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Daily Reports for Focused Sampling of Flood Impacted Soil and Sediment
Test Results
This page provides reports for each day of focused sampling, from February 16-22, 2006.
February 22, 2006
Samples consisting of soil, sediment, and soil mixed with sediment collected on February 22, 2006 were analyzed for arsenic, benzo(a)pyrene [B(a)P] and lead. Detected levels of arsenic were below the LDEQ RECAP value of 12 mg/kg. B(a)P was detected above LDEQ RECAP value of 330 ug/kg in 4 of 32 samples at levels ranging from 364 ug/kg to 810 ug/kg. Two of the exceedences for B(a)P were from soil samples. One of the exceedences for B(a)P was from a sediment sample. One of the exceedences for B(a)P was from a sample consisting of soil mixed with sediment. Although the levels of B(a)P exceed the RECAP screening value, the levels fall within EPA's risk range of 1 in 1,000,000 to 1 in 10,000 risk of an individual developing cancer over a lifetime from exposure to those concentrations in residential soils. Lead was detected above the LDEQ RECAP value of 400 mg/kg in 8 of 10 samples with concentrations ranging from 467 mg/kg to 3960 mg/kg. All of the exceedences for lead were from soil samples. For lead, more focused analyses of the samples are underway to try to determine the source of the elevated lead, EPA and LDEQ are also working closely together to determine next steps.
February 21, 2006
Samples consisting of soil and soil mixed with sediment collected on February 21, 2006 were analyzed for arsenic, benzo(a)pyrene [B(a)P] and lead. Detected levels of arsenic were below the LDEQ RECAP value of 12 mg/kg. B(a)P was detected above the LDEQ RECAP value of 300 ug/kg in 11 of 43 samples at levels ranging from 346 ug/kg to 1660 ug/kg. Four of the exceedences for B(a)P were from soil samples. The other 7 were from samples consisting of soil mixed with sediment. Although the levels of B(a)P exceed the RECAP screening value, the levels fall within EPA's risk range of 1 in 1,000,000 to 1 in 10,000 risk of an individual developing cancer over a lifetime from exposure to those concentrations in residential soils. Lead was detected above the LDEQ RECAP value of 400 mg/kg in 5 of 10 samples with concentrations ranging from 443 mg/kg to 1060 mg/kg. All exceedences for lead were from samples consisting of soil mixed with sediment. For lead, more focused analyses of the samples are underway to try to determine the source of the elevated lead; EPA and LDEQ are also working closely together to determine next steps.
February 20, 2006
Samples consisting of soil and soil mixed with sediment collected on February 20, 2006 were analyzed for arsenic, benzo(a)pyrene [B(a)P] and lead. Arsenic was detected above the LDEQ RECAP value of 12 mg/kg in 1 of 26 samples at 13.8 ppm. This exceedence for Arsenic was found in a soil sample. B(a)P was detected above the LDEQ RECAP value of 330 ug/kg in 18 of 47 samples at levels ranging from 361 ug/kg to 3810 ug/kg. Ten of the exceedences for B(a)P were from soil samples. The remaining 8 were from samples consisting of soil mixed with sediment. Although the levels of arsenic and B(a)P exceed their RECAP screening values, the levels fall within EPA's risk range of 1 in 1,000,000 to 1 in 10,000 risk of an individual developing cancer over a lifetime from exposure to those concentrations in residential soils. Lead was detected above the LDEQ RECAP value of 400 mg/kg in 12 of 37 samples with concentrations ranging from 427 mg/kg to 1180 mg/kg. Nine of the exceedences for lead were from soil samples. The other 3 were from samples consisting of soil mixed with sediment. For lead, more focused analyses of the samples are underway to try to determine the source of the elevated lead, EPA and LDEQ are also working closely together to determine next steps.
February 19, 2006
Samples consisting of soil and soil mixed with sediment collected on February 19, 2006 were analyzed for arsenic, benzo(a)pyrene [B(a)P] and lead. Detected levels of arsenic were below the LDEQ RECAP value of 12 mg/kg. B(a)P was detected above the LDEQ RECAP value of 330 ug/kg in 14 of 36 samples at levels ranging from 331 ug/kg to 917 ug/kg. Seven of the exceedences for B(a)P were from soil samples. The other 7 were from samples consisting of soil mixed with sediment. Although the levels of B(a)P exceed the RECAP screening value, the levels fall within EPA's risk range of 1 in 1,000,000 to 1 in 10,000 risk of an individual developing cancer over a lifetime from exposure to those concentrations in residential soils. Lead was detected above the LDEQ RECAP value of 400 mg/kg in 11 of 33 samples at levels ranging from 414 mg/kg to 1470 mg/kg. All of the exceedences for lead were from soil samples except 1 (426mg/kg) which was from a sample consisting of soil mixed with sediment. For lead, more focused analyses of the samples are underway to try to determine the source of the elevated lead, EPA and LDEQ are also working closely together to determine next steps.
February 18, 2006
Samples consisting of soil, sediment, and soil mixed with sediment collected on February 18, 2006 were analyzed for arsenic, benzo(a)pyrene [B(a)P] and lead. Detected levels of arsenic were below the LDEQ RECAP value of 12 ppm. B(a)P was detected above the LDEQ RECAP value of 330 ug/kg in 8 of 21 samples at levels ranging from 338 ug/kg to 685 ug/kg. One of the exceedences for B(a)P was from a soil sample. The other 7 were from samples consisting of soil mixed with sediment. Although the levels of B(a)P exceed the RECAP screening value, the levels fall within EPA's risk range of 1 in 1,000,000 to 1 in 10,000 risk of an individual developing cancer over a lifetime from exposure to those concentrations in residential soils. Lead was detected above the LDEQ RECAP value of 400 mg/kg in 11 of 21 samples at levels ranging from 449 mg/kg to 938 mg/kg. Five of the exceedences for lead were from soil samples. The other 6 were from samples consisting of soil mixed with sediment. For lead, more focused analyses of the samples are underway to try to determine the source of the elevated lead, EPA and LDEQ are also working closely together to determine next steps.
February 17, 2006
Samples consisting of soil, sediment, and soil mixed with sediment collected on February 17, 2006 were analyzed for arsenic, benzo(a)pyrene [B(a)P], and lead. Detected levels of arsenic were below the LDEQ RECAP value of 12 mg/kg. B(a)P was detected above the LDEQ RECAP value of 330 ug/kg in 2 of 26 samples at 369 ug/kg and 752 ug/kg. All of the exceedences for B(a)P were from samples consisting of soil mixed with sediment. Although the levels of B(a)P exceed the RECAP screening value, the levels fall within EPA's risk range of 1 in 1,000,000 to 1 in 10,000 risk of an individual developing cancer over a lifetime from exposure to those concentrations in residential soils. Lead was above the LDEQ RECAP value of 400 mg/kg in 1 of 16 samples at 575 mg/kg. This sample consisted of soil mixed with sediment. For lead, more focused analyses of the samples are underway to try to determine the source of the elevated lead, EPA and LDEQ are also working closely together to determine next steps.
On February 17, 2006, ten samples were also collected in the vicinity of the Thompson-Hayward site and analyzed for pesticides. Aldrin was detected above the LDEQ RECAP value of 28 ug/kg in two samples at 44.3 ug/kg and 142 ug/kg. Chlordane was detected above the LDEQ RECAP value of 1600 ug/kg in one sample at 3850 ug/kg. DDD was detected above the LDEQ RECAP value of 2400 ug/kg in two samples at 2910 ug/kg and 4060 ug/kg. DDE was detected above the LDEQ RECAP value of 1700 ug/kg in two samples at 2540 ug/kg and 6480 ug/kg. DDT was detected above the LDEQ RECAP value of 1700 ug/kg in one sample at 3320 ug/kg. Dieldrin was detected above the LDEQ RECAP value of 30 ug/kg in eight samples at levels ranging from 30.7 ug/kg to 1100 ug/kg. Heptachlor was detected above the LDEQ RECAP value of 16 ug/kg in two samples at 23.4 ug/kg and 34.7 ug/kg. Heptachlor epoxide was detected above the LDEQ RECAP value of 53 ug/kg in four samples at levels ranging from 79.8 ug/kg to 683 ug/kg. All of the exceedences for pesticides were from soil samples except two of the Dieldrin samples which were from samples consisting of soil mixed with sediment. Although the levels of these pesticides exceed their respective RECAP screening values, the levels fall within EPA's risk range of 1 in 1,000,000 to 1 in 10,000 risk of an individual developing cancer over a lifetime from exposure to those concentrations in residential soils.
February 16, 2006
Samples consisting of soil and soil mixed with sediment collected on February 16, 2006 were analyzed for arsenic, benzo(a)pyrene [B(a)P] and lead. Detected levels of arsenic were below the LDEQ RECAP value of 12 mg/kg. B(a)P was detected above the LDEQ RECAP value of 330 ug/kg in 4 of 15 samples at levels of 355 ug/kg, 1130 ug/kg, 1320 ug/kg and 15600 ug/kg. All of the exceedences for B(a)P were from samples consisting of soil mixed with sediment. Although the levels of B(a)P exceed the RECAP screening value, the levels of 355 ug/kg, 1130 ug/kg and 1320 ug/kg fall within EPA's risk range of 1 in 1,000,000 to 1 in 10,000 risk of an individual developing cancer over a lifetime from exposure to those concentrations in residential soils. The highest level detected (15600 ug/kg) was at the north end of the Agriculture Street Landfill, and it exceeds EPA's cancer risk range. Lead was detected above the LDEQ RECAP value of 400 mg/kg in 9 of 20 samples at levels ranging from 424 mg/kg to 3070 mg/kg. All of the exceedences for lead were from soil samples.
EPA is working with LDEQ and its other Federal partners to determine the appropriate course of action for the localized area of elevated B(a)P at the north end of the Agriculture Street Landfill. For lead, more focused analyses of samples are underway to try to determine the source of the elevated lead, EPA and LDEQ are also working closely together to determine next steps.