DRC-2018-005680 - 0901a06880840ae5

DRC-2M -005650 ENE GYSOLUTIONS
June 8, 2017
Mr. Scott T. Anderson, Director
Division of Waste Management and Radiation Control
P.O. Box 144880
Salt Lake City, UT 84114-4880
CD18-PiThif Waste Management
and Radiation Control
JUN - 8 2018
Subject: Ground Water Quality Discharge Permit No. UGW450005 (GWQDP): Change in
Groundwater Elevation Monitoring Frequency from Quarterly to Monthly —
Compliance Monitoring Well GW-29
Dear Mr. Anderson:
In accordance with Part I.F.5.a of the GWQDP, because the difference between first and second
quarter 2018 depth-to-water measurements exceeds the criterion of 0.40 feet, EnergySolutions is
providing this notification and immediately increasing the water level measurement frequency
from quarterly to monthly at well GW-29. The depth-to-water measurements and quarterly
measurement difference are listed in Table 1. Monthly depth-to-water measurements at
monitoring well GW-29 will begin in June 2018.
Table 1 — Comparison of First and Second Quarter 2018 Groundwater Elevations
Compliance
Monitoring Well
1st Quarter 2018
DTW Measurement
(ft btc)
2' Quarter 2018
DTW Measurement
(ft btc)
DTW Measurement
Difference
(ft)
GW-29 24.72 (2/13/18) 24.07 (5/18/18) 0.65
DTW = depth to water
ft btc = feet below top of casing
Should you have any questions regarding this submission please feel free to contact me at (801)
303-0187.
Sincerely,
tedpg-- 4/0 iz4c--
Robert W. Sobocinski
Groundwater Program Manager
cc: Charles Bishop (DWMRC)
Don Verbica (DWMRC)
I certifi) under penalty of law that this document and all attachments were prepared under my direction or supervision in accordance
with a system designed to assure that qualified personnel properly gather and evaluate the information submitted. Based on my
inquiry of the person or persons who manage the system, or those persons directly responsible for gathering the information, the
information submitted is, to the best of my knowledge and belief true, accurate, and complete. I am aware that there are significant
penalties for submitting false information, including the possibility offine and imprisonment for knowing violations.
299 South Main Street, Suite 1700 • Salt Lake City, Utah 84111
[phone] • Fax: [phone] • www.energysolutions.com