4101_Guilford_HighPointRiverdale_Seaboard_MSWLF_CAReport_FID1404128_20200424

SEABOARD GROUP II AND THE CITY OF HIGH POINT
April 24, 2020
Mr. Joe Ghiold, Project Manager
North Carolina Department of Environmental Quality
Division of Waste Management
1646 Mail Service Center
Raleigh, North Carolina 27699-1646
Re: Remedial Action Progress Report, 2020 First Quarter
Former Seaboard Chemical and Riverdale Drive Landfill Site
Jamestown, Guilford County, North Carolina
Dear Mr. Ghiold:
The Seaboard Group II and the City of High Point are providing this 2020 First Quarter
Remedial Action Progress Report for the former Seaboard Chemical Corporation facility and the
closed Riverdale Drive Landfill located in Jamestown, NC.
During the first quarter of 2020 the mechanical and phytoremediation treatment systems
processed 4,226,902 gallons of extracted groundwater and leachate. Also during the first quarter
of 2020 the following shutdowns exceeding one day in duration occurred:
Date
Duration
Reason for Shutdown
January 1, 2020
1.5 days
Automatic shutdown, coding issue
January 4, 2020
2.0 days
Automatic shutdown, float adjustments
January 26, 2020
1.5 days
Automatic shutdown due to heavy rain
February 6, 2020
1.25 days
Automatic shutdown, multiple lightning strikes
March 8, 2020
1.5 days
Automatic shutdown, programming lost
March 16, 2020
3.0 days
Manual shutdown, scheduled system repairs
The PLC/HMI control system update is complete and, with the exception of minor coding issues
as noted on the above table, has been operating as anticipated. The new PLC/HMI control
update has provided for a more stable treatment system operation. The new system has increased
functionality which allows for remote operation and monitoring. The new system also allows for
the use of readily available replacement parts and components which minimize operational
downtime.
The 2019 Hazardous Waste Biennial Report for the former Seaboard Chemical Corporation
facility was prepared and submitted electronically to the NC Hazardous Waste Section on
February 28, 2020.

The attached figures provide the results of the full scale operation of the treatment system during
the first quarter of 2020, including: Operating Data, Process Flow Data, Static Water Level Data,
System Chemistry, Utility Use Data, and Contaminant Removal Efficiency.
Please contact Mr. Gary D. Babb, P.G. (919/605-4719) or Craig Coslett (610/435-1151) if there
are any questions or comments. Please direct correspondence related to this matter to:
Mr. Craig Coslett
de maximis, inc.
1550 Pond Road, Suite 120
Allentown, PA 18104
Communications via electronic mail should be directed to [e-mail] and
[e-mail].
Respectfully,
Seaboard Group II and City of High Point
Gary D. Babb, P.G.
Babb & Associates, P.A.
cc: Dave Nutt, Esq. - Seaboard Trustee
Steve Anastos - Seaboard Trustee
Craig Coslett — Project Oversight Coordinator
Terry Houk - City of High Point Trustee
Amos Dawson, Seaboard Group II Counsel
Jackie Drummond - NCDEQ Division of Solid Waste

SEABOARD GROUP II & THE CITY OF HIGH POINT
QUARTERLY LOG -Q12020
Quarterly
Units of
INITIAL
WEEK
WEEK2
WEEK
WEEK
WEEK
WEEK
WEEK
WEEK
WEEK
WEEK 10
WEEK 11
WEEK 12
WEEK 13
Totals
Measure
METER READING
m
m
LEACHATE (GALLONS)
820,493
938,495
1,097,690
1,294,165
1,399,929
1,547,738
1,655,074
1,823,493
1,991,938
2,152,037
2,267,791
2,381,417
2,459,968
2,613,015
1,792,522
GALLONS
LSl-RWs (GALLONS)
2,877,242
2,906,735
2,941,847
2,978,063
3,030,648
3,119,029
3,189,875
3,276,701
3,361,043
3,440,161
3,503,844
3,588,865
3,639,232
3,716,779
839,537
GALLONS
PWDR1(GALLONS)
2,437,473
2,493,968
2,572,639
2,652,141
2,707,142
2,792,739
2,900,624
2,985,493
3,148,474
3,304,213
3,433,460
3,588,853
3,682,263
3,837,338
1,399,865
GALLONS
SIS-RWs(GALLONS)
1,594,864
1,611,702
1,636,903
1,664,522
1,681,724
1,705,123
1,717,018
1,750,379
1,777,141
1,801,638
1,818,735
1,840,006
1,854,612
1,878,905
284,041
GALLONS
PHYTO DISCH. (GALLONS)
8,412,968
8,632,320
8,921,340
9,250,902
9,474,558
9,810,028
10,102,407
10,465,981
10,894,019
11,298,527
11,615,248
11,991,136
12,229,386
12,639,870
4,226,902
GALLONS
AIR STRIP. RUNTIME (FIRS)
5,216
5,322
5,476
5,637
5,746
5,913
6,054
6,221
6,389
6,556
6,692
6,858
6,955
7,123
1907 (87.3%)
HOURS
LSl COMP RUN (HOURS)
5,697
5,801
5,956
6,091
6,227
6,394
6,535
6,702
6,870
7,035
7,171
7,337
7,433
7,601
1,904
HOURS
LSl COMP LOAD (HOURS)
3,577
3,615
3,673
3,741
3,782
3,843
3,887
3,956
4,022
4,090
4,147
4,215
4,257
4,331
754
HOURS
LS2 COMP RUN (HOURS)
16,080
16,180
16,300
16,460
16,550
16,680
16,750
16,910
17,070
17,230
17,360
17,500
17,590
17,750
1,670
HOURS
LS2 COMP LOAD (HOURS)
1,648
1,659
1,674
1,692
1,703
1,719
1,727
1,748
1,767
1,785
1,800
1,816
1,827
1,846
198
HOURS
ELECT. UPPER(kW-Hr)
13,248
13,327
13,405
60
154
250
322
410
503
597
676
735
779
831
(12,417)
KW-HR
WATER METER (CF)
429,590
429,882
430,144
430,464
430,684
430,978
431,319
431,807
432,173
432,767
433,239
433,820
434,261
435,186
41,858
GALLONS
BACKWASH PUMP (GAL.)
248,998
251,093
252,008
253,834
254,742
255,656
257,478
260,206
262,023
265,657
268,386
272,023
274,753
281,133
32,135
GALLONS
IRRIGATION ZONES (GALLONS):
ZONE 1
21,535
35,295
53,417
75,248
89,614
110,564
128,388
153,346
183,598
211,957
233,964
260,834
277,069
305,596
284,061
GALLONS
ZONE 2
56,621
70,115
87,449
107,234
121,382
142,275
160,003
183,174
210,800
236,882
256,907
281,547
295,793
322,112
265,491
GALLONS
ZONE 3
48,353
62,990
82,222
104,008
118,195
140,728
159,471
183,278
211,656
238,453
259,087
284,029
299,722
326,786
278,433
GALLONS
ZONE
40,034
52,442
67,995
83,646
96,165
115,235
131,837
152,160
176,174
198,738
216,290
237,507
250,774
273,808
233,774
GALLONS
ZONE 5
45,893
60,382
78,199
99,848
114,054
135,282
153,466
177,238
205,372
231,754
252,205
276,775
292,274
319,130
273,237
GALLONS
ZONE 6
46,477
61,201
79,429
101,791
115,808
138,311
157,823
181,532
210,016
236,270
257,391
282,267
297,886
324,951
278,474
GALLONS
ZONE 7
48,139
63,060
82,225
104,475
119,522
142,588
162,459
187,013
216,150
243,265
264,583
290,123
305,690
333,541
285,402
GALLONS
ZONE 8
48,138
63,228
82,610
105,385
120,044
143,377
163,527
188,046
216,687
243,192
264,290
289,034
305,045
332,293
284,155
GALLONS
ZONE 9
47,215
61,640
81,033
105,374
121,697
143,854
163,003
187,514
216,367
243,305
264,828
290,064
305,378
332,580
285,365
GALLONS
ZONE 10
49,191
64,218
84,098
106,914
121,782
144,730
165,046
189,984
219,419
246,603
268,202
293,473
310,154
338,079
288,888
GALLONS
ZONE 11
28,293
36,792
52,828
64,458
72,129
83,251
93,439
105,706
120,268
134,079
145,304
158,248
166,110
179,701
151,408
GALLONS
ZONE 12
45,789
60,047
79,330
100,562
114,860
137,204
156,591
180,530
209,252
236,301
257,520
282,545
298,149
324,063
278,274
GALLONS
ZONE 13
41,250
54,149
71,409
91,170
104,481
124,822
142,795
165,586
192,229
217,253
237,030
260,256
274,477
300,182
258,932
GALLONS
ZONE 14
40,020
52,954
69,795
88,369
102,078
122,118
139,610
161,522
187,274
211,681
230,802
253,436
267,191
292,079
252,059
GALLONS
ZONE 15
41,715
55,329
73,083
93,062
106,655
127,285
145,618
168,429
195,620
221,502
241,446
265,224
279,378
305,403
263,688
GALLONS
Zone 16
11,033
24,325
42,022
62,200
76,751
97,114
115,587
138,266
164,933
190,198
209,544
233,236
247,493
272,990
261,957
GALLONS
DAILYAVERAGE
Average
Units
AVERAGE RUNTIME
63%
92%
96%
65%
99%
84%
99%
100%
99%
81%
99%
58%
100%
87%
Percent
AVERAGE FLOW (GPM)
21.8
28.7
32.7
22.2
33.3
29.0
36.1
42.5
40.1
31.4
37.3
23.6
40.7
32.3
GPM
EFF. DISCH. (GALLONS)
31,336
41,289
47,080
31,951
47,924
41,768
51,939
61,148
57,787
45,246
53,698
34,036
58,641
46,449
GPD
TOTAL INFLUENT (GALLONS)
31,547
42,597
48,545
32,936
49,312
42,566
53,354
63,219
59,922
46,540
53,616
33,848
58,566
47,428
GPD
INF. LEACHATE (GALLONS)
16,857
22,742
28,068
15,109
21,116
15,334
24,060
24,064
22,871
16,536
16,232
11,222
21,864
19,698
GPD
INF. LS1-RWs (GALLONS)
4,213
5,016
5,174
7,512
12,626
10,121
12,404
12,049
11,303
9,098
12,146
7,195
11,078
9,226
GPD
INF. PWDR) (GALLONS)
8,071
11,239
11,357
7,857
12,228
15,412
12,124
23,283
22,248
18,464
22,199
13,344
22,154
15,383
GPD
INF. SIS-RWs (GALLONS)
2,405
3,600
3,946
2,457
3,343
1,699
4,766
3,823
3,500
2,442
3,039
2,087
3,470
3,121
GPD
WEEKLY RUNTIME (DAYS)
4.4
6.4
6.7
4.5
7.0
5.9
7.0
7.0
7.0
5.7
6.9
4.0
7.0
6.1
DAYS/WK
LSl COMP RUN (HOURS)
14.9
22.1
19.3
19.4
23.9
20.1
23.9
24.0
23.6
19.4
23.7
13.7
24.0
20.9
HRS/DAY
LSl COMP LOAD (HOURS)
5.4
8.3
9.7
5.9
8.7
6.3
9.9
9.4
9.7
8.1
9.7
6.0
10.6
8.3
HRS/DAY
LS2 COMP RUN (HOURS)
14.3
17.1
22.9
12.9
18.6
10.0
22.9
22.9
22.9
18.6
20.0
12.9
22.9
18.4
HRS/DAY
LS2 COMP LOAD (HOURS)
1.6
2.1
2.6
1.6
2.3
1.1
3.0
2.7
2.6
2.1
2.3
1.6
2.7
2.2
HRS/DAY
ELECTRICITY(kW-Hr)
11.3
11.1
11.0
13.4
13.7
10.3
12.6
13.3
13.4
11.3
8.4
6.3
7.4
11.0
kW-HR/DAY
CITY WATER (GALLONS)
41.7
37.4
45.7
31.4
42
49
70
52
85
67
83
63
132
460
GPD
BACKWASH PUMP (GAL.)
299.3
130.7
260.9
129.7
131
260
390
260
519
390
520
390
911
353
GPD
EFFLUENT LABS
Fe (mg/L)
0.57
1.04
0.47
2.41
1.09
0.58
0.47
0.68
0.5
0.4
0.99
19
0.59
0.92
2.2
mg/L
pH
6.53
6.81
6.34
6.73
6.37
6.32
6.31
6.33
6.5
6.30
7.02
6.30
6.31
6.20
6.4
m/L
ORP
127
169
132
191
182
168
146
116
93
188
85
194
156
164
153
mV
COND
1,282
1,088
1151
1343
1412
1311
1395
1,351
1,376
1,318
1,214
1,207
1,320
1,282
1,290
uS/cm
TDS(mg/L)
905
769.1
810.7
959.9
1007
933.5
998.1
960
979
937
861
853
938
906
916
mg/L
TSS (mg/L)
2
26
3
49
13
10
12
7
4
3
18
19
7
10
13.9
mg/L
COD (mg/L)
94
84
84
99
96
73
92
85
59
65
65
64
84
129
83
mg/L
WELL LEVELS
Elevation
Change
OWDR-4
682.16
678.58
678.58
679.11
678.95
678.78
673.75
678.0
(4.20)
OWDR-2
681.90
678.47
678.47
679.00
678.83
678.66
679.14
673.22
673.87
673.30
674.99
673.50
673.22
673.57
676.0
(5.88)
PWDR-1
689.23
674.70
674.70
674.69
674.71
674.70
674.71
658.73
658.71
658.72
658.72
658.70
658.72
658.72
666.1
(23.14)
OWDR-3
681.80
686.67
686.67
686.67
686.67
686.87
686.67
686.67
686.67
686.67
686.67
686.67
686.67
686.67
686.7
4.89
PW-6D (696.79)
680.37
684.78
684.78
684.78
684.78
684.78
684.78
684.78
684.78
684.78
684.78
684.78
684.78
684.78
684.8
4.41
OWLFS-2
680.00
PW-16D
680.52
PW-15D
683.12
682.89
683.00
683.26
682.65
683.53
682.15
681.57
681.28
682.58
681.06
681.01
681.18
(683.12)
ESTIMATED LAKE LEVEL
682.6
682.6
682.6
682.6
682.6
681.6
682.0
681.7
681.7
681.5
681.5
681.2
681.59
681.62
681.9
SOURCE WATER
PWDR-1
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
LEACHATE(LCHT)
YES
YES
YES
YES
YES
YES
YE S
YES
YES
YES
YES
YES
YES
YES
LS-1 RECOVERY WELLS
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
SIS RECOVERY WELLS
YES
YES
YES
YES
YES
YES
YESI
YES
YES
YES
YES
YES
YESI
YES

70000
50000
LA
z
O
J
J
Q
40000
O
J
LL
}
J_
Q
30000
W
a
w
a
20000
10000
n
SEABOARD Q1 2020
1 2 3 4 5 6 7 8 9 10 11 12 13 14
WEEK
8
7
5
INF. LEACHATE (GALLONS)
INF. LS1-RWs (GALLONS)
4
—*--INF. PWDR1 (GALLONS)
—*- INF. SIS-RWs (GALLONS)
3 —W- EFF. DISCH. (GALLONS)
WEEKLY RUNTIME (DAYS)
2
1
w

695.00
J
W
J 675.00
J
J
W
I-10 1111
665.00
655.00
SEABOARD Q1 2020
0 1 2 3 4 5 6 7 8 9 10 11 12 13
WEEK
OWDR-4
OWDR-2
PWDR-1
OWDR-3
PW-6D (696.79)
tOWLFS-2
tPW-16D
DPW-15D
ESTIMATED LAKE LEVEL

SEABOARD Q1 2020
1,600
1,400
1,200
1,000
O
Fe (mg/L)
o
fpH
800 p
--+—TSS (mg/L)
z
O
U
--X--ORP
oac
-I-COND
600 0
fTDS (mg/L)
COD (mg/L)
400
200

SEABOARD Q1 2020
7!1 r%
16.0
14.0
12.0
W
a
ce
W
10.0
a
J_
a
--$--LS1 COMP RUN (HOURS)
8.0
z
2
fLS1 COMP LOAD (HOURS)
a
g
- LS2 COMP RUN (HOURS)
z
LS2 COMP LOAD (HOURS)
6.0
uELECTRICITY
(kW-Hr)
W
0
a
4.0
2.0

Water Treatment System
Dioxane
Chlorinated
ethenes
Chlorinated
ethanes
Other
organics
Total
Mass
kg
kg
kg
kg
k
Step 1
Influent'
11.0
23.7
15.8
14.4
64.9
Mechanical
Effluent 1
10.7
0.39
0.25
0.19
11.5
Treatment
System
% Contaminant Removal
2.7%
98.3%
98.4%
98.7%
82.3%
Irrigation water
10,700
390
250
190
11,500
Drainage water
3,978
ND
ND
ND
3,978
Lys 2 (vol. scaling factor, 353)
Lys 7 (vol. scaling factor, 389)
741
ND
ND
37
778
Lys 8 vol. scalin actor, 455
313
ND
ND
150
463
Lys 9 vol. scalin actor,282
713
ND
ND
17.4
730
Step 2
Lys 10 vol. scalin actor, 446
1,043
ND
ND
27.6
1,070
Phytoremediation
Lys 11A vol. scalin actor, 292
5,034
8.3
6.7
ND
5,049
System
Lys 11B vol. scalin actor, 871
353
ND
ND
ND
353
Lys 12E vol. scalin actor, 157
530
ND
ND
5.3
535
Lys 12W vol. scalin actor, 398
136
ND
ND
ND
136
Lys 13E vol. scalin actor, 207
1,576
ND
3.6
17.9
1,597
Lys 13W vol. scalin actor, 292
69.8
ND
ND
ND
69.8
Lys 14 vol. scalin actor, 299
11.1
ND
ND
ND
11.1
Lys 15 vol. scalingfiactor, 1,033
179
ND
ND
2,376*
179
Averse n=13
1,129
0.64
0.79
21.3
1,150
Step 2
% Contaminant Removal
89.4%
99.8%
99.7/
88.8/0 °
90.0
Overall Percent Contaminant Removal
89.7%
99.99%
99.99%
99.8%
98.2%
1
Apparent variations in the influent and effluent mass are a result of variations related to residence time through the mechanical treatment system.
Averages calculated from a greater number of samples show that influent and effluent mass are essentially equal, as expected.