APPROVED_PLANS_(1).pdf

PDF 26 MB Posted Aug 11, 2026

Attached to: Anacostia II Wastewater Pumping Station Surge Tanks Removal
Solicitation number: 113582
Issued by: Prince George's County, Maryland

About this file

Written by GovTribe AI · Aug 20, 2026

This is an Approved Plans document for the Washington Suburban Sanitary Commission (WSSC) related to the Anacostia II Wastewater Pumping Station Surge Tanks Removal project, located on Andalusia Lane in Prince George's County, Maryland. The project involves the demolition and in-place abandonment of eight existing surge tanks, removal of four trees, demolition and disposal of associated pavement, sidewalk, curb and gutter, equipment and appurtenances, protection of adjacent features and utilities, erosion and sediment control measures, and site restoration. The sealed responses for this project must be submitted via WSSC's eProcurement Portal prior to 2:00 p.m. on Wednesday, September 30, 2026. The approved plans include 24 sheets covering civil, mechanical, structural, and electrical/automation demolition details, with comprehensive erosion and sediment control provisions. The topographic survey fieldwork was completed between June and August 2024, and the plans were approved by the Maryland Department of the Environment Sediment & Stormwater Plan Review Division on November 25, 2025.

The plans specify that the surge tanks contain lead-based paint, requiring demolition to be performed in accordance with contract documents and applicable requirements to minimize airborne dust and waste generation while protecting workers, the public, and the environment. The contractor is responsible for draining and disposal of surge tank contents, removal of contaminated soil, securing all necessary permits, flow diversion and dewatering of existing pipelines, all safety measures including OSHA and MOSH compliance, and maintenance of erosion control measures until permanent stabilization is established. All excess materials and demolition debris become the property of the contractor for disposal at an off-site solid waste landfill, with the contractor required to provide WSSC a credit for all salvaged metal. The contractor must comply with noise restrictions per Prince George's County Code Section 19-122.01, with maximum limits of 85 dBA with an approved noise suppression plan or 75 dBA without one.

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Other files

File	Type	Posted
Anacostia_II_Wastewater_Pumping_Station_Surge_Tanks_Removal_(Addendum_#2_Revision).pdf	PDF	Sep 2, 2026
Anacostia_II_Wastewater_Pumping_Station_Surge_Tanks_Removal.pdf	PDF	Aug 19, 2026
Specifications.pdf	PDF	Aug 12, 2026
MDE_PERMIT.pdf	PDF	Aug 12, 2026
Anacostia_II_Wastewater_Pumping_Station_Surge_Tanks_Geotechnical_Investigation_Report.pdf	PDF	Aug 10, 2026
Anacostia_II_Wastewater_Pumping_Station_Surge_Tanks_Limited_Hazardous_Material_Survey.pdf	PDF	Aug 10, 2026
Mid-Atlantic_Purchasing_Team_Intergovernmental_&_Cooperative_Purchasing_Clause.pdf	PDF	Aug 5, 2026

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PERMIT REQUIREMENTS

DATE REVISIONS

PAGECo. GRID

VICINITY MAP

SCALE

FOR LOCATION OF UTILITIES CALL 8-1-1 OR 1-800-257-7777

OR LOG ON TO www.call811.com OR www.missutility.net 48

HOURS IN ADVANCE OF ANY WORK IN THIS VICINITY

*TO BE ACQUIRED BY APPLICANT

PRINCE GEORGE 203NE04 C3

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.: 62632

EXPIRATION DATE: 03-18-2026

- B

O N

C H

O N

O R

O T

O N

C H

O N

T H

T, A

C C

O R

CONTRACT:

DATE

23303290A

DIVISION MANAGER

FACILITY DESIGN & CONSTRUCTION DIVISION

H O

R Z.

U M

1" = 10,000'

U T

C U

R R

T as o f:

/1 4/

COVER SHEET

LOCATION MAP

WASHINGTON SUBURBAN SANITARY COMMISSION

1700 ANDALUSIA LANE, CAPITOL HEIGHTS, MARYLAND 20743

ANACOSTIA II

WASTEWATER PUMPING STATION

SURGE TANKS REMOVAL

ANACOSTIA II WASTEWATER PUMPING STATION

SURGE TANKS REMOVAL

ISSUED FOR BID

THESE DOCUMENTS CONTAIN

PRIVILEGED AND CONFIDENTIAL

INFORMATION WHICH SHALL NOT BE

REDISTRIBUTED WITHOUT PRIOR WSSC

APPROVAL

1" = 500'

N O

U E

24G-1

WSSC 200' SHEET No.: 203NE04-S

WASHINGTON SUBURBAN SANITARY COMMISSION

WSSC

DELIVERING THE ESSENTIAL

September 4, 2025 - PLOT DATE

G-1 COVER SHEET

G-2 GENERAL NOTES

C-1 EXISTING CONDITIONS PLAN

C-2 DEMOLITION PLAN

C-3 EXCAVATION PLAN

C-4 RESTORATION PLAN

C-5 PROFILES

C-6 EROSION & SEDIMENT CONTROL PLAN

CD-1 EROSION & SEDIMENT CONTROL DETAILS

CD-2 VEGETATIVE STABILIZATION

CD-3 PERMANENT STABILIZATION

CD-4 EROSION & SEDIMENT CONTROL NOTES

CD-5 CIVIL DETAILS

M-1 EAST AND WEST PUMP ROOMS DEMOLITION PLAN

M-2 EAST AND WEST PUMP ROOMS NEW WORK PLANS AND SECTION

M-3 EAST AND WEST PUMP ROOMS CAV DRAIN LINES

M-4 SURGE TANKS REMOVAL DEMOLITION AND NEW WORK PLAN

M-5 SURGE TANKS REMOVAL DEMOLITION

S-1 STRUCTURAL NOTES AND LOWER PLAN

S-2 STRUCTURAL PLAN AT GRADE

S-3 STRUCTURAL UPPER PLAN

S-4 STRUCTURAL SECTIONS I

S-5 STRUCTURAL SECTIONS II

E-1 ELECTRICAL AND AUTOMATION DEMOLITION NOTES

INDEX OF SHEETS

PAGE SHEET

NOS. NOS. DESCRIPTIONANACOSTIA II

WASTEWATER

PUMPING

STATION

10306 Eaton Place, Suite 220 Fairfax, VA 22030 Tel: (703) 691-6500

ANACOSTIA II

WASTEWATER

PUMPING

STATION

AMTRAK MARC PENN LINE

MDE EROSION AND SEDIMENT CONTROL PERMIT

Docusign Envelope ID: F1B58998-AD1B-4C57-B890-87E0B83D03E4

Sep 11, 2025 | 7:01 PM EDT

REVIEWED AND APPROVED FOR SEDIMENT

CONTROL AND STORMWATER MANAGEMENT

UNDER SECTIONS 4-106 AND 4-205

BY: COLLIN HILTNER

DATE:

MARYLAND DEPARTMENT OF THE ENVIRONMENT

SEDIMENT & STORMWATER PLAN REVIEW DIVISION

NOVEMBER 25, 2025

CONTRACT: 23303290A

- B

O N

C H

O N

O R

O T

O N

C H

O N

T H

T, A

C C

O R

DRAWN:

CHECKED:

DESIGN:

OF 24

ANACOSTIA II

WASTEWATER PUMPING STATION

SURGE TANKS REMOVAL

ISSUED FOR BID

THESE DOCUMENTS CONTAIN

PRIVILEGED AND CONFIDENTIAL

INFORMATION WHICH SHALL NOT BE

REDISTRIBUTED WITHOUT PRIOR WSSC

APPROVAL

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.:

EXPIRATION DATE:

WASHINGTON SUBURBAN SANITARY COMMISSION

WSSC

DELIVERING THE ESSENTIAL

U T

C U

R R

T as o f:

/1 4/

9/4/2025 - PLOT DATE

10306 Eaton Place, Suite 220 Fairfax, VA 22030 Tel: (703) 691-6500

GENERAL NOTES G-2

1. LOCATIONS, ELEVATIONS, AND DIMENSIONS OF EXISTING UTILITIES, STRUCTURES, AND

OTHER FEATURES ARE SHOWN ACCORDING TO THE BEST INFORMATION AVAILABLE AT

THE TIME OF PREPARATION OF THESE PLANS, BUT DO NOT PURPORT TO BE

ABSOLUTELY CORRECT. PRIOR TO CONSTRUCTION, CONTRACTOR SHALL VERIFY AND

AGREE TO BE FULLY RESPONSIBLE FOR ANY AND ALL DAMAGES WHICH MIGHT BE

OCCASIONED BY HIS FAILURE TO EXACTLY LOCATE FEATURES AFFECTING THE

PROJECT WORK. ANYTHING NOT SHOWN ON THESE DRAWINGS SHOULD BE BROUGHT

TO THE ATTENTION OF THE ENGINEER AND SHALL NOT CONSTITUTE ADDITIONAL

PROJECT COST, UNLESS APPROVED BY THE ENGINEER.

2. THE CONTRACTOR SHALL CONTACT THE ENGINEER'S OFFICE IMMEDIATELY

CONCERNING ANY CONFLICTS ARISING DURING CONSTRUCTION OF ANY

IMPROVEMENTS SHOWN ON THESE DRAWINGS OR SHOULD ANY FIELD CONDITIONS BE

ENCOUNTERED THAT VARY FROM THE INFORMATION PROVIDED IN THE CONTRACT

DOCUMENTS.

3. CONTRACTOR IS RESPONSIBLE FOR LOCATING AND PROTECTING EXISTING UTILITIES

WHETHER SHOWN OR NOT, AND REPAIRING ALL DAMAGE TO UTILITIES AT NO

ADDITIONAL COST TO WSSC. THE CONTRACTOR SHALL TAKE ALL NECESSARY

PRECAUTIONS TO PROTECT EXISTING MAINS AND UTILITIES.

4. SLANTED AND SCREENED TEXT DENOTES INFORMATION TAKEN FROM OR CALCULATED

FROM AS-BUILT SOURCES THAT HAVE NOT BEEN FIELD VERIFIED. AS-BUILT

INFORMATION WAS TAKEN FROM EXISTING RECORD DRAWINGS. THESE DRAWINGS ARE

AVAILABLE FOR REVIEW BY CONTRACTOR AT OWNER'S CONVENIENCE. UNLESS

OTHERWISE NOTED, ALL INFORMATION OBTAINED FROM AS-BUILT SOURCES HAS NOT

BEEN FIELD VERIFIED.

5. THE TERM "ACCEPTABLE TO ENGINEER" SHALL MEAN WRITTEN ACCEPTANCE BY

ENGINEER TO BE RECEIVED BEFORE WORK IS STARTED.

6. ANY DEVIATION FROM CONTRACT DRAWINGS OR SPECIFICATIONS MUST BE ACCEPTED

BY THE ENGINEER IN WRITING PRIOR TO THE WORK BEING STARTED. ANY DEVIATION

PERFORMED WITHOUT THE ENGINEER'S ACCEPTANCE WILL NOT BE PAID FOR AND MAY

BE REQUIRED TO BE REDONE AT THE CONTRACTOR'S EXPENSE.

7. EXCEPT AS MODIFIED BY THE CONTRACT DOCUMENTS, ALL MATERIALS AND METHODS

OF CONSTRUCTION MUST BE SUPPLIED AND INSTALLED IN STRICT CONFORMANCE

WITH ALL WSSC STANDARDS. THE CONTRACTOR SHALL HAVE A COPY OF ALL

APPLICABLE STANDARD SPECIFICATIONS AND DRAWINGS AT THE WORK SITE AT ALL

TIMES.

8. THE CONTRACTOR SHALL BE RESPONSIBLE FOR COORDINATING WITH THE LOCAL

POWER COMPANY ANY ADDITIONAL SUPPORT OF EXISTING POWER POLES OR

UNDERGROUND UTILITIES, AS REQUIRED FOR PIPE OR STRUCTURE TRENCH

EXCAVATION. ALL COSTS OF SUCH WORK SHALL BE PAID BY THE CONTRACTOR.

9. THE CONTRACTOR SHALL LIMIT HIS/HER ACTIVITY TO WITHIN THE SITE BOUNDARIES.

EXISTING TREES AND SHRUBS MAY BE TRIMMED OR REMOVED ONLY IF ACCEPTABLE

TO THE OWNER OR IF SPECIFICALLY NOTED ON THE DRAWINGS. TRIMMING AND

REMOVAL OF TREES WILL BE AT NO ADDITIONAL COST TO THE OWNER.

10. ALL EROSION CONTROL MEASURES SHALL REMAIN IN PLACE UNTIL THE ENTIRE SITE IS

RE-ESTABLISHED.

11. STAGING LOCATIONS AND LAYDOWN AREAS SHALL BE LOCATED WITHIN THE EXISTING

CONSTRUCTION LIMITS AS NOTED ON PLAN.

12. CONTRACTOR SHALL FIELD VERIFY EXACT LOCATION, ELEVATION, ORIENTATION,

DIMENSIONS, MATERIALS, JOINT TYPES, ETC. OF EXISTING PIPE PRIOR TO SUBMITTING

SHOP DRAWINGS AND ORDERING MATERIAL AND SHALL USE/PROVIDE NECESSARY

FITTINGS AND TRANSITIONS FOR CONNECTIONS AT NO EXTRA COST TO THE OWNER.

THE CONTRACTOR SHALL SUPPORT ALL PIPING AND CONDUITS EXPOSED DURING

CONSTRUCTION. THE CONTRACTOR SHALL BE RESPONSIBLE FOR FLOW DIVERSION

AND DEWATERING OF EXISTING PIPE LINES BEFORE INSTALLING TIE-INS.

13. ALL EXISTING VALVES AND HYDRANTS MUST ONLY BE OPERATED BY WSSC. THE

CONTRACTOR SHALL NOT OPEN/CLOSE EXISTING VALVES, AND COORDINATION OF

VALVE ADJUSTMENTS SHOULD BE MADE AT LEAST THREE (3) DAYS IN ADVANCE OF ANY

NECESSARY OPERATIONS.

14. EXISTING VALVES MAY LEAK, CONTRACTOR SHALL PLAN FOR THIS ACCORDINGLY

PROVIDING PLUGS, DEWATERING PUMPS AND OTHER APPURTENANCES AS NEEDED AT

NO ADDITIONAL COST TO THE OWNER.

15. 6 INCH WIDE MARKING/DETECTOR TAPE SHALL BE REQUIRED 1.5-FEET TO 3-FEET

ABOVE THE CROWN OF PIPE FOR ALL NEW OR EXPOSED BURIED PIPE.

16. ALL EXCESS MATERIALS AND DEMOLITION DEBRIS SHALL BECOME THE PROPERTY OF

CONTRACTOR UNLESS NOTED OTHERWISE, AND SHALL BE DISPOSED OF BY THE

CONTRACTOR AT AN OFF-SITE SOLID WASTE LANDFILL OR OTHER ACCEPTABLE

LOCATION. CONTRACTOR SHALL PROVIDE WSSC A CREDIT FOR ALL SALVAGED METAL.

EXCESS SOIL MUST BE REMOVED FROM THE SITE IMMEDIATELY BY THE CONTRACTOR.

CONTAMINATED SOIL MUST BE REMOVED FROM THE SITE AND PROPERLY DISPOSED

OF. CONTRACTOR WILL BE RESPONSIBLE FOR ALL DISPOSAL COST AND OBTAINING THE

REQUIRED PERMITS.

17. THE CONTRACTOR SHALL TAKE NECESSARY ACTIONS TO MINIMIZE THE TRACKING OF

MUD ONTO THE PAVED ROADWAY/DRIVEWAY DURING CONSTRUCTION. THE

CONTRACTOR SHALL REMOVE MUD/SOIL FROM PAVEMENT DAILY, AS REQUIRED.

18. THE CONTRACTOR IS RESPONSIBLE FOR ALL PROJECT SAFETY INCLUDING, BUT NOT

LIMITED TO, TRENCH EXCAVATION AND SHORING, TRAFFIC CONTROL, CONFINED SPACE

ENTRY AND SITE SECURITY. CONTRACTOR SHALL BE RESPONSIBLE FOR THE SECURITY

OF HIS/HER OWN EQUIPMENT, TOOLS, FACILITIES, MATERIALS, OFFICES, AND OTHER

APPURTENANCES DURING THE LIFE OF PROJECT.

19. THE CONTRACTOR MUST CONFORM TO ALL APPLICABLE OSHA AND MOSH SAFETY

REGULATIONS.

20. THE CONTRACTOR MUST HAVE APPROVED AND CURRENT DRAWINGS AND

SPECIFICATIONS AT THE CONSTRUCTION SITE AT ALL TIMES.

21. THE CONTRACTOR MUST MAINTAIN RED LINE RECORD DRAWINGS AT THE

CONSTRUCTION SITE TO DOCUMENT CONSTRUCTION CHANGES AND INFORMATION.

DRAWINGS WILL BE REVIEWED AT EACH PROGRESS MEETING AND ARE A

PREREQUISITE FOR PROCESSING PAYMENT APPLICATIONS.

22. THE CONTRACTOR MUST OBTAIN ALL NECESSARY PERMITS PRIOR TO CONSTRUCTION.

23. THE CONTRACTOR MUST NOTIFY WSSC AND THE OWNER'S REPRESENTATIVE AT LEAST

(3) THREE DAYS PRIOR TO CONSTRUCTION OF ANY IMPROVEMENT SUBJECT TO

INSPECTION AND/OR MAINTENANCE BY RESPECTIVE AGENCIES.

24. ALL FILL, SUBBASE AND BASE MATERIAL SHALL BE COMPACTED IN ACCORDANCE WITH

SECTION 02300.

25. PROVIDE POSITIVE DRAINAGE AWAY FROM MANHOLES OR STRUCTURES THROUGHOUT

CONSTRUCTION.

26. CONTRACTOR TO VERIFY ELEVATIONS OF EXISTING FOUNDATIONS, TOP OF TANKS, AND

OTHER ELEVATIONS PRIOR TO SUBMITTING PIPING SHOP DRAWINGS.

27. SEE INDIVIDUAL SHEETS FOR ADDITIONAL ABBREVIATIONS, SYMBOLS, LEGENDS,

DETAILS AND NOTES, IF ANY. NOT ALL "STANDARD" DETAILS SHOWN MAY BE

APPLICABLE TO THIS PROJECT.

28. CONTRACTOR SHALL BE RESPONSIBLE FOR DRAINING OF THE SURGE TANKS AND THE

SURGE TANK VAULTS.

29. CONTRACTOR SHALL BE RESPONSIBLE FOR DISPOSAL OF THE CONTENTS OF THE

SURGE TANK AND THE SURGE TANK VAULTS.

30. OWNER HAS RIGHT OF FIRST REFUSAL TO ALL DEMOLISHED ITEMS. CONTRACTOR

SHALL REVIEW WITH THE OWNER ALL ITEMS TO BE DISPOSED OR SALVAGED.

31. CONTRACTOR MUST COMPLY WITH APPLICABLE NOISE RESTRICTIONS, PER THE

PROJECT SPECIFICATIONS OR THE CURRENT PRINCE GEORGE'S COUNTY CODE,

SECTION 19.-122.01, WHICH EVER IS MORE RESTRICTIVE:

(A) 85 dBA IF CONTRACTOR HAS AN APPROVED NOISE SUPPRESSION PLAN FOR THE

CONSTRUCTION ACTIVITY.

(B) 75 dBA IF THE CONTRACTOR DOES NOT HAVE AN APPROVED NOISE SUPPRESSION

PLAN.

GENERAL NOTES

EXISTING OR FUTURE CONDITION DESIGNATION

DETAIL CALL OUT SYMBOLS

SECTION CUT SYMBOLS

DRAWING, SECTION AND DETAIL TITLES

ABBREVIATIONS

A M-1

SECTION A-A

SCALE: 1/8" = 1'-0"

A M-1

DETAIL A

SCALE: 1/8" = 1'-0"

PLAN: SUBTITLE OR DESCRIPTION

SCALE: 1/8" = 1'-0"

SURVEY NOTES:

1. THE TOPOGRAPHIC SURVEY FIELDWORK WAS COMPLETED BETWEEN JUNE AND AUGUST

OF 2024 UNDER THE SUPERVISION OF A LICENSED LAND SURVEYOR FROM PRECISION

MEASUREMENTS, INC.

2. THE MERIDIAN SOURCE OF THIS TOPOGRAPHIC SURVEY IS BASED ON THE

MARYLAND STATE PLANE COORDINATE SYSTEM, NORTH AMERICAN DATUM

1983/2011. THE PROJECT MERIDIAN WAS ESTABLISHED BY PRECISION MEASUREMENTS,

INC. USING CONVENTIONAL GPS METHODS.

3. ELEVATIONS SHOWN ARE A PROJECT DATUM BASED UPON THE ELEVATION OF

THE MANHOLE RIM OF EXISTING I-3 STRUCTURE ON THE PROFILES AS SHOWN

ON AS-BUILT DRAWINGS PROVIDED BY WSSC. TO CONVERT ELEVATIONS SHOWN FROM

PROJECT DATUM TO NVDG 29 SUBTRACT 1.09'.

4. THIS SURVEY WAS PREPARED TO SHOW EXISTING FEATURES AS OF

08/02/2024.

5. THE CONTOUR INTERVALS SHOWN HEREON IS ONE (1) FOOT.

6. THIS SURVEY DOES NOT CONSTITUTE A BOUNDARY SURVEY NOR A SUBDIVISION OF

LAND, AND DOES NOT SHOW EXISTING PROPERTY LINES, EASEMENTS, SETBACK OR

RIGHT-OF-WAYS.

JJS

7/25/2025

62632 03-18-2026

EMH

GAS

METER

15"RCP

CONC. PAD

ELEVATED

CONC. VAULT

UNK. POST

8'± HIGH

SURGE

TANK

SURGE

TANK

SURGE

TANK

SURGE

TANK

SURGE

TANK

SURGE

TANK

SURGE

TANK

SURGE

TANK

CONC. WALK

FOMH

G G

G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G

U G

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UGE

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G E

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UGE

UGE UGE UGE UGE UGE UGE UGE

UGE

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G E

U G

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G E

U G

UGE

UGE UGE UGE UGE UGE UGE UGE

UGE

EOI

TRAV

SCO

TOC EL 19.8±

12'± DEEP

6" CONC.

WALL

W/ WHEEL VALVECONC. VAULT

8'± HIGH

CONC.

STEPS

CONC.

STEP

18.93

CONC.

STEP

(BY O

S) (BY O

FOMH

FO FO FO FO FO FO FO FO FO FO FO FO FO

19 19

TOC EL 20.0±

TOC EL 19.8±

TOC EL 19.8± TOC EL 19.9±

TOC EL 19.9±

TOC EL 19.0± TOC EL 19.0±

T.D.

EMH

RIM=17.38

T/S=16.00'±

INV.=13.94 (15" RCP)

INV.=14.15 (6" PVC FROM BUILDING)

SDMH

RIM=21.73

INV.=11.84 (OUT)

15"RCP

DEPTH=10.46

RIM=18.25

DEPTH=12.86

RIM=18.77

DEPTH=13.35

RIM=17.09

DEPTH=10.98

CAPPED

TOP=18.20

G E

K D

N (D

T.D.

T/S=16.00'±

INV.=13.62 (15" RCP)

INV.=14.22 (3" PVC FROM BUILDING)

TOP=19.15

DEPTH=6.95

G E

K D

N (D

ANACOSTIA II WASTEWATER PUMPING STATION

ANDALUSIA LN

CONTRACT: 23303290A

DATE REVISIONS

- B

O N

C H

O N

O R

O T

O N

C H

O N

T H

T, A

C C

O R

DRAWN:

CHECKED:

DESIGN:

OF 24

ANACOSTIA II

WASTEWATER PUMPING STATION

SURGE TANKS REMOVAL

ISSUED FOR BID

THESE DOCUMENTS CONTAIN

PRIVILEGED AND CONFIDENTIAL

INFORMATION WHICH SHALL NOT BE

REDISTRIBUTED WITHOUT PRIOR WSSC

APPROVAL

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.:

EXPIRATION DATE:

WASHINGTON SUBURBAN SANITARY COMMISSION

WSSC

DELIVERING THE ESSENTIAL

U T

C U

R R

T as o f:

/1 4/

9/4/2025 - PLOT DATE

10306 Eaton Place, Suite 220 Fairfax, VA 22030 Tel: (703) 691-6500

EXISTING CONDITIONS PLAN C-1

PLAN - EXISTING CONDITIONS

SCALE: 1" = 10' 7/25/2025

7/25/2025

57413 03/31/27

APPROVED

BY: COLLIN HILTNER

MD DEPT ENVIRONMENT

SEDIMENT & STORMWATER

PLAN REVIEW DIVISION

EMH

GAS

METER

15"RCP

CONC. PAD

ELEVATED

CONC. VAULT

UNK. POST

8'± HIGH

SURGE

TANK

SURGE

TANK

SURGE

TANK

SURGE

TANK

SURGE

TANK

SURGE

TANK

SURGE

TANK

SURGE

TANK

CONC. WALK

FOMH

G G

G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G

U G

E U

G E

U G

E U

G E

U G

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G E

U G

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G E

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E U

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UGE

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UGE

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G E

U G

E U

G E

U G

E U

G E

U G

UGE

UGE UGE UGE UGE UGE UGE UGE

UGE

EOI

TRAV

SCO

TOC EL 19.8±

12'± DEEP

6" CONC.

WALL

W/ WHEEL VALVECONC. VAULT

8'± HIGH

CONC.

STEPS

CONC.

STEP

18.93

CONC.

STEP

(BY O

S) (BY O

FOMH

FO FO FO FO FO FO FO FO FO FO FO FO FO

19 19

TOC EL 20.0±

TOC EL 19.8±

TOC EL 19.8± TOC EL 19.9±

TOC EL 19.9±

TOC EL 19.0± TOC EL 19.0±

T.D.

EMH

RIM=17.38

T/S=16.00'±

INV.=13.94 (15" RCP)

INV.=14.15 (6" PVC FROM BUILDING)

SDMH

RIM=21.73

INV.=11.84 (OUT)

15"RCP

DEPTH=10.46

RIM=18.25

DEPTH=12.86

RIM=18.77

DEPTH=13.35

RIM=17.09

DEPTH=10.98

CAPPED

TOP=18.20

G E

K D

N (D

T.D.

T/S=16.00'±

INV.=13.62 (15" RCP)

INV.=14.22 (3" PVC FROM BUILDING)

TOP=19.15

DEPTH=6.95

G E

K D

N (D

ANACOSTIA II WASTEWATER PUMPING STATION

ANDALUSIA LN

CONTRACT: 23303290A

DATE REVISIONS

- B

O N

C H

O N

O R

O T

O N

C H

O N

T H

T, A

C C

O R

DRAWN:

CHECKED:

DESIGN:

OF 24

ANACOSTIA II

WASTEWATER PUMPING STATION

SURGE TANKS REMOVAL

ISSUED FOR BID

THESE DOCUMENTS CONTAIN

PRIVILEGED AND CONFIDENTIAL

INFORMATION WHICH SHALL NOT BE

REDISTRIBUTED WITHOUT PRIOR WSSC

APPROVAL

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.:

EXPIRATION DATE:

WASHINGTON SUBURBAN SANITARY COMMISSION

WSSC

DELIVERING THE ESSENTIAL

U T

C U

R R

T as o f:

/1 4/

9/4/2025 - PLOT DATE

10306 Eaton Place, Suite 220 Fairfax, VA 22030 Tel: (703) 691-6500

DEMOLITION PLAN C-2

PLAN - DEMOLITION

SCALE: 1" = 10' 7/25/2025

7/25/2025

57413 03/31/27

APPROVED

BY: COLLIN HILTNER

MD DEPT ENVIRONMENT

SEDIMENT & STORMWATER

EMH

GAS

METER

15"RCP

CONC. PAD

ELEVATED

CONC. VAULT

UNK. POST

8'± HIGH

SURGE

TANK

SURGE

TANK

SURGE

TANK

SURGE

TANK

SURGE

TANK

SURGE

TANK

SURGE

TANK

SURGE

TANK

CONC. WALK

FOMH

G G

G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G

U G

E U

G E

U G

E U

G E

U G

E U

G E

U G

E U

G E

U G

E U

G E

U G

E U

G E

U G

E U

G E

U G

E U

G E

U G

UGE

UGE UGE UGE

UGE

U G

E U

G E

U G

E U

G E

U G

E U

G E

U G

UGE

UGE UGE UGE UGE UGE UGE UGE

UGE

U G

E U

G E

U G

E U

G E

U G

E U

G E

U G

UGE

UGE UGE UGE UGE UGE UGE UGE

UGE

EOI

TRAV

SCO

TOC EL 19.8±

12'± DEEP

6" CONC.

WALL

W/ WHEEL VALVECONC. VAULT

8'± HIGH

CONC.

STEPS

CONC.

STEP

18.93

CONC.

STEP

(BY O

S) (BY O

FOMH

FO FO FO FO FO FO FO FO FO FO FO FO FO

19 19

TOC EL 20.0±

TOC EL 19.8±

TOC EL 19.8± TOC EL 19.9±

TOC EL 19.9±

TOC EL 19.0± TOC EL 19.0±

T.D.

EMH

RIM=17.38

T/S=16.00'±

INV.=13.94 (15" RCP)

INV.=14.15 (6" PVC FROM BUILDING)

SDMH

RIM=21.73

INV.=11.84 (OUT)

15"RCP

DEPTH=10.46

RIM=18.25

DEPTH=12.86

RIM=18.77

DEPTH=13.35

RIM=17.09

DEPTH=10.98

CAPPED

TOP=18.20

G E

K D

N (D

T.D.

T/S=16.00'±

INV.=13.62 (15" RCP)

INV.=14.22 (3" PVC FROM BUILDING)

TOP=19.15

DEPTH=6.95

G E

K D

N (D

ANACOSTIA II WASTEWATER PUMPING STATION

ANDALUSIA LN

ANACOSTIA II WASTEWATER PUMPING STATION

CONTRACT: 23303290A

DATE REVISIONS

- B

O N

C H

O N

O R

O T

O N

C H

O N

T H

T, A

C C

O R

DRAWN:

CHECKED:

DESIGN:

OF 24

ANACOSTIA II

WASTEWATER PUMPING STATION

SURGE TANKS REMOVAL

ISSUED FOR BID

THESE DOCUMENTS CONTAIN

PRIVILEGED AND CONFIDENTIAL

INFORMATION WHICH SHALL NOT BE

REDISTRIBUTED WITHOUT PRIOR WSSC

APPROVAL

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.:

EXPIRATION DATE:

WASHINGTON SUBURBAN SANITARY COMMISSION

WSSC

DELIVERING THE ESSENTIAL

U T

C U

R R

T as o f:

/1 4/

9/4/2025 - PLOT DATE

10306 Eaton Place, Suite 220 Fairfax, VA 22030 Tel: (703) 691-6500

EXCAVATION PLAN C-3

PLAN - EXCAVATION

SCALE: 1" = 10'

B C-6

A C-6

7/25/2025

57413 03/31/27

APPROVED

BY: COLLIN HILTNER

MD DEPT ENVIRONMENT

SEDIMENT & STORMWATER

EMH

GAS

METER

15"RCP

CONC. PAD

ELEVATED

CONC. VAULT

UNK. POST

8'± HIGH

G G

G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G

U G

E U

G E

U G

E U

G E

U G

E U

G E

U G

E U

G E

U G

E U

G E

U G

E U

G E

U G

E U

G E

U G

UGE

UGE UGE UGE

UGE

UGE UGE UGE UGE UGE UGE UGE

UGE

U G

UGE

UGE UGE UGE UGE UGE UGE UGE

UGE

EOI

TRAV

SCO

12'± DEEP

6" CONC.

WALL

W/ WHEEL VALVECONC. VAULT

8'± HIGH

CONC.

STEPS

CONC.

STEP

18.93

CONC.

STEP

(BY O

S) (BY O

FO FO FO FO FO FO FO FO FO FO FO

T.D.

T/S=16.00'±

INV.=13.94 (15" RCP)

INV.=14.15 (6" PVC FROM BUILDING)

SDMH

RIM=21.73

INV.=11.84 (OUT)

15"RCP

CAPPED

TOP=18.20

T.D.

T/S=16.00'±

INV.=13.62 (15" RCP)

INV.=14.22 (3" PVC FROM BUILDING)

ANACOSTIA II WASTEWATER PUMPING STATION

ANDALUSIA LN

FOMH

EMH

RIM=17.38

DEPTH=10.46

RIM=18.25

DEPTH=12.86

RIM=18.77

DEPTH=13.35

RIM=17.09

DEPTH=10.98

CAPPED

TOP=18.20

CONTRACT: 23303290A

DATE REVISIONS

- B

O N

C H

O N

O R

O T

O N

C H

O N

T H

T, A

C C

O R

DRAWN:

CHECKED:

DESIGN:

OF 24

ANACOSTIA II

WASTEWATER PUMPING STATION

SURGE TANKS REMOVAL

ISSUED FOR BID

THESE DOCUMENTS CONTAIN

PRIVILEGED AND CONFIDENTIAL

INFORMATION WHICH SHALL NOT BE

REDISTRIBUTED WITHOUT PRIOR WSSC

APPROVAL

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.:

EXPIRATION DATE:

WASHINGTON SUBURBAN SANITARY COMMISSION

WSSC

DELIVERING THE ESSENTIAL

U T

C U

R R

T as o f:

/1 4/

9/4/2025 - PLOT DATE

10306 Eaton Place, Suite 220 Fairfax, VA 22030 Tel: (703) 691-6500

RESTORATION PLAN C-4

PLAN - RESTORATION

SCALE: 1" = 10' 7/25/2025

7/25/2025

57413 03/31/27

APPROVED

BY: COLLIN HILTNER

MD DEPT ENVIRONMENT

SEDIMENT & STORMWATER

- B

O N

C H

O N

O R

O T

O N

C H

O N

T H

T, A

C C

O R

DRAWN:

CHECKED:

DESIGN:

OF 24

ANACOSTIA II

WASTEWATER PUMPING STATION

SURGE TANKS REMOVAL

ISSUED FOR BID

THESE DOCUMENTS CONTAIN

PRIVILEGED AND CONFIDENTIAL

INFORMATION WHICH SHALL NOT BE

REDISTRIBUTED WITHOUT PRIOR WSSC

APPROVAL

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.:

EXPIRATION DATE:

WASHINGTON SUBURBAN SANITARY COMMISSION

WSSC

DELIVERING THE ESSENTIAL

U T

C U

R R

T as o f:

/1 4/

9/4/2025 - PLOT DATE

10306 Eaton Place, Suite 220 Fairfax, VA 22030 Tel: (703) 691-6500

PROFILES C-5

SECTION A-A

SCALE: 1" = 10'

SECTION B-B

SCALE: 1" = 10'

7/25/2025

57413 03/31/27

APPROVED

BY: COLLIN HILTNER

MD DEPT ENVIRONMENT

SEDIMENT & STORMWATER

RIM=17.18

T.D.

T/S=16.00'±

T.D.

I-2

RIM=16.74

INV.=12.73 (IN)

INV.=12.57 (OUT)

EMH

20"

DEC.

14"

DEC. 19"

DEC.

EMH

GAS

METER

SERVICE ROAD

6" C&G

6" C&G6" C&G

ASPHALT

D R

IVEW

D R

IVEW

BOL

BOL BOLBOL

15"RCP

INV.=12.83 (IN)

INV.=12.74 (OUT)

6"CPP

CONC. PAD

ELEVATED

CONC. VAULT

GRASS

UNK. POST

8'± HIGH

ANACOSTIA PUMPING

STATION NO. 2

SURGE

TANK

SURGE

TANK

SURGE

TANK

SURGE

TANK

SURGE

TANK

SURGE

TANK

SURGE

TANK

SURGE

TANK

CONC. WALKASPHALT

FOMH

ASPHALT

T/S=16.00'±

GRASS

EOI

SCO

ON CONC PAD

ELEV.= 19.00±

ON CONC PAD

ELEV.= 19.00±

ON CONC PAD

ELEV.= 19.90±

ON CONC PAD

ELEV.= 19.80±

ON CONC PAD

ELEV.= 19.80±

ON CONC PAD

ELEV.= 19.80±

ON CONC PAD

ELEV.= 20.00±

ON CONC PAD

ELEV.= 19.90±

1 CONC. ACCCESS SHAFT

WITH METAL HATCH

COULD NOT ACCESS

CONC. ACCCESS SHAFT

WITH METAL HATCH

12'± DEEP

6" CONC.

WALL

W/ WHEEL VALVECONC. VAULT

8'± HIGH

CONC.

STEPS

19 19

17.4 17.7 18.2

18.3

17.8

17.6

17.8

17.4

17.6

17.8

18.1 18.3 18.4 18.1 17.8

18.2

17.9

17.8

17.7

17.4

18.7

17.4

19.0

19.1

18.5

18.4

18.5

17.6

17.08

17.29

.25

16.72 16.12

16.06 16.70

17.24

17.66

17.93 17.89

.59

17.62 17.70

17.54

17.4117.6717.9217.70

17.40

17.22

16.96

18.12

17.93 17.53

17.04

17.26

17.77

17.26 16.22

17.46

19.14

17.57 CONC.

STEP

18.93

6" C &G

CONC.

STEP

19.87

19.89

19.87

20.00

(BY O

CNA

FOMH

LOD LOD LOD LOD LOD LOD

LOD

LODLODLOD

DLOD

SCE

SCECONTRACTOR'S

STAGING AREA

LOD LOD

SCE

LIMIT OF DISTURBANCE

SILT FENCE

FLOW ARROW

STABILIZED CONSTRUCTOR ENTRANCE

TREE REMOVAL

LEGEND

SILT FENCE ON PAVEMENT

PLAN- EROSION & SEDIMENT CONTROL

SCALE: 1"=10'

00 10' 20'

EROSION AND SEDIMENT CONTROL -

SEQUENCE OF CONSTRUCTION

1. CONTACT THE MARYLAND DEPARTMENT OF THE

ENVIRONMENT AT (410)537-3510 AT LEAST SEVEN (7)

DAYS PRIOR TO COMMENCING ANY LAND DISTURBING

ACTIVITY.

2. CONTACT WSSC INSPECTOR BEFORE ANY LAND

DISTURBANCE OCCURS.

3. CONTRACTOR SHALL ENSURE THAT ALL NECESSARY

PERMITS HAVE BEEN RECEIVED AND THAT THOSE

REQUIRED TO BE DISPLAYED ON-SITE ARE AVAILABLE.

4. HOLD PRE-CONSTRUCTION MEETING UNLESS WAIVED

BY MDE.

5. INSTALL STABILIZED CONSTRUCTION ENTRANCE.

(IF APPLICABLE)

6. INSTALL REMAINING SEDIMENT CONTROL IN

ACCORDANCE WITH THE SEDIMENT CONTROL PLAN.

7. PROCEED WITH CONSTRUCTION.

8. CONTRACTOR SHALL DILIGENTLY AND CONTINUOUSLY

MAINTAIN ALL EROSION CONTROL DEVICES AND

STRUCTURES.

9. REMOVE TREES.

10. CURB/DRIVEWAY DEMOLISHED.

11. DEMOLISH AND REMOVE STORAGE TANKS.

12. RESTORE CURB/DRIVEWAY.

13. AFTER THE SITE HAS BEEN STABLIZED, REMOVE ALL

SEDIMENT CONTROLS.

14. STABILIZE AREAS DISTURBED BY REMOVAL OF

SEDIMENT CONTROLS

CONTRACT: 23303290A

DATE REVISIONS

- B

O N

C H

O N

O R

O T

O N

C H

O N

T H

T, A

C C

O R

DRAWN:

CHECKED:

DESIGN: NB

RAM

07/25/2025

OF 24

ANACOSTIA II

WASTEWATER PUMPING STATION

SURGE TANKS REMOVAL

THESE DOCUMENTS CONTAIN

PRIVILEGED AND CONFIDENTIAL

INFORMATION WHICH SHALL NOT BE

REDISTRIBUTED WITHOUT PRIOR WSSC

APPROVAL

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.: 17356

EXPIRATION DATE: 05-21-2025

WASHINGTON SUBURBAN SANITARY COMMISSION

WSSC

DELIVERING THE ESSENTIAL

U T

C U

R R

T as o f:

/1 4/

07/25/25 - PLOT DATE

07/25/2025

10306 Eaton Place, Suite 220 Fairfax, VA 22030 Tel: (703) 691-6500

C-6

CURB INLET

PROTECTION

CURB INLET

PROTECTION

409 12th STREET, S.W.

SUITE 603

WASHINGTON, D.C. 20024

PH: (202) 478-2060

FAX: (202) 478-2050

www.peercpc.com

Est. 1978

Consultants, P.C.

PEER

EROSION & SEDIMENT CONTROL

PLAN

NOTES:

CONTRACTOR TO VERIFY DEWATERING METHOD,

DISCHARGE AND TREATMENT, IF NECESSARY, FOR

DISCHARGED WATER PRIOR TO DEWATERING OPERATIONS.

ESC WILL BE SETUP RIGHT AFTER MOBILIZING AND WILL

REMAIN FOR DURATION OF PROJECT.

IF CONSTRUCTION DOES NOT COMMENCE FOR 180 DAYS

FOLLOWING THE PRE-CON MEETING OR IF IS DORMANT

FOR MORE THAN 180 DAYS DURING THE CONSTRUCTION

PHASE, A NEW PRE-CON MEETING IS REQUIRED BEFORE

CONSTRUCTION CAN RE-START.

ALL APPLICABLE E&S CONTROL MEASURES MUST BE

MAINTAINED UNTIL PERMANENT VEGETATION AND

PAVEMENTS ARE ESTABLISHED.

ALL DEMOLITION DEBRIS IS TO GO TO AN APPROVED

LANDFILL OR RELATED FACILITY AS DETERMINED BY WSSC.

ISSUED FOR BID

FILTER BAG

RELOCATE

AS NEEDED

FILTER BAG

RELOCATE AS

NEEDED

SUMP PITS RELOCATE AS NEEDED

MDE# 25-SF-0149THE CONTRACTOR SHALL DESIGNATE CONSTRUCTION EQUIPMENT

ALLOWED WITHIN THE LOD. THIS EQUIPMENT SHALL REMAIN WITHIN THE

LOD UNTIL PROPOSED WORK IS COMPLETED. PRIOR TO VEHICLES LEAVING

THE LOD, WHEELS OR TRACKS SHALL BE CLEANED TO REMOVE SEDIMENT.

VEHICLE CLEANING SHALL BE PERFORMED ON A STABILIZED AREA THAT IS

EITHER SWEPT/VACUUM OR THAT DRAINS TO AN MDE- APPROVED SEDIMENT

CONTROL DEVICE. WHEN WASHING IS REQUIRED, IT SHALL BE DONE ON AN

AREA STABILIZED WITH STONE THAT DRAINS TO AN APPROVED SEDIMENT

CONTROL DEVICE. ALL SEDIMENT SPILLED, DROPPED, OR TRACKED ONTO

THE ROAD OR PUBLIC RIGHT-OF-WAY MUST BE REMOVED IMMEDIATELY BY

VACUUMING, SCRAPING, OR SWEEPING.

APPROVED

BY: COLLIN HILTNER

MD DEPT ENVIRONMENT

SEDIMENT & STORMWATER

- B

O N

C H

O N

O R

O T

O N

C H

O N

T H

T, A

C C

O R

DRAWN:

CHECKED:

DESIGN: NB

RAM

07/25/2025

OF 24

ANACOSTIA II

WASTEWATER PUMPING STATION

SURGE TANKS REMOVAL

THESE DOCUMENTS CONTAIN

PRIVILEGED AND CONFIDENTIAL

INFORMATION WHICH SHALL NOT BE

REDISTRIBUTED WITHOUT PRIOR WSSC

APPROVAL

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.: 17356

EXPIRATION DATE: 05-21-2025

WASHINGTON SUBURBAN SANITARY COMMISSION

WSSC

DELIVERING THE ESSENTIAL

U T

C U

R R

T as o f:

/1 4/

07/25/25 - PLOT DATE

07/25/2025

10306 Eaton Place, Suite 220 Fairfax, VA 22030 Tel: (703) 691-6500

CD-1EROSION & SEDIMENT CONTROL

DETAILS

409 12th STREET, S.W.

SUITE 603

WASHINGTON, D.C. 20024

PH: (202) 478-2060

FAX: (202) 478-2050

www.peercpc.com

Est. 1978

Consultants, P.C.

PEER

ISSUED FOR BID

MDE# 25-SF-0149

APPROVED

BY: COLLIN HILTNER

MD DEPT ENVIRONMENT

SEDIMENT & STORMWATER

- B

O N

C H

O N

O R

O T

O N

C H

O N

T H

T, A

C C

O R

DRAWN:

CHECKED:

DESIGN: NB

RAM

07/25/2025

OF 24

ANACOSTIA II

WASTEWATER PUMPING STATION

SURGE TANKS REMOVAL

THESE DOCUMENTS CONTAIN

PRIVILEGED AND CONFIDENTIAL

INFORMATION WHICH SHALL NOT BE

REDISTRIBUTED WITHOUT PRIOR WSSC

APPROVAL

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.: 17356

EXPIRATION DATE: 05-21-2025

WASHINGTON SUBURBAN SANITARY COMMISSION

WSSC

DELIVERING THE ESSENTIAL

U T

C U

R R

T as o f:

/1 4/

07/25/25 - PLOT DATE

07/25/2025

10306 Eaton Place, Suite 220 Fairfax, VA 22030 Tel: (703) 691-6500

CD-2VEGETATIVE STABILIZATION409 12th STREET, S.W.

SUITE 603

WASHINGTON, D.C. 20024

PH: (202) 478-2060

FAX: (202) 478-2050

www.peercpc.com

Est. 1978

Consultants, P.C.

PEER

ISSUED FOR BID

MDE# 25-SF-0149

6b 6b

Annual Ryegrass

Barley

Foxtail Millet

0.5"

1.0"

5/16-7/31

3/1-5/15 8/1-10/15

APPROVED

BY: COLLIN HILTNER

MD DEPT ENVIRONMENT

SEDIMENT & STORMWATER

- B

O N

C H

O N

O R

O T

O N

C H

O N

T H

T, A

C C

O R

DRAWN:

CHECKED:

DESIGN: NB

RAM

07/25/2025

OF 24

ANACOSTIA II

WASTEWATER PUMPING STATION

SURGE TANKS REMOVAL

THESE DOCUMENTS CONTAIN

PRIVILEGED AND CONFIDENTIAL

INFORMATION WHICH SHALL NOT BE

REDISTRIBUTED WITHOUT PRIOR WSSC

APPROVAL

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.: 17356

EXPIRATION DATE: 05-21-2025

WASHINGTON SUBURBAN SANITARY COMMISSION

WSSC

DELIVERING THE ESSENTIAL

U T

C U

R R

T as o f:

/1 4/

07/25/25 - PLOT DATE

07/25/2025

10306 Eaton Place, Suite 220 Fairfax, VA 22030 Tel: (703) 691-6500

CD-3PERMANENT STABILIZATION409 12th STREET, S.W.

SUITE 603

WASHINGTON, D.C. 20024

PH: (202) 478-2060

FAX: (202) 478-2050

www.peercpc.com

Est. 1978

Consultants, P.C.

PEER

ISSUED FOR BID

MDE# 25-SF-0149

Tall Fescue

Kentucky Bluegrass

Perennial Ryegrass

3/1-5/15 8/1-10/15 3/1-5/15 8/1-10/15 3/1-5/15 8/1-10/15

APPROVED

BY: COLLIN HILTNER

MD DEPT ENVIRONMENT

SEDIMENT & STORMWATER

- B

O N

C H

O N

O R

O T

O N

C H

O N

T H

T, A

C C

O R

DRAWN:

CHECKED:

DESIGN: NB

RAM

07/25/2025

OF 24

ANACOSTIA II

WASTEWATER PUMPING STATION

SURGE TANKS REMOVAL

THESE DOCUMENTS CONTAIN

PRIVILEGED AND CONFIDENTIAL

INFORMATION WHICH SHALL NOT BE

REDISTRIBUTED WITHOUT PRIOR WSSC

APPROVAL

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.: 17356

EXPIRATION DATE: 05-21-2025

WASHINGTON SUBURBAN SANITARY COMMISSION

WSSC

DELIVERING THE ESSENTIAL

U T

C U

R R

T as o f:

/1 4/

07/25/25 - PLOT DATE

07/25/2025

10306 Eaton Place, Suite 220 Fairfax, VA 22030 Tel: (703) 691-6500

CD-4EROSION & SEDIMENT CONTROL

NOTES

409 12th STREET, S.W.

SUITE 603

WASHINGTON, D.C. 20024

PH: (202) 478-2060

FAX: (202) 478-2050

www.peercpc.com

Est. 1978

Consultants, P.C.

PEER

ISSUED FOR BID

MDE# 25-SF-0149

GENERAL NOTES

1. THE CONTRACTOR SHALL NOTIFY MDE AT (410) 537-3510 SEVEN (7) DAYS BEFORE COMMENCING ANY LAND DISTURBING ACTIVITY AND, UNLESS WAIVED BY MDE, SHALL BE REQUIRED TO HOLD A PRE- CONSTRUCTION MEETING BETWEEN PROJECT REPRESENTATIVES AND A REPRESENTATIVE OF MDE.

2. THE CONTRACTOR SHALL NOTIFY MDE IN WRITING AND BY TELEPHONE AT THE FOLLOWING POINTS:

A. THE REQUIRED PRE-CONSTRUCTION MEETING.

B. FOLLOWING INSTALLATION OF SEDIMENT CONTROL MEASURES.

C. DURING THE INSTALLATION OF SEDIMENT BASINS (TO BE CONVERTED INTO PERMANENT

STORMWATER MANAGEMENT STRUCTURES) AT THE REQUIRED INSPECTION POINTS (SEE

INSPECTION CHECKLIST ON PLAN) NOTIFICATION PRIOR TO COMMENCING CONSTRUCTION OF

EACH STEP IS MANDATORY.

D. PRIOR TO REMOVAL OR MODIFICATION OF ANY SEDIMENT CONTROL STRUCTURE(S).

E. PRIOR TO REMOVAL OF ALL SEDIMENT CONTROL DEVICES.

F. PRIOR TO FINAL ACCEPTANCE.

3. THE PLAN APPROVAL LETTER, APPROVED EROSION AND SEDIMENT CONTROL PLANS, DAILY LOG

BOOKS, AND TEST REPORTS SHALL BE AVAILABLE AT THE SITE FOR INSPECTION BY DULY

AUTHORIZED OFFICIALS OF MDE AND THE AGENCY RESPONSIBLE FOR THE PROJECT.

4. THE CONTRACTOR SHALL CONSTRUCT ALL EROSION AND SEDIMENT CONTROL MEASURES PER THE

APPROVED PLAN AND CONSTRUCTION SEQUENCE AND SHALL HAVE THEM INSPECTED AND

APPROVED BY THE MDE INSPECTOR PRIOR TO BEGINNING ANY OTHER LAND DISTURBANCES. MINOR

SEDIMENT CONTROL DEVICE LOCATION ADJUSTMENTS MAY BE MADE IN THE FIELD WITH THE

APPROVAL OF THE MDE INSPECTOR. THE CONTRACTOR SHALL ENSURE THAT ALL RUNOFF FROM

DISTURBED AREAS IS DIRECTED TO THE SEDIMENT CONTROL DEVICES AND SHALL NOT REMOVE

ANY EROSION OR SEDIMENT CONTROL MEASURE WITHOUT PRIOR PERMISSION FROM MDE

INSPECTOR. THE CONTRACTOR SHALL OBTAIN PRIOR AGENCY AND MDE APPROVAL FOR

MODIFICATIONS TO THE EROSION AND SEDIMENT CONTROL PLAN AND/OR SEQUENCE OF

CONSTRUCTION.

5. THE MDE INSPECTOR HAS THE OPTION OF REQUIRING ADDITIONAL SAFETY OR SEDIMENT CONTROL

MEASURES, IF DEEMED NECESSARY.

6. THE CONTRACTOR SHALL PROTECT ALL POINTS OF CONSTRUCTION INGRESS AND EGRESS TO

PREVENT THE DEPOSITION OF MATERIALS ONTO PUBLIC ROADS. ALL MATERIALS DEPOSITED ONTO

PUBLIC ROADS SHALL BE REMOVED IMMEDIATELY

7. THE CONTRACTOR SHALL INSPECT DAILY AND MAINTAIN CONTINUOUSLY IN AN EFFECTIVE

OPERATING CONDITION ALL EROSION AND SEDIMENT CONTROL MEASURES UNTIL SUCH TIME AS

THEY ARE REMOVED WITH PRIOR PERMISSION FROM THE MDE INSPECTOR.

8. EROSION AND SEDIMENT CONTROL FOR UTILITY CONSTRUCTION SHALL BE PROVIDED IN

ACCORDANCE WITH APPROVED PLANS. UTILITY CONSTRUCTION SHALL ONLY BE FOR AREAS WITHIN THE DELINEATED LIMIT OF DISTURBANCE. CALL "MISS UTILITY" AT 1-800-257-7777 48 HOURS PRIOR TO

THE START OF WORK. WHEN SAME DAY STABILIZATION IS APPROVED:

A. EXCAVATED TRENCH MATERIAL SHALL BE PLACED ON THE HIGH SIDE OF THE TRENCH.

B. TRENCHES FOR UTILITY INSTALLATION SHALL BE BACKFILLED, COMPACTED, AND STABILIZED AT

THE END OF EACH WORKING DAY. NO MORE TRENCH SHALL BE OPENED THAN CAN BE COMPLETED

THE SAME DAY

9. ALL WATER REMOVED FROM EXCAVATED AREAS SHALL BE PASSED THROUGH AN MDE APPROVED DEWATERING PRACTICE OR PUMPED TO A SEDIMENT TRAP OR BASIN PRIOR TO DISCHARGE TO A

FUNCTIONAL STORM DRAIN SYSTEM OR TO STABLE GROUND SURFACE.

10. CONCRETE WASHOUT STRUCTURES SHALL BE USED WHEN CONCRETE TRUCKS, DRUMS, PUMPS, CHUTES, OR OTHER EQUIPMENT IS RINSED OR CLEANED ON-SITE.

11. CONSTRUCTION ACTIVITIES PRODUCING DUST SHALL IMPLEMENT CONTROL MEASURES TO AVOID

THE SUSPENSION OF DUST PARTICLES AND/OR PREVENT DUST FROM BLOWING OFF-SITE OR TO

AREAS WITHOUT TREATMENT.

12. FOLLOWING INITIAL SOIL DISTURBANCE OR RE-DISTURBANCE, PERMANENT OR TEMPORARY

STABILIZATION SHALL BE COMPLETED WITHIN:

A. THREE (3) CALENDAR DAYS AS TO THE SURFACE OF ALL PERIMETER CONTROLS, DIKES, SWALES, DITCHES, PERIMETER SLOPES, AND ALL SLOPES STEEPER THAN 3 HORIZONTAL TO 1 VERTICAL

(3:1); AND

B. SEVEN (7) CALENDAR DAYS AS TO ALL OTHER DISTURBED OR GRADED AREAS ON THE PROJECT

SITE NOT UNDER ACTIVE GRADING.

13. VEGETATIVE STABILIZATION SHALL BE PERFORMED IN ACCORDANCE WITH THE 2011 MARYLAND

STANDARDS AND SPECIFICATIONS FOR SOIL EROSION AND SEDIMENT CONTROL. REFER TO

APPROPRIATE SPECIFICATIONS FOR TEMPORARY SEEDING, PERMANENT SEEDING, MULCHING,

SODDING, AND GROUND COVERS.

14. WHEN SEEDING, ALL DISTURBED AREAS WITH SLOPES FLATTER THAN 21 SHALL BE STABILIZED WITH 4 INCHES OF TOPSOIL, SEED, AND MULCH. ALL DISTURBED AREAS WITH SLOPES 2:1 OR STEEPER

SHALL BE STABILIZED WITH MATTING OVER 2 INCHES OF TOPSOIL AND SEED.

15. ALL SEDIMENT BASINS, TRAP EMBANKMENTS AND SLOPES, PERIMETER DIKES, SWALES AND ALL DISTURBED SLOPES STEEPER OR EQUAL TO 3:1 SHALL BE STABILIZED WITH SEED AND ANCHORED STRAW MULCH, SOD, OR OTHER APPROVED STABILIZATION MEASURES, AS SOON AS POSSIBLE BUT

NO LATER THAN THREE (3) CALENDAR DAYS AFTER ESTABLISHMENT. ALL AREAS DISTURBED

OUTSIDE OF THE PERIMETER SEDIMENT CONTROL SYSTEM SHALL BE MINIMIZED. MAINTENANCE

SHALL BE PERFORMED AS NECESSARY TO ENSURE CONTINUED STABILIZATION.

16. PERMANENT SWALES OR OTHER POINTS OF CONCENTRATED WATER FLOW SHALL BE STABILIZED WITH SEED AND AN APPROVED EROSION CONTROL MATTING, SOD, RIP-RAP, OR OTHER APPROVED

STABILIZATION MEASURES.

17. FOR STOCKPILE SLOPES STEEPER THAN 3 HORIZONTAL TO 1 VERTICAL (31 ), THE CONTRACTOR

SHALL APPLY SEED AND ANCHORED STRAW MULCH, SOD, OR OTHER APPROVED STABILIZATION

MEASURES TO THE FACE OF THE STOCKPILE WITHIN THREE (3) CALENDAR DAYS OF ACTIVITY

HAVING CEASED ON THE RESPECTIVE FACE. FOR SLOPES 31 OR FLATTER, THE CONTRACTOR SHALL APPLY STABILIZATION MEASURES TO THE FACE OF THE STOCKPILE WITHIN SEVEN (7) CALENDAR

DAYS OF ACTIVITY HAVING CEASED ON THE RESPECTIVE FACE. MAINTENANCE SHALL BE

PERFORMED AS NECESSARY TO ENSURE CONTINUED STABILIZATION.

18. FOR FINISHED GRADING, THE CONTRACTOR SHALL PROVIDE ADEQUATE GRADIENTS TO PREVENT WATER FROM PONDING FOR MORE THAN TWENTY-FOUR (24) HOURS AFTER THE END OF A RAINFALL EVENT. DRAINAGE COURSES AND SWALE FLOW AREAS MAY TAKE AS LONG AS FORTY- EIGHT (48) HOURS AFTER THE END OF A RAINFALL EVENT TO DRAIN. AREAS DESIGNED TO HAVE STANDING

WATER SHALL NOT BE REQUIRED TO MEET THIS REQUIREMENT.

19. WHERE DEEMED APPROPRIATE BY THE ENGINEER OR INSPECTOR, SEDIMENT BASINS AND TRAPS

MAY NEED TO BE SURROUNDED WITH AN APPROVED SAFETY FENCE. THE FENCE MUST CONFORM

TO LOCAL ORDINANCES AND REGULATIONS. THE DEVELOPER OR OWNER SHALL CHECK WITH LOCAL BUILDING OFFICIALS ON APPLICABLE SAFETY REQUIREMENTS. WHERE SAFETY FENCE IS DEEMED

APPROPRIATE AND LOCAL ORDINANCES DO NOT SPECIFY FENCING SIZES AND TYPES, THE

FOLLOWING SHALL BE USED AS A MINIMUM STANDARD: THE SAFETY FENCE SHALL BE MADE OF

WELDED WIRE AND AT LEAST 42 INCHES HIGH, HAVE POSTS SPACED NO FARTHER APART THAN 8 FEET, HAVE MESH OPENINGS NO GREATER THAN 2 INCHES IN WIDTH AND 4 INCHES IN HEIGHT WITH A MINIMUM OF 14 GAUGE WIRE. SAFETY FENCE SHALL BE MAINTAINED AND IN GOOD CONDITION AT

ALL TIMES.

20. ALL SEDIMENT TRAP DEPTH DIMENSIONS ARE RELATIVE TO THE OUTLET ELEVATION. ALL TRAPS SHALL HAVE A STABLE OUTFALL. ALL TRAPS AND BASINS SHALL HAVE STABLE INFLOW POINTS.

21. SEDIMENT SHALL BE REMOVED AND THE TRAP OR BASIN RESTORED TO ITS ORIGINAL DIMENSIONS WHEN THE SEDIMENT HAS ACCUMULATED TO ONE QUARTER OF THE TOTAL DEPTH OF THE TRAP OR BASIN. TOTAL DEPTH SHALL BE MEASURED FROM THE TRAP OR BASIN BOTTOM TO THE CREST OF

THE OUTLET.

22. SEDIMENT REMOVED FROM TRAPS (AND BASINS) SHALL BE PLACED AND STABILIZED IN APPROVED AREAS, BUT NOT WITHIN A FLOODPLAIN, WETLAND OR TREE-SAVE AREA. WHEN PUMPING SEDIMENT LADEN WATER, THE DISCHARGE SHALL BE DIRECTED TO AN MDE APPROVED SEDIMENT TRAPPING

DEVICE PRIOR TO RELEASE FROM THE SITE. A SUMP PIT MAY BE USED IF SEDIMENT TRAPS

THEMSELVES ARE BEING PUMPED OUT.

23. PRIOR TO REMOVAL OF SEDIMENT CONTROL MEASURES, THE CONTRACTOR SHALL STABILIZE AND HAVE ESTABLISHED PERMANENT STABILIZATION FOR ALL CONTRIBUTORY DISTURBED AREAS USING

SOD OR AN APPROVED PERMANENT SEED MIXTURE WITH REQUIRED SOIL AMENDMENTS AND AN

APPROVED ANCHORED MULCH. WOOD FIBER MULCH MAY ONLY BE USED IN SEEDING SEASON

WHERE THE SLOPE DOES NOT EXCEED 10% AND GRADING HAS BEEN DONE TO PROMOTE SHEET

FLOW DRAINAGE. AREAS BROUGHT TO FINISHED GRADE DURING THE SEEDING SEASON SHALL BE PERMANENTLY STABILIZED AS SOON AS POSSIBLE, BUT NOT LATER THAN THREE (3) CALENDAR DAYS AFTER ESTABLISHMENT FOR SLOPES STEEPER THAN 3 HORIZONTAL TO 1 VERTICAL (3:1) AND

SEVEN (7) CALENDAR DAYS FOR FLATTER SLOPES. WHEN PROPERTY IS BROUGHT TO FINISHED

GRADE DURING THE MONTHS OF NOVEMBER THROUGH FEBRUARY, AND PERMANENT STABILIZATION

IS FOUND TO BE IMPRACTICAL, TEMPORARY SEED AND ANCHORED STRAW MULCH SHALL BE

APPLIED TO DISTURBED AREAS. THE FINAL PERMANENT STABILIZATION OF SUCH PROPERTY SHALL

BE APPLIED BY MARCH 15 OR EARLIER IF GROUND AND WEATHER CONDITIONS ALLOW.

24. TEMPORARY SEDIMENT CONTROL DEVICES SHALL BE REMOVED WITH PERMISSION OF THE MOE

INSPECTOR WITHIN THIRTY (30) CALENDAR DAYS FOLLOWING ESTABLISHMENT OF PERMANENT

STABILIZATION IN ALL CONTRIBUTORY DRAINAGE AREAS. UPON REMOVAL OF SEDIMENT CONTROL DEVICES, THE AREA DISTURBED BY REMOVAL SHALL BE STABILIZED WITH TOPSOIL, SEED, AND

MULCH, OR AS SPECIFIED, WITHIN 24 HOURS OF SAID REMOVAL. STORMWATER MANAGEMENT

STRUCTURES USED TEMPORARILY FOR SEDIMENT CONTROL SHALL BE CONVERTED TO THE

PERMANENT CONFIGURATION WITHIN THIS TIME PERIOD AS WELL.

25. OFF-SITE SPOIL OR BORROW AREAS ON STATE OR FEDERAL PROPERTY SHALL HAVE PRIOR

APPROVAL BY MDE AND OTHER APPLICABLE STATE, FEDERAL, AND LOCAL AGENCIES; OTHERWISE APPROVAL SHALL BE GRANTED BY THE LOCAL AUTHORITIES. ALL WASTE AND BORROW AREAS OFF-

SITE SHALL BE PROTECTED BY SEDIMENT CONTROL MEASURES AND STABILIZED.

26. SITE INFORMATION:

A. AREA DISTURBED O 33 ACRES

B. TOTAL CUT EST. 1500 CUBIC YARDS

C. TOTAL FILL EST. 1790 CUBIC YARDS

D. OFF-SITE WASTE/ BORROW AREA LOCATION: CONTRACTOR TO SELECT REGULATED

WASTE/BORROW LOCATION

STANDARD STABILIZATION NOTE

FOLLOWING INITIAL SOIL DISTURBANCE OR REDISTURBANCE, PERMANENT OR TEMPORARY

STABILIZATION SHALL BE

COMPLETED WITHIN THREE (3) CALENDAR DAYS AS TO THE SURFACE OF ALL PERIMETER CONTROLS, DIKES, SWALES, DITCHES, PERIMETER SLOPES, AND ALL SLOPES STEEPER THAN 3 HORIZONTAL TO 1 VERTICAL

(31); AND

SEVEN (7) DAYS AS TO ALL OTHER DISTURBED OR GRADED AREAS ON THE PROJECT SITE NOT UNDER

ACTIVE

GRADING.

9/4/2025

Nader Bazzazieh17356

Docusign Envelope ID: 5B0065CB-2572-4CE8-B114-653E6038ADD8

056719 Jacob Beschner Facility Construction Manager

Sep 15, 2025 | 8:50 AM EDT

APPROVED

BY: COLLIN HILTNER

MD DEPT ENVIRONMENT

SEDIMENT & STORMWATER

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DESIGN:

OF 24

ANACOSTIA II

WASTEWATER PUMPING STATION

SURGE TANKS REMOVAL

ISSUED FOR BID

THESE DOCUMENTS CONTAIN

PRIVILEGED AND CONFIDENTIAL

INFORMATION WHICH SHALL NOT BE

REDISTRIBUTED WITHOUT PRIOR WSSC

APPROVAL

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.:

EXPIRATION DATE:

WASHINGTON SUBURBAN SANITARY COMMISSION

WSSC

DELIVERING THE ESSENTIAL

U T

C U

R R

T as o f:

/1 4/

9/4/2025 - PLOT DATE

10306 Eaton Place, Suite 220 Fairfax, VA 22030 Tel: (703) 691-6500

CIVIL DETAILS CD-5

JJS

7/25/2025

DETAIL A - ASPHALT PAVEMENT

SCALE: NTS

DETAIL B - CURB AND GUTTER

SCALE: NTS

DETAIL C - TYPICAL SIDEWALK SECTIONS

SCALE: NTS

DETAIL D - PAVEMENT MATCH

SCALE: NTS

DETAIL E - 5" CONCRETE SIDEWALK W/ WIRED MASH

SCALE: NTS

CD-1

57413 03/31/27

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DESIGN:

OF 24

ANACOSTIA II

WASTEWATER PUMPING STATION

SURGE TANKS REMOVAL

ISSUED FOR BID

THESE DOCUMENTS CONTAIN

PRIVILEGED AND CONFIDENTIAL

INFORMATION WHICH SHALL NOT BE

REDISTRIBUTED WITHOUT PRIOR WSSC

APPROVAL

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.:

EXPIRATION DATE:

WASHINGTON SUBURBAN SANITARY COMMISSION

WSSC

DELIVERING THE ESSENTIAL

U T

C U

R R

T as o f:

/1 4/

9/4/2025 - PLOT DATE

10306 Eaton Place, Suite 220 Fairfax, VA 22030 Tel: (703) 691-6500

14EAST AND WEST PUMP ROOMS

DEMOLITION PLAN M-1

PLAN - WEST PUMP ROOM

SCALE: 1/8" = 1'-0"

PLAN - EAST PUMP ROOM

SCALE: 1/8" = 1'-0"

SECTION A-A

SCALE: 1/4" = 1'-0"

PHOTO - EAST PUMP ROOM (LOOKING NORTH)

SCALE: NTS

NOTES

1. SECTION A-A ONLY SHOWS

DEMOLITION WORK ON SEWAGE

PUMP NO. 10 IN THE EAST PUMP

ROOM. SAME WORK APPLIES FOR

SEWAGE PUMP NOS. 8, 9, 11, AND 12.

2. DEMOLITION WORK ON SEWAGE

PUMP NOS. 1, 2, 3, 4, AND 5 IN THE

WEST PUMP ROOM IS SIMILAR AS

SHOWN IN SECTION A-A.

3. EXISTING PUMP STATION SHOWN IS

BASED ON RECORD DRAWINGS,

"ANACOSTIA PUMPING STATION NO. 2

UPGRADED PUMPING SYSTEM,"

DATED SEPTEMBER 24, 2007.

SECTION A-A ABOVE DEPICTS PUMP

IMPROVEMENTS FROM THESE

RECORD DRAWINGS, AND IS NOT

REPRESENTATIVE OF ALL PUMPS.

4. DETAIL A PHOTO DATED JUNE 2024.

DEMOLISH EXISTING 30"

90-DEGREE VERTICAL

BEND (TYP OF 5)

DEMOLISH EXISTING 30"

90-DEGREE VERTICAL BEND

(TYP OF 5)

DEMOLISH EXISTING 30"

90-DEGREE VERTICAL

BEND (TYP OF 5)

DEMOLISH EXISTING 30"

90-DEGREE VERTICAL BEND

(TYP OF 5)

JJS

7/25/2025

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DESIGN:

OF 24

ANACOSTIA II

WASTEWATER PUMPING STATION

SURGE TANKS REMOVAL

ISSUED FOR BID

THESE DOCUMENTS CONTAIN

PRIVILEGED AND CONFIDENTIAL

INFORMATION WHICH SHALL NOT BE

REDISTRIBUTED WITHOUT PRIOR WSSC

APPROVAL

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.:

EXPIRATION DATE:

WASHINGTON SUBURBAN SANITARY COMMISSION

WSSC

DELIVERING THE ESSENTIAL

U T

C U

R R

T as o f:

/1 4/

9/4/2025 - PLOT DATE

10306 Eaton Place, Suite 220 Fairfax, VA 22030 Tel: (703) 691-6500

15EAST AND WEST PUMP ROOMS

NEW WORK PLANS AND SECTION M-2

PLAN - WEST PUMP ROOM

SCALE: 1/8" = 1'-0"

PLAN - EAST PUMP ROOM

SCALE: 1/8" = 1'-0"

SECTION A-A

SCALE: 3/16" = 1'-0"

NOTES

1. SECTION A-A ONLY SHOWS PROPOSED WORK ON

SEWAGE PUMP NO. 10 IN THE EAST PUMP ROOM.

SAME WORK APPLIES FOR SEWAGE PUMP NOS. 8, 9,

11, AND 12.

2. PROPOSED WORK ON SEWAGE PUMP NOS. 1, 2, 3, 4,

AND 5 IN THE WEST PUMP ROOM IS SIMILAR AS

SHOWN IN SECTION A-A.

3. THE BASIS OF DESIGN FOR THE COMBINATION AIR

VALVE (CAV) IS A SINGLE BODY APCO SERIES

440SCAV WITH 2" INLET AND 1" OUTLET WITH A

DOUBLE ACTING THROTTLING (DAT) DEVICE SET AT

5% OPEN ORIFICE DIAMETER (0.22"). SUBSTITUTE AIR

VALVES SHALL MEET OR EXCEED BASIS OF DESIGN

COMBINATION AIR VALVE VENTING CAPACITY.

4. CONTRACTOR TO FIELD ROUTE DRAIN LINE TO DRAIN

CHANNEL. PROVIDE PIPE HANGERS AND SUPPORT

FOR DRAIN LINE EVERY FOUR FEET.

5. DRAIN LINE SHALL BE CROSS LINKED POLYETHYLENE

PIPE WITH STANDARD GRADE HYDROSTATIC

PRESSURE RATING OF 160 PSI, MANUFACTURED AND

MARKED IN ACCORDANCE WITH AWWA C904. INSTALL

ACCORDING TO MANUFACTURER'S INSTRUCTIONS

AND IN ACCORDANCE WITH AWWA C904 AND LOCAL

CODES.

6. CONTRACTOR TO FIELD VERIFY AND PROVIDE

CONFIRMATION OF FITTING DIMENSIONS AND BOLT

PATTERN AS INITIAL SUBMITTAL ALONG WITH FITTING

SUBMITTAL.

7. EXISTING PUMP STATION SHOWN IS BASED ON

RECORD DRAWINGS, "ANACOSTIA PUMPING STATION

NO. 2 UPGRADED PUMPING SYSTEM," DATED

SEPTEMBER 24, 2007.

INSTALL 2"X1" SINGLE

BODY APCO SERIES

440SCAV

(TYP OF 5) (SEE NOTE 3)

INSTALL 30"

FLANGED TEE AND

BLIND FLANGE

(TYP OF 5)

INSTALL 2"X1" SINGLE

BODY APCO SERIES

440SCAV

(TYP OF 5) (SEE NOTE 3)

INSTALL 30"

FLANGED TEE AND

BLIND FLANGE

(TYP OF 5)

INSTALL 30" TEE

AND 30" BLIND FLANGE

SEE DETAIL A

(THIS SHEET)

INSTALL 2"X1" SINGLE BODY

APCO SERIES 440SCAV

(SEE NOTE 3)

PEX-A DRAIN LINE

(SUPPORT AS NECESSARY)

1" PEX-A DRAIN LINE TO

SUMP (SEE NOTE 4)

30" FLANGED TEE

1" PEX-A DRAIN

LINE

2"X1" SINGLE BODY APCO

SERIES 440SCAV

DETAIL A

SCALE: 1/4" = 1'-0"

A M-3

JJS

2" THREADED PLUG VALVE

30" BLIND FLANGE

2" THREADED NIPPLE

DRILL AND TAP BLIND FLANGE

7/25/2025

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DESIGN:

OF 24

ANACOSTIA II

WASTEWATER PUMPING STATION

SURGE TANKS REMOVAL

ISSUED FOR BID

THESE DOCUMENTS CONTAIN

PRIVILEGED AND CONFIDENTIAL

INFORMATION WHICH SHALL NOT BE

REDISTRIBUTED WITHOUT PRIOR WSSC

APPROVAL

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.:

EXPIRATION DATE:

WASHINGTON SUBURBAN SANITARY COMMISSION

WSSC

DELIVERING THE ESSENTIAL

U T

C U

R R

T as o f:

/1 4/

9/4/2025 - PLOT DATE

10306 Eaton Place, Suite 220 Fairfax, VA 22030 Tel: (703) 691-6500

16EAST AND WEST PUMP ROOMS

CAV DRAIN LINES M-3

NOTE 1

NOTES:

1. CONTRACTOR TO FIELD ROUTE DRAIN LINE TO DRAIN

CHANNEL AS SHOWN. PROVIDE PIPE HANGERS AND

SUPPORT FOR DRAIN LINE, WITH A MINIMUM SPACING

OF EVERY FOUR FEET.

2. NEW WORK SHOWN ONLY ON PUMP #5 DISCHARGE AS

AN EXAMPLE. WORK IS SIMILAR ON ALL THE OTHER

PUMP DISCHARGE LINES.

NOTE 1

PHOTO - DRAIN CHANNEL

SCALE: NTS

PHOTO - WEST PUMP ROOM (LOOKING SOUTH)

SCALE: NTS

PHOTO - EAST PUMP ROOM (LOWER LEVEL)

SCALE: NTS

NOTE 2

DRAIN

CHANNEL

1" TEE

WITH PLUG

PIPE SUPPORT

(TYP)

1" PEX-A DRAIN

LINE FROM CAV

(NOTE 1)

JJS

GRATING

FASTENER

ADJUSTABLE STEEL RING

HANGER, CARPENTER AND

PATERSON, INC. FIG 800 OR

APPROVED EQUAL WHEN USED

WITH PVC OR FIBERGLASS PIPE,

PROVIDE STEEL SHIELD AROUND

PIPE AT HANGER W/LOOSE FIT

COPPER TUBES TO HAVE 2" WIDE

STRIP OF RUBBER FABRIC

EXISTING GRATE

LOCK-NUT AND WASHER

LINKED EYE ROD

4" MAX PIPE SIZE

PENETRATION

(SEE NOTE 2)

3/8" SS

ADHESIVE

ANCHOR

1. IF SUBMERGED, LOCATED ON OR ABOVE THE HYDRAULIC GRADE

LINE, BELOW GRADE OR LOCATED OUTDOORS, THE PIPE CLAMP,

WASHER, BOLTS AND SHIELD SHALL BE 316 SS.

2. ADHESIVE ANCHORS SHALL PENETRATE NOT LESS THAN 5".

NOTES:

DETAIL A - PIPE CLAMP FOR WALL-MOUNTED PIPES

SCALE: NTS

BAR 1 1/2" X 1/8"

GALVANIZED

AFTER FABRICATION

DETAIL B - PIPE HANGER FROM GRATING

SCALE: NTS

7/25/2025

17SURGE TANKS REMOVAL

DEMOLITION AND NEW WORK PLAN M-4

PLAN - SURGE TANKS PIPING

SCALE: 1/8" = 1'-0"

GRAPHIC SCALE

4 2 0 8

1/8" = 1'-0"

NOTES

1. EXISTING 8" DRAIN LINE MAY NOT BE USED TO DRAIN SURGE TANKS.

2. CONTRACTOR TO FIELD VERIFY WATER-TIGHT SHUT-OFF OF EXISTING PLUG VALVES.

CONTRACTOR SHALL SUBMIT A PLAN FOR TESTING THE WATER-TIGHTNESS OF THE PLUG

VALVES A MINIMUM OF 30 DAYS PRIOR TO TESTING OF THE PLUG VALVES.

3. IF WASTEWATER FLOWS ARE OBSERVED GOING INTO THE SURGE TANKS AFTER CLOSING

THE 24" ISOLATION PLUG VALVES, PROCEED WITH SCENARIO 2. IF WATER TIGHT CLOSURE

IS OBTAINED WITH THE 24" ISOLATION PLUG VALVES, CONTINUE WITH SCENARIO 1.

4. PRIOR TO ORDERING BLIND FLANGES, CONTRACTOR TO CONFIRM EXISTING FLANGE

BOLTING REQUIREMENTS.

5. EXISTING SURGE TANKS SHOWN ARE BASED ON RECORD DRAWINGS, "ANACOSTIA

PUMPING STATION NO. 2," DATED MARCH 19, 1976.

6. SEE SPECIFICATION SECTION 01320 FOR SEQUENCE OF CONSTRUCTION, AND

CONSTRUCTION CONSTRAINTS.

SCENARIO 2 - PLUG VALVES ARE NOT OPERATIONAL

SECTION A-A

SCALE: 1/4" = 1'-0"

GRAPHIC SCALE

2 1 0 4

1/4" = 1'-0"

SCENARIO 1 -PLUG VALVES ARE OPERATIONAL

NOTES

1. EXISTING 8" DRAIN LINE MAY NOT BE USED TO DRAIN SURGE TANKS. INSTALL A

TEMPORARY LINESTOP ALONG THE 24" SURGE TANK PIPING UPSTREAM OF THE 24"

PLUG VALVE. ONCE THE PIPING DOWNSTREAM OF THE LINESTOP HAS BEEN

DRAINED, INSTALL A 24" BLIND FLANGE DOWNSTREAM OF THE 24" PLUG VALVE.

2. EXISTING SURGE TANKS SHOWN ARE BASED ON RECORD DRAWINGS, "ANACOSTIA

PUMPING STATION NO. 2," DATED MARCH 19, 1976.

3. SEE SPECIFICATION SECTION 01320 FOR SEQUENCE OF CONSTRUCTION, AND

CONSTRUCTION CONSTRAINTS.

4. LINE STOP SHALL BE A TWO-PIECE FULL ENCIRCLEMENT, PRESSURE RETENTION

TYPE SPLIT TEE DESIGN, AND CONSIST OF STAINLESS STEEL SECTIONS AND

HARDWARE. MINIMUM WORKING PRESSURE SHALL BE 150 PSIG. COMPLETION PLUG

SHALL BE STAINLESS STEEL OR COMPOSITE POLYMER AND EQUIPPED WITH TWO

CIRCUMFERENTIAL GROOVES. PROVIDE ALL MATERIALS AND EQUIPMENT, TO

PERFORM INSTALLATION OF LINESTOP. PRESSURE TEST LINE STOP FITTING USING

BLIND FLANGE TO MINIMUM 1.5 TIMES WORKING PRESSURE. CONTRACTOR TO

SUBMIT…

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