1
Potential Impacts of Variance:
Work Variance Request Form Groundwater Remedy Phase 1 Construction, PG&E Topock Compressor Station, Needles, California
PG&E TOPOCK GROUNDWATER REMEDIATION PROJECT
Work Variance Request #8 – Proposed changes to the alignment of Pipeline C Segment C6
Request Prepared By: PG&E
Date Submitted: September 10, 2019
Variance Request No.: 8
Location: The eastern slope of the MW‐20 Bench, just south of the stairway from floodplain to the bench top
Request Approval From: DTSC and DOI
Date Approval Required: TBD
Map Area: N/A
Land Manager: BLM Land Owner Parcel No: 650‐161‐09
Current Vegetative Cover/Land Use: Several palo verde/mesquite trees along with creosote bushes
Existing Sensitive Resource? No X Yes, Specify: Ethnobotanical plants
Variance From: Mitigation Measure Work Plan/Procedure Response to Comments
Drawing Permit Condition Other
Detailed Description of Variance and Justification (Attach additional information if necessary):
Attachments: Photo X Construction Drawing Aerial Photo Mark‐Up Correspondence Other
Air Quality Hazardous Materials Aesthetic (see visualizations)
Biological Resources Noise Water Resources
Soils Paleo Resources
Cultural Resources Hydrology and Water Quality
X
X
Description and Justification:
This Work Variance Request (WVR) addresses proposed changes to the alignment of Pipeline C Segment C6 to reduce the amount of soil disturbance, reduce the number of plants to be removed, reduce the safety risks associated with construction atop the MW‐20 bench, and reduce the hazards associated with operation at the MW‐20 bench during construction. The specifics are described below and included in the attached drawings.
a) Reduce amount of soil disturbance. The original alignment in the 100% design would generate approximately 1430 cubic yards (CY) of excavated soil, mostly (1040 CY) from atop the MW‐20 bench. The original alignment requires excavation to about 7.5 feet below ground surface (bgs) for the entire segment C6 extent atop the Bench to allow undercrossing and installation alongside the existing IM‐3 utilities. Some of the bench top excavation volume is due to sidewall benching for excavation protection.
PG&E proposes to shift the alignment south where the pipeline can be dug to a depth of about 3.5 feet bgs, leaving deeper excavation limited only to crossing small‐diameter IRZ lateral pipes and conduits under the existing IM‐3 utilities. This shift reduces the amount of soil disturbance by 57% to 610 CY.
b) Reduce number of plants to be removed. The original alignment would require the removal of about three palo verde trees and four creosote bushes. The proposed alignment would save those plants, but would require the removal of two mesquite trees and one creosote bush. Every effort will be made to swing the alignment as far north as possible to further reduce the number of plants to be removed.
c) Reduce safety risks associated with deep excavation and working under energized utilities. The original alignment would require exposure of 110 feet of active IM‐3 utilities to allow for crossing of the Segment C6. The IM‐3 facilities would remain energized during construction, posing a significant health and safety risk for workers that would have to work directly underneath the exposed and energized utilities. Energized utilities include power and IM‐3 process water/waste. In addition, deep excavation to about 7.5 feet bgs would occur, and construction access would ….
X
20+00
20+50
21+00
2
1
+
5
0
2
2
+
0
0
2
3
+
5
0
2
4
+
0
0
2
4
+
5
0
2
5
+
0
0
25+
55
21+
22
25+
75
1
0
+
0
0
2
2
+
7
5
2
2
+
5
0
2
3
+
0
0
10+
50
11+
00
1
1
+
5
0
12+
00
12+50
13+00
20+
14
20+
61
2
1
+
7
3
2
2
+
5
1
2
4
+
1
1
2
4
+
9
3
1
1
+
4
0
25+50
I
R
Z
-
1
6
I
R
Z
-
1
5
I
R
Z
-
1
9
I
R
Z
-
1
7
I
R
Z
-
2
0
I
R
Z
-
2
1
20+00 21+00 22+00 23+00 24+00 25+00
E
E
UT
IL
IT
Y C
RO
SS
IN
G
UT
IL
IT
Y C
RO
SS
IN
G
22+75
IRZ-14
IRZ-15
IRZ-16
IRZ-17
IRZ-18 IRZ-20
IRZ-21
TE
E T
O P
IP
EL
IN
E A
EXISTING GROUND
TRENCH DEPTH
JU
NC
TIO
N P
OIN
T
TO
M
W-2
0 B
EN
CH
L EXIST. 2-3" ELECTRIC AT 24" BGS
C
L EXIST. 2-3" ELECTRIC AT 24" BGS
C
PIPELINE "C" - PLAN
(SCALE: 1" = 20')
PIPELINE "C" - PROFILE
(SCALE: 1" = 20' H; 1" = 10' V)
N
A
T
I O
N
A
L T
R
A
I L S
H
W
Y
.
HH3-1E,I
HH3-2E,I
HH3-3E,I
HH3-4E,I
HH3-5E,I
HH4-14E,I
HH4-15E,I
WARNING: UTILITY CROSSING
F
O
R
C
O
N
T
I
N
U
A
T
I
O
N
S
E
E
S
H
E
E
T
C
-
0
7
-
4
3
0 60
HORIZ: SCALE: 1"=20'
20 40
0 30
VERT: SCALE: 1"=10'
10 20
HH
4-1
4E
,I
P4-15
C-07-122
P4-16
C-07-122
HH
4-1
5E
,I
MA
TC
HL
IN
E F
OR
C
ON
TIN
UA
TIO
N S
EE
S
HE
ET
C
-0
7-4
0
HH
3-5E
,I
P3-6
C-07-121
HH
3-4E
,I
P3-5
C-07-121
HH
3-3E
,I
MA
TC
HL
IN
E F
OR
C
ON
TIN
UA
TIO
N S
EE
S
HE
ET
C
-0
7-4
0
P3-3
C-07-121
HH
3-2E
,I
HH
3-
1E
,I
P3-2
C-07-121
P3-1
C-07-121
520
510
500
490
480
520
510
500
490
480
470
460
PIPELINE "C"
VAULT, TYP.
(SEE NOTE 1)
WELL CASING
VAULT, TYP.
(SEE NOTE 1)
VAULT, TYP.
WELL CASING
VAULT, TYP.
WARNING: UTILITY CROSSING
PIPELINE "A"
M
A
T
C
H
L
I
N
E
C3
C-07-108
C4
C-07-108
C6
C-07-108
VAULT, TYP.
(SEE NOTE 1)
P3-7
C-07-121
P3-4
C-07-121
HH
3-4
AE
,I
HH3-6E,I
HH3-4AE,I
HH
3-6
E,I
P4-17
C-07-122
FO
R C
ON
TIN
UA
TIO
N
SE
E S
HE
ET
C
-0
6-0
3
C-07-41
PIPELINE - PLAN AND PROFILE
PIPELINE "C3", "C4", & "C6"
STA 19+60 TO STA 25+79
NOTES:
1. VAULT DETAILS SHOWN IN AREA 4 OF THE
MECHANICAL AND STRUCTURAL DRAWINGS.
2. SEE CONDUIT AND CABLE SCHEDULES AND SINGLE
LINE DIAGRAMS ON SHEETS E-00-12 THRU E-00-20.
3. CLEANOUT LOCATIONS PROVIDE CLEANOUT PIPING
FOR ALL INJECTION, EXTRACTION, BACKWASH, AND
REMEDY-PRODUCED WATER LINES AT INDICATED
LOCATIONS (SEE DETAIL C-00-08).
4. FOR LATERALS TO REMEDIATION WELLS, SEE
DETAIL 3 ON SHEET C-07-141.
5. FOR COORDINATES TO STRUCTURES ALONG
PIPELINE OR RADIUS POINT INFORMATION, SEE
SHEETS C-07-91 AND C-07-92.
SEE NOTE 4
11
/2
7/2
01
8, 1
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8, G
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pro
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\R
C0
00
68
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in
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C\C
-C
ivil\C
-0
7-3
9 to
5
2.d
wg
, T
ab
: C
-0
7-4
1
5
JPBKLD JEFAJW04/05/13 INTERMEDIATE (60%) DESIGN0
JPBBAS JEFAJW09/08/14 PRE-FINAL (90%) DESIGN1
RAO
BWWLM RAOAJW11/18/15 FINAL DESIGN2
BWJPB RAOAJW06/16/17 ISSUED FOR BID3
4CALTRANS ENCROACHMENT PACKAGE
VJM JPBMAG
RAO
11/02/18
CP53
CP56
CP59
CP61
CP63
CP71
CP72
CP80
CP79
CP78
CP77
CP76
CP83
CP84
CP94
CP95
CP96
CP97
CP104
RP14
RP15
1
C-07-112
CP54
CP55
CP57
CP58
CP60
CP62
CP64
3
C-07-112
6
C-00-08
CP67
CP68
CP65
CP66
CP69
CP70
CP73
CP75
CP74
6
C-00-08
13
C-07-119
CP81
CP82
1
C-07-112
CP89
CP90
CP86
CP85
CP87
CP88
CP91
CP92
CP93
CP98
CP99
CP100
CP101
CP106
CP102
CP103
CP105
MAGJPB RAODMM11/16/18 ISSUED FOR CONSTRUCTION5
EXISTING UTILITY WARNING
TOPOCK GROUNDWATER REMEDIATION PROJECT
11
/2
7/2
01
8, 1
4:0
8, G
:\A
pro
je
ct\P
GE
\R
C0
00
68
9\T
OP
OC
K\C
AD
D\F
in
al R
em
ed
y\IF
C\C
-C
ivil\C
-0
7-3
9 to
5
2.d
wg
, T
ab
: C
-0
7-4
1
20+00
20+50
21+00
2
1
+
5
0
2
2
+
0
0
21+
22
2
5
+
7
0
1
0
+
0
0
2
2
+
5
0
23+00
11+
00
1
1
+
5
0
12+
00
12+50
13+00
20+
14
20+
61
2
1
+
7
3
2
2
+
5
1
1
1
+
4
0
I
R
Z
-
1
6
I
R
Z
-
1
5
I
R
Z
-
1
9
I
R
Z
-
1
7
I
R
Z
-
2
0
I
R
Z
-
2
1
2
5
+
5
0
2
5
+
0
0
2
4
+
0
0
2
3
+
5
0
2
4
+
5
0
2
4
+
6
5
2
5
+
2
9
I
R
Z
-
1
6
I
R
Z
-
1
5
I
R
Z
-
1
9
I
R
Z
-
1
7
I
R
Z
-
2
0
I
R
Z
-
2
1
20+00 21+00 22+00 23+00 24+00 25+00
MW
20
B
EN
CH
FE
NC
E A
T
23+75
26+00
IRZ-14
IRZ-15
IRZ-16
IRZ-17
IRZ-18
IRZ-20
IRZ-21
TE
E T
O P
IP
EL
IN
E A
TRENCH DEPTH
JU
NC
TIO
N P
OIN
T
TO
M
W-2
0 B
EN
CH
EXISTING GROUND
PIPELINE "C" - PLAN
(SCALE: 1" = 20')
PIPELINE "C" - PROFILE
(SCALE: 1" = 20' H; 1" = 10' V)
N
A
T
I O
N
A
L T
R
A
I L S
H
W
Y
.
HH3-1E,I
HH3-2E,I
HH3-3E,I
HH3-4E,I
HH3-5E,I
HH4-14E,I
HH4-15E,I
0 60
HORIZ: SCALE: 1"=20'
20 40
0 30
VERT: SCALE: 1"=10'
10 20
HH
4-1
4E
,I
P4-15
C-07-122
P4-16
C-07-122
HH
4-1
5E
,I
MA
TC
HL
IN
E F
OR
C
ON
TIN
UA
TIO
N S
EE
S
HE
ET
C
-0
7-4
0
HH
3-5E
,I
P3-6
C-07-121
HH
3-4E
,I
P3-5
C-07-121
MA
TC
HL
IN
E F
OR
C
ON
TIN
UA
TIO
N S
EE
S
HE
ET
C
-0
7-4
0
HH
3-1
E,I
520
510
500
490
480
520
510
500
490
480
470
460
PIPELINE "C"
VAULT, TYP.
(SEE NOTE 1)
WELL CASING
VAULT, TYP.
(SEE NOTE 1)
VAULT, TYP.
WELL CASING
VAULT, TYP.
PIPELINE "A"
C3
C-07-108
C4
C-07-108
C6B
C-07-108
VAULT, TYP.
(SEE NOTE 1)
P3-7
C-07-121
P3-4
C-07-121
HH
3-4
AE
,I
HH3-6E,I
HH3-4AE,I
HH
3-6
E,I
P4-17
C-07-122
FO
R C
ON
TIN
UA
TIO
N
SE
E S
HE
ET
C
-0
6-0
3
C-07-41
PIPELINE - PLAN AND PROFILE
PIPELINE "C3", "C4", & "C6"
STA 19+60 TO STA 25+79
NOTES:
1. VAULT DETAILS SHOWN IN AREA 4 OF THE
MECHANICAL AND STRUCTURAL DRAWINGS.
2. SEE CONDUIT AND CABLE SCHEDULES AND SINGLE
LINE DIAGRAMS ON SHEETS E-00-12 THRU E-00-20.
3. CLEANOUT LOCATIONS PROVIDE CLEANOUT PIPING
FOR ALL INJECTION, EXTRACTION, BACKWASH, AND
REMEDY-PRODUCED WATER LINES AT INDICATED
LOCATIONS (SEE DETAIL C-00-08).
4. FOR LATERALS TO REMEDIATION WELLS, SEE
DETAIL 3 ON SHEET C-07-141.
5. FOR COORDINATES TO STRUCTURES ALONG
PIPELINE OR RADIUS POINT INFORMATION, SEE
SHEETS C-07-91 AND C-07-92.
SEE NOTE 4
09
/0
4/2
01
9, 1
5:3
5, G
:\A
pro
je
ct\P
GE
\R
C0
00
68
9\T
OP
OC
K\C
AD
D\F
in
al R
em
ed
y\C
on
stru
ctio
n\C
-C
ivil\C
-0
7-3
9 to
5
2.d
wg
, T
ab
: C
-0
7-4
1
6
JPBKLD JEFAJW04/05/13 INTERMEDIATE (60%) DESIGN0
JPBBAS JEFAJW09/08/14 PRE-FINAL (90%) DESIGN1
RAO
BWWLM RAOAJW11/18/15 FINAL DESIGN2
BWJPB RAOAJW06/16/17 ISSUED FOR BID3
4CALTRANS ENCROACHMENT PACKAGE
VJM JPBMAG
RAO
11/02/18
CP53
CP56
CP59
CP61
CP63
CP71
CP72
CP80
CP79
CP78
CP77
CP76
CP83
CP84
CP94
CP95
CP96
CP97
CP104
RP14
RP15
1
C-07-112
CP54
CP55
CP57
CP58
CP60
CP62
CP64
3
C-07-112
6
C-00-08
CP67
CP68
CP65
CP66
CP69
CP70
CP73
CP75
CP74
6
C-00-08
13
C-07-119
1
C-07-112
CP86
CP85
CP87
CP88
CP93
CP98
CP101
CP106
CP102
CP103
CP105
MAGJPB RAODMM12/07/18 ISSUED FOR CONSTRUCTION5
EXISTING UTILITY WARNING
TOPOCK GROUNDWATER REMEDIATION PROJECT
09
/0
4/2
01
9, 1
5:3
5, G
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7-3
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ab
: C
-0
7-4
1
STUB OUT FOR IRZ-18
STUB OUT FOR IRZ-22
WARNING: UTILITY CROSSING
F
O
R
C
O
N
T
I
N
U
A
T
I
O
N
S
E
E
S
H
E
E
T
C
-
0
7
-
4
3
M
A
T
C
H
L
I
N
E
ENCASE CONTENTS
OF PIPELINE C6 WITH
1500 PSI CONCRETE
5 LF AT THE TOE AND
TOP OF SLOPE
P3-1
C-07-121
BLPJPB RAOVJM08/20/19 C6 REALIGNMENT6
6
C6A
C-07-108
C6C
C-07-108
12KV ELECTRICAL
VAULT PBX-T3P
ENCASE CONTENTS
OF PIPELINE C6 WITH
1500 PSI CONCRETE
5 LF AT THE TOE AND
TOP OF SLOPE
4'-0"
9
4
6
EL
EC
TR
IC
AL
T
RE
NC
H
SP
6"
TYP.
TRACER
WIRE
6"
L 6" N IRZ EX
C
2'-0"
MIN
.
L 4" N IRZ INJ
C
L 2" BW N
C
L 6" SP
C
2'-6"
2'-0"
MIN
.
6
ELE
CT
RIC
AL T
RE
NC
H
SP
TRACER
WIRE
6"
L 6" N IRZ EX
C
L 6" SP
C
5'-2"
4
ELE
CT
RIC
AL T
RE
NC
H
SP
6"
TYP.
TRACER
WIRE
68
9
6"
L 6" RB EX
C
L 6" N IRZ EX
C
2'-0
"
MIN
.
L 6" N IRZ
C
INJ
L 2" BW N
C
L 6" SP
C
14'-1"
2'-0
" M
IN
.
25
15
11
16SP SP SP
13
18
TRACER
WIRE
10
5 178
6"
ELE
CT
RIC
AL T
RE
NC
H
L 8" FW
C
L 2" BW S
C
L 3" TWB
C
L 6" RW
C
L 2" TW
C
L 8" FW
C
L 6" RB EX
C
L 6" S IRZ INJ
C
L 6" FPW
C
L 6" SP
C
L 6" SP
C
L 6" SP
C
L 4" TCS INJ
C
L 6" S IRZ
C
EX SP
SECONDARY
CONTAINMENT
10'-6"
SP
11
ELE
CT
RIC
AL T
RE
NC
H
SP4 38 6
9
6"
2'-0
"
MIN
.
L 6" N IRZ
C
L 6" UPGRAD INJ
C
L 6" N IRZ EX
C
L 6" UPGRAD BW
C
L 2" BW N
C
L 6" SP
C
L 6" SP
C
INJ
L 8" FW
C
L 8" FW
C
L 6" RB EX
C
2
TRACER
WIRE
SP SP
6
9
L 6" N IRZ
C
L 6" UPGRAD INJ
C
L 6" N IRZ EX
C
L 6" UPGRAD BW
C
L 2" BW N
C
L 6" SP
C
L 6" SP
C
INJ
12'-1"
15
1
16 SP SP SP
13
18
TRACER
WIRE
105 178
L 2" BW S
C
L 6" RW
CL 2" TW
C
L 2" FW
C
L 6" RB EX
C
L 6" S IRZ INJ
C
L 6" FPW
C
L 6" SP
C
L 6" SP
C
L 6" SP
C
L 4" TCS INJ
C
L 6" S IRZ
C
EX SP
SECONDARY
CONTAINMENT
25
L 3" TWB
C
243
TRACER
WIRE
1'
2'-0
" M
IN
.
SP(e)
23
SP(e)
21
22
1' - 6"
1'-6
" M
IN
.
20
21
2" RED DYE CLSM
OR CONCRETE
SLURRY
SP SP
6
9
L 6" N IRZ
C
L 6" UPGRAD INJ
C
L 6" N IRZ EX
C
L 6" UPGRAD BW
C
L 2" BW N
C
L 6" SP
C
L 6" SP
C
INJ
12'-1"
1'-0
" M
IN
.
15
1
16 SP SP SP
13
18
TRACER
WIRE
105 178
L 2" BW S
C
L 6" RW
CL 2" TW
C
L 2" FW
C
L 6" RB EX
C
L 6" S IRZ INJ
C
L 6" FPW
C
L 6" SP
C
L 6" SP
C
L 6" SP
C
L 4" TCS INJ
C
L 6" S IRZ
C
EX SP
SECONDARY
CONTAINMENT
25
L 3" TWB
C
243
TRACER
WIRE
1'
SP(e)
23
SP(e)
21
22
1' - 6"
1'-6
" M
IN
.
20
21
PIPEZONE AND BACKFILL
ABOVE PIPEZONE MAY BE
CLSM OR CLSM AND NATIVE
MATERIAL.THE SURFACE
FINISH WILL CONSIST OF A
COLOR THAT BLENDS IN
WITH THE FLOODPLAIN
NATURAL COLOR PALETTE.
SP SP
6
9
L 6" N IRZ
C
L 6" UPGRAD INJ
C
L 6" N IRZ EX
C
L 6" UPGRAD BW
C
L 2" BW N
C
L 6" SP
C
L 6" SP
C
INJ
12'-1"
2'-0" M
IN
.
15
1
16SP SP SP
13
18
TRACER
WIRE
10
5 178
L 2" BW S
C
L 6" RW
CL 2" TW
C
L 2" FW
C
L 6" RB EX
C
L 6" S IRZ INJ
C
L 6" FPW
C
L 6" SP
C
L 6" SP
C
L 6" SP
C
L 4" TCS INJ
C
L 6" S IRZ
C
EX SP
SECONDARY
CONTAINMENT
25
L 3" TWB
C
243
TRACER
WIRE
1'
SP(e)20
22
1' - 6"
1'-6" M
IN
.
20
2" RED DYE CLSM
OR CONCRETE
SLURRY
SP(e)
SP2121
SP
23
C1
C-07-39
SECTION
1"=1'-0"
C2
C-07-39
SECTION
1"=1'-0"
C3
C-07-39, -40,-41
SECTION
1"=1'-0"
C4
C-07-41
SECTION
1"=1'-0"
C6A
C-07-41
SECTION
1"=1'-0"
TOPOCK GROUNDWATER REMEDIATION PROJECT
- DRAFT -
NOT FOR
CONSTRUCTION
09
/0
6/2
01
9, 1
7:4
1, G
:\A
pro
je
ct\P
GE
\R
C0
00
68
9\T
OP
OC
K\C
AD
D\F
in
al R
em
ed
y\C
on
stru
ctio
n\C
-C
ivil\C
-0
7-1
08
to
1
22
.d
wg
, T
ab
: C
-0
7-1
08
Sheet: 1
File: ..\Topock\BRIAN PE STAMP.pdf
Missing or invalid reference
C5
C-07-43,-44
SECTION
1"=1'-0"
BAS
6
KLD
C-07-108
TRENCH SECTIONS
WLMKLD BJWAJW8/5/15 90% RTC RESOLUTION2
JPB JEFAJW9/8/14 PRE-FINAL (90%) DESIGN1
JPB JEFAJW4/5/13 INTERMEDIATE (60%) DESIGN0
NOTES:
1. PIPE SUPPORTS AND CLEANOUTS NOT SHOWN FOR
CLARITY.
2. ALL COVERS SHALL BE TRAFFIC RATED.
3. CASING SPACERS NOT SHOWN FOR CLARITY.
4. PIPE BEDDING SHALL EXTEND TO CL OF THE
LARGEST PIPE.
5. REFER TO DETAIL 1 ON C-07-102 FOR PIPE SPACING.
RAO
BWWLM RAOAJW11/18/15 FINAL DESIGN3
BWJPB RAOAJW6/16/17 ISSUED FOR BID4
MAGJPB RAONAKISSUED FOR CONSTRUCTION5 12/07/18
PIPELINE C
PIPELINE C
PIPELINE C
PIPELINE C
PIPELINE C
BLPJPB RAOVJMC6 REALIGNMENT 6 08/20/19
6
C6B
C-07-41
SECTION
1"=1'-0"
C6C
C-07-41
SECTION
1"=1'-0"
Future Activity Allowance Determination Matrix for Work Variance Request (WVR)
Work Variance Request No. 8 Date: 10/4/19
Future Activity Allowance is an activity that is not considered in the remedy design but necessary to support the project objectives. Future Activity Allowance is a Material Deviation which is defined in the final groundwater remedy design as: Material Deviation means a change or correction required to prevent a condition that would (1) render the approved design non‐compliant with codes, regulations, and /or engineering standard of practices, (2) render planned well locations and/or constructions fail to meet the project objectives, (3) cause significant schedule delay, and/or (4) cause a significant increase in costs. (CH2M Hill, 2015)
According to the SEIR Project Description, “The inclusion of the Future Activity Allowance is not intended to account for minor adjustments (work variances) of the remedy design during construction resulting from field conditions. DTSC’s objective for the inclusion of the Future Activity Allowance is to consider the potential impacts of needing to take additional but previously unforeseen activities that were not contemplated as part of the Final Remedy Design but are activities that would improve the performance of the remedy, or are necessary to gather additional information on the remedy performance, and/or aid in the transition of the active remedy to monitored natural attenuation.” (ESA, 2017) 1. Are all components of the WVR in the approved final design as reviewed in the SEIR?
☒ Yes ☐ No 2. Are all components of the WVR staying within an infrastructure alignment in the approved final
design?
☐ Yes ☒ No
If answers to both 1 and 2 are Yes, STOP – action is not Future Activity Allowance
3. For components not in approved final design, will the WVR require new access not identified for use in the final design and create new ground disturbance beyond those anticipated in final design?
☐ Yes ☒ No
If answer is No, STOP – action is not Future Activity Allowance. If Yes, proceed… 4. For components not in approved final design and require new access or new ground disturbance,
will the ground disturbing activity be outside the 2018 SEIR project boundary?
☐ Yes ☐ No
If answer is Yes, STOP – action is subject to additional CEQA evaluation. WVR approval will be considered after DTSC completes CEQA determination. 5. For WVR requiring new access and/or new ground disturbance, but project components are in
approved final design and within the 2018 SEIR project boundary, is the variance necessitated by field conditions which are outside the control of the operator (e.g. refusal during drilling, unstable ground, existing design jeopardizes health and safety, modification to avoid archaeological resource, existing design does not conform to engineering standards, etc.)?
☐ Yes ☐ No
If answer is No or otherwise explained in Section 7 below, action is Future Activity Allowance, follow Communication Protocol for Future Activities Allowance, Exhibit 3 to the Statement of Decision and Resolution of Approval. If the answer is Yes, action is Future Activity Allowance, and DTSC will work with
Future Activity Allowance Determination Matrix WVR No. 4 Page 2 of 2 Tribes to meet the time sensitivity of the WVR. Regardless of response, because of new access and/or new ground disturbance, WVR action may be subject to Federal Consultation. Inquire with BLM to determine whether there is a need to follow Consultation during Construction protocol. 6. Does the addition of WVR cause an exceedance from infrastructure limits specified in the 2018
certified Final SEIR (Table 3‐1 for well boreholes; Table 3‐2 for pipeline trenches, electrical/ communication conduit, roadway improvements, or sizes of buildings and structures; Table 3‐4 for volume of soil disturbance and Table 3‐5 for water usage)?
☐ Yes ☐ No
If answer is Yes, STOP – action is subject to additional CEQA evaluation. WVR approval will be considered after DTSC completes a CEQA checklist to determine if there are new or substantially more significant environmental impacts than disclosed in the 2018 SEIR.
7. Other extenuating circumstances or information for FAA considerations: ☐ No
☐ Yes – provide information and/or justification
Conclusion: WVR No. 8 ☒ is not a FAA ☐ is a FAA Signature of DTSC reviewer: Date: 10/04/2019
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