42250065_SBR 1 and Digester 1 Rehab_Drawings.pdf

SITE

WWTP

APPROXIMATELY 33 MILES TO HARRISBURG

PROJECT AREA

GENERAL NOTES:

1. SEE SPECIFICATIONS SECTION 010100 - SUMMARY OF

WORK.

2. EXISTING FEATURES AS ORIGINALLY DESIGNED ARE SHOWN

IN BLACK LINEWORK AND TEXT - BASED ON DESIGN DRAWINGS

DATED SEPTEMBER 30, 2002, RELEASED FOR BID JULY 9, 2004

PREPARED BY SAIC ENGINEERING, INC.

3. PROPOSED WORK IS INDICATED WITH RED (OR OTHER

COLOR) TEXT, LINES, ARROWS, AND/OR CLOUDS.

4. VERIFIY ALL DIMENSIONS, EXISTING CONDITIONS, AND

FEATURES ON SITE. REPORT ANY DISCREPANCIES TO DMVA.

DO NOT SCALE DRAWINGS TO OBTAIN DIMENSIONS OR

DISTANCES.

TANK DEWATERING NOTES:

1. OWNER WILL DRAIN AND TRANSFER BULK LIQUID FROM

TANKS USING EXISTING FACILITIES.

2. CONTRACTOR SHALL PROVIDE PUMPS, CRANE, CONTAINERS,

MECHANICAL DEVICES, AND RELATED EQUIPMENT TO

COMPLETELY DEWATER AND REMOVE LIQUIDS FROM TANKS.

CONTRACTOR SHALL MAINTAIN EQUIPMENT AS NEEDED

DURING CONSTRUCTION TO DEWATER TANKS.

3. LIQUID REMOVED SHALL BE TRANSFERRED TO ADJACENT

TANKS TO REMAIN IN OPERATION.

4. INORGANIC SOLIDS (GRIT, RAGS, SEDIMENT, ETC.) SHALL NOT

BE TRANSFERRED TO ADJACENT TANKS AND SHALL BE REMOVED

AND DISPOSED OF PROPERLY.

DEMOLITION NOTES:

1. REMOVE ALL EQUIPMENT AND COMPONENTS DESIGNATED

TO BE REPLACED. KEEP AND STORE MOTORS, PUMPS,

INSTRUMENTS, VALVES, VALVE ACTUATORS, MIXER ASSEMBLIES,

DECANT ASSEMBLIES, AND RELATED ITEMS AS DIRECTED BY

DMVA. PROPERLY DISPOSE OF ALL OTHER MATERIALS AND

EQUIPMENT REMOVED DURING THE PROJECT OFF SITE IN AN

APPROVED MANNER.

2. CUT EXISTING ANCHORS AND FASTENERS IN CONCRETE

WALLS. REPAIR IN ACCORDANCE WITH THE PROPOSED COATING

MANUFACTURER'S RECOMMENDATIONS.

3. CONTRACTOR IS RESPONSIBLE FOR MEANS AND METHODS

AND PROVISION OF ALL LABOR, EQUIPMENT AND RESOURCES

REQUIRED TO EMPTY, CLEAN AND PREPARE SBR AND DIGESTER

TANKS FOR THE WORK IN ACCORDANCE WITH THE COATING

MANUFACTURER'S RECOMMENDATIONS AND REQUIREMENTS.

THIS INCLUDES REMOVAL OF ANY AND ALL ACCUMULATED

SEDIMENT, SOLIDS, GRIT, RAGS, ETC. IN SBR AND DIGESTER

TANKS USING MECHANICAL OR MANUAL METHODS. ALL WASTE

REMOVED FROM THE TANKS SHALL BE HAULED OFF SITE AND

DISPOSED OF AT AN APPROVED LANDFILL OR TREATMENT

FACILITY. TRANSPORT METHODS SHALL MEET REQUIREMENTS

FOR THE WASTE MATERIAL BEING HAULED. CONTRACTOR

SHALL APPLY FOR AND OBTAIN ALL REQUIRED APPROVALS/

PERMITS FOR HAULING AND DISPOSAL OF WASTE.

CONSTRUCTION NOTES (SHEET C.2.1):

1. REMOVE EXISTING INFLUENT BAFFLE. PROVIDE NEW SS INFLUENT BAFFLE.

2. REMOVE EXISTING INFLUENT PLUG VALVE AND ELECTRIC ACTUATOR.

PROVIDE NEW INFLUENT PLUG VALVE AND ELECTRIC ACTUATOR.

3. REMOVE EXISTING FLOATING DECANTER ASSEMBLY, RESTRAINED MOORING

SYSTEM, DISCHARGE PIPE AND FLEX JOINTS. PROVIDE NEW FLOATING

DECANTER ASSEMBLY, RESTRAINED MOORING SYSTEM, DISCHARGE PIPE AND

FLEX JOINTS, EQUIPMENT AND ACCESSORIES.

4. REMOVE EXISTING DECANT FLOW CONTROL VALVE. PROVIDE NEW DECANT

FLOW CONTROL VALVE.

5. REMOVE EXISTING SUPERNATENT WITHDRAWAL MECHANISM. PROVIDE

NEW SUPERNATENT WITHDRAWAL MECHANISM INCLUDING 8" PIPE, SWIVEL

JOINT, 8"X6" REDUCER, 6" PLUG VALVE, 8" PIPE FLANGE ASSEMBLY AND

COUNTERWEIGHT SYSTEM (SIMILAR TO EXISTING), EQUIPMENT AND

ACCESSORIES.

6. REPLACE DUCTILE IRON INFLUENT PIPE FROM WALL TO BAFFLE. MATCH

EXISTING MATERIAL - PROVIDE CLASS 52 FLANGED DUCTILE IRON PIPE

MINIMUM. PAINT PIPE TO MATCH ORIGINAL EXISTING COATING.

SEE NOTE 1

SEE NOTE 1

SEE NOTE 2

SEE NOTE 3

SEE NOTE 4

SEE NOTE 5

SEE NOTE 5

SEE NOTE 6

SEE NOTE 2 ON

SHEET C.2.1

SEE NOTE 4 ON

SHEET C.2.1

CONSTRUCTION NOTES

(SHEET C.2.3):

1. THIS SHEET PROVIDED FOR

INFORMATION ONLY. FIELD VERIFY

EXISTING EQUIPMENT INSTALLATION

DETAILS AND COORDINATE

PROPOSED EQUIPMENT

DIMENSIONS, LAYOUT, AND

FABRICATION.

2. SEE NOTE 3 AND 4 SHEET C.3.1.

MOTOR

CONSTRUCTION NOTES (SHEET C.3.2):

1. THIS SHEET PROVIDED FOR INFORMATION ONLY. FIELD VERIFY EXISTING EQUIPMENT INSTALLATION

DETAILS AND COORDINATE PROPOSED EQUIPMENT DIMENSIONS, LAYOUT, AND FABRICATION.

2. SEE NOTE 1 AND 2 SHEET C3.1.

CONSTRUCTION NOTES (SHEET C.3.3):

1. FIELD VERIFY EXISTING EQUIPMENT INSTALLATION DETAILS AND

COORDINATE PROPOSED EQUIPMENT DIMENSIONS, LAYOUT, AND

FABRICATION.

2. SEE NOTE 3 SHEET C.2.1.

3. SEE NOTE 5 AND 6 SHEET C.3.1.

4. SEE NOTE 9 SHEET C.3.1.

PROVIDE 3" FLANGED DUCTILE

IRON PIPE AND FITTINGS FOR SBR

AND DIGESTER SLUDGE PUMP

DISCHARGE

PROVIDE 4"x3" REDUCER DOWNSTREAM OF VALVES TO TRANSITION TO 4" DUCTILE IRON PIPE

REMOVE EXISTING PIPE

THROUGH WALL AND

PROVIDE 3" DUCTILE IRON

SPOOL PIECE (FLANGE x

RESTRAINED FLANGE

ADAPTER) WITH LINK-SEAL

THROUGH WALL; APPLY

COATING SYSTEM TO PIPE

OPENING AND WALLS

BEFORE INSTALLING PIPE

NOTE: INSTALL VALVES IN

APPROX. SAME LOCATION AS

ORIGINAL WITH ADJUSTMENTS

TO MAKE OPERATING NUT

ACCESSIBLE FROM WALKWAY

WALL-BASE KEYWAY REPAIRS

REMOVE FAILING / LOOSE GROUT AT KEYWAYS. CUT EDGES VERTICAL

AT 1/8" DEPTH MINIMUM TO ENSURE SUFFICIENT DEPTH FOR REPAIR

MATERIAL. PROVIDE EPOXY MODIFIED CEMENTITIOUS MORTAR FOR

AREAS UP TO 1/4" DEPTH OR CEMENTITIOUS REPAIR MORTAR FOR

DEEPER SECTIONS IN ACCORDANCE WITH MANUFACTURER'S

INSTRUCTIONS TO REPLACE REMOVED MATERIAL.