4-Attachment B LFG Collection System Upgrades Drawings Maps.pdf

PDF 5 MB Posted May 12, 2026

Attached to: Brown Station Road Sanitary Landfill Gas collection & Control System Upgrade - MBE 30%
Solicitation number: 1-26-4-53-5
Issued by: Prince George's County, Maryland

About this file

Written by GovTribe AI · May 14, 2026

This file contains engineering drawings and design plans prepared by SCS Engineers for the Prince George's County Department of the Environment Resource Recovery Division and Maryland Environmental Service regarding landfill gas (LFG) collection system upgrades at the Brown Station Road Sanitary Landfill located at 3500 Brown Station Road, Upper Marlboro, Maryland 20774. The project involves upgrades to Area B of the facility's LFG collection system, including the installation of new header pipes (16-inch and various subheader sizes), solid laterals (4-inch and 6-inch), extraction wells, remote wellheads, isolation valves, and associated infrastructure modifications. The drawings, prepared in November 2025, include an overall site plan, proposed conditions plans for two phases, detailed technical specifications, and a legend identifying existing and proposed LFG collection components, utility locations, and site features based on aerial photography dated December 22, 2024, and utilizing Maryland State Plane Coordinate System (NAD83 2011) with NAVD 1988 vertical datum.

The drawings emphasize that work must be coordinated with the engineer to accommodate actual field conditions, as the majority of construction will occur atop an active solid waste landfill subject to settlement over time. The contractor is responsible for verifying all utility locations prior to construction and ensuring that no LFG well or collection device is offline for more than one day, as the landfill is governed by the Federal Clean Air Act requiring continuous operational status of the LFG collection and control system. Abandoned utilities, wells, and laterals must be capped below grade to prevent air intrusion into the active system. The professional certification is provided by a licensed Maryland Professional Engineer (License No. 30160, expiration date 5-17-2026), and the drawings incorporate data from multiple historical sources including previous pipeline replacement projects, construction drawings, and as-built documents dating from 1990 to 2010.

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Other files

File	Type	Posted
1-1-26-4-53-5 Brown Station Road Sanitary Landfill Gas Bidding Doc.pdf	PDF	May 12, 2026
3-1-26-4-53-5 Addendum No 1.pdf	PDF	May 12, 2026
2-1-26-4-53-5 Brown Station Road Sanitary Landfill Gas Solicitation Doc.pdf	PDF	May 12, 2026
5-1-26-4-53-5 Addendum No 2.pdf	PDF	May 12, 2026

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LFG COLLECTION SYSTEM UPGRADES

BROWN STATION ROAD SANITARY LANDFILL

PREPARED ON BEHALF OF:

PRINCE GEORGE'S COUNTY

DEPARTMENT OF THE ENVIRONMENT

RESOURCE RECOVERY DIVISION

MARYLAND ENVIRONMENTAL SERVICE

PREPARED BY:

SCS ENGINEERS

1881 CAMPUS COMMONS DRIVE, SUITE 450

RESTON, VIRGINIA 20191

(703) 471-6150

WWW.SCSENGINEERS.COM

NOVEMBER 2025

VICINITY/LOCATION MAP

UPPER MARLBORO, MARYLAND

SCS ENGINEERS

"PROFESSIONAL CERTIFICATION. I HEREBY CERTIFY THAT

THESE DOCUMENTS WERE PREPARED OR APPROVED BY

ME, AND THAT I AM A DULY LICENSED PROFESSIONAL

ENGINEER UNDER THE LAWS OF THE STATE OF MARYLAND,

LICENSE NO. 30160, EXPIRATION DATE: 5-17-2026."

INDEX OF DRAWINGS

SHEET NO. TITLE

GENERAL

1 TITLE SHEET

2 LEGEND, NOTES & ABBREVIATIONS

CIVIL

3 OVERALL SITE PLAN

PROPOSED CONDITIONS 1

PROPOSED CONDITIONS 2

DETAILS 1

DETAILS 2

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DDillah Pencil

COUNTY PROPERTY BOUNDARY

100-YEAR FLOODPLAIN (FEMA/COUNTY)

DISPOSAL UNIT BOUNDARY

CAP BOUNDARY

EXISTING 2 FT CONTOUR

EXISTING 10 FT CONTOUR

LFG PIPING

PERFORATED HORIZONTAL COLLECTOR PIPE

UNDERDRAIN

LEACHATE GRAVITY DRAIN

CAP TOE DRAIN

LEACHATE FORCEMAIN

CONDENSATE DRAIN/FORCEMAIN

WATER LINE

STORM DRAIN

ELECTRIC LINE

COMMUNICATION LINE

SANITARY SEWER LINE

FENCE

STREAM

TREELINE

CULVERT

RIP-RAP

NON-PAVED ROAD

PAVED ROAD

STRUCTURE

SEDIMENTATION BASIN

LANDFILL GAS MONITORING PROBE

ABANDONED LANDFILL GAS MONITORING PROBE

LEACHATE MANHOLE

GROUNDWATER MONITORING WELL

CONDENSATE SUMP/MANHOLE

CONDENSATE TRAP

LINER LIMIT BOLLARD

LIGHT POLE

UTILITY POLE

FIRE HYDRANT

WATER LINE VALVE

WSSC MANHOLE

COMMUNICATION PULLBOX

POLE MOUNTED CAMERA

PEPCO MANHOLE

SURVEY CONTROL POINT

SIGN

REMOTE VERTICAL EXTRACTION WELL (NO WELLHEAD)

REMOTE WELLHEAD (NO WELL)

VERTICAL EXTRACTION WELL WITH WELLHEAD

HYBRID VERTICAL EXTRACTION WELL (NO WELLHEAD)

HORIZONTAL COLLECTOR DRAINAGE PIT

LEACHATE COLLECTION SYSTEM - LFG COLLECTION WELL WITH WELLHEAD

LFG ISOLATION VALVE

EXISTING FEATURES

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SCS ENGINEERS

"PROFESSIONAL CERTIFICATION. I HEREBY CERTIFY THAT

THESE DOCUMENTS WERE PREPARED OR APPROVED BY

ME, AND THAT I AM A DULY LICENSED PROFESSIONAL

ENGINEER UNDER THE LAWS OF THE STATE OF MARYLAND,

LICENSE NO. 30160, EXPIRATION DATE: 5-17-2026."

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@ AT

ABAN ABANDON

AC ACRE

APP APPROVED

APPROX. APPROXIMATE

ASPH ASPHALT

AUTH AUTHORIZED

BLDG BUILDING

BM BENCHMARK

C COMMUNICATION

CATV CABLE TELEVISION

CD CHECK DAM

CF CUBIC FEET

CFS CUBIC FEET PER SECOND

CHK CHECKED

℄ CENTERLINE

CMP CORRUGATED METAL PIPE

CNTR CENTER

CO CLEANOUT

CONC CONCRETE

COND CONDUIT

CY CUBIC YARD

DA DRAINAGE AREA

DB DUCT BANK

DEG DEGREE

DEMO DEMOLITION

D.I. DUCTILE IRON PIPE

DIA, Ø DIAMETER

DSN DESIGNED

DUB DISPOSAL UNIT BOUNDARY

DWG DRAWING

DWN DRAWIN

E EASTING / ELECTRIC

E/S EROSION /SEDIMENTATION

EA. EACH

ELEV. ELEVATION

ELEC ELECTRIC

EQ EQUAL

EROS EROSION

ESC EROSION AND SEDIMENT CONTROL

EX. EXISTING

FH FIRE HYDRANT

FL FILTER LOG

FM FORCEMAIN

FP FLOODPLAIN

FT, ' FEET

GCL GEOSYNTHETIC CLAY LINER

GDN GEOCOMPOSITE DRAINAGE NET

GRAL GUARDRAIL

HDPE HIGH DENSITY POLYETHYLENE

HP HIGH POINT

ID INNER DIAMETER

IN, " INCH

INV. INVERT ELEVATION

JNCT JUNCTION

LFG LANDFILL GAS

LOD LIMIT OF DISTURBANCE

LP LIGHT POLE

MAX MAXIMUM

MES MARYLAND ENVIRONMENTAL SERVICE

MH MANHOLE

MIN. MINIMUM

MM MILIMETER

MSW MUNICIPAL SOLID WASTE

N NORTHING

N/A NOT APPLICABLE

NO,# NUMBER

NTS NOT TO SCALE

OD OUTER DIAMETER

OH/OVHD OVERHEAD

OZ OUNCE

% PERCENT

PC POINT OF CURVATURE/PRECAST

PE POLYETHYLENE

PERF PERFORATED

PGC PRINCE GEORGE'S COUNTY

PI POINT OF INTERSECTION

PL PROPERTY LINE

PROJ PROJECT

PROP. PROPOSED

PSI POUNDS PER SQUARE INCH

PT POINT OF TANGENCY

PVC POLYVINYL CHLORIDE

PVMT PAVEMENT

Q/A QUALITY ASSURANCE

QNTY QUANTITY

R RADIUS

RCP REINFORCED CONCRETE PIPE

REQ. REQUIRED

ROW RIGHT OF WAY

RVW REVIEW

S SOUTH

SCD SOIL CONSERVATION DISTRICT

SD STORM DRAIN

SDR STANDARD DIMENSION RATIO

SF SILT FENCE

SS STAINLESS STEEL

STA. STATION

THK THICK

TV CATV

TYP. TYPICAL

UG UNDERGROUND

UNK UNKNOWN

W/ WITH

WSSC WASHINGTON SUBURBAN SANITARY

COMMISSION

COMMONLY USED ABBREVIATIONS

EXPLANATION OF "SECTION" OR "DETAIL" SYMBOL

"SECTION" OR "DETAIL"

IDENTIFICATION NUMBER

OR LETTER.

SHEET NUMBER ON

WHICH "SECTION" OR

"DETAIL" IS DRAWN.

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1. 100-YEAR FLOODPLAIN BASED ON PRINCE GEORGE'S COUNTY DEPARTMENT OF PERMITTING, INSPECTIONS AND ENFORCEMENT (DPIE). APPROVED FLOODPLAIN DELINEATION

PLAN DATED 12-28-2021.

2. BASE MAP INCLUDING TOPOGRAPHIC INFO AND AERIAL IMAGERY COMPILED FROM:

2.1. AERIAL PHOTOGRAPHY DATED 12-22-2024 BY NV5 GEOSPATIAL OF DULLES, VA.

3. GRID BASED ON MD NAD83 (2011) STATE PLANE COORDINATE SYSTEM. VERTICAL DATUM BASED ON NAVD 1988.

4. INFORMATION ON UNDERGROUND/ABOVEGROUND UTILITIES/PIPING IS INCORPORATED FROM:

4.1. "BROWN STATION ROAD SANITARY LANDFILL PIPELINE REPLACEMENT PROJECT" AS-BUILT DRAWINGS DATED 10-27-1999, STATOIL ENERGY OF BETHLEHEM, PA.

4.2. UTILITIES DRAWING (EZX8899) DATED 4-27-2004, SO-DEEP, INC. OF MANASSAS PARK, VA.

4.3. "PHASE IB LFG COLLECTION SYSTEM, BLOWER BUILDING AND FLARES" CONSTRUCTION DRAWINGS DATED 10-6-1994, MAGUIRE GROUP, INC. OF FOXBOROUGH, MA.

4.4. "FLARE STATION MODIFICATIONS AND EXPANSION PLANS" DATED 12-2010, SCS ENGINEERS OF RESTON, VA.

4.5. "BROWN STATION ROAD SANITARY LANDFILL LEACHATE CONVEYANCE/STORAGE SYSTEM" DRAWINGS DATED 10-2-1990, WESTON MANAGERS

DESIGNERS/CONSULTANTS OF WEST CHESTER, PA.

4.6. "BROWN STATION ROAD SANITARY LANDFILL LEACHATE CONVEYANCE/STORAGE SYSTEM" AS-BUILT DRAWINGS DATED 12-11-1992, M.F. RONCA & SONS, INC., OF

BETHLEHEM, PA.

4.7. "BROWN STATION ROAD SANITARY LANDFILL AREA A CLOSURE" AS-BUILT DRAWINGS DATED 11-1995, EA ENGINEERING SCIENCE AND TECHNOLOGY, INC. OF SPARKS, MD.

4.8. "BROWN STATION SOUTH LEG PUMPING STATION UPGRADES" DESIGN DRAWINGS DATED 7-2004, JOHNSON, MIRMIRAN & THOMPSON OF BALTIMORE, MD.

4.9. "AREA B, PHASE II THROUGH V LFG COLLECTION SYSTEM AND FLARE STATION MODIFICATIONS AND EXPANSION" AS-BUILT DRAWINGS, SCS ENGINEERS OF RESTON, VA.

4.10. "BROWN STATION ROAD SANITARY LANDFILL AREA B LFG HEADER PIPE RELOCATION" AS-BUILT DRAWINGS DATED 10-23-2003 PROVIDED BY J.A. RICE, INC. OF

MILLERSVILLE, MD AND SCS ENGINEERS OF RESTON, VA.

5. PERMITTED BOTTOM OF WASTE GRADES ORIGINATE FROM A DRAWING DATED 2-24-2016 PROVIDED BY CEC CIVIL AND ENVIRONMENTAL CONSULTANTS INC. OF FRANKLIN, TN

CITING "PERMITTED BOTTOM OF WASTE GRADES PROVIDED BY EA ENGINEERING, SCIENCE, AND TECHNOLOGY DATED JANUARY 2015."

DATA SOURCES:

1. THE LOCATIONS OF KNOWN UTILITIES SHOWN HEREIN ARE APPROXIMATE BASED ON SITE RECORDS. IT IS THE CONTRACTOR'S RESPONSIBILITY TO VERIFY LOCATIONS OF ALL

UTILITIES PRIOR TO CONSTRUCTION.

2. THE LANDFILL IS AFFECTED BY THE FEDERAL CLEAN AIR ACT WHICH REQUIRES THAT THE LFG COLLECTION AND CONTROL SYSTEM (LFGCCS) BE OPERATIONAL AT ALL TIMES.

AT NO TIME DURING THE MODIFICATION TO THE LFGCCS SHALL ANY LFG WELL OR COLLECTION DEVICE BE OFFLINE FOR MORE THAN ONE DAY. ALL WORK ON THE ACTIVE LFGCCS SHALL BE COORDINATED WITH THE ENGINEER TO MINIMIZE LFG DOWNTIME OR THE INTRUSION OF OXYGEN INTO THE LFG SYSTEM.

3. THE EXISTING TOPOGRAPHY WAS GATHERED FROM AERIAL PHOTOGRAPHY METHODS THAT IS KNOWN TO HAVE AN ACCURACY OF +- 0.5 FEET, ON THE VERTICAL AXIS. THE CONTACTOR SHALL ACCOUNT FOR THIS LEVEL OF ACCURACY IN ITS WORK AND BID PAYMENT ESTIMATES.

4. NOTE THE INFORMATION CONTAINED IN THESE DOCUMENTS ARE PROPRIETARY TO SCS ENGINEERS. THIS DOCUMENT IS PREPARED FOR THIS SPECIFIC SITE AND INCORPORATES CALCULATIONS BASED ON DATA AVAILABLE AT THE TIME IT WAS PREPARED. BY ACCEPTING AND USING THESE DOCUMENTS, PRINCE GEORGE'S COUNTY AND MARYLAND ENVIRONMENTAL SERVICE AGREE TO PROTECT ITS CONTENTS FROM FURTHER DISSEMINATION. THE CONTENTS OF THIS DOCUMENT ARE NOT TO BE REPRODUCED OR COPIED IN WHOLE OR IN PART WITHOUT THE WRITTEN PERMISSION OF SCS ENGINEERS.

GENERAL NOTES:

N 429500

N 430000

N 430500

N 431000

N 431500

N 432000

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N 433000

N 433500

N 429500

N 430000

N 430500

N 431000

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N 433500

N 429500

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N 430500

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N 431500

N 432000

N 432500

N 433000

N 433500

N 429500

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N 430500

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N 432000

N 432500

N 433000

N 433500

N 429500

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N 430500

N 431000

N 431500

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N 433000

N 433500

N 429500

N 430000

N 430500

N 431000

N 431500

N 432000

N 432500

N 433000

N 433500

N 429500

N 430000

N 430500

N 431000

N 431500

N 432000

N 432500

N 433000

N 433500

E 1371500

E 1369500

E 1370000

E 1370500

E 1371000

E 1371500

E 1372000

E 1372500

E 1373000

E 1373500

E 1374000

E 1374500

E 1375000

E 1369500

E 1370000

E 1370500

E 1371000

E 1371500

E 1372000

E 1372500

E 1373000

E 1373500

E 1374000

E 1374500

E 1375000

E 1369500

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E 1370500

E 1371000

E 1371500

E 1372000

E 1372500

E 1373000

E 1373500

E 1374000

E 1374500

E 1375000

E 1369500

E 1370000

E 1370500

E 1371000

E 1371500

E 1372500

E 1373000

E 1373500

E 1374000

E 1374500

E 1375000

E 1369500

E 1370000

E 1370500

E 1371000

E 1371500

E 1372000

E 1372500

E 1373000

E 1373500

E 1374000

E 1374500

E 1375000

LOD

LODLOD

LOD

LODLOD

LOD

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SCS ENGINEERS

"PROFESSIONAL CERTIFICATION. I HEREBY CERTIFY THAT

THESE DOCUMENTS WERE PREPARED OR APPROVED BY

ME, AND THAT I AM A DULY LICENSED PROFESSIONAL

ENGINEER UNDER THE LAWS OF THE STATE OF MARYLAND,

LICENSE NO. 30160, EXPIRATION DATE: 5-17-2026."

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N 431000

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N 431000

N 431500

N 432000

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N 431000

N 431500

N 432000

N 432500

E 1371500

E 1369500

E 1370000

E 1370500

E 1371000

E 1371500

E 1372000

E 1372500

E 1369500

E 1370000

E 1370500

E 1371000

E 1371500

E 1372000

E 1372500

LOD

TIE IN TO

EXISTING LATERAL

APPROX. 4' DEPTH

(SEE NOTE 3)

-3

-3%

-3

-3%

-3

-3%

8" SUBHEADER

TIE IN

ROAD CROSSING

TIE IN TO NEW SUBHEADER WITH

REDUCING TEE (TYP.)

TIE IN

EXISTING WELL

MODIFICATION

TIE IN

EX. TOP OF HEADER PIPE

APPROX. DEPTH 3'

(SEE NOTE 3)

ISOLATION

VALVE

TIE IN TO EXISTING LATERAL

APPROX. DEPTH 4'

(SEE NOTES 2 & 3)

TIE IN TO

EXISTING LATERAL

APPROX. DEPTH 3'

(SEE NOTE 3)

NEW HEADER TIE-IN

TO EXISTING HEADER

LOW POINT

FUTURE CAPPING

AREA BOUNDARY

FUTURE CAPPING

AREA BOUNDARY

INSTALL PIPE

CAP (TYP.)

INSTALL PIPE

CAP (TYP.)

INSTALL PIPE

CAP (TYP.)

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LEGEND:

MAJOR CONTOURS- EXISTING

MINOR CONTOURS - EXISTING

EXISTING LFG EXTRACTION WELL

MODIFIED LFG EXTRACTION WELL (SEE NOTE 2)

PROPOSED LFG EXTRACTION WELL

PROPOSED REMOTE EXTRACTION WELL

EXISTING REMOTE EXTRACTION WELL

MODIFIED REMOTE EXTRACTION WELL (SEE NOTE 2)

EXISTING SOLID LATERAL

EXISTING HEADER

EXISTING PERFORATED LATERAL

PROPOSED 4" SOLID LATERAL

PROPOSED 6" SOLID LATERAL

PROPOSED 16" HEADER

PROPOSED 8" SUBHEADER

PROPOSED 10" SUBHEADER

PROPOSED REMOTE WELLHEAD

PROPOSED ISOLATION VALVE

PROPOSED ABANDONED UTILITIES (SEE NOTE 4)

PIPE CAP/ APPROXIMATE UTILITY DISCONNECT POINT

FUTURE CAPPING AREA BOUNDARY

HIGH POINT

ROAD CROSSING

SCS ENGINEERS

"PROFESSIONAL CERTIFICATION. I HEREBY CERTIFY THAT

THESE DOCUMENTS WERE PREPARED OR APPROVED BY

ME, AND THAT I AM A DULY LICENSED PROFESSIONAL

ENGINEER UNDER THE LAWS OF THE STATE OF MARYLAND,

LICENSE NO. 30160, EXPIRATION DATE: 5-17-2026."

NOTES:

1. TOPOGRAPHIC INFORMATION BASED UPON SURVEY CONDUCTED BY NV5

GEOSPATIAL ON DECEMBER 22, 2024 AND ANTICIPATED GRADES ATOP

AREA B, AS THE PLATEAU IS PRESENTLY BEING LANDFILLED.

2. DISCONNECT THE WELL FROM THE EXISTING LATERAL. CONNECT THE

WELL TO THE NEW LATERAL WITH PROPER SLOPE FOR DRAINAGE.

REORIENT ELBOWS ON REMOTE WELL AS NECESSARY.

3. EXISTING DATA SHOWN HEREON HAS BEEN REPRODUCED FROM

DRAWINGS PROVIDED TO SCS ENGINEERS BY OTHERS, DOES NOT

NECESSARILY REPRESENT AS-BUILT CONDITIONS. MOREOVER, THE

MAJORITY OF THE WORK WILL BE CONSTRUCTED ATOP AN ACTIVE SOLID

WASTE LANDFILL WHICH IS KNOWN TO SETTLE OVER TIME AS THE WASTE

DECOMPOSES. IT IS CONTRACTOR'S RESPONSIBILITY TO VERIFY AS-BUILT

CONDITIONS THAT INTERFACE WITH NEW CONSTRUCTION AND NOTIFY

ENGINEER IMMEDIATELY IF CONDITIONS VARY FROM THOSE SHOWN

HEREON. ALIGNMENT OF HEADERS AND LATERALS SHALL BE

COORDINATED WITH ENGINEER TO ACCOMMODATE ACTUAL FIELD

CONDITIONS AT TIME OF CONSTRUCTION AND AT NO ADDITIONAL COST.

4. ABANDONED/CUT UTILITIES, WELLS, AND LATERALS TO BE CAPPED

BELOW GRADE TO PREVENT AIR INTRUSION INTO ACTIVE LFG SYSTEM.

N 431500

N 432000

N 432500

N 433000

N 431500

N 432000

N 432500

N 433000

N 431500

N 432000

N 432500

N 433000

E 1371000

E 1371500

E 1372000

E 1372500

E 1373000

E 1373500

E 1371000

E 1371500

E 1372000

E 1372500

E 1373000

E 1373500

LOD

LODLOD

LOD

LODLOD

LOD

EXISTING LATERAL

APPROX. 4' DEPTH

-3

-3%

-3

-3%

-3

-3%

NEW HEADER TIE IN TO

EXISTING HEADER

8" SUBHEADER

TIE IN

ROAD CROSSING

TIE IN TO NEW HEADER WITH

REDUCING TEE (TYP.)

TIE IN

EXISTING WELL

MODIFICATION

10" SUBHEADER

TIE IN

EX. TOP OF HEADER PIPE

APPROX. DEPTH 3'

(SEE NOTE 3)

ISOLATION

VALVE

NEW WELL MANIFOLD CONNECTION

TIE IN TO

EXISTING LATERAL

APPROX. DEPTH 3'

(SEE NOTE 3)

LOW POINT

FUTURE CAPPING

AREA BOUNDARY

FUTURE CAPPING

AREA BOUNDARY

INSTALL PIPE

CAP (TYP.)

INSTALL PIPE

CAP (TYP.)

INSTALL PIPE

CAP (TYP.)

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SCS ENGINEERS

"PROFESSIONAL CERTIFICATION. I HEREBY CERTIFY THAT

THESE DOCUMENTS WERE PREPARED OR APPROVED BY

ME, AND THAT I AM A DULY LICENSED PROFESSIONAL

ENGINEER UNDER THE LAWS OF THE STATE OF MARYLAND,

LICENSE NO. 30160, EXPIRATION DATE: 5-17-2026."

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LEGEND:

MAJOR CONTOURS- EXISTING

MINOR CONTOURS - EXISTING

EXISTING LFG EXTRACTION WELL

MODIFIED LFG EXTRACTION WELL (SEE NOTE 2)

PROPOSED LFG EXTRACTION WELL

PROPOSED REMOTE EXTRACTION WELL

EXISTING REMOTE EXTRACTION WELL

MODIFIED REMOTE EXTRACTION WELL (SEE NOTE 2)

EXISTING SOLID LATERAL

EXISTING HEADER

EXISTING PERFORATED LATERAL

PROPOSED 4" SOLID LATERAL

PROPOSED 6" SOLID LATERAL

PROPOSED 16" HEADER

PROPOSED 8" SUBHEADER

PROPOSED 10" SUBHEADER

PROPOSED REMOTE WELLHEAD

PROPOSED ISOLATION VALVE

PROPOSED ABANDONED UTILITIES (SEE NOTE 4)

PIPE CAP/ APPROXIMATE UTILITY DISCONNECT POINT

FUTURE CAPPING AREA BOUNDARY

HIGH POINT

ROAD CROSSING

NOTES:

1. TOPOGRAPHIC INFORMATION BASED UPON SURVEY CONDUCTED BY NV5

GEOSPATIAL ON DECEMBER 22, 2024 AND ANTICIPATED GRADES ATOP

AREA B, AS THE PLATEAU IS PRESENTLY BEING LANDFILLED.

2. DISCONNECT THE WELL FROM THE EXISTING LATERAL. CONNECT THE

WELL TO THE NEW LATERAL WITH PROPER SLOPE FOR DRAINAGE.

REORIENT ELBOWS ON REMOTE WELL AS NECESSARY.

3. EXISTING DATA SHOWN HEREON HAS BEEN REPRODUCED FROM

DRAWINGS PROVIDED TO SCS ENGINEERS BY OTHERS, DOES NOT

NECESSARILY REPRESENT AS-BUILT CONDITIONS. MOREOVER, THE

MAJORITY OF THE WORK WILL BE CONSTRUCTED ATOP AN ACTIVE SOLID

WASTE LANDFILL WHICH IS KNOWN TO SETTLE OVER TIME AS THE WASTE

DECOMPOSES. IT IS CONTRACTOR'S RESPONSIBILITY TO VERIFY AS-BUILT

CONDITIONS THAT INTERFACE WITH NEW CONSTRUCTION AND NOTIFY

ENGINEER IMMEDIATELY IF CONDITIONS VARY FROM THOSE SHOWN

HEREON. ALIGNMENT OF HEADERS AND LATERALS SHALL BE

COORDINATED WITH ENGINEER TO ACCOMMODATE ACTUAL FIELD

CONDITIONS AT TIME OF CONSTRUCTION AND AT NO ADDITIONAL COST.

4. ABANDONED/CUT UTILITIES, WELLS, AND LATERALS TO BE CAPPED

BELOW GRADE TO PREVENT AIR INTRUSION INTO ACTIVE LFG SYSTEM.

D-R105

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SCS ENGINEERS

"PROFESSIONAL CERTIFICATION. I HEREBY CERTIFY THAT

THESE DOCUMENTS WERE PREPARED OR APPROVED BY

ME, AND THAT I AM A DULY LICENSED PROFESSIONAL

ENGINEER UNDER THE LAWS OF THE STATE OF MARYLAND,

LICENSE NO. 30160, EXPIRATION DATE: 5-17-2026."

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SCS ENGINEERS

"PROFESSIONAL CERTIFICATION. I HEREBY CERTIFY THAT

THESE DOCUMENTS WERE PREPARED OR APPROVED BY

ME, AND THAT I AM A DULY LICENSED PROFESSIONAL

ENGINEER UNDER THE LAWS OF THE STATE OF MARYLAND,

LICENSE NO. 30160, EXPIRATION DATE: 5-17-2026."

5 5

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O A

D U

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SCS ENGINEERS

"PROFESSIONAL CERTIFICATION. I HEREBY CERTIFY THAT

THESE DOCUMENTS WERE PREPARED OR APPROVED BY

ME, AND THAT I AM A DULY LICENSED PROFESSIONAL

ENGINEER UNDER THE LAWS OF THE STATE OF MARYLAND,

LICENSE NO. 30160, EXPIRATION DATE: 5-17-2026."

Sheets and Views

1 TITLE SHEET

3 OVERALL SITE PLAN

4 PROPOSED CONDITIONS 1

5 PROPOSED CONDITIONS 2

6 DETAILS 1

7 DETAILS 2

8 DETAILS 3

File details come from the government source that posted it. Updated May 14, 2026.