WS-3810_37831_CA_CSA_20150917

TABLE 1

Underground Storage Tank Information

The following table shows the USTs at the Farm in November 1991.

Tank # Product Gallons Release
Detected
Removal
Date
Co-
Mingled
UST Permits
Branch Tank #
T 1 Leaded
Gasoline
1000 1/7/1992 * 10-08-1993 Yes
Not Listed
T 2 Diesel 560 1/7/1992 * 08-11-1992 Yes
Not Listed
T 3 Regular
Gasoline
560 1/7/1992 * 08-11-1992 Yes
Not Listed
T 4 Unleaded
Gasoline
1000 1/7/1992 * 08-2011 Yes
DENR ID # 2
T 5 Diesel 1000 1/7/1992 *

02-10-2005 Yes
DENR ID # 1

The tank T-4 was removed in 2011.

Table 2Receptor Survey Table - Surrounding Properties and Supply Wells within 1,500 feetLittle Huff Inc. - Hyco Marina - DENR Incident #39559Property # (Figure 4)Parcel NumberOwner Mail Address Mail CityMail StateMail ZipProperty AddressSupply Well ID & Distance From Source1 1061 FOREMAN BRETT H & KIMBERLY M 3430 CHURCHILL DR RALEIGH NC 27607 COTTAGE LN> 1500 ft. from source area2 1063 FOREMAN BRETT H & KIMBERLY M 3430 CHURCHILL DR RALEIGH NC 27607 COTTAGE LN> 1500 ft. from source3 1066 FOREMAN BRETT H & KIMBERLY M 3430 CHURCHILL DR RALEIGH NC 27607 COTTAGE LN> 1500 ft. from source 4 1564 MATTHEWS R GENTRY TRUSTEE50 DRIFTWOOD CT GIBSONVILLE NC 27249 COTTAGE LNSW-9 ~1500 ft. from source 5 1581 WAGSTAFF KAY G & LINDSAY T JR 31 REAMS AVE ROXBORO NC 27573 BRADMOORE RDSW-4 ~850 ft. from source6 1582 OWEN CHRYSTAL J604 TRAIL THREE BURLINGTON NC 27215 BRADMOORE RDSW-3 ~750 ft. from source7 1584 OWEN CHRYSTAL J604 TRAIL THREE BURLINGTON NC 27215 MORTON CIRUndeveloped8 1796 DEESE CHARLES D4817 NC HWY 54 GRAHAM NC 27253 9500 SEMORA RD SW-1 - on adjacent property & ~250 ft. from source 9 1858 WARD ERIC THOMAS9712 CORKTREE CT WAKE FOREST NC 27587 113 COTTAGE LN SW-6 ~1350 ft. from source area10 1873 EVANS MICHAEL W & AMELIA S3915 GRACE MEADOW CTMEBANE NC 27302 9121 SEMORA RD > 1500 ft. from source area11 2123 BOWES D CARL & A THOMAS66 OLD HICKORY DR ROXBORO NC 27573 SEMORA RDUndeveloped12 2320 BENEKE CANDYCE THOMPSON2704 TANGLEY ST HOUSTON TX 77005 COTTAGE LNSW-8 ~1500 ft. from source13 2442 CARVER BETTY & FOWLER LARRY LE 112 COTTAGE LN LEASBURG NC 27291 112 COTTAGE LN SW-7 ~1425 ft. from source 14 2477 WOOTEN ANDREW & MARY JAN F 57 LANDMARK N ROXBORO NC 27574 KELLY BREWER RDUndeveloped15 15452 SLAUGHTER TERA B114 COTTAGE LN LEASBURG NC 27291 KELLY BREWER RDUndeveloped16 15453 SLAUGHTER TERA B114 COTTAGE LN LEASBURG NC 27291 COTTAGE LNUndeveloped17 15454 SLAUGHTER TERA B114 COTTAGE LN LEASBURG NC 27291 114 COTTAGE LN SW-5 ~1330 ft. from source 18 15455 WAGSTAFF LINDSEY T JR & KAY G 31 REAMS AVE ROXBORO NC 27573 COTTAGE LNUndeveloped19 15456 WAGSTAFF LINDSEY T JR & KAY G 31 REAMS AVE ROXBORO NC 27573 COTTAGE LNUndeveloped20 15457 WAGSTAFF LINDSEY T JR & KAY G 31 REAMS AVE ROXBORO NC 27573 COTTAGE LNUndeveloped21 15458 WAGSTAFF LINDSEY T JR & KAY G 31 REAMS AVE ROXBORO NC 27573 COTTAGE LNUndeveloped22 15459 HUBLER TIMOTHY A73 MORTON CIR LEASBURG NC 27291 73 MORTON CIR SW-2 ~615 ft. from source 23 15462 DANSCO LLC1101 OLD DURHAM RD ROXBORO NC 27573KELLY BREWER/SEMORA RDUndevelopedPage 1 of 2
Table 2Receptor Survey Table - Surrounding Properties and Supply Wells within 1,500 feetLittle Huff Inc. - Hyco Marina - DENR Incident #39559Property # (Figure 4)Parcel NumberOwner Mail Address Mail CityMail StateMail ZipProperty AddressSupply Well ID & Distance From Source24 15463 DANSCO LLC1101 OLD DURHAM RD ROXBORO NC 27573 KELLY BREWER RDUndeveloped25 15464 DANSCO LLC1101 OLD DURHAM RD ROXBORO NC 27573 MORTON CIRUndeveloped26 15465 WAGSTAFF LINDSEY T JR & KAY G 31 REAMS AVE ROXBORO NC 27573 KELLY BREWER RDUndeveloped27 15466 WAGSTAFF LINDSEY T JR & KAY G 31 REAMS AVE ROXBORO NC 27573 KELLY BREWER RDUndeveloped28 15467 WAGSTAFF LINDSEY T JR & KAY G 31 REAMS AVE ROXBORO NC 27573 KELLY BREWER RDUndeveloped29 15468 WAGSTAFF LINDSEY T JR & KAY G 31 REAMS AVE ROXBORO NC 27573 KELLY BREWER RDUndeveloped30 15469 WAGSTAFF LINDSEY T JR & KAY G 31 REAMS AVE ROXBORO NC 27573 KELLY BREWER RDUndeveloped31 15470 WAGSTAFF LINDSEY T JR & KAY G 31 REAMS AVE ROXBORO NC 27573 KELLY BREWER RDUndeveloped32 15471 SLAUGHTER TERA B114 COTTAGE LN LEASBURG NC 27291 KELLY BREWER RDUndeveloped33 15472 SLAUGHTER TERA B114 COTTAGE LN LEASBURG NC 27291 COTTAGE LNUndeveloped34 15473 SLAUGHTER TERA B114 COTTAGE LN LEASBURG NC 27291 COTTAGE LNUndeveloped35 16656 PERSON CASWELL RECREATION PARK 205 POINTER DR LEASBURG NC 27291 KELLY BREWER RDSW-10 ~1330 ft. from source38 18837 WHITE DARRELL E & LISA829 HIDDEN JEWEL LN WAKE FOREST NC 27587 67 BRIDGE POINT LN > 1500 ft. from source area39 18838 STALEY CARL R & JOAN C TRUSTEE 41 BRIDGE POINT LN SEMORA NC 27343 BRIDGE POINT LN > 1500 ft. from source areaPage 2 of 2
Analytical AnalyticalSample Sample Sample Sample Sample Sample Sample Sample Sample Sample Sample Sample Sample Parameter Method UNITS SW-1 SW-2 SW-3 SW-3A SW-4 Base-1 Base-2 MW-1 MW-1 MW-1 MW-12 MW-13 MW-14Soil to Lab Identifier(mg/kg)SW-1 SW-2 SW-3 SW-3A SW-4 Base-1 Base-2 SS-21 SS-31 SS-41 MW-12 MW-13 MW-14 Groundwater ResidentialSample Date:7/7/2011 7/8/2011 7/9/2011 7/10/2011 7/11/2011 7/12/2011 7/13/2011 9/29/2011 9/29/2011 9/29/2011 7/30/2015 7/30/2015 7/31/2015 MSCCs MSCC MSCCSample Depth (feet): 18-20 18-20 18-20 18-20 18-20 21-22 21-22 21 31 41 0-4 14.0 0-12 (mg/kg) (mg/kg) (mg/kg)C5-C8 Aliphatics VPH (mg/kg)4440 10500 284BQL BQL3200 1550 178 170 121ND ND ND 68 939 24,528C9-C12 Aliphatics VPH (mg/kg)6640 9300 604BQL BQL4680 2890 938 696398 ND ND NDC9-C18 Aliphatics EPH (mg/kg) NA NA NA NA NA NA NA NA NA NA NA NA NASum of VPH & EPH (mg/kg) NA NA NA NA NA NA NA NA NA NA ND ND NDC19-C36 Aliphatics EPH (mg/kg) NA NA NA NA NA NA NA NA NA NA NA NA NA CI 31,000 810,000C9-C10 Aromatics VPH (mg/kg)2250 3240 257BQL BQL1410 997 407 265 89.8ND ND NDC11-C22 Aromatics EPH (mg/kg) NA NA NA NA NA NA NA NA NA NA NA NA NASum of VPH & EPH (mg/kg) NA NA NA NA NA NA NA NA NA NA NA NA NAEPA Method 8260Acetone 8260 (mg/kg) BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL ND ND ND 24 14,000 360,000Benzene 8260 (mg/kg)76.8 309 1.97BQL BQL50.7 17.6 0.635J 0.713J BQLND ND ND 0.0056 18 164n-Butylbenzene 8260 (mg/kg)29.4 513.85 BQL 0.002J23.5 17.6 6.223.58 1.17 ND ND ND 4.3 626 16,350sec-Butylbenzene 8260 (mg/kg)8.17J 150.991 BQL BQL6.99 5.731.87 1.15J 0.308 ND ND ND 3.3 626 16,350tert-Butylbenzene 8260 (mg/kg) BQL BQL BQL BQL BQL BQL BQL BQL 0.228J 0.061J ND ND ND 3.4 626 16,350Ethylbenzene 8260 (mg/kg)214 585 20.8BQL BQL169 97 13.9 7.77 0.704ND ND ND 4.9 1,560 40,000IPE 8260 (mg/kg) BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL ND ND ND 0.37 156 4,088Isopropylbenzene 8260 (mg/kg)20.1 50.2 2.39BQL BQL17.6 12.5 3.06 1.830.337 ND ND ND 1.7 1,564 4,088Methylene Chloride 8260 (mg/kg) BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL ND ND ND 0.02 85 763MTBE 8260 (mg/kg) BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL ND ND ND 0.091 350 3,200Naphthalene 8260 (mg/kg)117 178 14.7BQL 0.00872.9 49.1 29.3 19.4 5.05ND ND ND 0.16 313 8,176n-Propylbenzene 8260 (mg/kg)86.7 181 10.1BQL BQL69.7 46.2 12.3 5.881.06 ND ND ND 1.7 626 16,350Toluene 8260 (mg/kg)419 1994 34.4BQL BQL362 135 9.85 7.5 0.717ND ND 0.0068 4.3 1,200 32,0001,2,4-Trimethylbenzene 8260 (mg/kg)564 1290 42BQL 0.007469 300 107 55.9 10.6ND ND ND 8.5 782 20,4401,3,5-Trimethylbenzene 8260 (mg/kg)191 331 21.1BQL 0.002J152 107 34.6 19.64.01 ND ND ND 8.3 782 20,440Total Xylenes 8260 (mg/kg)1180 2840 112BQL 0.001J948 555 95.1 52.8 5.23ND ND ND 4.6 3,129 81,760PID ReadingParts Per Million PPM (mg/kg) NA NA NA NA NA NA NA NA NA NA <1 <1 <1 NA NA NA> STGW > STGW > STGW < STGW < STGW > STGW > STGW > STGW > STGW > STGW < STGW < STGW < STGW> RES > RES < RES < RES < RES > RES > RES < RES < RES < RES < RES < RES < RESND = Not Detected Above The Laboratory Reporting LimitBQL = Compound not detected at a concentration above the method quantitation limit1,290.00 BOLD = values exceed Soil-to-Groundwater MSCCsmg/kg = milligrams per kilogramJ =Estimated concentration, below calibration range and above method detection limit948.00 >STGW = Soil concentration is greater than STGW MSCCs>RES = Soil concentration is greater than Residential MSCCs40,00012,264Industrial/Comercial NA = Not Analyzed BOLD = and shaded values exceed Residential MSCCsShown on Cross Section Figures 31 469TABLE 3Risk-Based Soil Analytical Results NC A&T Farm - Greensboro, NC5401,500
( Feet ) (Inches) (Feet) ( Feet ) ( Feet ) ( Feet ) ( Feet ) ( Feet )MW-19/29/2011 52 2 38.00 22 30 17 2 33MW-23/22/2012 55 2 30.60 35 20 30 2 23MW-33/22/2012 45 2 31.70 25 20 20 3 22MW-43/22/2012 50 2 37.12 30 20 25 2 22MW-56/13/2013 50 2 34.54 30 20 25 3 22MW-66/13/2013 50 2 34.54 30 20 25 3 22MW-77/20/2013 45 2 33.50 25 20 21 2 22MW-87/20/2013 45 2 34.03 25 20 21 2 22MW-92/20/2014 45 2 32.48 25 20 21 2 22MW-102/20/2014 50 2 33.36 30 20 25 3 22MW-112/28/2014 50 2 33.29 30 20 25 3 22MW-127/30/2015 50 2 35.08 20 30 15 3 32MW-137/31/2015 50 2 30.78 20 30 15 3 32MW-147/31/2015 47 2 31.14 17 30 13 2 32MW-1D3/23/201265(outer);75(inner)4(outer);2(inner)34.37 70 53(outer);65(inner)65 7 N/A= Not ApplicableInstallDateMonitoringWellTABLE 4MW Details Table NC A&T Farm - Greensboro, NCRiser IntervalScreen IntervalGrout IntervalBentonite IntervalSand IntervalWell DiameterDepth to WaterWellDepth
TOC Depth Depth Free Free Corrected Corrected
Well Date Elevation To To Product Product Depth To Water
Number Gauged Groundwater Product Thickness Adjustment Water Elevation
(feet) (feet) (feet) (feet) (feet) (feet) (feet)

MW-1 03/05/14 99.52 32.21 0.00 N/A 0.00 32.21 67.31
08/04/15 99.52 34.37 0.00 sheen 0.00 34.37 65.15

MW-2 03/05/14 95.31 28.51 0.00 N/A 0.00 28.51 66.80
08/04/15 95.31 30.65 0.00 N/A 0.00 30.65 64.66

MW-3 03/05/14 95.99 27.40 0.00 N/A 0.00 27.40 68.59
08/04/15 95.99 29.65 0.00 N/A 0.00 29.65 66.34

MW-4 03/05/14 99.31 33.17 34.89 1.72 1.29 34.46 64.85
08/04/15 99.31 34.68 33.79 0.89 0.67 34.01 65.30

MW-5 03/05/14 97.88 32.43 32.54 0.11 0.08 32.35 65.53
08/04/15 97.88 34.52 34.43 0.09 0.07 34.45 63.43

MW-6 03/05/14 98.06 31.32 0.00 N/A 0.00 31.32 66.74
08/04/15 98.06 34.43 0.00 N/A 0.00 34.43 63.63

MW-7 03/05/14 99.31 31.38 0.00 N/A 0.00 31.38 67.93
08/04/15 99.31 33.56 0.00 N/A 0.00 33.56 65.75

MW-8 03/05/14 99.34 32.12 0.00 N/A 0.00 32.12 67.22
08/04/15 99.34 34.22 0.00 N/A 0.00 34.22 65.12

MW-9 03/05/14 98.43 32.48 0.00 N/A 0.00 32.48 65.95
08/04/15 98.43 34.58 0.00 sheen 0.00 34.58 63.85

MW-10 03/05/14 101.97 33.36 0.00 N/A 0.00 33.36 68.61
08/04/15 101.97 35.59 0.00 N/A 0.00 35.59 66.38

MW-11 03/05/14 101.97 33.29 0.00 N/A 0.00 33.29 68.68
08/04/15 101.97 35.52 35.40 0.12 0.09 35.43 66.54

MW-1D 03/05/14 99.69 34.44 0.00 N/A 0.00 34.44 65.25
08/04/15 99.69 34.48 0.00 N/A 0.00 34.48 65.21

MW-12 03/05/14 NI NI NI NI NI NI NI
08/04/15 94.41 35.08 0.00 N/A 0.00 35.08 59.33

MW-13 03/05/14 NI NI NI NI NI NI NI
08/04/15 90.31 30.78 0.00 N/A 0.00 30.78 59.53

MW-14 03/05/14 NI NI NI NI NI NI NI
08/04/15 91.28 31.14 0.00 N/A 0.00 31.14 60.14
Table 5
Groundwater Elevation Data
NC A&T University Farm
DENR Incident # 37831
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NCAC 2L GCLsUNITS DATE MW-1 MW-1D MW-2 MW-3 MW-4 MW-5 MW-6 MW-7 MW-8 MW-9 MW-10 MW-11 MW-12 MW-13 MW-14 Groundwater Groundwater
StandardEPA 6200B MSV
Benzene ug/l Prior Data 5540 BQL BQL BQL NS-FP FP BQL 0.91 5.44 10100 BQL 2190 NI NI NI 1 5,000
08-05-15 3560 1.8 ND ND FP 3670 ND ND 18.5 19400 ND 2220 ND ND ND
Toluene ug/l Prior Data 9220 1.46 0.19J 0.24J NS-FP FP BQL 0.40J 16.1 1490 BQL 8760 NI NI NI 600 260,000
08-05-15 1870 3.2 ND ND FP 4040 ND ND 2 6200 ND 4910 ND ND ND
Ethylbenzene ug/l Prior Data 1550 1.57 BQL BQL NS-FP FP BQL 0.13J 65.3 136 65.3 1670 NI NI NI 600 84,500
08-05-15 361 ND ND ND FP 844 ND ND ND 798 ND 820 ND ND ND
Total Xylenes ug/l Prior Data 10200 5.38 BQL BQL NS-FP FP BQL 0.33J 314 711 BQL 7780 NI NI NI 500 85,500
08-05-15 4700 0.7 ND ND FP 9090 ND ND 111.7 3306 ND 4090 ND ND ND
Total BTEX ug/l Prior Data 26510 8.41 0.19J 0.24J NS-FP FP BQL 41.37J 400.84 12437 65.3 20400 NI NI NI No Standard No Standard
08-05-15 10491 5.7 ND ND FP 17644 ND ND 132.2 29704 ND 12040 ND ND ND
Isopropylbenzene ug/l Prior Data 80J 0.24J BQL BQL NS-FP FP BQL BQL 11.2 32.5 BQL BQL NI NI NI 70 2,500
08-05-15 48.3 ND ND ND FP 87.9 ND ND 2.7 105 ND 35.3 0.67 ND ND
MTBE ug/l Prior Data BQL BQL BQL BQL NS-FP FP BQL BQL BQL 12000 BQL BQL NI NI NI 20 20,000
08-05-15 1220 ND ND ND FP 2520 0.53 ND ND 17700 ND 54.0 8.5 ND ND
IPE ug/l Prior Data 390 BQL BQL BQL NS-FP FP BQL BQL BQL 1830 BQL BQL NI NI NI 70 70,000
08-05-15 639 ND ND ND FP 106 ND ND ND 2590 ND ND 2.5 ND ND
EDB ug/l Prior Data 100J BQL BQL BQL NS-FP FP BQL BQL BQL BQL BQL BQL NI NI NI 0.02 50
08-05-15 26.3 ND ND ND FP ND ND ND ND ND ND ND ND ND ND
n-Propylbenzene ug/l Prior Data 215J 0.63 BQL BQL NS-FP FP BQL BQL 37.3 49 BQL 364 NI NI NI 70 30,000
08-05-15 107 ND ND ND FP 283 ND ND 5.00 187 ND 106 ND ND ND
Chloroform ug/l Prior Data BQL BQL BQL BQL NS-FP FP 0.16J BQL 2.56 BQL BQL BQL NI NI NI 70 70,000
08-05-15 ND ND ND ND FP ND ND ND ND ND ND ND ND ND ND
1,1-Dichloroethane ug/l Prior Data 290 0.15J BQL BQL NS-FP FP BQL BQL BQL BQL BQL BQL NI NI NI 6 6,000
08-05-15 ND ND ND ND FP ND ND ND ND ND ND ND ND ND ND
N-Butylbenzene ug/l Prior Data BQL 0.20J BQL BQL NS-FP FP BQL BQL 6.43 BQL BQL BQL NI NI NI 70 6,900
08-05-15 ND ND ND ND FP ND ND ND ND ND ND ND ND ND ND
Sec-Butylbenzene ug/l Prior Data BQL 0.12J BQL BQL NS-FP FP BQL BQL BQL BQL BQL BQL NI NI NI 70.00 8,500
08-05-15 ND ND ND ND FP ND ND ND ND ND ND ND ND ND ND
1,2-Dichloroethane ug/l Prior Data 193 BQL BQL BQL NS-FP FP BQL BQL BQL 830 BQL BQL NI NI NI 0.4 400
08-05-15 212 ND ND ND FP 7.3 ND ND ND 761 ND ND ND ND ND
1,2-Dichloropropane ug/l Prior Data BQL BQL BQL BQL NS-FP FP BQL BQL BQL BQL BQL BQL NI NI NI 0.6 600
08-05-15 8.2 ND ND ND FP ND ND ND ND ND ND ND ND ND ND
Styrene ug/l Prior Data 0.5 BQL BQL BQL NS-FP FP BQL BQL BQL BQL BQL BQL NI NI NI 70 70,000
08-05-15 68.9 ND ND ND FP 12 ND ND ND 85.2 ND 15.6 ND ND ND
Naphthalene ug/l Prior Data 1100 0.79 BQL BQL NS-FP FP BQL BQL 33.7 223 BQL 284 NI NI NI 6 6,000
08-05-15 447 ND ND ND FP 974 ND ND 21.00 908 ND 226 ND ND ND
1,2,4-Trimethylbenzene ug/l Prior Data 2150 0.82 BQL BQL NS-FP FP BQL 0.11J 277 82 BQL 1610 NI NI NI 400 28500
08-05-15 1120 ND ND ND FP 2830 ND ND 264 801 ND 798 ND ND ND
1,3,5 - Trimethylbenzene ug/l Prior Data 595 1.05 BQL BQL NS-FP FP BQL BQL 83 94.5 BQL 822 NI NI NI 400 25,000
08-05-15 363 ND ND ND FP ND ND ND 105 ND ND ND ND ND ND
MADEP VPH
C5-C8 Aliphatics ug/l Prior Data 38300 BQL BQL BQL NS-FP FP BQL BQL BQL 38700 BQL 22600 NI NI NI 4200 No Standard
08-05-15 NS NS NS NS FP NS NS NS NS NS NS NS ND ND ND
C9-C12 Aliphatics ug/l Prior Data 31600 BQL BQL BQL FP FP BQL BQL BQL 2860 BQL 19600 NI NI NI 42,000 No Standard
08-05-15 NS NS NS NS FP NS NS NS NS NS NS NS ND ND ND
C9-C10 Aromatics ug/l Prior Data 8440 BQL BQL BQL NS-FP FP BQL BQL BQL 935 BQL 6730 NI NI NI 210 No Standard
08-05-15 NS NS NS NS FP NS NS NS NS NS NS NS ND ND ND
EDB ug/l Prior Data NSF BQL BQL BQL FP FP BQL BQL BQL 3.07 BQL 1.23 NI NI NI 0.02 50
08-05-15 NS NS NS NS FP NS NS NS NS NS NS NS ND ND ND
Lead ug/l Prior Data NSF BQL 7 15.4 FP FP 16.2 BQL BQL 5.87 BQL BQL NI NI NI 15 15000
08-05-15 NS NS NS NS FP NS NS NS NS NS NS NS ND ND ND
Bold values exceed 2L Standards
BQL = Below the quantitation limit of the method of analysis 5000
NI = Not Installed NS-FP = Not sampled - free product Bold and shaded values exceed GCLs NS = Not Sampled 15000
J = Estimated concentration detected by
NSF = Not sampled for this compound o
TABLE 6
Laboratory Results of Groundwater Samples
NC A&T Farm - DENR Incident #37831
Greensboro, NC
MONITORING WELL NUMBER
NA = Not Applicable or Not Analyzed for this Parameter
ND = Not Detected Above The Laboratory Reporting Limit
EPA Method 504.1 - EDB
EPA Method 6010 - Lead
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