA AET d

TNRCC 

Sediment 

Benchmarke

BERA 

FWCONPEC b,c

Surface Sediment Screening Results (Offshore Area)

Marine Benchmarks Fr

e TNRCC. 2001. Guidance for Conducting Ecological Risk Assessments at Remediation Sites in Texas. RG-263 (revised). Table 3-3.f Site-specific food chain benchmarks for wildlife were derived for only those constituents determined to be bioaccumulative in aquatic sediments according to criteria outlined by the State of Texas (TCEQ, 2001).g Background surface sediments (0 to 6 inches) were sampled during the WESTON 2001 RI at five reference area locations adjacent to Sydnes Island (RFW01, RFW02, RFW03, RFW04, RFW05). Site-specific background values were calculated using the arithmetic mean for constituents with 100% frequency of detection or the maximum detected concentration f

Bolded values indicate that the maximum detected concentration exceeded this benchmark.Boxed and bolded values indicate that both the average and the maximum detected concentration exceeded this benchmark.Boxed values indicate that only the average concentration exceeded this benchmark; this can occur when the average is greater than the maximum concentration.NA - Not applicable or appropriate for this constituent.-- = Screening benchmark values were not available for these constituents at the time this table was created.AVS/SEM = Acid Volatile Sulfide/Simultaneous Extractable MetalAET - Apparent Effects Threshold, Lowest values amound five AET tests is presented.ER-M = Effects range medianER-L = Effects range lowFWCONPEC = Freshwater consensus based probable effect concentrationPEL-FW = Probable effect level - freshwater.PEL-SW = Probable effect level - salt water.LMW PAHs (LPAH) = Sum of all the low molecular weight PAHs: Acenaphthene, Acenaphthylene, Anthracene, Fluorene, 2-Methylnaphthalene, Naphthalene, Phenanthrene.HMW PAHs (HPAH) = Sum of all the high molecular weight PAHs: Benzo(a)anthracene, Benzo(a)pyrene, Benzo(b)fluoranthene, Benzo(k)fluoranthene, Benzo(g,h,i)perylene, Chrysene, Dibenzo(a,h)anthracene, Fluoranthene, Indeno(1,2,3-cd)pyrene, Pyrene.Total PAHs (TPAH) = Total sum of all the PAHs (both low and high molecular weight PAHs).

005072
Constituents Data Group Units

Average 

Concentration 

Maximum 

Concentration

Average 

AVS/SEM 

Ratioa

Maximum AVS/SEM 

Ratioa BERA ER-M b,c BERA PEL-SW b,c NOAA ER-L d NOAA ER-M d NOAA AET d

TNRCC 

Sediment 

Benchmarke

BERA 

FWCONP

Acid Volatile Sulfide AVS/SEM mg/kg 89.93 933 NA NA NA NA NA NA NA NA NA 

Cadmium AVS/SEM mg/kg 0.21 1.49 0.0023 0.0016 NA NA NA NA NA NA NA 

Copper AVS/SEM mg/kg 17.29 313 0.19 0.34 NA NA NA NA NA NA NA 

Lead AVS/SEM mg/kg 38.23 942 0.43 1.01 NA NA NA NA NA NA NA 

Nickel AVS/SEM mg/kg 11.76 85 0.13 0.091 NA NA NA NA NA NA NA 

Zinc AVS/SEM mg/kg 64.92 594 0.72 0.64 NA NA NA NA NA NA NA 

1,1'-Biphenyl BNA mg/kg 0.0191 0.0390 NA NA -- -- -- -- -- -- -- 

2,2'-oxybis (1-Chloropropane) BNA mg/kg 0.0026 0.0140 NA NA -- -- -- -- -- -- -- 

2,4,5-Trichlorophenol BNA mg/kg 0.0058 0.0350 NA NA -- -- -- -- -- -- -- 

2,4,6-Trichlorophenol BNA mg/kg 0.0058 0.0350 NA -- -- -- -- -- -- -- 

2,4-Dichlorophenol BNA mg/kg 0.0042 0.0280 NA NA -- -- -- -- -- -- -- 

2,4-Dimethylphenol BNA mg/kg 0.0059 0.0350 NA NA -- -- -- -- 2.90E-02 -- -- 

2,4-Dinitrophenol BNA mg/kg 0.1237 0.7100 NA NA -- -- -- -- -- -- -- 

2,4-Dinitrotoluene BNA mg/kg 0.0069 0.0430 NA NA -- -- -- -- -- -- -- 

2,6-Dinitrotoluene BNA mg/kg 0.0059 0.0350 NA NA -- -- -- -- -- -- -- 

2-Chloronaphthalene BNA mg/kg 0.0034 0.0210 NA NA -- -- -- -- -- -- -- 

2-Chlorophenol BNA mg/kg 0.0072 0.0420 NA NA -- -- -- -- -- -- -- 

2-Methylnaphthalene LPAH mg/kg 0.0109 0.2500 NA NA 6.70E-01 2.01E-01 7.00E-02 6.70E-01 6.40E-02 7.00E-02 -- 

2-Methylphenol (o-Cresol) BNA mg/kg 0.0016 0.0210 NA NA -- -- -- -- 5.50E-02 -- -- 

2-Nitroaniline (o-Nitroaniline) BNA mg/kg 0.0090 0.0570 NA NA -- -- -- -- -- -- -- 

2-Nitrophenol BNA mg/kg 0.0048 0.0280 NA NA -- -- -- -- -- -- -- 

3,3'-Dichlorobenzidine BNA mg/kg 0.0285 0.0750 NA NA -- -- -- -- -- -- -- 

3-Nitroaniline (m-Nitroaniline) BNA mg/kg 0.0194 0.1100 NA NA -- -- -- -- -- -- -- 

4,6-Dinitro-2-methylphenol BNA mg/kg 0.0332 0.2100 NA NA -- -- -- -- -- -- -- 

4-Bromophenyl-phenylether BNA mg/kg 0.0023 0.0140 NA NA -- -- -- -- -- -- -- 

4-Chloro-3-methylphenol BNA mg/kg 0.0058 0.0350 NA NA -- -- -- -- -- -- -- 

4-Chloroaniline BNA mg/kg 0.0062 0.0350 NA NA -- -- -- -- -- -- -- 

4-Chlorophenyl-phenylether BNA mg/kg 0.0042 0.0280 NA NA -- -- -- -- -- -- -- 

4-Methylphenol (p-Cresol) BNA mg/kg 0.0072 0.0440 NA NA -- -- -- -- 1.10E-01 -- -- 

4-Nitroaniline (p-Nitroaniline) BNA mg/kg 0.0122 0.0710 NA NA -- -- -- -- -- -- -- 

4-Nitrophenol BNA mg/kg 0.0480 0.2800 NA NA -- -- -- -- -- -- -- 

Acenaphthene LPAH mg/kg 0.0057 0.0980 NA NA 5.00E-01 8.89E-02 1.60E-02 5.00E-01 1.30E-01 1.60E-02 -- 

Acenaphthylene LPAH mg/kg 0.0080 0.1500 NA NA 6.40E-01 1.28E-01 4.40E-02 6.40E-01 7.10E-02 4.40E-02 -- 

Acetophenone BNA mg/kg 0.0019 0.0430 NA NA -- -- -- -- -- -- -- 

Anthracene LPAH mg/kg 0.0144 0.1500 NA NA 1.10E+00 2.45E-01 8.53E-02 1.10E+00 2.80E-01 8.53E-02 8.45E-0

Atrazine BNA mg/kg 0.0005 0.0170 NA NA -- -- -- -- -- -- -- 

Benzaldehyde BNA mg/kg 0.0234 0.1100 NA NA -- -- -- -- -- -- -- 

Benzo(a)anthracene HPAH mg/kg 0.0284 0.2300 NA NA 1.60E+00 6.93E-01 2.61E-01 1.60E+00 9.60E-01 2.61E-01 1.05E+Benzo(a)pyrene HPAH mg/kg 0.1424 0.6400 NA NA 1.80E+00 7.63E-01 4.30E-01 1.80E+00 1.10E+00 4.30E-01 1.45E+

Benzo(b)fluoranthene HPAH mg/kg 0.0597 0.8800 NA NA -- -- -- -- 1.80E+00 -- -- 

Benzo(g,h,i)perylene HPAH mg/kg 0.0294 0.3900 NA NA -- -- -- -- 6.70E-01 -- -- 

Benzo(k)fluoranthene HPAH mg/kg 0.0368 0.4100 NA NA -- -- -- -- 1.80E+00 -- -- 

bis(2-Chloroethoxy)methane BNA mg/kg 0.0060 0.0350 NA NA -- -- -- -- -- -- -- 

bis(2-Chloroethyl)ether BNA mg/kg 0.0043 0.0280 NA NA -- -- -- -- -- -- -- 

bis(2-Ethylhexyl)phthalate BNA mg/kg 0.0701 0.0600 NA NA -- 2.65E+00 -- -- 1.30E+00 1.82E-01 -- 

Butylbenzylphthalate BNA mg/kg 0.0293 0.0500 NA NA -- -- -- -- 6.30E-02 -- -- 

Caprolactam BNA mg/kg 0.0242 0.1100 NA NA -- -- -- -- -- -- -- 

Carbazole BNA mg/kg 0.0104 0.2000 NA NA -- -- -- -- -- -- -- 

Chrysene HPAH mg/kg 0.0356 0.5600 NA NA 2.80E+00 8.46E-01 3.84E-01 2.80E+00 9.50E-01 3.84E-01 1.29E+

Dibenz(a,h)anthracene HPAH mg/kg 0.0101 0.1600 NA NA 2.60E-01 1.35E-01 6.34E-02 2.60E-01 2.30E-01 6.34E-02 -- 

Dibenzofuran BNA mg/kg 0.0050 0.0790 NA NA -- -- -- -- 1.10E-01 -- -- 

Diethylphthalate BNA mg/kg 0.0038 0.0210 NA NA -- -- -- -- 2.00E-01 -- -- 

Dimethylphthalate BNA mg/kg 0.0017 0.0010 NA NA -- -- -- -- 7.10E-02 -- -- 

Di-n-butylphthalate BNA mg/kg 0.0083 0.0290 NA NA -- -- -- -- 1.40E+00 -- -- 

Di-n-octylphthalate BNA mg/kg 0.0033 0.0210 NA NA -- -- -- -- 6.20E+00 -- -- 

Fluoranthene HPAH mg/kg 0.0409 0.2400 NA NA 5.10E+00 1.49E+00 6.00E-01 5.10E+00 1.30E+00 6.00E-01 2.23E+

Fluorene LPAH mg/kg 0.0062 0.1100 NA NA 5.40E-01 1.44E-01 1.90E-02 5.40E-01 1.20E-01 1.90E-02 5.36E-0

Hexachlorobenzene BNA mg/kg 0.0036 0.0210 NA NA -- -- -- -- 2.20E-02 -- -- 

Hexachlorobutadiene BNA mg/kg 0.0026 0.0140 NA NA -- -- -- -- 1.30E-03 -- -- 

Hexachlorocyclopentadiene BNA mg/kg 0.0010 0.0210 NA NA -- -- -- -- -- -- -- 

Hexachloroethane BNA mg/kg 0.0036 0.0210 NA NA -- -- -- -- -- -- -- 

Indeno(1,2,3-cd)pyrene HPAH mg/kg 0.0376 0.4500 NA NA -- -- -- -- 6.00E-01 -- -- 

Isophorone BNA mg/kg 0.0036 0.0210 NA NA -- -- -- -- -- -- -- 

Naphthalene LPAH mg/kg 0.0249 0.4000 NA NA 2.10E+00 3.91E-01 1.60E-01 2.10E+00 2.30E-01 1.60E-01 5.61E-0

Nitrobenzene BNA mg/kg 0.0045 0.0280 NA NA -- -- -- -- -- -- -- 

N-Nitroso-di-n-propylamine BNA mg/kg 0.0068 0.0420 NA NA -- -- -- -- -- -- -- 

N-Nitrosodiphenylamine BNA mg/kg 0.0021 0.0140 NA NA -- -- -- -- 2.80E-02 -- -- 

Pentachlorophenol BNA mg/kg 0.0409 0.2100 NA NA -- -- -- -- 3.60E-01 -- -- 

Phenanthrene LPAH mg/kg 0.0366 0.3200 NA NA 1.50E+00 5.44E-01 2.40E-01 1.50E+00 -- 2.40E-01 1.17E+0

Marine Benchmarks 

Table 5-14

Surface Sediment Screening Results (All Locations)

005073