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FERNCO CAP
(WELLHEAD LOCATED ELSEWHERE)

EASY LEVEL
FILTER/REGULATOR INDICATOR
AND CYCLE COUNTER
QED 8" WELL CAP
> (MODEL GWC8283)

AR FLUID
= —
SUPPLY

DISCHARGE

h \ _— 8° SCH BO PVC WELL CASING
rs LEVEL,

LIQUID PROBE.
| SET AT MID WELL DEPTH

S

WASTE

C

AIR, EXHAUST
& DISCHARGE
FITTINGS

I L+t}-— AP4'B BOTTOM LOADING AUTOPUMP (LONG)
ll BY QED ENVIRONMENTAL OR EQUIVALENT,
I APPROVED BY OWNER

|
l| | B'@SCH QD
| I teu sone NEA

FLUID INLET
i et

3' MIN. | ll
+.

BOTTOM OF WELL

DEWATERING PUMP INSTALLATION

({LFG EXTRACTION WELL)

NOT TO SCALE

NOTES:

4. HDPE PIPE FOR GAS COLLECTION SHALL BE SDR 17. FITTINGS MAYBE SDR 17 OR SDR 11

2. SOLID HDPE PIPE SHALL BE BUTT-FUSION WELDED UNLESS OTHERWISE INDICATED.

EXISTING
WELLHEAD

2" QED PRECISION QUICK-CHANGE™
ORIFICE PLATE WELLHEAD
OR EQUIVALENT APPROVED BY ENGINEER

2"@ KANAFLEX OR SOLARGUARD™
FLEXIBLE HOSE WITH CLAMPS
(OR EQUIVALENT APPROVED BY
THE ENGINEER)

NOTE:

WELLHEAD
Sf Assen

HDPE
RISER
PPE

HDPE TEE
WELD (TYP}

t
GAS FLOW
HDPERISER PIPE

(SIZES VARY; 4'9 OR6'D)

*
GAS FLOW

SINGLE REMOTE WELLHEAD
CONNECTION AT EXISTING WELLHEAD

1. WELLHEAD SHALL BE COMPATIBLE WITH
THE CES/LANDTEC GEM-2000™ AND
GEM-S000"™ LANDFILL GAS MONITORS.

FERNCO FLEXIBLE COUPLING

4"@ x 2"@ HDPE REDUCER

SIZES AND
TYPES VARY
4" HDPE PIPE
4.5! MIN.

6" x 4"@ HDPE REDUCER

6" HDPE PIPE

EXISTING GRADE
x

GAS FLOW

GAS FLOWTO.
BLOWER/FLARE
STATION

WELLHEAD ASSEMBLY

—

@

NOT TO SCALE

8'2 SCH 80
PVC PIPE
5/8" HOLES

NOTES:
4. PERFORATIONS SPACED 80° APARTHORIZONTALLY.
2. PERFORATIONS SPACED 4" APART VERTICALLY.

3. 80° AND 270° ROWS STAGGERED 2" BELOW" AND 180" ROWS.

PERFORATED PVC PIPE

2

NOT TO SCALE (LFG EXTRACTION WELLS)

NOTTO SCALE

EXISTING RISERS FOR n
COMPRESSEDAIR “al EXISTING LFG EXTRACTION WELL
SUPPLY AND WITH DEWATERING PUMP
DEWATERING (DEWATERING PUMP NOT SHOWN)
CONDENSATE MAIN
(TO REMAIN)
EXISTING GRADE
+ N % Xe [ 4
2" SDR 9 HDPE PIPE
(COMPRESSED AIR)
&
3°@ SDR 11 HDPE PIPE our mists
(CONDENSATE MAIN) ANee EES

CONNECTION TO EXISTING AIR SUPPLY
AND CONDENSATE MAIN AT EXISTING
DEWATERED LFG EXTRACTION WELL

NOT TO SCALE

ELASTOMERIC

r END CAP (TYP}

6" HDPE PIPE (TYP} —=

[ EXISTING GRADE

| -— AQUABLOK 2080FW

2! MIN. HYDRATED BENTONITE SEAL
OR EQUIVALENT APPROVED
BY ENGINEER

|,-— ROSS

I— 10 oz/yd? NON-WOVEN
GEOTEXTILE

DOT

}-—— 90° ELBOW (OPEN)

4! MIN. |-— STONE AGGREGATE

L 90° ELBOWS: JS
ELEVATION VIEW
CONDENSATE TRAP

NOTTO SCALE {AT LOW POINTS)

SCALE AS NOTED

SANBORN HEAD

DRAWN BY:
DESIGNED BY:

R. CLAY
R. CLAY

E. STEINHAUSER

D BY:

PROJECTMGR: R. CLAY

Pic: E. STEINHAUSER

Mr

45 Nona ©
a eA

A Apa ts

DATE: JANUARY 2021

iy =O

DESCRIPTION ey

CONCRETE BLOCK WALL CORRECTIVE ACTION PROJECT NUMBER
CITY OF NASHUA
FOUR HILLS LANDFILL 3066.21
NASHUA, NEW HAMPSHIRE
SHEET NUMBER:
DETAILS 5 OF6

STR AahDORHERDNaOSIOMTES, MS

NOTES:

HDPE PIPE FOR GAS COLLECTION SHALL BE SDR 17. FITTINGS MAYBE SDR 17 OR SDR 11

n

COMPRESSED AIR PIPE SHALL BE SDR 9 HDPE.

CONDENSATE MAINS SHALL BE SDR 11 HDPE.

Py

NOTE:

4. PROVIDE SLACK IN GEOMEMBRANE BOOTS TO ALLOWFOR FUTURE SETTLEMENT

pO

4. SOLID HDPE PIPE SHALL BE BUTT-FUSION WELDED UNLESS OTHERWISE INDICATED. 3
BENTONITE SEAL

5. ON LANDFILL SIDESLOPES, PROVIDE MINIMUM 2 FEET OF COVER OVER SOLID HDPE PIPE AND.

STABILIZE AGAINST EROSION.
6. EXCESS EXCAVATED WASTE SHALL BE HAULED TO ACTIVE FACE OF THE LANDFILL FOR i

DISPOSAL.

4° MIN,
METALLIC t

WARNING TAPE

EXISTING GRADE 6 MIL. THICK PEWRAP

2"@ SDR 9 HDPE ~

COMPRESSED AIR PIPE

excavarto’)

(MATERIAL
a

2" SDR 9 HDPE PIPE
(COMPRESSED AIR)

3'@ SDR 11 HDPE PIPE
(CONDENSATE MAIN)

I—— 6" SDR 17 HDPE PIPE

6" MIN

3! MIN. ——™|

f~— 2! MIN.

FITTINGS:

NOT TO SCALE

COMBINED PIPE TRENCH

NOT TO SCALE

EXISTING
CONCRETE
BLOCK WALL
(HEIGHT
VARIES)

EXISTING SMOOTH
60-MIL HDPE
GEOMEMBRANE

x
GEOTEXTILES
INSTALL DRAINTUBE™ ROLL ON
GROUND AT EXISTING GRADE
(DRAINTUBE MODEL 600CWLFG2 D25)

BACKFILL WITH
COVER MATERIAL
PROVIDED BY CITY

EXISTING
GRADE \

1"@ PERFORATED DRAINTUBE™
MINLPIPE (TYP)

2% SLOPE (MIN)

cromen

ONE ROLL WIDTH
(2)

SECTION VIEW

DRAINTUBE SURFACE COLLECTION LAYER
INSTALLED OUTSIDE OF SETBACK WALL

QUICK CONNECT
FITTIN

IG

(SUPPLIED BY
DRAINTUBE™)

(@) COMPRESSED AIR PIPE ISOLATION VALVE

8" SCH 80 HDPE PIPE
SOLID PVC PIPE er NEOPREANE SEAL
AND CAULK
GROUND SURFACE
STAINLESS STEEL EXTRUSION WELD
il a BAND CLAMP (TYP}
2"@ HDPE BALL VALVE WITH ENCLOSED i HL
STEEL STEM EXTENSION OR APPROVED 14 i
EQUAL, SHALL HAVE THE SAME OR GREATER
PRESSURE RATING AS THE SDR 9 HDPE PIPE. s0-mil TEXTURED 30-mil TEXTURED
L GEOMEMBRANE GEOMEMBRANE
MNPT C
‘TRANSITION “> LO
PVC PIPE HDPE PIPE
NOT TO SCALE
HEAT BOND
GEOTEXTILES
SNAP
COUPLER
— ONE ROLL OTH ————_____+|
HEAT BOND 1" PERFORATED
GEOTEXTILES ar ee)
I !
| I EXISTING
| \ EXITING SECTION VIEW
I I BLOCK WALL
I |
! 7
| ! -+¥—— 10" —|
I !
\ 1" PERFORATED
I DRAINTUBE™
| \ MINL-PIPE (TYP}
P\X Tp fe
I !
I t
- = ! SNAP
a LLU LD \ COUPLER
\ 6" SOLID HDPE PIPE J _!
END CAP 2% MIN. |
ld
PLAN VIEW
PLAN VIEW

DRAINTUBE CONNECTION TO HDPE PIPE

DRAINTUBE ROLL

JOINING (ENDS)

————

NOT TO SCALE NOT TO SCALE
NOTTO SCALE
CONCRETE BLOCK WALL CORRECTIVE ACTION PROJECT NUMBER
DRAWN BY: R. CLAY
DESIGNED BY: R. CLAY CITY OF NASHUA
. FOUR HILLS LANDFILL 3066.21
S N B O R N H E D SCALE AS NOTED D BY: E. STEINHAUSER NASHUA, NEW HAMPSHIRE
f \ f \ PROJECTMGR: R. CLAY SHEET NUMBER:
Pic: E. STEINHAUSER DETAILS 6OFG
DATE: JANUARY 2021

Environmental
Consultants & Contractors

February 4, 2021

EXHIBIT D

Kerry Converse

Environmental Engineer

City of Nashua Solid Waste Department
840 West Hollis Street

Nashua, NH 03062

(603) 589-3420

conversek@nashuanh.gov

Subject: Landfill Gas Collection System Expansion
Four Hills Landfill Concrete Block Wall Corrective Action, Nashua, New Hampshire

Dear Mr. Converse,

In response to your request for pricing SCS Field Services has prepared this proposal to perform the
requested construction Concrete Block Wali Corrective Action at the Four Hills Landfill in Nashua,
New Hampshire.

SCOPE OF SERVICES

Our scope of services is based on the bid documents dated January 2021, our correspondence, and
the attached assumptions.

ASSUMPTIONS AND PROJECT FEES

The required fee schedule is attached, as well as our attached Assumptions and Conditions for the
above referenced project.

GENERAL CONDITIONS

We look forward to discussing any questions or comments you may have concerning this estimate.
Please do not hesitate to call either Guy Lewis at (703) 517-5594 or Stephen Smith at (574) 643-
4324 with any questions or comments.

Sincerely,

Guy F. Lewis Stephen E. Smith
Vice President/Regional Manager Senior Estimator
SCS Field Services SCS Field Services

11260 Roger Bacon Drive, Suite 300, Reston, VA 20190 {| 703-471-6150 | Fax 703-709-837 Bed

FEE SCHEDULE & ASSUMPTIONS AND CONDITIONS
FOUR HILLS LANDFILL

February 4, 2021

FEE SCHEDULE:

See attached Schedule of Values

ASSUMPTIONS AND CONDITIONS:

This proposal is considered confidential and proprietary and may not be disclosed to third
parties without prior written approval by SCS-FS

Work may be performed in OSHA Level D protection. Additional health and safety
requirements can be provided with an adjustment in our price.

This Proposal! does not include: revegetation, erosion or sediment controi, permit fees,
engineering, testing fees, lab analysis fees, or fees required by other parties, such as

Q.A/Q.C,

Conditions which differ materially from the contract documents or what is reasonably
anticipated given the nature of the work are excluded from our bid.

SCS will comply with laws and regulations applicable to the Work in effect as of the date of
the contract. Changes in laws or regulation, including tariffs, embargoes or other matters
which cause a delay or an increase in cost will entitle SCS to an equitable adjustment in
the contract time and price,

This proposal (bid) and Assumptions and Conditions shall become a part of a mutually
satisfactory contract agreement or purchase order.

Page 1 of 2

Schedule of Values

2021 Landfill Gas Expansion

Four Hills Landfill
Nashua, New Hampshire
Prepared January 22, 2021

Estimated

Item _.. . Estimated Cost] Extended
No. Description (w/ unite) ($/units) Prices (3)
la | Mobilization/Demobilization 1 LS ($24,000.00, LS $24,000.00
ib | Drill Rig Mobilization/Demobilization 1 LS [$9,000.00] LS $9,000.00
2 | Vertical LFG Extraction Wells 354 VF | $155.00 | VF $54,870.00
3 | Dewatering Pumps 9 EA (56,350.00| EA) $57,150.00

4 |Pipe Trenches :
a. 6" Solid SDR 17 HDPE Pipe Trench (Single Pipe} 250 LF | $67.00 LF $16,750.00

b, Dual Pipe Trench - Two 6"9 Solid SDR 17 HDPE

Pipes (in same trench] 90 | LF | $108.00] LF | $9,720.00

c. Three-Pipe Trench - 2"@ SDR-9 HDPE Compressed
Air Pipe, 3"@ SDR 11 HDPE Condensate Main, and 6"S 1,325 LF | $66.00 LF $87,450.00
Solid SDR 17 HDPE Pipe for Gas Conveyance

5 __{DrainTube Surface Collection Layer (One Roll Width) 1,000 LF LF j $36,000.00
6 |40-mil thick HDPE Geomembrane 25,300 SF LF | $63,250.00
7 |Wellhead Assemblies
a. Furnish & Install New Wellhead Assemblies 12 EA j $860.00 | EA | $10,320.00
b, Reuse Existing Wellhead Assembles i EA | $350.00 | EA $350.00
8 | Air Line Isolation Valves 2 EA | 3900.00 | EA $1,800.00
9 {Condensate Traps 4 EA ($2,900.00) EA | $11,600.00
9 |Bentonite Seals 6 EA |$2,600.00| EA | $15,600.00
11 [Survey 1 LS ($10,000.00) LS $10,000.00
Total) $407,860.00
Notes:
1. All pipe lengths in the table above are plan view lengths (2D) and do not account forslope.
2, Refer to drawings titled “Concrete Block Wall Corrective Action," dated January 2021.

PA300Gs\3066.21\Souren Files\Schedute of Values\,
20210122 Block Wall LFG Schedule cf Valuesxdsx Page 1 of 1 Sanborn Head & Associates, Inc.

CONSTRUCTION PAYMENT BOND

KNOW ALL MEN BY THESE PRESENTS: that

(Name of Contractor)

(Address of Contractor)

a , hereinafter called Principal,
(Corporation, Partnership or Individual)

and

(Name of Surety)

(Address of Surety)

hereinafter called Surety, are held and firmly bound unto

(Name of Owner)

(Address of Owner)
hereinafter called OWNER and unto all persons, firms, and corporations who or which may furnish
labor, or who furnish materials to perform as described under the contract and to their successors

and assigns, in the total aggregate penal sum of Dollars,

($ ) in lawful money of the United States, for the payment of which sum well and

truly to be made, we bind ourselves, our heirs, executors, administrators, successors, and assigns,
jointly and severally, firmly by these presents.

THE CONDITION OF THIS OBLIGATION is such that whereas, the Principal entered into a
certain contract with the OWNER, dated the day of

20 , a copy of which is hereto attached and made a part hereof for the construction of:

NOW, THEREFORE, if the Principal shall promptly make payment to all persons, firms, and
corporations furnishing materials for or performing labor in the prosecution of the WORK provided
for in such contract, and any authorized extension or modification thereof, including all amounts
due for materials, lubricants, oil, gasoline, coal and coke, repairs on machinery, equipment and
tools, consumed or used in connection with the construction of such WORK, and for all labor cost
incurred in such WORK including that be a subcontractor, and to any mechanic or material man
lienholder whether it acquires its lien by operation of State or Federal Law; then this obligation
shall be void; otherwise to remain in full force and effect.

PY - 1 of 3

PROVIDED, that beneficiaries or claimants hereunder shall be limited to the subcontractors, and
persons, firms, and corporations having a direct contract with the PRINCIPAL or its
SUBCONTRACTORS.

PROVIDED FURTHER, that the said Surety for value received hereby stipulates and agrees
that no change, extension of time, alteration or addition to the terms of the contract or to the
WORK to be performed thereunder or the SPECIFICATIONS accompanying the same shall in
any way affect its obligation on this BOND, and it does hereby waive notice of any such change,
extension of time, alteration or addition to the terms of the contract or to the WORK or to the
SPECIFICATIONS.

PROVIDED, FURTHER that no suit or action shall be commenced hereunder by any claimant:
(a) Unless claimant, other than one having a direct contract with the PRINCIPAL shall have
given written notice to any two of the following: The PRINCIPAL, the OWNER, or the
SURETY above named within ninety (90) days after such claimant did or performed the last of
the work or labor, or furnished the last of the materials for which said claim is made, stating with
substantial accuracy the amount claimed and the name of the party to whom the materials were
furnished, or for whom the work or labor was done or performed. Such notice shall be served by
mailing the same by registered mail or certified mail, postage prepaid, in an envelope addressed
to the PRINCIPAL, OWNER, or SURETY, at any place where an office is regularly maintained
for the transaction business, or served in any manner in which legal process may be served in the
state in which the aforesaid project is located, save that such service need not be made by a
public officer. (b) After the expiration of one (1) year following the date on which PRINCIPAL
ceased work on said CONTRACT, it being understood, however, that if any limitation embodied
in the BOND is prohibited by any law controlling the construction hereof, such limitation shall
be deemed to be amended so as to be equal to the minimum period of limitation permitted by
such law.

PROVIDED, FURTHER, that it is expressly agreed that this BOND shall be deemed amended
automatically and immediately, without formal and separate amendments hereto, upon
amendment to the Contract not increasing the contract price more than 20 percent, so as to bind
the PRINCIPAL and the SURETY to the full and faithful performance of the Contract as so
amended. The term "Amendment", wherever used in this BOND and whether referring to this
BOND, the contract or the loan Documents shall include any alteration, addition, extension or
modification of any character whatsoever.

PROVIDED FURTHER, that no final settlement between the OWNER and the

CONTRACTOR shall abridge the right of any beneficiary hereunder, whose claim may be
unsatisfied.

PY - 2 of 3

IN WITNESS WHEREOF, this instrument is executed

in

which shall be deemed an original,
this

ATTEST:

By:

(Principal) Secretary

(SEAL)

By:

Witness as to Principal

(Address)

ATTEST:

By

Witness as to Surety

(Address)

counterparts, each one of
(number)

day of , 20

Principal
BY
(Address)
(Surety)
BY

Attorney - in - Fact

(Address)

NOTE: Date of BOND must not be prior to date of Contract.
If CONTRACTOR is partnership, all partners should execute BOND.

IMPORTANT: Surety companies executing BONDS must appear on the Treasury Department's
most current list (Circular 570 as amended) and be authorized to transact business in the State of

New Hampshire.

PY - 3 of 3

CONSTRUCTION PERFORMANCE BOND

KNOW ALL MEN BY THESE PRESENTS: that

(Name of Contractor)

(Address of Contractor)

a , hereinafter called Principal,
(Corporation, Partnership or Individual)

and

(Name of Surety)

(Address of Surety)

hereinafter called Surety, are held and firmly bound unto

(Name of Owner)

(Address of Owner)

hereinafter called OWNER, in the total aggregate penal sum
of

Dollars, $( )

in lawful money of the United States, for the payment of which sum well and truly to be made,
we bind ourselves, our heirs, executors, administrators successors, and assigns, jointly and

severally, firmly by these presents.

THE CONDITION OF THIS OBLIGATION is such that whereas, the Principal entered into a

certain contract with the OWNER, dated the day of 20 a

2

copy of which is hereto attached and made a part hereof for the construction of:

NOW, THEREFORE, if the Principal shall well, truly and faithfully perform its duties, all the
undertakings, covenants, terms, conditions, and agreements of said contract during the original
term thereof, and any extension thereof which may be granted by the OWNER, with or without
notice to the Surety and during the one year guaranty period, and if the PRINCIPAL shall
satisfy all claims and demands incurred under such contract, and shall fully indemnify and save
harmless the OWNER from all costs and damages which it may suffer by reason of failure to do
so, and shall reimburse and repay the OWNER all outlay and expense which the OWNER may
incur in making good any default, then this obligation shall be void: otherwise to remain in full
force and effect.

PF - 1 of 2

PROVIDED, FURTHER, that the said surety, for value received hereby stipulates and agrees
that no change, extension of time, alteration or addition to the terms of the contract or to WORK
to be performed thereunder or the specifications accompanying same shall in any way affect its
obligation on this BOND, and it does hereby waive notice of any such change, extension of time
alteration or addition to the terms of the contract or to the WORK or to the specifications.

PROVIDED, FURTHER, that it is expressly agreed that this BOND shall be deemed amended
automatically and immediately, without formal and separate amendments hereto, upon
amendment to the Contract not increasing the contract price more than 20 percent, so as to bind
the PRINCIPAL and the SURETY to the full and faithful performance of the Contract as so
amended. The term "Amendment", wherever used in this BOND and whether referring to this
BOND, the contract or the loan Documents shall include any alteration, addition, extension or
modification of any character whatsoever.

PROVIDED, FURTHER, that no final settlement between the OWNER and the
CONTRACTOR shall abridge the right of any beneficiary hereunder, whose claim may be

unsatisfied.
IN WITNESS WHEREOF, this instrument is executed counterparts, each one of
~~ (number)
which shall be deemed an original,
this day of , 20
ATTEST:
Principal

By:

(Principal) Secretary
(SEAL) BY

(Address)
By:
Witness as to Principal
(Address)
(Surety)
ATTEST: BY
Attomey - in - Fact
By
Witness as to Surety (Address)
(Address)

NOTE: Date of BOND must not be prior to date of Contract.
If CONTRACTOR is Partnership, all partners should execute BOND

IMPORTANT: Surety companies executing BONDS must appear on the Treasury Department's
most current list (Circular 570 as amended) and be authorized to transact business in the State of
New Hampshire

PF - 2 of 2