L-2025-000, Gle Paducah Laser Enrichment Facility - Usace Id No.: LRL-2025-00040 Additional Information - Supplement to Delineation Report
| ML25195A102 | |
| Person / Time | |
|---|---|
| Site: | Global Laser Enrichment File:Global Laser Enrichment icon.png |
| Issue date: | 07/03/2025 |
| From: | Conley A Burns & McDonnell |
| To: | Knuckles M Office of Nuclear Material Safety and Safeguards, US Dept of the Army, Corps of Engineers, Louisville District |
| Shared Package | |
| ML25195A100 | List: |
| References | |
| LRL-2025-00040, REGS-PLEF-FED-LTR-1000006 | |
| Download: ML25195A102 (1) | |
Text
425 South Woods Mill Road l Chesterfield, MO 63017 l burnsmcd.com Memorandum Date July 3, 2025 To Meagan Knuckles, U.S. Army Corps of Engineers, Louisville District From Aaron Conley Subject GLE Paducah Laser Enrichment Facility - USACE ID No.: LRL-2025-00040 Additional Information - Supplement to Delineation Report
Dear Ms. Knuckles:
On Monday June 9, 2025 at 9:00 a.m., Global Laser Enrichment LLC (GLE), Burns & McDonnell Engineering Company, Inc.
(Burns & McDonnell), Boston Government Services, LLC (BGS), DeMase Technical Services, LLC (DeMase), and Bacon Farmer Workman Engineering & Testing, Inc. (BFW) had a pre-application meeting with the U.S. Army Corps of Engineers (USACE)
Louisville district to discuss the proposed GLE Paducah Laser Enrichment Facility (Project). An approved jurisdictional determination request was submitted to the USACE on December 3, 2024, and was assigned USACE ID No.: LRL-2025-00040.
To assist with the jurisdictional determination of the wetland features identified in the Wetland Delineation Report for GLE Paducah Laser Enrichment Facility-November 11, 2024, Burns & McDonnell was requested to conduct a review of the perimeter wetlands and streams that extended off the Project Area (322 acres). This review was to confirm if there was a continuous surface connection with a relatively permanent water (RPW) or its abutting wetlands to bodies that are waters of the U.S. in their own right. Upon conclusion of that review, Burns & McDonnell would provide its scientific opinion on the jurisdictional status of the onsite features for the USACE to review.
A supplemental field assessment to identify potential continuous surface connections to regulated waters was conducted by BFW on June 17, 2025. Based in part on that supplemental field assessment and a review of the initial delineation, the anticipated jurisdictional status of all the Projects wetlands and streams with supporting rationale are detailed below in Tables 1, 2, and 3. Supporting figures reflecting the jurisdictional status in the tables are provided in Attachment 1: Updated Figures. The supplemental assessment summary from BFWs site visit is included in Attachment 2: Supplemental Report.
Pond photos are provided in Attachment 3: Supplemental Photos.
Table 1: Revised Summary of Wetlands within the Survey Area Wetland Number Wetland Typea Area of Wetland Delineation in Survey Area (acre)
Anticipated Jurisdictional Status c Jurisdiction Rationale WA01b PEM 1.51 Non-jurisdictional d Depressional feature with no outlet WA01b PFO 3.51 Non-jurisdictional d Depressional feature with no outlet WA02 PFO 0.03 Non-jurisdictional Depressional feature with no outlet WA03 PFO 0.79 Non-jurisdictional d Feature outlets to a ditch along the west boundary, not abutting an RPW.
WA04 PEM 0.75 Non-jurisdictional d Fringe wetlands along pond edges. Ponds do not have any outlets or surface connections.
WA05 PEM 0.02 Non-jurisdictional Depressional feature with no outlet
2 Wetland Number Wetland Typea Area of Wetland Delineation in Survey Area (acre)
Anticipated Jurisdictional Status c Jurisdiction Rationale WA06 PFO 0.04 Non-jurisdictional Feature outlets to SA05 which is an ephemeral stream. Based on the ADP and rainfall data, the area had wetter than normal conditions and the channel was not relatively permanent.
WA10 PFO 0.07 Non-jurisdictional Depressional feature with no outlet WA11 b PFO 0.60 Jurisdictional d Feature outlets to an unnamed RPW that flows west.
WA11 b PEM 0.40 Jurisdictional d Feature outlets to an unnamed relatively permanent water that flows west offsite eventually to the Ohio River.
WA12 PEM 0.33 Non-jurisdictional d Depressional feature with no identifiable drainage features.
WA13 PFO 0.38 Non-jurisdictional d Feature outlets to a ditch drainage feature that does not have a relatively permanent flow regime.
WA14 PFO 0.03 Non-jurisdictional Depressional feature with no outlet. Greater than 10-feet from the nearest wetland.
WA15 PSS 0.16 Non-jurisdictional Directly abutting WA16 which is anticipated to be non-jurisdictional.
WA16 PFO 3.34 Non-jurisdictional d Feature outlets to an upland ditch along the north boundary with no discernable drainage features and it is not abutting an RPW.
WA17 PSS 0.26 Non-jurisdictional Depressional feature along internal roadway with no outlet; not abutting a RPW.
WA18 PFO 0.20 Non-jurisdictional Depressional feature along internal roadway with no outlet; not abutting an RPW.
WA19 PEM 0.03 Jurisdictional Abutting RPW SV06, an RPW WA20 PEM 0.08 Non-jurisdictional Depressional feature with no outlet WA21 PFO 0.01 Non-jurisdictional Depressional feature with no outlet WA22 PFO 0.02 Non-jurisdictional Depressional feature with no outlet WB01 PFO 0.04 Non-jurisdictional Depressional feature with no outlet WB02 PEM 0.09 Non-jurisdictional Depressional feature with no outlet WB03 PFO 0.19 Non-jurisdictional Feature outlets to SB01 which is an ephemeral stream. Based on the ADP and rainfall data, the area had wetter than normal conditions and the channel was not relatively permanent.
WB04 PAB 0.02 Non-jurisdictional Depressional feature with no outlet WB05 b PEM 0.02 Jurisdictional Abutting RPW SV06, an RPW WB05 b PFO 0.12 Jurisdictional Abutting RPW SV06, an RPW WB06 b PEM 0.55 Jurisdictional Abutting RPW SV06, an RPW
3 Wetland Number Wetland Typea Area of Wetland Delineation in Survey Area (acre)
Anticipated Jurisdictional Status c Jurisdiction Rationale WB06 b PFO 2.75 Jurisdictional Abutting RPW SV06, an RPW WB06 b PSS 0.42 Jurisdictional Abutting RPW SV06, an RPW WB07 PFO 4.53 Non-jurisdictional Depressional feature along internal roadway with a culvert connection to WA16; WA16 outlets to an upland ditch, not abutting an RPW.
WB08 PFO 0.12 Non-jurisdictional Depressional feature with no outlet WB09 PFO 0.12 Jurisdictional Abutting RPW SB04, an RPW WB10 PFO 0.001 Jurisdictional Abutting RPW SB04, an RPW WB11 PFO 0.19 Non-jurisdictional Feature outlets to SB06 which is an ephemeral non-RPW stream. Based on the ADP and rainfall data, the area had wetter than normal rainfall and the channel did not have flow or pools.
WV01 PFO 0.24 Non-jurisdictional Depressional feature along internal roadway with no outlet; not abutting an RPW.
WV02 PSS 0.06 Non-jurisdictional Feature outlets to SV05 which is an ephemeral non-RPW stream. Based on the ADP and rainfall data, the area had above normal rainfall and the channel did not have flow or pools.
WV03 PEM 0.24 Non-jurisdictional Feature outlets to SV01 which is an ephemeral non-RPW stream. Based on the ADP and rainfall data, the area had wetter than normal conditions and the channel did not have flow or pools.
WV04 PFO 0.25 Non-jurisdictional Depressional feature with no outlet WV05 PFO 0.08 Non-jurisdictional Depressional feature with no outlet WV06 PFO 1.66 Jurisdictional Abutting RPW SV06, an RPW WV07 PFO 0.04 Non-jurisdictional Depressional feature with no outlet WV08 PFO 0.02 Non-jurisdictional Depressional feature with no outlet Total 24.31 (a)
Symbols for wetland type: PFO = Palustrine Forested Wetland, PEM = Palustrine Emergent Wetland, PSS = Palustrine Scrub-Shrub Wetland, PAB= Palustrine Aquatic Bottom Wetland (b)
Part of a wetland complex consisting of PFO, PEM, and /or PSS wetlands (c)
The anticipated jurisdictional status is Burns & McDonnells scientific opinion. An official Jurisdictional Determination can only be provided by the USACE.
(d)
See supplemental field data in Attachment 2
4 Table 2: Revised Summary of Streams within the Survey Area Stream Numbera Stream Typeb Width of Stream Delineated at OHWM (feet)
Length of Delineated Stream in Survey Area (feet)
Anticipated Jurisdictional Status c Jurisdiction Rationale SA01 E
1 571.54 Non-jurisdictional Based on the APT and rainfall data the area had wetter than normal conditions and the channel was not relatively permanent.
SA02 E
2 291.10 Non-jurisdictional Based on the APT and rainfall data the area had wetter than normal conditions and the channel was not relatively permanent.
SA03 E
2 514.74 Non-jurisdictional Based on the APT and rainfall data the area had wetter than normal conditions and the channel was not relatively permanent.
SA04 E
1 118.14 Non-jurisdictional Feature outlets to PA03 and does not connect to other features. Based on the ADP and rainfall data the area had wetter than normal conditions and the channel was not relatively permanent.
SA05 E
1 364.27 Non-jurisdictional Based on the APT and rainfall data the area had wetter than normal conditions and the channel was not relatively permanent.
SA09 E
1 357.43 Non-jurisdictional Based on the APT and rainfall data the area had wetter than normal conditions and the channel was not relatively permanent.
SA10 E
1.5 1,024.68 Non-jurisdictional d Feature outlets to a ditch along the west boundary that lacks relatively permanent flow; not abutting an RPW.
SB01 E
1 461.89 Non-jurisdictional d Feature outlets to a ditch along the south boundary that lacks relatively permanent flow; not abutting an RPW.
SB02 E
1 64.85 Non-jurisdictional This may have been an historic channel that only carries water in higher flow events. Based on the APT and rainfall data the area had wetter than normal conditions and the channel was not relatively permanent.
5 Stream Numbera Stream Typeb Width of Stream Delineated at OHWM (feet)
Length of Delineated Stream in Survey Area (feet)
Anticipated Jurisdictional Status c Jurisdiction Rationale SB03 E
2 210.61 Non-jurisdictional Based on the APT and rainfall data the area had wetter than normal conditions and the channel was not relatively permanent.
SB04 I
4 1,240.05 Jurisdictional RPW SB05 E
0.5 185.31 Non-jurisdictional Based on the APT and rainfall data the area had wetter than normal conditions and the channel was not relatively permanent.
SB06 E
2 747.51 Non-jurisdictional Based on the APT and rainfall data the area had wetter than normal conditions and the channel was not relatively permanent.
SV01 E
1.5 290.10 Non-jurisdictional Based on the APT and rainfall data the area had wetter than normal conditions and the channel was not relatively permanent.
SV02 -
Little Bayou Creek P
4 898.33 Jurisdictional RPW SV03 E
1 188.11 Non-jurisdictional Channel follows a small dry ravine. Based on the APT and rainfall data the area had wetter than normal conditions and the channel was not relatively permanent.
SV04 I
4 362.08 Jurisdictional Relatively permanent water SV05 E
1 97.29 Non-jurisdictional Downslope drainage feature. Based on the APT and rainfall data the area had wetter than normal conditions and the channel was not relatively permanent.
SV06 I
3.5 3,209.18 Jurisdictional RPW SV07 I
1 395.58 Jurisdictional Field work assessment completed on July 17, 2024, indicated some flowing water in channel.
It is therefore considered an RPW. This feature is likely an oxbow or old channel of SV06.
Total 11,592.79 (a) Assigned by Burns & McDonnell staff during the Site Investigation; S = stream
6 (b) P = Perennial, I = Intermittent, E = Ephemeral (c) The anticipated jurisdictional status is Burns & McDonnells scientific opinion. An official Jurisdictional Determination can only be provided by the USACE.
(d) See supplemental field data in Attachment 2 Table 3: Revised Summary of Ponds within the Survey Area Pond Numbera Area of Pond in Survey Area (acre)
Anticipated Jurisdictional Statusb Jurisdiction Rationale PA01 0.05 Non-jurisdictional Depressional open water feature with no outlet. Greater than 10-feet from nearest wetland or RPW.
PA02 1.68 Non-jurisdictional c Man-made feature with no outletd. Greater than 10-feet from nearest wetland, pond, or RPW.
PA03 0.28 Non-jurisdictional PA03 does not have an outlet.
PA04 0.05 Non-jurisdictional Man-made feature with no outletd. Greater than 10-feet from nearest wetland, pond, or RPW.
PA05 1.92 Non-jurisdictional c Man-made feature with no outletd. Greater than 10-feet from nearest wetland, pond, or RPW.
PA06 0.08 Non-jurisdictional Depressional feature with no outlet. Greater than 10-feet from nearest wetland.
Total 4.06 (a)
Assigned by Burns & McDonnell staff during the Site Investigation (b)
The anticipated jurisdictional status is Burns & McDonnells scientific opinion. An official Jurisdictional Determination can only be provided by the USACE.
(c)
See supplemental field data in Attachment 2 (d)
Historic aerials show PA02, PA04, and PA05 were not on the landscape in 1975, but were present in 1983. www.historicaerials.com
7 Conclusions Burns and McDonnell is submitting this wetland delineation report supplemental memorandum to include additional information on the anticipated jurisdictional status of the wetland, stream, and pond features identified on the GLE PLEF Project Area. Based on the evaluation and supplemental field assessment, 11 wetlands, five streams, and no ponds appear to have continuous surface connectivity via RPWs to water bodies that are waters of the U.S. in their own right. It is Burns &
McDonells scientific opinion that these resources would be considered jurisdictional by the USACE. If, after reviewing this package, you have questions, comments, or require additional information please contact me at 618.231.6460 or amconley@burnsmcd.com or Vinnie Tremante at 614.453.7804 or vjtremante@burnsmcd.com.
Prepared by:
Burns & McDonnell Engineering Company, Inc.
Aaron Conley Staff Environmental Scientist Attachments: : Updated Figures : Supplemental Reports : Supplemental Photos cc:
Tim Knowles, GLE Scott Steuer, GLE Daniel Jelinek, DeMase Susannah Campbell, BFW Vinnie Tremante, Burns & McDonnell
425 South Woods Mill Road l Chesterfield, MO 63017 l burnsmcd.com ATTACHMENT 1 - UPDATED FIGURES
Anticipated Jurisdictional Determination GLE PLEF McCracken County, KY Issued: 7/2/2025 Dyke Rd Dyke Rd Dyke Rd Dyke R d
W A
0 4
WA 0
5 PA 02 PA05 W
B07 W
A 1
4 W
A 1
6 W
A 1
5 W
A 1
8 W
B 0
8 P
A 0
4 W
A 1
7 W
V 0
6 W
A 1
1 1
2 3
4 5
6 7
8 Page Number: 1 0
125 250 375 500 US Feet Jurisdictional Streams Non-Jurisdictional Streams PLEF Project Area (322 acres)
Jurisdictional Wetlands Non-Jurisdictional Wetlands NORTH
Anticipated Jurisdictional Determination GLE PLEF McCracken County, KY Issued: 7/2/2025 Bay ou Creek Bayou Cre ek Ba yo u
Cr ee k
S Acid Rd Dyke Rd Hobbs Rd Hobbs Rd Hobbs Rd S Acid Rd Dyke Rd Dyke Rd W
A 04 WA 0
5 PA0 2
PA 03 WA 06 PA0 5
W A1 2
P A
0 4
W A
1 1
S A0 4
S A
0 9
S A
0 5
1 2
3 4
5 6
7 8
Page Number: 2 0
125 250 375 500 US Feet Jurisdictional Streams Non-Jurisdictional Streams PLEF Project Area (322 acres)
Jurisdictional Wetlands Non-Jurisdictional Wetlands NORTH
Anticipated Jurisdictional Determination GLE PLEF McCracken County, KY Issued: 7/2/2025 Dyke Rd Littl e B a
yo WV01 W
V 0
3 W
V0 4
WV0 5
W V0 7
W V
0 8
W B07 W
A 1
4 WA 16 W
A 1
5 W
A 1
8 W
B 0
8 W
A 1
7 WV0 6
W B0 9
W B
10 W
B 0
6 S
V05 S
V 01 S
B 0
5 SB0 3
S V
04 S
V 0
6 SB04 1
2 3
4 5
6 7
8 Page Number: 3 0
125 250 375 500 US Feet Jurisdictional Streams Non-Jurisdictional Streams PLEF Project Area (322 acres)
Jurisdictional Wetlands Non-Jurisdictional Wetlands NORTH
Anticipated Jurisdictional Determination GLE PLEF McCracken County, KY Issued: 7/2/2025 Littl e B a
you Cr eek Kelley Rd Litt le Bayou C ree k
Crotzer Rd Kelley Rd Kelley Rd Kelley Rd Crotzer R WV01 W
V 0
3 W
V0 4
WV0 5
W V0 7
W V
0 8
WB 0
7 W
A 1
4 W
A 1
6 W
A15 W
B 0
8 W
V 06 S
V05 S
V 03 SV0 1
S B
04 S
V 04 SV 06 S
V0 2
1 2
3 4
5 6
7 8
Page Number: 4 0
125 250 375 500 US Feet Jurisdictional Streams Non-Jurisdictional Streams PLEF Project Area (322 acres)
Jurisdictional Wetlands Non-Jurisdictional Wetlands NORTH
Anticipated Jurisdictional Determination GLE PLEF McCracken County, KY Issued: 7/2/2025 Hobbs Rd Hobbs R Hobbs Rd Hobbs Rd Hobbs Rd W
A 0
2 P
A 0
1 W
A 03 WA13 W
A 1
0 W
A 2
1 P
A 0
6 W
A 2
2 S
A 0
2 S
A 09 SA03 SA10 1
2 3
4 5
6 7
8 Page Number: 5 0
125 250 375 500 US Feet Jurisdictional Streams Non-Jurisdictional Streams PLEF Project Area (322 acres)
Non-Jurisdictional Wetlands NORTH
Anticipated Jurisdictional Determination GLE PLEF McCracken County, KY Issued: 7/2/2025 Li ttle Bay ou Cr eek Litt le Bayou Cre ek W
A 1
0 W
A 2
1 P
A 0
6 W
A 2
2 W
B 1
1 W
V06 W
B 0
5 W
B 0
6 W
B 09 W
B 10 S
B 0
5 S
B 0
3 S
B 0
6 SV0 7
S B04 SV06 1
2 3
4 5
6 7
8 Page Number: 6 0
125 250 375 500 US Feet Jurisdictional Streams Non-Jurisdictional Streams PLEF Project Area (322 acres)
Jurisdictional Wetlands Non-Jurisdictional Wetlands NORTH
Anticipated Jurisdictional Determination GLE PLEF McCracken County, KY Issued: 7/2/2025 725 725 Hobbs Rd Hobbs Rd Wood ville Rd Hobbs Rd Hobbs Rd Woodville Rd Woodville Rd W
A 01 W
B 0
1 W
B 0
2 W
B 0
3 W
A 0
2 W
A2 0
SA 0
1 SB01 1
2 3
4 5
6 7
8 Page Number: 7 0
125 250 375 500 US Feet Jurisdictional Streams Non-Jurisdictional Streams PLEF Project Area (322 acres)
Non-Jurisdictional Wetlands NORTH
Anticipated Jurisdictional Determination GLE PLEF McCracken County, KY Issued: 7/2/2025 Woodville Rd 725 725 Magruder Rd Woodville Rd Magruder Rd Woodville Rd Litt le Ba Illinois Central Gulf R Woo dville Rd W
B 0
3 W
B 0
4 W
A2 0
W B
0 5
WB06 WA19 S
B0 2
S B
0 1
SV06 1
2 3
4 5
6 7
8 Page Number: 8 0
125 250 375 500 US Feet Jurisdictional Streams Non-Jurisdictional Streams PLEF Project Area (322 acres)
Jurisdictional Wetlands Non-Jurisdictional Wetlands NORTH
9 ATTACHMENT 2 - SUPPLEMENTAL REPORT
2301 McCracken Boulevard, Paducah, KY 42001 / bfwengineers.com / 270-443-1995 GLE Paducah Laser Enrichment Facility - USACE ID No.: LRL-2025-00040 Additional Information - Supplement to Delineation Report
Purpose:
Supplemental Data for Wetland Delineation Jurisdictional Determination (JD)
Date: June 17, 2025 From: Susannah Campbell, PMP On behalf of Boston Government Services, LLC (BGS), Bacon Farmer Workman Engineering & Testing, Inc.
(BFW) is pleased to submit supplemental information related to the jurisdictional connections for a water/wetland delineation for the Global Laser Enrichment (GLE) Paducah Laser Enrichment Facility (PLEF) located in McCracken County, Kentucky. The initial delineation report by Burns & McDonnell dated November 11, 2024.
Summary of Previous Delineation Report: The delineation for the work area associated with the PLEF Project Area was completed by Burns & McDonnell and documented in a report dated November 11, 2024 that was submitted to the U.S. Army Corps of Engineers (USACE) as part of the project permit application. This report presented the environmental setting of the project, regulatory and technical definitions, and methods and materials. The delineation documented 38 wetlands, 20 streams, and six ponds within the PLEF Project Area but did not assess the potential status of these features.
Reassessment of Potential Jurisdictional Water/Wetland Features: On Monday, June 9, 2025, GLE, BFW, BGS, and Burns & McDonnell met with USACE to discuss the project and the previously submitted Delineation Report. During that meeting, project manager, Meagan Knuckles, requested additional information on the reporting to determine which features would be jurisdictional. To support this effort, BFW staff conducted a field visit on June 17, 2025 to reassess several previously delineated water/wetland features as identified by Burns &
McDonnell. The primary objective was to evaluate the physical characteristics and hydrologic connectivity of these features to determine their potential jurisdictional status. A photo map is attached in Appendix A and photographs of the associated water/wetland features are provided in Appendix B.
The June 2025 visit to the PLEF area occurred after recent rain events and directly after a rainfall event that accumulated slightly less than an inch. Site observations during the visit included saturated soils, standing water, and drainage patterns. The USACE Antecedent Precipitation Tool (Deters, 2023) rated June 17, 2025 as Wetter than Normal - 16. The Antecedent Precipitation Tool output for the visit on June 17 depicts the 30-day rolling rainfall total in comparison to 30-year normal precipitation ranges. The APT is included in Appendix C.
Ephemeral streams were characterized as typically having flowing water only during rainfall events and for a short time afterward in a typical year. Ephemeral stream beds are located above the water table year-round, so groundwater is not a source of water for the stream. Runoff from precipitation is the primary source of water for stream flow.
Non-jurisdictional ditches were classified according to the definition presented by the EPA within the Revised Definition of Waters of the United States issued on January 18, 2023. These features are defined as being ditches (including roadside ditches) excavated wholly in and draining only dry land and that do not carry a relatively permanent flow of water.
The June 2025 reassessment documented one previously delineated area which appeared to be jurisdictional.
The Wetland WA11 complex measures approximately 1.00 acres within the study area and is comprised of a forested wetland (PFO) and emergent wetland (PEM). See below for descriptions on all water/wetland features assessed. Photographs are included in Appendix B.
Water/Wetland Delineation - Paducah Laser Enrichment Facility Page 2 Updated Water/Wetland Tables: The following tables present an updated version of the water/wetland tables that were presented in the 2024 delineation report for the reassessed features. Table 1 identifies the wetlands which were reassessed during the site visit as well as the proposed jurisdictional status.
Table 1 - Updated Wetland Summary Table Wetland Typea Acres Statusc WA01b PEM 1.51 Non-Jurisdictionalc WA01b PFO 3.51 Non-Jurisdictionalc WA03 PFO 0.79 Non-Jurisdictionalc WA04 PEM 0.75 Non-Jurisdictionalc WA11b PEM 0.40 Jurisdictionalc WA11b PFO 0.60 Jurisdictionalc WA12 PEM 0.33 Non-Jurisdictionalc WA13 PFO 0.38 Non-Jurisdictionalc WA16 PFO 3.34 Non-Jurisdictionalc aUSFWS habitat classifications from Cowardin, 1979. PFO = Palustrine Forested Wetland, PEM = Palustrine Emergent Wetland bPart of a wetland complex consisting of PFO and PEM wetlands cJurisdictional/Isolated determination is provisional and final designations would be assigned by the U.S. Army Corps of Engineers during their project review Wetland WA01 is located within a broad depression and lacks identifiable drainage features. Based on the lack of hydrologic connection to a downstream jurisdictional water, it appears that it would be interpreted as non-jurisdictional.
Wetland WA03 is located within a shallow depression. It drains into a ditch on the western portion of the site that does not have relatively permanent flow. While the wetland is connected to downstream waters, the lack of permanent flow suggests it would likely be interpreted as non-jurisdictional.
Wetland WA04 is a wetland fringe adjacent to Pond PA02 and did not contain identifiable drainage features. Based on the lack of hydrologic connection to a downstream jurisdictional water, it appears that it would be interpreted as non-jurisdictional.
Wetland WA11 is located within a depression north of a berm for Pond PA05 and drained into a relatively permanent water that flows west offsite, eventually draining into the Ohio River. The drainage was evaluated for indicators of relatively permanent flow. Observations included the presence of iron bacteria, hydrophytic vegetation, and amphibians. Thus, it appears that it would be interpreted as jurisdictional.
Wetland WA12 is located in a grassy swale and shallow depression but did not have identifiable drainage features.
Based on the lack of hydrologic connection to a downstream jurisdictional water, it appears that it would be interpreted as non-jurisdictional.
Water/Wetland Delineation - Paducah Laser Enrichment Facility Page 3 Wetland WA13 is located in a shallow depression. It drains into a ditch on the western portion of the site that does not have relatively permanent flow. While the wetland is connected to downstream waters, the lack of permanent flow suggests it would likely be interpreted as non-jurisdictional.
Wetland WA16 is located within a broad depression. It drains into an upland ditch on the northern side and did not have identifiable drainage features. While the wetland is connected to downstream waters, the lack of permanent flow suggests it would likely be interpreted as non-jurisdictional.
Table 2 provides a summary of the two streams which were identified and their jurisdictional status.
Table 2 - Updated Stream Summary Table Stream Type Width of Stream Delineated at OHWM (feet)
Length of Delineated Stream in Survey Area (feet)
Statusa SA10 Ephemeral 1.5 1,024.68 Non-Jurisdictional SB01 Ephemeral 1
461.89 Non-Jurisdictional aJurisdictional/Isolated determination is provisional and final designations would be assigned by the U.S. Army Corps of Engineers during their project review Stream SA10 flows southeast to northwest through a relatively flat, forested area before continuing offsite to the northwest. It drains into a ditch that lacks relatively permanent flow. As a result, it would likely be interpreted as non-jurisdictional.
Stream SB01 flows southwest through a forested area before draining into a roadside ditch without relatively permanent flow. As a result, it would likely be interpreted as non-jurisdictional.
Table 3 provides a summary of the two ponds which were identified and their jurisdictional status.
Table 3 - Updated Pond Summary Table Pond Typea Acres Statusb PA02 PUB 1.68 Non-Jurisdictionalb PA05 PUB 1.92 Non-Jurisdictionalb aUSFWS habitat classifications from Cowardin, 1979. PUB = Palustrine Unconsolidated Bottom bJurisdictional/Isolated determination is provisional and final designations would be assigned by the U.S. Army Corps of Engineers during their project review Pond PA02 is located in the northwestern portion of the project area. It is surrounded by berms on three sides and does not exhibit any surface hydrologic connection to downstream waters. Due to its isolated position and lack of permanent or ephemeral flow connections, it would likely be considered non-jurisdictional.
Pond PA05 located in the northwestern portion of the project area. It is similarly isolated by berms and does not have inlet or outlet features that connect to jurisdictional waters. Based on the absence of a hydrologic connection, it would likely be interpreted as non-jurisdictional.
Water/Wetland Delineation - Paducah Laser Enrichment Facility Page 4 In summary, only wetland complex (WA11) is a potential jurisdictional water/wetland features while all other features appear to be non-jurisdictional.
List of Appendices:
A - Supplemental Photo Map B - Supplemental Photographs C - Antecedent Precipitation Tool
Appendix A Supplemental Photo Map
SB01 SA10 PA02 PA05 MO TN AR KY IL 1 inch : 1000 feet 0
1,000 2,000
2025-07-02 HK/LD 24216 Project Number: Draed/Checked: Date:
GLE Paducah Laser Enrichment Facility McCracken County, KY Picture Loca ons Project Data Picture Loca2ons GLE Land Parcel PLEF Project Area Wetlands Ponds Streams LEGEND 1
5 6
7 8
9 10 11 12 13 WA11 2
3 4
WA11 WA16 WA12 14 WA13 15 WA03 16 WA01 WA04 WA01
Appendix B Supplemental Photographs
Page 1 Paducah Laser Enrichment Facility Supplement to 2024 Delineation BFW Project # 24216 Photograph 1: WA16 - Upland ditch - June 17, 2025 Photograph 2: WA11 - Direct connection to relatively permanent water
- June 17, 2025
Page 2 Paducah Laser Enrichment Facility Supplement to 2024 Delineation BFW Project # 24216 Photograph 3: WA11 - Relatively permanent water - June 17, 2025 Photograph 4: WA11 - Relatively permanent water looking offsite - June 17, 2025
Page 3 Paducah Laser Enrichment Facility Supplement to 2024 Delineation BFW Project # 24216 Photograph 5: PA05 - Overview photo of the pond showing the condition of the berms
- June 17, 2025 Photograph 6: PA02 - Overview photo of the pond. Note that dense vegetation may obscure the current condition of the berms - June 17, 2025
Page 4 Paducah Laser Enrichment Facility Supplement to 2024 Delineation BFW Project # 24216 Photograph 7: WA04 - Wetland with no hydrologic connections - June 17, 2025 Photograph 8: WA12 - Wetland with no hydrologic connections - June 17, 2025
Page 5 Paducah Laser Enrichment Facility Supplement to 2024 Delineation BFW Project # 24216 Photograph 9: SA10 - Stream outlet with no relatively permanent water
- June 17, 2025 Photograph 10: SA10 - General overview of ephemeral stream flowing northwest
- June 17, 2025
Page 6 Paducah Laser Enrichment Facility Supplement to 2024 Delineation BFW Project # 24216 Photograph 11: WA13 - Wetland with no relatively permanent water connection
- June 17, 2025 Photograph 12: WA03 - Wetland with no relatively permanent water connection
- June 17, 2025
Page 7 Paducah Laser Enrichment Facility Supplement to 2024 Delineation BFW Project # 24216 Photograph 13: WA01 - Wetland with no hydrologic connection - June 17, 2025 Photograph 14: WA01 - Wetland with no hydrologic connection - June 17, 2025
Page 8 Paducah Laser Enrichment Facility Supplement to 2024 Delineation BFW Project # 24216 Photograph 15: SB01 - Upland ditch - June 17, 2025 Photograph 16: SB01 - Overview of ditch with water at a downstream segment
- June 17, 2025
Appendix C Antecedent Precipitation Tool
Nov 2024 Dec 2024 Jan 2025 Feb 2025 Mar 2025 Apr 2025 May 2025 Jun 2025 Jul 2025 Aug 2025 Sep 2025 Oct 2025 0
2 4
6 8
10 Rainfall (Inches) 2025-06-17 2025-05-18 2025-04-18 Antecedent Precipitation vs Normal Range based on NOAA's Daily Global Historical Climatology Network Daily Total 30-Day Rolling Total 30-Year Normal Range 30 Days Ending 30th %ile (in) 70th %ile (in)
Observed (in)
Wetness Condition Condition Value Month Weight Product 2025-06-17 3.088189 5.222835 7.913386 Wet 3
3 9
2025-05-18 3.909449 6.632677 4.251969 Normal 2
2 4
2025-04-18 3.215354 5.526772 9.26378 Wet 3
1 3
Result Wetter than Normal - 16 Coordinates 37.095151, -88.820126 Observation Date 2025-06-17 Elevation (ft) 400.234 Drought Index (PDSI)
Severe wetness (2025-05)
WebWIMP H2O Balance Dry Season Weather Station Name Coordinates Elevation (ft)
Distance (mi)
Elevation Weighted Days Normal Days Antecedent PADUCAH 37.0683, -88.7719 505.906 3.242 105.672 1.801 11353 90
10 ATTACHMENT 3 - SUPPLEMENTAL PHOTOS
GLE Paducah Laser Enrichment Facility BGS Supplemental Photographs July 15-18, 2024 McCracken County, KY Photograph C-1: View of Pond PA01, facing north.
Photograph C-2: View of Pond PA03 PUB, facing south.
GLE Paducah Laser Enrichment Facility BGS Supplemental Photographs July 15-18, 2024 McCracken County, KY Photograph C-3: View of Pond PA04, facing south.
Photograph C-4: View of Pond PA05 PUB, facing southeast. PA02 is in a similarly situated feature and PA05 is representative of PA02.
GLE Paducah Laser Enrichment Facility BGS Supplemental Photographs July 15-18, 2024 McCracken County, KY Photograph C-5: View of Pond PA06, facing west.