W912DR18R0055_-_Attachment_AS_-_Boring_Logs_PWS.pdf

Scale (ft bgs)

Blow Count

Sample Rec.

(inch)

PID

(ppm)

STRATIGRAPHIC LOG

7 - 17' 5'

NOTES:

5-7'_rusty orange clay

7 to 17' bgs (5 ft recovery).

-top 3' silty clay, rusty orange, some minor grey mottling observed -bottom 2' gravelly clay with some cobbles, very poorly sorted, subrounded-subangular Driller: very ground up and not much structure

17 to 17.8 ft bgs_gravelly sand, cobbles are subrounded-subangular 17.8-19_gravelly clay, gravel/cobbles are about 20% of matrix and are subrounded-subangular 19-21.5, rusty orange clay, some gravel 21.5-30, med grey clay, occasional pebbles

Boring terminated at 30' bgs

Well construction:

15 - 20' bgs_well screen (approximately 1' screen in clay) 20 - 30' bgs_10' of tail pipe 10 - 30' bgs_filter pack (GP #2)

03/16/16_Develop well (overpumping and surge block) and estimate yield over short duration test

Located south relative to OU8-PWS-2.

Project: DSCR OU8 - South

Location: DSCR, Richmond VA Date: March 15, 2016

Project No: 02118201.0001 Borehole:

OU8-PWS-1 Logger: Tina Doerken Drilling Equipment: Roto-Sonic Track Drill

(Geoprobe 8140LS), Saedacco, Fort Mill, SCDriller: Will Keyes

+2

March 2016

SLIP CAP

tdoerken Typewritten Text tdoerken Typewritten Text tdoerken Typewritten Text tdoerken Typewritten Text tdoerken Typewritten Text tdoerken Typewritten Text tdoerken Typewritten Text tdoerken Typewritten Text tdoerken Typewritten Text tdoerken Typewritten Text tdoerken Typewritten Text tdoerken Typewritten Text tdoerken Typewritten Text (approx) tdoerken Typewritten Text tdoerken Typewritten Text tdoerken Typewritten Text tdoerken Typewritten Text OU8-PWS-1 and OU8-PWS-2 were constructed identically.

tdoerken Typewritten Text tdoerken Typewritten Text