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SANJ O A Q U I N Environmental Health Department
<br /> Y
<br /> Complaint Record Daily Time and Activity Summary from 6/21/2013 to
<br /> 6/21/2025 for COVEWFWP8 located at
<br /> 1000 ROTH RD
<br /> Activity Date Recorded by
<br /> 02/11/2020 Checked in at Union Pacific Railroad front office. Onsite and met with Danielle PE 2546 FLORIDO
<br /> 270 min Powell and Brandon Eck. SC 544
<br /> Per Danielle, five feet south of SS7, designated SS8, 0.0 ppm was detected in the
<br /> soil just beneath the ballast. Sample SS8-9 was taken at 9 in. depth, 0.0 ppm.
<br /> Sample SS8-24 was taken at 24 in. depth, 0.0 ppm.
<br /> 20 feet north of SS7, witnessed Brandon hand auger hole SS9, from which 0.1
<br /> ppm was detected at 16 in. depth. Sample SS9-22 was taken at 22 in. depth with
<br /> 0.0 ppm PID reading. At 30 in., there was 0.0 ppm reading, and no diesel odor
<br /> detected per Danielle. Sample SS9-33 was taken at 33 in. depth with 0.0 ppm
<br /> reading.
<br /> Per Danielle, the following samples were taken yesterday and will be analyzed,
<br /> unless otherwise noted:
<br /> Sample Area SS1, located middle of track: SS1-22", 27.1 ppm; SS1-28", 34.1
<br /> ppm; SS1-34", 28.1 ppm; SS1-40", 12.3 ppm; SSI-46", 3.3 ppm; and SS1-48", 6.4
<br /> ppm, no odor. Per Danielle, SS1-22 and SS1-48, will likely be the only SS1
<br /> samples to be analyzed.
<br /> SS2, approx. 5 ft. east of SS1: SS2-16", 0.8 ppm, no odor; and SS2-30", 1.6 ppm,
<br /> placed on hold for possible analysis; SS2-54", 0.6 ppm.
<br /> SS3, 2 ft. east of SS2: SS3-14", 0.5 ppm, no odor; and SS3-24", 0.6 ppm, no odor,
<br /> placed on hold for possible analysis.
<br /> SS4, approx. aft. west of SSI: SS4-12", 143.1 ppm; and SS4-40", 25.2 ppm, w/
<br /> odor, something hard was hit at this depth thus digging stopped for SS4.
<br /> SS5, approx. 5ft north of S1: SS5-14", 141.0 ppm; and SS5-49", 6.1 ppm, no odor.
<br /> SS6, approx. 5 ft south of S1: SS6-14", 136.0 ppm; and SS6-46", 3.7, no odor.
<br /> Per Danielle, she had accidentally poured soil samples SS7-13 and SS7-54 back
<br /> onto the waste soil piles instead of placing the soil samples into sample jars.
<br /> Witnessed the following samples and readings taken from hole SS7:
<br /> Sample SS7-17", 96.6 ppm, with odor;
<br /> readings at 44 in. depth, 21.77 ppm; 46 in., 42.9 ppm; approx. 50 in., 28.1 ppm; 56
<br /> in., 20.8 ppm, with odor; and
<br /> Sample SS7-60", 8.9 ppm, no odor.
<br /> Danielle and Brandon asked me how SJC would like the holes to be backfilled,
<br /> with ballast or grout. After discussions with Elena Manzo, Ld Sr REHS, and Jeff
<br /> Wong, REHS in Water Quality Unit,Arcadis needs to obtain a boring permit, since
<br /> they augered deeper than 3 ft. Per Danielle, no more exploratory sampling will be
<br /> conducted, and the sampling areas will be backfilled per the boring permit, once
<br /> obtained by Arcadis. Danielle is to email me a copy of the sample chain of custody
<br /> and inform me if she receives different instructions from the Arcadis project
<br /> manager, Scott Hackman.
<br /> Checked out at front office and left site for EHD.
<br /> Page 5 of 10
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