E602-E602_0006.pdf

PDF 239 KB Posted

Attached to
GRCA 318719_Temporary WWTP at North Rim Federal contract opportunity
Solicitation number
140P2026R0075
Issued by
Department of the Interior National Park Service National Office

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Written by GovTribe AI ·

This is an electrical single-line diagram for a temporary wastewater treatment facility (WWTP) located at North Rim, Grand Canyon National Park. The diagram illustrates the complete electrical infrastructure and power distribution system required for the facility's operations.

The system comprises two 30kVA dry-type transformers (T1B and T2B) stepping down from 480V to 208/120V service with NEMA 3R weathershields, each feeding separate distribution panels (PB1-PB4). The facility includes multiple electrical loads distributed across several functional areas: hypochlorite and citric acid chemical storage rooms, caustic storage, and membrane storage containers, each equipped with 6,000 BTUH fan coil/condensing units, chemical injection pumps rated at 350 VA and 110V, and associated receptacles and lighting. The system also supplies power to screening channel equipment (2.5kW at 480V), influent and filtrate lift stations (4HP, 3kW each at 480V), immersion water heaters (72kW at 480V), unit heaters (5kW each at 480V), and a 2HP booster pump operating at 240V single-phase. All circuits are protected by appropriate breakers ranging from 20A to 200A, with main distribution panels rated at 35 KAIC and 22 KAIC. The cabling schedule specifies PVC conduit runs with appropriately sized copper conductors, including ground wires, connecting all components with detailed cable identification from source to destination.

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Other files for this federal contract opportunity

Other files attached to GRCA 318719_Temporary WWTP at North Rim, newest first.
File Type Posted
GRCA_318719_NR_TWWTP_Spec_Addm_1_0006.pdf PDF
E601-E601_0006.pdf PDF
Sol_140P2026R0075_Amd_0006.pdf PDF
Other_Updates_22_July_2026_0006.pdf PDF
Solicitation_140P2026R0075_Temp_WWTP_Q_and_A_July_15__2026_0005.pdf PDF
Sol_140P2026R0075_Amd_0005.pdf PDF
Sol_140P2026R0075_Amd_0004.pdf PDF
GRCA_318719_North_Rim_GIR_20250811_0004.pdf PDF
Q_and_A_dated_July_10_2026_0004.pdf PDF
Sol_140P2026R0075_Amd_0003.pdf PDF
Pre_Bid_Site_Visit_June_23_2026_Attendee_List_0002.pdf PDF
Sol_140P2026R0075_Amd_0002.pdf PDF
Sol_140P2026R0075_Amd_0001.pdf PDF
GRCA_318719_Temporary_WWTP_Pre-Bid_Map_0001.pdf PDF
B08_Attach_02_GRCA_318719_NR_TWWTP_Final_CD_20260610_Part3.pdf PDF
B08_Attach_02_GRCA_318719_NR_TWWTP_Final_CD_20260610_Part1.pdf PDF
B08_Attach_05_Solit_PSP_Vol_I_Exp_REQD.pdf PDF
B08_Attach_06_Solit_PSP_Vol_II_LmtOnSubcontracting_REQD.xlsx XLSX spreadsheet
Sol_140P2026R0075.pdf PDF
B08_Attach_02_GRCA_318719_NR_TWWTP_Final_CD_20260610_Part4.pdf PDF
B08_Attach_04_Contract_Price_Schedule_TWWTP_-_Blank_Only.xlsx XLSX spreadsheet
B08_Attach_07_Solit_PSP_Vol_I_PastPerf_REQD.pdf PDF
B08_Attach_08_Solit_PSP_Vol_II_BidBond.pdf PDF
B08_Attach_9_Solit_PSP_Vol_II_Equals_RELEASED_v1_25Feb25.pdf PDF
B08_Attach_10_Solit_PSP_Vol_II_GenRefs.pdf PDF
B08_Attach_03_AZ20260056_dated_May_18_2026.pdf PDF
B08_Attach_01_GRCA_318719_North_Rim_TWWTP_t_Project_Manual_20260610.pdf PDF
B08_Attach_02_GRCA_318719_NR_TWWTP_Final_CD_20260610_Part2.pdf PDF
B08_140P2026R0075.pdf PDF
Show all 29

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T1B 30kVA DRY TYPE 480 - 208/120V

NEMA 3R WITH WEATHERSHIELDS

T2B 30kVA DRY TYPE 480 - 208/120V

NEMA 3R WITH WEATHERSHIELDS

UH-4

Heater

5KW

480V/3PH

IWH-2

Water Heater 72kW

480V/3PH

110A 3P

200A 3P

50A 3P

MCB3

480/277 VAC

3Ø, 4W 200A

NEMA 3R

35KAIC

20A 3P

20A 1P

20A 1P

20A 1P

20A 2P

CU-4

FAN COIL / CONDENSING UNIT

6000 BTUH : 208-230V/1PH

PMP-6213

CITRIC ROOM PUMP 350 VA, 110V

RECEPTACLE: 20AMP, 120V

PMP-6214

CITRIC ROOM PUMP 350 VA, 110V

RECEPTACLE: 20AMP, 120V

AREA LIGHT : 120V

CITRIC ROOM

RECEPTACLES

20AMP, 120V

100A 3P

20A 1P

20A 1P

20A 1P

20A 1P

UH-1

Heater

5KW

480V/3PH

20A 3P

200A 3P

20A 3P

MCB4

480/277 VAC

3Ø, 4W 200A

NEMA 3R

35 KAIC

50A 3P

110A 3P

IWH-1

Water Heater 72kW

480V/3PH

UH-2

Heater

5KW

480V/3PH

20A 1P

20A 1P

20A 1P

20A 2P

CU-1

FAN COIL / CONDENSING UNIT

6000 BTUH : 208-230V/1PH

PMP-6111

SODIUM HYPO PUMP 350 VA, 110V

RECEPTACLE: 20AMP, 120V

EMERGENCY LIGHT: 120V

AREA LIGHT: 120V

HYPOCHLORITE

ROOM RECEPTACLES

20AMP, 120V

100A 3P

20A 1P

20A 1P

20A 1P

20A 1P

PB1

208/120 VAC

3Ø, 4W 100A

22KAIC

PB2

208/120 VAC

3Ø, 4W 100A

22KAIC

HYPOCHLORITE ROOM

CITRIC ROOM

TO MCB1TO MCB1

FILTRATE LIFT

STATION

PANEL

4HP

3KW

480V/3PH

20A 3P

INFLUENT LIFT

STATION

PANEL

4HP

3KW

480V/3PH

20A 3P

UH-3

Heater

5KW

480V/3PH

20A 3P

20A

1P PMP-6211

CITRIC ROOM PUMP 350 VA, 110V

RECEPTACLE: 20AMP, 120V

20A 1P

20A 1P

PMP-6112

SODIUM HYPO PUMP 350 VA, 110V

RECEPTACLE: 20AMP, 120V

20A 1P

PMP-6212

CITRIC ROOM PUMP 350 VA, 110V

RECEPTACLE: 20AMP, 120V

EXIT LIGHT: 120V

EXIT LIGHT : 120V

SCREENING CHANNEL PANEL

SCN-1011

2.5KW

480V/3PH

20A 3P

OUTDOOR LIGHT : 120VOUTDOOR LIGHT: 120V

G

G

N

G

N

G

N

N

GG

SURGE

ARRESTER

SURGE

ARRESTER

EMERGENCY LIGHT : 120V

PMP-6113

SODIUM HYPO PUMP 350 VA, 110V

RECEPTACLE: 20AMP, 120V

PMP-6114

SODIUM HYPO PUMP 350 VA, 110V

RECEPTACLE: 20AMP, 120V

G G

G G

20A 1P

20A 1P

20A 1P

20A 2P

CU-2

FAN COIL / CONDENSING UNIT

6000 BTUH : 208-230V/1PH

EMERGENCY LIGHT: 120V

AREA LIGHT: 120V

CAUSTIC

ROOM RECEPTACLES

20AMP, 120V

100A 3P

20A 1P

20A 1P

20A 1P

20A 1P

PB4

208/120 VAC

3Ø, 4W 100A

22KAIC

CAUSTIC STORAGE CONTAINER

EXIT LIGHT: 120V

OUTDOOR LIGHT: 120V

G N

G

TO T2B

TO PB4

PMP-6312

CAUSTIC ROOM PUMP 350 VA, 110V

RECEPTACLE: 20AMP, 120V

PMP-6311

CAUSTIC ROOM PUMP 350 VA, 110V

RECEPTACLE: 20AMP, 120V

TO PB3

20A 1P

20A 1P

20A 1P

20A 2P

CU-3

FAN COIL / CONDENSING UNIT

6000 BTUH : 208-230V/1PH

AREA LIGHT : 120V

MEMBRANE STORAGE

RECEPTACLES

20AMP, 120V

100A 3P

20A 1P

20A 1P

20A 1P

PB3

208/120 VAC

3Ø, 4W 100A

22KAIC

MEMBRANE STORAGE

CONTAINER

35A 2P

EXIT LIGHT : 120V

OUTDOOR LIGHT : 120V

N

EMERGENCY LIGHT : 120V

G G

TO T1B

BOOSTER PUMP 2HP - 1PH - 240V

PNEUMATIC PRESSURE SWITCH: 120V

CABLE ID FROM TO CONDUIT CABLE

N MCB3 T1B 2" PVC CONDUIT 1 SET [3#4, #6 (G)]*

O MCB3 IWH-2 2" PVC CONDUIT 1 SET [3#2, #6 (G)]*

P MCB3 UH-3 3/4" PVC CONDUIT 1 SET [3#12, #12 (G)]*

Q MCB3 UH-4 3/4" PVC CONDUIT 1 SET [3#12, #12 (G)]*

R MCB3 FILTRATE LIFT STATION

CONTROL PANEL 2" PVC CONDUIT 1 SET [3#12, #12 (G)]*

S MCB3 INFLUENT LIFT STATION

CONTROL PANEL 2" PVC CONDUIT 1 SET [3#12, #12 (G)]*

T T1B PB1 2" PVC CONDUIT 1 SET [3#2, #2(N), #6 (G)]*

TT T1B PB3 2" PVC CONDUIT 1 SET [3#2, #2(N), #6 (G)]*

CABLE ID FROM TO CONDUIT CABLE

U MCB4 T2B 2" PVC CONDUIT 1 SET [3#4, #6 (G)]*

V MCB4 IWH-1 2" PVC CONDUIT 1 SET [3#2, #6 (G)]*

W MCB4 UH-1 3/4" PVC CONDUIT 1 SET [3#12, #12 (G)]*

X MCB4 UH-2 3/4" PVC CONDUIT 1 SET [3#12, #12 (G)]*

Y MCB4 SCREEN CHANNEL PANEL 2" PVC CONDUIT 1 SET [3#12, #12 (G)]*

Z T2B PB2 2" PVC CONDUIT 1 SET [3#2, #2(N), #6 (G)]*

ZZ T2B PB4 2" PVC CONDUIT 1 SET [3#2, #2(N), #6 (G)]*

AutoCAD SHX Text N

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ZZ

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TT

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DATE:

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DESIGNED:

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TECH. REVIEW:

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SUB SHEET NO.

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PMIS/PKG NO.

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DRAWING NO.

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SHEET

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OF

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TITLE OF SHEET

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NORTH RIM - GRAND CANYON NATIONAL PARK

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A/E FIRM

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PRIME:

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HDR ENGINEERING, INC.

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PM: MATTHEW GOUGH

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DENVER, CO

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TEMPORARY WWTP

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SINGLE LINE DIAGRAM 2

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AutoCAD SHX Text 182752A

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T. VANG

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T. VANG

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T. MOORE

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MAY 2026

AutoCAD SHX Text 318719

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ELECTRICAL

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MCB3 CABLE/CONDUIT SCHEDULE

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MCB4 CABLE/CONDUIT SCHEDULE

AutoCAD SHX Text GENERAL NOTES 1. GROUNDING ELECTRODE SYSTEM GROUNDING ELECTRODE SYSTEM IS REQUIRED AT EVERY STRUCTURE AND BUILDING FED FROM MCBS. NEUTRAL IS NOT TO BE BONDED AT THE BUILDING GROUND.

AutoCAD SHX Text KEYNOTES: 1. ALL GROUNDING JUMPER TO BE ALL GROUNDING JUMPER TO BE #4/0 UNLESS OTHERWISE SHOWN. SEE DETAIL 3 ON SHEET E503 FOR GROUNDING ELECTRODE SYSTEM DETAIL. 2. DO NOT BOND NEUTRAL AND DO NOT BOND NEUTRAL AND GROUND TOGETHER. 3. BOND NEUTRAL (X0) TO BOND NEUTRAL (X0) TO GROUND AT TRANSFORMER T1B AND T2B. TRANSFORMERS COMPRISE SEPARATELY-DERIVED SYSTEMS.

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NOTE: (* COPPER CONDUCTORS WITH XHHW-2 INSULATION)

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NOTE: (* COPPER CONDUCTORS WITH XHHW-2 INSULATION)

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JUNE 2026

AutoCAD SHX Text 7/20/2026 Vang, Tou C:\Users\TVANG\DC\ACCDocs\HDR\10350545_NPS_GRCA_N_Rim_Utility_2022\Project Files\CAD_HDR\DRAWINGS\TEMPORARY WASTEWATER\ELECTRICAL\E601-E602.dwg Vang, Tou C:\Users\TVANG\DC\ACCDocs\HDR\10350545_NPS_GRCA_N_Rim_Utility_2022\Project Files\CAD_HDR\DRAWINGS\TEMPORARY WASTEWATER\ELECTRICAL\E601-E602.dwgVang, Tou C:\Users\TVANG\DC\ACCDocs\HDR\10350545_NPS_GRCA_N_Rim_Utility_2022\Project Files\CAD_HDR\DRAWINGS\TEMPORARY WASTEWATER\ELECTRICAL\E601-E602.dwg C:\Users\TVANG\DC\ACCDocs\HDR\10350545_NPS_GRCA_N_Rim_Utility_2022\Project Files\CAD_HDR\DRAWINGS\TEMPORARY WASTEWATER\ELECTRICAL\E601-E602.dwgC:\Users\TVANG\DC\ACCDocs\HDR\10350545_NPS_GRCA_N_Rim_Utility_2022\Project Files\CAD_HDR\DRAWINGS\TEMPORARY WASTEWATER\ELECTRICAL\E601-E602.dwg

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E602

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