Addendum _2 RFP _452_24 Methane Monitoring Se.pdf

RFP #452-24 METHANE MONITORING SERVICES

ADDENDUM #2

RFP Closing Date: December 5, 2024 at 10:30 a.m.

RFP Issue Date: October 21, 2024

RFP Addendum Issue Date: November 6, 2024

By: Melissa Hawk, Purchasing Manager

The following are amendments to the RFP #452-24 Methane Monitoring Services:

1. The following scope of work requirements will be included in the contract:

Detection Groundwater Monitoring is conducted during the first half of the year and

Assessment Groundwater Monitoring is conducted during the second half of the year. The sampling requirements for each event are tabulated on the attached pages. Note that select wells are tested for Monitored Natural Attenuation (MNA) Parameters, including Dissolved

Oxygen (a field test) and must be sampled using a low-flow methodology in accordance with

US EPA SESD PROC-301-R4 or later. Additionally, the report must evaluate the effectiveness of MNA at the facility.

Samples must be delivered to a NELAP-certified laboratory for chemical analyses. Laboratory results are to be analyzed using statistical methods that meet current EPD requirements.

Reporting must be in accordance with EPD requirements and must include, at a minimum, a potentiometric surface map signed by a qualified groundwater scientist, a description of sampling procedures, site history that may help reviewers understand the data better, EPD-required tables as well as more user-friendly tables designed to make review easier, a discussion of sample results and statistical analyses pointing out any detections/exceedances and any anomalies that may relate to detections, and conclusions and recommendations for changes that may be needed in future events.

Methane Monitoring is conducted on a monthly basis currently but will return to quarterly once

6 consecutive events show no exceedances in compliance monitoring points. In accordance with EPD regulations, monitoring is conducted between noon and 6 P.M.

2. The RFP requires that a firm must have operated an active landfill gas extraction system, including well field balancing and flare system operations, but not including surface emissions monitoring, for three landfills within the past five (5) years has been removed.

3. Due to the County’s need to have the methane monitoring services performed monthly, please utilize the attached Price Proposal Form.

4. All other dates, other specifications, terms and conditions remain the same as posted in the

RFP document.

The following are questions and answers to the RFP #452-24 Methane Monitoring Services:

QUESTIONS: The title of the RFQ is “Methane Monitoring Services”, but the scope of work in

Section II (D) also references some groundwater monitoring tasks. Are you seeking bids for all of the post-closure monitoring tasks (methane, groundwater, and surface water) or just for the methane monitoring?

ANSWERS: The title is RFP (Request for Proposal) #452-24 Methane Monitoring Services, which has been utilized since 2011. Yes, we are seeking proposals for all post-closure monitoring tasks.

Company Name Signature of Authorized Representative

Title Date

THIS DOCUMENT MUST BE COMPLETED AND SUBMITTED AS PART OF YOUR PROPOSAL

RFP #452-24 METHANE MONITORING SERVICES

PROPOSER’S PRICE PROPOSAL FORM (SHEET A)

COMPANY NAME: _________________________________________________________

Proposer to provide all materials, labor and equipment needed to complete the Scope of Work. State a FIRM HOURLY RATE in U.S. Dollars for each category and level of competency of each job category you can provide. Requirements for each category shall be in accordance with the Scope of Work in this RFP.

Item Item Description Unit of Measure

Price per

UOM

Extended Cost

1 Ground/Surface Water Detection Monitoring Event

Annually

2 Ground/Surface Water Assessment Monitoring Event

Annually

3 Methane Monitoring Event Monthly

• Proposers must attach applicable licenses and certifications

• All costs, direct and indirect, administrative and all other items incurred by the Proposer must be included in the offered Firm Hourly Rate listed above for the total scope of work as listed in this RFP.

Field sampling, laboratory analysis and report preparation is to be included in the unit price for each item listed above.

• Proposer is to attach additional sheets as needed to list all other personnel and hourly rate that may be used to complete the scope of work as listed in this RFP. These categories will not be part of the weighted cost.

Authorized Signature Title

Print Name Date

THIS PAGE MUST BE COMPLETED AND SUBMITTED AS A PART OF YOUR PROPOSAL

DO NOT INCLUDE ANY COSTS IN THE TECHNICAL PROPOSAL TO AVOID DISQUALIFICATION

Sample Location Well

Depth W at er L ev el

(F ie ld T es t)

Ap p

VO

C

Ap p

I M et al s

M er cu ry

C ya ni de

C hl or id e

R C

R A

M et al s+

N i&

Zn

C O

D

TO

C

GWA-1 50.93 X X X

GWA-2A 58.10 X X X X

GWC-2 36.80 X X X

GWC-3A 21.80 X X X

GWC-4A 37.80 X X X

TW-1 73.10 X

TW-2 77.80 X

TW-3S 27.30 X

TW-3R 53.50 X

TW-4S 26.10 X

TW-4R 32.50 X

TW-5R 92.80 X

TW-6 10.73 X

SPRING NA X X X X X

SWA-1 NA X X X X X

SWC-1 NA X X X X X

SWC-2 NA X X X X X

FB-1 NA X X X

Sample Location

Well Depth W at er

L ev el (F ie ld

T es t)

D is so lv ed Ir on (F ie ld

T es t)

Ap p

VO

C

Fu ll

Ap p

N itr at e

Su lfa te

C hl or id e

M et ha ne

R C

R A

M et al s+

N i&

Zn

C O

D

TO

C

GWA-1 50.93 X X

*GWA-2A 58.10 X X X X X X X

*GWC-2 36.80 X X X X X X X

GWC-3A 21.80 X X

*GWC-4A 37.80 X X X X X X X

TW-1 73.10 X X

TW-2 77.80 X X

TW-3S 27.30 X X

TW-3R 53.50 X X

*TW-4S 26.10 X X X X X X X

*TW-4R 32.50 X X X X X X X

TW-5R 92.80 X X

*TW-6 10.73 X X X X X X X

SPRING NA X X X X

SWA-1 NA X X X X

SWC-1 NA X X X X

SWC-2 NA X X X X

FB-1 NA X