DAQ-2025-001201

WES(O OPERATING, IN(.
OIL A GAS OPERATIONS
January 14,2025
Mr. Bryce Bird, Director
Division of Air Quality
Attn: Compliance Section 195 North 1950 West
P.O. Box 144820
Salt Lake City, Utah 84116
Re: NSPS OOOO -Semi-Annual Report- Period 022024
Dear Mr. Bird:
The Blue Hills Gas Plant owned by Wesco Operating, lnc. is subject to the
equipment leak standards in 40 CFR Part 60, Subpart OOOO. Subpart OOOO
requires sources subject to the provisions to submit semi-annual reports to the
Administrator in accordance with 40 CFR Part 60, Subpart Wa. Endosed is the
semi-annual report, forthe period July 2024 through December 2024, that
indudesthe required information identified under Section 60.487a of Subpart
VVa.
Please call me at [phone] or [e-mail] if you have any
questions regarding this report.
Sincerely,
REXTEwED
tnirials: @ r^,,. z'lfu f\slat
Compliance Srutrr, rF.e.\^e c/
rr,u t481{Todd Monison
Compliance Specialist
I nsi ght Environmental, I nc.
Encl.
cc: State of Utah, Division of Air Quality, Department of Environmental Quality
UTAH DFPAFITMENT OF
-._DIVISION
OF AIR OUALITY
WESCO OPERATITIG, IN(.
OIL & GAS OPENATIONS
Statement of Gertification
Wesco Operating, lnc.
Blue Hills Gas Plant
40 CFR 60 Subpart OOOO Semi-AnnualReport
Period July 2024 through December 2024
This document and all attachments were prepared under my direction or supervision in
accordance with a system desQned to assure that qualified personnel properly gather,
evaluate, and compile the information submifted herein. I certify that based on
information and belief formed after reasonable inquiry, the statements and information in
this document are true, a@unate, and complete. The reasonable inquiry on which this
certifcation is based consisted of my inquiry of the person or persons responsible for
gathering, evaluating, and compiling the informatirn submitted herein.
,5/Jk
Wesco Operating lnc.
Blue Hills Gas Plant
Semiannual LDAR Report
Reporting Period: I July,2O24 to December,2024
Process Unit:Gas Plant
Process Unit: NGL Storage
Dates of process ,niiltffiilffi
Dates of process unit shutdown: N/A
Number of valves subject to the requirements of $60,482-7a, excluding those valves designated for no
detectable emissions under the provisions of $60.482-7a(f).708
Number of pumps subject to the requirements of $60.482-2a, excluding those pumps designated for no
detectable emissions under the provisions of 550,482-2a(e) and those pumps complying with 560.482-2a(f).o
Number of compressors subject to the requirements of 550.482-3a, excluding those compressors designated
for no detectable emissions under the provisions of S60.482-3a(i) and those compressors complying with
$60.a82-3a(h).o
Number of connectors subiect to the requirements of 560.482-11a.1628
Number of pressure relief devices subject to the requirements of $60.5401(b) except for those pressure relief
devices designated for no detectable emissions under the provisions of 560.482-4a(a) and those pressure
relief devices complying with 50.482-4(c).19
Number of valves subject to the requirements of $60.t182-7a, excluding those valves designated for no
detectable emissions under the provisions of $60.482-7a(f).202
Number of pumps subject to the requirements of 560.482-2a, excluding those pumps designated for no
detectable emissions under the provisions of $60.482-2a(e) and those pumps complying with 560.482-Za(fl.0
Number of compressors subject to the requirements of $50.482-3a, excluding those compressors designated
for no detectable emissions under the provisions of $60.482-3a(i) and those compressors complying with
460,482-3a(h).o
Number of connectors subject to the requirements of S60.482-11a.761
Number of pressure relief devices subject to the requirements of $60.5401(b) except for those pressure relief
devices designated for no detectable emissions under the provisions of 560.482-4a(a) and those pressure
relief devices complvine with 60.482-4(c).8
Period: I July,2O24 to December,2024
Process Unit:
Reporting Period:
Gas Plant
Julv,2024
NUmDer oT vatves ror wnlcn teaKs were oereceo a5 oescnoeo rn
i60.482-7a(b) or 960.483-2a 0
ltutiluEt ut vdtvts> tut wItLI tgdtr> wErE ltut I EPdil
requ ired in S60.482-7a(dX1)0
Number of pumps for which leaks were detected as described in
560.a82-2a(b), (dX4Xii)(A) or (B), or (d)(sXiii)0
Number of pumps for which leaks were not repaired as
required in 96o.482-2a(c)(1) and (dX6)0
Number of connectors for which leaks were detected as
described in 960.482-11a(b)0
Number of connectors for which leaks were not
repaired as required in 560.482-11a(d)0
Number of pressure relief devices for which leaks were
detected as required in 560.5401(b)(2)0
Number of pressure relief devices for which leaks
were not repaired as required in 560.5401(bX3)0
Page 1 of4
Wesco Operating lnc.
Blue Hills Gas Plant
Semiannual LDAR Report
Process Unit: Gas Plant
Reporting Period: TC@62-
Process Unit:
Reporting Period;
Gas Plant
September, 2024
Process Unit:
Reporting Period:
Gas Plant
October,2024
Process Unit: Gas Plant
Reporting Period: Nffi;5er, 2024
Process Unit:
Reporting Period:
Gas Plant
December,2024
!umber of valves for which leaks were detected as described in
i60.a82-7a(b) or 560.483-2a 0
tlumber of valves for which leaks were not repaired as
'equired in 560.a82-7a(dX1)0
\umber of pumps for which leaks were detected as described in
i60.482-2a(b), (dX4)(ii)(A) or (B), or (d)(5Xiii)0
{umber of pumps for which leaks were not repaired as
'equired in 960.482-2a(c)(1) and (d)(6)0
!umber of connectors for which leaks were detected as
lescribed in 560.482-11a(b)0
tlumber of connectors for which leaks were not
'epaired as required in 960.482-11a(d)0
\'lumber of pressure relief devices for which leaks were
detected as required in 960.5a01(b)(2)o
tlumber of pressure relief devices for which leaks
were not repaired as required in 560.5401(b)(3)0
Number of valves for which leaks were detected as described in
560.482-7a(b) or 960.483-2a 1
!umber of valves for which leaks were not repaired as
'equired in $60.a82-7a(dX1)0
Number of pumps for which leaks were detected as described in
960.a82-2a(b), (dX4Xii)(A) or (B), or (dXsXiii)o
\lumber of pumps for which leaks were not repaired as
'equired in 560.482-2a(cX1) and (d)(6)0
Number of connectors for which leaks were detected as
described in 560.482-11a(b)3
\lumber of connectors for which leaks were not
'epaired as required in 960.482-11a(d)0
Number of pressure relief devices for which leaks were
detected as required in 960.5401(bX2)0
tlumber of pressure relief devices for which leaks
were not repaired as required in 960.5401(b)(3)0
Number of valves for which leaks were detected as described in
560.482-7a(b) or 960.483-2a 0
Number ot valves for which leaks were not repaired as
required in 960.482-7a(dX1)0
Number of pumps forwhich leaks were detected as described in
960.482-2a(b), (d)(4XiiXA) or (B), or (d)(s)(iii)0
Nurnber of pumps forwhich leaks were not repaired as
required in 560.482-2a(cX1) and (d)(6I o
tlumber of connectors for which leaks were detected as
lescribed in 960.482-11a(b)0
Number of connectors for which leaks were not
repaired as required in 560.482-11a(d)0
\lumber of pressure relief devices for which leaks were
detected as required in 560.5a01(bX2)0
Number of pressure relief devices for which leaks
were not repaired as required in 960.5a01(b)(3)o
\lumber oI valves tor wnrcn leaKs were oetecleo as oescnDeo rn
i60.482-7a(b) or 56o.483-2a 0
NUmDer oT vatves Tor wntcn teaKs were nor reparreo as
required in 560.482-7a(dXl)o
!umber ot pumps lor wnrcn leaks were oetefieo as oescnoeo ln
i6o.a82-2a(b), (d)(4)(iiXA) or (B), or (dXs)(iii)0
NUmDer oT pumps Tor wntcn reaKs were not reparreo as
required in 960.482-2a(c)(1) and (d)(6)o
tlumber of connectorsforwhich leaks were detected as
lescribed in 960.482-11a(b)o
Number of connectors for which leaks were not
repaired as required in 560.482-1fa(d)0
!umDer ol pressure relrel oevtces Tor wnlcn leaKs were
detected as required in 560.5401(b)(2)o
Number ot pressure reliet devices tor which leaks
were not repaired as required in $60.5401(bX3)U
{umber of valves for which leaks were detected as described in
i60.a82-7a(b) or 560.483-2a 0
Number of valves for which leaks were not repaired as
requ ired in 950.482-7a(d)(1)o
tlumber of pumps for which leaks were detected as described in
i60.482-2a(b), (dX4)(ii)(A) or (B), or (d)(s)(iii)0
Number of pumps for which leaks were not repaired as
required in 560.482-2a(c)(1) and (dX6)0
[umber of connectors for which leaks were detected as
lescribed in 960.482-11a(b)0
Number of connectors for which leaks were not
repaired as required in $60.482-11a(d)0
\,lumber of pressure relief devices for which leaks were
detected as required in $60.5401(b)(2)0
Number of pressure relief devices for which leaks
were not repaired as required in $60.5a01(b)(3)0
Page 2 of 4
Wesco Operating lnc.
Blue Hills Gas Plant
Semiannual LDAR Report
Period:July,2024 to December, 2024
Process Unit: NGL Storage
Reporting Period: lu9,zA?r4
Process Unit: NGL Storage
Reporting Period: August, 2024
Process Unit:
Reporting Period:
NGL Storage
September, 2024
Process Unit:NGL Storage
October. 2024
Process Unit:
Reporting Period:
NGL Storage
Number of valves for which leaks were detected as described in
960.482-7a(b) or 960.483-2a 0
Number of valves for which leaks were not repaired as
requ ired in 560.a82-7a(dX1)0
tlumber of pumps for which leaks were detected as described in
i6o.a82-2a(b), (d)(4Xii}(A) or (B), or (dxs)(iii)0
Number of pumps for which leaks were not repaired as
required in 960.482-2a(cXr) and (dX0)o
Number of connectors for which leaks were detected as
described in 560.482-11a(b)o
Number of connectors for which leaks were nol
repaired as required in 560.482-11a(d)0
tlumber of pressure relief devices for which leaks were
detected as required in 960.5401(bX2)0
Number of pressure relief devices for which leaks
were not repaired as required in $60.5401(b)(3)0
tlumber of valves for which leaks were detected as described in
i50.a82-7a(b) or 960.483-2a o
Number of valves for which leaks were not repaired as
required in 560.482-7a(dX1)o
tlumber of pumps for which leaks were detected as described in
i6o.as2-2a(b), (dX4XiiXA) or (B), or (d)(s)(iii)0
Number of pumps for which leaks were not repaired as
required in 560.482-2a(c)(1) and (dX6)0
!umber of connectors for which leaks were detected as
lescribed in 960.482-1 la(b)o
tlumber of connectors for which leaks were not
'epaired as required in 960,482-11a(d)o
\umber of pressure relief devices for which leaks were
detected as required in 960.5401(bX2)0
tlumber of pressure relief devices for which leaks
were not repaired as required in E€O.5401(bX3)0
Number of valves for which leaks were detected as described in
560.a82-7a(b) or 960.483-2a 0
[umber of valves for which leala were not repaired as
.equired in 560.482-7a(dX1)o
Number of pumps for which leaks were detected as described ir
560.482-2a(b), (d)(4Xii)(A) or (B), or (dXs)(iii)U
tlumber of pumps forwhich leaks were not repaired as
'equired in 560.482-2a(cXr) and (dX0)0
Number of connectors for which leaks were detected as
described in 960.482-11a(b)0
\umber of connectors for which leaks were not
'epaired as required in $60.482-11a(d)0
Number of pressure relief devices for which leaks were
detected as required in 560.5a01(b)(2)0
Vumber of pressure relief devices for which leaks
were not repaired as required in S6o.54O1(bX3)0
Number of valves for which leaks were detected as described in
560.482-7a(b) or 960.483-2a
of valves for which leaks were not repaired as
required in 960.a82-7a(dX1)
Number of pumps for which leaks were detected as described i
$60.a82-2a(b), (dX4XiiXA) or (B), or (d}(sXiii)
of pumps for which leaks were not repaired as
ired in 960.482-2a(cX1) and (
Number of connectors for which leaks were detected as
described in 560.482-1 1a(b)
of connectors for which leaks were not
epaired as required in 960.482-11a(d)
Number of pressure relief devices for which leaks were
detected as required in 960.5a01(b)(2)
Number of pressure relief devices for wh ich leaks
were not repaired as required in $60.5a01(b)(3)
November,2O24
Page 3 of4
Wesco Operating lnc.
Blue Hills Gas Plant
Semiannual LDAR Report
Process Unit:NGL Storage
ber
N u mber of va lves for wh ich leaks were detected as described in
550.482-7a(b) or 560.483-2a o
tlumber of valves for which leaks were not repaired as
'equired in 960.a82-7a(dX1)0
Number of pumps for which leaks were detected as described in
i5o.a82-2a(b), (dX4Xii)(A) or (B), or (dXsXiii)0
tlumber of pumps forwhich leaks were not repaired as
'equired in 960.482-2a(cX1) and (dX6)0
,lumber of connectors for which leaks were detected as
lescribed in 560.a82-11a(b)0
Number of connectors for which leaks were not
repaired as required in 960.482-11a(d)0
tlumber of pressure relief devices for which leaks were
detected as required in 960.5401(b)(2)0
Number of pressure relief devices forwhich leal<s
were not repaired as required in 560.5401(bX3)0
Period: Decem 2U24
{umber of valves for which leaks were detected as described in
i60.a82-7a(b) or S60.483-2a 0
Numberof valvesforwhich leakswere not repaired as
required in 56O.482-7a(dX1)0
rlumber of pumps for which leaks were detected as described in
i60.482-2a(b), (d)(aXii)(A) or (B), or (d)(s)(iii)0
\,lumber of pumps f or which Ieaks were not repaired as
'equired in 560.a82-2a(c)(1) and (d)(6)0
tlumber of connectors for which leaks were detected as
lescribed in 960.482-11a(b)o
Number of connectors for which leaks were not
repaired as required in 560.482-11a(d)o
{umber of pressure relief devices for which leaks were
detected as required in $00.5aO1(b)(2)0
Number of pressure relief devices for which leaks
were not repaired as required in 96O.5a01(b)(3)0
Page 4 of 4
l:,e t'', r ll n r I I' I i fr:-rr i"l i:; Ir.(; { i:{ f. j ;* F} !"i i
Report Parameters
Regulation: EPA60-OOOO
Comp. Group: All Compliance Groups
Unit: GAS PLANT
Connectors lncluded
Pressure Relief Devices lncluded
Report Date: th3n025
ReportingPeriod'.71112O24 - 12131/2024
5rvBfrrp?E
I
Month
Active
Count
M21
Leaks
Late
Repairs Delayed Added Deleted
COMPR
CONECT
PUMP
RELIEF
VALVE
JULY
AUGUST
SEPTEMBER
OCTOBER
NOVEMBER
DECEMBER
JULY
AUGUST
SEPTEMBER
OCTOBER
NOVEMBER
DECEMBER
JULY
AUGUST
SEPTEMBER
OCTOBER
NOVEMBER
DECEMBER
JU tY
AUGUST
SEPTEMBER
OCTOBER
NOVEMBER
DECEMBER
JU LY
AUGUST
SEPTEMBER
OCTOBER
NOVEMBER
DECEMBER
0
0
0
0
0
0
1641
1640
1640
1 628
1628
1628
709
709
709
708
708
708
4
4
4
4
4
4
39
39
39
39
39
39
0
0
n
0
0
0
0
0
3
0
0
0
0
0
0
0
0
0
n
0
n
0
0
0
0
n
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
o
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
o
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
I
0
12
0
0
0
0
0
o
0
0
0
0
0
0
0
0
0
n
0
1
0
0
0
0
0
0
0
0
o
0
0
1
0
0
0
0
0
0
0
0
0
.l'his roport produced using Skvllridgc LDAIi
Last nrodilied : I | /10/2020
Page I ol2
Senti-ArrrruaI for NSPS (Rt\jSPS)
Report Parameters
Regulation: E PA6O-OOOO
Comp. Group: All Compliance Groups
Unit: GAS PLANT
Connectors lncluded
Pressure Relief Devices lncluded
.[*-
SKYBRID6E
Report Date: 111312025
Reporting Period: 71112024 - 1213112024
Unit: GAS PLANT
Active M21 Late
Month Count Leaks Repairs Delayed Added Deleted
{00014
'I-his report produced using SkyBridge LI)AR
Last nr<rdified : I l/ lO/2020
Page 2 ol 2
ii:) la', ..i Il It r i, i i i()t I i .'l P Sl i,:i f'j -q [1 ;r ]
Report Parameters
Regulation: EPA6O-OOOO
Comp. Group: All Compliance Groups
Unit: NGL STORAGE
Connectors lncluded
Pressure Relief Devices lncluded
.q*-
5rcYBRID6E
Report Date: 1113D025
Reporting Period. 71112024 - 1213112024
FTitl-hffiffincei vatt!. trvLL.---*-
Month
Active
Count
M21
Leaks
Late
Repairs Delayed Added Deleted
COMPR
JULY
AUGUST
SEPTEMBER
OCTOBER
NOVEMBER
DECEMBER
JULY
AUGUST
SEPTEMBER
OCTOBER
NOVEMBER
DECEMBER
JULY
AUGUST
SEPTEMBER
OCTOBER
NOVEMBER
DECEMBER
JULY
AUGUST
SEPTEMBER
OCTOBER
NOVEMBER
DECEMBER
JULY
AUGUST
SEPTEMBER
OCTOBER
NOVEMBER
DECEMBER
0
0
0
0
0
n
761
761
761
761
761
761
3
3
3
3
3
?
14
14
14
14
14
14
202
202
202
202
202
202
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
CONECT
0
0
0
0
0
0
0
0
n
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
PUMP
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
RELIEF
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
VALVE
0
0
0
0
0
0
0
0
0
0
n
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
This report produced using Sk-vBridge l.DAIt
Last moditled I I /1012020
Page 1 of 2
Serrr r-Anrtt lit I fc,i' NSPS ( RIJ SP{ii
Report Parameters
Regulation: EPA60-OOOO
Comp. Group: All Compliance Groups
Unit: NGL STORAGE
Connectors lncluded
Pressure Relief Devices lncluded
n--
5TYBRID6E
Report Date: 111312025
Reporting Period. 711/2024 - 12/3112024
Unit: NGL STORAGE
Active M21 Late
Month Count Leaks Repairs Delayed Added Deleted
00000
'l'his report produced using SkyBridge I,DAR
I-ast nrodified : I ll 10/2020
Page 2 ol 2
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WESCO OPERATING, INC.
OIL A GAS OPERATIONS
U'Lrri' 1 DI- l']AR-I MFN f OF
E NVi iloii r\4i: NTAL Q IJA.L I TY
January 14,2025
Ms. Cynthia Reynolds
Air and Toxics Technical Enforcement Program
Office of Enforcement
Compliance and Environmental Justice
Mail Code SENF-AT
1595 V[nkoop Street
Denver, CO 80202-1129
DIVISION OF AIR QUALITY
Re: NSPS OOOO - Semi-Annual Report - Period 022024
Dear Ms. Reynolds.
The Blue Hills Gas Plant owned by Wesco Operating, lnc. is subject to the
equipment leak standards in 40 CFR Part 60, Subpart OOOO. Subpart OOOO
requires sour@s subject to the provisions to submit semi-annual reports to the
Administrator in accordance with 40 CFR Part 60, Subpart Wa. Enclosed is the
semi-annual report, for the period July 2024 through December 2024, that indudes
the required information identified under Section 60.487a of Subpart VVa.
Please call me at [phone] or [e-mail] if you have any
questions regarding this report.
Sincerely,
Todd Monison
Compliance Specialist
lnsight EnMronmental, lnc.
End.
cc: State of Utah, Division of Air Quality,Department of Environmental Quality
WEs(O OPERATING, INC.
OIL & GAS OPERATIONS
Statement of Gertification
Wesco Operating, lnc.
Blue Hills Gas Plant
40 CFR 60 Subpart OOOO Semi-Annual Report
Period July 2024 through December 2024
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,
evaluate, and compile the information submitted herein. I certify that based on
information and belief formed after reasonable inquiry, the statements and information in
this document are true, accurate, and complete. The reasonable inquiry on which this
certification is based consisted of my inquiry of the person or persons responsible for
gathering, evaluating, and compiling the information submitted herein.
/.'
, Jefi Mller, Pbri Manager
Btp Hils @s Plant
Wesco Operating lnc.
Blue Hills Gas Plant
Semiannual LDAR Report
Period:,2024 to December, 2024
Process Unit:Gas Plant
NGL Storage
Dates of process unit shutdown: N/A
Dates of process unit shutdown:
Number of valves subject to the requirements of $60.482-7a, excluding those valves designated for no
emissions under the provisions of $60.482-7a(f).
Number of pumps subject to the requirements of 960.482-2a, excluding those pumps designated for no
emissions under the provisions of $60.482-2a(e) and those pumps complying with $50.482-2a(f).
of compressors subject to the requirements of 560.482-3a, excluding those compressors designated
no detectable emissions under the provisions of 560.482-3a(i) and those compressors complying with
of connectors to the requirements of 560.482-11a.
mber of pressure relief devices subject to the requirements of 550.5401(b) except for those pressure relief
designated for no detectable emissions under the provisions of 560.482-4a(a) and those pressure
ief devices complving with 50.482-4(c).
Number of valves subject to the requirements of 560.482-7a, excluding those valves designated for no
emissions under the provisions of $50.482-7a(f).
Number of pumps subject to the requirements of $60.482-2a, excluding those pumps designated for no
tectable emissions under the provisions of $60.482-2a(e) and those with 560.482-2a(fl.
Number of compressors subject to the requirements of $50.482-3a, excluding those compressors designated
no detectable emissions under the provisions of $60.482-3a(i) and those compressors complying with
Number of connectors to the requirements of 560.482-1la.
Number of pressure relief devices subject to the requirements of 560.5zt01(b) except for those pressure relief
devices designated for no detectable emissions under the provisions of S60.482-4a(a) and those pressure
relief devices complying with 60.482-4(
Period: I Julv,2o24 to December.2024
Process Unit:
Reporting Period:
Gas Plant
Julv,2024
{umber ot valves tor whrch leaks were deteded as descnbeo ln
i50.482-7a(b) or 560.483-2a 0
IUmoer oT vatves Tor wnrcn teaKs were nor repatreo as
'equ ired in $60.a82-7a(d)(1)0
rlumber of pumps for which leaks were detected as described in
i6o.482-2a(b), (dX4XiiXA) or (B), or (dXs)(iii)0
tlumber of pumps for which leaks were not repaired as
'equired in 96O.tB2-2a(cXr) and (dX6)0
tlumber of connectors for which leaks were detected as
lescribed in 960.482-1la(b)0
{umber of connectors for which leaks were not
'epaired as required in 96O.482-11a{d)o
tlumber of pressure relief devices for which leaks were
detected as required in 960.5401(bX2)0
tlumber of pressure relief devices for which leaks
were not repaired as required in 960.5a01(bX3)o
Page 1 of4
tlumber of valves for which leaks were detected as described in
i60.482-7a(b) or S60.483-2a 0
\,lumber of valves for which leaks were not repaired as
'equired in 560.a82-7a(d)(1)o
tlumber of pumps for which leaks were detected as described in
i5o.a82-2a(b), (d)(4xii)(A) or (B), or (dxs)(iii)0
Number of pumps for which leaks were not repaired as
required in 960.482-2a(c)(r) and (dX0)0
Number of connectom for which leaks were detected as
described in 560.482-11a(b)o
Number of connectors for which leaks were not
repaired as required in 960.482-11a(d)0
tlumber of pressure relief devices for which leaks were
detected as required in 560.5a01(bX2)0
Number of pressure relief devices for which leaks
were not repaired as required in 560.5401(b)(3)0
Process Unit:
Reporting Period:
Gas Plant
Process Unit: Gas Plant
Reporting Period: Tuguilb24-
Wesco Operating lnc.
Blue Hills Gas Plant
Semiannual LDAR Report
September,2024
Process Unit:
Reporting Period:
Gas Plant
Oclober,2024
Process Unit:
Reporting Period:
Gas Plant
ffiCm56T6'14
Process Unit:
Reporting Period:
Gas Plant
oicembe-r,2024-
,lumber of valves for which leaks were detected as described in
i60.a82-7a (b) or 96O.483-2a 1
Number of valves for which leaks were not repaired as
required in 560.a82-7a(dX1)0
Number of pumps forwhich leaks were detected as described in
i60.482-2a(b), (dX4Xii)(A) or (B), or (d)(sxiii)o
Number of pumps for which leak were not repaired as
required in 96o.482-2a(c)(1) and (dX6)0
rlumber of con nectors for which leaks were detected as
lescribed in 960.482-11a(b)3
Number of connectors for which leaks were nol
repaired as required in 560.482-11a(d)0
rlumber of pressure relief devices for which leaks were
detected as required in $60.5a01(bX2)o
tlumber of pressure relief devices for which leaks
were not repaired as required in $60.5a01(b)(3)0
tlumber of valves for which leaks were detected as described in
i60.a82-7a(b) or 960.483-2a o
tlumber of valves for which leaks were not repaired as
'equlred in 560.482-7a(dX1)0
tlumber of pumps for which leaks were detected as described in
i6o.482-2a(b), (dX4Xii)(A) or (B), or (dXsXiii)o
tlumber of pumps for which leaks were not repaired as
'equired in S6o.482-2a(cXr) and (dXo)0
tlumber of connectors for which leaks were detected as
lescribed in 960.482-11a(b)o
Vumber of connectors for which leaks were not
'epaired as required in $60.482-1la(d)0
!umber of pressure relief devices for which leaks were
detected as required in 960.5a01(b)(2)0
[umber of pressure relief devices for which leaks
were not repaired as required in 960.5a01(bX3)0
\umber ot valves ior whtch leal(s were oeteceo as oescnDeo ln
i60.482-7a(b) or S60.483-2a 0
NUmDer oT vatves Tor wntcn teaKs were nor repatreo as
required in 560.a82-7a(d)(1)0
{umber ot pumps tor wnlch leaKs were oelecleo as oescnDeo ln
160.482-2a(b), (dX4Xii)(A) or (B), or (dXsXiii)0
\umDer oT pumps ror wnrcn leaxs were not reparreo as
required in $6O.482-2a(cX1) and (dXe)o
\,lumber of con nectors for which leaks were detected as
lescribed in 560.482-11a(b)0
Number of connectors for which leaks were not
repaired as required in 960.a82-11a(d)o
Vumber of pressure reliet devices for which leaks were
detected as required in 560.5a01(bX2)o
\umber ot pressure reliet devices tor whrch lealG
were not repaired as required in 560.5a01(b)(3)o
Number of valves for which leaks were detected as described in
S60.a82-7a(b) or 560.483-2a o
tlumber of valves for which leaks were not repaired as
'equired in 560.482-7a(dX1)o
\,lumber of pumps for which leaks were detected as described in
i60.482-2a(b), (d)(4XiiXA) or (B), or (dXsXiii)0
tlumber of pumps for which leaks were not repaired as
'equired in 960.482-2a(cX1) and (dX6)0
Number of connectors for which leaks were detected as
described in 960.482-11a(b)o
ilumber of connectors for which leaks were not
'epaired as required in 560.182-11a(d)o
Number of pressure relief devices for which leaks were
detected as required in $60.5401(b)(2)0
tlumber of pressure relief devices for which leaks
^rere
not repaired as required in 960.5401(bX3)0
Page2 of 4
Wesco Operating lnc.
Blue Hills Gas Plant
Semiannual LDAR Report
Period:,2024 to December. 2024
Process Unit: NGL Stora8e
Reporting Period: July,2024
Process Unit: NGL Storage
Reporting Period: Autust, 2024
Process Unit: NGL Storage
Reporting Period: September, 2O24
Process Unit: NGL Storage
Reporting Period: October, 2024
Process Unit: NGL Storate
Number of valvesforwhich leaks were detected as described in
160.482-7a(b) or S60.483-2a o
Numberof valvesforwhich leakswere not repaired as
required in $60.a82-7a(dX1)0
,,lumber of pumps for which leaks were detected as described in
i6o.482-2a(b), (d)(4XiiXA) or (B), or (dXs)(iii)0
Numberof pumpsforwhich leakswere not repaired as
required in 960.t182-2a(cXr) and (d)(0)o
rlumber of connectors for which lea ks were detected as
lescribed in 560.482-11a(b)0
Number of connectors for which leaks were not
repaired as required in 560.482-11a(d)0
rlumber of pressure relief devices for which leaks were
detected as required in 160.5a01(bX2)0
tlumber of pressure relief devices for which leaks
were not repaired as required in 96O.5tlO1(bX3)0
tlumber of valves for which leaks were detected as described in
i60.482-7a(b) or 960.483-2a 0
tlu mber of valves for which lea ks were not repaired as
'equ ired in 56O.a82-7a(d)(1)0
rlumber of pumps forwhich leaks were detected as described in
i60.482-2a(b), (dX4Xii)(A) or (B), or (dXsXiii)0
tlumber of pumps for which leaks were not repaired as
'equired in 960.482-2a(c)(1) and (dX6)0
tlumber of connectors for which leaks were detected as
lescribed in 560.482-11a(b)o
tlumber of connectors for which leaks were not
'epaired as required in 56O.482-11a(d)o
Vumber of pressure relief devices for which leaks were
detected as required in 960.5401(bX2)0
tlumber of pressure relief devices for which leaks
were not repaired as required in 560.5401(bX3)o
{umber of valves for which leaks were detected as described in
i60.482-7a(b) or S60.483-2a o
rlumber of valves for which leaks were not repaired as
'equired in 960.482-7a(dX1)o
Number of pumps for which leaks were detected as described in
960.482-2a(b), (dX4Xii)(A) or (B), or (d)(s[iii)0
tlumber of pumps for which leaks were not repaired as
'equired in 960.482-2a(cXr) and (dX6)0
Number of connectors for which leaks were detected as
described in 560.482-11a(b)o
{umber of connectors for which leaks were not
'epaired as required in 56o.a82-11a(d)0
Number of pressure relief devices for which leaks were
detected as required in 560.5a01(bX2)0
{umber of pressure relief devices for which leaks
were not repaired as required in S6o.5401(b)(3)0
Number of valves for which leaks were detected as described in
960.482-7a(b) or 960.483-2a o
tlumber of valves for which leaks were not repaired as
'equired in 960.482-7a(dX1)0
tlumber of pumps forwhich leaks were detected as described in
i6o.a82-2a(b), (dX4XiiXA) or (B), or (dXsXiii)o
tlumber of pumps for which leaks were not repaired as
'equired in 56o.482-2a(cXr) and (d)(6)0
rlumber of connectors for which leaks were detected as
lescribed in 560.a82-11a(b)0
tlumber of connectors for which leaks were not
'epaired as required in 950.482-11a(d)0
tlumber of pressure relief devices for which leaks were
detected as required in 960.5401(bX2)0
!umber of pressure relief devices for which leaks
were not repaired as required in $60.5401(b)(3)0
Reporting Period: November, 2024
Page 3 of4
Wesco Operating lnc.
Blue Hills Gas Plant
Semiannual LDAR Report
tlumber of valves for which leaks were detected as described in
i60.482-7a(b) or 960.483-2a 0
\umber of valves for which leaks were not repaired as
'equired in 560.a82-7a(dX1)0
Number of pumps for which leaks were detected as described in
560.482-2a(b), (dX4Xii)(A) or (B), or (dXsXiii)0
Number of pumps for which leaks were not repaired as
required in 960.482-2a(c)(r) and (dX6)0
Number of connectors for which leaks were detected as
described in 560.482-11a(b)o
Number of connectors for which leaks were not
repaired as required in 560.482-11a(d)o
Number of pressure relief devices for which leaks were
detected as required in 960.5a01(b)(2)o
Number of pressure relief devices for which leaks
were not repaired as required in 560.5a01(b)(3)o
Process Unit:NGL Storage
December ztJ24Period:
Number of valves for which leaks were detected as described in
960.482-7a(b) or 96o.483-2a 0
tlumber of valves for wh ich lea ks were not repaired as
'equired in 550.482-7a(dX1)0
Number of pumps for which leaks were detected as described in
960.482-2a(b), (dX4)(iiXA) or (B), or (d)(s)(iii)o
{umber of pumps for which leaks were not repaired as
equired in 960.a82-2a(c)(1) and (d){6)o
Nu mber of connectors for which leaks were detected as
described in 560.482-11a(b)0
tlumber of connectors for which leaks were not
'epaired as required in $60.482-11a(d)0
Number of pressure relief devices for which leaks were
detected as required in 960.5401(bX2)0
tlumber of pressure relief devices for which leaks
were not repaired as required in $60.5401(b)(3)0
Page 4 of 4
Serrri Artirua l lor NSPS iRlJi"iPS)
Report Parameters
Regulation: EPA6&OOOO
Comp. Group: All Compliance Groups
Unit: GAS PLANT
Connectors lncluded
Pressure Relief Devices lncluded
-[--SKYBRID6E
Report Dale: 111312025
Reporting Period: 7 11 12024 _ 12t31t2024
I unit: cAS PLANT I
Month
Active
Count
M21 LateLeaks Repairs Delayed Added Deleted
COMPR
CONECT
PUMP
RELIEF
VALVE
JULY
AUGUST
SEPTEMBER
OCTOBER
NOVEMBER
DECEMBER
JU LY
AUGUST
SEPTEMBER
OCTOBER
NOVEMBER
DECEMBER
JU LY
AUGUST
SEPTEMBER
OCTOBER
NOVEMBER
DECEMBER
JULY
AUGUST
SEPTEMBER
OCTOBER
NOVEMBER
OECEMBER
JULY
AUGUST
SEPTEMBER
OCTOBER
NOVEMBER
DECEMBER
0
0
0
0
0
0
1641
1640
1640
1628
1628
1628
4
4
4
4
4
4
39
39
39
39
39
39
709
709
709
708
708
708
0
0
3
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
n
0
0
0
0
0
o
0
o
0
0
0
0
0
o
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
't2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
o
This report produced using SkvBridge LDAR
Last modified I I I lOl2O2O
Page 1 of2
Sefi-.i Annuat for l.lsps {RNSPS} i ReportDate: 111312O25
::::.T"?:IffiT ,h
Comp. Group: All Compliance GrouPs
Unit: GAS PLANT
Connectors lncluded
Pressure Refief Devices lncluded Reporting Period: 711t2O24 - 1213112024
Unit: GAS PLANT
Active M21 Late
Month Count Leaks Repairs Delayed Added tleleted
400014
This report produced using SkyBridge LDAR
Last modified : lll10/2020
Page 2 ot 2
Se r."rr Annrifil tr:r NSFS (RNSPS)
Report Parameters
Regulation: EPA6&,OOOO
Comp. Group: All Compliance Groups
Unit: NGL STORAGE
Connectors lncluded
Pressure Relief Devices lncluded
-[--5TYBRID6E
Report Dale: 1113f2O25
Reporting Period: 71112024 - 12131/2024
Unit:NGL STORAGE
Month
Active
Count
M21
Leaks
Late
Repairs Delayed Added Deleted
COMPR
CONECT
PUMP
RELIEF
VALVE
JULY
AUGUST
SEPTEMBER
OCTOBER
NOVEMBER
DECEMBER
JULY
AUGUST
SEPTEMBER
OCTOBER
NOVEMBER
DECEMBER
JULY
AUGUST
SEPTEMBER
OCTOBER
NOVEMBER
DECEMBER
JU LY
AUGUST
SEPTEMBER
OCTOBER
NOVEMBER
DECEMBER
JULY
AUGUST
SEPTEMBER
OCTOBER
NOVEMBER
DECEMBER
0
0
0
0
0
0
761
761
761
761
761
761
3
3
3
3
3
3
14
'14
14
14
14
14
202
202
202
202
202
202
0
0
0
0
0
o
0
0
0
0
0
0
0
0
0
0
0
o
0
0
0
0
0
0
0
0
0
0
0
0
0
0
n
0
0
0
0
0
0
0
0
0
0
0
0
0
0
o
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
o
o
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
o
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
o
0
0
0
0
0
0
This report produced using SkyBridge LDAR
Last rnodified . llll0l202}
Page 1 ol2
Sr,nri "Anriua ! for i',lStlS (RNSPSi
Report Parameters
Regulation: E PA60-OOOO
Comp. Group: All Compliance GrouPs
Unit: NGL STORAGE
Connectors lncluded
Pressure Relief Devices lncluded
J--
STYBRID6E
Report Date: 111312025
Reporting Period'. 71112024 - 12/31nO24
Unit: NGL STORAGE
Late
Repairs Delayed Added DeletedMonth
M21
Leaks
Active
Count
This report produced using SkyBridge LDAR
Last modified: 11/10/2020
Page 2 ol 2
Repair Delayed History (R323)
Report Parameters
Unil All PrGss Units
Regulation EPA6GOOOO
Chss: All Componont Clas*s
Report Date: 111412025
Area: All Areas
Tag#: All Tags
Leak opton:Reporting Perad: 711t2o24 - 1213112024
UNIT:
Tag#:Locatlon lnsp. Date
lnsp.
PPM
Date on
Delay
DOR
lnsp.
PPM Reason For Oalay
Exp. Date OateRepair Off WR
Approvsd By Date: Delay: Closed
No data tor these paEmeteE
This report produced using SkyBridge LOAR
Last Modified - 1OE22J2O21 Page I of I
ffi,_ffisTfi[q,
DlvlsloN OF AIR o'1t''"