Letter of Map Revision

NEW YORK STATE DEPARTMENT OF ENVIRONMENTAL CONSERVATION

Division of Water, Bureau of Flood Protection and Dam Safety 625 Broadway, Albany, New York 12233-3504

P: (518) 402-8185 | F: (518) 402-9029

wwew.dec. ny.gov

February 11, 2026

Joshua Artuso

Director of Community Development and Planning

Town of Webster

1000 Ridge Rd Re: Letter of Map Revision (LOMR)

Webster, NY 14580 Case Number: 24-02-0226P Community No.: 360436 Monroe County

Dear Joshua Artuso:

in accordance with the referenced Letter of Map Revision (LOMR), the Flood Insurance Rate Map (FIRM) panel number 36055C0228G, effective August 28, 2008, has been revised. This is a physical change to the municipality's Flood Insurance Rate Map. It adjusts the extents of the floodway and the Special Flood Hazard Area (SFHA), or Zone AE, and results in revised Base Flood Elevations (BFEs) at some locations along Shipbuilders Creek. The Flood Insurance Study (FIS) report for Monroe County effective July 31, 2024, has also been revised to incorporate these changes in Floodway Data Table 23, Summary of Discharges Table 9, and Flood Profile 211P. The Town is required to adopt this LOMR to maintain National Flood Insurance Program (NFIP} participation.

After review of the local floodplain management regulations recently adopted by your community in Flood Damage Prevention Local Law 1 of 2024 (Chapter 170), we recommend going through a local law amendment to incorporate these changes instead of a replacement of the complete law. The attached model Section 170-6 has already been filled in to correctly reference the LOMR and revised FIRM panel. LOMR Case No. 17-02-1830P has been included in the section as well since it is not present in the most recent local law. However, please be sure to verify the location where the Flood Insurance Study and map panels are kept on file for public access is up to date.

Before making an amendment te your current local law, please provide a draft copy for our review. To allow for a complete review, provide a draft copy of the anticipated amendment to this office no later than ninety (90) days prior to the effective date of the LOMR. The local law needs to be adopted by the community thirty (30) days prior to the effective date of the LOMR to maintain good standing in the NFIP.

To summarize, the key dates in the map adoption process are as follows (see next page):

NEWYORK | Department of apromunry | Environmental Page 1 of 2 Conservation

180 days prior to effective date Deadline for Draft Local Law 60 days prior to Submitted to DEC for Review: Mancnia 2 20ee effective date

Deadline for the Local Law to . 30 days prior to be adopted by the Community: aboalle peers effective date

Deadline for Local Law be adopted by community and approved by DEC & FEMA:

May 28, 2026 Effective date of LOMR

If you have any questions about the amendment process, or wish to discuss floodplain management in general, feel free to contact me directly.

Sincerely,

LR clauaggis Bailey Sawyer, CFM (she/her)

Environmental Program Specialist, Floodplain Management Bureau of Flood Protection and Dam Safety, Division of Water

New York State Department of Environmental Conservation 625 Broadway, Albany, NY 12233-3504 P: 518-402-9148 | bailey.sawyer@dec.ny.gov

Cc (with enclosures): Alex Scialdone — Town Supervisor Danene Marr — Town Clerk

Page 1ofS | Issue Date: December 23, 2025 Effective Date: May 28, 2026 Case No.: 24-02-0226P LOMR-APP

Federal Emergency Management Agency Washington, D.C. 20472

LETTER OF MAP REVISION DETERMINATION DOCUMENT

COMMUNITY ANDO REVISION INFORMATION PROJECT DESCRIPTION BASIS OF REQUEST NO PROJECT 2D HYDRAULIC ANALYSIS en of Webster HYDROLOGY ANALYSIS onroe County BASE MAP CHANGES New York FLOODWAY COMMUNITY UPDATED TOPOGRAPHIC DATA COMMUNITY NO.: 360436 IDENTIFIER | 683 Ridge Road Floodplain Study APPROXIMATE LATITUDE AND LONGITUDE: 43.201, -77 492 SOURCE: Cther DATUM: NAD 83 ANNOTATED MAPPING ENCLOSURES ANNOTATED STUDY ENCLOSURES TYPE FIRM" NO- 36055C0228G DATE: August 28, 2008 DATE OF EFFECTIVE FLOOD INSURANCE STUDY: —_ July 31, 2024

PROFILE 2711P FLOODWAY DATA TABLE: 23 SUMMARY OF DISCHARGES TABLE: $

Enclosures reflect changes to flooding sources affected by this revision. * FIRM - Flood Insurance Rate Map

FLOODING SOURCE AND REVISED REACH

SUMMARY OF REVISIONS

Flooding Source Effective Flooding Revised Flooding Increases Decreases Shipbuilders Creek Ficodway Floodway YES NONE Zone AE Zone AE YES YES Zone X (shaded) Zone X (shaded) YES YES BFEs* BFEs NONE YES

" BFEs - Base (1-percent-annual-chance} Flood Elevations

DETERMINATION

This document provides the determination from the Department of Homeland Security's Federal Emergency Management Agency (FEMA) regarding a request for a Letter of Map Revision (LOMR) for the area descnbed above. Using the information submitted, we have determined that a revision to the flood hazards depicted in the Flood Insurance Study (FIS) report and/or National Flood Insurance Program (NFIP) map is warranted. This document revises the effective NFIP map, as indicated in the attached documentation. Please use the enclosed annotated map panel revised by this LOMR for floodplain management purposes and for all flood insurance policies and renewals in your community.

This determination is based on the flood data presently available. The enclosed documents provide additional information regarding this determination. If you have any questions about this document, please contact the FEMA Mapping and Insurance eXchange tall free at 1-877-336-2627 (1-877-FEMA MAP) or by letter addressed to the LOMC Clearinghouse, 3601 Eisenhower Avenue, Suite 500 Alexandria, VA 22304-6426. Additional Information about the NFIP is available on our website at

https /Avww. fema.qov/flood-insurance.

David N. Bascom, Acting Director Engineering and Modeling Division

National Flood Insurance Program | Resilience 94-02-0226P 4102-I-A-C

Page 20f5 | Issue Date: December 23, 2025 Effective Date: May 28, 2026 Case No.: 24-02-0226P LOMR-APP

Federal Emergency Management Agency Washington, D.C. 20472

LETTER OF MAP REVISION DETERMINATION DOCUMENT (CONTINUED)

OTHER COMMUNITIES AFFECTED BY THiS REVISION

AFFECTED MAP PANELS AFFECTED PORTIONS OF THE FLOOD INSURANCE STUDY REPORT

TYPE FIRM NO. 36055C0228G DATE: August 28, 2008 DATE OF EFFECTIVE FLOOD INSURANCE STUDY: July 34, 2024 PROFILE 211P

SUMMARY OF DISCHARGES TABLE 9

This determination is based on the flood data presently available The enclosed documents provide additional information regarding this determination. If you have any questions about this document, please contact the FEMA Mapping and Insurance eXchange toll free at 1-877-336-2627 (1-877-FEMA MAP) or by letter addressed to the LOMC

Clearinghouse, 3601 Eisenhower Avenue, Suite 500, Alexandria, VA 22304-6426. Additional Information about the NF'P ts available on our website at https /Avww fema_govifiood-ins yrange.

David N. Bascom, Acting Director Engineenng and Modeling Division National Flood Insurance Program | Resilience

24-02-0226P 102-1-A-C

Page 30f5 | Issue Date: December 23, 2025 Effective Date: May 28, 2026 Case No.: 24-02-0226P LOMR-APP

Federal Emergency Management Agency Washington, D.C. 20472

LETTER OF MAP REVISION DETERMINATION DOCUMENT (CONTINUED)

COMMUNITY INFORMATION

APPLICABLE NFIP REGULATIONS/COMMUNITY OBLIGATION

We have made this determination pursuant to Section 206 of the Flood Disaster Protection Act of 1973 (P.L. 93-234) and in accordance with the National Flood Insurance Act of 1968, as amended (Title XIII of the Housing and Urban Development Act of 1968, P.L. 90-448), 42 U.S.C. 4001-4128, and 44 CFR Part 65, Pursuant to Section 1361 of the National Flood Insurance Act of 1968, as amended, communities participating in the NFIP are required to adopt and enforce floodplain management regulations that meet or exceed NFIP criteria. These criteria, including adoption of the FIS report and FIRM, and the modifications made by this LOMR, are the minimum requirements for continued NFIP participation and do not supersede more stringent State/Commonwealth or local requirements to which the regulations apply.

We provide the floodway designation to your community as a tool to regulate floodplain development. Therefore, the floodway revision we have described in this letter, while acceptable to us. must also be acceptable to your community and adopted by appropriate commmunily action, as specified in Paragraph 60.3(d) of the NFIP regulations.

COMMUNITY REMINDERS

We based this determination on the |-percent-annual-chance (base) flood discharges computed in the hydrology analysis without considering subsequent changes in watershed characteristics that could increase flood discharges. Future development of projects upstream could cause increased flood discharges, which could cause increased flood hazards. A comprehensive restudy of your community’s flood hazards would consider the cumulative effects of development on flood discharges subsequent to the publication of the FIS report for your community and could, therefore, establish greater food hazards in this area.

Your community must regulate all proposed floodplain development and ensure that permits required by Federal and/or State/Commonwealth law have been obtained. State/Commonwealth or community officials, based on knowledge of local conditions and in the interest of safety, may set higher standards for construction or may limit development in floodplain areas. If your State/Commonwealth or community has adopted more restrictive or comprehensive floodplain management criteria, those criteria take precedence over the minimum NFIP requirements.

We will not print and distribute this LOMR to primary users, such as local insurance agents or mortgage lenders; instead, the community will serve as a repository for the new data. We encourage you to disseminate the information in this LOMR by preparing a news release for publication in your community's newspaper that describes the revision and explains how your community will provide the data and help interpret the NFIP maps. In that way, interested persons, such as property owners, insurance agents, and mortgage lenders, can benefit from the information.

This determination is based on the flood data presently available. The enclosed documents provide additional information regarding this determination. If you have any questions about this document, please contact the FEMA Mapping and Insurance eXchange toll free at 1-877-336-2627 (1-877-FEMA MAP) or by letter addressed to the LOMC Clearinghouse, 3601 Eisenhower Avenue, Suite 500, Alexandria, VA 22304-6426. Additional Information about the NFIP is available on our website at

https /Awww. fema.gov/flood-insurance,

David N. Bascom, Acting Director Engineering and Modeling Division

National Flood Insurance Program | Resilience 94-02-0226P 102-1-4-C

Page 4 ofS | Issue Date: December 23, 2025 Effective Date: May 28, 2026 Case No.: 24-02-0226P LOMR-APP

Federal Emergency Management Agency Washington, D.C. 20472

LETTER OF MAP REVISION DETERMINATION DOCUMENT (CONTINUED)

It must be emphasized that all the standards specified in Paragraph 60.3(d) of the NFIP regulations must be enacted in a legally enforceable document. This includes adoption of the current effective FIS report and FIRM to which the regulations apply and other modifications made by this map revision. Some of the standards should already have been enacted by your community to establish initial eligibility in the NFIP.

Your community can meet any additional requirements by taking one of the following actions:

1. Amending existing regulations to incorporate any additional requirements of Paragraph 60,3(d).

2. Adopting all the standards of Paragraph 60.3(d) into one new, comprehensive set of regulations.

3. Showing evidence that regulations have previously been adopted that meet or exceed the minimum requirements of Paragraph 60.3(d).

Communities that fail to enact the necessary floodplain management regulations will be suspended from participation in the NFIP and subject to the prohibitions contained in Section 202(a) of the Flood Disaster Protection Act of 1973 (Public Law 93-234) as amended.

We have designated a Consultation Coordination Officer (CCO) to assist your community. The CCO will be the primary liaison between your community and FEMA. For information regarding your CCO, please contact:

William McDonnell Director, Mitigation Division Federal Emergency Management Agency, Region 2 One World Trade Center, 285 Fulton Street, 52nd Floor New York, NY 10007 (347) 882-5706

STATUS OF THE COMMUNITY NFIP MAPS

We will not physically revise and republish the FIRM and FIS report for your community to reflect the modifications made by this LOMR at this time. When changes to the previously cited FIRM panel and FIS report warrant physical revision and republication in the future, we will incorporate the modifications made by this LOMR at that time.

This determination is based on the flood data presently available. The enclosed documents provide additional information regarding this determination. If you have any questions about this document, please contact the FEMA Mapping and Insurance eXchange toll free at 1-877-336-2627 (1-877-FEMA MAP) or by letter addressed to the LOMC Clearinghouse, 3601 Eisenhower Avenue, Suite 500, Alexandna, VA 22304-6426. Additional Information about the NFIP is avaiable on our website at

hitps Awww. fema.qov/flood-insurance.

aay, 8 Feeawurvee

David N. Bascom, Acting Director Engineenng and Modeling Division National Flood Insurance Program | Resilience 14-.02-0226P 102-1-A-C

Page 50f5 | Issue Date: December 23, 2025 Effective Date: May 28, 2026

Federal Emergency Management Agency Washington, D.C. 20472

LETTER OF MAP REVISION DETERMINATION DOCUMENT (CONTINUED)

PUBLIC NOTIFICATION OF REVISION

A notice of changes will be published in the /ecderal Register. This information also will be published in your local newspaper on or about the dates listed below, and through FEMA’s Flood Hazard Mapping website at

https://www.floodmaps.fema.govw/fhm/bfe_status/bfe main.asp

Within 90 days of the second publication in the local newspaper. any interested party may request that we reconsider this determination. Any request for reconsideration must be based on scientific or technical data. This revision will be effective 6 months from the date of

this letter and only after we have resolved any appeals that we receive during the appeal period. Until this LOMR is effective, the revised flood hazard determination presented in this LOMR may be changed.

This determination 1s based an the flood data presently available. The enclosed docurnents provide additional information regarding this determination If you have any questions about this document, please contact the FEMA Mapping and Insurance eXchange toll free at 1-877-336-2627 (1-877-FEMA MAP) or by letter addressed to the LOMC

Clearinghouse, 3601 Eisenhower Avenue. Suite 500, Alexandria, VA 22304-6426. Additional Information about the NFIP is available on our website at hittos /Awww ferma gov/flood-insurance.

Til 1 fomacoe

David N. Bascom, Acting Director Engineering and Modeling Division National Flood Insurance Program | Resilience

24-02-0226P 102--A-C

Table 9: Summary of Discharges (Continued)

Drainage | __Peak Discharge (cfs) Area T 0.2% (Square 10% Annual | 4% Annual |. 2% Annual | 4% Annual Annual Flooding Source Location Miles) Chance Chance Chance Chance Chance Round Pond Creek | Upstream of State Route 104 . Reach 1 (Ridge Road) 9.13 322 472 515 669 Round Pond Creek | Upstream of Fox Meadow * Reach 1 Drive 8.62 295 424 462 598 Round Pond Creek a | Reach 1 Upstream of Straub Road 6.97 213 239 247 j 344 At downstream Town of rou 5 ond Creek Greece/Town of Gates 0.59 . * * 265 , corporate limits : At Braddock Bay State * Salmon Creek Park boundary 500 4,000 Uys: 10,150 15,900 32,000 At the Town of Greece/ Town . Salmon Creek of Parma corporate limits 88.9 3,980 10,100 15,800 31,900 Salmon Creek At Manitou Road 59.27 3,259 * 4,855 §,650 7,615 At downstream Town of Salmon Creek Parma/village of Hilton 55.7 3,130 . 4,678 5,449 7,355 corporate limits At upstream Town of Parma/ Salmon Creek Village of Hilton corporate 53.7 3,015 . 4,499 5,239 7,070 limits Salmon Creek At Hill Road 33.16 1,760 * 2,594 3,006 4,006 Shipbuilders Creek At the mouth 8 962 * 1,450 1,690 2,230 Upsiream of the confluence of Shipbuilders Creek East Branch Shipbuilders 4 495 * 705 800 1,040 Creek Upstream of the confluence of Shipbuilders Creek =| an unnamed tributary 1,900 2.6 336 . 480 550 710 th of Klem R: Shipbuilders Creek _[ At Ridge Road 2.2 279 444 519 731 | *Not calculated for this Flood Risk Project REVISED TO REVISED DATA REFLECT LOMR

61

Table 23: Floodway Data (Continued)

BASE FLOOD FLOODING SOURCE FLOODWAY WATER-SURFACE ELEVATION (FEET NAVD88) SECTION MEAN 1 WIDTH AREA VELOCITY WITHOUT WITH CROSS SECTION DISTANCE (FEET) | (SQUARE | (FEET PER REGULATORY FLOODWAY | FLOODWAY INCREASE FEET) SECOND) Shipbuilders Creek A 53 60 263 6.2 252.2 252.2 252.6 0.4 B 528 100 372 44 253.5 253.5 254.0 0.6 c 1,320 100 1,233 13 268.3 268.3 269.3 1.0 D 2,060 67 §33 3.1 268.9 268.9 269.3 04 E 3,062 52 163 10.1 271.9 271.9 272.5 0.6 F 4,171 70 565 29 286.2 286.2 286.2 0.0 SG 4,699 65 882 1.9 292.9 292.9 292.9 0.0 H 6,178 100 753 2.2 296.5 296.5 296.5 0.9 7,339 66 282 27 296.6 296.6 296.9 0.3 J 8,290 76 137 5.5 310.8 310.8 311.1 0.3 K 8,765 65 112 6.7 3216 221.6 321.6 0.0 L 9,768 30 81 9.3 333.1 333.1 333.1 0.0 M 40,771 60 427 41.5 3418 341.8 418 0.0 N 11,669 71 231 27 342.1 342.1 342.2 01 .@) 12,778 88 83 6.5 345.6 345.6 345.6 oo P 15,048 60 113 48 363.5 363.5 363.5 oo Q 18,163 60 83 65 392.0 392.0 392.0 0.0 R 18,850 39 136 4.0 396.9 396.9 397.4 0.5 $ 20.486 49 55 6.2 405.3 405.3 405.3 0.0 T 22,684 882 5,432 0.9 419.2 419.2 420.2 1.0 u 25,113 215 1,110 11 424.5 424.5 425.1 0.6 REVISED DATA

IFeet above mouth

FEDERAL EMERGENCY MANAGEMENT

REVISED TO AGENCY REFLECT LOMR FLOODWAY DATA SEFLECTLOMR |

MONROE COUNTY, NY

t¢ F1avLl

{ALL JURSIDICTIONS) FLOODING SOURCE: SHIPBUILDERS CREEK

165

ELEVATION iN FEET (NAVD 38)

REVISED REACH

fl i 1 - _ et —| - 1] N 1 Lt LI | 1 1 I an Ja-] i 5 ce + E Jo iS ai } i) t rn QI n ny Lit cet. oD : lt Ld 1 T i is wW i i } +a]. : a] eae he 7 ie ze 13h wi] 118 2 8 iB |ea To] Ge wy wy WW 2a +a) 8 _ fie 8 5 arc Te| Sy Ce = =) a ees E - i 430 : > ; i nm ie]: f r fei 425 | oo imam By ooo ; CULVERT. fia | Hf - i Peuevert Se nace Hpin a Ce els Qe eed Ke pat J EEE EEE HE 415. HCULVERT: Lea EC ape ith - f [ J [ a ——- = 1 ~ - ic 410 = LEGEND i E | OP ANNUAL CHANCE FLOOD —_— = ss ANU, CANT PLO ; — = 2% ANNUAL CHANCE FLOCO 405 7m a Tht [ i t SB inGeepen| | Ceo soo le 10% ANNUAL CHANGE FLOOD _ Uy PEWS STREAM BED Gy @) : O CROSS SECTION LOCATION 400 HER EH] | te fe tee EE ~ Hl [ster ae Rime 20500 21000 21800 22000 22500 23000 23500 24000 24500 25000 25600

STREAM DISTANCE IN FEET ABOVE MOUTH

430

425

420

415

410

REFLECT LOMR FLOOD PROFILES SRE |

SHIPBUILDERS CREEK

MONROE COUNTY, NY (ALL JURISDICTIONS)

FEDERAL EMERGENCY MANAGEMENT AGENCY

211P

JOINS PANEL 0209

Bee?

Sf Bee

af

ae OTHER AREAS OF m FLOOD HAZARD

TRE «(0-2 % Annual Chanes Flood Marard, Areas

er Futee Congitions 1% Aonual

WEA *08 with Reduced Flood Risk dus tolevee

pera With BFE or Depth zr0 ar. 40.44 H.Ae

of 1S apnual chance food with average depth Wess than.ong foot or with deainage meas ofless than one Square mile trex

~~ Cheace Flood Hazard zrsex

' See Notes za . SCALE Imagery Source, NAIP 2024 5° ry Sdn Paton . Lira Paredes Moti SAD Lfh) 1 Zone Si aT Paar Veh DST NE BB ‘ N Linch = S00 fect 16,000) a 250 so 100 Feel a Mowers Q 625 125 0

4

National Flood Insurance Program

NATIONAL FLOOD INSURANCE PROGRAM FLOOG INSURANCE RATE MAP

MONROE COUNTY, NEW YORK

PA LIRISDICTIONS gia NA ne 228 528 —_

AUGUST 28, 2008

§ 170-6. Basis for establishing areas of special flood hazard.

A. The areas of special flood hazard for the Town of Webster. Community Number 360436 are

(1)

(2)

(4)

(5)

(6)

identified and defined on the following documents prepared by the Federal Emergency Management Agency:

Flood Insurance Rate Map (FIRM) Panel Numbers:

3605SCO094H, 36055CO1I3H, 36055CO114H, 36055CO118H, 36055CO119H, 36055C0206H, 36055C0207H, 36055C0208H, 36055C0209H, 36055C0226H, whose effective date is July 31, 2024, and any subsequent revisions to these map panels that do not affect areas under our community’s jurisdiction.

A scientific and engineering report entitled "Flood Insurance Study, Monroe County. New York, All Jurisdictions” dated July 31, 2024.

FIRM Panel Numbers:

36055C0227G, 36055C0228G. 36055C0229G, 36055C0231G, 36055C0232G, 36055€0233G, 36055C0234G., whose effective date is August 28, 2008. and any

subsequent revisions to these map panels that do not affect areas under our community’s jurisdiction.

A scientific and engineering report entitled "Flood Insurance Study, Monroe County, New York, All Jurisdictions" dated August 28, 2008.

Letter of Map Revision (LOMR) Case No.: 17-02-1830P. effective August 2, 2018. revising FIRM panels 36055C0233G and 36055C0234G, Flood Insurance Study Profile 87P, and Floodway Data Table 9.

Letter of Map Revision (LOMR) Case No.: 24-02-0226P. effective May 28. 2026, revising FIRM panel 36055C0228G. Flood Insurance Study Profile 211P, Summary of Discharges Table 9, and Floodway Data Table 23.

B. The above documents are hereby adopted and declared to be a part of this Local Law. The Flood

Insurance Study and/or maps are on file at Town Hall. located at 1000 Ridge Road, Webster, NY 14580.