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WATER and SEWER
MONTGOMERY COUNTY, VIRGINIA
Second Edition
September 2007
WATER and SEWER
DESIGN & CONSTRUCTION
STANDARDS MONTGOMERY COUNTY PUBLIC SERVICE AUTHORITY
WATER AND SEWER DESIGN & CONSTRUCTION STANDARDS
SECOND EDITION
SEPTEMBER 2007
TABLE OF CONTENTS
ADMINISTRATIVE
WATER / SEWER AVAILABILITY APPLICATION
SIZING WATER SERVICE LINES AND METERS
WATER METER FIXTURE VALUE CHART
NON-RESIDENTIAL SANITARY SEWER CHECKLIST
PLAN SUBMITTAL CHECKLIST
REQUEST FOR WAIVER, MODIFICATION, OR FIELD CHANGE FORM
INSPECTION REQUIREMENTS
ACCEPTANCE OF WATER / SEWER FACILITIES PROCEDURES
TYPICAL WATER OR SEWER MAIN LOCATION WITHIN VDOT RIGHT-OF-
WAYS

WATER/SEWER STANDARDS
DESIGN AND CONSTRUCTION STANDARDS FOR WATER FACILITIES -
Section 100.00
DESIGN AND CONSTRUCTION STANDARDS FOR SANITARY SEWER
FACILITIES - Section 200.00
SPECIFICATIONS
SPECIFICATION SECTION 02110 CLEARING AND GRUBBING
SPECIFICATION SECTION 02230 ROCK EXCAVATION
SPECIFICATION SECTION 02270 EROSION AND SEDIMENT CONTROL
SPECIFICATION SECTION 02310 STREAM AND/OR HIGHWAY CROSSINGS
SPECIFICATION SECTION 02665 WATER DISTRIBUTION LINES
SPECIFICATION SECTION 02670 INSTALLATION OF WATER LINES AND
SANITARY SEWER LINES BY HORIZONTAL DIRECTIONAL DRILLING (HDD)
METHOD
SPECIFICATION SECTION 02731 SANITARY SEWER COLLECTOR LINES
AND FORCE MAIN
SPECIFICATION SECTION 02900 SEEDING AND MULCHING
WATER/SEWER DETAIL DRAWINGS
WATER DETAIL DRAWINGS
SEWER DETAIL DRAWINGS MONTGOMERY COUNTY PUBLIC SERVICE AUTHORITY
WATER AND SEWER DESIGN & COSTRUCTION STANDARDS
SECOND EDITION
SEPTEMBER 2007
SECTION ONE - ADMINISTRATIVE
WATER / SEWER AVAILABILITY APPLICATION (1 page)
SIZING WATER SERVICE LINES AND METERS (1 page)
WATER METER FIXTURE VALUE CHART (1 page)
NON-RESIDENTIAL SANITARY SEWER CHECKLIST (7 pages)
PLAN SUBMITTAL CHECKLIST (1 page)
REQUEST FOR WAIVER, MODIFICATION, OR FIELD CHANGE FORM (1 page)
INSPECTION REQUIREMENTS (1 page)
ACCEPTANCE OF WATER / SEWER FACILITIES PROCEDURES (2 pages)
TYPICAL WATER OR SEWER MAIN LOCATION WITHIN VDOT RIGHT-OF-
WAYS

(1 page) Montgomery County Public Service Authority
Water/Sewer Availability Application
Date:




Applicant:



















Mailing Address:


































Phone:














Cell:















Fax:















Property Address:
















Tax Map Number(s):
















Development (Subdivision) Name:












Single Residential, Duplex, Multi-Residential, Mobile Home Park, Subdivision, or Commercial
Facility?












Water Meter Size Requested:









Sewer Lateral Size Requested:










Return to Robert Fronk; Phone: (540)381-1997; Fax: (540)382-5703
Postal Mail: 755 Roanoke Street, Suite 2-I, Christiansburg, VA 24073
fronkrc@montgomerycountyva.gov
COMPLETE THE FOLLOWING FOR
NON-RESIDENTIAL AND MULTI-RESIDENTIAL SERVICES
Domestic Flow Required?**




GPM
** (Attach completed Sizing Water Service Lines and Meters Form AND Non-Residential
Sanitary Sewer Checklist, blank forms available on website under Engineers section.)
Is Building to be Sprinkled? Yes


No
Minimum Fire Flow Required?



GPM MONTGOMERY COUNTY PUBLIC SERVICE AUTHORITY
SIZING WATER SERVICE LINES AND METERS
DEVELOPMENT NAME:
TYPE OF OCCUPANCY:
Plumbing Fixture Type
Fixture Value
Bathtub
X
8
=
Bedpan Washer
X
10
=
Combination Sink & Tray
X
3
=
Dental Unit
X
1
=
Dental Lavatory
X
2
=
Drinking Fountain - Cooler
X
1
=
Drinking Fountain - Public
X
2
=
Sink - 1/2" Connection
X
3
=
Sink - 3/4" Connection
X
7
=
Lavatory - 3/8" Connection
X
2
=
Lavatory - 1/2" Connection
X
4
=
Laundry Tray - 1/2" Connection
X
3
=
Laundry Tray - 3/4" Connection
X
7
=
Shower Head
X
4
=
X
35
=
Urinal - Wall Flush Valve
X
12
=
Urinal - Trough (2 Foot Unit)
X
2
=
X
4
=
Water Closet - Flush Valve
X
35
=
Water Closet - Tank Type
X
3
=
Dishwater - 1/2" Connection
X
5
=
Dishwater - 3/4" Connection
X
10
=
Washing Machine - 1/2" Connection
X
5
=
Washing Machine - 3/4" Connection
X
12
=
Washing Machine - 1" Connection
X
25
=
Hose Connection (Wash Down) - 1/2"
X
6
=
Hose Connection (Wash Down) - 3/4"
X
10
=
Hose (50 foot -Wash Down) - 1/2"
X
6
=
Hose (50 foot -Wash Down) - 5/8"
X
9
=
Hose (50 foot -Wash Down) - 3/4"
X
12
=
COMBINED FIXTURE VALUE TOTAL
Number of
Fixtures
Fixture Value
@ 35 PSI
Urinal - Pedistal Flush Valve
Wask Sink (Each Set of Faucets) Water Meter Fixture Value Chart
Residential Uses
Meter Sizes
Fixture Values (max.)
5/8"
20
100
1"
50
600
1 1/2"
100
7,000
2"
160
*
3"
300
*
4"
500
*
6"
1,000
*
Commercial Uses
Meter Sizes
Fixture Values (max.)
5/8"
20
50
1"
50
200
1 1/2"
100
600
2"
160
6,000
3"
300
*
4"
500
*
6"
1,000
*
Max. Cap. (gpm)
* For fixture values greater than 7,000, capacity of meter shall be 100 gpm +
1 gpm for each 160 fixture values over 7,000.
Max. Cap. (gpm)
* For fixture values greater than 6,000, capacity of meter shall be 175 gpm +
1 gpm for each 160 fixture values over 6,000. MONTGOMERY COUNTY PUBLIC SERVICE AUTHORITY
NON-RESIDENTIAL SANITARY SEWER CHECKLIST
Montgomery County is tasked by USEPA, VA DEQ, and local pretreatment agreements
to evaluate all non-residential sanitary sewer users to determine the category of the user and to
insure compliance with all applicable laws and regulations. This evaluation requires a thorough
review of the type of business, building layout, plumbing configuration, processes performed,
equipment utilized, chemicals used, chemicals stored, and expected discharges to the public
sanitary sewer. Completion of the Montgomery County PSA Non-Residential Sanitary Sewer
Checklist with requested attachments is the initial step of this evaluation.
If this evaluation determines that the facility is an industrial type user, large quantity
discharges, or of significant potential, a wastewater discharge permit will be issued. Other
responses include the facility collecting and analyzing a wastewater sample and site inspection.
All submitted documentation will be filed for reference. If a wastewater analysis is required, the
received results would be compared to the Montgomery County discharge limits, and if in
compliance, would be placed on file for reference as conclusion to the evaluation process.
Montgomery County PSA will assist in completion of this form and to identify items of
concern. All efforts should be made to prevent unsuitable materials from entering the sewer.
Proper housekeeping operations can eliminate most of the sewer discharge violations.
Significant items of concern:
- Sampling structures are required for all non-residential facilities.
- All food preparation operations require a properly sized grease trap. Montgomery County,
through experience, recommends that the trap be sized for 30 minutes of detention during peak
flows. A copy of the cleaning schedule will also be required. It is highly recommended that the
trap be placed outside the building so that a septic tank hauler can be used to clean/empty the
trap.
- Floor drains should be restricted to bathrooms. Floor drains, in other areas, present a potential
route for accidental spills to enter the sanitary sewer. If floor drains are needed outside of
bathrooms, a spill prevention plan is required, all stored liquids of concern in the area must be
placed within secondary containment devices, all equipment must have means to prevent
lubricants or produc