Bolinas Community Public Utility District

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SHEET 1 OF 9 5/31/2018 AS INDICATED 2665-001 SCALE: DATE: PROJECT No.: LOCATION MAP TITLE SHEET 0.25 SCALE MILES PROJECT LOCATION 0 0.5 AND TANK INFORMATION EAST TANK REHABILITATION PROJECT BOLINAS COMMUNITY PUBLIC UTILITY DISTRICT TITLE SHEET TANK LOCATION MAP AND SITE ACCESS TANK ORIENTATION PLAN TANK ELEVATION PLAN TANK ANCHORS AND ANCHOR CHAIR DETAILS GENERAL NOTES AND ABBREVIATIONS GENERAL SITE PLAN DESCRIPTION DETAILS INLET AND OUTLET MODIFICATION DETAILS ALLAN RICHARDS, P.E. STETSON ENGINEERS, INC. SUITE K SAN RAFAEL, CALIFORNIA 94901 PHONE: (415) 457-0701 FACSIMILE: (415) 457-1638 2171 E. FRANCISCO BLVD. JENNIFER BLACKMAN, GENERAL MANAGER BOLINAS COMMUNITY PUBLIC UTILITY DISTRICT BOLINAS, CALIFORNIA 94924 P.O. BOX 390 PHONE: (415) 868-1224 270 ELM ROAD 4 8 3 9 7 6 5 2 1 SHEET No. SHEET INDEX 12 Suite K 780 4 880 Vallejo (415) 457-0701 EAST TANK REHABILITATION PROJECT San Rafael, CA. 94901 29 2171 E. Francisco Blvd., Oakland Stetson Engineers Inc. Alameda Co. Contra Costa Co. 12 37

Solano Co. 80 Richmond

Bay 280 Marin Co. Marin San Francisco San Pablo Bay

Sonoma Co. Marin Co. Tiburon 1 101 San Francisco 37 580 San Rafael Sausalito Novato

3rd St Fairfax Mill Valley

101 Kentfield BOLINAS COMMUNITY PUBLIC UTILITY DISTRICT Hwy Panoramic

Lucas Valley Rd San Anselmo

Drake

Petaluma Bollinas Dr Bollinas Woodacre San Geronimo 101 Nicasio VICINITY MAP

Stinson Beach Francis 1

Nicasio Valley Rd

Sir Bolinas Olema REVISION Point Reyes Station Inverness 1 No. DATE BY APPROVED 4 Pacific Ocean Drakes Bay 2 SCALE MILES 0 A.R. / G.T. R.F. A.R. G.T. PROJECT LOCATION

CHECKED: DESIGNED: DRAFTED:

Construction).dwg

Construction Plans for Bidding\East Tank Rehabilitation Project Plan Set (For Set Plan Project Rehabilitation Tank Bidding\East for Plans Construction F:\DATA\2665\East Tank Rehabilitation Project\Final Design\2018.05.31 Project\Final Rehabilitation Tank F:\DATA\2665\East GENERAL NOTES ABBREVIATIONS

AC ASPHALT - CONCRETE 1. The East Tank Rehabilitation Work (“Work”) generally involves anchoring, steel 3. Prior to starting any Work on site, the Contractor shall: ACP ASBESTOS - CEMENT PIPE welding and repairs, pipe retrofits, and recoating, associated with an existing APPROX APPROXIMATED 440,000 gallon potable water tank.¬ The anchoring and steel work includes all BCPUD BOLINAS COMMUNITY PUBLIC UTILITY DISTRICT A. Submit to the District, all policies of insurance, with the required materials, equipment, and labor necessary to drill anchor holes (23 total) and CCENTERL LINE install water tank anchor rods (also referred to as rock or soil anchors) in the endorsements, as specified in the Project Manual, Document 00821. CONC CONCRETE drilled holes in the locations and to the depths shown on the plans.¬ The CTS CATHODIC TEST STATION CY CUBIC YARDS component of the Work associated with installing the anchor rods includes DIAM DIAMETER post-tensioning and proof testing of the soil anchors, and all materials, B. Provide the District with the Telephone number, business or home address, mailing address, and names of the Site Supervisor, and the name and phone DIP DUCTILE IRON PIPE equipment, and labor associated with the post-tensioning and proof testing.¬ DISTRICT BOLINAS COMMUNITY PUBLIC UTILITY DISTRICT The anchor rod work also includes all equipment and labor necessary to weld number of the person who can be contacted in case of an emergency event on (E) EXISTING pre-fabricated steel anchor chairs (23 total) to the sides of the existing water the project site during the time the work is in progress. E ELECTRIC tank and attach the anchor rods to the anchor chairs.¬ The Work also involves all EG EXISTING GROUND equipment and labor necessary to install flexible pipe joints and fittings on the ELEV ELEVATION tank inlet and outlet pipes; labor and equipment to replace the existing faceplate C. Notify the District [Jennifer Blackman, General Manager] - (415) 868-1224 FL FLANGE [[email protected]] of the date and time the work will commence, five (5) FT FEET and float system for the water level indicator; labor and equipment to install a GALV GALVANIZED new welded steel cage to the existing exterior ladder on the upper 12-feet of working days prior to the start of work. IN INCHES the tank; and labor, materials, and equipment to install a new exterior ladder and L LENGTH ladder door on the lower 12-feet of the tank. The coating work includes MAX MAXIMUM sandblasting and recoating the entire exterior roof of the tank and spot repairs 4. The Contractor acknowledges and understands that there is a potential for high MIN MINIMUM of the exterior coating in isolated areas of corrosion.¬ The interior coating work traffic volume on the roadways to and from the Town of Bolinas, particularly during MISC MISCELLANEOUS requires sandblasting and recoating the entire tank interior. The exterior the summer season. MJ MECHANICAL JOINT coating work will also require sandblasting and recoating the lower 30-inches of (N) NEW 5. The existing water tank shall be fully contained with a containment system NOM. NOMINAL the tank shell to repair coatings damaged as a result of welding the anchor NTS NOT TO SCALE chairs to the exterior of the tank.¬ The steel surface preparation shall be approved by the District, prior to any sandblasting and coating work on the No. NUMBER SSPC-SP10 (full removal, near-white metal blast cleaning) for the interior and exterior of the tank. O.C. ON CENTER exterior areas that require recoating.¬ All exterior surfaces not requiring full PW POTABLE WATER removal of the existing coating shall be power washed, sanded with dual-orbital 6. All work detailed herein shall be constructed in accordance with the Contract R RADIUS sanders (power tool cleaning per SSPC-SP3) and topcoated to match the Documents. In the case of discrepancy or ambiguity in the Contract Documents Req'd REQUIRED SQ.FT. SQUARE FEET exterior areas of the tank that will receive complete blasting and recoating. and this set of drawings, Contractor is referred to Project Manual Document 700 Additional details for the work are described in the Project Manual, Document SS STAINLESS STEEL Section 5.7, Precedence of Documents. STD. STANDARD 01100. TBD TO BE DETERMINED 7. No revisions shall be made to these drawings without the approval of the District. TYP TYPICAL 2. The following tank accessories will be purchased by the District, and made WWATER W/ WITH available on site, for installation by the Contractor: 8. This plan does not authorize any work within public/private right-of-ways without ° DEGREES required approvals and/or permits. ' FEET OR MINUTES " INCHES OR SECONDS A. New faceplate and float system for the tank water level indicator. @AT 9. Any data and information provided by the District are for the Contractor's Ø DIAMETER information only. Any interpretations or conclusions drawn by the Contractor from # NUMBER B. New welded steel cage for the upper portion of the exterior ladder, them shall be the responsibility of the Contractor. %PERCENT galvanized finish (sanding and top coat required by contractor). 10. The Contractor shall exercise care and safety when working near existing utilities on the site including the adjacent water tank, and shall be fully responsible for any REFERENCE C. Prefabricated steel anchor chairs, unfished (blasting and coating required by damage, breakage, or leaks caused by the Contractor's work. contractor).

11. All areas disturbed by the Contractor's work shall be restored by the Contractor NUMERAL OR LETTER SHOWN INDICATES D. EBAA Flex-Joints for the tank inlet and outlet pipes, and additional pipe to match pre-existing conditions as nearly as possible, as determined by the DETAIL OR SECTION DRAWING District or it's Representative. fittings and valves needed to connect the EBAA flex-joints. DETAIL/SECTION 1 12. Given the proximity of the site to neighboring residents, the Contractor is 3 The Contractor's Bid for the Project should not include the costs to purchase or requested to take additional measures to reduce noise levels associated with its NUMERAL SHOWN INDICATES SHEET NUMBER ship Items A through D above -- The Contractor's Bid should only include the Work. ON WHICH DETAIL OR SECTION APPEARS costs to properly install these items.

EAST TANK

SITE ACCESS

SCALE (FEET) WE 0 125 250 500

No. DATEREVISION BY APPROVED DESIGNED: A.R. / G.T. / R.F. DATE: Stetson Engineers Inc. 5/31/2018 DRAFTED: 2171 E. Francisco Blvd., G.T. BOLINAS COMMUNITY PUBLIC UTILITY DISTRICT SCALE: SHEET Suite K TANK LOCATION MAP AND SITE ACCESS AS INDICATED San Rafael, CA. 94901 EAST TANK REHABILITATION PROJECT 3 OF 9 CHECKED: (415) 457-0701 PROJECT No.: A.R. 2665-001 Construction Plans for Bidding\East Tank Rehabilitation Project Plan Set (For Rehabilitation Project Plans for Bidding\East Tank Construction Construction).dwg F:\DATA\2665\East Tank Rehabilitation Project\Final Design\2018.05.31 Tank Rehabilitation F:\DATA\2665\East SHEET 4 OF 9 5/31/2018 AS INDICATED 2665-001 CHAIN LINK FENCE PARCEL BOUNDARY (APPROXIMATE) ELECTRICAL LINE LEGEND: SCALE: DATE: PROJECT No.: E? AUG., 1997. PREPARED BY TROTTER - YODER & ASSOCIATES, DATED DISTRIBUTION SYSTEM IMPROVEMENTS AS BUILT DRAWINGS TANK MATERIAL:...... WELDED STEEL TANK HEIGHT:...... 24 FEET (APPROX.) TANK DIAMETER:...... 56 FEET (APPROX.) TANK USE:...... POTABLE WATER VOLUME OF TANK:...... 440,000 GALLONS DATE CONSTRUCTED:...... 1968 (?) EAST TANK INFORMATION: A. BOLINAS COMMUNITY PUBLIC UTILITY DISTRICT WATER C. PERSONAL COMMUNICATION WITH BCPUD STAFF. CONTRACTOR SHALL USE CAUTION AND CONFIRM ALIGNMENTS B. AERIAL PHOTO NAIP 2016. PRIOR TO EXCAVATING. INFORMATION SHOWN ON THIS DRAWING ARE BASED ON: 2. ALL BURIED ELECTRICAL AND WATER LINES ARE APPROXIMATE. 1. ALL EXISTING FACILITIES, TOPOGRAPHY, AND OTHER SURVEY NOTES: GATE TANK INFORMATION GENERAL SITE PLAN AND

(E) 10" WATER SUPPLY TO TOWN PUMP HOUSE

(APPROX) 111.50 E?

112

E? E? (E) 4" PVC

APN 188-120-10 E?

E? E? (E) 24" MANWAY VALVE (E) OUTLET

(E) ELECTRIC BOX E? (E) HYDRANT GATE

(APPROX) (E) 10" AC OUTLET PIPE 111.50 E?

112.00 111 EAST TANK EAST TANK REHABILITATION PROJECT BOLINAS COMMUNITY PUBLIC UTILITY DISTRICT TANK FLOOR ELEVATION

E? (E) INLET (E) OVERFLOW PIPE AND DRAIN PIPE

110 DRAINAGE DITCH

109 ASPHALT -CONCRETE (E) 6" WATER INTAKE

E? (E) 6" C900 PVC WATER INTAKE Suite K E?

MEZA ROAD (415) 457-0701 San Rafael, CA. 94901

108 2171 E. Francisco Blvd., Stetson Engineers Inc.

107 DRAIN 112.00 (E) 6" WATER INTAKE WEST TANK

106 E?

105 (E) 6" ACP WATER MAIN

104

105 106

110

108 109 REVISION

114 107 112 S N

E? WE CHAIN LINK FENCE No. DATE BY APPROVED

E? A.R. / G.T. R.F. A.R. G.T. PARCEL BOUNDARY SCALE (FEET) 0 5 10 20

CHECKED: DESIGNED: DRAFTED:

Construction).dwg

(N) ANCHOR CHAIRS 23 REQUIRED; 10' MAX. O.C (SEE NOTE ON THIS PAGE)

(E) 56' DIAMETER TANK SHELL

NOTE: DISTRICT OR ITS REPRESENTATIVE SHALL MARK CENTERLINE LOCATIONS FOR EACH ANCHOR ON THE TANK. ANY FIELD ADJUSTMENTS TO ANCHOR CHAIR LOCATIONS SHALL BE MADE BY DISTRICT OR ITS REPRESENTATIVE.

20" DIA ROOF VENT (APPROX) 180° 0° - 360°

(E) 24" DIA. MANWAY (E) ASPHALT CONCRETE APPROX 21" WIDE FROM EDGE OF TANK SHELL

(E) STEEL RING 1/4" THICK 12" DEEP

(E) OVERFLOW PIPE AND DRAIN PIPE (E) 10" OUTLET NOZZLE PIPE AND GATE VALVE (E) 6" HYDRANT NOZZLE AND GATE VALVE (E) CP TEST STATION (E) WATER LEVEL GAUGE (E) CONDUITS FOR CP (E) 6" INLET NOZZLE (E) EXTERIOR LADDER AND GATE VALVE NEW 10" EBAA FLEX-JOINT AND FITTINGS (SEE SHEET 9) N

90° SCALE (FEET)

NEW 6" EBAA FLEX-JOINT AND FITTINGS 0 3.5 7 (SEE SHEET 9)

TANK OVERFLOW PIPE

(N) STEEL CAGE TO BE PURCHASED BY DISTRICT AND INSTALLED BY CONTRACTOR AROUND LADDER. WELD STEEL CAGE DIRECTLY TO LADDER. REFER TO DETAILS 1AND 2 SHEET 7

(E) WATER LEVEL GAUGE

TANK SHELL CONDUITS FOR CP 24'

(N) LOCKING LADDER DOOR

(E) 10" OUTLET NOZZLE PIPE MATCH LINE - SEE BELOW AND (N) GATE VALVE (N) PREFABRICATED ANCHOR (E) CP TEST STATION (E) 24" DIA. MANWAY (E) 6" HYDRANT NOZZLE CHAIRS PLACED AT 10' MAX (SEE NOTE ON SHEET 5 FOR 10'' MAX AND GATE VALVE (E) 6" INLET NOZZLE AND (N) GATE VALVE SPACING AND DETAILS ON SHEET 8) (SEE NOTE ON TANK FLOOR PLATE SHEET 5)

1 87'-112"

180° 270° 360° SCALE (FEET) 0 3.5 7

TANK SHELL

MATCH LINE - SEE ABOVE (N) PREFABRICATED ANCHOR (E) 24" DIA. MANWAY CHAIRS PLACED AT 10' MAX (SEE NOTE ON SHEET 5 FOR SPACING AND DETAILS ON SHEET 8)

1 87'-112"

3 4" SS ROUND BAR EXISTING HANDRAIL (TYP.) 1/4 "

1 12" 3" EXISTING TANK ROOF

6' (TYP.) EXISTING TANK ROOF 3 FALL PROTECTION ANCHOR DETAIL 7 NTS

NEW STEEL CAGE 90° (TYP.) (PURCHASED BY DISTRICT; INSTALLED BY CONTRACTOR) (N) FALL PROTECTION ANCHOR (4 TOTAL). 2 ANCHORS NOT SHOWN ON THIS PLAN. WELD NEW STEEL CAGE SEE DETAIL 3 THIS SHEET TO LADDER

EXISTING LADDER ON UPPER 12-FEET OF TANK

R 28'

(E) 32-INCH MANWAY WITH HINGED LID FOR ACCESS TO INTERIOR OF TANK

(E) HANDRAIL (TYP.)

WELD TO (E) STEEL LADDER OR (E) HANDRAIL, WHERE APPLICABLE

NEW LADDER WITH LOCKING DOOR (BY CONTRACTOR)

(E) LADDER

(N) STEEL CAGE WELDED TO LADDER AND HANDRAIL

(N) WELDED STEEL CAGE COTTERMAN SERIES C. SEE DETAIL 2 THIS SHEET

NEW LADDER REQUIRED FOR 1 TANK ROOF PLAN VIEW LOWER 12-FEET OF TANK 7 NTS (BY CONTRACTOR)

2 STEEL CAGE AND TANK DETAIL 7 NTS

103" 8 111" 7" MAX 2 CUT BAR AFTER TESTING HEX NUT, GALV 1" MIN TAIL ABOVE HEX NUT DOMED HEX NUT, GALV SPHERICAL SEAT, GALV TAIL

PRE-FABRICATED ANCHOR CHAIR BACK PLATE TO FLOOR PLATE 3 3/8" 1 8" Ø GALVANIZED THREADBAR 1'-11" 3 " BACK PLATE TAIL LENGTH AS REQUIRED TO EXTEND 8 THREADBAR 1" MIN ABOVE HEX NUT HEAT SHRINK WRAP OVER TAR-COATED TAPE. (E)TANK BOTTOM PLATE 3" MIN ABOVE GROUND AND 3" MIN BELOW GROUND BACK PLATE 3/8" TO SHELL EXISTING GRADE 1'-11" EXISTING ASPHALT-CONCRETE 1 EXISTING 4" STEEL RING

FREE STRESSING LENGTH 10' BELOW GROUND MIN.

1 22" NOM. CLASS 200 SMOOTH PVC SLEEVE IN FREE STRESS ZONE

2 PRE-FABRICATED ANCHOR CHAIR DETAIL 8 NTS

2" NOM. CORRUGATED POLYETHYLENE SLEEVE NOTE: THE ANCHOR CHAIRS (23 TOTAL) WILL BE PRE-FABRICATED, PURCHASED (BY DISTRICT) AND DELIVERED TO THE SITE FOR 3 GALVANIZED 1 8" Ø THREADBAR PRE-GROUTED CONTRACTOR TO INSTALL. DIMENSIONS OF PRE-FABRICATED IN 2" NOM. CORRUGATED POLYETHYLENE SLEEVE ANCHOR CHAIR SHOWN FOR REFERENCE ONLY.

GROUT (TYP.)

BOND LENGTH 15' MIN.

CENTRALIZER AS REQUIRED BY MANUFACTURER

GROUT CAP

6" MIN.

8" Ø DRILL HOLE

1 ANCHOR DETAIL 8 NTS

No. DATEREVISION BY APPROVED DESIGNED: A.R. / G.T. / R.F. DATE: Stetson Engineers Inc. TANK ANCHORS AND 5/31/2018 DRAFTED: 2171 E. Francisco Blvd., G.T. BOLINAS COMMUNITY PUBLIC UTILITY DISTRICT SCALE: SHEET Suite K ANCHOR CHAIR DETAILS AS INDICATED San Rafael, CA. 94901 EAST TANK REHABILITATION PROJECT 8 OF 9 CHECKED: (415) 457-0701 PROJECT No.: A.R. 2665-001 Construction Plans for Bidding\East Tank Rehabilitation Project Plan Set (For Rehabilitation Project Plans for Bidding\East Tank Construction Construction).dwg F:\DATA\2665\East Tank Rehabilitation Project\Final Design\2018.05.31 Tank Rehabilitation F:\DATA\2665\East ACTUAL DEPTH TO TOP OF ACTUAL DEPTH TO TOP OF EXISTING PIPE = 3-4 FEET EXISTING PIPE = 3-4 FEET

SECTION VIEW SECTION VIEW

PROFILE VIEW PROFILE VIEW

PLAN VIEW PLAN VIEW

1 INLET MODIFICATION DETAIL SCALE (FEET) 2 OUTLET MODIFICATION DETAIL SCALE (FEET) 9 0 1'-6" 3'-0" 9 0 1'-6" 3'-0"