14
CRW Project No. 15-5195 Addendum No. 2 MS-OR 5/09 // 16-1903.0801 Page 2 of 5
ITEM NO. 1 - PRE-BID MEETING ATTENDEES LIST Attached is the mandatory pre-bid meeting attendees list. ITEM NO. 2 - VOLUMES 1, 2, 3, and 4, TABLE OF CONTENTS A. In the Table of Contents, DELETE the initials “GRL” as the Person Responsible for Technical
Specification Sections 03 11 00, 03 60 00, 04 05 17, 04 22 00, 06 05 30, 06 10 00, 06 17 53, and 33 16 13, and REPLACE them all with the initials “TGM”.
B. Under Volume 2: Technical Specifications, Division 40 - Process Integration, ADD the following:
“40 05 23.24 JHF Check Valves 1 - 6”
ITEM NO. 3 - VOLUME 1, BIDDING AND CONTRACT DOCUMENTS - SECTION 00 21 13, INSTRUCTIONS TO BIDDERS A. On Page 10, DELETE Articles 3.05 and 3.06 in their entirety, and REPLACE with the following:
“3.05 Contractors qualified for inclusion in the Bid Proposal as the Reservoir Contractor
are:
1. CBI Services, LLC, Plainfield, IL 2. Paso Robles Tank - Brown-Minneapolis Tank, Inc., Paso Robles, CA 3. T Bailey, Inc., Anacortes, WA
3.06 Contractors qualified for inclusion in the Bid Proposal as the Tank Painting
Contractor are:
1. Coatings Unlimited, Inc., Kent, WA 2. Extreme Coatings, Inc. dba ECI Services, Pasco, WA 3. Petrochem Insulation, Inc., Vancouver, WA 4. Purcell P&C, LLC, Tukwila, WA 5. S & K Painting, Inc., Clackamas, OR 6. Simpson Sandblasting & Special Coatings, Inc., Fontana, CA 7. Unified Field Services Corporation, Bakersfield, CA”
ITEM NO. 4 - VOLUME 2, TECHNICAL SPECIFICATIONS - SECTION 09 97 14, STEEL WATER STORAGE TANK PAINTING A. On Page 19, DELETE Parts 2.5.C.1 and 2.5.C.2 in their entirety, and REPLACE with the
following:
CRW Project No. 15-5195 Addendum No. 2 MS-OR 5/09 // 16-1903.0801 Page 3 of 5
“1. Exterior Spot Primer:
a. Material: Mastic waterborne acrylic or approved equal material
1) Tnemec Series 118 Uni-bond Mastic. 2) Approved equal.
b. Dry Film Thickness: 3.0 to 5.0 mils.
2. Full Prime Coat:
a. Material: Mastic waterborne acrylic or approved equal material.
1) Tnemec Series 118 Uni-bond Mastic. 2) Approved equal.
b. Dry Film Thickness: 3.0 to 5.0 mils.
c. Color: Similar but contrasting color as the finish top coat.”
ITEM NO. 5 - VOLUME 2, TECHNICAL SPECIFICATIONS - SECTION 26 32 13.16, EMERGENCY GASEOUS ENGINE GENERATORS A. On Page 6, DELETE Part 2.3.D in its entirety, and REPLACE with the following:
“D. Service Load: 20 kW”
ITEM NO. 6 - VOLUME 2, TECHNICAL SPECIFICATIONS - SECTION 32 91 21, FINISH GRADING AND SEEDING A. On Page 2, DELETE Part 2.5.A in its entirety, and REPLACE with the following:
“A. Grass seed mix for all landscaped areas shall be as follows:
1. Low growing perennial ryegrass, with chewings fescue. 2. Application rate 7 - 10 lbs per 1,000 square feet pure live seed (PLS). 3. Pro-Time Companion Low Maintenance Mix, or approved equal.”
ITEM NO. 7 - VOLUME 2, TECHNICAL SPECIFICATIONS - SECTION 40 05 23.24, CHECK VALVES A. ADD the attached Section 40 05 23.24, Check Valves, into Volume 2, Technical Specifications.
CRW Project No. 15-5195 Addendum No. 2 MS-OR 5/09 // 16-1903.0801 Page 4 of 5
ITEM NO. 8 - VOLUME 4, DRAWINGS – SHEET C-2, SITE LAYOUT PLAN A. ADD the following Note 4 to the Notes provided in the bottom left corner of the sheet:
“4. ALL AREAS DISTURBED DURING CONSTRUCTION SHALL RECEIVE FINAL SURFACING AS GRAVEL ROADWAY (PER DETAILS ON SHEET C-16) OR SHALL BE SEEDED. CONTRACTOR SHALL PROVIDE TOPSOIL AND APPROVED SEED MIX ON ALL LANDSCAPED (NON-GRAVEL) AREAS PER THE SPECIFICATIONS AND SHALL ENSURE SUCCESSFUL SEED ESTABLISHMENT THROUGH THE MAINTENANCE PERIOD.”
ITEM NO. 9 - VOLUME 4, DRAWINGS – SHEET C-4, SITE PIPING AND DRAINAGE PLAN A. ADD the following Note 8 to the Notes provided in the bottom left corner of the sheet:
“8. FOR EXISTING VALVES IN LOCATIONS WHERE FINISHED GRADE IS HIGHER THAN EXISTING GRADE AND THE VALVE WILL BE BURIED 6 FEET OR DEEPER, SUCH AS THOSE VALVES ON THE EXISTING 12-INCH DI WATERLINE TO THE SOUTHWEST OF THE EXISTING RESERVOIR NO. 2 VALVE VAULT, THE VALVE BOX SHALL BE RAISED, AND THE VALVE NUT SHALL BE FURNISHED WITH APPROVED OPERATOR EXTENSIONS AS REQUIRED. SEE CRW STANDARD DETAIL 104 ON SHEET C-18 FOR MORE INFORMATION.”
ITEM NO. 10 - VOLUME 4, DRAWINGS – SHEET C-6, SITE PIPING PROFILES - 2 A. DELETE the callout at Station D0+09 in its entirety, and REPLACE with the following callout:
“STA D0+09 12”x6” TEE 12” IE=660.25 6” IE=660.50”
ITEM NO. 11 - VOLUME 4, DRAWINGS – SHEET C-9, SITE RETAINING WALL ‘A’ LAYOUT AND ELEVATION A. ADD the following Note 4 to the Notes provided in the top right corner of the sheet:
“4. FOR ALTERNATIVE RETAINING WALL ‘GABION’ STYLE TYPICAL DETAILS, SEE FIGURE 1 - GABION WALL DETAILS INCLUDED IN ADDENDUM NO. 2.”
ITEM NO. 12 - VOLUME 4, DRAWINGS – SHEET C-10, SITE RETAINING WALL ‘B’ LAYOUT AND ELEVATION A. ADD the following Note 5 to the Notes provided in the top right corner of the sheet:
“5. FOR ALTERNATIVE RETAINING WALL ‘GABION’ STYLE TYPICAL DETAILS, SEE FIGURE 1 - GABION WALL DETAILS INCLUDED IN ADDENDUM NO. 2.”
CRW Project No. 15-5195 Addendum No. 2 MS-OR 5/09 // 16-1903.0801 Page 5 of 5
ITEM NO. 13 - VOLUME 4, DRAWINGS – SHEET C-11, SITE RETAINING WALL ‘C’ LAYOUT AND ELEVATION A. ADD the following Note 4 to the Notes provided in the top right corner of the sheet:
“4. FOR ALTERNATIVE RETAINING WALL ‘GABION’ STYLE TYPICAL DETAILS, SEE FIGURE 1 - GABION WALL DETAILS INCLUDED IN ADDENDUM NO. 2.”
ITEM NO. 14 - VOLUME 4, DRAWINGS – SHEET C-14, CIVIL DETAILS - 1 A. REPLACE Sheet C-14 with the attached, revised Sheet C-14.
ITEM NO. 15 - VOLUME 4, DRAWINGS – SHEET C-15, CIVIL DETAILS - 2 A. In Section B-B of Detail 2, 48” MANHOLE (MH-4), DELETE the callout which reads “12-INCH
PVC OUTLET TO 8-INCH CI, OUT (NE) IE=635.50”, and REPLACE with the following callout: “12-INCH PVC OUTLET TO 8-INCH CI, OUT (NE) IE=635.10”
B. In Detail 3, FLAP VALVE AND ORIFICE DETAIL, DELETE the callout that begins “ORIFICE 2”
HOLE IN FLAP…”, and REPLACE with the following callout: “ORIFICE 2-INCH HOLE IN FLAP, MH-3 IE=636.40, AND MH-4 IE=635.30”
ITEM NO. 16 - VOLUME 4, DRAWINGS – SHEET M-2, 1.25 MG RESERVOIR PIPING DETAILS A. In Section A, 12-INCH OVERFOW SECTION, DELETE the callout for the 12-inch DI overflow
pipe IE, and REPLACE with the following callout: “IE=660.25”
B. In Section B, 6-INCH DRAIN SECTION, DELETE the callout for the 6-inch DI drain pipe IE, and
REPLACE with the following callout: “IE=660.50”
ITEM NO. 17 - VOLUME 4, DRAWINGS – SHEET M-6, 1.25 MG RESERVOIR INLET/OUTLET VALVE VAULT PLAN AND SECTION A. In the MATERIAL LIST, DELETE Item 5 in its entirety, and REPLACE with the following:
“ 5 12-INCH SWING CHK VLV, FLG, WITH EXTERNAL LEVER ARM”
1
CRW Project No. 15-5195 Check Valves 16-1903.0801 40 05 23.24 - 1
SECTION 40 05 23.24
CHECK VALVES
PART 1 GENERAL
1.1 SUMMARY
A. Work in this Section includes check valves for use in water and wastewater facilities. Work includes the furnish and install of all swing and silent check valves, complete, as shown on the Drawings and specified herein, including coating and lining, appurtenances, operators, and accessories.
B. Section includes:
1. Swing check valves, 1-inch through 4-inch diameter. 2. Swing check valves, 4-inch diameter and larger 3. Silent check valves. 4. Plastic check valves.
1.2 RELATED SECTIONS:
A. Section 40 05 23 - Common Work Results for Process Valves:
1.3 REFERENCE STANDARDS
A. American Society of Mechanical Engineers:
1. ASME B16.1 - Gray Iron Pipe Flanges and Flanged Fittings. 2. ASME B16.11 - Forged Fittings, Socket-Welding and Threaded. 3. ASME B16.42 - Ductile Iron Pipe Flanges and Flanged Fittings.
B. ASTM International:
1. ASTM A126 - Standard Specification for Gray Iron Castings for Valves, Flanges, and Pipe Fittings.
2. ASTM A536 - Standard Specification for Ductile Iron Castings.
3. ASTM B62 - Standard Specification for Composition Bronze or Ounce Metal Castings.
4. ASTM B148 - Standard Specification for Aluminum-Bronze Sand Castings.
5. ASTM D1784 - Standard Specification for Rigid Poly(Vinyl Chloride) (PVC) Compounds and Chlorinated Poly(Vinyl Chloride) (CPVC) Compounds.
CRW Project No. 15-5195 Check Valves 16-1903.0801 40 05 23.24 - 2
6. ASTM D2000 - Standard Classification System for Rubber Products in Automotive Applications.
7. ASTM D3222 - Standard Specification for Unmodified Poly(Vinylidene Fluoride) (PVDF) Molding Extrusion and Coating Materials.
8. ASTM D4101 - Standard Specification for Propylene Injection and Extrusion Materials.
C. American Water Works Association:
1. AWWA C508 - Swing-Check Valves for Waterworks Service, 2-In. Through 24-In. (50-mm Through 600-mm) NPS.
D. National Sanitation Foundation International:
1. NSF 61 - Drinking Water System Components - Health Effects.
1.4 SUBMITTALS
A. Section 01 33 00 - Submittal Procedures: Requirements for submittals.
B. As required by Section 40 05 23, Common Work Results for Process Valves.
PART 2 PRODUCTS
2.1 SWING CHECK VALVES, 1-INCH THROUGH 4-INCH DIAMETER
A. Description:
1. Horizontal T-pattern style. 2. 200# WOG. 3. Capable of functioning in the vertical position. 4. Connections shall be standard threaded or threaded for fire hose connections
where shown on plans
B. Materials:
1. Body Cap and Disc: Brass conforming to ASTM B584 C85400.
C. Manufacturer:
1. Figure 246 as manufactured by Red White Valve.
CRW Project No. 15-5195 Check Valves 16-1903.0801 40 05 23.24 - 3
2.2 SWING CHECK VALVES, 4-INCH DIAMETER AND LARGER
A. Description:
1. Meeting requirements of AWWA C508.
2. Type: Swing, resilient-seated, with outside lever and adjustable weight.
3. Flow Area: Full open.
4. Mounting: Horizontal or vertical.
5. Shall close tightly when the pressure downstream of the valve disc exceeds the upstream pressure.
6. Working Pressure: 150 psi
7. Tight sealing, shockless in operation and absolutely prevent the return of water back through the valve.
8. The disc shall be attached to the sic arm by means of a center pin, disc nut and washer providing 360-degree angular articulation but not rotation.
9. Pin Shaft:
a. Discs shall be suspended from a non-corrosive hinge pin shaft that shall rotate freely without the need for external lubrication.
b. The shaft shall be sealed where it passes through the body by means of a stuffing box and adjustable packing.
10. End Connections: As shown on Drawings ASME B16.1, flanged. End connections shall be rated to the working pressure requirements specified above.
B. Materials:
1. Body and Disc: Constructed of heavy cast iron conforming to ASTM A126 class B, or ductile iron conforming to ASTM A536.
2. Cover: Steel conforming to ASTM A36 or Ductile iron conforming to ASTM A536.
3. Disc Arm: Ductile iron conforming to ASTM A536.
4. Body Seat: Type 316 stainless steel or Bronze ASTM B62.
5. Disc Seat: Field-replaceable, NBR or Buna-N.
CRW Project No. 15-5195 Check Valves 16-1903.0801 40 05 23.24 - 4
6. Hinge Pin and Key: Stainless steel.
7. Rubber Components: NBR or Buna-N.
8. Connecting Hardware: Stainless steel.
C. Finishes:
1. Epoxy lining and coating conforming to AWWA C210.
2. For potable water service, epoxy lining and coating shall be provided with NSF 61 certification.
D. Manufacturer:
1. Cla-Val, 585 Series; 2. Val Matic, 7800 Series;
3. GA Industries, Figure No. 220-D; 4. Approved equal.
2.3 SILENT CHECK VALVES
A. Description:
1. Type: Globe-style, silent operating type that begins to close as the forward velocity diminishes and be fully closed at zero velocity, preventing flow reversal and resultant water hammer or shock.
2. Valve design shall incorporate a center-guided, spring-loaded poppet, guided at opposite ends and having a short linear stroke that generates a flow area equal to the pipe.
3. Valve Interior: Contoured and unrestricted to achieve maximum flow capacity along with minimum pressure drop.
4. Installation: Operation of the valve shall not be affected by the position of installation. It shall be capable of operating in the horizontal or vertical position with the flow op or down.
5. Valve Disc: Concave to the flow direction providing for disc stabilization, maximum strength and minimal flow velocity to fully open the valve.
6. All component parts shall be field replaceable without the need of special tools.
7. A replaceable guide bushing shall be provided and held in position by the valve’s spring.
CRW Project No. 15-5195 Check Valves 16-1903.0801 40 05 23.24 - 5
8. Spring: Designed to withstand 100,000 cycles without failure and exert a force which allows the valve to start opening at a differential pressure of .5 PSI (.04 KG/CM2) and to fully open at a flow velocity of 4 FPS (1.22 meters per second).
9. The valve disc and seat shall be field replaceable and have a seating surface finish of 32 micro-inch or better to insure positive seating at all pressures.
10. Valve shall be hydrostatically tested at 1.5 times the rated working pressure.
11. Working Pressure: 150 psi
12. End Connections: As shown on Drawings ASME B16.1, flanged. End connections shall be rated to the working pressure requirements specified above.
B. Materials:
1. Body: ASTM A536, ductile iron. 2. Trim: Stainless steel. 3. Spring: Stainless steel. 4. Resilient Seat: Buna-N
C. Finishes:
1. Epoxy lining and coating conforming to AWWA C210.
2. For potable water service, epoxy lining and coating shall be provided with NSF 61 certification.
D. Manufacturer:
1. Val-Matic, 1800 series. 2. Cla-Val, 581 series. 3. Approved equal.
2.4 SOURCE QUALITY CONTROL
A. Testing:
1. Hydrostatically test check valves at twice rated pressure, in conformance with requirements of AWWA C508.
2. Permitted Leakage at Indicated Working Pressure: None.
CRW Project No. 15-5195 Check Valves 16-1903.0801 40 05 23.24 - 6
PART 3 EXECUTION
3.1 INSTALLATION
A. Install check valves according to AWWA C508, Section 40 05 23 Common Work Results for Process Valve, and as recommended by manufacturer.
3.2 SERVICES PROVIDED BY MANUFACTURER’S REPRESENTATIVES
A. Provide the services of the valve manufacturer's representative to verify proper installation of the valves and to adjust the valves when construction is complete.
END OF SECTION
1'
1'
1'
REDLAND RESERVOIR NO. 3 ANDREHABILITATION OF RESERVOIR NO. 2CIP 15-5195
FEBRUARY 2018
16-1903
FIGURE 1 -GABION WALLDETAILS
ADDENDUM #2
NOTES:
1. INTERNAL CONNECTING WIRES ARE
TO BE INSTALLED ACROSS WIDTH OF
INTERIOR GABIONS AND ACROSS
WIDTH AND LENGTH OF END GABIONS.
2. INTERNAL CONNECTING WIRE,
CONTINUOUS TIE WIRE AND GABION
WIRE MESH SHALL BE GALVANIZED.
3. ALL JOINT CONNECTIONS SHALL BE
MADE USING 14 GAGE CONTINUOUS
WIRE.
4. INTERNAL CONNECTING WIRES TO BE
UNIFORMLY SPACED VERTICALLY AND IN
BOTH HORIZONTAL DIRECTIONS WITH A
MAXIMUM SPACING OF 1' BETWEEN
CONNECTIONS. RIPRAP TO BE PLACED
INCREMENTALLY PRIOR TO INTERNAL
CONNECTING WIRE IN 1' LIFTS.
5. INSTALL ONE LAYER OF MIRAFI 140N
GEOTEXTILE BETWEEN GABION BASKETS
AND ALL BACKFILL MATERIALS.
6. DETAIL 1, GABION WALL - TYPICAL
ELEVATION IS FOR A TYPICAL SINGLE
ROW DETAIL.
1" OVERLAP
NOTE: MINIMUM WIRE DIAMETER
0.12" OR 8 GAUGE.
1.80"
1.00"
1.05"
1.10"
1.90"
0.80"
0.4"
1.40"
NOTE: MINIMUM WIRE DIAMETER
0.15" OR 6 GAUGE.
SELVEDGE
WIRE
CONTINUOUS LACING WIRE
DOUBLE HALF HITCH LOOP
SINGLE HALF HITCH LOOP
DOUBLE HALF HITCH LOOP
SINGLE HALF HITCH LOOP
4"
NO
MIN
AL
SPACIN
G
TYPE 4
FASTENER,
SPIRAL BINDER
SPIRAL BINDER
MUST PASS
THROUGH EACH
MESH OPENING
TYPE 1 FASTENER - INTERLOCKING WIRE TYPE 2 FASTENER - OVERLAPPING RING
TYPE 3 FASTENER - LACING WIRE
TYPE 4 FASTENER - SPIRAL BINDER
WELDED MESH GABION
SPIRAL BINDER LACING DETAIL
13 GAUGE
SPIRAL BINDER
CRIMPED END OF
JOINT TO LOCK
INSTALL TYPE 1 OR TYPE 2 FASTENERS AT EACH MESH
OPENING ALONG GABION BASKET EDGE
TWISTED WOVEN MESH FABRIC
SINGLE CELL GABION
WELDED MESH FABRIC
THREE VERT & TWO
HORIZ WIRES
ENCOMPASSED
INTERNAL REINF
WIRE
SECURE W/ 5
TWISTS (MIN)
LOOPED AROUND 2 MESH OPENINGS
SIX INDEPENDENT
WIRES ENCOMPASSED
SECURED W/ 5
TWISTS (MIN)
INTERNAL
REINFORCING
WIRE
1'
1'
1'
BEFORE CLOSURE AFTER CLOSUREBEFORE CLOSURE AFTER CLOSURE
NOTE: MINIMUM WIRE DIAMETER
0.144" OR 9 GAUGE.
6'-0"
3'-0"
12" M
IN
EXIST GR
COMPACTED 3/4"-0 CR BFILL, TYP
GEOTEXTILE, SEE NOTE 5
TYPE 3 OR 4 WIRE CONN BETWEEN
GABION BASKETS, SEE DET 3
WIRE ENCLOSED LOOSE RIPRAP
8"-4" OPEN CR
-
1
SCALE: 1/2"=1'-0"
GABION WALL - TYPICAL ELEVATION
-
3
SCALE: NTS
GABION BASKETS - WIRE CONNECTION DETAILS
-
4
SCALE: NTS
GABION BASKETS -
INTERNAL WIRE CONNECTION DETAILS
-
2
SCALE: 1/4"=1'-0"
GABION WALL - TYPICAL SECTION
6" M
IN
1
6
1
2, MAX
S
L
P
V
A
R
I
E
S
SLP VARIES
4" PERF HDPE DRAIN
PIPE W/ ADS "DRAIN
GUARD" OR APPVD EQ
FOR ENTIRE LENGTH
OF RETAINING WALL,
SLP=1% MIN
BU
RIED
WALL D
EPTH
,
12" M
IN
BASE AG
GREG
ATE
DEPTH
, 6" M
IN
,
SEE N
OTE 2
BACK OF WALL REVEAL, 6" MIN
1
1
2
"-
3
4
" DRAIN
ROCK BACKFILL
3
4
"-0" CR BASE
AGGREGATE
NOTES:
1. ROUTE WEEP HOLE
DRAINS TO DAYLIGHT.
2. FINAL BASE AGGREGATE
DEPTH TO BE
DETERMINED BY
ENGINEER, FOLLOWING
SUBGRADE INSPECTION.
3. INSTALL GEOGRID AS
REQUIRED.
4. INSTALL ONE LAYER OF
MIRAFI 140N
GEOTEXTILE BETWEEN
GABION BASKETS AND
ALL BACKFILL
MATERIALS.
WALL CO
NTRO
L LIN
E
GEOTEXTILE,
SEE NOTE 5
-
5
SCALE: NTS
GABION BASKETS -
PIPE THRU GABION DETAIL
EXTERIOR GABION
PLACE ROCK
UNDER AND
AROUND
PIPE
PIPE
TIE WIRE,
SEE DET 4,
THIS, SHT
TYP
INSTALL PIPE THROUGH THE HOLES
AND INSTALL TIE WIRE ACROSS THE
FACES OF THE EXTERIOR GABIONS
AS SHOWN, 6" MINIMUM SPACING
CUT A HOLE THROUGH
THE WALLS OF THE
GABION, MATCH
OUTSIDE DIAMETER
OF PIPE, TYP
4" PIPE WEEP HOLE
DRAIN PIPE AT MIN 20'
OC, SLP=1% MIN,
SEE NOTE 1
SS SCREEN AT
PIPE END FOR
VARMINT
GUARD, TYP
EXTERIOR GABION
