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Home My WebLink AboutWQ0014357_2007 Annual Report_20080110(f2 / 2.D16, gee January 10, 2008 Mr. Peter Pozzo NCDENR, Division of Water Quality Groundwater Protection, Permits and Compliance Unit 1636 Mail Service Center Raleigh, North Carolina 27699-1636 RE: 2007 Annual Operating Report Groundwater Remediation Permit No. WQ0014357 Aberdeen Pesticide Dumps Site - Route 211 Area Aberdeen, North Carolina ° Dear Mr. Pozzo: On behalf of Syngenta Crop Protection, Inc. and Olin Corporation, please find enclosed one copy of the 2007 Annual Operating Report for the groundwater extraction, treatment and discharge system located at the Route 211 Area of the Aberdeen Pesticide . Dumps Site. Information provided in this letter report includes: • Site layout (Figure 1) and analytical monitoring requirements summary (Table 1); • Influent and effluent analytical results summary (Tables 2 and 3); • Monitoring well analytical results summary (Table 4); • Completed copies of NCDENR Division of Water Quality, Groundwater Section form GW- 59 and analytical laboratory data reports (Attachment 1). The treatment system was inspected monthly, and influent and effluent samples were collected) semi-annually (June 22, 2007 and December 4, 2007) in accordance with the permit. These results are summarized in Tables 2 and 3. The treatment system performed as designed during 2007 and experienced minimal downtime. The system operates 24 hours per day, and a total of 1,553,305 gallons of groundwater were treated during the reporting period (January 2007 to December 2007). Groundwater extraction rates averaged approximately 3.0 gpm or 4,256 gpd during the monitoring period. The groundwater extraction and treatment system has extracted and treated 16,849,836 gallons of groundwater since it was placed in operation in January 1998. The treatment system removal efficiency was greater than 95% (see Tables 2 and 3). URS Corporation 11 Brendan Way Suite 140 Greenville, SC 29615 Tel 864.609.9111 Fax: 864.609.9069 www.urscorp.com Aberdeen Pesticide Dumps Site - Route 211 Area Aberdeen, North Carolina 2007 Annual Operating Report Permit No. WQ0014357 URS Corporation, Inc. • Page 2 of 2 Pumping of extraction well RT-PW-01 continues to fulfill the closed -loop requirement of the Site Groundwater Remediation Permit. One upgradient well, MW-1 (RT-MW-12), and two sidegradient wells, MW-2 and MW-3 (05-MW-01 and RT-MW-05, respectively), were sampled in December 2007. Each groundwater sample was analyzed for TCL pesticides. Analytical results are summarized in Table 4. Copies of the analytical reports are included with the completed GW-59 forms provided as attachments. Information provided in the Attachment to this submittal is intended to fulfill the annual reporting requirements described in Section IV, items 1 - 4 and 13, of the Site Groundwater Remediation Permit issued January 25, 2007. If you require additional copies of the enclosed materials or have any questions, please contact me at (864) 527-4756. Sincerely, URS Corporation Ted Volskay Attachments: GW-59 Forms Analytical reports cc: Luis Flores - USEPA Beth Hartzell — NCDENR (cover Letter only) Harold Moats - Syngenta Ray Horn - Olin Howard Grubbs, Esq. - WCS&R Tom Mann - URS URS Corporation 11 Brendan Way Suite 140 Greenville, SC 29615 Tel: 864.609.9111 Fax: 864.609.9069 www.urscorp.com Route 211 Treatment System 2007 Annual Operating Report URS Corporation Januaryl0, 2008 Table 1 Analytical Monitoring Requirements Groundwater Extraction and Treatment System Route 211 Area Annual Operating Report Aberdeen, North Carolina Location Parameters of Analysis Monitoring Frequency (Permit No. WQ0014357) Influent (RT-PW-01) TCL Pesticides & pH Semi-annually (Jan. -June, July- Dec.) Effluent TCL Pesticides & pH Semi-annually (Jan. -June, July- Dec.) MW-1 (RT-MW- 12) TCL Pesticides, pH & Water Level Annually MW-2 (05-MW-01) TCL Pesticides, pH & Water Level Annually MW-3 (RT-MW-05) TCL Pesticides, pH & Water Level Annually Route 211 Treatment System 2007 Annual Operating Report URS Corporation January 10, 2008 Table 2 Treatment System Monitoring Results And Treatment Removal Efficiency (January - June 2007), Route 211 Area Annual Operating Report Aberdeen, North Carolina Monitoring Period Sample Name Date Sampled January - June 2007 Approximate Treatment Removal Efficiency. [(Inf-Eff)/Inf] x 100(1'te 1) Influent 06/22/07 Effluent 06/22/07 Pesticides (ug/L) Aldrin 0.0110 J < 0.00095 91.4% alpha-BHC 0.051 < 0.00038 99.3% alpha -Chlordane < 0.0057 < 0.00038 NA beta-BHC 1.2 < 0.0023 99.8% - p,p-DDD < 0.0077 < 0.0011 NA p,p-DDE < 0.019 < 0.00076 NA p,p-DDT < 0.011 < 0.0011 NA delta-BHC 2.3 < 0.00072 100.0% Dieldrin < 0.0077 < 0.0019 NA Endosulfan I < 0.0057 < 0.00038 NA Endosulfan II < 0.0077' < 0.00076 NA Endosulfan Sulfate < 0.032 < 0.00110 NA Endrin < 0.0077 < 0.00076 NA Endrin Aldehyde < 0.038 < 0.0044 NA Endrin Ketone . < 0.0250 < 0.00082 NA gamma-BHC (Lindane) 0.0074 J < 0.00038 ' 94.9% gamma -Chlordane 0.063 < 0.0061 90.3% Heptachlor < 0.0057 < 0.00038 NA Heptachlor Epoxide 0.033 J < 0.00038 98.8% Methoxychlor ' < 0.057 < 0.0057 NA Toxaphene 3.4_ < 0.057 98.3% System Removal Efficiency: 96.6%" Notes: Note 1: Based on 1/2 method detection limit. Influent pH was 5.60 s.u. Effluent pH was 6.08 s.u. J-estimated value below the sample quantitation limit NA - Not Applicable (Influent concentration below method detection limit) Permit specified removal efficiency: 95% Route 211 Treatment System 2007 Annual Operating Report URS Corporation January 10, 2008 Table 3 Treatment System Monitoring Results And Treatment Removal Efficiency (July - December" 2007) Route 211 Area Annual Operating Report Aberdeen, North Carolina Monitoring Period Sample Name .Date Sampled July - December 2007 Approximate Treatment Removal Efficiency [(Inf-Eff)/InfI x 100(note 1) Influent 12/04/07 Effluent .12/04/07 Pesticides (ug/L) Aldrin 0.0260 J < 0.00078 98.5% alpha-BHC 0.055 0.0011 J ' 98.0% alpha -Chlordane 0.21 < 0.00058 99.9% beta-BHC 2.0 0.0062 99.7% p,p-DDD < 0.015 < 0.00078 NA p,p-DDE < 0.019 < 0.00097 NA p,p-DDT < 0.023 < 0.0012 NA delta-BHC 0.96 0.0032 99.7% Dieldrin < 0.015 < 0.00078 NA Endosulfan I < 0.012 < 0.00058 ' NA Endosulfan ll < 0.015 < 0.00078 NA Endosulfan Sulfate < 0.015 0.00091 J NA Endrin < 0.015 < 0.0,0078 NA Endrin Aldehyde , < 0.077 < 0.0039 NA Endrin Ketone < 0.015 < 0.00078 NA gamma-BHC (Lindane) 0.020 J < 0.00039 99.0% gamma -Chlordane . 0.25 < 0.00058 99.9% Heptachlor < 0.012 < 0.00058 NA - Heptachlor Epoxide 0.10 < 0.00058 99.7% ` Methoxychlor < 0.12 < 0.0058 NA Toxaphene < 3.9 < 0.19 NA System Removal Efficiency: 99.3% Notes: Note 1: Based on 1/2 method detection limit. Influent pH was 5.39 s.u. Effluent pH was 5.33 s.u. J-estimatedvalue below the sample quantitation limit NA - Not Applicable (Influent concentration below method detection limit) Permit specified removal efficiency: 95% Route 211 Treatment System 2007 Annual Operating Report URS Corporation Janumy 10, 2008 Table 4 Monitoring Well Analytical Results Summary Route 211 Area Annual Operating Report Aberdeen, North Carolina Sample Name Sample Event Date Sampled MW-1 (RT-MW-12) Annual 12/04/07 MW-2 (05-MW-01) Annual 12/04/07 MW-3 (RT-MW-05) Annual 12/04/07 . Pesticides (ug/L) Aldrin < 0.00079 < 0.00078 < 0.00079 alpha-BHC 0.0010 J 0.00099 J < 0.00053 alpha -Chlordane < 0.00059 0.0035 < 0.00059 beta-BHC < 0.00079 0.021 < 0.00079 p,p-DDD < 0.00079 < 0.00078 < 0.00079 p,p-DDE < 0.00099 < 0.00097 < 0.00099 p,p-DDT < 0.0012 0.0030 J < 0.0012 delta-BHC < 0.00059 0.0011 J < 0.00059 Dieldrin < 0.00079 < 0.00078 < 0.00079 Endosulfan I < 0.00059 < 0.00058 < 0.00059. Endosulfan II < 0.00079 < 0.00078 < 0.00079 Endosulfan Sulfate < 0.000'79 < 0.00078 < 0.00079 Endrin < 0.00079 < 0.00078 < 0.00079 Endrin Aldehyde < 0.0040 < 0.0039 < 0.0039 Endrin Ketone < 0.00079 < 0.00078 < 0.00079 gamma-BHC (Lindane) < 0.00040 < 0.00039 < 0.00039 gamma -Chlordane < 0.00059 < 0.0058 < 0.00059 Heptachlor . < 0.00059 < 0.00058 < 0.00059 Heptachlor Epoxide < 0.00059 0.0015 J < 0.00059 Methoxychlor < 0.0059 < 0.0058 < 0.0059 Toxaphene < 0.20 < 0.19 < 0.20 MW-1 (RT-MW-12) pH - 4.90 MW-2 (05-MW-01) pH - 5.67 MW-3 (RT-MW-05) pH - 5.18 Note: "J" -estimated value below the sample quantitation limit.