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2. ECN Category (mark one) Supplemental � Direct Revision Change ECN Temporary Supersedure Discovery CancelN01d
□ □ □ □ □ □
:t .,_.., ... . CHANGE NOTICE Page 1 of __
3. Originator's Name. --.)rganizat1on, MSIN, and Telephone No.
R. B. Mercer, Geosciences Group/H4-56/6-8945 5. ProIect Title/No./Work Order No. 6. Bldg./Sys./Fac. No_
LLBG
8. Document Number Affected (include rev. and sheet{; 9. Related ECN No(s). no>
WHC-SD-EN-AP-015, Rev. 0 1_,,\.0 N/A
1 ECN 1 � 2 8 0 5 ProJ. ECN
4. Date
7. Impact Level 2
10. Related PO No.
N/A
11 a. Modification Work 11 b. Work Package 11 c. Complete Installation Work 1 ld_ Complete Restoration (Temp. ECN only) 0 Yes (fill out Blk. 11 bl Doc. No. 0 No (NA Blks. 11b, N/A 11c, 11d)
12. Description of Change
N/A N/A Cog. Engineer Signature & Date Cog. Engineer Signature & Date
Figures 3.1 through 3.5 {pages 146, 149, 151, 154, and 156 respectively) will be replaced by Figures 1 through 5 attached to this ECN. Locations for thirty-two additional groundwater monitoring wells are shown on these figures. The figures also show the Hanford well numbers for the sixteen newly installed wells described in the original document.
Table 3.2 (page 159) will be supplemented by Tables 1 through 5 of this ECN. These tables present the approximate coordinates, drill depths, and screen lengths for the additional wells. These coordinates are estimates and minor adjustments may be necessary to accommodate cultural features.
13a. Justification (mark one) 13b_ Justification Details Criteria Change 0
Design Improvement )CJ Environmental 0 As-Found D Facilitate Const. 0
Const. Error/Omission 0
Design Error/Omission D
See attachment.
14. Distribution (include name, MSIN, and no. of copies) RELEASE STAMP
A-7900-013 ( 11 /B8)
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I i. ECN (use no. /,om pg. 1) ENGJNEERING CHANG',.. f' OTICE Page i. of __
113805
15. Design Verification 16. Cost Impact 17 Schedule lmoact (days)
18.
Required ENGINEERING
0 Yes Additional □ s
ONo Savings □ �
CONSTRUCTION
Additional O S ______ _
Savings □ s _____ _
Improvement O ___ _
Delay □--
Change Impact Review: Indicate the related documents (other than the engineering docume'lts 1dentd1ed on Side 1) that will be affected by the change described in Block 12. Enter the affected document number in Block 19.
SOD/DD □ Se1sm1c/Stress Analysis □ Tank Calibration Manual □ Functional Design Criteria □ Stress1Des1g:i Report □ Health Physics Procedure □ Operating Specification □ Interface Control Drawing □ Spares Multiple Unit Listing □ Criticality Specification □ Calibration Procedure □ Test Procedures/Spec1f1cat1on □ Conceptual Design Report □ Installation Procedure □ Component Index □ Equipment Spec. □ Maintenance Procedure □ A.SME Coded Item □ Const. Spec. □ Engineering Procedure □ Human Factor Consideration □ Procurement Spec. □ Operating Instruction □ Computer Software □ Vendor Information □ Operating Procedure □ Electric Circuit Schedule □ OM Manual □ Operational Safety Requirement □ ICRS Procedure □ FSAR/SAR □ IEFD Drawing □ Process Control Manual/Plan □ Safety Equipment List □ Cell Arrangement Drawing □ Process Flow Chart □ Radiation Work Permit □ Essential Material Spec1ficat1on □ Purchase Requ1S1t1on □ Environmental Impact Statement □ Fae. Proc. Samp. Schedule □ □ Environmental Report □ Inspection Plan □ □ Environmental Permit □ Inventory Adjustment Request □ □
19. Other Affected Documents: (NOTE: Documents listed below will not be revised by this ECN.) Signatures below 1nd1cate that the signing organization has been notified of other affected documents listed below.
Document Number/Revision Document Number/Revision Document Number/Rev,s1on N/A
20. Approvals Signature Date
OPERATIONS AND ENGINEERING �
� � . L,_
Cog./P,.oJect"E .. gineer P./J.WI//JA/n °i/ r / "?/
Cog./Project Engr. Mgr. {!,.I, Ji., <r f) �a, '11) ,).. /t /-, I QA -e.1,,u . 12 o,..,,, k+- :J. � 4 - q I
Safety ]?.,J". Al0<andtr, IJj� J-(p-9/
Security _______________ _
Proj.Prog./Dept. Mgr. __________ _
Def. React. Div. ____________ _
Chem. Proc. Div. ____________ _
Def. Wst. Mgmt. Div. ___________ ____ _
Adv.React.Dev. Div. ___________ ____ _
Proj. Dept. ____________________ _
Environ.Div. ______________ ____ _
IRM Dept. ____________________ _
Facility Rep. (Ops) ____________ ____ _
Other ____________________ _
Signature ARCHITECT-ENGINEER
PE ------------------
Date
QA _________________ ------
Safety ____________________ _
Design ________________ ____ _
Other ____________________ _
DEPARTMENT OF ENERGY
ADDITIONAL
A-7900-01 JR (11/88)
Attachment to ECN 113805
13b. Justification Details
A Part B permit application for the Hanford Site 200 Areas Low-Level Burial Grounds (LLBG) (DOE-RL-88-20) has been submitted to Ecology. This application contains locations and construction details for twenty-eight additional groundwater monitoring wells not specified in the groundwater monitoring plan for the LLBG (WHC-SD-EN-AP-015, Rev. 0). Four additional well locations and revised locations for some wells have been identified in response to comments on the permit application. All thirty-two well locations will be documented in the next revision of the permit application. These monitoring wells are necessary to bring the LLBG monitoring plan into agreement with the permit application for final status for the groundwater monitoring requirements of WAC 173-303-645.
Table 1. Low-Level Waste Management Area 1 Proposed Groundwater Monitoring Wells
Interim Hanford Estimated Screen
Well Number Coordinates Depth Length (ft) (ft)
El0-MW3 N 46069
270 15 W 56725
El0-MW4 N 46506
255 10 W 56725
El0-MW5 N 46795
243 10 W 56475
El0-MW6 N 46795
242 10 W 56037
El0-MW9 N 46795
236 10 W 55550
Table 2. Low-Level Waste Management Area 2 Proposed Groundwater Monitoring Wells
Interim Hanford Estimated Screen
Well Number Coordinates Depth Length (ft) (ft)
El2-MW1 N 46620
209 10 W 51480
El2-MW2 N 46195
219 10 W 51480
El2-MW3 N 45770
233 15 W 51480
El2-MW4 N 45345
241 15 W 51480
'
E12-MW5 N 45095
249 20 W 51200
El2-MW6 N 44935
248 20 W 50800
E12-MW7 N 44760
244 20 W 50360
Table 3. Low-Level Waste Management Area 3 Proposed Groundwater Monitoring Wells
Interim Hanford Estimated Screen
Well Number Coordinates Depth Length (ft) (ft)
W5-MW2 N 46510
241 20 W 78245
W3-MW1 N 46510
234 20 W 77770
l.!) Table 4. Low-Level Waste Management Area 4
Proposed Groundwater Monitoring Wells
Interim Hanford Estimated Screen
Well Number Coordinates Depth Length (ft) (ft)
-
W4-MW6 N 38610
235 20 W 78100
W4-MW7 N 38210
223 20 W 78100
-
W4-MW8 N 37950
218 20 W 76545
W4-MW9 N 39230
245 20 W 78100
Table 5. Low-Level Waste Management Area 5 Proposed Groundwater Monitoring Wells
Interim Hanford Estimated Screen
Well Number Coordinates Depth Length (ft) (ft)
W6-MW1 N 45584
249 20 W 75010
W6-MW2 N 45385
452 20 W 74725
W6-MW3 N 45350
255 20 W 74685
W6-MW4 N 45150
262 20 N 74400
W6-MW5 N 45970
269 20 W 73670
W6�MW6 N 46510
270 20 W 73480
W6-MW7 N 46510
265 20 W 73800
W6-MW8 N 46510
486 20 W 74052
W6-MW9 N 46510
261 20 W 74077
W6-MW10 N 46510
261 20 W 74367
W6-MW11 N 46510
253 20 W 74682
W6-MW12 N 46510
248 20 W 75000
W6-MW13 N 46510
246 20 W 75312
W6-MW14 N 46510
245 20 W 75627
.,
-
W57000 WSSOOO
� -�- _E10-MW-5_ E10-MW, ____ _
z t=====m;;;;;te=�==Q:;;==0:=;;;'if"====l
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E10-MW6 299-E33-34
299-E33-30
218-E-10 Burial Ground
299-E33-35
�16-B-62 Crib
Waste Management Area 1 Boundary 0 Pre-1987 Well C 1990Well
Inactive Facilities e 1987Well A Planned Well
Railroad Tracks ■ 1989Well
200 East Area Boundary 0 500 1000feet
I I I I I
Figure 1. Well Locations for Waste Management Area 1
W51000 W49000
218-E-12B
Burial Ground
299-E33-33
% E12-MW4
299-E 36 � ..., □ E12-MW5 It' �9-E34-1
□ ll299-E34-8
�
EJ4-2 299-E33-37�
299-E27-16:i::tE12-MW6 E12-MW7
299-E27-11
A -�-
CJ Waste M anagement Area 2 Boundary 0 Pre-1987 Wen
� Inactive Facilities • 1987Wefl
[•: ...... :_-J Adive Facilities ■ 1989Weff
/ 200 East Area Boundary
0 Basalt Above Waler Table 0 500
I I I I
O 299-E26-1
□ 1990 Weff for other RCRA Facil�ies
A Planned Well
1000 feet I '
Figure 2. Well Locations for Waste Management Area 2
.__ __________ -- - -- --
W47000
l299-E35-1
I I I I
I
I I I
I __
v z
Wi9000 W77000
A -N-
o 299-Wl-9 299-Wl-3 299-W7-7 ________ WS-MW2 ________ _
299-W8-1 299-W7-1 W3-MW1 29 -W7-2 299-W?-5 299-W7-6 299-W?-8
c::J
WZ3 t-.::-,.-:•,I
�-.,..,,,,..
218-W-5 Burial Ground
216-W-3A Burial Ground
Waste Management Area 3 Boundary •
Inactive Facilities ♦
Active Facilities ■
Railroad Tracks
200 West Area Boundary
1987 Well
218-W-3A-E Burial Ground
a 1990Wen
1987 Deep Well 1l. Planned Wen
1989Well
0 500 1000 feet '
• I I I I I I
Figure 3. Well Locations for Waste Management Area 3
W75000
0
W79000
8
0
g-M
z
A -�-
299-W15-24
299-W18-26 W4-MW9
299-W18-23
W4-MW6
0 299-W18-3
W77000
W4-MW7 218-W-4C
Burial Ground W4- MWB
I�. 299-W18·221 �=========��==�§€:§�
I 299-W18- 21
�-
I I
c::l Waste M anagement Area 4 Boundary
� Inactive Facil ities
1.-•.. .-.•.:) Active Facilities
� Railroad Tracks
- _,,. 200 West Area Boundary
O Pre-1987 Wen e 1987Well
♦ 1987 Deep well
■ 1989Well
0 I , I I
□ 1990Well
J::t.. Planned Well
1000feet ' I
Figure 4. Well Locations for Waste Management Area 4
!
CJ
c::J
� -
-
W75000
I
Waste Management Area 5 Boundary
lnadive Facilities
Adive Facilities
Railroad Tracks
200 West Area Boundary
W73000
0299-WS-1
0 Pre-1987 Well C 1990 Well
e 1987Well A Planned Well
■ 1989Well V Planned Deep Well
0 500 1000 feet I I I I I
Figure 5. Well Locations for Waste Management Area 5