SC DHEC began air monitoring after arriving on site. Air monitoring consisted of five AreaRAEs and MultiRAEs. AreaRAEs were equipped with chlorine, ammonia, hydrogen sulfide, oxygen, volatiles, and LEL sensors. After discussions between EPA and SC DHEC, EPA was asked to conduct water sampling of runoff into Prestwood Lake. Due to continued emissions from the fire, EPA was requested to supplement SC DHEC air monitoring and sampling efforts.
2.1.2 Response Actions to Date
On 2/14/2011 EPA mobilized to the site and mobilized START assets at approximately 2200.
On 2/15/2011 EPA and START arrived on site at approximately 0100 and integrated with local responders, SC DHEC and the PRP. START collected MSDSs, process, inventory and site data from the PRP and developed water sampling locations that consisted of 10 locations representative of the impact to lake Prestwood. EPA and START teams divided into air and water sampling teams. At 1130 sampling equipment arrived on site and water sampling operations began at 1200. Ten water samples were collected and will be analyzed for pH, DO, BOD, COD, RCRA metals and zinc, and NPK (nitrogen, phosphorus, and potassium). Air samples were collected and will be analyzed for RCRA metals plus zinc and asbestos. One asbestos and metal air sample were collected within the plum on the fire site and additional samples were collected downwind within the community. SC DHEC began air monitoring after arriving on site. Air monitoring consisted of five AreaRAEs and MultiRAEs. AreaRAEs were equipped with chlorine, ammonia, hydrogen sulfide, oxygen, volatiles, and LEL sensors. SC DHEC air monitoring did not detect any levels of concern. During boat operations for water sampling there was a visible impact to the lake but no observations were made of impacted wildlife.
On 02/16/2011 SC DHEC will continue air monitoring operations and conduct water sampling. EPA is collecting sediment samples in shallow waters in the area of the fire site and upstream at the request of the DOI. EPA is conducting water quality monitoring which includes Dissolved Oxygen, pH, turbidity and conductivity. EPA will collect an additional asbestos air sample along with additional metal air samples which will be analyzed for metals (speciating hexavalent and trivalent chrome). EPA and SC DHEC are coordinating with PRP, Agrium US Inc, to allow them to split samples.
2.1.3 Enforcement Activities, Identity of Potentially Responsible Parties (PRPs)
The PRP filed the initial NRC Report but it is unclear as to the magnitude of response that they are able to provide to firefighting measures.