Waste Removal Services September 2026.docx

WESTERN REGIONAL

OFF-TRACK BETTING

CORPORATION

Public Bid Date: September 3, 2026 Time: 2:00 p.m.

WASTE REMOVAL SERVICES

Western Regional Off-Track Betting Corporation 8315 Park Road Batavia, New York 14020

(585) 343-1423

INVITATION FOR BIDS

The Western Regional Off-Track Betting Corporation, whose corporate offices are located at 8315 Park Road, Batavia, NY 14020, hereby invites the submission of sealed bids for Waste Removal Services.

Specifications and bid forms may be obtained from the office of Megan M. Glor, Director of Purchasing/Procurement Officer, upon request by calling (585) 343-1423 or via email at mglor@westernotb.com.

Sealed bids will be publicly opened and read in the Robert J. Kane boardroom at said corporate offices, located within Batavia Downs Gaming & Hotel, at 2:00 p.m. on Thursday, September 3, 2026.

All bids must be accompanied by the following documents: Non-Collusion Bidding Certification pursuant to New York General Municipal Law § 103-d; Offerer’s Affirmation of Understanding of and Agreement pursuant to New York State Finance Law § 139-j; Offerer’s Certification of Compliance pursuant to New York State Finance Law § 139-k(5); Offerer Disclosure of Prior Non-Responsibility Determinations pursuant to New York State Finance Law § 139-k; references page; and any other forms required by this bid package.

INSTRUCTIONS FOR BIDDERS

1.1 Purpose

The Western Regional Off-Track Betting Corporation (WROTB) hereby invites the submission of sealed bids from qualified vendors for Waste Removal Services, as specified within this Bid Document.

Bidders must submit a complete bid that meets all specifications, forms, certifications, and requirements set forth in these Invitation for Bids documents.

1.2 Procurement Officer

The Procurement Officer identified below is the sole point of contact regarding this bid from the date of issuance until the selection of the successful bidder.

1.3 Presentation and Clarification of WROTB’s Rights and Intentions

WROTB is not committed to award a contract to any bidder or to pay any costs incurred in the preparation or submission of a bid. WROTB reserves the right, in its sole discretion and when in the best interest of WROTB, to reject any or all bids, to waive informalities or irregularities in any bid, and to make an award only to the lowest responsive and responsible bidder whose bid complies with these Invitation for Bids documents.

WROTB will accept sealed bids for Waste Removal Services in the quantities set forth in the Bid Form and Specifications. Award, if made, will be based on the lowest total base bid price submitted by a responsive and responsible bidder. Bids must be submitted to Megan M. Glor, Director of Purchasing/Procurement Officer, in a sealed envelope and must be received no later than 2:00 p.m. EST on Thursday, September 3, 2026.

Each bid shall be submitted in a sealed envelope clearly marked as to the contents therein, bearing on the outside the name and address of the vendor. Bids must be mailed or delivered to the aforementioned address so as to be received prior to the time set forth in the advertisement for opening bids.

Faxed or emailed bids will not be accepted. Bidders are responsible for the timely delivery of bid packages to WROTB at the date and time specified therein.

Bidder must not have been an officer, director, or employee of WROTB within the last five (5) years.

Bidders shall read thoroughly and understand the specifications, bid conditions, and contract content contained herein.

1.4 Overview of the Organization

The Western Regional Off-Track Betting Corporation (WROTB) is one of five (5) Regional OTB Corporations established and financed by their respective municipal sponsors following the enactment of permissive legislation by New York State in 1973. WROTB is established as a public benefit corporation. Its geographical area is comprised of seventeen (17) counties, fifteen (15) of which participate as members of WROTB, and the two (2) cities of Rochester and Buffalo. The statutory objective of WROTB is:

WROTB began its pari-mutuel wagering operations in May of 1974 with twenty-nine (29) branch facilities and a telephone betting operation opened by 1974’s year end. Today, WROTB is a multi-faceted gaming enterprise which operates the following:

· Six (6) traditional brick and mortar off-track betting facilities.

· One (1) “enhanced” branch facility defined as having food concession services on-site.

· Twenty-three (23) EZ Bet locations.

· One internet wagering site referred to as “Batavia Bets”.

· One telephone betting center referred to as “Dial-A- Bet” located at Batavia Downs Gaming.

· One inter-track wagering (ITW) facility located at Batavia Downs Gaming.

· Operation of a seventy-one (71) day live harness racing meet conducted at Batavia Downs Gaming.

· Operation of a video lottery gaming facility located at Batavia Downs Gaming with 946 gaming machines.

· Operation of food and beverage venues located at Batavia Downs Gaming.

Diversity, Equity, and Inclusion are important to WROTB. Bidders are expected to comply with all applicable non-discrimination laws and equal opportunity requirements in connection with this procurement and any resulting contract.

1.5 Specifications

1. Contractor shall furnish and deliver all necessary labor, materials, equipment and transportation required to provide dumpster refuse and recycling collection and disposal services.

2. The contract term shall be for a period of 36 months, from October 1, 2026, through September 30, 2029.

3. Contractor shall respond to all missed collections within twenty-four hours or the next service day.

4. Contractor shall properly label all containers and all containers provided shall meet all Federal, County and City health and safety regulations.

5. Contractor shall maintain all containers in a clean and sanitary condition and regularly rotate if needed.

6. Contractor will provide:

7. The contractor shall service the (2) 8-yard dumpsters 4 x’s per week on Monday, Wednesday, Thursday, Friday. The 8-yard cardboard container shall be serviced 1x per week. The 3 – 40-yard containers shall be on a call-in basis.

8. Total bid price shall include the cost of all fees, labor, materials, and equipment necessary to complete the work as described in these bid specifications.

9. This bid may be awarded to multiple contractors based on pricing submitted.

10. It is not required for the contractor to bid on all containers.

Western Regional Off-Track Betting Corporation Public Bid – Waste Removal Services

1.6 Submission of Bid

To be considered, bidders must submit a complete response to this bid package. Bidders that do not respond to all requested information, or that fail to clearly identify any exceptions, may have their bids rejected.

Sealed bids will be received at the address below on or before 2:00 p.m. EST on Thursday, September 3, 2026, at which time bids will be publicly opened and read.

Director of Purchasing/Procurement Officer

All bids must be accompanied by the following documents in order to be considered: Non-Collusion Bidding Certification pursuant to New York General Municipal Law § 103-d; Offerer’s Affirmation of Understanding of and Agreement pursuant to New York State Finance Law § 139-j; Offerer’s Certification of Compliance pursuant to New York State Finance Law § 139-k(5); Offerer Disclosure of Prior Non-Responsibility Determinations pursuant to New York State Finance Law § 139-k; references page; and any other forms required by this bid package.

1.7 Insurance Requirements

The successful bidder shall furnish WROTBC Certificates of Insurance indicating the type, amount, class of operations, coverage effective dates and expiration dates of such policies. Such certificates shall also contain substantially the following statement: “The insurance covered by this certificate will not be cancelled or materially altered except (a) after ten (10) days written notice has been received by WROTBC and (b) the Unlimited Indemnity shown in the contract documents is included.” WROTBC shall be named as “additional insured” on bidder provided Certificate.

Insurance requirements are as follows:

Public Bid – Waste Removal Services

1.8 Clarification of Specifications

Questions arising from this Invitation for Bids must be submitted in writing to the Procurement Officer listed in this bid package. Questions and answers will be provided by written addendum to all known recipients of the bid package. Each bidder must acknowledge receipt of all addenda in its bid. During the restricted period, bidders may not contact any WROTB officer, employee, representative, or consultant regarding this procurement except through the Procurement Officer or as otherwise permitted by law. Prohibited contact may be grounds for bidder disqualification.

1.9 Addenda

In the event it becomes necessary to revise any part of the specifications, an addendum will be provided to all that received the bid package. An acknowledgement of such addenda, if any, must be submitted with bidder’s response.

2.0 Sales Tax

The Western Regional Off-Track Betting Corporation is exempt from paying any State and Local sales tax. Vendors shall not include any such taxes in their bids.

2.1 Prevailing Rates of Wage

The successful bidder will be required to pay each laborer, workman or mechanic employed by the contractor or sub-contractor not less than the New York State Department of Labor prevailing rates of wages, which are included in this bid package. The successful bidder, as required by section 220 of the New York State Labor Law (paragraph 3-a) which was amended on March 13, 1997:

“………shall submit to the department of jurisdiction within thirty days after issuance of its first payroll, and every thirty days thereafter, a transcript of the original payroll record…….subscribed and affirmed as true……..”

2.2 Investigations

WROTB reserves the right to conduct any investigations necessary to verify information submitted by a bidder and/or to determine the bidder’s capability to fulfill the terms and conditions described herein. WROTB reserves the right to visit a prospective bidder’s place of business to determine the existence of the company and the management capabilities required to administer this contract. WROTB will not consider bidders that are in arrears to WROTB, in bankruptcy, or in the hands of a receiver at the time of bid submission or at any time of selection.

2.3 Reservation of Rights

WROTB reserves the right to reject any or all bids, in whole or in part, to waive any informality or irregularity in any bid, and to make an award only if WROTB determines that doing so is in its best interest. WROTB is not obligated by issuance of this Invitation for Bids to make an award. All bid materials submitted become the property of WROTB.

2.4 Material Submitted

All rights, title, and interest in materials submitted by a bidder shall vest in WROTB upon submission, without obligation or liability by WROTB to the bidder. WROTB may use materials submitted as necessary to evaluate the bid and administer any resulting contract.

Western Regional Off-Track Betting Corporation Public Bid – Waste Removal Services

2.5 Procurement Policy

Pursuant to New York State Finance Law §§ 139-j and 139-k, this Invitation for Bids includes and imposes certain restrictions on communications between WROTB and bidders during the procurement process. Bidders are restricted from making contacts during the restricted period except with WROTB’s designated Procurement Officer or as otherwise permitted by law. WROTB’s Procurement Officer for this procurement is identified in this bid package. Bidders must submit the required New York State Finance Law § 139-j Affirmation of Understanding, New York State Finance Law § 139-k Certification of Compliance, and New York State Finance Law § 139-k Disclosure of Prior Non-Responsibility Determinations. Certain findings of non-responsibility may result in rejection for contract award, and two findings within a four-year period may result in debarment from obtaining procurement contracts. Further information about these requirements may be obtained from the Procurement Officer.

WROTB reserves the right to terminate any resulting contract if it is found that a certification filed by the bidder pursuant to New York State Finance Law § 139-k was intentionally false or intentionally incomplete. Upon such finding, WROTB may exercise its termination right by providing written notice to the bidder in accordance with the notice terms of the contract. WROTB further reserves the right to reject any or all bids if deemed to be in the best interest of WROTB and to waive any informalities or irregularities therein.

Bidder cannot currently, nor within the last five (5) years, be suspended, debarred, or similarly declared ineligible from state or federal contracting. By submitting a bid, bidder certifies that it is not currently under investigation by any state, local, or federal agency or authority.

FAILURE TO SUBMIT ANY REQUIRED ITEM WITH THE BID MAY BE CAUSE FOR REJECTION

Document Required Bidders Initials

Bid Proposal

Acknowledgement of receipt of addenda

Non-Collusion Bidding Certification pursuant to New York General Municipal Law § 103-d

References

New York State Finance Law § 139-k Certification of Compliance

New York State Finance Law § 139-k Disclosure of Prior Non-Responsibility Determinations

New York State Finance Law § 139-j Affirmation of Understanding

THE UNDERSIGNED BIDDER HEREWITH SUBMITS THE ABOVE REQUIRED DOCUMENTS.

PRINT OFFICIAL COMPANY NAME:

SIGNED BY:

PRINT NAME AND TITLE:

DATE:

THIS CHECKLIST IS REQUIRED TO BE INITIALED AND SIGNED WHERE INDICATED

AND RETURNED WITH ALL DOCUMENTS

REFERENCES - Bidders must supply a minimum of three (3) references based on projects of a similar nature.

COMPANY/FIRM _________________________

CONTACT NAME

COMPANY/FIRM _________________________

CONTACT NAME

COMPANY/FIRM _________________________

CONTACT NAME

BIDDERS MUST SIGN BELOW AND RETURN THIS SHEET WITH THEIR BID DOCUMENTS

SIGNATURE COMPANY NAME

PRINTED NAME OF PERSON ABOVE ADDRESS

TITLE CITY, STATE & ZIP CODE

DATE TELEPHONE NUMBER

NON-COLLUSION BIDDING CERTIFICATION

By submission of this bid, the authorized representative signing on behalf of any bidder certifies, and in the case of a joint bid, each party thereto certifies as to its own organization, under penalty of perjury, that to the best of the representative’s knowledge and belief:

In compliance with this invitation for bids and subject to the conditions thereof, the undersigned offers and agrees, if this bid is accepted within forty-five (45) days from the date of the opening, to furnish any and all items upon which prices are submitted.

AUTHORIZED REPRESENTATIVE BUSINESS NAME

PRINT NAME ADDRESS

TITLE CITY, STATE & ZIP CODE

DATE TELEPHONE #

EMPLOYER TAX ID FAX NUMBER

OR SOCIAL SECURITY #

YOU MUST SIGN AND RETURN THIS SHEET WITH YOUR BID

YOU MUST SIGN AND RETURN THIS SHEET WITH YOUR BID

Offerer's Certification of Compliance with State Finance Law § 139-k(5)

New York State Finance Law §139·k(5) requires that every Procurement Contract award subject to provisions of State Finance Law §139-k or §139-j shall contain a certification by the Offerer that all information provided to the Office of General Services with respec.t to State Finance law §139-k is complete, true, and accurate.

Offerer Certification:

I certify that all information provided to the Western Regional Off-Track Betting Corporation with respect to State Finance Law §139-k is complete, true, and accurate.

By: Date: _

Name:

Title:

Procurement Lobbying Termination

Western Regional Off-Track Betting Corporation reserves the right to terminate this contract in the event it is found that the certification filed by the Offerer in accordance with New York State Finance Law §139-k was intentionally false or intentionally incomplete. Upon such finding, Western Regional Off-Track Betting Corporation may exercise its termination right by providing written notification to the Offerer in accordance with the written notification terms of this contract.

Offerer Disclosure of Prior Non-Responsibility Determinations See instructions on next page before completing this form.

Name of Individual or Entity Seeking to Enter into the Procurement Contract:

Address:

No If yes, please answer the next questions:

Yes

2. Was the basis for the finding of non-responsibility due to a violation of State Finance Law §139-j (Please circle):

No Yes

3. Was the basis for the finding of non-responsibility due to the intentional provision of false or incomplete information to a Governmental Entity? (Please circle):

No Yes

4. If you answered yes to any of the above questions, please provide details regarding the finding of non-responsibility below and attach additional pages as necessary.

Governmental Entity:

Date of Finding of Non-responsibility:

Basis of Finding of Non-Responsibility:

5. Has any Governmental Entity or other governmental agency terminated or withheld a Procurement Contract with the above-named individual or entity due to the intentional provision of false or incomplete information? (Please circle):

No Yes

6. If yes, please provide details below and attach additional pages as necessary.

Governmental Entity: Date of Termination or Withholding of Contract _ Basis of Termination or Withholding:

Offerer certifies that all information provided to the Governmental Entity with respect to State Finance Law §139-k is complete, true, and accurate.

By: Date:

Signature

Instructions Offerer Disclosure of Prior Non-Responsibility Determinations Background:

New York State Finance Law §139-k (5) obligates a Government Entity to obtain specific information regarding prior non-responsibility determinations with respect to State Finance Law 139-j. In accordance with State Finance Law 139-k, an Offerer must be asked to disclose whether there has been a finding of non-responsibility made within the previous four (4) years by any Governmental Entity due to: (a) a violation of State Finance Law §139·j or (b) the intentional provision of false or incomplete information to a Governmental Entity. The terms "Offerer" and "Governmental Entity” are defined in State finance Law§ 139-k. State Finance Law §139-j sets forth detailed requirements about the restrictions on Contacts during the procurement process. A violation of State Finance Law §139-j includes, but is not limited to, an impermissible Contact during the restricted period (for example, contacting a person or entity other than the designated contact person, when such contact does not fall within one of the exemptions).

As part of its responsibility determination, State Finance Law §139-k(5) mandates consideration of whether an Offerer fails to timely disclose accurate or complete information regarding the above non-responsibility determination. In accordance with law, no Procurement Contract shall be awarded to any Offerer that fails to timely disclose accurate or complete information under this section, unless a finding is made that the award of the Procurement Contract to the Offerer is necessary to protect public property or public health safety, and that the Offerer is the only source capable of supplying the required Article of Procurement within the necessary timeframe. See State Finance Law §§139-j (3) and §139-k (5).

Instructions:

The Western Regional Off-Track Betting Corporation includes this disclosure request regarding prior non-responsibility determinations in accordance with State Finance Law §139-k in its solicitation of proposals or bid documents or specifications or contract documents, as applicable, for procurement contracts. The attached form is to be completed and submitted by the individual or entity seeking to enter into a Procurement Contract, Supplement or Change Order.

This document must accompany each Bid Form, Letter of Interest, or Proposal submitted by an offerer and will be required for any contract amendments over $15,000. This document must also accompany each Emergency Contract Bid Form.

Offerer’s Affirmation of Understanding of and Agreement pursuant to New York State Finance Law §139-j (3) and §139-j (6) (b)

New York State Finance Law §139-j (6) (b) provides that:

Every Government Entity shall seek written affirmations from all Offerers as to the Offerer’s understanding of and agreement to comply with the Government Entity’s procedures relating to permissible contacts during a Governmental Procurement pursuant to subdivision three of this section.

Offerer affirms that it understands and agrees to comply with the procedures of the Government Entity relative to permissible contacts as required by New York State Finance Law §139-j (3) and §139-j (6) (b).

By: Date:

Name:

Title:

Contractor Name:

Contractor Address:

Certifications and Standard Clauses

These Standard Clauses apply to this Invitation for Bids and any resulting contract issued by the Western Regional Off-Track Betting Corporation (WROTB). Hereafter, the term “WROTB” shall be used to reference the Western Regional Off-Track Betting Corporation.

Independent Contractor The contractor shall perform services as an independent contractor and not as an officer, employee, or agent of WROTB. Nothing contained in this contract shall be construed as creating a relationship of employer and employee between WROTB and the contractor or any of its personnel.

Termination for Convenience WROTB reserves the right to terminate the contract for convenience and without cause, upon thirty (30) days’ written notice to the consultant. In the event of such termination, the consultant shall be entitled to compensation for goods or services satisfactorily provided up to the effective date of termination but shall not be entitled to recover any additional damages or anticipated profits on work not performed.

Termination for Cause WROTB reserves the right to terminate the contract immediately for cause if the successful bidder fails to perform its obligations, violates applicable laws or standards, or otherwise materially breaches the terms of the contract.

Compliance with Laws The successful bidder shall comply with all applicable federal, state, and local laws, rules, and regulations, including those of the New York State Gaming Commission, in connection with the performance of the contract.

Confidentiality The successful bidder shall treat as confidential all non-public information obtained during the course of the contract. Such information shall not be disclosed except as required by law or with the prior written consent of WROTB.

Records Retention and Work Product WROTB reserves the right to require the successful bidder to maintain and provide access to records related to the contract, in a scope and for a period of time appropriate to the nature of the engagement. Such records may include, but are not limited to, documents relating to performance, deliverables, billing, and any goods or work product provided under the contract.

Assignment and Subcontracting The bidder shall not assign, transfer, or subcontract any portion of the contract without the prior written consent of WROTB.

Indemnification To the fullest extent permitted by law, the successful bidder shall defend, indemnify, and hold harmless WROTB, its affiliates, and their respective directors, officers, employees, representatives, and agents from and against any and all claims, actions, proceedings, losses, liabilities, damages, penalties, fines, costs, and expenses including attorneys’ fees and costs, arising out of or relating to the bidder’s bid, the bidder’s performance under the contract, any act or omission of the bidder or its personnel, or any breach or default by the bidder.

Non-Discrimination The bidder agrees that, in the performance of this contract, it will not discriminate against any employee or applicant for employment because of race, creed, color, religion, sex, sexual orientation, gender identity or expression, national origin, age, disability, marital status, veteran status, or any other characteristic protected by applicable federal, state, or local law. The bidder shall take affirmative steps to ensure that applicants are employed, and that employees are treated during employment, without regard to these protected categories.

Insurance and Workers’ Compensation The successful bidder shall furnish WROTB Certificates of Insurance indicating the type, amount, class of operations, coverage effective dates, and expiration dates of such policies. Such certificates shall also contain substantially the following statement:

“The insurance covered by this certificate will not be cancelled or materially altered except (a) after ten (10) days’ written notice has been received by WROTB and (b) the Unlimited Indemnity shown in the contract documents is included. ”WROTB shall be named as an additional insured on bidder-provided certificates. Insurance shall be primary and non-contributory.

The bidder shall be solely responsible for the payment of all required premiums and shall remain liable for any deductibles, self-insured retentions, or claims in excess of stated coverage limits.

WROTB reserves the right to modify or waive specific insurance requirements based on the nature of the agreement.

Non-Collusive Bidding By submission of a bid, the bidder certifies under penalty of perjury that the prices in its bid have been arrived at independently and without collusion, consultation, communication, or agreement with any other bidder or competitor for the purpose of restricting competition.

Governing Law This contract shall be governed by, and construed in accordance with, the laws of the State of New York.

No Arbitration Disputes involving this contract shall not be subject to mandatory arbitration. Any legal actions shall be brought in a court of competent jurisdiction in New York State.

Reciprocity and Sanctions Provisions The bidder certifies that it is not on any federal or state debarment or sanctions list and will immediately notify WROTB if it becomes subject to such restrictions during the term of the contract.

Final Agreement The bidder agrees and understands that this Invitation for Bids, the bidder’s bid, any addenda, and any written award or purchase order issued by WROTB will be incorporated into and become part of the final agreement.

BID FORM

Hereinafter known as OWNER.

SUBMITTED BY:

Type or print legal bidder’s name.

Hereinafter known as BIDDER.

BE IT KNOWN:

BIDDER is thoroughly familiar with all provisions and requirements of the Bidding Documents and the conditions under which the goods and services are required;

BIDDER finds that the proposed Contract Documents are complete, and that they are appropriate for the full, proper, and timely performance of the proposed Contract;

BIDDER possesses and commits to the Owner the technical knowledge, practical experience, management skills and all other resources that will be needed to provide the goods and perform the Work contemplated by, described in, and reasonably inferred from the proposed Contract Documents;

BIDDER represents that this bid is legitimate, and that the various documents which accompany the bid are accurate, complete and true.

NOW THEREFORE BIDDER HEREBY BIDS to furnish all supervision, labor, materials, services, tools, equipment, licenses, permits, and payments of lawful fees and taxes which may be necessary to fully perform the OWNER’S proposed contract.

BID FORM page 1 of 4

PART A: BASE BID SHEET

ITEM #1 –

ITEM #2 –

Two (2) – 8 Yard Recycling Container Frequency – 1 x Per Week – Wednesday

ITEM #3 -

ITEM #4 –

Two (2) – 40 Yard Container – Horse Bedding/Manure Frequency – As needed

PART B: OWNER’S EVALUATION OF BIDS

The Owner will determine the lowest, responsive, and responsible Bidder based on the lowest amount of the

TOTAL BASE BID PRICE.

“BIDDER MUST SUBMIT A COMPLETE BID PACKET”

BID FORM page 2 of 4

PART C: ACKNOWLEDGEMENT OF ADDENDA

BIDDER acknowledges receipt of the following listed Addenda that have been issued for this Project. BIDDER warrants that this Bid fully accounts for all requirements, terms, and conditions of these Addenda. (BIDDER must type or print acknowledged Addenda numbers and dates (OR) check the box indicating that NO ADDENDA WERE RECEIVED.)

Addendum # Date Received:

Addendum # Date Received:

Addendum # Date Received:

NO ADDENDA WERE RECEIVED

PART D: CONTRACT TIME AND LIQUIDATED DAMAGES

The CONTRACT TIME shall be 30 calendar days, commencing on the day next following the Contractor’s receipt of the NOTICE TO PROCEED from the OWNER. It is agreed by the parties that this Contract time subsequently may be adjusted for cause with the terms and conditions of the General Conditions of the Contract.

BID FORM page 3 of 4

PART E: BIDDER’S EXECUTION OF BID FORM

The BIDDER, for good and valuable consideration, including the privilege of bidding for the OWNER’S proposed contract, hereby submits this executed Bid Form with the understanding that it will become binding if accepted by the OWNER through written award, purchase order, or other written contract document.

Bidder’s Legal Name (as shown on Page 1)

(type or print)

(authorized signature)

(type or print name/title signed above)

Bidder’s Legal Address

(street address)

(City/Town, State, Zip Code)

(Phone)

(Email)

(Federal Tax ID or Social Security #)

END OF BID FORM

BID FORM page 4 of 4 image1.png