Northumberland County Drainfield Drawings_Addendum_2.pdf

PDF 8 MB Posted Jan 16, 2024

Attached to: High/Middle School Sanitary Treatment Modification Project
Solicitation number: 48773
Issued by: Northumberland County, Virginia

About this file

Written by GovTribe AI · Apr 2, 2024

The document contains drawings and specifications for the High/Middle School Sanitary Treatment Modification Project, a state and local contract opportunity in Northumberland County, Virginia. The project involves furnishing and installing five 9,000 gallon precast concrete septic tank structures, submersible pumps, precast valve vaults, two flow meters, a modulating control valve, approximately 2,500 LF of 2-inch HDPE force main, associated electrical and controls, and a 2,500 LF fiber optic network spanning two locations - the High/Middle School and the Elementary School. The project includes flow control, level monitoring, and data logging capabilities integrated through a control panel system.

The project does not provide specific pricing terms, set-asides, incumbent information, or funding sources. However, it notes the project is exempt from further water quality impact assessment under the Chesapeake Bay Preservation Act as a public utility project, provided all erosion and sediment control permit terms are followed.

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Other files

File	Type	Posted
NHMS Sanitary Treatment Modifications_Drawings.pdf	PDF	Jan 16, 2024
Northumberland County Drainfield Addendum No.2.pdf	PDF	Jan 16, 2024
Northumberland County Drainfield Addendum No.3.pdf	PDF	Jan 16, 2024
PREBID SIGN IN SHEET treatment mod project schools.pdf	PDF	Jan 16, 2024
Addendum 1.pdf	PDF	Jan 16, 2024
Project Manual_HighMiddleSchool_Sanitary_Treatment_Mods_rev2.pdf	PDF	Jan 16, 2024
advertisement.pdf	PDF	Jan 16, 2024

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P O T O M A C R I V E R

R A P P A H A N N O C K

R I V E R

GREAT

YEOCOMICO

RIVER

WICOMICO

RIVER

NOMINI

CREEK

W E S T M O R E L A N D C O .

N O R T H U M B E R L A N D C O .

R I C H M O N D C O .

ESSEX CO .

L A N C A S T E R C O .

MISKIMON

HEATHSVILLE

BURGESS

FARNHAM

RINSALE

HAGUE

MT HOLLY

WARSAW

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PROJECT NO:

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NORTHUMBERLAND HIGH & MIDDLE SCHOOLS

SANITARY TREATMENT MODIFICATIONS

NORTHUMBERLAND COUNTY

HEATHSVILLE, VIRGINIA

PROJECT VICINITY MAP

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PROJECT LOCATION MAP

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COVER SHEET

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S T R E A M

INDEX OF DRAWINGS

G-001 COVER SHEET

C-101 OVERALL SITE LAYOUT

C-102 E&S

C-103 E&S DETAILS

D-001 PROCESS FLOW DIAGRAM

D-002 GENERAL NOTES

D-101 SEPTIC TANK AND PUMP STATION PLAN

D-102 EQUALIZATION TANK SYSTEM PLAN AND SECTION

D-301 SEPTIC TANK AND PUMP STATION SECTIONS

D-501 DETAILS

E-001 ELECTRICAL NOTES

E-101 ELECTRICAL SITE PLAN

E-601 SINGLE LINE

E-602 CONTROL SCHEMATIC

E-603 I O SUMMARY/

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OVERALL SITE

LAYOUT

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0 200' 400'

NEW 2" HDPE

FORCEMAIN

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SF PS

SILT FENCE PER VESCH STD. & SPEC 3.05

CONSTRUCTION ENTRANCE PER VESCH STD. & SPEC

3.02

PERMANENT SEEDING PER VESCH STD. & SPEC. 3.32

(NOTE: ALL DISTURBED AREAS TO RECEIVE

PERMANENT SEEDING)

MULCHING PER VESCH STD. & SPEC 3.35

SFSF

EROSION AND SEDIMENT

CONTROL LEGENDSF

SCHOOL SEPTIC TANKS

AND EQUALIZATION PUMP

STATION LIMIT OF

DISTURBNCE 6,000 SF

NEW EQ TANK CONNECTED

TO EXSTING DRAINFIELD

PUMP STATION. LIMIT OF

DISTURBNCE 4,000 SF

2,500 LF OF SDR11.5 IPS HDPE (500' COILS) WITH

ELECTROFUSION COUPLINGS AND FITTINGS BURIED

24" DEEP. LIMITS OF DISTURBANCE 12,500 SF.

2" FORCE MAIN INSTALLED 24" DEEP VIA DITCH

WITCH TRENCHING MACHINE. CONSTRUCTION

CORRIDOR 5' WIDE PROVIDE SAME DAY MULCHING

STABILIZATION AND ALL SPOIL MATERIAL TEMP.

STOCKPILED ON UPSLOPE SIDE OF TRENCH.

LIMIT CLEARING WIDTH TO MIN. REQUIRED

FOR DITCH WITCH TRENCHING MACHINE

ACCESS (5' WIDTH). APPLY SILT FENCE EVERY

10' ON STEEP SLOPES ACROSS DISTURBED

AREAS AFTER SEEDING AND MULCHING.

STD & SPEC 3.05 - SILT FENCE

DEFINITION:

A TEMPORARY SEDIMENT BARRIER CONSISTING OF A SYNTHETIC FILTER FABRIC STRETCHED ACROSS AND ATTACHED TO SUPPORTING POSTS AND

ENTRENCHED.

CONDITIONS WHERE PRACTICE APPLIES:

1. BELOW DISTURBED AREAS WHERE EROSION WOULD OCCUR IN THE FORM OF SHEET AND RILL EROSION.

2. WHERE THE SIZE OF THE DRAINAGE AREA IS NO MORE THAN ONE QUARTER ACRE PER 100 FEET OF SILT FENCE LENGTH; THE MAXIMUM SLOPE LENGTH BEHIND THE BARRIER IS 100 FEET; AND THE MAXIMUM GRADIENT BEHIND THE BARRIER IS 50 PERCENT (2:1).

3. IN MINOR SWALES OR DITCH LINES WHERE THE MAXIMUM CONTRIBUTING DRAINAGE AREA IS NO GREATER THAN 1 ACRE AND FLOW IS NO

GREATER THAN 1 CFS.

4. SILT FENCE WILL NOT BE USED IN AREAS WHERE ROCK OR SOME OTHER HARD SURFACE PREVENTS THE FULL AND UNIFORM DEPTH

ANCHORING OF THE BARRIER.

PLANNING CONSIDERATIONS:

LABORATORY WORK AT THE VIRGINIA HIGHWAY AND TRANSPORTATION RESEARCH COUNCIL (VHTRC) HAS SHOWN THAT SILT FENCES CAN TRAP A MUCH HIGHER PERCENTAGE OF SUSPENDED SEDIMENTS THAN STRAW BALES, THOUGH SILT FENCE PASSES THE SEDIMENT-LADEN WATER SLOWER. SILT FENCES ARE PREFERABLE TO STRAW BARRIERS IN MANY CASES BECAUSE OF THEIR DURABILITY AND POTENTIAL COST SAVINGS.

WHILE THE FAILURE RATE OF SILT FENCES IS LOWER THAN THAT OF STRAW BARRIERS, MANY INSTANCES HAVE BEEN OBSERVED WHERE SILT FENCES ARE IMPROPERLY INSTALLED, INVITING FAILURE AND SEDIMENT LOSS. THE INSTALLATION METHODS OUTLINED HERE CAN IMPROVE

PERFORMANCE AND REDUCE FAILURES.

AS NOTED, FLOW RATE THROUGH SILT FENCE IS SIGNIFICANTLY LOWER THAN THE FLOW RATE FOR STRAW BALE BARRIERS. THIS CREATES MORE PONDING AND HENCE MORE TIME FOR SEDIMENT .TO FALL OUT. TABLE 3.05-A DEMONSTRATES THESE RELATIONSHIPS.

BOTH WOVEN AND NON-WOVEN SYNTHETIC FABRICS ARE COMMERCIALLY AVAILABLE. THE WOVEN FABRICS GENERALLY DISPLAY HIGHER STRENGTH THAN THE NON-WOVEN FABRICS AND, IN MOST CASES, DO NOT REQUIRE ANY ADDITIONAL REINFORCEMENT. WHEN TESTED UNDER ACID AND ALKALINE WATER CONDITIONS, MOST OF THE WOVEN FABRICS INCREASE IN STRENGTH, WHILE THE REACTIONS OF NON-WOVEN FABRICS TO THESE CONDITIONS ARE VARIABLE. THE SAME IS TRUE OF TESTING UNDER EXTENSIVE ULTRAVIOLET RADIATION. PERMEABILITY RATES VARY REGARDLESS OF FABRIC TYPE. WHILE ALL OF THE FABRICS DEMONSTRATE VERY HIGH FILTERING EFFICIENCIES FOR SANDY SEDIMENTS, THERE IS CONSIDERABLE VARIATION AMONG BOTH WOVEN AND NON-WOVEN FABRICS WHEN FILTERING THE FINER SILT AND CLAY PARTICLES.

DESIGN CRITERIA:

1. NO FORMAL DESIGN IS REQUIRED. AS WITH STRAW BALE BARRIERS, AN EFFORT SHOULD BE MADE TO LOCATE SILT FENCE AT LEAST 5 FEET TO

7 FEET BEYOND THE BASE OF DISTURBED SLOPES WITH GRADES GREATER THAN 7%.

CONSTRUCTION SPECIFICATIONS:

MATERIALS

1. SYNTHETIC FILTER FABRIC SHALL BE A PERVIOUS SHEET OF PROPYLENE, NYLON, POLYESTER OR ETHYLENE YARN AND SHALL BE CERTIFIED BY THE MANUFACTURER OR SUPPLIER AS CONFORMING TO THE REQUIREMENTS NOTED IN TABLE 3.05-B.

2. SYNTHETIC FILTER FABRIC SHALL CONTAIN ULTRAVIOLET RAY INHIBITORS AND STABILIZERS TO PROVIDE A MINIMUM OF SIX MONTHS OF

EXPECTED USABLE CONSTRUCTION LIFE AT A TEMPERATURE RANGE OF 0° F TO 120° F.

3. IF WOODEN STAKES ARE UTILIZED FOR SILT FENCE CONSTRUCTION, THEY MUST HAVE A DIAMETER OF 2 INCHES WHEN OAK IS USED AND 4

INCHES WHEN PINE IS USED. WOODEN STAKES MUST HAVE A MINIMUM LENGTH OF 5 FEET.

4. IF STEEL POSTS (STANDARD "U" OR "T" SECTION) ARE UTILIZED FOR SILT FENCE CONSTRUCTION, THEY MUST HAVE A MINIMUM WEIGHT OF 1.33

POUNDS PER LINEAR FOOT AND SHALL HAVE A MINIMUM LENGTH OF 5 FEET.

5. WIRE FENCE REINFORCEMENT FOR SILT FENCES USING STANDARD-STRENGTH FILTER CLOTH SHALL BE A MINIMUM OF 14 GAUGE AND SHALL

HAVE A MAXIMUM MESH SPACING OF 6 INCHES.

INSTALLATION:

1. THE HEIGHT OF A SILT FENCE SHALL BE A MINIMUM OF 16 INCHES ABOVE THE ORIGINAL GROUND SURFACE AND SHALL NOT EXCEED 34 INCHES

ABOVE GROUND ELEVATION.

2. THE FILTER FABRIC SHALL BE PURCHASED IN A CONTINUOUS ROLL CUT TO THE LENGTH OF THE BARRIER TO AVOID THE USE OF JOINTS. WHEN JOINTS ARE UNAVOIDABLE, FILTER CLOTH SHALL BE SPLICED TOGETHER ONLY AT A SUPPORT POST, WITH A MINIMUM 6-INCH OVERLAP, AND

SECURELY SEALED.

3. A TRENCH SHALL BE EXCAVATED APPROXIMATELY 4-INCHES WIDE AND 4-INCHES DEEP ON THE UPSLOPE SIDE OF THE PROPOSED LOCATION

OF THE MEASURE.

4. WHEN WIRE SUPPORT IS USED, STANDARD-STRENGTH FILTER CLOTH MAY BE USED. POSTS FOR THIS TYPE OF INSTALLATION SHALL BE PLACED A MAXIMUM OF 10-FEET APART (SEE PLATE 3.05-1). THE WIRE MESH FENCE MUST BE FASTENED SECURELY TO THE UPSLOPE SIDE OF THE POSTS USING HEAVY DUTY WIRE STAPLES AT LEAST ONE INCH LONG, TIE WIRES OR HOG RINGS. THE WIRE SHALL EXTEND INTO THE TRENCH A MINIMUM OF TWO INCHES AND SHALL NOT EXTEND MORE THAN 34 INCHES ABOVE THE ORIGINAL GROUND SURFACE. THE STANDARD-STRENGTH FABRIC SHALL BE STAPLED OR WIRED TO THE WIRE FENCE, AND 8 INCHES OF THE FABRIC SHALL BE EXTENDED INTO

THE TRENCH. THE FABRIC SHALL NOT BE STAPLED TO EXISTING TREES.

5. WHEN WIRE SUPPORT IS NOT USED, EXTRA-STRENGTH FILTER CLOTH SHALL BE USED. POSTS FOR THIS TYPE OF FABRIC SHALL BE PLACED A MAXIMUM OF 6-FEET APART (SEE PLATE 3.05-2). THE FILTER FABRIC SHALL BE FASTENED SECURELY TO THE UPSLOPE SIDE OF THE POSTS USING ONE INCH LONG (MINIMUM) HEAVY-DUTY WIRE STAPLES OR TIE WIRES AND EIGHT INCHES OF THE FABRIC SHALL BE EXTENDED INTO THE TRENCH. THE FABRIC SHALL NOT BE STAPLED TO EXISTING TREES. THIS METHOD OF INSTALLATION HAS BEEN FOUND TO BE MORE

COMMONPLACE THAN #4.

6. IF A SILT FENCE IS TO BE CONSTRUCTED ACROSS A DITCH LINE OR SWALE, THE MEASURE MUST BE OF SUFFICIENT LENGTH TO ELIMINATE ENDFLOW, AND THE PLAN CONFIGURATION SHALL RESEMBLE AN ARC OR HORSESHOE WITH THE ENDS ORIENTED UPSLOPE (SEE PLATE 3.05-2).

EXTRA-STRENGTH

FILTER FABRIC SHALL BE USED FOR THIS APPLICATION WITH A MAXIMUM 3-FOOT SPACING OF POSTS.

ALL OTHER INSTALLATION REQUIREMENTS NOTED IN #5 APPLY.

7. THE 4-INCH BY 4-INCH TRENCH SHALL BE BACKFILLED AND THE SOIL COMPACTED OVER THE FILTER FABRIC.

8. SILT FENCES SHALL BE REMOVED WHEN THEY HAVE SERVED THEIR USEFUL PURPOSE, BUT NOT BEFORE THE UPSLOPE AREA HAS BEEN

PERMANENTLY STABILIZED.

TABLE 3.05-B

PHYSICAL PROPERTIES OF

FILTER FABRIC IN SIILT FENCE

PHYSICAL PROPERTY TEST REQUIREMENTS

FILTERING EFFICIENCY ASTM 5141 75% (MINIMUM)

TENSILE STRENGTH AT 20%

(MAX.) ELONGATION*

VTM-52 EXTRA STRENGTH -

50 LBS./LINEAR INCH

(MINIMUM)

STANDARD STRENGTH -

30 LBS./LINEAR INCH

(MINIMUM)

FLOW RATE ASTM 5141 0.2 GAL./SQ FT./MINUTE

(MINIMIM)

ULTRAVIOLET RADIATION

STABILITY %

ASTM-G-26 90% (MINIMUM)

* REQUIREMENTS REDUCED TO 50% AFTER SIX MONTHS OF INSTALLATION.

SOURCE: VHTRC

GENERAL REQUIREMENTS:

NO PERSON MAY ENGAGE IN ANY LAND-DISTURBING ACTIVITY UNTIL HE OR SHE HAS SUBMITTED TO THE OFFICE OF BUILDING AND ZONING FOR NORTHUMBERLAND COUNTY AN EROSION AND SEDIMENT CONTROL PLAN FOR THE LAND-DISTURBING ACTIVITY AND SUCH PLAN HAS

BEEN APPROVED BY THE PLAN-APPROVING AUTHORITY.

PROJECT WORK WILL COMPLY WITH THE STANDARDS CONTAINED WITHIN THE "VIRGINIA EROSION AND SEDIMENT CONTROL REGULATIONS," AND THE VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK (VESC) AS AMENDED AND THE CHESAPEAKE BAY PRESERVATION AREA

DESIGNATION AND MANAGEMENT REGULATIONS (CBPA) AS CODIFIED (9VAC25-830).

THIS PROJECT DOES NOT INCLUDE ANY IMPACTS OR WORK WITHIN RESOURCE PROTECTION AREAS (RPAS) AS DESIGNATED BY THE CBPA;

NORTHUMBERLAND COUNTY IS A CBPA REGION AND THIS PROJECT IS WITHIN A RESOURCE MANAGEMENT AREA (RMA) AS DEFINED IN

COUNTY STATUTES.

AS THIS PROJECT RESULTS IN OVER 2,500 SQUARE FEET OF LAND DISTURBANCE AN E&S PERMIT IS REQUIRED FROM THE COUNTY FOR THIS WORKCOPIES OF THIS PERMIT ARE INCLUDED IN THE PROJECT MANUAL FOR REFERENCE AND THIS PLAN INCLUDES ALL REQUIRED E&S

CONTROL MEASURES REFERENCED IN THAT PERMIT.

AS A PUBLIC UTILITY PROJECT THIS PROJECT IS EXEMPT FROM FURTHER WATER QUALITY IMPACT ASSESSMENT UNDER THE C8PA PROVIDED ALL TERMS OF THE E&S PERMIT ARE TOLLOWED PER COUNTY STATUTE (S 54-18 - EXEMPTIONS) AS WORK IS LOCATED OUTSIDE OT DESIGNATED RPAS AND NO MORE LAND SHALL BE DISTURBED THAN IS NECESSARY TO PROVIDE FOR THE PROPOSED UTILITY INSTALLATION.

ALL SUCH CONSTRUCTION, INSTALLATION AND MAINTENANCE OF SUCH UTILITIES AND FACILITIES SHALL BE IN COMPLIANCE WITH ALL APPLICABLE STATE AND FEDERAL REQUIREMENTS AND PERMITS AND DESIGNED AND CONDUCTED IN A MANNER THAT PROTECTS WATER

QUALITY.

9VAC25-840-40. MINIMUM STANDARDS. CONTRACTOR SHALL EXECUTE WORK CONSISTENT WITH THE FOLLOWING CRITERIA, TECHNIQUES

AND METHODS:

1. PERMANENT OR TEMPORARY SOIL STABILIZATION SHALL BE APPLIED TO DENUDED AREAS WITHIN SEVEN DAYS AFTER FINAL GRADE IS REACHED ON ANY PORTION OF THE SITE. TEMPORARY SOIL STABILIZATION SHALL BE APPLIED WITHIN SEVEN DAYS TO DENUDED AREAS THAT MAY NOT BE AT FINAL GRADE BUT WILL REMAIN DORMANT FOR LONGER THAN 14 DAYS. PERMANENT STABILIZATION SHALL BE

APPLIED TO AREAS THAT ARE TO BE LEFT DORMANT FOR MORE THAN ONE YEAR.

2. DURING CONSTRUCTION OF THE PROJECT, SOIL STOCK PILES AND BORROW AREAS SHALL BE STABILIZED OR PROTECTED WITH SEDIMENT TRAPPING MEASURES- THE APPLICANT IS RESPONSIBLE FOR THE TEMPORARY PROTECTION AND PERMANENT STABILIZATION OF ALL SOIL STOCKPILES ON SITE AS WELL AS BORROW AREAS AND SOIL INTENTIONALLY TRANSPORTED FROM THE PROJECT SITE.

3. A PERMANENT VEGETATIVE COVER SHALL BE ESTABLISHED ON DENUDED AREAS NOT OTHENVISE PERMANENTLY STABILIZED.

PERMANENT VEGETATION SHALL NOT BE CONSIDERED ESTABLISHED UNTIL A GROUND COVAR IS ACHIEVED THAT IS UNIFORM, MATURE

ENOUGH TO SURVIVE AND WILL INHIBIT EROSIOM.

4. SEDIMENT BASINS AND TRAPS, PERIMETER DIKES, SEDIMENT BARRIERS AND OTHER MEASURES INTENDED TO TRAP SEDIMENT SHALL BE CONSTRUCTED AS A FIRST STEP IN ANY LAND-DISTURBING ACTIVITY AND SHALL BE MADE FUNCTIONAL BEFORE UPSLOPE LAND

DISTURBANCE TAKES PLACE.

5. STABILIZATION MEASURES SHALL BE APPLIED TO EARTHEN STRUCTURES SUCH AS DAMS, DIKES AND DIVERSIONS IMMEDIATELY AFTER

INSTALLATION. (NOT APPLICABLE TO THIS PROJECT SCOPE)

6. SEDIMENT TRAPS AND SEDIMENT BASINS SHALL BE DESIGNED AND CONSTRUCTED BASED UPON THE TOTAL DRAINAGE AREA TO BE

SERVED BY THE TRAP OR BASIN. (NOT APPLICABLE TO THIS PROJECT SCOPE)

a. THE MINIMUM STORAGE CAPACITY OF A SEDIMENT TRAP SHALL BE 134 CUBIC YARDS PER ACRE OF DRAINAGE AREA AND THE TRAP SHALL ONLY CONTROL DRAINAGE AREAS LESS THAN THREE ACRES. (NOT APPLICABLE TO HIS PROJECT SCOPE)

b. SURFACE RUNOFF FROM DISTURBED AREAS THAT IS COMPRISED OF FLOW FROM DRAINAGE AREAS GREATER THAN OR EQUAL TO THREE ACRES SHALL BE CONTROLLED BY A SEDIMENT BASIM THE MINIMUM STORAGE CAPACITY OT A SEDIMENT BASIN SHALL BE 134 CUBIC YARDS PER ACRE OF DRAINAGE AREA. THE OUTFALL SYSTEM SHALL, AT A MINIMUM, MAINTAIN THE STRUCTURAL INTEGRITY OF THE BASIN DURING A 25-YEAR STORM OF 24-HOUR DURATION- RUNOFF COEFFICIENTS USED IN RUNOFF CALCULATIONS SHALL CORRESPOND TO A BARE EATTH CONDITION OR THOSE CONDITIONS EXPECTED TO EXIST WHILE THE SEDIMENT BASIN IS UTILIZED-

(NOT APPLICABLE TO THIS PROJECT SCOPE)

7. CUT AND FILL SLOPES SHALL BE DESIGNED AND CONSTRUCTED IN A MANNER THAT WILL MINIMIZE EROSION- SLOPES THAT ARE FOUND TO BE ERODING EXCESSIVELY WITHIN ONE YEAR OF PERMANENT STABILIZATION SHALL BE PROVIDED WITH ADDITIONAL SLOPE STABILIZING MEASURES UNTIL THE PROBLEM IS CORRECTED. (NOT APPLICABLE TO THIS PROJECT SCOPE)

8. CONCENTRATED RUNOFF SHALL NOT FLOW DOWN CUT OR FILL SLOPES UNLESS CONTAINED WITHIN AN ADEQUATE TEMPORARY OR PERMANENT CHANNEL, FLUME OR SLOPE DRAIN STRUCTURE- (NOT APPLICABLE TO THIS PROJECT SCOPE)

9. WHENEVER WATER SEEPS FROM A SLOPE FACE, ADEQUATE DRAINAGE OR OTHER PROTECTION SHALL BE PROVIDED. (NOT APPLICABLE

TO THIS PROJECT SCOPE)

10. ALL STORM SEWER INLETS THAT ARE MADE OPERABLE DURING CONSTRUCTION SHALL BE PROTECTED SO THAT SEDIMENT-LADEN WATER CANNOT ENTER THE CONVEYANCE SYSTEM WITHOUT FIRST BEING FILTERED OR OTHENVISE TREATED TO REMOVE SEDIMENT.

(NOT APPLICABLE TO THIS PROJECT SCOPE)

11. BEFORE NEWLY CONSTRUCTED STORMWATER CONVEYANCE CHANNELS CR PIPES ARE MADE OPERATIONAL, ADEQUATE OUTLET PROTECTION AND ANY REQUIRED TEMPORARY OR PERMANENT CHANNEL LINING SHALL BE INSTALLED IN BOTH THE CONVEYANCE

CHANNEL AND RECEIVING CHANNEL. (NOT APPLICABLE TO THIS PROJECT SCOPE)

12. WHEN WORK IN A LIVE WATERCOURSE IS PERFORMED, PRECAUTIONS SHALL BE TAKEN TO MINIMIZE ENCROACHMENT, CONTROL SEDIMENT TRANSPORT AND STABILIZE THE WORK AREA TO THE GREATEST EXTENT POSSIBLE DURING CONSTRUCTION. NONERODIBLE MATERIAL SHALL BE USED FOR THE CONSTRUCTION OF CAUSEWAYS AND COFFERDAMS. EARTHEN FILL MAY BE USED FOR THESE STRUCTURES IF ARMORED BY NONERODIBLE COVER MATERIALS. (NOT APPLICABLE TO THIS PROJECT SCOPE)

13. WHEN A LIVE WATERCOURSE MUST BE CROSSED BY CONSTRUCTION VEHICLES MORE THAN TWICE IN ANY SIX-MONTH PERIOD, A TEMPORARY VEHICULAR STREAM CROSSING CONSTRUCTED OF NONERODIBLE MATERIAL SHALL BE PROVIDED- (NOT APPLICABLE TO

THIS PROJECT SCOPE)

14. ALL APPLICABLE FEDERAL, STATE AND LOCAL REQUIREMENTS PERTAINING TO WORKING IN OR CROSSING LIVE WATERCOURSES SHALL

BE MET (NOT APPLICABLE TO THIS PROJECT SCOPE)

15. THE BED AND BANKS OF A WATERCOURSE SHALL BE STABILIZED IMMEDIATELY AFTER WORK IN THE WATERCOURSE IS COMPLETED. (NOT

APPLICABLE TO THIS PROJECT SCOPE)

16. UNDERGROUND UTILITY LINES SHALL BE INSTALLED IN ACCORDANCE WITH THE FOLLOWING STANDARDS IN ADDITION TO OTHER

APPLICABLE CRITERIA:

a. NO MORE THAN 500 LINEAR FEET OF TRENCH MAY BE OPENED AT ONE TIME

b. EXCAVATED MATERIAL SHALL BE PLACED ON THE UPHILL SIDE OF TRENCHES.

c. EFFLUENT FROM DEWATERING OPERATIONS SHALL BE FILTERED OR PASSED THROUGH AN APPROVED SEDIMENT TRAPPING DEVICE, OR BOTH, AND DISCHARGED IN A MANNER THAT DOES NOT ADVERSELY AFFECT FLOWING STREAMS OR OFF-SITE PROPENY.

d. MATERIAL USED FOR BACKFILLING TRENCHES SHALL BE PROPERLY COMPACTED IN ORDER TO MINIMIZE EROSION AND PROMOTE

STABILIZATION.

e. RESTABILIZATION SHALL BE ACCOMPLISHED IN ACCORDANCE WITH THIS CHAPTER

f. APPLICABLE SAFETY REQUIREMENTS SHALL BE COMPLIED WITH.

17. WHERE CONSTRUCTION VEHICLE ACCESS ROUTES INTERSECT PAVED OR PUBLIC ROADS, PROVISIONS SHALL BE MADE TO MINIMIZE THE TRANSPORT OF SEDIMENT BY VEHICULAR TRACKING ONTO THE PAVED SURFACE. WHERE SEDIMENT IS TRANSPORTED ONTO A PAVED OR PUBLIC ROAD SURFACE, THE ROAD SURFACE SHALL BE CLEANED THOROUGHLY AT THE END OF EACH DAY- SEDIMENT SHALL BE REMOVED FROM THE ROADS BY SHOVELING OR SWEEPING AND TRANSPORTED TO A SEDIMENT CONTROL DISPOSAL AREA- STREET WASHING SHALL BE ALLOWED ONLY AFTER SEDIMENT IS REMOVED IN THIS MANNER- THIS PROVISION SHALL APPLY TO INDIVIDUAL DEVELOPMENT LOTS AS WELL AS TO LARGER LAND-DISTURBING ACTIVITIES. (NOT APPLICABLE TO THIS PROJECT SCOPE)

18. ALL TEMPORARY EROSION AND SEDIMENT CONTROL MEASURES SHALL BE REMOVED WITHIN 30 DAYS AFTER FINAL SITE STABILIZATION OR AFTER THE TEMPORARY MEASURES ARE NO LONGER NEEDED, UNLESS OTHERWISE AUTHORIZED BY THE VESCP AUTHORITY.

TRAPPED SEDIMENT AND THE DISTURBED SOIL AREAS RESULTING FROM THE DISPOSITION OF TEMPORARY MEASURES SHALL BE

PERMANENTLY STABILIZED TO PREVENT FURTHER EROSION AND SEDIMENTATION.

19. PROPERTIES AND WATENVAYS DOWNSTREAM FROM DEVELOPMENT SITES SHALL BE PROTECTED FROM SEDIMENT DEPOSITION, EROSION AND DAMAGE DUE TO INCREASES IN VOLUME, VELOCITY AND PEAK FLOW RATE OF STORMWATER RUNOFF FOR THE STATED FREQUENCY STORM OF 24-HOUR DURATION IN ACCORDANCE WITH THE FOLLOWING STANDARDS AND CRITERIA- STREAM RESTORATION AND RELOCATION PROJECTS THAT INCORPORATE NATURAL CHANNEL DESIGN CONCEPTS ARE NOT MAN-MADE CHANNELS AND SHALL BE EXEMPT FROM ANY FLOW RATE CAPACITY AND VELOCITY REQUIREMENTS TOR NATURAL OR MAN-MADE CHANNELS: (NOT APPLICABLE TO THIS PROJECT SCOPE, LESS THAN 1 SQUARE FEET OF NEW IMPERVIOUS COVER CREATED ON PROJECT; NET REDUCTION OF 4,700 STT-)

CE CONSTRUCTION ENTRANCE

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E&S DETAILS

M O

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WASHRACK

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(OPTIONAL)

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POSITIVE DRAINAGE

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TO SEDIMENT

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TRAPPING DEVICE

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VDOT #1

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COURSE AGGREGATE

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FILTER CLOTH

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REINFORCED

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CONCRETE

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12' MIN.

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EXISTING GROUND

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FILTER CLOTH

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70' MIN.

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DRAIN SPACE

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MIN.

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10' MIN.

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EXISTING

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PAVEMENT

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MOUNTABLE BERM

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(OPTIONAL)

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10' MIN.

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EXISTING

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PAVEMENT

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STONE CONSTRUCTION ENTRANCE

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SECTION B-B

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SECTION A-A

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PLAN VIEW

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3" MIN.

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3" MIN.

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* MUST EXTEND FULL WIDTH

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OF INGRESS AND EGRESS

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OPERATION

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70' MIN.

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6" MIN.

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SIDE ELEVATION

AutoCAD SHX Text SOURCE: ADAPTED from %%u1983 Maryland Standards for Soil erosion and Sediment Control%%u, and Va. DSWC

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AutoCAD SHX Text 5:1

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12' MIN.

AutoCAD SHX Text Plate 3.02-1

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2. STAPLE WIRE FENCING TO THE POSTS.

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4. BACKFILL AND COMPACT THE

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EXCAVATED SOIL.

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EXTENSION OF FABRIC AND WIRE INTO THE TRENCH.

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(WITH WIRE SUPPORT)

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CONSTRUCTION OF A SILT FENCE

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3. ATTACH THE FILTER FABRIC TO THE WIRE

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FENCE AND EXTEND IT INTO THE TRENCH.

AutoCAD SHX Text SOURCE: Adapted from %%uInstallation of Straw and Fabric Filter Barriers for Sediment Control%%u, AutoCAD SHX Text

FILTER FABRIC

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WIRE

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FLOW

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1. SET POSTS AND EXCAVATE A 4"X4"

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TRENCH UPSLOPE ALONG THE LINE

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FLOW

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OF POSTS.

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PLATE. 3.05-1

AutoCAD SHX Text Sherwood & Wyant

High School

Middle School

Septic Tank 9,000 Gallon

Elementary School Septic Tank Septic Tank

Existing 7,500 gpd Drain Field

9,000 Gallon EQ Tank

FCV

1,000 gpd Maximum Discharge

350 to 1,000 gpd Controlled Flow

9,000 gallon wet well

LE HW

VFD

MSHS_Pump1 MSHS_Pump2

- Influent grinder to be removed from service (not replaced) since all flow will now be routed through new septic tank system.

LE Drain Field Pump Station

Control Panel (CP)

Flow Meter

Fl ow

M et er

Capped Control Panel

(CP-2)

SBR

Treatment

System to be De-rated and Permitted from

15,000 gpd to 1,000 gpd

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PROCESS FLOW DIAGRAM

NOT TO SCALE

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PROCESS FLOW

DIAGRAM

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GENERAL NOTES:

A. FORCE MAIN SHALL BE 2-INCH HDPE IPS SIZE (INNER DIAMETER CONTROLLED), PE4710, DR 11.5, NSF 61 APPROVED, MINIMUM

2% CARBON BLACK FOR UV RAY PROTECTION, AND SHALL MEET ASTM D2239. THE FORCE MAIN SHALL BE ELECTRO-FUSION SOCKET WELDED WITH PIPE BEDDING MATERIAL AS SHOWN ON D-501. TRANSITION FITTINGS FROM PVC/PVC TO HDPE SHALL NOT BE BURIED AND SHALL BE NSF APPROVED PE OR HDPE COMPRESSION TYPE FITTINGS FOR HDPE PIPE MEETING OR EXCEEDING PIPE SPECIFICATIONS, ASTM D2239, AND SPECIFICALLY RATED FOR IPS SIZED (INNER DIAMETER CONTROLLED)

HDPE PIPE.

B. GRAVITY SEWER PIPE SHALL BE ANSI/AWWA C900-16; SDR 32.5 (125 PSI); PIPE COMPOUND: ASTM D1784 CELL CLASS 12454;

GASKET: ASTM F477; INTEGRAL BELL JOINT: ASTM D3139; ANSI/NSF 61 CERTIFIED.

C. CHECK VALVE(S) SHALL BE POLYPROPYLENE SWING CHECK TYPE WITH COUNTER WEIGHTED ARM AND SHALL BE OF SOLID THERMOPLASTIC CONSTRUCTION, HAVING NO METAL THAT COMES IN CONTACT WITH MEDIUM, AND SHALL HAVE EPDM SEATS AND SEALS. VALVE TO HAVE ANSI FLANGED CONNECTIONS. VALVES SHALL INCORPORATE A SINGLE DISC DESIGN SUITABLE FOR EITHER HORIZONTAL OR VERTICAL INSTALLATIONS. VALVES SHALL BE OF TOP ENTRY BONNET DESIGN FOR MAINTENANCE PURPOSES WITH O-RING TOP BONNET SEAL. PP SHALL BE CONFORMING TO ASTM D4101 CELL CLASSIFICATION PP0210B67272. VALVES SHALL BE RATED TO 150PSI SIZES 3/4” THROUGH 3” AT 70º F, AS MANUFACTURED BY ASAHI/AMERICA.

D. MODULATION DIAPHRAGM CONTROL VALVE SHALL BE TYPE-14 TRUE UNION TYPE AND SOLID CPVC THERMOPLASTIC CONSTRUCTION FOR BODY AND BONNET WITH SOCKET END CONNECTORS. THE VALVES SHALL COME STANDARD WITH A POSITION INDICATOR, TRAVEL STOP AND BONNET O-RING SEALING ARRANGEMENT. THE VALVE SHALL BE WEIR TYPE WITH A SQUARE BONNET BODY SEALING DESIGN AND BAYONET CONNECTION DIAPHRAGM. DIAPHRAGMS AND O-RINGS SHALL BE EPDM. CPVC CONFORMING TO ASTM D1784 CELL CLASSIFICATION 23567A, PPG (BONNET ONLY) CONFORMING TO ASTM D4101 CELL CLASSIFICATION PP0110M20A21130. SHALL BE RATED TO 150PSI AT 70º F, AS MANUFACTURED BY ASAHI/AMERICA, INC.

E. ELECTRIC ACTUATOR FOR MODULATING DIAPHRAGM CONTROL VALVES SHALL BE SERIES 92 REVERSING, CAPACITOR RUN 120 VAC 50/60 HZ, MOTOR WITH INTEGRAL THERMAL OVERLOAD PROTECTION WITH AUTOMATIC RESET; PERMANENTLY LUBRICATED, ROCKWELL HARDENED GEARING; THERMALLY BONDED POLYESTER POWDER COAT FINISH; WEATHER PROOF ENCLOSURE WITH SS TRIM; TWO ½” FNPT CONDUIT ENTRIES TO ELIMINATE CROSS FEED BETWEEN CONTROL, FEEDBACK, AND POWER SIGNALS; HIGHLY VISIBLE BEACON POSITION INDICATOR; STANDARD END OF TRAVEL LIMIT SWITCHES CAN BE USED FOR LIGHT INDICATION; DECLUTCHABLE MANUAL OVERRIDE; RHM MODULE (CONSISTING OF A HEATER AND THERMOSTAT, AND 2-SPDT 8A DRY CONTACT RELAYS FOR PLC POSITION CONFIRMATION. CAPTIVATED SS HEXHEAD SLOTTED ENCLOSURE SCREWS; MOUNTING IS WITH SS BRACKET, COUPLING AND FASTENERS; FEEDBACK POTENTIOMETER;

POSITIONER (MODULATING PCB); TRANSMITTER; REMOTE CONTROL STATION HMI CONTROLLED. AS MANUFACTURED BY

ASAHI/AMERICA, INC.

F. BALL VALVES:

CPVC BALL VALVES FOR ISOLATION: ALL BALL VALVES SHALL BE CPVC AND SHALL BE OF TRUE UNION DESIGN WITH TWO-WAY BLOCKING CAPABILITY. ALL O-RINGS SHALL BE EPDM WITH PTFE SEATS. PTFE SEATS SHALL HAVE ELASTOMERIC BACKING CUSHION OF THE SAME MATERIAL AS THE VALVE SEALS. STEM SHALL HAVE DOUBLE O-RINGS AND BE OF BLOWOUT PROOF DESIGN. THE VALVE HANDLE SHALL DOUBLE AS CARRIER REMOVAL AND/OR TIGHTENING TOOL. ISO MOUNTING PAD SHALL BE INTEGRALLY MOLDED TO VALVE BODY FOR ACTUATION. CPVC CONFORMING TO ASTM D1784 CELL CLASSIFICATION 23567-A.

SHALL HAVE A PRESSURE RATING OF 230PSI FOR SIZES 1/2” TO 3” AND 150PSI FOR 4” AT 70º F. MUST CARRY A TWO-YEAR

GUARANTEE. MANUFACTURER: ASAHI/AMERICA, INC. TYPE - 21/21A.

G. ALL PVC AND CPVC PIPE SMALLER THAN 4 INCHES SHALL BE SOLVENT WELDED WITH IPS WELDON 724 INDUSTRIAL GRADE

ALKALINE CHEMICAL RESISTANT SOLVENT CEMENT.

H. MAGNETIC FLOWMETERS:

MAGNETIC FLOW METER SYSTEMS SHALL INCLUDE A MAGNETIC FLOW TUBE AND A MICROPROCESSOR-BASED "SMART" TRANSMITTER AND SHALL UTILIZE THE CHARACTERIZED FIELD PRINCIPLE OF ELECTROMAGNETIC INDUCTION, AND SHALL

PRODUCE DC SIGNALS DIRECTLY PROPORTIONAL TO THE LIQUID FLOW RATE:

1. SENSING HEAD:

a. END CONNECTIONS: CLASS 150 RAISED FACE FORGED STEEL FLANGES.

b. PIPE MATERIAL: 304 STAINLESS STEEL.

c. LINER MATERIAL AND ASSOCIATED MAXIMUM OPERATING TEMPERATURE: URETHANE

d. ELECTRODE MATERIAL: STAINLESS STEEL.

e. GROUNDING RING: STAINLESS STEEL.

f. RATED FOR SUBMERSION CONDITIONS POTTED JUNCTION BOX.

2. PROGRAMMABLE MICROPROCESSOR BASED INDICATING TRANSMITTER: (TRANSMITTER REMOTE MOUNT)

a. POWER SUPPLY: 120 VOLTS AC.

b. THE TRANSMITTER SHALL UTILIZE "SMART" ELECTRONICS AND SHALL CONTAIN AUTOMATIC, CONTINUOUS ZERO

CORRECTION.

c. LOCAL OPERATOR INTERFACE CAPABLE OF DISPLAYING FLOW RATE AND TOTALIZED FLOW AND LOCATED AS

INDICATED ON THE DRAWINGS.

d. THE TRANSMITTER SHALL FEATURE CONTINUOUS, ON-DEMAND CALIBRATION VERIFICATION WITHOUT USE OF ANY

EXTERNAL DEVICES.

e. OUTPUT: 4-20 M AMP OUTPUT PROPORTIONAL TO FLOW RATE.

f. NEMA 4X RATED.

g. TRANSMITTER SHALL BE WALL MOUNTED OR UNISTRUT MOUNTED AND SHALL NOT BE MOUNTED ON THE FLOW

METER.

3. SYSTEM PERFORMANCE:

a. ACCURACY: PLUS OR MINUS 0.5 PERCENT OF READING AT FLOW VELOCITIES BETWEEN 0.5 AND 10 FEET PER

SECOND;

b. REPEATABILITY: PLUS OR MINUS 0.1 PERCENT OF READING.

4. MANUFACTURERS:

a. ROSEMOUNT 8750 W MAGNETIC FLOW METER, 2" SIZE

I. PUMP SPECIFICATIONS:

GOULDS SEWAGE PUMP 2GFV3214K; 3.2HP; 3 PHASE; 460V; VORTEX IMPELLER; 3,400 RPM MOTOR; SEAL LEAK AND HIGH TEMP

SENSORS (MINI CAS); INVERTER DUTY RATED;

DESIGN CONDITIONS: 27 GPM AT 42 FT TDH @ 100% SPEED

DESIGN CONDITIONS: 14 GPM AT 10 FT TDH @ 50% SPEED

PUMP CONTROL (VFDs) AND MINI CAS TO BE HOUSED IN A CUSTOM CONTROL PANEL WITH INTEGRAL MOTOR OVERLOAD AND

OVER CURRENT PROTECTION FOR EACH PUMP MOTOR. SEE E-601.

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GENERAL NOTES

M O

" G R

F R

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H /M

C H

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SF SF

SF SF SF

EXISTING 8" GRAVITY SEWER FROM ATHLETIC COMPLEX

PS MU

LIMIT OF DISTURBANCE

LIMIT OF

DISTURBANCE

TEMPORARY

STOCKPILE

LOCATION

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1 SEPTIC TANK AND PUMP STATION PLAN

SCALE: 1" = 10'

0 20'10'

1. CORE DRILL EXISTING 4'Ø MANHOLE FOR NEW 8" GRAVITY PVC. UTILIZE A

MECHANICALLY INSERTED BOOT STYLE RUBBER CONNECTOR.

2. 9,000 GALLON SEPTIC TANK, SEE D1/D-301 FOR DETAIL.

3. 9,000 GALLON WET WELL, SEE D2/D-301 FOR DETAIL.

4. CORE DRILL AND LINK SEAL BOTH STRUCTURES AND CONNECT WITH 8"

GRAVITY SEWER. SEE S1/D-301 AND S2/D-301 FOR DETAILS.

5. MSHS PUMP NO. 1, SEE D-301 FOR DETAIL. SEE D-002 FOR SPECIFICATION.

6. MSHS PUMP NO. 2, SEE D-301 FOR DETAIL. SEE D-002 FOR SPECIFICATION.

7. VALVE VAULT, SEE D1/D-501 FOR DETAIL.

8. 2" SCH. 40 CPVC.

9. FLOW METER VAULT, SEE D2/D-501 FOR DETAIL.

10. MODULATING CONTROL VALVE, SEE D-002 AND D3/D-501 FOR DETAIL.

11. CONTROL PANEL, SEE E-001 & E-601.

12. CUT EXISTING 8" SEWER AND PERMANENTLY CAP EACH END.

13. ABANDON IN PLACE EXISTING 8" SEWER.

14. 8" GRAVITY PVC

15. 2" HDPE FORCEMAIN, SEE D-002 FOR SPECIFICATIONS. TRANSITION FROM

CPVC TO HDPE WITHIN FLOW METER VAULT USING MECHANICAL

COMPRESSION FITTINGS.

16. 2" HDPE TO EQ TANKS, SEE C-101 FOR CONTINUATION.

17. EXISTING SEWAGE TREATMENT PLANT.

18. EXISTING CHLORINE CONTACT TANK.

19. EXISTING POWER DISTRIBUTION BUILDING.

20. 1½" SCH. 40 CPVC.

21. ROUTE 1.5" CPVC ALONG EXISTING CONCRETE TANK WALL AND EXTEND 12"

ABOVE TOP OF STRUCTURE AND THEN EXTEND DOWN 7' INTO THE TANK.

HEAT TRACE AND INSULATE PIPING. USE STAINLESS PVC FASTENERS TO

SUPPORT PIPE TO EXISTING CONCRETE SURFACES EVERY 24" ALONG

ENTIRE PIPE ROUTING.

SHEET KEY NOTES

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SEPTIC TANK AND

PUMP STATION

PLAN

M O

S2 S-301

S1 S-301

PS MU

TEMPORARY

STOCKPILE

LOCATION

PS MU

30+00 31+00 31+25

K N o.

(0 .5

' A

F) 8"

O U

.5 ' A

F F)

T/ C

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T D

L 8"

.5 ' A

F F)

T/ C

O N

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N o.

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.6 ' A

F F)

T/ C

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E L

NOTES FOR D1:

1. CONCRETE: 5,000 PSI MIN. STRENGTH @ 28 DAYS.

2. STEEL REINFORCING - ASTM A-615, GRADE 60.

3. COVER TO SEEL - 1" MIN.

4. TANKS ARE DESIGNED TO MEET ASTM C858 AND ACI 318.

5. EARTH COVER - 0 TO 5 FEET MAX.

6. CONSTRUCTION JOINT - SEALED WITH 1" DIA. BUTYL RUBBER OR EQUAL.

7. SIZE OF INFLUENT/EFFLUENT PIPING PENETRATIONS SHALL BE AS SHOWN ON THE DRAWINGS.

ALL INTERNAL PIPING SHALL MATCH THE INFLUENT/EFFLUENT PIPE SIZE SHOWN ON THE

DRAWINGS.

8. PENETRATIONS FOR PIPE SIZES 4" AND LARGER SHALL HAVE A CAST-IN RUBBER BOOT STYLE

CONNECTOR MEETING ASTM C923.

9. PENETRATIONS FOR PIPE SIZES SMALLER THAN 4" SHALL HAVE A MECHANICALLY INSTALLED

RUBBER BOOT STYLE CONNECTOR MEETING ASTM C923. STRUCTURE TO BE CORE DRILLED.

'-0

16'-0"

17'-0"

9' -6

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1 EQUALIZATION TANK SYSTEM PLAN AND SECTION

SCALE: 1" = 10'

0 20'10'

1. EXISTING DRAIN FIELD PUMP STATION WETWELL.

2. EXISTING DRAIN FIELD PUMP STATION, PUMP NO. 1 AND PUMP NO. 2.

3. CORE DRILL EXISTING DRAIN FIELD PUMP STATION WETWELL 6" ABOVE

FINISHED FLOOR. UTILIZE A MECHANICALLY INSERTED BOOT STYLE RUBBER

CONNECTOR.

4. 8" PVC GRAVITY SEWER.

5. 8" INVERT TO BE 6" ABOVE FINISHED FLOOR OF NEW STRUCTURE..

6. 9,000 GAL PRECAST EQ TANK/WETWELL NO. 1, SEE D1/D-102.

7. 9,000 GAL PRECAST EQ TANK/WETWELL NO. 2, SEE D1/D-102.

8. 2" HDPE FORCE MAIN. SEE C-101 FOR CONTINUATION.

9. CONTRACTOR TO VERIFY (A) COVER DEPTH OVER TANK; AND (B) DEPTH TO

FINISHED FLOOR OF EXISTING PUMP STATION WETWELL AND NOTIFY

ENGINEER IF DIFFERENT THAN SHOWN.

10. HDPE MECHANICAL COMPRESSION FITTING.

11. PVC OR SS PIPE SUPPORTS EVERY 4 VERTICAL FEET.

12. EXISTING FORCEMAIN TO EXISTING DRAIN FIELD.

13. NEW 12' WIDE MANUAL OPEN DOUBLE SWING GATE TO MATCH EXISTING

FENCE COLOR AND MATERIAL OF CONSTRUCTION.

14. EXISTING FENCE.

SHEET KEY NOTES

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EQUALIZATION

TANK SYSTEM PLAN

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M O

S1 EQUALIZATION TANK SYSTEM SECTION

SCALE: 1" = 20' 0 20' 40'

D1 EQUALIZATION TANK SYSTEM SECTION

SCALE: 1/4" = 1'-0" 8'4'0

LIMIT OF

DISTURBANCE

LIMIT OF

DISTURBANCE

10+00 11+00 11+25

N o.

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C O

N C

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O N

C E

L =7

N o.

O U

C O

N C

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O N

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L =7

T M

E L

V O

U T

20+00 21+00 21+25

N W

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O N

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/C O

N C

E L

=7 3.

K N o.

V O

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T/ C

O N

C E

E L

/C O

N C

E L

=7 3.

9' -0

(3) 24" Ø

LOCKABLE

COVERS

1'-4"

8" KNOCKOUT

(TYP)

'-0

6'-9"

9' -5

" I N

R T

'-0

8" 9'

-6

5'-0"6" BAFFLE

3" 8"Ø HOLE

1' -0

NOTES FOR D2 AND D3:

1. CONCRETE: 5,000 PSI MIN. STRENGTH @ 28 DAYS.

2. STEEL REINFORCING - ASTM A-615, GRADE 60.

3. COVER TO SEEL - 1" MIN.

4. TANKS ARE DESIGNED TO MEET ASTM C858 AND ACI 318.

5. EARTH COVER - 0 TO 5 FEET MAX.

6. CONSTRUCTION JOINT - SEALED WITH 1" DIA. BUTYL RUBBER OR

EQUAL.

7. SIZE OF INFLUENT/EFFLUENT PIPING PENETRATIONS SHALL BE AS

SHOWN ON THE DRAWINGS. ALL INTERNAL PIPING SHALL MATCH

THE INFLUENT/EFFLUENT PIPE SIZE SHOWN ON THE DRAWINGS.

8. PENETRATIONS FOR PIPE SIZES 4" AND LARGER SHALL HAVE A

CAST-IN RUBBER BOOT STYLE CONNECTOR MEETING ASTM C923.

9. PENETRATIONS FOR PIPE SIZES SMALLER THAN 4" SHALL HAVE A

MECHANICALLY INSTALLED RUBBER BOOT STYLE CONNECTOR

MEETING ASTM C923. STRUCTURE TO BE CORE DRILLED.

10'-0"

'-0

INFLUENT

17'-0"

16'-0" 17'-0"

(3) 24" Ø

LOCKABLE

COVERS

'-0

8" GRAVITY PVC

PRECAST VALVE VAULT,

SEE D1/D-301 FOR VAULT

AND PIPING DETAILS

MSHS

PUMP NO.2

MSHS

PUMP NO.1

PUMP RAIL SYSTEM,

SEE D3, THIS SHEET

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SCALE: 1" = 20' HORIZ : 1" = 4' VERT 0 20' 40'

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SEPTIC TANK AND

PUMP STATION

SECTIONS

M O

S2 SEPTIC TANK AND PUMP STATION SECTION

SCALE: 1" = 20' HORIZ : 1" = 4' VERT 0 20' 40'

9,000 GALLON CAPACITY SEPTIC TANK

N.T.S.

PLAN VIEW

SECTION A SECTION B

9,000 GALLON SUBMERSIBLE PUMP STATION/WETWELL

N.T.S.

PLAN VIEW

SECTION C

D3 PUMP RAIL SYSTEM DETAILS

N.T.S.

ISOMETRIC VIEW ISOMETRIC VIEW

ELEVATION VIEW PLAN VIEW

HILTI SS EPOXY

ANCHOR, 3 8" DIA.

MIN 3" EMBEDMENT

ALL ELEMENTS OF PUMP RAIL SUPPORT

SYSTEM TO BE STAINLESS STEEL.

FINISHED GRADE

PIPE, O.D. VARIES

PIPE BEDDING #67

(SEE NOTES 1A, B, & C)

TRENCH WIDTH

1/8 PIPE O.D.

4" MIN.

PLASTIC PIPE

COMPACTED BACKFILL

SEE NOTE 3

DETECTABLE TAPE

STRAPPED TO PIPE

1/2 PIPE O.D. 3" MIN.

1 PIPE O.D.

4" MIN.

FIRM SUBGRADE,

SEE NOTE 1(B)

3 36

5 4

3 3

16 16

6 618

3 3

16 16

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SPECIFICATIONS:

1. PIPE BEDDING

A. PIPE BEDDING MATERIAL: PIPE BEDDING SHALL BE GRANULAR MATERIAL CONSISTING OF SAND, GRAVEL OR CRUSHED STONE

MEETING THE REQUIREMENTS OF ASTM DESIGNATION C33, GRADATION 67 (3/4 INCH TO NO. 4).

B. FOUNDATION IN POOR SOIL: WHENEVER THE SOIL AT THE TRENCH SUB-GRADE ELEVATION IS SOFT, UNSTABLE, OR SATURATED

WITH WATER, SUCH UNSUITABLE MATERIAL WILL BE REMOVED AND THE TRENCH SUB-GRADE STABILIZED WITH A GRANULAR STABILIZATION MATERIAL MAXIMUM SIZE OF GRANULAR MATERIAL SHALL BE TWO (2) INCHES. DEPTH OF STABILIZATION SHALL BE

AS REQUIRED TO CONSTRUCT A FIRM SUB-GRADE FOR PIPE BEDDING MATERIAL.

C. STONES AND ROCKS SHALL BE REMOVED AT LEAST 6 INCHES BELOW THE PIPE BOTTOM AND SELECTED BEDDING PROVIDED.

2. BACKFILL

A. ALL MATERIAL USED FOR BACKFILL OF TRENCHES SHALL BE FREE OF EXCESSIVE AMOUNTS OF DELETERIOUS MATERIALS SUCH AS

ALL ORGANIC MATTER, FROZEN CLODS AND STICKY MASSES OF CLAY AND GUMBO WHICH ARE DIFFICULT TO PROPERLY COMPACT.

BACKFILL TO BE PLACED WITHIN 12 INCHES OF THE INSTALLED PIPE IN ANY DIRECTION SHALL NOT CONTAIN EARTH CLODS OR ROCK MATERIAL GREATER THAN ONE (1) INCH IN GREATEST DIMENSION. BACKFILL TO BE PLACED GREATER THAN 12 INCHES FROM THE TOP OF PIPE SHALL NOT CONTAIN EARTH CLODS OR ROCK MATERIAL GREATER THAN FOUR (4) INCHES IN GREATEST DIMENSION, MATERIAL AS SPECIFIED FOR PIPE BEDDING MAY BE SUBSTITUTED FOR BACKFILL MATERIAL DEFINED ABOVE FROM

TOP OF PIPE BEDDING TO 12 INCHES ABOVE TOP OF PIPE.

B. BACKFILL SHALL BE PLACED IN ACCORDANCE WITH LAYING CONDITION TYPE 4 AS ILLUSTRATED ON THE DETAILS DRAWING.

BACKFILL SHALL BE DEPOSITED IN LAYERS OF A THICKNESS THAT WILL PERMIT COMPACTION TO A DENSITY AS SPECIFIED

HEREINAFTER.

C. THE LAYERS OF MATERIAL SHALL BE COMPACTED TO A DENSITY OF AT LEAST 90 PERCENT (90%) OF THE MAXIMUM DENSITY AS DETERMINED BY THE AASHO STANDARD TEST (AASHO DESIGNATION T99) WHEREVER THE PIPE IS INSTALLED IN OPEN FIELDS OR AREAS WHICH CARRY NO VEHICULAR TRAFFIC. THE TOP PORTION OF THE BACKFILL AREAS THAT ARE TO BE RE-SODDED SHALL BE COMPOSED OF TOPSOIL AT LEAST SIX (6) INCHES IN DEPTH AND CORRESPONDING TO THAT OF THE ADJOINING SODDED AREAS.

D. THE LAYERS OF MATERIAL SHALL BE COMPACTED TO A DENSITY OF AT LEAST 95 PERCENT (95%) OF THE MAXIMUM DENSITY AS DETERMINED BY THE AASHO STANDARD TEST (AASHO DESIGNATION T99) FOR ALL PIPE PLACED WITHIN 10 LINEAR FEET OF A ANY ROADWAY AND UNDER ALL PAVEMENTS AND INDICATED FUTURE PAVEMENTS. PAVEMENT SHALL NOT BE RESTORED OVER TRENCHES UNTIL THE BACKFILL MATERIAL HAS BEEN TESTED AND DETERMINED AS SATISFACTORY ACCORDING TO PROJECT

TESTING REQUIREMENTS.

E. REMOVE AND DISPOSE OF ANY MATERIAL NOT USED FOR BACKFILL.

F. BACKFILL MATERIALS SHALL BE PLACED EVENLY ADJACENT TO PIPING TO REQUIRED ELEVATIONS.

G. EXISTING PAVEMENT WHICH HAS BEEN CUT, DAMAGED, OR REMOVED DURING CONSTRUCTION SHALL BE RESTORED TO EQUAL OR

BETTER THAN ORIGINAL CONDITIONS. CONTRACTOR SHALL SAW CUT PERIMETER OF PATCH AND EXCAVATE EXISTING PAVEMENT SECTION TO SOUND BASE. RE-COMPACT NEW SUBGRADE, EXCAVATE TRIANGULAR PATCHES EXTENDING 12 INCHES INTO EXISTING SOUND PAVEMENT, TRACK COAT FACES OF PAVEMENT, AND ALLOW TO CURE PRIOR TO PAVEMENT. FILL EXCAVATIONS WITH

DENSE GRADED HOT MIX ASPHALT MATCHING EXISTING PAVEMENT DEPTHS.

3. PIPE SHALL BE LAID TO A TRUE, UNIFORM LINE AND GRADE. THE CONTRACTOR SHALL BE RESPONSIBLE FOR ESTABLISHING AND MAINTAINING PIPELINE ALIGNMENT AS INDICATED ON THE DRAWINGS. DISTANCES SHALL BE MEASURED WITH A STEEL TAPE.

4. ALL BURIED PIPE (TO INCLUDE PROCESS, DRAIN AND CHEMICAL LINES) SHALL HAVE METALLIC BLUE WARNING TAPE AFFIXED TO THE

TOP OF THE PIPE.

5. SEPARATION OF WATER AND SEWER LINES

A. PARALLEL INSTALLATION:

1. NORMAL CONDITIONS: WATER LINES SHALL BE AT LEAST 10 FEET HORIZONTALLY FROM A SEWER OR SEWER MANHOLE

WHENEVER POSSIBLE, AND THE DISTANCE SHALL BE MEASURED EDGE TO EDGE.

2. UNUSUAL CONDITIONS: WHEN LOCAL CONDITIONS PREVENT A HORIZONTAL SEPARATION OF AT LEAST 10 FEET, THE WATER

LINE MAY BE CLOSER TO A SEWER OR SEWER MANHOLE PROVIDED THAT:

a. THE BOTTOM OF THE WATER LINE IS AT LEAST 18 INCHES ABOVE THE TOP OF THE SEWER.

b. WHERE THIS VERTICAL SEPARATION CANNOT BE OBTAINED, THE SEWER SHALL BE CONSTRUCTED OF AWWA APPROVED

WATER PIPE PRESSURE-TESTED IN PLACE TO 50 PSI WITHOUT LEAKAGE PRIOR TO BACKFILLING. THE SEWER MANHOLE

SHALL BE OF WATERTIGHT CONSTRUCTION AND TESTED IN PLACE.

B. CROSSINGS:

1. NORMAL CONDITIONS: WATER LINES CROSSING OVER SEWERS SHALL BE AT LEAST 18 INCHES BETWEEN THE BOTTOM OF THE

WATER LINE AND THE TOP OF THE SEWER.

2. UNUSUAL CONDITIONS: WHEN LOCAL CONDITIONS PREVENT A VERTICAL SEPARATION DESCRIBED IN CROSSING, NORMAL

CONDITIONS, PARAGRAPH ABOVE, THE FOLLOWING CONSTRUCTION SHALL BE USED:

a. SEWERS PASSING OVER OR UNDER WATER LINES SHALL BE CONSTRUCTED OF THE MATERIALS DESCRIBED IN PARALLEL

INSTALLATION, UNUSUAL CONDITIONS, PARAGRAPH ABOVE.

b. WATER LINES PASSING UNDER SEWERS SHALL, IN ADDITION, BE PROTECTED BY PROVIDING:

i) A VERTICAL SEPARATION OF AT LEAST 18 INCHES BETWEEN THE BOTTOM OF THE SEWER AND THE TOP OF THE

WATER LINE.

ii) ADEQUATE STRUCTURE SUPPORT FOR THE SEWERS TO PREVENT EXCESSIVE DEFLECTION OF THE JOINTS AND

SETTLING ON THE WATER LINE.

ii) THAT THE LENGTH OF THE WATER LINE BE CENTERED AT THE POINT OF THE CROSSING SO THAT JOINTS SHALL BE

EQUIDISTANT AND AS FAR AS POSSIBLE FROM THE SEWER.

iv) WATER LINES SHALL NOT BE INSTALLED TO PASS THROUGH SEWER MANHOLES.

D4 PIPE BEDDING DETAIL

N.T.S.

N O

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O U

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1/2/2024

MCT

CRLM

D-501 10 15

DETAILS

M O

1. 4'x4' SQUARE PRECAST UTILITY VAULT SECTION MEETING ASTM WITH OPEN

TOP AND OPEN BOTTOM.

2. 9,000 GALLON WETWELL.

3. 2" CPVC SCH. 40 PIPE. SEE D-002.

4. 2" CPVC TRU-UNION.

5. 2" COUNTER WEIGHTED CHECK VALVE, ANSI FLANGED. SEE D-002, TYP OF 2.

6. 2" CPVC BALL VALVE, TRU-UNION. SEE D-002.

7. #67 STONE.

8. COMPACTED SUBGRADE.

9. GRATING SHALL BE REMOVABLE FIBERGLASS NON-SLIP TYPE. GRATING

SHALL BE AMERICAN PULTRUDED FIBERGLASS GRATING PT-20-33.

RESIN = ISO

COLOR = YELLOW

GRATING SHALL BE CONTINUOUSLY PERIMETER SUPPORTED BY

FIBERGLASS OR STAINLESS STEEL ANGLE MEMBERS. ALL HARDWARE

ASSOCIATED WITH THE GRATING SYSTEM SHALL BE STAINLESS STEEL.

TOP OF GRATING TO BE FLUSH WITH TOP OF STRUCTURE.

10. MECHANICALLY INSTALLED RUBBER BOOT STYLE CONNECTOR MEETING

ASTM C923. STRUCTURE TO BE CORE DRILLED.

11. PROCO 240-AV/EE FLANGED SINGLE ARCH EXPANSION JOINT SETUP TO

ALLOW EXPANSION AND CONTRACTION.

12. HEAT TRACE AND INSULATE (2 INCHES FIBERGLASS INSULATION WITH

CORROSION RESISTANT HARDENED PROTECTIVE LAYER) ALL PIPING IN

VAULT. HEAT TRACE VALVES ONLY.

13. CORROSION RESISTANT ADJUSTABLE PIPE SUPPORT TOP UNIT THREADED

OR WELDED TO VERTICAL SUPPORT.

14. 3" MIN. O.D. BASE FLANGE THREADED OR WELDED TO VERTICAL SUPPORT

PIPE.

15. 1½" SCH. 40 STEEL PIPE.

16. PIPE SUPPORT ASSEMBLY, TYP OF 4.

17. BOOT CONNECTOR, SEE D-002.

18. FLOW METER, SEE D-002.

19. ELECTRICALLY ACTUATED CONTROL VALVE. SEE D-002.

20. 1" PVC AIR RELEASE AND VACCUM VALVE.

SHEET KEY NOTES

D2 FLOW METER VAULT DETAIL AND ELEVATION

SCALE: 1/2" = 1'-0" 0 2' 4'D1 VALVE VAULT DETAIL AND ELEVATION

SCALE: 1/2" = 1'-0" 0 2' 4'

PLAN ELEVATIONPLAN ELEVATION

D3 CONTROL VALVE VAULT DETAIL AND ELEVATION

SCALE: 1/2" = 1'-0" 0 2' 4'

PLAN ELEVATION

SHEET OF

SHEET TITLE

CHECKED BY:

DRAWN BY:

DATE:

PROJECT NO:

K D

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C D

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1/ 9/

U M

1/ 9/

GENERAL NOTES:

A. THE FOLLOWING NOTES APPLY TO THE ENTIRE PROJECT.

1. POWER, CONTROL AND NETWORK WIRING/CABE REQUIREMENTS:

a. ALL WIRE INSTALLED UNDER THIS CONTRACT FOR 120V TO 600V POWER FEEDERS, DISTRIBUTION AND BRANCH CIRCUITS SHALL BE COPPER AND SHALL BE

MINIMALLY RATED FOR 75 DEGREES C WET CONDITIONS.

b. TSP CABLE FOR ANALOG SIGNALS SHALL BE BELDON 8760 MULTI-CONDUCTOR - SHIELDED TWISTED PAIR: 18 AWG STRANDED (16x30) TINNED COPPER CONDUCTORS, POLYETHYLENE INSULATION, TWISTED PAIR, OVERALL BELDFOIL® SHIELD (100% COVERAGE), 20 AWG STRANDED TINNED COPPER DRAIN WIRE, PVC JACKET AND 60 C

RATED.

c. CONDUCTORS CARRYING DIGITAL SIGNALS SHALL BE 14 AWG SOLID COPPER 60 C RATED WITH PVC JACKETING.

d. ALL ETHERNET CABLES SHALL BE SHIELDED CAT6 60 C CABLE RATED FOR WET CONDITIONS, METALLIC AND NON-METALLIC CONDUIT USE.

e. ALL FIBER OPTIC CABLE FURNISHED AND INSTALLED SHALL MEET THE FOLLOWING:

i. 6 STRAND, MULTIMODE, 50/125 10GB, OM4, DISTRIBUTION CABLE, OFNP PLENUM RATED, INDOOR/OUTDOOR, TIGHT BUFFER, AQUA OUTER JACKET.

OCC # DX006TAL39QP.

ii. BURIED FIBER OPTIC CABLE SHALL BE IN 1.5" SCH 80 PVC CONDUIT PAINTED ORANGE BURIED AT LEAST 12 INCHES BELOW GRADE. LOCATOR TAPE WITH TRACER WIRE

SHALL BE ATTACHED TO ALL BURIED CONDUIT CARRYING FIBER OPTIC.

iii. INSTALLED INSIDE A BUILDING SHALL BE IN 1.5" ORANGE COLORED SCH. 80 PVC CONDUIT.

iv. ATTACHED TO AN EXISTING STRUCTURE EXPOSED TO ELEMENTS SHALL BE IN A 1.5" ORANGE COLORED SCH. 80 PVC CONDUIT.

v. ALL BENDS AND TRANSITIONS SHALL COMPLY WITH MANUFACTURER STATED MINIMUM BEND RADIUS AND TERMINATION REQUIREMENTS.

2. ALL EQUIPMENT SHALL BE INSTALLED IN ACCORDANCE WITH LOCAL CODES AND REGULATIONS.

3. ALL EQUIPMENT SHALL BE PROVIDED WITH LAMICOID NAMEPLATES (3/16" LETTERING MIN.). PLATES SHALL BE BLACK WITH WHITE LETTERS.

4. ALL ENCLOSURES AND CONTROL PANELS SHALL BE AS FOLLOWS UNLESS SPECIFICALLY NOTED OTHERWISE:

a. UL LISTED FOR THE INTENDED PURPOSE. THIS INCLUDES UL5O8A FOR ALL "ENCLOSED INDUSTRIAL CONTROL PANELS".

b. ENCLOSURES MOUNTED INSIDE A ROOM WITHOUT ANY PROCESS PIPING: UL TYPE-12 MINIMUM. ENCLOSURES MOUNTED INSIDE A ROOM THAT CONTAINS PROCESS

PIPING: UL TYPE 3R MINIMUM. ENCLOSURES MOUNTED OUTSIDE: UL TYPE 4X MINIMUM.

c. ALL ENCLOSURES SHALL BE PROVIDED WITH AMBIENT COMPENSATION AS REQUIRED BY THE INSTALLED EQUIPMENT: AIR CONDITIONER FOR ANY ENCLOSURE WITH A

VFD THAT IS MOUNTED OUTSIDE; HEATER AND COOLING FANS FOR ALL ENCLOSURES.

5. BUILDING PLAN VIEWS (POWER DISTRIBUTION AND LIGHTS/RECEPTACLES):

a. PROVIDE AND INSTALL ALL CONDUIT, WIRE AND SWITCHES AS REQUIRED FOR BUILDING LIGHTS.

b. REFERENCE E-601 AND PANELBOARD SCHEDULES FOR CIRCUIT QUANTITIES.

c. REFERENCE PLAN VIEWS FOR FIXTURE QUANTITIES, LOCATIONS AND DISTANCES.

6. REFERENCE SITE PLAN DRAWINGS FOR EQUIPMENT SITE LOCATIONS AND DISTANCES.

7. CONDUIT SPECIFICATION

a. ALL ABOVE GRADE CONDUIT SHALL BE SCH 80 PVC UV RESISTANT, SOLVENT WELDED AND RATED FOR WET AND CORROSIVE ENVIRONMENTS UNLESS NOTED

OTHERWISE.

b. ALL CONDUIT INSIDE AN ENCLOSED BUILDING SHALL BE SCH 80 PVC UV RESISTANT, SOLVENT WELDED AND RATED FOR WET AND CORROSIVE ENVIRONMENTS

UNLESS NOTED OTHERWISE.

c. ALL BELOW GRADE CONDUIT NOT IN A DUCT BANK SHALL BE SCHEDULE 80 PVC SOLVENT WELDED AND RATED FOR WET AND CORROSIVE ENVIRONMENTS.

d. PROVIDE DUCT BANKS AS SHOWN ON THE ELECTRICAL DRAWINGS.

8. THE LIST OF EQUIPMENT, TABULATIONS OF DATA, AND SCHEDULES APPEARING ON THE DRAWINGS ARE INCLUDED ONLY FOR THE ASSISTANCE AND GUIDANCE OF THE CONTRACTOR IN ARRIVING AT A MORE COMPLETE UNDERSTANDING OF THE INTENDED INSTALLATION. THEY ARE NOT INTENDED, NOR SHALL BE CONSTRUED, AS RELIEVING THE RESPONSIBILITY OF THE CONTRACTOR IN MAKING HIS OWN TAKEOFF AND PROVIDING ALL REQUIRED WORK AND COORDINATION AS REQUIRED BY THE CONSTRUCTION DOCUMENTS, SPECIFICATIONS AND ALL APPLICABLE CODES AND STANDARDS TO ACHIEVE A COMPLETE AND FUNCTIONING SYSTEM.

9. THE ELECTRICAL DRAWINGS ARE GENERALLY DIAGRAMMATIC. COORDINATE WORK WITH ALL TRADES PRIOR TO STARTING CONSTRUCTION SO THAT INTERFERENCE IS

AVOIDED.

10. ELECTRICAL AND CONTROL WIRING CONDUIT ROUTING HAS NOT BEEN SHOWN ON THE DRAWINGS. CONDUIT ROUTING SHALL BE COORDINATED IN THE FIELD BY THE CONTRACTOR TO MEET SPECIFICATIONS, CODE REQUIREMENTS, AND TO PROVIDE A NEAT, WORKMAN LIKE, FULLY OPERATIONAL SYSTEM.

11. CONSOLIDATION OF INDIVIDUAL CONDUITS SHOWN ON THE DRAWINGS SHALL BE PERMITTED WITH THE FOLLOWING CONDITIONS: THE ELECTRICAL CONTRACTOR SHALL SIZE CONDUITS AND DE-RATE WIRE AS REQUIRED BY THE NEC AND FULLY DOCUMENT ALL CHANGES TO THE CIRCUITS AS SHOWN ON THE PLANS FOR RECORD. HOWEVER, AC POWER, DC POWER, ANALOG, AND DIGITAL SHALL NOT BE IN THE SAME CONDUIT AND EACH SHALL HAVE THEIR OWN DEDICATED CONDUITS.

12. WIRE CONDUIT SIZES AND QUANTITIES FOR FEEDERS AND BRANCH CIRCUITS WHICH ARE SHOWN ON ONE-LINE DIAGRAMS APPLY TO PLAN SHEETS.

13. UNLESS INDICATED, WIRING SHALL BE CONSIDERED #12, #12 G, IN 3/4" CONDUIT. CONDUIT SIZES AS SHOWN ARE BASED ON THWN INSULATED WIRE. THE CONTRACTOR SHALL VERIFY CONDUIT SIZE WILL MEET NEC CONDUIT FILL REQUIREMENTS IF USING WIRING WITH A DIFFERENT INSULATION TYPE OR THICKNESS OR WHEN

CONSOLIDATING CONDUITS.

14. THE CONTRACTOR SHALL CONSIDER VOLTAGE DROP WHEN DETERMINING THE EXACT ROUTING OF BRANCH CIRCUIT AND FEEDER WIRING ADJUST WIRE AND CONDUIT SIZE

AS NECESSARY TO COMPLY WITH THE NEC.

15. LIGHT FIXTURES SHALL BE PROVIDED COMPLETE WITH ALL ACCESSORIES AND MISCELLANEOUS HARDWARE REQUIRED FOR PROPER INSTALLATION.

16. PROVIDE FINAL CONNECTIONS TO ALL EQUIPMENT SHOWN ON THE DRAWINGS. DRAWINGS INDICATE THE APPROXIMATE LOCATION OF THE EQUIPMENT. COORDINATE INSTALLATION REQUIREMENTS AND EXACT LOCATION WITH THE TRADE PROVIDING THE EQUIPMENT.

17. ALL PLCS ON THIS PROJECT SHALL BY ALLEN BRADLEY CONTROL LOGIXS WITH AN ETHERNET PORT AND SHALL BE ETHERNET IP.

18. CONDUITS FOR INSTRUMENTATION AND CONTROL WIRING ARE NOT EXPLICITLY SHOWN ON THE CONTRACT DOCUMENTS. DRAWING E-602 PROVIDES AN ITEMIZATION OF ALL DIGITAL AND ANALOG SIGNALS FOR EACH INSTRUMENT AND INDICATES WHERE THE WIRING SHALL BE TERMINATED/LANDED. DIGITAL AND ANALOG SIGNALS SHALL BE IN SEPARATE CONDUITS. MINIMUM CONDUIT SIZE FOR DIGITAL SIGNALS FOR EACH INSTRUMENT SHALL BE ¾”C. THE MINIMUM SIZE FOR ANALOG SIGNALS FOR EACH INSTRUMENT SHALL BE ¾”C. SEE DRAWING E-602 NOTES A, B, C, D, AND E FOR ADDITIONAL INFORMATION.

B. PROCESS CONTROL NARRATIVE:

1. GENERAL:

A. THE SUPPLIER OF PUMP STATION CONTROL PANEL SHALL BE RESPONSIBLE FOR PLC PROGRAMMING OF THE CONTROL PANEL TO ACHIEVE THE COMPLETE FUNCTIONALITY OF EACH RESPECTIVE SYSTEM IN ACCORDANCE WITH THE CONTRACT DOCUMENTS AND BELOW.

B. SEE E-001 NOTE 17 FOR PLC REQUIREMENTS.

C. EACH CONTROL PANEL SHALL BE FULLY ASSEMBLED AND PROGRAMMED PRIOR TO SHIPMENT TO THE PROJECT SITE.

2. PUMP STATION CONTROL PANEL:

A. THE PUMPING SYSTEM SHALL OPERATE IN A DUTY/BACKUP PUMP CONFIGURATION. THE LEAD PUMP WILL BE AUTOMATICALLY ALTERNATED WITH EACH LEAD PUMP CYCLE. THE PUMP STATION SHALL HAVE ONE MODE OF AUTOMATIC OPERATION, FLOW CONTROL.

B. MANUAL CONTROL WILL ALSO BE AVAILABLE VIA AN HOA SWITCH ON CONTROL PANEL COVER FOR EACH PUMP.

C. ALL CONTROL OF THE EFFLUENT PUMP STATION SHALL BE FROM THE PLC CONTAINED WITHIN THE SUPPLIED PUMP STATION CONTROL PANEL. THE PLC SHALL BE ALLEN BRADLEY CONTROL LOGIX FOR COMPATIBILITY AND MAINTENANCE-RELIABILITY WITHIN THE OWNERS WASTEWATER SYSTEM (SEE E-001).

D. FLOW CONTROL MODE SHALL BE ENGAGED AT THE HIM ON THE FRONT OF THE CONTROL PANEL AND SHALL ENTAIL THE PUMPING SYSTEM TO MAINTAIN AN OPERATOR ADJUSTABLE CONSTANT PUMPING RATE (GPM). INITIAL SETTING TO BE 14 GPM.

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File details come from the government source that posted it. Updated Apr 2, 2024.