B09_Amd8_-_Drawing_02-C7_6_Dec2025_0008.pdf
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- Solicitation number
- 140P2025R0082
About this file
This is a technical drawing document for wastewater infrastructure design at Death Valley National Park. Specifically, it depicts a lift station plan view (Sheet C7.6) showing the wet well and overflow tank configuration for a wastewater system rehabilitation project (Drawing No. 318717, PMIS/PKG No. 178069). The drawing is dated January 17, 2025, and was designed by V. Neary with technical review by C. Weaver.
The lift station is specified to utilize an Everlast 4000 Series duplex pump station with Smith & Loveless 4B2D*1 pumps or approved equal, capable of handling 250 GPM at 83 feet of total dynamic head with a 15 HP, 480V 3-phase motor and 9.125-inch impeller trim. The system includes a precast concrete wet well (6 feet diameter, 13 feet deep), a 15,000-gallon precast overflow tank with a 30-inch diameter access riser, vacuum priming pumps, and an 8-inch HDPE forcemain discharge line. Control is managed through a QuickSmart control panel with PLC controller, VFD pump starters, five float demand settings, individual hand-off-auto switches, elapsed time meters, pump cycle counters, and alarms for pump failure and water level conditions in a NEMA Type 4 steel enclosure. The design incorporates a 4-inch gate valve for draining the overflow tank, 6-inch Schedule 40 PVC overflow line, 4-inch Schedule 40 PVC drain line with flapper valve, and an 8-inch SDR 35 PVC inlet from collection manhole SSMH-CC-101. Link-seals are required at all concrete penetrations, and backfill specifications are referenced to specification section 31 23 33.
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Text version
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DATE:
DESIGNED:
TECH. REVIEW:
SUB SHEET NO.
PMIS/PKG NO.
DRAWING NO.
SHEET
OF
TITLE OF SHEET
178069
318717
DATE:
DESIGNED:
TECH. REVIEW:
SUB SHEET NO.
PMIS/PKG NO.
DRAWING NO.
SHEET
OF
TITLE OF SHEET
WASTEWATER DETAILS
LIFT STATION PLAN
178069
312 513
V. NEARY
V. NEARY
C. WEAVER
1.17.2025
DEATH VALLEY
NATIONAL PARK
318717 02-
C7.6NTS
A
C7.6
LIFT STATION WET WELL AND OVERFLOW TANK PLAN VIEW
4" GATE VALVE FOR DRAINING
OVERFLOW TANK INTO WET WELL
15,000-GALLON PRECAST
OVERFLOW TANK
30" DIA. ACCESS RISER
FOR OVERFLOW TANK,
TYP.
PROPOSED LIFT STATION BUILDING
SEE ARCHITECTURAL SHEETS
6" SCH 40 PVC WET
WELL OVERFLOW LINE
4" SCH 40 PVC DRAIN FROM VALVE
VAULT WITH FLAPPER VALVE
FOOTNOTES:
PUMP STATION TO BE EVERLAST 4000 SERIES DUPLEX WITH SMITH & LOVELESS
4B2D*1 PUMPS OR APPROVED EQUAL
· PUMP DESIGN CONDITION: 250 GPM @ 83FT TDH
· PUMP MUST BE CAPABLE OF PASSING SOLIDS 3" IN DIAMETER.
· PUMP MOTOR IS 15 HP - 480V 3-PHASE
· IMPELLER TRIM OF 9.125"
QUICKSMART CONTROL PANEL FUNCTIONAL REQUIREMENTS
· PLC CONTROLLER / INTERFACE
· VFD PUMP STARTERS
· 5 FLOAT DEMAND SETTINGS
· INDIVIDUAL HAND-OFF-AUTO SWITCHES FOR EACH PUMP
· ELAPSED TIME METER AND PUMP CYCLE COUNTER FOR EACH PUMP
· AUDIBLE AND VISUAL ALARM - PUMP FAILURE TO START, FAILURE TO PRIME,
HIGH/LOW WATER LEVEL
· DUPLEX GFI PROTECTED OUTLETS
· NEMA TYPE 4 STEEL ENCLOSURE
· SEE SPECIFICATION 33 32 00 FOR ALL PANEL REQUIREMENTS
NOTES:
1. SEE SHEETS C5.6, C8.21 AND C8.22 FOR PLAN VIEW, AND GENERAL ARRANGEMENT
OF STATION. DETAIL DOES NOT REFLECT OVERFLOW TANK AND WET WELL
ARRANGEMENT TO SCALE.
2. LINK-SEALS ARE TO BE INSTALLED AT ALL PENETRATIONS IN CONCRETE FOR PIPE
AND CONDUIT.
2. SEE SPECIFICATION SECTION 33 32 00 FOR EQUIPMENT REQUIREMENTS.
3. BACKFILL AROUND WET WELL AND OVERFLOW TANK SHALL BE PER SPECIFICATION
SECTION 31 23 33.
WET WELL
ACCESS HATCH
PRECAST CONCRETE WET WELL
6' DIAMETER - 13' DEEP
DISCHARGE
8" HDPE FORCEMAIN
EVERLAST 4000
SERIES PACKAGED
DUPLEX STATION
VACUUM PRIMING
PUMPS
QUICKSMART
PUMP CONTROL
PANEL
ROLL UP
GARAGE DOOR
ACCESS
133"
375" N
INLET
8" SDR 35 PVC
FROM SSMH-CC-101
| Sheets and Views |
| WASTEWATER DETAILS 7 |
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