835208drainaRville.pdf

City of Rockville Rockville, Maryland

REQUEST FOR PROPOSAL # 39-26

STORMWATER MANAGEMENT (SWM) FACILITY MAINTENANCE PROGRAM SUPPORT

Proposals Due by 2:00 P.M., September 18, 2026

ISSUED BY:

Lawrence Hall

Procurement Department City of Rockville, City Hall

111 Maryland Avenue Rockville, Maryland 20850

Phone: (240) 314-8436 Fax: (240) 314-8439

Any individual with a disability who would like to receive the information in this publication in another form may contact the ADA Coordinator at 240-314-8100, TDD 240-314-8137

MFD-V Outreach Program It is the intent of the City of Rockville to increase opportunities for minority, female, disabled, or veteran (MFD-V) owned businesses to compete effectively at supplying goods, equipment, and services to the City, within the constraints of statutory purchasing requirements, departmental needs, availability, and sound economical considerations, including subcontracting or mentoring opportunities. Suggested changes and MFD-V enhancements to this solicitation’s requirements for possible consideration and/or inclusion in future solicitations are strongly encouraged. Any questions regarding MFD-V outreach or questions/concerns regarding the City’s bidding process should be addressed to procurement@rockvillemd.gov or 240-314-8430.

mailto:procurement@rockvillemd.gov

Statement of “No Proposal Submittal”

If you do not intend to submit on this requirement, please complete and return this form prior to date shown for receipt of proposals to the buyer listed in this RFP by email only to lhall@rockvillemd.gov

I/WE HAVE DECLINED TO PROPOSE TO Stormwater Management (SWM) Facility Maintenance Program Support, titled RFP 39-26 for the following reason(s): [Please place a check mark () next to the reason(s) as applicable]

() Reason

Proposal requirements too "restrictive".

Insufficient time to respond to Request for Proposals.

We do not offer this service.

Our schedule would not permit us to perform.

Unable to meet requirements.

Unable to meet insurance or bond requirements.

Scope of Services unclear (please explain below).

Other (please specify below).

REMARKS:

Are you a Minority, Female, Disabled, or Veteran-Owned (MFD-V) business? _______ Yes _______ No

Company Name: ____________________________________________________________________________

Mailing Address: ____________________________________________________________________________

Telephone Number: _____________ Email Address: _____________________

Authorized Signatory Printed Name

Title Date mailto:lhall@rockvillemd.gov

CITY OF ROCKVILLE

ROCKVILLE, MARYLAND

REQUEST FOR PROPOSAL # 39-26

STORMWATER MANAGEMENT (SWM) FACILITY MAINTENANCE PROGRAM SUPPORT

RECEIPT AND HANDLING OF PROPOSALS

Sealed proposals will be received electronically via a City designated bid/proposal receipt software solution until 2:00 PM EST, September 18, 2026. The offeror assumes full responsibility for the timely delivery of a proposal via the designated solution. Proposals delivered in any other fashion will not be considered. Properly submitted proposals will be opened in a virtual environment after the time set for receipt of proposals.

Submission of a proposal electronically is consent by the bidder to conduct any or all elements of the procurement by electronic means, in accordance with the terms of this request for proposals.

Proposals presented after the proposal receiving deadline will not be received for any reason. The official time clock for receiving proposals will be that of the City’s third-party software solution providers located at Rockville City Hall.

ATTENTION: OFFERORS ARE HEREBY NOTIFIED THAT THE CITY’S THIRD-PARTY

SOFTWARE SOLUTION PROVIDER’S COMPUTER SERVER TIME MAY DIFFER FROM THAT OF

OTHER ELECTRONIC DEVICES, COMPUTER SOFTWARE AND COMPUTER HARDWARE THAT

MAY BE USED TO ELECTRONICALLY SUBMIT THE PROPOSAL. OFFERORS ARE RESPONSIBLE

FOR ALLOWING ADEQUATE TIME TO SUCCESSFULLY DELIVER THE PROPOSAL TO THE

REQUIRED ELECTRONIC LOCATION BY THE REQUIRED TIME.

In accordance with Chapter 17 of the City’s Procurement Ordinance, competitive sealed proposals are not publicly opened or otherwise handled so as to permit disclosure of the identity of any offeror or the contents of any proposal to competing offerors during the evaluation process. The proposals, except for information identified by the offeror as proprietary, shall be open for public inspection after the contract award.

REQUEST FOR PROPOSALS (RFP) DOCUMENTS

The RFP documents are available via the City’s Collaboration Portal only at:

Contract Insight - Collaboration Portal (rockvillemd.gov) https://contracts.rockvillemd.gov/gateway/Default.aspx

SUBMITTAL OF QUESTIONS

Technical and contractual questions pertaining to this RFP may be submitted via the City’s Collaboration Portal no later than 5:00 PM ET, August 20, 2026. Oral answers to questions relative to interpretation of requirements or the proposal process will not be binding on the City.

To ensure fair consideration for all offerors, any interpretation made to prospective offerors will be expressed in the form of an addendum to the requirements, if such information is deemed necessary for the preparation of proposals or if the lack of such information would be detrimental to the uninformed offeror. Such addendums, if issued, will posted at the City’s Collaboration Portal listed below:

Contract Insight - Collaboration Portal (rockvillemd.gov)

Please note, that it is the proposer’s responsibility to check this site frequently for Addendums, which may impact pricing, this documents requirements, terms and/or conditions. Failure to sign and return an Addendum with your response may result in disqualification of proposal.

Pre‑Proposal Meeting

A non‑mandatory virtual pre‑proposal meeting will be held on July 14, 2026 at 10:00 AM ET via Webex to provide an overview of the Project and to allow prospective Offerors an opportunity to ask questions regarding the requirements of this Request for Proposals (RFP). Meeting access information is as follows: Register Here

Attendance at the pre‑proposal meeting is optional and will not be considered in the evaluation of proposals.

All questions raised during the meeting must be submitted in writing through the City’s Collaboration Portal in accordance with the Submittal of Questions section of this RFP. Responses to questions from the pre‑proposal meeting, if deemed necessary by the City, will be issued by written Addendum posted on the City’s Collaboration Portal. Oral responses shall not be binding.

SITE LOCATION

All public stormwater management (SWM) facilities located within the City of Rockville are shown on the City’s public SWM facility map, where public facilities are identified by purple circles.

https://rockvillemd.maps.arcgis.com/apps/webappviewer/index.html?id=4ed7a4435bdb4362bbee38d22cde0

PROJECT DESCRIPTION

The City is seeking qualified contractor(s) to provide project management, engineering, planning support, inspections, routine maintenance, and non-routine maintenance for the City’s-public SWM facilities. Services under this contract will include maintenance and inspection activities across multiple categories of SWM facilities, including traditional SWM facilities, environmental site design (ESD) facilities, permeable pavement systems, vegetation management areas, and underground facilities.

AWARD

Award will be made to the qualified offeror(s) obtaining the highest weighted score combining price and technical qualifications. Additional information regarding award criteria can be found within the Evaluation and Award Section of this document. This RFP may result in a single award or multiple awards, depending on the best interest of the City. Awards will be made by SWM maintenance category, and one contractor may be awarded one or more categories.

https://contracts.rockvillemd.gov/gateway/Default.aspx https://rockvillemd.webex.com/weblink/register/r00087d0dec84eeaa0ee2a1d957fe96a9 https://rockvillemd.maps.arcgis.com/apps/webappviewer/index.html?id=4ed7a4435bdb4362bbee38d22cde0328

NOTICE TO OFFERORS/PROPOSERS

“Pursuant to 7-201 et seq of the Corporations and Associations Article of the Annotated Code of Maryland, corporations not incorporated in the State shall be registered with the State Department of Assessments and Taxation, 301 West Preston Street, Baltimore, MD 21201 before doing any interstate of foreign business in this State. Before doing any intrastate business in this State, a foreign corporation shall qualify with the Department of Assessments and Taxation.” Bidders must supply with their bids their US Treasury Department Employer’s Identification Number as such number is shown on their Employer’s Quarterly Federal Tax Return (US Treasury Department Form No. 941). Companies located outside Maryland should call 1-410-767-1006, or e-mail:

charterhelp@dat.state.md.us.

QUALIFICATIONS TO CONTRACT WITH PUBLIC BODY

Bidders must be qualified to bid in the state in accordance with Section 14-308 of the State Finance and Procurement Article of the Annotated Code of Maryland which ordains that any person convicted of bribery (upon acts committed after July 1, 1977) in furtherance of obtaining a contract from the State or any subdivision of the State of Maryland shall be disqualified from entering into a contract with the City.

EXPENSES ASSOCIATED WITH RESPONSE

The City of Rockville will not be responsible for any expenses incurred by a firm in preparing and submitting a proposal. All proposals shall provide a straightforward, concise delineation of the firm’s capabilities to satisfy the requirements of this request. Emphasis should be on completeness and clarity of content.

REJECTION OF PROPOSALS

The City reserves the right to reject any or all proposals in part or in full and to waive any technicalities or informalities as may best serve the interests of the City.

DISABILITY INFORMATION

Any individuals with disabilities who would like to receive the information in this document in another form may contact the ADA Coordinator at (240) 314-8100; TDD (240) 314-8137.

W-9 FORM REQUIRED

Successful respondents are required to complete and submit a W-9 Form. The W-9 form can be accessed at:

http://www.irs.gov/pub/irs-pdf/fw9.pdf?portlet=3. It is the successful respondent’s responsibility to act upon this instruction for submitting a W-9 form. The City will not be able to process payments if this form is not completed and submitted to the Purchasing Division.

NO CONTACT POLICY

Unless otherwise stated, any contact with any City official, employee, agent, or other representative concerning this Request for Proposals other the assigned buyer or procurement representative is prohibited. Any such unauthorized contact may disqualify the proposer from this procurement.

mailto:charterhelp@dat.state.md.us http://www.irs.gov/pub/irs-pdf/fw9.pdf?portlet=3

RFP 39-26

SUBMITTAL CHECKLIST

________ Responses shall be submitted electronically via the City’s Collaboration Portal no later than the due date and time as shown in this solicitation.

Contract Insight - Collaboration Portal (rockvillemd.gov)

________ Complete and return the Execution of Offer (Attachment A) with your proposal.

Failure to complete and return this document may result in the disqualification of your proposal.

________ Complete and return the enclosed Non-Conviction/Collusion Affidavit Form (Attachment B) with your proposal. Failure to complete and return this document may result in the disqualification of your proposal.

________ Provide documentation demonstrating compliance with minimum qualifications, including applicable licenses and certifications (e.g., MDA Pesticide Applicator Certification, Erosion and Sediment Control Responsible Personnel Certification), as required for the categories proposed.

________ Provide a letter of transmittal certifying that the Proposer meets qualifications that do not have formal documentation (e.g., access to equipment, operational capabilities, or vendor relationships) and has the necessary resources to perform the work.

________ Provide a Maryland Occupational Safety and Health (MOSH) safety record summary for the past five (5) years, or a statement indicating no violations.

________ Provide a statement that the firm, if awarded the contract, shall meet all of the insurance requirements contained within this bid document. (This information should be provided in your letter of transmittal)

________ If you are an entity (limited liability partnerships, corporations, limited partnerships, limited liability companies, limited liability limited partnerships, business trusts, real estate investment trust and trade name filings), is the legal name of your company listed with the State of Maryland Department of Assessments and Taxation and in good standing? You may check by going to:

https://dat.maryland.gov/Pages/default.aspx

________ Check the City’s Collaboration Portal for any addenda and acknowledge in Attachment A.

Note: The City will no longer generate check payments to awarded vendors. Electronic payments will only be issued. If your company is selected, you shall be required to complete and submit an ACH application prior to award of a contract/purchase order.

NAME OF BIDDER____________________________

RETURN THIS FORM WITH PROPOSAL

https://contracts.rockvillemd.gov/gateway/Default.aspx https://dat.maryland.gov/Pages/default.aspx

TABLE OF CONTENTS

Section I: Project Overview A. Intent B. Background C. Term of the Agreement D. Minimum Requirements E. Existing Information F. Projected Project Timeline G. Procurement Contact

Section II: Scope of Work and Technical Requirements Technical Requirements A. Traditional SWM Facilities Category B. Environmental Site Design Minor Maintenance Category C. Permeable Pavers/Pavement Category D. Vegetation Management Category E. Underground Facilities Category

Section III: General Instructions for Proposal Preparation and Delivery A. Proposal Format B. Delivery Requirements

Section IV: Evaluation Criteria and Selection Process A. Written Proposal Evaluation B. Presentations/Demonstrations/Interview Evaluation C. Determining Responsibility D. Evaluation Committee E. Initial Evaluation of Proposals F. Presentations/Demonstrations/Interviews G. Best and Final Offer and Negotiations H. Notice of Intent to Award

Attachments Attachment A: Execution of Offer Form Attachment B: Affidavit Attachment C: General Terms, Conditions and Instructions Attachment D: Insurance Requirements Attachment E: City General Notes and Applicable Stormwater Standards Attachment F: Non-Pre Priced Items Attachment G: Record Drawings Attachment H: Special Provisions

ROCKVILLE, MARYLAND

REQUEST FOR PROPOSAL # 39-26

STORMWATER MANAGEMENT (SWM) FACILITY MAINTENANCE PROGRAM SUPPORT

I. PROJECT OVERVIEW

A. Intent This project is intended to provide City of Rockville with support maintaining stormwater best management practices (BMPs). Support may include inspection of structures and designed plantings, routine maintenance as well as specialized, non-routine maintenance on both green and grey infrastructure (SWM) BMPs both above and below ground, coordination with the City on traffic control and site access for certain facilities, and hauling and proper disposal of soil, plant, and other maintenance waste as applicable. This project also intends to provide general professional services to further support BMP maintenance activities and enhance the City’s SWM maintenance program, including engineering, project management, and other technical services to support the planning, design, modification, rehabilitation, and decommissioning of SWM facilities when needed.

The Scope of Work is divided into five (5) maintenance categories, to reflect the distinct facility types and their maintenance needs. The Contractor(s) may submit proposals for any or all categories, provided they meet the minimum qualifications for each category they propose. The City may award one contract covering all categories, or multiple contracts to different qualified contractors on a category basis, depending on the best interests of the City.

Certain categories include routine maintenance services to be performed at specified frequencies and timeframes without direct scheduling by the City, as well as non-routine line items to be completed on an as-need basis upon City authorization.

B. Background The City of Rockville is a Municipal Separate Storm Sewer System (MS4) Phase II community and is required to maintain stormwater BMPs in functioning condition, effectively treating stormwater runoff from a Maryland Department of the Environment (MDE)-approved percentage of the impervious surface acres located in Rockville. Functioning condition entails that BMPs are inspected, at minimum, on an MDE required inspection frequency (every three years for most types), receive passing scores, and do not show excessive signs of deteriorating effectiveness applicable to the specific BMP type, such as ponding in a dry BMP, erosion causing structural instability, unwanted or excessive plant growth, or sedimentation impeding stormwater flow or infiltration.

The City maintains a public stormwater BMP inventory of approximately 221 facilities, as of the date of this RFP, spanning the following facility types:

a) Bioretention and Microbioretention

b) Flowsplitter

c) Grass Swale: Structural, Microscale

d) Green Roof – Extensive

e) Infiltration Trench

f) Oil-Grit Separators, Proprietary and Generic

g) Outfall Restoration

h) Permeable Pavement and Pavers

i) Ponds, including Wet and Dry Ponds with and without Extended Detention, Extended

Detention Shallow Wetlands, and Surface Sand Filters

j) Underground Sand Filters

k) Stream Restoration

l) Underground Pipe Storage, Water Quality Filters, and Vault Storage

Under the Scope of Work, these facility types will be listed individually, or in groups where designs and volumes as applicable, within one (1) or several of the City’s five (5) stormwater management facility maintenance categories, depending on the type of maintenance needed and/or BMP type. These maintenance categories are listed below:

a) Traditional SWM Facilities

b) ESD Minor Maintenance

c) Permeable Pavers

d) Vegetation Management

e) Underground Facilities

C. Term of the Agreement The Contractor shall be on call after receipt of a Master Agreement and the contract will be effective for one year after award, with the option to extend the contract for four (4) additional one (1) year periods.

D. Minimum Requirements To be considered, the Contractor must meet all of the following criteria:

1. Have a minimum of five (5) consecutive years of experience in providing stormwater BMP maintenance and inspection, and proper material waste disposal;

2. Have at least one team member with an Erosion and Sediment Control Responsible Personnel Certification (formerly “Green Card”) from MDE;

3. Be able to provide MOSH safety records and any violations from the past five (5) years;

4. Be in good financial standing, not in any form of bankruptcy, current in payment of all taxes and fees such as state franchise fees and not currently involved in any type of litigation.

To be considered, the Contractor must also meet all the following criteria for any maintenance categories they are proposing:

1. Traditional SWM Facilities

a. Have access to, or ways to obtain and properly operate, the following specialized

BMP maintenance equipment: mowers, excavator or backhoe, tree and stump removal equipment, means to transport waste material such as sediment.

b. Have access to signage and equipment to facilitate safe temporary traffic control including sidewalk and trail closures and detours in accordance with the Manual on Uniform Traffic Control Devices (MUTCD) and the Americans with Disabilities Act

(ADA).

c. Have access to a Maryland Licensed Tree Expert (LTE), preferably also holding International Society of Arboriculture (ISA) Certified Arborist credentials. Provide staff certificates or other proof of certification where applicable.

d. Have staff with experience specific to stormwater BMP facility design and decommissioning, both above ground and below ground, and with experience with pond embankment/dam design and decommissioning per Maryland Pond Code 378 Standard.

e. Have staff experienced in Integrated Pest Management (IPM) for forestry and stormwater practices.

f. Have maintenance staff with current Maryland Department of Agriculture (MDA) Pesticide Applicator certification in site-appropriate categories, including Aquatic, Forest, Right of Way, Ornamental and Turf, under an active MDA Pesticide Business License in good standing. Provide staff certificates or other proof of certification where applicable.

g. The Contractor shall submit one-page resumes for key personnel proposed for this contract. A Professional Engineer (PE) license is required for the Senior Engineer role. Resumes shall demonstrate relevant education, certifications (e.g., PE, PMP, etc.), and experience for the following categories:

i. Project Manager

ii. Senior Engineer

2. Environmental Site Design Minor Maintenance

a. Have access to, or ways to obtain and properly operate, the following specialized

BMP maintenance equipment: mowers, percolation test equipment.

b. Have access to, or an existing relationship with, plant nurseries in the area for facility planting procurement, especially focused on Maryland native plants, and ensure plant materials are obtained from a vendor holding a current Maryland Nursery Inspection Certificate, as applicable.

c. Have maintenance staff that are certified through the Chesapeake Bay Landscape Professional (CBLP) or National Green Infrastructure Certification Program (NGICP), or City approved equivalent. Provide staff certificates or other proof of certification where applicable.

d. Have staff with experience specific to planting plan design and vegetation maintenance for stormwater filtration and infiltration practices.

e. The Contractor shall submit one-page resumes for key personnel proposed for this contract. Resumes shall demonstrate relevant education, certifications, and experience for the following categories:

i. Project Manager

ii. Landscape Architect and/or Employee with relevant horticulture experience

3. Permeable Pavement

a. Have access to, or ways to obtain and properly operate, specialized permeable pavement maintenance equipment capable of performing deep cleaning and vacuum removal of sediment and debris from permeable pavement surfaces. Equipment shall be suitable for use in sidewalks, alleys, parking lots, and similar confined or paved areas. Acceptable equipment may include a vacuum street sweeper and smaller multi-surface commercial vacuum equipment, such as a Little Wonder walk-behind vacuum system, Billy Goat MV650SPH Multi-Surface Commercial Vacuum, or approved equivalent. The Contractor shall also have the means to collect, contain, and transport waste material, including sediment and debris, for proper disposal.

b. Have access to signage and equipment to facilitate safe temporary traffic control including sidewalk closures and detours in accordance with the Manual on Uniform Traffic Control Devices (MUTCD) and the Americans with Disabilities Act (ADA)

4. Vegetation Management

a. Have access to, or ways to obtain and properly operate, the following specialized

BMP maintenance equipment: mowers, excavator or backhoe, tree and stump removal equipment, means to transport waste material such as sediment, as well as access to personnel to comprise roles such as Landscape Foreman/Non-Native Invasive (NNI) Foreman and Crew Supervisor, with specific roles holding the needed certifications listed in bullets b through e below.

b. Have maintenance staff with current Maryland Department of Agriculture (MDA) Pesticide Applicator certification in site-appropriate categories, including Aquatic, Forest, Right of Way, Ornamental and Turf, under an active MDA Pesticide Business License in good standing. Provide staff certificates or other proof of certification where applicable.

c. Have access to a Maryland Licensed Tree Expert (LTE), preferably also holding ISA Certified Arborist credentials, with experience relevant to tree assessment, maintenance, removal, and replacement associated with stormwater BMPs and related site work. Provide staff certificates or other proof of certification where applicable.

d. Have a crew supervisor and/or foreman that are certified through the Chesapeake Bay Landscape Professional (CBLP) or National Green Infrastructure Certification Program (NGICP), or city approved equivalent. Provide staff certificates or other proof of certification where applicable.

e. Have staff with experience specific to NNI plant management, Integrated Pest Management (IPM) and large-scale native plant restoration planning and implementation. Have access to, or an existing relationship with, plant nurseries in the area for facility planting procurement, especially focused on Maryland native plants, and ensure plant materials are obtained from a vendor holding a current Maryland Nursery Inspection Certificate, as applicable.

f. The Contractor shall submit one-page resumes for key personnel proposed for this contract. Resumes shall demonstrate relevant education, certifications, and experience for the following categories:

i. Project Manager

ii. Landscape Architect and/or Employee with relevant horticulture experience

5. Underground Facilities

a. Have access to, or ways to obtain and properly operate, the following specialized BMP maintenance equipment: vacuum truck, power washers, means to transport waste material such as sediment.

b. Have staff with experience specific to underground stormwater BMP facilities, including design support, maintenance, repair, rehabilitation, structural assessment, and decommissioning of subsurface practices and associated structures.

c. Have maintenance staff who may perform confined space entry and are properly trained in confined space entry in accordance with MOSH standards.

d. Have means of traffic control for facilities, as noted in facility inventory.

e. Have access to a licensed Professional Engineer(s) with structural assessment experience.

f. The Contractor shall submit one-page resumes for key personnel proposed for this category. Resumes shall demonstrate relevant education, certifications, and experience related to underground stormwater BMP facilities for the following positions:

i. Project Manager

The proposer shall provide documentation demonstrating compliance with the minimum qualifications listed above. Documentation may include copies of licenses, safety records, or other applicable supporting materials.

For qualifications that do not have formal documentation (e.g., equipment, operational capabilities or vendor relationships), the proposer shall provide a transmittal letter stating that they meet these requirements and have the necessary resources available to perform the work.

Failure to provide said documentation with your proposal shall be grounds for deeming your firm not qualified and removing the proposal from further consideration. This is a non-negotiable item.

E. Existing Information Below is a list of existing information that is provided by the City in the RFP, unless otherwise noted below.

1. Facility inventory of public SWM facilities organized by maintenance category.

2. City of Rockville’s online GIS map of public SWM facilities.

3. Attachment E – City Standards

4. Attachment G - Record Drawings

a. Record drawings for underground pipe, vault storage and underground sand filters.

b. Example drawings for small OGS, large OGS, and flowsplitter.

5. Example Work Completion Report - An example Work Completion Report will be provided to the awarded proposer(s).

F. Projected Project Timeline

DESCRIPTION TARGET DATE

RFP Issued 7/7/2026 Pre-Proposal Meeting 7/14/2026 Offeror’s technical questions due via email 8/20/2026 Addendum to RFP issued, if required 9/3/2026 Proposals due to the City 9/18/2026 Contractor oral presentations, if required Week of 9/21/2026 Contractor discussions/negotiations Week of 9/28/2026 Contract Award TBA

The target dates provided are estimates and may be subject to change during the process.

G. Procurement Contact The sole point of contact at the City for purposes of this RFP, prior to award of any contract, is:

Lawrence Hall Principal Buyer Lhall@rockvillemd.gov mailto:Lhall@rockvillemd.gov

II. SCOPE OF WORK AND TECHNICAL REQUIREMENTS

Technical Requirements The Contractor shall perform inspections, routine maintenance, non-routine maintenance, and project management support for stormwater BMPs anywhere within the Rockville City limits, while adhering to an inspection and maintenance schedule developed with the City.

For facilities where traffic control is identified as necessary in the facility inventory, the Contractor shall provide appropriate traffic control measures. A traffic control plan shall be submitted to the City for review and written approval prior to commencing work at those locations.

The Contractor shall submit Work Completion Reports (WCR) with photos for each routine maintenance and non-routine maintenance event. An example WCR will be provided to the awarded proposer(s). For reference, the example report is anticipated to be approximately 2 to 3 pages in length, including photos, and will include the following:

(a) Facility name and City Facility ID (FAC ID)

(b) Before and after photos taken in the same location

(c) Identification and photos of each maintenance area

(d) Start and/or completion date(s)

(e) Cost and quantity summary organized by maintenance type/category

(f) Percent capacity accumulated/remaining (for underground facilities only)

(g) Disposal tickets from a State-approved facility (for underground facilities only)

(h) Infiltration results pre and post maintenance (for permeable pavers/pavement facilities only)

Services shall include all labor, materials, tools, equipment, analysis, travel, mobilization, transportation, documentation, waste disposal, and support services required to complete needed BMP remediation actions. This will include the Contractor obtaining all required utility locates before performing any subsurface work, and necessary City or State permits (when required).

Standards

• Work shall comply with applicable City standards. See Attachment E for referenced City standards.

ο General Notes ο Erosion and Sediment Control Notes ο General Storm Drain and Paving Notes ο Geotechnical Notes ο Stormwater Management Structure Notes

• Work shall adhere to the below applicable general standards and specifications and shall use the most up-to-date version when any newer versions exist:

ο American Association of State Highway and Transportation Officials (AASHTO) ο Maryland Department of the Environment (MDE) Water Management

Administration, “2011 Maryland Standards and Specifications for Soil Erosion and Sediment Control”, December 2011.

ο Maryland Department of the Environment (MDE) Water Management Administration, “2000 Maryland Stormwater Design Manual”, Revised May 2009.

ο Maryland Department of the Environment (MDE) Water Management Administration, “Maryland’s Waterway Construction Guidelines”, Revised November 2000.

ο Maryland Department of the Environment (MDE) Water Management Administration, Dam Safety Division:

• Dam Safety Guidelines and Policy Memoranda as available on the MDE Dam Safety website, including Policy Memorandum No. 1 (Maintenance and Repair: Trees and Woody Vegetation); Policy Memorandum No. 6 (Dam Decommissioning).

ο Maryland Department of Transportation (MDOT), State Highway Administration

(SHA):

• “Book of Standards for Highway and Incidental Structures” July 2025

• “Standard Specifications for Construction and Materials” July 2025 ο United States Department of Agriculture (USDA), Natural Resources Conservation Service (NRCS), Maryland, “Conservation Practice Standard, Pond Code 378”, January 2000.

ο American National Standards Institute (ANSI), “Z60.1 American Standard for Nursery Stock,” 2004.

ο American National Standards Institute (ANSI), “ANSI A300 Tree Care Standards,” latest version.

• The contractor must obtain written City approval prior to performing maintenance including confirming whether work should follow the original design, or Maryland Department of Transportation (MDOT)/other applicable state/local agency standard specifications.

• The Contractor shall perform all work in compliance with all applicable Occupational Safety and Health Administration (OSHA) and Maryland Occupational Safety and Health (MOSH) requirements.

• For Bioretention and Microbioretention maintenance, work shall comply with the Montgomery County Microbioretention standard (see Attachment E).

• For soil mix/planting media, the Contractor shall utilize MDOT State Highway Administration (SHA) Standard Specification 920, unless otherwise directed or approved by the City.

• For Vegetation Management and Traditional SWM Facilities categories, tree removal shall comply with MD 378 Dam Safety Policy Memorandum #1 where applicable (see Attachment E).

• The use of plastic/monofilament erosion control matting will be prohibited; a wildlife safe, biodegradable matting, including stakes and staples where needed, must be used.

Site Conditions and Access

• The Contractor shall be responsible for familiarizing themselves with site conditions prior to submitting a bid. By submitting a proposal, the Contractor acknowledges that they have reviewed the available facility inventory, GIS information, and publicly available mapping resources, and have considered site access, terrain, vegetation, and other conditions that may affect maintenance activities. No additional compensation will be provided for conditions that could have been reasonably anticipated based on available information.

Communication with the City

• The Contractor shall designate a primary point of contact responsible for coordinating all work under this contract.

• The Contractor shall provide advance notice to the City prior to mobilizing to any project site. The Contractor shall notify the City a minimum of 5 business days in advance of any work to be performed, including access confirmation, and any necessary coordination. For recurring maintenance activities conducted on an established schedule, advance notice may be waived if the schedule has been reviewed and agreed upon by the City. Work shall not be conducted during adverse weather conditions that could increase the potential for sediment releases or reduce the effectiveness of the maintenance activity. If work is postponed due to weather conditions, the Contractor shall notify the City as soon as the decision to delay is made.

• The Contractor shall promptly notify the City of any issues, deficiencies, or unexpected site conditions encountered during maintenance or inspection activities that may affect facility performance, safety, or the scope of work. Notification shall be provided within one (1) business day of identification. The contractor is not permitted to perform work beyond the original task order proposal without prior written approval from the City.

• Upon award of the contract, the City shall designate a primary point of contact responsible for coordinating with the Contractor and authorizing work performed under this contract.

A. Traditional SWM Facilities Category:

This category includes routine maintenance for Surface Sand Filters on a per facility, per event basis with a frequency of twice per year. It also includes non-routine maintenance for all above ground SWM BMPs, organized into the following SWM types:

i. Surface Sand Filters

ii. Dry Ponds with and without Extended Detention, Wet Ponds with and without Extended

Detention,

iii. Extended Detention Shallow Wetlands

iv. Bioretention Facilities and Microbioretention Facilities (including Filterra)

v. Infiltration Trenches

vi. Green Roofs

Non-routine maintenance will also include structural work on the following SWM facility types:

i. Drywells

ii. Permeable Concrete/Permeable Pavement

Routine Maintenance – Surface Sand Filters Routine maintenance shall be performed per facility, per event, two times annually during the following periods, subject to weather conditions:

• Early Spring Visit (April/May)

• Fall Visit (October/November)

i. Remove minor or incidental trash and debris, up to four (4) contractor sized trash bags, accumulated in the facility. If significant volumes of trash and debris are encountered, the Contractor shall notify the City and obtain approval prior to performing additional non-routine work.

ii. Remove minor sediment, debris, or other blockage, up to one (1) cubic yard, from storm drain inflow(s) and low flow. If significant volumes of debris and sediment are encountered, the

iii. Repair up to 10 square yards of minor erosion annually. If areas of erosion are significant, entrenched requiring structural (riprap) repair, or greater than 10 square yards, the Contractor shall notify the City and obtain written approval prior to performing additional non-routine work

iv. Rake the sand bed to promote filtration as applicable. Evaluate the need for sediment or sand removal and replenishment.

Non-routine (as-needed) Maintenance – All Above Ground SWM BMPs As-needed non-routine maintenance beyond the defined routine maintenance for surface sand filters. Non-routine maintenance for all above ground SWM BMPs that are more structural in nature, that may include but is not limited to complete rebuilds for bioretention or microbioretention facilities, sediment removal, repair or replacement of structural components, and rehabilitation of drainage or infiltration elements for green roofs, ponds, and infiltration trenches. Work may include repair of inlets, outlets, pipes, underdrains, embankments, and erosion control features; replacement of filter media, aggregate, riprap, or geotextile; and removal of accumulated sediment, trash, or debris. The Contractor shall obtain written approval from the City to determine whether maintenance should follow the original facility design or utilize applicable standard specifications from MDOT or another state agency.

Infiltration Testing Infiltration testing shall be performed in accordance with ASTM D3385-09, Standard Test Method for Infiltration Rate of Soils in Field Using Double-Ring Infiltrometer, or other method approved by the City. Testing shall only be performed for facilities designated by the City, such as infiltration practices or other facilities with filter media where infiltration performance needs to be evaluated. Infiltration testing shall not be conducted during rainfall, within 48 hours following a significant rainfall event greater than 0.5 inches, or when the ground is frozen or air temperatures are below freezing. The Contractor shall perform the testing, document the procedures and results, and submit the findings to the City for review.

Project Management and Engineering Support – All Above Ground SWM BMPs The Contractor shall provide engineering, project management, and technical services necessary to support planning, design, modification, rehabilitation, and decommissioning of SWM facilities on an as-needed basis. Services may include but are not limited to:

i. Project management and coordination with the City, regulatory agencies, and other stakeholders.

ii. Project planning, including site assessments, data review, and identification of facility deficiencies or improvement opportunities.

iii. Engineering services including minor redesigns or modifications to existing SWM facilities to address operational, maintenance, or performance issues.

iv. Preparation of permit applications, coordination with the City and permitting agencies, and support for obtaining permits or approvals required to complete the assigned work, when necessary, such as MDE wetland and waterway permits or dam safety reviews.

Engineering services provided under this contract are limited to minor modifications, evaluations, and conceptual design support. Preparation of full construction plans or major facility redesign is outside the scope of this contract unless specifically authorized by the City.

Example project types may include, but are not limited to:

i. Aboveground SWM facility decommissioning (e.g. bioretention)

ii. Pond embankment/dam decommissioning per Maryland Pond Code 378 Standards

Facility Inventory A publicly available inventory web map is available for site-specific lookup of stormwater facilities and can be accessed at:

https://rockvillemd.maps.arcgis.com/apps/webappviewer/index.html?id=4ed7a4435bdb4362bbee 38d22cde0328

The facility inventory provided below represents the currently known facilities included in this contract category; however, quantities may vary and the City reserves the right to add or remove facilities during the contract term.

Surface Sand Filter Facilities (Routine and Non-Routine)

FAC ID LOCATION BED (SY)

2000-03014 401 WATKINS POND BLVD 450

2001-03021B 1105 ELMCROFT BLVD 400

2001-03028 PICCARD DRIVE 185

2001-03215A 1600 PICCARD DR 150

2004-02203 MOORE DRIVE 275

2005-03201 1101 GRAND CHAMPION DR 375

97-01006 E of 1014 CURTIS PL 220

Traditional SWM Facilities (Non-Routine)

FAC ID DESCRIPTION LOCATION

Dry Ponds 1984-01201 Dry Pond with Extended Detention DUNDEE ROAD 1995-3052 Dry Pond with Extended Detention WINDING ROSE DRIVE

2007-03207A Dry Pond with Extended Detention W GUDE DRIVE 2007-03207B Dry Pond with Extended Detention CARNATION DRIVE 76-03014 Dry Pond with Extended Detention PEBBLE RIDGE COURT 91-2029 Dry Pond with Extended Detention CRABB AVENUE 95-3048 Dry Pond with Extended Detention BLUE HOSTA WAY 95-3049 Dry Pond with Extended Detention WINDING ROSE DRIVE 95-3050 Dry Pond with Extended Detention WINDING ROSE DRIVE 95-3051 Dry Pond with Extended Detention WINDING ROSE DRIVE 2001-03021A Dry Pond 1105 ELMCROFT BLVD 71-03003 Dry Pond GERARD COURT 73-03012 Dry Pond DUNDEE ROAD 73-2036 Dry Pond 14500 AVERY ROAD 77-01002 Dry Pond ARLIVE COURT 77-01020 Dry Pond FARM HAVEN COURT 77-01020B Dry Pond NORTH FARM LANE 77-03004 Dry Pond FALLSWOOD DRIVE 85-01017 Dry Pond 312 RITCHIE PKW 88-01007 Dry Pond NORHT OF 191 LELAND ST 94-2058 Dry Pond E GUDE DRIVE Wet Ponds and Wetlands 2000-03011A Wet Extended Detention Pond DARNESTOWN ROAD-SHADY GROVE

RD

2000-03011B Wet Extended Detention Pond DARNESTOWN ROAD-SHADY GROVE

RD

2000-03013 Wet Extended Detention Pond DARNESTOWN ROAD-W. MONT. AVE 2000-03018 Wet Extended Detention Pond W. MONT. AVE 2002-03015A Wet Extended Detention Pond 1050 GAITHER ROAD 2004-03202 Wet Extended Detention Pond NE OF GUDE DR-W. MONTGOMERY AVE 2008-03203A Wet Extended Detention Pond 615 COLLEGE PARKWAY 2010-02001 Wet Extended Detention Pond 14645 ROTHGEB DR 2014-03006 Wet Extended Detention Pond AINTREE DRIVE 2021-04A Wet Extended Detention Pond MT VERNON PL 2021-05A Wet Extended Detention Pond E. GUDE DRIVE 82-03001 Wet Extended Detention Pond 1600 RESEARCH BLVD 82-3026 Wet Extended Detention Pond 13901 GLEN MILL ROAD 95-01009 Wet Extended Detention Pond TOWER OAKS BLVD 98-03012B Wet Extended Detention Pond 600 KING FARM BLVD 99-03015 Wet Extended Detention Pond 700 KING FARM BLVD 2007-03203A Wet Pond AUTUMN WIND WAY 2007-03203B Wet Pond ROSE PETAL WAY 2014-01001 Wet Pond SEVEN LOCKS ROAD 2014-03007 Wet Pond LONGHILL DRIVE 2008-03001 Extended Detention (ED) Shallow Wetland 300 WATKINS OVERLOOK 2014-01002 ED Shallow Wetland DUNSTER LANE

2018-13A ED Shallow Wetland 945 CABIN JOHN PKY 73-2032A ED Shallow Wetland 14500 AVERY ROAD 73-2032B ED Shallow Wetland 14500 AVERY ROAD 81-02021 ED Shallow Wetland DOVER ROAD 99-2059 ED Shallow Wetland 7301 WESTMORE ROAD 2014-06A Pond/Wetland System SUNRISE DRIVE 80-1057 Pond/Wetland System 1307 SEVEN LOCKS ROAD 98-03012A Pond/Wetland System 700 KING FARM BLVD Infiltration Trenches 2002-03014A Infiltration Trench OAK KNOLL DRIVE 2002-03014B Infiltration Trench 700 FALLSGROVE DR 2016-02001 Infiltration Trench 601 EDMONSTON DRIVE 2020-03A Infiltration Trench 355 MARTINS LN Green Roofs 2009-01201A Green Roof – Extensive 2 W MONTOGEMERY AVE Drywell 2012-03201 Drywell 355 MARTINS LN Grass Swales 95-01202 Grass Swale – Microscale 899 LEWIS AVE 2007- 03203C

Grass Swale – Microscale BULLARD CIR

2000-02002 Grass Swale – Microscale 601 EDMONSTON DRIVE 2019-18B Grass Swale – Microscale SOUTHLAWN LN 2019-18C

Grass Swale – Microscale SOUTHLAWN LN

2019-18D Grass Swale – Microscale SOUTHLAWN LN 2008-01201 Grass Swale 799 ROCKVILLE PIKE Bioretention and Microbioretention 1996-03219A Bioretention AINTREE DRIVE 2002-03014C Bioretention BLACKWELL ROAD 2003-03001 Bioretention FIRST AND NORBECK 2010- 03201A*

Bioretention 1150 CARNATION DR

2015-01001 Bioretention ROLLINS AVENUE 2021-05B Bioretention NEAL DRIVE 2021-05C Bioretention WESLEY DRIVE 2009-01201B Microbioretention – Filterra 2 W MONTGOMERY AVE 2018-10A* Microbioretention 601 EDMONSTON DR 2018-10B* Microbioretention 601 EDMONSTON DR 2018-12A Microbioretention JAMES MONROE PARK 2019-06A Microbioretention 355 MARTINS LN 2020-05B Microbioretention BALTIMORE RD AND BROADWOD 2002-03016A Bioretention HENSON OAKS LANE

2002-03016B Bioretention HENSON OAKS LANE *Location is within a City park and will need advanced notice for City Project Manager to coordinate work. These locations will require maintenance dates to be scheduled a minimum of two (2) weeks in advance to allow time for City Manager to coordinate with the Park Manager. Schedule will only be approved after coordination with Park Manager.

B. Environmental Site Design Minor Maintenance Category:

This category includes routine and aesthetic maintenance for bioretention and microbioretention facilities on a per facility, per event basis. It also includes non- routine maintenance that is more limited and non-structural in nature for the following SWM Facility types:

i. Bioretention Facilities

ii. Microbioretention Facilities

iii. Infiltration Trench

iv. Grass Swales

v. Drywell

Routine Maintenance – Bioretention/Microbioretention The following routine maintenance activities apply to all bioretention and microbioretention facilities included in this category unless otherwise noted.

i. Remove minor or incidental trash and debris, up to four (4) contractor sized trash bags, accumulated in the facility. If significant volumes of trash and debris are encountered, the Contractor shall notify the City and obtain approval prior to performing additional non-routine work.

ii. Repair areas that have minor erosion and sedimentation up to 1 cubic yard of new material. If significant erosion or sedimentation is encountered due to unusual conditions or design and/or construction deficiencies, the Contractor shall notify the City and obtain approval prior to performing additional non-routine repair.

iii. Selectively prune and thin woody plant material such as shrubs and trees in accordance with industry standard. Evaluate the need for supplemental plant material or revision to the existing plant species. Any additional plant material or plantings beyond routine maintenance shall be considered non-routine work and will require City approval prior to proceeding.

iv. Thin and re-plant herbaceous plant material, as applicable, as needed. Evaluate the need for supplemental plant material or revision to the existing plant species. Any additional plant material or plantings beyond routine maintenance shall be considered non-routine work and will require City approval prior to proceeding.

v. Work mulch of all landscape bed areas directly associated with the bioretention areas to promote aeration and infiltration.

vi. Mow all grass areas not identified as having a specific planting plan, including those immediately surrounding the facility. Trees greater than 2” in caliper are not included.

vii. Supplement mulch as needed to maintain a 3-inch total depth of mulch. Mulch supplement exceeding fifteen percent (15%) of the total mulch volume shall not be considered part of the routine maintenance scope.

viii. Remove and replace mulch one time annually (during the Early Spring Visit) to maintain the approximate design filter bed surface elevation.

Routine Maintenance Frequencies Routine maintenance shall be performed per facility, per event according to the frequency identified in the facility inventory below, subject to weather conditions.

Bioretention/Microbioretention facilities will be performed at pre-determined frequencies of one (1), two (2), three (3), or six (6) times annually, as described and shown in the facility inventory below.

One Times Annually

• Early Summer Visit (July/August)

The following limited maintenance activities shall be performed during this site visit:

i. Remove minor or incidental trash and debris, up to four (4) contractor sized trash bags, accumulated in the facility. If significant volumes of trash and debris are encountered, the Contractor shall notify the City and obtain approval prior to performing additional non-routine work.

ii. Repair areas that have minor erosion and sedimentation up to 1 cubic yard of new material. If significant erosion or sedimentation is encountered due to unusual conditions or design and/or construction deficiencies, the Contractor shall notify the City and obtain approval prior to performing additional non-routine repairs.

Two Times Annually

• Early Spring Visit (April/May)

• Fall Visit (October/November)

The following limited maintenance activities shall be performed during this site visit:

i. Remove minor or incidental trash and debris, up to four (4) contractor sized trash bags, accumulated in the facility. If significant volumes of trash and debris are encountered, the

ii. Repair areas that have minor erosion and sedimentation up to 1 cubic yard of new material. If significant erosion or sedimentation is encountered due to unusual conditions or design and/or construction deficiencies, the Contractor shall notify the City and obtain approval prior to performing additional non-routine repairs.

Three Times Annually

• Early Spring Visit (April/May)

• Early Summer Visit (July/August)

• Fall Visit (October/November)

The following routine maintenance tasks shall be performed during each visit: (i-viii)

Six Times Annually

• Monthly site visit May…