Plans.pdf

PDF 13 MB Posted May 28, 2026

Attached to: Large Valve Vault Replacement
Solicitation number: 107595
Issued by: Montgomery County, Maryland

About this file

Written by GovTribe AI · Jun 25, 2026

This is a construction plan document prepared by The Wilson T. Ballard Company for the Washington Suburban Sanitary Commission (WSSC) Water in Montgomery County, Maryland, detailing the replacement of water infrastructure at 1200 W. University Boulevard in Silver Spring. The project involves replacement of approximately 87 linear feet of 30-inch water main (48 feet replacement and 39 feet relocation), 48 linear feet of 72-inch water main, and installation of one new 30-inch horizontal valve and associated vault. The existing infrastructure comprises three sections: a 24-inch to 30-inch PCCP main (39 feet for relocation), a 30-inch PCCP main (48 feet for replacement), and a 72-inch PCCP main (48 feet for replacement to be replaced with 72-inch steel pipe). The project is located within the Sligo Creek Stream Valley Park on MNCPPC property and along University Boulevard (MD 193), with construction anticipated to commence in summer 2025 and be completed by fall 2025. The contract number is BT7370A22, site number BT7370A22, located in the Wheaton Election District No. 13 within the Sligo Creek Mini Drainage Basin. The design was certified by licensed Maryland Professional Engineer Shawn T. Burnett (License No. 20615, expiration 10/21/2026) and approved by John Marshall (License No. 12679, expiration 10/27/2025).

The project specifications require all 30-inch ductile iron water mains to be Class 54 with external coating and cathodic protection, and all 72-inch steel water mains to have 7/8-inch wall thickness with external coating and cathodic protection per WSSC standards, with no polyethylene encasing permitted. Compaction testing must be performed by a licensed geotechnical engineer following ASTM standards at minimum rates of one test per 100 linear feet of fill. All pipe work must pass hydrostatic testing at 200 PSI for 2 hours and bacterial testing prior to connection. The contractor is responsible for tree protection and restoration, including replacement of removed trees at a 1:1 diameter breast height ratio (79 inches total), installation of temporary pedestrian trail access to maintain Sligo Creek Trail usage during construction, and full restoration of the trail upon completion. Environmental controls include silt fence installation, sediment control measures per WSSC standards, daily street sweeping, and proper management of excavated materials and slurry. The contractor must coordinate with multiple WSSC divisions including Systems Control Division, Water/Wastewater Systems Assessment Division, and Pipeline Construction Division at minimum 60 days in advance, and must maintain water service to affected properties through temporary water service connections limited to maximum 8-hour shutdowns. Additional coordination is required with MNCPPC for park property work and with Maryland utilities via Miss Utility (811) notification at least 72 hours prior to any ground disturbance.

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Large_Valve_Vault_Replacement_(Addendum_#1_Revision).pdf	PDF	Jun 22, 2026
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Geotechnical_Report.pdf	PDF	May 28, 2026
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30" WATER VALVE

1200 W. UNIVERSITY BOULEVARD

SILVER SPRING, MONTGOMERY COUNTY, MARYLAND

CONTRACT NO. BT7370A22

SITE NO.

BT7370A22

GENERAL NOTES

1. AT THE END OF CONSTRUCTION, CONTRACTOR SHALL RESTORE THE SLIGO CREEK

TRAIL, AND ALL ASSOCIATED LANDSCAPING, CHANNELS, SWALES, DITCHES, ETC. TO

THE ORIGINAL CONDITION (PRIOR TO CONSTRUCTION.)

2. ALL 30" DUCTILE IRON WATER MAINS AND FITTINGS TO BE CLASS 54 WITH EXTERNAL

COATING AND CATHODIC PROTECTION FOR CORROSION CONTROL PER SPECIFICATIONS

AND AS SHOWN ON PLANS. DO NOT POLYETHYLENE ENCASE THE WATER MAINS.

3. ALL 72" STEEL WATER MAINS AND FITTINGS SHALL HAVE A WALL THICKNESS OF 7 8" WITH

EXTERNAL COATING AND CATHODIC PROTECTION FOR CORROSION CONTROL PER

SPECIFICATIONS AND AS SHOWN ON PLANS. DO NOT POLYETHYLENE ENCASE THE

WATER MAINS.

4. SEE CORROSION CONTROL NOTES ON SHEET CP-1.

5. LICENSED GEOTECHNICAL ENGINEER TO PERFORM COMPACTION TESTING FOLLOWING

ASTM D1556, ASTM D6938 OR ASTM D2937 AT A MINIMUM RATE OF 1 TEST FOR EVERY 100

FEET OF FILL ALONG MAIN TRENCH AND AT EVERY LATERAL TRENCH, STRUCTURE AND

VALVE BOX IN TYPE I AREAS.

6. CONTRACTOR SHALL TEST PIT TO LOCATE PIPE JOINTS FOR THE EX. 30" PCCP WATER

MAIN AND EX. 72" PCCP WATER MAIN USING VAC-TRUCK PRIOR TO CONSTRUCTION.

CONTRACTOR SHALL TEST PIT EXISTING WATER MAIN CONNECTION LOCATIONS AND ALL

UTILITY CROSSINGS PRIOR TO BEGINNING CONSTRUCTION OF WATER MAIN, AND MAKE

ANY ADJUSTMENTS AS NECESSARY WITH PRIOR APPROVAL OF WSSC WATER. THERE IS

THE POSSIBILITY OF ENCOUNTERING POURED LEAD JOINTS. IF POURED JOINT PIPE IS

FOUND, REPLACE WITH MECHANICAL JOINT PIPE AND FITTINGS. REMOVAL OF THE JOINT

IS INCIDENTAL TO THE CONTRACT. SEE SPECIAL CONSTRUCTION REQUIREMENTS FOR

WORK PERFORMED IN VICINITY OF EXISTING PCCP MAINS ON SHEET 2.

7. ALL PIPE WORK TO BE TESTED AT 200 PSI FOR 2 HOURS AND PASSING TEST FOR

HYDROSTATIC AND BACTERIAL PRIOR TO CONNECTION.

8. NEW 30" VALVE MUST BE TESTED ABOVE GROUND PRIOR TO CONSTRUCTION.

9. CONTRACTOR SHALL VERIFY THE TYPE, SIZE AND LOCATION OF EXISTING FITTINGS ON

THE WATER MAIN TO BE REPLACED.

10. FOR SAME TRENCH REPLACEMENT, ALL EXISTING VALVES, FIRE HYDRANTS, VALVE

BOXES, COPPER, BRASS, FITTINGS AND PIPE MUST BE REMOVED FOR SALVAGE AND

RETURNED TO WSSC ANACOSTIA WAREHOUSE, AT NO COST TO WSSC WATER. FOR PIPE

RELOCATION, FIRE HYDRANTS AND VALVE BOXES MUST BE REMOVED FOR SALVAGE

AND RETURNED TO WSSC ANACOSTIA WAREHOUSE, AT NO COST TO WSSC WATER.

EXISTING LARGE VALVE TO BE REMOVED FOR SALVAGE AS ONE OPERATING PIECE

(UNLESS ALREADY BROKEN) TO WSSC ANACOSTIA WAREHOUSE AT NO ADDITIONAL

COST TO WSSC WATER.

11. FOR MAINS SMALLER THAN 16 INCHES, OPERATE VALVES UNDER DIRECT SUPERVISION

OF CERTIFIED WSSC WATER EMPLOYEE. FOR MAINS 16 INCHES AND LARGER, WSSC

WATER WILL OPERATE VALVES FOR SHUTDOWNS.

12. CONTRACTOR SHALL PROVIDE ALL MATERIALS AND MATERIAL CERTIFICATIONS FOR

THIS CONTRACT IN ACCORDANCE WITH APPROVED DRAWINGS AND SPECIFICATIONS.

13. CONTRACTOR SHALL NOT SHUT DOWN EXISTING WATER MAIN UNTIL THE NEW VALVE IS

ON SITE AND HAS BEEN TESTED.ONCE THE CONTRACTOR STARTS TO REMOVE THE

EXISTING VALVE, THE CONTRACTOR MUST CONTINUE TO WORK UNTIL THE NEW VALVE

HAS BEEN INSTALLED IN ITS PLACE AND WATER MAIN IS READY TO BE PLACED BACK IN

SERVICE.

14. INSTALL ALL WATER MAINS AND TEMPORARY CAPS/PLUGS ON BOTH THE REPLACEMENT

AND EXISTING MAINS AND TEST, AS SHOWN ON THESE DRAWINGS.

15. CONTRACTOR SHALL NOTIFY MISS UTILITY AT LEAST 72 HOURS IN ADVANCE OF ANY

WORK IN THIS AREA, SO APPROPRIATE MARKING OF EXISTING UTILITIES CAN BE MADE.

CALL 811 OR 1-800-257-7777 OR LOG ON TO WWW.CALL811.COM OR

HTTP://WWW.MISSUTILITY.NET

16. 1"=10' SCALE DRAWINGS ARE BASED ON TOPOGRAPHIC SURVEY DATA COLLECTED BY

THE WILSON T. BALLARD COMPANY DURING MARCH 2023. HORIZONTAL DATUM = NAD

83/91 AND VERTICAL DATUM = NGVD 29.

17. CONTRACTOR SHALL NOT STOCKPILE MATERIALS OR EQUIPMENT WITHIN THE DRIP-LINE

OF ANY TREES.

18. PROVIDE TREE TRUNK PROTECTION FOR ALL TREES WITHIN 15 FEET OF ANY WORK. SEE

STANDARD DETAIL SC/19.0, EXCEPT NOMINAL 2"X10" OR 2"X12"; PINE BOARDS MAY BE

USED.

19. CONTRACTOR SHALL LOCATE ALL WHC'S IN THE FIELD. THE CONTRACTOR, AT NO COST

TO WSSC WATER, SHALL REPAIR ANY DAMAGE TO HOUSE CONNECTIONS AND WATER

MAINS THEY MAY CAUSE.

20. CONTRACTOR SHALL BE RESPONSIBLE FOR OBTAINING STAGING AREA(S) AND FOR

MOBILIZATION TO AND FROM SUCH AREA(S) AT NO ADDITIONAL COST TO THE WSSC

WATER. CONTRACTOR IS NOT ALLOWED TO USE MNCPPC PROPERTY AS A STAGING

AREA.

21. CONTRACTOR SHALL PROVIDE STAKEOUT FOR THE PROPOSED RELOCATIONS.

22. PROVIDE TEMPORARY WATER SERVICE DURING CONSTRUCTION FOR WATER SERVICES

AFFECTED BY THE WATER MAIN REPLACEMENTS. TEMPORARY WATER SERVICE

CONNECTIONS SHALL BE AS PER STANDARD DETAILS W/5.16 AND W/5.16a. ALL

SHUTDOWNS SHALL BE LIMITED TO NO LONGER THAN 8 HOURS. NO VALVES ARE TO BE

OPERATED WITHOUT A WSSC WATER INSPECTOR ON SITE.

23. INSTALL REPLACEMENT WATER MAINS WITH A MINIMUM OF 42" COVER, AND RELOCATED

WATER MAINS WITH MINIMUM OF 48" COVER UNLESS OTHERWISE NOTED ON THE

DRAWING.

24. ALL VALVE EXTENSIONS ARE TO BE INSTALLED PER STD. DETAIL W/2.2.

25. ANY YARD WITH ZOYSIA GRASS THAT IS DISTURBED OUTSIDE OF PARK PROPERTY MUST

BE REPLACED WITH ZOYSIA GRASS. FOLLOW RECOMMENDED TIME FOR PLANTING

ZOYSIA GRASS.

26. IN ACCORDANCE WITH CODE OF MARYLAND REGULATIONS (COMAR) 26.04.01.33, DIRECT

AND INDIRECT ADDITIVES, SUPPLIERS OF WATER SHALL ONLY USE PRODUCTS (AND

MATERIALS THAT COME IN CONTACT WITH WATER INTENDED FOR USE IN PUBLIC WATER

SUPPLY) THAT MEET THE APPLICABLE AMERICAN NATIONAL STANDARDS INSTITUTE / NSF

INTERNATIONAL (ANSI/NSF) STANDARDS FOR DIRECT OR INDIRECT DRINKING WATER

ADDITIVES. THE PRODUCTS CAN ALSO BE CERTIFIED BY AN ORGANIZATION ACCREDITED

BY THE ANSI FOR SUCH TESTING (I.E., INTERNATIONAL ASSOCIATION OF PLUMBING AND

MECHANICAL OFFICIALS RESEARCH AND TESTING, ONTARIO CA, UNDERWRITERS

LABORATORY, NORTHBROOK IL, AND WATER QUALITY ASSOCIATION, LISLE IL).

27. IN COMPLIANCE WITH COMAR 09.20.01.03 AND THE SAFE DRINKING WATER ACT (SECTION

1417(A)(4)(8), MATERIALS THAT COME IN CONTACT WITH WATER INTENDED FOR USE IN

PUBLIC WATER SUPPLY SHALL COMPLY WITH THE REDUCTION OF LEAD IN DRINKING

WATER ACT, WHICH WENT INTO EFFECT IN MARYLAND IN JANUARY 2012.

28. NOTIFY KAREN WRIGHT, SYSTEMS CONTROL DIVISION MANAGER, AT 301-206-8416 TWO

(2) WEEKS PRIOR TO WATER MAIN SHUTDOWN.

29. SEE NOTIFICATION REQUIREMENTS IN THE EXISTING PCCP SHUTDOWN NOTES ON

SHEET 2. IN ADDITION, CONTRACTOR MUST CONTACT THE FOLLOWING

PERSONS/AGENCIES AT LEAST SEVEN (14) DAYS PRIOR TO START OF ANY WORK UNDER

THIS CONTRACT:

A. KEVIN LETHBRIDGE, CONSTRUCTION MANAGER, PIPELINE CONSTRUCTION

DIVISION OF WSSC, LYTTONSVILLE DEPOT, (301) 206- 7339.

B. MARYLAND NATIONAL CAPITAL PARKS AND PLANNING COMMISSION

(MNCPPC), SEE PERMIT FOR CONTACT INFORMATION.

FIELD REVIEW BY: ____________________________________ DATE: ________________________

AND VALVE VAULT REPLACEMENT

INDEX OF SHEETS

SHEET NO. DESCRIPTION

1 TITLE SHEET, GENERAL NOTES

2 BLOCKING NOTES, SEDIMENT

CONTROL NOTES, SPECIAL

CONSTRUCTION NOTES

3 1"=10' SCALE PLAN

4 1"=5' PROFILES

5 SITE ACCESS PLAN

6 SPECIAL DETAILS

7-8 MNCPPC SPECIAL DETAILS

FOR CONSTRUCTION

9 TEMPORARY BY-PASS PLAN/

SUGGESTED SEQUENCE OF

CONSTRUCTION

CP-1 CATHODIC PROTECTION PLAN

SC-1 SEDIMENT CONTROL DETAILS

EXISTING WATER MAINS TO BE REPLACED/ RELOCATED

(SHEET 3)

SHEET

NO. STREET EX. WATER

MAIN SIZE

NEW WATER

MAIN SIZE LENGTH RENEWAL

METHOD FROM TO PIPE ID

3 W UNIVERSITY

BOULEVARD 24"/30" PCCP 30" DIP 39' RELOCATION VALVE

VV14D02127

JOINT

PJM16000

WS00087787 /

WS00087788

3 W UNIVERSITY

BOULEVARD 30" PCCP 30" DIP 48' REPLACEMENT - - WS00122845

3 W UNIVERSITY

BOULEVARD 72" PCCP 72" STEEL 48' REPLACEMENT - - WS00087747

WSSC Erosion and Sediment Control Approval Note:

This plan has been approved per requirements in the:

Standard Procedures of the WSSC Regulations for Utility Erosion and Sediment Control, Section V. Paragraph A.

Reviewed by: __________________________________________ Date: _________________ Plan No.: _______________________BT7370A22

TOTAL 30" REPLACEMENT= 48'

TOTAL 30" RELOCATION= 39'

TOTAL 72" RELOCATION= 48'

TOTAL REPLACEMENT = 135' = 0.03 MILES

ENGINEER:

MONTGOMERY CO.

ADEQUATE SURVEY

200'S OF

CONTRACT

DATE

DATE STARTED

DATE FINALED

Drawing No.

FINALED BY

DATE COMPLETED

TYPE MANHOLES

TYPE PIPE W.

1 thru 9 Plans/Profiles/Details

Description

P.G.CO.D.P.W.&T.

SED. CONTROL

CONTRACT MANAGER

INSPECTOR

CONTRACTOR

L & G

AS BUILT DATA

TOWN NOTIFICATION

STATE HGWY. ADM.

STATE BD. HEALTH

PERMIT REQUIREMENTS

M.N.C.P.&P.C.

WETLANDS / WATERWAYS

TREE

DATE REVISIONS

PAGECo. GRID

VICINITY MAP

SCALE

ON PROP. R/W REQ'D

OFF PROP. R/W REQ'D

THESE DOCUMENTS CONTAIN

PRIVILEGED AND CONFIDENTIAL

INFORMATION WHICH SHALL NOT

BE REDISTRIBUTED WITHOUT

PRIOR WSSC APPROVAL

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

OR LOG ON TO www.call811.com or www.missutility.net 72

HOURS IN ADVANCE OF ANY WORK IN THIS VICINITY

OTHER UTILITIES

*TO BE ACQUIRED BY APPLICANT

1" = 2,000'

MONTGOMERY 5286 F05

DRAWING INDEX

IS REQUIRED

NOT REQUIRED

IS REQUIRED

NOT REQUIRED

IS REQUIRED

NOT REQUIRED

DRAWN

CHECK

PIPELINE DESIGN DIVISION

XXX

DATE DIVISION MANAGER

- 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

M.D. D.O.E. - WMA NOT REQUIRED

SECTION MANAGER

10/16/2024 9:14 AM - PLOT DATE

BT7370A22

214NW02

WHEATON ELECTION DISTRICT NO. 13

30" WATER VALVE AND VALVE VAULT REPLACEMENT

1200 W. UNIVERSITY BOULEVARD

SILVER SPRING, MONTGOMERY COUNTY, MARYLAND

SLIGO CREEK MINI DRAINAGE BASIN NOS. 064

HHG: 530'

LHG: 460'

PRESSURE ZONE= 495A

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.

NAME: SHAWN T. BURNETT

LICENSE NO.: 20615

EXP. DATE: 10/21/2026

NAME: THE WILSON T. BALLARD COMPANY

ADDRESS: 17 GWYNNS MILL COURT, OWINGS MILLS, MD 21117

PHONE: (410) 363-0150

CONTACT : SHAWN BURNETT

EMAIL: SBURNETT@WTBCO.COMPA

\P M

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WSSC

WASHINGTON SUBURBAN SANITARY COMMISSION

M.D.E. CONST. IS REQUIRED

HHG: 670'

LHG: 598'

PRESSURE ZONE (72" W, V019) = 660A

UNIVERSITY BOULEVARD W (MD 193)

2022 AADT=25,771 POSTED 35 MPH

SC-1 Sediment Control Details

CP-1 Cathodic Protection Plan

DATE REVISIONS

200'S OF

CONTRACT

ENGINEER:THESE DOCUMENTS CONTAIN

PRIVILEGED AND CONFIDENTIAL

INFORMATION WHICH SHALL NOT

BE REDISTRIBUTED WITHOUT

PRIOR WSSC APPROVAL VE

- B

N E

H O

N O

D R

N O

T O

N E

H O

N T

S H

T, A D

S C

A C

C O

R D

10/16/2024 9:15 AM - PLOT DATE

DATE

BT7370A22

214NW02

WHEATON ELECTION DISTRICT NO. 13

30" WATER VALVE AND VALVE VAULT REPLACEMENT

1200 W. UNIVERSITY BOULEVARD

SILVER SPRING, MONTGOMERY COUNTY, MARYLAND

WATER INFRASTRUCTURE SECTION

PROJECT MANAGER

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.

NAME: SHAWN T. BURNETT

LICENSE NO.: 20615

EXP. DATE: 10/21/2026

NAME: THE WILSON T. BALLARD COMPANY

ADDRESS: 17 GWYNNS MILL COURT, OWINGS MILLS, MD 21117

PHONE: (410) 363-0150

CONTACT : SHAWN BURNETT

EMAIL: SBURNETT@WTBCO.COM

SLIGO CREEK MINI DRAINAGE BASIN NOS. 064

C \P

B T7

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-0

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WASHINGTON SUBURBAN SANITARY COMMISSION

WSSC

HHG: 530'

LHG: 460'

PRESSURE ZONE= 495A

HHG: 670'

LHG: 598'

PRESSURE ZONE (72" W, V019) = 660A

BLOCKING NOTES

1. RESTRAIN ALL PIPE JOINTS AND FITTINGS, SEE SPECIFICATIONS.

ENVIRONMENTAL SEDIMENT CONTROL NOTES

1. CONTACT WSSC WATER ENVIRONMENTAL PROGRAMS SECTION AT (301)

206-8077, 48 HOURS PRIOR TO STARTING ANY UTILITY WORK UNDER THIS

CONTRACT.

2. ANY GROUND WATER OR SURFACE WATER PUMPED DURING THIS PROJECT

SHOULD BE DISCHARGED THROUGH AN APPROVED DE-WATERING DEVICE. SEE

STANDARD DETAIL SC/15.0, SC/15.1.

3. STREETS AND PAVED WALKWAYS SHALL BE BROOM SWEPT DAILY.

4. INSTALL CURB INLET OR AT-GRADE INLET PROTECTION AS NEEDED OR AS

DIRECTED BY WSSC ENVIRONMENTAL STAFF. SEE STANDARD DETAIL SC/16.0,

SC/16.1.

5. PLACE SILT FENCE PER STANDARD DETAIL SC/1.0 ALONG LOW SIDE OF

EXCAVATED AREA WHEN WORKING IN NON-PAVED AREAS OR AS SHOWN ON THE

PLANS, OR AS DIRECTED BY WSSC ENVIRONMENTAL STAFF IN THE FIELD.

CONTRACTOR SHALL PROVIDE DAILY TEMPORARY STABILIZATION FOR ALL

DISTURBED NON-PAVED AREAS.

6. ANY EXCAVATED OR STOCKPILES MATERIAL LEFT OVERNIGHT SHALL BE

COVERED WITH AN IMPERMEABLE (PLASTIC) MATERIAL. PROVIDE SEDIMENT

CONTROL FOR ALL OFFSITE STAGING/STOCKPILE AREAS.

7. WHEN WORKING IN PAVED SURFACES, PLACE EXCAVATED MATERIAL ON HIGH

SIDE OF TRENCH.

8. ANY SLURRY GENERATED BY PAVEMENT SAW CUTTING SHALL BE CONTAINED BY

THE CONTRACTOR TO PREVENT SLURRY FROM ENTERING THE EXISTING STORM

DRAIN SYSTEM OR WATERWAY BY USING APPROVED METHODS, DEVICES, OR AS

DIRECTED BY THE WSSC ENVIRONMENTAL STAFF. CONTRACTOR SHALL

PROPERLY REMOVE AND DISPOSE OF CONTAINED SLURRY AT THE END OF EACH

WORK DAY.

9. FOR AREAS WITHIN THE LIMIT OF DISTURBANCE WHICH DO NOT DRAIN TO AN

APPROVED EROSION AND SEDIMENT CONTROL MEASURE AND/OR WHERE THE

INSTALLATION OF CONTROLS IS NOT FEASIBLE (ROADWAY, SIDEWALK, ETC.)/

CONTRACTOR SHALL ONLY DISTURB AREA WHICH CAN BE COMPLETED AND

STABILIZED BY THE END OF EACH WORKING DAY. STABILIZATION SHALL BE AS

FOLLOWS:

A. FOR AREAS TO BE PAVED: STONE BASE SHALL BE APPLIED.

B. FOR AREAS TO BE VEGETATIVELY STABILIZED:

i. PERMANENT SEED AND SOIL STABILIZATION MATTING FOR

SOD FOR ALL STEEP SLOPES, CHANNELS, OR SWALES

ii. PERMANENT SEED AND MULCH FOR ALL OTHER AREAS. ANY

AREAS WHICH CAN NOT BE STABILIZED BY THE END OF EACH

WORKING DAY MUST HAVE SILT FENCE SC/1.0 INSTALLED ON

THE DOWN SLOPE SIDE.

MDE NOTES

1. IN ACCORDANCE WITH TEN STATE STANDARDS, A MINIMUM OF TEN (10) FOOT

HORIZONTAL AND EIGHTEEN (18) INCH VERTICAL SEPARATION MUST BE

MAINTAINED BETWEEN WATER MAINS AND SANITARY SEWER. WHEN IT IS

IMPOSSIBLE TO OBTAIN THE MINIMAL HORIZONTAL 10 FOOT HORIZONTAL

SEPARATION AND/OR 18 INCH VERTICAL SEPARATION BETWEEN WATER MAINS

AND SANITARY SEWER, MDE MUST SPECIFICALLY APPROVE ANY VARIANCE

SUPPORTED BY DATA FROM THE DESIGN ENGINEER.

2. ALL WATER LINES SHALL BE DISINFECTED ACCORDING TO AWWA STANDARD

C651. BACTERIOLOGICAL TESTS SHALL BE SUBMITTED TO MDE WATER SUPPLY

PROGRAM FOR APPROVAL PRIOR TO PLACING THE MAIN INTO SERVICE.

SPECIAL CONSTRUCTION REQUIREMENTS FOR WORK

PERFORMED IN THE VICINTIY OF EXISTING PCCP

WATER MAINS

1. CONSTRUCTION VEHICLES GENERATING LIVE LOADS GREATER THAN AASHTO

HS20 (APPROX. 40,000 LBS OR GREATER), AND ANY VIBRATORY ROLLER

COMPACTION EQUIPMENT, SHALL NOT BE PERMITTED WITHIN 10 FEET CLEAR OF

THE OUTER EDGE OF EX. PCCP WATER MAIN UNLESS APPROVED BY WSSC.

2. THE CONTRACTOR SHALL SUBMIT CONSTRUCTION VEHICLE SPECIFICATIONS

FOR ALL VEHICLES PROPOSED FOR USE CLOSER THAN 10 FEET CLEAR, OR IF

PROPOSED TO CROSS EX. PCCP WATER MAINS, TO THE WSSC PROJECT

MANAGER/CONTACT PERSON FOR APPROVAL PRIOR TO COMMENCING WORK.

ANY VEHICLE NOT PREVIOUSLY IDENTIFIED DURING THE DESIGN REVIEW OF

THESE PLANS WILL REQUIRE AN ADDITIONAL LOADING ANALYSIS REVIEW.

3. IF NECESSARY, HARDWOOD TIMBER MATS OF APPROPRIATE SIZE AND

THICKNESS (SUFFICIENT TO FIT THE LARGEST CONSTRUCTION VEHICLE

PROPOSED AND 1-FOOT THICK) SHALL BE PLACED OVER THE EXISTING PCCP

MAIN TO ALLOW WSSC APPROVED CONSTRUCTION VEHICLE TRAFFIC TO CROSS

OVER THE PIPELINE AND SAFELY DISTRIBUTE LIVE LOADS.

4. STOCKPILING OF SOIL OR OTHER MATERIAL IS NOT PERMITTED WITHIN 10 FEET

CLEAR OF THE EDGE OF THE ROW OF THE EX. MAINS, TO PREVENT ROW

ENCROACHMENT.

5. THE CONTRACTOR SHALL LOCATE AND STAKEOUT THE EX. PCCP WATER MAINS

AND EDGE OF THE ROW AND MAINTAIN THE MARKERS DURING CONSTRUCTION.

UNLESS OTHERWISE APPROVED BY WSSC PROJECT MANAGER/ CONTACT

PERSON, CONSTRUCTION VEHICLES ARE NOT PERMITTED WITHIN 10 FEET

CLEAR OF EX. PCCP WATER MAIN AT ANY TIME, WHEN LESS THAN 6 FEET OF

COVER EXISTS OVER THE MAIN. THE CONTRACTOR IS RESPONSIBLE FOR

IDENTIFYING AREAS WHERE LESS THAN 6 FEET OF COVER EXISTS OVER THE

MAINS DURING CONSTRUCTION VIA VACUUM TEST PITTING.

6. ALL BACKFILL AND COMPACTION OVER THE EX. PCCP MAINS, AT ANY DEPTH OF

COVER, SHALL BE PERFORMED MANUALLY AND/OR WITH VEHICLES POSITIONED

A MINIMUM OF 10 FEET CLEAR OF THE OUTER EDGE OF THE MAIN.

7. ALL ROCKS, BROKEN PAVEMENT, CURBING AND OTHER DEBRIS HAVING ANY

DIMENSION GREATER THAN 3 INCHES SHALL BE REMOVED FROM ABOVE AND

AROUND THE MAIN(S) PRIOR TO PLACING AND COMPACTING FILL, SUB GRADE

MATERIAL OR PAVING OVER THE MAIN (INCLUDING PIPE BEDDING).

8. THE CONTRACTOR SHALL NOTIFY THE APPROPRIATE PIPELINE CONSTRUCTION

DIVISION INSPECTOR ASSIGNED TO THE PROJECT AT LEAST 72 HOURS IN

ADVANCE OF ANY GRADING OR PAVING IN THE VICINITY OF THE EX. PCCP MAINS.

ALL GRADING AND PAVING OVER THE MAINS SHALL BE COORDINATED AND

PERFORMED UNDER THE SUPERVISION OF A WSSC INSPECTOR.

9. THE CONTRACTOR SHALL USE SPECIAL CARE WHILE PERFORMING WORK IN THE

VICINITY OF THE EX. PCCP WATER MAINS AND SHALL STRICTLY ADHERE TO

THESE SPECIAL CONSTRUCTION REQUIREMENTS. THE CONTRACTOR IS

RESPONSIBLE FOR ANY DAMAGE AND/OR REPLACEMENT REQUIRED AS A

RESULT OF HIS WORK OVER THE MAINS AT NO ADDITIONAL COST TO WSSC.

10. IF SHUTDOWN AND DE-WATERING OF THE EX. PCCP WATER MAIN IS REQUIRED,

COORDINATION WITH SYSTEMS CONTROL DIVISION (SCD) IS MANDATORY. A

MINIMUM OF 60 DAYS ADVANCE NOTICE TO SCD IS REQUIRED TO COORDINATE

WATER MAIN SHUTDOWN, DE-PRESSURIZATION, AND DE-WATERING OF EX. PCCP

WATER MAINS AND REMOVAL OF THE ACOUSTIC FIBER OPTIC (AFO) MONITORING

CABLE. SCD SHALL PERFORM THE SHUTDOWN SCHEDULING AND THE UTILITY

SERVICES DEPARTMENT SHALL EXECUTE THE SHUTDOWN, DE-PRESSURIZATION

AND DE-WATERING.

11. TEST PITS TO VERIFY THE HORIZONTAL AND VERTICAL ALIGNMENT OF THE PCCP

MAINS SHALL BE VIA VACUUM TEST PITTING RATHER THAN OPEN-CUT

TRENCHING ON LIVE PCCP MAINS. VACUUM TEST PITTING IS PERFORMED ONLY

TO THE CROWN OF THE EXISTING PCCP WATER MAINS. BACKFILL THE VACUUM

TEST PIT IMMEDIATELY AFTER THE PERTINENT INFORMATION IS GATHERED.

ANY DAMAGE TO THE EX. WATER MAIN COATING RESULTING FROM THE

CONTRACTOR'S OPERATIONS SHALL BE REPAIRED AT THE CONTRACTOR'S

EXPENSE. DAMAGE AND REPAIRS SHALL BE INSPECTED BY WSSC ENGINEERS

AND/OR THE PIPE MANUFACTURER'S TECHNICAL FIELD REPRESENTATIVE, AND

BE REPAIRED ACCORDINGLY PRIOR TO BACKFILLING.

12. DURING BACKFILLING, COMPACTED CR-6 OR #57 STONE SHALL BE USED TO 12

INCHES ABOVE THE CROWN OF THE PCCP MAIN. THE REMAINING EXCAVATION

SHALL BE BACKFILLED AND COMPACTED WITH SUITABLE MATERIAL IN

ACCORDANCE WITH STANDARD SPECIFICATION SECTION 02315.

SPECIAL CONSTRUCTION REQUIREMENTS FOR WORK

PERFORMED IN THE VICINTIY OF EXISTING PCCP

WATER MAINS

NOTIFICATIONS:

1. THE CONTRACTOR SHALL COORDINATE WITH THE APPROPRIATE PIPELINE

CONSTRUCTION DIVISION INSPECTOR ASSIGNED TO THE PROJECT.

NOTIFICATIONS ARE REQUIRED AT A MINIMUM OF 60 DAYS IN ADVANCE OF

WORK TO ARRANGE SHUTDOWN AND INSPECTION OF THE EX. PCCP WATER

MAINS.

2. THE CONTRACTOR AND/OR THE APPROPRIATE PIPELINE CONSTRUCTION

DIVISION INSPECTOR SHALL CONTACT KAREN WRIGHT, SYSTEMS CONTROL

DIVISION - DIVISION MANAGER, AT 301-206-8416 A MINIMUM OF 60 DAYS IN

ADVANCE OF WORK TO COORDINATE THE SHUTDOWN AND DE-WATERING OF

THE EX. PCCP WATER MAINS.

3. THE CONTRACTOR AND/OR THE APPROPRIATE PIPELINE CONSTRUCTION

DIVISION INSPECTOR SHALL NOTIFY ARTURO ACEVEDO AT 301-206-8478 OF THE

WATER/WASTEWATER SYSTEMS ASSESSMENT DIVISION 60 DAYS IN ADVANCE OF

WORK TO COORDINATE THE REMOVAL AND REPLACEMENT OF ANY PCCP PIPE

SECTIONS. FURTHER COORDINATION IS REQUIRED TO REMOVE AND REINSTALL

THE ACOUSTIC FIBER OPTIC (AFO) MONITORING SYSTEM WITHIN THE PCCP

PIPELINE. COORDINATION INCLUDES PLANNING WITH THE INSPECTION

CONSULTANT(S), WSSC WATER/WASTEWATER SYSTEMS ASSESSMENT DIVISION,

AND WSSC UTILITY SERVICES TEAM STAFF. THE PCCP MAIN MAY HAVE AN AFO

MONITORING CABLE INSTALLED INSIDE, AND THIS CABLE MUST NOT BE CUT OR

DAMAGED. THE WATER/WASTEWATER SYSTEMS ASSESSMENT DIVISION MUST

BE NOTIFIED 60 DAYS IN ADVANCE OF WORK TO COORDINATE AND PLAN THE

AFO CABLE REMOVAL PRIOR TO REMOVING ANY PIPE SECTIONS AND TO

COORDINATE REINSTALLATION OF THE CABLE FOLLOWING THE PIPE

REPLACEMENT. IF THE PCCP PIPELINE DOES NOT HAVE AN AFO MONITORING

SYSTEM INSTALLED, 60-DAY ADVANCE NOTIFICATION IS STILL REQUIRED TO

COORDINATE THE REMOVAL & REPLACEMENT OF ANY PCCP PIPE SECTIONS, TO

DOCUMENT THE EXTERNAL CONDITIONS, AND TO COLLECT SAMPLES OF THE

PIPE SECTION FOR FORENSIC ANALYSIS.

GENERAL NOTES FOR WORKING ON M-NCPPC PROPERTY

1. A PRE-CONSTRUCTION MEETING MUST BE HELD PRIOR TO START OF WORK

WITH 72-HOURS PRIOR NOTICE. THE M-NCPPC PARK MANAGER, INSPECTOR, AND

ARBORIST SHALL BE REPRESENTED AT THE MEETING.

2. M-NCPPC RESERVES THE RIGHT TO ADJUST AND MODIFY THE LIMITS OF

DISTURBANCE IN THE FIELD TO MINIMIZE IMPACTS OF WORK.

3. CONTRACTOR SHALL BE RESPONSIBLE FOR MAINTAINING SAFE FACILITY

ACCESS THROUGHOUT CONSTRUCTION AND PROVIDE ANY APPROPRIATE

DETOURS, TEMPORARY FACILITIES, AND SIGNAGE AS REQUESTED BY THE PARK

MANAGER.

4. SITE RESTORATION AND REPAIR/REPLACEMENT OF DAMAGED INFRASTRUCTURE

SHALL BE IN ACCORDANCE WITH M-NCPPC DETAILS, STANDARDS, AND

SPECIFICATIONS AT THE DIRECTION OF THE M-NCPPC INSPECTOR AT NO COST

TO M-NCPPC.

5. TREE PROTECTION FENCING SHOULD BE 14-GAUGE WELDED WIRE TYPE (WITH

METAL STAKES AT 10 FEET O.C.) AND MUST BE MAINTAINED THROUGHOUT

CONSTRUCTION. TREE SAVE AREA SIGNAGE SHOULD BE POSTED EVERY 30 FEET

ALONG FENCING. TREE PROTECTION FENCE SHOULD BE INSTALLED BY THE

CONTRACTOR AND INSPECTED BY M-NCPPC ARBORIST PRIOR TO START OF

CONSTRUCTION.

6. THE ENTIRE L.O.D. SHALL BE FENCED AS DIRECTED BY THE PARK INSPECTOR.

WHERE SILT FENCE , SUPER SILT FENCE, OR TREE PROTECTION FENCE IS NOT

REQUIRED, ORANGE BLAZE SAFETY FENCE MAY BE USED.

7. ALL PLANTING SUBSTITUTIONS MUST BE APPROVED BY M-NCPPC

HORTICULTURIST. PLANT MATERIALS AND LOCATIONS SHOULD BE INSPECTED

BY M-NCPPC HORTICULTURIST PRIOR TO INSTALLATION.

8. PROVIDE 4-FOOT HIGH (1-FOOT MINIMUM DIAMETER) 14-GAUGE WELDED WIRE

DEER PROTECTION CAGES WITH MINIMUM OF ONE SUPPORT STAKE FOR ALL

REFORESTATION TRESS AND SHRUBS TO PREVENT DAMGAGE BY DEER. DO NOT

USE TUBEX AS A SUBSTITUTE.

9. STAGING AREAS AND ACCESS ROUTES SHALL BE DETERMINED IN FIELD TO

MINIMIZE IMPACTS.

10. SPECIAL PROTECTION MEASURES, INCLUDING BUT NOT LIMITED TO 12-INCH

THICK MULCH LAYER ACCESS BEDDING, MATTING, TREE PROTECTION FENCING,

AND SEDIMENT CONTROLS SHALL BE PROVIDED AS DIRECTED IN THE FIELD BY

M-NCPPC. M-NCPPC RESERVES THE RIGHT TO INSPECT CONDITION OF TREES

THROUGHOUT CONSTRUCTION AND MAY REQUIRE REPAIR, REMOVAL, AND/OR

REPLACEMENT OF ANY DAMAGED TREES AT NO COST TO M-NCPPC.

11. THE CONTRACTOR SHALL BE SOLELY RESPONSIBLE FOR UTILITY CLEARANCE

PRIOR TO WORK AND MUST CONTACT M-NCPPC SMARTPARKS SERVICE CENTER

AT (301) 670-8080 ONCE MISS UTILITY CLEARANCE IS OBTAINED AND

FORTY-EIGHT HOURS PRIOR TO THE START OF CONSTRUCTION FOR LOCATION

OF ALL M-NCPPC UNDERGROUND UTILITIES.

12. THE CONTRACTOR WILL NOT DISCHARGE POTABLE WATER DIRECTLY INTO

STREAMS OR STORM DRAINS THAT FLOW INTO MONTGOMERY COUNTY PARK

PROPERTY.

EXISTING PCCP SHUTDOWN NOTES

1. THE EXISTING 30" PCCP MAIN SHALL BE [SHUTDOWN, DEPRESSURIZED,

DEWATERED, INSPECTED] FOR ALL CONSTRUCTION ACTIVITIES WITHIN 20'-0" OF

EXISTING PCCP INCLUDING INSTALLATION OF NEW TEE.

2. VALVES TO FACILITATE SHUTDOWN:

A. V083 ON SHEET 214NW02

B. V175 ON SHEET 214NW02

C. V125 ON SHEET 214NW02

CONTRACTOR TO VERIFY SHUTDOWN OPERATION WITH THE WSSC WATER CONTRACT

MANAGER A MINIMUM OF 60 DAYS IN ADVANCE OF SHUTDOWN.

3. THE EXISTING 72" PCCP MAIN SHALL BE [SHUTDOWN, DEPRESSURIZED,

INSPECTED ISOLATED AND DEWATERED AND AFO CABLE REMOVED] FOR ALL

CONSTRUCTION ACTIVITIES WITHIN 20'-0" OF EXISTING PCCP INCLUDING

INSTALLATION OF NEW OUTLET.

4. VALVES TO FACILITATE SHUTDOWN:

A. V019 ON SHEET 214NW02 (WITHIN PRESSURE ZONE 660A)

B. V111 ON SHEET 214NW01

C. V097 ON SHEET 214NW01, V098 ON SHEET 214NW01

D. V170 ON SHEET 214NW01

E. V101 ON SHEET 214NW01

CONTRACTOR TO VERIFY SHUTDOWN OPERATION WITH THE WSSC WATER

CONTRACT MANAGER A MINIMUM OF 60 DAYS IN ADVANCE OF SHUTDOWN.

5. CONTRACTOR MUST REMOVE AFO CABLE MONITORING THE 72" PCCP WATER

MAIN. CONTACT WATER CONDITION ASSESSMENT SECTION FOR COORDINATION.

6. CONTRACTOR SHALL PROVIDE TEMPORARY WATER SERVICE FOR ALL

PROPERTIES AFFECTED BY SHUTDOWN DURING CONSTRUCTION AS DIRECTED

BY THE WSSC WATER CONTRACT MANAGER.

EXISTING PCCP SHUTDOWN NOTES

NOTIFICATIONS:

1. THE APPLICANT'S CONTACT PERSON AT WSSC WATER SHALL BE THE PROJECT

MANAGER FOR PROJECTS UP TO AND INCLUDING DESIGN PHASE. DURING

CONSTRUCTION PHASE, THE APPLICANT'S CONTACT PERSON AT WSSC WATER

SHALL BE THE PIPELINE CONSTRUCTION DIVISION INSPECTOR.

2. THE APPLICANT SHALL COMMENCE COORDINATION OF THE PCCP PIPELINE

SHUTDOWN PROCESS WITH THE WSSC WATER CONTACT PERSON AT A

MINIMUM OF 60 DAYS IN ADVANCE OF BEGINNING WORK TO COORDINATE THE

PCCP ISOLATION VALVE INSPECTION, PIPELINE ISOLATION AND DEWATERING,

AND/OR AFO MONITORING CABLE REMOVAL, AND RECHARGE OF THE PIPELINE.

3. APPROVAL OF THE PCCP PIPELINE SHUTDOWN IS SUBJECT TO WATER MAIN

TRANSMISSION SYSTEM CONDITIONS AT THE TIME OF REQUEST.

RESCHEDULING OF THE PROPOSED SHUTDOWN TIME AND DURATION MAY BE

REQUIRED AND IS AT THE DISCRETION OF WSSC.

4. THE APPLICANT'S CONTACT PERSON AT WSSC SHALL COORDINATE THE PCCP

SHUTDOWN A MINIMUM OF 60 DAYS IN ADVANCE OF WORK WITH THE SYSTEMS

CONTROL DIVISION MANAGER (KAREN WRIGHT @ 301-206-8416), THE

WATER/WASTEWATER SYSTEM ASSESSMENT DIVISION (ARTURO ACEVEDO @

301-206-8478), THE PIPELINE CONSTRUCTION DIVISION INSPECTOR, AND THE

UTILITY SERVICES DIVISION MANAGER (NADIR AL-SALAM, (301) 206- 7337).

5. THE PCCP PIPELINE MAY HAVE AN ACOUSTIC FIBER OPTIC (AFO) MONITORING

SYSTEM INSTALLED INSIDE THE PIPELINE. COORDINATION WITH THE

WATER/WASTEWATER SYSTEM ASSESSMENT DIVISION IS REQUIRED (AS

SPECIFIED IN ITEM 2) TO REMOVE THE INTERNAL AFO CABLE PRIOR TO

BEGINNING WORK. IF COORDINATION IS NOT ACCOMPLISHED, THE APPLICANT IS

RESPONSIBLE FOR ANY DAMAGE AND/OR REPLACEMENT OF THE AFO CABLE AS

RESULT OF THEIR WORK AT NO ADDITIONAL COST TO WSSC.

6. IF THE PCCP PIPELINE DOES NOT HAVE AN AFO MONITORING SYSTEM

INSTALLED, 60-DAY ADVANCE NOTIFICATION IS STILL REQUIRED TO COORDINATE

THE REMOVAL & REPLACEMENT OF ANY PCCP PIPE SECTIONS, TO DOCUMENT

THE EXTERNAL CONDITIONS, AND TO COLLECT SAMPLES OF THE PIPE SECTION

FOR FORENSIC ANALYSIS.

7. PCCP PIPELINE RECHARGE EFFORTS SHALL BE COORDINATED WITH WSSC

STAFF SPECIFIED IN ITEM 4. THE PIPELINE RECHARGE EFFORTS AND AFO CABLE

RE-INSTALLATION SHALL FOLLOW THE ADVANCE NOTIFICATION AS SPECIFIED IN

ITEM 2 AND WILL BE UNDER THE DIRECTION OF THE UTILITY SERVICES DIVISION

MANAGER (NADIR AL-SALAM, (301) 206- 7337).

8. THE APPLICANT IS RESPONSIBLE FOR ANY DAMAGE TO THE PCCP MAIN AT THE

LOCATION OF WORK EFFORT AND SHALL BE RESPONSIBLE FOR REPLACEMENT

OF ANY DAMAGED PCCP PIPE SECTIONS PER WSSC DIRECTION AT NO

ADDITIONAL COST TO WSSC WATER.

12345 001-U

LEGEND

LIMITS OF SLIGO CREEK TRAIL

REPLACEMENT/RESTORATION

TO BE PERFORMED BY

CONTRACTOR

EXISTING WATER (TO BE ABANDONED)

EXISTING WATER (TO BE REMOVED)

EXISTING SEWER

EXISTING GAS

EXISTING ELECTRIC

EXISTING OVERHEAD ELECTRIC

EXISTING TELEPHONE

EXISTING CABLE TV

EXISTING FIBER OPTIC

EXISTING STORM DRAIN

ROADWAY R/W LINE

LINE OF DIVISION

EXISTING WSSC EASEMENT

PROPOSED WSSC EASEMENT

PROPOSED CONSTRUCTION STRIP

SILT FENCE

EDGE OF TRAIL

WETLAND

WETLAND BUFFER

TEMPORARY TRAIL LINE

TREE PROTECTION FENCE/LOD

FILTER LOG

TEMPORARY WATER BY-PASS

NEW VALVE

NEW FIRE HYDRANT

NEW CURB STOP

NEW WATER METER

NEW WATER MANHOLE

EXISTING VALVE

EXISTING FIRE HYDRANT

EXISTING CURB STOP

EXISTING WATER METER

EXISTING WATER MANHOLE

EXISTING METER VAULT

EXISTING UTILITY POLE

EXISTING TREE

TEST PIT LOCATION

SOIL BORING LOCATION

PAVEMENT CORE LOCATION

SMH FROM AS-BUILT

SMH FROM WERI

TREE REMOVAL

TP-#

SB-#

PC-#

T.B.A.

T.B.R.

NEW WATER (SMALLER THAN 24")

EXISTING WATER (SMALLER THAN 24")

EXISTING WATER (24" AND LARGER)

NEW WATER (24" AND LARGER WITH

PIPE JOINTS)

LIMITS OF TEMPORARY

ACCESS ROAD

TEMPORARY SLIGO

CREEK TRAIL LIMITS

TPF TPF TPF TPF TPF

EGIN

WP001-02

T-402

WP001-03

WP001-04

WP001-WET

WP001-05

WP001-06 END

L SAMPLE PLOT

T-383 T-382

T-389 T-390

T-403

T-391

T-399

T-404

T-415

T-413

T-414

T-416

T-417

T-420

T-418

T-419

T-421

T-422

T-425

T-424 T-423

T-427

T-426

T-428 T-432

T-431

T-429 T-430

T-436

T-437

T-397

T-433 T-434

T-435

T-438

T-398

T-408

T-395

T-375

T-376

T-378

T-377

T-380

T-357

T-356

T 358

T-379

T-353

T-354

T-355

T-352

T-350

T-351

T-381

T-450

T-209

T-106

T-107 T-108

T-105

T-104

T-103

T-102

T-100

T-101

T-97

T-98

T-99

T-96

T-123

T-89

T-62

T-72

T-73

T-77

T-76 T-74

T-95

T-78

T-79

T-87 T-88

T-81

T-82 T-84

T-83

T-85

T-86

T-80

N. RED

OAK

SWAMP

WHITE

21" SILVER

MAPLE

10" RED

MAPLE

2" AMERICAN

HOLLY TREE

1" AMERICAN

HORNBEAM

2" AMERICAN

HOLLY TREE

4" RED

MAPLE

15" RED

MAPLE

10" RED

MAPLE

4" RED

MAPLE

4"-6" TWIN

RED MAPLE

WHITE

OAK

BLACK

GUM

4" RED

MAPLE

AMERICAN

SYCAMORE

BLACK

OAK

13" RED

MAPLE

14" RED

MAPLE

5" S.

RED OAK

BLACK

OAK

BLACK

OAK

5" BLACK

OAK5" BLACK

GUM

BLACK

GUM

6" RED

MAPLE

BLACK

OAK

6" RED

MAPLE

TRAV PT

WTB102

WSSC

EX. 1

8" S

D HDPE

EX. 72" W

PCCP (66-2621J)

(LOCKJOINT NO. PE-67-119)

EX. 30" W

PCCP (61-5411) (LOCKJOINT CO-62-60)

GRASS

EX. 30" W

PCCP (61-5411)

EX. 30" W

PCCP

(66-2621J)

EX. 72" W

PCCP (66-2621J)

EX. FIBER OPTICS

MARYLAND NATIONAL CAPITAL

LIBER: 02706 FOLIO: 0359

THE WARWICK APARTMENTS

1131 W. UNIVERSITY BOULEVARD

LIBER: 64043 FOLIO: 0389LINE OF DIVISION

ASPHALT

EX. 30"X24"

REDUCER

ASPHALT

GRASS

PARKING GARAGE

EX. BOTTOM

SIDE DITCH

BM 'B'

TP-02

SB-01

TP-01

PC-01

REMOVE EX. 24" VALVE AND

EX. VAULT AND REPLACE

DISTURBED SOIL WITH

STRUCTURAL BACKFILL

REMOVE

EX. 30" W

REMOVE THREE 16 L.F. SECTIONS

OF EX. 30" PCCP WATER MAIN AND

EX. 30"X30" TEE. REPLACE WITH

APPROX. 48 L.F. OF NEW 30" DIP

AND NEW 30"X30" TEE.

UNIVERSITY

ULEVARD W

(M D 193)

NEXT VALVE (V083)

APPROX. 1,215'

NEXT VALVE (V125)

APPROX. 445'

NEXT VALVE (V101)

APPROX. 5,530'

NEXT VALVE (V019)

APPROX. 3,675'

SLIG

CREEK TRAIL

SLIG

CREEK TRAIL

V127

TO TRAV W

TB101

APPROX. 300'

10'

TPF

TPF TPF

TPF

TPF TPF

TPF

TPF TPF

TPF

ENTRY PORT 'A001'

0+00

CONNECT TO EX. 30" PCCP W WITH M.J. SOLID

SLEEVE, PCCP X DIP ADAPTER, AND INSULATING

FLANGE (PER STD. DET. C/3.0 AND C/3.3), SEE

PCCP TO DIP CONNECTION DETAIL ON SHEET 6.

CONNECTION MUST BE MADE AT JOINT. PER LAY

SCHEDULE FOR AS-BUILT 61-5411, JOINT IS

LOCATED AT STA. 96+04.

0+10

INSTALL NEW 30"-132 H.B.

ROTATE UP 2°30'

INSTALL NEW

30" W D.I.P.

LIMIT OF

EXCAVATION

0+35=0+00

INSTALL NEW 30"X30" TEE

ROTATE DOWN 2°30'

REMOVE THREE 16 L.F. SECTIONS OF EX. 72"

PCCP WATER MAIN AND EX. 72"X24" OUTLET.

REPLACE WITH APPROX. 48 L.F. OF NEW 72"

STEEL PIPE AND NEW 72"X30" STEEL OUTLET.

REPLACE ANY DISTURBED SOIL WITH

STRUCTURAL FILL WHERE 72" STEEL PIPE IS

INSTALLED. SEE WSSC STD. SPEC. 02315.

0+00

CONNECT TO EX. 72" PCCP W WITH PCCP X STEEL

ADAPTER, AND INSULATING FLANGE (PER STD. DET. C/3.0),

SEE PCCP TO STEEL CONNECTION DETAIL ON SHEET 6.

CONNECTION MUST BE MADE AT JOINT. PER LAY

SCHEDULE FOR AS-BUILT 66-2621J, JOINT IS LOCATED AT

STA. 659+99.

LIMIT OF

EXCAVATION

INSTALL TREE

PROTECTION

PER STD.

DET. SC/19.0

INSTALL TREE PROTECTION

PER STD. DET. SC/19.0

N 499050

N 499235

PROPOSED LANDSCAPE TREE

TRANSPLANTING LOCATIONS

0+48

CONNECT TO EX. 30" PCCP W WITH M.J. SOLID

SLEEVE, PCCP X DIP ADAPTER, AND INSULATING

FLANGE (PER STD. DET. C/3.0 AND C/3.3), SEE

PCCP TO DIP CONNECTION DETAIL ON SHEET 6.

CONNECTION MUST BE MADE AT JOINT. PER LAY

SCHEDULE FOR AS-BUILT 61-5411, JOINT IS

LOCATED AT STA. 96+52.

0+48

CONNECT TO EX. 72" PCCP W WITH PCCP X STEEL

ADAPTER, AND INSULATING FLANGE (PER STD. DET.

C/3.0), SEE PCCP TO STEEL CONNECTION DETAIL ON

SHEET 6. CONNECTION MUST BE MADE AT JOINT. PER

LAY SCHEDULE FOR AS-BUILT 66-2621J, JOINT IS

LOCATED AT STA. 660+31.

0+32=0+39

INSTALL NEW 72"X30" STEEL

OUTLET, SEE SPECIAL

DETAIL ON SHEET 6

0+34

INSTALL NEW

INSULATED

FLANGE PER

STD. DET. C/3.0

CONTRACTOR SHALL USE

HEAVY DUTY MULCH MAT

ON MNCPPC PROPERTY

PER DETAIL ON SHEET 7

20'

0+23.8 = 30" VALVE

0+25.5 = VAULT

INSTALL NEW 30" HORIZONTAL

VALVE IN VAULT

PER STD. DETS. W/2.4 AND W/2.4a

CONTRACTOR SHALL ADD

MULCH UP TO 20' FROM

FACE OF FILTER LOGS

INSTALL FILTER LOGS

PER STD. DET. SC/20.0

SEE DETAIL ON SHEET 8

CONTRACTOR TO MAINTAIN

EX. DRAINAGE ON NORTHEAST SIDE

OF TRAIL DURING CONSTRUCTION

CONTRACTOR TO INSTALL TEMPORARY PEDESTRIAN TRAIL

USING MEDIUM DUTY MULCH MAT. SEE DETAIL ON SHEET 7

X X

CONTRACTOR SHALL REPLACE/

RESTORE SLIGO CREEK TRAIL

PER DETAIL ON SHEET 7

INSTALL TREE PROTECTION

PER STD. DET. SC/19.0

INSTALL TREE PROTECTION

PER STD. DET. SC/19.0

NEW

72-INCH STEEL

NEW

30-INCH DIP

INSTALL FILTER LOGS

PER STD. DET. SC/20.0

SEE DETAIL ON SHEET 8

REMOVE AND REPLANT

LANDSCAPE TREE

PROPOSED LANDSCAPE TREES

TRANSPLANTING LOCATIONS

REMOVE AND REPLANT

LANDSCAPE TREES

INSTALL TREE

PROTECTION

PER STD.

DET. SC/19.0

REMOVE AND REPLANT

LANDSCAPE TREE

0+32

INSTALL NEW 30"

M.J. SOLID SLEEVE

0+18

INSTALL NEW 30"

M.J. SOLID SLEEVE

0+05

INSTALL NEW 30"

M.J. SOLID SLEEVE

0+43

INSTALL NEW 30"

M.J. SOLID SLEEVE

W21-7 30"X30" ON TEMPORARY

WOOD POST PER CHAPTER

9B MD-MUTCD

WORK

AREA

AHEAD

WORK

AREA

AHEAD

W21-7 30"X30" ON TEMPORARY

WOOD POST PER CHAPTER

9B MD-MUTCD

INSTALL FILTER LOGS

PER STD. DET. SC/20.0

SEE DETAIL ON SHEET 8

ADDITIONAL TREE PROTECTION FENCE

SEE DETAIL SHEET 7

INSTALL FILTER LOGS PER STD. DET. SC/20.0

SEE DETAIL ON SHEET 8

INSTALL FILTER LOGS PER STD. DET. SC/20.0

SEE DETAIL ON SHEET 8

CONTRACTOR SHALL USE HDPE

MAT GROUND PROTECTION

OUTSIDE OF MNCPPC PROPERTY

PER DETAIL ON SHEET 7

6" TEMPORARY

WATER BY-PASS

GRAPHIC SCALE

5 1010

SCALE: 1"=10'

DATE REVISIONS

200'S OF

CONTRACT

ENGINEER:THESE DOCUMENTS CONTAIN

PRIVILEGED AND CONFIDENTIAL

INFORMATION WHICH SHALL NOT

BE REDISTRIBUTED WITHOUT

PRIOR WSSC APPROVAL VE

- B

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10/16/2024 9:15 AM - PLOT DATE

DATE

BT7370A22

214NW02

WHEATON ELECTION DISTRICT NO. 13

30" WATER VALVE AND VALVE VAULT REPLACEMENT

1200 W. UNIVERSITY BOULEVARD

SILVER SPRING, MONTGOMERY COUNTY, MARYLAND

WATER INFRASTRUCTURE SECTION

PROJECT MANAGER

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.

NAME: SHAWN T. BURNETT

LICENSE NO.: 20615

EXP. DATE: 10/21/2026

NAME: THE WILSON T. BALLARD COMPANY

ADDRESS: 17 GWYNNS MILL COURT, OWINGS MILLS, MD 21117

PHONE: (410) 363-0150

CONTACT : SHAWN BURNETT

EMAIL: SBURNETT@WTBCO.COM

SLIGO CREEK MINI DRAINAGE BASIN NOS. 064

C \P

B T7

W G s\

A2 2\

-1

.d w g

WASHINGTON SUBURBAN SANITARY COMMISSION

WSSC

HHG: 530'

LHG: 460'

PRESSURE ZONE= 495A

HHG: 670'

LHG: 598'

PRESSURE ZONE (72" W, V019) = 660A

TRAVERSE SCHEDULE

POINT NORTHING EASTING DESCRIPTION

WTB101 498945.44 1303739.68 R/C SET

WTB102 499218.64 1303630.29 R/C SET

PLAN OF 30" VALVE VAULT

SCALE: 1"=10'

- RESTRAIN ALL JOINTS AND FITTINGS BETWEEN

NEW 30"X30" TEE AND NEW 72"X30" STEEL

OUTLET

WATER STAKEOUT DATA

30" WATER REPLACEMENT

LOCATION ITEM NORTHING EASTING

0+00, 30" W CONNECT TO EX. 499138.43 1303670.84

0+35, 30" W 30"X30" TEE 499108.50 1303688.51

0+48, 30" W CONNECT TO EX. 499096.73 1303694.54

WATER STAKEOUT DATA

72" WATER REPLACEMENT

LOCATION ITEM NORTHING EASTING

0+00, 72" W CONNECT TO EX. 499155.57 1303697.94

0+32, 72" W 72"X30" OUTLET 499131.58 1303719.12

0+48, 72" W CONNECT TO EX. 499119.60 1303729.72

WATER STAKEOUT DATA

30" WATER INTERCONNECT

LOCATION ITEM NORTHING EASTING

0+00, 30" W 30"X30" TEE 499108.50 1303688.51

0+10, 30" W 30"-1/32 H.B. 499113.10 1303697.44

0+25.5, 30" W CENTER VAULT AT WATER

MAIN 499123.14 1303709.23

0+39, 30" W 72"X30" OUTLET 499131.58 1303719.12

- RESTRAIN ALL JOINTS AND FITTINGS

ALONG 30" DIP WATER MAIN REPLACEMENT

RESTORATION SCHEDULE

AREA GRADING TYPE RESTORATION

ALL AREAS I "A" OR PAVING

BM 'A'

BOX CUT CONC.

ELEV. = 345.26

BM 'B'

BOX CUT HDWL

ELEV. = 348.38

BM 'C'

BOX CUT CONC.

ELEV. = 349.28

- RESTRAIN ALL JOINTS AND FITTINGS ALONG

72" STEEL WATER MAIN REPLACEMENT

CONTRACTOR SHALL CONSTRUCT TEMPORARY

PEDESTRIAN TRAIL PRIOR TO INSTALLING

TEMPORARY WATER BY-PASS. TEMPORARY

WATER BY-PASS TO CROSS UNDER TREE

PROTECTION FENCE AND OVER FILTER LOGS.

0+200+00

PROFILE OF 30" W

SCALE: 1"=5' HORZ.

1"=5' VERT.

325 325

330 330

335 335

340 340

345 345

350 350

355 355

0+40 0+60

0+00

CONNECT TO EX. 30" PCCP W

SEE DETAIL ON SHEET 6.

INV.= 337.9

(AS-BUILT)

0+35=0+00

30"X30" TEE

ROTATE DOWN 2°30'

INV.= 337.6

0+48

CONNECT TO EX. 30" PCCP W

SEE DETAIL ON SHEET 6.

INV.= 337.5

(AS-BUILT)

NEW 30" W DIPEX. 30" W PCCP

(61-5411) EX. 30" W PCCP

(61-5411)

EX. GRADE

0+200+00

PROFILE OF 30" W INTERCONNECT

SCALE: 1"=5' HORZ.

1"=5' VERT.

335 335

340 340

345 345

350 350

355 355

0+40

NEW 30" W DIP

EX. GRADE

0+00=0+35

30"X30" TEE

ROTATE DOWN 2°30'

INV.= 337.6

0+10 30"-132 H.B.

ROTATE UP 2°30'

INV.= 337.2 0+25.5

VALVE

VAULT

FLOOR

ELEV.= 334.7

0+34

INSULATING

FLANGE

INV.= 337.2

0+39=0+32

72"X30" STEEL

OUTLET

INV.= 335.4 (72" W)0+23.8

30" HORIZONTAL VALVE

INV.= 337.2

RESTRAIN ALL JOINTS AND FITTINGS

0+200+00

PROFILE OF 72" W

SCALE: 1"=5' HORZ.

1"=5' VERT.

0+40 0+60

340 340

345 345

350 350

355 355

EX. GRADE

EX. 72" W PCCP

(66-2621J)

NEW 72" W STEEL

EX. 72" W PCCP

(66-2621J)

0+00

CONNECT TO EX. 72" PCCP W

SEE DETAIL ON SHEET 6.

INV.= 335.5

(AS-BUILT)

0+32=0+39

72"X30" OUTLET

INV.= 335.4 (72" W)

0+48

CONNECT TO EX. 72" PCCP W

SEE DETAIL ON SHEET 6.

INV.= 335.4

(AS-BUILT)

0+20 335.5

0+40 335.4

RESTRAIN ALL JOINTS AND FITTINGS

GRASS

0+20 337.7

0+40 337.5

V V-1

8.0%

EX. GRD

SLIGO CREEK TRAIL GRASS

RESTRAIN ALL JOINTS AND FITTINGS

SLIGO CREEK TRAIL GRASS

0+02

INSULATING FLANGE

INV.= 337.9 0+46

INSULATING FLANGE

INV.= 337.5

0+02

INSULATING FLANGE

INV.= 335.5

0+46

INSULATING FLANGE

INV.= 335.4

0+43

30" M.J. SOLID SLEEVE

INV.=337.5

0+05

30" M.J. SOLID SLEEVE

INV.= 337.8

0+18 30" M.J.

SOLID SLEEVE

INV.=337.2

0+32

30" M.J. SOLID SLEEVE

INV.=337.2

DATE REVISIONS

200'S OF

CONTRACT

ENGINEER:THESE DOCUMENTS CONTAIN

PRIVILEGED AND CONFIDENTIAL

INFORMATION WHICH SHALL NOT

BE REDISTRIBUTED WITHOUT

PRIOR WSSC APPROVAL VE

- B

N E

H O

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10/16/2024 9:16 AM - PLOT DATE

DATE

BT7370A22

214NW02

WHEATON ELECTION DISTRICT NO. 13

30" WATER VALVE AND VALVE VAULT REPLACEMENT

1200 W. UNIVERSITY BOULEVARD

SILVER SPRING, MONTGOMERY COUNTY, MARYLAND

WATER INFRASTRUCTURE SECTION

PROJECT MANAGER

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.

NAME: SHAWN T. BURNETT

LICENSE NO.: 20615

EXP. DATE: 10/21/2026

NAME: THE WILSON T. BALLARD COMPANY

ADDRESS: 17 GWYNNS MILL COURT, OWINGS MILLS, MD 21117

PHONE: (410) 363-0150

CONTACT : SHAWN BURNETT

EMAIL: SBURNETT@WTBCO.COM

SLIGO CREEK MINI DRAINAGE BASIN NOS. 064

C \P

B T7

W G s\

A2 2\

-2

.d w g

WASHINGTON SUBURBAN SANITARY COMMISSION

WSSC

HHG: 530'

LHG: 460'

PRESSURE ZONE= 495A

HHG: 670'

LHG: 598'

PRESSURE ZONE (72" W, V019) = 660A

WP001-01 BEGIN WP001-02

T-402

WP001-03

WP001-04

WP001-WET

WP001-05

WP001-06 END

WP001-UPL SAMPLE PLOT

T-383 T-382

T-384

T-385

T-386

T-387

T-388

T-389

T-390

T-403

T-391

T-399

T-404

T-415

T-413

T-414

T-416

T-417

T-405

T-420 T-418

T-419

T-421

T-422

T-425

T-424 T-423 T-406

T-427

T-426

T-428 T-432

T-431

T-429 T-430

T-436

T-437 T-407

T-397

T-433 T-434

T-435

T-438 T-398

T-439 T-400

T-396

T-408

T-395

T-445

T-444 T-443

T-446 T-447

T-441

T-440

T-442

T-449

T-448

T-409

T-411

T-410

T-365 T-366

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T-369

T-373

T-374 T-371 T-370

T-372

T-364 T-361 T-368

T-362

T-330

T-375 T-376

T-378

T-377

T-380

T-357 T-356

T-359

T-358

T-379

T-353

T-354 T-355

T-352

T-350 T-351

T-360

T-347

T-346

T-349

T-381

T-348

T-363

T-343

T-336

T-344

T-341

T-337 T-342

T-340

T-338 T-339

T-335 T-333 T-334

T-332 T-331

T-450

T-209

T-108

T-106

T-107

T-105

T-104

T-103

T-102

T-100

T-101

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T-94

T-93

T-95

T-114 T-111

T-115

T-117

T-116

T-118

T-113 T-112

T-110

T-109

T-122

T-121

T-120

T-119 T-123

T-89

T-90

T-91

T-92

T-304

T-412

T-60

T-401

T-305 T-301

T-302

T-303

T-61

T-62

T-73

T-72

T-67

T-68 T-82

T-66 T-64

T-63 T-71

T-65

T-76 T-74 T-77

T-75

T-79

T-78

T-87 T-88

T-80

T-81 T-84

T-86 T-85

T-83

TPF

SCE

TPF

UNIVERSITY BO

ULEVARD W

D 193)

SLIG

CREEK TRAIL

SLIG

CREEK TRAIL

V127

10'

UNIVERSITY BOULEVARD (MD 193) WB

PROP.

TP-02

PROP.

SB-01

PROP.

TP-01

PROP.

PC-01

TRAV

WTB102

TRAV

WTB101

12"

WSSC

COMCAST

10"

VERIZON

PEPCO 791438-210200

PEPCO NO NUMBER

WSSC

EX. 8

" S

EX. 12" SD RCP

EX. 24" SD CMP

EX. 72" W

PCCP

(66-2621J)

EX. 30" W

PCCP

(61-5411)

GRASS

EX. 30" W

PCCP

(61-5411)

EX. 30" W

PCCP

(66-2621J)

EX. 72" W

PCCP

(66-2621J)

EX. FIBER OPTICS

MARYLAND NATIONAL CAPITAL

LIBER: 02706 FOLIO: 0359

THE WARWICK APARTMENTS

1131 W. UNIVERSITY BOULEVARD

LIBER: 64043 FOLIO: 0389

O F

LINE OF DIVISION

LIN

E O

F D

IVISIO

ASPHALT

EX. 30"X24"

REDUCER

ASPHALT

EX. SHA R/W LINE

EX. 1

8" S

HDPE

ASPHALT PARKING LOT

PARKING GARAGE

GRASS

EX.

BOTTOM

SIDE

DITCH

ASPHALT

UNIVERSITY BOULEVARD (MD 193) EB

REMOVE AND TRANSPLANT

2" AMERICAN HOLLY TREE

REMOVE AND TRANSPLANT

1" AMERICAN HORNBEAM TREE

REMOVE AND TRANSPLANT

2" AMERICAN HOLLY TREE

ACCESS ROAD FOR

ARW

ICK APARTMENTS

(PRIVATE)

364 T-361

TTTTT-3-3-3-3- 30

T-3-3-3-3-333333333 T-3344444

T-332

T-117

T-116

WORK

AREA

AHEAD

WWPWWW 001-01 BEGIN WP001-02

WP001-0333

WP000111-11 04

WPPPP00000000001 WET

T-4T

WORK

AREA

AHEAD

X X

PROPOSED LANDSCAPE

TREES TRANSPLANTING

LOCATIONS

PROPOSED LANDSCAPE

TREES TRANSPLANTING

LOCATIONS

INSTALL FILTER LOGS PER STD. DET.

SC/20.0 SEE DETAIL ON SHEET 8

W21-7 30"X30" ON TEMPORARY

WOOD POST PER CHAPTER

9B MD-MUTCD

W21-7 30"X30"

ON TEMPORARY

WOOD POST PER

CHAPTER

9B MD-MUTCD

CONTRACTOR SHALL USE MEDIUM

DUTY MULCH MAT TO INSTALL

TEMPORARY PEDESTRIAN TRAIL

SEE DETAIL ON SHEET 7

CONTRACTOR SHALL USE HEAVY DUTY

MULCH MAT ON MNCPPC PROPERTY

PER DETAIL ON SHEET 7

CONTRACTOR SHALL USE HDPE

MAT GROUND PROTECTION

OUTSIDE OF MNCPPC PROPERTY

PER DETAIL ON SHEET 7

INSTALL STABILIZED

CONSTRUCTION ENTRANCE

PER STD. DET. SC/7.0.

SEE DETAIL ON SHEET 8

N 499025

N 499225

6" TEMPORARY

WATER BY-PASS

12345 001-U

LEGEND

LIMITS OF TRAIL

REPLACEMENT/RESTORATION

TO BE PERFORMED BY

CONTRACTOR

EXISTING WATER (TO BE ABANDONED)

EXISTING WATER (TO BE REMOVED)

EXISTING SEWER

EXISTING GAS

EXISTING ELECTRIC

EXISTING OVERHEAD ELECTRIC

EXISTING TELEPHONE

EXISTING CABLE TV

EXISTING FIBER OPTIC

EXISTING STORM DRAIN

ROADWAY R/W LINE

LINE OF DIVISION

EXISTING WSSC EASEMENT

PROPOSED WSSC EASEMENT

PROPOSED CONSTRUCTION STRIP

SILT FENCE

EDGE OF TRAIL

WETLANDS

WETLAND BUFFER

TEMPORARY TRAIL LINE

TREE PROTECTION FENCE/LOD

FILTER LOG

TEMPORARY WATER BY-PASS

TREE REMOVAL

NEW VALVE

NEW FIRE HYDRANT

NEW CURB STOP

NEW WATER METER

NEW WATER MANHOLE

EXISTING VALVE

EXISTING FIRE HYDRANT

EXISTING CURB STOP

EXISTING WATER METER

EXISTING WATER MANHOLE

EXISTING METER VAULT

EXISTING UTILITY POLE

EXISTING TREE

TEST PIT LOCATION

SOIL BORING LOCATION

PAVEMENT CORE LOCATION

SMH FROM AS-BUILT

SMH FROM WERI

TP-#

SB-#

PC-#

T.B.A.

T.B.R.

NEW WATER (SMALLER THAN 24")

EXISTING WATER (SMALLER THAN 24")

EXISTING WATER (24" AND LARGER)

NEW WATER (24" AND LARGER WITH

PIPE JOINTS)

LIMITS OF TEMPORARY

ACCESS ROAD

TEMPORARY TRAIL LIMITS

TPF TPF TPF TPF TPF

INSTALL TREE PROTECTION

PER STD. DET. SC/19.0

GRAPHIC SCALE

SCALE : 1"=20'

20 10 20

DATE REVISIONS

200'S OF

CONTRACT

ENGINEER:THESE DOCUMENTS CONTAIN

PRIVILEGED AND CONFIDENTIAL

INFORMATION WHICH SHALL NOT

BE REDISTRIBUTED WITHOUT

PRIOR WSSC APPROVAL VE

- B

N E

H O

N O

D R

N O

T O

N E

H O

N T

S H

T, A D

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A C

C O

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10/16/2024 9:16 AM - PLOT DATE

DATE

BT7370A22

214NW02

WHEATON ELECTION DISTRICT NO. 13

30" WATER VALVE AND VALVE VAULT REPLACEMENT

1200 W. UNIVERSITY BOULEVARD

SILVER SPRING, MONTGOMERY COUNTY, MARYLAND

WATER INFRASTRUCTURE SECTION

PROJECT MANAGER

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.

NAME: SHAWN T. BURNETT

LICENSE NO.: 20615

EXP. DATE: 10/21/2026

NAME: THE WILSON T. BALLARD COMPANY

ADDRESS: 17 GWYNNS MILL COURT, OWINGS MILLS, MD 21117

PHONE: (410) 363-0150

CONTACT : SHAWN BURNETT

EMAIL: SBURNETT@WTBCO.COM

SLIGO CREEK MINI DRAINAGE BASIN NOS. 064

C \P

B T7

W G s\

A2 2\

-1

.d w g

WASHINGTON SUBURBAN SANITARY COMMISSION

WSSC

HHG: 530'

LHG: 460'

PRESSURE ZONE= 495A

HHG: 670'

LHG: 598'

PRESSURE ZONE (72" W, V019) = 660A ACCESS PLAN OF 30" VALVE VAULT

SCALE: 1"=20'

MITIGATION FOR MNCPPC PROPERTY

1. ALL TREES REMOVED WILL BE REPLACED AT 1:1 (ONE INCH TO ONE INCH DIAMETER

BREAST HEIGHT) RATIO (TOTAL 79 INCHES) PREFERABLY AT THE LOCATIONS AS CLOSE

AS POSSIBLE TO WHERE THEY WERE REMOVED, OR WHERE THE EXISTING PIPE AND

VALVE VAULT ARE TO BE TAKEN OUT OF SERVICE. SEE TREE REMOVAL LIST AND

PLANTING SCHEDULE. REQUIRED TREE PLANTING THAT CANNOT TAKE PLACE ON-SITE

DUE TO PROXIMITY TO WSSC WATER FACILITIES WILL TAKE PLACE OUTSIDE THE

PROJECT AREA IN THE VICINITY OF THE PROJECT AT LOCATIONS TO BE IDENTIFIED BY

MONTGOMERY PARKS STAFF.

2. LANDSCAPE TREES WILL NEED TO BE PLANTED/REPLANTED DURING MNCPPC

PRESCRIBED PLANTING TIME FRAME (OCTOBER TO APRIL). CONTRACTOR TO

COORDINATE WITH MONTGOMERY COUNTY PARK STAFF TO DETERMINE IF LANDSCAPE

TREES CAN BE SALVAGED.

3. RESEEDING DISTURBED AREAS WITHIN PARK WITH MNCPPC APPROVED SEED MIXES.

AREAS THAT ARE NOT TURF GRASS SHOULD BE SEEDED WITH THE RIPARIAN SEED

MIXES ON SHEET 8.

4. FULL DEPTH SLIGO CREEK TRAIL REPLACEMENT ALONG ENTIRE LENGTH OF DISTURBED

AREA PER PARKS STANDARD DETAIL TO BE IN PLACE THE MINIMUM TIME NEEDED AND

MUST BE MAINTAINED IN A SAFE MANNER.

5. SILT FENCE INSTALLATION.

6. MULCH MAT (HEAVY DUTY) TEMPORARY ACCESS ROAD WITHIN PARK PROPERTY. SEE

DETAIL ON SHEET 7.

7. TEMPORARY TRAIL INSTALLATION TO MAINTAIN TRAIL ACCESS FOR USERS PER MULCH

MAT (MEDIUM DUTY). SEE DETAIL ON SHEET 7.

8. TREE PROTECTION FENCE INSTALLATION AS NOTED, USING SC 19.0 FOR INDIVIDUAL

TREES.

9. TEMPORARY WATER LINE WILL BE HAND INSTALLED TO CROSS UNDER TREE

PROTECTION FENCING AND OVER FILTER LOGS.

10. PARKING OF VEHICLES, STAGING EQUIPMENT, AND/OR STORING SUPPLIES OUTSIDE LOD

WILL NOT BE ALLOWED. THESE ACTIONS DURING CONSTRUCTION WILL RESULT IN

ADDITIONAL SITE RESTORATION AND MITIGATION.

11. LOD FENCE AROUND PERIMETER WILL BE MONTGOMERY COUNTY PARKS APPROVED

TPF (TREE PROTECTION FENCE). SEE DETAIL ON SHEET 7.

12. PROJECT CONSTRUCTION IS PLANNED TO BEGIN SUMMER 2025 WITH COMPLETION

ANTICIPATED FALL 2025.

PARK TREES TO BE REMOVED

COMMON NAME DBH (INCHES)

SILVER MAPLE 21

RED MAPLE 10

RED MAPLE 4

TWIN RED MAPLE 4,6

RED MAPLE 15

WHITE OAK 5

RED MAPLE 4

BLACK GUM 6

TOTAL DBH (INCHES) 79

PLANTING SCHEDULE FOR

TREE REPLACEMENT

(ASSUMING 2-INCH REPLACEMENT TREES ARE PLANTED)

SPECIES NUMBER

AMERICAN SYCAMORE 8

SWAMP WHITE OAK 8

RIVER BIRCH 8

REDBUD 8

CARPINUS 8

TOTAL 40

CONTRACTOR SHALL CONSTRUCT TEMPORARY

PEDESTRIAN TRAIL PRIOR TO INSTALLING

TEMPORARY WATER BY-PASS. TEMPORARY

WATER BY-PASS TO CROSS UNDER TREE

PROTECTION FENCE AND OVER FILTER LOGS.

72"X30" STEEL OUTLET DETAIL

N.T.S.

30" DIP WATER MAIN

30" INSULATED

FLANGE JOINT

30" STEEL

FLANGED END

72" STEEL WATER MAIN

30" STEEL

OUTLET

30" DIP

(PE X FLG)

DATE REVISIONS

200'S OF

CONTRACT

ENGINEER:THESE DOCUMENTS CONTAIN

PRIVILEGED AND CONFIDENTIAL

INFORMATION WHICH SHALL NOT

BE REDISTRIBUTED WITHOUT

PRIOR WSSC APPROVAL VE

- B

N E

H O

N O

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C O

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10/16/2024 9:17 AM - PLOT DATE

DATE

BT7370A22

214NW02

WHEATON ELECTION DISTRICT NO. 13

30" WATER VALVE AND VALVE VAULT REPLACEMENT

1200 W. UNIVERSITY BOULEVARD

SILVER SPRING, MONTGOMERY COUNTY, MARYLAND

WATER INFRASTRUCTURE SECTION

PROJECT MANAGER

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.

NAME: SHAWN T. BURNETT

LICENSE NO.: 20615

EXP. DATE: 10/21/2026

NAME: THE WILSON T. BALLARD COMPANY

ADDRESS: 17 GWYNNS MILL COURT, OWINGS MILLS, MD 21117

PHONE: (410) 363-0150

CONTACT : SHAWN BURNETT

EMAIL: SBURNETT@WTBCO.COM

SLIGO CREEK MINI DRAINAGE BASIN NOS. 064

C \P

B T7

W G s\

A2 2\

-5

.d w g

WASHINGTON SUBURBAN SANITARY COMMISSION

WSSC

HHG: 530'

LHG: 460'

PRESSURE ZONE= 495A

HHG: 670'

LHG: 598'

PRESSURE ZONE (72" W, V019) = 660A

NOTES:

1. FIELD VERIFY EXISTING END CONDITIONS AT CONNECTING POINT AND

PROVIDE APPROPRIATE PCCP TO DIP ADAPTER.

2. JOINT BETWEEN PCCP AND DIP X PCCP ADAPTER SHALL BE

MORTAR-COATED AFTER ASSEMBLY (FOR NEW DIP BOND PIPE).

3. SEE DETAILS C/3.0 AND C/3.3 FOR INSULATING FLANGE JOINT.

NEW 30" M.J. SOLID SLEEVE

(LONG TYPE), SEE STD.

DETAIL W/11.0

NEW 30" M.J.

SOLID SLEEVE

(LONG TYPE), SEE

STD. DETAIL

W/11.0NEW 30"X30" TEE

(PUSH-ON x PUSH-ON)

EXISTING 30" PCCP

CONNECT TO EX. PCCP BELL END

(CONNECTION MUST BE MADE AT

EXISTING PIPE JOINT)

NEW 30" PCCP X DIP ADAPTER

(PCCP SPIGOT X DIP FLANGE)

NEW 30" DIP

(PE x PE)

NEW 30" DIP

(PE x PE)

NEW 30" PCCP X DIP…

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File details come from the government source that posted it. Updated Jun 25, 2026.