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HomeMy WebLinkAboutWA-770_10686_CA_RPTS_20190213_RMR PERIODIC MONITORING REPORT UST SITES MCAS CHERRY POINT MARINE CORPS AIR STATION CHERRY POINT, NORTH CAROLINA VOLUME I SECOND SEMESTER (JULY 2018 - DECEMBER 2018) CONTRACT NO. N40085-17-D-8330 TASK ORDER NO. N4008518F6086 SDC GROUP, INC. PROJECT NO. 6336 CATLIN ENGINEERS AND SCIENTISTS PROJECT NO. 218001 PREPARED FOR: SDC GROUP, INC. 1108 TIDEWATER DRIVE NORFOLK, VIRGINIA Prepared By: 220 Old Dairy Road Wilmington, NC 28405 (910) 452-5861 CORPORATE LICENSURE NO. FOR ENGINEERING SERVICES C-0585 NC CORPORATE NUMBER FOR GEOLOGY SERVICES : C-118 MCAS Cherry Point FY-18; 218001VOL1.RPT42 CATLIN Engineers and Scientists CATLIN Project No. 218001 February 2019 TABLE OF CONTENTS PERIODIC MONITORING REPORT MCAS CHERRY POINT UST CLOSURE AND MANAGEMENT PROGRAM FOR UST SITES SITES AT MCAS CHERRY POINT, NORTH CAROLINA INTRODUCTION NARRATIVE TABLE I INDEX OF SITES FOR THIS REPORT TABLE II CAMP SAMPLING SCHEDULE TABLE III INDEX OF CLOSED SITES SINCE 1998 TABLE IV HISTORY OF NC REGULATORY STANDARDS TABLE V INDEX OF INJECTION PERMIT SITES TABLE VI FREE PRODUCT RECOVERY TOTAL (LAST TWO YEARS) FIGURE I FACILITY LOCATIONS MAP FIGURE II MCAS CHERRY POINT SITE LOCATIONS MAP 1.0 SITE 121 EXECUTIVE SUMMARY 2.0 SITE 130 EXECUTIVE SUMMARY TABLE 2.1A SITE 130 FIELD MEASUREMENTS TABLE 2.1B SITE 130 HISTORICAL FIELD MEASUREMENT DATA TABLE 2.2A SITE 130 GROUNDWATER LABORATORY ANALYTICAL RESULTS - SM 6200B TABLE 2.2B SITE 130 HISTORICAL GROUNDWATER LABORATORY ANALYTICAL RESULTS - SM 6200B TABLE 2.3A SITE 130 GROUNDWATER LABORATORY ANALYTICAL RESULTS - EPA METHOD 610 BY EPA METHOD 625 TABLE 2.3B SITE 130 HISTORICAL GROUNDWATER LABORATORY ANALYTICAL RESULTS - EPA METHOD 610 BY EPA METHOD 625 TABLE 2.4 SITE 130/3996 EFFLUENT AIR LABORATORY ANALYTICAL RESULTS FIGURE 2.1 SITE 130 FREE PRODUCT PLUME MAP AS OF AUGUST 2018 FIGURE 2.2 SITE 130 SM 6200B COLORIMETRY AND PLUME IN EXCESS OF 2L – UST COMPOUNDS AS OF AUGUST 2018 FIGURE 2.3 SITE 130 EPA METHOD 610 BY EPA METHOD 625 COLORIMETRY AND PLUME IN EXCESS OF 2L AS OF AUGUST 2018 MCAS Cherry Point FY-18; 218001VOL1.RPT42 CATLIN Engineers and Scientists CATLIN Project No. 218001 February 2019 TABLE OF CONTENTS – continued 3.0 SITE 133 EXECUTIVE SUMMARY TABLE 3.1A SITE 133 FIELD MEASUREMENTS TABLE 3.1B SITE 133 HISTORICAL FIELD MEASUREMENT DATA TABLE 3.2A SITE 133 GROUNDWATER LABORATORY ANALYTICAL RESULTS - SM 6200B TABLE 3.2B SITE 133 HISTORICAL GROUNDWATER LABORATORY ANALYTICAL RESULTS - SM 6200B TABLE 3.3A SITE 133 GROUNDWATER LABORATORY ANALYTICAL RESULTS - EPA METHOD 610 BY EPA METHOD 625 TABLE 3.3B SITE 133 HISTORICAL GROUNDWATER LABORATORY ANALYTICAL RESULTS - EPA METHOD 610 BY EPA METHOD 625 TABLE 3.4 SITE 133 HISTORICAL EFFLUENT LABORATORY ANALYTICAL RESULTS FIGURE 3.1 SITE 133 FREE PRODUCT PLUME MAP AS OF AUGUST 2018 FIGURE 3.2A SITE 133 SM 6200B COLORIMETRY AND PLUME IN EXCESS OF 2L – UST COMPOUNDS AS OF AUGUST 2018 – UPPER SURFICAL AQUIFER FIGURE 3.2B SITE 133 SM 6200B COLORIMETRY AND PLUME IN EXCESS OF 2L – UST COMPOUNDS AS OF FEBRUARY 2018 – LOWER SURFICAL AQUIFER FIGURE 3.3 SITE 133 EPA METHOD 610 BY EPA METHOD 625 COLORIMETRY AND PLUME IN EXCESS OF 2L AS OF AUGUST 2018 – UPPER SURFICAL AQUIFER 4.0 SITE 137 EXECUTIVE SUMMARY TABLE 4.1 SITE 137 HISTORICAL FIELD MEASUREMENT DATA TABLE 4.2 SITE 137 HISTORICAL GROUNDWATER LABORATORY ANALYTICAL RESULTS - SM 6200B TABLE 4.3 SITE 137 HISTORICAL GROUNDWATER LABORATORY ANALYTICAL RESULTS - EPA METHOD 610 BY EPA METHOD 625 TABLE 4.4 SITE 137 EFFLUENT AIR LABORATORY ANALYTICAL RESULTS TABLE 4.5 SITE 137 HISTORICAL EFFLUENT LABORATORY ANALYTICAL RESULTS FIGURE 4.1 SITE 137 FREE PRODUCT PLUME MAP AS OF DECEMBER 2018 5.0 SITE 1083 EXECUTIVE SUMMARY TABLE 5.1A SITE 1083 FIELD MEASUREMENTS TABLE 5.1B SITE 1083 HISTORICAL FIELD MEASUREMENT DATA TABLE 5.2A SITE 1083 GROUNDWATER LABORATORY ANALYTICAL RESULTS - EPA METHOD 602 BY SM 6200B MCAS Cherry Point FY-18; 218001VOL1.RPT42 CATLIN Engineers and Scientists CATLIN Project No. 218001 February 2019 TABLE OF CONTENTS – continued 5.0 SITE 1083 - (cont.) TABLE 5.2B SITE 1083 HISTORICAL GROUNDWATER LABORATORY ANALYTICAL RESULTS - EPA METHOD 602 BY SM 6200B TABLE 5.3A SITE 1083 GROUNDWATER LABORATORY ANALYTICAL RESULTS - EPA METHOD 610 BY EPA METHOD 625 TABLE 5.3B SITE 1083 HISTORICAL GROUNDWATER LABORATORY ANALYTICAL RESULTS - EPA METHOD 610 BY EPA METHOD 625 AND EPA METHOD 8260B (NAPHTHALENE ONLY) FIGURE 5.1 SITE 1083 FREE PRODUCT PLUME MAP AS OF AUGUST 2018 FIGURE 5.2 SITE 1083 EPA METHOD 602 BY SM 6200B COLORIMETRY AND PLUME IN EXCESS OF 2L AS OF AUGUST 2018 FIGURE 5.3 SITE 1083 EPA METHOD 610 BY EPA METHOD 625 COLORIMETRY AND PLUME IN EXCESS OF 2L AS OF AUGUST 2018 6.0 SITE 1640 EXECUTIVE SUMMARY TABLE 6.1A SITE 1640 FIELD MEASUREMENTS TABLE 6.1B SITE 1640 HISTORICAL FIELD MEASUREMENT DATA TABLE 6.2A SITE 1640 GROUNDWATER LABORATORY ANALYTICAL RESULTS - EPA METHOD 602 BY SM 6200B TABLE 6.2B SITE 1640 HISTORICAL GROUNDWATER LABORATORY ANALYTICAL RESULTS - EPA METHOD 602 BY SM 6200B TABLE 6.3A SITE 1640 GROUNDWATER LABORATORY ANALYTICAL RESULTS - EPA METHOD 610 BY EPA METHOD 625 TABLE 6.3B SITE 1640 HISTORICAL GROUNDWATER LABORATORY ANALYTICAL RESULTS - EPA METHOD 610 BY EPA METHOD 625 TABLE 6.4A SITE 1640 GROUNDWATER LABORATORY ANALYTICAL RESULTS – MADEP VPH/EPH TABLE 6.4B SITE 1640 HISTORICAL GROUNDWATER LABORATORY ANALYTICAL RESULTS – MADEP VPH/EPH FIGURE 6.1 SITE 1640 FREE PRODUCT PLUME MAP AS OF AUGUST 2018 FIGURE 6.2A SITE 1640 EPA METHOD 602 BY SM 6200B COLORIMETRY AND PLUME IN EXCESS OF 2L AS OF AUGUST 2018– UPPER SURFICIAL AQUIFER FIGURE 6.2B SITE 1640 EPA METHOD 602 BY SM 6200B COLORIMETRY AND PLUME IN EXCESS OF 2L AS OF FEBRUARY 2018 – LOWER SURFICIAL AQUIFER FIGURE 6.3A SITE 1640 EPA METHOD 610 BY EPA METHOD 625 COLORIMETRY AND PLUME IN EXCESS OF 2L AS OF AUGUST 2018 - UPPER SURFICIAL AQUIFER FIGURE 6.3B SITE 1640 EPA METHOD 610 BY EPA METHOD 625 COLORIMETRY AND PLUME IN EXCESS OF 2L AS OF FEBRUARY 2018 – LOWER SURFICIAL AQUIFER MCAS Cherry Point FY-18; 218001VOL1.RPT42 CATLIN Engineers and Scientists CATLIN Project No. 218001 February 2019 TABLE OF CONTENTS – continued 6.0 SITE 1640 - (cont.) FIGURE 6.4A SITE 1640 MADEP VPH/EPH COLORIMETRY AND PLUME IN EXCESS OF 2L AS OF AUGUST 2018 - UPPER SURFICIAL AQUIFER FIGURE 6.4B SITE 1640 MADEP VPH/EPH COLORIMETRY AND PLUME IN EXCESS OF 2L AS OF FEBRUARY 2018 – LOWER SURFICIAL AQUIFER 7.0 SITE 3996 EXECUTIVE SUMMARY TABLE 7.1A SITE 3996 FIELD MEASUREMENTS TABLE 7.1B SITE 3996 HISTORICAL FIELD MEASUREMENT DATA TABLE 7.2A SITE 3996 GROUNDWATER LABORATORY ANALYTICAL RESULTS - SM 6200B TABLE 7.2B SITE 3996 HISTORICAL GROUNDWATER LABORATORY ANALYTICAL RESULTS - SM 6200B TABLE 7.3A SITE 3996 GROUNDWATER LABORATORY ANALYTICAL RESULTS - EPA METHOD 610 BY EPA METHOD 625 TABLE 7.3B SITE 3996 HISTORICAL GROUNDWATER LABORATORY ANALYTICAL RESULTS - EPA METHOD 610 BY EPA METHOD 625 TABLE 7.4 SITE 130/3996 EFFLUENT AIR LABORATORY ANALYTICAL RESULTS FIGURE 7.1 SITE 3996 FREE PRODUCT PLUME MAP AS OF AUGUST 2018 FIGURE 7.2 SITE 3996 SM 6200B COLORIMETRY AND PLUME IN EXCESS OF 2L - UST COMPOUNDS AS OF AUGUST 2018 FIGURE 7.3 SITE 3996 EPA METHOD 610 BY EPA METHOD 625 COLORIMETRY AND PLUME IN EXCESS OF 2L AS OF AUGUST 2018 8.0 SITE 4075 EXECUTIVE SUMMARY TABLE 8.1A SITE 4075 FIELD MEASUREMENTS TABLE 8.1B SITE 4075 HISTORICAL FIELD MEASUREMENT DATA TABLE 8.2A SITE 4075 GROUNDWATER LABORATORY ANALYTICAL RESULTS - SM 6200B TABLE 8.2B SITE 4075 HISTORICAL GROUNDWATER LABORATORY ANALYTICAL RESULTS - SM 6200B TABLE 8.3A SITE 4075 GROUNDWATER LABORATORY ANALYTICAL RESULTS - EPA METHOD 610 BY EPA METHOD 625 TABLE 8.3B SITE 4075 HISTORICAL GROUNDWATER LABORATORY ANALYTICAL RESULTS - EPA METHOD 610 BY EPA METHOD 625 TABLE 8.4 SITE 4075 HISTORICAL EFFLUENT LABORATORY ANALYTICAL RESULTS FIGURE 8.1 SITE 4075 FREE PRODUCT PLUME MAP AS OF AUGUST 2018 MCAS Cherry Point FY-18; 218001VOL1.RPT42 CATLIN Engineers and Scientists CATLIN Project No. 218001 February 2019 TABLE OF CONTENTS – continued 8.0 SITE 4075 - (cont.) FIGURE 8.2A SITE 4075 SM 6200B COLORIMETRY AND PLUME IN EXCESS OF 2L – UST COMPOUNDS AS OF AUGUST 2018 – UPPER SURFICIAL AQUIFER FIGURE 8.2B SITE 4075 SM 6200B COLORIMETRY AND PLUME IN EXCESS OF 2L – UST COMPOUNDS AS OF FEBRUARY 2018 – LOWER SURFICIAL AQUIFER FIGURE 8.3A SITE 4075 EPA METHOD 610 BY EPA METHOD 625 COLORIMETRY AND PLUME IN EXCESS OF 2L AS OF AUGUST 2018 – UPPER SURFICIAL AQUIFER FIGURE 8.3B SITE 4075 EPA METHOD 610 BY EPA METHOD 625 COLORIMETRY AND PLUME IN EXCESS OF 2L AS OF FEBRUARY 2018 – LOWER SURFICIAL AQUIFER 9.0 SITE PIT 6 EXECUTIVE SUMMARY TABLE 9.1 SITE PIT 6 HISTORICAL FIELD MEASUREMENT DATA TABLE 9.2 SITE PIT 6 HISTORICAL GROUNDWATER LABORATORY ANALYTICAL RESULTS - EPA METHOD 602 BY SM 6200B TABLE 9.3 SITE PIT 6 HISTORICAL GROUNDWATER LABORATORY ANALYTICAL RESULTS - EPA METHOD 610 BY EPA METHOD 625 FIGURE 9.1 SITE PIT 6 FREE PRODUCT PLUME MAP AS OF DECEMBER 2018 10.0 SITE PIT 12 EXECUTIVE SUMMARY 11.0 SITE PIT 15 EXECUTIVE SUMMARY TABLE 11.1 SITE PIT 15 HISTORICAL FIELD MEASUREMENT DATA TABLE 11.2A SITE PIT 15 HISTORICAL GROUNDWATER LABORATORY ANALYTICAL RESULTS - EPA METHOD 602 BY SM 6200B TABLE 11.2B SITE PIT 15 HISTORICAL SURFACE WATER LABORATORY ANALYTICAL RESULTS - EPA METHOD 602 BY SM 6200B TABLE 11.3A SITE PIT 15 HISTORICAL GROUNDWATER LABORATORY ANALYTICAL RESULTS - EPA METHOD 610 BY EPA METHOD 625 TABLE 11.3B SITE PIT 15 HISTORICAL SURFACE WATER LABORATORY ANALYTICAL RESULTS - EPA METHOD 610 BY EPA METHOD 625 FIGURE 11.1 SITE PIT 15 FREE PRODUCT PLUME MAP AS OF DECEMBER 2018 MCAS Cherry Point FY-18; 218001VOL1.RPT42 CATLIN Engineers and Scientists CATLIN Project No. 218001 February 2019 TABLE OF CONTENTS – continued 12.0 SITE SEGMENT 20 EXECUTIVE SUMMARY TABLE 12.1 SITE SEGMENT 20 HISTORICAL FIELD MEASUREMENT DATA TABLE 12.2A SITE SEGMENT 20 GROUNDWATER LABORATORY ANALYTICAL RESULTS - SM 6200B TABLE 12.2B SITE SEGMENT 20 HISTORICAL GROUNDWATER LABORATORY ANALYTICAL RESULTS - SM 6200B TABLE 12.3A SITE SEGMENT 20 GROUNDWATER LABORATORY ANALYTICAL RESULTS - EPA METHOD 610 BY EPA METHOD 625 TABLE 12.3B SITE SEGMENT 20 HISTORICAL GROUNDWATER LABORATORY ANALYTICAL RESULTS - EPA METHOD 610 BY EPA METHOD 625 TABLE 12.4A SITE SEGMENT 20 GROUNDWATER LABORATORY ANALYTICAL RESULTS - MADEP VPH/EPH TABLE 12.4B SITE SEGMENT 20 HISTORICAL GROUNDWATER LABORATORY ANALYTICAL RESULTS - MADEP VPH/EPH FIGURE 12.1 SITE SEGMENT 20 FREE PRODUCT PLUME MAP AS OF NOVEMBER 2018 ATTACHMENT A – UPDATED SITE CONCEPTUAL MODEL & GROUDWATER MODEL 13.0 SITE TFB EXECUTIVE SUMMARY TABLE 13.1A SITE TFB FIELD MEASUREMENTS TABLE 13.1B SITE TFB HISTORICAL FIELD MEASUREMENT DATA TABLE 13.2A SITE TFB GROUNDWATER LABORATORY ANALYTICAL RESULTS - SM 6200B TABLE 13.2B SITE TFB HISTORICAL GROUNDWATER LABORATORY ANALYTICAL RESULTS - SM 6200B TABLE 13.3A SITE TFB GROUNDWATER LABORATORY ANALYTICAL RESULTS - EPA METHOD 610 BY EPA METHOD 625 TABLE 13.3B SITE TFB HISTORICAL GROUNDWATER LABORATORY ANALYTICAL RESULTS - EPA METHOD 610 BY EPA METHOD 625 TABLE 13.4 SITE TFB EFFLUENT AIR LABORATORY ANALYTICAL RESULTS FIGURE 13.1 SITE TFB FREE PRODUCT PLUME MAP AS OF AUGUST 2018 FIGURE 13.2A SITE TFB SM 6200B COLORIMETRY AND PLUME IN EXCESS OF 2L AS OF AUGUST 2018 – UPPER SURFICIAL AQUIFER FIGURE 13.2B SITE TFB SM 6200B COLORIMETRY AND PLUME IN EXCESS OF 2L AS OF FEBRUARY 2018 – LOWER SURFICIAL AQUIFER FIGURE 13.2C SITE TFB SM 6200B COLORIMETRY AND PLUME IN EXCESS OF 2L AS OF FEBRUARY 2018 – UPPER YORKTOWN AQUIFER FIGURE 13.3A SITE TFB EPA METHOD 610 BY EPA METHOD 625 COLORIMETRY AND PLUME IN EXCESS OF 2L AS OF AUGUST 2018 – UPPER SURFICIAL AQUIFER MCAS Cherry Point FY-18; 218001VOL1.RPT42 CATLIN Engineers and Scientists CATLIN Project No. 218001 February 2019 TABLE OF CONTENTS – continued 13.0 SITE TFB - (cont.) FIGURE 13.3B SITE TFB EPA METHOD 610 BY EPA METHOD 625 COLORIMETRY AND PLUME IN EXCESS OF 2L AS OF FEBRUARY 2018 – LOWER SURFICIAL AQUIFER FIGURE 13.3C SITE TFB EPA METHOD 610 BY EPA METHOD 625 COLORIMETRY AND PLUME IN EXCESS OF 2L AS OF FEBRUARY 2018 – UPPER YORKTOWN AQUIFER 14.0 SITE TFD EXECUTIVE SUMMARY TABLE 14.1 SITE TFD HISTORICAL FIELD MEASUREMENT DATA TABLE 14.2 SITE TFD HISTORICAL GROUNDWATER LABORATORY ANALYTICAL RESULTS – MADEP VPH/EPH FIGURE 14.1 SITE TFD FREE PRODUCT PLUME MAP AS OF DECEMBER 2018 ATTACHMENT A – PRELIMINARY SITE ASSESSMENT FIGURES 15.0 SITE 2ND LAAD EXECUTIVE SUMMARY TABLE 15.1A SITE 2ND LAAD FIELD MEASUREMENTS TABLE 15.1B SITE 2ND LAAD HISTORICAL FIELD MEASUREMENT DATA TABLE 15.2A SITE 2ND LAAD GROUNDWATER LABORATORY ANALYTICAL RESULTS - EPA METHOD 602 BY SM 6200B TABLE 15.2B SITE 2ND LAAD HISTORICAL GROUNDWATER LABORATORY ANALYTICAL RESULTS - EPA METHOD 602 BY SM 6200B TABLE 15.3A SITE 2ND LAAD GROUNDWATER LABORATORY ANALYTICAL RESULTS - EPA METHOD 610 BY EPA METHOD 625 TABLE 15.3B SITE 2ND LAAD HISTORICAL GROUNDWATER LABORATORY ANALYTICAL RESULTS - EPA METHOD 610 BY EPA METHOD 625 TABLE 15.4A SITE 2ND LAAD GROUNDWATER LABORATORY ANALYTICAL RESULTS - MADEP VPH/EPH TABLE 15.4B SITE 2ND LAAD HISTORICAL GROUNDWATER LABORATORY ANALYTICAL RESULTS - MADEP VPH/EPH TABLE 15.5 SITE 2ND LAAD EFFLUENT AIR LABORATORY ANALYTICAL RESULTS FIGURE 15.1 SITE 2ND LAAD FREE PRODUCT PLUME MAP AS OF AUGUST 2018 FIGURE 15.2 SITE 2ND LAAD EPA METHOD 602 BY SM 6200B COLORIMETRY AND PLUME IN EXCESS OF 2L AS OF AUGUST 2018 FIGURE 15.3 SITE 2ND LAAD EPA METHOD 610 BY EPA METHOD 625 COLORIMETRY AND PLUME IN EXCESS OF 2L AS OF AUGUST 2018 FIGURE 15.4 SITE 2ND LAAD MADEP VPH/EPH COLORIMETRY AND PLUME IN EXCESS OF 2L AS OF AUGUST 2018 MCAS Cherry Point FY-18; 218001VOL1.RPT42 CATLIN Engineers and Scientists CATLIN Project No. 218001 February 2019 INTRODUCTION The purpose of this Periodic Monitoring Report is to present the results of recent monitoring events performed at petroleum release sites located at Marine Corps Air Station Cherry Point (MCAS Cherry Point). Monitoring and reporting is being performed in accordance with the MCAS Cherry Point UST Closure and Management Program adopted by MCAS Cherry Point Environmental Affairs Department. A listing of sites for which sampling results are included in this Periodic Monitoring Report is presented in Table I and locations of these sites are shown on Figure I and Figure II. This Periodic Monitoring Report is designed such that all data and information pertaining to any individual site is contained entirely within one section of the report and each section is devoted entirely to one site. Therefore, each section serves as a stand-alone monitoring report for the respective site. Each section begins with an Executive Summary which provides information about location, monitoring, groundwater hydraulics, free-phase product plumes, dissolved- phase plumes, potential receptors, and remediation at the site. Each Executive Summary is supported by several site-specific tables and figures. MCAS Cherry Point FY-18; 218001VOL1.RPT42 CATLIN Engineers and Scientists CATLIN Project No. 218001 February 2019 TABLE I INDEX OF SITES FOR THIS REPORT SITE NAME NCDEQ INCIDENT NO. SITE LOCATION REPORT SECTION NO. 121 31238 MCAS Cherry Point 1.0 130 31591 MCAS Cherry Point 2.0 133 7144, 9739, 9741 MCAS Cherry Point 3.0 137 6443 MCAS Cherry Point 4.0 1083 9839 MCAS Cherry Point 5.0 1640 9274 MCAS Cherry Point 6.0 3996 31591 MCAS Cherry Point 7.0 4075 6360, 9950, 9140 9276 MCAS Cherry Point 8.0 Pit 6 31501 MCAS Cherry Point 9.0 Pit 12 31356 MCAS Cherry Point 10.0 Pit 15 18715 MCAS Cherry Point 11.0 Segment 20 31312 MCAS Cherry Point 12.0 TFB 6359 MCAS Cherry Point 13.0 TFD 9265 MCAS Cherry Point 14.0 2nd LAAD 38152 MCAS Cherry Point 15.0 MCAS Cherry Point FY-18; 218001VOL1.RPT42 CATLIN Engineers and Scientists CATLIN Project No. 218001 February 2019 TABLE II CAMP SAMPLING SCHEDULE SECTION SITE ID GW MONITORING FREQUENCY PROPOSED SAMPLING DATES AIR SAMPLING FREQUENCY WASTE STREAM SAMPLING FREQUENCY 1 121 No Sampling Planned 2 130 Annual August 2019 Annual - 4th Quarter 2019 NA 3 133 Annual August 2019 NA Annual - 4th Quarter 2019 4 137 Annual February 2019 Annual - 4th Quarter 2019 Annual - 4th Quarter 2019 5 1083 Semi-Annual February 2019 NA NA Semi-Annual August 2019 6 1640 Annual August 2019 NA NA 7 3996 Semi-Annual February 2019 Annual - 4th Quarter 2019 NA Semi-Annual August 2019 8 4075 Semi-Annual - Lower February 2019 NA Annual - 4th Quarter 2019 Semi-Annual - Upper August 2019 9 Pit 6 Annual February 2019 NA NA 10 Pit 12 No Sampling Planned 11 Pit 15 Annual February 2019 NA NA 12 Segment 20 No Sampling Planned 13 TFB Semi-Annual – Lower/York February 2019 Annual - 4th Quarter 2019 NA Semi-Annual Upper– August 2019 14 TFD Annual February 2019 NA NA 15 2nd LAAD Semi-Annual February 2019 Annual - 4th Quarter 2019 NA August 2019 MCAS Cherry Point FY-18; 218001VOL1.RPT42 CATLIN Engineers and Scientists CATLIN Project No. 218001 February 2019 TABLE III INDEX OF CLOSED SITES SINCE 1998 SITE NAME SITE LOCATION NCDEQ INCIDENT NO. DATE CLOSED BY NCDEQ 8048 MCAS Cherry Point Not Issued 2/11/1998 1021 MCAS Cherry Point Not Issued 12/11/1998 1648 MCAS Cherry Point 14837 12/11/1998 497 MCAS Cherry Point 18514 12/18/1998 1779 MCAS Cherry Point Not Issued 12/18/1998 248 MCAS Cherry Point Not Issued 12/18/1998 3916 MCAS Cherry Point Not Issued 1/11/1999 1010 MCAS Cherry Point 19235 3/11/1999 1228 MCAS Cherry Point 19236 3/11/1999 1290 MCAS Cherry Point 19234 3/11/1999 498 MCAS Cherry Point 13133 12/7/1999 160 MCAS Cherry Point 13132 12/7/1999 85 MCAS Cherry Point 11277 2/10/2000 1786-3* MCAS Cherry Point 9273 2/10/2000 491* MCAS Cherry Point 12516 5/7/2000 1005-2 MCAS Cherry Point 8990 5/7/2000 1696 MCAS Cherry Point 14837 5/7/2000 3907* MCAS Cherry Point 14573 5/7/2000 8052 MCAS Cherry Point 7493 8/31/2000 487* MCAS Cherry Point 8308 10/17/2000 3904* MCAS Cherry Point 15120 2/21/2001 MTFP* MCAS Cherry Point 9839 7/26/2001 Old CP Hydrant MCAS Cherry Point Not Issued 8/28/2001 Atlantic Hydrant System MCAS Cherry Point Not Issued 4/2/2002 MCAS Cherry Point FY-18; 218001VOL1.RPT42 CATLIN Engineers and Scientists CATLIN Project No. 218001 February 2019 TABLE III - continued INDEX OF CLOSED SITES SINCE 1998 SITE NAME SITE LOCATION NCDEQ INCIDENT NO. DATE CLOSED BY NCDEQ 1786* MCAS Cherry Point 9373 9/13/2002 Pit 6 MCAS Cherry Point 31023 11/26/2002 296* MCAS Cherry Point 9951 1/22/2003 Hertford #4 MCAS Cherry Point 31069 1/28/2003 TFC* MCAS Cherry Point 6906 3/11/2003 1701 MCAS Cherry Point Not Issued 3/12/2003 3982 MCAS Cherry Point Not Issued 6/9/2003 7012 MCAS Cherry Point 15275 10/20/2003 927* MCAS Cherry Point Not Issued 3/29/2004 Segment 22 JP-5 Pipeline MCAS Cherry Point 31269 5/4/2004 Segment 24 JP-5 Pipeline MCAS Cherry Point 31271 5/5/2004 Segment 2 JP-5 Pipeline MCAS Cherry Point 31272 5/6/2004 Segment 1 JP-5 Pipeline MCAS Cherry Point 31273 5/7/2004 Segment 14 JP-5 Pipeline MCAS Cherry Point 31285 6/2/2004 Segment 15 JP-5 Pipeline MCAS Cherry Point 31287 6/2/2004 Segment 16 JP-5 Pipeline MCAS Cherry Point 31286 6/2/2004 8052/TAFDS MCAS Cherry Point Not Issued 9/9/2004 Lifts A and B MCAS Cherry Point Part of 6360 12/13/2004 Pit 1 MCAS Cherry Point 31390 12/17/2004 82-AT MCAS Cherry Point 32128 6/20/2005 MCAS Cherry Point FY-18; 218001VOL1.RPT42 CATLIN Engineers and Scientists CATLIN Project No. 218001 February 2019 TABLE III – continued INDEX OF CLOSED SITES SINCE 1998 SITE NAME SITE LOCATION NCDEQ INCIDENT NO. DATE CLOSED BY NCDEQ 82-Bogue MCAS Cherry Point Not Issued 9/21/2005 84-Bogue MCAS Cherry Point 32254 9/21/2005 85-Bogue MCAS Cherry Point 32255 9/21/2005 86-Bogue MCAS Cherry Point 32256 9/21/2005 1783* MCAS Cherry Point 9275 10/27/2005 486* MCAS Cherry Point 9264 11/7/2005 1958 MCAS Cherry Point 31600 5/8/2006 MWSS-274 MCAS Cherry Point 85579 8/7/2006 1672* MCAS Cherry Point 6905 3/19/2007 TFB Transfer Lines (Soils Only) MCAS Cherry Point 6359 3/2/2009 TAFDS MCAS Cherry Point 15256 1/5/2010 100 Gates Road MCAS Cherry Point 31974 1/11/2010 1773* MCAS Cherry Point 31691 3/2/2010 P-120 Sec 1 GW1 MCAS Cherry Point 31956 5/5/2010 P-120 Sec 1 GW2 MCAS Cherry Point 31956 5/5/2010 P-120 Sec 2 GW2 MCAS Cherry Point 38073 10/20/2010 56 Gates Road MCAS Cherry Point 38151 12/3/2010 64 Gates Road MCAS Cherry Point 38149 12/13/2010 62 Gates Road MCAS Cherry Point 38157 1/3/2011 29 Gates Road MCAS Cherry Point 38164 1/11/2011 MCAS Cherry Point FY-18; 218001VOL1.RPT42 CATLIN Engineers and Scientists CATLIN Project No. 218001 February 2019 TABLE III – continued INDEX OF CLOSED SITES SINCE 1998 SITE NAME SITE LOCATION NCDEQ INCIDENT NO. DATE CLOSED BY NCDEQ 68 Gates Road MCAS Cherry Point 38150 2/1/2011 66 Gates Road MCAS Cherry Point 38174 3/3/2011 137 Conveyance Piping MCAS Cherry Point 31920 3/14/2011 P-120 Sec 2 GW1 (Fuel Hydrant System) MCAS Cherry Point 38069 6/30/2011 P-120 Sec 2 GW2 MCAS Cherry Point 38069 6/30/2011 24 Gates Road MCAS Cherry Point 38246 10/19/2011 Lanham Housing, Site 621 MCAS Cherry Point 38247 10/19/2011 9 Gates UST MCAS Cherry Point 38266 1/23/2012 NADEP Washrack Pipeline MCAS Cherry Point 93139 4/10/2012 1640 Tarmac MCAS Cherry Point Not Issued 4/12/2012 Lanham Housing, Nash Road MCAS Cherry Point 38338 12/4/2013 78 Catawba, Nugent Cove MCAS Cherry Point 38495 5/29/2014 Tower Valve Box* MCAS Cherry Point 31252 2/19/2015 Pit 12* MCAS Cherry Point 31356 12/19/2017 121* MCAS Cherry Point 31238 10/19/2018 * Indicates site was included in the UST Closure and Management Program MCAS Cherry Point FY-18; 218001VOL1.RPT42 CATLIN Engineers and Scientists CATLIN Project No. 218001 February 2019 TABLE IV HISTORY OF NC REGULATORY STANDARDS Parameter Previous NC 2L Standard (ug/L) Current/Interim NC 2L Standard (ug/L) Effective Change Date of Current/Interim NC 2L Standard Acetic Acid NE 5000 4/4/2018 Acetochlor NE 100 12/1/2010 Acetochlor ESA NE 1000 12/1/2010 Acetochlor OXA NE 1000 12/1/2010 Acetophenone NE 700 4/1/2011 Acrolein NE 4 10/1/2010 Alachlor NE 0.4 8/1/2010 Aldrin NE 0.002 10/1/2010 Ammonia NE 1,500 8/1/2010 Antimony NE 1 8/1/2010 Benzaldehyde NE 700 4/1/2011 Benzyl Alcohol NE 700 10/1/2010 Beryllium NE 4 10/1/2010 Bromomethane NE 10 8/1/2010 Butanol, n- (n-butyl alcohol) NE 700 8/1/2010 Butanol, sec- (sec-butyl alcohol) NE 10,000 10/1/2010 Butanol, tert- (tert-butyl alcohol) NE 10 6/1/2011 Carbazole NE 2 4/1/2011 4-Chlorotoluene NE 24 10/1/2010 Cobalt NE 1 10/1/2010 Dalapon NE 200 8/1/2010 Dibenzofuran NE 28 5/24/1999 1,4-Dibromobenzene NE 70 8/1/2010 Dibromomethane NE 70 10/1/2010 Dichloroacetic Acid NE 0.7 10/1/2010 1,2-Dichloroethylene, mixed isomers NE 60 10/1/2010 2,4-Dichlorophenol NE 0.98 8/1/2010 DDE NE 0.1 8/1/2010 Dinoseb NE 7 8/1/2010 Diphenyl Ether NE 100 4/1/2011 2,4-Dinitrotoluene NE 0.1 4/1/2011 Diquat NE 20 8/1/2010 Endosulfan sulfate NE 40 4/1/2011 MCAS Cherry Point FY-18; 218001VOL1.RPT42 CATLIN Engineers and Scientists CATLIN Project No. 218001 February 2019 TABLE IV – continued HISTORY OF NC REGULATORY STANDARDS Parameter Previous NC 2L Standard (ug/L) Current/Interim NC 2L Standard (ug/L) Effective Change Date of Current/Interim NC 2L Standard Endothall NE 100 8/1/2010 Ethanol (ethyl alcohol) NE 4,000 4/1/2011 Ethyl tert-butyl ether (ETBE) NE 47 4/1/2011 alpha-Hexachlorocyclohexane NE 0.006 4/1/2011 beta-Hexachlorocyclohexane NE 0.02 4/1/2011 2-Hexanone NE 40 4/1/2011 4-Isopropyltoluene (p-cymene) NE 25 4/1/2011 Methyl Isobutyl Ketone NE 100 12/1/2010 Methyl Methacrylate NE 25 8/1/2010 1-Methylnaphthalene NE 1 4/1/2011 2-Methyl phenol (o-cresol) NE 400 4/1/2011 Perchlorate & Perchlorate Salts NE 2 12/1/2010 Perfluorooctanoic acid (PFOA;C8) NE 2 12/6/2006 Picramic Acid NE 0.7 10/1/2010 Polychlorinated Biphenyls NE 0.09 10/1/2010 Propylene Glycol NE 140,000 7/16/2012 Tert-Amyl Methyl Ether (TAME) NE 128 4/1/2011 1,2,4,5-Tetrachlorobenzene NE 2 8/1/2010 1,1,1,2-Tetrachloroethane NE 1 8/1/2010 Thallium NE 0.2 10/1/2010 Tin NE 2,000 10/1/2010 p-Toluic Acid NE 35 4/4/2018 1,1,2-Trichloroethane NE 0.6 8/1/2010 2,4,5-Trichlorophenol NE 63 10/1/2010 2,4,6-Trichlorophenol NE 4 10/1/2010 Vanadium (excluding vanadium pentoxide) NE 0.3 10/1/2010 Vinyl Acetate NE 88 10/1/2010 NE = Not established MCAS Cherry Point FY-18; 218001VOL1.RPT42 CATLIN Engineers and Scientists CATLIN Project No. 218001 February 2019 TABLE V INDEX OF INJECTION PERMIT SITES SITE NAME PERMIT No. INJECTION TYPE DATE PERMIT APPLICATIO N RECEIVED BY NCDEQ DATE PERMIT APPROVED BY NCDEQ DATE PERMIT MODIFIED DATE OF PERMIT EXPIRATION DATE FINAL PROJECT EVALUATION RECEIVED BY NCDEQ NCDEQ CLOSEOUT DATE 121 WI0700208 GW Tracer, Surfactant, nutrients, bacteria 2/3/11 10/6/11 Mod. 6/4/13 Ext. 6/21/11 10/31/11Mo d 6/30/13 Ext. 10/6/11 6/30/18 1/15/15 10/19/18 1083 WQ003574 8 Surfactant Recirculation 1/6/12 Renewal 9/16/13 4/6/12 Renewal 11/8/13 Renewed 11/8/13 Original 3/31/14 Renewed 3/31/19 Not Submitted Yet Not Applicable Yet 1773 WI0700106 Surfactant 5/10/07 8/20/07 Currently None 8/31/09 2/25/09 3/25/11 8049 WI0800160 Surfactant 12/5/08 6/15/09 Mod. 3/25/09 6/16/09 Mod. 6/15/09 2/28/11 6/7/10 4/13/11 8049 WI800336 ORC™ Filter Socks 5/13/13 5/14/13 Currently None Unknown Not Applicable Not Applicable Pit 11 WI0700227 RegenOx™ 5/31/11 7/14/11 Currently None 6/30/13 Report Submitted by EAD 3/20/13 12/19/17 Pit 11 Mod WI0700208 Surfactant, nutrients, bacteria 10/6/11 (Mod. of Bldg. 121 permit) 10/31/11 (Mod. of Bldg. 121 permit) 10/6/11 5/31/13 Report Submitted by EAD 3/20/13 12/19/17 TVB WI0700255 Surfactant, nutrients, bacteria 10/19/11 12/15/11 Currently None 11/31/14 Report Submitted by EAD 7/14/14 7/24/14 2nd LAAD WI0700320 Ambient Air 3/14/13 3/20/13 Currently None Unknown Not Applicable Not Applicable Site 121 130 133 137 1083 1640 3996 4075 B & PIT 12 4075 C PIT 6 PIT 15 SEGMENT 20*TFB TFD *2nd LAAD PIT 11 MCCS Month Product (gal) Product (gal) Product (gal) Product (gal) Product (gal) Product (gal) Product (gal) Product (gal) Product (gal) Product (gal) Product (gal) Product (gal) Product (gal) Product (gal) Product (gal) Product (gal) Product (gal) Jan-17 0 0 0 18 0 0 0 47 550 0 4 0 0 0 0 0 0 Feb-17 0 0 2 11 0 0 0 41 385 0 5 0 0 0 0 0 0 Mar-17 0 0 2 50 0 0 0 72 435 0 13 0 0 0 0 0 0 Apr-17 0 0 0 30 0 0 0 74 310 0 6 0 2 0 0 0 0 May-17 0 0 1 51 0 0 0 91 437 0 6 0 0 0 0 0 0 Jun-17 0 2 2 27 0 0 0 75 349 0 5 0 2 0 0 0 0 Jul-17 0 0 2 41 0 0 0 88 292 0 7 0 0 0 0 0 0 Aug-17 0 0 2 43 0 0 0 59 235 0 5 0 0 0 0.02 0 0 Sep-17 0 0 2 7 1 0 0 14 141 0 3 0 0 0 0 0 0 Oct-17 0 3 4 15 0 0 0 38 222 0 1 0 0 0 0 0 0 Nov-17 0 0 4 15 0 0 0 66 360 0 3 0 0 0 0 0 0 Dec-17 0 0 0 8 0 0 0 58 252 0 4 0 0 0 0 0 0 Jan-18 0 0 4 8 0 0 0 59 225 0 6 0 0 0 0 NA 0 Feb-18 0 0 2 8 0 0 0 46 176 0 2 0 0 0 0 NA 0 Mar-18 NA 0 2 15 0 0 0 74 173 0 2 0 0 0 0 NA 0 Apr-18 NA 0 2 24 0 0 0 75 247 0 2 0 0 0 0 NA 0 May-18 NA 0 4 21 0 0 0 57 223 0 3 0 0 0 0 NA 0 Jun-18 NA 0 2 39 0 0 0 57 230 0 1 0 0 0 0 NA 0 Jul-18 NA 1 3 25 0 0 0 70 275 0 2 0 0 0 0 NA 0 Aug-18 NA 1 8 78 0 0 0 56 179 0 7 0 0 0.19124 0 NA 0 Sep-18 NA 0 2 3 0 0 0 33 97 0 0 0 0 0 0 NA 0 Oct-18 NA 1 7 15 1 0 0 21 129 0 1 0 0 0.25 0 NA 0 Nov-18 NA 1 2 9 0 0 0 7 180 0 2 0 0 0.03905 0 NA 0 Dec-18 NA 0 5 18 0 0 0 5 213 0 3 0 0 0.03124 0 NA 0 Totals 0.00 9.00 64.00 579.00 2.00 0.00 0.00 1,283.00 6,315.00 0.00 93.00 0.00 4.00 0.51 0.02 0.00 0.00 Average 0.00 0.38 2.67 24.13 0.08 0.00 0.00 53.46 263.13 0.00 3.88 0.00 0.17 0.02 0.00 0.00 0.00 TABLE VI FREE PRODUCT RECOVERY TOTAL (LAST TWO YEARS) Note: At sites with free product systems where interim product recovery is performed (i.e. bailing, pumping, etc.), the recovered product is emptied into the system; therefore, the interim product recovery volume is included in the total product volume on this table. * = Free Product currently not being recovered at site. NA = Not Applicable MCAS Cherry Point FY-018; Table VI_FPTotals_thru DEC 2018.xlsx CATLIN Project No. 218001 CATLIN Engineers and Scientists February 2019 ^_MCAS Cherry Point £¤ 58 33 70 £¤17 £¤70 £¤17 ³ Data Source: Adapted from NCOneMaps.com FIGUREPROJECTTITLE JOB NO.DATE SCALE DRAWN BY CHECKED BY IFACILITY LOCATIONS MAP 218001 JAN 2018 NO SCALE THW SAC MCAS CHERRY POINTUST CLOSURE ANDMANAGEMENT PROGRAM S:\GIS Projects\CPLTM\GIS\Sites\CAMP Figure 1.mxd MCAS Cherry Point FY-18; 218001VOL1.RPT42 CATLIN Engineers and Scientists CATLIN Project No. 218001 February 2019 SITE 137 4.0 EXECUTIVE SUMMARY 4.1 SITE INFORMATION Site Location: MCAS Cherry Point Incident Number(s): 6443 NC State Plane Coordinates (NAD83): x = 2,630,735.91; y = 423,629.84 Risk Classification: MCAS temporarily assigned INTERMEDIATE risk due to presence of free-phase product. Source Type(s): JP-5, Waste Oil 4.2 MONITORING EVENT INFORMATION Sampling Performed By: SDC Group, Inc./GES (Annual) Date(s) of This Monitoring Event: No sampling event was conducted during the Second Semester 2018. Date(s) of Previous Monitoring Event: 5/8/2018 Reason(s) for This Monitoring Event: Track migration and/or volume reduction of free-phase product plume. Site Monitoring Status at Time of This Event: Remedial operations monitoring. 4.3 GROUNDWATER HYDRAULICS (Groundwater hydraulic data shown below is representative of the May 2018 Monitoring event.) Hydraulic Conductivity: 4.26 feet/day Effective Porosity: 0.33 Hydraulic Gradient: 0.025 feet/feet Average Linear Groundwater Flow Velocity: 0.0323 feet/day Groundwater Flow Direction: Northwest. See Figure 4.1. Range of Measured Water Table Elevations: Ranges from -0.80 feet in well 51PR44 to 13.56 feet in well 51PR37 during the December 2018 gauging event. See Table 4.1. Significant Changes from Previously Reported Data: None. 4.4 FREE PRODUCT PLUME Free Product Present?: Yes Free Product Thickness Measured: During the Second Semester 2018 December gauging event, 22 wells were gauged, of which seven wells contained free-phase product. Free product thickness ranged from 0.05 feet in 51GW28 to 1.44 feet in monitoring well 51PR36. See Table 4.1. Plume Size and Location: See Figure 4.1. Free Product Removed from Site This Period: 148 gallons Significant Changes from Previously Reported Data: None. Long-term historical trends indicate a general declining trend in the thickness of measureable product in on-site wells. MCAS Cherry Point FY-18; 218001VOL1.RPT42 CATLIN Engineers and Scientists CATLIN Project No. 218001 February 2019 4.5 DISSOLVED-PHASE PLUME Plume Concentrations: Not Applicable. Plume Size and Location: Not Applicable. Significant Changes from Previously Reported Data: No sampling event was conducted during the Second Semester 2018. See Tables 4.2 and 4.3. 4.6 REMEDIAL SYSTEM AIR MONITORING DATA AND EFFLUENT DISCHARGE DATA Air Contaminant Concentrations: See Table 4.4. Effluent Discharge Contaminant Concentrations: Not Applicable. 4.7 POTENTIAL RECEPTORS Contaminated Water Supply Well(s)?: No Potable Water Supply Well Within 1,000 Feet of Source Area?: No Any Water Supply Well Within 250 Feet of Source Area?: No Surface Water Body Within 500 Feet?: No Past Evidence of Vapors?: No Significant Changes from Previously Reported Data?: None 4.8 REMEDIATION Status: System operations have been adjusted within the past year and product recovery volumes have been improving. Eleven vertical recovery wells and one horizontal recovery well are currently operating. Passive recovery of free-phase product is also occurring from on-site monitoring wells. Type: Vertical wells removing free-phase product and water via AP4 total fluids recovery pumps and passive recovery. One horizontal well (HW-C) also removing free-phase product and water. Progress: Ongoing Construction Contractor: Shaw and Rhea Operating Contractor: SDC Group, Inc./GES (SDC) 4.9 OBSERVATIONS AND COMMENTS Historical: The total fluids free-phase product recovery system had significant iron fouling issues throughout the conveyance line network. System modifications were installed to facilitate periodic conveyance line cleaning, in an effort to keep the system operational. In March 2012, CATLIN prepared and submitted a Workplan for system upgrades which included installation of five new vertical recovery wells (four within existing vault boxes and one in a new vault box). Additionally, the Workplan included modifications to deepen the three existing vertical recovery wells D1, D2, and D3 and install one additional Type II monitoring well. Rhea was tasked with upgrading the system and contracted CATLIN to install MCAS Cherry Point FY-18; 218001VOL1.RPT42 CATLIN Engineers and Scientists CATLIN Project No. 218001 February 2019 the recovery wells and monitoring well. Well installation was conducted from mid-October 2012 to mid-November 2012. System upgrades were completed by Rhea in mid-December 2012 and the upgraded system began operation in mid- December 2012. The upgraded system operated from mid-December 2012 until April 23, 2013 at which time a leak occurred in one of the effluent lines and the system had to be shut down. The repair to the effluent line was completed in October 2013 and the system was restarted on October 30, 2013. The system was generally operational from November 2013 through December 2014 with periodic shutdowns due to iron fouling issues and maintenance. During the 2014 calendar year approximately 109 gallons of free-phase product was recovered at the subject site. During the First Semester 2015, 86 gallons of free-phase product was recovered from the on-site remedial system. CATLIN and SDC/GES continued to evaluate and investigate the lack of free-phase product recovery at the subject site. It was decided that a 72-hour pumping test be conducted in the near future at one central well location at the subject site. To effectively conduct the test, the total fluids recovery system would be shut down. The data collected from the pumping test would be utilized to develop a plan to optimize free-phase product recovery. During the Second Semester 2015, only six gallons of free-phase product was recovered from the on-site remedial system. As of December 2015, the 72-hour pumping test had not yet been conducted at the subject site as it was determined that the 1.5” diameter discharge line associated with the remedial system was severely clogged and needs to be replaced with a 3” diameter discharge line before the pumping test is conducted. During the First Semester 2016, 57 gallons of free-phase product was recovered at the subject site. This increase in recovered product is the result of implementing passive recovery efforts that began in February 2016. The majority of the product recovered during the First Semester 2016 was from passive recovery efforts as the system was still not operating at optimal efficiency. During the Second Semester 2016, 65 gallons of free-phase product was recovered at the subject site. The on-site remediation system accounted for approximately half of the product recovered during the Second Semester 2016 and the other half being from passive recovery efforts. The on-site remediation system was adjusted and product recovery improved; however, the system was still not operating at optimal efficiency. As of January 2017, the discharge line associated with the remedial system was still in need of replacement. During the First Semester 2017, 187 gallons of free-phase product was recovered at the subject site. The on-site remediation system accounted for 132 gallons of the recovery while 55 gallons was recovered via passive efforts. The on-site remediation system was adjusted and product recovery improved significantly. However, as of June 2017, the discharge line associated with the remedial system was still in need of replacement, once this replacement is completed system performance should further improve. MCAS Cherry Point FY-18; 218001VOL1.RPT42 CATLIN Engineers and Scientists CATLIN Project No. 218001 February 2019 During the Second Semester 2017, approximately 129 gallons of free-phase product was recovered at the subject site. The on-site remediation system accounted for approximately 61 gallons of the recovery while approximately 68 gallons was recovered via passive efforts. The on-site remediation system continues to be adjusted and product recovery has improved over the past year (starting in the fall of 2016). A project to refine the extent of free-phase product at this site was completed in November 2017. An updated Conceptual Site Model has been prepared which indicates that the free-phase product and gross contamination has been generally horizontally and vertically delineated at the subject site. The updated Conceptual Site Model will be utilized to evaluate numerous remediation technologies/alternatives to address the remaining free-phase product at the subject site. Also, at the end of November 2017, horizontal recovery well HW-C was reactivated. During the First Semester 2018, approximately 115 gallons of free-phase product was recovered at the subject site. The on-site remediation system accounted for approximately 66 gallons of the recovery while approximately 49 gallons was recovered via passive efforts. The on-site remediation system continued to be adjusted and product recovery from the system improved slightly over the past semester which may be attributable to the reactivation of HW-C. A groundwater sampling event of select, on-site wells was conducted in May 2018. The analytical results revealed that the dissolved-phase contaminant concentrations were fairly consistent (i.e. no significant increases or decreases) and the plumes were generally stable. Current: During the Second Semester 2018, approximately 148 gallons of free- phase product was recovered at the subject site. The on-site remediation system accounted for approximately 117 gallons of the recovery while approximately 31 gallons was recovered via passive efforts. The on-site remediation system continues to be adjusted and product recovery has improved over the past semester which is likely attributable to the reactivation of HW-C. As stated above, the updated Conceptual Site Model will be utilized to evaluate numerous remediation technologies/alternatives to address the remaining free- phase product at the subject site. In the interim, the remediation system will continue to operate and passive recovery of free-phase product will also continue to be conducted. In addition, the next groundwater sampling event is planned for February 2019 at the subject site. TABLE 4.1 SITE 137 HISTORICAL FIELD MEASUREMENT DATA Well ID Date Corrected GWT ElevationProduct ThicknessTOCStickupDTW/DTP DTW/DTP BGS 12.69NMT51GW05 5/8/2018 19.9 -0.16 7.21 7.37 12.62NMT51GW06 5/8/2018 19.52 -0.25 6.9 7.15 12.82NMT51GW07 5/8/2018 18.89 -0.71 6.07 6.78 13.54NMT51GW08 5/8/2018 20.34 -0.3 6.8 7.10 13.52NMT51GW10 5/8/2018 20.46 -0.62 6.94 7.56 12.050.0151GW12 2/14/2018 21.33 -0.34 9.28 9.62 11.580.3151GW12 3/1/2018 21.33 -0.34 9.69 10.03 11.832.0951GW12 4/2/2018 21.33 -0.34 9.12 9.46 11.590.1051GW12 5/8/2018 21.33 -0.34 9.72 10.06 11.391.1251GW12 6/8/2018 21.33 -0.34 9.74 10.08 11.471.2151GW12 7/12/2018 21.33 -0.34 9.64 9.98 11.601.6651GW12 8/2/2018 21.33 -0.34 9.43 9.77 11.502.0851GW12 9/5/2018 21.33 -0.34 9.46 9.80 12.370.0251GW12 10/11/2018 21.33 -0.34 8.96 9.30 11.620.1351GW12 12/6/2018 21.33 -0.34 9.69 10.03 11.98NMT51GW13 2/14/2018 19.22 -0.64 7.24 7.88 11.08NMT51GW13 3/1/2018 19.22 -0.64 8.14 8.78 11.10NMT51GW13 4/2/2018 19.22 -0.64 8.12 8.76 11.30NMT51GW13 5/8/2018 19.22 -0.64 7.92 8.56 11.22NMT51GW13 6/8/2018 19.22 -0.64 8 8.64 11.61NMT51GW13 7/12/2018 19.22 -0.64 7.61 8.25 12.18NMT51GW13 8/2/2018 19.22 -0.64 7.04 7.68 11.59NMT51GW13 9/5/2018 19.22 -0.64 7.63 8.27 12.49NMT51GW13 10/11/2018 19.22 -0.64 6.73 7.37 11.39NMT51GW13 11/19/2018 19.22 -0.64 7.83 8.47 11.34NMT51GW13 12/6/2018 19.22 -0.64 7.88 8.52 12.18NMT51GW14 5/8/2018 18.56 -0.78 6.38 7.16 Notes: 1. NMT = No Measurable Thickness 2. NM = Not Measured 3. Data in BOLD ITALICS indicates measurable thicknesses of product detected 4. TBM = To Be Measured 5. Corrected GW Elevation based on Specific Gravity of JP-5 (0.82) Page 1BOLD ITALICS TABLE 4.1 SITE 137 HISTORICAL FIELD MEASUREMENT DATA Well ID Date Corrected GWT ElevationProduct ThicknessTOCStickupDTW/DTP DTW/DTP BGS 12.570.7351GW16 2/14/2018 21.03 -0.25 8.33 8.58 11.850.0551GW16 3/1/2018 21.03 -0.25 9.17 9.42 11.810.0751GW16 4/2/2018 21.03 -0.25 9.21 9.46 12.110.5351GW16 5/8/2018 21.03 -0.25 8.82 9.07 12.080.4551GW16 6/8/2018 21.03 -0.25 8.87 9.12 11.860.2551GW16 7/12/2018 21.03 -0.25 9.13 9.38 12.240.4351GW16 8/2/2018 21.03 -0.25 8.71 8.96 12.000.2451GW16 9/5/2018 21.03 -0.25 8.99 9.24 12.670.8551GW16 10/11/2018 21.03 -0.25 8.21 8.46 12.070.1251GW16 11/19/2018 21.03 -0.25 8.94 9.19 12.260.2151GW16 12/6/2018 21.03 -0.25 8.73 8.98 12.78NMT51GW17 5/8/2018 20.73 -0.24 7.95 8.19 13.71NMT51GW18 5/8/2018 19.62 -0.5 5.91 6.41 13.76NMT51GW20 5/8/2018 20.85 -0.26 7.09 7.35 12.50NMT51GW24 5/8/2018 22.43 -0.34 9.93 10.27 13.32NMT51GW25 5/8/2018 23.3 -0.27 9.98 10.25 13.82NMT51GW26 5/8/2018 23.27 -0.27 9.45 9.72 12.330.0251GW27 2/14/2018 22.56 -0.49 10.23 10.72 12.920.0351GW27 3/1/2018 22.56 -0.49 9.63 10.12 12.361.4951GW27 4/2/2018 22.56 -0.49 9.93 10.42 11.900.0751GW27 5/8/2018 22.56 -0.49 10.65 11.14 12.001.0551GW27 6/8/2018 22.56 -0.49 10.37 10.86 12.080.5951GW27 7/12/2018 22.56 -0.49 10.37 10.86 12.330.7851GW27 8/2/2018 22.56 -0.49 10.09 10.58 12.120.5951GW27 9/5/2018 22.56 -0.49 10.33 10.82 12.74NMT51GW27 10/11/2018 22.56 -0.49 9.82 10.31 12.180.0251GW27 11/19/2018 22.56 -0.49 10.38 10.87 12.94NMT51GW27 12/6/2018 22.56 -0.49 9.62 10.11 Notes: 1. NMT = No Measurable Thickness 2. NM = Not Measured 3. Data in BOLD ITALICS indicates measurable thicknesses of product detected 4. TBM = To Be Measured 5. Corrected GW Elevation based on Specific Gravity of JP-5 (0.82) Page 2BOLD ITALICS TABLE 4.1 SITE 137 HISTORICAL FIELD MEASUREMENT DATA Well ID Date Corrected GWT ElevationProduct ThicknessTOCStickupDTW/DTP DTW/DTP BGS 13.340.2651GW28 2/14/2018 23.24 -0.35 9.85 10.20 12.830.0451GW28 3/1/2018 23.24 -0.35 10.4 10.75 12.510.0851GW28 4/2/2018 23.24 -0.35 10.72 11.07 12.920.0651GW28 5/8/2018 23.24 -0.35 10.31 10.66 12.780.1251GW28 6/8/2018 23.24 -0.35 10.44 10.79 12.710.1251GW28 7/12/2018 23.24 -0.35 10.51 10.86 13.510.1451GW28 8/2/2018 23.24 -0.35 9.7 10.05 12.910.0351GW28 9/5/2018 23.24 -0.35 10.32 10.67 13.580.1551GW28 10/11/2018 23.24 -0.35 9.63 9.98 13.110.0251GW28 11/19/2018 23.24 -0.35 10.13 10.48 13.060.0551GW28 12/6/2018 23.24 -0.35 10.17 10.52 12.271.8951GW29 2/14/2018 20.77 -0.45 8.16 8.61 12.760.3951GW29 3/1/2018 20.77 -0.45 7.94 8.39 11.203.0951GW29 4/2/2018 20.77 -0.45 9.01 9.46 11.591.6051GW29 5/8/2018 20.77 -0.45 8.89 9.34 11.581.5151GW29 6/8/2018 20.77 -0.45 8.92 9.37 11.601.5451GW29 7/12/2018 20.77 -0.45 8.89 9.34 12.071.7951GW29 8/2/2018 20.77 -0.45 8.38 8.83 11.862.3551GW29 9/5/2018 20.77 -0.45 8.49 8.94 12.501.0951GW29 10/11/2018 20.77 -0.45 8.07 8.52 13.720.5151GW29 11/19/2018 20.77 -0.45 6.96 7.41 11.990.8451GW29 12/6/2018 20.77 -0.45 8.63 9.08 Notes: 1. NMT = No Measurable Thickness 2. NM = Not Measured 3. Data in BOLD ITALICS indicates measurable thicknesses of product detected 4. TBM = To Be Measured 5. Corrected GW Elevation based on Specific Gravity of JP-5 (0.82) Page 3BOLD ITALICS TABLE 4.1 SITE 137 HISTORICAL FIELD MEASUREMENT DATA Well ID Date Corrected GWT ElevationProduct ThicknessTOCStickupDTW/DTP DTW/DTP BGS 13.41NMT51GW30 2/14/2018 22.63 -0.69 9.22 9.91 13.16NMT51GW30 3/1/2018 22.63 -0.69 9.47 10.16 12.74NMT51GW30 4/2/2018 22.63 -0.69 9.89 10.58 13.16NMT51GW30 5/8/2018 22.63 -0.69 9.47 10.16 13.12NMT51GW30 6/8/2018 22.63 -0.69 9.51 10.20 13.07NMT51GW30 7/12/2018 22.63 -0.69 9.56 10.25 13.24NMT51GW30 8/2/2018 22.63 -0.69 9.39 10.08 13.06NMT51GW30 9/5/2018 22.63 -0.69 9.57 10.26 13.84NMT51GW30 10/11/2018 22.63 -0.69 8.79 9.48 13.09NMT51GW30 11/19/2018 22.63 -0.69 9.54 10.23 13.20NMT51GW30 12/6/2018 22.63 -0.69 9.43 10.12 12.030.3551GW31 2/14/2018 20.57 0.03 8.48 8.45 13.780.4351GW31 3/1/2018 20.57 0.03 6.71 6.68 10.601.3451GW31 4/2/2018 20.57 0.03 9.73 9.70 11.190.6451GW31 5/8/2018 20.57 0.03 9.26 9.23 13.16NMT51GW31 6/8/2018 20.57 0.03 7.41 7.38 11.080.9251GW31 7/12/2018 20.57 0.03 9.32 9.29 NMNM51GW31 8/2/2018 20.57 0.03 11.091.5551GW31 9/5/2018 20.57 0.03 9.2 9.17 12.220.6051GW31 10/11/2018 20.57 0.03 8.24 8.21 11.220.0151GW31 11/19/2018 20.57 0.03 9.35 9.32 11.350.8951GW31 12/6/2018 20.57 0.03 9.06 9.03 Notes: 1. NMT = No Measurable Thickness 2. NM = Not Measured 3. Data in BOLD ITALICS indicates measurable thicknesses of product detected 4. TBM = To Be Measured 5. Corrected GW Elevation based on Specific Gravity of JP-5 (0.82) Page 4BOLD ITALICS TABLE 4.1 SITE 137 HISTORICAL FIELD MEASUREMENT DATA Well ID Date Corrected GWT ElevationProduct ThicknessTOCStickupDTW/DTP DTW/DTP BGS 11.810.0151GW32 2/14/2018 20.66 0.01 8.85 8.84 11.34NMT51GW32 3/1/2018 20.66 0.01 9.32 9.31 10.650.2451GW32 4/2/2018 20.66 0.01 9.97 9.96 11.130.0851GW32 5/8/2018 20.66 0.01 9.52 9.51 11.040.0951GW32 6/8/2018 20.66 0.01 9.6 9.59 11.02NMT51GW32 7/12/2018 20.66 0.01 9.64 9.63 11.410.0351GW32 8/2/2018 20.66 0.01 9.24 9.23 11.040.0251GW32 9/5/2018 20.66 0.01 9.62 9.61 11.910.0351GW32 10/11/2018 20.66 0.01 8.74 8.73 11.28NMT51GW32 12/6/2018 20.66 0.01 9.38 9.37 13.20NMT51GW33 2/14/2018 22.8 0 9.6 9.60 12.71NMT51GW33 3/1/2018 22.8 0 10.09 10.09 12.21NMT51GW33 4/2/2018 22.8 0 10.59 10.59 12.83NMT51GW33 5/8/2018 22.8 0 9.97 9.97 12.61NMT51GW33 6/8/2018 22.8 0 10.19 10.19 12.73NMT51GW33 7/12/2018 22.8 0 10.07 10.07 12.87NMT51GW33 8/2/2018 22.8 0 9.93 9.93 12.63NMT51GW33 9/5/2018 22.8 0 10.17 10.17 13.49NMT51GW33 10/11/2018 22.8 0 9.31 9.31 12.69NMT51GW33 11/19/2018 22.8 0 10.11 10.11 12.79NMT51GW33 12/6/2018 22.8 0 10.01 10.01 13.52NMT51GW34 5/8/2018 23.4 0 9.88 9.88 13.60NMT51GW35 5/8/2018 22.89 -0.76 9.29 10.05 8.13NMT51GW36 5/8/2018 20.53 -0.33 12.4 12.73 13.63NMT51GW37 5/8/2018 20.06 -0.3 6.43 6.73 12.00NMT51GW38 5/8/2018 20.19 0 8.19 8.19 Notes: 1. NMT = No Measurable Thickness 2. NM = Not Measured 3. Data in BOLD ITALICS indicates measurable thicknesses of product detected 4. TBM = To Be Measured 5. Corrected GW Elevation based on Specific Gravity of JP-5 (0.82) Page 5BOLD ITALICS TABLE 4.1 SITE 137 HISTORICAL FIELD MEASUREMENT DATA Well ID Date Corrected GWT ElevationProduct ThicknessTOCStickupDTW/DTP DTW/DTP BGS 12.97NMT51GW39 2/14/2018 23.28 0 10.31 10.31 12.420.0151GW39 3/1/2018 23.28 0 10.86 10.86 12.130.0251GW39 4/2/2018 23.28 0 11.15 11.15 12.44NMT51GW39 5/8/2018 23.28 0 10.84 10.84 12.31NMT51GW39 6/8/2018 23.28 0 10.97 10.97 12.32NMT51GW39 7/12/2018 23.28 0 10.96 10.96 12.75NMT51GW39 8/2/2018 23.28 0 10.53 10.53 12.90NMT51GW39 9/5/2018 23.28 0 10.38 10.38 13.50NMT51GW39 10/11/2018 23.28 0 9.78 9.78 12.69NMT51GW39 11/19/2018 23.28 0 10.59 10.59 12.79NMT51GW39 12/6/2018 23.28 0 10.49 10.49 13.490.1751GW40 2/14/2018 23.26 0 9.74 9.74 12.960.0551GW40 3/1/2018 23.26 0 10.29 10.29 12.690.2451GW40 4/2/2018 23.26 0 10.53 10.53 13.090.1451GW40 5/8/2018 23.26 0 10.14 10.14 12.970.1551GW40 6/8/2018 23.26 0 10.26 10.26 12.890.1551GW40 7/12/2018 23.26 0 10.34 10.34 13.800.0351GW40 8/2/2018 23.26 0 9.45 9.45 12.680.0751GW40 9/5/2018 23.26 0 10.57 10.57 13.700.1651GW40 10/11/2018 23.26 0 9.53 9.53 13.280.0951GW40 11/19/2018 23.26 0 9.96 9.96 13.200.0651GW40 12/6/2018 23.26 0 10.05 10.05 Notes: 1. NMT = No Measurable Thickness 2. NM = Not Measured 3. Data in BOLD ITALICS indicates measurable thicknesses of product detected 4. TBM = To Be Measured 5. Corrected GW Elevation based on Specific Gravity of JP-5 (0.82) Page 6BOLD ITALICS TABLE 4.1 SITE 137 HISTORICAL FIELD MEASUREMENT DATA Well ID Date Corrected GWT ElevationProduct ThicknessTOCStickupDTW/DTP DTW/DTP BGS 13.05NMT51GW41 2/14/2018 22.67 0 9.62 9.62 12.65NMT51GW41 3/1/2018 22.67 0 10.02 10.02 12.20NMT51GW41 4/2/2018 22.67 0 10.47 10.47 12.61NMT51GW41 5/8/2018 22.67 0 10.06 10.06 12.43NMT51GW41 6/8/2018 22.67 0 10.24 10.24 12.44NMT51GW41 7/12/2018 22.67 0 10.23 10.23 12.58NMT51GW41 8/2/2018 22.67 0 10.09 10.09 12.39NMT51GW41 9/5/2018 22.67 0 10.28 10.28 13.36NMT51GW41 10/11/2018 22.67 0 9.31 9.31 12.42NMT51GW41 11/19/2018 22.67 0 10.25 10.25 12.63NMT51GW41 12/6/2018 22.67 0 10.04 10.04 13.120.0251GW42 2/14/2018 23 0 9.88 9.88 13.11NMT51GW42 3/1/2018 23 0 9.89 9.89 12.670.0251GW42 4/2/2018 23 0 10.33 10.33 13.060.0151GW42 5/8/2018 23 0 9.94 9.94 12.600.0251GW42 6/8/2018 23 0 10.4 10.40 12.63NMT51GW42 7/12/2018 23 0 10.37 10.37 12.72NMT51GW42 8/2/2018 23 0 10.28 10.28 12.63NMT51GW42 9/5/2018 23 0 10.37 10.37 13.78NMT51GW42 10/11/2018 23 0 9.22 9.22 12.69NMT51GW42 11/19/2018 23 0 10.31 10.31 13.13NMT51GW42 12/6/2018 23 0 9.87 9.87 12.04NMT51GWA 5/8/2018 19.51 -0.27 7.47 7.74 12.40NMT51GWB 5/8/2018 19.63 -0.32 7.23 7.55 13.56NMT51GWE 5/8/2018 20.85 -0.69 7.29 7.98 Notes: 1. NMT = No Measurable Thickness 2. NM = Not Measured 3. Data in BOLD ITALICS indicates measurable thicknesses of product detected 4. TBM = To Be Measured 5. Corrected GW Elevation based on Specific Gravity of JP-5 (0.82) Page 7BOLD ITALICS TABLE 4.1 SITE 137 HISTORICAL FIELD MEASUREMENT DATA Well ID Date Corrected GWT ElevationProduct ThicknessTOCStickupDTW/DTP DTW/DTP BGS 4.51NMT51PR35 2/14/2018 19.99 0 15.48 15.48 6.58NMT51PR35 3/1/2018 19.99 0 13.41 13.41 4.56NMT51PR35 4/2/2018 19.99 0 15.43 15.43 7.20NMT51PR35 5/8/2018 19.99 0 12.79 12.79 3.56NMT51PR35 6/8/2018 19.99 0 16.43 16.43 4.52NMT51PR35 7/12/2018 19.99 0 15.47 15.47 8.26NMT51PR35 9/5/2018 19.99 0 11.73 11.73 4.51NMT51PR35 10/11/2018 19.99 0 15.48 15.48 8.850.0951PR36 2/14/2018 22.35 0 13.48 13.48 8.53NMT51PR36 3/1/2018 22.35 0 13.82 13.82 8.45NMT51PR36 4/2/2018 22.35 0 13.9 13.90 8.48NMT51PR36 5/8/2018 22.35 0 13.87 13.87 8.37NMT51PR36 6/8/2018 22.35 0 13.98 13.98 8.47NMT51PR36 7/12/2018 22.35 0 13.88 13.88 9.13NMT51PR36 8/2/2018 22.35 0 13.22 13.22 8.81NMT51PR36 9/5/2018 22.35 0 13.54 13.54 9.420.0351PR36 10/11/2018 22.35 0 12.92 12.92 10.53NMT51PR36 11/19/2018 22.35 0 11.82 11.82 10.441.4451PR36 12/6/2018 22.35 0 11.65 11.65 12.56NMT51PR37 2/14/2018 22.81 0 10.25 10.25 12.85NMT51PR37 3/1/2018 22.81 0 9.96 9.96 11.62NMT51PR37 4/2/2018 22.81 0 11.19 11.19 11.01NMT51PR37 5/8/2018 22.81 0 11.8 11.80 11.88NMT51PR37 6/8/2018 22.81 0 10.93 10.93 11.77NMT51PR37 7/12/2018 22.81 0 11.04 11.04 12.45NMT51PR37 8/2/2018 22.81 0 10.36 10.36 14.33NMT51PR37 9/5/2018 22.81 0 8.48 8.48 11.72NMT51PR37 10/11/2018 22.81 0 11.09 11.09 12.37NMT51PR37 11/19/2018 22.81 0 10.44 10.44 13.56NMT51PR37 12/6/2018 22.81 0 9.25 9.25 Notes: 1. NMT = No Measurable Thickness 2. NM = Not Measured 3. Data in BOLD ITALICS indicates measurable thicknesses of product detected 4. TBM = To Be Measured 5. Corrected GW Elevation based on Specific Gravity of JP-5 (0.82) Page 8BOLD ITALICS TABLE 4.1 SITE 137 HISTORICAL FIELD MEASUREMENT DATA Well ID Date Corrected GWT ElevationProduct ThicknessTOCStickupDTW/DTP DTW/DTP BGS 10.42NMT51PR40 2/14/2018 20.74 0 10.32 10.32 12.26NMT51PR40 3/1/2018 20.74 0 8.48 8.48 9.85NMT51PR40 4/2/2018 20.74 0 10.89 10.89 12.13NMT51PR40 5/8/2018 20.74 0 8.61 8.61 10.05NMT51PR40 6/8/2018 20.74 0 10.69 10.69 8.48NMT51PR40 7/12/2018 20.74 0 12.26 12.26 9.43NMT51PR40 8/2/2018 20.74 0 11.31 11.31 9.99NMT51PR40 9/5/2018 20.74 0 10.75 10.75 9.62NMT51PR40 10/11/2018 20.74 0 11.12 11.12 9.53NMT51PR40 11/19/2018 20.74 0 11.21 11.21 6.68NMT51PR41 2/14/2018 20.13 0 13.45 13.45 -0.45NMT51PR41 3/1/2018 20.13 0 20.58 20.58 -0.40NMT51PR41 4/2/2018 20.13 0 20.53 20.53 -0.55NMT51PR41 5/8/2018 20.13 0 20.68 20.68 -1.17NMT51PR41 6/8/2018 20.13 0 21.3 21.30 11.58NMT51PR41 7/12/2018 20.13 0 8.55 8.55 12.10NMT51PR41 8/2/2018 20.13 0 8.03 8.03 12.18NMT51PR41 9/5/2018 20.13 0 7.95 7.95 12.38NMT51PR41 10/11/2018 20.13 0 7.75 7.75 11.66NMT51PR41 11/19/2018 20.13 0 8.47 8.47 11.52NMT51PR41 12/6/2018 20.13 0 8.61 8.61 9.69NMT51PR42 2/14/2018 20.45 0 10.76 10.76 11.33NMT51PR42 3/1/2018 20.45 0 9.12 9.12 10.27NMT51PR42 4/2/2018 20.45 0 10.18 10.18 10.55NMT51PR42 5/8/2018 20.45 0 9.9 9.90 10.82NMT51PR42 6/8/2018 20.45 0 9.63 9.63 11.06NMT51PR42 7/12/2018 20.45 0 9.39 9.39 11.48NMT51PR42 8/2/2018 20.45 0 8.97 8.97 11.75NMT51PR42 9/5/2018 20.45 0 8.7 8.70 11.74NMT51PR42 10/11/2018 20.45 0 8.71 8.71 12.22NMT51PR42 12/6/2018 20.45 0 8.23 8.23 Notes: 1. NMT = No Measurable Thickness 2. NM = Not Measured 3. Data in BOLD ITALICS indicates measurable thicknesses of product detected 4. TBM = To Be Measured 5. Corrected GW Elevation based on Specific Gravity of JP-5 (0.82) Page 9BOLD ITALICS TABLE 4.1 SITE 137 HISTORICAL FIELD MEASUREMENT DATA Well ID Date Corrected GWT ElevationProduct ThicknessTOCStickupDTW/DTP DTW/DTP BGS 11.170.3851PR43 3/1/2018 20.85 0 9.61 9.61 8.29NMT51PR43 4/2/2018 20.85 0 12.56 12.56 8.39NMT51PR43 5/8/2018 20.85 0 12.46 12.46 8.58NMT51PR43 6/8/2018 20.85 0 12.27 12.27 7.73NMT51PR43 7/12/2018 20.85 0 13.12 13.12 11.45NMT51PR43 8/2/2018 20.85 0 9.4 9.40 10.12NMT51PR43 9/5/2018 20.85 0 10.73 10.73 12.650.0451PR43 10/11/2018 20.85 0 8.19 8.19 8.38NMT51PR43 12/6/2018 20.85 0 12.47 12.47 6.91NMT51PR44 2/14/2018 20.49 0 13.58 13.58 4.67NMT51PR44 3/1/2018 20.49 0 15.82 15.82 2.78NMT51PR44 4/2/2018 20.49 0 17.71 17.71 2.45NMT51PR44 5/8/2018 20.49 0 18.04 18.04 1.12NMT51PR44 6/8/2018 20.49 0 19.37 19.37 1.03NMT51PR44 7/12/2018 20.49 0 19.46 19.46 0.37NMT51PR44 8/2/2018 20.49 0 20.12 20.12 0.42NMT51PR44 9/5/2018 20.49 0 20.07 20.07 -0.24NMT51PR44 10/11/2018 20.49 0 20.73 20.73 0.68NMT51PR44 11/19/2018 20.49 0 19.81 19.81 -0.80NMT51PR44 12/6/2018 20.49 0 21.29 21.29 12.21NMT51TW01 5/8/2018 22.27 2.59 10.06 7.47 10.71NMTD1R 3/1/2018 19.77 0 9.06 9.06 10.50NMTD1R 4/2/2018 19.77 0 9.27 9.27 10.09NMTD1R 5/8/2018 19.77 0 9.68 9.68 10.36NMTD1R 6/8/2018 19.77 0 9.41 9.41 11.03NMTD1R 10/11/2018 19.77 0 8.74 8.74 Notes: 1. NMT = No Measurable Thickness 2. NM = Not Measured 3. Data in BOLD ITALICS indicates measurable thicknesses of product detected 4. TBM = To Be Measured 5. Corrected GW Elevation based on Specific Gravity of JP-5 (0.82) Page 10BOLD ITALICS TABLE 4.1 SITE 137 HISTORICAL FIELD MEASUREMENT DATA Well ID Date Corrected GWT ElevationProduct ThicknessTOCStickupDTW/DTP DTW/DTP BGS 9.73NMTD2R 2/14/2018 20.21 0 10.48 10.48 9.83NMTD2R 3/1/2018 20.21 0 10.38 10.38 6.56NMTD2R 4/2/2018 20.21 0 13.65 13.65 6.59NMTD2R 5/8/2018 20.21 0 13.62 13.62 11.07NMTD2R 6/8/2018 20.21 0 9.14 9.14 11.650.03D2R 7/12/2018 20.21 0 8.55 8.55 12.01NMTD2R 9/5/2018 20.21 0 8.2 8.20 6.47NMTD2R 10/11/2018 20.21 0 13.74 13.74 10.89NMTD2R 12/6/2018 20.21 0 9.32 9.32 8.52NMTD3R 2/14/2018 20.97 0 12.45 12.45 7.29NMTD3R 3/1/2018 20.97 0 13.68 13.68 6.18NMTD3R 4/2/2018 20.97 0 14.79 14.79 6.87NMTD3R 5/8/2018 20.97 0 14.1 14.10 8.021.72D3R 6/8/2018 20.97 0 12.64 12.64 7.150.25D3R 7/12/2018 20.97 0 13.78 13.78 6.03NMTD3R 9/5/2018 20.97 0 14.94 14.94 6.05NMTD3R 10/11/2018 20.97 0 14.92 14.92 6.00NMTD3R 12/6/2018 20.97 0 14.97 14.97 Notes: 1. NMT = No Measurable Thickness 2. NM = Not Measured 3. Data in BOLD ITALICS indicates measurable thicknesses of product detected 4. TBM = To Be Measured 5. Corrected GW Elevation based on Specific Gravity of JP-5 (0.82) Page 11BOLD ITALICS 1,1-Dichloroethane 1,1-Dichloroethene 1,2,4-Trimethylbenzene 1,3,5-Trimethylbenzene Benzene Diisopropyl ether (DIPE)HISTORICAL GROUNDWATER LABORATORY ANALYTICAL RESULTS SITE 137TABLE 4.2SM 6200BDatecis-1,2-Dichloroethene Sample IDEthylbenzene Isopropylbenzene Naphthalene n-Propyl benzene n-Butylbenzene tert-Butylbenzene sec-Butylbenzene 6 350 400 400 1 70 70 600 70 6 70 70 70 702L GWQSGCL6000 350000 28500 25000 5000 70000 70000 84500 25000 6000 6900 30000 8500 15000Contaminant of ConcernTetrachloroethene Toluene Total Xylenes TrichloroetheneAll Other Analytes 0.77006002600005008550033000*GW Standard Revised/Estab. (See Table III)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.060.75BQLBQL0.840.38BQLBQLBQLBQLBQLBQLBQLBQL51GW14BQLBQLBQLBQLBQL11/6/20141.91BQLBQLBQL0.61BQLBQLBQLBQLBQLBQLBQLBQLBQL51GW14BQLBQLBQLBQLBQL8/25/20151.37BQLBQLBQLBQLBQLBQLBQLBQLBQLBQLBQLBQLBQL51GW14BQLBQLBQLBQLBQL8/24/20161.43BQLBQLBQLBQLBQLBQLBQLBQLBQLBQLBQLBQLBQL51GW14BQLBQLBQLBQLBQL5/4/2017BQLBQLBQLBQLBQLBQLBQLBQLBQLBQLBQLBQLBQLBQL51GW14BQLBQLBQLBQLBQL5/8/2018BQLBQLBQLBQLBQLBQLBQLBQLBQLBQLBQLBQLBQLBQL51GW14BQLBQLBQLBQLBQLNotes: 1. 2L GWQS = North Carolina Groundwater Quality Standard 15A NCAC 2L .0202 2. GCL = Gross Contamination Levels for groundwater as defined in "Guidelines for Assessment and Corrective Action for UST Releases" July 15, 2008 Version, Change 3 Effective December 1, 2013 3. All units are in ug/L (Micrograms per Liter) 4. BQL = Below Quantitation LimitsPage 15. NA = Not Analyzed6. A zero in the 2L GWQS column indicates the 2L Standard is equal to the laboratory detection limit7. A zero in the GCL column indicates a GCL has not been stablished8. Shaded concentrations indicate exceedance of the 2L GWQS 9. Well nomenclature in RED indicates the well has been abandoned 1,1-Dichloroethane 1,1-Dichloroethene 1,2,4-Trimethylbenzene 1,3,5-Trimethylbenzene Benzene Diisopropyl ether (DIPE)HISTORICAL GROUNDWATER LABORATORY ANALYTICAL RESULTS SITE 137TABLE 4.2SM 6200BDatecis-1,2-Dichloroethene Sample IDEthylbenzene Isopropylbenzene Naphthalene n-Propyl benzene n-Butylbenzene tert-Butylbenzene sec-Butylbenzene 6 350 400 400 1 70 70 600 70 6 70 70 70 702L GWQSGCL6000 350000 28500 25000 5000 70000 70000 84500 25000 6000 6900 30000 8500 15000Contaminant of ConcernTetrachloroethene Toluene Total Xylenes TrichloroetheneAll Other Analytes 0.77006002600005008550033000*GW Standard Revised/Estab. (See Table III)11/14/2013BQLBQL11.86.2BQL0.9BQL1.390.656.6BQL0.770.52BQL51GW24BQL0.317.980.37BQL11/6/2014BQLBQL26.310.2BQLBQLBQL5.052.1217.6BQL3.122.24BQL51GW24BQL0.5711.7BQLBQL8/25/2015BQLBQL17.28.22BQLBQLBQL4.171.714.6BQL2.432BQL51GW24BQLBQL8.94BQLBQL8/24/2016BQLBQL22.89.72BQLBQLBQL4.552.2613.31.193.422.8BQL51GW24BQLBQL11.1BQLBQL5/4/2017BQL2.942.77BQLBQL2.29BQL9.045.1578.6BQL9.085.67BQL51GW24BQLBQLBQL4.28BQL5/8/2018BQLBQL37.914.4BQLBQLBQL5.142.914.81.963.774.19BQL51GW24BQLBQL13BQLBQL11/6/2014BQLBQL0.730.33BQLBQLBQLBQLBQLBQLBQLBQLBQLBQL51GW25BQLBQLBQLBQLBQL8/25/2015BQLBQLBQLBQLBQLBQLBQLBQLBQLBQLBQLBQLBQLBQL51GW25BQLBQLBQLBQLBQL8/24/2016BQLBQLBQLBQLBQLBQLBQLBQLBQLBQLBQLBQLBQLBQL51GW25BQLBQLBQLBQLBQL5/4/2017BQLBQLBQLBQLBQLBQLBQLBQLBQLBQLBQLBQLBQLBQL51GW25BQLBQLBQLBQLBQL5/8/2018BQLBQLBQLBQLBQL3.5BQLBQLBQLBQLBQLBQLBQLBQL51GW25BQLBQLBQL2.98BQL11/6/2014BQLBQLBQLBQLBQLBQLBQLBQLBQLBQLBQLBQLBQLBQL51GW26BQLBQLBQLBQLBQL8/25/2015BQLBQLBQLBQLBQLBQLBQLBQLBQLBQLBQLBQLBQLBQL51GW26BQLBQLBQLBQLBQL8/24/2016BQLBQLBQLBQLBQL1.38BQLBQLBQLBQLBQLBQLBQLBQL51GW26BQLBQLBQLBQLBQL5/4/2017BQLBQLBQLBQLBQLBQLBQLBQLBQLBQLBQLBQLBQLBQL51GW26BQLBQLBQLBQLBQL5/8/2018BQLBQL1.6BQLBQLBQLBQLBQLBQL1.03BQLBQLBQLBQL51GW26BQLBQLBQLBQLBQLNotes: 1. 2L GWQS = North Carolina Groundwater Quality Standard 15A NCAC 2L .0202 2. GCL = Gross Contamination Levels for groundwater as defined in "Guidelines for Assessment and Corrective Action for UST Releases" July 15, 2008 Version, Change 3 Effective December 1, 2013 3. All units are in ug/L (Micrograms per Liter) 4. BQL = Below Quantitation LimitsPage 25. NA = Not Analyzed6. A zero in the 2L GWQS column indicates the 2L Standard is equal to the laboratory detection limit7. A zero in the GCL column indicates a GCL has not been stablished8. Shaded concentrations indicate exceedance of the 2L GWQS 9. Well nomenclature in RED indicates the well has been abandoned 1,1-Dichloroethane 1,1-Dichloroethene 1,2,4-Trimethylbenzene 1,3,5-Trimethylbenzene Benzene Diisopropyl ether (DIPE)HISTORICAL GROUNDWATER LABORATORY ANALYTICAL RESULTS SITE 137TABLE 4.2SM 6200BDatecis-1,2-Dichloroethene Sample IDEthylbenzene Isopropylbenzene Naphthalene n-Propyl benzene n-Butylbenzene tert-Butylbenzene sec-Butylbenzene 6 350 400 400 1 70 70 600 70 6 70 70 70 702L GWQSGCL6000 350000 28500 25000 5000 70000 70000 84500 25000 6000 6900 30000 8500 15000Contaminant of ConcernTetrachloroethene Toluene Total Xylenes TrichloroetheneAll Other Analytes 0.77006002600005008550033000*GW Standard Revised/Estab. (See Table III)11/6/2014BQLBQL9.12BQLBQLBQLBQL8.2810.218016.414.611.4BQL51GW301.14BQL2.061.42BQL8/24/2016BQL1.314.36BQLBQLBQLBQL9.86.7777.24.6611.36.67BQL51GW30BQLBQLBQL1.99BQL5/4/2017BQLBQL26.49.72BQLBQLBQL4.972.314.9BQL42.99BQL51GW30BQLBQL11.5BQLBQL5/8/20183.7219.82.25BQLBQL14.1BQL1.57BQL9.691.041.621.41BQL51GW30BQLBQLBQL24.6BQL8/24/20166.722.5941.81412.613.4BQL1610.316010.515.712.2BQL51GW33BQLBQL7.51.06BQL5/8/20185.113.3150.819.31.0816.4BQL10.58.2156.28.812.210.51.0751GW33BQLBQL10.31.65BQL11/14/2013BQLBQLBQLBQLBQLBQLBQLBQLBQLBQLBQLBQLBQLBQL51GW34BQLBQLBQLBQLBQL11/6/2014BQLBQLBQLBQLBQLBQLBQLBQLBQL1.52BQLBQLBQLBQL51GW34BQLBQLBQLBQLBQL8/25/2015BQLBQLBQLBQLBQLBQLBQLBQLBQL1.06BQLBQLBQLBQL51GW34BQLBQLBQLBQLBQL8/24/2016BQLBQLBQLBQLBQLBQLBQLBQLBQL1.97BQLBQLBQLBQL51GW34BQLBQLBQLBQLBQL5/4/2017BQLBQLBQLBQLBQLBQLBQLBQLBQL1.55BQLBQLBQLBQL51GW34BQLBQLBQLBQLBQL5/8/2018BQLBQL4.95BQLBQLBQLBQLBQLBQL6.24BQLBQLBQLBQL51GW34BQLBQL5.46BQLBQL11/14/201333.81.03BQLBQLBQL2.834.03BQLBQLBQLBQLBQLBQLBQL51GW35BQLBQLBQLBQLBQL11/6/201431.51.08BQLBQLBQL2.4BQLBQLBQLBQLBQLBQLBQLBQL51GW35BQLBQLBQLBQLBQL8/25/201523.21.04BQLBQLBQL1.9BQLBQLBQLBQLBQLBQLBQLBQL51GW35BQLBQLBQLBQLBQL8/24/2016191.13BQLBQLBQL1.88BQLBQLBQL1.75BQLBQLBQLBQL51GW35BQLBQLBQLBQLBQL5/4/201719.21.36BQLBQLBQL2.01BQLBQLBQLBQLBQLBQLBQLBQL51GW35BQLBQLBQLBQLBQL5/8/201812.71.36BQLBQLBQL1.45BQLBQLBQL1.81BQLBQLBQLBQL51GW35BQLBQLBQLBQLBQLNotes: 1. 2L GWQS = North Carolina Groundwater Quality Standard 15A NCAC 2L .0202 2. GCL = Gross Contamination Levels for groundwater as defined in "Guidelines for Assessment and Corrective Action for UST Releases" July 15, 2008 Version, Change 3 Effective December 1, 2013 3. All units are in ug/L (Micrograms per Liter) 4. BQL = Below Quantitation LimitsPage 35. NA = Not Analyzed6. A zero in the 2L GWQS column indicates the 2L Standard is equal to the laboratory detection limit7. A zero in the GCL column indicates a GCL has not been stablished8. Shaded concentrations indicate exceedance of the 2L GWQS 9. Well nomenclature in RED indicates the well has been abandoned 1,1-Dichloroethane 1,1-Dichloroethene 1,2,4-Trimethylbenzene 1,3,5-Trimethylbenzene Benzene Diisopropyl ether (DIPE)HISTORICAL GROUNDWATER LABORATORY ANALYTICAL RESULTS SITE 137TABLE 4.2SM 6200BDatecis-1,2-Dichloroethene Sample IDEthylbenzene Isopropylbenzene Naphthalene n-Propyl benzene n-Butylbenzene tert-Butylbenzene sec-Butylbenzene 6 350 400 400 1 70 70 600 70 6 70 70 70 702L GWQSGCL6000 350000 28500 25000 5000 70000 70000 84500 25000 6000 6900 30000 8500 15000Contaminant of ConcernTetrachloroethene Toluene Total Xylenes TrichloroetheneAll Other Analytes 0.77006002600005008550033000*GW Standard Revised/Estab. (See Table III)11/14/2013BQLBQLBQLBQLBQL0.97BQLBQLBQLBQLBQLBQLBQLBQL51GW36BQLBQLBQLBQLBQL11/14/2013BQLBQLBQLBQLBQL1.05BQLBQLBQLBQLBQLBQLBQLBQL51GW36DupBQLBQLBQLBQLBQL11/6/2014BQLBQLBQLBQLBQL1.04BQLBQLBQLBQLBQLBQLBQLBQL51GW36BQLBQLBQLBQLBQL11/6/2014BQLBQLBQLBQLBQL1.05BQLBQLBQLBQLBQLBQLBQLBQL51GW36DupBQLBQLBQLBQLBQL8/25/2015BQLBQLBQLBQLBQL1.13BQLBQLBQLBQLBQLBQLBQLBQL51GW36BQLBQLBQLBQLBQL8/25/2015BQLBQLBQLBQLBQL1.08BQLBQLBQLBQLBQLBQLBQLBQL51GW36DupBQLBQLBQLBQLBQL8/24/2016BQLBQLBQLBQLBQL1.35BQLBQLBQLBQLBQLBQLBQLBQL51GW36BQLBQLBQLBQLBQL8/24/2016BQLBQLBQLBQLBQL1.6BQLBQLBQL3.45BQLBQLBQLBQL51GW36DupBQLBQLBQLBQLBQL5/4/2017BQLBQLBQLBQLBQL1.05BQLBQLBQLBQLBQLBQLBQLBQL51GW36BQLBQLBQLBQLBQL5/4/2017BQLBQLBQLBQLBQLBQLBQLBQLBQLBQLBQLBQLBQLBQL51GW36DupBQLBQLBQLBQLBQL5/8/2018BQLBQLBQLBQLBQL1.14BQLBQLBQLBQLBQLBQLBQLBQL51GW36BQLBQLBQLBQLBQL5/8/2018BQLBQLBQLBQLBQL1.14BQLBQLBQLBQLBQLBQLBQLBQL51GW36DupBQLBQLBQLBQLBQL11/14/2013BQLBQL2.21.614.9BQLBQL15.44.4150BQL5.751.85BQL51GW38BQLBQL4.3BQLBQL11/6/2014BQLBQL0.47BQL3.232.18BQL3.140.7728.60.81.050.35BQL51GW38BQLBQLBQLBQLBQL8/25/2015BQLBQL2.15BQL4.171.45BQL7.052.8390.7BQL4.191.63BQL51GW38BQLBQLBQLBQLBQL8/24/2016BQLBQL9.315.976.231.1BQL10.79.742643.5815.15.41BQL51GW38BQLBQL7.32BQLBQL5/4/2017BQLBQL11.4BQL5.56BQLBQL5.2811.1266BQL177.36BQL51GW38BQLBQLBQLBQLBQL5/8/2018BQLBQL4.35BQL1.351.11BQL1.8810.22134.3214.67.061.0951GW38BQLBQLBQLBQLBQLNotes: 1. 2L GWQS = North Carolina Groundwater Quality Standard 15A NCAC 2L .0202 2. GCL = Gross Contamination Levels for groundwater as defined in "Guidelines for Assessment and Corrective Action for UST Releases" July 15, 2008 Version, Change 3 Effective December 1, 2013 3. All units are in ug/L (Micrograms per Liter) 4. BQL = Below Quantitation LimitsPage 45. NA = Not Analyzed6. A zero in the 2L GWQS column indicates the 2L Standard is equal to the laboratory detection limit7. A zero in the GCL column indicates a GCL has not been stablished8. Shaded concentrations indicate exceedance of the 2L GWQS 9. Well nomenclature in RED indicates the well has been abandoned 1,1-Dichloroethane 1,1-Dichloroethene 1,2,4-Trimethylbenzene 1,3,5-Trimethylbenzene Benzene Diisopropyl ether (DIPE)HISTORICAL GROUNDWATER LABORATORY ANALYTICAL RESULTS SITE 137TABLE 4.2SM 6200BDatecis-1,2-Dichloroethene Sample IDEthylbenzene Isopropylbenzene Naphthalene n-Propyl benzene n-Butylbenzene tert-Butylbenzene sec-Butylbenzene 6 350 400 400 1 70 70 600 70 6 70 70 70 702L GWQSGCL6000 350000 28500 25000 5000 70000 70000 84500 25000 6000 6900 30000 8500 15000Contaminant of ConcernTetrachloroethene Toluene Total Xylenes TrichloroetheneAll Other Analytes 0.77006002600005008550033000*GW Standard Revised/Estab. (See Table III)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.22BQLBQLBQLBQL51TW01BQLBQLBQLBQLBQL8/25/2015BQLBQLBQLBQLBQLBQLBQLBQLBQL1.2BQLBQLBQLBQL51TW01BQLBQLBQLBQLBQL8/24/2016BQLBQLBQLBQLBQLBQLBQLBQLBQL3.28BQLBQLBQLBQL51TW01BQLBQLBQLBQLBQL5/4/2017BQLBQLBQLBQLBQLBQLBQLBQLBQL3.59BQLBQLBQLBQL51TW01BQLBQLBQLBQLBQL5/8/2018BQLBQLBQLBQLBQLBQLBQLBQLBQL1.06BQLBQLBQLBQL51TW01BQLBQLBQLBQLBQLNotes: 1. 2L GWQS = North Carolina Groundwater Quality Standard 15A NCAC 2L .0202 2. GCL = Gross Contamination Levels for groundwater as defined in "Guidelines for Assessment and Corrective Action for UST Releases" July 15, 2008 Version, Change 3 Effective December 1, 2013 3. All units are in ug/L (Micrograms per Liter) 4. BQL = Below Quantitation LimitsPage 55. NA = Not Analyzed6. A zero in the 2L GWQS column indicates the 2L Standard is equal to the laboratory detection limit7. A zero in the GCL column indicates a GCL has not been stablished8. Shaded concentrations indicate exceedance of the 2L GWQS 9. Well nomenclature in RED indicates the well has been abandoned GW Standard Revised/Estab. (See Table III)2-MethylnaphthaleneAcenaphtheneFluoreneNaphthaleneAll Other AnalytesHISTORICAL GROUNDWATER LABORATORY ANALYTICAL RESULTS SITE 137 TABLE 4.3 EPA METHOD 610 BY EPA METHOD 625 DateSample ID 30 80 300 62L GWQS GCL 12500 2120 990 6000 Contaminant of Concern 11/14/2013 BQL BQL BQL BQL BQL51GW05 11/6/2014 BQL BQL BQL BQL BQL51GW05 8/25/2015 BQL BQL BQL BQL BQL51GW05 8/24/2016 BQL BQL BQL BQL BQL51GW05 5/4/2017 BQL BQL BQL BQL BQL51GW05 5/8/2018 BQL BQL BQL BQL BQL51GW05 11/14/2013 BQL BQL BQL BQL BQL51GW06 11/6/2014 BQL BQL BQL BQL BQL51GW06 8/25/2015 BQL BQL BQL BQL BQL51GW06 8/24/2016 BQL BQL BQL BQL BQL51GW06 5/4/2017 BQL BQL BQL BQL BQL51GW06 5/8/2018 BQL BQL BQL BQL BQL51GW06 11/14/2013 BQL BQL BQL BQL BQL51GW14 11/6/2014 BQL BQL BQL BQL BQL51GW14 8/25/2015 BQL BQL BQL BQL BQL51GW14 8/24/2016 BQL BQL BQL BQL BQL51GW14 5/4/2017 BQL BQL BQL BQL BQL51GW14 5/8/2018 BQL BQL BQL BQL BQL51GW14 11/14/2013 0.64 BQL BQL 1.48 BQL51GW24 11/6/2014 2.79 BQL BQL 6.64 BQL51GW24 8/25/2015 2.28 BQL BQL 6.72 BQL51GW24 8/24/2016 2.7 BQL BQL 7.25 BQL51GW24 5/4/2017 2.91 BQL BQL 8.01 BQL51GW24 5/8/2018 3.99 BQL BQL 7.31 BQL51GW24 Notes: 1. 2L GWQS = North Carolina Groundwater Quality Standard 15A NCAC 2L .0202 2. GCL = Gross Contamination Levels for groundwater as defined in "Guidelines for Assessment and Corrective Action for UST Releases" July 15, 2008 Version, Change 3 Effective December 1, 2013 3. All units are in ug/L (Micrograms per Liter) 4. BQL = Below Quantitation Limits 5. NA = Not Analyzed 6. A zero in the 2L GWQS column indicates the 2L Standard is equal to the laboratory detection limit 7. A zero in the GCL column indicates a GCL has not been established 8. Shaded concentrations indicate exceedance of the 2L GWQS Page 1 9. Well nomenclature in RED indicates the well has been abandoned GW Standard Revised/Estab. (See Table III)2-MethylnaphthaleneAcenaphtheneFluoreneNaphthaleneAll Other AnalytesHISTORICAL GROUNDWATER LABORATORY ANALYTICAL RESULTS SITE 137 TABLE 4.3 EPA METHOD 610 BY EPA METHOD 625 DateSample ID 30 80 300 62L GWQS GCL 12500 2120 990 6000 Contaminant of Concern 11/6/2014 BQL BQL BQL 0.321 BQL51GW25 8/25/2015 BQL BQL BQL BQL BQL51GW25 8/24/2016 BQL BQL BQL BQL BQL51GW25 5/4/2017 BQL BQL BQL BQL BQL51GW25 5/8/2018 BQL BQL BQL BQL BQL51GW25 11/6/2014 BQL BQL BQL BQL BQL51GW26 8/25/2015 BQL BQL BQL BQL BQL51GW26 8/24/2016 BQL BQL BQL BQL BQL51GW26 5/4/2017 BQL BQL BQL BQL BQL51GW26 5/8/2018 BQL BQL BQL BQL BQL51GW26 11/6/2014 25 BQL 0.406 70.2 BQL51GW30 8/24/2016 11.2 BQL BQL 43.3 BQL51GW30 5/4/2017 16.4 BQL BQL 52.1 BQL51GW30 5/8/2018 3.18 BQL BQL 5.93 BQL51GW30 8/24/2016 41.2 BQL BQL 75.1 BQL51GW33 5/8/2018 28.1 BQL BQL 36.2 BQL51GW33 11/14/2013 BQL BQL BQL 0.33 BQL51GW34 11/6/2014 BQL BQL BQL 0.308 BQL51GW34 8/25/2015 BQL BQL BQL BQL BQL51GW34 8/24/2016 BQL BQL BQL 1.04 BQL51GW34 5/4/2017 BQL BQL BQL 1.08 BQL51GW34 5/8/2018 BQL BQL BQL 3 BQL51GW34 Notes: 1. 2L GWQS = North Carolina Groundwater Quality Standard 15A NCAC 2L .0202 2. GCL = Gross Contamination Levels for groundwater as defined in "Guidelines for Assessment and Corrective Action for UST Releases" July 15, 2008 Version, Change 3 Effective December 1, 2013 3. All units are in ug/L (Micrograms per Liter) 4. BQL = Below Quantitation Limits 5. NA = Not Analyzed 6. A zero in the 2L GWQS column indicates the 2L Standard is equal to the laboratory detection limit 7. A zero in the GCL column indicates a GCL has not been established 8. Shaded concentrations indicate exceedance of the 2L GWQS Page 2 9. Well nomenclature in RED indicates the well has been abandoned GW Standard Revised/Estab. (See Table III)2-MethylnaphthaleneAcenaphtheneFluoreneNaphthaleneAll Other AnalytesHISTORICAL GROUNDWATER LABORATORY ANALYTICAL RESULTS SITE 137 TABLE 4.3 EPA METHOD 610 BY EPA METHOD 625 DateSample ID 30 80 300 62L GWQS GCL 12500 2120 990 6000 Contaminant of Concern 11/14/2013 BQL BQL BQL BQL BQL51GW35 11/6/2014 BQL BQL BQL BQL BQL51GW35 8/25/2015 BQL BQL BQL BQL BQL51GW35 8/24/2016 BQL BQL BQL BQL BQL51GW35 5/4/2017 BQL BQL BQL BQL BQL51GW35 5/8/2018 BQL BQL BQL BQL BQL51GW35 11/14/2013 BQL BQL BQL BQL BQL51GW36 11/14/2013 BQL BQL BQL BQL BQL51GW36Dup 11/6/2014 BQL BQL BQL BQL BQL51GW36 11/6/2014 BQL BQL BQL BQL BQL51GW36Dup 8/25/2015 BQL BQL BQL BQL BQL51GW36 8/25/2015 BQL BQL BQL BQL BQL51GW36Dup 8/24/2016 BQL BQL BQL BQL BQL51GW36 8/24/2016 BQL BQL BQL BQL BQL51GW36Dup 5/4/2017 BQL BQL BQL BQL BQL51GW36 5/4/2017 BQL BQL BQL BQL BQL51GW36Dup 5/8/2018 BQL BQL BQL BQL BQL51GW36 5/8/2018 BQL BQL BQL BQL BQL51GW36Dup 11/14/2013 4.94 BQL BQL 21.6 BQL51GW38 11/6/2014 2.02 BQL BQL 10.9 BQL51GW38 8/25/2015 14.3 BQL BQL 48.7 BQL51GW38 8/24/2016 72.3 BQL BQL 146 BQL51GW38 5/4/2017 83.6 BQL BQL 203 BQL51GW38 5/8/2018 44.1 BQL BQL 98.7 BQL51GW38 Notes: 1. 2L GWQS = North Carolina Groundwater Quality Standard 15A NCAC 2L .0202 2. GCL = Gross Contamination Levels for groundwater as defined in "Guidelines for Assessment and Corrective Action for UST Releases" July 15, 2008 Version, Change 3 Effective December 1, 2013 3. All units are in ug/L (Micrograms per Liter) 4. BQL = Below Quantitation Limits 5. NA = Not Analyzed 6. A zero in the 2L GWQS column indicates the 2L Standard is equal to the laboratory detection limit 7. A zero in the GCL column indicates a GCL has not been established 8. Shaded concentrations indicate exceedance of the 2L GWQS Page 3 9. Well nomenclature in RED indicates the well has been abandoned GW Standard Revised/Estab. (See Table III)2-MethylnaphthaleneAcenaphtheneFluoreneNaphthaleneAll Other AnalytesHISTORICAL GROUNDWATER LABORATORY ANALYTICAL RESULTS SITE 137 TABLE 4.3 EPA METHOD 610 BY EPA METHOD 625 DateSample ID 30 80 300 62L GWQS GCL 12500 2120 990 6000 Contaminant of Concern 11/14/2013 BQL BQL BQL BQL BQL51GWE 11/6/2014 BQL BQL BQL BQL BQL51GWE 8/25/2015 BQL BQL BQL BQL BQL51GWE 8/24/2016 BQL BQL BQL BQL BQL51GWE 5/4/2017 BQL BQL BQL BQL BQL51GWE 5/8/2018 BQL BQL BQL BQL BQL51GWE 11/14/2013 BQL 0.333 BQL 0.333 BQL51TW01 11/6/2014 BQL 0.495 BQL 0.758 BQL51TW01 8/25/2015 BQL BQL BQL 0.991 BQL51TW01 8/24/2016 BQL BQL BQL 1.87 BQL51TW01 5/4/2017 BQL BQL BQL 1.94 BQL51TW01 5/8/2018 BQL BQL BQL BQL BQL51TW01 Notes: 1. 2L GWQS = North Carolina Groundwater Quality Standard 15A NCAC 2L .0202 2. GCL = Gross Contamination Levels for groundwater as defined in "Guidelines for Assessment and Corrective Action for UST Releases" July 15, 2008 Version, Change 3 Effective December 1, 2013 3. All units are in ug/L (Micrograms per Liter) 4. BQL = Below Quantitation Limits 5. NA = Not Analyzed 6. A zero in the 2L GWQS column indicates the 2L Standard is equal to the laboratory detection limit 7. A zero in the GCL column indicates a GCL has not been established 8. Shaded concentrations indicate exceedance of the 2L GWQS Page 4 9. Well nomenclature in RED indicates the well has been abandoned TABLE 4.4SITE 137EFFLUENT AIR LABORATORY ANALYTICAL RESULTSSite_ID Sample_ID Lab_ID Matrix Date_Samp Samp_Time LAB Method CAS Parameter Result DET_Limit Units Data_Qualifier CONC_FACTORSite 137 137 Effluent Air18-11-0991Air11/12/18 10:15 AMCalscience EPA TO‐17 (M)96-12-8 1,2-Dibromo-3-Chloropropane ND 50 ug/m3 1.00Site 137 137 Effluent Air18-11-0991Air11/12/18 10:15 AMCalscience EPA TO‐17 (M)135-98-8 sec-Butylbenzene ND 20 ug/m3 1.00Site 137 137 Effluent Air18-11-0991Air11/12/18 10:15 AMCalscience EPA TO‐17 (M)630-20-6 1,1,1,2-Tetrachloroethane ND 20 ug/m3 1.00Site 137 137 Effluent Air18-11-0991Air11/12/18 10:15 AMCalscience EPA TO‐17 (M)71-55-6 1,1,1-Trichloroethane ND 20 ug/m3 1.00Site 137 137 Effluent Air18-11-0991Air11/12/18 10:15 AMCalscience EPA TO‐17 (M)79-34-5 1,1,2,2-Tetrachloroethane ND 20 ug/m3 1.00Site 137 137 Effluent Air18-11-0991Air11/12/18 10:15 AMCalscience EPA TO‐17 (M)79-00-5 1,1,2-Trichloroethane ND 20 ug/m3 1.00Site 137 137 Effluent Air18-11-0991Air11/12/18 10:15 AMCalscience EPA TO‐17 (M)75-34-3 1,1-Dichloroethane ND 20 ug/m3 1.00Site 137 137 Effluent Air18-11-0991Air11/12/18 10:15 AMCalscience EPA TO‐17 (M)96-18-4 1,2,3-Trichloropropane ND 20 ug/m3 1.00Site 137 137 Effluent Air18-11-0991Air11/12/18 10:15 AMCalscience EPA TO‐17 (M)120-82-1 1,2,4-Trichlorobenzene ND 20 ug/m3 1.00Site 137 137 Effluent Air18-11-0991Air11/12/18 10:15 AMCalscience EPA TO‐17 (M)106-93-4 1,2-Dibromoethane ND 20 ug/m3 1.00Site 137 137 Effluent Air18-11-0991Air11/12/18 10:15 AMCalscience EPA TO‐17 (M)95-50-1 1,2-Dichlorobenzene ND 20 ug/m3 1.00Site 137 137 Effluent Air18-11-0991Air11/12/18 10:15 AMCalscience EPA TO‐17 (M)107-06-2 1,2-Dichloroethane ND 20 ug/m3 1.00Site 137 137 Effluent Air18-11-0991Air11/12/18 10:15 AMCalscience EPA TO‐17 (M)78-87-5 1,2-Dichloropropane ND 20 ug/m3 1.00Site 137 137 Effluent Air18-11-0991Air11/12/18 10:15 AMCalscience EPA TO‐17 (M)541-73-1 1,3-Dichlorobenzene ND 20 ug/m3 1.00Site 137 137 Effluent Air18-11-0991Air11/12/18 10:15 AMCalscience EPA TO‐17 (M)106-46-7 1,4-Dichlorobenzene ND 20 ug/m3 1.00Site 137 137 Effluent Air18-11-0991Air11/12/18 10:15 AMCalscience EPA TO‐17 (M)78-93-3 2-Butanone ND 50 ug/m3 1.00Site 137 137 Effluent Air18-11-0991Air11/12/18 10:15 AMCalscience EPA TO‐17 (M)591-78-6 2-Hexanone ND 20 ug/m3 1.00Site 137 137 Effluent Air18-11-0991Air11/12/18 10:15 AMCalscience EPA TO‐17 (M)108-10-1 4-Methyl-2-Pentanone ND 20 ug/m3 1.00Site 137 137 Effluent Air18-11-0991Air11/12/18 10:15 AMCalscience EPA TO‐17 (M)71-43-2 Benzene 57 50 ug/m3 1.00Site 137 137 Effluent Air18-11-0991Air11/12/18 10:15 AMCalscience EPA TO‐17 (M)75-27-4 Bromodichloromethane ND 20 ug/m3 1.00Site 137 137 Effluent Air18-11-0991Air11/12/18 10:15 AMCalscience EPA TO‐17 (M)75-25-2 Bromoform ND 50 ug/m3 1.00Site 137 137 Effluent Air18-11-0991Air11/12/18 10:15 AMCalscience EPA TO‐17 (M)56-23-5 Carbon Tetrachloride ND 20 ug/m3 1.00Site 137 137 Effluent Air18-11-0991Air11/12/18 10:15 AMCalscience EPA TO‐17 (M)108-90-7 Chlorobenzene ND 20 ug/m3 1.00Site 137 137 Effluent Air18-11-0991Air11/12/18 10:15 AMCalscience EPA TO‐17 (M)67-66-3 Chloroform ND 20 ug/m3 1.00Site 137 137 Effluent Air18-11-0991Air11/12/18 10:15 AMCalscience EPA TO‐17 (M)124-48-1 Dibromochloromethane ND 20 ug/m3 1.00Site 137 137 Effluent Air18-11-0991Air11/12/18 10:15 AMCalscience EPA TO‐17 (M)74-95-3 Dibromomethane ND 20 ug/m3 1.00Site 137 137 Effluent Air18-11-0991Air11/12/18 10:15 AMCalscience EPA TO‐17 (M)100-41-4 Ethylbenzene ND 20 ug/m3 1.00Site 137 137 Effluent Air18-11-0991Air11/12/18 10:15 AMCalscience EPA TO‐17 (M)87-68-3 Hexachloro-1,3-Butadiene ND 20 ug/m3 1.00Site 137 137 Effluent Air18-11-0991Air11/12/18 10:15 AMCalscience EPA TO‐17 (M)91-20-3 Naphthalene ND 20 ug/m3 1.00Site 137 137 Effluent Air18-11-0991Air11/12/18 10:15 AMCalscience EPA TO‐17 (M)100-42-5 Styrene ND 20 ug/m3 1.00Site 137 137 Effluent Air18-11-0991Air11/12/18 10:15 AMCalscience EPA TO‐17 (M)127-18-4 Tetrachloroethene ND 20 ug/m3 1.00Site 137 137 Effluent Air18-11-0991Air11/12/18 10:15 AMCalscience EPA TO‐17 (M)108-88-3 Toluene 20 20 ug/m3 1.00Site 137 137 Effluent Air18-11-0991Air11/12/18 10:15 AMCalscience EPA TO‐17 (M)79-01-6 Trichloroethene ND 20 ug/m3 1.00Site 137 137 Effluent Air18-11-0991Air11/12/18 10:15 AMCalscience EPA TO‐17 (M)156-59-2 c-1,2-Dichloroethene ND 20 ug/m3 1.00Site 137 137 Effluent Air18-11-0991Air11/12/18 10:15 AMCalscience EPA TO‐17 (M)10061-01-5 c-1,3-Dichloropropene ND 20 ug/m3 1.00Site 137 137 Effluent Air18-11-0991Air11/12/18 10:15 AMCalscience EPA TO‐17 (M)95-47-6 o-Xylene ND 20 ug/m3 1.00Site 137 137 Effluent Air18-11-0991Air11/12/18 10:15 AMCalscience EPA TO‐17 (M)179601-23-1 p/m-Xylene ND 50 ug/m3 1.00Site 137 137 Effluent Air18-11-0991Air11/12/18 10:15 AMCalscience EPA TO‐17 (M)156-60-5 t-1,2-Dichloroethene ND 50 ug/m3 1.00Site 137 137 Effluent Air18-11-0991Air11/12/18 10:15 AMCalscience EPA TO‐17 (M)10061-02-6 t-1,3-Dichloropropene ND 20 ug/m3 1.00Site 137 137 Effluent Air18-11-0991Air11/12/18 10:15 AMCalscience EPA TO‐17 (M)99-87-6 p-Isopropyltoluene ND 20 ug/m3 1.00ND = Non DetectPage  1 CODOil and GreaseDissolved OxygenpHTSSTTOTurbidityWaste Water Treatment Standards Sample ID Date Units mg/L mg/L mg/L mg/L ug/L NTU 50 67 1 450 2130 1006-9 HISTORICAL EFFLUENT LABORATORY ANALYTICAL RESULTS SITE 137 TABLE 4.5 Low Level Mercuryng/L 47 15.742.18493.96.038.821.22011/12/2013137 Effluent Discharge 0 11.818.1319.176.759.221.4152.511/10/2014137 Effluent Discharge 0 1112.432.86.184.6027.211/11/2015137 Effluent Discharge 0 5.54006.66.120011/7/2016137 Effluent Discharge NA NANANANANANANA11/9/2016137 Effluent Discharge 0 33.514.6806.647.74029.511/7/2017137 Effluent Discharge 0 9.4125.3406.36NA029.911/8/2018137 Effluent Discharge 0 NANANANA8.91NANA11/14/2018137 Effluent Discharge NA Notes: 1. COD = Chemical Oxygen Demand 2. TSS = Total Suspended Solids 3. TTO = Total Toxic Organics 4. TTO value is the calculated sum of EPA Methods 608, 624 and 625 constituent concentrations 5. mg/L = milligrams per liter 6. ug/L = micrograms per liter 7. ng/L = nanograms per liter 8. NTU = Nephelometric Turbidity Units 9. NA = Not Analyzed 10. Shaded concentrations indicate exceedance of Waste Water Treatment Standards 11. A zero (0) in the results column indicates concentration is either below detection limit or below quantitation limit 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ^_ ^_ ^_ à > >> > > > >> > > > > > > > > > > > > > > > > > R > > > > > > =>> J J J J J J J J = J J J 83 137 84 51GW3051GW27 51GW16 51PR36 51PR37 D3R D2R D1R 51PR35 3499 1899 84A 4035 A STREETCURTIS ROAD2N D A V E N U E 51PR44 51PR4351PR42 51PR4151PR40 51GW09 51GW20 51GW39 51GW41 51GW42 51GW40 51GWE 51GW17 51GW25 51GW24 51GW26 51GWA 51GWB 51GW18 51GW14 51GW36 51GW3851TW01 51GW35 51GW07 51GW06 51GW05 51GW08 51GW37 51GW10 51GW34 51GW33 51GW32 51GW31 51GW29 51GW28 51GW13 51GW12 Scale:AS SHOWN SITE 137FREE PRODUCT PLUME MAPAS OF DECEMBER 2018 MCAS CHERRY POINTPERIODIC MONITORINGREPORT NOTES Job No.:218001 Date Drawn:JAN 2019 Drawn By:THW Checked By:SAC FIGURE 4.1 ³ LEGEND No Measurable Thickness Product Detected Free Product Plume Free ProductWell by Type ! !àGroundwater Flow Direction as of May 2018 SCALE Known Point of Release^_ J RW A Surface Water =T-I >T-II R T-III S Unknown Well! This document is "FOR OFFICIAL USE ONLY" and it contains info that may be exempt from public release under theFOI Act (5 U.S.C. 552). It is to be handled IAW DoD policy and is not to be released to the public or personnel who do not have a valid "need-to-know" without prior approval of an authorized DoD official. WARNING: 100 0 10050Feet Well Number Well Type Date Product Thickness51GW12 T-II 12/6/2018 0.1351GW16 T-II 12/6/2018 0.2151GW28 T-II 12/6/2018 0.0551GW29 T-II 12/6/2018 0.8451GW31 T-II 12/6/2018 0.8951GW40 T-II 12/6/2018 0.0651PR36 RW 12/6/2018 1.44