City Council - CANCELLED

CITY COUNCIL AGENDA REGULAR MEETING CITY OF HALF MOON BAY TUESDAY, MARCH 21, 2023 HYBRID MEETING (SEE NEXT PAGE) ADCOCK COMMUNITY CENTER 535 KELLY AVENUE HALF MOON BAY, CA 94019 Deborah Penrose, Mayor Joaquin Jimenez, Vice Mayor Robert Brownstone, Councilmember Harvey Rarback, Councilmember Debbie Ruddock, Councilmember 7:00 PM This agenda contains a brief description of each item to be considered. Those wishing to address the City Council on any matter not listed on the agenda, but within the jurisdiction of the City Council to resolve, may come forward to the podium during the Public Forum portion of the agenda and will have a maximum of three minutes to discuss their item. Comments on Consent Calendar items should be made during the Public Forum section of the agenda. Those wishing to speak on a Business or Public Hearing matter will be called forward at the appropriate time during that item’s consideration. Please Note: Anyone wishing to present materials to the City Council, please submit seven copies to the City Clerk. Copies of written documentation relating to each item of business on the agenda are on file in the Office of the City Clerk at City Hall where they are available for public inspection. If requested, the agenda shall be available in appropriate alternative formats to persons with a disability, as required by Section 202 of the Americans with Disabilities Act of 1990 (42 U.S.C. Sec. 12132.) Information may be obtained by calling 650-726-8271. In compliance with the Americans with Disabilities Act, special assistance for participation in this meeting can be obtained by contacting the City Clerk’s Office at 650-726-8271. A 48-hour notification will enable the City to make reasonable accommodations to ensure accessibility to this meeting (28 CFR 35.102-35.104 ADA Title II). http://hmbcity.com/ 1

SPECIAL HYBRID MEETING PARTICIPATION PROTOCOLS This meeting will be held in-person and via Zoom for public participation. Public comments may be made in-person or remotely via Zoom, and interpretation will be available. All Councilmembers will participate in person. During any public comment portions, attendees may use the “raise your hand” feature and will be called upon and unmuted when it is their turn to speak. The meeting will also be streamed on Channel 27, on pacificcoast.tv, and on Facebook at www.facebook.com/cityofhalfmoonbay. Please click to join the webinar: https://us06web.zoom.us/j/87674804231 or join by phone at 669-900-9128, using Webinar ID 876-7480-4231. If joining by phone, use *9 to raise your hand, *6 to mute and unmute. ROLL CALL / PLEDGE OF ALLEGIANCE APPROVAL OF AGENDA PROCLAMATIONS AND PRESENTATIONS MIDCOAST COMMUNITY COUNCIL UPDATE MAYOR'S ANNOUNCEMENTS OF COMMUNITY ACTIVITIES AND COMMUNITY SERVICE REPORT OUT FROM RECENT CLOSED SESSION MEETINGS CITY MANAGER UPDATES TO COUNCIL 555 KELLY WORKSHOP ANNOUNCEMENT PUBLIC FORUM 1. CONSENT CALENDAR 1.A WAIVE READING OF RESOLUTIONS AND ORDINANCES 1.B WARRANTS FOR THE MONTH OF FEBRUARY 2023 Staff Recommendation: Accept the warrants list for the month of February 2023. STAFF REPORT ATTACHMENT 1.C PROFESSIONAL SERVICES AGREEMENT FOR ON-CALL GEOMORPHOLOGY SERVICES Staff Recommendation: Adopt a Resolution authorizing the City Manager to award and execute a Professional Services Agreement (PSA) for On-Call Professional Geomorphology Services through June 30, 2024 to the most qualified consultant, Waterways Consulting, Inc., of Santa Cruz, CA, in an amount not-to- exceed $50,000. STAFF REPORT 2

ATTACHMENT 1 ATTACHMENT 2 1.D ACCEPTANCE OF THE MIRAMONTES POINT SEA LEVEL RISE VULNERABILITY AND FISCAL IMPACT ASSESSMENT Staff Recommendation: By resolution, accept the Miramontes Point Sea Level Vulnerability and Fiscal Impact Assessment. STAFF REPORT ATTACHMENT 1 ATTACHMENT 2 ATTACHMENT 3 1.E RESOLUTION DESIGNATING THE CITY MANAGER, PUBLIC WORKS DIRECTOR, BY TITLE, AS APPLICANT'S AGENT FOR NON-STATE AGENCIES FOR THE CALIFORNIA OFFICE OF EMERGENCY SERVICES (CALOES) PUBLIS ASSISTANCE PROGRAM & HAZARD MITIGATION GRANT PROGRAM Staff Recommendation: Adopt a resolution entitled, “Designation of Applicant’s Agent Resolution for Non-State Agencies” designating the City Manager, Public Works Director and the Administrative Services Director, by title, as Applicant's Agent for Non-State Agencies for the California Office of Emergency Services (CalOES) Public Assistance Program & Hazard Mitigation Grant Program. STAFF REPORT ATTACHMENT 2. ORDINANCES AND PUBLIC HEARINGS None. 3

3. RESOLUTIONS AND STAFF REPORTS 3.A ADOPTION OF THE 2023 LEGISLATIVE PLATFORM Staff Recommendation: Adopt a resolution establishing a Legislative Platform for 2023. STAFF REPORT RESOLUTION ATTACHMENT 1 3.B WORK SESSION ON THE OPERATION OF E-BIKES AND OTHER ELECTRIC DEVICES ON TRAILS AND PATHS Staff Recommendation: Conduct a work session and, by motion, direct staff to: 1. Draft an ordinance amending the Half Moon Bay Municipal Code to: a. Establish a speed limit of 15 miles per hour with 5 miles per hour when passing on all Half Moon Bay trails. b. Permit Class 1, 2, and 3 e-bikes as well as electric scooters and electric boards on all Half Moon Bay-owned multi-use paths and trails 2. Create and place "share the trail" signage along Half Moon Bay’s multi-use trails. STAFF REPORT ATTACHMENT 1 ATTACHMENT 2 ATTACHMENT 3 3.C MID-YEAR REVIEW AND ADOPTION OF RESOLUTION TO AMEND THE FISCAL YEAR 2022-23 BUDGET Staff Recommendation: Adopt the attached Resolution to amend the FY 2022-23 Operating and Capital budget. STAFF REPORT ATTACHMENT 1 ATTACHMENT 2 ATTACHMENT 3 4

ATTACHMENT 4 FOR FUTURE DISCUSSION / POSSIBLE AGENDA ITEMS CITY COUNCIL REPORTS ADJOURNMENT 5

BUSINESS OF THE COUNCIL OF THE CITY OF HALF MOON BAY AGENDA REPORT For meeting of: March 21, 2023 TO: Honorable Mayor and City Council VIA: Matthew Chidester, City Manager From: Lisa Lopez Rossi, Interim Assistant City Manager TITLE: WARRANTS FOR THE MONTH OF FEBURARY 2023 ______________________________________________________________________________ RECOMMENDATION: Accept the warrants list for the month of February 2023. STRATEGIC ELEMENT: This recommendation supports the Fiscal Sustainability and Inclusive Governance Elements of the Strategic Plan. DISCUSSION: During this month, the City processed 5 check runs. The first was on February 1, totaling $1,145,555. The second was on February 4, totaling $15,094. The third was on February 9, totaling $293,235. The fourth was on February 16, totaling $523,354. The fifth was on February 22, totaling $38,432. The total for the month was $2,015,670. The City processed payments related to 9 capital improvement projects, in a total amount of $190,181. These projects include Pavement Management/Traffic Program, Highway 1 North, Parks Master Plan, Carter Park, Eastside Parallel Trail, Climate Action and Adaptation, Sidewalk Replace and Repair Program, Kehoe/Pilarcitos Outfall Repair, Pump Station and Force Main. Staff is also including a list of all payments above $30,000 processed during this reporting period, as listed in the table below. ATTACHMENTS: Check Disbursement List by Check Date Check # Payee Check Date Payment Amount Description 52234 SAN MATEO COUNTY SHERIFF'S OFFICE 2/1/2023 919,568 SHERIFF PATROL SERVICES 52326 SEWER AUTHORITY MID-COASTSIDE 2/16/2023 427,146 SAM OPERATIONS AND MAINTENANCE 52289 WICKMAN DEVELOPMENT AND CONSTRUCTIO 2/9/2023 106,770 CARTER PARK IMPROVEMENTS 52235 SHUTE MIHALY & WEINBERGER LLP 2/1/2023 81,945 LEGAL COUNSEL 52229 PACIFIC GAS & ELECTRIC 2/1/2023 71,870 CITY-WIDE ELECTRICITY 52223 EL CENTRO DE LIBERTAD 2/1/2023 34,985 CARES PROGRAM Over $30,000 6

City of Half Moon Bay Check Register - Summary HMB Page: 1 Check Issue Dates: 2/1/2023 - 2/28/2023 Mar 15, 2023 12:30PM Report Criteria: Report type: Summary Check.Type = "Calculated" Check Number Vendor Number Payee Check Issue Date Amount Description 52221 5526 CLEMENTINA HUERTA 02/01/2023 500.00 DEPOSIT REFUND 52222 4576 DONNA J. VAILLANCOURT 02/01/2023 1,500.00 FACILITATION/TRAINING SERVICES 52223 3673 EL CENTRO DE LIBERTAD 02/01/2023 34,984.91 JAN'23, CARES PROGRAM 52224 4398 ELS ARCHITECTURE & URBAN DESIGN 02/01/2023 3,300.00 JAN'23,CITY HALL RELOCATION STUDY 52225 5490 HDL COREN & CONE 02/01/2023 3,671.33 FY22/23 ACFR STATISTICAL PACKAGE 52226 3083 JOINT VENTURE SILICON VALLEY 02/01/2023 3,500.00 2023 SPONSERSHIP OF STATE OF THE VALLEY CONFERENCE 52227 3746 MALCOLM C SMITH 02/01/2023 247.50 JAN 23,, COMMUNICATION CONSULTANT 52228 5503 MIKE GERONIMO 02/01/2023 665.00 CLASS REFUND 52229 137 PACIFIC GAS & ELECTRIC 02/01/2023 71,870.17 TRAIN DEPOT 52230 137 PG&E 02/01/2023 7,988.99 555 KELLY ST 52231 4339 PLAN JPA 02/01/2023 7,305.19 GENERAL LIABILITY CLAIMS 52232 5403 ROBERT HALF 02/01/2023 3,270.00 TEMP EMPLOYEE W.Ngo/WEEK ENDING 01/27/23 52233 3131 ROBERT W. SMITH 02/01/2023 441.00 INSTRUCTOR PAYMENT- CCO 11/30/22-1/18/23 52234 216 SAN MATEO COUNTY SHERIFF'S OFFICE 02/01/2023 919,568.30 Q3, FY22/23 Less credits 52235 3085 SHUTE MIHALY & WEINBERGER LLP 02/01/2023 81,944.58 GENERAL MATTERS 52236 165 STRAWFLOWER ELECTRONICS 02/01/2023 96.09 MAINT SUPPLIES 52237 3519 SWCA INCORPORATED 02/01/2023 4,702.00 HWY1 NORTH SAFETY & OP IMPROVEMENTS RIPARIAN MITIGA 52238 4270 4LEAF INC. 02/09/2023 14,924.47 ON-CALL SERVICES 52239 3332 AMERICAN DEBRIS BOX SERVICE INC. 02/09/2023 1,025.88 FY22/23 PORTABLE RESTROOMS 52240 5527 AMY ARTAL 02/09/2023 100.00 DEPOSIT REFUND 52241 2407 ARAMARK 02/09/2023 276.47 MAINT SUPPLIES 52242 444 ASSOCIATION OF BAY AREA GOVERNMENTS 02/09/2023 696.54 LEVELIZED CHARGE NAT GAS 52243 5168 BLEYLE ELEVATOR, INC 02/09/2023 886.00 MAINT SERVICE 52244 5359 BLUEBEAM, INC. 02/09/2023 1,090.00 ANNUAL MAINTENANCE 52245 1925 CITY OF BURLINGAME 02/09/2023 4,730.64 DEC'23 SMCO BID 52246 2861 CODE PUBLISHING COMPANY 02/09/2023 70.50 MUNICIPAL CODE WEB UPDATE 52247 4542 COLLEEN LETTIRE 02/09/2023 111.29 HMB BAKERY/BREAKFEAST FOR EOC 52248 5318 COLUMN SOFTWARE, PBC 02/09/2023 1,534.50 PDP-22-054 52249 3643 CORODATA RECORDS MANAGEMENT INC 02/09/2023 332.79 RECORDS MANAGEMENT 52250 390 DFM ASSOCIATES 02/09/2023 151.28 CA ELECTIONS CODE 52251 5530 EMMA V. ALMARAZ 02/09/2023 500.00 DEPOSIT REFUND REQUEST FOR GRAND OAK 2/4/23 52252 3446 FLYERS ENERGY, LLC 02/09/2023 2,841.32 VEHICLE FUEL 52253 2564 HALF MOON BAY GRADING & PAVING INC. 02/09/2023 1,127.10 MAINT SUPPLIES 52254 5529 HAZEL JOANES 02/09/2023 257.00 PDP-21-010 52255 89 HMB COASTSIDE CHAMBER OF COMMERCE 02/09/2023 13,815.00 DEC'23 HMB CITY BID 52256 2444 HOME DEPOT CREDIT SERVICES 02/09/2023 43.73 MAINT SUPPLIES M = Manual Check, V = Void Check 7

City of Half Moon Bay Check Register - Summary HMB Page: 2 Check Issue Dates: 2/1/2023 - 2/28/2023 Mar 15, 2023 12:30PM Check Number Vendor Number Payee Check Issue Date Amount Description 52257 4267 IMPEC GROUP INC. 02/09/2023 17,356.00 FY22/23 JANITORIAL SERVICES 52258 3944 JESSICA BLAIR 02/09/2023 454.28 EMERGENCY HOTEL STAY 52259 5509 JESSICA CARLSON 02/09/2023 175.00 INSTRUCTOR PAYMENT 52260 4646 KENNETH STILES 02/09/2023 1,444.03 OFFICE DEPOT/1099 FORMS 52261 5517 LAURA CAMODECA 02/09/2023 1,232.00 Payment for Dog Training classes 52262 291 LAURIE BECKER 02/09/2023 737.10 INSTRUCTOR PAYMENT ZUMBA 52263 1206 MARK THOMAS & CO. INC. 02/09/2023 25,701.80 CHANGE ORDER 1, HWY1 NORTH SAFETY & OPERATIONAL IM 52264 3872 MUNICIPAL FINANCIAL SERVICES 02/09/2023 3,420.00 MID-POINT ASSESSMENT OF SEWER SERVICE RATES 52265 4464 MuniServices 02/09/2023 500.00 SUTA Q1 52266 3726 NICHOLAS TRANSLATIONS & INTERPRETATIONS 02/09/2023 523.00 TRANSLATION SERVICES 52267 4472 ON POINT LANGUAGE SOLUTIONS LLC 02/09/2023 6,367.11 TRANSLATION SERVICES 52268 5487 PABLO OROPEZA 02/09/2023 3,144.68 CATERING PROPOSAL 52269 137 PACIFIC GAS & ELECTRIC 02/09/2023 2,500.00 ENGINEERING ADVANCE 52270 3479 PARKEON INC 02/09/2023 56.00 MAINT SERVICE 52271 3956 PENINSULA MUNICIPAL ENGINEERING INC. 02/09/2023 23,086.00 CHANGE ORDER 3, PROJECT MANAGEMENT SERVICES FOR E 52272 4339 PLAN JPA 02/09/2023 1,974.00 GENERAL LIABILITY CLAIMS 52273 5531 PORSCHE DIGITAL INC 02/09/2023 200.00 DEPOSIT REFUND 52274 3951 PUBLIC PARKING ASSOCIATES INC 02/09/2023 547.00 MAINT SERVICE 52275 5403 ROBERT HALF 02/09/2023 6,232.59 TEMP EMPLOYEE LABATE/WEEK ENDING 02/03/2023 52276 708 SAN MATEO COUNTY NARCOTICS TASK FORCE 02/09/2023 14,372.00 FY22/23 NARCOTICS TASK FORCE CONTRIBUTION 52277 1392 SAN MATEO RESOURCE CONSERVATION DISTRIC 02/09/2023 184.00 CONSERVATION PROJECT MANAGER 52278 3757 SCHAAF & WHEELER 02/09/2023 3,500.00 AUG'22, PELICAN POINT GENERATOR REPLACEMENT 52279 129 SERVICE PRESS INC. 02/09/2023 114.04 OFFICE SUPPLIES 52280 5528 SOPHIA WAMBACH 02/09/2023 100.00 DEPOSIT REFUND 52281 3717 STERICYCLE SPECIALTY WASTE SOLUTIONS INC 02/09/2023 194.72 MAINT SERVICE 52282 5301 SUBURBAN PROPANE LP 02/09/2023 1,233.79 DISCOUNT PROPANE 52283 3519 SWCA INCORPORATED 02/09/2023 1,108.75 HWY1 SAFETY - NORTH PROJECT 52284 3519 SWCA INCORPORATED 02/09/2023 713.75 HWY1 SAFETY - NORTH PROJECT 52285 4487 THE HOME DEPOT PRO 02/09/2023 955.25 MAINT SUPPLIES 52286 3955 TOWNSEND PUBLIC AFFAIRS 02/09/2023 5,000.00 TOWNSEND PUBLIC AFFAIRS 52287 1497 TURBO DATA SYSTEMS 02/09/2023 533.52 CITATION PROCESSING 52288 4429 WESTERN EXTERMINATOR COMPANY 02/09/2023 1,207.42 FY22/23 EXTERMINATOR SERVICES 52289 5406 WICKMAN DEVELOPMENT AND CONSTRUCTION 02/09/2023 106,769.74 CARTER PARK IMPROVEMENTS PROJECT 52291 3923 WELLS FARGO 02/09/2023 17,082.46 RECONCILING CREDITS 52293 4270 4LEAF INC. 02/16/2023 36.00 FEB'23, ON-CALL SERVICES 52294 2022 ACC BUSINESS 02/16/2023 792.62 INTERNET SERVICE 52295 5532 ADELA VILLALOBOS 02/16/2023 500.00 DEPOSIT REFUND REUEST 52296 5493 ALENA JEAN 02/16/2023 3,112.50 FLOWERS FOR VIGIL/DINNER 52297 3954 ALTA PLANNING & DESIGN 02/16/2023 1,301.50 CHANGE ORDER 3, PACIFIC COAST BIKEWAY CONNECTIVITY N 52298 18 ANDREINI BROTHERS INC. 02/16/2023 27,858.75 FY22/23 ON-CALL SIDEWALK REPLACEMENT M = Manual Check, V = Void Check 8

City of Half Moon Bay Check Register - Summary HMB Page: 3 Check Issue Dates: 2/1/2023 - 2/28/2023 Mar 15, 2023 12:30PM Check Number Vendor Number Payee Check Issue Date Amount Description 52299 1046 APPLIED DEVELOPMENT ECONOMICS INC. 02/16/2023 809.24 MEASURE D ANALYSIS 52300 4115 BIG BELLY SOLAR INC 02/16/2023 283.92 DEC '23, SMART TRASH RECEPTACLES 52301 1826 CA DEPT OF JUSTICE 02/16/2023 96.00 FINGERPRINT APPS 52302 32 CA DEPT OF TRANSPORTION 02/16/2023 6,208.50 SIGNALS & LIGHTING 52303 4300 CALNET3 02/16/2023 48.28 PHONE SERVICE 52304 5223 CAPITAL ONE TRADE CREDIT 02/16/2023 3,732.64 MAINT SUPPLIES 52305 4193 CASELLE INC. 02/16/2023 3,695.00 ERP CONTRACT SUPPORT & MAINTENANCE 52306 2859 CLAUDIA MARSHALL 02/16/2023 945.00 INSTRUCTOR PAYMENT, JANUARY 23 52307 51 COASTSIDE COUNTY WATER DISTRICT 02/16/2023 3,804.13 LIFT STATION FAIRWAY 52308 4542 COLLEEN LETTIRE 02/16/2023 91.90 TABLECLOTHES FOR VICTIM REMEMBRANCE DINNER 52309 5515 CRUZIO INTERNET 02/16/2023 19.95 INTERNET SERVICE 52310 2941 CSG CONSULTANTS INC. 02/16/2023 6,107.50 FEB'23, NPDES STORMWATER SERVICES 52311 202 FEDEX 02/16/2023 49.70 SHIPPING SERVICE 52312 2668 GAYTON ARRIGOTTI 02/16/2023 346.50 INSTRUCTOR PAYMENT 02/11/23 52313 70 GRAINGER 02/16/2023 676.38 MAINT SUPPLIES 52314 1853 HDL SOFTWARE LLC 02/16/2023 3,671.33 TOT AND BUSINESS LICENSE MANAGEMENT 52315 3429 HUE & CRY 02/16/2023 641.62 SECURITY SERVICE 52316 5444 JOYA CUNHA 02/16/2023 2,000.00 TEMPORARY CONSTRUCTION EASEMENT 52317 108 LEAGUE OF CALIFORNIA CITIES 02/16/2023 6,546.00 MEMBERSHIP DUES 52318 4293 LOCKWORKS UNLIMINTED INC 02/16/2023 661.24 MAINT SERVICE 52319 4028 LORAL LANDSCAPING INC. 02/16/2023 2,000.00 FY22/23 MEDIAN MAINTENANCE 52320 4489 MTA PARTS INC. 02/16/2023 212.68 VEHICLE PARTS 52321 457 ODP BUSINESS SOLUTIONS, LLC 02/16/2023 111.30 SUPPLIES 52322 5020 QUADIENT FINANCE USA, INC 02/16/2023 425.67 POSTAGE 52323 5403 ROBERT HALF 02/16/2023 3,837.66 TEMP EMPLOYEE S.Vivika /WEEK ENDING 02/10/23 52324 217 SAN MATEO COUNTY INFORMATION SVCS. 02/16/2023 82.25 MICROWAVE SERVICE 52325 2797 SAN MATEO DAILY JOURNAL 02/16/2023 828.00 MESURE D ANALYSIS 52326 159 SEWER AUTHORITY MID-COASTSIDE 02/16/2023 427,146.00 FEB'23 , SEWER AUTHORITY MID-COASTSIDE OPERATIONS AN 52327 5224 SMCU COMMUNITY FUND 02/16/2023 10,000.00 COASTSIDE VICTIMS FUND 52328 1760 STEPFORD 02/16/2023 4,674.00 FY22/23 IT SERVICES UNTIL DECEMBER 2022 52329 5536 ALTAMIRANO, GABRIELA 02/22/2023 670.50 DEPOSIT REFUND REQUEST 52330 5372 CARTWRIGHT DESIGN STUDIO 02/22/2023 1,395.00 DESIGN SERVICE 52331 5402 CDW GOVERNMENT 02/22/2023 1,153.00 IT SUPPLIES 52332 4542 COLLEEN LETTIRE 02/22/2023 60.54 PEETS/COFFE FOR EOC 52333 3404 ECS IMAGING INC. 02/22/2023 18,950.00 LASERFICHE RENEWAL 52334 1283 KATHY OLER 02/22/2023 2,226.67 MAR' 23, TEMPORARY CITY PARKING LOT RENTAL 52335 5369 KIS 02/22/2023 1,777.00 OUTDOOR 4K NETWORK CAMERA 52336 108 LEAGUE OF CALIFORNIA CITIES 02/22/2023 300.00 MEMBERSHIP DUES 52337 3069 MANAGED HEALTH NETWORK 02/22/2023 304.00 EAP 52338 5403 ROBERT HALF 02/22/2023 6,735.00 TEMP EMPLOYEE W.Ngo/WEEK ENDING 01/20/2023 M = Manual Check, V = Void Check 9

City of Half Moon Bay Check Register - Summary HMB Page: 4 Check Issue Dates: 2/1/2023 - 2/28/2023 Mar 15, 2023 12:30PM Check Number Vendor Number Payee Check Issue Date Amount Description 52339 5535 SARABIA, ERIBERTO 02/22/2023 500.00 DEPOSIT REFUND REQUEST 52340 3922 SCOTT MCVICKER 02/22/2023 3,360.00 MAR'23 ANNEX RENT 52341 233 SMCPCSA 02/22/2023 1,000.00 MEMBERSHIP FEES 52371 3923 WELLS FARGO 02/04/2023 15,094.43 AMAZON/SUPPLIES Grand Totals: 120 2,015,669.50 Report Criteria: Report type: Summary Check.Type = "Calculated" M = Manual Check, V = Void Check 10

Page 1 of 2 BUSINESS OF THE COUNCIL OF THE CITY OF HALF MOON BAY AGENDA REPORT For meeting of: March 21, 2023 TO: Honorable Mayor and City Council VIA: Mathew Chidester, City Manager FROM: Maz Bozorginia, Public Works Director/City Engineer Denice Hutten, Associate Engineer TITLE: PROFESSIONAL SERVICES AGREEMENT FOR ON-CALL GEOMORPHOLOGY SERVICES _____________________________________________________________________________ RECOMMENDATION: Adopt a Resolution authorizing the City Manager to award and execute a Professional Services Agreement (PSA) for On-Call Professional Geomorphology Services through June 30, 2024 to the most qualified consultant, Waterways Consulting, Inc., of Santa Cruz, CA, in an amount not- to-exceed $50,000. FISCAL IMPACT: The FY 2022-23 budget has allocated sufficient funds for this contract award, potential contract changes, and project management from the Green Infrastructure and Storm Water Program (CIP No. 563). STRATEGIC ELEMENT: This action supports the Infrastructure and Environment, Healthy Communities and Public Safety Elements of the Strategic Plan. BACKGROUND: The City maintains approximately 11 miles of stormwater infrastructure and conducts annual routine maintenance, under an agreement with the Department of Fish and Wildlife. Five major creeks pass through city boundaries conveying stormwater ultimately to the Pacific Ocean— Arroyo de en Medio, Frenchmen’s Creek, Pilarcitos Creek, Arroyo Leon, and Arroyo Canada Verde all conveying flows from the vast watershed surrounding the City. Several private watercourses also are within the City limits, including channels that flow from the east, crossing Highway 1, and through various private properties. Due to the impacts of climate change, bluff erosion, sea-level rise, development and other factors; the stormwater infrastructure continues to be a challenging and expensive issue to manage. Although there are some localized challenges related to portions of the enclosed or 11

Page 2 of 2 “piped” network, the larger problems persist in open channel creeks, streams and ditches. The City’s approach to stormwater management is to consider long-term natural, geomorphic watershed review to work with the application of engineered principles. On December 9, 2022, the City posted a Request for Qualifications for On-Call Geomorphology Services proposals from qualified firms. The scope of work includes review and support to the City on capital projects and master planning, including modeling and analysis of bank erosion, bed scour, sediment transport, and sediment deposition among others. On January 12, 2023, the City received Statements of Qualifications from four well-qualified firms. On February 2, 2023, a City selection committee conducted interviews with each of the proposing firms. After careful consideration, Waterways Consulting Inc. was determined to be the most qualified and responsive professional. DISCUSSION: Waterways Consulting, Inc. is a small, full-service, owner-operated engineering and environmental consulting firm with offices in Santa Cruz, and Portland. Waterways was formed with the specific mission of fully integrating the science of geomorphology with practical engineering principles to improve the management and function of surface water systems and habitats. Waterways has contributed to projects in the Pecadero-Butano watershed and is currently working with the San Mateo County Resource Conservation District to provide an assessment and management plan at lower Pescadero Creek, including habitat restoration and flood control management. Waterways has provided geomorphic assessments for a number of municipalities for watercourse repair and restoration projects. City staff recommends the City Council to adopt a Resolution authorizing the City Manager to award and execute a Professional Services Agreement (PSA) for On-call Geomorphology Services to Waterways Consulting, Inc., in and amount not to exceed $50,000. ATTACHMENTS: 1. Resolution 2. Waterways Consulting, Inc. Rate Schedule 12

Resolution No. C-2023-XX A RESOLUTION OF THE CITY COUNCIL OF THE CITY OF HALF MOON BAY AUTHORIZING THE CITY MANAGER TO AWARD AND EXECUTE A PROFESSIONAL SERVICES AGREEMENT FOR ON-CALL GEOMORPHOLOGY SERVICES WHEREAS, the City seeks professionals to support its approach to stormwater management to consider long-term natural, geomorphic watershed review to work in conjunction with application of engineered principles; and, WHEREAS, the City has invited and opened four (4) Statements of Qualifications at the scheduled time, date and place as set forth in the Request for Qualifications for On-Call Geomorphology Services; and, WHEREAS, the most qualified and responsive consultant was determined to be Waterways Consulting, Inc., of Santa Cruz, California; and, WHEREAS, sufficient funds are allocated in the City approved Capital Improvement Program under the Green Infrastructure and Stormwater Management Program (CIP No. 563) for Fiscal Year 2022-2023 for the recommended contract award. NOW, THEREFORE, BE IT RESOLVED THAT the City Council of the City of Half Moon Bay hereby accepts all Statements of Qualification and authorizes the City Manager to award and execute a Professional Services Agreement for On-Call Geomorphology Services to the most qualified and responsive consultant, Waterways Consulting, Inc., of Santa Cruz, California, in and amount not-to-exceed $50,0000. ***************************************************************** I, the undersigned, hereby certify that the foregoing Resolution was duly passed and adopted on the 21 st day of March 2023 by the City Council of Half Moon Bay by the following vote: AYES, Councilmembers: NOES, Councilmembers: ABSENT, Councilmembers: ABSTAIN, Councilmembers: ATTEST: APPROVED: ___________________________ _____________________________ Jessica Blair, City Clerk Deborah Penrose, Mayor 13

Ecological Restoration Design ~ Civil Engineering ~ Natural Resource Management 509A Swift St, Santa Cruz, CA 95060, Ph: 831‐421‐9291 // 1020 SW Taylor St., Ste. 380, OR 97205, Ph: 503‐227‐5979 Client______ / Waterways ______ TABLE 3 WATERWAYS CONSULTING, INC. Hourly Fee and Reimbursable Expense Schedule Charges for Standard Services The charges for services performed by the Waterways Professional Staff and other Waterways personnel shall be calculated on the basis of the number of hours worked on behalf of CLIENT at the hourly rate as of that staff position as set forth below, plus travel time and authorized overtime. Waterways Professional Staff – VALID THROUGH JUNE 30 th , 2023 Description Hourly Rate Expert Witness $375.00 SCIENCE STAFF Principal Hydrologist/Geomorphologist $175.00 Senior Hydrologist/Geomorphologist $150.00 Science Technician $120.00 ENGINEERING STAFF Principal Engineer $190.00 Senior Engineer $165.00 Staff Engineer $130.00 CAD Drafter/Junior Engineer $115.00 Survey Team 1 Person $185.00 2 Person $295.00 Survey Team – Prevailing Wage 1 Person $215.00 2 Person $325.00 3 Person $400.00 Non‐technical Staff $ 70.00 Charges for non‐technical staff will be made for services specifically performed on CLIENT’S Project. Overtime, authorized by CLIENT, shall be charged only for non‐exempt employees and calculated at the employee's listed rate multiplied by the factor required by applicable Labor Laws. Charges for Reimbursable Expenses Waterways shall be reimbursed for all out‐of‐pocket expenses incurred for the benefit of the CLIENT and/or the Project including the following: A. Consultants: Consultants are independent professional persons or firms, hired with the approval of CLIENT to render specialized services. Waterways shall be paid the actual cost of consultant's fee plus (10%) ten percent. B. Testing Laboratories: If services of a testing laboratory are required, Waterways may retain these with the approval of CLIENT, and will be reimbursed for costs plus (10%) ten percent. 14

Ecological Restoration Design ~ Civil Engineering ~ Natural Resource Management Client ______ / Waterways ______ Travel: Travel charges shall be consist of the actual cost of transportation by air, sea, rail and other surface means as provided by regularly scheduled carriers, plus (10%) ten percent. Air travel shall be business class where available and otherwise economy class. The use of company and personal vehicles shall be billed at the then current IRS mileage reimbursement rate, currently $0.625 per mile. Subsistence: Subsistence charges shall include the actual cost plus (10%) ten percent of meals, lodging and local transportation, including car rental costs incurred whenever Waterways employees are required to be away from their normal place of business. In lieu of these actual costs plus ten percent (10%), Waterways and CLIENT may agree on a lump sum per diem charge to cover subsistence in writing. Photocopies: 8.5x11,bw $ 0.25 8.5x11, color $ 0.75 11x17, bw $ 0.50 11x17, color $ 1.25 24x36, bw $ 3.50 24x36, color $ 6.00 Binding: Services for spiral binding of reports and other documents will be billed at $60.00 per document, minimum. Other Reimbursable Costs/Expenses Waterways shall be paid the actual cost plus ten percent of all other out‐of‐pocket expenses, including any applicable sales, use and city taxes, as well as miscellaneous outside services and facilities, equipment rental, duplicating and printing, long distance telephone calls, telexes and telegrams, postage and similar expenses incurred in connection with services performed for CLIENT. Corporate Policy Waterways has a corporate policy of reviewing compensation semiannually and adjusting salaries as of e.g. [Jan 1 and July 1] as appropriate. Waterways will provide CLIENT with written notice of any changes in rates. 15

Page 1 of 3 BUSINESS OF THE COUNCIL OF THE CITY OF HALF MOON BAY AGENDA REPORT For meeting of: March 21, 2023 TO: Honorable Mayor and City Council VIA: Matthew Chidester, City Manager FROM: Maziar Bozorginia, Public Works Director/City Engineer Veronika Vostinak, Public Works and Sustainability Programs Manager TITLE: ACCEPTANCE OF THE MIRAMONTES POINT SEA LEVEL RISE VULNERABILITY AND FISCAL IMPACT ASSESSMENT RECOMMENDATION: By resolution, accept the Miramontes Point Sea Level Vulnerability and Fiscal Impact Assessment. FISCAL IMPACT: There is no fiscal impact associated with this action. STRATEGIC ELEMENT: This action supports all Elements of the Strategic Plan. BACKGROUND: In April 2015, the City successfully secured a grant from the Ocean Protection Council to conduct a sea level rise (SLR) vulnerability assessment. The assessment addressed flooding, tsunami, and erosion risks exacerbated by sea level rise from the north end of the City limits to the north end of the Ocean Colony Golf Courses, at which point there was no longer USGS data available. This assessment was adopted by the City Council in April 2016. Since its completion, additional data for the area of Miramontes Point in southern Half Moon Bay to the south end of the city limits has become available. In 2019, the County of San Mateo (County) began work on the South Coast Sea Level Rise Risk and Solutions Study, continuing south from Ocean Colony area to the Santa Cruz/San Mateo County line (South County). In April 2021, the City’s comprehensive update to the Local Coastal Land Use Plan (LUP) was certified by the Coastal Commission. The updated LUP incorporates policies about climate 16

Page 2 of 3 change and sea level rise, such as Policy 7-11 that calls for the City to use best available sea level rise science to periodically assess vulnerable assets and develop adaptation strategies. While the County incorporated this area into their South County Study, staff believed the unique nature of the properties and location within the City limits (e.g. Coastal Trail, Ocean Colony Golf Courses and Ritz Carlton) warranted a more tailored approach. Following release of the South County study, City staff reached out to the Integral Consulting, Inc. (Integral), the County’s consultant, to discuss expanding assessment and adaptation in the Ocean Colony area. In November 2021, the City executed a contract with Integral under the City Manager’s authority to complete Phase 1 of a Sea Level Rise Vulnerability and Fiscal Impact Assessment (SLR Assessment). This work resulted in the consolidation of the entire City coastline into a single assessment. This allowed the County to proceed with South County work absent this small portion of the City. The current assessment was completed in two phases. Phase 1 included a vulnerability and economic impact assessment of the aforementioned area. In December 2021, City and County staff provided an update to the City Council on the work being done by the County’s South County study and the City’s SLR Assessment and requested direction on Phase 2 of the SLR Assessment project. On February 1, 2022, the City Council approved an amendment request to fund and proceed with Phase 2 of the project. Phase 2 included topographic and image data collection of the area, evaluation of adaption alternatives, and public outreach. In August 2022, the Council received a presentation from Integral and provided feedback on the draft SLR Assessment. Staff received a comment letter from Ocean Colony Partners (OCP) regarding the draft assessment on September 8, 2022 (Attachment 1). DISCUSSION: The Miramontes Point Sea Level Rise Vulnerability and Fiscal Impact Assessment focuses on the southern end of the City limits, encompassing the approximate one mile stretch of coast extending from the southerly City limit to just south of Redondo Beach Road. Revenue generated from the Transient Occupancy Tax (TOT), sales tax, and property tax in this area accounts for a substantial percentage of the City’s entire budget. This study area includes a popular section of the California Coastal Trail, the Ritz Carlton Hotel, and two privately owned (open to public) golf courses (Old Course and Ocean Course). The assessment was undertaken in two distinct phases. Phase 1 is an historical coastal bluff retreat analysis, using historical aerial photography, more recent lidar digital elevation models (DEMs), and a new photographic survey collected via drone in the winter of 2022 to understand the processes of bluff retreat and to generate rates of historical change for future vulnerability modeling. Cliff toe and bluff top edges were automatically extracted from the DEM surfaces using the U.S. Geological Survey (USGS) Cliff Delineation Tool and visually interpreted from the older aerial photography. The study then used the USGS Digital Shoreline Analysis System to measure rates and amount of change of the cliff toe and bluff top edge positions. The model accelerates historical rates of bluff retreat using future total water levels and generates exceedance curves for when the water levels will increasingly exceed both the cliff toe and the 17

Page 3 of 3 contact between the geologic units. The increase in the area beneath the exceedance curve through time is a proxy for accelerated rates of bluff retreat. The estimated future bluff top positions are then translated to maps that show the bands of future bluff position, and also evaluates what assets will be impacted in which period (2020–2040, 2040–2070, and 2070– 2100). The study area was divided into six sections, extending from Section 1 in the north to Section 6 in the south. The report indicated that rates of erosion vary substantially along the study area, with the highest retreat rates occurring in the three northern sections, including Miramontes Point (near the most southerly portion of the Ritz-Carlton Hotel). Phase 2 included a coastal bluff retreat vulnerability assessment that estimated what infrastructure would be at risk or lost due to bluff retreat with sea level rise for 2040, 2070, and 2100. The model used in the assessment accelerates historical rates of bluff retreat using future total water levels and generates exceedance curves for when the water levels will increasingly exceed both the cliff toe and the contact between the geologic units. The increase in the area beneath the exceedance curve through time is a proxy for accelerated rates of bluff retreat. The estimated future bluff top positions are then translated to maps that show the bands of future bluff position, and evaluates what assets will be impacted in which period (2020–2040, 2040– 2070, and 2070–2100). Overall, the study found a rapid acceleration of bluff retreat, increasing through time, with the highest retreat rates in the northern four sections of the study area. Projections indicate that impacted infrastructure includes features associated with both golf courses, the Coastal Trail, the Ritz-Carlton Hotel and associated property amenities. Assets and infrastructure concentrated at Miramontes Point will experience the greatest impacts. Additionally, the report outlines an estimate of the current economic value and the most feasible adaptation strategies for at-risk assets in the study area. Due to coastal regulations in California, and given the remoteness of the area, there are limited adaptation strategies available in the traditional, structural sense such as seawalls or riprap, and the strategies outlined in the assessment may slow bluff erosion but will not be sufficient to stop coastal retreat. As such, the forecasted bluff position estimates for 2040, 2070, and 2100 provide managers, decision makers, and property owners with the tools needed to understand what will likely need to be relocated, realigned, or removed, and what time horizons these actions will need to begin planning and implemented by to avoid these future erosion hazards. In response to the comments provided by OCP, the assessment was updated to include a more accurate timeline of riprap removal. Additional information was also included to better reflect OCP’s improvements and irrigation practices as well as OCP’s observations of erosion rates monitored from 2006 to 2022. ATTACHMENTS: 1. Comment letter from Ocean Colony Partners 2. City of Half Moon Bay, Miramontes Point Sea Level Rise Vulnerability and Fiscal Impact Assessment 3. Resolution 18

OCP Comments on Integral Sea Level Rise Vulnerability and Fiscal Impact Assessment, dated August 10, 2022 (September 8, 2022) Ocean Colony Partners, LLC (“OCP”), owner of the Half Moon Bay Golf Links, submits the following comments to the above-referenced sea level rise assessment (“Report”). OCP is pleased to review and comment on the Report and applauds the City of Half Moon Bay (“City”) for its proactive role in addressing sea level rise and potential consequences. OCP lacks the expertise or qualifications to comment on the scientific methodologies, assumptions and extrapolations utilized in the Report, or to assess whether the sea rise guidelines selected by Integral reflect current expert consensus or how they compare to any competing/alternative guidelines. Therefore, OCP has no comment on the calculations and projections in the Report regarding sea rise, increased wave action, sand displacement, bluff stability/erosion or other condition changes. Similarly, OCP make no comments on the economic impacts of future sea rise on the City, golf courses, Ritz hotel or any recreational facilities/amenities such as the coastal trail and beach staircase. A. 2006 Riprap Removal And Other 18th Hole Work Contrary to the Report, the vast majority of the Old Course 18th hole riprap was removed in 2006, not 2000, 2004, 2007 or 2008. At the time of that removal in 2006, OCP also: (i) removed the original 1973 concrete and metal slab structures under the 18th hole green and tee areas; (ii) relocated the 18th green landward by over 30’ and enlarged it so that it could be reduced if additional bluff erosion occurred and further “retreat” was necessary; (iii) moved the 18th hole tees landward by approximately 25’ to accommodate future bluff erosion; (iv) regraded bluff top areas seaward of the 18th green and tees to create a subtle “berm” to help eliminate direct bluff top irrigation and storm water runoff; (v) rerouted all surface and underground drainage systems landward from the 18th green and tees and redirected drainage to the 18th hole natural barranca and outfall; (vi) eliminated irrigation lines/sprinkler heads along several portions of the 18th hole bluff top; (vii) retained Go Native to remove areas of ice plant and plant extensive native vegetation on the top and face of the bluff to the extent possible; and (viii) erected split-rail wood fencing seaward of the 18th hole green and tees as a safety measure and to deter golfers or coastal visitors from entering those bluff top areas. B. Post 2006 Riprap Removal Erosion The Report (p. 24) suggests the riprap placed in 1998-2004 slowed erosion along the 18th green bluff. OCP did not find that to be the case. In fact, because of increased and redirected wave energy and significant sand displacement, the bluff face on each side of 19

the riprap deteriorated at a more rapid rate and contributed to several episodic incidents of bluff top failure during those years. Similarly, the Report’s statement that “erosion appears to have accelerated after the riprap was removed” (p. 24) is also inaccurate. As noted in paragraph C below, the rate of bluff top erosion at the 18th hole green area (north of Hot Spot 3) between 2006 (when the riprap was fully removed) and 2022 has not exceeded 5-6” in 16 years (0.03125 feet per year). That rate of bluff top erosion is much less than identified in the Report (p. 24), and far less the historic erosion reported in the 2002 BAGG study (45’ between 1963 and 1998; average 1.286 feet per year) or the 2018 AECOM study reporting, 45-55’ of bluff erosion between 1973 and 2018 (average approximately 1.0 foot per year). It is important to understand that the BAGG study (commissioned by the then golf course operators to support its sea wall/riprap Coastal Development Permit application), primarily focused on Hot Spot 3, and the AECOM study focused on Hot Spot 4 (see pp. 24-25, Figure # 2-17). As can be seen in Figure 2- 16 (c) those two hot spots are actually south of the 18th green area, have not benefitted from the extensive 18th hole grading, drainage and irrigation mitigations instituted in 2006, appear to be areas with ongoing hotel surface irrigation and bluff top drainage runoff, enjoy less of a “cushioning” beach area at the cliff base, show much more ground water intrusion along the cliff base (assuming Figure 2-5 actually reflects ground water), have less rock outcroppings, and have a different orientation than the 18th green. C. Old Course 18th Hole Green and Tee Bluff Top Erosion Since 2006 OCP monitors the bluff top erosion adjacent to the 18th hole green and tees on a regular semi-annual basis. Since the 2006 riprap removal and other work, OCP’s records show the bluff top at the 18th green area has eroded approximately 5-6” in 16 years, and erosion at the 18th tee area has eroded 6-7” in 16 years. It should be noted that the “fence erosion” shown in Figure 2-8 (c) is a 10-12’ area above and south of the 18th green complex at the property boundary with the hotel. OCP did no mitigation work in that location, and does not control the irrigation or drainage runoff in that area. D. Old 1973 Hotel Piers, Grade Beams and Slab The report correctly notes that the old hotel piers, grade beams and slab were constructed at Miramontes Point around 1973. While the report also correctly indicates that several of those piers (5-7) were removed in 2018 (p. 36, Figure 2-30) and that a few are still exposed (Figure 2-31), the report does not discuss the remaining piers, grade beams and slab foundation that may still be unexposed and underground beneath the seaward hotel landscaping, coastal trail and hotel improvements. We understand that the original 1973 hotel foundation may have included upwards of 20 deep piers with connecting grade beams and/or slab, and that aerial photographs and original hotel plans show those improvements. We are unaware of whether any of those piers, grade beams or slab components were removed during the Ritz hotel construction in the late 1990s, or what 20

impact they are having (or may have in the future) on bluff stability and erosion, particularly given the projected sea rise, increased wave action and sand displacement at this critical “hot spot”. When OCP elected in 2006 to remove the concrete slab and metal structures under the 18th hole green and tees, it was advised by its engineering consultants that the significant weight of such structures at the bluff top area would contribute to and accelerate bluff instability and erosion. The removed 18th hole concrete assemblies were de minimus in comparison to the size, weight and scope of the old hotel foundation complex. E. Coastal Trail Realignment Throughout the Report, there are numerous discussions of the near-term and long-term impact of sea rise and bluff erosion on the coastal trail and the likely need for it to be relocated landward and maintained. We agree that over time, portions of the existing coastal trail on the Ocean Course and Ritz properties may be lost or impacted. The report suggests in several sections (e.g., see p. 75-regulatory requirements/permits require the golf course to maintain the coastal trail and public access) that the golf course would be required to relocate and maintain the coastal trail even if it would subsume portions of the golf course property. That assertion is inconsistent with the coastal trail easement dedication history, the permit conditions and applicable law. It should be removed from the Report, clarified or legally supported. The applicable Coastal Commission Permit (1-94-04; 12/13/94) for the Ocean Course in Section 3 required the golf course to construct and maintain specified public access improvements until such time as a public entity accepts any offer of dedication. With respect to the coastal trail all along the 16th, 17th and 18th holes of the Ocean Course, and around the hotel, an Offer of Dedication was recorded on 2/27/96 (Doc# 96022123) and on 1/22/99 (Doc# 99-011996), and fully accepted by the City of Half Moon Bay on 7/2/99 (Doc# 99-187000). Since those dedication acceptances, the City, not OCP or the Ritz, has been responsible for maintenance, repair, improvement and public access for the coastal trail. Additionally, in connection with Permit 1-94-04 and the Offer of Dedication a defined and specific easement area for the subject coastal trail was designated, surveyed and recorded. In neither the permit, the recorded easement nor any of the dedication documents is there any requirement whatsoever for relocating the coastal trail to other locations in the event of loss or destruction because of bluff erosion or other natural causes. And finally, it appears California law provides that an easement and easement use is terminated if the subject land (or burdened tenement) is destroyed. Notwithstanding the permit/legal issues that may be involved in relocation of the coastal trail because of bluff erosion, OCP is prepared to cooperate reasonably with the City and other agencies if minor trail relocations become necessary provided they did not adversely impact the existing golf course layout and operations. As noted in paragraph F below, OCP has investigated the possibility of green, tee and golf hole redesigns and 21

reorientation due to future bluff top erosion. In most locations, OCP believes those changes, if necessary, could be accomplished and could accommodate some limited degree of coastal trail realignment. However, in some areas it would not be feasible (from a financial, design and operational standpoint) if the changes would involve significant relocation of portions of the coastal trail into fairways or close to greens and tees. In those cases, other options would need to be considered for the coastal trail. F. Future Golf Course Design Changes and Reconfigurations Over the past several years, OCP has investigated potential sea rise issues and future bluff erosion, and has outlined possible golf course design and reconfiguration changes that may become necessary. The potential impacted areas primarily involve the Old Course 18th hole, and Ocean Course 16th, 17th, and 18th holes. With respect to the Old Course 18th hole; (i) the green is large enough to be reduced on its seaward side by upwards of 25’ and the right greenside bunker eliminated; (ii) the tees can easily be moved landward by up to 40’ and the adjacent cart path relocated; and (iii) future fairway erosion at Hot Spot #1 would not significantly affect golf play off the tee, but Hot Spot #2 could, with substantial future erosion, require narrowing of the fairway or a redesign landward. In terms of the Ocean Course 16th and 18th holes, the green, tees and fairways could be redesigned and relocated (or the 18th hole shortened or tee moved to north of Canada Verde Creek) if necessary, but only minor coastal trail relocations would be possible in several areas (Hot Spots # 5-7; and Undercut #2 and 3) without significant impacts to the golf course. Finally, the Ocean Course 17th hole presents the most difficultly at the green and some of the tee areas if there was future major bluff erosion in those areas. While some landward relocation is possible, any significant bluff erosion would likely require eliminating the hole and rebuilding another hole in an alterative location on the golf course. The existing coastal trail would also be threatened. G. Irrigation, Ground Water and Drainage Comments The Report states that extensive irrigation and runoff from the golf course and hotel are causing vegetation growth along the basal unit (p. 11; Figure 2-5) and high ground water levels. The Report also claims that “through year-round irrigation of the golf courses, there has been increased infiltration to the substrate” and “weakening the bluff-forming material and increasing pore pressures, which drives failures (p. 36)”. Although, OCP is unaware of the hotel’s irrigation program or drainage system along the bluff tops, the golf course does not irrigate extensively in those areas on its property. In fact, the two locations noted in Figure 2-5 are almost exclusively below the hotel property. Furthermore, the Report seems to lack any reference to soil borings, or ground water investigations that would identify the existence of ground water or its levels in these areas. Given the soil composition of the golf course, the golf course’s current reduced irrigation scope, timing and locations (40% reduction since 2008), and OCP’s 22

history with extensive excavations, remodeling and deep earth work, we are doubtful that OCP’s current irrigation has contributed to groundwater penetration of the bluff base. And finally, we can find nothing in the Report that substantiates that during the post golf course development and corresponding irrigation periods (Old Course 1973 and Ocean Course 1995), average annual bluff top erosion rates exceeded those from 1931/2 – 1973/1995 when there was no golf course development in the subject areas. Interesting enough, except for Miramontes Point and a few portions of Manhattan Beach, Figures 2-11, 2-16, 2-21, 2-24 and 2-29 seem to indicate that there has been minimal change, if any, in bluff top erosion along most areas of the golf courses from 1931/2 – 1973/1995 compared to the post development period of 1973/1995-2022. This would seem to call into question the Report’s conjecture that golf course irrigation is a significant “culprit” with respect to bluff instability and erosion. Indeed, the Report itself also acknowledges that comparison of historical erosion rates is difficult for a host of reasons (p. 13) and in several sections it notes that little bluff top erosion has occurred in many areas during these years. It should also be recognized that impacts resulting from annual rainfall, non- irrigation runoff, storm drainage from large areas east of Highway 1 though the Ocean Colony storm drainage system and golf course ponds, and other potentially contributing factors are not sufficiently mentioned or analyzed. 23

City of Half Moon Bay, Miramontes Point Sea Level Rise Vulnerability and Fiscal Impact Assessment Photo: Integral Consulting, 2022 Prepared by 200 Washington Street Suite 201 Santa Cruz, CA 95060 March 21, 2023 24

Miramontes Point Sea Level Rise Vulnerability and Fiscal Impact Assessment August 2022 Integral Consulting Inc. ii Normal CONTENTS ACKNOWLEDGEMENTS .......................................................................................................................iv List of Figures ............................................................................................................................................. v List of Tables .............................................................................................................................................. ix Acronyms, Abbreviations, and Definitions ............................................................................................ x Disclaimer .................................................................................................................................................. xi Executive Summary .................................................................................................................................xii 1 INTRODUCTION .............................................................................................................................. 1 Purpose of this Study ............................................................................................................................ 1 Study Area .............................................................................................................................................. 1 2 COASTAL PROCESSES AND HAZARDS..................................................................................... 5 2.1 Waves........................................................................................................................................... 5 2.2 Tides and Water Level Data ..................................................................................................... 8 2.3 Sea Level Rise ............................................................................................................................. 9 2.4 Coastal Erosion ......................................................................................................................... 10 2.5 Geology and Geomorphology ................................................................................................ 11 2.6 Historical Erosion Section Overview .................................................................................... 12 2.6.1 Section 1. Redondo Beach to Three Rocks Beach ......................................................... 17 2.6.2 Section 2. Three Rocks Beach to Miramontes Point .................................................... 21 2.6.3 Section 3. Miramontes Point to Manhattan Beach North ........................................... 26 2.6.4 Section 4. Manhattan Beach North to Cañada Verde Creek ...................................... 29 2.6.5 Section 5. Manhattan Beach South ................................................................................. 32 2.6.6 Section 6. Manhattan Beach South to HMB City Line ................................................ 34 2.7 Coastal Armoring and Anthropogenic Terrace Changes ................................................... 37 3 METHODOLOGY AND APPROACH ......................................................................................... 38 3.1 Shore Sections and Subsection Block Delineation ............................................................... 38 3.2 Beach and Cliff Feature Delineation ...................................................................................... 38 3.3 Rate of Sea Level Rise .............................................................................................................. 41 3.4 Nearshore Wave, Total Water Levels, and Exceedance Curve Calculations................... 41 25

Miramontes Point Sea Level Rise Vulnerability and Fiscal Impact Assessment August 2022 Integral Consulting Inc. iii Normal 3.5 Erosion Rate Calculations ....................................................................................................... 45 3.6 Erosion Rate Results ................................................................................................................ 46 4 VULNERABILITY ASSESSMENT ................................................................................................. 49 4.1 Vulnerabilities .......................................................................................................................... 51 4.2 Vulnerability Maps .................................................................................................................. 53 5 ECONOMIC ASSESSMENT ........................................................................................................... 63 6 ADAPTATION PLANNING .......................................................................................................... 78 6.1 Protect ........................................................................................................................................ 79 6.2 Accommodate ........................................................................................................................... 80 6.3 Managed Retreat/Realignment/Relocation........................................................................... 81 6.4 Most Feasible Adaptation Approaches ................................................................................. 82 6.5 Adaptation Pathway ................................................................................................................ 83 6.5.1 Short Term (0 to 10 years) ............................................................................................... 85 6.5.2 Medium Term (10 to 30 years) ....................................................................................... 85 6.5.3 Long Term (30 + years) .................................................................................................... 85 7 KEY FINDINGS AND RECOMMENDATIONS ......................................................................... 85 References ................................................................................................................................................. 86 Appendix A............................................................................................................................................... 89 Modern Timeline of Coastal Development and Major Erosion Events........................................ 89 Appendix B. .............................................................................................................................................. 91 Digital Elevation Transect Model Comparison ............................................................................... 91 26

Miramontes Point Sea Level Rise Vulnerability and Fiscal Impact Assessment August 2022 Integral Consulting Inc. iv Normal ACKNOWLEDGEMENTS 1 Integral Consulting • David L. Revell, Ph.D., Project Director • Matt Jamieson, GIS & Project Manager • Cheryl Hapke, Ph.D., Coastal Scientist & Technical Advisor • Justin Cummings, Ph.D., Drone Surveying • Sam Blakesley, Coastal Scientist • Sam McWilliams, Coastal Scientist—Erosion Modeling • Tim Nelson, Ph.D., Coastal Scientist—Erosion Modeling • Dave Anning, Ph.D., Environmental Economist 2 City of Half Moon Bay • Veronika Vostinak, Sustainability Analyst • Jennifer Chong, Public Works Program Manager • John Doughty, Public Works Director • Ocoee Wilson, Assistant Planner 27

Miramontes Point Sea Level Rise Vulnerability and Fiscal Impact Assessment August 2022 Integral Consulting Inc. v Normal List of Figures Figure 1-1. Study area. ........................................................................................................................ 2 Figure 1-2. Drainage at Cañada Verde Creek. Source: Integral Consulting, 2022 ........................ 3 Figure 2-1. Conceptual diagram of the components of total water level. Image courtesy of Our Coast Our Future Web Platform (Point Blue and USGS 2021). ......................... 5 Figure 2-2. General wave patterns (degrees of azimuth) along the Central Coast (1993–2002) (Storlazzi and Wingfield 2005). ...................................................................................... 7 Figure 2-3. Relative sea level trend for the NOAA San Francisco tide gauge (Station 9414290) ............................................................................................................................................ 9 Figure 2-4. Study-specific rate of sea level rise from 2020 to 2100, based on OPC Guidance (2018). ............................................................................................................................... 10 Figure 2-5. Miramontes Point, with patches of vegetation evidence of high groundwater highlighted by the red ovals. Source: Integral Consulting, 2022 ............................... 11 Figure 2-6. Lower portion of cliff is comprised of the Purisima Formation, which forms a steeper slope in most locales as compared to the upper bluff marine terrace deposits. Source: Integral Consulting, 2022 .................................................................. 12 Figure 2-7. Site characteristics showing major points of interest and erosion features. .......... 14 Figure 2-8. Site characteristics showing field photos. ................................................................... 15 Figure 2-9. Site characteristics showing section-by-section geomorphic parameters. ............. 16 Figure 2-10. Section 1. Source: Kenneth & Gabrielle Adelman, 2019 ................................................ 17 Figure 2-11. Historical and modern aerial photographs from 1931 (A), 1965 (B), and 2022 (C) of Section 1, the northernmost section of the study area. The hatched areas in panels B a